Power and wireless communication unit for process field devices

G - Physics – 05 – B

Patent

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Details

G05B 19/418 (2006.01) G05B 15/02 (2006.01)

Patent

CA 2563337

A wireless power and communication unit (100, 200, 300, 350, 360, 400) for field devices (14) is configured to connect to a field device (14) and provide operating power and wired digital communication between the unit (100, 200, 300, 350, 360, 400) and the field device (14). RF circuitry (366) in the unit (100, 200, 300, 350, 360, 400) is configured for radio frequency communication. In one embodiment, power supply circuitry (365) in the unit includes one or more solar power cells (116) that convert solar energy into electricity to power both the unit (100, 200, 300, 350, 360, 400) and the field device (14). The unit (100, 200, 300, 350, 360, 400) interacts with the field device (14) in accordance with a standard industry communication protocol. The unit (100, 200, 300, 350, 360, 400) communicates wirelessly with an external device, such as a control room (12), based upon the interaction with the field device (14) .

Une unité d'alimentation et de communication sans fil (100, 200, 300, 350, 360, 400) pour dispositifs de champ (14) est conçue pour être connectée à un dispositif de champ (14) et assurer la puissance de fonctionnement et la communication numérique câblée entre l'unité (100, 200, 300, 350, 360, 400) et le dispositif de champ (14). Une circuiterie RF (366) montée dans l'unité (100, 200, 300, 350, 360, 400) est conçue pour la communication radiofréquence. Dans un premier mode de réalisation, la circuiterie d'alimentation (365) montée dans l'unité comprend une ou plusieurs photopiles (116) qui convertissent l'énergie solaire en électricité qui sert à alimenter à la fois l'unité (100, 200, 300, 350, 360, 400) et le dispositif de champ (14). L'unité (100, 200, 300, 350, 360, 400) interagit avec le dispositif de champ (14) conformément à un protocole de communication standard de l'industrie. L'unité (100, 200, 300, 350, 360, 400) communique sans fil avec un dispositif externe, tel qu'une salle de commande (12), sur la base de l'interaction avec le dispositif de champ (14) .

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