Nuclear Engineering and Technology

  • 제54권4호
  • /
  • Pages.1261-1270
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  • 2022
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  • 1738-5733(pISSN)
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  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Use of gaze entropy to evaluate situation awareness in emergency accident situations of nuclear power plant

  • Lee, Yejin (Department of Industrial Design Engineering, Korea University of Technology and Education) ;
  • Jung, Kwang-Tae (Department of Industrial Design Engineering, Korea University of Technology and Education) ;
  • Lee, Hyun-Chul (SA Monitoring and Mitigation Research Team, Korea Atomic Energy Research Institute)
  • 투고 : 2020.12.23
  • 심사 : 2021.10.15
  • 발행 : 2022.04.25
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초록

This study was conducted to investigate the possibility of using gaze entropy to evaluate an operator's situation awareness in an emergency accident situation of a nuclear power plant. Gaze entropy can be an effective measure for evaluating an operator's situation awareness at a nuclear power plant because it can express gaze movement as a single comprehensive number. In order to determine the relationship between situation awareness and gaze entropy for an emergency accident situation of a nuclear power plant, an experiment was conducted to measure situation awareness and gaze entropy using simulators created for emergency accident situations LOCA, SGTR, SLB, and LOV. The experiment was to judge the accident situation of nuclear power plants presented in the simulator. The results showed that situation awareness and Shannon, dwell time, and Markov entropy had a significant negative correlation, while visual attention entropy (VAE) did not show any significant correlation with situation awareness. The results determined that Shannon entropy, dwell time entropy, and Markov entropy could be used as measures to evaluate situation awareness.

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