• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.467-468
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• 2014

본 논문에서는 컴퓨터 보안 강화를 위해 WOL(Wake On LAN) 기능을 출입문 제어시스템에 탑재하여 RFID 카드를 소지한 사용자만이 컴퓨터에 일차적으로 접근 가능한 전략을 제안한다. 이러한 전략은 컴퓨터 사용을 위해 단순히 비밀번호를 이용해 로그온 하는 기존의 방법과 비교해 사전에 자신의 RFID 카드를 이용한 물리보안 인증 단계를 전처리 과정으로 포함함으로써 컴퓨터 보안이 한층 강화되었다고 볼 수 있다. 뿐만 아니라 출입문 제어시스템에 탑재된 WOL 기능에 의해 사용자가 자신의 컴퓨터에 실질적으로 접근하기 이전에 일부 부팅과정에 완료됨에 따라 사용자가 컴퓨터 부팅 과정동안 기다려야하는 대기시간을 줄임으로써 업무효율을 기대할 수 있다. 본 논문에서는 RFID 리더기와 라즈베리파이(Rasqberry Pi)사용해 WOL 기능을 탑재한 출입문 제어시스템을 직접 구현하고 실제 컴퓨팅 환경을 구현해 실험을 실시하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.05a
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• pp.441-443
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• 2017

Modern people who have been busy in their busy daily life tend to reduce outside activities and activities in their homes are increasing. As a result, the frequency of use of electronic products such as computers is increasing and products are being developed. However, the remaining inconvenience of using a computer is that you have to sit in front of a computer when you are tired and want to watch movies, browse the internet and do simple tasks. This is why the penetration rate of smartphones is increasing. In order to solve the inconvenience of such a computer, we have designed a program that enables Wake on LAN function, which is a function for booting a remote shutdown computer, and mouse control and keyboard control by communicating with a smartphone application and a computer.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.14 no.3
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• pp.1-6
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• 2014

Companies almost don't use an integrated control system using expensive network system in multimedia like TV and DID, despite IP-Broadcasting and communication equipment have expanded rapidly. The proposed integrated TCU(terminal control unit) is a control device that supports TV power On/Off check and remote control, power control reservation function, TV channel change, a variety of interface supports of input/output AC power & Lan port, RS-232C and IR using existing IP network after there is installed the Wake-on -Lan in the set-top box. The TCU can control and monitor 24 hours unlike existing low-cost control system RF method. In existing control equipment markets without expandability and low price, the TCU development including 24 hours monitoring and automatic control functions is expected to secure a wide range of companies.

• Journal of Digital Contents Society
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• v.10 no.3
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• pp.447-452
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• 2009

In information age, sharing about the information and various techniques to control other computers which are connected in network started to appear. One of these techniques is remote control system. However, conventional remote control systems have had a lot of inconvenience to use because of limited functions. For example, it always has to connect to the electricity supply to operate the server program. Also, one-to-one remote control is only possible by one's permission. In order to solve the problems of the conventional remote control system's limited functions, this paper implements the system which applies the WOL(Wake On Lan) function to be possible remote power control to multi client computers by one server computer connected to a lot of client computers not one-to-one.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.16 no.5
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• pp.1735-1754
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• 2022

The reliability and performance of WiFi need optimization because of the rising number of WiFi users day by day. A highlighted point is saving power while transmitting and receiving packets using WiFi devices. Wake-on-Wlan (WoW) is also implemented to improve energy consumption, but it also needs betterment. This paper will introduce universal ideas to transmit and receive packets using low-power technology like Bluetooth or BLE (Bluetooth low energy). While looking for power-saving ways in this research, WiFi connection and maintenance also take care using lesser power-consuming technology. Identifying different use-cases where low power technology can help save energy and maintain 802.11 connection is part of the research. In addition, the proposed method discuss energy saving with unicast and broadcast/multicast data. Calculation of power-saving and comparison with standalone WiFi usage clearly shows the effectiveness of the proposed method.

• Structural Engineering and Mechanics
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• v.49 no.4
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• pp.523-536
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• 2014

Before incorporating the earthquake-resistance design in design standard (1988) in South Korea, most of existing residential buildings were built without having lateral resistance capacity in addition to their structural peculiarity, such as exterior stair ways, exterior elevator room. For these reasons, the demands on retrofitting research for existing buildings arise recently and many retrofitting methods are proposed. These tasks are important to reduce the enormous economic loss and environmental issues. As the main purpose, this study was intended to examine the performance improvement in terms of ductility and strength in the wake of retrofitting and to suggest retrofitting details.

• Korean Journal of Radiology
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• v.21 no.1
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• pp.117-117
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• 2020