城市车路协同系统的通信及定位技术研究  

Research on communication of city cooperative vehicle infrastructure system and its’ positioning technology

作　　者：彭登[1] 徐建闽[2] 林培群[2] 

机构地区：[1]华南理工大学自动化科学与工程学院,广东广州510641 [2]华南理工大学土木与交通学院,广东广州510641

出　　处：《计算机工程与设计》2011年第3期859-862,共4页Computer Engineering and Design

基　　金：国家自然科学基金项目(50878088)

摘　　要：为了改善道路安全和提高交通效率,提出一种实现车-车、车-路之间无线通信和车路智能协同控制的方法。结合车路协同系统(cooperative vehicle infrastructure system,CVIS)的研究方法,介绍了基于无线传感器网络(wireless sensor network,WSN)技术的车路协同系统和车辆定位装置的整体设计,包括基于ARM920T(advanced RISC machines)内核的嵌入式车载终端和路测终端的设计,全球定位系统(global positioning system,GPS)接收机的设计,以及设计一个中值滤波器和卡尔曼滤波器的组合来提高GPS接收机的精度。实验结果表明,优化后的GPS接收机定位位置误差明显减少,具有很高的精度和运行效率。To improve road safety and traffic efficiency,a method is presented,which is used to realize intelligent cooperative vehicle infrastructure control and wireless communication between vehicle and vehicle,vehicle and road.CVIS（cooperative vehicle infrastructure system） research methods are combined.The overall design of CVIS based on WSN（wireless sensor network） technology and vehicle positioning device are introduced.Including the design of an embedded vehicle terminal and an embedded field test terminal based on ARM920T（Advanced RISC Machines）,the designs of GPS（global positioning system） receiver as well as a combination of a median filter and Kalman filter to improve the accuracy of GPS receivers.The experimental results show that the position error of optimized GPS positioning receiver significantly reduced,and the system has high accuracy and operating efficiency.

关 键 词：车路协同系统 ITS ZIGBEE ARM 全球定位系统 无线传感器网络 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] TP313.52[自动化与计算机技术—计算机科学与技术]