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:
Apr. 20, 2021

Filed:

Jul. 25, 2018
Applicant:

Topcon Corporation, Tokyo-to, JP;

Inventors:

Fumio Ohtomo, Saitama, JP;

Kaoru Kumagai, Tokyo-to, JP;

Satoshi Yanobe, Tokyo-to, JP;

Assignee:

TOPCON Corporation, Tokyo-to, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 15/00 (2020.01); G01C 15/00 (2006.01); G01C 3/08 (2006.01); G01C 1/00 (2006.01); G01C 15/06 (2006.01);
U.S. Cl.
CPC ...
G01C 15/006 (2013.01); G01C 1/00 (2013.01); G01C 3/08 (2013.01); G01C 15/06 (2013.01);
Abstract

A surveying system comprising a rover having an illuminating lamp for emitting an illumination light, a second azimuth indicator for detecting an azimuth angle of an optical axis of the illumination light, a surveying instrument comprises a surveying instrument main body and a rotary driving unit capable of rotating the surveying instrument main body in at least a left-and-right direction, wherein the surveying instrument main body comprises a first azimuth indicator for detecting an azimuth angle of a reference optical axis, and as arithmetic control module, and wherein the arithmetic control module is configured to calculate the azimuth angle of the reference optical axis which is in parallel or approximately parallel with the optical axis of the illumination light based on the azimuth angle of the optical axis of the illumination light received from the rover and the azimuth angle of the reference optical axis.


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