Diagnosing Multiple Faults

Multi-fault Diagnosis in Dynamic Systems

In this paper, we address the problem of diagnosing multiple faults in dynamically changing systems. Currently used popular techniques such as codebook and active probing suffer from limitations imposed by their ”static”, non-temporal nature, and single-fault assumptions. We propose a very simple, linear-time multifault scheme, capable of tracking system changes and diagnosing multiple faults m...

Applying Frequency Response method for contact Rails Fault Diagnosing in Ungrounded Electrical Railway System

Abstract General faults in regular electrical railways system could be detect by implementing the specific protection functions such as ground fault or sensitive earth fault. Otherwise, in ungrounded electrical railway systems which using both feeding and return contact rail at the same time, fault detection cannot done with above-mentioned function. Due to recent growth in electrical railway ...

An Efficient Diagnosis Algorithm for Multiple Stuck-at Faults

With the increasing complexity of VLSI devices, more complex faults have appeared. Many methods for diagnosing the single stuck-at fault have been studied. Often multiple defects on a failing chip better reflect the reality. So, we propose an efficient diagnosis algorithm for multiple stuck-at faults. By using vectorwise intersections as an important metric of diagnosis, the proposed algorithm ...

A Methodology for Diagnosing Multiple-Simultaneous Faults in Rooftop Air Conditioners

Focusing Strategies for Multiple Fault Diagnosis

Diagnosing multiple faults for a complex system is often very difficult. It requires not only a model which adequately represents the diagnostic aspect of a complex system, but also an efficient diagnostic algorithm that can generate effective test and repair recommendations. One way of developing such an efficient and effective diagnostic algorithm is to focus the computational resource on dis...

Diagnosing Component Interaction Errors from Abstract Event Traces

While discrete event systems have been widely applied for diagnosing distributed communicating systems, existing models may not completely satisfy the requirements for the application of fault identification and repair in software systems. This paper presents a model-based diagnosis approach that identifies possible faults based on generic fault models in abstract traces where events may be ass...