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視頻會議系統(tǒng)h323與sip互通網(wǎng)關(guān)的設(shè)計_與實現(xiàn)碩士學位論文(已修改)

2025-06-18 00:53 本頁面
 

【正文】 碩士學位論文 視頻會議系統(tǒng) SIP互通網(wǎng)關(guān)的設(shè)計與實現(xiàn) 專 業(yè) 名 稱 : 軟件工程 研究生姓名 : 溫泉 導 師 姓 名 : 翟 玉 慶 倪 慶 劍 THE DESIGN AND IMPLEMENTATION OF INTERWORKING GATEWAY BETWEEN AND SIP ON VIDEO CONFERENCE A Thesis Submitted to Southeast University For the Academic Degree of Master of Engineering BY WEN Quan Supervised by Prof. ZHAI Yuqing and Dr. NI Qingjian College of Software Engineering Southeast University June 2021 東 南 大 學 學 位 論 文 獨 創(chuàng) 性 聲 明 本人聲明所呈交的學位論文是我個人在導師指導下進行的研究工作及取得的研究成果。盡我所知,除了文中特別加以標注和致謝的地方外,論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果,也不包含為獲得東南大學或其它教育機構(gòu)的學位或證書而使用過的材料。與我一同工作的同志對本研究所做的任何貢獻均已在論文中作了明確的說明并表示了謝意。 研究生簽名: 日 期: 東 南 大 學 學 位 論 文 使 用 授 權(quán) 聲 明 東南大學、中國科學技術(shù)信息研究所、國家圖書館有權(quán)保留本人所送交學位論文的復印件和電子文檔, 可以采用影印、縮印或其他復制手段保存論文。本人電子文檔的內(nèi)容和紙質(zhì)論文的內(nèi)容相一致。除在保密期內(nèi)的保密論文外,允許論文被查閱和借閱,可以公布(包括刊登)論文的全部或部分內(nèi)容。論文的公布(包括刊登)授權(quán)東南大學研究生院辦理。 研究生簽名: 導師簽名: 日 期:摘要 I 摘要 視頻會議系統(tǒng)又稱會議電視系統(tǒng),是指兩個或兩個以上不同地方的個人或群體,通過傳輸線路及多媒體設(shè)備,將聲音,影像 及文件資料互相傳輸,實現(xiàn)即時互動的溝通 。 隨著 視頻會議技術(shù)的日益成熟,視頻會議系統(tǒng)在世 界范圍內(nèi)各大中小型企業(yè)中的 使用 越來越普及, 而主流視頻會議系統(tǒng)是基于國際電信聯(lián)盟制定的 SIP 協(xié)議, 協(xié)議技術(shù)成熟、應(yīng)用廣泛,但較為復雜、繁瑣,而 SIP 協(xié)議相對于 協(xié)議出現(xiàn)較晚,具有容易理解,易于實現(xiàn)的特點,因此發(fā)展迅速。因此基于兩種不同協(xié)議的視頻會議終端之間的互通成為了當下趨勢, 本課題 正是 在 此背景 下進行的 研究和開發(fā)。 本文設(shè)計并實現(xiàn)了 視頻會議系統(tǒng) 與 SIP 互通網(wǎng) 關(guān) , 網(wǎng)關(guān) 基于 與 SIP 協(xié)議棧 , 對分別基于 與 SIP 協(xié)議的終端提供了良好的互通功能 。 具體的, 本文 針對 互通 網(wǎng)關(guān) 的開發(fā)做了如下工作: 一. 通過 研究 對比 SIP 協(xié)議的 特點和優(yōu)劣勢 , 具體探討了兩種不同協(xié)議的呼叫流程,消息解析,消息響應(yīng)方式, 提出了協(xié)議轉(zhuǎn)換的解決方案, 設(shè)計了互通網(wǎng)關(guān)的架構(gòu)。 二 . 在互通網(wǎng)關(guān)軟 件架構(gòu)的具體設(shè)計中,通過對 協(xié)議間 通信機制的分析,提出了模塊化的設(shè)計方案,提高了 互通網(wǎng)關(guān) 的開發(fā)效率,減少了維護成本。 三 . 通過延伸 的需求分析 , 為即時發(fā) 現(xiàn) 互通網(wǎng)關(guān)的 bug,保證其在提供服務(wù)時的穩(wěn)定性,特別 增加了 日志系統(tǒng),以便在問題發(fā)生時準確的跟蹤定位出根因 。 論文的研究工作基本 解決了 互通網(wǎng)關(guān) 設(shè)計過程中的一些 關(guān)鍵技術(shù)問題, 滿足了視頻會議系統(tǒng)中分別基于 協(xié)議與 SIP 協(xié)議終端的互通 、支持多種視音頻協(xié)議 以及 通過日志系統(tǒng)迅速定位問題根因 等需求,系統(tǒng)安全性和可靠性高,報警實時,具有很好的工程應(yīng)用價值。 關(guān)鍵詞: 協(xié)議 , SIP 協(xié)議 , 互通網(wǎng)關(guān) , 消息解析 Abstract II Abstract Video conference system is also called the conference television system, refers to two or more than two different parts of the individual or groups, Via the transmission lines and multimedia equipment, sound, image and file data can be transmitted with each other, realizing realtime interactive munication. With video conference technology being more and more mature, video conference system within the scope of small and mediumsized enterprises are widely used around the world. And mainstream video conferencing system is based on the protocol developed by the international telemunication union and the SIP protocol proposed by the Inter engineering group. The technology of protocol is mature and widely used, but it is more plex and tedious. However, pared with the protocol, SIP protocol appeared later but it has the characteristics of easyunderstanding, easyimplement and developing rapidly. So the interworking gateway between terminals of video conference based on two different protocols has bee the trend. And the topic is the under the background of the research and development of that. This paper designed and implemented of video conference system and SIP interworking gateway. The gateway is based on and SIP protocol stack and provides a great interworking function for the terminal based on and SIP protocol. Specifically, this paper made the following work for the development of the gateway as follows: Firstly, by paring with the characteristics, advantages and disadvantages of and SIP protocol, specifically discussed the analysis of two different protocols in the calling process, message parsing and message response mode field. I put forward the solution of transformation between different protocols and design the architecture of the interworking gateway. Secondly, I put forward the modular design to improve the efficiency of the development and to reduce maintenance costs of the system in the architecture of the interworking gateway after analyzing the munication mechanism between the proposed protocols. Thirdly, in order to detect the real time errors in the interworking gateway, the logging system is needed to track and position the problems occurred in the system which is running, so that the security and stability is always being guarantee. The research work of this thesis has basically solved some key technical problems in the interworking gateway in the design process and satisfies many needs, For example, the interchanges terminal based on protocol and SIP protocol can support for multiple video and audio protocols. And it could quickly position the problems by logging system in the video conference system. It has friendly manmachine interface, high system reliability and security, alarm in realtime, and has great value in engineering application. Keywords: protocols, SIP protocol, munication gateway, message parsing 目錄 I 目錄 摘要 ..................................................................................................................................I Abstract ........................................................................................................................... II 目錄 ..................................................................................................................................I 第一章 緒論 .................................................................................................................... 1 研究背景 ............................................................................................................ 1 研究動機與目的 .................................................................................................. 1 國內(nèi)外研究現(xiàn) 狀 .................................................................................................. 1 發(fā)展歷史 ................................................................................................... 2 國內(nèi)外主要廠商及產(chǎn)品 .................................
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