• Title, Summary, Keyword: Street lighting

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Development of Street Lighting Fixtures in Residential Areas (아파트의 가로조명기구 개발)

  • Chang, Soo-Jung;Oh, Eun-Suk;Choi, An-Seop;Choi, Sung-Youl
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • pp.79-83
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    • 2004
  • The street lighting needs to provide safe and comfortable environment together with producing good atmosphere suitable for the pedestrian's various needs. Thus, the choice of the street lighting fixtures should be based on the needs of the them and the necessities of the street rather than the precedences or appearances. This study proposes street lighting fixtures based on the need of the street lighting and also analyzes the problems of current fixtures.

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PLC Filter Capacity Improvement and Efficiency Evaluation of Smart Street Lighting System (스마트 가로등 시스템의 전력선통신 필터 성능 개선 및 효율 평가)

  • Kim, Myung-Ho
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.58 no.2
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    • pp.154-157
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    • 2009
  • In order to give handiness to the management of the existing street lighting system which is based on the one way communication and to reduce the maintenance cost, the power line communication filter in the two way communication which is based on the CDMA communication and power line communication was improved and accordingly the stability of the communication performance was improved. Also, the efficiency of existing street lighting system and smart street lighting system was evaluated as Visual studio system. As a result, when the number of street lights is 10,000, the hours of daily work fell 50% and the number of necessary maintenance staff decreased 40%. Compared to the maintenance costs of the existing street lighting system, it could be expected to have the cut costs of almost 100 million won a year on the basis of 60 switch board and 1,200 street lights.

Study on Simulation Design of Light Emitting Diode Luminaires for 100 W Safety Street Lighting

  • Shin, Ik-Tae;Lee, Se-Il;Yang, Jong-Kyoung;Park, Dae-Hee;Lee, Dong-Jin
    • Transactions on Electrical and Electronic Materials
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    • v.11 no.3
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    • pp.138-144
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    • 2010
  • Optical analysis is necessary to optimize light emitting diode (LED) safety street lighting. In this study, optical analysis was conducted for 100 W LED safety street lighting. Experimental research on such a single LED was the first undertaken. Simulation modeling based on the optical properties of the single LED has compared between average road illuminances and has them analyzed with Korean Industrial Standards for LED safety street lighting (KS C7658:2009). The simulation results demonstrated that the illumination performance (average road illuminance) was 75.3 lx at a height of 4 m and an area of $32\;m^2$, 45.25 lx at a height of 5 m and an area of $72\;m^2$, and 30.05 lx at a height of 6 m and an area of $128\;m^2$. 100 W safety street lighting (model CE180-ST-OS) designed by simulation was also compared between product and 100 W simulation modeling, and error rates averaged 5.6%. The 100 W LED safety street lighting base designed in simulation modeling was proven by comparison experiments. Through the simulations and the corresponding analysis, it was found that the tested 100 W LED safety street lamp had reasonable performance. The design method for LED safety street lamps has been summarized based on the optical analysis.

A Study on Development Direction of Smart Pole for Smart City Construction

  • Kim, Tae Yeun;Bae, Sang Hyun
    • Journal of the Chosun Natural Science
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    • v.12 no.1
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    • pp.1-8
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    • 2019
  • Smart pole is one of mega trend in smart city development. It has multi-function to get as much as data from the street to better city management. And smart street lighting of smart pole as core part of smart city development is being implemented by many cities in globally. Refer to the latest edition of Navigant Research's Smart City Tracker includes smart city projects in 221 cities, a quarter of which are deploying smart street lighting ranging from initial pilots to citywide and regional deployments that span tens and even hundreds of thousands of lights. The most important feature of smart street lighting solution is "Connectivity" through the IoT technology. In order to implement the smart city, we should have so-called intelligent watchdog and mesh networked post for keeping the various smart city technology development progress and operation properly. Smart street lighting solution could be main infrastructure as an enabler for a range of smart city applications. We can talk about the expected role of smart street lighting for the smart city development on this paper.

A Field Investigation on Light Trespass of Residential Buildings by Street Lighting (주거지역에서 가로조명에 의한 침입광발생 분석)

  • Ha, Na;Kim, Jeong Tai
    • KIEAE Journal
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    • v.10 no.2
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    • pp.71-78
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    • 2010
  • Spill light by street lighting is a kind of light pollution creating cozy night atmosphere, interfere visual private and cause insomnia at night. This study was to survey light trespass of the windows in residential buildings. According to outdoor lighting control guidance in Seoul, three different areas were selected to investigate the trespass light to windows. The results were as follows: 37% of the buildings of 386 buildings were influenced by street lighting, and 47% of windows were occurred light trespass. Therefore, the street lighting affected light trespass at night in survey area. The main reasons of light trespass were luminaire type, luminaire pole height, and street width. For protecting the light trespass to windows, it is necessary to non-cutoff fixture to full cutoff fixture by the street width.

A Development of Street Lighting Fixtures and Operation Plan in Residential Areas (주거단지의 가로조명기구 개발 및 운용방안)

  • Chong, Soo-Jung;Oh, Eun-Suk;Choi, An-Seop
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.19 no.4
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    • pp.17-23
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    • 2005
  • The street lighting needs to provide safe and comfortable environment together with producing good atmosphere suitable for the pedestrian's various needs. Thus, the choice of the street lighting futures should be based on the needs of the them and the needs of the street rather than the precedences or appearances. This study proposes street lighting futures based on the need of the street lighting and their operation plan, and also analyzes the problems of current fixtures.

An Efficient Hybrid LED Street Lighting Management System Design using Standalone Solar Photovoltaic (독립형 태양광 발전을 이용한 효율적인 하이브리드 LED 가로등 조명관리 시스템 설계)

  • Hong, Sung-Il;Lin, Chi-Ho
    • Journal of Institute of Control, Robotics and Systems
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    • v.20 no.9
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    • pp.984-993
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    • 2014
  • In this paper, we propose a design for an efficient hybrid LED street lighting management system using standalone solar photovoltaic. The proposed efficient hybrid LED street lighting management system was composed of hybrid power conditioning system, gateways, LED street lights and a monitoring server. The hybrid power conditioning system was designed to charge produced power by solar photovoltaic panels in day time, and supply power to the LED street lights in night time. If there is insufficient power, the system was designed to operate using firm power, because the system utilizes photovoltaic power. A system control algorithm allied to the lighting management system, and experimented by being configured to the functions that are able to perform real-time monitoring and remote control through the lighting management system even when absent. In the result of the efficiency analysis of the hybrid lighting management system proposed in this paper, we were able to increase the energy efficiency compared to existing lighting control systems by reducing power consumption and electricity costs.

A Study on Manufacturing Processes of Street-lighting System using COH LED Package (COH형 LED 패키지를 이용한 가로등 생산공정에 관한 연구)

  • Lee, Jong Hang;Yang, Keun Ju
    • Journal of the Korean Society for Precision Engineering
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    • v.30 no.3
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    • pp.349-355
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    • 2013
  • Recent high oil price results in the development of energy saving technology such as LED lighting system. Street-lighting system using COH LED package can save energy because the heat dissipation through cupper base is better than conventional technology. Studies on manufacturing processes of lighting system are insufficient even though LED package design and its heat analysis have been studied. This study focuses on the problem and solution of manufacturing processes such as LED packaging process, optimized emission angle, and LED bar dimension for mechanical assembly. As a result, we established better manufacturing alternatives of LED packaging and street-lighting system with higher lighting efficiency of 84 lm/W, as well as good illumination intensity of 39.7 lux at 6 m from lighting source.

Secondary Optical Design of LED lens with Asymmetric Light Distribution for street (비대칭 배광을 갖는 LED 가로등 2차렌즈 설계)

  • Kim, Sung-Hyun;Shin, Ik-Tae;Yang, Jong-Kyung;Park, Dae-Hee
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • pp.162-162
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    • 2010
  • In this study, optical analysis for 100W LED safety street lighting was conducted. Experimental research on such single LED was the first undertaken. simulation modeling based on optical properties of single LED has compared single LED product also designed 100W simulation modeling has compared average road illuminance with Korean Industrial Standards for LED safety street lighting(KS C7658:2009). 100W safety street lighting (model: CE180-ST-OS) designed by simulation has been also compared between product and 100W simulation modeling, and error rates have showed average 5.6[%]. Designed 100W LED safety street lighting base on simulation modeling was proven by comparison experiments. Through the simulations and the corresponding analysis, it was found that the tested 100W LED safety street lamp had reasonable performance. Design method for LED safety Street lamps have been summarized, based on the optical analysis.

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Development of the LED Street Lamp by using Wired and Wireless Remote Control System (유무선 원격제어장치를 이용한 LED 가로등 제어 시스템 구현)

  • Park, Sung-Wook;Ohm, Woo-Young
    • Journal of the Institute of Electronics and Information Engineers
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    • v.51 no.10
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    • pp.235-242
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    • 2014
  • LED lighting control technique is one of the ongoing research areas for efficient management of LED lighting. In this paper, we design and implementation of LED street lighting remote control system which have a wired and wireless communication function for LED street lighting remote control. The implemented system can automatically dimming and individual(or consolidated) LED street lighting via RS-485/422 or Wi-Fi. In experimental results, the implemented remote control system was satisfactory for all of the desired functions.