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.
Patent No.:
Date of Patent:
Feb. 21, 2023
Filed:
Mar. 13, 2020
Mitsubishi Power, Ltd., Kanagawa, JP;
Ichiro Nagano, Yokohama, JP;
Mayumi Saito, Tokyo, JP;
Keiji Eguchi, Tokyo, JP;
Kuniaki Aoyama, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A plant monitoring device () is provided with: a detection value acquisition unit () that acquires a bundle of detection values; a first Mahalanobis distance calculation unit () that calculates a first Mahalanobis distance; a plant state determination unit () that determines whether the operation state of a plant is normal or abnormal; a cause detection value estimation unit () that estimates a cause detection value which represents a cause of the abnormality of the plant; a second Mahalanobis distance calculation unit () that calculates a second Mahalanobis distance by increasing or decreasing the detection value estimated as the cause detection value; and an identification unit () that identifies whether the abnormality can be relieved by increasing or decreasing the detection value estimated as the cause detection value.