Station photovoltaic panel automatic cleaning system based on regional environment data

Abstract

The utility model discloses an automatic station photovoltaic panel cleaning system based on regional environment data, which belongs to the technical field of photovoltaic power generation and can detect the concentration of floating dust or particulate matters in air by arranging a floating dust sensor. By arranging the camera, the cleaning condition of the surface of the photovoltaic panel in the station can be obtained in real time; data collected by the floating dust sensor and the camera are sent to the remote monitoring end, so that a user can know the actual condition in the station in time; the remote control end is arranged to be in communication connection with the cleaning device, so that a user can remotely control the cleaning device to execute the cleaning task through the remote control end. Therefore, according to the scheme, a user can conveniently control and clean the photovoltaic panel under the condition that the user is not on the site of the station, so that the labor cost is greatly saved, sand and dust of the station are not aggravated, the method is more suitable for the station of a photovoltaic desertification control project, and the requirement of intelligent operation and maintenance of the photovoltaic station can also be met.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to an automatic cleaning system for photovoltaic panels at a site based on regional environmental data. Background Art

[0002] Photovoltaic desertification control is an ecological approach that combines photovoltaic power generation with desertification control. Because the project is located near the desert, the photovoltaic panels used in this project are prone to dust and dirt accumulation, which affects the panels' power generation efficiency and requires frequent cleaning.

[0003] Existing methods for cleaning photovoltaic panels include manual cleaning and mechanical vehicle cleaning. However, traditional manual cleaning methods are inefficient and labor-intensive, making them unsuitable for photovoltaic sites in photovoltaic sand control projects, which are large and prone to dust and dirt accumulation. Mechanical cleaning vehicles typically need to operate on flat terrain, but photovoltaic sites in photovoltaic sand control projects are often relatively soft, making it difficult to pave surfaces for mechanical cleaning vehicles. Furthermore, mechanical cleaning vehicles themselves raise a large amount of dust when operating on sandy ground, making mechanical vehicle cleaning unsuitable for photovoltaic sites in photovoltaic sand control projects. Furthermore, existing photovoltaic cleaning methods fail to meet the requirements for intelligent operation and maintenance of photovoltaic sites.

[0004] At present, there is an urgent need for an automatic photovoltaic panel cleaning system that is suitable for photovoltaic stations in photovoltaic sand control projects and can meet the requirements of intelligent operation and maintenance. Utility Model Content

[0005] The utility model provides an automatic photovoltaic panel cleaning system for a station based on regional environmental data to solve the problems of low manual efficiency and high intensity of existing photovoltaic panel cleaning methods, and the inability of mechanical vehicles to clean in desert areas, which aggravates the sand and dust conditions in the station, and also fails to meet the requirements of intelligent operation and maintenance of photovoltaic stations.

[0006] The utility model provides an automatic cleaning system for photovoltaic panels at a site based on regional environmental data, comprising: a plurality of on-site environmental monitoring terminals, each of which comprises a first dust sensor, a camera, and a first communication module uniformly distributed in the site area; the first dust sensor is used to detect the concentration of dust or particulate matter in the air; the camera is used to obtain the cleaning status of the surface of the photovoltaic panel; the first communication module is used to send the collected data of the first dust sensor and the camera to a remote monitoring terminal; the remote monitoring terminal comprises a second communication module, a human-computer interaction device, and a third communication module; the second communication module is used to receive the collected data sent by the on-site monitoring terminal; the human-computer interaction device is used to present the collected data to a user and receive a control instruction input by the user; the third communication module is used to send the input control instruction to a cleaning execution mechanism; a plurality of cleaning devices, each of which comprises a fourth communication module, a first controller, and a cleaning execution mechanism; the fourth communication module is used to receive the control instruction sent by the remote control terminal; the cleaning execution mechanism is arranged on the side of each photovoltaic panel and is used to clean the surface of the photovoltaic panel; and the first controller is used to control the cleaning execution mechanism to execute the control instruction.

[0007] In some embodiments, the camera and the first floating dust sensor are integrated into one.

[0008] In some embodiments, the on-site environment monitoring end also includes a drone and its base station; the base station of the drone is provided with a power supply device, a protective cabin and a second controller, the power supply device is used to charge the drone, the protective cabin is used to protect the drone from damage by wind and sand when the drone is grounded, and the second controller is used to control the flight route of the drone; the drone is equipped with a high-definition camera and a fifth communication module, the high-definition camera is used to capture images of the photovoltaic panel surface during the flight of the drone, and the fifth communication module is used to transmit the images captured by the high-definition camera to the remote monitoring end.

[0009] In some embodiments, the drone carries a second dust sensor and sends collected data of the second dust sensor to a remote monitoring terminal through the fifth communication module.

[0010] In some embodiments, the cleaning actuator includes: a wiper fixed on one side of the photovoltaic panel; the wiper has a folded state and a washing state; a spray port arranged on one side of the photovoltaic panel; the spray port is used to spray cleaning liquid toward the surface of the photovoltaic panel.

[0011] In some embodiments, the spray port includes: a first water outlet pipe for discharging normal temperature cleaning fluid; and a second water outlet pipe for discharging antifreeze cleaning fluid.

[0012] In some embodiments, the on-site environment monitoring terminal further includes a temperature sensor for detecting the temperature of the site.

[0013] In some embodiments, the cleaning actuator includes: a switching valve for controlling the cleaning liquid to flow out from the first water outlet pipe or the second water outlet pipe.

[0014] In some embodiments, at least one of the first water outlet pipe and the second water outlet pipe is connected to a water collecting tank of the station through a pipeline.

[0015] In some embodiments, the remote monitoring terminal is at least one of a mobile phone and a desktop computer.

[0016] This manual provides an automatic cleaning system for photovoltaic panels at a site based on regional environmental data. By setting up a dust sensor, the concentration of dust or particulate matter in the air can be detected. By setting up a camera, the cleaning status of the photovoltaic panel surface at the site can be obtained in real time. By sending the collected data of the dust sensor and camera to the remote monitoring terminal, the user can timely understand the actual situation at the site. By setting up a communication connection between the remote control terminal and the cleaning device, the user can remotely control the cleaning device through the remote control terminal to perform the cleaning task. It can be seen that this solution allows users to conveniently control the cleaning of photovoltaic panels without being at the site of the site, thereby greatly saving labor costs and not aggravating the dust at the site. It is therefore more suitable for sites of photovoltaic sand control projects. The dust situation at the site can be monitored more accurately by using dust sensors. This solution can also meet the requirements of intelligent operation and maintenance of photovoltaic sites.

[0017] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. Furthermore, the shapes and proportional dimensions of the components in the drawings are for illustrative purposes only and are intended to facilitate understanding of the present invention. They are not intended to limit the shapes and proportional dimensions of the components of the present invention. Those skilled in the art, guided by the present invention, may select various possible shapes and proportional dimensions to implement the present invention, depending on the specific circumstances.

[0019] Figure 1 A schematic diagram of a photovoltaic panel automatic cleaning system based on regional environmental data provided in this manual;

[0020] Figure 2 A distribution diagram of the locations set up in the station;

[0021] Figure 3 Another schematic diagram of the automatic cleaning system for photovoltaic panels at a site based on regional environmental data provided for this specification;

[0022] Figure 4 This is a schematic diagram of a drone and a drone base station;

[0023] Figure 5 It is a schematic diagram of the cleaning actuator;

[0024] Figure 6 This is a schematic diagram of the connection of the spray port;

[0025] Figure 7 This is the control flow chart of the automatic cleaning system for photovoltaic panels at the site. DETAILED DESCRIPTION

[0026] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of explaining the present invention only and should not be construed as limiting the present invention in any way. Based on the teachings of the present invention, skilled artisans can conceive of any possible variations based on the present invention, which should be considered to fall within the scope of the present invention.

[0027] This manual provides a site-based photovoltaic panel automatic cleaning system based on regional environmental data, such as Figure 1 As shown, the automatic cleaning system for photovoltaic panels at the site includes multiple on-site environmental monitoring terminals, remote monitoring terminals and multiple cleaning devices.

[0028] The on-site environment monitoring terminal includes a first floating dust sensor, a camera, and a first communication module evenly distributed in the station area. In some embodiments, a first floating dust sensor, a camera, and a first communication module can be set on each photovoltaic panel. However, in reality, the area of ​​a station area is usually large, and the number of photovoltaic panels installed therein is large. If the above-mentioned setting method is adopted, the cost will be too high. For this reason, in some embodiments, such as Figure 2 As shown, the installation locations can be evenly selected in the station (in Figure 2 In the figure, the black dots represent the installation positions, and the parallelograms represent the photovoltaic panels. A first floating sensor, a camera, and a first communication module are installed at the installation positions. The first floating sensor, the camera, and the first communication module can be integrated into one.

[0029] The first dust sensor is used to detect the concentration of dust or particulate matter in the air. The camera is used to obtain the cleaning status of the photovoltaic panel surface. The first communication module is used to transmit the collected data from the first dust sensor and the camera to a remote monitoring terminal.

[0030] The remote monitoring terminal includes a second communication module, a human-computer interaction device, and a third communication module. The second communication module is used to receive collected data sent by the on-site monitoring terminal. The human-computer interaction device is used to present the collected data to the user and receive control instructions input by the user. The third communication module is used to transmit the input control instructions to the cleaning actuator.

[0031] The cleaning device includes multiple cleaning devices, wherein the cleaning execution device includes a fourth communication module, a first controller, and a cleaning execution mechanism. The fourth communication module is configured to receive control instructions from a remote control terminal. The cleaning execution mechanism is disposed on the side of each photovoltaic panel and is configured to clean the surface of the photovoltaic panel. The first controller is configured to control the cleaning execution mechanism to execute the control instructions.

[0032] This manual provides an automatic cleaning system for photovoltaic panels at a site based on regional environmental data. By setting up a dust sensor, the concentration of dust or particulate matter in the air can be detected. By setting up a camera, the cleaning status of the photovoltaic panel surface at the site can be obtained in real time. By sending the collected data of the dust sensor and camera to the remote monitoring terminal, the user can timely understand the actual situation at the site. By setting up a communication connection between the remote control terminal and the cleaning device, the user can remotely control the cleaning device through the remote control terminal to perform the cleaning task. It can be seen that this solution allows users to conveniently control the cleaning of photovoltaic panels without being at the site of the site, thereby greatly saving labor costs and not aggravating the dust at the site. It is therefore more suitable for sites of photovoltaic sand control projects. The dust situation at the site can be monitored more accurately by using dust sensors. This solution can also meet the requirements of intelligent operation and maintenance of photovoltaic sites.

[0033] In some embodiments, the camera and the first floating dust sensor are integrated into one.

[0034] In some embodiments, as Figure 3 and Figure 4 As shown, the on-site environment monitoring terminal also includes a drone and its base station.

[0035] like Figure 4 As shown, the base station of the drone is provided with a power supply device, a protection cabin and a second controller. The power supply device is used to charge the drone, the protection cabin is used to protect the drone from damage by wind and sand when the drone is grounded, and the second controller is used to control the flight route of the drone.

[0036] The drone is equipped with a high-definition camera and a fifth communication module. The high-definition camera is used to capture images of the photovoltaic panel surface during the flight of the drone, and the fifth communication module is used to transmit the images captured by the high-definition camera to a remote monitoring terminal.

[0037] By setting up a drone, the drone can be controlled to fly over the station as needed and simultaneously photograph the conditions of the surfaces of each photovoltaic panel in the station, so as to determine the dust accumulation condition and cleaning degree of each photovoltaic panel based on the image, and thus determine whether to clean it and whether the cleaning process can be ended based on the images collected by the drone.

[0038] In some embodiments, the drone carries a second dust sensor and sends collected data of the second dust sensor to a remote monitoring terminal through the fifth communication module.

[0039] By installing a dust sensor on a drone, it is possible to detect the amount of dust in the environment during flight, thus avoiding the possibility of failure of individual dust sensors installed at the station. In addition, by comparing the data collected by the dust sensor installed on the drone with the fixed dust sensor installed at the station, it is easy to determine which of the fixed dust sensors is faulty. This saves manpower and allows for the timely identification of the faulty sensor, allowing for timely replacement to ensure the normal operation of the system.

[0040] In some embodiments, as Figure 5 As shown, the cleaning actuator includes a wiper A and a spray port B.

[0041] The wiper A is fixed on one side of the photovoltaic panel and has a folding state and a washing state.

[0042] The spray port B is provided on one side of the photovoltaic panel and is used to spray cleaning liquid toward the surface of the photovoltaic panel.

[0043] In some embodiments, as Figure 6 As shown, the spray port B includes a first outlet pipe and a second outlet pipe. The first outlet pipe is used to discharge normal temperature cleaning fluid, and the second outlet pipe is used to discharge antifreeze cleaning fluid.

[0044] Furthermore, at least one of the first and second water outlet pipes is connected to a water collection tank at the station via a pipe. Since desert environments are often dusty and sandy, photovoltaic panels require frequent cleaning, and the amount of cleaning fluid used by numerous photovoltaic panels is also large. By connecting the first and second water outlet pipes to the water collection tank at the station, a single station can be equipped with only a few water collection tanks, eliminating the need for a separate tank for cleaning fluid for each photovoltaic panel. This reduces the cost of installing and maintaining the water tanks, as well as the labor cost of adding cleaning fluid to the tanks.

[0045] In some embodiments, the on-site environment monitoring terminal further includes a temperature sensor for detecting the temperature of the site.

[0046] In some embodiments, as Figure 6 As shown, the cleaning actuator includes a switching valve C for controlling the outflow of the cleaning liquid from the first outlet pipe or the second outlet pipe. By setting the switching valve, it is possible to control whether the spray port sprays normal temperature cleaning liquid or antifreeze cleaning liquid.

[0047] In some embodiments, the switching valve is controlled based on a value collected by a temperature sensor. When the value collected by the temperature sensor is greater than or equal to a preset temperature threshold, the switching valve is controlled to connect the spray port to a first outlet pipe corresponding to a normal temperature cleaning fluid. When the value collected by the temperature sensor is less than the preset temperature threshold, the switching valve is controlled to connect the spray port to a second outlet pipe corresponding to an antifreeze cleaning fluid.

[0048] The remote monitoring terminal is at least one of a mobile phone and a desktop computer.

[0049] Through the remote control terminal, on the one hand, the device address, control logic, automatic and manual control modes of the cleaning device can be set, selected and displayed remotely and in real time; on the other hand, the field environmental data collected by the field environmental monitoring terminal and the operating status data of each cleaning actuator in the cleaning device can be displayed in real time.

[0050] The control flow chart of the automatic cleaning system for photovoltaic panels at the site based on regional environmental data provided in this manual is as follows: Figure 7 First, the communication parameters are set on the remote host computer to ensure that they match the communication parameters of the on-site environmental monitoring terminal and the cleaning device, achieving interoperability. Then, the device address of the cleaning device is remotely configured on the host computer to identify and distinguish different cleaning actuator terminals, and thus identify and distinguish different photovoltaic panels. Finally, the control logic is set on the host computer. Two control logics are set:

[0051] Control logic 1: When the dust measurement data is greater than or equal to 200MG / M 3, and the duration is greater than or equal to 1 hour, then clean for 15 seconds (the on-site cleaning actuator automatically sprays cleaning liquid to wipe the light-receiving surface of the photovoltaic panel, the cleaning liquid sprays for 5 seconds, wipes for 10 seconds, and the total duration is 15 seconds). After that, the judgment is reset to 0, and the dust data is measured again, and the timing is restarted to see if the duration exceeds 1 hour, and the next cycle judgment is entered.

[0052] Control Logic 2: Under other circumstances, the on-site cleaning mechanism does not automatically clean the photovoltaic panels. Temperature measurement data is used to determine the ambient temperature. Based on this information, the on-site cleaning mechanism chooses whether to spray antifreeze cleaning fluid or room-temperature cleaning fluid. When the ambient temperature is 0°C or less, antifreeze cleaning fluid is sprayed; when it is above 0°C, room-temperature cleaning fluid is sprayed.

[0053] After the control logic is set, the operating mode can be selected. When the automatic mode is selected, the automatic cleaning system will automatically operate according to the set control logic, and automatically determine whether to clean the photovoltaic panels and which cleaning fluid to select based on the real-time measured dust data and temperature data; when the manual mode is selected, the on-site cleaning actuator of any device address or all on-site cleaning actuators can be remotely controlled by the host computer to clean the photovoltaic panels.

[0054] Images captured by cameras and high-definition cameras mounted on drones can be displayed on the host computer to determine the on-site environment and the cleaning effect of photovoltaic panels.

[0055] The remote host computer can display in real time the measurement data of the on-site environmental monitoring end, the currently set control logic, the currently selected operating mode, the address of the cleaning actuator that has performed the cleaning action, on-site video images and other information.

[0056] The above-mentioned various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0057] Any technician in the technical field to which the utility model belongs may make any modifications and changes in the form and details of the implementation method without departing from the spirit and scope disclosed by the utility model, but the scope of patent protection of the utility model shall still be based on the scope defined by the attached claims.

Claims

1. An automatic cleaning system for photovoltaic panels at a site based on regional environmental data, characterized in that: include: Multiple on-site environment monitoring terminals, each of which includes a first floating dust sensor, a camera, and a first communication module evenly distributed in the station area; The first floating dust sensor is used to detect the concentration of floating dust or particulate matter in the air; the camera is used to obtain the cleaning status of the photovoltaic panel surface; The first communication module is used to send the collected data of the first dust sensor and the camera to a remote monitoring terminal; The remote monitoring terminal includes a second communication module, a human-computer interaction device, and a third communication module; the second communication module is used to receive the collected data sent by the on-site monitoring terminal; the human-computer interaction device is used to present the collected data to the user and receive the control instructions input by the user; the third communication module is used to send the input control instructions to the cleaning execution mechanism; Multiple cleaning devices, each of which includes a fourth communication module, a first controller and a cleaning actuator; the fourth communication module is used to receive control instructions sent by a remote control terminal; the cleaning actuator is arranged on the side of each photovoltaic panel and is used to clean the surface of the photovoltaic panel; the first controller is used to control the cleaning actuator to execute the control instructions.

2. The automatic cleaning system for photovoltaic panels at a station according to claim 1, characterized in that: The camera and the first floating dust sensor are integrated into one.

3. The automatic cleaning system for photovoltaic panels at a station according to claim 1, characterized in that: The on-site environment monitoring terminal also includes a drone and its base station; The base station of the UAV is provided with a power supply device, a protection cabin and a second controller. The power supply device is used to charge the UAV, the protection cabin is used to protect the UAV from wind and sand damage when the UAV is grounded, and the second controller is used to control the flight path of the UAV. The drone is equipped with a high-definition camera and a fifth communication module. The high-definition camera is used to capture images of the photovoltaic panel surface during the flight of the drone, and the fifth communication module is used to transmit the images captured by the high-definition camera to a remote monitoring terminal.

4. The automatic cleaning system for photovoltaic panels at a station according to claim 3, characterized in that: The drone carries a second floating dust sensor and sends collected data of the second floating dust sensor to a remote monitoring terminal through the fifth communication module.

5. The automatic cleaning system for photovoltaic panels at a station according to claim 1, characterized in that: The cleaning execution mechanism includes: A wiper is fixed to one side of the photovoltaic panel; the wiper has a folded state and a washing state; A spray port is provided on one side of the photovoltaic panel; the spray port is used to spray cleaning liquid toward the surface of the photovoltaic panel.

6. The automatic cleaning system for photovoltaic panels at a station according to claim 5, characterized in that: The spray port comprises: The first water outlet pipe is used to discharge the cleaning liquid at room temperature; The second water outlet pipe is used to discharge the antifreeze cleaning fluid.

7. The automatic cleaning system for photovoltaic panels at a station according to claim 6, characterized in that: The on-site environment monitoring terminal also includes a temperature sensor for detecting the temperature of the site.

8. The automatic cleaning system for photovoltaic panels at a station according to claim 7, characterized in that: The cleaning execution mechanism includes: The switching valve is used to control the cleaning liquid to flow out from the first water outlet pipe or the second water outlet pipe.

9. The automatic cleaning system for photovoltaic panels at a station according to claim 6, characterized in that: At least one of the first water outlet pipe and the second water outlet pipe is connected to a water collecting tank of the station through a pipeline.

10. The automatic cleaning system for photovoltaic panels at a station according to claim 1, characterized in that: The remote monitoring terminal is at least one of a mobile phone and a desktop computer.

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