Development of Positioning Technology Using LED

With the development of electric vehicles, indoor driving robots, wearable devices, etc., research on technology for recognizing one's current location continues to progress. Self-localization is an essential need autonomous and mainly requires global positioning system (GPS), thereby using technologies such as LiDAR, Wi-Fi, visible light communication (VLC). However, GPS greatly affected by its surrounding environment, it can make errors, especially in spaces where signals are blocked, tunnels buildings. In this paper, we propose a estimating LED lights frequency components with different color temperatures space tunnel. We installed three types tunnel-like experimental environment collected data RGB sensors. also estimated user's according temperature component analysis from data. most cases, was measured within margin error 0–2 cm. It expected that will be used generating service robots vehicles difficult use GPS.