A device for trapping and killing based on tomato whitefly prevention and a method thereof

Abstract

The present application relates to the technical field of agricultural pest control, in particular to a kind of based on tomato whitefly control's lure and kill device and method, including lifting frame;At least a pair of vision sensor, for obtaining the whitefly adhesion information on yellow sticky paper surface and outputting detection signal;Controller, for receiving detection signal and outputting control instruction;Several lifting parts, for receiving control instruction and driving the yellow sticky paper suspended thereon to lift;Several film winding parts, each pair of film winding part is suspended on the two sides of a lifting part, and peels off the protective outer film on the yellow sticky paper during the lifting process.The whitefly adhesion information on the surface of lure component is obtained in real time by setting lifting frame and lifting part, and the controller automatically judges the replacement opportunity according to the detection signal, realizes the intelligent judgment of yellow sticky paper replacement, improves the control efficiency;Through the cooperative matching of lifting part and film winding part, the automatic peeling of protective outer film is completed synchronously during lifting, and the manual labor intensity is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of agricultural pest control technology, specifically to a trapping device and method for controlling tomato whiteflies. Background Technology

[0002] Tomato whitefly, also known as tobacco whitefly, is one of the most important pests in tomato cultivation. It sucks plant sap with its piercing-sucking mouthparts and secretes honeydew, which can cause sooty mold. More seriously, it is a major vector for various plant viruses, such as tomato yellow leaf curl virus, posing a serious threat to the yield and quality of tomatoes.

[0003] Using the attraction of yellow to whiteflies for physical trapping is a common method for controlling tomato whiteflies. Yellow sticky traps, made by coating a yellow substrate with sticky adhesive, attract whiteflies to the traps due to their strong attraction to yellow, thus achieving pollution-free physical control. There are existing practices using yellow sticky traps for tomato whitefly control; for example, patent application CN121569711A describes a green integrated control method for summer viral diseases in greenhouse tomatoes, which uses yellow sticky traps to intercept vector insects such as tobacco whiteflies.

[0004] However, existing yellow sticky trap methods have significant shortcomings in practical application. On the one hand, 30-50 yellow sticky traps are typically needed per acre of tomato plantation. When the yellow sticky traps become covered with whiteflies, the adhesive's stickiness decreases, requiring manual replacement of each trap, which is tedious, time-consuming, and labor-intensive. On the other hand, new yellow sticky traps are usually covered with a protective film when they leave the factory, which needs to be removed manually before use, further increasing the workload.

[0005] To address the aforementioned issues, some existing technologies have attempted improvements. For example, patent application CN114304105A discloses an intelligent insect trapping device for agricultural pests, which uses a switching mechanism to switch between two sticky insect traps, reducing the time operators spend changing the traps. Patent application CN224368854U discloses an automatic sticky insect film replacement device for yellow and blue traps, which uses a motor to drive a rotating roller to unwind and rewind the sticky insect film, thus achieving automatic replacement.

[0006] Nevertheless, existing technologies still have the following shortcomings: First, there is a lack of precise real-time monitoring methods for the density of whiteflies attached to yellow sticky traps, making it impossible to accurately determine the optimal time to replace the traps; second, replacing the yellow sticky traps and removing the protective outer film are usually performed separately, resulting in low efficiency; third, existing automatic replacement devices have complex structures, making them inconvenient for large-scale deployment in the field. Therefore, it is necessary to develop a trapping device and method that can automatically monitor whitefly attachment density, automatically determine the replacement time, and simultaneously remove the protective outer film. Summary of the Invention

[0007] In order to overcome the deficiencies in the prior art, the present invention aims to provide a trapping device and method for controlling tomato whiteflies, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides a trapping device for controlling tomato whiteflies, including a lifting frame; At least one pair of vision sensors are used to acquire information about whitefly attachment on the surface of the yellow adhesive paper and output detection signals; The controller is connected to the vision sensor signal and is used to receive the detection signal and output control commands; Several lifting units are inserted side by side onto the lifting frame. The lifting units are signal-connected to the controller and are used to receive the control commands and drive the yellow adhesive paper suspended on them to rise and fall. Several film rolls, each pair of film rolls suspended on both sides of a lifting section, the film rolls being used to clamp the upper edge of the protective outer film on both sides of the yellow adhesive paper and to peel off the protective outer film during the rising of the yellow adhesive paper; The controller determines whether the raised yellow sticky paper is covered with whiteflies based on the detection signals from a pair of vision sensors, and when necessary, controls the lifting unit to drive the yellow sticky paper down, and controls the lifting unit at the next adjacent station to drive the yellow sticky paper up to perform a replacement action.

[0009] As a further improvement to this technical solution, the lifting part includes a drive rod, a transmission rod, and a micro motor. The micro motor is connected to the drive rod via a transmission gear, and the drive rod and the transmission rod are raised and lowered synchronously.

[0010] As a further improvement to this technical solution, the film winding section includes a pair of upper and lower clamping rods, a gear sleeve fitted to the ends of the pair of clamping rods, and a support ring rotatably fitted to both ends of the gear sleeve. A hanger fixed to the lifting frame is fixed above the support ring.

[0011] As a further improvement to this technical solution, the active rod has a wide-side rack structure, and the transmission rod has a narrow-side rack structure; the gear sleeve meshes with the narrow-side rack of the transmission rod, and the clamping rod passes through the gear sleeve to clamp the upper end of the protective outer film; when the active rod and the transmission rod rise and fall, the gear sleeve rolls along the narrow-side rack of the transmission rod, driving the clamping rod to rotate and roll the film.

[0012] As a further improvement to this technical solution, a pair of vision sensors are arranged opposite each other at both ends of the lifting frame and at an upward angle, for periodically capturing image information of both sides of the yellow adhesive paper and outputting it to the controller.

[0013] As a further improvement to this technical solution, the controller is preset with a whitefly attachment density threshold. The controller is used to receive image information from the vision sensor and calculate the whitefly attachment density on the surface of the yellow adhesive paper. When the whitefly attachment density reaches or exceeds the threshold, the controller sends a descent drive command to the micro motor at that station and an ascending drive command to the micro motor at the next station to automatically replace the yellow adhesive paper.

[0014] As a further improvement to this technical solution, the lifting frame includes a pair of parallel tubes and a base frame that is fitted together with the pair of tubes. Several insertion ports are inserted through the tubes to position the active rod and the transmission rod for insertion and lifting.

[0015] As a further improvement to this technical solution, several hooks are provided between the top of the active rod and the transmission rod for hanging yellow sticky paper to attract and kill whiteflies.

[0016] On the other hand, the present invention provides a method for trapping and killing tomato whiteflies, using the above-mentioned trapping and killing device for controlling tomato whiteflies, comprising the following steps: S1. Hang several sheets of yellow adhesive paper on the hooks of several lifting frames in sequence, and pass two pairs of film clamping rods through the gear sleeves on both sides of the hooks to clamp the upper edge of the protective outer film of the yellow adhesive paper. S2. The controller controls the lifting part of the first station to lift the yellow sticky paper on it to the top of the lifting frame, and uses the whitefly's attraction to yellow to attract whiteflies to attach to the surface of the yellow sticky paper. S3. During the whitefly trapping process, a pair of visual sensors are used to acquire information on the whitefly attachment density on both sides of the yellow sticky paper at the first station and output a detection signal to the controller. S4. The controller determines whether the yellow adhesive paper needs to be replaced based on the detection signal. S5. When it is determined that replacement is needed, the controller sends a descent control command to the lifting part of the first station to lower the yellow sticky paper with whiteflies attached, and sends an ascent control command to the lifting part of the second station to raise the new yellow sticky paper above the lifting frame to continue to trap and kill whiteflies.

[0017] As a further improvement to this technical solution, in step S5, during the process of the lifting part driving the yellow adhesive paper to rise, the transmission rod drives two gear sleeves to mesh and drive, thereby driving two pairs of clamping rods to roll and tear off the protective outer film on the surface of the yellow adhesive paper, thus exposing the adhesive surface of the yellow adhesive paper.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The tomato whitefly control trapping device and method uses a lifting frame and lifting section to obtain real-time information on whitefly attachment on the surface of the insect-attracting components. The controller automatically determines the replacement time based on the detection signal, realizing intelligent judgment of yellow sticky paper replacement, avoiding the trouble of frequent manual inspections, and improving control efficiency.

[0019] 2. The tomato whitefly control trapping device and method, through the coordinated operation of the lifting part and the film rolling part, automatically peels off the protective outer film during the lifting process, eliminating the manual film tearing operation and greatly reducing the intensity of manual labor.

[0020] 3. The tomato whitefly control trap and its method, by setting up multiple independent lifting parts and the controller independently controlling the operation of each lifting part, realizes multi-point independent monitoring and precise replacement, which is suitable for the whitefly control needs of large-scale tomato planting. Attached Figure Description

[0021] The accompanying drawings described herein are for illustrative purposes only. The shapes and proportions of the components in the drawings are merely schematic and intended to aid in understanding the invention. They are not intended to specifically limit the shapes and proportions of the components of the invention.

[0022] Figure 1 This is a schematic diagram of the overall assembly structure of the present invention; Figure 2 For the present invention Figure 1 The main view; Figure 3 This is an exploded view of the lifting frame of the present invention; Figure 4 This is a schematic diagram of the assembly structure of the lifting part and the film winding part of the present invention; Figure 5 This is a schematic diagram of the lifting section structure of the present invention; Figure 6 This is a schematic diagram of the film winding section structure of the present invention; Figure 7 For the present invention Figure 4 The main view; The meanings of the labels in the diagram are as follows: 100. Lifting frame; 110. Vision sensor; 120. Controller; 130. Base frame; 200. Lifting unit; 210. Drive rod; 220. Miniature motor; 221. Transmission gear; 230. Transmission rod; 240. Hook; 300. Film winding section; 310. Film clamping rod; 320. Gear sleeve; 330. Hanger; 331. Support ring. Detailed Implementation

[0023] Under the guidance of this invention, any possible variations of this invention by those skilled in the art should be considered within its scope. The directional terms used herein are based on the orientations shown in the accompanying drawings and are for ease of description and simplification; therefore, they should not be construed as limiting the invention. Furthermore, in the description of this invention, "a number" means two or more, unless otherwise explicitly specified.

[0024] Please see Figures 1-5 As shown, the present invention provides a trapping device for controlling tomato whiteflies, including a lifting frame 100; At least one pair of vision sensors 110 are used to acquire information about whitefly attachment on the surface of the yellow adhesive paper and output detection signals; The controller 120 is connected to the vision sensor 110 and is used to receive detection signals and output control commands. Several lifting units 200 are inserted side by side onto the lifting frame 100. The lifting units 200 are signal connected to the controller 120 to receive control commands and drive the yellow adhesive paper suspended on them to rise and fall. Several film rolls 300, each pair of film rolls 300 is suspended on both sides of a lifting part 200. The film rolls 300 are used to clamp the upper edge of the protective outer film on both sides of the yellow adhesive paper and peel off the protective outer film during the rising of the yellow adhesive paper. A pair of vision sensors 110 are positioned opposite each other at both ends of the lifting frame 100 and at an upward angle. They are used to periodically capture image information of both sides of the yellow sticky paper and output it to the controller 120. The controller 120 determines whether the raised yellow sticky paper is covered with whiteflies based on the detection signals of the pair of vision sensors 110. When necessary, the controller controls the lifting unit 200 to drive the yellow sticky paper down and controls the lifting unit 200 at the next adjacent station to drive the yellow sticky paper up to perform the replacement action.

[0025] Specifically, the lifting unit 200 includes a drive rod 210, a transmission rod 230, and a micro motor 220. The micro motor 220 is connected to the drive rod 210 via a transmission gear 221, and the drive rod 210 and the transmission rod 230 are raised and lowered synchronously.

[0026] The controller 120 has a preset threshold for whitefly attachment density. The controller 120 is used to receive image information from the vision sensor 110 and calculate the whitefly attachment density on the surface of the yellow adhesive paper. When the whitefly attachment density reaches or exceeds the threshold, the controller 120 sends a descent drive command to the micro motor 220 at that station and an ascending drive command to the micro motor 220 at the next station to automatically replace the yellow adhesive paper.

[0027] Furthermore, the lifting frame 100 includes a pair of parallel tubes and a base frame 130 that is fitted together with the pair of tubes. By fixing sleeves at both ends of the tubes to the columns on the top surface of the base frame 130, and opening threaded holes on the outer wall of the sleeves, and threaded bolts to tighten the columns, the lifting frame 100 is raised to a position at the same height as the tomato seedlings. Several insertion ports are inserted through the tubes to position the active rod 210 and the transmission rod 230 for matching and connecting for lifting, so that the lifting part 200 can be raised and lowered stably.

[0028] Furthermore, several hooks 240 are provided between the top of the active rod 210 and the transmission rod 230 for hanging the holes on the top edge of the yellow sticky paper to lure and kill whiteflies.

[0029] like Figures 6-7 As shown, the film winding section 300 includes a pair of upper and lower clamping rods 310, a gear sleeve 320 sleeved at the ends of the pair of clamping rods 310, and a support ring 331 rotatably sleeved at both ends of the gear sleeve 320. A hanger 330 fixed on the lifting frame 100 is fixed above the support ring 331.

[0030] The drive rod 210 has a wide-side rack structure, and the transmission rod 230 has a narrow-side rack structure. The gear sleeve 320 meshes with the narrow-side rack of the transmission rod 230, and the clamping rod 310 passes through the gear sleeve 320 to clamp the upper end of the protective outer film. When the drive rod 210 and the transmission rod 230 rise and fall, the gear sleeve 320 rolls along the narrow-side rack of the transmission rod 230, driving the clamping rod 310 to rotate and roll the film, so that the yellow adhesive paper is exposed on the adhesive surface to attract and kill whiteflies.

[0031] The method for trapping and killing tomato whiteflies based on the present invention, using the above-mentioned trapping and killing device for controlling tomato whiteflies, includes the following steps: S1. Hang several sheets of yellow adhesive paper on the hooks 240 of several lifting frames 100 in sequence, and pass two pairs of film clamping rods 310 through the gear sleeves 320 on both sides of the hooks 240 to clamp the upper edge of the protective outer film of the yellow adhesive paper. S2. The controller 120 controls the lifting part 200 of the first station to lift the yellow sticky paper on it to the top of the lifting frame 100, and uses the whitefly's attraction to yellow to attract whiteflies to attach to the surface of the yellow sticky paper. S3. During the period of attracting and killing whiteflies, a pair of vision sensors 110 are used to obtain the whitefly attachment density information on both sides of the yellow sticky paper at the first station and output the detection signal to the controller 120. S4. The controller 120 determines whether the yellow adhesive paper needs to be replaced based on the detection signal. S5. When it is determined that replacement is needed, the controller 120 sends a descent control command to the lifting section 200 of the first station to lower the yellow sticky paper with whiteflies attached, and sends an ascent control command to the lifting section 200 of the second station to raise the new yellow sticky paper above the lifting frame 100 to continue to trap and kill whiteflies. In step S5, during the process of the lifting unit 200 driving the yellow adhesive paper to rise, the transmission rod 230 drives the two gear sleeves 320 to mesh and drive, thereby driving the two pairs of clamping rods 310 to roll and tear off the protective outer film on the surface of the yellow adhesive paper, thus exposing the adhesive surface of the yellow adhesive paper.

[0032] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0033] Example 1: Overall structure of the trapping device; Please see Figures 1-7 As shown, the present invention provides a trapping device for controlling tomato whiteflies, including a lifting frame 100, a lifting part 200, and a film rolling part 300.

[0034] The lifting frame 100 serves as the supporting skeleton of the entire device, with a base frame 130 at its bottom. The base frame 130 is used to stably support the lifting frame 100 on the ground of the tomato planting aisle. Several lifting sections 200 are suspended from the lifting frame 100, each lifting section 200 for hanging a piece of yellow sticky paper. The yellow sticky paper has a yellow substrate, with sticky insect glue coated on both sides. It utilizes the whitefly's attraction to yellow to attract whiteflies to the sticky paper and make them stick. At the factory, both sides of the sticky paper are covered with a peelable dark protective outer film to prevent the sticky insect glue from becoming ineffective before use and to prevent attracting whiteflies when multiple pieces of yellow sticky paper are hung on the lifting frame 100 simultaneously. Only the yellow sticky paper with the outer film removed has a baiting and killing effect.

[0035] The lifting frame 100 is also equipped with a vision sensor 110 and a controller 120. The vision sensor 110 is positioned at an appropriate height on the lifting frame 100, and its field of view can cover both sides of the yellow adhesive paper suspended by each lifting section 200. The vision sensor 110 is used to capture image information of both sides of the yellow adhesive paper at intervals of 1 hour, 2 hours, or other time intervals set according to actual needs, and outputs the image information to the controller 120. The vision sensor 110 can be an industrial-grade high-definition camera, whose resolution should be sufficient to clearly capture individual whiteflies attached to the surface of the yellow adhesive paper.

[0036] The controller 120 is signal-connected to the vision sensor 110, and is used to receive image information output by the vision sensor 110 and perform image processing and analysis. The controller 120 is a programmable logic controller (PLC), and it is connected to the vision sensor 110 via an industrial Ethernet or I / O interface. The vision sensor 110 is an integrated intelligent vision sensor with a built-in image processing unit, capable of identifying and calculating the density of whiteflies on the surface of the acquired yellow adhesive paper, and outputting the calculation results to the controller 120 in digital signal form. The controller 120 has a preset whitefly density threshold. When the received whitefly density data reaches or exceeds the threshold, the controller 120 sends a drive command to the corresponding micro motor 220.

[0037] The controller 120 has a preset whitefly density threshold. For example, if the number of whiteflies attached to the surface of the yellow adhesive paper reaches a certain value per square centimeter, the controller 120 calculates the whitefly attachment density on the surface of each yellow adhesive paper using an image recognition algorithm. When the whitefly attachment density on the surface of a certain yellow adhesive paper reaches or exceeds the preset threshold, it indicates that the yellow adhesive paper has basically lost its adhesive ability and needs to be replaced. The controller 120 then sends a control command to the corresponding lifting unit 200.

[0038] Example 2: Specific structure and working principle of the lifting section; Please see Figures 3-5 As shown, the lifting unit 200 includes a drive rod 210, a transmission rod 230, and a micro motor 220. The micro motor 220 is fixedly mounted on the lifting frame 100 as a driving component, and its output end is provided with a transmission gear 221. The drive rod 210 is a vertically arranged rod, and its side facing the micro motor 220 has a wide-sided rack structure, which meshes with the transmission gear 221. The micro motor 220 drives the drive rod 210 to move vertically up and down through the transmission gear 221.

[0039] The transmission rod 230 is arranged parallel to the drive rod 210 and rises and falls synchronously with the drive rod 210. A hook 240 is fixed between the top of the transmission rod 230 and the drive rod 210, and yellow adhesive paper is suspended on the hook 240. The two narrow sides of the transmission rod 230 are respectively provided with rack structures, i.e., narrow side rack structures, which are used to mesh with the gear sleeve 320.

[0040] When the controller 120 determines that a certain yellow adhesive paper needs to be replaced, the controller 120 sends a reverse command to the corresponding micro motor 220. The micro motor 220 drives the drive rod 210 to descend via the transmission gear 221, simultaneously driving the transmission rod 230 to descend, thereby taking down the yellow adhesive paper hanging on the hook 240. At the same time, the controller 120 sends a forward command to the micro motor 220 corresponding to the next workstation. The micro motor 220 drives the drive rod 210 to rise via the transmission gear 221, simultaneously driving the transmission rod 230 to rise, thereby lifting the yellow adhesive paper hanging on the hook 240 upward.

[0041] Example 3: Specific structure and working principle of the film winding section; Please see Figure 4 , Figure 6 and Figure 7 As shown, the film winding section 300 includes a pair of film clamping rods 310, a gear sleeve 320, and two hangers 330. The hangers 330 are fixedly mounted on the lifting frame 100, and the lower end of the hangers 330 is provided with two support rings 331.

[0042] A pair of clamping rods 310 are inserted into the gear sleeve 320 to clamp the upper end of the protective outer film on the surface of the yellow adhesive paper. The gear sleeve 320 meshes with the narrow side rack structure of the transmission rod 230. The outer wall of the gear sleeve 320 is rotatably disposed in the support ring 331, so that the gear sleeve 320 can rotate freely about its own axis while being axially limited.

[0043] The working process of the film winding unit 300 is as follows: When the micro motor 220 drives the active rod 210 and the transmission rod 230 to rise synchronously, the rack structure of the transmission rod 230 moves upward relative to the gear sleeve 320, thereby driving the gear sleeve 320 to rotate around its own axis. The rotation of the gear sleeve 320 drives a pair of film clamping rods 310 inserted therein to rotate synchronously, and the protective outer film is wound around the film clamping rods 310, thereby realizing the automatic peeling of the protective outer film.

[0044] Here, the lifting section 200 can be designed to rise to a height less than the length of the protective outer film, with a difference of 1-1.5cm. When the transmission rod 230 rises to the set height, the clamping rod 310 rolls away the protective outer film on both sides of the yellow sticky paper, exposing more than 90% of the sticky insect adhesive surface of the yellow sticky paper, which can then play the role of attracting and killing whiteflies. The lower edge of the protective outer film remains attached to the yellow sticky paper. When the yellow sticky paper is full of whiteflies and descends for storage, the protective outer film is reattached to the surface of the yellow sticky paper, so that when taking out the yellow sticky paper full of whiteflies for transport, it will not stick to your hands or body.

[0045] Example 4: The collaborative working principle of the vision sensor and controller; The coordinated operation between the visual sensor 110 and the controller 120 is the core component for achieving automated trapping and killing. Its specific working principle is as follows: (a) Image Acquisition: The vision sensor 110 takes pictures of both sides of each yellow sticky paper at preset time intervals, such as every 2 hours. The shooting angle and focal length of the vision sensor 110 should be pre-adjusted to clearly and completely cover the effective sticky insect area of ​​each yellow sticky paper. To ensure the shooting quality, a supplementary lighting device can be set up near the vision sensor 110 to meet the shooting needs under different lighting conditions.

[0046] (ii) Image transmission and preprocessing: The vision sensor 110 transmits the captured image information to the controller 120 via wired or wireless means. After receiving the image, the controller 120 first performs preprocessing, including image denoising, color correction, contrast enhancement, and other operations, to improve the accuracy of subsequent image recognition.

[0047] (III) Whitefly Identification and Counting: The controller 120 runs an image recognition-based whitefly detection algorithm. This algorithm utilizes the physical characteristics of whiteflies, such as a body length of approximately 0.8-1.2 mm, pale yellow or white color, and wings covered with white waxy powder, to identify and locate individual whiteflies in the image. Specifically, the controller 120 segments the preprocessed image, extracts the effective area on the surface of the yellow adhesive paper, and then uses feature extraction and classifiers, such as random forests and convolutional neural networks, to detect and count individual whiteflies in the image.

[0048] (iv) Density Calculation and Threshold Judgment: The controller 120 calculates the whitefly attachment density per unit area based on the number of whiteflies identified and the effective area of ​​the yellow adhesive paper. The controller 120 has a pre-stored whitefly density threshold. For example, if the number of whiteflies attached per square centimeter is ≥5, it is considered to be full. When the calculated whitefly attachment density reaches or exceeds the threshold, the controller 120 determines that the yellow adhesive paper needs to be replaced.

[0049] (v) Control Command Output: When the controller 120 determines that a certain yellow adhesive paper needs to be replaced, the controller 120 sends a drive command to the micro motors 220 of the corresponding two station lifting sections 200. This drive command includes parameters such as rising or falling action, action speed, and action stroke. After receiving the command, the micro motors 220 execute the corresponding lifting action according to the preset parameters, and complete the automatic peeling and covering of the protective outer film through the film winding section 300 during the action. That is, when the whitefly density of a certain yellow adhesive paper reaches the threshold, the controller 120 only sends a falling control command to the micro motor 220 corresponding to that yellow adhesive paper, and sends a rising control command to the micro motor 220 of the next station, while the lifting sections 200 corresponding to other yellow adhesive papers remain unchanged.

[0050] This design allows each insect-attracting point to be replaced independently based on the whitefly infestation situation when multiple points are set up, making it particularly suitable for the uneven distribution of whiteflies in large-scale tomato cultivation.

[0051] (vi) Cyclic monitoring: After the yellow sticky paper is replaced or processed, the vision sensor 110 continues to collect images at preset time intervals, and the controller 120 continuously monitors and judges the density of whiteflies, forming a closed-loop control of "collection-identification-judgment-execution-recollection" to realize the long-term automated operation of the trapping device.

[0052] Example 5: Trapping Method; Based on the above-mentioned device, the present invention also provides a method for trapping and killing tomato whiteflies, comprising the following steps: S1. The yellow adhesive paper covered with a protective outer film is suspended from the transmission rods 230 of each lifting unit 200 via hooks 240, and the lifting frame 100 is fixed in the tomato planting aisle via the base frame 130. Taking advantage of the whitefly's attraction to yellow, adult whiteflies are attracted by the yellow spectrum of the yellow adhesive paper, fly towards the yellow adhesive paper, and are adhered to by the sticky insect glue on its surface.

[0053] S2. The vision sensor 110 takes pictures of both sides of each yellow sticky paper at a preset time interval, such as every 2 hours, to obtain image information of whiteflies attached to the surface of the yellow sticky paper, and outputs the image information to the controller 120.

[0054] S3. After receiving the image information, the controller 120 determines whether the whitefly attachment density on the surface of each yellow adhesive paper reaches or exceeds the preset threshold through steps such as image preprocessing, whitefly identification and counting, and density calculation.

[0055] S4. When the density of whiteflies attached to a certain yellow sticky paper reaches or exceeds the threshold, the controller 120 sends a reverse command to the micro motor 220 corresponding to that yellow sticky paper to lower and collect it. At the same time, the controller 120 sends a forward command to the micro motor 220 corresponding to the yellow sticky paper at the next station. The micro motor 220 drives the drive rod 210 to rise through the transmission gear 221, which in turn drives the transmission rod 230 to rise, and the yellow sticky paper is lifted accordingly. During this process, the gear sleeve 320 rolls along the rack of the transmission rod 230, driving the clamping rod 310 to rotate, wrapping and peeling off the protective outer film on both sides of the yellow sticky paper, exposing a large area of ​​the sticky insect adhesive surface of the yellow sticky paper.

[0056] The above method automates the entire process from monitoring whitefly density and determining replacement timing to automatic peeling of the protective outer membrane, significantly reducing the labor intensity of manual inspections and yellow sticky trap replacements, and improving the efficiency and accuracy of tomato whitefly control.

[0057] It should be noted that the terms "fixed connection" and "fixed installation" in this invention should be interpreted broadly, and can be achieved using conventional fixing methods such as bolt connection, welding, bonding, or integral molding that are compatible with each other. The specific connection relationship between the components is based on the ability to achieve the function of this invention. The above are existing technologies and will not be elaborated further here. The above embodiments are only for illustrating the technical concept and features of this invention, and their purpose is to enable those skilled in the art to understand the content of this invention and implement it accordingly. They should not be used to limit the scope of protection of this invention. All equivalent changes or modifications made according to the spirit and essence of this invention should be covered within the scope of protection of this invention.

Claims

1. A trapping device for controlling tomato whiteflies, characterized in that, Including lifting frames; At least one pair of vision sensors are used to acquire information about whitefly attachment on the surface of the yellow adhesive paper and output detection signals; The controller is connected to the vision sensor signal and is used to receive the detection signal and output control commands; Several lifting units are inserted side by side onto the lifting frame. The lifting units are signal-connected to the controller and are used to receive the control commands and drive the yellow adhesive paper suspended on them to rise and fall. Several film rolls, each pair of film rolls suspended on both sides of a lifting section, the film rolls being used to clamp the upper edge of the protective outer film on both sides of the yellow adhesive paper and to peel off the protective outer film during the rising of the yellow adhesive paper; The controller determines whether the raised yellow sticky paper is covered with whiteflies based on the detection signals from a pair of vision sensors, and when necessary, controls the lifting unit to drive the yellow sticky paper down, and controls the lifting unit at the next adjacent station to drive the yellow sticky paper up to perform a replacement action.

2. The trapping device for controlling tomato whiteflies according to claim 1, characterized in that: The lifting unit includes a drive rod, a transmission rod, and a micro motor. The micro motor is connected to the drive rod via a transmission gear, and the drive rod and the transmission rod are raised and lowered synchronously.

3. The trapping device for controlling tomato whiteflies according to claim 2, characterized in that: The film winding section includes a pair of upper and lower clamping rods, a gear sleeve fitted at the ends of the pair of clamping rods, and a support ring rotatably fitted at both ends of the gear sleeve. A hanger fixed to the lifting frame is fixed above the support ring.

4. The trapping device for controlling tomato whiteflies according to claim 3, characterized in that: The drive rod has a wide-side rack structure, and the transmission rod has a narrow-side rack structure; the gear sleeve meshes with the narrow-side rack of the transmission rod, and the clamping rod passes through the gear sleeve to clamp the upper end of the protective outer film; when the drive rod and the transmission rod move up and down, the gear sleeve rolls along the narrow-side rack of the transmission rod, driving the clamping rod to rotate and roll the film.

5. The trapping device for controlling tomato whiteflies according to claim 4, characterized in that: A pair of vision sensors are positioned opposite each other at both ends of the lifting frame and at an upward angle, used to periodically capture image information of both sides of the yellow adhesive paper and output it to the controller.

6. The trapping device for controlling tomato whiteflies according to claim 5, characterized in that: The controller has a preset threshold for whitefly attachment density. The controller is used to receive image information from the vision sensor and calculate the whitefly attachment density on the surface of the yellow adhesive paper. When the whitefly attachment density reaches or exceeds the threshold, the controller sends a descent drive command to the micro motor at that station and an ascending drive command to the micro motor at the next station to automatically replace the yellow adhesive paper.

7. The trapping device for controlling tomato whiteflies according to claim 6, characterized in that: The lifting frame includes a pair of parallel tubes and a base frame fitted together with the pair of tubes. Several insertion holes run through the tubes to position the drive rod and transmission rod for insertion and lifting.

8. The trapping device for controlling tomato whiteflies according to claim 7, characterized in that: Several hooks are provided between the top of the active rod and the transmission rod for hanging yellow sticky paper to attract and kill whiteflies.

9. A method for trapping and killing tomato whiteflies, using the trapping and killing device for controlling tomato whiteflies as described in claim 8, characterized in that, Includes the following steps: S1. Hang several sheets of yellow adhesive paper on the hooks of several lifting frames in sequence, and pass two pairs of film clamping rods through the gear sleeves on both sides of the hooks to clamp the upper edge of the protective outer film of the yellow adhesive paper. S2. The controller controls the lifting part of the first station to lift the yellow sticky paper on it to the top of the lifting frame, and uses the whitefly's attraction to yellow to attract whiteflies to attach to the surface of the yellow sticky paper. S3. During the whitefly trapping process, a pair of visual sensors are used to acquire information on the whitefly attachment density on both sides of the yellow sticky paper at the first station and output a detection signal to the controller. S4. The controller determines whether the yellow adhesive paper needs to be replaced based on the detection signal; S5. When it is determined that replacement is needed, the controller sends a descent control command to the lifting part of the first station to lower the yellow sticky paper with whiteflies attached, and sends an ascent control command to the lifting part of the second station to raise the new yellow sticky paper above the lifting frame to continue to trap and kill whiteflies.

10. The method for trapping and killing tomato whiteflies according to claim 9, characterized in that: In step S5, during the process of the lifting part driving the yellow adhesive paper to rise, the transmission rod drives two gear sleeves to mesh and drive, thereby driving two pairs of clamping rods to roll and tear off the protective outer film on the surface of the yellow adhesive paper, thus exposing the adhesive side of the yellow adhesive paper.

Images