Maximizing system lifetime by battery scheduling
conference paper
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.
Topics
TNO Identifier
954054
Repository link
ISBN
9781424444
Publisher
IEEE
Article nr.
5270351
Source title
Proceedings of the International Conference on Dependable Systems and Networks, 2009 IEEE/IFIP International Conference on Dependable Systems and Networks, DSN 2009, 29 June 2009 through 2 July 2009
Pages
63-72
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