Construction of a centimeter-level positioning system with measurement support function using image analysis

Abstract

In recent years, initiatives for utilizing digital twins in road traffic management have been progressing. To realize a digital twin, it is essential to accurately determine the location of roads. In this paper, we propose a system that enables high-precision positioning of road locations using inexpensive and readily available equipment. The system is equipped with a camera directly beneath the antenna, allowing drivers to continuously verify whether the antenna is passing over the targeted lane markings. Additionally, the system calculates the displacement and direction of the antenna’s position relative to the lane markings through image analysis. By presenting these calculation results to the driver, the system prompts them to correct any deviation of the antenna’s position from the lane markings. Finally, we conduct an experiment to measure the location of the outer edge line of the roadway, confirming the effectiveness of the proposed system.