By David Powell

ISBN-10: 1441948805

ISBN-13: 9781441948809

ISBN-10: 1475733534

ISBN-13: 9781475733532

The layout of computers to be embedded in serious real-time purposes is a fancy job. Such structures must never purely warrantly to satisfy tough real-time time cut-off dates imposed by means of their actual setting, they have to warrantly to take action dependably, regardless of either actual faults (in undefined) and layout faults (in or software). A fault-tolerance procedure is essential for those promises to be commensurate with the protection and reliability specifications of many lifestyles- and mission-critical purposes. This e-book explains the motivations and the result of a collaborative project', whose goal used to be to seriously lessen the lifecycle expenditures of such fault­ tolerant structures. The end-user businesses engaging during this undertaking already install fault-tolerant platforms in serious railway, house and nuclear-propulsion functions. although, those are proprietary structures whose architectures were adapted to fulfill domain-specific requisites. This has ended in very expensive, rigid, and infrequently hardware-intensive options that, by the point they're constructed, demonstrated and licensed to be used within the box, can already be out-of-date by way of their underlying and software program technology.

Show description

Read Online or Download A Generic Fault-Tolerant Architecture for Real-Time Dependable Systems PDF

Similar quality control books

Laura L. Pullum's Software Fault Tolerance Techniques and Implementation PDF

This leading edge source offers the main complete assurance of software program fault tolerance suggestions to lead pros via layout, operation and function. It positive factors an in-depth dialogue at the merits and drawbacks of particular recommendations, so practitioners can come to a decision which of them are most suitable for his or her paintings.

Get Metrics for HighQuality Specular Surfaces PDF

This ebook offers the optical part and structures clothier, and caliber coverage engineers and executives with the definitions, dimension rules, and traditional metrics used to symbolize top quality specular surfaces. the writer covers either the conventional visible equipment in addition to more moderen (but now not unavoidably higher) computer-aided strategies and describes the metrics followed by means of the recent ISO criteria, together with the atmosphere of shape and end tolerances.

Get Die neue ISO 9001:2015 - Status, Neuerungen und Perspektiven PDF

Die ISO 9001 ist die bedeutendste Systemnorm weltweit. Mit ihrer Umsetzung belegen Unternehmen ihre Qualifikation, dass sie Produkte oder Dienstleistungen bereitstellen, die systematisch und nachvollziehbar geplant und realisiert werden sowie die Anforderungen von Kunden, Behörden und Gesetzgeber dem Grundsatz nach erfüllen.

Download e-book for kindle: Probabilistic models for dynamical systems by Haym Benaroya

Now in its moment variation, Probabilistic versions for Dynamical platforms expands just about likelihood thought. Written as an extension to its predecessor, this revised model introduces scholars to the randomness in variables and time based services, and permits them to remedy governing equations.

Additional info for A Generic Fault-Tolerant Architecture for Real-Time Dependable Systems

Sample text

For j = 1, T is the only received value (it is necessarily the local value). If n = 2, then both nodes are suspected to be faultys. If n = 1, then just proceed. The case n = 0 is vacuous (one node never joins itself). l is positive, then the local node is early. • If ~ is negative, then the local node is late. l = T + R . 4 Initial Synchronisation Two solutions can be distinguished to perform initial synchronisation of a set of nodes: • Start all nodes independently. Initial synchronisation algorithms exist that can synchronise such a set of non-synchronised active nodes (even in the This status will be subsequently used to effectively identify the faulty node.

Any value, if the emitter is arbitrary-faulty. Note that in the first three cases, all receiver nodes obtain the same value. 2 Assumptions The ZA algorithm relies on the following assumptions: Al Every message that is sent between non-faulty processors is correctly delivered. In particular, link faults are considered indistinguishable9 from node faults. A2 The receiver of a message knows who sent it (each node has a private link to the other nodes, cf. 4). At the protocol level, a symmetric-faulty transmitter node is indistinguishable from a non-faulty node.

Specific work has addressed hierarchical modelling with the aim of mastering the complexity of such detailed models [Jenn 1998a]. , a design engineer who is not necessarily a modelling expert). Although they were supported by different tools, namely UltraSAN [Sanders et al. 1995], MOCA-PN [Dutuit et al. 1997] and SURF-2 [Beounes et al. 1993], the Introduction and Overview 22 modelling efforts all rely on the stochastic Petri net formalism. This facilitates reuse of the models and modelling methodology according to the various viewpoints.

Download PDF sample

A Generic Fault-Tolerant Architecture for Real-Time Dependable Systems by David Powell

by Anthony

Rated 4.84 of 5 – based on 26 votes