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An optimal scheduling method for a printed circuit board surface mount production line

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

Active Publication Date: 2018-12-14
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 a printed circuit board surface mount production line
  • An optimal scheduling method for a printed circuit board surface mount production line
  • An optimal scheduling method for a printed circuit board surface mount production line

Examples

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Embodiment 1

[0026] Example 1: Such as Figure 1-3 As shown, an optimized scheduling method for a printed circuit board surface mount production line is used to establish a disjunctive planning model and determine an optimization goal through the scheduling process of a printed circuit board surface mount production line, and use an optimized scheduling method based on an improved sin-cosine algorithm to The goal is optimized; the printed circuit board surface mount production line scheduling problem is represented by the disjunctive graph G=(N,A,E,Re), and the disjunctive planning model is based on the number of processes and processing time of each PCB on each placement machine And the processing order constraints of each PCB on each placement machine are established in the description of the disjunctive diagram, and the optimization goal is the total weighted delay time; the disjunctive programming model is described as follows:

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Abstract

The invention relates to an optimal scheduling method for a printed circuit board surface mount production line, belonging to the field of intelligent optimal scheduling of a production workshop. Theinvention establishes a disjunction planning model and determines an optimization target through a scheduling process of a surface mount production line of printed circuit boards, and optimizes the target by using an optimization scheduling method based on an improved sine and cosine algorithm. The disjunction graph G= (N, A, E, Re) is used to represent the scheduling problem of the printed circuit board surface mount production line. The disjunction planning model is established according to the description of the number of operations of each PCB on each mounting machine, the processing timeand the processing order of the PCBs on each mounting machine, and the optimization objective is the total weighted delay time. The invention can improve the mounting efficiency by 12% to 20%, can reduce the production cost of the factory, can greatly meet the needs of customers, and can improve the economic benefit and the reputation of the factory.

Description

Technical field [0001] The invention relates to an optimized scheduling method for a printed circuit board surface mounting production line, and belongs to the field of intelligent optimized scheduling of production workshops. Background technique [0002] The assembly system of printed circuit board (PCB), also known as Surface Mounted Technology (SMT), is an electronic assembly that prints and mounts electronic components on the surface of a printed circuit board or substrate Process technology, as an important electronic connector, PCB is used in almost all electronic products and is regarded as the "mother of electronic system products". Its technological changes and market trends have become the focus of many industry players. [0003] Mounter is the realization form of surface mount technology and has been widely used in electronic assembly production lines. Mounter is the core technology of the entire production process, and its production speed directly affects the efficien...

Claims

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Application Information

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Patent Type & Authority Applications(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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