Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Influence Analysis of Actual Fault Cases in Unmanned Vehicle Industry and Study on Fault Tolerant Technology

무인이동체 산업의 실제 고장사례에 대한 영향성 분석 및 고장대응기술 적용방안

  • Received : 2022.04.19
  • Accepted : 2022.07.14
  • Published : 2022.09.01
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Abstract

This paper discusses the utilization of fault-tolerant technology in the industry by analyzing the status of drone failures in the unmanned vehicle industry survey conducted in 2020. Based on the survey results of the domestic unmanned vehicle industry, we identify subsystems with high fault rates and high severity when faults occur. In addition, fault simulations of the identified subsystems are conducted to analyze the effect of the fault on the vehicles. After that, the fault diagnosis and fault compensation methods studied so far are reviewed, and research cases of the methods are examined. Moreover, the ways to apply it to actual fault cases in the unmanned vehicle industry are debated. Furthermore, based on the previous discussion, the fault-tolerant system is presented, and the consideration when designing the fault-tolerant system in the industry are studied.

본 논문은 2020년에 실시한 무인이동체 산업실태조사의 드론 고장 발생현황에 대한 설문내용을 분석하여 산업계에서의 고장대응기술의 활용성에 대해 논하고자 한다. 먼저, 국내 무인이동체 산업실태조사 결과를 기반으로 고장률이 높고, 고장 발생 시 심각도가 높은 하위시스템(Subsystem)을 파악한다. 또한 공중 무인이동체를 대상으로 고장률이 높은 부품에 대한 고장 시뮬레이션을 수행한다. 이를 통해 고장이 무인이동체에 미치는 영향에 대해 분석한다. 이후 현재까지 연구된 고장진단 및 고장대응 기법과 연구사례를 소개하며, 무인이동체 산업의 실 고장사례에 적용하기 위한 방안에 대해 논의한다. 나아가 앞서 논의한 내용을 기반으로 고장대응체계를 제시하고, 산업계에서 고장대응체계 설계 시에 고려해야 할 사항에 대해 살펴본다.

Keywords

Acknowledgement

본 연구는 과학기술정보통신부의 재원으로 한국연구재단, 무인이동체원천기술개발사업단의 지원을 받아 무인이동체원천기술개발사업을 통해 수행되었음(2020M3C1C1A01083162)

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