Files
brewpi/brewpi.py
T

83 lines
3.0 KiB
Python
Executable File

#!/usr/bin/env python3
import asyncio
import json
from utils import ChangedFloat
from ws.message import MessageDispatcher
from ws.server.ws_server_multi_user import WsServerMultiUser
from components.sensor import TempSensorFactory
from components.pid import PidFactory
from components.plant import Pot
from components.actor import HeaterFactory, StirrerFactory
from tasks import TaskManager, TempSensorTask, HeaterTask, PotTask, TcTask, StirrerTask, TracerTask
from tracer import Tracer
if __name__ == '__main__':
config = json.load(open("config.json"))
dispatcher = MessageDispatcher()
server = WsServerMultiUser(listener=dispatcher)
taskmgr = TaskManager()
DT = config['Controller']['dt']
DT_TASK = 1.0 / config['Controller']['sim_warp_factor']
DT_TASK_TRACER = 1.0
# Sensor
sensor = TempSensorFactory.create(config['Controller']['sensor_name'], temp_offset=-0.15)
taskmgr.add(TempSensorTask(sensor, DT_TASK, dispatcher.msgio_get("Sensor")))
# Plant
pot_params = config['Plant']
pot = Pot(DT, pot_params, 20)
taskmgr.add(PotTask(pot, DT_TASK, dispatcher.msgio_get("Pot")))
# Heater
heater = HeaterFactory.create(config['Controller']['heater_name'], config['Heater'])
heater.set_on_changed("power_eff", ChangedFloat(pot.set_power, prec=0).set)
heater_task = HeaterTask(heater, DT_TASK, dispatcher.msgio_get("Heater"))
taskmgr.add(heater_task)
# Temperature Controller
tc = PidFactory.create(config['Controller']['pid_type'], DT, config['TempCtrl'], config['Model'])
tc_task = TcTask(tc, DT_TASK, dispatcher.msgio_get("TempCtrl"))
taskmgr.add(tc_task)
tc_trace_vars = [
{'variable': 'theta_ist_plant', 'name': 'theta_ist_plant', 'unit': ''},
{'variable': 'dtheta_ist_plant', 'name': 'dtheta_ist_plant', 'unit': ''},
{'variable': 'theta_ist_model', 'name': 'theta_ist_model', 'unit': ''},
{'variable': 'dtheta_ist_model', 'name': 'dtheta_ist_model', 'unit': ''},
{'variable': 'theta_ist_model_delay', 'name': 'theta_ist_model_delay', 'unit': ''},
{'variable': 'dtheta_ist_model_delay', 'name': 'dtheta_ist_model_delay', 'unit': ''}
]
trace_tc = Tracer(tc, tc_trace_vars, name='tc_trace')
# Stirrer
stirrer = StirrerFactory.create(config['Controller']['stirrer_name'], DT, config['Stirrer'])
stirrer_task = StirrerTask(stirrer, DT_TASK, dispatcher.msgio_get("Stirrer"))
taskmgr.add(stirrer_task)
# Tracer
taskmgr.add(TracerTask(sensor, heater, tc, trace_tc, DT_TASK_TRACER, dispatcher.msgio_get("Tracer")))
# Assign data flow
# Assign tc control value to heater
tc.set_on_changed("y", heater_task.actor)
# Assign temp. sensor readings to tc
sensor.set_on_changed("temp", ChangedFloat(tc.set_theta_ist, prec=2).set)
# Assign heater power set to tc model
heater.set_on_changed("power_set", tc.set_model_power)
# For simulation
if "sim" in config['Controller']['sensor_name']:
pot.set_on_changed("temp", ChangedFloat(sensor.set_fake_temp, prec=3).set)
sensor.set_fake_temp(pot.temp)
# Message dispatcher
h_dispatcher = taskmgr.start()
h_server = server.listen("0.0.0.0", 8765)
asyncio.gather(h_dispatcher, h_server)
server.run_forever()