文章基本信息

标题：A FAULT-TOLERANT EMERGENCY-AWARE ACCESS CONTROL SCHEME FOR CYBER-PHYSICAL SYSTEMS
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作者：Guowei Wu ; Dongze Lu ; Feng Xia* 等
期刊名称：European Integration Studies
印刷版ISSN：2335-8831
出版年度：2011
卷号：40
期号：1
页码：29-40
DOI：10.5755/j01.itc.40.1.190
语种：English
出版社：Kaunas University of Technology
摘要：Access control is an issue of paramount importance in cyber-physical systems (CPS). In this paper, an access control scheme, namely FEAC, is presented for CPS. FEAC cannot only provide the ability to control access to data in normal situations, but also adaptively assign emergency-role and permissions to specific subjects and inform subjects without explicit access requests to handle emergency situations in a proactive manner. In FEAC, emergency-group and emergency-dependency are introduced. Emergencies are processed in sequence within the group and in parallel among groups. A priority and dependency model called PD-AGM is used to select optimal response-action execution path aiming to eliminate all emergencies that occurred within the system. Fault-tolerant access control policies are used to address failure in emergency management. A case study of the hospital medical care application shows the effectiveness of FEAC.
关键词：fault-tolerance; access control; cyber-physical systems; emergency management