本文選題：信息化 + 視頻點(diǎn)播��； 參考：《電子科技大學(xué)》2013年碩士論文

【摘要】：教育信息化是高校傳統(tǒng)教學(xué)手段的變革，運(yùn)用現(xiàn)代教學(xué)技術(shù)手段開展教學(xué)活動(dòng)，提高教學(xué)質(zhì)量是教育信息化改革的主要目的，隨著網(wǎng)絡(luò)通訊、多媒體技術(shù)的發(fā)展，基于網(wǎng)絡(luò)的多媒體視頻教育、在線課堂等以其豐富的信息資源、友好的交互性能以及優(yōu)良的開放性等特點(diǎn)逐漸發(fā)展成為比較成熟的新型教育形式。網(wǎng)絡(luò)視頻教學(xué)資源應(yīng)用以其內(nèi)容豐富、應(yīng)用快捷、定位準(zhǔn)確的優(yōu)勢(shì)得到高校的推動(dòng)，結(jié)合傳統(tǒng)教育網(wǎng)絡(luò)資源進(jìn)行網(wǎng)絡(luò)學(xué)習(xí)和實(shí)時(shí)交流，網(wǎng)絡(luò)視頻信息為學(xué)生的學(xué)習(xí)提供生動(dòng)、真實(shí)的場(chǎng)景。視頻點(diǎn)播利用校園網(wǎng)和視頻技術(shù)的優(yōu)勢(shì)，以自適應(yīng)的方式按需播放，沒有時(shí)間、地點(diǎn)、空間的限制，改變學(xué)生觀看教學(xué)視頻的被動(dòng)方式。本文通過對(duì)教學(xué)視頻點(diǎn)播技術(shù)的研究，利用流媒體技術(shù)對(duì)視頻教學(xué)資源進(jìn)行規(guī)范處理，構(gòu)建具有實(shí)時(shí)交互功能的視頻教學(xué)資源點(diǎn)播系統(tǒng)，應(yīng)用于高校教學(xué)活動(dòng)，為學(xué)生提供“面對(duì)面”學(xué)習(xí)的環(huán)境。 論文采用了基于.net技術(shù)的B/S三層結(jié)構(gòu)的教學(xué)視頻點(diǎn)播系統(tǒng)解決方案，確定系統(tǒng)的實(shí)現(xiàn)模式和實(shí)現(xiàn)技術(shù)。利用DirectShow技術(shù)對(duì)視頻流進(jìn)行采集處理、解碼回放，采用雙隊(duì)列緩沖技術(shù)保證流式傳輸方式的視頻數(shù)據(jù)傳輸順序、可靠。系統(tǒng)采用面向?qū)ο笏枷朐O(shè)計(jì)，功能完善、界面友好，保護(hù)制作者的知識(shí)產(chǎn)權(quán)。設(shè)計(jì)點(diǎn)播線程分配機(jī)制緩解視頻服務(wù)器負(fù)載，并對(duì)不同帶寬的客戶端進(jìn)行測(cè)試，，保證視頻流文件在網(wǎng)絡(luò)傳輸?shù)姆�(wěn)定速率控制。 該系統(tǒng)的設(shè)計(jì)技術(shù)先進(jìn)、通用性強(qiáng)、穩(wěn)定可靠，普遍適用于各高校網(wǎng)絡(luò)教學(xué)平臺(tái)，通過該平臺(tái)可以將優(yōu)秀教師的課堂進(jìn)行網(wǎng)絡(luò)實(shí)時(shí)傳送，使學(xué)生猶如置身現(xiàn)場(chǎng)，打破了空間的局限性，真正達(dá)到視頻資源共享。
[Abstract]:Education informatization is the change of traditional teaching means in colleges and universities. The main purpose of educational informatization reform is to use modern teaching technology to carry out teaching activities and improve teaching quality. With the development of network communication and multimedia technology, Web-based multimedia video education, online classroom and so on, with its rich information resources, friendly interactive performance and excellent openness, has gradually developed into a relatively mature new form of education. The application of network video teaching resources is promoted by colleges and universities because of its rich content, fast application and accurate positioning. Combined with traditional educational network resources, network learning and real-time communication are carried out. The network video information provides vividness for students' learning. A real scene. VOD makes use of the advantages of campus network and video technology to play on demand in an adaptive way, without time, place, and space constraints, and changes the passive way for students to watch instructional video. Based on the research of instructional VOD technology, this paper uses streaming media technology to normalize the video teaching resources, and constructs a VOD system with real-time interactive function, which is applied to the teaching activities in colleges and universities. Provide a "face to face" learning environment for students. In this paper, we adopt the B / S three-layer structure based on. Net technology to solve the system of instructional video on demand, and determine the realization mode and technology of the system. The video stream is collected and processed by DirectShow technology, decoded and played back, and the technology of double queue buffer is used to ensure the sequence and reliability of video data transmission in streaming mode. The system adopts object-oriented design, perfect function, friendly interface and protects the intellectual property of the producer. An on-demand thread allocation mechanism is designed to alleviate the load of the video server and test the clients with different bandwidth to ensure the stable rate control of the video stream files in the network. The design technology of this system is advanced, universal, stable and reliable, and it is generally applicable to the network teaching platform of colleges and universities. Through this platform, the excellent teachers' classroom can be transmitted in real time on the network, so that the students can be placed in the scene. Break the limitation of space, really achieve the sharing of video resources.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TP311.52

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張胤;遲學(xué)芬;沈敏潔;;視頻點(diǎn)播系統(tǒng)中流量控制算法的研究與實(shí)現(xiàn)[J];吉林大學(xué)學(xué)報(bào)(信息科學(xué)版);2006年04期

2 郝明哲;候正信;;視頻點(diǎn)播系統(tǒng)[J];電子測(cè)量技術(shù);2005年06期

3 王軍;;基于HFC網(wǎng)絡(luò)的VOD技術(shù)[J];廣播電視信息;2006年04期

4 焦鋒;王麗平;;基于局域網(wǎng)的分布式VOD系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)[J];河北建筑科技學(xué)院學(xué)報(bào);2005年04期

5 張占軍,韓承德,楊學(xué)良;多媒體實(shí)時(shí)傳輸協(xié)議RTP[J];計(jì)算機(jī)工程與應(yīng)用;2001年04期

6 李太君,吳澤暉;流媒體傳輸協(xié)議及其應(yīng)用開發(fā)[J];計(jì)算機(jī)工程與應(yīng)用;2004年03期

7 胡平;聶朋朋;陸建德;;典型P2P流媒體模型及其關(guān)鍵技術(shù)[J];計(jì)算機(jī)工程;2009年03期

8 鄭晶晶,高勝法;一種基于DirectShow的MPEG2流式網(wǎng)絡(luò)播放器[J];計(jì)算機(jī)應(yīng)用;2003年10期

9 劉達(dá) ,龔建榮;視頻點(diǎn)播關(guān)鍵技術(shù)及發(fā)展策略[J];通信世界;2002年31期

10 姜自立;;基于流媒體技術(shù)的校園網(wǎng)教學(xué)應(yīng)用研究[J];臨沂師范學(xué)院學(xué)報(bào);2006年03期

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