Exploration of possible energy sources for hybrid power system of indoor WSN

Energy harvesting (EH) for wireless sensor network (WSN) nodes has become common due increased demand on ensuring autonomous operation of low power sensors and devices. It has been shown that there is no single power source providing optimal resource utilization of WSN. This paper is dedicated to the investigation of energy harvesting components with potential of implementation in hybrid power systems of autonomous WSN. First, the possible topology of hybrid power system is provided, including two distinct alternative power sources. Then the experimental investigation of solar and radio frequency power harvesters is provided, depicting the possibilities of integration of mentioned power sources within single intelligent power system.