METHOD TO CONTROL SYSTEM PROTECTIVE VEHICLE FROM UNAUTHORIZED USE Russian patent published in 2005 - IPC

FIELD: transport engineering; security systems.

SUBSTANCE: invention relates to radioelectronic protection of vehicles from unauthorized use. According to proposed method secret PIN-code is fixed in memory of protection system processor. Coded control radio signal to active system is fed by pressing corresponding pushbuttons on radio trinket. Receiver coded radio signal is identified in system processor. After identification, control signal is generated to active sensors of protection system, interlock functional units of vehicle and connect alarm. Under protection mode, presence of signals from protection system sensors is monitored. If sensors send signals on unauthorized action onto vehicle, alarm is switched on. Coded control radio signal to disconnect the protection is sent by pressing on corresponding pushbuttons. Received coded radio signal is identified in protection system processor. After identification, control signal is generated to disconnect sensors of state of protection system, alarm signaling and interlocking of vehicle functional units, except for engine interlocks. Then secret PIN-code signal is sent into system processor which compares said PIN-code with that fixed in processor memory and, if they coincide, engine interlock is disconnected. Secret PIN-code signal is sent to protection system processor in form of coded radio signal from radio trinket by pressing special pushbutton or combination of pushbuttons designed for remote control of protection system. Changing and fixing new secret PIN-code in processor memory, when necessary, is done by Owner by sending coded radio signals from radio trinket by pressing special PIN-code pushbutton or combination of pushbuttons on radio trinket designed for remote control of protection system.

EFFECT: improved comfort in vehicle operation.