• Title/Summary/Keyword: Fire control system

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The Development of Quantitative Audit System for Safety Management Systems based on Accident Database (사고 데이터베이스를 활용한 안전 관리 시스템의 정량적 Audit 시스템 개발)

  • Ahn, Sung Joon;Lee, Chang Jun
    • Journal of the Korean Society of Safety
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    • v.28 no.1
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    • pp.40-46
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    • 2013
  • In the chemical process industries, accidents have a high potential and large effects on catastrophic results. Therefore the safety management for accident prevention plays a crucial role to guarantee the process safety. For these reasons, many systematic methods for safety management system have been widely employed in the fields of chemical processes. PSM (Process safety management) is one of most representative methods. The audit system, which is one of PSM system components, evaluates the performance of PMS system. However, most existing safety audit systems are not systematic and these are performed based on knowledges and experiences of various specialist. Moreover, the safety audit is only performed based on each independent technical component. So, the results of safety audit are not a quantitative index but only a series of commentaries. Finally, it is very difficult to obtain the comparison with other plants or industries. In this study, the novel systematic method and index-based accident database of auditing safety management systems for quantitative assessment are proposed. First, the elements of safety audit replace technical methods to categories of accident database. The F-N curve of each category for accident database is employed to derive the index for quantitative assessment. The Accidental Factor Risk Index (AFRI) is suggested for evaluating the effect of each element in accident database and safety audit system. The safety audit can be modified according to the proposed index.

The Embody of the Direction Escape Algorithm for Optimization Escape (최적 비상대피로 유도를 위한 방향성 유도 알고리즘 구현)

  • Lee, Ki-Yeon;Kim, Dong-Ook;Kim, Dong-Woo;Mun, Hyun-Wook;Gil, Hyung-Jun;Kim, Hyang-Kon
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.23 no.10
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    • pp.115-120
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    • 2009
  • In this parer, we design the artificial intelligent direction escape light control system to improve/complete the defects of the existing fire fighting system, and sketch an optimum escape guide algorithm for its implementation. It intends to minimize human casualties and injuries by calculating/predicting moving line of the optimum emergency escape, by means of interlocking the sensor and the reception group and analyzing the data of the combustion point and the smoke movement. The optimum escape algorithm is designed by FLOYD algorithm which calculates the shortest distance. It consists of the measuring method which calculates the shortest distance by using hazardous factors for each condition in danger which is judged by the sensor installed in each area.

IoT-based Smart Switchboard Development for Power Supply of Entertainment Devices (엔터테인먼트 장치의 전원 공급을 위한 IoT 기반의 스마트 배전반 개발)

  • Kang, Yun-Jeong;Lee, Kwang-Jae;Choi, Dong-Oun
    • Journal of Korea Entertainment Industry Association
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    • v.15 no.3
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    • pp.311-321
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    • 2021
  • In this study, a smart switchboard for power supply of entertainment devices was developed for the following purposes. First, the heat generated when the high-temperature and humid air inside is cooled by the thermoelectric module is smoothly discharged to the outside of the switchboard, thereby maximizing the cooling effect. So, it is possible to prevent excessive temperature rise inside the switchboard. Various problems such as condensation inside the switchboard can be prevented by controlling the temperature of the switchboard in which a fire occurs due to excessive heat in summer, removing moisture due to the cooling effect, and generating heat instead of cooling in winter. Second, it is a smart switchboard control system that can reduce the salt that may permeate inside the switchboard. Third, the smart switchboard system is an IoT-controlled switchboard that collects environmental data using a variety of sensors and can remotely control devices through a smartphone, and can be easily used in various fields.

Take-Over Time Determination for High-Velocity Targets in a Multiple Radar System (다중 레이다 시스템의 고속표적 인계 시점 결정기법 연구)

  • Park, Soon-Seo;Jang, Dae-Sung;Choi, Han-Lim;Kim, Eun-Hee;Sun, Woong;Lee, Jong-Hyun;Yoo, Dong-Gil
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.27 no.3
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    • pp.307-316
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    • 2016
  • A multiple radar system is comprised of early warning radar for fast detection of a target and air defense radar for precision intercept. For this reason, target take-over process is required between the two radars. The target take-over should be performed at an appropriate time by consideration of stable tracking and effective fire control. In this paper, operation characteristics of multiple radar system are analyzed and target take-over time determination method using estimation of target tracking performance is proposed for high-velocity targets. The proposed method is validated with ballistic target defense scenarios in the developed integrated simulator.

An Implementation of Automatic Transmission System of Traffic Event Information (교통이벤트 정보의 자동 전송시스템 구현)

  • Jeong, Yeong-Rae;Jang, Jae-Hoon;Kang, Seog Geun
    • The Journal of the Korea institute of electronic communication sciences
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    • v.13 no.5
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    • pp.987-994
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    • 2018
  • In this paper, an automatic transmission system of traffic information is presented. Here, a traffic event is defined as an obstacle to an emergency vehicle such as an ambulance or a fire truck. When a traffic event is detected from a video recorded by a black box installed in a vehicle, the implemented system automatically transmits a proof image and corresponding information to the control center through an e-mail. For this purpose, we realize an algorithm of identifying the numbers and a character from the license plate, and an algorithm for determining the occurrence of a traffic event. To report the event, a function for automatic transmission of the text and image files through e-mail and file transfer protocol (FTP) is also appended. Therefore, if the traffic event is extended and applied to the presented system, it will be possible to establish a convenient reporting system for the violation of various traffic regulations. In addition, it will contribute to significantly reduce the number of traffic violations against the regulations.

A study on the job description of paramedics (1급 응급구조사의 직무분석에 관한 연구)

  • Son, In-A
    • The Korean Journal of Emergency Medical Services
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    • v.9 no.1
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    • pp.43-53
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    • 2005
  • The purpose of this study was to survey a perception of frequency & importance level of job performance, from 249 paramedics who were working at fire station. The job related activities of 4 duties, 18 tasks and 145 task elements were checked by 4 rating scale. The data were analyzed using a SPSS program for descriptive statistics. The results of the study were as follows ; 1. Some of the most frequent tasks were medical tx, managing people & organization, trauma care, pt assessment, general coping skill 2. Some of the most frequent task elements were preparation of written reports, operation of pt lifting supplies, transportation of patients on stretchers, administration of cervical collar and utilization of scoop stretcher. 3. Some of the highest level of importance in task were resuscitation of circulation, surgical tx, safety & infection control, environmental emergency care, trauma care. 4. Some of the highest level of importance in task elements were administration of cervical collar, adult CPR, infant CPR, child CPR, and AED. 5. The highest level of task elements in perception of frequency & importance were administration of cervical collar, infection control after pt care, utilization of long back board, disinfection of ambulance after ride a long, care of chest pain pt, care of unconscious pt, tx of asthma. 6. A difference between frequent & importance score were due to lack of supplies(41%), structural problems(30%) and medical control system(16%), lack of skills(10%), Suggestion; 1. This paper would be more reliable and confirm through wilder range of survey. 2. It would be necessary of more depth survey through dacom study from paramedic. 3. Development of field oriented protocol & curriculum that based on task elements which have high score of both frequency & importance level is required.

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A Method to Acquire Bigdata for Predicting Accidents on Power Switchboards (배전반 안전사고 예측을 위한 빅데이터 자료 획득 방안)

  • Lee, Hyeon Sup;Kim, Jin-Deog
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2021.10a
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    • pp.351-353
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    • 2021
  • In recent years, while the demand for electricity is rapidly increasing, fire accidents due to negligence in management of switchboards. In particular, switchboards for industrial and electrical resource control can cause serious problems. Thus, for the safety management of power switchboard, a secondary response is conducted to control firing when a specific condition value is satisfied, but in this case, it is highly likely that a considerable amount of time has elapsed after firing. In this paper, we propose a method to acquire big data for the development of a switchboard temperature and power control system that can actively respond to the current situation by monitoring and learning the temperature of the switchboard's busbar connection in real time. Specifically, a method for periodically acquiring and managing data such as temperature and power from various scattered sensors is proposed.

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A Study on Civil and Criminal Liabilities of 119 Rescue and Its Legal Protection (공무원인 119구급대원의 직무수행과 관련하여 발생할 수 있는 민$\cdot$형사상 책임과 그에 따른 법적 보호를 위한 대책에 관한 연구)

  • Bae Hyun-A;Yun Soon-Young;Jung Koo-Young;Lee Kyung-Whan;Kim Chan-Woong
    • Fire Science and Engineering
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    • v.19 no.2 s.58
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    • pp.45-62
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    • 2005
  • This thesis has defined the legal status of 119 rescue who plays a major role in the Korean prehospital emergency medical system and reviewed the various issues that may occur depending on work related legal liabilities. As a result, the purpose of this study was to represent the countermeasures for legal protection of 119 rescue required for the quality improvement of prehospital emergency medical system and as well as the countermeasures for risk management prepared for its related lawsuits. The legal liabilities of 119 rescue officers can be divided largely into public law liabilities and civil and criminal liabilities. In order to decrease the incidences of legal problems and provide the legal protection to rescue officers, the liability of supervising physician should be emphasized when the emergency medical practice is performed by a rescue officer under their supervision by consolidating medical control and the rescue officer should have legal liability on his emergency medical practice. itself Also, the emergency medical service guideline for 119 rescue officers should be prepared and their works should be performed according to such a guideline and procedures. In addition, the accurate legal documentation on emergency medical system from on-site to ER and related mobilization should be framed and preserved. Moreover, it is required to enact a new law such as the Good Samaritan Act or the Rescue Officers Protection Act.

A Study on the Disaster Prevention Technology of the Switchboard with Upper and Lower Bending Type Seismic Pads (상하굴절형 내진패드를 설치한 수배전반 방재기술에 관한 연구)

  • Lee, Taeshik;Seok, Gumcheul;Lee, Jaewon;Kim, Taejin;Kim, Jaekwon;Cho, Woncheol
    • Journal of Korean Society of Disaster and Security
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    • v.10 no.1
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    • pp.85-90
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    • 2017
  • The purpose of this study is to investigate the effect of vertical and horizontal refraction on the lower part of the power supply and control system of various facilities and machinery that use electricity, so that the power distribution system, which is an important electric facility installed in buildings and public facilities, Type earthquake resistant pads to protect the substructure and prevent short-circuiting on the upper part of the system. The GR-63-CORE (Scale 8.3 class) It is earthquake disaster prevention and disaster prevention technology that satisfies seismic performance. As a research result, it is possible to protect the electricity and communication infrastructure, which can contribute to shortening the time for recovering the electric facilities to the normal state in case of an earthquake, and preventing the fire caused by the destruction of the electricity supply facility in case of an earthquake. As a result, it is possible to minimize the spread of fire that occurs when a large-scale earthquake occurs and to minimize the damage of people and damage to property, and it can contribute to the securing of electric infrastructure that enables citizens to quickly recover to daily life even after suffering a major earthquake. In addition, the technology can be applied to ensure the seismic resistance of the equipment in the communication and computer room, and it can be applied to various fields where the facility function can be stopped due to the shaking of the earthquake base.

Empirical Study of the PLSP (Priority Land and Signal Preemption for Emergency Vehicles (긴급차량의 우선차로 및 우선신호 도입효과 -청주시를 대상으로-)

  • Lee, Jun;Ham, Seung Hee;Lee, Sang Jo
    • Journal of the Society of Disaster Information
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    • v.16 no.4
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    • pp.650-657
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    • 2020
  • Purpose: In this study, the effectiveness of pilot project of PLSP (Priority Lane and Signal Preference) system, which was operated in Cheongju City, was analyzed. Method: The priority signal was operated by a police officer switching to a blue signal when approaching a fire truck through CCTV, and the priority lane of emergency vehicles was displayed on the road to enable preferential traffic. VISSIM simulation analysis was performed for the 1.2km section (3.8km) of the pilot project section and vehicle data was analyzed for some of the test operation sections. Result: Simulation analysis shows that the moving speed of the emergency vehicle can be increased by 42 km/h with the introduction of PLSP, which can be increased by approximately twice the speed. Travel time was reduced by about 3 minutes, and considerable improvements of 69% compared to cities that are not operating was analyzed. The pilot operation of Cheongju City showed a time-shortening effect of about two minutes on average, with the average time reaching 4 minutes and 14 seconds in the first period and the average time reaching 5 minutes and 40 seconds in the second period. Conclusion: The system has been shown to be effective in minimizing time-to-site arrival of emergency vehicles.