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센서 기반의 농산물 환경 모니터링 및 품질측정에 관한 연구
곽윤식(Yoonsik Kwak),이정용(Jeongyong Lee),조미애(Miae Cho),김형준(Hyungjoon Kim),신희종(Heejong Shin),송석일(Seokil Song) 한국정보기술학회 2013 한국정보기술학회논문지 Vol.11 No.3
In this paper, we study how the physical environment (temperature, humidity) during the distribution of farm products effect the quality and shelf life of farm products. Subsequently, we monitor the distribution environment of farm products with sensor network. Then, based on the monitoring results, we predict the quality of farm products. Finally, we analyze how the distribution & store environment effects the quality of farm products. Also, through the analysis we study a predication method for the quality of farm products based on the monitoring results of sensor network. As the results for apples, we can obtain the shelf life limitations period, weight reduction rate, and prediction equation based on the quality factors-temperature, humidity. As the experimental results, we can obtain the merchantability and optimal distribution time for agro-foods.
분산 네트워크 환경에서 스토리지 디바이스에 대한 자원관리시스템 설계
곽윤식(YoonSik Kwak),구본근(Bonkoon Goo),오일노(Ino Oh),황정연(JungYeon Hwang),정승국(SeungKook Cheong) 한국정보기술학회 2009 한국정보기술학회논문지 Vol.7 No.6
It is necessary for the resource management system to manage for the resource in distributed networking environment. Because of increasing the complexity of vast computer system and business environment, needs of RMS is increasing. Based on the common information model to use of objected oriented technology, though analysis of the core model and common model(device model and system model), we intend to model and designed the SRM(storage resource management) for NGS storage system.
곽윤식(YoonSik Kwak),박상문(Sangmoon Park),길기정(Kijung Gil),곽동호(Dongho Kwak),배석구(Seokkoo Bae) 한국정보기술학회 2010 Proceedings of KIIT Conference Vol.2010 No.-
본 논문은 무선 센서네트워크 환경에서 온도 및 습도 데이터의 획득을 위한 장치 설계에 관한 것이다. 유비쿼터스 기술 및 컴퓨터 기술의 발전으로 그 활용 분야가 급속하게 확대되고 있는 센서네트워크 기술의 데이터 입력 장치인 센서노드, 즉 센서모듈의 설계에 관한 것이다. 데이터 입력 장치로 온도 및 습도 데이터의 수집 및 전송기능을 수행 할 수 있는 8비트 마이크로프로세서와 온도 및 습도 측정 장치가 결합된 모듈로서 기존의 상용화 시스템이 갖고 있는 기능을 사용 할 수 있을 뿐만 아니라 저 비용의 기능 구현 및 사용자 기반 센서설계의 용이성을 확보 할 수 있었다. According to the development of ubiquitous and computer techniques, the application fields of sensor network have been enlarged. We present the design and implementation of sensor node which is the most important component of sensor network techniques in this paper. The proposed sensor node is implemented with 8-bit microprocessor, and temperature and humidity sensing device to gather temperature and humidity data in real world. It achieves low production cost and user convenience, and also has the feature os existing commercial sensor node. Though our experiments, we show that deviation of temperature and humidity are 5°Cand 23.2% respectively, and the proposed sensor node is reliable in real applications.
곽윤식(YoonSik Kwak),구본근(Bonkoon Goo),고대식(DaeSik Koo),정승국(SeungKook Cheong),황정연(JungYeon Hwang) 한국정보기술학회 2009 Proceedings of KIIT Conference Vol.2009 No.-
컴퓨터 기술의 비약적인 발전과 더불어 수 많은 컴퓨터 시스템자원이 연결되어 있는 컴퓨팅 환경에서 이를 효과적으로 관리하기 위한 시스템자원관리 기술에 대한 연구가 활발하게 진행되고 있다. 이같은 상황에서 시스템자원의 관리를 위한 표준화 기술을 제공하고 있는 DMTF의 표준화 기술인 표준화 공통정보모델에서 관리시스템 구축에 요구되는 여러 가지 공통모델 중, 응용프로그램을 위한 모델 및 디바이스 모델에 대한 분석을 통하여 관리시스템 구축을 위한 방안을 도출한다. By developing of the computer technology, it has been studying the management of the system resource to manage effectively in the computing environment interconnecting of a munber of computer system. In the CIM(Common Information Management) provided by DMTF, to implement management system we analyzed the the CIM Application model designed to the clients and The CIM Device Model designed to the devices. As a result of the analysis, we propose the method which implement management system.
전해 산성수 및 차량 번호판 인식을 이용한 방재 관제 시스템 구현에 관한 연구
곽윤식(Yoonsik Kwak),이정재(Jungjae Lee),이윤수(Yunsou Lee),김태환(Taehwan Kim),우종걸(Jonggul Woo),조남형(Namhyung Joo),신희종(Heejong Shin),송석일(Seokil Song) 한국정보기술학회 2012 한국정보기술학회논문지 Vol.10 No.9
In this paper, we present that it is about the monitoring system for disaster prevention using an antiseptic water production device and a car license plate recognition system. The antiseptic water production devices consist of a storage, spray, connection part, and an antiseptic water unit. The car license plate recognition systems consist of an automatic recognition system for cars and license plate recognition system. Using the above described components, we could implement the monitoring system for disaster prevention that consist of realtime monitoring, objects, configuration, user, login/out management part. As the results, we could prove the function of disinfection for an antiseptic water and monitor the information about cars to be used for disinfection. Simultaneously we could get the information about cars and drivers. Also, using the functionality of implemented systems integration management, we could obtain usability and efficiency in agriculture to be characteristics.
IT기반의 축사 관리 시스템을 위한 통신 프로토콜 설계
곽동호(Dongho Kwak),김태환(Taehwan Kim),강안나(Anna Kang),박상문(Sangmoon Park),김민섭(Minseop Kim),길기정(Khil Ki-jeong),최종남(Jongnam Choi),송석일(SeokIl Song),곽윤식(Yoonsik Kwak) 한국정보기술학회 2011 한국정보기술학회논문지 Vol.9 No.7
In this paper, we develop remote control and monitoring system to optimize the environment factors of piggery using wireless sensor network. Our developed system consists of wireless sensor nodes sensing temperature and humidity, sink node gathering data from sensor nodes and controller to activate environment control system whenever th data from sensors is out of optimal range. Also, the developed system consists of a server to receive data from the controller and send new configuration to the controller and a client to present the information of piggery to users.
조경원(Cho KyungWon),곽윤식(YoonSik Kwak) 한국정보기술학회 2003 Proceedings of KIIT Conference Vol.2003 No.-
본 논문은 CATV 망 관련 장치 구현에 관한 것으로 기존의 수동형 장치의 비효율성을 제거하기 위해 자동화된 집중식 Headend 시스템 및 분배장치를 구현하였다. 이를 위해 기존의 주파수대역 중에서 비디오 신호의 송신에 사용되지 않은 대역을 확보하고 이를 제어신호의 송ㆍ수신이 이루어지는 제어대역으로 사용하는 송수신 시스템 및 자동화 분배기를 설계하였으며, 상ㆍ하향통신 및 하향통신방식이 공유된 형태로 RS-232를 이용한 9600bps의 CATV 망을 위한 통합관리 시스템을 구현하였다. This study is about the development of a system related to the CATV network. It intends to develop an automatically centralized Headend system and a distributive system to remove the ineffectiveness of the established manual system. To achieve this goal, we took a part of bandwidth, which is not used for the transmission of video signals in the established frequency bandwidth, and used it for the transmission and receiver of controlling signals. By this way we could design a system of transmission and receiver and a automatic distributive system. We developed an information management system for the 9600bps CATV using RS-232 of forward/backward communication and backward communication.