發(fā)布時(shí)間：2018-11-19 08:42

【摘要】：近年來,互聯(lián)網(wǎng)與智能手機(jī)迅速普及,4G技術(shù)飛速發(fā)展并推廣,網(wǎng)絡(luò)環(huán)境得到空前改善,而傳統(tǒng)線下教育模式深受傳統(tǒng)因素掣肘,還面臨著房租及人工成本飛漲的挑戰(zhàn);與此同時(shí),受教育者個(gè)性化需求也導(dǎo)致教學(xué)模式逐步向小班及VIP精英課程轉(zhuǎn)型,互聯(lián)網(wǎng)在線教育呈現(xiàn)蓬勃發(fā)展態(tài)勢(shì)。國外各大互聯(lián)網(wǎng)教育平臺(tái)或推出產(chǎn)品或獲得融資,國內(nèi)在線教育亦是百花齊放�？煽v觀現(xiàn)下各系統(tǒng),均以資源提前錄入后學(xué)生依據(jù)需求回放作為主要教學(xué)形式,教學(xué)性有余而互動(dòng)性不足,且產(chǎn)品同質(zhì)化嚴(yán)重。如何創(chuàng)新出流暢度高、時(shí)延性低、互動(dòng)性強(qiáng)、更適宜當(dāng)前網(wǎng)絡(luò)環(huán)境及客戶需求的在線教育系統(tǒng)成為當(dāng)下研究的熱點(diǎn)問題。本文研究開發(fā)了一個(gè)高效、穩(wěn)定的在線互動(dòng)視頻教育平臺(tái)系統(tǒng)。通過研究在線互動(dòng)視頻的傳輸方式和傳輸協(xié)議,深度分析了如何使用并優(yōu)化RTMP視頻傳輸協(xié)議實(shí)現(xiàn)在線互動(dòng)視頻的傳輸與播放。本文采用了對(duì)RTMP協(xié)議數(shù)據(jù)進(jìn)行分塊的技術(shù),將傳統(tǒng)的數(shù)據(jù)塊細(xì)分為數(shù)據(jù)單元,同時(shí)使用隊(duì)列管理數(shù)據(jù)臨時(shí)排序和發(fā)送手段,將單線傳輸變?yōu)槎嗑�傳輸,最大程度上提升了網(wǎng)絡(luò)通道的利用率,減少了在線用戶觀看直播的時(shí)延性,提高了流暢性。同時(shí)對(duì)現(xiàn)有的云技術(shù)進(jìn)行了分析,針對(duì)系統(tǒng)的整體實(shí)現(xiàn),對(duì)現(xiàn)今軟件實(shí)現(xiàn)的主流的架構(gòu)、先進(jìn)的前端技術(shù)進(jìn)行了調(diào)研、選型。本文提出了利用VMware vSphere進(jìn)行平臺(tái)的云部署的方案,充分利用云計(jì)算和處理能力,解決了在線視頻教育平臺(tái)中數(shù)據(jù)計(jì)算延遲和推流效率慢的問題。測(cè)試表明,通過RTMP協(xié)議和云平臺(tái)部署的在線互動(dòng)視頻教育平臺(tái)能夠達(dá)到多用戶、高效、穩(wěn)定的在線視頻互動(dòng)效果,同時(shí)較之其他直播網(wǎng)站在處理并發(fā)、在線視頻流暢上有著明顯的優(yōu)勢(shì),在資源消耗、流量等方面也較其它在線教育系統(tǒng)有相對(duì)優(yōu)勢(shì)。
[Abstract]:In recent years, Internet and smart phone have been popularized rapidly, 4G technology has been developed and popularized rapidly, the network environment has been improved unprecedentedly, and the traditional offline education model has been restricted by traditional factors, and it is also facing the challenge of soaring rent and labor costs. At the same time, the individualized needs of the educatees also lead to the gradual transformation of teaching mode to small classes and VIP elite courses, and the online education on the Internet presents a vigorous development trend. Foreign major Internet education platforms or products or access to financing, domestic online education is also blooming. Throughout the present system, the main teaching form is the students' replay according to the demand after the resources are input in advance, the teaching is more than enough, but the interaction is insufficient, and the product is homogenized seriously. How to innovate the online education system with high fluency, low delay, strong interaction and more suitable for the current network environment and customer needs has become a hot issue. This paper studies and develops an efficient and stable online interactive video education platform system. By studying the transmission mode and transmission protocol of online interactive video, this paper deeply analyzes how to use and optimize the RTMP video transmission protocol to realize the transmission and playback of online interactive video. In this paper, the RTMP protocol data is divided into blocks, the traditional data blocks are subdivided into data units, and the queue management data temporary sorting and sending means are used to transform single-line transmission into multi-line transmission. It improves the utilization rate of network channel, reduces the delay of online users to watch live broadcast, and improves the fluency. At the same time, the existing cloud technology is analyzed, aiming at the overall implementation of the system, the mainstream architecture of the current software implementation and advanced front-end technology are investigated and selected. In this paper, we propose a cloud deployment scheme based on VMware vSphere, which makes full use of cloud computing and processing capabilities, and solves the problems of slow data computing delay and low push efficiency in online video education platform. The test results show that the online interactive video education platform deployed through the RTMP protocol and cloud platform can achieve multi-user, efficient and stable online video interactive effect, at the same time, compared with other live broadcast websites, the online interactive video education platform can handle concurrency. There are obvious advantages in online video fluency, such as resource consumption, traffic and so on.
【學(xué)位授予單位】：湖北工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP393.09

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