101 lines
3.5 KiB
Python
101 lines
3.5 KiB
Python
#!/usr/bin/python
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import threading
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import time
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from device_base import deviceBase
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import requests
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try:
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import json
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except:
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import simplejson as json
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channels = {}
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min_upload_time = 120
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addr = 'http://192.168.1.30:3000'
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def setupChannels():
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tagJSObj = json.loads(requests.get(addr + "/tag").text)
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for t in tagJSObj:
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channel_name = t['name'].replace(" ", "").lower()
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channels[channel_name] = {
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'tagID': t['id'],
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'last_value': -999,
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'data_type': t['data_type']['plc_type'],
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'last_time_uploaded': 0,
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'change_amount': t['change_threshold'],
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'min_time_between_uploads': min_upload_time
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}
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class start(threading.Thread, deviceBase):
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def updateGPS(self):
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gps = self.mcu.gps
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print("GPS found me at {0}".format(gps))
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self.sendtodb("gps", gps, 0)
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def __init__(self, name=None, number=None, mac=None, Q=None, mcu=None, companyId=None, offset=None, mqtt=None, Nodes=None):
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threading.Thread.__init__(self)
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deviceBase.__init__(self, name=name, number=number, mac=mac, Q=Q, mcu=mcu, companyId=companyId, offset=offset, mqtt=mqtt, Nodes=Nodes)
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self.daemon = True
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self.version = "3"
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self.device_address = addr
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self.finished = threading.Event()
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threading.Thread.start(self)
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self.sendtodbJSON("device_address", self.device_address, 0)
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setupChannels()
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self.updateGPS()
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def register(self):
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channels["status"]["last_value"] = ""
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def run(self):
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self.runLoopStatus = ""
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last_OK_state = 0
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while True:
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if len(channels) > 0:
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try:
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latest_vals = json.loads(requests.get(self.device_address + "/tag_val/latest").text)
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for tag in latest_vals:
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runLoopStatus = tag['name']
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ch_name = tag['name'].replace(" ", "").lower()
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if ch_name in channels:
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ch = channels[ch_name]
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nowVal = tag['val']
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if (abs(ch['last_value'] - nowVal) > ch['change_amount']) or ((time.time() - ch['last_time_uploaded']) > ch['min_time_between_uploads']):
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self.sendtodbJSON(ch_name, nowVal, 0)
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ch['last_time_uploaded'] = time.time()
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ch['last_value'] = nowVal
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runLoopStatus = "Complete"
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OK_state = 1
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if not OK_state == last_OK_state:
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self.sendtodbJSON("driverok", OK_state, 0)
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last_OK_state = OK_state
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time.sleep(3)
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except Exception, e:
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OK_state = 0
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if not OK_state == last_OK_state:
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self.sendtodbJSON("driverok", OK_state, 0)
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last_OK_state = OK_state
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sleep_timer = 20
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print "Error during {0} of run loop: {1}\nWill try again in {2} seconds...".format(runLoopStatus, e, sleep_timer)
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time.sleep(sleep_timer)
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else:
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setupChannels()
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time.sleep(30)
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def tagserver_sync(self, name, value):
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self.sendtodb("connected", "true", 0)
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return True
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def tagserver_address(self, name, value):
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self.device_address = value
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return True
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def tagserver_gpsUpdate(self, name, value):
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global updateGPS
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updateGPS()
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return True
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