DLC: Distributed Laser Charging

Abstract

Distributed Laser Charging is a new and innovative project for the upcoming technology advancements in far field wireless power transfer. It involves the technique of using laser and photovoltaic cells to transfer power at much longer distances than the wireless power transfer systems available currently. Moreover, the challenge of maintaining the line of sight between laser and PV Cells by using two different techniques i.e. image processing and polarized retro-reflective photoelectric switch. The aim of the project was to research and develop a system for far field wireless power transmission that is more efficient than systems available currently in the market. The different difficulties and challenges associated were assessed and solutions to them were proposed based on the resources available. The results of experiments showed that wireless power transfer is possible and efficient provided that some standards are maintained. For example, using mono crystalline type of PV Cells which are more efficient, using laser that is not harmful for humans yet powerful enough to transfer the required power. The harmfulness of laser was removed by dispersing the laser beam and by turning off the laser altogether when receiver was not present. Tracking has been done by image processing and by the use of polarized retro-reflective photoelectric switches.