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Fault-Tolerant Real-Time Systems: The Problem of Replica Determinism

Format Post in Automation BY Stefan Poledna

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Fault-Tolerant Real-Time Systems: The Problem of Replica Determinism
Stefan Poledna
Type: eBook
Released: 1995
Publisher: Springer
Page Count: 163
Format: pdf
Language: English
ISBN-10: 079239657X
ISBN-13: 9780792396574
Real-time computer systems are very often subject to dependability requirements because of their application areas.Fault-Tolerant Real-Time Systems: The ... Textbook Fly-by-wire airplane control systems, control of power plants, industrial process control systems and others are required to continue their function despite faults. Fault-tolerance and real-time requirements thus constitute a kind of natural combination in process control applications. Systematic fault-tolerance is based on redundancy, which is used to mask failures of individual components. The problem of replica determinism is thereby to ensure that replicated components show consistent behavior in the absence of faults. It might seem trivial that, given an identical sequence of inputs, replicated computer systems will produce consistent outputs. Unfortunately, this is not the case. The problem of replica non-determinism and the presentation of its possible solutions is the subject of Fault-Tolerant Real-Time Systems: The Problem of Replica Determinism. The field of automotive electronics is an important application area of fault-tolerant real-time systems. Systems like anti-lock braking, engine control, active suspension or vehicle dynamics control have demanding real-time and fault-tolerance requirements. These requirements have to be met even in the presence of very limited resources since cost is extremely important. Because of its interesting properties Fault-Tolerant Real-Time Systems gives an introduction to the application area of automotive electronics. The requirements of automotive electronics are a topic of discussion in the remainder of this work and are used as a benchmark to evaluate solutions to the problem of replica determinism.

Fault-Tolerant Real-Time Systems: The Problem of Replica Determinism

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