To provide a tire information transmitting method and a tire sensor device by which the tire information of respective sensors can be transmitted to the vehicle side by simple constitution and the tire information of respective sensors can be prevented from being leaked to the external.
A plurality of sensor modules 20 (20A-20D) each of which is provided with a sensor, a communication module including a communication function and a power supply regeneration circuit and an antenna and a base station 30 provided with an internal communication device for communicating with the sensor modules 20, an information processor for processing tire information signals from the sensor modules 20, an external communication device for communicating with a vehicle control device 40 arranged on the vehicle side and an internal battery are attached to a tire part. An intra-tire LAN is constituted of the sensor modules 20 and the base station 30, tire information signals transmitted from the sensor modules 20 are processed by the base station 30 and the processed signals are transmitted to the vehicle control device 40.
HANEDA HIROMASA
KOKUBU TAKAO
OKU MASAHARU