Systems and methods for monitoring operative sub-systems of a vehicle

• US 9,916,702 B2
• Filed: 10/09/2014
• Issued: 03/13/2018
• Est. Priority Date: 10/09/2014
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Rudenko, Alexey, Lu, Tsai-Ching, Lee, Craig A., Betz, Franz David
• Primary Examiner(s): ARTHUR JEANGLAUD, GERTRUDE
• Application Number:
  US14/510,277
• Publication Number:
  US 20160104330A1
• Time in Patent Office: 1,251 Days
• Field of Search: 701 291, 701 314, 701 306, 701 297, 701 317, 701 337, 701 71, 702183
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005

Abstract

A vehicle may include at least one operative sub-system that includes at least one sensor configured to output one or more sensor signals related to the at least one operative sub-system. A monitoring system is in communication with the operative sub-system(s). The monitoring system is configured to correlate the one or more sensor signals with respect to time, compile initial statistics of the one or more sensor signals with respect to a plurality of variables; and correlate the plurality of variables.

Claims

1. A vehicle comprising:

at least one operative sub-system on or within the vehicle, wherein the at least one operative sub-system includes at least one sensor configured to output one or more sensor signals related to the at least one operative sub-system; and

a monitoring system in communication with the at least one operative sub-system, wherein the monitoring system is configured to;

(a) correlate the one or more sensor signals with respect to time, (b) compile initial statistics of the one or more sensor signals with respect to a plurality of variables of the at least one operative sub-system; and

(c) correlate the plurality of variables of the at least one operative sub-system.

2. The vehicle of claim 1, wherein the monitoring system comprises:

a data correlation unit that is configured to correlate the one or more sensor signals with respect to time;

an initial statistics compilation unit that is configured to compile the initial statistics; and

a variable correlation unit that is configured to correlate the plurality of variables.

3. The vehicle of claim 2, wherein the monitoring system further comprises a data filtering unit that is configured to filter one or both of irrelevant or out-of-range data from the one or more sensor signals.

4. The vehicle of claim 2, wherein the data correlation unit is configured to output a data table that correlates the one or more sensor signals with respect to time.

5. The vehicle of claim 2, wherein the initial statistics compilation unit is configured to output an initial statistics report that compiles the initial statistics of the one or more sensor signals with respect to the plurality of variables.

6. The vehicle of claim 5, wherein the initial statistics report includes at least the following statistics of the one or more sensor signals with respect to the plurality of variables:

a minimum value, a maximum value, a mean value, and a median value.

7. The vehicle of claim 2, wherein the variable correlation unit is configured to calculate maximal information coefficients (MICs) with respect to the plurality of variables, wherein the MICs represents a measure of a strength of an association between the plurality of variables of the at least one operative sub-system, and wherein the plurality of variables are separate and distinct from one another.

8. The vehicle of claim 2, wherein the variable correlation unit is configured to output tasks and compute MIC calculations for each of the tasks.

9. The vehicle of claim 8, wherein the variable correlation unit is configured generate separate and distinct tasks, wherein each of the task includes a two variable time series.

10. The vehicle of claim 8, wherein the variable correlation unit is configured to compute the MIC calculations using only one or more mappers without reducers.

11. The vehicle of claim 8, wherein the variable correlation unit includes a plurality of nodes, and wherein the variable correlation unit is configured to fairly distribute the tasks among the plurality of nodes.

12. The method of claim 8, wherein the computing MIC calculation operation comprises fairly distributing the tasks among the plurality of nodes.

13. A method of monitoring one or more operative sub-systems of a vehicle, the method comprising:

receiving one or more sensor signals from the one or more operative sub-systems of the vehicle;

correlating the one or more sensor signals with respect to time;

outputting a data table that correlates the one or more sensor signals with respect to time;

filtering one or both of irrelevant or out-of-range data from the one or more sensor signals;

compiling initial statistics of the one or more sensor signals with respect to a plurality of variables;

outputting an initial statistics report that compiles the initial statistics of the one or more sensor signals with respect to the plurality of variables; and

correlating the plurality of variables.

14. The method of claim 13, wherein the correlating the plurality of variables operation comprises calculating maximal information coefficients (MICs) with respect to the plurality of variables.

15. The method of claim 14, wherein the calculating MIC with respect to the plurality of variables operation comprises:

outputting tasks; and

computing MIC calculations for each of the tasks.

16. The method of claim 15, wherein the computing MIC calculations operation comprises using only one or more mappers without reducers.

17. A monitoring system in communication with at least one operative sub-system, wherein the monitoring system comprises:

a communication link that is configured to receive one or more sensor signals from the at least one operative sub-system;

a data correlation unit that is configured to correlate the one or more sensor signals with respect to time;

an initial statistics compilation unit that is configured to compile initial statistics of the one or more sensor signals with respect to a plurality of separate and distinct variables of the at least one operative sub-system; and

a variable correlation unit that is configured to correlate the plurality of separate and distinct variables of the at least one operative sub-system.

18. The monitoring system of claim 17, wherein the monitoring system is onboard a vehicle.

19. The monitoring system of claim 17, wherein the data correlation unit is configured to output a data table that correlates the one or more sensor signals with respect to time, and wherein the initial statistics compilation unit is configured to output an initial statistics report that compiles the initial statistics of the one or more sensor signals.

20. The monitoring system of claim 17, wherein the variable correlation unit includes a plurality of nodes and is configured to calculate maximal information coefficients (MICs) with respect to the plurality of separate and distinct variables of the at least one operative sub-system, wherein the variable correlation unit is configured to output tasks and compute MIC calculations for each of the tasks, wherein the variable correlation unit is configured to compute the MIC calculations using only one or more mappers without reducers, and wherein the variable correlation unit is configured to fairly distribute the tasks among the plurality of nodes.