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|1. (WO2018199262) TIRE-SIDE DEVICE AND TIRE DEVICE INCLUDING SAME|
|Title:||TIRE-SIDE DEVICE AND TIRE DEVICE INCLUDING SAME|
In the present invention, a change in road surface condition is determined by a control unit (11) of a tire-side device (1) on the basis of a current feature quantity and past feature quantities. In addition, road surface data including the current feature quantity is transmitted from the tire-side device (1) at the time of the change in road surface condition. Consequently, the frequency of communications can be reduced, thereby enabling a reduction in the power consumption of the control unit (11), which is inside a tire (3). Since the control unit (11) of the tire-side device (1) does not need to be equipped with a support vector storage part for storing support vectors, memory of the control unit (11) in the tire (3) can be saved.