Detecting Instrument Malfunctions in Control Systems
- 1 July 1975
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Aerospace and Electronic Systems
- Vol. AES-11 (4) , 465-473
- https://doi.org/10.1109/taes.1975.308108
Abstract
A scheme for automatically detecting incipient failures in the feedback sensors (or instruments) of control systems is described. The feasibility of the scheme is investigated by applying it to a simplified version (fourth order) of the flight control system for a hydrofoil boat. A single set of inertial instruments is used to provide the feedback signals; the redundancy which is normally obtained by multiple instrument sets is obtained here, artificially, by a subsystem of multiple Luenberger observers and logic circuits. Tests indicate that scale factor errors, errors due to threshold effects, and bias errors in the instruments are detected as they occur. The tests also indicate further analytical work which should be done to explore the limitations of the basic scheme.Keywords
This publication has 3 references indexed in Scilit:
- A simple generalization of Luenberger method for pole assignmentProceedings of the IEEE, 1974
- An introduction to observersIEEE Transactions on Automatic Control, 1971
- On pole assignment in multi-input controllable linear systemsIEEE Transactions on Automatic Control, 1967