• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.241-245
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• 2003

This paper introduces a method that can derive information about the movement of a spreader and skew in order to drive ALS(Automatic Landing System) in the crane used at a harbor. Some methods that use LDL Corner detectors a kind of 2D Laser scanner sensor or Laser distance measuring units to obtain the information in ALS are used presently. But these have some defects in economic efficiency and performance. Therefore, to correct these defects, we propose a method to acquire the information for the movement of a spreader, skew and sway angle using CCD camera image data and Laser distance measuring unit data.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 한국항해항만학회 1998년도 추계학술대회논문집:21세기에 대비한 지능형 통합항만관리
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• pp.167-174
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• 1998

Recently several researches of high speed container ship and loading system are mainly accomplished in U.S.A. and Japan. Its shipping service is not realized but it is realized in near future. To effective use of the feature and efficiency of them, quay, loading/unloading. yard operation system, port management system and connection transport system must be well integrated and operated. Specially, loading /unloading speed of container crane is important for making effective use of them. To speed up loading/unloading system, RO-RO and LO-LO methods that are mostly exclusive system are studied on the container crane with special structure and mechanism to handle individual container or bundle of containers. In this paper these methods are shown. When new high speed loading system of container is desighed, the realistic constrains must be considered.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 대한산업공학회/한국경영과학회 2006년도 춘계공동학술대회 논문집
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• pp.1178-1185
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• 2006

컨테이너 터미널에서의 생산성은 본선작업의 효율성과 밀접한 관련이 있다. 효율적인 본선작업을 위한 첫 번째 단계는 선석에서 컨테이너를 취급하는 장비인 안벽크레인(Quay Crane : QC)에 대하여 효율적인 작업일정계획을 수립하는 것이다. 일반적으로 안벽크레인의 작업일정계획은 선박내의 장치계획에 관한 정보와 장치장의 장치현황정보등 많은 정보를 활용해야 하며, 선박의 안정성과 크레인의 작업용이성 등 다양한 제약사항을 고려하여야 한다. 따라서 본 연구에서는 인공지능기법 중 최적에 가까운 해를 찾아주는 탐색기법인 GRASP(Greedy Randomized Adaptive Search Procedure)를 적용하여 실제 현장에서 적용 가능한 안벽크레인 작업일정계획기법을 제안하였다. 또한, 컨테이너 터미널의 실제 자료를 수집하여 제안된 메타휴리스틱 알고리즘의 성능을 분석하였다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 한국정밀공학회 2003년도 춘계학술대회 논문집
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• pp.1688-1692
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• 2003

The automatic Landing system is used for the automatic functions of automatic transfer crane in the automated container terminal. It confirms and adjusts the alignment and pose between spreader and container and accomplishes the automatic loading/unloading job of containers in yard. Specially, it is required in the automated container terminal and is well adapted under the coarse external environments. This system used the laser sensors to recognize the alignment between spreader and container. In this paper the algorithm of recognition of the alignment and pose is presented and the result of its simulation is shown.

• Proceedings of the KIEE Conference
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• 대한전기학회 2015년도 제46회 하계학술대회
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• pp.1481-1482
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• 2015

This paper is aimed to handle quick work for all the workers and to improve the productivity by adding more effective content in Crane Management System(CMS). The basic of rapid service is the improvement of productivity, the information of operation as to the productivity of crane for the quick handling within yard and especially the informations of breakdown and to handle breakdown as soon as possible has a great effect on the increase of productivity.

• Proceedings of the KIEE Conference
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• 대한전기학회 2001년도 하계학술대회 논문집 D
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• pp.2546-2548
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• 2001

The contributing proportion of the increase of port productivity is more increasing concerning not only the port industry, but also all the informations of container crane which is the representative equipment by the rapid increase of the volume of freight of port. The basic of rapid service is the improvement of the productivity, the information of operation as to the productivity of crane for the quick handling within yard and especially the informations of breakdown and to handle breakdown as soon as possible has a great effect on the increase of productivity.

• Journal of the Korea Society of Computer and Information
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• 제7권1호
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• pp.62-67
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• 2002

Construction of automated terminal is urgently demanded to gain the foundation of hub-port in north east Asia. Therefore I suggest an adequate operating system model of automated terminal in Korea. In this paper the aim of automated terminal operating system is satisfied, four basic models are divided according to moving course of export and import cargo of each automated equipments, several input data are changed and analyzed dynamically by Trial and Error method, and then an optimized operating system model is designed. It is a Premise that all the yard equipments described in this paper must be automatic except quay crane.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 한국항해항만학회 2012년도 추계학술대회
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• pp.94-96
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• 2012

터미널의 경쟁력 제고, 터미널 생산성 향상이 중요한 요소라고 할 수 있다. 이러한 생산성에 영향을 줄 수 있는 요인은 다양하다. 그 중 야드 이송장비의 경우, 특정 선석크레인(QC, Quay Crane)에 야드 트랙터(YT, Yard Tractor)가 고정 할당되는 방식에서 다수 QC들의 작업을 처리하는 풀링 시스펨 방식으로 전환으로 터미널 생산성과 YT의 가용성을 높일 수 있다.

• Journal of Navigation and Port Research
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• 제41권3호
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• pp.149-154
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• 2017

Recently, container terminal operators have made efforts to develop an efficient remarshalling plan in response to the increase in automation of equipment handling and transport of containers in the terminals. Usually, containers are handled by multiple AYCs(automated yard cranes) in-yard in an automated container terminal, and terminal operators establish a remarshalling plan using slack time to increase the efficiency of ship operation. This study develops the optimal mathematical model through mixed integer programming as a solution to the problem of dispatching multiple AYCs. Considering the difficulty of direct application to the field due to computation time, we analyze the five prototypical dispatching rules for real world adaptation. A numerical experiment found that the maximum weight ratio (MR) rule and the maximum weight (MW) rule are the ideal dispatching solutions to the multiple AYCs dispatching problem.

• Journal of Navigation and Port Research
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• 제44권3호
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• pp.219-226
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• 2020

The container terminal operators established a re-marshalling plan to reduce the loading operation time and the release operation time. Re-marshalling is to rearrange the containers in the container yard to the advantageous position to shorten the working time using the spare time of the automated yard crane. This study assumed the automated container terminal with a perpendicular layout and deals with the inter-bay re-marshalling planning problem in a yard block. The inter-bay re-marshalling plan determines the container to be moved, the location to be relocated, and the sequence of relocation operations. This study presents a mixed integer programming model that simultaneously determines the storage location and the operation sequence while satisfying the spatial availability during the re-marshalling. Numerical experiments are conducted to understand re-marshalling operation using a beam search method.