System and method for tracking and locating a person, animal, or machine

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United States of America Patent

PATENT NO 9140557
APP PUB NO 20140203970A1
SERIAL NO

14107156

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Abstract

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A system and method for estimating the position of an object, such as a person, animal, or machine. The system includes first and second inertial measurement units, a first and second originator antennas, and a first and second transponder antennas. The system uses data from the inertial measurement units to estimate a position of the object. The system also calculates a range measurement between the first originator antenna and first transponder antenna. The system calculates a first CPD measurement between the second transponder antenna and the first originator antenna, and a second CPD measurement between the second originator antenna and the first transponder antenna. The range measurement and at least one CPD measurement are used to update a Kalman filter for estimating the position of the object. The system determines also updates the Kalman filter when one of the inertial measurement units is in a zero-velocity condition.

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Patent Owner(s)

Patent OwnerAddress
ENSCO INC5400 PORT ROYAL ROAD SPRINGFIELD VIRGINIA 22151 22151

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alwood, Robert Barlow Springfield, US 8 81
Farnsworth, Bradley David Alexandria, US 12 194
Faulkner, William Todd Sylva, US 12 137
Foster, Christopher Matthew Fairfax, US 5 60
Taylor,, Jr David W A Greensboro, US 15 70

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