Design of low power operational TPMS system

Globally, safety technology of smart cars is developing for drivers´ safety. Because the eye inspection of tire pressure is difficult, automatic sensing of the tire pressure is very important. Tire pressure monitoring system measures tires´ pressure and temperature. By using TPMS system we can reduce pollution emissions, fuel consumption and car accident. U.S.A NHTSA made a law to use TPMS on cars. In this paper, two short frames are designed with unidirectional communication, which use minimum number of bits for low power operation. And the software of TPMS sensor module is designed such that the sensor mostly resides in deep sleep mode.