Product multi-information fusion identification failure remedying method based on D-S evidence theory

A technology of multi-information fusion and evidence theory, applied in the field of product identification failure remediation, can solve problems such as product individual tracking disconnection, product multi-information fusion identification failure, etc.

Active Publication Date: 2014-10-08
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0003] In order to overcome the shortcomings of existing methods that lead to product individual tracking and disconnection during the producti

Method used

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  • Product multi-information fusion identification failure remedying method based on D-S evidence theory
  • Product multi-information fusion identification failure remedying method based on D-S evidence theory
  • Product multi-information fusion identification failure remedying method based on D-S evidence theory

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Embodiment Construction

[0046] refer to figure 1 . The specific steps of the product multi-information fusion identification failure remedy method based on D-S evidence theory in the present invention are as follows:

[0047] Step 1. Establish a multi-source information model for scattered and incomplete products.

[0048] Analyze information sources related to product identification, including product physical information and manufacturing process information, and introduce multi-information fusion into product representation failure remedy. In order to facilitate the mathematical description of product multi-source information, a multi-source information model is set up, where The object set is

[0049] P={x 1 ,x 2 ,x 3 ,...x i} (1)

[0050] is the main body of the multi-source information, element x i , i={1,2,3,.....n} means different information sources; the attribute set is

[0051] C={c 1 ,c 2 ,c 3 ,...c j} (2)

[0052] It is the description of the product's external informat...

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Abstract

The invention discloses a product multi-information fusion identification failure remedying method based on the D-S evidence theory. The technical problem that tracking disconnection is caused by an existing method in the production process of individual products is solved. According to the technical scheme, the method comprises the steps that multi-source information correlation and data structure existing in the product physical and manufacturing process is analyzed, a product scattering and incomplete multi-source information model needed in the scattering process is built, the feature data of failure identification parts and product historical database similarity measure are calculated through a class-center-based Euclidean distance and improved variable coefficient weighting method, fusion identification is carried out on a feature layer through the D-S evidence theory, the identifications of the failure products are effectively recovered and remedied, and then the technical problem that tracking disconnection is caused in the production process of the individual products due to DM code failure is solved. Experimental results show that the identification accuracy of preventing tracking failure is larger than 95%, efficiency is high, recovering and remedying are reliable, and practicability is good.

Description

technical field [0001] The invention relates to a product identification failure remedy method, in particular to a product multi-information fusion identification failure remedy method based on D-S evidence theory. Background technique [0002] The document "An image comprehensive preprocessing method for workpiece 3D barcode recognition. Journal of Xi'an University of Technology, 2002, 18(4): 332-336." discloses an image comprehensive preprocessing method for workpiece 3D barcode recovery and recognition The method is to laser etch the barcode on the surface of the workpiece, and an industrial camera equipped with an auxiliary light source to capture the 3D barcode image, after histogram equalization, image projection transformation, adaptive threshold method bar-space signal extraction, bar-space information authenticity correction, etc. After processing, the workpiece number is finally obtained by decoding according to the national standard, which partially meets the requ...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 何卫平王健李夏霜郭改放张衡
Owner NORTHWESTERN POLYTECHNICAL UNIV
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