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1、声光显示智力竞赛抢答器摘要:随着电子技术的飞速发展,基于单片机的控制系统已广泛应用于工业、农业、电力、电子、智能楼宇等行业,微型计算机作为嵌入式控制系统的主体与核心,代替了传统的控制系统的常规电子线路。同时楼宇智能化的发展与成熟,也为基于单片机的照明控制系统的普及与应用奠定了坚实的基础。电子智能抢答计分器在抢答过程中,为了知道哪一组或哪一位选手先答题,必须要设计一个系统来完成这个任务。如果在抢答中,靠视觉是很难判断出哪组先答题。利用单片机系统来设计抢答器,使以上问题得以解决,即使两组的抢答时间相差几微秒,也可分辨出哪组优先答题。抢答组数可以在八组以内任意使用,本系统设计为模块形式采
2、用九针插头进行连接,系统工作原理本系统采用AT89S51单片机作为核心。控制系统的五个模块分别为:单片机最小系统(六位并行数码显示、4*4矩阵式键盘)、显示模块、显示驱动模块、抢答开关模块、音乐音频输出模块。关键词:单片机;矩阵式键盘;显示;驱动;抢答Abstract:Withtherapiddevelopmentofelectronictechnology,thecontrolsystembasedonSCMhasbeenwidelyusedinindustry,agriculture,electricity,electronics,intelligentbuildings,in
3、dustry,micro-computersembeddedcontrolsystemasthemainandcore,insteadofthetraditionalcontrolSystemofconventionalelectroniccircuits.Atthesametimethedevelopmentofintelligentbuildingsandmaturity,butalsobasedonthelightingcontrolsystemMCUandpopularityofapplicationlaidasolidfoundation.Pointsforelectro
4、nicsmartQiangdaQiangdaintheprocess,inordertoknowwhichgrouporwhichoneplayertoanswer,wemustdesignasystemtocompletethistask.IftheQiangda,relyonthevisualisverydifficulttodeterminewhichgrouptoanswer.SCMsystemusedtodesignQiangda,bringingtheaboveproblemsareresolved,evenifthetwogroupsQiangdathediffere
5、nceintimeafewmicroseconds,whichcanalsobedistinguishedgroupofpriorityanswer.Qiangdagroupofeightcanwithinthearbitraryuseofthesystemdesignedtobemodularformofanine-pinplugstoconnectthesystemworkingprincipleofthesystemusedAT89S51SCMasacore.Controlsystemofthefivemodulesare:MCUminimumsystem(sixparall
6、eldigitaldisplay,4x4matrixkeyboard),modules,displaydrivermodule,Qiangdaswitchmodules,music,audiooutputmodule.Keywords:SCM,modules,displaydrivermodule,Qiangdaswitchmodules.Opinionsandsuggestionsontheparty'smasslineeducationalpracticeAccordingtothecentralandprovincial,municipalunifieddeployment,
7、accordingtomunicipalPartycommittee"aboutcarryingouttheparty'smasslineeducationalpracticeactivityinthecity'simplementationopinions,thespiritoftheparty'smasslineeducationalpracticeactivitiesfrom20**inJanuaryto99months,carriedoutatalllevel