唐山有线数字电视平台的组成及应用

摘要

以唐山有线数字电视网络体系结构设计为例，从数字电视前端播控平台、市区传输网络、机顶盒接收三方面入手，阐述了数字电视系统的传输工作流程以及部分网络设备的工作原理。%Taking Tangshan digital cable television network architecture as an example, from the front of the digital TV broadcast control platform, the urban transport network, set-top boxes to receive three-pronged ap- proach, this paper elaborates the working principle of the transmission of digital TV system workflow and net- work equipment. Thus, the basic network of digital television systems cognitive, and lay a good foundation for the next step of promoting the triple play.