Health monitoring display system for a complex plant

• US 7,088,255 B2
• Filed: 05/29/2002
• Issued: 08/08/2006
• Est. Priority Date: 05/29/2001
• Status: Expired due to Term

• Current Assignee: Westinghouse Electric Company LLC (Brookfield Asset Management Incorporated)
• Original Assignee: Westinghouse Electric Company LLC (Brookfield Asset Management Incorporated)
• Inventors: Harmon, Daryl L., Colin, Dreyfuss, Ridolfo, Charles F.
• Primary Examiner(s): Lieu, Julie Bichngoc
• Application Number:
  US10/157,280
• Publication Number:
  US 20030005486A1
• Time in Patent Office: 1,532 Days
• Field of Search: 340/635, 340/500, 340/501, 340/506, 340/507, 703/2, 702/181, 702/29
• US Class Current: 340/635
• CPC Class Codes: G05B 23/0272 Presentation of monitored results, e.g. selection of status reports to be displayed; Filtering information to the user

Abstract

A single page enterprise wide level display provides a comprehensive readily understood representation of the overall health status of a complex plant. Color coded failure domains allow rapid intuitive recognition of component failure status. A three-tier hierarchy of displays provide details on the health status of the components and systems displayed on the enterprise wide level display in a manner that supports a logical drill down to the health status of sub-components on Tier 1 to expected faults of the sub-components on Tier 2 to specific information relative to expected sub-component failures on Tier 3.

Claims

1. A health monitoring display system for a complex plant, the system comprising:

sensors generating sensed values of specified parameters of a plurality of components in the complex plant;

a health monitoring status means determining from the sensed values a health condition for the plurality of components the complex plant; and

a human machine interface including a display means presenting in a single page enterprise level display the health condition as determined by the health monitoring status means of each of selected of the plurality of components of the complex plant chosen to provide an indication of enterprise-wide health of the complex plant.

2. The system of claim 1, wherein the human machine interface includes an operator input device and the display means comprises means displaying multiple tiers of information relevant to the health of a selected component of the complex plant selected through the operator input device beginning from the single page enterprise level display.

3. The system of claim 2, wherein the display means comprises means displaying information on sub-components of a selected component of the complex plant in a first tier display.

4. The system of claim 3, wherein the display means displays in the first tier display a predicted time to failure for each sub-component.

5. The system of claim 4, wherein the display device further includes means displaying an expected down time for each sub-component.

6. The system of claim 4, wherein the display means comprises means displaying for each predicted time to failure, an expected time to failure, an upper bound of the time to failure, and a lower bound for the predicted time to failure.

7. The system of claim 4, wherein the display means comprises means also displaying a time to scheduled outage.

8. The system of claim 4, wherein the display means presents the sub-components on the display in the time-sequence order that they are predicted to fail.

9. The system of claim 3, wherein the display means comprises means displaying in a second tier display faults for a sub-component selected through the operator input device from the first tier display.

10. The system of claim 9, wherein the display means comprises means presenting a failure state probability for each fault in the second tier display.

11. The system of claim 9, wherein display means comprises means displaying the faults in a hierarchy.

12. The system of claim 11, wherein the display means comprises means displaying a failure state probability for each fault.

13. The system of claim 11, wherein the display means includes means displaying a normal failure state probability, an intermediate failure state probability, and a severe failure state probability for each fault.

14. The system of claim 9, wherein the display means comprises means displaying in a third tier display any one of multiple displays with selected details on the sub-component selected from the first tier display.

15. The system of claim 14, wherein the display means comprises means presenting for the third tier display at least one detail selected from a group comprising:

failure state probability of the selected sub-component, a mimic display, sensor data, historical data, a maintenance log, and a cost function.

16. The system of claim 15, wherein the display means presents as the state probability, a probability of a normal state, a probability of an intermediate state, and a probability of a severe state for the selected sub-component.

17. The system of claim 16, wherein the display means comprises means for displaying a graphical representation of historical data.

18. The system of claim 15, wherein the display means comprises means generating a display presenting the cost to be expected from failure of the selected sub-component.

19. The system of claim 18, wherein the display means comprises means presenting the cost function as a graphical representation of cost to be expected from the selected mode failure as a function of time that repair is made.

20. The system of claim 19, wherein the display means comprises means displaying a graphical representation of a median cost, a selected upper percentile cost, and a lower percentile cost to be expected from the selected failure mode as a function of time that the repair is made.

21. The system of claim 18, wherein the display means includes means displaying as a cost function, a cost of operating the complex plant as a function of time over an extended period.

22. The system of claim 1, wherein the display means presents the single page enterprise level display using a common hierarchy of failure domains in representing the health condition of each of the selected of the plurality of components of the complex plant.

23. The system of claim 22, wherein the display means uses a common hierarchy of failure domains comprising representations indicating an imminent probability of failure, a low probability of failure and an intermediate probability of failure.

24. The system of claim 2, wherein the display means uses a common hierarchy of failure domains in representing the health conditions in the single page enterprise level display and in each of the multiple tiers.