• Title/Summary/Keyword: Fire alarm

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Implementation of Intelligent Fire-Detection Systems Using DSP (DSP를 이용한 지능형 화재검출시스템 구현)

  • Kim, Hyun-tae;Song, Chong-kwan;Park, Jang-sik
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2009.05a
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    • pp.411-414
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    • 2009
  • Many victims and property damages are caused in fires every year. In this paper, intelligent fire-detection systems with embedded fire-detection algorithms for early fire detection and alarm is proposed to reduce fire damages by using image processing technique, high speed digital signal processor(DSP) technique, and information technique. The fire detection algorithms used for the proposed systems consist of flame and smoke detection algorithms. If flame or smoke is detected respectively, the corresponding alarm signal can be transferred to management computer. And if flame and smoke is detected simultaneously, the fire alarm signal shall be generated. Through several experiments in the physical environment, it is shown that the proposed system works well without malfunction.

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RECENT RESEARCH TREND OF THE FIRE DETECTION SYSTEM

  • Baek, Dong-Hyun
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 1997.11a
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    • pp.507-517
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    • 1997
  • As structures are higher, large-sized and more complex, we should detect the fire at the beginning and cope with it to reduce the loss of mankind and the physical damage due to fire. So we have investigated and developed various kinds of fire detection system, and do the efforts for minimizing the nonfire alarm. As there exists a close relationship between the technology development and the market potential, a comparison between the number of fires in special buildings and detection types were made to find out market potential based on the annual statistics on fire products inspection. In addition, we have discussed the causes of nonfire alarm and the fire detection system and prospect the research trend of the fire detection system.

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Development of a Digital Home Electric Overload Alarm Performance Evaluation System for Smart Home Automation (스마트 주택 자동화를 위한 주택 전기과부하 경보 성능 평가 시스템 개발)

  • Ko, Yun-Seok
    • The Journal of the Korea institute of electronic communication sciences
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    • v.14 no.2
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    • pp.339-344
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    • 2019
  • In this paper, a digital home electric overload alarm system based on DSP for smart home automation which can minimize electrical fire damage caused by an home electrical overload was made experimentally. To verify the validity of the home electrical overload alarm technology, an electric overload alarm performance evaluation system which can artificially generate the electrical overloads was designed, developed, and constructed, and the effectiveness of the overload alarm developed by the overload test was verified. In particular, an overload test EMTP model based on EMTP-RV was developed, and simulation and measurement results obtained from the overload test were compared, and the reliability of overload performance verification results was confirmed.

Performance Analysis of the the Single Alarm Detector in the Rooms of Single Houses by Computer Simulation (시뮬레이션을 통한 주거공간 단독경보형감지기의 성능 분석)

  • Lim, Geun-Joo;Park, Sang-Cheon;Baek, Eun-Sun
    • Fire Science and Engineering
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    • v.34 no.4
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    • pp.29-35
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    • 2020
  • This study was conducted to examine the performance in the space for a single alarm type detector installed in a single house. Three types of houses were used, including two types of one-story and two-story houses. A computer simulation program was used to predict the sound pressure level in response to the occurrence of an alarm sound in a residential space. The characteristics of the sound source applied to the simulation were directly measured and used as input data. As a result of simulation, it was found that the sound pressure level in the kitchen and living room generally met the standard when the alarm sound of the detector occurred. However, the sound pressure level in the bedroom was predicted to be at least 20 dB (A) lower than the American Fire Protection Association standard of 75 dB (A). Therefore, a plan should be prepared to maintain a sufficient sound level in the bedroom space inside the house, and efforts will be needed to ensure safe evacuation in case of fire by establishing relevant standards.

A Study on Effective Fire Countermeasures for Facilities for the Elderly and Children (노유자시설의 효율적인 화재 대응방안에 관한 연구)

  • Hwang, Euy-Hong;Choi, Han-Bit;Choi, Doon-Mook
    • Fire Science and Engineering
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    • v.34 no.4
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    • pp.107-114
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    • 2020
  • With the development of the national industry, the importance of the elderly and children such as the elderly, disabled, and children is recognized. Similarly, the number of facilities for the elderly and children is increasing. Fires at facilities for the elderly and children cause heavy casualties. In response to these events, it is essential to activate fire alarms promptly and accurately and to secure evacuation routes. In this study, the laws and statistics related to facilities for elderly and children were reviewed, and problems with legal terms-such as elderly, children, others, unwanted alarm of fire alarm systems, blind spots of fire compartment standards, securing evacuation routes, and absence of standards for life safety rescue organizations-were identified. As an improvement measure, the legal definitions of similar terms-such as elderly, children, unwanted alarm checklist, and establishment of standards for fire prevention compartment-and introduction of other terms-evacuation elevators, the establishment of standards for life-safety rescue organizations, and provision of flame retardation objects for evacuees-were proposed.

Fast and Efficient Method for Fire Detection Using Image Processing

  • Celik, Turgay
    • ETRI Journal
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    • v.32 no.6
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    • pp.881-890
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    • 2010
  • Conventional fire detection systems use physical sensors to detect fire. Chemical properties of particles in the air are acquired by sensors and are used by conventional fire detection systems to raise an alarm. However, this can also cause false alarms; for example, a person smoking in a room may trigger a typical fire alarm system. In order to manage false alarms of conventional fire detection systems, a computer vision-based fire detection algorithm is proposed in this paper. The proposed fire detection algorithm consists of two main parts: fire color modeling and motion detection. The algorithm can be used in parallel with conventional fire detection systems to reduce false alarms. It can also be deployed as a stand-alone system to detect fire by using video frames acquired through a video acquisition device. A novel fire color model is developed in CIE $L^*a^*b^*$ color space to identify fire pixels. The proposed fire color model is tested with ten diverse video sequences including different types of fire. The experimental results are quite encouraging in terms of correctly classifying fire pixels according to color information only. The overall fire detection system's performance is tested over a benchmark fire video database, and its performance is compared with the state-of-the-art fire detection method.

Non-Fire Alarm Management and Customized Automatic Guidance System (비화재보 관리 및 맞춤형 자동안내 시스템)

  • Hyo-Seung Lee;Ju-Sang Lee;Woo-Jun Choi
    • The Journal of the Korea institute of electronic communication sciences
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    • v.18 no.2
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    • pp.355-360
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    • 2023
  • Fire is a disaster that causes irreversible damage to many people due to personal injury and property damage. Various fire detection equipments are installed around us to detect and cope with it quickly. However, due to various problems such as artificial, environmental, and aging, fire detection equipment is activated even though it is not a actual fire, and there are many problems such as delaying the support to the necessary fire scene. In this paper, we analyze the non-fire alarm of the fire detection equipment and propose a system that enables the field staff to check the scene situation through the video as a way to prevent the mobilization due to the misinformation by checking the fire. The purpose of the present invention is to stably cope with a disaster by suggesting a customized automatic guidance system which induces a rapid evacuation by sending an evacuation guidance notification to a range of a fire occurrence neighboring area, and supports a rapid and accurate processing by a rapid dispatch of a firefighter, rather than a wide range of guidance such as an existing emergency disaster guidance letter when it is determined to be an actual fire through the confirmation procedure.

A Plan of Existing System Interface within Station (역사내 기존 시스템 인터페이스 방안)

  • Lee, Won-Jae;An, Tae-Ki;Shin, Jeong-Ryol
    • Proceedings of the KSR Conference
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    • 2011.05a
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    • pp.1550-1555
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    • 2011
  • This paper presents the system interface standard that are associated with additional devices like sensor nodes as well as fire monitoring panel, panic button and emergency call in city railroad environment. Existing fire monitoring panel, panic button and emergency call system is responsible for fire detection and alarm, emergency alarm and communication with the manager. Recently, researches that are associated with NVR-based intelligent integrated surveillance systems and existing alarm system are activated but most of the system is dedicated to it existing. In order to expand devices that is supported other monitoring function, separate device configuration or modification of integrated surveillance system are inevitable. In this study, interface standard between standard controller, integrated command center and each device that facilitate additional expansion of integrated surveillance system and avoid the extra cost is presented.

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