水电站智能巡检机器人技术的应用

Application of Intelligent Inspection Robot Technology for Hydropower Station

针对传统基于人工抽水蓄能站裂缝与渗水检测成本过高、检测精度难以保证等问题,文中设计了一套基于机器视觉的巡检机器人系统。构建综合交叉熵与Dice代价函数的卷积神经网络,建立基于总像素准确率、交并比与F1-score的评价函数,确保准确检测常见裂缝。为了验证机器人巡检系统的有效性,文中检验了卷积神经网络,并与常见的计算机视觉方法与人工检测方法进行性能对比。对比结果证明,文中构建的神经网络在检测准确性与检测效率方面均有明显进步。

In view of the high cost of crack and seepage detection in the traditional artificial pumped storage station and the difficulty of ensuring the detection accuracy,a set of inspection robot system based on machine vision is designed in this study.A convolutional neural network which combines cross entropy and dice cost function is constructed,and an evaluation function based on total pixel accuracy,cross parallel ratio and F1-score is established to ensure the accurate detection of common cracks.In order to verify the effectiveness of the designed robot inspection system,convolutional neural network is tested in this study,and its performance is compared with common computer vision methods and manual detection methods.The comparison results show that the neural network constructed in this study has obvious progress in detection accuracy and detection efficiency.