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哈尔滨华德学院毕业论文-I-摘要利用MCS-51作为硬件平台，在同一个平面内，使用NE555发出固定频率的声波，并且使用三个固定频率信号接收器来接收声音，在发第一次声音的时候开始计时，在第一个探头收到时截止。由于声音是由物体振动产生，正在发声的物体叫声源。声音以波的形式传播。声音是声波通过任何物质传播形成的运动，并且声音在空气（15℃）中的速度是340m/s，所以可以用声音来计算出发声器与接收探头之间的距离，按上述方法做三次，经过计算，最后确定出发生器位置。本次设计是基于MCS-51单片机的声控定位系统的设计，硬件部分主要是MCS-51单片机。该系统采用了MCS-51作为控制电路核心。单片机能够对采集的数字信号进行处理和判断，实现用声音定位出发声器的位置。该设计的主要任务是根据外部控制和输入固定频率的声音信号量，这样可以实现对于一个物体的位置的确定。关键词MCS-51平台；结构化程序语言；声音；数字信号采集哈尔滨华德学院毕业论文-II-TheVoicepositioningsystembasedonArduinoAbstractMCS-51hardwareplatformusing,inthesameplane,usingafixed-frequencysoundwavesissuedNE555andusingthreefixedfrequencysignalreceiverforreceivingsound,thesoundissuedwhenthefirststarttime,closingthefirstprobewhenclosed.Sincethesoundisproducedbyvibratingobjects,objectsbeingvocalsoundssources.Soundpropagationintheformofwaves.Soundisthemovementtoformsoundwavespropagatethroughanysubstance,andthespeedofsoundinair(15℃)inthe340m/s,soitcanbeusedtocalculatethedistancevoicesoundwaybetweentheprobeandthereceiver,threetimesbytheabovemethod,aftercalculation,thefinalizationofthegeneratorlocation.ThisdesignisbasedontheMCS-51microcontrollervoicepositioningsystemdesign,hardwaremainlybytheMCS-51microcontroller.ThesystemusestheMCS-51asacontrolcircuitcore.Microcontrollerfordigitalsignalprocessingandcollectionofjudgments,implementersoundwithsoundlocalizationstartingposition.Themaintaskofthedesignisbasedonanexternalcontrolinputandtheamountoffixed-frequencysoundsignal,thiscanbeachievedforthedeterminationofthepositionofanobject.KeywordsMCS-51platform；StructuredProgrammingLanguage；Sound；Digitalsignalacquisition哈尔滨华德学院毕业论文-III-目录摘要…….....................................................................................................IAbstract......................................................................................................II第1章绪论...............................................................................................11.1选题目的和意义..............................................................................11.2国内外现状......................................................................................11.3论文研究内容..................................................................................2第2章开发环境及主要元器件................................................................32.1开发工具..........................................................................................32.1.1MCS-51简介..............................................................................32.2使用的主要元器件..........................................................................72.2.1固定频率声音识别模块............................................................72.2.2LM567.....................................................................................102.2.3固定频率发声器......................................................................122.2.4NE555.......................................................................................132.2.5LCD液晶显示器......................................................................152.3本章小结........................................................................................17第3章设计与实现.................................................................................183.1定位机理........................................................................................183.1.1强度差.....................................................................................183.1.2时间差.....................................................................................183.1.3音色差.....................................................................................183.1.4位相差.....................................................................................183.2系统基本流程图............................................................................193.3程序设计思想：............................................................................203.3.1电平触发方式.........................................................................203.3.2整体平台设计.........................................................................213.3.3定位算法（一）：..................................................................213.3.4定位算法（二）：..................................................................223.3.5显示设计.................................................................................23哈尔滨华德学院毕业论文-IV-3.4本章小结........................................................................................25第4章系统测试优化.............................................................................264.1测试基本内容................................................................................274.1.1测试方法与仪器......................................................................274.1.2测试数据完整性......................................................................274.1.3测试结果分析.........................................................................274.2系统优化........................................................................................284.2.1程序优化.................................................................................284.2.2实体优化.................