mirror of https://github.com/ArduPilot/ardupilot
105 lines
2.7 KiB
C++
105 lines
2.7 KiB
C++
#include "Tracker.h"
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/*
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update INS and attitude
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*/
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void Tracker::update_ahrs()
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{
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ahrs.update();
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}
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/*
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initialise compass's location used for declination
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*/
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void Tracker::init_compass_location(void)
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{
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// update initial location used for declination
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if (!compass_init_location) {
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Location loc;
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if (ahrs.get_position(loc)) {
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compass.set_initial_location(loc.lat, loc.lng);
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compass_init_location = true;
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}
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}
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}
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/*
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read and update compass
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*/
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void Tracker::update_compass(void)
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{
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if (AP::compass().enabled() && compass.read()) {
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ahrs.set_compass(&compass);
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}
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}
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// Save compass offsets
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void Tracker::compass_save() {
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if (AP::compass().enabled() &&
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compass.get_learn_type() >= Compass::LEARN_INTERNAL &&
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!hal.util->get_soft_armed()) {
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compass.save_offsets();
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}
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}
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/*
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Accel calibration
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*/
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void Tracker::accel_cal_update() {
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if (hal.util->get_soft_armed()) {
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return;
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}
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ins.acal_update();
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float trim_roll, trim_pitch;
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if (ins.get_new_trim(trim_roll, trim_pitch)) {
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ahrs.set_trim(Vector3f(trim_roll, trim_pitch, 0));
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}
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}
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/*
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read the GPS
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*/
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void Tracker::update_GPS(void)
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{
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gps.update();
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static uint32_t last_gps_msg_ms;
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static uint8_t ground_start_count = 5;
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if (gps.last_message_time_ms() != last_gps_msg_ms &&
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gps.status() >= AP_GPS::GPS_OK_FIX_3D) {
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last_gps_msg_ms = gps.last_message_time_ms();
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if (ground_start_count > 1) {
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ground_start_count--;
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} else if (ground_start_count == 1) {
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// We countdown N number of good GPS fixes
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// so that the altitude is more accurate
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// -------------------------------------
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if (current_loc.lat == 0 && current_loc.lng == 0) {
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ground_start_count = 5;
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} else {
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// Now have an initial GPS position
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// use it as the HOME position in future startups
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current_loc = gps.location();
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if (!set_home(current_loc)) {
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// silently ignored
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}
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if (AP::compass().enabled()) {
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// Set compass declination automatically
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compass.set_initial_location(gps.location().lat, gps.location().lng);
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}
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ground_start_count = 0;
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}
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}
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}
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}
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void Tracker::handle_battery_failsafe(const char* type_str, const int8_t action)
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{
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// NOP
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// useful failsafes in the future would include actually recalling the vehicle
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// that is tracked before the tracker loses power to continue tracking it
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}
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