Facility and method for tracking physical assets

G - Physics – 08 – B

Patent

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G08B 13/14 (2006.01)

Patent

CA 2386388

A communication module (36) for an asset (26) to be monitored operates to periodically receive a signal from a monitoring facility (34) via a first wireless communication system (14,20,22), and in response to the absence of the signal at an expected time, communicating with the module via a second wireless system (24,30,32,34). The first system may be a short range system operating inside a limited facility (12), and the second system may be a cellular phone system. The module may include a global positioning receiver (50), so that the module may report its location via the second system to the monitoring system when it is taken from the transmission range of the first system.

La présente invention concerne un module de communication (36) permettant de surveiller un bien matériel (26). Ce module fonctionne de manière à recevoir périodiquement un signal provenant d'un dispositif de surveillance (34) par l'intermédiaire d'un premier système de communication sans fil (14,20,22), et à répondre à l'absence du signal à un moment prévu, en communiquant par l'intermédiaire d'un deuxième système sans fil (24,30,32,34). Le premier système peut être un système à faible portée fonctionnant dans une installation de taille limitée (12), et le deuxième système peut être un système de téléphone cellulaire. Le module peut comprendre un récepteur de positionnement mondial (50), qui lui permet de transmettre sa position par l'intermédiaire du deuxième système au système de surveillance lorsqu'il est hors de la portée de transmission du premier système.

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