ANTITHEFT 5D-SYSTEM Russian patent published in 2012 - IPC B60R25/00 

FIELD: transport.

SUBSTANCE: invention relates to hardware of automotive transport facilities, namely, to antitheft devices. Proposed system comprises electronic mark operated in 2D space frequency ranges, i.e. low-frequency (LF) and ultrahigh-frequency (UHF), LF and UHF transceivers, and power supply. Power supply outputs are connected to UHF transceiver and microprocessor supply circuits. It incorporates readout unit connected to ignition bus and electronic mark by induction coupling, indication and control unit with its first control input connected via threshold device to readout unit output and second control input connected with ignition bus. It includes also alarm signaling module, engine interlocking module and control module, each being communicated via wire or wireless channels with indication and control unit. Electronic mark represents 3D-mark with 3D-antenna, while LF-transceiver is made up of 3D-LF-transceiver. All 3D-antenna external contacts are connected with appropriate contacts of 3D-LF-transceiver. Control inputs and outputs of UHF- and 3D-LF-transceivers are connected to appropriate microprocessor inputs and outputs. 3D-mark 3D-antenna is made up of induction coils each accommodating ferrite core with two or six external contacts. Ferrite core lengthwise axes are located on mutually perpendicular planes to make orthogonal system. System efficiency does not depend on mutual orientation of antennas arranged in electronic mark and transport facility readout unit.

EFFECT: maximum sensitivity to electronic mark signals.

3 cl, 4 dwg