• Communications for Statistical Applications and Methods
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• 제8권2호
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• pp.507-514
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• 2001

In recent years, the development and the embodiment of information analysis system has been sprightly carried out in several fields of study. In this study, as and extension of these studies, we develop a system for multivariate analysis which might be widely used in social and natural sciences. This multivariate analysis system is developed by using multivariate analysis procedures in SAS/STAT software. Also, the system supply users with he environment of GUI(Graphical User Interface), which is constructed with AF(application frame) and SCL(screen control language) of SAS software, in order to help users to use the system with easy.

• Journal of Multimedia Information System
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• 제2권2호
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• pp.241-248
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• 2015

The safety-critical software in healthcare systems needs more and more perceptive excess among human observation and computer support. It is a challenging conversion that we are fronting in confirming security in healthcare systems. Held in the center are the patients-the most important receivers of care. Patient injuries and fatalities connected to health information technologies commonly show up in the news, contrasted with tales of how health experts are being provided financial motivation to approve the products that may be generating damage. Those events are unbelievable and terrifying, however they emphasize on a crucial issue and understanding that we have to be more careful for the safety and protection of our patients.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2022년도 추계학술발표대회
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• pp.764-766
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• 2022

본 시스템은 스마트폰에서 사용자의 음성을 이용해 집 안이나 밖에서 IoT 단말을 효율적으로 제어할 수 있는 시스템으로, 인식된 음성에 맞춰 가전제품 기동, 조명 조절 등 IoT 단말을 컨트롤한다. 사용자의 음성은 Json 형태의 명령으로 변환되어 에지 컴퓨팅 기술을 통해 저사양 단말이 고사양 단말의 유휴자원을 활용하며 명령에 따른 IoT 단말 컨트롤이 진행된다. 이러한 아키텍처는 IoT 단말 데이터를 외부에 노출하지 않고 컴퓨팅 자원을 효율적으로 운용할 수 있는 시스템을 제공한다.

• 대한원격탐사학회지
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• 제18권3호
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• pp.147-153
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• 2002

The real-time reception and recording of down-link mission data from a satellite requires the highest reliability because the data lost in receiving process cannot be recovered. The data receiving and recording system has moved from a set of dedicated hardware and software components to commercial-off-the-shelf (COTS) components in order to reduce the system cost as well as to upgrade the system easily for handling other satellite data. The use of COTS hardware and middleware components prevents the system developer from correcting or modifying the internal operations of the COTS components, and hence, instant performance degradation of the COTS components which affects the reliable data acquisition must be covered by a software algorithm. This paper introduces the instant performance problem of a COTS data recording device which leads to the data loss in the real-time data reception and recording process. As a result, the requirement of the modification of the conventional data read/write technique is issued. In order to overcome the data loss problem due to the use of COTS components and the conventional software technique, a new algorithm called a software buffering technique is proposed. The experiments show that the application of the proposed technique results in reliable real-time reception and recording of high speed serial data.

• Industrial Engineering and Management Systems
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• 제4권1호
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• pp.109-116
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• 2005

Proposed in this paper is an intelligent management system for evaluating science research projects based on fuzzy neural networks with genetic algorithms. This system was planned, designed and tested employing theories and approaches of software engineering. This system was then applied to evaluate science research projects of the Natural Science Foundation of Guangdong Province, People’s Republic of China. The outcome / results shows the feasibility and validity of the system and its possible application to other intelligent management systems.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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• 제16권11호
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• pp.1061-1065
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• 2010

최근 세계 자동차 업계는 AUTOSAR 소프트웨어 플랫폼 표준을 제정하여 소프트웨어의 신뢰성과 재사용성을 향상키고 있다. 그러나 테스트 시스템 및 테스트 프로세스의 신뢰성 확보와 테스트에 소요되는 기간 단축을 위하여 테스트의 표준화 및 자동화가 절실하다. 특히 RTE 및 베이직 소프트웨어 모듈은 표준화를 만족하는 설계 도구를 사용함으로써 최소한의 신뢰성이 보장되지만, 여전히 응용 소프트웨어 컴포넌트에 대해서는 철저한 테스트가 필요하다. 본 논문에서는 표준화된 AUTOSAR 설계 정보를 이용하여 소프트웨어 컴포넌트의 유닛 테스트를 위한 테스트 시스템의 생성 및 테스트 케이스 생성 자동화 방법을 제안하였으며, 테스트 시스템은 TTCN-3 테스트 표준을 적용하였다. 본 논문에서 제안한 방법을 적용함으로써 차량 소프트웨어의 개발 기간 단축 및 신뢰성을 향상시킬 수 있었다.

• 대한임베디드공학회논문지
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• 제2권4호
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• pp.242-250
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• 2007

Wireless sensor networks are subject to highly heterogeneous system requirements in terms of their functionality and performance due to their broad application areas. Though the heterogeneity hinders the opportunity of developing a single universal platform for sensor networks, efforts to provide uniform, inter-operable and scalable ones for sensor networks are still essential for the growth of the industry as well as their technological advance. As a part of our work to develop such a robust platform, this paper presents the software architecture for sensor nodes with focus on our sensor node operating system and its configuration methodology. Addressing principle issues in its design space which includes programming, execution, task scheduling and software layer models, our architecture is highly reconfigurable with respect to system resources and functional requirements and also highly efficient in supporting multi-threading under small system resources.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 하계학술대회 논문집 D
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• pp.2117-2119
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• 2002

On order to have the competitive power in control system economically, development of low price control system must be conducted. In this paper, we are tring to think over the configuring and application of software for hydraulic control system. The detailed contents are system's overview and explanation of firmware and man machine interface system and editing the control logic.

• 한국멀티미디어학회논문지
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• 제14권11호
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• pp.1409-1419
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• 2011

소프트웨어 시스템 개발의 초기 단계에서 시스템의 처리 시간이나 비용을 예측하는 것이 매우 중요하다는 것은 널리 알려진 사실이다. 많은 논문에 처리 시간을 예측하는 페트리넷 방법이 소개된 바 있다. 한편, 컴퓨터 과학 분야의 다른 영역에서는 응용 시스템 개발의 효율성을 증진시키는 방법으로 웹서비스가 깊이 있게 연구되고 있다. 이러한 두 가지 현상을 고려하여, 본 논문은 웹 서비스로 구성된 응용 소프트웨어 시스템의 처리시간을 분석하는 페트리넷 방법을 소개한다. 웹 응용 시스템의 처리시간을 어떤 상수로 표현하기는 대단히 어렵다. 따라서 본 논문은 대기행렬을 갖는 페트리넷으로 웹 응용 시스템을 표현할 것을 제안한다. 본 논문의 핵심은 이러한 대기행렬을 갖는 페트리넷의 분석 방법을 소개한 것이다.

• 대한임베디드공학회논문지
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• 제9권3호
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• pp.157-163
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• 2014

This paper demonstrates the benefit of using MOOS-IvP in the development of control system for Unmanned Underwater Vehicles(UUV). The demand for autonomy in UUVs has significantly increased due to the complexity in missions to be performed. Furthermore, the increased number of sensors and actuators that are interconnected through a network has introduced a need for a middleware platform for UUVs. In this context, MOOS-IvP, which is an open source software architecture, has been developed by several researchers from MIT, Oxford University, and NUWC. The MOOS software is a communication middleware based on the publish-subscribe architecture allowing each application to communicate through a MOOS database. The IvP Helm, which is one of the MOOS modules, publishes vehicle commands using multi-objective optimization in order to implement autonomous decision making. This paper explores the benefit of MOOS-IvP in the development of control software for UUVs by using a case study with an auto depth control system based on self-organizing fuzzy logic control. The simulation results show that the design and verification of UUV control software based on MOOS-IvP can be carried out quickly and efficiently thanks to the reuse of source codes, modular-based architecture, and the high level of scalability.