• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.05a
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• pp.246-248
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• 2021

This paper proposes a new general-purpose automatic fire detection system. And it deals with the contents of related research on how to design and develop for this system. The proposed system automatically notifies the user and the nearby fire department when a fire breaks out in a place where a fire alarm is installed. If this is the case, the nearby fire department can quickly confirm this fact and extinguish the fire at an early stage, thereby reducing human and property damage. The main targets of this system are houses and small buildings. The proposed fire alarm functions as a conventional fire alarm, and if a fire occurs, this fact is immediately transmitted to a nearby receiver through wireless data communication. The receiver in this paper communicates data using Korea's firefighting communication frequency band, and establishes one own network by installing it in various places to quickly receive fire alarm data at any time.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2011.11a
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• pp.31-34
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• 2011

본 논문은 소방용 무선주파수로 도입 예정인 447 MHz와 2.4 GHz의 응답특성을 확인하고자, 한국소방산업기술원에서 개발된 447 MHz 무선모듈과 2.4 GHz 무선모듈을 이용하여 건축물 내에서 무선통신 환경에 영향을 줄 수 있는 대표적 장애물인 벽체를 시료로 하여 두 주파수 간의 응답특성을 비교 분석하였다. 도출된 결과를 바탕으로 향후 도입될 소방용 무선주파수 선정을 위한 기초 자료로 활용하고자 한다.

• Fire Science and Engineering
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• v.27 no.1
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• pp.60-65
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• 2013

From an accident at 2:00 a.m. in November 2nd, 2012 that one fire-fighter died while suppressing the E land World Inc. Fire in Bupyeong-Gu, Incheon, we concluded the problem and the improvement method of using the wireless communication (the two-way radio) that the fire safety officer and the safety crew use when identifying the safety of the fire scene. And after the investigation, we could find that the communication between the fire safety officer and the safety crew was difficult in the scene of the fire by voice because of much noise, so they could rely solely on the wireless communication. Therefore, we investigated the wireless communication and its frequency now used in Incheon Fire Safety Devision. Also, we compared with those of the military and the police. As a result, by making use of the wireless communication and its frequency currently possessed in Incheon Fire Safety Division, we found that the fire safety officer and the safety crew rescuing people at the risk of their own life in the various fire scene can communicate effectively.

• Fire Science and Engineering
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• v.31 no.5
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• pp.117-122
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• 2017

The absence of fire fighters' connection to communication can bring about increased loss of life due to errors and delays in rescue and actions and danger to their own safety. Therefore, when communication infrastructure has been destroyed in an enclosed space, it is necessary to set up an emergency wire or wireless telecommunication environment to fire fighting and to secure safer environment to deal with the disaster by checking the location of fire fighters. In this research, for the establishment communication environment in an enclosed inside using Ultra-Wide Band (UWB) wireless communication network, the performance of communication position determination of a single UWB communication module was evaluated regarding 6 kinds of indoor surroundings. When the communication distance in an indoor environment of each 6 channels bandwidth of UWB communication frequency was measured, the results were as follows: the open space (Ave. 15.5 m, Max. 20 m), the corridor (Ave. 17.33 m, Max 20 m), inside retaining home furnishings (Ave. 15.3 m, Max. 20 m), vertical stairs (Ave. 4.33 m, Max. 6 m), horizontal space with a closed fire door (Ave. 6.5 m, Max. 17 m). It was also found out that the communication function and the distance function were best in the frequency range from 6489.6 to 1081.6 MHz by 7 Ch. Accordingly, the establishment of communication environment in an enclosed space is judged to be possible when UWB communication module is set up at 20 m apart and multiple channels are used.

• Journal of Advanced Navigation Technology
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• v.19 no.2
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• pp.168-174
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• 2015

Wireless communication system for firefighters has an important role as the last communication method between the commander and the firefighters in disaster sites like fire. But the operation of Gyeongnam wireless communication system is installed, and maintained and controlled without criteria for the selection of a transmitting station and the analysis of propagation environment because of the lack of budget and the absence of professional personnel. To improve the performance of the radio station, this paper theoretically calculated free space loss of UHF 400 MHz band used by all firefighters in Gyeongnam and diffractions caused by single and multiple obstacles and computed the error after comparing the results of the actual measurement to those of simulation with FRAS operated by KFL. In the results, Deygout model was the most consistent with the actual measurement for 400MHz band in Kimhae site.

• JOURNAL OF ELECTRICAL WORLD
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• s.257
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• pp.83-89
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• 1998

공공업무용(국가, 전력, 가스, 상하수도, 소방$\cdot$구급, 철도 등) 이동통신시스템의 디지털화가 (일본) 전기통신기술심의로부터의 답신(1993년 4월)을 받아 우정자령(동년 11월)으로 고시되었다. 이에 따라 미쓰비시전기에서는 시분할다원접속(Time Division Multiple Access : TDMA)방식의 공공업무용 디지털이동통신시스템을 개발하였다. 여기에 이 시스템의 개요와 서브시스템의 내용을 상세하게 소개하기로 한다. 제어국$\cdot$기지국은 표준규격보다 우수한 기능을 실현하였고, 차량탑재이동국은 소형경량화를 도모하였으며, 계속해서 주파수분할 다원접속(Frequency Division Multiple Access : FDMA) 방식의 시스템에 대한 개발도 시행하여 최적의 시스템을 구축할 수 있도록 하고 있다. 또한 다른 주파수대를 포함한 공공업무용 디지털통신시스템의 법 정비가 순차적으로 진전될 전망이어서, 공공기관을 중심으로 급속히 이 시스템의 보급이 도모될 것으로 생각된다.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.10 no.3
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• pp.242-248
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• 2017

Recently, Population has been concentrated in cities due to rapid economic growth. As a result, urban buildings are becoming more dense, high-rise, and diversified. The shape of these urban buildings increases the risk of fire, accidents and crime. The narrow living space has the characteristic of the unchanged floor. In case of a fire, the living space of the narrow residence is large in the damage because the smoke diffusion rate is fast. The radio wave transmittance and transmission distance of wireless communication used in fire fighting operations vary depending on the type of building materials and buildings. Therefore, this paper analyzes the building materials and structural characteristics of the narrow residential space for efficient fire fighting operations. We have developed a communication environment solution for a narrow residential space for the optimal fire fighting operation through the measurement of the radio wave transmittance and the transmission distance of the wireless communication.

• Fire Science and Engineering
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• v.25 no.4
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• pp.82-88
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• 2011

In this paper, an experiment was performed to confirm the effectiveness and the reliability of the wireless fire detector with a 2.4 GHz wireless module which is widely used for commercial purpose. It was the experiment of transmitted waves of wireless signals using samples of typical obstacles such as walls which may affect the wireless communication environment in the building. The experiment results show that the transmitted signal had differences in the response characteristics by wall types.

• Journal of IKEEE
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• v.14 no.2
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• pp.41-50
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• 2010

TETRA is the standard of Digital Trunked Radio System suggested by the ETSI(European Telecommunications Standards Institut ). It is adopted as Electric Power IT Wireless Backbone Network in Korea. Police station and Fire Station are using TETRA network. Currently, Power Automation Protocols are DNP3.0 in Distribution Automation System, DLMS in Auto Metering Infrastructure, IEC61850 in Substation Automation. These protocols are transmissions using CDMA or WCDMA modem. If Power Automation protocol uses TETRA networks, it can be interoperable with the systems in police or fire stations. And it has outstanding ability to handle problems in a disaster situation. So, This paper propose a gateway system of Power Automation which can transmit the power automation protocol using TETRA.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.11a
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• pp.310-312
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• 2014

현재 대구시 소방관들은 소화전, 위험물들의 위치가 모바일 어플리케이션화 되어있지 않다. 이로 인해 관리 및 화재시 현장에 나갈 때 바로 검색할 수 없기 때문에 어려움을 겪고 있다. 본 논문에서는 소화전과 위험물의 모든 정보를 제공하는 모바일 어플리케이션을 통하여 언제 어디서나 소화전과 위험물의 위치와 정보에 접근할 수 있게 하였다. 이와 함께 현재 소방대원들이 사용하는 무전기외 간섭, 끊김, 차단등과 같은 문제점을 개선하기 위하여 기존의 무전기가 사용하던 주파수대역보다 안정되고 좋은 품질의 Wi-FI 통신망을 이용하여 높은 통화품질의 모바일 단말기 기반의 무전통신 서비스를 제공한다.