def add_report_to_tracker(tracker_id, report):
logger.info('Adding report to tracker_id "{}": {}'.format(tracker_id, report))
day = set_tracker_day(tracker_id, report)
# update train position
if report.get_my_loc():
update_coords(report, tracker_id)
is_updated_stop_time = stop_detector.add_report(tracker_id, report)
if is_updated_stop_time:
logger.info('stop_time updated')
stop_times = stop_detector.get_detected_stop_times(tracker_id)
trip_delays_ids_list_of_lists = update_trips(tracker_id, day, stop_times)
trip_ids = get_trusted_trips(trip_delays_ids_list_of_lists)
for trip_id in trip_ids:
trip_delays_ids_list = [x for x in trip_delays_ids_list_of_lists if x[0][1] == trip_id][0]
if (len(stop_times)-1) in trip_delays_ids_list[0][2]:
if len(trip_delays_ids_list[0][2]) == 2: # Need to add the first station
if (len(stop_times)-2) in trip_delays_ids_list[0][2]:
stop_time = stop_times[trip_delays_ids_list[0][2][-2]]
logger.debug(stop_time)
save_stop_times_to_db(tracker_id, stop_time, trip_id)
else:
logger.error('Two stops were detected for trip, last detected stop for tracker belongs to trip, but one before last does not, while it most probably should.')
stop_time = stop_times[trip_delays_ids_list[0][2][-1]]
logger.debug(stop_time)
save_stop_times_to_db(tracker_id, stop_time, trip_id)
def _stop_detector_on_real_trip(self, device_id='1cb87f1e', do_preload_reports=True, set_reports_to_same_weekday_last_week=True, do_show_fig=False):
remove_from_redis([device_id])
now = ot_utils.get_localtime_now()
reports_queryset = get_device_id_reports(device_id)
tracker_id = device_id
if do_show_fig:
display_utils.draw_map()
fps_period_start = time.clock()
fps_period_length = 100
if do_preload_reports:
reports_queryset = list(reports_queryset)
count = len(reports_queryset) if isinstance(
reports_queryset, list) else reports_queryset.count()
for i in xrange(count):
if i % fps_period_length == 0:
elapsed = (time.clock() - fps_period_start)
if elapsed > 0:
logger.debug('%d\t%.1f qps' %
(i, fps_period_length / elapsed))
else:
logger.debug(
'Elapsed time should be positive but is %d' % (elapsed))
fps_period_start = time.clock()
report = reports_queryset[i]
if set_reports_to_same_weekday_last_week:
# fix finding same weekday last week by
# http://stackoverflow.com/questions/6172782/find-the-friday-of-previous-last-week-in-python
day_fix = (now.weekday() - report.timestamp.weekday()) % 7
day = now + datetime.timedelta(days=-day_fix)
# move day and correct for DST (daylight savings time)
dst_before = report.get_timestamp_israel_time().dst()
report.timestamp = report.timestamp.replace(
year=day.year, month=day.month, day=day.day)
dst_after = report.get_timestamp_israel_time().dst()
report.timestamp -= dst_after - dst_before
if do_show_fig:
plt.scatter(report.my_loc.lat, report.my_loc.lon)
plt.show()
#print i, ot_utils.get_localtime(report.timestamp)
is_updated_stop_time = add_report(tracker_id, report)
if is_updated_stop_time:
logger.debug('stop_time updated')
stop_detector.print_tracked_stop_times(device_id)
detected_stop_times = stop_detector.get_detected_stop_times(device_id)
ground_truth_stops = stop_detector_ground_truth.data[device_id]
for x, y in zip(detected_stop_times, ground_truth_stops):
self.assertEquals(x.__str__(), y.__str__())
remove_from_redis([device_id])
print 'done'
return tracker_id
def evaluate_detected_stop_times(self, device_id, trip_id):
detected_stop_times = stop_detector.get_detected_stop_times(tracker_id=device_id)
gtfs_stop_times = gtfs.models.StopTime.objects.filter(trip = trip_id).order_by('arrival_time').values_list('stop', 'arrival_time', 'departure_time')
acceptible_time_delta = 60 # one minute
for detected_stop_time, gtfs_stop_time in zip(detected_stop_times, gtfs_stop_times):
gtfs_stop_id = gtfs_stop_time[0]
gtfs_arrival = gtfs_stop_time[1]
gtfs_departure = gtfs_stop_time[2]
msg = str(detected_stop_time)
detected_arrival = ot_utils.datetime_to_db_time(detected_stop_time.arrival)
self.assertAlmostEquals(detected_arrival, gtfs_arrival, msg=msg, delta=acceptible_time_delta)
is_last_detected_stop = detected_stop_time == detected_stop_times[-1]
# allow for last stop to not have departure
if detected_stop_time.departure or not is_last_detected_stop:
detected_departure = ot_utils.datetime_to_db_time(detected_stop_time.departure)
self.assertAlmostEquals(detected_departure, gtfs_departure, msg=msg, delta=acceptible_time_delta)
def evaluate_detected_stop_times(self, device_id, trip_id):
detected_stop_times = stop_detector.get_detected_stop_times(
tracker_id=device_id)
trip = timetable.services.get_trip(trip_id)
gtfs_stop_times = trip.get_stop_times().values_list('stop', 'exp_arrival', 'exp_departure')
acceptible_time_delta = datetime.timedelta(minutes = 1)
for detected_stop_time, gtfs_stop_time in zip(detected_stop_times, gtfs_stop_times):
gtfs_arrival = gtfs_stop_time[1]
gtfs_departure = gtfs_stop_time[2]
msg = str(detected_stop_time)
self.assertAlmostEquals(
detected_stop_time.arrival, gtfs_arrival, msg=msg, delta=acceptible_time_delta)
is_last_detected_stop = detected_stop_time == detected_stop_times[
-1]
# allow for last stop to not have departure
if detected_stop_time.departure or not is_last_detected_stop:
self.assertAlmostEquals(
detected_stop_time.departure, gtfs_departure, msg=msg, delta=acceptible_time_delta)
