From Concept to Implementation: Lessons Learned in Designing and Deploying a Visible Light Positioning System

Visible Light Positioning (VLP) systems offer a sophisticated solution to achieve indoor positioning. Utilizing the existing LED (light emitting diode) lighting infrastructure along with an optical receiver, the position of an object or an individual can be determined. In this work we give an overview of the design process of our own VLP system with the goal of creating an easily adoptable VLP system that utilizes conventional LED light and design a compact optical receiver unit for it. We demonstrate how frequency modulated LEDs, enable LED identification for the applied positioning algorithm, while remaining unobtrusive to room occupants. This work is intended to give reasoning to our design choices and to project future enhancements for the VLP system, both in terms of software and hardware.