The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 26, 2022
Filed:
Dec. 31, 2020
State Grid Hubei Electric Power Research Institute, Hubei, CN;
Hunan University, Hunan, CN;
Xueming Zhou, Hubei, CN;
Danhui Hu, Hubei, CN;
Xiaopo Mao, Hubei, CN;
Jungang Yin, Hunan, CN;
Jianjin Fu, Hubei, CN;
Zhiqiang Feng, Hubei, CN;
Yaodong Zhang, Hubei, CN;
Zeqi Huang, Hubei, CN;
Tianru Shi, Hubei, CN;
State Grid Hubei Electric Power Research Institute, Wuhan, CN;
Hunan University, Changsha, CN;
Abstract
An infrared zero value diagnosis method and system for a porcelain insulator string are provided. The method includes: collecting an infrared thermogram of a to-be-diagnosed porcelain insulator string; extracting temperature of an iron cap of each insulator in the infrared thermogram of the to-be-diagnosed porcelain insulator string; calculating a temperature gradient value of each insulator in the to-be-diagnosed porcelain insulator string, drawing a temperature gradient distribution curve, and generating a temperature gradient distribution matrix of all to-be-diagnosed porcelain insulator strings; calculating a correlation coefficient of the temperature gradient distribution curve and a correlation coefficient of an average-value curve for each insulator string, and presenting the correlation coefficients in a scatter diagram; and performing comprehensive analysis and determining on the temperature gradient distribution curve, the temperature gradient distribution matrix of the to-be-diagnosed porcelain insulator strings, and the scatter diagram, to complete detection of the to-be-diagnosed porcelain insulator string.