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:
Mar. 24, 2020

Filed:

May. 16, 2018
Applicant:

Fanuc Corporation, Yamanashi, JP;

Inventors:

Yuusuke Oota, Yamanashi, JP;

Fumikazu Warashina, Yamanashi, JP;

Hiromitsu Takahashi, Yamanashi, JP;

Assignee:

Fanuc Corporation, Yamanashi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25J 9/16 (2006.01); B25J 19/02 (2006.01); G06T 7/00 (2017.01); G06K 9/62 (2006.01);
U.S. Cl.
CPC ...
B25J 9/161 (2013.01); B25J 9/163 (2013.01); B25J 9/1612 (2013.01); B25J 9/1674 (2013.01); B25J 9/1679 (2013.01); B25J 9/1697 (2013.01); B25J 19/023 (2013.01); G06K 9/6255 (2013.01); G06K 9/6262 (2013.01); G06T 7/0004 (2013.01); G05B 2219/37448 (2013.01); G05B 2219/45066 (2013.01); G06K 2209/19 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01); G06T 2207/30164 (2013.01);
Abstract

A machine learning device that acquires state information from a robot control inspection system. The system has a robot hand to hold a workpiece or camera. The state information includes a flaw detection position of the workpiece, a movement route of the robot hand, an imaging point of the workpiece, and the number of imaging by the camera. A reward calculator calculates a reward value in reinforcement learning based on flaw detection information including the flaw detection position. A value function updater updates an action value function by performing the reinforcement learning based on the reward value, the state information, and the action.


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