The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 09, 2023

Filed:

Jul. 23, 2021
Applicant:

Trimble Ab, Danderyd, SE;

Inventors:

Johan Carlén, Danderyd, SE;

Mikael Nordenfelt, Danderyd, SE;

Christian Grässer, Danderyd, SE;

Assignee:

Trimble AB, Danderyd, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 1/04 (2006.01); G01C 15/00 (2006.01); G01C 15/06 (2006.01); G01J 11/00 (2006.01); G01S 19/51 (2010.01);
U.S. Cl.
CPC ...
G01C 1/04 (2013.01); G01C 15/006 (2013.01); G01C 15/06 (2013.01); G01J 11/00 (2013.01); G01S 19/51 (2013.01);
Abstract

The present disclosure provides a method for determining a direction to a geodetic target from a geodetic instrument. The method includes emitting an optical pulse from the geodetic target, capturing a first image and a second image of the geodetic target using a camera arranged at the geodetic instrument, obtaining a difference image between the first image and the second image, and determining a direction to the geodetic target from the geodetic instrument based on the position of the optical pulse in the difference image. The method further includes synchronizing the geodetic instrument and the geodetic target for emitting the optical pulse concurrently with the capturing of the first image and nonconcurrently with the capturing of the second image. The present disclosure also provides a geodetic instrument, a geodetic target and a geodetic surveying system.


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