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Merge remote-tracking branch 'upstream/terrainaltfield' into fwlandingterrain

This commit is contained in:
Thomas Gubler 2014-09-01 11:42:46 +02:00
parent 63e741824c 71a2025f7d
commit 7dd950b01f
1 changed files with 34 additions and 1 deletions
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35
src/modules/ekf_att_pos_estimator/ekf_att_pos_estimator_main.cpp
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@ -58,6 +58,7 @@
#include <drivers/drv_accel.h>
#include <drivers/drv_mag.h>
#include <drivers/drv_baro.h>
#include <drivers/drv_range_finder.h>
#ifdef SENSOR_COMBINED_SUB
#include <uORB/topics/sensor_combined.h>
#endif
@ -171,6 +172,7 @@ private:
#else
int _sensor_combined_sub;
#endif
int _distance_sub; /**< distance measurement */
int _airspeed_sub; /**< airspeed subscription */
int _baro_sub; /**< barometer subscription */
int _gps_sub; /**< GPS subscription */
@ -196,7 +198,8 @@ private:
struct vehicle_global_position_s _global_pos; /**< global vehicle position */
struct vehicle_local_position_s _local_pos; /**< local vehicle position */
struct vehicle_gps_position_s _gps; /**< GPS position */
struct wind_estimate_s _wind; /**< Wind estimate */
struct wind_estimate_s _wind; /**< wind estimate */
struct range_finder_report _distance; /**< distance estimate */
struct gyro_scale _gyro_offsets;
struct accel_scale _accel_offsets;
@ -226,6 +229,7 @@ private:
hrt_abstime _filter_start_time;
hrt_abstime _last_sensor_timestamp;
hrt_abstime _last_run;
hrt_abstime _distance_last_valid;
bool _gyro_valid;
bool _accel_valid;
bool _mag_valid;
@ -342,6 +346,7 @@ FixedwingEstimator::FixedwingEstimator() :
#else
_sensor_combined_sub(-1),
#endif
_distance_sub(-1),
_airspeed_sub(-1),
_baro_sub(-1),
_gps_sub(-1),
@ -399,6 +404,7 @@ FixedwingEstimator::FixedwingEstimator() :
_filter_start_time(0),
_last_sensor_timestamp(0),
_last_run(0),
_distance_last_valid(0),
_gyro_valid(false),
_accel_valid(false),
_mag_valid(false),
@ -549,6 +555,7 @@ FixedwingEstimator::parameters_update()
_ekf->gyroProcessNoise = _parameters.gyro_pnoise;
_ekf->accelProcessNoise = _parameters.acc_pnoise;
_ekf->airspeedMeasurementSigma = _parameters.eas_noise;
_ekf->rngFinderPitch = 0.0f; // XXX base on SENS_BOARD_Y_OFF
}
return OK;
@ -704,6 +711,7 @@ FixedwingEstimator::task_main()
/*
* do subscriptions
*/
_distance_sub = orb_subscribe(ORB_ID(sensor_range_finder));
_baro_sub = orb_subscribe(ORB_ID(sensor_baro0));
_airspeed_sub = orb_subscribe(ORB_ID(airspeed));
_gps_sub = orb_subscribe(ORB_ID(vehicle_gps_position));
@ -753,6 +761,7 @@ FixedwingEstimator::task_main()
bool newHgtData = false;
bool newAdsData = false;
bool newDataMag = false;
bool newRangeData = false;
float posNED[3] = {0.0f, 0.0f, 0.0f}; // North, East Down position (m)
@ -1114,6 +1123,19 @@ FixedwingEstimator::task_main()
newDataMag = false;
}
orb_check(_distance_sub, &newRangeData);
if (newRangeData) {
orb_copy(ORB_ID(sensor_range_finder), _distance_sub, &_distance);
if (_distance.valid) {
_ekf->rngMea = _distance.distance;
_distance_last_valid = _distance.timestamp;
} else {
newRangeData = false;
}
}
/*
* CHECK IF ITS THE RIGHT TIME TO RUN THINGS ALREADY
*/
@ -1334,6 +1356,13 @@ FixedwingEstimator::task_main()
_ekf->fuseVtasData = false;
}
if (newRangeData) {
_ekf->fuseRngData = true;
_ekf->useRangeFinder = true;
_ekf->RecallStates(_ekf->statesAtRngTime, (IMUmsec - 500.0f));
_ekf->FuseRangeFinder();
}
// Output results
math::Quaternion q(_ekf->states[0], _ekf->states[1], _ekf->states[2], _ekf->states[3]);
@ -1447,6 +1476,10 @@ FixedwingEstimator::task_main()
_global_pos.vel_d = _local_pos.vz;
}
/* terrain altitude */
_global_pos.terrain_alt = _ekf->states[22];
_global_pos.terrain_alt_valid = (_distance_last_valid > 0) &&
(hrt_elapsed_time(&_distance_last_valid) < 20 * 1000 * 1000);
_global_pos.yaw = _local_pos.yaw;