Maintenance systems and methods for use in analyzing maintenance data

• US 9,396,592 B2
• Filed: 08/05/2013
• Issued: 07/19/2016
• Est. Priority Date: 08/05/2013
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Chapman, Steven David, Lake, Peter J., McCullough, Jay Kevin
• Primary Examiner(s): Bonzo, Bryce
• Assistant Examiner(s): Amoroso, Anthony J
• Application Number:
  US13/959,425
• Publication Number:
  US 20150039177A1
• Time in Patent Office: 1,079 Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/24578 using ranking
• CPC Class Codes: G06F 16/248 Presentation of query results
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005
• CPC Class Codes: G07C 5/085 using electronic data carriers

Abstract

Methods and maintenance systems for use in analyzing data related to maintenance of at least one vehicle are disclosed. One example method includes retrieving, by a computing device, a plurality of diagnostic entries associated with at least one fault message from a database of diagnostic entries, each diagnostic entry including an identified corrective action and a date on which the identified corrective action was taken; identifying a plurality of groups of diagnostic entries, wherein the diagnostic entries in a group have a same corrective action, and each group has a confidence level associated with its corrective action; and weighting the confidence level for each group based on an age of the plurality of diagnostic entries in the group.

Claims

1. A method for use in analyzing data related to maintenance of at least one vehicle, said method comprising:

retrieving, by a computing device, a plurality of diagnostic entries associated with at least one fault message from a database of diagnostic entries, each diagnostic entry including an identified corrective action and a date on which the identified corrective action was taken;

identifying a plurality of groups of diagnostic entries, wherein the diagnostic entries in a group have a same corrective action;

weighting a confidence level associated with each group'"'"'s corrective action based on an average age of the plurality of diagnostic entries in the group using a decay function;

displaying, to a user, a plurality of suggested corrective actions to facilitate the user remedying the at least one fault message by performing at least one corrective action of the plurality of suggested corrective actions, wherein the displayed plurality of suggested corrective actions includes the corrective action with the greatest weighted confidence level.

2. The method of claim 1, wherein weighting the confidence level associated with each group'"'"'s corrective action based on an average age of the plurality of diagnostic entries in the group using a decay function comprises weighting the confidence level associated with each group'"'"'s corrective action based on an average age of the plurality of diagnostic entries in the group using a linear decay function.

3. The method of claim 1, wherein displaying, to the user, the plurality of suggested corrective actions comprises displaying, to the user, the plurality of suggested corrective actions and the weighted confidence level of each suggested corrective action.

4. The method of claim 1, wherein weighting the confidence level associated with each group'"'"'s corrective action based on an average age of the plurality of diagnostic entries in the group using a decay function comprises weighting the confidence level associated with each group'"'"'s corrective action based on an average age of the plurality of diagnostic entries in the group using a Gaussian function.

5. The method of claim 4, wherein weighting the confidence level associated with each group'"'"'s corrective action based on an average age of the plurality of diagnostic entries in the group using a Gaussian function comprises weighting the confidence level associated with each group'"'"'s corrective action based on an average age of the plurality of diagnostic entries in the group to produce a weighted confidence level by multiplying the confidence level for the group by a weighting factor determined for that group by

6. The method of claim 5, wherein “

a”

has a value of 1 and “

b”

has a value of 0.

7. The method of claim 6, wherein “

c”

has a value of about 4.25.

8. The method of claim 1, further comprising determining a confidence indicator for each group'"'"'s corrective action as a product of the weighted confidence level for the group'"'"'s corrective action and a number of diagnostic entries in the group.

9. A maintenance system for use in analyzing data related to maintenance of at least one vehicle, said maintenance system comprising:

a display device;

a memory device storing a plurality of diagnostic entries, each diagnostic entry including at least one fault message, an identified corrective action, and a date; and

a processor coupled to said memory device and said display device, said processor configured to;

identify a plurality of groups of diagnostic entries from the plurality of diagnostic entries, wherein the diagnostic entries in a group have a same corrective action; and

determine a weighting factor for each group of the plurality of groups based on an average age of the diagnostic entries in the group using a decay function;

apply the weighting factor for each group to a confidence level associated with the corrective action of the group to determine a weighted confidence level for the corrective action; and

display, on the display device, a plurality of suggested corrective actions to facilitate a user remedying the at least one fault message by performing at least one corrective action of the plurality of suggested corrective actions, wherein the displayed plurality of suggested corrective actions includes the corrective action with the greatest weighted confidence level.

10. The maintenance system of claim 9, wherein said processor is configured to determine the weighting factor for the at least one group based on an average age of the diagnostic entries in the group using a linear decay function.

11. The maintenance system of claim 9, wherein said processor is configured to display, on the display device, the weighted confidence level of each suggested corrective action.

12. The maintenance system of claim 9, wherein said processor is configured to determine the weighting factor for the at least one group based on an average age of the diagnostic entries in the group using a Gaussian function.

13. The maintenance system of claim 12, wherein said processor is configured to determine the weighting factor for each group by

14. The maintenance system of claim 9, wherein the vehicle is an aircraft.

15. The maintenance system of claim 9, further comprising determining a confidence indicator for each group'"'"'s corrective action as a product of the weighted confidence level for the group'"'"'s corrective action and a number of diagnostic entries in the group.

16. One or more non-transitory computer-readable storage media having computer-executable instructions embodied thereon, wherein when executed by at least one processor, the computer-executable instructions cause the processor to:

identify a plurality of groups of diagnostic entries from a plurality of diagnostic entries, wherein each diagnostic entry includes at least one fault message, an identified corrective action, and a date, and wherein the diagnostic entries in a group have a same corrective action; and

determine a weighting factor for each group based on an average age of the plurality of diagnostic entries in the group using a decay function;

determine a confidence level associated with the corrective action of each group of diagnostic entries;

apply the weighting factor for each group to the confidence level associated with the corrective action of the group to determine a weighted confidence level for the corrective action; and

display, on a display device, a plurality of suggested corrective actions to facilitate a user remedying the at least one fault message by performing at least one corrective action of the plurality of suggested corrective actions, wherein the displayed plurality of suggested corrective actions includes the corrective action with the greatest weighted confidence level.

17. The one or more non-transitory computer-readable storage media of claim 16, wherein when executed by the at least one processor, the computer-executable instructions further cause the processor to determine the weighting factor for each group based on an average age of the plurality of diagnostic entries in the group using a linear decay function.

18. The one or more non-transitory computer-readable storage media of claim 16, wherein when executed by the at least one processor, the computer-executable instructions further cause the processor to display, on the display device, the weighted confidence level of each suggested corrective action.

19. The one or more non-transitory computer-readable storage media of claim 16, wherein when executed by the at least one processor, the computer-executable instructions further cause the processor to determine the weighting factor for each group based on an average age of the plurality of diagnostic entries in the group using a Gaussian function.

20. The one or more non-transitory computer-readable storage media of claim 16, wherein when executed by the at least one processor, the computer-executable instructions further cause the processor to determine the weighting factor for each group by