基于SVG与WebSocket的SCADA Web发布系统设计  

Design of SCADA Web publishing system based on SVG and WebSocket

作　　者：徐苏君 高翔 Xu Sujun;Gao Xiang(Guodian Nanjing Automation Co.,Ltd.,Nanjing,Jiangsu 210000,China)

机构地区：[1]国电南京自动化股份有限公司,江苏南京210000

出　　处：《计算机时代》2023年第11期116-119,123,共5页Computer Era

摘　　要：设计了一套基于SVG与WebSocket的SCADA Web发布系统,使得企业管理人员可方便快捷的通过浏览器监视生产运行状况。为了保证画面的流畅性和实时性,本设计提出了SVG动态图元解析预处理机制和基于WebSocket的数据实时刷新机制,前者通过SVG图元预处理以解决在SVG图形访问数量较多且动态图元计算量大的情况下的性能问题;后者通过WebSocket通讯技术避免浏览器不断向服务器发起轮询操作,减轻服务器负载压力,有效提升系统的稳定性和实时性。A set of SCADA Web publishing system based on SVG and WebSocket is designed,which enables enterprise managers to monitor the production operation conveniently and quickly in a browser.To ensure the smoothness and real-time performance of the graphics,an SVG dynamic element parsing pre-processing mechanism and a data real-time refresh mechanism based on WebSocket are proposed.The former preprocesses SVG graphics to solve the performance problem in the case of a large number of SVG graphics accesses and a large amount of dynamic graphics computation,and the latter uses WebSocket communication technology to avoid the browser from constantly polling the server and reduce the load pressure on the server.It effectively improves the stability and real-time performance of the system.

关 键 词：SCADA系统 SVG动态图元解析 实时刷新 WebSocket通讯 Web发布系统 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]