《工程实践》论文论文题目智能台灯学生姓名吴杨银石专业自动化班级自动化112指导教师职称副教授二O13年11月摘要生活中，台灯是人们学习工作的必需品，可是人常常会因为忘记关灯离开，导致极大的电能耗费。同时晚上房间较暗，人们摸黑去找台灯开关又显得尤为很困难，甚至有可能发生危险。有了智能台灯，这些问题便迎刃而解。智能台灯能够做到自动亮灭、自动调节亮度的功能。当环境光线暗到一定程度，且周围有人存在的时候，台灯便会自动亮起，并且根据环境自动调节LED管发光强度，从而保护使用者的视力。当使用者离开，或者环境光足够强的时候，台灯会自动关闭，减少电能的消耗，延长台灯的使用寿命。本智能台灯项目使用STC公司生产的STC12C5A60S2单片机的作为核心处理系统，使用RE200B人体红外热释传感器结合BISS0001红外热释处理芯片，构成人体红外感应模块，可以对靠近的人体热红外信号做出反应并反馈信号给单片机处理；光敏电阻作为光敏传感器，作用是采集环境光信号，反馈给单片机不同的模拟电压值，通过STC12系列单片机内部自带的A/D转换功能实现单片机对环境光强弱的判断，从而进一步控制调节LED发光二极管的PWM占空比，调节台灯的发光强度。关键词：红外热释；STC12单片机；光敏电阻；PWM波；A/D转换；LED灯TheintelligentdesklampAbstractLife,studyandworklampisanecessityforpeople,butpeopleoftenforgettoturnoffthelightsbecausetheleftledtoagreatpowerconsumption.Meanwhiledarkroomatnight,peoplegotothedarklampswitchanditisparticularlydifficult,andmayevenbedangerous.Withintelligentlamp,theseproblemswillbesolved.Intelligentlampcandoautomaticlightoff,automaticallyadjustbrightness.Whentheambientlightisdarktoacertainextent,andthepresenceofpeoplearoundwhenthelampwillautomaticallyturnonandautomaticallyadjusttheLEDluminousintensitydependingontheenvironment,thusprotectingtheuser'seyesight.Whentheuserleaves,orwhentheambientlightisstrongenough,lampwillautomaticallyturnofftoreducepowerconsumptionandextendlamplife.TheprojectusesintelligentlampproducedSTC12C5A60S2STCmicrocontrollerasthecoreprocessingsystem,usingRE200BpyroelectricinfraredsensorcombinedwithhumanBISS0001pyroelectricinfraredprocessingchip,constitutehumaninfraredsensormodulecanreacttobodyheatnearinfraredsignalsfeedbacksignaltothemicrocontrollerprocessing;photosensitiveresistanceaslightsensors,theroleistocollectambientlightsignal,thefeedbacktothemicrocontrollerdifferentanalogvoltagevaluebySTC12seriesMCUinternalbuilt-ina/DconversionMCUjudgmentonthestrengthoftheambientlighttofurtheradjusttheLEDlight-emittingdiodecontrolPWMdutycycle,adjustinglampluminousintensity.Keywords:infraredpyroelectric;STC12MCU;photosensitiveresistance;PWMwave;A/Dconverter;LEDlig