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author | Lorenz Meier <lm@inf.ethz.ch> | 2014-03-23 16:56:07 +0100 |
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committer | Lorenz Meier <lm@inf.ethz.ch> | 2014-03-23 16:56:07 +0100 |
commit | 42bba678939a58e59282d4c63dbdef53f962e0ed (patch) | |
tree | cb9860460c4c2d492fd3a2ddd76715e0580d2dc0 /src | |
parent | d1e2e855a3c4b7ba07b91988238e09fc67d2effa (diff) | |
download | px4-firmware-42bba678939a58e59282d4c63dbdef53f962e0ed.tar.gz px4-firmware-42bba678939a58e59282d4c63dbdef53f962e0ed.tar.bz2 px4-firmware-42bba678939a58e59282d4c63dbdef53f962e0ed.zip |
Move changes regarding the filtered airspeed consistently across sensors, use actual air temperature instead of board temperature
Diffstat (limited to 'src')
-rw-r--r-- | src/drivers/ets_airspeed/ets_airspeed.cpp | 5 | ||||
-rw-r--r-- | src/modules/sensors/sensors.cpp | 6 | ||||
-rw-r--r-- | src/modules/uORB/topics/differential_pressure.h | 2 |
3 files changed, 10 insertions, 3 deletions
diff --git a/src/drivers/ets_airspeed/ets_airspeed.cpp b/src/drivers/ets_airspeed/ets_airspeed.cpp index d27ab9727..d873a1132 100644 --- a/src/drivers/ets_airspeed/ets_airspeed.cpp +++ b/src/drivers/ets_airspeed/ets_airspeed.cpp @@ -176,11 +176,14 @@ ETSAirspeed::collect() _max_differential_pressure_pa = diff_pres_pa; } - // XXX we may want to smooth out the readings to remove noise. differential_pressure_s report; report.timestamp = hrt_absolute_time(); report.error_count = perf_event_count(_comms_errors); report.differential_pressure_pa = (float)diff_pres_pa; + + // XXX we may want to smooth out the readings to remove noise. + report.differential_pressure_filtered_pa = (float)diff_pres_pa; + report.temperature = -1000.0f; report.voltage = 0; report.max_differential_pressure_pa = _max_differential_pressure_pa; diff --git a/src/modules/sensors/sensors.cpp b/src/modules/sensors/sensors.cpp index 91a8d5670..13afe27c8 100644 --- a/src/modules/sensors/sensors.cpp +++ b/src/modules/sensors/sensors.cpp @@ -1031,10 +1031,12 @@ Sensors::diff_pres_poll(struct sensor_combined_s &raw) raw.differential_pressure_timestamp = _diff_pres.timestamp; raw.differential_pressure_filtered_pa = _diff_pres.differential_pressure_filtered_pa; + float air_temperature_celcius = (_diff_pres.temperature > -300.0f) ? _diff_pres.temperature : (raw.baro_temp_celcius - PCB_TEMP_ESTIMATE_DEG); + _airspeed.timestamp = _diff_pres.timestamp; _airspeed.indicated_airspeed_m_s = calc_indicated_airspeed(_diff_pres.differential_pressure_filtered_pa); _airspeed.true_airspeed_m_s = calc_true_airspeed(_diff_pres.differential_pressure_filtered_pa + raw.baro_pres_mbar * 1e2f, - raw.baro_pres_mbar * 1e2f, raw.baro_temp_celcius - PCB_TEMP_ESTIMATE_DEG); + raw.baro_pres_mbar * 1e2f, air_temperature_celcius); /* announce the airspeed if needed, just publish else */ if (_airspeed_pub > 0) { @@ -1239,6 +1241,8 @@ Sensors::adc_poll(struct sensor_combined_s &raw) _diff_pres.timestamp = t; _diff_pres.differential_pressure_pa = diff_pres_pa; + _diff_pres.differential_pressure_filtered_pa = diff_pres_pa; + _diff_pres.temperature = -1000.0f; _diff_pres.voltage = voltage; /* announce the airspeed if needed, just publish else */ diff --git a/src/modules/uORB/topics/differential_pressure.h b/src/modules/uORB/topics/differential_pressure.h index 3592c023c..ff88b04c6 100644 --- a/src/modules/uORB/topics/differential_pressure.h +++ b/src/modules/uORB/topics/differential_pressure.h @@ -58,7 +58,7 @@ struct differential_pressure_s { float differential_pressure_filtered_pa; /**< Low pass filtered differential pressure reading */ float max_differential_pressure_pa; /**< Maximum differential pressure reading */ float voltage; /**< Voltage from analog airspeed sensors (voltage divider already compensated) */ - float temperature; /**< Temperature provided by sensor */ + float temperature; /**< Temperature provided by sensor, -1000.0f if unknown */ }; |