Determining node location using a master node association in a wireless node network

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United States of America Patent

PATENT NO 9854556
SERIAL NO

14489583

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Abstract

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Improved methods and apparatus are described for determining node locations using one or more associations of nodes in a wireless node network. In general, a first node (such as a master node) may broadcast one or more first messages at a first anticipated range distance. The first node identifies which nodes associated with the first node received at least one of the first messages, such as by reports from associated nodes that receives such message(s). The first node then broadcasts one or more second messages at a smaller anticipated range distance (e.g., with a lower output power level), and determines a location of those associated nodes that did not receive any second messages but received at least one of the first messages. Such a location is between the first anticipated range distance from the first node and the second anticipated range distance from the first node.

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Patent Owner(s)

Patent OwnerAddress
FEDERAL EXPRESS CORPORATION3610 HACKS CROSS ROAD MEMPHIS TN 38125

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Benton, Steven Cordova, US 10 1229
Hollahan, Terence Collierville, US 19 2184
Skaaksrud, Ole-Petter Germantown, US 199 7745

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