• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.9
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• pp.18-23
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• 2017

The shipyard quay process struggles to control workers and maintain a secure working environment because of the presence of at least 1,000 people. Therefore, safety accidents such as an explosion or a fire are likely to occur. With the recent increase in safety accidents at shipyards, the requirements for safety and process monitoring have been strengthened. Major shipyards are conducting researchto monitor the process in real time and to detect the work environment for safety. In this paper, we propose a safe and accurate evacuation route based on the information of the dangerous area and the user's location based on a mobile application to reduce the casualty accidents in the presence of many personnel in a concentrated area. To do this, we analyze the trend of the fire escape system on the ground building, compare various algorithms for escape route calculation, select appropriate algorithms for this study, and perform programming. A basic experiment was conducted to confirm the results. The proposed method is expected to be used in large ship construction sites, passenger ships and large public facilities to reduce accidents in the case of a safety accident.

• Proceedings of the Korean Society of Computer Information Conference
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• 2023.01a
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• pp.279-280
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• 2023

소방청 국정감사에서 2020년 전국 자동화재속보설비 화재신고 32,764건 가운데 32,685건이 오작동으로 출동해 소방서 출동의 99.8%가 헛걸음이었다. 그리고 화재가 발생할 경우 화재경보장치와 대피경로를 안내하는 비상등이 미흡하고, 화재 연기가 제거되지 않아 대피가 힘들어질 뿐만 아니라 미처 대피 못한 인원을 파악하는 등의 신속한 대처가 힘들다. 본 논문은 화재 상황에서 피해를 최소화하기 위한 '스마트 화재 안전 시스템' 기술을 제안한다. 화재가 발생할 경우, 대피 경로를 안내하는 유도등 작동 및 경보음과 LED의 작동으로 화재발생을 경고하여 신속한 대처를 할 수 있게 도와주고, 문과 창문의 자동 개방 및 환기팬 작동으로 인한 유해가스를 환기시켜 준다. 그리고 스프링클러 작동과 소화제를 자동 분사하여 화재의 번짐 등 2차 피해를 예방하여 준다. 또한, 자동 신고 기능으로 더욱 빠르게 화재를 진압할 수 있게 도와주기 때문에 피해를 최소화할 것이다.

• Journal of the Society of Disaster Information
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• v.8 no.2
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• pp.171-177
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• 2012

To protect the life and property of the residence from diverse disasters, we have collected and analyzed the domestic and foreign residence evacuation plans. The results and proposals from the study can be summarized as in following. First, the contents and items in civil defense emergency evacuation plan guidelines should be stipulated more clearly and its' application should be extended. Second, uniformity must be established in non-coherent contents between cities and counties. Third, disaster-prone people are not considered in the evacuation plans. The disaster-prone people must be accounted by each cities and counties and an evacuation plan for them must be established. Fourth, most of the rooms for residence evacuations are second to third level, and they are defenseless against disasters like CBRNE. Considering these conditions, deploying transportation means that can support large-scale evacuations, quickly and effectively, must also be considered.

• Journal of the Korea Society for Simulation
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• v.25 no.3
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• pp.41-51
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• 2016

In this study, we propose an improved Floor Field Model(FFM) that considers the physical characteristics of pedestrians, i.e., body size, shape, and posture. Also we analyse limits of FFM and features of improved model compared with existing evacuation simulation models. FFM is a typical microscopic pedestrian model using CA, but it does not reflect the physical characteristics of pedestrians. Because of this, FFM is difficult to modeling phenomena such as collision, friction between pedestrians. As a result, FFM calculates a very short evacuation time when compared with the other models. We performed a computational experiment to compare improved model with other models such as FFM, Simulex, Pathfinder in an actual campus building. We carried out a comparison of evacuation aspect according to the change in number of evacuees. Also we compared evacuation aspect by exit. Finally, we confirmed that improved model reflects physical phenomena which were not reflected in FFM. Especially, experimental results were very similar to the Simulex.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2010.04a
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• pp.149-154
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• 2010

건축기술의 눈부신 발전과 경제적 가치추구 등에 따른 국가 사회적 수요로 인하여 초고층 건축물의 건설물량은 이들 건축물에 대한 효과적인 피난안전대책을 정립하기도 전에 급속히 증가하는 추세이다. 우리나라는 2009년 7월 16일 재정된 건축법 시행령을 통하여 층수가 50층 이상이거나 높이가 200미터 이상인 건축물을 '초고층 건축물'로 규정하고, 이러한 건축물의 피난안전을 위하여 지상층으로부터 최대 30개 층마다 설치하는 대피공간을 '피난안전구역'으로 정의하였다. 이후 2010년 2월 18일 개정령에서는 초고층 건축물의 피난안전구역을 건축물의 '피난층'으로 인정하기에 이르렀다. 그러나 피난대상인원 등에 따른 대피공간의 면적이나 구조 등 내부시설에 대한 설치기준이 없어 피난안전구역으로서의 충분한 신뢰성을 확보하지 못하고 있어 이에 대한 심층적 연구와 기준의 개선이 필요한 실정이다.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.25 no.7
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• pp.418-426
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• 2013

With advantages of open spaces and existing HVAC facilities, subway station, if unexpected disastrous situation happens on the ground, can be used as a temporary safe place for evacuees. The main objective of this study is to establish a guideline on estimating evacuation capacity of the subway station and evaluating levels of service of evacuation for officials to control the situation. This guideline includes available spaces of the station, capacity of sanitary fixtures, and total number of passengers, etc. In this paper, we first analyzed the number of passengers of SMRT (Line 5~Line 8) during AM peak hour and then evaluated the number of passengers using toilets at that time. In addition, we calculated the seating capacity of subway stations on SMRT using the difference between the actual number of toilets and the estimated number of ones from the occupancy time of each toilet.

• Proceedings of KOSOMES biannual meeting
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• 2006.11a
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• pp.283-289
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• 2006

This study is a preparation for the application of FSA (Formal Safety Assessment) to the fire safety of ships. FSA is the new-fashioned methodology proposed to prevent ships from the accidents. To make a base of the fire safety assessment about ship's fire protection design and Classification Society rule, statistical informations for the fire safety engineering are investigated. From results, the necessity of new criterion for ship's fire safety design, the need to study the human behavior in the evacuation from fire, and the development of new fire progress model considering special situations in ships are acknowledged.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.10a
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• pp.452-454
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• 2016

화재와 지진 등 재난 발생 시 인원이 많이 밀집되어 있는 건물 내에서는 혼란스러운 상황이 발생하는 것이 일반적이고 각 건물 내 사람들이 통솔하기도 어렵다. 이러한 문제를 해소하기 위해 본 논문에서는 상황에 따른 장치 간 전송하는 데이터를 나누어 데이터 전송에 효율성을 높이며 데이터베이스를 제안하여 데이터 간 관련성과 관리에 효율성을 높이고 사용자에게 직접 건물 내 상황을 알리고 안정적으로 대피를 할 수 있도록 도움을 주는 기술과 그에 필요한 Protocol을 제안한다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.39 no.6
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• pp.955-963
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• 2019

Currently, the establishment and management of civil defense shelters are under the initiative of the government and local governments to protect the lives of citizens. In the future, there is a need for efficient civil defense shelters operation through the expansion of general shelters, including designated dedicated shelters. Therefore, it is more efficient to consider the distribution of residents and the location of access to shelters, not the quantitative operation considering only the number of residents. This study uses genetic algorithms and Huff gravity model based on census output data, building data, and road network information to understand the distribution of inhabitants more precisely than existing administrative district data. In addition, the spatial- database was used for efficient data management and fast processing, and if this study is improved, it can be used as a basis for the selection and improvement of general shelters positioning for a wider area.

• Fire Science and Engineering
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• v.33 no.3
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• pp.84-90
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• 2019

In this study, a fire and evacuation inside an electronic equipment room in environmental energy facilities were conducted and evaluated using a numerical analysis method. In the fire simulation, the visual distance, temperature distribution, and CO concentration distribution were analyzed using FDS. Based on the results, the Pathfinder program, which is an evacuation simulation, was used to calculate the evacuation time of the occupants and derive an evacuation safety evaluation. As a result, the Available safe Egress time (ASET) of P-01 and P-05 was 203.3 and 398.6 s, respectively. For the Required safety Egress time (RSET) results, all evacuees were evacuated at all points and the safety of the evacuee was secured this simulation showed that the safety evaluation is based on the non - operation of the fire - fighting equipment to improve the safety, making it possible to secure better evacuation safety performance owing to the fire of other fire - fighting facilities.