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Wednesday, July 22, 2020 | History

3 edition of Rective system verification study--fault-tolerant transputer communication found in the catalog.

Rective system verification study--fault-tolerant transputer communication

Rective system verification study--fault-tolerant transputer communication

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Published by National Aeronautics and Space Administration, Ames Research Center, National Technical Information Service, distributor in Moffett Field, Calif, [Springfield, Va .
Written in English

    Subjects:
  • Fault-tolerant computing.

  • Edition Notes

    Other titlesFault tolerant transputer communication
    StatementD. Francis Crane and Philip J. Hamory.
    SeriesNASA technical memorandum -- 108784
    ContributionsHamory, Philip J., Ames Research Center.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17110675M

    For safety-related processes fault-tolerant systems with redundancy are required in order to reach comprehensive system integrity. This book gives an introduction into the field of fault detection, fault diagnosis and fault-tolerant systems with methods which have proven their performance in practical applications. It guides the reader in a Reviews: 1. This page examines the distinction between passively monitored symptoms and strategies for determining non-routine tests, as a part of the white paper A Guide to Fault Detection and Diagnosis.. In the case of online monitoring systems, many diagnostic techniques assume routine scanning of every variable of interest, or that subsystems such as agents just send events when there is a problem.

      A. Pnueli: Applications of Temporal Logic to the Specification and Verification of Reactive Systems: A Survey of Current Trends. Lecture Notes in Computer Science, Vol. , Springer , Pages – Google Scholar. This book presents results of research into techniques to aid the formal verification of mixed hardware/software systems. Aspects of system specification and verification from requirements down to the underlying hardware are addressed, with particular regard to real-time issues.

    Verification and Evaluation of Computer and Communication Systems: 12th International Conference, VECoS , Grenoble, France, September 26–28, , Proceedings (Lecture Notes in . Verification and Validation are a series of technical and managerial activities performed by an entity (which is referred to as independent V&V) other than the developer of a system to improve the quality and reliability of the system and assure the developed product satisfies the needs of the customers.


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Rective system verification study--fault-tolerant transputer communication Download PDF EPUB FB2

Reactive system verification case study: Fault-tolerant transputer communication A reactive program is one which engages in an ongoing interaction with its environment. A system which is controlled by an embedded reactive program is called a reactive system. Get this from a library.

Reactive system verification study--fault-tolerant transputer communication. [D Francis Crane; Philip J Hamory; Ames Research Center.]. Using the Ostroff framework for reactive system verification, an approach to achieving fault-tolerant communication between transputers was shown to be effective.

The key components of the design, the decoupler processes, may be viewed as discrete-event-controllers introduced to constrain system behavior such that system specifications are Author: D. Francis Crane and Philip J. Hamory. I-t also describes the design and implementation of the Supervisor Module that is responsible for user system Rective system verification study--fault-tolerant transputer communication book through a command language.

Number of Pages: 90 Read more. This article presents experiences gained from the verification of communication properties of a large-scale real-world embedded system by means of formal methods. Abstract: Modern distributed computer control systems have to provide both highly reliable and hard real-time communication.

To meet these requirements, a communication protocol adapted to the characteristics of data to be transferred has to be chosen. Concerning high reliability, additional measures have to be taken, since current protocols of the field-bus domain do not provide sufficient. Abstract: Model checking has been successfully used for detailed formal verification of instrumentation and control (I&C) systems, as long as the focus has been on the application logic, alone.

In safety-critical applications, fault tolerance is also an important aspect, but introducing I&C hardware failure modes to the formal models comes at a significant computational cost.

This paper describes a new control system for the PUMA industrial robotic manipulator based on transputer networks, where both the hardware and software designs are detailed. A Transputer Interface Board (TIB) establishing a transputer link to the microprocessors of the PUMA arm joints has been designed, built and tested.

Model checking is a powerful approach for the formal verification of software. When applicable, it automatically provides complete proofs of correctness, or explains, via counter-examples, why a system is not book provides a basic introduction to this new technique.

The first part. THREADS AND INTERPROCESS COMMUNICATION Introduction Working with Threads Interprocess Communication Events Semaphores Mailboxes Building a Testbench with Threads and IPC   Testing is the detailed quantifying method of verification it is ultimately required in order to verify the system design.

2) Verification Execution: [1] The performance of a given verification task with supporting resources.

The verification task results, whether from a test, analysis, inspection or simulation, are documented for compliance or. A high-level system model is a functional model without implementation details. You can gain further insight into system behavior through simulation by creating a system model that includes the control algorithm or software model and the physical plant and environmental models of your system.

Recently, formal verification, giving mathematical proof of the correctness of designs, has been gaining popularity. For higher design productivity, it is essential to debug designs as early as possible, which this book facilitates.

This book covers all aspects of high-level formal and semiformal verification techniques for system level designs. Authors. Craig Silverman. Craig Silverman is an entrepreneurial journalist and the founder and editor of Regret the Error, a Poynter Institute blog about media errors, accuracy and has also developed a course on digital age verification for the Poynter News University.

Craig serves as director of content for Spundge, a platform that enables professionals to grow and monetise. Fault-tolerant systems are designed to compensate for multiple failures.

Such systems automatically detect a failure of the computer processor unit, I/O subsystem, memory cards, motherboard, power supply or network failure point is identified, and a backup component or procedure immediately takes its place with no loss of service.

To ensure fault tolerance, enterprises need to. This book constitutes the proceedings of the 12th International Conference on Verification and Evaluation of Computer and Communication Systems (VECoS ) held at Grenoble, France, in.

T1 - Verification of fault tolerant safety I&C systems using model checking. AU - Pakonen, Antti. AU - Buzhinsky, Igor. PY - /2/1. Y1 - /2/1. N2 - Model checking has been successfully used for detailed formal verification of instrumentation and control (IC) systems, as long as the focus has been on the application logic, alone.

Fault tolerance is the property that enables a system to continue operating properly in the event of the failure of (or one or more faults within) some of its components.

If its operating quality decreases at all, the decrease is proportional to the severity of the failure, as compared to a naively designed system, in which even a small failure can cause total breakdown. The most important thing is communication between you and your course coordinator.

If you are taking a break or are busy at work and do not have time to study you need to tell her or him. Similarly, if you want to study at a faster rate, then just email in good time and ask for more course content. This book introduces block diagrams, fault trees, and Markov models for graphically representing the reliability of a system, and describes the various types of sensors, logic solvers, actuators, and valves available for safety instrumented systems.

It also walks through the safety instrumented function (SIF) verification process, discussing equipm. Among the most important problems confronting computer science is that of developing a paradigm appropriate to the discipline.

Proponents of formal methods - such as John McCarthy, C.A.R. Hoare, and Edgar Dijkstra - have advanced the position that computing is a mathematical activity and that.CompTIA publishes a six-step process related to the troubleshooting process.

You will need to understand what they are on your A+ Exam. The six steps are: Identify the problem. Establish a theory of probable cause. Test the theory to determine cause.

Establish a plan of action to resolve the problem and implement the solution. Verify [ ].In fact, Communicating Sequential Processes (CSP) offer an alternative, or at least different slant to Actors and Reactive approaches. CSP is a formal language for describing patterns of interaction in concurrent systems, according to Wikipedia [Wikipedia-3].

CSP’s design suited the transputer, with its pipeline processor.