Hohai University

State Grid Jiangsu Electric Power Company

State Grid Jiangsu Electric Power Company Nanjing Power Supply Company

Nanjing Joint Institute for Atmospheric Sciences

Yong Li

Hao Wu

Wei Qian

Chunning Wang

Kai Li

Honghua Xu

Hongzhong Ma

Duanyang Liu

Hong Wu

Bingbing Chen

Yangliu Cui

Linyi Zhou

Baowen Liu

Yan Zeng

Shoupeng Zhu

Chengying Zhu

The disclosure provides a catenary icing detection method based on infrared imaging and meteorological monitoring. In the disclosure, infrared illumination is used to detect the target, real-time images of the target are obtained through an infrared imaging sensor, and meteorological data are synchronously obtained through a meteorological monitoring unit, and normalized fusion processing is performed; the data are stored in a front-end edge computing unit, and through the deep learning model, the states of water accumulation, snow accumulation and icing of the target are automatically identified, and then sent to a background system through a transmission unit.

Catenary icing detection method based on infrared imaging and meteorological monitoring

The present invention relates to a leak detection method for GIS based on vibration signals and belongs to the technical field of apparatus for detecting or reacting mechanical or electrical troubles. The method is carried out by the following steps: 1) Installing a vibration sensor on each connecting flange of each gas-tight chamber of the GIS; 2) Starting the GIS; 3) Acquiring the vibration signals of sensors when the GIS operation is stable after starting; 4) Doing de-noise processing on the collected vibration signal; 5) Doing 4-layer wavelet packet decomposition of the vibration signal after noise reduction to obtain the energy proportion of the vibration signal in each frequency band; 6) Analyzing the energy proportion of the vibration signal in each frequency band in step 5), Then alarm to notify the relevant personnel. Return to step 3) until the fault has been solved.

GIS leak monitoring method based on vibration signal

Growing community of inventors

Nanjing, China

Yong Li