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A novel fault-tolerant scheduling algorithm for periodic tasks of Distributed control systems

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4 Author(s)
Liu Huai ; Sch. of Electr. & Autom. Eng., Nanjing Normal Univ., Nanjing, China ; Lin Qiushi ; Huang Jianxin ; Ji Tongzhou

For periodic real-time task in Distributed control system, a novel fault-tolerant scheduling algorithm is presented based on duplication technique. The algorithm fuses active backup-copy technique and passive backup-copy technique and overlapping backup-copy technique in order to adapt task demand in different case. The method for judging the schedulability of task set is given. The heuristic task assigning algorithm based on first-fit method and minimizing ldquoworst case completion timerdquo is given. Finally, simulation experiments are carried out to prove the feasibility and effectiveness of the algorithm.

Published in:

Control and Decision Conference, 2009. CCDC '09. Chinese

Date of Conference:

17-19 June 2009