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79 lines
3.4 KiB
C++
79 lines
3.4 KiB
C++
/****************************************************************************
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*
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* Copyright (c) 2019 PX4 Development Team. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#include "../PreFlightCheck.hpp"
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#include <HealthFlags.h>
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#include <lib/parameters/param.h>
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#include <mathlib/mathlib.h>
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#include <systemlib/mavlink_log.h>
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#include <uORB/Subscription.hpp>
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#include <uORB/topics/subsystem_info.h>
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#include <uORB/topics/sensor_preflight.h>
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// return false if the magnetomer measurements are inconsistent
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bool PreFlightCheck::magConsistencyCheck(orb_advert_t *mavlink_log_pub, vehicle_status_s &status,
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const bool report_status)
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{
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bool pass = false; // flag for result of checks
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// get the sensor preflight data
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uORB::SubscriptionData<sensor_preflight_s> sensors_sub{ORB_ID(sensor_preflight)};
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sensors_sub.update();
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const sensor_preflight_s &sensors = sensors_sub.get();
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if (sensors.timestamp == 0) {
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// can happen if not advertised (yet)
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pass = true;
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}
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// Use the difference between sensors to detect a bad calibration, orientation or magnetic interference.
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// If a single sensor is fitted, the value being checked will be zero so this check will always pass.
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int32_t angle_difference_limit_deg;
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param_get(param_find("COM_ARM_MAG_ANG"), &angle_difference_limit_deg);
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pass = pass || angle_difference_limit_deg < 0; // disabled, pass check
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pass = pass || sensors.mag_inconsistency_angle < math::radians<float>(angle_difference_limit_deg);
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if (!pass && report_status) {
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mavlink_log_critical(mavlink_log_pub, "Preflight Fail: Compasses %d° inconsistent",
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static_cast<int>(math::degrees<float>(sensors.mag_inconsistency_angle)));
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mavlink_log_critical(mavlink_log_pub, "Please check orientations and recalibrate");
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set_health_flags_healthy(subsystem_info_s::SUBSYSTEM_TYPE_MAG, false, status);
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set_health_flags_healthy(subsystem_info_s::SUBSYSTEM_TYPE_MAG2, false, status);
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}
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return pass;
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}
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