protected ObjectNode initTrip(GpsDataPacket start, GpsDataPacket end, Map<String, String> params) {

		ObjectNode trip = mapper.createObjectNode();
		trip.put(ID, start.getId());
		trip.put(IMEI_PARAM, start.getImei());
		trip.put(DEVICE_ID, start.getDeviceId());
		trip.put(DEVICE_LABEL_PARAM, start.getDeviceLabel());
		trip.put(START_DATE, start.getTime());
		trip.put(END_DATE, end.getTime());
		trip.put(START_POINT, start.getLat() + "," + start.getLng());
		trip.put(END_POINT, end.getLat() + "," + end.getLng());

		ObjectNode tripDistance = processTripDistance(start, end);
		processAggregateSpeedFilter(tripDistance, start, end);

		trip.put(DRIVING_TIME, StringUtil.formatTime(end.getTime() - start.getTime()));
		trip.put(TRIP_DURATION, tripDistance.get(TRIP_DURATION).asLong(0));
		trip.put(LENGTH, tripDistance.get(DISTANCE_KM).asDouble(0));
		trip.put(START_ODOMETER, tripDistance.get(START_ODOMETER).asDouble());
		trip.put(END_ODOMETER, tripDistance.get(END_ODOMETER).asDouble());
		trip.put(AVG_SPEED, tripDistance.get(AVG_SPEED).asDouble(0));
		trip.put(MIN_SPEED_PARAM, tripDistance.get(MIN_SPEED_PARAM).asDouble(0));
		trip.put(MAX_SPEED_PARAM, tripDistance.get(MAX_SPEED_PARAM).asDouble(0));
		trip.put(POINT_COUNT, tripDistance.get(POINT_COUNT).asDouble(0));

		return trip;
	}