With the continuous expansion of the scale of enterprise modernization and the rapid development of the logistics industry, single-layer inventory in the warehouse is an important part of the logistics system, and the storage form of manual rummaging can no longer meet actual requirements. Three-dimensional warehouses have become an indispensable and important part of the production logistics system, and are key equipment for robots and stackers. The so-called three-dimensional warehouse has more than ten floors at the base, or even dozens of floors of shelf units to load goods in the warehouse or cargo handling equipment (robots) where the goods are transported. The three-dimensional warehouse has high space utilization and a strong storage capacity.

Shuttles are used to connect the external conveyor system to the internal conveyor interface. When there are a large number of stackers, shuttles can be used to connect internal and external cargo transmission, which can save a large number of conveyors and simplify the conveying system process. The control system, communication system, power supply system, drive system, etc. all adopt the same configuration as the stacker crane.

According to the customer's logistics needs and application scenario structure, the goods are stored in bins or cartons on partition shelves. Use robots to transport goods to manual picking tables, manual picking or robot automatic picking. Realize the automation of warehousing and warehousing, and sort out the warehousing according to orders. According to different weights and navigation methods, robots have the following forms: ribbon navigation, QR code navigation, SLAM navigation, etc.