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43 lines
1.9 KiB
43 lines
1.9 KiB
/// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- |
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// counter to verify landings |
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static uint16_t land_detector = LAND_DETECTOR_TRIGGER; // we assume we are landed |
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// land_complete_maybe - return true if we may have landed (used to reset loiter targets during landing) |
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static bool land_complete_maybe() |
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{ |
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return (ap.land_complete || ap.land_complete_maybe); |
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} |
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// update_land_detector - checks if we have landed and updates the ap.land_complete flag |
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// called at 50hz |
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static void update_land_detector() |
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{ |
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bool climb_rate_low = (abs(climb_rate) < LAND_DETECTOR_CLIMBRATE_MAX); |
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bool target_climb_rate_low = !pos_control.is_active_z() || (pos_control.get_desired_velocity().z <= LAND_DETECTOR_DESIRED_CLIMBRATE_MAX); |
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bool motor_at_lower_limit = motors.limit.throttle_lower; |
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bool throttle_low = (FRAME_CONFIG == HELI_FRAME) || (motors.get_throttle_out() < get_non_takeoff_throttle()); |
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bool not_rotating_fast = (ahrs.get_gyro().length() < LAND_DETECTOR_ROTATION_MAX); |
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if (climb_rate_low && target_climb_rate_low && motor_at_lower_limit && throttle_low && not_rotating_fast) { |
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if (!ap.land_complete) { |
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// increase counter until we hit the trigger then set land complete flag |
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if( land_detector < LAND_DETECTOR_TRIGGER) { |
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land_detector++; |
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}else{ |
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set_land_complete(true); |
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land_detector = LAND_DETECTOR_TRIGGER; |
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} |
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} |
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} else { |
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// we've sensed movement up or down so reset land_detector |
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land_detector = 0; |
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// if throttle output is high then clear landing flag |
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if (motors.get_throttle_out() > get_non_takeoff_throttle()) { |
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set_land_complete(false); |
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} |
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} |
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// set land maybe flag |
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set_land_complete_maybe(land_detector >= LAND_DETECTOR_MAYBE_TRIGGER); |
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}
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