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1、摘要本研究针对教室灯光的控制方法，尤其是教室灯光的智能控制方面的发展现状，分析了教室灯光智能控制的原理和实现方法，提出了基于单片机的教室灯光智能控制系统的设计思路，并在此基础上开发了智能控制系统的硬件装置和相应软件。该系统以AT89C52单片机作为控制装置的智能部件，采用热释红外人体传感器检测人体的存在，采用光敏三极管构成的电路检测环境光的强度;根据教室合理开灯的条件，系统通过对人体的存在信号和环境光信号的识别和智能判断，完成对教室照明回路的智能控制，避免了教室用电的大量浪费。系统还具有多种报警功能;同时还采用了软/硬件的“看门狗”技术等抗干
2、扰措施。单片机软件采用汇编语言编制，采用模块化结构设计、条理清晰、通用性好，便于改进和扩充。该系统具有体积小，控制方便，可靠性高，专用性强，性价比合理等优点，可以满足各类大、中专院校教室灯光控制的要求，很大程度的达到节能目的。关键词:人体；红外线；传感器；自动控制；热释电50AbstractCurrentlylightintelligentcontrolsystemsarenotefficientlyusedintheclassroom.Inordertoimprovethesystem,basedoncontrolandcurrentmet
3、hodsofhowtokeepcontrol，developingintelligentclassroomlightcontrolsystemanddevelopedthehardwareandsoftwaresystem.ThisclassroomlightintelligentcontrolsystemthetheoryofthelightputforwardmethodsofonthebasisofAT89C52isdeveloped,whichmachineofAT89C52isamajorpart,andtheenvironment
4、ofdevelopmentisbetterthanbefore.Thissystemcansatisfythefollowingfunctions,suchascontrollingthecircuitofillumination,testingandprocessingdaylightsignal,testingandprocessingthesignalofhumanbodythatilluminatesthebacktrackexists,reportingtothewarningdevices,etc.Inordertosatisfy
5、thesefunctions,thesystemadoptedthehomologousmethodsrespectively,andtothegearingofthesystem,analyzinghowtoinstall，testandrunthesystem.Themicrocontrollersoftwarewasdevelopedbasedonassemblelanguage.Assemblelanguageisonekindofstructuredprogramlanguages,ithasmoreadvantagesthanot
6、herhigh-levellanguages.Assemblelanguageadoptsbuildingblockdesign.Itscommonalityisverygoodandeasytoimproveandexpand.Itcouldbeusedtodeveloplarger一scalesystemwithmoreperfectperformance.Atthesametime,theanti-jammingtechnologies,suchaswatchdog,arenecessarywhendevelopinghardwarea
7、ndsoftware.Thissystemhadmanyadvantages.Forexample,thephysicalvolumewassmall，thesystemwasconvenientlycontrolled,thecredibilitywashigh,theappropriationwasstrong,anditspriceproportionwasideal,etc.Theexperimentprovedthatthesystemcansatisfythecontrolcommandoftheclassroom'slightd
8、evice,soitcouldlargelyreducetheconsumingofenergyresources.Keywords:Humanbody,infra
