Water-saving system coupling photovoltaic panel cleaning and vegetation irrigation and control method thereof

Abstract

The invention provides a water-saving system coupling photovoltaic panel cleaning and vegetation irrigation and a control method of the water-saving system, and belongs to the technical field of photovoltaic power generation. Comprising a water collecting mechanism used for collecting water on the surface of a photovoltaic panel; the water storage mechanism is used for storing the collected water; the pressure pump is connected with the water storage mechanism and used for injecting water into the outer pump; the cleaning mechanism is connected with the pressure pump through a pipeline and used for spraying water to clean the photovoltaic panel, and a first valve is arranged on the pipeline; the irrigation mechanism is connected with the pressure pump through a pipeline and used for spraying water to irrigate vegetation, and a second valve is arranged on the pipeline; the voltage sensor is used for detecting a voltage value output by the photovoltaic panel; the humidity sensor is used for detecting the humidity value of the soil; the light intensity sensor is used for detecting illumination intensity; and the controller controls the booster pump, the first valve and the second valve to work based on the voltage value, the humidity value and the illumination intensity. The overall structure is simple, the photovoltaic panel can be cleaned in time, the generating capacity is improved, water resources are saved, and rapid vegetation restoration is promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and particularly to a water-saving system coupling photovoltaic panel cleaning and vegetation irrigation, a control method for a water-saving system coupling photovoltaic panel cleaning and vegetation irrigation, an electronic device, and a readable storage medium. Background Art

[0002] With the development of photovoltaic power generation technology, the photovoltaic power generation amount is gradually increasing. Photovoltaic panels are usually installed in the wild environment. As the usage time increases, more dust will accumulate on the surface of the photovoltaic panels, thus affecting the power generation efficiency. In the prior art, cleaning robots are usually set up for cleaning, but this method has a high cleaning cost; in addition, due to the installation of photovoltaic panels in the wild environment, the photovoltaic panels will block light and rain, causing damage to the vegetation under the photovoltaic panels and ecological damage. Summary of the Invention

[0003] The purpose of the embodiments of the present invention is to provide a water-saving system coupling photovoltaic panel cleaning and vegetation irrigation and its control method to solve the problems of high cleaning cost by using cleaning robots, and the photovoltaic panels blocking light and rain, causing damage to the vegetation under the photovoltaic panels and ecological damage.

[0004] To achieve the above purpose, the embodiments of the present invention provide a water-saving system coupling photovoltaic panel cleaning and vegetation irrigation, and the system includes:

[0005] A plurality of water collection mechanisms, each photovoltaic panel is provided with a water collection mechanism, and the water collection mechanism is used to collect the water on the surface of the photovoltaic panel;

[0006] A water storage mechanism, which is connected to each water collection mechanism through an input pipeline and is used to store the collected water;

[0007] A pressure pump, which is connected to the water storage mechanism through an outlet pipeline, and the water from the water storage mechanism is injected into the cleaning mechanism and the irrigation mechanism through the pressure pump;

[0008] A cleaning mechanism, which is connected to the pressure pump through a first pipeline and is used to spray water to clean the photovoltaic panel, and a first valve is arranged on the first pipeline;

[0009] An irrigation mechanism, which is connected to the pressure pump through a second pipeline and is used to spray water to irrigate the vegetation, and a second valve is arranged on the second pipeline;

[0010] A plurality of voltage sensors, each photovoltaic panel is provided with a voltage sensor, and the voltage sensor is used to detect the voltage value output by the corresponding photovoltaic panel;

[0011] A plurality of humidity sensors, which are used to detect the humidity value of the soil;

[0012] A light intensity sensor for detecting the light intensity;

[0013] A controller, connected to the voltage sensor, the humidity sensor and the light intensity sensor, for controlling the operation of the pressurizing pump, the first valve and the second valve based on the voltage value, the humidity value and the light intensity.

[0014] Optionally, the photovoltaic panel is inclined and fixed on the mounting bracket, and the water collection mechanism includes:

[0015] A water collection tank having a concave water collection space, and the water collection tank is installed at the lower end of the mounting bracket.

[0016] Optionally, the water storage mechanism includes:

[0017] A sedimentation tank and a water storage tank. The input end of the sedimentation tank is connected to the water collection mechanism through an input pipeline, the output end of the sedimentation tank is connected to the input end of the water storage tank through an input pipeline, a filter screen is provided at the output end of the sedimentation tank, and the sedimentation tank is used for sedimenting dust; the water storage tank is used for storing water.

[0018] Optionally, a liquid level sensor is provided in the water storage tank, and the liquid level sensor is used for detecting the liquid level value in the water storage tank;

[0019] The system further includes:

[0020] A standby water storage tank, connected to the water storage tank, and the standby water storage tank is used for injecting water into the water storage tank when the liquid level value in the water storage tank is lower than the first liquid level threshold until the liquid level value in the water storage tank is higher than the second liquid level threshold; wherein, the first liquid level threshold is less than the second liquid level threshold.

[0021] Optionally, the horizontal height of the input end of the sedimentation tank is lower than the height of the output end of the sedimentation tank;

[0022] A plurality of partition plates are arranged at intervals in the sedimentation tank, and the height of each partition plate increases sequentially along the water flow direction.

[0023] Optionally, the cleaning mechanism includes:

[0024] A plurality of nozzles;

[0025] A plurality of height adjustment brackets, with at least one nozzle provided on each height adjustment bracket. The lowest adjustable height of the height adjustment bracket is higher than the highest height of the photovoltaic panel, and the nozzles are used for spraying water on the surface of the photovoltaic panel.

[0026] Optionally, the photovoltaic panel is inclined and fixed on the mounting bracket, and the cleaning mechanism includes:

[0027] Multiple nozzles, at least one nozzle is arranged at intervals at the highest installable position of each mounting bracket, and the nozzles are used to spray water on the surface of the photovoltaic panel.

[0028] In a second aspect, an embodiment of the present invention further provides a control method for a water-saving system that couples photovoltaic panel cleaning and vegetation irrigation, which is applied to the water-saving system that couples photovoltaic panel cleaning and vegetation irrigation. The method includes:

[0029] Obtain the voltage value, humidity value, and light intensity in the past period of time;

[0030] If it is determined that there is the following situation in the past period of time, then control the first valve to conduct, and control the pressurizing pump to operate at the first power for a preset duration: the light intensity is greater than or equal to the preset light intensity threshold, the voltage value of any photovoltaic panel continuously is less than the preset voltage threshold, and the humidity value continuously is greater than or equal to the preset humidity threshold;

[0031] If it is determined that there is the following situation in the past period of time, then control the first valve and the second valve to conduct, and control the pressurizing pump to operate at the second power for a preset duration: the light intensity is greater than or equal to the preset light intensity threshold, the voltage value of any photovoltaic panel continuously is less than the preset voltage threshold, and the humidity value continuously is less than the preset humidity threshold;

[0032] If it is determined that there is the following situation in the past period of time, then control the second valve to conduct, and control the pressurizing pump to operate at the first power for a preset duration: the light intensity continuously is less than the preset light intensity threshold and the humidity value continuously is less than the preset humidity threshold;

[0033] Wherein, the first power is less than the second power.

[0034] In a third aspect, an embodiment of the present invention further provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the control method for the water-saving system that couples photovoltaic panel cleaning and vegetation irrigation described above.

[0035] In a fourth aspect, an embodiment of the present invention further provides a readable storage medium, on which instructions are stored, and the instructions are used to make a machine execute the control method for the water-saving system that couples photovoltaic panel cleaning and vegetation irrigation described above.

[0036] Through the technical solution, a water collection mechanism is arranged on the photovoltaic panel to collect the water on the surface of the photovoltaic panel, and a water storage mechanism is arranged for filtering and storage. Then, based on the voltage value, humidity value, and light intensity, the stored water is used to clean the photovoltaic panel and irrigate the vegetation. The overall structure is simple, the photovoltaic panel can be cleaned in time, manpower and material resources are reduced, the power generation is increased, water resources are saved, and the rapid repair of vegetation is promoted.

[0037] Other features and advantages of the embodiments of the present invention will be described in detail in the following specific implementation section. Brief Description of the Drawings

[0038] The drawings are used to provide a further understanding of the embodiments of the present invention, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the embodiments of the present invention, but do not constitute a limitation to the embodiments of the present invention. In the drawings:

[0039] Figure 1 is a schematic structural diagram of a water-saving system that couples the cleaning of photovoltaic panels and the irrigation of vegetation provided by the present invention;

[0040] Figure 2 is a system structure block diagram of the water-saving system that couples the cleaning of photovoltaic panels and the irrigation of vegetation provided by the present invention;

[0041] Figure 3 is a structural sectional view of the sedimentation tank provided by the present invention;

[0042] Figure 4 is a flowchart of the control method of the water-saving system that couples the cleaning of photovoltaic panels and the irrigation of vegetation provided by the present invention.

[0043] Description of the Reference Numerals

[0044] 1 - Water collection mechanism; 2 - Water storage mechanism; 3 - Pressure pump;

[0045] 4 - Cleaning mechanism; 5 - Irrigation mechanism; 7 - Controller;

[0046] 8 - Backup water storage tank; 21 - Sedimentation tank; 22 - Water storage tank;

[0047] 23 - Filter screen; 61 - Voltage sensor; 62 - Humidity sensor;

[0048] 63 - Light intensity sensor; 101 - Photovoltaic panel; 102 - Mounting bracket;

[0049] 211 - Partition board; 401 - First valve; 501 - Second valve. Detailed Description of the Invention

[0050] The following will describe in detail the specific implementation of the embodiments of the present invention with reference to the drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the embodiments of the present invention, and is not used to limit the embodiments of the present invention.

[0051] In the embodiments of the present invention, unless otherwise stated, the orientation words such as "upper, lower, left, right" generally refer to the orientation or position relationship based on the drawings, or the orientation or position relationship in which the invention product is usually placed during use.

[0052] The terms "first", "second", "third", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0053] The terms "parallel", "perpendicular", etc. do not mean that the components are required to be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" only means that its direction is more parallel relative to "perpendicular", and does not mean that the structure must be completely parallel, but may be slightly inclined.

[0054] The terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal, vertical or hanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0055] In addition, terms such as "substantially", "basically", etc. are intended to indicate that the relevant content does not require absolute precision, but may have a certain deviation. For example: "substantially equal" does not merely mean absolute equality. Since it is difficult to achieve absolute "equality" in the actual production and operation process, there is generally a certain deviation. Therefore, in addition to absolute equality, "substantially equal" also includes the above-mentioned cases with a certain deviation. Taking this as an example, in other cases, unless otherwise specified, terms such as "substantially", "basically", etc. have meanings similar to the above.

[0056] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0057] Figure 1 is a schematic structural diagram of a water-saving system that couples photovoltaic panel cleaning and vegetation irrigation in an embodiment provided by the present invention; Figure 2 is a system structural block diagram of a water-saving system that couples photovoltaic panel cleaning and vegetation irrigation provided by the present invention; Figure 3 is a structural sectional view of a sedimentation tank provided by the present invention; Figure 4 is a flowchart of a control method for a water-saving system that couples photovoltaic panel cleaning and vegetation irrigation provided by the present invention.

[0058] As Figure 1-2 shown, this embodiment provides a water-saving system that couples photovoltaic panel cleaning and vegetation irrigation, and the system includes:

[0059] A plurality of water collection mechanisms 1, with one water collection mechanism 1 provided on each photovoltaic panel 101, and the water collection mechanism 1 is used to collect the water on the surface of the photovoltaic panel 101;

[0060] A water storage mechanism 2, connected to each water collection mechanism 1 through an input pipeline, and is used to store the collected water;

[0061] A pressure pump 3, connected to the water storage mechanism 2 through an outlet pipeline, and the water from the water storage mechanism 2 is injected into the cleaning mechanism 4 and the irrigation mechanism 5 through the pressure pump 3;

[0062] A cleaning mechanism 4, connected to the pressure pump 3 through a first pipeline, and is used to spray water to clean the photovoltaic panel 101, and a first valve 401 is provided on the first pipeline;

[0063] An irrigation mechanism 5, connected to the pressure pump 3 through a second pipeline, and is used to spray water to irrigate vegetation, and a second valve 501 is provided on the second pipeline;

[0064] A plurality of voltage sensors 61, with one voltage sensor 61 provided on each photovoltaic panel 101, and the voltage sensor 61 is used to detect the voltage value output by the corresponding photovoltaic panel 101;

[0065] A humidity sensor 62, used to detect the humidity value of the soil;

[0066] A light intensity sensor 63, used to detect the light intensity;

[0067] A controller 7, connected to the voltage sensor 61, the humidity sensor 62 and the light intensity sensor 63, and is used to control the operation of the pressure pump 3, the first valve 401 and the second valve 501 based on the voltage value, the humidity value and the light intensity.

[0068] Specifically, in this embodiment, a plurality of photovoltaic panels form a photovoltaic field, and the photovoltaic field is divided into regions (for example, positions with the same soil drying speed or a change less than a set value are divided into the same region to ensure the accuracy of humidity control), and a set of the above-mentioned water-saving system for coupling photovoltaic panel cleaning and vegetation irrigation is arranged in each region for independent control of each region, so as to improve the accuracy of control.

[0069] The pressure pump 3 can increase the pipeline pressure and improve the water flow rate, so as to ensure the cleaning effect and the irrigation effect; the irrigation mechanism 5 can be set as a drip irrigation tape or a drip irrigation head, etc., and is arranged at intervals in the corresponding region, and the irrigation range radius is 10 m; the humidity sensor 62 is set as a plurality and is arranged at intervals at different positions in the region to obtain the humidity values at different positions, and all the humidity values are averaged, and the average value is used as the humidity value of the region for subsequent control; the first valve 401 and the second valve 501 can adopt solenoid valves.

[0070] In one embodiment, as Figure 1-2 shown, the photovoltaic panel 101 is fixedly inclined on the mounting bracket 102, and the water collection mechanism 1 includes:

[0071] A water collection tank having a concave water collection space, and the water collection tank is installed at the lower end of the mounting bracket 102.

[0072] Specifically, in this embodiment, the water collection mechanism 1 is set as a water collection tank. The water collection tank is a semi-open and closed structure with a hollow interior and is installed at the lower end of the mounting bracket 102. The water dripping on the photovoltaic panel 101 moves towards the bottom end of the mounting bracket 102 under the action of gravity, thus converging in the water collection tank. A through hole is opened at the bottom end of the water collection tank and is connected to the water storage mechanism 2 through an input pipeline for filtration and storage.

[0073] In one embodiment, as Figure 1-3 shown, the water storage mechanism 2 includes:

[0074] A sedimentation tank 21 and a water storage tank 22. The input end of the sedimentation tank 21 is connected to the water collection mechanism 1 through an input pipeline. The output end of the sedimentation tank 21 is connected to the input end of the water storage tank 22 through a pipeline. A filter screen 23 is provided at the output end of the sedimentation tank 21. The sedimentation tank 21 is used for sedimenting dust; the water storage tank 22 is used for storing water.

[0075] Specifically, in this embodiment, since the collected water is usually rainwater or sewage mixed with dust after cleaning the surface of the photovoltaic panel 101, if the sewage is reused for cleaning the photovoltaic panel 101, it will not only fail to remove the stains on the surface of the photovoltaic panel 101, but also cause the expansion of pollution and blockage of the cleaning mechanism 4 and the irrigation mechanism 5. Therefore, a sedimentation tank 21 is provided to remove dust, and a water storage tank 22 is provided to store the filtered water; in order to ensure the filtering effect, a filter screen 23 is provided in the sedimentation tank 21. Preferably, the end of the pipeline at the output end of the sedimentation tank 21 extends into the sedimentation tank 21, and the filter screen 23 is provided on the pipeline at the output end of the sedimentation tank 21, so it is located in the sedimentation tank 21, which can ensure the purification effect.

[0076] In one embodiment, a liquid level sensor is provided in the water storage tank 22, and the liquid level sensor is used to detect the liquid level value of the water storage tank 22;

[0077] As Figure 1 shown, the system further includes:

[0078] A standby water storage tank 8 is connected to the water storage tank 22. The standby water storage tank 8 is used to inject water into the water storage tank 22 when the liquid level value in the water storage tank 22 is lower than the first liquid level threshold until the liquid level value in the water storage tank 22 is higher than the second liquid level threshold. Wherein, the first liquid level threshold is less than the second liquid level threshold.

[0079] Specifically, during use, as the number of irrigation times increases, there will be a certain amount of water loss. For example, in the water-scarce season in winter, the amount of water in the water storage tank 22 will decrease and cannot meet the use requirements. Therefore, the standby water storage tank 8 is set up to store water sources in the standby water storage tank 8, so as to inject water into the water storage tank 22 when the liquid level value in the water storage tank 22 is lower than the first liquid level threshold until the liquid level value in the water storage tank 22 is higher than the second liquid level threshold.

[0080] In one embodiment, as Figure 1-3 shown, the horizontal height of the input end of the sedimentation tank 21 is lower than the output end of the sedimentation tank 21;

[0081] A plurality of partition plates 211 are arranged at intervals in the sedimentation tank 21, and the heights of the partition plates 211 increase in sequence along the water flow direction.

[0082] Specifically, in this embodiment, the height of the input end of the sedimentation tank 21 is lower than the height of the output end of the sedimentation tank 21, so that when water enters the sedimentation tank 21, it needs to slowly gather to a certain amount before it can enter the water storage tank 22, thus ensuring the filtering effect; a plurality of partition plates 211 are arranged at intervals in the sedimentation tank 21, and along the water flow direction, the heights of the partition plates 211 increase in sequence, so as to divide the inside of the sedimentation tank 21 into multiple sedimentation areas. The water entering the sedimentation tank 21 passes through the sedimentation areas in sequence, which can improve the sedimentation effect of dust. For example, along the water flow direction, 4 sedimentation areas are divided at one time, namely the first sedimentation area, the second sedimentation area, the third sedimentation area, and the fourth sedimentation area. After the water enters the sedimentation tank 21, first, it gathers in the first sedimentation area for sedimentation. When the first sedimentation area is full of water, it enters the second sedimentation area for sedimentation, and so on. Finally, it enters the fourth sedimentation area and then enters the water storage tank 22 through the fourth sedimentation area. By adopting this method, the sedimentation effect of dust can be greatly improved, the cleanliness of the water used to clean the photovoltaic panel 101 can be ensured, and thus the cleaning effect can be ensured; in addition, an openable and closable cover plate is arranged at the top corresponding to each sedimentation area, so as to facilitate the cleaning of the sedimentation tank 21, and a valve is arranged at the bottom corresponding to the sedimentation area, so as to facilitate the discharge of sewage.

[0083] In one embodiment, as Figure 1 shown, the photovoltaic panel 101 is fixedly inclined on the mounting bracket 102, and the cleaning mechanism 4 includes:

[0084] Multiple spray heads;

[0085] Multiple height-adjustable brackets, with at least one nozzle provided on each height-adjustable bracket. The lowest adjustable height of the height-adjustable bracket is higher than the highest height of the photovoltaic panel 101, and the nozzle is used to spray water onto the surface of the photovoltaic panel 101.

[0086] Specifically, in this embodiment, the photovoltaic panels in the same area are at the same height and are inclined by the mounting bracket 102. The nozzles are arranged on the height-adjustable brackets, and the spraying height of the nozzles is adjusted according to the specific installation positions, thereby further enhancing the cleaning effect. Since the mounting bracket 102 is inclined, during the process of the nozzles spraying water, the water can move downward along the surface of the photovoltaic panel 101 under the action of gravity, thus realizing the cleaning of the surface of the photovoltaic panel 101. At the same time, the water collecting tank provided at the lower end of the mounting bracket 102 can collect the water, which not only improves the cleaning effect but also realizes the recycling of water resources. Preferably, the height-adjustable brackets are arranged between two photovoltaic panels 101.

[0087] More specifically, the height-adjustable brackets can be set as threaded telescopic rods or snap-type telescopic rods, and the height can be adjusted to 30 cm above the photovoltaic panel. According to the specific specifications and dimensions of the photovoltaic panel and the scale of the photovoltaic area, the number of nozzles is reasonably buried, so that each photovoltaic panel is within the spraying range, and at the same time, the nozzles are distributed in a straight line to facilitate the laying of the water delivery pipeline.

[0088] In another embodiment, as Figure 1 shown, the photovoltaic panel 101 is fixedly inclined on the mounting bracket 102, and the cleaning mechanism 4 includes:

[0089] Multiple nozzles, with at least one nozzle arranged at intervals at the highest installable position of each mounting bracket 102, and the nozzle is used to spray water onto the surface of the photovoltaic panel 101.

[0090] Specifically, in this embodiment, the mounting bracket 102 is inclined, and multiple nozzles are arranged in parallel at the highest position of the mounting bracket 102. Thus, during the process of the nozzles spraying water, the water can move downward along the surface of the photovoltaic panel 101 under the action of gravity, thereby realizing the cleaning of the surface of the photovoltaic panel 101. At the same time, the water collecting tank provided at the lower end of the mounting bracket 102 can collect the water, which not only improves the cleaning effect but also realizes the recycling of water resources.

[0091] As Figure 4 shown, this embodiment also provides a control method for a water-saving system that couples photovoltaic panel cleaning and vegetation irrigation, which is applied to the above-mentioned water-saving system that couples photovoltaic panel cleaning and vegetation irrigation. The method includes:

[0092] Obtaining the voltage value, humidity value, and light intensity within a past period of time;

[0093] If it is determined that the following conditions exist in the past period of time, control the first valve to conduct and control the pressurizing pump to operate at the first power for a preset duration: the light intensity is greater than or equal to the preset light intensity threshold, the voltage value of any photovoltaic panel continuously is less than the preset voltage threshold, and the humidity value continuously is greater than or equal to the preset humidity threshold;

[0094] If it is determined that the following conditions exist in the past period of time, control the first valve and the second valve to conduct and control the pressurizing pump to operate at the second power for a preset duration: the light intensity is greater than or equal to the preset light intensity threshold, the voltage value of any photovoltaic panel continuously is less than the preset voltage threshold, and the humidity value continuously is less than the preset humidity threshold;

[0095] If it is determined that the following conditions exist in the past period of time, control the second valve to conduct and control the pressurizing pump to operate at the first power for a preset duration: the light intensity continuously is less than the preset light intensity threshold and the humidity value continuously is less than the preset humidity threshold;

[0096] Wherein, the first power is less than the second power.

[0097] Specifically, in this embodiment, during the operation of the photovoltaic panel, since the output voltage of the photovoltaic panel will be affected after the surface is covered with dust, by monitoring the voltage value of the photovoltaic panel, the power generation efficiency of the photovoltaic panel can be accurately grasped, and whether the photovoltaic panel needs to be cleaned can be determined according to the magnitude of the voltage value; while at night or on cloudy days, due to the weak light, the power generation efficiency of the photovoltaic panel is low at this time, and the output voltage value is small, but cleaning is not required at this time. Therefore, in this solution, by combining the light intensity and the voltage value, when the light intensity is greater than or equal to the preset light intensity threshold and there is a situation where the voltage value of any photovoltaic panel continuously is less than the preset voltage threshold (such as the output voltage of the solar panel is lower than 80% of the theoretical output voltage), at this time, the dust has accumulated to a certain amount, and water is automatically sprayed on the photovoltaic panel for cleaning; in addition, when the humidity value continuously is less than the preset humidity threshold, it is considered that the soil is relatively dry and irrigation is required.

[0098] More specifically, in this embodiment, when there is a situation where the light intensity is greater than or equal to the preset light intensity threshold, the voltage value of any photovoltaic panel continuously is less than the preset voltage threshold, and the humidity value continuously is less than the preset humidity threshold within a past period of time, it indicates that the cleaning of the photovoltaic panel and the irrigation of the vegetation need to be carried out simultaneously. Then, control the first valve and the second valve to conduct, and control the pressurized pump to operate at a larger operating power, that is, the second power, for a preset duration; when there is a situation where the light intensity is greater than or equal to the preset light intensity threshold, the voltage value of any photovoltaic panel continuously is less than the preset voltage threshold, and the humidity value continuously is greater than or equal to the preset humidity threshold within a past period of time, only the cleaning of the photovoltaic panel is required. Then, control the first valve to conduct, and control the pressurized pump to operate at a smaller operating power, that is, the first power, for a preset duration; when the light intensity continuously is less than the preset light intensity threshold and the humidity value continuously is less than the preset humidity threshold within a past period of time, it indicates that it is in rainy or night time at this moment, and it is impossible to determine whether the reduction of the power generation efficiency of the photovoltaic panel is caused by surface dust or the reduction of the light intensity. Therefore, the cleaning of the photovoltaic panel is not carried out at this time, and only the irrigation of the vegetation is carried out. Then, control the second valve to conduct, and control the pressurized pump to operate at a smaller operating power, that is, the first power, for a preset duration. The preset duration of operation can be set according to experience. Preferably, the past period of time can be set to 12 hours, and the data acquisition interval can be set to 1 hour, etc.

[0099] Through the above solution, it is possible to automatically and timely clean the photovoltaic panel based on the voltage value, humidity value, and light intensity, reduce manpower and material resources, increase the power generation amount, save water resources, and promote the rapid restoration of the vegetation.

[0100] In another embodiment, when there is a situation where the light intensity is greater than or equal to the preset light intensity threshold, the voltage value of any photovoltaic panel continuously is less than the preset voltage threshold, and the humidity value continuously is greater than or equal to the preset humidity threshold within a past period of time, controlling the pressurized pump to operate at the first power for a preset duration and controlling the first valve to conduct can be replaced by controlling the pressurized pump to stop operating and controlling the first valve to close until the voltage value collected by the voltage sensor is greater than the set voltage value (such as the output voltage of the solar panel reaches 95% of the theoretical output voltage). When there is a situation where the light intensity is greater than or equal to the preset light intensity threshold, the voltage value of any photovoltaic panel continuously is less than the preset voltage threshold, and the humidity value continuously is less than the preset humidity threshold within a past period of time, then controlling the first valve and the second valve to conduct, and controlling the pressurized pump to operate at the second power for a preset duration can be replaced by: controlling the pressurized pump to stop operating and controlling the first valve and the second valve to close until the voltage value is greater than the set voltage value and the humidity value is greater than the set humidity value; when the light intensity continuously is less than the preset light intensity threshold and the humidity value continuously is less than the preset humidity threshold within a past period of time, then controlling the second valve to conduct, and controlling the pressurized pump to operate at the second power for a preset duration can be replaced by controlling the pressurized pump to stop operating and controlling the second valve to close until the humidity value is greater than the set humidity value.

[0101] More specifically, as shown in Table 1 below, corresponding preset humidity thresholds (lower limits of water content) and set humidity values (upper limits of water content) are set according to different seasons to achieve precise control.

[0102] Table 1 Schematic Table of Water Content in Different Seasons

[0103]

[0104] In another embodiment, multiple photovoltaic panels form a photovoltaic field. The photovoltaic field is divided into regions (for example, positions with the same or less than a set value change in soil drying speed are divided into the same region to ensure the accuracy of humidity control). And the above-mentioned water-saving systems are respectively arranged in each region for independent control of each region, and the above-mentioned control method is implemented for each region, which can improve the accuracy of control.

[0105] In another embodiment, if there is a situation where the light intensity is greater than or equal to the preset light intensity threshold, the voltage value of any photovoltaic panel continuously is less than the preset voltage threshold, and the humidity value continuously is greater than or equal to the preset humidity threshold within a past period of time, then control the first valve to conduct, and control the pressurized pump to operate at the first power for a preset duration. After that, if the voltage value of the photovoltaic panel is still less than the preset voltage threshold, it indicates that the photovoltaic panel may have a fault, and an alarm is generated for timely maintenance.

[0106] In another embodiment, if there is a situation where the light intensity is greater than or equal to the preset light intensity threshold, the voltage value of any photovoltaic panel continuously is less than the preset voltage threshold, and the humidity value continuously is less than the preset humidity threshold within a past period of time, then control the first valve and the second valve to conduct, and control the pressurized pump to operate at the second power for a preset duration. After that, if the voltage value of the photovoltaic panel is still less than the preset voltage threshold and / or the humidity value is still less than the preset humidity threshold, it indicates that the photovoltaic panel and / or the humidity sensor may have a fault, and an alarm is generated for timely maintenance.

[0107] In another embodiment, if there is a situation where the light intensity continuously is less than the preset light intensity threshold and the humidity value continuously is less than the preset humidity threshold within a past period of time, then control the second valve to conduct, and control the pressurized pump to operate at the first power for a preset duration. After that, if the humidity value is still less than the preset humidity threshold, it indicates that the humidity sensor may have a fault, and an alarm is generated for timely maintenance.

[0108] More specifically, in the above-mentioned solution, multiple humidity sensors can be set and arranged at different positions in the region at intervals to obtain the humidity values at different positions, and the average value of all the humidity values is calculated and used as the humidity value of the region for subsequent control.

[0109] An electronic device in this embodiment includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the control method of the water-saving system for coupled photovoltaic panel cleaning and vegetation irrigation described above.

[0110] A readable storage medium in this embodiment stores instructions for causing a machine to execute the control method of the water-saving system for coupled photovoltaic panel cleaning and vegetation irrigation described above.

[0111] The optional implementation manners of the embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above implementation manners. Within the scope of the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the protection scope of the embodiments of the present invention.

[0112] Those skilled in the art can understand that all or part of the steps in implementing the methods of the above embodiments can be completed by instructing relevant hardware through a program. The program is stored in a storage medium and includes several instructions for causing a single-chip microcomputer, a chip, or a processor to execute all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: various media such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc that can store program codes.

[0113] The optional implementation manners of the present invention have been described in detail above with reference to the accompanying drawings. However, the implementation manners of the present invention are not limited to the specific details in the above implementation manners. Within the scope of the technical concept of the implementation manners of the present invention, various simple modifications can be made to the technical solutions of the implementation manners of the present invention, and these simple modifications all fall within the protection scope of the implementation manners of the present invention. Additionally, it should be noted that, among the various specific technical features described in the above specific implementation manners, they can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present invention's implementation manners do not separately describe various possible combination manners.

[0114] In addition, any combination can be made among the various different implementation manners of the embodiments of the present invention as long as it does not violate the idea of the embodiments of the present invention, and it should also be regarded as the content disclosed in the embodiments of the present invention.

Claims

1. A water-saving system for coupling photovoltaic panel cleaning and vegetation irrigation, characterized in that: The system comprises: A plurality of water collection mechanisms (1), each photovoltaic panel (101) being provided with a water collection mechanism (1), the water collection mechanism (1) being used to collect water on the surface of the photovoltaic panel (101); A water storage mechanism (2) is connected to each water collection mechanism (1) via an input pipe and is used to store the collected water; A pressure pump (3) is connected to the water storage mechanism (2) via a water outlet pipe, and water from the water storage mechanism (2) is injected into the cleaning mechanism (4) and the irrigation mechanism (5) via the pressure pump (3); A cleaning mechanism (4), connected to the pressure pump (3) via a first pipe, for spraying water to clean the photovoltaic panel (101), wherein the first pipe is provided with a first valve (401); an irrigation mechanism (5), connected to the pressure pump (3) via a second pipe, for spraying water to irrigate vegetation, wherein the second pipe is provided with a second valve (501); A plurality of voltage sensors (61), each photovoltaic panel (101) being provided with a voltage sensor (61), the voltage sensor (61) being used to detect a voltage value output by the corresponding photovoltaic panel (101); A humidity sensor (62) is used to detect the humidity value of the soil; A light intensity sensor (63) for detecting light intensity; The controller (7) is connected to the voltage sensor (61), the humidity sensor (62) and the light intensity sensor (63), and is used to control the operation of the booster pump (3), the first valve (401) and the second valve (501) based on the voltage value, the humidity value and the light intensity.

2. The water-saving system for coupling photovoltaic panel cleaning and vegetation irrigation according to claim 1, characterized in that: The photovoltaic panel (101) is tilted and fixed on a mounting bracket (102), and the water collection mechanism (1) comprises: A water collecting trough having a concave water collecting space, the water collecting trough being installed at the lower end of the installation bracket (102).

3. The water-saving system for coupling photovoltaic panel cleaning and vegetation irrigation according to claim 1, characterized in that: The water storage mechanism (2) comprises: A sedimentation tank (21) and a water storage tank (22), wherein the input end of the sedimentation tank (21) is connected to the water collection mechanism (1) via an input pipe, the output end of the sedimentation tank (21) is connected to the input end of the water storage tank (22) via a pipe, a filter screen (23) is provided at the output end of the sedimentation tank (21), the sedimentation tank (21) is used to precipitate dust; and the water storage tank (22) is used to store water.

4. The water-saving system for coupling photovoltaic panel cleaning and vegetation irrigation according to claim 3 is characterized in that: A liquid level sensor is arranged in the water storage tank (22), and the liquid level sensor is used to detect the liquid level value in the water storage tank (22); The system further comprises: A backup water storage tank (8) is connected to the water storage tank (22), and the backup water storage tank (8) is used to inject water into the water storage tank (22) when the liquid level value in the water storage tank (22) is lower than a first liquid level threshold, until the liquid level value in the water storage tank (22) is higher than a second liquid level threshold; wherein the first liquid level threshold is lower than the second liquid level threshold.

5. The water-saving system for coupling photovoltaic panel cleaning and vegetation irrigation according to claim 3 is characterized in that: The level of the input end of the sedimentation tank (21) is lower than the output end of the sedimentation tank (21); A plurality of partitions (211) are arranged at intervals in the sedimentation tank (21), and the height of each partition (211) increases sequentially along the flow direction of water.

6. The water-saving system for coupling photovoltaic panel cleaning and vegetation irrigation according to claim 1, characterized in that: The cleaning mechanism (4) comprises: Multiple sprinkler heads; A plurality of height adjustment brackets, each of which is provided with at least one spray head, the lowest adjustable height of the height adjustment bracket being higher than the highest height of the photovoltaic panel (101), and the spray head being used for spraying water onto the surface of the photovoltaic panel (101).

7. The water-saving system for coupling photovoltaic panel cleaning and vegetation irrigation according to claim 1, characterized in that: The photovoltaic panel (101) is tilted and fixed on a mounting bracket (102), and the cleaning mechanism (4) comprises: A plurality of spray heads, with at least one spray head being arranged at intervals at the highest installable position of each mounting bracket (102), the spray head being used to spray water onto the surface of the photovoltaic panel (101).

8. A control method for a water-saving system for coupling photovoltaic panel cleaning and vegetation irrigation, applied to the water-saving system for coupling photovoltaic panel cleaning and vegetation irrigation as claimed in any one of claims 1 to 7, characterized in that: The method comprises: Get the voltage value, humidity value and light intensity over a period of time; If it is determined that the following conditions exist within a period of time in the past, the first valve is controlled to be turned on, and the booster pump is controlled to operate at the first power for a preset time period: the light intensity is greater than or equal to the preset light intensity threshold, the voltage value of any photovoltaic panel is continuously less than the preset voltage threshold, and the humidity value is continuously greater than or equal to the preset humidity threshold; If it is determined that the following conditions exist within a period of time in the past, the first valve and the second valve are controlled to be turned on, and the booster pump is controlled to operate at the second power for a preset time: the light intensity is greater than or equal to the preset light intensity threshold, the voltage value of any photovoltaic panel is continuously less than the preset voltage threshold, and the humidity value is continuously less than the preset humidity threshold; If it is determined that the following conditions exist within a period of time in the past, the second valve is controlled to be turned on, and the booster pump is controlled to operate at the first power for a preset time period: the light intensity is continuously less than the preset light intensity threshold and the humidity value is continuously less than the preset humidity threshold; The first power is less than the second power.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the control method of the water-saving system for coupling photovoltaic panel cleaning and vegetation irrigation described in claim 8 is implemented.

10. A readable storage medium having instructions stored thereon, characterized in that: The instruction is used to enable the machine to execute the control method of the water-saving system coupling photovoltaic panel cleaning and vegetation irrigation as described in claim 8.

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