Traditional manual warehouses have low shelves and cannot make full use of the vertical space, while the flat space requires a large area of land and low space utilization, resulting in a small amount of stored goods; manual picking and storage of goods is required, and the synchronization of information updates is slow and labor efficiency Limited; the warehouse is greatly affected by the environment, and the dark, low-temperature, toxic and other environments cannot be used manually. The labor-intensive working environment is greatly affected by the epidemic, and it is difficult to fill the gap in personnel.