• 해양환경안전학회지
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• 제24권2호
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• pp.232-237
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• 2018

국제해양사고조사포럼(MAIIF)의 조사에 따르면 1998~2009까지 밀폐공간진입 시 발생한 101건의 사고에서 93명의 사망자와 96명의 부상자가 발생하였다. 이에 국제해사기구(IMO)는 밀폐공간진입을 위한 지침과 SOLAS 1974 협약 제3장 규칙 19를 개정하여 주기적으로 선박에서 밀폐공간진입 훈련을 시행하도록 강제화 하였다. 밀폐공간진입 훈련은 실제적이고 진입 시의 위험성을 인식할 수 있도록 실시되어야 하며, 훈련 중 훈련참가자나 교육생들의 안전도 고려되어야 한다. 최근에는 교육 및 훈련효과의 향상을 위해 가상현실(VR) 교육 컨텐츠들이 다양한 분야에서 이용되고 있으며, 이러한 방법은 장소의 제한 없이 실제적이고 반복적인 학습에 장점을 가지고 있다. 이에 본 연구에서는 VR을 이용한 밀폐공간진입 훈련이 강의형 교육훈련과 비교하여 어떤 효과와 특징 및 차별성이 있는지 훈련참가자들에 대한 정량적 평가와 설문을 통해 확인하였다. 평가 및 설문분석을 통해 VR을 이용한 밀폐공간진입 훈련 참가자들의 학습요소에 대한 숙지도가 강의형 교육훈련 참가자들보다 우수하였고, 교육방식에 대한 참가자들의 주관적 선호도도 VR을 이용한 훈련이 높게 나타났다. 연구결과 VR을 이용한 훈련의 학습효과를 확인할 수 있었으며, VR을 이용한 선상훈련은 동영상 및 시뮬레이터와 같이 효과적인 교육방식으로 이용될 수 있을 것이다.

• 한국안전학회지
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• 제36권5호
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• pp.71-78
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• 2021

There are regularly planned overhaul periods in thermal power plants, which involve the maintenance of the boiler of the power plants. However, thermal power plants workers are always exposed to risk during overhaul periods owing to the narrow space and significant dust inside the boiler. Therefore, it is essential to develop a safety monitoring system that is suitable for operating in this type of environment. In this study, we developed not only a worker three-dimensional (3D)-location monitoring system that can monitor and record the entry/exit of workers, their 3D-location, and fall accidents but also a method to secure the working environment and operation efficiency. This system comprises of a worker tag, which was equipped with an inertial measurement unit, a barometric pressure sensor, and a Bluetooth low energy (BLE), and the tags were given to each worker. In addition, the location of workers inside the boiler was measured using a pedestrian dead reckoning (PDR) method and BLE beacons. The location data of the workers tag were transmitted to the integrated database (DB) server through a gateway, and to the administrator monitoring system. The performance of the system was demonstrated inside an actual thermal power plant boiler, and the accuracy and reliability of the system were verified through a number of repeated tests. These results provide insights on designing a new system for monitoring enclosed spaces.

• 수산해양교육연구
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• 제29권2호
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• pp.333-342
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• 2017

In this study, we studied and analyzed 3,751 ships regarding detention list of Tokyo MOU from 2013 to 2015 total for 36 months. The Member Authorities of the MOU has 20 committee consists of Korea and Peru joined in 2015. 1,250 ships in a year and 140 ships in a month are granted PSC Action Code-30 corresponding to detention. Averagely, 30,943 ships in a year and 2,579 ships have been received PSC inspection. Additionally, according to this PSC inspection, rate of Detention reaches to 4.04%. When it comes to Korean Flag Ships however, the number of Detention ships of Tokyo MOU has been rather increased from 3 ships in 2013 to 18 ships during 2years. Furthermore, MOU in the all over the world, the number of ships had Detention has largely increased from 5 ships to 9 up-to 19ships. The number of Detention Ships has been reached to 44.8% of 1~2 days period of Detentions, under 3~10 days period of Detentions reaches to 34.7% and over 10 days detention reaches 10.3%, which cause economically enormous loss. Continually, each MOU has been implemented Concentrated Inspection Campaign(CIC) annually. Each MOU including Tokyo MOU implemented "Crew Familiarization for Enclosed Space Entry" for 3 month from september, and During this period, Concentrated Inspection were carried out to 8,429 ships of Tokyo MOU. Accordingly, If ships and owners can get the information of CIC and deliver the information to the ship, then Ships can minimize the rate of Detention by thoroughly preparing for PSC Inspection. In addition, Bulk Carrier and General Cargo ship occupy 50% of rate of Detention and it shows that majority of list among Nature of Deficiencies are identical. Finally, If we can obtain the information of the ships inspected previously, We can reduce the number of detention by preparing for PSC inspection. And this will be able to contribute to shipping industry also.