Head position sensor

B - Operations – Transporting – 60 – R

Patent

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Details

B60R 21/01 (2006.01) B60R 21/00 (2006.01)

Patent

CA 2474893

A driver's head position sensor is used to control deployment of safety airbags in a vehicle. An array of thermal imaging detectors provides a thermal image of a driver and detects both his head and position of his head relative to the airbags. Movement of the head towards the airbags, for example during manual operation of a radio, is measured and used to control the amount of airbag deployment. The detector array may be a 32 by 32 or 64 by 64 array of detectors such as microbridge resistance bolometer detectors.

L'invention concerne un capteur de position de la tête d'un conducteur, utilisé pour commander le déploiement d'airbags de sécurité dans un véhicule. Un réseau de capteurs à imagerie thermique fournit une image thermique d'un conducteur et détecte aussi bien la tête du conducteur que la position de la tête relativement aux airbags. Le mouvement de la tête vers les airbags, par exemple au lors d'une exploitation manuelle d'une radio, est mesuré et utilisé pour contrôler le rayon d'action des airbags. Le réseau de capteurs peut être constitués de capteurs de 32 sur 32 ou de 64 sur 64, tels que des détecteurs bolométriques de la résistance du micropont.

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