Implementation of Image Processing in Studying Contact Conditions of Overhead Contact Line-Pantograph at 400 km/h

초록

As an overhead contact line contacts the pantograph of an electric railway to supply electricity, it is operated after its electrical and mechanical safety features are examined. This study investigates a technology for examining the contact condition between the pantograph and the overhead contact line by using image processing. Contact condition images between the pantograph and the overhead contact line were obtained using a video device installed on the roof of a train, and the contact condition was tested between Iksan Station and Jeongeup Station of the Honam high-speed railway in the velocity range of 100-400 km/h. Images between the pantograph and the overhead contact line were used to recognize the feature points of the pantograph, and the moving displacement of the contact strip was detected using a Hough transform. The detected displacement was represented as a frequency through the zero crossing and a Fourier transform, and then its relationship with the arcing between the overhead contact line and the pantograph was analyzed.

키워드