1基于单片机的温度补偿超声波测距的设计与实现摘要：超声波是指频率大于20KHZ的声波。正是由于超声波测距传感器拥有卓越的功能、价格便宜和便捷的使用能力，它在很多系统比如说现实生活中的自动导航、安全驾驶以及城市交通管理等系统中运用广泛。液位检测已应用于河流、油井和仓库。计算简单和能够实现及时控制的特点使得超声波检测更加迅速和方便，并且它的测量精确度也可以满足实际行业要求。关键词：超声波；单片机语言系统；HC-SR04DesignandImplementationofTemperatureCompensationUltrasonicDistanceMeasurementBasedonMCUAbstract：Ultrasonicwavereferstothesoundwavewhosefrequencyisgreaterthan20kHz.Becauseofitsexcellentperformance,lowpriceandconvenientuse,ultrasonicrangingsensorisalsousedinranging,vehicleautomaticnavigation,vehiclesafetydrivingassistantsystem,andurbantrafficmanagement.Liquidleveldetectionhasbeenusedinrivers,oilwellsandwarehouses.Ultrasonictestingisusuallyfast,convenient,simplecalculationandeasytoreal-timecontrol,whichcanmeettherequirementsoftheactualindustryintermsofmeasurementaccuracy.Keywords:Ultrasonic;Single-Chip;speechsystem;HC-SR042目录1测距仪目的及意义...................................................................................................11.1本课题研究意义..............................................................................................11.2国内现状.........................................................................................................11.3主要内容及思路..............................................................................................22超声波测距原理.......................................................................................................22.1超声波简介.....................................................................................................22.2超声波传感器介绍......................................................................................23系统硬件电路的设计................................................................................................33.1整体方案的设计..............................................................................................33.2单片机最小系统电路......................................................................................33.3HC-SR04模块...................................................................................................33.4液晶显示电路.................................................................................................43.5DS18B20传感器电路.......................................................................................43.6语音模块.........................................................................................................53.7按键模块.........................................................................................................64软件设计..................................................................................................................74.1程序语言及开发环境......................................................................................74.2程序流程图.....................................................................................................75总结........................................................................................................................11参考文献..............................................................................................................
