RADIO-DETECTION SYSTEM FOR FINDING AND FOLLOWING VEHICLES Russian patent published in 2005 - IPC

FIELD: alarm signaling for vehicles.

SUBSTANCE: system has relay network, consisting of N distributed relay assemblies, which are made with possible connection along phone network and/or standard cell mobile communication system, like GSM-network, with information processing center. Onboard the vehicle client sets are mounted, each of which has alarm signaling station, made with possible data transfer along standard cell phone network, and also autonomous navigation block, made with possible receipt and processing of signals of global satellite navigation system, for example GPS, and connected by output to input of alarm signaling station. Each of client sets has hopping signals transmitter, control input of which is connected to output of alarm signaling station, and each of N relay assemblies is made in form of bearing relay station of hopping signal, containing two receivers with common heterodyne and distanced identical antennae, two digital filters, two computers, synchronization computer, transmitting radio module and modem. information output of synchronization computer through modem is connected to phone network, and through transmitting radio module - to standard cell phone network.

EFFECT: possible detection and reliable following of jacked vehicle with sufficiently small amounts of emission from onboard the vehicle; workability of system is maintained under condition of intentional interference with GPS-receiver and channels of standard mobile communication systems.

3 cl, 5 dwg