Visual inspection method of transmission line connection pipe based on morphological characteristics
Connection pipe is an important transmission line tooling used for large distance transmission wire connection,its crimping quality and internal structure are hidden engineering,once the connection pipe fails,the entire transmission line may break,leading to extreme accident.Therefore,to ensure the normal and stable operation of transmission lines need to regularly repair and maintain the transmission line connection pipe,before the operation,the first task is to locate the connection pipe.Based on this,this paper proposes a visual inspection method based on geometric morphological features of transmission line splice tube,which can indirectly characterize the appearance of the splice tube according to the contour and edge detection,locate the area of the connection pipe in the image by straight line detection,and locate the image bumps with obvious changes in grayscale in each direction by corner point detection.In this paper,we extract the contour features,edge features,straight-line features,and corner point features of the tube and fuse them to locate and detect the tube.Finally,using OpenCV computer vision function library and NumPy mathematical function library for algorithm simulation research,simulation results show that based on geometric morphological features can achieve the detection and identification of the connection tube and meeting power operation and maintenance requirements.
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