课程设计（论文）-单片机的红外遥控系统

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1、摘要红外遥控技术是红外技术、红外通讯技术和遥控技术的结合。红外遥控的特点是不影响周边环境、不干扰其他电器设备，抗干扰性强，具有光波的直线传播特性，不易产生相互间的干扰，是很好的信息传输媒体。为了进一步学习了解红外遥控，我们决定基于51学习板，设计制作一个红外遥控器，可分析解读并显示红外信号。本设计综合运用单片机STC89C51的中断系统、定时器/计数器的相关知识对信号进行编码和解码。在发射端，通过三极管将调制好并已加在38KHZ载波上的信号进行放大，再通过发光二极管发射出去。在接收端，通过红外一体接收头接收信号，将其送入单片机进行解码，并最后在LCD屏上显示结果。在经过软件、硬件的正确

2、调试后，在液晶屏上正确显示了输入红外信号的信息。实验结果验证了本装置设计的合理性。关键词：红外遥控AT89C51编码和解码AbstractInfraredremotecontroltechnologyisinfraredtechnology,infraredremotecontroltechnology,communicationtechnologyandthecombination.Infraredremotecontrolfeatureisnotaffectingthesurroundingenvironment,withoutinterferingwithotherelectri

3、calequipment,interferenceisstrong,withalinearpropagationcharacteristicsoflight,easytoproducemutualinterference,isagoodinformationtransmissionmedia.Tolearnmoreaboutinfraredremotecontrol,wedecidedtostudybasedon51plates,designedaninfraredremotecontrol,caninterpretanddisplaytheinfraredsignalanalysis

4、.ThedesignoftheintegrateduseofSTC89C51interruptsystem,timers/countersknowledgeofthesignalencodinganddecoding.Inthetransmitter,throughthegoodandthemodulationtransistorhasbeenaddedto38KHZcarriersignalamplification,andthentransmittedoutthroughthelight-emittingdiodes.Atthereceiver,onereceiverviainfr

5、aredsignalreceiverwilldecodeitintothemicrocontroller,andthefinalresultsdisplayedontheLCDscreen.Afterthesoftwareandhardwaredebuggingcorrectly,theLCDscreenontherightshowstheinfraredsignalinputinformation.Experimentalresultsdemonstratethereasonablenessofthedevicedesign.38目录1前言······················

6、·················22设计原理···································32.1发射部分设计原理························32.2接收部分设计原理························33、整体方案设计·································43.1整体方案设计····························43.2方案论证································53.3方案的比较与选择·························54、单元模块设计

7、···································54.1电源电路··································54.2、单片机最小系统··································64.3、键盘电路·················································74.4、EEPROM电路······························