• Proceedings of the Korean Information Science Society Conference
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• 2007.10c
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• pp.125-129
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• 2007

최근 들어 국방부는 RFID 기술을 기반으로 u-군수통합정보체계를 구축하기 위해 국방탄약관리 시스템 구축사업과 확산사업 그리고 F-l5K 자산관리 사업을 진행하였지만 국방 RFID 태그 코드의 표준화 부재로 임시방편적인 방법을 사용하고 있다. 따라서 국방 분야에서 어떠한 RFID 태그 코드사용이 바람직한지 영역의 표준과 경제성, 관리성, 확장성, 네트워크 환경, 정책적 사항, 그리고 미군의 활용사례 등에 관한 다양한 관점을 분석하여 코드를 선정하는데 도움이 되도록 하였다.

• Proceedings of the Korea Multimedia Society Conference
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• 2004.05a
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• pp.346-349
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• 2004

본 논문은 유비쿼터스 환경에서 효율적으로 환자 관리 서비스를 제공할 수 있는 시스템을 제안하고자 한다. 환자 관리를 위한 기본적인 환자 정보는 RFID 태그를 통하여 관리되며 RFID 리더 장비는 PDA 및 다양한 모바일 장치로 설계된다. RFID를 기반으로 한 시스템은 기본적으로 환자의 위치 관리 서비스를 제공하며 환자의 센싱 장비를 통하여 환자에 대한 정보를 수시로 체크하고 관리할 수 있다. 특히, 물리적 요소(환자)와 다양한 서비스를 지원할 수 있는 애플리케이션을 위한 프레임 워크를 구성하고, 모바일 Agent를 개발하여 모바일 단말기와 컴퓨팅 시스템에서의 환자 관리 시스템을 위한 프로토타입을 구현한다.

• The Journal of the Korea Contents Association
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• v.9 no.1
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• pp.62-72
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• 2009

In this paper, we propose an application of RFID(Radio Frequency Identification) tag to food wastes disposal system of Cheongju city. The existing system of Cheongju city is monthly fixed amount levy system. The weak point of this system must pay a same commission in spite of each other different food wastes quantity. Also the accurate occurrence quantity of the food wastes and present condition grasp of control are impossible. It will not be able to reflect to a policy decision because does not manage the control of the food waste efficiently. On the other hand, when a food wastes measuring system using RFID is executed tag, it will manage and analyze automatically the obtained data. And collecting, transporting and handling of the food wastes come to be very easy. Also the reproduction and embezzlement of the tag are impossible. As a result of this system, it brings the decrement of the food waste. Therefore the economic effect could be come true and the food wastes is controlled environment-friendly. The food wastes disposal system using RFID tag will be able to contribute in u-city constructions with RFID/USN technology which pursues from the government.

• Journal of the Korea Society of Computer and Information
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• v.15 no.9
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• pp.109-117
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• 2010

Recently, study on RFID Tag Searching technique which is used to find a specific tag in particular tag group were developed continuously. RFID tag searching technique can be applicate in various fields such as product management, finding children, and electronic anklet. To implement a RFID tag search system, RFID tag searching protocol should be considered various security threats such as reader and tag tracking, privacy, etc. For implementing a safe RFID tag lookup system, it is important to consider the potential security threats such as the tag tracking problem, and the privacy of the owner of the tag reader problem. There exists an RFID tag lookup system that satisfies a few security requirements, but the privacy of the owner of the tag reader problem has still been left unsolved, and even if it were solved, it requires a considerable amount of cryptographic operations to be performed which results in a decrease in performance. This paper proposes a system that does not degrade the performance while solving the privacy of the owner of the tag reader problem.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.07a
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• pp.119-122
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• 2013

본 논문에서는 물품관리의 효율성을 위해 모바일 RFID리더기와 스마트 모바일 기기를 이용한 스마트 선반 시스템을 제안한다. 이 시스템을 사용하여 관리자는 물품에 부착되어진 태그를 읽어서 실시간으로 물품의 상세정보를 열람할 수 있고, 선반에 부착되어진 태그를 읽어서 물품의 재고나 위치오류 상태를 파악할 수 있다. 이는 각 선반마다 RFID리더기를 부착시킨 형태의 기존의 스마트선반 시스템과 유사한 기능을 수행하면서도 구축비용과 물품 재질에 따른 인식 오류의 해결부담을 줄일 수 있는 효과가 있다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.7
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• pp.1295-1300
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• 2006

In this paper, we have developed RFID systems with integrated tag location data for efficient logistics information systems. These are consist of RFID readers with GPS module and RFID networks to service tag location data. The developed RFID readers can get location informations Of the tags, transfer them high speed by TCP/IP protocols, and operate as web servers. And we presented a simple service network system based on EPC network to service both location and tag data. The proposed system can be applicable to tracebility or finding locations of the products.

• KIPS Transactions on Computer and Communication Systems
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• v.3 no.10
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• pp.329-336
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• 2014

Pipe spool is the most important element of plant equipment in plant construction site. Currently, the plant construction site manage the pipe spool location and usage history by handwriting. Frequently, the pipe spool is moved to unpredictable places by field workers in many construction sites and in cases like this, the pipe stool is replaced with another similar pipe spool. Since it's hard to determine the exact location of some of the pipe spools, it takes unnecessary time and labour to find the missing pipe spools, which proves that stock management is not under control. The purpose of our system is to make the identification of real-time location of the field pipes possible by attaching UHF RFID tags to the pipe spool, which will be used to connect with UHF RFID reader and antenna on vehicles. A field test conducted by the proposed system resulted in the success rate of 98% and the missing 2% was recuperated by hands-on correction, which proved that stock management through the proposed method can be 100% effective. The proposed system is expected to reduce labour costs and make stock control of assets possible, as well as applicable to similar stock management environments.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.33 no.10B
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• pp.885-893
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• 2008

In RFID system, reader collision happened when multiple readers try to read the tags at the same time. Because reader collision reduces tag recognition performance, it is required for RFID system to have reader anti-collision algorithm. In this paper, we propose reader anti-collision algorithm based on hierarchical structure, where a master reader controls the slave readers to avoid the reader collisions. It is verified through simulations that the proposed algorithm enhances the performance in terms of leader collision probability and tag reading time.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.5
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• pp.1235-1242
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• 2015

In global shipping logistics, it is important for users to keep track of the location of their continuously moving cargos. Analyzing the GPS data stream coming from the tag which is attached to the cargo, we are able to keep track of the cargo location in terms of going into or out of a certain logistics area using the information of the spatial relationship change between the tag and the logistics area. In this paper, we propose a simulation system for measuring the precision and false alarm rate of the cargo location tracking algorithm which generates spatial events over the global logistics areas. Due to the difficulty of experiment with a real tag, we developed a tag emulator to create a virtual tag which operates exactly like a real tag. We show the cargo location tracking system works correctly with the tag emulator which communicates with it using the same protocol as the real tag.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.11a
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• pp.609-612
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• 2010

최근 스마트 폰을 이용한 사용자들이 생성하는 사진 데이터의 양이 급속히 증가하였다. 폭발적인 사진 데이터 양의 증가는 사용자가 원하는 사진에 대한 접근을 어렵게 하였다. 때문에 본 연구에서는 사진의 접근 및 관리의 효율을 높이기 위한 폭소노미를 통한 태그 추천 시스템을 안드로이드 모바일 플랫폼과 서버의 연계로 구현하였다. 구현된 애플리케이션은 25,000 장의 사진을 기반으로 하는 폭소노미를 통해 태그 추천을 하며, 태그 추천에 평균적으로 5.5 초의 시간이 걸렸다.