EVENT ANALYSIS APPARATUS, EVENT ANALYSIS SYSTEMS, EVENT ANALYSIS METHODS, AND EVENT ANALYSIS PROGRAM

• US 20170132292A1
• Filed: 11/02/2016
• Published: 05/11/2017
• Est. Priority Date: 11/06/2015
• Status: Active Grant

• Current Assignee: Yokogawa Electric Corporation
• Original Assignee: Yokogawa Electric Corporation
• Inventors: LIU, Zhuo, SAKURABA, Yuichi
• Granted Patent: US 10,496,655 B2
• Time in Patent Office: Days
• CPC Class Codes: G05B 19/0426 Programming the control sequence
• CPC Class Codes: G05B 2219/23026 Recognise user input pattern and present possible intended program
• CPC Class Codes: G05B 2219/23434 Select automatically prefered program data, ordered to most used program
• CPC Class Codes: G05B 23/0237 based on parallel systems, e.g. comparing signals produced at the same time by same type systems and detect faulty ones by noticing differences among their responses
• CPC Class Codes: G06F 11/3006 where the computing system is distributed, e.g. networked systems, clusters, multiprocessor systems multiprogramming arrangements G06F9/46; allocation of resources G06F9/50
• CPC Class Codes: G06F 11/302 where the computing system component is a software system
• CPC Class Codes: G06F 11/3476 Data logging G06F11/14, G06F11/2205 take precedence
• CPC Class Codes: G06F 16/2465 Query processing support for facilitating data mining operations in structured databases
• CPC Class Codes: G06F 7/08 Sorting, i.e. grouping record carriers in numerical or other ordered sequence according to the classification of at least some of the information they carry by merging two or more sets of carriers in ordered sequence G06F7/16

Abstract

An event analyzer includes: an event collector configured to collect event log data representing operation history which an DCS operator performed; a basic unit operation analyzer configured to analyze event log data, and extract basic unit operation data representing operation method based on the operation by the DCS operator; and an unit operation analyzer configured to analyze basic unit operation data, and extract unit operation data representing intention of the operation by the DCS operator.

Claims

1. An event analyzer comprising:

an event collector configured to collect event log data representing an operation history of operations performed by an DCS operator;

a basic unit operation analyzer configured to analyze the event log data, and to extract basic unit operation data representing an operation method based on the operations performed by the DCS operator; and

an unit operation analyzer configured to analyze basic unit operation data, and to extract unit operation data representing operational intentions of the operations by the DCS operator.

2. The event analyzer according to claim 1, wherein

the event collector is configured to collect a plurality of event log data arranged in time series,

the basic unit operation analyzer is configured to extract one or more of basic unit operation data and analyze one or more of the event log data, and

the unit operation analyzer is configured to analyze basic unit operation data extracted and extract unit operation data representing intention of the operation by the DCS operator.

3. The event analyzer according to claim 1, wherein

the basic unit operation analyzer is configured to analyze at least one of continuity of time and change of setting value based on the event log data, and determine the operation method to extract the basic unit operation data.

4. The event analyzer according to claim 2, wherein

the basic unit operation analyzer is configured to analyze at least one of continuity of time and change of setting value based on the event log data, and determine the operation method to extract the basic unit operation data.

5. The event analyzer according to claim 1, wherein

the unit operation analyzer is configured to determine the operation intention which means what kind of change the DCS operator gives to the process, and extract unit operation data based on rule which is based on domain knowledge.

6. The event analyzer according to claim 2, wherein

the unit operation analyzer is configured to determine the operation intention which means what kind of change the DCS operator gives to the process, and extract unit operation data based on rule which is based on domain knowledge.

7. The event analyzer according to claim 1, further comprising:

an analysis result output unit configured to output analysis result data representing the basic unit operation or the unit operation on time axis based on the basic unit operation data or the unit operation data.

8. The event analyzer according to claim 2, further comprising:

an analysis result output unit configured to output analysis result data representing the basic unit operation or the unit operation on time axis based on the basic unit operation data or the unit operation data.

9. The event analyzer according to claim 1, further comprising:

an analysis result output unit configured to output analysis result data representing the basic unit operation or the unit operation on time axis based on basic unit operation data or unit operation data; and

a display configured to display in a visual manner analysis data outputted from the analysis result output unit.

10. The event analyzer according to claim 2, further comprising:

an analysis result output unit configured to output analysis result data representing the basic unit operation or the unit operation on time axis based on basic unit operation data or unit operation data; and

a display configured to display in a visual manner analysis data outputted from the analysis result output unit.

11. The event analyzer according to claim 1, further comprising:

an operation procedure analyzer configured to analyze sequences of basic unit operation data or unit operation data, and extract an operation procedure for which the DCS operator performs an alarm response and a steady operation.

12. The event analyzer according to claim 2, further comprising:

an operation procedure analyzer configured to analyze a sequences of basic unit operation data or unit operation data, and extract an operation procedure for which the DCS operator performs an alarm response and a steady operation.

13. The event analyzer according to claim 1, further comprising:

an operation procedure analyzer configured to analyze sequences of basic unit operation data or unit operation data, and extract an operation procedure for which the DCS operator performs an alarm response and a steady operation; and

a speaker configured to announce in an auditory manner the operation procedure extracted by the operation procedure analyzer.

14. The event analyzer according to claim 2, further comprising:

an operation procedure analyzer configured to analyze sequences of basic unit operation data or unit operation data, and extract an operation procedure for which the DCS operator performs an alarm response and a steady operation; and

a speaker configured to announce in an auditory manner the operation procedure extracted by the operation procedure analyzer.

15. An event analyzer according to claim 1, further comprising:

a log data administrator configured to output event log data indicating operation history which an DCS operator performed.

16. The event analyzer according to claim 15, wherein

the event collector is configured to collect event log data arranged in time series;

the basic unit operation analyzer is configured to analyze one or more of event log data and extract one or more of basic unit operation data representing the operation method based on the operation which the DCS operator performed.

17. An event analysis method using a computer comprising:

collecting event log data representing operation history which an DCS operator performed;

analyzing event log data collected in the step of collecting the event and extracting basic unit operation data representing an operation method operated by the DCS operator; and

analyzing basic unit operation data extracted by the basic unit operation analyzer in the basic unit operation analyzing step and extracting unit operation data representing operation intention of the operation by the DCS operator.

18. An event analysis method according to claim 17, wherein

collecting event log data arranged in time series;

and

analyzing one or more of event log data and extracting one or more of basic unit operation data.

19. A non-transitory computer readable storage medium that stores a computer program for causing, when executed by a computer, the computer to perform:

collecting event log data representing operation history which an DCS operator performed;

analyzing event log data and extracting basic unit operation data representing a operation method operated by the DCS operator; and

analyzing the basic unit operation data and extracting unit operation data representing a operation intention of the operation which the DCS operator performed.

20. The non-transitory computer readable storage medium according to claim 19, wherein

collecting a set of event log data arranged in time series;

analyzing one or more of event log data and extracting one or more of basic unit operation data.