A municipal green plant irrigation system intelligent maintenance method

Abstract

The present application relates to the technical field of irrigation system maintenance, in particular to a kind of municipal green plant irrigation system intelligent maintenance method, comprising: obtaining flow data and pressure data;According to the flow data under each detection time period, the pressure data under each detection time is corrected, and the corrected pressure of each detection time is obtained;According to the amplitude and change of the corrected pressure of each detection time, the scouring water flow velocity of each scouring time is obtained;According to the scouring water flow velocity of each scouring time, the damage degree of pipeline is obtained in combination with the time interval between adjacent scouring time;According to the damage degree of pipeline, the pipeline is replaced.The present application analyzes the clogging degree of pipeline by the flow rate and pressure change at the dripper, and the pipeline is scoured, and further according to the scouring effect, the damage condition of pipeline is evaluated, so that the pipeline is replaced in time, to improve the irrigation efficiency and optimize the growth environment of green plants.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of irrigation system maintenance, in particular to an intelligent maintenance method for a municipal green plant irrigation system. BACKGROUND

[0002] Irrigating urban green plants in a drip irrigation manner is a comprehensive solution for efficient resource utilization, healthy green plant management and environmental protection. It not only saves water and reduces operation costs, but also improves greening effects through precise irrigation. The pipeline in the drip irrigation system is always complex and tortuous to adapt to the layout of urban green plant planting and ensure water pressure balance in the drip irrigation system. Therefore, the pipeline in the drip irrigation system is prone to blockage.

[0003] To avoid blockage of the pipeline in the drip irrigation system, the traditional method is to increase the water flow rate in the pipeline for flushing at regular time intervals. However, flushing the inside of the pipeline at fixed time intervals does not actually consider the real blockage inside the pipeline, i.e., increasing the water flow rate to clean the pipeline blockage at fixed time intervals lacks pertinence, which causes resource waste and is not conducive to long-term operation and maintenance of the pipeline. SUMMARY

[0004] The present application provides an intelligent maintenance method for a municipal green plant irrigation system to solve the existing problem that the fixed time interval flushing method for preventing pipeline blockage is not conducive to long-term operation and maintenance of the pipeline.

[0005] The intelligent maintenance method for a municipal green plant irrigation system of the present application adopts the following technical solution:

[0006] The method comprises the following steps:

[0007] Obtain pressure data at each detection time and flow data in each detection time period;

[0008] Correct the pressure data at each detection time according to the flow data in each detection time period to obtain corrected pressure at each detection time;

[0009] According to the amplitude and change of the corrected pressure at each detection time, obtain flushing necessity at each detection time; according to the flushing necessity at each detection time, screen to obtain a plurality of flushing times; according to the difference in corrected pressure between adjacent flushing times, obtain flushing water flow rate at each flushing time;

[0010] According to the flushing water flow rate at each flushing time, combined with the time interval between adjacent flushing times, obtain the damage degree of the pipeline at each flushing time; replace the pipeline according to the damage degree of the pipeline.

[0011] Preferably, the method for obtaining the pressure data at each detection time and the flow data in each detection time interval comprises the following specific steps:

[0012] The pressure sensor is installed at each drip irrigation port of the drip irrigation pipe, and the pressure sensor is installed at each branch pipe; a collection time interval is preset When the drip irrigation pipe is used to irrigate municipal green plants, the pressure sensor detects the pressure data at each drip irrigation port every seconds, thereby obtaining the pressure data at each detection time; the flow sensor at each branch pipe collects the flow data of each branch pipe in seconds, thereby obtaining the flow data in each detection time interval.

[0013] Preferably, the method for correcting the pressure data at each detection time according to the flow data in each detection time interval to obtain the corrected pressure at each detection time comprises the following specific steps:

[0014] For the i-th detection time, the pressure data at all drip irrigation ports in the i-th detection time and the i+1-th detection time are obtained; the flow data at all branch pipes in all detection time intervals are combined to obtain the corrected pressure at the i-th detection time, and the specific calculation formula is as follows:

[0015]

[0016]

[0017] Preferably, the method for obtaining the flushing necessity at each detection time according to the amplitude and change of the corrected pressure at each detection time comprises the following specific steps: ​​​​​​​​​​​​​​​​​​​

[0018] presetting an initial flushing speed taking the first detection time as the first flushing time, and setting the water flow speed in the pipeline as meters per second to flush the pipeline;

[0019] starting from the second detection time, taking all the detection times from the second detection time to the last flushing time as a flushing evaluation time period of the second detection time, and obtaining the flushing necessity of the second detection time according to the modified pressure of the detection times in the flushing evaluation time period of the second detection time.

[0020] Preferably, the obtaining of the flushing necessity of the second detection time comprises a specific calculation formula as follows:

[0021]

[0022] wherein, represents the flushing necessity of the second detection time; represents the number of the detection times in the flushing evaluation time period of the second detection time; represents the modified pressure of the first detection time in the flushing evaluation time period of the second detection time; represents the modified pressure of the first detection time in the flushing evaluation time period of the second detection time; represents the modified pressure of the first detection time in the flushing evaluation time period of the second detection time; represents the modified pressure of the first detection time in the flushing evaluation time period of the second detection time; represents the modified pressure of the second detection time; represents the maximum value normalization function.

[0023] Preferably, the screening of the flushing times according to the flushing necessity of each detection time comprises a specific method as follows:

[0024] presetting a flushing necessity threshold ; for any detection time, if the flushing necessity of the detection time is less than or equal to , the pipeline is not flushed, and if the flushing necessity of the detection time is greater than , the pipeline is flushed, and the detection time is recorded as a flushing time; and a plurality of flushing times are obtained.

[0025] Preferably, the obtaining of the flushing water flow speed of each flushing time according to the difference in the modified pressure between adjacent flushing times comprises a specific method as follows:

[0026] for the first flushing time, the flushing water flow speed of the first flushing time is adjusted according to the difference in the modified pressure between the first flushing time and the second flushing time; ​​​The flushing water velocity at the 1st flushing moment is obtained. The speed of the flushing water flow at each flushing moment.

[0027] Preferably, the acquisition of the first The specific calculation formula for the flushing water velocity at each flushing moment is as follows:

[0028]

[0029] In the formula, Indicates the first The speed of the flushing water flow at each flushing moment; Indicates the first The speed of the flushing water flow at each flushing moment; Indicates the first Corrected pressure at each flushing moment; Indicates the first Corrected pressure at each flushing moment; This represents the maximum value normalization function; This represents the hyperbolic tangent function.

[0030] Preferably, the method for obtaining the degree of pipe damage at each flushing moment based on the flushing water flow velocity at each flushing moment and the time interval between adjacent flushing moments includes:

[0031] For the The first flushing moment, according to the first The first flushing moment and the first The time interval between each flushing moment, and the first flushing moment The flushing water velocity at the 1st flushing moment is obtained. The specific formula for calculating the degree of damage to the pipeline at each flushing time is as follows:

[0032]

[0033] In the formula, Indicates the first The extent of pipe damage at each flushing moment; Indicates the first The necessity of flushing at each flushing moment; Indicates the first The first flushing moment and the first The time interval between each flushing moment; This indicates the maximum permissible water flow velocity in the pipes of the irrigation system. Indicates the first The speed of the flushing water flow at each flushing moment; This represents the sigmoid function.

[0034] Preferably, the pipe is replaced according to the damage degree of the pipe, and the specific method comprises the following steps:

[0035] A damage degree threshold is preset ; for the first flushing moment; if the damage degree of the pipe at the first flushing moment is greater than or equal to , the pipe in the irrigation system is immediately replaced.

[0036] The technical scheme of the present application has the beneficial effects that: the present application corrects the pressure at each detection moment by analyzing the pressure data at each detection moment and the flow data in each detection period, obtains the corrected pressure at each detection moment, thereby avoiding the interference of the water flow in the pipe on the collected pressure information; further analyzes and excludes the pressure information after the interference of the water flow in the pipe, evaluates the real blockage in the pipe, adaptively sets the flushing moment, can more efficiently clean the blockage area, saves water resources and energy, reduces the wear and damage of the system; finally, according to the data of the flushing moment, the damage degree of the pipe is analyzed, thereby the pipe is replaced in time to improve the irrigation efficiency and optimize the growth environment of the green plants. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0038] Figure 1 The step flow chart of the intelligent maintenance method of the municipal green plant irrigation system of the present application;

[0039] Figure 2 The flow chart for flushing and replacing the pipe. DETAILED DESCRIPTION

[0040] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined invention purpose, the specific implementation, structure, features and effects of the intelligent maintenance method of the municipal green plant irrigation system according to the present application are described in detail as follows by combining the drawings and preferred embodiments. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.

[0041] Unless otherwise defined, 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 application belongs.

[0042] The specific scheme of the intelligent maintenance method for the municipal green plant irrigation system is described below in combination with the drawings.

[0043] Please refer to Figure 1 , which shows a step flow chart of the intelligent maintenance method for the municipal green plant irrigation system according to an embodiment of the application, which comprises the following steps:

[0044] Step S001: Obtain the pressure data at each detection time and the flow data in each detection time period.

[0045] It should be noted that the embodiment is an intelligent maintenance method for the municipal green plant irrigation system, which specifically maintains the irrigation system for the municipal green plants, avoids the blockage of the pipes in the irrigation system, further analyzes the damage degree of the pipes in the irrigation system, and timely replaces the pipes in the irrigation system, so as to optimize the growth environment of the green plants.

[0046] It should be further noted that the irrigation system for the municipal green plants in the embodiment is composed of a head hub, a pipe, a dripper, a sensor, and a central processor.

[0047] The head hub comprises, but is not limited to, a water pump, a fertilizer tank, a filter, and a control and measurement instrument, and its function is to pump water, apply fertilizer, filter, and send a certain amount of water into a main pipe at a certain pressure.

[0048] The pipe comprises, but is not limited to, a main pipe, a branch pipe, a capillary pipe, and necessary adjusting equipment, and its function is to uniformly deliver the pressurized water to the dripper.

[0049] The function of the dripper is to make the water flow drop into the soil in the form of drops when passing through a small hole, and the dripper is usually placed on the soil surface or shallowly buried in the soil.

[0050] The sensor is a pressure sensor installed at the dripper to collect the pressure information at the dripper during drip irrigation, and a flow sensor installed at each branch pipe to collect the flow information at the branch pipe during drip irrigation.

[0051] The function of the central processor is to adjust the flushing water flow speed of the drip irrigation pipe by analyzing the flow information and the pressure information at the dripper during drip irrigation.

[0052] Specifically, a pressure sensor is installed at each drip irrigation port of the drip irrigation pipe, and a pressure sensor is installed at each branch pipe; a preset collection time interval is set , The specific value can be set according to the actual situation. This embodiment does not make a hard requirement. In this embodiment, it is used as... The description describes how, when using drip irrigation pipes to irrigate municipal greenery, the pressure sensor is set at intervals... The pressure data at each drip inlet is measured once per second to obtain the pressure data at each measurement moment; the pressure data at each branch pipe is collected from the flow sensor at each branch pipe. Traffic data within seconds is used to obtain traffic data for each detection time period.

[0053] Step S002: Correct the pressure data at each detection time based on the flow data during each detection time period to obtain the corrected pressure at each detection time.

[0054] It should be noted that this embodiment, as an intelligent maintenance method for municipal greening plant irrigation systems, analyzes and judges the blockage of the irrigation system pipes by using the pressure information from each dripper. Water seeps out of the branch pipes for irrigation, causing a decrease in the water volume within the branch pipes. The main pipe replenishes water to the branch pipes, creating water flow. The volume of the flowing water is constantly changing, causing the pressure information collected from the drippers to not represent the true pressure information in the irrigation system. Therefore, to more accurately analyze the blockage in the pipes using pressure information, it is necessary to correct the pressure information affected by flow rate. The greater the water flow rate in the irrigation system pipes, the lower the collected pressure will be.

[0055] Preferably, in a specific embodiment of the present invention, for the first At the detection time, according to the first detection moment The and the first Pressure data at all drippers at the first detection time; combined with flow data at all branch pipes during all detection time periods, to obtain the first... The specific formula for calculating the corrected pressure at each detection moment is as follows:

[0056]

[0057] In the formula, Indicates the first Corrected pressure at each detection moment; Indicates the first The average pressure data at all drippers at each detection time; Indicates the first The average pressure data at all drippers at each detection time; Indicates the first The detection time to the first The average flow data collected by all flow sensors during the detection time period consisting of several detection times; Indicates the first The detection time to the first a mean value of flow data collected by all flow sensors in a detection time period consisting of all detection instants; represents a maximum value normalization function, and the specific normalization range is ; represents an absolute value function.

[0058] Similarly, the corrected pressure at each detection instant is obtained.

[0059] It should be noted that, as the water flow in the pipeline increases, the collected pressure at the emitter will be lower, so the greater the value of the water flow increase in the adjacent detection time period, the greater the collected pressure data should be increased, so as to avoid the interference of the water flow on the collected pressure information, and obtain the corrected pressure; and the corrected pressure represents the pressure information excluding the interference of the water flow in the pipeline; The greater the value, the higher the amplitude of the water flow increase in the branch pipeline, which further causes the collected pressure data at the emitter to be smaller than the true pressure, so it is necessary to increase the collected pressure data at the emitter to avoid the influence of the water flow in the pipeline on the pressure information.

[0060] At this point, the corrected pressure at each detection instant is obtained.

[0061] Step S003: obtaining the flushing necessity at each detection instant according to the amplitude and change of the corrected pressure at each detection instant; screening a plurality of flushing instants according to the flushing necessity at each detection instant; and obtaining the flushing water flow speed at each flushing instant according to the difference in the corrected pressure between adjacent flushing instants.

[0062] It should be noted that, as the water flow in the pipeline increases, the collected pressure at the emitter will be lower, so the greater the value of the water flow increase in the adjacent detection time period, the greater the collected pressure data should be increased, so as to avoid the interference of the water flow on the collected pressure information, and obtain the corrected pressure; and the corrected pressure represents the pressure information excluding the interference of the water flow in the pipeline;

[0063] Preferably, in a specific embodiment of the present application, an initial flushing speed , The specific value can be set by itself in combination with the specific actual situation, and the present embodiment does not make a hard requirement, and in the present embodiment, it is described that The first detection instant is taken as the first flushing instant, and the water flow speed in the pipeline is set as The pipe is flushed at a rate of meters per second.

[0064] Starting from the second detection moment, all detection moments from the second detection moment to the previous scouring moment (including the second detection moment and the previous scouring moment) are recorded as the scouring evaluation time period of the second detection moment. Based on the corrected pressure of the detection moments within the scouring evaluation time period of the second detection moment, the necessity of scouring at the second detection moment is obtained. The specific calculation formula is as follows:

[0065]

[0066] In the formula, This indicates the necessity of flushing at the second detection moment; This indicates the number of detection times within the scour assessment period of the second detection time. This indicates the scour assessment time period at the second detection moment. Corrected pressure at each detection moment; This indicates the scour assessment time period at the second detection moment. Corrected pressure at each detection moment; This indicates the corrected pressure at the second detection moment; This represents the maximum value normalization function, whose normalization range is the corrected pressure at all detection times.

[0067] Similarly, the necessity of flushing at each detection moment can be obtained.

[0068] It should be noted that, This represents the pressure change after excluding the interference of water flow velocity, while when A higher value indicates greater pressure at the dripper in the irrigation system, meaning a higher likelihood of blockage buildup. Conversely, a higher corrected pressure at the second detection time indicates stronger blockage in the drip irrigation system at that moment, necessitating flushing of the pipes to remove the blockage. Therefore, this can be used as a basis to determine whether flushing should be performed at the detection time.

[0069] Specifically, a threshold for the necessity of flushing is preset. , The specific value can be set according to the actual situation. This embodiment does not make a hard requirement. In this embodiment, it is used as... The description continues; for any detection time, if the flushing necessity of the detection time is less than or equal to... If the necessity of flushing at the time of detection is greater than [a certain value], then the pipeline will not be flushed. If the pipeline is flushed, the detection time is recorded as the flushing time; thus, several flushing times are obtained.

[0070] It needs to be further explained that, if the water flow speed is simply adjusted to the maximum for flushing when flushing the pipeline, a large amount of water resources will be wasted, and the operation burden of the irrigation system will be increased, which is not conducive to the long-term operation and maintenance of the irrigation system; therefore, the actual pressure information in the pipeline is analyzed in this embodiment to evaluate the blockage degree of the pipeline, so as to adaptively set the water flow speed for flushing the pipeline.

[0071] Preferably, in a specific embodiment of the present application, for the first flushing moment, the flushing water flow speed of the first flushing moment is adjusted as the flushing water flow speed of the second flushing moment according to the difference between the corrected pressure of the first flushing moment and the corrected pressure of the second flushing moment, and the specific calculation formula is as follows:

[0072]

[0073] In the formula, V1 represents the flushing water flow speed of the first flushing moment; V2 represents the flushing water flow speed of the second flushing moment; P1 represents the corrected pressure of the first flushing moment; P2 represents the corrected pressure of the second flushing moment; max represents the maximum value normalization function, and the normalization range is the maximum value of the corrected pressure of all flushing moments; tanh represents the hyperbolic tangent function, which is used to map the value of P1-P2 to the range of [-1, 1] in this embodiment.

[0074] It needs to be explained that, for the two adjacent flushing moments, when the corrected pressure of the latter flushing moment is greater than the corrected pressure of the former flushing moment, it means that the blockage degree of the pipeline corresponding to the latter flushing moment is greater, and a greater water flow speed is needed to flush the pipeline; otherwise, a smaller flushing speed is needed to flush the pipeline.

[0075] Thus, the flushing water flow speed of the flushing moment is obtained.

[0076] Step S004: according to the flushing water flow speed of each flushing moment and the time interval between the adjacent flushing moments, the damage degree of the pipeline at each flushing moment is obtained; and the pipeline is replaced according to the damage degree of the pipeline.

[0077] ​​​​​​​​​​​​​​​​​It should be noted that the water flow flushing can prevent the pipe blockage in the drip irrigation system to some extent. The pipe will gradually accumulate mineral deposits, rust and other stubborn blockages over time, which are difficult to remove by water flow flushing. Therefore, to avoid pipe blockage, the flushing water flow speed at the flushing moment, the time interval between adjacent flushing moments and the flushing necessity at the flushing moment are obtained by step S003 to evaluate the damage degree of the pipe, and the pipe is replaced and maintained in time to improve the irrigation efficiency and optimize the growth environment of the green plants.

[0078] Preferably, in one specific embodiment of the present application, for the first flushing moment, the damage degree of the pipe at the first flushing moment is obtained according to the time interval between the first flushing moment and the first flushing moment, and the flushing water flow speed at the first flushing moment, and the specific calculation formula is:

[0079]

[0080] In the formula, D1 represents the damage degree of the pipe at the first flushing moment; N1 represents the flushing necessity at the first flushing moment; T1 represents the time interval between the first flushing moment and the first flushing moment; V1 represents the flushing water flow speed at the first flushing moment; Vmax represents the maximum water flow speed allowed in the pipe of the irrigation system; and sigmoid represents a sigmoid function used for normalization in the present embodiment.

[0081] It should be noted that the greater the value of N1 is, the more the pipe needs to be flushed again in a short time after flushing, i.e., the flushing method is not enough to clean the blockage in the pipe, and the greater the value of V1 is, the closer the flushing speed is to the maximum water flow speed allowed in the pipe of the irrigation system, i.e., the cleaning intensity is close to the maximum cleaning intensity. Therefore, the greater the value of D1 is, the closer the cleaning intensity is to the maximum cleaning intensity, and the cleaning effect of the pipe is not good, so the pipe of the irrigation system should be replaced.

[0082] Specifically, a damage degree threshold Dth is preset. ​​​​​​​​​​​​​​​The specific value can be set according to the actual situation. This embodiment does not make a hard requirement. In this embodiment, it is used as... To describe; for the first The first flushing moment; if the first The degree of damage to the pipeline at each flushing moment is greater than or equal to If the problem persists, immediately replace the pipes in the irrigation system. The degree of damage to the pipeline at each flushing moment is less than Then continue to clean the pipes by flushing.

[0083] It should be noted that this embodiment obtains the actual pressure in the pipeline by analyzing the pressure data at each detection moment and the flow data during each detection period. This is used to assess the actual blockage situation inside the pipeline, thereby clearing the blockage area and reducing the operating burden of the irrigation system while saving water resources and energy. Finally, based on the various data at the flushing moment, the degree of damage to the pipeline is analyzed and the pipeline is replaced in a timely manner to maintain the municipal greening plant irrigation system, thereby improving irrigation efficiency and optimizing the growth environment of the green plants.

[0084] This embodiment provides a flowchart for flushing and replacing the pipeline, as follows: Figure 2 As shown, Figure 2 This is a flowchart for flushing and replacing pipes.

[0085] This concludes the embodiment.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for intelligent maintenance of a municipal green plant irrigation system, characterized in that, The method comprises the following steps: Obtain pressure data at each detection time and flow data in each detection time period; Correct the pressure data at each detection time according to the flow data in each detection time period to obtain corrected pressure at each detection time; The specific method for correcting the pressure data at each detection time according to the flow data in each detection time period to obtain corrected pressure at each detection time comprises: For the At the detection time, according to the first detection moment The and the first Pressure data at all drippers at the first detection time; combined with flow data at all branch pipes during all detection time periods, to obtain the first... The specific formula for calculating the corrected pressure at each detection moment is as follows: ； In the formula, represents the correction pressure at the th detection time; represents the correction pressure at the th detection time; represents the average of the pressure data at all emitters at the th detection time; represents the average of the pressure data at all emitters at the th detection time; represents the average of the flow data collected by all flow sensors in the detection time period from the th detection time to the th detection time; represents the average of the flow data collected by all flow sensors in the detection time period from the th detection time to the th detection time; represents the maximum value normalization function, and the specific normalization range is the th detection time; represents the absolute value function; Obtain flushing necessity at each detection time according to the amplitude and change of the corrected pressure at each detection time; The specific method for obtaining flushing necessity at each detection time according to the amplitude and change of the corrected pressure at each detection time comprises: presetting an initial flushing speed the first detection time as the first flushing time, and setting the flow speed of water in the pipeline as meters per second to flush the pipeline; From the second detection time, all detection times from the second detection time to the last flushing time are recorded as a flushing evaluation time period of the second detection time, and flushing necessity of the second detection time is obtained according to the corrected pressure at the detection times in the flushing evaluation time period of the second detection time; The specific calculation formula for obtaining flushing necessity of the second detection time comprises: ； In the formula, This indicates the necessity of flushing at the second detection moment; This indicates the number of detection times within the scour assessment period of the second detection time. This indicates the scour assessment time period at the second detection moment. Corrected pressure at each detection moment; This indicates the scour assessment time period at the second detection moment. Corrected pressure at each detection moment; This indicates the corrected pressure at the second detection moment; This represents the maximum value normalization function, whose normalization range is the corrected pressure at all detection times; Screen a plurality of flushing times according to the flushing necessity at each detection time, and obtain flushing flow velocity at each flushing time according to the difference in corrected pressure between adjacent flushing times; Obtain damage degree of the pipeline at each flushing time according to the flushing flow velocity at each flushing time and the time interval between adjacent flushing times, and replace the pipeline according to the damage degree of the pipeline.

2. The intelligent maintenance method of a municipal green plant irrigation system according to claim 1, characterized in that, The specific method for obtaining pressure data at each detection time and flow data in each detection time period comprises: Install a pressure sensor at each drip irrigation port of the drip irrigation pipeline and install a pressure sensor at each branch pipe; Preset a data collection time interval When using drip irrigation pipes to irrigate municipal green plants, the pressure sensor is set to operate at intervals of [missing information]. The pressure data at each drip inlet is measured once per second to obtain the pressure data at each measurement moment; the flow rate data at each branch pipe is collected from the flow sensor at each branch pipe. Traffic data within seconds is used to obtain traffic data for each detection time period.

3. The intelligent maintenance method of a municipal green-plant irrigation system according to claim 1, wherein, The specific method for screening a plurality of flushing times according to the flushing necessity at each detection time comprises: A preset flushing necessity threshold is set If the flushing necessity at any detection moment is less than or equal to , no flushing is performed on the pipeline, and if the flushing necessity at the detection moment is greater than , the pipeline is flushed, and the detection moment is recorded as a flushing moment; and a plurality of flushing moments are obtained.

4. The intelligent maintenance method of a municipal green-plant irrigation system according to claim 1, wherein, The specific method for obtaining flushing flow velocity at each flushing time according to the difference in corrected pressure between adjacent flushing times comprises: For the The first flushing moment, according to the first The first flushing moment and the first The pressure difference at each flushing moment is corrected, adjusting the first... The flushing water velocity at the first flushing moment is obtained. The speed of the flushing water flow at each flushing moment.

5. The intelligent maintenance method of a municipal green-plant irrigation system according to claim 4, wherein, The acquisition of the first The specific calculation formula for the flushing water velocity at each flushing moment is as follows: ； wherein represents the scouring flow velocity at the th scouring time instant; represents the scouring flow velocity at the th scouring time instant; represents the modified pressure at the th scouring time instant; represents the modified pressure at the th scouring time instant; represents a maximum value normalization function with a normalization range of all scouring time instants; represents a hyperbolic tangent function.

6. The intelligent maintenance method of a municipal green-plant irrigation system according to claim 5, wherein, The specific method for obtaining damage degree of the pipeline at each flushing time according to the flushing flow velocity at each flushing time and the time interval between adjacent flushing times comprises: For the The first flushing moment, according to the first The first flushing moment and the first The time interval between each flushing moment, and the first flushing moment The flushing water velocity at the 1st flushing moment is obtained. The specific formula for calculating the degree of damage to the pipeline at each flushing time is as follows: ； wherein represents the damage degree of the pipe at the th flushing moment; represents the flushing necessity at the th flushing moment; represents the time interval between the th flushing moment and the th flushing moment; represents the maximum water flow speed allowed in the pipe of the irrigation system; represents the flushing water flow speed at the th flushing moment; represents the sigmoid function.

7. The intelligent maintenance method of a municipal green-plant irrigation system according to claim 4, wherein, The specific method for replacing the pipeline according to the damage degree of the pipeline comprises: Preset a damage level threshold For the first The first flushing moment; if the first The degree of damage to the pipeline at each flushing moment is greater than or equal to If so, replace the pipes in the irrigation system immediately.

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