• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.36 no.3
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• pp.175-185
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• 2000

This paper described on a basic study to organize fishing vessel control system in order to control efficiently fishing vessel in Korean offshore. It was digitalized ARPA image on the fishing processing of a fleet of purse seiner in conducting fishing operation at Cheju offshore in Korea as a digital camera and then simulated by used VTMS. Futhermore, it was investigated on the application of FVTMS which can control efficiently fishing vessels in fishing ground. The results obtained were as follows ; (1) It was taken 16 minutes and 35 minutes to casting and hauling net in fishing processing respectively. The length of rope pulled by scout boat was 200m, tactical diameter in casting net was 340.8m, turning speed was 6kts as well. (2) The processing of casting and hauling net was moved to SW, NE as results of simulation when the current direction and speed set into NE, 2kts and SW, 2kts respectively. Such as these results suggest that can predict to control the fishing vessel previously with information of fishing ground, fishery and ship's maneuvering, etc. (3) The control range of VTMS radar used in simulation was about 16 miles. Although converting from a radar of the control vessel to another one, it was continuously acquired for the vector and the target data. The optimum control position could be determined by measuring and analyzing to distance and direction between the control vessel and the fleet of fishing vessel. (4) The FVTMS(fishing vessel traffic management services) model was suggested that fishing vessels received fishing conditions and safety navigation information can operate safely and efficiently.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.828-832
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• 2009

In this paper we suggest the technique to improve the reliability of U-Health system. The idea is that a video recoding start at only the emergency data of patients. This technique reduces the reliability of U-Health system. In the suggested U-Health system based on video control technique, bio sensors are used to send the state information of patients to a server. The server analyzes the health state of patients from base nodes and start video recoding and sends the video information about the patients in the emergent state to the nearest hospital.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2019.11a
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• pp.243-245
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• 2019

In the VTS, the predictions of vessel mobility and situation awareness of maritime environment are basic function. In recent years, pilotage information is an essential aware element of VTS personnel for vessel traffic management. So, we designed the structure of pilotage information service with VTS and tested in real environment. In the future, similar pilotage information can be used as a useful VTS service.

• The Bulletin of The Korean Astronomical Society
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• v.37 no.2
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• pp.190.2-190.2
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• 2012

과학기술위성3호는 170kg의 소형위성으로 2006년 사업을 착수하였으며, 올 2012년 12월에 러시아에서 발사할 예정이다. 주탑재체는 다목적 적외선 영상시스템 (MIRIS, Multi-Purpose IR Imaging System)으로 천문연에서 개발을 담당하였으며 우주관측과 지구관측을 수행한다. 부탑재체는 소형영상분광기 (COMIS, Compact Imaging Spectrometer)로 공주대에서 개발을 하였으며 지표면의 분광영상을 획득한다. 관측영상을 지상에서 내려 받아 사용자에게 배포를 하기 전 Radiometric, Geometric 보정을 수행하기 위해서는 관측영상 외에 관측할 때의 위성체 자세제어 정보도 함께 필요하다. 과학기술위성3호의 경우 우주관측은 관측영상 정보에 위성본체의 자세제어 정보도 함께 저장하기 때문에 지상에서 영상자료와 관제자료의 결합을 위해 추가로 수행하는 작업이 필요하지 않다. 그러나 지구관측은 영상자료와 자세제어 정보를 따로 저장하여 지상국으로 전송한다. 한곳의 영역만 관측 후 지상국으로 전송받는다면 문제가 발생하지 않지만, 지상국과 교신할 수 있는 궤도의 수는 한정되기 때문에 위성체의 메모리에는 여러 영역의 관측영상이 저장되어 있으며, 위성은 지상국과의 교신시간이 허락하는 최대로 영상자료를 송신한다. 본 발표에서는 다양한 영상자료의 저장 포맷과 여러 영역을 관측했을 때 각 영역에 해당하는 영상자료 구분 방법, 그리고 각 영상자료와 관제자료의 결합방법에 대해 설명한다.

• Annual Conference of KIPS
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• 2014.11a
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• pp.628-631
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• 2014

본 논문에서는 스마트폰 시대를 맞이하여 안드로이드 기반의 텔레매틱스 택시 관제 시스템의 설계와 구현에 대하여 제안한다. 제안하는 택시 관제 시스템 및 서비스는 스마트폰의 대중적 보급이라는 시대적 특성에 맞춰 여러 차량의 정보를 수집하고 이를 분석할 수 있을 뿐만 아니라 대중들에게 택시 정보를 가공, 공급하여 서비스를 제공한다. 본 서비스를 통해 택시 이용을 더욱 편리하게 할 수 있으며, 효율적인 택시 운행, 간편하고 효과적으로 택시를 관리 할 수 있다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.05a
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• pp.785-788
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• 2009

The flight data processing system is the system which processes and manages all flight related data for the aircraft control and performs the trajectory modeling. It takes charge of the role of performing the core function of the integrated information processing system for the flight control. For the safe aircraft's flight, the information transfer and exchange among air traffic control units are the essential element through the flight data processing. Therefore, for the development of the flight data processing system we are going to analyze its function and look into the necessary consideration in a design in this paper.

• Journal of Navigation and Port Research
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• v.42 no.4
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• pp.277-282
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• 2018

Recently, the Vessel Traffic Service (VTS) coverage has expanded to include coastal areas following the increased attention on vessel traffic safety. However, it has increased the workload on the VTS operators. In some cases, when the traffic volume increases sharply during the rush hour, the VTS operator may not be aware of the risks. Therefore, in this paper, we proposed a new method to recognize ship movement anomalies automatically to support the VTS operator's decision-making. The proposed method generated traffic pattern model without any category information using the unsupervised learning algorithm.. The anomaly score can be calculated by classification and comparison of the trained model. Finally, we reviewed the experimental results using a ship-handling simulator and the actual trajectory data to verify the feasibility of the proposed method.

• Journal of the Korea Society for Simulation
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• v.21 no.3
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• pp.1-9
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• 2012

This paper proposes automatic precision approach radar (PAR) control system using digital signal to increase the safety of aircraft, and discrete event systems specification (DEVS) methodology is utilized to verify the proposed system. Traditionally, a landing aircraft is controlled by the human voice of a final approach controller. However, the voice information can be missed during transmission, and pilots may also act improperly because of incorrectness of auditory signals. The proposed system enables the stable operation of the aircraft, regardless of the pilot's capability. Communicating DEVS (C-DEVS) is used to analyze and verify the behavior of the proposed system. A composed C-DEVS atomic model has overall composed discrete state sets of models, and the state sequence acquired through full state search is utilized to verify the safeness and the liveness of a system behavior. The C-DEVS model of the proposed system shows the same behavior with the traditional PAR control system.

• Review of KIISC
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• v.28 no.6
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• pp.56-62
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• 2018

미래 군사력은 첨단 무기체계가 병력 위주의 군 구조를 대체할 것임은 자명하다. 이를 증명하듯 최근 국내 방위산업은 무기체계의 고도화 첨단화로 급속하게 성장하고 있으며 해외 수출도 성공적으로 진행 중이다. 그러나 컴퓨터 해킹 등 사이버 공격에 의한 방산 정보나 방위산업기술의 유출은 방위산업의 성장을 저해시킬 뿐 아니라 국가 안보까지 심대한 영향을 미친다. 국방부는 방산업체 사이버 보안을 위해 2010년부터 보안관제를 실시하고 있으나, 지능형 지속 위협(APT) 공격과 같은 최근의 공격 양상에 대응하기 위해서는 위협 정보를 다각적으로 수집 분석하는 노력이 필수적이다. 미국을 중심으로 한 선진국은 정보공유 분석센터(ISAC) 등 정보공유체계 구축을 통해 주요 기반시설의 사이버 보안을 강화하고 있으며 국내에서도 금융, 통신 분야 등을 시작으로 최근에는 의료 분야로 점차 확대되고 있는 추세이다. 본 논문에서는 정보공유 분석센터 설립 사례와 국내 방산업체 보안관제 환경 분석을 통해 방산 정보공유 분석센터 설립 방안을 제안한다.

• JOURNAL OF ELECTRICAL WORLD
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• s.422
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• pp.58-63
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• 2012