Fault-Hiding Control Reconfiguration for a Class of Discrete Event Systems

Time-Based Estimator for Control Reconfiguration of Discrete Event Systems (DES)

“…While the second solution is to have a reconfigurable control able to adapt and exploit the services still available offered by the operative part. Several approaches have been proposed in [15] [16], [17], [18], [19] and [20].…”

“…The key advantage of our approach is the use of separate plant element models in order to exploit a distributed control that in the one hand avoid the combinatorial explosion recurrent in the reconfiguration approaches based on centralized and decentralized control [20], [19], [18]. On the other hand, it allows the reconfiguration of the only faulty plant element without reconfiguring all the system's control.…”

Fault-Tolerant Control of Discrete Event Systems: Comparison of two approaches on the same case study

“…The Fault-Hiding method was introduced in [4]. A reconfiguration block is interposed between the plant and the controller (see Figure 2).…”

“…Hence methods of fault-tolerant control for Discrete Event Systems (DES) can be classified into two categories: methods based on faultaccommodation ( [2], [3], [4]) and methods based on reconfiguration ( [5], [6]). This paper proposes a comparison of the fault-hiding approach [4] and of the control reconfiguration approach [5] through an application on a single case study. These methods were selected in order to compare one method using faultaccommodation and on method using reconfiguration.…”

Active Fault-Tolerant Control of Timed Automata with Guards

“…Some approach allows degraded modes of operation (Wen et al 2008) (Wittmann, Richter, and Moor 2012). An extension of the latter introduces a module that hides the fault to the controller ( Wittmann, Richter, and Moor 2013).…”