Fluid Queue Models of Battery Life
Fluid Queue Models of Battery Life
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DOI：
10.1109/mascots.2011.61
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发表时间：
2011-07
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影响因子：
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通讯作者：
Gareth L. Jones;P. Harrison;U. Harder;T. Field
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文献类型：
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作者：
Gareth L. Jones;P. Harrison;U. Harder;T. Field
我们调查了节电模式如何影响随机确定的充电和放电周期下的设备的电池寿命。我们使用一个多状态的流动队列，在某个值设置一个阈值。当功率水平低于阈值(例如，剩余电量的20%)时，进入省电模式，并且放电率降低。给出了电池寿命概率密度函数的拉普拉斯变换表达式，并在特定情况下进行了数值反演。我们发现，通过引入节电阈值可以显著提高电池的寿命。
We investigate how a power-save mode affects the battery life of a device subject to stochastically determined charging and discharging periods. We use a multi-regime fluid queue, imposing a threshold at some value. When the power level falls below the threshold, (for example, 20% of charge remaining) a power-save mode is entered and the rate of discharge decreased. An expression for the Laplace transform of the battery life's probability density function is found and inverted numerically in particular instances. We show the life of battery can be significantly improved by the introduction of the power-saving threshold.