基于ARM的多桥驱动汽车无源胎压监测系统设计

Design of passive tire pressure monitoring system for multi-axle drive vehicle based on ARM

由于间接系统不能同时兼顾车速与胎压的监测,导致监测精度不高,为此提出并设计了一种基于ARM的多桥驱动汽车无源胎压监测系统。系统硬件采用ARM作为STM32F4核心处理器内核,选择低功率的无线接收芯片作为接收胎压数据的载体,传感器内部引入电阻和导体,同时增加低频唤醒天线,以实时采集胎压及胎温数据;系统软件为核心设计部分,利用ARM传感功能,获取异常胎压数据,并建立ARM监测算法模型,执行监测逻辑,实现汽车无源胎压的监测与自动报警。实验结果表明,采用ARM系统进行多桥驱动汽车的无源胎压监测时,其监测精度比间接系统的精度高26.7%,具有较高的有效性。

Because the indirect system can not simultaneously monitor the vehicle speed and tire pressure,the monitoring accuracy is not high.To this end,an ARM-based passive tire pressure monitoring system for multi-axle drive vehicle is proposed and designed.ARM is adopted as the core of the STM32 F4 core processor for the hardware syster,low-power wireless receiving chip is selected as the carrier to receive tire pressure data,resistance and conductor are introduced into the sensor,and at the same time,low-frequency wake-up antenna is added to collect tire pressure and tire temperature data in real time.The software of the system is the core design part,ARM sensing function is used to obtain abnormal tire pressure data,and the ARM monitoring algorithm model is established to implement the monitoring logic and realize the monitoring and automatic alarm of automobile passive tire pressure.The experimental results show that the precision of the passive tire pressure monitoring system based on ARM system is 26.7% higher than that of the indirect system,and it has high effectiveness.