Monitoring the location of a truck, car or any moving vehicle using the GPS system. Widely deployed to keep track of truck fleets, vehicle tracking ensures that the vehicles are being used properly and that they can be recovered in the event they are stolen.
Relay in Real Time
Vehicle tracking relies both on the Global Positioning satellites (GPS) and a cellular system. A tracking module in the vehicle continuously picks up the GPS coordinates that indicate the real-time location of the vehicle. Using a cellular data service, the coordinates are immediately transmitted to the tracking company's computers. Customers log in to the tracking company website to see their vehicles on road maps, similar to in-dash and handheld GPS-based navigation systems (see navigation system
No Relay - Report Later
There are non-real-time tracking systems in which the in-vehicle module records the coordinates, but does not relay them for real-time monitoring. The data are downloaded from the module when the vehicle is returned at the end of the trip. See mobile positioning
GPS Tracking in Real Time
Real-time tracking uses both GPS and cellular systems to relay vehicle coordinates to the tracking service.
T-Mobile's SyncUp DRIVE
Plugged into the OBD port, the SyncUp provides a virtual fence that alerts the user when arriving or departing. It is also used for monitoring business trips, vehicle maintenance while providing a Wi-Fi hotspot for passengers. See OBD