Dependable flight control system by data diversity and self-checking components

Christmansson, J.; Kalbarczyk, Zbigniew; Torin, J.

doi:10.1016/0165-6074(94)90086-8

Cited by 4 publications

(1 citation statement)

References 15 publications

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“…Design diversity also has been applied to software systems [19]. In [23] [24], data diversity was proposed for detecting software faults. In [23], input data in unused input space (input data that are not used during normal execution of the program) are used to detect faults in software, and in [24], diverse data from replicated sensors are used to tolerate faults in software.…”

Section: Previous Workmentioning

confidence: 99%

ED/sup 4/I: error detection by diverse data and duplicated instructions

Mitra

McCluskey

2002

IEEE Trans. Comput.

218

103

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Errors in computing systems can cause abnormal behavior and degrade data integrity and system availability. Errors should be avoided especially in embedded systems for critical applications. However, as the trend in VLSI technologies has been towards smaller feature sizes, lower supply voltages, and higher frequencies, there is a growing concern about temporary errors as well as permanent errors in embedded systems; thus, it is very essential to detect those errors. Software Implemented Hardware Fault Tolerance (SIHFT) is a low-cost alternative to hardware fault tolerance techniques for embedded processors: it does not require any hardware modification of Commercial Off-The-Shelf (COTS) processors. ED 4 I is a SIHFT technique that detects both permanent and temporary errors by executing two "different" programs (with the same functionality) and comparing their outputs. ED 4 I maps each number, x, in the original program into a new number x′, and then transforms the program so that it operates on the new numbers so that the results can be mapped backwards for comparison with the results of the original program. The mapping in the transformation of ED 4 I

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Section: Previous Workmentioning

confidence: 99%

ED/sup 4/I: error detection by diverse data and duplicated instructions

Mitra

McCluskey

2002

IEEE Trans. Comput.

218

103

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Common-mode failures in redundant VLSI systems: a survey

2000

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Redundancy Issues in Software and Hardware Systems: An Overview

Jain

Gupta²

2011

Int. J. Rel. Qual. Saf. Eng.

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The redundancy is a widely spread technology of building computing systems that continue to operate satisfactorily in the presence of faults occurring in hardware and software components. The principle objective of applying redundancy is achieve reliability goals subject to techno-economic constraints. Due to a plenty of applications arising virtually in both industrial and military organizations especially in embedded fault tolerance systems including telecommunication, distributed computer systems, automated manufacturing systems, etc., the reliability and its dependability measures of redundant computer-based systems have become attractive features for the systems designers and production engineers. However, even with the best design of redundant computer-based systems, software and hardware failures may still occur due to many failure mechanisms leading to serious consequences such as huge economic losses, risk to human life, etc. The objective of present survey article is to discuss various key aspects, failure consequences, methodologies of redundant systems along with software and hardware redundancy techniques which have been developed at the reliability engineering level. The methodological aspects which depict the required steps to build a block diagram composed of components in different configurations as well as Markov and non-Markov state transition diagram representing the structural system has been elaborated. Furthermore, we describe the reliability of a specific redundant system and its comparison with a non redundant system to demonstrate the tractability of proposed models and its performance analysis.

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Dependable flight control system by data diversity and self-checking components

Cited by 4 publications

References 15 publications

ED/sup 4/I: error detection by diverse data and duplicated instructions

ED/sup 4/I: error detection by diverse data and duplicated instructions

Common-mode failures in redundant VLSI systems: a survey

Redundancy Issues in Software and Hardware Systems: An Overview

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