METHOD AND DEVICE FOR ACCESSING INFORMATION OF TRANSPONDER FOR TIRE

摘要

PROBLEM TO BE SOLVED: To immediately learn information on tires by transmitting/receiving radio waves with transmission/reception antennas provided in the tire pass area of a vehicle travel path and information-accessing to responders provided in the tires of the vehicle passing through the travel route. SOLUTION: The transmission/reception antennas 20-01 and 20-02 of an information access device 2 are provided in the tire pass area of the vehicle travel path. The transmission/reception antennas 20-1 and 20-2 are alternately used and transmit/receive the radio waves by switching the contact point of an antenna switch at prescribed time intervals by a CPU 231. The transponders in the tires installed on both sides of the vehicle are accessed. The information access device 2 reads various information which the transponders store with the access and transmits a write instruction when write information is previously set so as to store the write information in the storage parts of the transponders.