Energy Optimization of Wireless Ambient Energy Absorbing Sensor Network Nodes Using Numerical Methods

Abstract

The article is devoted to the problem of autonomous power supply of electronic devices. The aim of the study is to develop proposals for optimizing the parameters of the use of available energy. On the example of a wireless sensor network node having a supercapacitor in its composition, the method of increasing the working time of autonomous electric devices that implement the absorption of environmental energy is proposed. The method is based on using the maximum amount of incoming energy and charging with constant power buffer capacitive storage of electrical energy. The analysis of efficiency of such charging is carried out and the mathematical model based on the theory of electric circuits, which allows obtaining the calculated charging characteristics, is offered. The implementation of the presented method increases the autonomy without changing the composition and structure of the electronic device.