对数字电视多媒体消息系统的接口协议的分析

Analysis of Interface Protocol for Digital TV Multimedia Message System

文章对数字电视多媒体消息系统的结构设计进行分析,该系统包括移动通信网络MMS系统、固定通信网络与互联网等,其体系架构由多个功能模块与相互间的接口构成.同时,重点探究了该系统中的接口协议与实现方法,使机顶盒之间的点对点信息传输成为现实,并促进机顶盒与手机、机顶盒与增值业务间的信息互通,利用SIP协议对用户代理进行设计,并列举几组具有代表性意义的抽象命令元素设定方法,力求推动数字电视的发展.

This paper analyzes the structure design of TV multimedia message system,a mobile communication network MMS system,a fixed communication network and the internet are included in the system.Its architecture is composed of multiple functional modules and their interfaces.At the same time,mainly explores the interface protocol and implementation method in this system,makes the point-to-point information transmission between set-top boxes become a reality,promotes the information exchange between settop boxes and mobile phones,set-top boxes and value-added services,and designs user agents using SIP protocols.Finally,several representative methods of setting abstract command elements are listed to promote the development of digital TV.