Customized product similarity judgment method based on product structure

A technology of product structure and similarity, applied in the field of mass customization production, can solve the problems of insignificant calculation results and large amount of calculation, and achieve the effects of easy calculation, significant dissimilarity relationship, and accurate calculation

Active Publication Date: 2016-02-17
CHINA JILIANG UNIV
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Problems solved by technology

[0005] In order to overcome the disadvantages of the existing technology that the amount of calculation is large and the calculation results are not significant, the present invention reduces the dimensionality of the mapping space of the product structure by constructing the target product-query product library matrix and using the non-negative matrix decomposition technology. Provides a method for judging product similarity based on product structure

Method used

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  • Customized product similarity judgment method based on product structure
  • Customized product similarity judgment method based on product structure
  • Customized product similarity judgment method based on product structure

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Embodiment Construction

[0024] Further describe the present invention below in conjunction with accompanying drawing.

[0025] The algorithm principle flow process of the present invention is as figure 1 shown.

[0026] Take the structural data of a certain series of electric lamps as the object, and explain, such as figure 2 as shown, figure 2 Middle D 1 ,D 2 ,D 3 ,D 4 ,D 5 ,D 6 ,D 7 and D 8 is to query the product structure, S 1 It is a customized product structure, and the codes of each part are shown in Table 1 below. After receiving the customer's demand order, the designer needs to retrieve the product that is most similar to the customer's customized product from the existing products (that is, the query product), and reuse and modify it on the basis of it, so as to improve the design production efficiency. Shorten lead times.

[0027] Table 1

[0028]

[0029] Take the target product structure S 1 As an example, construct an adjacency matrix as shown in Table 2 below:

[...

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Abstract

The invention provides a customized product similarity judgment method based on the product structure and relates to the field of mass customized production. According to the method, at first, an adjacent matrix is used for expressing the subordination relation between parts in a product structure; secondly, column vector recombination is carried out on a part matrix representing the single product structure to form an adjacent vector of the single product structure, and on this basis, adjacent vectors of target products and inquiry products are combined to form a bank matrix; a target product and inquiry product bank matrix is decomposed based on a non-negative matrix decomposition algorithm, and dimensionality reduction of the product structure is achieved; finally, the product similarity is judged by calculating the distance between the vectors of the product structure after dimensionality is reduced. The customized product similarity judgment method based on the product structure can reduce the operation steps, improve accuracy and enhance similarity significance.

Description

technical field [0001] The invention belongs to the technical field of mass customization production, and relates to a design methodology, in particular, to a method for retrieving existing product structures similar to user-customized product structures at the design stage of mass customization production. Background technique [0002] Mass customization is a kind of integration of enterprises, customers, suppliers and the environment, under the guidance of system thinking, with the perspective of overall optimization, making full use of the existing resources of the enterprise, in the standardization of technology, modern design methodology, information With the support of technology and advanced manufacturing technology, etc., according to the individual needs of customers, the production mode of customized products and services is provided with low cost, high quality and high efficiency of mass production. [0003] The basic idea of ​​mass customization is, based on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/903
Inventor 徐新胜王诚朱凡凡
Owner CHINA JILIANG UNIV
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