Power Information Network Video System Design And Realization

Power information network video system of power supplying company of Liaoning province is differing from traditional video meeting systems basing on protocol H. 323, It is a network application building on the network systems in existence. So, the stabilization network circumstance is foundation of power information network video system running in gear.The appearance of video meeting system is benefiting from two aspects of more powerful processing ability of client computer and network technology advancing rapidly.There is greater difference between video meeting system and the auld system basing of video stream following protocal H.320. Protocal H.323 is a series of criterion covering all aspects of voice, video and data sharing, etc. we nominate protocal ITU-TH.323 "Packet-based multimedia communication systems", it function is providing multimedia communication services on IP network.The establishment of video meeting system can carry out by ITU-T's protocal H. 320 and H. 323 ITU-T at present from developing history, so there are two corresponding establishing solution. H. 320 is the early TV meeting criterion, which is established wholly at the series of private technology and criterion of TV meeting, whereas H. 323 is established at the communing, opening communication of computer network, therefore H. 323 is of broadly developing foreground. The technology and market of TV meeting occurs revolutionary changing from 1996, at which year ITU-T criterion is passing. More and more factories devote to the new products developing of H. 323, more and more customers establish their own meeting TV systems adopting H. 323 technology and products. This is a resulting trend following the flying development and increasingly integrating of technology of communication network, computer and multimedia.More ever, H. 323 reveals increasingly obviously advantage than H. 320 in the aspects of advanced techniques, perfect function, convenient operation, system expansion, ratio of performance and price, etc.Therefore, the paper designs and narrates the solution basing on H. 323 to the establishment of meeting TV system.