• 한국정보컨버전스학회:학술대회논문집
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• 2008.06a
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• pp.75-86
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• 2008

This paper presents the design, implementation, and evaluation of the RFID Guardian, the first-ever unified platform for RFID security and privacy administration. The RFID Guardian resembles an "RFID firewall", enabling individuals to monitor and control access to their RFID tags by combining a standard-issue RFID reader with unique RFID tag emulation capabilities. Our system provides a platform for coordinated usage of RFID security mechanisms, offering fine-grained control over RFID-based auditing, key management, access control, and authentication capabilities. We have prototyped the RFID Guardian using off-the-shelf components, and our experience has shown that active mobile devices are a valuable tool for managing the security of RFID tags in a variety of applications, including protecting low-cost tags that are unable to regulate their own usage.

• Journal of the Korea Safety Management & Science
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• v.9 no.6
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• pp.155-162
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• 2007

Recently, retail store automation appliance market is changed with traditional POS systems techniques and RFID, radio POS system, and self checkout system, etc. in the foreign advanced distribution industry. Retailers and consumers require convenient POS system which can provide more functions and fast service. These requests bring to rapid evolution of various H/W and S/W corresponding with POS system. In this study with the POS systems and the RFID technology we develop core technology of movable u-POS system based on RFID that can use in large store. So we propose u-Cart system that can alternate the current shopping cart and POS terminal and that provide value added services to customer. As the result we present the configuration of u-Cart terminal device(WMDT : Wireless Mobile Data Terminal) including RFID reader module that can provide various information to consumer and some convenient client applications that are running in WMDT and u-POS administration service module.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.2
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• pp.119-122
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• 2005

RFID(Radio Frequency IDentification) is appearing by point technology by Ubiquitous environment of new paradigm and Logistics' application. But, RFID chip of this is high price and short bandwidth, low power and interference etc. can become technological problem. This is getting into obstacle in common use. Reader and tag, Embedded software etc.. that is accomplishing standardization is imported paying most expensive Royalty. This paper is RFID cognition system that use PDA in Ubiquitous environment to apply to Logistics system. RFID cognition system processes input/output of fundamental information attaching tag to Logistics of products. And RFID cognition system supports quick and correct and safe synthetic Logistics managerial system through construction of database. This can prove minimization and customer service of Logistics expense. RFID cognition system is advantage that can widen range of application to area that cognition system of existent fixing style can not do. Also, It can expect economical effect through inexpensive system construction.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.05a
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• pp.835-838
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• 2007

RFID는 물류와 유통분야에서 활용이 되고 있으며 RFID 시장에서 미개척 분야인 모바일 RFID 시장을 선점하기 위하여 정부주도로 모바일 RFID 시범서비스를 2006년부터 시행하고 있다. 모바일 RFID 시범서비스는 모바일 RFID 코드 해석을 위하여 Broker를 활용하는 모델을 사용하였다. 하지만 기존의 Broker 모델에는 RFID 태그 정보 조회를 위한 빈번한 ODS 질의, 그에 따른 통신 트래픽 문제, 서비스 속도 문제가 있었다. 본 논문은 Broker 모델의 성능을 개선하기 위하여 단말 어플리케이션에 RFID 코드를 필터링하는 기능을 구현하였고 단말 어플리케이션과 Broker간의 데이터 처리 과정을 단순화하여 성능을 개선하였다. 또한 모바일 RFID 서비스의 활성화를 위하여 사용자 생성 정보 시스템을 제안하고 구축하였다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.32 no.10A
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• pp.1015-1022
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• 2007

In this paper, dual-band digital codec for UHF(Ultra High Frequency) and MW(Micro Wave) is proposed for an RFID reader system. Most RFID systems have been supported only one protocol. But, There are many protocols of each bandwidth. Especially, UHF bandwidth which is widely used on the globe consists of A,B,C type, and more standards will be established. Recently, Since an interest about mobile RFID system is increasing, the RFID system with more than one protocol will be need. Therefore, this paper suggests a dual-band digital codec with UHF and MW bands for an RFID reader system. Standards used in this system are 18000-6C and 18000-4 standards. The digital codec is synthesize by the Quartus II compiler. Target device is EPC20Q240C8 which is family of CycloneII. Main Clock is 19.2MHz and elements of FPGA which is used for the system is 18,752.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2006.04a
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• pp.155-161
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• 2006

These days, ubiquitous and RFID are often mentioned by mass media. This piper will introduce RFID-aided Baggage Tracking System that has been implemented under a government project, identify areas for improvement based on the up-to-date operation, and finally a research and development approach to address the issues. The document will also discuss mobile RFID R&D business that our research center is carrying out, and suggest technical requirements for successful RFID business from perspective of corporate research center. Last but not least it will talk about some opportunities that require cooperation among the govement, business and academy to ensure the relevant industry advances RFID business in Korea.

• Proceedings of the Korean Information Science Society Conference
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• 2010.06d
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• pp.348-353
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• 2010

현재의 모바일 RFID 서비스는 RFID 리더가 장착된 휴대폰로 누구나 태그에 대한 접근이 가능하므로, 태그 정보가 불법적으로 수집될 수 있으며 추적이 가능하다. 특히 PAN을 구성하는 기본장치 뿐만 아니라 사용자의 소지품에 부착된 각종 RFID에 의한 정보 유출 및 사생활 침해가 큰 문제가 될 것으로 우려된다. 왜냐하면, 기존의 고정형 RFID의 경우, 리더기는 항상 고정되어 있고(예를 들면, 상점의 계산대), RFID 태그만 이동되었으나, 모바일 RFID의 경우는 "휴대폰=RFID 리더기"이므로 사생활 침해 요소가 더욱 심각해지게 된다. 따라서, 본 논문에서는 선택적인 태그 블록킹과 인가된 리더에게는 태그를 대신하여 모바일 리더가 응답하는 프락시 기능을 가진 모바일 RFID 프락시 시스템을 설계하고, 제안 시스템의 기능 및 구조적 특징을 기존 기법들과 비교 분석한다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.6
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• pp.1453-1459
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• 2010

Recently, the aim of cold storage warehouse is not only to provide preservation of the quality of perishable foods but also to use state-of-the-art information systems to rapidly move products across the cold chain. An RFID (Radio Frequency Identification) is an automatic identification method that detects signals from mobile objects, and tracks and traces movement of the objects. RFID can be used to turn a cold storage warehouses into a real-time system. In this paper, we develop an cold storage management system to support the optimized business processes with RFID system. First of all, business processes in the cold storage warehouse are analyzed. Then design factors which should be considered for incorporating RFID are defined. Design values which set to the design factors can be extracted from using RFID deployment simulator. as a result, the design values make RFID to be efficiently integrated to existing business processes.

• Journal of the Korea Society of Computer and Information
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• v.14 no.2
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• pp.1-8
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• 2009

Today the use of RFID is extended in medical. circulation market, manufacture, security field, etc. Besides, the book-lending and the attendance management system are on an increasing trend in the use of RFID The developed dormitory management system is composed of a support program, a room management program, a manager program, and a mobile program etc.. In the support program a student(or a manager) can see his(or all member's) entrance and exit history. The room management program decides whether a student can enter the dormitory or not and manages the use of the power after or inquiring a RFID's input tag information into database server. The manager program is able to input and modify a room state and the fixtures information in the room required to operate the room management program, to set up and retrieve a student's entrance and exit information and a room state information. The mobile program enables a manager to check student's identity whether he is in or out, and the manager can know the personal information of being out in detail.

• Proceedings of the KAIS Fall Conference
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• 2008.05a
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• pp.267-269
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• 2008

최근 유비쿼터스 사회가 진전 됨으로서 RFID에 대한 관심이 높아지고 있다. 특히 휴대폰과 RFID를 결합한 모바일 RFID 시스템은 현재 ETRI, 모바일 RFID포럼 등 관련 기관을 중심으로 표준화 및 서비스 발굴 등의 작업이 추진되고 있다. 모바일 RFID는 휴대폰에 UHF RFID리더를 내장함으로써 현재 개념 단계인 유비쿼터스 기술을 실생활에 밀접히 시도되는 주요 기술이다. 또한 다양한 문제점도 내포하고 있으므로 이를 체계적으로 분석하고, 모바일 RFID서비스는 사용자들을 대상으로 RFID 태그를 이용한 B2C서비스이므로 필연적인 개인 프라이버시 침해 문제가 발생 할 수 있으므로 이에 대한 해결책이 반드시 필요하므로 해결방안에 대하여 연구하였다.