• 제목/요약/키워드: Fire Data Analysis

검색결과 779건 처리시간 0.03초

열화상 카메라를 이용한 전통시장 화재 감지에서 YOLOv8 객체 탐지 모델의 성능 비교 분석 (Comparative Analysis of YOLOv8 Object Detection Model Performance in Fire Detection in Traditional Markets Using Thermal Cameras)

  • 고아라;조정원
    • 디지털산업정보학회논문지
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    • 제19권4호
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    • pp.117-126
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    • 2023
  • Traditional markets, formed naturally, often feature aged buildings and facilities that are susceptible to fire. However, the lack of adequate fire detection systems in these markets can easily lead to large-scale fires upon ignition. Therefore, this study was conducted with the aim of detecting fires in traditional markets, utilizing thermal imaging cameras for data collection and the YOLOv8 model for object detection experiments. Data were collected in the night markets within traditional markets of xx city and by simulating fire scenarios. A comparative analysis of the Nano and XL models of YOLOv8 revealed that the XL model is more effective in detecting fires. The XL model not only demonstrated higher accuracy in correctly identifying flames but also tended to miss fewer fires compared to the Nano model. In the case of objects other than flames, the XL model showed superior performance over the Nano model. Taking all these factors into account, it is anticipated that with further data collection and improvement in model performance, a suitable fire detection system for traditional markets can be developed.

Application and evaluation of machine-learning model for fire accelerant classification from GC-MS data of fire residue

  • Park, Chihyun;Park, Wooyong;Jeon, Sookyung;Lee, Sumin;Lee, Joon-Bae
    • 분석과학
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    • 제34권5호
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    • pp.231-239
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    • 2021
  • Detection of fire accelerants from fire residues is critical to determine whether the case was arson or accidental fire. However, to develop a standardized model for determining the presence or absence of fire accelerants was not easy because of high temperature which cause disappearance or combustion of components of fire accelerants. In this study, logistic regression, random forest, and support vector machine models were trained and evaluated from a total of 728 GC-MS analysis data obtained from actual fire residues. Mean classification accuracies of the three models were 63 %, 81 %, and 84 %, respectively, and in particular, mean AU-PR values of the three models were evaluated as 0.68, 0.86, and 0.86, respectively, showing fine performances of random forest and support vector machine models.

옥내소화전의 사용실태 및 현황에 관한 연구 (A Survey Study on the Usage and Situation of Indoor Fire Hydrants)

  • 이원주;이창섭
    • 한국화재소방학회논문지
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    • 제30권2호
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    • pp.141-146
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    • 2016
  • 본 논문은 소방안전교육의 효과적인 설계, 진행, 그리고 개선을 위한 기초자료(옥내소화전의 설치현황 인지, 교육경험, 그리고 사용방법의 이해)를 조사하기 위한 목적으로 수행되었다. 이를 위해 전국의 성인남녀 198명을 대상으로 온라인 설문을 실시하였고, 조사된 자료는 SPSS 20.0 win 프로그램을 활용하여 통계처리하였다. 설문 분석결과, 연구대상자의 87.9%는 옥내소화전이 설치되어 있는 환경에서 생활하고 있지만, 그 중 17.7%는 옥내소화전이 어디에 설치되어 있는지 알지 못하는 것으로 나타났다. 한편, 연구대상자의 63.6%가 소방안전교육을 받아본 것으로 나타났고, 그 중 31%는 옥내 소화전에 대한 내용이 포함되지 않은 교육을 받은 것으로 나타났다. 옥내소화전의 교육 형태는 50%가 강의중심인 것으로 나타났으며, 옥내소화전의 사용방법의 이해는 평균 3.15/5.00로 나타났다. 이 연구 결과는 전국의 성인남녀를 대상으로 하는 소방안전교육의 학습자 진단 자료로 활용할 수 있을 것으로 기대한다.

실내건축관련 소방(消防)규정과 방염(防炎)에 관한 연구 (A Study on Data Research for Fire Regulations and Fire Retardant in Interior Architecture)

  • 조성오;김용성
    • 한국실내디자인학회논문집
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    • 제19권3호
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    • pp.95-102
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    • 2010
  • Recently, a grow in size and features of Interior construction work over the complex and The Fire-related regulations have been strengthened for the prevention of fire damage. This study is purpose to propose interior design, construction and supervision for the efficient and reasonable way throughout the fire-related laws are investigated in interior architecture. First, the interior of the building work will be based on actual use Fire-related Laws and Regulations have be investigated. Second, based on analysis of material and facilities by Application can be used in production by the data were applied to the present. Third, the international Fire and Flame Retardant Standards for investigating and reviewing the relevant laws, differences and characteristics of each country were analyzed. Fourth, the various fire-related issues of regulation and the application of relevant provisions in the field works, the law's standards, and improvements were identified by analysis. Fire-Related Laws and Building codes that Safety Administration of the Fire Services are divided into design, it comes to approval from the municipal authorities with concerns about the fire that will fit on the Fire Department's administrative procedures and operations is necessary to integrate operations. In conclusion, Fire-related business are divided into Minister of Land, Transport and Maritime Affairs and Ministry of Public Administration and Security. So, Both institutions is need to be the cooperative work. It is necessary to the field supervision. Because, Flame-resistant performance standards in the field works applied are too complex. Last, Establishment of fire-related regulations will enact by private organizations and the experts to participate.

화목 연료 난방설비의 화재 위험 감소 방안에 관한 이론적 연구 (Study on the effective response method to reduce fire risk of wood fuel heating system)

  • 박경진;이봉우;이근출;남기훈
    • 한국산업융합학회 논문집
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    • 제22권2호
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    • pp.163-171
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    • 2019
  • Recently, rural housing in urban areas has been increasing due to the improvement of income level. With the increase of the construction of the power house, the installation of the heating system using the harmonious fuel for the purpose of heating and the beauty of the room is increasing rapidly. In addition to the increasing use of firewood heating equipment, the incidence of fire is also increasing. Analysis of the National Fire Data System of the Fire Department The result of the analysis of the National Fire Data System Many parts of the fire are incinerated by the accumulation of tar due to the incompleteness of periodic cleaning inside the cylinder. The distance between the fire extinguisher and the combustible materials such as ceiling, Resulting in fire. In addition, it was found that much of the fire of the firewood heating system in the time zone occurs during the sleeping and resting time and there is not enough time for the residents to cope. This, in turn, causes serious harm to the lives and property of the users of the pyrotechnic heating system. Therefore, in this study, domestic and foreign standards and laws related to fuel oil heating facilities were analyzed and 12 cases of fire accidents were analyzed. Through the revision of the fire prevention and firefighting facilities installation and maintenance law, the installation standards of the alarm and fire extinguishing facilities were presented.

도로 인프라를 고려한 전기자동차 충돌안전 시험법 개발 (Development of Electric Vehicle Crash Scenarios and Safety Testing Methods Considering Road Infrastructure)

  • 홍승준;이종욱;김규현
    • 자동차안전학회지
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    • 제16권2호
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    • pp.27-33
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    • 2024
  • In this study, an analysis was conducted on internal and external factors related to fires in electric vehicles in order to improve the safety of electric vehicles against fire accidents. To conduct the analysis, field survey data conducted on actual electric vehicle fire accidents were used, and accident-related statistical data was used. Among them, as a result of analyzing the internal factors related to fire accidents in electric vehicles, it was confirmed that high-voltage batteries are an important factor in fire accidents caused by internal factors of electric vehicles. An analysis of external factors for fire accidents of electric vehicles was also conducted in this study. The largest number of electric vehicle accidents that occurred on public roads were mainly caused by physical external forces such as collisions. Therefore, strengthening the safety of this road infrastructure could be an additional solution to improve the fire safety of electric vehicles. As a result, based on car accident cases, two crash scenarios based on road infrastructure were derived, each of which simulates a high-speed frontal collision situation and a lower-end collision situation. Additionally, detailed test methods for these scenarios were developed.

선박화재 시뮬레이션을 위한 도구 분석과 적용에 관한 연구 (A Study on the Analysis and Application of the Fire Simulation Tools for Ships)

  • 최진;이동곤;박범진
    • 대한조선학회논문집
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    • 제44권2호
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    • pp.83-92
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    • 2007
  • To improve the fire safety of ships, it is required to prepare the systematic design guideline for fire protection and the way of assessing fire characteristics quantitatively. The introduction of simulation technique based on fire engineering is useful to assess fire safety performance quantitatively. Fire simulation tools are currently developing with U.S.A., Europe and Japan as a leader. Most of current fire simulation tools were developed for building or inland structure. Therefore it is required validation process and development of data base to apply maritime environments. In this paper, I/O parameters of simulation tools such as CFAST and BRI2002 of zone model and FDS and KFX of field model analysed, and designed data base considering maritime environment. The fire simulation for the pool fire model of engine room and its adjacent compartments is performed and evaluated the results.

화재분석모델을 이용한 이중격실화재 검증분석 (Simulation of Pool Fire with Two Rooms Using FDS Model)

  • 김봉현;배용범;류수현;이공희;김윤일;문찬기;박종석
    • 대한설비공학회:학술대회논문집
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    • 대한설비공학회 2008년도 하계학술발표대회 논문집
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    • pp.1332-1337
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    • 2008
  • Fire model shall be verified and validated to reliably predict the consequences of fires within its limitations. This study aims to predict pool fire with two rooms using FDS and to coompare FDS simulation results with PRISME experimental data which can be applicable to the fire of nuclear power plant facility. Four different sizes of grid (0.08m, 0.1m, 0.125m, 0.2m) are used in the simulation and the simulated results of specific quantities such as temperature, chemical composition, heat flux and heat release rate are compared to the experimental data. From this study, the FDS simulation results with the finer grid resolution show better similarity and trend with pool fire experimental data. The sensitivity analysis and the selection of the proper size grid are essential to predict the consequences of pool fire with two rooms reliably.

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MULTI-SENSOR INTEGRATION SYSTEM FOR FOREST FIRE PREVENTION

  • Kim Eun Hee;Chi Jeong Hee;Shon Ho Sun;Jung Doo Young;Lee Chung Ho;Ryu Keun Ho
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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    • pp.450-453
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    • 2005
  • A forest fire occurs mainly as natural factor such as wind, temperature or human factor such as light. Recently, the most of forest fire prevention is prediction or prevision against forest fire by using remote sensing technology. However in order to forest fire prevention, the remote sensing has many limitations such as high cost and advanced technologies and so on. Therefore, we need to multisensor integration system that utilize not only remote sensing but also in-situ sensing in order to reduce large damage of forest fire though analysis of happen cause and prediction routing of occurred forest fire. In this paper we propose a multisensor integration system that offers prediction information of factors and route of forest fire by integrates collected data from remote sensor and in-situ sensor for forest fire prevention. The proposed system is based on wireless sensor network for collect observed data from various sensors. The proposed system not only offers great quality information because firstly, raw data level fuse different format of collected data from remote and in-situ sensor but also accomplish information level fusion based on result of first stage. Offered information from our system can help early prevention of factor and early prevision against occurred forest fire which transfer to SMS service or alert service into monitoring interface of administrator.

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화재안전을 위한 건축물 용도별 피난리스크 분석에 관한 연구 (A Study on the Analysis of Evacuation Risk by Building Application for Fire Safety)

  • 진승현;구인혁;서동구;권영진
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2021년도 봄 학술논문 발표대회
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    • pp.164-165
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    • 2021
  • In Korea, in the case of fire scenarios in performance design, it is assumed that the sprinkler is not working. In addition, it does not applicate various fire conditions. Therefore it is not enough that the accuracy about fire scenario. In foreign countries, reseach is being conducted to predict the casualities that can occur due to fire in the building space through statistical risk analysis. Also, research is consistently conducting for design that consider the sprinker probability of operation. Therefore, to analyze the fire risk of each building in Korea, the risk was analyzed using statistical data. As a result, the risk of casualties that can occur for each building use was analyzed as 0.6(persons/cases) for residential buildings, 0.25(persons/cases) for sales facilities, and 0.12(persons/cases) for buisiness facilities.

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