Of Webgis Applications In Electric Power Communication Network Monitoring System

WebGIS is a technique using Intemeofntranet platform and GeographyInformation System (GIS). In this paper, electric power communication networksupervision system built on Browser/Web Server/Database Server architecture uses anadvanced WebGIS component to integrate separate supervision units graphical1y. Withthis architectUre the expense of future maintenance and upgrade can be greatly reducedand user's application can also work independently from the environment of the client.This system including GIS and Web query was developed by Visual Basic 6.0,Visual InterDev and MBGISX component developed by Bejing MuBell Software Tech.Ltd. Sma1l but practica1 WebGIS component deals with real time information by theway of server notifying. This meets the need of real time and improves the system'sstability. Component technique realizes the encapsulation of application rule and thegenerality of visiting database, thus improves the system perfOrmance.In the way of realization, considering the practical need and the progress ofWebGIS technology, WebGIS is first implemented in electric power communicationsupervision system. The ActiveX component in client coordinates the WebGIScomponent. By programming in sever and way of notifying client by server, the load ofserver and network traffic are greatly reduced. TherefOre, the system real timeperfOrmance is guaranteed and its stability is improved.In this paper, the following questions are deeply discussed f how to make theapplication system based on WebGIS technology adapt to the features of Intemet andmeet the real time requirements as well, how to reduce network traffic, how to mitigatethe load of server by pagination, and how to decrease network delay, etc and finally thescheme has achieved the design purpose.