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An automated three-dimensional warehouse scheduling method considering the assembly process

A technology of three-dimensional warehouse and assembly process, which is applied to instruments, biological models, computational models, etc., can solve the problems of reducing assembly efficiency and affecting the normal operation of assembly operations, and achieves the effect of improving diversity, ensuring solution accuracy and convergence efficiency.

Active Publication Date: 2020-06-26
HENAN INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the assembly process, if the storage robot is not scheduled in conjunction with the assembly process, the assembly efficiency will be reduced, and even the normal progress of the assembly operation will be affected.

Method used

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  • An automated three-dimensional warehouse scheduling method considering the assembly process
  • An automated three-dimensional warehouse scheduling method considering the assembly process
  • An automated three-dimensional warehouse scheduling method considering the assembly process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] see figure 1 , the automatic three-dimensional warehouse scheduling method considering the assembly process is characterized in that the following specific steps:

[0044] (1) Analyze the constraints existing on the industrial site and the goals to be optimized, and abstract them into mathematical models;

[0045] (2) Initialization parameters: evolution algebra counter t, maximum evolution algebra N a , the number of nests N n , find the probability minimum and maximum

[0046] (3) Build N n a viable initial nest;

[0047] (4) Calculate the fitness of all nests and record the nest X with the highest fitness best ;

[0048] (5) Global search: t=t+1;

[0049] (6) Local search: i=i+1;

[0050] (7) pass Update the location of the bird's nest;

[0051] (8) Compare the position of the cuckoo's nest between the current generation and the previous generation, and keep the better cuckoo's nest;

[0052] (9) Generate a random number r, if r>p a , then randomly gen...

Embodiment 2

[0057] This embodiment is basically the same as Embodiment 1, and the special features are as follows:

[0058] 1 The mathematical model established in step (1) is established based on the following considerations: ① In order to improve the intelligence level of the assembly workshop, the assembly process is introduced into the warehouse scheduling link; ② In order to save energy and reduce consumption, the warehouse robot The inbound and outbound routes are optimized. Therefore, the goal to be optimized is to minimize the sum of the time required for product assembly in and out of the warehouse and product assembly completion, and its mathematical model is expressed as follows:

[0059] min f(t)=O 1 +O 2 +O 3

[0060]

[0061]

[0062]

[0063]

[0064] Where minf(t) is the target to be optimized, O 1 is the time for entering and exiting the required workpiece, O 2 is the waiting time for the workpiece during the assembly process, O 3 is the installation ti...

Embodiment 3

[0075] see figure 1 , the automatic three-dimensional warehouse scheduling method considering the assembly process, the specific steps are as follows:

[0076] (1) Establish goals and establish optimization models

[0077] The warehouse scheduling problem in the assembly task of this example has the following characteristics:

[0078] The assembly workshop of an enterprise assembles 4 different types of products, and the workpieces required for assembly are stored in the three-dimensional warehouse. The overall layout of the assembly workshop of the enterprise is as follows figure 1 shown.

[0079] Let the average speed of horizontal movement and vertical movement of warehouse robot be v x , v y , and the horizontal and vertical movements are independent of each other. At the same time, the robot has N manipulators; the width and height of each storage space are recorded as W and H respectively, and the distance between the centers of adjacent lanes is D l , the number of...

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Abstract

The invention relates to an automated stereoscopic warehouse scheduling method considering the assembling process, which is characterized in that intelligent manufacturing 2025 is taken as a starting point, industrial field constraints such as the assembling process is introduced into a warehouse scheduling link, a warehouse scheduling optimization model with constraint conditions is built according to a target to be optimized, the model is solved by adopting a Cuckoo search algorithm, and improvements are performed in allusion to certain deficiencies of the Cuckoo search algorithm, that is, a random number encoding technology is proposed so as to enable the Cuckoo search algorithm to solve a problem of discrete domain optimization; secondly, a proposed detection probability adaptive strategy not only reserves a good bird's nest, but also improves the population diversity, and improves the search breadth of the algorithm; thirdly, a proposed step size dynamic adjustment strategy can guide the algorithm to an optimum or suboptimum direction, and the search depth of the algorithm is improved; and finally, an optimal solution having good effects in convergence precision and convergence speed is solved. The automated stereoscopic warehouse scheduling method not only improves the assembly efficiency of products, but also improves the intelligent level of an assembly workshop.

Description

technical field [0001] The invention belongs to the technical field of intelligent manufacturing, and further relates to a novel automatic three-dimensional warehouse scheduling method considering assembly technology. Background technique [0002] With the introduction of the "Made in China 2025" emerging industry strategic plan, intelligent manufacturing has been positioned as the main direction of China's manufacturing and has been applied in various fields. For manufacturing companies, smart workshops and smart factories are the core of smart manufacturing. In this context, automated three-dimensional warehouses are gradually being applied in manufacturing companies, and assembly workshops are an occasion for their application. During the assembly process, if the storage robot is not scheduled in combination with the assembly process, the assembly efficiency will be reduced, and even the normal progress of the assembly operation will be affected. Therefore, it is of grea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/18G06Q10/06G06Q50/04G06N3/00
CPCG06N3/006G06Q10/0631G06Q50/04Y02P90/30
Inventor 杨文强郭昊孔晓红徐君鹏张素君
Owner HENAN INST OF SCI & TECH