DocumentCode :
3249006
Title :
A DSP-based active sensor interface performing on-line fault detection and identification
Author :
Hassapis, George
Author_Institution :
Dept. of Electr. Eng., Aristotelian Univ., Thessaloniki, Greece
fYear :
1989
fDate :
8-12 May 1989
Abstract :
Process-measuring instruments generating output signals in the form of a frequency are discussed. By applying a specific signal-analysis technique, which can be implemented by a mixture of hardware and software enhancements on a digital signal processor (DSP), it becomes possible to determine abnormal instrument operation and detect a faulty instrument component within minutes after its failure. The technique used comprises the transformation of the received signal to a train of unit pulses and its spectral analysis by the zero-crossing method. Although this technique presents a limited fault-discrimination ability, it can trace down quickly and economically the causes of major faults, as demonstrated by an application example
Keywords :
computerised instrumentation; computerised signal processing; error detection; DSP-based; digital signal processor; fault detection; identification; sensor interface; signal-analysis technique; Application software; Circuit faults; Computer interfaces; Computerized instrumentation; Fault detection; Fault diagnosis; Frequency; Pulse measurements; Signal processing; Signal processing algorithms;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
CompEuro '89., 'VLSI and Computer Peripherals. VLSI and Microelectronic Applications in Intelligent Peripherals and their Interconnection Networks', Proceedings.
Conference_Location :
Hamburg
Print_ISBN :
0-8186-1940-6
Type :
conf
DOI :
10.1109/CMPEUR.1989.93424
Filename :
93424
Link To Document :
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