• KIEAE Journal
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• 제10권2호
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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.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 제38회 하계학술대회
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• pp.935-936
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• 2007

Industry of street lighting systems are growing rapidly and going to complexwith rapid growth of industry and cities. To control and maintain complex street lighting system more economically, various street light control systems are developed. Nevertheless most of developed systems have some drawbacks. So we are going to develop new light control system which can overcome old systems drawbacks. We surveyed various street light control systems and analyzed its characteristics. Through these efforts, we found that common drawbacks of most light control systems are uneasiness of handling and difficulty of maintenance. To reduce uneasiness of handling and difficulty of maintenance in operating light control system, we designed new street light control system by using Zigbee communication technique. In this thesis, we describe on the H/W design of new street light control system designed by using Zigbee communication protocol.

• 조명전기설비학회논문지
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• 제22권6호
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• pp.61-69
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• 2008

본 논문에서는 고공시설물인 태양집광판을 사용한 가로등의 집광효율과 유지보수 성능 향상을 위한 자동 승하강 장치를 설계 제작하였다. 자동 승하강장치는 태양집광판을 사용한 가로등과 유기적으로 동작가능하곤 태양집광판의 집광 각도를 조절하여 집광효율을 향상시킬 수 있다. 또한 태양집광판과 가로등을 쉽게 탈부착할 수 있는 구조로써 유지보수가 용이하도록 하였다. 자동 승하강장치를 장착한 태양집광판을 사용한 가로등을 활용함으로써 태양집광판의 집광효율 향상에 따른 가로등의 조명효율을 향상시킬 수 있고, 가로등의 유지보수 비용 절감 및 교체작업 시간 동안의 교통 정체현상 등을 예방할 수 있을 것으로 기대된다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2018년도 춘계학술대회
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• pp.195-196
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• 2018

이 논문에서는 Zigbee 통신모듈을 가로등에 사용하여 가로등들을 연동제어하는 방법을 소개한다. 가로등이 이동체를 감지하면 Zigbee 통신 네트워크를 사용하여 이동체 감지 정보를 다른 가로등들에게 알린다. 이동체를 감지하거나 이동체 감지 정보를 다른 가로등에게서 전달 받은 가로등은 일정시간 동안 가로등을 점등한다.

• 한국생산제조학회지
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• 제25권3호
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• pp.230-236
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• 2016

This research attempted simplifications to the LED street light for price competitiveness. The street light was simplified by replacing the SMPS with an IC driver on the PCB using an AC-type LED. The optical element that shape of a line-shaped lens covered LED crowded. Thus, this study aims to improve LED efficiency by using the minimum optical system. In order to satisfy the M3 regulation of street lighting at grade, the lens was divided into two parts depending on the forward direction of the light. Further, the changes in the number of LEDs located on part 1 and part 2 of the lens were analyzed. Through simulation, we determined the proper light distribution that meets M3 regulation of street lighting.

• Design & Manufacturing
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• 제16권2호
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• pp.20-25
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• 2022

In line with the rapid economic growth of many countries, fossil fuel energy sources are also rapidly depleting. Therefore, the price is also rising rapidly, so it is necessary to develop new and renewable energy sources such as hydropower, geothermal power, nuclear power, wind power and solar energy to replace fossil fuel energy in the future. In this study, development of rotating concentrator module system, development of rotating module control control system, development of lamp and charge control controller, configuration and prototype production of rotating concentrating solar LED street light system, efficiency of rotating concentrating solar LED street light, and power production. The research was conducted in the order of evaluation of comprehensive performance tests such as consumption and consumption. As a result, the developed high-efficiency rotation-concentrating hybrid solar LED street light module system has a 50% higher light-gathering efficiency than existing products by tracing sunlight by self-developing a rotation-collecting module on existing solar LED street lamps according to the characteristics of Korea's topography. and the power generation was improved by more than 40%.

• 전기학회논문지P
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• 제58권2호
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• pp.142-147
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• 2009

Conventional HP(high pressure) sodium or Metal-halide lamps have a life span of around one year requiring at least annual replacement and maintenance. High Power LED lights require no regular maintenance further increasing savings on replacement bulbs, access equipment and labour costs. New installations benefit from a substantial reduction in the cost of expensive heavy duty cable required for sodium lighting. Especially, LED light can achieve variable color temperature, high functional performance in the field of street light. There are two main method to achieve variable color temperature function of the street light. one method is using RGB multi-chip LED, the other is using Orange-White LED method. In this paper, it was compare RGB Multi-chip LED with white-orange LED for there characteristics performance.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2010년도 하계학술대회 논문집
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• pp.283-283
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• 2010

Smart street light controller is a product with advance micro controller base for energy saving in conventional street lighting systems. Intelligent Street light controller are specially developed for automation and energy saving in conventional street light systems and lighting systems. It is so designed that it operates on sunrise & sun set timings according to longitude of particular location with facilitate to set month wise civil twilight timings to cope up with all seasons. Dimming (Power down) mode selection switch on/off at fixed times with relay or contactor. Night dimming, staggering and intelligent control reduces burn hours and increases the lifetime of lamps with about 30% and low annual operating cost type base are among the most inexpensive wireless technologies available. Low initial costs As PLC wireless, there is no need to establish cable connection.

• 산업기술연구
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• 제30권B호
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• pp.113-118
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• 2010

In this paper, We proposed remote dimming control system for Light Emitting Diode(LED) street light using Power Line Communication(PLC). LED will be used widly by indoor or outdoor lighting because of semi-permanent life and environment restriction. For energy saving of street light, the dimming control system is very necessary and the PLC is a very efficient technique. Thus, in this paper we proposed the remote dimming control system for LED street light using PLC. A performance of the proposed system was validated by experimental results.

• Journal of Advanced Marine Engineering and Technology
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• 제38권4호
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• pp.430-436
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• 2014

무선통신망을 이용하여 도로 보안등에 대한 상태관리와 원격제어를 통제하는 시스템은 보안등제어기, 중계기, 관제서버 등의 3개의 기능으로 구성되며 보안등간의 통신망은 메쉬 형태를 지원하는 지그비 네트워크를 채택하고 중앙의 관제센타는 CDMA 방식의 무선통신망을 사용하였다. 이를 연동하기 위하여 지그비와 CDMA를 모두 수용하는 게이트웨이인 중계기는 저전력의 32-bit 마이크로콘트롤러인 Cortex M3로 설계 제작하였다. 관제서버와 중계기간의 전송방식을 단문메시지 방식과 소켓 방식을 모두 사용하여 원격제어 시스템을 구축함으로써 공중통신망의 이용료를 최소화하면서 보안등의 상태관리가 실시간으로 관리 가능함을 확인하였다. 실험에서는 95개의 보안등에 2개월간의 실시간을 통하여 확인하여 일일 9회 데이터를 취득하여 결과를 분석하였다.