########################################################################### # # 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 pressure_occlusion.py # # @author (last) Zoltan Miskolci # @date (last) 08-Jan-2026 # @author (original) Peter Lucia # @date (original) 02-Apr-2020 # ############################################################################ import struct from logging import Logger from leahi_dialin.common.constants import NO_RESET 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.common.td_defs import td_enum_repository 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 TDPressureSensors(AbstractSubSystem): """ Treatment Delivery (TD) Dialin API sub-class for pressure related commands. """ def __init__(self, can_interface, logger: Logger): """ TDPressureSensors constructor """ super().__init__() self.can_interface = can_interface self.logger = logger if self.can_interface is not None: channel_id = DenaliChannels.td_sync_broadcast_ch_id self.msg_id_td_pressure_data = MsgIds.MSG_ID_TD_PRESSURE_DATA.value self.can_interface.register_receiving_publication_function(channel_id, self.msg_id_td_pressure_data, self._handler_pressure_sync) self.td_pressure_timestamp = 0.0 self.td_pressure_sensors = { td_enum_repository.TDPressureSensorNames.H2_PRES.name: { td_enum_repository.TDPressureSensorAttributes.PRES.name: 0.0, td_enum_repository.TDPressureSensorAttributes.LONG_FILTERED_PRESSURE.name: 0.0, td_enum_repository.TDPressureSensorAttributes.PRES_LIMIT_MIN.name: 0, td_enum_repository.TDPressureSensorAttributes.PRES_LIMIT_MAX.name: 0 }, td_enum_repository.TDPressureSensorNames.H14_PRES.name: { td_enum_repository.TDPressureSensorAttributes.PRES.name: 0.0, td_enum_repository.TDPressureSensorAttributes.LONG_FILTERED_PRESSURE.name: 0.0, td_enum_repository.TDPressureSensorAttributes.PRES_LIMIT_MIN.name: 0, td_enum_repository.TDPressureSensorAttributes.PRES_LIMIT_MAX.name: 0 }, td_enum_repository.TDPressureSensorNames.H23_PRES.name: { td_enum_repository.TDPressureSensorAttributes.PRES.name : 0.0 } } self.pressure_limits_state = 0 self.tmp_pressure = 0.0 self.tmp_long_filtered_pressure = 0.0 self.tmp_min_limit = 0.0 self.tmp_max_limit = 0.0 @publish([ "msg_id_td_pressure_data", "td_pressure_sensors", "pressure_limits_state", "tmp_pressure", "tmp_long_filtered_pressure", "tmp_min_limit", "tmp_max_limit", "td_pressure_timestamp" ]) def _handler_pressure_sync(self, message, timestamp=0.0): """ Handles published pressure & occlusion data messages. Pressure data are captured for reference. @param message: published pressure & occlusion data message @return: none """ sensor_list =[] sensor_list.append(['self.td_pressure_sensors[td_enum_repository.TDPressureSensorNames.H2_PRES.name][td_enum_repository.TDPressureSensorAttributes.PRES.name]', 'f']) sensor_list.append(['self.td_pressure_sensors[td_enum_repository.TDPressureSensorNames.H14_PRES.name][td_enum_repository.TDPressureSensorAttributes.PRES.name]', 'f']) sensor_list.append(['self.pressure_limits_state', 'f']) sensor_list.append(['self.td_pressure_sensors[td_enum_repository.TDPressureSensorNames.H2_PRES.name][td_enum_repository.TDPressureSensorAttributes.PRES_LIMIT_MIN.name]', 'f']) sensor_list.append(['self.td_pressure_sensors[td_enum_repository.TDPressureSensorNames.H2_PRES.name][td_enum_repository.TDPressureSensorAttributes.PRES_LIMIT_MAX.name]', 'f']) sensor_list.append(['self.td_pressure_sensors[td_enum_repository.TDPressureSensorNames.H14_PRES.name][td_enum_repository.TDPressureSensorAttributes.PRES_LIMIT_MIN.name]', 'f']) sensor_list.append(['self.td_pressure_sensors[td_enum_repository.TDPressureSensorNames.H14_PRES.name][td_enum_repository.TDPressureSensorAttributes.PRES_LIMIT_MAX.name]', 'f']) sensor_list.append(['self.td_pressure_sensors[td_enum_repository.TDPressureSensorNames.H2_PRES.name][td_enum_repository.TDPressureSensorAttributes.LONG_FILTERED_PRESSURE.name]', 'f']) sensor_list.append(['self.td_pressure_sensors[td_enum_repository.TDPressureSensorNames.H14_PRES.name][td_enum_repository.TDPressureSensorAttributes.LONG_FILTERED_PRESSURE.name]', 'f']) sensor_list.append(['self.tmp_pressure', 'f']) sensor_list.append(['self.tmp_long_filtered_pressure', 'f']) sensor_list.append(['self.tmp_min_limit', 'f']) sensor_list.append(['self.tmp_max_limit', 'f']) sensor_list.append(['self.td_pressure_sensors[td_enum_repository.TDPressureSensorNames.H23_PRES.name][td_enum_repository.TDPressureSensorAttributes.PRES.name]', 'f']) i = 1 for sensor in sensor_list: start_pos = eval(f'MsgFieldPositions.START_POS_FIELD_{i}') end_pos = eval(f'MsgFieldPositions.END_POS_FIELD_{i}') value = struct.unpack(sensor[1],bytearray(message['message'][start_pos:end_pos]))[0] if 'nan' in str(value).lower(): value = None exec(f'{sensor[0]} = {value}') i += 1 self.td_pressure_timestamp = timestamp def cmd_pressure_sensors_broadcast_interval_override(self, ms: int, reset: int = NO_RESET) -> int: """ Constructs and sends the measured pressure sensors broadcast interval override command Constraints: Must be logged into TD. Given interval must be non-zero and a multiple of the TD 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_td_ch_id, msg_id = MsgIds.MSG_ID_TD_PRESSURE_PUBLISH_INTERVAL_OVERRIDE_REQUEST, module_name = 'TD Pressure Sensors', logger = self.logger, can_interface = self.can_interface) def cmd_pressure_sensor_override(self, sensor: int, pressure: float, reset: int = NO_RESET) -> int: """ Constructs and sends the measured pressure sensor override command . Constraints: Must be logged into TD. @param sensor: int - sensor ID @param pressure: float - measured arterial or venous pressure (in mmHg) to override with @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ rst = integer_to_bytearray(reset) sen = integer_to_bytearray(sensor) prs = float_to_bytearray(pressure) payload = rst + prs + sen sensor_name = td_enum_repository.TDPressureSensorNames(sensor).name.split('_')[0] return cmd_generic_override( payload = payload, reset = reset, channel_id = DenaliChannels.dialin_to_td_ch_id, msg_id = MsgIds.MSG_ID_TD_PRESSURE_OVERRIDE_REQUEST, entity_name = f'TD {sensor_name} Pressure Sensor pressure', override_text = str(prs) + " mmHg. ", logger = self.logger, can_interface = self.can_interface) def cmd_tmp_sensor_override(self, pressure: float, reset: int = NO_RESET) -> int: """ Constructs and sends the tmp sensor override command . Constraints: Must be logged into TD. @param pressure: float - measured pressure (in mmHg) to override with @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) payload = rst + prs return cmd_generic_override( payload = payload, reset = reset, channel_id = DenaliChannels.dialin_to_td_ch_id, msg_id = MsgIds.MSG_ID_TD_TMP_PRESSURE_OVERRIDE_REQUEST, entity_name = 'TD TMP Pressure Sensor pressure', override_text = str(prs) + " mmHg. ", logger = self.logger, can_interface = self.can_interface)