• Title/Summary/Keyword: 해양 수색구조

Search Result 68, Processing Time 0.031 seconds

An Energy Optimization Algorithm for Maritime Search and Rescue in Wireless Sensor Networks (무선 센서 네트워크에서 해양 수색 및 구조를 위한 에너지 최적화 알고리즘)

  • Jang, Kil-woong
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.22 no.4
    • /
    • pp.676-682
    • /
    • 2018
  • In wireless sensor networks, we propose an optimization algorithm in order to minimize the consumed energy of nodes for maritime search and rescue. In the marine environment, search and rescue operations are mainly performed on the surveillance side and passively on the rescued side. A self-configurable wireless sensor network can build a system that can send rescue signals in the operations. A simulated annealing algorithm is proposed to minimize the consumed energy of nodes in the networks with many nodes. As the density of nodes becomes higher, the algorithmic computation will increase highly. To search the good result in a proper execution time, the proposed algorithm proposes a new neighborhood generating operation and improves the efficiency of the algorithm. The proposed algorithm was evaluated in terms of the consumed energy of the nodes and algorithm execution time, and the proposed algorithm performed better than other optimization algorithms in the performance results.

자동침몰선박 위치표시 등명기 개발 연구

  • Gang, Chil-Se;Go, Jong-Tae;Kim, Ji-Yeong;Kim, Min-Cheol
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
    • /
    • 2017.11a
    • /
    • pp.173-176
    • /
    • 2017
  • 최근 발생한 대형 해양사고 발생 시 선박이 침몰하면 선체를 찾는데 AKSG은 시간을 허비하여 임영의 구조에 필요한 골든타임을 놓치거나 선체 파공 부위의 봉쇄 조치의 지연 등으로 유류 노출에 의한 자연환경 파괴 등이 우려되고 있어, 현재의 해양사고 발생 시 긴급수색 및 구조시스템 외에 침몰선박의 위치를 알 수 있는 방법의 모색이 필용한 시점이다. 이 연구에서는 선박이 침몰하면 선박에 설치된 등 부표가 자동적으로 부양되면서 등부표에 설치된 등명기에서 형상과 빛 및 전파로서 사고 발생 위치를 알려주는 기술을 연구 개발하였다.

  • PDF

A Study on Strengthening of Maritime Search and Rescue by Improving the Mobile-phone Boarding Reporting System (모바일 승선신고시스템 개선을 통한 해양수색구조 강화방안 연구)

  • Hae-Sang Jeong;Jong-Hwui Yun;Seong-Chan Lee;Choong-Ki Kim
    • Journal of the Korean Society of Marine Environment & Safety
    • /
    • v.29 no.4
    • /
    • pp.316-324
    • /
    • 2023
  • During maritime distress, Korean Coast Guard investigates the current status of the distress, such as identifying search objects, to establish a search plan. The ship master is required to submit a report to the competent authority before departure, along with an identity list of the crew and passengers. As a list of the passengers on board is made manually, the waiting time becomes longer, and it is difficult to immediately identify these during maritime distress. The Ministry of Oceans and Fisheries has developed an app to make it easier to register for boarding, but it has been inactive for various reasons. Therefore, this study proposed a plan to improve it. By activating the mobile-phone boarding report system, it is possible to quickly secure the initial location and time of the person in water and provide mental relief to them by acknowledging the receipt of a distress report. In addition, using this information, it is possible to quickly rescue the affected person through public-private partnership.

Tracking Model of Drifted Ships for Search and Rescue (해상 수색구조를 위한 표류지점 신속추정모델 연구)

  • Lee Moonjin;Gong In-Young;Kang Chang-Gu
    • Journal of the Korean Society for Marine Environment & Energy
    • /
    • v.2 no.2
    • /
    • pp.78-85
    • /
    • 1999
  • Tracking model of a drifted ship lot the search and rescue mission in southern sea of Korea is studied. In this model, search area is determined by considering standard deviation of position around reference point. The reference point is estimated for a given type of ship when marine environmental conditions such as wind and current are given. A database for environmental data, which is necessary for the real-lime tracking of drilled ship, is gel)elated on southern sea and western sea of Korea. Using this database, the real-time prediction of wind and current is possible. The simulated trajectories and search area of our model ate validated by comparing with reported real data.

  • PDF

Allocation Order of SRU using Analytic Network Process (ANP법을 이용한 수색구조선의 우선 배치순위)

  • Jang, Woon-Jae;Cho, Jun-Young;Keum, Jong-Soo
    • Proceedings of KOSOMES biannual meeting
    • /
    • 2006.11a
    • /
    • pp.245-251
    • /
    • 2006
  • This is paper aims to evaluate allocation order of SRU using Analytic Network Process. For evaluation, in this paper, assess about person, ship and environment related risk by fuzzy logic and AHP(Analytic hierarchy Process). Also, quantity and quality operation efficiency assess by DEA (Data Envelopment Analysis) and Liquate scale. finally total weight calculate by ANP. At the result, Rescue Units of MP, YS RCC/RSC is order higher. Thus, it needs to have more rescue ships and rescue devices for relieving the risk in the future.

  • PDF

Evaluation of Order for Allocation of Rescue Unit using Analytic Network Process (ANP법을 이용한 수색.구조선의 할당순위 평가)

  • Jang, Woon-Jae;Keum, Jong-Soo
    • Journal of the Korean Society of Marine Environment & Safety
    • /
    • v.13 no.2 s.29
    • /
    • pp.155-160
    • /
    • 2007
  • This paper aims to evaluation of order for allocation of rescue unit using Analytic Network Process. For evaluation, in this paper, assess about person, ship and environment related risk by fuzzy logic and AHP(Analytic hierarchy Process). Also, quantity and quality operation efficiency assess by DEA(Data Envelopment Analysis) and Liquate scale. finally total weight calculate by ANP. At the result, Rescue Units of MP, YS RCC/RSC is order higher. Thus, it needs to have more rescue ships and rescue devices for relieving the risk in the future.

  • PDF

Evaluation of Risk Level for Damage of Marine Accidents using Fuzzy AHP (퍼지AHP법을 이용한 해양사고 피해규모에 의한 위험수준 평가)

  • Jang Woon-Jae;Keum Jong-Soo
    • Proceedings of KOSOMES biannual meeting
    • /
    • 2004.11a
    • /
    • pp.83-88
    • /
    • 2004
  • This paper suggests on evaluation of risk level for damage of marine accidents in SRRs. This paper intoduces a concept of fuzzy logic with the plenty of related literature riview, fuzzy measure t-seminormed fuzzy integral and in the Korean. SRRs of RCC and RSC. The methodology of this paper is max$\cdot$min composition of fuzzy extensive principle, defuzzifiation is centroid of gravity methods. And final evaluation value using t-seminormed fuzzy integral. At the result, the evaluation of risk level is especially over Serious for marine accident of Mokpo, Tongyoung, Busan SRRs. This paper recommends tint many Rescue Vessels and Equipments need to the reduction of risk level about those.

  • PDF