Autonomous wireless sensor nodes (WSN) for information acquisition and status monitoring, play an important role in the boom area of the internet of things (IoT) and industry 4.0. Self-sustained power supply is an important pursuit in massive practical applications but yet to be developed. Here we propose a novel hybrid piezoelectric generator (PEG) and triboelectric nanogenerator (TENG) to form a novel self-sustainable WSN. The PEG consisting of a hinged-hinged PZT bimorph and two T shaped proof mass, has an output power of 6.5 mW excited in 25 Hz at 1.0 g. PEG also shows broadband characteristics thanks to the impact of the TENG and tunable frequency due to the axial force. 30 serial LEDs in sine vibration and 20 serial LEDs in shock vibration are lighted up with the proposed double voltage rectifier circuit by PEG, which can serve as alarming signals in vibration and drop monitoring. The triboelectric accelerometer shows good linearity with a sensitivity of 15 V/g in 0–1.5 g with an optimized gap of 1.5 mm. After low power design, Arduino nano and RF transceiver can be sustainably powered by PEG, and send the TENG acceleration signal wirelessly by Zigbee. A VR train monitoring demonstration has been conducted showing the great prospect of the self-sustainable WSN in harsh environments.

用于信息获取和状态监控的自主无线传感器节点（WSN）在物联网（IoT）和工业4.0的繁荣领域中发挥着重要作用。自持电源是在大规模实际应用中的重要追求，但有待开发。在这里，我们提出了一种新型的混合压电发电机（PEG）和摩擦电动纳米发电机（TENG），以形成一种新型的自持式无线传感器网络。PEG由铰链连接的PZT双压电晶片和两个T形验证质量组成，其输出功率为6.5 mW，在25 Hz的频率下以1.0 g激发。PEG还显示出宽带特性，这归功于TENG的影响和轴向力带来的可调频率。通过PEG提出的双电压整流器电路，正弦振动的30个串联LED和冲击振动的20个串联LED点亮，在振动和跌落监控中可用作报警信号。摩擦加速度传感器显示出良好的线性度，在0-1.5 g中的灵敏度为15 V / g，优化间隙为1.5 mm。经过低功耗设计后，Arduino nano和RF收发器可以由PEG持续供电，并由Zigbee无线发送TENG加速信号。已经进行了VR火车监控演示，展示了在恶劣环境中可自我维持的WSN的广阔前景。