Information processing device, prediction method, and computer-readable recording medium

Patent metadata

Field	Value
Publication number	US-2022382233-A1
Application number	US-202217824388-A
Country	US
Kind code	A1
Filing date	May 25, 2022
Priority date	May 28, 2021
Publication date	Dec 1, 2022
Grant date	—

Abstract

Regarding each of a plurality of operation patterns virtually generated in regard to the operation performed by a worker with respect to an actual plant, an information processing device uses plant data related to the operation of the actual plant and uses a virtual plant which follows the actual plant, and predicts the state transition of the actual plant in the case of implementing each operation pattern. Then, the information processing device outputs each operation pattern in a corresponding manner to the state transition of the actual plant as obtained by the virtual plant.

First claim

What is claimed is:

1 . An information processing device comprising:
a predicting unit that
regarding each of a plurality of operation patterns virtually generated in regard to operation performed by a worker with respect to an actual plant,
uses plant data related to operation of the actual plant and uses a virtual plant which follows the actual plant, and
predicts state transition of the actual plant in case of implementing each of the plurality of operation patterns; and
a display control unit that outputs each of the plurality of operation patterns in a corresponding manner to state transition of the actual plant as obtained by the virtual plant.

2 . The information processing device according to claim 1 , wherein
using the virtual plant, the predicting unit predicts occurrence of an alarm which indicates a state that,
after a first timing during operation of the actual plant, when each of the plurality of operation patterns is implemented,
is outside scope of a predefined state of the actual plant, and the display control unit outputs each of the plurality of operation patterns in a corresponding manner to state transition and the alarm corresponding to concerned operation pattern.

3 . The information processing device according to claim 2 , wherein the display control unit displays, in a corresponding manner to each of the plurality of operation patterns, count of the alarm predicted to be output after the first timing.

4 . The information processing device according to claim 2 , wherein
when each of the plurality of operation patterns is implemented, the predicting unit predicts, using the virtual plant,
occurrence of an alarm with respect to a first-type target from among a plurality of targets in the actual plant, and
occurrence of an alarm with respect to at least a single second-type target that is impacted by operation of the first-type target, and
the display control unit
outputs, in a corresponding manner to the first-type target, each of the plurality of operation patterns and the alarm occurring due to each of the plurality of operation patterns, and
outputs, in a corresponding manner to the second-type target, each of the plurality of operation patterns and the alarm occurring due to each of the plurality of operation patterns.

5 . The information processing device according to claim 2 , wherein
the display control unit displays
in a corresponding manner to each of the plurality of operation patterns, and
on identical time axis,
implementation time of various operations with respect to an operation tag included in each operation pattern and occurrence time of various alarms predicted using the virtual plant.

6 . The information processing device according to claim 2 , wherein
at a second timing arriving during operation of the actual plant, the predicting unit
uses the plant data obtained in real time from the actual plant, and
further predicts, in chronological order, state of the actual plant after the second timing, and
the display control unit displays time series data that contains, in a corresponding manner,
state of the actual plant,
the plurality of operation patterns, and
the alarm that is predicted using the virtual plant and that is predicted to be output after the second timing.

7 . The information processing device according to claim 1 , further comprising an obtaining unit that obtains information related to output of various alarms which are predicted using the virtual plant and which indicate that the actual plant is outside scope of a predefined state, wherein
with respect to a monitoring terminal that monitors the virtual plant, the display control unit performs display control of the various alarms based on relationship of the various alarms on basis of information related to output of the various alarms.

8 . The information processing device according to claim 7 , wherein the display control unit
displays, in chronological order, the various alarms according to output sequence, and regarding a plurality of same-type alarms related to each other from among the various alarms, highlights initially-output same-type alarm.

9 . The information processing device according to claim 8 , wherein the display control unit
suppresses display of same-type alarms other than the initially-output same-type alarm from among the plurality of same-type alarms, or suppresses display of same-type alarms output after elapse of predetermined period of time since the initially-output same-type alarm.

10 . The information processing device according to claim 8 , wherein, after the plurality of same-type alarms are displayed, the display control unit hides same-type alarms that occur after timing at which a worker takes measure in the actual plant or the virtual plant.

11 . The information processing device according to claim 8 , wherein the display control unit extracts, as the same-type alarms from among the various alarms, alarms having same cause of occurrence or alarms having positional relationship on upstream side or downstream side with a device that is in the actual plant and that has caused occurrence of alarms.

12 . The information processing device according to claim 8 , wherein
the obtaining unit further obtains, from the virtual plant, an operation pattern that is predicted by the virtual plant and that is related to operation to be performed by a worker with respect to the actual plant, and the display control unit displays
on identical time axis,
in chronological order, and
in different format for each of the same-type alarms,
various operations included in the operation pattern and the various alarms.

13 . A prediction method comprising:
predicting, regarding each of a plurality of operation patterns virtually generated in regard to operation performed by a worker with respect to an actual plant, that includes
using plant data related to operation of the actual plant and using a virtual plant which follows the actual plant, and
predicting state transition of the actual plant in case of implementing each of the plurality of operation patterns; and
outputting each of the plurality of operation patterns in a corresponding manner to state transition of the actual plant as obtained by the virtual plant.

14 . A computer-readable recording medium having stored therein a prediction program that causes a computer to perform a process comprising:
predicting, regarding each of a plurality of operation patterns virtually generated in regard to operation performed by a worker with respect to an actual plant, that includes
using plant data related to operation of the actual plant and using a virtual plant which follows the actual plant, and
predicting state transition of the actual plant in case of implementing each of the plurality of operation patterns; and
outputting each of the plurality of operation patterns in a corresponding manner to state transition of the actual plant as obtained by the virtual plant.

Assignees

• Yokogawa Electric Corp

Inventors

• Kashiwa Ryosuke
• Omata Toshiaki
• Ema Nobuaki
• Yoshida Yoshitaka

Classifications

• G05B2219/32338

  Use new conditions for model, check, calculate if model meets objectives · CPC title

• G05B19/41885 Primary

  characterised by modeling, simulation of the manufacturing system · CPC title

• G05B23/0272

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

• G05B23/024

  Quantitative history assessment, e.g. mathematical relationships between available data; Functions therefor; Principal component analysis [PCA]; Partial least square [PLS]; Statistical classifiers, e.g. Bayesian networks, linear regression or correlation analysis; Neural networks · CPC title

• G05B2219/31437

  Monitoring, global and local alarms · CPC title