A New Monitoring system to Detect Snoring and Sleep State

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1、ShanghaiUniversityANewMonitoringsystemtoDetectSnoringandSleepStateAbstract:Snoringisamoreandmoreimportantprobleminpeople'sdailylife.Itisofgreatsignificancetodetectthesnoresandevaluatethesleepstatefortheimprovementofthesleepquality.Snoringcanbedefinedasthevoiceouto

2、foralandnasalradiationproducedbythevibrationoftheobstructionparts(suchasthesoftpalate,tongueandthroat),whentheairwayobstructionoccursduringsleeping.Inthispaper,weextractthedistinguishedfeatureparametersfromthetimeandfrequencydomaintodetectthesnoreswiththeprocessor

3、ofIntel(R)Atom(TM).Especiallyweapplythealgorithmofmulti-filteringtoimproveourmonitoringsystemandreducetheerrorrate.Afterdetectingthesnores,thesystemcanevaluatethestateofsleepandapplytheairpumpstochangetheheightofthepillowstoreducethefrequencyofthesnoreing.Throught

4、ests,thesystemreachesthedesirabletargetverywellandprovidesagoodsoftwareinfrastructureandhardwareplatformforfurtherresearch.I.SystemPrinciplesOursystemmainlyrealizesthefunctionsofsnoredetectionandimprovementofthesleepquality.Accordingtotheresultsofthedetections,weu

5、setheairpumpstochangetheheightofthepillows.Ifthesnorewasdetectedfrequently,thepumpswillkeepworkingtoraiseorlowertheheightofthepillows.Withthedifferentheightsofthepillows,peoplewillreducethefrequencyofsnoreing.Themonitoringsystemmainlyconsistsoffourmodules.1.DataCo

6、llectionModuleDatacollectionisrealizedbyanormalmicrophonewithon-boardintegratedsoundcard.Thefrequencybandofthevoiceis20Hzto20000Hz,sothesamplingfrequencythatwechooseis44.1KHz.2.SnoreingDetectionModuleSnoreingdetection[1]canberealizedfromthetimeandfrequencydomains.

7、Bothsidesaretryingtoextractthedistinguishedfeatures[2].2.1.TimeDetectionTimeDetectionisrefertoextractthedistinguishedfeatureparametersinthetimedomain.Theseparametersincludesnumberofsnore,snoretime,intervalandsoon.Similartothevoiceendpointdetection,thecommonmethodi

8、ncludes:averageshort-termratethreshold,short-timeenergyandaverageamplitudedetectionmethod.Aftermakingapreliminaryobservationandstatisticsontherealsnore,