Utilization of motion and spatial identification in mobile RFID interrogator
First Claim
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1. A system for distinguishing an identification tag within a movable load space from at least one extraneous tag, the system comprising:
- an identification tag detector that scans for a first identification tag within a detection zone of the identification detector, wherein the detection zone at least partially overlaps with the load space;
a first sensor system that monitors movement of the identification detector;
anda processor system that;
compares movement of the first identification tag relative to movement of the identification detector, anddetermines whether the first identification tag is in the load space or is an extraneous tag based upon the movement of the first identification tag within the detection zone.
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Abstract
A system and method of using motion or spatial identification technology with a mobile RFID reader to detect whether an RFID tag is part of a forklift load or other ambulatory space such as a shopping cart receptacle, includes determining whether a tag is within a defined space and/or whether a tag is in motion relative to a mobile RFID reader. The system and method determines whether a particular RFID tag is part of a forklift load/space, has been added to or removed, is an extraneous tag, etc.
44 Citations
18 Claims
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1. A system for distinguishing an identification tag within a movable load space from at least one extraneous tag, the system comprising:
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an identification tag detector that scans for a first identification tag within a detection zone of the identification detector, wherein the detection zone at least partially overlaps with the load space; a first sensor system that monitors movement of the identification detector; and a processor system that; compares movement of the first identification tag relative to movement of the identification detector, and determines whether the first identification tag is in the load space or is an extraneous tag based upon the movement of the first identification tag within the detection zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 18)
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9. A method of identifying a radio frequency identification tag within a movable and defined zone, the method comprising:
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determining motion of the radio frequency identification tag; comparing, using a computer processor, motion of the defined zone with the determined motion of the radio frequency identification tag; and determining whether the radio frequency identification tag is within the defined zone based on the comparison result indicating the radio frequency identification tag is moving along with the defined zone. - View Dependent Claims (10, 11)
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12. A method of distinguishing a radio frequency identification tag within a load from an extraneous tag, comprising:
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monitoring movement of a radio frequency identification reader; reading a first radio frequency identification tag; monitoring movement of the first radio frequency identification tag within a read zone of the radio frequency identification reader; and determining whether the first radio frequency identification tag is part of the load, or is an extraneous tag based upon comparing the movement of the first radio frequency identification tag within the read zone with the movement of the radio frequency identification reader; wherein comparing the movement of the radio frequency identification tag with the movement of the radio frequency identification reader is performed by a computer processor. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification