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author | Thomas Gubler <thomasgubler@gmail.com> | 2014-08-24 11:14:15 +0200 |
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committer | Thomas Gubler <thomasgubler@gmail.com> | 2014-08-24 11:14:15 +0200 |
commit | 8262739b6219f54e7ea31de93cd81304df311ab9 (patch) | |
tree | 7d64aaab3252306b0925a2f2444b8865ac90cb66 /src | |
parent | 3c10b78e2044ec2cbe36d4de35c7ac8a936521ae (diff) | |
download | px4-firmware-8262739b6219f54e7ea31de93cd81304df311ab9.tar.gz px4-firmware-8262739b6219f54e7ea31de93cd81304df311ab9.tar.bz2 px4-firmware-8262739b6219f54e7ea31de93cd81304df311ab9.zip |
geofence: can select gps instead of global position
Diffstat (limited to 'src')
-rw-r--r-- | src/modules/navigator/geofence.cpp | 23 | ||||
-rw-r--r-- | src/modules/navigator/geofence.h | 14 | ||||
-rw-r--r-- | src/modules/navigator/geofence_params.c | 17 | ||||
-rw-r--r-- | src/modules/navigator/navigator.h | 9 | ||||
-rw-r--r-- | src/modules/navigator/navigator_main.cpp | 38 |
5 files changed, 89 insertions, 12 deletions
diff --git a/src/modules/navigator/geofence.cpp b/src/modules/navigator/geofence.cpp index 7897c7ba0..4a02a0c3f 100644 --- a/src/modules/navigator/geofence.cpp +++ b/src/modules/navigator/geofence.cpp @@ -63,7 +63,8 @@ Geofence::Geofence() : _altitude_max(0), _verticesCount(0), _param_geofence_on(this, "ON"), - _param_altitude_mode(this, "ALTMODE") + _param_altitude_mode(this, "ALTMODE"), + _param_source(this, "SOURCE") { /* Load initial params */ updateParams(); @@ -85,6 +86,26 @@ bool Geofence::inside(const struct vehicle_global_position_s &global_position, f return inside(global_position.lat, global_position.lon, baro_altitude_amsl); } + +bool Geofence::inside(const struct vehicle_global_position_s &global_position, + const struct vehicle_gps_position_s &gps_position,float baro_altitude_amsl) { + if (getAltitudeMode() == Geofence::GF_ALT_MODE_WGS84) { + if (getSource() == Geofence::GF_SOURCE_GLOBALPOS) { + return inside(global_position); + } else { + return inside((double)gps_position.lat * 1.0e-7, (double)gps_position.lon * 1.0e-7, + (double)gps_position.alt * 1.0e-3); + } + } else { + if (getSource() == Geofence::GF_SOURCE_GLOBALPOS) { + return inside(global_position, baro_altitude_amsl); + } else { + return inside((double)gps_position.lat * 1.0e-7, (double)gps_position.lon * 1.0e-7, + baro_altitude_amsl); + } + } +} + bool Geofence::inside(double lat, double lon, float altitude) { /* Return true if geofence is disabled */ diff --git a/src/modules/navigator/geofence.h b/src/modules/navigator/geofence.h index e2c0f08d8..91c74572e 100644 --- a/src/modules/navigator/geofence.h +++ b/src/modules/navigator/geofence.h @@ -43,6 +43,7 @@ #include <uORB/topics/fence.h> #include <uORB/topics/vehicle_global_position.h> +#include <uORB/topics/vehicle_gps_position.h> #include <uORB/topics/sensor_combined.h> #include <controllib/blocks.hpp> #include <controllib/block/BlockParam.hpp> @@ -57,10 +58,16 @@ public: /* Altitude mode, corresponding to the param GF_ALTMODE */ enum { - GF_ALT_MODE_GPS = 0, + GF_ALT_MODE_WGS84 = 0, GF_ALT_MODE_AMSL = 1 }; + /* Source, corresponding to the param GF_SOURCE */ + enum { + GF_SOURCE_GLOBALPOS = 0, + GF_SOURCE_GPS = 1 + }; + /** * Return whether system is inside geofence. * @@ -71,6 +78,8 @@ public: bool inside(const struct vehicle_global_position_s &global_position); bool inside(const struct vehicle_global_position_s &global_position, float baro_altitude_amsl); bool inside(double lat, double lon, float altitude); + bool inside(const struct vehicle_global_position_s &global_position, + const struct vehicle_gps_position_s &gps_position,float baro_altitude_amsl); int clearDm(); @@ -88,6 +97,8 @@ public: bool isEmpty() {return _verticesCount == 0;} int getAltitudeMode() { return _param_altitude_mode.get(); } + + int getSource() { return _param_source.get(); } private: orb_advert_t _fence_pub; /**< publish fence topic */ @@ -100,6 +111,7 @@ private: /* Params */ control::BlockParamInt _param_geofence_on; control::BlockParamInt _param_altitude_mode; + control::BlockParamInt _param_source; }; diff --git a/src/modules/navigator/geofence_params.c b/src/modules/navigator/geofence_params.c index 29b42cd54..32902ee97 100644 --- a/src/modules/navigator/geofence_params.c +++ b/src/modules/navigator/geofence_params.c @@ -63,10 +63,23 @@ PARAM_DEFINE_INT32(GF_ON, 1); * Geofence altitude mode * * Select which altitude reference should be used - * 0 = GPS, 1 = AMSL + * 0 = WGS84, 1 = AMSL * * @min 0 * @max 1 * @group Geofence */ -PARAM_DEFINE_INT32(GF_ALTMODE, 1); +PARAM_DEFINE_INT32(GF_ALTMODE, 0); + +/** + * Geofence source + * + * Select which position source should be used. Selecting GPS instead of global position makes sure that there is + * no dependence on the position estimator + * 0 = global position, 1 = GPS + * + * @min 0 + * @max 1 + * @group Geofence + */ +PARAM_DEFINE_INT32(GF_SOURCE, 0); diff --git a/src/modules/navigator/navigator.h b/src/modules/navigator/navigator.h index 709e3e724..840b43f1b 100644 --- a/src/modules/navigator/navigator.h +++ b/src/modules/navigator/navigator.h @@ -51,6 +51,7 @@ #include <uORB/topics/vehicle_control_mode.h> #include <uORB/topics/position_setpoint_triplet.h> #include <uORB/topics/vehicle_global_position.h> +#include <uORB/topics/vehicle_gps_position.h> #include <uORB/topics/parameter_update.h> #include <uORB/topics/mission_result.h> #include <uORB/topics/vehicle_attitude_setpoint.h> @@ -129,6 +130,7 @@ public: struct vehicle_status_s* get_vstatus() { return &_vstatus; } struct vehicle_control_mode_s* get_control_mode() { return &_control_mode; } struct vehicle_global_position_s* get_global_position() { return &_global_pos; } + struct vehicle_gps_position_s* get_gps_position() { return &_gps_pos; } struct sensor_combined_s* get_sensor_combined() { return &_sensor_combined; } struct home_position_s* get_home_position() { return &_home_pos; } struct position_setpoint_triplet_s* get_position_setpoint_triplet() { return &_pos_sp_triplet; } @@ -152,6 +154,7 @@ private: int _mavlink_fd; /**< the file descriptor to send messages over mavlink */ int _global_pos_sub; /**< global position subscription */ + int _gps_pos_sub; /**< gps position subscription */ int _sensor_combined_sub; /**< sensor combined subscription */ int _home_pos_sub; /**< home position subscription */ int _vstatus_sub; /**< vehicle status subscription */ @@ -171,6 +174,7 @@ private: vehicle_status_s _vstatus; /**< vehicle status */ vehicle_control_mode_s _control_mode; /**< vehicle control mode */ vehicle_global_position_s _global_pos; /**< global vehicle position */ + vehicle_gps_position_s _gps_pos; /**< gps position */ sensor_combined_s _sensor_combined; /**< sensor values */ home_position_s _home_pos; /**< home position for RTL */ mission_item_s _mission_item; /**< current mission item */ @@ -217,6 +221,11 @@ private: void global_position_update(); /** + * Retrieve gps position + */ + void gps_position_update(); + + /** * Retrieve sensor values */ void sensor_combined_update(); diff --git a/src/modules/navigator/navigator_main.cpp b/src/modules/navigator/navigator_main.cpp index c569ee7b5..81ceaaca2 100644 --- a/src/modules/navigator/navigator_main.cpp +++ b/src/modules/navigator/navigator_main.cpp @@ -100,6 +100,7 @@ Navigator::Navigator() : _navigator_task(-1), _mavlink_fd(-1), _global_pos_sub(-1), + _gps_pos_sub(-1), _home_pos_sub(-1), _vstatus_sub(-1), _capabilities_sub(-1), @@ -114,6 +115,7 @@ Navigator::Navigator() : _vstatus{}, _control_mode{}, _global_pos{}, + _gps_pos{}, _sensor_combined{}, _home_pos{}, _mission_item{}, @@ -188,6 +190,12 @@ Navigator::global_position_update() } void +Navigator::gps_position_update() +{ + orb_copy(ORB_ID(vehicle_gps_position), _gps_pos_sub, &_gps_pos); +} + +void Navigator::sensor_combined_update() { orb_copy(ORB_ID(sensor_combined), _sensor_combined_sub, &_sensor_combined); @@ -263,6 +271,7 @@ Navigator::task_main() /* do subscriptions */ _global_pos_sub = orb_subscribe(ORB_ID(vehicle_global_position)); + _gps_pos_sub = orb_subscribe(ORB_ID(vehicle_gps_position)); _sensor_combined_sub = orb_subscribe(ORB_ID(sensor_combined)); _capabilities_sub = orb_subscribe(ORB_ID(navigation_capabilities)); _vstatus_sub = orb_subscribe(ORB_ID(vehicle_status)); @@ -277,6 +286,7 @@ Navigator::task_main() vehicle_status_update(); vehicle_control_mode_update(); global_position_update(); + gps_position_update(); sensor_combined_update(); home_position_update(); navigation_capabilities_update(); @@ -289,7 +299,7 @@ Navigator::task_main() const hrt_abstime mavlink_open_interval = 500000; /* wakeup source(s) */ - struct pollfd fds[7]; + struct pollfd fds[8]; /* Setup of loop */ fds[0].fd = _global_pos_sub; @@ -306,6 +316,8 @@ Navigator::task_main() fds[5].events = POLLIN; fds[6].fd = _sensor_combined_sub; fds[6].events = POLLIN; + fds[7].fd = _gps_pos_sub; + fds[7].events = POLLIN; while (!_task_should_exit) { @@ -330,6 +342,16 @@ Navigator::task_main() _mavlink_fd = open(MAVLINK_LOG_DEVICE, 0); } + bool have_geofence_position_data = false; + + /* gps updated */ + if (fds[7].revents & POLLIN) { + gps_position_update(); + if (_geofence.getSource() == Geofence::GF_SOURCE_GPS) { + have_geofence_position_data = true; + } + } + /* sensors combined updated */ if (fds[6].revents & POLLIN) { sensor_combined_update(); @@ -364,14 +386,14 @@ Navigator::task_main() /* global position updated */ if (fds[0].revents & POLLIN) { global_position_update(); - - /* Check geofence violation */ - bool inside = false; - if (_geofence.getAltitudeMode() == Geofence::GF_ALT_MODE_GPS) { - inside = _geofence.inside(_global_pos); - } else { - inside = _geofence.inside(_global_pos, _sensor_combined.baro_alt_meter); + if (_geofence.getSource() == Geofence::GF_SOURCE_GLOBALPOS) { + have_geofence_position_data = true; } + } + + /* Check geofence violation */ + if (have_geofence_position_data) { + bool inside = _geofence.inside(_global_pos, _gps_pos, _sensor_combined.baro_alt_meter); if (!inside) { /* inform other apps via the sp triplet */ _pos_sp_triplet.geofence_violated = true; |