Research on the active discrimination of key vehicle's not-according-to-the-prescribed-routes based on the gate system's passing through information

For strengthening the effective supervision of key vehicles' illegal driving which are not in accordance with the prescribed routes, and to prevent and reduce the road accidents, this paper puts forward a method of the active discrimination of key vehicle's not-according-to-the-prescribed-routes based on the gate system's passing through information. Through analyzing key vehicles' passing records and the prescribed route, it can identify whether the objective vehicle driver is driving on the prescribed route or not, in case of the drivers deliberately shielding GPS positioning signal.