Selective activation of field devices in low power wireless...

Details Selective activation of field devices in low power wireless... Selective activation of field devices in low power wireless...

H - Electricity

04

W

H04W 52/00 (2009.01) H04W 84/18 (2009.01)

Patent

CA 2675239

A control system uses a wireless network to provided communication between a host computer and field devices. The field devices are normally maintained in a lower power or sleep state. Only field devices that will be involved in a communication with the host computer are turned On and maintained On until communication between the field devices and the host computer is completed.

L'invention concerne un système de commande permettant d'obtenir une communication entre un ordinateur hôte et des dispositifs de terrain, par un réseau sans fil. Ces dispositifs de terrain sont normalement maintenus en état de faible puissance ou de veille. Seuls les dispositifs de terrain impliqués dans une communication avec l'ordinateur hôte sont allumés, et sont maintenus allumés, jusqu'à la fin de la communication entre les dispositifs de terrain et l'ordinateur hôte.

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