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This paper proposes an approach for improving the diagnostic capability of a test-set used in the initial phases of the diagnosis process, when the system is quickly tested with a set of vectors aimed at making the fault observable with the smallest number of vectors. The selection policy identifies the optimal test set with respect to both minimal cardinality and maximum coverage, exploiting an ILP...
Fault diagnosis is the task of identifying a faulty component in a complex system using data collecting from a test section. Diagnostic resolution, that is the ability to discriminate a faulty component in a set of possible candidates, is a property that the system model must expose to provide accuracy and robustness in the diagnosis. Such a property depends on the selection of an appropriate test...
Incremental Automatic Functional Fault Detective is an incremental methodology based on a Bayesian Belief Network for the identification of the faulty component in a complex system, using data collected from a test session. Incremental Automatic Functional Fault Detective reduces time, cost and efforts during the diagnostic phase by implementing a step-by-step selection of the tests to be executed...
iAF2D (incremental Automatic Functional Fault Detective) is a methodology for the identification of the faulty component in a complex system using data collected from a test session. It is an incremental approach based on a Bayesian Belief Network, where the model of the system under analysis is extracted from a faulty signature description. iAF2D reduces time, cost and efforts during the diagnostic...
This paper presents a methodology for an incremental approach to functional fault diagnosis of complex boards, used to identify candidate failing components based on the results of the executed tests, once a misbehavior has been detected but not localized. The proposal aims at reducing both time and effort during the diagnostic phase, by executing a subset of the available tests, analyzing the achieved...
Our group is currently involved in the proposal of a Gamma Ray Burst Monitor for the LOBSTER experiment, approved by ESA for a Phase A study for a future flight (2009) aboard the International Space Station (ISS). The detector will be based on CZT array modules, cooled along with its front-end electronics, at a temperature not lower than 250 K, using Peltier effect or passive cooling systems. To improve...
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