Inspection of State of Registration Devices Based on Machine Vision and 3D Point Cloud
Research purposes:In order to solve the problem of long-time consumption of manual inspection of the state of registration device of overhead contact line,a state inspection system for the registration devices is created that is able to collect efficiently the high-definition image acquisition and is integrating the modeling technology with 3D point cloud.Research conclusions:(1)An image processing system for collecting high-tech registration devices and technology for rapid,dynamic and intelligent recognition of state of registration device are developed;(2)Based on the linear features and high-resolution 2D images of the steady arm,the Hough transform under constraint conditions is applied to inspect the targets of registration,and through the straight line fitting of the 3D point cloud,the processing and angle calculation for the three-dimensional data of the registration device are performed,improving the measurement accuracy and efficiency under strong light and cloudy days;(3)The created state inspection system for registration devices is adaptable for inspection of working conditions during the day and at night,providing a new way for intelligent patrol inspection of the overhead contact line.