Realization of dynamical electronic systems

Elena Hammari, Francky Catthoor, Leonidas Iasemidis, Per Gunnar Kjeldsberg, Jos Huisken, Konstantinos Tsakalis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This article gives an overview of a methodology for building dynamical electronic systems. As an example a part of a system for epileptic seizure prediction is used, which monitors EEG signals and continuously calculates the largest short-term Lyapunov exponents. In dynamical electronic systems, the cost of exploitation, for instance energy consumption, may vary substantially with the values of input signals. In addition, the functions describing the variations are not known at the time the system is designed. As a result, the architecture of the system must accommodate for the worst case exploitation costs, which rapidly exceed the available resources (for instance battery life) when accumulated over time. The presented system scenario methodology solves these challenges by identifying at design time groups of possible exploitation costs, called system scenarios, and implementing a mechanism to detect system scenarios at run time and re-configure the system to cost-efficiently accommodate them. During reconfiguration, the optimized system architecture settings for the active system scenario are selected and the total exploitation cost is reduced. When the dynamic behavior is due to input data variables with a large number of possible values, current techniques for bottom-up scenario identification and detection becomes too complex. A new top-down technique, based on polygonal regions, is presented in this paper. The results for the example system indicate that with 10 system scenarios the average energy consumption of the system can be reduced by 28% and brought within 5% of the theoretically best solution.

Original languageEnglish (US)
Title of host publicationEPJ Web of Conferences
PublisherEDP Sciences
Volume70
DOIs
StatePublished - 2014
Event1st International Conference on New Frontiers in Physics, ICFP 2012 - Kolymbari, Crete, Greece
Duration: Jun 10 2012Jun 16 2012

Other

Other1st International Conference on New Frontiers in Physics, ICFP 2012
CountryGreece
CityKolymbari, Crete
Period6/10/126/16/12

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Hammari, E., Catthoor, F., Iasemidis, L., Gunnar Kjeldsberg, P., Huisken, J., & Tsakalis, K. (2014). Realization of dynamical electronic systems. In EPJ Web of Conferences (Vol. 70). [00081] EDP Sciences. https://doi.org/10.1051/epjconf/20147000081