• Title/Summary/Keyword: Emergency lighting system

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Remote control of ship's emergency lighting system (선박 비상조명 시스템의 원격제어)

  • Lim, Hyun-Jung;Yang, Hyun-Suk;Kim, Kun-Woo;Lee, Sung-Geun;Kim, Yoon-Sik
    • Proceedings of the Korean Society of Marine Engineers Conference
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    • 2005.11a
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    • pp.252-253
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    • 2005
  • This paper describes a improvement of power control characteristics of ship's emergency lighting power supply(SELPS), that power factor(PF) is improved and electric power is controlled extensively, and power ON-OFF is controlled and system parameter monitored in remote distance by PC serial communication.

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A Study on the Development of Digital Power Supply for Ship′s Emergency Lighting System (선박 비상조명용 디지털 전원장치 개발)

  • Lee, Sung-Geun
    • Journal of Navigation and Port Research
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    • v.28 no.8
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    • pp.667-671
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    • 2004
  • This paper describes an development of digital power supply for ship's emergency lighting system(SELS). Proposed system is composed of emergency power supply system(EPSS), half bridge(HB) inverter, fluorescent lamp(FL) starting circuit and microprocessor control system. Experimental works using proposed system confirm that speedy and stable power to be supplied when main power source cut-off, compared with conventional analog type, and control input power up to 35.0[%] by adjusting pulse frequency of the HB inverter.

A Study on Lighting Emergency Lamp using Photovoltaic Generation System (태양광발전시스템을 이용한 유도등용 헝광램프의 점등에 관한 연구)

  • 이상집;성낙규;이승환;오봉환;백동현;이훈구;한경희
    • Fire Science and Engineering
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    • v.14 no.1
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    • pp.22-26
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    • 2000
  • Emergency lamp is installation usage on an emergency situation or firing. It's an offer at least of brightness. It's lighting to common source usually. It's transferred to reserve battery on power stoppage. This emergency lamp is lighted from solar cell system. The solar cell should be operated at the maximum power point. This paper proposes the new control method that half-bridge inverter using the solar cell can operate emergency lamp.

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Modularization of Emergency Broadcasting and Lighting Considering Emergency Scenarios of Urban Railway Vehicle (도시철도차량의 비상 시나리오 분석을 통한 비상방송 및 비상조명의 모듈화 방안 연구)

  • Ohn, Jung-Ghun;No, Jee-Ho;Baek, Ji-Eun
    • Journal of The Korean Society For Urban Railway
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    • v.6 no.4
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    • pp.299-307
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    • 2018
  • Automatic announcement systems and emergency lights are necessary to prevent urban railway vehicles from accident, according to the emergency response guideline of domestic railroad. When emergency situation occurs, safety regulations and standards for urban railway vehicles specify that the emergency lights must be turn-on over 30 minutes as well as that the announcement should be provided by an attendant. However, as the current emergency systems use different units without a standard and system maintenance and management is not well performed, it is difficult to know the operation status. In this paper, modularized structures are given to standardize the emergency systems. The modularized structures analyzed from emergency scenarios of railway can substitute the existing broadcasting and lighting system. As a result, the optimized modular system considering cost and maintenance can be proposed by comparing all modularizations.

Monitoring of Ship's Emergency Lighting System using PLM(SELP) (PLM을 이용한 선박 비상조명시스템의 모니터링)

  • Lim, Hyun-Jung;Yang, Hyun-Suk;Kim, Kun-Woo;Baek, Young-Jin;Lee, Sung-Geun;Kim, Yoon-Sik
    • Proceedings of the Korean Society of Marine Engineers Conference
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    • 2006.06a
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    • pp.105-106
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    • 2006
  • In this paper we describe a driving, control and monitor of ship's emergency lighting system using power line modem.(PLM). Through this paper, experiment confirms that ON-OFF control of multiple SELP, real time transmission and monitor of parameters as to voltage, current, and power values are performed appropriately by PLM communication.

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A Study on the Improvement of Performance of Power Supply for Ship's Emergency Lighting System (선박 비상조명용 전원장치의 성능개선)

  • Yang Hyun-Suk;Lee Su-Hun;Jeong Tae-Sun;Lee Sung-Geun;Kim Yoon-Sik
    • Proceedings of the KIPE Conference
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    • 2004.07b
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    • pp.822-825
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    • 2004
  • This paper describes the improvement of performance of power supply for ship's emergency lighting system(SELS). Proposed system is composed of power factor correction (PFC) circuit, emergency power supply system (EPSS), half bridge(HB) inverter, fluorescent lamp(FL) starting circuit and microprocessor control system. Experimental works using proposed system confirm that speedy and stable power to be supplied when main power source cut-off, compared with conventional relay type, and control power factor up to $97.5[\%]$ and input power up to $35.0[\%]$ by adjusting of pulse frequency of the HB inverter.

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Multi Remote Control of Ship's Emergency Lighting Power Supply (선박 비상조명 전원장치의 다중 원격제어)

  • Lee Sung-Geun;Lim Hyun-Jung
    • Journal of Navigation and Port Research
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    • v.29 no.10 s.106
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    • pp.859-863
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    • 2005
  • This paper describes the improvement of power control characteristics of ship's emergency lighting power supply(SELPS), by which electric power is controlled extensively, and power ON-OFF is controlled and system parameter monitored in remote distance by PC serial communication. Proposed system is composed of step-down converter(SDC), emergency power supply circuit(EPSC), half bridge(HB) inverter, fluorescent lamp(FL) starting circuit, microprocessor control and multi communication circuit. Experimental works confirm that relative system stops when over current is detected and speedy and stable emergency power is supplied when main power source cut-off, and controls input power up to 35[$\%$] by adjusting pulse frequency of the HB inverter, and ON-OFF control of multiple SELS, real time transmission and monitor of parameters as to voltage, current, and power values are performed appropriately by PC communication.

A Study on the Remote Monitoring and Control of Ship's Emergency Lighting System (선박 비상조명 원격 모니터링 제어)

  • Yang, Hyun-Suk;Kim, Kun-Woo;Lim, Hyun-Jung;Moon, Jung-Pil;Lee, Sung-Geun;Kim, Yoon-Sik
    • Proceedings of the KIPE Conference
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    • 2005.07a
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    • pp.207-210
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    • 2005
  • This paper describes a design of several ship's emergency lighting system(SELS) that power factor is improved and power is controlled extensively, and techniques to control and monitor this system in remote distance by PC serial communication. The remote monitoring control system is composed of emergency power supply system (EPSS), half bridge(HB)inverter, fluorescent lamp(FL), microprocessor, multi communication interface. EPSS checks the voltage of the emergency backup battery in real time. In case that the voltage of 13[V] or less has been detected for 5[msec] or longer for 3 times in a row, charger circuit is connected for battery charging. Experimental works using proposed system confirm that speedy and stable power to be supplied when main power source cut-off, compared with conventional analog type, and input power up to 35.0[%] by adjusting of pulse frequency of the HB inverter.

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Real-time Intelligent Exit Path Indicator Using BLE Beacon Enabled Emergency Exit Sign Controller

  • Jung, Joonseok;Kwon, Jongman;Jung, Soonho;Lee, Minwoo;Mariappan, Vinayagam;Cha, Jaesang
    • International journal of advanced smart convergence
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    • v.6 no.1
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    • pp.82-88
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    • 2017
  • Emergency lights and exit signs are an indispensable part of safety precautions for effective evacuation in case of emergency in public buildings. These emergency sign indicates safe escape routes and emergency doors, using an internationally recognizable sign. However visibility of those signs drops drastically in case of emergency situations like fire smoke, etc. and loss of visibility causes serious problems for safety evacuation. This paper propose a novel emergency light and exit sign built-in with Bluetooth Low Energy (BLE) Beacon to assist the emergency self-guiding evacuation using devices for crisis and emergency management to avoid panic condition inside the buildings. In this approach, the emergency light and exit sign with the BLE beacons deployed in the indoor environments and the smart devices detect their indoor positions, direction to move, and next exit sign position from beacon messages and interact with map server in the Internet / Intranet over the available LTE and/or Wi-Fi network connectivity. The map server generate an optimal emergency exit path according to the nearest emergency exit based on a novel graph generation method for less route computation for each smart device. All emergency exit path data interfaces among three system components, the emergency exit signs, map server, and smart devices, have been defined for modular implementation of our emergency evacuation system. The proposed exit sign experimental system has been deployed and evaluated in real-time building environment thoroughly and gives a good evidence that the modular design of the proposed exit sign system and a novel approach to compute emergency exit path route based on the BLE beacon message, map server, and smart devices is competitive and viable.

Research for the Chemical Emergency Oxygen Supply and Lighting System for Aircraft Passengers (항공기 승객용 화학적 비상산소 공급 및 조명시스템에 대한 연구)

  • Kim, Young-In
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.30 no.2
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    • pp.55-60
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    • 2022
  • A PSU (passenger service unit) is mounted on passenger seats in a cabin on an aircraft and consists of a crew call lamp, a reading lights, an information display lamp, an emergency oxygen generator, and an emergency oxygen mask. It is a safety device for providing convenience to passengers and providing oxygen to passengers in an emergency. This paper is a study on emergency oxygen supply systems and light systems of aircraft PSUs and a control device was developed to operate the system by analyzing the B767-300 aircraft's PSU circuit diagram. And the temperature generated by the B777-200ER aircraft's emergency oxygen generator was also measured by operating it directly. Through this, precautions for explaining the operation of an oxygen mask in an emergency were described and improvements were presented. Data acquired in these research processes can be used in the future to develop aircraft PSU (passenger service unit) and emergency oxygen generators.