Intelligent transportation systems (ITSs) can be employed to solve problems such as traffic congestion and road accidents via the installation of self-powered sensors. Speed bumps are extensively used and have excellent potential for use as self-powered sensors in ITSs. Previous studies have considered harvesting energy from speed bumps based on electromagnetic, piezoelectric, and triboelectric effects, but the mechanical properties and suitability for mass production of commercial speed bumps were not considered. Herein, a practical speed bump triboelectric nanogenerator (SB-TENG) is proposed by considering the existing structures/materials and fabrication processes of commercial speed bumps. The SB-TENG comprises a commercial PVC speed bump as a body substrate and six copper electrodes. The overall structure is simple, electrode-inserted, and fully packaged. The SB-TENG can be used in both single-electrode and freestanding modes. The electrical performance of the SB-TENG is measured in terms of the peak and RMS outputs depending on the dynamic motion of the wheels as they pass over the speed bump. Through water and soil contamination tests, the SB-TENG is shown to generate electrical signals and recover its original output. Finally, we demonstrate that the SB-TENG can serve as a self-powered automobile warning sensor and velocity sensor in ITSs.

通过安装自供电传感器，可以采用智能交通系统（ITS）解决交通拥堵和道路交通事故等问题。减速带被广泛使用，在ITS中用作自供电传感器的潜力巨大。先前的研究已经考虑了基于电磁，压电和摩擦电效应从减速带中收集能量的方法，但是并未考虑机械性能以及批量生产商用减速带的适用性。在此，考虑到商用减速器的现有结构/材料和制造工艺，提出了实用的减速器摩擦电纳米发电机（SB-TENG）。SB-TENG包括一个商用PVC减速带作为主体基板和六个铜电极。整体结构简单，电极插入，并完全包装。SB-TENG可用于单电极和独立式两种模式。SB-TENG的电气性能是根据峰值和RMS输出来衡量的，该值取决于车轮经过减速带时的动态运动。通过水和土壤污染测试，表明SB-TENG会产生电信号并恢复其原始输出。最后，我们证明了SB-TENG可以用作ITS中的自供电汽车警告传感器和速度传感器。如图所示，SB-TENG会产生电信号并恢复其原始输出。最后，我们证明了SB-TENG可以用作ITS中的自供电汽车警告传感器和速度传感器。如图所示，SB-TENG会产生电信号并恢复其原始输出。最后，我们证明了SB-TENG可以用作ITS中的自供电汽车警告传感器和速度传感器。