Self‐Feedback Sensing Properties of Self‐Powered Multi‐Parameter Meteorological Sensor with Omnidirectional Array Structure

Abstract

mitigated by reliable monitoring and early warning of frequent hurricanes, floods, droughts, etc. However, traditional meteorology sensors usually require an external power supply. The battery has the disadvantages of limited-service life, regular replacement, and potential environmental pollution, which severely limits its application in remote and unattended areas. Therefore, it will be of great significance to develop a sustainable, reliable, and ecofriendly self-powered meteorology sensor.Based on the advantages of low cost, simple preparation, and wide selection of materials, the advent of the triboelectric nanogenerator (TENG) provides a new technological path for self-powered sensors. [3][4][5][6] Therefore, TENG-based self-powered sensors have been widely explored in many fields, such as health monitoring [7][8][9] , intelligent transportation [10,11] , and environmental monitoring. [12,13] Additionally, there are many studies focusing on selfpowered meteorological monitoring [14][15][16][17][18][19][20][21] , as summarized in Table 1. By collecting the rain energy, the judgment of whether there is rain can be realized. [14,15] And, the reliable monitoring and early warning of rainfall intensity can be achieved by optimizing the structure or combining with the traditional rain gauge. [16,17] Furthermore, based on the coupling effect of triboelectrification and electrostatic induction of the TENG, the wind speed can be monitored through onefold TENG or a composite structure of the TENG and an electromagnetic generator. [18,19] Moreover, the UV light intensity and wind speed are detected based on the photoelectric effect and the contact electrification effect. [20] More importantly, by collecting different natural energies, it is possible to monitor whether it is windy, rainy, or sunny. [21] To sum up, it can be seen that various weather conditions can be monitored by collecting different natural energies. However, these studies often can only monitor a single weather or judge different weather types, and there are few studies on self-powered sensors that can achieve monitoring of multiple meteorological parameters. Therefore, the development of self-powered meteorological sensors that can accurately monitor multiple meteorological parameters, by collecting natural energy, will have important application prospects.