Remotely controlled door lock system and method

E - Fixed Constructions – 05 – B

Patent

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Details

E05B 47/02 (2006.01) E05B 17/10 (2006.01) E05B 47/00 (2006.01) G07C 9/00 (2006.01)

Patent

CA 2328915

A remote door lock system (10) including a radio frequency transmitter (12) for transmitting a coded sequence (14), a battery-powered controller (16) including a radio frequency receiver (20) recepted to the coded sequence, and a lock mechanism (22) including actuator (24) and a bolt (26) coupled to the actuator. The controller decodes the coded sequence during an awake mode and develops an actuator signal if the coded sequence is proper. The controller has a sleep mode that alternates with the wake mode to reduce the overall power consumption. The actuator of the lock (10) mechanism is responsive to the actuator signal, and is operative to assert a force on the bolt to lock or unlock the door (34). The controller preferably includes a low power LED driver circuit (112) including a pulse generator powering a flyback converter to control the output of the LED.

La présente invention concerne un système de verrouillage de porte télécommandé (10) comprenant un émetteur radio (12) servant à émettre une séquence codée (14), un contrôleur (16) alimenté par pile et comprenant un récepteur radio (20) calé sur la fréquence de la séquence codée, et enfin un mécanisme de verrouillage (22) comprenant un actionneur (24) ainsi qu'un verrou couplé à l'actionneur. Le contrôleur décode la séquence codée pendant un mode de veille et produit un signal actionneur su la séquence codée est correcte. Le contrôleur connaît un mode d'absence qui alterne avec le mode de veille de façon à réduire la consommation électrique globale. L'actionneur du mécanisme de verrouillage, qui réagit au signal actionneur, de façon à exercer sur le verrou une force venant verrouiller ou déverrouiller la porte (34). Le contrôleur comporte également un circuit basse puissance de commande de diode électroluminescente (112) incluant un générateur d'impulsions alimentant un variateur à transfert en retour servant à commander la diode électroluminescente.

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