Realistic and Repeatable Emulation of Energy Harvesting Environments
Realistic and Repeatable Emulation of Energy Harvesting Environments
复制标题
能量收集环境的真实且可重复的仿真
DOI：
10.1145/3064839
复制
发表时间：
2017
影响因子：
4.1
通讯作者：
Sorber, Jacob
中科院分区：
文献类型：
--
作者：
Hester, Josiah;Sitanayah, Lanny;Scott, Timothy;Sorber, Jacob
从环境中收集能量使得可以长时间部署微型传感器，很少或不需要维护;然而，这种免费的能量使得测试和实验变得困难。环境能源变化很大，通常很难预测，也很难在实验室测试中重现。这些变化也是行为依赖的一个因素，使应用工程师无法进行算法或硬件配置之间的简单比较，使用传统的测试approaches.In这篇文章中，我们描述了Ekho的设计和评估，仿真器能够记录能量收集条件，并准确地在实验室中重现这些条件。这使得有可能进行涉及能量收集设备的现实和可重复的实验。Ekho是一个通用的移动的工具，支持广泛的采集技术。我们证明，使用一个工作原型，Ekho能够准确和一致地再现太阳能，射频（RF）和动能收集环境。我们的研究结果表明，Ekho可以通过模拟能量收集条件来重建依赖于收集的程序行为，准确地模拟太阳能环境的能量收集条件在77.4μA以内，动态环境的能量收集条件在15.0μA以内，并且可以一致地模拟RF能量收集条件。
Harvesting energy from the environment makes it possible to deploy tiny sensors for long periods of time, with little or no required maintenance; however, this free energy makes testing and experimentation difficult. Environmental energy sources vary widely and are often difficult both to predict and to reproduce in the lab during testing. These variations are also behavior dependent—a factor that leaves application engineers unable to make even simple comparisons between algorithms or hardware configurations, using traditional testing approaches.In this article, we describe the design and evaluation of Ekho, an emulator capable of recording energy harvesting conditions and accurately recreating those conditions in the lab. This makes it possible to conduct realistic and repeatable experiments involving energy harvesting devices. Ekho is a general-purpose, mobile tool that supports a wide range of harvesting technologies. We demonstrate, using a working prototype, that Ekho is capable of reproducing solar, Radio Frequency (RF), and kinetic energy harvesting environments accurately and consistently. Our results show that Ekho can recreate harvesting-dependent program behaviors by emulating energy harvesting conditions accurately to within 77.4μA for solar and 15.0μA for kinetic environments, and can emulate RF energy harvesting conditions consistently.
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