| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire status monitoring system capable of suppressing consumption power at outputting of information of a tire side transmitter as a conventional one. SOLUTION: In the tire status monitoring system 10, since the tire side transmitter 20 puts detection information on an electromagnetic wave and the electromagnetic wave is made to a surface wave of a tire wheel 12 and a vehicle body 15 and is outputted, consumption power at outputting of the detection information can be suppressed as compared with the conventional one. Thereby, large size of a button cell 30 built-in in the tire side transmitter 20 is suppressed and long life is accomplished. Specifically, although consumption power at outputting of information is 3 [dBm] (2[mW]) in the conventional constitution, in the present tire status monitoring system 10, it can be made to -10 [dBm] (0.1[mW]) and the consumption power at outputting of information can be made to 1/20 of the conventional one. COPYRIGHT: (C)2007,JPO&INPIT
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