Affiliations: [a] State Grid Fujian Electric Power Research Institute Co., Ltd., Fuzhou, Fujian, China | [b] State Grid Fujian Electric Power Co., Ltd., Fuzhou, Fujian, China
Correspondence:
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Corresponding author: Teng Ma, State Grid Fujian Electric Power Research Institute Co., Ltd., Fuzhou, Fujian, China. E-mail: pszym101787@163.com.
Abstract: The multi-scale object detection algorithm based on deep learning is a common method for safety monitoring in current power operation scenarios, which is of great significance to ensuring the safety of power operations. For certain power applications with high real-time requirements, the computational complexity of deep learning models may become a bottleneck. Deploying deep learning models requires high-performance hardware support, such as GPUs, which might not be easily achievable in some power field environments. According to the characteristics of common safety monitoring tasks in power operation scenarios, this paper proposes an automatic structured pruning method for multi-scale object detection algorithms. This method is designed for the safety monitoring of single and fixed-scale targets, effectively reducing the complexity of inference calculations and improving the frames per second (FPS) of real-time object detection without compromising accuracy. Furthermore, the proposed method can adaptively perform automatic structured pruning for targets of different scales. Experiments conducted using the YOLOv5 model demonstrate that the proposed method improves inference speed by approximately 20% for safety monitoring tasks without reducing detection accuracy.
Keywords: Power scene, multi-scale object detection, automatic structured pruning, model optimization
