Structure evaluation system, structure evaluation apparatus, and structure evaluation method
First Claim
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1. A structure evaluation system comprising:
- a plurality of sensors configured to detect an elastic wave generated from a structure;
a signal processor configured to acquire a reliability of the elastic wave on the basis of the elastic wave detected by the plurality of sensors; and
an evaluator configured to evaluate soundness of the structure on the basis of the acquired reliability,wherein the signal processor comprises a waveform shaping filter or a gate generation circuit,wherein the reliability is a value indicating a degree of unexpectedness of the latest data with respect to past statistical data,wherein the signal processor divides an evaluation region of the structure to be evaluated for soundness into a plurality of regions and acquires the reliability of the elastic wave in a region through which the elastic wave passes on a movement path of the elastic wave from a source of the elastic wave to the plurality of sensors among the plurality of regions.
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Abstract
According to an embodiment, a structure evaluation system has a plurality of sensors, a signal processor, and an evaluator. The sensors detect an elastic wave generated from a structure. The signal processor acquires a reliability from a source of the elastic wave to the plurality of sensors by performing signal processing on the elastic wave detected by the plurality of sensors. The evaluator evaluates the soundness of the structure on the basis of the acquired reliability.
19 Citations
17 Claims
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1. A structure evaluation system comprising:
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a plurality of sensors configured to detect an elastic wave generated from a structure; a signal processor configured to acquire a reliability of the elastic wave on the basis of the elastic wave detected by the plurality of sensors; and an evaluator configured to evaluate soundness of the structure on the basis of the acquired reliability, wherein the signal processor comprises a waveform shaping filter or a gate generation circuit, wherein the reliability is a value indicating a degree of unexpectedness of the latest data with respect to past statistical data, wherein the signal processor divides an evaluation region of the structure to be evaluated for soundness into a plurality of regions and acquires the reliability of the elastic wave in a region through which the elastic wave passes on a movement path of the elastic wave from a source of the elastic wave to the plurality of sensors among the plurality of regions. - View Dependent Claims (2, 3, 4, 5, 6, 9, 10, 11)
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7. A structure evaluation apparatus comprising:
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a signal processor configured to acquire a reliability of an elastic wave on the basis of the elastic wave generated from a structure; and an evaluator configured to evaluate soundness of the structure on the basis of the acquired reliability, wherein the signal processor comprises a waveform shaping filter or a gate generation circuit, wherein the reliability is a value indicating a degree of unexpectedness of the latest data with respect to past statistical data, wherein the signal processor divides an evaluation region of the structure to be evaluated for soundness into a plurality of regions and acquires the reliability of the elastic wave in a region through which the elastic wave passes on a movement path of the elastic wave from a source of the elastic wave to the plurality of sensors among the plurality of regions. - View Dependent Claims (12, 13, 14)
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8. A structure evaluation method comprising:
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a signal processing step of deriving a reliability of the elastic wave on the basis of the elastic wave detected by the plurality of sensor and an evaluating step of deriving soundness of the structure on the basis of the reliability acquired, the signal processing step is performed using a waveform shaping filter or a gate generation circuit, wherein the reliability is a value indicating a degree of unexpectedness of the latest data with respect to past statistical data, wherein the signal processing step includes dividing an evaluation region of the structure to be evaluated for soundness into a plurality of regions and acquiring the reliability of the elastic wave in a region through which the elastic wave passes on a movement path of the elastic wave from a source of the elastic wave to the plurality of sensors among the plurality of regions. - View Dependent Claims (15, 16, 17)
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Specification