Snow removal system, method and device and storage medium

Abstract

The invention discloses a snow removal system, method and device and a storage medium, and relates to the technical field of photovoltaic operation and maintenance, and the snow removal system comprises a first reflector used for reflecting solar rays to a second reflector; and the second reflecting mirror is positioned above the first reflecting mirror and is used for reflecting reflected light rays of the solar rays to the surface of the photovoltaic module, so that accumulated snow on the surface of the photovoltaic module is melted, and the snow removal requirements in different photovoltaic power station scenes are met.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic operation and maintenance technology, and in particular to snow removal systems, methods, devices and storage media. Background Art

[0002] In winter, the surface of photovoltaic modules is often inevitably covered with thick snow, which blocks the contact between sunlight and photovoltaic modules, resulting in serious limitations on the power generation capacity of photovoltaic power stations.

[0003] In order to effectively deal with this problem, the industry currently mainly changes the installation angle of photovoltaic modules and uses the principle of snow sliding naturally under the action of gravity to remove snow. This method has the significant advantage of fast snow removal speed and can quickly restore the power generation capacity of photovoltaic modules in a short time.

[0004] However, it is only applicable to photovoltaic power station scenarios equipped with tracking brackets. For photovoltaic power station scenarios with fixed brackets, since the installation angle of photovoltaic modules is fixed and cannot be flexibly adjusted, its usage scenarios are limited. Summary of the invention

[0005] The main purpose of this application is to provide a snow removal system, method, device and storage medium, aiming to meet the snow removal needs in different photovoltaic power station scenarios.

[0006] To achieve the above objectives, the present application proposes a snow removal system, which comprises:

[0007] a first reflector, for reflecting sunlight to a second reflector;

[0008] The second reflector is located above the first reflector and is used to reflect the reflected light of the sunlight to the surface of the photovoltaic module, so that the snow on the surface of the photovoltaic module melts.

[0009] In one embodiment, the snow removal system further comprises:

[0010] Control module;

[0011] a first rotating module connected to the control module;

[0012] The control module is used to determine a first target angle of the first reflector according to a current angle of sunlight, and control the first rotation module to drive the first reflector to the first target angle so as to reflect the sunlight to the second reflector.

[0013] In one embodiment, the snow removal system further comprises:

[0014] a second rotating module connected to the control module;

[0015] The control module is further used to determine a second target angle of the second reflector, and control the second rotation module to drive the second reflector to the second target angle, so as to reflect the reflected light of the sunlight to the surface of the photovoltaic component.

[0016] In one embodiment, the second reflector includes a plurality of sub-reflectors, and the rotation module corresponding to each sub-reflector is connected to the control module;

[0017] The control module is also used to determine the target angle of each sub-reflector, and control the rotation modules corresponding to each sub-reflector to rotate in sequence according to a preset time interval to adjust the corresponding sub-reflector to the corresponding target angle, so that each sub-reflector reflects the reflected light of the sunlight to the surface of the photovoltaic component in sequence.

[0018] In one embodiment, the snow removal system further comprises:

[0019] An image acquisition module and a laser ranging module connected to the control module, wherein the image acquisition module and the laser ranging module are arranged within a preset range of the second reflector;

[0020] The control module is further used to determine the second target angle based on the image captured by the image acquisition module and the measurement result of the laser ranging module.

[0021] In one embodiment, the snow removal system further comprises:

[0022] A third rotation module and a fourth rotation module connected to the control module;

[0023] The control module is further used to determine an initial snow accumulation position of the photovoltaic component based on the image, control the third rotation module to rotate so that the initial snow accumulation position is located at the center of the screen of the image acquisition module, and control the fourth rotation module to rotate according to the angle information of the initial snow accumulation position relative to the image acquisition module to adjust the angle of the laser ranging module, so that the light emitted by the laser ranging module to the photovoltaic component overlaps with the light spot of the photovoltaic component and the initial snow accumulation position, and obtain the measurement result of the laser ranging module.

[0024] In one embodiment, the snow removal system further comprises:

[0025] A shielding module, the shielding module is connected to the control module;

[0026] The control module is further used to control the shielding module to open and expose the first reflector when it is determined that snow is accumulated on the photovoltaic assembly; or to control the shielding module to close and cover the first reflector when it is determined that snow is not accumulated on the photovoltaic assembly.

[0027] To achieve the above objectives, the present application proposes a snow removal method, which comprises:

[0028] When snow is detected on the surface of the photovoltaic component, the angles of the first reflector and the second reflector are adjusted to reflect sunlight to the surface of the photovoltaic component.

[0029] In one embodiment, before the step of adjusting the angles of the first reflector and the second reflector when snow is detected on the surface of the photovoltaic assembly, the method further includes:

[0030] Perform semantic segmentation on the currently acquired image to obtain the outline of the photovoltaic string;

[0031] Extracting a contour from the photovoltaic string contour;

[0032] When the color value of the pixel point in the extracted contour is a preset color value and the extracted contour is located within the contour of the photovoltaic string, it is determined that snow exists on the surface of the photovoltaic component corresponding to the extracted contour, and the extracted contour is marked as a snow contour;

[0033] Alternatively, when the color value of the pixel point in the extracted outline is not the preset color value or the extracted outline is located outside the outline of the photovoltaic string, it is determined that there is no snow on the surface of the photovoltaic component corresponding to the extracted outline.

[0034] In one embodiment, when snow is detected on the surface of the photovoltaic assembly, the step of adjusting the angles of the first reflector and the second reflector comprises:

[0035] When multiple snow contours are detected, the snow accumulation area of ​​each of the snow contours is determined respectively;

[0036] The target snow accumulation position of each of the snow accumulation contours is sorted according to the snow accumulation area of ​​each of the snow accumulation contours, wherein the target snow accumulation position is the coordinate of the center point of the snow accumulation contour;

[0037] Determine the angle of the first reflector and the angle of the second reflector at each target snow position;

[0038] Based on the sorting result, the angle of the first reflector and the angle of the second reflector are adjusted in sequence at the corresponding target snow accumulation positions to reflect the reflected light of the sunlight to the corresponding target snow accumulation positions in sequence.

[0039] In one embodiment, the step of sequentially adjusting the angle of the first reflector and the angle of the second reflector at the corresponding target snow accumulation position based on the sorting result to sequentially reflect the reflected light of the sunlight to the corresponding target snow accumulation position includes:

[0040] adjusting the angle of the first reflector at the current target snow position so that the first reflector reflects sunlight to the second reflector;

[0041] adjusting the angle of the second reflector at the current target snow accumulation position so that the second reflector reflects the reflected light of the sunlight to the current target snow accumulation position;

[0042] When it is detected that the snow area within the photovoltaic assembly outline corresponding to the current target snow position is smaller than the preset area, a next target snow position is determined, the current target snow position is updated with the next target snow position, and the step of adjusting the angle of the first reflector at the current target snow position is returned to be executed so that the first reflector reflects sunlight to the second reflector;

[0043] When it is detected that the snow accumulation area within the photovoltaic component outline corresponding to the current target snow accumulation position is smaller than the preset area and the current target snow accumulation position is the last target snow accumulation position, the snow removal operation is stopped.

[0044] In one embodiment, when the second reflector includes a plurality of sub-reflectors, the step of adjusting the angle of the second reflector at the current target snow accumulation position so that the second reflector reflects the reflected light of the sunlight to the current target snow accumulation position includes:

[0045] The rotation modules corresponding to the sub-reflectors are controlled to rotate in sequence according to preset time intervals to adjust the corresponding sub-reflectors to corresponding angles, so that the sub-reflectors reflect the reflected light of the sunlight to the current target snow accumulation position in sequence.

[0046] In addition, to achieve the above objectives, the present application also proposes a snow removal device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the snow removal method described above.

[0047] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the snow removal method described above are implemented.

[0048] The present application sets a first reflector and a second reflector near the photovoltaic module. The first reflector is adjusted to reflect sunlight to the second reflector, and the second reflector is adjusted to reflect the reflected sunlight to the surface of the photovoltaic module, so that the sunlight can be focused on the surface of the photovoltaic module to melt the snow on the surface of the photovoltaic module. This snow removal method is not limited by the type of bracket and does not require adjustment of the installation angle of the photovoltaic module. It is not only suitable for photovoltaic power station scenarios equipped with tracking brackets, but also suitable for photovoltaic power station scenarios equipped with fixed brackets, and can meet the snow removal needs of different photovoltaic power station scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0050] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0051] Figure 1 A schematic diagram of the system architecture of the snow removal system for this application;

[0052] Figure 2 A schematic diagram of a process flow provided for the first embodiment of the snow removal method of the present application;

[0053] Figure 3 Another flow chart of the first embodiment of the snow removal method of the present application;

[0054] Figure 4 This is a structural schematic diagram of the snow removal device of this application.

[0055] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0056] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0057] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0058] In the related art, the snow is removed by changing the installation angle of the photovoltaic module and utilizing the principle of the natural sliding of snow under the action of gravity. This method has the significant advantage of fast snow removal and can quickly restore the power generation capacity of the photovoltaic module in a short time. However, it is only applicable to photovoltaic power station scenarios equipped with tracking brackets. For photovoltaic power station scenarios equipped with fixed brackets, since the installation angle of the photovoltaic module is fixed and cannot be flexibly adjusted, its use scenarios are limited.

[0059] In response to the above problems, the present application proposes a snow removal system, which includes a first reflector for reflecting sunlight to a second reflector; the second reflector is located above the first reflector, and is used to reflect the reflected light of the sunlight to the surface of the photovoltaic module, so that the snow on the surface of the photovoltaic module melts.

[0060] The present application sets a first reflector and a second reflector near the photovoltaic module. The first reflector is adjusted to reflect sunlight to the second reflector, and the second reflector is adjusted to reflect the reflected sunlight to the surface of the photovoltaic module, so that the sunlight can be focused on the surface of the photovoltaic module to melt the snow on the surface of the photovoltaic module. This snow removal method is not limited by the type of bracket and does not require adjustment of the installation angle of the photovoltaic module. It is not only suitable for photovoltaic power station scenarios equipped with tracking brackets, but also suitable for photovoltaic power station scenarios equipped with fixed brackets, and can meet the snow removal needs of different photovoltaic power station scenarios.

[0061] In addition, the related technology uses cleaning robots to sweep or blow off the snow on the photovoltaic modules, which has the problem of large hardware investment; or, the photovoltaic modules are heated by reverse power to melt the snow, which has the problem of high energy consumption.

[0062] The present application uses a combination of reflectors installed in fixed positions to reflect sunlight to photovoltaic modules covered with snow to melt the snow on the surface of the photovoltaic modules, which has the advantages of small hardware investment and low energy consumption.

[0063] Based on this, an embodiment of the present application provides a snow removal system, the snow removal system comprising:

[0064] a first reflector, for reflecting sunlight to a second reflector;

[0065] The second reflector is located above the first reflector and is used to reflect the reflected light of the sunlight to the surface of the photovoltaic module, so that the snow on the surface of the photovoltaic module melts.

[0066] It should be noted that the first reflector and the second reflector can be located directly south of the photovoltaic module, that is, the first reflector and the second reflector are located in the south of the distribution range of the photovoltaic module to avoid blocking the photovoltaic module while reflecting the light and ensure the power generation efficiency. However, the position of the reflector depends on many factors, including the installation location of the photovoltaic module, the path of the sun, the required light intensity and direction, etc. Ideally, if the photovoltaic module is located in the northern hemisphere and it is desired to maximize the capture of solar radiation in winter, it is beneficial to place the reflector directly south of the photovoltaic module, because the sun is lower in winter and the reflector located in the south can better capture and reflect the sun's rays. However, in summer or other time periods, the position of the sun will change, so the angle and position of the reflector may also need to be adjusted accordingly. In addition, the position of the reflector is also limited by terrain, buildings, trees and other obstacles. In practical applications, it may be necessary to determine the optimal position and angle of the reflector through calculation and simulation to ensure that they can effectively reflect sunlight to the photovoltaic module. Therefore, the position of the reflector should be optimized according to the specific situation to achieve the best solar radiation capture and photoelectric conversion efficiency.

[0067] It should be noted that the second reflector can be located above the first reflector. However, the specific position of the reflector depends on many factors, including the design requirements of the optical system, the position of the light source, the position of the target receiving surface, and any possible obstacles. In optical design, the position and angle of the reflector are usually accurately calculated and optimized to ensure that the light can be reflected and reach the target area in the expected manner. Therefore, the relative position of the first reflector and the second reflector is not fixed, but can be adjusted according to specific needs. In addition to being located above the first reflector, the second reflector can also be set on the side of the first reflector to better capture and reflect light. This depends on factors such as the position of the light source, the incident angle of the light, and the position of the target receiving surface. In addition, it is also necessary to consider the impact of factors such as the size, shape and material of the reflector on the optical performance.

[0068] The second reflecting mirror and the first reflecting mirror may be plane mirrors.

[0069] Preferably, refer to Figure 1, the first reflector can be a large plane mirror, and the second reflector can be a small plane mirror, that is, the size of the first reflector is larger than the second reflector, the large plane mirror first receives the light from the sun or other light sources and reflects it in a specific direction, and the small plane mirror is located on the path of the reflected light, further reflecting the light to change its direction or focus on a specific point, such as a photovoltaic module. Placing the small plane mirror above the large plane mirror can make more efficient use of space, especially when multiple reflectors are installed in a limited space. This configuration can also avoid obstruction and interference between reflectors. By precisely adjusting the angle and position of the reflector, the energy loss of light during the reflection process can be minimized. The small plane mirror located above the large plane mirror helps to ensure that the reflected light can reach the surface of the photovoltaic module smoothly without losing energy due to being blocked by other objects, thereby reducing energy loss. In addition, the small plane mirror can accurately reflect specific light, thereby improving the reflection efficiency of the entire optical system. This configuration helps to ensure that more light is effectively guided to the photovoltaic module, thereby improving the efficiency of snow removal.

[0070] The following text takes the example that the first reflector is a large plane mirror and the second reflector is a small plane mirror.

[0071] Optionally, the first reflector and the second reflector can both be large plane mirrors, or the first reflector and the second reflector can both be small plane mirrors, or the first reflector is a small plane mirror and the second reflector is a large plane mirror. The sizes of the first reflector and the second reflector can be set according to actual conditions to improve the photoelectric conversion efficiency.

[0072] It should be noted that the angle of the first reflector and the second reflector can be fixed, or the first reflector can be fixed and the angle of the second reflector can be adjusted according to actual conditions, or the second reflector can be fixed and the angle of the first reflector can be adjusted, or the angle of the first reflector and the second reflector can be adjusted at the same time, for example, the angle of the first reflector and the second reflector can be adjusted according to the angle of sunlight, the azimuth of the sun and the snow conditions on the surface of the photovoltaic module.

[0073] It should be noted that the present application may set a set of first reflectors and second reflectors for a group of photovoltaic strings, may set a set of first reflectors and second reflectors for a photovoltaic direction, or may set a set of first reflectors and second reflectors for a photovoltaic module.

[0074] In this embodiment, a first reflector and a second reflector are arranged near the photovoltaic module. The first reflector is adjusted to reflect sunlight to the second reflector, and the second reflector is adjusted to reflect the reflected sunlight to the surface of the photovoltaic module, so that the sunlight can be focused on the surface of the photovoltaic module to melt the snow on the surface of the photovoltaic module. This snow removal method is not limited by the type of bracket and does not require adjustment of the installation angle of the photovoltaic module. It is not only suitable for photovoltaic power station scenarios equipped with tracking brackets, but also suitable for photovoltaic power station scenarios equipped with fixed brackets, and can meet the snow removal needs of different photovoltaic power station scenarios.

[0075] Furthermore, since the sunlight changes in real time over time, the path of the reflected light also changes, thereby affecting the snow removal effect on the surface of the photovoltaic module. Therefore, in order to improve the snow removal effect on the surface of the photovoltaic module, it is also necessary to synchronously adjust the angle of the first reflector so that the reflected light of the first reflector about the sunlight can be irradiated to the second reflector and reflected to the surface of the photovoltaic module by the second reflector. Specifically, the snow removal system of the present application also includes:

[0076] Control module;

[0077] a first rotating module connected to the control module;

[0078] The control module is used to determine a first target angle of the first reflector according to a current angle of sunlight, and control the first rotation module to drive the first reflector to the first target angle so as to reflect the sunlight to the second reflector.

[0079] It should be noted that the first rotation module can be a motor drive module or an electromagnetic drive module. The motor drive module can be a DC motor drive module, a stepper motor drive module, a servo motor drive module, etc. The control module controls the first rotation module to rotate, thereby driving the first reflector to rotate, thereby achieving the effect of adjusting the angle of the first reflector, so that the sunlight can be reflected to the second reflector.

[0080] Preferably, the current sun ray angle may be a sun altitude angle, wherein the sun altitude angle refers to the angle between the incident direction of the sun ray at a certain location on the earth and the ground plane, for example Figure 1 The h in.

[0081] Optionally, the current sun ray angle may also be the sun azimuth angle, the sun azimuth angle ( Figure 1 The solar azimuth (not shown) is also called the solar position, which is an angular parameter that describes the position of the sun in the sky. It is usually defined as the angle measured clockwise from the north along the horizon, indicating the angle between the sun's rays and a vertical plane on the ground (usually the north direction).

[0082] It should be noted that the first target angle of the first reflector is the angle between the first reflector and the horizontal plane, also known as the inclination angle of the first reflector. Figure 1 β in . It can be calculated according to the formula β = 45°-0.5×h, where h is the solar altitude angle.

[0083] It should be noted that, at this time, the angle of the second reflector can be fixed or adjustable.

[0084] Preferably, in order to improve the ability of sunlight to be reasonably reflected to the second reflector and shorten the light path, the first reflector can be enabled to reflect sunlight. The first reflector is adjusted so that the normal of the first reflector is parallel to the plane formed by the projection of the sunlight on the horizontal plane, and the mirror surface faces the sun. This ensures that the sunlight reflected by the first reflector is in an upward direction perpendicular to the horizontal plane. This not only shortens the light path, but also enables the reflected sunlight to be reflected to the second reflector to the maximum extent, thereby improving the utilization rate of sunlight.

[0085] In this embodiment, by setting a first rotation module, the control module can determine the first target angle of the first reflector according to the current angle of the sunlight, and control the first rotation module to drive the first reflector to the first target angle to reflect the sunlight to the second reflector, so that the reflected light of the sunlight can be reflected onto the second reflector.

[0086] Furthermore, when the inclination angle of the second reflector is fixed, although the light can be reflected to the surface of the photovoltaic module, the light can only be reflected to a certain position of the photovoltaic module, and the snow at a certain position of the photovoltaic module can only be melted, and the snow at other positions of the photovoltaic module cannot be melted, resulting in poor snow melting effect of the photovoltaic module. Therefore, in order to further improve the snow melting effect of the photovoltaic module and melt the snow at different positions on the surface of the photovoltaic module, the snow removal system of the present application also includes:

[0087] a second rotating module connected to the control module;

[0088] The control module is further used to determine a second target angle of the second reflector, and control the second rotation module to drive the second reflector to the second target angle, so as to reflect the reflected light of the sunlight to the surface of the photovoltaic component.

[0089] It should be noted that, similar to the first rotation module, the second rotation module may be a motor drive module or an electromagnetic drive module. The motor drive module may be a DC motor drive module, a stepper motor drive module, a servo motor drive module, etc. The control module controls the second rotation module to rotate, thereby driving the second reflector to rotate, thereby achieving the effect of adjusting the angle of the second reflector to reflect the reflected light of the sun's rays to the surface of the photovoltaic module.

[0090] It should be noted that the reflected light of the sun here can be Figure 1 The light that is perpendicular to the horizontal plane.

[0091] It should be noted that the second target angle of the second reflector is the angle between the second reflector and the horizontal plane, also known as the inclination angle of the second reflector. Figure 1 θ in it. It can be calculated according to the formula θ = 45°-0.5×α, where α can be the angle between the snow accumulation position of the photovoltaic module and the line connecting the second reflector and the horizontal plane, so that it can be ensured that the vertically incident light reflected by the first reflector can be reflected by the second reflector to illuminate the target snow accumulation position of the snow accumulation contour. The target snow accumulation position here can be the coordinates of the center point of the snow accumulation contour or the coordinates of any position point of the snow accumulation contour.

[0092] It should be noted that, at this time, the first reflector can be fixed or feedback-adjusted according to the snow removal effect.

[0093] In a feasible implementation, the second target angle of the second reflector can be determined based on the position of snow on the photovoltaic component, or based on the position of snow on the photovoltaic component and the first target angle of the first reflector, or by other methods.

[0094] In this embodiment, by setting a second rotation module, the control module can determine the second target angle of the second reflector, and control the second rotation module to drive the second reflector to the second target angle, so as to reflect the reflected light of the sunlight to the surface of the photovoltaic component, thereby improving the snow melting effect of the photovoltaic component and realizing the melting of snow at different positions on the surface of the photovoltaic component.

[0095] Furthermore, since the amount of sunlight reflected by a second reflector is limited, the melting rate of snow on the surface of the photovoltaic module is slow. In order to increase the melting rate of snow on the surface of the photovoltaic module, multiple sub-reflectors can be set, such as multiple small plane mirrors. By adjusting the inclination angle of each second reflector, each reflector can reflect sunlight to the photovoltaic module, increase the light concentration temperature, and thus increase the melting rate of snow on the surface of the photovoltaic module.

[0096] Specifically, the second reflector includes a plurality of sub-reflectors, and the rotation modules corresponding to each sub-reflector are connected to the control module; the control module is also used to determine the target angle of each sub-reflector, and control the rotation modules corresponding to each sub-reflector to rotate in sequence according to a preset time interval to adjust the corresponding sub-reflector to the corresponding target angle, so that each sub-reflector reflects the reflected light of the sunlight to the surface of the photovoltaic module in sequence.

[0097] It should be noted that each sub-reflector is provided with a corresponding rotation module, and the control module drives the corresponding sub-reflector to rotate by controlling the corresponding rotation module to rotate, thereby achieving adjustment of the inclination angle of the corresponding reflector.

[0098] It should be noted that the target angles corresponding to the various sub-reflectors may be the same or different, and the target angles here may be inclination angles or azimuth angles. The target angles corresponding to the various sub-reflectors may be determined based on the snow accumulation position on the photovoltaic module, or may be determined based on the snow accumulation position on the photovoltaic module and the second target angle of the first reflector, or may be determined based on other methods. In addition, the number of sub-reflectors that need to be adjusted, the positions of the various sub-reflectors in the partial sub-reflectors, and the target angles of the various sub-reflectors may be determined from all the sub-reflectors based on the snow accumulation area of ​​the photovoltaic module, thereby realizing adaptive scheduling and control of the sub-reflectors according to different snow removal scene requirements, making the snow removal process of the photovoltaic module more intelligent, and at the same time being able to reasonably allocate resources to avoid waste of resources.

[0099] When a large number of sub-reflectors are adjusted at the same time, the concentration of reflected light may cause local temperature rise, thereby causing damage to the photovoltaic modules. In order to prevent too many sub-reflectors from being put into use at one time, causing excessive temperature and thus damaging the photovoltaic modules, the rotation modules corresponding to each sub-reflector can be controlled in sequence according to a preset time interval to adjust the corresponding sub-reflector to the corresponding target angle, so that each of the sub-reflectors can reflect the reflected light of the sunlight to the surface of the photovoltaic module in turn.

[0100] The preset time interval can be set according to the actual situation. For example, the preset time interval can be set to 10 minutes, which is determined according to the arrangement order of each sub-reflector. For example, assuming that there are 3 sub-reflectors, the target angle of the first sub-reflector is adjusted at 10 o'clock, the target angle of the second sub-reflector is adjusted at 10:10, and the target angle of the third sub-reflector is adjusted at 10:20. In actual use, the preset time interval can be adjusted according to the actual situation. For example, if it is found that the snow melting speed of the photovoltaic module is slow, the preset time interval can be appropriately shortened; if it is found that the amount of snow on the photovoltaic module is small, the preset time interval can be appropriately extended.

[0101] In this embodiment, by setting a plurality of sub-reflectors, for example, setting a plurality of small plane mirrors, and by adjusting the inclination angle of each second reflector, each reflector can reflect sunlight to the same photovoltaic module or photovoltaic string, thereby increasing the light concentration temperature, thereby increasing the melting rate of snow on the surface of the photovoltaic module. In addition, in order to prevent the risk of damage to the photovoltaic module caused by the concentration of reflected light when a large number of sub-reflectors are adjusted at the same time, the present embodiment controls the rotation module corresponding to each sub-reflector to rotate in sequence according to a preset time interval to adjust the corresponding sub-reflector to the corresponding target angle, so as to reduce the risk of damage to the photovoltaic module.

[0102] Of course, in practical applications, multiple small plane mirrors can be controlled to irradiate different photovoltaic modules or photovoltaic strings respectively, which can melt snow over a larger area.

[0103] Furthermore, since the second target angle of the second reflector needs to be determined based on the distance between the second reflector and the target snow accumulation position, that is, the distance between the second reflector and the target snow accumulation position is a prerequisite for determining the second target angle of the second reflector, and the distance between the second reflector and the target snow accumulation position is based on the need to accurately determine the target snow accumulation position. Therefore, determining the target snow accumulation position is crucial. In order to achieve accurate identification of the target snow accumulation position, the snow removal system of the present application also includes:

[0104] An image acquisition module and a laser ranging module connected to the control module, wherein the image acquisition module and the laser ranging module are arranged within a preset range of the second reflector;

[0105] The control module is further used to determine the second target angle based on the image captured by the image acquisition module and the measurement result of the laser ranging module.

[0106] It should be noted that the image acquisition module and the laser ranging module can be set on the same column, and the image acquisition module and the laser ranging module need to be set within a preset range of the second reflector, for example, within 10 cm of the second reflector, and the image acquisition module and the laser ranging module do not block the second reflector.

[0107] It should be noted that the installation angles of the image acquisition module and the laser ranging module can be fixed or adjusted according to actual conditions.

[0108] It should be noted that the image acquisition module is used to acquire images of the photovoltaic module, and the laser ranging module is used to measure the distance between the laser ranging module and the snow accumulation position of the photovoltaic module.

[0109] In a feasible implementation, the approximate location of the snow accumulation can be determined by first using the image of the photovoltaic assembly captured by the image acquisition module, and then the precise location of the snow accumulation can be determined using the measurement result of the laser ranging module.

[0110] In this embodiment, the approximate position of the snow is determined by the image of the photovoltaic assembly captured by the image acquisition module, and the precise position of the snow is determined by the measurement result of the laser ranging module, thereby achieving accurate identification of the snow position.

[0111] Furthermore, in order to improve the accuracy of the images collected by the image acquisition module and the accuracy of the measurement results of the laser ranging module, the accuracy of the target snow position can be further improved. In this embodiment, the snow removal system also includes:

[0112] A third rotation module and a fourth rotation module connected to the control module;

[0113] The control module is further used to determine an initial snow accumulation position of the photovoltaic component based on the image, control the third rotation module to rotate so that the initial snow accumulation position is located at the center of the screen of the image acquisition module, and control the fourth rotation module to rotate according to the angle information of the initial snow accumulation position relative to the image acquisition module to adjust the angle of the laser ranging module, so that the light reflected by the laser ranging module to the photovoltaic component overlaps with the light spot of the photovoltaic component and the initial snow accumulation position, thereby obtaining the measurement result of the laser ranging module.

[0114] It should be noted that the third rotation module and the fourth rotation module here are similar to the first rotation module and the second rotation module mentioned above, the difference is that the third rotation module is used to drive the image acquisition module to rotate, and the fourth rotation module is used to drive the laser ranging module to rotate.

[0115] It should be noted that the angle information of the initial snow position relative to the image acquisition module may be the approximate azimuth angle and the approximate pitch angle of the initial snow position relative to the image acquisition module.

[0116] In actual use, the image acquisition module fixes an initial position, collects images of the photovoltaic module, and determines the initial snow position of the photovoltaic module through the images of the photovoltaic module. The third rotation module can be controlled to rotate so that the initial snow position is located at the center of the image acquisition module's screen, and the angles of the image acquisition module's rotation in the horizontal and vertical directions are recorded at this time. The azimuth and pitch angles of the initial position of the image acquisition module are known, and the approximate azimuth (horizontal direction) and approximate pitch angle (vertical direction) of the initial snow position relative to the image acquisition module are calculated. Due to the distortion of the lens of the image acquisition module, the azimuth and pitch angles calculated here are not the real azimuth and pitch angles, but approximate azimuth and approximate pitch angles. Next, the orientation of the laser ranging module is adjusted according to the approximate azimuth and pitch angle of the initial snow accumulation position relative to the image acquisition module, that is, the angle of the laser ranging module is adjusted. At the same time, the image acquisition module detects the light spot of the light emitted by the laser ranging module to the photovoltaic module in real time. When the light spot coincides with the initial snow accumulation position, the adjustment of the laser ranging module is stopped, and the azimuth, pitch angle and ranging distance of the laser ranging module are recorded at this time. In the above manner, the target snow accumulation position can be accurately determined, and the azimuth, pitch angle and ranging distance of the laser ranging module can be accurately determined, so as to facilitate the determination of the second target angle of the subsequent second reflector.

[0117] It should be noted that the above-mentioned light spots have colors and can be captured by the image acquisition module.

[0118] It should be noted that the azimuth angle, pitch angle and ranging distance of the above-mentioned laser ranging module are the measurement results of the laser ranging module.

[0119] In actual use, after determining the target snow position, the azimuth, pitch angle and ranging distance of the laser ranging module in the above manner, the second target angle of the second reflector can be determined in the following manner: Since the relative position of the second reflector and the laser ranging module is known, based on geometric knowledge, two sides of the triangle are known, namely, the length from the laser ranging module to the target snow position, the length from the second reflector to the laser ranging module, and the angle between these two sides, the third side and the remaining angles can be calculated, thereby calculating the azimuth and pitch angle of the target snow position relative to the second reflector, and determining the second target angle of the second reflector. By adjusting the azimuth angle of the second reflector, the normal of the second reflector is made parallel to the plane formed by the line connecting the target snow accumulation position and the second reflector and their projection on the horizontal plane, and the inclination angle of the second reflector is adjusted to make its inclination angle with the horizontal plane θ=45°-0.5×α, wherein α is the angle between the line connecting the target snow accumulation position and the second reflector and the horizontal plane. This ensures that the vertically incident light can illuminate the target snow accumulation position after being reflected by the second reflector.

[0120] In this embodiment, the third rotation module and the fourth rotation module are provided to respectively adjust the image acquisition module and the laser ranging module, thereby improving the accuracy of the image acquired by the image acquisition module and improving the accuracy of the measurement result of the laser ranging module.

[0121] Furthermore, in order to prevent the light reflected by the first reflector from irradiating a person or object and causing danger, and to prevent dust or snow from accumulating on the surface of the first reflector, the snow removal system of the present application further includes:

[0122] A shielding module, the shielding module is connected to the control module;

[0123] The control module is further used to control the shielding module to open when it is determined that snow is accumulated on the photovoltaic assembly; or to control the shielding module to close when it is determined that snow is not accumulated on the photovoltaic assembly.

[0124] It should be noted that the shielding module may include a shielding component and a control component, wherein the shielding component may be a shielding cloth or other components that can shield the first reflector. The control component may be a motor, etc., for controlling the shielding component to be in different states. For example, when the control module determines that there is snow on the photovoltaic component, the control module sends a signal to the control component to control the shielding component to open, so that the first reflector can reflect sunlight to the second reflector. Alternatively, when the control module determines that there is no snow on the photovoltaic component based on the image of the photovoltaic component, the control module sends a signal to the control component to control the shielding component to close, so as to avoid the light reflected by the first reflector from irradiating people or objects and causing danger, and at the same time prevent dust or snow from accumulating on the surface of the first reflector.

[0125] In this embodiment, a shielding module is provided. When snow accumulates on the photovoltaic module, the shielding module is controlled to open so that the first reflector can reflect sunlight to the second reflector. When snow does not accumulate on the photovoltaic module, the shielding module is controlled to close to prevent the light reflected by the first reflector from irradiating people or objects and causing danger, while preventing dust or snow from accumulating on the surface of the first reflector.

[0126] Based on the same inventive concept, the present application proposes a snow removal method.

[0127] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a snow removal device, etc. The following takes a snow removal device as an example to illustrate this embodiment and the following embodiments.

[0128] In this embodiment, the snow removal method includes step S10:

[0129] Step S10, when it is detected that there is snow on the surface of the photovoltaic component, the angles of the first reflector and the second reflector are adjusted to reflect sunlight to the surface of the photovoltaic component.

[0130] This embodiment provides a snow removal method. When snow is detected on the surface of a photovoltaic module, the angles of the first reflector and the second reflector are adjusted so that sunlight can be focused on the surface of the photovoltaic module to melt the snow on the surface of the photovoltaic module. This snow removal method is not limited by the type of bracket and does not require adjustment of the installation angle of the photovoltaic module. It is not only applicable to photovoltaic power station scenarios equipped with tracking brackets, but also to photovoltaic power station scenarios equipped with fixed brackets, and can meet the snow removal needs of different photovoltaic power station scenarios.

[0131] Furthermore, in order to accurately identify whether there is snow on the surface of the photovoltaic module, before step S10, the following steps are also included:

[0132] Step S01, performing semantic segmentation on the currently acquired image to obtain the outline of the photovoltaic string;

[0133] Step S02, extracting the contour in the photovoltaic string contour;

[0134] Step S03, when the color value of the pixel point in the extracted contour is a preset color value and the extracted contour is located within the contour of the photovoltaic string, it is determined that snow is present on the surface of the photovoltaic module corresponding to the extracted contour, and the extracted contour is marked as a snow contour;

[0135] Alternatively, in step S04, when the color value of the pixel point in the extracted outline is not the preset color value or the extracted outline is located outside the outline of the photovoltaic string, it is determined that there is no snow on the surface of the photovoltaic component corresponding to the extracted outline.

[0136] In this embodiment, the image acquisition module fixes an initial position, and when the photovoltaic components are not covered with snow, it takes an image of the photovoltaic guide line, identifies the photovoltaic string (referring to the photovoltaic components arranged continuously) through the semantic segmentation algorithm, and extracts and saves the outline of the photovoltaic string. The image acquisition module maintains the initial position, detects the outline of the photovoltaic string through the outline detection algorithm, extracts each outline in the outline of the photovoltaic string, detects the color inside each extracted outline, and selects the outlines whose pixel color values ​​are close to white and are located inside the outline of the photovoltaic string, and then determines that there is snow on the surface of the photovoltaic component corresponding to the outline. Otherwise, it is determined that there is no snow on the surface of the photovoltaic component corresponding to the extracted outline.

[0137] It should be noted that the above-mentioned semantic segmentation algorithm and contour detection algorithm are common algorithms in this field and will not be described in detail here.

[0138] It should be noted that the preset color value can be set to (255, 255, 255), which is used to identify whether there is white snow in the outline of the photovoltaic module.

[0139] In this embodiment, the presence of snow on the surface of the photovoltaic module is determined by a semantic segmentation algorithm and a contour detection algorithm, thereby improving the accuracy and efficiency of snow recognition.

[0140] Further, see Figure 2 In order to achieve snow removal for all photovoltaic modules with snow accumulation and improve the snow removal effect. After step S03, step S10 includes the following steps, or step S10 includes the following steps:

[0141] Step S11, when multiple snow contours are detected, the snow accumulation area of ​​each of the snow contours is determined respectively;

[0142] Step S12, sorting the target snow positions of the snow contours according to the snow areas of the snow contours, wherein the target snow positions are the coordinates of the center points of the snow contours;

[0143] It should be noted that the snow contour can be regular or irregular. When the snow contour is regular, the coordinates of the center point of the snow contour can be determined as the target snow position. When the snow contour is irregular, the coordinates of the center point of the snow contour can be calculated and determined as the target snow position. The target snow position can also be the position of any point in the snow contour.

[0144] It should be noted that the snow accumulation area of ​​each snow contour may be different. The target snow position of each snow contour can be sorted based on the snow accumulation area of ​​each snow contour, and then the snow can be removed from each snow contour in turn according to the snow accumulation area. For example, the snow can be removed from the corresponding snow contours in order from large to small snow accumulation area.

[0145] It should be noted that, because the light reflected by the second reflector is a surface rather than a point, selecting the center point coordinates of the photovoltaic module outline can minimize the possibility that light will irradiate outside the photovoltaic module outline and damage the photovoltaic module or other objects.

[0146] Step S13, determining the angle of the first reflector and the angle of the second reflector at each target snow accumulation position;

[0147] In this embodiment, the angle of the first reflector can be determined first, and then the initial snow accumulation position of the photovoltaic component can be determined based on the currently collected image; the third rotation module can be controlled to rotate so that the initial snow accumulation position is located at the center of the screen of the image acquisition module; the fourth rotation module can be controlled to rotate according to the angle information of the initial snow accumulation position relative to the image acquisition module to adjust the angle of the laser ranging module, so that after the light spot of the photovoltaic component overlaps with the initial snow accumulation position, the light emitted by the laser ranging module to the photovoltaic component determines that the initial snow accumulation position is the target snow accumulation position, and obtains the measurement result of the laser ranging module; based on the measurement result, the angle of the second reflector is determined.

[0148] It should be noted that the calculation method of the angle of the first reflector and the angle of the second reflector can be referred to above and will not be elaborated here.

[0149] Step S14, based on the sorting result, the angle of the first reflector and the angle of the second reflector at the corresponding target snow accumulation position are adjusted in sequence to reflect the reflected light of the sunlight to the corresponding target snow accumulation position in sequence.

[0150] It should be noted that the snow removal order of the photovoltaic components at each target snow accumulation position can be determined based on the sorting result. At different target snow accumulation positions, the angle of the first reflector and the angle of the second reflector are different.

[0151] In one possible implementation, refer to Figure 3 , step S14 comprises:

[0152] Step S141, adjusting the angle of the first reflector at the current target snow position so that the first reflector reflects sunlight to the second reflector;

[0153] Step S142, adjusting the angle of the second reflector at the current target snow accumulation position so that the second reflector reflects the reflected light of the sunlight to the current target snow accumulation position;

[0154] Step S143, when it is detected that the snow area within the outline of the photovoltaic assembly corresponding to the current target snow position is smaller than the preset area, the next target snow position is determined, the current target snow position is updated with the next target snow position, and the step of adjusting the angle of the first reflector at the current target snow position is returned to be executed so that the first reflector reflects sunlight to the second reflector;

[0155] It should be noted that the next target snow position can be determined based on the sorting result after sorting the target snow positions. The next target snow position is the next target snow position of the current target snow position in the sorting result, and the next target snow position and the current target snow position are located in different photovoltaic modules.

[0156] Step S144, when it is detected that the snow accumulation area within the photovoltaic assembly outline corresponding to the current target snow accumulation position is smaller than the preset area, and the current target snow accumulation position is the last target snow accumulation position, the snow removal operation is stopped.

[0157] It should be noted that the preset area can be set according to actual conditions. When the snow area within the outline of the photovoltaic module corresponding to the target snow position is smaller than the preset area, it means that the snow in the photovoltaic module has melted, and the snow removal operation of the next photovoltaic module is then performed. The snow removal operation is exited after all the snow on all photovoltaic modules with snow has been cleared.

[0158] In this embodiment, at different target snow accumulation positions, by adjusting the angle of the first reflector and the angle of the second reflector, the reflected light of the sunlight is reflected to the corresponding target snow accumulation position, thereby achieving the effect of snow removal for photovoltaic components at different target snow accumulation positions.

[0159] Further, when the second reflector includes multiple sub-reflectors, step S141 includes: controlling the rotation modules corresponding to each of the sub-reflectors to rotate in sequence according to a preset time interval to adjust the corresponding sub-reflectors to corresponding angles, so that each of the sub-reflectors reflects the reflected light of the sunlight to the current target snow accumulation position in sequence.

[0160] It should be noted that the specific method of adjusting the angle of each sub-reflector can be found above and will not be elaborated here.

[0161] In this embodiment, by setting a plurality of sub-reflectors, for example, setting a plurality of small plane mirrors, and by adjusting the inclination angle of each second reflector, each reflector can reflect sunlight to the photovoltaic module, thereby increasing the light concentration temperature and thus increasing the melting rate of snow on the surface of the photovoltaic module. In addition, in order to prevent the risk of damage to the photovoltaic module caused by the concentration of reflected light and the increase of local temperature when a large number of sub-reflectors are adjusted at the same time, this embodiment controls the rotation module corresponding to each sub-reflector to rotate in sequence according to a preset time interval to adjust the corresponding sub-reflector to the corresponding target angle, so as to reduce the risk of damage to the photovoltaic module.

[0162] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the snow removal method of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0163] The present application provides a snow removal device, referring to Figure 4 The snow removal device includes: at least one processor 1001; and a memory 1002 that is communicatively connected to the at least one processor; wherein the memory stores a snow removal program that can be executed by the at least one processor, and the snow removal program is executed by the at least one processor so that the at least one processor can execute the above-mentioned snow removal method.

[0164] The snow removal device provided by the present application adopts the snow removal method in the above embodiment and can meet the snow removal requirements in different photovoltaic power station scenarios. Compared with the prior art, the beneficial effects of the snow removal device provided by the present application are the same as the beneficial effects of the snow removal method provided by the above embodiment, and the other technical features of the snow removal device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0165] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0166] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0167] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the snow removal method in the above-mentioned embodiment.

[0168] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0169] The computer-readable storage medium may be included in the snow removal device; or may exist independently without being assembled into the snow removal device.

[0170] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the snow removal device, the snow removal device: when detecting the presence of snow on the surface of the photovoltaic component, adjusts the angles of the first reflector and the second reflector to reflect sunlight to the surface of the photovoltaic component.

[0171] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0172] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0173] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0174] The readable storage medium provided in this application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned snow removal method, and can meet the snow removal requirements in different photovoltaic power station scenarios. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the snow removal method provided in the above-mentioned embodiment, and will not be repeated here.

[0175] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A snow removal system, characterized in that: The snow removal system comprises: a first reflector, for reflecting sunlight to a second reflector; The second reflector is located above the first reflector and is used to reflect the reflected light of the sunlight to the surface of the photovoltaic module, so that the snow on the surface of the photovoltaic module melts.

2. The system according to claim 1, characterized in that The snow removal system further comprises: Control module; a first rotating module connected to the control module; The control module is used to determine a first target angle of the first reflector according to a current angle of sunlight, and control the first rotation module to drive the first reflector to the first target angle so as to reflect the sunlight to the second reflector.

3. The system according to claim 2, characterized in that The snow removal system further comprises: a second rotating module connected to the control module; The control module is further used to determine a second target angle of the second reflector, and control the second rotation module to drive the second reflector to the second target angle, so as to reflect the reflected light of the sunlight to the surface of the photovoltaic component.

4. The snow removal system according to claim 3, characterized in that: The second reflector includes a plurality of sub-reflectors, and the rotation module corresponding to each sub-reflector is connected to the control module; The control module is also used to determine the target angle of each sub-reflector, and control the rotation modules corresponding to each sub-reflector to rotate in sequence according to a preset time interval to adjust the corresponding sub-reflector to the corresponding target angle, so that each sub-reflector reflects the reflected light of the sunlight to the surface of the photovoltaic component in sequence.

5. The system according to claim 3, characterized in that The snow removal system further comprises: An image acquisition module and a laser ranging module connected to the control module, wherein the image acquisition module and the laser ranging module are arranged within a preset range of the second reflector; The control module is further used to determine the second target angle based on the image captured by the image acquisition module and the measurement result of the laser ranging module.

6. The system according to claim 5, characterized in that The snow removal system further comprises: A third rotation module and a fourth rotation module connected to the control module; The control module is further used to determine an initial snow accumulation position of the photovoltaic component based on the image, control the third rotation module to rotate so that the initial snow accumulation position is located at the center of the screen of the image acquisition module, and control the fourth rotation module to rotate according to the angle information of the initial snow accumulation position relative to the image acquisition module to adjust the angle of the laser ranging module, so that the light emitted by the laser ranging module to the photovoltaic component overlaps with the light spot of the photovoltaic component and the initial snow accumulation position, and obtain the measurement result of the laser ranging module.

7. The snow removal system according to any one of claims 2 to 6, characterized in that: The snow removal system further comprises: A shielding module, the shielding module is connected to the control module; The control module is further used to control the shielding module to open and expose the first reflector when it is determined that snow is accumulated on the photovoltaic assembly; or to control the shielding module to close and cover the first reflector when it is determined that snow is not accumulated on the photovoltaic assembly.

8. A snow removal method, characterized in that: Applied to the snow removal system according to any one of claims 1 to 7, the method comprises: When snow is detected on the surface of the photovoltaic component, the angles of the first reflector and the second reflector are adjusted to reflect sunlight to the surface of the photovoltaic component.

9. The snow removal method according to claim 8, characterized in that: Before the step of adjusting the angles of the first reflector and the second reflector when snow is detected on the surface of the photovoltaic assembly, the method further includes: Perform semantic segmentation on the currently acquired image to obtain the outline of the photovoltaic string; Extracting a contour from the photovoltaic string contour; When the color value of the pixel point in the extracted contour is a preset color value and the extracted contour is located within the contour of the photovoltaic string, it is determined that snow exists on the surface of the photovoltaic component corresponding to the extracted contour, and the extracted contour is marked as a snow contour; Alternatively, when the color value of the pixel point in the extracted outline is not the preset color value or the extracted outline is located outside the outline of the photovoltaic string, it is determined that there is no snow on the surface of the photovoltaic component corresponding to the extracted outline.

10. The snow removal method according to claim 9, characterized in that: When snow is detected on the surface of the photovoltaic assembly, the step of adjusting the angles of the first reflector and the second reflector comprises: When multiple snow contours are detected, the snow accumulation area of ​​each of the snow contours is determined respectively; The target snow accumulation position of each of the snow accumulation contours is sorted according to the snow accumulation area of ​​each of the snow accumulation contours, wherein the target snow accumulation position is the coordinate of the center point of the snow accumulation contour; Determine the angle of the first reflector and the angle of the second reflector at each target snow position; Based on the sorting result, the angle of the first reflector and the angle of the second reflector are adjusted in sequence at the corresponding target snow accumulation positions to reflect the reflected light of the sunlight to the corresponding target snow accumulation positions in sequence.

11. The snow removal method according to claim 10, characterized in that: The step of sequentially adjusting the angle of the first reflector and the angle of the second reflector at the corresponding target snow accumulation position based on the sorting result to sequentially reflect the reflected light of the sunlight to the corresponding target snow accumulation position comprises: adjusting the angle of the first reflector at the current target snow position so that the first reflector reflects sunlight to the second reflector; adjusting the angle of the second reflector at the current target snow accumulation position so that the second reflector reflects the reflected light of the sunlight to the current target snow accumulation position; When it is detected that the snow area within the photovoltaic assembly outline corresponding to the current target snow position is smaller than the preset area, a next target snow position is determined, the current target snow position is updated with the next target snow position, and the step of adjusting the angle of the first reflector at the current target snow position is returned to be executed so that the first reflector reflects sunlight to the second reflector; When it is detected that the snow accumulation area within the photovoltaic component outline corresponding to the current target snow accumulation position is smaller than the preset area and the current target snow accumulation position is the last target snow accumulation position, the snow removal operation is stopped.

12. The snow removal method according to claim 11, characterized in that: When the second reflector includes a plurality of sub-reflectors, the step of adjusting the angle of the second reflector at the current target snow accumulation position so that the second reflector reflects the reflected light of the sunlight to the current target snow accumulation position includes: The rotation modules corresponding to the sub-reflectors are controlled to rotate in sequence according to preset time intervals, and the corresponding sub-reflectors are adjusted to corresponding angles, so that the sub-reflectors reflect the reflected light of the sunlight to the current target snow accumulation position in sequence.

13. A snow removal device, characterized in that: The snow removal device comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the snow removal method according to any one of claims 8 to 12.

14. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the snow removal method according to any one of claims 8 to 12 are implemented.

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