Research and Implementation on HD and Interactive Display System Based on Digital TV
|School||Changsha University of Science and Technology|
|Course||Communication and Information System|
|Keywords||digital television set-top box digital TV broadcasting interactive services|
With the integration of telecommunications networks,cable TV networks and the internet will work up and the rapid development of digital television technology,the digital TV will replace of the analog TV.The digital TV brings users a new experience,people can choose their favourite channels and interact with it,rather than passivly recept.This paper first introduces the the development situation of the related technologies in the digital TV fields and analyses some deficiencies of the development of the digital TV at present.This paper then detailed introduces the theory such as the software and hardware structure of stb,digital TV broadcasting system,interactive services.This paper puts forward high digital viedo and interactive display system based on the digital TV.The display system consists of digital TV broadcasting system, interactive services system and desktop systems.This paper discusses the structure of digital broadcast system and puts forward the solution based on using the DTA-111 as the streaming modulation and broadcast equipment. The interactive services system comprises the server deployment, middleware technology research and the development of typical interactive services etc, providing a set of interactive services solutions.Desktop system for display system provides friendly interface and rapid access to the system modules.The display system in this paper incorporates the key technology of digital TV and provides a good development environment for developers. It will bring convenients for digital TV technology developers in fast understanding and have a positive effect in improving the digital TV technology. This work has already been put into use in the related application developments in the digital family industry base of Guangzhou Higher Education Mega Center.