• 한국항해항만학회지
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• 제31권7호
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• pp.605-611
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• 2007

In order to become a mega hub port, major ports all over the world are making every effort to enhance their productivity through efficiency of internal operation. Accordingly, in order to enhance the competitiveness of a container terminal, an automated container terminal is considered as the best alternative. An automated container terminal is using such automated handling equipment as AGV(Automated Guided Vehicles) and ATC(Automated Transfer Crane). The efficient equipment operation plays a critical role in enhancing the productivity of an automated container terminal. In an automated container terminal, the most important equipments are AGV and ATC. Each block of containers with a vertical layout is generally operating two ATCs. The two ATCs can be crossed or not at each block. In the case of operating crossover ATC, it has an advantage of high flexibility that ATC work is possible at both TP(Transfer Point) of each block. But it has also a disadvantage that the yard has to be operated at a low storage level of containers in the terminal yard. Recently, for automated container terminals, which are being prepared for opening in Korea, they plan to use uncrossed twin ATC in order to make the storage level of their yards high at a low cost. Therefore, studies have to be made in order to increase the efficiency of twin ATC system based on the flexibility that the crossover ATC system has. This research aims to suggest an operation strategy to improve efficiency of twin ATC at each storage block in a yard.

• 한국항해항만학회지
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• 제32권9호
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• pp.737-742
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• 2008

In this paper, we deal with an allocation model of vertical type container yard for minimizing the total ATC (Automated Transfer Crane) working time and the equivalence of ATC working load in each block on automated container terminal. Firstly, a layout of automated container terminal yard is shown The characteristic of equipment which work in the terminal and its basic assumption are given Next, an allocation model which concerns with minimizing the total working time and the equivalence of working load is proposed for effectiveness of ATC working in automated container terminal. Also, a weight values on critical function are suggested to adjust the critical values by evaluating the obtained allocation plan. For ATC allocation algorithm, we suggest a simple repeat algorithm for on-line terminal operation.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.74.1-74
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• 2001

In this paper, we deal with an allocation model of vertical type container yard for minimizing the total ATC work time and the equivalence of ATC work´s load in each block on automated container terminal. Firstly, a layout of automated container terminal yard is shown. The characteristic of equipment which is operated in the terminal and basic assumption are given. Next, an allocation model which concerns with minimizing the total work time and the equivalence of work´s load is proposed for the effectiveness of ATC work in automated container terminal. Also, a weight values on critical function are suggested to adjust the critical values by evaluating the obtained allocation plan. To find the solution of allocation model in given terminal yard situation, a GA is applied, where the real information of container is used ...

• 한국정보시스템학회:학술대회논문집
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• 한국정보시스템학회 2004년도 춘계학술대회
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• pp.122-137
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• 2004

Automation of a container terminal is a world-wide tendency nowadays. The interest of ACT (Automated Container Terminal) is increasing more and more because of necessity of container terminal with higher competitive power and ultramodern equipment to down the cost and up the efficiency. ECT (Europe Combined Terminals) and CTA (Container Terminal Altenwerder) have studied a detailed technique for the operation of ACT. In Korea, many projects related to the development of ACT are working at present. However, indiscreet introduction of ACT may cause tremendous loss. Thus it is much important thing that we search relevant automation level or type for an environment In this study, we propose the necessary strategy in developing ACT through analyzing the present condition, automated equipments and property of operation at advanced An. If the strategy is applied in development of domestic ACT, we'll be able to build ACT with higher competitive power.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2000년도 추계학술대회논문집
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• pp.121-129
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• 2000

In this paper, we discuss how to operate a buffer yard in an automated container terminal, which will be used for resolving the difficulties to which the interaction between external manned trucks and internal unmanned equipment led. The determination of fleet size of material handling equipment is an important issue in designing of buffer yard in automated container terminals. This research also addresses the issue of determining buffer capacities through simulation. By using response surface methodology (RSM) for efficient experimentation, the optimal combination of design parameters under applicable operational strategies is obtained.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2023년도 춘계학술대회
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• pp.59-60
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• 2023

컨테이너 터미널의 자동화는 항만 경쟁력을 좌우하는 중요한 요소로 글로벌 선진항만은 컨테이너 터미널 자동화를 통해 경쟁력을 강화하는 추세이다. 자동화 터미널의 필수 이송 장비인 AGV의 운영 효율화는 자동화 터미널의 생산성을 제고할 수 있다. 자동화 컨테이너 터미널에서의 AGV 운영은 기존 컨테이너 터미널의 이송 장비 운영과는 다르게, 지정된 경로에 따라 주행하는 등 자동화 시스템을 기반으로 운영되어 작업부하 및 교착, 충돌 등과 같은 문제들을 고려하여야 한다. 이러한 요소들을 방지하고 AGV 운영 효율화를 지향하기 위해서는 보다 정교한 모델이 필요하다. 따라서, 본 논문에서는 터미널 내 AGV 주행경로 및 작업 배정 상황을 고려한 AGV 스케줄링 모형을 제안한다. 해당 모형은 교착 상황에 대한 문제를 예방하고 AGV 대수 및 작업 개수 변경으로 다양한 Case를 생성해 AGV 주행상황을 만들어 알고리즘과 최적해 분석을 통해 제안한 알고리즘을 평가한다.

• 한국항해항만학회지
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• 제30권4호
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• pp.277-283
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• 2006

It is a world trend to construct large terminal and develop automated container terminal to attract Super Post-Panamax and provide service which is based on differentiation. In fact, there is insufficient research for automatization of terminal gate since the automatization of current constructed container terminal is only focused on increasing productivity and unmanned system through the automatization of quay, yard, etc. In this paper, we have investigated advantage/disadvantage of existing gate operation systems and compared each gate operation system in the aspect of raising terminal image and the productivity. For the specific study, we have used data from actual terminal gate operation and RFID model business sponsored by MOMAF (Ministry of Maritime Affairs and Fisheries). As a result, this paper carried out an efficient gate operation system and it has been expected that it will be performed as groundwork of automated gate operation system which is for design of container terminal and improvement of gate operation system.

• 한국시뮬레이션학회논문지
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• 제17권4호
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• pp.29-39
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• 2008

최근 본선작업의 대기시간을 단축할 수 있는 효율적인 이송장비로 ALV(Automated Lifting Vehicle)가 연구되고 있다. 그러나 ALV와 다른 하역장비의 연계에 대한 구체적인 분석을 수행한 후 동적 요소들을 반영한 연구는 미흡하다. ALV의 수행도는 동적 환경하의 자가하역 작업, 차량간 방해, 가용한 작업 공간의 점유에 크게 좌우된다. 그러므로 ALV 시스템이 도입된 컨테이너 터미널의 생산성을 평가하는 것은 매우 어렵다. 따라서ALV시스템에 적합한 운영 규칙을 갖춘 시뮬레이션 모형으로 개발되어야 한다. 또한 모형은 연계작업과 차량 주행의 특성을 고려해야 한다. 본 연구는 수평형 컨테이너 터미널을 가정하고 하역작업 과정을 분석하고 시뮬레이션 모형에 필요한 주요 운영 규칙을 제시하였다. 그리고 객체지향 시뮬레이션 소프트웨어인 Anylogic을 이용하여 ALV 시스템에 기반한 컨테이너 터미널 시뮬레이션 모형을 개발하였다.

• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 2005년도 춘계학술대회 논문집
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• pp.74-81
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• 2005

In this study, we introduce a 3D simulation model to support the design on ACT(Automated Container Terminal) using 3D animation. The developed simulation model simulate virtual operations of ACT and animate the simulated results with real time. We provide several validation points for the design of ACT. And the developed system applied an object-oriented design and C++ programming to increase the reusability and extensibility. We can perform the various simulation experiment and analyze performances to estimate the required number of equipment using developed simulation model.

• 한국시스템다이내믹스연구
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• 제7권2호
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• pp.121-132
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• 2006

A container terminal should concentrate on efficient terminal operation in the long view and analyze an effect through introduction of hi-technology, automated equipments and intelligent information system, when they want to improve their reliability and competitive power in intense global competition. To do this, first this study finds out factors which affect competitive power of a container terminal, and relation between them. And then we used System Dynamics method to analyze an effect according to a value fluctuation of the factors in the long term.