A Novel Three-Dimensional Algorithm Based on Practical Indoor Visible Light Positioning

With the increased demand of multiple information, positioning technology raises lots of attention in many fields, including military, emergency assistance, and tracking for vehicles. Because of the limitation of the outdoor positioning technologies in indoor applications, indoor positioning is a new and promising field. At the same time, with light-emitting diodes widely adopted, visible light positioning has become a widely researched technology in indoor positioning. However, the existing methods are based on the supposition that the light for positioning is a particle, without considering the shapes of lights, which causes low accuracy to a certain degree. Therefore, in this paper, an improved algorithm for three-dimensional indoor positioning is proposed. It takes the shapes of the transmitters (lights) into consideration, thus, to ensure high indoor-positioning accuracy. In this study, simulations are conducted under the line of sight and two different kinds of noise, which shows the high accuracy performance of the proposed algorithm.