Water supply control method and system based on self-adaptive adjustment of fluid flow

Abstract

The invention discloses a water supply control method and system based on fluid flow self-adaptive adjustment. The efficiency and reliability of a water supply system are improved. The method comprises the steps that pipe network layout information of a target water supply area is acquired, a water supply network topological structure is constructed, and the layout position of a water supply monitoring sensor is determined; constructing a water supply monitoring simulation model based on a topological structure and sensor layout, monitoring a water supply condition in real time, and identifying water demand characteristics; constructing an adaptive flow regulation model according to the water demand characteristics, analyzing demands, determining water supply control parameters, and generating a water supply control strategy; the water supply control is realized through the strategy, the satisfaction degree of the water demand is evaluated in real time, and the water supply control strategy is optimized. The water supply system can intelligently adapt to water demand changes, and the operation efficiency and service quality of the water supply system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water supply control, and in particular to a water supply control method and system based on fluid flow adaptive regulation. Background Art

[0002] The water supply system is an important part of urban infrastructure. Its operating efficiency and service quality directly affect the quality of life of residents and urban economic development. With the acceleration of urbanization and the complexity of water demand, the design and operation of traditional water supply systems face many challenges.

[0003] Existing water supply systems usually adopt fixed flow or pressure control modes, which are difficult to flexibly adapt to dynamically changing water demand. This static control mode easily leads to low efficiency of water supply system operation, insufficient or excessive water supply, and increased energy consumption and maintenance costs of the pipe network. In addition, traditional water supply systems lack the ability to monitor the operation status of the pipe network in real time, and are unable to promptly detect problems such as pipe network pressure imbalance, abnormal flow or equipment failure, which seriously affects the reliability and stability of water supply services.

[0004] In recent years, with the development of Internet of Things technology and intelligent control technology, the intelligent transformation of water supply systems has become a research hotspot. By real-time monitoring of the operating status of the water supply network and using data-driven models to achieve adaptive adjustment of water supply flow and pressure, the response speed and operating efficiency of the water supply system can be effectively improved. However, most of the current research focuses on local optimization or single parameter adjustment, and fails to fully integrate the comprehensive analysis of water supply network topology, fluid mechanics model and water demand characteristics, making it difficult to meet the dynamic regulation needs in complex water supply environments.

[0005] Therefore, there is an urgent need for a water supply control method and system based on adaptive regulation of fluid flow. Through in-depth analysis of the topological structure of the water supply network, combined with real-time monitoring data and intelligent control strategies, the water supply parameters can be dynamically optimized to achieve efficient and reliable water supply services, meet the ever-changing water demand, and reduce the energy consumption and maintenance costs of the water supply system. Summary of the invention

[0006] In order to solve at least one of the above technical problems, the present invention proposes a water supply control method and system based on adaptive regulation of fluid flow.

[0007] A first aspect of the present invention provides a water supply control method based on fluid flow adaptive regulation, comprising:

[0008] Acquire the water supply network layout information of the target water supply area, construct the water supply network topology structure of the target water supply area according to the water supply network layout information, analyze the water supply network topology structure, and determine the layout position of the water supply monitoring sensor in the target water supply area;

[0009] Constructing a water supply monitoring simulation model for the target water supply area according to the water supply network topology and the locations of water supply monitoring sensors, performing real-time water supply monitoring on the target water supply area according to the water supply monitoring simulation model, and identifying water demand characteristics of the target water supply area;

[0010] Constructing an adaptive flow regulation model for a target water supply area, analyzing the water demand characteristics according to the adaptive flow regulation model, determining water supply control parameters for the target water supply area, and constructing a water supply control strategy according to the water supply control parameters;

[0011] The water supply control strategy is used to control the water supply of the target water supply area, and the degree to which the water supply control strategy satisfies the water demand of the target water supply area is evaluated in real time. The water supply control strategy is optimized according to the degree to which the water demand is satisfied.

[0012] In this solution, the water supply network layout information of the target water supply area is obtained, the water supply network topology of the target water supply area is constructed according to the water supply network layout information, the water supply network topology is analyzed, and the layout position of the water supply monitoring sensor in the target water supply area is determined, specifically:

[0013] Acquire the water supply network layout information of the target water supply area, wherein the water supply network layout information includes pipe diameter, pipe length, valve and pump station location information, and water point location information;

[0014] Modeling the water supply network in the target water supply area according to the water supply network layout information to construct a water supply network topology structure in the target water supply area;

[0015] Perform water supply simulation analysis on the water supply network topology based on a fluid mechanics model, identify the range of changes in flow, pressure and hydraulics of different nodes and pipelines in the water supply network topology, and obtain fluid parameter change data of the target water supply area;

[0016] Determine the hydraulic balance of the water supply network according to the fluid parameter change data, and identify the hydraulic change imbalance position of the water supply network according to the hydraulic balance, wherein the hydraulic change imbalance position includes a pressure change greater than a preset threshold, a pipeline intersection, a minimum and maximum water supply pressure position, a minimum and maximum water supply flow position, and an area with intensive user demand;

[0017] The layout position of the water supply monitoring sensor in the target water supply area is determined according to the hydraulic change imbalance position.

[0018] In this solution, a water supply monitoring simulation model of the target water supply area is constructed according to the water supply network topology and the layout of the water supply monitoring sensors, and real-time water supply monitoring of the target water supply area is performed according to the water supply monitoring simulation model to identify the water demand characteristics of the target water supply area, specifically:

[0019] Deploy water supply monitoring sensors according to the deployment positions of the water supply monitoring sensors, link the data collected by the water supply monitoring sensors with the water supply network topology structure, and construct a water supply monitoring simulation model for the target water supply area;

[0020] Acquire water supply information at each water supply monitoring sensor layout location according to the water supply monitoring simulation model, wherein the water supply information includes water pressure and water flow;

[0021] Introduce an inverse distance weighted interpolation algorithm, calibrate the water supply information of each water supply monitoring sensor deployment location as a known point, obtain the water supply monitoring accuracy requirement data of the target water supply area, and determine the water supply information interpolation density of the water supply monitoring simulation model according to the water supply monitoring accuracy requirement data;

[0022] Determine the water supply information to-be-interpolated points of the water supply monitoring simulation model according to the interpolation density, calculate the pipeline length distance between each to-be-interpolated point and each known point, and determine the interpolation weight of each known point to the to-be-interpolated point according to the pipeline length distance;

[0023] Performing an interpolation operation on the water supply information of each to-be-interpolated point according to the inverse distance weighted interpolation algorithm and the interpolation weight to obtain the water supply information of each position of the water supply monitoring simulation model;

[0024] Visualize the water supply information at each location of the water supply monitoring simulation model to obtain a water supply information distribution map, update the water supply information distribution map in real time according to the data update frequency of each water supply monitoring sensor, and perform real-time water supply monitoring of the target water supply area according to the real-time updated water supply information distribution map;

[0025] Based on real-time water supply monitoring, a real-time water supply information distribution map is obtained to identify the water demand characteristics of the target water supply area.

[0026] In this solution, the real-time water supply information distribution map is obtained based on real-time water supply monitoring to identify the water demand characteristics of the target water supply area, specifically:

[0027] Acquire a real-time water supply information distribution map according to real-time water supply monitoring, and acquire real-time water supply information for each location in the real-time water supply information distribution map;

[0028] Performing a clustering operation on the real-time water supply information based on a K-means clustering algorithm to identify water supply characteristics of each water supply pipeline location in the target water supply area, wherein the water supply characteristics include a high-pressure and high-flow area and a low-pressure and low-flow area;

[0029] The water demand characteristics of the target water supply area are determined according to the water supply characteristics, and the water demand characteristics include water peak characteristics, water spatial distribution characteristics, and water pressure and water flow change characteristics.

[0030] In this solution, the adaptive flow regulation model of the target water supply area is constructed, the water demand characteristics are analyzed according to the adaptive flow regulation model, the water supply control parameters of the target water supply area are determined, and the water supply control strategy is constructed according to the water supply control parameters, specifically:

[0031] Obtaining water supply pressure and water supply flow demand information of the target water supply area, analyzing the water supply pressure and water supply flow demand information based on the node flow conservation and closed loop pressure balance law, and determining the balance relationship between the water supply pressure and water supply flow of the target water supply area;

[0032] Determine the flow-pressure coupling relationship of the target water supply area according to the balance relationship and the water supply pressure and water supply flow demand information, and construct an adaptive flow regulation model according to the flow-pressure coupling relationship;

[0033] Extracting the water demand of each water use point in the target water supply area in different time periods according to the water demand characteristics, importing the water demand into the adaptive flow regulation model, and calculating the water supply pressure and water supply flow loss value at each location in the water supply network when the water use point reaches the required water demand;

[0034] Compensation coefficients for water supply pressure and water supply flow are calculated according to the water supply pressure and water supply flow loss values, water supply control parameters for water supply equipment in a target water supply area are determined according to the compensation coefficients, and a water supply control strategy is constructed according to the water supply control parameters.

[0035] In this solution, the water supply control strategy is used to control the water supply of the target water supply area, and the degree to which the water supply control strategy satisfies the water demand of the target water supply area is evaluated in real time. The water supply control strategy is optimized according to the degree to which the water demand is satisfied. Specifically,

[0036] Control the water supply of the target water supply area according to the water supply control strategy, obtain the water outlet pressure and water outlet flow information of each water use point in the target water supply area in real time, and evaluate the degree to which the water supply control strategy satisfies the water demand of the target water supply area according to the water outlet pressure and water outlet flow information;

[0037] If the satisfaction degree is less than a preset value, a water supply information distribution map is constructed according to the water supply monitoring simulation model, the pressure balance state of the water supply network is evaluated according to the water supply information distribution map, and the fault state of the water supply network is identified according to the pressure balance state, wherein the fault state includes pipe blockage and damage, and if a fault state exists, the pressure imbalance position is determined according to the pressure balance state, the fault position is determined according to the pressure imbalance position, and maintenance operations are performed on the fault position;

[0038] If there is no fault state, a performance test is performed on the water supply monitoring sensor to obtain performance data and usage time data of the water supply monitoring sensor, and the performance degradation degree of the water supply monitoring sensor is determined according to the performance data, and the performance degradation degree and the usage time are comprehensively analyzed to determine the influence of the usage time of the water supply sensor on the performance degradation degree, and obtain the influence data;

[0039] Acquire usage time data of each water supply monitoring sensor in the target water supply area, and determine the performance degradation degree of each water supply monitoring sensor according to the impact data and the usage time data of each water supply monitoring sensor;

[0040] A performance degradation degree threshold is preset, and if the performance degradation degree is greater than the performance degradation degree threshold, a water supply monitoring sensor whose performance degradation degree is greater than the performance degradation degree threshold is replaced;

[0041] If the performance degradation degree is not greater than the performance degradation degree threshold, determining the monitoring value deviation of the water supply monitoring sensor according to the performance degradation degree, and performing a correction operation on the monitoring parameters of the water supply monitoring sensor according to the monitoring value deviation;

[0042] The water supply information is corrected according to the monitoring parameters of the water supply monitoring sensor after the correction operation, and the water supply control parameters are updated, and the water supply control strategy is optimized according to the updated water supply control parameters.

[0043] The second aspect of the present invention further provides a water supply control system based on fluid flow adaptive regulation, the system comprising: a memory, a processor, the memory comprising a water supply control method program based on fluid flow adaptive regulation, the water supply control method program based on fluid flow adaptive regulation when executed by the processor, implements the following steps:

[0044] Acquire the water supply network layout information of the target water supply area, construct the water supply network topology structure of the target water supply area according to the water supply network layout information, analyze the water supply network topology structure, and determine the layout position of the water supply monitoring sensor in the target water supply area;

[0045] Constructing a water supply monitoring simulation model for the target water supply area according to the water supply network topology and the locations of water supply monitoring sensors, performing real-time water supply monitoring on the target water supply area according to the water supply monitoring simulation model, and identifying water demand characteristics of the target water supply area;

[0046] Constructing an adaptive flow regulation model for a target water supply area, analyzing the water demand characteristics according to the adaptive flow regulation model, determining water supply control parameters for the target water supply area, and constructing a water supply control strategy according to the water supply control parameters;

[0047] The water supply control strategy is used to control the water supply of the target water supply area, and the degree to which the water supply control strategy satisfies the water demand of the target water supply area is evaluated in real time. The water supply control strategy is optimized according to the degree to which the water demand is satisfied.

[0048] The present invention discloses a water supply control method and system based on adaptive regulation of fluid flow, so as to improve the efficiency and reliability of the water supply system. The present invention includes: obtaining the pipe network layout information of the target water supply area, constructing the water supply network topology structure, and determining the layout position of the water supply monitoring sensor; based on the topology structure and sensor layout, constructing a water supply monitoring simulation model, real-time monitoring of the water supply status and identifying water demand characteristics; according to the water demand characteristics, constructing an adaptive flow regulation model, analyzing the demand and determining the water supply control parameters, and generating a water supply control strategy; realizing water supply control through the strategy, and evaluating the degree of satisfaction of the water demand in real time, and optimizing the water supply control strategy. The present invention can intelligently adapt to changes in water demand and improve the operating efficiency and service quality of the water supply system. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A flow chart showing a water supply control method based on fluid flow adaptive regulation of the present invention;

[0050] Figure 2 A flow chart showing the present invention for identifying water demand characteristics of a target water supply area;

[0051] Figure 3 A flow chart showing a water supply control strategy constructed in the present invention is shown;

[0052] Figure 4 A block diagram of a water supply control system based on adaptive regulation of fluid flow according to the present invention is shown. DETAILED DESCRIPTION

[0053] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0054] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0055] Figure 1 A flow chart of a water supply control method based on adaptive regulation of fluid flow rate according to the present invention is shown.

[0056] like Figure 1 As shown, the first aspect of the present invention provides a water supply control method based on fluid flow adaptive regulation, comprising:

[0057] S102, obtaining water supply network layout information of the target water supply area, constructing a water supply network topology structure of the target water supply area according to the water supply network layout information, analyzing the water supply network topology structure, and determining the layout position of the water supply monitoring sensor in the target water supply area;

[0058] S104, constructing a water supply monitoring simulation model for the target water supply area according to the water supply network topology and the locations of the water supply monitoring sensors, performing real-time water supply monitoring on the target water supply area according to the water supply monitoring simulation model, and identifying water demand characteristics of the target water supply area;

[0059] S106, constructing an adaptive flow regulation model for the target water supply area, analyzing the water demand characteristics according to the adaptive flow regulation model, determining water supply control parameters for the target water supply area, and constructing a water supply control strategy according to the water supply control parameters;

[0060] S108, controlling water supply to the target water supply area according to the water supply control strategy, evaluating in real time the degree to which the water supply control strategy satisfies water demand of the target water supply area, and optimizing the water supply control strategy according to the degree to which the water demand is satisfied.

[0061] It should be noted that by obtaining detailed water supply network layout information (including pipe diameter, pipe length, valve location, pump station location and water point distribution), an accurate water supply network topology is constructed to fully grasp the geometric and hydraulic characteristics of the water supply network. Based on the fluid mechanics model, the flow, pressure and other change characteristics of the network are analyzed, and the layout location of the monitoring sensor is reasonably selected to improve the representativeness and coverage of the monitoring data; by constructing a water supply monitoring simulation model, the dynamic combination of monitoring data and network topology is realized, and the information on flow and pressure distribution in the water supply network can be updated in real time. Based on this model, the demand change characteristics of the water use area can be identified with high precision, such as flow distribution or abnormal pressure points during peak hours; by establishing an adaptive flow regulation model, the balance relationship between pressure and flow is dynamically analyzed using water supply monitoring data, and a deep match between water supply demand changes and water supply control is achieved. Generate water supply control parameters based on model analysis results, such as adjusting the pressure setting of the water supply pump station or adjusting the valve opening, so as to optimize the operation status of the entire water supply network and ensure that the water supply demand at different times and regions is efficiently met; through the implementation of water supply control strategies, the water supply system is dynamically adjusted in real time to effectively balance the water supply pressure and flow, reduce water supply energy consumption, and improve system operation efficiency. By evaluating the implementation effect of the control strategy in real time, quickly discover situations where the water supply demand is not met (such as insufficient pressure or abnormal flow), and optimize the control parameters and strategies based on the evaluation results, so as to continuously improve the response speed and adaptability of the water supply system and ensure the quality of water supply services.

[0062] According to an embodiment of the present invention, the water supply network layout information of the target water supply area is obtained, the water supply network topology of the target water supply area is constructed according to the water supply network layout information, the water supply network topology is analyzed, and the layout position of the water supply monitoring sensor in the target water supply area is determined, specifically:

[0063] Acquire the water supply network layout information of the target water supply area, wherein the water supply network layout information includes pipe diameter, pipe length, valve and pump station location information, and water point location information;

[0064] Modeling the water supply network in the target water supply area according to the water supply network layout information to construct a water supply network topology structure in the target water supply area;

[0065] Perform water supply simulation analysis on the water supply network topology based on a fluid mechanics model, identify the range of changes in flow, pressure and hydraulics of different nodes and pipelines in the water supply network topology, and obtain fluid parameter change data of the target water supply area;

[0066] Determine the hydraulic balance of the water supply network according to the fluid parameter change data, and identify the hydraulic change imbalance position of the water supply network according to the hydraulic balance, wherein the hydraulic change imbalance position includes a pressure change greater than a preset threshold, a pipeline intersection, a minimum and maximum water supply pressure position, a minimum and maximum water supply flow position, and an area with intensive user demand;

[0067] The layout position of the water supply monitoring sensor in the target water supply area is determined according to the hydraulic change imbalance position.

[0068] It should be noted that the water supply network topology structure represents the connection relationship between each node (such as water pumps, valves, user access points) and the pipeline in the pipeline network. By collecting the layout information of the water supply pipeline network, including the length, diameter, material, and position of the pipeline, as well as the position and attributes of the nodes (such as water pumps, user access points, valves, etc.), the water supply pipeline network is abstracted into a topology graph. The nodes represent water supply equipment or access points, and the pipelines represent the connection relationship between the nodes. The attributes of the pipelines (such as pipe diameter, length, friction coefficient) are recorded, and the node matrix and edge matrix are constructed to describe the pressure, flow and other attributes of each node, as well as the pipeline's The starting node, length, diameter and other parameters are combined with the continuity equation (flow conservation) and Bernoulli equation to perform hydraulic simulation, calculate the flow and pressure distribution of each node, and finally verify and optimize the model through simulation tools (such as EPANET) to ensure that the topological structure accurately reflects the actual operation of the water supply network; the fluid mechanics model includes Bernoulli equation and flow conservation equation; by analyzing the hydraulic imbalance position in the water supply network (such as the area with large pressure change, the intersection of pipelines, the minimum or maximum water supply flow position, etc.), the key nodes and pipeline positions in the water supply network can be accurately identified. These locations are usually potential fault points or areas that need to be monitored. The deployment of monitoring sensors can more efficiently carry out real-time monitoring and early warning. By preferentially deploying sensors at the location of hydraulic imbalance, unnecessary sensor installation can be reduced, resources can be concentrated in areas with more significant flow and pressure changes, the value of monitoring data can be maximized, and monitoring efficiency can be improved.

[0069] According to an embodiment of the present invention, a water supply monitoring simulation model of a target water supply area is constructed according to the water supply network topology and the layout positions of water supply monitoring sensors, and real-time water supply monitoring of the target water supply area is performed according to the water supply monitoring simulation model to identify water demand characteristics of the target water supply area, specifically:

[0070] Deploy water supply monitoring sensors according to the deployment positions of the water supply monitoring sensors, link the data collected by the water supply monitoring sensors with the water supply network topology structure, and construct a water supply monitoring simulation model for the target water supply area;

[0071] Acquire water supply information at each water supply monitoring sensor layout location according to the water supply monitoring simulation model, wherein the water supply information includes water pressure and water flow;

[0072] Introduce an inverse distance weighted interpolation algorithm, calibrate the water supply information of each water supply monitoring sensor deployment location as a known point, obtain the water supply monitoring accuracy requirement data of the target water supply area, and determine the water supply information interpolation density of the water supply monitoring simulation model according to the water supply monitoring accuracy requirement data;

[0073] Determine the water supply information to-be-interpolated points of the water supply monitoring simulation model according to the interpolation density, calculate the pipeline length distance between each to-be-interpolated point and each known point, and determine the interpolation weight of each known point to the to-be-interpolated point according to the pipeline length distance;

[0074] Performing an interpolation operation on the water supply information of each to-be-interpolated point according to the inverse distance weighted interpolation algorithm and the interpolation weight to obtain the water supply information of each position of the water supply monitoring simulation model;

[0075] Visualize the water supply information at each location of the water supply monitoring simulation model to obtain a water supply information distribution map, update the water supply information distribution map in real time according to the data update frequency of each water supply monitoring sensor, and perform real-time water supply monitoring of the target water supply area according to the real-time updated water supply information distribution map;

[0076] Based on real-time water supply monitoring, a real-time water supply information distribution map is obtained to identify the water demand characteristics of the target water supply area.

[0077] It should be noted that since the sensors in the water supply network cannot cover all nodes and pipelines, interpolation can estimate the unmonitored locations through known monitoring sensor data (such as water pressure and water flow), fill the monitoring gaps, and obtain complete water supply information. Therefore, the data at different sensor locations are assigned different weights through the inverse distance weighted interpolation algorithm, and interpolation calculations are performed based on the distance relationship between sensors, thereby improving the accuracy of water supply information in the entire area. Interpolation can infer the water pressure and water flow of other undeployed sensor points based on the data at the actual sensor location. The interpolation method can generate a water supply information distribution map in real time and dynamically update the water supply information distribution map based on the data update frequency of each water supply monitoring sensor. This enables the water supply control system to continuously obtain the latest water supply information and adjust the water supply strategy based on real-time data to cope with changes in water demand. This real-time and dynamic nature improves the flexibility and response speed of water supply management. Through the real-time updated water supply information distribution map, the water demand characteristics of the target water supply area can be clearly identified, including water use peaks, valleys, water pressure changes, and flow distribution. The water supply monitoring sensors include flow sensors, pressure sensors, and flow rate sensors; the water supply information distribution map is a visual graph generated based on various real-time monitoring data in the water supply network (such as water pressure, water flow, etc.), which displays the water pressure distribution at various locations in the entire water supply network. Through color coding, areas with high water pressure may be represented by one color (areas with higher water pressure), and areas with low water pressure may be represented by another color, and the size of water flow in different areas is displayed. This can help identify areas with higher flow (which may be areas with high water demand) and areas with lower flow (which may be areas where pipes are blocked or flow is not smooth).

[0078] Figure 2 A flow chart of the present invention for identifying water demand characteristics of a target water supply area is shown.

[0079] According to an embodiment of the present invention, the real-time water supply information distribution map is obtained based on real-time water supply monitoring to identify the water demand characteristics of the target water supply area, specifically:

[0080] S202, obtaining a real-time water supply information distribution map according to real-time water supply monitoring, and obtaining real-time water supply information for each location in the real-time water supply information distribution map;

[0081] S204, performing a clustering operation on the real-time water supply information based on a K-means clustering algorithm to identify water supply characteristics of each water supply pipe location in the target water supply area, wherein the water supply characteristics include a high-pressure and high-flow area and a low-pressure and low-flow area;

[0082] S206, determining water demand characteristics of the target water supply area according to the water supply characteristics, wherein the water demand characteristics include water peak characteristics, water spatial distribution characteristics, and water pressure and water flow variation characteristics.

[0083] It should be noted that the water supply information distribution map obtained through real-time water supply monitoring, combined with the K-means clustering algorithm to cluster the water supply data, can effectively identify the water demand characteristics of the target water supply area from a large amount of complex water supply data. This process can clearly distinguish between high-pressure and high-flow areas and low-pressure and low-flow areas, and further derive the peak water use characteristics, water use spatial distribution characteristics, and water pressure and water flow change characteristics based on the characteristics of these areas. By identifying the water demand characteristics of different areas through cluster analysis, more accurate basic data can be provided for water supply control. In particular, it can distinguish between high-demand areas and low-demand areas in the water supply network. Through this differentiated identification, targeted water supply scheduling and optimization can be achieved, thereby providing sufficient water supply resources during high-demand periods, saving energy during low-demand periods, and reducing resource waste.

[0084] Figure 3 A flow chart of constructing a water supply control strategy according to the present invention is shown.

[0085] According to an embodiment of the present invention, the adaptive flow regulation model of the target water supply area is constructed, the water demand characteristics are analyzed according to the adaptive flow regulation model, the water supply control parameters of the target water supply area are determined, and the water supply control strategy is constructed according to the water supply control parameters, specifically:

[0086] S302, obtaining water supply pressure and water supply flow demand information of the target water supply area, analyzing the water supply pressure and water supply flow demand information based on the node flow conservation and closed loop pressure balance law, and determining the balance relationship between the water supply pressure and water supply flow of the target water supply area;

[0087] S304, determining a flow-pressure coupling relationship of a target water supply area according to the balance relationship and the water supply pressure and water supply flow demand information, and constructing an adaptive flow regulation model according to the flow-pressure coupling relationship;

[0088] S306, extracting the water demand of each water use point in the target water supply area in different time periods according to the water demand characteristics, importing the water demand into the adaptive flow regulation model, and calculating the water supply pressure and water supply flow loss value at each location in the water supply network when the water use point reaches the required water demand;

[0089] S308, calculating compensation coefficients of water supply pressure and water supply flow according to the water supply pressure and water supply flow loss values, determining water supply control parameters of water supply equipment in the target water supply area according to the compensation coefficients, and constructing a water supply control strategy according to the water supply control parameters.

[0090] It should be noted that in the water supply network, at any node (also called a junction), the sum of the flows entering the node is equal to the sum of the flows flowing out of the node. In other words, the water flow will not accumulate or disappear at the node, but will follow the principle of flow conservation. The application of the flow conservation principle can ensure the balance of flows at various nodes in the water supply system and avoid flow mismatch or abnormality, which helps to accurately calculate the water flow distribution and water supply capacity in the system. In the entire water supply network, the use of flow conservation analysis can effectively describe and predict the changes in water flow under different times and conditions. In a closed loop, the pressure changes on each pipe in the water supply system affect each other. According to the law of pressure balance, the total change in pressure in a closed water supply pipe loop should be zero. This means that the pressure loss (such as friction loss, local loss) and increase (such as pressure gain provided by the pump station) of the water flowing along the loop should offset each other. The application of the law of pressure balance can ensure that the pressure of the closed loop in the water supply system is reasonably distributed during operation. This helps to prevent the phenomenon of excessive or low pressure in certain areas of the water supply system. Through reasonable pressure balance, the water supply capacity of each area can be guaranteed to be stable, and problems such as pipeline damage or pump station overload caused by uneven pressure can be reduced. By determining the flow-pressure coupling relationship based on the water supply pressure and flow demand information, a flow regulation model that adapts to different demand changes can be established. This model can automatically adjust the flow and pressure in the water supply system according to the actual water demand, and realize accurate flow control and regulation. This adaptive regulation method can improve the responsiveness of the water supply network to fluctuating demand, so that the water supply system can be smoothly adjusted when facing sudden demand or seasonal water fluctuations, ensuring water supply stability and efficiency; by extracting the water demand of each water point in the target water supply area, and inputting these demands into the adaptive flow regulation model for calculation, the pressure and flow status of each node in the water supply system can be analyzed and predicted in real time. This enables the system to accurately calculate the corresponding water supply pressure and flow loss values ​​according to the different needs of each water point. By calculating the compensation coefficients of water supply pressure and flow loss, the various devices in the water supply network can be accurately adjusted according to these coefficients to compensate for the pressure or flow loss caused by demand changes. This compensation mechanism enables the water supply network to automatically adjust when facing demand fluctuations, avoiding water supply failure or facility damage caused by unbalanced water supply or pressure fluctuations, thereby improving the reliability and stability of the water supply system. The balance relationship refers to the relationship between water supply pressure and water supply flow, which reflects how the flow and pressure of each node in the water supply system are coordinated under different demands and conditions; the different time periods are each hour of the day; the water supply equipment includes pumps, valves, pressure regulating equipment, etc.

[0091] According to an embodiment of the present invention, the water supply control is performed on the target water supply area according to the water supply control strategy, the degree to which the water supply control strategy satisfies the water demand of the target water supply area is evaluated in real time, and the water supply control strategy is optimized according to the degree to which the water demand is satisfied, specifically:

[0092] Control the water supply of the target water supply area according to the water supply control strategy, obtain the water outlet pressure and water outlet flow information of each water use point in the target water supply area in real time, and evaluate the degree to which the water supply control strategy satisfies the water demand of the target water supply area according to the water outlet pressure and water outlet flow information;

[0093] If the satisfaction degree is less than a preset value, a water supply information distribution map is constructed according to the water supply monitoring simulation model, the pressure balance state of the water supply network is evaluated according to the water supply information distribution map, and the fault state of the water supply network is identified according to the pressure balance state, wherein the fault state includes pipe blockage and damage, and if a fault state exists, the pressure imbalance position is determined according to the pressure balance state, the fault position is determined according to the pressure imbalance position, and maintenance operations are performed on the fault position;

[0094] If there is no fault state, a performance test is performed on the water supply monitoring sensor to obtain performance data and usage time data of the water supply monitoring sensor, and the performance degradation degree of the water supply monitoring sensor is determined according to the performance data, and the performance degradation degree and the usage time are comprehensively analyzed to determine the influence of the usage time of the water supply sensor on the performance degradation degree, and obtain the influence data;

[0095] Acquire usage time data of each water supply monitoring sensor in the target water supply area, and determine the performance degradation degree of each water supply monitoring sensor according to the impact data and the usage time data of each water supply monitoring sensor;

[0096] A performance degradation degree threshold is preset, and if the performance degradation degree is greater than the performance degradation degree threshold, a water supply monitoring sensor whose performance degradation degree is greater than the performance degradation degree threshold is replaced;

[0097] If the performance degradation degree is not greater than the performance degradation degree threshold, determining the monitoring value deviation of the water supply monitoring sensor according to the performance degradation degree, and performing a correction operation on the monitoring parameters of the water supply monitoring sensor according to the monitoring value deviation;

[0098] The water supply information is corrected according to the monitoring parameters of the water supply monitoring sensor after the correction operation, and the water supply control parameters are updated, and the water supply control strategy is optimized according to the updated water supply control parameters.

[0099] It should be noted that after the implementation of the water supply control strategy, the water supply control strategy cannot meet the water supply demand of the target water supply area. The possible reason is that there may be blockage, damage and other faults in the water supply network. By real-time monitoring of the outlet pressure and flow information of each water point in the target water supply area, the satisfaction degree of the water supply control strategy for the water demand can be accurately evaluated. If the satisfaction degree is lower than the preset value, the water supply information distribution map is constructed through the water supply monitoring simulation model to evaluate the pressure balance state of the water supply network. According to the pressure balance state, the fault state of the water supply network is identified. In the water supply system, the water flow in the pipeline is usually subject to certain rules. The changes in pressure and flow at different positions are stable. If the pipeline is blocked or damaged, it will cause abnormal fluctuations in the flow and pressure in the water supply network. The abnormal fluctuation position is identified as the fault position. The pipeline blockage will lead to water flow restriction, flow reduction, and even "dead zone" or water flow stop in the severely blocked part. Water flow leakage will occur at the damaged part of the pipeline, resulting in a sudden drop in pressure. Water supply monitoring sensors, such as flow meters and pressure sensors, may experience performance degradation or failure over time. Sensors with degraded performance may lead to inaccurate collected data, thus affecting the effectiveness of water supply monitoring, regulation and control strategies. Therefore, when there is no fault state in the target water supply area, it can be considered that the water supply monitoring sensor has performance degradation. By evaluating the performance of the water supply monitoring sensor, the degree of performance degradation over time can be determined. When the degree of degradation reaches the performance degradation threshold that requires replacement, the sensor replacement operation is performed. When the performance degradation threshold is not reached, the monitoring value deviation can be corrected by the degree of degradation without immediate replacement. This can extend the service life of the sensor, reduce the frequency of unnecessary replacement, thereby reducing operating costs, and optimize resource allocation, ultimately achieving updated optimization of water supply control, more accurate adjustment of water supply control parameters, and meeting the water supply needs of the target water supply area to the greatest extent.

[0100] Figure 4 A block diagram of a water supply control system based on adaptive regulation of fluid flow according to the present invention is shown.

[0101] The second aspect of the present invention further provides a water supply control system 4 based on fluid flow adaptive regulation, the system comprising: a memory 41, a processor 42, the memory comprising a water supply control method program based on fluid flow adaptive regulation, the water supply control method program based on fluid flow adaptive regulation when executed by the processor, implements the following steps:

[0102] Acquire the water supply network layout information of the target water supply area, construct the water supply network topology structure of the target water supply area according to the water supply network layout information, analyze the water supply network topology structure, and determine the layout position of the water supply monitoring sensor in the target water supply area;

[0103] Constructing a water supply monitoring simulation model for the target water supply area according to the water supply network topology and the locations of water supply monitoring sensors, performing real-time water supply monitoring on the target water supply area according to the water supply monitoring simulation model, and identifying water demand characteristics of the target water supply area;

[0104] Constructing an adaptive flow regulation model for a target water supply area, analyzing the water demand characteristics according to the adaptive flow regulation model, determining water supply control parameters for the target water supply area, and constructing a water supply control strategy according to the water supply control parameters;

[0105] The water supply control strategy is used to control the water supply of the target water supply area, and the degree to which the water supply control strategy satisfies the water demand of the target water supply area is evaluated in real time. The water supply control strategy is optimized according to the degree to which the water demand is satisfied.

[0106] The present invention discloses a water supply control method and system based on adaptive regulation of fluid flow, so as to improve the efficiency and reliability of the water supply system. The present invention includes: obtaining the pipe network layout information of the target water supply area, constructing the water supply network topology structure, and determining the layout position of the water supply monitoring sensor; based on the topology structure and sensor layout, constructing a water supply monitoring simulation model, real-time monitoring of the water supply status and identifying water demand characteristics; according to the water demand characteristics, constructing an adaptive flow regulation model, analyzing the demand and determining the water supply control parameters, and generating a water supply control strategy; realizing water supply control through the strategy, and evaluating the degree of satisfaction of the water demand in real time, and optimizing the water supply control strategy. The present invention can intelligently adapt to changes in water demand and improve the operating efficiency and service quality of the water supply system.

[0107] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0108] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0109] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0110] A person of ordinary skill in the art can understand that: all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiments; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks or optical disks, and other media that can store program codes.

[0111] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

[0112] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A water supply control method based on fluid flow adaptive regulation, characterized in that: The following steps are involved: Acquire the water supply network layout information of the target water supply area, construct the water supply network topology structure of the target water supply area according to the water supply network layout information, analyze the water supply network topology structure, and determine the layout position of the water supply monitoring sensor in the target water supply area; Constructing a water supply monitoring simulation model for the target water supply area according to the water supply network topology and the locations of water supply monitoring sensors, performing real-time water supply monitoring on the target water supply area according to the water supply monitoring simulation model, and identifying water demand characteristics of the target water supply area; Constructing an adaptive flow regulation model for a target water supply area, analyzing the water demand characteristics according to the adaptive flow regulation model, determining water supply control parameters for the target water supply area, and constructing a water supply control strategy according to the water supply control parameters; The water supply control strategy is used to control the water supply of the target water supply area, and the degree to which the water supply control strategy satisfies the water demand of the target water supply area is evaluated in real time. The water supply control strategy is optimized according to the degree to which the water demand is satisfied.

2. A water supply control method based on fluid flow adaptive regulation according to claim 1, characterized in that: The step of obtaining the water supply network layout information of the target water supply area, constructing the water supply network topology structure of the target water supply area according to the water supply network layout information, analyzing the water supply network topology structure, and determining the layout position of the water supply monitoring sensor in the target water supply area is specifically as follows: Obtaining water supply network layout information of the target water supply area, wherein the water supply network layout information includes pipe diameter, pipe length, valve and pump station location information, and water point location information; Modeling the water supply network in the target water supply area according to the water supply network layout information to construct a water supply network topology structure in the target water supply area; Perform water supply simulation analysis on the water supply network topology based on a fluid mechanics model, identify the range of changes in flow, pressure and hydraulics of different nodes and pipelines in the water supply network topology, and obtain fluid parameter change data of the target water supply area; Determine the hydraulic balance of the water supply network according to the fluid parameter change data, and identify the hydraulic change imbalance position of the water supply network according to the hydraulic balance, wherein the hydraulic change imbalance position includes a pressure change greater than a preset threshold, a pipeline intersection, a minimum and maximum water supply pressure position, a minimum and maximum water supply flow position, and an area with intensive user demand; The layout position of the water supply monitoring sensor in the target water supply area is determined according to the hydraulic change imbalance position.

3. A water supply control method based on fluid flow adaptive regulation according to claim 1, characterized in that: The water supply monitoring simulation model of the target water supply area is constructed according to the water supply network topology and the layout positions of the water supply monitoring sensors, and the real-time water supply monitoring of the target water supply area is performed according to the water supply monitoring simulation model to identify the water demand characteristics of the target water supply area. Specifically, Deploy water supply monitoring sensors according to the deployment positions of the water supply monitoring sensors, link the data collected by the water supply monitoring sensors with the water supply network topology structure, and construct a water supply monitoring simulation model for the target water supply area; Acquire water supply information at each water supply monitoring sensor layout location according to the water supply monitoring simulation model, wherein the water supply information includes water pressure and water flow; Introduce an inverse distance weighted interpolation algorithm, calibrate the water supply information of each water supply monitoring sensor deployment location as a known point, obtain the water supply monitoring accuracy requirement data of the target water supply area, and determine the water supply information interpolation density of the water supply monitoring simulation model according to the water supply monitoring accuracy requirement data; Determine the water supply information to-be-interpolated points of the water supply monitoring simulation model according to the interpolation density, calculate the pipeline length distance between each to-be-interpolated point and each known point, and determine the interpolation weight of each known point to the to-be-interpolated point according to the pipeline length distance; Performing an interpolation operation on the water supply information of each to-be-interpolated point according to the inverse distance weighted interpolation algorithm and the interpolation weight to obtain the water supply information of each position of the water supply monitoring simulation model; Visualize the water supply information at each location of the water supply monitoring simulation model to obtain a water supply information distribution map, update the water supply information distribution map in real time according to the data update frequency of each water supply monitoring sensor, and perform real-time water supply monitoring of the target water supply area according to the real-time updated water supply information distribution map; Based on real-time water supply monitoring, a real-time water supply information distribution map is obtained to identify the water demand characteristics of the target water supply area.

4. A water supply control method based on fluid flow adaptive regulation according to claim 3, characterized in that: The method of obtaining a real-time water supply information distribution map based on real-time water supply monitoring to identify the water demand characteristics of the target water supply area is specifically as follows: Acquire a real-time water supply information distribution map according to real-time water supply monitoring, and acquire real-time water supply information for each location in the real-time water supply information distribution map; Performing a clustering operation on the real-time water supply information based on a K-means clustering algorithm to identify water supply characteristics of each water supply pipeline location in the target water supply area, wherein the water supply characteristics include a high-pressure and high-flow area and a low-pressure and low-flow area; The water demand characteristics of the target water supply area are determined according to the water supply characteristics, and the water demand characteristics include water peak characteristics, water spatial distribution characteristics, and water pressure and water flow change characteristics.

5. The water supply control method based on fluid flow adaptive regulation according to claim 1, characterized in that: The adaptive flow regulation model of the target water supply area is constructed, the water demand characteristics are analyzed according to the adaptive flow regulation model, the water supply control parameters of the target water supply area are determined, and the water supply control strategy is constructed according to the water supply control parameters, specifically: Obtaining water supply pressure and water supply flow demand information of the target water supply area, analyzing the water supply pressure and water supply flow demand information based on the node flow conservation and closed loop pressure balance law, and determining the balance relationship between the water supply pressure and water supply flow of the target water supply area; Determine the flow-pressure coupling relationship of the target water supply area according to the balance relationship and the water supply pressure and water supply flow demand information, and construct an adaptive flow regulation model according to the flow-pressure coupling relationship; Extracting the water demand of each water use point in the target water supply area in different time periods according to the water demand characteristics, importing the water demand into the adaptive flow regulation model, and calculating the water supply pressure and water supply flow loss value at each location in the water supply network when the water use point reaches the required water demand; Compensation coefficients for water supply pressure and water supply flow are calculated according to the water supply pressure and water supply flow loss values, water supply control parameters for water supply equipment in a target water supply area are determined according to the compensation coefficients, and a water supply control strategy is constructed according to the water supply control parameters.

6. A water supply control method based on fluid flow adaptive regulation according to claim 1, characterized in that: The water supply control is performed on the target water supply area according to the water supply control strategy, the degree to which the water supply control strategy satisfies the water demand of the target water supply area is evaluated in real time, and the water supply control strategy is optimized according to the degree to which the water demand is satisfied, specifically: Control the water supply of the target water supply area according to the water supply control strategy, obtain the water outlet pressure and water outlet flow information of each water use point in the target water supply area in real time, and evaluate the degree to which the water supply control strategy satisfies the water demand of the target water supply area according to the water outlet pressure and water outlet flow information; If the satisfaction degree is less than a preset value, a water supply information distribution map is constructed according to the water supply monitoring simulation model, the pressure balance state of the water supply network is evaluated according to the water supply information distribution map, and the fault state of the water supply network is identified according to the pressure balance state, wherein the fault state includes pipe blockage and damage, and if a fault state exists, the pressure imbalance position is determined according to the pressure balance state, the fault position is determined according to the pressure imbalance position, and maintenance operations are performed on the fault position; If there is no fault state, a performance test is performed on the water supply monitoring sensor to obtain performance data and usage time data of the water supply monitoring sensor, and the performance degradation degree of the water supply monitoring sensor is determined according to the performance data, and the performance degradation degree and the usage time are comprehensively analyzed to determine the influence of the usage time of the water supply sensor on the performance degradation degree, and obtain the influence data; Acquire usage time data of each water supply monitoring sensor in the target water supply area, and determine the performance degradation degree of each water supply monitoring sensor according to the impact data and the usage time data of each water supply monitoring sensor; A performance degradation degree threshold is preset, and if the performance degradation degree is greater than the performance degradation degree threshold, a water supply monitoring sensor whose performance degradation degree is greater than the performance degradation degree threshold is replaced; If the performance degradation degree is not greater than the performance degradation degree threshold, determining the monitoring value deviation of the water supply monitoring sensor according to the performance degradation degree, and performing a correction operation on the monitoring parameters of the water supply monitoring sensor according to the monitoring value deviation; The water supply information is corrected according to the monitoring parameters of the water supply monitoring sensor after the correction operation, and the water supply control parameters are updated, and the water supply control strategy is optimized according to the updated water supply control parameters.

7. A water supply control system based on fluid flow adaptive regulation, characterized in that: The water supply control system based on fluid flow adaptive regulation includes a storage device and a processor. The storage device includes a water supply control method program based on fluid flow adaptive regulation. When the water supply control method program based on fluid flow adaptive regulation is executed by the processor, the following steps are implemented: Acquire the water supply network layout information of the target water supply area, construct the water supply network topology structure of the target water supply area according to the water supply network layout information, analyze the water supply network topology structure, and determine the layout position of the water supply monitoring sensor in the target water supply area; Constructing a water supply monitoring simulation model for the target water supply area according to the water supply network topology and the locations of water supply monitoring sensors, performing real-time water supply monitoring on the target water supply area according to the water supply monitoring simulation model, and identifying water demand characteristics of the target water supply area; Constructing an adaptive flow regulation model for a target water supply area, analyzing the water demand characteristics according to the adaptive flow regulation model, determining water supply control parameters for the target water supply area, and constructing a water supply control strategy according to the water supply control parameters; The water supply control strategy is used to control the water supply of the target water supply area, and the degree to which the water supply control strategy satisfies the water demand of the target water supply area is evaluated in real time. The water supply control strategy is optimized according to the degree to which the water demand is satisfied.

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