Diffuse transmission spectrum and image information fusion method for detecting internal quality of honeydew melons on line and device

Abstract

The invention relates to a diffuse transmission spectrum and image information fusion method for detecting internal quality of honeydew melons on line and a device. The method comprises the following steps: establishing a honeydew melon internal quality nondestructive testing model and detecting the internal quality of a honeydew melon sample on line. The device comprises a conveying device, a signal control unit, a diffuse transmission spectrum acquisition device, a honeydew melon image acquisition device and a honeydew melon internal quality detection software system; drag rings for containing honeydew melons are arranged on the conveying device; each drag ring sequentially penetrates through an image acquisition chamber of the image acquisition device and a spectrum acquisition chamber of the diffuse transmission spectrum acquisition device; a layer sensor and two industrial cameras in the image acquisition chamber and a laser sensor and a near infrared spectrometer in the spectrum acquisition chamber are connected with a computer provided with the honeydew melon internal quality detection software system through the signal control unit. According to the method and the device, the internal quality of honeydew melons can be effectively detected, and the defect that internal quality indexes of the honeydew melons cannot be accurately detected through the image information is overcome.

Description

[0001] technical field [0002] The invention relates to an online non-destructive detection method and device for the internal quality of honeydew melons, in particular to an online detection method and device for the internal quality of honeydew melons using diffuse transmission spectrum and image information fusion. [0003] Background technique [0004] Honeydew melon is an important economic crop in Northwest China. For a long time, the maturity and quality classification of honeydew melons in the sales process has only been done by traditional manual methods or destructive sampling inspections. Good and bad are mixed, which reduces the market competitiveness and sales price of the fruit. To solve the above-mentioned problems of honeydew melons, we cannot simply rely on cultivating new varieties, improving planting and storage and transportation conditions, but more attention should be paid to quality testing and grading processing technologies in the process of commer...

AI Technical Summary

Problems solved by technology

[0005] Quality grading is an important link in the commercialization of honeydew melons. The main indicators that determine the quality of honeydew melons are its internal quality indicators (sugar content, hardness). Contains its internal quality information, as well as its external feature information, such as shape and size information, and the difference in the shape and size of honeydew melon has a significant impact on the diffuse transmission spectrum, which in turn affects the quality detection accuracy

Currently, there is no reliable way to remove these effects from diffuse transmission spectra

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