Automatic flushing drip irrigation method and system

Abstract

The present invention provides an automatic flushing drip irrigation method and system. The method includes: obtaining automatic flushing data; inputting the automatic flushing data into a hydraulic acquisition model of the automatic flushing drip irrigation system to obtain the head water supply pressure and flow rate. Among them, the hydraulic acquisition model of the automatic flushing drip irrigation system is jointly constructed based on the pre-obtained water quality conditions, water source demand, pipe network layout data, flushing valve layout mode, hydraulic acquisition model of the non-flushing drip irrigation system and the pre-calibrated valve loss coefficient of the flushing valve, and is calibrated through the first simulation accuracy evaluation. The hydraulic acquisition model of the non-flushing drip irrigation system is constructed based on the water quality conditions, water source demand and pipe network layout data, and is obtained through the second simulation accuracy evaluation. Through the above method, the present invention can obtain the head water supply conditions that meet the required duration for flushing the drip tape and the pressure and flow rate required for the automatic operation of the flushing valve, and improve the anti-clogging ability of the emitter and the application uniformity of drip irrigation water and fertilizer under the drip irrigation conditions of unconventional water sources.

Description

Technical Field

[0001] The present invention relates to the technical field of drip irrigation, and in particular to an automatic flushing drip irrigation method and system. Background Art

[0002] With the increasing shortage of water resources and water pollution, unconventional water has gradually become the water source for drip irrigation. Due to the narrow flow channel of the water emitter itself, it is extremely easy to be blocked under the interaction of solid particles, salt ions, organic matter and microorganisms in unconventional water. A large number of studies have shown that regularly flushing the drip irrigation tape can significantly improve the blockage phenomenon of the water emitter under the drip irrigation conditions of unconventional water sources. The flushing of the drip irrigation tape mainly relies on the hydraulic shear force and the water flow scouring force to discharge the sediments in the drip irrigation tape and the attachments on the inner wall of the drip irrigation tape from the end of the drip irrigation tape, so as to reduce the probability of blockage substances entering the water emitter, thereby significantly improving the anti-blocking ability of the drip irrigation system.

[0003] At present, two main methods are adopted in China to realize the flushing of the pipe network. The first is to manually open and close the end of the drip irrigation tape to realize the flushing of the drip irrigation system; the second is to automatically open and close the multi-functional valve installed at the end of the drip irrigation tape pipeline to realize the automatic flushing of the drip irrigation system.

[0004] However, whether it is for a newly built automatic flushing drip irrigation system or for installing an automatic flushing valve on a traditional drip irrigation system without flushing, the introduction of new equipment makes the existing hydraulic design method of the drip irrigation system no longer applicable. Under different water quality conditions, there is a lack of method guidance for the selection and matching of the flushing valve specifications and the selection of the flushing valve layout mode (the number of drip irrigation tapes controlled by one flushing valve). The selection and matching of the water supply pressure and flow rate at the head of the newly built system, or whether the water supply conditions at the head of the existing drip irrigation system meet the automatic flushing requirements are the actual engineering problems that need to be solved urgently in the popularization and application of the automatic flushing technology. Summary of the Invention

[0005] The present invention provides an automatic flushing drip irrigation method and system, which is used to solve the defect that the lack of a method for guiding the selection and matching of the automatic flushing valve and the construction of the automatic flushing drip irrigation system in the prior art leads to the unclean flushing of the drip irrigation system caused by the unscientific use of the automatic flushing valve, and quickly determine the hydraulic design parameters of the automatic flushing drip irrigation system according to the actual engineering situation and environmental parameters, so as to improve the flushing quality and enhance the anti-blocking ability of the water emitter.

[0006] The present invention provides an automatic flushing drip irrigation method, including: obtaining automatic flushing data; inputting the automatic flushing data into a hydraulic acquisition model of the automatic flushing drip irrigation system to obtain the head water supply pressure and flow rate output by the hydraulic acquisition model of the automatic flushing drip irrigation system; wherein, the hydraulic acquisition model of the automatic flushing drip irrigation system is jointly constructed based on the pre-obtained water quality conditions, water source demand, pipe network layout data, flushing valve layout mode, hydraulic acquisition model of the non-flushing drip irrigation system and the pre-calibrated flushing valve loss coefficient, and is calibrated through the first simulation accuracy evaluation; the hydraulic acquisition model of the non-flushing drip irrigation system is constructed based on the water quality conditions, the water source demand and the pipe network layout data, and is obtained through the second simulation accuracy evaluation.

[0007] According to the automatic flushing drip irrigation method provided by the present invention, constructing the hydraulic acquisition model of the automatic flushing drip irrigation system includes: constructing an initial hydraulic acquisition model of the non-flushing drip irrigation system according to the pre-obtained water quality conditions, water source demand and pipe network layout data; performing a second simulation accuracy evaluation based on the initial hydraulic acquisition model of the non-flushing drip irrigation system to obtain a hydraulic acquisition model of the non-flushing drip irrigation system; constructing an initial hydraulic acquisition model of the automatic flushing drip irrigation system according to the water quality conditions, the water source demand, the pipe network layout data, the hydraulic acquisition model of the non-flushing drip irrigation system, the pre-obtained flushing valve layout mode and the pre-calibrated flushing valve loss coefficient; performing a first simulation accuracy evaluation based on the initial hydraulic acquisition model of the automatic flushing drip irrigation system to obtain a hydraulic acquisition model of the automatic flushing drip irrigation system.

[0008] According to the automatic flushing drip irrigation method provided by the present invention, the constructing of the initial hydraulic acquisition model of the non-flushing drip irrigation system according to the pre-obtained water quality conditions, water source demand and pipe network layout data includes: obtaining the type and parameters of the emitter according to the pre-obtained water quality conditions and water source demand; constructing an emitter module according to the type and parameters of the emitter; constructing a non-flushing drip irrigation pipe network layout module according to the pre-obtained pipe network layout data; obtaining an initial hydraulic acquisition model of the non-flushing drip irrigation system according to the emitter module and the non-flushing drip irrigation pipe network layout module.

[0009] According to an automatic flushing drip irrigation method provided by the present invention, the second simulation accuracy evaluation is carried out based on the hydraulic acquisition model of the initial non-flushing drip irrigation system to obtain the hydraulic acquisition model of the non-flushing drip irrigation system, including: carrying out the second simulation accuracy evaluation based on the hydraulic acquisition model of the initial non-flushing drip irrigation system to obtain an evaluation result; comparing the evaluation result with a preset threshold, and based on the evaluation result being less than the preset threshold, taking the hydraulic acquisition model of the initial non-flushing drip irrigation system as the hydraulic acquisition model of the non-flushing drip irrigation system; otherwise, adjusting the water quality condition, the water source demand, and the pipe network layout data, and reconstructing the hydraulic acquisition model of the initial non-flushing drip irrigation system according to the adjusted water quality condition, water source demand, and pipe network layout data.

[0010] According to an automatic flushing drip irrigation method provided by the present invention, constructing an initial automatic flushing drip irrigation system hydraulic acquisition model according to the water quality condition, the water source demand, the pipe network layout data, the hydraulic acquisition model of the non-flushing drip irrigation system, the pre-acquired flushing valve layout pattern, and the pre-calibrated flushing valve head loss coefficient, including: obtaining the emitter type and parameters according to the water quality condition and the water source demand; obtaining the flushing duration per unit length of the drip tape according to the water quality condition and the emitter type and parameters; obtaining the flushing duration of the flushing valve according to the pipe network layout data, the flushing duration per unit length of the drip tape, and the pre-acquired flushing valve layout pattern; determining the flushing valve specification according to the flushing duration of the flushing valve; constructing an initial automatic flushing drip irrigation system hydraulic acquisition model according to the flushing valve specification, the flushing valve layout pattern, the hydraulic acquisition model of the non-flushing drip irrigation system, and the pre-calibrated flushing valve head loss coefficient.

[0011] According to an automatic flushing drip irrigation method provided by the present invention, constructing an initial non-flushing drip irrigation system hydraulic acquisition model according to the flushing valve specification, the flushing valve layout pattern, the hydraulic acquisition model of the non-flushing drip irrigation system, and the pre-calibrated flushing valve head loss coefficient, including: constructing an automatic flushing drip irrigation pipe network layout module according to the flushing valve layout pattern and the hydraulic acquisition model of the non-flushing drip irrigation system; constructing an automatic flushing valve module according to the flushing valve specification and the pre-calibrated flushing valve head loss coefficient; constructing an initial automatic flushing drip irrigation system hydraulic acquisition model according to the automatic flushing drip irrigation pipe network layout module and the automatic flushing valve module.

[0012] An automatic flushing drip irrigation method provided by the present invention, the first simulation accuracy evaluation is carried out based on the hydraulic acquisition model of the initial automatic flushing drip irrigation system to obtain the hydraulic acquisition model of the automatic flushing drip irrigation system, including: carrying out the first simulation accuracy evaluation based on the hydraulic acquisition model of the initial automatic flushing drip irrigation system to obtain an evaluation result; comparing the evaluation result with a preset condition, and based on the evaluation result meeting the preset condition, using the hydraulic acquisition model of the initial automatic flushing drip irrigation system as the hydraulic acquisition model of the automatic flushing drip irrigation system.

[0013] The present invention also provides an automatic flushing drip irrigation system, including: a data acquisition module for acquiring automatic flushing data; an automatic flushing drip irrigation system hydraulic acquisition module for inputting the automatic flushing data into the hydraulic acquisition model of the automatic flushing drip irrigation system to obtain the head water supply pressure and flow rate output by the hydraulic acquisition model of the automatic flushing drip irrigation system; wherein, the hydraulic acquisition model of the automatic flushing drip irrigation system is jointly constructed based on the pre-acquired water quality conditions, water source demand, pipe network layout data, flushing valve layout mode, hydraulic acquisition model of the non-flushing drip irrigation system and the pre-calibrated flushing valve loss coefficient, and is obtained through the first simulation accuracy evaluation and calibration; the hydraulic acquisition model of the non-flushing drip irrigation system is constructed based on the water quality conditions, the water source demand and the pipe network layout data, and is obtained through the second simulation accuracy evaluation.

[0014] The present invention also provides an electronic device, including a memory, a processor and a computer program stored on the memory and executable on the processor, and when the processor executes the program, the steps of the automatic flushing drip irrigation method as described in any one of the above are implemented.

[0015] The present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the automatic flushing drip irrigation method as described in any one of the above are implemented.

[0016] The present invention also provides a computer program product, including a computer program, and when the computer program is executed by a processor, the steps of the automatic flushing drip irrigation method as described in any one of the above are implemented.

[0017] The automatic flushing drip irrigation method and system provided by the present invention obtain the head water supply pressure and flow rate through the hydraulic acquisition model of the automatic flushing drip irrigation system constructed based on the water quality conditions, water source demand, hydraulic acquisition model of the non-flushing drip irrigation system and the preset flushing valve loss coefficient, and through the first simulation accuracy evaluation, so as to not only ensure the cleaning quality of the drip irrigation system, but also provide guarantee for the system operation, avoid the situation that the drip irrigation system is not flushed clean and the blockage enters the emitter, can reduce the blockage probability of the emitter, improve the anti-blocking ability of the emitter under the condition of unconventional water source drip irrigation, and improve the uniformity of drip irrigation fertilizer application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is one of the schematic flowcharts of the automatic flushing drip irrigation method provided by the present invention;

[0020] Figure 2 is the second schematic flowchart of the automatic flushing drip irrigation method provided by the present invention;

[0021] Figure 3 is the schematic flowchart of constructing the hydraulic acquisition model of the automatic flushing drip irrigation system provided by the present invention;

[0022] Figure 4 is the schematic diagram of the non-flushing drip irrigation pipe network layout module provided by the present invention;

[0023] Figure 5 is the schematic diagram of the automatic flushing drip irrigation pipe network layout module provided by the present invention;

[0024] Figure 6 is the schematic structural diagram of the automatic flushing drip irrigation system provided by the present invention;

[0025] Figure 7 is the schematic structural diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the present invention in conjunction with the drawings in the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present invention fall within the scope of protection of the present invention.

[0027] Figure 1 The schematic flowchart of the automatic flushing drip irrigation method of the present invention is shown, and the method includes:

[0028] S11, obtaining automatic flushing data;

[0029] S12. Input the automatic flushing data into the hydraulic acquisition model of the automatic flushing drip irrigation system to obtain the head water supply pressure and flow rate output by the hydraulic acquisition model of the automatic flushing drip irrigation system. Among them, the hydraulic acquisition model of the automatic flushing drip irrigation system is jointly constructed based on the pre-acquired water quality conditions, water source demand, pipe network layout data, flushing valve layout mode, hydraulic acquisition model of the non-automatic flushing drip irrigation system, and the pre-calibrated valve loss coefficient of the flushing valve, and is calibrated through the first simulation accuracy evaluation. The hydraulic acquisition model of the non-automatic flushing drip irrigation system is constructed based on the water quality conditions, water source demand, and pipe network layout data, and is obtained through the second simulation accuracy evaluation.

[0030] It should be noted that S1N in this specification does not represent the sequence of the automatic flushing drip irrigation method. The following specifically combines Figures 2 - 4 to describe in detail the automatic flushing drip irrigation method of the present invention.

[0031] Step S11. Obtain the automatic flushing data.

[0032] In this embodiment, the automatic flushing data includes the actual flushing duration of the flushing valve. Obtaining the automatic flushing data includes: obtaining the actual water quality conditions, actual water source demand, actual layout mode of the flushing valve, and actual pipe network layout data; obtaining the actual type and parameters of the emitter according to the actual water quality conditions and actual water source demand; obtaining the actual flushing duration per unit length of the drip tape according to the actual water quality conditions and the actual type and parameters of the emitter; obtaining the actual flushing duration of the flushing valve according to the actual pipe network layout data, actual layout mode of the flushing valve, and actual flushing duration per unit length of the drip tape.

[0033] It should be added that the actual water quality conditions include the actual pH value of the water source, total dissolved solids, total iron content, and total number of bacteria, etc. The actual water source demand refers to the actual soil texture and the water required by the crops, including the soil texture and the daily water required by the crops corresponding to the soil texture. The actual layout mode of the flushing valve includes the actual number of drip tapes m controlled by one flushing valve. The actual pipe network layout data includes the actual layout form and parameters of the pipe network. The parameters include the length l, inner diameter De, wall thickness, pipe roughness coefficient f of each level of pipeline corresponding to the pipe network layout form, and the pressure H at any node in the pipe network j , j ∈ (1,..., m), etc.; the actual type and parameters of the emitter include the actual type of the emitter and the rated water discharge q e 、flow coefficient k e 、flow pattern index x e .

[0034] In addition, the actual flushing duration of the drip irrigation tape per unit length represents the time required to actually wash away the clogging substances in the drip irrigation tape per unit length, which is mainly determined by the water quality conditions and the type and parameters of the irrigation emitter. The flushing duration required for the irrigation emitter not to be clogged under different water quality conditions can be obtained through practical experience, such as experiments or engineering practices. By inputting the actual flushing duration of the flushing valve into the hydraulic acquisition model of the automatic flushing drip irrigation system, the corresponding head water supply pressure and flow rate can be determined according to the actual flushing duration of the flushing valve corresponding to the actual water quality conditions.

[0035] Step S12, refer to Figure 2 , input the automatic flushing data into the hydraulic acquisition model of the automatic flushing drip irrigation system to obtain the head water supply pressure and flow rate output by the hydraulic acquisition model of the automatic flushing drip irrigation system. It should be noted that the hydraulic acquisition model of the automatic flushing drip irrigation system is jointly constructed based on the pre-acquired water quality conditions, water source demand, pipe network layout data, flushing valve layout mode, hydraulic acquisition model of the non-flushing drip irrigation system, and pre-calibrated flushing valve loss coefficient, and is calibrated through the first simulation accuracy evaluation; the hydraulic acquisition model of the non-flushing drip irrigation system is constructed based on the water quality conditions, water source demand, and pipe network layout data, and is obtained through the second simulation accuracy evaluation.

[0036] In an alternative embodiment, before inputting the automatic flushing data into the hydraulic acquisition model of the automatic flushing drip irrigation system, it includes: constructing the hydraulic acquisition model of the automatic flushing drip irrigation system. Specifically, constructing the hydraulic acquisition model of the automatic flushing drip irrigation system includes: constructing an initial hydraulic acquisition model of the non-flushing drip irrigation system according to the pre-acquired water quality conditions, water source demand, and pipe network layout data; performing the second simulation accuracy evaluation based on the initial hydraulic acquisition model of the non-flushing drip irrigation system to obtain the hydraulic acquisition model of the non-flushing drip irrigation system; constructing an initial hydraulic acquisition model of the automatic flushing drip irrigation system according to the water quality conditions, water source demand, the pipe network layout data, the hydraulic acquisition model of the non-flushing drip irrigation system, the pre-acquired flushing valve layout mode, and the pre-calibrated flushing valve loss coefficient; performing the first simulation accuracy evaluation based on the initial hydraulic acquisition model of the automatic flushing drip irrigation system to obtain the hydraulic acquisition model of the automatic flushing drip irrigation system. Further, refer to Figure 3 :

[0037] First, construct an initial hydraulic acquisition model of the non-flushing drip irrigation system according to the pre-acquired water quality conditions, water source demand, and pipe network layout data, specifically including: obtaining the type and parameters of the irrigation emitter according to the pre-acquired water quality conditions and water source demand; constructing an irrigation emitter module according to the type and parameters of the irrigation emitter; constructing a non-flushing drip irrigation pipe network layout module according to the pre-acquired pipe network layout data; obtaining the initial hydraulic acquisition model of the non-flushing drip irrigation system according to the irrigation emitter module and the non-flushing drip irrigation pipe network layout module.

[0038] It should be noted that according to the pre-obtained water quality conditions and water source demand, the type and parameters of the irrigation emitter can be obtained as described in the previous text. The pipe network layout data includes the pipe network layout form and parameters, which can be specifically referred to as described in the previous text and will not be repeated here. It should be noted that when constructing the non-flushing drip irrigation pipe network layout module, a non-flushing drip irrigation pipe network system can be constructed based on the pipe network layout form and corresponding parameters can be input to obtain the non-flushing drip irrigation pipe network layout module.

[0039] For example, if the EPANET software is used to construct the above-mentioned initial non-flushing drip irrigation system hydraulic acquisition model, the non-flushing drip irrigation pipe network layout module can be constructed using the above-mentioned pipe network layout data in EPANET. In the EPANET software, the water source uses the "reservoir" module, the main pipe, branch pipes and drip tapes use the "pipe segment" module, and the ball valves and connecting elbows use the "pipe segment" module. Their local head losses can be set in the pipe segment properties. Among them, a non-flushing drip irrigation pipe network layout module constructed in the above manner can be referred to Figure 4 .

[0040] The irrigation emitter module can be set according to the type and parameters of the irrigation emitter, that is, the flow coefficient k e and the flow regime index x e in the type and parameters of the irrigation emitter are input to obtain the irrigation emitter module. It should be noted that the type and parameters of the irrigation emitter are determined by water quality conditions, water source demand, etc. It is necessary to meet the reliability of use under different water quality conditions, that is, anti-clogging and anti-failure performance, and also need to meet the percentage of wetted area. For example, if the water source water quality contains more clogging substances, it is necessary to select an irrigation emitter with a larger rated water output flow q e ; for another example, for sandy soil, an irrigation emitter with a smaller rated water output flow q e can be selected; for another example, for crops with a large water consumption (such as fruit trees), it is necessary to select an irrigation emitter with a larger rated water output flow q e . It should be noted that the lower the selection of the flow regime index x e , the better, that is, the lower the sensitivity of the irrigation emitter to the change of system pressure and the higher the system irrigation uniformity.

[0041] In an alternative embodiment, an initial non-flushing drip irrigation system hydraulic acquisition model is constructed based on the EPANET software. Accordingly, it is necessary to perform data conversion on the obtained type and parameters of the irrigation emitter to make it suitable for use in the EPANET software. It should be noted that if other software is used for construction, the corresponding data will be converted into a data format suitable for the corresponding software, which will not be further limited here.

[0042] Secondly, based on the initial hydraulic acquisition model of the non-flushing drip irrigation system, a second simulation accuracy evaluation is carried out to obtain the hydraulic acquisition model of the non-flushing drip irrigation system (NFDM), which specifically includes: carrying out a second simulation accuracy evaluation based on the initial hydraulic acquisition model of the non-flushing drip irrigation system to obtain the evaluation result; comparing the evaluation result with a preset threshold, and based on the evaluation result being less than the preset threshold, taking the initial hydraulic acquisition model of the non-flushing drip irrigation system as the hydraulic acquisition model of the non-flushing drip irrigation system; otherwise, adjusting the water quality conditions, water source demand and pipe network layout data, and reconstructing the initial hydraulic acquisition model of the non-flushing drip irrigation system according to the adjusted water quality conditions, water source demand and pipe network layout data.

[0043] It should be noted that carrying out a second simulation accuracy evaluation based on the initial hydraulic acquisition model of the non-flushing drip irrigation system to obtain the evaluation result includes: based on different water source supply pressures H in , extracting the inlet pressures H e and rated water outlet flows q e of several emitters in the corresponding initial hydraulic acquisition model of the non-flushing drip irrigation system; comparing the extracted inlet pressures H e and rated water outlet flows q e with the measured values to obtain the evaluation result; among them, the evaluation result includes the first evaluation result obtained by comparing the extracted inlet pressure H e with the corresponding measured value and the second evaluation result obtained by comparing the extracted rated water outlet flow q e with the measured value.

[0044] The evaluation result is expressed as:

[0045]

[0046] Among them, f(x) represents the evaluation result. When the evaluation object is the inlet pressure H e , the first evaluation result f(H e ) is obtained. Similarly, when the evaluation object is the rated water outlet flow q e , the second evaluation result f(q e ) is obtained; S i represents the simulated value when the system inlet pressure is H ini , E i is the measured value when the system inlet pressure is H ini , E m represents the average value of the measured values under all system inlet pressures H ini , and n is the number of measured values.

[0047] It should be noted that when comparing the evaluation result with the preset threshold, f(H e ) and f(q e) must be less than the preset threshold, indicating that the hydraulic acquisition model (NFDM) of the non-flushing drip irrigation system has passed the second simulation accuracy evaluation and calibration, with high simulation accuracy; f(H e ) or f(q e ) is greater than the preset threshold, indicating that there are errors in the layout form and parameters of the drip irrigation system pipe network, the types and parameters of the emitters, and other parameter settings in the EPANET software. It is necessary to return to check and adjust the water quality conditions, water source demand, and pipe network layout data until f(H e ) and f(q e ) are both less than the preset threshold. In addition, the preset threshold can be set according to actual design requirements and prior experience, and no further limitation is made here. For example, it can be set to 10%.

[0048] Subsequently, based on the water quality conditions, water source demand, pipe network layout data, the hydraulic acquisition model (NFDM) of the non-flushing drip irrigation system, the pre-obtained flushing valve layout pattern, and the pre-calibrated flushing valve head loss coefficient, an initial hydraulic acquisition model of the automatic flushing drip irrigation system is constructed, including: obtaining the type and parameters of the emitter according to the water quality conditions and water source demand; obtaining the flushing duration per unit length of the drip tape according to the water quality conditions and the type and parameters of the emitter; obtaining the flushing duration of the flushing valve according to the pipe network layout data, the flushing duration per unit length of the drip tape, and the pre-obtained flushing valve layout pattern; determining the flushing valve specification according to the flushing duration of the flushing valve; and constructing an initial hydraulic acquisition model of the automatic flushing drip irrigation system according to the flushing valve specification, the flushing valve layout pattern, the hydraulic acquisition model of the non-flushing drip irrigation system, and the pre-calibrated flushing valve head loss coefficient.

[0049] Furthermore, when obtaining the flushing duration of the flushing valve according to the pipe network layout data, the flushing duration per unit length of the drip tape, and the pre-obtained flushing valve layout pattern, specifically, the flushing duration of the flushing valve is obtained according to the length of one drip tape in the pipe network layout data, the flushing duration per unit length of the corresponding drip tape, and the pre-obtained flushing valve layout pattern. The flushing duration of the flushing valve is mainly the flushing duration index of the flushing valve, expressed as:

[0050] FD = m × T × l 毛 (2)

[0051] In the formula: FD represents the flushing duration index of the flushing valve, m represents the number of drip tapes controlled by one flushing valve, T represents the flushing duration per unit length of the drip tape, and l 毛 represents the length of the drip tape.

[0052] In addition, an initial hydraulic acquisition model of the non-flushing drip irrigation system is constructed according to the flushing valve specifications, the flushing valve layout mode, the hydraulic acquisition model of the non-flushing drip irrigation system, and the pre-calibrated flushing valve loss coefficient, including: constructing an automatic flushing drip irrigation pipe network layout module according to the flushing valve layout mode and the hydraulic acquisition model of the non-flushing drip irrigation system; constructing an automatic flushing valve module according to the flushing valve specifications and the pre-calibrated flushing valve loss coefficient; and constructing an initial automatic flushing drip irrigation system hydraulic acquisition model according to the automatic flushing drip irrigation pipe network layout module and the automatic flushing valve module. It should be noted that the flushing valve specifications include the automatic flushing valve FD-H a quadratic function regression model, FQ-H a power function regression model (FQ is the flushing flow rate), FQ-H a The coefficient in the power function is the flushing valve flow coefficient k a , and the exponent is the flushing valve flow regime exponent x a . In addition, taking the example of one flushing valve controlling two drip tapes, the constructed automatic flushing drip irrigation pipe network layout module can refer to Figure 5 .

[0053] In an alternative embodiment, an automatic flushing valve module is constructed according to the flushing valve specifications and the pre-calibrated flushing valve loss coefficient, including: constructing an emitter module using the FQ-H a power function regression model of the flushing valve based on the flushing valve specifications; constructing a flushing valve module based on the pre-calibrated flushing valve loss coefficient; and obtaining the automatic flushing valve module based on the emitter module and the flushing valve module.

[0054] It should be noted that when using EPANET software to construct the hydraulic acquisition model of the automatic flushing drip irrigation system, since the flushing valve can be regarded as an emitter unit with a large water output, the emitter module in EPANET software can be directly used to represent it. In addition, in EPANET software, only one flow regime exponent can be input for all emitter modules. Therefore, based on the flushing valve specifications, x a is unified as x e , that is, x a ′ = x e , and the corresponding k a ′ is calculated, so that x a ′ and k a ′ are input into EPANET software to construct the automatic flushing valve module.

[0055] It should be noted that by adjusting the flushing valve loss coefficient F a (i.e., the head loss coefficient of the valve), the valve state at different openings is simulated to control the magnitude of the local head loss generated at the valve.

[0056] In addition, F aIt needs to be obtained in advance according to the hydraulic performance calibration of the automatic flushing valve. How to calibrate F a The process of obtaining the evaluation results can be referred to the following text, and no further elaboration will be made here.

[0057] In an alternative embodiment, an initial hydraulic acquisition model of the automatic flushing drip irrigation system is constructed based on EPANET software. Correspondingly, data conversion needs to be performed on the obtained flushing valve specifications to make them applicable to the use of EPANET software. It should be noted that if other software is used for construction, the data will be correspondingly converted into a data format applicable to the corresponding software, and no further limitation will be made here.

[0058] Finally, a first simulation accuracy evaluation is performed based on the initial hydraulic acquisition model of the automatic flushing drip irrigation system to obtain the hydraulic acquisition model of the automatic flushing drip irrigation system (AFDM), including: performing a first simulation accuracy evaluation based on the initial hydraulic acquisition model of the automatic flushing drip irrigation system to obtain an evaluation result; comparing the evaluation result with a preset condition, and based on the evaluation result meeting the preset condition, taking the initial hydraulic acquisition model of the automatic flushing drip irrigation system as the hydraulic acquisition model of the automatic flushing drip irrigation system.

[0059] In this embodiment, a first simulation accuracy evaluation is performed based on the initial hydraulic acquisition model of the automatic flushing drip irrigation system to obtain an evaluation result, including: simulating and obtaining different flushing valve head loss coefficients F a The corresponding inlet pressure H of the automatic flushing valve a and the flushing flow rate FQ; comparing the different H a corresponding to F a and FQ with their corresponding measured values respectively to obtain the first evaluation result corresponding to H a with F a as the independent variable and the second evaluation result corresponding to FQ; combining the first evaluation result and the second evaluation result to determine the optimal value of F a as the calibrated F a . Specifically:

[0060] First, use the following formulas (3) and (4) to simulate and obtain different flushing valve head loss coefficients F a under the H a and FQ.

[0061] H a = g(F ai ) (3)

[0062] FQ = h(F ai ) (4)

[0063] In the formula: F aiDenote the \(i\)-th \(F\) selected from the value range a , and the value range can be set according to prior experience or actual design requirements. For example, it can be [1.04, 104], and \(g(F ai )\) represents \(H a \) and the mathematical regression model of \(F a , and \(h(F ai )\) represents the mathematical regression model of \(FQ\) and \(F a .

[0064] Secondly, calculate the obtained \(H a \) and \(FQ\) using formula (1) to obtain the first evaluation result \(f(H a )\) and the second evaluation result \(f(FQ)\) of the corresponding flush valve valve loss coefficient \(F a .

[0065] Finally, use formulas (5)-(7), through the weight coefficients \(a\) and \(b\), to determine the flush valve valve loss coefficient \(F a \) corresponding to \(G(x)=\min\), which is the calibrated flush valve valve loss coefficient. Among them, the determination method of \(G(x)=\min\) can be obtained by taking the derivative, that is, \(G′(x)=0\).

[0066] a + b = 1 (5)

[0067] G(x)=af(H a )+bf(FQ) (6)

[0068] G′(x)=0 (7)

[0069] In the formula: \(G(x)\) represents the evaluation result; \(a\), \(b\) represent the weight coefficients, \(f(H a )\) represents the first evaluation result, and \(f(FQ)\) represents the second evaluation result.

[0070] In an alternative embodiment, when comparing the evaluation result with the preset conditions, if the evaluation result meets the preset conditions, it indicates that the AFDM has passed the first simulation accuracy evaluation and calibration, and the simulation accuracy is high; if the evaluation result does not meet the preset conditions, it is necessary to return to check and adjust the preset flush valve valve loss coefficient, flush valve specifications, and the hydraulic acquisition model of the non-flush drip irrigation system. In addition, the preset conditions can be set according to actual design requirements and prior experience, and no further limitation is made here. For example, it can be set that \(G(x)\) is less than 10%.

[0071] When the flush valve valve loss coefficient \(F aAfter determination, the pipe network layout form of other projects can be constructed by using the well-defined AFDM, and the automatic flushing data required for the project can be input to obtain the water supply conditions at the head that meet the flushing duration of the drip irrigation tape and the pressure and flow required for the automatic operation of the flushing valve, so as to guide the engineering design and construction of the automatic flushing drip irrigation system. The automatic flushing drip irrigation system designed based on this can improve the anti-clogging ability of the emitter under the drip irrigation conditions of unconventional water sources and improve the uniformity of drip irrigation water and fertilizer application.

[0072] In summary, the hydraulic acquisition model of the automatic flushing drip irrigation system in the embodiment of the present invention is constructed based on the water quality conditions, water source demand, hydraulic acquisition model of the non-flushing drip irrigation system, and preset flushing valve valve loss coefficient, and is calibrated through the first simulation accuracy evaluation. By using this model to obtain the water supply pressure and flow at the head, it can not only ensure the cleaning quality of the drip irrigation system, but also provide guarantee for the system operation, avoid the situation that the drip irrigation system is not flushed clean and the blockage enters the emitter, reduce the blockage probability of the emitter, improve the anti-clogging ability of the emitter under the drip irrigation conditions of unconventional water sources, and improve the uniformity of drip irrigation water and fertilizer application.

[0073] The automatic flushing drip irrigation system provided by the present invention will be described below. The automatic flushing drip irrigation system described below can be correspondingly referred to the automatic flushing drip irrigation method described above.

[0074] Figure 6 The structural schematic diagram of an automatic flushing drip irrigation system is shown. The system includes:

[0075] A data acquisition module 61 for acquiring automatic flushing data;

[0076] A hydraulic acquisition module 62 of the automatic flushing drip irrigation system, which inputs the automatic flushing data into the hydraulic acquisition model of the automatic flushing drip irrigation system to obtain the water supply pressure and flow output by the hydraulic acquisition model of the automatic flushing drip irrigation system. Among them, the hydraulic acquisition model of the automatic flushing drip irrigation system is jointly constructed based on the pre-acquired water quality conditions, water source demand, pipe network layout data, flushing valve layout mode, hydraulic acquisition model of the non-flushing drip irrigation system, and pre-calibrated flushing valve valve loss coefficient, and is calibrated through the first simulation accuracy evaluation. The hydraulic acquisition model of the non-flushing drip irrigation system is constructed based on the water quality conditions, water source demand, and pipe network layout data, and is obtained through the second simulation accuracy evaluation.

[0077] In this embodiment, the automatic flushing data includes the actual flushing duration of the flushing valve. The data acquisition module 61 includes: a data acquisition unit that acquires the actual water quality conditions, actual water source demand, actual layout mode of the flushing valve, and actual layout data of the pipe network; an emitter type and parameter acquisition unit that obtains the actual emitter type and parameters according to the actual water quality conditions and actual water source demand; a flushing duration acquisition unit that obtains the actual flushing duration per unit length of the drip irrigation tape according to the actual water quality conditions and the actual emitter type and parameters; and a flushing duration determination unit that obtains the actual flushing duration of the flushing valve according to the actual layout data of the pipe network, the actual layout mode of the flushing valve, and the actual flushing duration per unit length of the drip irrigation tape. It should be noted that by using the actual flushing duration of the flushing valve as a condition and inputting it into the hydraulic acquisition model of the automatic flushing drip irrigation system, the corresponding head water supply pressure and flow rate can be determined according to the actual flushing duration of the flushing valve corresponding to the actual water quality conditions.

[0078] The hydraulic acquisition module 62 of the automatic flushing drip irrigation system includes: a data input unit that inputs the flushing data into the hydraulic acquisition model of the automatic flushing drip irrigation system; a hydraulic acquisition unit of the automatic flushing drip irrigation system that obtains the head water supply pressure and flow rate based on the hydraulic acquisition model of the automatic flushing drip irrigation system; and a data output unit that outputs the obtained head water supply pressure and flow rate from the hydraulic acquisition model of the automatic flushing drip irrigation system.

[0079] In an alternative embodiment, the system further includes: a model construction module that constructs a hydraulic acquisition model of the automatic flushing drip irrigation system before inputting the automatic flushing data into the hydraulic acquisition model of the automatic flushing drip irrigation system.

[0080] The model construction module includes: a first model construction unit that constructs an initial hydraulic acquisition model of the drip irrigation system without flushing according to the pre-acquired water quality conditions, water source demand, and pipe network layout data; a first evaluation unit that performs a second simulation accuracy evaluation based on the initial hydraulic acquisition model of the drip irrigation system without flushing to obtain a hydraulic acquisition model of the drip irrigation system without flushing; a second model construction unit that constructs an initial hydraulic acquisition model of the drip irrigation system without flushing according to the pre-acquired water quality conditions, water source demand, and pipe network layout data; and a second evaluation unit that performs a first simulation accuracy evaluation based on the initial hydraulic acquisition model of the automatic flushing drip irrigation system to obtain a hydraulic acquisition model of the automatic flushing drip irrigation system.

[0081] The first model construction unit includes: a first irrigation emitter type and parameter acquisition subunit, which obtains the irrigation emitter type and parameters according to the pre-acquired water quality conditions and water source demand; a first irrigation emitter module construction subunit, which constructs an irrigation emitter module according to the irrigation emitter type and parameters; a non-flushing drip irrigation pipe network layout module construction subunit, which constructs a non-flushing drip irrigation pipe network layout module according to the pre-acquired pipe network layout data; a first model construction subunit, which obtains an initial non-flushing drip irrigation system hydraulic acquisition model according to the irrigation emitter module and the non-flushing drip irrigation pipe network layout module. It should be noted that when constructing the non-flushing drip irrigation pipe network layout module, a non-flushing drip irrigation pipe network system can be constructed based on the pipe network layout form and corresponding parameters can be input to obtain the non-flushing drip irrigation pipe network layout module.

[0082] The first evaluation unit includes: a simulation evaluation subunit, which conducts a second simulation accuracy evaluation based on the initial non-flushing drip irrigation system hydraulic acquisition model to obtain an evaluation result; a first comparison subunit, which compares the evaluation result with a preset threshold, and based on the evaluation result being less than the preset threshold, takes the initial non-flushing drip irrigation system hydraulic acquisition model as the non-flushing drip irrigation system hydraulic acquisition model; otherwise, adjusts the water quality conditions, water source demand, and pipe network layout data, and reconstructs the initial non-flushing drip irrigation system hydraulic acquisition model according to the adjusted water quality conditions, water source demand, and pipe network layout data.

[0083] Furthermore, the simulation evaluation subunit includes: a data acquisition grandchild unit, which extracts the inlet pressure H in of several irrigation emitters in the corresponding initial non-flushing drip irrigation system hydraulic acquisition module based on different water source supply pressures H e and the rated water output flow rate q e ; a simulation evaluation grandchild unit, which compares the extracted inlet pressure H e and the rated water output flow rate q e with the measured values to obtain an evaluation result; among them, the evaluation result includes a first evaluation result obtained by comparing the extracted inlet pressure H e with the corresponding measured value and a second evaluation result obtained by comparing the extracted rated water output flow rate q e with the measured value.

[0084] The second model construction unit includes: a second irrigation device type and parameter acquisition subunit, which obtains the irrigation device type and parameters according to the water quality conditions and water source demand; a first flushing duration acquisition subunit, which obtains the flushing duration per unit length of drip irrigation tape according to the water quality conditions and the irrigation device type and parameters; a second flushing duration acquisition subunit, which obtains the flushing valve flushing duration according to the pipe network layout data, the flushing duration per unit length of drip irrigation tape, and the pre-acquired flushing valve layout pattern; a flushing valve specification acquisition subunit, which determines the flushing valve specification according to the flushing valve flushing duration; and a second model construction subunit, which constructs an initial automatic flushing drip irrigation system hydraulic acquisition model according to the flushing valve specification, the flushing valve layout pattern, the hydraulic acquisition model of the non-flushing drip irrigation system, and the pre-calibrated flushing valve loss coefficient.

[0085] Furthermore, the second model construction subunit includes: a great-grandson unit for constructing an automatic flushing drip irrigation pipe network layout module, which constructs an automatic flushing drip irrigation pipe network layout module according to the flushing valve layout pattern and the hydraulic acquisition model of the non-flushing drip irrigation system; a great-grandson unit for constructing an automatic flushing valve module, which constructs an automatic flushing valve module according to the flushing valve specification and the pre-calibrated flushing valve loss coefficient; and a great-grandson unit for constructing the second model, which constructs an initial automatic flushing drip irrigation system hydraulic acquisition model according to the automatic flushing drip irrigation pipe network layout module and the automatic flushing valve module.

[0086] In an alternative embodiment, the great-grandson unit for constructing the automatic flushing valve module includes: a great-great-grandson unit for constructing an irrigation device module, which constructs an irrigation device module based on the flushing valve specification and using the flushing valve FQ-H a power function regression model; a great-great-grandson unit for constructing a flushing valve valve module, which constructs a flushing valve valve module based on the pre-calibrated flushing valve loss coefficient; and a great-grandson unit for constructing the automatic flushing valve module, which obtains the automatic flushing valve module based on the irrigation device module and the flushing valve valve module.

[0087] The second evaluation unit includes: a simulation evaluation subunit, which performs a first simulation accuracy evaluation based on the initial automatic flushing drip irrigation system hydraulic acquisition model to obtain an evaluation result; and a second comparison subunit, which compares the evaluation result with a preset condition, and based on the evaluation result meeting the preset condition, uses the initial automatic flushing drip irrigation system hydraulic acquisition model as the automatic flushing drip irrigation system hydraulic acquisition model.

[0088] Specifically, the simulation evaluation subunit includes: a great-grandson unit for obtaining simulation data, which simulates and obtains the inlet pressure H of the automatic flushing valve corresponding to different flushing valve loss coefficients based on the initial automatic flushing drip irrigation system hydraulic acquisition model a and the flushing flow rate FQ; a great-grandson unit for comparison, which compares the H a and FQ corresponding to different flushing valve loss coefficients with their respective measured values to obtain, with F a as the independent variable, the corresponding Ha The first evaluation result and the second evaluation result corresponding to FQ; comprehensively evaluate the Sun unit, and determine F by combining the first evaluation result and the second evaluation result a The optimal value of, as the calibrated F a .

[0089] The second comparison subunit further includes: based on the evaluation result not meeting the preset conditions, return to check and adjust the preset flushing valve valve loss coefficient, flushing valve specification, and the hydraulic acquisition model of the non-flushing drip irrigation system.

[0090] In summary, the hydraulic acquisition module of the automatic flushing drip irrigation system in the embodiment of the present invention obtains the head supply pressure and flow rate through the automatic flushing drip irrigation system hydraulic acquisition model constructed based on water quality conditions, water source demand, the hydraulic acquisition model of the non-flushing drip irrigation system, and the preset flushing valve valve loss coefficient and obtained through the first simulation accuracy evaluation. This not only ensures the cleaning quality of the drip irrigation system but also provides guarantee for system operation, avoids the situation that the drip irrigation system is not flushed clean and the blockage enters the emitter, reduces the blockage probability of the emitter, improves the anti-blocking ability of the emitter under the condition of drip irrigation with unconventional water sources, and improves the uniformity of drip irrigation water and fertilizer application.

[0091] Figure 7 Illustrates a schematic physical structure diagram of an electronic device, such as Figure 7 shown. The electronic device may include: a processor 71, a communication interface 72, a memory 73, and a communication bus 74. Among them, the processor 71, the communication interface 72, and the memory 73 complete communication with each other through the communication bus 74. The processor 71 can call the logical instructions in the memory 73 to execute the automatic flushing drip irrigation method, which includes: obtaining automatic flushing data; inputting the automatic flushing data into the automatic flushing drip irrigation system hydraulic acquisition model to obtain the head supply pressure and flow rate output by the automatic flushing drip irrigation system hydraulic acquisition model; wherein, the automatic flushing drip irrigation system hydraulic acquisition model is jointly constructed based on water quality conditions, water source demand, pipe network layout data, flushing valve layout mode, the hydraulic acquisition model of the non-flushing drip irrigation system, and the pre-calibrated flushing valve valve loss coefficient, and is obtained through the first simulation accuracy evaluation; the hydraulic acquisition model of the non-flushing drip irrigation system is constructed based on water quality conditions, water source demand, and pipe network layout data, and is obtained through the second simulation accuracy evaluation.

[0092] In addition, when the logical instructions in the above-mentioned memory 73 are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0093] On the other hand, the present invention also provides a computer program product. The computer program product includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the automatic flushing drip irrigation method provided by the above-mentioned various methods. The method includes: obtaining automatic flushing data; inputting the automatic flushing data into the hydraulic acquisition model of the automatic flushing drip irrigation system to obtain the head water supply pressure and flow rate output by the hydraulic acquisition model of the automatic flushing drip irrigation system. Among them, the hydraulic acquisition model of the automatic flushing drip irrigation system is jointly constructed based on water quality conditions, water source demand, pipe network layout data, flushing valve layout mode, the hydraulic acquisition model of the non-flushing drip irrigation system, and a pre-calibrated flushing valve loss coefficient, and is obtained through the first simulation accuracy evaluation and calibration; the hydraulic acquisition model of the non-flushing drip irrigation system is constructed based on water quality conditions, water source demand, and pipe network layout data, and is obtained through the second simulation accuracy evaluation.

[0094] On another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it realizes the automatic flushing drip irrigation method provided by the above-mentioned various methods. The method includes: obtaining automatic flushing data; inputting the automatic flushing data into the hydraulic acquisition model of the automatic flushing drip irrigation system to obtain the head water supply pressure and flow rate output by the hydraulic acquisition model of the automatic flushing drip irrigation system. Among them, the hydraulic acquisition model of the automatic flushing drip irrigation system is jointly constructed based on water quality conditions, water source demand, pipe network layout data, flushing valve layout mode, the hydraulic acquisition model of the non-flushing drip irrigation system, and a pre-calibrated flushing valve loss coefficient, and is obtained through the first simulation accuracy evaluation and calibration; the hydraulic acquisition model of the non-flushing drip irrigation system is constructed based on water quality conditions, water source demand, and pipe network layout data, and is obtained through the second simulation accuracy evaluation.

[0095] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. A person of ordinary skill in the art can understand and implement it without creative work.

[0096] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic flushing drip irrigation method, characterized in that, Including: Obtaining automatic flushing data; Inputting the automatic flushing data into a hydraulic acquisition model of an automatic flushing drip irrigation system to obtain the head water supply pressure and flow rate output by the hydraulic acquisition model of the automatic flushing drip irrigation system; wherein, the hydraulic acquisition model of the automatic flushing drip irrigation system is jointly constructed based on the pre-acquired water quality conditions, water source demand, pipe network layout data, flushing valve layout mode, hydraulic acquisition model of a non-flushing drip irrigation system and pre-calibrated flushing valve loss coefficient, and is calibrated through a first simulation accuracy evaluation; the hydraulic acquisition model of the non-flushing drip irrigation system is constructed based on the water quality conditions, the water source demand and the pipe network layout data, and is obtained through a second simulation accuracy evaluation; Constructing the hydraulic acquisition model of the automatic flushing drip irrigation system includes: Constructing an initial hydraulic acquisition model of a non-flushing drip irrigation system according to the pre-acquired water quality conditions, water source demand and pipe network layout data; Performing a second simulation accuracy evaluation based on the initial hydraulic acquisition model of the non-flushing drip irrigation system to obtain a hydraulic acquisition model of the non-flushing drip irrigation system; Constructing an initial hydraulic acquisition model of the automatic flushing drip irrigation system according to the water quality conditions, the water source demand, the pipe network layout data, the hydraulic acquisition model of the non-flushing drip irrigation system, the pre-acquired flushing valve layout mode and the pre-calibrated flushing valve loss coefficient; Performing a first simulation accuracy evaluation based on the initial hydraulic acquisition model of the automatic flushing drip irrigation system to obtain a hydraulic acquisition model of the automatic flushing drip irrigation system.

2. The automatic flushing drip irrigation method according to claim 1, wherein The constructing an initial hydraulic acquisition model of a non-flushing drip irrigation system according to the pre-acquired water quality conditions, water source demand and pipe network layout data includes: Obtaining the type and parameters of the emitter according to the pre-acquired water quality conditions and water source demand; Constructing an emitter module according to the type and parameters of the emitter; Constructing a non-flushing drip irrigation pipe network layout module according to the pre-acquired pipe network layout data; Obtaining an initial hydraulic acquisition model of the non-flushing drip irrigation system according to the emitter module and the non-flushing drip irrigation pipe network layout module.

3. The automatic flushing drip irrigation method according to claim 1, wherein The performing a second simulation accuracy evaluation based on the initial hydraulic acquisition model of the non-flushing drip irrigation system to obtain a hydraulic acquisition model of the non-flushing drip irrigation system includes: Performing a second simulation accuracy evaluation based on the initial hydraulic acquisition model of the non-flushing drip irrigation system to obtain an evaluation result; Comparing the evaluation result with a preset threshold, and based on the evaluation result being less than the preset threshold, taking the initial hydraulic acquisition model of the non-flushing drip irrigation system as the hydraulic acquisition model of the non-flushing drip irrigation system; otherwise, adjusting the water quality conditions, the water source demand and the pipe network layout data, and reconstructing the initial hydraulic acquisition model of the non-flushing drip irrigation system according to the adjusted water quality conditions, water source demand and pipe network layout data.

4. The automatic flushing drip irrigation method according to claim 1, characterized in that, The constructing an initial hydraulic acquisition model of the automatic flushing drip irrigation system according to the water quality conditions, the water source demand, the pipe network layout data, the hydraulic acquisition model of the non-flushing drip irrigation system, the pre-acquired flushing valve layout mode and the pre-calibrated flushing valve loss coefficient includes: Based on the water quality conditions and the water source demand, obtain the type and parameters of the irrigation emitter; Based on the water quality conditions and the type and parameters of the irrigation emitter, obtain the flushing duration per unit length of the drip irrigation tape; Based on the pipe network layout data, the flushing duration per unit length of the drip irrigation tape, and the pre-obtained flushing valve layout pattern, obtain the flushing duration of the flushing valve; Determine the flushing valve specification according to the flushing duration of the flushing valve; Based on the flushing valve specification, the flushing valve layout pattern, the hydraulic acquisition model of the non-flushing drip irrigation system, and the pre-calibrated valve loss coefficient of the flushing valve, construct an initial hydraulic acquisition model of the automatic flushing drip irrigation system.

5. The automatic flushing drip irrigation method according to claim 4, characterized in that, The constructing an initial hydraulic acquisition model of the non-flushing drip irrigation system based on the flushing valve specification, the flushing valve layout pattern, the hydraulic acquisition model of the non-flushing drip irrigation system, and the pre-calibrated valve loss coefficient of the flushing valve includes: Based on the flushing valve layout pattern and the hydraulic acquisition model of the non-flushing drip irrigation system, construct an automatic flushing drip irrigation pipe network layout module; Based on the flushing valve specification and the pre-calibrated valve loss coefficient of the flushing valve, construct an automatic flushing valve module; Based on the automatic flushing drip irrigation pipe network layout module and the automatic flushing valve module, construct an initial hydraulic acquisition model of the automatic flushing drip irrigation system.

6. The automatic flushing drip irrigation method according to claim 1, characterized in that, The first simulation accuracy evaluation based on the initial hydraulic acquisition model of the automatic flushing drip irrigation system to obtain the hydraulic acquisition model of the automatic flushing drip irrigation system includes: Conduct a first simulation accuracy evaluation based on the initial hydraulic acquisition model of the automatic flushing drip irrigation system to obtain an evaluation result; Compare the evaluation result with the preset conditions, and based on the evaluation result meeting the preset conditions, use the initial hydraulic acquisition model of the automatic flushing drip irrigation system as the hydraulic acquisition model of the automatic flushing drip irrigation system.

7. An automatic flushing drip irrigation system, characterized in that Includes: A data acquisition module that acquires automatic flushing data; An automatic flushing drip irrigation system hydraulic acquisition module that inputs the automatic flushing data into the hydraulic acquisition model of the automatic flushing drip irrigation system to obtain the head water supply pressure and flow rate output by the hydraulic acquisition model of the automatic flushing drip irrigation system; wherein, the hydraulic acquisition model of the automatic flushing drip irrigation system is jointly constructed based on the pre-obtained water quality conditions, water source demand, pipe network layout data, flushing valve layout pattern, hydraulic acquisition model of the non-flushing drip irrigation system, and pre-calibrated valve loss coefficient of the flushing valve, and is calibrated through the first simulation accuracy evaluation; the hydraulic acquisition model of the non-flushing drip irrigation system is constructed based on the water quality conditions, the water source demand, and the pipe network layout data, and is obtained through the second simulation accuracy evaluation; The system further includes: A model construction module that constructs a hydraulic acquisition model of the automatic flushing drip irrigation system before inputting the automatic flushing data into the hydraulic acquisition model of the automatic flushing drip irrigation system; The model construction module includes: A first model construction unit that constructs an initial hydraulic acquisition model of the non-flushing drip irrigation system according to the pre-obtained water quality conditions, water source demand, and pipe network layout data; A first evaluation unit that conducts a second simulation accuracy evaluation based on the initial hydraulic acquisition model of the non-flushing drip irrigation system to obtain a hydraulic acquisition model of the non-flushing drip irrigation system; The second model construction unit constructs an initial hydraulic acquisition model of the automatic flushing drip irrigation system according to the water quality conditions, the water source demand, the pipe network layout data, the hydraulic acquisition model of the non-flushing drip irrigation system, the pre-acquired flushing valve layout pattern, and the pre-calibrated valve loss coefficient of the flushing valve; The second evaluation unit performs a first simulation accuracy evaluation based on the initial hydraulic acquisition model of the automatic flushing drip irrigation system to obtain a hydraulic acquisition model of the automatic flushing drip irrigation system.

8. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the program, the steps of the automatic flushing drip irrigation system method according to any one of claims 1 to 6 are implemented.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, the steps of the automatic flushing drip irrigation method according to any one of claims 1 to 6 are implemented.

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