Abnormal vehicle dynamics detection
First Claim
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1. A method of evaluating a railroad vehicle, the method comprising:
- a computer system acquiring vibration data from a plurality of vibration sensing devices located at a plurality of locations along a path the railroad vehicle is traveling;
the computer system processing the vibration data to identify any anomalous vibration features, wherein the identifying includes determining that a vibration feature was detected by at least two of the plurality of vibration sensing devices at highly temporally coherent times;
in response to identifying a plurality of anomalous vibration features in the vibration data, the computer system evaluating the plurality of anomalous vibration features for an indication of a presence of at least one defect on the railroad vehicle, wherein the at least one defect produces signals as the railroad vehicle travels along the path; and
the computer system identifying the railroad vehicle as including a defect in response to identifying the indication of the defect on the railroad vehicle.
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Abstract
A solution for evaluating a vehicle, such as a railroad vehicle, is provided. Vibration data relating to the railroad vehicle can be acquired by vibration sensing devices located adjacent to a rail. Enhanced signal data can be generated from the vibration data acquired by the vibration sensing devices. The enhanced signal data can be evaluated for any anomalous features, such as vibration peaks. When multiple anomalous features are present, these features can be further evaluated to determine whether they indicate a presence of a defect on the railroad vehicle that is producing a periodic signal.
16 Citations
20 Claims
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1. A method of evaluating a railroad vehicle, the method comprising:
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a computer system acquiring vibration data from a plurality of vibration sensing devices located at a plurality of locations along a path the railroad vehicle is traveling; the computer system processing the vibration data to identify any anomalous vibration features, wherein the identifying includes determining that a vibration feature was detected by at least two of the plurality of vibration sensing devices at highly temporally coherent times; in response to identifying a plurality of anomalous vibration features in the vibration data, the computer system evaluating the plurality of anomalous vibration features for an indication of a presence of at least one defect on the railroad vehicle, wherein the at least one defect produces signals as the railroad vehicle travels along the path; and the computer system identifying the railroad vehicle as including a defect in response to identifying the indication of the defect on the railroad vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A railroad vehicle management system comprising:
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a plurality of vibration sensing devices located along a path railroad wheels travel, wherein the plurality of vibration sensing devices have a known spacing at a plurality of locations along the path; and a computer system including means for evaluating the railroad vehicle, wherein the means for evaluating is configured to; acquire vibration data from the plurality of vibration sensing devices; process the vibration data to identify any anomalous vibration features, wherein the identifying includes determining that a vibration feature was detected by at least two of the plurality of vibration sensing devices at highly temporally coherent times; in response to identifying a plurality of anomalous vibration features in the vibration data, evaluate the plurality of anomalous vibration features for an indication of a defect on the railroad vehicle; and identify the railroad vehicle as including a defect in response to identifying the indication of a defect on the railroad vehicle. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of evaluating a railroad wheel for a defect, the method comprising:
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a computer system acquiring vibration data from a plurality of vibration sensing devices located at a plurality of locations along a path the railroad wheel is traveling; the computer system processing the vibration data to identify any anomalous vibration features, wherein the identifying includes determining that a vibration feature was detected by at least two of the plurality of vibration sensing devices at highly temporally coherent times; and in response to identifying a plurality of anomalous vibration features in the vibration data, the computer system evaluating the plurality of anomalous vibration features for an indication of the defect on the railroad wheel based on a time spacing between the plurality of anomalous vibration features, wherein the defect produces signals on the path as the railroad vehicle travels along the path. - View Dependent Claims (17, 18, 19, 20)
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Specification