搜索
I毕业设计（论文）题目：基于单片机的红外测距系统学院：电子信息学院专业班级：电气工程及其自动化2010级01班指导教师：厉谨职称：讲师学生姓名：柴玉国学号：41003040118西安工程大学本科毕业设计（论文）I摘要现代科学技术的发展，进入了许多新领域，而在测距方面先后出现了激光测距、微波雷达测距、超声波测距及红外线测距。为了实现物体近距离、高精度的无线测量，本文采用红外发射接收模块GP2D12作为距离传感器，单片机作为处理器，编写A/D转换、显示以及与PC机的通信程序，开发了一套便携式的红外距离测量系统，系统可以高精度的实时测量距离，并且将所得距离量通过数码管直接显示出来。本系统结构简单、运行可靠、测量精度高、方便使用，另外本系统形成了一套完善的软硬件开发平台，可以进行扩展、移植和做进一步的开发。关键词：红外测距，STC52单片机，A/D转换，西安工程大学本科毕业设计（论文）IIABSTRACTThedevelopmentofmodernscienceandtechnology,intomanynewareas,hasalaserThedevelopmentofmodernscienceandtechnology,intomanynewareas,hasalaserrangefinderintherangingaspects,rangingofmicrowaveradar,ultrasonicrangingandinfraredranging.Inordertoachievetheobjectsatcloserange,high-precisionwirelessmeasurement,Iusedtheinfraredtransmitterreceivermoduleasthedistancesensor,microcontrollerastheprocessortowritetheA/Dconversion,displayandcommunicationwiththePCprogram,developedawilltopushinfrareddistancemeasurementsystems,high-precisionreal-timesystemcandisplaythemeasureddistance,anddistancemeasuringcanbesentthroughtheserialporttoaPCdisplayprocessing,thesystemstructureissimpleandreliable,smallsize,highaccuracy,easeofuse,whilethissystemtheformationofacompletesetofhardwareandsoftwaredevelopmentplatformcanbeextended,transplantation,andfurtherdevelopment.KEYWORDS:Infrareddistance,STC89C52microcontroller,A/Dconversion西安工程大学本科毕业设计（论文）III目录第一章绪论.........................................................11.1设计背景..........................................................................................................11.2红外线简介......................................................................................................11.3红外传感器概述..............................................................................................21.3.1红外传感器的分类...............................................................................21.3．2红外线传感器的应用.......................................................................5第二章红外测距的方法和原理..........................................62.1几种红外测距原理及选择..............................................................................62.1.1相位测距原理......................................................................................62.1.2PSD测距原理...................................................................................62.1.3带运动机构的双象比较法原理........................................................62.1.4时间差测距法原理............................................................................62.1.5反射能量法原理................................................................................62.1.6三角法红外测距原理...........................................................................62.1.7红外测距原理的选择........................................................................7第三章、红外测距的基本结构及系统框图................................83.1红外测距的过程...........................................................................................83.2红外测距系统框图.........................................................................................94.1单片机最小系统模块....................................................................................114.1.1STC89C52单片机...............................................................................114.1.2单片机的最小系统.............................................................................154.2数据传输模块（程序下载电路）................................................................184.2.1USB转串口........................................................................................184.2.2MAX232芯片....................................................................................194.2.3小结.....................................................................................................214.3电源电路........................................................................................................224.4数码管显示电路............................................................................................23西安工程大学本科毕业设计（论文）IV4.4.174HC595.............................................................................................234.4.2数码管.................................................................................................244.4.3数码管显示电路原理图.....................................................................264.5ADC0832.......................................................................................................264.6GP2D12测距模块.........................................................................................28第五章软件模块设计.................................................305.1程序设计步骤................................................................................................305.2软件设计框图................................................................................................305.3Proteus仿真...................................................................................................31第六章测量精度分析.................................................34附录.............................................................36附录1：测距电路原理图...................................................................................36附录2：测距程序............