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公开(公告)号：US11703457B2
公开(公告)日：2023-07-18
申请号：US17135999
申请日：2020-12-29
Applicant: Industrial Technology Research Institute
Inventor： Yi-Heng Yang , Cheng-Yang Tsai , Li-Hua Wang , Tsann-Tay Tang , Te-Ming Chen
CPC classification number: G01N21/8851 , G01S17/86 , G01S17/89 , G06N20/00 , G06T7/0002 , G06T17/00 , G01N2021/8887 , G06T2207/10028 , G06T2207/20084
Abstract: The disclosure provides a structure diagnosis system and a structure diagnosis method. The structure diagnosis system includes: a lidar scanner scanning a structure to generate a point cloud data; an input interface receiving the point cloud data; and a processor receiving the point cloud data and generating a point cloud data set. The processor executes a surface degradation and geometry abnormal coupling diagnosis module to: marking a first point cloud range of a surface degradation area according to color space value of the point cloud data set; marking a second point cloud range of a geometry abnormal area according to coordinate value of the point cloud data set; when an abnormal area includes the first point cloud range and the second point cloud range at least partially overlapping each other, determining surface degradation or geometry abnormal occurring at the abnormal area and mark the abnormal area with a predetermined mode.
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公开(公告)号：US20200209196A1
公开(公告)日：2020-07-02
申请号：US16235650
申请日：2018-12-28
Applicant: Industrial Technology Research Institute
Inventor： Yao-Long Tsai , Tai-Ping Tsai , Li-Hua Wang , Yi-Tsung Pan
Abstract: A sound source device and a signal receiver are disposed at first and second ports of a target object, respectively. A sound of a specific frequency of the sound source device is introduced into the target object to generate a resonant sound wave. A computer simulates a signal generated when the resonant sound wave is received by the signal receiver and regarding the signal as reference information. The reference information comprises first data having characteristics of the resonant sound wave, and data having features of an imaginary defect formed on the target object. The features of the imaginary defect correspond to the characteristics of the resonant sound wave. When the target object has a real defect, the sound of the specific frequency of the sound source device is introduced into the target object. Features of the real defect are derived by comparing the first data with the second data.
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Patent Agency Ranking
公开(公告)号：US12203890B2
公开(公告)日：2025-01-21
申请号：US17830859
申请日：2022-06-02
Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Inventor： Hung-Chih Chang , Yao-Long Tsai , Li-Hua Wang
Abstract: An acoustic resonance diagnostic method for detecting structural degradation is provided. The method includes steps as follows: Firstly, a training model is built using a deep neural network. At least two training acoustic signals are inputted to the training model to carry a training. A diagnostic model is built according to a result of the training using a CNN. A plurality of under-test sound wave signals are captured from an under-test section of an under-test structure. An AI is used to filter data invalid for detecting structural degradation from the under-test sound wave signals. A structural degradation state of the under-test section is determined according to a remaining portion of the under-test sound wave signals through the diagnostic model.
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公开(公告)号：US11525811B2
公开(公告)日：2022-12-13
申请号：US16235650
申请日：2018-12-28
Applicant: Industrial Technology Research Institute
Inventor： Yao-Long Tsai , Tai-Ping Tsai , Li-Hua Wang , Yi-Tsung Pan
Abstract: A sound source device and a signal receiver are disposed at first and second ports of a target object, respectively. A sound of a specific frequency of the sound source device is introduced into the target object to generate a resonant sound wave. A computer simulates a signal generated when the resonant sound wave is received by the signal receiver and regarding the signal as reference information. The reference information comprises first data having characteristics of the resonant sound wave, and data having features of an imaginary defect formed on the target object. The features of the imaginary defect correspond to the characteristics of the resonant sound wave. When the target object has a real defect, the sound of the specific frequency of the sound source device is introduced into the target object. Features of the real defect are derived by comparing the first data with the second data.
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公开(公告)号：US10481037B2
公开(公告)日：2019-11-19
申请号：US15855944
申请日：2017-12-27
Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Inventor： Yao-Long Tsai , Li-Hua Wang
IPC: G01M3/28
Abstract: A method for detecting deterioration of a structural part includes: detecting a waveform of time domain of the structural part by a sensor disposed on the structural part; performing a conversion of time domain to frequency domain for the waveform of time domain by a processor electrically connected to the sensor so as to obtain an actual modal parameter of each of a plurality of modals related to a waveform of frequency domain of the structural part; comparing the actual modal parameter of each of the plurality of modals to modal parameter information stored in a database to determine whether a deterioration defect exists in the structural part; and determining a degree and a position of the deterioration defect when the deterioration defect exists in the structural part.
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公开(公告)号：US20220205926A1
公开(公告)日：2022-06-30
申请号：US17135999
申请日：2020-12-29
Applicant: Industrial Technology Research Institute
Inventor： Yi-Heng Yang , Cheng-Yang Tsai , Li-Hua Wang , Tsann-Tay Tang , Te-Ming Chen
Abstract: The disclosure provides a structure diagnosis system and a structure diagnosis method. The structure diagnosis system includes: a lidar scanner scanning a structure to generate a point cloud data; an input interface receiving the point cloud data; and a processor receiving the point cloud data and generating a point cloud data set. The processor executes a surface degradation and geometry abnormal coupling diagnosis module to: marking a first point cloud range of a surface degradation area according to color space value of the point cloud data set; marking a second point cloud range of a geometry abnormal area according to coordinate value of the point cloud data set; when an abnormal area includes the first point cloud range and the second point cloud range at least partially overlapping each other, determining surface degradation or geometry abnormal occurring at the abnormal area and mark the abnormal area with a predetermined mode.
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公开(公告)号：US10801914B2
公开(公告)日：2020-10-13
申请号：US16111033
申请日：2018-08-23
Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Inventor： Yao-Long Tsai , Li-Hua Wang
IPC: G01N29/44 , G01M3/24 , G01M3/28 , G01M5/00 , F17D5/02 , G01M7/00 , G01N29/04 , F17D1/08 , F16L55/07
Abstract: A method for detecting a deterioration defect of a structural part using a structural unit includes: defining a first base structural unit and obtaining N first base modal parameters of the first base structural unit; detecting a respective one of M first subject structural units of a subject structural part by each of M first sensors to obtain N first actual modal parameters of each of the M first subject structural units; calculating N first subject modal parameters of each of the M first subject structural units according to the N first actual modal parameters of each of the M first subject structural units and M*N first predetermined ratios; and comparing the N first subject modal parameters of each of the M first subject structural units to the N first base modal parameters to determine whether each of the M first subject structural units has a deterioration defect.
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