SYSTEM AND METHOD FOR SPECIFYING ROAD FACILITIES

摘要

PROBLEM TO BE SOLVED: To automatically specify road facilities passed through by the vehicle during the traveling of the vehicle. SOLUTION: An identification means 12 for storing coded prescribed information for specifying the road facilities in a memory 24 is provided in the respective road facilities. The vehicle is provided with a read means 18. When the vehicle approaches the specified road facilities, the reception antenna 18 of the identification means receives specified radio waves from the transmission antenna 34 of the read means and a modulation circuit 28 modulates the received radio waves by the contents of the memory and transmits them from the transmission antenna 28. In the read means, a reception circuit 36 receives the modulated radio waves by the reception antenna 38 and obtains the specified information on the road facilities. The specified information is recorded and displayed along with time information, distance information and road surface information, etc.