A method of analogue‐digital multiple fault diagnosis
作者:
David Reisig,
Raymond Decarlo,
期刊:
International Journal of Circuit Theory and Applications
(WILEY Available online 1987)
卷期:
Volume 15,
issue 1
页码: 1-22
ISSN:0098-9886
年代: 1987
DOI:10.1002/cta.4490150102
出版商: Wiley Subscription Services, Inc., A Wiley Company
数据来源: WILEY
摘要:
AbstractThis paper develops an algorithm for multiple fault diagnosis of analogue‐digital circuits. By sequentially partitioning the devices into those ‘assumed good’ and those ‘under test’, it is possible to develop a set of fault diagnosis equations which account for the special nature of digital components. A modified Newton‐Raphson solution is then described which incorporates a digital state hypothesis testing scheme in the solution of the fault diagnosis equations for each partition. After solving for the input‐output characteristics of the devices under test, a Boolean decision algorithm is used to analyse the test results of each partition and thus sequentially arrive at the set of faulty elements. A generic condition for diagnosability in terms of the circuit topology is given. Two examples are included to illustrate
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