Exploring the Boundaries of Ambient RF Energy Harvesting With LoRaWAN
Exploring the Boundaries of Ambient RF Energy Harvesting With LoRaWAN
复制标题
使用 LoRaWAN 探索环境射频能量收集的边界
DOI：
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发表时间：
2021
影响因子：
10.6
通讯作者：
Stephen Brown
中科院分区：
文献类型：
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作者：
J. Finnegan;K. Niotaki;Stephen Brown
环境监测是无线传感设备的重要应用。电池电源需要现场更换，所涉及的化学物质对环境有害，因此收集的能源是一种有用的替代品。先前的研究已经表明，使用高能量环境或无线传输电源为LoRaWAN传感器供电是可行的。本文通过探索使用低能量射频（RF）环境源的边界来扩展这项工作。环境射频能量收集是一个有吸引力的选择，但它是更具挑战性的，由于通常可用的能量密度低的水平.使用分析LoRaWAN设备模型和从世界各地收集的射频能量数据，设计和环境空间进行系统的调查.本文的主要贡献是确定从环境RF能量为LoRaWAN传感器节点供电的可行性边界。这些界限包括设计和环境因素。
Environmental monitoring is an important application for wireless sensing devices. Battery power requires in-the-field replacement, and the chemicals involved are environmentally harmful, so harvested energy is a useful alternative. Previous research has shown the feasibility of powering LoRaWAN sensors using high-energy ambient or wireless transfer power sources. This article extends this work by exploring the boundaries of using low-energy radio-frequency (RF) ambient sources. Ambient RF energy harvesting is an attractive option, but it is more challenging due to the low levels of energy density typically available.Using an analytical LoRaWAN device model and RF energy data collected from around the world, a systematic investigation of the design and environmental space is performed. The main contribution of this article is to identify the boundaries of feasibility for powering LoRaWAN sensor nodes from ambient RF energy. These boundaries include design and environmental factors.