Files
bizhang_-obav/src/modules/commander/Arming/PreFlightCheck/checks/airspeedCheck.cpp
Matthias Grob 1a79f75f94 Commander: start pulling arming related parts into separate folder
* PreFlightCheck: remove unused reportFailures flag
* Commander: pull all pre flight checks together on the PreFlightCheck class
* PreFlightCheck: separate checks into their own files
2019-11-05 11:25:59 -05:00

102 lines
3.6 KiB
C++

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#include "../PreFlightCheck.hpp"
#include <HealthFlags.h>
#include <drivers/drv_hrt.h>
#include <math.h>
#include <systemlib/mavlink_log.h>
#include <uORB/Subscription.hpp>
#include <uORB/topics/airspeed.h>
#include <uORB/topics/subsystem_info.h>
using namespace time_literals;
bool PreFlightCheck::airspeedCheck(orb_advert_t *mavlink_log_pub, vehicle_status_s &status, const bool optional,
const bool report_fail, const bool prearm)
{
bool present = true;
bool success = true;
uORB::SubscriptionData<airspeed_s> airspeed_sub{ORB_ID(airspeed)};
airspeed_sub.update();
const airspeed_s &airspeed = airspeed_sub.get();
if (hrt_elapsed_time(&airspeed.timestamp) > 1_s) {
if (report_fail && !optional) {
mavlink_log_critical(mavlink_log_pub, "Preflight Fail: Airspeed Sensor missing");
}
present = false;
success = false;
goto out;
}
/*
* Check if voter thinks the confidence is low. High-end sensors might have virtually zero noise
* on the bench and trigger false positives of the voter. Therefore only fail this
* for a pre-arm check, as then the cover is off and the natural airflow in the field
* will ensure there is not zero noise.
*/
if (prearm && fabsf(airspeed.confidence) < 0.95f) {
if (report_fail) {
mavlink_log_critical(mavlink_log_pub, "Preflight Fail: Airspeed Sensor stuck");
}
present = true;
success = false;
goto out;
}
/**
* Check if airspeed is higher than 4m/s (accepted max) while the vehicle is landed / not flying
* Negative and positive offsets are considered. Do not check anymore while arming because pitot cover
* might have been removed.
*/
if (fabsf(airspeed.indicated_airspeed_m_s) > 4.0f && !prearm) {
if (report_fail) {
mavlink_log_critical(mavlink_log_pub, "Preflight Fail: check Airspeed Cal or Pitot");
}
present = true;
success = false;
goto out;
}
out:
set_health_flags(subsystem_info_s::SUBSYSTEM_TYPE_DIFFPRESSURE, present, !optional, success, status);
return success;
}