Title:
ALARM ANALYSIS DEVICE, ALARM ANALYSIS METHOD, BAYESIAN NETWORK MODEL, AND ALARM ANALYSIS PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/259307
Kind Code:
A1
Abstract:
An alarm analysis device 1, provided with: a Bayesian network model; an estimation unit 12 for estimating a first relevance of a plurality of alarms by using the Bayesian network model; and, an assessment unit 13 for using the first relevance to perform grouping of alarm groups that have occurred in the same event. The Bayesian network model has: a plurality of type nodes that indicate alarm type; and, a time node and a location node that are linked to each type node. The time node is set with a second relevance that corresponds to the difference from the time of occurrence of an alarm in a child node or a parent node of a linked type node. The location node is set with a third relevance that corresponds to the difference from the location of occurrence of an alarm in a child node or a parent node of a linked type node.
Inventors:
TAKADA ATSUSHI (JP)
HAYASHI NAOKI (JP)
SATO RYOSUKE (JP)
SEKI TOSHIHIKO (JP)
YAMAGOE KYOKO (JP)
HAYASHI NAOKI (JP)
SATO RYOSUKE (JP)
SEKI TOSHIHIKO (JP)
YAMAGOE KYOKO (JP)
Application Number:
PCT/JP2021/021559
Publication Date:
December 15, 2022
Filing Date:
June 07, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G08B25/00; G08B31/00
Foreign References:
| JPH09307550A | 1997-11-28 | |||
| JP2019114992A | 2019-07-11 | |||
| JP2000048277A | 2000-02-18 | |||
| JPH01106112A | 1989-04-24 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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