DOZE ALARM FOR DRIVER USING ENCLOSED AIR SOUND SENSOR

An enclosed air sound sensor is fixed to a driver seat in order to capture a signal indicative of the movement of body of a driver and a duration where the signal does not reach a predetermined level is detected. At the same time, a signal being generated from a vehicle only during travel is capture...

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Bibliographic Details
Main Author TAKASHIMA, MITSURU
Format Patent
LanguageEnglish
French
Japanese
Published 31.07.2003
Edition7
Subjects
ALARM SYSTEMS
ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES
ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES
AUXILIARY DRIVES FOR VEHICLES
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
INSTRUMENTATION OR DASHBOARDS FOR VEHICLES
MEDICAL OR VETERINARY SCIENCE
ORDER TELEGRAPHS
PERFORMING OPERATIONS
PHYSICS
SEATS SPECIALLY ADAPTED FOR VEHICLES
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
SURGERY
TRANSPORTING
VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR
VEHICLES IN GENERAL
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Summary:An enclosed air sound sensor is fixed to a driver seat in order to capture a signal indicative of the movement of body of a driver and a duration where the signal does not reach a predetermined level is detected. At the same time, a signal being generated from a vehicle only during travel is captured and both signals are compared by an operating circuit. When both signals exist and only when a specific trend appears in the duration of the signal indicative of the movement of body, an alarm is generated. An inexpensive and easy-to-fix doze operation alarm operating only during travel of a vehicle is provided. On fixe au siège du conducteur un détecteur de bruissement d'air occlus de manière à capter un signal représentatif du mouvement du corps du conducteur et de la durée pendant laquelle le signal n'atteint pas un niveau prédéterminé. Simultanément, on capte un signal produit lorsque le véhicule est en mouvement, puis on compare les deux signaux à l'aide d'un circuit ad hoc. Si les deux signaux sont présents, et uniquement si une tendance spécifique apparaît dans la durée du signal représentatif du mouvement du corps, une alarme se déclenche. C'est donc un moyen économique et facile à monter d'alarme d'endormissement ne fonctionnant que quand le véhicule est en mouvement.
Bibliography:Application Number: WO2002JP00436