• Journal of rehabilitation welfare engineering & assistive technology
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• v.8 no.1
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• pp.67-72
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• 2014

In this paper, we proposed A Study on Construction of Infrastructure for Handicapped Parking Areas Using RFID. This paper is Construction of the Handicapped Parking Areas infrastructure Using RFID with 900MHz band, and researched the optimal position of the tag attached on the vehicle and the location of RFID reader in order to raise the efficiency of RFID reader and the recognition rate by the handicapped vehicle. The result of research is shown the optimal position of RFID reader establishment when the height of RFID reader is 170cm in height and the angle of $80^{\circ}$ with the ground when the vehicle traveling direction of the antenna and the RFID reader when the surface and the angle of $90^{\circ}$ showed the best position RFID readers installed. Parking spaces for the disabled in accordance with these results the RFID readers installed and it works in conjunction with enforcement camera car tagged crackdown on vehicles and other general management, the system is built to allow handicapped parking spaces that meet the intent of the original purpose being used as expected to contribute significantly.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2007.02a
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• pp.93-96
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• 2007

RFID 시스템은 무선통신기술을 사용하여 직접 접촉하지 않고 RFID 태그 정보를 식별하는 자동식별기술을 말한다. RFID 시스템의 장점 때문에 바코드 대체 기술로서 주목을 받고 있다. 최근에, RFID시스템은 모바일 단말기 안에 내장된 리더를 사용하여 사용자에게 유용한 정보를 제공하는 모바일 시스템으로 확대대고 있다. 모바일 RFID 시스템은 모바일 리더를 사용하여 물품의 정보를 얻는다. 그 다음 얻은 정보를 사용하여 무선이동통신 네트워크에서 사용자에게 다양한 부가 서비스를 제공한다. 모바일 RFID 시스템은 RFID 리더에 이동성을 결합했을 뿐만 아니라, 언제 어디에서나 실생활에 밀접한 물품에 대한 정보를 활용할 수 있다는 점에서 많은 주목을 받고 있다. 그러나 모바일 RFID 시스템은 정보누출, 추적성, 위조 등과 같은 RFID 시스템의 위협에 취약할 뿐만 아니라 모바일 리더의 이동성에 의해 사용자의 프라이버시가 쉽게 침해된다. 본 논문에서는 기존에 제안된 모바일 RFID 시스템에 관하여 살펴보고 모바일 RFID 시스템에서의 발생하는 추가적인 문제점을 지적한 후에 이에 대한 해결 방안을 제시한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.3
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• pp.1367-1371
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• 2013

The RFID market seems to grow mostly in the logistics and distribution areas. The areas and small sized work places requires multi-steps based system. In the environment, the performance of RFID READER is the most important factor. If RFID READER fails to operate frequency well, it will be difficult to apply RFID technology to work places and manage multi-readers used in a narrow place. This work reveals that making possible multiple readers environment and reporting the state of the entire upgrade are of significant in terms of the system's functions. This thesis studied RFID reader platform with self-diagnosis function.

• The Journal of the Korea Contents Association
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• v.9 no.11
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• pp.90-99
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• 2009

This paper presents the implementation of RFID EPC global network educational system based on using 900MHz air interface between the reader and the active tag. The software of reader and the active tag is developed on embedded environment, and the software of PC controlling the reader is based on window OS operated as the server. The ATmega128 VLSI chip is used for the processor of the reader and the active tag. As the development environment, AVR compiler is used for the reader and the active tag of which the programming language is C. The visual C++language of the visual studio on the PC activated as the server is used for development language. Main functions of this system are to control tag containing EPC global Data by PC through the reader, to obtain information of tag through the internet and to read/write data on tag memory. Finally the data written from the active tag's memory is sent to the PC via the reader as "read" operation and compare the received data with one already sent to the tag. Software implementation of 900MHz EPC global RFID educational system is done on the basis of these functions.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.4
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• pp.25-31
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• 2009

In this paper, the implementation of a production control system based on RFID has been studied in order to obtain an exact Cost Center data such as the name of workers included a process of work and a time period to finish the process. The cost center of a worker will be correctly obtained by checking the work time using RFID tag data and by transmitting the data to a server of ERP or POP system. And also warming up time, cleaning time, power failure, and out of order sign will be checked and calculated using the data stored in RFID tags attached in workers and machine facilities. Therefore, exact Cost Center data will be obtained by the production control system with touch screens entering the data according to the situation in real time.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.10a
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• pp.954-955
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• 2012

Recently as increasing the use of mobile communication devices the use of mobile readers for recognition tag attached to objects is also increasing. Accordingly, meantime, that gives rise to the vulnerability of RFID systems between reader and tag security issues, as well as security issues between the reader and the back-end server will occur. In this paper between the reader and the back-end server to security vulnerabilities efficient authentication protocol using the hash function is proposed.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.15 no.5
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• pp.25-33
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• 2005

We propose a method to protect the tag's information from illegal reader in RFID system. In this method, a special tag called ownership tag makes intentionally collisions during singulation. By the forced collision of an ownership tag a reader can obtain the information of ordinary tags. Whereas a reader can not find my information on tag's ID without the ownership tag.

• 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 IEEK Conference
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• 2005.11a
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• pp.1113-1116
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• 2005

최근들어 Radio Frequency Identification(RFID) 태그가 다수의 상품에 부착되고 여러 분야에 적용되기 시작했지만, 편리성이나 비용문제로 인해 인증과 암호화 같은 보안기능은 적용되지 않고있다. 보안 기능이 없는 RFID 시스템은 개인정보 노출, 불법 리더의 접근, 위조 태그의 남용과 같은 심각한 부작용을 초래하지만, 태그 자원의 제약으로 인해 보안기능을 적용하기가 쉽지않다. 현재 여러 기술을 따르는 RFID 시스템 중 EPCglobal 의 EPC Class 1 Generation 2(C1G2) 는 산업계의 여러 분야에서 특히, supply-chain 모델에서 사실상 국제표준으로 여겨진다. 본 논문에서는, RFID 보안 프로토콜 중 EPC C1G2 메커니즘의 Inventory 과정에서 태그가 리더를 인증하는 기법을 제안한다. C1G2 시스템에서는 인증되지 않은 리더의 태그 액세스가 가능한데, 이는 태그의 리더 인증으로서 차단될 수 있다. 또한, EPC C1G2 태그-리더 간의 상호인증 기법을 제안한다. 이 과정에서 태그 ID 는 노출되지 않고 전송되며, 태그 인증을 통해 태그 위변조를 방지할 수도 있다. 제안 메커니즘은 태그를 식별하는 절차에서 인증을 위해 프로토콜 패스 수의 증가가 없다. 다만 리더와 태그에서 Inventory 과정의 ACK command 와 태그의 reply 구현에 약간의 수정을 필요로 한다.

• Journal of KIISE:Computing Practices and Letters
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• v.14 no.9
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• pp.884-891
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• 2008

As the scale of RFID systems grows, decrease in recognition rate of collision between readers is becoming an issue. Time division technique may solve the problem, but this will cause total recognition time to increase. This issue must be solved for real-time inventory control. In this study, total recognition time was improved by placing ARCM in RFID systems. ARCM maintains short recognition time through efficient utilization of frequency channel and manages RFID systems to recognize the tag by avoiding interference. As the result of using ARCM, saving maximum 20% of time was possible.