-
Notifications
You must be signed in to change notification settings - Fork 12
/
metermon.py
167 lines (153 loc) · 6.62 KB
/
metermon.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
#!/usr/bin/python
import os
import sys
import json
import subprocess
import time
import paho.mqtt.client as mqtt
# read in needed env variables
MQTT_BROKER_HOST = os.getenv('MQTT_BROKER_HOST',"127.0.0.1")
MQTT_BROKER_PORT = int(os.getenv('MQTT_BROKER_PORT',1883))
MQTT_CLIENT_ID = os.getenv('MQTT_CLIENT_ID',"metermon")
MQTT_USERNAME = os.getenv('MQTT_USERNAME',"")
MQTT_PASSWORD = os.getenv('MQTT_PASSWORD',"")
MQTT_TOPIC_PREFIX = os.getenv('MQTT_TOPIC_PREFIX',"metermon")
RTL_TCP_SERVER = os.getenv('RTL_TCP_SERVER',"127.0.0.1:1234")
RTLAMR_MSGTYPE = os.getenv('RTLAMR_MSGTYPE',"all")
RTLAMR_UNIQUE = os.getenv('RTLAMR_UNIQUE',"true")
METERMON_SEND_RAW = os.getenv('METERMON_SEND_RAW',"False")
METERMON_SEND_BY_ID = os.getenv('METERMON_SEND_BY_ID', "False")
METERMON_ELECTRIC_DIVISOR = float(os.getenv('METERMON_ELECTRIC_DIVISOR',100.0))
#METERMON_GAS_DIVISOR = float(os.getenv('METERMON_GAS_DIVISOR', 1.0))
METERMON_WATER_DIVISOR = float(os.getenv('METERMON_WATER_DIVISOR', 10.0))
R900_LOOKUP = {
"HISTORY": {
0: "0",
1: "1-2",
2: "3-7",
3: "8-14",
4: "15-21",
5: "22-34",
6: "35+",
},
"INTENSITY": {
0: "None",
1: "Low",
2: "High",
}
}
R900_ATTRIBS = {
"Leak": "HISTORY",
"NoUse": "HISTORY",
"BackFlow": "INTENSITY",
"LeakNow": "INTENSITY",
}
# The callback for when the client receives a CONNACK response from the server.
def on_connect(client, userdata, flags, reason_code, properties):
# print connection statement
print(f"Connected to broker at {MQTT_BROKER_HOST}:{MQTT_BROKER_PORT} with reason code {reason_code}: "+mqtt.connack_string(reason_code))
# set mqtt status message
client.publish(MQTT_TOPIC_PREFIX+"/status",payload="Online",qos=1,retain=True)
def on_disconnect(client, userdata, flags, reason_code, properties):
if reason_code != 0:
print(f"Unexpected disconnection from broker (RC={reason_code}). Attempting to reconnect...")
# set up mqtt client
client = mqtt.Client(callback_api_version=mqtt.CallbackAPIVersion.VERSION2,client_id=MQTT_CLIENT_ID)
if MQTT_USERNAME and MQTT_PASSWORD:
client.username_pw_set(MQTT_USERNAME,MQTT_PASSWORD)
print("Username and password set.")
client.will_set(MQTT_TOPIC_PREFIX+"/status", payload="Offline", qos=1, retain=True) # set LWT
client.on_connect = on_connect # on connect callback
client.on_disconnect = on_disconnect # on disconnect callback
# connect to broker
client.connect(MQTT_BROKER_HOST, port=MQTT_BROKER_PORT)
client.loop_start()
# start RTLAMR
cmdargs = [
'rtlamr',
'-format=json',
f'-server={RTL_TCP_SERVER}',
f'-msgtype={RTLAMR_MSGTYPE}',
f'-unique={RTLAMR_UNIQUE}',
]
proc = subprocess.Popen(cmdargs, stdout=subprocess.PIPE)
# read output of RTLAMR
while True:
line = proc.stdout.readline()
if not line:
break
data=json.loads(line)
msg=json.loads('{"Protocol":"Unknown","Type":"Unknown","ID":"Unknown","Consumption":0,"Unit":"Unknown"}')
# read data, create json objects, and publish MQTT message for every meter message received
# set Protocol
msg['Protocol'] = data['Type']
# SCM messages
if msg['Protocol'] == "SCM":
msg['ID'] = str(data['Message']['ID'])
if data['Message']['Type'] in (4,5,7,8): # electric meter
msg['Type'] = "Electric"
msg['Consumption'] = data['Message']['Consumption'] / METERMON_ELECTRIC_DIVISOR # convert to kWh
msg['Unit'] = "kWh"
elif data['Message']['Type'] in (2,9,12): # gas meter
msg['Type'] = "Gas"
msg['Consumption'] = data['Message']['Consumption']
msg['Unit'] = "ft^3"
elif data['Message']['Type'] in (3,11,13): # water meter
msg['Type'] = "Water"
msg['Consumption'] = data['Message']['Consumption'] / METERMON_WATER_DIVISOR # convert to gal
msg['Unit'] = "gal"
# SCM+ messages
elif msg['Protocol'] == "SCM+":
msg['ID'] = str(data['Message']['EndpointID'])
if data['Message']['EndpointType'] in (4,5,7,8,110): # electric meter
msg['Type'] = "Electric"
msg['Consumption'] = data['Message']['Consumption'] / METERMON_ELECTRIC_DIVISOR # convert to kWh
msg['Unit'] = "kWh"
elif data['Message']['EndpointType'] in (2,9,12,156,188,220): # gas meter
msg['Type'] = "Gas"
msg['Consumption'] = data['Message']['Consumption']
msg['Unit'] = "ft^3"
elif data['Message']['EndpointType'] in (3,11,13,171): # water meter
msg['Type'] = "Water"
msg['Consumption'] = data['Message']['Consumption'] / METERMON_WATER_DIVISOR # convert to gal
msg['Unit'] = "gal"
# IDM messages
elif msg['Protocol'] == "IDM":
msg['Type'] = "Electric"
msg['ID'] = str(data['Message']['ERTSerialNumber'])
msg['Consumption'] = data['Message']['LastConsumptionCount'] / METERMON_ELECTRIC_DIVISOR # convert to kWh
msg['Unit'] = "kWh"
# NetIDM messages
elif msg['Protocol'] == "NetIDM":
msg['Type'] = "Electric"
msg['ID'] = str(data['Message']['ERTSerialNumber'])
msg['Consumption'] = data['Message']['LastConsumptionNet'] / METERMON_ELECTRIC_DIVISOR # convert to kWh
msg['Unit'] = "kWh"
# R900 messages
elif msg['Protocol'] == "R900":
msg['Type'] = "Water"
msg['ID'] = str(data['Message']['ID'])
msg['Consumption'] = data['Message']['Consumption'] / METERMON_WATER_DIVISOR # convert to gal
msg['Unit'] = "gal"
for attr, kind in R900_ATTRIBS.items():
value = data['Message'].get(attr)
if value is not None:
try:
msg[attr] = R900_LOOKUP[kind][value]
except KeyError:
print(f"Could not process R900 value ({attr}: {value})")
# R900bcd messages
elif msg['Protocol'] == "R900BCD":
msg['Type'] = "Water"
msg['ID'] = str(data['Message']['ID'])
msg['Consumption'] = data['Message']['Consumption'] / METERMON_WATER_DIVISOR # convert to gal
msg['Unit'] = "gal"
# filter out cases where consumption value is negative
if msg['Consumption'] > 0:
client.publish(MQTT_TOPIC_PREFIX+"/output",json.dumps(msg)) # publish
if METERMON_SEND_BY_ID.lower() == "true":
client.publish(MQTT_TOPIC_PREFIX+"/"+msg['ID'],json.dumps(msg)) # also publish by ID if enabled
print(json.dumps(msg)) # also print
# send raw json message if enabled
if METERMON_SEND_RAW.lower() == "true":
client.publish(MQTT_TOPIC_PREFIX+"/raw",json.dumps(data)) # publish