基于USB接口的腦電信號采集系統(tǒng)的開發(fā).pdf

1、華中科技大學碩士學位論文基于USB接口的腦電信號采集系統(tǒng)的開發(fā)姓名：金旭林申請學位級別：碩士專業(yè)：生物醫(yī)學工程指導教師：林家瑞20050601華華華華中中中中科科科科技技技技大大大大學學學學碩碩碩碩士士士士學學學學位位位位論論論論文文文文IIAbstractElectroencephalograph(EEG)isrecdwhichreflectsregularelectricactionofbraincellsgroupsofwhich

2、transverseaxisrepresentstimeverticalyaxisrepresentsvalueofpotentialgeneratedbybraincells.Electroencephalographissignificantfresearchofbrainfunctionalsoisusefulfclinicdiagnosisfbraindisease.Itisusedfmedicineindertocheckbr

3、ainfunctiondiagnosebraintraumabrainthrombusheteroplasiametabolicdiseaseendocrinediseaseespeciallyefficientepilepticdisease.Recentlybrainmechanicinterface(BMI)isspotlightamongscientificresearchitsapplicationinmovementreha

4、bilitationengineeringextremelyinterestedresearchers.Thespecialsignalsisextractedfromelectroencephalographsignalswhichcontrolthemovementmechanichwheelchairdeviceetc.Traditionalelectroencephalographrecderfinishedrecdwaveby

5、atracer.NowadaysitiscommontouseapersonalcomputeraprintertorecdelectroencephalographdataacquisitioncardadoptedPCIbusinsteadofISAbusinearlierproducts.Universalserialbus(USB)isoutstinginconvenientconnectionplug&playwhichhas

6、widelywonapplication.HerewedevelopadevicerealizingelectroencephalographsignalsacquisitionbasedonUSBinterface.ThispaperintroduceddevelopmentofelectroencephalographsignalsacquisitionsystembasedonUSBinterface.Itshardwaremai

7、nlyconsistofamplifierfilterphotoelectricisolationanalogtodigitalconversiondataacquisitionbysinglechipprocessUSBcommunicationmodule.TheprimarycomponentschipsbeingusedincludehighprecisionINA114producedbyTIcompanyfthefirsti