IHHA 2013 - K. Nayebi, H. Braren, S. Williams, "Application of Machine Vision Technology in Coupler Securement Inspection," presented at the International Heavy Haul Conference, New Delhi, India. 2013
In this paper, we present two machine vision based systems that are designed to inspect coupler securements in an effort to prevent derailments caused by such failures. Application of machine vision technology in the rolling stock inspection has been in rise in recent years. Inspection of Wheels, Brake Shoes, Friction Wedge and Springs, Safety appliances, Coupler Securements and other train components have proven quite successful.
We discuss the case for two coupler securement inspection systems deployed in a number of North American class 1 railroads. Basic concept of both systems along with the fundamentals of their algorithms and performance results are presented.