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dc.contributor.advisorMilke, Jamesen_US
dc.contributor.authorAshley, Erin Macken_US
dc.date.accessioned2007-06-22T05:34:19Z
dc.date.available2007-06-22T05:34:19Z
dc.date.issued2007-04-25
dc.identifier.urihttp://hdl.handle.net/1903/6802
dc.description.abstractThe study presented measures the awakening effectiveness of a number of commercially available emergency alerting devices. Three groups of varying hearing levels were tested: hearing able, hard of hearing, and deaf. The devices evaluated are a typical audible smoke detector, a strobe light, and a bed shaker. The subjects were monitored for sleep stage during the single night tests and the emergency alerting devices were activated in Stage 2, Delta and REM stages of sleep. Results indicate that the audible smoke detector was most effective for the hearing able population and least effective for the deaf population. The recommended alternative to the audible smoke detector, the strobe, was the least effective device when measured against the total United States population. The vibratory tactile devices were most effective across all hearing categories and sleep stage. When the tactile signal of the bed shaker was modified to vibrate intermittently, all persons were effectively aroused. The research shows that the standard audible detector recommended for placement in all American homes is only effective in awakening those without hearing loss. The strobe is recommended by building and fire codes when hearing deficits are present but did not sufficiently awaken any population. Tactile devices can provide a sufficient means for awakening all populations regardless of hearing level, age or raceen_US
dc.format.extent1130225 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.titleWaking Effectiveness of Emergency Alerting Devices for the Hearing Able, Hard of Hearing, and Deaf Populationsen_US
dc.typeDissertationen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentReliability Engineeringen_US
dc.subject.pqcontrolledEngineering, Generalen_US
dc.subject.pquncontrolledWaking Effectivenessen_US
dc.subject.pquncontrolledEmergency Alerting Devicesen_US
dc.subject.pquncontrolledSmoke Detectoren_US
dc.subject.pquncontrolledDeafen_US


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