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Kwak, Jae-Min;Lee, Seong-Real
- Journal of the Korea Institute of Information and Communication Engineering
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- v.22 no.5
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- pp.779-786
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- 2018
Ministry of oceans and Fisheries declared action plan for the electric fishing gear using real name in order to prevent overusing the fishing gear and to reduce discarded fishing gear. It is needed for a technique that can efficiently transmit the information including the type and location of the fishing gear and the user's real name to the fishing boat and the control center using IoT-based communication. In this paper, we propose the buoy-launched terminal equipment and ship-launched gateway equipment based on LoRa technology for effectively executing the electric fishing gear using real name. We design and fabricate to communicate 1(gateway):200(buoy) each other under 900 MHz ISM band by using SEMTECH SX1276 chip. Also, we experiment the test on the sea and analyze the test results to prove the implementation possibility of the proposed equipments for the electric fishing gear using real name.
https://doi.org/10.6109/jkiice.22018.22.4.779 인용 PDF KSCI

Lee, A-Reum;Kang, Il-Kwon;Jo, Hyo-Jae
- Journal of the Korean Society of Fisheries and Ocean Technology
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- v.45 no.4
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- pp.267-275
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- 2009
According to the recent statistics of marine casualties in Korea, fishing boats are more likely to be ended in the casualties, and small fishing boats especially cause much more accidents in sinking and capsizing than any other big vessels. These casualties were mainly produced from the ignorance on the lack of own ship stability. From this view, this study aims to analyze the characteristics of stability on the crab trap fishing boat receiving transverse wave by means of carrying out the water tank test. The rolling angle of the model ship was affected largely with the displacement and the wave period of it, and the trends were shown that the magnitude of the angle was proportional to the displacement, but inversely to the wave period. And the wave height had effect on the rolling angle just in the specific range of the wave period. The force of steady wind didn't have influence on the rolling variation significantly.
https://doi.org/10.3796/KSFT.2009.45.4.267 인용 PDF KSCI