Maximizing System Lifetime by Battery Scheduling


Jongerden, M.R. and Haverkort, B.R.H.M. and Bohnenkamp, H.C. and Katoen, J.P. (2009) Maximizing System Lifetime by Battery Scheduling. In: 39th Annual IEEE/IFIP International Conference on Dependable Systems and Networks, DSN 2009, 29 jun - 2 jul 2009, Estoril, Portugal.

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Abstract:The use of mobile devices is limited by the battery lifetime. Some devices have the option to connect an extra battery, or to use smart battery-packs with multiple cells to extend the lifetime. In these cases, scheduling the batteries over the load to exploit recovery properties usually extends the system lifetime. Straightforward scheduling schemes, like round robin or choosing the best battery available, already provide a big improvement compared to a sequential discharge of the batteries. In this paper we compare these scheduling schemes with the optimal scheduling scheme produced with a priced-timed automaton battery model (implemented and evaluated in Uppaal Cora). We see that in some cases the results of the simple scheduling schemes are close to optimal. However, the optimal schedules also clearly show that there is still room for improving the battery lifetimes.
Item Type:Conference or Workshop Item
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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