系统的网络机顶盒硬件设计
了该网络机顶盒的硬件系统总体结构图,根据需求分析采用以 Hi3716MV300 为主
处理器、512MB DDR 和 2GB flash 的最小系统解决方案。然后详细设计了网络机
顶盒硬件系统的功能模块,针对各个功能模块进行了原理说明,并给出了部分的
电路原理图,之后通过 cadence 的 PCB Editor 设计出了系统的 PCB 图。由于本
机顶盒采用了 操作系统,所以在研究了 android 系统上实现网络机
顶盒相关业务功能的同时,在原有 Android 操作系统架构不变的情况下,设计并
实现系统软件各层所需的扩展功能及相应接口。最后对设计完成的网络机顶盒进
行了电性能测试,给出了测试方法和测试结果,并针对测试中出现的不合格项进
行了分析与整改。最终达到了机顶盒测试标准规范中的各项性能指标。
关键词:Android; STB; 网络机顶盒;智能操作系统
系统的网络机顶盒硬件设计
Network set-top box hardware design of system
Abstract
With the application of ’s business demand speedly increasing,
construction and expansion of work is quickly booming. The advantage
work video is more and more obvious with the increase work bandwidth.
Network set-top box transmite the audio and video stream and data stream by .
As a new media forms, the user can directly request program on TV and broadcast
content by it. Network set-top box has high definition, good user experience and rich
resources and so on, which will replace the traditional set-top box and e a
family of audio-visual center.
work set-top box will be the development direction work set-top
box, which inosculate interactive and universal of , high defitinition and
enjoyment of TV as a whole. work set-top box can access the IPTV private
network and the public through the home gateway, and use television and
audio to provide page information browsing, IPTV player, video and audio,
the app store, munication, family media sharing, games and other
interactive services for the end user, which requires the operating system work
set-top box with intelligent, open, universal and powerful third party software support.
But the current main operating system of work set-top box is embedded
LINUX system, in essence, it is a underlying, non-intelligent operating system, so
application software is limited to the developers of LINUX, and patibility is
not good. giant Google Corporation launching Andro
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