1. Self-Powered and Autonomous Vibrational Wake-Up System Based on Triboelectric Nanogenerators and MEMS Switch.
- Author
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Lin, Yuan, Qi, Youchao, Wang, Jiaqi, Liu, Guoxu, Wang, Zhaozheng, Zhao, Junqing, Lv, Yi, Zhang, Zhi, Tian, Ning, Wang, Mengbi, Chen, Yuanfen, and Zhang, Chi
- Subjects
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ENERGY harvesting , *INTERNET of things , *ENERGY consumption , *AUTONOMOUS vehicles , *TRANSMITTERS (Communication) , *DIESEL electric power-plants , *POWER plants - Abstract
With the extensive application of wireless sensing nodes, the demand for sustainable energy in unattended environments is increasing. Here, we report a self-powered and autonomous vibrational wake-up system (SAVWS) based on triboelectric nanogenerators and micro-electromechanical system (MEMS) switches. The energy triboelectric nanogenerator (E-TENG) harvests vibration energy to power the wireless transmitter through a MEMS switch. The signal triboelectric nanogenerator (S-TENG) controls the state of the MEMS switch as a self-powered accelerometer and shows good linearity in the acceleration range of 1–4.5 m/s2 at 30 Hz with a sensitivity of about 14.6 V/(m/s2). When the acceleration increases, the S-TENG turns on the MEMS switch, and the wireless transmitter transmits an alarm signal with the energy from E-TENG, using only 0.64 mJ. Using TENGs simultaneously as an energy source and a sensor, the SAVWS provides a self-powered vibration monitoring solution for unattended environments and shows extensive applications and great promise in smart factories, autonomous driving, and the Internet of Things. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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