基于Hi2011的数字机顶盒的设计实现

【作者】 瞿丹；

【导师】 沈晓峰；

【作者基本信息】 电子科技大学 ， 通信与信息系统， 2006， 硕士

【摘要】 数字电视发展至今已经有2 0多年的历史，而我国的数字电视也已经发展了十多年。在未来的几年里，数字电视系统将完全取代模拟电视系统，在现有信道的基础上，将能收看到比过去至少多4倍的电视节目来丰富人们的生活、获取更多的资讯，数字机顶盒应运而生。数字电视机顶盒不仅仅是模拟电视到数字电视过渡时期的产物，它也因付费电视和视频点播、IPTV等数字电视的新发展而存在。在数字电视一体机还未普及的今天，对数字机顶盒的研究仍然具有实际的意义，同时，对数字机顶盒的研究也可以促进多媒体处理器的发展。本文涉及的是有线电视数字电视机顶盒的软硬件开发，采用Haier公司的Hi2011芯片完成了有线电视数字机顶盒的开发。本文所做工作如下：1．分析总结了机顶盒的结构，讨论了机顶盒的相关技术如操作系统等，分析了机顶盒的硬件结构，还对要使用的Hi2011芯片进行了讨论分析。2．利用Hi2011芯片及其提供的开发软件包进行了有线电视数字机顶盒的应用程序开发，即节目搜索及节目提取程序的设计和解复用通道的软件设计。3．完成了数字电视机顶盒的硬件设计与PCB制板。4．进行了联机软件调试，实现了电视节目的正常接收。更多还原

【Abstract】 Digital TV has been developing for more than 20 years. China starts its Digital TV scheme on early 90s of 20 century. Digital TV will replace analog TV in next several years. People can watch programs more than 4 times as before. As a result, people can get more information and enjoy themselves more. During this transition stage, STB (Set Top Box) holds the balance.STB is not only a substitute of digital TV, it is also the creation of new developing of digital TV such as the developing of VOD (Video On Device) and CA (Conditional Access) and IPTV.It is useful to study on the design of STB since the analog-digital hybrid iDTV is not come into being. Meanwhile, studies on STB can accelerate the development of multimedia.This dissertation involves in the development of STB in two parts: application software design and hardware design. Work is finished bases on the chip of Hi2011.The main contents are as follows:1. Discussions of the key techniques of STB such as the operating system are included. Analysis of the hardware architecture of STB and the chip of Hi2011 that we plan to use are also included in this dissertation.2. The design of program searching and parsing and de-mux module, which are the Application software of the STB, are discussed in this dissertation.3. The hardware design of STB is discussed and the PCB (Printed Circuit Board) picture is presented.4. We finished software debugging and program parsing; the result is presented at the last chapter of the更多还原