Irrigation and drainage system for precisely controlling field water level and implementation method therefor

Abstract

The present invention relates to the field of water-saving irrigation. Disclosed are an irrigation and drainage system for precisely controlling a field water level and an implementation method therefor. The irrigation and drainage system comprises a water pump controller, signal source sending devices, a pump system, a water delivery pipe, tee fittings, flow meters, water level meters, electromagnetic switch valve assemblies, soil moisture sensors, an irrigation and drainage dual-purpose channel, inlet electromagnetic lifting / lowering valves, drainage electromagnetic lifting / lowering valves, a remote execution control element, a signal source receiving device, a first test field, a second test field, a third test field, and a fourth test field. The pump system is a core irrigation element; the water level meters are configured to monitor water level information in the test fields; the soil moisture sensors are configured to monitor soil moisture information in the test fields; the flow meters are configured to read water volume data of water pumped by the pump system; the inlet electromagnetic lifting / lowering valves are configured to implement irrigation within the test fields; and the drainage electromagnetic lifting / lowering valves are configured to implement drainage within the test fields. The irrigation and drainage system can simultaneously precisely control the field water levels by means of a manual control mode and a remote control mode.

Description

A drainage and irrigation system for precise control of field water levels and its implementation method Technical Field

[0001] This invention relates to the field of water-saving irrigation, and in particular to a drainage and irrigation system for precisely controlling field water levels and its implementation method. Background Technology

[0002] Vigorously developing water-saving irrigation is the fundamental solution to my country's agricultural water shortage. With rapid economic development and continuous population growth, the demand for agricultural water is constantly increasing, while water resources are becoming increasingly scarce, especially in arid and semi-arid regions where water shortages are particularly severe. In the growth process of agricultural crops, especially rice, the growth process can be divided into seedling stage, greening stage, tillering stage, jointing stage, young panicle stage, panicle elongation stage, and grain filling stage, according to the definition and standards of its growth stages. These growth stages have different water requirements, and scientific and reasonable water management is key to ensuring the healthy growth of rice. When rice needs water, insufficient water in the field will lead to insufficient nutrient content in the crop, thus affecting growth and development and reducing its resistance to adverse conditions; while when the crop does not need water, excessive water in the field will cause root hypoxia, affecting grain filling and even leading to disease. Therefore, precise control of field water levels will directly affect the yield and quality of rice, and is related to the economic benefits of agriculture and the livelihoods of farmers.

[0003] However, in many cases, due to unsuitable field water levels, rice yields and quality are often unsatisfactory, causing economic losses for farmers and posing numerous challenges to the construction of high-standard farmland projects. Traditional irrigation management methods often fail to meet the needs of modern agriculture, unable to achieve precise water control, leading to water waste and low production efficiency. To solve this scientific problem, it is necessary to design an irrigation and drainage system for precise control of field water levels and its implementation method. This system should integrate modern technologies, such as the Internet of Things, sensors, and automated control technology, to dynamically adjust irrigation and drainage strategies by monitoring soil moisture and field water levels in real time, thereby achieving efficient water resource utilization. This will not only help improve rice yield and quality but also provide strong support for sustainable agricultural development and promote the improvement of the farmland ecological environment. Through such technological innovation, my country's agriculture will be better able to cope with various challenges of water scarcity and achieve a win-win situation for both economic and ecological benefits. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an irrigation and drainage system and its implementation method for precise control of field water levels. This system enables precise control of different water layers in farmland irrigation and drainage, solving problems caused by unsuitable water volume during crop growth and thus improving crop growth. Furthermore, this invention enhances the operational reliability of farmland irrigation and drainage, creating favorable conditions for efficient water resource management, thereby increasing crop yield and water resource utilization efficiency.

[0005] The present invention achieves the above-mentioned technical objectives through the following technical means.

[0006] A precise irrigation and drainage system for controlling field water levels includes a pump system, a water delivery pipe, a water level gauge, an electromagnetic switch valve assembly, a soil moisture sensor, an inlet electromagnetic lifting valve, and a drainage electromagnetic lifting valve. The pump system delivers water to the experimental field through the water delivery pipe. The experimental field is equipped with a flow meter, a water level gauge, an electromagnetic switch valve assembly, a soil moisture sensor, an inlet electromagnetic lifting valve, and a drainage electromagnetic lifting valve. The pump system can be simultaneously turned on and off manually and remotely.

[0007] In the above scheme, the flow meter is used to read the water volume data input into the experimental field by the pump system;

[0008] The inlet solenoid lifting valve is used to control the water intake of the experimental field;

[0009] The water level gauge is used to monitor the water level information of the experimental field;

[0010] The soil moisture sensor is used to monitor soil moisture information in the experimental field;

[0011] The solenoid valve for drainage is used to control the drainage of the experimental field;

[0012] The electromagnetic switch valve assembly is used to control the opening and closing of the water supply pipe in the irrigation experimental field.

[0013] In the above scheme, the inlet solenoid valve is equipped with a manual switch, a solar panel, and a signal source transmitting device. The manual switch is used to open and close the inlet solenoid valve manually. The signal source transmitting device and the signal source receiving device are connected to a remote execution control element, which is used to open and close the inlet solenoid valve. The solar panel is used to provide power.

[0014] In the above scheme, the water level gauge is equipped with a solar panel, a signal source transmitting device, and a scale line; the solar panel is used to provide power; the signal source transmitting device and the signal source receiving device are connected to a remote execution control element, and the remote execution control element is operated to intelligently compare with the set upper limit value, thereby determining whether the corresponding experimental field needs to be drained; the scale line on the water level gauge is used to manually read the water level information in the experimental field to ensure the accuracy and reliability of the acquired data.

[0015] In the above scheme, the soil moisture sensor is equipped with a solar panel, a vertical power transmission rod, and a signal source transmitting device; the vertical power transmission rod is used to transmit the electrical energy generated by the solar panel to the soil moisture sensor; the signal source transmitting device and the signal source receiving device are connected to a remote execution control element, and the remote execution control element is operated to intelligently compare with the set lower limit value to determine whether the corresponding experimental field needs to be irrigated.

[0016] In the above scheme, the drainage solenoid lifting valve is equipped with a solar panel, a manual switch, and a signal source transmitting device; the solar panel is used to provide power; the manual switch enables the drainage solenoid lifting valve to be opened and closed manually; the signal source transmitting device and the signal source receiving device are connected to a remote execution control element, and the opening and closing of the drainage solenoid lifting valve is intelligently realized by operating the remote execution control element.

[0017] In the above scheme, the electromagnetic switch valve assembly is equipped with a solar panel and an electromagnetic switch valve; the electromagnetic switch valve is used to control the flow direction of water in the water supply pipe; the solar panel is used to provide electricity.

[0018] The method for implementing a precise irrigation and drainage system to control field water levels, setting upper and lower limits for irrigation in experimental fields, specifically...

[0019] When the water level in the experimental field is maintained at a water layer, the water level is read using a water level gauge and the water level information is transmitted through a signal source transmitting device. The signal source receiving device obtains the relevant data and compares it with the set upper limit of irrigation to determine whether the water level in the field has exceeded the upper limit. If the water level in the experimental field has exceeded the set upper limit of irrigation, the drainage solenoid lifting valve is opened by operating the remote execution control element until the water level in the field is controlled to the relevant position, and then the drainage solenoid lifting valve is closed.

[0020] When the water level in the experimental field is maintained without a water layer, the soil moisture sensor transmits soil moisture information through a signal source transmitter. The signal source receiver obtains the relevant data and compares it with the set lower limit for irrigation to determine whether the soil moisture content has fallen below the lower limit. If the soil moisture content has fallen below the set lower limit for irrigation, the pump system is turned on by operating the remote execution control element, and the inlet solenoid valve is opened at the same time. The data in the flow meter is read until the field water level is controlled to the relevant position, and then the pump system and the inlet solenoid valve are turned off.

[0021] In the above plan, the experimental fields include Experimental Field I, Experimental Field II, Experimental Field III, and Experimental Field IV;

[0022] When only experimental field I needs irrigation, the pump system is activated by operating the remote control element, along with the electromagnetic valve assembly C, and the inlet electromagnetic lift valves G, H, and I; the electromagnetic valve assembly A, drainage electromagnetic lift valves E and F are closed, and the electromagnetic valve assembly D is also closed. When only experimental field I needs drainage, the pump system is shut down by operating the remote control element, and the drainage electromagnetic lift valves E and F are opened, allowing the water in experimental field I to flow into the irrigation and drainage canal.

[0023] When only Experimental Field II needs irrigation, the pump system is activated by operating the remote control element, along with solenoid valve assembly A, inlet solenoid lift valves A, B, and C; and drain solenoid lift valves A and B are closed, as are solenoid valve assembly B and C. When only Experimental Field II needs drainage, the pump system is shut down by operating the remote control element, and drain solenoid lift valves A and B are opened, allowing water in Experimental Field II to flow into the drainage ditch.

[0024] When only Experimental Field III needs irrigation, the pump system is activated by operating the remote control element, along with electromagnetic valve assembly A and electromagnetic valve assembly B, and inlet electromagnetic lift valves D, E, and F; electromagnetic valve assembly C is deactivated, along with inlet electromagnetic lift valves A, B, and C, and drainage electromagnetic lift valves C and D; when only Experimental Field III needs drainage, the pump system is deactivated by operating the remote control element, and drainage electromagnetic lift valves C and D are activated, allowing water in Experimental Field III to flow into the drainage ditch.

[0025] When only experimental field IV needs irrigation, the pump system is activated by operating the remote control element, along with electromagnetic valve assemblies C and D, and inlet electromagnetic lifting valves J, K, and L; electromagnetic valve assembly A is deactivated, as are inlet electromagnetic lifting valves G, H, and I, and drainage electromagnetic lifting valves G, H, and H. When only experimental field IV needs drainage, the pump system is deactivated by operating the remote control element, and drainage electromagnetic lifting valves H and H are activated, allowing water from experimental field IV to flow into the irrigation and drainage canal.

[0026] When experimental fields I and II require irrigation, the pump system is activated by operating the remote control element, along with electromagnetic valve assemblies A and C, and inlet electromagnetic lifting valves A, B, C, G, H, and I; while drainage electromagnetic lifting valves A, B, E, and F are closed, as are electromagnetic valve assemblies B and D. When experimental fields I and II require drainage, the pump system is deactivated by operating the remote control element, and drainage electromagnetic lifting valves A, B, E, and F are activated, allowing water from experimental field I to flow into the irrigation and drainage canal, and water from experimental field II to flow into the drainage ditch.

[0027] When experimental fields I and III require irrigation, the pump system is activated by manipulating the remote control element, along with electromagnetic valve assemblies A, B, and C, and inlet electromagnetic lift valves D, E, F, G, H, and I. Inlet electromagnetic lift valves A17, B19, and C21 are closed, as are drainage electromagnetic lift valves C, D, E, and F, and electromagnetic valve assembly D. When experimental fields I and III require drainage, the pump system is deactivated by manipulating the remote control element, and drainage electromagnetic lift valves C, D, E, and F are activated. This allows water from experimental field I to flow into the irrigation and drainage canal, and water from experimental field III to flow into the drainage ditch.

[0028] When experimental fields I and IV need irrigation, the pump system is activated by operating the remote control element, along with electromagnetic valve assemblies C and D, and inlet electromagnetic lifting valves G, H, I, J, K, and L; electromagnetic valve assembly A is deactivated, as are drainage electromagnetic lifting valves E, F, G, and H. When experimental fields I and IV need drainage, the pump system is deactivated by operating the remote control element, and drainage electromagnetic lifting valves E, F, G, and H are activated, ensuring that water from both fields flows into the irrigation and drainage canal.

[0029] When experimental fields II and III require irrigation, the pump system is activated by manipulating the remote control element, along with electromagnetic valve assembly A and B, and inlet electromagnetic lift valves A, B, C, D, E, and F; while drain electromagnetic lift valves A, B, C, and D are closed, as is electromagnetic valve assembly C. When experimental fields II and III require drainage, the pump system is deactivated by manipulating the remote control element, and drain electromagnetic lift valves A, B, C, and D are activated, allowing water from both fields to flow into the drainage ditch.

[0030] When experimental fields II and IV require irrigation, the pump system is activated by manipulating the remote control element, along with electromagnetic valve assemblies A, C, and D, and inlet electromagnetic lifting valves A, B, C, J, K, and L; inlet electromagnetic lifting valves G, H, and I are closed; and drainage electromagnetic lifting valves A, B, G, and H are closed, along with electromagnetic valve assembly B. When experimental fields II and IV require drainage, the pump system is deactivated by manipulating the remote control element, and drainage electromagnetic lifting valves B, G, and H are activated, along with electromagnetic valve assembly B. This allows water from experimental field II to flow into the drainage ditch, and water from experimental field IV to flow into the irrigation and drainage canal.

[0031] When experimental fields III and IV require irrigation, the pump system is activated by manipulating the remote control element, along with electromagnetic valve assemblies A, B, C, and D, and inlet electromagnetic lifting valves D, E, F, J, K, and L. Inlet electromagnetic lifting valves A, B, C, G, H, and I are then closed, as are drainage electromagnetic lifting valves C, D, G, and H. When experimental fields III and IV require drainage, the pump system is deactivated by manipulating the remote control element, and drainage electromagnetic lifting valves C, D, G, and H are activated. This allows water from experimental field III to flow into the drainage ditch, and water from experimental field IV to flow into the irrigation and drainage canal.

[0032] When experimental fields I, II, and III require irrigation, the pump system is activated by manipulating the remote control element, along with electromagnetic valve assemblies A, B, and C, and inlet electromagnetic lifting valves A, B, C, D, E, F, G, H, and I. Electromagnetic valve assembly D is then deactivated, as are drainage electromagnetic lifting valves A, B, C, D, E, and F. When experimental fields I, II, and III require drainage, the pump system is deactivated by manipulating the remote control element, and drainage electromagnetic lifting valves A, B, C, D, E, and F are activated. This allows water from experimental field I to flow into the irrigation and drainage canal, and water from experimental fields II and III to flow into the drainage ditch.

[0033] When experimental fields I, II, and IV require irrigation, the pump system is activated by manipulating the remote control components. This activates electromagnetic valve assemblies A, C, and D, and opens inlet electromagnetic lifting valves A, B, C, G, H, I, J, K, and L. Electromagnetic valve assembly B is then deactivated, as are drainage electromagnetic lifting valves A, G, H, I, J, K, and L. The system includes a lowering valve B, a drainage solenoid lifting valve E, a drainage solenoid lifting valve F, a drainage solenoid lifting valve G, and a drainage solenoid lifting valve H. When experimental fields I, II, and IV need drainage, the pump system is shut down and the drainage solenoid lifting valves A, B, E, F, G, and H are opened by operating the remote control element. This allows water in experimental fields I and IV to flow into the irrigation and drainage canal, and water in experimental field II to flow into the drainage ditch.

[0034] When experimental fields I, III, and IV require irrigation, the pump system is activated by manipulating the remote control components. This activates electromagnetic valve assemblies A, B, C, and D, and inlet electromagnetic lifting valves D, E, F, G, H, I, J, K, and L. Inlet electromagnetic lifting valves A, B, and C are then closed. The drainage system is shut off. Water solenoid lifting valve C, drainage solenoid lifting valve D, drainage solenoid lifting valve E, drainage solenoid lifting valve F, drainage solenoid lifting valve G, and drainage solenoid lifting valve H; when experimental fields I, III, and IV need drainage, the pump system is shut down and drainage solenoid lifting valves C, D, E, F, G, and H are opened by operating the remote control element; so that the water in experimental fields I and IV flows into the irrigation and drainage canal, and the water in experimental field III flows into the drainage ditch;

[0035] When experimental fields II, III, and IV require irrigation, the pump system is activated by manipulating the remote control components. This activates electromagnetic valve assemblies A, B, C, and D, and inlet electromagnetic lift valves A, B, C, D, E, F, J, K, and L. Meanwhile, inlet electromagnetic lift valves G, H, and I are closed, and the drainage electromagnetic lift valve is deactivated. Valves A, B, C, D, G, and H are used to drain water from experimental fields II, III, and IV. When these fields require drainage, the pump system is shut down and the drain solenoid valves A, B, C, D, G, and H are opened by manipulating the remote control element. This allows water from experimental fields II and III to flow into the drainage ditch, and water from experimental field IV to flow into the irrigation and drainage canal.

[0036] When experimental fields I, II, III, and IV require irrigation, the pump system is activated by manipulating the remote control components. This activates electromagnetic valve assemblies A, B, C, and D, and the inlet electromagnetic lifting valves A, B, C, D, E, F, G, H, I, J, K, and L. Simultaneously, the drain electromagnetic lifting valves A, B, and L are closed. The system includes a lowering valve C, a drainage solenoid lifting valve D, a drainage solenoid lifting valve E, a drainage solenoid lifting valve F, a drainage solenoid lifting valve G, and a drainage solenoid lifting valve H. When experimental fields I, II, III, and IV need drainage, the pump system is shut down and the drainage solenoid lifting valves A, B, C, D, E, F, G, and H are opened by manipulating the remote control element. This allows water in experimental fields I and IV to flow into the irrigation and drainage canal, and water in experimental fields II and III to flow into the drainage ditch.

[0037] The beneficial effects of this invention are as follows: The irrigation and drainage system of this invention has a simple structure, is easy to operate, and has high precision. It can be operated manually or remotely online controlled, simultaneously enabling manual and remote control of the opening and closing of various key components in the irrigation and drainage system for precise control of field water levels, thereby ensuring the reliability of system operation. This invention provides a system and method for precise control of field water levels. In summary, the irrigation and drainage system for precise control of field water levels, through efficient technical means, not only improves the level of intelligence in agricultural production but also provides strong support for sustainable agricultural development. Attached Figure Description

[0038] Figure 1 is a schematic diagram of an irrigation and drainage system for precise control of field water levels;

[0039] Figure 2 is a schematic diagram of remote control;

[0040] Figure 3 is a view from direction A in Figure 1;

[0041] Figure 4 is a view from direction B in Figure 1.

[0042] Reference numerals: 1-Drainage ditch, 2-Soil moisture sensor A, 3-Water level gauge A, 4-Irrigation and drainage dual-purpose channel, 5-Ninety-degree elbow, 6-Soil moisture sensor B, 7-Water level gauge B, 8-Solenoid valve assembly A, 9-Flow meter A, 10-Flow meter B, 11-T-connector A, 12-Water delivery pipe, 13-Pump system, 14-Signal source transmitting device A, 15-Water pump controller, 16-T-connector B, 17-Inlet solenoid lift valve A, 18-Drainage solenoid lift valve A, 19-Inlet solenoid lift valve B, 20-Drainage solenoid lift valve B, 21-Inlet solenoid lift valve C, 22-Solenoid valve assembly B, 23-Soil Moisture Sensor; C, 24-Water Level Gauge; C, 25-Inlet Solenoid Lifting Valve; D, 26-Drainage Solenoid Lifting Valve; C, 27-Inlet Solenoid Lifting Valve; E, 28-Drainage Solenoid Lifting Valve; D, 29-Inlet Solenoid Lifting Valve; F, 30-Solenoid Switch Valve Assembly; C, 31-Inlet Solenoid Lifting Valve; G, 32-Drainage Solenoid Lifting Valve; E, 33-Inlet Solenoid Lifting Valve; H, 34-Drainage Solenoid Lifting Valve; F, 35-Inlet Solenoid Lifting Valve; I, 36-Solenoid Switch Valve Assembly; D, 3 7-Soil moisture sensor D, 38-Water level gauge D, 39-Inlet solenoid lift valve J, 40-Drainage solenoid lift valve G, 41-Inlet solenoid lift valve K, 42-Drainage solenoid lift valve H, 43-Inlet solenoid lift valve L, 44-Remote control element, 45-Signal source receiver, 46-Solar panel A, 47-Solar panel B, 48-Vertical power transmission rod, 49-Solar panel C, 50-Signal source transmitter B, 51-Manual switch A, 52-Solar... 53-Signal source transmitting device C, 54-Manual switch B, 55-Signal source transmitting device D, 56-Drainage ditch, 57-Drainage outlet, 58-Field water level, 59-Farmland ground, 60-Signal source transmitting device E, 61-Scale line of water level gauge A, 62-Fixing rivet of water level gauge A, 63-Support platform of water level gauge A, 64-Energy dissipation pool, 65-Water inlet outlet, 66-Water inlet ditch, 67-Solar panel E, 68-Electromagnetic switch valve, 69-Signal source transmitting device F. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0044] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] As shown in Figures 1 and 2, a precise irrigation and drainage system for controlling field water levels includes a pump controller 15, signal transmitters A14, B50, C53, D55, E60, and F69, a pump system 13, a water delivery pipe 12, tee connectors A11 and B16, flow meters A9 and B10, water level gauges A3, B7, C24, and D38, electromagnetic valve assemblies A8, B22, C30, and D36, soil moisture sensors A2, B6, C23, and D37, and a dual-purpose irrigation and drainage channel 4. The system includes: inlet solenoid lifting valves A17, B19, C21, D25, E27, F29, G31, H33, I35, J39, K41, and L43; drainage solenoid lifting valves A18, B20, C26, D28, E32, F34, G40, and H42; remote control element 44; signal source receiver 45; and experimental fields I, II, III, and IV.

[0047] Pump system 13 is the core irrigation component. Signal source transmitting device A14 is connected to signal source receiving device 45 and remote execution control element 44. The remote execution control element 44 intelligently controls the opening and closing of pump system 13. When pump system 13 is on, water is delivered through water pipe 12. The function of the pump controller 15 is to manually operate pump system 13 to open and close it. The irrigation and drainage system can simultaneously achieve manual and remote control of pump system 13 to open and close, thereby ensuring the reliability of system operation.

[0048] Flow meters A9 and B10 are used to read the water volume data of the water source supplied by pump system 13 entering experimental fields I, II, III, and IV. The data measured by flow meters A9 and B10 can be compared with the values ​​measured by water level gauges A3, B7, C24, and D38, respectively, by multiplying the product of the areas of experimental fields I, II, III, and IV by the irrigation coefficient, to verify the accuracy of the experimental data and ensure the accuracy and reliability of the irrigation and drainage system in precisely controlling the field water level.

[0049] The inlet solenoid lifting valves A17, B19, C21, D25, E27, F29, G31, H33, I35, J39, K41, and L43 are equipped with a manual switch A51, a solar panel D52, a signal source transmitting device C53, a stilling basin 64, an inlet outlet 65, and an inlet channel 66, among other components. The functions of the inlet solenoid lifting valves A17, B19, C21, D25, E27, F29, G31, H33, I35, J39, K41, and L43 are to control the water intake function in test fields I, II, III, and IV, respectively. The function of manual switch A51 is to manually operate the inlet solenoid valves A17, B19, C21, D25, E27, F29, G31, H33, I35, J39, K41, and L43 to open and close them. This allows the system to simultaneously... The system allows for manual and remote control of the opening and closing of the inlet solenoid valves A17, B19, C21, D25, E27, F29, G31, H33, I35, J39, K41, and L43, ensuring system reliability. The solar panel D52 provides power to the system and stabilizes its operation. The signal source transmitting device C53 is connected to the remote execution control element 44 along with the signal source receiving device 45. By operating the remote execution control element 44, it intelligently controls the opening degree of the water inlet outlet 65 of the water inlet solenoid valves A17, B19, C21, D25, E27, F29, G31, H33, I35, J39, K41, and L43, as well as the opening and closing of the water inlet outlet 65, thus completing the flow of water from the water inlet channel 66 to the experimental field and achieving precise control of the field water level.The function of the stilling basin 64 is to reduce the impact force of the water flow in the water pipe 12 before the water flows into the experimental field. The stilling basin 64 is built on the edge of the field so as not to affect the farming operations in the field.

[0050] The system includes water level gauges A3, B7, C24, and D38, equipped with a solar panel C49, a signal transmitter B50, scale lines 61 on water level gauge A, fixing rivets 62 for water level gauge A, and a support platform 63 for water level gauge A. Water level gauges A3, B7, C24, and D38 are used to monitor the water level information in experimental fields I, II, III, and IV, respectively. The solar panel C49 provides power to the system and stabilizes its operation. The signal transmitter B50 and signal receiver 45 are connected to a remote control element 44. By operating the remote control element 44, the system intelligently compares the data with a set upper limit value to determine whether drainage is needed for the corresponding experimental field. The scale lines 61 on water level gauge A are used for manual reading of the water level in the experimental fields, ensuring the accuracy and reliability of the data and guaranteeing precise control of the field water level. The fixing rivet 62 for water level gauge A is used to fix water level gauges A3, B7, C24, and D38 within the field plot. The support platform 63 for water level gauge A is used to maintain the stability and balance of water level gauges A3, B7, C24, and D38, thereby effectively and accurately obtaining the data generated by the field water level 58.

[0051] Soil moisture sensors A2, B6, C23, and D37 are equipped with a solar panel B47, a vertical power transmission rod 48, and a signal transmitter E60. The soil moisture sensors A2, B6, C23, and D37 are used to monitor soil moisture information in experimental fields I, II, III, and IV, respectively. The solar panel B47 provides power to the system, stabilizing its operation. The vertical power transmission rod 48 transmits the electrical energy generated by the solar panel B47 to the soil moisture sensors A2, B6, C23, and D37, maintaining stable system operation. The signal transmitter E60 and signal receiver 45 are connected to a remote control element 44. By operating the remote control element 44, the system intelligently compares the water level with a set lower limit value to determine whether irrigation is needed for the corresponding experimental field, ensuring precise control of the field water level.

[0052] The drainage solenoid lifting valves A18, B20, C26, D28, E32, F34, G40, and H42 are equipped with a solar panel A46, a manual switch B54, a signal source transmitter D55, a drainage channel 56, and a drainage outlet 57. The drainage solenoid lifting valves A18, B20, C26, D28, E32, F34, G40, and H42 are used to control the drainage function in experimental fields I, II, III, and IV, respectively. The solar panel A46 provides electrical energy to the system and stabilizes its operation. The function of the manual switch B54 is to manually operate the drain solenoid valves A18, B20, C26, D28, E32, F34, G40, and H42 to open and close them. This allows the system to simultaneously control the opening and closing of these valves manually and remotely, ensuring the reliability of the system operation. The signal source transmitter D55 and signal source receiver 45 are connected to the remote execution control element 44. By operating the remote execution control element 44, the opening degree of the drainage outlet 57 in the drainage solenoid lifting valves A18, B20, C26, D28, E32, F34, G40, and H42 is intelligently controlled, as well as the opening and closing of the drainage outlet 57. This completes the flow of water in the experimental field to the drainage ditch 56, achieving precise control of the field water level.

[0053] The electromagnetic switch valve assemblies A8, B22, C30, and D36 are equipped with a solar panel E67, an electromagnetic switch valve 68, and a signal source transmitter F69, among other components. Electromagnetic switch valve assemblies A8, B22, C30, and D36 are used to control the functions of irrigation experimental fields I, II, III, and IV. The solar panel E67 provides electrical energy to the system and stabilizes its operation. The electromagnetic switch valve 68 controls the flow direction of water in the water supply pipe 12.

[0054] The working process is as follows: Taking rice as an example, in farmland irrigation, the upper and lower limits of irrigation were first set for four experimental plots: Experimental Plot I, Experimental Plot II, Experimental Plot III, and Experimental Plot IV. Table 1 shows the setting of the upper and lower limits of irrigation during the key growth stages of different experimental rice plots.

[0055] Table 1. Irrigation upper and lower limits set during key growth stages in different rice experimental plots.

[0056] Note: % refers to the percentage of soil saturation moisture content; other values ​​indicate water depth in mm.

[0057] When the experimental field maintains a water layer, the water level 58 is read, and the water level information is transmitted through the signal source transmitting device B50 using water level gauges A3, B7, C24, and D38. The signal source receiving device 45 obtains the relevant data and compares it with the set upper limit of irrigation to determine whether the field water level has exceeded their upper limit values. If the field water level exceeds the set irrigation limit, the remote control element 44 will operate to open the following drainage solenoid valves: A18, B20, C26, D28, E32, F34, G40, and H42, until the field water level 58 is controlled to the appropriate position. Then, the drainage solenoid valves A18, B20, C26, D28, E32, F34, G40, and H42 will be closed. Through these steps, the field water level 58 can be precisely controlled through drainage during different growth stages of the rice.

[0058] When the water level in the experimental field is maintained at 58 without a water layer, soil moisture sensors A2, B6, C23, and D37 transmit soil moisture information via signal source E60. The signal source receiver 45 receives the relevant data and compares it with the set lower limit for irrigation to determine if the soil moisture content has fallen below these limits. If the soil moisture content is below the set lower limit, the remote control element 44 activates the pump system 13, simultaneously activating the inlet solenoid valves A17, B19, C21, D25, E27, F29, G31, H33, I35, J39, K41, and L43, and readings are taken from each valve. Data from flow meters A9 and B10 is collected until the field water level 58 is controlled to the relevant position. Then, pump system 13 and the following inlet solenoid valves are shut off: A17, B19, C21, D25, E27, F29, G31, H33, I35, J39, K41, and L43. Through these steps, the field water level 58 can be precisely controlled through irrigation during different growth stages of the rice.

[0059] The experiment was conducted under the following circumstances, along with the operational procedures for a precise irrigation and drainage system for controlling field water levels:

[0060] When only experimental field I needs irrigation, the pump system 13 is activated by manipulating the remote control element 44, along with the electromagnetic switch valve assembly C30, and the inlet electromagnetic lift valves G31, H33, and I35; the electromagnetic switch valve assembly A8, drainage electromagnetic lift valves E32 and F34, and electromagnetic switch valve assembly D36 are deactivated. When only experimental field I needs drainage, the pump system 13 is deactivated by manipulating the remote control element 44, and the drainage electromagnetic lift valves E32 and F34 are activated, allowing water from experimental field I to flow into the irrigation and drainage canal 4.

[0061] When only Experimental Field II needs irrigation, the pump system 13 is activated by manipulating the remote control element 44, along with the electromagnetic valve assembly A8, and the inlet electromagnetic lift valves A17, B19, and C21; the drain electromagnetic lift valves A18 and B20 are closed, as are the electromagnetic valve assembly B22 and C30. When only Experimental Field II needs drainage, the pump system 13 is deactivated by manipulating the remote control element 44, and the drain electromagnetic lift valves A18 and B20 are activated, allowing water from Experimental Field II to flow into Drainage Ditch 1.

[0062] When only experimental field III needs irrigation, the pump system 13 is activated by manipulating the remote control element 44, along with electromagnetic valve assembly A8, electromagnetic valve assembly B22, and inlet electromagnetic lift valves D25, E27, and F29; the electromagnetic valve assembly C30 is deactivated, along with inlet electromagnetic lift valves A17, B19, and C21, and drainage electromagnetic lift valves C26 and D28; when only experimental field III needs drainage, the pump system 13 is deactivated by manipulating the remote control element 44, and drainage electromagnetic lift valves C26 and D28 are activated, allowing water in experimental field III to flow into drainage ditch 1.

[0063] When only experimental field IV needs irrigation, the pump system 13 is activated by manipulating the remote control element 44, along with the electromagnetic switch valve assembly C30 and D36, and the inlet electromagnetic lift valves J39, K41, and L43; the electromagnetic switch valve assembly A8 is deactivated, along with the inlet electromagnetic lift valves G31, H33, and I35, and the drainage electromagnetic lift valves G, 40, and H42. When only experimental field IV needs drainage, the pump system 13 is deactivated by manipulating the remote control element 44, and the drainage electromagnetic lift valves 40 and H42 are activated, allowing water from experimental field IV to flow into the irrigation and drainage canal 4.

[0064] When experimental fields I and II need irrigation, the pump system 13 is activated by manipulating the remote control element 44, along with electromagnetic valve assemblies A8 and C30, and inlet electromagnetic lifting valves A17, B19, C21, G31, H33, and I35; while the drainage electromagnetic lifting valves A18, B20, E32, and F34 are closed, as are electromagnetic valve assemblies B22 and D36. When experimental fields I and II need drainage, the pump system 13 is deactivated by manipulating the remote control element 44, and the drainage electromagnetic lifting valves A18, B20, E32, and F34 are activated, allowing water from experimental field I to flow into the irrigation and drainage canal 4, and water from experimental field II to flow into the drainage ditch 1.

[0065] When experimental fields I and III require irrigation, the pump system 13 is activated by manipulating the remote control element 44, which in turn activates electromagnetic valve assemblies A8, B22, and C30, and opens the inlet electromagnetic lift valves D25, E27, F29, G31, H33, and I35. Meanwhile, inlet electromagnetic lift valves A17, B19, and C21 are closed, and the drainage electromagnetic lift valve C is closed. 26. Drainage solenoid lifting valves D28, E32, and F34 are closed, and solenoid switch valve assembly D36 is closed. When experimental field I and experimental field III need to drain water, the pump system 13 is shut down and the drainage solenoid lifting valves C26, D28, E32, and F34 are opened by manipulating the remote execution control element 44. This allows water in experimental field I to flow into the irrigation and drainage canal 4 and water in experimental field III to flow into the drainage ditch 1.

[0066] When experimental fields I and IV need irrigation, the pump system 13 is activated by manipulating the remote control element 44, along with the electromagnetic switch valve assembly C30 and D36, and the inlet electromagnetic lift valves G31, H33, I35, J39, K41, and L43; the electromagnetic switch valve assembly A8 is deactivated, along with the drainage electromagnetic lift valves E32, F34, G40, and H42. When experimental fields I and IV need drainage, the pump system 13 is deactivated by manipulating the remote control element 44, and the drainage electromagnetic lift valves E32, F34, G40, and H42 are activated, ensuring that the water in experimental fields I and IV flows into the irrigation and drainage canal 4.

[0067] When experimental fields II and III need irrigation, the pump system 13 is activated by manipulating the remote control element 44, along with electromagnetic valve assemblies A8 and B22, and inlet electromagnetic lift valves A17, B19, C21, D25, E27, and F29; while drain electromagnetic lift valves A18, B20, C26, and D28 are closed, and electromagnetic valve assembly C30 is deactivated. When experimental fields II and III need drainage, the pump system 13 is deactivated by manipulating the remote control element 44, and drain electromagnetic lift valves A18, B20, C26, and D28 are activated, allowing water from both experimental fields II and III to flow into drainage ditch 1.

[0068] When experimental fields II and IV require irrigation, the pump system 13 is activated by manipulating the remote control element 44, which in turn activates electromagnetic valve assemblies A8, C30, and D36, and inlet electromagnetic lift valves A17, B19, C21, J39, K41, and L43; while closing inlet electromagnetic lift valves G31, H33, and I35; and shutting off drainage. Electromagnetic lifting valve A18, drainage electromagnetic lifting valve B20, drainage electromagnetic lifting valve G40, and drainage electromagnetic lifting valve H42 are operated, and electromagnetic switch valve assembly B22 is closed. When experimental fields II and IV need to drain water, the pump system 13 is shut down by operating the remote execution control element 44, and the drainage electromagnetic lifting valves B20, G40, and H42 are opened, while the electromagnetic switch valve assembly B22 is closed. This allows water in experimental field II to flow into drainage ditch 1, and water in experimental field IV to flow into irrigation and drainage dual-purpose channel 4.

[0069] When experimental fields III and IV require irrigation, the pump system 13 is activated by manipulating the remote control element 44, which in turn activates electromagnetic switch valve assemblies A8, B22, C30, and D36, and inlet electromagnetic lift valves D25, E27, F29, J39, K41, and L43; and inlet electromagnetic lift valves A17, B19, C21, and G are closed. 31. The inlet solenoid lifting valves H33 and I35 are closed, and the drain solenoid lifting valves C26, D28, G40, and H42 are closed. When experimental fields III and IV need to drain water, the pump system 13 is shut down and the drain solenoid lifting valves C26, D28, G40, and H42 are opened by operating the remote control element 44. This allows water in experimental field III to flow into the drainage ditch 1 and water in experimental field IV to flow into the irrigation and drainage canal 4.

[0070] When experimental fields I, II, and III require irrigation, the pump system 13 is activated by manipulating the remote control element 44. This activates electromagnetic switch valve assemblies A8, B22, and C30, and opens the inlet electromagnetic lift valves A17, B19, C21, D25, E27, F29, G31, H33, and I35. Simultaneously, electromagnetic switch valve assembly D36 is deactivated, and drainage electromagnetic lift valves A18 and B20 are closed. Drainage solenoid lifting valves C26, D28, E32, and F34 are used. When experimental fields I, II, and III need drainage, the pump system 13 is shut down and the drainage solenoid lifting valves A18, B20, C26, D28, E32, and F34 are opened by manipulating the remote control element 44. This allows water in experimental field I to flow into the irrigation and drainage channel 4, and water in experimental fields II and III to flow into the drainage ditch 1.

[0071] When experimental fields I, II, and IV require irrigation, the pump system 13 is activated by manipulating the remote control element 44. This activates electromagnetic valve assemblies A8, C30, and D36, and opens the inlet electromagnetic lifting valves A17, B19, C21, G31, H33, I35, J39, K41, and L43. Simultaneously, electromagnetic valve assembly B22 is deactivated, as are the drainage electromagnetic lifting valves A18 and D36. The system includes a magnetic lift valve B20, a drainage electromagnetic lift valve E32, a drainage electromagnetic lift valve F34, a drainage electromagnetic lift valve G40, and a drainage electromagnetic lift valve H42. When experimental fields I, II, and IV need drainage, the pump system 13 is shut down and the drainage electromagnetic lift valves A18, B20, E32, F34, G40, and H42 are opened by manipulating the remote control element 44. This allows water from experimental fields I and IV to flow into the irrigation and drainage canal 4, and water from experimental field II to flow into the drainage ditch 1.

[0072] When experimental fields I, III, and IV require irrigation, the pump system 13 is activated by manipulating the remote control element 44, which in turn activates electromagnetic switch valve assemblies A8, B22, C30, and D36, and inlet electromagnetic lifting valves D25, E27, F29, G31, H33, I35, J39, K41, and L43; and inlet electromagnetic lifting valves A17, B19, and C21 are closed. Close the drainage solenoid lifting valves C26, D28, E32, F34, G40, and H42; when experimental fields I, III, and IV need drainage, operate the remote control element 44 to shut down the pump system 13 and open the drainage solenoid lifting valves C26, D28, E32, F34, G40, and H42; so that the water in experimental fields I and IV flows into the irrigation and drainage canal 4, and the water in experimental field III flows into the drainage ditch 1;

[0073] When experimental fields II, III, and IV require irrigation, the pump system 13 is activated by manipulating the remote control element 44. This activates electromagnetic valve assemblies A8, B22, C30, and D36, and opens the inlet electromagnetic lifting valves A17, B19, C21, D25, E27, F29, J39, K41, and L43. The inlet electromagnetic lifting valves G31, H33, and I35 are then closed, along with the drainage valve. The system includes a magnetic lift valve A18, a drainage electromagnetic lift valve B20, a drainage electromagnetic lift valve C26, a drainage electromagnetic lift valve D28, a drainage electromagnetic lift valve G40, and a drainage electromagnetic lift valve H42. When experimental fields II, III, and IV need to drain water, the pump system 13 is shut down by operating the remote control element 44, and the drainage electromagnetic lift valves A18, B20, C26, D28, G40, and H42 are opened. This allows water from experimental fields II and III to flow into the drainage ditch 1, and water from experimental field IV to flow into the irrigation and drainage canal 4.

[0074] When experimental fields I, II, III, and IV require irrigation, the pump system 13 is activated by manipulating the remote control element 44. This activates electromagnetic valve assemblies A8, B22, C30, and D36, and opens the inlet electromagnetic lifting valves A17, B19, C21, D25, E27, F29, G31, H33, I35, J39, K41, and L43. The drainage electromagnetic lifting valves A18, B20, and L43 are then closed. The system includes magnetic lift valves C26, D28, E32, F34, G40, and H42. When experimental fields I, II, III, and IV require drainage, the pump system 13 is shut down and the drainage electromagnetic lift valves A18, B20, C26, D28, E32, F34, G40, and H42 are opened by manipulating the remote control element 44. This allows water from experimental fields I and IV to flow into the irrigation and drainage canal 4, and water from experimental fields II and III to flow into the drainage ditch 1.

[0075] Note: In this invention, the pump system refers to a pumping system consisting of electromechanical equipment with a water pump as its core and supporting buildings. The remote execution control element refers to computer software or application programs that are compatible with the field equipment.

[0076] It should be noted that each experimental plot is equipped with three inlet solenoid lifting valves and two outlet solenoid lifting valves. During operation, the corresponding number of valves can be opened or closed according to the water inflow or drainage requirements of the experimental plot, so as to complete the water inflow or drainage within a specified time and thus achieve precise control of the field water level.

[0077] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A drainage and irrigation system for precise control of field water levels, characterized in that, The system includes a pump system (13), a water supply pipe, a water level gauge, an electromagnetic switch valve assembly, a soil moisture sensor, an inlet electromagnetic lift valve, and a drain electromagnetic lift valve. The pump system (13) delivers water to the experimental field through the water supply pipe. The experimental field is equipped with a flow meter, a water level gauge, an electromagnetic switch valve assembly, a soil moisture sensor, an inlet electromagnetic lift valve, and a drain electromagnetic lift valve. The pump system (13) can be manually and remotely controlled to start and stop simultaneously.

2. The irrigation and drainage system for precise control of field water levels according to claim 1, characterized in that, The flow meter is used to read the amount of water input into the experimental field by the pump system (13); The inlet solenoid lifting valve is used to control the water intake of the experimental field; The water level gauge is used to monitor the water level information of the experimental field; The soil moisture sensor is used to monitor soil moisture information in the experimental field; The solenoid valve for drainage is used to control the drainage of the experimental field; The electromagnetic switch valve assembly is used to control the opening and closing of the water supply pipe in the irrigation experimental field.

3. The irrigation and drainage system for precise control of field water levels according to claim 1, characterized in that, The inlet solenoid valve is equipped with a manual switch, a solar panel, and a signal source transmitting device. The manual switch is used to open and close the inlet solenoid valve manually. The signal source transmitting device and the signal source receiving device are connected to a remote execution control element, which is used to open and close the inlet solenoid valve. The solar panel is used to provide power.

4. The irrigation and drainage system for precise control of field water levels according to claim 1, characterized in that, The water level gauge is equipped with a solar panel, a signal source transmitting device, and a scale. The solar panel provides power. The signal source transmitting device and the signal source receiving device are connected to a remote execution control element. By operating the remote execution control element, the water level is intelligently compared with the set upper limit value to determine whether the corresponding experimental field needs to be drained. The scale on the water level gauge is used to manually read the water level information in the experimental field to ensure the accuracy and reliability of the acquired data.

5. The irrigation and drainage system for precise control of field water levels according to claim 1, characterized in that, The soil moisture sensor is equipped with a solar panel, a vertical power transmission rod, and a signal source transmitting device. The vertical power transmission rod is used to transmit the electrical energy generated by the solar panel to the soil moisture sensor. The signal source transmitting device and the signal source receiving device are connected to a remote execution control element. By operating the remote execution control element, the sensor intelligently compares the value with the set lower limit value to determine whether the corresponding experimental field needs irrigation.

6. The irrigation and drainage system for precise control of field water levels according to claim 1, characterized in that, The drain solenoid lifting valve is equipped with a solar panel, a manual switch, and a signal source transmitting device; the solar panel is used to provide power; the manual switch enables the drain solenoid lifting valve to be opened and closed manually; the signal source transmitting device and the signal source receiving device are connected to a remote execution control element, and the drain solenoid lifting valve can be intelligently opened and closed by operating the remote execution control element.

7. The irrigation and drainage system for precise control of field water levels according to claim 1, characterized in that, The electromagnetic switch valve assembly is equipped with a solar panel and an electromagnetic switch valve; the electromagnetic switch valve is used to control the flow direction of water in the water supply pipe; the solar panel is used to provide electricity.

8. The method for implementing a precise irrigation and drainage system for controlling field water levels according to any one of claims 1 to 7, characterized in that, Set upper and lower limits for irrigation in the experimental fields, specifically... When the water level in the experimental field is maintained at a water layer, the water level is read using a water level gauge and the water level information is transmitted through a signal source transmitting device. The signal source receiving device obtains the relevant data and compares it with the set upper limit of irrigation to determine whether the water level in the field has exceeded the upper limit. If the water level in the experimental field has exceeded the set upper limit of irrigation, the drainage solenoid lifting valve is opened by operating the remote execution control element until the water level in the field is controlled to the relevant position, and then the drainage solenoid lifting valve is closed. When the water level in the experimental field is kept below the water level, the soil moisture sensor sends soil moisture information through the signal source transmitting device. The signal source receiving device obtains the relevant data and compares it with the set lower limit of irrigation to determine whether the soil moisture content has fallen below the lower limit. If the soil moisture content has fallen below the set lower limit of irrigation, the pump system (13) is turned on by operating the remote execution control element, and the inlet electromagnetic lifting valve is turned on at the same time. The data in the flow meter is read until the field water level is controlled to the relevant position, and then the pump system (13) and the inlet electromagnetic lifting valve are turned off.

9. The implementation method according to claim 8, characterized in that, The experimental fields include Experimental Field I, Experimental Field II, Experimental Field III, and Experimental Field IV; When only test field I needs irrigation, the pump system (13), electromagnetic switch valve assembly C (30), inlet electromagnetic lift valve G (31), inlet electromagnetic lift valve H (33), and inlet electromagnetic lift valve I (35) are turned on by operating the remote execution control element (44); electromagnetic switch valve assembly A (8), drainage electromagnetic lift valve E (32), drainage electromagnetic lift valve F (34), and electromagnetic switch valve assembly D (36) are turned off; when only test field I needs drainage, the pump system (13), drainage electromagnetic lift valve E (32), and drainage electromagnetic lift valve F (34) are turned on by operating the remote execution control element (44); so that the water in test field I flows into the irrigation and drainage channel (4); When only test field II needs irrigation, the pump system (13) is turned on by operating the remote control element (44), the electromagnetic switch valve assembly A (8) is turned on, and the water inlet electromagnetic lift valves A (17), B (19) and C (21) are turned on; the drainage electromagnetic lift valves A (18), B (20), B (22) and C (30) are turned off; when only test field II needs drainage, the pump system (13) is turned off by operating the remote control element (44), and the drainage electromagnetic lift valves A (18) and B (20) are turned on; so that the water in test field II flows into the drainage ditch (1). When only test field III needs irrigation, the pump system (13) is turned on by manipulating the remote control element (44), the electromagnetic switch valve assembly A (8) and electromagnetic switch valve assembly B (22) are turned on, and the water inlet electromagnetic lift valves D (25), E (27) and F (29) are turned on; the electromagnetic switch valve assembly C (30) is turned off, and the water inlet electromagnetic lift valves A (17), B (19) and C (21) are turned off, and the drainage electromagnetic lift valves C (26) and D (28) are turned off; when only test field III needs drainage, the pump system (13) is turned off by manipulating the remote control element (44), and the drainage electromagnetic lift valves C (26) and D (28) are turned on; so that the water in test field III flows into the drainage ditch (1); When only test field IV needs irrigation, the pump system (13) is turned on by manipulating the remote control element (44), the electromagnetic switch valve assembly C (30) and the electromagnetic switch valve assembly D (36) are turned on, and the water inlet electromagnetic lift valves J (39), K (41) and L (43) are turned on; the electromagnetic switch valve assembly A (8) is turned off, the water inlet electromagnetic lift valves G (31), H (33) and I (35) are turned off, and the drainage electromagnetic lift valves G (40) and H (42) are turned off; when only test field IV needs drainage, the pump system (13) is turned off by manipulating the remote control element (44), and the drainage electromagnetic lift valves H (42) are turned on; so that the water in test field IV flows into the irrigation and drainage channel (4); When experimental fields I and II require irrigation, the pump system (13) is activated by manipulating the remote control element (44), which activates the electromagnetic switch valve assembly A (8), electromagnetic switch valve assembly C (30), and inlet electromagnetic lift valves A (17), B (19), C (21), G (31), H (33), and I (35); and the drain electromagnetic lift valves A (18), B (20), and I (35) are closed. E(32) and drainage solenoid lifting valve F(34), close solenoid switch valve assembly B(22) and solenoid switch valve assembly D(36); when experimental field I and experimental field II need to drain water, by manipulating the remote execution control element (44), the pump system (13) is closed, and drainage solenoid lifting valve A(18), drainage solenoid lifting valve B(20), drainage solenoid lifting valve E(32) and drainage solenoid lifting valve F(34) are opened; so that the water in experimental field I flows into the irrigation and drainage dual-purpose channel (4), and the water in experimental field II flows into the drainage ditch (1); When experimental fields I and III require irrigation, the pump system (13) is activated by manipulating the remote control element (44), which activates electromagnetic switch valve assembly A (8), electromagnetic switch valve assembly B (22), and electromagnetic switch valve assembly C (30), and opens the inlet electromagnetic lift valves D (25), E (27), F (29), G (31), H (33), and I (35); the inlet electromagnetic lift valves A17, B19, and C21 are closed, and the drain electromagnetic lift valve C (2) is closed. 6) Drainage solenoid lifting valves D (28), E (32), and F (34) are closed, and solenoid switch valve assembly D (36) is closed. When test field I and test field III need to drain water, the pump system (13) is closed by manipulating the remote execution control element (44), and drainage solenoid lifting valves C (26), D (28), E (32), and F (34) are opened. This allows water in test field I to flow into the irrigation and drainage channel (4), and water in test field III to flow into the drainage ditch (1). When experimental fields I and IV need irrigation, the pump system (13) is turned on by operating the remote control element (44), and the electromagnetic switch valve assembly C (30) and electromagnetic switch valve assembly D (36) are turned on, as well as the inlet electromagnetic lift valves G (31), H (33), I (35), J (39), K (41), and L (43) are turned on; the electromagnetic switch valve assembly A (8) is turned off, and the drainage electromagnetic lift valve is turned off. Valve E (32), drainage solenoid lifting valve F (34), drainage solenoid lifting valve G (40) and drainage solenoid lifting valve H (42); when experimental field (1) and experimental field IV need to drain water, the pump system 13 is shut down by operating the remote execution control element (44), and the drainage solenoid lifting valves E (32), F (34), G (40) and H (42) are opened; so that the water in experimental field I and experimental field IV flows into the irrigation and drainage dual-purpose channel (4); When test fields II and III require irrigation, the pump system (13) is activated by manipulating the remote control element (44), which activates the electromagnetic switch valve assembly A (8), electromagnetic switch valve assembly B (22), and inlet electromagnetic lift valves A (17), B (19), C (21), D (25), E (27), and F (29); and the drain electromagnetic lift valves A (18) and B (29) are activated. Valve B (20), drainage solenoid lift valve C (26) and drainage solenoid lift valve D (28), and close the solenoid switch valve assembly C (30); when test field II and test field III need to drain water, by operating the remote execution control element (44), the pump system (13) is closed, and drainage solenoid lift valve A (18), drainage solenoid lift valve B (20), drainage solenoid lift valve C (26) and drainage solenoid lift valve D (28) are opened; so that the water in test field II and test field III flows into the drainage ditch (1); When test fields II and IV require irrigation, the pump system (13) is activated by manipulating the remote control element (44), which activates electromagnetic switch valve assembly A (8), electromagnetic switch valve assembly C (30), and electromagnetic switch valve assembly D (36), and opens the inlet electromagnetic lift valves A (17), B (19), C (21), J (39), K (41), and L (43); the inlet electromagnetic lift valves G (31), H (33), and I (35) are closed; and the drainage valves are closed. Water electromagnetic lifting valve A (18), drainage electromagnetic lifting valve B (20), drainage electromagnetic lifting valve G (40) and drainage electromagnetic lifting valve H (42), and closing electromagnetic switch valve assembly B (22); when experimental field II and experimental field IV need to drain water, by manipulating the remote execution control element (44), the pump system (13) is closed, drainage electromagnetic lifting valve B (20), drainage electromagnetic lifting valve G (40) and drainage electromagnetic lifting valve H (42) are opened, and electromagnetic switch valve assembly B (22) is closed; so that the water in experimental field II flows into the drainage ditch (1), and the water in experimental field IV flows into the irrigation and drainage dual-purpose channel (4); When test fields III and IV need irrigation, the pump system (13) is turned on by operating the remote control element (44), and the electromagnetic switch valve assembly A (8), electromagnetic switch valve assembly B (22), electromagnetic switch valve assembly C (30) and electromagnetic switch valve assembly D (36) are turned on, and the water inlet electromagnetic lift valves D (25), E (27), F (29), J (39), K (41) and L (43) are turned on; and the water inlet electromagnetic lift valves A (17), B (19), C (21) and G (23) are turned off. (31) The inlet solenoid lifting valve H (33) and the inlet solenoid lifting valve I (35) are closed, and the drain solenoid lifting valve C (26), the drain solenoid lifting valve D (28), the drain solenoid lifting valve G (40) and the drain solenoid lifting valve H (42) are closed. When experimental field III and experimental field IV need to drain water, the pump system (13) is closed by operating the remote execution control element (44), and the drain solenoid lifting valve C (26), the drain solenoid lifting valve D (28), the drain solenoid lifting valve G (40) and the drain solenoid lifting valve H (42) are opened. The water in experimental field III flows into the drainage ditch (1), and the water in experimental field IV flows into the irrigation and drainage channel (4). When experimental fields I, II, and III require irrigation, the pump system (13) is activated by manipulating the remote control element (44), opening electromagnetic switch valve assemblies A (8), B (22), and C (30), and opening the inlet electromagnetic lift valves A (17), B (19), C (21), D (25), E (27), F (29), G (31), H (33), and I (35); electromagnetic switch valve assembly D (36) is closed, and drainage electromagnetic lift valves A (18) and B (29) are closed. 0), Drainage electromagnetic lifting valve C (26), Drainage electromagnetic lifting valve D (28), Drainage electromagnetic lifting valve E (32) and Drainage electromagnetic lifting valve F (34); When experimental field I, experimental field II and experimental field III need to drain water, the pump system (13) is shut down by operating the remote execution control element (44), and drainage electromagnetic lifting valves A (18), B (20), C (26), D (28), E (32) and F (34) are opened; so that the water in experimental field I flows into the irrigation and drainage channel (4), and the water in experimental field II and experimental field III flows into the drainage ditch (1); When experimental fields I, II, and IV require irrigation, the pump system (13) is activated by manipulating the remote control element (44), opening electromagnetic switch valve assembly A (8), electromagnetic switch valve assembly C (30), and electromagnetic switch valve assembly D (36), and opening the inlet electromagnetic lift valves A (17), B (19), C (21), G (31), H (33), I (35), J (39), K (41), and L (43); electromagnetic switch valve assembly B (22) is closed, and drainage electromagnetic lift valves A (18) and L (43) are closed. Electromagnetic lifting valve B (20), drainage electromagnetic lifting valve E (32), drainage electromagnetic lifting valve F (34), drainage electromagnetic lifting valve G (40) and drainage electromagnetic lifting valve H (42); when experimental field I, experimental field II and experimental field IV need to drain water, the pump system (13) is shut down by operating the remote execution control element (44), and drainage electromagnetic lifting valves A (18), B (20), E (32), F (34), G (40) and H (42) are opened; so that the water in experimental field I and experimental field IV flows into the irrigation and drainage dual-purpose channel (4), and the water in experimental field II flows into the drainage ditch (1); When experimental fields I, III, and IV require irrigation, the pump system (13) is activated by manipulating the remote control element (44), opening electromagnetic switch valve assembly A (8), electromagnetic switch valve assembly B (22), electromagnetic switch valve assembly C (30), and electromagnetic switch valve assembly D (36), and opening the inlet electromagnetic lift valves D (25), E (27), F (29), G (31), H (33), I (35), J (39), K (41), and L (43); and closing the inlet electromagnetic lift valves A (17), B (19), and C (21). ); Close the drainage solenoid lifting valves C (26), D (28), E (32), F (34), G (40), and H (42); When experimental fields I, III, and IV need to drain water, the pump system (13) is shut down by manipulating the remote control element (44), and the drainage solenoid lifting valves C (26), D (28), E (32), F (34), G (40), and H (42) are opened; so that the water in experimental fields I and IV flows into the irrigation and drainage channel (4), and the water in experimental field III flows into the drainage ditch (1); When experimental fields II, III, and IV require irrigation, the pump system (13) is activated by manipulating the remote control element (44), opening electromagnetic switch valve assembly A (8), electromagnetic switch valve assembly B (22), electromagnetic switch valve assembly C (30), and electromagnetic switch valve assembly D (36), and opening water inlet electromagnetic lift valves A (17), B (19), C (21), D (25), E (27), F (29), J (39), K (41), and L (43); closing water inlet electromagnetic lift valves G (31), H (33), and I (35), and closing the drainage valve. Water electromagnetic lifting valve A (18), drainage electromagnetic lifting valve B (20), drainage electromagnetic lifting valve C (26), drainage electromagnetic lifting valve D (28), drainage electromagnetic lifting valve G (40) and drainage electromagnetic lifting valve H (42); when experimental fields II, III and IV need to drain water, the pump system (13) is shut down by operating the remote execution control element (44), and the drainage electromagnetic lifting valves A (18), B (20), C (26), D (28), G (40) and H (42) are opened; so that the water in experimental fields II and III flows into the drainage ditch (1), and the water in experimental field IV flows into the irrigation and drainage dual-purpose channel (4); When experimental fields I, II, III, and IV require irrigation, the pump system (13) is activated by manipulating the remote control element (44), which activates electromagnetic switch valve assembly A (8), electromagnetic switch valve assembly B (22), electromagnetic switch valve assembly C (30), and electromagnetic switch valve assembly D (36), and opens the inlet electromagnetic lift valves A (17), B (19), C (21), D (25), E (27), F (29), G (31), H (33), I (35), J (39), K (41), and L (43); and closes the drain electromagnetic lift valves A (18), B (20), and D (43). Water electromagnetic lifting valve C (26), drainage electromagnetic lifting valve D (28), drainage electromagnetic lifting valve E (32), drainage electromagnetic lifting valve F (34), drainage electromagnetic lifting valve G (40) and drainage electromagnetic lifting valve H (42); when experimental field I, experimental field II, experimental field III and experimental field IV need to drain water, the pump system (13) is shut down by operating the remote execution control element (44), and drainage electromagnetic lifting valves A (18), B (20), C (26), D (28), E (32), F (34), G (40) and H (42) are opened; so that the water in experimental field I and experimental field IV flows into the irrigation and drainage channel (4), and the water in experimental field II and experimental field III flows into the drainage ditch (1).

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