A Method for Construction Core Points Identification based on Trajectory Data of Engineering Vehicles

According to the internal relationship between the track of engineering vehicles and the construction area, and combining with the characteristics of the trajectory data, a method of estimating the radius of construction area based on the inflexion point is designed, which is to achieve fast calculation of density peaks. And then, the clustering number K and their centers are selected with the density peaks. Finally, the density based K-means clustering algorithm is designed to identify the core points of construction. The field experiment results show that this approach can quickly and effectively identify the core points of construction.