教室灯光自动控制系统

A教室灯光自动控制系统TheAuto-controlSystemofClassroomLightsI目录绪论..........................................................................................................................11教室灯光自动控制整体描述..............................................................................31.1灯光控制总体思想....................................................................................31.2灯光控制方案分析....................................................................................42硬件电路设计......................................................................................................52.1控制核心模块............................................................................................52.2教室人数检测模块....................................................................................62.2.1热释电红外传感器的原理..............................................................62.2.2教室人数检测模块的功能实现......................................................82.3教室光照强度检测模块............................................................................92.3.1光敏三极管的选择及功能简述......................................................92.3.2光敏三极管检测光强原理及其模拟形式....................................102.4灯控模拟模块..........................................................................................112.5液晶显示和报警模块..............................................................................113系统程序设计....................................................................................................133.1系统主程序流程图..................................................................................133.2系统子程序流程图..................................................................................143.2.1按键控制流程图............................................................................143.2.2液晶显示控制流程图....................................................................154系统仿真............................................................................................................16结论........................................................................................................................17参考文献................................................................................................................18致谢.......................................................................................错误!未定义书签。II插图索引图1设计方案流程图...................................................................................................3图2系统方框设计图...................................................................................................4图3单片机最小系统...................................................................................................5图4双探测元热释电红外传感器...............................................................................6图5热释电信号调节电路...........................................................................................7图6BISS0001外引线连接图......................................................................................8图7红外检测模块示意图...........................................................................................9图8感光信号采集模拟电路.....................................................................................10图9灯控区模拟.........................................................................................................11图10液晶显示图.......................................................................................................12图11系统主流程图...................................................................................................13图12按键控制流程图...............................................................................................14图13显示子程序流程图...........................................................................................15图14系统整体仿真图...............................................................................................16III教室灯光自动控制系统摘要本研究针对教室灯光的控制现状及用电大量浪费的现象，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的设计思路。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。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】：教室灯光控制热释红外传感器光敏电阻AT89C52IVTheAuto-controlSystemofClassroomLightsAbstractThisstudyofintelligentcontrolclassroomlamplight,analyzesthecurrentsituationofthedevelopmentoftheclassroomlightofintelligentcontrolprincipleandmethod,isproposedbasedonsingle-chipmicrocomputerintelligentcontroloftheclassroomlamplightdesign.ThissystemtoAT89C52singlechipcomputerascontroldeviceofintelligentparts,adoptsheatreleaseinfraredsensordetectsthereleaseofhumanexistenceandadoptsphotoconductiveresistanceconstitutescircuittestingenvironmentlightintensity.Accordingtotheclassroomlightconditionsandthemeasuredthesignalofhumanbodysystemandambientlight,thesystemcanmakereasonableandintelligentjudgmentandthencontrolstheworkofclassroomlightingcircuit.Itisaeffectivewaytoavoidtheclassroomofwasteelectricity.Smallvolume,convenientcontrol,highreliability,highspecificityandpricereasonablemakethissystemsatisfytheadvantagesoflarge,secondarytechnicalschoolsclassroomlightcontrolrequirementsand