Device for detecting crop disease and insect pest information

Abstract

The invention provides a crop disease and insect pest information detection device which comprises a moving box, a portal frame, walking wheels, an electric signal measuring mechanism and an isolation mechanism, the isolation mechanism comprises an electric rotary table, a rotary column, a reverse displacement mechanism and a transparent protection cover, and the moving box can move along the two sides of crops; after the leaves on the two sides of the crop with the almost height are selected, the transparent protection cover can be adjusted to the position above and below the leaf on one side, then the reverse displacement mechanism can drive the transparent protection cover to move and cover the outer side of the leaf, the leaf is isolated from the external environment, and the leaf on the other side is not treated for contrast. After the crops naturally grow for a period of time, the transparent protective cover can be removed, micro-current signals of the leaves on the two sides are collected through the electric signal measuring mechanism, and the main control unit judges whether the crops are eroded by diseases and insect pests or not according to the difference of the micro-current signals after growth, so that prevention and control can be intervened in time, and normal growth of the crops is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of pest control, and in particular to a device for detecting crop pest information. Background Art

[0002] During their growth, crops are susceptible to pests and diseases, which often lead to obstructed leaf photosynthesis, decreased root absorption capacity, and abnormal development of reproductive organs, resulting in a significant reduction in yield. Therefore, early detection of crop pests and diseases is necessary for early prevention and control. Most current detection devices rely on environmental parameters or isolated electrical signal analysis of 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 a single detection data is difficult to distinguish between normal physiological changes and pest and disease invasions. On the other hand, traditional methods have difficulty capturing early abnormalities during the incubation period of pests and diseases, resulting in delayed early warning. In particular, there is a lack of design to eliminate background noise by setting up self-control, resulting in 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, which can improve the accuracy of pest and disease detection results through comparison, so as to facilitate timely prevention and treatment and avoid crops from being eroded by pests and diseases.

[0004] The technical solution of the present invention is achieved as follows:

[0005] A device for detecting information on crop diseases and insect pests, comprising a mobile box, a gantry, walking wheels, an electric signal measuring mechanism and an isolation mechanism, wherein the opposite side of the mobile box is open, the bottom ends of both sides of the gantry are connected to the top surface of the mobile box, and the walking wheels are arranged on the bottom surface of the mobile box; the electric signal measuring mechanism is arranged inside the mobile box, and comprises 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, an electrode sheet, a second electric push rod and a main control unit, the horizontal electric slide is arranged 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 arranged 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 opening of the U-shaped frame faces downward, and the column is arranged 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 sheet is arranged at the ends of the top rod and the lifting rod away from the column, the second electric push rod is arranged on the top surface of the U-shaped frame, and its output shaft is connected to the bottom surface of the lifting rod, and the main control unit is arranged 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 arranged on the inner side wall of the U-shaped frame in the moving box on one side, and its rotating surface is connected to the side wall of the rotating column, the reverse displacement mechanism is arranged at the bottom of the rotating column, and is used to drive the relative transparent protective cover to move, and the opposite side walls of the transparent protective cover are open, and the main control unit is electrically connected to the horizontal electric slide, the vertical electric slide, the first electric push rod, the electrode sheet, the second electric push rod, the electric turntable and the reverse displacement mechanism respectively.

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

[0007] Preferably, a locking mechanism is also included, which includes a rotating motor, a driving wheel, a screw, a driven wheel, a synchronous belt and a tapered rod. The rotating motor is arranged on the bottom surface of the moving box, and its output shaft is connected to the driving 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 synchronous belt connects the driving wheel and the driven wheel. The tapered rod is arranged at the bottom end of the screw. The main control unit is electrically connected to the rotating 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 moving box, the rotating motor is arranged on the mounting plate, and the spring connects the bottom surface of the mounting plate and the inner bottom surface of the moving box.

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

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

[0011] Preferably, the reverse movement mechanism further comprises a bearing seat, the bearing seat is relatively arranged on the bottom surface of the rotating column, and the end of the screw rod away from the dual-axis motor is connected to the bearing seat.

[0012] Preferably, an arc-shaped groove is provided at the bottom of one of the transparent protective covers, and the arc-shaped groove 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 pipe. The airbag is arranged on the inner wall of the arc-shaped groove, and the micro air pump is arranged on the side wall of the transparent protective cover. The air 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 also includes a circulation pump, a telescopic tube and a one-way valve. A storage chamber is provided in the rotating column, and sterile air is stored in the storage chamber. The circulation pump is arranged in the storage chamber. One end of the telescopic tube extends into the storage chamber and is connected to the circulation pump, and the other end is connected to the side wall of the transparent protective cover on one side. The one-way valve is arranged on the side wall of the transparent protective cover on the other side, and the main control unit is electrically connected to the circulation pump.

[0014] Preferably, the isolation mechanism further includes a replenishing pipe and a valve. The replenishing pipe is arranged on the side wall of the rotating column and is connected to the storage chamber. The valve is arranged on the replenishing pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] ① The mobile boxes on both sides can move along the two sides of the crops. The horizontal and vertical electric slides can drive the electrode sheets to the corresponding positions of the crop leaves. Then, the first and second electric push rods can clamp the electrode sheets on the upper and lower sides of the leaves to collect the electrical signals of the leaves. The electrical signals can be used to assess whether the leaves are eroded by pests and diseases, so that preventive measures can be taken in time.

[0017] ② Before conducting electrical signal detection, you can select two leaves of the same crop with similar growth height as the detection objects. One side is covered on the outside with a transparent protective cover to isolate the leaves from the external environment, while the other side of the leaves is exposed to the outside. After a period of natural growth, the electrical signals of the leaves on both sides can be collected and used as a comparison to evaluate whether the leaves are eroded by pests and diseases, thereby improving the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic structural diagram of a device for detecting crop pests and diseases according to the present invention;

[0020] Figure 2 This is a schematic diagram of the connection structure of the electrical signal measuring mechanism and the isolation mechanism of a device for detecting information of crop diseases and insect pests of the present invention;

[0021] Figure 3 This is a schematic diagram of the connection structure between a U-shaped frame and a rotating column of a device for detecting crop pests and diseases according to the present invention;

[0022] Figure 4 This is a schematic diagram of the connection structure between a transparent protective cover and an airbag for a device for detecting information on crop diseases and insect pests according to the present invention;

[0023] In the figure, 1. moving box; 2. gantry; 3. walking wheel; 4. horizontal electric slide; 5. vertical electric slide; 6. first electric push rod; 7. U-shaped frame; 8. column; 9. push rod; 10. lifting rod; 11. electrode sheet; 12. second electric push rod; 13. main control unit; 14. electric turntable; 15. rotating column; 16. transparent protective cover; 17. camera; 18. rotating motor; 19. driving wheel; 20. screw Rod; 21. Driven pulley; 22. Synchronous belt; 23. Tapered rod; 24. Mounting plate; 25. Spring; 26. Dual-axis motor; 27. Screw; 28. Movable rod; 29. ​​Slider; 30. Slide; 31. Bearing seat; 32. Arc groove; 33. Airbag; 34. Micro air pump; 35. Air pipe; 36. Circulation pump; 37. Telescopic tube; 38. One-way valve; 39. Storage chamber; 40. Replenishing pipe; 41. Valve. DETAILED DESCRIPTION

[0024] In order to better understand the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0025] See also Figures 1 to 4 The present invention provides a device for detecting information of crop diseases and insect pests, comprising a mobile box 1, a gantry 2, a walking wheel 3, an electric signal measuring mechanism and an isolation mechanism, wherein the opposite side of the mobile box 1 is open, the bottom ends of both sides of the gantry 2 are connected to the top surface of the mobile box 1, and the walking wheel 3 is arranged on the bottom surface of the mobile box 1; the electric signal measuring mechanism is arranged inside the mobile box 1, and comprises 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 sheet 11, a second electric push rod 12 and a main control unit 13, the horizontal electric slide 4 is arranged on the inner wall of the mobile box 1, and its mover is connected to the side wall of the vertical electric slide 5, the mover of the vertical electric slide 5 faces the open side of the mobile box 1, the first electric push rod 6 is arranged on the side wall of the mover 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 downward, and the column 8 is arranged on the U-shaped frame 7 On the top surface, the push rod 9 is located at the top of the column 8, the lifting rod 10 is located below the push rod 9, the electrode sheet 11 is arranged at the ends of the push rod 9 and the lifting rod 10 away from the column 8, the second electric push rod 12 is arranged 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, and the main control unit 13 is arranged on the inner 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 arranged on the inner wall of the U-shaped frame 7 in the moving box 1 on one side, and its rotating surface is connected to the side wall of the rotating column 15, the reverse displacement mechanism is arranged at the bottom of the rotating column 15, for driving the relative transparent protective cover 16 to move, and the opposite side walls of the transparent protective cover 16 are open, and 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 sheet 11, the second electric push rod 12, the electric turntable 14 and the reverse displacement mechanism respectively.

[0026] The present invention is a device for detecting information on crop diseases and insect pests, which uses a method of collecting microcurrent signals on crop leaves to determine whether the crops are eroded by pests and diseases. The mobile boxes 1 on both sides are connected to form an integrated structure through a gantry 2. The gantry 2 can be located above the crops to be detected, and the mobile boxes 1 are located on both sides of the crops to be detected. The walking wheels 3 can enable the entire detection device to move along the planted crops to achieve automated detection. After the opposite side walls of the mobile boxes 1 on both sides are opened, the electric signal measuring mechanism can realize the collection of microcurrent signals of the crops. First, the specific position of the U-shaped frame 7 can be adjusted by the horizontal electric slide 4 and the vertical electric slide 5, and the top rod 9 and the lifting rod 10 are at the ends. The electrode piece 11 at the bottom extends to the outside of the U-shaped frame 7, so it can drive the two electrode pieces 11 to move to the upper and lower sides of the blade to be detected respectively, and then the first electric push rod 6 can drive the U-shaped frame 7 to move, so that the electrode piece 11 moves to the upper and lower sides of the blade to be detected, and then the second electric push rod 12 drives the lifting rod 10 to rise and the height of the U-shaped frame 7 is adjusted by the vertical electric slide 5, so that the electrode piece 11 can clamp the upper and lower surfaces of the blade, so that the electrode piece 11 can collect the microcurrent signal on the blade and transmit it to the main control unit 13. The main control unit 13 can determine whether the blade is eroded by pests and diseases based on the microcurrent signal. If there is erosion by pests and diseases, timely intervention can be carried out to avoid excessive losses.

[0027] Before conducting microcurrent signal detection, a control process can be performed on the detection of crop diseases and pests. After selecting leaves on both sides of the crop with similar height, the electric turntable 14 of the movable box 1 on one side can drive the rotating column 15 to rotate, so that the transparent protective cover 16 is rotated to one side of the blade. After adjusting the position of the U-shaped frame 7 by the first electric push rod 6, the transparent protective cover 16 is located on the upper and lower sides of the blade. Then the reverse displacement mechanism can drive the transparent protective cover 16 to move in the opposite direction, covering the blade inside to achieve isolation from the outside and prevent pests from directly contacting the blade. The leaves on the other side are not treated for control. After the crops have grown naturally for a period of time, the transparent protective cover 16 is removed, and the microcurrent signals of the leaves on both sides are collected through the electrode sheet 11 to evaluate whether they are eroded by pests and diseases. By comparing, false alarms caused by background noise can be avoided, and the warning lag problem caused by the incubation period of pests and diseases can be avoided, thereby improving the accuracy of the pest and disease detection results.

[0028] Preferably, the electrical signal measuring mechanism further includes a camera 17 , which is disposed on a 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 provided camera 17 can capture images of the blades, and then the main control unit 13 can select a suitable blade for isolation and micro-current signal collection.

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

[0031] When the mobile box 1 moves to the designated position, it is necessary to drive the U-shaped frame 7 to move to isolate the blades or collect microcurrent signals. At this time, it is necessary to ensure the stability of the position of the mobile box 1. Therefore, the present invention provides a locking mechanism. The rotating motor 18 can drive the driving wheel 19 to rotate. The driving wheel 19 drives the driven wheel 21 to rotate through the synchronous belt 22. The driven wheel 21 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 achieve the locking of the mobile box 1.

[0032] Preferably, the locking mechanism further includes a mounting plate 24 and a spring 25 , wherein the mounting plate 24 is located above the bottom surface of the moving box 1 , the rotating motor 18 is arranged 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 moving box 1 .

[0033] In the process of driving the screw 20 to rotate and then descend, the screw 20 can drive the rotating motor 18 to push the mounting plate 24 down through the driven wheel 21, the synchronous belt 22 and the driving wheel 19, so that the spring 25 is compressed. When the screw 20 rises, the spring 25 can drive the mounting plate 24 and the rotating motor 18 to rise. Setting the rotating motor 18 to an active form can ensure that the screw 20 can be smoothly raised and lowered to achieve the locking of the mobile box 1.

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

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

[0036] Preferably, a slider 29 is provided on the top of the movable rod 28 , a slide groove 30 is provided on the bottom surface of the rotating column 15 , and the slider 29 is located in the slide 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 to prevent the movable rod 28 from rotating along with the screw rod 27, so that 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 relatively arranged on the bottom surface of the rotating column 15 , and the end of the screw rod 27 away from the dual-axis motor 26 is connected to the bearing seat 31 .

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

[0040] Preferably, an arc-shaped groove 32 is provided at the bottom of one of the transparent protective covers 16, and the arc-shaped groove 32 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 pipe 35. The airbag 33 is arranged on the inner wall of the arc-shaped groove 32, and the micro air pump 34 is arranged on the side wall of the transparent protective cover 16. The air pipe 35 connects the micro air pump 34 and the airbag 33, and the main control unit 13 is electrically connected to the micro air pump 34.

[0041] When the transparent protective cover 16 is wrapped around the outside of the blade, in order to avoid damage to the blade rod, an arc-shaped groove 32 is provided at the open part of one of the transparent protective covers 16, and the blade rod can be located in the arc-shaped groove 32. When the transparent protective cover 16 completes the covering of the blade, the micro air pump 34 can be turned on, and the micro air pump 34 can deliver external air to the air bag 33 through the air pipe 35. After the air bag 33 is inflated, it can contact the outer wall of the blade rod to achieve sealing of the arc-shaped groove 32 and improve the isolation effect.

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

[0043] After the blades are isolated, the circulation pump 36 can be started. The circulation pump 36 can pass the sterile air in the storage chamber 39 into the transparent protective cover 16 through the telescopic tube 37 to replace the original air in the transparent protective cover 16. When the air pressure in the transparent protective cover 16 becomes higher, the one-way valve 38 will open, so that the originally dirty and bacteria-containing air will be discharged to the outside, providing a sterile living environment for the blades. During the growth process 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 replenishing pipe 40 and a valve 41 . The replenishing pipe 40 is provided on the side wall of the rotating column 15 and communicates with the storage chamber 39 . The valve 41 is provided on the replenishing pipe 40 .

[0045] When the content of sterile air in the storage chamber 39 is reduced, the valve 41 can be opened to replenish sterile air into the storage chamber 39 through the replenishing 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 in the scope of protection of the present invention.

Claims

1. A device for detecting crop pests and diseases, characterized in that: The gantry is connected to the top of the moving box by a gantry, and the travel wheels are arranged on the bottom of the moving box; the electric signal measuring mechanism is arranged inside the moving 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, an electrode sheet, a second electric push rod and a main control unit; the horizontal electric slide is arranged on the inner wall of the moving box, and its mover is connected to the side wall of the vertical electric slide, and the mover of the vertical electric slide faces the open side of the moving box, the first electric push rod is arranged 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 opening faces downward, the column is arranged on the top surface of the U-shaped frame, and the The top rod is located at the top of the column, the lifting rod is located below the top rod, the electrode sheet is arranged at the ends of the top rod and the lifting rod away from the column, the second electric push rod is arranged on the top surface of the U-shaped frame, and its output shaft is connected to the bottom surface of the lifting rod, and the main control unit is arranged on the inner 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 arranged on the inner wall of the U-shaped frame in the moving box on one side, and its rotating surface is connected to the side wall of the rotating column, the reverse displacement mechanism is arranged at the bottom of the rotating column, and is used to drive the relative transparent protective cover to move, and the opposite side walls of the transparent protective cover are open, and the main control unit is electrically connected to the horizontal electric slide, the vertical electric slide, the first electric push rod, the electrode sheet, the second electric push rod, the electric turntable and the reverse displacement mechanism respectively.

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

3. The device for detecting crop pests and diseases according to claim 1, characterized in that: It also includes a locking mechanism, which includes a rotating motor, a driving wheel, a screw, a driven wheel, a synchronous belt and a tapered rod. The rotating motor is arranged on the bottom surface of the moving box, and its output shaft is connected to the driving 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 synchronous belt connects the driving wheel and the driven wheel. The tapered rod is arranged at the bottom end of the screw. The main control unit is electrically connected to the rotating motor.

4. The device for detecting crop pests and diseases according to claim 3, characterized in that: The locking mechanism further comprises a mounting plate and a spring, wherein the mounting plate is located above the bottom surface of the moving box, the rotary motor is arranged on the mounting plate, and the spring connects the bottom surface of the mounting plate and the inner bottom surface of the moving box.

5. The device for detecting crop pests and diseases according to claim 1, characterized in that: The reverse movement mechanism includes a dual-axis motor, a screw rod and a movable rod. The dual-axis motor is arranged on the bottom surface of the rotating column, and its output shaft is connected to one end of the screw rod. The top end of the movable rod is slidingly connected to the bottom surface of the rotating column. The screw rod is screwed to the movable rod. 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 pests and diseases according to claim 5, characterized in that: A slider is provided at the top of the movable rod, a slide groove is provided at the bottom surface of the rotating column, and the slider is located in the slide groove.

7. The device for detecting crop pests and diseases according to claim 5, characterized in that: The reverse movement mechanism further comprises a bearing seat, which is arranged relative to the bottom surface of the rotating column, and the end of the screw rod away from the dual-axis motor is connected to the bearing seat.

8. The device for detecting crop pests and diseases according to claim 1, characterized in that: One of the transparent protective covers is provided with an arc-shaped groove at the 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 pipe. The airbag is arranged on the inner wall of the arc-shaped groove, and the micro air pump is arranged on the side wall of the transparent protective cover. The air pipe connects the micro air pump and the airbag, and the main control unit is electrically connected to the micro air pump.

9. The device for detecting crop pests and diseases 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 in the rotating column, and sterile air is stored in the storage chamber. The circulation pump is arranged in the storage chamber. One end of the telescopic tube extends into the storage chamber and is connected to the circulation pump, and the other end is connected to the side wall of the transparent protective cover on one side. The one-way valve is arranged 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. The device for detecting crop pests and diseases according to claim 9, characterized in that: The isolation mechanism further includes a replenishing pipe and a valve. The replenishing pipe is arranged on the side wall of the rotating column and is communicated with the storage chamber. The valve is arranged on the replenishing pipe.

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