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首页> 外文期刊>IEEE transactions on automation science and engineering >Fault-Tolerant Control for Safety of Discrete-Event Systems
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Fault-Tolerant Control for Safety of Discrete-Event Systems

机译:离散事件安全的容错控制

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This paper considers fault-tolerant control that ensures the safety of a discrete-event system. We consider multiple faulty modes. Each faulty mode is modeled by an automaton. These automata, together with the automaton modeling normal mode, describe a discrete-event system with faults. Each faulty mode has some illegal states that must be avoided by control so that the fault can be tolerated. We assume that fault-tolerant control takes actions (disablements) only when the occurrence of a fault is certain. We consider cases of both full event observation and partial event observation. We derive necessary and sufficient conditions for the existence of fault-tolerant control. We also provide formulas and algorithms to calculate control actions if the necessary and sufficient conditions are satisfied. Both offline control synthesis (for full event observation) and online control synthesis (for partial event observation) are investigated. We allow multiple faults as well as single faults.
机译:本文考虑了可确保离散事件系统安全的容错控制。我们考虑多种故障模式。每个故障模式均由自动机建模。这些自动机与自动机建模正常模式一起描述了具有故障的离散事件系统。每个故障模式都有一些非法状态,必须通过控制来避免这些状态,以便可以容忍该故障。我们假设容错控制仅在确定发生故障时才采取措施(失效)。我们考虑全事件观察和部分事件观察的情况。我们为容错控制的存在导出了必要和充分的条件。如果满足必要和足够的条件,我们还提供公式和算法来计算控制动作。研究了离线控制综合(用于完整事件观察)和在线控制综合(用于部分事件观察)。我们允许多个故障以及单个故障。

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