Wheel position detecting device that verifies accuracy of detection using trigger signal reception strength and tire air pressure detecting device including the same

摘要

A wheel position detecting device and a tire air pressure detecting device including the wheel position detecting device are provided. The wheel position detecting device judges whether reception strength data is correct or incorrect based on whether reception strength indicated by the reception strength data (the reception strength data expresses the reception strength of a signal transmitted from a receiver, provided in a vehicle body, to a transmitter at the transmitter) transmitted from each transmitter is within a range set in advance. Each transmitter is provided on each wheel. The wheel position detecting device judges whether to decide the wheel position using the reception data.