基于Web技术的EMS/DMS图形和数据访问  

EMS/DMS GRAPHICS AND DATABASE ACCESSING BASED ON WEB TECHNIQUE

作　　者：张洁[1] 

机构地区：[1]电力自动化研究院系统研究所,南京210003

出　　处：《电力系统自动化》1999年第15期45-47,共3页Automation of Electric Power Systems

摘　　要：现有不同计算机平台系统之间的图形和数据访问比较复杂，目前国内外都在研究将Ｗｅｂ技术应用于ＥＭＳ／ＤＭＳ的图形访问，通常采用的是ＣＧＩ方法和ａｐｐｌｅｔ绘图法。文中提出了服务／ａｐｐｌｅｔ方法，该方法利用ＥＭＳ／ＤＭＳ的现有图形系统，编制一个Ｗｅｂ服务软件，将浏览器的画面请求转变成绘图命令，再编制一个解释绘图命令的简单的ａｐｐｌｅｔ，在客户端完成绘图。it is difficult to access EMS/DMS graphics and database from the platform different from EMS/DMS. At present. some methods for accessing EMS/DMS graphics based on Web technique, such as CGI method and applet method are proposed. but there are defects for the complex EMS/DMS graphics. This paper proposes the server/applet method. First. a Web server program in the EMS/DMS system is developed. which receives display request. processes real time data, sends graphic commands like lines or rectangles to applet. Second, an applet is developed. which draws graphics on the client screen according to the graphic command.

关 键 词：WEB EMS DMS 图形系统 数据访问 电网 

分 类 号：TM734[电气工程—电力系统及自动化] TP393[自动化与计算机技术—计算机应用技术]