A Collection of Contemporary Research Articles in Electronics, Communication & Computation- Book ISBN- 978-81-948050-7-6

Authors: Gourav Verma, Yash Bhatnagar

Abstract: WSN nodes are termed wirelessly connected sensor networks which are applied in the tough physical conditions of the environment for assembly and arrangement of data gathered from this open environment. WSN nodes are placed in different and worst atmospheres for the collection of data related to minerals, temperature/heat, sound, wind, water, sunlight, and so on. But since the lifetime of these WSN nodes directly depends on their power supply that is a battery but in these difficult environmental conditions it is a great challenge to replace/recharge their battery manually, so there comes the need for energy harvesting systems which uses the natural energy sources available in an open environment.  In this paper, such energy harvesting techniques are discussed which uses natural energy sources openly available in the environment and the WSN nodes with these energy harvesting models are known as Self powering WSN nodes. The main structure of these self-powering WSN nodes is divided into two parts first is the sensor part and the other part is the energy harvester. These energy harvesters may use one energy source or these might be hybrid which means it uses more than one energy source. In the end of the paper some important conclusions are made based on the comparison on energy harvesting models.

Keywords: WSN Node, Energy Harvesting System, Natural Energy Sources