Research On Technologies Of Remote Monitoring System Based On Web

In recent years, the rapid development of network technology has made it possible for the development of remote monitoring and control. Remote monitoring is to monitor and control the control system through the network (especially through Internet). It has the function of state monitoring and fault diagnosis. While the remote control system based on web is using web as its communication platform. The research on this technology has far reaching impact on decreasing the production costs and raising the productivity for enterprises.The remote monitoring and control system based on web, as a typical distributed system, has very complicated structure and its implement is very difficult. At present, the common used WWW technology cannot solve all the problems about remote monitoring and fault diagnosis because of the intrinsic defect itself. CORBA is a new distributed object technology with the characteristics of having nothing to do with the languages and operation system. The combination of CORBA and Java can be mutually complemented. After making thorough analysis and all-rounded research on the traditional scheme and relevant technology, this article proposes an improved scheme of four-tier structure. In the new scheme the original server layer is divided into web server and CORBA server and JavaBean in JSP is used as CORBA client program to transfer CORBA server program. CORBA server communicates with database server directly. This structure relieves the burden of web server and database server and makes the whole system capable of expand and contact, being transplanted and being used repeatedly. What's more is that it promotes theefficiency of programming greatly.This paper incorporates an oilfield manufacturing process real-time monitoring system and the remote control & intelligence diagnosis center in our school of Automation, and use JSP, CORBA and JDBC to this remote monitoring system. This application acquires evident effect.