采用低频配置的新型胎压监测系统设计

在分析胎压监测系统工作原理的基础上阐述了手动配置轮胎压力传感器的不足，表现为气压降低、反复充气、效率低等方面。采用高、低频通信技术，设计实现了一种新的直接式胎压监测系统。该系统采用胎压专用传感器SP37和双模无线接收器MC33596分别完成轮胎内部信息的检测、发送和接收，通过低频触发实现各轮胎传感器ID的一键自动配置，软件上采用动态随机延时算法和节能策略，降低了多个传感器发生连续数据冲突的概率，延长了系统使用寿命。实际测试表明，该系统安装配置操作方便，跑车接收成功率可达到90％以上，具有很好的市场应用前景。

DESIGN OF A NEW TIRE PRESSURE MONITORING SYSTEM CONFIGURED BY LOW-FREQUENCY TECHNOLOGY

According to the working principle of tire pressure monitoring system, the lack of manual configuration is elaborated for tire pressure reduced, repeatedly inflated, low efficiency, etc. A kind of new direct tire pressure monitoring system is designed and implemented by using hish and low frequency communication technology. In the system, the internal information of tires is detected, transmitted and received by dedicated sensor SP37 and wireless receiver MC33596. The tire sensor ID is automatically configured by low-frequency trigger. In the software design, the dynamic delay algorithm and the energy saving policy not only reduce the probability of continuous data conflict among sensors, but also extend the system life. The actual test result shows that the system can be installed and configured conveniently with high reception success rate up to more than 90% and good market prospects.