def get_battery_state(self, battery): """Get the current state of a battery.""" battery_config = BATTERIES[battery] battery_state = BatteryState() battery_voltage = PiPuckBatteryServer.get_battery_voltage(battery_config["path"]) self._battery_history[battery].insert(0, battery_voltage) self._battery_history[battery] = self._battery_history[battery][:HISTORY_MAX] split_point = len(self._battery_history[battery]) // 2 head_half = self._battery_history[battery][:split_point] tail_half = self._battery_history[battery][split_point:] try: battery_delta = (sum(head_half) / len(head_half)) - (sum(tail_half) / len(tail_half)) except ZeroDivisionError: battery_delta = 0.0 battery_state.voltage = battery_voltage battery_state.present = True battery_state.design_capacity = battery_config["design_capacity"] battery_state.power_supply_technology = battery_config["power_supply_technology"] average_battery_voltage = sum(self._battery_history[battery]) / len( self._battery_history[battery]) if average_battery_voltage >= battery_config["max_voltage"] * CHARGED_VOLTAGE_MARGIN: battery_state.power_supply_status = BatteryState.POWER_SUPPLY_STATUS_FULL elif battery_delta < 0: battery_state.power_supply_status = BatteryState.POWER_SUPPLY_STATUS_DISCHARGING elif battery_delta > 0: battery_state.power_supply_status = BatteryState.POWER_SUPPLY_STATUS_CHARGING else: battery_state.power_supply_status = BatteryState.POWER_SUPPLY_STATUS_NOT_CHARGING if average_battery_voltage >= battery_config["max_voltage"] * OVER_VOLTAGE_MARGIN: battery_state.power_supply_health = BatteryState.POWER_SUPPLY_HEALTH_OVERVOLTAGE elif average_battery_voltage <= battery_config["min_voltage"]: # It is unclear whether this means "out of charge" or "will never charge again", we # assume here that it means "out of charge". battery_state.power_supply_health = BatteryState.POWER_SUPPLY_HEALTH_DEAD else: battery_state.power_supply_health = BatteryState.POWER_SUPPLY_HEALTH_GOOD battery_state.percentage = clamp( (average_battery_voltage - battery_config["min_voltage"]) / (battery_config["max_voltage"] - battery_config["min_voltage"]), 1.0, 0.0) battery_state.current = NAN battery_state.charge = NAN battery_state.capacity = NAN battery_state.location = battery_config["location"] return battery_state
def main(): rospy.init_node("adc_reader") battery_type=rospy.get_param("~type","Pb") battery_volt=rospy.get_param("~V",12.0) battery_design_capacity=rospy.get_param('~C',7) # capacity of battery in Ah reading_pub = rospy.Publisher("energy/adc_raw",Readings,queue_size=10) battery_pub = rospy.Publisher("energy/battery",BatteryState,queue_size=10) hz = rospy.Rate(10) rospy.loginfo('Reading ADS1x15 values, press Ctrl-C to quit...') # Print nice channel column headers. filters = [] cutoffs = rospy.get_param('~cutoffs',[4,4,4,4]) for i in range(4): filters.append(lowpass.LowPass(10,cutoffs[i],10,order=3)) rospy.logdebug('| {0:>6} | {1:>6} | {2:>6} | {3:>6} |'.format(*range(4))) rospy.logdebug('-' * 37) battery_msg = BatteryState() reading_msg = Readings() try: while not rospy.is_shutdown(): # Read all the ADC channel values in a list. raw = np.zeros(4) for i in range(4): # Read the specified ADC channel using the previously set gain value. #raw[i] = filters[i].update(adc.read_adc(i, gain=GAIN)) raw[i] = adc.read_adc(i, gain=GAIN) # Note you can also pass in an optional data_rate parameter that controls # the ADC conversion time (in samples/second). Each chip has a different # set of allowed data rate values, see datasheet Table 9 config register # DR bit values. #values[i] = adc.read_adc(i, gain=GAIN, data_rate=128) # Each value will be a 12 or 16 bit signed integer value depending on the # ADC (ADS1015 = 12-bit, ADS1115 = 16-bit). values = FACTORS*(raw)+ZEROS for i in range(4): values[i] = filters[i].update(values[i]) # Print the ADC values. rospy.logdebug('| {0:>6} | {1:>6} | {2:>6} | {3:>6} |'.format(*values)) battery_msg.header.stamp = rospy.Time.now() battery_msg.header.frame_id = 'adc' battery_msg.voltage = values[3] battery_msg.current = values[0] battery_msg.design_capacity = battery_design_capacity battery_msg.present = True battery_pub.publish(battery_msg) reading_msg.header = battery_msg.header reading_msg.data = raw reading_pub.publish(reading_msg) hz.sleep() except rospy.ROSInterruptException: print("Exiting")
def update_state(self): voltage_dec_, current_dec_, charge_dec_, percentage_dec_, temperature_dec_, power_supply_status_dec_, cell_voltage_dec_ = self.read_bms( ) battery_msg = BatteryState() # Power supply status constants # uint8 POWER_SUPPLY_STATUS_UNKNOWN = 0 # uint8 POWER_SUPPLY_STATUS_CHARGING = 1 # uint8 POWER_SUPPLY_STATUS_DISCHARGING = 2 # uint8 POWER_SUPPLY_STATUS_NOT_CHARGING = 3 # uint8 POWER_SUPPLY_STATUS_FULL = 4 # Power supply health constants # uint8 POWER_SUPPLY_HEALTH_UNKNOWN = 0 # uint8 POWER_SUPPLY_HEALTH_GOOD = 1 # uint8 POWER_SUPPLY_HEALTH_OVERHEAT = 2 # uint8 POWER_SUPPLY_HEALTH_DEAD = 3 # uint8 POWER_SUPPLY_HEALTH_OVERVOLTAGE = 4 # uint8 POWER_SUPPLY_HEALTH_UNSPEC_FAILURE = 5 # uint8 POWER_SUPPLY_HEALTH_COLD = 6 # uint8 POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE = 7 # uint8 POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE = 8 # Power supply technology (chemistry) constants # uint8 POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0 # uint8 POWER_SUPPLY_TECHNOLOGY_NIMH = 1 # uint8 POWER_SUPPLY_TECHNOLOGY_LION = 2 # uint8 POWER_SUPPLY_TECHNOLOGY_LIPO = 3 # uint8 POWER_SUPPLY_TECHNOLOGY_LIFE = 4 # uint8 POWER_SUPPLY_TECHNOLOGY_NICD = 5 # uint8 POWER_SUPPLY_TECHNOLOGY_LIMN = 6 # Populate battery parameters. battery_msg.voltage = voltage_dec_ # Voltage in Volts (Mandatory) battery_msg.current = current_dec_ # Negative when discharging (A) (If unmeasured NaN) battery_msg.charge = charge_dec_ # Current charge in Ah (If unmeasured NaN) battery_msg.capacity = 150 # Capacity in Ah (last full capacity) (If unmeasured NaN) battery_msg.design_capacity = 150 # Capacity in Ah (design capacity) (If unmeasured NaN) battery_msg.percentage = percentage_dec_ # Charge percentage on 0 to 1 range (If unmeasured NaN) battery_msg.power_supply_status = int( power_supply_status_dec_ ) # The charging status as reported. Values defined above battery_msg.power_supply_health = 0 # The battery health metric. Values defined above battery_msg.power_supply_technology = battery_msg.POWER_SUPPLY_TECHNOLOGY_LIFE # The battery chemistry. Values defined above battery_msg.present = True # True if the battery is present battery_msg.cell_voltage = cell_voltage_dec_ self.pub_batt_state.publish(battery_msg)
def battery_republisher(): global MotorDriverPort #print "Battery republisher launched" bat_status = BatteryState() BAT_FULL = 6*4.2 BAT_MIN = 6*3.3 bat_status.header.frame_id = 'robot' bat_status.current = float('nan') bat_status.charge = float('nan') bat_status.capacity = float('nan') bat_status.design_capacity = float('nan') bat_status.power_supply_technology = BatteryState().POWER_SUPPLY_TECHNOLOGY_LIPO for cell in range(0, 6): bat_status.cell_voltage.append(float('nan')) bat_status.location = 'Main Battery' bat_status.serial_number = "NA" while 1: MotorDriverPort.write('GetBatTotal\n') sleep(0.05) recv_data = MotorDriverPort.readline() print recv_data # print recv_data bat_status.header.stamp = rospy.Time.now() try: bat_status.voltage = float(recv_data) bat_status.percentage = bat_status.voltage/BAT_FULL bat_status.present = bat_status.voltage<BAT_FULL and bat_status.voltage>BAT_MIN battery_pub.publish(bat_status) except: if DEBUG: print "Receive Error" else: pass sleep(0.01)
def publish_battery_state_msg(publisher): # The Romi is powered by six 1.5V 2400 mAh AA NiMH batteries. Their combined # operating voltage is about 7.2V. # Define the message class for battery_state_msg: battery_state_msg = BatteryState() # Time tag: battery_state_msg.header.stamp = rospy.get_rostime() # Capacity in amp-hours: battery_state_msg.design_capacity = 2.4 # Read the battery voltage over the I2C interface: battery_state_msg.voltage = romi.read_battery_millivolts() / 1000.0 if( romi.read_battery_millivolts() >= 0.00 ): battery_state_msg.present = True else: battery_state_msg.present = False # Publish the message publisher.publish(battery_state_msg)
def on_new_telemetry(self, message): for servo in message.servos: self.voltages[servo.id] = servo.voltage if len(self.voltages) == SERVO_COUNT: voltages = self.voltages.values() self.voltages.clear() voltage = max(voltages) battery_state = BatteryState() battery_state.header.stamp = rospy.Time.now() battery_state.voltage = voltage battery_state.current = float("nan") battery_state.charge = float("nan") battery_state.capacity = float("nan") battery_state.design_capacity = float("nan") battery_state.percentage = 100 - (MAX_VOLTAGE - voltage) / ( MAX_VOLTAGE - MIN_VOLTAGE) * 100 battery_state.power_supply_status = BatteryState.POWER_SUPPLY_STATUS_DISCHARGING battery_state.power_supply_health = BatteryState.POWER_SUPPLY_HEALTH_UNKNOWN battery_state.power_supply_technology = BatteryState.POWER_SUPPLY_TECHNOLOGY_LIPO battery_state.present = True battery_state.cell_voltage = [float("nan")] * 3 battery_state.location = "Primary batter bay" battery_state.serial_number = "N/A" self.battery_publisher.publish(battery_state) # skip the first check so that you don't get a warning if battery is already bellow some value if self.first_check: self.first_check = False self.lowest_recorded_voltage = voltage return if voltage < 10.2: if self.last_critical_voltage_warning + self.critical_voltage_warning_period < rospy.Time.now( ): self.speech_publisher.publish("battery_critical") self.face_color_publisher.publish("flash:red") self.last_critical_voltage_warning = rospy.Time.now() elif voltage < 11 and self.lowest_recorded_voltage >= 11: self.speech_publisher.publish("battery_below_11") elif voltage < 12 and self.lowest_recorded_voltage >= 12: self.speech_publisher.publish("battery_below_12") if voltage < self.lowest_recorded_voltage: self.lowest_recorded_voltage = voltage
def publish_state(self): state = BatteryState() state.header.frame_id = "usv" state.header.stamp = rospy.Time.now() state.voltage = self.voltage state.current = self.power_battery state.charge = self.charging_current #state.capacity = self.design_capacity * (self.percentage / 100.0) state.design_capacity = self.design_capacity state.percentage = (self.percentage/100.0) state.power_supply_status = self.state_charging state.power_supply_health = BatteryState.POWER_SUPPLY_HEALTH_UNKNOWN state.power_supply_technology = BatteryState.POWER_SUPPLY_TECHNOLOGY_LIPO state.present = True state.cell_voltage = [self.voltage] state.location = "Slot 1" state.serial_number = "SUSV LIPO 3000mAH" self.pub.publish(state)
def batRead(): bat_dir = "/sys/devices/platform/7000c400.i2c/i2c-1/1-0042/iio_device/" volt0_in = open(bat_dir + "in_voltage0_input") curr0_in = open(bat_dir + "in_current0_input") rospy.init_node('BatRead') pub = rospy.Publisher('jetson_battery', BatteryState, queue_size=20) rate = rospy.Rate(5) # 5hz while not rospy.is_shutdown(): try: # Read voltage in mV, store in V voltage = float(volt0_in.read().strip()) / 1000 volt0_in.seek(0) # Read voltage in mA, store in A current = float(curr0_in.read().strip()) / 1000 curr0_in.seek(0) except (IOError, ValueError) as e: rospy.logerr("I/O error: {0}".format(e)) else: bat_msg = BatteryState() bat_msg.header.stamp = rospy.Time.now() bat_msg.voltage = voltage bat_msg.current = -current bat_msg.charge = float('NaN') bat_msg.capacity = float('NaN') bat_msg.design_capacity = float('NaN') bat_msg.percentage = float('NaN') bat_msg.power_supply_status = bat_msg.POWER_SUPPLY_STATUS_UNKNOWN bat_msg.power_supply_health = bat_msg.POWER_SUPPLY_HEALTH_UNKNOWN bat_msg.power_supply_technology = bat_msg.POWER_SUPPLY_TECHNOLOGY_UNKNOWN bat_msg.present = True rospy.logdebug('New battery message: %s' % bat_msg) pub.publish(bat_msg) rate.sleep()
def test__on_receive_battery_state_over_threshold(self, mocked_rospy, mocked_mqtt): mocked_rospy.get_param.return_value = utils.get_attrs_params() mocked_mqtt_client = mocked_mqtt.Client.return_value with freezegun.freeze_time('2018-01-02T03:04:05.123456+09:00'): bridge = AttrsBridge().connect() battery = BatteryState() battery.voltage = 0.1 battery.current = 0.2 battery.charge = 0.3 battery.capacity = 0.4 battery.design_capacity = 0.5 battery.percentage = 0.6 with freezegun.freeze_time('2018-01-02T03:04:06.123457+09:00'): bridge._on_receive_battery_state(battery) payload = '2018-01-02T03:04:06.123457+0900|voltage|0.1|current|0.2|charge|0.3|capacity|0.4|' \ 'design_capacity|0.5|percentage|0.6' mocked_mqtt_client.publish.assert_called_once_with( '/robot/turtlebot3/attrs', payload)
def _hw_robot_state_cb(self, msg): self._get_wallbanger_state_pub.publish(msg.in_autonomous_mode) batteryMsg = BatteryState() if msg.robot_power_state == RobotState.ESTOP_ACTIVE: batteryMsg.voltage = float('nan') batteryMsg.percentage = float('nan') else: batteryMsg.voltage = msg.voltage # volts batteryMsg.percentage = max(0, min(msg.voltage / 12.0, 1)) # volts / volts-nominal batteryMsg.current = float('nan') batteryMsg.charge = float('nan') batteryMsg.capacity = float('nan') batteryMsg.design_capacity = 14.0 #AH (2x batteries) batteryMsg.power_supply_status = BatteryState.POWER_SUPPLY_STATUS_UNKNOWN batteryMsg.power_supply_health = BatteryState.POWER_SUPPLY_HEALTH_UNKNOWN batteryMsg.power_supply_technology = BatteryState.POWER_SUPPLY_TECHNOLOGY_UNKNOWN batteryMsg.present = True self._battery_pub.publish(batteryMsg) self._watchdog_tripped_pub.publish(msg.watchdog_tripped) strMsg = String() if msg.robot_power_state == RobotState.POWER_GOOD: strMsg.data = "power-good" elif msg.robot_power_state == RobotState.POWER_LOW: strMsg.data = "power-low" elif msg.robot_power_state == RobotState.POWER_EMERGENCY: strMsg.data = "power-emergency" elif msg.robot_power_state == RobotState.ESTOP_ACTIVE: strMsg.data = "estop-active" self._robot_state_pub.publish(strMsg)
def _status_to_battery_(status): """ Converts a ds4_driver/Status to sensor_msgs/BatteryState Reference: https://www.psdevwiki.com/ps4/DualShock_4#Specifications :param status: :type status: Status :return: """ msg = BatteryState() msg.header = status.header msg.percentage = status.battery_percentage msg.voltage = Controller.MAX_VOLTAGE * msg.percentage msg.current = float('NaN') msg.charge = float('NaN') msg.capacity = float('NaN') msg.design_capacity = 1.0 if not status.plug_usb: msg.power_supply_status = BatteryState.POWER_SUPPLY_STATUS_NOT_CHARGING elif not status.battery_full_charging: msg.power_supply_status = BatteryState.POWER_SUPPLY_STATUS_CHARGING elif status.battery_full_charging: msg.power_supply_status = BatteryState.POWER_SUPPLY_STATUS_FULL msg.power_supply_technology = BatteryState.POWER_SUPPLY_TECHNOLOGY_LION return msg
def bs_err_inj(tb3_name): #Create error-injected topic rospy.init_node('batterystate_err_inj') ######################################### #Create new message batterystate_msg = BatteryState() #Fill message with values batterystate_msg.header.seq = 0 batterystate_msg.header.stamp.secs = 0 batterystate_msg.header.stamp.nsecs = 0 batterystate_msg.header.frame_id = "" batterystate_msg.voltage = 0.0 batterystate_msg.current = 0.0 batterystate_msg.charge = 0.0 batterystate_msg.capacity = 0.0 batterystate_msg.design_capacity = 0.0 batterystate_msg.percentage = 0.0 batterystate_msg.power_supply_status = 0 batterystate_msg.power_supply_health = 0 batterystate_msg.power_supply_technology = 0 batterystate_msg.bool = 1 batterystate_msg.cell_voltage = [] batterystate_msg.location = "" batterystate_msg.serial_number = "" ######################################### rate = rospy.Rate(50) #Publish message into new topic while not rospy.is_shutdown(): my_pub = rospy.Publisher(tb3_name + 'batterystate_err_inj', BatteryState, queue_size=10) my_sub = rospy.Subscriber(tb3_name + 'battery_state', BatteryState, listener) ######################################### #INJECT ERRORS HERE batterystate_msg.header.seq = actual_seq batterystate_msg.header.stamp.secs = actual_secs batterystate_msg.header.stamp.nsecs = actual_nsecs batterystate_msg.header.frame_id = actual_frameid batterystate_msg.voltage = actual_voltage batterystate_msg.current = actual_current batterystate_msg.charge = actual_charge batterystate_msg.capacity = actual_capacity batterystate_msg.design_capacity = actual_designcapacity batterystate_msg.percentage = actual_percentage batterystate_msg.power_supply_status = actual_powersupplystatus batterystate_msg.power_supply_health = actual_powersupplyhealth batterystate_msg.power_supply_technology = actual_powersupplytechnology batterystate_msg.present = actual_present batterystate_msg.cell_voltage = actual_cellvoltage batterystate_msg.location = actual_location batterystate_msg.serial_number = actual_serialnumber ######################################### my_pub.publish(batterystate_msg) rate.sleep() rospy.spin()
#!/usr/bin/env python # license removed for brevity #import roslib import rospy import struct #from std_msgs.msg import Int32 from std_msgs.msg import String from std_msgs.msg import Float64 from sensor_msgs.msg import BatteryState import serial ser = serial.Serial('/dev/ttyUSB1', 19200) bat = BatteryState() bat.design_capacity = 105 # Power supply status constants bat.POWER_SUPPLY_STATUS_UNKNOWN bat.POWER_SUPPLY_STATUS_CHARGING bat.POWER_SUPPLY_STATUS_DISCHARGING bat.POWER_SUPPLY_STATUS_NOT_CHARGING bat.POWER_SUPPLY_STATUS_FULL # Power supply health constants bat.POWER_SUPPLY_HEALTH_UNKNOWN bat.POWER_SUPPLY_HEALTH_GOOD bat.POWER_SUPPLY_HEALTH_OVERHEAT bat.POWER_SUPPLY_HEALTH_DEAD bat.POWER_SUPPLY_HEALTH_OVERVOLTAGE bat.POWER_SUPPLY_HEALTH_UNSPEC_FAILURE bat.POWER_SUPPLY_HEALTH_COLD bat.POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE bat.POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE # Power supply technology (chemistry) constants
# This resulted in a ADC 'value' of 1465. # The conversion factor for the battery voltage is then: 1465 / 13.44 = 109.00297619047619 # voltage = (value / 109.00297619047619) else: # simulated value! voltage = demoVoltage # print out pure ADC voltage # rospy.loginfo("Battery: %.1f Volt" % voltage) # completing the ROS message # @SA http://docs.ros.org/jade/api/sensor_msgs/html/msg/BatteryState.html battery_msg.charge = 0.0 battery_msg.capacity = 0.0 battery_msg.design_capacity = 2.2 # 2.2 Ah battery_msg.percentage = 0.0 # 0 to 1! # battery_msg.power_supply_status = POWER_SUPPLY_STATUS_DISCHARGING # battery_msg.power_supply_health = POWER_SUPPLY_HEALTH_GOOD # battery_msg.power_supply_technology = POWER_SUPPLY_TECHNOLOGY_LIPO battery_msg.power_supply_status = 2 battery_msg.power_supply_health = 1 battery_msg.power_supply_technology = 3 battery_msg.present = True battery_msg.cell_voltage = [float(0)] battery_msg.location = "1" # The location into which the battery is inserted. (slot number or plug) battery_msg.serial_number = "1" # this is the battery voltage # @TODO strange, this assignment as to be exactly here... battery_msg.voltage = float(voltage)