Tire-mounted sensor, diagnosis history memory device and diagnosis notification device

A tire-mounted sensor attachable to a back surface of a tire comprising:

• a vibration detection unit for outputting an output voltage corresponding to a magnitude of vibration of the tire as a detection signal;
• a pressure sensor for detecting a tire air pressure inside the tire;
• and
• a signal processing unit for detecting an application of impact shock to the tire based on a change in the tire air pressure and detecting a possibility of occurrence of abnormality of the tire by comparison of the output voltages of the vibration detection unit outputted before and after a detection of the application of impact shock.

A diagnosis history storage device comprising:

• a tire-mounted sensor attached to a back surface of a tire and including a vibration detection unit for outputting an output voltage corresponding to a magnitude of vibration of the tire as a detection signal, a signal processing unit for generating data of an output voltage waveform indicated by the detection signal of the vibration detection unit and a transmitter unit for transmitting data of the output voltage waveform;
• and
• a receiver and a vehicle side system, which are provided in a vehicle body side,
• wherein the receiver receives the data of the output voltage waveform, and
• the vehicle side system detects an application of impact shock to the tire based on a change in the output voltage waveform indicated by the data of the output voltage waveform, detects a possibility of occurrence of abnormality of the tire by comparison of the output voltages outputted before and after the detection of the application of impact shock and stores the possibility of abnormality of the tire as a diagnosis history.