• Proceedings of the Korean Information Science Society Conference
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• 2006.06d
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• pp.100-102
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• 2006

본 논문에서는 분산응용 개발 및 관리에 대한 사용자의 요구사항을 만족시킬 수 있는 분산서비스 맞춤형 소프트웨어 아키텍쳐인 분산객체그룹 프레임워크를 제안한다. 분산객체그룹은 응용을 구성하는 분산객체들을 하나의 논리적인 그룹으로 관리하며, 분산객체그룹 프레임워크는 분산응용의 개발자 관점에서 응용의 범위를 효율적으로 정의할 수 있을 뿐 아니라, 프레임워크의 지원 분산서비스를 응용과 독립적으로 적용할 수 있다. 프레임워크의 컴포넌트로 그룹관리자와 보안모듈, 모바일프락시, 컨텍스트제공자 및 DPD-Tool을 포함하며, 실시간 서비스를 위한 실시간관리자, 스케쥴러를 갖는다. 본 프레임워크는 분산서비스 지원 컴포넌트들의 상호작용으로 적응성(adaptability), 확장성(scalability), 보안성(security), 이동성(mobility) 및 신뢰성(reliability)을 제공하며, 분산응용을 개발 시 필요한 분산서비스를 모듈 단위로 선택하여 실제 응용 수행 시 선택한 분산서비스를 통해 그 수행성이 보장되도록 한다.

• Journal of Korea Society of Industrial Information Systems
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• v.29 no.1
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• pp.77-89
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• 2024

This paper presents an unmanned store management system that can provide inventory management and theft prevention for displayed products using a small camera that can monitor the shelves of sold products in small and medium-sized stores. This system is a service solution that integrates object recognition, real-time communication, security management, access management, and mobile authentication. The proposed system uses a custom YOLOv5-x model to recognize objects on the display, measure quantities in real time, and support real-time data communication with servers through Raspberry Pie. In addition, the number of objects in the database and the object recognition results are compared to detect suspected theft situations and provide burial images at the time of theft. The proposed unmanned store solution is expected to improve the efficiency of small and medium-sized unmanned store operations and contribute to responding to theft.

• Information and Communications Magazine
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• v.32 no.5
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• pp.36-41
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• 2015

스마트 팩토리는 시시각각 변화하는 생산현장의 생산정보 4M1E(Man, Machine, Material, Method, Energy)생산 자원을 실시간으로 통합하여 생산 관리를 무대기시간, 무재고, 무고장, 무불량일 발생할 수 있는 핵심성과지표(KPI: Key Performance Indication)를 통하여 생산현장을 연속개선을 추진하는 것이 핵심이다. 본고에서는 스마트 제조업에 필요한 IT융합 국제표준화 동향으로 사이버 보안기술, Object Process Methodology기반 생산자원 통합기술, 실시간 이벤트기반 구조화 기술, 공통 생산정보화 플랫폼 서비스기술, 생산정보화 표준기능 및 국제표준동향과 한국형 중소제조업 스마트공장 적용 참조 모델에 대하여 알아본다.

• The Magazine of the IEIE
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• v.43 no.6
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• pp.31-37
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• 2016

스마트 팩토리는 시시각각 변화하는 생산현장의 생산정보 4M1E(Man, Machine, Material, Method, Energy)생산자원을 실시간으로 통합하여 생산 관리를 무대기시간, 무재고, 무고장, 무불량일 발생할 수 있는 핵심성과지표 (KPI: Key Performance Indication)를 통하여 생산현장을 연속개선을 추진하는 것이 핵심이다. 본고에서는 스마트 제조업에 필요한 IT융합 국제표준화 동향으로 사이버 보안기술, Object Process Methodology기반 생산자원 통합기술, 실시간 이벤트기반 구조화 기술, 공통 생산정보화 플랫폼 서비스기술, 생산정보화 표준기능 및 국제표준동향과 한국형 중소제조업 스마트공장 적용 참조 모델에 대하여 알아본다.

• Journal of Satellite, Information and Communications
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• v.10 no.4
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• pp.83-86
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• 2015

In this paper, we propose a real-tim measurement management system UI development linked the Water treatment facilities broadband Convergence Network. The sensor and the image data received by the server develop a program to interact with Web through water treatment facilities broadband convergence network. So, Separately develop UI capable of independently operating. Building a web server for remote monitoring of the transmission sensor and the image data. And Monitoring and control is possible the sensor data and image data through the Web-based UI. We can grasp the current state such as measurement time, concentration and depth of interface through the proposed real-time measurement management system UI development liked the water treatment facilities broadband convergence network. So, we can check in whether the normal operation of water treatment facilities and whether the casualties such as fire and security. As well as real time to see the information at a glance due to UI development can be raal-time monitoring of real-time measurement management system.

• Journal of Korea Spatial Information System Society
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• v.11 no.3
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• pp.31-39
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• 2009

Requirement level regarding processing and managing real-time datastream in an ubiquitous environment is increased. Especially, due to the unbounded, high frequency and real-time characteristics of datastream, development of specialized stroge manager for DSMS is necessary to process such datastream. Existing DSMS, e.g. Coral8, can support datastream processing but it is not scalable and cannot perform well when handling large-volume real-time datastream, e.g. 100 thousand over per second. In the case of Oracle10g, which is generally used in related field, it supports storing and management processing. However, it does not support real-time datastream processing. In this paper, we propose specialized storage manager of DSMS for real-time compressed storing on semiconductor or LCD production facility of Samsung electronics, Hynix and HP. Hynix and HP. This paper describes the proposed system architecture and major components and show better performance of the proposed system compared with similar systems in the experiment section.

• Proceedings of the Korea Multimedia Society Conference
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• 2000.11a
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• pp.506-509
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• 2000

현대 사회는 컴퓨터와 인터넷을 이용한 정보 교환이 필수적이다. 이러한 정보 교환은 기본적으로 해킹 및 불법적인 접근으로 보호되어야 하며, 이러한 불법적인 접근으로부터 정보를 보호하기 위해 정보보안 제품들이 많이 개발되어 있다. 본 연구에서는 기존의 개발된 보안 제품들이 UNIX 혹은 Windows 계열에서 개발되었다 할지라도 TCP/IP를 기반으로 하는 제품들에 대해서 내부적으로 전송되는 데이터들에 대해 보안 기능 및 무결성 기능을 실시간 및 자동으로 탐지하는 도구를 개발하는데 있다. 기존의 보안 제품들은 응용 계층 및 IP 계층에서 인증 및 보안 기능을 수행하는 제품들이 많이 개발되었는데, 본 연구에서는 응용계층과 IP 계층 모두에서 개발된 보안 제품들에 대해 자동으로 탐지하는 모듈을 Linux 환경에서 구현하였다. 그리고 관리자의 편리한 검증을 위해 다양한 인터페이스 환경을 제공하는 모듈을 추가하였다.

• Convergence Security Journal
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• v.10 no.3
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• pp.29-41
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• 2010

Survelliance and Reconnaissance Sensor Network(SRSN) which can collect various tactical information within battlefield in real time plays an important role in NCW environment, of sensor to shooter architecture. However, due to the resource-limited characteristics of sensor nodes and the intrinsic attributes of sensor network such as wireless communication, the SRSN may be vulnerable to various attacks compared to traditional networks. Therefore, in this paper, we propose a new group key management scheme to guarantee confidentiality, integrity, availability, and authentication during the operation of the SRSN. Proposed scheme generates and distributes the group key based on the topological characteristic of the SRSN and the probabilistic key sharing. The communication cost for distributing the group key is O(logn).

• Journal of Korea Society of Industrial Information Systems
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• v.29 no.4
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• pp.43-54
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• 2024

This study presented a cybersecurity risk management system in a smart factory environment. A smart factory refers to a factory that optimizes the production system and increases efficiency. However, this digitized environment is vulnerable to cyber attacks, and manufacturing companies can suffer serious damage from disruptions in production systems or information leaks. Therefore, a systematic approach to effectively managing cyber security risks is essential in smart factories. In this study, a continuous security risk management system for each stage of the smart factory was proposed along with business process-based security risk assessment. These studies will help to further improve cybersecurity risk management in smart factories. It will also play an important role in ensuring that smart factories operate safely and efficiently.

• The KIPS Transactions:PartC
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• v.10C no.2
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• pp.145-154
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• 2003

Current security efforts provided in such as firewall or IDS (intrusion detection system) of the network level suffer from many vulnerabilities in internal computing servers. Thus the necessity of secure OS is especially crucial in today's computing environment. This paper identifies secure OS requirements, analyzes tile research trends for secure Linux in terms of security kernel, and provides the descriptions of the multi-level security(MLS) Linux kernel which we have implemented. This security kernel-based Linux meets the minimum requirements for TCSEC Bl class as well providing anti-hacking, real-time audit trailing, restricting of root privileges, and enterprise suity management functions.