Initial python driver
converted parts from Multi-Pond
This commit is contained in:
Patrick McDonagh
194
POCloud/python-driver/multisensor.py
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194
POCloud/python-driver/multisensor.py
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"""Driver for multisensor"""
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import threading
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import json
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import time
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from random import randint
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from device_base import deviceBase
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from Channel import PLCChannel, read_tag, write_tag
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from utilities import get_public_ip_address
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from logger import filelogger
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_ = None
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filelogger.info("multisensor startup")
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# GLOBAL VARIABLES
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WAIT_FOR_CONNECTION_SECONDS = 60
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WATCHDOG_ENABLE = True
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WATCHDOG_SEND_PERIOD = 3600 # Seconds, the longest amount of time before sending the watchdog status
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PLC_IP_ADDRESS = "192.168.1.12"
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CALIBRATION_TABLES = [[] for x in xrange(8)]
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CHANNELS = [
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PLCChannel(PLC_IP_ADDRESS, 'an0val', 'input0.scaledValue', 'REAL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an1val', 'input1.scaledValue', 'REAL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an2val', 'input2.scaledValue', 'REAL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an3val', 'input3.scaledValue', 'REAL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an4val', 'input4.scaledValue', 'REAL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an5val', 'input5.scaledValue', 'REAL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an6val', 'input6.scaledValue', 'REAL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an7val', 'input7.scaledValue', 'REAL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'pond0volume', 'input0.pondVolume', 'REAL', 1000.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'pond1volume', 'input1.pondVolume', 'REAL', 1000.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'pond2volume', 'input2.pondVolume', 'REAL', 1000.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'pond3volume', 'input3.pondVolume', 'REAL', 1000.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'pond4volume', 'input4.pondVolume', 'REAL', 1000.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'pond5volume', 'input5.pondVolume', 'REAL', 1000.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'pond6volume', 'input6.pondVolume', 'REAL', 1000.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'pond7volume', 'input7.pondVolume', 'REAL', 1000.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an0active', 'input0.active', 'BOOL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an1active', 'input1.active', 'BOOL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an2active', 'input2.active', 'BOOL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an3active', 'input3.active', 'BOOL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an4active', 'input4.active', 'BOOL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an5active', 'input5.active', 'BOOL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an6active', 'input6.active', 'BOOL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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PLCChannel(PLC_IP_ADDRESS, 'an7active', 'input7.active', 'BOOL', 1.0, 600, map_=False, write_enabled=False, plc_type="Micro800"),
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]
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class start(threading.Thread, deviceBase):
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"""Start class required by Meshify."""
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def __init__(self, name=None, number=None, mac=None, Q=None, mcu=None,
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companyId=None, offset=None, mqtt=None, Nodes=None):
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"""Initialize the driver."""
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threading.Thread.__init__(self)
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deviceBase.__init__(self, name=name, number=number, mac=mac, Q=Q,
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mcu=mcu, companyId=companyId, offset=offset,
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mqtt=mqtt, Nodes=Nodes)
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self.daemon = True
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self.version = "1"
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self.finished = threading.Event()
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self.force_send = False
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self.public_ip_address = ""
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self.public_ip_address_last_checked = 0
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self.watchdog = False
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self.watchdog_last_checked = 0
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self.watchdog_last_sent = 0
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threading.Thread.start(self)
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# this is a required function for all drivers, its goal is to upload some piece of data
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# about your device so it can be seen on the web
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def register(self):
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"""Register the driver."""
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# self.sendtodb("log", "BOOM! Booted.", 0)
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pass
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def run(self):
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"""Actually run the driver."""
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for i in range(0, WAIT_FOR_CONNECTION_SECONDS):
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print("multisensor driver will start in {} seconds".format(WAIT_FOR_CONNECTION_SECONDS - i))
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time.sleep(1)
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filelogger.info("BOOM! Starting multisensor driver...")
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self._check_watchdog()
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self._check_ip_address()
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self.nodes["multisensor_0199"] = self
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send_loops = 0
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watchdog_check_after = 60
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ip_check_after = 60
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while True:
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now = time.time()
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if self.force_send:
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filelogger.warning("FORCE SEND: TRUE")
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for chan in CHANNELS:
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val = chan.read()
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if chan.check(val, self.force_send):
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self.sendtodbDev(1, chan.mesh_name, chan.value, 0, 'multisensor')
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# print("multisensor driver still alive...")
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if self.force_send:
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if send_loops > 2:
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filelogger.warning("Turning off force_send")
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self.force_send = False
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send_loops = 0
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else:
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send_loops += 1
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if WATCHDOG_ENABLE:
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if (now - self.watchdog_last_checked) > watchdog_check_after:
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self._check_watchdog()
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if (now - self.public_ip_address_last_checked) > ip_check_after:
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self._check_ip_address()
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def read_pond_calibration(self, input_number):
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"""Read all calibration values for a specific pond."""
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last_read_height = -1.0
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cal_values = []
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cal_index = 1
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while last_read_height != 0 and cal_index <=10:
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cal_tag_height = "pond{}CalibrationHeight[{}]".format(input_number, cal_index)
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cal_tag_volume = "pond{}CalibrationVolume[{}]".format(input_number, cal_index)
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read_height = read_tag(PLC_IP_ADDRESS, cal_tag_height, plc_type="Micro800")
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time.sleep(2)
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read_volume = read_tag(PLC_IP_ADDRESS, cal_tag_volume, plc_type="Micro800")
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time.sleep(2)
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if read_height and read_volume:
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if read_height[0] > 0.0:
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cal_values.append({"height": read_height[0], "volume": read_volume[0]})
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last_read_height = read_height[0]
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cal_index += 1
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if cal_values != CALIBRATION_TABLES[input_number] or self.force_send:
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calibration_channel = "pond{}calibration".format(input_number)
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calibration_string = json.dumps(cal_values).replace('"', "'")
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self.sendtodbDev(1, calibration_channel, calibration_string, 0, 'plcpond')
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CALIBRATION_TABLES[input_number] = cal_values
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def _check_watchdog(self):
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"""Check the watchdog and send to Meshify if changed or stale."""
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test_watchdog = self.multisensor_watchdog()
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now = time.time()
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self.watchdog_last_checked = now
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if test_watchdog != self.watchdog or (now - self.watchdog_last_sent) > WATCHDOG_SEND_PERIOD:
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self.sendtodbDev(1, 'watchdog', test_watchdog, 0, 'multisensor')
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self.watchdog = test_watchdog
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self.watchdog_last_sent = now
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def _check_ip_address(self):
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"""Check the public IP address and send to Meshify if changed."""
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self.public_ip_address_last_checked = time.time()
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test_public_ip = get_public_ip_address()
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if not test_public_ip == self.public_ip_address:
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self.sendtodbDev(1, 'public_ip_address', test_public_ip, 0, 'multisensor')
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self.public_ip_address = test_public_ip
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def multisensor_watchdog(self):
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"""Write a random integer to the PLC and then 1 seconds later check that it has been decremented by 1."""
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randval = randint(0, 32767)
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write_tag(str(PLC_IP_ADDRESS), 'watchdog_INT', randval)
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time.sleep(1)
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watchdog_val = read_tag(str(PLC_IP_ADDRESS), 'watchdog_INT')
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try:
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return (randval - 1) == watchdog_val[0]
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except (KeyError, TypeError):
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return False
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def multisensor_sync(self, name, value):
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"""Sync all data from the driver."""
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self.force_send = True
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self.sendtodb("log", "synced", 0)
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return True
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def multisensor_writeplctag(self, name, value):
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"""Write a value to the PLC."""
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new_val = json.loads(str(value).replace("'", '"'))
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tag_n = str(new_val['tag']) # "cmd_Start"
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val_n = new_val['val']
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write_res = write_tag(str(PLC_IP_ADDRESS), tag_n, val_n)
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print("Result of multisensor_writeplctag(self, {}, {}) = {}".format(name, value, write_res))
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if write_res is None:
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write_res = "Error writing to PLC..."
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return write_res
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