ajout script python
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teleinfo.py
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126
teleinfo.py
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# __author__ = "Sébastien Reuiller"
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# __licence__ = "Apache License 2.0"
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# Python 3, prerequis : pip install pySerial influxdb
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#
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# Exemple de trame:
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# {
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# 'OPTARIF': 'HC..', # option tarifaire
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# 'IMAX': '007', # intensité max
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# 'HCHC': '040177099', # index heure creuse en Wh
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# 'IINST': '005', # Intensité instantanée en A
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# 'PAPP': '01289', # puissance Apparente, en VA
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# 'MOTDETAT': '000000', # Mot d'état du compteur
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# 'HHPHC': 'A', # Horaire Heures Pleines Heures Creuses
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# 'ISOUSC': '45', # Intensité souscrite en A
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# 'ADCO': '000000000000', # Adresse du compteur
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# 'HCHP': '035972694', # index heure pleine en Wh
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# 'PTEC': 'HP..' # Période tarifaire en cours
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# }
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import serial
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import logging
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import time
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import requests
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from datetime import datetime
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from influxdb import InfluxDBClient
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# clés téléinfo
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int_measure_keys = ['IMAX', 'HCHC', 'IINST', 'PAPP', 'ISOUSC', 'ADCO', 'HCHP']
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# création du logguer
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logging.basicConfig(filename='/var/log/teleinfo/releve.log', level=logging.INFO, format='%(asctime)s %(message)s')
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logging.info("Teleinfo starting..")
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# connexion a la base de données InfluxDB
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client = InfluxDBClient('localhost', 8086)
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db = "teleinfo"
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connected = False
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while not connected:
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try:
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logging.info("Database %s exists?" % db)
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if not {'name': db} in client.get_list_database():
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logging.info("Database %s creation.." % db)
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client.create_database(db)
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logging.info("Database %s created!" % db)
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client.switch_database(db)
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logging.info("Connected to %s!" % db)
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except requests.exceptions.ConnectionError:
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logging.info('InfluxDB is not reachable. Waiting 5 seconds to retry.')
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time.sleep(5)
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else:
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connected = True
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def add_measures(measures, time_measure):
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points = []
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for measure, value in measures.items():
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point = {
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"measurement": measure,
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"tags": {
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"host": "raspberry",
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"region": "linky"
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},
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"time": datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%SZ"),
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"fields": {
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"value": value
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}
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}
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points.append(point)
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client.write_points(points)
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def main():
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with serial.Serial(port='/dev/ttyS0', baudrate=1200, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE,
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bytesize=serial.SEVENBITS, timeout=1) as ser:
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logging.info("Teleinfo is reading on /dev/ttyS0..")
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trame = dict()
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# boucle pour partir sur un début de trame
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line = ser.readline()
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while b'\x02' not in line: # recherche du caractère de début de trame
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line = ser.readline()
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# lecture de la première ligne de la première trame
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line = ser.readline()
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while True:
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line_str = line.decode("utf-8")
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ar = line_str.split(" ")
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try:
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key = ar[0]
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if key in int_measure_keys :
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value = int(ar[1])
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else:
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value = ar[1]
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checksum = ar[2]
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trame[key] = value
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if b'\x03' in line: # si caractère de fin dans la ligne, on insère la trame dans influx
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del trame['ADCO'] # adresse du compteur : confidentiel!
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time_measure = time.time()
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# insertion dans influxdb
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add_measures(trame, time_measure)
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# ajout timestamp pour debugger
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trame["timestamp"] = int(time_measure)
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logging.debug(trame)
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trame = dict() # on repart sur une nouvelle trame
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except Exception as e:
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logging.error("Exception : %s" % e)
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line = ser.readline()
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if __name__ == '__main__':
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if connected:
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main()
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