A regional scanning dynamic laser bird deterrent device and its bird deterrent method

Abstract

This invention provides a regional scanning dynamic laser bird deterrent device and its method, belonging to the field of bird deterrent technology for converter stations. The regional scanning dynamic laser bird deterrent device includes a three-degree-of-freedom controlled reflective sphere with several irregularly shaped, highly reflective plane mirrors on its surface; an isolation unit protecting the laser reflecting units within it; a transparent hemispherical cover at the top of the isolation unit; several laser emitting units arranged in a horizontal circular array around the reflective sphere; and a functional unit fixedly fitted to the lower outer side of the isolation unit, which has a hollow structure and houses a battery and a control module. This invention uses the reflective sphere as the laser reflecting component, driven by three-degree-of-freedom changes, causing the irregularly shaped, highly reflective plane mirrors on the reflective sphere's surface to reflect the laser emitted by the laser emitting units, thereby achieving a regional scanning bird deterrent effect. The three-level laser deterrent scheme, through distance and quantity dual-dimensional perception, upgrades the traditional blind scanning of laser bird deterrents to precise strikes.

Description

Technical Field

[0001] This invention belongs to the field of bird deterrence technology for converter stations, specifically relating to a regional scanning dynamic laser device and its bird deterrence method. Background Technology

[0002] Ultra-high voltage (UHV) converter stations are often built in remote areas with open terrain and abundant vegetation, where insects and small reptiles are abundant, easily attracting birds to forage, roost, and nest. The dense network of high-voltage filter towers, valve hall busbars, and AC filter capacitor towers with extremely small inter-layer spacing within the station provides natural landing spots for birds. However, the birds' activities of stopping, nesting, defecating, and hunting pose multiple hidden dangers: bird droppings can conduct electricity and cause insulator flashovers; large birds may short-circuit live conductors when spreading their wings or catching prey; and falling nest materials can cause inter-electrode short circuits, all of which can induce tripping, seriously affecting the safe and stable operation of power transmission. Statistics show that bird damage has become the leading external cause of tripping in the AC filter area of ​​converter stations, with a single incident potentially leading to the interruption of millions of kilowatts of power and huge economic losses.

[0003] Traditional passive bird control methods, such as bird spikes, bird boards, insulating spraying, and ultrasonic bird repellers, generally suffer from drawbacks such as blind spots, birds easily adapting, high maintenance requirements, and potential harm to rare species, resulting in a declining effectiveness year by year. In recent years, laser bird deterrence technology has seen initial applications in substations due to its advantages of being non-contact, highly directional, and causing no substantial harm to birds. However, these methods are mostly fixed-angle, continuous scanning, or simple timed control, making them difficult to adapt to the complex scenarios of converter stations with dense equipment, obstructed structures, and highly random bird activity. Furthermore, single laser beams are easily learned and adapted by birds, and their effectiveness is limited by the scanning angle and area scanning frequency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a regional scanning dynamic laser bird deterrence device, which is difficult to deal with complex scenarios where bird activity is highly random, given that existing laser bird deterrence technology is difficult to cope with.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A dynamic laser bird deterrent device for area scanning includes a laser emitting unit, a laser reflecting unit, a control module, a vision capturing unit, an isolation unit, and a functional unit. The laser reflecting unit includes a three-degree-of-freedom controlled reflecting sphere, the surface of which is provided with several irregularly shaped, highly reflective plane mirrors. The isolation unit protects the laser reflecting unit within it. The top of the isolation unit is a transparent hemispherical cover. Inside the transparent hemispherical cover, several laser emitting units are arranged in a horizontal circular array centered on the reflecting sphere. The functional unit is fixedly fitted onto the lower outer side of the isolation unit. The power supply unit has a hollow internal structure and houses a battery and the control module. The vision capturing units are arranged in a horizontal circular array uniformly around the transparent hemispherical cover on the top outer side of the power supply unit. The control module is electrically connected to the laser emitting unit, the laser reflecting unit, the vision capturing unit, and the battery.

[0007] Furthermore, the laser reflection unit also includes a servo cylinder, a support base, a rotating base, a first servo motor, a second servo motor, and a bracket; the servo cylinder is fixedly mounted on the bottom of the isolation unit, and its power output end is fixedly connected to the support base; the bottom of the rotating base is coaxially fitted into the support base, and power isolation is achieved through two upper and lower rotating bearings; the first servo motor is fixedly mounted on the support base, and the first servo motor is drivenly connected to a rotating disk above the rotating base; the reflective sphere is rotatably mounted on the bracket along the axis of the reflective sphere; the reflective sphere is coaxially drivenly connected to the second servo motor along its rotational mounting axis.

[0008] Furthermore, a hollow insulating support rod is coaxially arranged inside the support base. Conductive slip rings are respectively fitted onto the outer sides of the upper and lower parts of the hollow insulating support rod, and the two conductive slip rings are insulated from each other by an insulating isolation block. The two conductive slip rings are electrically connected to the lower conductive terminal on the support base via wires inside the hollow insulating support rod. A pair of corresponding carbon brush holders are arranged on the inner side of the rotating base, opposite to the two conductive slip rings. A conductive spring is installed inside the carbon brush holder. One end of the conductive spring is electrically connected to the conductive slip ring via a conductive carbon brush, and the other end is electrically connected to the upper conductive terminal at the end of the carbon brush holder. The second servo motor receives power through the lower and upper conductive terminals.

[0009] Furthermore, the functional unit is a geometric configuration with a smaller top and a larger bottom, formed by combining two regular hexagons of different sizes and six isosceles trapezoids; the isolation unit is coaxially nested inside the functional unit; and a flange fixing plate is fixedly installed at the bottom of the functional unit extending downwards.

[0010] Furthermore, photovoltaic cells are fixedly mounted on the six isosceles trapezoidal outer surfaces of the functional unit, and the photovoltaic cells are electrically connected to the storage battery.

[0011] Furthermore, on the reflective sphere, a light-absorbing isolation zone is provided at the connection between adjacent highly reflective plane mirrors.

[0012] Furthermore, the light-absorbing isolation region is composed of one or more of carbon nanotube materials, carbon black, or black resin coatings.

[0013] Furthermore, the visual capture unit is a thermal imaging visible light camera.

[0014] A method for regional scanning dynamic laser bird deterrence includes the following steps;

[0015] S1. The visual capture unit radiates outward from itself as the center, dividing the surrounding three-dimensional space into several three-dimensional fan-shaped regions, each corresponding to a laser emission unit. The control module constantly acquires video streams of several three-dimensional fan-shaped regions through the visual capture unit and reads each frame of the video stream.

[0016] S2. The control module detects the areas where birds appear by comparing the differences between consecutive frame images and AI annotations; it determines the approximate distance between birds by the continuous area occupied by birds appearing simultaneously in different areas; and it determines the number of birds by the number of areas occupied by each bird in different areas.

[0017] S3. When a bird enters the visual capture range, the control module formulates a corresponding laser drive-away plan based on the analysis results and sends action commands to the laser emitting unit and the laser reflecting unit.

[0018] S31. If a bird appears in a single area or two consecutive areas and occupies a continuous area in the image, it is determined that a single bird is approaching from a distance. The control module sends an action command to the laser emitting unit and the laser reflecting unit. The laser emitting unit in the corresponding area and the laser emitting unit in the adjacent area are activated simultaneously, randomly emitting red or green lasers that are reflected by the laser reflecting unit and irradiate the bird's activity area and the adjacent area.

[0019] S32. If birds appear simultaneously in more than two consecutive areas and occupy a continuous area in the image, it is determined that a single bird is rapidly approaching at close range. The control module sends an action command to the laser emitting unit and the laser reflecting unit. The laser emitting units corresponding to all areas are activated simultaneously, randomly emitting red or green lasers that are reflected by the laser reflecting unit and irradiate the bird's activity area and adjacent areas.

[0020] S33. If birds appear in multiple areas and exist in independent areas with multiple points of distribution in the image, it is determined that the flock of birds is approaching. The control module sends an action command to the laser emitting unit and the laser reflecting unit. The laser emitting units corresponding to all areas are activated simultaneously, randomly emitting red or green lasers that are reflected by the laser reflecting unit and irradiate the bird activity area and adjacent areas.

[0021] S34. During the bird migration season, the laser reflection unit is randomly raised and lowered by the electric cylinder, causing the reflective sphere to reflect external natural light irregularly at different times, forming a flickering light spot.

[0022] Compared with existing technologies, this invention uses a reflective sphere as the laser reflecting component. Driven by three degrees of freedom, several irregularly shaped, highly reflective plane mirrors on the surface of the sphere reflect the laser emitted by the laser emitting unit. The laser emitting unit has a fixed emission angle, and the highly reflective plane mirrors are fixedly mounted on the rotating sphere. These irregularly shaped mirrors continuously rotate, causing the laser beam incident on the sphere to change its incident angle relative to the mirrors within a range of angle variations. This achieves a regional scanning effect to repel birds. Furthermore, the presence of a light-absorbing isolation zone causes the laser beam, combined with the irregular shape of the highly reflective mirrors, to exhibit a random flashing state of bright-dark-bright in space. The spatiotemporal frequency of the light spot received by the bird's retina becomes chaotic, preventing adaptation and fundamentally eliminating the drawbacks of increased bird adaptability. This enhances the frightening effect and is more conducive to achieving long-term bird repellency. The three-level laser deterrence scheme upgrades the traditional blind scanning of laser bird deterrence to precise targeting through distance and quantity perception, reducing some ineffective light emission and extending the battery life of the photovoltaic system. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Figure 1 : A three-dimensional structural schematic diagram of Embodiment 1 of the present invention;

[0025] Figure 2 : Front view of Embodiment 1 of the present invention;

[0026] Figure 3 : A cross-sectional structural schematic diagram of Embodiment 1 of the present invention;

[0027] Figure 4 : A schematic diagram of the isolation unit and its internal cross-sectional structure according to Embodiment 1 of the present invention;

[0028] Figure 5 : A schematic diagram of the upper structure of the isolation unit in Embodiment 1 of the present invention;

[0029] Figure 6: One of the three-dimensional cross-sectional structural diagrams of the internal structure of the rotating seat in Embodiment 1 of the present invention;

[0030] Figure 7 : A second schematic diagram of the internal three-dimensional cross-sectional structure of the rotating seat in Embodiment 1 of the present invention;

[0031] Figure 8 : A schematic diagram of the reflective sphere structure of Embodiment 1 of the present invention;

[0032] Figure 9 : A schematic diagram of the arrangement of the visual capture unit in Embodiment 2 of the present invention;

[0033] Figure 10 : Logic block diagram of Embodiment 2 of the present invention;

[0034] Among them, 1-laser emitting unit, 2-laser reflecting unit, 21-reflecting sphere, 211-high reflectivity plane mirror, 212-light-absorbing isolation area, 22-servo electric cylinder, 23-support base, 231-hollow insulating support rod, 232-conductive slip ring, 233-insulating isolation block, 234-lower conductive terminal, 24-rotating base, 241-rotating disk, 242-carbon brush holder, 243-conductive spring, 244-conductive carbon brush, 245-upper conductive terminal, 25-first servo motor, 26-second servo motor, 27-bracket, 28-rotating bearing, 3-control module, 4-vision capturing unit, 5-isolation unit, 51-transparent hemispherical cover, 6-functional unit, 61-battery, 62-flange fixing plate, 63-photovoltaic cell. Detailed Implementation

[0035] To better understand the present invention, the following embodiments further illustrate the content of the invention, but the scope of protection of the present invention is not limited to the following embodiments. Numerous specific details are set forth in the following description to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details.

[0036] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0037] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0038] Example 1, see Figure 1-8 ;

[0039] A regional scanning dynamic laser bird deterrent device includes a laser emitting unit 1, a laser reflecting unit 2, a control module 3, a vision capturing unit 4, an isolation unit 5, and a functional unit 6. The laser reflecting unit 2 includes a reflective sphere 21 with three degrees of freedom controllable change, and the surface of the reflective sphere 21 is provided with several irregularly shaped high-reflectivity plane mirrors 211. The isolation unit 5 protects the laser reflecting unit 2 inside it. The top of the isolation unit 5 is a transparent hemispherical cover 51.

[0040] Inside the transparent hemispherical dome 51, with the reflective sphere 21 as the center, a plurality of laser emitting units 1 are arranged in a horizontal circular array; the functional unit 6 is fixedly fitted on the lower outer side of the isolation unit 5, the functional unit 6 has a hollow structure inside, and a battery 61 and a control module 3 are installed inside; the visual capture unit 4 is arranged in a horizontal circular array with the transparent hemispherical dome 51 as the center on the top outer side of the functional unit 6; the visual capture unit 4 is a thermal imaging visible light camera; the control module 3 is electrically connected to the laser emitting unit 1, the laser reflective unit 2, the visual capture unit 4 and the battery 61.

[0041] The isolation unit 5 forms a pressure-resistant cavity, with the reflective sphere 21 as the only movable component inside. Driven by three degrees of freedom, several irregularly shaped high-reflectivity plane mirrors 211 on the surface reflect the laser emitted by the laser emitting unit 1. The emission angle of the laser emitting unit 1 is fixed, and its incident angle is changed by the high-reflectivity plane mirrors 211, thereby affecting the change of its emission angle. Since the high-reflectivity plane mirrors 211 are fixedly set on the rotating reflective sphere 21, the several irregularly shaped high-reflectivity plane mirrors 211 are constantly changing. Within the range of angle changes, they continuously change their incident angle, thereby achieving the effect of area-changing scanning to drive away birds.

[0042] The laser reflection unit 2 further includes a servo cylinder 22, a support base 23, a rotating base 24, a first servo motor 25, a second servo motor 26, and a bracket 27. The servo cylinder 22 is fixedly mounted on the bottom of the isolation unit 5, and its power output end is fixedly connected to the support base 23. The bottom of the rotating base 24 is coaxially sleeved into the support base 23, and power isolation is achieved through two upper and lower rotating bearings 28. The first servo motor 25 is fixedly mounted on the support base 23, and the first servo motor 25 is connected to the rotating disk 241 above the rotating base 24. The reflective sphere 21 is rotatably mounted on the bracket 27 along the axis of the reflective sphere 21. The reflective sphere 21 is coaxially connected to the second servo motor 26 along its rotational mounting axis.

[0043] The laser reflecting unit 2 is integrated into the bottom of the isolation unit 5 in a coaxial nesting manner. A servo cylinder 22 at the bottom outputs vertical linear travel along the Z-axis. A support 23 fixedly connected to the servo cylinder 22 and a rotating seat 24 rotating relative to it mechanically decouple the vertical displacement freedom from the vertical rotational freedom. The inner cavity of the support 23 uses two tapered roller bearings 28 to provide radial and axial composite positioning for the rotating seat 24, achieving dynamic isolation of rotational and linear degrees of freedom. This ensures that the linear inertial force is not coupled to the horizontal rotational axis during cylinder lifting, thus maintaining the stable pointing of the reflector. When the laser reflecting unit 2 is working, the servo cylinder 22 drives the reflective sphere 21 into the transparent hemispherical cover 51. When the laser reflecting unit 2 is not working, the servo cylinder 22 drives the reflective sphere 21 into the light-shielding internal space at the bottom of the isolation unit 5, reducing the risk of birds adapting to continuous reflection of natural light.

[0044] The first servo motor 25 is fixedly mounted on the support base 23 and drives the rotating disk 241 on the rotating base 24 to rotate vertically through gear meshing. The reflective sphere 21 is mounted by the bracket 27 along the equatorial axis of the reflective sphere 21, so that the sphere can have free rotation space in the horizontal axis. The second servo motor 26 is directly embedded in the sphere shaft end. With the micro-angle increment of the disordered plane mirror surface of the sphere, a spatial laser angle jump can be quickly completed.

[0045] Furthermore, a hollow insulating support rod 231 is coaxially arranged inside the support base 23. Conductive slip rings 232 are respectively sleeved on the outer sides of the upper and lower parts of the hollow insulating support rod 231. The two conductive slip rings 232 are insulated and isolated by an insulating isolation block 233. The two conductive slip rings 232 are electrically connected to the lower conductive terminal 234 on the support base 23 through wires inside the hollow insulating support rod 231. A pair of corresponding carbon brush holders 242 are arranged on the inner side of the rotating base 24 opposite to the two conductive slip rings 232. A conductive spring 243 is arranged inside the carbon brush holder 242. One end of the conductive spring 243 is electrically connected to the conductive slip ring 232 through the conductive carbon brush 244, and the other end is electrically connected to the upper conductive terminal 245 at the end of the carbon brush holder 242. The second servo motor 26 obtains power from the storage battery 61 through the lower conductive terminal 234 and the upper conductive terminal 245.

[0046] The entire laser reflection unit is enclosed inside the isolation unit. The power supply of the second servo motor 26 is completed through the upper conductive terminal 245, the double conductive slip ring-carbon brush in the hollow insulating support rod 231, and the lower conductive terminal 234 connected to the battery 61. This enables 360° continuous rotation without the need for an external drag chain, eliminating the risk of cable entanglement failure. Ultimately, the laser beam can continuously scan the area of ​​birds with irregular trajectories at a millisecond rate by adjusting the different motion speeds of the three degrees of freedom, achieving the bird-repelling effect of targeted area scanning and frightening. The second servo motor 26 can be connected to the control module 3 via wireless signal transmission.

[0047] The functional unit 6 is a geometric configuration with a smaller top and a larger bottom, formed by combining two regular hexagons of different sizes and six isosceles trapezoids. The isolation unit 5 is coaxially nested inside the functional unit 6. A flange fixing plate 62 is fixedly installed at the bottom of the functional unit 6. Photovoltaic cells 63 are fixedly installed on the outer surfaces of the six isosceles trapezoids of the functional unit 6, and the photovoltaic cells 63 are electrically connected to the battery 61.

[0048] Functional unit 6 adopts a truncated hexagonal frustum configuration formed by a small upper regular hexagon, a large lower regular hexagon, and six isosceles trapezoids, coaxially enclosing isolation unit 5 in the center to form a rigid shell that continuously expands from top to bottom. The six trapezoidal inclined surfaces form an angle of 30-60 degrees with the horizontal plane, which not only constitutes a stable beam-like rib plate in terms of mechanics, increasing the overall bending modulus compared to a cylindrical shell of the same mass, but also provides the optimal tilt angle for the photovoltaic panel in terms of optics. The photovoltaic cells 63 are directly bonded to the outer surface of the trapezoids, and the power generation curve naturally overlaps with the high power consumption period of the laser (peak daytime bird damage), reducing the number of deep cycle times of the battery. An integrally machined flange mounting plate 62 extends from the bottom of the shell, establishing a stable connection with suitable fixed objects in the converter station to ensure that the pointing accuracy of the reflector sphere 21 is not affected by tower swaying.

[0049] On the reflective sphere 21, a light-absorbing isolation region 212 is provided at the connection between adjacent high-reflectivity plane mirrors 211. The light-absorbing isolation region 212 is composed of one or more of carbon nanotube materials, carbon black, and black resin coating. On the surface of the reflective sphere 21, a light-absorbing isolation region 212 is reserved between adjacent high-reflectivity plane mirrors 211. A light-absorbing material is coated in the light-absorbing isolation region 212, which increases the spectral absorption rate and reduces the mirror reflectivity of this area under laser irradiation. This dissipates any laser energy that escapes into the groove due to the rounded corners of the mirror edge or the deviation of the incident angle into heat in one go, avoiding re-scattering and the formation of pseudo-spots. Most importantly, when the reflective sphere 21 jumps at high speed, the light-absorbing isolation zone 212 can instantly cut off the optical crosstalk between adjacent mirrors, causing the laser beam to combine with the irregular shape of the high-reflectivity plane mirror 211 to present a random flashing state of bright-dark-bright in space. As a result, the spatiotemporal frequency of the light spot received by the bird's retina becomes disordered and cannot form an adaptation, fundamentally eliminating the drawbacks of the bird's improved adaptability, enhancing the frightening effect, and making it more conducive to achieving a long-term bird-repelling effect.

[0050] Example 2, see Figure 9-10 ,

[0051] A method for regional scanning dynamic laser bird deterrence includes the following steps;

[0052] The visual capture unit 4 radiates outward from itself, equally dividing the surrounding three-dimensional space into several three-dimensional fan-shaped regions, each corresponding to a laser emitting unit 1. The control module 3 continuously acquires video streams from these three-dimensional fan-shaped regions through the visual capture unit 4, reading each frame of the video stream. A spatial coordinate system is established by the visual capture unit 4 radiating outward from itself, equally dividing the three-dimensional space into several three-dimensional fan-shaped regions corresponding one-to-one with the laser emitting units 1. This gives each camera a fixed field of view and a number, forming a pixel-spatial angle mapping table. The control module 3 synchronously reads all sector video streams, using hardware timestamps to align multi-frame data, ensuring no time drift in subsequent differential operations and providing a synchronization benchmark for frame comparison. This shifts the traditional centralized processing mode from the backend server to the edge, reducing uplink bandwidth and lowering the latency of subsequent AI annotation and laser triggering commands.

[0053] The control module 3 detects the areas where birds appear by comparing differences in consecutive frame images and using AI annotations. It determines the approximate distance between birds by the continuous area occupied by birds appearing simultaneously in different areas, and determines the number of birds by the number of independent areas occupied by each bird in different regions. First, it quickly extracts motion connected components using frame difference analysis, then uses an AI model to perform secondary classification of these components, eliminating false alarms such as plastic bags and reflective films. Next, it estimates the distance based on the proportion of continuous area occupied by birds in adjacent sectors; a larger area indicates a closer distance, and vice versa. Finally, it counts the number of birds based on the number of independent connected components, with each bird forming an independent outline in the image. This technology converts two-dimensional pixel measurement into three-dimensional spatial semantics, achieving dual-dimensional perception of distance and quantity without the need for depth cameras or millimeter-wave radar. It upgrades traditional blind scanning for bird deterrence with precise targeting, reduces some ineffective light emission, and extends the battery life of photovoltaic autonomous systems.

[0054] Once a bird enters the visual detection range, control module 3 formulates a corresponding laser deterrence plan based on the analysis results and sends action commands to laser emitting unit 1 and laser reflecting unit 2. Using a two-dimensional decision matrix of distance and quantity, the bird threat is divided into three levels, each corresponding to a different subsequent laser strategy, enabling differentiated strikes such as long-range warning deterrence for a single bird, close-range interception deterrence for a single bird, and comprehensive deterrence of flocks of birds. After determining the threat level, the control module directly sends parameter commands to laser emitting unit 1 and laser reflecting unit 2.

[0055] If a bird appears in a single area or two consecutive areas, occupying a continuous area in the image, it is determined that a single bird is approaching from a distance. The control module 3 sends an action command to the laser emitting unit 1 and the laser reflecting unit 2. The laser emitting unit 1 in the corresponding area and the laser emitting unit 1 in the adjacent area are activated simultaneously, randomly emitting red or green lasers that are reflected by the laser reflecting unit 2 and directed towards the bird's activity area and adjacent areas. For single birds at a distance, a dual laser screen is used to cross-illuminate the area and the adjacent area. The reflecting sphere rotates periodically, weaving the two laser fan screens into a sweeping light curtain in the air. Since distant birds are highly sensitive to green light, this strategy can form a visual barrier without increasing power consumption, reducing power consumption and avoiding the risk of glare to personnel inside the station due to excessively strong light spots. Random switching of red and green wavelengths further disrupts the bird's visual adaptation rhythm, achieving continuous repulsion.

[0056] If birds appear simultaneously in more than two consecutive areas, occupying a continuous area in the image, it is determined that a single bird is rapidly approaching at close range. Control module 3 then sends an action command to laser emitting unit 1 and laser reflecting unit 2. All laser emitting units 1 corresponding to all areas simultaneously activate, randomly emitting red or green laser light, immediately initiating a full-power, full-area scanning mode. The light is reflected by laser reflecting unit 2 and illuminates the entire area surrounding the bird's activity. At this time, all laser emitting units 1 are outputting at full power, the rotation speed of the reflecting sphere 21 increases, rapidly forming random light spots and creating a circumferential laser beam scan, expanding the traditional single-point beam into a three-dimensional light field. This forces birds away from the area, significantly reducing the probability of bird interference affecting the safe operation of the converter station.

[0057] If birds appear in multiple areas and exist as independent points in the image, it is determined that a flock of birds is approaching. The control module 3 sends action commands to the laser emitting unit 1 and the laser reflecting unit 2. The laser emitting unit 1 corresponding to all areas is activated simultaneously, randomly emitting red or green lasers that are reflected by the laser reflecting unit 2 and irradiate the bird activity area and adjacent areas. When faced with a multi-point distribution of bird flocks, the system no longer pursues single-spot tracking. Instead, it utilizes the rapid transitions of several disordered mirror surfaces of the reflective sphere 21 to flash red and green lasers at random frequencies (achieved by changing the time it takes for the laser to pass through the light-absorbing isolation zone 212), forming a dual stress response of color and frequency. At the same time, a flashing scanning light curtain covering the hemisphere is generated. Utilizing the bird flock alertness effect, any individual startled can trigger the entire flock to turn away, achieving a multiplied deterrent efficiency by scaring away a group.

[0058] During bird migration seasons, the laser reflection unit 2 is randomly raised and lowered by the servo cylinder 22, causing the reflective sphere 21 to irregularly reflect external natural light at irregular intervals, forming flickering light spots. A natural light interference mechanism is introduced during bird migration. The servo cylinder 22 raises the reflective sphere 21 to different random heights within the transparent hemispherical cover 51. The first servo motor 25 and the second servo motor 26 rotate randomly at low power, causing the reflective sphere 21 to intermittently reflect sunlight into the air, forming random flickering light spots. Because these light spots lack the high power of a laser, they possess the same disordered spatial light transitions, which can frighten birds with good vision from a distance. Without increasing the number of laser emission times, this continuously maintains the birds' alertness and avoidance behavior, ensuring a high deterrent rate even during peak migration periods. Simultaneously, the actual laser emission decreases, further extending the photovoltaic autonomous power cycle.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A method for regional scanning dynamic laser bird deterrence, characterized in that: Includes the following steps; S1. The visual capture unit radiates outward from itself, dividing the surrounding three-dimensional space into several three-dimensional fan-shaped areas, each corresponding to a laser emission unit. The control module constantly acquires the video stream of several three-dimensional fan-shaped areas through the visual capture unit and reads each frame of the video stream. S2. The control module detects the areas where birds appear by comparing the differences between consecutive frame images and using AI annotations. The distance between birds can be determined by the continuous area occupied by birds appearing simultaneously in different areas of the image; the number of birds can be determined by the area occupied by birds appearing separately in different areas of the image. S3. When a bird enters the visual capture range, the control module formulates a corresponding laser drive-away plan based on the analysis results and sends action commands to the laser emitting unit and the laser reflecting unit. S31. If a bird appears in a single area or two consecutive areas and occupies a continuous area in the image, it is determined that a single bird is approaching from a distance. The control module sends an action command to the laser emitting unit and the laser reflecting unit. The laser emitting unit in the corresponding area and the laser emitting unit in the adjacent area are activated simultaneously, randomly emitting red or green lasers that are reflected by the laser reflecting unit and irradiate the bird's activity area and the adjacent area. S32. If a bird appears simultaneously in more than two consecutive areas and occupies a continuous area in the image, it is determined that a single bird is approaching at close range. The control module sends an action command to the laser emitting unit and the laser reflecting unit. The laser emitting units corresponding to all areas are activated simultaneously, randomly emitting red or green lasers that are reflected by the laser reflecting unit and irradiate the bird's activity area and adjacent areas. S33. If birds appear in multiple areas and exist in independent areas with multiple points distributed in the image, it is determined that the flock of birds is approaching. The control module sends an action command to the laser emitting unit and the laser reflecting unit. The laser emitting units corresponding to all areas are activated simultaneously, randomly emitting red or green lasers that are reflected by the laser reflecting unit and irradiate the bird activity area and adjacent areas.

2. A regional scanning dynamic laser bird deterrent device, implemented using the bird deterrent method described in claim 1, characterized in that: It includes a laser emitting unit, a laser reflecting unit, a control module, a vision capturing unit, an isolation unit, and a functional unit; the laser reflecting unit includes a three-degree-of-freedom controlled reflecting sphere, the surface of which is provided with several irregularly shaped high-reflectivity plane mirrors; the isolation unit protects the laser reflecting unit inside it; The top of the isolation unit is a transparent hemispherical dome; inside the transparent hemispherical dome, with the reflective sphere as the center, there are several laser emitting units arranged in a horizontal circular array; the functional unit is fixedly fitted on the lower outer side of the isolation unit, and the functional unit has a hollow structure inside, housing a battery and a control module; the visual capture units are arranged in a horizontal circular array uniformly around the transparent hemispherical dome on the top outer side of the functional unit; the control module is electrically connected to the laser emitting units, laser reflective units, visual capture units, and battery.

3. The area scanning dynamic laser bird deterrent device according to claim 2, characterized in that: The laser reflection unit further includes a servo cylinder, a support base, a rotating base, a first servo motor, a second servo motor, and a bracket. The servo cylinder is fixedly mounted on the bottom of the isolation unit, and its power output end is fixedly connected to the support base. The bottom of the rotating base is coaxially fitted into the support base, and power isolation is achieved through two upper and lower rotating bearings. The first servo motor is fixedly mounted on the support base, and the first servo motor is drivenly connected to a rotating disk above the rotating base. The reflective sphere is rotatably mounted on the bracket along the axis of the reflective sphere. The reflective sphere is coaxially drivenly connected to the second servo motor along its rotational mounting axis.

4. The area scanning dynamic laser bird deterrent device according to claim 3, characterized in that: A hollow insulating support rod is coaxially arranged inside the support base. Conductive slip rings are respectively fitted onto the outer sides of the upper and lower parts of the hollow insulating support rod, and the two conductive slip rings are insulated from each other by an insulating isolation block. The two conductive slip rings are electrically connected to the lower conductive terminal on the support base via wires inside the hollow insulating support rod. A pair of corresponding carbon brush holders are arranged on the inner side of the rotating base, opposite to the two conductive slip rings. A conductive spring is installed inside each carbon brush holder. One end of the conductive spring is electrically connected to the conductive slip ring via a conductive carbon brush, and the other end is electrically connected to the upper conductive terminal at the end of the carbon brush holder. The second servo motor receives power through the lower and upper conductive terminals.

5. The area scanning dynamic laser bird deterrent device according to claim 2, characterized in that: The functional unit is a geometric configuration with a smaller top and a larger bottom, composed of two regular hexagons of different sizes and six isosceles trapezoids; the isolation unit is coaxially nested inside the functional unit; and a flange fixing plate is fixedly installed at the bottom of the functional unit.

6. The area scanning dynamic laser bird deterrent device according to claim 5, characterized in that: Photovoltaic cells are fixedly mounted on the outer surfaces of the six isosceles trapezoids of the functional unit, and the photovoltaic cells are electrically connected to the storage battery.

7. The area scanning dynamic laser bird deterrent device according to claim 2, characterized in that: On the reflective sphere, a light-absorbing isolation zone is provided at the connection between adjacent highly reflective plane mirrors.

8. The area scanning dynamic laser bird deterrent device according to claim 7, characterized in that: The light-absorbing isolation zone is composed of one or more of carbon nanotube materials, carbon black, and black resin coatings.

9. A regional scanning dynamic laser bird deterrent device according to claim 7, characterized in that: The visual capture unit is a thermal imaging visible light camera.

Images