Detection method for copper grade of copper block, and detection system thereof

A detection method and technology of copper blocks, applied in the direction of measuring devices, material analysis through optical means, instruments, etc., can solve problems such as troublesome operation, affecting the accuracy of the model, and having no physical meaning

CN103063674AInactive Publication Date: 2013-04-24ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2013-04-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a detection method for a copper grade of a copper block. The method comprises the steps of (1) acquiring images and extracting ROI; (2) extracting texture features from the ROI; (3) judging quality of the ROI; (4) calculating a color vector angle; (5) determining types of a to-be-detected copper block; and (6) calculating the copper grade. The detection method can automatically finish copper block section positioning and ROI acquisition under a complex background, select out the ROI with qualified quality base on the texture features and finally estimate the copper grade rapidly by mixed Gaussian regression with relatively high precision. The invention also discloses a detection system for the copper grade. The detection system is based on an embedded platform of ARM + DSP dual-core chips and acquires the image by using an industrial camera. The detection system is easy to carry, greatly reduces cost, is very suitable for productization, and has the advantages of full automation, no contact, no damage, continuation, real time and high accuracy.
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Description

technical field

[0001] The invention belongs to the technical field of metallurgical process testing, and in particular relates to a copper grade detection method of a copper block and a detection system thereof. Background technique

[0002] The copper processing process needs to be able to quickly and accurately measure the quality index of the copper block about the copper grade of the sample. The online detection of copper grade is very important for judging whether the redox process is completed in a timely and efficient manner.

[0003] In copper processing, copper grade is a key quality parameter for automatic control. However, due to factors such as high temperature and corrosion, online detection of this parameter has become a technical problem in the application of complete control systems. Under the existing technology, copper grade detection generally adopts the detection method of offline sampling inspection and sending to the laboratory for testing, and most o...

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Embodiment Construction

[0065] In order to describe the present invention more specifically, the detection system and its detection method of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0066] Such as figure 1 As shown, a copper grade detection system for copper blocks includes: an image acquisition unit, an image processing unit and a man-machine interface unit; wherein:

[0067] The image acquisition unit is used to acquire the sample image of the copper block to be tested; in this embodiment, the image acquisition unit adopts the industrial camera model AFT-902HC of AFT Optoelectronics Technology Company. The camera has a pixel size of 752×582, adopts 1 / 3″SONY CCD image sensor, supports NTSC / PAL video system, comes with backlight compensation, small size, and low power consumption.

[0068] The image processing unit is used to extract the ROI from the sample image, perform texture feature extraction and quality ...