• Title/Summary/Keyword: 야드 크레인

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컨테이너 터미널에서 무인 야드 크레인을 위한 원격작업 인원 산정

  • Park, Yeong-Man;Bae, Jong-Uk
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2013.06a
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    • pp.74-76
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    • 2013
  • 컨테이너 터미널은 비용 절감과 생산성 향상을 위해 무인 야드 크레인을 운영하고 있다. 그러나 무인 야드 크레인이 상하차 작업을 안전하고 원활하게 수행하기 위해서는 작업자의 원격 통제가 필요하다. 상하차 작업은 다수의 야드 크레인에게 불규칙적으로 발생하며 다수의 원격 통제 작업자들은 교대로 작업 요청을 배정받아 원격 작업을 수행한다. 본 연구는 상하차 작업의 적정 서비스 수준을 고려하여 작업인력 비용과 대기비용의 합을 최소화하는 인력 산정 방법을 다루었다. 대기이론을 이용하여 원격작업 인력과 비용 요소의 변화에 따른 작업대기를 분석하였다.

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Development of Infrared-Ray Communication System for Position Recognition of Yard Tractor in Container Terminal (컨테이너터미널 내의 야드 트랙터 위치인식을 위한 적외선 통신시스템 개발)

  • Hong, Dong-Hee;Kim, Chang-Gon
    • Journal of Digital Convergence
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    • v.11 no.1
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    • pp.211-223
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    • 2013
  • In Korea, the location of yard tractors is figured out in real time by using RFID system in container terminals. However, even though the location recognition of RFID system works fine when transfer crane is in yard operation, there are some problems when container crane is in ship operation. That is because yard tractors come one by one to each transfer crane in an order, but yard tractors come in 4 lanes to the container crane, which makes the system impossible to recognize each yard tractor separately. Therefore, we developed the infrared-ray communication system which can recognize yard tractors accurately in not only in the yard operation of transfer crane but also in the ship operation of container crane in same way in this study. The result in this study showed constant number of recognition, and the range of recognition measures 5.7m in 25m distance. The range of recognition shown in this study is enough to recognize each yard tractor passing under container crane separately.

The Efficiency Determinants to Port Cargo Equipment on Container Terminals to DEA & Tobit Model (DEA와 Tobit 모형에 따른 컨테이너 터미널의 하역장비 효율성 결정요인)

  • Park, Hong-Gyun
    • Journal of Korea Port Economic Association
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    • v.26 no.3
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    • pp.1-17
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    • 2010
  • This paper focuses on measuring the efficiency of container yards in container terminals in Busan and Gwangyang using Data Envelopment Analysis (DEA) approach. It analyses the relative efficiency of 11 container terminals based on the data for the period between 2006 and 2009 to offer a fresh perspective. The applied framework assumes inputs to be container cranes, transtainer cranes and yard tractors and output as container transshipment volume. Through the analysis, the differences between the impact of using of container cranes, transtainer cranes and yard tractors, top handler & reach stacker on container yard efficiency are measured. Moreover, the associations between the three input factors are analyzed as well. This paper also employs heteroscedastic Tobit model to show the impact of explanatory variables on container yard efficiencies. I took into consideration the strategies for operation of container cranes, transtainer cranes and yard tractors in container yard.

컨테이너 터미널에서 다수 야드 크레인의 이적작업 일정계획

  • Park, Yeong-Man
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2015.07a
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    • pp.169-170
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    • 2015
  • 최근 컨테이너 터미널에서는 환적화물의 증가로 터미널내의 이적작업이 증가함에 따라 효율적인 이적작업 계획을 수립하고자 노력하고 있다. 본 연구는 블록내에서 다수의 야드 크레인이 운영되고 있는 경우에 주어진 시간내에 각 크레인 별 최적 이적작업 계획을 수립하는 문제에 대한 혼합정수법을 이용한 최적 수리모형을 제시하였다. 또한 실제 터미널에서 빠른 시간 안에 이적작업계획을 수립할 수 있는 발견적 기법을 제시하고 다양한 수치예제 실험을 통하여 유용성을 검증하였다.

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Deployment of Yard Cranes Considering Storage Plans in Container Terminals (컨테이너 터미널에서 장치계획을 고려한 야드 크레인 배치 문제)

  • Won, Seung-Hwan;Kim, Kap-Hwan
    • Journal of Navigation and Port Research
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    • v.33 no.1
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    • pp.79-90
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    • 2009
  • The main function of a container terminal is to load container freights into vessels and discharge them from vessels. The container terminal needs to utilize its resources effectively in order to improve the productivity of it. This study deals with the deployment model for yard cranes whose type is RMGC (rail mounted gantry crane). We develop a mathematical model for the deployment of yard cranes. The model considers not only the deployment but also the storage plans. It could be divided into two cases according to whether inter-block movements of yard cranes are allowed or not, during the same period Numerical examples are solved and analyzed to validate the model. Then, additional experiments are performed to compare the performance of the model with that of a previous model without the re-deployment of yard cranes.

An Estimate of the Required Number of Yard Tractor in Container Terminal (컨테이너터미널의 야드 트랙터 소요대수 추정)

  • Choi, Yong-Seok;Kim, Woo-Sun;Ha, Tae-Young
    • Journal of Navigation and Port Research
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    • v.28 no.6
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    • pp.549-555
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    • 2004
  • The purpose of this study is to estimate the required number of yard tractor on port container terminal. The number of yard tractor is the bottleneck factor on the efficiency of container terminal. Due to the change in travel speed and travel distance, the efficiency is difficult to estimate. The efficiency of yard tractor is estimated by the proposed simulation model that developed considering the queueing network between container crane and transfer crane. The number of yard tractor per container crane is estimated by the alternative analysis. And to determine the number of yard tractor per container crane, the performance measure such as the distance between berth and yard, the speed of yard tractor are simulated.

Remarshalling Planning for Multiple Automated Yard Cranes Considering Slack Time (여유시간을 고려한 다수 자동화 야드 크레인의 이적작업 일정계획)

  • Park, Young-Man
    • Journal of Navigation and Port Research
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    • v.41 no.3
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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.

Application of Simulation Technique to the Optimal Design and Operation of the Automated Container Terminals (자동화컨테이너터미널의 설계 및 운용 최적화를 위한 시뮬레이션 기법의 적용)

  • 장성용
    • Proceedings of the Korea Society for Simulation Conference
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    • 1998.10a
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    • pp.25-35
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    • 1998
  • 정부는 자동화컨테이너터미널을 구축하기 위한 기초연구를 수행하고 있다. 자동화컨테이너터미널은 선박하역을 담당하는 컨테이너 크레인과 애드크레인을 무인 혹은 유/무인 자동제어가 가능하도록 설계하고 선박과 야드간 이동은 AGV를 이용하여 자동화함으로써 생산성 향상, 인건비 절감 등을 목표로 하고 있다. 본 연구에서는 1척의 선박이 접안할 수 있는 가상의 자동화컨테이너터미널에서 컨테이너 크레인 수, AGV 대수, 야드 크레인수 등을 변화시켜가면서 터미널의 생산량을 추정할 수 있는 시뮬레이션 모델을 개발하여 제시하였다. 또한 향후 자동화컨테이너터미널의 최적 설계 및 운영을 위한 시뮬레이터를 개발하기 위한 구상을 제시하였다.

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Applying Ultra-WideBand Location System to Yard Crane (UWB위치인식 시스템의 야드 크레인 적용)

  • Park, Dae-Heon;Kang, Bum-Jin;Park, Jang-Woo;Cho, Sung-Eon
    • Journal of Advanced Navigation Technology
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    • v.12 no.3
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    • pp.215-219
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    • 2008
  • Recently, a container shipping volume has increased dramatically and continued on a trend of rapid growth, and so the number of container handled at the port increase. therefore, it's increasing about concern of harbor automatism to save distribution costs in harbor. harbor automatism classifies into four large automatism's, gate automatism by using RFID that trailer come with burdening the container to be loaded on ships go though with RFID and Quay-Side container crane automatism that treats cargos loading on ships and automatism of CG that loads containers from yard, and automatism of container transporters that carries containers in between gates. To increase the using efficiency of harbor, detecting exact location of yard crane is very important matter. In this paper, propose about yard crane automatism applied UWB Location system and the development direction.

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The Study suitable for Ultra-WideBand Location System in Yard Crane System (야드 크레인 시스템에서 UWB위치인식 시스템 적용연구)

  • Park, Dae-Heon;Kang, Bum-Jin;Park, Jang-Woo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2007.10a
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    • pp.907-910
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    • 2007
  • Recently, a container shipping volume has increased dramatically and continued on a trend of rapid growth, and so the number of container handled at the port increase. therefore, it's increasing about concern of harbor automatism to save distribution costs in harbor. harbor automatism classifies into four large automatism's, gate automatism by using RFID that trailer come with burdening the container to be loaded on ships go though with RFID and Quay-Side container crane automatism that treats cargos loading on ships and automatism of CG that loads containers from yard, and automatism of container transporters that carries containers in between gates. To increase the using efficiency of harbor, detecting exact location of yard crane is very important matter. In this paper, it intends to discuss about yard crane automatism applied UWB Ranging system and bring up the development direction.

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