amiam_EMSOFT13

Stability-Aware Analysis and Design of Embedded Control Systems

Amir Aminifar
 
Petru Eles Author homepage
Zebo Peng Author homepage
 
Anton Cervin

International Conference on Embedded Software (EMSOFT 2013), Montreal, Canada, September 29 - October 4, 2013.

ABSTRACT
Many embedded systems comprise several controllers sharing available resources. It is well known that such resource sharing leads to complex timing behavior that can jeopardize stability of control applications, if it is not properly taken into account in the design process, e.g., mapping and scheduling. As opposed to hard real-time systems where meeting the deadline is a critical require- ment, control applications do not enforce hard deadlines. Therefore, the traditional real-time analysis approaches are not readily applicable to control applications. Rather, in the context of control applications, stability is often the main requirement to be guaranteed, and can be expressed as the amount of delay and jitter a control application can tolerate. The nominal delay and response-time jitter can be regarded as the two main factors which relate the real-time aspects of a system to control performance and stability. Therefore, it is important to analyze the impact of variations in scheduling parameters, i.e., period and priority, on the nominal delay and response-time jitter and, ultimately, on stability. Based on such an analysis, we address, in this paper, priority assignment and sensitivity analysis problems for control applications considering sta- bility as the main requirement.


Related files:
amiam_EMSOFT13.pdfAdobe Acrobat portable document


[AEPC13] Amir Aminifar, Petru Eles, Zebo Peng, Anton Cervin, "Stability-Aware Analysis and Design of Embedded Control Systems", International Conference on Embedded Software (EMSOFT 2013), Montreal, Canada, September 29 - October 4, 2013.
( ! ) perl script by Giovanni Squillero with modifications from Gert Jervan   (v3.1, p5.2, September-2002-)
Last modified on Monday December 04, 2006 by Gert Jervan