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基于51单片机的无线遥控音乐门铃设计摘要随着微电子技术、无线技术和网络技术的飞速发展以及人们生活水平的大幅度提高，人们对居住环境的安全、方便提出了越来越高的要求，尤其是在智能化住宅中，人们迫切需要一种不仅安全可靠、使用方便等优点于一体的智能门铃产品，因此无线遥控音乐门铃系统的设计成为本课题研究的目标。本文介绍了一种新型无线遥控音乐门铃,它采用具有编码功能的超再生无线模块，结合单片机利用中断产生的方波,成为一种声音动听、门铃按钮与声源之间免去连线、安装方便的新型遥控高音质门铃.这种门铃具有功耗低,电路简单可靠,抗干扰能力强,遥控距离远,电路体积小等优点,其接收电路连同主控机喇叭等于一体，可以随意放置在室内有220V交流电源的地方,本设计还可以用电池供电，更加方便！还可变换门铃各种音乐，使声音悦耳动听，满足不同人的生活需要，具有广阔的发展前景.随着微电子技术、无线技术的发展，由开始的按钮门铃到现在的可视对讲门铃、智能数码门铃，发展速度不断飚升。针对目前世界范围内经济严峻形式和我国经济运行面临新的不确定性因素，如何根据急剧变化的外部经济环境调整企业发展规划和经营方针，成为摆在我国无线音乐门铃企业面前亟待解决的问题。在全球金融危机形势下，无线遥控门铃企业的发展需要我们不断研究、不断创新，向着产品智能化、数字化、信息化方向发展。本设计采用STC89C51单片机作为主控制器，外部加上三极管驱动放音设备，以此来实现音乐播放的硬件电路，无线模块实现无线的链接，实际应用中更易安装，是家居首选，性能稳定，遥控距离远，功耗低等特点。关键词无线遥控音乐门铃单片机AbstractWiththerapiddevelopmentofmicroelectronictechnology,wirelesstechnologyandthenetworktechnologyandtheimprovementofpeople'slivingstandard,putforwardhigherrequestpeopletosafety,convenientlivingenvironment,especiallyintheintelligentresidential,peopleurgentlyneedanotonlysafeandreliable,easytouseandotheradvantagesofintelligentdoorbelltheproduct,sothedesignofwirelessremotecontrolmusicdoorbellsystemhasbecometheaimoftheproject.Thispaperintroducesanewtypeofwirelessremotecontrolmusicdoorbell,itadoptssuperregenerationwirelessmodulewithencodingfunction,combinedwithSCMinterruptgenerationFangBo,becomeasound,thedoorbellbuttonandthesoundsourcefromthenewremoteconnection,convenientinstallationandhighqualitydoorbell.Thisbellhastheadvantagesoflowpowerconsumption,simpleandreliablecircuit,stronganti-interferenceability,longdistanceremotecontrol,hastheadvantagesofsmallvolume,thecircuit,receivingcircuitandthemaincontrolmachinehornisequaltoone,canbeplacedona220VACpowersupplyinindoorplaces,thisdesigncanalsobepoweredbybatteries,moreconvenient!Canalsotransformthedoorbellmusic,makeapleasantvoice,tomeetdifferentneedsoflife,withbroadprospectsfordevelopment.Withthedevelopmentofmicroelectronictechnology,wirelesstechnology,bythebuttondoorbellbegantovisualdoorbell,nowtheintelligentdigitaldoorbell,soaringdevelopmentspeed.InviewofthecurrentworldwideeconomicsevereformandoperationofChina'seconomyisfacingnewuncertainties,accordingtotherapidlychangingexternaleconomicenvironment,adjustenterprisedevelopmentplanningandmanagementpolicy,hasbecomeanurgentinfrontofwirelessmusicdoorbellenterprisesofChina'sproblems.Inthesituationoftheglobalfinancialcrisis,wecontinuetoresearch,innovationrequiresthedevelopmentofwirelessremotecontroldoorbellenterprise,towardtheproductintelligent,digital,information-baseddirectiondevelopment.ThisdesignusesSTC89C51microcontrollerasthemaincontroller,externalandtransistordriveplaybackdevice,soastorealizethehardwarecircuitofmusicplayback,wirelessmoduletorealizewirelesslinks,moreeasytoinstallinthepracticalapplication,isthepreferredhomefurnishing,stableperformance,longdistanceremotecontrol,lowpower.KeyWords:Wirelessremotecontroldoorbellmusicchip目录摘要.......................................................................................................................................-1-Abstract..................................................................................................................................-2-第一章绪论.........................................................................................................................-1-1.1课题选题背景...............................................................................................................-1-1.2国内外研究状况...........................................................................................................-1-1.3研究无线遥控音乐门铃的意义...................................................................................-2-第二章设计任务.................................................................................................................-2-第三章硬件电路设计.........................................................................................................-3-3.1系统总体框图................................................................................................................-3-3.2电源电路设计.............................................................................................................-4-3.3发射电路设计...............................................................................................................-4-3.4接收电路设计...............................................................................................................-6-3.5主控电路设计...............................................................................................................-7-3.6放音驱动电路设计.....................................................................................................-11-第四章系统软件设计.......................................................................................................-13-4.1单片机发声概述..........................................................................................................-13-4.1.1音调................................................................................................................-13-4.1.2节拍.................................................................