사람 발걸음에 의해 동작되는 자가발전 무선 스위치 적용을 위한 압전 블록 개발

Abstract

Abstract An important factor in Smart Factory's energy management is the location of large factories. This location-based information can be used to control a variety of electrical and electronic devices and devices. Using floor tiles that can be installed in various locations in the factory, the device can generate enough energy by simple human steps. By using the signal when a person stepped on the tile, the appliance can be operated wirelessly. In this study, a new piezoelectric material system that meets the high energy harvesting characteristics of 0.72Pb(Zr0.47Ti0.53)O3-0.28Pb[(Zn0.45Ni0.55)1/3Nb2/3]O3 + x mol% CuO (PZNxC). The rhombohedral and tetragonal present a clear advantage in terms of stable energy harvesting, which improved performance in terms of energy harvesting. When a person steps on a floor tile, the maximum output voltage is 42 V and the maximum output current is 11 μA. This energy is used to power the wireless sensor nodes that can turn on and off

the appliances' power in real time. The switch installed in an explosion-proof type, a high voltage causes not only a high cost in a cable and a switch case, but also a great difficulty in management. From the cost reduction and facility protection, we developed a suitable protection means corresponding to the explosion proof specification through a piezoelectric switch that can operate at low power.