Automatic door opening and closing system

E - Fixed Constructions – 05 – F

Patent

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Details

E05F 15/00 (2006.01) E05F 15/20 (2006.01) G01S 15/87 (2006.01)

Patent

CA 2155818

An automatic door opening and closing system opens a door by driving means when a person approaches the door. A monitoring area is set in the vicinity of the door, and moving speed and direction computing means computes the speed and direction of movement of the person on the basis of changes in position of the person in the monitoring area. When it is judged from the computed direction of movement that the person is moving toward the door, door enabling area selecting means selects one of plural door enabling areas suitable for the speed of movement of the object. Open-door command means provides an open-door signal, which causes the door to be opened at a fixed speed, to the driving means so that the door is fully opened upon the predicted arrival of the person at the door.

Système d'ouverture et de fermeture de porte automatique fonctionnant au moyen d'un dispositif d'entraînement lorsqu'une personne s'approche de la porte. Une zone de surveillance est établie près de la porte et un appareil évalue la vitesse et la direction du mouvement de la personne selon ses changements de position dans cette zone. Lorsqu'il est établi, d'après la direction de mouvement évaluée, qu'une personne se déplace en direction de la porte, un mécanisme sélectionne une des zones d'actionnement de la porte correspondant à la vitesse de mouvement de l'objet. Un dispositif de commande transmet un signal au dispositif d'entraînement, permettant l'ouverture de la porte à une vitesse déterminée. Cela permet que la porte soit complètement ouverte à l'arrivée prévue de la personne à cette porte.

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