Multicolour LED vision image light source system for automatic grading of fruits

An automatic grading and visual image technology, applied in sorting, instruments, character and pattern recognition, etc., can solve the problems of low accuracy, high labor intensity, low efficiency, etc., and achieve stable performance, high resolution, and low cost Effect

Inactive Publication Date: 2009-04-15
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After picking, there are individual differences in size, maturity, nutritional content, surface damage, etc., and the current manual judgment operation is not only inefficient and accurate, but also high in labor intensity and easy to cause fatigue

Method used

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  • Multicolour LED vision image light source system for automatic grading of fruits
  • Multicolour LED vision image light source system for automatic grading of fruits
  • Multicolour LED vision image light source system for automatic grading of fruits

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Embodiment Construction

[0017] Such as figure 1 As shown, two LED array boards 1 and 2, which are composed of emitting red light, blue light, green light and infrared light emitting diodes, are symmetrically arranged on both sides of the fruit support platform, and the LED array boards 1 and 2 are placed obliquely at an angle of 45°; The digital camera 5 is vertically placed at 1 meter above the fruit supporting platform 4, and the computer 6 is connected with the digital camera 5 through a USB interface; the digital camera 5 can be controlled by the computer 1 to obtain fruit reflectance spectrum images under different irradiation light sources.

[0018] Such as figure 2 As shown, the LED array board for emitting light source is composed of three small boards spliced ​​together, and each small board is composed of 10 red, blue, green, and infrared LEDs of the same color in the vertical direction and staggered in the horizontal direction. The placement distance between the LEDs is 10cm.

[0019] S...

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PUM

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Abstract

The invention discloses a multicolor LED visual image light source system for the automatic hierarchy of fruit. LED array plates which are transmission light sources consisting of diodes transmitting red light, blue light, green light and infrared light are symmetrically arranged on the two sides of a fruit support table; and the LED array plates are placed obliquely at an angle of 45 degrees. A digital camera is vertically arranged above the fruit support table and is connected with a computer through a USB interface. Fruit reflection spectrum images of different irradiation light sources can be obtained through the digital camera controlled by the computer. The red light, blue light, green light and infrared light LEDs are used for fruit selection with low cost and stable performance. Digitalized images with high resolution can be easily obtained through the image acquisition carried out by the digital camera controlled by the microcomputer. The system has the advantages that the system can be matched with a fruit selection flow line, and can realize the collaborative operation of fruit feeding, positioning, light source adjustment and image acquisition.

Description

technical field [0001] The invention relates to a multi-color LED visual image light source system for automatic grading of fruits. Background technique [0002] Fruit grade machine sorting is an important part of automatic processing and packaging of fruits after picking. After picking, there are individual differences in size, maturity, nutritional content, surface damage, etc. The current manual judgment operation is not only inefficient and accurate, but also highly labor-intensive and prone to fatigue. The use of computer vision image processing can automatically determine the size, maturity, nutritional content and surface damage of fruits and other indicators that affect fruit grades, which will greatly improve the automation level of fruit sorting. One of the key components of fruit grade sorting equipment is the computer image acquisition device. Contents of the invention [0003] The object of the present invention is to provide a multi-color LED visual image l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07C5/342G06K9/20
Inventor 杨海清何勇鲍一丹
Owner ZHEJIANG UNIV
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