摘要
针对道路交通控制系统中对大量数据的实时传输需求,提出了一种基于UDP(用户数据报协议)的以太网通信的实现方案,采用DSP芯片TMS320F2812作为微处理器,通过连接以太网控制器CS8900A来实现系统与以太网的接口功能。主要介绍了系统的硬件和软件设计,阐述了采用UDP协议在实时通信中的优势,并通过实验实现了相应的数据实时传输功能。结合相关道路交通理论,对道路现场进行了模拟,设计了相应的交通应用数据,并通过上位机界面实现了对交通状态的远程监控。实验结果证明该方案完全适用于该系统对于实时通信的需求。
Ethernet communication based on UDP（user datagram protocol） is presented for the real-time trans- mission demand of a mount of data in road traffic control system. Microprocessor TMS320F2812 is used to connect the Ethernet controller CS8900A to realize the interface function. In this paper, the system design of hardware and software is introduced, the advantage of UDP in the real-time communication is expounded, and the function of data real-time transmission is realized by experiments. Based on theory of road traffic, the scene of road is simulated, the data of traffic is designed, and the traffic state is monitored with the upper computer. The experiment results validate that the proposed method can satisfy the real-time requirements of data transmission.
出处
《电子测量与仪器学报》
CSCD
2009年第3期39-44,共6页
Journal of Electronic Measurement and Instrumentation
基金
国家自然科学基金(编号:60874079)资助项目
国家863计划(编号:2006AA11Z231)资助项目
教育部重点项目(编号108127)资助项目
轨道交通控制与安全国家重点实验室开放课题(编号:SKL2007K011)资助项目
