Photovoltaic panel surface black spot test

What are spot defects in photovoltaic panels?

In the dataset used in this study, because black spots, dark spots, and dust would cause similar regional functions of photovoltaic panels to be damaged, these types of defects were collectively classified as spot defects.

How to detect photovoltaic cell defects on the edge?

Binhui et al. used electroluminescence images and GoogleNet to detect photovoltaic cell defects on the edge. Using electroluminescence images as defect datasets and GoogleNet as CNNs for defect detection networks.

How to detect hot spot defects in infrared image PV panels?

Aiming at the problem of difficult operation and maintenance of PV power plants in complex backgrounds and combined with image processing technology, a method for detecting hot spot defects in infrared image PV panels that combines segmentation and detection, Deeplab-YOLO, is proposed.

Are cell-cracks and hotspots a source of PV module defects?

Cell-cracks (23%) and hotspots (18%) are the most reported sources of PV module defects. The reviewed publications provide strong support for the claims that the I–V curve measurement is more handy, cost-effective, and provides instant feedback to verify the PV module condition.

What is photovoltaic surface defect detection?

Then, the network weights are used to identify and detect actual photovoltaic defects, thus providing a new concept for photovoltaic surface defect detection. For example, a convolutional neural network (CNN) can be used to extract defect features and help the network improve its ability to express defect feature information.

Can a deeplab-Yolo hot-spot defect detection method be used to detect PV panels?

This article proposes a Deeplab-YOLO hot-spot defect detection method that combines segmentation and detection with infrared images and based on the differences and features in the shape, size, and color of PV panels and hot spots. On the one hand, it can meet the accuracy of segmentation and enhance the edge features of the target.