CN-224218462-U - Image acquisition device for seed detection

Abstract

The utility model relates to the technical field of seed detection, in particular to an image acquisition device for seed detection, which comprises an objective table, a connecting member, an image acquisition device and a locking mechanism, wherein the objective table is used for placing seeds to be detected, the objective table is provided with a fixed rod, the connecting member can slide up and down along a fixed rod shaft, the connecting member is provided with a locking piece, the image acquisition device is movably connected to the connecting member through a movable frame and performs height adjustment along with the up-and-down sliding of the connecting member.

Inventors

• ZHANG YULIN
• QU FEI
• LIANG HUA
• SUN BIN
• LIU PENG
• Bi Yuanzun
• LI MING
• GENG DAN
• LI XIN

Assignees

• 大连海关技术中心

Dates

Publication Date

20260508

Application Date

20250728

Claims (6)

1. 1. An image acquisition device for seed detection, characterized by comprising; The seed detection device comprises an object stage (1), wherein the object stage (1) is used for placing seeds to be detected, and a fixing rod (2) is arranged on the object stage (1); the connecting component (3), the connecting component (3) can slide up and down along the axial direction of the fixed rod (2), and a locking piece (4) is arranged on the connecting component (3); The image acquisition device is movably connected to the connecting member (3) through the movable frame (5) and performs height adjustment along with the up-and-down sliding of the connecting member (3); and the locking mechanism is arranged on the connecting member (3) and is used for locking the angle of the image acquisition device.
2. 2. The image acquisition device for seed detection according to claim 1, wherein the locking mechanism comprises a screw rod (6) which is connected to two sides of the connecting member (3) in a threaded manner, and the image acquisition device is locked when one end of the screw rod (6) is tightly abutted against a hinge shaft on the image acquisition device.
3. 3. The image acquisition device for seed detection according to claim 2, wherein a connecting bracket (7) is movably sleeved on the threaded rod (6), the other end of the connecting bracket (7) is connected with the image acquisition device, and a fastening nut (8) is further connected with the threaded rod (6) in a threaded manner.
4. 4. The image acquisition device for seed detection according to claim 1, wherein the image acquisition device comprises; An optical lens (10) configured to collect an optical image of the seed; an industrial camera (11) disposed in alignment with an optical axis of the optical lens (10) and configured to convert an optical image into a digital image signal.
5. 5. The image capturing device for seed detection according to claim 1, further comprising a light supplementing unit provided on the optical lens (10).
6. 6. The image acquisition device for seed detection according to claim 5, wherein the light supplementing unit is a plurality of LED light sources (9) circumferentially equidistantly arranged with a central axis of the optical lens (10).

Description

Image acquisition device for seed detection Technical Field The utility model relates to the technical field of seed detection, in particular to an image acquisition device for seed detection. Background In the field of agricultural seed quality detection, high-precision image acquisition of single seed is a key link for realizing seed variety identification, defect detection and quality grading, currently, the main stream seed detection image acquisition device mainly adopts a fixed structural design, the height and angle adjustment range of an image acquisition component (such as a camera and a lens) are limited, the detection requirements of seeds with different sizes and shapes are difficult to adapt, for large-particle seeds (such as corn and peanut), the depth of field is insufficient due to too short working distance of the lens with a fixed height, the image edge is fuzzy, for small-particle seeds (such as rapeseeds and sesame), the resolution is reduced after long-distance shooting, fine defects are difficult to identify, and the traditional device usually only supports vertical nodding single visual angle, can not capture the side surface and inclined surface characteristics of the seeds, and the condition of missed detection of irregular defects occurs. Based on the above, it is necessary to design an image acquisition device for seed detection to solve the above problems. Disclosure of utility model The utility model provides an image acquisition device for seed detection, which aims to solve the problems in the prior art. The technical problems solved by the utility model are realized by adopting the following technical scheme: The utility model provides an image acquisition device for seed detection, includes objective table, connecting element and image acquisition device and locking mechanical system, be used for placing the seed that waits to detect on the objective table, just be equipped with the dead lever on the objective table, connecting element can follow the dead lever axle and slide from top to bottom, just be equipped with the locker on the connecting element, image acquisition device passes through fly frame swing joint on connecting element to follow connecting element's upper and lower slip and carry out altitude mixture control, locking mechanical system locates on the connecting element for lock image acquisition device's angle. Preferably, the locking mechanism comprises a screw rod which is connected with two sides of the connecting member in a threaded manner, and the image acquisition device is locked when one end of the screw rod is tightly abutted against the hinge shaft on the image acquisition device. Preferably, the connecting support is movably sleeved on the threaded rod, the other end of the connecting support is connected with the image acquisition device, and the threaded rod is further connected with a fastening nut in a threaded manner. Preferably, the image capturing device comprises an optical lens configured to capture an optical image of the seed, and an industrial camera disposed in alignment with an optical axis of the optical lens and configured to convert the optical image into a digital image signal. Preferably, the image acquisition device further comprises a light supplementing unit arranged on the optical lens. Preferably, the light supplementing unit is a plurality of LED light sources which are circumferentially equidistant by the central axis of the optical lens. The utility model has the advantages that the height of the image acquisition device can be adjusted as required by sliding the connecting member along the fixed rod, seeds with different sizes are adapted, the locking mechanism is abutted against the angle of the hinge shaft locking device through the screw rod, stable shooting at multiple angles is ensured, image deviation caused by improper shooting positions is avoided, the detection applicability is improved, meanwhile, the screw rod is matched with the fastening nut and the connecting support, the image acquisition device is doubly locked, the shaking or displacement of the device in the detection process is prevented, the definition and consistency of the image are ensured, the problems of ghost, blurring and the like caused by shaking are reduced, and the reliability of detection data is improved. Drawings In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from them without inventive faculty for a person skilled in the art. FIG. 1 is a schematic view of an isometric structure according to the present utility model; FIG. 2 is a schematic diagram of an isometric structure according to the present utility model;