Storage space allocation method for multi-storey shuttle car automatic storage system

Abstract

The invention discloses a cargo location allocation method applied in a multi-storey shuttle car automatic storage system. The method includes: firstly, generating the plane layout structure data of the system according to the number of shelves and roadways; Analyze the idle time of the hoist, establish an open-loop queuing network model to describe the system, use the decomposition method to analyze the relationship between the waiting time of the shuttle car, the idle time of the hoist, and the time for entering and leaving the warehouse, and determine that the higher the arrival rate of the tasks served by the shuttle car The goods should be arranged in the bottom cargo space, and the goods with higher correlation should be divided into different layers to ensure that there can be multiple shuttle services at the same time. Finally, the principle of dividing the storage area according to the correlation of the items is proposed, the correlation matrix of the outgoing items is established, and the items are clustered with the ant colony algorithm, and the storage areas are combined in the two-dimensional plane according to the analysis results of the queuing network model Arrangement to realize the storage allocation of goods. Through the implementation of the present invention, the waiting time of the shuttle car and the idle time of the hoist can be effectively reduced, thereby improving the utilization rate of the equipment and the throughput of the distribution center.

Description

technical field [0001] The invention relates to the technical field of logistics, in particular to a method for dynamic cargo location allocation of an automatic storage system for multi-layer shuttle vehicles. Background technique [0002] Most of the location allocation methods of traditional automated three-dimensional warehouses are based on random storage, positioning storage, and classified storage strategies. In order to reduce the travel time of the stacker to complete the entry and exit of goods, the goods with high frequency of entry and exit should be placed outside the I / O In order to increase the stability of the cargo in the cargo space near the platform, the heavy cargo should be placed on the lower floor. However, because the multi-storey shuttle car automatic storage system has the characteristics of parallel pick-up and serial out-of-warehouse, it changes the operation mode of the traditional automated three-dimensional warehouse, making the goods distribut...

AI Technical Summary

Problems solved by technology

However, because the multi-storey shuttle car automatic storage system has the characteristics of parallel pick-up and serial out-of-warehouse, it has changed the operation mode of the traditional automated three-dimensional warehouse, making the goods distribution method of the traditional automatic three-dimensional warehouse unable to adapt to the multi-storey shuttle car automatic storage system.

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