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Conference Papers Year : 2015

Loosely Time-Triggered Architectures: Improvements and Comparisons

Abstract

Loosely Time-Triggered Architectures (LTTAs) are a proposal for constructing distributed embedded control systems. They build on the quasi-periodic architecture, where computing units execute 'almost periodically', by adding a thin layer of middleware that facilitates the implementation of synchronous applications. In this paper, we show how the deployment of a synchronous application on a quasi-periodic architecture can be modeled using a synchronous formalism. Then we detail two protocols, Back-Pressure LTTA, reminiscent of elastic circuits, and Time-Based LTTA, based on waiting. Compared to previous work, we present controller models that can be compiled for execution and a simplified version of the Time-Based protocol. We also compare the LTTA approach with architectures based on clock synchronization.
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Dates and versions

hal-01243005 , version 1 (14-12-2015)

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Guillaume Baudart, Timothy Bourke, Albert Benveniste. Loosely Time-Triggered Architectures: Improvements and Comparisons. Proceedings of the 12th International Conference on Embedded Software (EMSOFT '15), Oct 2015, Amsterdam, Netherlands. ⟨10.1109/EMSOFT.2015.7318263⟩. ⟨hal-01243005⟩
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