Water supply control method and system based on fluid flow adaptive regulation

Abstract

The present invention discloses a water supply control method and system based on adaptive regulation of fluid flow, in order 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, and determining the layout location of the water supply monitoring sensor; based on the topology and sensor layout, constructing a water supply monitoring simulation model to monitor the water supply status in real time and identify water demand characteristics; based on the water demand characteristics, constructing an adaptive flow regulation model to analyze the demand and determine the water supply control parameters, and generating a water supply control strategy; implementing water supply control through the strategy, and evaluating its satisfaction degree to 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.

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] Water supply systems are a vital component of urban infrastructure, and their operational efficiency and service quality directly impact residents' quality of life and urban economic development. With the acceleration of urbanization and the increasing complexity of water demand, the design and operation of traditional water supply systems face numerous challenges.

[0003] Existing water supply systems typically utilize fixed flow or pressure control modes, making them inflexible and unable to adapt to dynamically changing water demand. This static control model can easily lead to inefficient water supply systems, resulting in water shortages or oversupply, increasing network energy consumption and maintenance costs. Furthermore, traditional water supply systems lack the ability to monitor network operation in real time, making it impossible to promptly detect issues such as pressure imbalances, flow anomalies, or equipment failures, severely impacting the reliability and stability of water supply services.

[0004] In recent years, with the development of the Internet of Things (IoT) and intelligent control technologies, the intelligent transformation of water supply systems has become a research hotspot. By monitoring the operational status of water supply networks in real time and utilizing data-driven models to adaptively adjust water flow and pressure, the response speed and operational efficiency of water supply systems can be effectively improved. However, current research has largely focused on local optimization or single parameter adjustment, failing to fully integrate comprehensive analysis of water supply network topology, fluid dynamics models, and water demand characteristics, making it difficult to meet the dynamic control requirements of 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 water supply network topology, combined with real-time monitoring data and intelligent control strategies, 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 adaptive regulation of fluid flow, comprising:

[0008] Acquire water supply network layout information of the target water supply area, construct a water supply network topology structure of the target water supply area based on the water supply network layout information, analyze the water supply network topology structure, and determine the layout location of water supply monitoring sensors in the target water supply area;

[0009] Constructing a water supply monitoring simulation model for the target water supply area based on 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 based on 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 based on 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] Obtaining water supply network layout information for the target water supply area, including pipe diameter, pipe length, valve and pump station location information, and water point location information;

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

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

[0016] Determine the hydraulic balance of the water supply network based on the fluid parameter change data, and identify the hydraulic imbalance location of the water supply network based on the hydraulic balance, wherein the hydraulic imbalance location includes a pressure change greater than a preset threshold, a pipe intersection, a minimum and maximum water supply pressure location, a minimum and maximum water supply flow location, 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 based on the water supply network topology and the layout of the water supply monitoring sensors. Real-time water supply monitoring of the target water supply area is performed based on 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 their deployment locations, link data collected by the water supply monitoring sensors with the water supply network topology, 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] An inverse distance weighted interpolation algorithm is introduced to calibrate the water supply information at the location of each water supply monitoring sensor as a known point, obtain water supply monitoring accuracy requirement data for the target water supply area, and determine the water supply information interpolation density of the water supply monitoring simulation model based on 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] Visualizing the water supply information at each location of the water supply monitoring simulation model to obtain a water supply information distribution map, updating the water supply information distribution map in real time according to the data update frequency of each water supply monitoring sensor, and performing real-time water supply monitoring of the target water supply area based on 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 obtained based on real-time water supply monitoring identifies the water demand characteristics of the target water supply area, specifically:

[0027] Acquire a real-time water supply information distribution map based on real-time water supply monitoring, and obtain 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 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;

[0029] The water demand characteristics of the target water supply area are determined based on the water supply characteristics, and the water demand characteristics include water peak characteristics, water spatial distribution characteristics, and water pressure and water flow variation 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 for 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 in 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 point in the target water supply area in different time periods based on 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 point reaches the required water demand;

[0034] The compensation coefficients of water supply pressure and water supply flow are calculated according to the water supply pressure and water supply flow loss values, the water supply control parameters of the water supply equipment in the 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] Controlling water supply to the target water supply area according to the water supply control strategy, obtaining the water outlet pressure and water outlet flow information of each water use point in the target water supply area in real time, and evaluating the degree to which the water supply control strategy satisfies the water demand of the target water supply area based on the water outlet pressure and water outlet flow information;

[0037] If the satisfaction level is less than a preset value, construct a water supply information distribution map based on the water supply monitoring simulation model, evaluate the pressure balance state of the water supply network based on the water supply information distribution map, identify a fault state of the water supply network based on the pressure balance state, the fault state including pipe blockage and damage, and if a fault state exists, determine a pressure imbalance location based on the pressure balance state, determine a fault location based on the pressure imbalance location, and perform maintenance operations on the fault location;

[0038] If no fault condition exists, 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, a degree of performance degradation of the water supply monitoring sensor is determined based on the performance data, and a comprehensive analysis is performed on the degree of performance degradation and the usage time to determine the impact of the usage time of the water supply sensor on the degree of performance degradation, thereby obtaining impact 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 based on the impact data and the usage time data of each water supply monitoring sensor;

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

[0041] If the performance degradation degree is not greater than the performance degradation degree threshold, determining a 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. The water supply control strategy is optimized according to the updated water supply control parameters.

[0043] A second aspect of the present invention further provides a water supply control system based on adaptive fluid flow regulation, the system comprising: a memory and a processor, wherein the memory includes a water supply control method program based on adaptive fluid flow regulation, and when the water supply control method program based on adaptive fluid flow regulation is executed by the processor, the following steps are implemented:

[0044] Acquire water supply network layout information of the target water supply area, construct a water supply network topology structure of the target water supply area based on the water supply network layout information, analyze the water supply network topology structure, and determine the layout location of water supply monitoring sensors in the target water supply area;

[0045] Constructing a water supply monitoring simulation model for the target water supply area based on 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 based on 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, in order 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, and determining the layout location of the water supply monitoring sensor; based on the topology and sensor layout, constructing a water supply monitoring simulation model to monitor the water supply status in real time and identify water demand characteristics; based on the water demand characteristics, constructing an adaptive flow regulation model to analyze the demand and determine the water supply control parameters, and generating a water supply control strategy; implementing water supply control through the strategy, and evaluating its satisfaction degree to 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 adaptive regulation of fluid flow according to the present invention is shown;

[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 objects, 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, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[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 scope of protection 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 based on the water supply network layout information, analyzing the water supply network topology structure, and determining the layout positions of water supply monitoring sensors in the target water supply area;

[0058] S104, constructing a water supply monitoring simulation model for the target water supply area based on 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 based on 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 information on the layout of the water supply network (including pipe diameter, pipe length, valve location, pump station location, and water point distribution), an accurate water supply network topology is constructed, and the geometric and hydraulic characteristics of the water supply network are fully understood. Based on the fluid mechanics model, the flow, pressure and other changing characteristics of the network are analyzed, and the layout locations of monitoring sensors are reasonably selected to improve the representativeness and coverage of the monitoring data; by constructing a water supply monitoring simulation model, a dynamic combination of monitoring data and network topology is achieved, and 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 water use areas, such as flow distribution or abnormal pressure points during peak hours, can be identified with high precision; by establishing an adaptive flow regulation model and using water supply monitoring data to dynamically analyze the balance between pressure and flow, a deep match between water supply demand changes and water supply control is achieved. Based on the model analysis results, water supply control parameters are generated, such as adjusting the pressure setting of the water supply pump station or adjusting the valve opening, thereby optimizing the operating status of the entire water supply network and ensuring that water supply demands at different times and regions are efficiently met. By implementing water supply control strategies, the water supply system is dynamically adjusted in real time to effectively balance water supply pressure and flow, reduce water supply energy consumption, and improve system operating efficiency. By evaluating the implementation effect of the control strategy in real time, it is possible to quickly identify situations where water supply demand is not being met (such as insufficient pressure or abnormal flow). Based on the evaluation results, the control parameters and strategies are optimized, thereby continuously improving the response speed and adaptability of the water supply system and ensuring the quality of water supply service.

[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 based on 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] Obtaining water supply network layout information for the target water supply area, including pipe diameter, pipe length, valve and pump station location information, and water point location information;

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

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

[0066] Determine the hydraulic balance of the water supply network based on the fluid parameter change data, and identify the hydraulic imbalance location of the water supply network based on the hydraulic balance, wherein the hydraulic imbalance location includes a pressure change greater than a preset threshold, a pipe intersection, a minimum and maximum water supply pressure location, a minimum and maximum water supply flow location, 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 location of the pipeline, as well as the location 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 Parameters such as the starting node, length, and diameter are combined with the continuity equation (flow conservation) and Bernoulli equation to perform hydraulic simulations, calculate the flow and pressure distribution at each node, and ultimately verify and optimize the model using simulation tools (such as EPANET) to ensure that the topology accurately reflects the actual operation of the water supply network. The fluid dynamics model includes the Bernoulli equation and the flow conservation equation. By analyzing the locations of hydraulic imbalance in the water supply network (such as areas with large pressure changes, pipe intersections, and locations with minimum or maximum water flow, etc.), key nodes and pipeline locations in the water supply network can be accurately identified. These locations are often potential fault points or areas that require key monitoring. The deployment of monitoring sensors can more efficiently perform real-time monitoring and early warning. By prioritizing the deployment of sensors at locations 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, the water supply monitoring simulation model of the target water supply area is constructed based on 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 based on the water supply monitoring simulation model to identify the water demand characteristics of the target water supply area, specifically:

[0070] Deploy water supply monitoring sensors according to their deployment locations, link data collected by the water supply monitoring sensors with the water supply network topology, 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] An inverse distance weighted interpolation algorithm is introduced to calibrate the water supply information at the location of each water supply monitoring sensor as a known point, obtain water supply monitoring accuracy requirement data for the target water supply area, and determine the water supply information interpolation density of the water supply monitoring simulation model based on 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] Visualizing the water supply information at each location of the water supply monitoring simulation model to obtain a water supply information distribution map, updating the water supply information distribution map in real time according to the data update frequency of each water supply monitoring sensor, and performing real-time water supply monitoring of the target water supply area based on 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 sensors in a water supply network cannot cover all nodes and pipelines, interpolation can use known monitoring sensor data (such as water pressure and flow) to estimate unmonitored locations, filling in monitoring gaps and obtaining complete water supply information. Therefore, an inverse distance weighted interpolation algorithm assigns different weights to data from different sensor locations and performs interpolation based on the distance relationship between sensors, thereby improving the accuracy of water supply information across the entire area. Interpolation can also infer water pressure and flow at other unsensored locations based on data from actual sensor locations. This interpolation method generates a real-time water supply information distribution map, which is dynamically updated 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 water supply strategies based on real-time data to address changes in water demand. This real-time and dynamic nature enhances the flexibility and responsiveness of water supply management. The real-time updated water supply information distribution map clearly identifies water demand characteristics for the target water supply area, including peaks and valleys, water pressure fluctuations, 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 graphic generated based on various real-time monitoring data in the water supply network (such as water pressure, water flow, etc.), showing 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 the 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 with blocked pipes or poor flow).

[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 obtained based on real-time water supply monitoring identifies the water demand characteristics of the target water supply area, specifically:

[0080] S202, obtaining a real-time water supply information distribution map based on 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: Determine water demand characteristics of the target water supply area based on the water supply characteristics, where 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 by using the water supply information distribution map obtained through real-time water supply monitoring and clustering the water supply data using the K-means clustering algorithm, the water demand characteristics of the target water supply area can be effectively identified from a large amount of complex water supply data. This process can clearly distinguish between high-pressure, high-flow areas and low-pressure, low-flow areas, and based on the characteristics of these areas, further derive the peak water consumption characteristics, spatial water consumption distribution characteristics, and water pressure and water flow variation characteristics. 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 and saving energy and reducing resource waste during low-demand periods.

[0084] Figure 3 A flow chart of the water supply control strategy constructed in the present invention is shown.

[0085] According to an embodiment of the present invention, the adaptive flow regulation model for 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 for 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: Obtain water supply pressure and water supply flow demand information for a target water supply area, analyze the water supply pressure and water supply flow demand information based on the law of conservation of node flow and closed-loop pressure balance, and determine a balance relationship between the water supply pressure and water supply flow in 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 point in the target water supply area in different time periods based on 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 point reaches the required water demand;

[0089] S308, calculating compensation coefficients for water supply pressure and water supply flow according to the water supply pressure and water supply flow loss values, determining water supply control parameters for 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 a water supply network, at any node (also called a junction), the total flow entering the node is equal to the total flow leaving the node. In other words, water flow does not accumulate or disappear at a node, but rather follows the principle of flow conservation. Applying the principle of flow conservation ensures balanced flow across all nodes in the water supply system, avoiding flow mismatches or anomalies. This helps accurately calculate the system's flow distribution and water supply capacity. Applying flow conservation analysis throughout the entire water supply network effectively describes and predicts changes in water flow over time and under different conditions. In a closed loop, pressure changes in each pipe in the water supply system affect each other. According to the law of pressure balance, the total pressure change in a closed water supply pipe loop should be zero. This means that pressure losses (such as friction losses and localized losses) and pressure gains (such as pressure gain provided by pumping stations) within the loop must cancel each other out. Applying the law of pressure balance ensures that pressure in closed loops within the water supply system is properly distributed during operation. This helps prevent excessively high or low pressures in certain areas of the water supply system. Proper pressure balancing ensures stable water supply capacity across regions and reduces problems such as pipeline damage or pump station overload caused by uneven pressure. By determining the flow-pressure coupling relationship based on water supply pressure and flow demand information, a flow regulation model adaptable to varying demand can be established. This model automatically adjusts flow and pressure within the water supply system based on actual water demand, achieving precise flow control and regulation. This adaptive regulation method improves the water supply network's responsiveness to fluctuating demand, enabling smooth adjustments to sudden or seasonal demand fluctuations, ensuring stable and efficient water supply. By extracting the water demand for each point within the target water supply area and inputting this demand into the adaptive flow regulation model, the pressure and flow conditions at 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 for each point's varying demand. By calculating compensation coefficients for water supply pressure and flow loss, these coefficients can be used to precisely adjust various devices in the water supply network to compensate for pressure or flow losses caused by demand fluctuations. This compensation mechanism enables the water supply network to automatically adjust to demand fluctuations, preventing water supply failures or facility damage caused by uneven 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 flow rate, reflecting how the flow and pressure at each node in the water supply system are coordinated under different demands and conditions. The different time periods refer to each hour of the day. The water supply equipment includes pumps, valves, pressure regulators, 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 as follows:

[0092] Controlling water supply to the target water supply area according to the water supply control strategy, obtaining the water outlet pressure and water outlet flow information of each water use point in the target water supply area in real time, and evaluating the degree to which the water supply control strategy satisfies the water demand of the target water supply area based on the water outlet pressure and water outlet flow information;

[0093] If the satisfaction level is less than a preset value, construct a water supply information distribution map based on the water supply monitoring simulation model, evaluate the pressure balance state of the water supply network based on the water supply information distribution map, identify a fault state of the water supply network based on the pressure balance state, the fault state including pipe blockage and damage, and if a fault state exists, determine a pressure imbalance location based on the pressure balance state, determine a fault location based on the pressure imbalance location, and perform maintenance operations on the fault location;

[0094] If no fault condition exists, 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, a degree of performance degradation of the water supply monitoring sensor is determined based on the performance data, and a comprehensive analysis is performed on the degree of performance degradation and the usage time to determine the impact of the usage time of the water supply sensor on the degree of performance degradation, thereby obtaining impact 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 based on the impact data and the usage time data of each water supply monitoring sensor;

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

[0097] If the performance degradation degree is not greater than the performance degradation degree threshold, determining a 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. The water supply control strategy is optimized according to the updated water supply control parameters.

[0099] It should be noted that after the water supply control strategy is implemented, it may not meet the water supply demand of the target water supply area. This may be caused by failures such as blockage or damage in the water supply network. By real-time monitoring of the outlet pressure and flow information of each water consumption point in the target water supply area, the degree to which the water supply control strategy meets the water demand can be accurately assessed. If the satisfaction level is lower than the preset value, a water supply information distribution map is constructed through the water supply monitoring simulation model to assess the pressure balance state of the water supply network. Based on the pressure balance state, the fault state of the water supply network is identified. In a water supply system, the flow in the pipeline is usually subject to certain constraints, and the pressure and flow changes at different locations are stable. If a pipeline is blocked or damaged, it will cause abnormal fluctuations in the flow and pressure in the water supply network. The location of the abnormal fluctuation is identified as the fault location. Pipe blockage will lead to water flow restriction and reduction, or even "dead zone" or water flow cessation in the severely blocked part. Water leakage will occur at the damaged pipe, resulting in a sudden drop in pressure. Water supply monitoring sensors, such as flow meters and pressure sensors, may degrade or fail over time. Degraded sensor performance can lead to inaccurate data collection, thus affecting the effectiveness of water supply monitoring, regulation, and control strategies. Therefore, when no fault conditions exist in the target water supply area, the water supply monitoring sensor can be considered to have degraded performance. By evaluating the performance of the water supply monitoring sensor, the degree of performance degradation over time can be determined. When the degradation reaches the performance degradation threshold that requires replacement, the sensor is replaced. If the performance degradation threshold is not reached, the degradation level can be used to correct the monitoring value deviation without the need for immediate replacement. This can extend the service life of the sensor, reduce the frequency of unnecessary replacements, thereby reducing operating costs and optimizing resource allocation. Ultimately, it is possible to update and optimize water supply control, more accurately adjust water supply control parameters, and maximize the water supply needs of the target water supply area.

[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] A 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 and a processor 42, wherein the memory includes a water supply control method program based on fluid flow adaptive regulation, and when the water supply control method program based on fluid flow adaptive regulation is executed by the processor, the following steps are implemented:

[0102] Acquire water supply network layout information of the target water supply area, construct a water supply network topology structure of the target water supply area based on the water supply network layout information, analyze the water supply network topology structure, and determine the layout location of water supply monitoring sensors in the target water supply area;

[0103] Constructing a water supply monitoring simulation model for the target water supply area based on 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 based on 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, in order 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, and determining the layout location of the water supply monitoring sensor; based on the topology and sensor layout, constructing a water supply monitoring simulation model to monitor the water supply status in real time and identify water demand characteristics; based on the water demand characteristics, constructing an adaptive flow regulation model to analyze the demand and determine the water supply control parameters, and generating a water supply control strategy; implementing water supply control through the strategy, and evaluating its satisfaction degree to 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 this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, 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 across multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this 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] Those skilled in the art will appreciate that all or part of the steps of the above-mentioned method embodiments may be implemented by hardware associated with program instructions, and the aforementioned program may be stored in a computer-readable storage medium. When the program is executed, the program executes the steps of the above-mentioned method embodiments. The aforementioned storage medium includes various media that can store program codes, such as mobile storage devices, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical disks.

[0111] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software functional 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, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or 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 description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A water supply control method based on adaptive regulation of fluid flow, characterized in that: The following steps are involved: Acquire water supply network layout information of the target water supply area, construct a water supply network topology structure of the target water supply area based on the water supply network layout information, analyze the water supply network topology structure, and determine the layout location of water supply monitoring sensors in the target water supply area; The locations of water supply monitoring sensors in the target water supply area are determined based on the locations of hydraulic imbalance, including locations where pressure changes exceed a preset threshold, pipe intersections, locations of minimum and maximum water supply pressure, locations of minimum and maximum water supply flow, and areas with intensive user demand. Constructing a water supply monitoring simulation model for the target water supply area based on 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 based on the water supply monitoring simulation model, and identifying water demand characteristics of the target water supply area; The water demand characteristics include water peak characteristics, water spatial distribution characteristics, and water pressure and water flow variation characteristics; Construct an adaptive flow regulation model for the target water supply area, analyze the water demand characteristics based on the adaptive flow regulation model, determine the water supply control parameters for the target water supply area, and construct a water supply control strategy based on the water supply control parameters, specifically: Obtaining water supply pressure and water supply flow demand information for 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 in 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 point in the target water supply area in different time periods based on 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 point reaches the required water demand; Calculating compensation coefficients for water supply pressure and water supply flow according to the water supply pressure and water supply flow loss values, determining water supply control parameters for water supply equipment in a target water supply area according to the compensation coefficients, 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 water supply network layout information of the target water supply area, constructing a water supply network topology structure of the target water supply area based on the water supply network layout information, analyzing the water supply network topology structure, and determining the layout positions of water supply monitoring sensors in the target water supply area further includes: Obtaining water supply network layout information for the target water supply area, including pipe diameter, pipe length, valve and pump station location information, and water point location information; Modeling the water supply network of the target water supply area according to the water supply network layout information to construct a water supply network topology structure of the target water supply area; Performing a water supply simulation analysis on the water supply network topology based on a fluid mechanics model to identify the range of changes in flow, pressure, and hydraulics at different nodes and pipelines in the water supply network topology, and obtaining fluid parameter change data for the target water supply area; The hydraulic balance of the water supply network is determined according to the fluid parameter change data, and the hydraulic change imbalance position of the water supply network is identified according to the hydraulic balance.

3. The 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 their deployment locations, link data collected by the water supply monitoring sensors with the water supply network topology, 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; An inverse distance weighted interpolation algorithm is introduced to calibrate the water supply information at the location of each water supply monitoring sensor as a known point, obtain water supply monitoring accuracy requirement data for the target water supply area, and determine the water supply information interpolation density of the water supply monitoring simulation model based on 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; Visualizing the water supply information at each location of the water supply monitoring simulation model to obtain a water supply information distribution map, updating the water supply information distribution map in real time according to the data update frequency of each water supply monitoring sensor, and performing real-time water supply monitoring of the target water supply area based on 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 step of obtaining a real-time water supply information distribution map based on real-time water supply monitoring to identify water demand characteristics of the target water supply area also includes: Acquire a real-time water supply information distribution map based on real-time water supply monitoring, and obtain 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 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; The water demand characteristics of the target water supply area are determined according to the water supply characteristics.

5. The 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: Controlling water supply to the target water supply area according to the water supply control strategy, obtaining the water outlet pressure and water outlet flow information of each water use point in the target water supply area in real time, and evaluating the degree to which the water supply control strategy satisfies the water demand of the target water supply area based on the water outlet pressure and water outlet flow information; If the satisfaction level is less than a preset value, construct a water supply information distribution map based on the water supply monitoring simulation model, evaluate the pressure balance state of the water supply network based on the water supply information distribution map, identify a fault state of the water supply network based on the pressure balance state, the fault state including pipe blockage and damage, and if a fault state exists, determine a pressure imbalance location based on the pressure balance state, determine a fault location based on the pressure imbalance location, and perform maintenance operations on the fault location; If no fault condition exists, 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, a degree of performance degradation of the water supply monitoring sensor is determined based on the performance data, and a comprehensive analysis is performed on the degree of performance degradation and the usage time to determine the impact of the usage time of the water supply sensor on the degree of performance degradation, thereby obtaining impact 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 based on the impact data and the usage time data of each water supply monitoring sensor; A performance degradation threshold is preset, and if the performance degradation is greater than the performance degradation threshold, the water supply monitoring sensor whose performance degradation is greater than the performance degradation threshold is replaced; If the performance degradation degree is not greater than the performance degradation degree threshold, determining a 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. The water supply control strategy is optimized according to the updated water supply control parameters.

6. A water supply control system based on adaptive regulation of fluid flow, characterized in that: It includes a storage and a processor, the storage includes a water supply control method program based on fluid flow adaptive regulation, and when the water supply control method program based on fluid flow adaptive regulation is executed by the processor, the steps of the water supply control method based on fluid flow adaptive regulation as described in any one of claims 1 to 5 are implemented.

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