| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to transmit vehicle data, road information data or the like of a passing vehicle to specified reception equipment from a road side resonance circuit in a vehicle position recognition device adopting an electromagnetic induction connection system of the road side resonance circuit and a vehicle side resonance antenna. SOLUTION: This position recognition device is equipped with a lane marker 30 having a resonance circuit 31, a vehicle side resonance antenna 10 consisting of a resonance circuit the resonance frequency of which is the same as the resonance circuit 31, and a transmission/reception means 20 which includes an oscillation circuit 21 and a demodulation circuit 24. In this device, the vehicle side transmission/reception means 20 is provided with a carrier wave demodulation means 26 which demodulates a carrier wave by data set to the vehicle and transmits the vehicle data from the resonance antenna 10 and, the lane marker 30 is provided with a CPU 35 and weak radio equipment 36 to which the vehicle data received by the resonance circuit 31 are inputted. The vehicle data transmitted to the lane marker 30 by electromagnetic induction connection of the resonance antenna 10 and the resonance circuit 31 are transmitted to specified reception equipment by way of the CPU 35 and the weak radio equipment 36.
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