Abnormality response teaching system, abnormality factor estimation method, abnormality response teaching method, and program

Patent metadata

Field	Value
Publication number	US-12504750-B2
Application number	US-202118021672-A
Country	US
Kind code	B2
Filing date	Aug 30, 2021
Priority date	Nov 12, 2020
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

Provided is an abnormality response teaching system that estimates a factor of an abnormality and teaches a treatment for the factor. This abnormality response teaching system is provided with: an operation parameter acquisition unit for acquiring an operation parameter measured during operation of a device; a diagnosis information acquisition unit for acquiring diagnosis information indicating the result of a diagnosis of operation of a machine with which the device is provided, said diagnosis being executed prior to startup of the device; and a factor analysis unit for inputting the operation parameter and the diagnosis information to an FTA with which abnormality factors are analyzed, and thereby analyzing an abnormality factor, when an abnormality occurs in the device.

First claim

The invention claimed is:

1 . An abnormality response teaching system comprising:
a recovery valve; an isolation valve; an operation parameter acquisition unit that acquires an operation parameter measured during an operation of a device; a diagnosis information acquisition unit that acquires diagnosis information indicating a result of an operation diagnosis of a machine included in the device, in which the operation diagnosis is executed by a diagnosis system before activation of the device; a factor analysis unit that inputs, when an abnormality occurs in the device, the operation parameter and the diagnosis information to a Fault Tree Analysis (FTA), with which a factor of the abnormality is analyzed, to analyze the factor of the abnormality; and a treatment work instruction unit that outputs treatment work instruction information in which instruction for treatment work for the factor that is analyzed by the factor analysis unit is transmitted, wherein the treatment work instruction unit outputs
isolation valve instruction information in which instruction for an operation of the isolation valve that ensures work safety is transmitted,
work instruction information in which instruction for a work procedure for a component, which is present at a position isolated by the isolation valve, and information about the component and a position of the component are transmitted, and
recovery valve instruction information in which instruction for an operation of the recovery valve for satisfying a reactivation condition of the device is transmitted,
the abnormality response teaching system further comprising: a treatment work completion reception unit that receives an input of completion of the treatment work; and a reactivation preparation completion notification unit that provides a notification that a reactivation preparation is completed when all of the treatment work is completed, in response to the output of the isolation valve instruction information, the work instruction information, and the recovery valve instruction information, operating the recovery valve and returning the isolation valve to an original state, in response to the notification that the reactivation preparation is completed, performing the reactivation of the device.

2 . The abnormality response teaching system according to claim 1 , further comprising:
an inspection/construction information acquisition unit that acquires inspection/construction information indicating an actual result of an inspection or of construction executed for the device, wherein the factor analysis unit inputs the operation parameter, the diagnosis information, and the inspection/construction information to the FTA to analyze the factor.

3 . The abnormality response teaching system according to claim 1 , further comprising:
an analysis result output unit that outputs an analysis result obtained by the factor analysis unit together with a fault tree of the FTA.

4 . An abnormality response teaching method comprising:
acquiring an operation parameter measured during an operation of a device; acquiring diagnosis information indicating a result of an operation diagnosis of a machine included in the device, in which the operation diagnosis is executed by a diagnosis system before activation of the device; inputting, when an abnormality occurs in the device, the operation parameter and the diagnosis information to a Fault Tree Analysis (FTA), with which a factor of the abnormality is analyzed, to analyze the factor of the abnormality; and outputting treatment work instruction information in which instruction for treatment work for the factor that is analyzed is transmitted, wherein isolation valve instruction information in which instruction for operating an isolation valve that ensures work safety is transmitted, work instruction information in which instruction for a work procedure for a component, which is present at a position isolated by the isolation valve, and information about the component and a position of the component are transmitted, and recovery valve instruction information in which instruction for operating a recovery valve for satisfying a reactivation condition of the device is transmitted, the abnormality response teaching method further comprising: receiving an input of completion of the treatment work; and providing a notification that a reactivation preparation is completed when all of the treatment work is completed, in response to the output of the isolation valve instruction information, the work instruction information, and the recovery valve instruction information, operating the recovery valve and returning the isolation valve to an original state, in response to the notification that the reactivation preparation is completed, performing the reactivation of the device.

5 . The abnormality response teaching method according to claim 4 , further comprising:
receiving an input of completion of the treatment work; and providing a notification that a reactivation preparation of the device is completed when all of the treatment work is completed.

6 . A non-transitory computer-readable recording medium that stores a program for causing a computer to execute a process comprising:
acquiring an operation parameter measured during an operation of a device; acquiring diagnosis information indicating a result of an operation diagnosis of a machine included in the device, in which the operation diagnosis is executed by a diagnosis system before activation of the device; inputting, when an abnormality occurs in the device, the operation parameter and the diagnosis information to a Fault Tree Analysis (FTA), with which a factor of the abnormality is analyzed, to analyze the factor of the abnormality; and outputting treatment work instruction information in which instruction for treatment work for the factor that is analyzed is transmitted, wherein isolation valve instruction information in which instruction for operating an isolation valve that ensures work safety is transmitted, work instruction information in which instruction for a work procedure for a component, which is present at a position isolated by the isolation valve, and information about the component and a position of the component are transmitted, and recovery valve instruction information in which instruction for operating a recovery valve for satisfying a reactivation condition of the device is transmitted, the abnormality response teaching method further comprising: receiving an input of completion of the treatment work; and providing a notification that a reactivation preparation is completed when all of the treatment work is completed, in response to the output of the isolation valve instruction information, the work instruction information, and the recovery valve instruction information, operating the recovery valve and returning the isolation valve to an original state, in response to the notification that the reactivation preparation is completed, performing the reactivation of the device.

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Nagata Yoshiyuki
• Ohara Hirofumi
• Kojima Tomoyuki
• Sekine Susumu
• Fujimura Daiki
• Ai Toshishige
• Saito Manabu

Classifications

• G05B23/0272

  Presentation of monitored results, e.g. selection of status reports to be displayed; Filtering information to the user · CPC title

• G05B23/0221

  Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods · CPC title

• G05B23/0243 Primary

  model based detection method, e.g. first-principles knowledge model · CPC title

• G05B23/0275 Primary

  Fault isolation and identification, e.g. classify fault; estimate cause or root of failure · CPC title