Example #1
0
bool
OpenVarioDevice::POV(NMEAInputLine &line, NMEAInfo &info)
{
  /*
   * Type definitions:
   *
   * E: TE vario in m/s
   * P: static pressure in hPa
   * Q: dynamic pressure in Pa
   * R: total pressure in hPa
   * S: true airspeed in km/h
   * T: temperature in deg C
   */

  while (!line.IsEmpty()) {
    char type = line.ReadOneChar();
    if (type == '\0')
      break;

    fixed value;
    if (!line.ReadChecked(value))
      break;

    switch (type) {
      case 'E': {
        info.ProvideTotalEnergyVario(value);
        break;
      }
      case 'P': {
        AtmosphericPressure pressure = AtmosphericPressure::HectoPascal(value);
        info.ProvideStaticPressure(pressure);
        break;
      }
      case 'Q': {
        AtmosphericPressure pressure = AtmosphericPressure::Pascal(value);
        info.ProvideDynamicPressure(pressure);
        break;
      }
      case 'R': {
        AtmosphericPressure pressure = AtmosphericPressure::HectoPascal(value);
        info.ProvidePitotPressure(pressure);
        break;
      }
      case 'S': {
        value = Units::ToSysUnit(value, Unit::KILOMETER_PER_HOUR);
        info.ProvideTrueAirspeed(value);
        break;
      }
      case 'T': {
        info.temperature = CelsiusToKelvin(value);
        info.temperature_available = true;
        break;
      }
    }
  }

  return true;
}
Example #2
0
static bool
ParsePITV4(NMEAInputLine &line, NMEAInfo &info)
{
  fixed value;

  // TE vario [m/s]
  if (line.ReadChecked(value))
    info.ProvideTotalEnergyVario(value);

  return true;
}
Example #3
0
static bool
PZAN2(NMEAInputLine &line, NMEAInfo &info)
{
  fixed vtas, wnet;

  if (line.ReadChecked(vtas))
    info.ProvideTrueAirspeed(Units::ToSysUnit(vtas, Unit::KILOMETER_PER_HOUR));

  if (line.ReadChecked(wnet))
    info.ProvideTotalEnergyVario((wnet - fixed(10000)) / 100);

  return true;
}
Example #4
0
static bool
PZAN2(NMEAInputLine &line, NMEAInfo &info)
{
  fixed vtas, wnet;

  if (line.read_checked(vtas))
    info.ProvideTrueAirspeed(Units::ToSysUnit(vtas, unKiloMeterPerHour));

  if (line.read_checked(wnet))
    info.ProvideTotalEnergyVario((wnet - fixed(10000)) / 100);

  return true;
}
Example #5
0
/**
 * $PWES0,DD,VVVV,MMMM,NNNN,BBBB,SSSS,AAAAA,QQQQQ,IIII,TTTT,UUU,CCCC*CS<CR><LF>
 */
static bool
PWES0(NMEAInputLine &line, NMEAInfo &info)
{
  int i;

  line.Skip(); /* device */

  if (line.ReadChecked(i) && i >= -999 && i <= 999)
    info.ProvideTotalEnergyVario(fixed(i) / 10);

  line.Skip(); /* average vario */

  if (line.ReadChecked(i) && i >= -999 && i <= 999)
    info.ProvideNettoVario(fixed(i) / 10);

  line.Skip(); /* average netto vario */
  line.Skip(); /* speed to fly */

  unsigned altitude;
  if (line.ReadChecked(altitude) && altitude <= 99999)
    info.ProvidePressureAltitude(fixed(altitude));

  if (line.ReadChecked(altitude) && altitude <= 99999)
    info.ProvideBaroAltitudeTrue(fixed(altitude));

  unsigned ias, tas;
  bool have_ias = line.ReadChecked(ias) && ias <= 9999;
  bool have_tas = line.ReadChecked(tas) && tas <= 9999;
  if (have_ias && have_tas)
    info.ProvideBothAirspeeds(Units::ToSysUnit(fixed(ias) / 10,
                                               Unit::KILOMETER_PER_HOUR),
                              Units::ToSysUnit(fixed(tas) / 10,
                                               Unit::KILOMETER_PER_HOUR));

  else if (!have_ias && have_tas)
    info.ProvideTrueAirspeed(Units::ToSysUnit(fixed(tas) / 10,
                                              Unit::KILOMETER_PER_HOUR));

  unsigned voltage;
  if (line.ReadChecked(voltage) && voltage <= 999) {
    info.voltage = fixed(voltage) / 10;
    info.voltage_available.Update(info.clock);
  }

  if (line.ReadChecked(i) && i >= -999 && i <= 999) {
    info.temperature = CelsiusToKelvin(fixed(i) / 10);
    info.temperature_available = true;
  }

  return true;
}
Example #6
0
/**
 * $PWES0,DD,VVVV,MMMM,NNNN,BBBB,SSSS,AAAAA,QQQQQ,IIII,TTTT,UUU,CCCC*CS<CR><LF>
 */
static bool
PWES0(NMEAInputLine &line, NMEAInfo &info)
{
  int i, k;

  line.skip(); /* device */

  if (line.read_checked(i))
    info.ProvideTotalEnergyVario(fixed(i) / 10);

  line.skip(); /* average vario */

  if (line.read_checked(i))
    info.ProvideNettoVario(fixed(i) / 10);

  line.skip(); /* average netto vario */
  line.skip(); /* speed to fly */

  if (line.read_checked(i))
    info.ProvidePressureAltitude(fixed(i));

  if (line.read_checked(i))
    info.ProvideBaroAltitudeTrue(fixed(i));

  bool have_ias = line.read_checked(i);
  bool have_tas = line.read_checked(k);
  if (have_ias && have_tas)
    info.ProvideBothAirspeeds(Units::ToSysUnit(fixed(i) / 10,
                                               Unit::KILOMETER_PER_HOUR),
                              Units::ToSysUnit(fixed(k) / 10,
                                               Unit::KILOMETER_PER_HOUR));

  else if (!have_ias && have_tas)
    info.ProvideTrueAirspeed(Units::ToSysUnit(fixed(k) / 10,
                                              Unit::KILOMETER_PER_HOUR));

  if (line.read_checked(i)) {
    info.voltage = fixed(i) / 10;
    info.voltage_available.Update(info.clock);
  }

  if (line.read_checked(i)) {
    info.temperature = CelsiusToKelvin(fixed(i) / 10);
    info.temperature_available = true;
  }

  return true;
}
Example #7
0
static bool
LXWP0(NMEAInputLine &line, NMEAInfo &info)
{
  /*
  $LXWP0,Y,222.3,1665.5,1.71,,,,,,239,174,10.1

   0 loger_stored (Y/N)
   1 IAS (kph) ----> Condor uses TAS!
   2 baroaltitude (m)
   3-8 vario (m/s) (last 6 measurements in last second)
   9 heading of plane
  10 windcourse (deg)
  11 windspeed (kph)
  */

  line.Skip();

  fixed airspeed;
  bool tas_available = line.ReadChecked(airspeed);
  if (tas_available && (airspeed < fixed(-50) || airspeed > fixed(250)))
    /* implausible */
    return false;

  fixed value;
  if (line.ReadChecked(value))
    /* a dump on a LX7007 has confirmed that the LX sends uncorrected
       altitude above 1013.25hPa here */
    info.ProvidePressureAltitude(value);

  if (tas_available)
    /*
     * Call ProvideTrueAirspeed() after ProvidePressureAltitude() to use
     * the provided altitude (if available)
     */
    info.ProvideTrueAirspeed(Units::ToSysUnit(airspeed, Unit::KILOMETER_PER_HOUR));

  if (line.ReadChecked(value))
    info.ProvideTotalEnergyVario(value);

  line.Skip(6);

  SpeedVector wind;
  if (ReadSpeedVector(line, wind))
    info.ProvideExternalWind(wind);

  return true;
}
Example #8
0
/**
 * Parse a "$D" sentence.
 *
 * Example: "$D,+0,100554,+25,18,+31,,0,-356,+25,+11,115,96*6A"
 */
static bool
LeonardoParseD(NMEAInputLine &line, NMEAInfo &info)
{
  double value;

  // 0 = vario [dm/s]
  if (line.ReadChecked(value))
    info.ProvideTotalEnergyVario(value / 10);

  if (line.Rest().empty())
    /* short "$D" sentence ends after vario */
    return true;

  // 1 = air pressure [Pa]
  if (line.ReadChecked(value))
    info.ProvideStaticPressure(AtmosphericPressure::Pascal(value));

  // 2 = netto vario [dm/s]
  if (line.ReadChecked(value))
    info.ProvideNettoVario(value / 10);

  // 3 = airspeed [km/h]
  /* XXX is that TAS or IAS? */
  if (line.ReadChecked(value))
    info.ProvideTrueAirspeed(Units::ToSysUnit(value, Unit::KILOMETER_PER_HOUR));

  // 4 = temperature [deg C]
  double oat;
  info.temperature_available = line.ReadChecked(oat);
  if (info.temperature_available)
    info.temperature = CelsiusToKelvin(oat);

  // 5 = compass [degrees]
  /* XXX unsupported by XCSoar */

  // 6 = optimal speed [km/h]
  /* XXX unsupported by XCSoar */

  // 7 = equivalent MacCready [cm/s]
  /* XXX unsupported by XCSoar */

  // 8 = wind speed [km/h]
  /* not used here, the "$C" record repeats it together with the
     direction */

  return true;
}
Example #9
0
bool
NMEAParser::PTAS1(NMEAInputLine &line, NMEAInfo &info)
{
    /*
     * $PTAS1,xxx,yyy,zzzzz,aaa*CS<CR><LF>
     *
     * xxx
     * CV or current vario. =vario*10+200 range 0-400(display +/-20.0 knots)
     *
     * yyy
     * AV or average vario. =vario*10+200 range 0-400(display +/-20.0 knots)
     *
     * zzzzz
     * Barometric altitude in feet +2000
     *
     * aaa
     * TAS knots 0-200
     */

    // Parse current vario data
    fixed vario;
    if (line.ReadChecked(vario)) {
        // Properly convert to m/s
        vario = Units::ToSysUnit((vario - fixed(200)) / 10, Unit::KNOTS);
        info.ProvideTotalEnergyVario(vario);
    }

    // Skip average vario data
    line.Skip();

    // Parse barometric altitude
    fixed baro_altitude;
    if (line.ReadChecked(baro_altitude)) {
        // Properly convert to meter
        baro_altitude = Units::ToSysUnit(baro_altitude - fixed(2000), Unit::FEET);
        info.ProvidePressureAltitude(baro_altitude);
    }

    // Parse true airspeed
    fixed vtas;
    if (line.ReadChecked(vtas))
        info.ProvideTrueAirspeed(Units::ToSysUnit(vtas, Unit::KNOTS));

    return true;
}
Example #10
0
/**
 * Parse a "$PDGFTL1" sentence.
 *
 * Example: "$PDGFTL1,2025,2000,250,-14,45,134,28,65,382,153*3D"
 */
static bool
PDGFTL1(NMEAInputLine &line, NMEAInfo &info)
{
  double value;

  //  Baro Altitude QNE(1013.25)     2025     meter        2025 mt
  if (line.ReadChecked(value))
    info.ProvidePressureAltitude(value);

  //  Baro Altitude QNH  2000     meter        2000 mt
  if (line.ReadChecked(value))
    info.ProvideBaroAltitudeTrue(value);

  //  Vario  250      cm/sec       +2,50 m/s
  if (line.ReadChecked(value))
    info.ProvideTotalEnergyVario(value / 100);

  //  Netto Vario  -14      dm/sec       -1,40 m/s
  if (line.ReadChecked(value))
    info.ProvideNettoVario(value / 10);

  //  Indicated Air Speed  45       km/h         45 km/h
  if (line.ReadChecked(value))
    info.ProvideIndicatedAirspeed(Units::ToSysUnit(value, Unit::KILOMETER_PER_HOUR));

  //  Ground Efficiency  134      ratio        13,4 : 1
  line.Skip();

  //  Wind Speed  28       km/h         28 km/h
  //  Wind Direction  65       degree       65 degree
  SpeedVector wind;
  if (ReadSpeedVector(line, wind))
    info.ProvideExternalWind(wind);

  //  Main Lithium Battery Voltage   382      0.01 volts   3,82 volts
  if (line.ReadChecked(value)) {
    info.voltage = value / 100;
    info.voltage_available.Update(info.clock);
  }

  //  Backup AA Battery Voltage      153      0.01 volts   1,53 volts

  return true;
}
Example #11
0
static bool
cLXWP0(NMEAInputLine &line, NMEAInfo &info)
{
  /*
  $LXWP0,Y,222.3,1665.5,1.71,,,,,,239,174,10.1

   0 logger_stored (Y/N)
   1 IAS (kph) ----> Condor uses TAS!
   2 baroaltitude (m)
   3 vario (m/s)
   4-8 unknown
   9 heading of plane
  10 windcourse (deg)
  11 windspeed (kph)
  */

  fixed value;

  line.Skip();

  fixed airspeed;
  bool tas_available = line.ReadChecked(airspeed);

  fixed alt = line.Read(fixed_zero);

  if (tas_available)
    info.ProvideTrueAirspeedWithAltitude(Units::ToSysUnit(airspeed,
                                                               Unit::KILOMETER_PER_HOUR),
                                              alt);

  // ToDo check if QNH correction is needed!
  info.ProvideBaroAltitudeTrue(alt);

  if (line.ReadChecked(value))
    info.ProvideTotalEnergyVario(value);

  line.Skip(6);

  SpeedVector wind;
  if (ReadSpeedVector(line, wind))
    info.ProvideExternalWind(wind);

  return true;
}
Example #12
0
/**
 * $PWES0,DD,VVVV,MMMM,NNNN,BBBB,SSSS,AAAAA,QQQQQ,IIII,TTTT,UUU,CCC*CS<CR><LF>
 */
static bool
PWES0(NMEAInputLine &line, NMEAInfo &info)
{
    int i, k;

    line.skip(); /* device */

    if (line.read_checked(i))
        info.ProvideTotalEnergyVario(fixed(i) / 10);

    line.skip(); /* average vario */

    if (line.read_checked(i))
        info.ProvideNettoVario(fixed(i) / 10);

    line.skip(); /* average netto vario */
    line.skip(); /* speed to fly */

    if (line.read_checked(i))
        info.ProvidePressureAltitude(fixed(i));

    if (line.read_checked(i))
        info.ProvideBaroAltitudeTrue(fixed(i));

    bool have_ias = line.read_checked(i);
    bool have_tas = line.read_checked(k);
    if (have_ias && have_tas)
        info.ProvideBothAirspeeds(Units::ToSysUnit(fixed(i) / 10,
                                  unKiloMeterPerHour),
                                  Units::ToSysUnit(fixed(k) / 10,
                                          unKiloMeterPerHour));

    if (line.read_checked(i)) {
        info.voltage = fixed(i) / 10;
        info.voltage_available.Update(info.clock);
    }

    if (line.read_checked(i)) {
        info.temperature = Units::ToSysUnit(fixed(i) / 10, unGradCelcius);
        info.temperature_available = true;
    }

    return true;
}
Example #13
0
/**
 * Parse a "$C" sentence.
 *
 * Example: "$C,+2025,-7,+18,+25,+29,122,314,314,0,-356,+25,45,T*3D"
 */
static bool
LeonardoParseC(NMEAInputLine &line, NMEAInfo &info)
{
  double value;

  // 0 = altitude [m]
  if (line.ReadChecked(value))
    info.ProvideBaroAltitudeTrue(value);

  // 1 = vario [cm/s]
  if (line.ReadChecked(value))
    info.ProvideTotalEnergyVario(value / 100);

  // 2 = airspeed [km/h]
  /* XXX is that TAS or IAS? */
  if (line.ReadChecked(value))
    info.ProvideTrueAirspeed(Units::ToSysUnit(value, Unit::KILOMETER_PER_HOUR));

  if (line.Rest().empty())
    /* short "$C" sentence ends after airspeed */
    return true;

  // 3 = netto vario [dm/s]
  if (line.ReadChecked(value))
    info.ProvideNettoVario(value / 10);

  // 4 = temperature [deg C]
  double oat;
  info.temperature_available = line.ReadChecked(oat);
  if (info.temperature_available)
    info.temperature = CelsiusToKelvin(oat);

  line.Skip(5);

  // 10 = wind speed [km/h]
  // 11 = wind direction [degrees]
  SpeedVector wind;
  if (ReadSpeedVector(line, wind))
    info.ProvideExternalWind(wind);

  return true;
}
Example #14
0
static bool
PDVDV(NMEAInputLine &line, NMEAInfo &info)
{
  fixed value;

  if (line.read_checked(value))
    info.ProvideTotalEnergyVario(value / 10);

  bool ias_available = line.read_checked(value);
  fixed tas_ratio = line.read(fixed(1024)) / 1024;
  if (ias_available)
    info.ProvideBothAirspeeds(value / 10, value / 10 * tas_ratio);

  //hasVega = true;

  if (line.read_checked(value))
    info.ProvidePressureAltitude(value);

  return true;
}
Example #15
0
/**
 * Parses a PTAS1 sentence (Tasman Instruments proprietary).
 *
 * @param String Input string
 * @param params Parameter array
 * @param nparams Number of parameters
 * @param info NMEA_INFO struct to parse into
 * @return Parsing success
 */
bool
NMEAParser::PTAS1(NMEAInputLine &line, NMEAInfo &info)
{
  fixed wnet;
  if (line.read_checked(wnet))
    info.ProvideTotalEnergyVario(Units::ToSysUnit((wnet - fixed(200)) / 10,
                                                       unKnots));

  line.skip(); // average vario +200

  fixed baralt;
  if (line.read_checked(baralt)) {
    baralt = max(fixed_zero, Units::ToSysUnit(baralt - fixed(2000), unFeet));
    info.ProvidePressureAltitude(baralt);
  }

  fixed vtas;
  if (line.read_checked(vtas))
    info.ProvideTrueAirspeed(Units::ToSysUnit(vtas, unKnots));

  return true;
}
Example #16
0
/*
!w,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11>,<12>,<13>*hh<CR><LF>
<1>  Vector wind direction in degrees
<2>  Vector wind speed in 10ths of meters per second
<3>  Vector wind age in seconds
<4>  Component wind in 10ths of Meters per second + 500 (500 = 0, 495 = 0.5 m/s tailwind)
<5>  True altitude in Meters + 1000
<6>  Instrument QNH setting
<7>  True airspeed in 100ths of Meters per second
<8>  Variometer reading in 10ths of knots + 200
<9>  Averager reading in 10ths of knots + 200
<10> Relative variometer reading in 10ths of knots + 200
<11> Instrument MacCready setting in 10ths of knots
<12> Instrument Ballast setting in percent of capacity
<13> Instrument Bug setting
*hh  Checksum, XOR of all bytes
*/
static bool
cai_w(NMEAInputLine &line, NMEAInfo &info)
{
  SpeedVector wind;
  if (ReadSpeedVector(line, wind))
    info.ProvideExternalWind(wind.Reciprocal());

  line.skip(2);

  fixed value;
  if (line.read_checked(value))
    info.ProvideBaroAltitudeTrue(value - fixed(1000));

  if (line.read_checked(value))
    info.settings.ProvideQNH(value, info.clock);

  if (line.read_checked(value))
    info.ProvideTrueAirspeed(value / 100);

  if (line.read_checked(value))
    info.ProvideTotalEnergyVario(Units::ToSysUnit((value - fixed(200)) / 10,
                                                  unKnots));

  line.skip(2);

  int i;

  if (line.read_checked(i))
    info.settings.ProvideMacCready(Units::ToSysUnit(fixed(i) / 10, unKnots),
                                   info.clock);

  if (line.read_checked(i))
    info.settings.ProvideBallastFraction(fixed(i) / 100, info.clock);

  if (line.read_checked(i))
    info.settings.ProvideBugs(fixed(i) / 100, info.clock);

  return true;
}
Example #17
0
static bool
PDVDV(NMEAInputLine &line, NMEAInfo &info)
{
  int value;

  if (line.ReadChecked(value))
    info.ProvideTotalEnergyVario(fixed(value) / 10);

  bool ias_available = line.ReadChecked(value);
  int tas_ratio = line.Read(1024);
  if (ias_available) {
    const fixed ias = fixed(value) / 10;
    info.ProvideBothAirspeeds(ias, ias * tas_ratio / 1024);
  }

  //hasVega = true;

  if (line.ReadChecked(value))
    info.ProvidePressureAltitude(fixed(value));

  return true;
}
Example #18
0
static bool
VARIO(NMEAInputLine &line, NMEAInfo &info)
{
  // $VARIO,fPressure,fVario,Bat1Volts,Bat2Volts,BatBank,TempSensor1,TempSensor2*CS

  // fVario = the variometer in decimeters per second
  // Bat1Volts = the voltage of the battery in bank 1
  // Bat2Volts = the voltage of the battery in bank 2
  // BatBank = the battery bank in use.
  // TempSensor1 = temperature in ºC of external wireless sensor 1
  // TempSensor2 = temperature in ºC of external wireless sensor 2

  fixed value;
  if (line.read_checked(value))
    info.ProvideStaticPressure(AtmosphericPressure::HectoPascal(value));

  if (line.read_checked(value))
    info.ProvideTotalEnergyVario(value / 10);

  unsigned battery_bank;
  fixed voltage[2];
  if (line.read_checked(voltage[0]) &&
      line.read_checked(voltage[1]) &&
      line.read_checked(battery_bank) &&
      battery_bank != 0 &&
      battery_bank <= 2) {
    info.voltage = voltage[battery_bank - 1];
    info.voltage_available.Update(info.clock);
  }

  if (line.read_checked(value)) {
    info.temperature = Units::ToSysUnit(value, unGradCelcius);
    info.temperature_available = true;
  }

  return true;
}
Example #19
0
/**
 * Parse a "$PILC,PDA1" sentence.
 *
 * Example: "$PILC,PDA1,1489,-3.21,274,15,58*7D"
 */
static bool
ParsePDA1(NMEAInputLine &line, NMEAInfo &info)
{
  fixed value;

  // altitude [m]
  int altitude;
  if (line.ReadChecked(altitude))
    info.ProvideBaroAltitudeTrue(fixed(altitude));

  // total energy vario [m/s]
  if (line.ReadChecked(value))
    info.ProvideTotalEnergyVario(value);

  // wind direction [degrees, kph]
  SpeedVector wind;
  if (ReadSpeedVector(line, wind))
    info.ProvideExternalWind(wind);

  // confidence [0..100]
  // not used

  return true;
}
Example #20
0
/**
 * Parse a "$FLYSEN" sentence.
 *
 * @see http://www.flytec.ch/public/Special%20NMEA%20sentence.pdf
 */
bool
FlytecDevice::ParseFLYSEN(NMEAInputLine &line, NMEAInfo &info)
{
  // Detect firmware/sentence version
  //
  // V or A in field 9  -> 3.31-
  // V or A in field 10 -> 3.32+

  NMEAInputLine line_copy(line);

  line_copy.Skip(8);

  bool has_date_field = false;
  char validity = line_copy.ReadFirstChar();
  if (validity != 'A' && validity != 'V') {
    validity = line_copy.ReadFirstChar();
    if (validity != 'A' && validity != 'V')
      return false;

    has_date_field = true;
  }

  //  Date(ddmmyy),   6 Digits (only in firmware version 3.32+)
  if (has_date_field)
    NMEAParser::ReadDate(line, info.date_time_utc);

  //  Time(hhmmss),   6 Digits

  fixed time;
  if (NMEAParser::ReadTime(line, info.date_time_utc, time) &&
      !NMEAParser::TimeHasAdvanced(time, last_time, info))
    return true;

  if (validity == 'V') {
    // In case of V (void=not valid) GPS data should not be used.
    // GPS altitude, position and speed should be ignored.
    line.Skip(7);

  } else {
    //  Latitude(ddmm.mmm),   8 Digits incl. decimal
    //  N (or S),   1 Digit
    //  Longitude(dddmm.mmm),   9 Digits inc. decimal
    //  E (or W),   1 Digit
    GeoPoint location;
    if (NMEAParser::ReadGeoPoint(line, location)) {
      info.location = location;
      info.location_available.Update(info.clock);
    }

    //  Track (xxx Deg),   3 Digits
    fixed track;
    if (line.ReadChecked(track)) {
      info.track = Angle::Degrees(track);
      info.track_available.Update(info.clock);
    }

    //  Speed over Ground (xxxxx dm/s), 5 Digits
    fixed ground_speed;
    if (line.ReadChecked(ground_speed)) {
      info.ground_speed = ground_speed / 10;
      info.ground_speed_available.Update(info.clock);
    }

    //  GPS altitude (xxxxx meter),           5 Digits
    fixed gps_altitude;
    if (line.ReadChecked(gps_altitude)) {
      info.gps_altitude = gps_altitude;
      info.gps_altitude_available.Update(info.clock);
    }
  }

  //  Validity of 3 D fix A or V,           1 Digit
  line.Skip();

  //  Satellites in Use (0 to 12),          2 Digits
  unsigned satellites_used;
  if (line.ReadChecked(satellites_used)) {
    info.gps.satellites_used = satellites_used;
    info.gps.satellites_used_available.Update(info.clock);
  }

  //  Raw pressure (xxxxxx Pa),  6 Digits
  fixed pressure;
  if (line.ReadChecked(pressure))
    info.ProvideStaticPressure(AtmosphericPressure::Pascal(pressure));

  //  Baro Altitude (xxxxx meter),          5 Digits (-xxxx to xxxxx) (Based on 1013.25hPa)
  fixed baro_altitude;
  if (line.ReadChecked(baro_altitude))
    info.ProvidePressureAltitude(baro_altitude);

  //  Variometer (xxxx cm/s),   4 or 5 Digits (-9999 to 9999)
  fixed vario;
  if (line.ReadChecked(vario))
    info.ProvideTotalEnergyVario(vario / 100);

  //  True airspeed (xxxxx dm/s), 5 Digits
  fixed tas;
  if (line.ReadChecked(tas))
    info.ProvideTrueAirspeed(tas / 10);

  //  Airspeed source P or V,   1 Digit P= pitot, V = Vane wheel
  line.Skip();

  //  Temp. PCB (xxx °C),   3 Digits
  fixed pcb_temperature;
  bool pcb_temperature_available = line.ReadChecked(pcb_temperature);

  //  Temp. Balloon Envelope (xxx °C),      3 Digits
  fixed balloon_temperature;
  bool balloon_temperature_available = line.ReadChecked(balloon_temperature);

  if (balloon_temperature_available) {
    info.temperature = CelsiusToKelvin(balloon_temperature);
    info.temperature_available = true;
  } else if (pcb_temperature_available) {
    info.temperature = CelsiusToKelvin(pcb_temperature);
    info.temperature_available = true;
  }

  //  Battery Capacity Bank 1 (0 to 100%)   3 Digits
  fixed battery_level_1;
  bool battery_level_1_available = line.ReadChecked(battery_level_1);

  //  Battery Capacity Bank 2 (0 to 100%)   3 Digits
  fixed battery_level_2;
  bool battery_level_2_available = line.ReadChecked(battery_level_2);

  if (battery_level_1_available) {
    if (battery_level_2_available)
      info.battery_level = (battery_level_1 + battery_level_2) / 2;
    else
      info.battery_level = battery_level_1;

    info.battery_level_available.Update(info.clock);
  } else if (battery_level_2_available) {
    info.battery_level = battery_level_2;
    info.battery_level_available.Update(info.clock);
  }

  //  Dist. to WP (xxxxxx m),   6 Digits (Max 200000m)
  //  Bearing (xxx Deg),   3 Digits
  //  Speed to fly1 (MC0 xxxxx cm/s),       5 Digits
  //  Speed to fly2 (McC. xxxxx cm/s)       5 Digits
  //  Keypress Code (Experimental empty to 99)     2 Digits

  return true;
}