• Journal of the Korea Institute of Information and Communication Engineering
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• v.11 no.6
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• pp.1207-1213
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• 2007

This paper has researched water supply facilities management using real-time water utility monitoring system based on USN(Ubiquitous Sensor Network) which is consisted of wireless sensors transferring waterworks facilities md treatment information about a valve-room and flowmeter-room of water supply installation. In the manholes, it was installed with flowmeter, pressure sensors, vibration sensors, Co-sensors, and hydro-thermograph sensors. These measurement values which are received by PDA are used for facilities operation on the spot safely and conveniently. It has also provided safe installation management via CDMA(Code Division Multiple Access) network which transfers data to remote servers to monitoring at a distance place. With safety management system of water supply facilities on USN technology convenience and safety is increased in real situation, and it is expected that we can supply clean water to people as much safer and more effective water supply installation management.

• Journal of the Korea Safety Management & Science
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• v.8 no.6
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• pp.139-147
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• 2006

In case of domestic automobile manufacturers introducing and running a make-to-order production system, JIT system is to provide a necessary number of components at a right place in time which is a specific supply chain management, is different from other occupations. This study is for establishing a efficient production planning and finding a management method to correspond with a manufacturing system and diversified supply chain management and building an information system to support it. For this, we analyze the relevant business process and utilize various informations occur in supply chain of domestic automobile components manufacturer. It will contribute to not only reliability improvement of production management system but also satisfaction for due date of products.

• Proceedings of the Safety Management and Science Conference
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• 2006.11a
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• pp.193-200
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• 2006

In case of domestic automobile manufacturers introduce and run a order production method, JIT system is to provide a necessary number of components for a right place timely which is a specific supply chain management is different from other occupations. This study is for establishing a efficient production planning and finding a management method to correspond with a manufacturing system and diversified supply chain management and building an information system to support it. For this, analyze the relevant business process and utilize various informations occur in supply chain of domestic automobile components manufacturer. It will contribute to not only reliability improvement of production management system but also satisfaction for due date of products.

• Proceedings of the KIEE Conference
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• 2003.11a
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• pp.144-146
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• 2003

최근 석유공급의 불안정과 에너지 소비의 급격한 증가로 인하여, 국가적인 차원에서의 에너지 절약사업이 주요 시책으로 추진 중에 있으며, 전력사업에서도 에너지 절감이라는 차원뿐만 아니라 경영에 직결되는 중요한 과제로 전력손실에 대한 관심이 높아져가고 있다. 특히, 전력시장 자유화라는 흐름 속에서 전력손실 문제는 전기요금의 산정에 있어서 합리적인 근거를 제시한다는 점에서 중요한 관심 사항이 되고 있다. 본 논문에서는 배전손실을 정확하게 산정하는 방안을 마련하여, 배전사업자가 배전망을 효과적으로 운용하여 손실을 최소화할 수 있도록 유도하며, 전력공급 전반의 효율성을 향상시킬 수 있도록 한다.

• 한국IT서비스학회:학술대회논문집
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• 2006.11a
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• pp.517-522
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• 2006

본 논문은 RFID를 활용하여 자동차 제조 분야의 Traceability 구축 사례를 연구한 것이다. 전통적인 자동차 제조 환경 분석을 통하여 자동차 제조 분야의 Traceability 구축의 필요성과 RFID 기술의 적용 가능성을 분석하였다. RFID 기술을 활용한 통한 Traceability 구축을 위한 제조 및 공급망 관련 프로세스의 변경 내용 및 효과에 대하여 분석하였다. 실제 사례 기업은 Traceability 구축을 통하여 기존의 일 단위 결산 재고방식에서 실시간 재고방식으로 전환할 수 있게 되었으며, 상주원의 재고량 판단으로 부품 공급 시기와 양을 결정했던 방식에서 실시간 정보전달로 입고와 불출량 결정할 수 있게 되어 사내부품고의 최소 최적화가 가능하게 되었으며, 납입지시 신뢰도 향상 및 정보이용범위 확대(트래킹, 품질정보 등)를 통한 오보충 및 재고 진부화 방지 효과를 얻고 있다. 본 논문은 사례 기업의 Traceability 구축 과정에서 프로세스 변경, 관리 내용의 변경, RFID 기술의 적용 부분, 협력사와의 협업 등에 관련된 주요 이슈에 대하여 분석하여 향후 관련 분야의 Traceability 구축시 고려 요소 및 시사점을 제시하였다.

• International Journal of Highway Engineering
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• v.11 no.3
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• pp.129-139
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• 2009

The transportation network is a critical infrastructure in the event of natural and human caused disasters such as rainfall, snowfall, and terror and so on. Particularly, the transportation network in an urban area where a large number of population live is subject to be negatively affected from such events. Therefore, efficient traffic operation plans are required to assist rapid evacuation and effective detour of vehicles on the network as soon as possible. Recently, ubiquitous communication and sensor network technology is very useful to improve data collection and connection related emergency information. In this study, we develop a specific algorithm to provide evacuation route and detour information only for vehicles under emergency situations. Our algorithm is based on shortest path search technique and dynamic traffic assignment. We perform the case study to evaluate model performance applying hypothetical scenarios involved terror. Results show that the model successfully describe effective path for each vehicle under emergency situation.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2011.07a
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• pp.167-168
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• 2011

한반도 및 근해의 지진 지진해일 감시를 위해 지진관측망이 구축되어 있다. 이러한 지진관측망는 향후 조기경보를 위해 보다 조밀하게 설치될 예정이다. 지진계측기의 정보통신망은 대부분 행정망 및 전용회선 단일망으로 운영되고 있으며 지진계측기의 전력체계는 상용전원의 단일 전력체계로 운영되고 있다. 국내 지진관측망 운영상의 문제점으로 단일 정보통신망 운영으로 인한 통신 단절 발생 시 지속적인 자료 수집 불능과 단일 전력체계인 상용전원 단절시 통신장비에 전원공급 단절로 인한 실시간 자료 전송 장애 발생이 있다. 또한 지진관측기의 정보통신망과 전력체계에 대한 원격감시 및 관리 기능이 부재하여 유지 보수 및 안정적 자료수집에 취약점을 가지고 있다. 이러한 취약점을 극복하기 위해서는 각종 재해에 대한 내재해성과 유지보수성을 향상시키는 것이 시급하며 정보통신망과 전력체계의 다중화/이중화가 좋은 대안이 될 수 있다.

• Journal of the Korea Society of Computer and Information
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• v.17 no.7
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• pp.139-146
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• 2012

In this paper, we implement an m-LIS(Mobile-Logistics Information System) for an effective logistics management in consideration of logistics process and work environment. The m-LIS could perform the entire business process every minute and promote the work efficiency by tying up with ERP and POS system. Moreover, this system could enhance the management level of service and supply chain. Due to the reason that the existing logistics business was not computerized and automated, most of operation was accomplished by means of workers experience and convention. This problem brought about both the ineffective management and logistics quality deterioration by weakening the control power of the logistics site. In order to solve this problem, we put focus on providing the real-time operation monitoring environment on the spot, the satisfaction of the efficiency on the spot, and the optimized system by building up the logistics information system. Furthermore, we attest that the new logistics system could properly cope with the increase of the quantity of goods transported owing to stable logistics information support and the market expansion and growth caused by the firm interface between the new ERP and its related system.

• Proceedings of the Korean Society for Quality Management Conference
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• 2009.10a
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• pp.40-47
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• 2009

911테러 이후, 세계 무역환경은 물류의 안전과 원활화를 요구하게 되었고, 이런 패러다임의 변화에 따라 우리나라도 '09년 4월 AEO공인 제도를 도입하였다. 무역공급망(Supply Chain) 기업은 AEO 공인을 받기 위하여 내부통제시스템을 구축하여야 하며, 그 중 적정한 위험관리절차를 갖추어야 하는 바, 동 절차에 대한 특별한 방법론이 아직 제시되지 않은 상태이다. 따라서, AEO와 관련된 위험관리방법론을 연구하고, 이를 기업에 확산되어 있는 6시그마 방법론과 접목시켜 기업의 AEO 공인을 지원하고 기업활동의 효율성을 높이고자 함이다.

• Journal of the Korean Society of Clothing and Textiles
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• v.30 no.12 s.159
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• pp.1697-1707
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• 2006

Relentless advances in information technology are constantly transforming market dynamics of the retail industry. RFID is an emerging innovative technology that can reduce labor costs, improve inventory control and increase sales by effective business processes. Apparel retailers need to recognize the benefits of RFID and identify critical success factors. By focusing on apparel retailers, this study attempts (1) to identify the reality of RFID associated with benefits; and (2) to prospect the implementation of RFID in apparel retailing. We conducted a focus group interview with selected six panels who were experts of retail industry in the United States to obtain data regarding RFID attributes. Content analysis was used to generate related excerpts and classify 31 attributes of RFID benefits from the meaningful 173 responses. For experience of RFID, retailers were familiar with RFID technology and expressed the belief that RFID basically would support an existing retail system for speed to markets. However, retailers addressed the level of experience with RFID technology that they were still in the early adoption stage among few innovative companies. The content analysis identified five dimensions of RFID benefits for apparel retailing: Visibility and Velocity, Revenue Enhancement, Customer Service, Security, and Employee Productivity. This result lends support to the belief that RFID has a significant potential to streamline supply chain management, store operation and customer service for apparel retailing. This study provides intellectual and managerial implications far practitioners and researchers by postulating the effective use of RFID in the apparel retail industry.