• 융복합기술연구소 논문집
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• 제2권2호
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• pp.55-58
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• 2012

The strategic industry in Chungbuk province is the electric and electronic related industry. In the Chnugju region, the trend of major industry have change from the electric and electronic related industry to mechanical parts and components related industry include manufacturing of automobile and transportation. In this paper, we perform statistical analysis using the micro data service provided by the Statistics Korea, The CAGR of the number of employee and value-added value in the electric and electronic related industry during past 7 years are -7.1% and -13.2%, respectively while the CAGR in the mechanical parts related industry are 14.4% and 22.9%, respectively. However, value-added value per value of shipment of the mechanical related industry is lower than that of the electric and electronic related industry.

• 대한공업교육학회지
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• 제36권2호
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• pp.65-84
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• 2011

이 연구는 지역 기반 산업의 인력 수요와 SWOT 분석을 통한 특성화 고등학교 개편에 관한 사례연구로서 경기 지역의 주요 기반 산업인 전기 전자 통신 산업의 인력 수요 분석과 SWOT 기법에 의한 학교현황 분석을 통하여 중등직업교육기관으로서의 특성화고등학교의 본래 기능인 취업률 향상을 위한 학교 개편 방향을 제시하는 데 있다. 이 연구의 결과는 다음과 같다. 첫째, 수원${\bigcirc}{\bigcirc}$여자고등학교는 전기 전자 통신관련 산업체가 밀집되어 있는 경기지역에 위치하고 있어, 관련 산업분야로의 취업에 유리한 입지 조건을 갖추고 있으므로, 지역에서 요구하는 산업 인력을 양성하는 육성 전략이 필요하다. 둘째, 지역 산업의 요구에 부응하는 인력 양성을 위한 특성화고등학교 운영체제를 유지하면서, 전기 전자 통신 산업의 흐름에 맞는 교육과정 개발 방향을 다음과 같이 두 가지로 생각해 볼 수 있다. 하나는 기업과 공조하여 기업에서 요구하는 능력에 맞춤형으로 교육함으로써 취업이 보장되는 '기업 연계 맞춤형' 교육과정으로의 개편이다. 현실적으로 기업과 연계하는 것이 용이하지 않고, 불안정한 경제 속에서 위험부담이 있다는 단점이 있으나, 교육과정 운영이 특정 기업에 얽매이거나 왜곡되지 않으면서 장기적인 안목을 갖고 기업과 공조하여 취업률을 높일 수 있다는 장점이 있다. 다른 하나는 '산업 연계 맞춤형' 교육과정으로의 개편이다. 이는 특정 기업에 초점을 맞추는 '기업 연계 맞춤형' 보다 선택의 폭이 넓고, 취업의 기회가 다양화되므로 안정적인 인력 수요 공급이 가능하며, 특화된 기술 수준의 교육과정을 지속적으로 유지할 수 있다는 장점이 있다.

• 품질경영학회지
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• 제39권2호
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• pp.292-304
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• 2011

This study is to search for the core factors of improving competitiveness of small and medium venture manufacturing company in electric and electronic industry and to do an in-depth analysis of the relations with management performance through systematic approach and to provide implications of importance of the management for the improvement factors for the domestic small and medium venture manufacturing company in electric and electronic industry. The report is analyzed how the relationship between the quality management system that was discussed in existing literature and the core factors of absorbing capability impact to the enterprise management performance.

• Journal of Information Display
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• 제2권4호
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• pp.34-38
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• 2001

We suggested new PDP packaging technology using the direct joint method, which does not need an exhausting hole and tube. The advantages of this method are simple process, short process time and time panel package. To packaging, we drew the seal line of glass frit by dispenser followed by forming the lump, which provide pumping-out path during the packaging process. And, we have performed a pretreatment of glass frit to reduce the out-gases. After which, both front and rear glass plates were aligned and loaded into vacuum packaging chamber. The 4-inch monochrome AC-PDP was successfully packaged and fully emitted with brightness of 1000 $cd/m^2$. Also, glass frit properties for pretreatment condition was investigated by AES and SEM analyses.

• Current Photovoltaic Research
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• 제6권4호
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• pp.124-132
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• 2018

The Korean electric power supply plan was prepared by greatly enhancing the environmental and safety with considering the economical efficiency of the electric equipment, the impact on the environment and the public safety. As a result, the fossil energy-based power generation sector is accelerating the paradigm shift to eco-friendly energy such as solar power and wind. Also the solar power industry is expected to grow into a super large-sized industry by converging the energy storage and electric vehicle industry. Generally, a levelized cost of electricity (LCOE) is used to calculate the power generation cost for different generation power generation efficiency, operating cost, and life span. In this paper, we have studied the future research and development direction of photovoltaic technology development for the era of massive utilization of photovoltaic solar power, and have studied the LCOE of major countries including China, USA, Germany, Japan and Korea. Finally we have reviewed USA and Japan research programs to reduce the LCOE.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 1999년도 춘계학술대회 논문집
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• pp.414-417
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• 1999

According to development of power electric technology from industrial field to electronic home appliances, recent SMPS using semiconductor is spread widely. Electric converting instrument uses a sine wave voltage source, namely an usual power source, and it gets a non-sines power source from power source because current flows through one part in waveform of one cycle. This injects higher harmonic source in source part, absorb pollution source. And this cause quality deterioration, durability shortage of electric power instrument, spreading accident of electric solver system, and so on. It can't supply an electric source of good quality in industry, so become an impedimental element in improving productivity and reliance. This study can be used in prediction of hindrance and diagnosis material and intends to suggest a countermeasure about measurement data.

• Journal of Electrical Engineering and Technology
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• 제10권4호
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• pp.1915-1920
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• 2015

ISO 26262 is an international standard for the functional safety of electric and electronic systems in vehicles, and this standard has become a major issue in the automotive industry. In this paper, a functional safety compliant electronic control unit (ECU) for an electric power steering (EPS) system and a demonstration purposed EPS system are developed, and a software and hardware structure for a safety critical system is presented. EPS is the most recently introduced power steering technology for vehicles, and it can improve driver’s convenience and fuel efficiency. In conformity with the design process specified in ISO 26262, the Automotive Safety Integrity Level (ASIL) of an EPS system is evaluated, and hardware and software are designed based on an asymmetric dual processing unit architecture and an external watchdog. The developed EPS system effectively demonstrates the fault detection and diagnostic functions of a functional safety compliant ECU as well as the basic EPS functions.

• 한국산업융합학회 논문집
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• 제25권3호
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• pp.333-340
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• 2022

Recently, the use of large-capacity secondary batteries for electric vehicles is rapidly increasing, and accordingly, the demand for technologies and equipment for battery reliability evaluation is increasing significantly. The existing short circuit test equipment for evaluating the stability of the existing secondary battery consists of relays, MCs, and switches, so when a large current is energized during a short circuit, contact fusion failures occur frequently, resulting in high equipment maintenance and repair costs. There was a disadvantage that repeated testing was impossible. In this paper, we developed an electronic short circuit test device that realizes stable switching operation when a large-capacity power semiconductor switch is energized with a large current, and applied smart ICT technology to this electronic short circuit stability test system to achieve high speed and high precision through communication with the master. It is expected that the inspection history management system based on data measurement, database format and user interface will be utilized as essential inspection process equipment.

• 전력전자학회논문지
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• 제22권5호
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• pp.382-389
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• 2017

The development of electronic technology has been rapidly achieved in the automotive industry. A trend that attaches electric equipment, including ECUs at vehicles, is observed. However, decrepit vehicles have several electrical noises and errors. The effect of electric noise on vehicles that are focused on smoke was investigated. Many researchers have argued that one of the reasons of the occurrence of smoke in vehicles is the inexact time of the occurrence of ignition. Moreover, various physical, chemical, and thermodynamic solutions were attempted to approach and many improvements were accomplished. However, in this study, the reduction of electrical and electronic noise is confirmed to improve the accuracy of the injection time on decrepit vehicles with electrical and electric technologies. Previous studies suggest that the distance between the pilot and main ignitions affect the occurrence of smoke and control the variance value of the distance between pilot and main ignitions with electric filter. Thus, the effect of reducing smoke occurred.

• 한국기계가공학회지
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• 제18권3호
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• pp.1-6
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• 2019

The purpose of this paper is to design a curtain control system for centralized management of large curtains, which includes curtain structure, electric curtain controller, communication system, user interface and remote control. Curtain structure is designed to avoid using limit switch. The system is based on microprocessor, determined the stop position and complete running time of electric curtain through time control, and achieved remote control of curtain opening and closing through wired and wireless communication modes. By establishment of a mathematical model to calculate the inertia compensation time of the electric curtain, the electric curtain can be stopped ahead of time, and the curtain can be completely closed by the inertia. The result of test experiment of 32 electric curtain controllers shows the communication success rate reached 100%.