Patent ID: 8031114

Claim:
An infrastructure for geofencing of vehicles, comprising means for monitoring a vehicle's geographical position; means for storing geofence data; means for comparing the vehicle's geographical position with said geofence data to determine a geofence violation; and means to trigger a predefined action in case of geofence violation; said infrastructure being characterized by means for defining geographical subregions of the whole area covered by said geofence data; means for subdividing said geofence data into sub-geofences matching said geographical subregions and for generating association information associating said sub-geofences to the corresponding geographical subregions; a first storage device for keeping all sub-geofence data and association information; a second storage device for keeping association information and the sub-geofence data of at least one selected geographical subregion; means for locating the vehicle in one of said geographical subregions on the base of the vehicle's geographical position and said definition of geographical subregions; and means for restricting the determination of a geofence violation to a comparison of the vehicle's position with the sub-geofence data of the thus identified geographical subregion.