| 引用本文: | 曹哲,尤政.超时策略动态阈值的阈值选择影响因素[J].哈尔滨工业大学学报,2013,45(6):119.DOI:10.11918/j.issn.0367-6234.2013.06.021 |
| CAO Zhe,YOU Zheng
.The influencing factor of threshold selection in dynamic threshold of timeout policies[J].Journal of Harbin Institute of Technology,2013,45(6):119.DOI:10.11918/j.issn.0367-6234.2013.06.021 |
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| 摘要: |
| 为在能源有限的情况下增加系统运行时间,从动态电源管理的超时策略角度出发,探讨了超时策略中阈值选择的影响因素．在国内外动态电源管理策略的研究基础上,分析了超时策略中动态阈值策略与固定阈值策略的原理,完成了对现有的动态阈值策略的阈值选择影响因素的分析,得出了系统进入休眠与唤醒的能量消耗、电池放电电压大小、系统具体的应用环境三方面对阈值选择产生影响．证实了综合考虑阈值的三方面影响因素是找到最优阈值的捷径． |
| 关键词: 动态电源管理 超时策略 动态阈值 影响因素 阈值选择 |
| DOI：10.11918/j.issn.0367-6234.2013.06.021 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(50905096). |
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| The influencing factor of threshold selection in dynamic threshold of timeout policies |
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CAO Zhe, YOU Zheng
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(State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, 100084 Beijing, China)
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| Abstract: |
| To increase system uptime with limited energy, this paper discussed the influencing factors of threshold selection in timeout policies from the point of view of timeout policies in dynamic power management. After investigating domestic and overseas principles of dynamic power management strategies, analyzing principles of dynamic and fixed threshold policies in timeout policies and completing analyses of influencing factors of threshold selection in the present dynamic threshold policies, the paper drew a conclusion of the following three influencing factors on threshold selections, which were energy consumption during hibernating and awakening of system, batteries′ discharge voltage and system′s application environment, respectively. At last, this paper confirmed that comprehensive consideration on threshold influencing factors would be a shortcut in finding optimal threshold. |
| Key words: dynamic power management timeout policy dynamic threshold influencing factor threshold selection
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