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Licao Dai
University of South China
Situation awarenessHuman errorHuman reliabilityReliability engineeringOperator (computer programming)
21Publications
5H-index
153Citations
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Publications 19
Newest
#1Pengcheng Li (University of South China)H-Index: 2
#2Li Zhang (University of South China)H-Index: 3
Last. Xiaofang Li (University of South China)H-Index: 3
view all 5 authors...
Abstract In digital control rooms, situation awareness (SA) reliability has become an important element affecting operator's reliability. In order to establish a more reasonable assessment method of SA reliability under the condition of very lack of data, based on the established influential factor model of SA reliability considering the causality relationship of performance shaping factors (PSFs) in this paper, a fuzzy logic and analytic hierarchy process (AHP)-based method is established to mo...
3 CitationsSource
#1Pengcheng Li (University of South China)H-Index: 2
#2Xiaofang Li (University of South China)H-Index: 3
Last. Licao Dai (University of South China)H-Index: 5
view all 4 authors...
Abstract Situation awareness (SA) reliability of operators is an important component of human reliability analysis (HRA) in digital nuclear power plants (NPPs). Therefore, how to identify effectively and reliably the risk of SA errors is of great significance for SA error prevention and risk reduction. SA reliability assessment model or method based on fuzzy logic and analytic hierarchy process (AHP) is forwarded in the first paper. In order to prove its effectiveness and reliability, sensitivit...
Source
#1Pengcheng Li (University of South China)H-Index: 3
#2Xiao Jin (University of South China)
Last. Licao Dai (University of South China)H-Index: 5
view all 5 authors...
Operator’s situation awareness (SA) issues are more prominent in digital nuclear power plants (NPPs). In order to identify the SA levels of operators and levels of team shared situation awareness (SSA), a SA measure method was developed based on Situation Awareness Global Assessment Technique (SAGAT). Furthermore, it was used to measure the SA levels of operators by simulation experiments and a method was established to determine the team SSA level. The experimental results showed that the indiv...
Source
#1Pengcheng Li (University of South China)H-Index: 2
#2Li Zhang (University of South China)H-Index: 3
Last. Yu Jiang (University of South China)H-Index: 1
view all 5 authors...
Abstract In nuclear power plants (NPPs), man-machine interfaces (MMIs) are being transformed from conventional panels to computer workstations. Therefore, operators’ behavior and performance shaping factors (PSFs) in modern main control rooms (MCRs) differs from what they do in a conventional one. New human error, error mechanism and PSFs etc. are introduced into digital control systems (DCS). The conventional human error analysis (HEA) methods cannot meet new requirements. So it is important to...
2 CitationsSource
#1Pengcheng Li (University of South China)H-Index: 3
#2Xiaofang Li (University of South China)H-Index: 3
Last. Xiao Jin (University of South China)
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In the digital main control rooms (MCRs) of nuclear power plants (NPPs), the role and responsibility of operators as well as their communication ways are changed by the digitization of the human-machine interface, which leads to some new team situation awareness (TSA) errors and different error distribution. In order to identify the interaction mechanism among a team during collecting information and consistently understanding the system/component status, an team interaction model is established...
Source
#1Pengcheng Li (University of South China)H-Index: 3
#2Li Zhang (University of South China)H-Index: 3
Last. Xiaofang Li (University of South China)H-Index: 3
view all 4 authors...
Abstract Situational awareness (SA) is a key element impacting operators’ and decision-making and performance in nuclear power plants. SA reliability is an important part of human reliability analysis. In order to quantitatively assess SA reliability, the Bayesian network model of operators’ SA reliability analysis in digital main control rooms is built by data analysis. Furthermore, a quantitative assessment procedure of SA reliability is established, and the conditional probability distributio...
6 CitationsSource
#1Pengcheng Li (University of South China)H-Index: 2
#2Li Zhang (University of South China)H-Index: 3
Last. Xiaofang Li (University of South China)H-Index: 3
view all 4 authors...
Abstract This paper tries to overcome shortcomings of the traditional assessment method of situation awareness (SA) reliability and build more robust causality model of SA. Firstly, the organization-oriented analysis framework or method of SA error was used to analyze human factor events in nuclear power plants (NPPs) and the data of 132 samples were obtained. Then, the correlation analysis method is used to identify the correlation relationships between factors influencing SA and next factor an...
4 CitationsSource
#1Jianjun Jiang (University of South China)H-Index: 3
#2Yiqun Wang (University of South China)H-Index: 3
Last. Anna Zhang (University of South China)H-Index: 1
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Abstract Nowadays, traditional human–machine interface has been converted into digital human–computer interface in most industrial control rooms, then, cognitive process and reliability are also bound to be different from traditional human–machine interface. Aiming at the situation, the authors in this paper propose a cognitive reliability model with influencing factors based on Bayesian network. Taking a nuclear power plant (Npp) as research background, taking simulative experiment as study way...
3 CitationsSource
#1Pengcheng Li (University of South China)H-Index: 2
#2Licao Dai (University of South China)H-Index: 5
Last. Xiaofang Li (University of South China)H-Index: 3
view all 5 authors...
In order to identified macro-cognitive processes and psychological error mechanisms (PEMs) of TSA in digital NPPs. Firstly, the components of TSA are identified according to team task analysis, which including individual situation awareness (ISA), shared situation awareness (SSA) and mutual awareness (MA). Furthermore, the macro-cognitive processes of TSA are identified respectively from ISA, SSA and MA on the basis of simulation experiments, and the process model of TSA is established to illust...
1 CitationsSource
#1Pengcheng Li (University of South China)H-Index: 3
#2Li Zhang (University of South China)H-Index: 3
Last. Xiaofang Li (University of South China)H-Index: 3
view all 4 authors...
Abstract Situation awareness (SA) is a key element that impacts operator’s decision-making and performance in nuclear power plants (NPPs). The subsequent complex cognitive activities cannot be correctly completed due to errors of situation awareness (ESA), which will lead to disastrous consequences. In order to investigate and analyze operator’s ESA in the digitized main control room (DMCR) of a nuclear power plant, the model of ESA is established, the classification system of ESA is developed b...
12 CitationsSource
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