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1、Android4.0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、512MBDDR和2GBflash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PCBEditor设计出了系统的PCB图。由于本机顶盒采用了Android4.0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
2、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Android4.0系统的网络机顶盒硬件设计Networkset-topboxhardwaredesignofandroid4.0systemAbstractWiththeapplicationofInternet’sbusinessdemandspee
3、dlyincreasing,constructionandexpansionofbroadbandnetworkisquicklybooming.Theadvantageofnetworkvideoismoreandmoreobviouswiththeincreaseofnetworkbandwidth.Networkset-topboxtransmitetheaudioandvideostreamanddatastreambyInternet.Asanewmediaforms,theusercandirect
4、lyrequestprogramonTVandbroadcastcontentbyit.Networkset-topboxhashighdefinition,gooduserexperienceandrichresourcesandsoon,whichwillreplacethetraditionalset-topboxandbecomeafamilyofaudio-visualcenter.Opennetworkset-topboxwillbethedevelopmentdirectionofnetworks
5、et-topbox,whichinosculateinteractiveanduniversalofInternet,highdefitinitionandenjoymentofTVasawhole.Opennetworkset-topboxcanaccesstheIPTVprivatenetworkandthepublicInternetthroughthehomegateway,andusetelevisionandaudiotoprovidepageinformationbrowsing,IPTVplay
6、er,Internetvideoandaudio,theappstore,visualcommunication,familymediasharing,gamesandotherinteractiveservicesfortheenduser,whichrequirestheoperatingsystemofnetworkset-topboxwithintelligent,open,universalandpowerfulthirdpartysoftwaresupport.Butthecurrentmainop
7、eratingsystemofthenetworkset-topboxisembeddedLINUXsystem,inessence,itisaunderlying,non-intelligentoperatingsystem,soapplicationsoftwareislimitedtothedevelopersofLINUX,andthecompatibilityisnotgood.InternetgiantGoogleCorporationlaunchingAndroid4.0systemonOctob
8、er19,2011makestheimplementationofintelligentnetworkset-topboxtobecometruth.Aseveryoneknows,AndroidisasoftwareplatformandoperatingsystembyGoogledevelopmentbasedonLinuxkernel,andthelatestversionof
