Configuration scheme and task scheduling method for multiple elevators of three-dimensional warehouse

A technology of task scheduling and configuration scheme, which is applied in the fields of industrial automation and logistics to achieve the effect of overcoming flexibility, increasing flexibility and improving utilization.

Inactive Publication Date: 2020-12-11
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the scheduling optimization method of multiple elevators in the current logistics technology field that does not have a three-dimensional warehouse, the invention creatively solves the problem of multi-hoist scheduling optimization for the three-dimensional warehouse by using the loop complement method, improves the utilization rate of the shuttle car, and increases the The flexibility of the three-dimensional library, and the model and solution results established by this method can provide a reference plan for the number of equipment in the three-dimensional library for those skilled in the field

Method used

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  • Configuration scheme and task scheduling method for multiple elevators of three-dimensional warehouse
  • Configuration scheme and task scheduling method for multiple elevators of three-dimensional warehouse
  • Configuration scheme and task scheduling method for multiple elevators of three-dimensional warehouse

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Experimental program
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Effect test

Embodiment 1

[0047] First establish the XYZ three-axis coordinate model of the three-dimensional library, that is, the number of rows is the X axis, from 0 to W from left to right, W is the maximum number of rows; the number of columns is the Z axis, from 0 to L from front to back, and L is the largest column number; the number of layers is the Y axis, from 0 to H from bottom to top, and H is the highest number of layers.

[0048] Then the movement time consumption model of the hoist and the shuttle car is established, the formula (1) is the movement time consumption model of the shuttle car, and the formula (2) is the movement time consumption model of the hoist:

[0049]

[0050]

[0051] where S S is the horizontal and vertical movement distance on the track obtained by formulas (3) and (4), S L is the movement distance of the hoist in the vertical direction. a S with v S is the acceleration and the maximum average speed of the shuttle car, a L with v L are the acceleration ...

Embodiment 2

[0097] Since the above method of randomly generating cargo locations is not common in the industry, the most common storage method in industrial production is fixed cargo locations, so this embodiment 2 conducts certain experiments on fixed cargo locations. The purpose is to further illustrate the practicability of this method. All the positions of the goods this time fall in the fourth cargo location area, and the locations are concentrated, corresponding to the fixed storage method in industrial production. The cargo locations are shown in Table 2.

[0098] Table 2

[0099] serial number Floor List Row serial number Floor List Row serial number Floor List Row serial number Floor List Row 1 1 24 1 11 1 24 2 21 1 24 3 31 1 24 4 2 2 24 1 12 2 24 2 22 2 24 3 32 2 24 4 3 3 24 1 13 3 24 2 23 3 24 3 33 3 24 4 4 4 24 1 14 4 24 2 24 4 24 3 34 4 24 4 5 5 24 1 15 ...

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Abstract

The invention provides a configuration scheme and a task scheduling method for multiple elevators of a three-dimensional warehouse , relates to the technical field of logistics and the field of industrial automation, and aims to solve the problem that no scheduling optimization method suitable for the multiple elevators of the three-dimensional warehouse exists in the technical field of logisticsat present. The method comprises the steps that based on a time model of a four-way shuttle vehicle and elevators in a three-dimensional library established under an XYZ three-axis model, tasks of themultiple elevators are reasonably distributed and dispatched and optimized, and the model is solved and verified through a cyclic completion method. The reliability of the method is verified based ona simulation model of MATLAB, and a configuration optimization and scheduling method for multiple elevators in the current industry is supplemented.

Description

technical field [0001] The invention relates to the technical field of logistics and the field of industrial automation, and relates to a configuration scheme and a task scheduling method of multi-hoisting machines in a three-dimensional warehouse. Background technique [0002] (1) At present, many three-dimensional warehouses in China use stacking cranes. Although this method can increase the storage height of the warehouse, it has high energy consumption and poor flexibility. [0003] (2) In response to the shortage of cranes, the mainstream of today's development begins to use shuttle cars and hoists, but the current warehouses and patents on the market all use the parallel operation of multiple shuttle cars and the serial operation of one hoist, although a single The form of hoist three-dimensional warehouse will save the hoist cost, the scheduling algorithm is simple, and the operation performance is stable, but the overall performance of the system has not been improve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q10/08
CPCG06Q10/067G06Q10/0631G06Q10/087
Inventor 隋振陈华锐吴涛张天星
Owner JILIN UNIV
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