A device for detecting information of crop diseases and insect pests

Abstract

The application provides a crop disease and pest information detection device, which comprises a moving box, a portal frame, a walking wheel, an electric signal measuring mechanism and an isolation mechanism, the isolation mechanism comprises an electric rotating table, a rotating column, a reverse displacement mechanism and a transparent protective cover, the moving box can move along the two sides of the crops, after selecting the two sides of the blades of the crops with almost the same height, the transparent protective cover can be adjusted to the upper and lower sides of the blades on one side, then the reverse displacement mechanism can drive the transparent protective cover to move and wrap the outside of the blades, the isolation of the blades and the external environment is realized, and the blades on the other side are not treated for comparison, after the crops grow naturally for a period of time, the transparent protective cover can be removed, and the micro-current signals of the blades on the two sides are collected through the electric signal measuring mechanism, and whether the crops are eroded by diseases and pests is judged according to the difference of the micro-current signals after comparison, so that timely intervention and prevention and control can be realized, and the normal growth of the crops is ensured.

Description

Technical Field

[0001] This invention relates to the field of pest and disease control technology, and in particular to a device for detecting information on crop pests and diseases. Background Technology

[0002] During the growth process, crops are susceptible to pests and diseases, which often lead to impaired photosynthesis in leaves, reduced root absorption capacity, and abnormal development of reproductive organs, resulting in a significant reduction in yield. Therefore, early detection of pests and diseases in crops is necessary for prevention and control. Most current detection devices rely on the analysis of environmental parameters or isolated electrical signals from a single leaf or plant, which has significant limitations: on the one hand, plant electrophysiological signals are easily affected by environmental fluctuations and individual differences, and single detection data is difficult to distinguish between normal physiological changes and pest and disease attacks; on the other hand, traditional methods are unable to capture early abnormalities during the incubation period of pests and diseases, resulting in delayed warnings. In particular, the lack of design to eliminate background noise by setting up self-controls leads to a high false alarm rate and an inability to accurately locate the initial infection area. Summary of the Invention

[0003] In view of this, the present invention proposes a device for detecting crop pests and diseases. By using a comparison method, the accuracy of pest and disease detection results can be improved, so as to facilitate timely prevention and treatment and avoid crop damage by pests and diseases.

[0004] The technical solution of this invention is implemented as follows:

[0005] A device for detecting crop diseases and pests includes a mobile box, a gantry frame, wheels, an electrical signal measuring mechanism, and an isolation mechanism. The mobile box has an open side. The bottom ends of both sides of the gantry frame are connected to the top surface of the mobile box. The wheels are located on the bottom surface of the mobile box. The electrical signal measuring mechanism is located inside the mobile box and includes a horizontal electric slide, a vertical electric slide, a first electric push rod, a U-shaped frame, a column, a top rod, a lifting rod, electrode plates, a second electric push rod, and a main control unit. The horizontal electric slide is located on the inner side wall of the mobile box, and its actuator is connected to the side wall of the vertical electric slide. The actuator of the vertical electric slide faces the open side of the mobile box. The first electric push rod is located on the side wall of the actuator of the vertical electric slide, and its output shaft is connected to the side wall of the U-shaped frame. The opening of the U-shaped frame faces downwards. The column is positioned... On the top surface of the U-shaped frame, the top rod is located at the top of the column, the lifting rod is located below the top rod, the electrode plate is located at the end of the top rod and the lifting rod away from the column, the second electric push rod is located on the top surface of the U-shaped frame, and its output shaft is connected to the bottom surface of the lifting rod. The main control unit is located on the inner side wall of the moving box. The isolation mechanism includes an electric turntable, a rotating column, a reverse displacement mechanism, and a transparent protective cover. The electric turntable is located on the inner side wall of the U-shaped frame in one side of the moving box, and its rotating surface is connected to the side wall of the rotating column. The reverse displacement mechanism is located at the bottom of the rotating column and is used to drive the relative transparent protective cover to move. The opposite side wall of the transparent protective cover is open. The main control unit is electrically connected to the horizontal electric slide, the vertical electric slide, the first electric push rod, the electrode plate, the second electric push rod, the electric turntable, and the reverse displacement mechanism.

[0006] Preferably, the electrical signal measuring mechanism further includes a camera, which is mounted on the side wall of the U-shaped frame away from the mobile box, and the main control unit is electrically connected to the camera.

[0007] Preferably, it also includes a locking mechanism, which includes a rotary motor, a driving wheel, a screw, a driven wheel, a timing belt, and a tapered rod. The rotary motor is disposed on the bottom surface of the movable box, and its output shaft is connected to the driving wheel. The screw passes through the bottom surface of the movable box and is screwed to the movable box. The driven wheel is sleeved on the screw. The timing belt connects the driving wheel and the driven wheel. The tapered rod is disposed at the bottom end of the screw. The main control unit is electrically connected to the rotary motor.

[0008] Preferably, the locking mechanism further includes a mounting plate and a spring. The mounting plate is located above the bottom surface of the movable box, the rotary motor is mounted on the mounting plate, and the spring connects the bottom surface of the mounting plate and the inner bottom surface of the movable box.

[0009] Preferably, the reverse movement mechanism includes a dual-axis motor, a lead screw, and a movable rod. The dual-axis motor is mounted on the bottom surface of the rotating column, and its output shaft is connected to one end of the lead screw. The top end of the movable rod is slidably connected to the bottom surface of the rotating column. The lead screw and the movable rod are screwed together. The top surface of the transparent protective cover is connected to the bottom end of the movable rod. The main control unit is electrically connected to the dual-axis motor.

[0010] Preferably, the top of the movable rod is provided with a slider, the bottom surface of the rotating column is provided with a groove, and the slider is located in the groove.

[0011] Preferably, the reverse movement mechanism further includes a bearing housing, which is disposed opposite to the bottom surface of the rotating column, and the end of the lead screw away from the dual-axis motor is connected to the bearing housing.

[0012] Preferably, one of the transparent protective covers has an arc-shaped groove at its bottom, which is connected to the open side of the transparent protective cover. The isolation mechanism also includes an airbag, a micro air pump and an air supply pipe. The airbag is disposed on the inner wall of the arc-shaped groove, the micro air pump is disposed on the side wall of the transparent protective cover, the air supply pipe connects the micro air pump and the airbag, and the main control unit is electrically connected to the micro air pump.

[0013] Preferably, the isolation mechanism further includes a circulation pump, a telescopic tube, and a one-way valve. The rotating column is provided with a storage chamber containing sterile air. The circulation pump is located in the storage chamber. One end of the telescopic tube extends into the storage chamber and is connected to the circulation pump, while the other end is connected to the side wall of a transparent protective cover on one side. The one-way valve is located on the side wall of the transparent protective cover on the other side. The main control unit is electrically connected to the circulation pump.

[0014] Preferably, the isolation mechanism further includes a replenishment pipe and a valve. The replenishment pipe is disposed on the side wall of the rotating column and communicates with the storage cavity, and the valve is disposed on the replenishment pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] ① The movable boxes on both sides can move along both sides of the crop. The horizontal electric slide and the vertical electric slide can move the electrode plate to the corresponding crop leaf position. Then, the first electric push rod and the second electric push rod can clamp the electrode plate on the upper and lower sides of the leaf to realize the collection of electrical signals of the leaf. The electrical signals can be used to assess whether the leaf is affected by pests and diseases, so that timely preventive treatment can be carried out.

[0017] ② Before conducting electrical signal detection, two leaves of the same crop at approximately the same height can be selected as the detection objects. One side is covered with a transparent protective cover to isolate the leaf from the external environment, while the other side is exposed. After a period of natural growth, electrical signals from both sides of the leaves can be collected as a control to assess whether the leaves are affected by pests and diseases, thereby improving the accuracy of the detection results. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only preferred embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a crop pest and disease information detection device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the connection structure between the electrical signal measuring mechanism and the isolation mechanism of a crop pest and disease information detection device according to the present invention.

[0021] Figure 3 This is a schematic diagram of the connection structure between the U-shaped frame and the rotating column of a crop pest and disease information detection device according to the present invention;

[0022] Figure 4 This is a schematic diagram of the connection structure between the transparent protective cover and the airbag in a crop pest and disease information detection device according to the present invention.

[0023] In the diagram: 1. Moving box; 2. Gantry frame; 3. Traveling wheels; 4. Horizontal electric slide; 5. Vertical electric slide; 6. First electric push rod; 7. U-shaped frame; 8. Column; 9. Top rod; 10. Lifting rod; 11. Electrode plate; 12. Second electric push rod; 13. Main control unit; 14. Electric turntable; 15. Rotating column; 16. Transparent protective cover; 17. Camera; 18. Rotary motor; 19. Drive wheel; 20. Screw 21. Driven wheel; 22. Synchronous belt; 23. Tapered rod; 24. Mounting plate; 25. Spring; 26. Dual-axis motor; 27. Lead screw; 28. Movable rod; 29. ​​Slider; 30. Slide groove; 31. Bearing seat; 32. Arc groove; 33. Airbag; 34. Miniature air pump; 35. Air supply pipe; 36. Circulating pump; 37. Telescopic pipe; 38. Check valve; 39. Storage chamber; 40. Replenishment pipe; 41. Valve. Detailed Implementation

[0024] To better understand the technical content of this invention, a specific embodiment is provided below, and the invention will be further described in conjunction with the accompanying drawings.

[0025] See Figures 1 to 4 This invention provides a device for detecting crop diseases and pests, comprising a mobile box 1, a gantry frame 2, wheels 3, an electrical signal measuring mechanism, and an isolation mechanism. The mobile box 1 has an open side. The bottom ends of both sides of the gantry frame 2 are connected to the top surface of the mobile box 1. The wheels 3 are located on the bottom surface of the mobile box 1. The electrical signal measuring mechanism is located inside the mobile box 1 and includes a horizontal electric slide 4, a vertical electric slide 5, a first electric push rod 6, a U-shaped frame 7, a column 8, a top rod 9, a lifting rod 10, an electrode plate 11, a second electric push rod 12, and a main control unit 13. The horizontal electric slide 4 is located on the inner wall of the mobile box 1, and its actuator is connected to the side wall of the vertical electric slide 5. The actuator of the vertical electric slide 5 faces the open side of the mobile box 1. The first electric push rod 6 is located on the side wall of the actuator of the vertical electric slide 5, and its output shaft is connected to the side wall of the U-shaped frame 7. The opening of the U-shaped frame 7 faces downwards. The column 8 is located on the U-shaped frame 7. On the top surface, the top rod 9 is located at the top of the column 8, the lifting rod 10 is located below the top rod 9, the electrode plate 11 is located at the end of the top rod 9 and the lifting rod 10 away from the column 8, the second electric push rod 12 is located on the top surface of the U-shaped frame 7, and its output shaft is connected to the bottom surface of the lifting rod 10. The main control unit 13 is located on the inner side wall of the moving box 1. The isolation mechanism includes an electric turntable 14, a rotating column 15, a reverse displacement mechanism, and a transparent protective cover 16. The electric turntable 14 is located on the inner side wall of the U-shaped frame 7 inside one side of the moving box 1, and its rotating surface is connected to the side wall of the rotating column 15. The reverse displacement mechanism is located at the bottom of the rotating column 15 and is used to drive the opposite transparent protective cover 16 to move. The opposite side wall of the transparent protective cover 16 is open. The main control unit 13 is electrically connected to the horizontal electric slide 4, the vertical electric slide 5, the first electric push rod 6, the electrode plate 11, the second electric push rod 12, the electric turntable 14, and the reverse displacement mechanism.

[0026] This invention discloses a device for detecting crop pests and diseases. It uses the method of collecting microcurrent signals from crop leaves to determine whether the crop is affected by pests or diseases. Two movable boxes 1 are connected as a single unit by a gantry frame 2. The gantry frame 2 can be positioned above the crop to be tested, while the movable boxes 1 are positioned on either side of the crop. Wheels 3 allow the entire detection device to move along the planted crop, achieving automated detection. With the opposite side walls of the two movable boxes 1 open, the electrical signal measuring mechanism can collect the microcurrent signals from the crop. The position of the U-shaped frame 7 can be adjusted using the horizontal electric slide 4 and the vertical electric slide 5. The top rod 9 and the lifting rod 10... The electrode plate 11 extends to the outside of the U-shaped frame 7, thus enabling the two electrode plates 11 to move to the upper and lower sides of the blade to be tested, respectively. Then, the first electric push rod 6 can drive the U-shaped frame 7 to move, so that the electrode plate 11 moves to the upper and lower sides of the blade to be tested. Then, the second electric push rod 12 drives the lifting rod 10 to rise and the vertical electric slide table 5 adjusts the height of the U-shaped frame 7, so that the electrode plate 11 can clamp the upper and lower surfaces of the blade. Thus, the electrode plate 11 can collect the micro-current signal on the blade and transmit it to the main control unit 13. The main control unit 13 can determine whether the blade is affected by pests and diseases based on the micro-current signal. If pests and diseases are present, timely intervention can be carried out to avoid excessive losses.

[0027] Before performing microcurrent signal detection, a control procedure can be performed for crop pest and disease detection. After selecting leaves of approximately the same height on both sides of the crop, the electric turntable 14 of one side of the moving box 1 can drive the rotating column 15 to rotate, causing the transparent protective cover 16 to rotate to one side of the leaf. After adjusting the position of the U-shaped frame 7 by the first electric push rod 6, the transparent protective cover 16 is positioned on the upper and lower sides of the leaf. Then, the reverse displacement mechanism can drive the transparent protective cover 16 to move in the opposite direction, covering the leaf inside and isolating it from the outside, preventing pests and diseases from directly contacting the leaf. The other side of the leaf is left untreated as a control. After the crop has grown naturally for a period of time, the transparent protective cover 16 is removed, and the microcurrent signals of both sides of the leaf are collected by the electrode plate 11 to assess whether the leaf has been attacked by pests and diseases. This control method can avoid false alarms caused by background noise and the problem of delayed warnings caused by the incubation period of pests and diseases, thus improving the accuracy of pest and disease detection results.

[0028] Preferably, the electrical signal measuring mechanism further includes a camera 17, which is disposed on the side wall of the U-shaped frame 7 away from the mobile box 1, and the main control unit 13 is electrically connected to the camera 17.

[0029] The camera 17 can capture images of the blades, and then the main control unit 13 can select a suitable blade for isolation and acquisition of microcurrent signals.

[0030] Preferably, it also includes a locking mechanism, which includes a rotary motor 18, a driving wheel 19, a screw 20, a driven wheel 21, a timing belt 22, and a cone rod 23. The rotary motor 18 is disposed on the bottom surface of the movable box 1, and its output shaft is connected to the driving wheel 19. The screw 20 passes through the bottom surface of the movable box 1 and is screwed to the movable box 1. The driven wheel 21 is sleeved on the screw 20. The timing belt 22 connects the driving wheel 19 and the driven wheel 21. The cone rod 23 is disposed at the bottom end of the screw 20. The main control unit 13 is electrically connected to the rotary motor 18.

[0031] Once the mobile box 1 is moved to the designated position, the U-shaped frame 7 needs to be moved to isolate the blades or collect micro-current signals. At this time, it is necessary to ensure the stability of the mobile box 1. Therefore, the present invention is equipped with a locking mechanism. The rotary motor 18 can drive the drive wheel 19 to rotate. The drive wheel 19 drives the driven wheel 21 to rotate through the synchronous belt 22. The driven wheel 21 then drives the screw 20 to rotate. Since the screw 20 is screwed to the bottom surface of the mobile box 1, it can move vertically. Finally, the cone rod 23 can be inserted into the soil to lock the mobile box 1.

[0032] Preferably, the locking mechanism further includes a mounting plate 24 and a spring 25. The mounting plate 24 is located above the bottom surface of the movable box 1, the rotary motor 18 is mounted on the mounting plate 24, and the spring 25 connects the bottom surface of the mounting plate 24 and the inner bottom surface of the movable box 1.

[0033] During the process of rotating and lowering the screw 20, the screw 20 can drive the rotary motor 18 to push the mounting plate 24 down through the driven wheel 21, the synchronous belt 22 and the driving wheel 19, which compresses the spring 25. When the screw 20 rises, the spring 25 can drive the mounting plate 24 and the rotary motor 18 to rise. Setting the rotary motor 18 to a movable form can ensure that the screw 20 can rise and fall smoothly to achieve the locking of the movable box 1.

[0034] Preferably, the reverse movement mechanism includes a dual-axis motor 26, a lead screw 27, and a movable rod 28. The dual-axis motor 26 is disposed on the bottom surface of the rotating column 15, and its output shaft is connected to one end of the lead screw 27. The top end of the movable rod 28 is slidably connected to the bottom surface of the rotating column 15. The lead screw 27 is screwed to the movable rod 28. The top surface of the transparent protective cover 16 is connected to the bottom end of the movable rod 28. The main control unit 13 is electrically connected to the dual-axis motor 26.

[0035] The dual-axis motor 26 can drive the lead screw 27 to rotate, and the movable rod 28 can convert the rotational motion of the lead screw 27 into linear motion, thereby driving the transparent protective cover 16 to move in different directions to cover or open the blade.

[0036] Preferably, the top of the movable rod 28 is provided with a slider 29, the bottom surface of the rotating column 15 is provided with a groove 30, and the slider 29 is located in the groove 30.

[0037] During the movement of the movable rod 28, the slider 29 can move along the slide groove 30. The slide groove 30 can limit the slider 29 and prevent the movable rod 28 from rotating with the lead screw 27. Thus, the movable rod 28 can convert the rotational motion into linear motion.

[0038] Preferably, the reverse movement mechanism further includes a bearing seat 31, which is disposed opposite to the bottom surface of the rotating column 15, and the end of the lead screw 27 away from the dual-axis motor 26 is connected to the bearing seat 31.

[0039] When the lead screw 27 rotates, its end can rotate under the support of the bearing seat 31, ensuring that the movable rod 28 can move stably.

[0040] Preferably, one of the transparent protective covers 16 has an arc-shaped groove 32 at its bottom, which is connected to the open side of the transparent protective cover 16. The isolation mechanism also includes an airbag 33, a micro air pump 34, and an air supply pipe 35. The airbag 33 is disposed on the inner wall of the arc-shaped groove 32, the micro air pump 34 is disposed on the side wall of the transparent protective cover 16, and the air supply pipe 35 connects the micro air pump 34 and the airbag 33. The main control unit 13 is electrically connected to the micro air pump 34.

[0041] When the transparent protective cover 16 covers the outside of the blade, in order to avoid damage to the blade rod, an arc-shaped groove 32 is provided at the opening of one of the transparent protective covers 16. The blade rod can be located in the arc-shaped groove 32. After the transparent protective cover 16 covers the blade, the micro air pump 34 can be turned on. The micro air pump 34 can deliver outside air to the air bag 33 through the air supply pipe 35. After the air bag 33 inflates, it can contact the outer wall of the blade rod to achieve a seal on the arc-shaped groove 32 and improve the isolation effect.

[0042] Preferably, the isolation mechanism further includes a circulation pump 36, a telescopic tube 37, and a one-way valve 38. A storage chamber 39 is provided inside the rotating column 15, and sterile air is stored in the storage chamber 39. The circulation pump 36 is disposed in the storage chamber 39. One end of the telescopic tube 37 extends into the storage chamber 39 and is connected to the circulation pump 36, and the other end is connected to the side wall of the transparent protective cover 16 on one side. The one-way valve 38 is disposed on the side wall of the transparent protective cover 16 on the other side. The main control unit 13 is electrically connected to the circulation pump 36.

[0043] After isolating the leaves, the circulation pump 36 can be started. The circulation pump 36 can introduce sterile air from the storage chamber 39 into the transparent protective cover 16 through the telescopic tube 37, replacing the original air in the transparent protective cover 16. When the air pressure inside the transparent protective cover 16 increases, the one-way valve 38 will open, allowing the originally polluted bacteria-containing air to be discharged to the outside, providing a sterile living environment for the leaves. During the growth of the leaves, oxygen can also be provided to the leaves through sterile air to ensure that the leaves can carry out photosynthesis normally.

[0044] Preferably, the isolation mechanism further includes a replenishment pipe 40 and a valve 41. The replenishment pipe 40 is disposed on the side wall of the rotating column 15 and communicates with the storage cavity 39. The valve 41 is disposed on the replenishment pipe 40.

[0045] When the amount of sterile air in the storage chamber 39 decreases, valve 41 can be opened to replenish sterile air into the storage chamber 39 through replenishment pipe 40.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for detecting crop diseases and pests, characterized in that, The device includes a mobile box, a gantry frame, wheels, an electrical signal measuring mechanism, and an isolation mechanism. The mobile box has an open side. The bottom ends of both sides of the gantry frame are connected to the top surface of the mobile box. The wheels are located on the bottom surface of the mobile box. The electrical signal measuring mechanism is located inside the mobile box and includes a horizontal electric slide, a vertical electric slide, a first electric push rod, a U-shaped frame, a column, a top rod, a lifting rod, electrode plates, a second electric push rod, and a main control unit. The horizontal electric slide is located on the inner side wall of the mobile box, and its mover is connected to the side wall of the vertical electric slide. The mover of the vertical electric slide faces the open side of the mobile box. The first electric push rod is located on the side wall of the mover of the vertical electric slide, and its output shaft is connected to the side wall of the U-shaped frame. The U-shaped frame opens downwards, and the column is located on the top surface of the U-shaped frame. The top rod is located at the top of the column, the lifting rod is located below the top rod, the electrode plate is located at the end of the top rod and the lifting rod away from the column, the second electric push rod is located on the top surface of the U-shaped frame, and its output shaft is connected to the bottom surface of the lifting rod. The main control unit is located on the inner side wall of the moving box. The isolation mechanism includes an electric turntable, a rotating column, a reverse displacement mechanism, and a transparent protective cover. The electric turntable is located on the inner side wall of the U-shaped frame in one side of the moving box, and its rotating surface is connected to the side wall of the rotating column. The reverse displacement mechanism is located at the bottom of the rotating column and is used to drive the relative transparent protective cover to move. The opposite side wall of the transparent protective cover is open. The main control unit is electrically connected to the horizontal electric slide, the vertical electric slide, the first electric push rod, the electrode plate, the second electric push rod, the electric turntable, and the reverse displacement mechanism.

2. The device for detecting crop diseases and pests according to claim 1, characterized in that, The electrical signal measuring mechanism also includes a camera, which is mounted on the side wall of the U-shaped frame away from the mobile box, and the main control unit is electrically connected to the camera.

3. The device for detecting crop diseases and pests according to claim 1, characterized in that, It also includes a locking mechanism, which comprises a rotary motor, a drive wheel, a screw, a driven wheel, a timing belt, and a cone rod. The rotary motor is located on the bottom surface of the moving box, and its output shaft is connected to the drive wheel. The screw passes through the bottom surface of the moving box and is screwed to the moving box. The driven wheel is sleeved on the screw. The timing belt connects the drive wheel and the driven wheel. The cone rod is located at the bottom end of the screw. The main control unit is electrically connected to the rotary motor.

4. The device for detecting crop diseases and pests according to claim 3, characterized in that, The locking mechanism also includes a mounting plate and a spring. The mounting plate is located above the bottom surface of the movable box, the rotary motor is mounted on the mounting plate, and the spring connects the bottom surface of the mounting plate and the inner bottom surface of the movable box.

5. The device for detecting crop diseases and pests according to claim 1, characterized in that, The reverse displacement mechanism includes a dual-axis motor, a lead screw, and a movable rod. The dual-axis motor is mounted on the bottom surface of the rotating column, and its output shaft is connected to one end of the lead screw. The top end of the movable rod is slidably connected to the bottom surface of the rotating column. The lead screw and the movable rod are screwed together. The top surface of the transparent protective cover is connected to the bottom end of the movable rod. The main control unit is electrically connected to the dual-axis motor.

6. The device for detecting crop diseases and pests according to claim 5, characterized in that, The movable rod is provided with a slider at its top end, and the rotating column is provided with a groove on its bottom surface, with the slider located in the groove.

7. A device for detecting crop diseases and pests according to claim 5, characterized in that, The reverse displacement mechanism also includes a bearing housing, which is disposed opposite to the bottom surface of the rotating column, and the end of the lead screw away from the dual-axis motor is connected to the bearing housing.

8. The device for detecting crop diseases and pests according to claim 1, characterized in that, One of the transparent protective covers has an arc-shaped groove at its bottom, which is connected to the open side of the transparent protective cover. The isolation mechanism also includes an airbag, a micro air pump and an air supply pipe. The airbag is disposed on the inner wall of the arc-shaped groove, the micro air pump is disposed on the side wall of the transparent protective cover, and the air supply pipe connects the micro air pump and the airbag. The main control unit is electrically connected to the micro air pump.

9. A device for detecting crop diseases and pests according to claim 1, characterized in that, The isolation mechanism also includes a circulation pump, a telescopic tube, and a one-way valve. A storage chamber is provided inside the rotating column, which stores sterile air. The circulation pump is located in the storage chamber. One end of the telescopic tube extends into the storage chamber and is connected to the circulation pump, while the other end is connected to the side wall of a transparent protective cover on one side. The one-way valve is located on the side wall of the transparent protective cover on the other side. The main control unit is electrically connected to the circulation pump.

10. A device for detecting crop diseases and pests according to claim 9, characterized in that, The isolation mechanism also includes a replenishment pipe and a valve. The replenishment pipe is disposed on the side wall of the rotating column and communicates with the storage cavity. The valve is disposed on the replenishment pipe.

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