Scheduling battery usage in mobile systems
Scheduling battery usage in mobile systems
复制标题
安排移动系统中的电池使用
DOI：
10.1109/tvlsi.2003.817555
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
R. Scarsi
中科院分区：
文献类型：
--
作者：
L. Benini;A. Macii;E. Macii;M. Poncino;R. Scarsi
在最新一代的电子设备中，多电池电源的使用正变得普遍。经济和制造限制是这种选择的基础。不幸的是，分区电池子系统不能提供与具有相同总容量的单片电池相同的电荷量。在本文中，我们定义了电池调度的概念，我们研究了几种政策，解决问题的最佳充电交付，我们研究了这种政策与不同配置的电池子系统的关系。实验结果表明，对于不同类型的当前工作负载，选择适当的调度可以使系统寿命接近理论上限的1%，即相同容量的单片电源。
The use of multibattery power supplies is becoming common practice in electronic appliances of the latest generations. Economical and manufacturing constraints are at the basis of this choice. Unfortunately, a partitioned battery subsystem is not able to deliver the same amount of charge as a monolithic battery with the same total capacity. In this paper, we define the concept of battery scheduling, we investigate several policies for solving the problem of optimal charge delivery, and we study the relationship of such policies with different configurations of the battery subsystem. Experimental results, obtained for different kinds of current workloads, demonstrate that the choice of the proper scheduling can make system lifetime as close as 1% of the theoretical upper bound, that is, a monolithic power supply of equal capacity.