目录艘......................................................................................................................IIAbstract..................................................................................Ill1雜.............................................................................................11.1研究目的和意义及国内外发展现状..................................................11-2基木内容及章节安排...............................................................22总体方案设计.................................................................................32.1控制器智能项目........................................................................32.2系统总体结构规划......................................................................43系统硬件设计.................................................................................53.189C51单片机及相关电路...............................................................53.1.1晶振电路........................................................................63.1.2复位电路........................................................................63.1.3时钟电路........................................................................73.1.4电源电路........................................................................93.2步进电机...............................................................................93.3键盘/显示接U电路....................................................................113.3传感器................................................................................133.4信号调理电路.........................................................................143.4.1放大滤波电路..................................................................143.4.2A/D转换......................................................................144系统软件设计................................................................................164.1主程序软件设计.......................................................................164.2主要功能子程序设计...................................................................174.2.1步进电机稈序设计..............................................................174.2.3键盘程序设计..................................................................184.2.4定时程序设计..................................................................195总结与展望..................................................................................21##嫌...........................................................................................22麵.............................................................................................23摘要本电路根据办公和生活环境需要，釆用AT89C51单片机控制系统，利用P3口的特殊功能勹P1口的空闲模式和掉电模式，根据其不同控制模式，实现半自动控制、自动控制、定时控制的相互转换控制窗帘机。该设计包括光电开关电路、系统主控模块、电源转换电路、保护电路等组成，可实现窗帘自动升降。关键词：单片机；定时控制；光电开关；步进电机ITTAbstractAccordingtotherequirementsofofficeandlivingenvironment,thisdesignmadeuseoftheSCM(SingleChipMicyoco)controllingsystemofAT89C51,thespecialfunctionatP3,theidlenessmodeandlose-electricmodeatPI.Basedonthedifferentcontrollingmode,werealizetocontrolthecurtainmachinebymutualtransformationofsemiautomaticandautomaticcontrollingandinfraredremoter.Thisdesignismadeupofinfraredre...
