Title:
MONITORING METHOD, METHOD FOR CALCULATING SN RATIO GAIN, MONITORING DEVICE, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/145222
Kind Code:
A1
Abstract:
Provided is a method for calculating an SN ratio gain, in which the magnitude level of the SN ratio gain based on an orthogonal array size for each unit space in a multi-MT method is corrected. This method for calculating an SN ratio gain involves creating a plurality of unit spaces by using data detected by a plurality of sensors provided to a plant, and evaluating the state of the plant using the unit spaces by a multi-MT method, and includes: a step for allocating, for each of the unit spaces, one of the sensors used for creating the unit space to a 2-level orthogonal array, and generating orthogonal arrays for the respective unit spaces; a step for calculating, for each of the orthogonal arrays for the respective unit spaces, an SN ratio for each line of the orthogonal array; and a step for calculating, for each of the sensors in the orthogonal arrays for the respective unit spaces, an SN ratio gain by calculating a difference between a total value of SN ratios based on a larger-is-better response in a first level and a total value of SN ratios based on a larger-is-better response in a second level.
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/JP2022/043205
Publication Date:
August 03, 2023
Filing Date:
November 22, 2022
Export Citation:
Assignee:
MITSUBISHI POWER LTD (JP)
MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
G05B23/02; G21C17/00
Foreign References:
| JP2013221626A | 2013-10-28 | |||
| JP2011209847A | 2011-10-20 | |||
| JP2019177783A | 2019-10-17 | |||
| JP2012067757A | 2012-04-05 | |||
| JP2009243428A | 2009-10-22 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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