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基于AT89C51单片机的多功能转速表的设计,定做请加QQ：,1060741974, ,参考网站 ,/, ,/, ,/cat.asp?id=25

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MultifunctionalapplicationstoseveraltablesOntherotationalspeedtabledesignhasmanyavailable,butmostlybymechanicalorsimulateddigitalcircuitstoachieve.Therearelargeinsize,precisionlow,notvisual,electronicslarge,lessfunctionalandsamplingtime,itisdifficulttodetectinstantaneousrotationalspeed.AsChanpianjiwithbothsmallandcontrolfunctionssuchstrongcharacteristics,soitwidelyincontrolapplications.WewantmultifunctionalrotationalspeedcontrolsystemisdesignedtoShanpianjiasthecoretoachieveintelligentmeters.Itismorefunctional,smallelectronics,andvisualaccuracy,showingtime,speedwarningsystems,printing,suchasinstantrotationalspeedadvantage.Incomputerhardwareandsoftwaretechnologydevelopmentefforts,andtopresentsuchfunctionalsingle,lowprecision,sizeandpriceofhighrotationalspeedtablesareupgradingequipment.Currentlyrotationalspeedtableasacommonmeasurementtoolhasmanycomingtomarket,suchas:mechanical,electricalandmechanicalstyle,electromagnetic-type,photoelectrictype.Althoughtheyareprecisemeasurements,theuseofsafe,operate,buttheprevailingquestionisasinglefunctioninthecurrenthardwareandsoftwaretoimprovetheprecisionandfunctionsonthebasisofachievingacomprehensiveequipmentupgradingandimprovingpilotskills.Theintroductionofnewtechnologydevelopedmultifunctionalrotationalspeedtable,withgeneralrotationalspeedtablefunctions,butalsowithotherspecialfunctions.Fromthe1970s,thehumanaerospace,transportandweaponsindustryproblemsencountereddifficultyinthetraditionaltheorytosolve.Theneedtopromotethedevelopmentoftheproductiveforcesincomputersystemstechnologytodevelop.Accompaniedbycomputersoftwareandhardwarerapiddevelopmentoftechnology,masterdegreesinmultifunctionalrotationalspeedtable,function,performance,andhavearapiddevelopmentarchitecture,hasbeenabletomasteracompletepowerful,performancequalitylasersystems.NowEuropeandtheUnitedStatesandotherdevelopedcountries,lasersystemtechnologyhasbeensuccessfullyappliedtoaerospace,transportation,ordnanceindustry,mechanicaldesign,andmanyotherareas,hasatremendousbenefit,butalsofortraditionaldesigntestingmethodshavechangeddramatically.Thisisthemodernmarketdemandforproductsthatdonot,howtoimprovethesuccessrateoftheinitialdesignofthetraditionaldesignmethodologyisadifficultquestion.BecauseofitshighChanpianjimasterdegrees,bothsmallandanti-interferencecapabilityandaffordable,uniquecontrolfunctions,ithasbecomeanimportantmemberofthecomputerworld.Applicationsinone,onlyoneChanpianji,whichiscurrentlythelargestapplicationform,themainapplicationareasare:(1).Monitoringsystem.Shanpianjimayconstituteavarietyofindustrialcontrolsystems,adaptivesystems,dataacquisitionsystems.(2).Smartmeters.Shanpianjitransformationintheoriginalmeasurement,controlinstrumentationcanoutputdigitalintelligent,multifunctional,integrated,flexibletechnologydevelopment.(3).Andintegrationproducts.Shanpianjicombinationwiththetraditionalmechanicalproducts,mechanicalproductssimplifysystemcontrolintelligent.(4).Smartinterface.Inthecomputercontrolsystem(especiallythelargerindustrialmonitoringandcontrolsystems),widespreadadoptionDanpianjiinterfaceforthecontrolandmanagementofthemainframeisChanpianjiparallelwiththework,ithasgreatlyenhancedsystemoperatingspeed.HoweverShanpianjiapplicationsmustnotbelimitedtoitsbroadmeaningandscopeoftheeconomicbenefitsarisingfrom,moreimportantliesin:Danpianjiapplicationsarefundamentallychangingthetraditionalcollectioncontrolsystemdesignconceptsanddesignmethods.FormercircuitordigitalcircuitmustbesimulatedtoachievemostofthecontrolfunctionscannowbeusedShanpianjithroughsoftware(programming)methodsachieved.ToreplacehardwareandsoftwarethatcancontroltechnologywillenhancesystemperformancewithDanpianjipopularizetheapplicationofconstantdevelopmentandimprovement.Shanpianmicrocomputersfortheemergenceofautomatedinstrumentationopensbroadprospects.MCS-SJ-Chanpianparticulartypeofperformancecomputer,size,energy,advantages,andstrongcomputing,processingandmemorystoragecapabilitiestocontrolcomponentsusedDanpianjiwisdommetersintotheupgradingofindustrialproductsandadvancedtechnologyareeconomicmeans.Maintainapeakcapacity.Rotationalspeedchangestothememoryofthegreatestrotationalspeedvalues.Ablackboxfunction.Tothepermanentpreservationofimportantrotationalspeeddataforaccidentanalysis,reviewapplications,normalcircumstancescanprovidedataanalysis.Amendmentcanbepreservedforthenextfewrecords.Canautomaticallyprint,andcanautomaticallychangeaccordingtothedifferentrequirementsofprintintervals.Therebyspeedingaccesstotestdata,amaximumspeedofdata.Anti-interferencecapability.Ontheimportationofabroaderrangeofadaptivesignal.Applicabletoelectromagnetictype,photoelectrictype,fluidstyle,andmanyothersensorstoproduceonepulseperor60-(60)business,themetersparticularlysuitedtothetestingplanthousingunitsrotationalspeed,control,similartootherminingindustryusesalsoapply.Metersintomeasurement,display,interactive,andprintseveralofthepolice.Smartdevicesaremicroprocessorsatthecoreofelectronicequipment,hardwarecircuitdesignofthecomponentstothemasteryoftheprinciplesofwork,butalsoforitsmasteryofmicro-computerhardwareandsoftwareprinciples.Thegeneralwisdomequipmentdesignsteps:First,itisnecessarytodeterminethedesignofthemission,topreparethedesigntasksheets,equipmentshouldhaveclearfunctionsandshouldmeetthetechnicalrequirements,designofthemissionstatementisthebasisforthedesigndesignersshouldstrivetoaccurateprecision;Andthentodesignprogrammestodevelop,atthisstage,designersmustmakeseveraldesignoptions,Eachprogrammeshouldincludeequipmentdesignprinciples,usingthetechnology,thekeycomponentsofperformance;thentoconductafeasibilitystudyontheprogramme,includingsomeimportantpartofthetheoreticalanalysisandcalculation,andthenecessarysimulationexperiments,inordertoachievecertificationprogrammecandesignrequirements;Thenagainintooneoftheoptionsasafactorinthedesignofprogrammestoidentifymachinesworkequipmenttotaldiagram;Finally,thehardwarecircuitandsoftwaredebuggingandcircuitdesignandtheoveralltone.Smartmachinesisadedicatedmicro-computersystems,ithastwohardwareandsoftwarecomponents.Whichmainly89C52Chanpianjihardwarecircuits,laserconverters,keyboardsetthreshold,warningcircuit,andtheledLCDsystemwiththecomputerinterfacecircuits.Softwarecomponentsincludingcontrolprocedures.Thesemonitoringproceduresforequipmentpanelskeyboardsandmonitors,anditscontentsinclude:importandstoragethroughkeyboardoperationestablishedbythefunctional,operationalmodalitiesandactivitiesofparameters;ThroughdatacollectioncontrolI/Ointerfacecircuitsforequipmentintendedforinstallation;ROMofthedatarecordeddataandvariousstate;Tofigures,characters,graphics,andotherformsofstateinformationandmeasurementsshowthattheoutcomeoftheprocess.多功能转速表的应用关于转速表的设计已经有很多可供参考,但大部分都是由机械式或模拟数字电路来实现的。存在着体积大、精度低、不直观、功耗大、功能少，而且采样时间长，难以测得瞬时转速。由于单片机具有体积小、控制功能强等特点,故它在控制方面得到了广泛的应用。我们所要设计的多功能转速控制系统就是以单片机为核心来实现智能化仪表。它具有功能多,功耗小、直观准确,可显示时间、限速报警系统、打印、瞬间转速等优点。在计算机硬件和软件技术发展的推动下，使目前国内外这类功能单一、精度低、体积大及价格高的转速表装备得到更新换代。目前转速表作为一种通用测量工具,已有多种形式面市,如:机械式、机电式、电磁式、光电式等。尽管它们大都测量精确、使用安全、操作简便、但普遍存在的问题是功能单一，在现今的硬件和软件的精度和功能全面的提高的基础上实现了设备的更新换代，提高了实验技术水平。采用新技术研制开发的多功能转速表除具有一般转速表的功能外,还具有另外的特殊功能。从70年代起，人类在航空航天、交通运输及兵器工业上所遇到的问题难以用传统的理论来解决。生产力发展的需要促使在计算机系统技术得以发展。同时伴随着电子计算机软件和硬件技术的飞速发展，多功能转速表在集成度、功能、性能、体系结构方面都有了飞速发展，已能集成一个完整的功能强大、性能优良的测速系统。现在欧美等发达国家，测速系统的技术已成功地应用于航空航天、交通运输、兵器工业、机械设计等多种领域，已产生巨大的效益，同时也使传统的设计试验方法发生了巨大变化。这与现代市场对产品的需求很不适应，如何提高初次设计的成功率是传统设计方法的一个难题。单片机由于其集成度高、体积小、抗干扰能力强和价格低廉、具有独特的控制功能，它已经成为计算机世界中的重要成员。在一个应用系统中，只用一个单片机，这是目前应用最多的方式，主要应用领域有：(1).测控系统。用单片机可构成各种工业控制系统、自适应系统、数据采集系统等。(2).智能仪表。用单片机改造原有的测量、控制仪表，能迥数字化、智能化、多功能化、综合化、柔性化发展。(3).机电一体化产品。单片机与传统的机械产品结合，使系统机械产品结构简化，控制智能化。(4).智能接口。在计算机控制系统（特别是较大型的工业测控系统）中，普遍采用单片机进行接口的控制与管理，因单片机与主机是并行工作，故大大提高了系统的运行速度。但是单片机应用的意义绝不仅限于它的广阔范围以及所带来的经济效益上，更重要的意义还在于：单片机的应用正丛根本上改变着传统的控制系统设计思想和设计方法。从前必须由模拟电路或数字电路实现的大部分控制功能，现在已能使用单片机通过软件（编程序）方法实现了。这种以软件取代硬件并能提高系统性能的控制技术必将随着单片机应用的推广普及而不断发展完善。单片微型计算机的出现为自动检测仪表打开了广阔的前景。特别是MCS-SJ-型单片微机的性能价格比、尺寸、能耗上的优势，以及极强的计算、