Underwater Ultrasonic Wireless Power Transfer: A Battery-Less Platform for the Internet of Underwater Things
| Autor: | Neil Dave, Raffaele Guida, Tommaso Melodia, Emrecan Demirors |
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| Rok vydání: | 2022 |
| Předmět: |
Computer Networks and Communications
Computer science business.industry Interface (computing) Electrical engineering Transmission (telecommunications) Sensor node Maximum power transfer theorem ComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMS Ultrasonic sensor Wireless power transfer Electrical and Electronic Engineering Underwater business Software |
| Zdroj: | IEEE Transactions on Mobile Computing. 21:1861-1873 |
| ISSN: | 2161-9875 1536-1233 |
| Popis: | The Internet of Underwater Things (IoUT) is a promising approach to future military, scientific, and commercial applications at sea. Powering of electronic devices in deep water still remains one of the main challenges, since these systems 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 battery-less underwater sensor node that can be wirelessly recharged through ultrasonic waves from longer distances than allowed by current 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 where the storage unit is realized with a batch of supercapacitors. We show through experiments that the harvested energy is sufficient to provide the sensor node with the power necessary to perform a sensing operation and power a modem for ultrasonic communications. We evaluate the system power transfer efficiency. 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. |
| Databáze: | OpenAIRE |
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