基于Android嵌入式系统低功耗方法研究  

On low-power consumption in Android embedded systems

作　　者：夏辉[1] 

机构地区：[1]沈阳师范大学科信软件学院,沈阳110034

出　　处：《沈阳师范大学学报（自然科学版）》2015年第2期288-291,共4页Journal of Shenyang Normal University:Natural Science Edition

基　　金：辽宁省教育厅高等学校科学研究项目(L2014441);辽宁省自然科学基金资助项目(2014020118)

摘　　要：阐述了如何减少Android手机功耗,从而做到节电节能效果。不仅从硬件方面阐述减少功耗的方法,而且从最重要的软件程序设计入手来说明减少耗能的方法。由于嵌入式系统能耗与处理器工作频率和电压有关,通过Android的一个简单计算PI值的实验,分别使用单线程和双线程方法编程,同时利用Intel的能耗检验工具GPA来观察程序运行中的处理器电压和频率的变化情况,从而比较耗能在两种不同编程方式下的变化。从运行结果明显看出,使用双线程法编程能耗分析图像中检测出来处理器的频率和电压大大减少,从而使处理器能耗也大大减少。实验充分证明了可以利用优化的编程进行嵌入式系统功耗的优化。This article mainly expounds how to reduce the power consumption in Android mobile phone, so as to achieve energy saving effect. This article explains the method of reducing power consumption not only from the aspects of hardware, but also from the software programming to reduce energy consumption. Because the embedded system energy consumption is strongly associated with processor working frequency and voltage, a simple calculation of PI value experiment based on the Android was put forward, by using single thread programming and the double thread method respectively. Using Intel test tools GPA to see how the program runs and how voltage and frequency of the processors are in the changes of applications process to compare the change of energy consumption in two different programming condition. From the running results I can see that the processor＇s frequency and voltage is reduced greatly by using double thread programming in GPA images. The experiment proves that we can take advantage of the optimization programming to reduce the power consumption of embedded system.

关 键 词：节能减排 ANDROID 凌动处理器 功耗 GPA 

分 类 号：TN929[电子电信—通信与信息系统]