A cross-unit scheduling method based on complex network theory

A technology of complex network and scheduling method, applied in the field of cross-unit scheduling based on complex network theory, to achieve the effect of good flexibility, strong adaptability, and solving complex scheduling problems

Active Publication Date: 2019-03-08
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

The method is based on an improved small-world genetic algorithm to solve the cross-unit scheduling problem in a complex network environment, and it can quickly obtain a feasible solution under the conditions of large-scale manufacturing units, many processing tasks, and non-unique cross-unit processing paths for special workpieces And has a good global search ability

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  • A cross-unit scheduling method based on complex network theory
  • A cross-unit scheduling method based on complex network theory
  • A cross-unit scheduling method based on complex network theory

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0031] see figure 1 , the cross-unit scheduling method based on complex network theory provided by the first embodiment of the present invention, the method mainly includes the following steps:

[0032] Step 1, establish a cross-unit scheduling model and a cross-unit manufacturing network model in a complex network environment, wherein, in the cross-unit manufacturing network model, nodes are u...

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Abstract

The invention belongs to the technical field related to cross-unit scheduling, and discloses a cross-unit scheduling method based on the complex network theory. The method comprises the following steps of (1) establishing a cross-unit scheduling model and a cross-unit manufacturing network model under the complex network environment; (2) determining the objective function of the cross-unit scheduling model; (3) coding based on process sequence, machine sequence and manufacturing cell sequence respectively, then establishing initial population and calculating fitness of initial solution; 4) performing cross-mutation on that initial population according to the connecte state of nodes of the small world network to obtain the progeny population; (5) obtaining the new population by combining the current parent population with the offspring population and non-dominated sorting. The new population participates in the next cycle until the maximum number of cycles reaches the preset end. Afterthe end of the cycle, the current optimal solution is selected as the solution to the cross-unit scheduling problem. The method of the invention improves efficiency and quality, and has good accuracyand strong applicability.

Description

technical field [0001] The invention belongs to the related technical field of cross-unit scheduling, and more specifically relates to a cross-unit scheduling method based on complex network theory. Background technique [0002] The cell manufacturing system is one of the latest and most effective production line setup methods in the contemporary era, where machines capable of processing certain workpieces with similar processing paths are placed in a cell. With the development of the manufacturing industry, the demand for products in modern production is becoming more and more diverse. Some processes of the workpiece may require certain specific machines in other units to process, and the requirements of the workpiece for special machines and the expectations of unit processing capabilities are increasing higher. This phenomenon has caused some workpieces to be processed across multiple units, and the transfer of workpieces between units constitutes a cross-unit scheduling...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/04G06N3/12
CPCG06N3/126G06Q10/0631G06Q10/067G06Q50/04Y02P90/30
Inventor 刘琼邹萌邦刘佳良
Owner HUAZHONG UNIV OF SCI & TECH
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