611 lines
22 KiB
Python
611 lines
22 KiB
Python
import json
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import time
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import sys, signal
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import gpiod
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from pymodbus.client import ModbusTcpClient
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# import AWSIoTPythonSDK.MQTTLib as AWSIoTPyMQTT
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import sdtcloudnodeqmqtt
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import pytz
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from datetime import datetime
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import threading, socket
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import uuid
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import logging
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from logging.handlers import RotatingFileHandler
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def Motor(chip, status, action):
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if action == 'On':
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status[0] = 1
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else: # action == 'Off'
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status[0] = 0
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chip.set_values(status)
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def Valve_Vent(chip, status, action):
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if action == 'On':
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status[1] = 1
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else: # action == 'Off'
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status[1] = 0
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chip.set_values(status)
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def Valve_MixedWater(chip, status, action):
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if action == 'On':
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status[2] = 1
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else: # action == 'Off'
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status[2] = 0
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chip.set_values(status)
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def Valve_PureWater(chip, status, action, duration=7):
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global pure_valve_status
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status[2] = 0
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status[3] = 0
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chip.set_values(status)
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time.sleep(0.05)
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if pure_valve_status != 0 and action == 'Off':
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status[2] = 0
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status[3] = 1
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chip.set_values(status)
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time.sleep(7)
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pure_valve_status = 0
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elif pure_valve_status == 0 and action == 'On':
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status[2] = 1
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status[3] = 0
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chip.set_values(status)
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time.sleep(duration)
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if duration >= 7:
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pure_valve_status = 2
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elif duration < 7:
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pure_valve_status = 1
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status[2] = 0
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status[3] = 0
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chip.set_values(status)
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time.sleep(0.05)
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# def Valve_EnterWater(chip, status, action):
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def Valve_EnterWater(chip, status, action, duration=7):
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# if action == 'On':
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# status[4] = 1
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# else: # action == 'Off'
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# status[4] = 0
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# chip.set_values(status)
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global main_valve_status
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status[5] = 0
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status[6] = 0
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chip.set_values(status)
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time.sleep(0.05)
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if main_valve_status != 0 and action == 'Off':
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status[5] = 0
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status[6] = 1
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chip.set_values(status)
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time.sleep(7)
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main_valve_status = 0
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elif main_valve_status == 0 and action == 'On':
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status[5] = 1
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status[6] = 0
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chip.set_values(status)
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time.sleep(duration)
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if duration >= 7:
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main_valve_status = 2
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elif duration < 7:
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main_valve_status = 1
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status[5] = 0
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status[6] = 0
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chip.set_values(status)
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time.sleep(0.05)
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# def Valve_MainWater(chip, status, action, duration=7):
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def Valve_MainWater(chip, status, action):
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global main_valve_status
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# status[5] = 0
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# status[6] = 0
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# chip.set_values(status)
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# time.sleep(0.05)
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# if main_valve_status != 0 and action == 'Off':
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# status[5] = 0
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# status[6] = 1
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# chip.set_values(status)
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# time.sleep(7)
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# main_valve_status = 0
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# elif main_valve_status == 0 and action == 'On':
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# status[5] = 1
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# status[6] = 0
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# chip.set_values(status)
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# time.sleep(duration)
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# if duration >= 7:
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# main_valve_status = 2
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# elif duration < 7:
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# main_valve_status = 1
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# status[5] = 0
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# status[6] = 0
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# chip.set_values(status)
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# time.sleep(0.05)
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if action == 'On':
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status[4] = 1
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else: # action == 'Off'
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status[4] = 0
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chip.set_values(status)
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def Measure_Weight(client):
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# print('in')
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val = 0
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try:
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result = client.read_holding_registers(1, 1)
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if not result:
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print(f'Error: {result}')
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else:
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val = result.registers[0]
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val -= 1000
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val /= 1000
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# print(f'value: {val}')
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except Exception as e:
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print(f'Measure_Weight Error: {e}')
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pass
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return float(val)
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def Calculate_Concentration(weight):
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global data, volume_water
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data['data']['weight'] = weight
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result = (float(weight) * volume_water * 128.5) - 126.11 # 1000 / 531 = 1.883239171
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data['data']['concentration'] = result
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# print(f'{weight}, {result}')
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return result
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def Set_Zero(client):
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client.write_coil(1, 1)
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def Command_Read():
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global client, main_valve_status, logger
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with open('./control.json', 'r') as f:
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cmd = json.load(f)
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if cmd['type'] == 'auto':
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main_duration = float(cmd['device']['main']['duration'])
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pure_duration = float(cmd['device']['pure']['duration'])
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step0_duration = float(cmd['working-time']['step0'])
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step1_duration = float(cmd['working-time']['step1'])
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step2_duration = float(cmd['working-time']['step2'])
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step3_duration = float(cmd['working-time']['step3'])
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step4_duration = float(cmd['working-time']['step4'])
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step5_duration = float(cmd['working-time']['step5'])
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step6_duration = float(cmd['working-time']['step6'])
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step7_duration = float(cmd['working-time']['step7'])
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step8_duration = float(cmd['working-time']['step8'])
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step9_duration = float(cmd['working-time']['step9'])
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# Step 0. Mesure init weight before starting the sequence
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time.sleep(step0_duration)
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start = Measure_Weight(client=client)
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# Step 1. Vent pured water before input mixed water
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# Target valve status: [Motor: Off, Vent: On, Pure: Off, Enter: On, Main: On]
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# Valve_EnterWater(chip=output_lines, status=status, action='On')
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Valve_MainWater(chip=output_lines, status=status, action='On')
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time.sleep(0.5)
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Valve_Vent(chip=output_lines, status=status, action='On')
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time.sleep(0.5)
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# Valve_MainWater(chip=output_lines, status=status, action='On', duration=main_duration)
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Valve_EnterWater(chip=output_lines, status=status, action='On', duration=main_duration)
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time.sleep(step1_duration)
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# Step 2. Empty the remaining pure water
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# Target valve status: [Motor: Off, Vent: On, Pure: Off, Enter: Off, Main: On]
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Valve_EnterWater(chip=output_lines, status=status, action='Off')
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time.sleep(step2_duration)
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# Step 3. Input the mixed water
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# Target valve status: [Motor: Off, Vent: Off, Pure: Off, Enter: On, Main: On]
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Valve_Vent(chip=output_lines, status=status, action='Off')
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time.sleep(0.5)
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# Valve_EnterWater(chip=output_lines, status=status, action='On')
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Valve_EnterWater(chip=output_lines, status=status, action='On', duration=main_duration)
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time.sleep(step3_duration)
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# Step 4. Mesure the weight
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# Target valve status: [Motor: Off, Vent: Off, Pure: Off, Enter: Off, Main: Off]
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Valve_EnterWater(chip=output_lines, status=status, action='Off')
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time.sleep(0.5)
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Valve_MainWater(chip=output_lines, status=status, action='Off')
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time.sleep(step4_duration)
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end = Measure_Weight(client=client)
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time.sleep(1)
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res = Calculate_Concentration(weight=(float(end)-float(start)))
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logger.debug(f'[auto] weight: {end - start} concentration: {res:.3f}')
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# Step 5. Drain the mixed water and add pure water.
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# Target valve status: [Motor: Off, Vent: On, Pure: On, Enter: On, Main: Off]
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Valve_EnterWater(chip=output_lines, status=status, action='On')
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time.sleep(0.5)
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Valve_Vent(chip=output_lines, status=status, action='On')
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time.sleep(0.5)
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# Valve_PureWater(chip=output_lines, status=status, action='On', duration=pure_duration)
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Valve_PureWater(chip=output_lines, status=status, action='On')
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time.sleep(step5_duration)
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# Step 6. Drain mixed water
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# Target valve status: [Motor: Off, Vent: On, Pure: On, Enter: Off, Main: Off]
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Valve_EnterWater(chip=output_lines, status=status, action='Off')
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time.sleep(step6_duration)
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# Step 7. Input pure water and clean
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# Target valve status: [Motor: On, Vent: Off, Pure: On, Enter: On, Main: Off]
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Valve_EnterWater(chip=output_lines, status=status, action='On')
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time.sleep(0.5)
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Valve_Vent(chip=output_lines, status=status, action='Off')
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time.sleep(0.5)
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Motor(chip=output_lines, status=status, action='On')
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time.sleep(step7_duration)
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# Step 8. Drain pure Water
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# Target valve status: [Motor: On, Vent: On, Pure: Off, Enter: Off, Main: Off]
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Valve_EnterWater(chip=output_lines, status=status, action='Off')
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time.sleep(0.5)
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Valve_Vent(chip=output_lines, status=status, action='On')
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time.sleep(0.5)
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Valve_PureWater(chip=output_lines, status=status, action='Off')
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time.sleep(step8_duration)
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# Step 9. Stop moter
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# Target valve status: [Motor: Off, Vent: On, Pure: Off, Enter: Off, Main: Off]
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Motor(chip=output_lines, status=status, action='Off')
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time.sleep(step9_duration)
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return 1
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elif cmd['type'] == 'clean':
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logger.debug(f"[clean] duration: {int(cmd['maintenance']['clean']['duration'])}")
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clean_system()
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time.sleep(3)
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else: # cmd['type'] == 'manual'
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Motor(chip=output_lines, status=status, action=cmd['device']['motor']['action'])
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Valve_Vent(chip=output_lines, status=status, action=cmd['device']['vent']['action'])
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# Valve_MixedWater(chip=output_lines, status=status, action=cmd['device']['mixed']['action'])
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# Valve_PureWater(chip=output_lines, status=status, action=cmd['device']['pure']['action'])
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# Valve_EnterWater(chip=output_lines, status=status, action=cmd['device']['enter']['action'])
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Valve_MainWater(chip=output_lines, status=status, action=cmd['device']['main']['action'])
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if cmd['device']['pure']['duration'] == 0:
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Valve_PureWater(chip=output_lines, status=status, action=cmd['device']['pure']['action'])
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else:
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Valve_PureWater(chip=output_lines, status=status, action=cmd['device']['pure']['action'], duration=cmd['device']['pure']['duration'])
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# if cmd['device']['main']['duration'] == 0:
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# Valve_MainWater(chip=output_lines, status=status, action=cmd['device']['main']['action'])
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# else:
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# Valve_MainWater(chip=output_lines, status=status, action=cmd['device']['main']['action'], duration=cmd['device']['main']['duration'])
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if cmd['device']['main']['duration'] == 0:
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Valve_EnterWater(chip=output_lines, status=status, action=cmd['device']['enter']['action'])
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else:
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Valve_EnterWater(chip=output_lines, status=status, action=cmd['device']['enter']['action'], duration=cmd['device']['main']['duration'])
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if cmd['device']['measure']['action'] == 'On':
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result = Measure_Weight(client=client)
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Calculate_Concentration(result)
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return 1
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if cmd['device']['setzero']['action'] == 'On':
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Set_Zero(client=client)
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return 0
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def clean_system():
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global main_valve_status
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with open('./control.json', 'r') as f:
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cmd = json.load(f)
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clean_duration = int(cmd['maintenance']['clean']['duration'])
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if cmd['type'] == 'clean':
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Valve_EnterWater(chip=output_lines, status=status, action='Off')
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time.sleep(0.5)
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Valve_MainWater(chip=output_lines, status=status, action='On')
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time.sleep(0.5)
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Valve_PureWater(chip=output_lines, status=status, action='On')
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time.sleep(clean_duration)
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Valve_MainWater(chip=output_lines, status=status, action='Off')
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time.sleep(0.5)
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Valve_EnterWater(chip=output_lines, status=status, action='On')
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time.sleep(0.5)
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Valve_Vent(chip=output_lines, status=status, action='On')
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time.sleep(clean_duration)
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Valve_PureWater(chip=output_lines, status=status, action='Off')
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time.sleep(0.5)
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Valve_Vent(chip=output_lines, status=status, action='Off')
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time.sleep(0.5)
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Valve_EnterWater(chip=output_lines, status=status, action='Off')
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time.sleep(0.5)
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def runAction():
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# Write the app's actions in the "runAction" function.
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# Connect MQTT Broker
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# You have to rename client id. There are special rules.
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# Client Name: "device-app-*"
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# For Example
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# 1. device-app-test -> Good
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# 2. device-app-light-app -> Good
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# 3. device-test-app -> Bad
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global data
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sdtcloud = sdtcloudnodeqmqtt.sdtcloudnodeqmqtt()
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mqttClient1 = sdtcloud.setClient(f"device-app-1{uuid.uuid1()}") # parameter is client ID(string)
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mqttClient2 = sdtcloud.setClient(f"device-app-2{uuid.uuid1()}") # parameter is client ID(string)
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mqttClient3 = sdtcloud.setClient(f"device-app-3{uuid.uuid1()}") # parameter is client ID(string)
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mqttClient4 = sdtcloud.setClient(f"device-app-4{uuid.uuid1()}") # parameter is client ID(string)
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mqttClient5 = sdtcloud.setClient(f"device-app-5{uuid.uuid1()}") # parameter is client ID(string)
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mqttlist = [mqttClient1, mqttClient2, mqttClient3, mqttClient4, mqttClient5]
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# If you have config's value, please make config.json file.
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# - Project Code's variable: projectCode(string)
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# - Asset Code's variable: assetCode(string)
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# - You may need it to create a topic.
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cnt = 0
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clean_flag = 0
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while True:
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start = time.time()
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result = Command_Read()
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if result:
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data['timestamp'] = int(time.time() * 1000)
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sdtcloud.pubMessage(mqttlist[cnt], data)
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cnt += 1
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if cnt == 5:
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cnt = 0
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end = time.time()
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try:
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now = datetime.now(pytz.timezone('Asia/Seoul'))
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time_str = now.strftime('%H')
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time_int = int(time_str)
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with open('./control.json', 'r') as f:
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cmd = json.load(f)
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if time_int == int(cmd['maintenance']['clean']['time']):
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if clean_flag < 3:
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clean_flag += 1
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clean_system()
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else:
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clean_flag = 0
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except:
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pass
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diff = end - start
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if diff < 3:
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time.sleep(3 - diff)
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def handle_client(conn, ip, port):
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global data, logger
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while True:
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try:
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recv = conn.recv(100)
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if not recv:
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# print(f"Connection with {addr} was reset. Waiting for new connection.")
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break
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message = recv.decode().strip()
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if message[:3] != 'STX' or message[-3:] != 'ETX':
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err_msg = 'STXERRORETX'
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conn.sendall(err_msg.encode("utf8"))
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else:
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if message[3] == 'R': # Transfer data from SDT to Sampyo
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now = datetime.now(pytz.timezone('Asia/Seoul'))
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time_str = now.strftime('%Y%m%d%H%M%S')
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h_weight = float(data['data']['weight'])
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h_concentration = float(data['data']['concentration'])
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data_weight = '{:.3f}'.format(h_weight)
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data_concent = '{:.3f}'.format(h_concentration)
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logger.debug(f'TCP [R:Transfer data] weight: {data_weight}, concent: {data_concent}')
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send_msg = 'STX' + time_str + '|' + data_weight + '|' + data_concent + 'ETX'
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try:
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with open('./control.json', 'r') as f:
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cmd = json.load(f)
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cmd['device']['measure']['action'] = 'On'
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with open('./control.json', 'w') as f:
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json.dump(cmd, f, indent=4)
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conn.sendall(send_msg.encode("utf8"))
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except Exception as e:
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err_msg = 'STXERRORETX'
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conn.sendall(err_msg.encode("utf8"))
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elif message[3] == 'S': # Start measurement
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logger.debug(f'TCP [S:Start measurement]')
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try:
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with open('./control.json', 'r') as f:
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cmd = json.load(f)
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cmd['type'] = 'auto'
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with open('./control.json', 'w') as f:
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json.dump(cmd, f, indent=4)
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send_msg = 'STXOKETX'
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conn.sendall(send_msg.encode("utf8"))
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except Exception as e:
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err_msg = 'STXERRORETX'
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conn.sendall(err_msg.encode("utf8"))
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elif message[3] == 'C': # Clean sequence
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logger.debug(f'TCP [C:Clean sequence]')
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try:
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with open('./control.json', 'r') as f:
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cmd = json.load(f)
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cmd['type'] = 'clean'
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with open('./control.json', 'w') as f:
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json.dump(cmd, f, indent=4)
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send_msg = 'STXOKETX'
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conn.sendall(send_msg.encode("utf8"))
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except Exception as e:
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err_msg = 'STXERRORETX'
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conn.sendall(err_msg.encode("utf8"))
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elif message[3] == 'T': # Stop measurement
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logger.debug(f'TCP [T:Stop measurement]')
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try:
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with open('./control.json', 'r') as f:
|
|
cmd = json.load(f)
|
|
|
|
cmd['type'] = 'manual'
|
|
cmd['device']['measure']['action'] = 'Off'
|
|
|
|
with open('./control.json', 'w') as f:
|
|
json.dump(cmd, f, indent=4)
|
|
|
|
send_msg = 'STXOKETX'
|
|
conn.sendall(send_msg.encode("utf8"))
|
|
except Exception as e:
|
|
err_msg = 'STXERRORETX'
|
|
conn.sendall(err_msg.encode("utf8"))
|
|
|
|
else:
|
|
err_msg = 'STXERRORETX'
|
|
conn.sendall(err_msg.encode("utf8"))
|
|
except ConnectionResetError:
|
|
# print("Connection with " + ip + ":" + port + " was reset. Waiting for new connection.")
|
|
break
|
|
|
|
# print("Closing the connection")
|
|
|
|
def start_server(addr, port):
|
|
host = addr # "172.17.16.201"
|
|
port = port # 5000
|
|
|
|
soc = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
soc.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
|
|
|
|
try:
|
|
soc.bind((host, port))
|
|
except:
|
|
sys.exit()
|
|
|
|
soc.listen(1) # Only one connection at a time.
|
|
|
|
while True:
|
|
conn, addr = soc.accept()
|
|
ip, port = str(addr[0]), str(addr[1])
|
|
print("Connected with " + ip + ":" + port)
|
|
|
|
client_handler = threading.Thread(target=handle_client, args=(conn, ip, port))
|
|
client_handler.start()
|
|
|
|
soc.close()
|
|
|
|
def seoul_time(*args):
|
|
utc_dt = datetime.now()
|
|
seoul_tz = pytz.timezone('Asia/Seoul')
|
|
return utc_dt.replace(tzinfo=pytz.utc).astimezone(seoul_tz).timetuple()
|
|
|
|
def exit_handler(signum, frame):
|
|
Motor(chip=output_lines, status=status, action='Off')
|
|
Valve_Vent(chip=output_lines, status=status, action='Off')
|
|
# Valve_MixedWater(chip=output_lines, status=status, action='Off')
|
|
Valve_PureWater(chip=output_lines, status=status, action='Off')
|
|
Valve_EnterWater(chip=output_lines, status=status, action='Off')
|
|
Valve_MainWater(chip=output_lines, status=status, action='Off')
|
|
|
|
client.close()
|
|
|
|
sys.exit(0)
|
|
|
|
if __name__ == "__main__":
|
|
# Set GPIO
|
|
output_chip = gpiod.chip('gpiochip11')
|
|
config = gpiod.line_request()
|
|
config.consumer = 'output'
|
|
config.request_type = gpiod.line_request.DIRECTION_OUTPUT
|
|
|
|
output_lines = output_chip.get_lines([0, 1, 2, 3, 4, 5, 6, 7])
|
|
output_lines.request(config, default_vals=[0, 0, 0, 0, 0, 0, 0, 0])
|
|
|
|
status = [0, 0, 0, 0, 0, 0, 0, 0]
|
|
|
|
# When forced to terminate
|
|
signal.signal(signal.SIGINT, exit_handler)
|
|
|
|
# Set the logger
|
|
logger = logging.getLogger('sampyo_dio')
|
|
logger.setLevel(logging.DEBUG)
|
|
handler = RotatingFileHandler('/home/root/working.log', maxBytes=1024*1024, backupCount=3)
|
|
handler.setLevel(logging.DEBUG)
|
|
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
|
|
formatter.converter = seoul_time
|
|
handler.setFormatter(formatter)
|
|
logger.addHandler(handler)
|
|
|
|
# Initialized valves
|
|
main_valve_status = 0
|
|
pure_valve_status = 0
|
|
|
|
Valve_MainWater(chip=output_lines, status=status, action='Off')
|
|
Valve_PureWater(chip=output_lines, status=status, action='Off')
|
|
|
|
# Read config file
|
|
with open('./config.json', encoding='UTF-8') as f:
|
|
jsonData = json.load(f)
|
|
|
|
# Set the weight of water in the chamber
|
|
volume_water = 1000.0 / float(jsonData['volume-water'])
|
|
|
|
# Set the IP address and port of NodeQ RS-232 module and activate TCP Client
|
|
modbus_addr = jsonData['modbus-server']['address']
|
|
modbus_port = jsonData['modbus-server']['port']
|
|
|
|
client = ModbusTcpClient(modbus_addr, modbus_port)
|
|
|
|
# Define the default data format
|
|
data = {
|
|
"timestamp": 0,
|
|
"data":{
|
|
"weight": 0,
|
|
"concentration": 0
|
|
}
|
|
}
|
|
|
|
## Get ProjectCode and AssetCode
|
|
|
|
## Execution main funcion
|
|
operation_thread = threading.Thread(target=runAction, args=())
|
|
operation_thread.start()
|
|
|
|
tcp_addr = jsonData['tcp-server']['address']
|
|
tcp_port = jsonData['tcp-server']['port']
|
|
## Execution TCP/IP server
|
|
start_server(addr=tcp_addr, port=tcp_port)
|