WiFi技术在智能车数据通信中的应用

智能车数据无线通信模块能够使人们准确地掌握智能车的单片机程序的运行状况,是智能车控制系统的调试的有力工具,本文介绍了一种基于WiFi的无线通信模块的设计,硬件方面分为单片机模块、WiFi模块及接口电路模块。软件方面包括单片机软件、上位机数据接收及上位机数据处理。单片机选用飞思卡尔公司的MC9S12XS128,接口电路主要为5V和3.3V的电平转换电路。单片机的串口模块通过UART_WiFi模块产品HLK_WiFi_M03将数据传到上位机,最终无线通信模块就能够将智能车数据(如路径信息、车速、舵机控制信息、车速控制信息等)发送至上位机,上位机对数据进行处理分析,实现对智能车的运行状态进行实时监控。并通过调整相应参数的指令,达到优化自主控制策略的目的。

Application of WiFi technology in data communication of intelligent vehicles

Wireless data transmission module for intelligent vehicle is help to master operating conditions of microcontroller in intelligent vehicle and is a powerful tool for debugging control system of intelligent vehicle. A wireless data transmission module based on WiFi technology is introduced in this paper. The system hardware is composed of microcontroller module, WiFi module and interface circuit modules. The software includes microcontroller program, PC soft for data receiving and processing .Freescale MC9S12XSI28 is used as microcontroller, and interface circuits mainly include converters transferring voltages between 3.3V and 5V. The serial port of microcontroller transmits the data to the PC through UART_WiFi module HLK_WiFi_M03. Finally, the wireless data transmission module sends the data of intelligent vehicle to PC （such as path information, vehicle speed, steering gear control information, e speed control information, etc.）. Then with the data analysis, PC realizes the real-time monitoring of running state of intelligent vehicle. And by adjusting the parameters, the goal of optimizing control strategy is achieved.