To provide a tire pneumatic pressure monitoring system having a tire pneumatic pressure sensor easily installed to the existing tire and a receiver displaying pneumatic pressure information from the sensor, and immediately detecting a pressure reduction state when the tire pneumatic pressure is reduced to be predetermined pressure or less to surely make a driver concentrating on driving recognize the pressure reduction state.
The tire pneumatic pressure monitoring system has a tire valve mounting part 11 detachable to a screw part of the tire valve, a pneumatic sensor part 12, a control circuit part 13, a battery housing part 14, and a transmission part 15. The control circuit part has: a setting function presetting predetermined pneumatic pressure and predetermined battery voltage; and a comparing function comparing these set values with the detected pneumatic pressure or the detected battery voltage to detect each deviation. In the pneumatic pressure monitoring system, when it is detected that the pneumatic pressure value is lower than the preset predetermined pneumatic pressure, or when it is detected that the battery voltage is lower than the preset battery voltage, the transmission part transmits a predetermined signal.
GH MEISER & CO
VARIFORM INDUSTRY LTD
INTEK TECHNOLOGY CO LTD
Shinichi Nakajima