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An abnormal situation modeling method to assist operators in safety-critical systems

机译：在安全关键系统中协助操作员的异常情况建模方法

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摘要

One of the main causes of accidents in safety-critical systems is human error. In order to reduce human errors in the process of handling abnormal situations that are highly complex and mentally taxing activities, operators need to be supported, from a cognitive perspective, in order to reduce their workload, stress, and the consequent error rate. Of the various cognitive activities, a correct understanding of the situation, i.e. situation awareness (SA), is a crucial factor in improving performance and reducing errors. Despite the importance of SA in decision-making in time- and safety-critical situations, the difficulty of SA modeling and assessment means that very few methods have as yet been developed. This study confronts this challenge, and develops an innovative abnormal situation modeling (ASM) method that exploits the capabilities of risk indicators, Bayesian networks and fuzzy logic systems. The risk indicators are used to identify abnormal situations, Bayesian networks are utilized to model them and a fuzzy logic system is developed to assess them. The ASM method can be used in the development of situation assessment decision support systems that underlie the achievement of SA. The performance of the ASM method is tested through a real case study at a chemical plant.
机译：安全关键系统中事故的主要原因之一是人为错误。为了减少在处理非常复杂且费力的异常情况时的人为错误，需要从认知角度为操作员提供支持，以减少他们的工作量，压力和错误率。在各种认知活动中，对情况的正确理解，即情况意识（SA），是提高绩效和减少错误的关键因素。尽管SA在对时间和安全至关重要的情况下的决策中很重要，但是SA建模和评估的困难意味着很少开发出方法。这项研究面对这一挑战，并开发了一种创新的异常情况建模（ASM）方法，该方法利用了风险指标，贝叶斯网络和模糊逻辑系统的功能。风险指标用于识别异常情况，贝叶斯网络用于建模，模糊逻辑系统用于评估。 ASM方法可用于开发实现SA的状态评估决策支持系统。 ASM方法的性能通过在化工厂的实际案例研究进行了测试。

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  • 来源
    《Reliability Engineering & System Safety》 |2015年第1期|33-47|共15页
  • 作者

    Mohsen Naderpour; Jie Lu; Guangquan Zhang;

  • 作者单位

    Decision Systems and e-Service Intelligence Laboratory, Centre for Quantum Computation & Intelligent Systems, School of Software, Faculty of Engineering and IT, University of Technology Sydney, PO Box 123, Broadway, NSW 2007, Australia;

    Decision Systems and e-Service Intelligence Laboratory, Centre for Quantum Computation & Intelligent Systems, School of Software, Faculty of Engineering and IT, University of Technology Sydney, PO Box 123, Broadway, NSW 2007, Australia;

    Decision Systems and e-Service Intelligence Laboratory, Centre for Quantum Computation & Intelligent Systems, School of Software, Faculty of Engineering and IT, University of Technology Sydney, PO Box 123, Broadway, NSW 2007, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Situation awareness; Situation assessment; Safety-critical systems; Bayesian networks; Fuzzy logic systems; Risk assessment;

    机译：态势感知;情况评估;安全关键系统;贝叶斯网络;模糊逻辑系统;风险评估;

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