基于STM32的电动挖掘机信号无线传输系统①.PDF

计 算 机 系 统 应 用 2017 年 第 26 卷 第 4 期 ① 基于 STM32 的电动挖掘机信号无线传输系统 王鸿雁, 孟祥印, 赵 阳 (西南交通大学 机械工程学院, 成都 610031) 摘 要: 为解决电动挖掘机驾驶室与其电源车之间有线信号传输的干扰和使用不便问题, 提供了一种信号对传 的无线解决方案. 以STM32 微控制器为核心, 利用 Modbus 协议采集电源车变频器数据, 获取电动挖掘机的用电 状态和使用数据, 然后应用 ZigBee 无线双向通信协议传送给驾驶室的 STM32 微控制板以显示, 同时接收驾驶室 的开机、调速等指令, 指挥电源车变频器的工作. 实验结果表明, 电动挖掘机的工作状态采集, 以及数据的无线 双向传输均运行稳定可靠, 成功实现各项功能, 具有广泛的应用前景. 关键词: 电动挖掘机; 无线双向通信; STM32; ZigBee; Modbus Wireless Signal Transmission System of Electric Excavator Based on STM32 WANG Hong-Yan, MENG Xiang-Yin, ZHAO Yang (School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China) Abstract: In order to solve the problem of interference and inconvenience due to the use of wired signal transmission between the driving cab and the power supply car of the electrical excavator, the wireless signal transmission solution is proposed. With STM32 microcontroller as the core, use Modbus protocol to collect data of power supply car, and obtain the electric state and data of the electric excavator. ZigBee communication protocol is applied to transmit the data to the STM32 micro control panel in the cab for display, at the same time to receive the speed and other instructions of the cab to command the inverter of power car. Experimental results show that the working states acquisition and the wireless bidirectional data transmission is stable and reliable, and the various functions are realized successfully. It can be prospected that such a wireless bidirectional data transmission solution will be used in a wide range of applications. Key words: electric excavator; wireless two-way communication; STM