Irrigation method and system based on valley type irrigation area

Abstract

The application relates to the irrigation technical field and discloses an irrigation method and system based on a valley type irrigation area, which comprises the following steps: determining a target hydropower station according to position information of the valley type irrigation area and obtaining a first power generation amount; determining a high area based on the geomorphic features of the valley type irrigation area, dividing the valley type irrigation area into at least one irrigation unit with the high area as the center; determining a water pump water lifting unit and a high-level water pool unit corresponding to each irrigation unit; wherein the water pump water lifting unit is used for injecting irrigation water into the high-level water pool unit; the high-level water pool unit is located in the high area; the high-level water pool unit is used for storing irrigation water; and self-pressure irrigation is carried out according to the water head difference between the high-level water pool unit and the irrigation unit. The application changes the previous mode of directly conveying and distributing water to farmland by using a water lifting pump station, adopts the mode of 'fall difference power generation-water lifting pump station-high-level water pool-self-pressure irrigation', realizes the conversion of 'potential energy-electric energy-potential energy', and is more efficient, economical and energy-saving.

Description

Technical Field

[0001] This invention relates to the field of irrigation technology, and more specifically to irrigation methods and systems based on valley-type irrigation districts. Background Technology

[0002] my country has numerous inland rivers and widespread river valleys. The soil in these valleys is fertile, irrigation water sources are relatively stable, land use efficiency is high, and they are suitable for agricultural production. Agricultural production in these valleys can avoid agricultural losses caused by natural disasters such as drought or floods, and they have significant development space and potential.

[0003] The river valley irrigation area has a unique "V"-shaped topography, resulting in a distribution pattern of "water in the valley, fields on the valley." Although the valley possesses abundant water resources, a large portion of the dry land still cannot be irrigated. Due to the high cost of gravity-flow irrigation projects, the high operating costs of pumping stations, and the incomplete supporting equipment for irrigation systems, the abundant water resources within the valley cannot effectively and promptly irrigate the farmland in the irrigated areas. This engineering-related water shortage has become one of the important reasons restricting agricultural development in the river valley region.

[0004] To address the aforementioned issues, patent application CN116240862A discloses a karez-type irrigation and drainage corridor built in arid irrigation areas. This corridor draws groundwater to the surface via gravity-fed water conveyance mains. While it solves the water diversion problem in arid areas, it still requires pumping stations for pressurized irrigation and is not suitable for solving the water distribution problem in valley-type irrigation areas.

[0005] Therefore, there is an urgent need for a water distribution method suitable for valley-type irrigation areas that can reduce costs and make full use of water resources. Summary of the Invention

[0006] In view of this, the present invention provides an irrigation method and system based on valley-type irrigation districts to solve the problems of high cost, inability to fully utilize water resources, and unsuitability for solving water distribution problems in valley-type irrigation districts in related technologies.

[0007] In a first aspect, the present invention provides an irrigation method based on a valley-type irrigation district, the irrigation method based on a valley-type irrigation district comprising:

[0008] The target hydropower station is determined based on the location information of the valley-type irrigation area, and the first power generation is obtained; the target hydropower station is used to provide irrigation water to the valley-type irrigation area and generate electricity by head-drop based on the reservoir corresponding to the target hydropower station, and the target hydropower station is an upstream hydropower station related to the valley-type irrigation area; the first power generation is the electricity generated by head-drop power generation, which is applied to the valley-type irrigation area;

[0009] Based on the geomorphological characteristics of the valley-type irrigation area, highland areas are identified, and the valley-type irrigation area is divided into at least one irrigation unit with the highland areas as the center; the highland areas are areas where the difference in elevation between them and the surrounding areas is greater than a preset value.

[0010] Determine the water pump lifting unit and elevated water tank unit corresponding to each irrigation unit;

[0011] Each irrigation unit is controlled by a corresponding water pump lifting unit and an elevated water tank unit for water supply; the water pump lifting unit is used to inject irrigation water into the elevated water tank unit; the elevated water tank unit is located in a high-altitude area; the elevated water tank unit is used to store irrigation water;

[0012] Self-pressurized irrigation is performed based on the head difference between the elevated water tank unit and the irrigation unit.

[0013] In one optional implementation, determining the target hydropower station based on the location information of the valley-type irrigation area includes:

[0014] Based on the location information of the valley-type irrigation area, the upstream hydropower station that is less than or equal to the preset distance from the valley-type irrigation area is identified as the target hydropower station.

[0015] In one optional implementation, determining the elevated water tank unit corresponding to each irrigation unit includes:

[0016] The elevated water tank unit is determined based on the topographic features of the highland area; wherein, when the first pressure and the second pressure are different, a pressure reduction and energy dissipation unit is set up, and the pressure difference between the first pressure and the second pressure is less than or equal to the maximum adjustment range of the pressure reduction and energy dissipation unit; the first pressure is the field irrigation pressure of the irrigation unit; the second pressure is the pressure of the irrigation water flowing out of the elevated water tank unit and arriving at the irrigation unit.

[0017] In one optional implementation, the irrigation method based on valley-type irrigation districts further includes:

[0018] Acquire real-time monitoring data; the real-time monitoring data includes: the water demand and first pressure of each irrigation unit, the water storage and second pressure of each high-level water tank unit;

[0019] Feedback control is performed based on the real-time monitoring data; the feedback control includes adjusting the water storage capacity or the second pressure of the high-level water tank unit.

[0020] In one optional implementation, when the actual electricity consumption in the valley-type irrigation area exceeds the first power generation, the irrigation method based on the valley-type irrigation area further includes:

[0021] Obtain a second power generation and a third power generation; the second power generation is the electricity generated by wind power generation, and the third power generation is the electricity generated by photovoltaic power generation;

[0022] A joint dispatch model is determined based on the first power generation, the second power generation, and the third power generation, and power is supplied to the valley-type irrigation area based on the joint dispatch model.

[0023] Secondly, the present invention provides an irrigation system based on a valley-type irrigation district, which is applied to the irrigation method based on a valley-type irrigation district described in the first aspect or any corresponding embodiment thereof. The irrigation system based on a valley-type irrigation district includes:

[0024] The system comprises a first processing module, a second processing module, a third processing module, a fourth processing module, a self-pressurized water distribution module, and a power transmission line; the self-pressurized water distribution module includes a water pump lifting unit and an elevated water tank unit.

[0025] The first processing module is used to determine the target hydropower station based on the location information of the valley-type irrigation area and obtain the first power generation; the target hydropower station is used to provide irrigation water to the valley-type irrigation area and generate electricity by head-drop based on the reservoir corresponding to the target hydropower station, and the target hydropower station is an upstream hydropower station related to the valley-type irrigation area; the first power generation is the electricity generated by head-drop power generation and is applied to the valley-type irrigation area.

[0026] The second processing module is used to determine highland areas based on the geomorphological features of the valley-type irrigation area, and to divide the valley-type irrigation area into at least one irrigation unit with the highland areas as the center; the highland areas are areas whose elevation difference with the surrounding areas is greater than a preset value;

[0027] The third processing module is used to determine the water pump lifting unit and the elevated water tank unit corresponding to each irrigation unit; wherein, each irrigation unit is controlled by the corresponding water pump lifting unit and the elevated water tank unit for water supply; the elevated water tank unit is located in a high-altitude area;

[0028] The water pump lifting unit is used to inject irrigation water into the elevated water tank unit;

[0029] The elevated water tank unit is used to store irrigation water;

[0030] The fourth processing module is used to perform self-pressurized irrigation based on the head difference between the elevated water tank unit and the irrigation unit.

[0031] The power transmission line is used to deliver the first power generation to the water pump lifting unit and the elevated water tank unit corresponding to each irrigation unit.

[0032] In one optional embodiment, the water pump lifting unit includes: a water pump, a first valve, and a first water delivery pipe, wherein the first valve is provided at both ends of the first water delivery pipe;

[0033] The elevated water tank unit includes: an elevated water tank, a second water supply pipeline, and a second valve, wherein the second water supply pipeline is equipped with the second valve.

[0034] In one optional embodiment, the self-pressurized water distribution module further includes: a sediment cascade treatment unit and a pressure reduction and energy dissipation unit;

[0035] The sediment cascade treatment unit includes: a pre-pump filter, a post-pump screen filter, and a post-pump disc filter; the sediment cascade treatment unit is used to filter irrigation water.

[0036] The pressure-reducing and energy-dissipating unit includes: a pressure-reducing valve, a pipeline power generation device, and a third valve; the pressure-reducing and energy-dissipating unit is set in an irrigation unit with a first pressure and a second pressure; the first pressure is the field irrigation pressure of the irrigation unit; the second pressure is the pressure of the irrigation water flowing out of the high-level water tank unit and reaching the irrigation unit.

[0037] In one alternative implementation, the irrigation system based on the valley-type irrigation district further includes a control and monitoring module.

[0038] The control and monitoring module includes: a field monitoring unit and a pipeline control unit;

[0039] The field monitoring unit is used to monitor each irrigation unit in real time and obtain real-time monitoring data for each irrigation unit. The real-time monitoring data includes: the water demand and first pressure of each irrigation unit, the water storage capacity and second pressure of each elevated water tank unit.

[0040] The pipeline control unit is used to perform feedback control based on real-time monitoring data; the feedback control includes adjusting the water storage capacity or the second pressure of the high-level water tank unit.

[0041] In one alternative implementation, the irrigation system based on valley-type irrigation districts further includes: a green power generation module.

[0042] The green power generation module includes: a hydropower station power generation unit, a photovoltaic power generation unit, and a wind power generation unit;

[0043] The hydropower station's power generation unit includes: a water turbine, a generator, a reservoir, a sluice gate, and a third water transmission pipeline;

[0044] The hydropower station's power generation unit is used to generate electricity from the drop in elevation to obtain the first power output.

[0045] The photovoltaic power generation unit is installed on the water surface of the reservoir corresponding to the target hydropower station, and includes: photovoltaic panels, floating supports, electrical equipment and floating system;

[0046] The photovoltaic power generation unit is used to generate photovoltaic power to obtain a second power output;

[0047] The wind power generation unit includes: a wind turbine generator, a wind tower, and a wind measurement system;

[0048] The wind power generation unit is used to generate wind power and obtain a third power output.

[0049] Thirdly, the present invention provides an electronic device, comprising: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to perform the irrigation method based on the first aspect or any corresponding embodiment described above.

[0050] Fourthly, the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to perform the irrigation method based on a valley-type irrigation district as described in the first aspect or any corresponding embodiment thereof.

[0051] Fifthly, the present invention provides a computer program product, including computer instructions for causing a computer to execute the irrigation method based on a valley-type irrigation district as described in the first aspect or any corresponding embodiment thereof.

[0052] The technical solution provided by this invention has the following technical effects:

[0053] The technical solution of this invention, based on the topographical characteristics of valley-type irrigation areas, identifies high-altitude regions and divides the valley-type irrigation area into irrigation units centered on these high-altitude regions, thus optimizing the layout of the irrigation system. This facilitates gravity-flow distribution of irrigation water, reduces the need for pumping stations and other water-lifting facilities, and lowers irrigation costs. Each irrigation unit is controlled by a corresponding pumping unit and elevated water tank unit, ensuring uniform and reliable irrigation water distribution. This guarantees that each irrigation unit receives an appropriate amount of irrigation water. Utilizing the head difference between the elevated water tank unit and the irrigation unit for self-pressurized irrigation reduces energy consumption. Self-pressurized irrigation is a technology that utilizes natural head differences for irrigation, requiring no additional power and saving energy and operating costs. Based on the technical solution of this invention, the terrain advantages can be fully utilized in valley-type irrigation areas to achieve efficient irrigation and water resource management. Attached Figure Description

[0054] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0055] Figure 1 This is a schematic flowchart of an irrigation method based on a valley-type irrigation district according to an embodiment of the present invention.

[0056] Figure 2 This is a schematic diagram of a valley-type irrigation area according to an embodiment of the present invention;

[0057] Figure 3 This is a schematic flowchart of another irrigation method based on a valley-type irrigation district according to an embodiment of the present invention;

[0058] Figure 4 This is a structural block diagram of an irrigation system based on a valley-type irrigation district according to an embodiment of the present invention;

[0059] Figure 5 This is a schematic diagram of an irrigation system in the conventional technology of this invention.

[0060] Figure 6 This is a schematic diagram of an irrigation system according to an embodiment of the present invention;

[0061] Figure 7 This is a schematic diagram showing the distribution of the elevated water tank and irrigation unit according to an embodiment of the present invention;

[0062] Figure 8 This is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention.

[0063] The reference numerals in the attached diagram are as follows: 1. Solar panel cluster on the reservoir surface; 2. Mountain reservoir; 3. Reservoir dam; 4. Hydropower station; 4-1. Hydropower station water intake pipeline; 4-2. Hydropower station water outlet pipeline; 5. Power transmission line from the hydropower station to the pumping station; 6. River valley; 7. Pumping station; 7-1. Pumping station water intake pipeline; 7-2. Pumping station water delivery pipeline; 8. Elevated water tank; 9. Elevated water tank water delivery pipeline; 10. Field main pipe; 11. Field branch pipe; 12. Field drip irrigation tape; 13. Irrigation system corresponding to farmland in the drip irrigation area; 14. Gate hub; 15. Water conveyance channel; 16. Power transmission line from the external power grid to the pumping station. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0065] This invention provides an irrigation method and system based on valley-type irrigation areas to address how to fully utilize the unique topographical advantages of valley-type irrigation areas and construct an efficient, economical, and energy-saving irrigation system, namely a water transmission and distribution network system, according to local conditions.

[0066] This invention provides an embodiment of an irrigation method based on a valley-type irrigation district. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0067] Figure 1 This is a schematic flowchart of an irrigation method based on a valley-type irrigation district according to an embodiment of the present invention.

[0068] like Figure 1 As shown, this embodiment of the invention provides an irrigation method based on a valley-type irrigation district, applied to an irrigation system based on a valley-type irrigation district. The irrigation method based on a valley-type irrigation district includes:

[0069] S101: Determine the target hydropower station based on the location information of the valley-type irrigation area and obtain the first power generation.

[0070] In this embodiment, the target hydropower station is used to provide irrigation water to the valley-type irrigation area and generate electricity from the drop-head power source based on the reservoir corresponding to the target hydropower station. The target hydropower station is an upstream hydropower station related to the valley-type irrigation area. The first power generation is the electricity generated by the drop-head power source, which is applied to the valley-type irrigation area.

[0071] In this embodiment, irrigation water is provided to the valley-type irrigation area by the reservoir and the river flowing into the valley.

[0072] In this embodiment, it is necessary to determine the location information of the valley-type irrigation area, and based on the location information of the valley-type irrigation area, determine the water supply distance S from the valley-type irrigation area. n Less than or equal to the preset distance S maxThe upstream hydropower station is identified as the target hydropower station. Specifically, based on the location information of the valley-type irrigation area, it can be determined whether there are reservoirs or hydropower stations under construction or planned in the surrounding area. Replacing traditional concrete and earthen canals for water conveyance, this method utilizes large or medium-sized hydropower stations to provide water to the downstream area while fully leveraging the superior head of mountain reservoirs for power generation, obtaining the first power generation W. n .

[0073] As an example, precise geographical location information, including longitude and latitude, of a valley-type irrigation area can be obtained using Geographic Information System (GIS) technology or satellite remote sensing technology. A preset distance can be determined based on the total water demand of the valley-type irrigation area and the water supply capacity of the hydropower stations. All hydropower stations within the preset distance will be considered as target hydropower stations. For example, if the total water demand of the valley-type irrigation area is relatively large, and the water supply capacity of surrounding hydropower stations is relatively weak, a larger preset distance can be set. By comparing the water supply distance between the hydropower station and the valley-type irrigation area with the preset distance, hydropower stations within the preset distance are selected as target hydropower stations. This step can be implemented through a programmed algorithm to automatically determine the target hydropower station. Precise geographical location information, including longitude and latitude, of the hydropower station and the valley-type irrigation area can be obtained through GIS. GIS technology can process and analyze spatial data to help determine the actual water supply path distance between the target hydropower station and the valley-type irrigation area. The spatial analysis tools of GIS software can be used to calculate the water supply distance between the hydropower station and the valley-type irrigation area. In addition, GIS technology can be used to conduct terrain analysis, taking into account natural features such as terrain undulations, rivers, and canyons, and assess the impact of terrain on water supply distance.

[0074] In this embodiment, it is considered that the initial power generation may or may not meet the electricity demand of the valley-type irrigation area. To ensure the electricity demand of the valley-type irrigation area while achieving energy conservation and emission reduction, the following measures are taken.

[0075] As an example, the initial power generation (the electricity generated by the drop-rate power generation) can meet the electricity demand of a valley-type irrigation area (the electricity demand of a valley-type irrigation area is W). min In other words, when the actual electricity consumption of the valley-type irrigation area is less than or equal to the first power generation, only the power generated by the drop-rate power generation is applied to the valley-type irrigation area.

[0076] As another example, the initial power generation (the electricity generated by the drop-rate power generation) cannot meet the electricity demand of the valley-type irrigation area (the electricity demand of the valley-type irrigation area is W). minIn other words, when the actual electricity consumption of the valley-type irrigation area exceeds the first power generation, the second and third power generation figures are obtained. A joint dispatch model is determined based on the first, second, and third power generation figures, and power is supplied to the valley-type irrigation area based on the joint dispatch model. The second power generation figure is the electricity generated by wind power generation, and the third power generation figure is the electricity generated by photovoltaic power generation.

[0077] If the electricity generated by the drop-rate power generation is W n Unable to meet the electricity demand of valley-type irrigation areas W min Then, by combining the abundant wind and solar resources in the mountainous areas, wind power generation and photovoltaic power generation can be carried out, and a "water-wind-solar" joint dispatch model can be established.

[0078] The formula corresponding to the "water-wind-solar" joint scheduling model is:

[0079] A=∑(W n1 +W n2 +…W nn )+∑(W m1 +W m2 +…W mm )

[0080] +∑(W i1 +W i2 +…W ii )+W lost A≥W min

[0081] Where A represents the total power generation, W nn W represents the first power generation corresponding to the nth hydropower station power generation unit. mm This represents the second power generation (W) corresponding to the m-th wind power generation unit. ii W represents the third power generation corresponding to the i-th photovoltaic power generation unit. min Indicates the electricity demand of valley-type irrigation areas, W lost This represents the loss value during energy transportation.

[0082] S102: Based on the geomorphological characteristics of the valley-type irrigation area, determine the highland area, and divide the valley-type irrigation area into at least one irrigation unit with the highland area as the center.

[0083] In this embodiment, the highland area is defined as the region where the elevation difference from the surrounding area is greater than a preset value. Geomorphological features include topographical features and geological features. The irrigation unit is irrigated farmland.

[0084] As an example, precise topographic features of valley-type irrigation areas can be obtained using Geographic Information Systems (GIS) and Digital Elevation Models (DEMs). DEM data provides elevation information, helping to identify topographic undulations and slopes. Using GIS software's topographic analysis tools, such as slope and aspect analysis, a preset value can be set. By comparing the elevation data of neighboring areas, areas where the minimum elevation difference from the surrounding areas exceeds the preset value can be identified as highland areas. This can be achieved by creating contour maps and elevation layers, thus visually identifying highland areas. Furthermore, highland areas should have flat terrain, low groundwater levels, and good stability (not prone to landslides or collapses). Specifically, GIS technology and DEM data can be used to analyze slope and elevation variations in highland areas. Topographic flatness can be assessed using the mean and standard deviation of the slope; areas with gentle slopes and minimal variation can be considered flat. Groundwater level monitoring technology can be used to obtain groundwater level data. Commonly used methods include well water level methods, water level gauge methods, and radio methods. These methods allow for real-time monitoring of groundwater level changes, thus determining the groundwater level height. Geological surveys, including surface mapping, drilling, well drilling, and trenching, can be conducted to understand the structural characteristics of landslide bodies, slip zones, and slip beds, particularly the basic properties and physicomechanical characteristics of slip zones. Landslide stability analysis methods, such as the limit equilibrium method and the finite element method, are used to assess slope stability. These methods determine slope stability by calculating a safety factor; a safety factor greater than 1 indicates stability, equal to 1 indicates a limit equilibrium state, and less than 1 indicates instability. Through these technical solutions, the flatness of the terrain, the height of the groundwater level, and the stability of the terrain can be effectively determined.

[0085] In this embodiment, based on the topographic and geological features of the valley-type irrigation area, areas with an elevation difference greater than a preset value from the surrounding areas are defined as highland areas. Using these highland areas as centers, the valley-type irrigation area is divided into different irrigation units X. j (j≥1). As an example, taking highland areas as the center and combining factors such as topography, landforms, water source conditions, soil type, and crop water requirements, the valley-type irrigation area is divided into at least one irrigation unit. Hydrological analysis tools in GIS software, such as watershed division and river network extraction, can be used to assist in the division of irrigation units.

[0086] Irrigation units are components of valley-type irrigation districts, and each valley-type irrigation district operates independently, satisfying the following formula:

[0087] Among them, X j This represents the j-th irrigation unit. This refers to a valley-type irrigation area.

[0088] S103: Determine the water pump lifting unit and elevated water tank unit corresponding to each irrigation unit.

[0089] In this embodiment, each irrigation unit is controlled by a corresponding pumping unit and an elevated water tank unit for water supply. The pumping unit is used to inject irrigation water into the elevated water tank unit. The elevated water tank unit is located in a high-altitude area. The elevated water tank unit is used to store irrigation water. In this embodiment, pipelines (specifically, a second water supply pipeline) are installed between the pumping unit and the elevated water tank unit, and between the elevated water tank unit and the irrigation unit, to transport irrigation water. The high-altitude area is suitable for constructing elevated water tank units; dividing the irrigation units around the high-altitude area reduces pipeline length and costs, while simultaneously achieving self-pressurized irrigation. The pumping unit is a pumping station.

[0090] In this embodiment, each irrigation unit X j Water pump lifting unit Y m (m≥1) and elevated water tank unit Z i (i≥1) control. However, a single water pump pumping unit can supply water to multiple elevated water tank units, and a single elevated water tank unit can also supply water to multiple irrigation units.

[0091] In this embodiment, determining the elevated water tank unit corresponding to each irrigation unit specifically includes: determining the elevated water tank unit based on the topographic features of the high-altitude area. Where the first pressure and the second pressure are different, a pressure-reducing and energy-dissipating unit is set up, and the pressure difference between the first and second pressures is less than or equal to the maximum adjustment range of the pressure-reducing and energy-dissipating unit. The first pressure is the field irrigation pressure of the irrigation unit. The second pressure is the pressure of the irrigation water flowing from the elevated water tank unit upon reaching the irrigation unit.

[0092] In this embodiment, the irrigation water can also be filtered through a sediment cascade treatment unit. The purpose of sediment cascade treatment is to ensure that the sediment content in the first water delivery pipe is less than the maximum sediment content in the irrigation system, and the sediment diameter in the first water delivery pipe is less than the maximum sediment diameter in the irrigation system.

[0093] As an example, a sediment cascade treatment unit typically includes pre-pump filters and post-pump filters. The post-pump filters usually include post-pump screen filters and post-pump disc filters. The mesh size of the pre-pump filters is generally around 80 mesh, while the post-pump filters are typically between 100 and 120 mesh. Water from the lower reaches of the valley is filtered by the pre-pump filters of the sediment cascade treatment unit before entering the pumping unit. After filtration by the post-pump filters, the water is pressurized and distributed by the pumping unit to the elevated water tank unit, where it is stored or discharged into the irrigation units. The amount of water allocated from the elevated water tank unit to each irrigation unit can be determined based on their demand. However, considering losses such as water not flowing into the irrigation units, the allocated water amount will generally be greater than the actual water demand of each irrigation unit. Therefore, when determining the demand of each irrigation unit, the losses can be added directly to the actual water demand.

[0094] Considering that there are usually such Figure 2 The situation shown involves a shared irrigation unit and a shared elevated water tank unit. That is, one irrigation unit c corresponds to two elevated water tank units (elevated water tank units M and N are shared elevated water tank units). Based on the above considerations, the water storage capacity of a single elevated water tank unit is divided into two parts: a first water storage capacity and a second water storage capacity. The first water storage capacity supplies water to the irrigation unit that corresponds to the elevated water tank unit alone, and the second water storage capacity supplies water to the irrigation unit that corresponds to the elevated water tank unit together with other elevated water tank units.

[0095] For a single elevated water tank unit, when there are shared irrigation units, the first water storage capacity of the elevated water tank unit is equal to the sum of the water demands of the individual irrigation units corresponding to that elevated water tank unit, and the water demand of the shared irrigation units is less than or equal to the sum of the second water storage capacities of the shared elevated water tank units. For example... Figure 2 As shown, there exists a shared irrigation unit c, and shared elevated water tank units consisting of elevated water tank unit M and elevated water tank unit N. Elevated water tank unit M includes a first water storage capacity M1 and a second water storage capacity M2, and elevated water tank unit N includes a first water storage capacity N1 and a second water storage capacity N2. The first water storage capacity M1 is equal to the sum of the water requirements of irrigation units a, b, and d. The water requirement of shared irrigation unit c is less than or equal to the sum of the second water storage capacity M2 and the second water storage capacity N2. The first water storage capacity N1 is equal to the sum of the water requirements of irrigation units e and f.

[0096] For a single elevated water tank unit, when there is no shared irrigation unit, the water storage capacity of the single elevated water tank unit is greater than or equal to the sum of the water requirements of the corresponding irrigation units.

[0097] S104: Self-pressurized irrigation based on the head difference between the elevated water tank unit and the irrigation unit.

[0098] In this embodiment, the head difference between the elevated water tank unit and the irrigation unit should satisfy the requirement that the pressure of the irrigation water flowing out of the elevated water tank unit to reach the irrigation unit (second pressure) is greater than or equal to the field irrigation pressure of the irrigation unit (first pressure). The head difference is specifically the dominant head difference. The height difference between the elevated water tank unit and the irrigation unit fully meets the requirements of the field irrigation pressure, corresponding to P2-ΔP=P1, where P2 represents the second pressure, P1 represents the first pressure, and ΔP represents the pressure difference. Pressure reduction and energy dissipation are achieved through a pressure reduction and energy dissipation unit.

[0099] In this embodiment, the elevated water tank unit should be located in a terrain that is flat (the difference between the maximum and minimum elevations within the area is less than a preset elevation), with a low groundwater level (the depth of the groundwater level is less than a preset depth), and good stability (not prone to landslides or collapses). Specifically, the location of the elevated water tank unit can be determined according to the method described above for determining elevated areas. Based on the energy conversion relationship during self-pressurized irrigation according to the head difference between the elevated water tank unit and the irrigation unit: positional potential energy (height difference) is converted into pressure potential energy (which should be greater than the first pressure) through pipeline transportation, achieving self-pressurized irrigation.

[0100] In this embodiment, the water pump lifting unit includes a water pump, a first valve, and a first water delivery pipeline, with the first valve installed at both ends of the first water delivery pipeline. The elevated water tank unit includes an elevated water tank, a second water delivery pipeline, and a second valve, with the second valve installed on the second water delivery pipeline. As an example, the first water delivery pipeline includes a water intake pipeline and a water delivery pipeline for the pumping station, and the second water delivery pipeline includes a water delivery pipeline for the elevated water tank. The target water distribution equipment or devices, such as pipelines (first water delivery pipeline and second water delivery pipeline) and valves (first valve and second valve), can be determined based on cost considerations. The target pressure is determined based on the requirements of the water distribution equipment or devices determined based on cost considerations. Specifically, the target pressure that the pipelines (first water delivery pipeline and second water delivery pipeline) and valves (first valve and second valve) can withstand can be determined based on their requirements. Based on the target pressure, that is, the maximum pressure that the water distribution equipment or devices can withstand based on cost considerations, the maximum elevation of the elevated water tank unit is determined to avoid excessive costs and to prevent damage to the pipelines or valves due to excessive pressure.

[0101] This invention provides another embodiment of an irrigation method based on a valley-type irrigation district. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Also, although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than that shown here.

[0102] Figure 3This is a schematic flowchart of another irrigation method based on a valley-type irrigation district according to an embodiment of the present invention.

[0103] like Figure 3 As shown in the embodiment of the present invention, an irrigation method based on a valley-type irrigation district is provided, which includes:

[0104] S201: Determine the target hydropower station based on the location information of the valley-type irrigation area and obtain the initial power generation. For details, please refer to the relevant description in S101, which will not be repeated here.

[0105] S202: Based on the geomorphological characteristics of the valley-type irrigation area, identify the highland areas, and divide the valley-type irrigation area into at least one irrigation unit with the highland areas as the center. For details, please refer to the relevant description in S102, which will not be repeated here.

[0106] S203: Determine the water pumping unit and elevated water tank unit corresponding to each irrigation unit. For details, please refer to the relevant description in S103, which will not be repeated here.

[0107] S204: Self-pressurized irrigation is carried out based on the head difference between the elevated water tank unit and the irrigation unit. For details, please refer to the relevant description in S104, which will not be repeated here.

[0108] S205: During the self-pressurized irrigation process based on the head difference between the elevated water tank unit and the irrigation unit, real-time monitoring data is acquired, and feedback regulation is performed based on the real-time monitoring data.

[0109] In this embodiment, feedback control includes adjusting the water storage capacity or the second pressure of the elevated water tank unit. Real-time monitoring data includes: the water demand and first pressure of each irrigation unit, and the water storage capacity and second pressure of each elevated water tank unit. Feedback control should satisfy the following formula:

[0110] The technical effects that the technical solution of this invention can achieve are:

[0111] Instead of the traditional method of directly pumping water to the fields, a new era karez irrigation system is adopted, which involves "drop power generation - pumping station - elevated water tank - self-pressurized irrigation". This system achieves the conversion of "potential energy - electrical energy - potential energy", making it more efficient, economical and energy-saving compared to the original water distribution system.

[0112] By making full use of the characteristics of mountain reservoirs, the traditional method of water diversion through canals is changed, and power generation is achieved by utilizing the drop in elevation while providing sufficient water for downstream areas.

[0113] Compared to the original water distribution system, the "new era karez irrigation method" transforms channels into pipelines, greatly reducing problems such as irrigation water evaporation and leakage, repeated channel maintenance, improving water use efficiency, and reducing negative environmental impacts.

[0114] Compared to the original water distribution system, the "new era karez irrigation method" enables real-time monitoring and regulation, ensuring the safe and stable operation of the irrigation system and thus guaranteeing the smooth progress of agricultural production.

[0115] It should be noted that the contents not described in detail in this specification are common knowledge to those skilled in the art.

[0116] This embodiment also provides an irrigation system based on a valley-type irrigation district. This system is used to implement the above embodiments and optional implementation methods, and details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that performs a predetermined function. Although the system described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0117] Figure 4 This is a structural block diagram of an irrigation system based on a valley-type irrigation district according to an embodiment of the present invention.

[0118] This embodiment provides an irrigation system based on a valley-type irrigation district. This irrigation system is applied to the technical solution of the above-mentioned irrigation method based on a valley-type irrigation district, such as... Figure 4 As shown, the irrigation system 10 based on the valley-type irrigation district includes:

[0119] The system comprises a first processing module 11, a second processing module 12, a third processing module 13, a fourth processing module 14, a self-pressurized water distribution module 15, and a power transmission line 16. The self-pressurized water distribution module 15 includes a water pump lifting unit 151 and an elevated water tank unit 152.

[0120] The first processing module 11 is used to determine the target hydropower station based on the location information of the valley-type irrigation area and obtain the first power generation. The target hydropower station is used to provide irrigation water to the valley-type irrigation area and generate electricity through the drop-rate power generation based on the reservoir corresponding to the target hydropower station. The target hydropower station is an upstream hydropower station related to the valley-type irrigation area. The first power generation is the electricity generated by the drop-rate power generation, which is applied to the valley-type irrigation area.

[0121] The second processing module 12 is used to determine highland areas based on the geomorphological characteristics of the valley-type irrigation area, and to divide the valley-type irrigation area into at least one irrigation unit with the highland areas as the center. The highland areas are areas whose elevation difference from the surrounding areas is greater than a preset value.

[0122] The third processing module 13 is used to determine the water pump lifting unit 151 and the elevated water tank unit 152 corresponding to each irrigation unit. Each irrigation unit is controlled by its corresponding water pump lifting unit 151 and elevated water tank unit 152 for water supply. The elevated water tank unit 152 is located in a high-lying area. The water pump lifting unit 151 is used to inject irrigation water into the elevated water tank unit. The elevated water tank unit 152 is used to store irrigation water.

[0123] The fourth processing module 14 is used for self-pressurized irrigation based on the head difference between the elevated water tank unit 152 and the irrigation unit.

[0124] The transmission line 16 is used to transmit the first power generation to the water pumping unit 151 and the elevated water tank unit 152 corresponding to each irrigation unit. The water pumping unit 151 is a pumping station.

[0125] In one optional embodiment, the pumping unit 151 includes a pump, a first valve, and a first water delivery pipeline, with first valves at both ends of the first water delivery pipeline. The first water delivery pipeline includes a pumping station intake pipeline and a pumping station delivery pipeline, and the first valves include an inlet first valve on the pumping station intake pipeline and an outlet first valve on the pumping station delivery pipeline. The inlet first valve controls the water flow rate entering the pump. Starting or stopping the pump can be achieved by closing or opening the inlet first valve. Before starting the pump, ensure the inlet first valve is open so that irrigation water can enter the pump. During pump operation, the inlet first valve can also be used to regulate the water flow rate entering the pump, thereby controlling the pump's operating efficiency. The outlet first valve controls the water flow rate leaving the pump. By adjusting the opening of the outlet first valve, the pump's output flow rate and pressure can be controlled to meet different irrigation needs. Before starting the pump, the outlet first valve is usually kept closed to ensure sufficient water pressure when the pump starts. Once the water pump starts and runs stably, the first outlet valve can be gradually opened to adjust the output flow and pressure. The first outlet valve can also be used to isolate the water pump for maintenance or repair, or to quickly stop the water flow in an emergency.

[0126] The elevated water tank unit 152 includes: an elevated water tank, a second water supply pipeline, and a second valve. The second water supply pipeline is equipped with the second valve. The second water supply pipeline is the elevated water tank water supply pipeline, and the second valve can be installed on the elevated water tank water supply pipeline. The pumping station water supply pipeline, the elevated water tank, and the elevated water tank water supply pipeline are connected in sequence, and the elevated water tank water supply pipeline is connected to the irrigation unit.

[0127] Elevated water tank: Used to store irrigation water pumped up from pump unit 151, serving as an important buffer and regulating unit in the irrigation system. The elevated water tank can balance peak and off-peak water supply differences, ensuring a stable water supply to the irrigation system at different times. The design of the elevated water tank should meet the water demand of the irrigation unit corresponding to the elevated water tank unit 152. The elevated water tank should be built in a relatively high location so that water can be distributed in the pipe network through natural flow. The structure of the elevated water tank must be economical, stable, and durable to withstand water pressure and external environmental pressure.

[0128] The pumping station's water delivery pipeline connects the pumping unit 151 to the elevated water tank, responsible for delivering the irrigation water pumped by the pump to the elevated water tank. The pumping station's water delivery pipeline is equipped with a first outlet valve to control the inflow and outflow of water.

[0129] Elevated water tank water delivery pipeline: Connects the elevated water tank and the irrigation unit, responsible for delivering water stored in the elevated water tank to the fields. The elevated water tank water delivery pipeline is equipped with a second valve for controlling the water flow output and shut-off.

[0130] The first inlet valve: This is typically installed at the inlet of the pumping station's intake pipe. Its main function is to control the flow rate of irrigation water into the elevated water tank and to cut off the water supply when necessary. The first inlet valve can also be used to regulate the water level, protect the pump from backflow, and shut off the water flow during maintenance or emergencies.

[0131] The second valve, specifically installed at the outlet of the elevated water tank's water supply pipeline, is primarily used to control the flow rate of irrigation water from the elevated tank and to cut off the water supply when necessary. The second valve can regulate the distribution of irrigation water, prevent water waste, and shut off the water flow during maintenance or emergencies.

[0132] With the above configuration, the elevated water tank unit 152 can effectively store and regulate irrigation water, while the first valve and the second valve provide the necessary control and safety guarantee for the operation of the system.

[0133] As an example, the valves (e.g., the first valve, the second valve) in this invention can be electric valves.

[0134] In one alternative implementation, such as Figure 4 As shown, the self-pressurized water distribution module 15 in the irrigation system 10 based on the valley-type irrigation area also includes: a sediment cascade treatment unit 153 and a pressure reduction and energy dissipation unit 154.

[0135] The sediment cascade treatment unit 153 includes a pre-pump filter and a post-pump filter, the post-pump filter comprising a post-pump screen filter and a post-pump disc filter. The sediment cascade treatment unit 153 is used for filtering irrigation water.

[0136] The pressure-reducing and energy-dissipating unit 154 includes a pressure-reducing valve, a pipeline power generation device, and a third valve. The pressure-reducing and energy-dissipating unit 154 is installed in an irrigation unit with a first pressure and a second pressure. The first pressure is the field irrigation pressure of the irrigation unit. The second pressure is the pressure of the irrigation water flowing from the elevated water tank unit 152 upon reaching the irrigation unit. As an example, the third valve can also be an electrically operated valve.

[0137] As an example, the specific connection relationship of each unit in the self-pressurized water distribution module 15 can be as follows: the pre-pump filter in the sediment cascade treatment unit 153, the water pump lifting unit 151, the post-pump filter in the sediment cascade treatment unit 153, the elevated water tank unit 152, and the pressure reducing and energy dissipation unit 154. The pressure reducing and energy dissipation unit is connected to the irrigation unit.

[0138] In one alternative implementation, such as Figure 4 As shown, the irrigation system 10 based on the valley-type irrigation area also includes a control and monitoring module 17.

[0139] The control and monitoring module 17 includes: a field monitoring unit 171 and a pipeline control unit 172.

[0140] The field monitoring unit 171 is used to monitor each irrigation unit in real time and obtain real-time monitoring data for each irrigation unit. The real-time monitoring data includes: the water demand and first pressure of each irrigation unit, and the water storage and second pressure of each elevated water tank unit 152. The field monitoring unit 171 consists of data acquisition equipment, data integration equipment, and communication equipment. The data acquisition equipment may include: a field soil moisture sensor, a meteorological sensor, a pH sensor, a pressure sensor, a flow sensor, and a submersible level transmitter (installed in the elevated water tank). Basic data (such as humidity, meteorological data, pH value, pressure, flow rate, and water level) are collected in real time by the data acquisition equipment and sent to the data integration equipment. The data integration equipment processes the data to obtain real-time monitoring data, which includes the basic data and, based on the basic data, the water demand and first pressure of each irrigation unit, and the water storage and second pressure of each elevated water tank unit 152. The real-time monitoring data is then sent to the pipeline control unit 172 via the communication equipment.

[0141] The pipeline control unit 172 is used for feedback control based on real-time monitoring data. Feedback control includes adjusting the water storage capacity or secondary pressure of the elevated water tank unit 152, or the water volume allocated to the irrigation units. Specifically, this is achieved by adjusting the opening degree and opening time of the first, second, and third valves, etc., to adjust the water storage capacity, secondary pressure, or water volume allocated to the irrigation units. The pipeline control unit 172 can analyze and process the real-time monitoring data to determine control strategies, and then implement these strategies to optimize the operation of the irrigation system.

[0142] In one alternative implementation, such as Figure 4 As shown, the irrigation system 10 based on the valley-type irrigation area also includes a green power generation module 18.

[0143] The green power generation module 18 includes: a hydropower station power generation unit 181, a photovoltaic power generation unit 182, and a wind power generation unit 183.

[0144] The hydropower station power generation unit 181 includes: a water turbine, a generator, a reservoir, a sluice gate, and a third water transmission pipeline. The third water transmission pipeline includes: the hydropower station's water intake pipeline and the hydropower station's water outlet pipeline.

[0145] Hydropower station power generation unit 181 is used for drop-head power generation to obtain the first power output. It converts the advantageous water head of the mountain reservoir into green and clean electricity.

[0146] The photovoltaic power generation unit 182 is installed on the water surface of the reservoir corresponding to the target hydropower station, and includes: photovoltaic panels, floating supports, electrical equipment and floating system.

[0147] Photovoltaic power generation unit 182 is used for photovoltaic power generation to obtain a second source of electricity. By utilizing the surface space of the water body, it makes full use of solar energy resources, while also reducing water evaporation and improving the water quality of the reservoir.

[0148] The wind power generation unit 183 includes: a wind turbine, a wind tower, and a wind measurement system.

[0149] Wind power generation unit 183 is used to generate wind power, thus producing a third type of electricity. By making full use of the mountainous terrain features, wind energy resources in mountainous areas can be effectively captured and utilized.

[0150] In one alternative implementation, such as Figure 4 As shown, the control and monitoring module 17 in the irrigation system 10 based on the valley-type irrigation area also includes a power generation control unit 173.

[0151] The power generation control unit 173 is used to monitor in real time the first power generation and various parameters of the hydropower station power generation unit 181, the second power generation and various parameters of the photovoltaic power generation unit 182, and the third power generation and various parameters of the wind power generation unit 183. These parameters include voltage, current, and frequency. Based on the joint dispatch model, the unit adjusts the operating status of each power generation unit according to the first power generation and various parameters of the hydropower station power generation unit 181, the second power generation and various parameters of the photovoltaic power generation unit 182, and the third power generation and various parameters of the wind power generation unit 183. Based on the hydropower station power generation unit 181, photovoltaic power generation unit 182, and wind power generation unit 183, the unit monitors their various parameters in real time and adjusts the operating status of the green power generation modules according to the joint dispatch model to ensure their safe and stable operation within the specified range.

[0152] In this embodiment, the green power generation module 18 changes the traditional external power supply, adopting a comprehensive regulation method of hydropower, photovoltaic power, and wind power to provide the energy required for the irrigation system. The self-pressurized water distribution module 15, based on the existing irrigation area, transforms channels into pipelines, developing a "new era karez" irrigation system of "drop power generation - pumping station - elevated water tank - self-pressurized irrigation," realizing a green conversion from "potential energy - electrical energy - potential energy," thereby improving energy utilization efficiency and water utilization efficiency. The control and monitoring module, based on the green power generation module and the self-pressurized water distribution module, realizes the overall monitoring and regulation functions of the system, thereby ensuring stable and safe production.

[0153] As an example, taking drip-irrigated farmland as an example, such as Figure 5 , 6 As shown, if the existing water conveyance channel 15 is an earthen canal, its service life and leakage will lead to frequent repairs. If the water conveyance channel 15 is a concrete canal, its construction cost will be too high. Considering the natural elevation difference of the mountain reservoir, the model of "hydropower station water intake pipeline 4-1, power station 4, hydropower station outlet pipeline 4-2" can develop a large amount of green electricity to meet the electricity demand of the irrigation area, while avoiding a large amount of evaporation and leakage in the water conveyance channel 15.

[0154] Furthermore, the power station 4 provides power to the pumping station 7 through the transmission line 5, avoiding the need for an external circuit 16 to provide power. In addition, the solar panel cluster 1 arranged on the reservoir surface aims to achieve green agriculture.

[0155] Furthermore, instead of directly pressurizing and supplying water to the drip irrigation farmland 13 through the pumping station 7 via the pumping station water pipeline 7-2, a high-level water tank 8 is used to supply water to the drip irrigation farmland 13 through the high-level water tank water pipeline 9, making full use of the elevation difference between the high-level water tank 8 and the irrigation farmland 13.

[0156] Furthermore, if the elevation difference between the elevated water tank 8 and the irrigated farmland 13 is much greater than the required elevation difference, a pipeline power generation and energy dissipation device will be installed to achieve energy dissipation and precision irrigation.

[0157] As another example, such as Figure 7 As shown, farmland 13 in the irrigation area is located on the river valley, forming a distribution pattern of "water in the river valley, fields on the river valley". The relative positions of the mountain reservoir 2 and the high-level water pool 8 are shown in the figure.

[0158] Furthermore, the elevation and number of elevated water tanks 8 are determined by the location and elevation of the irrigated farmland 13 to ensure that all irrigated farmland 13 is within the irrigation range of the elevated water tanks 8.

[0159] Further functional descriptions of the above modules and units are the same as those in the corresponding embodiments described above, and will not be repeated here.

[0160] In this embodiment, the irrigation system based on the valley-type irrigation district is presented in the form of functional units. Here, a unit refers to an application-specific integrated circuit (ASIC) circuit, a processor and memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0161] This invention also provides an electronic device having the above-described features. Figure 4 The irrigation system shown is based on a valley-type irrigation district.

[0162] Please see Figure 8 , Figure 8 This is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention, such as... Figure 8 As shown, the electronic device includes one or more processors 10, memory 20, and interfaces for connecting the components, including high-speed interfaces and low-speed interfaces. The components communicate with each other via different buses and can be mounted on a common motherboard or otherwise installed as needed. The processors can process instructions executed within the electronic device, including instructions stored in or on memory to display graphical information of a GUI on external input / output devices (such as display devices coupled to the interfaces). In an alternative implementation, multiple processors and / or multiple buses can be used with multiple memories and multiple memory modules, if desired. Similarly, multiple electronic devices can be connected, each providing some of the necessary operations (e.g., as a server array, a group of blade servers, or a multiprocessor system). Figure 8 Take a processor 10 as an example.

[0163] Processor 10 may be a central processing unit, a network processor, or a combination thereof. Processor 10 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The programmable logic device may be a complex programmable logic device (CAMP), a field-programmable gate array (FPGA), a general-purpose array logic (GDA), or any combination thereof.

[0164] The memory 20 stores instructions executable by at least one processor 10 to cause at least one processor 10 to perform the method shown in the above embodiments.

[0165] The memory 20 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function. The data storage area may store data created based on the use of the electronic device. Furthermore, the memory 20 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In an alternative embodiment, the memory 20 may optionally include memory remotely located relative to the processor 10, and these remote memories may be connected to the electronic device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0166] Memory 20 may include volatile memory, such as random access memory. Memory may also include non-volatile memory, such as flash memory, hard disk, or solid-state drive. Memory 20 may also include combinations of the above types of memory.

[0167] The electronic device also includes a communication interface 30 for communicating with other devices or communication networks.

[0168] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded over a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc. Further, the storage medium may also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods shown in the above embodiments.

[0169] A portion of this invention can be applied as a computer program product, such as computer program instructions, which, when executed by a computer, can invoke or provide the methods and / or technical solutions according to the invention through the operation of the computer. Those skilled in the art will understand that the forms in which computer program instructions exist in a computer-readable medium include, but are not limited to, source files, executable files, installation package files, etc. Correspondingly, the ways in which computer program instructions are executed by a computer include, but are not limited to: the computer directly executing the instructions, or the computer compiling the instructions and then executing the corresponding compiled program, or the computer reading and executing the instructions, or the computer reading and installing the instructions and then executing the corresponding installed program. Here, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible to a computer.

[0170] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A method for irrigation based on a valley type irrigation area, characterized in that, The method comprises: According to the location information of the valley type irrigation area, a target hydropower station is determined, and a first power generation amount is obtained; the target hydropower station is used to provide irrigation water and generate power based on the drop of the reservoir corresponding to the target hydropower station for the valley type irrigation area, the target hydropower station is an upstream hydropower station related to the valley type irrigation area, and the first power generation amount is an amount of power generated by drop power generation and is applied to the valley type irrigation area; Based on the topographic features of the valley type irrigation area, a high area is determined, and the valley type irrigation area is divided into at least one irrigation unit with the high area as the center; the high area is an area with a height difference greater than a preset value from the surrounding area; A water pump and water lifting unit and a high-level water tank unit corresponding to each irrigation unit are determined; Each irrigation unit is controlled to supply water by the corresponding water pump and water lifting unit and high-level water tank unit; the water pump and water lifting unit is used to inject irrigation water into the high-level water tank unit; the high-level water tank unit is located in the high area; and the high-level water tank unit is used to store irrigation water; Self-pressure irrigation is performed according to the water head difference between the high-level water tank unit and the irrigation unit; The determination of the high-level water tank unit corresponding to each irrigation unit comprises: The high-level water tank unit is determined according to the topographic features of the high area; when the first pressure and the second pressure are different, a pressure reduction and energy dissipation unit is arranged, the pressure difference between the first pressure and the second pressure is less than or equal to the maximum adjustment range of the pressure reduction and energy dissipation unit; the first pressure is the field irrigation pressure of the irrigation unit; the second pressure is the pressure of the irrigation water flowing out of the high-level water tank unit to the irrigation unit; and the pressure reduction and energy dissipation unit comprises a pressure reduction valve, a pipeline power generation device and a third valve.

2. The method of claim 1, characterized in that, The determination of the target hydropower station according to the location information of the valley type irrigation area comprises: According to the location information of the valley type irrigation area, an upstream hydropower station with a water supply distance less than or equal to a preset distance from the valley type irrigation area is determined as the target hydropower station.

3. The method of claim 2, wherein, The method further comprises: Real-time monitoring data is obtained; the real-time monitoring data includes the water demand and the first pressure of each irrigation unit, and the water storage capacity and the second pressure of each high-level water tank unit; Feedback control is performed according to the real-time monitoring data; the feedback control includes adjusting the water storage capacity or the second pressure of the high-level water tank unit.

4. The method of claim 1, wherein, When the actual power consumption of the valley type irrigation area is greater than the first power generation amount, the method further comprises: A second power generation amount and a third power generation amount are obtained; the second power generation amount is an amount of power generated by wind power generation, and the third power generation amount is an amount of power generated by photovoltaic power generation; A joint scheduling model is determined according to the first power generation amount, the second power generation amount and the third power generation amount, and power is supplied to the valley type irrigation area based on the joint scheduling model.

5. An irrigation system based on a valley type irrigation area, characterized in that, The system is applied to the irrigation method based on the valley type irrigation area according to any one of claims 1 to 4, and the system comprises: A first processing module, a second processing module, a third processing module, a fourth processing module, a self-pressure water supply module and a power transmission line; the self-pressure water supply module comprises a water pump and water lifting unit and a high-level water tank unit; The first processing module is configured to determine a target hydropower station according to position information of the valley-type irrigation area and obtain a first power generation amount; the target hydropower station is configured to provide irrigation water for the valley-type irrigation area and generate power based on a corresponding reservoir of the target hydropower station; the target hydropower station is an upstream hydropower station related to the valley-type irrigation area; and the first power generation amount is an amount of power generated by the fall power generation and is applied to the valley-type irrigation area. The second processing module is configured to determine a high region based on a geomorphic feature of the valley-type irrigation area, and divide the valley-type irrigation area into at least one irrigation unit with the high region as a center; the high region is a region with a difference in elevation from a surrounding region greater than a preset value. The third processing module is configured to determine a water pump and water lifting unit and a high-level water tank unit corresponding to each irrigation unit; each irrigation unit is controlled to supply water by the corresponding water pump and water lifting unit and high-level water tank unit; and the high-level water tank unit is located in the high region. The water pump and water lifting unit is configured to inject irrigation water into the high-level water tank unit. The high-level water tank unit is configured to store irrigation water. The fourth processing module is configured to perform self-pressure irrigation according to a water head difference between the high-level water tank unit and the irrigation unit. The power transmission line is configured to transmit the first power generation amount to the water pump and water lifting unit and the high-level water tank unit corresponding to each irrigation unit.

6. The system of claim 5, wherein, The water pump and water lifting unit includes a water pump, a first valve, and a first water pipeline, and the two ends of the first water pipeline are provided with the first valve. The high-level water tank unit includes a high-level water tank, a second water pipeline, and a second valve, and the second water pipeline is provided with the second valve.

7. The system of claim 6, wherein, The self-pressure water supply and distribution module further includes a sediment cascade processing unit and a pressure reduction and energy dissipation unit. The sediment cascade processing unit includes a pre-pump filter, a post-pump screen filter, and a post-pump laminated filter; and the sediment cascade processing unit is configured to filter and process the irrigation water. The pressure reduction and energy dissipation unit includes a pressure reduction valve, a pipeline power generation device, and a third valve; the pressure reduction and energy dissipation unit is arranged in an irrigation unit with different first and second pressures; the first pressure is a field irrigation pressure of the irrigation unit; and the second pressure is a pressure of irrigation water flowing out of the high-level water tank unit to the irrigation unit.

8. The system of claim 7, wherein, The system further includes a control and monitoring module. The control and monitoring module includes a field monitoring unit and a pipe network regulation and control unit. The field monitoring unit is configured to monitor each irrigation unit in real time to obtain real-time monitoring data of each irrigation unit; the real-time monitoring data includes a water requirement and a first pressure of each irrigation unit, and a water storage amount and a second pressure of each high-level water tank unit. The pipe network regulation and control unit is configured to perform feedback regulation according to the real-time monitoring data; the feedback regulation includes adjusting the water storage amount or the second pressure of the high-level water tank unit.

9. The system of claim 8, wherein, The system further includes a green power generation module. The green power generation module includes a hydropower station power generation unit, a photovoltaic power generation unit, and a wind power generation unit. The hydropower station power generation unit includes a water turbine, a generator, a reservoir, a water gate, and a third water pipeline. The hydropower station power generation unit is configured to generate power by fall to obtain the first power generation amount. The photovoltaic power generation unit is arranged on the water surface of a reservoir corresponding to a target hydropower station, and comprises a photovoltaic cell panel, a floating support, electrical equipment and a floating system. The photovoltaic power generation unit is used for photovoltaic power generation to obtain a second power generation amount. The wind power generation unit comprises a wind turbine, a wind tower and a wind measurement system. The wind power generation unit is used for wind power generation to obtain a third power generation amount.

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