diff options
Diffstat (limited to 'src/modules/ekf_att_pos_estimator/fw_att_pos_estimator_main.cpp')
| -rw-r--r-- | src/modules/ekf_att_pos_estimator/fw_att_pos_estimator_main.cpp | 35 |
1 files changed, 29 insertions, 6 deletions
diff --git a/src/modules/ekf_att_pos_estimator/fw_att_pos_estimator_main.cpp b/src/modules/ekf_att_pos_estimator/fw_att_pos_estimator_main.cpp index 07dfdbd68..35ba96f59 100644 --- a/src/modules/ekf_att_pos_estimator/fw_att_pos_estimator_main.cpp +++ b/src/modules/ekf_att_pos_estimator/fw_att_pos_estimator_main.cpp @@ -244,6 +244,10 @@ private: AttPosEKF *_ekf; + float _velocity_xy_filtered; + float _velocity_z_filtered; + float _airspeed_filtered; + /** * Update our local parameter cache. */ @@ -348,7 +352,10 @@ FixedwingEstimator::FixedwingEstimator() : _accel_valid(false), _mag_valid(false), _mavlink_fd(-1), - _ekf(nullptr) + _ekf(nullptr), + _velocity_xy_filtered(0.0f), + _velocity_z_filtered(0.0f), + _airspeed_filtered(0.0f) { last_run = hrt_absolute_time(); @@ -1062,7 +1069,7 @@ FixedwingEstimator::task_main() warnx("HOME/REF: LA %8.4f,LO %8.4f,ALT %8.2f V: %8.4f %8.4f %8.4f", lat, lon, (double)gps_alt, (double)_ekf->velNED[0], (double)_ekf->velNED[1], (double)_ekf->velNED[2]); warnx("BARO: %8.4f m / ref: %8.4f m", _ekf->baroHgt, _ekf->hgtMea); - warnx("GPS: eph: %8.4f, epv: %8.4f, declination: %8.4f", (double)_gps.eph_m, (double)_gps.epv_m, (double)math::degrees(declination)); + warnx("GPS: eph: %8.4f, epv: %8.4f, declination: %8.4f", (double)_gps.eph, (double)_gps.epv, (double)math::degrees(declination)); _gps_initialized = true; @@ -1271,6 +1278,22 @@ FixedwingEstimator::task_main() _local_pos.z_global = false; _local_pos.yaw = _att.yaw; + _velocity_xy_filtered = 0.95f*_velocity_xy_filtered + 0.05f*sqrtf(_local_pos.vx*_local_pos.vx + _local_pos.vy*_local_pos.vy); + _velocity_z_filtered = 0.95f*_velocity_z_filtered + 0.05f*fabsf(_local_pos.vz); + _airspeed_filtered = 0.95*_airspeed_filtered + + 0.05*_airspeed.true_airspeed_m_s; + + + /* crude land detector for fixedwing only, + * TODO: adapt so that it works for both, maybe move to another location + */ + if (_velocity_xy_filtered < 5 + && _velocity_z_filtered < 10 + && _airspeed_filtered < 10) { + _local_pos.landed = true; + } else { + _local_pos.landed = false; + } + /* lazily publish the local position only once available */ if (_local_pos_pub > 0) { /* publish the attitude setpoint */ @@ -1289,8 +1312,8 @@ FixedwingEstimator::task_main() _global_pos.lat = est_lat; _global_pos.lon = est_lon; _global_pos.time_gps_usec = _gps.time_gps_usec; - _global_pos.eph = _gps.eph_m; - _global_pos.epv = _gps.epv_m; + _global_pos.eph = _gps.eph; + _global_pos.epv = _gps.epv; } if (_local_pos.v_xy_valid) { @@ -1310,8 +1333,8 @@ FixedwingEstimator::task_main() _global_pos.yaw = _local_pos.yaw; - _global_pos.eph = _gps.eph_m; - _global_pos.epv = _gps.epv_m; + _global_pos.eph = _gps.eph; + _global_pos.epv = _gps.epv; _global_pos.timestamp = _local_pos.timestamp; |