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1、本科毕业设计无线“叮咚”电子门铃的设计16摘要当今社会，随着无线技术、网络技术和微电子技术的飞速发展，以及人民生活水平的迅速提高，大家对周围生活居住环境的安全、方便自然提出了更高的要求，尤其是在智能化的住宅中，现在的社区、公寓都存在智能化管理系统，人们迫切需要一种使用方便、安全可靠等集优点于一身的智能化门铃产品，所以无线电子门铃系统的设计成为我的这个课题的研究目标。本文介绍了一种新型遥控叮咚门铃,它采用具有编码功能的遥控发射-接收专用集成电路,结合高音质叮咚音乐芯片做声源,采用先进的脉码调制发射和石英晶振稳频技术，接收是由解调、放大、整形和声响电路组成
2、，利用PT2262和PT2272集成芯片和各类元器件对无线电子门铃进行设计电路并且完成各种元器件的焊接工作，并对组装好的门铃产品进行调试，使其达到最佳预期效果,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,其接收电路连同音乐芯片为一体,可以随意放置在室内有220V交流电源的地方,具有广阔的发展前景。关键词：发射板；接收板；无线电子门铃；PT2262；PT227216AbstractIntoday'ssociety,alongwiththewire
3、lesstechnology,networktechnologyandmicroelectronicstechnologyrapiddevelopment,andthepeople'sstandardoflivingincreasedquickly,everyoneonthesurroundinglivingenvironmentalsafety,convenientnatureputforwardhigherrequest,especiallyinintelligentresidence,nowcommunity,thereareintelligen
4、tmanagementsystemapartment,peopleindesperateneedofaconvenience,safetyandreliabilityofintegratingthemerits.soonintelligentdoorbellproduct,sowirelesselectronicdoorbellsystemdesignbecomemythistopicresearchgoal.Thispaperintroducesanewtypeofremotecontrolding-dongdoorbell,anditadoptsr
5、emotewithcodingfunctionslaunch-receiveapplication-specificintegratedcircuit,combinedwithhighqualityding-dongmusicchipdosoundsources,adoptsadvancedpulsecodemodulationlaunchandvibrationfrequencytechnology,fitsinstabilitybydemodulation,receivingisamplified,plasticandsoundcircuitcom
6、position,PT2262andPT2272integratedchipsusingandvariouskindsofcomponentsdesignofwirelesselectronicdoorbellandfinishallkindsofcomponentsofthecircuit,andweldingworkdebuggingassemblygoodthedoorbellproducts,makeitsbestexpectedeffect,becomeakindofvoice,thedoorbellbuttonandsoundsongsfr
7、omattachment,installationconveniencebetweennewremotehighqualitythedoorbell.Thedoorbellwithlowpowerconsumption,circuitissimple,reliable,stronganti-jammingcapability,remotedistanceadvantagessuchassmallvolume,circuit,thereceivingcircuitforanorganicwhole,alongwithmusicchipscanbeplac
8、edatwillinindoorhave220Vacpowerofplace,hasbroad
