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1、AppliedMechanicsandMaterialsVol.109(2012)pp248-25Intelligentvehicle-mountedalcoholdetectioncontrolsystemKeywords:intelligent;alcoholdetection;vehicle-mountedAbstract：Thepaperdesignedanintelligentvehicle-mountedalcoholdetectioncontrolsystem,whichisbasedonS3C2440chip.Thesystemtes

2、tedthedriver'sresponseabilityandeye-handcoordinationininteractivewaytodeterminewhetherthedrivercouldcontrolthevehicle.Thesystemintroducedpsychologymethodinnovatively.Itcanovercomethedisadvantageofonlydependingonthegasalcoholconcentrationasthecontrolbasis,andenhancetheapplicabil

3、ityofthesystem.IntroductionDrink-drivinghasbeenaheavytopic,Peoplehurtssomuchbytrafficaccidentcausedbydrinking-drivingandPeopletakesvariousmeasurestocurbdrinkdrivingphenomenon,Therearesomekindsofvehicle-mountedalcoholdetectioncontrolsystemwhichareusedtocontroldrink-driving,those

4、systemusealcoholsensorwhichplacedinthecardetectthealcoholconcentrationandcomparethealcoholconcentrationvaluewiththesetgasconcentrationvalue,thencontrolthevehicleaccordingtotheresultofcomparison.Theycanreducethedrinking-drivingbehavior.Butthosesystemcontrolthevehicleignitionbyth

5、egasalcoholcontentexistbigdisadvantage.Duetothedifferencephysicalconditionofindividual,theaffectiononpeoplecausedbyalcoholisdifferent.Sothebloodalcoholconcentration(BAC)cannotfullyreflecttheimpactofalcoholonpeople’sdrivingskills.Furthermoreitisdifficulttojudgealcoholgasoriginan

6、dmeasurethebreathalcoholconcentration(BrAC)accuratelyinthecar’sclosedspacewithnosurveillance.Nomatterhowthealcoholsensorclosetothedriver,thegaswhichthesensordetectedisstillgasmixturesandBrACcannotbedetectedaccurately.Thenthesystemcontrolthecarusethegasalcoholcontentexistbigweak

7、ness.Inadditionthosesystemcan'tdistinguishthealcoholgascomefromthedrinkdriverfromthealcoholgascomefromcopilotorothersourceofalcohol,Moreoverthosesystemunabletodeterminewhetherthedriverwanttocoordinatewiththem.Basedonthediscussionupwards,anewintelligentvehicle-mountedalcoholdete

8、ctioncontrolsystemisputforwardinthispaper.Thissystemus