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A speed measurement algorithm for automatic material identification of color sorter

An automatic identification and color sorter technology, applied in the field of color sorters, can solve the problems of different instantaneous speeds, failure to pick, and different proportions of materials, so as to achieve precise removal and improve the effect of color sorting.

Active Publication Date: 2019-07-12
ANHUI VISION OPTOELECTRONICS TECH
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an algorithm for automatic identification and speed measurement of materials in a color sorter, which can well solve the problem that the instantaneous speed of the center line taken by the camera is different due to the different specific gravity of the materials, which causes the spray valve to reject at regular intervals. The problem of inaccurate or inaccessible selection of target materials has greatly improved the performance of the color sorter

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  • A speed measurement algorithm for automatic material identification of color sorter
  • A speed measurement algorithm for automatic material identification of color sorter
  • A speed measurement algorithm for automatic material identification of color sorter

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Embodiment Construction

[0024] The invention discloses an algorithm for automatic material identification and speed measurement of a color sorter, which comprises the following steps:

[0025] a. It is set that the same material must be photographed at least twice in two adjacent cycles to obtain time and displacement information;

[0026] b. Judging whether the images taken twice are complete. Assuming that the images taken are incomplete, theoretically, the identity of the material can be identified by identifying part of the texture characteristics of the material, and the instantaneous speed can be measured; however, the amount of information for identifying the texture characteristics of the material is very large , the computing workload is huge, the operating cost of the system is too high, and the practical value is too low, which is not advisable;

[0027] c. Recognizing the complete image can be realized by the texture, shape and size of the material. Obviously, the texture recognition cann...

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Abstract

The invention discloses an algorithm for automatic material identification and speed measurement of a color sorter, which comprises the following steps: (1) determining the shooting cycle, (2) determining the physical height of the shooting area, (3) determining the material identification method, (4) taking images: the same The material has been photographed at least twice in two adjacent cycles. (5) Speed ​​measurement, through precise recognition algorithm, and setting a reasonable shooting cycle and physical height of the shooting area, to measure the real-time speed of each material , and then set the time point and duration of the spray valve action according to this speed and its position information, so that each material can be accurately removed, and the color sorting effect of the color sorter is greatly improved.

Description

technical field [0001] The invention relates to the field of color sorters, in particular to an algorithm for automatic identification and speed measurement of materials in a color sorter. Background technique [0002] Most of the traditional color sorter systems adopt the linear array CCD scheme. Since the physical height of the shooting area of ​​the linear array camera is very narrow, which is much smaller than the linear dimension of the falling material, the same material will be photographed multiple times, and the images obtained each time are different parts of the material. , analyze and process each time and send execution instructions to regularly remove target defective materials to achieve the selection goal; for this reason, the linear array CCD solution must preset the material movement speed as a fixed value, and set the time point of the spray valve action accordingly and duration. [0003] However, the specific gravity of the same material, such as grain, ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P5/18
Inventor 卢业青裴晓旭周飞
Owner ANHUI VISION OPTOELECTRONICS TECH
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