def averages_calculations(self):
accelerations = list()
#decelerations = list()
throttles = list()
rpms = list()
speeds = list()
lats = list()
longs = list()
mpgs = list()
coolants = list()
accel_average = 0
#decel_average = 0
throttle_average = 0
rpm_average = 0
speed_average = 0
mpg_average = 0
coolant_average = 0
record_accel = 0
#record_decel = 0
record_rpm = 0
record_throttle = 0
record_speed = 0
total_distance = 0
record_mpg = 0
for value in VBoxData.select():
if(value.acc_x > IMU_ZEROED_ACCEL_X): #exclude resting values
accelerations.append(value.acc_x)
#else:
#decelerations.append(value.acc_x)
if not value.obd_throttle_pos == None and not value.obd_throttle_pos == 0:
throttles.append(value.obd_throttle_pos) # need to change from obd_throttle_pos to obd_throttle_pos
if not value.obd_rpm == None and not value.obd_rpm == 0:
rpms.append(value.obd_rpm)
if not value.obd_speed == None and not value.obd_speed == 0:
speeds.append(value.obd_speed)
if not value.gps_lat == None:
lats.append(value.gps_lat)
if not value.gps_lon == None:
longs.append(value.gps_lat)
if not value.obd_maf == None and value.obd_maf != 0 and not value.obd_speed == None and value.obd_speed != 0:
#print '***MPG: ', 710.7 * (value.obd_speed / value.obd_maf)
mpgs.append(710.7 * (value.obd_speed / value.obd_maf))
if not value.obd_coolant_temp == None and value.obd_coolant_temp:
coolants.append(value.obd_coolant_temp)
count = 0
for distance in lats:
if count+1 <= len(lats):
total_distance = total_distance #+ distance_on_unit_sphere(lats[count+1], longs[count], lats[count+1], longs[count])
count = count + 1
for value in ProfileData.select().where(ProfileData.flag == 1):
record_accel = value.avg_accel
#record_decel = value.avg_decel
record_rpm = value.avg_rpm
record_throttle = value.avg_throttle
record_speed = value.avg_speed
record_mpg = value.mpg
try:
accel_average = float(sum(accelerations)/len(accelerations))
#decel_average = float(sum(decelerations)/len(decelerations))
rpm_average = float(sum(rpms)/len(rpms))
throttle_average = float(sum(throttles)/len(throttles))
speed_average = float(sum(speeds)/len(speeds))
mpg_average = float(sum(mpgs)/len(mpgs))
coolant_average = float(sum(coolants)/len(coolants))
except ZeroDivisionError:
#print "divide by zero\n"
pass
averages = [accel_average, throttle_average, rpm_average, speed_average, mpg_average, coolant_average, total_distance]
return averages
def run(self):
while not self.stopped():
try:
if not EventBuffer.empty():
# get next event
event_timestamp = EventBuffer.get()
# commit remaining db transaction
with self.db.transaction() as txn:
for record in TXN:
record.save()
del TXN[:]
# Set save locations of files
records_location = EVENTS_PATH + event_timestamp.strftime(TIMESTAMP_TO_PATH_FORMAT) + ".txt"
events_location = EVENTS_PATH + 'AllEvents.txt'
records_file = open(records_location, 'w')
events_file = open(events_location, 'a')
#Get certain records based on timestamp
lower_bound = event_timestamp - datetime.timedelta(seconds = RECORDING_DURATION_PRE_TRIGGER)
upper_bound = event_timestamp + datetime.timedelta(seconds = RECORDING_DURATION_POST_TRIGGER)
# write records to file
records = VBoxData.select().where((VBoxData.timestamp > lower_bound) & (VBoxData.timestamp < upper_bound))
for r in records:
timestamp = r.timestamp
gps_lat = "0.0" if r.gps_lat == None else "%.6f" % r.gps_lat
gps_lon = "0.0" if r.gps_lon == None else "%.6f" % r.gps_lon
acc_x = "-" if r.acc_x == None else "%.3f" % r.acc_x
acc_y = "-" if r.acc_y == None else "%.3f" % r.acc_y
gyro_x = "-" if r.gyro_x == None else "%.3f" % r.gyro_x
gyro_y = "-" if r.gyro_y == None else "%.3f" % r.gyro_y
gyro_z = "-" if r.gyro_z == None else "%.3f" % r.gyro_z
obd_mil = "-" if r.obd_mil == None else "%s" % r.obd_mil
obd_dtc_count = "-" if r.obd_dtc_count == None else "%d" % r.obd_dtc_count
obd_maf = "-" if r.obd_maf == None else "%.3f" % r.obd_maf
obd_speed = "-" if r.obd_speed == None else "%.3f" % r.obd_speed
obd_throttle_pos = "-" if r.obd_throttle_pos == None else "%.3f" % r.obd_throttle_pos
obd_rpm = "-" if r.obd_rpm == None else "%.3f" % r.obd_rpm
obd_coolant_temp = "-" if r.obd_coolant_temp == None else "%.3f" % r.obd_coolant_temp
obd_dtc = "-" if r.obd_dtc == None else r.obd_dtc
record_tuple = "%s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s\n" % (
timestamp.strftime('%H:%M:%S'), gps_lat, gps_lon, acc_x, acc_y, gyro_x, gyro_y, gyro_z,
obd_mil, obd_dtc_count, obd_maf, obd_speed,
obd_throttle_pos, obd_rpm, obd_coolant_temp, obd_dtc)
records_file.write(record_tuple)
records_file.close()
# update AllEvents
events_file.write(event_timestamp.strftime(TIMESTAMP_TO_PATH_FORMAT) + "\n")
events_file.close()
print "\tProcessData: Processed timestamp %s" % event_timestamp
else:
profile_data = self.averages_calculations()
profile = ProfileData.get(ProfileData.flag == 1)
profile.avg_accel = profile_data[0]
#profile.avg_decel = profile_data[1]
profile.avg_throttle = profile_data[1]
profile.avg_rpm = profile_data[2]
profile.avg_speed = profile_data[3]
profile.total_distance = profile_data[4]
profile.avg_coolant = profile_data[5]
profile.mpg = profile_data[6]
profile.save()
Averages.set("%.2f %.2f %.2f %.2f %.2f" %(profile_data[0], profile_data[0], profile_data[1], profile_data[3], profile_data[5]) )
#print averages_tuple
time.sleep(.1)
except Exception:
print '\n\tProcessData: Unhandled Exception. Exiting.'
print traceback.format_exc()
break
print "\tProcessData: done."
