Steel scrap warehousing navigation method and system

The invention provides a steel scrap warehousing navigation method and system, and the method comprises the steps: reconstructing a three-dimensional map of a steel scrap material yard according to the three-dimensional point cloud data of the steel scrap material yard, and determining the position of each steel scrap material pile in the steel scrap material yard in the three-dimensional map; recognizing the visible light image of the steel scrap material yard, and obtaining the steel scrap type of each steel scrap pile; according to the type of the steel scrap loaded by the vehicle to be put in storage, matching the storage position in the steel scrap material yard; according to the storage position, distributing a storage advancing route for the vehicle to be put in storage, enabling the vehicle to be put in storage to travel to the storage position according to the storage advancing route, and completing unloading and storage of the steel scrap; the storage precision can be effectively improved, manual pa