Evaluation of Battery Lifetimes using Inhomogeneous Markov Reward Models

L. Cloth, Boudewijn R.H.M. Haverkort, M.R. Jongerden

Abstract

The usage of mobile devices like cell phones, navigation systems, or laptop computers, is limited by the lifetime of the included batteries. This lifetimes depends naturally on the rate at which energy is consumed, however, it also depends on the usage pattern of the battery. Continuous drawing of a high current results in an excessive drop of residual capacity. However, during intervals with no or very small currents, batteries do recover to a certain extend. We model this complex behaviour with an inhomogeneous Markov reward model. The state-dependent reward rates thereby correspond to the power consumption of the attached device and to the available charge, respectively. We develop new numerical algorithms for the computation of the distribution of the consumed energy and show how different workload patterns inuence the overall lifetime of a battery.
Original languageUndefined
Place of PublicationEnschede
PublisherCentre for Telematics and Information Technology (CTIT)
Number of pages9
StatePublished - 10 Oct 2006

Publication series

NameCTIT Technical Report Series
PublisherCentre for Telematics and Information Technology, University of Twente
No.06-58
ISSN (Print)1381-3625

Fingerprint

Laptop computers
Mobile devices
Electric power utilization

Keywords

  • EWI-6867
  • IR-63419
  • METIS-238673

Cite this

Cloth, L., Haverkort, B. R. H. M., & Jongerden, M. R. (2006). Evaluation of Battery Lifetimes using Inhomogeneous Markov Reward Models. (CTIT Technical Report Series; No. 06-58). Enschede: Centre for Telematics and Information Technology (CTIT).

Cloth, L.; Haverkort, Boudewijn R.H.M.; Jongerden, M.R. / Evaluation of Battery Lifetimes using Inhomogeneous Markov Reward Models.

Enschede : Centre for Telematics and Information Technology (CTIT), 2006. 9 p. (CTIT Technical Report Series; No. 06-58).

Research output: ProfessionalReport

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Cloth, L, Haverkort, BRHM & Jongerden, MR 2006, Evaluation of Battery Lifetimes using Inhomogeneous Markov Reward Models. CTIT Technical Report Series, no. 06-58, Centre for Telematics and Information Technology (CTIT), Enschede.

Evaluation of Battery Lifetimes using Inhomogeneous Markov Reward Models. / Cloth, L.; Haverkort, Boudewijn R.H.M.; Jongerden, M.R.

Enschede : Centre for Telematics and Information Technology (CTIT), 2006. 9 p. (CTIT Technical Report Series; No. 06-58).

Research output: ProfessionalReport

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Cloth L, Haverkort BRHM, Jongerden MR. Evaluation of Battery Lifetimes using Inhomogeneous Markov Reward Models. Enschede: Centre for Telematics and Information Technology (CTIT), 2006. 9 p. (CTIT Technical Report Series; 06-58).