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Signal correction method and device and sorting equipment

A correction method and signal technology, applied in the field of photoelectric sorting, can solve the problems of material sorting accuracy reduction, decrease, and unstable optical signal of sorting equipment, so as to improve stability, improve sorting performance, and improve sorting efficiency. The effect of accuracy

Pending Publication Date: 2022-07-01
HEFEI MEIYA OPTOELECTRONICS TECH
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Problems solved by technology

However, the performance of the lighting source and spectral sensor in the sorting equipment decreases with the increase of the use time, coupled with the influence of the environmental characteristics of the sorting equipment and the temperature characteristics of the lighting source and spectral sensor, etc., will cause the separation The optical signal collected by the sorting equipment is unstable, which leads to unstable sorting performance of the sorting equipment and a decrease in the accuracy of material sorting

Method used

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  • Signal correction method and device and sorting equipment
  • Signal correction method and device and sorting equipment
  • Signal correction method and device and sorting equipment

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Embodiment Construction

[0092] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0093] For ease of understanding, the words and expressions appearing in the embodiments of the present application are explained below.

[0094] Materials include food raw materials, waste and industrial raw materials.

[0095] Spectroscopic equipment consists of spectral sensors. Spectral sensors collect light signals, generate spectra or images, etc. Spectroscopic devices may include, but are not limited to, hyperspectral cameras, ...

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Abstract

The embodiment of the invention provides a signal correction method and device and sorting equipment, and the sorting equipment periodically collects first original light signals reflected by a first correction plate under the irradiation of a specified light source according to the interval of a first preset duration; determining a correction parameter of the optical signal based on the first original optical signal reflected by the first correction plate and the standard optical signal of the first correction plate; collecting a second original optical signal reflected by the material under the irradiation of the specified light source; correcting the second original optical signal based on the correction parameter to obtain a corrected optical signal of the material; and the materials are sorted through the correction light signals. According to the technical scheme of the embodiment of the invention, the stability of the optical signal can be improved.

Description

technical field [0001] The present application relates to the technical field of optoelectronic sorting, and in particular, to a signal correction method, device and sorting equipment. Background technique [0002] With the rapid development of economy and society, the application of automatic material sorting is becoming more and more extensive. At present, the working principle of the sorting equipment that realizes material sorting is: turn on the lighting source, use the spectral sensor to collect the light signal from the lighting source reflected by the material, analyze the light signal, and obtain the color, brightness and spectrum of the material. , and then classify and classify materials based on their optical properties. [0003] The above-mentioned sorting equipment can realize the sorting and grading of materials with slight chromatic aberration or spectral difference. However, the performance of the illumination light source and spectral sensor in the sortin...

Claims

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Application Information

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IPC IPC(8): B07C5/342B07C5/02B07C5/36
CPCB07C5/342B07C5/02B07C5/361B07C5/362
Inventor 常宏井长龙刘增勇
Owner HEFEI MEIYA OPTOELECTRONICS TECH
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