Connecting Plate Screw Loosening Recognition of Medium #br# and Low Speed Maglev Contact Rail Based on YOLO v2 and OTSU

doi:10.3969/j.issn.1006-2475.2019.09.021

Abstract

Abstract: To deal with the screw looseness of connecting plate of medium and low speed maglev contact rail, a recognition method based on YOLO v2 network and OTSU is proposed. First, YOLO v2 network is used to locate the connecting plate. Then, the head of the screw is further localized on the connecting plate area. This paper uses OTSU to segment the screw head and the edge of the connecting plate. Finally, the status of the screw could be judged by the distance from the head of the screw to the edge of the connecting plate which is normalized by the width of the screw head. The experimental result shows that the method can accurately identify the looseness of the connecting plate screws.

Key words: medium and low speed maglev contact rail, screw looseness, YOLO v2, OTSU

CLC Number:

U216.3

CHEN Jian-xiong， NING Hang. Connecting Plate Screw Loosening Recognition of Medium #br# and Low Speed Maglev Contact Rail Based on YOLO v2 and OTSU[J]. Computer and Modernization, doi: 10.3969/j.issn.1006-2475.2019.09.021.

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