基于MEMS传感器的胎儿心率检测仪

2006.3SensorWorld心率检测仪摘要：对胎儿心率的监护，能够监测出胎儿在母体的突发情况，并及时进行救治，可有效预防围产期胎儿死亡。本文运用一种新型MEMS加速度传感器，设计制作出一个小型化、便携式的胎儿心率监护仪。据有体积小、重量轻、功耗低的特点，便于在日常生活中随身携带，方便实用。关键词：MEMS传感器；胎心率；滤波器；中图分类号：TH77文献标识码：A文章编号：1006-883X(2006)03-0041-004120160VTISCA600C13H1GMEMSSCA600C13H1G0.05FS/3%VTI3D-MEMS3D-MEMS2006.3[3]250Hz50Hz140Hz3Qf0f0QQQ120dB41Ri=(1+AF)/RidRo=Rod(1+AF)RidRod2C53550HzTA/DMCU150Hz23452006.3SensorWorld=2.53A/DA/D805164MCUMCUA/DMCUatmelAT89C2051780C51CMOSFlash126AT89c205128RAM16I/O216/521I/OI/OUART(0)CPURAMRAM5YLF12232FYLF12232F819216*1612816*8ASCII,/12832,7.52(1616)CPU8MEMSMEMS407MCU6A/D850106000451-825526242006.3[3]Ke-junXu,Li-biaoTong,TaoMei.ANetworkedSmartSensorSystemforGripperofRobots[A].2002InternationalConferenceonSensorsforIndustryHouston[C].U.S.A.PresentedbyISAandIEEE.2002.11ResearchOnTiiProtocolOfTheStandardOfIeee1451.2Abstract:TIIinterfacebetweenNCAPandSTIManditsprotocolaredefinedinthestandardofIEEE1451.2forthetransducers’plug-and-playfunction.ThepinofcommunicationsconnectorandinterfacesignallinesofTIIinterfaceareintroduced,thetransferprotocolofbytewriteorread,thetransferprotocolofthestructureofwriteorread,triggeringetc.arediscussed,andsomebasalworkforthepracticalityofthenetworkedtransducersaccordingtotheIEEE1451.2standardhasbeenfinished.Keywordsnetworkedsmartsensor;TIIprotocol;IEEE1451.2;STIM;NCAP4512300310551-5769044(O)[e-mail]4514123003100943[1].[M].,2003[2],,.[J].,2000,9(33):5.?[3],.[M].:,2001.4.[4]D.Guti´errezA.NehoraiD.McKenzie.On-lineFetalHeart[A]RateMonitoringUsingSQUIDSensorArrays.Proceedingsofthe14thBiennialBIOMAGConference[C],Boston,Massachusetts,USA,August2004.[5]DrauliodeAraujo,AllanKardecBarrosOswaldoBaffa,RonaldWakai.FETALMagnetocardiographicSourceSeparationUsingThePolesOfTheAutocorrelationFunction[A].4thInternationalSymposiumonIndependentComponentAnalysisandBlindSignalSeparation(ICA2003)[C],April2003,Nara,Japan[6]WakaiRT,LutterWJ.Matched-filtertemplategenerationviaspatialfiltering:applicationtofetalbiomagneticrecordings[J].IEEETrans.Biomed.Eng.2002;49S:1214-17FetalHeartRateMonitorDesignedWithANewTypeofMEMSAccelerometer·Abstract:Monitoringthefetalheartratecandetectthecontingentsituationofthefetusinhismotherbody,whichensuresthatthefetuscanbesavedontime.Thiscaneffectivelypreventthedeathoftheexpectedfetus.Thethesisdescribesasmallandportablefetalheartratemonitorwithanewtypeofsensor.Thefetalheartratemonitorissmall,lightandlowpower,whichmakesitportableandusefulindailylife.Keywords:MEMSsensorfetalheartratefilter971640410010101064884930010