HEALTH MANAGEMENT HAVING SYSTEM LEVEL DIAGNOSTIC FEEDBACK AND INFORMATION FUSION

• US 20140088766A1
• Filed: 09/21/2012
• Published: 03/27/2014
• Est. Priority Date: 09/21/2012
• Status: Abandoned Application

• Current Assignee: United Technologies Corporation (Rtx Corporation)
• Original Assignee: United Technologies Corporation (Rtx Corporation)
• Inventors: Volponi, Allan J., Tang, Liang
• Application Number:
  US13/624,039
• Publication Number:
  US 20140088766A1
• Time in Patent Office: Days
• US Class Current: 700/275
• CPC Class Codes: G05B 23/0221 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

Abstract

A method of fusing information within a turbomachine health management system according to an exemplary aspect of the present disclosure includes, among other things, sending information collected within a first subsystem from the first subsystem to a system level reasoner, and adjusting a different, second subsystem based on the information from the first subsystem.

Claims

1. A method of fusing information within a turbomachine health management system, comprising:

sending information collected within a first subsystem from the first subsystem to a system level reasoner; and

adjusting a different, second subsystem based on the information from the first subsystem.

2. The method of claim 1, wherein adjusting comprises changing how the second subsystem collects information.

3. The method of claim 1, including substituting information sent from the second subsystem to the system level reasoner with information from the first subsystem.

4. The method of claim 1, including recognizing a sensor failure within the second subsystem utilizing information from the first subsystem.

5. The method of claim 1, wherein the adjusting of the second subsystem is based further on information sent from the second subsystem to the system level reasoner.

6. A method of communicating information within a turbomachine health management system, comprising:

collecting information from at least one first subsystem at a system level; and

providing diagnostic feedback to at least one second subsystem, the diagnostic feedback adjusted in response to information from at least one subsystem, the at least one first subsystem different than the at least one second subsystem.

7. The method of claim 6, wherein the first subsystem and the second subsystem collect information from different groups of components.

8. The method of claim 6, including collecting information at the system level using a system-level reasoner.

9. The method of claim 6, including collecting information from the at least one second subsystem at the system level.

10. The method of claim 6, including using the diagnostic feedback to improve the diagnostic accuracy of the at least one second subsystem.

11. The method of claim 6, including adjusting how the at least second subsystem collects information based on the diagnostic feedback.

12. The method of claim 6, including replacing information from the at least one second subsystem with information from the at least one first subsystem based on the diagnostic feedback.

13. The method of claim 6, including recognizing a sensor failure within the at least one second subsystem using the information from the at least one first subsystem.

14. The method of claim 6, wherein the at least one first subsystem and the at least one second subsystem collect at least some information from a turbomachine using a common sensor.

15. A turbomachine health management system, comprising:

a first subsystem module configured to collect information from a first group of sensors within a turbomachine;

a second subsystem module configured to collect information from a second group of sensors within the turbomachine;

a system module configured to adjust the first subsystem module based at least in part on information from the second subsystem module.

16. The turbomachine health management system of claim 15, wherein the first subsystem module is a blade or vane health module.

17. The turbomachine health management system of claim 15, wherein the system module is configured to adjust information received from the first subsystem based on information from the second subsystem.

18. The turbomachine health management system of claim 15, including at least one sensor that communicates information to the first subsystem module.

19. The turbomachine health management system of claim 15, including at least one sensor that communicates information to the first and the second subsystem modules.