Coarse and fine location for tagged items

The location of an item may be determined by first determining a coarse location and then a fine location. In one example, a coarse position of a tagged item is determined using a coarse positioning system and the item's tag. A mobile unit, carrying a fine positioning system, is moved to the de...

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Bibliographic Details
Main Authors SINGLE PETER S, SMITH GEOFFREY J
Format Patent
LanguageEnglish
Published 03.07.2008
Subjects
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Summary:The location of an item may be determined by first determining a coarse location and then a fine location. In one example, a coarse position of a tagged item is determined using a coarse positioning system and the item's tag. A mobile unit, carrying a fine positioning system, is moved to the determined coarse position. Then, a fine position of the tagged item is determined by communicating between the fine positioning system of the moved mobile unit and the item's tag.
Bibliography:Application Number: US20070725046