########################################################################### # # Copyright (c) 2020-2024 Diality Inc. - All Rights Reserved. # # THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN # WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER. # # @file pressures.py # # @author (last) Micahel Garthwaite # @date (last) 07-Mar-2023 # @author (original) Sean # @date (original) 14-Apr-2020 # ############################################################################ import struct from enum import unique from logging import Logger from .constants import NO_RESET, RESET from leahi_dialin.common.msg_defs import MsgIds, MsgFieldPositions from leahi_dialin.protocols.CAN import DenaliMessage, DenaliChannels from leahi_dialin.utils.base import AbstractSubSystem, publish, DialinEnum from leahi_dialin.utils.checks import check_broadcast_interval_override_ms from leahi_dialin.utils.conversions import integer_to_bytearray, float_to_bytearray @unique class PressureNames(DialinEnum): # Pressure Sensor IDs PRESSURE_SENSOR_WATER_INLET_INPUT = 0 PRESSURE_SENSOR_WATER_INLET_OUTPUT = 1 PRESSURE_SENSOR_HYDRAULICS_OUTLET = 2 PRESSURE_SENSOR_DRAIN_PUMP_OUTLET = 3 PRESSURE_SENSOR_BIBAG = 4 PRESSURE_SENSOR_SPENT_DIALYSATE = 5 PRESSURE_SENSOR_FRESH_DIALYSATE = 6 PRESSURE_SENSOR_TRANSMEMBRANE = 7 PRESSURE_SENSOR_BAROMETRIC = 8 NUM_OF_PRESSURE_SENSORS = 9 class DDPressureSensors(AbstractSubSystem): """ DD interface containing pressure related commands. """ def __init__(self, can_interface, logger: Logger): """ @param can_interface: The DenaliCANMessenger object """ super().__init__() self.can_interface = can_interface self.logger = logger if self.can_interface is not None: channel_id = DenaliChannels.dd_sync_broadcast_ch_id msg_id = MsgIds.MSG_ID_DD_PRESSURES_DATA.value self.can_interface.register_receiving_publication_function(channel_id, msg_id, self._handler_pressures_sync) self.filtered_water_inlet_input_pressure = 0.0 self.filtered_water_inlet_output_pressure = 0.0 self.filtered_hydraulics_output_pressure = 0.0 self.filtered_bibag_presssure = 0.0 self.filtered_spent_dialysate_pressure = 0.0 self.filtered_fresh_dialysate_pressure = 0.0 self.filtered_transmembrane_pressure = 0.0 self.filtered_water_inlet_input_temp = 0.0 self.filtered_water_inlet_output_temp = 0.0 self.filtered_hydraulics_output_temp = 0.0 self.filtered_bibag_temp = 0.0 self.filtered_spent_dialysate_temp = 0.0 self.filtered_fresh_dialysate_temp = 0.0 self.transmembrane_temp = 0.0 self.dd_pressures_timestamp = 0 @publish([ "dd_pressures_timestamp", "water_inlet_input_pressure", "water_inlet_output_pressure", "hydraulics_output_pressure", "bibag_presssure", "spent_dialysate_pressure", "fresh_dialysate_pressure", "transmembrane_pressure", "water_inlet_input_temp", "water_inlet_output_temp", "hydraulics_output_temp", "bibag_temp", "spent_dialysate_temp", "fresh_dialysate_temp", "transmembrane_temp", ]) def _handler_pressures_sync(self, message,timestamp=0.0): """ Handles published pressure data messages. Pressure data are captured for reference. @param message: published pressure data message @return: none """ self.filtered_water_inlet_input_pressure = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_1:MsgFieldPositions.END_POS_FIELD_1]))[0] self.filtered_water_inlet_output_pressure = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_2:MsgFieldPositions.END_POS_FIELD_2]))[0] self.filtered_hydraulics_output_pressure = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_3:MsgFieldPositions.END_POS_FIELD_3]))[0] self.filtered_bibag_presssure = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_4:MsgFieldPositions.END_POS_FIELD_4]))[0] self.filtered_spent_dialysate_pressure = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_5:MsgFieldPositions.END_POS_FIELD_5]))[0] self.filtered_fresh_dialysate_pressure = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_6:MsgFieldPositions.END_POS_FIELD_6]))[0] self.filtered_transmembrane_pressure = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_7:MsgFieldPositions.END_POS_FIELD_7]))[0] self.filtered_water_inlet_input_temp = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_8:MsgFieldPositions.END_POS_FIELD_8]))[0] self.filtered_water_inlet_output_temp = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_9:MsgFieldPositions.END_POS_FIELD_9]))[0] self.filtered_hydraulics_output_temp = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_10:MsgFieldPositions.END_POS_FIELD_10]))[0] self.filtered_bibag_temp = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_11:MsgFieldPositions.END_POS_FIELD_11]))[0] self.filtered_spent_dialysate_temp = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_12:MsgFieldPositions.END_POS_FIELD_12]))[0] self.filtered_fresh_dialysate_temp = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_13:MsgFieldPositions.END_POS_FIELD_13]))[0] self.filtered_transmembrane_temp = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_14:MsgFieldPositions.END_POS_FIELD_14]))[0] self.dd_pressures_timestamp = timestamp def cmd_pressure_broadcast_interval_override(self, ms: int, reset: int = NO_RESET) -> int: """ Constructs and sends the pressure override command. Constraints: Must be logged into DG. Given interval must be non-zero and a multiple of the DG general task interval (50 ms). @param ms: unsigned int - broadcast interval (in ms) @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ if not check_broadcast_interval_override_ms(ms): return False rst = integer_to_bytearray(reset) ivl = integer_to_bytearray(ms) payload = rst + ivl message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_dd_ch_id, message_id=MsgIds.MSG_ID_DD_PRESSURE_SENSOR_PUBLISH_INTERVAL_OVERRIDE_REQUEST.value, payload=payload) self.logger.debug("override pressure data broadcast interval") # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: self.logger.debug("Timeout!!!!") return False def cmd_pressure_readings_override(self, sensor: int, pressure: float, reset: int = NO_RESET) -> int: """ Constructs and sends the pressure override command. Constraints: Must be logged into DG. Given sensor must be one of the sensors listed below. @param sensor: unsigned int - sensor ID @param pressure: unsigned int - pressure (in PSI) @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ rst = integer_to_bytearray(reset) prs = float_to_bytearray(pressure) idx = integer_to_bytearray(sensor) payload = rst + prs + idx message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_dd_ch_id, message_id=MsgIds.MSG_ID_DD_PRESSURE_SENSOR_READINGS_OVERRIDE_REQUEST.value, payload=payload) self.logger.debug("override pressure reading") # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: self.logger.debug("Timeout!!!!") return False def cmd_pressure_temperature_override(self, sensor: int, temperature: float, reset: int = NO_RESET) -> int: """ Constructs and sends the pressure override command. Constraints: Must be logged into DG. Given sensor must be one of the sensors listed below. @param sensor: unsigned int - sensor ID @param temperature: unsigned int - pressure (in PSI) @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ rst = integer_to_bytearray(reset) tmp = float_to_bytearray(temperature) idx = integer_to_bytearray(sensor) payload = rst + tmp + idx message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_dd_ch_id, message_id=MsgIds.MSG_ID_DD_PRESSURE_SENSOR_TEMPERATURE_OVERRIDE_REQUEST.value, payload=payload) self.logger.debug("override pressure temperature") # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: self.logger.debug("Timeout!!!!") return False def cmd_pressure_sensor_read_counter_override(self, sensor: int, counter: int, reset: int = NO_RESET) -> int: """ Constructs and sends the conductivity value override command @param sensor: unsigned int - sensor ID @param counter: integer - conductivity value to override sensor with @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ reset_byte_array = integer_to_bytearray(reset) read_byte_array = integer_to_bytearray(counter) sensor_byte_array = integer_to_bytearray(sensor) payload = reset_byte_array + read_byte_array + sensor_byte_array message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_dd_ch_id, message_id=MsgIds.MSG_ID_DD_PRESSURE_SENSOR_READ_COUNTER_OVERRIDE_REQUEST.value, payload=payload) if reset == RESET: str_res = "reset back to normal" else: str_res = str(sensor) + " psi" self.logger.debug("override pressure sensor value for sensor " + str(sensor) + ": " + str_res) # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: self.logger.error("Timeout!!!!") return False def cmd_pressure_sensor_error_counter_override(self, sensor: int, counter: int, reset: int = NO_RESET) -> int: """ Constructs and sends the conductivity value override command @param sensor: unsigned int - sensor ID @param counter: integer - conductivity value to override sensor with @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ reset_byte_array = integer_to_bytearray(reset) error_byte_array = integer_to_bytearray(counter) sensor_byte_array = integer_to_bytearray(sensor) payload = reset_byte_array + error_byte_array + sensor_byte_array message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_dd_ch_id, message_id=MsgIds.MSG_ID_DD_PRESSURE_SENSOR_ERROR_COUNTER_OVERRIDE_REQUEST.value, payload=payload) if reset == RESET: str_res = "reset back to normal" else: str_res = str(sensor) + " psi" self.logger.debug("override pressure sensor value for sensor " + str(sensor) + ": " + str_res) # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: self.logger.error("Timeout!!!!") return False def cmd_pressure_filtered_readings_override(self, sensor: int, pressure: float, reset: int = NO_RESET) -> int: """ Constructs and sends the pressure override command. Constraints: Must be logged into DG. Given sensor must be one of the sensors listed below. @param sensor: unsigned int - sensor ID @param pressure: unsigned int - pressure (in PSI) @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ rst = integer_to_bytearray(reset) prs = float_to_bytearray(pressure) idx = integer_to_bytearray(sensor) payload = rst + prs + idx message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_dd_ch_id, message_id=MsgIds.MSG_ID_DD_PRESSURE_SENSOR_FILTER_READINGS_OVERRIDE_REQUEST.value, payload=payload) self.logger.debug("override pressure reading") # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: self.logger.debug("Timeout!!!!") return False def cmd_pressure_filtered_temperature_override(self, sensor: int, temperature: float, reset: int = NO_RESET) -> int: """ Constructs and sends the pressure override command. Constraints: Must be logged into DG. Given sensor must be one of the sensors listed below. @param sensor: unsigned int - sensor ID @param temperature: unsigned int - pressure (in PSI) @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ rst = integer_to_bytearray(reset) tmp = float_to_bytearray(temperature) idx = integer_to_bytearray(sensor) payload = rst + tmp + idx message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_dd_ch_id, message_id=MsgIds.MSG_ID_DD_PRESSURE_SENSOR_FILTER_TEMPERATURE_OVERRIDE_REQUEST.value, payload=payload) self.logger.debug("override pressure temperature") # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: self.logger.debug("Timeout!!!!") return False