A self-powered energy harvester for real roads to predict and detect black ice formation and pinpoint dangerous road sections was developed. An open-type piezoelectric device was developed for a high-efficiency module to achieve uniform stress distribution for enhanced energy harvesting performance by free-fixed-end type central strike mechanism. The output performance of the open-type device was 80% higher than that of the closed-type device. A uniform stress distribution road piezoelectric generator (URPG) with 120 open-type devices was installed on real roads. The URPG showed output power performance of up to 2.38 mW/cm³ when a vehicle passed once under the condition of being buried 2.5 cm below the road surface. The URPG can operate a wireless temperature sensor monitoring system for 83 s and charge a cellphone battery for 53 s. The developed self-powered energy harvesters can be used to reduce accidents caused by black ice on real roads.

开发了一种用于真实道路的自供电能量收集器，用于预测和检测黑冰形成并查明危险路段。开发了一种用于高效模块的开放式压电器件，通过自由固定端型中央撞击机构实现均匀的应力分布，以增强能量收集性能。开放式设备的输出性能比封闭式设备高80%。在实际道路上安装了一个具有 120 个开放式装置的均匀应力分布道路压电发生器（URPG）。URPG 的输出功率性能高达 2.38 mW/cm ³当车辆在埋在路面以下 2.5 厘米的情况下通过一次。URPG 可操作无线温度传感器监控系统 83 秒，为手机电池充电 53 秒。开发的自供电能量采集器可用于减少实际道路上因黑冰引起的事故。