A Solution to Single Point of Failure Using Voter Replication and Disagreement Detection

Author

Patooghy, A. ; Miremadi, S.Gh. ; Javadtalab, A. ; Fazeli, M. ; Farazmand, N.

Author_Institution

Dept. of Comput. Eng., Sharif Univ. of Technol., Tehran

fYear

2006

fDate

Sept. 29 2006-Oct. 1 2006

Firstpage

171

Lastpage

176

Abstract

This paper suggests a method, called distributed voting, to overcome the problem of the single point of failure in a TMR system used in robotics and industrial control applications. It uses time redundancy and is based on TMR with disagreement detector feature. This method masks faults occurring in the voter where the TMR system can continue its function properly. The method has been evaluated by injecting faults into Vertex2Pro and Vertex4 Xilinx FPGAs An analytical evolution is also performed. The results of both evaluation approaches show that the proposed method can improve the reliability and the mean time to failure (MTTF) of a TMR system by at least a factor of (2-R_V (t)) where R_V(t) is the reliability of the voter

Keywords

fault tolerant computing; redundancy; TMR system; Vertex2Pro FPGA; Vertex4 Xilinx FPGA; disagreement detection; distributed voting; fault masking; triple modular redundancy; voter replication; Application software; Computer vision; Control systems; Detectors; Field programmable gate arrays; Industrial control; Java; Redundancy; Service robots; Voting;

fLanguage

English

Publisher

ieee

Conference_Titel

Dependable, Autonomic and Secure Computing, 2nd IEEE International Symposium on

Conference_Location

Indianapolis, IN

Print_ISBN

0-7695-2539-3

Type

conf

DOI

10.1109/DASC.2006.15

Filename

4030880