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A method and device for adaptive correction of the optical system of an intelligent color sorter

An optical system and correction device technology, applied in optics, optical components, instruments, etc., can solve the problems of insufficient uniformity of illumination of the light source device of the color sorter, reduction of CCD signal-to-noise ratio, poor consistency, etc.

Active Publication Date: 2018-06-12
NANJING FORESTRY UNIV
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Problems solved by technology

Due to the harsh working environment of the color sorter and the continuation of the working time, the performance of the light source lamp beads will change, resulting in the illuminance of the light source device of the color sorter is not uniform and the consistency is poor; The lattice cannot guarantee exactly the same stability, and during its working process, the signal-to-noise ratio of the CCD decreases sharply with the increase of temperature, which seriously affects the working efficiency and color sorting effect of the color sorter, and restricts the development of the color sorting industry. Further development

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  • A method and device for adaptive correction of the optical system of an intelligent color sorter
  • A method and device for adaptive correction of the optical system of an intelligent color sorter
  • A method and device for adaptive correction of the optical system of an intelligent color sorter

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with specific examples.

[0020] Such as figure 1 As shown, the adaptive correction device for the optical system of the intelligent color sorter includes a microcontroller, a digital constant current source module, an illuminance sensor module, an LED light source temperature detection module, a background plate adjustment module and an FPGA signal processing module. The digital constant current source module, illuminance sensor module, LED light source temperature detection module, background board adjustment module and FPGA signal processing module are all connected to the microcontroller; the microcontroller is connected to the cooling device; the FPGA signal processing module is connected to the linear array CCD camera ; The microcontroller is connected to the main control board module of the color sorter. in,

[0021] The digital constant current source module analyzes the data collected by the...

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Abstract

The invention discloses an adaptive correction method and device for the optical system of an intelligent color sorter, which realizes the automatic correction of the optical system of the intelligent color sorter with a microcontroller as the core and integrated intelligent control technology, FPGA-based image processing technology, and PWM control technology. Adaptive correction, the device can automatically monitor the change of the light field caused by the aging of the light source, automatically calculate and set various detection parameters according to the change of the light field, and ensure that the equipment provides consistent detection sensitivity when the environment changes, so that the optical system can be adjusted To the best working environment of the camera, it provides favorable conditions for the realization of subsequent image processing algorithms.

Description

technical field [0001] The invention relates to the technical field of intelligent color sorter systems, in particular to an adaptive correction method and device for an optical system of an intelligent color sorter. Background technique [0002] The optical system is the key to image information collection and material screening of the color sorter system. A stable and reliable optical system provides favorable conditions for the realization of subsequent image processing algorithms. Due to the harsh working environment of the color sorter and the continuation of the working time, the performance of the light source lamp beads will change, resulting in insufficient uniformity and poor consistency of the illumination of the light source device of the color sorter; The lattice cannot guarantee exactly the same stability, and during its working process, the signal-to-noise ratio of the CCD decreases sharply with the increase of temperature, which seriously affects the working ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/00B07C5/342
CPCB07C5/342G02B27/0025
Inventor 倪超李华赛汪学良
Owner NANJING FORESTRY UNIV