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MD3000BiologicalSignalAcquisitionandProcessingSystemHuaibeiZhenhuaBiologicalEquipmentCo.,Ltd-1-一、IntroductionMD3000biologicalsignalacquisitionandprocessingsystemispackedwithmanyexpertsandprofessorsformanyyearsthedevelopmentofthePCbiologysignalacquisitionandprocessingsystemexperienceandtheintroductionofanotherhigh-techproducts,toreplacethetraditionalrecorder,oscilloscopeandstimulatorexperimentalapparatususedinphysiology,pharmacologyandpathophysiologyofcollegesinteachingandresearchlaboratory.Meanwhile,MD3000softwarecanprovideeasyoperation,goodobservation,todealwithapowerfulexperimentaltoolforthemajorityofstudents,experimentsresearchersandteachersinthestablerunningunderWindows2000/XPbyusingNTtechnology.二、MD3000systemintroduce（一）SystemcomponentsandbasicprincipalAccordingtothecharacteristicsoftheelectrophysiologicalexperiments,MD3000biologysignalacquisitionandprocessingsystemisacombinationofgoodqualityoftraditionalinstrumentsandpowerfulprocessingcapabilitiesofcomputersdesignsystem.MD3000isthemulti-CPUparallelsetofsignalamplification,dataacquisition,display,storage,processingandoutputoftheexperimentalsystem.Itiscomposedfromtwopartsofthehardwareandsoftware.Hardware＇smainlytaskthatitisconditioningandamplificationavarietyofbiologicalsignals(suchas:ECG,EMG,EEG)andnon-electricbiologicalsignal(suchas:bloodpressure,tension,respiration),andthusthesignalanalog/digital(A/D)converttomakeitintothecomputer.However,softwareistocompletethecontrolsystemandbiologicalsignalhasbeendigitizeddisplay,recording,storage,processing,andprintoutput.(1)Componentsdiagram:(2)Componentsdiagram:SystemSoftwareStimulatorDataconversioncardAmplifierSubjectsUSBconnectionControllerDriverSystemSoftwareProgrammablestimulatorDataacquisitioncardProgrammableGainAmplifierSubjectsMD3000BiologicalSignalAcquisitionandProcessingSystemHuaibeiZhenhuaBiologicalEquipmentCo.,Ltd-2-(3)MD3000isamulti-CPUparallelworkofthebiologicalsignalacquisitionandprocessingsystem,thebasicprincipaldiagramisasfollows:Accordingtotheacquisitionsystemprincipaldiagram,suggestingthatweshouldconsiderthefollowingwhendoingtheexperiments:(1).Whethertheneedtostimulate?(controlonechipmachine1,setthestimulationmodeandparameters)(2).Whethertheneedforsensor?(accordingtothenon-electricalsignalsorelectricalsignalstodetermine)(3).Directcurrent(DC)oralternatingcurrent(AC)input?(selectthelowerboundfrequencybythesoftware)(4).Themagnification?(controlonechipmachine2,setthemagnification)(5).Onthespeedofanalogsignalsampling?(controlonechipmachine2,setthesamplinginterval)(6).Whetherthedataisdigitalfiltering?(thegreaterinterferencewiththedigitalfilteringtoobtainthebettercurve.)(7).Whichisselectedmappingway,arecorderoroscilloscope?Ifthecontinuousoscilloscopeusesignalorsynchronizationtoggle?(8).Whatdataandindexbythereal-timeprocessing?(9).Whetherthesampleddatareserved?(10).whetherthedataforfurtherprocessing?ApplicationMD3000systemneedtomakeclearthemeaningoftheaboveproblemsandfamiliarwiththesetormodifythemethod.MD3000biologicalsignalacquisitionandprocessingsystemMD3000SystemMCU1programMCU2programStimulatorStimulationpatternAmplifierMagnificationSubjectsSamplingcardSamplingintervalSensorNon-electricalsignalElectricsignalReal-timeprocessingDataarchivingMappingdisplayDataprocessing15342698107MD3000BiologicalSignalAcquisitionandProcessingSystemHuaibeiZhenhuaBiologicalEquipmentCo.,Ltd-3-（二）SystemapplicationsoftwareintroduceMD3000biologicalsignalacquisitionandprocessingsystemapplicationsoftwareeasiedtolearnanduseisthestandardWindows32-bitapplicationprogram,becauseofthegraphicoperationinterfaceconsistentwithotherMicrosoftapplicationprogramstyle.MD3000applicationsoftwareiseasytoinstallandunload,nospecialrequirementsonthehardwareanddonotseizurethespecialresourcesofthePC.Theusersdonothavetoadjustthemicrocomputerport,andothercomplexoperations.Doneoutofthebox,veryfastandconvenient.Mycompanyhasdevelopeddedicated98/2000/XPdevicedriver,ThisdevicedrivercaneffectivelyandcompletehardwareacquisitiondatatransmittedfromthePCmemorytotheupperapplicationprogram,whichisdevelopmentWINDOWSsamplingapplicationprogramthekey.Thisisanimportantsymbolofourproductswithothersimilarproducts,butalsotheMD3000biologicalsignalacquisitionandprocessingsystemisfullyembodiesahigh-techproduct.Becauseofthestandardandspecificationprogramdevelopment,Ithasbroughtgreatconveniencetotheusers.Includingallmouseclicks,easyandconvenient,muti-windowoperationsamplingandprocessingthedata.Samplingwindowsizeisadjustable,X,Y-axiscompressedextendedfreely.Supportsallprinters,andnetworkresourcesharing.EspeciallyMD3000canseamlessconnectionwithotherWindowsapplication(ACCESS,Excel,Word)asresources,meanwhile,Itcansharedatathatdataprocessingworkfromthecomplex,alargenumberoflaborhavebeenliberated.Longtimerecords,whilesamplingsidesave,nomaximumfilesizeandtimelimited.SupportChineselongfilenamescanbeanyfilenamed.Ontheotherside,WINDOWSsoftware＇sadvantagescanbereflectedintheMD3000.ThehardwareisworkbaseandthesoftwareisthecoretocompletethetaskintheMD3000.MD3000canpassthroughsoftwaresetti