Transmitter, receiver, and transmission-reception system

A transmitter configured to be integrated with a tire valve attached to a wheel, the transmitter comprising:

• an acceleration sensor configured to detect a centrifugal acceleration that acts on the transmitter as the wheel rotates;
• a data generating unit configured to generate transmission data;
• a transmitting unit configured to transmit the transmission data to a receiver;
• a determining unit configured to determine a type of the wheel to which the transmitter is attached;
• a warning transmission controlling unit configured to cause the transmitting unit to perform warning transmission for causing the receiver to issue a warning when a detection value of the acceleration sensor exceeds a threshold;
• and
• a warning threshold setting unit configured to set the threshold in accordance with the type of the wheel determined by the determining unit.

A receiver configured to receive transmission data transmitted from a transmitter integrated with a tire valve attached to a wheel, the receiver comprising:

• a receiving unit configured to receive the transmission data;
• a receiver memory unit configured to store a correspondence relationship between a type of the wheel and a threshold related to control of a vehicle;
• an obtaining unit configured to obtain wheel identification information from the transmission data received by the receiving unit;
• and
• a setting unit configured to recognize, from the wheel identification information, the type of the wheel to which the tire valve is attached, and to set, from the correspondence relationship, the threshold in accordance with the recognized type of the wheel.

A transmission-reception system comprising:

• a transmitter configured to be integrated with a tire valve attached to a wheel;
• and
• a receiver configured to receive transmission data transmitted from the transmitter, wherein
• the transmitter includes
• a data generating unit configured to generate the transmission data,
• a transmitting unit configured to transmit the transmission data, and
• a controlling unit configured to cause the transmitting unit to transmit the transmission data, the transmission data including wheel identification information that indicates a type of the wheel to which the tire valve is attached, and
• the receiver includes
• a receiving unit configured to receive the transmission data,
• a receiver memory unit configured to store a correspondence relationship between the type of the wheel and a threshold related to control of a vehicle,
• an obtaining unit configured to obtain the wheel identification information from the transmission data received by the receiving unit, and
• a setting unit configured to recognize, from the wheel identification information, the type of the wheel to which the tire valve is attached, and to set, from the correspondence relationship, the threshold in accordance with the recognized type of the wheel.