def RegisterReceiveCallback(self,aReceiveCallback):
self.ReceiveCallback = aReceiveCallback
try:
_thread.start_new_thread(self.SerialReadlineThread, ())
except:
s=sys.exc_info()[0]
print("Error starting Read thread: ", sys.exc_info()[0])
logger_warning.warning('RegisterReceiveCallback : {}'.format(s))
def __del__(self):
try:
if self.serialport.is_open():
self.serialport.close()
except:
s=sys.exc_info()[0]
print("Destructor error closing COM port: ", s)
logger_warning.warning('Destructor : {}'.format(s))
def cCelToFah(celsius) :
try:
fahrenheit= 9./5.*celsius+32
except:
s=sys.exc_info()[0]
print("Error converting Celsius to Fahrenheit : ", s )
logger_warning.warning("Error converting Celsius to Fahrenheit : {}".format(s) )
else:
return fahrenheit
def cFahToCel(fahrenheit) :
try:
celsius= 5./9.*(fahrenheit-32)
except:
s=sys.exc_info()[0]
print("Error converting Fahrenheit to Celsius : ", s)
logger_warning.warning("Error converting Fahrenheit to Celsius : {}".format(s) )
else:
return celsius
def Close(self):
if self.isopen:
try:
self.serialport.close()
self.isopen = False
except:
s=sys.exc_info()[0]
print("Close error closing COM port: ", s)
logger_warning.warning('Close : {}'.format(s))
def SerialReadlineThread(self):
while 1:
try:
if self.isopen:
self.receivedMessage = self.serialport.readline()
if self.receivedMessage != "":
self.ReceiveCallback(self.receivedMessage)
except:
s=sys.exc_info()[0]
print("Error reading COM port: ",s)
logger_warning.warning('SerialReadlineThread : {}'.format(s))
sys.exit(0) # evite une écriture infini dans le fichier log
def insert_db(query, values):
try:
print("Execute")
cur.execute(query, values)
print("Commit")
db.commit()
print("Insert end")
#print(cur.rowcount, "record inserted")
# Gestion position des capteurs
except:
s = sys.exc_info()[0]
print("Error database insertion : ", s)
logger_warning.warning('insert_db : {}'.format(s))
def fermer_prog(signal, frame):
try:
serialPort.Close()
db.close()
sys.stdout.flush()
#print("Exit")
except:
s = sys.exc_info()[0]
print("Error closing gateway.py: ", s)
logger_warning.warning('fermer_prog : {}'.format(s))
finally:
logger_info.info("Gateway STOP")
logger_warning.warning("Gateway STOP")
sys.exit(0)
def Send(self,message):
if self.isopen:
try:
# Ensure that the end of the message has both \r and \n, not just one or the other
newmessage = message.strip()
newmessage += '\r\n'
self.serialport.write(newmessage.encode('utf-8'))
except:
s=sys.exc_info()[0]
print("Error sending message: ", s )
logger_warning.warning('Send : {}'.format(s))
else:
return True
else:
return False
def Open(self,portname,baudrate,bytesize,parity,stopbits):
if not self.isopen:
# serialPort = 'portname', baudrate, bytesize = 8, parity = 'N', stopbits = 1, timeout = None, xonxoff = 0, rtscts = 0)
self.serialport.port = portname
self.serialport.baudrate = baudrate
self.serialport.bytesize = int(bytesize)
self.serialport.parity = parity
self.serialport.stopbits = int(stopbits)
try:
self.serialport.open()
self.isopen = True
except:
s=sys.exc_info()[0]
print("Error opening COM port: ", s)
logger_warning.warning('Open : {}'.format(s))
def heat_index(temperature, rh):
try:
T = cCelToFah(temperature)
rh2 = rh * rh
T2 = T * T
# Calculation based on https://www.wpc.ncep.noaa.gov/html/heatindex_equation.shtml and http://www.atmos.albany.edu/student/msmith/misc/vtemp.py
# Calculate the Heat Index -- constants converted for RH in [0, 100]
# Steadman equation
hi = (-42.379
+ 2.04901523 *T
+ 10.14333127 * rh
- 0.22475541 * T * rh
- 6.83783e-3 * T2
- 5.481717e-2 * rh2
+ 1.22874e-3 * T2 * rh
+ 8.5282e-4 * T * rh2
- 1.99e-6 * T2 * rh2)
if (rh < 13.00 and T >= 80.00 and T<=112.00):
delta = ((13.-rh)/4.)*sqrt((17.-abs(T-95.))/17.)
res = cFahToCel(hi-delta)
elif (rh >= 85.00 and T >= 80.00 and T<=87.00):
delta = ((rh-85.)/10.)*(87.-T)/5.
res = cFahToCel(hi+delta)
elif (rh >= 40.00 and T >= 80.00): # 80°F = 26.67°C voir aussi https://en.wikipedia.org/wiki/Heat_index
res = cFahToCel(hi)
else :
res = cFahToCel(0.5 * (T + 61.0 + (T-68.0)*1.2 + rh*0.094))
except:
s=sys.exc_info()[0]
print("Error converting temperature to heat index : ", s )
logger_warning.warning("Error converting temperature to heat index : {}".format(s) )
else:
return round(res, 2)
# -*- coding: utf-8 -*
import signal
import time
import sys
import serial_rx_tx # Serial port
from log_files import logger_info, logger_warning
from config import port, baudrate, bytesize, parity, stopbits
from capteurs import *
logger_info.info("Gateway START")
logger_warning.warning("Gateway START")
ACK_OPTION = True # RASPBERRY_1 renvoie acknoledge
#ACK_OPTION= False # RASPBERRY_2 pas de renvoie acknoledge
# Lors de la fermeture du programme
def fermer_prog(signal, frame):
try:
serialPort.Close()
db.close()
sys.stdout.flush()
#print("Exit")
except:
s = sys.exc_info()[0]
print("Error closing gateway.py: ", s)
logger_warning.warning('fermer_prog : {}'.format(s))