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An Optimal Scheduling Method for Printed Circuit Board Surface Mount Production Line

A printed circuit board and surface mount technology, applied in the field of intelligent optimal scheduling of production workshops, can solve problems such as low economic benefits, customer dissatisfaction, waste of processing and sorting factory costs, etc., to reduce production costs, realize the placement process, and improve the placement process. The effect of loading efficiency

Active Publication Date: 2022-02-08
KUNMING UNIV OF SCI & TECH
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Problems solved by technology

[0005] The purpose of the present invention is to propose an optimized scheduling method based on the improved sine-cosine algorithm for the scheduling problem of the printed circuit board surface mount production line, so as to solve the factory cost caused by improper processing sequence during the processing of the printed circuit board surface mount production line Waste, low economic benefits and customer dissatisfaction caused by failure to complete within the delivery period

Method used

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  • An Optimal Scheduling Method for Printed Circuit Board Surface Mount Production Line
  • An Optimal Scheduling Method for Printed Circuit Board Surface Mount Production Line
  • An Optimal Scheduling Method for Printed Circuit Board Surface Mount Production Line

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Embodiment 1

[0026] Example 1: Such as Figure 1-3 As shown in A surface mount printed circuit board production line optimization scheduling method, the scheduler process of the production line establishing disjunctive programming model and determining the optimum target, using the scheduling optimization algorithm modified sine and cosine method for surface mount printed circuit board optimization targets; surface-mount printed circuit board production line scheduling = (N, a, E, Re) represented by FIG disjunction G, disjunctive programming model based on the number of each step on each PCB placement machine, processing time PCB processing and described in order on each of the placement machine in FIG disjunctive constraint to establish, optimize the total target delay time weighted; disjunctive programming model is described as follows:

[0027]

[0028]

[0029]

[0030]

[0031]

[0032]

[0033] Wherein, N is the set of nodes step, N = OU {0} = {0,1,2, L, TO}, where O = {1,2, L...

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Abstract

The invention relates to an optimal scheduling method of a printed circuit board surface mounting production line, belonging to the field of intelligent optimal scheduling of production workshops. The present invention establishes a disjunctive planning model and determines the optimization target through the scheduling process of the surface mount production line of the printed circuit board, and optimizes the target by using the optimization scheduling method based on the improved sine-cosine algorithm; Taking the graph G=(N,A,E,Re) indicates that the disjunctive planning model is constrained in the disjunctive programming model according to the number of processes of each PCB on each mounter, the processing time and the processing order of each PCB on each mounter. The description in the figure is established, and the optimization objective is the total weighted delay time. The invention can improve the placement efficiency by 12% to 20%, can reduce the production cost of the factory, can greatly meet the needs of customers, and improve the economic benefits and reputation of the factory.

Description

Technical field [0001] The present invention relates to a method for optimizing scheduling surface mount printed circuit board production line, belonging to the field of production for Intelligent Scheduling. Background technique [0002] PCB (printed circuit board, PCB), also known as surface-mount assembly system assembly system (Surface Mounted Technology, SMT), mounting the electronic component is printed on the printed circuit board or substrate surface of an electronic assembly technology, as an important electronic connectors, PCB used in almost all electronic products, is considered the "mother of electronics products," which technological change and market trends as many industry focus. [0003] SMT is implemented in the form of surface mount technology has been widely used in electronic assembly lines, placement machine is the core technology of the whole production process, which directly affects the speed of production efficiency of the process. For surface-mount prin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/04G06N3/12
CPCG06N3/126G06Q10/04G06Q50/04Y02P90/30
Inventor 钱斌孙在省胡蓉
Owner KUNMING UNIV OF SCI & TECH
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