为室内环境提供高效的多跳式无线电力传输
Janis Eidaks1, Romans Kusnins1, Ruslans Babajans1
1Institute of Microwave Engineering and Electronics, Riga Technical University, Azenes St. 12, LV-1048 Riga, Latvia.
Sensors (Basel, Switzerland)
|September 9, 2023
概括
这项研究提高了物联网 (IoT) 的无线电力传输 (WPT) 效率,使用多跳式方法. 这种方法增加了终端传感器节点的接收功率,改善了自主设备的操作.
科学领域:
- 电气工程 电气工程
- 无线通信系统无线通信系统
- 传感器网络 传感器网络
背景情况:
- 物联网 (IoT) 和无线传感器网络 (WSN) 的普及,需要为自主设备提供高效的无线供电解决方案.
- 现有的无线电力传输 (WPT) 方法面临效率挑战,特别是对于低功耗的自主系统.
- 无线通信技术的进步为改善WPT提供了潜在的解决方案.
研究的目的:
- 调查多跳式 (MH) 概念的有效性,以提高无线电力传输 (WPT) 的效率.
- 在无线传感器网络 (WSN) 中,增加终端传感器节点 (ESN) 的接收功率.
- 探索信号放大技术在多跳式WPT框架中的应用.
主要方法:
- 开发并制造了WPT.的多跳节点 (MHN) 原型.
- 在次GHz频率范围内进行实验测量和功率传输建模.
- 在视线 (LoS) 和非视线 (NLoS) 场景中评估WPT性能,包括NLoS的90度打开角度.
- 提出了一种高效的模拟方法来分析MH WPT技术和传感器节点分布.
主要成果:
- 通过实验室实验证明了一个功能多跳节点 (MHN) 原型.
- 在各种条件下,在终端传感器节点 (ESN) 测量接收功率和RF-DC转换电压.
- 验证了多跳式WPT概念的潜力,以提高电力供应效率.
- 展示了模拟方法对优化无线传感器节点放置的实用性.
结论:
- 多跳 (MH) WPT策略,利用信号放大,有效地提高了向终端传感器节点 (ESN) 输送功率.
- 实验验证证证了MH WPT在LoS和NLoS环境中的可行性和好处.
- 拟议的模拟方法为优化无线传感器节点的空间分布提供了有价值的工具,以提高WPT效率.
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