ajout script python

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Sébastien Reuiller 2019-02-13 23:32:50 +01:00
parent 36c227f379
commit f2fa838ab1

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teleinfo.py Normal file
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# __author__ = "Sébastien Reuiller"
# __licence__ = "Apache License 2.0"
# Python 3, prerequis : pip install pySerial influxdb
#
# Exemple de trame:
# {
# 'OPTARIF': 'HC..', # option tarifaire
# 'IMAX': '007', # intensité max
# 'HCHC': '040177099', # index heure creuse en Wh
# 'IINST': '005', # Intensité instantanée en A
# 'PAPP': '01289', # puissance Apparente, en VA
# 'MOTDETAT': '000000', # Mot d'état du compteur
# 'HHPHC': 'A', # Horaire Heures Pleines Heures Creuses
# 'ISOUSC': '45', # Intensité souscrite en A
# 'ADCO': '000000000000', # Adresse du compteur
# 'HCHP': '035972694', # index heure pleine en Wh
# 'PTEC': 'HP..' # Période tarifaire en cours
# }
import serial
import logging
import time
import requests
from datetime import datetime
from influxdb import InfluxDBClient
# clés téléinfo
int_measure_keys = ['IMAX', 'HCHC', 'IINST', 'PAPP', 'ISOUSC', 'ADCO', 'HCHP']
# création du logguer
logging.basicConfig(filename='/var/log/teleinfo/releve.log', level=logging.INFO, format='%(asctime)s %(message)s')
logging.info("Teleinfo starting..")
# connexion a la base de données InfluxDB
client = InfluxDBClient('localhost', 8086)
db = "teleinfo"
connected = False
while not connected:
try:
logging.info("Database %s exists?" % db)
if not {'name': db} in client.get_list_database():
logging.info("Database %s creation.." % db)
client.create_database(db)
logging.info("Database %s created!" % db)
client.switch_database(db)
logging.info("Connected to %s!" % db)
except requests.exceptions.ConnectionError:
logging.info('InfluxDB is not reachable. Waiting 5 seconds to retry.')
time.sleep(5)
else:
connected = True
def add_measures(measures, time_measure):
points = []
for measure, value in measures.items():
point = {
"measurement": measure,
"tags": {
"host": "raspberry",
"region": "linky"
},
"time": datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%SZ"),
"fields": {
"value": value
}
}
points.append(point)
client.write_points(points)
def main():
with serial.Serial(port='/dev/ttyS0', baudrate=1200, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE,
bytesize=serial.SEVENBITS, timeout=1) as ser:
logging.info("Teleinfo is reading on /dev/ttyS0..")
trame = dict()
# boucle pour partir sur un début de trame
line = ser.readline()
while b'\x02' not in line: # recherche du caractère de début de trame
line = ser.readline()
# lecture de la première ligne de la première trame
line = ser.readline()
while True:
line_str = line.decode("utf-8")
ar = line_str.split(" ")
try:
key = ar[0]
if key in int_measure_keys :
value = int(ar[1])
else:
value = ar[1]
checksum = ar[2]
trame[key] = value
if b'\x03' in line: # si caractère de fin dans la ligne, on insère la trame dans influx
del trame['ADCO'] # adresse du compteur : confidentiel!
time_measure = time.time()
# insertion dans influxdb
add_measures(trame, time_measure)
# ajout timestamp pour debugger
trame["timestamp"] = int(time_measure)
logging.debug(trame)
trame = dict() # on repart sur une nouvelle trame
except Exception as e:
logging.error("Exception : %s" % e)
line = ser.readline()
if __name__ == '__main__':
if connected:
main()