| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tire state detection device suitably obtaining useful information regarding a tire state. Ž<P>SOLUTION: This tire state detection device 1 is provided with: a tire pressure detection means 4a for detecting a tire pressure P of a tire; a transmitting means 5a for transmitting a radio wave including data of the detected tire pressure P; a receiving means 9a for receiving the radio wave transmitted by the transmitting means 5a; a measuring means 10a for measuring receiving intensity E of the radio wave received by the receiving means 9a; a distance calculating means 10b for calculating the minimum separation distance Lmin and the maximum separation distance Lmax of the transmitting means 5a with respect to the receiving means 9a from the maximum value Emax and the minimum value Emin of the receiving intensity E generated in accordance with rotation of the tire; and a turning angle calculating means 10c for calculating a turning angle θ of the tire, based on the minimum separation distance Lmin and the maximum separation distance Lmax. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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