Redundancy control device for equipping a lock

Details Redundancy control device for equipping a lock Redundancy control device for equipping a lock

E - Fixed Constructions

05

B

E05B 49/00 (2006.01) G07C 9/00 (2006.01) E05B 47/00 (2006.01)

Patent

CA 2289603

The present invention relates to a control device (20) with redundancy for fitting to a lock having a mechanism (21) for locking an unlocking an access door, the device (20) being adapted to manage a change of state of this lock under predetermined conditions and to ensure that this state current is kept current up until the next change of state. This device (20) comprises means (30) for controlling the mechanism (21) and two units (31; 32) for providing like instructions to the control means. This device (20) is characterized in that the first unit (31) has a structure different from that of the second unit (32), while effecting common functions, and in that the control means behave functionally as an AND gate to the inputs of which are applied the instructions from the units respectively, when the device is functioning in a normal situation.

La présente invention concerne un dispositif (20) de commande à redondance destiné à équiper une serrure comprenant un mécanisme (21) pour verrouiller et déverrouiller une porte d'accès, le dispositif (20) pouvant gérer un changement d'état de cette serrure suivant des conditions prédéterminées, et garantir le maintien de l'état en cours jusqu'au prochain changement d'état. Ce dispositif (20) comprend des moyens (30) pour commander le mécanisme (21), et deux unités (31; 32) pouvant fournir des consignes semblables aux moyens de commande. Ce dispositif (20) est caractérisé en ce que la première unité (31) a une structure différente de celle de la seconde unité (32), tout en réalisant des fonctions communes, et en ce que les moyens de commande se comportent fonctionnellement en tant que porte ET aux entrées de laquelle les consignes des unités sont fournies respectivement, quand le dispositif fonctionne en situation normale.

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