• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2001년도 디자인학연구 2001 봄 학술발표회 논문집
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• pp.16-17
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• 2001

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2012년 추계학술대회
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• pp.435-443
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• 2012

First introduced in 1962, LED(light-emitting diodes) emitted low-intensity red light, but modern versions are now available across the ultraviolet, visible, and infrared spectrum, many with very high luminance or brightness. As a result, growing importance of potential safety harzards for human. Now when certificated of CE provide that testing through IEC/EN 62471 for any lamp. Korea standard adopted as it IEC 62471:2006, Photobiological safety of lamps and lamp systems without change, but effectiveness is incomplete. In this paper, we introduce analysis and direction that urgently come into effectiveness of KS C IEC 62471 as a national standard specifications.

• 자동차안전학회지
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• 제8권4호
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• pp.6-11
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• 2016

The objective of this study is to present the inspection standards of motorcycle lamps affecting motorcycle traffic accident in night time. The inspection standards of motorcycle lamps recommended by CITA International Motor Vehicle Inspection Committee are surveyed. Also, the domestic safety standards of motorcycle and inspection standards of passenger car are considered. The inspection standard and method with principal reasons of rejections of head-lamp, number plate lamp, front-rear position lights, stop lamp and direction indicators of motorcycles are suggested.

• 자동차안전학회지
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• 제9권4호
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• pp.55-60
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• 2017

This paper presents the motorcycle inspection standards of electrical system, frame & body, lights and speedometers. 187 real-world motorcycles are visually and mechanically inspected according to the developed inspection standards. The non-compliance rate of inspection standards of the lights is 23.7% and main causes are damage, tinting, painting and coloration of head-lamp, number plate lamp, front-rear position lights, stop lamp and direction indicators of motorcycles. Also, 28.4% of motorcycles are dropped from the luminous intensity inspection standard. Motorcycle electrical system cannot be visually inspected. The motorcycle inspections standards are improved reflecting 187 cases of real-world motorcycle inspection results.

• 자동차안전학회지
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• 제11권4호
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• pp.16-21
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• 2019

In recent years, most automobile manufacturers have been using slim light source images to imprint their own brand image and identity. A light guide type lamp is widely used for making these kinds of a slim light source image. A light guide lamp means using a light emitting diode light source at one end of a long cylindrical pipe. The light from the light emitting diode source moves through the pipe by total reflection principle. Moving light is sent forward by various optic structures which is applied in the cylindrical pipe. However, the light guide lamp has a problem that the image of the light differs depending on the viewing direction, and in some cases there is dark section. It means light guide has low quality about lighting image. In this paper, trying to improve the fundamental problems of the light guide mentioned above by using various triz methods. Through functional modeling, estimating the factors affecting the light in the light guide lamp and make various ideas to improve the lighting image using the chain effect cause analysis, function oriented search scientific database techniques. Using these kinds of various TRIZ methods, finally find solutions that can improve the brightness and lighting uniformity of the light guide lamp. The ideas obtained in this paper were applied to actual vehicle development, and several patents achievements were obtained. In conclusion, it is proved that TRIZ method is useful for making ideas in actual automobile industrial field and is also a useful method for acquiring patent.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.724-730
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• 2011

A turnout serves to switch train from one line to another. The turnout consists of a Point which is switchs the rail to induce direction, and a Crossing which is cross over two line on the plane surface, and a Lead where is middle section in Point to Crossing. Point machine, consists of a turnout, is important facilities in railway signal, that is safety issue relates in derailment of the train. Recently, train delay and accident frequently occurred because of the turnout include in a point machine trouble of electrical and mechanical. So in order to prevent train accident the research is advanced, install of normal and reverse indication lamp in a point machine, development of adherence detector for sensing the status of adhesion between the stock rails and tongue rails etc. In this paper investigates the problem which is connected with a turnout trouble, include in a point machine, occurrence at the time of train accident, and then proposed to the safety system model in order to prevent the train accident in turnout.

• 한국축산식품학회지
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• 제44권2호
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• pp.309-325
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• 2024

The consumption of meat has been increasing, leading to a dynamic meat and meat processing industry. To maintain the quality and safety of meat products, various technologies have been explored, including intense pulsed light (IPL) technology. Several factors affect the inactivation of microorganisms by IPL treatment, including light intensity (fluence), treatment duration, pulse frequency, and the distance between the lamp and the samples. Meat products have been studied for IPL treatment, resulting in microbial reductions of approximately 0.4-2.4 Log. There are also impacts on color, sensory attributes, and physico-chemical quality, depending on treatment conditions. Processed meat products like sausages and ham have shown microbial reductions of around 0.1-4 Log with IPL treatment. IPL treatment has minimal impact on color and lipid oxidation in these products. Egg products and dairy items can also benefit from IPL treatment, achieving microbial reductions of around 1-7.8 Log. The effect on product quality varies depending on the treatment conditions. IPL technology has shown promise in enhancing the safety and quality of various food products, including meat, processed meat, egg products, and dairy items. However, the research results on animal-based food are not diverse and fragmentary, this study discusses the future research direction and industrial application through a review of these researches.

• 한국인터넷방송통신학회논문지
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• 제17권6호
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• pp.137-143
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• 2017

횡단보도와 교차로에서 시각 장애인을 위한 보행 안전시설은 부족하다. 시각 장애인을 위해 인도에 점자 블록이 설치되고 교차로에 RF 원격 제어 시스템으로 제어되는 신호등과 음향 신호기가 설치되어 있다. RF 원격 제어 시스템은 하나의 주파수를 사용하여 교차로에서 인접한 신호등과 음향 발생기들을 동시에 동작시키는 문제가 있다. 본 논문은 비콘을 사용하여 교차로에 설치된 시각 장애인을 위한 신호등과 음향 신호기를 식별하고 진행 방향의 신호등과 음향 신호기를 적외선 통신으로 동작시키는 스마트 지팡이를 개발하였다. 본 논문에서 개발한 스마트 지팡이는 블루투스 통신을 통해 모바일 앱과 연동하여 시각 장애인을 위한 보행자 내비게이션을 제공 할 수 있다.