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:
Jan. 30, 2024

Filed:

Feb. 03, 2023
Applicant:

Mujin, Inc., Tokyo, JP;

Inventors:

Russell Islam, Tokyo, JP;

Xutao Ye, Tokyo, JP;

Rosen Diankov, Tokyo, JP;

Assignee:

MUJIN, INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25J 9/16 (2006.01); G06T 7/80 (2017.01);
U.S. Cl.
CPC ...
B25J 9/1692 (2013.01); B25J 9/1697 (2013.01); G06T 7/80 (2017.01); G05B 2219/39008 (2013.01); G06T 2207/30164 (2013.01);
Abstract

A computing system and a method for calibration verification is presented. The computing system is configured to perform a first calibration operation, and to control a robot arm to move a verification symbol to a reference location. The robot control system further receives, from a camera, a reference image of the verification symbol, and determines a reference image coordinate for the verification symbol. The robot control system further controls the robot arm to move the verification symbol to the reference location again during an idle period, receives an additional image of the verification symbol, and determines a verification image coordinate. The robot control system determines a deviation parameter value based the reference image coordinate and the verification image coordinate, and whether the deviation parameter value exceeds a defined threshold, and performs a second calibration operation if the threshold is exceeded.


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