基于EPA网络协议仪表节点的设计

The Design of Intelligent Instrument Node based on EPA Protocol

随着计算机技术、微电子技术和通信技术的飞速发展,使得传统的控制系统(如DCS等)在结构上和性能上都发生了巨大的飞跃,逐步形成以网络集成自动化系统为基础的企业信息系统即现场总线系统。针对工业测量与控制系统网络通信特点,以以太网(和无线技术)、TCP/IP为基础的《用于工业测量与控制系统的EPA通信标准》被浙江大学等提出。在此研究中,一个能够通过EPA网桥就直接挂接在EPA网络上的智能测量节点被设计,在现有的开放的TCP/IP协议栈下EPA协议栈被实现。

With the development of computer science, the micro-electronics and telecommunication have a rapidly progress, and the traditional control structure transforms in the structure and properties. The field bus based on the ethereal network（EPA） is proposed by Zhejiang University for industrial measurement end control system, which uses the ethereal network end TCP/IP communication protocol. This research presents an inteligent measurement node which installs under the EPA network bridge and implement based on the open TCP/tP protocol stack.