VEHICLE TIRE IDENTIFICATION SYSTEM

摘要

Electronic transponders (20) embedded within or on vehicle tires (40) are electromagnetically actuated by signals from an interrrogator coil (14). The transponder includes a receiver/transmitter coil (26) of one or more loops of wire (54) strategically placed along the sidewall or in proximity to the tread face of the tire. The transponder responds to actuation by producing a shifted frequency modulated with synchronization pulses and unique device identifying digital information. The transponder data stream can also include information on the condition and environment of the tire. By appropriate placement of the tire transponder coils and the interrogator coils, dynamic reading of the tire data is possible even with the vehicle in motion.