Method for monitoring faults in a control computer using band-limiting filters

1 January 1990

journal article
Published by Institution of Engineering and Technology (IET) in IEE Proceedings D Control Theory and Applications

Vol. 137 (2) , 97-103
https://doi.org/10.1049/ip-d.1990.0012

Abstract

Band-limiting filters can be employed to monitor the propagation of signals, originating as external inputs of known structure, through dynamic systems. By generating and comparing band-limited signals at different points in a control system, faults in system behaviour may be detected. Earlier work has described the use of this technique for fault detection in complete closed-loop systems, and, in the paper, a similar approach is applied to monitoring hardware or software faults in a control computer.

Keywords

CONTROL COMPUTER
BAND-LIMITED SIGNAL COMPARISON
COMPUTER TESTING
BAND-LIMITED SIGNAL GENERATION
BAND-LIMITING FILTERS
EXTERNAL INPUTS
SIGNAL PROPAGATION
COMPUTER MAINTENANCE
DYNAMIC SYSTEMS
COMPLETE CLOSED-LOOP SYSTEMS
SOFTWARE FAULT MONITORING
HARDWARE FAULT MONITORING

This publication has 1 reference indexed in Scilit:

Science and Information Theory
Physics Today, 1962