Video Surveillance System For Substation Security Based On Web

As China's power industry continues to develop, electricity networks have beenexpanding, the network increasing the complexity of the structure. As a hub of thegrid the substations play an important role in the power system, but becausesubstations scattered and remote location where the characteristics of the electricitynetwork management and security caused a lot of inconvenience. Therefore, the useof Web-based video surveillance system substation on the current substation toimprove day-to-day management, the progressive realization of the unmannedsubstation, thus improving the overall power grid management level is extremelyimportant.Firstly,this article is proposing the design proposal of transformer substationvideo frequency supervisory system based on the Web, this proposal takes realizingthe video image gathering broadcast, the video frequency network transmission,supervisory system's remote control, video image motion detection several functionsas the goal, adaptes the integrated trend that digitization, the network, integration ofsupervisory system.In the process of realizing video image capturing and the broadcasting , thisarticle proposed a new method to realize the COM connection programming based onDSPack and the Microsoft DirectShow development tool bag, it solved theshortcoming that used the COM connection purely to program numerous, promotedthe development efficiency; In the process of realizing the video frequency networktransmission, this article has used the ethernet and the ATM network transmissiontechnology, overcame the shortcoming that the early time supervisory systemtransmission speed is excessively slow, and also takes the band width excessively toohigh ; In the process of realizing the supervisory system remote control, this articleuses the ActiveX technology, realized the browsing and the operation of to the videofrequency supervisory system in the Web page finally, the method while guaranteedsystem's openness and the security; Finally, this article uses the background abatementtechnology to realize the video image motion detection, it discovers in the process ofrealizing that the initial algorithm anti-jamming was not strong, the warning wasfrequent, this article pointed out that the algorithm used in judging finally whethershould report to the police the threshold value took is when 0.1 could report to thepolice the accuracy to reach the most high energy to eliminate the majority of wrongwarning situation after careful researching the algorithm.The substation video frequency supervisory system based on Web on this articlemoves the period operational aspect to be good, the picture quality is clear, thewarning accuracy is high, meets the transformer substation current management workrequirement completely.