Bird droppings removing photovoltaic cleaning system

Abstract

The utility model relates to a photovoltaic cleaning system for removing bird droppings, which detects bird droppings pollution on a photovoltaic panel through a sensing group, enables a scraper blade to remove the bird droppings at a place with the bird droppings, reduces continuous contact of the scraper blade with the photovoltaic panel, and reduces influence of automatic cleaning on normal power attenuation speed of the photovoltaic panel. Bird droppings are sprayed with clean water, then the surface of the photovoltaic panel is cleaned through the adhesive scraping strip when the adhesive force of the bird droppings is reduced, and the problems that the bird droppings on the photovoltaic panel are difficult to remove, and the photovoltaic panel is damaged by hard removal are solved. Furthermore, when bird droppings are not removed, the cleaning robot can sweep dust on the photovoltaic panel in a dry mode, and the cleaning robot of the system can also serve as a snow remover to remove loose accumulated snow with the thickness smaller than 4 cm in an area where the snowing amount is small. According to the technical scheme, bird droppings attached to the surface of the photovoltaic panel can be timely and automatically cleaned, the influence of the bird droppings on the service life of the photovoltaic panel is greatly reduced, and the service life of the photovoltaic panel is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic module field, concretely relates to a bird dropping photovoltaic cleaning system. BACKGROUND

[0002] Photovoltaic panel is also called "solar chip" or "photovoltaic cell", which is a kind of photovoltaic semiconductor sheet for directly generating electricity by using sunlight, and it is the most important part of solar power generation system, and solar power generation panel can be set anywhere with good sunlight, but photovoltaic panel is easily polluted by bird droppings because birds like to stay on photovoltaic panel and its accessories. Bird droppings have strong adhesion and acidity, which not only affects the power generation effect of photovoltaic panel, but also has corrosive effect on the surface of photovoltaic panel, and can form hot spot effect, causing the service life of photovoltaic panel to be shortened, so it is important to clean bird droppings on the surface of photovoltaic panel in time.

[0003] Bird droppings are not easy to remove after drying, and simple brushing is not easy to remove, and surfactant needs to be used for better cleaning, so the maintenance cost is high, and the safety of maintenance work is difficult to guarantee. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the utility model provides a kind of bird dropping photovoltaic cleaning system, solve the problem that bird dropping on the existing photovoltaic panel is not easy to clean.

[0005] To achieve the above purpose, the present application provides a kind of bird dropping photovoltaic cleaning system, applicable to photovoltaic module, photovoltaic module includes fixed support and photovoltaic panel, system includes water spraying component, stop return component, cleaning robot and control unit, water spraying component is set on fixed support, water spraying component has spray end, spray end is used to spray cleaning liquid to photovoltaic panel;Stop return component includes stop frame and return frame, stop frame and return frame are oppositely arranged at both ends of photovoltaic module;Cleaning robot includes first base, scraper and sensing group, first base is slidably connected with stop frame, return frame and fixed support, scraper is arranged on first base, sensing group is arranged on first base, sensing group is used to collect image information of photovoltaic panel;Control unit is electrically connected with cleaning robot, water spraying component and stop return component.

[0006] In some embodiments, water spraying component includes spray pipeline, a plurality of first spray pipes and a plurality of first valves, spray pipeline is laid along fixed support;Each first spray pipe is connected with spray pipeline, a plurality of first spray pipes are arranged at intervals along the extension direction of spray pipeline, at least one first spray pipe is provided on one photovoltaic panel, and spray end is provided on the first spray pipe;Each first valve is arranged on one first spray pipe, and the first valve is electrically connected with the control unit.

[0007] In some embodiments, the water spraying assembly comprises a drone assembly, a second spraying pipe, a water storage tank and a second valve. The drone assembly comprises a nest and a drone. The drone is electrically connected to the control unit. The nest is detachably connected to the drone. The second spraying pipe is arranged on the drone. The second spraying pipe is provided with a spraying end. The water storage tank is arranged on the drone. The water storage tank is in communication with the second spraying pipe. The second valve is arranged on the second spraying pipe. The second valve is electrically connected to the control unit.

[0008] In some embodiments, the sensing group comprises a second base, an image processing module 132, a first adapter, a camera and a first protective cover. The second base is arranged on the first base. The image processing module is arranged on the second base. The image processing module is electrically connected to the control unit. The first adapter is arranged on the second base. The first adapter is perpendicular to the second base. The camera is arranged on the first adapter. The camera faces the photovoltaic panel. The camera is electrically connected to the image processing module. The first protective cover is arranged on the second base. The first protective cover is arranged on the periphery of the image processing module.

[0009] In some embodiments, the number of sensing groups is two. The two sensing groups are arranged side by side on the first base.

[0010] In some embodiments, the cleaning robot further comprises a first support shaft, a first driving unit and a second adapter. The first support shaft is arranged on the first base. The first support shaft is rotatable relative to the first base. The first driving unit is in transmission connection with the first support shaft. The first driving unit is arranged on the first base. The first driving unit is electrically connected to the control unit. The second adapter is arranged on the first support shaft. The second adapter is fixedly connected to the first support shaft. The second adapter is provided with a scraping blade.

[0011] In some embodiments, the first base comprises a first connecting frame, a second connecting frame and a first support plate. The first connecting frame and the second connecting frame are arranged opposite to each other. The first support plate is arranged between the first connecting frame and the second connecting frame. The cleaning robot further comprises a first moving group, a second moving group, a cleaning roller and a second driving unit. The first moving group is arranged on the first connecting frame. The second moving group is arranged on the second connecting frame. The cleaning roller is arranged below the first support plate. The second driving unit is arranged on the first connecting frame or the second connecting frame. The second driving unit is in transmission connection with the cleaning roller.

[0012] In some embodiments, the first moving group comprises a first roller, a third driving unit and a first hanger wheel, the first roller is arranged on the first connecting frame; the third driving unit is in transmission connection with the first roller; the first hanger wheel is arranged on the first connecting frame, the rotation axis of the first hanger wheel is perpendicular to the rotation axis of the first roller, and the first hanger wheel is in transmission connection with the third driving unit; the second moving group comprises a second roller, the second roller is arranged on the second connecting frame, the second roller is arranged opposite to the first roller, and the second roller is in transmission connection with the third driving unit.

[0013] In some embodiments, the returning assembly further comprises a first fixed rod, a first sensor, a first stop block and a charging interface; the number of the first fixed rods is two, and the two first fixed rods are arranged opposite to each other on the parking frame; the first sensor is arranged on the parking frame, and is used for detecting the position of the cleaning robot; the first stop block is arranged on the parking frame, and can be lapped on the outer surface of the cleaning robot to stop the cleaning robot; and the charging interface is arranged on the parking frame, and is used for charging the cleaning robot.

[0014] In some embodiments, the returning assembly further comprises a second fixed rod, a second sensor and a second stop block, the number of the second fixed rods is two, and the two second fixed rods are arranged opposite to each other on the returning frame; the second sensor is arranged on the returning frame, and is used for detecting the position of the cleaning robot; and the second stop block is arranged on the returning frame, and can be lapped on the outer surface of the cleaning robot to stop the cleaning robot.

[0015] Differing from the prior art, in the above technical solution, the bird droppings on the photovoltaic panel are detected by the sensing group, the wiper removes the bird droppings in the place where the bird droppings exist, the continuous contact of the wiper with the photovoltaic panel is reduced, and the normal power attenuation speed of the photovoltaic panel affected by the automatic cleaning is reduced; the bird droppings are sprayed with clean water, and then the surface of the photovoltaic panel is cleaned by the wiper when the adhesion of the bird droppings decreases, so that the problem that the bird droppings on the photovoltaic panel are difficult to remove and hard removal damages the photovoltaic panel is solved. Further, when the bird droppings are not removed, the cleaning robot can clean the dust on the photovoltaic panel in a dry manner, and in an area where the snowfall is not large, the cleaning robot of the system can also be used as a snow remover to remove snow with a thickness of less than 4 cm. The technical solution can clean the bird droppings adhered to the surface of the photovoltaic panel in time and automatically, greatly reduces the influence of the bird droppings on the service life of the photovoltaic panel, and prolongs the service life of the photovoltaic panel.

[0016] The above content related to the utility model is only a summary of the technical scheme of the utility model, in order to enable the ordinary skilled in the art to understand the technical scheme of the utility model more clearly, and then can be implemented according to the content of the description and the drawings, and in order to let the above-mentioned purpose and other purposes, characteristics and advantages of the utility model can be more easily understood, the following is described in conjunction with the specific embodiment and the drawings of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings are only used to show the principles, implementation manners, applications, characteristics and effects of the specific embodiments and other related contents of the utility model, and cannot be considered as the limitation of the utility model.

[0018] In the drawings of the specification:

[0019] Figure 1 The schematic view of the cleaning robot is described for the specific embodiment;

[0020] Figure 2 The schematic view of the water spraying assembly is described for the specific embodiment;

[0021] Figure 3 The schematic view of the sensing group is described for the specific embodiment;

[0022] Figure 4 The schematic view of the wiper is described for the specific embodiment;

[0023] Figure 5 The schematic view of the stopping and returning assembly is described for the specific embodiment.

[0024] The reference signs involved in the above drawings are explained as follows:

[0025] 1、cleaning robot;

[0026] 11、first base;

[0027] 111、first connecting frame;

[0028] 112、second connecting frame;

[0029] 113、first support plate;

[0030] 12、wiper;

[0031] 13、sensing group;

[0032] 131、second base;

[0033] 132、image processing module;

[0034] 133、first adapter;

[0035] 134、first shield;

[0036] 135、camera;

[0037] 14、first support shaft;

[0038] 15、second adapter frame;

[0039] 16、first driving unit;

[0040] 17、first moving group;

[0041] 18、second moving group;

[0042] 19、cleaning roller brush;

[0043] 2、stopping and returning assembly;

[0044] 21、stopping frame;

[0045] 22、returning frame;

[0046] 23、first fixed rod;

[0047] 24、first sensor;

[0048] 25、first stopping block;

[0049] 26、charging interface;

[0050] 27、second fixed rod;

[0051] 28、second stopping block;

[0052] 3、photovoltaic assembly;

[0053] 31、fixed support;

[0054] 32、photovoltaic panel;

[0055] 4、water spraying assembly;

[0056] 41、first spraying pipe;

[0057] 42、second spraying pipe;

[0058] 43、spraying pipeline;

[0059] 44、drone;

[0060] 45、nest;

[0061] 5、control unit. DETAILED DESCRIPTION

[0062] To explain possible application scenarios, technical principles, specific embodiments, and the purposes and effects of the present application in detail, the following embodiments are described in detail in combination with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0063] In this paper, the term "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing at various places in the specification does not necessarily refer to the same embodiment, and does not particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0064] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the art to which the present application belongs; the use of related terms in this paper is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0065] In the description of the present application, the phrase "and / or" is a description of the logical relationship between the objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this paper generally represents that the associated objects before and after are a "or" logical relationship.

[0066] In the present application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary or secondary or order relationship between the entities or operations.

[0067] Without more limitations, in the present application, the "includes", "contains", "has" or other similar open expressions used in the sentence are intended to cover non-exclusive inclusion, and these expressions do not exclude the presence of other elements in the process, method or product including the described elements, so that the process, method or product including a series of elements can not only include those limited elements, but also include other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0068] As the same as the understanding in the "Examination Guidelines", in the utility model, "greater than", "less than", "exceed" and the like are understood as not including the number; "above", "below", "within" and the like are understood as including the number. In addition, in the description of the embodiments of the utility model, the meaning of "multiple" is two or more (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times" and the like, unless otherwise explicitly specified.

[0069] In the description of the embodiments of the utility model, the spatial-related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the utility model or for the reader to understand, and do not indicate or imply that the indicated device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, therefore, it cannot be understood as a limitation on the embodiments of the utility model.

[0070] Unless otherwise explicitly specified or limited, in the description of the embodiments of the utility model, the terms "mounting", "connecting", "connecting", "fixing", "setting" and the like should be understood broadly. For example, the "connection" can be fixed connection, or detachable connection, or integrated setting; it can be mechanical connection, or electrical connection, or communication connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art to which the utility model belongs, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0071] Please refer to Figures 1 to 5The embodiment provides a bird droppings photovoltaic cleaning system, which is suitable for a photovoltaic assembly 3, the photovoltaic assembly 3 comprising a fixed support 31 and a photovoltaic panel 32, the system comprising a water spraying assembly 4, a stop-return assembly 2, a cleaning robot 1 and a control unit 5, the water spraying assembly 4 being arranged on the fixed support 31, the water spraying assembly 4 having a spraying end, the spraying end being used for spraying cleaning liquid onto the photovoltaic panel 32; the stop-return assembly 2 comprising a stop frame 21 and a return frame 22, the stop frame 21 and the return frame 22 being oppositely arranged at two ends of the photovoltaic assembly 3; the cleaning robot 1 comprising a first base 11, a scraper 12 and a sensing group 13, the first base 11 being in sliding connection with the stop frame 21, the return frame 22 and the fixed support 31, the scraper 12 being arranged on the first base 11, the sensing group 13 being arranged on the first base 11, and the sensing group 13 being used for collecting image information of the photovoltaic panel 32; and the control unit 5 being in electrical connection with the cleaning robot 1, the water spraying assembly 4 and the stop-return assembly 2.

[0072] In the embodiment, the photovoltaic assembly 3 comprises the fixed support 31 and the photovoltaic panel 32, wherein the photovoltaic panel 32 is a main component for absorbing solar energy, the number of the photovoltaic panel 32 is multiple, the multiple photovoltaic panels 32 are arrayed on the fixed support 31, and the fixed support 31 is a main support structure of the photovoltaic panel 32, and the fixed support 31 is fixedly connected with the ground.

[0073] In the embodiment, the water spraying assembly 4 is arranged on the fixed support 31, the water spraying assembly 4 comprises multiple spraying ends, each spraying end is arranged towards the photovoltaic panel 32, specifically, the spraying end can be understood as a spraying surface of a spray head or an output end of a pipeline, and different understandings of the spraying end can be made according to actual structures. The spraying end is used for spraying cleaning liquid, the cleaning liquid can be a solution containing a surfactant or pure water, and the cleaning liquid can be set according to actual requirements.

[0074] The stop-return assembly 2 comprises a stop frame 21 and a return frame 22, the stop frame 21 and the return frame 22 are arranged at both ends of the photovoltaic assembly 3, specifically, the stop frame 21 is connected with one side of the fixed support 31, the return frame 22 is connected with the other side of the fixed support 31, then the cleaning robot 1 can walk between the stop frame 21, the fixed support 31 and the return frame 22, so as to meet the different functional setting requirements of the cleaning robot 1. Among them, the stop frame 21 is the standby area of the cleaning robot 1, when the cleaning robot 1 does not need to perform cleaning operation, it can directly stop in the area where the stop frame 21 is located to charge, self-cleaning and other operations; the return frame 22 is the return position of the cleaning robot 1, after the cleaning robot 1 performs cleaning on the photovoltaic assembly 3 once, it will reach the return frame 22, bird droppings removal components such as high-pressure water gun can be arranged in the return frame 22 area, so as to effectively remove the bird droppings or other impurities remaining on the wiper 12, garbage cans, garbage slots and the like can be arranged below the return frame 22, so as to facilitate the collection of garbage on the wiper 12, and keep the area where the cleaning robot 1 and the photovoltaic assembly 3 are located clean.

[0075] Specifically, the cleaning robot 1 comprises a first base 11, a wiper 12 and a sensing group 13, wherein the first base 11 is the main support structure of the cleaning robot 1, the wiper 12 is arranged on the first base 11, and the wiper 12 can rotate relative to the first base 11, the sensing group 13 is arranged on the first base 11, and the sensing group 13 can collect image information of the photovoltaic panel 32, when there is bird droppings on the upper surface of the photovoltaic panel 32, there are bird droppings characteristics in the picture information of the sensing group 13, after the control unit 5 identifies the existence of the bird droppings, it will control the wiper 12 to adjust a certain angle to contact the surface of the photovoltaic panel 32, and the bird droppings will be removed from the photovoltaic panel 32 in the process of moving the first base 11, so as to realize the removal of the bird droppings.

[0076] Optionally, the processing steps of spraying first and then shoveling out can be selected, the control unit 5 can control the water spraying assembly 4 to spray the upper surface of the photovoltaic panel 32 after determining the area where the bird droppings exist, and then control the wiper 12 to remove the bird droppings, so as to improve the bird droppings removal efficiency.

[0077] In this embodiment, the control unit 5 can be a PLC single-chip microcomputer, a microcomputer chip and the like, and the control unit 5 is electrically connected with the water spraying assembly 4, the cleaning robot 1 and the stop-return assembly 2.

[0078] The embodiment realizes automatic identification and automatic cleaning process of bird droppings on the photovoltaic module 3 by setting the stop-return assembly 2, the water spraying assembly 4, the cleaning robot 1 and the control unit 5, and uses the stop-return assembly 2 to uniformly store and process the removed bird droppings, so as to maintain the cleanliness of the scraper 12, thereby avoiding the problem that the photovoltaic panel 32 is damaged due to the reciprocating scratch of the photovoltaic panel 32 when the bird droppings are not sufficiently removed, and the water spraying assembly 4 shown in the embodiment can pre-soak the position where the bird droppings are located, so that the bird droppings are easy to clean, the bird droppings removal efficiency of the cleaning robot 1 is improved, the automatic cleaning of the photovoltaic module 3 is realized, and the service life of the photovoltaic panel 32 is prolonged.

[0079] Please refer to Figure 2 In some embodiments, the water spraying assembly 4 comprises a spraying pipeline 43, a plurality of first spraying pipes 41 and a plurality of first valves, the spraying pipeline 43 is laid along the fixed support 31; each first spraying pipe 41 is connected with the spraying pipeline 43, the plurality of first spraying pipes 41 are arranged at intervals along the extension direction of the spraying pipeline 43, and at least one first spraying pipe 41 is arranged on one photovoltaic panel 32; each first valve is arranged on one first spraying pipe 41, and the first valve is electrically connected with the control unit 5.

[0080] The embodiment shows one embodiment of the water spraying assembly 4. Specifically, the water spraying assembly 4 comprises a spraying pipeline 43, a plurality of first spraying pipes 41 and a plurality of first valves, one first valve is arranged on each first spraying pipe 41, and the first valve is electrically connected with the control unit 5. The spraying pipeline 43 is laid along the fixed support 31, and the spraying pipeline 43 can be made of PVC pipeline or iron pipe, and a plurality of first spraying pipes 41 are arranged on the spraying pipeline 43. Preferably, the first spraying pipe 41 is arranged perpendicularly to the spraying pipeline 43, a spray head is arranged at the end of the first spraying pipe 41, the spray head is also the aforementioned spraying end, and the spray head is arranged towards the photovoltaic module 3. Optionally, at least one first spraying pipe 41 is arranged in the region of each photovoltaic panel 32.

[0081] In use, when the sensing assembly 13 detects that there are bird droppings or other impurities on a certain photovoltaic panel 32, the control unit 5 controls the first valve associated with the photovoltaic panel 32 to open after learning the code of the photovoltaic panel 32 where the bird droppings or impurities are located, so that the cleaning liquid in the first spraying pipe 41 is sprayed onto the corresponding photovoltaic panel 32, thereby realizing the water spraying function of the photovoltaic panel 32.

[0082] Please refer to Figure 2In some embodiments, the water spraying assembly 4 comprises a drone 44 assembly, a second spraying pipe 42, a water storage tank, and a second valve. The drone 44 assembly comprises a nest 45 and the drone 44, the drone 44 is electrically connected to the control unit 5, and the nest 45 is detachably connected to the drone 44. The second spraying pipe 42 is arranged on the drone 44. The water storage tank is arranged on the drone 44 and is in communication with the second spraying pipe 42. The second valve is arranged on the second spraying pipe 42 and is electrically connected to the control unit 5.

[0083] The present embodiment shows another embodiment of the water spraying assembly 4, which comprises a drone 44 assembly, a second spraying pipe 42, a water storage tank, and a second valve. The second valve is arranged on the second spraying pipe 42, and the second spraying pipe 42 is in communication with the water storage tank. The drone 44 is detachably connected to the nest 45. When a task needs to be performed, the drone 44 can fly away from the nest 45 and aim the spraying end of the second spraying pipe 42 at the photovoltaic panel 32 that needs to be sprayed, open the second valve to release the cleaning liquid, and fly back to the nest 45 for charging and other operations when the task is completed.

[0084] The present embodiment realizes point-to-point accurate water spraying requirements by combining the drone 44 with the second spraying pipe 42, thereby saving the laying process of the water spraying assembly 4 on the fixed support 31.

[0085] Optionally, the first valve and the second valve can be water pumps or regulating pumps.

[0086] In some optional embodiments, the control unit 5 is in wireless communication connection with the first valve and the second valve.

[0087] Please refer to Figure 3 In some embodiments, the sensing group 13 comprises a second base 131, an image processing module 132, a first adapter frame 133, a camera 135, and a first protective cover 134. The second base 131 is arranged on the first base 11. The image processing module 132 is arranged on the second base 131 and is electrically connected to the control unit 5. The first adapter frame 133 is arranged on the second base 131 and is perpendicular to the second base 131. The camera 135 is arranged on the first adapter frame 133 and faces the photovoltaic panel 32. The camera 135 is electrically connected to the image processing module 132. The first protective cover 134 is arranged on the second base 131 and surrounds the image processing module 132.

[0088] In the embodiment, the second base 131 is arranged on the first base 11, and optionally, the second base 131 is detachably connected with the first base 11. This makes the sensing group 13 form a relatively independent module, facilitating the installation of the sensing group 13 on the existing photovoltaic cleaning equipment and expanding the application of the sensing group 13. The second base 131 is provided with an image processing module 132, a first adapter 133, a camera 135, and a first protective cover 134. The image processing module 132 can be a separate microcomputer chip, which is specially used for performing image processing operations, including feature labeling and identification of images, so as to reduce the calculation amount of the control unit 5. The first protective cover 134 is buckled outside the image processing module 132 to cover the image processing module 132, avoiding the influence of the external environment on the image processing module 132.

[0089] The first adapter 133 is arranged perpendicularly to the second base 131, and the first adapter 133 is provided with the camera 135. The camera 135 can be an industrial CCD camera 135, and optionally, a light source can be installed around the camera 135 to meet the brightness requirement in the image acquisition process. In some embodiments, the camera 135 can also be a thermal imager, an infrared camera, etc., which uses the different heat absorption degrees of bird droppings, impurities, and the photovoltaic panel 32 to perform image acquisition and feature identification, which is not limited in the embodiment.

[0090] In some embodiments, the number of the sensing group 13 is two, and the two sensing groups 13 are arranged side by side on the first base 11. In this way, the image acquisition requirement of the large-size photovoltaic panel 32 can be met, and the number of the sensing group 13 can be set according to actual requirements.

[0091] In the embodiment, the sensing group 13 is arranged, which can acquire image information of the photovoltaic panel 32 one by one during the advancement of the cleaning robot 1, realize real-time tracking of the cleaning degree on the photovoltaic panel 32, and improve the precision of bird droplet self-cleaning.

[0092] Please refer to Figure 4 In some embodiments, the cleaning robot 1 further includes a first support shaft 14, a first driving unit 16, and a second adapter 15. The first support shaft 14 is arranged on the first base 11 and can rotate relative to the first base 11. The first driving unit 16 is in transmission connection with the first support shaft 14, and the first driving unit 16 is arranged on the first base 11 and electrically connected with the control unit 5. The second adapter 15 is arranged on the first support shaft 14 and fixedly connected with the first support shaft 14, and the second adapter 15 is provided with the scraper 12.

[0093] In this embodiment, the first driving unit 16 can be a servo motor, and the second driving unit and the third driving unit described below can also be servo motors. The first support shaft 14 is arranged on the first base 11, and the first driving unit 16 is in transmission connection with the first support shaft 14. The transmission connection can be key groove connection, shaft coupling connection, gear connection or belt connection, etc. The second adapter frame 15 is fixedly arranged on the first support shaft 14, the second adapter frame 15 is in the form of a thin plate, and the second adapter frame 15 is provided with the wiper blade 12. Optionally, when the second adapter frame 15 is in the form of a long strip as shown in the figure, the second adapter frame 15 is arranged along the extension direction of the first support shaft 14; when the second adapter frame 15 is in the form of a block structure, the number of the second adapter frame 15 can be multiple, and the second adapter frame 15 is arranged in the axial direction of the first support shaft 14. Figure 4

[0094] Optionally, the wiper blade 12 can be made of ceramic material, polyurethane material and metal material, and can be set according to actual needs. In this embodiment, the first support shaft 14, the second adapter frame 15 and the first driving unit 16 are arranged to strengthen the structural strength of the wiper blade 12, and at the same time, the wiper blade 12 can be rotated to a certain angle under the driving of the first driving unit 16 to meet the angle requirement of wiping off bird droppings.

[0095] Please refer to Figure 1 In some embodiments, the first base 11 includes a first connecting frame 111, a second connecting frame 112 and a first support plate 113, the first connecting frame 111 and the second connecting frame 112 are arranged opposite to each other, and the first support plate 113 is arranged between the first connecting frame 111 and the second connecting frame 112. The cleaning robot 1 further includes a first moving group 17, a second moving group 18, a cleaning roller brush 19 and a second driving unit, the first moving group 17 is arranged on the first connecting frame 111; the second moving group 18 is arranged on the second connecting frame 112; the cleaning roller brush 19 is arranged below the first support plate 113; and the second driving unit is arranged on the first connecting frame 111 or the second connecting frame 112, and the second driving unit is in transmission connection with the cleaning roller brush 19.

[0096] In this embodiment, the first base 11 includes a first connecting frame 111, a second connecting frame 112 and a first support plate 113, the first connecting frame 111 and the second connecting frame 112 are connected by the first support plate 113 to form a whole, the first moving group 17 is arranged on the first connecting frame 111, the second moving group 18 is arranged on the second connecting frame 112, and the first support plate 113 can be used to arrange electrical components such as the control unit 5 and the sensing group 13. The cleaning roller brush 19 is arranged below the first support plate 113, and the cleaning roller brush is arranged between the first connecting frame 111 and the second connecting frame 112. The cleaning roller brush is provided with a plurality of bristles, and can clean the outer surface of the photovoltaic module 3.

[0097] ​Optionally, the cleaning robot 1 can select a photovoltaic cleaning robot shown in patent No. 202022692474.0, and the specific structure can be understood with reference to the patent text. In some optional embodiments, other dry-type photovoltaic cleaning robot structures can also be selected, and the addition of the sensing group 13 and the scraper 12 to the existing photovoltaic cleaning robot can add the bird droppings self-cleaning function of the entire cleaning robot.

[0098] Specifically, in some embodiments, the first moving group 17 includes a first roller, a third driving unit, and a first hanger wheel. The first roller is arranged on the first connecting frame 111. The third driving unit is in transmission connection with the first roller. The first hanger wheel is arranged on the first connecting frame 111, and the rotation axis of the first hanger wheel is perpendicular to the rotation axis of the first roller. The first hanger wheel is in transmission connection with the third driving unit. The second moving group 18 includes a second roller arranged on the second connecting frame 112. The second roller is arranged opposite to the first roller, and the second roller is in transmission connection with the third driving unit.

[0099] The first roller and the second roller are arranged opposite to each other, and the first roller and the second roller are in contact with the upper surface of the photovoltaic panel 32. The first roller and the second roller are in transmission connection with the third driving unit, so that the third driving unit can drive the first roller and the second roller to move on the photovoltaic module 3. The first hanger wheel is arranged on one side of the first roller, and the first hanger wheel is used for hanging on the side of the photovoltaic module 3, which is suitable for the photovoltaic module 3 arranged in an inclined manner. The first hanger wheel is in transmission connection with the third driving unit, and a bevel gear or other transmission component can be arranged to realize the transmission in the vertical direction.

[0100] The structure shown in the embodiment forms a cleaning robot 1 with a dust cleaning function. When removing bird droppings, the dust on the outer surface of the photovoltaic module 3 can also be cleaned, the photovoltaic module 3 is kept clean, the cleaning efficiency of the photovoltaic module 3 is improved, and the photovoltaic module 3 is not additionally equipped with a dedicated dust cleaning robot, thereby reducing the cleaning and maintenance cost of the photovoltaic module 3.

[0101] Please refer to Figure 5 In some embodiments, the stopping and returning assembly 2 further includes a first fixed rod 23, a first sensor 24, a first stopping block 25, and a charging interface 26. The number of the first fixed rods 23 is two, and the two first fixed rods 23 are arranged opposite to each other on the stopping frame 21. The first sensor 24 is arranged on the stopping frame 21, and the first sensor 24 is used for detecting the position of the cleaning robot 1. The first stopping block 25 is arranged on the stopping frame 21, and the first stopping block 25 can be lapped on the outer surface of the cleaning robot 1 to stop the cleaning robot 1. The charging interface 26 is arranged on the stopping frame 21, and the charging interface 26 is used for charging the cleaning robot 1.

[0102] In the embodiment, the first fixed rod 23 is arranged in an L shape on both sides of the parking rack 21. Specifically, the first sensor 24 can be a distance sensor. When the cleaning robot 1 is placed on the parking rack 21, the first sensor 24 detects the current position of the cleaning robot 1, thereby tracking the cleaning robot 1.

[0103] In the embodiment, the first parking block 25 is further arranged. Optionally, a polyurethane buffer layer can be arranged on the first parking block 25 to reduce scratching of the outer surface of the cleaning robot 1.

[0104] The charging interface 26 is arranged on the parking rack 21. Optionally, the shape of the charging interface 26 varies according to the charging mode. For example, when the charging is wired charging, the charging interface 26 can be a specific fast socket. When the charging is wireless charging, the charging interface 26 can be a flat structure formed by a charging coil.

[0105] In the embodiment, the parking rack 21 is provided with the first fixed rod 23, the first sensor 24, the first parking block 25, and the charging interface 26. This arrangement facilitates monitoring the state of the cleaning robot 1 on the parking rack 21 and charging management, thereby making the use and standby process of the cleaning robot 1 more standardized.

[0106] Please refer to Figure 5 In some embodiments, the parking and returning assembly 2 further includes a second fixed rod 27, a second sensor, and a second parking block 28. The second fixed rod 27 has two second fixed rods 27 arranged opposite each other on the returning rack 22. The second sensor is arranged on the returning rack 22 and is used to detect the position of the cleaning robot 1. The second parking block 28 is arranged on the returning rack 22 and can be lapped on the outer surface of the cleaning robot 1 to stop the cleaning robot 1.

[0107] In the embodiment, the second fixed rod 27 is similar to the first fixed rod 23 and is arranged on the returning rack 22. The second parking block 28 is similar to the first parking block 25 and is arranged on the returning rack 22. The second sensor can be a distance sensor. By arranging the second sensor, the state of the cleaning robot 1 on the returning rack 22 can be tracked, thereby making the use process of the cleaning robot 1 more standardized.

[0108] In the technical scheme, the bird dropping pollution of the photovoltaic panel 32 is detected by the sensing group 13, the bird dropping is removed by the wiper 12 at the place where the bird dropping exists, the continuous contact of the wiper 12 to the photovoltaic panel 32 is reduced, and the normal power attenuation speed of the photovoltaic panel 32 affected by the automatic cleaning is reduced; the bird dropping is sprayed by clean water, and then the surface of the photovoltaic panel 32 is cleaned by the wiper when the adhesion of the bird dropping is reduced, so that the problem that the bird dropping on the photovoltaic panel 32 is difficult to remove and the bird dropping is removed by force and the photovoltaic panel 32 is damaged is solved. Further, when the bird dropping is not removed, the cleaning robot 1 can clean the dust on the photovoltaic panel 32 in a dry mode, and in the area where the snowfall is not large, the cleaning robot 1 of the system can also be used as a snow remover to remove the snow with a thickness of less than 4 cm. The technical scheme can clean the bird dropping adhered to the surface of the photovoltaic panel 32 in time and automatically, greatly reduces the influence of the bird dropping on the service life of the photovoltaic panel 32, and prolongs the service life of the photovoltaic panel 32.

[0109] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of the present application, the patent protection scope of the present application should not be limited. Any equivalent structure or equivalent process replacement or modification based on the essential concept of the present application, the content recorded in the specification and drawings, and the direct or indirect implementation of the technical solutions of the above embodiments in other related technical fields are all included in the patent protection scope of the present application.

Claims

1. A bird dropping photovoltaic cleaning system, characterized by, The application relates to a system suitable for a photovoltaic module, the photovoltaic module comprising a fixed support and a photovoltaic panel, the system comprising: a water spraying assembly arranged on the fixed support, the water spraying assembly having a spraying end for spraying a cleaning liquid onto the photovoltaic panel; a stop-return assembly comprising a stop frame and a return frame, the stop frame and the return frame being arranged at opposite ends of the photovoltaic module; a cleaning robot comprising a first base, a scraper and a sensing assembly, the first base being in sliding connection with the stop frame, the return frame and the fixed support, the scraper being arranged on the first base, and the sensing assembly being arranged on the first base and being used to collect image information of the photovoltaic panel; a control unit being in electrical connection with the cleaning robot, the water spraying assembly and the stop-return assembly.

2. The bird dropping photovoltaic cleaning system of claim 1, wherein, The water spraying assembly comprises: a spraying pipeline arranged along the fixed support; a plurality of first spraying pipes, each of the first spraying pipes being connected with the spraying pipeline, the first spraying pipes being arranged at intervals along the extension direction of the spraying pipeline, at least one first spraying pipe being arranged on one photovoltaic panel, and the first spraying pipe being provided with the spraying end; a plurality of first valves, each of the first valves being arranged on one first spraying pipe, and the first valves being in electrical connection with the control unit.

3. The bird dropping photovoltaic cleaning system of claim 1, wherein, The water spraying assembly comprises: an unmanned aerial vehicle assembly comprising a nest and an unmanned aerial vehicle, the unmanned aerial vehicle being in electrical connection with the control unit, and the nest being detachably connected with the unmanned aerial vehicle; a second spraying pipeline arranged on the unmanned aerial vehicle, the second spraying pipeline being provided with the spraying end; a water storage tank arranged on the unmanned aerial vehicle, the water storage tank being in communication with the second spraying pipeline; a second valve arranged on the second spraying pipeline, the second valve being in electrical connection with the control unit.

4. The bird dropping photovoltaic cleaning system of claim 1, wherein, The sensing assembly comprises: a second base arranged on the first base; an image processing module arranged on the second base, the image processing module being in electrical connection with the control unit; a first adapter frame arranged on the second base, the first adapter frame being perpendicular to the second base; a camera arranged on the first adapter frame, the camera being arranged towards the photovoltaic panel, and the camera being in electrical connection with the image processing module; a first protective cover arranged on the second base and surrounding the image processing module.

5. The bird dropping photovoltaic cleaning system according to any one of claims 1-4, wherein, The number of the sensing assemblies is two, and the two sensing assemblies are arranged side by side on the first base.

6. The bird dropping photovoltaic cleaning system of claim 1, wherein, The cleaning robot further comprises: a first support shaft arranged on the first base, the first support shaft being rotatable relative to the first base; a first driving unit in transmission connection with the first support shaft, the first driving unit being arranged on the first base, and the first driving unit being in electrical connection with the control unit; a second adapter frame arranged on the first support shaft, the second adapter frame being fixedly connected with the first support shaft, and the second adapter frame being provided with the scraper.

7. The bird dropping photovoltaic cleaning system of claim 1, wherein, The first base comprises a first connecting frame, a second connecting frame and a first support plate, the first connecting frame and the second connecting frame are oppositely arranged, and the first support plate is arranged between the first connecting frame and the second connecting frame, and the cleaning robot further comprises: A first moving group is arranged on the first connecting frame; A second moving group is arranged on the second connecting frame; A cleaning roller brush is arranged below the first support plate; A second driving unit is arranged on the first connecting frame or the second connecting frame, and the second driving unit is in transmission connection with the cleaning roller brush.

8. The bird dropping photovoltaic cleaning system of claim 7, wherein, The first moving group comprises: A first roller is arranged on the first connecting frame; A third driving unit is in transmission connection with the first roller; A first hanging wheel is arranged on the first connecting frame, the rotation axis of the first hanging wheel is perpendicular to the rotation axis of the first roller, and the first hanging wheel is in transmission connection with the third driving unit. The second moving group comprises: A second roller is arranged on the second connecting frame, the second roller is oppositely arranged with the first roller, and the second roller is in transmission connection with the third driving unit.

9. The bird dropping photovoltaic cleaning system of claim 1, wherein, The stop-return assembly further comprises: Two first fixing rods are oppositely arranged on the stop frame; A first sensor is arranged on the stop frame, and the first sensor is used for detecting the position of the cleaning robot; A first stop block is arranged on the stop frame, and the first stop block can be lapped on the outer surface of the cleaning robot to stop the cleaning robot; A charging interface is arranged on the stop frame, and the charging interface is used for charging the cleaning robot.

10. The bird dropping photovoltaic cleaning system of claim 1, wherein, The stop-return assembly further comprises: Two second fixing rods are oppositely arranged on the return frame; A second sensor is arranged on the return frame, and the second sensor is used for detecting the position of the cleaning robot; A second stop block is arranged on the return frame, and the second stop block can be lapped on the outer surface of the cleaning robot to stop the cleaning robot.

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