Goods shelf queuing method and system

Abstract

The invention discloses a goods shelf queuing method and system, and relates to the field of logistics automation, and the goods shelf queuing method comprises the steps: estimating whether there is avacancy in a station queuing region or not; under the condition that vacancy exists in advance, selecting one goods shelf from the goods shelves which are distributed to the station queuing area andare not carried, and distributing a carrying task to one mobile robot; after the mobile robot takes the goods shelf, re-estimating whether at least one station queuing area in all station queuing areas needing the goods shelf has a vacancy or not; if the vacancy exists in advance, controlling the mobile robot to carry the goods shelf to a station queuing area with the vacancy, and if the goods shelf reaches the position near the station queuing area with the vacancy, determining whether the vacancy is vacated or not; and controlling the mobile robot to enter the station queuing area with the estimated vacancy under the condition that it is determined that the vacancy is vacated. Queuing scheduling is expanded to the whole area, and the defect that the number of robots capable of being contained in a fixed queuing area is limited is overcome.

Description

technical field [0001] The invention relates to the field of logistics automation, in particular to a rack queuing method and system. Background technique [0002] At present, the logistics automation technology is booming, and the robot goods-to-person system has been widely used in the warehousing industry of western developed countries due to its advantages of flexibility and low cost. In traditional warehouse operations, the shelves are fixed, and operators need to walk to the designated storage space to carry out operations. The robot goods-to-person system is different from the traditional operation method. The shelves are transported to the workbench by mobile robots and queued up. The personnel operate on the workbench without walking. The robot goods-to-person system greatly improves the efficiency of personnel work. [0003] In the existing robotic goods-to-person system, the mobile shelf can be placed on multiple sides, and the front, rear, left, and right sides ...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the number of robots that can be accommodated in the fixed queuing area is limited, and the robots that cannot be accommodated will stay in the aisle and block the path of other robots

The queuing path is relatively fixed, and it is easy to cause path deadlock

In this method, the surface-turning area is fixed, which is likely to become a bottleneck of efficiency. When multiple robots need to switch surfaces, the queued robots wait for the release of the surface-turning area, so that the circulation becomes poor.

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