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Merge pull request #1213 from PX4/obcfailsafe 

Obc failsafe
This commit is contained in:
Lorenz Meier 2014-09-30 14:50:26 +02:00
parent 8ced6bb49b d11f05b12c
commit 76e9710d76
36 changed files with 2268 additions and 141 deletions
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10
src/drivers/px4io/px4io.cpp
View File

@ -295,6 +295,7 @@ private:
float _battery_amp_bias; ///< current sensor bias
float _battery_mamphour_total;///< amp hours consumed so far
uint64_t _battery_last_timestamp;///< last amp hour calculation timestamp
bool _cb_flighttermination; ///< true if the flight termination circuit breaker is enabled
#ifdef CONFIG_ARCH_BOARD_PX4FMU_V1
bool _dsm_vcc_ctl; ///< true if relay 1 controls DSM satellite RX power
@ -515,7 +516,8 @@ PX4IO::PX4IO(device::Device *interface) :
_battery_amp_per_volt(90.0f / 5.0f), // this matches the 3DR current sensor
_battery_amp_bias(0),
_battery_mamphour_total(0),
_battery_last_timestamp(0)
_battery_last_timestamp(0),
_cb_flighttermination(true)
#ifdef CONFIG_ARCH_BOARD_PX4FMU_V1
, _dsm_vcc_ctl(false)
#endif
@ -1051,6 +1053,9 @@ PX4IO::task_main()
}
}
/* Update Circuit breakers */
_cb_flighttermination = circuit_breaker_enabled("CBRK_FLIGHTTERM", CBRK_FLIGHTTERM_KEY);
}
}
@ -1169,7 +1174,8 @@ PX4IO::io_set_arming_state()
clear |= PX4IO_P_SETUP_ARMING_LOCKDOWN;
}
if (armed.force_failsafe) {
/* Do not set failsafe if circuit breaker is enabled */
if (armed.force_failsafe && !_cb_flighttermination) {
set |= PX4IO_P_SETUP_ARMING_FORCE_FAILSAFE;
} else {
clear |= PX4IO_P_SETUP_ARMING_FORCE_FAILSAFE;

238
src/modules/commander/commander.cpp
View File

@ -128,8 +128,6 @@ extern struct system_load_s system_load;
#define POSITION_TIMEOUT (2 * 1000 * 1000) /**< consider the local or global position estimate invalid after 600ms */
#define FAILSAFE_DEFAULT_TIMEOUT (3 * 1000 * 1000) /**< hysteresis time - the failsafe will trigger after 3 seconds in this state */
#define RC_TIMEOUT 500000
#define DL_TIMEOUT (10 * 1000 * 1000)
#define OFFBOARD_TIMEOUT 500000
#define DIFFPRESS_TIMEOUT 2000000
@ -555,10 +553,35 @@ bool handle_command(struct vehicle_status_s *status_local, const struct safety_s
if (cmd->param1 > 0.5f) {
//XXX update state machine?
armed_local->force_failsafe = true;
warnx("forcing failsafe");
warnx("forcing failsafe (termination)");
} else {
armed_local->force_failsafe = false;
warnx("disabling failsafe");
warnx("disabling failsafe (termination)");
}
/* param2 is currently used for other failsafe modes */
status_local->engine_failure_cmd = false;
status_local->data_link_lost_cmd = false;
status_local->gps_failure_cmd = false;
status_local->rc_signal_lost_cmd = false;
if ((int)cmd->param2 <= 0) {
/* reset all commanded failure modes */
warnx("reset all non-flighttermination failsafe commands");
} else if ((int)cmd->param2 == 1) {
/* trigger engine failure mode */
status_local->engine_failure_cmd = true;
warnx("engine failure mode commanded");
} else if ((int)cmd->param2 == 2) {
/* trigger data link loss mode */
status_local->data_link_lost_cmd = true;
warnx("data link loss mode commanded");
} else if ((int)cmd->param2 == 3) {
/* trigger gps loss mode */
status_local->gps_failure_cmd = true;
warnx("gps loss mode commanded");
} else if ((int)cmd->param2 == 4) {
/* trigger rc loss mode */
status_local->rc_signal_lost_cmd = true;
warnx("rc loss mode commanded");
}
cmd_result = VEHICLE_CMD_RESULT_ACCEPTED;
}
@ -659,6 +682,12 @@ int commander_thread_main(int argc, char *argv[])
param_t _param_takeoff_alt = param_find("NAV_TAKEOFF_ALT");
param_t _param_enable_parachute = param_find("NAV_PARACHUTE_EN");
param_t _param_enable_datalink_loss = param_find("COM_DL_LOSS_EN");
param_t _param_datalink_loss_timeout = param_find("COM_DL_LOSS_T");
param_t _param_rc_loss_timeout = param_find("COM_RC_LOSS_T");
param_t _param_datalink_regain_timeout = param_find("COM_DL_REG_T");
param_t _param_ef_throttle_thres = param_find("COM_EF_THROT");
param_t _param_ef_current2throttle_thres = param_find("COM_EF_C2T");
param_t _param_ef_time_thres = param_find("COM_EF_TIME");
/* welcome user */
warnx("starting");
@ -746,6 +775,8 @@ int commander_thread_main(int argc, char *argv[])
// CIRCUIT BREAKERS
status.circuit_breaker_engaged_power_check = false;
status.circuit_breaker_engaged_airspd_check = false;
status.circuit_breaker_engaged_enginefailure_check = false;
status.circuit_breaker_engaged_gpsfailure_check = false;
/* publish initial state */
status_pub = orb_advertise(ORB_ID(vehicle_status), &status);
@ -851,11 +882,13 @@ int commander_thread_main(int argc, char *argv[])
/* Subscribe to telemetry status topics */
int telemetry_subs[TELEMETRY_STATUS_ORB_ID_NUM];
uint64_t telemetry_last_heartbeat[TELEMETRY_STATUS_ORB_ID_NUM];
uint64_t telemetry_last_dl_loss[TELEMETRY_STATUS_ORB_ID_NUM];
bool telemetry_lost[TELEMETRY_STATUS_ORB_ID_NUM];
for (int i = 0; i < TELEMETRY_STATUS_ORB_ID_NUM; i++) {
telemetry_subs[i] = orb_subscribe(telemetry_status_orb_id[i]);
telemetry_last_heartbeat[i] = 0;
telemetry_last_dl_loss[i] = 0;
telemetry_lost[i] = true;
}
@ -941,6 +974,15 @@ int commander_thread_main(int argc, char *argv[])
transition_result_t arming_ret;
int32_t datalink_loss_enabled = false;
int32_t datalink_loss_timeout = 10;
float rc_loss_timeout = 0.5;
int32_t datalink_regain_timeout = 0;
/* Thresholds for engine failure detection */
int32_t ef_throttle_thres = 1.0f;
int32_t ef_current2throttle_thres = 0.0f;
int32_t ef_time_thres = 1000.0f;
uint64_t timestamp_engine_healthy = 0; /**< absolute time when engine was healty */
/* check which state machines for changes, clear "changed" flag */
bool arming_state_changed = false;
@ -988,8 +1030,14 @@ int commander_thread_main(int argc, char *argv[])
param_get(_param_system_id, &(status.system_id));
param_get(_param_component_id, &(status.component_id));
status.circuit_breaker_engaged_power_check = circuit_breaker_enabled("CBRK_SUPPLY_CHK", CBRK_SUPPLY_CHK_KEY);
status.circuit_breaker_engaged_airspd_check = circuit_breaker_enabled("CBRK_AIRSPD_CHK", CBRK_AIRSPD_CHK_KEY);
status.circuit_breaker_engaged_power_check =
circuit_breaker_enabled("CBRK_SUPPLY_CHK", CBRK_SUPPLY_CHK_KEY);
status.circuit_breaker_engaged_airspd_check =
circuit_breaker_enabled("CBRK_AIRSPD_CHK", CBRK_AIRSPD_CHK_KEY);
status.circuit_breaker_engaged_enginefailure_check =
circuit_breaker_enabled("CBRK_ENGINEFAIL", CBRK_ENGINEFAIL_KEY);
status.circuit_breaker_engaged_gpsfailure_check =
circuit_breaker_enabled("CBRK_GPSFAIL", CBRK_GPSFAIL_KEY);
status_changed = true;
@ -1001,6 +1049,12 @@ int commander_thread_main(int argc, char *argv[])
param_get(_param_takeoff_alt, &takeoff_alt);
param_get(_param_enable_parachute, &parachute_enabled);
param_get(_param_enable_datalink_loss, &datalink_loss_enabled);
param_get(_param_datalink_loss_timeout, &datalink_loss_timeout);
param_get(_param_rc_loss_timeout, &rc_loss_timeout);
param_get(_param_datalink_regain_timeout, &datalink_regain_timeout);
param_get(_param_ef_throttle_thres, &ef_throttle_thres);
param_get(_param_ef_current2throttle_thres, &ef_current2throttle_thres);
param_get(_param_ef_time_thres, &ef_time_thres);
}
orb_check(sp_man_sub, &updated);
@ -1041,7 +1095,7 @@ int commander_thread_main(int argc, char *argv[])
if (mavlink_fd &&
telemetry_last_heartbeat[i] == 0 &&
telemetry.heartbeat_time > 0 &&
hrt_elapsed_time(&telemetry.heartbeat_time) < DL_TIMEOUT) {
hrt_elapsed_time(&telemetry.heartbeat_time) < datalink_loss_timeout * 1e6) {
(void)rc_calibration_check(mavlink_fd);
}
@ -1054,6 +1108,25 @@ int commander_thread_main(int argc, char *argv[])
if (updated) {
orb_copy(ORB_ID(sensor_combined), sensor_sub, &sensors);
/* Check if the barometer is healthy and issue a warning in the GCS if not so.
* Because the barometer is used for calculating AMSL altitude which is used to ensure
* vertical separation from other airtraffic the operator has to know when the
* barometer is inoperational.
* */
if (hrt_elapsed_time(&sensors.baro_timestamp) < FAILSAFE_DEFAULT_TIMEOUT) {
/* handle the case where baro was regained */
if (status.barometer_failure) {
status.barometer_failure = false;
status_changed = true;
mavlink_log_critical(mavlink_fd, "baro healthy");
}
} else {
if (!status.barometer_failure) {
status.barometer_failure = true;
status_changed = true;
mavlink_log_critical(mavlink_fd, "baro failed");
}
}
}
orb_check(diff_pres_sub, &updated);
@ -1140,8 +1213,6 @@ int commander_thread_main(int argc, char *argv[])
check_valid(global_position.timestamp, POSITION_TIMEOUT, eph_good, &(status.condition_global_position_valid), &status_changed);
/* check if GPS fix is ok */
/* update home position */
if (!status.condition_home_position_valid && status.condition_global_position_valid && !armed.armed &&
(global_position.eph < eph_threshold) && (global_position.epv < epv_threshold)) {
@ -1353,15 +1424,51 @@ int commander_thread_main(int argc, char *argv[])
globallocalconverter_init((double)gps_position.lat * 1.0e-7, (double)gps_position.lon * 1.0e-7, (float)gps_position.alt * 1.0e-3f, hrt_absolute_time());
}
/* check if GPS fix is ok */
if (status.circuit_breaker_engaged_gpsfailure_check ||
(gps_position.fix_type >= 3 &&
hrt_elapsed_time(&gps_position.timestamp_position) < FAILSAFE_DEFAULT_TIMEOUT)) {
/* handle the case where gps was regained */
if (status.gps_failure) {
status.gps_failure = false;
status_changed = true;
mavlink_log_critical(mavlink_fd, "gps regained");
}
} else {
if (!status.gps_failure) {
status.gps_failure = true;
status_changed = true;
mavlink_log_critical(mavlink_fd, "gps fix lost");
}
}
/* start mission result check */
orb_check(mission_result_sub, &updated);
if (updated) {
orb_copy(ORB_ID(mission_result), mission_result_sub, &mission_result);
/* Check for geofence violation */
if (armed.armed && (mission_result.geofence_violated || mission_result.flight_termination)) {
//XXX: make this configurable to select different actions (e.g. navigation modes)
/* this will only trigger if geofence is activated via param and a geofence file is present, also there is a circuit breaker to disable the actual flight termination in the px4io driver */
armed.force_failsafe = true;
status_changed = true;
static bool flight_termination_printed = false;
if (!flight_termination_printed) {
warnx("Flight termination because of navigator request or geofence");
mavlink_log_critical(mavlink_fd, "GF violation: flight termination");
flight_termination_printed = true;
}
if (counter % (1000000 / COMMANDER_MONITORING_INTERVAL) == 0 ) {
mavlink_log_critical(mavlink_fd, "GF violation: flight termination");
}
} // no reset is done here on purpose, on geofence violation we want to stay in flighttermination
}
/* RC input check */
if (!status.rc_input_blocked && sp_man.timestamp != 0 && hrt_absolute_time() < sp_man.timestamp + RC_TIMEOUT) {
if (!status.rc_input_blocked && sp_man.timestamp != 0 &&
hrt_absolute_time() < sp_man.timestamp + (uint64_t)(rc_loss_timeout * 1e6f)) {
/* handle the case where RC signal was regained */
if (!status.rc_signal_found_once) {
status.rc_signal_found_once = true;
@ -1472,15 +1579,25 @@ int commander_thread_main(int argc, char *argv[])
/* data links check */
bool have_link = false;
for (int i = 0; i < TELEMETRY_STATUS_ORB_ID_NUM; i++) {
if (telemetry_last_heartbeat[i] != 0 && hrt_elapsed_time(&telemetry_last_heartbeat[i]) < DL_TIMEOUT) {
/* handle the case where data link was regained */
if (telemetry_lost[i]) {
if (telemetry_last_heartbeat[i] != 0 &&
hrt_elapsed_time(&telemetry_last_heartbeat[i]) < datalink_loss_timeout * 1e6) {
/* handle the case where data link was regained,
* accept datalink as healthy only after datalink_regain_timeout seconds
* */
if (telemetry_lost[i] &&
hrt_elapsed_time(&telemetry_last_dl_loss[i]) > datalink_regain_timeout * 1e6) {
mavlink_log_critical(mavlink_fd, "data link %i regained", i);
telemetry_lost[i] = false;
have_link = true;
} else if (!telemetry_lost[i]) {
/* telemetry was healthy also in last iteration
* we don't have to check a timeout */
have_link = true;
}
have_link = true;
} else {
telemetry_last_dl_loss[i] = hrt_absolute_time();
if (!telemetry_lost[i]) {
mavlink_log_critical(mavlink_fd, "data link %i lost", i);
telemetry_lost[i] = true;
@ -1499,10 +1616,40 @@ int commander_thread_main(int argc, char *argv[])
if (!status.data_link_lost) {
mavlink_log_critical(mavlink_fd, "ALL DATA LINKS LOST");
status.data_link_lost = true;
status.data_link_lost_counter++;
status_changed = true;
}
}
/* Check engine failure
* only for fixed wing for now
*/
if (!status.circuit_breaker_engaged_enginefailure_check &&
status.is_rotary_wing == false &&
armed.armed &&
((actuator_controls.control[3] > ef_throttle_thres &&
battery.current_a/actuator_controls.control[3] <
ef_current2throttle_thres) ||
(status.engine_failure))) {
/* potential failure, measure time */
if (timestamp_engine_healthy > 0 &&
hrt_elapsed_time(&timestamp_engine_healthy) >
ef_time_thres * 1e6 &&
!status.engine_failure) {
status.engine_failure = true;
status_changed = true;
mavlink_log_critical(mavlink_fd, "Engine Failure");
}
} else {
/* no failure reset flag */
timestamp_engine_healthy = hrt_absolute_time();
if (status.engine_failure) {
status.engine_failure = false;
status_changed = true;
}
}
/* handle commands last, as the system needs to be updated to handle them */
orb_check(cmd_sub, &updated);
@ -1516,6 +1663,53 @@ int commander_thread_main(int argc, char *argv[])
}
}
/* Check for failure combinations which lead to flight termination */
if (armed.armed) {
/* At this point the data link and the gps system have been checked
* If we are not in a manual (RC stick controlled mode)
* and both failed we want to terminate the flight */
if (status.main_state != MAIN_STATE_MANUAL &&
status.main_state != MAIN_STATE_ACRO &&
status.main_state != MAIN_STATE_ALTCTL &&
status.main_state != MAIN_STATE_POSCTL &&
((status.data_link_lost && status.gps_failure) ||
(status.data_link_lost_cmd && status.gps_failure_cmd))) {
armed.force_failsafe = true;
status_changed = true;
static bool flight_termination_printed = false;
if (!flight_termination_printed) {
warnx("Flight termination because of data link loss && gps failure");
mavlink_log_critical(mavlink_fd, "DL and GPS lost: flight termination");
flight_termination_printed = true;
}
if (counter % (1000000 / COMMANDER_MONITORING_INTERVAL) == 0 ) {
mavlink_log_critical(mavlink_fd, "DL and GPS lost: flight termination");
}
}
/* At this point the rc signal and the gps system have been checked
* If we are in manual (controlled with RC):
* if both failed we want to terminate the flight */
if ((status.main_state == MAIN_STATE_ACRO ||
status.main_state == MAIN_STATE_MANUAL ||
status.main_state == MAIN_STATE_ALTCTL ||
status.main_state == MAIN_STATE_POSCTL) &&
((status.rc_signal_lost && status.gps_failure) ||
(status.rc_signal_lost_cmd && status.gps_failure_cmd))) {
armed.force_failsafe = true;
status_changed = true;
static bool flight_termination_printed = false;
if (!flight_termination_printed) {
warnx("Flight termination because of RC signal loss && gps failure");
flight_termination_printed = true;
}
if (counter % (1000000 / COMMANDER_MONITORING_INTERVAL) == 0 ) {
mavlink_log_critical(mavlink_fd, "RC and GPS lost: flight termination");
}
}
}
hrt_abstime t1 = hrt_absolute_time();
/* print new state */
@ -1557,7 +1751,8 @@ int commander_thread_main(int argc, char *argv[])
/* now set navigation state according to failsafe and main state */
bool nav_state_changed = set_nav_state(&status, (bool)datalink_loss_enabled,
mission_result.finished);
mission_result.finished,
mission_result.stay_in_failsafe);
// TODO handle mode changes by commands
if (main_state_changed) {
@ -1997,6 +2192,7 @@ set_control_mode()
case NAVIGATION_STATE_AUTO_LOITER:
case NAVIGATION_STATE_AUTO_RTL:
case NAVIGATION_STATE_AUTO_RTGS:
case NAVIGATION_STATE_AUTO_LANDENGFAIL:
control_mode.flag_control_manual_enabled = false;
control_mode.flag_control_auto_enabled = true;
control_mode.flag_control_rates_enabled = true;
@ -2008,6 +2204,18 @@ set_control_mode()
control_mode.flag_control_termination_enabled = false;
break;
case NAVIGATION_STATE_AUTO_LANDGPSFAIL:
control_mode.flag_control_manual_enabled = false;
control_mode.flag_control_auto_enabled = false;
control_mode.flag_control_rates_enabled = true;
control_mode.flag_control_attitude_enabled = true;
control_mode.flag_control_altitude_enabled = false;
control_mode.flag_control_climb_rate_enabled = true;
control_mode.flag_control_position_enabled = false;
control_mode.flag_control_velocity_enabled = false;
control_mode.flag_control_termination_enabled = false;
break;
case NAVIGATION_STATE_LAND:
control_mode.flag_control_manual_enabled = false;
control_mode.flag_control_auto_enabled = true;

66
src/modules/commander/commander_params.c
View File

@ -105,3 +105,69 @@ PARAM_DEFINE_FLOAT(BAT_CAPACITY, -1.0f);
* @max 1
*/
PARAM_DEFINE_INT32(COM_DL_LOSS_EN, 0);
/** Datalink loss time threshold
*
* After this amount of seconds without datalink the data link lost mode triggers
*
* @group commander
* @unit second
* @min 0
* @max 30
*/
PARAM_DEFINE_INT32(COM_DL_LOSS_T, 10);
/** Datalink regain time threshold
*
* After a data link loss: after this this amount of seconds with a healthy datalink the 'datalink loss'
* flag is set back to false
*
* @group commander
* @unit second
* @min 0
* @max 30
*/
PARAM_DEFINE_INT32(COM_DL_REG_T, 0);
/** Engine Failure Throttle Threshold
*
* Engine failure triggers only above this throttle value
*
* @group commander
* @min 0.0f
* @max 1.0f
*/
PARAM_DEFINE_FLOAT(COM_EF_THROT, 0.5f);
/** Engine Failure Current/Throttle Threshold
*
* Engine failure triggers only below this current/throttle value
*
* @group commander
* @min 0.0f
* @max 7.0f
*/
PARAM_DEFINE_FLOAT(COM_EF_C2T, 5.0f);
/** Engine Failure Time Threshold
*
* Engine failure triggers only if the throttle threshold and the
* current to throttle threshold are violated for this time
*
* @group commander
* @unit second
* @min 0.0f
* @max 7.0f
*/
PARAM_DEFINE_FLOAT(COM_EF_TIME, 10.0f);
/** RC loss time threshold
*
* After this amount of seconds without RC connection the rc lost flag is set to true
*
* @group commander
* @unit second
* @min 0
* @max 35
*/
PARAM_DEFINE_FLOAT(COM_RC_LOSS_T, 0.5);

55
src/modules/commander/state_machine_helper.cpp
View File

@ -443,7 +443,8 @@ transition_result_t hil_state_transition(hil_state_t new_state, int status_pub,
/**
* Check failsafe and main status and set navigation status for navigator accordingly
*/
bool set_nav_state(struct vehicle_status_s *status, const bool data_link_loss_enabled, const bool mission_finished)
bool set_nav_state(struct vehicle_status_s *status, const bool data_link_loss_enabled, const bool mission_finished,
const bool stay_in_failsafe)
{
navigation_state_t nav_state_old = status->nav_state;
@ -457,11 +458,11 @@ bool set_nav_state(struct vehicle_status_s *status, const bool data_link_loss_en
case MAIN_STATE_ALTCTL:
case MAIN_STATE_POSCTL:
/* require RC for all manual modes */
if (status->rc_signal_lost && armed) {
if ((status->rc_signal_lost || status->rc_signal_lost_cmd) && armed) {
status->failsafe = true;
if (status->condition_global_position_valid && status->condition_home_position_valid) {
status->nav_state = NAVIGATION_STATE_AUTO_RTL;
status->nav_state = NAVIGATION_STATE_AUTO_RCRECOVER;
} else if (status->condition_local_position_valid) {
status->nav_state = NAVIGATION_STATE_LAND;
} else if (status->condition_local_altitude_valid) {
@ -497,14 +498,29 @@ bool set_nav_state(struct vehicle_status_s *status, const bool data_link_loss_en
case MAIN_STATE_AUTO_MISSION:
/* go into failsafe
* - if commanded to do so
* - if we have an engine failure
* - if either the datalink is enabled and lost as well as RC is lost
* - if there is no datalink and the mission is finished */
if (((status->data_link_lost && data_link_loss_enabled) && status->rc_signal_lost) ||
if (status->engine_failure_cmd) {
status->nav_state = NAVIGATION_STATE_AUTO_LANDENGFAIL;
} else if (status->data_link_lost_cmd) {
status->nav_state = NAVIGATION_STATE_AUTO_RTGS;
} else if (status->gps_failure_cmd) {
status->nav_state = NAVIGATION_STATE_AUTO_LANDGPSFAIL;
} else if (status->rc_signal_lost_cmd) {
status->nav_state = NAVIGATION_STATE_AUTO_RTGS; //XXX
/* Finished handling commands which have priority , now handle failures */
} else if (status->gps_failure) {
status->nav_state = NAVIGATION_STATE_AUTO_LANDGPSFAIL;
} else if (status->engine_failure) {
status->nav_state = NAVIGATION_STATE_AUTO_LANDENGFAIL;
} else if (((status->data_link_lost && data_link_loss_enabled) && status->rc_signal_lost) ||
(!data_link_loss_enabled && status->rc_signal_lost && mission_finished)) {
status->failsafe = true;
if (status->condition_global_position_valid && status->condition_home_position_valid) {
status->nav_state = NAVIGATION_STATE_AUTO_RTL;
status->nav_state = NAVIGATION_STATE_AUTO_RTGS;
} else if (status->condition_local_position_valid) {
status->nav_state = NAVIGATION_STATE_LAND;
} else if (status->condition_local_altitude_valid) {
@ -528,31 +544,20 @@ bool set_nav_state(struct vehicle_status_s *status, const bool data_link_loss_en
}
/* don't bother if RC is lost and mission is not yet finished */
} else if (status->rc_signal_lost) {
} else if (status->rc_signal_lost && !stay_in_failsafe) {
/* this mode is ok, we don't need RC for missions */
status->nav_state = NAVIGATION_STATE_AUTO_MISSION;
} else {
} else if (!stay_in_failsafe){
/* everything is perfect */
status->nav_state = NAVIGATION_STATE_AUTO_MISSION;
}
break;
case MAIN_STATE_AUTO_LOITER:
/* go into failsafe if datalink and RC is lost */
if ((status->data_link_lost && data_link_loss_enabled) && status->rc_signal_lost) {
status->failsafe = true;
if (status->condition_global_position_valid && status->condition_home_position_valid) {
status->nav_state = NAVIGATION_STATE_AUTO_RTL;
} else if (status->condition_local_position_valid) {
status->nav_state = NAVIGATION_STATE_LAND;
} else if (status->condition_local_altitude_valid) {
status->nav_state = NAVIGATION_STATE_DESCEND;
} else {
status->nav_state = NAVIGATION_STATE_TERMINATION;
}
/* go into failsafe on a engine failure */
if (status->engine_failure) {
status->nav_state = NAVIGATION_STATE_AUTO_LANDENGFAIL;
/* also go into failsafe if just datalink is lost */
} else if (status->data_link_lost && data_link_loss_enabled) {
status->failsafe = true;
@ -593,8 +598,12 @@ bool set_nav_state(struct vehicle_status_s *status, const bool data_link_loss_en
break;
case MAIN_STATE_AUTO_RTL:
/* require global position and home */
if ((!status->condition_global_position_valid || !status->condition_home_position_valid)) {
/* require global position and home, also go into failsafe on an engine failure */
if (status->engine_failure) {
status->nav_state = NAVIGATION_STATE_AUTO_LANDENGFAIL;
} else if ((!status->condition_global_position_valid ||
!status->condition_home_position_valid)) {
status->failsafe = true;
if (status->condition_local_position_valid) {

2
src/modules/commander/state_machine_helper.h
View File

@ -63,7 +63,7 @@ transition_result_t main_state_transition(struct vehicle_status_s *current_state
transition_result_t hil_state_transition(hil_state_t new_state, int status_pub, struct vehicle_status_s *current_state, const int mavlink_fd);
bool set_nav_state(struct vehicle_status_s *status, const bool data_link_loss_enabled, const bool mission_finished);
bool set_nav_state(struct vehicle_status_s *status, const bool data_link_loss_enabled, const bool mission_finished, const bool stay_in_failsafe);
int prearm_check(const struct vehicle_status_s *status, const int mavlink_fd);

17
src/modules/fw_att_control/fw_att_control_main.cpp
View File

@ -746,7 +746,14 @@ FixedwingAttitudeControl::task_main()
float pitch_sp = _parameters.pitchsp_offset_rad;
float throttle_sp = 0.0f;
if (_vcontrol_mode.flag_control_velocity_enabled || _vcontrol_mode.flag_control_position_enabled) {
/* Read attitude setpoint from uorb if
* - velocity control or position control is enabled (pos controller is running)
* - manual control is disabled (another app may send the setpoint, but it should
* for sure not be set from the remote control values)
*/
if (_vcontrol_mode.flag_control_velocity_enabled ||
_vcontrol_mode.flag_control_position_enabled ||
!_vcontrol_mode.flag_control_manual_enabled) {
/* read in attitude setpoint from attitude setpoint uorb topic */
roll_sp = _att_sp.roll_body + _parameters.rollsp_offset_rad;
pitch_sp = _att_sp.pitch_body + _parameters.pitchsp_offset_rad;
@ -886,8 +893,12 @@ FixedwingAttitudeControl::task_main()
}
}
/* throttle passed through */
_actuators.control[3] = (isfinite(throttle_sp)) ? throttle_sp : 0.0f;
/* throttle passed through if it is finite and if no engine failure was
* detected */
_actuators.control[3] = (isfinite(throttle_sp) &&
!(_vehicle_status.engine_failure ||
_vehicle_status.engine_failure_cmd)) ?
throttle_sp : 0.0f;
if (!isfinite(throttle_sp)) {
if (_debug && loop_counter % 10 == 0) {
warnx("throttle_sp %.4f", (double)throttle_sp);

78
src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp
View File

@ -141,7 +141,8 @@ private:
int _pos_sp_triplet_sub;
int _att_sub; /**< vehicle attitude subscription */
int _airspeed_sub; /**< airspeed subscription */
int _control_mode_sub; /**< vehicle status subscription */
int _control_mode_sub; /**< control mode subscription */
int _vehicle_status_sub; /**< vehicle status subscription */
int _params_sub; /**< notification of parameter updates */
int _manual_control_sub; /**< notification of manual control updates */
int _sensor_combined_sub; /**< for body frame accelerations */
@ -156,7 +157,8 @@ private:
struct navigation_capabilities_s _nav_capabilities; /**< navigation capabilities */
struct manual_control_setpoint_s _manual; /**< r/c channel data */
struct airspeed_s _airspeed; /**< airspeed */
struct vehicle_control_mode_s _control_mode; /**< vehicle status */
struct vehicle_control_mode_s _control_mode; /**< control mode */
struct vehicle_status_s _vehicle_status; /**< vehicle status */
struct vehicle_global_position_s _global_pos; /**< global vehicle position */
struct position_setpoint_triplet_s _pos_sp_triplet; /**< triplet of mission items */
struct sensor_combined_s _sensor_combined; /**< for body frame accelerations */
@ -304,10 +306,15 @@ private:
void control_update();
/**
* Check for changes in vehicle status.
* Check for changes in control mode
*/
void vehicle_control_mode_poll();
/**
* Check for changes in vehicle status.
*/
void vehicle_status_poll();
/**
* Check for airspeed updates.
*/
@ -412,6 +419,7 @@ FixedwingPositionControl::FixedwingPositionControl() :
_att_sub(-1),
_airspeed_sub(-1),
_control_mode_sub(-1),
_vehicle_status_sub(-1),
_params_sub(-1),
_manual_control_sub(-1),
_sensor_combined_sub(-1),
@ -429,6 +437,7 @@ FixedwingPositionControl::FixedwingPositionControl() :
_manual(),
_airspeed(),
_control_mode(),
_vehicle_status(),
_global_pos(),
_pos_sp_triplet(),
_sensor_combined(),
@ -639,16 +648,27 @@ FixedwingPositionControl::parameters_update()
void
FixedwingPositionControl::vehicle_control_mode_poll()
{
bool vstatus_updated;
bool updated;
/* Check HIL state if vehicle status has changed */
orb_check(_control_mode_sub, &vstatus_updated);
orb_check(_control_mode_sub, &updated);
if (vstatus_updated) {
if (updated) {
orb_copy(ORB_ID(vehicle_control_mode), _control_mode_sub, &_control_mode);
}
}
void
FixedwingPositionControl::vehicle_status_poll()
{
bool updated;
orb_check(_vehicle_status_sub, &updated);
if (updated) {
orb_copy(ORB_ID(vehicle_status), _vehicle_status_sub, &_vehicle_status);
}
}
bool
FixedwingPositionControl::vehicle_airspeed_poll()
{
@ -1210,16 +1230,21 @@ FixedwingPositionControl::control_position(const math::Vector<2> &current_positi
}
}
/* Copy thrust and pitch values from tecs
* making sure again that the correct thrust is used,
* without depending on library calls for safety reasons */
if (pos_sp_triplet.current.type == SETPOINT_TYPE_TAKEOFF &&
if (_vehicle_status.engine_failure || _vehicle_status.engine_failure_cmd) {
/* Set thrust to 0 to minimize damage */
_att_sp.thrust = 0.0f;
} else if (pos_sp_triplet.current.type == SETPOINT_TYPE_TAKEOFF &&
launch_detection_state != LAUNCHDETECTION_RES_DETECTED_ENABLEMOTORS) {
/* Copy thrust and pitch values from tecs
* making sure again that the correct thrust is used,
* without depending on library calls for safety reasons */
_att_sp.thrust = launchDetector.getThrottlePreTakeoff();
} else {
/* Copy thrust and pitch values from tecs */
_att_sp.thrust = math::min(_mTecs.getEnabled() ? _mTecs.getThrottleSetpoint() :
_tecs.get_throttle_demand(), throttle_max);
}
else {
_att_sp.thrust = math::min(_mTecs.getEnabled() ? _mTecs.getThrottleSetpoint() : _tecs.get_throttle_demand(), throttle_max);
}
/* During a takeoff waypoint while waiting for launch the pitch sp is set
* already (not by tecs) */
if (!(pos_sp_triplet.current.type == SETPOINT_TYPE_TAKEOFF &&
@ -1249,13 +1274,16 @@ FixedwingPositionControl::task_main()
_att_sub = orb_subscribe(ORB_ID(vehicle_attitude));
_sensor_combined_sub = orb_subscribe(ORB_ID(sensor_combined));
_control_mode_sub = orb_subscribe(ORB_ID(vehicle_control_mode));
_vehicle_status_sub = orb_subscribe(ORB_ID(vehicle_status));
_airspeed_sub = orb_subscribe(ORB_ID(airspeed));
_params_sub = orb_subscribe(ORB_ID(parameter_update));
_manual_control_sub = orb_subscribe(ORB_ID(manual_control_setpoint));
_range_finder_sub = orb_subscribe(ORB_ID(sensor_range_finder));
/* rate limit vehicle status updates to 5Hz */
/* rate limit control mode updates to 5Hz */
orb_set_interval(_control_mode_sub, 200);
/* rate limit vehicle status updates to 5Hz */
orb_set_interval(_vehicle_status_sub, 200);
/* rate limit position updates to 50 Hz */
orb_set_interval(_global_pos_sub, 20);
@ -1294,9 +1322,12 @@ FixedwingPositionControl::task_main()
perf_begin(_loop_perf);
/* check vehicle status for changes to publication state */
/* check vehicle control mode for changes to publication state */
vehicle_control_mode_poll();
/* check vehicle status for changes to publication state */
vehicle_status_poll();
/* only update parameters if they changed */
if (fds[0].revents & POLLIN) {
/* read from param to clear updated flag */
@ -1408,7 +1439,12 @@ void FixedwingPositionControl::tecs_update_pitch_throttle(float alt_sp, float v_
flightPathAngle = -asinf(ground_speed(2)/ground_speed_length);
}
fwPosctrl::LimitOverride limitOverride;
if (climbout_mode) {
if (_vehicle_status.engine_failure || _vehicle_status.engine_failure_cmd) {
/* Force the slow downwards spiral */
limitOverride.enablePitchMinOverride(-1.0f);
limitOverride.enablePitchMaxOverride(5.0f);
} else if (climbout_mode) {
limitOverride.enablePitchMinOverride(M_RAD_TO_DEG_F * climbout_pitch_min_rad);
} else {
limitOverride.disablePitchMinOverride();
@ -1424,7 +1460,13 @@ void FixedwingPositionControl::tecs_update_pitch_throttle(float alt_sp, float v_
_mTecs.updateAltitudeSpeed(flightPathAngle, altitude, alt_sp, _airspeed.true_airspeed_m_s, v_sp, mode,
limitOverride);
} else {
/* No underspeed protection in landing mode */
if (_vehicle_status.engine_failure || _vehicle_status.engine_failure_cmd) {
/* Force the slow downwards spiral */
pitch_min_rad = M_DEG_TO_RAD_F * -1.0f;
pitch_max_rad = M_DEG_TO_RAD_F * 5.0f;
}
/* No underspeed protection in landing mode */
_tecs.set_detect_underspeed_enabled(!(mode == TECS_MODE_LAND || mode == TECS_MODE_LAND_THROTTLELIM));
/* Using tecs library */

2
src/modules/mavlink/mavlink_receiver.cpp
View File

@ -534,6 +534,8 @@ MavlinkReceiver::handle_message_radio_status(mavlink_message_t *msg)
tstatus.remote_noise = rstatus.remnoise;
tstatus.rxerrors = rstatus.rxerrors;
tstatus.fixed = rstatus.fixed;
tstatus.system_id = msg->sysid;
tstatus.component_id = msg->compid;
if (_telemetry_status_pub < 0) {
_telemetry_status_pub = orb_advertise(telemetry_status_orb_id[_mavlink->get_channel()], &tstatus);

227
src/modules/navigator/datalinkloss.cpp Normal file
View File

@ -0,0 +1,227 @@
/****************************************************************************
*
* Copyright (c) 2013-2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file datalinkloss.cpp
* Helper class for Data Link Loss Mode according to the OBC rules
*
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <fcntl.h>
#include <mavlink/mavlink_log.h>
#include <systemlib/err.h>
#include <geo/geo.h>
#include <uORB/uORB.h>
#include <uORB/topics/mission.h>
#include <uORB/topics/home_position.h>
#include "navigator.h"
#include "datalinkloss.h"
#define DELAY_SIGMA 0.01f
DataLinkLoss::DataLinkLoss(Navigator *navigator, const char *name) :
MissionBlock(navigator, name),
_param_commsholdwaittime(this, "CH_T"),
_param_commsholdlat(this, "CH_LAT"),
_param_commsholdlon(this, "CH_LON"),
_param_commsholdalt(this, "CH_ALT"),
_param_airfieldhomelat(this, "NAV_AH_LAT", false),
_param_airfieldhomelon(this, "NAV_AH_LON", false),
_param_airfieldhomealt(this, "NAV_AH_ALT", false),
_param_airfieldhomewaittime(this, "AH_T"),
_param_numberdatalinklosses(this, "N"),
_param_skipcommshold(this, "CHSK"),
_dll_state(DLL_STATE_NONE)
{
/* load initial params */
updateParams();
/* initial reset */
on_inactive();
}
DataLinkLoss::~DataLinkLoss()
{
}
void
DataLinkLoss::on_inactive()
{
/* reset DLL state only if setpoint moved */
if (!_navigator->get_can_loiter_at_sp()) {
_dll_state = DLL_STATE_NONE;
}
}
void
DataLinkLoss::on_activation()
{
_dll_state = DLL_STATE_NONE;
updateParams();
advance_dll();
set_dll_item();
}
void
DataLinkLoss::on_active()
{
if (is_mission_item_reached()) {
updateParams();
advance_dll();
set_dll_item();
}
}
void
DataLinkLoss::set_dll_item()
{
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
set_previous_pos_setpoint();
_navigator->set_can_loiter_at_sp(false);
switch (_dll_state) {
case DLL_STATE_FLYTOCOMMSHOLDWP: {
_mission_item.lat = (double)(_param_commsholdlat.get()) * 1.0e-7;
_mission_item.lon = (double)(_param_commsholdlon.get()) * 1.0e-7;
_mission_item.altitude_is_relative = false;
_mission_item.altitude = _param_commsholdalt.get();
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_LOITER_TIME_LIMIT;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = _param_commsholdwaittime.get() < 0.0f ? 0.0f : _param_commsholdwaittime.get();
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
_navigator->set_can_loiter_at_sp(true);
break;
}
case DLL_STATE_FLYTOAIRFIELDHOMEWP: {
_mission_item.lat = (double)(_param_airfieldhomelat.get()) * 1.0e-7;
_mission_item.lon = (double)(_param_airfieldhomelon.get()) * 1.0e-7;
_mission_item.altitude_is_relative = false;
_mission_item.altitude = _param_airfieldhomealt.get();
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_LOITER_TIME_LIMIT;
_mission_item.time_inside = _param_airfieldhomewaittime.get() < 0.0f ? 0.0f : _param_airfieldhomewaittime.get();
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
_navigator->set_can_loiter_at_sp(true);
break;
}
case DLL_STATE_TERMINATE: {
/* Request flight termination from the commander */
_navigator->get_mission_result()->flight_termination = true;
_navigator->publish_mission_result();
warnx("not switched to manual: request flight termination");
pos_sp_triplet->previous.valid = false;
pos_sp_triplet->current.valid = false;
pos_sp_triplet->next.valid = false;
break;
}
default:
break;
}
reset_mission_item_reached();
/* convert mission item to current position setpoint and make it valid */
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
pos_sp_triplet->next.valid = false;
_navigator->set_position_setpoint_triplet_updated();
}
void
DataLinkLoss::advance_dll()
{
switch (_dll_state) {
case DLL_STATE_NONE:
/* Check the number of data link losses. If above home fly home directly */
/* if number of data link losses limit is not reached fly to comms hold wp */
if (_navigator->get_vstatus()->data_link_lost_counter > _param_numberdatalinklosses.get()) {
warnx("%d data link losses, limit is %d, fly to airfield home",
_navigator->get_vstatus()->data_link_lost_counter, _param_numberdatalinklosses.get());
mavlink_log_info(_navigator->get_mavlink_fd(), "#audio: too many DL losses, fly to airfield home");
_navigator->get_mission_result()->stay_in_failsafe = true;
_navigator->publish_mission_result();
_dll_state = DLL_STATE_FLYTOAIRFIELDHOMEWP;
} else {
if (!_param_skipcommshold.get()) {
warnx("fly to comms hold, datalink loss counter: %d", _navigator->get_vstatus()->data_link_lost_counter);
mavlink_log_info(_navigator->get_mavlink_fd(), "#audio: fly to comms hold");
_dll_state = DLL_STATE_FLYTOCOMMSHOLDWP;
} else {
/* comms hold wp not active, fly to airfield home directly */
warnx("Skipping comms hold wp. Flying directly to airfield home");
mavlink_log_info(_navigator->get_mavlink_fd(), "#audio: fly to airfield home, comms hold skipped");
_dll_state = DLL_STATE_FLYTOAIRFIELDHOMEWP;
}
}
break;
case DLL_STATE_FLYTOCOMMSHOLDWP:
warnx("fly to airfield home");
mavlink_log_info(_navigator->get_mavlink_fd(), "#audio: fly to airfield home");
_dll_state = DLL_STATE_FLYTOAIRFIELDHOMEWP;
_navigator->get_mission_result()->stay_in_failsafe = true;
_navigator->publish_mission_result();
break;
case DLL_STATE_FLYTOAIRFIELDHOMEWP:
_dll_state = DLL_STATE_TERMINATE;
warnx("time is up, state should have been changed manually by now");
mavlink_log_info(_navigator->get_mavlink_fd(), "#audio: no manual control, terminating");
_navigator->get_mission_result()->stay_in_failsafe = true;
_navigator->publish_mission_result();
break;
case DLL_STATE_TERMINATE:
warnx("dll end");
_dll_state = DLL_STATE_END;
break;
default:
break;
}
}

98
src/modules/navigator/datalinkloss.h Normal file
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@ -0,0 +1,98 @@
/***************************************************************************
*
* Copyright (c) 2013-2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file datalinkloss.h
* Helper class for Data Link Loss Mode acording to the OBC rules
*
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#ifndef NAVIGATOR_DATALINKLOSS_H
#define NAVIGATOR_DATALINKLOSS_H
#include <controllib/blocks.hpp>
#include <controllib/block/BlockParam.hpp>
#include <uORB/Subscription.hpp>
#include "navigator_mode.h"
#include "mission_block.h"
class Navigator;
class DataLinkLoss : public MissionBlock
{
public:
DataLinkLoss(Navigator *navigator, const char *name);
~DataLinkLoss();
virtual void on_inactive();
virtual void on_activation();
virtual void on_active();
private:
/* Params */
control::BlockParamFloat _param_commsholdwaittime;
control::BlockParamInt _param_commsholdlat; // * 1e7
control::BlockParamInt _param_commsholdlon; // * 1e7
control::BlockParamFloat _param_commsholdalt;
control::BlockParamInt _param_airfieldhomelat; // * 1e7
control::BlockParamInt _param_airfieldhomelon; // * 1e7
control::BlockParamFloat _param_airfieldhomealt;
control::BlockParamFloat _param_airfieldhomewaittime;
control::BlockParamInt _param_numberdatalinklosses;
control::BlockParamInt _param_skipcommshold;
enum DLLState {
DLL_STATE_NONE = 0,
DLL_STATE_FLYTOCOMMSHOLDWP = 1,
DLL_STATE_FLYTOAIRFIELDHOMEWP = 2,
DLL_STATE_TERMINATE = 3,
DLL_STATE_END = 4
} _dll_state;
/**
* Set the DLL item
*/
void set_dll_item();
/**
* Move to next DLL item
*/
void advance_dll();
};
#endif

126
src/modules/navigator/datalinkloss_params.c Normal file
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@ -0,0 +1,126 @@
/****************************************************************************
*
* Copyright (c) 2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file datalinkloss_params.c
*
* Parameters for DLL
*
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#include <nuttx/config.h>
#include <systemlib/param/param.h>
/*
* Data Link Loss parameters, accessible via MAVLink
*/
/**
* Comms hold wait time
*
* The amount of time in seconds the system should wait at the comms hold waypoint
*
* @unit seconds
* @min 0.0
* @group DLL
*/
PARAM_DEFINE_FLOAT(NAV_DLL_CH_T, 120.0f);
/**
* Comms hold Lat
*
* Latitude of comms hold waypoint
*
* @unit degrees * 1e7
* @min 0.0
* @group DLL
*/
PARAM_DEFINE_INT32(NAV_DLL_CH_LAT, -266072120);
/**
* Comms hold Lon
*
* Longitude of comms hold waypoint
*
* @unit degrees * 1e7
* @min 0.0
* @group DLL
*/
PARAM_DEFINE_INT32(NAV_DLL_CH_LON, 1518453890);
/**
* Comms hold alt
*
* Altitude of comms hold waypoint
*
* @unit m
* @min 0.0
* @group DLL
*/
PARAM_DEFINE_FLOAT(NAV_DLL_CH_ALT, 600.0f);
/**
* Aifield hole wait time
*
* The amount of time in seconds the system should wait at the airfield home waypoint
*
* @unit seconds
* @min 0.0
* @group DLL
*/
PARAM_DEFINE_FLOAT(NAV_DLL_AH_T, 120.0f);
/**
* Number of allowed Datalink timeouts
*
* After more than this number of data link timeouts the aircraft returns home directly
*
* @group DLL
* @min 0
* @max 1000
*/
PARAM_DEFINE_INT32(NAV_DLL_N, 2);
/**
* Skip comms hold wp
*
* If set to 1 the system will skip the comms hold wp on data link loss and will directly fly to
* airfield home
*
* @group DLL
* @min 0
* @max 1
*/
PARAM_DEFINE_INT32(NAV_DLL_CHSK, 0);

149
src/modules/navigator/enginefailure.cpp Normal file
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@ -0,0 +1,149 @@
/****************************************************************************
*
* Copyright (c) 2013-2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* @file enginefailure.cpp
* Helper class for a fixedwing engine failure mode
*
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <fcntl.h>
#include <mavlink/mavlink_log.h>
#include <systemlib/err.h>
#include <geo/geo.h>
#include <uORB/uORB.h>
#include <uORB/topics/mission.h>
#include "navigator.h"
#include "enginefailure.h"
#define DELAY_SIGMA 0.01f
EngineFailure::EngineFailure(Navigator *navigator, const char *name) :
MissionBlock(navigator, name),
_ef_state(EF_STATE_NONE)
{
/* load initial params */
updateParams();
/* initial reset */
on_inactive();
}
EngineFailure::~EngineFailure()
{
}
void
EngineFailure::on_inactive()
{
_ef_state = EF_STATE_NONE;
}
void
EngineFailure::on_activation()
{
_ef_state = EF_STATE_NONE;
advance_ef();
set_ef_item();
}
void
EngineFailure::on_active()
{
if (is_mission_item_reached()) {
advance_ef();
set_ef_item();
}
}
void
EngineFailure::set_ef_item()
{
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
/* make sure we have the latest params */
updateParams();
set_previous_pos_setpoint();
_navigator->set_can_loiter_at_sp(false);
switch (_ef_state) {
case EF_STATE_LOITERDOWN: {
//XXX create mission item at ground (below?) here
_mission_item.lat = _navigator->get_global_position()->lat;
_mission_item.lon = _navigator->get_global_position()->lon;
_mission_item.altitude_is_relative = false;
//XXX setting altitude to a very low value, evaluate other options
_mission_item.altitude = _navigator->get_home_position()->alt - 1000.0f;
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_LOITER_UNLIMITED;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
_navigator->set_can_loiter_at_sp(true);
break;
}
default:
break;
}
reset_mission_item_reached();
/* convert mission item to current position setpoint and make it valid */
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
pos_sp_triplet->next.valid = false;
_navigator->set_position_setpoint_triplet_updated();
}
void
EngineFailure::advance_ef()
{
switch (_ef_state) {
case EF_STATE_NONE:
mavlink_log_info(_navigator->get_mavlink_fd(), "#audio: Engine failure. Loitering down");
_ef_state = EF_STATE_LOITERDOWN;
break;
default:
break;
}
}

83
src/modules/navigator/enginefailure.h Normal file
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@ -0,0 +1,83 @@
/***************************************************************************
*
* Copyright (c) 2013-2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file enginefailure.h
* Helper class for a fixedwing engine failure mode
*
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#ifndef NAVIGATOR_ENGINEFAILURE_H
#define NAVIGATOR_ENGINEFAILURE_H
#include <controllib/blocks.hpp>
#include <controllib/block/BlockParam.hpp>
#include <uORB/Subscription.hpp>
#include "navigator_mode.h"
#include "mission_block.h"
class Navigator;
class EngineFailure : public MissionBlock
{
public:
EngineFailure(Navigator *navigator, const char *name);
~EngineFailure();
virtual void on_inactive();
virtual void on_activation();
virtual void on_active();
private:
enum EFState {
EF_STATE_NONE = 0,
EF_STATE_LOITERDOWN = 1,
} _ef_state;
/**
* Set the DLL item
*/
void set_ef_item();
/**
* Move to next EF item
*/
void advance_ef();
};
#endif

64
src/modules/navigator/geofence.cpp
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@ -48,6 +48,7 @@
#include <ctype.h>
#include <nuttx/config.h>
#include <unistd.h>
#include <mavlink/mavlink_log.h>
/* Oddly, ERROR is not defined for C++ */
@ -62,7 +63,12 @@ Geofence::Geofence() :
_altitude_min(0),
_altitude_max(0),
_verticesCount(0),
param_geofence_on(this, "ON")
_param_geofence_on(this, "ON"),
_param_altitude_mode(this, "ALTMODE"),
_param_source(this, "SOURCE"),
_param_counter_threshold(this, "COUNT"),
_outside_counter(0),
_mavlinkFd(-1)
{
/* Load initial params */
updateParams();
@ -74,23 +80,69 @@ Geofence::~Geofence()
}
bool Geofence::inside(const struct vehicle_global_position_s *vehicle)
bool Geofence::inside(const struct vehicle_global_position_s &global_position)
{
return inside(vehicle->lat, vehicle->lon, vehicle->alt);
return inside(global_position.lat, global_position.lon, global_position.alt);
}
bool Geofence::inside(const struct vehicle_global_position_s &global_position, float baro_altitude_amsl)
{
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) {
updateParams();
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)
{
bool inside_fence = inside_polygon(lat, lon, altitude);
if (inside_fence) {
_outside_counter = 0;
return inside_fence;
} {
_outside_counter++;
if(_outside_counter > _param_counter_threshold.get()) {
return inside_fence;
} else {
return true;
}
}
}
bool Geofence::inside_polygon(double lat, double lon, float altitude)
{
/* Return true if geofence is disabled */
if (param_geofence_on.get() != 1)
if (_param_geofence_on.get() != 1)
return true;
if (valid()) {
if (!isEmpty()) {
/* Vertical check */
if (altitude > _altitude_max || altitude < _altitude_min)
if (altitude > _altitude_max || altitude < _altitude_min) {
return false;
}
/*Horizontal check */
/* Adaptation of algorithm originally presented as
@ -280,8 +332,10 @@ Geofence::loadFromFile(const char *filename)
{
_verticesCount = pointCounter;
warnx("Geofence: imported successfully");
mavlink_log_info(_mavlinkFd, "Geofence imported");
} else {
warnx("Geofence: import error");
mavlink_log_critical(_mavlinkFd, "#audio: Geofence import error");
}
return ERROR;

63
src/modules/navigator/geofence.h
View File

@ -42,6 +42,9 @@
#define GEOFENCE_H_
#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>
@ -49,30 +52,32 @@
class Geofence : public control::SuperBlock
{
private:
orb_advert_t _fence_pub; /**< publish fence topic */
float _altitude_min;
float _altitude_max;
unsigned _verticesCount;
/* Params */
control::BlockParamInt param_geofence_on;
public:
Geofence();
~Geofence();
/* Altitude mode, corresponding to the param GF_ALTMODE */
enum {
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 craft is inside geofence.
* Return whether system is inside geofence.
*
* Calculate whether point is inside arbitrary polygon
* @param craft pointer craft coordinates
* @param fence pointer to array of coordinates, one per vertex. First and last vertex are assumed connected
* @return true: craft is inside fence, false:craft is outside fence
* @return true: system is inside fence, false: system is outside fence
*/
bool inside(const struct vehicle_global_position_s *craft);
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);
bool inside_polygon(double lat, double lon, float altitude);
int clearDm();
@ -88,6 +93,34 @@ public:
int loadFromFile(const char *filename);
bool isEmpty() {return _verticesCount == 0;}
int getAltitudeMode() { return _param_altitude_mode.get(); }
int getSource() { return _param_source.get(); }
void setMavlinkFd(int value) { _mavlinkFd = value; }
private:
orb_advert_t _fence_pub; /**< publish fence topic */
float _altitude_min;
float _altitude_max;
unsigned _verticesCount;
/* Params */
control::BlockParamInt _param_geofence_on;
control::BlockParamInt _param_altitude_mode;
control::BlockParamInt _param_source;
control::BlockParamInt _param_counter_threshold;
uint8_t _outside_counter;
int _mavlinkFd;
bool inside(double lat, double lon, float altitude);
bool inside(const struct vehicle_global_position_s &global_position);
bool inside(const struct vehicle_global_position_s &global_position, float baro_altitude_amsl);
};

36
src/modules/navigator/geofence_params.c
View File

@ -58,3 +58,39 @@
* @group Geofence
*/
PARAM_DEFINE_INT32(GF_ON, 1);
/**
* Geofence altitude mode
*
* Select which altitude reference should be used
* 0 = WGS84, 1 = AMSL
*
* @min 0
* @max 1
* @group Geofence
*/
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);
/**
* Geofence counter limit
*
* Set how many subsequent position measurements outside of the fence are needed before geofence violation is triggered
*
* @min -1
* @max 10
* @group Geofence
*/
PARAM_DEFINE_INT32(GF_COUNT, -1);

178
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@ -0,0 +1,178 @@
/****************************************************************************
*
* Copyright (c) 2013-2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file gpsfailure.cpp
* Helper class for gpsfailure mode according to the OBC rules
*
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <fcntl.h>
#include <mavlink/mavlink_log.h>
#include <systemlib/err.h>
#include <geo/geo.h>
#include <uORB/uORB.h>
#include <uORB/topics/mission.h>
#include <uORB/topics/home_position.h>
#include "navigator.h"
#include "gpsfailure.h"
#define DELAY_SIGMA 0.01f
GpsFailure::GpsFailure(Navigator *navigator, const char *name) :
MissionBlock(navigator, name),
_param_loitertime(this, "LT"),
_param_openlooploiter_roll(this, "R"),
_param_openlooploiter_pitch(this, "P"),
_param_openlooploiter_thrust(this, "TR"),
_gpsf_state(GPSF_STATE_NONE),
_timestamp_activation(0)
{
/* load initial params */
updateParams();
/* initial reset */
on_inactive();
}
GpsFailure::~GpsFailure()
{
}
void
GpsFailure::on_inactive()
{
/* reset GPSF state only if setpoint moved */
if (!_navigator->get_can_loiter_at_sp()) {
_gpsf_state = GPSF_STATE_NONE;
}
}
void
GpsFailure::on_activation()
{
_gpsf_state = GPSF_STATE_NONE;
_timestamp_activation = hrt_absolute_time();
updateParams();
advance_gpsf();
set_gpsf_item();
}
void
GpsFailure::on_active()
{
switch (_gpsf_state) {
case GPSF_STATE_LOITER: {
/* Position controller does not run in this mode:
* navigator has to publish an attitude setpoint */
_navigator->get_att_sp()->roll_body = M_DEG_TO_RAD_F * _param_openlooploiter_roll.get();
_navigator->get_att_sp()->pitch_body = M_DEG_TO_RAD_F * _param_openlooploiter_pitch.get();
_navigator->get_att_sp()->thrust = _param_openlooploiter_thrust.get();
_navigator->publish_att_sp();
/* Measure time */
hrt_abstime elapsed = hrt_elapsed_time(&_timestamp_activation);
//warnx("open loop loiter, posctl enabled %u, elapsed %.1fs, thrust %.2f",
//_navigator->get_control_mode()->flag_control_position_enabled, elapsed * 1e-6, (double)_param_openlooploiter_thrust.get());
if (elapsed > _param_loitertime.get() * 1e6f) {
/* no recovery, adavance the state machine */
warnx("gps not recovered, switch to next state");
advance_gpsf();
}
break;
}
case GPSF_STATE_TERMINATE:
set_gpsf_item();
advance_gpsf();
break;
default:
break;
}
}
void
GpsFailure::set_gpsf_item()
{
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
/* Set pos sp triplet to invalid to stop pos controller */
pos_sp_triplet->previous.valid = false;
pos_sp_triplet->current.valid = false;
pos_sp_triplet->next.valid = false;
switch (_gpsf_state) {
case GPSF_STATE_TERMINATE: {
/* Request flight termination from the commander */
_navigator->get_mission_result()->flight_termination = true;
_navigator->publish_mission_result();
warnx("gps fail: request flight termination");
}
default:
break;
}
reset_mission_item_reached();
_navigator->set_position_setpoint_triplet_updated();
}
void
GpsFailure::advance_gpsf()
{
updateParams();
switch (_gpsf_state) {
case GPSF_STATE_NONE:
_gpsf_state = GPSF_STATE_LOITER;
warnx("gpsf loiter");
mavlink_log_info(_navigator->get_mavlink_fd(), "#audio: open loop loiter");
break;
case GPSF_STATE_LOITER:
_gpsf_state = GPSF_STATE_TERMINATE;
warnx("gpsf terminate");
mavlink_log_info(_navigator->get_mavlink_fd(), "#audio: no gps recovery, termination");
warnx("mavlink sent");
break;
case GPSF_STATE_TERMINATE:
warnx("gpsf end");
_gpsf_state = GPSF_STATE_END;
default:
break;
}
}

97
src/modules/navigator/gpsfailure.h Normal file
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@ -0,0 +1,97 @@
/***************************************************************************
*
* Copyright (c) 2013-2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file gpsfailure.h
* Helper class for Data Link Loss Mode according to the OBC rules
*
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#ifndef NAVIGATOR_GPSFAILURE_H
#define NAVIGATOR_GPSFAILURE_H
#include <controllib/blocks.hpp>
#include <controllib/block/BlockParam.hpp>
#include <uORB/uORB.h>
#include <uORB/Publication.hpp>
#include <uORB/topics/vehicle_attitude_setpoint.h>
#include <drivers/drv_hrt.h>
#include "navigator_mode.h"
#include "mission_block.h"
class Navigator;
class GpsFailure : public MissionBlock
{
public:
GpsFailure(Navigator *navigator, const char *name);
~GpsFailure();
virtual void on_inactive();
virtual void on_activation();
virtual void on_active();
private:
/* Params */
control::BlockParamFloat _param_loitertime;
control::BlockParamFloat _param_openlooploiter_roll;
control::BlockParamFloat _param_openlooploiter_pitch;
control::BlockParamFloat _param_openlooploiter_thrust;
enum GPSFState {
GPSF_STATE_NONE = 0,
GPSF_STATE_LOITER = 1,
GPSF_STATE_TERMINATE = 2,
GPSF_STATE_END = 3,
} _gpsf_state;
hrt_abstime _timestamp_activation; //*< timestamp when this mode was activated */
/**
* Set the GPSF item
*/
void set_gpsf_item();
/**
* Move to next GPSF item
*/
void advance_gpsf();
};
#endif

97
src/modules/navigator/gpsfailure_params.c Normal file
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@ -0,0 +1,97 @@
/****************************************************************************
*
* Copyright (c) 2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file gpsfailure_params.c
*
* Parameters for GPSF navigation mode
*
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#include <nuttx/config.h>
#include <systemlib/param/param.h>
/*
* GPS Failure Navigation Mode parameters, accessible via MAVLink
*/
/**
* Loiter time
*
* The amount of time in seconds the system should do open loop loiter and wait for gps recovery
* before it goes into flight termination.
*
* @unit seconds
* @min 0.0
* @group GPSF
*/
PARAM_DEFINE_FLOAT(NAV_GPSF_LT, 30.0f);
/**
* Open loop loiter roll
*
* Roll in degrees during the open loop loiter
*
* @unit deg
* @min 0.0
* @max 30.0
* @group GPSF
*/
PARAM_DEFINE_FLOAT(NAV_GPSF_R, 15.0f);
/**
* Open loop loiter pitch
*
* Pitch in degrees during the open loop loiter
*
* @unit deg
* @min -30.0
* @max 30.0
* @group GPSF
*/
PARAM_DEFINE_FLOAT(NAV_GPSF_P, 0.0f);
/**
* Open loop loiter thrust
*
* Thrust value which is set during the open loop loiter
*
* @min 0.0
* @max 1.0
* @group GPSF
*/
PARAM_DEFINE_FLOAT(NAV_GPSF_TR, 0.7f);

40
src/modules/navigator/mission.cpp
View File

@ -62,18 +62,16 @@
Mission::Mission(Navigator *navigator, const char *name) :
MissionBlock(navigator, name),
_param_onboard_enabled(this, "ONBOARD_EN"),
_param_takeoff_alt(this, "TAKEOFF_ALT"),
_param_dist_1wp(this, "DIST_1WP"),
_param_altmode(this, "ALTMODE"),
_param_onboard_enabled(this, "MIS_ONBOARD_EN", false),
_param_takeoff_alt(this, "MIS_TAKEOFF_ALT", false),
_param_dist_1wp(this, "MIS_DIST_1WP", false),
_param_altmode(this, "MIS_ALTMODE", false),
_onboard_mission({0}),
_offboard_mission({0}),
_current_onboard_mission_index(-1),
_current_offboard_mission_index(-1),
_need_takeoff(true),
_takeoff(false),
_mission_result_pub(-1),
_mission_result({0}),
_mission_type(MISSION_TYPE_NONE),
_inited(false),
_dist_1wp_ok(false),
@ -671,18 +669,18 @@ void
Mission::report_mission_item_reached()
{
if (_mission_type == MISSION_TYPE_OFFBOARD) {
_mission_result.reached = true;
_mission_result.seq_reached = _current_offboard_mission_index;
_navigator->get_mission_result()->reached = true;
_navigator->get_mission_result()->seq_reached = _current_offboard_mission_index;
}
publish_mission_result();
_navigator->publish_mission_result();
}
void
Mission::report_current_offboard_mission_item()
{
warnx("current offboard mission index: %d", _current_offboard_mission_index);
_mission_result.seq_current = _current_offboard_mission_index;
publish_mission_result();
_navigator->get_mission_result()->seq_current = _current_offboard_mission_index;
_navigator->publish_mission_result();
save_offboard_mission_state();
}
@ -690,23 +688,7 @@ Mission::report_current_offboard_mission_item()
void
Mission::report_mission_finished()
{
_mission_result.finished = true;
publish_mission_result();
_navigator->get_mission_result()->finished = true;
_navigator->publish_mission_result();
}
void
Mission::publish_mission_result()
{
/* lazily publish the mission result only once available */
if (_mission_result_pub > 0) {
/* publish mission result */
orb_publish(ORB_ID(mission_result), _mission_result_pub, &_mission_result);
} else {
/* advertise and publish */
_mission_result_pub = orb_advertise(ORB_ID(mission_result), &_mission_result);
}
/* reset reached bool */
_mission_result.reached = false;
_mission_result.finished = false;
}

8
src/modules/navigator/mission.h
View File

@ -144,11 +144,6 @@ private:
*/
void report_mission_finished();
/**
* Publish the mission result so commander and mavlink know what is going on
*/
void publish_mission_result();
control::BlockParamInt _param_onboard_enabled;
control::BlockParamFloat _param_takeoff_alt;
control::BlockParamFloat _param_dist_1wp;
@ -162,9 +157,6 @@ private:
bool _need_takeoff;
bool _takeoff;
orb_advert_t _mission_result_pub;
struct mission_result_s _mission_result;
enum {
MISSION_TYPE_NONE,
MISSION_TYPE_ONBOARD,

2
src/modules/navigator/mission_feasibility_checker.cpp
View File

@ -120,7 +120,7 @@ bool MissionFeasibilityChecker::checkGeofence(dm_item_t dm_current, size_t nMiss
return false;
}
if (!geofence.inside(missionitem.lat, missionitem.lon, missionitem.altitude)) {
if (!geofence.inside_polygon(missionitem.lat, missionitem.lon, missionitem.altitude)) {
mavlink_log_info(_mavlink_fd, "#audio: Geofence violation waypoint %d", i);
return false;
}

9
src/modules/navigator/module.mk
View File

@ -49,7 +49,14 @@ SRCS = navigator_main.cpp \
offboard.cpp \
mission_feasibility_checker.cpp \
geofence.cpp \
geofence_params.c
geofence_params.c \
datalinkloss.cpp \
datalinkloss_params.c \
rcloss.cpp \
rcloss_params.c \
enginefailure.cpp \
gpsfailure.cpp \
gpsfailure_params.c
INCLUDE_DIRS += $(MAVLINK_SRC)/include/mavlink

59
src/modules/navigator/navigator.h
View File

@ -35,6 +35,7 @@
* Helper class to access missions
* @author Julian Oes <julian@oes.ch>
* @author Anton Babushkin <anton.babushkin@me.com>
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#ifndef NAVIGATOR_H
@ -50,20 +51,26 @@
#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>
#include "navigator_mode.h"
#include "mission.h"
#include "loiter.h"
#include "rtl.h"
#include "offboard.h"
#include "datalinkloss.h"
#include "enginefailure.h"
#include "gpsfailure.h"
#include "rcloss.h"
#include "geofence.h"
/**
* Number of navigation modes that need on_active/on_inactive calls
* Currently: mission, loiter, and rtl
*/
#define NAVIGATOR_MODE_ARRAY_SIZE 4
#define NAVIGATOR_MODE_ARRAY_SIZE 8
class Navigator : public control::SuperBlock
{
@ -100,6 +107,17 @@ public:
*/
void load_fence_from_file(const char *filename);
/**
* Publish the mission result so commander and mavlink know what is going on
*/
void publish_mission_result();
/**
* Publish the attitude sp, only to be used in very special modes when position control is deactivated
* Example: mode that is triggered on gps failure
*/
void publish_att_sp();
/**
* Setters
*/
@ -112,8 +130,13 @@ 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; }
struct position_setpoint_triplet_s* get_position_setpoint_triplet() { return &_pos_sp_triplet; }
struct mission_result_s* get_mission_result() { return &_mission_result; }
struct vehicle_attitude_setpoint_s* get_att_sp() { return &_att_sp; }
int get_onboard_mission_sub() { return _onboard_mission_sub; }
int get_offboard_mission_sub() { return _offboard_mission_sub; }
int get_offboard_control_sp_sub() { return _offboard_control_sp_sub; }
@ -131,6 +154,8 @@ 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 */
int _capabilities_sub; /**< notification of vehicle capabilities updates */
@ -141,15 +166,24 @@ private:
int _param_update_sub; /**< param update subscription */
orb_advert_t _pos_sp_triplet_pub; /**< publish position setpoint triplet */
orb_advert_t _mission_result_pub;
orb_advert_t _att_sp_pub; /**< publish att sp
used only in very special failsafe modes
when pos control is deactivated */
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 */
navigation_capabilities_s _nav_caps; /**< navigation capabilities */
position_setpoint_triplet_s _pos_sp_triplet; /**< triplet of position setpoints */
mission_result_s _mission_result;
vehicle_attitude_setpoint_s _att_sp;
bool _mission_item_valid; /**< flags if the current mission item is valid */
perf_counter_t _loop_perf; /**< loop performance counter */
@ -157,14 +191,19 @@ private:
Geofence _geofence; /**< class that handles the geofence */
bool _geofence_violation_warning_sent; /**< prevents spaming to mavlink */
bool _fence_valid; /**< flag if fence is valid */
bool _inside_fence; /**< vehicle is inside fence */
NavigatorMode *_navigation_mode; /**< abstract pointer to current navigation mode class */
Mission _mission; /**< class that handles the missions */
Loiter _loiter; /**< class that handles loiter */
RTL _rtl; /**< class that handles RTL */
RCLoss _rcLoss; /**< class that handles RTL according to
OBC rules (rc loss mode) */
Offboard _offboard; /**< class that handles offboard */
DataLinkLoss _dataLinkLoss; /**< class that handles the OBC datalink loss mode */
EngineFailure _engineFailure; /**< class that handles the engine failure mode
(FW only!) */
GpsFailure _gpsFailure; /**< class that handles the OBC gpsfailure loss mode */
NavigatorMode *_navigation_mode_array[NAVIGATOR_MODE_ARRAY_SIZE]; /**< array of navigation modes */
@ -173,11 +212,23 @@ private:
control::BlockParamFloat _param_loiter_radius; /**< loiter radius for fixedwing */
control::BlockParamFloat _param_acceptance_radius; /**< acceptance for takeoff */
control::BlockParamInt _param_datalinkloss_obc; /**< if true: obc mode on data link loss enabled */
control::BlockParamInt _param_rcloss_obc; /**< if true: obc mode on rc loss enabled */
/**
* Retrieve global position
*/
void global_position_update();
/**
* Retrieve gps position
*/
void gps_position_update();
/**
* Retrieve sensor values
*/
void sensor_combined_update();
/**
* Retrieve home position
*/

141
src/modules/navigator/navigator_main.cpp
View File

@ -40,6 +40,7 @@
* @author Jean Cyr <jean.m.cyr@gmail.com>
* @author Julian Oes <julian@oes.ch>
* @author Anton Babushkin <anton.babushkin@me.com>
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#include <nuttx/config.h>
@ -68,6 +69,7 @@
#include <uORB/topics/fence.h>
#include <uORB/topics/navigation_capabilities.h>
#include <uORB/topics/offboard_control_setpoint.h>
#include <drivers/drv_baro.h>
#include <systemlib/err.h>
#include <systemlib/systemlib.h>
@ -85,6 +87,7 @@
*/
extern "C" __EXPORT int navigator_main(int argc, char *argv[]);
#define GEOFENCE_CHECK_INTERVAL 200000
namespace navigator
{
@ -98,6 +101,7 @@ 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),
@ -107,34 +111,49 @@ Navigator::Navigator() :
_offboard_mission_sub(-1),
_param_update_sub(-1),
_pos_sp_triplet_pub(-1),
_mission_result_pub(-1),
_att_sp_pub(-1),
_vstatus{},
_control_mode{},
_global_pos{},
_gps_pos{},
_sensor_combined{},
_home_pos{},
_mission_item{},
_nav_caps{},
_pos_sp_triplet{},
_mission_result{},
_att_sp{},
_mission_item_valid(false),
_loop_perf(perf_alloc(PC_ELAPSED, "navigator")),
_geofence{},
_geofence_violation_warning_sent(false),
_fence_valid(false),
_inside_fence(true),
_navigation_mode(nullptr),
_mission(this, "MIS"),
_loiter(this, "LOI"),
_rtl(this, "RTL"),
_rcLoss(this, "RCL"),
_offboard(this, "OFF"),
_dataLinkLoss(this, "DLL"),
_engineFailure(this, "EF"),
_gpsFailure(this, "GPSF"),
_can_loiter_at_sp(false),
_pos_sp_triplet_updated(false),
_param_loiter_radius(this, "LOITER_RAD"),
_param_acceptance_radius(this, "ACC_RAD")
_param_acceptance_radius(this, "ACC_RAD"),
_param_datalinkloss_obc(this, "DLL_OBC"),
_param_rcloss_obc(this, "RCL_OBC")
{
/* Create a list of our possible navigation types */
_navigation_mode_array[0] = &_mission;
_navigation_mode_array[1] = &_loiter;
_navigation_mode_array[2] = &_rtl;
_navigation_mode_array[3] = &_offboard;
_navigation_mode_array[4] = &_dataLinkLoss;
_navigation_mode_array[5] = &_engineFailure;
_navigation_mode_array[6] = &_gpsFailure;
_navigation_mode_array[7] = &_rcLoss;
updateParams();
}
@ -170,6 +189,18 @@ Navigator::global_position_update()
orb_copy(ORB_ID(vehicle_global_position), _global_pos_sub, &_global_pos);
}
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);
}
void
Navigator::home_position_update()
{
@ -221,6 +252,7 @@ Navigator::task_main()
warnx("Initializing..");
_mavlink_fd = open(MAVLINK_LOG_DEVICE, 0);
_geofence.setMavlinkFd(_mavlink_fd);
/* Try to load the geofence:
* if /fs/microsd/etc/geofence.txt load from this file
@ -232,6 +264,7 @@ Navigator::task_main()
_geofence.loadFromFile(GEOFENCE_FILENAME);
} else {
mavlink_log_critical(_mavlink_fd, "#audio: No geofence file");
if (_geofence.clearDm() > 0)
warnx("Geofence cleared");
else
@ -240,6 +273,8 @@ 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));
_control_mode_sub = orb_subscribe(ORB_ID(vehicle_control_mode));
@ -253,6 +288,8 @@ 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();
params_update();
@ -264,7 +301,7 @@ Navigator::task_main()
const hrt_abstime mavlink_open_interval = 500000;
/* wakeup source(s) */
struct pollfd fds[6];
struct pollfd fds[8];
/* Setup of loop */
fds[0].fd = _global_pos_sub;
@ -279,6 +316,10 @@ Navigator::task_main()
fds[4].events = POLLIN;
fds[5].fd = _param_update_sub;
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) {
@ -303,6 +344,21 @@ Navigator::task_main()
_mavlink_fd = open(MAVLINK_LOG_DEVICE, 0);
}
static 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();
}
/* parameters updated */
if (fds[5].revents & POLLIN) {
params_update();
@ -332,9 +388,23 @@ Navigator::task_main()
/* global position updated */
if (fds[0].revents & POLLIN) {
global_position_update();
static int gposcounter = 0;
if (_geofence.getSource() == Geofence::GF_SOURCE_GLOBALPOS) {
have_geofence_position_data = true;
}
gposcounter++;
}
/* Check geofence violation */
if (!_geofence.inside(&_global_pos)) {
/* Check geofence violation */
static hrt_abstime last_geofence_check = 0;
if (have_geofence_position_data && hrt_elapsed_time(&last_geofence_check) > GEOFENCE_CHECK_INTERVAL) {
bool inside = _geofence.inside(_global_pos, _gps_pos, _sensor_combined.baro_alt_meter);
last_geofence_check = hrt_absolute_time();
have_geofence_position_data = false;
if (!inside) {
/* inform other apps via the mission result */
_mission_result.geofence_violated = true;
publish_mission_result();
/* Issue a warning about the geofence violation once */
if (!_geofence_violation_warning_sent) {
@ -342,6 +412,9 @@ Navigator::task_main()
_geofence_violation_warning_sent = true;
}
} else {
/* inform other apps via the mission result */
_mission_result.geofence_violated = false;
publish_mission_result();
/* Reset the _geofence_violation_warning_sent field */
_geofence_violation_warning_sent = false;
}
@ -364,11 +437,30 @@ Navigator::task_main()
case NAVIGATION_STATE_AUTO_LOITER:
_navigation_mode = &_loiter;
break;
case NAVIGATION_STATE_AUTO_RCRECOVER:
if (_param_rcloss_obc.get() != 0) {
_navigation_mode = &_rcLoss;
} else {
_navigation_mode = &_rtl;
}
break;
case NAVIGATION_STATE_AUTO_RTL:
_navigation_mode = &_rtl;
_navigation_mode = &_rtl;
break;
case NAVIGATION_STATE_AUTO_RTGS:
_navigation_mode = &_rtl; /* TODO: change this to something else */
/* Use complex data link loss mode only when enabled via param
* otherwise use rtl */
if (_param_datalinkloss_obc.get() != 0) {
_navigation_mode = &_dataLinkLoss;
} else {
_navigation_mode = &_rtl;
}
break;
case NAVIGATION_STATE_AUTO_LANDENGFAIL:
_navigation_mode = &_engineFailure;
break;
case NAVIGATION_STATE_AUTO_LANDGPSFAIL:
_navigation_mode = &_gpsFailure;
break;
case NAVIGATION_STATE_OFFBOARD:
_navigation_mode = &_offboard;
@ -442,7 +534,7 @@ Navigator::status()
// warnx("Compass heading in degrees %5.5f", (double)(_global_pos.yaw * M_RAD_TO_DEG_F));
// }
if (_fence_valid) {
if (_geofence.valid()) {
warnx("Geofence is valid");
/* TODO: needed? */
// warnx("Vertex longitude latitude");
@ -450,7 +542,7 @@ Navigator::status()
// warnx("%6u %9.5f %8.5f", i, (double)_fence.vertices[i].lon, (double)_fence.vertices[i].lat);
} else {
warnx("Geofence not set");
warnx("Geofence not set (no /etc/geofence.txt on microsd) or not valid");
}
}
@ -534,3 +626,34 @@ int navigator_main(int argc, char *argv[])
return 0;
}
void
Navigator::publish_mission_result()
{
/* lazily publish the mission result only once available */
if (_mission_result_pub > 0) {
/* publish mission result */
orb_publish(ORB_ID(mission_result), _mission_result_pub, &_mission_result);
} else {
/* advertise and publish */
_mission_result_pub = orb_advertise(ORB_ID(mission_result), &_mission_result);
}
/* reset reached bool */
_mission_result.reached = false;
_mission_result.finished = false;
}
void
Navigator::publish_att_sp()
{
/* lazily publish the attitude sp only once available */
if (_att_sp_pub > 0) {
/* publish att sp*/
orb_publish(ORB_ID(vehicle_attitude_setpoint), _att_sp_pub, &_att_sp);
} else {
/* advertise and publish */
_att_sp_pub = orb_advertise(ORB_ID(vehicle_attitude_setpoint), &_att_sp);
}
}

5
src/modules/navigator/navigator_mode.cpp
View File

@ -43,7 +43,7 @@
#include "navigator.h"
NavigatorMode::NavigatorMode(Navigator *navigator, const char *name) :
SuperBlock(NULL, name),
SuperBlock(navigator, name),
_navigator(navigator),
_first_run(true)
{
@ -63,6 +63,9 @@ NavigatorMode::run(bool active) {
if (_first_run) {
/* first run */
_first_run = false;
/* Reset stay in failsafe flag */
_navigator->get_mission_result()->stay_in_failsafe = false;
_navigator->publish_mission_result();
on_activation();
} else {

54
src/modules/navigator/navigator_params.c
View File

@ -37,6 +37,7 @@
* Parameters for navigator in general
*
* @author Julian Oes <julian@oes.ch>
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#include <nuttx/config.h>
@ -64,3 +65,56 @@ PARAM_DEFINE_FLOAT(NAV_LOITER_RAD, 50.0f);
* @group Mission
*/
PARAM_DEFINE_FLOAT(NAV_ACC_RAD, 25.0f);
/**
* Set OBC mode for data link loss
*
* If set to 1 the behaviour on data link loss is set to a mode according to the OBC rules
*
* @min 0
* @group Mission
*/
PARAM_DEFINE_INT32(NAV_DLL_OBC, 0);
/**
* Set OBC mode for rc loss
*
* If set to 1 the behaviour on data link loss is set to a mode according to the OBC rules
*
* @min 0
* @group Mission
*/
PARAM_DEFINE_INT32(NAV_RCL_OBC, 0);
/**
* Airfield home Lat
*
* Latitude of airfield home waypoint
*
* @unit degrees * 1e7
* @min 0.0
* @group DLL
*/
PARAM_DEFINE_INT32(NAV_AH_LAT, -265847810);
/**
* Airfield home Lon
*
* Longitude of airfield home waypoint
*
* @unit degrees * 1e7
* @min 0.0
* @group DLL
*/
PARAM_DEFINE_INT32(NAV_AH_LON, 1518423250);
/**
* Airfield home alt
*
* Altitude of airfield home waypoint
*
* @unit m
* @min 0.0
* @group DLL
*/
PARAM_DEFINE_FLOAT(NAV_AH_ALT, 600.0f);

182
src/modules/navigator/rcloss.cpp Normal file
View File

@ -0,0 +1,182 @@
/****************************************************************************
*
* Copyright (c) 2013-2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file rcloss.cpp
* Helper class for RC Loss Mode according to the OBC rules
*
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <fcntl.h>
#include <mavlink/mavlink_log.h>
#include <systemlib/err.h>
#include <geo/geo.h>
#include <uORB/uORB.h>
#include <uORB/topics/mission.h>
#include <uORB/topics/home_position.h>
#include "navigator.h"
#include "datalinkloss.h"
#define DELAY_SIGMA 0.01f
RCLoss::RCLoss(Navigator *navigator, const char *name) :
MissionBlock(navigator, name),
_param_loitertime(this, "LT"),
_rcl_state(RCL_STATE_NONE)
{
/* load initial params */
updateParams();
/* initial reset */
on_inactive();
}
RCLoss::~RCLoss()
{
}
void
RCLoss::on_inactive()
{
/* reset RCL state only if setpoint moved */
if (!_navigator->get_can_loiter_at_sp()) {
_rcl_state = RCL_STATE_NONE;
}
}
void
RCLoss::on_activation()
{
_rcl_state = RCL_STATE_NONE;
updateParams();
advance_rcl();
set_rcl_item();
}
void
RCLoss::on_active()
{
if (is_mission_item_reached()) {
updateParams();
advance_rcl();
set_rcl_item();
}
}
void
RCLoss::set_rcl_item()
{
struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
set_previous_pos_setpoint();
_navigator->set_can_loiter_at_sp(false);
switch (_rcl_state) {
case RCL_STATE_LOITER: {
_mission_item.lat = _navigator->get_global_position()->lat;
_mission_item.lon = _navigator->get_global_position()->lon;
_mission_item.altitude = _navigator->get_global_position()->alt;
_mission_item.altitude_is_relative = false;
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _navigator->get_loiter_radius();
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_LOITER_TIME_LIMIT;
_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
_mission_item.time_inside = _param_loitertime.get() < 0.0f ? 0.0f : _param_loitertime.get();
_mission_item.pitch_min = 0.0f;
_mission_item.autocontinue = true;
_mission_item.origin = ORIGIN_ONBOARD;
_navigator->set_can_loiter_at_sp(true);
break;
}
case RCL_STATE_TERMINATE: {
/* Request flight termination from the commander */
_navigator->get_mission_result()->flight_termination = true;
_navigator->publish_mission_result();
warnx("rc not recovered: request flight termination");
pos_sp_triplet->previous.valid = false;
pos_sp_triplet->current.valid = false;
pos_sp_triplet->next.valid = false;
break;
}
default:
break;
}
reset_mission_item_reached();
/* convert mission item to current position setpoint and make it valid */
mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
pos_sp_triplet->next.valid = false;
_navigator->set_position_setpoint_triplet_updated();
}
void
RCLoss::advance_rcl()
{
switch (_rcl_state) {
case RCL_STATE_NONE:
if (_param_loitertime.get() > 0.0f) {
warnx("RC loss, OBC mode, loiter");
mavlink_log_info(_navigator->get_mavlink_fd(), "#audio: rc loss, loitering");
_rcl_state = RCL_STATE_LOITER;
} else {
warnx("RC loss, OBC mode, slip loiter, terminate");
mavlink_log_info(_navigator->get_mavlink_fd(), "#audio: rc loss, terminating");
_rcl_state = RCL_STATE_TERMINATE;
_navigator->get_mission_result()->stay_in_failsafe = true;
_navigator->publish_mission_result();
}
break;
case RCL_STATE_LOITER:
_rcl_state = RCL_STATE_TERMINATE;
warnx("time is up, no RC regain, terminating");
mavlink_log_info(_navigator->get_mavlink_fd(), "#audio: RC not regained, terminating");
_navigator->get_mission_result()->stay_in_failsafe = true;
_navigator->publish_mission_result();
break;
case RCL_STATE_TERMINATE:
warnx("rcl end");
_rcl_state = RCL_STATE_END;
break;
default:
break;
}
}

88
src/modules/navigator/rcloss.h Normal file
View File

@ -0,0 +1,88 @@
/***************************************************************************
*
* Copyright (c) 2013-2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file rcloss.h
* Helper class for RC Loss Mode acording to the OBC rules
*
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#ifndef NAVIGATOR_RCLOSS_H
#define NAVIGATOR_RCLOSS_H
#include <controllib/blocks.hpp>
#include <controllib/block/BlockParam.hpp>
#include <uORB/Subscription.hpp>
#include "navigator_mode.h"
#include "mission_block.h"
class Navigator;
class RCLoss : public MissionBlock
{
public:
RCLoss(Navigator *navigator, const char *name);
~RCLoss();
virtual void on_inactive();
virtual void on_activation();
virtual void on_active();
private:
/* Params */
control::BlockParamFloat _param_loitertime;
enum RCLState {
RCL_STATE_NONE = 0,
RCL_STATE_LOITER = 1,
RCL_STATE_TERMINATE = 2,
RCL_STATE_END = 3
} _rcl_state;
/**
* Set the RCL item
*/
void set_rcl_item();
/**
* Move to next RCL item
*/
void advance_rcl();
};
#endif

60
src/modules/navigator/rcloss_params.c Normal file
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@ -0,0 +1,60 @@
/****************************************************************************
*
* Copyright (c) 2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file rcloss_params.c
*
* Parameters for RC Loss (OBC)
*
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#include <nuttx/config.h>
#include <systemlib/param/param.h>
/*
* OBC RC Loss mode parameters, accessible via MAVLink
*/
/**
* Loiter Time
*
* The amount of time in seconds the system should loiter at current position before termination
* Set to -1 to make the system skip loitering
*
* @unit seconds
* @min -1.0
* @group RCL
*/
PARAM_DEFINE_FLOAT(NAV_RCL_LT, 120.0f);

6
src/modules/navigator/rtl.cpp
View File

@ -58,9 +58,9 @@
RTL::RTL(Navigator *navigator, const char *name) :
MissionBlock(navigator, name),
_rtl_state(RTL_STATE_NONE),
_param_return_alt(this, "RETURN_ALT"),
_param_descend_alt(this, "DESCEND_ALT"),
_param_land_delay(this, "LAND_DELAY")
_param_return_alt(this, "RTL_RETURN_ALT", false),
_param_descend_alt(this, "RTL_DESCEND_ALT", false),
_param_land_delay(this, "RTL_LAND_DELAY", false)
{
/* load initial params */
updateParams();

41
src/modules/systemlib/circuit_breaker.c
View File

@ -95,6 +95,47 @@ PARAM_DEFINE_INT32(CBRK_IO_SAFETY, 0);
*/
PARAM_DEFINE_INT32(CBRK_AIRSPD_CHK, 0);
/**
* Circuit breaker for flight termination
*
* Setting this parameter to 121212 will disable the flight termination action.
* --> The IO driver will not do flight termination if requested by the FMU
* WARNING: ENABLING THIS CIRCUIT BREAKER IS AT OWN RISK
*
* @min 0
* @max 121212
* @group Circuit Breaker
*/
PARAM_DEFINE_INT32(CBRK_FLIGHTTERM, 121212);
/**
* Circuit breaker for engine failure detection
*
* Setting this parameter to 284953 will disable the engine failure detection.
* If the aircraft is in engine failure mode the enine failure flag will be
* set to healthy
* WARNING: ENABLING THIS CIRCUIT BREAKER IS AT OWN RISK
*
* @min 0
* @max 284953
* @group Circuit Breaker
*/
PARAM_DEFINE_INT32(CBRK_ENGINEFAIL, 284953);
/**
* Circuit breaker for gps failure detection
*
* Setting this parameter to 240024 will disable the gps failure detection.
* If the aircraft is in gps failure mode the gps failure flag will be
* set to healthy
* WARNING: ENABLING THIS CIRCUIT BREAKER IS AT OWN RISK
*
* @min 0
* @max 240024
* @group Circuit Breaker
*/
PARAM_DEFINE_INT32(CBRK_GPSFAIL, 240024);
bool circuit_breaker_enabled(const char* breaker, int32_t magic)
{
int32_t val;

3
src/modules/systemlib/circuit_breaker.h
View File

@ -53,6 +53,9 @@
#define CBRK_RATE_CTRL_KEY 140253
#define CBRK_IO_SAFETY_KEY 22027
#define CBRK_AIRSPD_CHK_KEY 162128
#define CBRK_FLIGHTTERM_KEY 121212
#define CBRK_ENGINEFAIL_KEY 284953
#define CBRK_GPSFAIL_KEY 240024
#include <stdbool.h>

7
src/modules/uORB/topics/mission_result.h
View File

@ -55,8 +55,11 @@ struct mission_result_s
{
unsigned seq_reached; /**< Sequence of the mission item which has been reached */
unsigned seq_current; /**< Sequence of the current mission item */
bool reached; /**< true if mission has been reached */
bool finished; /**< true if mission has been completed */
bool reached; /**< true if mission has been reached */
bool finished; /**< true if mission has been completed */
bool stay_in_failsafe; /**< true if the commander should not switch out of the failsafe mode*/
bool geofence_violated; /**< true if the geofence is violated */
bool flight_termination; /**< true if the navigator demands a flight termination from the commander app */
};
/**

2
src/modules/uORB/topics/telemetry_status.h
View File

@ -67,6 +67,8 @@ struct telemetry_status_s {
uint8_t noise; /**< background noise level */
uint8_t remote_noise; /**< remote background noise level */
uint8_t txbuf; /**< how full the tx buffer is as a percentage */
uint8_t system_id; /**< system id of the remote system */
uint8_t component_id; /**< component id of the remote system */
};
/**

16
src/modules/uORB/topics/vehicle_status.h
View File

@ -102,7 +102,10 @@ typedef enum {
NAVIGATION_STATE_AUTO_MISSION, /**< Auto mission mode */
NAVIGATION_STATE_AUTO_LOITER, /**< Auto loiter mode */
NAVIGATION_STATE_AUTO_RTL, /**< Auto return to launch mode */
NAVIGATION_STATE_AUTO_RCRECOVER, /**< RC recover mode */
NAVIGATION_STATE_AUTO_RTGS, /**< Auto return to groundstation on data link loss */
NAVIGATION_STATE_AUTO_LANDENGFAIL, /**< Auto land on engine failure */
NAVIGATION_STATE_AUTO_LANDGPSFAIL, /**< Auto land on gps failure (e.g. open loop loiter down) */
NAVIGATION_STATE_ACRO, /**< Acro mode */
NAVIGATION_STATE_LAND, /**< Land mode */
NAVIGATION_STATE_DESCEND, /**< Descend mode (no position control) */
@ -198,9 +201,18 @@ struct vehicle_status_s {
bool rc_signal_found_once;
bool rc_signal_lost; /**< true if RC reception lost */
bool rc_signal_lost_cmd; /**< true if RC lost mode is commanded */
bool rc_input_blocked; /**< set if RC input should be ignored */
bool data_link_lost; /**< datalink to GCS lost */
bool data_link_lost; /**< datalink to GCS lost */
bool data_link_lost_cmd; /**< datalink to GCS lost mode commanded */
uint8_t data_link_lost_counter; /**< counts unique data link lost events */
bool engine_failure; /** Set to true if an engine failure is detected */
bool engine_failure_cmd; /** Set to true if an engine failure mode is commanded */
bool gps_failure; /** Set to true if a gps failure is detected */
bool gps_failure_cmd; /** Set to true if a gps failure mode is commanded */
bool barometer_failure; /** Set to true if a barometer failure is detected */
bool offboard_control_signal_found_once;
bool offboard_control_signal_lost;
@ -227,6 +239,8 @@ struct vehicle_status_s {
bool circuit_breaker_engaged_power_check;
bool circuit_breaker_engaged_airspd_check;
bool circuit_breaker_engaged_enginefailure_check;
bool circuit_breaker_engaged_gpsfailure_check;
};
/**