Irrigation and drainage system capable of accurately controlling field water level and implementation method of irrigation and drainage system

Abstract

The invention discloses an irrigation and drainage system capable of accurately controlling the field water level and an implementation method thereof, and relates to the field of water-saving irrigation. Comprising a water pump controller, a signal source transmitter, a pump system, a water conveying pipe, a three-way connector, a flow meter, a water level gauge, an electromagnetic switch valve assembly, a soil moisture sensor, an irrigation and drainage dual-purpose channel, a water inlet electromagnetic lifting valve, a drainage electromagnetic lifting valve, a remote execution control element, a signal source receiver, a test field I, a test field II, a test field III and a test field IV. Wherein the pump system is a core irrigation element, the water level gauge is used for monitoring water level information in a test field, the soil moisture sensor is used for monitoring soil moisture information in the test field, the flow meter is used for reading water volume data of water lifted by the pump system, and the water inlet electromagnetic lifting valve is used for realizing irrigation in the test field. And the drainage electromagnetic lifting valve is used for realizing drainage in the test field. The irrigation and drainage system can achieve accurate control over the field water level through manual operation and remote control at the same time.

Description

Technical Field

[0001] The present invention relates to the field of water-saving irrigation, and in particular to an irrigation and drainage system for accurately controlling field water levels and an implementation method thereof. Background Art

[0002] In the growth process of agricultural crops, especially rice, according to the definition and standards of its growth period, the growth process can be divided into seedling stage, greening stage, tillering stage, jointing stage, panicle stage, panicle growth stage and fruiting stage. These growth stages have different water requirements, and scientific and reasonable water management is the key to ensure the healthy growth of rice. When rice needs water, insufficient water in the field will lead to insufficient nutrients in the crop, thereby affecting growth and development and reducing stress resistance; when the crop does not need water, too much water in the field will cause root hypoxia, affect rice fruiting, and even cause diseases. Therefore, precise control of field water level will directly affect the yield and quality of rice, which is related to the economic benefits of agriculture and the livelihoods of farmers.

[0003] However, in many cases, due to inappropriate field water, the yield and quality of rice are often not ideal, which not only causes economic losses to farmers, but also brings many challenges to the construction of high-standard farmland projects. Traditional irrigation management methods often cannot meet the needs of modern agriculture and cannot achieve precise regulation of water, resulting in water waste and low production efficiency. In order to solve this scientific problem, it is necessary to design an irrigation and drainage system for precise control of field water level and its implementation method. The system should be combined with modern technology, such as the Internet of Things, sensors, and automatic control technology, and dynamically adjust irrigation and drainage strategies by real-time monitoring of soil moisture and field water level to achieve efficient use of water resources. This will not only help improve the yield and quality of rice, but also provide strong support for sustainable agricultural development and promote the improvement of farmland ecological environment. Through such technological innovation, my country's agriculture will be able to better cope with various challenges of water shortage and achieve a win-win situation of economic and ecological benefits. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an irrigation and drainage system for accurately controlling the field water level and its implementation method, so as to achieve accurate control of different water layers in farmland irrigation and drainage, solve the problem caused by inappropriate water volume during crop growth, and thus improve the growth effect of crops. In addition, the present invention can also improve the operational reliability of farmland irrigation and drainage, create favorable conditions for efficient management of water resources, and thus improve crop yields and water resource utilization efficiency.

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

[0006] A drainage and irrigation system for accurately controlling field water levels, comprising a pump system, a water pipe, a water level meter, an electromagnetic switch valve assembly, a soil moisture sensor, an inlet electromagnetic lift valve and a drain electromagnetic lift valve; the pump system transports water to an experimental field through the water pipe, and a flow meter, a water level meter, an electromagnetic switch valve assembly, a soil moisture sensor, an inlet electromagnetic lift valve and a drain electromagnetic lift valve are arranged in the experimental field; the pump system can be opened and closed manually and remotely controlled at the same time.

[0007] In the above scheme, the flow meter is used to read the amount of water input into the test field by the pump system;

[0008] The water inlet electromagnetic lift valve is used to control the water inlet of the test field;

[0009] The water level meter is used to monitor the water level information of the test field;

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

[0011] The drainage electromagnetic lift valve is used to control the drainage of the test field;

[0012] The electromagnetic switch valve assembly is used to control the opening and closing of the water pipe for irrigating the test field.

[0013] In the above scheme, the water inlet electromagnetic lift valve is provided with a manual switch, a solar panel and a signal source sending device, wherein the manual switch is used to realize the opening and closing of the water inlet electromagnetic lift valve through manual operation; the signal source sending device and the signal source receiving device are connected to the remote execution control element, and the opening and closing of the water inlet electromagnetic lift valve are realized through the remote execution control element; the solar panel is used to provide electricity.

[0014] In the above scheme, the water level meter is provided with a solar panel, a signal source sending device and scale lines; the solar panel is used to provide electricity; the signal source sending device and the signal source receiving device are connected to the remote execution control element, and the remote execution control element is operated to intelligently compare with the set upper limit value to determine whether the corresponding test field needs to be drained; the scale lines on the water level meter are used to manually read the water level information in the test field to ensure the accuracy and reliability of the acquired data.

[0015] In the above scheme, the soil moisture sensor is provided with a solar panel, a vertical power transmission pole and a signal source sending device; the vertical power transmission pole is used to transmit the electric energy generated by the solar panel to the soil moisture sensor; the signal source sending device and the signal source receiving device are connected to the 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 test field needs to be irrigated.

[0016] In the above scheme, the drainage electromagnetic lift valve is provided with a solar panel, a manual switch and a signal source sending device; the solar panel is used to provide electricity; the manual switch realizes the opening and closing of the drainage electromagnetic lift valve through manual operation, and the signal source sending device and the signal source receiving device are connected to the remote execution control element, and the opening and closing of the drainage electromagnetic lift valve are realized intelligently by operating the remote execution control element.

[0017] In the above scheme, the electromagnetic switch valve assembly is provided 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 pipe; and the solar panel is used to provide electricity.

[0018] The implementation method of the irrigation and drainage system for accurately controlling the field water level, setting the upper and lower limits of the experimental field irrigation, specifically,

[0019] When the water level in the test field maintains a water layer, the field water level is read using a water level meter, and the water level information is sent through a signal source sending device. The signal source receiving device obtains relevant data and compares it with the set upper limit of irrigation to determine whether the field water level has exceeded the upper limit value; if the water level in the test field has exceeded the set upper limit of irrigation, the drainage solenoid lift valve is opened by operating the remote execution control element until the field water level is controlled to the relevant position, and then the drainage solenoid lift valve is closed.

[0020] When the water level in the test field is maintained at a level without a water layer, the soil moisture sensor is used to send soil moisture information through the signal source sending 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 is already lower than the lower limit; if the soil moisture content is already lower than the set lower limit of irrigation, the pump system is turned on by operating the remote execution control element, and the water inlet electromagnetic lift valve is opened at the same time, and 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 water inlet electromagnetic lift valve are closed.

[0021] In the above scheme, the experimental fields include experimental field I, experimental field II, experimental field III and experimental field IV;

[0022] When only the test field I needs to be irrigated, the pump system is turned on by operating the remote execution control element, the electromagnetic switch valve assembly C is turned on, the water inlet electromagnetic lift valve G, the water inlet electromagnetic lift valve H and the water inlet electromagnetic lift valve I are turned on; the electromagnetic switch valve assembly A is turned off, the drainage electromagnetic lift valve E and the drainage electromagnetic lift valve F are turned off, and the electromagnetic switch valve assembly D is turned off; when only the test field I needs to be drained, the pump system is turned off by operating the remote execution control element, and the drainage electromagnetic lift valve E and the drainage electromagnetic lift valve F are turned on; so that the water in the test field I flows into the irrigation and drainage dual-purpose channel;

[0023] When only the experimental field II needs to be irrigated, the pump system is turned on by operating the remote execution control element, the electromagnetic switch valve assembly A is turned on, the water inlet electromagnetic lift valve A, the water inlet electromagnetic lift valve B and the water inlet electromagnetic lift valve C are turned on; the drainage electromagnetic lift valve A and the drainage electromagnetic lift valve B are turned off, and the electromagnetic switch valve assembly B and the electromagnetic switch valve assembly C are turned off; when only the experimental field II needs to be drained, the pump system is turned off by operating the remote execution control element, and the drainage electromagnetic lift valve A and the drainage electromagnetic lift valve B are turned on; so that the water in the experimental field II flows into the drainage ditch;

[0024] When only the test field III needs to be irrigated, the pump system is turned on by operating the remote execution control element, the electromagnetic switch valve assembly A and the electromagnetic switch valve assembly B are turned on, and the water inlet electromagnetic lift valve D, the water inlet electromagnetic lift valve E and the water inlet electromagnetic lift valve F are turned on; the electromagnetic switch valve assembly C is turned off, the water inlet electromagnetic lift valve A, the water inlet electromagnetic lift valve B and the water inlet electromagnetic lift valve C are turned off, and the drainage electromagnetic lift valve C and the drainage electromagnetic lift valve D are turned off; when only the test field III needs to be drained, the pump system is turned off by operating the remote execution control element, and the drainage electromagnetic lift valve C and the drainage electromagnetic lift valve D are turned on; so that the water in the test field III flows into the drainage ditch;

[0025] When only the experimental field IV needs to be irrigated, the pump system is turned on by operating the remote execution control element, the electromagnetic switch valve assembly C and the electromagnetic switch valve assembly D are turned on, and the water inlet electromagnetic lift valve J, the water inlet electromagnetic lift valve K and the water inlet electromagnetic lift valve L are turned on; the electromagnetic switch valve assembly A is turned off, the water inlet electromagnetic lift valve G, the water inlet electromagnetic lift valve H, the water inlet electromagnetic lift valve I are turned off, and the drainage electromagnetic lift valve G, the drainage electromagnetic lift valve and the drainage electromagnetic lift valve H are turned off; when only the experimental field IV needs to be drained, the pump system is turned off by operating the remote execution control element, and the drainage electromagnetic lift valve and the drainage electromagnetic lift valve H are turned on; so that the water in the experimental field IV flows into the irrigation and drainage dual-purpose channel;

[0026] When the experimental field I and the experimental field II need to be irrigated, the pump system is turned on by operating the remote execution control element, the electromagnetic switch valve assembly A and the electromagnetic switch valve assembly C are turned on, the water inlet electromagnetic lift valve A, the water inlet electromagnetic lift valve B, the water inlet electromagnetic lift valve C, the water inlet electromagnetic lift valve G, the water inlet electromagnetic lift valve H and the water inlet electromagnetic lift valve I are turned on; the drainage electromagnetic lift valve A, the drainage electromagnetic lift valve B, the drainage electromagnetic lift valve E and the drainage electromagnetic lift valve F are turned off, and the electromagnetic switch valve assembly B and the electromagnetic switch valve assembly D are turned off; when the experimental field I and the experimental field II need to be drained, the pump system is turned off by operating the remote execution control element, and the drainage electromagnetic lift valve A, the drainage electromagnetic lift valve B, the drainage electromagnetic lift valve E and the drainage electromagnetic lift valve F are turned on; the water in the experimental field I flows into the irrigation and drainage dual-purpose channel, and the water in the experimental field II flows into the drainage ditch;

[0027] When the experimental fields I and III need to be irrigated, the pump system is turned on by operating the remote execution control element, the electromagnetic switch valve assembly A, the electromagnetic switch valve assembly B and the electromagnetic switch valve assembly C are turned on, the water inlet electromagnetic lift valve D, the water inlet electromagnetic lift valve E, the water inlet electromagnetic lift valve F, the water inlet electromagnetic lift valve G, the water inlet electromagnetic lift valve H and the water inlet electromagnetic lift valve I are turned on; the water inlet electromagnetic lift valves A17, B19 and C21 are turned off, the drainage electromagnetic lift valve C, the drainage electromagnetic lift valve D, the drainage electromagnetic lift valve E and the drainage electromagnetic lift valve F are turned off, and the electromagnetic switch valve assembly D is turned off; when the experimental fields I and III need to be drained, the pump system is turned off by operating the remote execution control element, and the drainage electromagnetic lift valve C, the drainage electromagnetic lift valve D, the drainage electromagnetic lift valve E and the drainage electromagnetic lift valve F are turned on; the water in the experimental field I flows into the irrigation and drainage dual-purpose channel, and the water in the experimental field III flows into the drainage ditch;

[0028] When the experimental field I and the experimental field IV need to be irrigated, the pump system is turned on by operating the remote execution control element, the electromagnetic switch valve assembly C and the electromagnetic switch valve assembly D are turned on, and the water inlet electromagnetic lift valve G, the water inlet electromagnetic lift valve H, the water inlet electromagnetic lift valve I, the water inlet electromagnetic lift valve J, the water inlet electromagnetic lift valve K and the water inlet electromagnetic lift valve L are turned on; the electromagnetic switch valve assembly A is turned off, and the drainage electromagnetic lift valve E, the drainage electromagnetic lift valve F, the drainage electromagnetic lift valve G and the drainage electromagnetic lift valve H are turned off; when the experimental field and the experimental field IV need to be drained, the pump system 13 is turned off by operating the remote execution control element, and the drainage electromagnetic lift valve E, the drainage electromagnetic lift valve F, the drainage electromagnetic lift valve G and the drainage electromagnetic lift valve H are turned on; so that the water in the experimental field I and the experimental field IV flows into the irrigation and drainage dual-purpose channel;

[0029] When the experimental fields II and III need to be irrigated, the pump system is turned on by operating the remote execution control element, the electromagnetic switch valve assembly A and the electromagnetic switch valve assembly B are turned on, and the water inlet electromagnetic lift valve A, the water inlet electromagnetic lift valve B, the water inlet electromagnetic lift valve C, the water inlet electromagnetic lift valve D, the water inlet electromagnetic lift valve E and the water inlet electromagnetic lift valve F are turned on; the drainage electromagnetic lift valve A, the drainage electromagnetic lift valve B, the drainage electromagnetic lift valve C and the drainage electromagnetic lift valve D are turned off, and the electromagnetic switch valve assembly C is turned off; when the experimental fields II and III need to be drained, the pump system is turned off by operating the remote execution control element, and the drainage electromagnetic lift valve A, the drainage electromagnetic lift valve B, the drainage electromagnetic lift valve C and the drainage electromagnetic lift valve D are turned on; so that the water in the experimental fields II and III flows into the drainage ditch;

[0030] When the experimental fields II and IV need to be irrigated, the pump system is turned on by operating the remote execution control element, and the electromagnetic switch valve assembly A, the electromagnetic switch valve assembly C and the electromagnetic switch valve assembly D are turned on, and the water inlet electromagnetic lift valve A, the water inlet electromagnetic lift valve B, the water inlet electromagnetic lift valve C, the water inlet electromagnetic lift valve J, the water inlet electromagnetic lift valve K and the water inlet electromagnetic lift valve L are turned on; the water inlet electromagnetic lift valve G, the water inlet electromagnetic lift valve H and the water inlet electromagnetic lift valve I are turned off; the drainage electromagnetic lift valve A, the drainage electromagnetic lift valve B, the drainage electromagnetic lift valve G and the drainage electromagnetic lift valve H are turned off, and the electromagnetic switch valve assembly B is turned off; when the experimental fields II and IV need to be drained, the pump system is turned off by operating the remote execution control element, and the drainage electromagnetic lift valve B, the drainage electromagnetic lift valve G and the drainage electromagnetic lift valve H are turned on, and the electromagnetic switch valve assembly B is turned off; the water in the experimental field II flows into the drainage ditch, and the water in the experimental field IV flows into the irrigation and drainage dual-purpose channel;

[0031] When the experimental fields III and IV need to be irrigated, the pump system is turned on by operating the remote execution control element, and the electromagnetic switch valve assembly A, the electromagnetic switch valve assembly B, the electromagnetic switch valve assembly C and the electromagnetic switch valve assembly D are turned on; the water inlet electromagnetic lift valve D, the water inlet electromagnetic lift valve E, the water inlet electromagnetic lift valve F, the water inlet electromagnetic lift valve J, the water inlet electromagnetic lift valve K and the water inlet electromagnetic lift valve L are turned on; the water inlet electromagnetic lift valve A, the water inlet electromagnetic lift valve B, the water inlet electromagnetic lift valve C, the water inlet electromagnetic lift valve G, the water inlet electromagnetic lift valve H and the water inlet electromagnetic lift valve I are turned off, and the drainage electromagnetic lift valve C, the drainage electromagnetic lift valve D, the drainage electromagnetic lift valve G and the drainage electromagnetic lift valve H are turned off; when the experimental fields III and IV need to be drained, the pump system is turned off by operating the remote execution control element, and the drainage electromagnetic lift valve C, the drainage electromagnetic lift valve D, the drainage electromagnetic lift valve G and the drainage electromagnetic lift valve H are turned on; the water in the experimental field III flows into the drainage ditch, and the water in the experimental field IV flows into the irrigation and drainage dual-purpose channel;

[0032] When the experimental fields I, II and III need to be irrigated, the pump system is turned on by operating the remote execution control element, the electromagnetic switch valve components A, B and the electromagnetic switch valve component C are turned on, and the water inlet electromagnetic lift valve A, the water inlet electromagnetic lift valve B, the water inlet electromagnetic lift valve C, the water inlet electromagnetic lift valve D, the water inlet electromagnetic lift valve E, the water inlet electromagnetic lift valve F, the water inlet electromagnetic lift valve G, the water inlet electromagnetic lift valve H and I are turned on; the electromagnetic switch valve component D is turned off, and the drainage electromagnetic lift valve A, the drainage electromagnetic lift valve B, the drainage electromagnetic lift valve C, the drainage electromagnetic lift valve D, the drainage electromagnetic lift valve E and the drainage electromagnetic lift valve F are turned off; when the experimental fields I, II and III need to be drained, the pump system is turned off by operating the remote execution control element, and the drainage electromagnetic lift valve A, the drainage electromagnetic lift valve B, the drainage electromagnetic lift valve C, the drainage electromagnetic lift valve D, the drainage electromagnetic lift valve E and the drainage electromagnetic lift valve F are turned on; the water in the experimental field I flows into the irrigation and drainage dual-purpose channel, and the water in the experimental fields II and III flows into the drainage ditch;

[0033] When the experimental fields I, II and IV need to be irrigated, the pump system is started by operating the remote execution control element, the electromagnetic switch valve assembly A, the electromagnetic switch valve assembly C and the electromagnetic switch valve assembly D are opened, the water inlet electromagnetic lift valve A, the water inlet electromagnetic lift valve B, the water inlet electromagnetic lift valve C, the water inlet electromagnetic lift valve G, the water inlet electromagnetic lift valve H, the water inlet electromagnetic lift valve I, the water inlet electromagnetic lift valve J, the water inlet electromagnetic lift valve K and the water inlet electromagnetic lift valve L are opened; the electromagnetic switch valve assembly B is closed, and the drainage electromagnetic lift valve A, the drainage electromagnetic lift valve A down valve B, drainage electromagnetic lift valve E, drainage electromagnetic lift valve F, drainage electromagnetic lift valve G and drainage electromagnetic lift valve H; when the experimental field I, the experimental field II and the experimental field IV need to be drained, the pump system is turned off by operating the remote execution control element, and the drainage electromagnetic lift valve A, the drainage electromagnetic lift valve B, the drainage electromagnetic lift valve E, the drainage electromagnetic lift valve F, the drainage electromagnetic lift valve G and the drainage electromagnetic lift valve H are opened; the water in the experimental field I and the experimental field IV flows into the irrigation and drainage dual-purpose channel, and the water in the experimental field II flows into the drainage ditch;

[0034] When the experimental fields I, III and IV need to be irrigated, the pump system is started by operating the remote execution control element, and the electromagnetic switch valve assembly A, the electromagnetic switch valve assembly B, the electromagnetic switch valve assembly C and the electromagnetic switch valve assembly D are opened; the water inlet electromagnetic lift valve D, the water inlet electromagnetic lift valve E, the water inlet electromagnetic lift valve F, the water inlet electromagnetic lift valve G, the water inlet electromagnetic lift valve H, the water inlet electromagnetic lift valve I, the water inlet electromagnetic lift valve J, the water inlet electromagnetic lift valve K and the water inlet electromagnetic lift valve L are opened; the water inlet electromagnetic lift valve A, the water inlet electromagnetic lift valve B and the water inlet electromagnetic lift valve C are closed; the drainage is closed. water solenoid lift valve C, drainage solenoid lift valve D, drainage solenoid lift valve E, drainage solenoid lift valve F, drainage solenoid lift valve G and drainage solenoid lift valve H; when the test field I, the test field III and the test field IV need to be drained, the pump system is turned off by operating the remote execution control element, and the drainage solenoid lift valve C, the drainage solenoid lift valve D, the drainage solenoid lift valve E, the drainage solenoid lift valve F, the drainage solenoid lift valve G and the drainage solenoid lift valve H are turned on; the water in the test field I and the test field IV flows into the irrigation and drainage dual-purpose channel, and the water in the test field III flows into the drainage ditch;

[0035] When the experimental fields II, III and IV need to be irrigated, the pump system is started by operating the remote execution control element, and the electromagnetic switch valve assembly A, the electromagnetic switch valve assembly B, the electromagnetic switch valve assembly C and the electromagnetic switch valve assembly D are opened; the water inlet electromagnetic lift valve A, the water inlet electromagnetic lift valve B, the water inlet electromagnetic lift valve C, the water inlet electromagnetic lift valve D, the water inlet electromagnetic lift valve E, the water inlet electromagnetic lift valve F, the water inlet electromagnetic lift valve J, the water inlet electromagnetic lift valve K and the water inlet electromagnetic lift valve L are opened; the water inlet electromagnetic lift valve G, the water electromagnetic lift valve H and the water electromagnetic lift valve I are closed, and the drainage electromagnetic lift valve is closed. Valve A, drainage electromagnetic lift valve B, drainage electromagnetic lift valve C, drainage electromagnetic lift valve D, drainage electromagnetic lift valve G and drainage electromagnetic lift valve H; when the experimental field II, the experimental field III and the experimental field IV need to be drained, the pump system is turned off by operating the remote execution control element, and the drainage electromagnetic lift valve drainage electromagnetic lift valve A, drainage electromagnetic lift valve B, drainage electromagnetic lift valve C, drainage electromagnetic lift valve D, drainage electromagnetic lift valve G and drainage electromagnetic lift valve H are opened; the water in the experimental field II and the experimental field III flows into the drainage ditch, and the water in the experimental field IV flows into the irrigation and drainage dual-purpose channel;

[0036] When the experimental fields I, II, III and IV need to be irrigated, the pump system is started by operating the remote execution control element, and the electromagnetic switch valve assembly A, the electromagnetic switch valve assembly B, the electromagnetic switch valve assembly C and the electromagnetic switch valve assembly D are opened; the water inlet electromagnetic lift valve A, the water inlet electromagnetic lift valve B, the water inlet electromagnetic lift valve C, the water inlet electromagnetic lift valve D, the water inlet electromagnetic lift valve E, the water inlet electromagnetic lift valve F, the water inlet electromagnetic lift valve G, the water inlet electromagnetic lift valve H, the water inlet electromagnetic lift valve I, the water inlet electromagnetic lift valve J, the water inlet electromagnetic lift valve K and the water inlet electromagnetic lift valve L are opened; the drainage electromagnetic lift valve A, the drainage electromagnetic lift valve B, the drainage electromagnetic lift valve Down-down valve C, drainage solenoid lift valve D, drainage solenoid lift valve E, drainage solenoid lift valve F, drainage solenoid lift valve G and drainage solenoid lift valve H; when experimental field I, experimental field II, experimental field III and experimental field IV need to be drained, the pump system is closed by operating the remote execution control element, and the drainage solenoid lift valve A, drainage solenoid lift valve B, drainage solenoid lift valve C, drainage solenoid lift valve D, drainage solenoid lift valve E, drainage solenoid lift valve F, drainage solenoid lift valve G and drainage solenoid lift valve H are opened; the water in the experimental field I and the experimental field IV flows into the irrigation and drainage channel, and the water in the experimental field II and the experimental field III flows into the drainage ditch.

[0037] Beneficial effects of the invention: The irrigation and drainage system of the invention has a simple structure, is easy to operate, and has high precision. It can be manually operated and remotely controlled online, and can simultaneously realize manual and remote control of the opening and closing of various key components in the irrigation and drainage system for accurately controlling the field water level, thereby ensuring the reliability of the system operation, and providing a system and implementation method for accurately controlling the field water level. In short, the irrigation and drainage system for accurately controlling the field water level not only improves the level of intelligence in agricultural production through efficient technical means, but also provides strong support for sustainable agricultural development. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Schematic diagram of the irrigation and drainage system for precise control of field water levels;

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

[0040] Figure 3 for Figure 1 Middle A-direction view;

[0041] Figure 4 for Figure 1 Center B view.

[0042] Reference numerals:

[0043] 1-drainage ditch, 2-soil moisture sensor A, 3-water level meter A, 4-dual-purpose irrigation and drainage channel, 5-ninety-degree elbow, 6-soil moisture sensor B, 7-water level meter B, 8-electromagnetic switch valve assembly A, 9-flow meter A, 10-flow meter B, 11-three-way connector A, 12-water pipe, 13-pump system, 14-signal source sending device A, 15-water pump controller, 16-three-way connector B, 17-water inlet electromagnetic lift valve A, 18-drainage electromagnetic lift valve A, 19-water inlet electromagnetic lift valve B, 20-drainage electromagnetic lift valve B, 21-water inlet electromagnetic lift valve C, 22-electromagnetic switch valve assembly B, 23-soil moisture sensor C, 24-water level meter C, 25-water inlet electromagnetic lift valve D, 26-drainage electromagnetic lift valve C, 27-water inlet electromagnetic lift valve E, 28-drainage electromagnetic lift valve D, 29-water inlet electromagnetic lift valve F, 30-electromagnetic switch valve assembly C, 31-water inlet electromagnetic lift valve G, 32-drainage electromagnetic lift valve E, 33-water inlet electromagnetic lift valve H, 34-drainage electromagnetic lift valve F, 35 -water inlet electromagnetic lift valve I, 36-electromagnetic switch valve assembly D, 37-soil moisture sensor D, 38-water level meter D, 39-water inlet electromagnetic lift valve J, 40-drainage electromagnetic lift valve G, 41-water inlet electromagnetic lift valve K, 42-drainage electromagnetic lift valve H, 43-water inlet electromagnetic lift valve L, 44-remote execution control element, 45-signal source receiving device, 46-solar panel A, 47-solar panel B, 48-vertical power transmission rod, 49-solar panel C, 50-signal source sending device B, 51- Manual switch A, 52-solar panel D, 53-signal source sending device C, 54-manual switch B, 55-signal source sending device D, 56-drainage channel, 57-drainage outlet, 58-field water level, 59-farmland ground, 60-signal source sending device E, 61-water level gauge A scale line, 62-water level gauge A fixing rivet, 63. Water level gauge A support platform, 64-energy dissipation pool, 65-water inlet outlet, 66-water inlet channel, 67. Solar panel E, 68-electromagnetic switch valve, 69-signal source sending device F. DETAILED DESCRIPTION

[0044] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Combined with Figure 1 and Figure 2As shown, an irrigation and drainage system for accurately controlling field water level includes a water pump controller 15, a signal source sending device A14, a signal source sending device B50, a signal source sending device C53, a signal source sending device D55, a signal source sending device E60 and a signal source sending device F69, a pump system 13, a water pipe 12, a three-way connector A11, a three-way connector B16, a flow meter A9, a flow meter B10, a water level meter A3, a water level meter B7, a water level meter C24 and a water level meter D38, an electromagnetic switch valve assembly A8, an electromagnetic switch valve assembly B22, an electromagnetic switch valve assembly C30 and an electromagnetic switch valve assembly D36, a soil moisture sensor A2, a soil moisture sensor B6, a soil moisture sensor C23 and a soil moisture sensor D37, an irrigation and drainage dual-purpose channel 4, and a water inlet electromagnetic Lift valve A17, water inlet solenoid lift valve B19, water inlet solenoid lift valve C21, water inlet solenoid lift valve D25, water inlet solenoid lift valve E27, water inlet solenoid lift valve F29, water inlet solenoid lift valve G31, water inlet solenoid lift valve H33, water inlet solenoid lift valve I35, water inlet solenoid lift valve J39, water inlet solenoid lift valve K41 and water inlet solenoid lift valve L43, drain solenoid lift valve A18, drain solenoid lift valve B20, drain solenoid lift valve C26, drain solenoid lift valve D28, drain solenoid lift valve E32, drain solenoid lift valve F34, drain solenoid lift valve G40 and drain solenoid lift valve H42, remote execution control element 44, signal source receiving 45, experimental field I, experimental field II, experimental field III, experimental field IV and other parts.

[0048] The pump system 13 is the core irrigation component. The signal source sending device A14 is connected to the remote execution control component 44 with the signal source receiving device 45. The pump system 13 is intelligently turned on and off by operating the remote execution control component 44. When the pump system 13 is turned on, water is delivered through the water delivery pipe 12. The function of the water pump controller 15 is to turn on and off the pump system 13 through manual operation. The irrigation and drainage system can simultaneously realize manual and remote control of the opening and closing of the pump system 13, thereby ensuring the reliability of the system operation.

[0049] Flowmeter A9 and flowmeter B10 are used to read the water volume data of the water source provided by the pump system 13 entering the experimental field I, experimental field II, experimental field III, and experimental field IV. The data measured by flowmeter A9 and flowmeter B10 can be compared with the values ​​measured by water level meter A3, water level meter B7, water level meter C24, and water level meter D38, respectively, and the product of the area of ​​experimental field I, experimental field II, experimental field III, and experimental field IV multiplied by the irrigation coefficient, so as to verify the accuracy of the experimental data and ensure the accuracy and reliability of the irrigation and drainage system in achieving precise control of the field water level.

[0050] The water inlet solenoid lift valve A17, the water inlet solenoid lift valve B19, the water inlet solenoid lift valve C21, the water inlet solenoid lift valve D25, the water inlet solenoid lift valve E27, the water inlet solenoid lift valve F29, the water inlet solenoid lift valve G31, the water inlet solenoid lift valve H33, the water inlet solenoid lift valve I35, the water inlet solenoid lift valve J39, the water inlet solenoid lift valve K41 and the water inlet solenoid lift valve L43 are provided with a manual switch A51, a solar panel D52, a signal source sending device C53, an energy dissipation pool 64, a water inlet outlet 65, a water inlet channel 66 and other components. The functions of the water inlet solenoid lift valve A17, water inlet solenoid lift valve B19, water inlet solenoid lift valve C21, water inlet solenoid lift valve D25, water inlet solenoid lift valve E27, water inlet solenoid lift valve F29, water inlet solenoid lift valve G31, water inlet solenoid lift valve H33, water inlet solenoid lift valve I35, water inlet solenoid lift valve J39, water inlet solenoid lift valve K41 and water inlet solenoid lift valve L43 are used to control the water inlet function in experimental field I, experimental field II, experimental field III and experimental field IV respectively. The function of the manual switch A51 is to realize the opening and closing of the water inlet electromagnetic lift valve A17, water inlet electromagnetic lift valve B19, water inlet electromagnetic lift valve C21, water inlet electromagnetic lift valve D25, water inlet electromagnetic lift valve E27, water inlet electromagnetic lift valve F29, water inlet electromagnetic lift valve G31, water inlet electromagnetic lift valve H33, water inlet electromagnetic lift valve I35, water inlet electromagnetic lift valve J39, water inlet electromagnetic lift valve K41, and water inlet electromagnetic lift valve L43 through manual operation. In this way, the system can realize the opening and closing of the water inlet electromagnetic lift valve A17, water inlet electromagnetic lift valve B19, water inlet electromagnetic lift valve C21, water inlet electromagnetic lift valve D25, water inlet electromagnetic lift valve E27, water inlet electromagnetic lift valve F29, water inlet electromagnetic lift valve G31, water inlet electromagnetic lift valve H33, water inlet electromagnetic lift valve I35, water inlet electromagnetic lift valve J39, water inlet electromagnetic lift valve K41, and water inlet electromagnetic lift valve L43 at the same time. The opening and closing of the water inlet electromagnetic lift valves A17, B19, C21, D25, E27, F29, G31, H33, I35, J39, K41 and L43 are controlled manually and remotely, so as to ensure the reliability of the system operation. The solar panel D52 is used to provide power to the system and stabilize the system operation. The signal source sending device C53 is connected to the remote execution control element 44 with the signal source receiving device 45, and through the operation of the remote execution control element 44, the water inlet solenoid lift valve A17, the water inlet solenoid lift valve B19, the water inlet solenoid lift valve C21, the water inlet solenoid lift valve D25, the water inlet solenoid lift valve E27, the water inlet solenoid lift valve F29, the water inlet solenoid lift valve G31, the water inlet solenoid lift valve H33, the water inlet solenoid lift valve I35, the water inlet solenoid lift valve J39, the water inlet solenoid lift valve K41, and the water inlet outlet 65 in L43 are intelligently realized to increase and decrease the opening degree and open and close the water inlet outlet 65, so as to complete the flow of water from the water inlet channel 66 to the experimental field and realize the precise control of the field water level.The function of the energy dissipation pool 64 is to mitigate the impact force of the water flow in the water pipe 12 and then allow the water flow to flow into the experimental field. The energy dissipation pool 64 is built on the edge of the field and does not affect the farming in the field.

[0051] Water level gauge A3, water level gauge B7, water level gauge C24, water level gauge D38 are provided with solar panel C49, signal source sending device B50, water level gauge A scale line 61, water level gauge A fixing rivet 62, water level gauge A support platform 63 and other components. The functions of water level gauge A3, water level gauge B7, water level gauge C24, water level gauge D38 are used to monitor the water level information in test field I, test field II, test field III, and test field IV respectively. The solar panel C49 is used to provide power energy to the system and stabilize the operation of the system. The signal source sending device B50 and the signal source receiving device 45 are connected to the remote execution control element 44, and the remote execution control element 44 is intelligently compared with the set upper limit value by operating, so as to determine whether the corresponding test field needs to be drained. The function of the water level gauge A scale line 61 is to manually read the information of the water level height in the test field to ensure the accuracy and reliability of the acquired data. Ensure the precise control of the field water level. The water level gauge A fixing rivet 62 is used to fix the water level gauge A3, water level gauge B7, water level gauge C24, and water level gauge D38 in the field. The water level gauge A supporting platform 63 is used to maintain the stability and balance of the water level gauge A3, water level gauge B7, water level gauge C24, and water level gauge D38, so as to effectively and accurately obtain the data generated by the field water level 58.

[0052] Soil moisture sensor A2, soil moisture sensor B6, soil moisture sensor C23, soil moisture sensor D37 are provided with solar panel B47, vertical power transmission rod 48, signal source sending E60 and other components. The functions of soil moisture sensors A2, B6, C23, D37 are used to monitor the soil moisture information in test field I, test field II, test field III, and test field IV respectively. The solar panel B47 is used to provide power energy to the system and stabilize the operation of the system. The vertical power transmission rod 48 is used to transmit the electric energy generated by the solar panel B47 to the soil moisture sensor A2, soil moisture sensor B6, soil moisture sensor C23, and soil moisture sensor D37 to maintain the stable operation of the system. The signal source sending E60 and the signal source receiving 45 are connected to the remote execution control element 44, and the remote execution control element 44 is operated to compare with the set lower limit value intelligently, so as to determine whether the corresponding test field needs to be irrigated. Ensure the precise control of the field water level.

[0053] The drainage electromagnetic lift valve A18, drainage electromagnetic lift valve B20, drainage electromagnetic lift valve C26, drainage electromagnetic lift valve D28, drainage electromagnetic lift valve E32, drainage electromagnetic lift valve F34, drainage electromagnetic lift valve G40 and drainage electromagnetic lift valve H42 are provided with solar panels A46, manual switches B54, signal source sending devices D55, drainage channels 56, drainage outlets 57 and other components. The drainage electromagnetic lift valve A18, drainage electromagnetic lift valve B20, drainage electromagnetic lift valve C26, drainage electromagnetic lift valve D28, drainage electromagnetic lift valve E32, drainage electromagnetic lift valve F34, drainage electromagnetic lift valve G40 and drainage electromagnetic lift valve H42 are used to control the drainage functions in the test field I, test field II, test field III and test field IV respectively. The solar panel A46 is used to provide power energy to the system and stabilize the operation of the system. The function of the manual switch B54 is to realize the opening and closing of the drain solenoid lift valve A18, the drain solenoid lift valve B20, the drain solenoid lift valve C26, the drain solenoid lift valve D28, the drain solenoid lift valve E32, the drain solenoid lift valve F34, the drain solenoid lift valve G40 and the drain solenoid lift valve H42 through manual operation. In this way, the system can simultaneously realize manual and remote control of the opening and closing of the drain solenoid lift valve A18, the drain solenoid lift valve B20, the drain solenoid lift valve C26, the drain solenoid lift valve D28, the drain solenoid lift valve E32, the drain solenoid lift valve F34, the drain solenoid lift valve G40 and the drain solenoid lift valve H42, thereby ensuring the reliability of the system operation. The signal source transmitter D55 and the signal source receiver 45 are connected to the remote execution control element 44. By operating the remote execution control element 44, the rising and falling opening of the drainage outlet 57 in the drainage solenoid lift valve A18, the drainage solenoid lift valve B20, the drainage solenoid lift valve C26, the drainage solenoid lift valve D28, the drainage solenoid lift valve E32, the drainage solenoid lift valve F34, the drainage solenoid lift valve G40, and the drainage solenoid lift valve H42 are intelligently realized, and the drainage outlet 57 is opened and closed, so that the water in the test field is completed to flow to the drainage channel 56, and the precise control of the field water level is realized.

[0054] The electromagnetic switch valve assembly A8, the electromagnetic switch valve assembly B22, the electromagnetic switch valve assembly C30, and the electromagnetic switch valve assembly D36 are provided with solar panels E67, electromagnetic switch valves 68, signal source transmission F69 and other components. The electromagnetic switch valve assembly A8, the electromagnetic switch valve assembly B22, the electromagnetic switch valve assembly C30, and the electromagnetic switch valve assembly D36 are used to control the functions of irrigating the test field I, the test field II, the test field III, and the test field IV. The solar panel E67 is used to provide power energy to the system and stabilize the operation of the system. The electromagnetic switch valve 68 is used to control the flow direction of water in the water pipe 12.

[0055] The working process is as follows: in the irrigation of farmland, taking the growth of rice crops as an example, first set the upper and lower limits of irrigation for the four experimental fields I, II, III, and IV. Table 1 shows the setting of the upper and lower limits of irrigation in each key growth period of different experimental fields of rice.

[0056] Table 1 Upper and lower limits of irrigation in different rice experimental plots during each key growth period

[0057]

[0058] Note: % refers to the percentage of soil saturated moisture content; others indicate the depth of water layer in mm.

[0059] When there is a water layer in the test field, the field water level 58 is read and the water level information is sent out through the signal source sending device B50 using the water level meter A3, water level meter B7, water level meter C24, and water level meter D38. The relevant data is obtained by the signal source receiver 45 and compared with the set upper limit of irrigation to determine whether the field water level has exceeded their upper limit value. If the field water level has exceeded the upper limit of the set irrigation, the drainage electromagnetic lift valve A18, drainage electromagnetic lift valve B20, drainage electromagnetic lift valve C26, drainage electromagnetic lift valve D28, drainage electromagnetic lift valve E32, drainage electromagnetic lift valve F34, drainage electromagnetic lift valve G40, and drainage electromagnetic lift valve H42 are opened by operating the remote execution control element 44 until the field water level 58 is controlled to the relevant position, and then the drainage electromagnetic lift valves A18, drainage electromagnetic lift valve B20, drainage electromagnetic lift valve C26, drainage electromagnetic lift valve D28, drainage electromagnetic lift valve E32, drainage electromagnetic lift valve F34, drainage electromagnetic lift valve G40, and drainage electromagnetic lift valve H42 are closed. Through the above steps, the field water level 58 can be accurately controlled by drainage during different growth periods of rice.

[0060] When the water level 58 in the test field is maintained without a water layer, the soil moisture sensor A2, soil moisture sensor B6, soil moisture sensor C23, and soil moisture sensor D37 are used to send the information of soil moisture content through the signal source E60, and the signal source receiver 45 obtains the relevant data and compares it with the set lower limit of irrigation to determine whether the soil moisture content has fallen below their lower limit. If the soil moisture content is already below the set lower limit of irrigation, the pump system 13 is turned on by operating the remote execution control element 44, and the water inlet electromagnetic lift valve A17, water electromagnetic lift valve B19, water electromagnetic lift valve C21, water electromagnetic lift valve D25, water electromagnetic lift valve E27, water electromagnetic lift valve F29, water electromagnetic lift valve G31, water electromagnetic lift valve H33, water electromagnetic lift valve I35, water electromagnetic lift valve J39, water electromagnetic lift valve K41, and water electromagnetic lift valve L43 are respectively turned on to read the water content of the soil. The data in the flowmeter A9 and the flowmeter B10 are taken until the field water level 58 is controlled to the relevant position, and then the pump system 13 and the water inlet electromagnetic lift valve A17, water inlet electromagnetic lift valve B19, water inlet electromagnetic lift valve C21, water inlet electromagnetic lift valve D25, water inlet electromagnetic lift valve E27, water inlet electromagnetic lift valve F29, water inlet electromagnetic lift valve G31, water inlet electromagnetic lift valve H33, water inlet electromagnetic lift valve I35, water inlet electromagnetic lift valve J39, water inlet electromagnetic lift valve K41, water inlet electromagnetic lift valve L43 are closed. Through the above steps, the field water level 58 can be accurately controlled by irrigation during different growth periods of rice.

[0061] The test process is divided into the following situations and operation plans in the irrigation and drainage system for precise control of field water level:

[0062] When only the test field I needs to be irrigated, the pump system 13 is turned on by operating the remote execution control element 44, the electromagnetic switch valve assembly C30 is turned on, the water inlet electromagnetic lift valve G31, the water inlet electromagnetic lift valve H33 and the water inlet electromagnetic lift valve I35 are turned on; the electromagnetic switch valve assembly A8 is turned off, the drainage electromagnetic lift valve E32, the drainage electromagnetic lift valve F34 are turned off, and the electromagnetic switch valve assembly D36 is turned off; when only the test field I needs to be drained, the pump system 13 is turned off by operating the remote execution control element 44, and the drainage electromagnetic lift valve E32 and the drainage electromagnetic lift valve F34 are turned on; the water in the test field I flows into the irrigation and drainage dual-purpose channel 4;

[0063] When only the experimental field II needs to be irrigated, the pump system 13 is turned on by operating the remote execution control element 44, the electromagnetic switch valve assembly A8 is turned on, the water inlet electromagnetic lift valve A17, the water inlet electromagnetic lift valve B19 and the water inlet electromagnetic lift valve C21 are turned on; the drainage electromagnetic lift valve A18, the drainage electromagnetic lift valve B20, the electromagnetic switch valve assembly B22 and the electromagnetic switch valve assembly C30 are turned off; when only the experimental field II needs to be drained, the pump system 13 is turned off by operating the remote execution control element 44, the drainage electromagnetic lift valve A18 and the drainage electromagnetic lift valve B20 are turned on; the water in the experimental field II flows into the drainage ditch 1;

[0064] When only the test field III needs to be irrigated, the pump system 13 is turned on by operating the remote execution control element 44, the electromagnetic switch valve assembly A8 and the electromagnetic switch valve assembly B22 are turned on, the water inlet electromagnetic lift valve D25, the water inlet electromagnetic lift valve E27 and the water inlet electromagnetic lift valve F29 are turned on; the electromagnetic switch valve assembly C30 is turned off, the water inlet electromagnetic lift valve A17, the water inlet electromagnetic lift valve B19 and the water inlet electromagnetic lift valve C21 are turned off, and the drainage electromagnetic lift valve C26 and the drainage electromagnetic lift valve D28 are turned off; when only the test field III needs to be drained, the pump system 13 is turned off by operating the remote execution control element 44, and the drainage electromagnetic lift valve C26 and the drainage electromagnetic lift valve D28 are turned on; the water in the test field III flows into the drainage ditch 1;

[0065] When only the experimental field IV needs to be irrigated, the pump system 13 is turned on by operating the remote execution control element 44, the electromagnetic switch valve assembly C30 and the electromagnetic switch valve assembly D36 are turned on, and the water inlet electromagnetic lift valve J39, the water inlet electromagnetic lift valve K41 and the water inlet electromagnetic lift valve L43 are turned on; the electromagnetic switch valve assembly A8 is turned off, the water inlet electromagnetic lift valve G31, the water inlet electromagnetic lift valve H33, the water inlet electromagnetic lift valve I35 are turned off, and the drainage electromagnetic lift valve G, the drainage electromagnetic lift valve 40 and the drainage electromagnetic lift valve H42 are turned off; when only the experimental field IV needs to be drained, the pump system 13 is turned off by operating the remote execution control element 44, and the drainage electromagnetic lift valve 40 and the drainage electromagnetic lift valve H42 are turned on; so that the water in the experimental field IV flows into the irrigation and drainage dual-purpose channel 4;

[0066] When the experimental field I and the experimental field II need to be irrigated, the pump system 13 is turned on by operating the remote execution control element 44, the electromagnetic switch valve assembly A8 and the electromagnetic switch valve assembly C30 are turned on, the water inlet electromagnetic lift valve A17, the water inlet electromagnetic lift valve B19, the water inlet electromagnetic lift valve C21, the water inlet electromagnetic lift valve G31, the water inlet electromagnetic lift valve H33 and the water inlet electromagnetic lift valve I35 are turned on; the drainage electromagnetic lift valve A18, the drainage electromagnetic lift valve B20, the drainage electromagnetic lift valve E32 and the drainage electromagnetic lift valve F34 are turned off, and the electromagnetic switch valve assembly B22 and the electromagnetic switch valve assembly D36 are turned off; when the experimental field I and the experimental field II need to be drained, the pump system 13 is turned off by operating the remote execution control element 44, and the drainage electromagnetic lift valve A18, the drainage electromagnetic lift valve B20, the drainage electromagnetic lift valve E32 and the drainage electromagnetic lift valve F34 are turned on; the water in the experimental field I flows into the irrigation and drainage dual-purpose channel 4, and the water in the experimental field II flows into the drainage ditch 1;

[0067] When the experimental fields I and III need to be irrigated, the remote execution control element 44 is operated to start the pump system 13, open the electromagnetic switch valve assembly A8, the electromagnetic switch valve assembly B22 and the electromagnetic switch valve assembly C30, open the water inlet electromagnetic lift valve D25, the water inlet electromagnetic lift valve E27, the water inlet electromagnetic lift valve F29, the water inlet electromagnetic lift valve G31, the water inlet electromagnetic lift valve H33 and the water inlet electromagnetic lift valve I35; close the water inlet electromagnetic lift valves A17, B19 and C21, and close the drainage electromagnetic lift valve C 26. The drainage electromagnetic lift valve D28, the drainage electromagnetic lift valve E32 and the drainage electromagnetic lift valve F34 close the electromagnetic switch valve assembly D36; when the test field I and the test field III need to be drained, the pump system 13 is closed by operating the remote execution control element 44, and the drainage electromagnetic lift valve C26, the drainage electromagnetic lift valve D28, the drainage electromagnetic lift valve E32 and the drainage electromagnetic lift valve F34 are opened; the water in the test field I flows into the irrigation and drainage dual-purpose channel 4, and the water in the test field III flows into the drainage ditch 1;

[0068] When the experimental field I and the experimental field IV need to be irrigated, the pump system 13 is turned on by operating the remote execution control element 44, the electromagnetic switch valve assembly C30 and the electromagnetic switch valve assembly D36 are turned on, and the water inlet electromagnetic lift valve G31, the water inlet electromagnetic lift valve H33, the water inlet electromagnetic lift valve I35, the water inlet electromagnetic lift valve J39, the water inlet electromagnetic lift valve K41 and the water inlet electromagnetic lift valve L43 are turned on; the electromagnetic switch valve assembly A8 is turned off, and the drainage electromagnetic lift valve E32, the drainage electromagnetic lift valve F34, the drainage electromagnetic lift valve G40 and the drainage electromagnetic lift valve H42 are turned off; when the experimental field 1 and the experimental field IV need to be drained, the pump system 13 is turned off by operating the remote execution control element 44, and the drainage electromagnetic lift valve E32, the drainage electromagnetic lift valve F34, the drainage electromagnetic lift valve G40 and the drainage electromagnetic lift valve H42 are turned on; so that the water in the experimental field I and the experimental field IV flows into the irrigation and drainage dual-purpose channel 4;

[0069] When the experimental field II and the experimental field III need to be irrigated, the pump system 13 is turned on by operating the remote execution control element 44, the electromagnetic switch valve assembly A8 and the electromagnetic switch valve assembly B22 are turned on, the water inlet electromagnetic lift valve A17, the water inlet electromagnetic lift valve B19, the water inlet electromagnetic lift valve C21, the water inlet electromagnetic lift valve D25, the water inlet electromagnetic lift valve E27 and the water inlet electromagnetic lift valve F29 are turned on; the drainage electromagnetic lift valve A18, the drainage electromagnetic lift valve B20, the drainage electromagnetic lift valve C26 and the drainage electromagnetic lift valve D28 are turned off, and the electromagnetic switch valve assembly C30 is turned off; when the experimental field II and the experimental field III need to be drained, the pump system 13 is turned off by operating the remote execution control element 44, and the drainage electromagnetic lift valve A18, the drainage electromagnetic lift valve B20, the drainage electromagnetic lift valve C26 and the drainage electromagnetic lift valve D28 are turned on; so that the water in the experimental field II and the experimental field III flows into the drainage ditch 1;

[0070] When the experimental fields II and IV need to be irrigated, the pump system 13 is turned on by operating the remote execution control element 44, and the electromagnetic switch valve assembly A8, the electromagnetic switch valve assembly C30 and the electromagnetic switch valve assembly D36 are turned on; the water inlet electromagnetic lift valve A17, the water inlet electromagnetic lift valve B19, the water inlet electromagnetic lift valve C21, the water inlet electromagnetic lift valve J39, the water inlet electromagnetic lift valve K41 and the water inlet electromagnetic lift valve L43 are turned on; the water inlet electromagnetic lift valve G31, the water inlet electromagnetic lift valve H33 and the water inlet electromagnetic lift valve I35 are turned off; the drainage is turned off. The electromagnetic lift valve A18, the drainage electromagnetic lift valve B20, the drainage electromagnetic lift valve G40 and the drainage electromagnetic lift valve H42 close the electromagnetic switch valve assembly B22; when the experimental field II and the experimental field IV need to be drained, the pump system 13 is closed by operating the remote execution control element 44, the drainage electromagnetic lift valve B20, the drainage electromagnetic lift valve G40 and the drainage electromagnetic lift valve H42 are opened, and the electromagnetic switch valve assembly B22 is closed; the water in the experimental field II flows into the drainage ditch 1, and the water in the experimental field IV flows into the irrigation and drainage dual-purpose channel 4;

[0071] When the experimental fields III and IV need to be irrigated, the pump system 13 is turned on by operating the remote execution control element 44, and the electromagnetic switch valve assembly A8, the electromagnetic switch valve assembly B22, the electromagnetic switch valve assembly C30 and the electromagnetic switch valve assembly D36 are turned on; the water inlet electromagnetic lift valve D25, the water inlet electromagnetic lift valve E27, the water inlet electromagnetic lift valve F29, the water inlet electromagnetic lift valve J39, the water inlet electromagnetic lift valve K41 and the water inlet electromagnetic lift valve L43 are turned on; the water inlet electromagnetic lift valve A17, the water inlet electromagnetic lift valve B19, the water inlet electromagnetic lift valve C21, the water inlet electromagnetic lift valve G36 are turned on; and the water inlet electromagnetic lift valve A17, the water inlet electromagnetic lift valve B19, the water inlet electromagnetic lift valve C21, the water inlet electromagnetic lift valve G36 are turned on. 31. The water inlet electromagnetic lift valve H33 and the water inlet electromagnetic lift valve I35 close the drainage electromagnetic lift valve C26, the drainage electromagnetic lift valve D28, the drainage electromagnetic lift valve G40 and the drainage electromagnetic lift valve H42; when the experimental fields III and IV need to be drained, the pump system 13 is closed by operating the remote execution control element 44, and the drainage electromagnetic lift valve C26, the drainage electromagnetic lift valve D28, the drainage electromagnetic lift valve G40 and the drainage electromagnetic lift valve H42 are opened; the water in the experimental field III flows into the drainage ditch 1, and the water in the experimental field IV flows into the irrigation and drainage dual-purpose channel 4;

[0072] When the experimental fields I, II and III need to be irrigated, the remote execution control element 44 is operated to start the pump system 13, open the electromagnetic switch valve components A8, B22 and the electromagnetic switch valve component C30, open the water inlet electromagnetic lift valve A17, the water inlet electromagnetic lift valve B19, the water inlet electromagnetic lift valve C21, the water inlet electromagnetic lift valve D25, the water inlet electromagnetic lift valve E27, the water inlet electromagnetic lift valve F29, the water inlet electromagnetic lift valve G31, the water inlet electromagnetic lift valve H33 and I35; close the electromagnetic switch valve component D36, close the drainage electromagnetic lift valve A18, the drainage electromagnetic lift valve B20, Drainage electromagnetic lift valve C26, drainage electromagnetic lift valve D28, drainage electromagnetic lift valve E32 and drainage electromagnetic lift valve F34; when the test field I, the test field II and the test field III need to be drained, the pump system 13 is closed by operating the remote execution control element 44, and the drainage electromagnetic lift valve A18, the drainage electromagnetic lift valve B20, the drainage electromagnetic lift valve C26, the drainage electromagnetic lift valve D28, the drainage electromagnetic lift valve E32 and the drainage electromagnetic lift valve F34 are opened; the water in the test field I flows into the irrigation and drainage dual-purpose channel 4, and the water in the test field II and the test field III flows into the drainage ditch 1;

[0073] When the experimental fields I, II and IV need to be irrigated, the remote execution control element 44 is operated to start the pump system 13, open the electromagnetic switch valve assembly A8, the electromagnetic switch valve assembly C30 and the electromagnetic switch valve assembly D36, open the water inlet electromagnetic lift valve A17, the water inlet electromagnetic lift valve B19, the water inlet electromagnetic lift valve C21, the water inlet electromagnetic lift valve G31, the water inlet electromagnetic lift valve H33, the water inlet electromagnetic lift valve I35, the water inlet electromagnetic lift valve J39, the water inlet electromagnetic lift valve K41 and the water inlet electromagnetic lift valve L43; close the electromagnetic switch valve assembly B22, close the drainage electromagnetic lift valve A18, the drainage electromagnetic lift valve C21, the drainage electromagnetic lift valve C32, ... Magnetic lift valve B20, drainage electromagnetic lift valve E32, drainage electromagnetic lift valve F34, drainage electromagnetic lift valve G40 and drainage electromagnetic lift valve H42; when the test field I, the test field II and the test field IV need to be drained, the pump system 13 is closed by operating the remote execution control element 44, and the drainage electromagnetic lift valve A18, the drainage electromagnetic lift valve B20, the drainage electromagnetic lift valve E32, the drainage electromagnetic lift valve F34, the drainage electromagnetic lift valve G40 and the drainage electromagnetic lift valve H42 are opened; the water in the test field I and the test field IV flows into the irrigation and drainage dual-purpose channel 4, and the water in the test field II flows into the drainage ditch 1;

[0074] When the test field I, the test field III and the test field IV need to be irrigated, the pump system 13 is turned on by operating the remote execution control element 44, the electromagnetic switch valve assembly A8, the electromagnetic switch valve assembly B22, the electromagnetic switch valve assembly C30 and the electromagnetic switch valve assembly D36 are turned on, and the water inlet electromagnetic lift valve D25, the water inlet electromagnetic lift valve E27, the water inlet electromagnetic lift valve F29, the water inlet electromagnetic lift valve G31, the water inlet electromagnetic lift valve H33, the water inlet electromagnetic lift valve I35, the water inlet electromagnetic lift valve J39, the water inlet electromagnetic lift valve K41 and the water inlet electromagnetic lift valve L43 are turned on; the water inlet electromagnetic lift valve A17, the water inlet electromagnetic lift valve B19 and the water inlet electromagnetic lift valve C21 are turned off; Close the drainage electromagnetic lift valve C26, drainage electromagnetic lift valve D28, drainage electromagnetic lift valve E32, drainage electromagnetic lift valve F34, drainage electromagnetic lift valve G40 and drainage electromagnetic lift valve H42; when the experimental field I, the experimental field III and the experimental field IV need to be drained, by operating the remote execution control element 44, the pump system 13 is closed, and the drainage electromagnetic lift valve C26, drainage electromagnetic lift valve D28, drainage electromagnetic lift valve E32, drainage electromagnetic lift valve F34, drainage electromagnetic lift valve G40 and drainage electromagnetic lift valve H42 are opened; the water in the experimental field I and the experimental field IV flows into the irrigation and drainage dual-purpose channel 4, and the water in the experimental field III flows into the drainage ditch 1;

[0075] When the experimental fields II, III and IV need to be irrigated, the pump system 13 is turned on by operating the remote execution control element 44, and the electromagnetic switch valve assembly A8, the electromagnetic switch valve assembly B22, the electromagnetic switch valve assembly C30 and the electromagnetic switch valve assembly D36 are turned on; the water inlet electromagnetic lift valve A17, the water inlet electromagnetic lift valve B19, the water inlet electromagnetic lift valve C21, the water inlet electromagnetic lift valve D25, the water inlet electromagnetic lift valve E27, the water inlet electromagnetic lift valve F29, the water inlet electromagnetic lift valve J39, the water inlet electromagnetic lift valve K41 and the water inlet electromagnetic lift valve L43 are turned on; the water inlet electromagnetic lift valve G31, the water electromagnetic lift valve H33 and the water electromagnetic lift valve I35 are turned off; the drainage electromagnetic lift valve Magnetic lift valve A18, drainage electromagnetic lift valve B20, drainage electromagnetic lift valve C26, drainage electromagnetic lift valve D28, drainage electromagnetic lift valve G40 and drainage electromagnetic lift valve H42; when the experimental field II, the experimental field III and the experimental field IV need to be drained, the pump system 13 is closed by operating the remote execution control element 44, and the drainage electromagnetic lift valve drainage electromagnetic lift valve A18, drainage electromagnetic lift valve B20, drainage electromagnetic lift valve C26, drainage electromagnetic lift valve D28, drainage electromagnetic lift valve G40 and drainage electromagnetic lift valve H42 are opened; the water in the experimental field II and the experimental field III flows into the drainage ditch 1, and the water in the experimental field IV flows into the irrigation and drainage dual-purpose channel 4;

[0076] When the experimental fields I, II, III and IV need to be irrigated, the remote execution control element 44 is operated to start the pump system 13, open the electromagnetic switch valve assembly A8, the electromagnetic switch valve assembly B22, the electromagnetic switch valve assembly C30 and the electromagnetic switch valve assembly D36, open the water inlet electromagnetic lift valve A17, the water inlet electromagnetic lift valve B19, the water inlet electromagnetic lift valve C21, the water inlet electromagnetic lift valve D25, the water inlet electromagnetic lift valve E27, the water inlet electromagnetic lift valve F29, the water inlet electromagnetic lift valve G31, the water inlet electromagnetic lift valve H33, the water inlet electromagnetic lift valve I35, the water inlet electromagnetic lift valve J39, the water inlet electromagnetic lift valve K41 and the water inlet electromagnetic lift valve L43; close the drainage electromagnetic lift valve A18, the drainage electromagnetic lift valve B20, the drainage electromagnetic lift valve Magnetic lift valve C26, drainage electromagnetic lift valve D28, drainage electromagnetic lift valve E32, drainage electromagnetic lift valve F34, drainage electromagnetic lift valve G40 and drainage electromagnetic lift valve H42; when experimental field I, experimental field II, experimental field III and experimental field IV need to be drained, by operating the remote execution control element 44, the pump system 13 is closed, and the drainage electromagnetic lift valve A18, drainage electromagnetic lift valve B20, drainage electromagnetic lift valve C26, drainage electromagnetic lift valve D28, drainage electromagnetic lift valve E32, drainage electromagnetic lift valve F34, drainage electromagnetic lift valve G40 and drainage electromagnetic lift valve H42 are opened; the water in the experimental field I and the experimental field IV flows into the irrigation and drainage dual-purpose channel 4, and the water in the experimental field II and the experimental field III flows into the drainage ditch 1.

[0077] Note: The pump system in the present invention refers to a pumping system consisting of electromechanical equipment with a water pump as the core and supporting buildings, and the remote execution control element refers to the computer software or application that matches the on-site equipment.

[0078] It should be noted that three water inlet electromagnetic lift valves and two drainage electromagnetic lift valves are set in each test field. During operation, the corresponding number of valves can be opened or closed according to the water inlet or drainage flow requirements of the test field, so as to complete the water inlet or drainage within the specified time, thereby realizing the precise control of the field water level.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0080] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

1. A drainage and irrigation system for accurately controlling field water levels, characterized in that: The invention comprises a pump system (13), a water pipe, a water level meter, an electromagnetic switch valve assembly, a soil moisture sensor, a water inlet electromagnetic lift valve and a water discharge electromagnetic lift valve; the pump system (13) transports water to a test field through the water pipe, and a flow meter, a water level meter, an electromagnetic switch valve assembly, a soil moisture sensor, a water inlet electromagnetic lift valve and a water discharge electromagnetic lift valve are arranged in the test field; the pump system (13) can be opened and closed manually or remotely at the same time.

2. The irrigation and drainage system for accurately controlling field water level according to claim 1, characterized in that: The flow meter is used to read the water volume data input into the experimental field by the pump system (13); The water inlet electromagnetic lift valve is used to control the water inlet of the test field; The water level meter is used to monitor the water level information of the test field; The soil moisture sensor is used to monitor the soil moisture information in the test field; The drainage electromagnetic lift valve is used to control the drainage of the test field; The electromagnetic switch valve assembly is used to control the opening and closing of the water pipe for irrigating the test field.

3. The irrigation and drainage system for accurately controlling field water level according to claim 1, characterized in that: The water inlet electromagnetic lift valve is provided with a manual switch, a solar panel and a signal source sending device, wherein the manual switch is used to realize the opening and closing of the water inlet electromagnetic lift valve through manual operation; the signal source sending device and the signal source receiving device are connected to the remote execution control element, and the opening and closing of the water inlet electromagnetic lift valve are realized through the remote execution control element; the solar panel is used to provide electricity.

4. The irrigation and drainage system for accurately controlling field water level according to claim 1, characterized in that: The water level meter is provided with a solar panel, a signal source sending device and scale lines; the solar panel is used to provide electricity; the signal source sending 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 to determine whether the corresponding test field needs to be drained; the scale lines on the water level meter are used to manually read the water level information in the test field to ensure the accuracy and reliability of the acquired data.

5. The irrigation and drainage system for accurately controlling field water level according to claim 1, characterized in that: The soil moisture sensor is provided with a solar panel, a vertical power transmission pole and a signal source sending device; the vertical power transmission pole is used to transmit the electric energy generated by the solar panel to the soil moisture sensor; the signal source sending 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 test field needs to be irrigated.

6. The irrigation and drainage system for accurately controlling field water level according to claim 1, characterized in that: The drainage electromagnetic lift valve is provided with a solar panel, a manual switch and a signal source sending device; the solar panel is used to provide electricity; the manual switch realizes the opening and closing of the drainage electromagnetic lift valve through manual operation, and the signal source sending device and the signal source receiving device are connected to a remote execution control element, and the opening and closing of the drainage electromagnetic lift valve are realized intelligently by operating the remote execution control element.

7. The irrigation and drainage system for accurately controlling field water level according to claim 1, characterized in that: The electromagnetic switch valve assembly is provided 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 pipe; the solar panel is used to provide electricity.

8. The method for realizing the irrigation and drainage system for accurately controlling the field water level according to any one of claims 1 to 7, characterized in that: Set the upper and lower limits of irrigation for the experimental field. Specifically, When the water level in the test field maintains a water layer, the field water level is read using a water level meter, and the water level information is sent through a signal source sending device. The signal source receiving device obtains relevant data and compares it with the set upper limit of irrigation to determine whether the field water level has exceeded the upper limit value; if the water level in the test field has exceeded the set upper limit of irrigation, the drainage solenoid lift valve is opened by operating the remote execution control element until the field water level is controlled to the relevant position, and then the drainage solenoid lift valve is closed. When the water level in the test field is maintained at a level without a water layer, the soil moisture sensor is used to send soil moisture information through a signal source sending device, and the signal source receiving device obtains relevant data and compares it with the set lower limit of irrigation to determine whether the soil moisture content is lower than the lower limit; if the soil moisture content is lower than the set lower limit of irrigation, the pump system (13) is turned on by operating the remote execution control element, and the water inlet electromagnetic lift valve is turned on at the same time, and the data in the flow meter is read until the field water level is controlled to a relevant position, and then the pump system (13) and the water inlet electromagnetic lift 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 the experimental field I needs to be irrigated, the pump system (13) is turned on by operating the remote execution control element (44), the electromagnetic switch valve assembly C (30) is turned on, and the water inlet electromagnetic lift valve G (31), the water inlet electromagnetic lift valve H (33) and the water inlet electromagnetic lift valve I (35) are turned on; the electromagnetic switch valve assembly A (8) is turned off, the drainage electromagnetic lift valve E (32), the drainage electromagnetic lift valve F (34) are turned off, and the electromagnetic switch valve assembly D (36) is turned off; when only the experimental field I needs to be drained, the pump system (13) is turned off by operating the remote execution control element (44), and the drainage electromagnetic lift valve E (32) and the drainage electromagnetic lift valve F (34) are turned on; so that the water in the experimental field I flows into the irrigation and drainage dual-purpose channel (4); When only the experimental field II needs to be irrigated, the pump system (13) is turned on by operating the remote execution control element (44), the electromagnetic switch valve assembly A (8) is turned on, the water inlet electromagnetic lift valve A (17), the water inlet electromagnetic lift valve B (19) and the water inlet electromagnetic lift valve C (21) are turned on; the drainage electromagnetic lift valve A (18), the drainage electromagnetic lift valve B (20), the electromagnetic switch valve assembly B (22) and the electromagnetic switch valve assembly C (30) are turned off; when only the experimental field II needs to be drained, the pump system (13) is turned off by operating the remote execution control element (44), the drainage electromagnetic lift valve A (18) and the drainage electromagnetic lift valve B (20) are turned on; and the water in the experimental field II flows into the drainage ditch (1); When only the experimental field III needs to be irrigated, the pump system (13) is turned on by operating the remote execution control element (44), the electromagnetic switch valve assembly A (8), the electromagnetic switch valve assembly B (22), the water inlet electromagnetic lift valve D (25), the water inlet electromagnetic lift valve E (27) and the water inlet electromagnetic lift valve F (29) are turned on; the electromagnetic switch valve assembly C (30) is turned off, the water inlet electromagnetic lift valve A (17), the water inlet electromagnetic lift valve B (19) and the water inlet electromagnetic lift valve C (21) are turned off, and the drainage electromagnetic lift valve C (26) and the drainage electromagnetic lift valve D (28) are turned off; when only the experimental field III needs to be drained, the pump system (13) is turned off by operating the remote execution control element (44), and the drainage electromagnetic lift valve C (26) and the drainage electromagnetic lift valve D (28) are turned on; and the water in the experimental field III flows into the drainage ditch (1); When only the experimental field IV needs to be irrigated, the pump system (13) is turned on by operating the remote execution 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 valve J (39), the water inlet electromagnetic lift valve K (41) and the water inlet electromagnetic lift valve L (43) are turned on; the electromagnetic switch valve assembly A (8) is turned off, the water inlet electromagnetic lift valve G (31), the water inlet electromagnetic lift valve H (33), the water inlet electromagnetic lift valve I (35) are turned off, and the drainage electromagnetic lift valve G, the drainage electromagnetic lift valve (40) and the drainage electromagnetic lift valve H (42) are turned off; when only the experimental field IV needs to be drained, the pump system (13) is turned off by operating the remote execution control element (44), and the drainage electromagnetic lift valve (40) and the drainage electromagnetic lift valve H (42) are turned on; so that the water in the experimental field IV flows into the irrigation and drainage dual-purpose channel (4); When the experimental field I and the experimental field II need to be irrigated, the pump system (13) is turned on by operating the remote execution control element (44), the electromagnetic switch valve assembly A (8), the electromagnetic switch valve assembly C (30), the water inlet electromagnetic lift valve A (17), the water inlet electromagnetic lift valve B (19), the water inlet electromagnetic lift valve C (21), the water inlet electromagnetic lift valve G (31), the water inlet electromagnetic lift valve H (33) and the water inlet electromagnetic lift valve I (35) are turned on; and the drainage electromagnetic lift valve A (18), the drainage electromagnetic lift valve B (20), the drainage electromagnetic lift valve C (21), the drainage electromagnetic lift valve G (31), the drainage electromagnetic lift valve H (33) and the drainage electromagnetic lift valve I (35) are turned on. E (32) and drainage electromagnetic lift valve F (34), and close the electromagnetic switch valve assembly B (22) and the electromagnetic switch valve assembly D (36); when the experimental field I and the experimental field II need to be drained, by operating the remote execution control element (44), the pump system (13) is closed, and the drainage electromagnetic lift valve A (18), the drainage electromagnetic lift valve B (20), the drainage electromagnetic lift valve E (32) and the drainage electromagnetic lift valve F (34) are opened; the water in the experimental field I flows into the irrigation and drainage dual-purpose channel (4), and the water in the experimental field II flows into the drainage ditch (1); When the experimental fields I and III need to be irrigated, the pump system (13) is turned on by operating the remote execution control element (44), the electromagnetic switch valve assembly A (8), the electromagnetic switch valve assembly B (22) and the electromagnetic switch valve assembly C (30) are turned on, the water inlet electromagnetic lift valve D (25), the water inlet electromagnetic lift valve E (27), the water inlet electromagnetic lift valve F (29), the water inlet electromagnetic lift valve G (31), the water inlet electromagnetic lift valve H (33) and the water inlet electromagnetic lift valve I (35) are turned on; the water inlet electromagnetic lift valves A17, B19 and C21 are turned off, and the drainage electromagnetic lift valve C (2 6), the drainage electromagnetic lift valve D (28), the drainage electromagnetic lift valve E (32) and the drainage electromagnetic lift valve F (34), and the electromagnetic switch valve assembly D (36) are closed; when the test field I and the test field III need to be drained, the pump system (13) is closed by operating the remote execution control element (44), and the drainage electromagnetic lift valve C (26), the drainage electromagnetic lift valve D (28), the drainage electromagnetic lift valve E (32) and the drainage electromagnetic lift valve F (34) are opened; the water in the test field I flows into the irrigation and drainage dual-purpose channel (4), and the water in the test field III flows into the drainage ditch (1); When the experimental fields I and IV need to be irrigated, the pump system (13) is turned on by operating the remote execution 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 valve G (31), the water inlet electromagnetic lift valve H (33), the water inlet electromagnetic lift valve I (35), the water inlet electromagnetic lift valve J (39), the water inlet electromagnetic lift valve K (41) and the water inlet electromagnetic lift valve L (43) are turned on; the electromagnetic switch valve assembly A (8) is closed, and the drainage electromagnetic lift valve is closed. Valve E (32), drainage electromagnetic lift valve F (34), drainage electromagnetic lift valve G (40) and drainage electromagnetic lift valve H (42); when the experimental field (1) and the experimental field IV need to be drained, the pump system 13 is closed by operating the remote execution control element (44), and the drainage electromagnetic lift valve E (32), the drainage electromagnetic lift valve F (34), the drainage electromagnetic lift valve G (40) and the drainage electromagnetic lift valve H (42) are opened; so that the water in the experimental field I and the experimental field IV flows into the irrigation and drainage dual-purpose channel (4); When the experimental fields II and III need to be irrigated, the pump system (13) is turned on by operating the remote execution control element (44), the electromagnetic switch valve assembly A (8), the electromagnetic switch valve assembly B (22), the water inlet electromagnetic lift valve A (17), the water inlet electromagnetic lift valve B (19), the water inlet electromagnetic lift valve C (21), the water inlet electromagnetic lift valve D (25), the water inlet electromagnetic lift valve E (27) and the water inlet electromagnetic lift valve F (29); the drainage electromagnetic lift valve A (18), the drainage electromagnetic lift valve B (19), the drainage electromagnetic lift valve C (21), the drainage electromagnetic lift valve D (25), the drainage electromagnetic lift valve E (27) and the drainage electromagnetic lift valve F (29) are turned on. The electromagnetic valve assembly C (30) is closed when the test field II and the test field III need to be drained, the pump system (13) is closed by operating the remote execution control element (44), and the electromagnetic valve assembly A (18), the electromagnetic valve assembly B (20), the electromagnetic valve assembly C (26) and the electromagnetic valve assembly D (28) are opened to allow the water in the test field II and the test field III to flow into the drainage ditch (1); When the experimental fields II and IV need to be irrigated, the remote execution control element (44) is operated to start the pump system (13), open the electromagnetic switch valve assembly A (8), the electromagnetic switch valve assembly C (30) and the electromagnetic switch valve assembly D (36), open the water inlet electromagnetic lift valve A (17), the water inlet electromagnetic lift valve B (19), the water inlet electromagnetic lift valve C (21), the water inlet electromagnetic lift valve J (39), the water inlet electromagnetic lift valve K (41) and the water inlet electromagnetic lift valve L (43); close the water inlet electromagnetic lift valve G (31), the water inlet electromagnetic lift valve H (33) and the water inlet electromagnetic lift valve I (35); close the drainage valve The water electromagnetic lift valve A (18), the drainage electromagnetic lift valve B (20), the drainage electromagnetic lift valve G (40) and the drainage electromagnetic lift valve H (42) are opened, and the electromagnetic switch valve assembly B (22) is closed; when the experimental field II and the experimental field IV need to be drained, the pump system (13) is closed by operating the remote execution control element (44), the drainage electromagnetic lift valve B (20), the drainage electromagnetic lift valve G (40) and the drainage electromagnetic lift valve H (42), and the electromagnetic switch valve assembly B (22) is closed; the water in the experimental field II flows into the drainage ditch (1), and the water in the experimental field IV flows into the irrigation and drainage dual-purpose channel (4); When the experimental fields III and IV need to be irrigated, the pump system (13) is turned on by operating the remote execution control element (44), the electromagnetic switch valve assembly A (8), the electromagnetic switch valve assembly B (22), the electromagnetic switch valve assembly C (30) and the electromagnetic switch valve assembly D (36) are turned on, and the water inlet electromagnetic lift valve D (25), the water inlet electromagnetic lift valve E (27), the water inlet electromagnetic lift valve F (29), the water inlet electromagnetic lift valve J (39), the water inlet electromagnetic lift valve K (41) and the water inlet electromagnetic lift valve L (43) are turned on; and the water inlet electromagnetic lift valve A (17), the water inlet electromagnetic lift valve B (19), the water inlet electromagnetic lift valve C (21), the water inlet electromagnetic lift valve G (43) are turned on. (31), the water inlet electromagnetic lift valve H (33) and the water inlet electromagnetic lift valve I (35), close the drainage electromagnetic lift valve C (26), the drainage electromagnetic lift valve D (28), the drainage electromagnetic lift valve G (40) and the drainage electromagnetic lift valve H (42); when the experimental field III and the experimental field IV need to be drained, by operating the remote execution control element (44), the pump system (13) is closed, and the drainage electromagnetic lift valve C (26), the drainage electromagnetic lift valve D (28), the drainage electromagnetic lift valve G (40) and the drainage electromagnetic lift valve H (42) are opened; the water in the experimental field III flows into the drainage ditch (1), and the water in the experimental field IV flows into the irrigation and drainage dual-purpose channel (4); When the experimental fields I, II and III need to be irrigated, the pump system (13) is turned on by operating the remote execution control element (44), the electromagnetic switch valve components A (8), B (22) and the electromagnetic switch valve component C (30) are turned on, and the water inlet electromagnetic lift valve A (17), the water inlet electromagnetic lift valve B (19), the water inlet electromagnetic lift valve C (21), the water inlet electromagnetic lift valve D (25), the water inlet electromagnetic lift valve E (27), the water inlet electromagnetic lift valve F (29), the water inlet electromagnetic lift valve G (31), the water inlet electromagnetic lift valve H (33) and I (35) are turned on; the electromagnetic switch valve component D (36) is turned off, and the drainage electromagnetic lift valve A (18), the drainage electromagnetic lift valve B (29) are turned off. 0), drainage electromagnetic lift valve C (26), drainage electromagnetic lift valve D (28), drainage electromagnetic lift valve E (32) and drainage electromagnetic lift valve F (34); when the test field I, the test field II and the test field III need to be drained, the pump system (13) is closed by operating the remote execution control element (44), and the drainage electromagnetic lift valve A (18), the drainage electromagnetic lift valve B (20), the drainage electromagnetic lift valve C (26), the drainage electromagnetic lift valve D (28), the drainage electromagnetic lift valve E (32) and the drainage electromagnetic lift valve F (34) are opened; the water in the test field I flows into the irrigation and drainage dual-purpose channel (4), and the water in the test field II and the test field III flows into the drainage ditch (1); When the experimental fields I, II and IV need to be irrigated, the pump system (13) is turned on by operating the remote execution control element (44), the electromagnetic switch valve assembly A (8), the electromagnetic switch valve assembly C (30) and the electromagnetic switch valve assembly D (36) are turned on, the water inlet electromagnetic lift valve A (17), the water inlet electromagnetic lift valve B (19), the water inlet electromagnetic lift valve C (21), the water inlet electromagnetic lift valve G (31), the water inlet electromagnetic lift valve H (33), the water inlet electromagnetic lift valve I (35), the water inlet electromagnetic lift valve J (39), the water inlet electromagnetic lift valve K (41) and the water inlet electromagnetic lift valve L (43) are turned on; the electromagnetic switch valve assembly B (22) is turned off, the drainage electromagnetic lift valve A (18), the drainage electromagnetic lift valve A (19), the drainage electromagnetic lift valve B (21), the drainage electromagnetic lift valve C (21), the drainage electromagnetic lift valve G (31), the drainage electromagnetic lift valve H (33), the drainage electromagnetic lift valve I (35), the drainage electromagnetic lift valve J (39), the drainage electromagnetic lift valve K (41) and the drainage electromagnetic lift valve L (43) are turned on; Solenoid lift valve B (20), drainage solenoid lift valve E (32), drainage solenoid lift valve F (34), drainage solenoid lift valve G (40) and drainage solenoid lift valve H (42); when the test field I, the test field II and the test field IV need to be drained, the pump system (13) is turned off by operating the remote execution control element (44), and the drainage solenoid lift valve A (18), the drainage solenoid lift valve B (20), the drainage solenoid lift valve E (32), the drainage solenoid lift valve F (34), the drainage solenoid lift valve G (40) and the drainage solenoid lift valve H (42) are turned on; the water in the test field I and the test field IV flows into the irrigation and drainage dual-purpose channel (4), and the water in the test field II flows into the drainage ditch (1); When the experimental fields I, III and IV need to be irrigated, the pump system (13) is turned on by operating the remote execution control element (44), the electromagnetic switch valve assembly A (8), the electromagnetic switch valve assembly B (22), the electromagnetic switch valve assembly C (30) and the electromagnetic switch valve assembly D (36) are turned on, and the water inlet electromagnetic lift valve D (25), the water inlet electromagnetic lift valve E (27), the water inlet electromagnetic lift valve F (29), the water inlet electromagnetic lift valve G (31), the water inlet electromagnetic lift valve H (33), the water inlet electromagnetic lift valve I (35), the water inlet electromagnetic lift valve J (39), the water inlet electromagnetic lift valve K (41) and the water inlet electromagnetic lift valve L (43) are turned on; and the water inlet electromagnetic lift valve A (17), the water inlet electromagnetic lift valve B (19) and the water inlet electromagnetic lift valve C (21 ); close the drainage electromagnetic lift valve C (26), drainage electromagnetic lift valve D (28), drainage electromagnetic lift valve E (32), drainage electromagnetic lift valve F (34), drainage electromagnetic lift valve G (40) and drainage electromagnetic lift valve H (42); when the experimental field I, the experimental field III and the experimental field IV need to be drained, by operating the remote execution control element (44), the pump system (13) is closed, and the drainage electromagnetic lift valve C (26), drainage electromagnetic lift valve D (28), drainage electromagnetic lift valve E (32), drainage electromagnetic lift valve F (34), drainage electromagnetic lift valve G (40) and drainage electromagnetic lift valve H (42) are opened; the water in the experimental field I and the experimental field IV flows into the irrigation and drainage dual-purpose channel (4), and the water in the experimental field III flows into the drainage ditch (1); When the experimental fields II, III and IV need to be irrigated, the remote execution control element (44) is operated to start the pump system (13), open the electromagnetic switch valve assembly A (8), the electromagnetic switch valve assembly B (22), the electromagnetic switch valve assembly C (30) and the electromagnetic switch valve assembly D (36), open the water inlet electromagnetic lift valve A (17), the water inlet electromagnetic lift valve B (19), the water inlet electromagnetic lift valve C (21), the water inlet electromagnetic lift valve D (25), the water inlet electromagnetic lift valve E (27), the water inlet electromagnetic lift valve F (29), the water inlet electromagnetic lift valve J (39), the water inlet electromagnetic lift valve K (41) and the water inlet electromagnetic lift valve L (43); close the water inlet electromagnetic lift valve G (31), the water electromagnetic lift valve H (33) and the water electromagnetic lift valve I (35), and close the drainage. water electromagnetic lift valve A (18), drainage electromagnetic lift valve B (20), drainage electromagnetic lift valve C (26), drainage electromagnetic lift valve D (28), drainage electromagnetic lift valve G (40) and drainage electromagnetic lift valve H (42); when the experimental field II, the experimental field III and the experimental field IV need to be drained, the pump system (13) is turned off by operating the remote execution control element (44), and the drainage electromagnetic lift valves drainage electromagnetic lift valve A (18), drainage electromagnetic lift valve B (20), drainage electromagnetic lift valve C (26), drainage electromagnetic lift valve D (28), drainage electromagnetic lift valve G (40) and drainage electromagnetic lift valve H (42) are opened; the water in the experimental field II and the experimental field III flows into the drainage ditch (1), and the water in the experimental field IV flows into the irrigation and drainage dual-purpose channel (4); When the experimental fields I, II, III and IV need to be irrigated, the pump system (13) is turned on by operating the remote execution control element (44), the electromagnetic switch valve assembly A (8), the electromagnetic switch valve assembly B (22), the electromagnetic switch valve assembly C (30) and the electromagnetic switch valve assembly D (36) are turned on, and the water inlet electromagnetic lift valve A (17), the water inlet electromagnetic lift valve B (19), the water inlet electromagnetic lift valve C (21), the water inlet electromagnetic lift valve D (25), the water inlet electromagnetic lift valve E (27), the water inlet electromagnetic lift valve F (29), the water inlet electromagnetic lift valve G (31), the water inlet electromagnetic lift valve H (33), the water inlet electromagnetic lift valve I (35), the water inlet electromagnetic lift valve J (39), the water inlet electromagnetic lift valve K (41) and the water inlet electromagnetic lift valve L (43) are turned on; and the water discharge electromagnetic lift valve A (18), the water discharge electromagnetic lift valve B (20), the water discharge electromagnetic lift valve C (21), the water discharge electromagnetic lift valve D (25), the water discharge electromagnetic lift valve E (27), the water discharge electromagnetic lift valve F (29), the water discharge electromagnetic lift valve G (31), the water discharge electromagnetic lift valve H (33), the water discharge electromagnetic lift valve I (35), the water discharge electromagnetic lift valve J (39), the water discharge electromagnetic lift valve K (41) and the water discharge .... water electromagnetic lift valve C (26), drainage electromagnetic lift valve D (28), drainage electromagnetic lift valve E (32), drainage electromagnetic lift valve F (34), drainage electromagnetic lift valve G (40) and drainage electromagnetic lift valve H (42); when the experimental field I, the experimental field II, the experimental field III and the experimental field IV need to be drained, the pump system (13) is closed by operating the remote execution control element (44), and the drainage electromagnetic lift valve A (18), the drainage electromagnetic lift valve B (20), the drainage electromagnetic lift valve C (26), the drainage electromagnetic lift valve D (28), the drainage electromagnetic lift valve E (32), the drainage electromagnetic lift valve F (34), the drainage electromagnetic lift valve G (40) and the drainage electromagnetic lift valve H (42) are opened; the water in the experimental field I and the experimental field IV flows into the irrigation and drainage dual-purpose channel (4), and the water in the experimental field II and the experimental field III flows into the drainage ditch (1).

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