摘要在科学技术迅速发展的现代社会，世界各种领域都得到了前所未有的提高，电子信息技术显得尤为突出。这些电子技术都投入到了生产中和生活中，提高人们的生活质量。随着集成电路技术的高速发展，近年来开发了许多的单片机产品单片机使用在越来越多的电子产品中，投入到工业和生活中。近年来，电子电器飞速的发展，人们的生活水品有很大的提高，为人们提供了舒适与方便，但不法分子的有段也越来越高端，以前的老式防盗手段已经无法防御现代化的高科技产物。如何保护自身的财产安全受到了广大人名的关注。于是出现防盗报警系统，应用在了人们的生活中为人们提供了安全。在该论文中我们将介绍一款基于STC89C51的红外线语音报警系统。接下来我们将阐述此红外语音报警系统的设计方案。并介绍各个模块的的电路组成、工作原理及各个模块用到的相关芯片特性。详细讨论其中的串口通信模块的控制与组成。最后介绍该系统的硬件测试和软件的调试方法。关键字：STC89C51，串口通信模块，红外线防盗报警器ABSTRACTInmodernsociety,therapiddevelopmentofscienceandtechnology,theworldinvariousfieldshavebeenanunprecedentedincreaseofelectronicinformationtechnologyisparticularlyprominent.Theseelectronictechnologiesintotheproductionandlife,improvethequalityofpeople'slives.Withtherapiddevelopmentofintegratedcircuittechnologyinrecentyearsdevelopedanumberofsingle-chipproducts.SCMusingmoreandmoreelectronicproducts,intotheindustrialandlife.Inrecentyears,therapiddevelopmentofelectronicandelectricalappliances,waterforpeople'sliveshavegreatlyimproved,providingpeoplewithacomfortableandconvenient,butcriminalsareincreasinglyhigh-endsegment,old-fashionedanti-theftmeanspreviouslybeenunabletodefensemodernizationhigh-techproduct.Howtoprotecttheirpropertybythemajorityofthenamesofattention.Sothereburglaralarmsystem,usedinpeople'slivestoprovidepeoplewithasafe.Inthispaper,wewillintroduceaninfrared-basedSTC89C51voicealarmsystem.Nextwewillexplainthisinfraredvoicealarmsystemdesign.Anddescribeseachmodulecircuitcomposition,workingprincipleandcharacteristicsrelatedtothechipusedineachmodule.Controllingthecompositionofwhichisdiscussedindetailwiththeserialcommunicationmodule.Finally,themethodofthesystemhardwaredebuggingandsoftwaretesting.KeyWords:STC89C51,serialcommunicationmodule,infraredburglaralarm目录第1章引言..........................................................11.1选题背景..........................................................11.2课题内容..........................................................1第2章系统程序设计..................................................22.1系统设计方案......................................................22.2各个功能模块介绍..................................................32.2.1单片机最小系统.................................................32.2.2串口通信模块...................................................52.2.3语音模块.......................................................62.2.4键盘蜂鸣器模块.................................................82.2.5温度采集模块..................................................102.2.6继电器控制模块................................................122.2.7信号采集模块..................................................142.2.812864液晶显示模块.............................................16第3章信号采集模块的硬件和软件的设计...............................183.1信号发射模块的硬件设计..........................................183.1.1器件和原理....................................................193.1.2应用实例...............................