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Real-time intelligent high-robustness layout optimization method and system for multi-shape manufactured parts

A technology with strong robustness and optimization method, applied in manufacturing computing systems, forecasting, instruments, etc., can solve problems such as unsolvable industrial needs, difficult, complex situations, etc., and achieve saving of industrial raw materials, high real-time performance, and anti-interference strong effect

Pending Publication Date: 2021-11-26
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem of layout of multi-shape manufactured parts is more difficult than the general 2D-BPP problem, and the situation is more complicated. The traditional layout method can no longer meet the industrial needs

Method used

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  • Real-time intelligent high-robustness layout optimization method and system for multi-shape manufactured parts
  • Real-time intelligent high-robustness layout optimization method and system for multi-shape manufactured parts
  • Real-time intelligent high-robustness layout optimization method and system for multi-shape manufactured parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This example considers the layout optimization of rectangular pieces to verify the feasibility of the present invention for layout optimization of rectangular pieces. Let the length and width of the raw material composite rectangular plate be 300×300, and a part of the raw material composite rectangular plate has been cut and used, such as Figure 4 As shown, at present, it is necessary to cut out a rectangular piece with a length of 50 and a width of 45 for processing and production. After calculation of the algorithm, the best layout is horizontal, and the coordinates of the upper left vertex are (52, 98), such as Figure 5 shown;

example 2

[0047] This example considers the layout optimization of circular parts to verify the feasibility of the present invention for layout optimization of circular parts. Let the length and width of the raw material composite rectangular plate be 300×300, and a part of the raw material composite rectangular plate has been cut and used, such as Image 6 As shown; now it is necessary to cut out a circular piece with a radius of 17 for processing and production. After the algorithm is calculated, the layout result obtained is as follows Figure 7 shown;

example 3

[0049] This example considers the layout optimization of circular parts to verify the feasibility of the present invention for layout optimization of circular parts. Let the length and width of the raw material composite rectangular plate be 300×300, and a part of the raw material composite rectangular plate has been cut and used, such as Figure 8 As shown; now it is necessary to cut out an equilateral right-angled triangle with a side length of 50 for processing and production. After calculating the algorithm, it is obtained that the best layout is rotated at 0°, and the coordinates of the apex of the right angle are (0, 230); Figure 9 shown.

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Abstract

The invention discloses a real-time intelligent multi-task high-robustness layout optimization method and system for multi-shape manufactured parts, and the method comprises the following steps: S1, converting the required sizes of rectangular parts, round parts and right-angled triangular parts into shape convolution kernels; S2, according to the size of a raw material rectangular plate, generating a plate matrix with the same proportion; S3, performing convolution operation on the shape convolution kernel and the plate matrix to obtain a placement matrix LOC; S4, generating a value detection convolution kernel according to the size of the manufactured part, and performing convolution operation on the value detection convolution kernel and the placement matrix LOC to obtain a value matrix; and S5, according to the size of the manufactured part, generating a judgment convolution kernel, comprehensively considering information of a plate matrix, a placement matrix LOC and a value matrix, and finally obtaining an optimal layout result. The practical engineering problem of mixed layout optimization of the manufactured parts in various shapes can be solved.

Description

technical field [0001] The invention belongs to the technical field of manufacturing and transportation for the intelligent layout of various shapes of manufactured parts, and in particular relates to a real-time intelligent, multi-task and robust multi-shaped layout optimization method and system for manufactured parts Background technique [0002] The layout of two-dimensional parts is the most common layout problem in actual production, and it is widely used in machinery manufacturing, light industry, clothing and printing industries. In the traditional nesting methods, most of them only study the simple and common nesting method of rectangular pieces. Because the shape of rectangular pieces is simple, collision detection can be performed quickly. However, with the rapid development of industry, the production speed is getting faster and faster, and various shapes of manufactured parts may be required in one production, such as common circular parts, right triangle parts ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/04G06F30/17
CPCG06Q10/04G06Q50/04G06F30/17Y02P90/30
Inventor 钟睿任和
Owner BEIHANG UNIV
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