Departmental Papers (CIS)

Date of this Version

10-2006

Document Type

Conference Paper

Abstract

Bridging the gap between model-based design and platformbased implementation is one of the critical challenges for embedded software systems. In the context of embedded control systems that interact with an environment, a variety of errors due to quantization, delays, and scheduling policies may generate executable code that does not faithfully implement the model-based design. In this paper, we show that the performance gap between the model-level semantics of proportional-integral-derivative (PID) controllers and their implementation-level semantics can be rigorously quantified if the controller implementation is executed on a predictable time-triggered architecture. Our technical approach uses lifting techniques for periodic, time-varying linear systems in order to compute the exact error between the model semantics and the execution semantics. Explicitly computing the impact of the implementation on overall system performance allows us to compare and partially order different implementations with various scheduling or timing characteristics.

Subject Area

CPS Embedded Control, CPS Real-Time

Publication Source

Proceedings of the 6th ACM & IEEE International Conference on Embedded Software (EMSOFT '06)

Start Page

2

Last Page

11

DOI

10.1145/1176887.1176890

Copyright/Permission Statement

© ACM 2006. This is the author's version of the work. It is posted here for your personal use. Not for redistribution. The definitive Version of Record was published in Proceedings of the 6th ACM & IEEE International Conference on Embedded Software (EMSOFT '06), http://dx.doi.org/10.1145/1176887.1176890.

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Date Posted: 26 June 2012