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1、UltrasonicrangingsystemdesignPublicationtitle:SensorReview.Bradford:1993.Vol.ABSTRACT:Ultrasonicrangingtechnologyhaswideusingworthinmanyfields,suchastheindustriallocale,vehiclenavigationandsonarengineering.Nowithasbeenusedinlevelmeasurement,self-guidedautono
2、mousvehicles,fieldworkrobotsautomotivenavigation,airandunderwatertargetdetection,identification,locationandsoon.Sothereisanimportantpracticingmeaningtolearntherangingtheoryandwaysdeeply.Toimprovetheprecisionoftheultrasonicrangingsysteminhand,satisfythereques
3、toftheengineeringpersonnelfortherangingprecision,theboundandtheusage,aportableultrasonicrangingsystembasedonthesinglechipprocessorwasdeveloped.Keywords:Ultrasound,RangingSystem,SingleChipProcessor1.IntroductiveWiththedevelopmentofscienceandtechnology,theimpr
4、ovementofpeople’sstandardofliving,speedingupthedevelopmentandconstructionofthecity.Urbandrainagesystemhavegreatlydevelopedtheirsituationisconstructionimproving.However,duetohistoricalreasonsmanyunpredictablefactorsinthesynthesisofhertime,thecitydrainagesyste
5、m.Inparticulardrainagesystemoftenlagsbehindurbanconstruction.Therefore,thereareoftengoodbuildingexcavationhasbeenbuildingfacilitiestoupgradethedrainagesystemphenomenon.Itbroughttothecitysewage,anditiscleartothecitysewageanddrainageculvertinthesewagetreatment
6、system.Comfortisveryimportanttopeople’slives.MobilerobotsdesignedtoclearthedrainageculvertandtheautomaticcontrolsystemFreesewageculvertclearguaranteerobots,therobotisdesignedtocleartheculvertsewagetothecore.Controlsystemisthecorecomponentofthedevelopmentoful
7、trasonicrangefinder.Therefore,itisveryimportanttodesignagoodultrasonicrangefinder.2.AprincipleofultrasonicdistancemeasurementTheapplicationofAT89C51:SCMisamajorpieceofcomputercomponentsareintegratedintothechipmicro-computer.Itisamulti-interfaceandcountingont
8、hemicro-controllerintegration,andintelligenceproductsarewidelyusedinindustrialautomation.andMCS-51microcontrollerisatypicalandrepresentative.Microcontrollersareusedinamultitudeofcommercialapplic
