• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.11
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• pp.2313-2320
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• 2011

The management of a panel block shop in a shipyard is a complex process that entails the largest amount of work and in which many decisions are involved. Shipbuilders have considered the process as a bottleneck since every panel for every ship and offshore hull structure must be processed through the shop. In order to maximize process productivity, simulation-based ship production execution system(SPEXS) is proposed for panel block operations utilising discrete-event simulation and simulated annealing. An application of panel block assembly shop, called SPEX-Panel supports production planners by general dispatching rules and metaheuristics to make better scheduling decisions on the shop floor. In addition, the system will help increase productivity in the yard with continuous improvement.

• Journal of Digital Contents Society
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• v.12 no.3
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• pp.391-396
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• 2011

During the last 5 years, maritime safety navigation with IT has been a big issue. After the International Maritime Organization defines the e-Navigation strategy, various information on board can be integrated by their needs and aims. Especially, on-board information monitoring might use the single integrated display under consideration of user convenience. To do this, this paper suggests a user interface design guideline based on definition and analysis of the integration requirements and the existing commercial product.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.1
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• pp.175-182
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• 2013

The digitalization of sea level measurement recording which is recorded as analog type is useful for many related oceanology. In this paper, we propose a method which separates the graph area from a sea level measurement recording image. At first, a pixel that is regarded as the pixel which is included in the graph area is selected. Then, many background pixels are separated using the color of the selected pixel. In each vertical line, a pixel is determined as the pixel within the graph area and the graph area is separated from the image using that pixels. Experimental results show that the proposed method in this paper overcome drawbacks of the previous research and can separate the graph area which similar to the graph area of the original image.

• Journal of Korea Society of Digital Industry and Information Management
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• v.15 no.3
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• pp.45-53
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• 2019

Moving image sharing technology has developed various servers and programs for personal broadcasting. In this paper, we propose the method of transmitting the multiple moving image, including the output channel of external streaming server. It also implements and tests multiple real-time broadcast channel automatic transmission systems that assign multiple output channels to automatic output channels. As a result of the experiment, it is easy to allocate moving image to broadcast channels that are output through the external streaming server's output channels regardless of the size of the streaming server, enabling the management of efficient output channels at the time of transmission of multiple moving image. The moving image can be provided through streaming method regardless of the type of moving image from the moving image provider terminal, and the moving image transmission can be controlled in various ways, including adding and changing channels for which the moving image is sent, and sending delayed to the moving image.

• Journal of Korea Port Economic Association
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• v.40 no.1
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• pp.61-70
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• 2024

Despite the rapid expansion and diversification of the global ship repair and shipbuilding market, the domestic ship repair and shipbuilding industry is losing competitiveness due to a lack of infrastructure compared to its high technology level, concentration of new markets, aging technology personnel, lack of IT systems, and small businesses. Although attempts have been made to develop information systems at a very low level compared to other industries, there are few successful cases. Therefore, the purpose of this study is to understand the necessity of strategic integration and organizational integration from the perspective of informatization in the ship repair and shipbuilding industry through a survey of companies operating in Busan. After that, through face-to-face interviews with major repair shipyard companies in Busan, the direction of the development of the information system of the ship repair and shipbuilding industry was derived. The results of this study are expected to enhance the need for digital conversion of the ship repair and shipbuilding industry in the future and provide a significant direction for the establishment and application process of information systems.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.04a
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• pp.1608-1609
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• 2011

국토해양부에서는 건설사업의 생산성을 향상시키고 건설사업의 효율성을 제고하기 위해 건설기술관리법 제15조의 2에 따라 건설공사지원통합정보체계의 구성.운영에 관한 법률을 마련하고 1998년부터 건설사업정보화(Continuous Acquisition Life-Cycle Support : CALS)를 추진중에 있다. 건설사업정보화의 일환으로 건설공사비의 상당부분을 차지하고 개인의 소유권과 관계되어 있어 민원 소지가 많은 보상자료를 관리하기 위해 용지보상시스템이 기 개발되어 운영중에 있으나 보상비 지출의 핵심과정인 지급단계가 국가재정정보시스템과 별도로 운영중에 있어 체계적인 보상자료 관리 및 보상비 지급의 이력관리가 제대로 이루어지 지고 있지 않다. 이는 곧 부적절한 보상비 집행으로 인한 국고예산 낭비의 소지가 있고 보상비 집행에 대한 대민 신뢰도 저하로 인해 다수의 소송으로 이어질수 있다. 이에 기존의 보상비 집행업무 프로세스 개선 및 건설CALS 용지보상시스템과 디지털예산회계시스템의 연계를 통해 보상비 집행의 투명성을 확보하고 민원인들에게 대민행정에 대한 신뢰도를 높일 수 있는 방안을 제시하고자 한다.

• Journal of the Institute of Convergence Signal Processing
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• v.23 no.1
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• pp.37-43
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• 2022

Drones, one of the 4th industrial technologies that are expanding from military use to industrial use, are being actively used in the search missions of the National Police Agency and finding missing persons, thereby reducing interest in a wide area and the input of large-scale search personnel. However, legal review of police drone operation is continuously required, and the importance of advanced system for related operations and analysis of captured images in connection with search techniques is increasing at the same time. In this study, in order to facilitate recording, preservation, and monitoring in the concept of precise search and monitoring, it is possible to achieve high efficiency and secure golden time when precise search is performed by constructing spatial information based on photo rather than image data-based search. Therefore, we intend to propose a spatial information construction technique that reduces the resulting data volume by adjusting the unnecessary spatial information completion rate according to the size of the subject. Through this, the scope of use of drone search missions for large-scale areas is advanced and it is intended to be used as basic data for building a drone operation manual for police searches.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.8 no.8
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• pp.1620-1625
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• 2004

To advance fisheries, we set developmental directions of fishery information by grasping present situations and analyzing maritime & fisheries issues. We promote various policies through effective systematical information data bases, based on both control and utilization of oceanic resources. For these puposes, it is imperative that we set up fisheries communication networks. There are satellite assisted informational networks to assist fishing vessels with their marine based movements. However, there's no hope for poorly equipped fishermen to adopt this network because of extravagant network call charges. So we think that using existing SSB communication system is the best plan. We organize fishery communication network by HF SSB communication which doesn't have operational costs. We build wireless transmitting and receiving stations that are basic systems of informnation, and equip wireless data communication systems by the use of wireless communication network protocols in coastal stations. It is necessary that a fish boat has a terminal device for wireless data communication. In this research we can conclude that if we transmit the location of a fishing boat in-real time through GPS channels then we propose that some methods be formulated to able terminal devices on fishing boats to collect various types of information, such as meteorological and oceanic conditions.

• Journal of the Korean Society of Marine Environment & Safety
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• v.13 no.2 s.29
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• pp.133-140
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• 2007

Since early times, captain have been sailing to select the optimum route considering the weather, ship loading status condition and operational scheduling empirically. However, it is rare to find digitalized onboard route support system whereas weather facsimile or wave and swell chart are utilized for the officer, based on captain's experience. In this paper, optimal route safety assessment system which is composed of voyage efficiency and safety component is introduced. Optimum route minimizea ETA(estimated time of arrival) and fuel consumption that shipping company and captain are requiring to evaluate for efficient voyage considering speed loss and power increase based on wave added resistance of ship. In the view point of safety, seakeeping prediction is performed based on 3 dimensional panel method. Finally, It is assistance measure for ship's optimum navigation route safety planning & assessment.

• KIPS Transactions on Software and Data Engineering
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• v.12 no.2
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• pp.83-90
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• 2023

Blurred image is an important factor in lowering image recognition rates in Computer vision. This mainly occurs when the camera is unstablely out of focus or the object in the scene moves quickly during the exposure time. Blurred images greatly degrade visual quality, weakening visibility, and this phenomenon occurs frequently despite the continuous development digital camera technology. In this paper, it replace the modified building module based on the Deep multi-patch neural network designed with convolution neural networks to capture details of input images and Attention techniques to focus on objects in blurred images in many ways and strengthen the image. It measures and assigns each weight at different scales to differentiate the blurring of change and restores from rough to fine levels of the image to adjust both global and local region sequentially. Through this method, it show excellent results that recover degraded image quality, extract efficient object detection and features, and complement color constancy.