Crop disease detection device

Abstract

The invention discloses a crop disease detection device, and belongs to the technical field of crop disease detection.The crop disease detection device comprises a detection body and a camera installed on the detection body, and further comprises a pushing-aside mechanism used for pushing aside a sheltering object sheltered in front of the camera outwards; the poking mechanism comprises a rotating shaft, a bottom plate, a driving plate and a poking rod, the rotating shaft and the poking rod are both located in front of the camera, the poking rod is fixed to the circumferential surface of the rotating shaft and used for pushing away a sheltering object sheltered in front of the camera towards one side, the rotating shaft penetrates through the driving plate, the lower end of the rotating shaft is inserted into the bottom plate, and the driving plate is fixed to the bottom plate. And the driving plate is used for driving the rotating shaft to rotate around the central axis of the rotating shaft. The problem that the shooting effect is poor due to the fact that leaves, flowers, fruits and other parts of crops are prone to being blocked on the surface of the camera is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of crop disease detection, and more particularly to a crop disease detection device. Background Art

[0002] There are several main ways to detect crop diseases: 1. Manual visual observation: Experienced agricultural technicians or farmers directly observe the leaves, stems, flowers, fruits and other parts of crops to preliminarily determine the type and severity of the disease.

[0003] 2. Laboratory testing: Collect crop samples and take them back to the laboratory for testing.

[0004] 3. Spectral detection technology: Utilize the differences in reflection, absorption and other characteristics of crops in different health states in different spectral bands, obtain the spectral data of crops through a spectrometer, and analyze the spectral characteristics to detect diseases. For example, near-infrared spectroscopy technology can be used to detect early diseases of crops.

[0005] 4. Image recognition technology: Use cameras and other equipment to collect images of crops, use image processing and pattern recognition algorithms to analyze the shape, color, texture and other features of the lesions in the images, and compare them with the disease image database to identify the type and degree of the disease. For example, image recognition models based on deep learning can accurately identify a variety of crop diseases.

[0006] 5. Sensor detection technology: Use biosensors to convert chemical or biological signals into electrical signals for detection. Environmental sensors can also be used to monitor the growth environment of crops, and combined with the environmental conditions of disease occurrence, to warn of the possibility of disease occurrence.

[0007] 6. Drone remote sensing detection: Drones equipped with sensors and cameras can obtain images and spectral data of large areas of crops from the air, which is suitable for disease monitoring in large-scale farmland.

[0008] At present, image recognition technology is a relatively mature technology. Applying it to crop disease detection devices can accurately and quickly identify a variety of crop diseases. However, existing crop disease detection devices using image recognition technology often need to shuttle or extend between crops. In this way, the leaves, flowers, fruits and other parts of the crops are easily attached to the surface of the camera, causing occlusion, resulting in blurred photos or black shadows.

[0009] In view of this, the present invention provides a novel crop disease detection device. Summary of the invention

[0010] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a crop disease detection device that solves the problem that leaves, flowers, fruits and other parts of crops are easily blocked on the camera surface, resulting in poor shooting effects.

[0011] To achieve the above object, the present invention provides the following technical solutions: A crop disease detection device comprises a detection body and a camera mounted on the detection body, and also comprises a displacing mechanism for displacing an obstruction blocking the front of the camera outwards; The pushing mechanism includes a rotating shaft, a base plate, a driving plate and a lever, wherein the rotating shaft and the driving rod are both located in front of the camera, the driving rod is fixed to the circumferential surface of the rotating shaft and is used to push the obstruction in front of the camera to one side, the rotating shaft passes through the driving plate and the lower end is inserted into the base plate, and the driving plate is used to drive the rotating shaft to rotate around its central axis.

[0012] Further preferably, a slider and a slide groove are provided between the driving plate and the rotating shaft, and when the driving plate moves up and down, the driving plate will drive the rotating shaft to rotate around its central axis under the cooperation of the slider and the slide groove.

[0013] Further preferably, the slide groove is spirally arranged on the circumferential surface of the rotating shaft, one end of the sliding block is fixed to the driving plate, and the other end is inserted into the slide groove.

[0014] Further preferably, the slide groove is spirally arranged on the driving plate, one end of the slider is fixed to the surface of the rotating shaft, and the other end is inserted into the slide groove.

[0015] Further preferably, the lever comprises an inner lever and an outer lever, the inner lever and the outer lever are both fixed on the rotating shaft, and the inner lever is located on a side of the outer lever close to the camera.

[0016] It is further preferred that: it also includes a mounting frame and a protective mechanism, the mounting frame includes a mounting seat and a protective shell, the protective shell is fixed on the mounting seat, and the protective shell is arranged around the camera; The base plate is fixed on the mounting seat; The protection mechanism is arranged outside the protection shell and is used to hide and protect the camera.

[0017] It is further preferred that: the protection mechanism includes a driving disc, a sliding plate, a fixing plate, an insert block and a power mechanism; The driving disk is located in front of the camera and the protective housing, a center hole for exposing the camera is opened in the center of the driving disk, and the sliding plate and the fixing plate are both located between the driving disk and the camera; The slide plate is provided with two upper and lower slide plates, the two slide plates are close to each other to close the central hole, the fixing plate is fixed on the protective shell and is located on two opposite sides of the slide plate, and the driving disc is rotatably matched with the fixing plate; The driving disk is provided with a slideway, the slideway is arc-shaped and one end of the slideway is close to the central hole and the other end is close to the circumferential surface of the driving disk. The insert block is fixed on the slide plate and inserted in the slideway; The driving plate is fixed on the sliding plate so as to drive the driving plate to move up and down through the sliding plate; The power mechanism is used to drive the driving disc to rotate.

[0018] It is further preferred that: the power mechanism includes gears, a drive shaft and a motor; The motor is mounted on the protective housing or the mounting base, one end of the drive shaft is fixed to the center of the gear, and the other end is connected to the motor output shaft. A tooth surface is provided on the circumferential surface of the drive disk, and the gear is located on one side of the drive disk and meshes with the tooth surface.

[0019] It is further preferred that: the detection body is provided with an up-and-down driving mechanism, and the up-and-down driving mechanism is used to drive the camera to move up and down; The up-and-down driving mechanism comprises a housing, a lead screw, a moving block and a driving motor, wherein the housing is fixed below the detection body, the lead screw is located inside the housing, the lower end of the lead screw is inserted into the inner wall of the housing, and the upper end is connected to the output shaft of the driving motor, and the driving motor is installed in the detection body; The moving block is sleeved on the lead screw and matched with the lead screw thread. The moving block and the shell are slidably arranged up and down. The shell is opened on one side close to the camera. The moving block passes through the shell opening and is fixed to the mounting seat.

[0020] It is further preferred that: it also includes a support frame, a transmission device and a connecting plate; The transmission device is arranged on the support frame and is used for driving the detection body to move back and forth above the crops. The detection body is fixed on a connecting plate, and the connecting plate is fixed on the transmission device.

[0021] In summary, the present invention has the following beneficial effects: (1) Good shooting effect. The present invention is provided with a push-off mechanism, which can push the obstruction in front of the camera to one side through the inner lever and the outer lever, so as to obtain a clear and complete picture. It is convenient to detect the main body shuttling or moving between crops.

[0022] (2) Good protection. The camera in the present invention adopts a hidden design. When shooting, the slide opens the center hole to expose the camera for shooting. After shooting, the slide closes the center hole. It is simple and convenient to use, and can effectively protect the camera and increase the service life of the camera.

[0023] (3) Safe and reliable to use. The detection body of the present invention is suspended above the crops and does not need to move on the ground, which can reduce damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of Example 1, which is mainly used to reflect the overall structure of the crop disease detection device; Figure 2 It is a side view schematic diagram in Example 1, which is mainly used to illustrate the side structure of the crop disease detection device; Figure 3 It is a structural schematic diagram of Example 1, which is mainly used to reflect the coordination structure between the upper and lower drive mechanisms and the mounting frame; Figure 4 It is a schematic diagram of the structure in Example 1, which is mainly used to reflect the coordination structure between the upper and lower drive mechanisms, the mounting frame, and the protection mechanism; Figure 5 It is a partial structural diagram of Example 1, which is mainly used to illustrate the structures of the protection mechanism and the opening mechanism; Figure 6 It is a structural schematic diagram in Example 1, which is mainly used to reflect the installation structure of the sliding plate and the fixing plate; Figure 7 It is a schematic diagram of the structure in Embodiment 1, and is mainly used to illustrate the structure of the drive disk; Figure 8 It is a schematic diagram of the mechanism in Embodiment 1, mainly used to illustrate the structure of the opening mechanism; Fig. 9 It is a cross-sectional schematic diagram in Example 1, which is mainly used to illustrate the structure of the protection mechanism and the opening mechanism.

[0025] In the figure, 1. support frame; 2. transmission device; 3. connecting plate; 4. detection body; 5. upper and lower driving mechanism; 51. shell; 52. lead screw; 53. moving block; 6. mounting frame; 61. mounting seat; 62. protective shell; 7. protective mechanism; 71. driving disk; 72. slide plate; 73. fixing plate; 74. slideway; 75. plug-in block; 761. gear; 762. driving shaft; 763. motor; 77. slide bar; 78. center hole; 79. tooth surface; 8. opening mechanism; 81. rotating shaft; 82. bottom plate; 83. driving plate; 841. inner lever; 842. outer lever; 85. slide groove; 9. camera. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] Embodiment 1: A crop disease detection device, such as Figure 1-9 As shown, it includes a detection body 4, a camera 9 mounted on the detection body 4, a disengaging mechanism 8, a mounting frame 6, a protective mechanism 7, a support frame 1, a transmission device 2 and a fixing plate 73. The support frame 1 is mounted on the ground, the detection body 4 is suspended above the crops through the transmission device 2, and the transmission device 2 is mounted on the support frame 1 and is used to drive the detection body 4 to move back and forth above the crops. The detection body 4 is fixed on the connecting plate 3, and the connecting plate 3 is fixed on the transmission device 2.

[0028] Preferably, the transmission device 2 may be a chain transmission, or a cable transmission or other transmission methods. Specifically, in this embodiment, the transmission device 2 is a chain transmission. That is: Reference Figure 1-2 The transmission device 2 includes a transmission motor, a connecting shaft and two sets of transmission mechanisms. The transmission mechanism includes a driving sprocket, a driven sprocket and a chain. The two ends of the chain are respectively sleeved on the driving sprocket and the driven sprocket and are respectively engaged with them. The connecting shaft is fixed between the two driving sprockets and the two driven sprockets of the two sets of transmission mechanisms. The transmission motor is installed on the support frame 1, and the connecting shaft fixed on the driving sprocket is connected to the output shaft of the transmission motor. The connecting plate 3 is fixed on the chain, and the driving sprocket and the driven sprocket are both rotatably connected to the support frame 1.

[0029] In the above technical solution, when the transmission motor is started, the driving sprocket and the driven sprocket will rotate, thereby driving the chain, the fixing plate 73 and the detection body 4 to move back and forth above the crops.

[0030] like Figure 1-9 As shown, the detection body 4 is provided with an up-and-down driving mechanism 5, which is used to drive the camera 9 to move up and down. The up-and-down driving mechanism 5 includes a housing 51, a lead screw 52, ​​a moving block 53 and a driving motor. The housing 51 is fixed below the detection body 4, and the lead screw 52 is vertically arranged and located in the housing 51. The lower end of the lead screw 52 is inserted into the inner wall of the housing 51, and the upper end is connected to the output shaft of the driving motor, and the driving motor is installed in the detection body 4. The moving block 53 is sleeved on the lead screw 52 and is threadedly matched with the lead screw 52. The moving block 53 and the housing 51 are slidably arranged up and down. The housing 51 is opened on the side close to the camera 9. The moving block 53 passes through the opening of the housing 51 and is fixed to the mounting bracket 6.

[0031] Preferably, the mounting bracket 6 includes a mounting seat 61 and a protective shell 62, wherein the protective shell 62 is fixed on the mounting seat 61, and the protective shell 62 is arranged around the camera 9. The upper end of the mounting seat 61 is fixed to the moving block 53.

[0032] In the above technical solution, when the camera 9 takes pictures for crop disease identification, the camera 9 often needs to be lowered to a certain position. For this reason, the present invention is provided with an up-and-down driving mechanism 5 to adjust the shooting height of the camera 9. When the driving motor is started, the lead screw 52 will rotate around its central axis in the housing 51, thereby driving the moving block 53 to move downward until it reaches a suitable height.

[0033] Preferably, in order to facilitate the camera 9 to capture clear images under different lighting conditions, a light source can be arranged around the camera 9.

[0034] like Figure 1-9 As shown, the pushing mechanism 8 is used to push outward the obstruction blocking the front of the camera 9. The pushing mechanism 8 includes a rotating shaft 81, a bottom plate 82, a driving plate 83 and a lever. The rotating shaft 81 and the lever are both located in front of the camera 9. The lever is fixed to the circumferential surface of the rotating shaft 81 and is used to push the obstruction blocking the front of the camera 9 to one side. In order to better push the obstruction to one side, preferably, the lever includes an inner lever 841 and an outer lever 842. The inner lever 841 and the outer lever 842 are both arc-shaped and fixed on the rotating shaft 81. The connection between the inner lever 841 and the rotating shaft 81 is located above the connection between the outer lever 842 and the rotating shaft 81. The inner lever 841 is located on the side of the outer lever 842 close to the camera 9. The inner lever 841 and the outer lever 842 are both located on the side in front of the camera 9. The rotating shaft 81 passes through the driving plate 83 and the lower end is inserted into the bottom plate 82 . The bottom plate 82 is fixed on the mounting seat 61 . The driving plate 83 is used to drive the rotating shaft 81 to rotate around its central axis.

[0035] Preferably, a slider and a slide groove 85 are provided between the driving plate 83 and the rotating shaft 81 . When the driving plate 83 moves up and down, the driving plate 83 will drive the rotating shaft 81 to rotate around its central axis with the cooperation of the slider and the slide groove 85 .

[0036] Specifically, the slide groove 85 is spirally wound around the circumferential surface of the rotating shaft 81 , and a through hole is opened on the driving plate 83 for the rotating shaft 81 to pass through up and down. One end of the slider is fixed to the inner side of the through hole of the driving plate 83 , and the other end is inserted into the slide groove 85 .

[0037] In the above technical solution, when the camera 9 takes pictures for crop disease detection, the camera 9 often needs to be lowered to a certain position. In this way, the leaves, flowers, fruits and other parts of the crops are easily attached to the surface of the camera 9, causing obstruction. In order to push away the obstruction, the present invention is provided with a push-away mechanism 8. When the driving plate 83 moves downward, with the cooperation of the slider and the slide groove 85, the rotating shaft 81 will drive the inner lever 841 and the outer lever 842 to rotate, so that the inner lever 841 and the outer lever 842 rotate from one side in front of the camera 9 to the other side in front of the camera 9. During the rotation process, the inner lever 841 and the outer lever 842 will push away the obstruction in front of the camera 9, thereby improving the shooting quality.

[0038] like Figure 1-9 As shown, the protective mechanism 7 includes a driving disk 71, a slide plate 72, a fixing plate 73, an insert 75 and a power mechanism. The driving disk 71 is disc-shaped and is located in front of the camera 9 and the protective housing 62. A center hole 78 for exposing the camera 9 is opened in the center of the driving disk 71. The slide plate 72 and the fixing plate 73 are both located between the driving disk 71 and the camera 9. The front and rear sides of the slide plate 72 and the fixing plate 73 are in contact with the driving disk 71 and the protective housing 62 respectively. The slide plate 72 is provided with two upper and lower slide plates, and the two slide plates 72 are close to and in contact with each other to close the center hole 78, so that the camera 9 is hidden behind the slide plate 72. The fixing plate 73 is fixed on the protective housing 62 and is located on opposite sides of the slide plate 72. The slide plate 72 moves up and down between the two fixing plates 73. The driving disk 71 and the fixed plate 73 are rotatably matched. Specifically, a sliding bar 77 is provided on the side of the fixed plate 73 close to the driving disk 71. The sliding bar 77 is arc-shaped and the center of the circle coincides with the center of the center hole 78. A sliding rail compatible with the sliding bar 77 is provided on the rear side of the driving disk 71. The sliding bar 77 is embedded in the sliding rail and slidably matches with the sliding rail.

[0039] Two slideways 74 are provided on the driving disk 71. The slideways 74 are arc-shaped and one end of the slideways 74 is close to the center hole 78, and the other end is close to the circumferential surface of the driving disk 71. The insert block 75 is a cylindrical block and one end of the plug block is fixed on the slide plate 72, and the other end is inserted into the slideway 74. The insert block 75 is used to slide in the slideway 74. The driving plate 83 is fixed on the lower slide plate 72 to drive the driving plate 83 to move up and down through the slide plate 72. The driving plate 83 is located below the driving disk 71.

[0040] The power mechanism is used to drive the driving disk 71 to rotate. Preferably, the power mechanism includes a gear 761, a driving shaft 762 and a motor 763. The motor 763 is mounted on the protective housing 62 or the mounting seat 61. One end of the driving shaft 762 is fixed to the center of the gear 761, and the other end is connected to the output shaft of the motor 763. The circumferential surface of the driving disk 71 is provided with a tooth surface 79. The gear 761 is located on one side of the driving disk 71 and is meshed with the tooth surface 79.

[0041] In the above technical solution, the camera 9 is exposed to the outside, which is easy to accumulate dust and be blocked by mud, fallen leaves, etc., especially when the detection body 4 shuttles between crops or extends into them, it is easy to produce scratches, which affects the quality and service life of the camera 9. For this reason, the present invention is provided with a protective mechanism 7. When taking a photo, the motor 763 is started, the gear 761 will drive the driving disk 71 to rotate, and under the cooperation of the plug block 75 and the slide 74, the two slides 72 move away from each other, and the center hole 78 is opened to expose the camera 9. After the photo is taken, the gear 761 will drive the driving disk 71 to rotate in the opposite direction, and under the cooperation of the plug block 75 and the slide 74, the two slides 72 move towards each other, and the center hole 78 is closed, and the camera 9 is hidden behind the slide 72.

[0042] In the present invention, when the camera 9 takes a picture, the two slide plates 72 move away from each other, and the center hole 78 opens to expose the camera 9. As the lower slide plate 72 moves downward, the drive plate 83 moves downward synchronously. With the cooperation of the slider and the slide groove 85, the shaft 81 rotates, so that the inner lever 841 and the outer lever 842 rotate from one side in front of the camera 9 to the other side in front of the camera 9, thereby pushing away the obstruction in front of the camera 9 to one side, so as to obtain a clear and complete picture. After the picture is taken, the two slide plates 72 move toward each other, and the drive plate 83 moves upward with the lower slide plate 72. With the cooperation of the slider and the slide groove 85, the shaft 81 reverses, and the inner lever 841 and the outer lever 842 are reset.

[0043] Embodiment 2: A crop disease detection device, which is different from Embodiment 1 in that a slide groove 85 is spirally arranged on the inner side of the perforation of the driving plate 83 , one end of the slider is fixed to the circumferential surface of the rotating shaft 81 , and the other end is inserted into the slide groove 85 .

[0044] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A crop disease detection device, comprising a detection body (4) and a camera (9) mounted on the detection body (4), characterized in that: It also includes a dislodging mechanism (8) for dislodging an obstruction blocking the front of the camera (9) outwards; The pushing mechanism (8) comprises a rotating shaft (81), a bottom plate (82), a driving plate (83) and a lever, wherein the rotating shaft (81) and the lever are both located in front of the camera (9), the lever is fixed to the circumferential surface of the rotating shaft (81) and is used to push away a blocking object in front of the camera (9) to one side, the rotating shaft (81) passes through the driving plate (83) and the lower end is inserted into the bottom plate (82), and the driving plate (83) is used to drive the rotating shaft (81) to rotate around its central axis.

2. A crop disease detection device according to claim 1, characterized in that: A slider and a slide groove (85) are provided between the driving plate (83) and the rotating shaft (81); when the driving plate (83) moves up and down, the driving plate (83) drives the rotating shaft (81) to rotate around its central axis in cooperation with the slider and the slide groove (85).

3. A crop disease detection device according to claim 2, characterized in that: The slide groove (85) is spirally arranged on the circumferential surface of the rotating shaft (81); one end of the slider is fixed to the driving plate (83), and the other end is inserted into the slide groove (85).

4. A crop disease detection device according to claim 2, characterized in that: The slide groove (85) is spirally arranged on the driving plate (83); one end of the slider is fixed to the surface of the rotating shaft (81), and the other end is inserted into the slide groove (85).

5. The crop disease detection device according to claim 1, characterized in that: The lever comprises an inner lever (841) and an outer lever (842); the inner lever (841) and the outer lever (842) are both fixed on the rotating shaft (81); the inner lever (841) is located on a side of the outer lever (842) close to the camera (9).

6. The crop disease detection device according to claim 1, characterized in that: It also includes a mounting frame (6) and a protective mechanism (7), the mounting frame (6) including a mounting seat (61) and a protective shell (62), the protective shell (62) being fixed on the mounting seat (61), and the protective shell (62) being arranged around the camera (9); The bottom plate (82) is fixed on the mounting seat (61); The protection mechanism (7) is arranged outside the protection housing (62) and is used to hide and protect the camera (9).

7. A crop disease detection device according to claim 6, characterized in that: The protection mechanism (7) comprises a driving disk (71), a sliding plate (72), a fixing plate (73) (3), an insert block (75) and a power mechanism; The driving disk (71) is located in front of the camera (9) and the protective housing (62); a center hole (78) for exposing the camera (9) is provided in the center of the driving disk (71); and the sliding plate (72) and the fixing plate (73) (3) are both located between the driving disk (71) and the camera (9); The slide plate (72) is provided with two upper and lower slide plates (72), the two slide plates (72) are close to each other to close the central hole (78), the fixing plate (73) (3) is fixed on the protective shell (62) and is located on two opposite sides of the slide plate (72), and the driving plate (71) is rotatably matched with the fixing plate (73) (3); The driving disk (71) is provided with a slideway (74), the slideway (74) is arc-shaped and has one end close to the central hole (78) and the other end close to the circumferential surface of the driving disk (71), and the insert block (75) is fixed on the slide plate (72) and inserted into the slideway (74); The driving plate (83) is fixed on the sliding plate (72) so as to drive the driving plate (83) to move up and down through the sliding plate (72); The power mechanism is used to drive the driving disc (71) to rotate.

8. A crop disease detection device according to claim 7, characterized in that: The power mechanism comprises a gear (761), a drive shaft (762) and a motor (763); The motor (763) is mounted on the protective housing (62) or the mounting seat (61); one end of the drive shaft (762) is fixed to the center of the gear (761), and the other end is connected to the output shaft of the motor (763); a tooth surface (79) is provided on the circumferential surface of the drive disk (71); and the gear (761) is located on one side of the drive disk (71) and is meshed with the tooth surface (79).

9. The crop disease detection device according to claim 6, characterized in that: The detection body (4) is provided with an up-and-down driving mechanism (5), and the up-and-down driving mechanism (5) is used to drive the camera (9) to move up and down; The up-and-down driving mechanism (5) comprises a housing (51), a lead screw (52), a moving block (53) and a driving motor, wherein the housing (51) is fixed below the detection body (4), the lead screw (52) is located inside the housing (51), the lower end of the lead screw (52) is inserted into the inner wall of the housing (51), and the upper end is connected to the output shaft of the driving motor, and the driving motor is installed inside the detection body (4); The moving block (53) is sleeved on the lead screw (52) and threadably engaged with the lead screw (52); the moving block (53) and the housing (51) are slidably arranged up and down; a side of the housing (51) close to the camera (9) is provided with an opening; the moving block (53) passes through the opening of the housing (51) and is fixed to the mounting seat (61).

10. The crop disease detection device according to claim 1, characterized in that: It also includes a support frame (1), a transmission device (2) and a connecting plate (3); The transmission device (2) is arranged on the support frame (1) and is used to drive the detection body (4) to move back and forth above the crops; the detection body (4) is fixed on a connecting plate (3), and the connecting plate (3) is fixed on the transmission device (2).

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