Well and canal double-irrigation and rotational irrigation wind-solar complementary intelligent water-saving and salt-controlling irrigation device and method for arid and semi-arid areas

Abstract

The invention discloses an arid and semi-arid region well and canal double-irrigation rotation irrigation wind-solar complementary intelligent water-saving salt-control irrigation device and method. The device comprises a sensor monitoring module used for acquiring environment data and water level information of well water and canal water in real time; the energy supply module comprises a solar assembly and a wind power generation assembly, the solar assembly is used for converting solar energy into electric energy, the wind power generation assembly is used for converting wind energy into electric energy, and the energy supply control module is connected with the sensor monitoring module and the energy supply module. The calculation module is used for calculating irrigation water quantity according to the environment data and the water level information; and the irrigation module is connected with the control module and is used for controlling the output water quantity according to the calculated irrigation water quantity. Water resource shortage in arid and semi-arid areas can be relieved, and water resource waste in the irrigation process is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural water-saving irrigation, and in particular to an intelligent water-saving and salt-control irrigation device and method for well-channel dual irrigation, rotation irrigation and wind-solar complementary irrigation in arid and semi-arid areas. Background Art

[0002] Wind power generation and solar power generation, as technologies that meet environmental protection and low-carbon requirements, have gradually attracted widespread attention at home and abroad, especially in wind-solar hybrid power generation. However, the current research on wind-solar hybrid power generation is still in its infancy, mainly focusing on the hardware design of independent wind-solar hybrid power generation systems, power coordination of various parts, system capacity matching, and intelligent control of equipment.

[0003] Although the existing wind-solar hybrid irrigation devices have advantages in energy saving and green energy utilization, in the arid and semi-arid areas represented by the Ningmeng Hetao Irrigation Area, the unique "spring collection, summer irrigation, autumn irrigation" irrigation mode, the existing equipment has obvious technical limitations. The "spring collection, summer irrigation, autumn irrigation" mode in arid and semi-arid areas requires precise control of soil salt discharge and irrigation time, configuration of surface water and groundwater sources, and optimization of the well-channel combination ratio to achieve multiple goals of high efficiency, low energy consumption, water saving, and salt control.

[0004] However, the existing wind-solar complementary irrigation equipment only considers the hardware configuration, and fails to combine the actual characteristics of arid and semi-arid areas to design and optimize the water-lifting equipment from aspects such as water source configuration, irrigation method configuration, and water-salt dynamics during the growth period. At the same time, the equipment has high costs, low power generation efficiency, long system maintenance, and lacks sufficient accuracy in water resource scheduling and soil salinity control, making it difficult to meet the region's special needs for water-saving and efficient irrigation. In addition, traditional equipment cannot dynamically adjust the irrigation method according to the planting structure and water demand conditions during the crop growth period, especially in the switching between well-channel dual irrigation and rotation irrigation, lacking adaptability and intelligence. Summary of the invention

[0005] The embodiments of the present application provide an intelligent water-saving and salt-control irrigation device and method for well-channel dual irrigation and rotation irrigation with wind-solar complementarity in arid and semi-arid areas, which can alleviate the shortage of water resources in arid and semi-arid areas and avoid the waste of water resources during irrigation.

[0006] The present application provides an intelligent water-saving and salt-control irrigation device for well-channel dual irrigation and wheel irrigation in arid and semi-arid areas with wind-solar complementary irrigation, including: Sensor monitoring module, used to obtain real-time environmental data and water level information of well water and canal water; An energy supply module, comprising a solar energy component and a wind power generation component, wherein the solar energy component is used to convert solar energy into electrical energy, and the wind power generation component is used to convert wind energy into electrical energy to power the device; A control module, connected to the sensor monitoring module and the energy supply module respectively, and used to calculate the irrigation water volume according to the environmental data and water level information; The irrigation module is connected to the control module and is used to control the output water volume according to the calculated irrigation water volume.

[0007] Furthermore, in the above-mentioned intelligent water-saving and salt-control irrigation device for well-channel dual irrigation and wheel irrigation in arid and semi-arid areas, the sensor monitoring module includes a humidity sensor, a temperature sensor and a salt sensor; The environmental data includes soil moisture data, temperature data and soil salinity data, and the water level information includes precipitation, groundwater level and channel water level data.

[0008] Furthermore, in the above-mentioned arid and semi-arid area well-channel dual irrigation wheel irrigation wind-solar complementary intelligent water-saving and salt-control irrigation device, the control module includes a controller, the irrigation module includes a relay and a water pump, the relay is connected to the controller, and the controller controls the water pump flow through the relay.

[0009] Furthermore, in the above-mentioned intelligent water-saving and salt-control irrigation device for well-channel dual irrigation and wheel irrigation in arid and semi-arid areas, the solar energy component comprises a photovoltaic panel, and the photovoltaic panel is fixed by a photovoltaic bracket; The wind power generation component comprises a wind turbine, a vertical pole and a wind blade. The wind turbine is connected to the vertical pole and the wind blade respectively. The wind turbine comprises a wind turbine controller. The wind turbine controller is used to adjust the operating state of the wind turbine.

[0010] The embodiment of the present application also provides an intelligent water-saving and salt-control irrigation method for well-channel dual irrigation and wheel irrigation in arid and semi-arid areas with wind-solar complementary irrigation, including: Obtain environmental data and water level information of well water and canal water; Obtain environmental data and water level information of well water and canal water; determining an irrigation water amount based on the environmental data and the water level information; determining an irrigation plan based on the irrigation water amount; Design and adjust the wind-solar complementarity ratio based on irrigation scheme.

[0011] Furthermore, in the above-mentioned intelligent water-saving and salt-control irrigation method for well-channel dual irrigation and rotation irrigation in arid and semi-arid areas, the method of determining the irrigation water volume based on the environmental data and the water level information includes: The design flow and power requirements are calculated using the following formula:

[0012]

[0013] Among them, Q is the design flow, m is the maximum irrigation quota for a single crop irrigation, A is the irrigation area, is the irrigation efficiency, P is the pump power, g is the gravitational acceleration, is the total efficiency of the device, E is the total electrical energy, and T is the power generation time.

[0014] Furthermore, in the above-mentioned intelligent water-saving and salt-control irrigation method for well-channel dual irrigation and rotation irrigation in arid and semi-arid areas, the method of determining the irrigation water volume based on the environmental data and the water level information includes: Preprocessing the environmental data and the water level information; The preprocessed environmental data and water level information were input into the trained random forest model to obtain the predicted irrigation water volume.

[0015] Furthermore, in the above-mentioned intelligent water-saving and salt-control irrigation method for well-channel dual irrigation and rotation irrigation in arid and semi-arid areas, the random forest model adopts an integration of several decision trees.

[0016] Furthermore, in the above-mentioned intelligent water-saving and salt-control irrigation method for well-channel dual irrigation and rotation irrigation in arid and semi-arid areas, the decision process of the decision tree includes: When the root water storage is less than the minimum water storage and the rainfall is less than the preset rainfall threshold, the irrigation water volume is predicted by the random forest model; When the root water storage is less than the minimum water storage and the rainfall is greater than the preset rainfall threshold, no irrigation is required; When the maximum water storage capacity > root water storage capacity > minimum water storage capacity, no irrigation is required; When the root water storage capacity > maximum water storage capacity, drainage occurs through the soil.

[0017] An embodiment of the present application also provides a computer-readable storage medium, in which a plurality of instructions are stored, and the instructions are suitable for being loaded by a processor to execute any of the above-mentioned intelligent water-saving and salt-control irrigation methods for well-channel dual irrigation and wheel irrigation and wind-solar complementary irrigation in arid and semi-arid areas.

[0018] The application provides an intelligent water-saving and salt-control irrigation device and method for wind-solar hybrid dual irrigation and rotation irrigation in arid and semi-arid areas. An energy supply module and a control module are set in the intelligent water-saving and salt-control irrigation device for wind-solar hybrid dual irrigation and rotation irrigation in arid and semi-arid areas. The irrigation water volume is determined by the energy supply module function and the control module. The intelligent water-saving and salt-control irrigation method for wind-solar hybrid dual irrigation and rotation irrigation in arid and semi-arid areas determines the irrigation water volume based on environmental data and water level information, which can improve the accuracy and intelligence level of irrigation. The application can (1) alleviate the water shortage in arid and semi-arid areas and avoid water waste in the irrigation process; (2) reduce the energy consumption of the irrigation system and realize efficient wind-solar hybrid energy-saving irrigation; (3) effectively control the accumulation of soil salt and prevent the harm of soil salinization to crops; (4) can dynamically adjust the irrigation plan according to the water demand of crops and climatic conditions, and improve the accuracy and intelligence level of irrigation; (5) optimize the water volume ratio of well irrigation and canal irrigation, optimize the ratio of solar energy and wind energy, and realize the maximum utilization of water and electric energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the structure of the intelligent water-saving and salt-control irrigation device for arid and semi-arid areas with double irrigation and wheel irrigation and wind-solar complementary irrigation provided in an embodiment of the present application.

[0021] Figure 2 A schematic diagram of the structure of the energy supply module provided in an embodiment of the present application.

[0022] Figure 3 This is a flow chart of the intelligent water-saving and salt-control irrigation method for well-channel dual irrigation and rotation irrigation in arid and semi-arid areas using wind-solar complementary irrigation methods provided in an embodiment of the present application.

[0023] Figure 4 A decision flow chart of a decision tree provided in an embodiment of the present application.

[0024] Figure 5 This is an irrigation system diagram for corn provided in an embodiment of the present application.

[0025] Figure 6 A diagram showing the dynamic changes in soil salinity at different depths provided in an embodiment of the present application.

[0026] Figure 7 A diagram showing the dynamic changes in soil moisture at different depths provided in an embodiment of the present application.

[0027] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0029] The present application provides a device and method for intelligent water-saving and salt-control irrigation with dual irrigation of wells and canals in arid and semi-arid areas and wind-solar complementary irrigation. Figure 1 , Figure 1 The schematic diagram of the structure of the arid and semi-arid area well-channel dual irrigation wheel irrigation wind-solar complementary intelligent water-saving and salt-control irrigation device provided in the embodiment of the present application is as follows: Figure 1 As shown in the figure, the arid and semi-arid area well-channel dual irrigation wheel irrigation wind-solar complementary intelligent water-saving and salt-control irrigation device includes: The sensor monitoring module is used to obtain the environmental data and water level information of well water and canal water in real time.

[0030] The sensor monitoring module includes humidity sensor, temperature sensor and salinity sensor. Environmental data includes soil humidity data, temperature data and soil salinity data, and water level information includes precipitation, groundwater level and channel water level data.

[0031] The sensor monitoring module is used to collect water level and flow data of well water and canal water in real time, so as to intelligently adjust the irrigation method and irrigation flow. In addition, the sensor monitoring module also includes water and salt monitoring equipment arranged next to the crops in the field. The equipment includes soil moisture sensors, temperature sensors and salinity sensors, which can monitor the soil moisture, temperature and salt concentration at different soil depths in real time. The collected data is transmitted to the control module, which automatically optimizes the irrigation plan and controls the amount and frequency of irrigation water by comprehensively analyzing the data to avoid soil salt accumulation, optimize water and salt balance, and improve crop growth conditions and irrigation efficiency.

[0032] Humidity sensor is used for soil moisture monitoring: Humidity sensor detects soil moisture and evaluates whether water is needed. When the humidity is lower than the set value, it sends a signal. When the control module receives the signal, it controls the irrigation module to start irrigation to ensure that the crops get enough water.

[0033] Temperature sensors are used for air temperature monitoring: The temperature sensor obtains temperature data in real time, and the control module calculates the transpiration of crops based on the temperature data. When the temperature rises and the transpiration increases, the control module will control the increase in irrigation to ensure that the water demand of crops is met.

[0034] Salinity sensor is used for soil salinity monitoring: the salinity sensor measures the salt concentration in the soil in real time, sends a signal when the salt reaches the set value, and when the control module receives the signal, it controls the irrigation module to perform salt leaching to avoid soil salt accumulation and achieve water-salt balance.

[0035] Rainfall monitoring: Real-time monitoring of precipitation through rainfall sensors or rain gauges, calculation of effective precipitation through the control module, and reduction or suspension of irrigation according to precipitation conditions to prevent water waste.

[0036] The energy supply module includes a solar panel and a wind power generation panel. The solar panel is used to convert solar energy into electrical energy, and the wind power generation panel is used to convert wind energy into electrical energy to provide energy for the wind-solar complementary irrigation device.

[0037] The solar energy components include photovoltaic panels mounted on photovoltaic brackets. The photovoltaic panels are fixed by the photovoltaic brackets. The tilt angle of the photovoltaic panels has been optimized and calculated in advance to ensure maximum solar energy capture. The bracket structure is stable and can cope with various severe weather conditions.

[0038] In a specific embodiment, the photovoltaic support is composed of a plurality of vertical columns, a beam and a photovoltaic panel support. The support of each group of photovoltaic panels is supported by four vertical columns, with a column spacing of 2100 mm and an overall length of 7100 mm, to ensure uniform force distribution between photovoltaic modules. Each vertical column is fixed with a concrete foundation to enhance the wind resistance and stability of the overall system. The column foundation width is 1000 mm and the depth is 400 mm to ensure the stability and seismic performance of the installation. The photovoltaic panel support has an inclination angle of 30° and a total length of 2270 mm. It is precisely designed according to the local solar radiation angle to maximize the capture of light energy. The height of the photovoltaic panel from the ground to the top fulcrum is 1250 mm, ensuring that the photovoltaic modules can receive sufficient sunlight at different times.

[0039] During the installation process, the various components of the photovoltaic bracket are connected with bolts to ensure its stability and facilitate subsequent maintenance operations. The bracket base is fixed by embedded concrete columns, and the installation is stable to ensure that it can withstand harsh environmental conditions such as wind and rain, and is suitable for the characteristics of wind and solar resources in Inner Mongolia.

[0040] Wind power generation components include wind turbines, poles and blades, and the wind turbines are connected to the poles and blades respectively. The wind turbines are installed next to the solar panels to capture wind resources and further improve the stability of energy supply. The wind turbines are equipped with wind turbine controllers that can adjust the operating status of the wind turbines, monitor wind speed and power generation to ensure the effective use of wind energy.

[0041] Furthermore, based on the local meteorological data collected by sensors (including sunshine duration and wind frequency), the ratio of solar energy to wind energy is allocated to ensure the efficiency and reliability of power supply. The configuration ratio of solar energy to wind energy determines the number of photovoltaic panels and the power specifications of wind turbines.

[0042] In one embodiment, the wind-solar complementary irrigation device also includes an integrated inverter control machine, which adjusts the input and output power of wind energy and solar energy to optimize energy utilization efficiency, and combines with the battery management module to adjust the charging and discharging process of the battery to ensure that the system can still provide stable power supply under extreme conditions such as no light and no wind, thereby ensuring the continuous progress of irrigation operations.

[0043] Figure 2 A schematic diagram of the structure of the energy supply module provided in the embodiment of the present application is shown in FIG. Figure 2 As shown, the motor captures wind energy and converts it into electrical energy to provide partial power support for the entire device. The wind turbine is connected to the wind turbine controller through the wind turbine input to the controller. The wind turbine controller is used to adjust the output power of the wind turbine generator to ensure the stability of the power generation process. The wind turbine controller is connected to the battery pack to store the electricity generated by wind power generation in the battery to ensure that the device still has the ability to supply electricity when the wind speed is unstable. The battery is connected to the inverter control machine through a connecting line. The inverter control machine converts the direct current from the battery into alternating current and provides it to the load, thereby ensuring the stable operation of the entire system. The photovoltaic module consists of 6 750W solar panels, which are installed through a special bracket. The photovoltaic module converts solar energy into direct current, which is transmitted to the inverter control machine through the connecting line with the inverter control machine, and then rectified and converted by the inverter control machine to provide the main power for the system. The wind-solar hybrid system works together through wind power generation and photovoltaic power generation. The inverter control machine adjusts the output power to ensure a stable supply of electricity. The entire system can intelligently switch different power sources according to the actual wind speed and light conditions to achieve continuous, stable and efficient irrigation water supply.

[0044] The control module is connected to the sensor monitoring module and the energy supply module respectively, and is used to calculate the irrigation water volume according to the environmental data and water level information.

[0045] The control module includes a controller, the irrigation module includes a relay and a water pump, the relay is connected to the controller, and the controller controls the flow of the water pump through the relay.

[0046] The control center combines environmental data such as temperature, humidity, and rainfall to predict water demand in real time. According to the water supply situation, the system intelligently switches the well-channel rotation irrigation mode. The system dynamically adjusts the irrigation plan according to water level changes and weather forecasts, optimizes water resource utilization, and ensures the healthy growth of crops.

[0047] The irrigation module includes a relay and a water pump. The controller and the relay module are connected to the water pump. The water pump is connected to the irrigation water pipe system through a pipeline and is used to draw water from the well water.

[0048] Drip irrigation is selected as the irrigation method. In drip irrigation mode, the dripper flow rate is adjustable. Setting the dripper flow rate and irrigation time according to the irrigation water volume can accurately control the water output, reduce water evaporation loss, significantly improve the efficiency of water resource utilization, and effectively prevent salt accumulation on the soil surface, ensuring that water is evenly delivered to the crop root zone, improving the uniformity of irrigation and the stability of the crop growth environment.

[0049] This application also provides an intelligent water-saving and salt-control irrigation method for well-channel dual irrigation and rotation irrigation in arid and semi-arid areas, such as Figure 3 As shown, Figure 3 A flow chart of an intelligent water-saving and salt-control irrigation method for well-canal dual irrigation and rotation irrigation in arid and semi-arid areas with wind-solar complementary irrigation is provided in an embodiment of the present application, which is applied in a control module: S1, obtaining environmental data and water level information of well water and canal water.

[0050] S2, determining the irrigation water amount based on environmental data and water level information.

[0051] In one embodiment, step S2 includes: The design flow and power requirements are calculated using the following formula:

[0052]

[0053]

[0054] Among them, Q is the design flow rate of the water pump, m is the maximum irrigation quota for a single irrigation of the crop, and A is the irrigation area. is the irrigation efficiency, P is the pump power, g is the gravitational acceleration, is the total efficiency of the device, E is the total electrical energy, and T is the power generation time.

[0055] In one embodiment, step S2 includes: S21, pre-processing the environmental data and water level information.

[0056] In a specific embodiment, the environmental data and water level information are derived from a soil moisture sensor, a meteorological sensor, a soil salinity sensor, and a groundwater level sensor.

[0057] Preprocessing of environmental data and water level information includes: Data cleaning: Perform quality checks and cleansing on environmental data and water level information obtained from sensors, delete outliers and missing values, and ensure data accuracy and consistency.

[0058] Data standardization: To improve the prediction accuracy of the model, all input data must be standardized before entering the machine learning model, including unit unification and numerical range normalization to eliminate the impact of dimensional differences. For example, a total of 22 sensor points are set up in the farmland, that is, 22 soil data are collected each time, and the average value is taken to evaluate the soil state and used as a basis for prediction.

[0059] Time series integration: Integrate information such as soil moisture, temperature, and rainfall at different time periods into time series data so that the model can identify changing trends in crop water demand.

[0060] S22, the preprocessed environmental data and water level information are input into the trained random forest model to obtain the predicted irrigation water volume.

[0061] The random forest model automatically updates the current sunshine and wind speed data at regular intervals (6 hours) and recalculates the proportion of wind-solar complementary energy. The random forest model is called based on the rainfall (Rainfall), soil moisture (soilmoisture), temperature (temperature), soil salinity (soil salinity), wind speed (wind velocity), and sunshine intensity (Sunshine intensity) in the past 5 days to determine the power generation potential in the next few hours and adjust the ratio between photovoltaic and wind power generation to maximize energy efficiency.

[0062] In one embodiment, the random forest model uses an ensemble of several decision trees. Figure 4 A decision flow chart of a decision tree provided in an embodiment of the present application, such as Figure 4 As shown in Figure 2, the decision process of the decision tree includes: When the root water storage is less than the minimum water storage and the rainfall is less than the preset rainfall threshold, the irrigation water volume is predicted by the random forest model; When the root water storage is less than the minimum water storage and the rainfall is greater than the preset rainfall threshold, no irrigation is required; When the maximum water storage capacity > root water storage capacity > minimum water storage capacity, no irrigation is required; When the root water storage capacity > maximum water storage capacity, drainage occurs through the soil.

[0063] The random forest model uses multiple decision trees for prediction, each of which is trained and predicted by different input variables. The random forest model obtains the final output by integrating the prediction results of these decision trees, thereby enhancing the robustness to unknown data. The model is constructed using 100 to 200 decision trees, making it more sensitive to environmental changes and effectively reducing the risk of overfitting of a single decision tree.

[0064] In terms of predicting irrigation demand, the random forest model dynamically adjusts the prediction of irrigation water volume based on real-time updated environmental data. For example, when the random forest model predicts that soil moisture is less than 25% and future rainfall is less than 10 mm, it is judged that the crop is short of water and needs irrigation; if the soil moisture is sufficient or the predicted rainfall is sufficient, irrigation can be reduced or suspended, thereby saving water resources.

[0065] In addition, the influence of each input variable on irrigation decision is quantified by monitoring the feature importance of each input variable. This analysis enables the random forest model to identify the environmental parameters that have the greatest impact on water resource management, so that more attention can be paid to these important features in future data collection and decision-making. For example, among multiple environmental parameters, soil moisture and rainfall have the most significant impact on irrigation demand prediction, so the real-time changes of these parameters will be tracked.

[0066] S3, determining an irrigation plan based on the irrigation water volume.

[0067] Specifically, select a suitable irrigation method and adjust the water pump flow based on the irrigation water volume.

[0068] The embodiments of the present application achieve the following beneficial effects through the wind-solar complementary irrigation device and the wind-solar complementary irrigation method applied to the device: (1) Alleviate water shortage in arid and semi-arid areas and avoid water waste during irrigation; (2) Reduce energy consumption of irrigation systems and achieve efficient wind-solar complementary energy-saving irrigation; (3) Effectively control soil salt accumulation and prevent soil salinization from harming crops; (4) Dynamically adjust irrigation plans according to crop water requirements and climatic conditions to improve the accuracy and intelligence of irrigation; (5) Optimize the water ratio of well irrigation and canal irrigation, optimize the ratio of solar energy and wind energy, and achieve maximum utilization of water and electricity.

[0069] S4, design and adjust the wind-solar complementarity ratio based on the irrigation plan.

[0070] Specifically, the pump is selected based on the power demand E and the design flow Q to ensure that the maximum irrigation demand is met. Based on local environmental conditions, including light intensity and wind speed, the capacity configuration ratio of the wind-solar hybrid system is designed.

[0071] The steps for selecting a photovoltaic system include: determining the power and area of ​​the solar panels based on the average annual solar radiation and sunshine duration, and selecting photovoltaic modules with high conversion efficiency.

[0072] The steps for selecting a wind power generation system include: based on the wind speed frequency distribution, selecting a wind turbine with low starting wind speed and stable operation to ensure continuous power supply in windy seasons.

[0073] The configuration steps include: giving priority to the use of photovoltaic systems for power generation, enabling wind power generation systems to supplement power supply when wind speed is sufficient, and avoiding power outages caused by insufficient supply of a single energy source.

[0074] This embodiment optimizes energy distribution and scheduling through dynamic regulation of wind and solar resources, ensures efficient and stable operation of the irrigation process, and meets the water demand of crops in arid and semi-arid areas.

[0075] The following is a specific example of the above-mentioned intelligent water-saving and salt-control irrigation method for well-channel dual irrigation and wheel irrigation in arid and semi-arid areas: Step 1: Divide the planting area into several monitoring units. According to the range of the water and salt monitoring equipment, set up a monitoring point every 20 meters, and mark the monitoring unit as u, u=1,2,...,z, z is a positive integer. Arrange a sensor monitoring module in each monitoring unit to monitor the humidity, temperature and salt status of the soil in real time, forming a distributed network monitoring system to ensure full coverage of the planting area.

[0076] Step 2: Obtain the soil moisture value S of each monitoring unit u , soil temperature value W u , Soil salinity E u ; At the same time, get the number of crops in each unit and mark the number of crops as Z B , combined with sensor data, the growth status and water demand of crops can be understood in real time.

[0077] Step 3: Inner Mongolia Hetao Irrigation Area (Inner Mongolia is an arid and semi-arid area, so the Hetao Irrigation Area in Inner Mongolia is used as an example here) mainly produces corn and sunflowers. The water requirement of corn in spring, summer and autumn irrigation is greater than that of sunflowers. Therefore, we take the typical area where 38 acres of land are planted with corn as an example: From the data collected in steps 1 and 2, we can see that the average temperature in the region from August to September is 18.64℃, there are 2 days with high temperature (highest temperature > 35℃), 3 days with low temperature (lowest temperature < 0℃), and the overall temperature is on a downward trend. There are 11 days with precipitation, with a total precipitation of 83.4mm, and the maximum daily precipitation is 47.6mm, reaching the heavy rain standard, one day of precipitation reaching the moderate rain standard, and the remaining 9 days of precipitation are all light rain.

[0078] The irrigation schedule of corn under drip irrigation can be obtained as shown in Table 1 and Figure 5 ,in, Figure 5 This is an irrigation system diagram for corn provided in an embodiment of the present application.

[0079] Table 1 Irrigation schedule for corn drip irrigation

[0080] The soil in the Hetao irrigation area is prone to salinization. It is difficult to control soil salinity by irrigation only during the crop growth period. In the non-growing period, concentrated leaching is carried out through ground irrigation, that is, spring irrigation, summer irrigation and autumn irrigation. The proportion of well-channel combination can be decided according to actual conditions. The principle is: well irrigation is adopted during the growth period, and the irrigation method is drip irrigation under the film; different well-channel ratios can be selected according to the water source conditions for spring and autumn irrigation. In principle, channel irrigation is the main method. When the canal irrigation water is tight, a small number of well irrigations can be appropriately adopted. The irrigation methods for spring and autumn irrigation are all ground irrigation.

[0081] The following example uses well irrigation during the growth period, and the irrigation method is sub-membrane drip irrigation; the ratio of wells to channels in spring irrigation is 1:2, and the ratio of wells to channels in autumn irrigation is 1:3. The water pump design for the irrigation wells is based on the water volume provided by the wells for spring irrigation and autumn irrigation is 20 m³ and 35 m³ respectively.

[0082] Step 4: Flow design of water well pump By formula The flow rate required for each irrigation period of 38 mu of land can be calculated as shown in Table 2: Table 2 Single irrigation flow requirements at different times

[0083] The flow rate of the water pump is designed based on 844.44 m³ during the period of maximum flow demand. The water pump can meet the irrigation needs at other times while meeting the maximum demand.

[0084] Step 5: Design of water pumping station head According to the data, in 2023, the average groundwater depth is 2527.22mm (2.53m). In 2024, the average groundwater depth is 2209.04mm (2.21m).

[0085] Considering that the head loss of the field drip irrigation belt is 10m, plus the groundwater depth data, the water pump head must be at least not less than 12.53m.

[0086] To sum up, select the following specifications of the pump: Table 3 Water pump model

[0087] According to the electric energy calculation of this pump model, the working time of the pump is: 738.89m 3 / 50 m 3 / h = 14.78h, the required power: 2.2kw × 14.78h = 32.5kw, the working hours and power requirements for the rest of the period are shown in Table 4: Table 4 Pump working hours and power demand at different times

[0088] Step 6: Wind-solar hybrid design The wind-solar hybrid part was designed based on the maximum power demand of 37.16kw. The ratio of wind energy to solar energy was initially designed based on the average wind speed and sunshine intensity in the past 30 years: The monthly average wind speed of the Urad Front Banner Meteorological Station from 1991 to 2006 fluctuated around 3m / s, and the monthly average wind speed decreased to 2m / s from 2006 to 2015; the monthly average wind speed of the Linhe Meteorological Station from 1991 to 2012 was 1.8m / s, and the monthly average wind speed increased slightly from 2013 to 2022, maintaining at 2.3m / s, which is lower than the wind speed conditions suitable for wind power generation. From 1991 to 2022, the annual average sunshine hours of the Linhe, Urad Front Banner, and Wuyuan County meteorological stations did not change much from year to year, fluctuating around 8.5h overall, and the annual sunshine hours were around 3200h, belonging to the first category of solar energy resource areas (sunshine hours 3200-3300h), with abundant solar energy resources and good conditions for using solar energy for power generation.

[0089] Combined with the sunshine and wind speed conditions, wind energy resources cannot meet the power generation requirements in most of the time, and can only meet the demand in a few times. This means that the wind-solar complementarity in Inner Mongolia must be based on solar energy, supplemented by wind energy: Photovoltaic panel configuration: This embodiment is configured with 6 750W photovoltaic panels with a total power of 4500W. The achievable electric energy calculated according to the average number of sunshine hours = 4.5kw × 8.5h = 38.25kw. The maximum electric energy demand can be met by photovoltaic panels alone. When the sunshine intensity is less than 8.5h, wind power generation equipment can be used to supplement it. From the configuration point of view, the power generation capacity of the photovoltaic system occupies the main part of the energy supply. Considering that the annual sunshine hours in Inner Mongolia are about 3200 hours, the utilization rate of photovoltaic panels can meet the daily power demand of the system at a high level. Therefore, in Inner Mongolia, in the wind-solar complementary system, the proportion of light energy should be designed to reach more than 80%.

[0090] Wind power generation configuration: In this embodiment, the irrigation device includes a 300W wind turbine. As can be seen from the configuration, wind energy accounts for a small proportion of the entire system. Its main purpose is to supplement the battery at night, on cloudy days or when there is insufficient light, and to supplement some power demand when power is at its maximum. Since wind speed conditions are unstable and below the power generation threshold for most of the time, wind energy accounts for about 20% of the system and is only used for auxiliary power supply.

[0091] Realization and optimization of the ratio of light energy to wind energy: According to the design of the ratio of light energy to wind energy, six photovoltaic panels and one 300W wind turbine were selected. This combination can meet the irrigation power demand in most cases. On sunny days, the photovoltaic panels are responsible for the main power generation task; and during the period of suitable wind speed, the wind turbine can effectively supplement energy and further reduce the dependence on external electricity.

[0092] By configuring a 5KW inverter to integrate the power of photovoltaic panels and wind turbines, the MPPT photovoltaic controller can track the maximum power point in real time and improve the power generation efficiency of photovoltaic panels. This ensures that the output power of the system can always be optimized under different light and wind conditions.

[0093] Step 7: Battery and power stability design Battery configuration: Equipped with 4 48V 200Ah batteries, which can temporarily store 38.4kw of electricity. The battery can provide sufficient energy storage support in the absence of light and wind. At night or on consecutive cloudy days, the battery will ensure the continuous operation of the system and ensure uninterrupted irrigation process.

[0094] Battery management and stability control: The battery management module intelligently monitors the charge and discharge status of the battery to ensure that the battery is not over-discharged or over-charged. Combined with the inverter control all-in-one machine, the system can automatically adjust the power generation priority of solar energy and wind energy according to the power demand to achieve efficient energy management.

[0095] Step 8: Adaptability and Optimization In view of the fact that Inner Mongolia has abundant sunshine but unstable wind speed, photovoltaic panels provide most of the electricity supply, while wind turbines provide additional power when wind speed conditions are good. This design is in line with local resource conditions, improves energy utilization efficiency and reduces operating costs.

[0096] In seasons with higher wind speeds (such as spring), the proportion of wind power generation can be appropriately increased. The system can automatically adjust the power generation of the wind turbine according to the wind speed conditions, thereby further balancing the power supply ratio of wind energy and solar energy.

[0097] Irrigation mode switching strategy Based on the intelligent switching between well irrigation and canal irrigation modes, the irrigation plan is dynamically adjusted by combining real-time groundwater level, soil moisture, meteorological data, salinity, etc. to ensure the rational use of water resources and optimal growth conditions for crops.

[0098] By switching the above irrigation modes and dynamically adjusting the irrigation scheme, it is possible to: make full use of well water when the groundwater level is high to ensure a stable water source. Give priority to canal water when the water supply in the irrigation area is abundant to reduce groundwater exploitation and protect groundwater resources. Combine soil moisture and weather forecasts to optimize irrigation, avoid water waste and ensure irrigation accuracy.

[0099] Based on this 38-acre typical area, a one-year operation was carried out. Figure 6 and Figure 7 They are respectively a dynamic change diagram of soil salt content at different depths and a dynamic change diagram of soil moisture at different depths provided in the embodiments of the present application.

[0100] Step 9: Forecast of irrigation water volume Dynamically predict irrigation needs based on real-time environmental data. For example, when soil moisture is less than 25% and future rainfall is less than 10 mm, the crop is judged to be in a state of water shortage and needs immediate irrigation; if soil moisture is sufficient or sufficient rainfall is predicted, irrigation is reduced or suspended to save water resources.

[0101] By analyzing the importance of environmental variables, the parameters that have the greatest impact on irrigation decisions, such as soil moisture and rainfall, are identified, and changes in these data are tracked. The model updates environmental data every 6 hours, reassesses irrigation needs in real time, and ensures that crops receive the best water supply.

[0102] Through the random forest model deployed on edge computing nodes and cloud servers, the system achieves accurate prediction and dynamic adjustment. The model combines historical meteorological, soil and crop growth data for offline training, and supports cloud-based big data analysis and model updates. Based on the prediction results, the control module dynamically adjusts water pumps, solenoid valves and other equipment to achieve precise irrigation.

[0103] In addition, the embodiment of the present application further provides an electronic device, which can be a computer, a tablet computer, or other device. The electronic device can implement the steps of any of the embodiments of the method for intelligent water-saving and salt-controlling irrigation with wind and solar complementary well-channel dual irrigation and wheel irrigation in arid and semi-arid areas provided in the embodiment of the present application, and thus can achieve the beneficial effects that can be achieved by any of the methods for intelligent water-saving and salt-controlling irrigation with wind and solar complementary well-channel dual irrigation and wheel irrigation in arid and semi-arid areas provided in the embodiment of the present application, as detailed in the previous embodiments, which will not be repeated here.

[0104] Figure 8 The specific structural block diagram of the electronic device provided by the embodiment of the present invention is shown, and the electronic device can be used to implement the wind-solar complementary intelligent water-saving and salt-control irrigation method for well-channel dual-irrigation wheel irrigation in arid and semi-arid areas provided in the above embodiment. The electronic device 500 can be a terminal, a server, and other devices, wherein the terminal can include a tablet computer, a laptop computer, a personal computer (PC), a micro-processing box, or other devices.

[0105] The RF circuit 510 is used to receive and send electromagnetic waves, realize the mutual conversion between electromagnetic waves and electrical signals, and thus communicate with a communication network or other devices. The RF circuit 510 may include various existing circuit elements for performing these functions, such as antennas, radio frequency transceivers, digital signal processors, encryption / decryption chips, user identity module (SIM) cards, memories, etc. The RF circuit 510 can communicate with various networks such as the Internet, corporate intranets, wireless networks, or communicate with other devices through wireless networks. The above-mentioned wireless networks may include cellular telephone networks, wireless local area networks, or metropolitan area networks. The above-mentioned wireless networks may use various communication standards, protocols and technologies, including but not limited to Global System for Mobile Communication (GSM), Enhanced Data GSM Environment (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Access (CDMA), Time Division Multiple Access (TDMA), Wireless Fidelity (Wi-Fi) (such as Institute of Electrical and Electronics Engineers standards IEEE 802.11a, IEEE 802.11b, IEEE802.11g and / or IEEE802.11n), Voice over Internet Protocol (VoIP), Worldwide Interoperability for Microwave Access (Wi-Max), other protocols for email, instant messaging and short messages, and any other suitable communication protocols, even those that have not yet been developed.

[0106] The memory 520 can be used to store software programs and modules, such as the corresponding program instructions / modules in the above embodiments. The processor 580 executes various functional applications and data processing by running the software programs and modules stored in the memory 520, that is, realizing the functions of taking pictures with the front camera, processing the captured images, and switching the display color of the display content on the display screen. The memory 520 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 520 may further include a memory remotely arranged relative to the processor 580, and these remote memories may be connected to the electronic device 500 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0107] The input unit 530 may be used to receive input digital or character information, and generate a keyboard and a mouse related to user settings and function control. The display unit 540 may be used to display information input by the user or information provided to the user and various graphical user interfaces, which may be composed of graphics, text, icons, videos, and any combination thereof. The display unit 540 may include a display panel 541, which may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like.

[0108] The audio circuit 560, the speaker 561, and the microphone 562 can provide an audio interface between the user and the electronic device 500. The audio circuit 560 can transmit the electrical signal converted from the received audio data to the speaker 561, which is converted into a sound signal for output; on the other hand, the microphone 562 converts the collected sound signal into an electrical signal, which is received by the audio circuit 560 and converted into audio data, and then the audio data is output to the processor 580 for processing, and then sent to another terminal through the RF circuit 510, or the audio data is output to the memory 520 for further processing. The audio circuit 560 may also include an earplug jack to provide communication between an external headset and the electronic device 500.

[0109] The electronic device 500 can help the user receive requests, send information, etc. through the transmission module 570 (such as a Wi-Fi module), which provides the user with wireless broadband Internet access. Although the transmission module 570 is shown in the figure, it can be understood that it is not a necessary component of the electronic device 500 and can be omitted as needed without changing the essence of the invention.

[0110] The processor 580 is the control center of the electronic device 500. It uses various interfaces and lines to connect various parts of the entire mobile phone. By running or executing software programs and / or modules stored in the memory 520, and calling data stored in the memory 520, it executes various functions of the electronic device 500 and processes data, thereby monitoring the electronic device as a whole. Optionally, the processor 580 may include one or more processing cores; in some embodiments, the processor 580 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communications. It can be understood that the above-mentioned modem processor may not be integrated into the processor 580.

[0111] The electronic device 500 also includes a power supply 590 (such as a battery) for supplying power to various components. In some embodiments, the power supply can be logically connected to the processor 580 through a power management system, so that the power management system can manage charging, discharging, and power consumption management. The power supply 590 can also include any components such as one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, and power status indicators.

[0112] Although not shown, the electronic device 500 also includes a camera (such as a front camera, a rear camera), a Bluetooth module, etc., which will not be described in detail here. Specifically in this embodiment, the display unit of the electronic device is a touch screen display, and the mobile terminal also includes a memory, and one or more programs, wherein one or more programs are stored in the memory, and are configured to be executed by one or more processors. One or more programs include instructions for performing the following operations: Obtain environmental data and water level information of well water and canal water; determining an irrigation water amount based on the environmental data and the water level information; An irrigation plan is determined based on the irrigation water amount.

[0113] In specific implementation, the above modules can be implemented as independent entities, or can be arbitrarily combined and implemented as the same or several entities. The specific implementation of the above modules can be found in the previous method embodiments, which will not be repeated here.

[0114] Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructions, or by controlling related hardware through instructions, and the instructions can be stored in a computer-readable storage medium and loaded and executed by a processor. To this end, an embodiment of the present invention provides a storage medium, which stores a plurality of instructions, which can be loaded by a processor to execute the steps of any embodiment of the wind-solar complementary intelligent water-saving and salt-control irrigation method for well-channel dual irrigation and wheel irrigation in arid and semi-arid areas provided by an embodiment of the present invention.

[0115] The computer-readable storage medium may include: a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0116] Since the instructions stored in the storage medium can execute the steps in any embodiment of the intelligent water-saving and salt-control irrigation method for well-channel dual irrigation and rotation irrigation in arid and semi-arid areas provided by the embodiments of the present invention, the beneficial effects that can be achieved by the intelligent water-saving and salt-control irrigation method for well-channel dual irrigation and rotation irrigation in arid and semi-arid areas provided by the embodiments of the present invention can be achieved. Please see the previous embodiments for details and will not be repeated here.

[0117] The above describes in detail the intelligent water-saving and salt-control irrigation method, device, storage medium and electronic device for wind-solar complementary dual-irrigation irrigation in arid and semi-arid areas provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An intelligent water-saving and salt-control irrigation device for well-channel dual irrigation and wheel irrigation in arid and semi-arid areas with wind-solar complementary function, characterized in that: The device comprises: Sensor monitoring module, used to obtain real-time environmental data and water level information of well water and canal water; An energy supply module, comprising a solar energy component and a wind power generation component, wherein the solar energy component is used to convert solar energy into electrical energy, and the wind power generation component is used to convert wind energy into electrical energy to power the device; A control module, connected to the sensor monitoring module and the energy supply module respectively, and used to calculate the irrigation water volume according to the environmental data and water level information; The irrigation module is connected to the control module and is used to control the output water volume according to the calculated irrigation water volume.

2. The arid and semi-arid area well-channel dual irrigation wheel irrigation wind-solar complementary intelligent water-saving and salt-control irrigation device according to claim 1 is characterized in that: The sensor monitoring module includes a humidity sensor, a temperature sensor and a salt sensor; The environmental data includes soil moisture data, temperature data and soil salinity data, and the water level information includes precipitation, groundwater level and channel water level data.

3. The arid and semi-arid area well-channel dual irrigation wheel irrigation wind-solar complementary intelligent water-saving and salt-control irrigation device according to claim 2 is characterized in that: The control module includes a controller, and the irrigation module includes a relay and a water pump. The relay is connected to the controller, and the controller controls the flow of the water pump through the relay.

4. The arid and semi-arid area well-channel dual irrigation wheel irrigation wind-solar complementary intelligent water-saving and salt-control irrigation device according to claim 3 is characterized in that: The solar energy assembly includes a photovoltaic panel, and the photovoltaic panel is fixed by a photovoltaic bracket; The wind power generation component comprises a wind turbine, a vertical pole and a wind blade. The wind turbine is connected to the vertical pole and the wind blade respectively. The wind turbine comprises a wind turbine controller. The wind turbine controller is used to adjust the operating state of the wind turbine.

5. A method for intelligent water-saving and salt-control irrigation with double irrigation of wells and canals in arid and semi-arid areas and wind-solar complementary irrigation, characterized in that: include: Obtain environmental data and water level information of well water and canal water; determining an irrigation amount based on the environmental data and the water level information; An irrigation plan is determined based on the irrigation amount.

6. The method for intelligent water-saving and salt-controlling irrigation with well-channel dual irrigation and wheel irrigation in arid and semi-arid areas according to claim 5 is characterized in that: The determining of the irrigation amount based on the environmental data and the water level information comprises: Calculated by the following formula: Among them, Q is, m is the preset irrigation quota, A is the irrigation area, is the irrigation efficiency, P is the pump power, g is the gravitational acceleration, is the overall efficiency of the device, E is the total electrical energy, and T is the power generation time.

7. The method for intelligent water-saving and salt-controlling irrigation with well-channel dual irrigation and wheel irrigation and wind-solar complementary irrigation in arid and semi-arid areas according to claim 5 is characterized in that: The determining of the irrigation amount based on the environmental data and the water level information comprises: Preprocessing the environmental data and the water level information; The preprocessed environmental data and water level information were input into the trained random forest model to obtain the predicted irrigation amount.

8. The method for intelligent water-saving and salt-controlling irrigation with dual irrigation of wells and canals and wind-solar complementary irrigation in arid and semi-arid areas according to claim 7 is characterized in that: The random forest model uses an ensemble of several decision trees.

9. The method for intelligent water-saving and salt-controlling irrigation with double irrigation of wells and canals in arid and semi-arid areas according to claim 8 is characterized in that: The decision process of the decision tree includes: When the root water storage is less than the minimum water storage and the rainfall is less than the preset rainfall threshold, the irrigation water volume is predicted by the random forest model; When the root water storage is less than the minimum water storage and the rainfall is greater than the preset rainfall threshold, no irrigation is required; When the maximum water storage capacity > root water storage capacity > minimum water storage capacity, no irrigation is required; When the root water storage capacity > maximum water storage capacity, drainage occurs through the soil.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor to execute the intelligent water-saving and salt-control irrigation method for well-channel dual irrigation and wheel irrigation and wind-solar complementary irrigation in arid and semi-arid areas as described in any one of claims 5 to 9.

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