Abstract: The existing software energy consumption analysis methods mainly research the energy consumption on the algorithm level and the instruction level,rarely on the software architecture level.From a software architecture for embedded systems,value and time tags are added on the basis of traditional Petri nets,so as to establish a Value Time Petri Net(VTPN).The software component and linker energy consumption models are established through VTPN to analyze the system energy consumption,and the minimum energy consumption path algorithm is proposed to reduce the system energy consumption.Experimental results show that the actual energy consumption results obatined by using the proposed models are close to the expected results.The model can reduce system overall energy consumption and improve resource utilization.

Key words: embedded system, software energy consumption, Petri net, energy consumption model, state reachability graph

摘要： 现有软件能耗分析方法主要研究算法级和指令级能耗,对于软件体系结构级的能耗研究较少。为此,从嵌入式系统的软件体系结构出发,在传统Petri网的基础上加入价格和时间标签,建立价格时间Petri网。通过价格时间Petri网构建软件构件和连接子能耗模型分析系统软件能耗,并提出最小能耗可达路径算法降低系统执行能耗。实验结果表明,该模型测得的实际能耗结果与预期结果误差较小,并且能降低系统整体能耗,提高资源利用率。

关键词: 嵌入式系统, 软件能耗, Petri网, 能耗模, 状态可达图

CLC Number: 

• TP301