【作者】 周云飞；

【导师】 王宏远；

【作者基本信息】 华中科技大学 ， 软件工程， 2004， 硕士

【摘要】 电子节目指南(EPG)是数字电视系统的重要组成部分,它是实现用户友好界面的最佳表现形式,也是数字电视增值业务的最直接体现。对EPG系统的研究对于数字电视前端系统的管理和新生业务的实现都具有十分重要的意义。本文主要介绍数字电视领域中电子节目指南系统的系统分析和架构设计,详细阐述了EPG系统中编辑端、播发端、监控服务以及数据库四个组成模块的设计思想和实现方法。并对关键模块设计中的核心技术和难点作了细致深入的分析。在EPG系统的设计中,关于PSI/SI信息的组织严格遵循欧洲DVB组织公布的DVB-C(DVB)标准,国家广播电视局也于2004年决定采用这套标准的修改版作为我国的数字电视有线网标准,因此本系统的开发符合国内数字电视发展的市场需求。本项目已经完成并已投入应用,经过大量横向测试比较,这套系统在功能的可扩展性、系统的稳定和易操作性上均大大优于国内其他产品,是一款成功的商用软件系统。今后几年将是数字电视飞速发展的几年,目前的数字电视业务远远满足不了日益增长的消费需求,新业务系统的开发将成为数字电视发展的推动性力量,EPG系统作为前端与终端之间的纽带地位是不可动摇的,因此对它的研究也将随着数字电视领域发展而不断取得阶段性进步和突破。更多还原

【Abstract】 Electronic Program Guidance is an important part of the digital television(DTV), it is the best form for the realization of kind user interface, and it also can reflect the increment operation of digital television directly. Then it has a great significance for the both administration of front end of DTV and realization of new service.This paper mainly introduces the system analysis and architecture design for the EPG system in the DTV field, and it particularly states the design plan and practical realization methods for the 4 modules: Edit-End, Broadcast-End, Monitor-End and Database. And it gives a deep analysis for the core technology and difficulty in the key modules.Since 2004,The State Administration Of Radio Film And Television decided to adopt the DVB-C of the Euro DVB organization as the national standard for the DTV of China, so this system keep a consistence with the market demand for the domestic DTV.This project has been finished for the practical using with a high level in the function expansibility, system stability and operation convenience. Comparatively, it leads a lot to all other existing system.It can be predicted that DTV will experience a fast boom in the future several years, and current DTV operation can poorly meet the increasing consumer demand. The R&D of new operation system will be critical for the DTV development, and EPG will stand firmly as the tie between the front-end and the terminals, so it will make a great achievement with the progress of DTV.更多还原