A study on optical wireless train communication system using mobile object tracking technique

In this paper, we propose a new ground-to-train communication system using mobile object tracking technique thinking that can realize enough transmission speed on the moving train. Based on the field experiments, we report our proposed system´s effectiveness as the new high-speed ground-to-train communication system. We also propose the tracking control algorithm of beacon light using the wide-angle lens and the telephoto lens. This algorithm is used for mobile object´s position acquisition in the proposed system. The wide-angle lens is used for acquiring the beacon light, and the telephoto lens is used for tracking the beacon light.