Unit history

The prerequisites for accessing the unit history are listed on the Monitoring page.

The History tab provides historical unit data, including trip details, parking intervals, fuel filling, consumption and drains, battery charges and consumption, and events registered after triggered notifications.

The history shows data for the last 300 days.

To access the unit history:

1. Open the Monitoring tab in the navigation bar.
2. Tap the required unit section.
3. Select the History tab.

The History tab displays:

• Unit location on the map: The unit location based on the last message.
• Latest data: Real-time information as described on the Unit sections with latest data page.
• Historical unit data: data on trips, parking intervals, fuel fillings, drains, and consumption, battery charges and consumption. In addition, the tab can display events registered by means of notifications.

From the History tab, you can also access the unit menu by tapping the icon .

The data on the tab is presented in chronological order and is formed on the basis of the messages received in the last 24 hours. The data is not formed on the basis of the messages generated more than 24 hours ago (after they are unloaded from the black box).

By default, the data is displayed for the current day. You can get the data for another day in one of the ways described below.

• Select the required day in the calendar.
• Swipe down or up to add the previous or next day to the list. If necessary, repeat the action to add more days.

The top row shows summary information for the day:

• trip duration;

•  track length in trips;

• parking duration;

•  total fuel consumption in trips if there is a fuel level sensor (see details here);

•  average fuel consumption per 100 km or mi in trips if there is a fuel level sensor;

•  total battery consumption if there is a battery level sensor;

•  average battery consumption per 100 km or mi in trips if there is a battery level sensor.

• Fuel and battery data are calculated according to those sensors in the properties of which the Calculate data by the sensor option is enabled in the web version of Wialon. If the option is enabled in the properties of several sensors of one type, their readings are summed up.
• If a trip starts on one day and ends on the next, all the fuel consumed during such a trip is attributed proportionally to both the first and second day at the same time.

• When detecting trips, the Wialon mobile application uses the trip detection settings.

• If a trip starts on one day and ends on the next, the total mileage of such a trip is attributed to both the first and second day at the same time.

The trip mileage on the History tab may differ from the mileage on the Tracks tab and the Wialon web version. This occurs due to different data processing methods: for the History tab, data is processed in real time, while for the Tracks tab and most reports in the web version, messages from the database are used upon request. In case of such discrepancies, the value on the History tab is more accurate.

Below is the information displayed for each type of data. To see the place that corresponds to them on the map, tap the required line in the list. The icon in the selected line is displayed in a contrasting colour. For example, the icon of a fuel filling changes from  to .

Icon	Type of data	Available information
	Trip	the start time of the trip; duration; track length; maximum unit speed; speeding: the unit has exceeded the speed limit, speed limit indicated on the Advanced tab of the unit properties in the web version of Wialon; fuel consumed during the trip: its amount () and average consumption per 100 km () or miles per gallon () for U.S. and imperial measurement systems; battery energy consumed during the trip: its amount () and average consumption per 100 km () or miles. The amount of fuel consumed during the trip is determined by the fuel level sensor (FLS); the amount of consumed energy, by the battery level sensor. If there are several sensors of one type, the sum of their values is displayed. The amount of fuel in the application may differ slightly from the resulting data in the reports executed in the web version of Wialon. This can be caused by the following reasons: the fluctuations of the FLS analog data; particularities of division into intervals, and the use of grouping in reports; peculiarities of the algorithm used for calculating and rounding fuel values in the mobile application, which differs from the algorithm in the web version. When you tap a trip row, its track is displayed on the map.
	Parking	the start time of the parking duration parking time with the ignition on location
	Ignition	sensor name the time of turning the ignition on the time that has passed since the ignition was turned on This information is displayed if the unit has had the ignition on according to the sensor, but no trip has been detected. The information about ignition is available if the unit has an ignition sensor. To determine the time intervals during which the ignition sensor was on or off, the system takes into account the values of the Maximum interval between messages option in the unit properties and the Timeout option in the ignition sensor properties. The smaller of the two values is used. Learn how sensor operation intervals are determined in the Timeout option description.
	Fuel filling	the time of the fuel filling (time of the greatest difference in fuel level) the amount of filled fuel location
	Fuel drain	the time of the fuel drain (time of the greatest difference in fuel level); the amount of drained fuel location. If fillings and drains are marked as false in the monitoring system, they are excluded from the history.
	Battery charge	the time of the battery charge (time of the greatest difference in battery level) the amount of charged energy location

The History tab can display all events registered by means of notifications with the Register event for unit action. To enable this, activate the Events from notifications in unit history switch in the Notifications section of the settings. You can create and configure such notifications only in the web version of Wialon. See more about the notification notification types.

Depending on the notification type, the registered events are indicated by the following icons:

Icon	Event
	Speed
	Alarm (SOS)
	Parameter in a message
	Connection loss
	SMS
	Address
	Fuel filling or battery charge
	Route progress
	Trailer
	Passenger alarm
	Geofence
	Digital input
	Sensor value
	Idling
	Interposition of units
	Excess of messages
	Fuel drain
	Driver
	Passenger activity
	Maintenance

To see an event on the map, tap the required line in the list. The icon in the selected line is displayed in a contrasting colour. For example, the icon of the event for the Speed notification type changes from  to . If the event is registered by means of a notification, the event information displays the notification text.

The icons  and  are used to indicate the beginning and end of the trip, respectively. The segments of the track where speeding was detected are coloured in red.