METHOD OF PROTECTION OF TRANSPORT VEHICLE AGAINST UNAUTHORISED USE Russian patent published in 2008 - IPC B60R25/00 

FIELD: transportation.

SUBSTANCE: invention relates to protection of vehicles (transport facilities) from unauthorised use and is intended for prevention of theft of transport facilities. The procedure is as follows. The first step is authorising the transport facility protection condition. Then the first unit and one of the portable tracking appliances get cut in to identify a user outside the vehicle. Given the positive condition, the protection is cut off and the User is allowed an access into the vehicle. After cutting in the ignition, the first unit of reading out the data and the transponder (a marking), the User inside the vehicle is identified and in case of a negative result the engine is blocked. If the user lost its trinket or a transponder or if they were stolen, or if the first readout unit fails but the user needs its car, the car door is opened and the activated protection circuit is cut out to prevent operation of the sound and light alarm signals. Also, blocked is the operation of the antitheft system aimed at locking the engine operation. For this, inside the vehicle one more readout unit is installed and the User is provided with an extra transponder. To stop the alarm signalling activated by the User, an emergency transponder is carried into the zone of action of the second data readout unit. The emergency transponder code is identified to cut off signaling whatsoever and the engine is unlocked.

EFFECT: invention allows simplifying the procedure of removing the protection without decrease in safety.

4 cl, 1 dwg