Water conservancy water-saving irrigation method based on data analysis

Abstract

The invention discloses a water conservancy water-saving irrigation method based on data analysis, relates to the technical field of agricultural irrigation, and solves the problems that current water conservancy water-saving irrigation often depends on fixed irrigation parameters and a simple linear model, and the utilization degree of real-time environment data and soil drainage conditions is low. The method comprises the following steps: acquiring real-time environment data and standard environment data of a to-be-irrigated area, and calculating a real-time evaporation rate of the to-be-irrigated area within a fixed duration according to the real-time environment data and the standard environment data; acquiring basic soil data and empirical parameter data of the to-be-irrigated area, and calculating to obtain a standard displacement function of the to-be-irrigated area; the to-be-irrigated area is irrigated according to the irrigation rate, and the water accumulation condition of the to-be-irrigated area is detected and recorded; the effective water absorption volume of the to-be-irrigated area is calculated, the irrigation condition of the to-be-irrigated area is obtained according to the effective water absorption volume, and the irrigation scheme of the irrigation area is dynamically adjusted according to real-time environment changes and soil characteristics.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural irrigation, and specifically relates to a water-saving irrigation method for water conservancy based on data analysis. Background Art

[0002] The water-saving irrigation method for water conservancy is an agricultural irrigation means that improves the utilization efficiency of water resources and reduces water waste by scientifically managing and precisely controlling the irrigation process. This method combines soil characteristics, crop water requirements, and meteorological conditions, and adopts reasonable irrigation systems and technical means (such as drip irrigation, sprinkler irrigation, intelligent regulation, etc.) to supply water as needed, timely, and quantitatively, achieving the goal of "less irrigation, high efficiency, and precision", and is an important part of the sustainable development of modern agriculture.

[0003] In the prior art, water-saving irrigation for water conservancy often relies on fixed irrigation parameters and simple linear models, with low utilization of real-time environmental data and soil drainage conditions, resulting in a relatively slow response to actual environmental changes, and lacking an overall consideration of multiple processes such as irrigation, soil absorption, drainage, and evaporation, leading to the inability to achieve dynamic water-saving regulation; Therefore, the present invention proposes a water-saving irrigation method for water conservancy based on data analysis. Summary of the Invention

[0004] The purpose of the present invention is to propose a water-saving irrigation method for water conservancy based on data analysis to solve the problems raised in the above background art.

[0005] The technical problem to be solved by the present invention is: How to dynamically adjust the irrigation plan for the irrigation area according to real-time environmental changes and soil characteristics.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: A water-saving irrigation method for water conservancy based on data analysis, the method is as follows: Step S1, obtain the real-time environmental data and standard environmental data of the area to be irrigated, and calculate the real-time evaporation rate of the area to be irrigated within a fixed time period based on the real-time environmental data and standard environmental data; Step S2, obtain the basic soil data and empirical parameter data of the area to be irrigated, and calculate the standard drainage function of the area to be irrigated; Step S3, irrigate the area to be irrigated according to the irrigation rate, and detect and record the water accumulation situation in the area to be irrigated; Step S4, calculate the effective water absorption volume of the area to be irrigated, and obtain the irrigation situation of the area to be irrigated based on the effective water absorption volume.

[0007] As an optimal technical solution of the water-saving irrigation method based on data analysis, the real-time environmental data includes the real-time temperature, real-time humidity ratio, and real-time wind speed of the area to be irrigated; The standard environmental data includes the standard temperature, standard humidity ratio, and standard wind speed of the area to be irrigated.

[0008] As an optimal technical solution of the water-saving irrigation method based on data analysis, the step S1 includes the following sub-steps: Step S11: Taking the irrigation device as the center and the maximum irrigation distance of the irrigation device as the radius, construct a circular area, use the circular area as the area to be irrigated, and obtain the area of the area to be irrigated; Step S12: Obtain the real-time temperature, standard temperature, real-time wind speed, and standard wind speed of the area to be irrigated; Step S13: If the real-time temperature is less than the standard temperature, do nothing; if the real-time temperature is greater than or equal to the standard temperature, proceed to the next step; Step S14: If the real-time wind speed is less than the standard wind speed, do nothing; if the real-time wind speed is greater than or equal to the standard wind speed, proceed to the next step.

[0009] As an optimal technical solution of the water-saving irrigation method based on data analysis, the sub-steps of the step S1 further include: Step S15: Calculate the environmental impact value of the area to be irrigated; Step S16: According to the impact value interval to which the environmental impact value belongs, obtain the increased proportion of the evaporation rate corresponding to the area to be irrigated; Step S17: Obtain the standard humidity ratio, real-time humidity ratio, real-time wind speed, and area of the area to be irrigated, and calculate the calculated evaporation rate of the area to be irrigated; Step S18: Calculate the sum of the evaporation rate and the increased proportion of the evaporation rate to obtain the real-time evaporation rate of the area to be irrigated.

[0010] As an optimal technical solution of the water-saving irrigation method based on data analysis, the basic soil data includes the soil volume, soil weight, soil porosity, and soil weight moisture content of the area to be irrigated; The empirical parameter data is specifically the drainage non-linear index and the time non-linear index of the area to be irrigated.

[0011] As an optimal technical solution of the water-saving irrigation method based on data analysis, the step S2 includes the following sub-steps: Step S21: Obtain the soil volume and soil porosity of the area to be irrigated, multiply the soil volume and soil porosity, and calculate the soil pore volume of the area to be irrigated; Step S22: Obtain the soil weight and soil moisture content by weight of the area to be irrigated, and calculate the weight of water in the soil in the area to be irrigated. Step S23: Calculate the volume of water in the area to be irrigated. Step S24: Compare the volume of water in the area to be irrigated with the volume of soil pores. When the volume of water is less than the volume of soil pores, do nothing. When the volume of water is greater than or equal to the volume of soil pores, the soil in the area to be irrigated cannot absorb water. Subtract the volume of soil pores from the volume of water to obtain the basic drainage volume of the area to be irrigated. Step S25: Obtain the start time node when irrigation starts in the area to be irrigated and the drainage time node when drainage starts in the area to be irrigated. Subtract the drainage time node from the start time node to obtain the delayed drainage duration. Step S26: Obtain the drainage non - linear index and time non - linear index of the area to be irrigated, and calculate the standard drainage function.

[0012] As an optimized technical solution of the water - conserving irrigation method based on data analysis, step S3 includes the following sub - steps: Step S31: Record the time node when the irrigation device starts irrigation as the start time node, and set the irrigation rate of the irrigation device as the initial irrigation rate at the same time. Step S32: Increase the fixed irrigation rate every fixed duration, and calculate the real - time irrigation rate corresponding to different time nodes. Step S33: Obtain the maximum irrigation rate of the irrigation device. When the real - time irrigation rate is less than or equal to the maximum irrigation rate, do nothing. When the real - time irrigation rate is greater than the maximum irrigation rate, then fix the real - time irrigation rate at the maximum irrigation rate. Step S34: Detect the water accumulation situation in the area to be irrigated in real - time. If there is no water accumulation in the area to be irrigated, fix the irrigation rate of the irrigation device at the maximum irrigation rate until there is water accumulation in the area to be irrigated. If there is water accumulation in the area to be irrigated, record the water accumulation time node corresponding to the occurrence of water accumulation in the area to be irrigated, and proceed to the next step.

[0013] As an optimized technical solution of the water - conserving irrigation method based on data analysis, step S4 includes the following sub - steps: Step S41: Obtain the water accumulation time node, subtract the water accumulation time node from the start time node to obtain the irrigation duration, and then calculate the irrigation volume of the area to be irrigated during the irrigation duration. Step S42: Obtain the real - time evaporation rate of the area to be irrigated, and calculate the cumulative evaporation volume of the area to be irrigated during the corresponding duration. Step S43: Obtain the drainage time node when the area to be irrigated starts to drain, subtract the waterlogging time node from the drainage time node, and calculate the difference in waterlogging duration.

[0014] As an optimal technical solution of the water conservancy water-saving irrigation method based on data analysis, the sub-steps of step S4 further include: Step S44: Determine the standard drainage volume function of the area to be irrigated, and calculate the total drainage volume of the area to be irrigated; Step S45: Then calculate the effective water absorption volume of the area to be irrigated that actually absorbs water; Step S46: If the effective water absorption volume belongs to the first effective water absorption volume interval, determine that the irrigation situation in the area to be irrigated is over-irrigation, and adjust the irrigation rate of the irrigation device; If the effective water absorption volume belongs to the second effective water absorption volume interval, determine that the irrigation situation in the area to be irrigated is normal without any operation.

[0015] As an optimal technical solution of the water conservancy water-saving irrigation method based on data analysis, the interval endpoint value of the first effective water absorption volume interval is greater than the interval endpoint value of the second effective water absorption volume interval, and the interval endpoint value of the second effective water absorption volume interval is greater than zero.

[0016] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are: 1. The present invention first obtains the real-time environmental data and standard environmental data of the area to be irrigated, then calculates the real-time evaporation rate of the area to be irrigated within a fixed duration based on the real-time environmental data and standard environmental data. At the same time, the basic soil data and empirical parameter data of the area to be irrigated are obtained, and the standard drainage volume function of the area to be irrigated is calculated. The present invention realizes accurate analysis of the evaporation rate and drainage situation of the irrigation area through data analysis; 2. The present invention irrigates the area to be irrigated according to the irrigation rate, detects and records the waterlogging situation of the area to be irrigated, then calculates the effective water absorption volume of the area to be irrigated, and obtains the irrigation situation of the area to be irrigated based on the effective water absorption volume. The present invention dynamically adjusts the irrigation plan of the irrigation area according to the real-time environmental changes and soil characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is the overall system block diagram of the present invention; Figure 2 It is an example diagram of the area to be irrigated in the present invention; Figure 3 It is the structural schematic diagram of the computer device in the present invention. Specific Embodiment

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0020] Embodiment 1: Please refer to Figure 1 - Figure 2 As shown, the technical solution provided by the present invention is: a water-saving irrigation method based on data analysis, and the method is as follows: Step S1, obtain the real-time environmental data and standard environmental data of the area to be irrigated, and calculate the real-time evaporation rate of the area to be irrigated within a fixed time period based on the real-time environmental data and the standard environmental data; Among them, the real-time environmental data includes the real-time temperature, real-time humidity ratio and real-time wind speed of the area to be irrigated; The standard environmental data includes the standard temperature, standard humidity ratio and standard wind speed of the area to be irrigated; In this embodiment, the step S1 includes the following sub-steps: Step S11, with the irrigation device as the center and the maximum irrigation distance of the irrigation device as the radius, construct a circular area, use the circular area as the area to be irrigated, and obtain the area QYM of the area to be irrigated; Step S12, obtain the real-time temperature SSW, standard temperature BZW, real-time wind speed SSF and standard wind speed BZF of the area to be irrigated; Step S13, if the real-time temperature is less than the standard temperature, do nothing; If the real-time temperature is greater than or equal to the standard temperature, proceed to the next step; Step S14, if the real-time wind speed is less than the standard wind speed, do nothing; If the real-time wind speed is greater than or equal to the standard wind speed, proceed to the next step; Step S15, calculate the environmental impact value HYX of the area to be irrigated through the formula. The specific formula is as follows: HYX = w1×[(SSW - BZW) / BZW] + w2×[(SSF - BZF) / BZF], where w1 and w2 are weight coefficients with fixed values, and w1 > w2; Step S16, when the environmental impact value belongs to the first impact value interval, the evaporation rate increase ratio of the area to be irrigated is x1; When the environmental impact value belongs to the second impact value interval, the evaporation rate increase ratio of the area to be irrigated is x2; When the environmental impact value belongs to the third impact value interval, the increased proportion of the evaporation rate in the area to be irrigated is x3; Among them, the left endpoint of the third impact value interval is greater than or equal to the right endpoint of the second impact value interval, and the left endpoint of the second impact value interval is greater than or equal to the right endpoint of the first impact value interval; Exemplarily, the third impact value interval is (10, 15], the second impact value interval is (5, 10], the first impact value interval is (0, 5], x1 = 0.11, x2 = 0.13, x3 = 0.15; Step S17, obtain the standard humidity ratio, real-time humidity ratio, real-time wind speed and area of the area to be irrigated, and calculate the calculated evaporation rate of the area to be irrigated; Specifically, the real-time evaporation rate is the evaporation volume of water in the area to be irrigated within a fixed time period, with the unit of cubic meters per hour. The real-time evaporation rate can be calculated by a simplified formula, Dalton evaporation formula, Penman formula or formula based on diffusion theory to obtain the real-time evaporation rate of the area to be irrigated; For example, a simplified evaporation rate formula is: E=(HRmax - HRcurrent)×V×A; Among them, E is the evaporation rate, with the unit of kg / hour; HRmax is the maximum humidity ratio of saturated air, with the unit of kg / kg, which can be regarded as the standard humidity ratio of the area to be irrigated; HRcurrent is the current humidity ratio of air, with the unit of kg / kg, which can be regarded as the real-time humidity ratio of the area to be irrigated; V is the air velocity, with the unit of m / s, which can be regarded as the real-time wind speed of the area to be irrigated; A is the water surface area, with the unit of m, which can be regarded as the area of the area to be irrigated; Step S18, calculate the evaporation rate plus the increased proportion of the evaporation rate to obtain the real-time evaporation rate SZS of the area to be irrigated.

[0021] Step S2, obtain the basic soil data and empirical parameter data of the area to be irrigated, and calculate the standard drainage function of the area to be irrigated; Among them, the basic soil data includes the soil volume, soil weight, soil porosity and soil weight water content of the area to be irrigated; The process of obtaining the soil volume is specifically as follows: obtain the maximum depth of the crop roots and rhizomes in the area to be irrigated, multiply the area of the area to be irrigated by the maximum depth to obtain the soil volume of the area to be irrigated; The process of obtaining the soil weight is specifically as follows: obtain the soil with a fixed volume in the area to be irrigated, divide the fixed volume by the soil volume to obtain the volume ratio of the fixed volume soil to the soil volume, and then obtain the unit soil weight of the fixed volume, divide the unit soil weight by the volume ratio to obtain the soil weight of the area to be irrigated, and the soil weight is the weight when the soil is wet; The empirical parameter data specifically includes the drainage nonlinear index and the time nonlinear index of the area to be irrigated; Among them, the drainage nonlinear index is used to reflect the amplification index of the basic drainage volume; the time nonlinear index is used to reflect the index of the drainage speed of the irrigation device increasing with time; It should be specifically stated that the soil porosity is specifically the proportion of the pore space in the soil in the area to be irrigated to the soil volume; the soil weight water content is obtained by the sensor; In this embodiment, the step S2 includes the following sub-steps: Step S21, obtain the soil volume and soil porosity of the area to be irrigated, multiply the soil volume and soil porosity, and calculate to obtain the soil pore volume of the area to be irrigated; Step S22, obtain the soil weight TRZ and soil weight water content THS of the area to be irrigated, and calculate to obtain the moisture weight MSZ in the soil in the area to be irrigated through the formula. The specific formula is as follows: MSZ = (TRZ × THS) / (1 + THS); Step S23, calculate to obtain the moisture volume VST of the area to be irrigated through the formula. The specific formula is as follows: VST = MSZ / ρ, where ρ is the density of water, ρ = 1000 kg / m³; Step S24, compare the moisture volume of the area to be irrigated with the soil pore volume; When the moisture volume is less than the soil pore volume, no operation is performed; When the moisture volume is greater than or equal to the soil pore volume, the soil in the area to be irrigated cannot absorb water. Subtract the soil pore volume from the moisture volume to obtain the basic drainage volume JPT of the area to be irrigated; It should be specifically stated that when the moisture volume is less than the soil pore volume, the soil can completely absorb the applied moisture and is not saturated, so no drainage occurs; Step S25, obtain the start time node when irrigation starts in the area to be irrigated and the drainage time node when drainage starts in the area to be irrigated, subtract the drainage time node from the start time node to obtain the delayed drainage duration PSC; Step S26, obtain the drainage nonlinear index a and time nonlinear index b of the area to be irrigated, and calculate to obtain the standard drainage function BPL through the formula. The specific formula is as follows: , where e is the natural constant; Specifically, the standard displacement function is a non-linear function. When starting to irrigate the area to be irrigated, the area to be irrigated does not drain until the volume of water in the area to be irrigated is greater than the volume of soil pores, at which point drainage begins and the drainage volume increases with the increase of time. The maximum drainage volume of the area to be irrigated is less than or equal to the maximum irrigation rate of the irrigation device.

[0022] Step S3: The area to be irrigated is irrigated according to the irrigation rate, and the water accumulation situation in the area to be irrigated is detected and recorded. In this embodiment, step S3 includes the following sub-steps: Step S31: Record the time node when the irrigation device starts to irrigate as the start time node, and at the same time set the irrigation rate of the irrigation device as the initial irrigation rate CSG. Specifically, the unit of the irrigation rate of the irrigation device is cubic meters per hour. Step S32: Increase the fixed irrigation rate GGS every fixed period of time. The unit of the fixed period of time is hours. In this embodiment, the fixed period of time is one hour. Calculate the real-time irrigation rate SGSi corresponding to different time nodes through the formula, where i is the time node number, i = 1, 2,..., m,..., n, and n is the maximum time node number. The specific formula is as follows: SGSi = CSG + (i - 1) × GGS; When i = 1, the corresponding time node is the first time node, and the real-time irrigation rate is the initial irrigation rate. When i = 2, the corresponding time node is the second time node, and the real-time irrigation rate is CSG + GGS. When i = n, the corresponding time node is the nth time node, and the real-time irrigation rate is CSG + (n - 1) × GGS. Step S33: Obtain the maximum irrigation rate of the irrigation device. When the real-time irrigation rate is less than or equal to the maximum irrigation rate, no operation is performed. When the real-time irrigation rate is greater than the maximum irrigation rate, the real-time irrigation rate is fixed at the maximum irrigation rate. Step S34: Detect the water accumulation situation in the area to be irrigated in real time. If there is no water accumulation in the area to be irrigated, fix the irrigation rate of the irrigation device at the maximum irrigation rate until there is water accumulation in the area to be irrigated. If there is water accumulation in the area to be irrigated, record the water accumulation time node corresponding to the occurrence of water accumulation in the area to be irrigated and enter the next step. Specifically, detect the water accumulation situation in the area to be irrigated through deep learning image recognition technology. Deep learning image recognition technology is an existing technology. Step S4: Calculate the effective water absorption volume of the area to be irrigated, and obtain the irrigation situation of the area to be irrigated based on the effective water absorption volume. In this embodiment, step S4 includes the following sub-steps: Step S41: Obtain the water accumulation time node, subtract the water accumulation time node from the start time node to get the irrigation duration m, and calculate the irrigation volume GGT of the area to be irrigated during the irrigation duration through the formula. The specific formula is as follows: ; Step S42: Obtain the real-time evaporation rate SZS of the area to be irrigated, and calculate the cumulative evaporation volume LZT of the area to be irrigated during the corresponding duration through the formula. The specific formula is as follows: LZT = SZS × m; Step S43: Obtain the drainage time node when the area to be irrigated starts to drain, subtract the drainage time node from the water accumulation time node, and calculate the water accumulation duration difference JSC. Step S44: For the standard drainage volume function BPL of the area to be irrigated, calculate the total drainage volume ZPT of the area to be irrigated through the formula. The specific formula is as follows: ; Step S45: Calculate the effective water absorption volume YXT of the area to be irrigated actually absorbing water through the formula. The specific formula is as follows: YXT = GGT - LZT - ZPT; Step S46: If the effective water absorption volume belongs to the first effective water absorption volume interval, determine that the irrigation situation of the area to be irrigated is over-irrigation, and adjust the irrigation rate of the irrigation device; If the effective water absorption volume belongs to the second effective water absorption volume interval, determine that the irrigation situation of the area to be irrigated is normal without any operation; Among them, the interval endpoint value of the first effective water absorption volume interval is greater than the interval endpoint value of the second effective water absorption volume interval, and the interval endpoint value of the second effective water absorption volume interval is greater than zero.

[0023] In this application, if there are corresponding calculation formulas, the above calculation formulas are all calculated by taking the numerical value without dimension. For the coefficients such as weight coefficients and proportionality coefficients existing in the formulas, the sizes set are for the purpose of quantifying each parameter to obtain a result value. Regarding the sizes of the weight coefficients and proportionality coefficients, as long as the proportional relationship between the parameters and the result value is not affected.

[0024] Embodiment 2: Figure 3 Illustrates a schematic structural diagram of a computer device, as Figure 3As shown, the computer device may include: a processor, a communications interface, a memory, and a communication bus. Among them, the processor, the communication interface, and the memory complete communication with each other through the communication bus. The processor can call the logical instructions in the memory to execute the water conservancy water-saving irrigation method based on data analysis. The method includes: obtaining the real-time environmental data and standard environmental data of the area to be irrigated, and calculating the real-time evaporation rate of the area to be irrigated within a fixed time period according to the real-time environmental data and the standard environmental data; obtaining the basic soil data and empirical parameter data of the area to be irrigated, and calculating the standard drainage function of the area to be irrigated; the area to be irrigated is irrigated according to the irrigation rate, and the water accumulation situation of the area to be irrigated is detected and recorded; calculating the effective water absorption volume of the area to be irrigated, and obtaining the irrigation situation of the area to be irrigated according to the effective water absorption volume.

[0025] In addition, when the logical instructions in the above-mentioned memory 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 application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This 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 application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0026] Embodiment 3: The present application also provides a computer program product. The computer program product includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the water conservancy water-saving irrigation method based on data analysis provided by the above-mentioned various methods. The method includes: obtaining the real-time environmental data and standard environmental data of the area to be irrigated, and calculating the real-time evaporation rate of the area to be irrigated within a fixed time period according to the real-time environmental data and the standard environmental data; obtaining the basic soil data and empirical parameter data of the area to be irrigated, and calculating the standard drainage function of the area to be irrigated; the area to be irrigated is irrigated according to the irrigation rate, and the water accumulation situation of the area to be irrigated is detected and recorded; calculating the effective water absorption volume of the area to be irrigated, and obtaining the irrigation situation of the area to be irrigated according to the effective water absorption volume.

[0027] Embodiment 4: The present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it is configured to execute the water conservancy water-saving irrigation method based on data analysis provided above. The method includes: obtaining real-time environmental data and standard environmental data of the area to be irrigated, and calculating the real-time evaporation rate of the area to be irrigated within a fixed time period based on the real-time environmental data and the standard environmental data; obtaining basic soil data and empirical parameter data of the area to be irrigated, and calculating the standard drainage volume function of the area to be irrigated; irrigating the area to be irrigated according to the irrigation rate, detecting and recording the water accumulation situation of the area to be irrigated; calculating the effective water absorption volume of the area to be irrigated, and obtaining the irrigation situation of the area to be irrigated based on the effective water absorption volume.

[0028] 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 may be 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. Those of ordinary skill in the art can understand and implement it without creative effort.

[0029] 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, also by hardware. Based on this understanding, the essence of the above technical solution, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disc, etc., and includes several instructions for causing 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.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application 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; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of each embodiment of the present application.

Claims

1. A water conservancy and water-saving irrigation method based on data analysis, characterized in that: Here’s how: Step S1, obtaining real-time environmental data and standard environmental data of the area to be irrigated, and calculating the real-time evaporation rate of the area to be irrigated within a fixed time period based on the real-time environmental data and the standard environmental data; Step S2, obtaining basic soil data and empirical parameter data of the area to be irrigated, and calculating a standard drainage function of the area to be irrigated; Step S3, irrigating the area to be irrigated according to the irrigation rate, detecting and recording the water accumulation in the area to be irrigated; Step S4, calculating the effective water absorption volume of the area to be irrigated, and obtaining the irrigation situation of the area to be irrigated according to the effective water absorption volume.

2. The water conservancy and water-saving irrigation method based on data analysis according to claim 1 is characterized in that: Real-time environmental data includes real-time temperature, real-time humidity ratio and real-time wind speed of the area to be irrigated; The standard environmental data include the standard temperature, standard humidity ratio and standard wind speed of the area to be irrigated.

3. The water conservancy and water-saving irrigation method based on data analysis according to claim 2 is characterized in that: The step S1 includes the following sub-steps: Step S11, constructing a circular area with the irrigation device as the center and the maximum irrigation distance of the irrigation device as the radius, taking the circular area as the area to be irrigated, and obtaining the area of ​​the area to be irrigated; Step S12, obtaining the real-time temperature, standard temperature, real-time wind speed and standard wind speed of the area to be irrigated; Step S13: if the real-time temperature is less than the standard temperature, no operation is performed; if the real-time temperature is greater than or equal to the standard temperature, proceed to the next step; Step S14: if the real-time wind speed is less than the standard wind speed, no operation is performed; if the real-time wind speed is greater than or equal to the standard wind speed, proceed to the next step.

4. The water conservancy and water-saving irrigation method based on data analysis according to claim 3 is characterized in that: The sub-steps of step S1 also include: Step S15, calculating the environmental impact value of the area to be irrigated; Step S16, obtaining the evaporation rate increase ratio corresponding to the area to be irrigated according to the impact value interval to which the environmental impact value belongs; Step S17, obtaining the standard humidity ratio, real-time humidity ratio, real-time wind speed and area of ​​the area to be irrigated, and calculating the evaporation rate of the area to be irrigated; Step S18, calculating the evaporation rate plus the evaporation rate increase ratio to obtain the real-time evaporation rate of the area to be irrigated.

5. The water conservancy and water-saving irrigation method based on data analysis according to claim 4 is characterized in that: Basic soil data include soil volume, soil weight, soil porosity, and soil weight water content of the area to be irrigated; The empirical parameter data specifically include the drainage nonlinear index and the time nonlinear index of the area to be irrigated.

6. The water conservancy and water-saving irrigation method based on data analysis according to claim 5 is characterized in that: The step S2 includes the following sub-steps: Step S21, obtaining the soil volume and soil porosity of the area to be irrigated, multiplying the soil volume and the soil porosity to calculate the soil pore volume of the area to be irrigated; Step S22, obtaining the soil weight and soil water content of the area to be irrigated, and calculating the water weight in the soil in the area to be irrigated; Step S23, calculating the water volume of the area to be irrigated; Step S24, comparing the water volume of the area to be irrigated with the soil pore volume; When the water volume is less than the soil pore volume, no action is performed; When the water volume is greater than or equal to the soil pore volume, the soil in the area to be irrigated cannot absorb water. The water volume is subtracted from the soil pore volume to obtain the basic drainage volume of the area to be irrigated. Step S25, obtaining the start time node of irrigation of the area to be irrigated and the drainage time node of drainage of the area to be irrigated, subtracting the drainage time node from the start time node to obtain the delayed drainage time length; Step S26, obtaining the drainage nonlinear index and time nonlinear index of the area to be irrigated, and calculating the standard drainage function.

7. The water conservancy and water-saving irrigation method based on data analysis according to claim 6 is characterized in that: The step S3 includes the following sub-steps: Step S31, recording the time node when the irrigation device starts to irrigate as the start time node, and setting the irrigation rate of the irrigation device to the initial irrigation rate; Step S32, increasing the fixed irrigation rate after each fixed time period, and calculating the real-time irrigation rates corresponding to different time nodes; Step S33, obtaining the maximum irrigation rate of the irrigation device, and when the real-time irrigation rate is less than or equal to the maximum irrigation rate, no operation is performed; When the real-time irrigation rate is greater than the maximum irrigation rate, the real-time irrigation rate is fixed to the maximum irrigation rate; Step S34, real-time detection of water accumulation in the area to be irrigated, if there is no water accumulation in the area to be irrigated, fixing the irrigation rate of the irrigation device to the maximum irrigation rate until water accumulation occurs in the area to be irrigated; If water accumulation exists in the area to be irrigated, the time node of water accumulation corresponding to the water accumulation in the area to be irrigated is recorded, and the next step is entered.

8. The water conservancy and water-saving irrigation method based on data analysis according to claim 1, characterized in that: The step S4 includes the following sub-steps: Step S41, obtaining a water accumulation time node, subtracting the water accumulation time node from the start time node to obtain the irrigation duration, and then calculating the irrigation volume of the area to be irrigated within the irrigation duration; Step S42, obtaining the real-time evaporation rate of the area to be irrigated, and calculating the cumulative evaporation volume of the area to be irrigated within a corresponding period of time; Step S43, obtaining the drainage time node when the area to be irrigated starts to be drained, subtracting the water accumulation time node from the drainage time node, and calculating the water accumulation time difference.

9. The water conservancy and water-saving irrigation method based on data analysis according to claim 8, characterized in that: The sub-steps of step S4 also include: Step S44, standard drainage function of the area to be irrigated, and calculate the total drainage volume of the area to be irrigated; Step S45, then calculating the effective water absorption volume of the area to be irrigated that actually absorbs water; Step S46, if the effective water absorption volume belongs to the first effective water absorption volume interval, it is determined that the irrigation situation of the area to be irrigated is an over-irrigation phenomenon, and the irrigation rate of the irrigation device is adjusted; If the effective water absorption volume belongs to the second effective water absorption volume interval, it is determined that the irrigation situation of the area to be irrigated is normal, and no operation is performed.

10. The water conservation and water-saving irrigation method based on data analysis according to claim 9, characterized in that: in, The interval endpoint value of the first effective water absorption volume interval is greater than the interval endpoint value of the second effective water absorption volume interval, and the interval endpoint value of the second effective water absorption volume interval is greater than zero.

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