Understanding Iterative Redundancy for Vulnerability-Driven Fault Tolerance Strategy

2014 ◽  
pp. 674-685
Author(s):  
Hui Wang ◽  
Yun Wang ◽  
Ling Zhou ◽  
Kun Jiang
Keyword(s):  
Fault Tolerance ◽  
Tolerance Strategy

MobileRE: A replicas prioritized hybrid fault tolerance strategy for mobile distributed system

2021 ◽  
pp. 102217
Author(s):  
Yu Wu ◽  
Duo Liu ◽  
Xianzhang Chen ◽  
Jinting Ren ◽  
Renping Liu ◽  
...  
Keyword(s):  
Fault Tolerance ◽  
Distributed System ◽  
Tolerance Strategy

A RECONFIGURATION TECHNIQUE FOR RELIABLE VLSI DSP ARRAY PROCESSORS

1992 ◽  
Vol 02 (03) ◽  
pp. 281-304
Author(s):  
SANJAY P. POPLI ◽  
MAGDY A. BAYOUMI ◽  
AKASH TYAGI
Keyword(s):  
Fault Tolerance ◽  
Error Detection ◽  
High Performance ◽  
Interconnection Network ◽  
Digital Signal ◽  
Design Criterion ◽  
Fault Detection And Diagnosis ◽  
Detection Technique ◽  
Concurrent Error Detection ◽  
Tolerance Strategy

Real-time digital signal processing (DSP) applications require high performance parallel architectures that are also reliable. VLSI arrays are good candidates for providing the required high throughput for these applications. These arrays which consist of a number of regularly interconnected processing elements (PEs) will not function correctly in the presence of even a single fault in any of the PEs. Fault tolerance has therefore become a vital design criterion for VLSI arrays. In this paper, a fault tolerance strategy for VLSI arrays is proposed, which significantly improves the reliability of the system. The fault tolerance scheme is composed of two phases: testing and locating faults (fault detection and diagnosis), and reconfiguration. The first phase employs an on-line error detection technique which achieves a compromise between the space and time redundancy approaches. This concurrent error detection technique reduces the rollback time considerably. The reconfiguration phase is achieved by using a global control responsible for changing the states of the switches in the interconnection network. Backtracking is introduced into the algorithm for maximizing the processor utilization, at the same time keeping the complexity of the interconnection network as simple as possible. Finally, a reliability analysis of this scheme using a Markov model and a comparison with some previous schemes are given.

Current Sensor Active Fault Tolerance Control Based on Feedback Gain Reconfiguration

2014 ◽  
Vol 511-512 ◽  
pp. 1012-1016 ◽  
Author(s):  
Zhi Qiang Wang ◽  
Xiao Long Li ◽  
Qing Zhen Wang
Keyword(s):  
Fault Tolerance ◽  
Fault Diagnosis ◽  
Control Strategy ◽  
Active Fault ◽  
State Observer ◽  
Current Sensor ◽  
Feedback Gain ◽  
Maglev Train ◽  
Tolerance Strategy ◽  
Tolerance Control

For the failure of current sensor on maglev train, an active fault tolerance control strategy based on feedback gain reconfiguration is proposed. Fault diagnosis unit based on state observer is designed to detect the output of current sensor, the diagnosis result is used to switch the control strategy. Simulation result indicates that the fault tolerance strategy meets the demands of the system.

Advanced fault tolerance strategy for DC microgrids in mining excavators

2015 ◽  
Author(s):  
Mohsen Ghaffarpour Jahromi ◽  
Galina Mirzaeva ◽  
Steven.D. Mitchell ◽  
David Gay
Keyword(s):  
Fault Tolerance ◽  
Dc Microgrids ◽  
Tolerance Strategy
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