Intelligent reciprocating solar panel cleaning device and control method thereof

Abstract

The present invention relates to the field of power engineering, and discloses an intelligent reciprocating solar panel cleaning device, including a cleaning device frame and a solar panel arranged on the cleaning device frame, and also including a solar panel cleaning module, a cleaning element dust removal module, a solar panel cleanliness analysis module, an energy storage module and an equipment control module; the control method thereof is also disclosed, starting a controller to make the solar panel cleaning module work; judging the running position of the cleaning element through the controller, when the cleaning element runs to the vacuum dust removal flow channel opening, the controller controls the axial flow fan to work and remove the debris on its surface; judging whether the solar panel cleaning module has cleaned the solar panel qualified, if not meeting the requirements, then repeatedly cleaning the unqualified parts again. The present invention can realize automatic reciprocating cleaning of the solar panel surface, and the operation is safe and simple; 2 It can flexibly realize fixed-point reciprocating cleaning, and to a certain extent overcomes the shortcomings of poor solar panel cleaning effect.

Description

Technical Field

[0001] The invention relates to the field of power engineering, and in particular to an intelligent reciprocating solar panel cleaning device and a control method thereof. Background Art

[0002] With the gradual depletion of traditional fossil energy and the gradual upgrading of environmental protection requirements and energy conservation and emission reduction requirements, the use of solar energy is becoming more and more widespread. In recent years, the total installed capacity of solar power stations in my country has increased rapidly, and solar lighting, solar heating and other equipment have gradually penetrated into daily life.

[0003] The method of using solar panels for energy conversion accounts for a large proportion of solar energy utilization. Since solar panels are directly exposed to the atmosphere, bird droppings, dust accumulation and other phenomena are inevitable after long-term use, which not only affects the efficiency of solar energy conversion, but also may corrode the surface of solar panels and affect the service life of solar panels. However, the cleaning of solar panels is often complicated, manual cleaning is time-consuming and labor-intensive, and the cleaning effect of machines is poor, and fixed-point cleaning cannot be achieved. Therefore, intelligent automatic cleaning devices for solar panels are urgently needed to be developed. Summary of the invention

[0004] The object of the present invention is to provide an intelligent reciprocating solar panel cleaning device and a control method thereof to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An intelligent reciprocating solar panel cleaning device includes a cleaning device frame and a solar panel arranged on the cleaning device frame, and also includes a solar panel cleaning module, a cleaning element dust removal module, a solar panel cleanliness analysis module, an energy storage module and an equipment control module, wherein:

[0007] The solar panel cleaning module includes a guide rail, a guide wheel, a cleaning bracket, a cleaning bracket fixing plate, a fastening bolt, a cleaning element, a mounting plate fixing bolt and a mounting plate. The cleaning element is fixed to the mounting plate by pasting, the mounting plate is fixed to the cleaning bracket by the mounting plate fixing bolt, and the cleaning bracket slides on the guide rail through the guide wheel;

[0008] The cleaning element dust removal module includes a vacuum dust removal flow channel and two axial flow fans;

[0009] The solar panel cleanliness analysis module includes a camera, which is fixed on a mounting plate, and the camera is electrically connected to a controller via a traction rope and a communication line inside a communication line protection bracket;

[0010] The energy storage module includes a single-phase air switch, an energy manager, a DC contactor, a DC relay and a battery. The battery, the energy manager and the single-phase air switch are connected in sequence and are electrically connected to the power generation line of the solar panel through the single-phase air switch.

[0011] The device control module includes a controller, an auxiliary power supply and a communication line.

[0012] As a further solution of the present invention: a traction rope positioning wheel is built into the middle of the mounting plate, and is connected to a front traction motor and a rear traction motor arranged on the cleaning device frame through a steel rope and the traction rope positioning wheel.

[0013] As a further solution of the present invention: the battery is electrically connected to the controller, and the power supply line of the battery supplies power to the axial fan, the camera, the front traction motor and the rear traction motor respectively through a DC contactor.

[0014] As a further solution of the present invention: the front traction motor and the rear traction motor are both constant speed motors.

[0015] A control method of an intelligent reciprocating solar panel cleaning device comprises the following steps:

[0016] S1: Start the controller to make the solar panel cleaning module work. When cleaning forward, the front traction motor is controlled to work, dragging the cleaning element forward, and the rear traction motor is not working; when cleaning backward, the rear traction motor is controlled by the controller to work, dragging the cleaning element backward, and the front traction motor is not working;

[0017] S2: The controller determines the running position of the cleaning element. When the cleaning element runs to the vacuum dust removal flow channel, the controller controls the axial flow fan to work, generates vacuum suction on the surface of the cleaning element, and removes the debris on the surface;

[0018] S3: Determine whether the solar panel cleaning module has cleaned the solar panel properly. If not, the controller controls the front traction motor and the rear traction motor to drag the mounting plate and the cleaning element to repeatedly clean the unqualified parts.

[0019] As a further solution of the present invention: in step S3, the process of judging whether the solar panel is qualified is as follows: the controller starts the camera to capture the surface pattern of the solar panel in a small range, and uses the signal line arranged in the traction rope and the communication line protection bracket to send the image to the controller, and compares the image texture features before and after cleaning in the controller to judge the cleaning status of the solar panel surface.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. It can automatically clean the surface of solar panels back and forth, which is safe and easy to operate;

[0022] 2. It can flexibly realize fixed-point reciprocating cleaning, which to a certain extent overcomes the shortcomings of poor cleaning effect of solar panels;

[0023] 3. Simple structure and scalability;

[0024] 4. Convenient energy storage, low cost and good control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The figure is a schematic diagram of the structure of an intelligent reciprocating solar panel cleaning device.

[0026] Figure 2 The figure is a schematic diagram of the circuit structure of an intelligent reciprocating solar panel cleaning device.

[0027] Figure 3 The figure is a schematic diagram of the control principle structure of an intelligent reciprocating solar panel cleaning device.

[0028] In the figure: 1-solar panel, 2-cleaning device frame, 3-guide rail, 4-guide wheel, 5-cleaning bracket, 6-cleaning bracket fixing plate, 7-fastening bolt, 8-vacuum dust removal flow channel, 9-axial flow fan, 10-single-phase air switch, 11-energy manager, 12-DC contactor, 13-DC relay, 14-battery, 15-controller, 16-traction rope and communication line protection bracket, 17-cleaning element, 18-mounting plate fixing bolt, 19-mounting plate, 20-traction rope positioning wheel, 21-camera, 22-front traction motor, 23-rear traction motor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1 In an embodiment of the present invention, an intelligent reciprocating solar panel cleaning device, 1. An intelligent reciprocating solar panel cleaning device, comprising a cleaning device frame 2 and a solar panel 1 arranged on the cleaning device frame 2, and also comprising a solar panel cleaning module, a cleaning element dust removal module, a solar panel cleanliness analysis module, an energy storage module and an equipment control module.

[0031] Among them, the solar panel cleaning module includes a guide rail 3, a guide wheel 4, a cleaning bracket 5, a cleaning bracket fixing plate 6, a fastening bolt 7, a cleaning element 17, a mounting plate fixing bolt 18 and a mounting plate 19. The cleaning element 17 is fixed to the mounting plate 19 by gluing, and the mounting plate 19 is fixed to the cleaning bracket 5 by the mounting plate fixing bolt 18. The cleaning bracket 5 slides on the guide rail 3 through the guide wheel 4, and the tightness of the contact surface between the cleaning bracket fixing plate 6 and the lower contact surface of the guide rail 3 can be adjusted by the fastening bolt 7, thereby adjusting the tightness of the contact between the cleaning element 6 and the surface of the solar panel 1. Here, the cleaning element 17 is made of flexible material to protect the solar surface during the cleaning process and try to avoid scratches, extrusion and other damage.

[0032] The cleaning element dust removal module includes a vacuum dust removal flow channel 8 and two axial flow fans 9, and the axial flow fans 9 are powered by a battery 14.

[0033] The solar panel cleanliness analysis module includes a camera 21, which is fixed on a mounting plate 19. The camera 21 is electrically connected to a controller 15 via a traction rope and a communication line inside a communication line protection bracket 16. The camera 21 sends the image content to the controller 15 via the communication line, and performs texture analysis and comparison in the controller 15.

[0034] The energy storage module includes a single-phase air switch 10, an energy manager 11, a DC contactor 12, a DC relay 13 and a battery 14. The battery 14, the energy manager 11 and the single-phase air switch 10 are connected in sequence and are electrically connected to the power generation line of the solar panel 1 through the single-phase air switch 10; the equipment control module includes a controller 15, an auxiliary power supply and a communication line.

[0035] A traction rope positioning wheel 20 is built into the middle of the mounting plate 19, which is connected to the front traction motor 22 and the rear traction motor 23 arranged on the cleaning device frame 2 through the steel rope and the traction rope positioning wheel 20. The steel rope is arranged in the traction rope and communication line protection bracket 16. The guide rails 3 arranged on the left and right sides of the cleaning device frame 2 cooperate with the guide wheel 4 to ensure that the cleaning element 17 will not tilt or get blocked during reciprocating motion. When the traction motor 22 is working, the controller 15 calculates its working time and determines the moving position of the cleaning element 17 using the constant speed principle. The front traction motor 22 and the rear traction motor 23 are both constant speed motors.

[0036] The battery 14 is electrically connected to the controller 15 , and the power supply line of the battery 14 supplies power to the axial fan 9 , the camera 21 , the front traction motor 22 , and the rear traction motor 23 through the DC contactor 12 .

[0037] See also Figure 2, the controller 15 analyzes the voltage signal of the battery 14. When the voltage is lower than 95% of the rated voltage of the battery, the controller 15 controls the energy manager 11 to be in a closed state, the DC contactor 12 and the DC relay 13 to be in a disconnected state, and the solar energy is used to charge the battery 14. When the battery voltage reaches the rated voltage, the controller 15 controls the energy manager 11 to be in a disconnected state, the DC contactor 12 and the DC relay 13 to be in a closed state, and the axial flow fan 9, the camera 21 and the traction motor 22 are powered.

[0038] Here, the battery voltage level is equal to the solar panel voltage level. If a high-power solar panel is used, a DC step-down device can be added after the single-phase air switch 10 and between the energy manager 11. If the battery voltage level is 24V, the operating voltage of the axial fan, camera, and traction motor are all 24V.

[0039] See also Figure 3 , a control method of an intelligent reciprocating solar panel cleaning device comprises the following steps:

[0040] S1: Start the controller 15 to make the solar panel cleaning module work. When cleaning forward, the front traction motor 22 is controlled to work, dragging the cleaning element 17 to move forward, and the rear traction motor 23 is not working; when cleaning backward, the rear traction motor 23 is controlled by the controller 15 to work, dragging the cleaning element 17 to move backward, and the front traction motor 22 is not working;

[0041] S2: The controller 15 determines the running position of the cleaning element 17. When the cleaning element 17 runs to the flow channel opening of the vacuum dust removal flow channel 8, the controller 15 controls the axial flow fan 9 to work, and generates vacuum suction on the surface of the cleaning element 17 to remove the debris on the surface;

[0042] S3: Determine whether the solar panel cleaning module has cleaned the solar panel 1 to a qualified level. If not, the controller 15 controls the front traction motor 22 and the rear traction motor 23 to drag the mounting plate 19 and the cleaning element 17 to repeatedly clean the unqualified parts.

[0043] In step S3, the process of judging whether the solar panel 1 is cleaned properly is as follows: the controller 15 starts the camera 21 to take a picture of the surface of the solar panel 1, and uses the signal line arranged in the traction rope and communication line protection bracket 16 to send the image to the controller 15, and compares the image texture features before and after cleaning in the controller 15 to judge the cleaning status of the solar panel surface.

[0044] The working principle of the present invention: After an intelligent reciprocating solar panel cleaning device is started, the controller 15 sends a control signal to control the front traction motor 22 and the rear traction motor 22 to match and work. When the cleaning element 17 moves forward, the front traction motor 22 is controlled to work and the rear traction motor 22 stops running; when moving backward, the rear traction motor 22 is controlled to work and the front traction motor 22 stops running; at the same time, the controller records the working time of the front traction motor 22 and the rear traction motor 23 respectively. Under the condition that the traction motor is running at a constant speed, the position of the cleaning element 17 can be calculated. When the cleaning element 17 is in the vacuum dust removal flow channel 8, the controller 15 starts the axial flow fan 9 to remove dust and the like on the surface of the cleaning element, and the vacuum dust removal time can be set to 30s. Thereafter, the controller 15 starts the front traction motor 22 to drag the cleaning element to continue cleaning. The controller 15 records the number of times the axial flow fan 9 is started. When the axial flow fan 9 is started 8 times, that is, the cleaning element repeatedly cleans the solar panel surface 8 times, the controller 15 starts the camera 21 to capture the image of the solar panel surface and performs texture analysis on the clean solar panel surface. For areas that do not meet the requirements, the controller 15 controls the front traction motor 22 and the rear traction motor 23 to move the cleaning element 17 to the area and repeatedly clean the area in a small range again.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A control method for an intelligent reciprocating solar panel cleaning device, characterized in that: The steps include: S1: starting the controller (15) to operate the solar panel cleaning module. When cleaning forward, the front traction motor (22) is controlled to operate, dragging the cleaning element (17) forward, and the rear traction motor (23) is not operated. When cleaning backward, the rear traction motor (23) is controlled by the controller (15) to operate, dragging the cleaning element (17) backward, and the front traction motor (22) is not operated. S2: The controller (15) determines the running position of the cleaning element (17). When the cleaning element (17) runs to the flow channel opening of the vacuum dust removal flow channel (8), the controller (15) controls the axial flow fan (9) to operate, thereby generating vacuum suction on the surface of the cleaning element (17) to remove debris on the surface; S3: judging whether the solar panel cleaning module has cleaned the solar panel (1) to a qualified standard; if it does not meet the requirements, the controller (15) controls the front traction motor (22) and the rear traction motor (23) to drag the mounting plate (19) and the cleaning element (17) to repeatedly clean the parts that do not meet the requirements; The cleaning device frame (2) using the above control method and the solar panel (1) arranged on the cleaning device frame (2) also include a solar panel cleaning module, a cleaning element dust removal module, a solar panel cleanliness analysis module, an energy storage module and an equipment control module, wherein: The solar panel cleaning module comprises a guide rail (3), a guide wheel (4), a cleaning bracket (5), a cleaning bracket fixing plate (6), a fastening bolt (7), a cleaning element (17), a mounting plate fixing bolt (18) and a mounting plate (19); the cleaning element (17) is fixed to the mounting plate (19) by gluing; the mounting plate (19) is fixed to the cleaning bracket (5) by the mounting plate fixing bolt (18); and the cleaning bracket (5) slides on the guide rail (3) via the guide wheel (4); The cleaning element dust removal module comprises a vacuum dust removal flow channel (8) and two axial flow fans (9); The solar panel cleanliness analysis module comprises a camera (21), the camera (21) is fixed on the mounting plate (19), and the camera (21) is electrically connected to the controller (15) via a traction rope and a communication line inside the communication line protection bracket (16); The energy storage module comprises a single-phase air switch (10), an energy manager (11), a DC contactor (12), a DC relay (13) and a storage battery (14); the storage battery (14), the energy manager (11) and the single-phase air switch (10) are connected in sequence and are electrically connected to a power generation output line of a solar panel (1) via the single-phase air switch (10); The device control module comprises a controller (15), an auxiliary power supply and a communication line.

2. The control method of the intelligent reciprocating solar panel cleaning device according to claim 1 is characterized in that: A traction rope positioning wheel (20) is built into the middle of the mounting plate (19) and is connected to a front traction motor (22) and a rear traction motor (23) arranged on the cleaning device frame (2) via a steel rope and the traction rope positioning wheel (20).

3. The control method of the intelligent reciprocating solar panel cleaning device according to claim 2 is characterized in that: The storage battery (14) is electrically connected to a controller (15), and a power supply line of the storage battery (14) supplies power to the axial flow fan (9), the camera (21), the front traction motor (22), and the rear traction motor (23) respectively through a DC contactor (12).

4. The control method of the intelligent reciprocating solar panel cleaning device according to claim 2 or 3, characterized in that: The front traction motor (22) and the rear traction motor (23) are both constant speed motors.

5. The control method of the intelligent reciprocating solar panel cleaning device according to claim 1, characterized in that: In step S2, the process of judging whether the solar panel (1) is cleaned properly is as follows: the controller (15) starts the camera (21) to take a picture of the surface of the solar panel (1), and uses the signal line arranged in the traction rope and communication line protection bracket (16) to send the image to the controller (15), and compares the image texture features before and after cleaning in the controller (15) to judge the cleanliness status of the solar panel surface.

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