Methods and systems for monitoring and diagnosing machinery by incremently testing a rule

• US 7,739,216 B2
• Filed: 04/22/2004
• Issued: 06/15/2010
• Est. Priority Date: 04/22/2004
• Status: Active Grant

• Current Assignee: Baker Hughes Holdings LLC (Baker Hughes Company)
• Original Assignee: General Electric Company
• Inventors: Grant, John Wesley, Gomer, Richard Lewis, Pfrehm, Patrick Louis, Kelly, Bradley Ted, Schachtely, Alan Thomas, Schmid, James Joseph, Knodle, Chad Eric
• Primary Examiner(s): DeCady; Albert
• Assistant Examiner(s): GAMI, TEJAL
• Application Number:
  US10/829,585
• Publication Number:
  US 20050240545A1
• Time in Patent Office: 2,245 Days
• Field of Search: 700/83, 709/224, 340/825.36, 340/679, 706/47
• US Class Current: 706/47
• CPC Class Codes: G05B 23/0227 Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions

Abstract

A computer-implemented method of managing a machinery monitoring system is provided. The method includes relating an asset output to at least one asset input, generating at least one rule based on the relation, selecting at least one of live asset data, historical asset data, user-supplied asset data, and third party supplied asset data to test the at least one rule, testing the at least one rule incrementally using the selected asset data, and monitoring the output of the at least one rule at each increment.

Claims

1. A computer-implemented method of managing a machinery monitoring system, said method comprising:

relating an asset output to at least one asset input wherein the at least one asset input includes at least one of a measured process parameter and a derived process parameter relatable to the asset output;

generating at least one rule based on the relation wherein the at least one rule defines the asset output based on the at least one asset input;

selecting at least one of live asset data, historical asset data, user-supplied asset data, and third party supplied asset data to test the at least one rule;

testing the at least one rule incrementally using the selected asset data and by comparing each asset output to each respective expected asset output, wherein the test comprises a plurality of incremental steps to be performed;

determining an expected asset output for the selected data after the plurality of incremental steps are performed;

monitoring the asset output of the at least one rule at each increment;

displaying incremental results after each of the plurality of incremental steps are completed, wherein each of the incremental results includes a numerical value corresponding to an intermediate value of a test result, wherein a numerical value of at least one incremental result is at least one of a sum, a difference, a product and a quotient of two or more incremental results; and

outputting the test result.

2. A method in accordance with claim 1 further comprising bundling the at least one rule into a Rule Set that includes a Rule Set encryption code.

3. A method in accordance with claim 2 wherein bundling the at least one rule into a Rule Set comprises bundling a plurality of rules into an XML file.

4. A method in accordance with claim 2 wherein bundling the at least one rule into a Rule Set comprising bundling at least one of a rule documentation page and a Rule Set documentation page into the Rule Set.

5. A method in accordance with claim 1 further comprising:

transmitting the Rule Set to the machinery monitoring system;

decrypting the Rule Set encryption; and

importing the Rule Set into the monitoring system.

6. A method in accordance with claim 5 wherein importing the Rule Set comprises:

locating Rule Set files;

prompting a user for an encryption key; and

interpreting the Rule Set file.

7. A method in accordance with claim 6 further comprising:

entering Rule Set information into an enterprise database; and

refreshing a list of Rule Sets based on the Rule Set information.

8. A method in accordance with claim 5 wherein importing the Rule Set comprises:

checking an enterprise database for an existing copy of the imported Rule Set;

selectively updating any of the existing Rule Sets if the imported Rule Set is a different version than the existing Rule Set; and

updating assets using the imported Rule Set.

9. A method in accordance with claim 5 further comprising substantially preventing importing the Rule Set into the monitoring system unless an authorized encryption key is used.

10. A method in accordance with claim 1 wherein relating an asset output to at least one input comprises relating a measurable machine asset output to at least one input.

11. A method in accordance with claim 1 wherein relating an asset output to at least one input comprises relating a measurable machine asset output to at least one input wherein the at least one input is indicative of a machine asset anomalous behavior.

12. A method in accordance with claim 1 wherein generating at least one rule comprises resolving the operands for the at least one rule.

13. A method in accordance with claim 1 wherein generating at least one rule comprises documenting the rule logic for the at least one rule.

14. A method in accordance with claim 1 wherein relating an asset output to at least one input comprises prompting the user to enter a security control password.

15. A computer-implemented machinery monitoring system for a plant, said system comprising:

a client system comprising a user interface;

a database for storing Rule Sets, wherein the Rule Sets include at least one rule expressed as a relational expression of a real-time data output relative to a real-time data input that includes at least one of a measured process parameter and a derived process parameter relatable to the real-time data output, wherein the relational expression is specific to a plant asset; and

a processor programmed to control said machinery monitoring system to, said processor manager programmed to;

prompt a user for a security control password;

generate a plant asset operational rule from an application expert wherein the operational rule defines the real-time data output based on the at least one real-time data input;

test said rule based on at least one of live asset data, historical asset data, user- supplied asset data, and third party supplied data, wherein the test includes comparing the real-time output to an expected real-time output, and wherein the test comprises a plurality of incremental steps to be performed;

determine an asset output after the plurality of incremental steps are performed;

display incremental results after each of the plurality of incremental steps are completed, wherein each of the incremental results includes a numerical value corresponding to an intermediate value of a test result, wherein a numerical value of at least one incremental result is at least one of a sum, a difference, a product and a quotient of two or more incremental results; and

output the test result.

16. A system in accordance with claim 15 wherein said processor is further programmed to bundle the at least one rule into a Rule Set that includes a Rule Set encryption code.

17. A system in accordance with claim 16 wherein said processor is further programmed to bundle a plurality of rules into an XML file.

18. A system in accordance with claim 16 wherein said processor is further programmed to bundle at least one of a rule documentation page and a Rule Set documentation page into said Rule Set.

19. A system in accordance with claim 15 wherein said processor is further programmed to:

transmit said Rule Set to said at least one machinery monitoring system;

decrypt said Rule Set encryption; and

import said Rule Set into said at least one monitoring system.

20. A system in accordance with claim 19 wherein said processor is further programmed to:

locate Rule Set files;

prompt a user for an encryption key; and

interpret said Rule Set file.

21. A system in accordance with claim 20 wherein said processor is further programmed to:

enter Rule Set information into said database; and

refresh a list of Rule Sets based on said Rule Set information.

22. A system in accordance with claim 19 wherein said processor is further programmed to:

check said database for an existing copy of said imported Rule Set;

selectively update any of said existing Rule Sets if said imported Rule Set is a different version than said existing Rule Set; and

update assets using said imported Rule Set.

23. A system in accordance with claim 19 wherein said processor is further programmed to substantially prevent importing said Rule Set into said at least one monitoring system unless an authorized encryption key is used.

24. A system in accordance with claim 15 wherein said processor is further programmed to relate a measurable machine asset output to at least one input.

25. A system in accordance with claim 15 wherein said processor is further programmed to relate a measurable machine asset output to at least one input that is indicative of a machine asset anomalous behavior.

26. A system in accordance with claim 15 wherein said processor is further programmed to resolve the operands for the at least one rule.

27. A system in accordance with claim 15 wherein said processor is further programmed to receive, from a user, documentation of the rule logic for said at least one rule.

28. A system in accordance with claim 15 wherein said processor is further programmed to prompt the user to enter a security control password.

29. A computer program embodied on a computer readable medium for managing a machinery monitoring system using a server system coupled to a client system and a database, said client system including a user interface, said program comprising a code segment that prompts a user for a security control password and then:

relates an asset output to at least one asset input that includes at least one of a measured process parameter and a derived process parameter relatable to the asset output;

generates a plant asset operational rule from an application expert wherein the operational rule defines an asset output based on at least one asset input;

tests said rule based on at least on of live asset data, historical asset data, user-supplied asset data, and third party supplied data wherein the testing includes comparing the asset output to a respective expected asset output, wherein the test comprises a plurality of incremental steps to be performed;

determines an asset output after the plurality of incremental steps are performed;

displays incremental results after each of the plurality of incremental steps are completed, wherein each of the incremental results includes a numerical value corresponding to an intermediate value of a test result, wherein a numerical value of at least one incremental result is at least one of a sum, a difference, a product and a quotient of two or more incremental results; and

outputs said results of said test.

30. A computer program in accordance with claim 29 further comprising a code segment that bundles said at least one rule into a Rule Set that includes a Rule Set encryption code.

31. A computer program in accordance with claim 30 further comprising a code segment that bundles a plurality of rules into an XML file.

32. A computer program in accordance with claim 30 further comprising a code segment that bundles at least one of a rule documentation page and a Rule Set documentation page into said Rule Set.

33. A computer program in accordance with claim 29 further comprising a code segment that:

transmits said Rule Set to said at least one machinery monitoring system;

decrypts said Rule Set encryption; and

imports said Rule Set into said at least one monitoring system.

36. A computer program in accordance with claim 33 further comprising a code segment that:

checks an enterprise database for an existing copy of said imported Rule Set;

selectively updates any of said existing Rule Sets if said imported Rule Set is a different version than said existing Rule Set; and

updates assets using said imported Rule Set.

37. A computer program in accordance with claim 33 further comprising a code segment that substantially prevents importing said Rule Set into said at least one monitoring system unless an authorized encryption key is used.

38. A computer program in accordance with claim 29 further comprising a code segment that relates a measurable machine asset output to at least one input.

39. A computer program in accordance with claim 29 further comprising a code segment that relates a measurable machine asset output to at least one input wherein said at least one input is indicative of a machine asset anomalous behavior.

40. A computer program in accordance with claim 29 further comprising a code segment that resolves the operands for said at least one rule.

41. A computer program in accordance with claim 29 further comprising a code segment that receives, from a user, documentation of the rule logic for said at least one rule.

42. A computer program in accordance with claim 29 further comprising a code segment that prompts the user to enter a security control password.

34. A computer program in accordance with 33 further comprising a code segment that:

locates Rule Set files;

prompts a user for an encryption key; and

interprets said Rule Set file.

35. A computer program in accordance with claim 34 further comprising a code segment that:

enters Rule Set information into an enterprise database; and

refreshes a list of Rule Sets based on said Rule Set information.