• 한국항공운항학회지
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• 제15권1호
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• pp.61-67
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• 2007

The importance and cost of avionics system in the integration of an aircraft is continuously increasing. And we can expect enlarged software portion in the system integration for the more intelligent, reliable, and automated avionics system. Both military and commercial avionics community have moved toward commercial-off-the-shelf(COTS) equipment and open systems architecture not only to increase affordability but also to reduce acquisition cost, shorten development time and risk. The same concept is applied in developing avionics test system used for the avionics system integration test. In this paper, we present important topics in the development of avionics system including real-time operating system, interconnect data bus, software development methodology, software development process, and system integration test.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2023년도 제67차 동계학술대회논문집 31권1호
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• pp.453-454
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• 2023

4차산업 혁명의 대표 영역인 인공지능은 과학기술뿐 아니라 사회, 경제, 문화 등 우리 사회의 전 분야에 적용되어가고 있다. 이것은 교육기관에서 인공지능 관련 컴퓨터 전공자만이 아닌 여러 전공 각 분야의 전공자 또한 인공지능 교육을 받아야 함을 의미하는 것이다. 이에 따라 전 분야에 걸친 A·I융합 인재의 양성이 관심사항이 되고 있다. 본 논문에서는 항공정비사 양성을 위한 국토교통부 전문교육기관 지정기준에 제시된 교육과목 및 내용에 소프트웨어 교육을 위해 시스템 제어에 관한 이론/실습교육의 추가를 제안하였다. 제안한 교육내용은 항공정비 분야에서의 A·I융합 인재양성에 한 방안이 될 것이라 기대한다.

• 한국정보보호학회:학술대회논문집
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• 한국정보보호학회 2003년도 하계학술대회논문집
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• pp.121-125
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• 2003

In this paper, we propose a framework of Transmission Control Protocol with Software Rejuvenation methodology, which is applicable for network system survivability. This method is utilized to improve the survivability because it can limit the damage caused by successful attacks. The main objectives are to detect intrusions in real time, to characterize attacks, and to survive in face of attacks. To counter act the attacks' attempts or intrusions, we perform the Software Rejuvenation methods such as killing the intruders' processes in their tracks, halting abuse before it happens, shutting down unauthorized connection, and responding and restarting in real time. These slogans will really frustrate and deter the attacks, as the attacker can't make their progress. This is the way of survivability to maximize the deterrence against an attack in the target environment. We address a framework to model and analyze the critical intrusion tolerance problems ahead of intrusion detection on Transmission Control Protocol (TCP).

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2003년도 춘계학술발표논문집 (하)
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• pp.1965-1968
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• 2003

The importance of Security measures by means of Physical Security, Network Security and Online/Internet Security. Lack of security is one of the primary obstacles in fielding many technologies in both commercial and DoD networks. Moreover, Internet censorship may be growing and is becoming increasingly sophisticated. In this paper, we will evaluate the Practice to Policy to Theory Approach for survivability by means of software rejuvenation models. These models would be assessed the effectiveness of proactive fault management in operational software systems and determined optimal times to perform rejuvenation.

• 한국항행학회논문지
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• 제27권4호
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• pp.382-390
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• 2023

국내 150kg 이하의 중형급 무인비행장치의 시장이 급속도로 성장하고 있다. 이에 따라 무인비행장치 제작 및 활용 시장의 규모도 확대되고 있으며, 부품 및 완제품 개발도 활발히 이루어지고 있다. 하지만 국내 무인비행장치의 핵심 부품인 비행제어장치와 탑재 소프트웨어는 개발에 소요되는 비용 및 기간이 과다하여 주로 해외 제품에 의존하고 있다. 본 논문에서는 항공기 탑재 소프트웨어 개발 지침인 DO-178C와 모델 기반 개발 (MBD; model based development) 방법을 이용하는 국내 소프트웨어 개발 및 인증 절차를 제시하였으며, 무인비행장치 개발, 제조, 인증 관련자들을 대상으로 설문을 수행하고 결과를 분석하였다. 또한, 헬리콥터 FCC (Flight Control Computer)를 대상으로 소프트웨어 개발 방안을 적용해 보는 사례연구를 수행하였다.

• 한국항공운항학회지
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• 제26권2호
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• pp.76-82
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• 2018

A test simulator is needed to develop a fuel quantity measurement system that takes into account the roll and pitch motion of the aircraft. In this paper, we develop a test simulator that consists of attitude simulation equipment, fueling equipment, and data storage equipment. The attitude simulation equipment simulates the aircraft attitude. It is manufactured to operate pitch angle and roll angle movement. The fueling equipment supplies fuel to the supplementary fuel tank. The data storage equipment collects and stores the measured data. We also develop an automation software that operates the test simulator and collects data automatically. The test simulator has been automated to prevent testers from being exposed to toxic fuel. Through automation software, the collection period is reduced by one quarter compared to manual collection. The developed fuel quantity measurement system is verified through the test simulator.

• 항공우주의학회지
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• 제30권3호
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• pp.100-107
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• 2020

Internet of Things (IoT) is a technology that communicates data between devices, which are things, using an embedded sensor connected through network backbone such as the internet. Here, data communication technology, sensor technology, and actuator (interface) technology are fused into IoT and it turns devices into smart things. As a result, vast sized data are being generated and that data is being processed into useful actions that can control the things that are devices to make our lives much fruitful. Nowadays, the IoT, early defined as Machine-to-Machine (M2M) connection, becomes a key technology powered by growing innovation of wireless communication trends in the internet connectivity through mobile networking. This paper gives an overview of Internet of Things and brief information about major technologies and its applications in various fields focusing aviation.

• 항공우주의학회지
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• 제29권2호
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• pp.59-66
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• 2019

Artificial Intelligence (AI) born in 1956 is a general term that implies the use of a computer to make intelligent machines with minimal human intervention. AI is a topic dominating diverse discussions on the future of professional employment, change in the social standard and economic performance. In this paper, I describe fundamental concepts underlying AI and their significance to various fields including aviation and medicine. I highlight issues involved and describe the potential impacts and challenges to the industrial fields. While many benefits are expected in human life with AI integration, problems are needed to be identified and discussed with respect to ethical issues and the future roles of professionals and specialists for their wider application of AI.

• Advances in aircraft and spacecraft science
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• 제10권6호
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• pp.545-554
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• 2023

The widespread introduction of unmanned aircrafts has led to the understanding of the need to organize a common information space for manned and unmanned aircrafts, which is reflected in the Russian Unmanned aircraft system Traffic Management (RUTM) project. The present article deals with the issues of spatial information database (DB) organization, which is the core of RUTM and provides storage of various data types (spatial, aeronautical, topographical, meteorological, vector, etc.) required for flight safety management. Based on the analysis of functional capabilities and types of work which it needs to ensure, the architecture of spatial information DB, including the base of source information, base of display settings, base of vector objects, base of tile packages and also a number of special software packages was proposed. The issues of organization of these DB, types and formats of data and ways of their display are considered in detail. Based on the analysis it was concluded that the optimal construction of the spatial DB for RUTM system requires a combination of different model variants and ways of organizing data structures.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.244-246
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• 2006

Softwares in railway system are being used in the area of railway control system, directly associated to safety. Because the instinct characteristic of Software is uncertainty, Software development without safety insurance is very hazardous situation. In order to derive safety certification process in the railway system, certification and approval processes in the nuclear, aviation, and military area are studied. Software quality should be improved by two aspects : one is product aspect, another is process aspect. GS(Good Software) and ES(Excellent Software) certification can be exemplified in a product aspect approach. In those process certification, CMMI (Capability Maturity Model Integration) or SPICE (Software Process Improvement and Capability dEtermination : ISO/IEC15504) is being used as models for assessing process maturity of organization. Following the studies, safety management procedure in the railway system is suggested.