基于SMP8655的UPnP AV终端的设计与实现

发布时间：2018-05-30 02:24

本文选题：数字家庭网络 + UPnPAV　；参考：《华南理工大学》2012年硕士论文

【摘要】：计算机技术和网络通信技术的高速发展，促使电脑、手机、数码产品和数字家电等信息终端的性能迅速提升，人们对生活质量的要求日益提高。智能楼宇、智能家居和信息家电的发展，使住宅环境作为技术实用平台的作用日渐显著，家庭网络中的信息设备间的资源共享和协同合作也一直都是研究的重点课题。而家庭网络中的音视频嵌入式终端更是各大电子设备厂商追逐的热点。本文旨在实现一个基于UPnP AV框架的嵌入式多媒体终端系统，实现家庭网络中不同音视频终端设备之间的资源和服务共享。本文首先概述了数字家庭网络的研究背景和意义，分析了几种主流数字家庭网络协议的优劣势，然后深入研究了UPnP协议的实现机制和UPnPAV框架下设备的服务内容以及设备和控制点的协同工作过程。其次探讨了平台选型的参考标准，，评估了平台的硬件和软件资源，最终选用SMP8655作为硬件开发平台。根据课题的研究目的，设计了三层系统架构，并按照高内聚，低耦合的原则，对模块仔细划分，解决了平台移植以及播放器开发等技术难点，采用Qt语言进行用户图形接口设计实现了跨平台特性。最终实现了一个基于UPnP协议，集成了媒体服务器、媒体播放器和媒体控制点功能的嵌入式终端系统。该系统支持红外遥控器输入控制，支持播放多种格式的音频和高清视频文件，并能兼容第三方的UPnP AV设备。最后结合第三方UPnP设备，对该文实现的SMP8655AV终端的各项功能进行了测试，测试结果达到设计目标。本文设计的系统突破了家庭音视频设备之间的“信息孤岛”，实现了家庭信息化设备之间的信息共享，使得人们更便捷地享受信息服务，具有良好的应用价值和市场前景。
[Abstract]:With the rapid development of computer technology and network communication technology, the performance of information terminals, such as computers, mobile phones, digital products and digital appliances, has been rapidly improved. With the development of intelligent buildings, smart homes and information appliances, the role of residential environment as a practical platform for technology is becoming more and more significant. The resource sharing and collaborative cooperation among information devices in home networks are always the key research topics. The audio and video embedded terminal in home network is a hot spot pursued by major electronic equipment manufacturers. The purpose of this paper is to implement an embedded multimedia terminal system based on UPnP AV framework, and to share resources and services among different audio and video terminal devices in home network. This paper first summarizes the research background and significance of digital home network, and analyzes the advantages and disadvantages of several mainstream digital home network protocols. Then, the implementation mechanism of UPnP protocol, the service content of the device under the UPnPAV framework and the cooperative working process between the device and the control point are studied in detail. Secondly, the reference standard of platform selection is discussed, and the hardware and software resources of the platform are evaluated. Finally, SMP8655 is chosen as the hardware development platform. According to the purpose of the research, the three-tier system architecture is designed, and according to the principle of high cohesion and low coupling, the module is divided carefully to solve the technical difficulties such as platform transplantation and player development, etc. The cross-platform characteristic is realized by using QT language to design the user graphic interface. Finally, an embedded terminal system based on UPnP protocol is implemented, which integrates the functions of media server, media player and media control point. The system supports input control of infrared remote control, playback of audio and high-definition video files in various formats, and compatibility with third-party UPnP AV devices. Finally, the functions of the SMP8655AV terminal implemented in this paper are tested with the third party UPnP device, and the test results reach the design goal. The system designed in this paper breaks through the "information island" between the home audio and video equipment, realizes the information sharing between the family information equipment, makes people enjoy the information service more conveniently, has the good application value and the market prospect.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1

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