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comparison py/fridge.py @ 465:a40f30fad8f6

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Merge
author Matt Johnston <matt@ucc.asn.au>
date Mon, 21 Jan 2013 07:25:52 +0800
parents a91adc95543d
children 5d5424acfed0
comparison
equal deleted inserted replaced
464:c3926e7cfb0c 465:a40f30fad8f6
1 # -*- coding: utf-8 -*- 1 # -*- coding: utf-8 -*-
2 from utils import L,W,E,EX 2 from utils import L,W,E,EX,D
3 import config 3 import config
4 import gevent 4 import gevent
5 5
6 class Fridge(gevent.Greenlet): 6 class Fridge(gevent.Greenlet):
7 7
48 % (self.value_file.name, buf)) 48 % (self.value_file.name, buf))
49 return True 49 return True
50 50
51 # greenlet subclassed 51 # greenlet subclassed
52 def _run(self): 52 def _run(self):
53 if self.server.params.disabled:
54 L("Fridge is disabled")
53 while True: 55 while True:
54 self.do() 56 self.do()
55 gevent.sleep(config.FRIDGE_SLEEP) 57 gevent.sleep(config.FRIDGE_SLEEP)
56 58
57 def do(self): 59 def do(self):
67 69
68 off_time = self.server.now() - self.fridge_off_clock 70 off_time = self.server.now() - self.fridge_off_clock
69 71
70 if off_time < config.FRIDGE_DELAY: 72 if off_time < config.FRIDGE_DELAY:
71 L("fridge skipping, too early") 73 L("fridge skipping, too early")
74 return
75
76 if params.disabled:
77 if self.is_on():
78 L("Disabled, turning fridge off")
79 self.off()
72 return 80 return
73 81
74 # handle broken wort sensor 82 # handle broken wort sensor
75 if wort is not None: 83 if wort is not None:
76 self.wort_valid_clock = self.server.now() 84 self.wort_valid_clock = self.server.now()
91 overshoot = 0 99 overshoot = 0
92 if on_time > params.overshoot_delay: 100 if on_time > params.overshoot_delay:
93 overshoot = params.overshoot_factor \ 101 overshoot = params.overshoot_factor \
94 * min(self.OVERSHOOT_MAX_DIV, on_time) \ 102 * min(self.OVERSHOOT_MAX_DIV, on_time) \
95 / self.OVERSHOOT_MAX_DIV 103 / self.OVERSHOOT_MAX_DIV
96 L("on_time %(on_time)f, overshoot %(overshoot)f" % locals()) 104 D("on_time %(on_time)f, overshoot %(overshoot)f" % locals())
97 105
98 if wort is not None: 106 if wort is not None:
99 if (wort - overshoot) < params.fridge_setpoint: 107 if (wort - overshoot) < params.fridge_setpoint:
100 L("wort has cooled enough") 108 L("wort has cooled enough")
101 turn_off = True 109 turn_off = True
113 else: 121 else:
114 # fridge is off 122 # fridge is off
115 turn_on = False 123 turn_on = False
116 if wort is not None: 124 if wort is not None:
117 if wort >= wort_max: 125 if wort >= wort_max:
118 L("Wort is too hot") 126 L("Wort is too hot %f, max %f" % (wort, wort_max))
119 turn_on = True 127 turn_on = True
120 else: 128 else:
121 # wort sensor is broken 129 # wort sensor is broken
122 if fridge is not None and fridge >= fridge_max: 130 if fridge is not None and fridge >= fridge_max:
123 W("frdge on fallback") 131 W("frdge on fallback")
124 turn_on = True 132 turn_on = True
125 133
126 if turn_on: 134 if turn_on:
127 L("Turning fridge on") 135 L("Turning fridge on")
128 self.on() 136 self.on()
129 fridge_on_clock = self.server.now() 137 self.fridge_on_clock = self.server.now()