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:
Oct. 25, 2022

Filed:

Jun. 10, 2019
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

Satoshi Katsunuma, Santa Clara, CA (US);

Michiko Yoshida, Cupertino, CA (US);

Assignee:

HITACHI, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25J 9/16 (2006.01); B25J 9/00 (2006.01); G05B 19/418 (2006.01);
U.S. Cl.
CPC ...
B25J 9/1674 (2013.01); B25J 9/0084 (2013.01); G05B 19/4184 (2013.01); G05B 2219/31356 (2013.01); G05B 2219/31383 (2013.01); Y02P 90/02 (2015.11);
Abstract

Example implementations described herein estimate parameters for equipment that cannot be sensed directly, including determining if such equipment is running or stopping. Example implementations determine the standard throughput per equipment and product, based on history of equipment production data, extract previous and next equipment of robotic arms on the line by using physical topology information of robot arms and equipment, senses and determines throughput of associated robot arms and compares the robot arm throughput with the standard throughputs of the previous and next equipment, which help determine whether the previous/next equipment have stopped.


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