• Journal of the Korea Society of Computer and Information
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• v.15 no.10
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• pp.157-164
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• 2010

Recently, the Radio Frequency Identification(RFID) system has been growing with many promising features in technology and applications fields. Especially, a lot of efforts for the application of RFID system in the field of logistics management have been conducted. In addition, in logistics section of steel industry a remarkable efficiency can be attained by application of the RFID system. However, in the RFID system applied for the steel industry, lots of problems were found to be solved in recognition of the tags and antennas. This paper presents the feasibility of deploying RFID in the steel industry as a tool for reduction of the production cost. An application of the steel industry to RFID-based tracking management system was proposed. The results of this paper showed that the recognition rate of material input and output was found 100 percent and secured 99 percent of detection rate in the location. In conclusion, the proposed RFID-based tracking management system was approved superior to the existing system in terms of productivity.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.25 no.3
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• pp.215-221
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• 2007

In Ubiquitous computing, RFID has been become a key technology to provide the real-time location information of users. For this purpose, many recent researches have been conducted regarding RTLS based on the RFID system. In this study, we evaluated the efficiency and feasibility of the velocity gauging system using RTLS based on the RFID system. By using this system, the velocity of mobile units were measured and the accuracy was evaluated with data obtained from DGPS. The results demonstrated that RTLS based on the RFID system would be suitable to measure with relatively low velocity information of mobile units. When RFID infrastructures are being constructed, the developed system will be a better position to increase popularity of velocity information service.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.17 no.5
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• pp.141-146
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• 2007

Barcodes have been widely used to implement automatic identification systems but there are various problems such as security weakness or distance restriction in scanning barcode signals in a barcode-based automatic identifcation systems. Recently researchers are gradually interested in radio frequency identification (RFID) and RFID systems have been applied to various fields than before. Especially one of RFID application fields, a bank system uses RFID tagged bankontes to prevent illegal transactions such as counterfeiting banknotes and money laundering. In this paper, we propose a RFID system for protecting location provacy of a banknote holder. In addition, our paper describes that a trust party can trace a counterfeit banknote holder to provide against emergencies.

• Journal of the Korea Society of Computer and Information
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• v.13 no.5
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• pp.263-272
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• 2008

The proposed system can achieve more safety of RFID system with the 2-step authentication procedures for the enhancement about the security of general RFID systems. After it has authenticated RFID tag, additionally, the proposed system extract the characteristic information in the user image for acquisition of the additional authentication information of the user with the camera. In this paper, the system which was proposed more enforce the security of the automatic entrance and exit authentication system with the cognitive characters of RFID tag and the extracted characteristic information of the user image through the camera. The RFID system which use the active tag and reader with 2.4GHz bandwidth can recognize the tag of RFID in the various output manner. Additionally, when the RFID system have errors. the characteristic information of the user image is designed to replace the RFID system as it compare with the similarity of the color, outline and input image information which was recorded to the database previously. In the experimental result, the system can acquire more exact results as compared with the single authentication system when it using RFID tag and the information of color characteristics.

• Journal of Information Management
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• v.39 no.2
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• pp.27-43
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• 2008

This paper analyzes feasibility studies regarding the structure, applications and issues of the library RFID system. In this study, the structure and principle, operation mode and middleware of library RFID system are reviewed in detail, Finally this paper analyzed and proposed the RFID applications that could be efficient to information management and user service of library and the major problems and improvements of library RFID system.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.140-144
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• 2004

Barcode system has been used for many years in labors controlling & ready mixed concrete supplement in A/E/C industry However, it was not quite successful because ot its limitations in the field. The use of RFID system is getting important in the real world. RFID system substituted for barcode system in labor controling & ready mixed concrete supplement and it showed its potentialities in other major materials supply logistics and its possibilities In progress management of 4D system. This research shows RFID system's case study and its future directions in A/E/C industry.

• Proceedings of the IEEK Conference
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• 2006.06a
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• pp.713-716
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• 2006

본 논문에서는 PXA255 ARM칩을 내장한 임베디드 RFID R/W 시스템 및 무선랜과 연동이 가능한 RFID 미들웨어 및 근태관리 소프트웨어를 개발하였다. 개발한 임베디드 형태의 RFID R/W 시스템은 PXA255 임베디드 시스템을 중심으로 13.56Mhz의 RFID R/W, 서버와 데이터 통신을 위한 무선랜 및 TFT-LCD로 구성되어 있다. 임베디드 RFID R/W 시스템은 Tag정보를 시리얼단자로 통해 입력받으면 이를 무선랜을 이용하여 서버로 데이터를 전송하고 다시 서버로부터 처리된 결과 이미지를 받아서 TFT-LCD화면에 표시한다. 임베디드 RFID R/W 미들웨어는 RFID R/W 취득한 Tag정보를 PXA255 임베디드 시스템에 전송하고, 임베디드 시스템은 클라이언트 소켓 프로그램을 작동시켜 무선랜을 통해 윈도우 서버에 접속한 후 Tag정보를 전송한다. 윈도우 서버 프로그램은 Tag정보와 적합한 데이터를 탐색한 후 이를 무선랜을 통해서 임베디드 시스템의 TFT-LCD창에 표시할 수 있는 미들웨어를 개발하였다.

• Information and Communications Magazine
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• v.24 no.8
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• pp.14-22
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• 2007

최근 UHF 대역에서 동작하는 RFID 시스템이 활발히 연구되고 있으며, 유통물류 분야를 시작으로 다양한 분야에서 활용되고 있다. 특히, 국내에서는 휴대폰과 RFID를 결합한 모바일 RFID 시스템을 도입하고 있으므로 가까운 미래에 RFID의 도입이 크게 확대될 것으로 기대되고 있다. 하지만 UHF RFID 시스템의 경우 Link Unbalance특성에 의해 주파수 간섭 등의 문제가 대두되어 전세계적으로 Dense 모드의 도입 및 기술기준 개정 움직임이 활발하게 진행되고 있다. 본 고에서는 UHF RFID 시스템에서 발생하는 주파수 간섭에 대해 알아보고, 국내외 UHF RFID Air Interface 기술의 최신 동향을 살펴보고자 한다.

• The Journal of Society for e-Business Studies
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• v.16 no.3
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• pp.113-127
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• 2011

An RFID system has been widely applied in many areas over the initial SCM application. In the literature enormous RFID applications in healthcare are documented to improve patient safety, patient/provider logistics, and the efficiency of collecting data. Based on the proposed 4-layered RFID system architecture, we introduce a case that implemented an UHF passive RFID-based tracking system in an outpatient clinic. Particularly, we propose a method to process RFID data that contains noise and missing reads. The proposed method for processing unreliable RFID data is capable to locate the tag accurately and provide additional business information. We finally conclude the paper with identifying obstacles and what is necessary to ensure system reliability.

• Journal of Korean Library and Information Science Society
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• v.39 no.4
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• pp.237-260
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• 2008

This study is designed to find out what kinds of factors influence the application of RFID system to the library. This study is followed by theoretically reviewing the RFID and the application RFID system to the library. Theoretical study models are developed by expanding the social influence, perceived risk, job relevance, support, and self-efficacy after Based on Technology Acceptance Model that provides useful theoretical foundations for setting the perceived usefulness, perceived ease of use, and intention of application to the library of RFID system as the core of a study model. The affecting factors of application of the RFID system to the library are presented by empirically studying this study model.