Abstract

Self-powered sensors are an important application development direction of nanogenerators. The development of fully self-powered systems that do not rely on traditional energy systems such as mains power or batteries is of great value to the future design of the loT. Such system design is not an easy task due to the detailed calculation of multiple units' energy consumption combined with smart design of minimizing the total consumption of the full system design. By converting energy such as wind energy into electrical energy and designing an indication system that simultaneously utilizes this energy, we completed a fully self-powered sensing system to transduce the wind strength of a high-speed rail. The self-powered sensor part of the system utilizes the modulus design of the pleated elastomer and at the same time achieves wind pressure-LED indication. The circuit is simplified by dropping the traditional control chips, decreasing the energy consumption, and increasing the system reliability. This crumple sensor system has a faster activation speed than that of other wind cup sensors and can sense the wind force when a train passes to protect the canopy structure. This system presents ideas for future designs of fully self-powered systems.