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Aerospace 2018, 5(1), 15; doi:10.3390/aerospace5010015

Fully-Deterministic Execution of IEC-61499 Models for Distributed Avionics Applications

School of Science and Engineering, Teesside University, Middlesbrough TS1 3BX, UK
Received: 31 October 2017 / Revised: 28 December 2017 / Accepted: 22 January 2018 / Published: 3 February 2018
(This article belongs to the Special Issue Challenges in Reliability Analysis of Aerospace Electronics)

Abstract

The development of time-critical Distributed Avionics Applications (DAAs) pushes beyond the limit of existing modeling methodologies to design dependable systems. Aerospace and industrial automation entail high-integrity applications where execution time is essential for dependability. This tempts us to use modeling technologies from one domain in another. The challenge is to demonstrate that they can be effectively used across domains whilst assuring temporally dependable applications. This paper shows that an IEC61499-modeled DAA can satisfy temporal dependability requirements as to end-to-end flow latency when it is properly scheduled and realized in a fully deterministic avionics platform that entails Integrated Modular Avionics (IMA) computation along with Time-Triggered Protocol (TTP) communication. Outcomes from the execution design of an IEC61499-based DAA model for an IMA-TTP platform are used to check runtime correctness through DAA control stability. IEC 61499 is a modeling standard for industrial automation, and it is meant to facilitate distribution and reconfiguration of applications. The DAA case study is a Distributed Fluid Control System (DFCS) for the Airbus-A380 fuel system. Latency analysis results from timing metrics as well as closed-loop control simulation results are presented. Experimental outcomes suggest that an IEC61499-based DFCS model can achieve desired runtime latency for temporal dependability when executed in an IMA-TTP platform. Concluding remarks and future research direction are also discussed. View Full-Text
Keywords: Integrated Modular Avionics; Time-Triggered Protocol; IEC 61499; runtime correctness; time-critical avionics applications Integrated Modular Avionics; Time-Triggered Protocol; IEC 61499; runtime correctness; time-critical avionics applications
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Insaurralde, C.C. Fully-Deterministic Execution of IEC-61499 Models for Distributed Avionics Applications. Aerospace 2018, 5, 15.

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