• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.10a
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• pp.673-675
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• 2021

Biometric technology is a next-generation information security technology that provides reliability and convenience. As a core technology in the post-corona era, then on-contact biometric access control system is capable of non-face-to-face and automated technology, and is active not only in Korea but also in overseas markets such as the United States, Europe, and the Middle East. There are precautions that must be taken to reflect requirements such as cooperation between companies and approval of the US Food and Drug Admin is tration in developing IoT-based smart device customized sensors and securing H/W systems.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.11a
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• pp.853-856
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• 2007

본 논문에서는 RFID 기술과 유비쿼터스 센서네트워크 기술이 적용된 도어락과 출입에 필요한 카드 및 무선 도어락 정보를 관리하고 모니터링 하는 출입 통제 시스템(EMS:Entrance Management System)을 개발하였다. 근거리 무선통신 표준인 Zigbee와 비접촉식 RFID 기술이 적용된 도어락 그리고 무선 도어락과 Zigbee로 통신하는 ARM코어 기반의 도어락 제어 모듈을 개발하였고 출입통제에 사용되는 응용프로램을 웹기반으로 개발함으로써 출입통제 시스템의 접근과 관리가 용의하도록 하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2020.11a
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• pp.323-326
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• 2020

본 논문은 COVID-19 유증상자를 사전에 판별해 유증상자의 시설 출입을 제한하고, 비접촉 인증 방식인 RFID, 얼굴인식을 사용해 시설 내 COVID-19 집단 감염을 예방하는 시설 관리 스마트 도어록을 제안한다. 기존 디지털 도어록 및 스마트 도어록은 가정용으로 개발되어 많은 사람이 이용하는 다중 시설에서 사용하기에 불편하다. 본 연구에서 구현한 도어록은 아두이노 센서를 통해 시설 사용자의 체온과 산소 포화도 값을 받아 사용자의 COVID-19 증상 유무를 판단한다. 유증상자의 경우 경고음을 울려 시설 출입을 사전에 제한한다. 체온과 산소포화도 측정 후 비접촉 인증 방식인 RFID, 얼굴인식을 통해 시설 출입을 통제한다. 시설 관리자는 RFID, 얼굴인식, 도어록 전용 애플리케이션을 사용해 시설에 출입할 수 있다. 본 시스템을 통해 시설 관리가 편리해지고, 증가하고 있는 스마트 빌딩 및 무인 시설에 활용할 수 있다.

• The Journal of the Korea institute of electronic communication sciences
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• v.17 no.2
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• pp.387-392
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• 2022

In addition to complying with access standards for facilities that require infection control (operating rooms, delivery rooms, intensive care units, etc.) in accordance with the 2019 Medical Care Act Enforcement Regulations, entry, exit, contact information, etc. for entry and exit, the criteria for entering and exiting special rooms of medical institutions have been revised so that records of facts are kept for one year. However, even now, the inconvenience continues due to the fact that such contents are created by hand or due to errors. For this reason, this study designed and implemented a system that provides automatic opening, closing, and accessing record storage functions for authorized users using IoT devices and UWB technology, and we expected that the convenience of the visitors and systemized access control will be possible.

• The KIPS Transactions:PartA
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• v.10A no.3
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• pp.255-260
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• 2003

In recent, as a typical example of RFID, the contactless IC card is widely used in traffic, access control system and so forth. And its use becomes a general tendency more and more because of the development of RF technology and improvement of requirement for user convenience. This paper describes the hardware module to process embedded contactless protocol for implementation contactless IC card. And the hardware module consists of analog circuits and specific digital logic circuits. This paper also describes more effective design method of contactless IC card, which method separates into analog circuit parts, digital logic circuit part, and software parts according to the role of the design parts.

• Korean Security Journal
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• no.21
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• pp.155-175
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• 2009

RFID that provide automatic identification by reading a tag attached to material through radio frequency without direct touch has some specification, such as rapid identification, long distance identification and penetration, so it is being used for distribution, transportation and safety by using the frequency of 125KHz, 134KHz, 13.56MHz, 433.92MHz, 900MHz, and 2.45GHz. Also it is one of main part of Ubiquitous that means connecting to net-work any time and any place they want. RFID is expected to be new growth industry worldwide, so Korean government think it as prospective field and promote research project and exhibition business program to linked with industry effectively. RFID could be used for access control of person and vehicle according to section and for personal certify with password. RFID can provide more confident security than magnetic card, so it could be used to prevent forgery of register card, passport and the others. Active RFID could be used for protecting operation service using it's long distance date transmission by application with positioning system. And RFID's identification and tracking function can provide effective visitor management through visitor's register, personal identification, position check and can control visitor's movement in the secure area without their approval. Also RFID can make possible of the efficient management and prevention of loss of carrying equipments and others. RFID could be applied to copying machine to manager and control it's user, copying quantity and It could provide some function such as observation of copy content, access control of user. RFID tag adhered to small storage device prevent carrying out of item using the position tracking function and control carrying-in and carrying-out of material efficiently. magnetic card and smart card have been doing good job in identification and control of person, but RFID can do above functions. RFID is very useful device but we should consider the prevention of privacy during its application.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2006.05a
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• pp.171-175
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• 2006

RFID는 전자TAG를 사물에 부착하여, 사물이 주위 상황을 인지하고 기존 IT 시스템과 실시간으로 정보교환과 처리할 수 있는 기술이다. 바코드나 Smart Card에 비하여 우수한 특성에 의해 다양한 응용이 가능하며, 향후 900MHZ 대역 제품이 현재의 13.56MHZ 대역을 대신하여 주력 제품이 될 것이라고 예상되고 있다. 현재 RFID가 도입되어 사용되는 T-Money(버스카드)와 출입통제 등 여러가지 분야에서 활용되고 있다. 하지만 RFID는 비접촉식 수신거리에 최대 장점을 가지고 있지만 반대로 수신거리의 문제로 추적이 가능하다는 문제를 가지고 있다. 이것은 사용자의 프라이버시가 될 수 있으며 위조나 변조에 대해서 매우 취약하다는 것에 문제가 있다. 이 논문에서는 보안위협과 제시된 보안기법을 보고 활용성에 대한 고찰을 보겠다.

• Journal of Practical Engineering Education
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• v.13 no.2
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• pp.301-304
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• 2021

In this study, we developed a module that can perform two functions at the same time through interworking between a personal recognition module and a heat detection module in the era of COVID-19. This can simultaneously solve the problem of compatibility of the personal recognition module that occurs in the existing system and the problem of secondary infection that can occur during congestion due to the separate implementation of heat detection. Therefore, in this study, NFC and Bluetooth motherboards were developed, and an array-type non-contact temperature sensor was applied to detect heat. The developed system is expected to be able to realize both access control of floating population and effective quarantine at the same time in public institutions or private companies that require AI automated access control. In addition, it is judged that it is possible to link the embedded programming and web programming implementation method using the module of the development system to the educational program.

• The Journal of the Convergence on Culture Technology
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• v.6 no.4
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• pp.807-812
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• 2020

In order to prevent the national wide spread of the COVID-19 virus, the government enforces to use an electronic access registration system for public facilities to effectively track and manage the spread. Initially, there was a lot of hassle to write a directory, but recently a system for creating an electronic access list using QR codes, what is called KI-Pass, is mainly used. However, the procedure for generating a QR code is somewhat cumbersome. In this paper, we propose a new electronic access registration system that does not require QR code. This system effectively controls the suspicious visitor by using a mask wearing discriminator which has been implemented using deep learning technology, and a non-contact thermometer package. In addition, by linking the beacon, a short-range wireless communication technology, and the visitor's smartphone application, basic information of the facility visitor is automatically registered to KDCA through the server. On the other hand, the user access information registered in the server is encrypted and stored, and is automatically destroyed after up to 4 weeks. This system is expected to be very effective in preventing the spread of other new infectious diseases as well as responding to the coronavirus which is recording a high spread worldwide.

• Convergence Security Journal
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• v.22 no.1
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• pp.29-38
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• 2022

The importance of prevention of epidemics is increasing due to the serious spread of infectious diseases. For prevention of epidemics, we need to focus on the non-contact industry. Therefore, in this paper, a face recognition door lock that controls access through non-contact is designed and developed. First very simple features are combined to find objects and face recognition is performed using Haar-based cascade algorithm. Then the texture of the image is binarized to find features using LBPH. An non-contact door lock system which composed of Raspberry PI 3B+ board, an ultrasonic sensor, a camera module, a motor, etc. are suggested. To verify actual performance and ascertain the impact of light sources, various experiment were conducted. As experimental results, the maximum value of the recognition rate was about 85.7%.