ORTEGA: An efficient and flexible online fault tolerance architecture for real-time control systems

Xue Liu; Qixin Wang; Sathish Gopalakrishnan; Wenbo He; Lui Sha; Hui Ding; Kihwal Lee

doi:10.1109/TII.2008.2010774

ORTEGA: An efficient and flexible online fault tolerance architecture for real-time control systems

Xue Liu, Qixin Wang, Sathish Gopalakrishnan, Wenbo He, Lui Sha, Hui Ding, Kihwal Lee

Research output: Journal article publication › Journal article › Academic research › peer-review

24 Citations (Scopus)

Abstract

Fault tolerance is an important aspect in real-time computing. In real-time control systems, tasks could be faulty due to various reasons. Faulty tasks may compromise the performance and safety of the whole system and even cause disastrous consequences. In this paper, we describe On-demand Real-TimE GuArd (ORTEGA), a new software fault tolerance architecture for real-time control systems. ORTEGA has high fault coverage and reliability. Compared with existing real-time fault tolerance architectures, such as Simplex, ORTEGA allows more efficient resource utilizations and enhances flexibility. These advantages are achieved through the on-demand detection and recovery of faulty tasks. ORTEGA is applicable to most industrial control applications where both efficient resource usage and high fault coverage are desired.

Original language	English
Article number	4753900
Pages (from-to)	213-224
Number of pages	12
Journal	IEEE Transactions on Industrial Informatics
Volume	4
Issue number	4
DOIs	https://doi.org/10.1109/TII.2008.2010774
Publication status	Published - 1 Nov 2008

Keywords

Industrial control
Real-time and embedded systems
Reliability and robustness

ASJC Scopus subject areas

Control and Systems Engineering
Information Systems
Computer Science Applications
Electrical and Electronic Engineering

More information

10.1109/TII.2008.2010774

Cite this

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AU - Sha, Lui

AU - Ding, Hui

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ORTEGA: An efficient and flexible online fault tolerance architecture for real-time control systems

Abstract

Keywords

ASJC Scopus subject areas

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