Methods, systems, and devices for managing, reprioritizing, and suppressing initiated alarms

• US 9,633,552 B2
• Filed: 02/21/2013
• Issued: 04/25/2017
• Est. Priority Date: 02/21/2013
• Status: Active Grant

• Current Assignee: Thai Oil Public Company Limited
• Original Assignee: Thai Oil Public Company Limited
• Inventors: Janchookiat, Mongkol
• Primary Examiner(s): RUSHING, MARK S
• Application Number:
  US14/442,999
• Publication Number:
  US 20150379864A1
• Time in Patent Office: 1,524 Days
• Field of Search: 340511
• CPC Class Codes: G05B 23/0272 Presentation of monitored results, e.g. selection of status reports to be displayed; Filtering information to the user
• CPC Class Codes: G06F 11/327 Alarm or error message display
• CPC Class Codes: G06F 11/3419 by assessing time
• CPC Class Codes: G06F 2201/81 Threshold
• CPC Class Codes: G06F 2201/86 Event-based monitoring
• CPC Class Codes: G08B 25/001 Alarm cancelling procedures or alarm forwarding decisions, e.g. based on absence of alarm confirmation
• CPC Class Codes: G08B 29/02 Monitoring continuously signalling or alarm systems
• CPC Class Codes: G08B 29/185 Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
• CPC Class Codes: H04L 41/0609 based on severity or priority
• CPC Class Codes: H04L 41/0631 using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis

Abstract

Present example embodiments relate generally to methods, systems, computing devices, and logic for managing a plurality of alarms initiated by a plurality of alarm sensors. The method comprises the steps of: receiving the plurality of initiated alarm, prioritizing the initiated alarms, creating an initiated alarm being a condition-based alarm when an initiated alarm satisfies an event condition, reprioritizing an initiated alarm when said initiated alarm satisfies a reprioritization condition, suppressing an initiated alarm, reporting an unsuppressed initiated alarm based on the prioritizing of said alarm, and providing information comprising an operator action for the unsuppressed initiated alarm and an initiated alarm suppressed based on the unsuppressed initiated alarm.

Claims

1. A method for managing a plurality of alarms initiated by a plurality of alarm sensors, the method comprising:

receiving the plurality of initiated alarms;

prioritizing the initiated alarms;

creating a condition-based alarm, wherein the condition-based alarm is a new initiated alarm created when a received initiated alarm is determined to satisfy an event condition;

reprioritizing an initiated alarm when said initiated alarm satisfies a reprioritization condition;

suppressing an initiated alarm;

reporting an unsuppressed initiated alarm based on the prioritizing of said alarm; and

providing information comprising an operator action for the unsuppressed initiated alarm and an initiated alarm suppressed based on the unsuppressed initiated alarm.

2. The method of claim 1, wherein the prioritizing is based on an alarm prioritization matrix.

3. The method of claim 1, further comprising reconfiguring a dead band value for an initiated alarm based on a measurement response time associated with said initiated alarm.

4. The method of claim 1, further comprising creating a group alarm when two or more related initiated alarms are received, wherein the related initiated alarms comprise the same priority and a same initial operator response.

5. The method of claim 1, wherein the event condition is an operating condition that is not monitored by an alarm sensor associated with the received initiated alarm used to create the condition-based alarm.

6. The method of claim 1, wherein the reprioritizing comprises dynamically changing a limit setting for said initiated alarm based on the reprioritization condition being an operating condition, and the reprioritizing further comprises prioritizing said initiated alarm based on the dynamically changed limit setting.

7. The method of claim 1, further comprising performing alarm performance measurements, the alarm performance measurements comprising average alarm rate, maximum alarm rate, and percentage of time alarm rates exceed a threshold value.

8. The method of claim 1, wherein the suppressing comprises suppressing an alarm initiated by a shutdown activity.

9. The method of claim 1, wherein the suppressing comprises:

identifying a trigger alarm from among initiated alarms, wherein the trigger alarm is an alarm associated with a subsequently initiated alarm;

retrieving a set of expected alarms, the set of expected alarms comprising an alarm expected to be initiated subsequent to the trigger alarm;

identifying a set of triggered alarms, the set of triggered alarms comprising an alarm occurring subsequent to the trigger alarm and matching an alarm in the set of expected alarms;

identifying a set of untriggered alarms, the set of untriggered alarms comprising an alarm matching an alarm in the set of expected alarms and not received subsequent to the trigger alarm;

suppressing an initiated alarm when said alarm matches an alarm identified in the set of triggered alarms;

reporting the trigger alarm; and

reporting a fault alarm when an initiated alarm matches an alarm identified in the set of untriggered alarms.

10. The method of claim 1, wherein the suppressing comprises suppressing a transient alarm, the transient alarm being an alarm initiated during a transitory event.

11. The method of claim 4, wherein the group alarm comprises a reprioritized alarm.

12. The method of claim 4, wherein the reprioritized alarm comprises a group alarm.

13. The method of claim 4, wherein the suppressed alarm comprises a group alarm.

14. The method of claim 1, wherein the suppressed alarm comprises a reprioritized alarm.

15. The method of claim 1, wherein the suppressed alarm comprises a fleeting alarm.

16. The method of claim 4, wherein the unsuppressed alarm comprises a group alarm.

17. The method of claim 1, wherein the unsuppressed alarm comprises a reprioritized alarm.

18. The method of claim 9, wherein the unsuppressed alarm comprises a trigger alarm.

19. A system for managing a plurality of alarms initiated by a plurality of alarm sensors, the system comprising:

a network;

a graphical display;

an interface operable to receive signals representing initiated alarms;

a storage device comprising a database, the database configurable to store information comprising alarm information, an alarm prioritization matrix, and an initiated alarm received by the interface;

a processor in communication with the graphical display, the interface, the storage device, and the network, the processor operable to;

receive the plurality of initiated alarms;

prioritize the initiated alarms;

create a condition-based alarm, wherein the condition-based alarm is a new initiated alarm created when a received initiated alarm is determined to satisfy an event condition;

reprioritize an initiated alarm when said initiated alarm satisfies a reprioritization condition;

suppress an initiated alarm;

display, on the graphical display, an unsuppressed initiated alarm based on the prioritizing of said alarm; and

provide information comprising an operator action for the unsuppressed initiated alarm and an initiated alarm suppressed based on the unsuppressed initiated alarm.

20. The system of claim 19, further comprising a computing device in communication with the processor through the network, the computing device comprising logic operable to receive and display initiated alarms received at the processor.

21. The system of claim 19, wherein the prioritizing is based on the alarm prioritization matrix.

22. The system of claim 19, wherein the processor is further operable to reconfigure a dead band value for an initiated alarm based on a measurement response time associated with the initiated alarm.

23. The system of claim 19, further comprising creating a group alarm when two or more related initiated alarms are received, wherein the related initiated alarms comprise the same priority and a same initial operator response.

24. The system of claim 19, wherein the event condition is an operating condition that is not monitored by an alarm sensor associated with the received initiated alarm used to create the condition-based alarm.

25. The system of claim 19, wherein the reprioritizing comprises dynamically changing a limit setting for said initiated alarm based on the reprioritization being an operating condition, and the reprioritizing further comprises prioritizing said initiated alarm based on the dynamically changed limit setting.

26. The system of claim 19, wherein the processor is further operable to perform alarm performance measurements, the alarm performance measurements comprising average alarm rate, maximum alarm rate, and percentage of time alarm rates exceed a threshold value.

27. The system of claim 19, wherein the suppressing comprises suppressing an alarm initiated by a shutdown activity.

28. The system of claim 19, wherein the suppressing comprises:

identifying a trigger alarm, wherein the trigger alarm is an alarm associated with a subsequently initiated alarm;

retrieving a set of expected alarms, the set of expected alarms comprising an alarm expected to be initiated subsequent to the trigger alarm;

identifying a set of triggered alarms, the set of triggered alarms comprising an alarm occurring subsequent to the trigger alarm and matching an alarm in the set of expected alarms;

identifying a set of untriggered alarms, the set of untriggered alarms comprising an alarm matching an alarm in the set of expected alarms and not received subsequent to the trigger alarm;

suppressing an initiated alarm when said alarm matches an alarm identified in the set of triggered alarms;

reporting the trigger alarm; and

reporting a fault alarm when an initiated alarm matches an alarm identified in the set of untriggered alarms.

29. The system of claim 19, wherein the suppressing comprises suppressing a transient alarm, the transient alarm being an alarm initiated during a known transitory event.

30. The system of claim 23, wherein the group alarm comprises a reprioritized alarm.

31. The system of claim 23, wherein the reprioritized alarm is a group alarm.

32. The system of claim 23, wherein the suppressed alarm is a group alarm.

33. The system of claim 19, wherein the suppressed alarm is a fleeting alarm.

34. The system of claim 19, wherein the suppressed alarm is a reprioritized alarm.

35. The system of claim 23, wherein the unsuppressed alarm comprises a group alarm.

36. The system of claim 19, wherein the unsuppressed alarm comprises a reprioritized alarm.

37. The system of claim 28, wherein the unsuppressed alarm comprises a trigger alarm.

38. A computing device for managing a plurality of alarms initiated by a plurality of alarm sensors, the computing device in communication with a network and a storage device comprising a database, wherein the database is configurable to store information comprising alarm information, an alarm prioritization matrix, and an initiated alarm, the computing device comprising:

a graphical display;

an interface operable to receive signals representing initiated alarms; and

a processor in communication with the graphical display and the interface, the processor operable to;

receive the plurality of initiated alarms;

prioritize the initiated alarms;

create a condition-based alarm, wherein the condition-based alarm is a new initiated alarm created when a received initiated alarm is determined to satisfy an event condition;

reprioritize an initiated alarm when said initiated alarm satisfies a reprioritization condition;

suppress an initiated alarm;

display, on the graphical display, an unsuppressed initiated alarm based on the prioritizing of said alarm; and

provide information comprising an operator action for the unsuppressed initiated alarm and an initiated alarm suppressed based on the unsuppressed initiated alarm.

39. The computing device of claim 38, wherein the prioritizing is based on the alarm prioritization matrix.

40. The computing device of claim 38, wherein the processor is further operable to reconfigure a dead band value for an initiated alarm based on a measurement response time associated with said initiated alarm.

41. The computing device of claim 38, further comprising creating a group alarm when two or more related initiated alarms are received, wherein the related initiated alarms comprise the same priority and a same initial operator response.

42. The computing device of claim 38, wherein the event condition is an operating condition that is not monitored by an alarm sensor associated with the received initiated alarm used to create the condition-based alarm.

43. The computing device of claim 38, wherein the reprioritizing comprises dynamically changing a limit setting for said initiated alarm from among initiated alarms based on the reprioritization being an operating condition, and the reprioritizing further comprises prioritizing said initiated alarm based on the dynamically changed limit setting.

44. The computing device of claim 38, wherein the processor is further operable to perform alarm performance measurements, the alarm performance measurements comprising average alarm rate, maximum alarm rate, and percentage of time alarm rates exceed a threshold value.

45. The computing device of claim 38, wherein the suppressing comprises suppressing an alarm initiated by a known shutdown activity.

46. The computing device of claim 38, wherein the suppressing comprises:

identifying a trigger alarm, wherein the trigger alarm is an alarm associated with a subsequently initiated alarm;

retrieving a set of expected alarms, the set of expected alarms comprising an alarm expected to be initiated subsequent to the trigger alarm;

identifying a set of triggered alarms, the set of triggered alarms comprising an alarm occurring subsequent to the trigger alarm and matching an alarm in the set of expected alarms;

identifying a set of untriggered alarms, the set of untriggered alarms comprising an alarm matching an alarm in the set of expected alarms and not received subsequent to the trigger alarm;

suppressing an initiated alarm when said alarm matches an alarm identified in the set of triggered alarms;

reporting the trigger alarm; and

reporting a fault alarm when an initiated alarm matches an alarm identified in the set of untriggered alarms.

47. The computing device of claim 38, wherein the suppressing comprises suppressing a transient alarm, the transient alarm being an alarm initiated during a transitory event.

48. The computing device of claim 41, wherein the group alarm comprises a reprioritized alarm.

49. The computing device of claim 41, wherein the reprioritized alarm is a group alarm.

50. The computing device of claim 41, wherein the suppressed alarm is a group alarm.

51. The computing device of claim 38, wherein the suppressed alarm is a reprioritized alarm.

52. The computing device of claim 38, wherein the suppressed alarm comprises a fleeting alarm.

53. The computing device of claim 41, wherein the unsuppressed alarm comprises a group alarm.

54. The computing device of claim 38, wherein the unsuppressed alarm comprises a reprioritized alarm.

55. The computing device of claim 46, wherein the unsuppressed alarm comprises a trigger alarm.