def run(timezone):
bed_signal = Bedsensor(timezone)
i = 0
while i < NB_TRY:
logger.debug('initialization of API, test %i' % (i+1))
if initialize_APImode():
break
i = i + 1
if i == NB_TRY:
logger.error('The program fail to convert the Xbee module in API mode, try to restart')
meta_data = {'type': 'error'}
yield meta_data, None
while True:
signal = read_zigbee()
logger.debug('Data received: %s' % signal)
try:
meta_data, data = gather_data(signal, bed_signal)
logger.debug('data received: %s' % data)
if data is not None:
yield meta_data, data
except TypeError:
pass
def get_DR1(sample_data):
DR1 = {}
iterator = iter(sample_data)
sensors = ['R1', 'R2', 'R3', 'R4', 'R5', 'R6', 'R7', 'R8']
for sensor in sensors:
try:
utf8 = next(iterator) + next(iterator)
except:
logger.error('There are less than 8 values received')
return None
DR1[sensor] = sum([ord(octet) * pow(256, i)
for i, octet in enumerate(reversed(utf8))])
return DR1
def _init():
# TODO Put the config in the config file
MOCHADHOST = "127.0.0.1"
MOCHADPORT = 1099
while True:
try:
Sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
Sock.connect((MOCHADHOST, MOCHADPORT))
Sock.settimeout(10)
logger.debug("Successfully connected to Mochad")
return Sock
except socket.error as e:
Sock.close()
logger.error("Unable to listen from Mochad : %s" % e)
time.sleep(5)
def _init():
# TODO Put the config in the config file
MOCHADHOST = "127.0.0.1"
MOCHADPORT = 1099
while True:
try:
Sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
Sock.connect((MOCHADHOST, MOCHADPORT))
Sock.settimeout(10)
logger.debug("Successfully connected to Mochad")
return Sock
except socket.error as e:
Sock.close()
logger.error("Unable to listen from Mochad : %s" % e)
time.sleep(5)
def matches(self, signal):
signal_data = signal['rf_data']
signal_addr = signal['source_addr']
"""
The method to check if the signal received is corresponding with the bedsensor patern. If the signal is corresponding, we extract the information corresponding
"""
#Data FSR 1spl $ DR1 , ID , R0 R1 R2 R3 R4 R5 R6 R7 \n
#example: $DR1,\x00\x13\xa2\x00@\xa1N\xba,\x00\x00\x06\x84\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\n
#The other simple possible is $YOP,nb_FSR,nbFSC\n
#example: $YOP,08,02\n
#$DR1,\x00\x10\x02\r,\n\x90\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\n
logger.debug('Checking the signal "%s" in bedsensor program' % signal_data)
pattern = (r'^\$(?P<data_type>YOP|DR1).*$\n')
regexp = re.compile(pattern)
match = regexp.match(signal_data)
if match:
date = self.get_date()
sample_bits = signal_data.split(",")
if match.group('data_type') == 'YOP':
self.initialize(sample_bits)
return None, None
else:
"""
FSR data signal
"""
# if integrity(signal) == False:
# return None, None
logger.info('The signal matchs with the bedsensor DR1 data patern')
logger.debug('The DR1 sample is: %s' %sample_bits)
if len(sample_bits) < FRAGMENT_NUMBER: # It is necessary to put a condition because the Arduino sending binary values can send unexpected '/n'.
logger.error('There are %s fragments, this is less than the %s fragments expected in a sample' % (len(sample_bits), FRAGMENT_NUMBER))
return None, None
sample_ID = sample_bits[1]
bed_time = 0
for octet in sample_ID:
bed_time = (bed_time*256)+ord(octet)
bed_addr = 0
for octet in signal_addr:
bed_addr = (bed_addr*256)+ord(octet)
# bed_addr = int(signal_addr, 16)
bed_ID = 'BED-'+str(bed_addr)
sample_data = sample_bits[2]
DR1 = {}
i = 0
for val in ['R1','R2','R3','R4','R5','R6','R7','R8']:
try:
utf8 = sample_data[i]+sample_data[i+1]
except:
logger.error('There are less than 8 values received')
return None, None
DR1[val] = 0
for octet in utf8:
DR1[val] = (DR1[val]*256 )+ord(octet)
i = i+2
logger.debug('Measures of the FSR: %s, date: %s' % (DR1, date.isoformat()))
return self.formalize(DR1, bed_ID, bed_time, date, match.group('data_type'))
else:
logger.debug('The signal is not matching with the bedsensor patern')
return None, None
def integrity(self, signal):
if sys.getsizeof(signal) == SIZEOF_DR1:
logger.debug('The size of the data received is corresponding')
return True
logger.error('The size of the data received is not corresponding')
return False
