METHOD FOR REAL-TIME MODEL BASED STRUCTURAL ANOMALY DETECTION
First Claim
1. A method for real-time model based vehicle structural anomaly detection, comprising:
- receiving a real-time measurement corresponding to a location on a vehicle structure during an operation of the vehicle;
comparing the real-time measurement to expected operation data for the location to provide a modeling error signal;
calculating a statistical significance of the modeling error signal to provide an error significance;
determining a persistence of the error significance; and
indicating a structural anomaly, if the persistence exceeds a persistence threshold value.
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Abstract
A system and methods for real-time model based vehicle structural anomaly detection are disclosed. A real-time measurement corresponding to a location on a vehicle structure during an operation of the vehicle is received, and the real-time measurement is compared to expected operation data for the location to provide a modeling error signal. A statistical significance of the modeling error signal to provide an error significance is calculated, and a persistence of the error significance is determined. A structural anomaly is indicated, if the persistence exceeds a persistence threshold value.
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Citations
20 Claims
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1. A method for real-time model based vehicle structural anomaly detection, comprising:
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receiving a real-time measurement corresponding to a location on a vehicle structure during an operation of the vehicle; comparing the real-time measurement to expected operation data for the location to provide a modeling error signal; calculating a statistical significance of the modeling error signal to provide an error significance; determining a persistence of the error significance; and indicating a structural anomaly, if the persistence exceeds a persistence threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A real-time model based structural anomaly detection system, comprising:
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a structural anomaly detection module operable to; receive a real-time measurement corresponding to a location on a vehicle structure during an operation of the vehicle; compare the real-time measurement to expected operation data for the location to provide a modeling error signal; calculate a statistical significance of the modeling error signal to provide an error significance; determine a persistence of the error significance if the error significance is below a selected Pfa threshold value; and indicate a structural anomaly, if the persistence exceeds a persistence threshold value; and an anomaly mitigation module operable to activate a control mechanism to compensate for the structural anomaly, if the structural anomaly is indicated. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method for alleviating a structural anomaly, comprising:
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obtaining a modeling error signal of a structure; assessing a probability that the modeling error signal is significantly away from zero by computing a Probability of False Alarm (Pfa) to provide an error significance; inputting a unity signal to a first order filter when the error significance falls below a Pfa threshold value; and indicating a structural anomaly condition when an output of the first order filter is sufficiently close to one. - View Dependent Claims (20)
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Specification