基于51单片机的智能台灯的设计与应用ver9

编号本科生毕业设计（论文）题目：基于51单片机的智能台灯的设计与应用物联网工程学院微电子学专业学号0301100110学生姓名谢益祺指导教师梁海莲讲师二〇一四年六月摘要I摘要随着社会在不断进步，高科技含量决定着产品发展的新趋势和前景，智能化技术在电子产品领域的应用意义深远.电子产品的快速发展，家用电器也越来越智能化，目前已经应用于实际中的有智能洗衣机，智能空调，智能电磁炉等，而所用的智能化家用电器都用一个共同的特点，都是利用单片机作为中央控制单元.结合了单片机的智能家用电器和普通家用电器相比，使用更方便，安全可靠性也更高，效率更高，最重要的是它们为能源节约提供巨大的帮助.智能台灯以专门感应人体红外信号的红外传感器为基础，这意味着仅当有人的时候，红外传感器才输出一个信号，经放大处理后达到单片机的输入门限电压，单片机开始运行，台灯自动点亮.当人离开的时候，单片机控制台灯自动关闭，以达到节约用电的目的.此外，单片机内的计时器将会计时一小时，在此之前如果人未离开，计时结束后，台灯上的蜂鸣器将会响起，提醒使用者应该离开休息一会儿，同时台灯将自动关闭，这个功能可以帮助保护使用者的视力.关键词：单片机；智能台灯；红外传感器；信号放大AbstractIIABSTRACTWiththeprogressofsociety,thedevelopmentprospectofnewproductsdependsonitshigh-technologycontent.Aselectronicproductsbecomemoreandmoreadvanced,somedomesticapplianceseems‘intelligent’tosomeextent,andsometechnologyhasbeenappliedintoreallifeatpresent,suchassmartwashingmachine,smartair-conditionandintelligentinductioncooker,etc.Allofthemhaveacommoncharacteristic,thatis,theyalluseaMCU（MicroControllerUnit）astheir‘brain’.ComparingwiththosehouseholdapplianceswhichhavenoMCU,theyaremoreconvenient,safeandefficient.Moreimportant,theymakegreatefforttotheprojectofelectricalenergysaving.Theintelligentdesklampdependonakindofinfraredsensorwhichcanperceivehumanbeings,thatmeans,itwilloutputasignalwhenthereissomeonenearit,thissignalwillbeamplifiedandreachthethresholdvoltagetotriggertheMCU,andthen,thedesklampwillbeautomaticallyopened.Whenyouleave,thedesklampwithbeshutdownbyMCU,thiswillhelpsavingelectricalenergy.Besides,theMCUwilltimingforanhour,ifyouhaven’tleftwhenthattimeisup,thebuzzeronitwillremindyoutotakearest,andthelightwillautomaticallyshutdownatsametime.Thisfeaturecanprotectyoureyesight.Keyword:MCU;IntelligentDeskLamp;InfraredSensor;SignalAmplification目录i目录第1章绪论.............................................................................................................11.1研究课题的意义..................................................................................................................11.2智能家电的历史和发展概况..............................................................................................11.3本课题的研究内容、研究方法和实施方案......................................................................2第2章硬件电路系统设计.....................................................................................52.1硬件系统的架构..................................................................................................................52.2中央控制模块......................................................................................................................52.2.1STC89C52RC型单片机.....................................................................................................................62.2.2数码管扫描电路................................................................................................................................92.2.3蜂鸣器和发光二极管回路..............................................................................................................102.3信号采集放大电路设计....................................................................................................112.3.1红外传感器RE200B........................................................................................................................112.3.2运算放大电路...................................................................................................................................112.3.3信号处理电路..................................................................................................................................14第3章软件系统设计与仿真...............................................................................153.1Keil编程软件.....................................................................................................................153.2单片机程序设计................................................................................................................183.2.1数码管动态扫描程序......................................................................................................................183.2.2中断程序..........................................................................................................................................203.3仿真测试............................................................................................................................21第4章结论与展望...............................................................................................234.1结论....................................................................................................................................234.2展望....................................................................................................................................23参考文献.................................................................................................................24致谢.........................................................................................................................25附录.........................................................................................................................26基于51单片机的智能台灯的设计与应用1第1章绪论1.1研究课题的意义随着科技的发展，人们的生活水平不断提高