| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wheel position specification device capable of easily specifying a longitudinal position of a wheel side unit by using acceleration.SOLUTION: A wheel side units 3 make an RF transmission circuit transmit an RF signal when acceleration of gravity which is detected when a wheel 2 travels on an obstacle exceeds a preset threshold value. A receiver unit controller 33 of a receiver unit 4 specifies a position of the wheel side unit 3 which transmitted the RF signal earlier as a front side position and specifies a position of the wheel side unit 3 which transmitted the RF signal later as a rear side position if it receives the RF signals twice with an interval.</p> |
