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:
Aug. 10, 2021

Filed:

Jan. 30, 2019
Applicant:

Topcon Corporation, Tokyo, JP;

Inventor:

Motohiro Miyajima, Tokyo, JP;

Assignee:

Topcon Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 25/00 (2006.01); G01C 11/02 (2006.01);
U.S. Cl.
CPC ...
G01C 25/005 (2013.01); G01C 11/02 (2013.01);
Abstract

A surveying deviceconfigured to perform a survey by tracking, as a survey target, a prismattached to a cameraof a movable imaging device, includes an electronic distance meterconfigured to measure a distance to the survey target; a horizontal angle detectorand a vertical angle detectoreach configured to measure an angle; a main bodysupporting these members; a time obtainerconfigured to obtain a GPS time from a GPS satellite; a tilt sensorconfigured to detect a posture of the main body; a calibratorconfigured to calibrate the tilt sensor; and a survey controllerthat causes the calibratorto perform calibration during a period in which the time obtainerobtains the GPS time, as an advance preparation to be performed before the measurement.


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