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. 05, 2026

Filed:

Mar. 31, 2023
Applicant:

Wuhan University, Wuhan, CN;

Inventors:

Tao Zhang, Wuhan, CN;

Jingui Zou, Wuhan, CN;

Assignee:

WUHAN UNIVERSITY, Wuhan, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 17/34 (2006.01); G01C 17/38 (2006.01); G01S 19/14 (2010.01);
U.S. Cl.
CPC ...
G01C 17/34 (2013.01); G01C 17/38 (2013.01); G01S 19/14 (2013.01);
Abstract

A method for orienting includes: setting a digital optical imaging device including a photosensitive device, a lens, and a global navigation satellite system (GNSS) receiver; allowing an optical axis of the lens to pass through a geometric center of the photosensitive device, so that a celestial body is imaged on the photosensitive device; and positioning a current position by using the GNSS receiver, and recording an accurate time; calculating an accurate azimuth angle of the celestial body at this moment, wherein, at this time, an imaging position of the celestial body on the photosensitive device is located on an extension line of a ligature of the azimuth of the celestial body and a geometric center of the photosensitive device, thereby through accurately extracting the imaging position of the celestial body, a placement orientation of the digital optical imaging device is determined, and a north direction is obtained.


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