Closed crop phenotype data automatic acquisition device

Abstract

The utility model provides a closed crop phenotype data automatic acquisition device, which comprises a hyperspectral imager, a camera obscura, a reflection light source assembly and a transmission light source assembly, the reflection light source assembly is fixed on the side surface of the hyperspectral imager, the transmission light source assembly is fixed at the bottom in the camera obscura, and the transmission light source assembly is fixed on the bottom in the camera obscura. The hyperspectral imaging device comprises a hyperspectral imager and further comprises a light-transmitting storage plate, a light-reflecting storage plate and a light-reflecting linear motion power part, the light-transmitting storage plate is located below the hyperspectral imager, the light-reflecting storage plate is located below the light-transmitting storage plate, the light-reflecting storage plate is fixedly connected with the output end of the light-reflecting linear motion power part, and the light-reflecting linear motion power part is fixedly connected with the light-transmitting storage plate. The reflective linear motion power piece is fixed to the camera obscura, the reflective light source assembly irradiates the light-transmitting storage plate downwards, and the transmission light source assembly irradiates the light-transmitting storage plate upwards. According to the invention, hyperspectral reflection and transmission image acquisition can be carried out without manually replacing the storage plate, so that the dependence on manpower is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of crop hyperspectral detection equipment technology, and in particular to a closed-type automatic crop phenotypic data acquisition device. Background Technology

[0002] For crop phenotypic data acquisition, industrial cameras, thermal imaging, and hyperspectral imaging are commonly used. Among these, hyperspectral imaging technology is based on a wide range of narrow-band image data. It combines imaging and spectral techniques to detect the two-dimensional geometric space and one-dimensional spectral information of the target, acquiring continuous, narrow-band image data with high spectral resolution. Because it can analyze chlorophyll and nutrient content in crops, it is widely used in crop testing.

[0003] Chinese invention patent CN109060670B discloses a hyperspectral imaging system and method integrating reflection and transmission. It discloses an imaging device located at the top of a housing, a transmission device located inside the housing, and the transmission device situated below the imaging device. Reflection light source components for generating reflected light sources are also provided on both sides of the transmission unit. Although the system discloses both reflection and transmission functions, the description in the prior art also reveals that switching from reflection image acquisition to transmission image acquisition requires changing the appropriate placement plate according to the shape of the sample to be tested and adjusting the size of the light-transmitting aperture. This makes switching between reflection and transmission functions cumbersome. Furthermore, according to the accompanying drawings in the prior art, since there is only one workstation, switching between reflection and transmission functions requires manual intervention, resulting in the device relying on manual labor and consuming considerable time during the switching process. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a closed-type automatic crop phenotypic data acquisition device that can acquire hyperspectral reflectance and transmission images without the need for manual replacement of the placement plate, thereby reducing reliance on manual labor and improving work efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An enclosed automatic crop phenotypic data acquisition device includes a hyperspectral imager, a dark box, a reflected light source assembly, and a transmitted light source assembly. The hyperspectral imager is located at the top of the dark box, the reflected light source assembly is fixed to the side of the hyperspectral imager, and the transmitted light source assembly is fixed to the bottom of the dark box. The device also includes a light-transmitting plate, a reflective plate, and a reflective linear motion drive. The light-transmitting plate is located below the hyperspectral imager, and the reflective plate is located below the light-transmitting plate. The reflective plate is fixedly connected to the output end of the reflective linear motion drive, which is fixed to the dark box. The reflected light source assembly shines downwards onto the light-transmitting plate, and the transmitted light source assembly shines upwards onto the light-transmitting plate.

[0007] Furthermore, both the reflected light source assembly and the transmitted light source assembly include paired two-bar lamp source assemblies. Each two-bar lamp source assembly includes a first bar, a second bar, and a halogen lamp panel. One end of the first bar is rotatably connected to the dark box, and the other end is rotatably connected to one end of the second bar. The other end of the second bar is rotatably connected to the back of the halogen lamp panel.

[0008] Furthermore, the rotational connection method in the two-bar linkage lamp source assembly is either a damped rotational connection or a motor-driven rotational connection.

[0009] Furthermore, it also includes a linear lead screw transmission assembly, the fixed end of which is fixed to the dark box, located below the hyperspectral imager, and between the reflective light source assembly and the transmissive light source assembly, and the light-transmitting plate is fixed to the slider end of the linear lead screw transmission assembly.

[0010] Furthermore, it also includes an industrial camera, which is fixed to the top inside the dark box and faces the linear lead screw transmission assembly.

[0011] Furthermore, it also includes a thermal imager, which is fixed to the top inside the dark box and directly facing the linear lead screw transmission assembly.

[0012] Furthermore, the darkroom also includes two light-shielding baffles, which are placed between the industrial camera, hyperspectral imager, and thermal imager arranged side by side to separate the three.

[0013] Furthermore, the light-shielding baffle is fixedly connected to the front side of the dark box, and also includes a linear lifting assembly. The fixed end of the linear lifting assembly is fixed to the dark box, and the sliding end of the linear lifting assembly is fixedly connected to the front side of the dark box.

[0014] Furthermore, it also includes a first belt transmission assembly, which is fixed on the slider end of the linear screw transmission assembly. The first belt transmission assembly includes a first belt, which is a transparent belt and serves as a light-transmitting shelf.

[0015] Furthermore, it also includes a second belt transmission assembly and a third belt transmission assembly, wherein the second belt transmission assembly is connected to the first belt transmission assembly located at one end of the linear lead screw transmission assembly, and the third belt transmission assembly is connected to the first belt transmission assembly located at the other end of the linear lead screw transmission assembly.

[0016] The beneficial effects of this utility model are as follows: by using a reflective linear motion power component to drive the reflective placement plate to move linearly, the automatic switching action of reflection and transmission functions when the hyperspectral imager acquires images is realized. There is no need to manually replace the placement plate, reducing reliance on manual labor and improving work efficiency. Attached Figure Description

[0017] Figure 1 This is a perspective view of the closed-type crop phenotypic data automatic acquisition device according to an embodiment of the present invention;

[0018] Figure 2 This is a front view of the enclosed crop phenotypic data automatic acquisition device according to an embodiment of the present invention;

[0019] Figure 3 This is a front view of the hyperspectral imaging method portion of an embodiment of this utility model.

[0020] Label Explanation:

[0021] 1. Hyperspectral imager; 2. Dark box; 3. Reflective light source assembly; 4. Transmitted light source assembly; 5. Translucent display panel; 6. Reflective display panel; 7. Reflective linear motion power component; 8. Linear lead screw transmission assembly; 9. Industrial camera; 10. Thermal imager; 11. Two-bar linkage lamp source assembly; 12. Light-shielding baffle; 13. Linear lifting assembly; 14. First belt transmission assembly; 15. Second belt transmission assembly; 16. Third belt transmission assembly;

[0022] 11-1, First connecting rod; 11-2, Second connecting rod; 11-3, Halogen lamp panel. Detailed Implementation

[0023] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0024] Please refer to Figures 1 to 3 The first embodiment provided by this utility model is as follows:

[0025] An enclosed automatic crop phenotypic data acquisition device includes a hyperspectral imager 1, a dark box 2, a reflected light source assembly 3, and a transmitted light source assembly 4. The hyperspectral imager 1 is located at the top inside the dark box 2, the reflected light source assembly 3 is fixed to the side of the hyperspectral imager 1, and the transmitted light source assembly 4 is fixed to the bottom inside the dark box 2. When acquiring images, the hyperspectral imager 1 is placed in the environment of the dark box 2. While the hyperspectral imager 1 is acquiring images, the reflected light source assembly 3 provides reflected light, and the transmitted light source assembly 4 provides transmitted light.

[0026] Furthermore, the system also includes a light-transmitting plate 5, a reflective plate 6, and a reflective linear motion actuator 7. The light-transmitting plate 5 is located below the hyperspectral imager 1, and the reflective plate 6 is located below the light-transmitting plate 5. The reflective plate 6 is fixedly connected to the output end of the reflective linear motion actuator 7, which is fixed to the dark box 2. The reflective plate 6 performs reciprocating linear motion under the drive of the reflective linear motion actuator 7, which is either an electric cylinder or a pneumatic cylinder. During operation, the crop is placed on the light-transmitting plate 5. When it is necessary to acquire a reflected image of the crop, the reflective linear motion actuator 7 moves the reflective plate 6 below the light-transmitting plate 5, the transmissive light source assembly 4 is turned off, and the reflective light source assembly 3 is turned on. The reflective light source assembly 3 shines downwards onto the crop located on the light-transmitting plate 5, and the light is received and used by the hyperspectral imager 1 after passing through the reflective plate 6. When it is necessary to acquire a transmissive image of the crop, the reflective linear motion power component 7 drives the reflective plate 6 away from the underside of the light-transmitting plate 5, turns off the reflective light source component 3, turns on the transmissive light source component 4, and the transmissive light source component 4 shines upwards onto the crop located on the light-transmitting plate 5. The light is received and used by the hyperspectral imager 1 after passing through the light-transmitting plate 5.

[0027] Regarding the specific structure of the reflected light source assembly 3 and the transmitted light source assembly 4, both the reflected light source assembly 3 and the transmitted light source assembly 4 include a pair of opposing two-bar lamp source assemblies 11. Each two-bar lamp source assembly 11 includes a first connecting rod 11-1, a second connecting rod 11-2, and a halogen lamp plate 11-3. One end of the first connecting rod 11-1 is rotatably connected to the dark box 2, and the other end is rotatably connected to one end of the second connecting rod 11-2. The other end of the second connecting rod 11-2 is rotatably connected to the back of the halogen lamp plate 11-3. The position and angle of the halogen lamp plate 11-3 are adjusted using the two-bar mechanism composed of the first connecting rod 11-1 and the second connecting rod 11-2, thus facilitating adjustment of the actual required position and angle of the halogen lamp plate 11-3 according to the actual height of the crop.

[0028] Furthermore, the rotational connection in the two-bar lamp source assembly 11 can be either a damped rotational connection or a motor-driven rotational connection. If the rotational connections between the first link 11-1 and the dark box 2, between the first link 11-1 and the second link 11-2, and between the second link 11-2 and the back of the halogen lamp panel 11-3 are all damped rotational connections, the position and angle of the halogen lamp panel 11-3 can be adjusted manually. If the rotational connections between the first link 11-1 and the dark box 2, between the first link 11-1 and the second link 11-2, and between the second link 11-2 and the back of the halogen lamp panel 11-3 are all motor-driven rotational connections, the position and angle of the halogen lamp panel 11-3 can be adjusted automatically. During operation, first adjust the position and angle of the halogen lamp plate 11-3 in the reflected light source assembly 3 and the transmitted light source assembly 4, and then perform hyperspectral image acquisition.

[0029] The second embodiment provided by this utility model is as follows:

[0030] A closed-loop automatic crop phenotypic data acquisition device, based on Embodiment 1, further includes a linear lead screw transmission assembly 8 to enable crops to automatically enter the hyperspectral imaging station for image acquisition. The fixed end of the linear lead screw transmission assembly 8 is fixed to the dark box 2, located below the hyperspectral imager 1, and between the reflective light source assembly 3 and the transmissive light source assembly 4. The light-transmitting plate 5 is fixed to the slider end of the linear lead screw transmission assembly 8. The linear lead screw transmission assembly 8 drives the light-transmitting plate 5 to move horizontally, allowing the crops on the light-transmitting plate 5 to automatically enter or leave the area below the hyperspectral imager 1. This achieves automatic transfer of crops requiring hyperspectral image acquisition, further improving the automation of data acquisition.

[0031] To further enhance the functionality of the data acquisition device, an industrial camera 9 is included. The industrial camera 9 is fixed to the top of the dark box 2 and directly faces the linear lead screw transmission assembly 8. The slider end of the linear lead screw transmission assembly 8 can move the light-transmitting plate 5 to a position below the industrial camera 9, thereby enabling the data acquisition device to capture images from both the hyperspectral imager 1 and the industrial camera 9, resulting in more comprehensive data acquisition. To ensure the industrial camera 9 captures clear images, a first LED light is installed above the station where the industrial camera 9 is located.

[0032] Furthermore, a thermal imager 10 is included, which is fixed to the top of the dark box 2 and directly opposite the linear lead screw transmission assembly 8. The slider end of the linear lead screw transmission assembly 8 can move the light-transmitting plate 5 to a position below the thermal imager 10, thereby enabling the acquisition device to capture images from the hyperspectral imager 1, the industrial camera 9, and the thermal imager 10, resulting in more comprehensive data acquisition. To ensure the thermal imager 10 captures clear images, a second LED light is installed above the workstation where the thermal imager 10 is located.

[0033] In order to prevent the images acquired by the hyperspectral imager 1, the industrial camera 9, and the thermal imager 10 from interfering with each other, the dark box 2 also includes two light-shielding baffles 12. The two light-shielding baffles 12 are set between the industrial camera 9, the hyperspectral imager 1, and the thermal imager 10, which are arranged side by side, to separate the three.

[0034] Regarding the use of the light-shielding baffle 12, the light-shielding baffle 12 is fixedly connected to the front side of the dark box 2, and a linear lifting assembly 13 is also included. The fixed end of the linear lifting assembly 13 is fixed to the dark box 2, and the sliding end of the linear lifting assembly 13 is fixedly connected to the front side of the dark box 2. When the acquisition device is running, the linear lifting assembly 13 drives the front side of the dark box 2 and the light-shielding baffle 12 to move upward or downward together. When the linear lead screw transmission assembly 8 needs to move the light-transmitting plate 5 and the crop between the industrial camera 9 station, the hyperspectral station, and the thermal imaging station, the linear lifting assembly 13 is first used to move the front side of the dark box 2 and the light-shielding baffle 12 upward, then the linear lead screw transmission assembly 8 is used to move the light-transmitting plate 5 and the crop horizontally to the required station, and then the linear lifting assembly 13 is used to move the front side of the dark box 2 and the light-shielding baffle 12 downward. Finally, the camera and lights at the crop station are turned on to take pictures.

[0035] The third embodiment provided by this utility model is as follows:

[0036] A closed-loop automatic crop phenotypic data acquisition device, based on Embodiment 2, further includes a first belt conveyor assembly 14 to automatically transport crops into the dark box 2. The first belt conveyor assembly 14 is fixed to the slider end of the linear screw conveyor assembly 8. The first belt conveyor assembly 14 includes a first belt, which is a transparent belt and serves as a light-transmitting placement plate 5. During operation, the crop is manually placed on the first belt, and the first belt conveyor assembly 14 moves the crop to a more centered position. Then, under the drive of the linear screw conveyor assembly 8, image acquisition is performed at different workstations.

[0037] To facilitate automatic entry and exit of crop for detection, a second belt conveyor assembly 15 and a third belt conveyor assembly 16 are further included. The second belt conveyor assembly 15 is connected to the first belt conveyor assembly 14 located at one end of the linear screw conveyor assembly 8, and the third belt conveyor assembly 16 is connected to the first belt conveyor assembly 14 located at the other end of the linear screw conveyor assembly 8. Specifically, for example, the second belt conveyor assembly 15 can be used to transfer the crop to be photographed to the first belt conveyor assembly 14, and the third belt conveyor assembly 16 can be used to unload the crop after photographing from the first belt conveyor assembly 14. Specifically, to avoid affecting crop photography, after the front side of the dark box 2 moves downward to its limit position, the first belt conveyor assembly 14 is located inside the dark box 2, and the second belt conveyor assembly 15 and the third belt conveyor assembly 16 are located outside the dark box 2.

[0038] In this embodiment, such as Figure 1 and Figure 2 As shown, the automatic operation process of the acquisition device is as follows: The crop is placed on the second belt conveyor assembly 15. Driven by the linear lifting assembly 13, the front side of the dark box 2 and the two light-shielding baffles 12 are raised. The linear screw conveyor assembly 8 drives the first belt conveyor assembly 14 to move to the position of the industrial camera 9. The second belt conveyor assembly 15 transfers the crop to be photographed to the first belt conveyor assembly 14. The first belt conveyor assembly 14 places the crop at a relatively central position on the slider end of the linear screw conveyor assembly 8. Driven by the linear lifting assembly 13, the front side of the dark box 2 and the two light-shielding baffles 12 are lowered. The industrial camera 9 and the first LED light are turned on to perform image acquisition by the industrial camera 9. After completion, driven by the linear lifting assembly 13, the front side of the dark box 2 and the two light-shielding baffles 12 are raised. The linear screw conveyor assembly 8 drives the first belt conveyor assembly 14 to move to the position of the industrial camera 9. The conveyor assembly 14 and the crop are moved to the hyperspectral imaging station. Driven by the linear lifting assembly 13, the front side of the dark box 2 and the two light-shielding baffles 12 are lowered, and the hyperspectral imager 1 is activated to acquire reflected and transmitted images. After completion, driven by the linear lifting assembly 13, the front side of the dark box 2 and the two light-shielding baffles 12 are raised, and the linear screw conveyor assembly 8 moves the first belt conveyor assembly 14 and the crop to the thermal imaging station. Driven by the linear lifting assembly 13, the front side of the dark box 2 and the two light-shielding baffles 12 are lowered, and the thermal imager 10 is activated to acquire images. After completion, driven by the linear lifting assembly 13, the front side of the dark box 2 and the two light-shielding baffles 12 are raised, and the first belt conveyor assembly 14 transfers the image-acquired crop to the third belt conveyor assembly 16. Thus, one crop image acquisition operation is completed. To acquire images of another crop, the above process can be repeated. Multiple types of crop images can be acquired, and all operations are automated, requiring no manual replacement of the placement plates or repositioning.

[0039] In summary, the advantages of the closed-type automatic crop phenotypic data acquisition device provided by this utility model are as follows:

[0040] 1. When the hyperspectral imager 1 acquires images, it does not require manual replacement of the mounting plate. It can automatically switch between reflective image acquisition and transmission image acquisition modes, reducing reliance on manual labor and improving work efficiency.

[0041] 2. The hyperspectral imager 1 is illuminated by the paired two-bar lamp source assembly 11, which facilitates manual or automatic adjustment of the halogen lamp panel 11-3 according to the shape and height of the crop;

[0042] 3. It features three image acquisition methods: industrial camera 9, hyperspectral imager 1, and thermal imager 10, resulting in more comprehensive data acquisition in a single session;

[0043] 4. The crop is automatically moved between the three image acquisition stations by the linear lead screw transmission component 8;

[0044] 5. The linear lifting assembly 13 drives the front side of the dark box 2 and the two light-shielding baffles 12 to move up and down together, so as to achieve the non-interference of image acquisition by the three modes of industrial camera 9, hyperspectral imager 1, and thermal imager 10, and ensure the accuracy of image data acquisition.

[0045] 6. By cooperating with the first belt conveyor assembly 14 placed inside the dark box 2 and on the linear lead screw conveyor assembly 8, and the second belt conveyor assembly 15 and the third belt conveyor assembly 16 located outside the dark box 2, the crop can automatically enter the dark box 2, automatically switch between the three image acquisition stations, and automatically exit the dark box 2. The entire image acquisition process is completed automatically without manual intervention.

[0046] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A closed-type automatic crop phenotypic data acquisition device, comprising a hyperspectral imager (1), a dark box (2), a reflected light source assembly (3), and a transmitted light source assembly (4), wherein the hyperspectral imager (1) is disposed at the top inside the dark box (2), the reflected light source assembly (3) is fixed to the side of the hyperspectral imager (1), and the transmitted light source assembly (4) is fixed to the bottom inside the dark box (2), characterized in that, It also includes a light-transmitting shelf (5), a reflective shelf (6), and a reflective linear motion power component (7). The light-transmitting shelf (5) is located below the hyperspectral imager (1), and the reflective shelf (6) is located below the light-transmitting shelf (5). The reflective shelf (6) is fixedly connected to the output end of the reflective linear motion power component (7). The reflective linear motion power component (7) is fixed on the dark box (2). The reflective light source assembly (3) shines downward toward the light-transmitting shelf (5), and the transmissive light source assembly (4) shines upward toward the light-transmitting shelf (5).

2. The closed-type automatic crop phenotypic data acquisition device according to claim 1, characterized in that, Both the reflected light source assembly (3) and the transmitted light source assembly (4) include a pair of two-bar lamp source assemblies (11). The two-bar lamp source assembly (11) includes a first link (11-1), a second link (11-2), and a halogen lamp plate (11-3). One end of the first link (11-1) is rotatably connected to the dark box (2), and the other end is rotatably connected to one end of the second link (11-2). The other end of the second link (11-2) is rotatably connected to the back of the halogen lamp plate (11-3).

3. The closed-loop crop phenotypic data automatic acquisition device according to claim 2, characterized in that, The rotational connection method in the two-bar lamp source assembly (11) is either a damped rotational connection or a motor-driven rotational connection.

4. The closed-loop crop phenotypic data automatic acquisition device according to claim 1, characterized in that, It also includes a linear lead screw transmission assembly (8), the fixed end of which is fixed on the dark box (2), located below the hyperspectral imager (1), and between the reflective light source assembly (3) and the transmissive light source assembly (4), and the light-transmitting plate (5) is fixed on the slider end of the linear lead screw transmission assembly (8).

5. The closed-type automatic crop phenotypic data acquisition device according to claim 4, characterized in that, It also includes an industrial camera (9), which is fixed to the top inside the dark box (2) and faces the linear lead screw transmission assembly (8).

6. The closed-loop crop phenotypic data automatic acquisition device according to claim 5, characterized in that, It also includes a thermal imager (10), which is fixed to the top inside the dark box (2) and faces the linear lead screw transmission assembly (8).

7. The closed-type automatic crop phenotypic data acquisition device according to claim 6, characterized in that, The dark box (2) also includes two light-shielding baffles (12), which are set between the industrial camera (9), hyperspectral imager (1) and thermal imager (10) arranged side by side to separate the three.

8. The closed-loop crop phenotypic data automatic acquisition device according to claim 7, characterized in that, The light-shielding baffle (12) is fixedly connected to the front side of the dark box (2), and also includes a linear lifting assembly (13). The fixed end of the linear lifting assembly (13) is fixed to the dark box (2), and the sliding end of the linear lifting assembly (13) is fixedly connected to the front side of the dark box (2).

9. The closed-type automatic crop phenotypic data acquisition device according to claim 4, 5, 6, 7 or 8, characterized in that, It also includes a first belt transmission assembly (14), which is fixed on the slider end of the linear screw transmission assembly (8). The first belt transmission assembly (14) includes a first belt, which is a transparent belt and is a light-transmitting shelf (5).

10. The closed-type automatic crop phenotypic data acquisition device according to claim 9, characterized in that, It also includes a second belt transmission assembly (15) and a third belt transmission assembly (16), wherein the second belt transmission assembly (15) is connected to the first belt transmission assembly (14) located at one end of the linear screw transmission assembly (8), and the third belt transmission assembly (16) is connected to the first belt transmission assembly (14) located at the other end of the linear screw transmission assembly (8).

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