Exemplo n.º 1
0
// exit_mission_callback - callback function called from ap-mission when the mission has completed
//      we double check that the flight mode is AUTO to avoid the possibility of ap-mission triggering actions while we're not in AUTO mode
void Plane::exit_mission_callback()
{
    if (control_mode == AUTO) {
        gcs_send_text_fmt(PSTR("Returning to Home"));
        memset(&auto_rtl_command, 0, sizeof(auto_rtl_command));
        auto_rtl_command.content.location = 
            rally.calc_best_rally_or_home_location(current_loc, get_RTL_altitude());
        auto_rtl_command.id = MAV_CMD_NAV_LOITER_UNLIM;
        setup_terrain_target_alt(auto_rtl_command.content.location);
        update_flight_stage();
        setup_glide_slope();
        setup_turn_angle();
        start_command(auto_rtl_command);
    }
}
Exemplo n.º 2
0
void Plane::do_RTL(int32_t rtl_altitude)
{
    auto_state.next_wp_no_crosstrack = true;
    auto_state.no_crosstrack = true;
    prev_WP_loc = current_loc;
    next_WP_loc = rally.calc_best_rally_or_home_location(current_loc, rtl_altitude);
    setup_terrain_target_alt(next_WP_loc);
    set_target_altitude_location(next_WP_loc);

    if (aparm.loiter_radius < 0) {
        loiter.direction = -1;
    } else {
        loiter.direction = 1;
    }

    setup_glide_slope();
    setup_turn_angle();

    if (should_log(MASK_LOG_MODE))
        DataFlash.Log_Write_Mode(control_mode);
}
Exemplo n.º 3
0
/*
 *  check if we have breached the geo-fence
 */
void Plane::geofence_check(bool altitude_check_only)
{
    if (!geofence_enabled()) {
        // switch back to the chosen control mode if still in
        // GUIDED to the return point
        if (geofence_state != nullptr &&
            (g.fence_action == FENCE_ACTION_GUIDED || g.fence_action == FENCE_ACTION_GUIDED_THR_PASS || g.fence_action == FENCE_ACTION_RTL) &&
            (control_mode == GUIDED || control_mode == AVOID_ADSB) &&
            geofence_present() &&
            geofence_state->boundary_uptodate &&
            geofence_state->old_switch_position == oldSwitchPosition &&
            guided_WP_loc.lat == geofence_state->guided_lat &&
            guided_WP_loc.lng == geofence_state->guided_lng) {
            geofence_state->old_switch_position = 254;
            set_mode(get_previous_mode(), MODE_REASON_GCS_COMMAND);
        }
        return;
    }

    /* allocate the geo-fence state if need be */
    if (geofence_state == nullptr || !geofence_state->boundary_uptodate) {
        geofence_load();
        if (!geofence_enabled()) {
            // may have been disabled by load
            return;
        }
    }

    bool outside = false;
    uint8_t breach_type = FENCE_BREACH_NONE;
    struct Location loc;

    // Never trigger a fence breach in the final stage of landing
    if (landing.is_expecting_impact()) {
        return;
    }

    if (geofence_state->floor_enabled && geofence_check_minalt()) {
        outside = true;
        breach_type = FENCE_BREACH_MINALT;
    } else if (geofence_check_maxalt()) {
        outside = true;
        breach_type = FENCE_BREACH_MAXALT;
    } else if (!altitude_check_only && ahrs.get_position(loc)) {
        Vector2l location;
        location.x = loc.lat;
        location.y = loc.lng;
        outside = Polygon_outside(location, &geofence_state->boundary[1], geofence_state->num_points-1);
        if (outside) {
            breach_type = FENCE_BREACH_BOUNDARY;
        }
    }

    if (!outside) {
        if (geofence_state->fence_triggered && !altitude_check_only) {
            // we have moved back inside the fence
            geofence_state->fence_triggered = false;
            gcs_send_text(MAV_SEVERITY_INFO,"Geofence OK");
 #if FENCE_TRIGGERED_PIN > 0
            hal.gpio->pinMode(FENCE_TRIGGERED_PIN, HAL_GPIO_OUTPUT);
            hal.gpio->write(FENCE_TRIGGERED_PIN, 0);
 #endif
            gcs_send_message(MSG_FENCE_STATUS);
        }
        // we're inside, all is good with the world
        return;
    }

    // we are outside the fence
    if (geofence_state->fence_triggered &&
        (control_mode == GUIDED || control_mode == AVOID_ADSB || control_mode == RTL || g.fence_action == FENCE_ACTION_REPORT)) {
        // we have already triggered, don't trigger again until the
        // user disables/re-enables using the fence channel switch
        return;
    }

    // we are outside, and have not previously triggered.
    geofence_state->fence_triggered = true;
    geofence_state->breach_count++;
    geofence_state->breach_time = millis();
    geofence_state->breach_type = breach_type;

 #if FENCE_TRIGGERED_PIN > 0
    hal.gpio->pinMode(FENCE_TRIGGERED_PIN, HAL_GPIO_OUTPUT);
    hal.gpio->write(FENCE_TRIGGERED_PIN, 1);
 #endif

    gcs_send_text(MAV_SEVERITY_NOTICE,"Geofence triggered");
    gcs_send_message(MSG_FENCE_STATUS);

    // see what action the user wants
    switch (g.fence_action) {
    case FENCE_ACTION_REPORT:
        break;

    case FENCE_ACTION_GUIDED:
    case FENCE_ACTION_GUIDED_THR_PASS:
    case FENCE_ACTION_RTL:
        // make sure we don't auto trim the surfaces on this mode change
        int8_t saved_auto_trim = g.auto_trim;
        g.auto_trim.set(0);
        if (g.fence_action == FENCE_ACTION_RTL) {
            set_mode(RTL, MODE_REASON_FENCE_BREACH);
        } else {
            set_mode(GUIDED, MODE_REASON_FENCE_BREACH);
        }
        g.auto_trim.set(saved_auto_trim);

        if (g.fence_ret_rally != 0 || g.fence_action == FENCE_ACTION_RTL) { //return to a rally point
            guided_WP_loc = rally.calc_best_rally_or_home_location(current_loc, get_RTL_altitude());

        } else { //return to fence return point, not a rally point
            if (g.fence_retalt > 0) {
                //fly to the return point using fence_retalt
                guided_WP_loc.alt = home.alt + 100.0f*g.fence_retalt;
            } else if (g.fence_minalt >= g.fence_maxalt) {
                // invalid min/max, use RTL_altitude
                guided_WP_loc.alt = home.alt + g.RTL_altitude_cm;
            } else {
                // fly to the return point, with an altitude half way between
                // min and max
                guided_WP_loc.alt = home.alt + 100.0f*(g.fence_minalt + g.fence_maxalt)/2;
            }
            guided_WP_loc.options = 0;
            guided_WP_loc.lat = geofence_state->boundary[0].x;
            guided_WP_loc.lng = geofence_state->boundary[0].y;
        }
        geofence_state->guided_lat = guided_WP_loc.lat;
        geofence_state->guided_lng = guided_WP_loc.lng;
        geofence_state->old_switch_position = oldSwitchPosition;

        if (g.fence_action != FENCE_ACTION_RTL) { //not needed for RTL mode
            setup_terrain_target_alt(guided_WP_loc);
            set_guided_WP();
        }

        if (g.fence_action == FENCE_ACTION_GUIDED_THR_PASS) {
            guided_throttle_passthru = true;
        }
        break;
    }

}