• Title/Summary/Keyword: AIS data

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Construction of experimental data to calculate the arrival time of the rescue ship (구조선의 도착시간 산출을 위한 실험 데이터 구축)

  • Jeong, Jae-Yong;Jung, Cho-Young
    • Journal of Advanced Marine Engineering and Technology
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    • v.41 no.1
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    • pp.111-117
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    • 2017
  • The arrival time of rescue ships is very important in the event of distress. This paper presents the development of experimental data to calculate the arrival time of rescue ships. The ship's traffic probability distribution was used. Mokpo Port was selected as the area of study, and AIS data for a 1 year period were used. For the ship's traffic probability distribution, a gateline was established. The lateral range distribution was calculated and fitted to the normal distribution and two Gaussian mixture distributions (GMD2), and each parameter was extracted. After the locations of ${\mu}$, ${\mu}{\pm}1{\sigma}$ of the normal distribution and ${\mu}_1$ of the two Gaussian mixture distribution(GMD2) were set as waypoints, the location and probability were determined. A scenario was established in relation to each type of parameter. Thus, the arrival time can be calculated.

A Study on Evaluation of Marine Traffic Congestion based on Survey Research in Major Port (주요항만의 실측조사 기반 해상교통혼잡도 평가 연구)

  • Yoo, Sang-Rok;Jeong, Cho-Young;Kim, Chol-Seong;Park, Sung-Hyun;Jeong, Jae-Yong
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.19 no.5
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    • pp.483-490
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    • 2013
  • In this study, we analyzed AIS measured data for ten days by selecting the four main ports with many ships arriving in the national ports. The peak time congestion of the main ports, calculated by survey research, was about 3.8-5.7 times higher than the hourly average congestion. This is very different from the results of the advanced research, evaluating the marine traffic congestion of the Ulsan main port based on the existing Port-MIS statistical data, which showed a peak time congestion of about 1.7 times higher than the hourly average. This identifies the problem of distorting the traffic characteristics of the current passage. Therefore, in order to evaluate marine traffic congestion, it would be more appropriate to calculate it based on survey research, rather than Port-MIS statistical data.

Design and Implementation of Bigdata Platform for Vessel Traffic Service (해상교통 관제 빅데이터 체계의 설계 및 구현)

  • Hye-Jin Kim;Jaeyong Oh
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.29 no.7
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    • pp.887-892
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    • 2023
  • Vessel traffic service(VTS) centers are equipped with RADAR, AIS(Automatic Identification System), weather sensors, and VHF(Very High Frequency). VTS operators use this equipment to observe the movement of ships operating in the VTS area and provide information. The VTS data generated by these various devices is highly valuable for analyzing maritime traffic situation. However, owing to a lack of compatibility between system manufacturers or policy issues, they are often not systematically managed. Therefore, we developed the VTS Bigdata Platform that could efficiently collect, store, and manage control data collected by the VTS, and this paper describes its design and implementation. A microservice architecture was applied to secure operational stability that was one of the important issues in the development of the platform. In addition, the performance of the platform could be improved by dualizing the storage for real-time navigation information. The implemented system was tested using real maritime data to check its performance, identify additional improvements, and consider its feasibility in a real VTS environment.

A Study on the Evaluation for the Safety of Passing Vessel in the Vicinity of the Seasands Gathering Area By Marine Traffic Safety Diagnostic Scheme (해상교통안전진단제도에 따른 바다모래채취 주변수역에서의 통항선박 안전성 평가에 관한 연구)

  • Kim, Se-Won;Park, Young-Soo;Lee, Yoon-Suk
    • Journal of Fisheries and Marine Sciences Education
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    • v.25 no.3
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    • pp.677-689
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    • 2013
  • Recently, the supplying of basic materials for construction of building as sand is big issues due to lack of shoreside supply. For solving this problem, many suppliers attempt to gather aggregate from the sea bottom of the EEZ & west coastal area of Korea. In this regard, the 'Jangantoe' which exists in the westside of the Daesan port is worth noticing as good seasand supplying areas. The Chungnam Aggregate Association have plan to gather of seasand from 'Gaduckdo 5 regions & Igok 3 regions' which lies westside about 6 miles off from the Jangantoe areas. This designated area also locates upper parts of the Gadaeam TSS(Traffic Separation Scheme) which is very useful passing routes for the sailing vessels of Inchon & Daesan ports. In this study, the evaluation of the safety for passing vessels in the vicinity of the seasand gathering area was performed by various methods of radar observations & GICOMS AIS data for marine traffics and vessel traffic-flow simulation of the 'Marine Traffic Safety Diagnostic Scheme'. By the results of this evaluation, I suggested comprehensive countermeasures for the safety of passing vessels in the near the seasand gathering area.

Suggestion of Structural Analysis Model Using Auxiliary Rehabilitation Device for a Patient of Spinal Curvature (척추측만증 환자의 재활 치료 보조기 개발을 위한 구조 해석 모델 제시)

  • Bak, Jeong-Il;Yoon, Ho-Cheul;Kou, Heung;Yum, Deuk-Joon;Sun, Dong-Youn;Kim, Young-Chul
    • Proceedings of the IEEK Conference
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    • 2009.05a
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    • pp.141-144
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    • 2009
  • The purpose of this study is to develop the auxiliary rehabilitation device for a patient of spinal curvature. The adolescent diopathic scoliosis(AIS) must be treated by rehabilitation brace if Cobb angle is $20^{\circ}{\sim}40^{\circ}$. The rehabilitation brace is consist of 4 vest and 2 hinge parts(hinge and couple bar) that give a force to the ribs. But thin and light hinge parts for young patient failed easily because of unusual movement of the upper body. We studied optimum design and structural analysis of hinge parts when it distorted by tensile and bending force. The specimen of hinge parts were tested to evaluate the failure strength. And we attached circuits with memory and sensor detecting pressure and displacement to recoding stress in hinge parts. These data are used to alarm the patient to stop unusual movement and understand the load history.

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A Study on Deployment of Data Network in Marine VHF Bandwidth (VHF대역에서 디지틀 해상통신망 구축에 관한 연구)

  • Jang, Dong-Won;Lee, Young-Hwan
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2007.10a
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    • pp.159-162
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    • 2007
  • 최근 통신 기술의 발달로 육상이동통신 기술을 해상 및 항공에 확대하려는 시도가 꾸준히 진행되고 있다. 해상 및 항공 통신은 인명 안전을 위한 통신으로 국제 기구에 의해서 최우선적인 보호를 받아 왔다. 그러나 통신 기술의 급속한 발전으로 해상 및 항공 통신망은 기존 음성 위주의 통신망에서 멀티미디어를 처리할 수 있는 디지틀망으로의 전환이 시급히 필요하게 되었다. 해상통신의 경우에는 디지틀 통신 방식을 이용하는 DSC(Digital Selective Calling), AIS(Automatic Identification System) 등을 이미 도입해서 운용 중에 있으며 다른 시스템으로의 확대가 진행 중에 있다. SOLAS 선박뿐 만 아니라 비 SOLAS(Safety Of Life At Sea) 선박들도 디지틀 통신을 활용하면 항행 안전에 매우 도움이 될 것이다. 최근에 ITU-R에서는 VHF(Very High Frequency) 대역에서 데이터 및 이메일 등을 송수신하기 위한 데이터 통신시스템 기술에 대한 논의가 진행 중에 있다. 본고에서는 이 VHF대역 데이터시스템에 대한 기술적 특성을 분석하고 향후 해상통신에서의 디지틀 기술이 도입된 후 전개될 해상통신망에 대해서 기술하였다.

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S-100 Drawing Instruction Analysis for S-101 ENC Development (S-101 전자해도 구현을 위한 S-100 Drawing Instruction 분석)

  • Kim, Youngjin;Park, Suhyun;Park, Daewon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2015.10a
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    • pp.259-261
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    • 2015
  • In order to provide a safe and secure electronic navigational chart information services, AIS information, information on aids to navigation, maritime safety information, weather information, information on a variety of birds such as the data fused S-100 standards-based e-Navigation system should be established. S-101 ENC implement Rendering Engine analyzes the Drawing Instruction set generated by Portrayal Engine of the S-100 General Portrayal Model for is a job to be followed to establish the e-Navigation System to implement the S-101 ENC Should be. In this paper, we analyze the Drawing Instruction of the existing S-57 ENC and S-101 ENC is the basis for the implementation of the S-101 ENC.

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Enabling Vessel Collision-Avoidance Expert Systems to Negotiate

  • Hu, Qinyou;Shi, Chaojian;Chen, Haishan;Hu, Qiaoer
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • v.1
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    • pp.77-82
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    • 2006
  • Automatic vessel collision-avoidance systems have been studied in the fields of artificial intelligence and navigation for decades. And to facilitate automatic collision-avoidance decision-making in two-vessel-encounter situation, several expert and fuzzy expert systems have been developed. However, none of them can negotiate with each other as seafarers usually do when they intend to make a more economic overall plan of collision avoidance in the COLREGS-COST-HIGH situations where collision avoidance following the International Regulations for Preventing Collisions at Sea(COLREGS) costs too much. Automatic Identification System(AIS) makes data communication between two vessels possible, and negotiation methods can be used to optimize vessel collision avoidance. In this paper, a negotiation framework is put forward to enable vessels to negotiate to optimize collision avoidance in the COLREGS-COST-HIGH situations at open sea. A vessel vector space is defined and therewith a cost model is put forward to evaluate the cost of collision-avoidance actions. Negotiations between a give-way vessel and a stand-on vessel and between two give-way vessels are considered respectively to reach overall low cost agreements. With the framework proposed in this paper, two vessels involved in a COLREGS-COST-HIGH situation can negotiate with each other to get a more economic overall plan of collision avoidance than that suggested by the traditional collision-avoidance expert systems.

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A Study on Air Interface System (AIS) Using Infrared Ray (IR) Camera (적외선 카메라를 이용한 에어 인터페이스 시스템(AIS) 연구)

  • Kim, Hyo-Sung;Jung, Hyun-Ki;Kim, Byung-Gyu
    • The KIPS Transactions:PartB
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    • v.18B no.3
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    • pp.109-116
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    • 2011
  • In this paper, we introduce non-touch style interface system technology without any touch style controlling mechanism, which is called as "Air-interface". To develop this system, we used the full reflection principle of infrared (IR) light and then user's hand is separated from the background with the obtained image at every frame. The segmented hand region at every frame is used as input data for an hand-motion recognition module, and the hand-motion recognition module performs a suitable control event that has been mapped into the specified hand-motion through verifying the hand-motion. In this paper, we introduce some developed and suggested methods for image processing and hand-motion recognition. The developed air-touch technology will be very useful for advertizement panel, entertainment presentation system, kiosk system and so many applications.

A Study on the Ship Information Fusion with AIS and ARPA Radar using by Blackboard System (블랙보드 시스템을 이용한 AIS와 ARPA Radar의 선박 정보 융합에 대한 연구)

  • Kim, Do-Yeon;Park, Gyei-Kark;Kim, Hwa-Young
    • Journal of the Korean Institute of Intelligent Systems
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    • v.24 no.1
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    • pp.16-21
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    • 2014
  • In recent, the maritime traffic has increased with an increase in international trading volumes and the growing popularity of marine leisure activities. As increasing of maritime traffic, marine accidents happened continually and there are possibilities of accidents at sea. According to the analysis of marine accidents, most accidents occurred by human error of seafarers. To reduce the accidents by human error, the various assistance system for assist seafarers have been proposed. It is required to real-time data management method for applying to real-time system, but most proposed assistance system used off-line data for analysis. In this paper, we aim to build a navigation supporting system for providing safety information to deck officer with data of AIS(Automatic Identification System) and ARPA Radar(Automatic Radar Plotting Aids Radar), and proposed a management algorithm for real-time ship information with blackboard system and verified the validity.