The invention discloses a network-
connected vehicle positioning method based on a 3D
laser radar and V2X. The method comprises the following steps of using a
laser radar installed on a network-
connected vehicle to scan an environment around a network-
connected vehicle so as to obtain
radar data; preprocessing the radar data, acquiring preprocessed
laser point cloud data, converting the point clouddata to a network-connected vehicle coordinate
system, and then, according to the
density change characteristic of a radar point in the
point cloud data, using a raster map to carry out
point cloud segmentation so as to realize the separation of a pavement and barriers; carrying out the clustering of the barriers, acquiring a radar
point set corresponding to each barrier, and then obtaining the contour of the barrier, then carrying out
linear fitting to obtain the shape of the barrier, and combining the size of the barrier to realize barrier identification; and finally, realizing the exchangeof barrier information among other network-connected vehicles through a V2X module. In the invention, a problem that an existing
vehicle positioning method has low accuracy and poor reliability is solved, and simultaneously problems that a requirement to the speed of a
mobile communication network is high and cost is high are alleviated.