基于ARM的嵌入式轮胎压力监测手持终端设计

Design of ARM-based Embedded Hand-held Terminal for Tire Pressure Monitoring

为解决传统轮胎压力监测系统用于商用车辆时轮胎定位繁琐的问题,设计一种轮胎压力监测手持终端设备。该设备以STM32F103为主控制器,主要模块包括数据显示、低频发送、射频接收电路单元。在此硬件基础上移植FreeRTOS操作系统实现多任务实时调度,开发出一套基于STemWin的人机交互界面,可方便地通过屏幕操作发送相应指令给传感器。实验结果表明,该设备能有效地同胎压传感模块双向通信实现轮胎位置灵活设置和数据获取,可在实际中得到应用。

In order to solve the problem of tire positioning in the conventional tire pressure monitoring system for commercial vehicles,a hand-held terminal was designed for tire pressure monitoring.The device used the STM32F103 as the main controller and mainly included data display,low frequency transmission,and radio frequency receiving circuit units.The FreeRTOS operating system was ported to the hardware to implement multi-task real-time scheduling,and the human-machine interaction interfaces based on STemWin were developed,which can conveniently send corresponding instructions to the sensors by screen operations.The results show that the device can be two-way communication with tire pressure sensing module to achieve tire positioning and data acquisition,so it can be applied in practice.