Abstract:

The research on the tire pressure monitoring system (TPMS) synchronous serial communication technology was carried out to meet the low power consumption design requirement of TPMS. The special frame of information, which contained the data signal with an implicit synchronization signal, was constructed with the
design scheme of TPMS hardware system and with the serial signal encoding method and decoding method of source. The results show that the wireless transmission efficiency of TPMS tire sensor transmitter is increased by 29.4% and the average power consumption is reduced by 2.62% compared with the universal asynchronous receiver/transmitter (UART) serial communication technology. The designed wireless synchronous serial communication technology is able to satisfy the demand of low power consumption design, and the wireless communication efficiency can be improved with low error rate. Therefore, it has good value of popularization and application.

Key words: automobile, tire pressure monitoring system (TPMS), synchronous serial communication, bit period, micro controller unit (MCU)