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  本文選題：NGOD2.0　切入點：VOD視頻點播　出處：《電子科技大學(xué)》2014年碩士論文

【摘要】：在數(shù)字電視整體平移進(jìn)程中,交互式操作將越來越適應(yīng)用戶操作需求。VOD視頻點播系統(tǒng)的普及、應(yīng)用能夠為運營商帶來巨大收益,并有效減少用戶流失,在與電信IPTV的競爭中占據(jù)優(yōu)勢。廣電運營商以VOD視頻點播為重要手段,采用更加先進(jìn)的VOD技術(shù)平臺,始終需要不斷豐富產(chǎn)品種類和節(jié)目資源,并對其配以更加行之有效的營銷策略,來爭取更大的利益。本文參考NGOD2.0部分構(gòu)架,設(shè)計了基于IPQAM的全新VOD視頻點播方案。該方案結(jié)合條件收系統(tǒng)(KingVonCAS)和用戶管理系統(tǒng),并配套了EPG系統(tǒng)、數(shù)據(jù)廣播系統(tǒng)、股票系統(tǒng)和VOD系統(tǒng),形成了擁有自主知識產(chǎn)權(quán)的數(shù)字電視系統(tǒng)整體解決方案。VOD視頻點播系統(tǒng)構(gòu)架主要包含:內(nèi)容收錄子系統(tǒng)、用戶接入子系統(tǒng)、視頻服務(wù)器、時移服務(wù)器、后臺管理子系統(tǒng)、IPQAM、STB機頂盒等幾部分。本文主要內(nèi)容包括:1.闡述NGOD2.0構(gòu)架基礎(chǔ)理論,其組件分類及接口定義等;2.基于IPQAM的VOD視頻點播系統(tǒng)設(shè)計概述及重點部分包括控制中心,視頻服務(wù)器設(shè)計詳細(xì)介紹;3.基于IPQAM的VOD視頻點播系統(tǒng)的測試用例,系統(tǒng)、功能特點介紹和系統(tǒng)總結(jié)。通過該設(shè)計最終完成的VOD視頻點播系統(tǒng)具備了實用性,先進(jìn)性,安全性,可控性等優(yōu)勢。該設(shè)計版本VOD系統(tǒng)采用基于IP網(wǎng)絡(luò)+IPQAM的低成本解決方案,主干網(wǎng)利用IP網(wǎng)絡(luò)進(jìn)行內(nèi)容分發(fā),分前端通過現(xiàn)有HFC網(wǎng)絡(luò)下發(fā)媒體流,突破網(wǎng)絡(luò)帶寬瓶頸,用戶請求信息通過IP網(wǎng)絡(luò)由雙向機頂盒回傳。系統(tǒng)模塊化設(shè)計,良好的開放性和擴展性,支持系統(tǒng)功能和規(guī)模平滑擴展,支持服務(wù)器集中部署和分布式部署,支持MPEG-2、MPEG-4、H.264、AVS等編碼標(biāo)準(zhǔn)。系統(tǒng)開發(fā)遵循國際和國家標(biāo)準(zhǔn),如ISO、ITU-T、MPEG、DVB-C等。提供標(biāo)準(zhǔn)開放的協(xié)議接口,便于第三方機頂盒廠家移植。
[Abstract]:In the whole translation process of digital television, interactive operation will be more and more adapt to the popularity of user demand.VOD VOD system, the application can bring huge profits to the operators, and effectively reduce the loss of users, and in telecom IPTV take advantage of the competition. Radio and television operators in VOD video on demand as an important means, using VOD technology platform more advanced, always need to constantly enrich the product range and program resources, and the match with more effective marketing strategies, to strive for greater interest in this paper. Part NGOD2.0 framework, design a new VOD VOD system based on IPQAM. This scheme combined the condition receiving system (KingVonCAS) and user management system, and supporting EPG system, data broadcast system, stock system and VOD system, the formation of the overall solution of.VOD video on demand system of digital TV system with independent intellectual property rights The framework mainly includes: content collection subsystem, user access subsystem, video server, time shifting server, backstage management subsystem, IPQAM, STB set-top boxes and other parts. The main contents of this paper include: 1. based on the NGOD2.0 theory, the component classification and interface definition; 2. IPQAM based VOD video on demand overview of system design and key part comprises a control center, the video server design is introduced in detail; the 3. test case, VOD VOD system based on IPQAM system, summarizes the features of introduction and system. Through the VOD video on demand system of the design finished with practical, advanced, safety, controllability and other advantages. Low cost IP network based on +IPQAM program designed by this version of the VOD system, the backbone network using IP content distribution, front end through the existing HFC network under the streaming media, network bandwidth bottle breakthrough The neck, the user request information through the IP network set-top box is composed of a two-way feedback system. The modular design, good openness and scalability, support system function and scale of smooth expansion, support server centralized deployment and distributed deployment, support MPEG-2, MPEG-4, H.264, AVS encoding standard. The system is developed according to international and national standards, such as ISO, ITU-T, MPEG, DVB-C and so on. Provide open standard protocol interface for third party set-top box manufacturers transplantation.

【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN948.64

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本文編號：1655563