Three-Dimensional Road Roughness Measurement System Development Based on Laser Rangefinder

To obtain information of the three-dimensional road roughness, a three-dimensional road roughness measurement system based on two-dimensional laser rangefinder was developed. In this paper, we described the composition and working principle of the three-dimensional road roughness measurement system, and designed its functional structure and hardware configuration. This measurement system can complete the measurement of road roughness in a fixed location, and provide accurate information for a three-dimensional road roughness mathematical model to meet the needs of the vehicle system dynamics study.