无线传感器节点实时能耗监测

无线传感器网络设计的关键技术环节之一是低功耗。首先要准确地检测到运行时各模块的能量消耗,然后才能够进行控制优化。然而,应用上的需求千差万别,导致硬件平台的多样性。本文选取无线传感器网络领域节点能量消耗检测作为研究方向,提出了一种便携的无线传感器节点能耗数据采集装置,能够实时采集节点的电压、电流信息。针对当前研究集中于仿真模拟,这种装置可用于实际环境的能量消耗检测,检测精度高。在MicaZ节点上的实验结果表明,该系统能以较高精度监测节点的能量效率。实际测量发现,传感器网络中传感器能耗也属能量消耗的一部分,且消耗量不可忽视,为今后的研究改进提供了新的参考。

Real-Time Energy Consumption Monitoring for Wireless Sensor Nodes

Energy efficiency is a key design issue in wireless sensor networks (WSNs).It is necessary to know the power consumption of each component before optimization. However, different applications need different configurations which will lead to many different hardware platforms. We do some research on the energy efficiency monitoring of WSNs, and propose a portable and real time energy consumption monitoring device for wireless sensor nodes, which measures the current and voltage information in the real world. Compared to simulation, this can be used to monitor the energy efficiency of WSNs in the real world. Furthermore, the experimental results on the wireless sensor network platform named MicaZ show that our design can well monitor the energy consumption of WSNs. Moreover, the energy dissipation of each component on a sensor node also shows that the power consumption of sensors can not be ignored.