RADIO-CHANNEL SECURITY-ANTITHEFT SYSTEM Russian patent published in 2007 - IPC B60R25/00 

FIELD: transport engineering.

SUBSTANCE: invention relates to methods of protection of vehicles from unauthorized use. In proposed security system central supply unit is connected to supply bus made for transmitting coded frequency-modulated high-frequency signals. First input of central control unit is connected to supply bus through switch. Input and output of User identification unit are connected, respectively, to output and to second input of central control unit. Each electronic unit of security-antitheft system is coupled with one or several functional members of vehicle and it contains interface providing communication of electronic unit of system with central control unit through supply bus. System includes also central radio module and independent electronic modules of system. Each independent electronic module of security antitheft system includes self-contained supply unit and independent radio module connected by radio with central radio module for carrying out dynamic identification dialogue with use of coded signal messages with numbers changing randomly from message to message. Independent radio module is connected by input and output to one or several unauthorized action sensors and functional members of vehicle. Self-contained supply unit is connected with supply circuits of independent radio module. Central control unit has additionally input and output connected, accordingly, to output and input of central radio module. Independent electronic modules of security antitheft system installed additionally on vehicle do not require supply wires, they interact with central control unit by means of radio channels reliably protected from "electronic breaking".

EFFECT: improved concealing of mounting and protection from "electronic breaking".

10 cl, 9 dwg