The paper presents some guidelines supported by a case study of a design of a fault tolerant computer control system. It was devised and implemented as a laboratory platform for the 5th framework project IFATIS. Instead of the redundancy, in this project it is proposed to deal with faults by dynamic reconfiguration of the resources that are still viable after an in-

When a fault occurs in a system, the main problem to be addressed is to raise an alarm, ideally diagnose what fault has occurred, and then decide how to deal with it. The problem of detecting a fault, finding the source/location and then taking appropriate action is the basis of fault tolerant control. In this chapter, an introduction to fault tolerant control (FTC) and fault detection and isol...

• Fault tolerant system System which is redundant to faults so that output is not affected • Why do we need fault tolerant systems? Vast increase in role of embedded systems in day to day applications, critical systems • How to verify the fault tolernace of embedded systems?

software fault-tolerance, process replication failure masking, continuous availability, topology The ambition of fault-tolerant systems is to provide application transparent fault-tolerance at the same performance as a non-fault-tolerant system. Somersault is a library for developing distributed fault-tolerant software systems that comes close to achieving both goals. We describe Somersault and...

Techniques for error detection and fault tolerance for distributed real-time systems using fixed priority scheduling will be developed and studied. Specifically, techniques for node-level transient fault tolerance, and system-level replica determinism will be considered. Error detection and fault tolerance mechanisms will be implemented in a small real-time kernel and evaluated using both VHDL-...

Fault-tolerant computing is the art and science of building computer systems that continue to operate normally in the presence of faults. The fault tolerance field covers a wide spectrum of research area ranging from computer hardware to computer software. A common approach to obtain a fault-tolerant system is using software replication. However, maintaining the state of the replicas consistent...

To date, there is little evidence that modular reasoning about fault-tolerant systems can simplify the veriication process in practice. We study this question using a prominent example from the fault tolerance literature: the problem of reliable broadcast in point-to-point networks opposed to crash failures of processes. The experiences from this case study show how modular speciication techniq...

With wide-spread application of power electronic converters in high power systems, there has been a growing interest in system reliability analysis and fault-tolerant capabilities. This paper presents a comprehensive review of conventional fault-tolerant techniques regarding power electronic converters in case of power semiconductor device failures. These techniques can be classified into four ...

Even though real-time systems have the stringent constraint of completing tasks before their deadlines, many existing real-time operating systems do not implement fault tolerance capabilities. In this paper we summarize fault tolerant real-time scheduling policy for dynamic tasks with ready times and deadlines. Our focus in this paper is the implementation, which includes fault-tolerant schedul...

In engineering application the sensor or actuator fault will lead to seriously damage to mechanical systems. The research of sensor or actuator fault diagnosis and fault-tolerant control is very important to improve the safety and reliability of the system. The paper investigates the fault diagnosis and fault-tolerant methods of vehicle suspension system with Magnetorheological (MR) dampers (ac...