Provincial Cable Digital Television System Research

Today, the world has entered the high-speed developinginformation age, the traditional cable television network hasbeen unable to meet the people's daily request. At present, baseon current industry situation, the government has establisheda comprehensive implementation of three nets fusion strategy.General idea is using existing cable television network as thebasis, through the digital transformation, carry outvideo-audio, data and voice communications three networksintegration. Digital television is one core business of them.Cable television network operation mode by pure commonwealservice changed into the government public service andmarketing operation model simultaneously. In this article,according to the idea of national development of digitaltelevision to provincial level for the study, the specificnumber of proposed provincial network of design ideas, and oneof the core system for the "conditional access system" and "usermanagement system" in-depth research.The main contents of this article:1. Introducing provincial cable digital television systemarchitecture, components, and the function of each systemprofile;2. Mainly questions to "conditional access system" ofsubscriber's authorization, encryption and so on, proposedmethod of the multi-level construction design, completed thedesign for multi-level conditional access system construction,solved the problem for subscriber's authorization andencryption problem; 3. The core questions for high efficency, stability anduser availability of "Subscriber Management System,", carriedon deep research, proceed from the demand analysis of system,design development, adopt the advanced database developmentmodel, through rational develop for database, solved keyproblems of "Subscriber Management System ".