A design condition for incorporating human judgement into monitoring systems

被引:12
作者
Tanaka, K [1 ]
Klir, GJ
机构
[1] Univ Electrocommun, Grad Sch Informat Syst, Tokyo 1828585, Japan
[2] SUNY Binghamton, Ctr Intelligent Syst, Binghamton, NY 13901 USA
[3] SUNY Binghamton, Dept Syst Sci & Ind Engn, Binghamton, NY 13901 USA
关键词
safety monitoring; automatic monitoring; human judgement; Dempster-Shafer theory; total expected loss;
D O I
10.1016/S0951-8320(99)00007-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In safety monitoring, there exists an uncertainty situation in which the sensor cannot detect whether or not the monitored object is in danger. For the uncertainty zone identified by a non-homogeneous safety monitoring system that utilizes two types of sensors with different thresholds, operators or experts are expected to judge whether the real state is safe or dangerous on the basis of additional information from a detailed inspection or other related sensors output. However, the activities for inspection performed by relevant humans may require additional cost and introduce inspection errors. The present article proposes two types of an automatic monitoring system not involving any human inspection or a human-machine (H-M) cooperative monitoring system with inspection. In order to compare the systems, an approach based on the Dempster-Shafer theory is proposed as uncertainty analysis by this theory (it is simpler than by the traditional Bayesian approach). By comparing their expected losses as a result of failed dangerous failures or failed safe failures as well as the inspection errors, the condition is determined under which H-M cooperative systems incorporating human judgements are more effective than automatic monitoring systems. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
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页码:251 / 258
页数:8
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