Simultaneous energy harvesting and signal sensing from a single triboelectric nanogenerator for intelligent self-powered wireless sensing systems
Simultaneous energy harvesting and signal sensing from a single triboelectric nanogenerator for intelligent self-powered wireless sensing systems
复制标题
用于智能自供电无线传感系统的单个摩擦纳米发电机的同步能量收集和信号传感
DOI：
10.1016/j.nanoen.2020.104813
复制
发表时间：
2020-09-01
期刊：
影响因子：
17.6
通讯作者：
Yu, Hua
中科院分区：
文献类型：
--
作者：
Lu, Shan;Gao, Lingxiao;Yu, Hua
可持续电力和可靠信号传感的难题给物联网时代的电子系统带来了严峻的挑战。幸运的是，摩擦纳米发电机（TENG）作为一种有前途的机电转换方法，已被广泛用于解决这两个问题。在现有的报告中，TENG既可以用作能量采集器，也可以用作自供电传感器，但它无法在单个系统中同时满足这两种需求。在这项工作中，通过提出一种解耦/提取信号和能量的方法，通过从旋转摩擦纳米发电机（R-TENG）同时提取能量和捕获信号，在单个设备中实现能量收集和信号传感，从而实现真正的自供电传感系统。首先，我们提出了一种采用PCB制造工艺的R-TENG装置，它可以从外部旋转获取能量和传感信号。然后，我们设计了一个解耦的信号处理单元和一个为信号处理单元供电的预留电源管理单元以及一个带有微控制器的附加无线传输模块。最后，我们建立了一个验证系统，使用风力驱动的R-TENG收集风能，同时检测风速信息。收集到的能量为整个系统提供动力，测量到的风速信息成功地无线传输到接收端。这种解耦/提取信号和能量的方法扩展了TENG的应用，它可以在自供电系统中同时用作能量采集器和传感器。
The puzzle of sustainable power and reliable signal sensing poses a tough challenge for electronic systems in the era of the Internet of Things. Fortunately, triboelectric nanogenerator (TENG), as a promising electro-mechanical conversion method, has been widely used to solve these two problems as reported. In existing reports, TENG is used either as an energy harvester or a self-powered sensor, yet it cannot undertake both demands at the same time in a single system. In this work, by proposing a method of decoupling/extracting signals and energy, energy harvesting and signal sensing in a single device were both achieved by extracting the energy and capturing signal simultaneously from a rotating triboelectric nanogenerator (R-TENG), through which a real self-powered sensing system is realized. Firstly, we proposed a R-TENG device adopting PCB manufacturing process, which can obtain energy and sense signals from external rotation. Then, we designed a decoupled signal processing unit and a reserved power management unit that supplies for the signal processing unit and an additional wireless transmission module with a microcontroller. Finally, we set up a validation system that uses wind-driven R-TENG to collect wind energy while detecting wind speed information. The collected energy powers the entire system and the measured wind speed information is successfully transmitted to the receiving end wirelessly. This method of decoupling/extracting signals and energy expands the application of TENG that it can be used as energy harvester and sensor simultaneously in a self-powered system.