• Proceedings of the Korean Information Science Society Conference
• /
• 2012.06d
• /
• pp.378-380
• /
• 2012

본 논문은 사용하지 않는 공간에서 낭비되는 전기 에너지량을 감소시키기 위한 사용자 위치기반의 대기전력 제어시스템을 설계 및 구현한다. 사용자의 위치파악을 위해 주거시설의 해당 영역을 3개의 구역으로 분리하고 각 구역에 2개의 PIR센서를 설치하여 입 출입 현황 및 재실인원을 점검하며, 재실여부와 가전제품의 대기모드 여부에 따라 ZigBee 무선통신을 이용해 전력센서를 차단 혹은 해제한다. 또한, 시스템을 검증하기 위해 전력센서로 수집한 전력량을 대기전력의 차단과 해제로 비교하여 에너지 절감률을 분석한다.

• Review of KIISC
• /
• v.22 no.5
• /
• pp.35-39
• /
• 2012

철도시스템은 시설, 차량, 역사, 전기, 신호통신 등 거의 모든 분야가 통합되어 상호 유기적으로 동작함으로써 안전하고 신뢰성 있는 운행을 가능하게 한다. 특히, 철도에 처음으로 컴퓨터 시스템을 도입한 열차운행제어 설비인 관제시스템은 선구를 운행하는 모든 열차에 대하여 중앙에서 원격 감시 및 제어를 수행함과 동시에 열차운행에 관련된 모든 정보를 취합하고 이를 각 분야별로 전송하여 열차 운행의 정시성을 보장하는 중요한 설비이다. 따라서, 관제시스템은 열차운전 통제 및 감시의 일관성, 효율성, 적시성을 기하여 열차의 안전운행 확보와 지연을 최소화하고 있다. 이와 같이 열차운행의 중요설비인 관제시스템은 국가 보안시설로 평상시는 일반인의 출입이 금지될 뿐만 아니라 시스템적으로 외부로부터의 침입방지 및 보안 대책은 무엇보다도 중요한 현안이므로 관제시스템에 대한 보안 위협을 분석하고 이에 대한 보안대책 및 대응방안 등에 대하여 논의하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2005.11a
• /
• pp.1425-1428
• /
• 2005

유비쿼터스 컴퓨팅의 일환으로 RFID를 사용한 많은 시스템이 개발되고 있는 시점에서 물류관리에 RFID칩이 상용화될 것을 예측하며 그 응용으로 창고관리 시스템을 개발한다. 지방 중소업체의 경우 소규모 창고관리에도 비용과 효과 면에서 인력난을 격고 있는 상황에서 자동화 창고관리 시스템의 필요성이 절실하다. 창고관리의 자동화 방법으로 유비쿼터스 요소 중 상황인식 요소를 추가하여 시스템을 설계 및 구현한다. RFID리더기를 제어하는 클라이언트를 구성하고 서버에 DBMS시스템을 구축, WEB을 통하여 사용자 레벨에 따른 창고관리 시스템을 제어하도록 구현한다. DB의 정보를 기초로 하여 상황추출기를 통한 물리적 환경상황과 사용자-컴퓨터 상호작용 이력상황 등을 서비스한다. 결과적 창고관리 시스템의 자동화를 구현하여 재고수량의 간단한 파악, 자재 반 출입의 책임소재가 개선되었다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2015.10a
• /
• pp.497-499
• /
• 2015

According to the rapid progress of the altitude information society and various sensor technologies, The role of information and communication systems became important during social activities. In this paper, It is measured access and availability alongside parking and availability using an ultrasonic sensor and a pressure sensor. And the measuring data is sent to the controller by using the PLC (Power Line Communication). And it is implementing the parking management system made secure by controlling the LED and LCD with the received data.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2007.11a
• /
• pp.857-859
• /
• 2007

기존의 보안용 감시 녹화 시스템은 유선, Ethernet, WIFI 기술을 이용해서 서버 녹화 장비에 기록하는 방식을 많이 사용하고 있다. 본 논문에서는 ZigBee 무선 통신과 센서 네트워크 기술을 기반으로 보안 감시 녹화 시스템을 설계하고 프로토타입을 구현하였다. 녹화 시스템은 사람의 출입이 있을 때만 동작하도록 인체 감지 센서와 무선 ZigBee 모듈이 탑재된 소형 모트, 감시 카메라, 녹화 및 웹을 통한 제어 기능이 가능하도록 웹서버가 포팅된 전용 임베디드 보드로 구성되고, 소프트웨어로는 카메라를 제어하는 기능, 녹화된 비디오를 관리하는 기능을 갖는 프로그램을 개발하였다.

• Convergence Security Journal
• /
• v.18 no.5_1
• /
• pp.93-98
• /
• 2018

Korea Hydro & Nuclear Power Co., Ltd., Korea Electric Power Corporation, and Korea South-East Power Corporation are major infrastructure facilities of power supplying countries. If a malicious hacking attack occurs, the damage is beyond the imagination. In fact, Korea Hydro & Nuclear Power has been subjected to a hacking attack, causing internal information to leak and causing social big problems. In this paper, we propose a strategy and countermeasures for stabilization of various power generation control systems by analyzing the environment and the current status of power generation control system for convergence security research, which is becoming a hot issue. We propose a method to normalize and integrate data types from various physical security systems (facilities), IT security systems, access control systems, to control the whole system through convergence authentication, and to detect risks through fusion control.

• The Korean Journal of Archival Studies
• /
• no.18
• /
• pp.179-220
• /
• 2008

Under the physical records management system, both the records and users could be controlled and secured by closing the door of Archives or using permitted records which is used only approved users. According to the electronic records management system and the concept of service on the basis of users, we have to give up the classical manner. As an alternative, we have to consider the electronic access control system. To accomplish this purpose, functional requirements of ERMS that is issued by UK, EU, U.S and Australia must be compared and analyzed. On the basis of U.K ERMS which is more detailed, 'common access control functional requirements' are arranged. As the access control functional requirements is applied in the records classification scheme, we could find out how the access control is executed in ERMS.

• Journal of Digital Policy
• /
• v.1 no.2
• /
• pp.1-8
• /
• 2022

In case of a dangerous situation, the roof, which serves as an emergency exit, must be open in case of fire according to the Fire Act. However, when the roof door is opened, it has become a place of various incidents and accidents such as illegal entry, crime, and suicide. As a result, it is a reality to close the roof door in terms of facility management to prevent crime, various incidents, and accidents. Accordingly, the government is pushing to legislate regulations on housing construction standards, etc. that mandate the installation of electronic automatic opening and closing devices on rooftop doors. Therefore, in this paper, an intelligent emergency door opening/closing device system is proposed. To this end, an intelligent emergency door opening and closing system was developed by linking wired and wireless access counting and AI image analysis. Finally, it is possible to build a wireless communication-based integrated management platform that provides remote control and history management in a centralized method of device status real-time monitoring and event alarm.

• 전자공학회논문지 IE
• /
• v.45 no.4
• /
• pp.19-26
• /
• 2008

The purpose of this paper is to build a system applicable to floriculture, hydroponics and vinyl house agriculture by a development of remote control equipments using programmable logic controllers (PLC). Remote factory automation and home automation systems have been developed and used due to the rapid progress in the fields of information and automation; however, the systems are so expensive that their applications have not been feasible in agriculture. So we have developed simple modules for PLC to replace the expensive conventional systems. The developed systems have potentials to be applied to automation systems in agricultural industry. Technologies for motor control, microprocessor, PLC programming and wireless interface are developed and implemented in the form of application modules of our systems, and our system is applicable to the remote form automation of floriculture and hydroponics.

• Journal of Digital Convergence
• /
• v.19 no.2
• /
• pp.245-251
• /
• 2021

As the trend of steadily increasing the number of single or double household, there is a growing demand to see who is the outsider visiting the home during the free time. Various models of face recognition technology have been proposed through many studies, and Harr Cascade of OpenCV and Hog of Dlib are representative open source models. Among the two modes, Dlib's Hog has strengths in front of the indoor and at a limited distance, which is the focus of this study. In this paper, a face recognition visitor access system based on Dlib was designed and implemented. The whole system consists of a front module, a server module, and a mobile module, and in detail, it includes face registration, face recognition, real-time visitor verification and remote control, and video storage functions. The Precision, Specificity, and Accuracy according to the change of the distance threshold value were calculated using the error matrix with the photos published on the Internet, and compared with the results of previous studies. As a result of the experiment, it was confirmed that the implemented system was operating normally, and the result was confirmed to be similar to that reported by Dlib.