Files
PX4-Autopilot/src/modules/sensors/vehicle_air_data/VehicleAirData.hpp
T
Daniel Agar 0c31f63896 sensors: add baro calibration and cleanup
- sensor_baro.msg use SI (pressure in Pascals)
 - update all barometer drivers to publish directly and remove PX4Barometer helper
 - introduce baro cal (offset) mainly as a mechanism to adjust
relative priority
 - commander: add simple baro cal that sets baro offsets to align with
GPS altitude (if available)
 - create new sensors_status.msg to generalize sensor reporting
2022-03-26 16:08:41 -04:00

134 lines
4.6 KiB
C++

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#pragma once
#include "data_validator/DataValidatorGroup.hpp"
#include <lib/sensor_calibration/Barometer.hpp>
#include <lib/mathlib/math/Limits.hpp>
#include <lib/matrix/matrix/math.hpp>
#include <lib/perf/perf_counter.h>
#include <lib/systemlib/mavlink_log.h>
#include <px4_platform_common/log.h>
#include <px4_platform_common/module_params.h>
#include <px4_platform_common/px4_config.h>
#include <px4_platform_common/px4_work_queue/ScheduledWorkItem.hpp>
#include <uORB/Publication.hpp>
#include <uORB/PublicationMulti.hpp>
#include <uORB/Subscription.hpp>
#include <uORB/SubscriptionMultiArray.hpp>
#include <uORB/SubscriptionCallback.hpp>
#include <uORB/topics/differential_pressure.h>
#include <uORB/topics/parameter_update.h>
#include <uORB/topics/sensor_baro.h>
#include <uORB/topics/sensors_status.h>
#include <uORB/topics/vehicle_air_data.h>
using namespace time_literals;
namespace sensors
{
class VehicleAirData : public ModuleParams, public px4::ScheduledWorkItem
{
public:
VehicleAirData();
~VehicleAirData() override;
bool Start();
void Stop();
void PrintStatus();
private:
void Run() override;
void AirTemperatureUpdate();
void CheckFailover(const hrt_abstime &time_now_us);
bool ParametersUpdate(bool force = false);
void UpdateStatus();
float PressureToAltitude(float pressure_pa, float temperature = 15.f) const;
static constexpr int MAX_SENSOR_COUNT = 4;
uORB::Publication<sensors_status_s> _sensors_status_baro_pub{ORB_ID(sensors_status_baro)};
uORB::Publication<vehicle_air_data_s> _vehicle_air_data_pub{ORB_ID(vehicle_air_data)};
uORB::SubscriptionInterval _parameter_update_sub{ORB_ID(parameter_update), 1_s};
uORB::Subscription _differential_pressure_sub{ORB_ID(differential_pressure)};
uORB::SubscriptionCallbackWorkItem _sensor_sub[MAX_SENSOR_COUNT] {
{this, ORB_ID(sensor_baro), 0},
{this, ORB_ID(sensor_baro), 1},
{this, ORB_ID(sensor_baro), 2},
{this, ORB_ID(sensor_baro), 3},
};
calibration::Barometer _calibration[MAX_SENSOR_COUNT];
perf_counter_t _cycle_perf{perf_alloc(PC_ELAPSED, MODULE_NAME": cycle")};
hrt_abstime _last_error_message{0};
orb_advert_t _mavlink_log_pub{nullptr};
DataValidatorGroup _voter{1};
unsigned _last_failover_count{0};
uint64_t _timestamp_sample_sum[MAX_SENSOR_COUNT] {0};
float _data_sum[MAX_SENSOR_COUNT] {};
float _temperature_sum[MAX_SENSOR_COUNT] {};
int _data_sum_count[MAX_SENSOR_COUNT] {};
hrt_abstime _last_publication_timestamp[MAX_SENSOR_COUNT] {};
float _last_data[MAX_SENSOR_COUNT] {};
bool _advertised[MAX_SENSOR_COUNT] {};
float _sensor_diff[MAX_SENSOR_COUNT] {}; // filtered differences between sensor instances
uint8_t _priority[MAX_SENSOR_COUNT] {};
int8_t _selected_sensor_sub_index{-1};
float _air_temperature_celsius{20.f}; // initialize with typical 20degC ambient temperature
DEFINE_PARAMETERS(
(ParamFloat<px4::params::SENS_BARO_QNH>) _param_sens_baro_qnh,
(ParamFloat<px4::params::SENS_BARO_RATE>) _param_sens_baro_rate
)
};
}; // namespace sensors