Bird repelling method and device based on laser curtain and storage medium

Abstract

The application relates to the technical field of iron tower protection, and discloses a bird repelling method and device based on a laser light curtain and a storage medium, the method comprising the following steps: determining a three-dimensional space to be protected on a high-voltage iron tower, a configuration position and a configuration quantity of a laser device; determining a horizontal deflection amplitude range and a vertical deflection amplitude range of each laser device; generating a horizontal random driving parameter corresponding to the horizontal deflection amplitude range and generating a vertical random driving parameter corresponding to the vertical deflection amplitude range; performing sensing adjustment on the horizontal random driving parameter and the vertical random driving parameter based on environmental brightness information to generate an adjusted driving parameter; processing parallel laser beams based on the horizontal deflection amplitude range, the vertical deflection amplitude range and the adjusted driving parameter to generate a dynamic random scanning light beam; and generating a dynamic bird repelling light curtain based on the dynamic random scanning light beam. The realization mode of the laser is adjusted, a dynamic light curtain without rules is realized, and the laser bird repelling effect is improved.

Description

Technical Field

[0001] This invention relates to the field of tower protection technology, specifically to a bird-repelling method, device, and storage medium based on a laser light curtain. Background Technology

[0002] The operational stability of high-voltage transmission lines is directly related to the safety performance of the power grid. As a critical infrastructure of the power grid, high-voltage towers are located in the natural environment for extended periods. Frequent roosting and activity of birds in areas such as tower crossarms and insulator mounting points have become a core risk factor for flashover accidents. In particular, the continuous accumulation of bird droppings on the surface of insulators can significantly degrade insulation strength, making them highly susceptible to flashover faults under humid weather conditions, seriously threatening the operational safety of power facilities and the quality of power supply.

[0003] To address the threat of bird damage, laser bird deterrence technology has become a key research focus in the field of power protection due to its non-contact interference and long-range deterrence capabilities. This technology primarily works by creating a laser coverage area within the protected zone to simulate visual obstruction. It leverages birds' instinctive fear of moving light spots to force them to change their flight paths or landing locations, thereby achieving proactive defense of critical power facilities.

[0004] However, traditional fixed laser bird deterrent devices have limited laser beam coverage and exhibit significant static characteristics. After a short period of physiological adaptation, birds can often avoid the beam by adjusting their flight paths or finding blind spots, causing the protective effectiveness to rapidly decline over time. Furthermore, traditional mechanical scanning laser devices suffer from extremely high overall power consumption, large size, and their precision moving parts are prone to mechanical wear in complex field conditions, making it difficult to achieve long-term maintenance-free operation in harsh environments such as high-voltage power towers that rely on renewable energy sources. In addition, the scanning logic of existing technologies often lacks the ability to dynamically change spatially, failing to create continuous visual coverage and achieving seamless shielding and deep deterrence over the entire airspace above insulators. Summary of the Invention

[0005] In order to overcome the above-mentioned technical problems in the prior art, the present invention provides a method, device and storage medium for bird repelling based on laser light curtain. By adjusting the realization method of laser on the basis of traditional laser bird repelling device, an irregular dynamic light curtain is realized, thereby improving the effect of laser bird repelling.

[0006] To achieve the above objectives, embodiments of the present invention provide a bird-repelling method based on a laser light curtain. The method is applied to a laser device configured on a high-voltage tower to be protected, used to generate parallel laser beams. The method includes: determining the three-dimensional space to be protected on the high-voltage tower, and the configuration position and number of laser devices; determining the horizontal deflection amplitude range and vertical deflection amplitude range of each laser device based on the three-dimensional space to be protected, the configuration position, and the number of devices; generating horizontal random driving parameters corresponding to the horizontal deflection amplitude range, and generating vertical random driving parameters corresponding to the vertical deflection amplitude range; acquiring ambient brightness information, and perceptually adjusting the horizontal and vertical random driving parameters based on the ambient brightness information to generate adjusted driving parameters; processing the parallel laser beams based on the horizontal and vertical deflection amplitude ranges and the adjusted driving parameters to generate dynamic random scanning beams, wherein the dynamic random scanning beams generated by all laser devices dynamically cover the three-dimensional space to be protected; and generating a dynamic bird-repelling light curtain based on the dynamic random scanning beams.

[0007] Preferably, the method further includes: after generating the dynamic random scanning beam, obtaining the real-time power value of the dynamic random scanning beam and obtaining the real-time ambient temperature value; determining whether the real-time power value decreases as the real-time ambient temperature value increases; if so, determining a preset power threshold and a power density requirement; linearly increasing the output power of the laser device based on the power density requirement, wherein the output power is less than or equal to the preset power threshold.

[0008] Preferably, the step of linearly increasing the output power of the laser device based on the power density requirement includes: acquiring ambient humidity data; determining the atmospheric extinction coefficient based on the ambient humidity data; acquiring the transmission distance, beam waist radius, and far-field divergence angle of the laser device to the three-dimensional space to be protected; and determining the target power based on the power density requirement, the atmospheric extinction coefficient, the transmission distance, the beam waist radius, the far-field divergence angle, and a preset laser power density calculation formula, wherein the preset laser power density calculation formula is characterized as follows:

[0009]

[0010] in, For the target power, Where L is the atmospheric extinction coefficient and L is the transmission distance. The waist radius is The far-field divergence angle is determined by linearly increasing the output power of the laser device based on the target power.

[0011] Preferably, the laser device includes a collimating lens group, and the method further includes: acquiring the transmission distance in real time before generating the dynamic random scanning beam; determining the current spot diameter based on the transmission distance; acquiring the target spot diameter; adjusting the lens spacing in the collimating lens group based on the current spot diameter and the target spot diameter to obtain the adjusted lens spacing; and controlling the laser device to output a dynamic bird-repelling light curtain corresponding to the target spot diameter at different transmission distances based on the adjusted lens spacing.

[0012] Preferably, generating horizontal random drive parameters corresponding to the horizontal deflection amplitude range and vertical random drive parameters corresponding to the vertical deflection amplitude range includes: determining a first drive frequency for the horizontal deflection amplitude range and a second drive frequency for the vertical deflection amplitude range; generating a first random number corresponding to the horizontal deflection amplitude range and a second random number corresponding to the vertical deflection amplitude range at preset time intervals; determining a first initial phase of the horizontal deflection amplitude range based on the first random number and determining a second initial phase of the vertical deflection amplitude range based on the second random number; generating horizontal random drive parameters based on the first drive frequency and the first initial phase, and generating vertical random drive parameters based on the second drive frequency and the second initial phase.

[0013] Preferably, the method further includes: acquiring a preset rotational cutting visual effect; determining corresponding visual stripe parameters and angular velocity based on the preset rotational cutting visual effect; adjusting the second driving frequency and the second initial phase based on the visual stripe parameters and the angular velocity to generate an adjusted frequency and an adjusted phase; and generating adjusted vertical random driving parameters based on the adjusted frequency and the adjusted phase.

[0014] Preferably, the method further includes: obtaining an initial self-similar model; generating a fractal trajectory based on the initial self-similar model; generating a scan coordinate sequence based on the fractal trajectory; and adjusting the horizontal random driving parameter and the vertical random driving parameter based on the scan coordinate sequence to generate adjusted horizontal random driving parameters and adjusted vertical random driving parameters.

[0015] Preferably, the step of perceptually adjusting the horizontal and vertical random drive parameters based on the ambient brightness information to generate adjusted drive parameters includes: acquiring the correspondence between bird activity intensity and different time periods; determining the current time period based on the ambient brightness; determining whether the current bird activity intensity reaches a preset intensity threshold based on the correspondence and the current time period; if so, determining a preset scaling range; determining the corresponding low-frequency amplitude modulation parameter based on the preset scaling range; and adjusting the horizontal and vertical random drive parameters based on the low-frequency amplitude modulation parameter to generate adjusted drive parameters.

[0016] Accordingly, the present invention also provides a bird-repelling device based on a laser light curtain, characterized in that the device comprises: an information determination unit, used to determine the three-dimensional space to be protected on the high-voltage tower, and the configuration position and number of the laser devices; a deflection unit, used to determine the horizontal deflection amplitude range and vertical deflection amplitude range of each laser device based on the three-dimensional space to be protected, the configuration position, and the number of devices; a random parameter generation unit, used to generate horizontal random driving parameters corresponding to the horizontal deflection amplitude range, and to generate vertical random driving parameters corresponding to the vertical deflection amplitude range; an adjustment unit, used to acquire ambient brightness information, and to perform perceptual adjustment on the horizontal random driving parameters and the vertical random driving parameters based on the ambient brightness information, generating adjusted driving parameters; a beam generation unit, used to process the parallel laser beam based on the horizontal deflection amplitude range, the vertical deflection amplitude range, and the adjusted driving parameters to generate a dynamic random scanning beam, wherein the dynamic random scanning beams generated by all laser devices dynamically cover the three-dimensional space to be protected; and a light curtain generation unit, used to generate a dynamic bird-repelling light curtain based on the dynamic random scanning beams.

[0017] On the other hand, the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method provided in the embodiments of the present invention.

[0018] The present invention has at least the following technical effects through the technical solution provided by the present invention:

[0019] By deeply integrating high-frequency scanning technology with laser pulse modulation, a dynamic light and shadow effect with extremely high frequency flickering can be constructed in space. Since the scanning trajectory presents a non-periodic random change, it effectively interferes with the visual nervous system of birds. Birds cannot avoid the beam by adjusting their flight posture or landing angle, which fundamentally solves the technical problem that traditional fixed lasers are prone to causing birds to develop physiological adaptations.

[0020] By converting traditional point or line laser output into a spatial dynamic light curtain with a certain thickness and angle, this light curtain can seamlessly shield the entire airspace above key parts such as tower crossarms and insulator hanging points. Compared with traditional mechanical rotating scanning, the embodiments of the present invention not only eliminate scanning blind spots, but also create a visual sense of closeness through the oscillating sweep mode, greatly improving the deterrent effect in complex three-dimensional space.

[0021] By using a microcontroller unit to perform real-time logic control of the drive waveform and pulse parameters, differentiated protection strategies can be implemented based on the intensity of bird activity at different times. Based on intelligent algorithms for trajectory modulation and frequency modulation, a more scientific, efficient, and environmentally friendly bird control technology solution is provided for the power system.

[0022] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 A schematic flowchart of a bird-repelling method based on a laser light curtain, provided for an embodiment of the invention;

[0025] Figure 2 This is a schematic diagram of a bird deterrent device based on a laser light curtain, provided as an embodiment of the invention. Detailed Implementation

[0026] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0027] In this embodiment of the invention, the term "multiple" refers to two or more. Therefore, in this embodiment, "multiple" can also be understood as "at least two." "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / ", unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship. Furthermore, it should be understood that in the description of this embodiment of the invention, terms such as "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or order.

[0028] Please see Figure 1This invention provides a bird-repelling method based on a laser light curtain. The method is applied to a laser device, which is configured on a high-voltage tower to be protected, and is used to generate a parallel laser beam. The method includes:

[0029] S10, determine the three-dimensional space to be protected on the high-voltage tower, as well as the configuration location and quantity of the laser device;

[0030] S20, determine the horizontal deflection amplitude range and vertical deflection amplitude range of each laser device based on the three-dimensional space to be protected, the configuration position, and the configuration quantity;

[0031] S30, generate a horizontal random drive frequency corresponding to the horizontal deflection amplitude range and a vertical random drive frequency corresponding to the vertical deflection amplitude range;

[0032] S40, acquire ambient brightness information, and perform perceptual adjustment on the horizontal random drive frequency and the vertical random drive frequency based on the ambient brightness information to generate a perceptually adjusted drive frequency;

[0033] S50, the parallel laser beam is processed based on the horizontal deflection amplitude range, the vertical deflection amplitude range and the driving frequency after sensing and adjustment to generate a dynamic random scanning beam, and the dynamic random scanning beams generated by all laser devices dynamically cover the three-dimensional space to be protected.

[0034] S60, a dynamic bird-repelling light curtain is generated based on the dynamic random scanning beam.

[0035] In one possible implementation, the method described in this invention is applied to a protective device installed near the root of a crossarm or insulator hanging point on a transmission line tower. This protective device is, for example, a conventional laser device. The laser diode in this device generates a pulsed laser with a preset power and wavelength, and the beam divergence angle of the pulsed laser is compressed by a collimating lens group to form a parallel laser beam with a predetermined diameter, providing a point light source with high energy density. To achieve the best bird deterrence effect, in this embodiment of the invention, by studying the visually sensitive wavelengths of birds, a laser diode with a center wavelength of 520 nm is used to generate laser light of the corresponding wavelength. This wavelength falls within the sensitive peak range of bird visual perception, providing a strong visual stimulus to birds, causing them to fly away or develop a sense of danger. The collimating lens group, for example, consists of three aspherical optical glass lenses, each coated with an anti-reflective film, with a transmittance greater than 99.8% at a wavelength of 520 nm.

[0036] In the specific implementation process, the three-dimensional space to be protected on the high-voltage tower is first determined. For example, this three-dimensional space is the space where the insulator to be protected is located. Multiple laser devices are then placed nearby to generate a sufficient number of parallel laser beams to form a laser light curtain. However, in practical applications, conventional techniques using static methods are prone to allowing birds to find blind spots or discover patterns in the illumination and fly around them, greatly reducing the effectiveness of conventional laser irradiation.

[0037] To address the aforementioned technical issues, during the irradiation process, the horizontal and vertical deflection amplitude ranges of each laser device are further determined to control the dynamic laser beam generated by the laser device in the three-dimensional space to be protected. For example, a microelectromechanical system (MEMS) scanning component receives the parallel laser beam, and a high-frequency alternating electrical signal is input to the driving electrodes of the dual-axis MEMS micromirror via a microcontroller unit. This drives the mirror to reciprocate in both the horizontal and vertical axes, modulating the point laser beam into a dynamic scanning beam with two-dimensional coverage capability. For instance, in one embodiment, the mechanical deflection angle range of the horizontal axis is set to -15 degrees to +15 degrees, and the mechanical deflection angle range of the vertical axis is set to -10 degrees to +10 degrees. The micromirror is supported on a silicon frame by a torsion bar, and high-speed deflection of the mirror is achieved using torque generated by electrostatic attraction.

[0038] At this point, by controlling the amplitude, frequency, and phase difference of the driving voltage of the laser device, the scanning trajectory of the laser beam continuously changes within a preset three-dimensional spatial domain, thereby forming a dynamic light and shadow curtain with spatial depth in the bird's visual perception system. For example, the scanning frequency of the horizontal axis is set to 200Hz, and the scanning frequency of the vertical axis is set to 20Hz. However, in practical applications, if a fixed scanning frequency is used, birds will develop physiological tolerance after prolonged observation, thus reducing the actual protective effect of the laser curtain. To overcome the above technical problems, a horizontal random driving frequency and a vertical random driving frequency are generated. For example, an internal hardware random number generator is used to generate a jump sequence, and the driving frequency of the horizontal axis is set to jump between 180Hz and 220Hz using a pseudo-random sequence. The jump period is set to once every 10 seconds, and a smooth transition algorithm can be used for each jump to avoid mechanical impact on the micromirror torsion bar caused by sudden changes in driving voltage. Meanwhile, the driving frequency of the vertical axis jumps synchronously between 15Hz and 25Hz, causing the scanning trajectory formed by the laser spot to exhibit a highly complex and unpredictable distribution pattern in the phase space, thereby effectively overcoming the physiological tolerance of birds.

[0039] At this point, the laser beam forms a dense grid-like scanning pattern in space.

[0040] During implementation, on the one hand, birds may develop physiological tolerance to fixed-frequency laser beams; on the other hand, prolonged high-frequency laser irradiation generates significant energy consumption. Since laser devices are often installed on high-voltage towers, which are not conducive to daily maintenance, energy supply methods based on new energy sources (such as photovoltaic panels) are often adopted. Therefore, if the energy consumption is too high, it will not meet the actual needs, resulting in poor actual protection effects.

[0041] To address the aforementioned technical challenges, ambient light information is further acquired. For instance, when the light intensity is detected to be between 100 lux and 500 lux (corresponding to peak bird activity periods at dawn and dusk), it can be determined that the current phase is a high-intensity protection phase. At this time, the horizontal and vertical random drive frequencies are adjusted based on this ambient light information to generate a adjusted drive frequency, thereby improving the actual protection effect. Outside this range, the drive frequency of the laser beam is reduced to lower energy consumption while ensuring sufficient protection, thus effectively solving the energy consumption problem.

[0042] Finally, the parallel laser beam is processed according to the above-mentioned horizontal deflection amplitude range, vertical deflection amplitude range, and driving frequency after perception adjustment to generate a dynamic random scanning beam that can dynamically cover the three-dimensional space to be protected, and form a dynamic bird-repelling light curtain on the high-voltage tower to achieve a better bird-repelling effect.

[0043] In this embodiment of the invention, through deep collaboration of the hardware system and dynamic modulation of the software algorithm, a highly deterrent three-dimensional dynamic light and shadow curtain is constructed in the target three-dimensional space, achieving efficient and effective deterrence of birds. At the same time, energy consumption is greatly optimized according to the actual situation, ensuring the feasibility of the technical solution, improving the service life of high-voltage components such as insulators, reducing maintenance frequency and workload, and meeting the actual needs of enterprises.

[0044] In practical applications, high-voltage towers are often located in the wild, such as forests, hills, and mountains. The meteorological environment in these locations is often quite complex. In the actual application of laser devices, due to the presence of scattering media such as fog and raindrops in the wild environment, the energy attenuation of the laser during transmission is uncertain, which will reduce the actual effect of the laser light curtain.

[0045] To address the aforementioned technical problems, in this embodiment of the invention, the method further includes: after generating the dynamic random scanning beam, obtaining the real-time power value of the dynamic random scanning beam and obtaining the real-time ambient temperature value; determining whether the real-time power value decreases as the real-time ambient temperature value increases; if so, determining a preset power threshold and a power density requirement; linearly increasing the output power of the laser device based on the power density requirement, wherein the output power is less than or equal to the preset power threshold.

[0046] In one possible implementation, the power output of the laser device is monitored in real time, along with the ambient temperature, for example, using a conventional temperature sensor. The system then determines whether the power output decreases as the ambient temperature increases. If so, it indicates that the ambient temperature is affecting the actual light curtain effect of the laser device. Therefore, a closed-loop control circuit is immediately used to linearly increase the drive current within a safe threshold, ensuring that the laser power density reaching the insulator area remains above a preset protection strength standard. Specifically, a preset power threshold and power density requirement are first determined. Then, the output power of the laser device is linearly increased according to this power density requirement, where the output power of the laser device should be less than or equal to the preset power threshold to ensure the safety of the laser device and the controllability of energy consumption.

[0047] In this embodiment of the invention, a feedback mechanism is introduced to monitor the actual output power of the laser device. Once it is found that the output of the laser device is affected by the environment, the output of the laser device is immediately adjusted accordingly while ensuring safety, thereby ensuring the effect of the actual laser light curtain and guaranteeing the actual effect of bird deterrence.

[0048] In this embodiment of the invention, the step of linearly increasing the output power of the laser device based on the power density requirement includes: acquiring ambient humidity data; determining the atmospheric extinction coefficient based on the ambient humidity data; acquiring the transmission distance, beam waist radius, and far-field divergence angle of the laser device to the three-dimensional space to be protected; and determining the target power based on the power density requirement, the atmospheric extinction coefficient, the transmission distance, the beam waist radius, the far-field divergence angle, and a preset laser power density calculation formula, wherein the preset laser power density calculation formula is characterized as follows:

[0049]

[0050] in, For the target power, Where L is the atmospheric extinction coefficient and L is the transmission distance. The waist radius is The far-field divergence angle is determined by linearly increasing the output power of the laser device based on the target power.

[0051] In one possible implementation, an atmospheric model can be pre-configured in the control unit, and the power density can be calculated. Specifically, ambient humidity data is first acquired, and then the corresponding atmospheric extinction coefficient is estimated based on the ambient humidity data. For example, in this embodiment of the invention, a formula for calculating laser power density is pre-configured in the control unit. Using this formula, combined with the estimated atmospheric extinction coefficient, and parameters such as the acquired transmission distance, beam waist radius, and far-field divergence angle, the target power is calculated. This preset laser power density is characterized, for example, as follows:

[0052]

[0053] in, For the target power, Where L is the atmospheric extinction coefficient and L is the transmission distance. The waist radius is Far-field scattering;

[0054] Finally, based on the actual deflection angle of the laser device (i.e., the transmission distance from the three-dimensional space to be protected) and the actual output parameters, a precise adjustment strategy is adopted to ensure that the output laser beams have the required shape and density, thus ensuring the reliability of the generated laser light curtain.

[0055] In practical applications, power transmission towers are often quite large, so the insulators and other components that need to be protected on them often have a large span. For example, in the case of a long-span tower, the length of the insulator string increases and the surrounding airspace is more open. If the distance between the insulator and the laser device is too far during the dynamic scanning process, the geometric structure of the laser light curtain will be deformed and unable to fully cover the tower, or the energy will be reduced over long distances. This allows birds to avoid or adapt to the laser light curtain, reducing the actual protection effect on the insulators and other components.

[0056] In this embodiment of the invention, the laser device includes a collimating lens group, and the method further includes: acquiring the transmission distance in real time before generating the dynamic random scanning beam; determining the current spot diameter based on the transmission distance; acquiring the target spot diameter; adjusting the lens spacing in the collimating lens group based on the current spot diameter and the target spot diameter to obtain the adjusted lens spacing; and controlling the laser device to output a dynamic bird-repelling light curtain corresponding to the target spot diameter at different transmission distances based on the adjusted lens spacing.

[0057] In one possible implementation, during the generation of the laser light curtain, the lenses in the collimating lens group are dynamically adjusted to achieve an optical zoom effect. Specifically, for example, a miniature piezoelectric motor is configured at the bottom of the translation lens in the collimating lens group to drive it. When the length of the insulator string is detected to be too large, for example, by obtaining the transmission distance and determining the current spot diameter based on the transmission distance, if the deviation between the current spot diameter and the target spot diameter is too large, it indicates that the current transmission distance is too large and the spot diameter needs to be adjusted. For example, when targeting a distant target (such as the end of an insulator 30 meters away), the beam divergence angle can be reduced to maintain the central light intensity; when targeting a close target, the spot size can be appropriately increased to expand the area swept by a single laser point per unit time.

[0058] In this embodiment of the invention, by employing optical zoom technology, the laser device can dynamically compensate and adjust according to the actual laser output effect. When the laser device scans to a distant insulator string, the dynamic bird-repelling light curtain it generates can also completely cover the corresponding component, ensuring that the laser light curtain can maintain the best visual deterrent effect at different depths of field, achieving reliable bird-repelling and protective effects, and meeting actual needs.

[0059] In this embodiment of the invention, generating horizontal random drive parameters corresponding to the horizontal deflection amplitude range and vertical random drive parameters corresponding to the vertical deflection amplitude range includes: determining a first drive frequency for the horizontal deflection amplitude range and a second drive frequency for the vertical deflection amplitude range; generating a first random number corresponding to the horizontal deflection amplitude range and a second random number corresponding to the vertical deflection amplitude range at preset time intervals; determining a first initial phase of the horizontal deflection amplitude range based on the first random number and determining a second initial phase of the vertical deflection amplitude range based on the second random number; generating horizontal random drive parameters based on the first drive frequency and the first initial phase, and generating vertical random drive parameters based on the second drive frequency and the second initial phase.

[0060] In one possible implementation, the scanning frequency of the laser device is not simply randomly generated during the random light curtain generation process. To further overcome the adaptability of birds to the laser light curtain, the phase of the driving signal driving the laser device is also randomly processed. Specifically, the driving signal generated by the control unit includes a high-frequency sine wave and / or a low-frequency sawtooth wave. The frequency of the horizontal axis driving signal is set to a first driving frequency, and the frequency of the vertical axis driving signal is set to a second driving frequency. Through the superposition of this frequency combination, the laser beam forms a dense grid-like scanning pattern in space.

[0061] At this time, a set of random numbers is generated every preset time period (e.g., 300s) to adjust the initial phase of the sine wave and the sawtooth wave, thereby randomly changing in both the driving frequency and the initial phase. The scanning trajectory of the laser beam continuously changes in the preset three-dimensional spatial domain, ultimately generating a non-periodic dynamic light curtain. This allows the scanning pattern to switch irregularly between rectangular, circular, Lissajous, and figure-eight trajectories. For example, the control unit integrates a graphics library that stores 32 basic scanning operators. By randomly combining operator sequences, it is ensured that the scanning pattern does not repeat within a certain time, thereby forming a non-periodic dynamic light and shadow barrier with spatial depth in the bird's visual perception system, completely avoiding the bird's adaptation and achieving a long-term bird-repelling and protective effect.

[0062] In practical applications, simply making the effect of the laser light curtain random only overcomes the birds' adaptability to random laser light curtains. However, we can further process the random laser light curtain effect by taking advantage of birds' fear of predators and natural dangers, so as to improve its actual bird-repelling effect.

[0063] In this embodiment of the invention, the method further includes: acquiring a preset rotational cutting visual effect; determining corresponding visual stripe parameters and angular velocity based on the preset rotational cutting visual effect; adjusting the second driving frequency and the second initial phase based on the visual stripe parameters and the angular velocity to generate an adjusted frequency and an adjusted phase; and generating adjusted vertical random driving parameters based on the adjusted frequency and the adjusted phase.

[0064] In the first embodiment, a preset rotational cutting visual effect is first determined. For example, the number of visual stripes, the type of visual stripes, the direction of rotation, and the angular velocity of rotation can be determined according to the way birds feel fear. Then, the second driving frequency and the second initial phase are adjusted according to the visual stripe parameters and the angular velocity to generate the adjusted frequency and the adjusted phase. For example, alternating bright and dark visual stripes are generated on the vertical axis of the light curtain. These stripes rotate at a preset angular velocity to simulate a "rotational cutting" visual illusion.

[0065] In this embodiment of the invention, by further adding a depth modulation dimension to the non-periodic dynamic light and shadow barrier, the visual complexity of the light curtain is increased, making it a dynamic volume with a sense of depth in the visual imaging of birds, which can take advantage of birds' avoidance of natural dangers to cause them panic, thereby achieving a better bird-repelling effect. It can not only block birds outside the dynamic light curtain, but also make them dare not approach or accelerate away, thus meeting the actual needs of enterprises.

[0066] In the process of randomly adjusting the non-periodic dynamic light curtain, the traditional random library calling method is used. Although this method achieves a certain degree of randomness based on the entire random library, birds may still find certain repetitive patterns after a long time and thus take corresponding avoidance actions. In order to get rid of this problem, a self-similar model can be used to generate long-term irregular random changes, completely eliminating the possibility of scanning patterns being recognized by birds.

[0067] In this embodiment of the invention, the method further includes: obtaining an initial self-similar model; generating a fractal trajectory based on the initial self-similar model; generating a scan coordinate sequence based on the fractal trajectory; and adjusting the horizontal random driving parameter and the vertical random driving parameter based on the scan coordinate sequence to generate adjusted horizontal random driving parameters and adjusted vertical random driving parameters.

[0068] In the second embodiment, an initial self-similar model is first obtained. This initial self-similar model includes, but is not limited to, simplified models of L-systems or Mandelbrot sets. For example, the control unit generates a scan coordinate sequence based on the aforementioned initial self-similar model, and then adjusts the horizontal and vertical random drive parameters to generate adjusted horizontal and vertical random drive parameters. In the subsequent generation of the laser light curtain, a laser light curtain with self-similarity and infinite complexity can be generated, appearing as ordered geometric shapes macroscopically and constantly changing details microscopically. When the laser beam moves along a fractal trajectory, its velocity and acceleration exhibit nonlinear changes, simulating the movement characteristics of a predator. This can utilize birds' fear of predators to force them to accelerate away from the protected three-dimensional space. Experimental data shows that this dynamic trajectory, simulated based on natural laws, has a more lasting deterrent effect on large birds with higher intelligence, effectively preventing them from developing behavioral adaptations.

[0069] In this embodiment of the invention, by further utilizing birds' natural tendency to avoid biological predators, a non-periodic dynamic light curtain with similar characteristics is generated, thereby achieving a better bird-repelling effect.

[0070] In this embodiment of the invention, the step of perceptually adjusting the horizontal random drive parameters and the vertical random drive parameters based on the ambient brightness information to generate adjusted drive parameters includes: obtaining the correspondence between bird activity intensity and different time periods; determining the current time period based on the ambient brightness; determining whether the current bird activity intensity reaches a preset intensity threshold based on the correspondence and the current time period; if so, determining a preset scaling range; determining the corresponding low-frequency amplitude modulation parameter based on the preset scaling range; and adjusting the horizontal random drive parameters and the vertical random drive parameters based on the low-frequency amplitude modulation parameter to generate adjusted drive parameters.

[0071] In one possible implementation, to further enhance the deterrent effect of the laser light curtain on birds, different light curtain display effects can be adopted according to the activity intensity of the birds. Specifically, the correspondence between the activity intensity of birds and different time periods is first obtained. For example, in this embodiment of the invention, the technicians pre-determine the activity intensity of birds in different time periods based on the ambient brightness (corresponding to different time periods of the day). Then, in the subsequent laser light curtain generation process, the current time period is determined based on the real-time detected ambient brightness, and the corresponding preset scaling range is determined based on the activity intensity of birds in that time period. For example, by automatically switching the scanning mode and laser pulse duty cycle, the geometric shape and flashing frequency of the light curtain are changed to disrupt the birds' spatial positioning sense and inhibit their physiological adaptation.

[0072] For example, when the light intensity is detected to be between 100 lux and 500 lux (corresponding to the peak bird activity periods at dawn and dusk), it is determined to be a high-intensity protection phase. At this time, the control unit increases the duty cycle of the laser pulse from 10% to 35%. At the same time, while maintaining the basic scanning trajectory, a low-frequency amplitude-modulated signal with a frequency of 5 Hz is superimposed, causing the field of view of the scanning area to periodically contract and expand within the range of 80% to 120% of the original field of view. This dynamic change presents a sense of rapidly approaching physical threat to birds, forcing them to change their flight path.

[0073] In this embodiment of the invention, by adjusting the laser beam of the laser device to target birds, on the one hand, the laser beam is processed non-periodicly and randomly according to their adaptive characteristics, so as to effectively overcome the physiological adaptation of birds and achieve a long-term and effective bird-repelling effect; on the other hand, by utilizing the birds' danger avoidance characteristics against predators and natural environment, corresponding features are applied to the laser light curtain, thereby further causing birds to actively stay away from the laser light curtain, further improving the protection effect and meeting the actual needs of enterprises.

[0074] Further, please see Figure 2This invention also provides a bird-repelling device based on a laser light curtain, characterized in that the device includes: an information determination unit for determining the three-dimensional space to be protected on the high-voltage tower, as well as the configuration position and number of laser devices; a deflection unit for determining the horizontal deflection amplitude range and vertical deflection amplitude range of each laser device based on the three-dimensional space to be protected, the configuration position, and the number of devices; a random parameter generation unit for generating horizontal random driving parameters corresponding to the horizontal deflection amplitude range, and generating vertical random driving parameters corresponding to the vertical deflection amplitude range; an adjustment unit for acquiring ambient brightness information, perceptually adjusting the horizontal and vertical random driving parameters based on the ambient brightness information, and generating adjusted driving parameters; a beam generation unit for processing the parallel laser beam based on the horizontal deflection amplitude range, the vertical deflection amplitude range, and the adjusted driving parameters to generate a dynamic random scanning beam, wherein the dynamic random scanning beams generated by all laser devices dynamically cover the three-dimensional space to be protected; and a light curtain generation unit for generating a dynamic bird-repelling light curtain based on the dynamic random scanning beams.

[0075] Furthermore, embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the methods described in the embodiments of the present invention.

[0076] The optional embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the protection scope of the embodiments of the present invention.

[0077] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not describe the various possible combinations separately.

[0078] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. This program is stored in a storage medium and includes several instructions to cause a microcontroller, chip, or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0079] Furthermore, various different implementations of the present invention can be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed in the present invention.

Claims

1. A bird-repelling method based on a laser light curtain, wherein the method is applied to a laser device, the laser device being configured on a high-voltage tower to be protected, for generating a parallel laser beam, characterized in that... The method includes: Determine the three-dimensional space to be protected on the high-voltage tower, as well as the location and quantity of the laser device; The horizontal deflection amplitude range and vertical deflection amplitude range of each laser device are determined based on the three-dimensional space to be protected, the configuration location, and the number of configurations. Generate horizontal random drive parameters corresponding to the horizontal deflection amplitude range, and generate vertical random drive parameters corresponding to the vertical deflection amplitude range; Acquire ambient brightness information, and based on the ambient brightness information, perform perceptual adjustment on the horizontal random drive parameters and the vertical random drive parameters to generate adjusted drive parameters; The parallel laser beam is processed based on the horizontal deflection amplitude range, the vertical deflection amplitude range, and the adjusted driving parameters to generate a dynamic random scanning beam. The dynamic random scanning beams generated by all laser devices dynamically cover the three-dimensional space to be protected. A dynamic bird-repelling light curtain is generated based on the dynamic random scanning beam; The generation of horizontal random drive parameters corresponding to the horizontal deflection amplitude range and the generation of vertical random drive parameters corresponding to the vertical deflection amplitude range include: Determine a first driving frequency for the horizontal deflection amplitude range and a second driving frequency for the vertical deflection amplitude range; A first random number corresponding to the horizontal deflection range and a second random number corresponding to the vertical deflection range are generated at preset time intervals. A first initial phase for the horizontal deflection amplitude range is determined based on the first random number, and a second initial phase for the vertical deflection amplitude range is determined based on the second random number. Horizontal random driving parameters are generated based on the first driving frequency and the first initial phase, and vertical random driving parameters are generated based on the second driving frequency and the second initial phase. The method further includes: Obtain the initial self-similar model; Fractal trajectories are generated based on the initial self-similar model; A scan coordinate sequence is generated based on the fractal trajectory; The horizontal and vertical random driving parameters are adjusted based on the scan coordinate sequence to generate adjusted horizontal and vertical random driving parameters.

2. The method according to claim 1, characterized in that, The method further includes: After generating the dynamic random scanning beam, the real-time power value of the dynamic random scanning beam and the real-time ambient temperature value are obtained. Determine whether the real-time power value decreases as the real-time ambient temperature increases; If so, determine the preset power threshold and power density requirements; The output power of the laser device is linearly increased based on the power density requirement, and the output power is less than or equal to the preset power threshold.

3. The method according to claim 2, characterized in that, The method of linearly increasing the output power of the laser device based on the power density requirement includes: Obtain ambient humidity data; The atmospheric extinction coefficient is determined based on the aforementioned environmental humidity data; The transmission distance, beam waist radius, and far-field divergence angle of the laser device to the three-dimensional space to be protected are obtained. The target power is determined based on the power density requirement, the atmospheric extinction coefficient, the transmission distance, the beam waist radius, the far-field divergence angle, and a preset laser power density calculation formula, wherein the preset laser power density calculation formula is characterized as follows: in, For the target power, Where L is the atmospheric extinction coefficient and L is the transmission distance. The waist radius is Far-field scattering; The output power of the laser device is linearly increased based on the target power.

4. The method according to claim 3, characterized in that, The laser device includes a collimating lens group, and the method further includes: The transmission distance is acquired in real time before the dynamic random scanning beam is generated; The current spot diameter is determined based on the transmission distance; Obtain the target spot diameter, and adjust the lens spacing in the collimating lens group based on the current spot diameter and the target spot diameter to obtain the adjusted lens spacing; Based on the adjusted lens spacing, the laser device outputs a dynamic bird-repelling light curtain corresponding to the target light spot diameter at different transmission distances.

5. The method according to claim 1, characterized in that, The method further includes: Get the preset rotating cutting visual effect; Based on the preset rotational cutting visual effect, determine the corresponding visual stripe parameters and angular velocity; The second driving frequency and the second initial phase are adjusted based on the visual stripe parameters and the angular velocity to generate the adjusted frequency and the adjusted phase. Adjusted vertical random drive parameters are generated based on the adjusted frequency and the adjusted phase.

6. The method according to claim 1, characterized in that, The step of perceptually adjusting the horizontal and vertical random drive parameters based on the ambient brightness information to generate adjusted drive parameters includes: To obtain the correlation between bird activity intensity and different time periods; The current time period is determined based on the ambient brightness. Based on the correspondence and the current time period, determine whether the current bird activity intensity has reached a preset intensity threshold; If so, determine the preset scaling range; The corresponding low-frequency amplitude modulation parameters are determined based on the preset scaling range; The horizontal random drive parameters and the vertical random drive parameters are adjusted based on the low-frequency amplitude modulation parameters to generate the adjusted drive parameters.

7. A bird-repelling device based on a laser light curtain, applied to a laser device, wherein the laser device is configured on a high-voltage tower to be protected, for generating a parallel laser beam, characterized in that, The device includes: An information determination unit is used to determine the three-dimensional space to be protected on the high-voltage tower, as well as the configuration location and quantity of the laser device; A deflection unit is used to determine the horizontal deflection amplitude range and the vertical deflection amplitude range of each laser device based on the three-dimensional space to be protected, the configuration position, and the number of configurations. A random parameter generation unit is used to generate horizontal random driving parameters corresponding to the horizontal deflection amplitude range, and to generate vertical random driving parameters corresponding to the vertical deflection amplitude range. An adjustment unit is used to acquire ambient brightness information, and based on the ambient brightness information, to perform perceptual adjustment on the horizontal random drive parameters and the vertical random drive parameters to generate adjusted drive parameters. A beam generation unit is used to process the parallel laser beam based on the horizontal deflection amplitude range, the vertical deflection amplitude range, and the adjusted driving parameters to generate a dynamic random scanning beam. The dynamic random scanning beams generated by all laser devices dynamically cover the three-dimensional space to be protected. A light curtain generation unit is used to generate a dynamic bird-repelling light curtain based on the dynamic random scanning beam. The random parameter generation unit is specifically used for: Determine a first driving frequency for the horizontal deflection amplitude range and a second driving frequency for the vertical deflection amplitude range; A first random number corresponding to the horizontal deflection range and a second random number corresponding to the vertical deflection range are generated at preset time intervals. A first initial phase for the horizontal deflection amplitude range is determined based on the first random number, and a second initial phase for the vertical deflection amplitude range is determined based on the second random number. Horizontal random driving parameters are generated based on the first driving frequency and the first initial phase, and vertical random driving parameters are generated based on the second driving frequency and the second initial phase. The device is also used for: Obtain the initial self-similar model; Fractal trajectories are generated based on the initial self-similar model; A scan coordinate sequence is generated based on the fractal trajectory; The horizontal and vertical random driving parameters are adjusted based on the scan coordinate sequence to generate adjusted horizontal and vertical random driving parameters.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the program implements the method described in any one of claims 1-6.

Images