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Estimation method to determine the optimized automation level considering loss of situation awareness of human operators in nuclear power plants (NPPs)

 
LEE Seung-min1, KIM Jong-hyun2, and SEONG Poong-hyun3
 
1. Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology, 305-701, Daejeon, Republic of Korea (jewellee@kaist.ac.kr)
2. KEPCO International Nuclear Graduate School, 1456-1, Shinam-ri, Seosaeng-myeon, Ulju-gun, Ulsan, Republic of Korea (jonghyun.kim@kings.ac.kr)
3. Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology, 305-701, Daejeon, Republic of Korea (phseong@kaist.ac.kr)
 
Abstract: Automation has been introduced to reduce human error and to enhance performance in various industrial fields, including the nuclear industry. However, the excessive introduction of automation can generate new roles for human operators and changes activities in unexpected ways. Thus, to determine the appropriate introduction of automation has been an important issue. In this paper, the level of ostracism (LOO), which is the degree of difficulty in obtaining information from an automated system, is defined by analyzing the negative aspects of introducing automation. In addition, an analysis method to select an appropriate automation level considering both positive and negative effects at the same time is proposed.
Keyword: automation; level of automation (LOA); out-of-the-loop; situation awareness
 
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