Title:
PLANT MONITORING METHOD, PLANT MONITORING DEVICE, AND PLANT MONITORING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/191098
Kind Code:
A1
Abstract:
This plant monitoring method uses a Mahalanobis distance calculated from a plurality of variable data items indicating the state of a plant. The method includes: a separation step for separating a range of one variable, which indicates the state of the plant, into a plurality of first range bands on the basis of the frequency distribution of the one variable; and a unit space creation step for creating a plurality of unit spaces, each of which serves as a base for calculating the Mahalanobis distance, on the basis of the plurality of variable data items respectively corresponding to a plurality of second range bands that are of the one variable and that are decided on the basis of the plurality of first range bands.
Inventors:
NAGANO ICHIRO (JP)
SAITO MAYUMI (JP)
AOYAMA KUNIAKI (JP)
EGUCHI KEIJI (JP)
SAITO MAYUMI (JP)
AOYAMA KUNIAKI (JP)
EGUCHI KEIJI (JP)
Application Number:
PCT/JP2022/009600
Publication Date:
September 15, 2022
Filing Date:
March 07, 2022
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI POWER LTD (JP)
MITSUBISHI POWER LTD (JP)
International Classes:
G05B23/02
Domestic Patent References:
| WO2021019760A1 | 2021-02-04 |
Foreign References:
| JP2016018435A | 2016-02-01 | |||
| JP2012048616A | 2012-03-08 |
Attorney, Agent or Firm:
SSIP PATENT ATTORNEY CORPORATION (JP)
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