An Acoustically Powered Battery-less Internet of Underwater Things Platform
An Acoustically Powered Battery-less Internet of Underwater Things Platform
复制标题
声波供电的无电池水下物联网平台
DOI：
10.1109/ucomms.2018.8493229
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Melodia, Tommaso
中科院分区：
文献类型：
--
作者：
Guida, Raffaele;Demirors, Emrecan;Dave, Neil;Rodowicz, Jennie;Melodia, Tommaso
水下物联网（IOUT）是未来海上军事，科学和商业应用的一种有前途的方法。IoUT的重要组成部分是水下无线传感器网络（UWSN）和自主水下航行器（AUV）。在深水中为这些系统供电仍然是主要挑战之一，因为UWSN节点和AUV通常由电池供电，需要通过昂贵且困难的操作进行更换或充电。本文介绍了第一个无电池水下传感器节点的设计，该节点可以通过超声波从比当前感应和磁性技术所允许的更远的距离进行无线充电。首先，介绍了一种能够从超声波中提取电能的水下平台的结构。然后我们说明了如何将该系统与水下数字通信单元接口。我们讨论了所提出的架构，其中存储单元实现了一批超级电容器的原型的设计。我们通过实验表明，收集的能量存储在超级电容器是足够的，以提供一个水下传感器节点所需的功率来执行感测操作和功率的超声波通信的声学调制解调器。我们评估的无线功率传输效率（PTE）方面的系统性能。与其他技术相比，我们的系统的特点是电到辐射功率转换效率较低。然而，考虑到超声波在水中的衰减减少，我们能够证明我们的方法可以用更少的发射功率覆盖更长的距离。最后，我们评估的工作效率，我们定义为最大可实现的数字数据速率相对于充电和传输时间。
The Internet of Underwater Things (IoUT) is a promising approach to future military, scientific, and commercial applications at sea. Vital components of the IoUT are underwater wireless sensor networks (UWSNs) and autonomous underwater vehicles (AUVs). Powering of these systems in deep water still remains one of the main challenges, since UWSN nodes and AUVs are typically powered by batteries that need to be replaced or recharged through expensive and difficult operations. This article presents the design of the first batteryless underwater sensor node that can be wirelessly recharged through ultrasonic waves from longer distances than allowed by current inductive and magnetic technologies. First, the architecture of an underwater platform capable of extracting electrical energy from ultrasonic waves is introduced. We then illustrate how to interface this system with an underwater digital communication unit. We discuss the design of a prototype of the proposed architecture where the storage unit is realized with a batch of supercapacitors. We show through experiments that the harvested energy stored in the supercapacitors is sufficient to provide an underwater sensor node with the power necessary to perform a sensing operation and power an acoustic modem for ultrasonic communications. We evaluate the system performance in terms of wireless power transfer efficiency (PTE). Our system is characterized by a lower electrical-to-radiated power conversion efficiency when compared to other technologies. However, given the reduced attenuation of ultrasonic waves in water, we were able to show that our approach can cover longer distances with less transmission power. Last, we evaluate the operating efficiency that we define as the maximum achievable digital data rate relative to the charging and transmission times.
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DOI：
10.1145/2831296.2831316
发表时间：
2015-10
期刊：
Proceedings of the 10th International Conference on Underwater Networks & Systems
影响因子：
--
作者：
Emrecan Demirors;Bharatwaj G. Shankar;G. Santagati;T. Melodia
通讯作者：
Emrecan Demirors;Bharatwaj G. Shankar;G. Santagati;T. Melodia
DOI：
10.1145/2999504.3001112
发表时间：
2016-10
期刊：
Proceedings of the 11th International Conference on Underwater Networks & Systems
影响因子：
--
作者：
Emrecan Demirors;Jiacheng Shi;Raffaele Guida;T. Melodia
通讯作者：
Emrecan Demirors;Jiacheng Shi;Raffaele Guida;T. Melodia
用于海水运行的谐振磁无线电力传输系统的仿真和实验评估
DOI：
10.1109/oceansap.2016.7485704
发表时间：
2016
期刊：
OCEANS 2016 - Shanghai
影响因子：
--
作者：
L. Pessoa;M. R. Pereira;H. M. Santos;H. Salgado
通讯作者：
H. Salgado
海底应用中的高谐振无线电力传输
DOI：
--
发表时间：
2013
期刊：
--
影响因子：
--
作者：
M. Kesler;C. Mccarthy
通讯作者：
C. Mccarthy
影响因子：
4.1
作者：
Cha, Youngsu;Kim, Hubert;Porfiri, Maurizio
通讯作者：
Porfiri, Maurizio