You are required to read and agree to the below before accessing a full-text version of an article in the IDE article repository.

The full-text document you are about to access is subject to national and international copyright laws. In most cases (but not necessarily all) the consequence is that personal use is allowed given that the copyright owner is duly acknowledged and respected. All other use (typically) require an explicit permission (often in writing) by the copyright owner.

For the reports in this repository we specifically note that

  • the use of articles under IEEE copyright is governed by the IEEE copyright policy (available at http://www.ieee.org/web/publications/rights/copyrightpolicy.html)
  • the use of articles under ACM copyright is governed by the ACM copyright policy (available at http://www.acm.org/pubs/copyright_policy/)
  • technical reports and other articles issued by M‰lardalen University is free for personal use. For other use, the explicit consent of the authors is required
  • in other cases, please contact the copyright owner for detailed information

By accepting I agree to acknowledge and respect the rights of the copyright owner of the document I am about to access.

If you are in doubt, feel free to contact webmaster@ide.mdh.se

Managing Redundancy in CAN-based Networks Supporting N-Version Programming

Authors:

Julián Proenza , José Miro-Julia , Hans Hansson

Note:

Accepted for publication

Research group:

Real-Time Systems Design

Publication Type:

Journal article

Venue:

Computer Standards & Interfaces

Publisher:

Elsevier

Abstract

Software is a major source of reliability degradation in dependable systems. One of the classical remedies is to provide software fault-tolerance by using NVersion Programming (NVP). However, due to requirements on special hardware and the need for changes and additions at all levels of the system, NVP solutions are costly, and have only been used in special cases. In a previous work, a low-cost architecture for NVP execution was developed. The key features of this architecture are the use of off-the-shelf components and that the fault-tolerance functionality, including voting, error detection, fault-masking, consistency management, and recovery, is moved into a separate redundancy management circuitry (one for each redundant computing node). In this article we present an improved design of that architecture, specifically resolving some potential inconsistencies that were not treated in detail in the original design. In particular, we present novel techniques for enforcing replica determinism and a method for reintegration of the redundancy management circuitry after a transient failure. Our improved architecture is based on using the Controller Area Network (CAN). This has several benefits, including low-cost, and that the CAN data consistency allows us to simplify the mechanisms for replica determinism and reintegration. Although initially developed for NVP, our redundancy management circuitry also supports other software replication techniques, such as active replication.

Bibtex

@article{Proenza1156,
author = {Juli{\'a}n Proenza and Jos{\'e} Miro-Julia and Hans Hansson},
title = {Managing Redundancy in CAN-based Networks Supporting N-Version Programming},
note = {Accepted for publication},
month = {December},
year = {2008},
journal = {Computer Standards {\&} Interfaces},
publisher = {Elsevier},
url = {http://www.es.mdu.se/publications/1156-}
}