UAV Remotely-Powered Underground IoT for Soil Monitoring
UAV Remotely-Powered Underground IoT for Soil Monitoring
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DOI：
10.1109/tii.2023.3272016
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发表时间：
2024-01
影响因子：
12.3
通讯作者：
Yu Luo;Lina Pu
中科院分区：
文献类型：
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作者：
Yu Luo;Lina Pu
本文介绍了一种利用超高频（UHF）无线电能量对地下物联网（IoT） （UIoT）进行土壤监测的无线充电的实用方法。在拟议的系统中，UIoT节点不需要电池或任何地上附件（例如太阳能电池板）。相反，他们收集915兆赫的无线电能量从无人机发射半永久操作。UIoT节点利用收集的能量测量土壤参数，并使用ZigBee协议将数据传输回无人机。从uiot收集数据后，无人机将其上传到云服务器进行在线土壤质量分析。该系统已优化为高效操作，具有低至2w的无人机发射功率。启动、驱动和电源管理电路的设计确保了UIoT节点的可靠运行，即使在低入射能量的情况下也是如此。根据实验结果，开发的射频充电地下物联网系统可以在无线充电的10秒内成功上电并传输超过1kb的数据，之后每1.6秒额外传输1.7 kB的数据。
This article introduces a practical approach to wirelessly charge underground Internet of Things (IoT) (UIoT) for soil monitoring using ultra-high-frequency (UHF) radio energy. In the proposed system, UIoT nodes do not require batteries or any aboveground attachments (e.g., solar panel). Instead, they harvest 915 MHz radio energy emitted from a UAV for semiperpetual operation. The UIoT nodes utilize the harvested energy to measure soil parameters and transmit data back to the UAV using ZigBee protocol. After collecting the data from UIoTs, the UAV uploads it to a cloud server for online soil quality analysis. The system has been optimized for efficient operation, with a UAV transmit power as low as 2 W. Startup, drive, and power management circuits have been designed to ensure reliable operation of UIoT nodes, even with low incident energy. According to experimental results, the developed radio frequency charging-enabled underground IoT system can successfully power up and transmit more than 1 kB of data within 10 s of wireless charging, followed by an additional 1.7 kB of data every 1.6 s thereafter.