Optical navigation aid within a beacon field
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United States of America Patent
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Jan 14, 2014
Grant Date -
Apr 12, 2012
app pub date -
Oct 12, 2011
filing date -
Oct 12, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A secondary optical system for object navigation in an array of beacons is provided that includes an optical source having at least one optical emitter emitting an optical signal and that is mounted to either the moving object or a beacon of the array of beacons. The moving object in simultaneous radio frequency communication the array of beacons to determine dynamic position of the object. An optical detector is mounted to the other of a moving object or the beacon of the array of beacons and the optical detector receives the optical signal when line of sight exists between the moving object and a beacon of the array of beacons. Electronics are provided for determining the dynamic position of the moving object uses weighting factor that favors the communication and at least two beacons of the array of beacons for which a moving object-beacon optical line of sight exists.
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