A grain store pest trapping device

Abstract

This invention relates to the field of pest control equipment technology, specifically a grain storage pest trapping device, comprising a top plate; a lampshade is fixedly connected to the bottom of the outer wall of the top plate via a connecting block one; a bottom plate is fixedly connected to the bottom of the outer wall of the lampshade via a connecting block two; a light source is provided inside the lampshade; and an outer shell is provided on the outer wall of the top plate. This invention uses a driving device to rotate a reciprocating shaft, which in turn drives a reciprocating rod to rotate via a sprocket and chain, causing the reciprocating plate to move up and down. When the reciprocating plate moves down, it cooperates with an annular plate to push the pests downwards until the annular plate abuts the bottom plate. At this point, the bottom plate, the annular plate, the reciprocating plate, and the connecting block two form a sealed heating space, where a heating and pest-killing device on the bottom plate heats and kills the pests. Similarly, when the reciprocating plate moves up, it also forms a sealed heating space, where the heating and pest-killing device kills the pests, ensuring that the attracted pests enter the killing area and meeting the needs of effective pest control in grain storage.

Description

Technical Field

[0001] This invention relates to the field of pest control equipment technology, specifically a grain storage pest trapping device. Background Technology

[0002] Because pests in grain warehouses directly eat the grain grains, resulting in reduced weight and lower quality, and because their excrement, corpses, and metabolic products can contaminate the grain, causing off-odors, mold, and lower commodity value, and even food safety issues, grain warehouses need pest trapping equipment to kill pests and protect grain safety. Pest trapping equipment attracts pests with light sources, moves them to a designated location, and then kills them through methods such as pesticide boards, electric grids, heating, or drowning.

[0003] In existing technologies, pest trapping equipment in grain warehouses typically relies on pests being attracted by a light source and then crawling or flying into the trap on their own. The traps are then killed by methods such as bottom-mounted pesticide plates, electric grids, heating, or drowning. This approach is overly dependent on the autonomous behavior of the pests and has limited effectiveness for many pests that do not directly fly towards the light or remain at the edge after entering the trap. As a result, many pests cannot be killed, and the equipment fails to meet the needs of effective pest control in grain warehouses. Summary of the Invention

[0004] The purpose of this invention is to address the problem that traditional grain warehouse pest trapping devices rely on pests being attracted by a light source and crawling or flying into the trap, where they are killed by bottom-mounted pesticide plates, electric grids, heating, or drowning. This approach is overly dependent on the autonomous behavior of pests and has limited effectiveness for many pests that do not directly approach the light or remain at the edge after entering the trap, resulting in many pests remaining unkilled and failing to meet the needs of effective pest control in grain warehouses. Therefore, this invention proposes a grain warehouse pest trapping device.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A grain storage pest trapping device includes a top plate; a lampshade is fixedly connected to the bottom of the outer wall of the top plate via a connecting block one; a bottom plate is fixedly connected to the bottom of the outer wall of the lampshade via a connecting block two; a light source is provided inside the lampshade; an outer shell is provided on the outer wall of the top plate; a set of insect inlet holes is provided on the outer wall of the outer shell; a driving device is fixedly connected to the top of the outer wall of the top plate via a fixing plate; a reciprocating shaft is provided at the output end of the driving device; a reciprocating rod is rotatably connected to the top of the outer wall of the top plate, and the bottom of the outer wall of the reciprocating rod extends into the outer shell; a reciprocating plate is provided on the outer wall of the reciprocating rod, and the outer wall of the reciprocating plate contacts the inner wall of the outer shell, and the inner wall contacts the lampshade; heating insect-killing devices are provided at the bottom of the outer wall of the top plate and the top of the outer wall of the bottom plate; annular plates are fixedly connected to the top and bottom of the outer wall of the reciprocating plate; sprockets are fixedly connected to the outer walls of the reciprocating shaft and the reciprocating rod, and a pair of sprockets are connected by a chain.

[0007] In a preferred embodiment of the present invention, the inner sidewall of the outer shell is rotatably connected to the outer sidewalls of the top plate and the bottom plate; a ring rack is fixedly connected to the top of the outer wall of the outer shell; a gear is fixedly connected to the outer sidewall of the reciprocating rod; the gear and the ring rack mesh with each other.

[0008] In a preferred embodiment of the present invention, the bottom end of the outer wall of the reciprocating shaft extends into the lampshade; a circular plate is provided on the outer wall of the reciprocating shaft; the outer wall of the light source is fixed to the inner wall of the circular plate; a circular rod is fixed to the bottom end of the outer wall of the connecting block one, and the circular rod passes through the circular plate; the circular rod and the circular plate are slidably connected.

[0009] In a preferred embodiment of the present invention, the circular plate includes a circular block and an annular block; the outer sidewall of the circular block is rotatably connected to the inner sidewall of the annular block; the circular block and the reciprocating shaft are reciprocatingly connected; a second gear is slidably connected to the outer sidewall of the reciprocating shaft, and the bottom end of the outer sidewall of the second gear is rotatably connected to the top end of the outer sidewall of the circular block; a third gear is rotatably connected to the top end of the outer sidewall of the circular block, and the third gear meshes with the second gear; an annular rack is fixedly connected to the outer sidewall of the annular block, and the annular rack meshes with the third gear; the light source is fixedly connected to the annular block.

[0010] In a preferred embodiment of the present invention, the control system of the drive device performs cavity environment modeling based on dynamic flow field simulation, specifically including the following steps:

[0011] S101: Aerodynamic parameters are collected in real time by an array of pressure sensors installed on the inner wall of the housing;

[0012] S102: Combining the instantaneous displacement and velocity components of the reciprocating plate driven by the reciprocating rod, a dynamic flow field model is constructed within the trapping cavity: in, The equivalent fluid velocity generated by pest disturbance. For internal pressure, It is the viscous stress tensor.

[0013] In a preferred embodiment of the present invention, the control system extracts pest activity features based on the dynamic flow field model, and the specific steps include:

[0014] S201: Extract the frequency and amplitude characteristics of micro-pressure fluctuations caused by insects flapping their wings or crawling in the dynamic flow field model;

[0015] S202: Calculate the mobilization probability of pests at the inlet hole. To assess the positive effect of current airflow fluctuations on the frequency of pest entry;

[0016] S203: Combine the micro-pressure fluctuation characteristics with the mobilization probability The data is then fused to generate a multidimensional feature vector set that reflects the real-time activity of pests.

[0017] In a preferred embodiment of the present invention, the control system classifies the pest scale using a support vector machine and feeds it back to the drive device. Specific steps include:

[0018] S301: Input the multidimensional feature vector set into a pre-trained support vector machine classification model to identify the size level of the pest group currently entering the shell;

[0019] S302: Based on the identified scale level, calculate the optimal ratio of required extermination energy consumption and output a speed adjustment command for the reciprocating shaft;

[0020] S303: Dynamically adjust the output frequency of the drive device so that the reciprocating cycle of the reciprocating plate is phase-locked with the peak period of pest entry, so as to maximize the killing efficiency of the sealed heating space.

[0021] In a preferred embodiment of the present invention, the motion path of the light source is digitally defined using a spatiotemporal trajectory mapping algorithm, and the specific steps include:

[0022] S401: Obtain the combined motion parameters of the light source as it moves up and down with the circular plate and as it rotates with the annular block;

[0023] S402: Based on the driving amount of the reciprocating shaft pair gear two, calculate the absolute coordinates of the light source in the three-dimensional space of the lampshade in real time, and establish a time series distribution map of the light source position.

[0024] In a preferred embodiment of the present invention, the motion trajectory of the light source is asymmetrically optimized using a variational path prediction algorithm, and the specific steps include:

[0025] S501: Using a variational path prediction algorithm, with the objective function of minimizing the trajectory deviation caused by the phototaxis of pests, the expected approach path of pests around the trapping device is calculated:

[0026]

[0027] in, To predict the flight path of pests, the optimal light-induced vector field is obtained by solving the Euler-Lagrange equations.

[0028] S502: Based on the optimal light-induced vector field, dynamically adjust the instantaneous transmission ratio between the second gear and the reciprocating shaft;

[0029] S503: By changing the ratio of the rotational angular velocity to the lifting speed of the light source within the lampshade, an asymmetrical dynamic light and shadow effect is generated to break the inertia of pests' avoidance behavior towards fixed-frequency light sources.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] 1. The reciprocating shaft is driven to rotate by a drive device. The reciprocating shaft drives the reciprocating rod to rotate via a sprocket and chain. Because the reciprocating rod and the reciprocating plate are reciprocatingly connected, the reciprocating plate moves up and down under the rotational force of the reciprocating rod. When the reciprocating plate drives the bottom ring plate to move downward, the reciprocating plate, together with the ring plate, pushes the pests downward until the ring plate touches the bottom plate. At this time, the bottom plate, the ring plate, the reciprocating plate, and the connecting block form a sealed heating space. At this time, the heating and insecticidal device on the bottom plate heats and kills the pests. Similarly, when the reciprocating plate moves upward, it works with the bottom plate, the ring plate, the reciprocating plate, and the connecting block to form a sealed heating space, and the heating and insecticidal device kills the pests. This allows the present invention to actively push the pests to the designated killing area for killing, thereby improving the pest control effect of the present invention and meeting the needs of effective pest control in grain warehouses. Furthermore, by setting the killing area at the top and bottom, and with the mechanical push, a three-dimensional space coverage is achieved, which has a more comprehensive killing effect on pests with different activity habits, such as those that like to crawl or fly.

[0032] 2. The reciprocating rod drives gear one to rotate. Since gear one meshes with the ring rack one, gear one drives the ring rack one to rotate, which in turn drives the outer shell to rotate. This causes the insect inlet hole on the outer shell to continuously and slowly change its position, thereby constantly changing the position of the irradiated light and increasing the coverage area of ​​the light. This further expands the attraction range for pests and increases the probability of pests entering the equipment. At the same time, the rotating design of the outer shell can effectively prevent pests from developing avoidance behavior due to prolonged adaptation to a fixed light source position. This ensures that the application maintains a high-efficiency trapping effect at different times. In addition, combined with the active extermination method of the reciprocating plate pushing pests to the extermination area, a closed-loop system of trapping and extermination is formed, which significantly improves the overall efficiency of pest control in grain warehouses. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a structural diagram of the main body of the present invention;

[0035] Figure 2 This is a diagram showing the internal structure of the outer shell of the main body of the present invention;

[0036] Figure 3 This is an exploded view of the lampshade and circular plate of the present invention;

[0037] Figure 4 This is a structural diagram of the circular plate, reciprocating shaft, and lamp source of the present invention;

[0038] Figure 5 This is a structural diagram of the circular block and the annular block of the present invention;

[0039] In the diagram: 1. Top plate; 2. Lampshade; 3. Bottom plate; 4. Light source; 5. Outer shell; 6. Insect inlet hole; 7. Drive device; 8. Reciprocating shaft; 9. Reciprocating rod; 10. Reciprocating plate; 11. Heating insect-killing device; 12. Ring plate; 13. Sprocket; 14. Chain; 15. Ring rack one; 16. Gear one; 17. Circular plate; 18. Circular rod; 171. Circular block; 172. Ring block; 19. Gear two; 20. Gear three; 21. Ring rack three. Detailed Implementation

[0040] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figures 1-5As shown, a grain storage pest trapping device includes a top plate 1; a lampshade 2 is fixedly connected to the bottom of the outer wall of the top plate 1 via a connecting block 1; a base plate 3 is fixedly connected to the bottom of the outer wall of the lampshade 2 via a connecting block 2; a light source 4 is provided inside the lampshade 2; an outer shell 5 is provided on the outer wall of the top plate 1; a set of insect inlet holes 6 are provided on the outer wall of the outer shell 5; a driving device 7 is fixedly connected to the top of the outer wall of the top plate 1 via a fixing plate; a reciprocating shaft 8 is provided at the output end of the driving device 7; a reciprocating rod 9 is rotatably connected to the top of the outer wall of the top plate 1, and the bottom of the outer wall of the reciprocating rod 9 extends into the outer shell 5; a reciprocating plate 10 is provided on the outer wall of the reciprocating rod 9, and the reciprocating... The outer side wall of plate 10 is in contact with the inner side wall of outer shell 5, and the inner side wall is in contact with lampshade 2; heating insect-killing devices 11 are provided at the bottom of the outer wall of top plate 1 and the top of the outer wall of bottom plate 3; annular plates 12 are fixedly connected to the top and bottom of the outer wall of reciprocating plate 10; sprockets 13 are fixedly connected to the outer side walls of reciprocating shaft 8 and reciprocating rod 9, and a pair of sprockets 13 are connected by a chain 14. When the light source emits light, the light shines through the insect inlet hole 6 on lampshade 2 and outer shell 5 to attract pests. When the pests are attracted by the light and enter outer shell 5 through insect inlet hole 6, the drive device 7 drives the reciprocating shaft 8 to rotate. The reciprocating rod 9 is driven to rotate by the sprocket 13 and chain 14. Since the reciprocating rod 9 and the reciprocating plate 10 are reciprocatingly connected, and the reciprocating plate 10 is limited by the outer casing 5, the reciprocating plate 10 moves up and down under the rotational force of the reciprocating rod 9. When the reciprocating plate 10 drives the bottom annular plate 12 to move downwards, the reciprocating plate 10, in conjunction with the annular plate 12, pushes the pests downwards until the annular plate 12 abuts against the bottom plate 3. At this time, the bottom plate 3, the annular plate 12, the reciprocating plate 10, and the connecting block 2 form a sealed heating space. The heating and insecticidal device 11 on the bottom plate 3 then heats and kills the pests. Similarly, the reciprocating rod 9 moves up and down under the rotational force of the reciprocating rod 9. When the composite plate 10 moves upward, it works with the base plate 3, the annular plate 12, the reciprocating plate 10, and the connecting block to form a sealed heating space. The heating and insecticidal device 11 then kills pests, allowing the present application to actively push pests to the designated killing area for extermination. This ensures that the attracted pests enter the killing area, thereby improving the pest control effect of the present application and meeting the needs of effective pest control in grain warehouses. Furthermore, by setting the killing area at the top and bottom, and with the help of mechanical propulsion, a three-dimensional space coverage is achieved, which has a more comprehensive killing effect on pests with different activity habits, such as those that prefer to crawl or fly.

[0042] The bottom end of the outer wall of the reciprocating shaft 8 extends into the lampshade 2; a circular plate 17 is provided on the outer wall of the reciprocating shaft 8; the outer wall of the light source 4 is fixed to the inner wall of the circular plate 17; a circular rod 18 is fixed to the bottom end of the outer wall of the connecting block 1, and the circular rod 18 passes through the circular plate 17; the circular rod 18 and the circular plate 17 are slidably connected. When the driving device 7 drives the reciprocating shaft 8 to rotate, because the reciprocating shaft 8 and the circular plate 17 are reciprocatingly connected, the rotation of the reciprocating shaft 8 causes the circular plate 17 to move up and down reciprocally. The up and down movement of the circular plate 17 causes the light source 4 to move up and down inside the lampshade 2. The up and down movement of the light source 4 inside the lampshade 2 causes the position of the light emitted through the insect inlet 6 on the lampshade 2 and the outer shell 5 to change continuously, making the dynamic The light source 4 attracts pests from different locations more effectively, and the movement of the light source 4 causes the light intensity of the insect entry holes 6 at different locations to change continuously, making it easier to attract pests from various locations. This, combined with the rotation of the outer shell 5 and the active killing mechanism of the reciprocating plate 10 that pushes the pests, forms a multi-dimensional and all-round pest trapping and killing system. It not only overcomes the limitations of traditional equipment that relies on the autonomous behavior of pests, but also ensures that once pests are attracted into the equipment, they are difficult to escape through physical and mechanical means. The up and down movement of the light source 4 also increases the adaptability of the equipment to the environment. Whether in a well-lit or dimly lit environment, the best trapping effect can be achieved by adjusting the position of the light source 4.

[0043] The inner wall of the outer shell 5 is rotatably connected to the outer walls of the top plate 1 and the bottom plate 3; a ring rack 15 is fixedly connected to the top of the outer wall of the outer shell 5; a gear 16 is fixedly connected to the outer wall of the reciprocating rod 9; the gear 16 meshes with the ring rack 15, and the reciprocating rod 9 drives the gear 16 to rotate. Because the gear 16 meshes with the ring rack 15, the gear 16 drives the ring rack 15 to rotate, which in turn drives the outer shell 5 to rotate. This causes the insect inlet hole 6 on the outer shell 5 to continuously and slowly change position, thereby continuously changing... The position of the irradiated light increases the coverage area, further expanding the attraction range for pests and increasing the probability of pests entering the device. At the same time, the rotating design of the outer shell 5 can effectively prevent pests from exhibiting avoidance behavior due to prolonged adaptation to the fixed position of the light source 4, ensuring that this application maintains a highly efficient trapping effect at different times. In addition, combined with the active extermination method of the reciprocating plate 10 pushing pests to the extermination area, a closed-loop system of trapping and extermination is formed, significantly improving the overall efficiency of grain warehouse pest control.

[0044] The circular plate 17 includes a circular block 171 and an annular block 172; the outer side wall of the circular block 171 is rotatably connected to the inner side wall of the annular block 172; the circular block 171 and the reciprocating shaft 8 are reciprocatingly connected; a gear 2 19 is slidably connected to the outer side wall of the reciprocating shaft 8, and the bottom end of the outer wall of the gear 2 19 is rotatably connected to the top end of the outer wall of the circular block 171; a gear 3 20 is rotatably connected to the top end of the outer wall of the circular block 171, and the gear 3 20 meshes with the gear 2 19; the outer side wall of the annular block 172 is fixedly connected to... There is a ring rack 21, which meshes with a gear 20. The light source 4 is fixedly connected to the ring block 172. Through the circular plate 17, which includes the circular block 171 and the ring block 172, the reciprocating shaft 8 drives the circular block 171 and the ring block 172 to reciprocate up and down. Because the reciprocating shaft 8 is slidably connected to the gear 19, it drives the gear 19 to rotate. Furthermore, because the gear 19 is rotatably connected to the circular block 171, it moves along with the circular block 171, causing the gear to rotate. As gear 19 moves and rotates, it meshes with gear 20, causing gear 19 to drive gear 20 to rotate. Gear 20 meshes with ring rack 21, causing ring rack 21 to rotate, which in turn drives ring block 172 and light source 4 to rotate. As light source 4 moves up and down, and ring block 172 rotates, light source 4 changes its height and position within lampshade 2. This dynamic change in the position of light source 4 further enhances the light scattering effect, resulting in a wider and more uniform illumination range, covering more areas and attracting more pests from different directions. The multi-directional and multi-angle light changes break the limitations of the traditional fixed light source 4 mode in attracting pests, effectively attracting pests that are originally in light blind spots or insensitive to fixed light source 4. The combination of rotation and up and down movement of light source 4 forms a complex and varied light pattern, increasing the stimulation of the pest's visual system and increasing the probability of pests being attracted into the device.

[0045] In use, when the lamp source emits light, the light shines through the insect inlet 6 on the lampshade 2 and the outer shell 5, attracting pests. When the pests are attracted by the light and enter the outer shell 5 through the insect inlet 6, the drive device 7 drives the reciprocating shaft 8 to rotate. The reciprocating shaft 8 drives the reciprocating rod 9 to rotate through the sprocket 13 and the chain 14. Because the reciprocating rod 9 and the reciprocating plate 10 are reciprocatingly connected, and the reciprocating plate 10 is limited by the outer shell 5, the reciprocating plate 10 moves up and down under the rotational force of the reciprocating rod 9. When the reciprocating plate 10 drives the bottom annular plate 12 to move downward, the reciprocating plate 10 cooperates with the annular plate 12 to push the pests downward until the annular plate 12 abuts against the bottom plate 3. At this time, the bottom plate 3, the annular plate 12, the reciprocating plate 10, and the connecting block 2 are all in motion. A sealed heating space is formed. At this time, the heating and insecticidal device 11 on the bottom plate 3 heats and kills insects. Similarly, when the reciprocating plate 10 moves upward, it works with the bottom plate 3, the ring plate 12, the reciprocating plate 10 and the connecting block to form a sealed heating space to kill insects through the heating and insecticidal device 11. This allows the present application to actively push pests to the designated killing area for killing, ensuring that the attracted pests enter the killing area, thereby improving the pest control effect of the present application and meeting the needs of effective pest control in grain warehouses. Moreover, by setting the killing area at the top and bottom, and with the help of mechanical propulsion, a three-dimensional space coverage is achieved, which has a more comprehensive killing effect on pests with different activity habits, such as those that like to crawl or fly.

[0046] The reciprocating rod 9 drives the gear 16 to rotate. Since the gear 16 meshes with the ring rack 15, the gear 16 drives the ring rack 15 to rotate, which in turn drives the outer shell 5 to rotate. This causes the insect inlet 6 on the outer shell 5 to continuously and slowly change its position, thereby constantly changing the position of the irradiated light and increasing the coverage area of ​​the light. This further expands the attraction range for pests and increases the probability of pests entering the equipment. At the same time, the rotating design of the outer shell 5 can effectively prevent pests from developing avoidance behavior due to prolonged adaptation to the fixed position of the light source 4. This ensures that the application maintains a high-efficiency trapping effect at different times. In addition, combined with the active extermination method of the reciprocating plate 10 pushing pests to the extermination area, a closed-loop system of trapping and extermination is formed, which significantly improves the overall efficiency of grain warehouse pest control.

[0047] When the drive device 7 drives the reciprocating shaft 8 to rotate, the reciprocating shaft 8 and the circular plate 17 are reciprocatingly connected. The rotation of the reciprocating shaft 8 causes the circular plate 17 to move up and down. The up and down movement of the circular plate 17 causes the light source 4 to move up and down inside the lampshade 2. The up and down movement of the light source 4 inside the lampshade 2 causes the position of the light emitted through the insect inlet 6 on the lampshade 2 and the outer shell 5 to change continuously. This allows the dynamic light to better attract pests in different positions. In addition, the movement of the light source 4 causes the light intensity of the insect inlet 6 in different positions to change continuously, making it easier to attract pests in various positions. This, together with the rotation of the outer shell 5 and the active killing mechanism of the reciprocating plate 10 pushing the pests, forms a multi-dimensional and all-round pest trapping and killing system. It not only overcomes the limitations of traditional equipment that relies on the autonomous behavior of pests, but also ensures that once pests are attracted into the equipment, they are difficult to escape through physical and mechanical means. The up and down movement of the light source 4 also increases the adaptability of the equipment to the environment. Whether in a well-lit or dimly lit environment, the best trapping effect can be achieved by adjusting the position of the light source 4.

[0048] The circular plate 17 includes a circular block 171 and an annular block 172. When the reciprocating shaft 8 drives the circular block 171 and the annular block 172 to reciprocate up and down, the reciprocating shaft 8 is slidably connected to the second gear 19, causing the second gear 19 to rotate. Since the second gear 19 is rotatably connected to the circular block 171, the second gear 19 moves along with the circular block 171, rotating as it moves. Because the second gear 19 meshes with the third gear 20, it drives the third gear 20 to rotate. Since the third gear 20 meshes with the third annular rack 21, it drives the third annular rack 21 to rotate, thereby driving the annular block 172. As the light source 4 rotates, it moves up and down. Simultaneously, the ring block 172 rotates, changing the height of the light source 4 and its position within the lampshade 2. This dynamic change in the position of the light source 4 further enhances the light scattering effect, resulting in a wider and more uniform illumination range. This allows the light source to cover more areas and attract more pests from different directions. Furthermore, the multi-directional and multi-angle light changes break the limitations of the traditional fixed light source 4 mode in attracting pests. This effectively attracts pests that were originally in light blind spots or were insensitive to the fixed light source 4. The combination of the rotation and up-and-down movement of the light source 4 creates a complex and varied light pattern.

[0049] The control system of drive device 7 performs cavity environment modeling based on dynamic flow field simulation. The specific steps include:

[0050] S101: Real-time aerodynamic parameters are collected by a pressure sensor array installed on the inner wall of the outer casing 5;

[0051] In step S101, the specific implementation method of collecting aerodynamic parameters in real time by means of a pressure sensor array deployed on the inner wall of the outer shell 5 is as follows: taking the geometric center of the bottom of the outer shell 5 as the origin. The direction of the central axis of the outer casing 5 is set as The polar axis starting direction is selected as the ray direction pointing towards the geometric center of the insect entry hole 6 on the inner wall of the outer shell 5, in the positive direction of the axis. On the inner wall surface of the outer shell 5, a structure consisting of high and azimuth The defined local coordinate system of the cylindrical surface, on the inner wall of the outer shell 5, along... axial direction at equal intervals Division A ring-shaped sampling layer, simultaneously arranged at equal angles along the circumference within the ring-shaped sampling layer. Division Divided into equal arc segments, forming on the inner wall surface Each measuring point has a pressure sensor embedded at it, forming a pressure sensor array. The pressure sensor is the core hardware for sensing the weak flow field within the trapping cavity. Its specific structure and working principle are detailed as follows: The pressure sensor consists of a micro-sensing component, a signal conditioning integrated circuit, and a packaging shell. The micro-sensing component uses high-purity single-crystal silicon as the substrate material. A flexible silicon-based diaphragm with a sub-micron thickness is formed in its geometric center region through microlithography and bulk silicon processing. This diaphragm serves as the first elastic element for sensing pressure. In the strain-maximizing region of the flexible silicon-based diaphragm, four sets of piezoresistive strain gauges with equal resistance are integrated through ion implantation. These gauges are electrically connected to form a completely symmetrical Wheatstone bridge structure, used to convert mechanical stress into an electrical signal. When an insect enters through the inlet hole 6 on the shell 5 or disturbs the air outside the lampshade 2, the flexible silicon-based diaphragm undergoes a slight mechanical deformation under the instantaneous static pressure within the trapping cavity, causing the Wheatstone bridge to... The equilibrium state is disrupted, resulting in a differential millivolt-level raw voltage signal that is linearly proportional to the pressure disturbance. The signal conditioning integrated circuit and the micro-sensing component are packaged on the same base, which integrates an ultra-low noise gain amplifier, a two-stage low-pass filter, and a high-resolution analog-to-digital converter (ADC) unit. It is responsible for real-time zero-point drift compensation, linearization correction, and high-frequency noise removal of the raw voltage signal, outputting a digital pressure signal with a high signal-to-noise ratio. This ensures that the sensor can capture pressure fluctuations as low as 0.01 Pa. The encapsulation shell is made of wear-resistant industrial-grade polymer material, with a pressure-conducting micropore at its top that communicates with the external air field. The micropore is filled with a breathable but waterproof nano-scale waterproof and dustproof membrane to prevent grain particles or fine dust from entering the sensor and damaging the sensitive components. This ensures the long-term stability and high-frequency response characteristics of the sensor in complex grain storage environments. A unique spatial topology code is assigned to each sensor in the pressure sensor array. in Indicates that the sensor is in Layer number along the axial direction, The value is arrive , This indicates the sector number of the sensor in the circumferential direction. The value is arrive The spatial topology code is acquired in real time through a multi-channel high-speed synchronous acquisition board at a sampling frequency of no less than 1000Hz. Corresponding instantaneous static pressure value at the node The multi-channel high-speed synchronous acquisition board, in the form of a flexible circuit board or a small modular PCB assembly, is mounted around the outer wall or in the interlayer of the housing 5, adjacent to the pressure sensor array. The multi-channel high-speed synchronous acquisition board uses an FPGA + multi-channel high-speed ADC architecture, with the FPGA acting as the core controller responsible for management. The logic timing of each channel, the ADC, i.e., analog-to-digital converter, has high resolution, no less than 16-bit, to accurately sense pressure changes at the micropascal level. The aerodynamic parameters are time series matrices composed of the instantaneous static pressure values ​​corresponding to all spatial topology codes. These parameters reflect the micro-pressure field disturbances in the trapping chamber caused by the flapping of the insect's wings or airflow, providing basic data support for the subsequent construction of dynamic flow field models.

[0052] S102: Combining the instantaneous displacement and velocity components of the reciprocating plate 10 driven by the reciprocating rod 9, a dynamic flow field model is constructed within the trapping cavity: in, The equivalent fluid velocity generated by pest disturbance. For internal pressure, It is the viscous stress tensor.

[0053] In step S102, a dynamic flow field model inside the trapping cavity is constructed by combining the instantaneous displacement and velocity components of the reciprocating plate 10 driven by the reciprocating rod 9. The specific implementation method is as follows: by using displacement sensors and speed sensors preset on the reciprocating rod 9, the instantaneous displacement vector of the reciprocating plate 10 moving with the time axis in the trapping cavity is obtained. and instantaneous velocity vector The displacement sensor has high resolution and high response frequency, and can capture the linear axial displacement of the reciprocating rod 9 in real time. Its working principle is that the induction magnetic ring or grating reading head moves with the reciprocating rod 9 to generate an electrical signal proportional to the physical displacement. After processing by the internal transmitter, the signal is output as discrete time-series displacement data. The velocity sensor is a dedicated electromagnetic induction velocity sensor, which is defined as the dynamic boundary condition of the trapping cavity computational domain to update the geometric topology of the fluid space in the cavity in real time. The spatial topology encoding acquired in step S101 is used to... Instantaneous static pressure value of information nodes Mapped to the internal pressure distribution function in the fluid control equations, a dynamic flow field model describing the aerodynamic characteristics within the cavity is constructed using the principle of momentum conservation. ,in, This represents the divergence operator, used to calculate the spatial flux change of a fluid physical quantity per unit volume. This indicates the standard air density within the trapping chamber. This represents the equivalent fluid velocity vector caused by the entry of pests, wing flapping disturbance, and the motion of the reciprocating plate. This represents the tensor outer product operator, whose operands are... This constitutes the convection term of the fluid, characterizing the spatial transport properties of momentum as the fluid flows. This represents the instantaneous internal pressure scalar within the cavity, corresponding to the static pressure values ​​fed back from each spatial node. For a unit tensor, the pressure term In a tensor field, it exhibits an isotropic normal stress distribution. The viscous stress tensor is used to quantify the frictional effect between air molecules and the stress distribution generated by molecular diffusion. Using the finite volume method or finite element method, the displacement and velocity components under dynamic boundary conditions are injected as external excitation equations. The gradient evolution of the instantaneous static pressure values ​​at the nodes over time is coupled and solved to obtain the high-precision velocity vector field and stress field distribution within the trapping cavity. Specifically, the trapping cavity space defined inside the outer shell 5 is discretized using preprocessing software, and a three-dimensional computational mesh composed of numerous computational units is constructed. The motion region of the reciprocating plate 10 is defined using dynamic mesh technology. The mapping relationship between mesh deformation and object motion is established using the Lagrange-Euler ALE description method. The obtained instantaneous displacement vector of the reciprocating plate 10 is then used to calculate the velocity vector field and stress field distribution within the trapping cavity. and instantaneous velocity vector As a dynamic boundary condition, it is applied to the corresponding mesh boundary nodes, causing the geometric topology of the computational domain to be updated synchronously with the physical movement of the reciprocating plate 10, generating a compression or expansion effect due to volume changes, thus transforming the process in step S101... Spatial topology encoding Measured instantaneous static pressure at the node As the pressure driving source or boundary constraint term mapped to the corresponding coordinate point of the computational grid, it serves as the known pressure term in the partial differential equation system. When using the finite volume method, the momentum conservation equation is spatially integrated on each computational unit, transforming the continuous field variables into discrete algebraic equations. When using the finite element method, the equations are transformed into a weak form by selecting basis functions for solution. Within each discrete time step, the solver coupled to calculate the pressure gradient generated by the instantaneous static pressure value in three-dimensional space. Combining the velocity component excitation brought about by the motion of the reciprocating plate 10, the velocity component of each grid node is iteratively solved. Equivalent fluid velocity at time t The three-dimensional components are used to calculate the viscous stress tensor, which characterizes the internal friction effect of the fluid, based on the fluid constitutive equation. By continuously solving the above physical quantities over time, a high-precision velocity vector field distribution and stress field distribution that dynamically evolve over time within the trapping cavity are obtained. This transforms scattered pressure monitoring point information into a complete physical field model describing the aerodynamic characteristics inside the cavity, providing a data foundation for accurately extracting the weak flow field disturbance characteristics caused by pests entering or flapping their wings. This model fully characterizes the dynamic unsteady characteristics of the micro-pressure field inside the trapping cavity under the superposition of mechanical motion and biological disturbance, providing a feature extraction space with rigorous physical logic for subsequent identification of pest categories and behavioral characteristics.

[0054] The control system extracts pest activity features based on a dynamic flow field model, and the specific steps include:

[0055] S201: Extract the frequency and amplitude characteristics of micro-pressure fluctuations caused by insects flapping their wings or crawling in the dynamic flow field model;

[0056] In step S201, the specific implementation method for extracting the frequency and amplitude characteristics of micro-pressure fluctuations caused by insects flapping their wings or crawling in the dynamic flow field model is as follows: from the dynamic flow field model Retrieval and spatial topology coding of each measurement point node Corresponding instantaneous static pressure value Time series data are processed using a preset adaptive filtering algorithm or background subtraction operator to remove the system background pressure component generated by the periodic mechanical motion of the reciprocating plate 10, thereby separating the weak perturbation pressure signal induced by the biological behavior of pests. The weak pressure disturbance signal is mapped from the time domain to the frequency domain using Fast Fourier Transform or Discrete Wavelet Transform. By searching for the dominant peak points in the spectral energy distribution, the frequency of the micro-pressure fluctuation is obtained. Frequency refers to the number of periodic pulsations of the pressure field per unit time, used to characterize the speed of wing flapping or the rhythm of crawling gait of pests. The weak pressure disturbance signal is then extracted in the time domain. The amplitude feature of micro-pressure fluctuation is defined as half the difference between the peak and trough values ​​within a single fluctuation cycle, or its root mean square value within a preset sampling window. This amplitude feature reflects the maximum distance the pressure deviates from the equilibrium position and is used to characterize the force of an insect's wing flapping or the intensity of disturbance caused by its body size. The extracted frequency and amplitude features are then encoded using spatial topology. Mapping to the corresponding grid nodes constructs a feature matrix that reflects the specific biodynamic attributes of pests, providing high-dimensional quantitative criteria for subsequent classification and identification.

[0057] S202: Calculate the mobilization probability of the pest at the entry hole 6. To assess the positive effect of current airflow fluctuations on the frequency of pest entry;

[0058] In step S202, the mobilization probability of the pest at the entry hole 6 is calculated. The specific implementation method for evaluating the gain effect of current airflow fluctuations on the frequency of pest entry is as follows: based on the dynamic flow field model constructed in step S102. Locate the physical space coordinates of the insect entry hole 6 on the inner wall of the outer shell 5, and extract all mesh nodes within that area within the time window. Fluid velocity vector within and pressure gradient A biological behavior response function for pests is introduced, and a critical flow velocity threshold that can induce target pests to exhibit upwind behavior is set. and critical pressure gradient threshold Statistics within the time window Inside, the fluid parameters at the six inlet holes simultaneously meet the requirements. and Effective stimulation duration This will effectively stimulate the duration Total duration of the time window The ratio is defined as the mobilization probability. ,Right now This probability quantitatively characterizes the likelihood that the current airflow environment will draw or induce pests lingering at the orifice into the trapping chamber, by comparing it with the baseline entry probability in the stationary state of the reciprocating plate 10. Calculate the current mobilization probability relative to the baseline entry probability The rate of change, i.e. The rate of change is defined as the gain effect of airflow fluctuation on the frequency of pest entry, reflecting the physical effectiveness of the unsteady disturbance flow field generated by the reciprocating plate 10 in breaking the static state of pests and improving trapping efficiency.

[0059] S203: Integrating micro-pressure fluctuation characteristics with mobilization probability The data is then fused to generate a multidimensional feature vector set that reflects the real-time activity of pests.

[0060] In step S203, the micro-pressure fluctuation characteristics are compared with the mobilization probability. The specific implementation of fusing and generating a multi-dimensional feature vector set reflecting the real-time activity of pests is as follows: The micro-pressure fluctuation frequency extracted in step S201... and amplitude and the mobilization probability calculated in step S202 To perform time-series alignment, considering the inconsistency in the physical dimensions of the various parameters, a range normalization method is used to uniformly map the above parameters to a specific value. The dimensionless interval eliminates the interference of numerical magnitude differences on the fusion results, using time points. Based on this, a fundamental state vector is constructed, comprising normalized frequency, normalized amplitude, and mobilization probability. The three components are then simultaneously calculated within a preset sliding time window. The rate of change within a given time interval is used as a dynamic trend component. The basic state vector and the dynamic trend component are concatenated sequentially to construct a six-dimensional comprehensive feature vector for the current moment. According to the continuous time series acquisition sequence, the continuous The comprehensive feature vectors at each sampling time are arranged in rows to generate a multidimensional feature vector set. Reflecting the real-time activity level of pests refers to quantitatively describing the current movement state of pests through the distribution pattern of values ​​in this vector set. The vector set exhibits high frequency, high amplitude, and... A significant increase in the value indicates that the pest is in a highly active flight approaching state, while a low-frequency, low-amplitude but... The stable combination of features indicates that the pest is in a low-activity crawling or lingering state, and this vector set is directly used as the input layer data for subsequent artificial intelligence classification algorithms.

[0061] The control system classifies the pest scale using a support vector machine and feeds the classification back to the drive device 7. The specific steps include:

[0062] S301: Input the multidimensional feature vector set into the pre-trained support vector machine classification model to identify the size level of the pest group that has entered the shell 5.

[0063] In step S301, the multidimensional feature vector set is input into a pre-trained support vector machine classification model to identify the size level of the pest population currently entering the shell 5. The specific implementation method is as follows: a nonlinear support vector machine classifier based on the radial basis function kernel is constructed, and its mathematical expression is... The multidimensional feature vector set generated in step S203 is processed using the radial basis kernel function. To address the problem of nonlinear separability of pest behavioral features, a high-dimensional feature space is mapped from the original low-dimensional space. The pre-trained support vector machine classification model is built through supervised learning. Specifically, a large amount of historical flow field feature data with known pest numbers is collected as training samples, and the manually labeled results of the training samples are divided into preset level labels, such as defining the number of pests. It is a single zero-star unit. It is a small group gathering level. For large-scale outbreaks, the optimal hyperplane that maximizes the separation of samples at different levels is found by solving a convex quadratic programming problem. During real-time identification, the multidimensional feature vector set generated at the current moment is used as a test sample and input into the model. The model calculates the geometric distance and orientation of the test sample relative to each optimal hyperplane in high-dimensional space, determines the region to which it belongs based on the sign of the decision function, and outputs the corresponding pest population size level label. This level label intuitively reflects the insect population density pressure in the trapping chamber at the current moment, providing a decision basis for subsequent adjustment of the operating power of the trapping equipment or alarm strategy.

[0064] S302: Based on the identified scale level, calculate the optimal ratio of required extermination energy consumption and output a speed adjustment command for the reciprocating shaft 8;

[0065] In step S302, based on the identified scale level, the optimal energy consumption ratio for pest control is calculated, and the speed adjustment command for the reciprocating shaft 8 is output. The specific implementation method is as follows: An energy efficiency matching strategy table preset in the main control unit memory is called. This strategy table, through experimental calibration, establishes the correspondence between different pest aggregation scale levels and the minimum mechanical power required for the system to maintain an effective trapping flow field. The optimal energy consumption ratio for pest control is defined as ensuring that the pest escape rate is below a preset safety threshold. Under the premise of [missing information], the system indexes the corresponding target energy consumption ratio from the strategy table based on the current scale level output in step S301, such as single-species zero-star, small-group aggregation level, or large-group outbreak level, and maps and calculates the target energy consumption ratio into the target rotational speed value that the reciprocating shaft 8 should maintain through a preset inverse dynamics conversion model. The specific process is as follows: Based on the principles of rigid body dynamics and fluid mechanics, the load torque equation of the reciprocating plate 10 moving within the trapping cavity is constructed. ,in This is the equivalent moment of inertia of the mechanical transmission system. The coefficient of viscous friction is... This is the aerodynamic load coefficient related to the air resistance of the trapping chamber, which is positively correlated with the frontal area of ​​the reciprocating plate and the air density. Given the static friction torque of the system, determine the target output power of the system based on the target energy consumption ratio. Using the relationship between power and torque Establish information about rotational speed The nonlinear equation is obtained by solving the equation using the Newton-Raphson iteration method or by consulting a pre-stored power-speed characteristic curve table. The unique positive real solution to this equation is the target speed value. Through an incremental PID closed-loop control algorithm, the current actual speed feedback value and target speed value of the reciprocating shaft 8 are calculated in real time. Deviation between The specific process is as follows: during the discrete sampling period Time, sampling interval Not greater than Read the current actual speed fed back by the encoder. Calculate the speed deviation at the current moment. Retrieve the deviation recorded in memory from the previous moment. Deviation from the previous time point The incremental algorithm formula is used to calculate the increment of the control quantity. ,in , , The preset proportional, integral, and differential gain coefficients are used to calculate the increment. The control output value superimposed on the previous time step Above, that is The method obtains the PWM duty cycle value used to drive device 7 at the current moment. It only uses the deviation values ​​of the last three times for calculation, which effectively avoids the integral saturation phenomenon that is easy to occur when the traditional position PID is started or when the drive device 7 changes speed significantly. This ensures the smoothness and response speed of the reciprocating shaft speed regulation. Based on the deviation, the control quantity used to correct the output torque of drive device 7 is calculated and encoded into a digital control signal containing a specific pulse width modulation duty cycle value or voltage frequency parameter, i.e., speed regulation command. This command is sent to the execution unit of drive device 7 that drives reciprocating shaft 8 through the drive circuit to control drive device 7 to accelerate, decelerate or maintain constant speed, so that reciprocating shaft 8 and its connected mechanical structure operate at a frequency that matches the current pest density, thereby maximizing trapping efficiency while achieving dynamic balance of system energy consumption.

[0066] S303: Dynamically adjust the output frequency of the drive device 7 so that the reciprocating cycle of the reciprocating plate 10 is phase-locked with the peak period of pest entry, so as to maximize the killing efficiency of the sealed heating space.

[0067] In step S303, the output frequency of the drive device 7 is dynamically adjusted so that the reciprocating cycle of the reciprocating plate 10 is phase-locked with the peak period of pest entry, thereby maximizing the killing efficiency of the sealed heating space. The specific implementation method is as follows: the system main control unit calculates the mobilization probability that changes over time in the previous steps. By performing time-domain periodic analysis and using autocorrelation functions or sine wave fitting algorithms to identify the quasi-periodic characteristics of pest swarm entry behavior, the time point when the mobilization probability reaches its maximum within the next time window is predicted and defined as the peak pest entry moment. The specific process is as follows: The system constructs a memory array of length [length missing]. A sliding time window stores historical data sequences of mobilization probabilities over a recent period. When using the autocorrelation function method, the autocorrelation coefficient of the discrete sequence is calculated. By searching The lag time corresponding to the first maximum point in the non-zero lag interval This was determined as the baseline cycle for the activity of pest populations. To achieve higher time resolution, a target fitting function is constructed using a sine wave fitting algorithm. ,in For amplitude, This is the DC bias component. Angular frequency, As the initial phase, the objective function of the sum of squared errors is constructed using the least squares method. Through iterative solution, Minimize the set of parameters This involves obtaining an analytical expression for the precise phase information of pest activity at the current moment, and then, based on the fitted analytical function, solving for the extreme points of the future time axis by setting the first derivative... And the second derivative Calculate the distance from the current time The time coordinate corresponding to the most recent maximum value, i.e. ,in In order to make The smallest integer of the predicted peak moment when the next wave of pests enters the trapping area is determined. The system will use this as the reference point for phase locking, monitor the movement of the reciprocating plate 10 in real time, and move it to the optimal working position to form a sealed heating space, i.e., the bottom dead center or the sealing closure point, which is defined as the effective eradication phase point. Obtain the estimated time when the device reaches the phase point on the reversible plate 10. Subsequently, a phase-locked loop control strategy was introduced to calculate the peak time of pest entry. With the expected time of effective mechanical extermination Time deviation between This time deviation is converted into a phase difference. Based on this phase difference, a frequency compensation amount is generated by a PID controller. Dynamically superimposed on the basic drive frequency of the drive device 7, if Then reduce the output frequency to delay the mechanical phase, if The output frequency is increased to advance the mechanical phase, forcing the reciprocating plate 10 to synchronize with the biological activity rhythm of the pests, thus achieving phase locking. This ensures that whenever a large number of pests flood into the insect inlet 6, the reciprocating plate 10 is exactly in the sealed position and starts the heating program. In this way, without the need for continuous high-frequency operation, the pest tide can be accurately captured, maximizing both energy efficiency and kill rate.

[0068] The motion path of light source 4 is digitally defined using a spatiotemporal trajectory mapping algorithm. The specific steps include:

[0069] S401: Acquire the combined motion parameters of the light source 4 as it moves up and down with the circular plate 17 and as it rotates with the annular block 172;

[0070] In step S401, the specific implementation of obtaining the composite motion parameters of the light source 4 moving up and down with the circular plate 17 and rotating with the annular block 172 is as follows: A cylindrical coordinate system is established to describe the spatial pose of the light source. The horizontal plane where the lowest point of the circular plate 17's travel is located is set as the zero height reference plane. The center of the rotation plane of the annular block 172 is set as the pole. A fixed radial direction is selected as the starting direction of the polar axis. A linear displacement sensor is installed on the guide path of the circular plate 17. The main body or waveguide of the linear displacement sensor is rigidly fixed in the vertical direction to the side of the guide column supporting the up and down sliding of the circular plate 17 or the inner wall of the outer shell 5. The sensor is calibrated by a level to ensure that the parallelism deviation between its measuring axis and the motion axis of the circular plate 17 is less than 1%. The reading head or position magnetic ring of the linear displacement sensor is fixedly connected to the outer edge of the circular plate 17 via an L-shaped metal bracket. When the circular plate 17 drives the light source 4 to perform a lifting action, the reading head or magnetic ring will generate a synchronous displacement. The linear displacement sensor then converts this physical displacement into a high-precision analog voltage signal or SSI digital signal output through its internal circuitry, thereby realizing the measurement of axial displacement. For micron-level monitoring, a photoelectric rotary encoder is used. Its housing is fixed to the tail of the drive device 7 or the reducer housing that drives the annular block 172 to rotate. Its rotating shaft is coaxially connected to the drive shaft through a flexible coupling. By reading the cumulative pulse count of the reciprocating shaft 8 of the drive device 7 and combining it with the transmission ratio to calculate the absolute angle of the annular block 172, the vertical distance of the circular plate 17 relative to the zero height reference plane is monitored in real time, and the real-time axial displacement of the light source 4 is obtained. Hall sensors, coaxially connected to the drive shaft of the annular block 172 and evenly distributed along the rotation path, are used. As the Hall sensors pass through, sensor mounting slots are evenly spaced along the circumferential direction on the upper surface of the circular plate 17 to embed and install them. A Hall element is installed, and multiple trigger magnets are embedded at corresponding positions on the bottom surface of the ring block 172. When the ring block 172 rotates, the magnets sweep across each Hall element in sequence. The system calculates the instantaneous rotational angular displacement of the ring block 172 by capturing the time difference of the Hall level transitions. The rotation angle of the ring block 172 relative to the starting direction of the polar axis is collected in real time, and the real-time rotational angular displacement of the light source 4 in the horizontal plane is obtained. The known installation radius from the optical center of light source 4 to the axis of rotation is... The amount of lifting displacement With rotational angular displacement Data alignment and fusion are performed on a unified time axis to construct motion equations describing the spiral or complex trajectory of light source 4 in three-dimensional space. The axial velocity is calculated by differentiating with respect to time. and circumferential tangential linear velocity The composite motion parameter consists of real-time lifting displacement, rotational angular displacement, and corresponding velocity components. This parameter accurately quantifies the dynamic illumination path of the light source during the trapping process, providing kinematic data support for subsequent calculation of the spatial integral distribution of light intensity.

[0071] S402: Based on the driving amount of the reciprocating shaft 8 to gear 19, calculate the absolute coordinates of the light source 4 in the three-dimensional space of the lampshade 2 in real time, and establish a time series distribution map of the light source position.

[0072] In step 402, based on the driving amount of the reciprocating shaft 8 to gear 19, the absolute coordinates of the light source 4 in the three-dimensional space of the lampshade 2 are calculated in real time. The specific implementation method for establishing the time series distribution map of the position of the light source 4 is as follows: construct a map with the geometric center of the bottom surface of the lampshade 2 as the origin. A three-dimensional rectangular coordinate system, in which The axis is vertically upward. shaft and The shaft is located in the horizontal plane. An encoder or position sensor mounted on the reciprocating shaft 8 acquires in real time the angular or linear displacement values ​​output by the gear 19, which are defined as the driving quantity. The specific process is as follows: A high-resolution absolute multi-turn rotary encoder is selected as the position sensor. Its housing is fixed to the bearing seat of the reciprocating shaft 8 through an anti-rotation torque bracket. The encoder shaft is rigidly connected to the non-drive end of the reciprocating shaft 8 through a zero-backlash flexible coupling to ensure that there is no relative slippage or angular lag between the encoder shaft and the reciprocating shaft 8. When the reciprocating shaft 8 rotates to drive gear 19, the photoelectric code disk inside the encoder rotates synchronously. The photoelectric detection unit reads the Gray code or binary encoding information on the code disk in real time and transmits the encoded data to the main control unit through the SSI or BiSS high-speed bus. The main control unit transmits the encoded data at a speed of not less than... The coded data is read at the sampling frequency and converted into the corresponding decimal angle value, which is then used as the reference to set the system's initial power-on position or mechanical zero point. Calculate the current time Cumulative rotation angle If the reciprocating shaft 8 drives the gear 19 in a rotary drive manner, then the cumulative rotation angle is directly defined as the driving amount. When the reciprocating shaft 8 converts rotary motion into linear motion through a lead screw and other mechanisms to drive gear 19, the lead screw lead is used to determine the linear motion. Converting the angle into linear displacement, i.e., defining the driving quantity. This driving force Accurately reflects the power source in The input position variable constantly applied to the transmission system eliminates the initial motion state before transmission backlash, based on the mechanical transmission ratio between reciprocating shaft 8 and gear 19. And the geometric motion relationship between gear 219 and its subsequent transmission mechanism, such as the lead screw or connecting rod that drives the light source, is used to construct the kinematic transfer function, which converts the driving quantity... Converted to the cylindrical coordinate components of light source 4 in three-dimensional space, i.e., radial distance. Fixed value or variable, polar angle and axial height Using coordinate transformation formula , , The solution is obtained for light source 4. Time relative to the origin absolute coordinates In time Using the index axis, the absolute coordinate points calculated at continuous acquisition times are arranged and smoothly connected in time sequence to generate a three-dimensional curve describing the trajectory of the light source in the space inside the lampshade 2, i.e., a time series distribution map. This map intuitively shows the coverage of the trapping space by the light source's optical center at different time points, providing a geometric positional basis for subsequent evaluation of illumination uniformity.

[0073] The motion trajectory of light source 4 is asymmetrically optimized using a variational path prediction algorithm. The specific steps include:

[0074] S501: Using a variational path prediction algorithm, with the objective function of minimizing the trajectory deviation caused by the phototaxis of pests, the expected approach path of pests around the trapping device is calculated:

[0075]

[0076] in, To predict the flight path of pests, the optimal light-induced vector field is obtained by solving the Euler-Lagrange equations.

[0077] In step S501, the variational path prediction algorithm is used to calculate the expected approach path of pests around the trapping device, with the objective function being minimizing the trajectory deviation caused by the phototaxis of pests. The specific implementation method is as follows: based on the biological kinematic characteristics of the pests and the current ambient light field distribution, a Lagrangian function describing the flight state of the pests is constructed. ,in It consists of the difference between the kinetic energy term of the insect's flight and the light-induced potential energy term. Characterizing pests in The three-dimensional spatial coordinate vector at time [time]. Characterizing pests in The instantaneous velocity vector at time t is used to establish a target functional that reflects the cost of the pest's entire flight path. ,in This is the starting point at which the pest is identified and locked by the system. This integral value is used to predict the final time when pests will reach the trapping area. This represents the bioenergy consumed or the accumulated path deviation cost of the pest during its entire phototactic flight. Based on the Hamilton-Ostrogradsky principle, finding the most probable pest flight path is transformed into an extremum problem in the variational method, that is, solving for the objective functional. Stationary paths that take the minimum value, through the functional By performing variational operations, the corresponding Euler-Lagrange equations are derived: Using numerical integration methods, such as the Runge-Kutta method, under known boundary conditions (i.e., the current position of the pest and the position of the trapping light source), the system of differential equations is solved to obtain a theoretically optimal flight curve that minimizes trajectory deviation and best conforms to the biological phototaxis instinct. The tangential gradient at each point along the curve is calculated to generate an optimal light-induced vector field that guides the dynamic adjustment of the light source. This vector field defines the direction and magnitude of the light intensity gradient required to maximize the trapping probability at each point in space.

[0078] S502: Based on the optimal light-induced vector field, dynamically adjust the instantaneous transmission ratio between gear 19 and reciprocating shaft 8;

[0079] In step S502, the specific implementation method of dynamically adjusting the instantaneous transmission ratio between gear 2 19 and reciprocating shaft 8 according to the optimal light-induced vector field is as follows: The system main control unit analyzes the optimal light-induced vector field generated in step S501, extracts the target illumination projection angle and intensity gradient requirements of the corresponding spatial point on the expected approach path of the pest at the current moment, and calculates them into the instantaneous target pose that the light source 4 needs to achieve in three-dimensional space, including the height position and horizontal rotation angle. A continuously variable transmission logic based on the non-circular gear or electronic cam control principle is introduced. By adjusting the intermediate transmission mechanism connected between the reciprocating shaft 8 and gear 2 19, such as an electronically controlled continuously variable transmission CVT, a servo direct drive differential module, or a flexible transmission pair with a variable pitch circle radius, the speed coupling relationship between the two is changed in real time. The system calculates the speed compensation amount required for correction based on the deviation between the instantaneous target pose and the current actual pose. If the target pose requires the light source to quickly sweep across a certain blind area, the instantaneous transmission ratio is increased instantaneously. This allows gear 19 to achieve a higher angular velocity while maintaining the same rotational speed on the reciprocating shaft 8, and conversely, reduces the transmission ratio. By driving the actuators of the transmission mechanism, such as magnetic powder clutches or servo motors, through high-frequency pulse width modulation signals, the transmission ratio value is continuously adjusted with a millisecond-level response speed. This breaks the fixed linear linkage relationship of traditional mechanical structures, enabling the motion trajectory of light source 4 to nonlinearly and accurately follow and cover the optimal light-induced vector field, thereby maximizing the traction of the visual perception of pests.

[0080] S503: By changing the ratio of the rotational angular velocity of the light source 4 to its lifting speed within the lampshade 2, an asymmetrical dynamic light and shadow effect is generated to break the inertia of pests' avoidance behavior towards fixed-frequency light sources.

[0081] In step S503, by changing the ratio of the rotational angular velocity to the lifting velocity of the light source 4 within the lampshade 2, an asymmetrical dynamic light and shadow effect is generated to break the inertia of pests' avoidance behavior towards a fixed-frequency light source. The specific implementation method is as follows: Define the kinematic state variables of the light source 4, including its instantaneous angular velocity of rotation around the central axis. and instantaneous rise and fall velocity along the axial vertical movement And construct the dimensionless velocity coupling ratio between the two. The system dynamically adjusts the output parameters of the drive device 7 and the transmission mechanism in real time based on a preset chaotic mapping algorithm, such as Logistic chaotic mapping or a pseudo-random sequence generator. Specifically, a discrete Logistic chaotic iterative equation is embedded in the underlying logic of the microcontroller unit of the trapping device in this application. ,in For the first The dimensionless state variable generated in the next iteration takes values ​​ranging from 1 to 10. , As the bifurcation control parameter, set it at Within a certain range, to ensure the system is in a completely chaotic state rather than a periodic oscillation state; the system operates within a preset control period. ,For example Iterative operations are performed with a step size to generate chaotic sequences with ergodicity and non-repetition in real time. A linear mapping model between state variables and hardware execution parameters is constructed, and the output frequency adjustment range of the driving device (7) is defined respectively. And transmission mechanisms, such as electronically controlled continuously variable transmissions, have a transmission ratio adjustment range. Using the formula and The continuous terms in the chaotic sequence are mapped to the target driving frequency and target transmission ratio at the current moment, respectively. The main control unit then calculates... The signal is converted into a corresponding PWM duty cycle signal and sent to the frequency converter driver of the drive device 7, while simultaneously... The command is converted into a servo position command and sent to the actuator 7 of the transmission mechanism. Through dual-channel nonlinear asynchronous modulation, the rotational angular velocity of the light source is adjusted. With lifting speed They exhibit uncorrelated random variation characteristics, thus physically realizing the velocity coupling ratio. The chaotic oscillations caused It exhibits non-periodic, violent fluctuations on the time axis, driving the light source 4 to draw a non-uniform spiral motion trajectory with real-time changing pitch within the lampshade 2. When the size increases, the light source exhibits a dense scanning state of high-frequency rotation and low-speed lifting. When the light source decreases, it exhibits a sparse jump state of low-frequency rotation and high-speed rise and fall. This random switching of movement mode causes the light beam transmitted through the lampshade 2 to form a scattered light field in the environmental space with extremely uneven light intensity distribution, fluctuating movement speed and unpredictable direction, i.e., an asymmetrical dynamic light and shadow effect. This effect utilizes the high sensitivity of the insect compound eye system to dynamic light flow. By forcibly blocking the physiological adaptation of the insect's nervous system to a single mechanical frequency light signal through the non-steady jump of light and shadow frequency, i.e., biological habituation or avoidance inertia, the insect is forced to always be in a state of visual alertness and phototaxis, maximizing the biological attraction of the trapping light wave at the physiological level.

[0082] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A grain storage pest trapping device, comprising a top plate (1); a lampshade (2) is fixedly connected to the bottom of the outer wall of the top plate (1) via a connecting block 1; a bottom plate (3) is fixedly connected to the bottom of the outer wall of the lampshade (2) via a connecting block 2; a light source (4) is provided inside the lampshade (2); an outer shell (5) is provided on the outer wall of the top plate (1); a set of insect inlet holes (6) is provided on the outer wall of the outer shell (5); characterized in that, The top of the outer wall of the top plate (1) is fixedly connected to a drive device (7) by a fixing plate; the output end of the drive device (7) is provided with a reciprocating shaft (8); the top of the outer wall of the top plate (1) is rotatably connected to a reciprocating rod (9), and the bottom of the outer wall of the reciprocating rod (9) extends into the outer shell (5); the outer wall of the reciprocating rod (9) is provided with a reciprocating plate (10), and the outer wall of the reciprocating plate (10) is in contact with the inner wall of the outer shell (5), and the inner wall is in contact with the lampshade (2); the bottom of the outer wall of the top plate (1) and the top of the outer wall of the bottom plate (3) are both provided with a heating insect-killing device (11); the top and bottom of the outer wall of the reciprocating plate (10) are both fixedly connected with an annular plate (12); the outer walls of the reciprocating shaft (8) and the reciprocating rod (9) are both fixedly connected with sprockets (13), and a pair of sprockets (13) are connected by a chain (14).

2. The grain storage pest trapping device according to claim 1, characterized in that, The inner wall of the outer shell (5) is rotatably connected to the outer walls of the top plate (1) and the bottom plate (3); a ring rack (15) is fixedly connected to the top of the outer wall of the outer shell (5); a gear (16) is fixedly connected to the outer wall of the reciprocating rod (9); the gear (16) meshes with the ring rack (15).

3. The grain storage pest trapping device according to claim 2, characterized in that, The bottom of the outer wall of the reciprocating shaft (8) extends into the lampshade (2); a circular plate (17) is provided on the outer wall of the reciprocating shaft (8); the outer wall of the light source (4) is fixed to the inner wall of the circular plate (17); a circular rod (18) is fixed to the bottom of the outer wall of the connecting block one, and the circular rod (18) passes through the circular plate (17); the circular rod (18) and the circular plate (17) are slidably connected.

4. The grain storage pest trapping device according to claim 3, characterized in that, The circular plate (17) includes a circular block (171) and an annular block (172); the outer side wall of the circular block (171) is rotatably connected to the inner side wall of the annular block (172); the circular block (171) and the reciprocating shaft (8) are reciprocatingly connected; the outer side wall of the reciprocating shaft (8) is slidably connected to a gear two (19), and the bottom end of the outer side wall of the gear two (19) is rotatably connected to the top end of the outer side wall of the circular block (171); the top end of the outer side wall of the circular block (171) is rotatably connected to a gear three (20), and the gear three (20) meshes with the gear two (19); the outer side wall of the annular block (172) is fixedly connected to an annular rack three (21), and the annular rack three (21) meshes with the gear three (20); the light source (4) is fixedly connected to the annular block (172).

5. The grain storage pest trapping device according to claim 4, characterized in that, The control system of the drive device (7) performs cavity environment modeling based on dynamic flow field simulation, and the specific steps include: S101: Aerodynamic parameters are collected in real time by an array of pressure sensors installed on the inner wall of the outer shell (5); S102: Based on the instantaneous displacement and velocity components of the reciprocating plate (10) driven by the reciprocating rod (9), a dynamic flow field model is constructed in the trapping cavity.

6. The grain storage pest trapping device according to claim 5, characterized in that, The control system extracts pest activity features based on the dynamic flow field model, and the specific steps include: S201: Extract the frequency and amplitude characteristics of micro-pressure fluctuations caused by insects flapping their wings or crawling in the dynamic flow field model; S202: Calculate the mobilization probability of pests at the inlet hole (6) and evaluate the gain effect of the current airflow fluctuation on the pest entry frequency; S203: The micro-pressure fluctuation characteristics are fused with the mobilization probability to generate a multi-dimensional feature vector set that reflects the real-time activity of pests.

7. The grain storage pest trapping device according to claim 6, characterized in that, The control system classifies the pest scale using a support vector machine and feeds it back to the drive device (7). The specific steps include: S301: Input the multidimensional feature vector set into the pre-trained support vector machine classification model to identify the size level of the pest group currently entering the shell (5); S302: Based on the identified scale level, calculate the required optimal ratio of extermination energy consumption and output a speed adjustment command for the reciprocating shaft (8); S303: Dynamically adjust the output frequency of the drive device (7) so that the reciprocating cycle of the reciprocating plate (10) is phase-locked with the peak period of pest entry, so as to maximize the killing efficiency of the sealed heating space.

8. The grain storage pest trapping device according to claim 7, characterized in that, The motion path of the light source (4) is digitally defined using a spatiotemporal trajectory mapping algorithm. The specific steps include: S401: Obtain the composite motion parameters of the light source (4) as it moves up and down with the circular plate (17) and as it rotates with the annular block (172); S402: Based on the driving amount of the reciprocating shaft (8) to the gear two (19), calculate the absolute coordinates of the light source (4) in the three-dimensional space of the lampshade (2) in real time, and establish a time series distribution map of the light source position.

9. A grain storage pest trapping device according to claim 8, characterized in that, The motion trajectory of the light source (4) is asymmetrically optimized using a variational path prediction algorithm. The specific steps include: S501: Using a variational path prediction algorithm, with the objective function of minimizing the trajectory deviation caused by the phototaxis of pests, the expected approach path of pests around the trapping device is calculated. S502: Based on the optimal light-induced vector field, dynamically adjust the instantaneous transmission ratio between the second gear (19) and the reciprocating shaft (8); S503: By changing the ratio of the rotational angular velocity to the lifting speed of the light source (4) within the lampshade (2), an asymmetrical dynamic light and shadow effect is generated to break the inertia of pests' avoidance behavior towards fixed frequency light sources.

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