• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2000.11a
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• pp.169-173
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• 2000

현재 컨테이너 터미널에서 사용되고 있는 하역 장비들은 크게 하역작업을 수행하는 크레인과 컨테이너를 운반하는 트레일러, 컨테이너의 하역상태를 파악하는 모니터링 시스템으로 구분할 수 있다. 각각의 장비들은 수동으로 동작되며, 모니터링 시스템에서는 컨테이너의 위치 및 수량 등을 파악한다. 이런 시스템 하에서는 모든 항만 하역 장비들을 사람이 일일이 수동으로 조작함으로써 많은 인력이 필요하다. 또한, 각 하역장비들의 상태를 평면적인 2차원 화면으로만 보여주므로써 모니터링 시스템에 대한 현실감이 떨어진다. 이와 같은 단점을 보완하기 위해 컨테이너를 자동으로 운반하는 AGV를 도입하고 트랜스퍼 크래인과 컨테이너 크레인의 일부분을 자동화하여 작업능률을 향상시키고, 여기에 3차원으로 표현된 VR 시스템을 도입하여 각 하역장비들에 대한 세세한 동작까지를 모니터링함으로써 사용자가 현장에 있는 것과 유사한 느낌을 가질 수 있도록 하였다. 본 논문에서는 이러한 3차원 VR시스템과 모형으로 만들어진 AGV와 컨테이너 크레인, 트랜스퍼 크레인간의 유기적인 데이터 송,수신 및 안정적인 통신을 위해 데이터 포맷에 대한 연구를 하였다. 이런 데이터 포맷의 결정은 손실 없는 통신을 보장하며 나아가 정확한 모니터링을 보장할 것이다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.05a
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• pp.73-73
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• 2004

현대 산업기술발달과 구조변화는 각 국에서 생산되는 제품과 원자재 등의 상호교역을 더욱 활발하게 하였다. 이러한 수요 증대에 부응하기 위하여 각 국에서는 물자의 원활한 운송과 처리를 위한 연구가 계속 이루어지고 있는 실정이며, 최근에는 규격화된 컨테이너를 이용하여 한 번에 많은 양의 물류를 여러 국가로 운반할 수 있는 초대형 컨테이너선과 이를 항만에서 양ㆍ적하 하기 위한 컨테이너 크레인과 같은 항만하역장비에 관한 연구가 활발하게 진행되고 있다.(중략)

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.06a
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• pp.1622-1625
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• 2003

RMQC, rail mounted quay crane, lifts and moves large container by means of hoist and trolley motion on the dock. Our company is trying to develop advanced RMQC applying the concepts of elevator hoist and container conveyer for the automation and high efficiency in handling the boxes. Prior to the development of new products, it is necessary to check the capacity of conventional crane for reference. The program simulates container-handling rates and gives some design factors for the conventional cranes.

• Proceedings of the KSME Conference
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• 2004.04a
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• pp.1109-1113
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• 2004

RMQC, rail mounted quay crane, lifts and moves large container by means of hoist and trolley motion on the dock. Our company is trying to develop advanced RMQC applying the concepts of elevator hoist and container conveyer for the automation and high efficiency in handling the boxes. Prior to the development of new products, it is necessary to check the capacity of the new systems using simulation program. The program simulates container-handling rates and gives some design factors for the new-type cranes.

• Journal of Navigation and Port Research
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• v.38 no.5
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• pp.493-501
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• 2014

An automated lifting vehicle(ALV) used in an automated container terminal is a type of unmanned vehicle that can self-lift a container as well as self-transport it to a destination. To operate a fleet of ALVs efficiently, one needs to be able to determine a minimum-time route to a given destination whenever an ALV is to start its transport job. To find a route free from any collision or deadlock, the occupation time of the ALV on each segment of the route should be carefully scheduled to avoid any such hazard. However, it is not easy because not only the travel times of ALVs are uncertain due to traffic condition but also the operation times of cranes en route are not predicted precisely. In this paper, we propose a routing method based on an ant colony optimization algorithm that takes into account these uncertainties. The result of simulation experiment shows that the proposed method can effectively find good routes under uncertainty.

• Journal of Korea Port Economic Association
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• v.38 no.3
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• pp.133-149
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• 2022

The Port logistics is a pivotal industry in strengthening competitiveness for countries and companies and plays an important role in accounting for the majority of Korea's import and export volume, so its importance among Korea's industries is truly enormous. The port, which plays such an important role, is simultaneously unloaded, transferred into the dock, and stored, and it can be said that it is composed of a very complex flow. In particular, port unloading is an environment in which port unloading workers cannot escape the risk of disasters as large cargoes and cranes for container transport move, and numerous disasters are hidden and lead to serious disasters. Through literature studies on the Serious Accident Penalty Act, this study investigated how the Serious Accident Penalty Act affected port unloading workers and whether there was a change in satisfaction with safety education according to the enforcement of the Serious Accident Penalty Act. Through this study, it was found that port unloading workers were more aware of safety than managers in cognitive, attitude, and experience factors. Since the port unloading manager is not put into the unloading work, the perception of safety was analyzed to be lower than that of workers. Since managers should educate workers on safe work and be alert to safety, it seems that port unloading managers will also need to change their perception of safety. The Act on the Punishment of Severe Disasters took effect on January 27, 22, and in the early stages of the enforcement of the law, many confusing and ambiguous parts are found for those in charge of performing practical tasks on the front line until the law is settled. It seems necessary to revise the Act on the Punishment of Severe Disasters for the purpose of clear standards for the law and no safety accidents in the field to prevent confusion in work. In addition, in order to derive more meaningful research results in the future, it is expected that research on the perception of disasters by workers and managers will be continuously needed by deepening literature research to find various factors and using investigation methods such as interviews.