Abstract:To address the limitations of low detection efficiency, insufficient accuracy, and high computational resource demands inherent in traditional electricity meter defect detection methods, this paper proposes a lightweight detection model based on an improved YOLOv11n architecture. This model reduces computational redundancy by replacing the original backbone network with MobileNetV4, significantly reducing the number of model parameters and computational load; a LBCC feature fusion network is designed to enhance multi-scale feature interaction while lightweighting the model, thereby improving detection accuracy; and the CGA attention mechanism is introduced to optimize the C3k2 module, enhancing the model"s ability to distinguish targets in complex backgrounds. Experimental results demonstrate that the improved model achieves an mAP of 98.1%. Compared to the original model, it reduces the number of parameters by 60.85%, computational complexity (FLOPs) by 47.62%, and model size by 51.20%, while simultaneously improving mAP by 1% point. Furthermore, the model meets real-time detection requirements. These findings confirm that the proposed approach significantly reduces computational resource demands while maintaining high detection accuracy..