Method and device for non-invasive detecting of soil and pesticide contamination on fruit surface

Abstract

The invention discloses a nondestructive testing fruit surface stool and pollutants method and device, and it uses the fruit transmission component to promote the fruit rolling forward, shooting the fluorescence image of various fruit parts; use the laser of LASER to irradiate the surface of fruits, and the fluorescence inspired by the fruit passes the lens to enter the machine installed with thefilter, and the election image intensifier, and the CCD camera to collect the different wavelength fluorescence image; using the computer system image acquisition card to get the image, and using theoptimized method to get the fluorescence images of three characterized wavelength, and using three typical wavelength spectral images to do the gray statistics and proportion image computing, and then, according to the calculation results, predicting pesticide residues and surface pollutants; in accordance with the instructions given by the computer signal, using high pressure jet mouth to blow the failed fruits to the poor fruit chute. The invention provides a fast NDT fruit pesticide residues and surface pollutants method and device.

Description

technical field [0001] The invention relates to the quality and safety detection technology of agricultural products, in particular to a method and device for detecting feces and pesticide pollutants on the fruit surface by using laser-induced fluorescence spectrum image technology. Background technique [0002] In order to prevent pests, fruit farmers have to spray a large amount of pesticides during the period from flowering to fruiting of fruit trees, so many fruits will have pesticide residues. There are two forms of fruit pesticide residues, one is attached to the surface of the fruit; the other is that the pesticide directly enters the roots, stems and leaves of the fruit during the growth of the plant. Pesticides are difficult to remove once they remain on the surface of the fruit. Triazoles, sulfur dioxide, etc. are also carcinogenic and allergenic. If pesticides are sprayed when apples, plums, apricots, and pears are fruiting, the pesticides will soak through the p...

AI Technical Summary

Problems solved by technology

Even if a cleaning device is used for fruits, there will still be many pollutants on the surface of fruits that cannot be completely eliminated

Therefore, when directly eating or squeezing the juice, the pesticide residues and surface pollution of the fruit become pathogens, which can easily lead to many human diseases, and some even cause serious health and social problems

[0004] At present, there is no technology and method for non-destructive and online detection of surface pesticide residues and fecal pollutants on fruits.

Images