we present an approach to design of fault tolerant computing systems. in this paper, a technique is employed that enable the combination of several codes, in order to obtain flexibility in the design of error correcting codes. code combining techniques are very effective, which one of these codes are turbo codes. the algorithm-based fault tolerance techniques that to detect errors rely on the c...

This article proposes a novel open-circuit switch fault diagnosis method (FDM) for three-level interleaved buck converter (TLIBC) in hydrogen production system based on the water electrolysis process. The control algorithm is suitably modified to ensure same despite fault. TLIBC enables interfacing of power source (i.e., low-carbon energy sources) and electrolyzer while driving terms current or...

In the era of Industry 4.0, idea 3D printed products has gained momentum and is also proving to be beneficial in terms financial time efforts. These are physically built layer-by-layer based on digital Computer Aided Design (CAD) inputs. Nonetheless, still subjected defects due variation properties structure, which leads deterioration quality products. Detection these errors at each layer level...

A tractor gearbox test rig has been used to collect signals from different types of bearing faults. For vibration monitoring accelerometers have been used to obtain vibration data. For fuel-injectors a bearing checker has been used in order to collect acoustic data. One class Self Organizing Maps (OCSOM) are used for detecting faults when exposed to actual data from the system representing a ye...

This paper presents a new Fast Kurtogram Method in the time-frequency domain using novel types of statistical features instead of the kurtosis. For this study, the problem of four classes for Bearing Fault Detection is investigated using various statistical features. This research is conducted in four stages. At first, the stability of each feature for each fault mode is investigated. Then, res...

land use change may influence many natural phenomena and ecological processes, including runoff, soil erosion, sedimentation and soil conditions. decreasing of forest area in the north of iran is one of the critical problems in recent years. the aims of this study are to detect land use changes between 1967 to 2002 using satellite images of land sat 7 etm+ (2002), aerial photos and digital topo...

The use of an appropriate fault detection scheme for hardware implementation of the Advanced Encryption Standard (AES) makes the standard robust to the internal defects and fault attacks. To minimize the overhead cost of the fault detection AES structure, we present a lightweight concurrent fault detection scheme for the composite field realization of the S-box using normal basis. The structure...

Symmetrical nature of mean of electrical signals during normal operating conditions is used in the fault detection task for dependable, robust, and simple fault detector implementation is presented in this work. Every fourth cycle of the instantaneous current signal, the mean is computed and carried into the next cycle to discover nonlinearities in the signal. A fault detection task is complete...

Because of the complexity and diversification of today’s HVAC systems, Fault Detection and Diagnosis (FDD) systems have become necessary to reduce maintenance cost and to provide building energy efficiency, but with a minimum of engineering cost. Based on a generic method of generating Fault Detection (FD) systems from Building Information Models (BIM), we now propose an extension of the underl...

− A new simple method of single soft fault detection and localization of analog parts in embedded electronic systems controlled by microcontrollers is presented. In the pre-testing stage of the method a fault dictionary is created based on the map of localization curves. In the measurement stage the time response to a stimulating square impulse of the analog part is applied to the input of the ...