Vod System In Guiyang City, The Research And Application

Nowadays, there is a new growing technology called VOD in the computer science. It is such a technology that can offer the media programme according to demand of the users. The video-on-demand(VOD) function is the necessary part of the numeral television, it is full exertive the advantage of the numeral television, it developed the first river for the development of two-way interaction television. The realization of video-on-demand needs the support of the two-way cable TV. The VOD system is a very complicate system, it includes EPG,VOD server, BMS system, the basic terminal like set-top-boxes etc. at least. Each unit get data from one another, it needs international standard perhaps the profession standard agreement to complete the course of getting data from one another, just then, there will be the foundation of the mutual communication.Through a research, we will solve the following technique problems:1. Adopt the openning system structure to achieve the mutual communication.2. The balance of the overall load/key equipments redundancy.3. The coexistence of the variety medium saving format.4. Support the distribute type CDN.5. The support of the multi-EPG and the distribute EPG.6. The space expand of the follow-up propagate business and the ability of development.