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汽车安全与节能学报

JASE ›› 2018, Vol. 9 ›› Issue (4): 427-432.DOI: 10.3969/j.issn.1674-8484.2018.04.009

• 汽车节能与环保 • 上一篇    下一篇

基于同步串行通信的汽车TPMS 低功耗设计

欧伟明，凌 云*，李圣清   

  1. （湖南工业大学，株洲 412007，中国）
  • 收稿日期:2018-08-01 出版日期:2018-12-31 发布日期:2019-01-02
  • 通讯作者: 凌云，教授。E-mail: 896800286@qq.com。
  • 作者简介:第一作者 / First author ： 欧伟明 (1962—），男( 汉)，湖南，教授。E-mail: 939752980@qq.com。
  • 基金资助:

    湖南省自然科学基金项目（2017JJ4024）。

Low power consumption design of automobile TPMS based on synchronous serial communication

OU Weiming, LING Yun*, LI Shongqing   

  1. (Hunan University of Technology, Zhuzhou 412007, China)
  • Received:2018-08-01 Online:2018-12-31 Published:2019-01-02

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摘要：

       为了满足轮胎压力监测系统（TPMS）的低功耗设计要求，开展了对TPMS 同步串行通信技术的研究。提出了TPMS 硬件系统设计方案，给出了信源串行编码方法和解码方法，从而构造了一种特殊的信息帧，所述信息帧的数据波形中隐含了同步信号。结果表明：与异步接收机/ 发射机 (UART) 串行通信技术相比较，TPMS 轮胎传感发射器的无线传输效率提高29.4%，平均功耗降低2.62%。因而，本设计无线通信效率高，并且误码率低，能够满足所述的低功耗设计要求，具有推广应用价值。

关键词: 汽车, 轮胎气压监测系统（TPMS）, 同步串行通信, 位元周期, 微控制器(MCU) 

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)