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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  0, Vol. 6 Issue (100): 70-74    DOI: 10.1631/jzus.2005.AS0070
Computer & Information Science     
The dynamic power management for embedded system with Poisson process
CHEN Tian-zhou, HUANG Jiang-wei, DAI Hong-jun
School of Computer Science, Zhejiang University, Hangzhou 310027, China
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Abstract  The mass of the embedded systems are driven by second batteries, not by wired power supply. So saving energy is one of the main design goals for embedded system. In this paper we present a new technique for modelling and solving the dynamic power management (DPM) problem for embedded systems with complex behavioural characteristics. First we model a power-managed embedded computing system as a controllable Flow Chart. Then we use the Poisson process for optimisation, and give the power management algorithm by the help of Dynamic Voltage Scaling (DVS) technology. At last we built the experimental model using the PXA 255 Processors. The experimental results showed that the proposed technique can achieve more than 12% power saving compared to other existing DPM techniques.

Key words： DPM      Flow Chart      Poisson process     
Received: 15 November 2004     
CLC:  TP303+.3  
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CHEN Tian-zhou
HUANG Jiang-wei
DAI Hong-jun
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CHEN Tian-zhou, HUANG Jiang-wei, DAI Hong-jun. The dynamic power management for embedded system with Poisson process. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 0, 6(100): 70-74.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2005.AS0070     OR     http://www.zjujournals.com/xueshu/zjus-a/Y0/V6/I100/70

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