• Title/Summary/Keyword: Fire Detection

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A Study on Design and Operation Performance of Automatic Fire Detection Equipment (P-type One-class Receiver) by Bidirectional Communication (양방향 통신이 가능한 자동화재탐지설비(P형 1급 수신기)의 설계 및 동작특성에 관한 연구)

  • Lee, Bong-Seob;Kwak, Dong-Kurl;Jung, Do-Young;Cheon, Dong-Jin
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.61 no.2
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    • pp.347-353
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    • 2012
  • In this paper, authors will develop the quick and precise remote controller of automatic fire detection equipment (P-type one-class receiver) based on information communication technology (IT). The remote controller detects the fire and disaster in the building automatically and quickly and then activates the facilities to extinguish the fire and disaster, monitoring such situation in a real time through wire-wireless communication network. The proposed remote controller is applied a programmable logic device (PLD) micom. of one-chip type which is small size and lightweight and also has highly sensitive-precise reliabilities. The one-chip type PLD micom. analyzes digital signals from sensors, then activates fire extinguishing facilities for alarm and rapid suppression in a case of fire and disaster. The detected data is also transferred to a remote situation room through wire-wireless network of RS232c and bluetooth communication, and then the situation room sends an emergency alarm signal. The automatic fire detection equipment (AFDE) based on IT will minimize the life and wealth loss while prevents fire and disaster.

A Flame-Detection System Robust to Lighting and Environments (조명과 환경 변화에 강건한 화염 검출 시스템)

  • Park, Jang-Sik;Kim, Hyun-Tae;Park, Soo-Chang;Son, Kyung-Sik
    • Fire Science and Engineering
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    • v.22 no.1
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    • pp.68-75
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    • 2008
  • In this paper, we introduce a fire-detection system which is robust to light sources and environment changing. We can decide the threshold values that classify the regions between a fire flame and light sources by analyzing them in RGB color space. But we could not discriminate quasi-flame region from fire flame region with the value. The difference of mean-histogram technique make it possible to extract flame region more efficient because fire flame is continuously changing after it occurs. In order to validate real fire, this paper uses regional compactness in the end of process. Computer simulation show that proposed method make more robust to light sources and environment changing.

Visual Sensing of Fires Using Color and Dynamic Features (컬러와 동적 특징을 이용한 화재의 시각적 감지)

  • Do, Yong-Tae
    • Journal of Sensor Science and Technology
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    • v.21 no.3
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    • pp.211-216
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    • 2012
  • Fires are the most common disaster and early fire detection is of great importance to minimize the consequent damage. Simple sensors including smoke detectors are widely used for the purpose but they are able to sense fires only at close proximity. Recently, due to the rapid advances of relevant technologies, vision-based fire sensing has attracted growing attention. In this paper, a novel visual sensing technique to automatically detect fire is presented. The proposed technique consists of multiple steps of image processing: pixel-level, block-level, and frame level. At the first step, fire flame pixel candidates are selected based on their color values in YIQ space from the image of a camera which is installed as a vision sensor at a fire scene. At the second step, the dynamic parts of flames are extracted by comparing two consecutive images. These parts are then represented in regularly divided image blocks to reduce pixel-level detection error and simplify following processing. Finally, the temporal change of the detected blocks is analyzed to confirm the spread of fire. The proposed technique was tested using real fire images and it worked quite reliably.

A Study on the Smart Fire Detection System using the Wireless Communication (무선통신을 이용한 스마트 화재감지 시스템에 관한 연구)

  • Chung, Byoung-Chan;Na, Wonshik
    • Journal of Convergence Society for SMB
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    • v.6 no.3
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    • pp.37-41
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    • 2016
  • In this paper, we propose a fire alarm system that utilizes Wi-Fi to alarm multiple people at once. This system, based on Arduino, uses smoke, flame and temperature sensor units to sense fire and send detection data to a server via wireless communication system. The server uses stored data to relay current fire situations gathered from nearby sensors to smartphones. It also automatically reports the fire using location data from sensors. Using this system, we were able to retrieve fire alarm from sensors via push notification of our smartphone. We also confirmed the establishment of linkage with sensors and automatic report of fire via SMS. From this result, the possibility of sending real-time notifications via the Internet toward nearby smartphones about disasters such as conflagration has been proven to be feasible.

Installed Spacing and Reponse Time Index of Heat Detection Devices (열감지장치의 응답시간지수와 경계구역)

  • 권오승;이복영;김동석
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 1996.11a
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    • pp.72-75
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    • 1996
  • The objectives of this paper investigate the effect of installed spacing on the activation of spot type heat detection devices. The flow of hot gases under a ceiling resulting from the impingement of a fire plume activates heat detectors and sprinklers. Local temperature and velocity in this ceiling jet are usually expressed with the function of a ceiling height, the distance from a fire location and the heat release rate of fire. And detectors having different. RTI respond in different ways to the same temperature and velocity of ceiling jet. Thus great care should be taken to decide installed spacing of heat detection devices by considering above effects.

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Unattended fire detection system using a wireless communication device (무선통신 단말기를 이용한 무인화재 감지시스템)

  • Chang, Rak-Ju;Lee, Soon-Yi;Kang, Suk-Won
    • Proceedings of the Korea Contents Association Conference
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    • 2015.05a
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    • pp.25-26
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    • 2015
  • The Unattended fire detection system using a wireless communication device is designed in this paper. If a fire occurs in some area, the system can detect and automatically extinguish the fire. The major functions for the system are: Unattended detection system for fire based on wireless communication system and Automatic extinguish device system; Thermal imaging camera and video camera system; Monitoring viewer and map viewer system.

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Development of Real-time fire and Smoke Algorithms Using Surveillance Camera in Tunnel Environment (터널 내 감시 카메라 영상을 이용한 실시간 화염 및 연기 탐지 기법의 개발)

  • Lee, Byoung-Moo;Han, Dong-Il
    • Proceedings of the IEEK Conference
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    • 2007.07a
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    • pp.219-220
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    • 2007
  • In this paper, we proposed image processing technique for automatic real time fire and smoke detection in tunnel environment. To avoid the large scale of damage of fire occurred in the tunnel, it is necessary to have a system to minimize and to discover the incident as fast as possible. The fire and smoke detection is different from the forest fire detection as there are elements such as car and tunnel lights and others that are different from the forest environment so that an indigenous algorithm has to be developed. The two algorithms proposed in this paper, are able to detect the exact position, at the earlier stage of incident.

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Literature Review and Current Trends of Automated Design for Fire Protection Facilities (화재방호 설비 설계 자동화를 위한 선행연구 및 기술 분석)

  • Hong, Sung-Hyup;Choi, Doo Chan;Lee, Kwang Ho
    • Land and Housing Review
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    • v.11 no.4
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    • pp.99-104
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    • 2020
  • This paper presents the recent research developments identified through a review of literature on the application of artificial intelligence in developing automated designs of fire protection facilities. The literature review covered research related to image recognition and applicable neural networks. Firstly, it was found that convolutional neural network (CNN) may be applied to the development of automating the design of fire protection facilities. It requires a high level of object detection accuracy necessitating the classification of each object making up the image. Secondly, to ensure accurate object detection and building information, the data need to be pulled from architectural drawings. Thirdly, by applying image recognition and classification, this can be done by extracting wall and surface information using dimension lines and pixels. All combined, the current review of literature strongly indicates that it is possible to develop automated designs for fire protection utilizing artificial intelligence.

Statistics and Management Systems of Unwanted Domestic and Foreign Fire Alarms (국내·외 비화재보의 통계 및 관리체계에 관한 연구)

  • Hwang, Euy-Hong;Lee, Sung-Eun;Choi, Don-Mook
    • Fire Science and Engineering
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    • v.34 no.2
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    • pp.30-40
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    • 2020
  • In the event of a fire and a disaster, prompt and accurate alarms inside and outside the building are directly related to the minimization of damage and the success of life evacuation. However, due to unwanted fire alarms in automated fire detection systems, the number of dispatches by misunderstanding in the 119 service is increasing. This causes the insensitivity to the safety of building managers and the waste of the fire-fighting power. Therefore, in this study, the statistical databases and literature on unwanted fire alarms in Korea and abroad (USA, UK) were identified and the management systems for unwanted fire alarms were compared and analyzed to identify problems of statistics in the management systems for unwanted fire alarms.

A Study on forest fires Prediction and Detection Algorithm using Intelligent Context-awareness sensor (상황인지 센서를 활용한 지능형 산불 이동 예측 및 탐지 알고리즘에 관한 연구)

  • Kim, Hyeng-jun;Shin, Gyu-young;Woo, Byeong-hun;Koo, Nam-kyoung;Jang, Kyung-sik;Lee, Kang-whan
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.19 no.6
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    • pp.1506-1514
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    • 2015
  • In this paper, we proposed a forest fires prediction and detection system. It could provide a situation of fire prediction and detection methods using context awareness sensor. A fire occurs wide range of sensing a fire in a single camera sensor, it is difficult to detect the occurrence of a fire. In this paper, we propose an algorithm for real-time by using a temperature sensor, humidity, Co2, the flame presence information acquired and comparing the data based on multiple conditions, analyze and determine the weighting according to fire in complex situations. In addition, it is possible to differential management of intensive fire detection and prediction for required dividing the state of fire zone. Therefore we propose an algorithm to determine the prediction and detection from the fire parameters as an temperature, humidity, Co2 and the flame in real-time by using a context awareness sensor and also suggest algorithm that provide the path of fire diffusion and service the secure safety zone prediction.