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Merge branch 'master' into pubsub_cleanup

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This commit is contained in:
Lorenz Meier
2014-01-14 14:14:52 +01:00
parent c4dc310ebd b529e112b8
commit 1f5eda37ab
22 changed files with 666 additions and 230 deletions
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src/modules/commander/commander.cpp
+19 -46
View File
@@ -107,14 +107,9 @@ static const int ERROR = -1;
extern struct system_load_s system_load;
#define LOW_VOLTAGE_BATTERY_HYSTERESIS_TIME_MS 1000.0f
#define CRITICAL_VOLTAGE_BATTERY_HYSTERESIS_TIME_MS 100.0f
/* Decouple update interval and hysteris counters, all depends on intervals */
#define COMMANDER_MONITORING_INTERVAL 50000
#define COMMANDER_MONITORING_LOOPSPERMSEC (1/(COMMANDER_MONITORING_INTERVAL/1000.0f))
#define LOW_VOLTAGE_BATTERY_COUNTER_LIMIT (LOW_VOLTAGE_BATTERY_HYSTERESIS_TIME_MS*COMMANDER_MONITORING_LOOPSPERMSEC)
#define CRITICAL_VOLTAGE_BATTERY_COUNTER_LIMIT (CRITICAL_VOLTAGE_BATTERY_HYSTERESIS_TIME_MS*COMMANDER_MONITORING_LOOPSPERMSEC)
#define MAVLINK_OPEN_INTERVAL 50000
@@ -666,8 +661,6 @@ int commander_thread_main(int argc, char *argv[])
/* Start monitoring loop */
unsigned counter = 0;
unsigned low_voltage_counter = 0;
unsigned critical_voltage_counter = 0;
unsigned stick_off_counter = 0;
unsigned stick_on_counter = 0;
@@ -745,7 +738,6 @@ int commander_thread_main(int argc, char *argv[])
int battery_sub = orb_subscribe(ORB_ID(battery_status));
struct battery_status_s battery;
memset(&battery, 0, sizeof(battery));
battery.voltage_v = 0.0f;
/* Subscribe to subsystem info topic */
int subsys_sub = orb_subscribe(ORB_ID(subsystem_info));
@@ -890,14 +882,12 @@ int commander_thread_main(int argc, char *argv[])
if (updated) {
orb_copy(ORB_ID(battery_status), battery_sub, &battery);
// warnx("bat v: %2.2f", battery.voltage_v);
/* only consider battery voltage if system has been running 2s and battery voltage is higher than 4V */
if (hrt_absolute_time() > start_time + 2000000 && battery.voltage_v > 4.0f) {
status.battery_voltage = battery.voltage_v;
/* only consider battery voltage if system has been running 2s and battery voltage is valid */
if (hrt_absolute_time() > start_time + 2000000 && battery.voltage_filtered_v > 0.0f) {
status.battery_voltage = battery.voltage_filtered_v;
status.battery_current = battery.current_a;
status.condition_battery_voltage_valid = true;
status.battery_remaining = battery_remaining_estimate_voltage(status.battery_voltage);
status.battery_remaining = battery_remaining_estimate_voltage(battery.voltage_filtered_v, battery.discharged_mah);
}
}
@@ -950,46 +940,29 @@ int commander_thread_main(int argc, char *argv[])
//on_usb_power = (stat("/dev/ttyACM0", &statbuf) == 0);
}
// XXX remove later
//warnx("bat remaining: %2.2f", status.battery_remaining);
/* if battery voltage is getting lower, warn using buzzer, etc. */
if (status.condition_battery_voltage_valid && status.battery_remaining < 0.25f && !low_battery_voltage_actions_done) {
//TODO: add filter, or call emergency after n measurements < VOLTAGE_BATTERY_MINIMAL_MILLIVOLTS
if (low_voltage_counter > LOW_VOLTAGE_BATTERY_COUNTER_LIMIT) {
low_battery_voltage_actions_done = true;
mavlink_log_critical(mavlink_fd, "#audio: WARNING: LOW BATTERY");
status.battery_warning = VEHICLE_BATTERY_WARNING_LOW;
status_changed = true;
battery_tune_played = false;
}
low_voltage_counter++;
low_battery_voltage_actions_done = true;
mavlink_log_critical(mavlink_fd, "#audio: WARNING: LOW BATTERY");
status.battery_warning = VEHICLE_BATTERY_WARNING_LOW;
status_changed = true;
battery_tune_played = false;
} else if (status.condition_battery_voltage_valid && status.battery_remaining < 0.1f && !critical_battery_voltage_actions_done && low_battery_voltage_actions_done) {
/* critical battery voltage, this is rather an emergency, change state machine */
if (critical_voltage_counter > CRITICAL_VOLTAGE_BATTERY_COUNTER_LIMIT) {
critical_battery_voltage_actions_done = true;
mavlink_log_critical(mavlink_fd, "#audio: EMERGENCY: CRITICAL BATTERY");
status.battery_warning = VEHICLE_BATTERY_WARNING_CRITICAL;
battery_tune_played = false;
critical_battery_voltage_actions_done = true;
mavlink_log_critical(mavlink_fd, "#audio: EMERGENCY: CRITICAL BATTERY");
status.battery_warning = VEHICLE_BATTERY_WARNING_CRITICAL;
battery_tune_played = false;
if (armed.armed) {
arming_state_transition(&status, &safety, &control_mode, ARMING_STATE_ARMED_ERROR, &armed);
if (armed.armed) {
arming_state_transition(&status, &safety, &control_mode, ARMING_STATE_ARMED_ERROR, &armed);
} else {
arming_state_transition(&status, &safety, &control_mode, ARMING_STATE_STANDBY_ERROR, &armed);
}
status_changed = true;
} else {
arming_state_transition(&status, &safety, &control_mode, ARMING_STATE_STANDBY_ERROR, &armed);
}
critical_voltage_counter++;
} else {
low_voltage_counter = 0;
critical_voltage_counter = 0;
status_changed = true;
}
/* End battery voltage check */
src/modules/commander/commander_helper.cpp
+28 -16
View File
@@ -44,6 +44,7 @@
#include <stdint.h>
#include <stdbool.h>
#include <fcntl.h>
#include <math.h>
#include <uORB/uORB.h>
#include <uORB/topics/vehicle_status.h>
@@ -251,36 +252,47 @@ void rgbled_set_pattern(rgbled_pattern_t *pattern)
ioctl(rgbleds, RGBLED_SET_PATTERN, (unsigned long)pattern);
}
float battery_remaining_estimate_voltage(float voltage)
float battery_remaining_estimate_voltage(float voltage, float discharged)
{
float ret = 0;
static param_t bat_volt_empty;
static param_t bat_volt_full;
static param_t bat_n_cells;
static param_t bat_v_empty_h;
static param_t bat_v_full_h;
static param_t bat_n_cells_h;
static param_t bat_capacity_h;
static float bat_v_empty = 3.2f;
static float bat_v_full = 4.0f;
static int bat_n_cells = 3;
static float bat_capacity = -1.0f;
static bool initialized = false;
static unsigned int counter = 0;
static float ncells = 3;
// XXX change cells to int (and param to INT32)
if (!initialized) {
bat_volt_empty = param_find("BAT_V_EMPTY");
bat_volt_full = param_find("BAT_V_FULL");
bat_n_cells = param_find("BAT_N_CELLS");
bat_v_empty_h = param_find("BAT_V_EMPTY");
bat_v_full_h = param_find("BAT_V_FULL");
bat_n_cells_h = param_find("BAT_N_CELLS");
bat_capacity_h = param_find("BAT_CAPACITY");
initialized = true;
}
static float chemistry_voltage_empty = 3.2f;
static float chemistry_voltage_full = 4.05f;
if (counter % 100 == 0) {
param_get(bat_volt_empty, &chemistry_voltage_empty);
param_get(bat_volt_full, &chemistry_voltage_full);
param_get(bat_n_cells, &ncells);
param_get(bat_v_empty_h, &bat_v_empty);
param_get(bat_v_full_h, &bat_v_full);
param_get(bat_n_cells_h, &bat_n_cells);
param_get(bat_capacity_h, &bat_capacity);
}
counter++;
ret = (voltage - ncells * chemistry_voltage_empty) / (ncells * (chemistry_voltage_full - chemistry_voltage_empty));
/* remaining charge estimate based on voltage */
float remaining_voltage = (voltage - bat_n_cells * bat_v_empty) / (bat_n_cells * (bat_v_full - bat_v_empty));
if (bat_capacity > 0.0f) {
/* if battery capacity is known, use discharged current for estimate, but don't show more than voltage estimate */
ret = fminf(remaining_voltage, 1.0f - discharged / bat_capacity);
} else {
/* else use voltage */
ret = remaining_voltage;
}
/* limit to sane values */
ret = (ret < 0.0f) ? 0.0f : ret;
src/modules/commander/commander_helper.h
+4 -3
View File
@@ -75,12 +75,13 @@ void rgbled_set_mode(rgbled_mode_t mode);
void rgbled_set_pattern(rgbled_pattern_t *pattern);
/**
* Provides a coarse estimate of remaining battery power.
* Estimate remaining battery charge.
*
* The estimate is very basic and based on decharging voltage curves.
* Use integral of current if battery capacity known (BAT_CAPACITY parameter set),
* else use simple estimate based on voltage.
*
* @return the estimated remaining capacity in 0..1
*/
float battery_remaining_estimate_voltage(float voltage);
float battery_remaining_estimate_voltage(float voltage, float discharged);
#endif /* COMMANDER_HELPER_H_ */
src/modules/commander/commander_params.c
+4 -3
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@@ -50,6 +50,7 @@ PARAM_DEFINE_FLOAT(NAV_TAKEOFF_GAP, 3.0f);
PARAM_DEFINE_FLOAT(TRIM_ROLL, 0.0f);
PARAM_DEFINE_FLOAT(TRIM_PITCH, 0.0f);
PARAM_DEFINE_FLOAT(TRIM_YAW, 0.0f);
PARAM_DEFINE_FLOAT(BAT_V_EMPTY, 3.2f);
PARAM_DEFINE_FLOAT(BAT_V_FULL, 4.05f);
PARAM_DEFINE_FLOAT(BAT_N_CELLS, 3);
PARAM_DEFINE_FLOAT(BAT_V_EMPTY, 3.4f);
PARAM_DEFINE_FLOAT(BAT_V_FULL, 3.9f);
PARAM_DEFINE_INT32(BAT_N_CELLS, 3);
PARAM_DEFINE_FLOAT(BAT_CAPACITY, -1.0f);