Hyperspectral seed scanning device

Abstract

The utility model relates to the technical field of seed scanning, and provides a hyperspectral seed scanning device, which comprises a platform, a seed detection unit and a seed conveying unit, and is characterized in that the seed detection unit comprises a portal frame, a lifting plate, a hyperspectral camera and a spotlight light source; the lifting plate is fixedly arranged on the portal frame in a lifting manner; the hyperspectral camera is fixedly arranged on the lifting plate; the spotlight light source is fixedly arranged on the portal frame, and the relative angle between the spotlight light source and the portal frame is adjustable; and the seed conveying unit is fixedly arranged on the platform and is positioned below the hyperspectral camera. By arranging the lifting plate, the hyperspectral camera can be driven to lift and move, and by matching with the spotlight light source capable of adjusting the angle, the scanning device can adapt to different working conditions of seed detection and provide a good illumination effect for seeds under different working conditions, so that the detection efficiency of the scanning device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seed scanning, in particular to a hyperspectral seed scanning device. Background Art

[0002] The quality and vitality of seeds directly affect the yield and quality of plants. During the seed testing process, a hyperspectral scanning device can be used to capture the spectral information of the seed surface to accurately evaluate the quality and vitality of seeds.

[0003] Patent publication number CN115413445A discloses an online seed quality detection device, comprising a seed delivery system for delivering target crop seeds; a seed flipping system for flipping target crop seeds when a flip trigger condition is met; an image acquisition system comprising a first camera and a second camera for collecting bilateral image data of the target crop seeds; and a spectral acquisition system for collecting spectral data of the target crop seeds. The image acquisition system is capable of simultaneously collecting bilateral image data of the crop seeds, and the addition of the spectral acquisition system enables spectral data collection. This high-throughput acquisition of internal and external information about the crop seeds provides a data analysis foundation for the screening of high-quality seeds.

[0004] In the above technical solution, a camera, a light source and a spectral acquisition system are set up to collect images and spectral information of the seed surface. When inspecting seeds under different working conditions, it is usually necessary to adjust the distance between the camera and the spectral information acquisition system and the seeds to adjust their scanning range. However, the adjustment of the camera and the spectral information acquisition system of this detection device is relatively inconvenient, which is not conducive to improving the detection efficiency of seeds. Utility Model Content

[0005] In view of this, the utility model proposes a hyperspectral seed scanning device, which can adjust the positions of the hyperspectral camera and the spotlight light source to adapt to different working conditions of seed detection, thereby improving the detection efficiency of the scanning device.

[0006] The technical solution of the present invention is implemented as follows: The present invention provides a hyperspectral seed scanning device, comprising a platform, a seed detection unit and a seed transmission unit, wherein:

[0007] The seed detection unit includes a gantry, a lifting plate, a hyperspectral camera and a spotlight light source, wherein the gantry is fixedly arranged on the platform; the lifting plate is fixedly arranged on the gantry in a manner that it can be raised and lowered; the hyperspectral camera is fixedly arranged on the lifting plate; the spotlight light source is fixedly arranged on the gantry, and the relative angle between the two is adjustable;

[0008] The seed conveying unit is fixedly arranged on the platform and is located below the hyperspectral camera.

[0009] On the basis of the above technical solution, preferably, the seed conveying unit includes a linear module and a material box, wherein,

[0010] The linear module is fixedly arranged on the platform;

[0011] The material box is fixedly arranged on the output end of the linear module.

[0012] More preferably, the platform is provided with a plurality of mounting holes, and the linear module is fixedly connected to some of the mounting holes.

[0013] On the basis of the above technical solution, preferably, the seed detection unit further includes a screw rod, the lifting plate is slidably arranged on the gantry, the screw rod is rotatably arranged on the gantry, and is connected to the lifting plate through threaded cooperation.

[0014] More preferably, the seed detection unit further includes a hand wheel, a scale and a pointer, wherein:

[0015] The handwheel is fixedly arranged on the screw rod;

[0016] The scale is fixedly arranged on the gantry;

[0017] The pointer is fixedly arranged on the lifting plate and slidably arranged on the scale.

[0018] More preferably, the seed detection unit further includes a scale wheel, the scale wheel is rotatably arranged on the hand wheel and fixedly connected to the gantry, and the screw is rotatably arranged in the scale wheel.

[0019] On the basis of the above technical solution, preferably, the seed detection unit further includes a linear rail and a slider, wherein:

[0020] The linear rail is fixedly arranged on the gantry;

[0021] The slider is slidably arranged on the linear rail and is fixedly connected to the lifting plate.

[0022] More preferably, the seed detection unit further includes a limit block, which is fixedly arranged on the linear rail, and the slider can abut against the limit block when sliding on the linear rail.

[0023] On the basis of the above technical solution, preferably, the seed detection unit further includes a rectangular frame and a rotating frame, wherein:

[0024] The rectangular frame is fixedly arranged on the gantry, and the projection of the hyperspectral camera on the horizontal plane is located inside the projection of the rectangular frame on the horizontal plane;

[0025] The rotating frame is fixedly arranged on the rectangular frame in a rotatable manner, and the spotlight light source is fixedly arranged on the rotating frame.

[0026] More preferably, there are two rotating racks, which are symmetrically arranged about a center line of the hyperspectral camera, and each rotating rack is provided with a plurality of hyperspectral cameras.

[0027] The hyperspectral seed scanning device of the utility model has the following beneficial effects compared with the prior art:

[0028] (1) By setting up a lifting plate, the hyperspectral camera can be driven to move up and down. In combination with a spotlight light source that can be adjusted in angle, the scanning device can be adapted to different working conditions of seed detection and provide good lighting effects for seeds under different working conditions, thereby improving the detection efficiency of the scanning device; (2) By setting up a scale, a pointer and a scale wheel, the position of the hyperspectral camera can be quickly calibrated and debugged, thereby improving the adjustment efficiency and adjustment accuracy of the scanning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a three-dimensional diagram of a hyperspectral seed scanning device of the present utility model;

[0031] Figure 2 This is a three-dimensional diagram of a seed transmission unit in a hyperspectral seed scanning device of the present invention;

[0032] Figure 3 This is a three-dimensional diagram of a seed detection unit in a hyperspectral seed scanning device of the present invention;

[0033] Figure 4 This is a cross-sectional view of a seed detection unit in a hyperspectral seed scanning device of the present invention.

[0034] Among them: 1. Platform; 101. Mounting hole; 2. Seed detection unit; 2.1. Gantry; 2.2. Lifting plate; 2.3. Hyperspectral camera; 2.4. Spotlight source; 2.5. Screw; 2.6. Handwheel; 2.7. Scale; 2.8. Pointer; 2.9. Scale wheel; 2.10. Linear rail; 2.11. Slider; 2.12. Limit block; 2.13. Rectangular frame; 2.14. Rotating frame; 3. Seed transfer unit; 3.1. Linear module; 3.2. Material box. DETAILED DESCRIPTION

[0035] The following will be combined with the specific embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] like Figure 1-4 As shown, a hyperspectral seed scanning device of the present invention includes a platform 1, a seed detection unit 2 and a seed transmission unit 3, which is used to achieve rapid scanning and imaging of seeds.

[0037] The platform 1 serves as a base for installing the seed transmission unit 3 and the seed detection unit 2 .

[0038] The seed detection unit 2 is used to scan seeds. The seed detection unit 2 includes a gantry 2.1, a lifting plate 2.2, a hyperspectral camera 2.3 and a spotlight light source 2.4. The gantry 2.1 is fixedly set on the platform 1; the lifting plate 2.2 is fixedly set on the gantry 2.1 in a manner that it can be lifted and lowered; the hyperspectral camera 2.3 is fixedly set on the lifting plate 2.2; the spotlight light source 2.4 is fixedly set on the gantry 2.1, and the relative angle between the two is adjustable; the lifting and lowering movement of the lifting plate 2.2 can drive the hyperspectral camera 2.3 to lift and lower, thereby adjusting the scanning range of the hyperspectral camera 2.3, so that the scanning device can adapt to different detection conditions, and by adjusting the angle of the spotlight light source 2.4, a good lighting environment can be provided for the hyperspectral camera 2.3 at different positions, thereby improving the scanning effect of the seeds.

[0039] The seed conveying unit 3 is used to drive the seeds to move back and forth. The seed conveying unit 3 is fixedly set on the platform 1 and is located below the hyperspectral camera 2.3. The seed conveying unit 3 drives the seeds to move back and forth below the hyperspectral camera 2.3, so that the seeds are scanned by the hyperspectral camera 2.3 to detect the quality of the seeds.

[0040] like Figure 2As shown, the seed conveying unit 3 includes a linear module 3.1 and a material box 3.2. The linear module 3.1 is fixedly arranged on the platform 1; the material box 3.2 is fixedly arranged on the output end of the linear module 3.1, and the material box 3.2 is used to place seeds; the linear module 3.1 is a prior art, which is usually composed of a shell, a motor fixed on the shell, a screw coaxially fixed with the output end of the motor, and a slide that cooperates with the screw thread and is slidably connected to the shell. The slide is the output end of the linear module 3.1. When the motor is started, the slide can be driven to move, thereby driving the material box 3.2 connected to the slide to move. The reciprocating rotation of the motor can drive the material box 3.2 to move back and forth, thereby facilitating the loading and unloading of seeds and their detection.

[0041] like Figure 1 As shown, a plurality of mounting holes 101 are provided on the platform 1, and the linear module 3.1 is fixedly connected to some of the mounting holes 101. By connecting the linear module 3.1 with the mounting holes 101 at different positions, the linear module 3.1 can be installed at different positions on the platform 1, thereby making the seed conveying unit 3 adaptable to different detection conditions.

[0042] like Figure 2 and Figure 3 As shown, the seed detection unit 2 further includes a screw 2.5, a hand wheel 2.6, a scale 2.7, a pointer 2.8, a scale wheel 2.9, a linear rail 2.10, a slider 2.11, a limit block 2.12, a rectangular frame 2.13 and a rotating frame 2.14.

[0043] like Figure 4 As shown, the lifting plate 2.2 is slidably set on the gantry 2.1, and the screw rod 2.5 is rotatably set on the gantry 2.1 and is connected to the lifting plate 2.2 through a threaded connection. When the screw rod 2.5 is rotated, the lifting plate 2.2 can be driven to slide on the gantry 2.1, and when the screw rod 2.5 is not rotated, the lifting plate 2.2 can maintain its relative position with the gantry 2.1, thereby realizing the lifting and fixing of the lifting plate 2.2 and adjusting the position of the hyperspectral camera 2.3 on the lifting plate 2.2.

[0044] like Figure 3As shown, the scale 2.7 is fixedly mounted on the gantry 2.1; the pointer 2.8 is fixedly mounted on the lifting plate 2.2 and is slidably mounted on the scale 2.7. The surface of the scale 2.7 has scale lines. When the height of the hyperspectral camera 2.3 is adjusted, the position of the pointer 2.8 is adjusted at the same time, so that the pointer 2.8 moves to scale lines at different positions on the scale 2.7. The scale lines on the scale 2.7 can be converted into the height of the hyperspectral camera 2.3. The height position of the hyperspectral camera 2.3 is determined by the cooperation between the scale 2.7 and the pointer 2.8, so that the height adjustment of the hyperspectral camera 2.3 can be determined.

[0045] like Figure 3 As shown, the handwheel 2.6 is fixedly mounted on the screw rod 2.5, thereby facilitating rotation of the screw rod; a graduated wheel 2.9 is rotatably mounted on the handwheel 2.6 and fixedly connected to the gantry 2.1, and the screw rod 2.5 is rotatably mounted within the graduated wheel 2.9. The graduated wheel 2.9 is a circular ring-shaped structure with graduated lines on its circumference. When the handwheel 2.6 is rotated, the relative position of a certain point on the surface of the handwheel 2.6 and the graduated lines on the circumference of the graduated wheel 2.9 is used to mark the height of the hyperspectral camera 2.3 (the principle is similar to that of the pointer 2.8 and the scale 2.7), thereby cooperating with the scale 2.7 and the pointer 2.8 to calibrate the position of the hyperspectral camera 2.3.

[0046] like Figure 4 As shown, the linear rail 2.10 is fixedly arranged on the gantry 2.1; the slider 2.11 is slidably arranged on the linear rail 2.10 and fixedly connected to the lifting plate 2.2. The sliding cooperation between the slider 2.11 and the linear rail 2.10 makes the sliding connection between the lifting plate 2.2 and the gantry 2.1 more stable.

[0047] like Figure 4 As shown, the limit block 2.12 is fixedly provided on the linear rail 2.10. When the slider 2.11 slides on the linear rail 2.10, it can abut against the limit block 2.12. Specifically, the limit block 2.12 is preferably located below the linear rail 2.10. When the hyperspectral camera 2.3 moves downward, before it collides with the spotlight light source 2.4, the slider 2.11 is first abutted against the limit block 2.12, thereby improving the protection of the hyperspectral camera 2.3 and the spotlight light source 2.4.

[0048] like Figure 3As shown, the rectangular frame 2.13 is fixedly set on the gantry 2.1, and the projection of the hyperspectral camera 2.3 on the horizontal plane is located inside the projection of the rectangular frame 2.13 on the horizontal plane, so as to avoid the rectangular frame 2.13 blocking the scanning of the hyperspectral camera 2.3; the rotating frame 2.14 is fixedly set on the rectangular frame 2.13 in a rotatable manner, and the spotlight light source 2.4 is fixedly set on the rotating frame 2.14; specifically, the rotating frame 2.14 can be rotatably set on the rectangular frame 2.13. When the rotating frame 2.14 is rotated to a suitable position, the rotating frame 2.14 and the rectangular frame 2.13 are fixed with bolts, thereby realizing the rotation and fixing operation of the rotating frame 2.14, so as to adjust the relative angle of the spotlight light source 2.4 and the gantry 2.1, so that the spotlight light source 2.4 can provide good lighting effects for the hyperspectral cameras 2.3 at different positions.

[0049] like Figure 4 As shown, there are two rotating frames 2.14, which are symmetrically arranged about the center line of the hyperspectral camera 2.3. Each rotating frame 2.14 is provided with multiple hyperspectral cameras 2.3. The multiple spotlight light sources 2.4 can eliminate lighting shadows, thereby improving the lighting effect of the spotlight light source 2.4; the spotlight light source 2.4 is a spotlight, which can provide better light intensity than the ring light, thereby helping to improve the scanning effect of the seeds.

[0050] The method of using the hyperspectral seed scanning device of the utility model is as follows:

[0051] First, start the hyperspectral camera 2.3 and the spotlight source 2.4. Then, use the hand wheel 2.6 to adjust the height of the hyperspectral camera 2.3. Use the rotation of the rotating frame 2.14 to adjust the lighting effect of the spotlight source 2.3. Then, place the seeds on the material box 3.2. Finally, start the linear module 3.1 to drive the material box 3.2 to move, allowing the hyperspectral camera 2.3 to scan the seeds. The image data collected by the hyperspectral camera 2.3 is transmitted to the detection terminal to realize the detection of the seed phenotype.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hyperspectral seed scanning device, characterized in that: It comprises a platform (1), a seed detection unit (2) and a seed transmission unit (3), wherein: The seed detection unit (2) comprises a gantry (2.1), a lifting plate (2.2), a hyperspectral camera (2.3) and a spotlight light source (2.4); the gantry (2.1) is fixedly arranged on the platform (1); the lifting plate (2.2) is fixedly arranged on the gantry (2.1) in a manner capable of being lifted and lowered; the hyperspectral camera (2.3) is fixedly arranged on the lifting plate (2.2); and the spotlight light source (2.4) is fixedly arranged on the gantry (2.1), and the relative angle between the two is adjustable; The seed transfer unit (3) is fixedly arranged on the platform (1) and is located below the hyperspectral camera (2.3).

2. A hyperspectral seed scanning device according to claim 1, characterized in that: The seed conveying unit (3) comprises a linear module (3.1) and a material box (3.2), wherein: The linear module (3.1) is fixedly arranged on the platform (1); The material box (3.2) is fixedly arranged on the output end of the linear module (3.1).

3. A hyperspectral seed scanning device according to claim 2, characterized in that: The platform (1) is provided with a plurality of mounting holes (101), and the linear module (3.1) is fixedly connected to some of the mounting holes (101).

4. The hyperspectral seed scanning device according to claim 1, wherein: The seed detection unit (2) further comprises a screw rod (2.5); the lifting plate (2.2) is slidably arranged on the gantry (2.1); the screw rod (2.5) is rotatably arranged on the gantry (2.1) and is connected to the lifting plate (2.2) via a threaded connection.

5. A hyperspectral seed scanning device according to claim 4, characterized in that: The seed detection unit (2) further includes a hand wheel (2.6), a scale (2.7) and a pointer (2.8), wherein: The hand wheel (2.6) is fixedly arranged on the screw rod (2.5); The scale (2.7) is fixedly arranged on the gantry (2.1); The pointer (2.8) is fixedly arranged on the lifting plate (2.2) and slidably arranged on the scale (2.7).

6. A hyperspectral seed scanning device according to claim 5, characterized in that: The seed detection unit (2) further comprises a scale wheel (2.9), which is rotatably mounted on the hand wheel (2.6) and fixedly connected to the gantry (2.1), and the screw rod (2.5) is rotatably mounted within the scale wheel (2.9).

7. The hyperspectral seed scanning device according to claim 1, characterized in that: The seed detection unit (2) further comprises a linear rail (2.10) and a slider (2.11), wherein: The linear rail (2.10) is fixedly arranged on the gantry (2.1); The slider (2.11) is slidably arranged on the linear rail (2.10) and is fixedly connected to the lifting plate (2.2).

8. The hyperspectral seed scanning device according to claim 7, characterized in that: The seed detection unit (2) further comprises a limit block (2.12), wherein the limit block (2.12) is fixedly arranged on the linear rail (2.10), and when the slider (2.11) slides on the linear rail (2.10), it can abut against the limit block (2.12).

9. The hyperspectral seed scanning device according to claim 1, characterized in that: The seed detection unit (2) further comprises a rectangular frame (2.13) and a rotating frame (2.14), wherein: The rectangular frame (2.13) is fixedly arranged on the gantry (2.1), and the projection of the hyperspectral camera (2.3) on the horizontal plane is located inside the projection of the rectangular frame (2.13) on the horizontal plane; The rotating frame (2.14) is fixedly arranged on the rectangular frame (2.13) in a rotatable manner, and the spotlight light source (2.4) is fixedly arranged on the rotating frame (2.14).

10. The hyperspectral seed scanning device according to claim 9, characterized in that: Two rotating racks (2.14) are provided, and the two rotating racks (2.14) are symmetrically arranged about the center line of the hyperspectral camera (2.3), and each rotating rack (2.14) is provided with a plurality of hyperspectral cameras (2.3).

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