Laser bird repellent system and method

Abstract

The embodiment of the present invention provides a laser bird-repelling system and method, the system comprising: at least two laser bird-repelling devices; the at least two laser bird-repelling devices emit lasers of at least two different colors, and the at least two laser bird-repelling devices are located at different positions so as to illuminate the same bird from different directions. The color vision battle effect and color sensitivity characteristics of the bird's eye are utilized to achieve effective bird-repelling.

Description

Technical Field

[0001] The present invention relates to the field of bird repelling, and in particular to a laser bird repelling system and method. Background Art

[0002] Birds are an important part of the natural ecosystem on which humans depend for survival, but they also cause serious harm and huge economic losses to aviation, railways, electricity, agriculture, forestry, fishery production and environmental protection. According to statistics from the International Civil Aviation Organization, there are nearly 29,000 bird strike accidents per year, with economic losses of about US$11 billion. Bird damage is the number one factor causing failures in railway contact networks and electrical equipment. According to statistics from China Railway Electrification Operation Company, China Railway handles nearly 30,000 bird nests every year. According to the IEEE report, nearly 25% of power transmission line failures are related to birds, and 86% of electrical equipment failures in substations are caused by birds. In the world's aquaculture industry, bird damage causes losses of about 16 million tons per year. Birds and arthropods, nematodes, rodents, etc. cause a 15% loss in global rice production. Birds such as the Chinese gray magpie are extremely harmful to grapes, cherries, longans, lychees, etc., especially grapes, which can cause them to be completely extinct. Birds cause serious environmental pollution, resulting in the emergence of "sky shit roads" and pollution of water sources and large buildings.

[0003] Therefore, bird damage forces relevant industries to find ways to drive away birds, and even take extreme measures to kill birds, destroying the ecological balance. How to effectively drive away birds without harming them is a global problem!

[0004] Currently, commonly used methods of bird repelling include sound (bird-scaring vehicles, gas cannons), reflective vehicles, shooting, netting, chemicals, bird nesting, ultrasound, etc. However, some of the above methods harm birds, some require long-term effects (several months to produce certain effects), some cause noise pollution and environmental pollution, some endanger the health of workers, and there are also environmental disturbances.

[0005] Years of research by the Animal and Plant Health Inspection Service of the U.S. Department of Agriculture, the (formerly) Defense Evaluation and Research Agency of the United Kingdom, and the International Civil Aviation Organization have proven that laser bird repellers can safely and effectively repel a variety of birds and are the most effective bird repellent equipment. However, according to statistics from the International Civil Aviation Organization, laser bird repellers can reduce 42% of bird hazards in the aviation industry and achieve a 76% bird repellent effect, which still needs to be improved. One of the important reasons is that laser bird repellers currently ensure that only one eye of the bird is illuminated, even if multiple laser bird repellers are used. For example, some airports install a laser bird repeller at each end of a runway in order to overcome the large blind spots when the laser scans downward from a height of about 2 meters, and expand the laser scanning range, which is essentially equivalent to a single laser bird repeller irradiating one eye of the bird. Summary of the invention

[0006] The embodiments of the present invention provide a laser bird-repelling system and method, which utilize the color vision battle effect and color sensitivity characteristics of bird eyes to achieve effective bird-repelling.

[0007] A laser bird repellent system, comprising: at least two laser bird repellents;

[0008] The at least two laser bird repellents emit lasers of at least two different colors, and the at least two laser bird repellents are located at different positions so as to illuminate the same bird from different directions.

[0009] Each of the laser bird repellers emits a laser of a single fixed wavelength, or lasers of multiple wavelengths, or lasers of different colors modulated by a combination of multiple wavelengths.

[0010] The at least two laser bird repellers are at least two fully automatic laser bird repellers, or at least two handheld laser bird repellers, or a combination of an automatic laser bird repeller and a handheld laser bird repeller.

[0011] The colors of the lasers emitted by the at least two laser bird repellents are different from the visual indication colors used on site.

[0012] The at least two laser bird repellents are located at different positions so as to illuminate birds in the air or on the ground from different directions.

[0013] The two laser bird repellents are placed 180 degrees relative to each other; or

[0014] The two laser bird repellents are located at different heights, and their projection planes are placed at an obtuse angle relative to each other; or

[0015] There are three laser bird repellers, which are at different plane heights, wherein the second laser bird repeller and the third laser bird repeller are placed at an obtuse angle to the first laser bird repeller in the projection plane; or

[0016] There are three laser bird repellers, wherein the second laser bird repeller is at the same height as the first laser bird repeller and is placed opposite to each other at an angle of 180°; the third laser bird repeller 3 is at a different height from the first laser bird repeller and is placed at an acute angle in its plane projection.

[0017] A laser bird-repelling method, comprising:

[0018] Place at least 2 laser bird repellents at different locations in the place where birds are to be repelled;

[0019] The at least two laser bird repellents emit lasers of at least two different colors so that the at least two laser bird repellents illuminate the same bird in the place to be repelled from different directions.

[0020] Each of the laser bird repellers emits a laser of a single fixed wavelength, or lasers of multiple wavelengths, or lasers of different colors modulated by a combination of multiple wavelengths.

[0021] The at least two laser bird repellers are at least two fully automatic laser bird repellers, or at least two handheld laser bird repellers, or a combination of an automatic laser bird repeller and a handheld laser bird repeller.

[0022] The color of the lasers emitted by the at least two laser bird repellents is different from the color of the visual indication used on site.

[0023] It can be seen from the technical solution provided by the above-mentioned embodiment of the present invention that in the embodiment of the present invention, two or more colors of lasers are used to irradiate the bird's eyes from different directions, that is, to irradiate the two eyes of the bird, which is different from the existing single fixed wavelength laser bird repellent and multi-wavelength laser bird repellent that irradiate one eye of the bird, thereby producing an effective bird eye color vision fighting effect, causing the bird to have serious inadaptability, and greatly improving the bird repelling effect and efficiency.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, which will become obvious from the following description, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0026] Figure 1 This is a schematic diagram of the laser bird-repelling system of the present invention;

[0027] Figure 2 This is one of the deformation diagrams of the laser bird-repelling system of the present invention.

[0028] Figure 3 This is the second deformation diagram of the laser bird-repelling system of the present invention.

[0029] Figure 4 This is the third deformation diagram of the laser bird-repelling system of the present invention.

[0030] Figure 5 This is the fourth schematic diagram of the laser bird-repelling system described in the present invention.

[0031] Figure 6 The figure is a schematic diagram of the laser bird-repelling method of the present invention.

[0032] Marked in the figure: laser bird repellent 1, laser bird repellent 2, laser bird repellent 3, laser bird repellent 4, bird or bird flock 5, bird or bird flock 6, bird or bird flock 7, bird or bird flock 8, bird or bird flock 9 and bird or bird flock 10. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0034] To facilitate understanding of the embodiments of the present invention, several specific embodiments will be further explained below with reference to the accompanying drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.

[0035] Figure 1 A schematic diagram of a laser bird-repellent system; Figure 2 This is one of the deformation diagrams of a laser bird-repellent system. Figure 3 This is the second deformation diagram of a laser bird-repelling system. Figure 4 This is the third deformation diagram of a laser bird-repelling system. Figure 5 This is a fourth schematic diagram of a laser bird-repelling system. The following is a description in conjunction with the various figures.

[0036] A laser bird repellent system, comprising: at least two laser bird repellents;

[0037] The at least two laser bird repellents emit lasers of at least two different colors, and the at least two laser bird repellents are located at different positions so as to illuminate the same bird from different directions.

[0038] Optionally, each laser bird repeller emits a laser of a single fixed wavelength, or lasers of multiple wavelengths, or lasers of different colors modulated by a combination of multiple wavelengths. The wavelength of the laser emitted by each laser bird repeller is configured according to the habits of the birds to be repelled.

[0039] Optionally, the at least two laser bird repellers are at least two fully automatic laser bird repellers, or at least two handheld laser bird repellers, or a combination of automatic laser bird repellers and handheld laser bird repellers.

[0040] Optionally, the color of the lasers emitted by the at least two laser bird repellents is different from the color of the visual indication used on site. The color of the visual indication includes, for example, the color of the indicator, signal facility, sign, navigation light, mark, marker, etc.

[0041] Optionally, the at least two laser bird repellers are located at different positions so as to illuminate birds in the air or on the ground from different directions.

[0042] Optionally, the two laser bird repellers are placed at 180° relative to each other. Alternatively, optionally, the two laser bird repellers are located at different heights, and the projection planes are placed at an obtuse angle relative to each other. Alternatively, optionally, there are three laser bird repellers, which are at different plane heights from each other, wherein the second laser bird repeller and the third laser bird repeller are placed at an obtuse angle to the first laser bird repeller in the projection plane. Alternatively, optionally, there are three laser bird repellers, wherein the second laser bird repeller is at the same height as the first laser bird repeller, and is placed at an angle of 180° relative to the first laser bird repeller; the third laser bird repeller 3 is at a different height from the first laser bird repeller, and is placed at an acute angle in its plane projection.

[0043] The application scenarios of the present invention are described below. A laser bird-repelling system includes two laser bird-repelling devices that emit two or more color lasers, irradiating bird eyes from different directions, that is, irradiating two eyes of the same bird, producing an effective bird eye color vision battle effect, causing the bird to have serious inadaptability, greatly improving the bird-repelling effect and efficiency, and effectively forming a ground bird-repelling system or an air bird-repelling system or an air-ground (air and ground) integrated bird-repelling system. The present invention selects a laser color that is different from the color of visual indicators such as airport signs, signal facilities, signs, navigation lights, signs and landmarks, so as not to affect pilots and ground staff. The present invention overcomes the problem of poor bird-repelling effect during the day when a single laser bird-repellent device or two or more laser bird-repellent devices using the laser power (brightness) effect are used (the current simultaneous use of multiple laser bird-repellent devices only expands the scanning range and eliminates scanning blind spots, which is essentially equivalent to the effect of a single device, i.e., irradiating one eye of the bird), thereby improving the bird-repelling effect and efficiency, while increasing the laser power and avoiding harm to human eyes and bird eyes. The present invention also expands the types of bird-repelling devices and improves the bird-repelling effect and efficiency.

[0044] It includes 2 or more laser bird repellents; the laser bird repellent system emits 2 or more lasers of different colors; each laser bird repellent illuminates the two eyes of the same bird from different directions.

[0045] Each laser bird repellent in the laser bird repellent system can emit a single fixed wavelength laser or a plurality of wavelength lasers or a multi-wavelength combination modulated lasers of different colors.

[0046] The laser bird repellent system is composed of 2 or more fully automatic laser bird repellents or 2 or more handheld laser bird repellents or a combination of 2 or more automatic laser bird repellents and handheld laser bird repellents. Each laser bird repellent in the laser bird repellent system illuminates birds in the air or on the ground from different directions.

[0047] Embodiment 1, as Figure 1As shown, laser bird repeller 1 and laser bird repeller 2 are placed at 180° relative to each other to form a ground laser bird repeller system. Bird or bird flock 5, bird or bird flock 6, and bird or bird flock 7 are ground birds or bird flocks within the scanning range of laser bird repeller 1 and laser bird repeller 2. Specifically, the fully automatic laser bird repeller 1 and the fully automatic laser bird repeller 2 form an airport ground laser bird repeller system, and the two laser bird repellers are placed at the same height at an angle of 180°. In order to avoid the possible influence of the laser bird repeller system on pilots and ground staff, the laser color emitted by the laser bird repeller system used in this embodiment is completely different from the color of the airport indicator light, wherein the laser bird repeller 1 is modulated by a semiconductor laser with a wavelength of 650nm, 520nm and 430nm to emit a laser with a color of 360nm, wherein the laser bird repeller 1 is modulated by a semiconductor laser with a wavelength of 650nm, 520nm and 430nm to emit a laser with a color of 690nm. Laser bird repeller 1 and laser bird repeller 2 illuminate a bird at the same time.

[0048] Embodiment 2, as Figure 2 As shown, there are laser bird repeller 1 and laser bird repeller 2. The two laser bird repellers are at different heights, and the projection planes are placed at an obtuse angle relative to each other, forming an aerial laser bird repeller system. Bird or bird flock 5, bird or bird flock 6, and bird or bird flock 7 are schematic diagrams of aerial birds or bird flocks within the scanning range of laser bird repeller 1 and laser bird repeller 2. Specifically, the fully automatic laser bird repeller 1 and laser bird repeller 2 form an airport low-altitude laser bird repeller system. In order to avoid the possible influence of the laser bird repeller system on pilots and ground staff, the laser color emitted by the laser bird repeller system used in this embodiment is completely different from the color of the airport indicator light, wherein the laser bird repeller 1 is modulated by semiconductor lasers with wavelengths of 650nm, 520nm and 430nm to emit a laser with a color of 360nm, wherein the laser bird repeller 1 is modulated by semiconductor lasers with wavelengths of 650nm, 520nm and 430nm to emit a laser with a color of 690nm. Laser bird repeller 1 and laser bird repeller 2 simultaneously irradiate a bird.

[0049] Embodiment 3, as Figure 3 As shown, Figure 3The three laser bird repellers are laser bird repeller 1, laser bird repeller 2 and laser bird repeller 3. The three laser bird repellers are at different plane heights. The laser bird repellers 2 and 3 are placed at an obtuse angle to the laser bird repeller 1 in the projection plane, forming an aerial laser bird repeller system. Bird or bird flock 9, bird or bird flock 9, and bird or bird flock 10 are schematic diagrams of aerial birds or bird flocks within the scanning range of laser bird repeller 1, laser bird repeller 2 and laser bird repeller 3. Specifically, the fully automatic laser bird repeller 1, laser bird repeller 2 and laser bird repeller 3 form an aerial laser bird repeller system with an airport of not less than 2km. In order to ensure the effective bird-repelling distance of the laser and avoid the visual impact of the laser on the pilot, the laser bird repellent 1 used emits a 473nm laser (using an all-solid-state intracavity frequency-doubled Nd:YVO4 / BBO 473nm laser), the laser bird repellent 2 emits a 532nm laser (using an all-solid-state intracavity frequency-doubled Nd:YVO4 / LBO 532nm laser), and the laser bird repellent 3 emits a 671nm laser (using an all-solid-state intracavity frequency-doubled Nd:YVO4 / LBO 671nm laser).

[0050] Embodiment 4, as Figure 4 As shown, Figure 4 The laser bird repeller 1, laser bird repeller 2 and laser bird repeller 3 are composed of an air-ground (air and ground) integrated laser bird repeller system, wherein the laser bird repeller 2 and the laser bird repeller 1 are at the same height and are placed opposite to each other at an angle of 180°. The laser bird repeller 3 and the laser bird repeller 1 are at different heights and are placed at an acute angle in their plane projection. Bird or bird flock 5, bird or bird flock 6, and bird or bird flock 7 are schematic diagrams of ground birds or bird flocks within the scanning range of the laser bird repeller 1 and the laser bird repeller 2, and bird or bird flock 8, bird or bird flock 9 and bird or bird flock 10 are schematic diagrams of air birds or bird flocks within the scanning range of the laser bird repeller 1, the laser bird repeller 2 and the laser bird repeller 3. Specifically: the fully automatic laser bird repeller 1, the laser bird repeller 2 and the laser bird repeller 3 form an air-ground integrated laser bird repeller system for an airport. In order to avoid the possible influence of the laser bird-repelling system on pilots and ground staff, the laser color emitted by the laser bird-repelling system used in this embodiment is completely different from the color of the airport marking light, wherein the laser bird-repelling device 1 is modulated by a semiconductor laser with a wavelength of 650nm, 520nm and 430nm to emit a laser with a color of 360nm, the laser bird-repelling device 2 is modulated by a semiconductor laser with a wavelength of 650nm, 520nm and 430nm to emit a laser with a color of 580nm, and the laser bird-repelling device 3 is modulated by a semiconductor laser with a wavelength of 650nm, 520nm and 430nm to emit a laser with a color of 690nm. The laser bird-repelling device 1, the laser bird-repelling device 2 and the laser bird-repelling device 3 are combined in pairs to respectively illuminate birds or bird flocks in the air and birds or bird flocks on the ground.

[0051] Embodiment 5, as Figure 5As shown, the fully automatic laser bird repeller 1, the laser bird repeller 2, the laser bird repeller 3 and the laser bird repeller 4 constitute an airport air-to-ground integrated laser bird repeller system. In order to avoid the possible influence of the laser bird-repelling system on pilots and ground staff, the laser color emitted by the laser bird-repelling system used in this embodiment is completely different from the color of the airport marking light, wherein the laser bird-repelling device 1 is modulated by semiconductor lasers with wavelengths of 650nm, 520nm and 430nm to emit a laser with a color of 360nm, the laser bird-repelling device 2 is modulated by semiconductor lasers with wavelengths of 650nm, 520nm and 430nm to emit a laser with a color of 500nm, the laser bird-repelling device 3 is modulated by semiconductor lasers with wavelengths of 650nm, 520nm and 430nm to emit a laser with a color of 630, and the laser bird-repelling device 4 is modulated by semiconductor lasers with wavelengths of 650nm, 520nm and 430nm to emit a laser with a color of 695nm. The laser bird-repelling device 1, the laser bird-repelling device 2, the laser bird-repelling device 3 and the laser bird-repelling device 4 are combined in pairs to respectively illuminate birds or bird flocks in the air and birds or bird flocks on the ground.

[0052] In the above embodiments, the laser bird repeller 1, laser bird repeller 2 and laser bird repeller 3 constituting the laser bird repeller system can emit a single fixed wavelength laser, or emit a multi-wavelength laser, or emit a certain color or multiple colors of laser generated by a combination of multiple wavelength lasers. The laser bird repeller 1, laser bird repeller 2 and laser bird repeller 3 can be fully automatic or handheld, or a combination of fully automatic and handheld. In other words, the laser bird repeller 1, laser bird repeller 2 and laser bird repeller 3 are fully automatic laser bird repellers or handheld laser bird repellers or a combination of fully automatic laser bird repellers and handheld laser bird repellers.

[0053] Laser bird repeller 1, laser bird repeller 2 and laser bird repeller 3 can emit lasers of a single fixed wavelength or lasers of multiple wavelengths or lasers of different colors modulated by a combination of multiple wavelengths, and when two or more laser bird repellers are used in combination, at least two or more lasers of different colors are emitted;

[0054] Two or more laser bird repellers can be placed in different directions according to the actual situation at the bird repeller site to ensure that both eyes of a bird are effectively illuminated.

[0055] like Figure 6 As shown, the present invention also provides a laser bird-repelling method, comprising:

[0056] Step 11, placing at least two laser bird repellents at different locations of the place where birds are to be repelled;

[0057] Step 12, making the at least two laser bird repellers emit lasers of at least two different colors so that the at least two laser bird repellers illuminate the same bird in the place to be repellered from different directions.

[0058] Each of the laser bird repellers emits a laser of a single fixed wavelength, or lasers of multiple wavelengths, or lasers of different colors modulated by a combination of multiple wavelengths.

[0059] The at least two laser bird repellers are at least two fully automatic laser bird repellers, or at least two handheld laser bird repellers, or a combination of an automatic laser bird repeller and a handheld laser bird repeller.

[0060] The color of the lasers emitted by the at least two laser bird repellents is different from the color of the visual indication used on site.

[0061] The present invention has the following beneficial effects:

[0062] a. Unlike human eyes, there are four different types of visual pigments in the cone cells in the retina of bird eyes (except rod cells). These visual pigments appeared in the early stage of vertebrate evolution 400 million to 350 million years ago, so birds have four or five color vision. There is a color vision struggle in bird eyes, that is, when the two eyes are stimulated by light of different colors, different colors will appear in the corresponding areas on their retina. Because they cannot be fused, the single vision of the two eyes is hindered, resulting in the alternating appearance and disappearance of different colors. The present invention uses two or more colors of laser to illuminate the bird's eyes from different directions, that is, to illuminate the two eyes of the bird. Different from the existing single fixed wavelength laser bird repellent and multi-wavelength laser bird repellent that illuminate one eye of the bird, an effective color vision struggle effect is produced, which makes full use of the color vision struggle effect to make the bird seriously unadaptable and greatly improve the bird repellent effect and efficiency.

[0063] (2) By utilizing the color field of vision, the existing laser bird repellent based on the laser power (brightness) and sensitive wavelength effect is overcome, which is affected by the background light and has poor bird repelling effect during the day when used alone or when two or more laser bird repellents are used simultaneously, thus achieving effective bird repelling around the clock. At present, the simultaneous use of multiple laser bird repellents only expands the scanning range and eliminates the scanning blind spots, which is essentially equivalent to the effect of a single laser, that is, irradiating one eye of the bird.

[0064] (3) By selecting a laser with a large color difference from visual facilities and signs, it can effectively avoid the impact on pilots and ground staff during aircraft takeoff and landing, making it particularly suitable for airport bird repellent.

[0065] (4) It overcomes the problem of limited bird species due to the single fixed wavelength of existing laser bird repellent devices.

[0066] (5) It has a wide range of application places and application scope. It is suitable for bird repellent applications in airports, power plants, railways, orchards, forest farms, urban environmental protection and natural ecological protection areas, aquaculture farms, power plants, urban environmental protection, and natural ecological protection areas. It has important practical value for aviation safety, railway safety, power safety, agricultural, forestry and fishery development, wildlife protection and ecological balance, and can effectively promote aviation safety, agricultural, forestry and fishery development, bird protection, and can generate huge economic and social benefits.

[0067] The present invention is in the field of optical bird repellent technology, involving bird visual optics, physiological optics, photoecology, laser, optics, nonlinear optics and other fields, and is suitable for bird repellent in industries such as aerospace, electricity, railway, agriculture, forestry, fishery, environmental protection and natural ecological protection areas. It overcomes the problem that the bird repellent effect of a single or multiple laser bird repellents with the same wavelength is not ideal, effectively improves the bird repellent effect, and expands the application field.

[0068] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A laser bird repellent system, characterized in that :Includes at least 2 laser bird repellents; The at least two laser bird repellers emit lasers of at least two different colors. The at least two laser bird repellers are located at different positions and illuminate the same bird from different directions, so that the two eyes of the bird are stimulated by light of different colors respectively, resulting in an effective color vision competition effect, which cannot be integrated and hinders the single vision of the two eyes, causing the bird to have serious maladaptation.

2. The laser bird-repelling system according to claim 1, characterized in that: Each of the laser bird repellers emits a laser of a single fixed wavelength, or lasers of multiple wavelengths, or lasers of different colors modulated by a combination of multiple wavelengths.

3. The laser bird-repelling system according to claim 1, characterized in that: The at least two laser bird repellers are at least two fully automatic laser bird repellers, or at least two handheld laser bird repellers, or a combination of an automatic laser bird repeller and a handheld laser bird repeller.

4. The laser bird-repelling system according to claim 1, characterized in that: The color of the lasers emitted by the at least two laser bird repellents is different from the color of the visual indication used on site.

5. The laser bird-repellent system according to claim 1, characterized in that: The two laser bird repellents are placed 180 degrees relative to each other; or The two laser bird repellents are located at different heights, and their projection planes are placed at an obtuse angle relative to each other; or There are three laser bird repellers, which are at different plane heights, wherein the second laser bird repeller and the third laser bird repeller are placed at an obtuse angle to the first laser bird repeller in the projection plane; or There are three laser bird repellers, wherein the second laser bird repeller is at the same height as the first laser bird repeller and is placed opposite to each other at an angle of 180°; the third laser bird repeller is at a different height from the first laser bird repeller and is placed at an acute angle in its plane projection.

6. The laser bird-repelling system according to claim 1, wherein the wavelength of the laser emitted by each laser bird-repelling device is configured according to the habits of the birds to be repelled.

7. A laser bird-repelling method, characterized in that: include: Place at least 2 laser bird repellents at different locations in the place where birds are to be repelled; The at least two laser bird repellers emit lasers of at least two different colors, and illuminate the same bird in the place to be repelled from different directions, so that the two eyes of the bird are stimulated by light of different colors respectively, resulting in an effective color vision competition effect, which cannot be integrated and hinders the single vision of the two eyes, causing the bird to have serious maladaptation.

8. The laser bird-repelling method according to claim 7, characterized in that: Each of the laser bird repellers emits a laser of a single fixed wavelength, or lasers of multiple wavelengths, or lasers of different colors modulated by a combination of multiple wavelengths.

9. The laser bird-repelling method according to claim 7, characterized in that: The at least two laser bird repellers are at least two fully automatic laser bird repellers, or at least two handheld laser bird repellers, or a combination of an automatic laser bird repeller and a handheld laser bird repeller.

10. The laser bird-repelling method according to claim 7, characterized in that: The color of the lasers emitted by the at least two laser bird repellents is different from the color of the visual indication used on site.

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