Research on GIS Isolation Switch Position Recognition System Based on Image Processing

The opening and closing state of GIS isolation switch contact is an important parameter in GIS operating state. Aiming at the problems of dark GIS light and easy reflection of metal moving contact, this paper designs a GIS isolation switch opening and closing state recognition system based on image processing. The system includes image acquisition module, acquisition board and backend online monitoring system, which can collect high quality images of GIS isolation switch and judge its opening and closing state in real time. In addition, this paper proposes a GIS isolation switch on and off state recognition algorithm based on the largest connected component, which is verified on the 252kV smart GIS prototype. The results show that the system designed in this paper has strong robustness, and the recognition accuracy of the switch opening and closing can reach 80.56%.