嵌入式网络视频应用技术的研究与实现

发布时间：2018-07-02 07:39

本文选题：嵌入式系统 + 异步通信　；参考：《南京邮电大学》2012年硕士论文

【摘要】：随着互联网技术和多媒体应用的发展,嵌入式系统技术和Web应用技术结合的嵌入式网络视频应用逐渐普及。传统Web应用服务器负载过重、浏览器和服务器交互困难,并且由于嵌入式系统处理资源的限制,基于Web的嵌入式网络视频应用技术值得深入研究和探索。为了解决传统嵌入式Web应用浏览器和服务器端代码重用率低,开发扩展难的问题,本文引入异步通信技术,设计和实现了一种基于CGI+Ajax的嵌入式网络视频应用架构;采用网络通信机制,结合视频播放器、云台接口,设计和实现了视频配置和云台控制;针对浏览器与服务器的不对等通信,利用异步通信机制,结合定时器技术,设计和实现了对服务器的异常监测;为了实现网络视频应用可编程功能,提出并实现了两种解决方案,服务应用接口的提取,使其同时支持B/S与C/S模式的混合调用和嵌入式系统中Web服务的定制。本文对网络视频应用系统进行了功能测试、健壮性测试和性能测试,测试结果表明:视频配置、云台控制功能正确,符合用户需求;系统能对用户异常操作和网络异常情况进行相应处理,具有一定的健壮性;通过WAS和soapUI模拟多用户对嵌入式服务器进行性能测试,系统响应速度快,无错误发生,表明系统性能能够满足用户需求。
[Abstract]:With the development of Internet technology and multimedia application, embedded network video application which combines embedded system technology and Web application technology is becoming more and more popular. Traditional Web application server is overloaded, browser and server interaction is difficult, and because of the limitation of embedded system processing resources, Web-based embedded network video application technology is worthy of further study and exploration. In order to solve the problem of low reuse rate of browser and server-side code in traditional embedded web application, this paper introduces asynchronous communication technology to design and implement an embedded network video application architecture based on CGI Ajax. Using network communication mechanism, combining video player and cloud head interface, designing and realizing video configuration and cloud head control, aiming at the unequal communication between browser and server, using asynchronous communication mechanism, combining with timer technology, In order to realize the programmable function of network video application, two solutions, service application interface extraction, are designed and implemented. It also supports the hybrid invocation of B / S and C / S mode and the customization of Web services in embedded systems. This paper carries on the function test, the robustness test and the performance test to the network video application system, the test result shows: the video configuration, the cloud head control function is correct, conforms to the user demand; The system can deal with the abnormal operation of user and the abnormal condition of network, which is robust, and simulates the performance of embedded server by using was and soapUI. The system has fast response speed and no error. It shows that the system performance can meet the needs of users.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1

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