基于ARM和Android的智能电视系统研发
发布时间：2019-04-17 05:28
【摘要】：近些年,嵌入式技术的快速发展和物联网概念的推广促使越来越多的设备跟“智能”和“网络”联系在一起,智能电视正是这一趋势下的产物。所谓智能电视,是指搭载了智能操作系统,并且可以接入互联网,用户可在线观看视频,也可安装和卸载第三方服务商提供的程序来扩充电视功能的这样一类数字电视的总称。 智能电视功能日趋强大,同时对硬件配置和操作系统的要求也越来越高。本文基于嵌入式领域最具优势的ARM体系结构和Android操作系统实现了一套高端的智能电视解决方案。方案的主处理芯片采用Marvell公司的88DE3100多媒体处理芯片,此芯片的主CPU是一个兼容ARMv7的双核CPU,芯片还内置了多个音视频处理模块。Android操作系统的版本为2.3的版本Gingerbread。 本文分别对智能电视的硬件设计和软件设计的实现过程做了描述。硬件设计包括硬件系统管理模块、图像处理模块、音频处理模块、视频处理模块、数字版权管理模块和外部存储模块。软件设计包括系统引导模块、系统状态、操作系统启动流程和多媒体处理框架。文章最后分别对系统的更新过程,eMMC存储的优化方法和UBoot烧录过程的改进方案做了研究。
[Abstract]:In recent years, with the rapid development of embedded technology and the promotion of the concept of Internet of things, more and more devices are connected with "intelligence" and "network". Intelligent TV is the product of this trend. The so-called intelligent TV is a kind of digital TV which has an intelligent operating system and can be connected to the Internet, where users can watch video online or install and uninstall programs provided by third-party service providers to expand television functions. Intelligent TV function is becoming more and more powerful, at the same time, the requirements of hardware configuration and operating system are also higher and higher. In this paper, a high-end intelligent TV solution is implemented based on the ARM architecture and Android operating system. The main processing chip of the scheme is Marvell's 88DE3100 multimedia processing chip. The main CPU of this chip is a dual-core CPU, chip compatible with ARMv7. It also has several audio and video processing modules. The version 2.3 of the Android operating system is Gingerbread.. In this paper, the hardware design and software design of intelligent TV are described. The hardware design includes hardware system management module, image processing module, audio processing module, video processing module, digital rights management module and external storage module. Software design includes system boot module, system status, operating system startup process and multimedia processing framework. At the end of the paper, the updating process of the system, the optimization method of eMMC storage and the improvement scheme of UBoot burning process are studied respectively.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TN949.2;TP368.1
本文编号：2459127
[Abstract]:In recent years, with the rapid development of embedded technology and the promotion of the concept of Internet of things, more and more devices are connected with "intelligence" and "network". Intelligent TV is the product of this trend. The so-called intelligent TV is a kind of digital TV which has an intelligent operating system and can be connected to the Internet, where users can watch video online or install and uninstall programs provided by third-party service providers to expand television functions. Intelligent TV function is becoming more and more powerful, at the same time, the requirements of hardware configuration and operating system are also higher and higher. In this paper, a high-end intelligent TV solution is implemented based on the ARM architecture and Android operating system. The main processing chip of the scheme is Marvell's 88DE3100 multimedia processing chip. The main CPU of this chip is a dual-core CPU, chip compatible with ARMv7. It also has several audio and video processing modules. The version 2.3 of the Android operating system is Gingerbread.. In this paper, the hardware design and software design of intelligent TV are described. The hardware design includes hardware system management module, image processing module, audio processing module, video processing module, digital rights management module and external storage module. Software design includes system boot module, system status, operating system startup process and multimedia processing framework. At the end of the paper, the updating process of the system, the optimization method of eMMC storage and the improvement scheme of UBoot burning process are studied respectively.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TN949.2;TP368.1
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