Increasing Safety and Reliability of Roll-back and Roll-forward Lockstep Technique for Use in Real-time Systems

Arm, Jakub; Bradáč, Zdeněk; Štohl, Radek

doi:10.1016/j.ifacol.2016.12.083

Cited by 3 publications

(3 citation statements)

References 13 publications

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“…Finally, [18] shows a fault analysis for state-of-the-art lockstep techniques. The approach employs an FMEA (Fault Mode and Effects Analysis) tool to execute a fault-tree analysis.…”

Section: Lockstep Techniquesmentioning

confidence: 99%

Survey of Lockstep based Mitigation Techniques for Soft Errors in Embedded Systems

Wächter

Kasap

Zhai

et al. 2019

2019 11th Computer Science and Electronic Engineering (CEEC)

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Soft errors are one of the significant design technology challenges at smaller technology nodes and especially in radiation enviro nments. This paper presents a particular class of approaches to provide reliability against radiation-induced soft errors. The paper provides a review of the lockstep mechanism across different levels of design abstraction: processor design, architectural level, and the software level. This work explores techniques providing modifications in the processor pipeline, techniques allied with FPGA dynamic reconfiguration strategies and different types of spatial redundancy.

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“…Finally, [18] shows a fault analysis for state-of-the-art lockstep techniques. The approach employs an FMEA (Fault Mode and Effects Analysis) tool to execute a fault-tree analysis.…”

Section: Lockstep Techniquesmentioning

confidence: 99%

Survey of Lockstep based Mitigation Techniques for Soft Errors in Embedded Systems

Wächter

Kasap

Zhai

et al. 2019

2019 11th Computer Science and Electronic Engineering (CEEC)

View full text Add to dashboard Cite

show abstract

“…Reliability differs from other properties that can be verified in a short period of time on one object. Rather, it refers to the property of an object to retain the values of the parameters characterising the object's performance of specific functions over time and within the specified limits [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Quality assessment of reliability engineering systems

Kondrashova

2023

E3S Web Conf.

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Quality and quality assessment are key indicators in many fields. There exist various interpretations of the quality concept, such as technical, legal, and economic definitions. The fundamental aspect of technical systems is the quality problem, and there are different ways to assess quality. This paper examines the relationship between quality and reliability that forms the basis of the safety property and offers a quality assessment that relies on system reliability characteristics using a mathematical methods. Reliability is influenced by random concepts and events, such as the moment of failure. Costly long-term reliability tests on a large number of products are required to determine whether a particular object is suitable. As an example, the reliability of the redundant recoverable system is considered. Reliability influences the security property. Failure of an object decreases the values of the remaining properties dramatically. The theory of random processes, including the use of the theory of Markov processes, is a rational mathematical technic for solving reliability problem. Quality assessment tasks can also be attributed to management tasks, which are becoming increasingly popular in various areas. As an example, the reliability of the redundant recoverable system is considered. The paper uses the generally accepted concepts of the probability, reliability function, failure rate, etc.

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“…Reliability is related to random concepts and events, such as the moment of failure. Costly and time-consuming technical readiness tests on a large number of products are required to properly assess a system's technical readiness [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Optimal maintenance tasks taking into account cost indicators

Kondsrashova

2023

E3S Web Conf.

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The reliability of technical systems plays a key role in ensuring their efficient operation over time. This article discusses the importance of reliability in maintaining preset parameters of the functioning of a system and its dependence on operating conditions. Maintenance is done to maintain the reliability of a system and control its functionality. The authors propose methods for selecting quality indicators and the optimal frequency of preventive maintenance and emphasise the importance of considering cost aspects when making decisions on maintenance. In conclusion, the article offers a brief algorithm for quality control of technical systems while placing an emphasis on system safety and economic efficiency. The study demonstrates the need to develop and apply new cost-based analysis methods to determine optimal maintenance strategies for technical systems. Overall, the article provides recommendations for improving maintenance operations and increasing the reliability of technical systems.

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Increasing Safety and Reliability of Roll-back and Roll-forward Lockstep Technique for Use in Real-time Systems

Cited by 3 publications

References 13 publications

Survey of Lockstep based Mitigation Techniques for Soft Errors in Embedded Systems

Survey of Lockstep based Mitigation Techniques for Soft Errors in Embedded Systems

Quality assessment of reliability engineering systems

Optimal maintenance tasks taking into account cost indicators

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