from DialIn.CoreCANProtocol import (DenaliMessage, DenaliChannels) from .utils import integer2ByteArray, float2ByteArray from .HemodialysisDevice import HD import struct class HDDialysateInletFlow: """ \class HD_DialysateInletFlow \brief Hemodialysis Device (HD) Dialin API sub-class for dialysate inlet pump related commands. """ # DialysateFlow message IDs MSG_ID_HD_DIAL_IN_FLOW_PUBLISHED_DATA = 0x0008 MSG_ID_HD_DIAL_IN_FLOW_SET_RATE_OVERRIDE = 0x8010 MSG_ID_HD_DIAL_IN_FLOW_MEAS_RATE_OVERRIDE = 0x8011 MSG_ID_HD_DIAL_IN_PUMP_MC_MEAS_SPEED_OVERRIDE = 0x8012 MSG_ID_HD_DIAL_IN_PUMP_MC_MEAS_CURRENT_OVERRIDE = 0x8013 MSG_ID_HD_DIAL_IN_FLOW_PUBLISH_INTERVAL_OVERRIDE = 0x8014 MSG_ID_HD_DIAL_IN_PUMP_MEAS_SPEED_OVERRIDE = 0x8015 MSG_ID_HD_DIAL_IN_PUMP_ROTOR_MEAS_SPEED_OVERRIDE = 0x8016 # BloodFlow broadcast message field positions START_POS_SET_PT = DenaliMessage.PAYLOAD_START_INDEX END_POS_SET_PT = START_POS_SET_PT + 4 START_POS_MEAS_FLOW = END_POS_SET_PT END_POS_MEAS_FLOW = START_POS_MEAS_FLOW + 4 START_POS_MEAS_ROT_SPEED = END_POS_MEAS_FLOW END_POS_MEAS_ROT_SPEED = START_POS_MEAS_ROT_SPEED + 4 START_POS_MEAS_SPEED = END_POS_MEAS_ROT_SPEED END_POS_MEAS_SPEED = START_POS_MEAS_SPEED + 4 START_POS_MEAS_MC_SPEED = END_POS_MEAS_SPEED END_POS_MEAS_MC_SPEED = START_POS_MEAS_MC_SPEED + 4 START_POS_MEAS_MC_CURR = END_POS_MEAS_MC_SPEED END_POS_MEAS_MC_CURR = START_POS_MEAS_MC_CURR + 4 START_POS_PWM_DC = END_POS_MEAS_MC_CURR END_POS_PWM_DC = START_POS_PWM_DC + 4 def __init__(self, can_interface=None): """ HD_DialysateFlow constructor """ self.can_interface = can_interface if self.can_interface is not None: channel_id = DenaliChannels.hd_sync_broadcast_ch_id msg_id = self.MSG_ID_HD_DIAL_IN_FLOW_PUBLISHED_DATA self.can_interface.register_receiving_publication_function(channel_id, msg_id, self.handlerDialysateInletFlowSyncFunction) self.TargetDialysateInletFlowRate = 0 self.MeasuredDialysateInletFlowRate = 0.0 self.MeasuredDialysateInletPumpRotorSpeed = 0.0 self.MeasuredDialysateInletPumpSpeed = 0.0 self.MeasuredDialysateInletPumpMCSpeed = 0.0 self.MeasuredDialysateInletPumpMCCurrent = 0.0 self.PWMDutyCyclePct = 0.0 def handlerDialysateInletFlowSyncFunction(self, message): """ Handles published dialysate inlet flow data messages. Dialysate flow data are captured for reference. \param message: published dialysate flow data message \returns none """ self.TargetDialysateInletFlowRate = int.from_bytes(bytearray( message['message'][self.START_POS_SET_PT:self.END_POS_SET_PT]), byteorder=DenaliMessage.BYTE_ORDER) flow = struct.unpack('f', bytearray( message['message'][self.START_POS_MEAS_FLOW:self.END_POS_MEAS_FLOW])) rotor = struct.unpack('f', bytearray( message['message'][self.START_POS_MEAS_ROT_SPEED:self.END_POS_MEAS_ROT_SPEED])) speed = struct.unpack('f', bytearray( message['message'][self.START_POS_MEAS_SPEED:self.END_POS_MEAS_SPEED])) mcspeed = struct.unpack('f', bytearray( message['message'][self.START_POS_MEAS_MC_SPEED:self.END_POS_MEAS_MC_SPEED])) mccurr = struct.unpack('f', bytearray( message['message'][self.START_POS_MEAS_MC_CURR:self.END_POS_MEAS_MC_CURR])) pwm = struct.unpack('f', bytearray( message['message'][self.START_POS_PWM_DC:self.END_POS_PWM_DC])) self.MeasuredDialysateInletFlowRate = flow[0] self.MeasuredDialysateInletPumpRotorSpeed = rotor[0] self.MeasuredDialysateInletPumpSpeed = speed[0] self.MeasuredDialysateInletPumpMCSpeed = mcspeed[0] self.MeasuredDialysateInletPumpMCCurrent = mccurr[0] self.PWMDutyCyclePct = pwm[0] def CmdDialysateInletFlowSetPointOverride(self, reset, flow): """ Constructs and sends the dialysate flow set point override command \param reset: integer - 1 to reset a previous override, 0 to override \param flow: integer - flow set point (in mL/min) to override with \returns 1 if successful, zero otherwise """ rst = integer2ByteArray(reset) flo = integer2ByteArray(flow) payload = rst + flo message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_hd_ch_id, message_id=self.MSG_ID_HD_DIAL_IN_FLOW_SET_RATE_OVERRIDE, payload=payload) print("override dialysate flow set point") # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # print(received_message) if reset == HD.RESET: str_res = "reset back to normal" else: str_res = str(flow) print( "Dialysate flow set point overridden to " + str_res + " mL/min: " + str(received_message['message'][DenaliMessage.PAYLOAD_START_INDEX])) # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: print("Timeout!!!!") return False def CmdDialysateInletFlowMeasuredOverride(self, reset, flow): """ Constructs and sends the measured dialysate flow override command \param reset: integer - 1 to reset a previous override, 0 to override \param flow: integer - measured flow (in mL/min) to override with \returns 1 if successful, zero otherwise """ rst = integer2ByteArray(reset) flo = float2ByteArray(flow) payload = rst + flo message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_hd_ch_id, message_id=self.MSG_ID_HD_DIAL_IN_FLOW_MEAS_RATE_OVERRIDE, payload=payload) print("override measured dialysate flow") # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # print(received_message) if reset == HD.RESET: str_res = "reset back to normal" else: str_res = str(flow) print("Dialysate flow (measured)) overridden to " + str_res + " mL/min: " + str(received_message['message'][DenaliMessage.PAYLOAD_START_INDEX])) # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: print("Timeout!!!!") return False def CmdDialysateInletPumpMCMeasuredSpeedOverride(self, reset, speed): """ Constructs and sends the measured dialysate inlet pump motor controller speed \n override command. \param reset: integer - 1 to reset a previous override, 0 to override \param speed: integer - speed (in RPM) to override with \returns 1 if successful, zero otherwise """ rst = integer2ByteArray(reset) spd = float2ByteArray(speed) payload = rst + spd message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_hd_ch_id, message_id=self.MSG_ID_HD_DIAL_IN_PUMP_MC_MEAS_SPEED_OVERRIDE, payload=payload) print("override measured dialysate inlet pump motor controller speed") # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # print(received_message) if reset == HD.RESET: str_res = "reset back to normal" else: str_res = str(speed) print("Dialysate pump MC speed (measured) overridden to " + str_res + " RPM: " + str(received_message['message'][DenaliMessage.PAYLOAD_START_INDEX])) # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: print("Timeout!!!!") return False def CmdDialysateInletPumpMeasuredCurrentOverride(self, reset, curr): """ Constructs and sends the measured dialysate inlet pump motor current override command \param reset: integer - 1 to reset a previous override, 0 to override \param curr: integer - current (in mA) to override with \returns 1 if successful, zero otherwise """ rst = integer2ByteArray(reset) cur = float2ByteArray(curr) payload = rst + cur message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_hd_ch_id, message_id=self.MSG_ID_HD_DIAL_IN_PUMP_MC_MEAS_CURRENT_OVERRIDE, payload=payload) print("override measured dialysate inlet pump motor controller current") # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # print(received_message) if reset == HD.RESET: str_res = "reset back to normal" else: str_res = str(curr) print("Dialysate inlet pump MC current (measured) overridden to " + str_res + " mA: " + str(received_message['message'][DenaliMessage.PAYLOAD_START_INDEX])) # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: print("Timeout!!!!") return False def CmdDialysateInletPumpMeasuredSpeedOverride(self, reset, speed): """ Constructs and sends the measured dialysate inlet pump motor speed override \n command. \param reset: integer - 1 to reset a previous override, 0 to override \param speed: integer - speed (in RPM) to override with \returns 1 if successful, zero otherwise """ rst = integer2ByteArray(reset) spd = float2ByteArray(speed) payload = rst + spd message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_hd_ch_id, message_id=self.MSG_ID_HD_DIAL_IN_PUMP_MEAS_SPEED_OVERRIDE, payload=payload) print("override measured dialysate inlet pump speed") # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # print(received_message) if reset == HD.RESET: str_res = "reset back to normal" else: str_res = str(speed) print("Dialysate inlet pump speed (measured) overridden to " + str_res + " RPM: " + str(received_message['message'][DenaliMessage.PAYLOAD_START_INDEX])) # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: print("Timeout!!!!") return False def CmdDialysateInletPumpRotorMeasuredSpeedOverride(self, reset, speed): """ Constructs and sends the measured dialysate inlet pump rotor speed override \n command. \param reset: integer - 1 to reset a previous override, 0 to override \param speed: integer - speed (in RPM) to override with \returns 1 if successful, zero otherwise """ rst = integer2ByteArray(reset) spd = float2ByteArray(speed) payload = rst + spd message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_hd_ch_id, message_id=self.MSG_ID_HD_DIAL_IN_PUMP_ROTOR_MEAS_SPEED_OVERRIDE, payload=payload) print("override measured dialysate inlet pump rotor speed") # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # print(received_message) if reset == HD.RESET: str_res = "reset back to normal" else: str_res = str(speed) print("Dialysate inlet pump rotor speed (measured) overridden to " + str_res + " RPM: " + str(received_message['message'][DenaliMessage.PAYLOAD_START_INDEX])) # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: print("Timeout!!!!") return False def CmdDialysateInletFlowBroadcastIntervalOverride(self, reset, ms): """ Constructs and sends the measured dialysate inlet flow broadcast interval override command \param reset: integer - 1 to reset a previous override, 0 to override \param ms: integer - interval (in ms) to override with \returns 1 if successful, zero otherwise """ rst = integer2ByteArray(reset) mis = integer2ByteArray(ms) payload = rst + mis message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_hd_ch_id, message_id=self.MSG_ID_HD_DIAL_IN_FLOW_PUBLISH_INTERVAL_OVERRIDE, payload=payload) print("override dialysate inlet flow broadcast interval") # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: if reset == HD.RESET: str_res = "reset back to normal: " else: str_res = str(ms) + " ms: " print("Dialysate inlet flow broadcast interval overridden to " + str_res + str(received_message['message'][DenaliMessage.PAYLOAD_START_INDEX])) # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: print("Timeout!!!!") return False