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《中国工程科学》 >> 2008年 第10卷 第2期

考虑电池放电特性的动态电压调节策略研究

东南大学国家ASIC系统工程中心,南京 210096

收稿日期 :2007-05-12 修回日期 :2007-06-14 发布日期 :2008-01-30 17:01:07.000

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摘要

电池寿命是移动设备的关键设计参数之一。由于电池容量消耗的非线性和与负载轮廓相关的特性,最大化电池寿命是个相当困难的问题。研究了在考虑电池放电特性情况下动态电压调节策略(DVS, dynamic voltage scaling)最小化电池容量消耗的问题。针对现有考虑电池 放电特性的DVS策略中空闲时间分配不合理的缺陷,提出了空闲时间分布调整过程,用于优化空闲时间分布从而减少电池容量消耗,并分析了该过程对任务调度的影响。实验结果表明对现有考虑电池放电特性的DVS策略形成的任务调度进行空闲

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