Passive sensors for automatic faucets and bathroom flushers

E - Fixed Constructions – 03 – C

Patent

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E03C 1/05 (2006.01) E03D 5/10 (2006.01)

Patent

CA 2507504

A passive optical sensor includes a light detector sensitive to ambient (room) light for controlling, for example, the operation of automatic faucets (10, 10A, 10B, 10C) or automatic bathroom flushers (100, 100A). The passive optical sensors provide signals to flow controllers, including control electronics (400) and flow valves (38, 140) and require only very small amounts of electrical power for sensing users of bathroom facilities, and thus enable battery operation for many years. To control the operation of automatic faucets or automatic bathroom flushers based on ambient light, the controller executes novel algorithms (600, 900).

L'invention concerne un capteur optique passif équipé d'un détecteur de lumière sensible à la lumière ambiante (d'une pièce) et pouvant commander, par exemple, le fonctionnement de robinets automatiques (10, 10A, 10B, 10C) ou de dispositifs de chasse d'eau automatiques (100, 100A). Les capteurs optiques passifs de l'invention transmettent des signaux à des régulateurs de débit, y compris des commandes électroniques (400) et des soupapes de réglage (38, 140), et ne consomment que très peu d'électricité pour détecter des usagers d'installations sanitaires, de sorte que la batterie dure de nombreuses années. Pour assurer le fonctionnement de robinets automatiques ou de dispositifs de chasse d'eau automatiques en fonction de la lumière ambiante, le régulateur exécute de nouveaux algorithmes (600, 900).

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