METHOD FOR GUARD OF VEHICLE AND DEVICE FOR ITS REALIZATION Russian patent published in 2006 - IPC B60R25/00 

FIELD: protection of mobile objects from an unauthorized use.

SUBSTANCE: the method consists in setting on guard of the vehicle and removal from guard with the aid of one of a great number of electronic gates by carrying-out of contact identification of the electronic gate at its touching of the contact area of the code reader in the vehicle cabin. Provision is made for locking and unlocking of the door locks, switching-on and switching-off of the electric power supply, locking of the engine and its unlocking. Locking and unlocking of the door locks, switching-on and switching-off of the electric power supply are also performed with the aid of the electronic gate. For removal from guard one more stage is introduced, which is accomplished by the first stage outside the vehicle cabin by conducting of a contact code identification of the electronic gate at its toughing of the code reader contact area outside the vehicle. Unlocking of the door locks is accomplished simultaneously with conducting of the first stage of removal from guard, and switching-on of electric power supply and removal of the engine locking-simultaneously with the second stage conducted inside the vehicle cabin. Locking of the door locks, locking of the engine and switching-off of the electric power supply are carried out simultaneously with setting on guard. The vehicle guard device has a central unit, immobilization unit, code reader, engine start contact set, sensors of guarded zones, unit for centralized locking and unlocking of doors, signaling unit. An additional code reader is introduced in it for activation of the guard duty and removal of the first guard stage, electric power supply control unit, unit for identification of the engine start and motion trial.

EFFECT: enhanced stability of vehicle to unauthorized actions due to provision of a multilevel protection.

4 cl, 6 dwg