基于互联网的远程监控系统

针对OPC COM技术只限于局域网内监控，为了面向基于互联网的远程监控，基于Web服务技术的OPC XML—DA规范，集成了OPC COM技术，针对Internet的跨平台的应用而开发，实现了从生产现场的监控系统到企业管理系统的系统集成，再到跨平台的远程监控。该文的创新点是将OPC XML—DA服务器集成到Web服务器中而且应用了J2EE Web服务器模式，Web服务器向远程用户提供Web服务，同时通过它的OPCDA接口与现场设备进行数据交换；远程监控客户无需安装配置特定的控制软件，只要通过Web浏览器就可以实现对现场设备的监控。

The research of remote monitoring system based on Internet

At present,OPC COM technology is limited to lan area,to satisfy the application based on Internet crossing different platforms, This article has researched the realization of integration from control system in plant to enterprise information management system, and implementation of remote monitoring system based on the OPC XML - DA specification of Web service technology, integrated OPC COM technology. The creativity is that Web server is designed based on the model of J2EE Web server, integrated the function of OPC XML - DA server, Web server supply Web service to remote users and change data with the local devices through OPC DA interface; the other is that the remote monitoring clients can watch and control the local device status through the Web explorer, rather than the special control software.