Fault tolerance is increasingly important in modern autonomous or industrial robots. The ability to detect and tolerate failures allows robots to e ectively cope with internal failures and continue performing designated tasks without the need for immediate human intervention. To support these fault tolerant capabilities, methods of detecting and isolating failures must be perfected. This thesis...

This paper mainly analyses the fault tolerant capability of a combining classifier that uses a K-voting strategy for integrating binary classifiers. From the point view of fault tolerance, we discuss the influence of the failure of binary classifiers on the final output of the combining classifier, and present a theoretical analysis of combination performance under three fault models. The resul...

The KECCAK cryptographic algorithms widely used in embedded circuits to ensure a high level of security to any systems which require hashing as the integrity checking and random number generation. One of the most efficient cryptanalysis techniques against KECCAK implementation is the fault injection attacks. Until now, only a few fault detection schemes for KECCAK have been presented. In this p...

Inspection policies are essential for many types of systems for which the status (functioning or failed) can be determined only by actual inspection. Two types of inspection error may occur. A functioning system may be incorrectly assessed as having failed or a failed system may be incorrectly assessed as functioning. These errors are designated as Types I and II respectively, and their impact ...

Multiple timing faults, although detectable individually, can hide each other’s faulty behavior making the faulty system indistinguishable from a non-faulty one. A set of graph augmentations are introduced for single timing faults. The fault detection capability of the augmentations is analyzed in the presence of multiple timing faults and shown that multiple occurrences of a class of timing fa...

prompt detection and diagnosis of faults in industrial systems areessential to minimize the production losses, increase the safety of the operatorand the equipment. several techniques are available in the literature to achievethese objectives. this paper presents fuzzy based control and fault detection for a6/4 switched reluctance motor. the fuzzy logic control performs like a classicalproporti...

Active fault detection consists of finding an auxiliary input signal the use of which allows detection of the masked faults using a multi-model framework in continuous or discretetime cases. In this paper, a modified approach to optimal auxiliary signal design in robust fault detection based on a multi-model formulation of healthy and faulty systems is used to study the problem of active fault ...

A method for nondestructive machine fault detection, based on evaluation of acoustic machine signatures, is presented. Various mechanical defects of rotary machines can be reflected in altered acoustic signatures. Such phenomena can be often perceived by skilled human operators who can also explain the type of defect merely based on slightly changed acoustic signature. The proposed method is ba...

Arc fault is one of the primary reasons that cause electrical fire. In power supply line, if arc fault occurs, the currents can not make protective equipments act, the arc fault can not be found easily, so electrical fire comes into being. Based on LabWindows/CVI, experimental studied the on-line arc fault detection system. AT89S51 Single Chip Microcomputer is used as lower computer, based on L...