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Self-Powered Wireless Sensor Node Based on Rotational Triboelectric Nanogenerator

机译：基于旋转摩擦纳米发电机的自供电无线传感器节点

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Sustainable microano-power sources, that can harvest the energy from environment for powering low-power sensor nodes or „smart" electronic devices, are newly emerging field of nano energy. In this paper, the focus is set on the rotational disk-structured triboelectric nanogenerator (TENG) with annular-arranged gratings of 9° based on the printed circuit board (PCB) technology. The disk-based TENG can effectively convert motor driven rotational motion into electrical energy by combining contact-electrification and electrostatic induction. The maximum average power of 5.5 mW is reached at the matched load resistance of 2.5 MΩ at the rotational speed of 1770 rpm. Additionally, the power management unit using an integrated circuit energy-harvesting module LTC3588-1 is developed for lowering the output voltage and obtaining a steady DC output for powering the wireless sensor node. The wireless communication is performed between the two eZ430-RF2500T target boards, with an ultra-low power MSP430F2274 MCU and a CC2500 2.4GHz wireless transceiver, programmed as an access point and an end device. The end device successfully measures the internal power supply voltage and its temperature every 10 seconds and transmits the measured data. The access point wirelessly receives the measured data and transfers it to the PC. The self-powered wireless sensor node powered solely by the developed rotational TENG is self-sustainable in the long term without adding an additional battery or backup power source.
机译：可持续的微/纳米电源可以从环境中收集能量，为低功率传感器节点或“智能”电子设备供电，是新兴的纳米能量领域。基于印刷电路板（PCB）技术的具有9°环形排列光栅的结构化摩擦电动纳米发电机（TENG），基于磁盘的TENG可以通过将接触电化和静电感应相结合，有效地将电动机驱动的旋转运动转换为电能。在1770 rpm的转速下，在2.5MΩ的匹配负载电阻下，最大平均功率达到5.5 mW。此外，开发了使用集成电路能量收集模块LTC3588-1的电源管理单元，以降低输出电压并获得稳定的直流输出，为无线传感器节点供电，在两个eZ430-RF2500T目标板之间执行无线通信，并具有超低功耗MSP430F2274 MCU和一个CC2500 2.4GHz无线收发器，被编程为接入点和终端设备。终端设备每10秒成功测量一次内部电源电压及其温度，并发送测量的数据。接入点以无线方式接收测量的数据，并将其传输到PC。从长远来看，仅由已开发的旋转式TENG供电的自供电无线传感器节点可以长期自我维持，而无需添加额外的电池或备用电源。

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