Method of and apparatus for monitoring positions on an object
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United States of America Patent
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May 31, 2022
Grant Date -
Nov 12, 2020
app pub date -
Jan 22, 2019
filing date -
Jan 22, 2018
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An apparatus monitors positions on an external object having at least one beacon (1(i), i=1, 2, . . . , I) attached to it. The apparatus has an image sensor (11), a lens system (13) and a processing unit (9). The lens system (13) receives at least one light beam (5(i)) transmitted from the at least one beacon (1(i)) and transfer the at least one light beam (5(i)) to the image sensor (11). The image sensor (11) forms image data. The processing unit (9) identifies the at least one beacon (1(i)) within the image data based on the at least one light beam (5(i)), determines current location data of the at least one beacon (1(i)) based on the image data, compares the current location data with former location data of the one or more beacons (1(i)) as stored in a memory (15) and determines whether the object has moved relative to a fixed reference frame based on the comparison.
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