Fault Tolerant Computer System for the A129 Helicopter

1 March 1985

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Aerospace and Electronic Systems

Vol. AES-21 (2) , 220-229
https://doi.org/10.1109/taes.1985.310619

Abstract

The A129 integrated multiplex system (IMS) is a highly reliable computer system designed to implement automatic flight control, navigation, system monitoring, and other flight-critical and mission related tasks. The reliability of the IMS has been achieved through the development of hardware-implemented and software implemented fault-tolerance techniques which exploit several unique architectural and hardware characteristics. This paper describes the fault-tolerance design philosophy, the IMS architecture, the fault detection and fault recovery techniques, and the hardware and software structures. Also presented is a Markov reliability analysis which was used to quantify the reliability of the system.

Keywords

This publication has 2 references indexed in Scilit:

Fault-Tolerant Software
IEEE Transactions on Reliability, 1979
SIFT: Design and analysis of a fault-tolerant computer for aircraft control
Proceedings of the IEEE, 1978