题名支持流媒体的家庭多媒体网关关键技术的研究与系统实现
作者胡建良
学位类别博士
答辩日期2004
授予单位中国科学院声学研究所
授予地点中国科学院声学研究所
关键词家庭多媒体网关 流媒体 嵌入式浏览器 服务器 实时系统
中文摘要下一代网络(NGN,Next Geoeration Network)是一个建立在IP技术基础上的新型网络,能够容纳各种形式的信息,在统一的管理平台下,实现音频、视频、数据信号的传输和管理,提供各种宽带应用和传统电信业务,是一个真正实现宽带窄带一体化、有线无线一体化、有源无源一体化、传输接入一体化的综合业务网络。Internet依然是下一代网络的主体,IP技术是实现计算机互联网、传统的电话网和有线电视网三网融合的关键技术。随着Internet技术的发展,最终将实现计算机互联网、电话网(PSTN)和有线电视网三网融合。鉴于此,中利院声学)沂DSP中心承接了国家863计划一宽带信息、网运营支撑环境的家庭多媒体智能网关的研制,提出了一种应用于宽带网络中的多媒体数字终端方案,为未来的3Tnet网络提供:(l)用户或网络接入功能;(2)接入核心媒体网络功能;(3)媒体流的映射功能;(4)受控操作与网络管理功能。该终端支持多种功能,如网页浏览,VOIP、Firewoll、VPN、IPV4/6双协议栈、NAT、节目存储、流媒体播放,MPEGI/2/4播放,以及网络路由等家庭网关所应该具备的功能。作为这个终端开发者的一员,我参加研发工作已有三年,主要完成了在嵌入式操作系统下家庭多媒体智能网关系统软件和网络协议栈的设计与开发,包括嵌入式网络浏览器的技术研究、流媒体服务器的设计与实现、WEB服务器等软件的设计与开发。在工作期间,我发表了一篇文章,论文题目是《一种基于B/S结构的嵌入式VOD系统的设计与实现》,发表于中文核心期刊《电视技术》上。论文的主要内容组织如下:首先,在分析了宽带网络、下一代网络技术浏GN)、3Tnet网络应用需求后,介绍了多媒体网关的硬件、开发环境、软件体系的实现;然后,介绍了在嵌入式网络浏览器上所做的移植工作,阐述了流媒体服务器和WEB服务器软件设计与实现;最后是工作总结并提出了进一步完善的设想。
英文摘要Next Generation Network is a new kind of network over IP which can hold all kinds of information. In the uniform plat, NGN implements the transmission and management of digital signals, video and audio, and also NGN supports broadband application and traditional telecom operation .NGN is a integrative plat for wire and wireless, broadband and narrowband, transmission and accessing. Internet is surely the body of next generation network, and IP technology will be still the key technology that would realize the amalgamation of computer network, community antenna television and the traditional telecom. According to this, DSP Research Center Chinese Academy of Sciences carries on the 863 project of development of broadband accessing and integration, and we bring forward the scheme of the Broadband Multimedia Intelligent Gateway for broadband network, which offers three functions for the 3 Tbps network:(l) user or network accessing (2) accessing the core media network (3) mapping the media stream (4) access control list and network managing .This BMG terminal supports a lot of functions, such as web browser, stream media player, VOIPs FirewalK VPN> IPV4/6> NAT\ATM, router that family gateway must be provided with. As a developer of the BMG terminal, I was responsible for the designing, developing and testing of BMG software on embedded system, and I also take charge of the porting the network browser and developing the web server software. In my working period, I publish a paper with the name of A Design and Implementation for Embedded VOD System Based on B/S Architecture in the journal Television Technology in 2003 . This article is organized by me, First I introduce knowledge about the NGN, broadband network and 3Tnet network, then I introduce the hardware architecture and the software architecture of the broadband multimedia intelligent gateway and then I introduce my porting work about the network browser. In the last I give out the design and implementation of web server and stream media server, and finally come out my some suppose about my work that I was engaged in.
语种中文
公开日期2011-05-07
页码97
内容类型学位论文
源URL[http://159.226.59.140/handle/311008/860]  
专题声学研究所_声学所博硕士学位论文_1981-2009博硕士学位论文
推荐引用方式
GB/T 7714
胡建良. 支持流媒体的家庭多媒体网关关键技术的研究与系统实现[D]. 中国科学院声学研究所. 中国科学院声学研究所. 2004.
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