G - Physics – 08 – B
Patent
G - Physics
08
B
G08B 25/10 (2006.01) G08B 13/22 (2006.01)
Patent
CA 2111929
A security system having a two way wireless keypad is disclosed which operates in a particular manner. The keypad processes information to effectively reduce communications between the control panel and the keypad. The keypad selectively activates and deactivates a transmitter and receiver arrangement for power conservation reasons. The system provides confirmation of communications between the keypad and the control panel to increase the reliability of the system.
L'invention est un système de sécurité doté d'un clavier bidirectionnel sans fil utilisant un mode de fonctionnement particulier. Ce clavier traite les informations de façon à réduire les communications entre le panneau de commande et lui-même. Il active et désactive sélectivement un dispositif d'émission-réception pour économiser l'énergie. Le système de l'invention confirme les communications entre le clavier et le panneau de commande, ce qui en fait un système plus sûr.
Parker James
Pildner Reinhart Karl
Dennison Associates
Tyco Safety Products Canada Ltd./produits de Securite Tyco Canad
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