• Journal of Navigation and Port Research
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• v.46 no.6
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• pp.576-584
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• 2022

AIS is widely utilized in vessel traffic services for marine traffic safety. In 2021, Korea deployed the high-speed maritime wireless communication system (LTE-Maritime) on the sea following IMO's proposal for the introduction of e-Navigation. In this paper, vessel trajectory data from AIS and LTE-Maritime were used for vessel trajectory prediction to compare and analyze the two systems. The results show that the trajectory prediction error of LTE-Maritime was smaller than that of AIS due to the granular and uniform data provided by LTE-Maritime. Additionally, it was revealed that time interval is the most important factor influencing the errors in trajectory prediction, with the prediction error of LTE-Maritime growing at a slower rate of 17% than AIS. This research contributes to the literature by quantitatively comparing AIS and LTE-Maritime systems for the first time.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.25 no.9
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• pp.755-758
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• 2012

We developed a new solar simulator to evaluate a large-scale solar cell using seven kinds of LEDs (Infrared, Red, Yellow, Green, Blue, White and Ultra Violet LED). LED solar simulator can be displaced the existing solar simulator which has several demerits such as high power consumption and short lifetime. We have tried to fabricate LED solar simulator which fulfills the spectrum for AM 1.5G condition, and to verify the feasibility of LED solar simulator.

• Journal of the Korean Society of Marine Environment & Safety
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• v.10 no.1 s.20
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• pp.15-22
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• 2004

The navigation area approach to Mokpo port consists of narrow channels with 30mile section, and the route is crossed with many fairways. In particular, fairway routeing except Mokpogu is not assigned and there are many threatening factors against the safe operation of vessel because fishing and mining areas are designated. Therefore, this paper proposed elements for safe passage through a marine traffic environmental assessment with the analysis of surrounding environment, dangerous elements, traffic survey and marine casualty.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2015.10a
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• pp.5-6
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• 2015

Maritime Cloud has been progressed by IMO as a part of the e-Navigation Strategy Implementation Plan. Development of maritime cloud enables safe and reliable information exchange among maritime stakeholders. The research conducted static analysis of open source-based maritime cloud for design and development of e-Navigation application service. As a result, configuration and role of component of MMS, one of core technologies of maritime cloud, was found out. Also, in order to grasp maritime cloud-based application, we found operation process and relationship between maritime cloud and client by analyzing EPD. The findings of the research could be utilized for developing future e-Navigation service.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• v.1
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• pp.75-80
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• 2006

ILO has contributed for seafarers to promote conditions of employment and decent work through maritime labour standards. Between 1920 and 1996, a total of 39 Conventions and 29 Recommendations concerning seafarers have been adopted, which demonstrates the import part of ILO activities devoted to seafarers' questions. But many instruments were outdated, deficient and not reflective of modern practice, many contained technical detail which discouraged ratification. the Governing Body of ILO, at its 262nd Session(March-April 1995), decided to set up a Working Party regarding the revision of maritime labour standards. This Working Party initiated its examination of maritime instruments to 273rd Session(November 1998) of the Governing Body. The review made by the Working Party has concluded that existing maritime Conventions were considered either up to date or were identified for promotion, most of which were approved by the Governing Body. Therefore, ILO started to create a single, coherent instrument embodying as far as possible all up-to-date standards of existing maritime labour convention. The Maritime Labour Convention 2006 has been adopted in February 2006. This paper aims to analyze the significance of this convention and the influence regarding to maritime labour affairs in the field of shipping industry.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2006.06b
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• pp.241-246
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• 2006

This paper describes two kinds of personal hand-held electronic devices to support marine leisure safety. The one is Radar response-type safety device triggering by the pulse signal from a commercial 9GHz-band Radar to provide quick search and rescue with combined civilian-government-military fleets. The other one is M-RFID (Marine Radio Frequency IDentification) based safety electronic device using 900MHz Tx/Rx with spread spectrum frequency hopping and GPS. Through the field tests at sea using Korea Coast Guard's warship the operating performances are verified. Further plan for practical use of each device was also discussed.

• Journal of Navigation and Port Research
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• v.40 no.5
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• pp.279-284
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• 2016

As the International Maritime English Organization (IMO) model course for Maritime English has been recently revised and updated, the requirements of current changes to both the 2010 STCW Manila Amendments and English education have been actively reviewed. In order to provide practical guidelines for language teaching, a wide range of new pedagogical approaches and their theoretical backgrounds are also suggested. However, considering the current spread of Business English as a Lingua Franca (BELF) and its critical importance in maritime communication, the pedagogical approaches need to be re-evaluated, specifically in terms of teaching pronunciation in order to emphasize clear and effective communication among international interlocutors. Therefore, the core pedagogical elements of pronunciation should be clearly set and provided with consideration for Lingua Franca Core (LFC), which places importance on mutual intelligibility rather than following the rules of native speakers. In this paper, the current trends of BELF in the maritime industry will thus be introduced. Following this, the importance of LFC in maritime communication will be outlined, and its key features will be discussed in terms of effectiveness and clarity of international maritime communications. Finally, a close comparison between LFC and the pronunciation guidelines suggested by the IMO Maritime English model course 3.17 will be conducted, and pedagogical implications for future teaching pronunciation in cross-cultural global maritime industry will be suggested.

• Proceedings of KOSOMES biannual meeting
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• 2003.05a
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• pp.135-139
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• 2003

This paper describes on the development of Passive-type Radar Reflector for Fisheries (PRR-F) based on the newly revised 2000 SOLAS regulations. The purpose of PRR-F is to provide it as the protection devices of a fishing net and a fishing field. The PRR-F is composed of corner cluster bundle of light galvanized iron, and it is inserted into floating styrofoam. Performance tests for the PRR-F are carried out in an anechoic chamber. The test results show that the reflected radar signal from PRR-F is large enough for the purpose.

• Proceedings of KOSOMES biannual meeting
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• 2003.11a
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• pp.85-92
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• 2003

Sea areas outside Mokpo-Gu are not routed to a fairway, and PTMS is not done there. And there are many dangerous elements because some fairways are crossed In this papar, we proposed a maritime traffic system which was designed with expert group's knowledge for sqfe navigation in the area and PIANC rule(1980).

• Journal of Fisheries and Marine Sciences Education
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• v.29 no.1
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• pp.31-39
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• 2017

The paper presents the Philippine maritime condition, safety systems and navigational aids. It aims to uplift the maritime safety systems and infrastructures by studying the different strata of the industry, thereby emphasizing on the structures, weaknesses and opportunities. It presents the different maritime agencies involved and each responsibilities. Data from PPA demonstrate the statistics of increase in the cargo throughput, passenger, shipcalls and cargo-container handled in the year 2014. It also highlights the insufficiency of different navigational aids, VTMS, MBS and TSS placed in the whole archipelago. It gathers data of maritime accidents in 10-year period, 2006-2015, showing the most occurred accidents, casualties and areas these accidents happened. It includes the weather phenomena which contribute to the maritime movements and accidents incidence. The results show that systems and infrastructures that focus on the lack of improvement in technology and over-lapping functions of different agencies of government require development and upgrading.