CN219850879U - General convenient fruit image acquisition device - Google Patents

Abstract

The utility model discloses a general and convenient fruit image acquisition device, which comprises a fruit and vegetable conveying mechanism and an image acquisition box, wherein the fruit and vegetable conveying mechanism comprises a conveying chain and a plurality of supporting rings arranged on the conveying chain, a first group of cameras and a second group of cameras are arranged in the image acquisition box, and the first group of cameras and the second group of cameras are respectively positioned above and below the fruit and vegetable conveying mechanism in the image acquisition box. According to the general and convenient fruit image acquisition device, the retainer plate is annular, the first group of cameras and the second group of cameras are arranged above and below the fruit and vegetable conveying mechanism in a matched mode, upper and lower images of fruits and vegetables are acquired from the upper and lower sides of the fruits and vegetables, more and more comprehensive image data of the fruits and vegetables can be acquired, and therefore the fruits and vegetables can be classified more accurately; in the collecting process, rotation of fruits and vegetables is not needed, and the method is suitable for collecting classified images of the fruits and vegetables in a sphere-like shape and is also suitable for collecting classified images of the fruits and vegetables in a non-sphere-like shape.

Description

General convenient fruit image acquisition device

Technical Field

The utility model relates to the technical field of fruit and vegetable grading image acquisition, in particular to a general and convenient fruit image acquisition device.

Background

Grading is an important link of commercialized treatment of fruits and vegetables, and is mainly to sort according to quality characteristics such as weight, size, color, defects and the like of the fruits and vegetables. With the development of science and technology, fruit and vegetable classification has been developed from traditional manual classification to automatic classification based on image recognition technology. The machine automatic grading based on the image recognition technology, specifically, adopts machine vision (camera) to collect surface images of fruits and vegetables, then processes the collected images by means of a computer, extracts quality characteristics of the fruits and vegetables such as size, color, defects and the like, and sorts the fruits and vegetables according to grading standards. The image acquisition is used as the basis of fruit and vegetable image identification and automatic classification, and directly influences the accuracy of fruit and vegetable classification.

The fruit and vegetable grading image acquisition device mainly comprises a fruit and vegetable conveying mechanism, wherein an image acquisition box is arranged on a conveying path of the fruit and vegetable conveying mechanism, and a camera for acquiring fruit and vegetable images is arranged in the image acquisition box. The fruit and vegetable conveying mechanism is commonly disclosed in patent document 200310116086.6, and comprises a conveying chain and rollers arranged on the conveying chain at intervals; this kind of fruit vegetables conveying mechanism can carry the fruit vegetables to in carrying the in-process, let the fruit vegetables rotate in the image acquisition box, realize the comprehensive collection of fruit vegetables image, however, because the axial of roller is spacing-free, make the axial position of fruit vegetables on the roller indefinite, the camera is taken the image, focus when getting the image and is set up difficultly, and when fruit vegetables fall to carry on two adjacent rollers, two adjacent rollers do not constitute independent transport to fruit vegetables, the weight acquisition of the integrated fruit vegetables of in-process of carrying is difficult to, make need outside fruit vegetables weight fruit vegetables image acquisition device, establish the weight acquisition mechanism of fruit vegetables in addition.

For this reason, a fruit and vegetable conveying mechanism using a tray for conveying is also known in the prior art, as disclosed in the patent square of chinese patent No. 202022532365.2. This kind of fruit vegetables conveying mechanism, under the spacing effect of tray, fruit vegetables position determination, be difficult for the off-set, the camera focuses and sets up relatively simpler, and when adopting independent tray to carry fruit vegetables, can conveniently directly integrate weighing machine on fruit vegetables conveying route to construct, but when adopting this kind of fruit vegetables conveying mechanism to carry fruit vegetables, because the existence of tray, can't gather the image of fruit vegetables bottom, fruit vegetables image data is incomplete, is unfavorable for the fruit vegetables quality classification based on the image.

In addition, some existing fruit and vegetable grading image acquisition devices are used for comprehensively acquiring fruit and vegetable images, most fruits and vegetables are required to roll, so that the fruit and vegetable grading image acquisition device is capable of only carrying out image acquisition on fruits and vegetables like balls, is not suitable for image acquisition of special-shaped fruits and vegetables, is like rolling of fruits and vegetables in a tray, is rubbed with the tray, is easy to hurt fruits and vegetables in the grading process, and further influences the quality of fruits and vegetables.

Disclosure of Invention

The utility model aims to provide a general and convenient fruit image acquisition device.

The technical scheme for realizing the aim of the utility model is as follows: the utility model provides a general convenient fruit image acquisition device, includes fruit vegetables conveying mechanism and image acquisition box, fruit vegetables conveying mechanism include the conveyer chain with a plurality of backing rings of installation on the conveyer chain, a plurality of the backing rings are followed the delivery path interval distribution of conveyer chain, fruit vegetables conveying mechanism's delivery path passes the image acquisition box, be equipped with first group camera and second group camera in the image acquisition box, first group camera with the second group camera is located respectively in the image acquisition box fruit vegetables conveying mechanism's upper and lower side, first group camera with in the lens of second group camera all is towards the delivery path of fruit vegetables conveying mechanism in the image acquisition box.

Further, the trunnion ring includes an annular body and a rubber layer surface-wrapped around the annular body. When fruits and vegetables are conveyed by the supporting ring on the conveying chain mechanism, the contact surface between the supporting ring and the fruits and vegetables is small, so that the fruits and vegetables are prevented from being damaged due to the small contact surface and the strong local pressure of the fruits and vegetables, and preferably, the surface of the annular body is wrapped with a rubber layer.

Further, more than three protrusions are radially inwards arranged on the inner wall of the trunnion ring, and the protrusions are uniformly distributed along the circumferential direction of the trunnion ring. When fruits and vegetables are conveyed on the supporting ring, the protrusions are in contact with the fruits and vegetables, and support and hold the fruits and vegetables; the protruding setting can reduce the contact surface when fruit vegetables are carried, that is to say, can further reduce the surface that shelters from of fruit vegetables, when making fruit vegetables gather surface image, the data of gathering can be more comprehensive, does benefit to the more accurate grading of follow-up.

According to the general and convenient fruit image acquisition device, the retainer plate is annular, when the retainer plate is used for conveying fruits and vegetables to acquire images, the upper parts of the fruits and vegetables are exposed, and the lower parts of the fruits and vegetables are exposed, in this case, the first group of cameras and the second group of cameras are arranged above and below the fruit and vegetable conveying mechanism in a matching manner, and the upper parts and the lower parts of the fruits and vegetables are acquired through the first group of cameras and the second group of cameras, so that compared with the existing image acquisition device which cannot acquire images at the bottoms of the fruits and vegetables due to the shielding of the tray, the image acquisition device can acquire more and more comprehensive image data of the fruits and vegetables, and can accurately classify the fruits and vegetables; in the whole collection process, fruits and vegetables are not required to rotate, so that the method is not only applicable to the collection of classified images of the fruits and vegetables in a sphere-like shape, but also applicable to the collection of classified images of the fruits and vegetables in a non-sphere-like shape, and has wide application range and good universality, and meanwhile, the fruits and vegetables do not rotate or shift, so that the fruits and vegetables are not injured due to friction between the fruits and vegetables and the carrier ring.

In addition, when vegetables and fruits are carried and conveyed by the supporting ring, on one hand, the supporting ring limits the positions of the fruits and the vegetables, ensures that the positions of the fruits and the vegetables are not easy to deviate, is always positioned on the same straight conveying path, and is convenient for focusing setting during image acquisition; and under the independent fruit vegetables of carrying of backing ring, can conveniently integrate weighing machine construct on fruit vegetables delivery route, let the weight of fruit vegetables also can once only measure, that is to say, its expansion of the function of weighing of being convenient for, the hierarchical image acquisition of fruit that conveniently satisfies more different demands.

Drawings

Fig. 1 is a schematic diagram of a front view of a general portable fruit image acquisition device according to the present utility model;

fig. 2 is a schematic top view of a fruit and vegetable conveying mechanism of the general and convenient fruit image acquisition device of the utility model;

fig. 3 is a cross-sectional view of a retainer ring of the general portable fruit image capture device of the present utility model.

Detailed Description

The following describes in detail the specific embodiments of the general and convenient fruit image acquisition device according to the present utility model with reference to the accompanying drawings:

as shown in fig. 1 to 3, a general and convenient fruit image acquisition device comprises a fruit and vegetable conveying mechanism 1 and an image acquisition box 2, wherein the fruit and vegetable conveying mechanism 1 comprises a conveying chain 11 and a plurality of backing rings 12 arranged on the conveying chain 11, the backing rings 12 are distributed along the conveying path of the conveying chain 11 at intervals, the conveying path of the fruit and vegetable conveying mechanism 1 passes through the image acquisition box 2, a first group of cameras 21 and a second group of cameras 22 are arranged in the image acquisition box 2, the first group of cameras 21 and the second group of cameras 22 are respectively positioned above and below the fruit and vegetable conveying mechanism 1 in the image acquisition box 2, and the lenses of the first group of cameras 21 and the second group of cameras 22 face the conveying path of the fruit and vegetable conveying mechanism 1 in the image acquisition box 2.

The fruit image acquisition device is universal and convenient, and when in operation, fruits and vegetables are placed on the retainer ring 12 of the fruit and vegetable conveying mechanism 1 and are driven by the conveying chain 11 to be conveyed; in the conveying process, after fruits and vegetables are conveyed into the image collecting box 2, the first group of cameras 21 and the second group of cameras 22 are respectively used for photographing the fruits and vegetables from the upper side to the lower side of the fruits and vegetables, and the upper surface image and the lower surface image of the fruits and vegetables are obtained, so that the fruits and vegetables are classified.

According to the general and convenient fruit image acquisition device, the retainer ring 12 is annular, when the fruit and vegetable is conveyed to acquire images, the upper part of the fruit and vegetable is exposed, and the lower part of the fruit and vegetable is also exposed, in this case, the first group of cameras 21 and the second group of cameras 22 are arranged above and below the fruit and vegetable conveying mechanism 1 in a matching way, and the upper part and the lower part of the fruit and vegetable images are acquired from the upper part and the lower part of the fruit and vegetable through the first group of cameras 21 and the second group of cameras 22, so that compared with the existing image acquisition device which cannot acquire images at the bottom of the fruit and vegetable due to the shielding of the tray, more and more comprehensive image data of the fruit and vegetable can be acquired, and more accurate classification of the fruit and vegetable can be realized; in the whole collection process, fruits and vegetables are not required to rotate, so that the method is not only applicable to the collection of classified images of the fruits and vegetables in a sphere-like shape, but also applicable to the collection of classified images of the fruits and vegetables in a non-sphere-like shape, and has wide application range and good universality, and meanwhile, the fruits and vegetables do not rotate or shift, so that the fruits and vegetables are not injured due to friction between the fruits and vegetables and the carrier ring.

In addition, according to the general and convenient fruit image acquisition device, when vegetables and fruits are carried and conveyed through the support ring 12, on one hand, the support ring 12 limits the positions of the fruits and vegetables, the positions of the fruits and vegetables are determined, the fruits and vegetables are not easy to deviate, and the fruits and vegetables are always positioned on the same straight line conveying path, so that focusing setting is facilitated during image acquisition; and under the independent conveying fruit vegetables of backing ring 12, can conveniently integrate weighing machine construct on fruit vegetables delivery route, let the weight of fruit vegetables also can once only measure, that is to say, its expansion of being convenient for weighing function, the hierarchical image acquisition of fruit that conveniently satisfies more different demands.

In the general and convenient fruit image capturing device of the present utility model, preferably, the trunnion ring 12 includes an annular body 121 and a rubber layer 122 wrapped on the surface of the annular body 121. When fruits and vegetables are conveyed by the carrier ring 12 on the conveying chain mechanism 11, the contact surface between the carrier ring 12 and the fruits and vegetables is small, so as to avoid damage of the fruits and vegetables due to the small contact surface and the strong local pressure of the fruits and vegetables, and preferably, the surface of the annular body 121 is wrapped with the rubber layer 122.

In the general and convenient fruit image collecting device of the present utility model, preferably, more than three protrusions 120 are radially inward arranged on the inner wall of the trunnion ring 12, and the protrusions 120 are uniformly distributed along the circumferential direction of the trunnion ring 12. When fruits and vegetables are conveyed on the trunnion ring 12, the protrusions 120 contact with the fruits and vegetables to support and lift the fruits and vegetables; the protrusion 120 can reduce the contact surface during conveying fruits and vegetables, that is, can further reduce the shielding surface of fruits and vegetables, so that the collected data can be more comprehensive when fruits and vegetables collect surface images, and the later more accurate grading is facilitated.

The first set of cameras 21 and the second set of cameras 22 may each comprise one, two or more cameras.

It should be understood by those skilled in the art that the present utility model may be embodied in many different forms without departing from the spirit or essential characteristics thereof.

Claims (3)

1. The utility model provides a general convenient fruit image acquisition device, includes fruit vegetables conveying mechanism and image acquisition box, its characterized in that: the fruit and vegetable conveying mechanism comprises a conveying chain and a plurality of backing rings arranged on the conveying chain, the backing rings are distributed along the conveying path of the conveying chain at intervals, the conveying path of the fruit and vegetable conveying mechanism penetrates through the image collecting box, a first group of cameras and a second group of cameras are arranged in the image collecting box, the first group of cameras and the second group of cameras are respectively positioned on the upper part and the lower part of the fruit and vegetable conveying mechanism in the image collecting box, and lenses of the first group of cameras and the second group of cameras face the conveying path of the fruit and vegetable conveying mechanism in the image collecting box.

2. The universal portable fruit image acquisition device of claim 1, wherein: the backing ring comprises an annular body and a rubber layer wrapped on the surface of the annular body.

3. The universal portable fruit image acquisition device of claim 1, wherein: more than three protrusions are radially inwards arranged on the inner wall of the trunnion ring, and the protrusions are uniformly distributed along the circumferential direction of the trunnion ring.