Drip irrigation water pressure control method and system based on water flow driving

Abstract

The invention relates to the technical field of intelligent control, in particular to a drip irrigation water pressure control method and system based on water flow driving, and the method comprises the steps: obtaining a water pressure data sequence of a drip irrigation group of a drip irrigation system in a drip irrigation process; determining the theoretical water pressure and theoretical water flow data of each water dropper according to the theoretical water volume demand of the crops, and determining the actual water pressure of each water dropper according to the water pressure data sequence; determining the water pressure adjustment necessity of the drip irrigation system by using the water pressure data sequence, the actual water pressure and the theoretical water pressure; according to the actual water flow data and the theoretical water flow data of each water dropper on the branch pipeline of the drip irrigation group, the blocking possibility of the branch pipeline of the drip irrigation group is determined; determining the final water pressure regulation necessity of the drip irrigation system by utilizing the blockage possibility and the water pressure regulation necessity of the branch pipeline of the drip irrigation group; and controlling the drip irrigation water pressure of the drip irrigation system based on the final water pressure adjustment necessity. Therefore, the accuracy of water pressure control of the drip irrigation system is improved.

Description

Technical Field

[0001] The present invention relates to the field of intelligent control technology, and in particular to a drip irrigation water pressure control method and system based on water flow drive. Background Art

[0002] The drip irrigation system is an irrigation method that delivers water directly to the roots of crops through a pipe system. This method is more water-saving than traditional ground spraying and helps maintain soil structure and reduce water evaporation. Among them, the water pressure of the irrigation system reflects the water flow capacity of the irrigation system during the irrigation process, which is directly related to the uniformity and efficiency of irrigation.

[0003] At present, the difference between theoretical water pressure and actual water pressure is used to judge whether the drip irrigation system has problems such as blockage during the irrigation process, so as to control the water pressure of the drip irrigation system to solve the blockage problem, thereby improving the working efficiency of the drip irrigation system. However, in the actual drip irrigation process, whether the drip irrigation system is blocked or not, it is normal for the actual water pressure to differ from the theoretical water pressure. Therefore, if the water pressure of the drip irrigation system is controlled only by the difference between the theoretical water pressure and the actual water pressure, the accuracy of the water pressure control of the drip irrigation system will be low. Summary of the invention

[0004] In order to solve the technical problem of low accuracy of water pressure control in drip irrigation system, the purpose of the present invention is to provide a drip irrigation water pressure control method and system based on water flow drive. The technical scheme adopted is as follows:

[0005] The embodiment of the present invention provides a drip irrigation water pressure control method based on water flow drive, comprising: obtaining a water pressure data sequence of a drip irrigation group of a drip irrigation system during a drip irrigation process, wherein a drip irrigation group is used for drip irrigation of the same type of crops, the drip irrigation group comprises at least one branch pipeline, and the branch pipeline comprises at least one dripper; determining theoretical water pressure and theoretical water flow data of each dripper of the drip irrigation group according to theoretical water demand of the crops, and determining actual water pressure of each dripper of the drip irrigation group according to the water pressure data sequence; determining necessity of water pressure regulation of the drip irrigation system by using the water pressure data sequence, actual water pressure and theoretical water pressure; determining possibility of blockage of each branch pipeline of the drip irrigation group according to actual water flow data and theoretical water flow data of each dripper on each branch pipeline of the drip irrigation group; determining necessity of final water pressure regulation of the drip irrigation system by using possibility of blockage of each branch pipeline of the drip irrigation group and necessity of water pressure regulation; and controlling drip irrigation water pressure of the drip irrigation system based on necessity of final water pressure regulation.

[0006] Optionally, determining the necessity of water pressure regulation of the drip irrigation system by using the water pressure data sequence, the actual water pressure and the theoretical water pressure includes: calculating the absolute value of the difference between the theoretical water pressure and the actual water pressure of each dripper of the drip irrigation group of the drip irrigation system to obtain a first water pressure difference value of each dripper; superimposing the first water pressure difference value of each dripper to obtain a superimposed water pressure difference value; calculating the second water pressure difference value of two adjacent actual water pressures in the water pressure data sequence, and obtaining the change trend characteristics of the water pressure data sequence; determining the necessity of water pressure regulation of the drip irrigation system according to the first water pressure difference value, the superimposed water pressure difference value, the second water pressure difference value and the change trend characteristics.

[0007] Optionally, determining the possibility of blockage of each branch pipe of the drip irrigation group based on the actual water flow data and theoretical water flow data of each dripper on each branch pipe of the drip irrigation group includes: performing anomaly detection on the actual water flow data of each dripper on each branch pipe of the drip irrigation group to obtain a normal data set and an abnormal data set, wherein the actual water flow data in the normal data set is within a normal range, and the actual water flow data in the abnormal data set exceeds the normal range; determining the initial blockage possibility of each branch pipe based on a first number of drippers corresponding to the actual water flow data in the normal data set, a second number of drippers corresponding to the actual water flow data in the abnormal data set, and the total number of drippers in the branch pipe; determining the initial blockage possibility of each branch pipe based on the first number of drippers corresponding to the actual water flow data in the normal data set, and the second number of drippers corresponding to the actual water flow data in the abnormal data set, and the total number of drippers in the branch pipe; determining the initial blockage possibility of each branch pipe based on the first number of drippers corresponding to the actual water flow data in the normal data set, and the theoretical water flow data in the abnormal data set. The first average actual water flow data of the normal data set is determined based on the actual water flow data of each dripper in the normal data set, and the average theoretical water flow data of the normal data set is determined based on the theoretical water flow data of each dripper in the normal data set; the second average actual water flow data of the abnormal data set is determined based on the actual water flow data of each dripper in the abnormal data set; the actual water flow data in the abnormal data set are linearly fitted based on the least squares to obtain the water flow change trend of the abnormal data set; the blockage possibility of each branch pipe of the drip irrigation group is determined based on the initial blockage possibility of each branch pipe, the first average actual water flow data, the average theoretical water flow data, the second average actual water flow data and the water flow change trend.

[0008] Optionally, determining the initial blockage possibility of each branch pipe based on a first number of drippers corresponding to actual water flow data in a normal data set, a second number of drippers corresponding to actual water flow data in an abnormal data set, and a total number of drippers in the branch pipe includes: numbering the drippers corresponding to the actual water flow data in the normal data set and the abnormal data set along the direction of water flow on the branch pipe, respectively, to obtain the number of each dripper in the normal data set and the number of each dripper in the abnormal data set; selecting a first number of consecutive dripper numbers from the normal data set, and selecting a second number of consecutive dripper numbers from the abnormal data set, the first number being the maximum value of the consecutive number of dripper numbers in the normal data set, and the second number being the maximum value of the consecutive number of dripper numbers in the abnormal data set; determining the initial blockage possibility of each branch pipe based on the first number, the second number and the total number.

[0009] Optionally, determining the initial blockage possibility of each branch pipeline according to the first number, the second number and the total number includes: determining a ratio of the sum of the first number and the second number to the total number as the initial blockage possibility of the branch pipeline.

[0010] Optionally, determining the blockage possibility of each branch pipe of the drip irrigation group based on the initial blockage possibility of each branch pipe, the first average actual water flow data, the average theoretical water flow data, the second average actual water flow data and the water flow change trend includes: calculating the product of the absolute value of the difference between the first average actual water flow data and the average theoretical water flow data and the absolute value of the water flow change trend to obtain the blockage significance of the branch pipe; calculating the product of the absolute value of the difference between the first average actual water flow data and the second average actual water flow data and the blockage significance to obtain the corrected blockage significance of the branch pipe; normalizing the product of the initial blockage possibility and the corrected blockage significance to obtain the blockage possibility of the branch pipe.

[0011] Optionally, using the blockage possibility and water pressure regulation necessity of each branch pipe of the drip irrigation group to determine the final necessity of water pressure regulation of the drip irrigation system includes: superimposing the blockage possibility of each branch pipe of the drip irrigation group of the drip irrigation system to obtain the superimposed blockage possibility; determining the product of the superimposed blockage possibility and the superimposed blockage possibility as the final necessity of water pressure regulation of the drip irrigation system.

[0012] Optionally, controlling the drip irrigation water pressure of the drip irrigation system based on the necessity of final water pressure regulation includes: when the necessity of final water pressure regulation is greater than a threshold, sending a water pressure regulation instruction to the drip irrigation system, and controlling the drip irrigation water pressure of the drip irrigation system through the water pressure regulation instruction.

[0013] In a second aspect, an embodiment of the present invention provides a drip irrigation water pressure control system based on water flow drive, comprising: an acquisition module, used to acquire a water pressure data sequence of a drip irrigation group of a drip irrigation system during a drip irrigation process, wherein a drip irrigation group is used to drip irrigate crops of the same type, and the drip irrigation group comprises at least one branch pipe, and the branch pipe comprises at least one dripper; a determination module, used to determine the theoretical water pressure and theoretical water flow data of each dripper of the drip irrigation group according to the theoretical water demand of the crops, and to determine the actual water pressure of each dripper of the drip irrigation group according to the water pressure data sequence; the determination module, further used to determine the necessity of water pressure regulation of the drip irrigation system using the water pressure data sequence, the actual water pressure and the theoretical water pressure; the determination module, used to determine the possibility of blockage of each branch pipe of the drip irrigation group according to the actual water flow data and the theoretical water flow data of each dripper on each branch pipe of the drip irrigation group; the determination module, used to determine the necessity of final water pressure regulation of the drip irrigation system using the possibility of blockage of each branch pipe of the drip irrigation group and the necessity of water pressure regulation; and a control module, used to control the drip irrigation water pressure of the drip irrigation system based on the necessity of final water pressure regulation.

[0014] In the third aspect, an embodiment of the present invention provides a drip irrigation water pressure control system based on water flow drive, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the computer program is executed by the processor, the steps of the drip irrigation water pressure control method based on water flow drive mentioned in the first aspect are implemented.

[0015] The present invention has the following beneficial effects: firstly, a water pressure data sequence of a drip irrigation group of a drip irrigation system during a drip irrigation process is obtained, wherein a drip irrigation group is used for drip irrigation of the same type of crops, and the drip irrigation group includes at least one branch pipeline, and the branch pipeline includes at least one dripper; then, the theoretical water pressure and theoretical water flow data of each dripper of the drip irrigation group are determined according to the theoretical water demand of the crops, and the actual water pressure of each dripper of the drip irrigation group is determined according to the water pressure data sequence; then, the necessity of water pressure regulation of the drip irrigation system is determined by using the water pressure data sequence, the actual water pressure and the theoretical water pressure; and the possibility of blockage of each branch pipeline of the drip irrigation group is determined according to the actual water flow data and the theoretical water flow data of each dripper on each branch pipeline of the drip irrigation group; secondly, the necessity of final water pressure regulation of the drip irrigation system is determined by using the possibility of blockage of each branch pipeline of the drip irrigation group and the necessity of water pressure regulation; finally, the drip irrigation water pressure of the drip irrigation system is controlled based on the necessity of final water pressure regulation.

[0016] In this way, the present invention obtains the necessity of water pressure regulation of the drip irrigation system through the water pressure data sequence of each dripper of the drip irrigation system, the actual water pressure and the theoretical water pressure; the necessity of water pressure regulation of the drip irrigation system is corrected in combination with the possibility of blockage of each branch pipeline of the drip irrigation group, thereby obtaining the final necessity of water pressure regulation of the drip irrigation system. The drip irrigation water pressure of the drip irrigation system is controlled based on the final necessity of water pressure regulation, rather than relying solely on the difference between the theoretical water pressure and the actual water pressure to control the water pressure of the drip irrigation system, thereby improving the accuracy of water pressure control of the drip irrigation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A flow chart of a drip irrigation water pressure control method based on water flow drive provided by an embodiment of the present invention;

[0019] Figure 2 A schematic structural diagram of a drip irrigation water pressure control system based on water flow drive provided by an embodiment of the present invention;

[0020] Figure 3 A schematic structural diagram of another drip irrigation water pressure control system based on water flow drive provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description of a drip irrigation water pressure control method and system based on water flow drive proposed by the present invention, its specific implementation method, structure, features and effects, in combination with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "another embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments may be combined in any suitable form.

[0022] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0023] The specific scheme of a drip irrigation water pressure control method and system based on water flow drive provided by the present invention is described in detail below with reference to the accompanying drawings.

[0024] Embodiment 1:

[0025] See also Figure 1 , which shows a flow chart of a drip irrigation water pressure control method based on water flow drive provided by an embodiment of the present invention, including:

[0026] Step S101, obtaining a water pressure data sequence of a drip irrigation group of a drip irrigation system during a drip irrigation process.

[0027] Wherein, a drip irrigation group is used for drip irrigation of the same type of crops, and the drip irrigation group includes at least one branch pipeline, and the branch pipeline includes at least one dripper.

[0028] Specifically, in a drip irrigation system, since crops have different water requirements at different growth stages, in order to control the amount of water for drip irrigation of crops, crops of the same type are usually divided into the same drip irrigation area, and the same drip irrigation group performs drip irrigation in the drip irrigation area. During the drip irrigation process, the drip irrigation group of the drip irrigation system monitors the water pressure provided by the drip irrigation system to the drip irrigation group in real time, thereby obtaining a water pressure data sequence, which includes the water pressure data of the drippers of the drip irrigation group that changes over time.

[0029] Furthermore, during the drip irrigation process of the drip irrigation group of the drip irrigation system, the actual water flow of each dripper of the drip irrigation group can be monitored in real time, thereby obtaining a data sequence of the actual water flow of each dripper.

[0030] Step S102, determining theoretical water pressure and theoretical water flow data of each dripper of the drip irrigation group according to theoretical water demand of crops, and determining actual water pressure of each dripper of the drip irrigation group according to the water pressure data sequence.

[0031] Specifically, in the drip irrigation process of the drip irrigation group of the drip irrigation system, different crops have different water requirements. Therefore, each type of crop has a theoretical water requirement. In order to meet the theoretical water requirements of each type of crop, a curve relationship between the water pressure and water flow of the drip irrigation system is first established, and then the theoretical water requirements of the type of crop are brought into the curve relationship to obtain the theoretical water pressure and theoretical water flow of the drip irrigation system. The theoretical water pressure and theoretical water flow of the drip irrigation system are the theoretical water pressure and theoretical water flow data of each dripper of the drip irrigation group.

[0032] Furthermore, the water pressure data sequence is a real-time monitoring drip irrigation system that provides real-time water pressure data for the drip irrigation group. Therefore, the water pressure corresponding to each time point in the water pressure data sequence is the actual water pressure of the dripper of the drip irrigation group.

[0033] Step S103, determining the necessity of water pressure regulation of the drip irrigation system by using the water pressure data sequence, the actual water pressure and the theoretical water pressure.

[0034] Specifically, the necessity of water pressure regulation refers to the degree of necessity for regulating the water pressure of the drip irrigation group. The higher the necessity of water pressure regulation, the higher the authenticity of regulating the water pressure of the drip irrigation system, that is, the difference between the actual water pressure and the theoretical water pressure of the drip irrigation system is caused by the blockage of the drip irrigation system.

[0035] Furthermore, during the drip irrigation process of the drip irrigation system, fertilizers usually need to be added to the water, which leads to the problem of incomplete dissolution of the fertilizers. In this way, certain precipitation will occur, resulting in certain blockages in the main pipe or branch pipe of the drip irrigation system. In the case of blockage in the drip irrigation system, there will be a certain difference between the actual water pressure and the theoretical water pressure of the drip irrigation system, and the difference is caused by the blockage of the drip irrigation system, which is not a normal difference. Therefore, it is necessary to adjust the water pressure of the drip irrigation system to a certain extent to solve the problem of blockage. Since the radius of the main pipe of the drip irrigation system is large, and the branch pipe of the drip irrigation group is small, blockage is more likely to occur in the branch pipe. The blockage of the branch pipe will cause uneven water flow distribution in the main pipe upstream of the drip irrigation system, which will cause abnormalities in the real-time monitored water pressure data sequence. Therefore, if the water pressure data sequence is relatively stable and the difference between the theoretical water pressure and the actual water pressure is small, it means that the difference between the theoretical water pressure and the actual water pressure of the drip irrigation system is normal, and there is no need to adjust the water pressure of the drip irrigation system. If the water pressure data sequence is less stable and the difference between the theoretical water pressure and the actual water pressure is large, it means that the difference between the theoretical water pressure and the actual water pressure of the drip irrigation system is abnormal, and there may be a blockage in the drip irrigation system. The water pressure of the drip irrigation system needs to be adjusted to solve the blockage problem. Therefore, the necessity of water pressure adjustment of the drip irrigation system can be determined based on the water pressure data sequence, the actual water pressure and the theoretical water pressure, and then the water pressure of the drip irrigation system can be adjusted based on the necessity of water pressure adjustment.

[0036] Furthermore, when determining the necessity of water pressure regulation, as an optional embodiment of the present invention, the absolute value of the difference between the theoretical water pressure and the actual water pressure of each dripper of the drip irrigation group of the drip irrigation system is first calculated to obtain a first water pressure difference value of each dripper; then the first water pressure difference value of each dripper is superimposed to obtain a superimposed water pressure difference value; then the second water pressure difference value of two adjacent actual water pressures in the water pressure data sequence is calculated, and the change trend characteristics of the water pressure data sequence are obtained; finally, the necessity of water pressure regulation of the drip irrigation system is determined based on the first water pressure difference value, the superimposed water pressure difference value, the second water pressure difference value and the change trend characteristics.

[0037] Specifically, the first water pressure difference value represents the difference between the theoretical water pressure and the actual water pressure. The larger the first water pressure difference value, the greater the difference between the theoretical water pressure and the actual water pressure. In the embodiment of the present invention, the theoretical water pressure is recorded as p0, the actual water pressure is recorded as p, and the first water pressure difference value can be calculated using the following formula:

[0038] A=|p0-p|

[0039] In the above formula, A is the first water pressure difference value, p0 is the theoretical water pressure, p is the actual water pressure, and || represents the absolute value.

[0040] Furthermore, the second water pressure difference value of two adjacent actual water pressures reflects the fluctuation characteristics of the water pressure. If the second water pressure difference value is larger, it means that the degree of water pressure fluctuation is larger. If the second water pressure difference value is smaller, it means that the degree of stability of water pressure is greater. The change trend characteristics of the water pressure data sequence can be obtained based on the principal component analysis method. First, the principal component analysis method is used to obtain the largest principal component direction of the water pressure data sequence. Then, the principal component direction is represented by a straight line in the coordinate system. The slope of the straight line is the change trend characteristic of the water pressure data sequence. The larger the slope, the more significant the change trend of the water pressure data sequence, the higher the blockage degree in the drip irrigation system, and the greater the necessity of regulating the water pressure of the drip irrigation system.

[0041] Furthermore, the necessity of water pressure regulation in the drip irrigation system can be calculated using the following formula:

[0042]

[0043] In the above formula, s represents the necessity of water pressure regulation of the drip irrigation system, A i The first water pressure difference value between the ith actual water pressure and the theoretical water pressure in the water pressure data sequence reflects the degree of deviation of the ith actual water pressure from the theoretical water pressure. represents the cumulative sum of all first water pressure difference values ​​in the water pressure data sequence (superimposed water pressure difference values). N represents the number of data points in the water pressure data sequence. |Δp i |The second water pressure difference value of two actual water pressures adjacent in time series in the water pressure data sequence reflects the degree of fluctuation of the water pressure data. The smaller the value is, the higher the stability of the water pressure is during the time of the adjacent records. It indicates the overall stability of the water pressure data sequence. The smaller the value, the stronger the stability of the water pressure in the time series of the water pressure data sequence. On the contrary, the larger the value, the worse the stability of the water pressure in the time series of the water pressure data sequence, the greater the possibility of abnormal water pressure, and the greater the need to adjust the water pressure of the drip irrigation system. φ indicates the trend of change of the water pressure data sequence. The larger the value of φ, the more significant the change trend of the water pressure data sequence, the higher the degree of blockage in the drip irrigation system, and the greater the need to adjust the water pressure of the drip irrigation system. Therefore, the larger the value of s, the greater the need to adjust the water pressure of the drip irrigation system.

[0044] Step S104, determining the possibility of blockage of each branch pipeline of the drip irrigation group according to the actual water flow data and theoretical water flow data of each dripper on each branch pipeline of the drip irrigation group.

[0045] Specifically, when the branch pipe of the drip irrigation system is blocked, the water flow rate of the drippers in the drip irrigation group of the drip irrigation system will be abnormal. Among them, in the same branch pipe, there will be a large difference between the water flow rate of the drippers located before the blocking position in the branch pipe and the water flow rate of the drippers located after the blocking position. This is because the water flow before the blocking position cannot flow in time, resulting in a serious increase in the water flow rate of the drippers before the blocking position, and the water flow after the blocking position cannot be replenished in time, resulting in a serious decrease in the water flow rate of the drippers after the blocking position. And with the direction of the water flow, due to the continuous decrease in the pressure provided by the water flow, the water flow rate of each dripper after the blocking position shows a trend of continuous decline along the direction of the water flow, resulting in a gradual increase in the difference between the actual water flow rate of the dripper and the theoretical water flow rate. When the branch pipe of the drip irrigation system is not blocked, the water flow rate of each dripper is stable and uniform. Therefore, the necessity of water pressure regulation in the above embodiment can be corrected based on the possibility of blockage of the branch pipe of the drip irrigation system, thereby further improving the authenticity of regulating the water pressure of the drip irrigation system.

[0046] Furthermore, the initial blockage possibility of the branch pipeline can be determined by the difference between the actual water flow data of the drippers of each branch pipeline, and then the initial blockage possibility can be corrected using the actual water flow data of the drippers and the theoretical water flow data, thereby obtaining the blockage possibility of each branch pipeline.

[0047] Further, when determining the possibility of blockage of each branch pipeline of the drip irrigation group, as an optional embodiment of the present invention, firstly, the actual water flow data of each dripper on each branch pipeline of the drip irrigation group is detected for abnormality, and a normal data set and an abnormal data set are obtained. The actual water flow data in the normal data set is within the normal range, and the actual water flow data in the abnormal data set exceeds the normal range. Then, according to the first number of drippers corresponding to the actual water flow data in the normal data set, the second number of drippers corresponding to the actual water flow data in the abnormal data set, and the total number of drippers in the branch pipeline, the initial blockage possibility of each branch pipeline is determined, and the first average actual water flow data of the normal data set is determined according to the actual water flow data of each dripper in the normal data set, the average theoretical water flow data of the normal data set is determined according to the theoretical water flow data of each dripper in the normal data set, and the second average actual water flow data of the abnormal data set is determined according to the actual water flow data of each dripper in the abnormal data set. Secondly, the actual water flow data in the abnormal data set is linearly fitted based on the least squares to obtain the water flow change trend of the abnormal data set. Finally, the blockage possibility of each branch pipe of the drip irrigation group is determined according to the initial blockage possibility of each branch pipe, the first average actual water flow data, the average theoretical water flow data, the second average actual water flow data and the water flow change trend.

[0048] Specifically, the drip irrigation system includes at least one drip irrigation group, a main pipeline and a branch pipeline, and each branch pipeline includes at least one dripper. Therefore, for each branch pipeline, the actual water flow data of all drippers on the branch pipeline is first obtained, and then a classification algorithm is used to perform abnormality detection on the actual water flow data of all drippers. The classification algorithm can be a one-class support vector machine algorithm (One-Class Support Vector Machine, OCSVM), so as to obtain a normal data set M1 and an abnormal data set M2. The actual water flow data in the normal data set is within the normal range, and its performance is relatively consistent. The actual water flow data in the abnormal data set exceeds the normal range, and its performance is more divergent. After obtaining the normal data set M1 and the abnormal data set M2, the first number of all drippers in the normal data set M1, the second number of all drippers in the abnormal data set M2, and the total number of drippers in the branch pipeline are counted. The ratio of the sum of the first number and the second number to the total number is used as the initial blockage possibility. Alternatively, the drippers in the normal data set M1 and the abnormal data set M2 are numbered along the direction of water flow on the branch pipe, and the number of the drippers closer to the front is smaller. The consecutive number of numbers in the normal data set M1 and the abnormal data set M2 is calculated, and the largest consecutive number of numbers in the two sets are selected as the first number of the normal data set M1 and the second number of the abnormal data set M2, respectively.

[0049] Furthermore, the initial blockage possibility reflects the possibility of blockage in the branch pipeline. The greater the initial blockage possibility, the greater the possibility of blockage in the branch pipeline.

[0050] Furthermore, the first average actual water flow data may be obtained by averaging the actual water flow data of each dripper in the normal data set, and the second average actual water flow data may be obtained by averaging the actual water flow data of each dripper in the abnormal data set.

[0051] Furthermore, the numbers of the drippers in the abnormal data set obtained above are used as explanatory variables, and the actual water flow data of the drippers in the abnormal data set are used as explained variables. A linear fit is performed on the actual water flow data in the abnormal data set based on least squares to obtain the water flow change trend of the abnormal data set.

[0052] Furthermore, when determining the initial blockage possibility of each branch pipeline, as an optional embodiment of the present invention, firstly, the drippers corresponding to the actual water flow data in the normal data set and the abnormal data set are numbered along the direction of the water flow on the branch pipeline to obtain the number of each dripper in the normal data set and the number of each dripper in the abnormal data set. Then, a first number of continuous dripper numbers is selected from the normal data set, and a second number of continuous dripper numbers is selected from the abnormal data set. The first number is the maximum value of the continuous number of dripper numbers in the normal data set, and the second number is the maximum value of the continuous number of dripper numbers in the abnormal data set. Finally, the initial blockage possibility of each branch pipeline is determined based on the first number, the second number, and the total number.

[0053] Specifically, when determining the initial blocking probability, the ratio of the sum of the first number and the second number to the total number can be determined as the initial blocking probability of the branch pipeline. Specifically, the following formula can be used to represent the initial blocking probability of the branch pipeline:

[0054]

[0055] In the above formula, L represents the initial possibility of blockage of the branch pipeline, L(M1) represents the maximum value of the consecutive number of dripper numbers in the normal data set M1, l(M2) represents the maximum value of the consecutive number of dripper numbers in the abnormal data set M2, l(M1)+l(M2) represents the continuity of the drippers on the branch pipeline, M represents the total number of drippers on the branch pipeline, and L reflects the possibility of blockage of the branch pipeline. If the sum of the maximum values ​​of the consecutive number of dripper numbers of the normal data set M1 and the abnormal data set M2 is very close to the total number of drippers on the branch pipeline, The closer the value is to 1, the higher the accuracy of the classified normal data set M1 and abnormal data set M2 is, which means that the possibility of blockage in the branch pipeline is greater.

[0056] Furthermore, when determining the blockage possibility of each branch pipe of the drip irrigation group, as an optional embodiment of the present invention, first, the product of the absolute value of the difference between the first average actual water flow data and the average theoretical water flow data and the absolute value of the water flow change trend is calculated to obtain the blockage significance of the branch pipe; then, the product of the absolute value of the difference between the first average actual water flow data and the second average actual water flow data and the blockage significance is calculated to obtain the corrected blockage significance of the branch pipe; finally, the product of the initial blockage possibility and the corrected blockage significance is normalized to obtain the blockage possibility of the branch pipe.

[0057] Specifically, the blockage significance of the branch pipeline reflects the significance of the blockage of the branch pipeline, which can be calculated by the following formula:

[0058]

[0059] In the above formula, x represents the blockage significance of the branch pipe, E(M1) represents the first average actual water flow data of the normal data set M1, represents the average theoretical water flow data of the normal data set M1, and k represents the water flow change trend of the abnormal data set M2. The larger the value of x, the more significant the blockage of the branch pipeline.

[0060] Furthermore, the corrected blockage significance of the branch pipeline after correction can be calculated using the following formula:

[0061] x′=x×|E(M1)-E(M2)|

[0062] In the above formula, x represents the blockage significance of the branch pipeline, E(M1) represents the first average actual water flow data of the normal data set M1, and E(M2) represents the second average actual water flow data of the abnormal data set M2. |E(M1)-E(M2)| represents the difference in water flow data between the normal data set M1 and the abnormal data set M2. The larger the value, the greater the difference between the normal data set M1 and the abnormal data set M2, and the larger x' is. The larger x' is, the greater the blockage significance of the branch pipeline is.

[0063] Furthermore, the possibility of blockage of the branch pipe can be expressed by the following formula:

[0064] W = sigmoid(L×x′)

[0065] In the above formula, W represents the possibility of blockage of the branch pipeline, L represents the initial possibility of blockage of the branch pipeline, x' represents the corrected blockage significance of the branch pipeline after correction, and sigmoid() represents the normalization function, which is used to normalize the product of the initial blockage possibility and the corrected blockage significance. If the initial blockage possibility of the branch pipeline of the branch pipeline is high and the blockage significance is high, the larger the value of W is, the greater the possibility of blockage of the branch pipeline is.

[0066] Step S105, using the blockage possibility and water pressure regulation necessity of each branch pipe of the drip irrigation group, determine the final water pressure regulation necessity of the drip irrigation system.

[0067] Specifically, the blockage probability of each branch pipe of the drip irrigation group of the drip irrigation system can be superimposed to obtain the superimposed blockage probability; the product of the superimposed blockage probability and the superimposed blockage probability is determined as the necessity of the final water pressure regulation of the drip irrigation system. The necessity of the final water pressure regulation of the drip irrigation system can be expressed by the following formula:

[0068]

[0069] In the above formula, S represents the necessity of final water pressure regulation of the drip irrigation system, W i Indicates the possibility of blockage of the i-th branch pipe; s indicates the necessity of water pressure regulation of the drip irrigation system, and K is the number of branch pipes. If all branch pipes under the drip irrigation group have a relatively obvious possibility of blockage, and the greater the necessity of water pressure regulation, it means that the abnormal water pressure in the current drip irrigation system is caused by blockage, and the larger the value of S, the greater the necessity of regulating the water pressure in the drip irrigation system.

[0070] Step S106: Controlling the drip irrigation water pressure of the drip irrigation system based on the necessity of final water pressure regulation.

[0071] Specifically, after obtaining the necessity of final water pressure regulation, when the necessity of final water pressure regulation is greater than a threshold value, a water pressure regulation instruction is sent to the drip irrigation system, and the drip irrigation water pressure of the drip irrigation system is controlled by the water pressure regulation instruction. When the necessity of final water pressure regulation is not greater than the threshold value, it means that the difference between the actual water pressure and the theoretical water pressure in the drip irrigation system is normal and is not caused by a blockage in the drip irrigation system. The current drip irrigation water pressure of the drip irrigation system is maintained for drip irrigation, and the water pressure is not adjusted. Among them, the drip irrigation water pressure of the drip irrigation system is controlled by the water pressure regulation instruction based on the degree of blockage in the drip irrigation system, or the drip irrigation water pressure of the drip irrigation system is controlled by a water pressure customized by the staff, and the embodiment of the present invention is not limited here.

[0072] Furthermore, it is also possible to record whether the blockage of each branch pipe is improved during the adjustment process of the drip irrigation water pressure of the drip irrigation system. If it is improved, the drip irrigation system is maintained at the current water pressure for drip irrigation; if it is not significantly improved, the drip irrigation equipment is shut down in time and relevant personnel are notified for maintenance, thereby improving the reliability of the drip irrigation system.

[0073] The embodiment of the present invention obtains the necessity of water pressure regulation of the drip irrigation system by analyzing the water pressure data sequence, actual water pressure and theoretical water pressure of each dripper of the drip irrigation system; the necessity of water pressure regulation of the drip irrigation system is corrected in combination with the possibility of blockage of each branch pipeline of the drip irrigation group, thereby obtaining the final necessity of water pressure regulation of the drip irrigation system. The drip irrigation water pressure of the drip irrigation system is controlled based on the final necessity of water pressure regulation, rather than relying solely on the difference between the theoretical water pressure and the actual water pressure to control the water pressure of the drip irrigation system, thereby improving the accuracy of water pressure control of the drip irrigation system.

[0074] Embodiment 2:

[0075] Corresponding to the drip irrigation water pressure control method based on water flow drive provided in the above embodiment, based on the same technical concept, such as Figure 2 As shown, the embodiment of the present invention further provides a drip irrigation water pressure control system 200 based on water flow drive, comprising: an acquisition module 201, used to acquire a water pressure data sequence of a drip irrigation group of a drip irrigation system during a drip irrigation process, wherein a drip irrigation group is used to drip irrigate crops of the same type, the drip irrigation group comprises at least one branch pipeline, and the branch pipeline comprises at least one dripper; a determination module 202, used to determine theoretical water pressure and theoretical water flow data of each dripper of the drip irrigation group according to theoretical water demand of the crops, and to determine the actual water pressure of each dripper of the drip irrigation group according to the water pressure data sequence; a determination module 203, used to determine the theoretical water pressure and theoretical water flow data of each dripper of the drip irrigation group according to the theoretical water demand of the crops, and to determine the actual water pressure of each dripper of the drip irrigation group according to the water pressure data sequence; a determination module 204, used to determine the theoretical water pressure and theoretical water flow data of each dripper of the drip irrigation group according to the theoretical water demand of the crops, and to determine the actual water pressure of each dripper of the drip irrigation group according to the water pressure data sequence; a determination module 205, used to determine the theoretical water pressure and theoretical water flow data of each dripper of the drip irrigation group according to the theoretical water demand of the crops, and to determine the actual water pressure of each dripper of the drip irrigation group according to the water pressure data sequence; a determination module 206, used to determine the theoretical water pressure and theoretical water flow data of each dripper of the drip irrigation group according to the theoretical water demand of the crops, and to determine the actual water pressure of each dripper of the drip irrigation group according to the water pressure data sequence; a determination module 207, used to determine the theoretical water pressure and theoretical water flow data of each dripper of the drip irrigation group according to the theoretical water demand of the crops, and to determine the actual water pressure of each dripper of the drip irrigation group according to the water pressure data sequence; a determination module 208, used to determine the theoretical water pressure and theoretical water flow data of each dripper of the drip irrigation group according to the 02, is also used to determine the necessity of water pressure regulation of the drip irrigation system by using the water pressure data sequence, actual water pressure and theoretical water pressure; the determination module 202 is also used to determine the possibility of blockage of each branch pipe of the drip irrigation group according to the actual water flow data and theoretical water flow data of each dripper on each branch pipe of the drip irrigation group; the determination module 202 is also used to determine the necessity of final water pressure regulation of the drip irrigation system by using the possibility of blockage of each branch pipe of the drip irrigation group and the necessity of water pressure regulation; the control module 203 is used to control the drip irrigation water pressure of the drip irrigation system based on the necessity of final water pressure regulation.

[0076] The embodiment of the present invention obtains the necessity of water pressure regulation of the drip irrigation system by analyzing the water pressure data sequence, actual water pressure and theoretical water pressure of each dripper of the drip irrigation system; the necessity of water pressure regulation of the drip irrigation system is corrected in combination with the possibility of blockage of each branch pipeline of the drip irrigation group, thereby obtaining the final necessity of water pressure regulation of the drip irrigation system. The drip irrigation water pressure of the drip irrigation system is controlled based on the final necessity of water pressure regulation, rather than relying solely on the difference between the theoretical water pressure and the actual water pressure to control the water pressure of the drip irrigation system, thereby improving the accuracy of water pressure control of the drip irrigation system.

[0077] Optionally, the determination module 202 is also used to calculate the absolute value of the difference between the theoretical water pressure and the actual water pressure of each dripper of the drip irrigation group of the drip irrigation system to obtain a first water pressure difference value of each dripper; superimpose the first water pressure difference value of each dripper to obtain a superimposed water pressure difference value; calculate the second water pressure difference value of two adjacent actual water pressures in the water pressure data sequence, and obtain the change trend characteristics of the water pressure data sequence; determine the necessity of water pressure regulation of the drip irrigation system according to the first water pressure difference value, the superimposed water pressure difference value, the second water pressure difference value and the change trend characteristics.

[0078] Optionally, the determination module 202 is also used to perform anomaly detection on the actual water flow data of each dripper on each branch pipe of the drip irrigation group to obtain a normal data set and an abnormal data set, wherein the actual water flow data in the normal data set is within a normal range, and the actual water flow data in the abnormal data set exceeds the normal range; determine the initial blockage possibility of each branch pipe according to the first number of drippers corresponding to the actual water flow data in the normal data set, the second number of drippers corresponding to the actual water flow data in the abnormal data set, and the total number of drippers in the branch pipe; determine the initial blockage possibility of the normal data set according to the actual water flow data of each dripper in the normal data set The first average actual water flow data is used to determine the average theoretical water flow data of the normal data set according to the theoretical water flow data of each dripper in the normal data set; the second average actual water flow data of the abnormal data set is used to determine the actual water flow data of each dripper in the abnormal data set; the actual water flow data in the abnormal data set are linearly fitted based on least squares to obtain the water flow change trend of the abnormal data set; the blockage possibility of each branch pipe of the drip irrigation group is determined according to the initial blockage possibility of each branch pipe, the first average actual water flow data, the average theoretical water flow data, the second average actual water flow data and the water flow change trend.

[0079] Optionally, the determination module 202 is also used to number the drippers corresponding to the actual water flow data in the normal data set and the abnormal data set along the direction of water flow on the branch pipe, respectively, to obtain the number of each dripper in the normal data set and the number of each dripper in the abnormal data set; select a first number of consecutive dripper numbers from the normal data set, and select a second number of consecutive dripper numbers from the abnormal data set, the first number being the maximum value of the consecutive number of dripper numbers in the normal data set, and the second number being the maximum value of the consecutive number of dripper numbers in the abnormal data set; determine the initial blockage possibility of each branch pipe according to the first number, the second number and the total number.

[0080] Optionally, the determination module 202 is further configured to determine a ratio of a sum of the first quantity and the second quantity to the total quantity as an initial blockage possibility of the branch pipeline.

[0081] Optionally, the determination module 202 is also used to calculate the product of the absolute value of the difference between the first average actual water flow data and the average theoretical water flow data and the absolute value of the water flow change trend to obtain the blockage significance of the branch pipeline; calculate the product of the absolute value of the difference between the first average actual water flow data and the second average actual water flow data and the blockage significance to obtain the corrected blockage significance of the branch pipeline; normalize the product of the initial blockage possibility and the corrected blockage significance to obtain the blockage possibility of the branch pipeline.

[0082] Optionally, the determination module 202 is further used to superimpose the blockage possibilities of each branch pipe of the drip irrigation group of the drip irrigation system to obtain the superimposed blockage possibility; and determine the product of the superimposed blockage possibility and the superimposed blockage possibility as the final water pressure regulation necessity of the drip irrigation system.

[0083] The control module 203 is further configured to send a water pressure adjustment instruction to the drip irrigation system when the final water pressure adjustment necessity is greater than a threshold value, and control the drip irrigation water pressure of the drip irrigation system through the water pressure adjustment instruction.

[0084] Embodiment three:

[0085] Corresponding to the drip irrigation water pressure control method based on water flow drive provided in the above embodiment, based on the same technical concept, the embodiment of the present invention also provides a drip irrigation water pressure control system based on water flow drive, and the drip irrigation water pressure control system based on water flow drive is used to execute the above drip irrigation water pressure control method based on water flow drive. Figure 3 A structural schematic diagram of another drip irrigation water pressure control system based on water flow drive to implement various embodiments of the present invention is shown as follows: Figure 3As shown in the hardware level, the drip irrigation water pressure control system based on water flow drive includes a processor, and optionally, an internal bus, a network interface, and a memory. Among them, the memory may include a memory, such as a high-speed random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk storage, etc. Of course, the drip irrigation water pressure control system based on water flow drive may also include hardware required for other services.

[0086] The processor, network interface and memory can be interconnected through an internal bus, which can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one bidirectional arrow is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0087] The memory is used to store programs. Specifically, the program may include program code, and the program code includes computer operation commands. The memory may include internal memory and non-volatile memory, and provide instructions and data to the processor.

[0088] The processor reads the corresponding computer program from the non-volatile memory into the memory and then runs it, forming a device for locating the specified user at the logical level. The processor executes the program stored in the memory and is specifically used to execute: Figure 3 The method disclosed in the illustrated embodiment implements the functions and beneficial effects of each method in the previous method embodiments, which will not be described in detail here.

[0089] It should be noted that the drip irrigation water pressure control system based on water flow drive provided in the embodiment of the present invention and the drip irrigation water pressure control method based on water flow drive provided in the embodiment of the present invention are based on the same inventive concept. Therefore, the specific implementation of this embodiment can refer to the implementation of the aforementioned drip irrigation water pressure control method based on water flow drive, and has the same or similar beneficial effects, and the repeated parts will not be repeated.

[0090] It should be noted that the sequence of the above embodiments of the present invention is only for description and does not represent the advantages and disadvantages of the embodiments. The processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0091] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

Claims

1. A drip irrigation water pressure control method based on water flow drive, characterized in that: The drip irrigation water pressure control method based on water flow drive includes: Acquire a water pressure data sequence of a drip irrigation group of a drip irrigation system during a drip irrigation process, wherein one of the drip irrigation groups is used for drip irrigation of crops of the same type, the drip irrigation group comprises at least one branch pipeline, and the branch pipeline comprises at least one dripper; Determine theoretical water pressure and theoretical water flow data of each dripper of the drip irrigation group according to the theoretical water demand of the crop, and determine actual water pressure of each dripper of the drip irrigation group according to the water pressure data sequence; Determining the necessity of water pressure regulation of the drip irrigation system by using the water pressure data sequence, the actual water pressure and the theoretical water pressure; Determine the possibility of blockage of each branch pipe of the drip irrigation group according to the actual water flow data of each dripper on each branch pipe of the drip irrigation group and the theoretical water flow data; Determine the final necessity of water pressure regulation of the drip irrigation system by using the possibility of blockage of each branch pipeline of the drip irrigation group and the necessity of water pressure regulation; The drip irrigation water pressure of the drip irrigation system is controlled based on the final water pressure adjustment necessity.

2. The water pressure control method for drip irrigation based on water flow drive according to claim 1, characterized in that: The determining the necessity of water pressure regulation of the drip irrigation system by using the water pressure data sequence, the actual water pressure and the theoretical water pressure comprises: Calculating the absolute value of the difference between the theoretical water pressure and the actual water pressure of each dripper of the drip irrigation group of the drip irrigation system to obtain a first water pressure difference value of each dripper; Superimposing the first water pressure difference value of each dripper to obtain a superimposed water pressure difference value; Calculating a second water pressure difference value between two adjacent actual water pressures in the water pressure data sequence, and obtaining a change trend characteristic of the water pressure data sequence; The necessity of water pressure regulation of the drip irrigation system is determined according to the first water pressure difference value, the superimposed water pressure difference value, the second water pressure difference value and the change trend characteristic.

3. The drip irrigation water pressure control method based on water flow drive according to claim 1 or 2, characterized in that: Determining the possibility of blockage of each branch pipe of the drip irrigation group according to the actual water flow data of each dripper on each branch pipe of the drip irrigation group and the theoretical water flow data includes: Performing abnormality detection on the actual water flow data of each dripper on each branch pipeline of the drip irrigation group to obtain a normal data set and an abnormal data set, wherein the actual water flow data in the normal data set is within a normal range, and the actual water flow data in the abnormal data set exceeds the normal range; Determine the initial blockage possibility of each branch pipeline according to the first number of drippers corresponding to the actual water flow data in the normal data set, the second number of drippers corresponding to the actual water flow data in the abnormal data set, and the total number of drippers in the branch pipeline; Determine the first average actual water flow data of the normal data set according to the actual water flow data of each dripper in the normal data set, determine the average theoretical water flow data of the normal data set according to the theoretical water flow data of each dripper in the normal data set; determine the second average actual water flow data of the abnormal data set according to the actual water flow data of each dripper in the abnormal data set; Performing linear fitting on the actual water flow data in the abnormal data set based on least squares to obtain the water flow change trend of the abnormal data set; The blockage possibility of each branch pipe of the drip irrigation group is determined according to the initial blockage possibility of each branch pipe, the first average actual water flow data, the average theoretical water flow data, the second average actual water flow data and the water flow change trend.

4. The water pressure control method for drip irrigation based on water flow drive according to claim 3 is characterized in that: The determining the initial blockage possibility of each branch pipeline according to the first number of drippers corresponding to the actual water flow data in the normal data set, the second number of drippers corresponding to the actual water flow data in the abnormal data set, and the total number of drippers in the branch pipeline comprises: The drippers corresponding to the actual water flow data in the normal data set and the abnormal data set are numbered on the branch pipe along the direction of water flow to obtain the number of each dripper in the normal data set and the number of each dripper in the abnormal data set; Selecting a first number of consecutive dripper numbers from the normal data set, and selecting a second number of consecutive dripper numbers from the abnormal data set, wherein the first number is the maximum value of the consecutive number of dripper numbers in the normal data set, and the second number is the maximum value of the consecutive number of dripper numbers in the abnormal data set; An initial blocking possibility of each branch pipeline is determined according to the first number, the second number and the total number.

5. The method for controlling water pressure of drip irrigation based on water flow drive according to claim 3, characterized in that: Determining the initial blocking possibility of each branch pipeline according to the first quantity, the second quantity and the total quantity includes: The ratio of the sum of the first number and the second number to the total number is determined as the initial blockage possibility of the branch pipeline.

6. The water pressure control method for drip irrigation based on water flow drive according to claim 3 is characterized in that: Determining the blockage possibility of each branch pipe of the drip irrigation group according to the initial blockage possibility of each branch pipe, the first average actual water flow data, the average theoretical water flow data, the second average actual water flow data, and the water flow change trend includes: Calculate the product of the absolute value of the difference between the first average actual water flow data and the average theoretical water flow data and the absolute value of the water flow change trend to obtain the blockage significance of the branch pipeline; Calculate the product of the absolute value of the difference between the first average actual water flow data and the second average actual water flow data and the blockage significance level to obtain the corrected blockage significance level of the branch pipeline after correction; The product of the initial blockage possibility and the modified blockage significance is normalized to obtain the blockage possibility of the branch pipeline.

7. The method for controlling water pressure of drip irrigation based on water flow drive according to claim 1, characterized in that: The method of determining the necessity of final water pressure regulation of the drip irrigation system by using the possibility of blockage of each branch pipe of the drip irrigation group and the necessity of water pressure regulation comprises: Superimposing the blocking probability of each branch pipeline of the drip irrigation group of the drip irrigation system to obtain a superimposed blocking probability; The product of the superimposed clogging probability and the superimposed clogging probability is determined as the final water pressure regulation necessity of the drip irrigation system.

8. The method for controlling water pressure of drip irrigation based on water flow drive according to claim 1, characterized in that: The controlling of the drip irrigation water pressure of the drip irrigation system based on the necessity of the final water pressure regulation comprises: When the necessity of the final water pressure regulation is greater than a threshold value, a water pressure regulation instruction is sent to the drip irrigation system, and the drip irrigation water pressure of the drip irrigation system is controlled by the water pressure regulation instruction.

9. A drip irrigation water pressure control system based on water flow drive, characterized in that: include: An acquisition module, used for acquiring a water pressure data sequence of a drip irrigation group of a drip irrigation system during a drip irrigation process, wherein one of the drip irrigation groups is used for drip irrigation of crops of the same type, the drip irrigation group comprises at least one branch pipeline, and the branch pipeline comprises at least one dripper; A determination module, configured to determine theoretical water pressure and theoretical water flow data of each dripper of the drip irrigation group according to the theoretical water demand of the crop, and to determine actual water pressure of each dripper of the drip irrigation group according to the water pressure data sequence; The determination module is further used to determine the necessity of water pressure regulation of the drip irrigation system by using the water pressure data sequence, the actual water pressure and the theoretical water pressure; The determination module is further used to determine the possibility of blockage of each branch pipeline of the drip irrigation group according to the actual water flow data of each dripper on each branch pipeline of the drip irrigation group and the theoretical water flow data; The determination module is further used to determine the necessity of final water pressure regulation of the drip irrigation system by using the possibility of blockage of each branch pipeline of the drip irrigation group and the necessity of water pressure regulation; A control module is used to control the drip irrigation water pressure of the drip irrigation system based on the necessity of the final water pressure regulation.

10. A drip irrigation water pressure control system based on water flow drive, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the steps of the water flow driven drip irrigation water pressure control method as described in any one of claims 1 to 8 are implemented.

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