diff options
Diffstat (limited to 'src/modules/commander/gyro_calibration.cpp')
-rw-r--r-- | src/modules/commander/gyro_calibration.cpp | 270 |
1 files changed, 139 insertions, 131 deletions
diff --git a/src/modules/commander/gyro_calibration.cpp b/src/modules/commander/gyro_calibration.cpp index 369e6da62..30cd0d48d 100644 --- a/src/modules/commander/gyro_calibration.cpp +++ b/src/modules/commander/gyro_calibration.cpp @@ -33,10 +33,12 @@ /** * @file gyro_calibration.cpp + * * Gyroscope calibration routine */ #include "gyro_calibration.h" +#include "calibration_messages.h" #include "commander_helper.h" #include <stdio.h> @@ -56,21 +58,14 @@ #endif static const int ERROR = -1; +static const char *sensor_name = "gyro"; + int do_gyro_calibration(int mavlink_fd) { - mavlink_log_info(mavlink_fd, "Gyro calibration starting, do not move unit."); - - const unsigned calibration_count = 5000; - - int sub_sensor_combined = orb_subscribe(ORB_ID(sensor_combined)); - struct sensor_combined_s raw; + mavlink_log_info(mavlink_fd, CAL_STARTED_MSG, sensor_name); + mavlink_log_info(mavlink_fd, "don't move system"); - unsigned calibration_counter = 0; - float gyro_offset[3] = {0.0f, 0.0f, 0.0f}; - - /* set offsets to zero */ - int fd = open(GYRO_DEVICE_PATH, 0); - struct gyro_scale gscale_null = { + struct gyro_scale gyro_scale = { 0.0f, 1.0f, 0.0f, @@ -79,97 +74,100 @@ int do_gyro_calibration(int mavlink_fd) 1.0f, }; - if (OK != ioctl(fd, GYROIOCSSCALE, (long unsigned int)&gscale_null)) - warn("WARNING: failed to set scale / offsets for gyro"); + int res = OK; + /* reset all offsets to zero and all scales to one */ + int fd = open(GYRO_DEVICE_PATH, 0); + res = ioctl(fd, GYROIOCSSCALE, (long unsigned int)&gyro_scale); close(fd); - unsigned poll_errcount = 0; - - while (calibration_counter < calibration_count) { + if (res != OK) { + mavlink_log_critical(mavlink_fd, CAL_FAILED_RESET_CAL_MSG); + } - /* wait blocking for new data */ - struct pollfd fds[1]; - fds[0].fd = sub_sensor_combined; - fds[0].events = POLLIN; + if (res == OK) { + /* determine gyro mean values */ + const unsigned calibration_count = 5000; + unsigned calibration_counter = 0; + unsigned poll_errcount = 0; + + /* subscribe to gyro sensor topic */ + int sub_sensor_gyro = orb_subscribe(ORB_ID(sensor_gyro)); + struct gyro_report gyro_report; + + while (calibration_counter < calibration_count) { + /* wait blocking for new data */ + struct pollfd fds[1]; + fds[0].fd = sub_sensor_gyro; + fds[0].events = POLLIN; + + int poll_ret = poll(fds, 1, 1000); + + if (poll_ret > 0) { + orb_copy(ORB_ID(sensor_gyro), sub_sensor_gyro, &gyro_report); + gyro_scale.x_offset += gyro_report.x; + gyro_scale.y_offset += gyro_report.y; + gyro_scale.z_offset += gyro_report.z; + calibration_counter++; + + if (calibration_counter % (calibration_count / 20) == 0) + mavlink_log_info(mavlink_fd, CAL_PROGRESS_MSG, sensor_name, (calibration_counter * 100) / calibration_count); + + } else { + poll_errcount++; + } + + if (poll_errcount > 1000) { + mavlink_log_critical(mavlink_fd, CAL_FAILED_SENSOR_MSG); + res = ERROR; + break; + } + } - int poll_ret = poll(fds, 1, 1000); + close(sub_sensor_gyro); - if (poll_ret > 0) { - orb_copy(ORB_ID(sensor_combined), sub_sensor_combined, &raw); - gyro_offset[0] += raw.gyro_rad_s[0]; - gyro_offset[1] += raw.gyro_rad_s[1]; - gyro_offset[2] += raw.gyro_rad_s[2]; - calibration_counter++; - if (calibration_counter % (calibration_count / 20) == 0) - mavlink_log_info(mavlink_fd, "gyro cal progress <%u> percent", (calibration_counter * 100) / calibration_count); - - } else { - poll_errcount++; - } + gyro_scale.x_offset /= calibration_count; + gyro_scale.y_offset /= calibration_count; + gyro_scale.z_offset /= calibration_count; + } - if (poll_errcount > 1000) { - mavlink_log_info(mavlink_fd, "ERROR: Failed reading gyro sensor"); - close(sub_sensor_combined); - return ERROR; + if (res == OK) { + /* check offsets */ + if (!isfinite(gyro_scale.x_offset) || !isfinite(gyro_scale.y_offset) || !isfinite(gyro_scale.z_offset)) { + mavlink_log_critical(mavlink_fd, "ERROR: offset is NaN"); + res = ERROR; } } - gyro_offset[0] = gyro_offset[0] / calibration_count; - gyro_offset[1] = gyro_offset[1] / calibration_count; - gyro_offset[2] = gyro_offset[2] / calibration_count; - - - if (isfinite(gyro_offset[0]) && isfinite(gyro_offset[1]) && isfinite(gyro_offset[2])) { - - if (param_set(param_find("SENS_GYRO_XOFF"), &(gyro_offset[0])) - || param_set(param_find("SENS_GYRO_YOFF"), &(gyro_offset[1])) - || param_set(param_find("SENS_GYRO_ZOFF"), &(gyro_offset[2]))) { - mavlink_log_critical(mavlink_fd, "Setting gyro offsets failed!"); + if (res == OK) { + /* set offset parameters to new values */ + if (param_set(param_find("SENS_GYRO_XOFF"), &(gyro_scale.x_offset)) + || param_set(param_find("SENS_GYRO_YOFF"), &(gyro_scale.y_offset)) + || param_set(param_find("SENS_GYRO_ZOFF"), &(gyro_scale.z_offset))) { + mavlink_log_critical(mavlink_fd, "ERROR: failed to set offset params"); + res = ERROR; } + } - /* set offsets to actual value */ - fd = open(GYRO_DEVICE_PATH, 0); - struct gyro_scale gscale = { - gyro_offset[0], - 1.0f, - gyro_offset[1], - 1.0f, - gyro_offset[2], - 1.0f, - }; - - if (OK != ioctl(fd, GYROIOCSSCALE, (long unsigned int)&gscale)) - warn("WARNING: failed to set scale / offsets for gyro"); - - close(fd); +#if 0 + /* beep on offset calibration end */ + mavlink_log_info(mavlink_fd, "gyro offset calibration done"); + tune_neutral(); - /* auto-save to EEPROM */ - int save_ret = param_save_default(); + /* scale calibration */ + /* this was only a proof of concept and is currently not working. scaling will be set to 1.0 for now. */ - if (save_ret != 0) { - warnx("WARNING: auto-save of params to storage failed"); - mavlink_log_critical(mavlink_fd, "gyro store failed"); - close(sub_sensor_combined); - return ERROR; - } + mavlink_log_info(mavlink_fd, "offset done. Rotate for scale 30x or wait 5s to skip."); + warnx("offset calibration finished. Rotate for scale 30x, or do not rotate and wait for 5 seconds to skip."); - tune_neutral(); - /* third beep by cal end routine */ + /* apply new offsets */ + fd = open(GYRO_DEVICE_PATH, 0); - } else { - mavlink_log_info(mavlink_fd, "offset cal FAILED (NaN)"); - close(sub_sensor_combined); - return ERROR; - } + if (OK != ioctl(fd, GYROIOCSSCALE, (long unsigned int)&gyro_scale)) + warn("WARNING: failed to apply new offsets for gyro"); - mavlink_log_info(mavlink_fd, "offset calibration done."); + close(fd); -#if 0 - /*** --- SCALING --- ***/ - - mavlink_log_info(mavlink_fd, "offset done. Rotate for scale 30x or wait 5s to skip."); - warnx("offset calibration finished. Rotate for scale 30x, or do not rotate and wait for 5 seconds to skip."); unsigned rotations_count = 30; float gyro_integral = 0.0f; @@ -178,9 +176,11 @@ int do_gyro_calibration(int mavlink_fd) // XXX change to mag topic orb_copy(ORB_ID(sensor_combined), sub_sensor_combined, &raw); - float mag_last = -atan2f(raw.magnetometer_ga[1],raw.magnetometer_ga[0]); - if (mag_last > M_PI_F) mag_last -= 2*M_PI_F; - if (mag_last < -M_PI_F) mag_last += 2*M_PI_F; + float mag_last = -atan2f(raw.magnetometer_ga[1], raw.magnetometer_ga[0]); + + if (mag_last > M_PI_F) mag_last -= 2 * M_PI_F; + + if (mag_last < -M_PI_F) mag_last += 2 * M_PI_F; uint64_t last_time = hrt_absolute_time(); @@ -190,7 +190,7 @@ int do_gyro_calibration(int mavlink_fd) /* abort this loop if not rotated more than 180 degrees within 5 seconds */ if ((fabsf(baseline_integral / (2.0f * M_PI_F)) < 0.6f) - && (hrt_absolute_time() - start_time > 5 * 1e6)) { + && (hrt_absolute_time() - start_time > 5 * 1e6)) { mavlink_log_info(mavlink_fd, "scale skipped, gyro calibration done"); close(sub_sensor_combined); return OK; @@ -218,14 +218,17 @@ int do_gyro_calibration(int mavlink_fd) // calculate error between estimate and measurement // apply declination correction for true heading as well. //float mag = -atan2f(magNav(1),magNav(0)); - float mag = -atan2f(raw.magnetometer_ga[1],raw.magnetometer_ga[0]); - if (mag > M_PI_F) mag -= 2*M_PI_F; - if (mag < -M_PI_F) mag += 2*M_PI_F; + float mag = -atan2f(raw.magnetometer_ga[1], raw.magnetometer_ga[0]); + + if (mag > M_PI_F) mag -= 2 * M_PI_F; + + if (mag < -M_PI_F) mag += 2 * M_PI_F; float diff = mag - mag_last; - if (diff > M_PI_F) diff -= 2*M_PI_F; - if (diff < -M_PI_F) diff += 2*M_PI_F; + if (diff > M_PI_F) diff -= 2 * M_PI_F; + + if (diff < -M_PI_F) diff += 2 * M_PI_F; baseline_integral += diff; mag_last = mag; @@ -235,63 +238,68 @@ int do_gyro_calibration(int mavlink_fd) // warnx("dbg: b: %6.4f, g: %6.4f", (double)baseline_integral, (double)gyro_integral); - // } else if (poll_ret == 0) { - // /* any poll failure for 1s is a reason to abort */ - // mavlink_log_info(mavlink_fd, "gyro calibration aborted, retry"); - // return; + // } else if (poll_ret == 0) { + // /* any poll failure for 1s is a reason to abort */ + // mavlink_log_info(mavlink_fd, "gyro calibration aborted, retry"); + // return; } } float gyro_scale = baseline_integral / gyro_integral; - + warnx("gyro scale: yaw (z): %6.4f", (double)gyro_scale); mavlink_log_info(mavlink_fd, "gyro scale: yaw (z): %6.4f", (double)gyro_scale); -#else - float gyro_scales[] = { 1.0f, 1.0f, 1.0f }; -#endif - + if (!isfinite(gyro_scale.x_scale) || !isfinite(gyro_scale.y_scale) || !isfinite(gyro_scale.z_scale)) { + mavlink_log_info(mavlink_fd, "gyro scale calibration FAILED (NaN)"); + close(sub_sensor_gyro); + mavlink_log_critical(mavlink_fd, "gyro calibration failed"); + return ERROR; + } - if (isfinite(gyro_scales[0]) && isfinite(gyro_scales[1]) && isfinite(gyro_scales[2])) { + /* beep on calibration end */ + mavlink_log_info(mavlink_fd, "gyro scale calibration done"); + tune_neutral(); - if (param_set(param_find("SENS_GYRO_XSCALE"), &(gyro_scales[0])) - || param_set(param_find("SENS_GYRO_YSCALE"), &(gyro_scales[1])) - || param_set(param_find("SENS_GYRO_ZSCALE"), &(gyro_scales[2]))) { - mavlink_log_critical(mavlink_fd, "Setting gyro scale failed!"); +#endif + + if (res == OK) { + /* set scale parameters to new values */ + if (param_set(param_find("SENS_GYRO_XSCALE"), &(gyro_scale.x_scale)) + || param_set(param_find("SENS_GYRO_YSCALE"), &(gyro_scale.y_scale)) + || param_set(param_find("SENS_GYRO_ZSCALE"), &(gyro_scale.z_scale))) { + mavlink_log_critical(mavlink_fd, "ERROR: failed to set scale params"); + res = ERROR; } + } - /* set offsets to actual value */ + if (res == OK) { + /* apply new scaling and offsets */ fd = open(GYRO_DEVICE_PATH, 0); - struct gyro_scale gscale = { - gyro_offset[0], - gyro_scales[0], - gyro_offset[1], - gyro_scales[1], - gyro_offset[2], - gyro_scales[2], - }; - - if (OK != ioctl(fd, GYROIOCSSCALE, (long unsigned int)&gscale)) - warn("WARNING: failed to set scale / offsets for gyro"); - + res = ioctl(fd, GYROIOCSSCALE, (long unsigned int)&gyro_scale); close(fd); + if (res != OK) { + mavlink_log_critical(mavlink_fd, CAL_FAILED_APPLY_CAL_MSG); + } + } + + if (res == OK) { /* auto-save to EEPROM */ - int save_ret = param_save_default(); + res = param_save_default(); - if (save_ret != 0) { - warn("WARNING: auto-save of params to storage failed"); + if (res != OK) { + mavlink_log_critical(mavlink_fd, CAL_FAILED_SAVE_PARAMS_MSG); } + } - mavlink_log_info(mavlink_fd, "gyro calibration done"); + if (res == OK) { + mavlink_log_info(mavlink_fd, CAL_DONE_MSG, sensor_name); - /* third beep by cal end routine */ - close(sub_sensor_combined); - return OK; } else { - mavlink_log_info(mavlink_fd, "gyro calibration FAILED (NaN)"); - close(sub_sensor_combined); - return ERROR; + mavlink_log_info(mavlink_fd, CAL_FAILED_MSG, sensor_name); } + + return res; } |