DETECTION SYSTEM, SIGNAL PROCESSING DEVICE, DETECTION METHOD, AND COMPUTER PROGRAM PRODUCT
First Claim
1. A detection system comprising:
- a detection device configured to detect a change that occurs in a structure or a change in an environment related to the structure;
an acoustic emission sensor configured to detect an acoustic emission wave produced from the structure; and
a processing unit configured to perform first signal processing to process an acoustic emission signal indicating the acoustic emission wave, which is input from the acoustic emission sensor until a first period of time elapses after a detection signal is input from the detection device, the detection signal indicating that a change has occurred in the structure or the environment related to the structure.
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Accused Products
Abstract
According to an embodiment, a detection system includes a detection device, an acoustic emission sensor, and a processing unit. The detection device detects a change that occurs in a structure or a change in an environment related to the structure. The acoustic emission sensor detects an acoustic emission wave produced from the structure. The processing unit performs first signal processing to process an acoustic emission signal indicating the acoustic emission wave, which is input from the acoustic emission sensor until a first period of time elapses after a detection signal is input from the detection device. The detection signal indicates that a change has occurred in the structure or the environment related to the structure.
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Citations
15 Claims
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1. A detection system comprising:
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a detection device configured to detect a change that occurs in a structure or a change in an environment related to the structure; an acoustic emission sensor configured to detect an acoustic emission wave produced from the structure; and a processing unit configured to perform first signal processing to process an acoustic emission signal indicating the acoustic emission wave, which is input from the acoustic emission sensor until a first period of time elapses after a detection signal is input from the detection device, the detection signal indicating that a change has occurred in the structure or the environment related to the structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A signal processing device connected to a detection device and to an acoustic emission sensor, the detection device being configured to detect a change that occurs in a structure or a change in an environment related to the structure, the acoustic emission sensor being configured to detect an acoustic emission wave produced from the structure, the signal processing device comprising:
a processing unit configured to perform first signal processing to process an acoustic emission signal indicating the acoustic emission waves, which is input from the acoustic emission sensor until a first period of time elapses after a detection signal is input from the detection device, the detection signal indicating that a change has occurred in the structure or the environment related to the structure.
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14. A detection method performed by a signal processing device connected to a detection device and to an acoustic emission sensor, the detection device being configured to detect a change that occurs in a structure or a change in an environment related to the structure, the acoustic emission sensor being configured to detect an acoustic emission wave produced from the structure, the method comprising:
performing first signal processing to process an acoustic emission signal indicating the acoustic emission waves, which is input from the acoustic emission sensor until a first period of time elapses after a detection signal is input from the detection device, the detection signal indicating that a change has occurred in the structure or the environment related to the structure.
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15. A computer program product comprising a non-transitory computer-readable medium including programmed instructions, wherein the instructions causes a computer, which is connected to a detection device and to an acoustic emission sensor, the detection device being configured to detect a change that occurs in a structure or a change in an environment related to the structure, the acoustic emission sensor being configured to detect an acoustic emission wave produced from the structure, to function as:
a processing unit configured to perform first signal processing to process an acoustic emission signal indicating the acoustic emission wave, which is input from the acoustic emission sensor until a first period of time elapses after a detection signal is input from the detection device, the detection signal indicating that a change has occurred in the structure or the environment related to the structure.
Specification