高速公路ZigBee通讯主动安全系统研究与实现  

Research and Design of Active Safety System for Expressway Based on ZigBee

作　　者：康作宁 黄刘生[3,2] 徐宏力 王兴隆[3,2] 

机构地区：[1]中国科学技术大学软件学院,合肥230000 [2]中国科学技术大学苏州研究院,江苏苏州215123 [3]中国科学技术大学计算机科学与技术学院,合肥230000

出　　处：《小型微型计算机系统》2018年第1期116-121,共6页Journal of Chinese Computer Systems

基　　金：国家发改委物联网专项项目(2012-2766)资助

摘　　要：车联网是近年来研究的热点.在车联网的研究中,车辆通过众多传感器模块获取自身的行驶状态信息,并通过无线传输模块进行车辆之间的相互通讯.主要目标是搭建一个两车之间的信息便捷交互系统.系统通过两车之间的无线通讯功能解决在高速公路上由于恶劣天气环境造成的肉眼可见度低的问题,系统能够实时监控前后车之间的安全车距.在前车紧急制动情况下把预警信号通过无线模块发送给后车,降低后车驾驶员制动前的反应时间,从而减少连环相撞事故.本系统采用加速度模块和GPS模块收集车辆自身的信息,利用无线模块和语音模块实现预警功能.系统功耗低、体积小,能有效降低高速公路的连环相撞事故.在系统设计完成后,进行了通信距离、模拟行车环境和上车动态行驶测试.The Vehicle networking is a research focus in recent years. In the research of vehicle networking, a vehicle can get its owndriving state information through a number of sensor modules, and communicate with the other vehicles through wireless transmissionmodule. The primary objective of this paper is to design a convenient system for information exchange between the two vehicles. Thesystem solved a problem that due to harsh weather conditions caused by the naked eye low visibility through wireless communicationbetween the two vehicles, and can monitor, in real time, the safety vehicle distance between the front and rear vehicle. In the case of thefront vehicle emergency braking,the warning signal would be sent to the rear vehicle through the wireless module. The reaction time ofthe rear vehicle driver would be reduced, thereby reducing the serial collision accident~ Through the use of a acceleration sensor moduleand a GPS module, the system can collect its own driving state information. Using a wireless module and a voice warning module, itcan achieve the warning function. The characteristics of the system are power efficiency, small size and that it can effectively reducethe pileup,vehicle chain collision,on the expressway. After being designed system, we tested the communication distance, simulateddriving environment and tested the function in a dynamic vehicle.

关 键 词：主动安全 车联网 语音预警 ZIGBEE 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]