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Nowadays, Industrial Control Systems (ICSs) are employed to monitor and control safety-critical industrial processes. A Supervisory Control and Data Acquisition (SCADA) system is an ICS to perform centralized monitoring and also to control field sites in long-distance communication networks. A SCADA is a distributed system composed of several Remote Terminal Units (RTUs) and a Master Terminal Unit...
Backward recovery is the one of the most important techniques for error recovery in safety-critical systems which are usually based on nonvolatile memories. Since storing checkpoints in hard disks -as a nonvolatile memory- imposes noteworthy timing overhead to the system, diskless checkpointing would be a good solution for low cost fault tolerance in parallel and distributed systems. In this paper...
Reconfigurable devices employed in safety-critical real-time applications ought to tolerate faults in a timely manner. Fault-tolerant schedulers can be used to guarantee both real-time and fault-tolerant behaviors of such systems. In this paper the effects of three real-time scheduling algorithms Earliest Deadline First (EDF), Least Laxity First (LLF), and Rate Monotonic (RM) enhanced by two fault...
Nowadays operating systems are inseparable part of computer systems. Real-time operating systems (RTOS) are a special kind of operating systems that their main goal is to operate correctly and provide correct and valid results in a bounded and predetermined time. RTOSs are widely used in safety-critical domains. In these domains all the system's requirements should be met and a catastrophe occurs...
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