Patent ID: 6600418
Filing Date: 2003-07-29
Classification: G06K,G06Q

Abstract:
A system for tracking an object positionable at a plurality of locations, the system comprising:(a) a transport vehicle to move the object between locations; (b) an object marker associated with the object which stores information indicative of the identity of the object; (c) a plurality of location markers, each of which is positioned at one of a plurality of locations and stores information indicative of the location of the marker; (d) an interrogator mounted on the vehicle to receive from the object marker the information indicative of the identity of the object and from the location markers the intonation indicative of the location of the markers, the interrogator comprising a radio-frequency transmitter for transmitting information to be stored on a marker and a radio-frequency receiver; and (e) a processor on-board the vehicle and operatively connected to the interrogator, wherein the processor determines the identity of the object from the information indicative of the identity of the object, the location of at least one of the location markers from the information indicative of the location of the marker, and the spatial relationship between the object and the location.