A wheat scab detection device based on hyperspectral imaging

Abstract

The invention discloses a wheat fusarium wilt detection device based on hyperspectral imaging, which relates to the technical field of spectral imaging detection devices. Its technical solution includes a device shell, a fixing mechanism is provided inside the device shell, a chuck is provided at the front end of the fixing mechanism, an airbag is fixedly connected to the upper part of the chuck, an inclined shell is provided at the lower part of the fixing mechanism, a sixth motor is provided at the upper part of the inclined shell, a fifth gear is provided at the output end of the sixth motor, the fifth gear is meshed with the sixth gear, and the sixth gear is fixedly connected to a rotating rod close to the inclined shell. In the present invention, the fixing mechanism can be used to flexibly fix the wheat ear according to the diameter of the ear axis. After the fixation is completed, the rotating rod can be driven to rotate by starting the sixth motor, and the rotation of the rotating rod can drive the connecting platform to rotate, so that the wheat ear is tilted, the spikelets of the wheat ear can be spread out in layers, the mutual occlusion between the grains is reduced, and it is ensured that the hyperspectral camera can completely scan all areas of the ear.

Description

Technical Field

[0001] The present invention relates to the technical field of spectral imaging detection devices, and in particular to a wheat scab detection device based on hyperspectral imaging. Background Art

[0002] Wheat fusarium scaber is a major disease that seriously affects wheat yield and quality. Traditional detection methods such as manual visual inspection and chemical reagent detection have problems such as low efficiency and poor accuracy. With the development of spectral technology, hyperspectral imaging technology has gradually been applied to the field of wheat fusarium scaber detection due to its advantage of simultaneously acquiring spectral and image information. Hyperspectral imaging technology can capture subtle spectral changes caused by the disease, accurately identify the disease type, assess the degree and track the disease, and provide a scientific basis for early warning and prevention and control. In recent years, combined with deep learning algorithms such as convolutional neural networks, the detection accuracy and efficiency have been further improved, and the impact of human factors has been reduced. The wheat fusarium scaber detection device based on hyperspectral imaging supports non-destructive testing and real-time online monitoring, effectively avoiding sample damage, and providing innovative solutions for timely prevention and control of diseases and ensuring food security.

[0003] In actual use, when the existing device is used to detect sample wheat ears, it is easy to encounter obstruction problems such as shadows between wheat ear grains and the ear axis blocking the husk, which makes it easy to miss detections. In order to avoid obstruction, the wheat ear posture needs to be manually adjusted or repeated scanning is required, which increases the detection time cost. Therefore, a wheat fusarium wilt detection device based on hyperspectral imaging is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem of obstruction in the prior art, in which shadows between wheat ear grains and the ear axis blocking the husk are easily generated when the sample wheat ear is tested, which makes it easy to miss the detection. In addition, in order to avoid the obstruction, the wheat ear posture needs to be manually adjusted or repeated scanning is required, which increases the time cost of detection. A wheat fusarium wilt detection device based on hyperspectral imaging is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The gear train is connected to the transmission gear of the present invention, and the transmission gear is connected to the transmission gear of the present invention in an orderly manner.

[0007] During the inspection, the wheat ears are fixed by the chuck provided at the front end of the fixing mechanism, and the sixth motor is started to drive the rotating rod to rotate, and the rotation of the rotating rod drives the connecting platform to rotate, thereby driving the fixing mechanism to rotate, causing the wheat ears to tilt. During the tilting process of the wheat ears, the rotating rod synchronously drives the seventh gear to rotate, and the rotation of the seventh gear drives the pressure plate to press down, so that the gas inside the air cavity is sent into the airbag through the connecting pipe. As the inclination of the wheat ears increases, the expansion and fixation of the airbag are synchronously lifted to ensure the stability of the wheat ears during the posture adjustment process. The surface of the airbag is provided with an anti-slip surface to increase the friction between the airbag and the ear axis.

[0008] The above technical solution further includes:

[0009] The fixing mechanism includes a fixing shell fixedly connected to the upper part of the connecting platform, a fifth motor is arranged on the upper part of the fixing shell, and a fixing component is arranged at the output end of the fifth motor.

[0010] The fixing assembly includes a first gear provided at the output end of the fifth motor, the first gear is meshed with a second gear and a third gear on both sides, the third gear is meshed with a fourth gear, and the second gear and the fourth gear are meshed with a chuck.

[0011] A first motor is arranged at the bottom of the device housing, a turntable is arranged at the output end of the first motor, and a whiteboard is arranged on the upper part of the turntable.

[0012] The upper portion of the turntable is fixedly connected with a rotation shell, a seventh motor is arranged inside the rotation shell, and an output end of the seventh motor is provided with a rotation component.

[0013] The self-rotating assembly includes an eighth gear provided at the output end of the seventh motor, the eighth gear is meshedly connected with a ninth gear, and the upper portion of the ninth gear is fixedly connected to an inclined housing.

[0014] The front end of the device shell is rotatably connected to a movable door, the interior of the device shell is fixedly connected to a lifting shell, the upper part of the lifting shell is provided with a fourth motor, and the output end of the fourth motor is provided with a lifting component.

[0015] The lifting assembly includes a second threaded rod provided at the output end of the fourth motor, the second threaded rod is threadedly connected to a transmission member, a camera is provided at the front end of the transmission member, and a spectrometer is provided on the upper part of the camera.

[0016] An adjustment shell is symmetrically fixedly connected to the inside of the device shell, a third motor is provided on one side of the adjustment shell, a first threaded rod is provided at the output end of the third motor, the first threaded rod is threadedly connected to a transmission plate, a second motor is provided on the upper part of the transmission plate, and a lighting lamp is provided at the output end of the second motor.

[0017] The present invention has the following beneficial effects:

[0018] 1. In the present invention, the fixing mechanism can be used to flexibly fix the wheat ear according to the diameter of the spike axis. After the fixation is completed, the sixth motor can be started to drive the rotating rod to rotate, and the rotation of the rotating rod can drive the connecting platform to rotate, so that the wheat ear can be tilted, and the spikelets of the wheat ear can be layered and spread out, reducing mutual occlusion between grains, ensuring that the hyperspectral camera can completely scan all areas of the spike. Moreover, when the wheat ear is tilted, the rotating rod can synchronously drive the seventh gear to rotate, and the rotation of the seventh gear drives the pressure plate to move downward, so that the gas inside the air cavity enters the airbag through the connecting tube. As the inclination of the wheat ear increases, the expansion effect of the airbag increases synchronously, thereby effectively preventing the position of the wheat ear from shifting during the change of its posture, thereby affecting the imaging effect.

[0019] 2. In the present invention, during detection, the turntable can be driven to rotate by the first motor. The rotation of the turntable can first move the whiteboard to be directly under the camera before the sample is tested, so as to calibrate the camera. During the detection process, the position and inclination of the lighting lamp can be adjusted by starting the third motor and the second motor, thereby automatically compensating for the lighting under cloudy or strong light conditions and improving the image signal-to-noise ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a wheat scab detection device based on hyperspectral imaging proposed in the present invention;

[0021] Figure 2 Schematic diagram of the overall structure of the device in the present invention;

[0022] Figure 3 Schematic diagram of the connection relationship of the fixing mechanism in the present invention;

[0023] Figure 4Schematic diagram of the internal structure of the fixed housing in the present invention;

[0024] Figure 5 This is a schematic diagram of the connection relationship of the inclined shell in the present invention;

[0025] Figure 6 Schematic diagram of the internal structure of the air cavity in the present invention;

[0026] Figure 7 Schematic diagram of the internal structure of the rotating shell in the present invention;

[0027] Figure 8 Schematic diagram of the internal structure of the regulating housing in the present invention;

[0028] Figure 9 It is a schematic diagram of the internal structure of the lifting shell in the present invention.

[0029] In the figure: 1. Device housing; 2. First motor; 3. Turntable; 4. Whiteboard; 5. Rotating housing; 6. Camera; 7. Spectrometer; 8. Lighting lamp; 9. Second motor; 10. Third motor; 11. Adjusting housing; 12. Fourth motor; 13. Lifting housing; 14. Movable door; 15. Connecting platform; 16. Fifth motor; 17. Chuck; 18. Airbag; 19. Fixed housing; 20. Linkage housing; 21. Air cavity; 22. Connecting pipe; 23. First gear; 24, second gear; 25, third gear; 26, fourth gear; 27, tilting housing; 28, sixth motor; 29, fifth gear; 30, sixth gear; 31, rotating rod; 32, worm; 33, worm wheel; 34, seventh gear; 35, transmission rack; 36, pressure plate; 37, seventh motor; 38, eighth gear; 39, ninth gear; 40, first threaded rod; 41, transmission plate; 42, second threaded rod; 43, transmission member. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0031] Example 1

[0032] like Figures 1-9As shown, a wheat scab detection device based on hyperspectral imaging includes a device housing 1, a fixing mechanism is provided inside the device housing 1, a chuck 17 is provided at the front end of the fixing mechanism, an air bag 18 is fixedly connected to the upper part of the chuck 17, an inclined shell 27 is provided at the lower part of the fixing mechanism, a sixth motor 28 is provided at the upper part of the inclined shell 27, a fifth gear 29 is provided at the output end of the sixth motor 28, the fifth gear 29 is meshed with a sixth gear 30, and the sixth gear 30 is fixedly connected to a rotating rod on the side close to the inclined shell 27 31. The upper part of the rotating rod 31 is fixedly connected to the connecting platform 15, and one side of the rotating rod 31 is fixedly connected to the worm 32. One side of the worm 32 is rotatably connected to the linkage housing 20. The worm 32 is meshed with a worm gear 33. The worm gear 33 is fixedly connected to the seventh gear 34. The seventh gear 34 is meshed with a transmission rack 35. The lower part of the transmission rack 35 is fixedly connected to a pressure plate 36. The pressure plate 36 is slidably connected to the inside of the air cavity 21. The lower part of the air cavity 21 is fixedly connected to a connecting tube 22. One end of the connecting tube 22 is connected to the airbag 18.

[0033] During inspection, the wheat ears are fixed by the chuck 17 provided at the front end of the fixing mechanism, and the sixth motor 28 is started to drive the rotating rod 31 to rotate, and the rotation of the rotating rod 31 drives the connecting platform 15 to rotate, thereby driving the fixing mechanism to rotate, causing the wheat ears to tilt. During the tilting process of the wheat ears, the rotating rod 31 synchronously drives the seventh gear 34 to rotate, and the rotation of the seventh gear 34 drives the pressure plate 36 to press down, so that the gas inside the air cavity 21 is sent into the airbag 18 through the connecting tube 22. As the inclination of the wheat ears increases, the expansion and fixation of the airbag 18 are synchronously improved to ensure the stability of the wheat ears during the posture adjustment process. The surface of the airbag 18 is provided with an anti-slip surface to increase the friction between the airbag 18 and the ear axis.

[0034] The fixing mechanism includes a fixed shell 19 fixedly connected to the upper part of the connecting platform 15, a fifth motor 16 is provided on the upper part of the fixed shell 19, and a fixing component is provided at the output end of the fifth motor 16. The fixing component includes a first gear 23 provided at the output end of the fifth motor 16, and the second gear 24 and the third gear 25 are meshedly connected on both sides of the first gear 23, the third gear 25 is meshedly connected to the fourth gear 26, and the second gear 24 and the fourth gear 26 are meshedly connected to the chuck 17.

[0035] In this embodiment, by starting the fifth motor 16, the first gear 23 can be driven to rotate, and the rotation of the first gear 23 drives the meshing second gear 24 and the third gear 25 to rotate, and the rotation of the third gear 25 can drive the meshing fourth gear 26 to rotate, and the rotation of the second gear 24 and the fourth gear 26 can drive the meshing chuck 17 to move, so that the fixation can be flexibly achieved according to the diameter of the ear axis of the wheat ear. After the fixation is completed, the fifth gear 29 can be driven to rotate by starting the sixth motor 28, and the rotation of the fifth gear 29 drives the meshing sixth gear 30 to rotate, and the rotation of the sixth gear 30 can drive the fixedly connected rotating rod 31 to rotate, and the rotation of the rotating rod 31 can drive the connecting platform 15 to rotate, so that the wheat ear is tilted and the spikelets of the wheat ear are spread out in layers, reducing mutual occlusion between grains and ensuring that the hyperspectral camera can completely scan all areas of the ear.

[0036] When the wheat ear is tilted, the rotating rod 31 can synchronously drive the worm 32 to rotate, and the rotation of the worm 32 drives the meshing worm wheel 33 to rotate, and the rotation of the worm wheel 33 can drive the fixedly connected seventh gear 34 to rotate. The rotation of the seventh gear 34 can drive the meshing transmission rack 35 to move downward, thereby driving the pressure plate 36 to move downward, so that the gas inside the air cavity 21 enters the airbag 18 through the connecting tube 22. As the inclination of the wheat ear increases, the expansion effect of the airbag 18 increases synchronously, thereby effectively preventing the position of the wheat ear from shifting during the change of its posture, affecting the imaging effect.

[0037] Example 2

[0038] like Figures 1-9 As shown, a first motor 2 is provided at the bottom of the device housing 1, a turntable 3 is provided at the output end of the first motor 2, a whiteboard 4 is provided on the upper part of the turntable 3, a rotating shell 5 is fixedly connected to the upper part of the turntable 3, a seventh motor 37 is provided inside the rotating shell 5, a rotating assembly is provided at the output end of the seventh motor 37, the rotating assembly includes an eighth gear 38 provided at the output end of the seventh motor 37, the eighth gear 38 is meshedly connected to the ninth gear 39, and the upper part of the ninth gear 39 is fixedly connected to the tilting shell 27.

[0039] The front end of the device housing 1 is rotatably connected to a movable door 14, and the inside of the device housing 1 is fixedly connected to a lifting shell 13, a fourth motor 12 is provided on the upper part of the lifting shell 13, and a lifting assembly is provided at the output end of the fourth motor 12, and the lifting assembly includes a second threaded rod 42 provided at the output end of the fourth motor 12, the second threaded rod 42 is threadedly connected to a transmission member 43, a camera 6 is provided at the front end of the transmission member 43, and a spectrometer 7 is provided on the upper part of the camera 6, an adjustment shell 11 is symmetrically fixedly connected to the inside of the device housing 1, a third motor 10 is provided on one side of the adjustment shell 11, a first threaded rod 40 is provided at the output end of the third motor 10, the first threaded rod 40 is threadedly connected to a transmission plate 41, a second motor 9 is provided on the upper part of the transmission plate 41, and a lighting lamp 8 is provided at the output end of the second motor 9.

[0040] In this embodiment, during testing, the turntable 3 can be driven to rotate by the first motor 2, and the rotation of the turntable 3 can move the whiteboard 4 to be directly under the camera 6 before the sample is tested, thereby calibrating the camera 6. During the testing process, the eighth gear 38 can be driven to rotate by starting the seventh motor 37, and the rotation of the eighth gear 38 drives the meshing ninth gear 39 to rotate. The rotation of the ninth gear 39 can drive the wheat ear to rotate, so that the camera 6 can capture the reflection and absorption characteristics at different angles, thereby improving the feature extraction effect. The first threaded rod 40 can be driven to rotate by starting the third motor 10, and the rotation of the first threaded rod 40 drives the threaded transmission plate 41 to move. The position and inclination of the lighting lamp 8 can be adjusted by the third motor 10 and the second motor 9, thereby automatically compensating for light under cloudy or strong light conditions and improving the image signal-to-noise ratio. The second threaded rod 42 can be driven to rotate by starting the fourth motor 12, thereby driving the threaded transmission member 43 to move and adjusting the height of the camera 6.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A wheat scab detection device based on hyperspectral imaging, comprising a device housing (1), characterized in that: A fixing mechanism is provided inside the device housing (1), a chuck (17) is provided at the front end of the fixing mechanism, an air bag (18) is fixedly connected to the upper portion of the chuck (17), an inclined shell (27) is provided at the lower portion of the fixing mechanism, a sixth motor (28) is provided at the upper portion of the inclined shell (27), a fifth gear (29) is provided at the output end of the sixth motor (28), the fifth gear (29) is meshedly connected to the sixth gear (30), a rotating rod (31) is fixedly connected to the side of the sixth gear (30) close to the inclined shell (27), and a connecting platform ( 15), one side of the rotating rod (31) is fixedly connected to a worm (32), one side of the worm (32) is rotatably connected to a linkage housing (20), the worm (32) is meshedly connected to a worm wheel (33), the worm wheel (33) is fixedly connected to a seventh gear (34), the seventh gear (34) is meshedly connected to a transmission rack (35), the lower part of the transmission rack (35) is fixedly connected to a pressure plate (36), the pressure plate (36) is slidably connected to the inside of the air cavity (21), the lower part of the air cavity (21) is fixedly connected to a connecting pipe (22), one end of the connecting pipe (22) is connected to the air bag (18); During the inspection, the wheat ear is fixed by the clamp (17) provided at the front end of the fixing mechanism, and the sixth motor (28) is started to drive the rotating rod (31) to rotate, and the rotating rod (31) rotates to drive the connecting platform (15) to rotate, thereby driving the fixing mechanism to rotate, so that the wheat ear is tilted. During the wheat ear tilting process, the rotating rod (31) synchronously drives the seventh gear (34) to rotate, and the seventh gear (34) rotates to drive the pressure plate (36) to press down, so that the internal gas of the air cavity (21) is sent into the air bag (18) through the connecting pipe (22). As the inclination of the wheat ear increases, the air bag (18) is expanded and fixedly lifted synchronously, thereby ensuring the stability of the wheat ear during the posture adjustment process. The front end of the device shell (1) is rotatably connected to the movable door (14), and the interior of the device shell (1) is fixedly connected to the lifting shell (13). A fourth motor (12) is provided on the upper portion of the lowering housing (13), and a lifting assembly is provided at the output end of the fourth motor (12), the lifting assembly comprising a second threaded rod (42) provided at the output end of the fourth motor (12), the second threaded rod (42) being threadedly connected to a transmission member (43), a camera (6) being provided at the front end of the transmission member (43), a spectrometer (7) being provided on the upper portion of the camera (6), an adjustment housing (11) being symmetrically fixedly connected inside the device housing (1), a third motor (10) being provided on one side of the adjustment housing (11), a first threaded rod (40) being provided at the output end of the third motor (10), the first threaded rod (40) being threadedly connected to a transmission plate (41), a second motor (9) being provided on the upper portion of the transmission plate (41), and a lighting lamp (8) being provided at the output end of the second motor (9).

2. The wheat scab detection device based on hyperspectral imaging according to claim 1, characterized in that: The fixing mechanism comprises a fixing housing (19) fixedly connected to the upper portion of the connecting platform (15); a fifth motor (16) is provided on the upper portion of the fixing housing (19); and a fixing component is provided at the output end of the fifth motor (16).

3. The wheat scab detection device based on hyperspectral imaging according to claim 2, characterized in that: The fixing assembly comprises a first gear (23) provided at the output end of the fifth motor (16), a second gear (24) and a third gear (25) being meshedly connected on both sides of the first gear (23), the third gear (25) being meshedly connected to a fourth gear (26), and the second gear (24) and the fourth gear (26) being meshedly connected to a chuck (17).

4. The wheat scab detection device based on hyperspectral imaging according to claim 1, characterized in that: A first motor (2) is provided at the bottom of the device housing (1); a turntable (3) is provided at the output end of the first motor (2); and a whiteboard (4) is provided on the top of the turntable (3).

5. The wheat scab detection device based on hyperspectral imaging according to claim 4, characterized in that: The upper portion of the turntable (3) is fixedly connected to a rotation housing (5), a seventh motor (37) is provided inside the rotation housing (5), and a rotation component is provided at the output end of the seventh motor (37).

6. The wheat scab detection device based on hyperspectral imaging according to claim 5, characterized in that: The self-rotating assembly comprises an eighth gear (38) provided at the output end of the seventh motor (37), the eighth gear (38) being meshedly connected to a ninth gear (39), and the upper portion of the ninth gear (39) being fixedly connected to a tilting housing (27).

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