Method of and apparatus for monitoring positions on an object
US11346653B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2019 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Jan 22, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.