• 한국안전학회지
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• 제28권3호
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• pp.118-122
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• 2013

For safe evacuation in the fire disaster, the evacuees must find the exit and evacuate quickly. Especially, if the evacuees don't know the location of the exit, they have to depend on the evacuation guidance system. Because the more smoke spread, the less visibility is decreasing, it is difficult to find the way to the exit by the naked eye. For theses reasons, the evacuation guidance system is highly important. However, the evacuation guidance system without change of direction has the risk that introduce to the dangerous area. In the evacuation safety assessment scenario by the evacuation simulation has the same problem. Because the evacuee in the simulation evacuate by the shortest route to the exit, the simulation result is same like the evacuation without the evacuation guidance system. In this study, it was used with MAS (Multi Agent System)-based simulation program including the evacuation guidance system to implement the change of evacuation by fire. Using this method, confidence of evacuation safety assessment can be increase.

• 한국방재안전학회논문집
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• 제8권1호
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• pp.1-4
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• 2015

지하철과 같은 지하공간에서 재난이 발생할 경우, 신속하게 안전한 대피 경로로 승객을 유도하여 인명피해를 최소화 하여야 한다. 이를 위해서 빠르게 재난을 감지하고 중앙관리센터에서 신속한 대응이 이루어지지 않는 경우에 자율적으로 의사결정을 할 수 있는 분산형 방재 시스템이 필요하다. 본 연구에서는 재난 발생 시 신속한 승객 대피를 위한 피난 동선을 생성하고 최적 피난 경로를 제공하기 위한 피난 경로 분석 및 유도 알고리즘을 제시하였다.

• 대한임베디드공학회논문지
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• 제10권5호
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• pp.281-296
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• 2015

This paper describes a novel disaster evacuation system using embedded systems such as smart devices for crisis and emergency management. In indoor environments deployed with the Bluetooth Low Energy(BLE) beacons, smart devices detect their indoor positions from beacon messages and interact with Map Server(MS) and Route Server(RS) in the Internet over the LTE and/or Wi-Fi functions. The MS and RS generate an optimal path to the nearest emergency exit based on a novel graph generation method for less route computation, called the Disaster Evacuation Graph(DEG), for each smart device. The DEG also enables efficient processing of some constraints in the computation of route, such as load balancing in situation of different capacities of paths or exits. All data interfaces among three system components, the MS, RS, smart devices, have been defined for modular implementation of our disaster evacuation system. Our experimental system has been deployed and tested in our building thoroughly and gives a good evidence that the modular design of the system and a novel approach to compute emergency route based on the DEG is competitive and viable.

• 한국재난정보학회 논문집
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• 제16권3호
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• pp.594-601
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• 2020

연구목적: 본 연구는 경기도 지역의 재난피해가능성불안 및 지각된 스트레스가 대피행동에 영향을 미치는 요인을 파악하는데 있다. 연구방법:가설검증을 위하여 다중회귀분석(Multiple Regression analysis), 연령, 지역별 재난피해가능성불안 간의 대응일치 유사성을 분석하였다. 연구결과: 안전취약계층피해 가능성불안과 재난시스템 붕괴피해가능성불안이 밀접한 위치에서 지각되는 것을 확인하였다. 지각된 스트레스에 재난시스템붕괴, 피난생활, 자연재해 등이 영향요인으로 확인되었다. 다음으로 대피행동에 스트레스와 자연재해가 영향을 미치는 요인으로 확인되었다. 결론: 자연재해피해가능성불안과 스트레스가 대피행동에 영향을 미치므로 스트레스 관리의 필요성을 확인하였다. 최근 들어 강우량을 통한 재해에서 경험하였듯이 재해의 피해가능성불안은 높아질 것으로 예측된다. 이를 관리하기 위해서는 예방차원의 계획과 심리적 관리가 중요함을 시사하였다.

• 한국재난정보학회 논문집
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• 제12권3호
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• pp.228-234
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• 2016

최근 우리나라의 건물은 구조와 형태가 대형화, 초고층화 되어가고 있어 재난에 대한 위험성이 증가하고 있다. 재난 발생 시 불특정다수에 대해 신속하고 정확한 피난유도가 이루어지지 않는다면 그 피해는 막대할 것이다. 이러한 문제를 해결하고자 본 논문에서는 지향성 스피커에 대한 선행연구를 기반으로 피난유도 시스템을 제안하고자 한다. 재난 상황은 화재의 경우로 한정하여 연구하였으며, 이 시스템은 화재 발생 시 피난자들에게 재난 발생상황 및 피난에 유용한 정보들을 효과적으로 제공하여 정확하고 신속한 피난유도를 가능하도록 한다.

• 한국화재소방학회논문지
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• 제30권1호
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• pp.81-85
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• 2016

Reasonable disaster prevention signs play an important role in guiding evacuation. Through the field investigation on disaster prevention signs in shelters and surrounding areas in Beijing, some problems were found in the using of sign system. Based on the principle of integrated design, evacuation and rescue requirements, it is necesssary to make further study on aspects such as, design of function, systematic consideration, humanization design, as well as the internationalization using. This paper presents an evaluation index system for disaster prevention signs. Such a system is very important for strengthening the independent guiding function of sign systems and improving evacuation efficiency. An effective connection could be realized between the internal environment of buildings, evacuation routes, and emergencey shelters.

• 대한안전경영과학회지
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• 제14권3호
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• pp.159-166
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• 2012

A*algorithm is highly useful to search the shortest route to the destination in the evacuation simulation. For this reason, A*algorithm is used to evaluate the evacuation experiment by the computer simulation. However there are some problems to analyze the outcome in relation to the reality. Because all the people in the building are not well-informed of the shortest route to the exit. And they will not move to the disaster spot though it is shortest route to the exit. Therefore, evacuation simulation program based on A*algorithm raise a problem of bottleneck phenomenon and dangerous result by damage surrounding the disaster spot. The purpose of this research is to prove the necessity for dispersion evacuation simulation by Multi agent system to solve the problems of the existing evacuation simulation program based on A*algorithm.

• 한국안전학회지
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• 제29권1호
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• pp.59-63
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• 2014

Smoke is one of the most critical factor when escaping from the fire since it reduces visibility and interrupts finding emergency exit lights. Therefore, it is recommended that an evacuation simulation program should incorporate the smoke factor. In addition, it is suggested that the program should include not only the unilateral damage by the smoke but also the detour evacuation by risk communication. In this study, MAS (Multi Agent System)-based simulation program which incorporates the reduced walking speed by smoke and adopts the dispersion evacuation logic during escaping from the fire. To make comparison, a commercial evacuation program, Pathfinder was used. It was found that the simulation results of MAS (Multi Agent System)-based program is better than Pathfinder in terms of safe evacuation. It means that evacuation simulation need a additional evaluation categories that include not only quick evacuation time but also safe evacuee number.

• 한국안전학회지
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• 제32권1호
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• pp.121-127
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• 2017

Recently, many patients in a hospital are threatened life by fire disaster. Because many patients like vulnerable people have more evacuation problem than ordinary person. So a patient who can escape by oneself with walking assistance device like crutches or wheelchair and another patient who can't escape by oneself are should be supported safety technologies and service. Earlier research of 'hospital evacuation' led by actual experiments or computer evacuation simulation. Actual experiment is effective to gain credibility of result but it is difficult for patients to experiment repeatedly and it requires consideration for spatial problem and economic problems. Although computer evacuation simulation have been used to solve these problems, almost have concluded only results based on velocity without evacuation device. In this study, evacuation results with support device application or not are analysed used by computer evacuation simulation based on MAS(Multi Agent System). As a result, it is drawn through proof of efficiency of evacuation device in the vertical space like stairs that can improve the evacuation plan for vulnerable people in the hospital.

• 한국콘텐츠학회논문지
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• 제16권9호
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• pp.12-21
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• 2016

본 논문에서는 긴급 재해 발생 시 피난 지원을 목적으로 하는 긴급피난지원시스템을 구축하기 위하여 실내에서 화재, 테러 등의 재해 발생 시 탈출 경로 탐색 알고리즘을 구현하였다. 긴급 상황이 발생하면 알고리즘은 가장 빨리 탈출할 수 있는 비상구로 탈출 경로를 안내해 준다. 알고리즘은 비상구나 비상구 이외의 지역의 인구 밀도와 연령별 가중치를 적용하여 탈출 경로를 계산한다. 본 시스템은 혼잡한 비상구를 우회하게 함으로써 비상구의 과중한 혼잡과 탈출 경로 상의 혼잡을 감소시키면서 재해 발생 지역을 우회하여 탈출하도록 돕는다.