Power Plant Indicator Light Detection System Based on Improved YOLOv5

Electricity plays a vital role in daily life and economic development. The status of the indicator lights of the power plant needs to be checked regularly to ensure the normal supply of electricity. Aiming at the problem of a large amount of data and different sizes of indicator light detection, we propose an improved You Only Look Once vision 5 (YOLOv5) power plant indicator light detection algorithm. The algorithm improves the feature extraction ability based on YOLOv5s. First, our algorithm enhances the ability of the network to perceive small objects by combining attention modules for multi-scale feature extraction. Second, we adjust the loss function to ensure the stability of the object frame during the regression process and improve the convergence accuracy. Finally, transfer learning is used to augment the dataset to improve the robustness of the algorithm. The experimental results show that the average accuracy of the proposed squeeze- and-excitation YOLOv5s (SE-YOLOv5s) algorithm is increased by 4.39% to 95.31% compared with the YOLOv5s algorithm. The proposed algorithm can better meet the engineering needs of power plant indicator light detection. © 2022 Beijing Institute of Technology. All rights reserved.