Method for detecting and identifying internal defects of in-operation high-voltage cable through X-ray digital imaging

The invention discloses a method for detecting and identifying internal defects of an in-operation high-voltage cable through X-ray digital imaging, which comprises the following steps of: (1) starting an X-ray detection system, and acquiring an original image of a sequence X-ray detection cable; (2...

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Main Authors ZHANG SAIPENG, SI CHANGJIAN, LIN HAIDAN, CUI TIANCHENG, LIU ZUOMING, ZHAI GUANQIANG, LUAN JINGYAO, LI SHOUXUE, YANG DAIYONG, GAO CHANGLONG, JIANG HAO, ZHAO CHUNMING, LIU GUIMEI, CHEN JIEYUAN, DONG HONGDA, JIANG LU, JIN PENG, LIE JIANPING, TAI YUFENG, LI JIASHUAI, YOO HYUK, JIAO LIXIN, GE ZHICHENG, XU WENXIE, LIU DAN, LIU JUNBO, QIAN ERGANG, YU QUNYING
Format Patent
LanguageChinese
English
Published 22.07.2022
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Abstract The invention discloses a method for detecting and identifying internal defects of an in-operation high-voltage cable through X-ray digital imaging, which comprises the following steps of: (1) starting an X-ray detection system, and acquiring an original image of a sequence X-ray detection cable; (2) rejecting improper pictures; (3) identifying contour lines of different material areas by using gray level step, and extracting images of different areas of the cable; (4) de-noising the images of the different regions by adopting a bilateral filtering optimization algorithm; (5) after the X-ray detection image is subjected to denoising processing, sequence images are subjected to multi-frame superposition, and the graphic morphological characteristics of the gray difference area are detected; and (6) establishing a high-voltage cable defect database according to the fault and detection data, and performing judgment according to comparison between the established high-voltage cable internal defect feature informa
AbstractList The invention discloses a method for detecting and identifying internal defects of an in-operation high-voltage cable through X-ray digital imaging, which comprises the following steps of: (1) starting an X-ray detection system, and acquiring an original image of a sequence X-ray detection cable; (2) rejecting improper pictures; (3) identifying contour lines of different material areas by using gray level step, and extracting images of different areas of the cable; (4) de-noising the images of the different regions by adopting a bilateral filtering optimization algorithm; (5) after the X-ray detection image is subjected to denoising processing, sequence images are subjected to multi-frame superposition, and the graphic morphological characteristics of the gray difference area are detected; and (6) establishing a high-voltage cable defect database according to the fault and detection data, and performing judgment according to comparison between the established high-voltage cable internal defect feature informa
Author DONG HONGDA
SI CHANGJIAN
LIU JUNBO
ZHANG SAIPENG
YANG DAIYONG
GAO CHANGLONG
LIU GUIMEI
JIAO LIXIN
LIU ZUOMING
QIAN ERGANG
XU WENXIE
LI SHOUXUE
GE ZHICHENG
LIN HAIDAN
TAI YUFENG
LIU DAN
ZHAI GUANQIANG
YOO HYUK
LI JIASHUAI
ZHAO CHUNMING
CHEN JIEYUAN
YU QUNYING
LIE JIANPING
JIANG HAO
LUAN JINGYAO
CUI TIANCHENG
JIANG LU
JIN PENG
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RelatedCompanies STATE GRID JILINSHENG ELECTRIC POWER SUPPLY COMPANY ELECTRIC POWER RESEARCH INSTITUTE
NANJING ZHUOSHI ELECTRICAL CO., LTD
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Snippet The invention discloses a method for detecting and identifying internal defects of an in-operation high-voltage cable through X-ray digital imaging, which...
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COUNTING
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INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
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Title Method for detecting and identifying internal defects of in-operation high-voltage cable through X-ray digital imaging
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