单片机之间的短程双向光通信链路的软硬件设计摘要随着遥控设备的普及，传统的开/关已经不能满足市场的需求。人们希望电器在体积小、作方便等的基础上能够拥有更多的功能，而红外遥控的广泛应用及单片机技术的成熟，则使得智能红外遥控系统成为了远程遥控控制设备的发展趋势。本设计采用51单片机作为遥控发射接收芯片，HS0038作为红外一体化接收发射管，在此基础上设计了一个简易的智能红外遥控模拟系统。系统包括接收和发射两大部分。另外本系统有多个按键，可用于扩展控制其他电器。本设计方案基于市场的需求，结合红外遥控设计简单、作方便、成本低廉等特点。关键字：红外遥控；信号调制；编码；解码；AbstractWiththepopularityofremotecontroldevices,traditionalon/offhasnotbeenabletomeettheneedsofthemarket.Peoplehopethatelectricappliancescanhavemorefunctionsonthebasisofsmallsizeandconvenience.Thewideapplicationofinfraredremotecontrolandthematurityofsingle-chiptechnologymaketheintelligentinfraredremotecontrolsystembecomethedevelopmenttrendofremotecontroldevices.Thisdesignadopts51single-chipmicrocomputerastheremotecontroltransmittingandreceivingchip,andHS0038astheinfraredintegratedreceivingandtransmittingtube.Basedonthis,asimpleintelligentinfraredremotecontrolsimulationsystemisdesigned.Thesystemconsistsoftwoparts,receptionandtransmission.Inaddition,thesystemhasmultiplebuttonsthatcanbeusedtoexpandandcontrolotherappliances.Thedesignschemeisbasedontheneedsofthemarket,combinedwiththeinfraredremotecontroldesignissimple,convenient,andlowcost.Keywords:InfraredRemoteControl;SignalModulation;Encoding;Decoding。目录摘要............................................................2Abstract............................................................31绪论..............................................................11.1课题设计目的及意义..........................................11.2红外遥控的设计思路..........................................12课题的方案设计与论证..............................................22.1红外编码方案................................................22.2硬件系统设计架构............................................32.3系统功能需求................................................63系统的硬件结构设计................................................63.1AT89C51系列单片机功能特点...................................63.2红外发射电路...............................................103.3红外检测接收电路...........................................113.4光电耦合控制电路...........................................123.5电源电路设计...............................................133.6LCD1602显示部分的设计.....................................143.7键盘设计...................................................164系统软件的设计...................................................184.1定时/计数器应用............................................184.2遥控码的发射...............................................214.3红外接收...................................................234.4按键抖动问题...............................................264.5系统的软硬件的调试.........................................27结论.............................................................29参考文献...........................................................30附录............................................................31附录1：发射程序................................................31附录2：接收程序................................................37附录3：红外发射电路图........
