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http://dx.doi.org/10.6109/jkiice.2014.18.12.2891

Input Data Synchronization Scheme Based on Redundancy for IMA System  

Park, Hong-Youl (Avionics S/W Team, Avionics System Department, Korea Aerospace Industries)
Kim, Ki-Il (Department of Informatics, Engineering Research Institute, Gyeongsang National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.18, no.12, 2014 , pp. 2891-2898 More about this Journal
Abstract
It is feasible to develop a fault tolerant system through module level redundancy on the Integrated Modular Avionics (IMA). However, its great implementation complexity is one of important challenges when asynchronous hardware environment is naturally assumed. To solve this problem, Physically Asynchronous Logically Synchronous (PALS) on IMA has been proposed. But, it has adaptation problem by not addressing specific architecture for IMA system. In the paper, we propose how to synchronize the input data on the IMA system under primary/secondary redundancy architecture by referring to existing PALS. In the proposed scheme, we introduce window frame by considering rate monotonic scheduling and analyze the adequate the synchronization time. Finally, we verify the feasibility of the proposed design pattern through the systematic experiments.
Keywords
Synchronization; IMA; PALS; RMS; Primary/Secondary;
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  • Reference
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