UAS.cc 118 KB
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/*===================================================================
======================================================================*/

/**
 * @file
 *   @brief Represents one unmanned aerial vehicle
 *
 *   @author Lorenz Meier <mavteam@student.ethz.ch>
 *
 */

#include <QList>
#include <QMessageBox>
#include <QTimer>
#include <QSettings>
#include <iostream>
#include <QDebug>
#include <cmath>
#include <qmath.h>
#include "UAS.h"
#include "LinkInterface.h"
#include "UASManager.h"
#include "QGC.h"
#include "GAudioOutput.h"
#include "MAVLinkProtocol.h"
#include "QGCMAVLink.h"
#include "LinkManager.h"
#include "SerialLink.h"

#ifdef QGC_PROTOBUF_ENABLED
#include <google/protobuf/descriptor.h>
#endif

/**
* Gets the settings from the previous UAS (name, airframe, autopilot, battery specs)
* by calling readSettings. This means the new UAS will have the same settings 
* as the previous one created unless one calls deleteSettings in the code after
* creating the UAS. 
*/
UAS::UAS(MAVLinkProtocol* protocol, int id) : UASInterface(),
    uasId(id),
    startTime(QGC::groundTimeMilliseconds()),
    commStatus(COMM_DISCONNECTED),
    name(""),
    autopilot(-1),
    links(new QList<LinkInterface*>()),
    unknownPackets(),
    mavlink(protocol),
    waypointManager(this),
    thrustSum(0),
    thrustMax(10),
    startVoltage(-1.0f),
    tickVoltage(10.5f),
    lastTickVoltageValue(13.0f),
    tickLowpassVoltage(12.0f),
    warnVoltage(9.5f),
    warnLevelPercent(20.0f),
    currentVoltage(12.6f),
    lpVoltage(12.0f),
    batteryRemainingEstimateEnabled(true),
    mode(-1),
    status(-1),
    navMode(-1),
    onboardTimeOffset(0),
    controlRollManual(true),
    controlPitchManual(true),
    controlYawManual(true),
    controlThrustManual(true),
    manualRollAngle(0),
    manualPitchAngle(0),
    manualYawAngle(0),
    manualThrust(0),
    receiveDropRate(0),
    sendDropRate(0),
    lowBattAlarm(false),
    positionLock(false),
    localX(0.0),
    localY(0.0),
    localZ(0.0),
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    globalEstimatorActive(false),
    latitude_gps(0.0),
    longitude_gps(0.0),
    altitude_gps(0.0),
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    statusTimeout(new QTimer(this)),
    #if defined(QGC_PROTOBUF_ENABLED) && defined(QGC_USE_PIXHAWK_MESSAGES)
    receivedOverlayTimestamp(0.0),
    receivedObstacleListTimestamp(0.0),
    receivedPathTimestamp(0.0),
    receivedPointCloudTimestamp(0.0),
    receivedRGBDImageTimestamp(0.0),
    #endif
    paramsOnceRequested(false),
    airframe(QGC_AIRFRAME_GENERIC),
    attitudeKnown(false),
    paramManager(NULL),
    attitudeStamped(false),
    lastAttitude(0),
    simulation(0),
    isLocalPositionKnown(false),
    isGlobalPositionKnown(false),
    systemIsArmed(false),
    nedPosGlobalOffset(0,0,0),
    nedAttGlobalOffset(0,0,0),
    connectionLost(false),
    lastVoltageWarning(0),
    lastNonNullTime(0),
    onboardTimeOffsetInvalidCount(0),
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    hilEnabled(false),
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    sensorHil(false),
    lastSendTimeGPS(0),
    lastSendTimeSensors(0)
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{
    for (unsigned int i = 0; i<255;++i)
    {
        componentID[i] = -1;
        componentMulti[i] = false;
    }
    
    color = UASInterface::getNextColor();
    setBatterySpecs(QString("9V,9.5V,12.6V"));
    connect(statusTimeout, SIGNAL(timeout()), this, SLOT(updateState()));
    connect(this, SIGNAL(systemSpecsChanged(int)), this, SLOT(writeSettings()));
    statusTimeout->start(500);
    readSettings(); 
    type = MAV_TYPE_GENERIC;
    // Initial signals
    emit disarmed();
    emit armingChanged(false);  
}

/**
* Saves the settings of name, airframe, autopilot type and battery specifications
* by calling writeSettings.
*/
UAS::~UAS()
{
    writeSettings();
    delete links;
    delete statusTimeout;
    delete simulation;
}

/**
* Saves the settings of name, airframe, autopilot type and battery specifications
* for the next instantiation of UAS.
*/
void UAS::writeSettings()
{
    QSettings settings;
    settings.beginGroup(QString("MAV%1").arg(uasId));
    settings.setValue("NAME", this->name);
    settings.setValue("AIRFRAME", this->airframe);
    settings.setValue("AP_TYPE", this->autopilot);
    settings.setValue("BATTERY_SPECS", getBatterySpecs());
    settings.endGroup();
    settings.sync();
}

/**
* Reads in the settings: name, airframe, autopilot type, and battery specifications
* for the new UAS.
*/
void UAS::readSettings()
{
    QSettings settings;
    settings.beginGroup(QString("MAV%1").arg(uasId));
    this->name = settings.value("NAME", this->name).toString();
    this->airframe = settings.value("AIRFRAME", this->airframe).toInt();
    this->autopilot = settings.value("AP_TYPE", this->autopilot).toInt();
    if (settings.contains("BATTERY_SPECS"))
    {
        setBatterySpecs(settings.value("BATTERY_SPECS").toString());
    }
    settings.endGroup();
}

/**
*  Deletes the settings origianally read into the UAS by readSettings.
*  This is in case one does not want the old values but would rather 
*  start with the values assigned by the constructor.
*/
void UAS::deleteSettings()
{
    this->name = "";
    this->airframe = QGC_AIRFRAME_GENERIC;
    this->autopilot = -1;
    setBatterySpecs(QString("9V,9.5V,12.6V"));
}

/**
* @ return the id of the uas
*/
int UAS::getUASID() const
{
    return uasId;
}

/**
* Update the heartbeat.
*/
void UAS::updateState()
{
    // Check if heartbeat timed out
    quint64 heartbeatInterval = QGC::groundTimeUsecs() - lastHeartbeat;
    if (!connectionLost && (heartbeatInterval > timeoutIntervalHeartbeat))
    {
        connectionLost = true;
        QString audiostring = QString("Link lost to system %1").arg(this->getUASID());
        GAudioOutput::instance()->say(audiostring.toLower());
    }

    // Update connection loss time on each iteration
    if (connectionLost && (heartbeatInterval > timeoutIntervalHeartbeat))
    {
        connectionLossTime = heartbeatInterval;
        emit heartbeatTimeout(true, heartbeatInterval/1000);
    }

    // Connection gained
    if (connectionLost && (heartbeatInterval < timeoutIntervalHeartbeat))
    {
        QString audiostring = QString("Link regained to system %1 after %2 seconds").arg(this->getUASID()).arg((int)(connectionLossTime/1000000));
        GAudioOutput::instance()->say(audiostring.toLower());
        connectionLost = false;
        connectionLossTime = 0;
        emit heartbeatTimeout(false, 0);
    }

    // Position lock is set by the MAVLink message handler
    // if no position lock is available, indicate an error
    if (positionLock)
    {
        positionLock = false;
    }
    else
    {
        if (((mode&MAV_MODE_FLAG_DECODE_POSITION_AUTO) || (mode&MAV_MODE_FLAG_DECODE_POSITION_GUIDED)) && positionLock)
        {
            GAudioOutput::instance()->notifyNegative();
        }
    }

//#define MAVLINK_OFFBOARD_CONTROL_MODE_NONE 0
//#define MAVLINK_OFFBOARD_CONTROL_MODE_RATES 1
//#define MAVLINK_OFFBOARD_CONTROL_MODE_ATTITUDE 2
//#define MAVLINK_OFFBOARD_CONTROL_MODE_VELOCITY 3
//#define MAVLINK_OFFBOARD_CONTROL_MODE_POSITION 4
//#define MAVLINK_OFFBOARD_CONTROL_FLAG_ARMED 0x10

//#warning THIS IS A HUGE HACK AND SHOULD NEVER SHOW UP IN ANY GIT REPOSITORY
//    mavlink_message_t message;

//            mavlink_set_quad_swarm_roll_pitch_yaw_thrust_t sp;

//            sp.group = 0;

//            /* set rate mode, set zero rates and 20% throttle */
//            sp.mode = MAVLINK_OFFBOARD_CONTROL_MODE_RATES | MAVLINK_OFFBOARD_CONTROL_FLAG_ARMED;

//            sp.roll[0] = INT16_MAX * 0.0f;
//            sp.pitch[0] = INT16_MAX * 0.0f;
//            sp.yaw[0] = INT16_MAX * 0.0f;
//            sp.thrust[0] = UINT16_MAX * 0.3f;


//            /* send from system 200 and component 0 */
//            mavlink_msg_set_quad_swarm_roll_pitch_yaw_thrust_encode(200, 0, &message, &sp);

//            sendMessage(message);
}

/**
* If the acitve UAS (the UAS that was selected) is not the one that is currently
* active, then change the active UAS to the one that was selected.
*/
void UAS::setSelected()
{
    if (UASManager::instance()->getActiveUAS() != this)
    {
        UASManager::instance()->setActiveUAS(this);
        emit systemSelected(true);
    }
}

/**
* @return if the active UAS is the current UAS
**/
bool UAS::getSelected() const
{
    return (UASManager::instance()->getActiveUAS() == this);
}

void UAS::receiveMessage(LinkInterface* link, mavlink_message_t message)
{
    if (!link) return;
    if (!links->contains(link))
    {
        addLink(link);
        //        qDebug() << __FILE__ << __LINE__ << "ADDED LINK!" << link->getName();
    }

    if (!components.contains(message.compid))
    {
        QString componentName;

        switch (message.compid)
        {
        case MAV_COMP_ID_ALL:
        {
            componentName = "ANONYMOUS";
            break;
        }
        case MAV_COMP_ID_IMU:
        {
            componentName = "IMU #1";
            break;
        }
        case MAV_COMP_ID_CAMERA:
        {
            componentName = "CAMERA";
            break;
        }
        case MAV_COMP_ID_MISSIONPLANNER:
        {
            componentName = "MISSIONPLANNER";
            break;
        }
        }

        components.insert(message.compid, componentName);
        emit componentCreated(uasId, message.compid, componentName);
    }

    //    qDebug() << "UAS RECEIVED from" << message.sysid << "component" << message.compid << "msg id" << message.msgid << "seq no" << message.seq;

    // Only accept messages from this system (condition 1)
    // and only then if a) attitudeStamped is disabled OR b) attitudeStamped is enabled
    // and we already got one attitude packet
    if (message.sysid == uasId && (!attitudeStamped || (attitudeStamped && (lastAttitude != 0)) || message.msgid == MAVLINK_MSG_ID_ATTITUDE))
    {
        QString uasState;
        QString stateDescription;

        bool multiComponentSourceDetected = false;
        bool wrongComponent = false;

        switch (message.compid)
        {
        case MAV_COMP_ID_IMU_2:
            // Prefer IMU 2 over IMU 1 (FIXME)
            componentID[message.msgid] = MAV_COMP_ID_IMU_2;
            break;
        default:
            // Do nothing
            break;
        }

        // Store component ID
        if (componentID[message.msgid] == -1)
        {
            // Prefer the first component
            componentID[message.msgid] = message.compid;
        }
        else
        {
            // Got this message already
            if (componentID[message.msgid] != message.compid)
            {
                componentMulti[message.msgid] = true;
                wrongComponent = true;
            }
        }

        if (componentMulti[message.msgid] == true) multiComponentSourceDetected = true;


        switch (message.msgid)
        {
        case MAVLINK_MSG_ID_HEARTBEAT:
        {
            if (multiComponentSourceDetected && wrongComponent)
            {
                break;
            }
            lastHeartbeat = QGC::groundTimeUsecs();
            emit heartbeat(this);
            mavlink_heartbeat_t state;
            mavlink_msg_heartbeat_decode(&message, &state);
			
			// Send the base_mode and system_status values to the plotter. This uses the ground time
			// so the Ground Time checkbox must be ticked for these values to display
            quint64 time = getUnixTime();
			QString name = QString("M%1:HEARTBEAT.%2").arg(message.sysid);
			emit valueChanged(uasId, name.arg("base_mode"), "bits", state.base_mode, time);
			emit valueChanged(uasId, name.arg("custom_mode"), "bits", state.custom_mode, time);
			emit valueChanged(uasId, name.arg("system_status"), "-", state.system_status, time);
			
            // Set new type if it has changed
            if (this->type != state.type)
            {
                this->type = state.type;
                if (airframe == 0)
                {
                    switch (type)
                    {
                    case MAV_TYPE_FIXED_WING:
                        setAirframe(UASInterface::QGC_AIRFRAME_EASYSTAR);
                        break;
                    case MAV_TYPE_QUADROTOR:
                        setAirframe(UASInterface::QGC_AIRFRAME_CHEETAH);
                        break;
                    case MAV_TYPE_HEXAROTOR:
                        setAirframe(UASInterface::QGC_AIRFRAME_HEXCOPTER);
                        break;
                    default:
                        // Do nothing
                        break;
                    }
                }
                this->autopilot = state.autopilot;
                emit systemTypeSet(this, type);
            }

            bool currentlyArmed = state.base_mode & MAV_MODE_FLAG_DECODE_POSITION_SAFETY;

            if (systemIsArmed != currentlyArmed)
            {
                systemIsArmed = currentlyArmed;
                emit armingChanged(systemIsArmed);
                if (systemIsArmed)
                {
                    emit armed();
                }
                else
                {
                    emit disarmed();
                }
            }

            QString audiostring = QString("System %1").arg(uasId);
            QString stateAudio = "";
            QString modeAudio = "";
            QString navModeAudio = "";
            bool statechanged = false;
            bool modechanged = false;

            QString audiomodeText = getAudioModeTextFor(static_cast<int>(state.base_mode));


            if ((state.system_status != this->status) && state.system_status != MAV_STATE_UNINIT)
            {
                statechanged = true;
                this->status = state.system_status;
                getStatusForCode((int)state.system_status, uasState, stateDescription);
                emit statusChanged(this, uasState, stateDescription);
                emit statusChanged(this->status);

                shortStateText = uasState;

                // Adjust for better audio
                if (uasState == QString("STANDBY")) uasState = QString("standing by");
                if (uasState == QString("EMERGENCY")) uasState = QString("emergency condition");
                if (uasState == QString("CRITICAL")) uasState = QString("critical condition");
                if (uasState == QString("SHUTDOWN")) uasState = QString("shutting down");

                stateAudio = uasState;
            }

            if (this->mode != static_cast<int>(state.base_mode))
            {
                modechanged = true;
                this->mode = static_cast<int>(state.base_mode);
                shortModeText = getShortModeTextFor(this->mode);

                emit modeChanged(this->getUASID(), shortModeText, "");

                modeAudio = " is now in " + audiomodeText;
            }

            if (navMode != state.custom_mode)
            {
                emit navModeChanged(uasId, state.custom_mode, getNavModeText(state.custom_mode));
                navMode = state.custom_mode;
                //navModeAudio = tr(" changed nav mode to ") + tr("FIXME");
            }

            // AUDIO
            if (modechanged && statechanged)
            {
                // Output both messages
                audiostring += modeAudio + " and " + stateAudio;
            }
            else if (modechanged || statechanged)
            {
                // Output the one message
                audiostring += modeAudio + stateAudio + navModeAudio;
            }

            if (statechanged && ((int)state.system_status == (int)MAV_STATE_CRITICAL || state.system_status == (int)MAV_STATE_EMERGENCY))
            {
                GAudioOutput::instance()->say(QString("emergency for system %1").arg(this->getUASID()));
                QTimer::singleShot(3000, GAudioOutput::instance(), SLOT(startEmergency()));
            }
            else if (modechanged || statechanged)
            {
                GAudioOutput::instance()->stopEmergency();
                GAudioOutput::instance()->say(audiostring.toLower());
            }
        }

            break;
        case MAVLINK_MSG_ID_SYS_STATUS:
        {
            if (multiComponentSourceDetected && wrongComponent)
            {
                break;
            }
            mavlink_sys_status_t state;
            mavlink_msg_sys_status_decode(&message, &state);

			// Prepare for sending data to the realtime plotter, which is every field excluding onboard_control_sensors_present.
            quint64 time = getUnixTime();
			QString name = QString("M%1:SYS_STATUS.%2").arg(message.sysid);
			emit valueChanged(uasId, name.arg("sensors_enabled"), "bits", state.onboard_control_sensors_enabled, time);
			emit valueChanged(uasId, name.arg("sensors_health"), "bits", state.onboard_control_sensors_health, time);
			emit valueChanged(uasId, name.arg("errors_comm"), "-", state.errors_comm, time);
			emit valueChanged(uasId, name.arg("errors_count1"), "-", state.errors_count1, time);
			emit valueChanged(uasId, name.arg("errors_count2"), "-", state.errors_count2, time);
			emit valueChanged(uasId, name.arg("errors_count3"), "-", state.errors_count3, time);
            emit valueChanged(uasId, name.arg("errors_count4"), "-", state.errors_count4, time);

			// Process CPU load.
            emit loadChanged(this,state.load/10.0f);
			emit valueChanged(uasId, name.arg("load"), "%", state.load/10.0f, time);

			// Battery charge/time remaining/voltage calculations
            currentVoltage = state.voltage_battery/1000.0f;
            lpVoltage = filterVoltage(currentVoltage);
            tickLowpassVoltage = tickLowpassVoltage*0.8f + 0.2f*currentVoltage;


            // We don't want to tick above the threshold
            if (tickLowpassVoltage > tickVoltage)
            {
                lastTickVoltageValue = tickLowpassVoltage;
            }

            if ((startVoltage > 0.0f) && (tickLowpassVoltage < tickVoltage) && (fabs(lastTickVoltageValue - tickLowpassVoltage) > 0.1f)
                    /* warn if lower than treshold */
                    && (lpVoltage < tickVoltage)
                    /* warn only if we have at least the voltage of an empty LiPo cell, else we're sampling something wrong */
                    && (currentVoltage > 3.3f)
                    /* warn only if current voltage is really still lower by a reasonable amount */
                    && ((currentVoltage - 0.2f) < tickVoltage)
                    /* warn only every 12 seconds */
                    && (QGC::groundTimeUsecs() - lastVoltageWarning) > 12000000)
            {
                GAudioOutput::instance()->say(QString("voltage warning: %1 volts").arg(lpVoltage, 0, 'f', 1, QChar(' ')));
                lastVoltageWarning = QGC::groundTimeUsecs();
                lastTickVoltageValue = tickLowpassVoltage;
            }

            if (startVoltage == -1.0f && currentVoltage > 0.1f) startVoltage = currentVoltage;
            timeRemaining = calculateTimeRemaining();
            if (!batteryRemainingEstimateEnabled && chargeLevel != -1)
            {
                chargeLevel = state.battery_remaining;
            }
            emit batteryChanged(this, lpVoltage, getChargeLevel(), timeRemaining);
			emit valueChanged(uasId, name.arg("battery_remaining"), "%", getChargeLevel(), time);
            emit voltageChanged(message.sysid, currentVoltage);
			emit valueChanged(uasId, name.arg("battery_voltage"), "V", currentVoltage, time);

			// And if the battery current draw is measured, log that also.
			if (state.current_battery != -1)
			{
				emit valueChanged(uasId, name.arg("battery_current"), "A", ((double)state.current_battery) / 100.0f, time);
			}

            // LOW BATTERY ALARM
            if (lpVoltage < warnVoltage && (currentVoltage - 0.2f) < warnVoltage && (currentVoltage > 3.3))
            {
                startLowBattAlarm();
            }
            else
            {
                stopLowBattAlarm();
            }

            // control_sensors_enabled:
            // relevant bits: 11: attitude stabilization, 12: yaw position, 13: z/altitude control, 14: x/y position control
            emit attitudeControlEnabled(state.onboard_control_sensors_enabled & (1 << 11));
            emit positionYawControlEnabled(state.onboard_control_sensors_enabled & (1 << 12));
            emit positionZControlEnabled(state.onboard_control_sensors_enabled & (1 << 13));
            emit positionXYControlEnabled(state.onboard_control_sensors_enabled & (1 << 14));

			// Trigger drop rate updates as needed. Here we convert the incoming
			// drop_rate_comm value from 1/100 of a percent in a uint16 to a true
			// percentage as a float. We also cap the incoming value at 100% as defined
			// by the MAVLink specifications.
			if (state.drop_rate_comm > 10000)
			{
				state.drop_rate_comm = 10000;
			}
			emit dropRateChanged(this->getUASID(), state.drop_rate_comm/100.0f);
			emit valueChanged(uasId, name.arg("drop_rate_comm"), "%", state.drop_rate_comm/100.0f, time);
		}
            break;
        case MAVLINK_MSG_ID_ATTITUDE:
        {
            mavlink_attitude_t attitude;
            mavlink_msg_attitude_decode(&message, &attitude);
            quint64 time = getUnixReferenceTime(attitude.time_boot_ms);

            emit attitudeChanged(this, message.compid, QGC::limitAngleToPMPIf(attitude.roll), QGC::limitAngleToPMPIf(attitude.pitch), QGC::limitAngleToPMPIf(attitude.yaw), time);

            if (!wrongComponent)
            {
                lastAttitude = time;
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                //roll = QGC::limitAngleToPMPIf(attitude.roll);
                setRoll(QGC::limitAngleToPMPIf(attitude.roll));
                //pitch = QGC::limitAngleToPMPIf(attitude.pitch);
                setPitch(QGC::limitAngleToPMPIf(attitude.pitch));
                //yaw = QGC::limitAngleToPMPIf(attitude.yaw);
                setYaw(QGC::limitAngleToPMPIf(attitude.yaw));
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                //                // Emit in angles

                //                // Convert yaw angle to compass value
                //                // in 0 - 360 deg range
                //                float compass = (yaw/M_PI)*180.0+360.0f;
                //                if (compass > -10000 && compass < 10000)
                //                {
                //                    while (compass > 360.0f) {
                //                        compass -= 360.0f;
                //                    }
                //                }
                //                else
                //                {
                //                    // Set to 0, since it is an invalid value
                //                    compass = 0.0f;
                //                }

                attitudeKnown = true;
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                emit attitudeChanged(this, getRoll(), getPitch(), getYaw(), time);
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                emit attitudeSpeedChanged(uasId, attitude.rollspeed, attitude.pitchspeed, attitude.yawspeed, time);
            }
        }
            break;
        case MAVLINK_MSG_ID_LOCAL_POSITION_NED_SYSTEM_GLOBAL_OFFSET:
        {
            mavlink_local_position_ned_system_global_offset_t offset;
            mavlink_msg_local_position_ned_system_global_offset_decode(&message, &offset);
            nedPosGlobalOffset.setX(offset.x);
            nedPosGlobalOffset.setY(offset.y);
            nedPosGlobalOffset.setZ(offset.z);
            nedAttGlobalOffset.setX(offset.roll);
            nedAttGlobalOffset.setY(offset.pitch);
            nedAttGlobalOffset.setZ(offset.yaw);
        }
            break;
        case MAVLINK_MSG_ID_HIL_CONTROLS:
        {
            mavlink_hil_controls_t hil;
            mavlink_msg_hil_controls_decode(&message, &hil);
            emit hilControlsChanged(hil.time_usec, hil.roll_ailerons, hil.pitch_elevator, hil.yaw_rudder, hil.throttle, hil.mode, hil.nav_mode);
        }
            break;
        case MAVLINK_MSG_ID_VFR_HUD:
        {
            mavlink_vfr_hud_t hud;
            mavlink_msg_vfr_hud_decode(&message, &hud);
            quint64 time = getUnixTime();
            // Display updated values
            emit thrustChanged(this, hud.throttle/100.0);

            if (!attitudeKnown)
            {
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                //yaw = QGC::limitAngleToPMPId((((double)hud.heading-180.0)/360.0)*M_PI);
                setYaw(QGC::limitAngleToPMPId((((double)hud.heading-180.0)/360.0)*M_PI));
                emit attitudeChanged(this, getRoll(), getPitch(), getYaw(), time);
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            }

            emit altitudeChanged(uasId, hud.alt);
            emit speedChanged(this, hud.airspeed, 0.0f, hud.climb, time);
        }
            break;
        case MAVLINK_MSG_ID_LOCAL_POSITION_NED:
            //std::cerr << std::endl;
            //std::cerr << "Decoded attitude message:" << " roll: " << std::dec << mavlink_msg_attitude_get_roll(message.payload) << " pitch: " << mavlink_msg_attitude_get_pitch(message.payload) << " yaw: " << mavlink_msg_attitude_get_yaw(message.payload) << std::endl;
        {
            mavlink_local_position_ned_t pos;
            mavlink_msg_local_position_ned_decode(&message, &pos);
            quint64 time = getUnixTime(pos.time_boot_ms);

            // Emit position always with component ID
            emit localPositionChanged(this, message.compid, pos.x, pos.y, pos.z, time);


            if (!wrongComponent)
            {
                localX = pos.x;
                localY = pos.y;
                localZ = pos.z;

                // Emit

                emit localPositionChanged(this, pos.x, pos.y, pos.z, time);
                emit speedChanged(this, pos.vx, pos.vy, pos.vz, time);

                // Set internal state
                if (!positionLock) {
                    // If position was not locked before, notify positive
                    GAudioOutput::instance()->notifyPositive();
                }
                positionLock = true;
                isLocalPositionKnown = true;
            }
        }
            break;
        case MAVLINK_MSG_ID_GLOBAL_VISION_POSITION_ESTIMATE:
        {
            mavlink_global_vision_position_estimate_t pos;
            mavlink_msg_global_vision_position_estimate_decode(&message, &pos);
            quint64 time = getUnixTime(pos.usec);
            emit localPositionChanged(this, message.compid, pos.x, pos.y, pos.z, time);
            emit attitudeChanged(this, message.compid, pos.roll, pos.pitch, pos.yaw, time);
        }
            break;
        case MAVLINK_MSG_ID_GLOBAL_POSITION_INT:
            //std::cerr << std::endl;
            //std::cerr << "Decoded attitude message:" << " roll: " << std::dec << mavlink_msg_attitude_get_roll(message.payload) << " pitch: " << mavlink_msg_attitude_get_pitch(message.payload) << " yaw: " << mavlink_msg_attitude_get_yaw(message.payload) << std::endl;
        {
            mavlink_global_position_int_t pos;
            mavlink_msg_global_position_int_decode(&message, &pos);
            quint64 time = getUnixTime();
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            //latitude = pos.lat/(double)1E7;
            setLatitude(pos.lat/(double)1E7);
            //longitude = pos.lon/(double)1E7;
            setLongitude(pos.lon/(double)1E7);
            //altitude = pos.alt/1000.0;
            setAltitude(pos.alt/1000.0);
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            globalEstimatorActive = true;
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            speedX = pos.vx/100.0;
            speedY = pos.vy/100.0;
            speedZ = pos.vz/100.0;
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            emit globalPositionChanged(this, getLatitude(), getLongitude(), getAltitude(), time);
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            emit speedChanged(this, speedX, speedY, speedZ, time);

            // Set internal state
            if (!positionLock)
            {
                // If position was not locked before, notify positive
                GAudioOutput::instance()->notifyPositive();
            }
            positionLock = true;
            isGlobalPositionKnown = true;
            //TODO fix this hack for forwarding of global position for patch antenna tracking
            forwardMessage(message);
        }
            break;
        case MAVLINK_MSG_ID_GPS_RAW_INT:
        {
            mavlink_gps_raw_int_t pos;
            mavlink_msg_gps_raw_int_decode(&message, &pos);

            // SANITY CHECK
            // only accept values in a realistic range
            // quint64 time = getUnixTime(pos.time_usec);
            quint64 time = getUnixTime(pos.time_usec);
            
            emit gpsLocalizationChanged(this, pos.fix_type);
            // TODO: track localization state not only for gps but also for other loc. sources
            int loc_type = pos.fix_type;
            if (loc_type == 1)
            {
                loc_type = 0; 
            }
            emit localizationChanged(this, loc_type);
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            setSatelliteCount(pos.satellites_visible);
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            if (pos.fix_type > 2)
            {
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                latitude_gps = pos.lat/(double)1E7;
                longitude_gps = pos.lon/(double)1E7;
                altitude_gps = pos.alt/1000.0;

                if (!globalEstimatorActive) {
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                    //latitude = latitude_gps;
                    setLatitude(latitude_gps);
                    //longitude = longitude_gps;
                    setLongitude(longitude_gps);
                    //altitude = altitude_gps;
                    setAltitude(altitude_gps);
                    emit globalPositionChanged(this, getLatitude(), getLongitude(), getAltitude(), time);
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                }

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                positionLock = true;
                isGlobalPositionKnown = true;

                // Smaller than threshold and not NaN

                float vel = pos.vel/100.0f;

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                if (!globalEstimatorActive) {
                    if ((vel < 1000000) && !isnan(vel) && !isinf(vel))
                    {
                        emit speedChanged(this, vel, 0.0, 0.0, time);
                    }
                    else
                    {
                        emit textMessageReceived(uasId, message.compid, 255, QString("GCS ERROR: RECEIVED INVALID SPEED OF %1 m/s").arg(vel));
                    }
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                }
            }
        }
            break;
        case MAVLINK_MSG_ID_GPS_STATUS:
        {
            mavlink_gps_status_t pos;
            mavlink_msg_gps_status_decode(&message, &pos);
            for(int i = 0; i < (int)pos.satellites_visible; i++)
            {
                emit gpsSatelliteStatusChanged(uasId, (unsigned char)pos.satellite_prn[i], (unsigned char)pos.satellite_elevation[i], (unsigned char)pos.satellite_azimuth[i], (unsigned char)pos.satellite_snr[i], static_cast<bool>(pos.satellite_used[i]));
            }
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            setSatelliteCount(pos.satellites_visible);
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        }
            break;
        case MAVLINK_MSG_ID_GPS_GLOBAL_ORIGIN:
        {
            mavlink_gps_global_origin_t pos;
            mavlink_msg_gps_global_origin_decode(&message, &pos);
            emit homePositionChanged(uasId, pos.latitude / 10000000.0, pos.longitude / 10000000.0, pos.altitude / 1000.0);
        }
            break;
        case MAVLINK_MSG_ID_RC_CHANNELS_RAW:
        {
            mavlink_rc_channels_raw_t channels;
            mavlink_msg_rc_channels_raw_decode(&message, &channels);
            emit remoteControlRSSIChanged(channels.rssi/255.0f);
            emit remoteControlChannelRawChanged(0, channels.chan1_raw);
            emit remoteControlChannelRawChanged(1, channels.chan2_raw);
            emit remoteControlChannelRawChanged(2, channels.chan3_raw);
            emit remoteControlChannelRawChanged(3, channels.chan4_raw);
            emit remoteControlChannelRawChanged(4, channels.chan5_raw);
            emit remoteControlChannelRawChanged(5, channels.chan6_raw);
            emit remoteControlChannelRawChanged(6, channels.chan7_raw);
            emit remoteControlChannelRawChanged(7, channels.chan8_raw);
        }
            break;
        case MAVLINK_MSG_ID_RC_CHANNELS_SCALED:
        {
            mavlink_rc_channels_scaled_t channels;
            mavlink_msg_rc_channels_scaled_decode(&message, &channels);
            emit remoteControlRSSIChanged(channels.rssi/255.0f);
            emit remoteControlChannelScaledChanged(0, channels.chan1_scaled/10000.0f);
            emit remoteControlChannelScaledChanged(1, channels.chan2_scaled/10000.0f);
            emit remoteControlChannelScaledChanged(2, channels.chan3_scaled/10000.0f);
            emit remoteControlChannelScaledChanged(3, channels.chan4_scaled/10000.0f);
            emit remoteControlChannelScaledChanged(4, channels.chan5_scaled/10000.0f);
            emit remoteControlChannelScaledChanged(5, channels.chan6_scaled/10000.0f);
            emit remoteControlChannelScaledChanged(6, channels.chan7_scaled/10000.0f);
            emit remoteControlChannelScaledChanged(7, channels.chan8_scaled/10000.0f);
        }
            break;
        case MAVLINK_MSG_ID_PARAM_VALUE:
        {
            mavlink_param_value_t value;
            mavlink_msg_param_value_decode(&message, &value);
            QByteArray bytes(value.param_id, MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN);
            // Construct a string stopping at the first NUL (0) character, else copy the whole
            // byte array (max MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN, so safe)
            QString parameterName(bytes);
            int component = message.compid;
            mavlink_param_union_t val;
            val.param_float = value.param_value;
            val.type = value.param_type;

            // Insert component if necessary
            if (!parameters.contains(component))
            {
                parameters.insert(component, new QMap<QString, QVariant>());
            }

            // Insert parameter into registry
            if (parameters.value(component)->contains(parameterName)) parameters.value(component)->remove(parameterName);

            // Insert with correct type
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            // TODO: This is a hack for MAV_AUTOPILOT_ARDUPILOTMEGA until the new version of MAVLink and a fix for their param handling.
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            switch (value.param_type)
            {
            case MAV_PARAM_TYPE_REAL32:
            {
                // Variant
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                QVariant param;
                if (getAutopilotType() == MAV_AUTOPILOT_ARDUPILOTMEGA)
                {
                    param = QVariant(val.param_float);
                }
                else
                {
                    param = QVariant(val.param_float);
                }
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                parameters.value(component)->insert(parameterName, param);
                // Emit change
                emit parameterChanged(uasId, message.compid, parameterName, param);
                emit parameterChanged(uasId, message.compid, value.param_count, value.param_index, parameterName, param);
//                qDebug() << "RECEIVED PARAM:" << param;
            }
                break;
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            case MAV_PARAM_TYPE_UINT8:
            {
                // Variant
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                QVariant param;
                if (getAutopilotType() == MAV_AUTOPILOT_ARDUPILOTMEGA)
                {
                    param = QVariant(QChar((unsigned char)val.param_float));
                }
                else
                {
                    param = QVariant(QChar((unsigned char)val.param_uint8));
                }
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                parameters.value(component)->insert(parameterName, param);
                // Emit change
                emit parameterChanged(uasId, message.compid, parameterName, param);
                emit parameterChanged(uasId, message.compid, value.param_count, value.param_index, parameterName, param);
                //qDebug() << "RECEIVED PARAM:" << param;
            }
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                break;
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            case MAV_PARAM_TYPE_INT8:
            {
                // Variant
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                QVariant param;
                if (getAutopilotType() == MAV_AUTOPILOT_ARDUPILOTMEGA)
                {
                    param = QVariant(QChar((char)val.param_float));
                }
                else
                {
                    param = QVariant(QChar((char)val.param_int8));
                }
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                parameters.value(component)->insert(parameterName, param);
                // Emit change
                emit parameterChanged(uasId, message.compid, parameterName, param);
                emit parameterChanged(uasId, message.compid, value.param_count, value.param_index, parameterName, param);
                //qDebug() << "RECEIVED PARAM:" << param;
            }
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                break;
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            case MAV_PARAM_TYPE_INT16:
            {
                // Variant
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                QVariant param;
                if (getAutopilotType() == MAV_AUTOPILOT_ARDUPILOTMEGA)
                {
                    param = QVariant((short)val.param_float);
                }
                else
                {
                    param = QVariant(val.param_int16);
                }
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                parameters.value(component)->insert(parameterName, param);
                // Emit change
                emit parameterChanged(uasId, message.compid, parameterName, param);
                emit parameterChanged(uasId, message.compid, value.param_count, value.param_index, parameterName, param);
                //qDebug() << "RECEIVED PARAM:" << param;
            }
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                break;
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            case MAV_PARAM_TYPE_UINT32:
            {
                // Variant
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                QVariant param;
                if (getAutopilotType() == MAV_AUTOPILOT_ARDUPILOTMEGA)
                {
                    param = QVariant((unsigned int)val.param_float);
                }
                else
                {
                    param = QVariant(val.param_uint32);
                }
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                parameters.value(component)->insert(parameterName, param);
                // Emit change
                emit parameterChanged(uasId, message.compid, parameterName, param);
                emit parameterChanged(uasId, message.compid, value.param_count, value.param_index, parameterName, param);
            }
                break;
            case MAV_PARAM_TYPE_INT32:
            {
                // Variant
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                QVariant param;
                if (getAutopilotType() == MAV_AUTOPILOT_ARDUPILOTMEGA)
                {
                    param = QVariant((int)val.param_float);
                }
                else
                {
                    param = QVariant(val.param_int32);
                }
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                parameters.value(component)->insert(parameterName, param);
                // Emit change
                emit parameterChanged(uasId, message.compid, parameterName, param);
                emit parameterChanged(uasId, message.compid, value.param_count, value.param_index, parameterName, param);
//                qDebug() << "RECEIVED PARAM:" << param;
            }
                break;
            default:
                qCritical() << "INVALID DATA TYPE USED AS PARAMETER VALUE: " << value.param_type;
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            } //switch (value.param_type)
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        }
            break;
        case MAVLINK_MSG_ID_COMMAND_ACK:
        {
            mavlink_command_ack_t ack;
            mavlink_msg_command_ack_decode(&message, &ack);
            switch (ack.result)
            {
            case MAV_RESULT_ACCEPTED:
            {
                emit textMessageReceived(uasId, message.compid, 0, tr("SUCCESS: Executed CMD: %1").arg(ack.command));
            }
                break;
            case MAV_RESULT_TEMPORARILY_REJECTED:
            {
                emit textMessageReceived(uasId, message.compid, 0, tr("FAILURE: Temporarily rejected CMD: %1").arg(ack.command));
            }
                break;
            case MAV_RESULT_DENIED:
            {
                emit textMessageReceived(uasId, message.compid, 0, tr("FAILURE: Denied CMD: %1").arg(ack.command));
            }
                break;
            case MAV_RESULT_UNSUPPORTED:
            {
                emit textMessageReceived(uasId, message.compid, 0, tr("FAILURE: Unsupported CMD: %1").arg(ack.command));
            }
                break;
            case MAV_RESULT_FAILED:
            {
                emit textMessageReceived(uasId, message.compid, 0, tr("FAILURE: Failed CMD: %1").arg(ack.command));
            }
                break;
            }
        }
        case MAVLINK_MSG_ID_ROLL_PITCH_YAW_THRUST_SETPOINT:
        {
            mavlink_roll_pitch_yaw_thrust_setpoint_t out;
            mavlink_msg_roll_pitch_yaw_thrust_setpoint_decode(&message, &out);
            quint64 time = getUnixTimeFromMs(out.time_boot_ms);
            emit attitudeThrustSetPointChanged(this, out.roll, out.pitch, out.yaw, out.thrust, time);
        }
            break;
        case MAVLINK_MSG_ID_MISSION_COUNT:
        {
            mavlink_mission_count_t wpc;
            mavlink_msg_mission_count_decode(&message, &wpc);
            if(wpc.target_system == mavlink->getSystemId() || wpc.target_system == 0)
            {
                waypointManager.handleWaypointCount(message.sysid, message.compid, wpc.count);
            }
            else
            {
                qDebug() << "Got waypoint message, but was wrong system id" << wpc.target_system;
            }
        }
            break;

        case MAVLINK_MSG_ID_MISSION_ITEM:
        {
            mavlink_mission_item_t wp;
            mavlink_msg_mission_item_decode(&message, &wp);
            //qDebug() << "got waypoint (" << wp.seq << ") from ID " << message.sysid << " x=" << wp.x << " y=" << wp.y << " z=" << wp.z;
            if(wp.target_system == mavlink->getSystemId() || wp.target_system == 0)
            {
                waypointManager.handleWaypoint(message.sysid, message.compid, &wp);
            }
            else
            {
                qDebug() << "Got waypoint message, but was wrong system id" << wp.target_system;
            }
        }
            break;

        case MAVLINK_MSG_ID_MISSION_ACK:
        {
            mavlink_mission_ack_t wpa;
            mavlink_msg_mission_ack_decode(&message, &wpa);
            if((wpa.target_system == mavlink->getSystemId() || wpa.target_system == 0) &&
                    (wpa.target_component == mavlink->getComponentId() || wpa.target_component == 0))
            {
                waypointManager.handleWaypointAck(message.sysid, message.compid, &wpa);
            }
        }
            break;

        case MAVLINK_MSG_ID_MISSION_REQUEST:
        {
            mavlink_mission_request_t wpr;
            mavlink_msg_mission_request_decode(&message, &wpr);
            if(wpr.target_system == mavlink->getSystemId() || wpr.target_system == 0)
            {
                waypointManager.handleWaypointRequest(message.sysid, message.compid, &wpr);
            }
            else
            {
                qDebug() << "Got waypoint message, but was wrong system id" << wpr.target_system;
            }
        }
            break;

        case MAVLINK_MSG_ID_MISSION_ITEM_REACHED:
        {
            mavlink_mission_item_reached_t wpr;
            mavlink_msg_mission_item_reached_decode(&message, &wpr);
            waypointManager.handleWaypointReached(message.sysid, message.compid, &wpr);
            QString text = QString("System %1 reached waypoint %2").arg(getUASName()).arg(wpr.seq);
            GAudioOutput::instance()->say(text);
            emit textMessageReceived(message.sysid, message.compid, 0, text);
        }
            break;

        case MAVLINK_MSG_ID_MISSION_CURRENT:
        {
            mavlink_mission_current_t wpc;
            mavlink_msg_mission_current_decode(&message, &wpc);
            waypointManager.handleWaypointCurrent(message.sysid, message.compid, &wpc);
        }
            break;

        case MAVLINK_MSG_ID_LOCAL_POSITION_SETPOINT:
        {
            if (multiComponentSourceDetected && wrongComponent)
            {
                break;
            }
            mavlink_local_position_setpoint_t p;
            mavlink_msg_local_position_setpoint_decode(&message, &p);
            emit positionSetPointsChanged(uasId, p.x, p.y, p.z, p.yaw, QGC::groundTimeUsecs());
        }
            break;
        case MAVLINK_MSG_ID_SET_LOCAL_POSITION_SETPOINT:
        {
            mavlink_set_local_position_setpoint_t p;
            mavlink_msg_set_local_position_setpoint_decode(&message, &p);
            emit userPositionSetPointsChanged(uasId, p.x, p.y, p.z, p.yaw);
        }
            break;
        case MAVLINK_MSG_ID_STATUSTEXT:
        {
            QByteArray b;
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            b.resize(MAVLINK_MSG_STATUSTEXT_FIELD_TEXT_LEN+1);
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            mavlink_msg_statustext_get_text(&message, b.data());
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            // Ensure NUL-termination
            b[b.length()-1] = '\0';
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            QString text = QString(b);
            int severity = mavlink_msg_statustext_get_severity(&message);

            if (text.startsWith("#audio:"))
            {
                text.remove("#audio:");
                emit textMessageReceived(uasId, message.compid, severity, QString("Audio message: ") + text);
                GAudioOutput::instance()->say(text, severity);
            }
            else
            {
                emit textMessageReceived(uasId, message.compid, severity, text);
            }
        }
            break;
        case MAVLINK_MSG_ID_SERVO_OUTPUT_RAW:
        {
            mavlink_servo_output_raw_t raw;
            mavlink_msg_servo_output_raw_decode(&message, &raw);

            if (hilEnabled)
            {
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                emit hilActuatorsChanged(static_cast<uint64_t>(getUnixTimeFromMs(raw.time_usec)), static_cast<float>(raw.servo1_raw),
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                                     static_cast<float>(raw.servo2_raw), static_cast<float>(raw.servo3_raw),
                                     static_cast<float>(raw.servo4_raw), static_cast<float>(raw.servo5_raw), static_cast<float>(raw.servo6_raw),
                                     static_cast<float>(raw.servo7_raw), static_cast<float>(raw.servo8_raw));
            }
        }
        break;
#ifdef MAVLINK_ENABLED_PIXHAWK
        case MAVLINK_MSG_ID_DATA_TRANSMISSION_HANDSHAKE:
        {
            mavlink_data_transmission_handshake_t p;
            mavlink_msg_data_transmission_handshake_decode(&message, &p);
            imageSize = p.size;
            imagePackets = p.packets;
            imagePayload = p.payload;
            imageQuality = p.jpg_quality;
            imageType = p.type;
            imageWidth = p.width;
            imageHeight = p.height;
            imageStart = QGC::groundTimeMilliseconds();
1197 1198
            imagePacketsArrived = 0;

1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345
        }
            break;

        case MAVLINK_MSG_ID_ENCAPSULATED_DATA:
        {
            mavlink_encapsulated_data_t img;
            mavlink_msg_encapsulated_data_decode(&message, &img);
            int seq = img.seqnr;
            int pos = seq * imagePayload;

            // Check if we have a valid transaction
            if (imagePackets == 0)
            {
                // NO VALID TRANSACTION - ABORT
                // Restart statemachine
                imagePacketsArrived = 0;
            }

            for (int i = 0; i < imagePayload; ++i)
            {
                if (pos <= imageSize) {
                    imageRecBuffer[pos] = img.data[i];
                }
                ++pos;
            }

            ++imagePacketsArrived;

            // emit signal if all packets arrived
            if ((imagePacketsArrived >= imagePackets))
            {
                // Restart statemachine
                emit imageReady(this);
                //qDebug() << "imageReady emitted. all packets arrived";
            }
        }
            break;



#endif
            //        case MAVLINK_MSG_ID_OBJECT_DETECTION_EVENT:
            //        {
            //            mavlink_object_detection_event_t event;
            //            mavlink_msg_object_detection_event_decode(&message, &event);
            //            QString str(event.name);
            //            emit objectDetected(event.time, event.object_id, event.type, str, event.quality, event.bearing, event.distance);
            //        }
            //        break;
            // WILL BE ENABLED ONCE MESSAGE IS IN COMMON MESSAGE SET
            //        case MAVLINK_MSG_ID_MEMORY_VECT:
            //        {
            //            mavlink_memory_vect_t vect;
            //            mavlink_msg_memory_vect_decode(&message, &vect);
            //            QString str("mem_%1");
            //            quint64 time = getUnixTime(0);
            //            int16_t *mem0 = (int16_t *)&vect.value[0];
            //            uint16_t *mem1 = (uint16_t *)&vect.value[0];
            //            int32_t *mem2 = (int32_t *)&vect.value[0];
            //            // uint32_t *mem3 = (uint32_t *)&vect.value[0]; causes overload problem
            //            float *mem4 = (float *)&vect.value[0];
            //            if ( vect.ver == 0) vect.type = 0, vect.ver = 1; else ;
            //            if ( vect.ver == 1)
            //            {
            //                switch (vect.type) {
            //                default:
            //                case 0:
            //                    for (int i = 0; i < 16; i++)
            //                        // FIXME REMOVE LATER emit valueChanged(uasId, str.arg(vect.address+(i*2)), "i16", mem0[i], time);
            //                    break;
            //                case 1:
            //                    for (int i = 0; i < 16; i++)
            //                        // FIXME REMOVE LATER emit valueChanged(uasId, str.arg(vect.address+(i*2)), "ui16", mem1[i], time);
            //                    break;
            //                case 2:
            //                    for (int i = 0; i < 16; i++)
            //                        // FIXME REMOVE LATER emit valueChanged(uasId, str.arg(vect.address+(i*2)), "Q15", (float)mem0[i]/32767.0, time);
            //                    break;
            //                case 3:
            //                    for (int i = 0; i < 16; i++)
            //                        // FIXME REMOVE LATER emit valueChanged(uasId, str.arg(vect.address+(i*2)), "1Q14", (float)mem0[i]/16383.0, time);
            //                    break;
            //                case 4:
            //                    for (int i = 0; i < 8; i++)
            //                        // FIXME REMOVE LATER emit valueChanged(uasId, str.arg(vect.address+(i*4)), "i32", mem2[i], time);
            //                    break;
            //                case 5:
            //                    for (int i = 0; i < 8; i++)
            //                        // FIXME REMOVE LATER emit valueChanged(uasId, str.arg(vect.address+(i*4)), "i32", mem2[i], time);
            //                    break;
            //                case 6:
            //                    for (int i = 0; i < 8; i++)
            //                        // FIXME REMOVE LATER emit valueChanged(uasId, str.arg(vect.address+(i*4)), "float", mem4[i], time);
            //                    break;
            //                }
            //            }
            //        }
            //        break;
#ifdef MAVLINK_ENABLED_UALBERTA
        case MAVLINK_MSG_ID_NAV_FILTER_BIAS:
        {
            mavlink_nav_filter_bias_t bias;
            mavlink_msg_nav_filter_bias_decode(&message, &bias);
            quint64 time = getUnixTime();
            // FIXME REMOVE LATER emit valueChanged(uasId, "b_f[0]", "raw", bias.accel_0, time);
            // FIXME REMOVE LATER emit valueChanged(uasId, "b_f[1]", "raw", bias.accel_1, time);
            // FIXME REMOVE LATER emit valueChanged(uasId, "b_f[2]", "raw", bias.accel_2, time);
            // FIXME REMOVE LATER emit valueChanged(uasId, "b_w[0]", "raw", bias.gyro_0, time);
            // FIXME REMOVE LATER emit valueChanged(uasId, "b_w[1]", "raw", bias.gyro_1, time);
            // FIXME REMOVE LATER emit valueChanged(uasId, "b_w[2]", "raw", bias.gyro_2, time);
        }
            break;
        case MAVLINK_MSG_ID_RADIO_CALIBRATION:
        {
            mavlink_radio_calibration_t radioMsg;
            mavlink_msg_radio_calibration_decode(&message, &radioMsg);
            QVector<uint16_t> aileron;
            QVector<uint16_t> elevator;
            QVector<uint16_t> rudder;
            QVector<uint16_t> gyro;
            QVector<uint16_t> pitch;
            QVector<uint16_t> throttle;

            for (int i=0; i<MAVLINK_MSG_RADIO_CALIBRATION_FIELD_AILERON_LEN; ++i)
                aileron << radioMsg.aileron[i];
            for (int i=0; i<MAVLINK_MSG_RADIO_CALIBRATION_FIELD_ELEVATOR_LEN; ++i)
                elevator << radioMsg.elevator[i];
            for (int i=0; i<MAVLINK_MSG_RADIO_CALIBRATION_FIELD_RUDDER_LEN; ++i)
                rudder << radioMsg.rudder[i];
            for (int i=0; i<MAVLINK_MSG_RADIO_CALIBRATION_FIELD_GYRO_LEN; ++i)
                gyro << radioMsg.gyro[i];
            for (int i=0; i<MAVLINK_MSG_RADIO_CALIBRATION_FIELD_PITCH_LEN; ++i)
                pitch << radioMsg.pitch[i];
            for (int i=0; i<MAVLINK_MSG_RADIO_CALIBRATION_FIELD_THROTTLE_LEN; ++i)
                throttle << radioMsg.throttle[i];

            QPointer<RadioCalibrationData> radioData = new RadioCalibrationData(aileron, elevator, rudder, gyro, pitch, throttle);
            emit radioCalibrationReceived(radioData);
            delete radioData;
        }
            break;

#endif
            // Messages to ignore
        case MAVLINK_MSG_ID_RAW_IMU:
        case MAVLINK_MSG_ID_SCALED_IMU:
        case MAVLINK_MSG_ID_NAV_CONTROLLER_OUTPUT:
1346 1347 1348 1349 1350 1351 1352 1353 1354
        {
            //mavlink_set_local_position_setpoint_t p;
            //mavlink_msg_set_local_position_setpoint_decode(&message, &p);
            //emit userPositionSetPointsChanged(uasId, p.x, p.y, p.z, p.yaw);
            mavlink_nav_controller_output_t p;
            mavlink_msg_nav_controller_output_decode(&message,&p);
            setDistToWaypoint(p.wp_dist);
        }
            break;
1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786
        case MAVLINK_MSG_ID_RAW_PRESSURE:
        case MAVLINK_MSG_ID_SCALED_PRESSURE:
        case MAVLINK_MSG_ID_OPTICAL_FLOW:
        case MAVLINK_MSG_ID_DEBUG_VECT:
        case MAVLINK_MSG_ID_DEBUG:
        case MAVLINK_MSG_ID_NAMED_VALUE_FLOAT:
        case MAVLINK_MSG_ID_NAMED_VALUE_INT:
        case MAVLINK_MSG_ID_MANUAL_CONTROL:
        case MAVLINK_MSG_ID_HIGHRES_IMU:
            break;
        default:
        {
            if (!unknownPackets.contains(message.msgid))
            {
                unknownPackets.append(message.msgid);
                QString errString = tr("UNABLE TO DECODE MESSAGE NUMBER %1").arg(message.msgid);
                //GAudioOutput::instance()->say(errString+tr(", please check console for details."));
                emit textMessageReceived(uasId, message.compid, 255, errString);
                std::cout << "Unable to decode message from system " << std::dec << static_cast<int>(message.sysid) << " with message id:" << static_cast<int>(message.msgid) << std::endl;
                //qDebug() << std::cerr << "Unable to decode message from system " << std::dec << static_cast<int>(message.acid) << " with message id:" << static_cast<int>(message.msgid) << std::endl;
            }
        }
            break;
        }
    }
}


#if defined(QGC_PROTOBUF_ENABLED)
/**
* Receive an extended message.
* @param link
* @param message
*/
void UAS::receiveExtendedMessage(LinkInterface* link, std::tr1::shared_ptr<google::protobuf::Message> message)
{
    if (!link)
    {
        return;
    }
    if (!links->contains(link))
    {
        addLink(link);
    }

    const google::protobuf::Descriptor* descriptor = message->GetDescriptor();
    if (!descriptor)
    {
        return;
    }

    const google::protobuf::FieldDescriptor* headerField = descriptor->FindFieldByName("header");
    if (!headerField)
    {
        return;
    }

    const google::protobuf::Descriptor* headerDescriptor = headerField->message_type();
    if (!headerDescriptor)
    {
        return;
    }

    const google::protobuf::FieldDescriptor* sourceSysIdField = headerDescriptor->FindFieldByName("source_sysid");
    if (!sourceSysIdField)
    {
        return;
    }

    const google::protobuf::Reflection* reflection = message->GetReflection();
    const google::protobuf::Message& headerMsg = reflection->GetMessage(*message, headerField);
    const google::protobuf::Reflection* headerReflection = headerMsg.GetReflection();

    int source_sysid = headerReflection->GetInt32(headerMsg, sourceSysIdField);

    if (source_sysid != uasId)
    {
        return;
    }

#ifdef QGC_USE_PIXHAWK_MESSAGES
    if (message->GetTypeName() == overlay.GetTypeName())
    {
        receivedOverlayTimestamp = QGC::groundTimeSeconds();
        overlayMutex.lock();
        overlay.CopyFrom(*message);
        overlayMutex.unlock();
        emit overlayChanged(this);
    }
    else if (message->GetTypeName() == obstacleList.GetTypeName())
    {
        receivedObstacleListTimestamp = QGC::groundTimeSeconds();
        obstacleListMutex.lock();
        obstacleList.CopyFrom(*message);
        obstacleListMutex.unlock();
        emit obstacleListChanged(this);
    }
    else if (message->GetTypeName() == path.GetTypeName())
    {
        receivedPathTimestamp = QGC::groundTimeSeconds();
        pathMutex.lock();
        path.CopyFrom(*message);
        pathMutex.unlock();
        emit pathChanged(this);
    }
    else if (message->GetTypeName() == pointCloud.GetTypeName())
    {
        receivedPointCloudTimestamp = QGC::groundTimeSeconds();
        pointCloudMutex.lock();
        pointCloud.CopyFrom(*message);
        pointCloudMutex.unlock();
        emit pointCloudChanged(this);
    }
    else if (message->GetTypeName() == rgbdImage.GetTypeName())
    {
        receivedRGBDImageTimestamp = QGC::groundTimeSeconds();
        rgbdImageMutex.lock();
        rgbdImage.CopyFrom(*message);
        rgbdImageMutex.unlock();
        emit rgbdImageChanged(this);
    }
#endif
}

#endif

/**
* Set the home position of the UAS.
* @param lat The latitude fo the home position
* @param lon The longitute of the home position
* @param alt The altitude of the home position
*/
void UAS::setHomePosition(double lat, double lon, double alt)
{
    QMessageBox msgBox;
    msgBox.setIcon(QMessageBox::Warning);
    msgBox.setText("Setting new World Coordinate Frame Origin");
    msgBox.setInformativeText("Do you want to set a new origin? Waypoints defined in the local frame will be shifted in their physical location");
    msgBox.setStandardButtons(QMessageBox::Yes | QMessageBox::Cancel);
    msgBox.setDefaultButton(QMessageBox::Cancel);
    int ret = msgBox.exec();

    // Close the message box shortly after the click to prevent accidental clicks
    QTimer::singleShot(5000, &msgBox, SLOT(reject()));


    if (ret == QMessageBox::Yes)
    {
        mavlink_message_t msg;
        mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, this->getUASID(), 0, MAV_CMD_DO_SET_HOME, 1, 0, 0, 0, 0, lat, lon, alt);
        // Send message twice to increase chance that it reaches its goal
        sendMessage(msg);

        // Send new home position to UAS
        mavlink_set_gps_global_origin_t home;
        home.target_system = uasId;
        home.latitude = lat*1E7;
        home.longitude = lon*1E7;
        home.altitude = alt*1000;
        qDebug() << "lat:" << home.latitude << " lon:" << home.longitude;
        mavlink_msg_set_gps_global_origin_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &home);
        sendMessage(msg);
    }
}

/**
* Set the origin to the current GPS location.
**/
void UAS::setLocalOriginAtCurrentGPSPosition()
{
    QMessageBox msgBox;
    msgBox.setIcon(QMessageBox::Warning);
    msgBox.setText("Setting new World Coordinate Frame Origin");
    msgBox.setInformativeText("Do you want to set a new origin? Waypoints defined in the local frame will be shifted in their physical location");
    msgBox.setStandardButtons(QMessageBox::Yes | QMessageBox::Cancel);
    msgBox.setDefaultButton(QMessageBox::Cancel);
    int ret = msgBox.exec();

    // Close the message box shortly after the click to prevent accidental clicks
    QTimer::singleShot(5000, &msgBox, SLOT(reject()));


    if (ret == QMessageBox::Yes)
    {
        mavlink_message_t msg;
        mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, this->getUASID(), 0, MAV_CMD_DO_SET_HOME, 1, 1, 0, 0, 0, 0, 0, 0);
        // Send message twice to increase chance that it reaches its goal
        sendMessage(msg);
    }
}

/**
* Set a local position setpoint.
* @param x postion
* @param y position
* @param z position
*/ 
void UAS::setLocalPositionSetpoint(float x, float y, float z, float yaw)
{
#ifdef MAVLINK_ENABLED_PIXHAWK
    mavlink_message_t msg;
    mavlink_msg_set_local_position_setpoint_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, 0, MAV_FRAME_LOCAL_NED, x, y, z, yaw/M_PI*180.0);
    sendMessage(msg);
#else
    Q_UNUSED(x);
    Q_UNUSED(y);
    Q_UNUSED(z);
    Q_UNUSED(yaw);
#endif
}

/**
* Set a offset of the local position.
* @param x position
* @param y position
* @param z position
* @param yaw 
*/
void UAS::setLocalPositionOffset(float x, float y, float z, float yaw)
{
#ifdef MAVLINK_ENABLED_PIXHAWK
    mavlink_message_t msg;
    mavlink_msg_set_position_control_offset_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, 0, x, y, z, yaw);
    sendMessage(msg);
#else
    Q_UNUSED(x);
    Q_UNUSED(y);
    Q_UNUSED(z);
    Q_UNUSED(yaw);
#endif
}

void UAS::startRadioControlCalibration()
{
    mavlink_message_t msg;
    // Param 1: gyro cal, param 2: mag cal, param 3: pressure cal, Param 4: radio
    mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, MAV_COMP_ID_IMU, MAV_CMD_PREFLIGHT_CALIBRATION, 1, 0, 0, 0, 1, 0, 0, 0);
    sendMessage(msg);
}

void UAS::startDataRecording()
{
    mavlink_message_t msg;
    mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, 0, MAV_CMD_DO_CONTROL_VIDEO, 1, -1, -1, -1, 2, 0, 0, 0);
    sendMessage(msg);
}

void UAS::stopDataRecording()
{
    mavlink_message_t msg;
    mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, 0, MAV_CMD_DO_CONTROL_VIDEO, 1, -1, -1, -1, 0, 0, 0, 0);
    sendMessage(msg);
}

void UAS::startMagnetometerCalibration()
{
    mavlink_message_t msg;
    // Param 1: gyro cal, param 2: mag cal, param 3: pressure cal, Param 4: radio
    mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, MAV_COMP_ID_IMU, MAV_CMD_PREFLIGHT_CALIBRATION, 1, 0, 1, 0, 0, 0, 0, 0);
    sendMessage(msg);
}

void UAS::startGyroscopeCalibration()
{
    mavlink_message_t msg;
    // Param 1: gyro cal, param 2: mag cal, param 3: pressure cal, Param 4: radio
    mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, MAV_COMP_ID_IMU, MAV_CMD_PREFLIGHT_CALIBRATION, 1, 1, 0, 0, 0, 0, 0, 0);
    sendMessage(msg);
}

void UAS::startPressureCalibration()
{
    mavlink_message_t msg;
    // Param 1: gyro cal, param 2: mag cal, param 3: pressure cal, Param 4: radio
    mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, MAV_COMP_ID_IMU, MAV_CMD_PREFLIGHT_CALIBRATION, 1, 0, 0, 1, 0, 0, 0, 0);
    sendMessage(msg);
}

/** 
* Check if time is smaller than 40 years, assuming no system without Unix 
* timestamp runs longer than 40 years continuously without reboot. In worst case
* this will add/subtract the communication delay between GCS and MAV, it will
* never alter the timestamp in a safety critical way.
*/
quint64 UAS::getUnixReferenceTime(quint64 time)
{
    // Same as getUnixTime, but does not react to attitudeStamped mode
    if (time == 0)
    {
        //        qDebug() << "XNEW time:" <<QGC::groundTimeMilliseconds();
        return QGC::groundTimeMilliseconds();
    }
    // Check if time is smaller than 40 years,
    // assuming no system without Unix timestamp
    // runs longer than 40 years continuously without
    // reboot. In worst case this will add/subtract the
    // communication delay between GCS and MAV,
    // it will never alter the timestamp in a safety
    // critical way.
    //
    // Calculation:
    // 40 years
    // 365 days
    // 24 hours
    // 60 minutes
    // 60 seconds
    // 1000 milliseconds
    // 1000 microseconds
#ifndef _MSC_VER
    else if (time < 1261440000000000LLU)
#else
    else if (time < 1261440000000000)
#endif
    {
        //        qDebug() << "GEN time:" << time/1000 + onboardTimeOffset;
        if (onboardTimeOffset == 0)
        {
            onboardTimeOffset = QGC::groundTimeMilliseconds() - time/1000;
        }
        return time/1000 + onboardTimeOffset;
    }
    else
    {
        // Time is not zero and larger than 40 years -> has to be
        // a Unix epoch timestamp. Do nothing.
        return time/1000;
    }
}

/**
* @warning If attitudeStamped is enabled, this function will not actually return
* the precise time stamp of this measurement augmented to UNIX time, but will 
* MOVE the timestamp IN TIME to match the last measured attitude. There is no
* reason why one would want this, except for system setups where the onboard 
* clock is not present or broken and datasets should be collected that are still
* roughly synchronized. PLEASE NOTE THAT ENABLING ATTITUDE STAMPED RUINS THE 
* SCIENTIFIC NATURE OF THE CORRECT LOGGING FUNCTIONS OF QGROUNDCONTROL!
*/
quint64 UAS::getUnixTimeFromMs(quint64 time)
{
    return getUnixTime(time*1000);
}

/**
* @warning If attitudeStamped is enabled, this function will not actually return
* the precise time stam of this measurement augmented to UNIX time, but will 
* MOVE the timestamp IN TIME to match the last measured attitude. There is no 
* reason why one would want this, except for system setups where the onboard 
* clock is not present or broken and datasets should be collected that are 
* still roughly synchronized. PLEASE NOTE THAT ENABLING ATTITUDE STAMPED
* RUINS THE SCIENTIFIC NATURE OF THE CORRECT LOGGING FUNCTIONS OF QGROUNDCONTROL!
*/
quint64 UAS::getUnixTime(quint64 time)
{
    quint64 ret = 0;
    if (attitudeStamped)
    {
        ret = lastAttitude;
    }

    if (time == 0)
    {
        ret = QGC::groundTimeMilliseconds();
    }
    // Check if time is smaller than 40 years,
    // assuming no system without Unix timestamp
    // runs longer than 40 years continuously without
    // reboot. In worst case this will add/subtract the
    // communication delay between GCS and MAV,
    // it will never alter the timestamp in a safety
    // critical way.
    //
    // Calculation:
    // 40 years
    // 365 days
    // 24 hours
    // 60 minutes
    // 60 seconds
    // 1000 milliseconds
    // 1000 microseconds
#ifndef _MSC_VER
    else if (time < 1261440000000000LLU)
#else
    else if (time < 1261440000000000)
#endif
    {
        //        qDebug() << "GEN time:" << time/1000 + onboardTimeOffset;
        if (onboardTimeOffset == 0 || time < (lastNonNullTime - 100))
        {
            lastNonNullTime = time;
            onboardTimeOffset = QGC::groundTimeMilliseconds() - time/1000;
        }
        if (time > lastNonNullTime) lastNonNullTime = time;

        ret = time/1000 + onboardTimeOffset;
    }
    else
    {
        // Time is not zero and larger than 40 years -> has to be
        // a Unix epoch timestamp. Do nothing.
        ret = time/1000;
    }

    return ret;
}

/**
* @param component that will be searched for in the map of parameters.
*/
QList<QString> UAS::getParameterNames(int component)
{
    if (parameters.contains(component))
    {
        return parameters.value(component)->keys();
    }
    else
    {
        return QList<QString>();
    }
}

QList<int> UAS::getComponentIds()
{
    return parameters.keys();
}

/**
* @param mode that UAS is to be set to.
*/
void UAS::setMode(int mode)
{
    //this->mode = mode; //no call assignament, update receive message from UAS
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    // Strip armed / disarmed call, this is not relevant for setting the mode
    uint8_t newMode = mode;
    newMode &= (~(uint8_t)MAV_MODE_FLAG_SAFETY_ARMED);
    // Now set current state (request no change)
    newMode |= (uint8_t)(this->mode) & (uint8_t)(MAV_MODE_FLAG_SAFETY_ARMED);

    // Strip HIL part, replace it with current system state
    newMode &= (~(uint8_t)MAV_MODE_FLAG_HIL_ENABLED);
    // Now set current state (request no change)
    newMode |= (uint8_t)(this->mode) & (uint8_t)(MAV_MODE_FLAG_HIL_ENABLED);

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    mavlink_message_t msg;
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    mavlink_msg_set_mode_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, (uint8_t)uasId, newMode, (uint16_t)navMode);
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    sendMessage(msg);
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    qDebug() << "SENDING REQUEST TO SET MODE TO SYSTEM" << uasId << ", REQUEST TO SET MODE " << newMode;
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}

/**
* Send a message to every link that is connected.
* @param message that is to be sent
*/
void UAS::sendMessage(mavlink_message_t message)
{
    if (!LinkManager::instance()) return;
    // Emit message on all links that are currently connected
    foreach (LinkInterface* link, *links)
    {
        if (LinkManager::instance()->getLinks().contains(link))
        {
            sendMessage(link, message);
        }
        else
        {
            // Remove from list
            links->removeAt(links->indexOf(link));
        }
    }
}

/**
* Forward a message to all links that are currently connected.
* @param message that is to be forwarded
*/
void UAS::forwardMessage(mavlink_message_t message)
{
    // Emit message on all links that are currently connected
    QList<LinkInterface*>link_list = LinkManager::instance()->getLinksForProtocol(mavlink);

    foreach(LinkInterface* link, link_list)
    {
        if (link)
        {
            SerialLink* serial = dynamic_cast<SerialLink*>(link);
            if(serial != 0)
            {
                for(int i=0; i<links->size(); i++)
                {
                    if(serial != links->at(i))
                    {
                        qDebug()<<"Antenna tracking: Forwarding Over link: "<<serial->getName()<<" "<<serial;
                        sendMessage(serial, message);
                    }
                }
            }
        }
    }
}

/**
* Send a message to the link that is connected.
* @param link that the message will be sent to
* @message that is to be sent
*/
void UAS::sendMessage(LinkInterface* link, mavlink_message_t message)
{
    if(!link) return;
    // Create buffer
    uint8_t buffer[MAVLINK_MAX_PACKET_LEN];
    // Write message into buffer, prepending start sign
    int len = mavlink_msg_to_send_buffer(buffer, &message);
    static uint8_t messageKeys[256] = MAVLINK_MESSAGE_CRCS;
    mavlink_finalize_message_chan(&message, mavlink->getSystemId(), mavlink->getComponentId(), link->getId(), message.len, messageKeys[message.msgid]);
    // If link is connected
    if (link->isConnected())
    {
        // Send the portion of the buffer now occupied by the message
        link->writeBytes((const char*)buffer, len);
    }
}

/**
 * @param value battery voltage
 */
float UAS::filterVoltage(float value) const
{
    return lpVoltage * 0.7f + value * 0.3f;
}

/**
* The mode can be preflight or unknown.
* @Return the mode of the autopilot
*/
QString UAS::getNavModeText(int mode)
{
    if (autopilot == MAV_AUTOPILOT_PIXHAWK)
    {
        switch (mode)
        {
        case 0:
            return QString("PREFLIGHT");
            break;
        default:
            return QString("UNKNOWN");
        }
    }
    else if (autopilot == MAV_AUTOPILOT_ARDUPILOTMEGA)
    {
        return QString("UNKNOWN");
    }
    else if (autopilot == MAV_AUTOPILOT_OPENPILOT)
    {
        return QString("UNKNOWN");
    }
    // If nothing matches, return unknown
    return QString("UNKNOWN");
}

/** 
* Get the status of the code and a description of the status.
* Status can be unitialized, booting up, calibrating sensors, active
* standby, cirtical, emergency, shutdown or unknown.
*/
void UAS::getStatusForCode(int statusCode, QString& uasState, QString& stateDescription)
{
    switch (statusCode)
    {
    case MAV_STATE_UNINIT:
        uasState = tr("UNINIT");
        stateDescription = tr("Unitialized, booting up.");
        break;
    case MAV_STATE_BOOT:
        uasState = tr("BOOT");
        stateDescription = tr("Booting system, please wait.");
        break;
    case MAV_STATE_CALIBRATING:
        uasState = tr("CALIBRATING");
        stateDescription = tr("Calibrating sensors, please wait.");
        break;
    case MAV_STATE_ACTIVE:
        uasState = tr("ACTIVE");
        stateDescription = tr("Active, normal operation.");
        break;
    case MAV_STATE_STANDBY:
        uasState = tr("STANDBY");
        stateDescription = tr("Standby mode, ready for launch.");
        break;
    case MAV_STATE_CRITICAL:
        uasState = tr("CRITICAL");
        stateDescription = tr("FAILURE: Continuing operation.");
        break;
    case MAV_STATE_EMERGENCY:
        uasState = tr("EMERGENCY");
        stateDescription = tr("EMERGENCY: Land Immediately!");
        break;
        //case MAV_STATE_HILSIM:
        //uasState = tr("HIL SIM");
        //stateDescription = tr("HIL Simulation, Sensors read from SIM");
        //break;

    case MAV_STATE_POWEROFF:
        uasState = tr("SHUTDOWN");
        stateDescription = tr("Powering off system.");
        break;

    default:
        uasState = tr("UNKNOWN");
        stateDescription = tr("Unknown system state");
        break;
    }
}

QImage UAS::getImage()
{
#ifdef MAVLINK_ENABLED_PIXHAWK

//    qDebug() << "IMAGE TYPE:" << imageType;

    // RAW greyscale
    if (imageType == MAVLINK_DATA_STREAM_IMG_RAW8U)
    {
        // TODO FIXME
        int imgColors = 255;//imageSize/(imageWidth*imageHeight);
        //const int headerSize = 15;

        // Construct PGM header
        QString header("P5\n%1 %2\n%3\n");
        header = header.arg(imageWidth).arg(imageHeight).arg(imgColors);

        QByteArray tmpImage(header.toStdString().c_str(), header.toStdString().size());
        tmpImage.append(imageRecBuffer);

        //qDebug() << "IMAGE SIZE:" << tmpImage.size() << "HEADER SIZE: (15):" << header.size() << "HEADER: " << header;

        if (imageRecBuffer.isNull())
        {
            qDebug()<< "could not convertToPGM()";
            return QImage();
        }

        if (!image.loadFromData(tmpImage, "PGM"))
        {
            qDebug()<< "could not create extracted image";
            return QImage();
        }

    }
    // BMP with header
    else if (imageType == MAVLINK_DATA_STREAM_IMG_BMP ||
             imageType == MAVLINK_DATA_STREAM_IMG_JPEG ||
             imageType == MAVLINK_DATA_STREAM_IMG_PGM ||
             imageType == MAVLINK_DATA_STREAM_IMG_PNG)
    {
        if (!image.loadFromData(imageRecBuffer))
        {
            qDebug() << "Loading data from image buffer failed!";
        }
    }
    // Restart statemachine
    imagePacketsArrived = 0;
    //imageRecBuffer.clear();
    return image;
#else
    return QImage();
#endif

}

void UAS::requestImage()
{
#ifdef MAVLINK_ENABLED_PIXHAWK
    qDebug() << "trying to get an image from the uas...";

    // check if there is already an image transmission going on
    if (imagePacketsArrived == 0)
    {
        mavlink_message_t msg;
        mavlink_msg_data_transmission_handshake_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, DATA_TYPE_JPEG_IMAGE, 0, 0, 0, 0, 0, 50);
        sendMessage(msg);
    }
#endif
}


/* MANAGEMENT */

/**
 *
 * @return The uptime in milliseconds
 *
 */
quint64 UAS::getUptime() const
{
    if(startTime == 0)
    {
        return 0;
    }
    else
    {
        return QGC::groundTimeMilliseconds() - startTime;
    }
}

int UAS::getCommunicationStatus() const
{
    return commStatus;
}

void UAS::requestParameters()
{
    mavlink_message_t msg;
    mavlink_msg_param_request_list_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, this->getUASID(), MAV_COMP_ID_ALL);
    sendMessage(msg);
    qDebug() << __FILE__ << __LINE__ << "LOADING PARAM LIST";
}

void UAS::writeParametersToStorage()
{
    mavlink_message_t msg;
    mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, 0, MAV_CMD_PREFLIGHT_STORAGE, 1, 1, -1, -1, -1, 0, 0, 0);
    qDebug() << "SENT COMMAND" << MAV_CMD_PREFLIGHT_STORAGE;
    sendMessage(msg);
}

void UAS::readParametersFromStorage()
{
    mavlink_message_t msg;
    mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, 0, MAV_CMD_PREFLIGHT_STORAGE, 1, 0, -1, -1, -1, 0, 0, 0);
    sendMessage(msg);
}

/** 
* @param rate The update rate in Hz the message should be sent
*/
void UAS::enableAllDataTransmission(int rate)
{
    // Buffers to write data to
    mavlink_message_t msg;
    mavlink_request_data_stream_t stream;
    // Select the message to request from now on
    // 0 is a magic ID and will enable/disable the standard message set except for heartbeat
    stream.req_stream_id = MAV_DATA_STREAM_ALL;
    // Select the update rate in Hz the message should be send
    // All messages will be send with their default rate
    // TODO: use 0 to turn off and get rid of enable/disable? will require
    //  a different magic flag for turning on defaults, possibly something really high like 1111 ?
    stream.req_message_rate = 0;
    // Start / stop the message
    stream.start_stop = (rate) ? 1 : 0;
    // The system which should take this command
    stream.target_system = uasId;
    // The component / subsystem which should take this command
    stream.target_component = 0;
    // Encode and send the message
    mavlink_msg_request_data_stream_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &stream);
    // Send message twice to increase chance of reception
    sendMessage(msg);
}

/** 
* @param rate The update rate in Hz the message should be sent
*/
void UAS::enableRawSensorDataTransmission(int rate)
{
    // Buffers to write data to
    mavlink_message_t msg;
    mavlink_request_data_stream_t stream;
    // Select the message to request from now on
    stream.req_stream_id = MAV_DATA_STREAM_RAW_SENSORS;
    // Select the update rate in Hz the message should be send
    stream.req_message_rate = rate;
    // Start / stop the message
    stream.start_stop = (rate) ? 1 : 0;
    // The system which should take this command
    stream.target_system = uasId;
    // The component / subsystem which should take this command
    stream.target_component = 0;
    // Encode and send the message
    mavlink_msg_request_data_stream_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &stream);
    // Send message twice to increase chance of reception
    sendMessage(msg);
}

/** 
* @param rate The update rate in Hz the message should be sent
*/
void UAS::enableExtendedSystemStatusTransmission(int rate)
{
    // Buffers to write data to
    mavlink_message_t msg;
    mavlink_request_data_stream_t stream;
    // Select the message to request from now on
    stream.req_stream_id = MAV_DATA_STREAM_EXTENDED_STATUS;
    // Select the update rate in Hz the message should be send
    stream.req_message_rate = rate;
    // Start / stop the message
    stream.start_stop = (rate) ? 1 : 0;
    // The system which should take this command
    stream.target_system = uasId;
    // The component / subsystem which should take this command
    stream.target_component = 0;
    // Encode and send the message
    mavlink_msg_request_data_stream_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &stream);
    // Send message twice to increase chance of reception
    sendMessage(msg);
}

/** 
* @param rate The update rate in Hz the message should be sent
*/
void UAS::enableRCChannelDataTransmission(int rate)
{
#if defined(MAVLINK_ENABLED_UALBERTA_MESSAGES)
    mavlink_message_t msg;
    mavlink_msg_request_rc_channels_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, enabled);
    sendMessage(msg);
#else
    mavlink_message_t msg;
    mavlink_request_data_stream_t stream;
    // Select the message to request from now on
    stream.req_stream_id = MAV_DATA_STREAM_RC_CHANNELS;
    // Select the update rate in Hz the message should be send
    stream.req_message_rate = rate;
    // Start / stop the message
    stream.start_stop = (rate) ? 1 : 0;
    // The system which should take this command
    stream.target_system = uasId;
    // The component / subsystem which should take this command
    stream.target_component = 0;
    // Encode and send the message
    mavlink_msg_request_data_stream_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &stream);
    // Send message twice to increase chance of reception
    sendMessage(msg);
#endif
}

/** 
* @param rate The update rate in Hz the message should be sent
*/
void UAS::enableRawControllerDataTransmission(int rate)
{
    // Buffers to write data to
    mavlink_message_t msg;
    mavlink_request_data_stream_t stream;
    // Select the message to request from now on
    stream.req_stream_id = MAV_DATA_STREAM_RAW_CONTROLLER;
    // Select the update rate in Hz the message should be send
    stream.req_message_rate = rate;
    // Start / stop the message
    stream.start_stop = (rate) ? 1 : 0;
    // The system which should take this command
    stream.target_system = uasId;
    // The component / subsystem which should take this command
    stream.target_component = 0;
    // Encode and send the message
    mavlink_msg_request_data_stream_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &stream);
    // Send message twice to increase chance of reception
    sendMessage(msg);
}

//void UAS::enableRawSensorFusionTransmission(int rate)
//{
//    // Buffers to write data to
//    mavlink_message_t msg;
//    mavlink_request_data_stream_t stream;
//    // Select the message to request from now on
//    stream.req_stream_id = MAV_DATA_STREAM_RAW_SENSOR_FUSION;
//    // Select the update rate in Hz the message should be send
//    stream.req_message_rate = rate;
//    // Start / stop the message
//    stream.start_stop = (rate) ? 1 : 0;
//    // The system which should take this command
//    stream.target_system = uasId;
//    // The component / subsystem which should take this command
//    stream.target_component = 0;
//    // Encode and send the message
//    mavlink_msg_request_data_stream_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &stream);
//    // Send message twice to increase chance of reception
//    sendMessage(msg);
//    sendMessage(msg);
//}

/** 
* @param rate The update rate in Hz the message should be sent
*/
void UAS::enablePositionTransmission(int rate)
{
    // Buffers to write data to
    mavlink_message_t msg;
    mavlink_request_data_stream_t stream;
    // Select the message to request from now on
    stream.req_stream_id = MAV_DATA_STREAM_POSITION;
    // Select the update rate in Hz the message should be send
    stream.req_message_rate = rate;
    // Start / stop the message
    stream.start_stop = (rate) ? 1 : 0;
    // The system which should take this command
    stream.target_system = uasId;
    // The component / subsystem which should take this command
    stream.target_component = 0;
    // Encode and send the message
    mavlink_msg_request_data_stream_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &stream);
    // Send message twice to increase chance of reception
    sendMessage(msg);
}

/** 
* @param rate The update rate in Hz the message should be sent
*/
void UAS::enableExtra1Transmission(int rate)
{
    // Buffers to write data to
    mavlink_message_t msg;
    mavlink_request_data_stream_t stream;
    // Select the message to request from now on
    stream.req_stream_id = MAV_DATA_STREAM_EXTRA1;
    // Select the update rate in Hz the message should be send
    stream.req_message_rate = rate;
    // Start / stop the message
    stream.start_stop = (rate) ? 1 : 0;
    // The system which should take this command
    stream.target_system = uasId;
    // The component / subsystem which should take this command
    stream.target_component = 0;
    // Encode and send the message
    mavlink_msg_request_data_stream_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &stream);
    // Send message twice to increase chance of reception
    sendMessage(msg);
    sendMessage(msg);
}

/** 
* @param rate The update rate in Hz the message should be sent
*/
void UAS::enableExtra2Transmission(int rate)
{
    // Buffers to write data to
    mavlink_message_t msg;
    mavlink_request_data_stream_t stream;
    // Select the message to request from now on
    stream.req_stream_id = MAV_DATA_STREAM_EXTRA2;
    // Select the update rate in Hz the message should be send
    stream.req_message_rate = rate;
    // Start / stop the message
    stream.start_stop = (rate) ? 1 : 0;
    // The system which should take this command
    stream.target_system = uasId;
    // The component / subsystem which should take this command
    stream.target_component = 0;
    // Encode and send the message
    mavlink_msg_request_data_stream_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &stream);
    // Send message twice to increase chance of reception
    sendMessage(msg);
    sendMessage(msg);
}

/** 
* @param rate The update rate in Hz the message should be sent
*/
void UAS::enableExtra3Transmission(int rate)
{
    // Buffers to write data to
    mavlink_message_t msg;
    mavlink_request_data_stream_t stream;
    // Select the message to request from now on
    stream.req_stream_id = MAV_DATA_STREAM_EXTRA3;
    // Select the update rate in Hz the message should be send
    stream.req_message_rate = rate;
    // Start / stop the message
    stream.start_stop = (rate) ? 1 : 0;
    // The system which should take this command
    stream.target_system = uasId;
    // The component / subsystem which should take this command
    stream.target_component = 0;
    // Encode and send the message
    mavlink_msg_request_data_stream_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &stream);
    // Send message twice to increase chance of reception
    sendMessage(msg);
    sendMessage(msg);
}

/**
 * Set a parameter value onboard
 *
 * @param component The component to set the parameter
 * @param id Name of the parameter 
 */
void UAS::setParameter(const int component, const QString& id, const QVariant& value)
{
    if (!id.isNull())
    {
        mavlink_message_t msg;
        mavlink_param_set_t p;
        mavlink_param_union_t union_value;

        // Assign correct value based on QVariant
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        // TODO: This is a hack for MAV_AUTOPILOT_ARDUPILOTMEGA until the new version of MAVLink and a fix for their param handling.
2354
        if (getAutopilotType() == MAV_AUTOPILOT_ARDUPILOTMEGA)
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        {
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            switch (value.type())
            {
            case QVariant::Char:
                union_value.param_float = (unsigned char)value.toChar().toAscii();
                p.param_type = MAV_PARAM_TYPE_INT8;
                break;
            case QVariant::Int:
                union_value.param_float = value.toInt();
                p.param_type = MAV_PARAM_TYPE_INT32;
                break;
            case QVariant::UInt:
                union_value.param_float = value.toUInt();
                p.param_type = MAV_PARAM_TYPE_UINT32;
                break;
            case QMetaType::Float:
                union_value.param_float = value.toFloat();
                p.param_type = MAV_PARAM_TYPE_REAL32;
                break;
            default:
                qCritical() << "ABORTED PARAM SEND, NO VALID QVARIANT TYPE";
                return;
            }
        }
        else
        {
            switch (value.type())
            {
            case QVariant::Char:
                union_value.param_int8 = (unsigned char)value.toChar().toAscii();
                p.param_type = MAV_PARAM_TYPE_INT8;
                break;
            case QVariant::Int:
                union_value.param_int32 = value.toInt();
                p.param_type = MAV_PARAM_TYPE_INT32;
                break;
            case QVariant::UInt:
                union_value.param_uint32 = value.toUInt();
                p.param_type = MAV_PARAM_TYPE_UINT32;
                break;
            case QMetaType::Float:
                union_value.param_float = value.toFloat();
                p.param_type = MAV_PARAM_TYPE_REAL32;
                break;
            default:
                qCritical() << "ABORTED PARAM SEND, NO VALID QVARIANT TYPE";
                return;
            }
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        }

        p.param_value = union_value.param_float;
        p.target_system = (uint8_t)uasId;
        p.target_component = (uint8_t)component;

        //qDebug() << "SENT PARAM:" << value;

        // Copy string into buffer, ensuring not to exceed the buffer size
        for (unsigned int i = 0; i < sizeof(p.param_id); i++)
        {
            // String characters
            if ((int)i < id.length())
            {
                p.param_id[i] = id.toAscii()[i];
            }
            else
            {
                // Fill rest with zeros
                p.param_id[i] = 0;
            }
        }
        mavlink_msg_param_set_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &p);
        sendMessage(msg);
    }
}

/**    
* Request parameter, use parameter name to request it.
*/
void UAS::requestParameter(int component, int id)
{
    // Request parameter, use parameter name to request it
    mavlink_message_t msg;
    mavlink_param_request_read_t read;
    read.param_index = id;
    read.param_id[0] = '\0'; // Enforce null termination
    read.target_system = uasId;
    read.target_component = component;
    mavlink_msg_param_request_read_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &read);
    sendMessage(msg);
    //qDebug() << __FILE__ << __LINE__ << "REQUESTING PARAM RETRANSMISSION FROM COMPONENT" << component << "FOR PARAM ID" << id;
}

/**
* Request a parameter, use parameter name to request it.
*/
void UAS::requestParameter(int component, const QString& parameter)
{
    // Request parameter, use parameter name to request it
    mavlink_message_t msg;
    mavlink_param_request_read_t read;
    read.param_index = -1;
    // Copy full param name or maximum max field size
    if (parameter.length() > MAVLINK_MSG_PARAM_REQUEST_READ_FIELD_PARAM_ID_LEN)
    {
        emit textMessageReceived(uasId, 0, 255, QString("QGC WARNING: Parameter name %1 is more than %2 bytes long. This might lead to errors and mishaps!").arg(parameter).arg(MAVLINK_MSG_PARAM_REQUEST_READ_FIELD_PARAM_ID_LEN-1));
    }
    memcpy(read.param_id, parameter.toStdString().c_str(), qMax(parameter.length(), MAVLINK_MSG_PARAM_REQUEST_READ_FIELD_PARAM_ID_LEN));
    read.param_id[15] = '\0'; // Enforce null termination
    read.target_system = uasId;
    read.target_component = component;
    mavlink_msg_param_request_read_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &read);
    sendMessage(msg);
    qDebug() << __FILE__ << __LINE__ << "REQUESTING PARAM RETRANSMISSION FROM COMPONENT" << component << "FOR PARAM NAME" << parameter;
}

/**
* @param systemType Type of MAV.
*/
void UAS::setSystemType(int systemType)
{
    if((systemType >= MAV_TYPE_GENERIC) && (systemType < MAV_TYPE_ENUM_END))
    {
      type = systemType;
    
      // If the airframe is still generic, change it to a close default type
      if (airframe == 0)
      {
          switch (systemType)
          {
          case MAV_TYPE_FIXED_WING:
              airframe = QGC_AIRFRAME_EASYSTAR;
              break;
          case MAV_TYPE_QUADROTOR:
              airframe = QGC_AIRFRAME_MIKROKOPTER;
              break;
          }
      }
      emit systemSpecsChanged(uasId);
   }
}

void UAS::setUASName(const QString& name)
{
    if (name != "")
    {
        this->name = name;
        writeSettings();
        emit nameChanged(name);
        emit systemSpecsChanged(uasId);
    }
}

void UAS::executeCommand(MAV_CMD command)
{
    mavlink_message_t msg;
    mavlink_command_long_t cmd;
    cmd.command = (uint16_t)command;
    cmd.confirmation = 0;
    cmd.param1 = 0.0f;
    cmd.param2 = 0.0f;
    cmd.param3 = 0.0f;
    cmd.param4 = 0.0f;
    cmd.param5 = 0.0f;
    cmd.param6 = 0.0f;
    cmd.param7 = 0.0f;
    cmd.target_system = uasId;
    cmd.target_component = 0;
    mavlink_msg_command_long_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &cmd);
    sendMessage(msg);
}
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void UAS::executeCommandAck(int num, bool success)
{
    mavlink_message_t msg;
    mavlink_command_ack_t ack;
    ack.command = num;
    ack.result = (success ? 1 : 0);
    mavlink_msg_command_ack_encode(mavlink->getSystemId(),mavlink->getComponentId(),&msg,&ack);
    sendMessage(msg);
}
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void UAS::executeCommand(MAV_CMD command, int confirmation, float param1, float param2, float param3, float param4, float param5, float param6, float param7, int component)
{
    mavlink_message_t msg;
    mavlink_command_long_t cmd;
    cmd.command = (uint16_t)command;
    cmd.confirmation = confirmation;
    cmd.param1 = param1;
    cmd.param2 = param2;
    cmd.param3 = param3;
    cmd.param4 = param4;
    cmd.param5 = param5;
    cmd.param6 = param6;
    cmd.param7 = param7;
    cmd.target_system = uasId;
    cmd.target_component = component;
    mavlink_msg_command_long_encode(mavlink->getSystemId(), mavlink->getComponentId(), &msg, &cmd);
    sendMessage(msg);
}

/**
 * Launches the system
 *
 */
void UAS::launch()
{
    mavlink_message_t msg;
    mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, this->getUASID(), 0, MAV_CMD_NAV_TAKEOFF, 1, 0, 0, 0, 0, 0, 0, 0);
    sendMessage(msg);
}

/**
 * @warning Depending on the UAS, this might make the rotors of a helicopter spinning
 *
 */
void UAS::armSystem()
{
    mavlink_message_t msg;
    mavlink_msg_set_mode_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, this->getUASID(), mode | MAV_MODE_FLAG_SAFETY_ARMED, navMode);
    sendMessage(msg);
}

/**
 * @warning Depending on the UAS, this might completely stop all motors.
 *
 */
void UAS::disarmSystem()
{
    mavlink_message_t msg;
    mavlink_msg_set_mode_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, this->getUASID(), mode & ~MAV_MODE_FLAG_SAFETY_ARMED, navMode);
    sendMessage(msg);
}

/** 
* Set the manual control commands. 
* This can only be done if the system has manual inputs enabled and is armed.
*/
void UAS::setManualControlCommands(double roll, double pitch, double yaw, double thrust, int xHat, int yHat, int buttons)
{
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    Q_UNUSED(xHat);
    Q_UNUSED(yHat);

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    // Scale values
    double rollPitchScaling = 1.0f * 1000.0f;
    double yawScaling = 1.0f * 1000.0f;
    double thrustScaling = 1.0f * 1000.0f;

    manualRollAngle = roll * rollPitchScaling;
    manualPitchAngle = pitch * rollPitchScaling;
    manualYawAngle = yaw * yawScaling;
    manualThrust = thrust * thrustScaling;

    // If system has manual inputs enabled and is armed
    if(((mode & MAV_MODE_FLAG_DECODE_POSITION_MANUAL) && (mode & MAV_MODE_FLAG_DECODE_POSITION_SAFETY)) || (mode & MAV_MODE_FLAG_HIL_ENABLED))
    {
        mavlink_message_t message;
        mavlink_msg_manual_control_pack(mavlink->getSystemId(), mavlink->getComponentId(), &message, this->uasId, (float)manualPitchAngle, (float)manualRollAngle, (float)manualThrust, (float)manualYawAngle, buttons);
        sendMessage(message);
        //qDebug() << __FILE__ << __LINE__ << ": SENT MANUAL CONTROL MESSAGE: roll" << manualRollAngle << " pitch: " << manualPitchAngle << " yaw: " << manualYawAngle << " thrust: " << manualThrust;

        emit attitudeThrustSetPointChanged(this, roll, pitch, yaw, thrust, QGC::groundTimeMilliseconds());
    }
    else
    {
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        //qDebug() << "JOYSTICK/MANUAL CONTROL: IGNORING COMMANDS: Set mode to MANUAL to send joystick commands first";
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    }
}

void UAS::setManual6DOFControlCommands(double x, double y, double z, double roll, double pitch, double yaw)
{
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    // If system has manual inputs enabled and is armed
    if(((mode & MAV_MODE_FLAG_DECODE_POSITION_MANUAL) && (mode & MAV_MODE_FLAG_DECODE_POSITION_SAFETY)) || (mode & MAV_MODE_FLAG_HIL_ENABLED))
    {
        mavlink_message_t message;
        mavlink_msg_setpoint_6dof_pack(mavlink->getSystemId(), mavlink->getComponentId(), &message, this->uasId, (float)x, (float)y, (float)z, (float)roll, (float)pitch, (float)yaw);
        sendMessage(message);
        qDebug() << __FILE__ << __LINE__ << ": SENT 6DOF CONTROL MESSAGE: x" << x << " y: " << y << " z: " << z << " roll: " << roll << " pitch: " << pitch << " yaw: " << yaw;

        //emit attitudeThrustSetPointChanged(this, roll, pitch, yaw, thrust, QGC::groundTimeMilliseconds());
    }
    else
    {
        qDebug() << "3DMOUSE/MANUAL CONTROL: IGNORING COMMANDS: Set mode to MANUAL to send 3DMouse commands first";
    }
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}

/**
* @return the type of the system
*/
int UAS::getSystemType()
{
    return this->type;
}

/**
* @param buttonIndex
*/
void UAS::receiveButton(int buttonIndex)
{
    switch (buttonIndex)
    {
    case 0:

        break;
    case 1:

        break;
    default:

        break;
    }
    //    qDebug() << __FILE__ << __LINE__ << ": Received button clicked signal (button # is: " << buttonIndex << "), UNIMPLEMENTED IN MAVLINK!";

}

/**
* Halt the uas.
*/
void UAS::halt()
{
    mavlink_message_t msg;
    mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, MAV_COMP_ID_ALL, MAV_CMD_OVERRIDE_GOTO, 1, MAV_GOTO_DO_HOLD, MAV_GOTO_HOLD_AT_CURRENT_POSITION, 0, 0, 0, 0, 0);
    sendMessage(msg);
}

/**
* Make the UAS move.
*/
void UAS::go()
{
    mavlink_message_t msg;
    mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, MAV_COMP_ID_ALL, MAV_CMD_OVERRIDE_GOTO, 1, MAV_GOTO_DO_CONTINUE, MAV_GOTO_HOLD_AT_CURRENT_POSITION, 0, 0, 0, 0, 0);
    sendMessage(msg);
}

/** 
* Order the robot to return home 
*/
void UAS::home()
{
    mavlink_message_t msg;

    double latitude = UASManager::instance()->getHomeLatitude();
    double longitude = UASManager::instance()->getHomeLongitude();
    double altitude = UASManager::instance()->getHomeAltitude();
    int frame = UASManager::instance()->getHomeFrame();

    mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, MAV_COMP_ID_ALL, MAV_CMD_OVERRIDE_GOTO, 1, MAV_GOTO_DO_CONTINUE, MAV_GOTO_HOLD_AT_CURRENT_POSITION, frame, 0, latitude, longitude, altitude);
    sendMessage(msg);
}

/**
* Order the robot to land on the runway 
*/
void UAS::land()
{
    mavlink_message_t msg;

    mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, MAV_COMP_ID_ALL, MAV_CMD_NAV_LAND, 1, 0, 0, 0, 0, 0, 0, 0);
    sendMessage(msg);
}

/**
 * The MAV starts the emergency landing procedure. The behaviour depends on the onboard implementation
 * and might differ between systems.
 */
void UAS::emergencySTOP()
{
    // FIXME MAVLINKV10PORTINGNEEDED
    halt();
}

/**
 * Shut down this mav - All onboard systems are immediately shut down (e.g. the
 *  main power line is cut).
 * @warning This might lead to a crash.
 *
 * The command will not be executed until emergencyKILLConfirm is issues immediately afterwards
 */
bool UAS::emergencyKILL()
{
    halt();
    // FIXME MAVLINKV10PORTINGNEEDED
    //    bool result = false;
    //    QMessageBox msgBox;
    //    msgBox.setIcon(QMessageBox::Critical);
    //    msgBox.setText("EMERGENCY: KILL ALL MOTORS ON UAS");
    //    msgBox.setInformativeText("Do you want to cut power on all systems?");
    //    msgBox.setStandardButtons(QMessageBox::Yes | QMessageBox::Cancel);
    //    msgBox.setDefaultButton(QMessageBox::Cancel);
    //    int ret = msgBox.exec();

    //    // Close the message box shortly after the click to prevent accidental clicks
    //    QTimer::singleShot(5000, &msgBox, SLOT(reject()));


    //    if (ret == QMessageBox::Yes)
    //    {
    //        mavlink_message_t msg;
    //        // TODO Replace MG System ID with static function call and allow to change ID in GUI
    //        mavlink_msg_action_pack(MG::SYSTEM::ID, MG::SYSTEM::COMPID, &msg, this->getUASID(), MAV_COMP_ID_IMU, (int)MAV_ACTION_EMCY_KILL);
    //        // Send message twice to increase chance of reception
    //        sendMessage(msg);
    //        sendMessage(msg);
    //        result = true;
    //    }
    //    return result;
    return false;
}

/**
* If enabled, connect the flight gear link.
*/
void UAS::enableHilFlightGear(bool enable, QString options)
{
    QGCFlightGearLink* link = dynamic_cast<QGCFlightGearLink*>(simulation);
    if (!link || !simulation) {
        // Delete wrong sim
        if (simulation) {
            stopHil();
            delete simulation;
        }
        simulation = new QGCFlightGearLink(this, options);
    }
    // Connect Flight Gear Link
    link = dynamic_cast<QGCFlightGearLink*>(simulation);
    link->setStartupArguments(options);
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    if (enable)
    {
        startHil();
    }
    else
    {
        stopHil();
    }
}

/**
* If enabled, connect the JSBSim link.
*/
void UAS::enableHilJSBSim(bool enable, QString options)
{
    QGCJSBSimLink* link = dynamic_cast<QGCJSBSimLink*>(simulation);
    if (!link || !simulation) {
        // Delete wrong sim
        if (simulation) {
            stopHil();
            delete simulation;
        }
        simulation = new QGCJSBSimLink(this, options);
    }
    // Connect Flight Gear Link
    link = dynamic_cast<QGCJSBSimLink*>(simulation);
    link->setStartupArguments(options);
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    if (enable)
    {
        startHil();
    }
    else
    {
        stopHil();
    }
}

/**
* If enabled, connect the X-plane gear link.
*/
void UAS::enableHilXPlane(bool enable)
{
    QGCXPlaneLink* link = dynamic_cast<QGCXPlaneLink*>(simulation);
    if (!link || !simulation) {
        if (simulation) {
            stopHil();
            delete simulation;
        }
        qDebug() << "CREATED NEW XPLANE LINK";
        simulation = new QGCXPlaneLink(this);
    }
    // Connect X-Plane Link
    if (enable)
    {
        startHil();
    }
    else
    {
        stopHil();
    }
}

/**
* @param time_us Timestamp (microseconds since UNIX epoch or microseconds since system boot)
* @param roll Roll angle (rad)
* @param pitch Pitch angle (rad)
* @param yaw Yaw angle (rad)
* @param rollspeed Roll angular speed (rad/s)
* @param pitchspeed Pitch angular speed (rad/s)
* @param yawspeed Yaw angular speed (rad/s)
* @param lat Latitude, expressed as * 1E7
* @param lon Longitude, expressed as * 1E7
* @param alt Altitude in meters, expressed as * 1000 (millimeters)
* @param vx Ground X Speed (Latitude), expressed as m/s * 100
* @param vy Ground Y Speed (Longitude), expressed as m/s * 100
* @param vz Ground Z Speed (Altitude), expressed as m/s * 100
* @param xacc X acceleration (mg)
* @param yacc Y acceleration (mg)
* @param zacc Z acceleration (mg)
*/
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void UAS::sendHilState(quint64 time_us, float roll, float pitch, float yaw, float rollspeed,
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                       float pitchspeed, float yawspeed, double lat, double lon, double alt,
                       float vx, float vy, float vz, float xacc, float yacc, float zacc)
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{
    if (this->mode & MAV_MODE_FLAG_HIL_ENABLED)
    {
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        if (QGC::groundTimeMilliseconds() - lastSendTimeSensors < 100) {
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            // Emit attitude for cross-check
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            emit attitudeChanged(this, 201, roll, pitch, yaw, getUnixTime());
            emit valueChanged(uasId, "roll sim", "rad", roll, getUnixTime());
            emit valueChanged(uasId, "pitch sim", "rad", pitch, getUnixTime());
            emit valueChanged(uasId, "yaw sim", "rad", yaw, getUnixTime());

            emit valueChanged(uasId, "roll rate sim", "rad/s", rollspeed, getUnixTime());
            emit valueChanged(uasId, "pitch rate sim", "rad/s", pitchspeed, getUnixTime());
            emit valueChanged(uasId, "yaw rate sim", "rad/s", yawspeed, getUnixTime());
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            emit valueChanged(uasId, "vx sim", "rad", vx*100, getUnixTime());
            emit valueChanged(uasId, "vy sim", "rad", vy*100, getUnixTime());
            emit valueChanged(uasId, "vz sim", "rad", vz*100, getUnixTime());
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        } else {
            mavlink_message_t msg;
            mavlink_msg_hil_state_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg,
                                       time_us, roll, pitch, yaw, rollspeed, pitchspeed, yawspeed,
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                                       lat*1e7f, lon*1e7f, alt*1000, vx*100, vy*100, vz*100, xacc*1000/9.81, yacc*1000/9.81, zacc*1000/9.81);
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            sendMessage(msg);
        }
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    }
    else
    {
        // Attempt to set HIL mode
        mavlink_message_t msg;
        mavlink_msg_set_mode_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, this->getUASID(), mode | MAV_MODE_FLAG_HIL_ENABLED, navMode);
        sendMessage(msg);
        qDebug() << __FILE__ << __LINE__ << "HIL is onboard not enabled, trying to enable.";
    }
}

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void UAS::sendHilSensors(quint64 time_us, float xacc, float yacc, float zacc, float rollspeed, float pitchspeed, float yawspeed,
                                    float xmag, float ymag, float zmag, float abs_pressure, float diff_pressure, float pressure_alt, float temperature, quint16 fields_changed)
{
    if (this->mode & MAV_MODE_FLAG_HIL_ENABLED)
    {
        mavlink_message_t msg;
        mavlink_msg_highres_imu_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg,
                                   time_us, xacc, yacc, zacc, rollspeed, pitchspeed, yawspeed,
                                     xmag, ymag, zmag, abs_pressure, diff_pressure, pressure_alt, temperature,
                                     fields_changed);
        sendMessage(msg);
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        sensorHil = true;
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        lastSendTimeSensors = QGC::groundTimeMilliseconds();
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    }
    else
    {
        // Attempt to set HIL mode
        mavlink_message_t msg;
        mavlink_msg_set_mode_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, this->getUASID(), mode | MAV_MODE_FLAG_HIL_ENABLED, navMode);
        sendMessage(msg);
        qDebug() << __FILE__ << __LINE__ << "HIL is onboard not enabled, trying to enable.";
    }
}

void UAS::sendHilGps(quint64 time_us, double lat, double lon, double alt, int fix_type, float eph, float epv, float vel, float cog, int satellites)
{
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    // Only send at 10 Hz max rate
    if (QGC::groundTimeMilliseconds() - lastSendTimeGPS < 100)
        return;

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    if (this->mode & MAV_MODE_FLAG_HIL_ENABLED)
    {
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        float course = cog;
        // map to 0..2pi
        if (course < 0)
            course += 2.0f * M_PI;
        // scale from radians to degrees
        course = (course / M_PI) * 180.0f;

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        mavlink_message_t msg;
        mavlink_msg_gps_raw_int_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg,
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                                   time_us, fix_type, lat*1e7, lon*1e7, alt*1e3, eph*1e2, epv*1e2, vel*1e2, course*1e2, satellites);
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        lastSendTimeGPS = QGC::groundTimeMilliseconds();
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        sendMessage(msg);
    }
    else
    {
        // Attempt to set HIL mode
        mavlink_message_t msg;
        mavlink_msg_set_mode_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, this->getUASID(), mode | MAV_MODE_FLAG_HIL_ENABLED, navMode);
        sendMessage(msg);
        qDebug() << __FILE__ << __LINE__ << "HIL is onboard not enabled, trying to enable.";
    }
}


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/**
* Connect flight gear link.
**/
void UAS::startHil()
{
    if (hilEnabled) return;
    hilEnabled = true;
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    sensorHil = false;
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    mavlink_message_t msg;
    mavlink_msg_set_mode_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, this->getUASID(), mode | MAV_MODE_FLAG_HIL_ENABLED, navMode);
    sendMessage(msg);
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    // Connect HIL simulation link
    simulation->connectSimulation();
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}

/**
* disable flight gear link.
*/
void UAS::stopHil()
{
    if (simulation) simulation->disconnectSimulation();
    mavlink_message_t msg;
    mavlink_msg_set_mode_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, this->getUASID(), mode & !MAV_MODE_FLAG_HIL_ENABLED, navMode);
    sendMessage(msg);
    hilEnabled = false;
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    sensorHil = false;
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}

void UAS::shutdown()
{
    QMessageBox msgBox;
    msgBox.setIcon(QMessageBox::Critical);
    msgBox.setText("Shutting down the UAS");
    msgBox.setInformativeText("Do you want to shut down the onboard computer?");

    msgBox.setStandardButtons(QMessageBox::Yes | QMessageBox::Cancel);
    msgBox.setDefaultButton(QMessageBox::Cancel);
    int ret = msgBox.exec();

    // Close the message box shortly after the click to prevent accidental clicks
    QTimer::singleShot(5000, &msgBox, SLOT(reject()));

    if (ret == QMessageBox::Yes)
    {
        // If the active UAS is set, execute command
        mavlink_message_t msg;
        mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, MAV_COMP_ID_ALL, MAV_CMD_PREFLIGHT_REBOOT_SHUTDOWN, 1, 0, 2, 0, 0, 0, 0, 0);
        sendMessage(msg);
    }
}

/**
* @param x position
* @param y position
* @param z position
* @param yaw
*/
void UAS::setTargetPosition(float x, float y, float z, float yaw)
{
    mavlink_message_t msg;
    mavlink_msg_command_long_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, uasId, MAV_COMP_ID_ALL, MAV_CMD_NAV_PATHPLANNING, 1, 1, 1, 0, yaw, x, y, z);
    sendMessage(msg);
}

/**
 * @return The name of this system as string in human-readable form
 */
QString UAS::getUASName(void) const
{
    QString result;
    if (name == "")
    {
        result = tr("MAV ") + result.sprintf("%03d", getUASID());
    }
    else
    {
        result = name;
    }
    return result;
}

/**
* @return the state of the uas as a short text.
*/
const QString& UAS::getShortState() const
{
    return shortStateText;
}

/** 
* The mode can be autonomous, guided, manual or armed. It will also return if 
* hardware in the loop is being used.
* @return the audio mode text for the id given.
*/
QString UAS::getAudioModeTextFor(int id)
{
    QString mode;
    uint8_t modeid = id;

    // BASE MODE DECODING
    if (modeid & (uint8_t)MAV_MODE_FLAG_DECODE_POSITION_AUTO)
    {
        mode += "autonomous";
    }
    else if (modeid & (uint8_t)MAV_MODE_FLAG_DECODE_POSITION_GUIDED)
    {
        mode += "guided";
    }
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    else if (modeid & (uint8_t)MAV_MODE_FLAG_DECODE_POSITION_STABILIZE)
    {
        mode += "stabilized";
    }
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    else if (modeid & (uint8_t)MAV_MODE_FLAG_DECODE_POSITION_MANUAL)
    {
        mode += "manual";
    }
    else
    {
        // Nothing else applies, we're in preflight
        mode += "preflight";
    }

    if (modeid != 0)
    {
        mode += " mode";
    }

    // ARMED STATE DECODING
    if (modeid & (uint8_t)MAV_MODE_FLAG_DECODE_POSITION_SAFETY)
    {
        mode.append(" and armed");
    }

    // HARDWARE IN THE LOOP DECODING
    if (modeid & (uint8_t)MAV_MODE_FLAG_DECODE_POSITION_HIL)
    {
        mode.append(" using hardware in the loop simulation");
    }

    return mode;
}

/**
* The mode returned can be auto, stabilized, test, manual, preflight or unknown. 
* @return the short text of the mode for the id given.
*/
QString UAS::getShortModeTextFor(int id)
{
    QString mode;
    uint8_t modeid = id;

    qDebug() << "MODE:" << modeid;

    // BASE MODE DECODING
    if (modeid & (uint8_t)MAV_MODE_FLAG_DECODE_POSITION_AUTO)
    {
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        mode += "|AUTO";
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    }
    else if (modeid & (uint8_t)MAV_MODE_FLAG_DECODE_POSITION_GUIDED)
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    {
        mode += "|VECTOR";
    }
    if (modeid & (uint8_t)MAV_MODE_FLAG_DECODE_POSITION_STABILIZE)
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    {
        mode += "|STABILIZED";
    }
    else if (modeid & (uint8_t)MAV_MODE_FLAG_DECODE_POSITION_TEST)
    {
        mode += "|TEST";
    }
    else if (modeid & (uint8_t)MAV_MODE_FLAG_DECODE_POSITION_MANUAL)
    {
        mode += "|MANUAL";
    }
    else if (modeid == 0)
    {
        mode = "|PREFLIGHT";
    }
    else
    {
        mode = "|UNKNOWN";
    }

    // ARMED STATE DECODING
    if (modeid & (uint8_t)MAV_MODE_FLAG_DECODE_POSITION_SAFETY)
    {
        mode.prepend("A");
    }
    else
    {
        mode.prepend("D");
    }

    // HARDWARE IN THE LOOP DECODING
    if (modeid & (uint8_t)MAV_MODE_FLAG_DECODE_POSITION_HIL)
    {
        mode.prepend("HIL:");
    }

    return mode;
}

const QString& UAS::getShortMode() const
{
    return shortModeText;
}

/**
* Add the link and connect a signal to it which will be set off when it is destroyed.
*/
void UAS::addLink(LinkInterface* link)
{
    if (!links->contains(link))
    {
        links->append(link);
        connect(link, SIGNAL(destroyed(QObject*)), this, SLOT(removeLink(QObject*)));
    }
}

void UAS::removeLink(QObject* object)
{
    LinkInterface* link = dynamic_cast<LinkInterface*>(object);
    if (link)
    {
        links->removeAt(links->indexOf(link));
    }
}

/**
* @return the list of links
*/
QList<LinkInterface*>* UAS::getLinks()
{
    return links;
}

/**
* @rerturn the map of the components
*/
QMap<int, QString> UAS::getComponents()
{
    return components;
}

/**
* Set the battery type and the  number of cells.
* @param type of the battery
* @param cells Number of cells.
*/
void UAS::setBattery(BatteryType type, int cells)
{
    this->batteryType = type;
    this->cells = cells;
    switch (batteryType)
    {
    case NICD:
        break;
    case NIMH:
        break;
    case LIION:
        break;
    case LIPOLY:
        fullVoltage = this->cells * UAS::lipoFull;
        emptyVoltage = this->cells * UAS::lipoEmpty;
        break;
    case LIFE:
        break;
    case AGZN:
        break;
    }
}

/**
* Set the battery specificaitons: empty voltage, warning voltage, and full voltage.
* @param specifications of the battery
*/
void UAS::setBatterySpecs(const QString& specs)
{
    if (specs.length() == 0 || specs.contains("%"))
    {
        batteryRemainingEstimateEnabled = false;
        bool ok;
        QString percent = specs;
        percent = percent.remove("%");
        float temp = percent.toFloat(&ok);
        if (ok)
        {
            warnLevelPercent = temp;
        }
        else
        {
            emit textMessageReceived(0, 0, 0, "Could not set battery options, format is wrong");
        }
    }
    else
    {
        batteryRemainingEstimateEnabled = true;
        QString stringList = specs;
        stringList = stringList.remove("V");
        stringList = stringList.remove("v");
        QStringList parts = stringList.split(",");
        if (parts.length() == 3)
        {
            float temp;
            bool ok;
            // Get the empty voltage
            temp = parts.at(0).toFloat(&ok);
            if (ok) emptyVoltage = temp;
            // Get the warning voltage
            temp = parts.at(1).toFloat(&ok);
            if (ok) warnVoltage = temp;
            // Get the full voltage
            temp = parts.at(2).toFloat(&ok);
            if (ok) fullVoltage = temp;
        }
        else
        {
            emit textMessageReceived(0, 0, 0, "Could not set battery options, format is wrong");
        }
    }
}

/**
* @return the battery specifications(empty voltage, warning voltage, full voltage)
*/
QString UAS::getBatterySpecs()
{
    if (batteryRemainingEstimateEnabled)
    {
        return QString("%1V,%2V,%3V").arg(emptyVoltage).arg(warnVoltage).arg(fullVoltage);
    }
    else
    {
        return QString("%1%").arg(warnLevelPercent);
    }
}

/**
* @return the time remaining.
*/
int UAS::calculateTimeRemaining()
{
    quint64 dt = QGC::groundTimeMilliseconds() - startTime;
    double seconds = dt / 1000.0f;
    double voltDifference = startVoltage - currentVoltage;
    if (voltDifference <= 0) voltDifference = 0.00000000001f;
    double dischargePerSecond = voltDifference / seconds;
    int remaining = static_cast<int>((currentVoltage - emptyVoltage) / dischargePerSecond);
    // Can never be below 0
    if (remaining < 0) remaining = 0;
    return remaining;
}

/**
 * @return charge level in percent - 0 - 100
 */
float UAS::getChargeLevel()
{
    if (batteryRemainingEstimateEnabled)
    {
        if (lpVoltage < emptyVoltage)
        {
            chargeLevel = 0.0f;
        }
        else if (lpVoltage > fullVoltage)
        {
            chargeLevel = 100.0f;
        }
        else
        {
            chargeLevel = 100.0f * ((lpVoltage - emptyVoltage)/(fullVoltage - emptyVoltage));
        }
    }
    return chargeLevel;
}

void UAS::startLowBattAlarm()
{
    if (!lowBattAlarm)
    {
        GAudioOutput::instance()->alert(tr("system %1 has low battery").arg(getUASName()));
        QTimer::singleShot(3000, GAudioOutput::instance(), SLOT(startEmergency()));
        lowBattAlarm = true;
    }
}

void UAS::stopLowBattAlarm()
{
    if (lowBattAlarm)
    {
        GAudioOutput::instance()->stopEmergency();
        lowBattAlarm = false;
    }
}