Wheel position identifying device, wheel position identifying system, and wheel position identifying method

A vehicle includes a front wheel assembly and a rear wheel assembly having different outer diameters. A wheel position identifying device includes a reception circuit and processing circuitry. The reception circuit is configured to receive a first transmission signal and a second transmission signal. The first transmission signal is transmitted from a transmitter attached to the front wheel assembly at a specific rotational position of the front wheel assembly. The second transmission signal is transmitted from a transmitter attached to the rear wheel assembly at a specific rotational position of the rear wheel assembly. The processing circuitry is configured to determine whether each of the transmitters is attached to the front wheel assembly or the rear wheel assembly based on a reception interval of the first transmission signal and a reception interval of the second transmission signal.