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。本系统采用AT89S51单片机作为核心,抢答组数可以在六组以内任意使用。控制系统的三个模块分别为:单片机最小系统、显示模块、抢答开关模块。AbstractWiththerapiddevelopmentofelectronictechnology,thecontrolsystembasedonSCMhasbeenwidelyusedinindustry,agriculture,electricity,electronics,intelligentbuildings,industry,micro-computersembeddedcontrolsystemasthemainandcore,insteadofthetraditionalcontrolSystemofconventionalelectroniccircuits.Atthesametimethedevelopmentofintelligentbuildingsandmaturity,butalsobasedonthelightingcontrolsystemMCUandpopularityofapplicationlaidasolidfoundation.PointsforelectronicsmartQiangdaQiangdaintheprocess,inordertoknowwhichgrouporwhichoneplayertoanswer,wemustdesignasystemtocompletethistask.IftheQiangda,relyonthevisualisverydifficulttodeterminewhichgrouptoanswer.SCMsystemusedtodesignQiangda,bringingtheaboveproblemsareresolved,evenifthetwogroupsQiangdathedifferenceintimeafewmicroseconds,whichcanalsobedistinguishedgroupofpriorityanswer.Qiangdagroupofsiscanwithinthearbitraryuseofthesystemdesignedtobemodularformofanine-pinplugstoconnectthesystemworkingprincipleofthesystemusedAT89S51SCMasacore.Controlsystemofthefivemodulesare:MCUminimumsystem,modules,Qiangdaswitchmodules.目录第一章绪论………………………………………………………..31.1电子智能抢答器的特点………………………………………………………………………31.2电子智能抢答器的发展趋势…………………………………………………………………3第二章单片机介绍………………………………………………..32.1单片机概述………...