PROJECT TITLE :

The Effect of Flat Panel Reflectors on Photovoltaic Energy Harvesting in Wireless Sensor Nodes Under Low Illumination Levels

ABSTRACT:

This paper discusses the appliance of flat panel reflectors beside photovoltaic cell used to power wireless sensor node. The aim of the reflectors is to increase the indoor ambient light energy harvesting efficiency, especially under low illumination levels (<;200 lx). The profit of the reflectors usage is during the reduction of the node cold boot time and increase of the data transmission frequency. Additionally, the physical placement and orientation of nodes in a very wireless sensor network is less captivated with the illumination conditions. This paper presents a simple theoretical model appropriate for the calculation of the optimal inclination angle for the reflectors. Experimental knowledge show that the cold boot time will be reduced up to thirty% and information transmission frequency increased virtually twice by using two reflectors of the identical size as the photovoltaic cell. The reflectors are created in the conventional printed circuit board technology, therefore they can be incorporated into the node style with negligible prices.