Enabling battery-less wearable sensors via intra-body power transfer: demo abstract
Enabling battery-less wearable sensors via intra-body power transfer: demo abstract
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通过体内电力传输启用无电池可穿戴传感器：演示摘要
DOI：
10.1145/3356250.3361959
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
S. Lee
中科院分区：
文献类型：
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作者：
Rishi Shukla;Neev Kiran;Rui Wang;Jeremy Gummeson;S. Lee
在这项工作中，我们提出了SkinnyPower，体内功率传输（IBPT）的概念，通过人体皮肤无线传输功率来操作无电池可穿戴传感器。我们设想了一个场景，其中无电池传感器放置在小的身体部位（例如，手指上、耳内和口中）可以从另一个身体佩戴的能量源（例如，已经存在的电池供电的可穿戴设备，诸如智能电话、智能手表或附接到颈部的类似创可贴的电池贴片）。为了演示和验证IBPT的概念，我们实现了一个原型，包括1）一个手腕佩戴的电池供电的功率发射器，通过人体发送交流电，2）一个手指佩戴的无电池传感器设备，仅依靠身体传输的功率运行。对五个主题的评估表明，我们可以可靠地支持约1 mW的功率，可用于操作嵌入式系统，连续收集传感器（加速度计）数据，并使用蓝牙低功耗实时无线传输收集的数据。我们相信，所提出的系统具有巨大的潜力，可以改变当前的体域网络架构和设计，促进创新的体上传感器的开发，而这些传感器在其他情况下是不可能通过设备上的电池实现的。
In this work, we present SkinnyPower, a concept of Intra-Body Power Transfer (IBPT) that wirelessly transfers power through human skin to operate batteryless wearable sensors. We envision a scenario, in which batteryless sensors placed on small body parts (e.g., on-finger, in-ear, and in-mouth) can obtain operating power from another body-worn energy sources (e.g., already existing battery-powered wearable devices such as a smartphone, smartwatch, or BandAid-like battery patch attached to the neck). To demonstrate and validate the concept of IBPT, we implemented a prototype consisting of 1) a wrist-worn, battery-powered power transmitter that sends alternating current through the human body and 2) a finger-worn, batteryless sensor device that operates solely on body-transferred power. Evaluations on five subjects show that we can reliably support the power of approximately 1 mW, which can be used to operate an embedded system, continuously collect sensor (accelerometer) data, and wirelessly transfer the collected data in real-time using Bluetooth Low Energy. We believe that the proposed system has great potential to transform current architectures and designs for body-area networks, promoting the development of innovative on-body sensors that would otherwise not be possible with on-device batteries.