Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

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
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Examples

Experimental program
Comparison scheme
Effect test

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com