Posco Yard Crane Automation
نویسندگان
چکیده
This paper describes an integrated approach for crane automation at the Kwangyang steel works, POSCO. Unmanned cranes are composed of several technologies,which include anti-sway control, precision position control, optimal trajectory computation, and coil shape recognition. Crane position while traveling and the traverse axis are controlled by PID position controllers. In order to prevent swaying during crane operation, the sway angle is consistently suppressed from the start point to the destination using an anti-sway algorithm. For optimal trajectory control, 3-axis motion was analyzed and variable speed drives were used. A 3D object recognition system for picking up coils, based on stereo vision, is in progress. Some of the described control strategies have been successfully applied to the 10-1 crane in the No. 4 CGL (Continuous Galvanizing Line) of the Kwangyang steel works, POSCO. Substantial cost reduction and improved productivity are expected benefits of crane yard automation. Copyright c ©2005 IFAC
منابع مشابه
Yard crane scheduling in port container terminals using genetic algorithm
Yard crane is an important resource in container terminals. Efficient utilization of the yard crane significantly improves the productivity and the profitability of the container terminal. This paper presents a mixed integer programming model for the yard crane scheduling problem with non- interference constraint that is NPHARD in nature. In other words, one of the most important constraints in...
متن کاملYard Crane Pools and Optimum Layouts for Storage Yards of Container Terminals
As more and more container terminals open up all over the world, competition for business is becoming very intense for container terminal operators. They are finding out that even to keep their existing Sea Line customers, they have to make them happy by offering higher quality service. The quality of service they can provide depends on their operating policies and the design of the terminal la...
متن کاملThe simultaneous reshuffle and yard crane scheduling problem in container terminals
This paper studies the simultaneous reshuffle and yard crane scheduling problem in the yard of container terminals, which is one of the key logistics problems affecting the operation efficiency in container terminals. Although the reshuffle scheduling problem has received many research attention due to its importance, the problem without considering yard crane is not very practical, which is be...
متن کاملAdvances in Container Cranes Automation
This paper summarizes the most important advances of the used crane control technology in perspective of automatic operation of container cranes. Faster and more productive container cranes demands highly efficient yard system. Storage capacity is the limitation for most terminals today; automatic operation offers optimum stacking density and peak capacity equivalent for continuous manning of e...
متن کاملEffect of block length and yard crane deployment systems on overall performance at a seaport container transshipment terminal
Keywords: Container terminal Maritime shipping Block length Yard crane deployment Simulation Terminal design Gross crane rate As more and more container terminals open up all over the world, terminal operators are discovering that they must increase quay crane work rates in order to remain competitive. In this paper we present a simulation study that shows how a terminal's long-run average quay...
متن کامل