Harvesting high entropy energy using triboelectric nanogenerator (TENG) has attracted more and more attentions. For normal self-powered wireless sensing applications, a significant portion of harvested energy will be consumed by the subsequent power management and wireless communication units, leading to the incapability of real-time wireless sensing. In this paper, we proposed a pumping switched TENG (PSW-TENG) for real-time wireless sensing. An inductor magnetic sensor coil integrated with the TENG forms a LC resonant circuit, converts the pulsed output of TENG into resonant signal with the encoded sensing information，which is significantly boosted using an integrated microswitch and a charge pump, and then transmitted via a laser diode up to 2 m. The sensor system has been utilized to detect metallic components passing through. The self-powered metal component monitoring system has a height recognition sensitivity of 11.7 kHz/mm and a horizontal position recognition sensitivity of 5.6 kHz/mm with the largest error of 8.5 kHz, showing good sensitivity and stability. Based on the sensing system, the types and passing number of tins on a conveyor can be simultaneously identified and counted. All the results have demonstrated the great potential of the real-time self-powered wireless sensing system for production line management.

使用摩擦纳米发电机（TENG）收集高熵能量已引起越来越多的关注。对于正常的自供电无线传感应用，收集到的大部分能量将被后续的电源管理和无线通信单元消耗，导致无法进行实时无线传感。在本文中，我们提出了一种用于实时无线传感的泵浦开关 TENG（PSW-TENG）。与 TENG 集成的电感磁传感器线圈形成 LC 谐振电路，将 TENG 的脉冲输出转换为带有编码传感信息的谐振信号，使用集成微动开关和电荷泵显着升压，然后通过激光二极管传输高达 2 m。传感器系统已被用于检测通过的金属部件。自供电金属元件监测系统的高度识别灵敏度为11.7 kHz/mm，水平位置识别灵敏度为5.6 kHz/mm，最大误差为8.5 kHz，显示出良好的灵敏度和稳定性。基于传感系统，可以同时识别和统计传送带上罐头的类型和通过数量。所有结果都证明了实时自供电无线传感系统在生产线管理中的巨大潜力。