A device, called a Vehicle Tracking Unit (VTU), is fitted discretely to a vehicle. The box is powered from the electrical circuitry of the vehicle and has an antenna system attached to it. The box uses two systems in order to function correctly. The first is the GPS navigation service that is provided by a series of satellites in orbit around the Earth. The box is "listening" to these satellites and constantly calculating its position. The second system is the GPRS facility provided by the GSM networks. This is used to "transmit" information about the vehicle at every minute.
The information is sent to the LatLong server, this information consists of the vehicle identity, location (in terms of a grid reference), speed and direction of travel, along with some additional features. The server collects and display this information with the help of user friendly web application. The viewer can "see" all vehicles all the time when logged on, look at all the vehicles on different maps in REAL TIME. You can create historic replays of journeys also on a map. Being a real time system we are able to "Alert" the user of arrival/departure or vehicle condition (door openings, PTO operation or other telematic inputs) as they happen. An inclusive function of the system is the report manager, where the user is able to create, read and store written reports of vehicle movements for later analysis. This can be done at anytime or "scheduled" to be emailed directly from the server.