########################################################################### # # 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 conductivity_sensors.py # # @author (last) Zoltan Miskolci # @date (last) 07-Jan-2026 # @author (original) Quang Nguyen # @date (original) 20-Jul-2020 # ############################################################################ import struct from logging import Logger from leahi_dialin.common.constants import NO_RESET from leahi_dialin.common.dd_defs import DDConductivitySensorsEnum from leahi_dialin.common.msg_defs import MsgIds, MsgFieldPositions from leahi_dialin.common.override_templates import cmd_generic_broadcast_interval_override, cmd_generic_override from leahi_dialin.protocols.CAN import DenaliChannels from leahi_dialin.utils.base import AbstractSubSystem, publish from leahi_dialin.utils.conversions import integer_to_bytearray, float_to_bytearray class DDConductivitySensors(AbstractSubSystem): """ ConductivitySensors Dialysate Delivery (DD) API sub-class for conductivity sensors related commands. """ def __init__(self, can_interface, logger: Logger): """ @param can_interface: Denali Can Messenger 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 self.msg_id_dd_conductivity_data = MsgIds.MSG_ID_DD_CONDUCTIVITY_DATA.value self.can_interface.register_receiving_publication_function(channel_id, self.msg_id_dd_conductivity_data, self._handler_conductivity_sensors_sync) self.dd_conductivity = { DDConductivitySensorsEnum.D17_COND.name: 0.0, DDConductivitySensorsEnum.D27_COND.name: 0.0, DDConductivitySensorsEnum.D29_COND.name: 0.0, DDConductivitySensorsEnum.D43_COND.name: 0.0, DDConductivitySensorsEnum.D74_COND.name: 0.0 } self.dd_conductivity_timestamp = 0.0 @publish(["msg_id_dd_conductivity_data", "dd_conductivity", "dd_conductivity_timestamp"]) def _handler_conductivity_sensors_sync(self, message, timestamp=0.0): """ Handles published DD conductivity sensor data messages. DD Conductivity sensor data are captured for reference. @param message: published DD conductivity sensor data message @return: None """ self.dd_conductivity[DDConductivitySensorsEnum.D17_COND.name] = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_1:MsgFieldPositions.END_POS_FIELD_1]))[0] self.dd_conductivity[DDConductivitySensorsEnum.D27_COND.name] = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_2:MsgFieldPositions.END_POS_FIELD_2]))[0] self.dd_conductivity[DDConductivitySensorsEnum.D29_COND.name] = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_3:MsgFieldPositions.END_POS_FIELD_3]))[0] self.dd_conductivity[DDConductivitySensorsEnum.D43_COND.name] = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_4:MsgFieldPositions.END_POS_FIELD_4]))[0] self.dd_conductivity[DDConductivitySensorsEnum.D74_COND.name] = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_5:MsgFieldPositions.END_POS_FIELD_5]))[0] self.dd_conductivity_timestamp = timestamp def cmd_conductivity_sensor_data_broadcast_interval_override(self, ms: int, reset: int = NO_RESET) -> int: """ Constructs and sends the conductivity sensor data broadcast interval override command Constraints: Must be logged into DD. Given interval must be non-zero and a multiple of the DD general task interval (50 ms). @param ms: integer - interval (in ms) to override with @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ return cmd_generic_broadcast_interval_override( ms = ms, reset = reset, channel_id = DenaliChannels.dialin_to_dd_ch_id, msg_id = MsgIds.MSG_ID_DD_CONDUCTIVITY_SENSOR_PUBLISH_INTERVAL_OVERRIDE_REQUEST, module_name = 'DD Conductivity Sensors', logger = self.logger, can_interface = self.can_interface) def cmd_conductivity_sensor_readings_override(self, sensor_index: int, conductivity: float, reset: int = NO_RESET) -> int: """ Constructs and sends the conductivity value override command Constraints: Must be logged into DD. Given sensor_index must be one of the sensors defined in ConductivitySensorsEnum @param sensor_index: unsigned int - index of the sensor @param conductivity: float - 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) cond_byte_array = float_to_bytearray(conductivity) sensor_byte_array = integer_to_bytearray(sensor_index) payload = reset_byte_array + cond_byte_array + sensor_byte_array sensor_name = DDConductivitySensorsEnum(sensor_index).name.split('_')[0] return cmd_generic_override( payload = payload, reset = reset, channel_id = DenaliChannels.dialin_to_dd_ch_id, msg_id = MsgIds.MSG_ID_DD_CONDUCTIVITY_SENSOR_READINGS_OVERRIDE_REQUEST, entity_name = f'DD {sensor_name} Conductivity Sensor reading', override_text = f'{str(conductivity)} microsiemens/cm', logger = self.logger, can_interface = self.can_interface) def cmd_conductivity_sensor_read_counter_override(self, sensor_index: int, counter: int, reset: int = NO_RESET) -> int: """ Constructs and sends the conductivity read counter override command Constraints: Must be logged into DD. Given sensor_index must be one of the sensors defined in ConductivitySensorsEnum @param sensor: unsigned int - sensor ID @param counter: int - rad count 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_index) payload = reset_byte_array + read_byte_array + sensor_byte_array sensor_name = DDConductivitySensorsEnum(sensor_index).name.split('_')[0] return cmd_generic_override( payload = payload, reset = reset, channel_id = DenaliChannels.dialin_to_dd_ch_id, msg_id = MsgIds.MSG_ID_DD_CONDUCTIVITY_SENSOR_READINGS_OVERRIDE_REQUEST, entity_name = f'DD {sensor_name} Conductivity Sensor read counter', override_text = str(counter), logger = self.logger, can_interface = self.can_interface) def cmd_conductivity_sensor_error_counter_override(self, sensor_index: int, counter: int, reset: int = NO_RESET) -> int: """ Constructs and sends the conductivity error count override command @param sensor: unsigned int - sensor ID @param counter: int - error count 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_index) payload = reset_byte_array + error_byte_array + sensor_byte_array sensor_name = DDConductivitySensorsEnum(sensor_index).name.split('_')[0] return cmd_generic_override( payload = payload, reset = reset, channel_id = DenaliChannels.dialin_to_dd_ch_id, msg_id = MsgIds.MSG_ID_DD_CONDUCTIVITY_SENSOR_ERROR_COUNTER_OVERRIDE_REQUEST, entity_name = f'DD {sensor_name} Conductivity Sensor error counter', override_text = str(counter), logger = self.logger, can_interface = self.can_interface)