基于RTMP的在线互动视频教育云平台的设计与实现

发布时间：2018-11-19 08:42

【摘要】：近年来,互联网与智能手机迅速普及,4G技术飞速发展并推广,网络环境得到空前改善,而传统线下教育模式深受传统因素掣肘,还面临着房租及人工成本飞涨的挑战;与此同时,受教育者个性化需求也导致教学模式逐步向小班及VIP精英课程转型,互联网在线教育呈现蓬勃发展态势。国外各大互联网教育平台或推出产品或获得融资,国内在线教育亦是百花齐放。可纵观现下各系统,均以资源提前录入后学生依据需求回放作为主要教学形式,教学性有余而互动性不足,且产品同质化严重。如何创新出流畅度高、时延性低、互动性强、更适宜当前网络环境及客户需求的在线教育系统成为当下研究的热点问题。本文研究开发了一个高效、稳定的在线互动视频教育平台系统。通过研究在线互动视频的传输方式和传输协议,深度分析了如何使用并优化RTMP视频传输协议实现在线互动视频的传输与播放。本文采用了对RTMP协议数据进行分块的技术,将传统的数据块细分为数据单元,同时使用队列管理数据临时排序和发送手段,将单线传输变为多线传输,最大程度上提升了网络通道的利用率,减少了在线用户观看直播的时延性,提高了流畅性。同时对现有的云技术进行了分析,针对系统的整体实现,对现今软件实现的主流的架构、先进的前端技术进行了调研、选型。本文提出了利用VMware vSphere进行平台的云部署的方案,充分利用云计算和处理能力,解决了在线视频教育平台中数据计算延迟和推流效率慢的问题。测试表明,通过RTMP协议和云平台部署的在线互动视频教育平台能够达到多用户、高效、稳定的在线视频互动效果,同时较之其他直播网站在处理并发、在线视频流畅上有着明显的优势,在资源消耗、流量等方面也较其它在线教育系统有相对优势。
[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.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP393.09

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