A field disease and insect visual identification monitor

Abstract

The present application relates to the technical field of disease and pest monitoring, in particular to a fixed-point field disease and pest visual identification monitor, comprising a cylindrical shell, which is internally provided with a jet section, a transition neck section and a compression section in sequence; the jet section is internally provided with a flow guide mounting seat, and an annular air cavity is formed between the two; a visual identifier is coaxially integrated in the mounting seat; the compression section is internally provided with a push-pull plate driven by an impact cylinder and an elastic air bag; a plugging mechanism based on magnetic attraction triggering is arranged at the outlet of the air bag. The present application releases high-pressure gas instantaneously by compressing the air bag and cooperating with the plugging mechanism, forms a pulse airflow through the annular air cavity, exposes the back of the crop leaf blade instantaneously while blowing it open, and uses the coaxial visual identifier to take clear photos; effectively solves the problem of imaging blur caused by leaf shielding and continuous blowing, and improves the disease and pest identification accuracy.

Description

Technical Field

[0001] This invention relates to the field of pest and disease monitoring technology, specifically to a fixed-point field pest and disease visual recognition monitoring instrument. Background Technology

[0002] Early monitoring and identification of pests and diseases in the field are crucial for achieving precision agriculture, reducing pesticide use, and ensuring crop yields. Currently, pest and disease monitoring in the field mainly relies on manual inspections or automated monitoring equipment based on visual recognition technology. Visual recognition monitoring instruments typically use cameras to photograph crop leaves and then use image processing algorithms to identify lesions or insects on the leaf surface.

[0003] However, in actual field applications, existing visual recognition monitoring equipment has significant technical shortcomings: First, crop pests and diseases often lurk on the underside of leaves or are obscured by upper leaves. Traditional monitoring equipment mostly uses static or simple continuous shooting modes, making it difficult to capture image information of obscured parts or the underside of leaves, resulting in a high false negative rate and unsatisfactory monitoring results. Second, to solve the leaf obscuration problem, some existing technologies attempt to introduce airflow devices to disturb the plant's leaves, causing them to flip and expose the underside. However, existing airflow devices usually use continuous constant flow air. While this airflow can move the leaves, it often causes irregular high-frequency vibrations, making it difficult for cameras to capture clear and stable images during leaf movement. This results in blurred images and greatly reduces the accuracy of subsequent recognition algorithms.

[0004] Secondly, existing equipment typically uses a separate or side-mounted layout for the camera and airflow generator. This layout not only increases the size and complexity of the equipment but also causes the area of ​​airflow application to not coincide with the center of the camera's field of view. At the moment the airflow causes the blades to flip, the target area can easily deviate from the camera's optimal focusing range, or the uneven airflow coverage can lead to uncontrollable blade flipping angles. Furthermore, the complex field environment makes camera lenses susceptible to contamination from dust, fog, or insects, and existing airflow structures struggle to simultaneously clean or protect the lens, resulting in inconsistent image quality over long-term operation.

[0005] Therefore, there is an urgent need to develop a monitoring device that can balance the effect of leaf flipping and imaging stability. This device can effectively solve the problems of leaf shading and blind spots on the back, and avoid the interference of high-frequency leaf vibration caused by continuous wind on the recognition algorithm. At the same time, it is also necessary to optimize the layout relationship between the airflow generating device and the visual recognition component, so as to achieve precise overlap between the airflow action area and the shooting field of view, while using the airflow to self-clean and protect the lens, so as to adapt to the complex and ever-changing field operation environment. Summary of the Invention

[0006] Therefore, it is necessary to provide a fixed-point field pest and disease visual recognition and monitoring instrument to address the existing technical problems.

[0007] To address the problems of existing technologies, the technical solution adopted in this invention is: a fixed-point field pest and disease visual identification and monitoring instrument, comprising: The cylindrical outer shell is hollow inside and is connected in sequence along its length by an air jet section, a transition neck section and a compression section. All three sections have circular cross-sections, and the inner diameter of the air jet section is smaller than that of the compression section. A flow guide mounting base is disposed within the jet section, and an annular air cavity for gas flow is formed between the outer wall of the flow guide mounting base and the inner wall of the jet section. A visual identifier is installed inside the flow guide mounting base, with the acquisition end of the visual identifier facing the outlet direction of the jet section, and is used to identify the pest situation on the leaves of crops in the field; A gas generating mechanism, located within the compression section, is used to supply gas to the annular gas chamber. The gas generating mechanism includes: The push-pull plate slides and seals with the compression section along the length of the cylindrical outer shell; An elastic airbag is tubular and coaxially disposed within the compression section. One end of the elastic airbag is sealed and connected to the push-pull plate, and the other end serves as an air outlet connected to the transition neck section. The push-pull plate is equipped with an air inlet valve for unidirectional air supply to the elastic airbag. A sealing mechanism is provided at the air outlet of the elastic airbag facing the transition neck section. The sealing mechanism is used to open or close the air outlet of the elastic airbag according to the pressure inside the elastic airbag, so as to release high-pressure gas into the annular air chamber.

[0008] Furthermore, the blocking mechanism includes: The sealing head is circular and coaxially positioned at the air outlet of the elastic airbag; A connector for connecting the sealing head to the push-pull plate, the connector comprising: A sleeve is coaxially disposed inside the elastic airbag, one end of the sleeve is fixedly connected to the push-pull plate, and the other end extends toward the sealing head; The telescopic rod has one end coaxially inserted into the sleeve and the other end connected to the sealing head. The outer diameter of the telescopic rod is smaller than the inner diameter of the sleeve. The magnetic attraction kit includes a first magnetic ring, a second magnetic ring, and a circular magnetic block. The first magnetic ring is coaxially fixed inside the opening of the sleeve facing the sealing head, and the telescopic rod passes coaxially through the first magnetic ring. The second magnetic ring is coaxially fixed inside the end of the sleeve near the push-pull plate. The circular magnetic block acts as a piston head and is coaxially fixed to the telescopic rod, and the circular magnetic block is located between the first magnetic ring and the second magnetic ring.

[0009] Furthermore, the sealing head includes a circular frame and an elastic membrane. The circular frame is coaxially disposed at the air outlet of the elastic airbag. The elastic membrane is circular and coaxially disposed within the circular frame, with its outer edge fixedly connected to the circular frame. Several arc-shaped connecting rods are provided between the circular frame and the telescopic rod to connect the two. The end of the flow guide mounting base facing the elastic membrane is provided with a semi-circular limiting head coaxially disposed with the elastic membrane. When the sealing mechanism is opened and the gas is released, the elastic membrane moves toward the semi-circular limiting head and deforms under the action of the airflow, causing the elastic membrane to adhere to the surface of the semi-circular limiting head and guide the gas into the annular air cavity.

[0010] Furthermore, a mounting ring is coaxially fixed inside the jet section, and one end of the elastic airbag, which serves as the air outlet, is fixedly connected to the mounting ring. The mounting ring is coaxially formed with a conical ring extending into the elastic airbag. The diameter of the conical ring gradually decreases inward along the axial direction of the elastic airbag, and the outer peripheral wall of the circular frame forms a conical surface that can closely fit the inner wall of the conical ring.

[0011] Furthermore, the push-pull plate is circular and coaxially arranged with the compression section, and a guide ring is coaxially fixed to the outer peripheral wall of the push-pull plate, with the outer peripheral wall of the guide ring fitting against the inner wall of the compression section.

[0012] Furthermore, an impact cylinder is fixedly installed at the end of the compression section. The output end of the impact cylinder is fixedly connected to the push-pull plate. The impact cylinder is used to drive the push-pull plate to extend and retract along the length of the cylindrical shell, and the extension speed of the impact cylinder is greater than its retraction speed.

[0013] Furthermore, the outer wall at the end of the compression section is provided with a number of vent holes, each of which is located behind the push-pull plate during its stroke, for allowing external gas to enter the compression section.

[0014] Furthermore, the flow guide mounting base is cylindrical, and an installation cavity is formed inward at one end facing the jet section outlet. The visual recognition device is a high-speed camera, and the high-speed camera is fixedly installed inside the installation cavity.

[0015] Furthermore, a plurality of guide plates arranged in a circumferential array are provided between the outer wall of the guide mounting base and the inner wall of the jet section. Each guide plate extends along the length direction of the cylindrical shell, and each guide plate connects the guide mounting base to the jet section.

[0016] Furthermore, the flow guide mounting base has annular sharp edges at the port edge of the mounting cavity and the outlet edge of the jet section to prevent gas from adhering to the wall and escaping.

[0017] The beneficial effects of this invention compared to the prior art are: This invention employs a coaxial structure with "internal imaging and external blowing" combined with a pulse air supply system triggered by a pressure threshold, significantly optimizing monitoring results. On one hand, the pulse airflow generated by the high-pressure accumulation and instantaneous release of the sealing mechanism powerfully blows over the blades, exposing blind spots. The brief period of stable air suspension after the airflow ends is used for image capture, effectively avoiding high-frequency blade vibration and image blurring caused by continuous blowing. On the other hand, the layout of the annular air cavity surrounding the camera ensures that the center of airflow and the field of view are always highly aligned. This reduces the size of the device while ensuring that the blown-open blade area is precisely within the optimal focus range, thereby significantly improving the accuracy of identifying pests and diseases on the back of the blades and in obscured areas. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural cross-sectional view of the present invention with the elastic airbag in its natural state. Figure 3 yes Figure 2 A magnified view of the area indicated by A1 in the diagram; Figure 4 This is a three-dimensional structural cross-sectional view of the present invention when the elastic airbag is in a stretched and inhaled state. Figure 5 yes Figure 4 The enlarged view of the area indicated by A2 in the diagram; Figure 6 This is a three-dimensional structural cross-sectional view of the present invention with the elastic airbag in a compressed air-jet state; Figure 7 yes Figure 6 The enlarged view shown in A3.

[0019] The following are the labels in the diagram: 1. Cylindrical outer shell; 2. Jet section; 3. Transition neck section; 4. Compression section; 5. Guide mounting base; 6. Annular air chamber; 7. Push-pull plate; 8. Elastic airbag; 9. Intake valve; 10. Sealing head; 11. Sleeve; 12. Telescopic rod; 13. First magnetic ring; 14. Second magnetic ring; 15. Circular magnetic block; 16. Circular frame; 17. Elastic membrane; 18. Arc-shaped connecting rod; 19. Semi-circular limiting head; 20. Mounting ring; 21. Conical ring; 22. Guide ring; 23. Impact cylinder; 24. Vent hole; 25. Mounting cavity; 26. High-speed camera; 27. Guide plate; 28. Annular sharp edge. Detailed Implementation

[0020] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0021] refer to Figures 1 to 7 As shown, the present invention provides a fixed-point field pest and disease visual identification and monitoring instrument, including a cylindrical shell 1. The cylindrical shell 1 is hollow inside and has a jet section 2, a transition neck section 3 and a compression section 4 connected sequentially along its length. The cross-sections of these three sections are all circular. In order to form a fluid dynamic basis for airflow acceleration and pressurization, the inner diameter of the jet section 2 is designed to be smaller than the inner diameter of the compression section 4.

[0022] To enable real-time monitoring of pests on crop leaves in the field, a cylindrical guide mounting base 5 is coaxially fixed inside the jet section 2. The outer wall of the guide mounting base 5 and the inner wall of the jet section 2 define an annular air chamber 6 for gas flow. The function of the annular air chamber 6 is to regulate the airflow and form a uniform annular air curtain. At the same time, an installation cavity 25 is opened inward at the end of the guide mounting base 5 facing the outlet of the jet section 2. A high-speed camera 26, which serves as a visual recognition device, is fixedly installed in the installation cavity 25. The acquisition end of the high-speed camera 26 faces the outlet of the jet section 2 and is used to identify and photograph the pest situation on the back of the crop leaves in the field at the moment the airflow blows open the leaves.

[0023] Based on the main structure described above, in order to provide sufficient power to the monitoring instrument, a gas generating mechanism is installed in the compression section 4 to deliver gas with a certain pressure to the annular gas chamber 6. Specifically, the gas generating mechanism includes a circular push-pull plate 7 coaxially arranged with the compression section 4. A guide ring 22 is coaxially fixed to the outer peripheral wall of the push-pull plate 7. The outer peripheral wall of the guide ring 22 slides against the inner wall of the compression section 4, thereby enabling the push-pull plate 7 to slide and seal with the compression section 4 along the length of the cylindrical outer shell 1. In terms of driving, an impact cylinder 23 is fixedly installed inside the end of the compression section 4. The output end of the impact cylinder 23 is fixedly connected to the push-pull plate 7. The impact cylinder 23 is used to drive the push-pull plate 7 to reciprocate along the length of the cylindrical outer shell 1, and the impact cylinder 23 is configured such that its extension speed is greater than its retraction speed. In addition, several vent holes 24 are opened on the outer wall of the end of the compression section 4. The vent holes 24 are located behind the stroke of the push-pull plate 7 and are used to allow external gas to enter the compression section 4. Together with the air inlet valve 9 provided on the push-pull plate 7 for unidirectional gas supply to subsequent components, the cycle of gas intake and compression is realized.

[0024] To convert the gas into a powerful pulsed airflow, this embodiment also includes a tubular elastic airbag 8 within the compression section 4. One end of the elastic airbag 8 is sealed to the push-pull plate 7, and the other end serves as an outlet connected to the inlet of the transition neck section 3. A sealing mechanism is provided at the outlet of the elastic airbag 8 facing the transition neck section 3. The sealing mechanism includes a circular, coaxial sealing head 10 located at the outlet of the elastic airbag 8, and a connecting assembly for connecting the sealing head 10 to the push-pull plate 7.

[0025] To address the lack of structural features in the existing description, the specific implementation of the sealing head 10 and its mating structure is refined: The sealing head 10 includes a circular frame 16 and an elastic membrane 17. The circular frame 16 is coaxially positioned at the air outlet of the elastic airbag 8, and its outer wall is designed as a frustoconical shape. The elastic membrane 17 is circular, coaxially positioned within the circular frame 16, and its edge is fixedly connected to the circular frame 16. The connecting assembly includes a sleeve 11 coaxially positioned within the elastic airbag 8 and a telescopic rod 12 with one end inserted into the sleeve 11 and the other end connected to the sealing head 10. One end of the sleeve 11 is fixedly connected to the push-pull plate 7, and the other end is open and extends towards the sealing head 10. The telescopic rod 12 can slide axially within the sleeve 11. To achieve a stable connection between the sealing head 10 and the telescopic rod 12 without obstructing airflow, several arc-shaped connecting rods 18 are provided between the circular frame 16 and the telescopic rod 12 to connect the two.

[0026] In addition, in order to achieve precise positioning and sealing of the sealing head 10, an installation ring 20 is coaxially fixed on the inner wall of the connection between the jet section 2 and the transition neck section 3, and one end of the elastic airbag 8, which serves as the air outlet, is fixedly connected to the installation ring 20; the installation ring 20 is coaxially formed with a conical ring 21 that extends into the elastic airbag 8, and the diameter of the conical ring 21 decreases inward along the axial direction, thereby forming a tightly fitting sealing cone surface with the frustum-shaped outer wall of the circular frame 16. Furthermore, the sealing mechanism integrates a magnetic triggering assembly, which includes a first magnetic ring 13, a second magnetic ring 14, and a circular magnetic block 15. The first magnetic ring 13 is coaxially fixed inside the opening of the sleeve 11 facing the sealing head 10. The telescopic rod 12 passes coaxially through the first magnetic ring 13. The second magnetic ring 14 is coaxially fixed inside the end of the sleeve 11 near the push-pull plate 7. The circular magnetic block 15, as a piston head, is coaxially fixed to one end of the telescopic rod 12 located inside the sleeve 11, and the circular magnetic block 15 is located between the first magnetic ring 13 and the second magnetic ring 14.

[0027] The working process of the magnetic trigger assembly in conjunction with the elastic airbag 8 is as follows: When the circular frame 16 of the sealing head 10 blocks the air outlet of the elastic airbag 8, the circular magnetic block 15 moves away from the first magnetic ring 13 and is attracted to the second magnetic ring 14. At this time, the elastic airbag 8 is in its natural state. Subsequently, the impact cylinder 23 drives the push-pull plate 7 to pull backward, and the elastic airbag 8 deforms accordingly. The internal air compression decreases, and external air enters the elastic airbag 8 through the air inlet valve 9. At the same time, although the circular magnetic block 15 and the first magnetic ring 13 are attracted to the second magnetic ring 14, the elastic airbag 8 remains in its natural state. The second magnetic ring 14 is in an adsorption state, and the sealing head 10 tends to be pulled by the push-pull plate 7. However, at this time, the outer wall of the circular frame 16 is stopped by the conical ring 21 on the mounting ring 20, which causes the circular magnetic block 15 and the second magnetic ring 14 to be forced to separate. During this process, the telescopic rod 12 will extend outward relative to the sleeve 11, and the circular magnetic block 15 will move towards the first magnetic ring 13. After the elastic airbag 8 completes the air intake, the circular magnetic block 15 moves to adsorb with the first magnetic ring 13, and the device enters the ready-to-activate state.

[0028] Following the aforementioned air intake process, when airflow needs to be released, the impact cylinder 23 rapidly pushes the push-pull plate 7 outward. During this process, through the magnetic attraction between the circular magnetic block 15 and the first magnetic ring 13, the telescopic rod 12 and the sleeve 11 can be considered as a rigidly connected unit under the action of magnetic force. Therefore, the circular frame 16 of the sealing head 10 will be driven by the push-pull plate 7 to extend outward and separate from the conical ring 21, thereby instantly opening the air outlet of the elastic airbag 8 and releasing the pulse airflow. Subsequently, as the push-pull plate 7 continues to advance, the guide mounting seat 5 is provided with a semi-circular limiting head 19 coaxially arranged with the elastic membrane 17 at one end. Under the influence of airflow and motion inertia, the elastic membrane 17 adheres to the semi-circular limiting head 19 and deforms. This deformation... The curved surface of the semi-circular limiting head 19 transforms the direct airflow into a circumferentially diffused airflow to guide it into the annular air chamber 6. When the sealing head 10 is stopped by the semi-circular limiting head 19, as the push-pull plate 7 continues to move forward, the telescopic rod 12 retracts inward relative to the sleeve 11, causing the circular magnetic block 15 to be forced to separate from the first magnetic ring 13. Finally, the circular magnetic block 15 will move again to be attracted to the second magnetic ring 14. After that, when the impact cylinder 23 drives the push-pull plate 7 to reset and retract, since the circular magnetic block 15 has been attracted to the second magnetic ring 14, the push-pull plate 7 will pull the telescopic rod 12 and the sealing head 10 to reset through the sleeve 11 until the circular frame 16 is once again attached to the conical ring 21 to seal the air outlet of the elastic airbag 8, completing one working cycle.

[0029] Finally, to ensure airflow quality and structural stability, several guide plates 27 arranged in a circular array are provided between the outer wall of the guide mounting base 5 and the inner wall of the jet section 2. Each guide plate 27 extends along the length of the cylindrical outer shell 1 and fixes the guide mounting base 5 within the jet section 2, while also serving a flow straightening function. In addition, the port edge of the mounting cavity 25 of the guide mounting base 5 and the outlet edge of the jet section 2 are provided with annular sharp edges 28 to prevent gas from adhering to the wall and escaping. The function of the annular sharp edges 28 is to cut off the wall adhesion effect of the airflow, allowing the airflow to be sprayed straight toward the crop, thereby forming a clear observation channel enveloped by the airflow in the crop leaf area, ensuring that the image captured by the high-speed camera 26 is clear and unobstructed.

[0030] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A fixed-point field pest and disease visual recognition monitoring instrument, characterized in that, include: The cylindrical outer shell (1) is hollow inside and is connected in sequence along its length by a jet section (2), a transition neck section (3) and a compression section (4). All three have circular cross-sections, and the inner diameter of the jet section (2) is smaller than the inner diameter of the compression section (4). A flow guide mounting base (5) is provided inside the jet section (2), and an annular air cavity (6) for gas flow is formed between the outer wall of the flow guide mounting base (5) and the inner wall of the jet section (2). A visual identifier is installed in the flow guide mounting base (5), with the acquisition end of the visual identifier facing the outlet direction of the jet section (2), and is used to identify the pest situation on the leaves of crops in the field; A gas generating mechanism, located within the compression section (4), is used to supply gas to the annular gas chamber (6). The gas generating mechanism includes: The push-pull plate (7) slides and seals with the compression section (4) along the length of the cylindrical outer shell (1); An elastic airbag (8) is coaxially arranged in a tubular shape within the compression section (4). One end of the elastic airbag (8) is sealed to the push-pull plate (7), and the other end serves as an air outlet connected to the transition neck section (3). The push-pull plate (7) is provided with an air inlet valve (9) for unidirectional air supply to the elastic airbag (8). A sealing mechanism is provided at the air outlet of the elastic airbag (8) facing the transition neck section (3). The sealing mechanism is used to open or close the air outlet of the elastic airbag (8) according to the pressure inside the elastic airbag (8) to release high-pressure gas into the annular air chamber (6).

2. The fixed-point field pest and disease visual identification monitoring instrument according to claim 1, characterized in that, The blocking mechanism includes: The sealing head (10) is circular and coaxially disposed at the air outlet of the elastic airbag (8); A connector for connecting the sealing head (10) to the push-pull plate (7), the connector comprising: The sleeve (11) is coaxially disposed inside the elastic airbag (8). One end of the sleeve (11) is fixedly connected to the push-pull plate (7), and the other end extends toward the sealing head (10). The telescopic rod (12) is coaxially inserted into the sleeve (11) at one end and connected to the sealing head (10) at the other end. The outer diameter of the telescopic rod (12) is smaller than the inner diameter of the sleeve (11). The magnetic attraction kit includes a first magnetic ring (13), a second magnetic ring (14), and a circular magnetic block (15). The first magnetic ring (13) is coaxially fixed inside the opening of the sleeve (11) facing the sealing head (10), and the telescopic rod (12) coaxially passes through the first magnetic ring (13). The second magnetic ring (14) is coaxially fixed inside the end of the sleeve (11) near the push-pull plate (7). The circular magnetic block (15) serves as a piston head and is coaxially fixed to the telescopic rod (12). The circular magnetic block (15) is located between the first magnetic ring (13) and the second magnetic ring (14). When the sealing head (10) blocks the air outlet of the elastic airbag (8), the circular magnetic block (15) moves away from the first magnetic ring (13) and is attracted to the second magnetic ring (14).

3. The fixed-point field pest and disease visual identification monitoring instrument according to claim 2, characterized in that, The sealing head (10) includes a circular frame (16) and an elastic membrane (17). The circular frame (16) is coaxially disposed at the air outlet of the elastic airbag (8). The elastic membrane (17) is circular and coaxially disposed inside the circular frame (16). The outer edge of the elastic membrane (17) is fixedly connected to the circular frame (16). A plurality of arc-shaped connecting rods (18) are provided between the circular frame (16) and the telescopic rod (12) to connect the two. The flow guide mounting seat (5) has a semi-circular limiting head (19) coaxially disposed with the elastic membrane (17) at one end facing the elastic membrane (17). When the sealing mechanism is opened and the gas is released, the elastic membrane (17) moves toward the semi-circular limiting head (19) under the action of the airflow and deforms, so that the elastic membrane (17) fits against the surface of the semi-circular limiting head (19) and guides the gas into the annular air chamber (6).

4. A fixed-point field pest and disease visual identification and monitoring instrument according to claim 3, characterized in that, An installation ring (20) is coaxially fixed inside the jet section (2). One end of the elastic airbag (8) as the air outlet is fixedly connected to the installation ring (20). The installation ring (20) is coaxially formed with a conical ring (21) extending into the elastic airbag (8). The diameter of the conical ring (21) gradually decreases inward along the axial direction of the elastic airbag (8). The outer peripheral wall of the circular frame (16) forms a conical surface that can fit tightly against the inner wall of the conical ring (21).

5. A fixed-point field pest and disease visual identification monitoring instrument according to claim 1, characterized in that, The push-pull plate (7) is circular and coaxially arranged with the compression section (4). A guide ring (22) is coaxially fixed to the outer peripheral wall of the push-pull plate (7). The outer peripheral wall of the guide ring (22) is in contact with the inner wall of the compression section (4).

6. A fixed-point field pest and disease visual identification monitoring instrument according to claim 1, characterized in that, An impact cylinder (23) is fixedly installed at the end of the compression section (4). The output end of the impact cylinder (23) is fixedly connected to the push-pull plate (7). The impact cylinder (23) is used to drive the push-pull plate (7) to extend and retract along the length direction of the cylindrical shell (1), and the extension speed of the impact cylinder (23) is greater than its retraction speed.

7. A fixed-point field pest and disease visual identification monitoring instrument according to claim 1, characterized in that, The outer wall at the end of the compression section (4) is provided with a number of ventilation holes (24). Each ventilation hole (24) is located behind the push-pull plate (7) and is used to allow external gas to enter the compression section (4).

8. A fixed-point field pest and disease visual identification monitoring instrument according to claim 1, characterized in that, The flow guide mounting base (5) is cylindrical, and an installation cavity (25) is opened inward at one end facing the outlet of the jet section (2). The visual recognition device is a high-speed camera (26), and the high-speed camera (26) is fixedly installed in the installation cavity (25).

9. A fixed-point field pest and disease visual identification monitoring instrument according to claim 8, characterized in that, A plurality of guide plates (27) arranged in a circular array are provided between the outer wall of the guide mounting base (5) and the inner wall of the jet section (2). Each guide plate (27) extends along the length direction of the cylindrical shell (1), and each guide plate (27) connects the guide mounting base (5) to the jet section (2).

10. A fixed-point field pest and disease visual identification monitoring instrument according to claim 8, characterized in that, The flow guide mounting base (5) is provided with annular sharp edges (28) on the port edge of the mounting cavity (25) and the outlet edge of the jet section (2) to prevent gas from escaping along the wall.

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