jens
dd3c63bebf
- plant: added duty cycle to heater control git-svn-id: http://moon:8086/svn/projects/HendiControl@271 fda53097-d464-4ada-af97-ba876c37ca34
56 lines
1.2 KiB
Python
56 lines
1.2 KiB
Python
import numpy as np
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import json
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from aplant import APlant
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from math import sqrt
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from hendiCtrl import HendiCtrl
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from max31865 import Max31865
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class Plant(APlant):
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def __init__(self):
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self.heater = HendiCtrl('/dev/ttyUSB0', 115200)
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self.tempsensor = Max31865()
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self.P = 0
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self.isOn = False
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self.cycleTime = 10
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self.dutyCycle = 1
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self.cycleCounter = 0
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def activate(self, enable=True):
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if enable == True:
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self.heater.remoteEnable(enable)
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self.heater.setSwitch(enable)
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else:
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self.heater.setSwitch(enable)
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self.heater.remoteEnable(enable)
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def process(self, dt=1):
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isOn = self.isOn
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self.cycleCounter += dt
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if self.cycleCounter >= self.cycleTime:
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self.cycleCounter -= self.cycleTime
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isOn = 0
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if self.cycleCounter >= (self.cycleTime * (1-self.dutyCycle)):
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if not isOn:
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isOn = 1
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if self.isOn != isOn:
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if isOn:
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self.heater.setSwitch(True)
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else:
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self.heater.setSwitch(False)
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self.isOn = isOn
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def setPower(self, power_w):
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self.P = power_w
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self.heater.setPowerWatts(max(500, power_w))
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self.dutyCycle = min(1, power_w / 500)
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def getPower(self):
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return self.heater.getPowerWatts()
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def getTemperature(self):
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return self.tempsensor.temperature()
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