Effective power saving method on self-sustaining system using piezoelectric power generator

This paper presents a self-sustaining system, and an effective method in enhancing overall energy efficiency. The proposed system consists of the two major nodes: a slave node, which contains the environment information (e.g., temperature, humidity, etc.); and a master node, which communicates with the slave nodes, and transmit the slave node´s information to users. All slave nodes are under control of the master node. Each slave node uses two power sources: the piezoelectric power generator (PPG); and the continuous wave from the master node. The paper highlights the basic operational principle, each node´s specifications, and experimental data for performance verification. The two nodes successfully communicate each other in a range of 3.3 m (maximal range), where the user´s computer is wired the master node.