Guo Shuaicheng, Zhang Yuejun, Zhou Ziyu, Wang Lixun, Ruan Zhuo, Pan Yu
Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, China.
Micromachines (Basel). 2024 Aug 25;15(9):1072. doi: 10.3390/mi15091072.
The triboelectric nanogenerator (TENG) has the potential to serve as a high-entropy energy harvester, enabling the self-powered operation of Internet of Things (IoT) devices. True random number generator (TRNG) is a common feature of encryption used in IoT data communication, ensuring the security of transmitted information. The benefits of multiplexing TENG and TRNG in resource-constrained IoT devices are substantial. However, current designs are limited by the usage scenarios and throughput of the TRNG. Specifically, we propose a structurally and environmentally friendly design based on the contact-separation structure, integrating heat fluctuation and charge decay as entropy sources. Furthermore, filtering and differential algorithms are recommended for data processing based on TENG characteristics to enhance randomness. Finally, a TENG-based TRNG is fabricated, and its performance is verified. Test results demonstrate a random number throughput of 25 Mbps with a randomness test pass rate approaching 99%, demonstrating suitability for resource-constrained IoT applications.
摩擦纳米发电机（TENG）有潜力成为一种高熵能量收集器，实现物联网（IoT）设备的自供电运行。真随机数发生器（TRNG）是物联网数据通信中常用的加密功能，可确保传输信息的安全性。在资源受限的物联网设备中复用TENG和TRNG的好处是巨大的。然而，目前的设计受到TRNG使用场景和吞吐量的限制。具体而言，我们提出了一种基于接触-分离结构的结构和环境友好型设计，将热涨落和电荷衰减作为熵源进行整合。此外，建议根据TENG的特性采用滤波和差分算法进行数据处理，以增强随机性。最后，制造了基于TENG的TRNG，并对其性能进行了验证。测试结果表明，随机数吞吐量为25 Mbps，随机度测试通过率接近99%，证明其适用于资源受限的物联网应用。
