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Recently, FPGA-based NCS applications have been widely used. Industrial environments have a lot of electromagnetic interference which may induce transient and permanent faults. As a result, Fault-Tolerant FPGA based NCS applications are required. In this paper, an NCS model composed of a combination of S2A architecture and In-Loop architecture connected to each other through Ethernet switch, is described...
Nowadays, FPGA-based Networked Control Systems (NCSs) are frequently used. Transient and permanent faults occur often as a result of radiation in industrial environments. Accordingly, Fault-Tolerant (FT) FPGA-based NCSs are desired. In this paper, an NCS model is proposed composing of In-Loop and S2A architectures linked via an Ethernet switch. This architecture is used in shape detection machines...
Fault-Tolerance is quickly becoming a very important issue in the design of industrial automation systems. This paper addresses this issue in the context of temporary failures occurring in harsh industrial environments. The Fault-Tolerant design of sensors and controllers is investigated for both the In-Loop and Sensor-to-Actuator architectures. Processing is implemented on FPGAs whenever possible...
Over the last decade, several Fault-Tolerant techniques for FPGAs were proposed especially for recovering from permanent faults. Most of those techniques were based on relocation of the defective module into a new location acting as a spare. Accordingly, what is the suitable number of spares that should be added to a system? In this paper, a performability model is developed to quantitatively investigate...
Fault-tolerance is becoming an essential feature in the design of Networked Control Systems (NCSs). Furthermore, Sensor-to-Actuator (S2A) architectures have shown some advantages over conventional In-Loop architectures. This paper focuses on fault-tolerant controllers in the context of S2A systems. It proposes the use of Triple Modular Redundancy at the controller level. The fault-tolerant controller...
FPGAs are becoming more popular in the domain of safety-critical applications (such as space applications) due to their high performance, re-programmability and reduced development cost. Such systems require FPGAs with self-detection and self-repairing capabilities in order to cope with errors due to the harsh conditions that usually exist in such environments. In this paper, a new dynamic fault recovery...
Nowadays, FPGAs play a great role in electronic circuits design especially in implementing critical applications. As a result, the need for adding fault-tolerance to FPGAs becomes very important. In this paper, a fault-tolerant technique and associated modifications on FPGA architecture are proposed. This technique can detect and recover from open faults in programmable interconnects. It was successfully...
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