The ubiquitous sensors have accelerated the realization of Internet of Things (IoT) but also raised challenges to the current overcrowding radio frequency (RF) based communications. The optical wireless communication (OWC) that utilizes the wide optic bandwidth can well solve the spectrum crisis and is an appealing complementary solution to the IoT applications. However, the additional direct current (DC) power supply and complicated modulating and power management circuits may limit the large-scale deployment of OWC systems. In this paper, by integrating with triboelectric nanogenerators (TENGs), the light-emitting diode (LED) could be directly transformed into a wireless transmitter that conveys the information associated with mechanical stimuli without additional power supply. With the customized TENG devices and the help of advanced image processing and machine learning techniques, three demonstrations with functions of optical remote control, pressure sensing, and security authentication, were demonstrated. The concept and results in this paper may greatly broaden the application of IoT through the integration of OWC and TENG.

无处不在的传感器加快了物联网（IoT）的实现，但也对当前基于过度拥挤的射频（RF）的通信提出了挑战。利用宽带宽的光无线通信（OWC）可以很好地解决频谱危机，并且是物联网应用的诱人补充解决方案。但是，额外的直流（DC）电源以及复杂的调制和电源管理电路可能会限制OWC系统的大规模部署。在本文中，通过与摩擦电纳米发电机（TENG）集成，可以将发光二极管（LED）直接转换为无线发射器，该发射器无需额外的电源即可传递与机械刺激相关的信息。借助定制的TENG设备，并借助先进的图像处理和机器学习技术，演示了三个具有光学远程控制，压力感测和安全认证功能的演示。通过OWC和TENG的集成，本文的概念和结果可以极大地扩展IoT的应用。