System and method for dynamically adjusting pressure during flushing of water supply pipe network

Abstract

The invention relates to the technical field of cleaning control, and discloses a dynamic pressure adjusting system and method for a water supply pipe network during flushing, the system comprises a flushing liquid temporary storage tank, a liquid supply pump, a filter and a control device, the control device comprises a collecting unit, the collecting unit collects the average impurity thickness of the pipe network to be flushed, and the initial flushing pressure is determined; the judgment unit collects a first water volume difference data set and compares the first water volume difference data set with a difference threshold to judge whether the initial flushing pressure is adjusted or not; the adjusting unit compares the characteristic index with a historical adjusting scheme to determine an adjusting coefficient to adjust the initial flushing pressure; collecting the second average impurity thickness of the pipe network to be flushed to judge whether to carry out early warning or not; and the early warning unit determines an early warning level according to the second average impurity thickness. Through automatic adjustment, monitoring and early warning, the cleaning effect of the pipeline is improved, and the service life of the pipeline is prolonged.

Description

Technical Field

[0001] The present invention relates to the field of cleaning control technology, and in particular to a system and method for dynamically regulating pressure during flushing of a water supply network. Background Art

[0002] In the operation of the water supply network, in order to ensure the long-term effective operation of the pipeline and the safety of water quality, it is necessary to regularly flush and clean the pipeline. During the flushing process, high-pressure flushing fluid is injected into the pipeline to remove impurities, sediments and scale inside the pipeline, effectively extending the service life of the pipeline and ensuring the water quality.

[0003] However, traditional pipeline flushing usually relies on fixed flushing pressure and flow rate. Regardless of the amount and distribution of impurities in the pipeline, the flushing pressure remains unchanged. This may lead to incomplete cleaning, especially when there are many impurities in the pipeline, and it is impossible to ensure adequate cleaning. In addition, there is a lack of real-time monitoring of flushing fluid flow and filtration effect, and the flushing pressure cannot be dynamically adjusted according to the actual situation of the pipeline network.

[0004] Therefore, it is necessary to design a system and method for dynamically adjusting pressure during flushing of a water supply network to solve the problems existing in the current technology. Summary of the invention

[0005] In view of this, the present invention proposes a system and method for dynamically adjusting pressure during flushing of a water supply network, aiming to solve the problems of poor flushing effect and excessive energy consumption in current pipeline flushing technology.

[0006] In one aspect, the present invention provides a system for dynamically adjusting pressure during flushing of a water supply network, comprising: A flushing liquid temporary storage tank, used for storing circulating flushing liquid, one end of which is connected to the water outlet of the water supply network; A liquid supply pump, used to extract flushing liquid from a storage tank or a flushing liquid temporary storage tank and transport it to the water inlet of the water supply network; the flushing liquid includes new flushing liquid and the circulating flushing liquid; A filter, arranged between the flushing liquid temporary storage tank and the liquid supply pump; A control device, including a collection unit, an adjustment unit, a judgment unit and an early warning unit; The collecting unit is configured to collect an average impurity thickness of the pipe network to be flushed, determine an initial flushing pressure according to the average impurity thickness, and control the liquid supply pump to operate at the initial flushing pressure; The judgment unit is configured to collect water volume differences before and after the filter for no less than three times within a preset period of time to establish a first water volume difference data set, compare the data at the latest moment in the first water volume difference data set with the difference threshold, and judge whether to adjust the initial flushing pressure according to the comparison result; The adjustment unit is configured to, when the judgment unit determines to adjust the initial flushing pressure, obtain the difference change slope according to the first water volume difference data set, use the difference change slope and pipeline information as characteristic indexes, compare the characteristic index with historical adjustment plans, and determine the adjustment coefficient according to the comparison result to adjust the initial flushing pressure; The adjustment unit is further configured to control the liquid supply pump to operate at the adjusted flushing pressure, collect a second average impurity thickness of the pipe network to be flushed, and determine whether to issue an early warning according to the second average impurity thickness; The warning unit is configured to determine a warning level according to the second average impurity thickness when the adjustment unit determines to issue a warning.

[0007] Furthermore, when the collection unit collects the average impurity thickness of the pipe network to be flushed, it includes: Based on ultrasonic emission of high-frequency sound waves and receiving reflected echo signals, an average impurity thickness of the pipe network to be flushed is obtained; When obtaining the average impurity thickness of the pipe network to be flushed according to the echo signal, it also includes: Using weighted average filtering to perform time domain filtering and denoising on the echo signal; The signal after time domain filtering and denoising is subjected to wavelet transform, and the signal is decomposed using the fourth-order Daubechies wavelet, and the coefficients of the high-frequency part that are less than the frequency threshold are set to zero; The denoised echo signal is obtained through inverse wavelet transform.

[0008] Furthermore, when the acquisition unit determines the initial flushing pressure according to the average impurity thickness, it includes: The acquisition unit compares the average impurity thickness with a first preset impurity thickness and a second preset impurity thickness, respectively, and determines an initial flushing pressure according to the comparison result, wherein the first preset impurity thickness is less than the second preset impurity thickness; When the average impurity thickness is less than or equal to the first preset impurity thickness, the acquisition unit determines that the initial flushing pressure is the first pressure; when the average impurity thickness is greater than the first preset impurity thickness and less than or equal to the second preset impurity thickness, the acquisition unit determines that the initial flushing pressure is the second pressure; when the average impurity thickness is greater than the second preset impurity thickness, the acquisition unit determines that the initial flushing pressure is the third pressure; and the first pressure is less than the second pressure, and the second pressure is less than the third pressure.

[0009] Furthermore, when the judging unit judges whether to adjust the initial flushing pressure according to the comparison result, it includes: When the data at the latest moment in the first water volume difference data set is greater than the difference threshold, the judgment unit determines to adjust the initial flushing pressure; When the data at the most recent moment in the first water volume difference data set is less than or equal to a difference threshold, the judgment unit determines not to adjust the initial flushing pressure.

[0010] Furthermore, when the adjustment unit compares the characteristic index with the historical adjustment scheme, it includes: The adjustment unit calculates the similarity between each historical characteristic index in the historical adjustment scheme and the characteristic index; When there is data in the historical adjustment scheme whose similarity with the characteristic index is greater than a similarity threshold, the initial flushing pressure is adjusted according to the historical adjustment coefficient corresponding to the maximum similarity; When the similarity between the historical characteristic index in the historical adjustment scheme and the characteristic index is less than or equal to the similarity threshold, an adjustment set is screened in the historical adjustment scheme, and an adjustment coefficient is determined according to the adjustment set to adjust the initial flushing pressure.

[0011] Furthermore, the adjustment unit selects an adjustment set from the historical adjustment schemes, and determines an adjustment coefficient according to the adjustment set to adjust the initial flushing pressure, including: Clustering the historical characteristic index in the historical adjustment scheme and the characteristic index using cluster analysis to obtain a clustering result; Taking the historical characteristic indexes in the cluster where the characteristic indexes are located as the adjustment set; The historical adjustment coefficients in the adjustment set that are greater than the median of the historical adjustment coefficients are included in the first data group; the historical adjustment coefficients in the adjustment set that are less than the median of the historical adjustment coefficients are included in the second data group; the initial flushing pressure is adjusted by determining the adjustment coefficient based on the first data group, the second data group and the median of the historical adjustment coefficients.

[0012] Furthermore, when the adjustment unit determines the adjustment coefficient based on the first data group, the second data group and the median of the historical adjustment coefficients to adjust the initial flushing pressure, it includes:

[0013] Among them, J represents the adjustment coefficient, J1 represents the average value of the historical adjustment coefficients in the first data group, J0 represents the median of the historical adjustment coefficients, J2 represents the average value of the historical adjustment coefficients in the second data group, n1 represents the number of historical adjustment coefficients in the first data group, and n2 represents the number of historical adjustment coefficients in the second data group.

[0014] Furthermore, when the adjustment unit determines whether to issue an early warning according to the second average impurity thickness, it includes: When the second average impurity thickness is greater than a thickness threshold, the adjustment unit determines to issue an early warning; When the second average impurity thickness is less than or equal to a thickness threshold, the adjustment unit determines not to issue an early warning.

[0015] Furthermore, when the early warning unit determines the early warning level according to the second average impurity thickness, it includes: The warning unit obtains a thickness difference based on the second average impurity thickness and a thickness threshold, wherein the thickness difference is the difference between the second average impurity thickness and the thickness threshold, and determines a warning level based on the thickness difference, wherein the warning level is proportional to the thickness difference.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting up a linkage mechanism of a flushing liquid temporary storage box, a liquid supply pump and a filter, the new flushing liquid is effectively combined with the circulating flushing liquid to ensure a continuous and stable supply of flushing liquid, and the liquid quality is monitored in real time through the filter. The acquisition unit preliminarily sets the flushing pressure according to the average impurity thickness of the pipeline network. Combined with the real-time monitoring data, the flushing pressure can be dynamically adjusted to avoid excessive or insufficient cleaning caused by fixed pressure in traditional methods, thereby ensuring the accuracy and effect of pipeline cleaning. The judgment unit further optimizes the flushing pressure and improves the adaptive ability by collecting the water volume difference before and after the filter, establishing a data set and comparing it with the threshold. After the pressure is adjusted, the average impurity thickness is collected again, and combined with the early warning unit to determine whether to issue a warning, potential risks such as pipeline blockage and equipment overload can be effectively prevented.

[0017] On the other hand, the present application also provides a method for dynamically adjusting pressure during flushing of a water supply network, which is applied to the above-mentioned system for dynamically adjusting pressure during flushing of a water supply network, comprising: Collecting the average impurity thickness of the pipe network to be flushed, determining the initial flushing pressure according to the average impurity thickness, and controlling the liquid supply pump to operate at the initial flushing pressure; Collecting water volume differences before and after the filter for no less than three times within a preset period of time to establish a first water volume difference data set, comparing the data at the latest moment in the first water volume difference data set with a difference threshold, and judging whether to adjust the initial flushing pressure according to the comparison result; When it is determined that the initial flushing pressure is to be adjusted, the adjustment unit obtains the difference change slope according to the first water volume difference data set, takes the difference change slope and the pipeline information as characteristic indexes, compares the characteristic index with historical adjustment schemes, and determines an adjustment coefficient according to the comparison result to adjust the initial flushing pressure; Controlling the liquid supply pump to operate at the adjusted flushing pressure, collecting the second average impurity thickness of the pipe network to be flushed, and determining whether to issue an early warning according to the second average impurity thickness; When it is determined that a warning is to be issued, a warning level is determined according to the second average impurity thickness.

[0018] It is understandable that the above-mentioned system and method for dynamic pressure regulation during flushing of water supply network have the same beneficial effects, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 A structural block diagram of a system for dynamically adjusting pressure during flushing of a water supply network provided by an embodiment of the present invention; Figure 2 A flow chart of a method for dynamically adjusting pressure during flushing of a water supply network provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0020] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] In some embodiments of the present application, see Figure 1 As shown, a pressure dynamic regulation system for flushing a water supply network comprises: A flushing liquid temporary storage tank is used to store circulating flushing liquid, one end of which is connected to the water outlet of the water supply network; A liquid supply pump is used to extract flushing liquid from a storage tank or a flushing liquid temporary storage tank and transport it to the water inlet of the water supply network; the flushing liquid includes new flushing liquid and circulating flushing liquid; A filter is arranged between the flushing liquid temporary storage tank and the liquid supply pump; A control device, including a collection unit, an adjustment unit, a judgment unit and an early warning unit; The collecting unit is configured to collect the average impurity thickness of the pipe network to be flushed, determine the initial flushing pressure according to the average impurity thickness, and control the liquid supply pump to operate at the initial flushing pressure; The judgment unit is configured to collect water volume differences before and after the filter for no less than three times within a preset period of time to establish a first water volume difference data set, compare the data at the latest moment in the first water volume difference data set with the difference threshold, and judge whether to adjust the initial flushing pressure according to the comparison result; The adjustment unit is configured to, when the judgment unit determines that the initial flushing pressure is to be adjusted, obtain the difference change slope according to the first water volume difference data set, use the difference change slope and the pipeline information as characteristic indexes, compare the characteristic index with the historical adjustment scheme, and determine the adjustment coefficient according to the comparison result to adjust the initial flushing pressure; The adjustment unit is further configured to control the liquid supply pump to operate at the adjusted flushing pressure, collect the second average impurity thickness of the pipe network to be flushed, and determine whether to issue an early warning according to the second average impurity thickness; The warning unit is configured to determine a warning level according to the second average impurity thickness when the adjustment unit determines to issue a warning.

[0022] Specifically, the flushing liquid temporary storage tank is used to store the circulating flushing liquid, while the liquid supply pump is responsible for transporting the flushing liquid in the storage tank to the water supply network. The industrial pump has two liquid inlets, one connected to the flushing liquid temporary storage tank and the other connected to the new flushing liquid. The flushing liquid contains new flushing liquid and the flushing liquid that has been recycled. The filter is set between the flushing liquid temporary storage tank and the liquid supply pump to filter out impurities and sediments in the pipeline. By real-time monitoring the difference in water volume before and after the filter, the distribution of impurities in the pipe network and the cleaning effect can be judged.

[0023] The collection unit collects the average impurity thickness of the pipe network. It determines the initial flushing pressure and controls the liquid supply pump to operate at the initial pressure. By obtaining the impurity thickness, it ensures that the appropriate flushing pressure is selected at the beginning of flushing to initially avoid over- or under-flushing.

[0024] The judgment unit collects the water volume difference before and after the filter at least three times within a preset period of time to form a water volume difference data set. By comparing these differences with the preset difference threshold, it is judged whether the flushing pressure needs to be adjusted. The water volume difference reflects the accumulation degree of impurities in the pipe network and helps to judge whether the flushing strategy needs to be changed.

[0025] When the judgment unit finds that the water volume difference exceeds the threshold, the adjustment unit will adjust the flushing pressure according to the slope of the water volume difference change. By comparing the historical adjustment plan and pipeline information (such as pipeline diameter, impurity type, etc.), the adjustment coefficient is determined and the flushing pressure is adjusted accordingly. The accuracy of the flushing process is ensured to avoid excessive or low pressure affecting the flushing effect or pipeline safety.

[0026] Early warning unit: When the adjusted flushing pressure still cannot achieve the expected cleaning effect, the early warning unit determines whether to issue an early warning signal based on the impurity thickness data collected for the second time. If the impurity thickness reaches a certain early warning standard, the operator is prompted to take measures to prevent pipeline blockage or equipment damage.

[0027] It is understandable that by collecting the average impurity thickness data of the pipe network to be flushed and the difference in water volume before and after the filter, the flushing pressure is intelligently adjusted according to the specific situation, avoiding the inefficiency and waste of resources caused by fixed pressure. The adjustment unit combines historical data and pipeline characteristics for precise adjustment to ensure the rationality and efficiency of the flushing pressure, which not only ensures the cleaning effect of the pipeline, but also avoids damage to the pipeline caused by excessive pressure. The early warning unit has added an intelligent risk prediction function. When too much impurity accumulates in the pipeline, it can give an early warning to help maintenance personnel take timely measures to avoid potential equipment failures and pipeline blockages.

[0028] It is understandable that friction balls can be added during flushing. The friction balls are small spheres that can flow freely inside the pipe and are usually made of wear-resistant, soft and elastic materials. The friction balls generate friction by contacting the inner wall of the pipe and moving along the pipe under the action of water flow, which can effectively loosen the dirt, sediment and impurities in the pipe. Not only can the effect of the traditional flushing method be enhanced, but also the situation that the flushing process is not completely cleaned due to uneven water flow or insufficient pressure can be avoided. The flushing liquid drives the friction ball to flow along the pipe through the delivery of the liquid supply pump, which enhances the force of the flushing liquid. When the friction ball moves in the pipe, it helps to remove solid deposits in the pipe, such as scale, rust, etc., and bring them into the filter for further processing. By real-time monitoring the difference in water volume before and after the filter, the amount of impurities taken away by the friction ball can be judged, and then the flushing effect can be evaluated. Combining the friction ball with this embodiment improves the cleaning efficiency, increases the adaptability and intelligence level of the system, and helps to further optimize the flushing effect of the pipe network on the basis of dynamic adjustment of the flushing pressure, avoiding unnecessary damage and waste of resources caused by excessive or insufficient pressure.

[0029] In some embodiments of the present application, when the collecting unit collects the average impurity thickness of the pipe network to be flushed, it includes: emitting high-frequency sound waves based on ultrasound and receiving reflected echo signals to obtain the average impurity thickness of the pipe network to be flushed; When obtaining the average impurity thickness of the pipe network to be flushed according to the echo signal, it also includes: The echo signal is filtered and denoised in the time domain using weighted average filtering; The signal after time domain filtering and denoising is subjected to wavelet transform, and the signal is decomposed using the fourth-order Daubechies wavelet, and the coefficients of the high-frequency part that are less than the frequency threshold are set to zero; The denoised echo signal is obtained through inverse wavelet transform.

[0030] It is understandable that the accuracy and reliability of the measurement of impurity thickness in the pipeline network are improved by combining ultrasonic signal acquisition with signal processing technology (such as weighted average filtering and wavelet transform). Ultrasonic echo signal acquisition can capture the distribution of impurities in the pipeline, and weighted average filtering and wavelet transform effectively remove the noise in the echo signal, ensuring the purity and accuracy of the signal. The signal quality is improved, making the measurement of impurity thickness more accurate, and through denoising, the response accuracy of subsequent control is improved, ensuring more accurate adjustment of flushing pressure. In addition, through wavelet transform denoising, it is possible to flexibly respond to signal changes under different pipeline conditions.

[0031] In some embodiments of the present application, when the acquisition unit determines the initial flushing pressure according to the average impurity thickness, it includes: the acquisition unit compares the average impurity thickness with a preset first preset impurity thickness and a second preset impurity thickness, respectively, and determines the initial flushing pressure according to the comparison result, the first preset impurity thickness being less than the second preset impurity thickness; Specifically, when the average impurity thickness is less than or equal to the first preset impurity thickness, the acquisition unit determines that the initial flushing pressure is the first pressure; when the average impurity thickness is greater than the first preset impurity thickness and less than or equal to the second preset impurity thickness, the acquisition unit determines that the initial flushing pressure is the second pressure; when the average impurity thickness is greater than the second preset impurity thickness, the acquisition unit determines that the initial flushing pressure is the third pressure; and the first pressure is less than the second pressure, and the second pressure is less than the third pressure.

[0032] It is understandable that by dynamically adjusting the flushing pressure according to the actual impurity thickness, energy waste caused by excessive pressure is avoided, and incomplete cleaning caused by too low pressure is also avoided. Adjusting the pressure according to the thickness of the impurities achieves energy saving and efficient flushing. By controlling the initial flushing pressure, the impact of excessive pressure on the pipeline is avoided, especially when there are fewer impurities in the pipeline network, which avoids unnecessary impact and pipeline wear, and helps to extend the service life of the pipeline.

[0033] In some embodiments of the present application, the judgment unit determines whether to adjust the initial flushing pressure based on the comparison result, including: when the data at the most recent moment in the first water volume difference data set is greater than the difference threshold, the judgment unit determines to adjust the initial flushing pressure; when the data at the most recent moment in the first water volume difference data set is less than or equal to the difference threshold, the judgment unit determines not to adjust the initial flushing pressure.

[0034] In some embodiments of the present application, when the adjustment unit compares the characteristic index with the historical adjustment scheme, the adjustment unit calculates the similarity between each historical characteristic index and the characteristic index in the historical adjustment scheme; Specifically, when there is data in the historical adjustment plan whose similarity with the characteristic index is greater than the similarity threshold, the initial flushing pressure is adjusted according to the historical adjustment coefficient corresponding to the maximum similarity; when the similarity between the historical characteristic index and the characteristic index in the historical adjustment plan is less than or equal to the similarity threshold, the adjustment set is screened in the historical adjustment plan, and the adjustment coefficient is determined according to the adjustment set to adjust the initial flushing pressure.

[0035] Specifically, the historical adjustment plan includes the previous pressure adjustment history and its corresponding characteristic index. A "historical adjustment plan" database is established based on historical data to determine whether the adjustment experience can be directly borrowed.

[0036] It is understandable that the need to adjust the flushing pressure is determined based on the real-time water volume difference, ensuring that the system can flexibly adjust the flushing intensity according to the actual situation. This avoids incomplete flushing due to excessive accumulation of impurities, and also avoids high-pressure flushing to save energy. By comparing historical adjustment plans and drawing on past experience, the adjustment plan is ensured to be more accurate, avoiding repeated experiments and misadjustments, and improving the adjustment efficiency. Through the comprehensive analysis of characteristic indexes and historical plans, the flushing pressure can be flexibly adjusted according to the actual status of the pipe network, making the flushing process more personalized.

[0037] In some embodiments of the present application, when the adjustment unit screens an adjustment set in historical adjustment schemes and determines an adjustment coefficient according to the adjustment set to adjust the initial flushing pressure, the method includes: Cluster analysis is used to cluster the historical characteristic index and characteristic index in the historical adjustment plan to obtain the clustering results; The historical characteristic indexes in the cluster where the characteristic indexes are located are used as the adjustment set; The historical adjustment coefficients in the adjustment set that are greater than the median of the historical adjustment coefficients are included in the first data group; the historical adjustment coefficients in the adjustment set that are less than the median of the historical adjustment coefficients are included in the second data group; the initial flushing pressure is adjusted by determining the adjustment coefficient based on the first data group, the second data group and the median of the historical adjustment coefficients.

[0038] In some embodiments of the present application, when the adjustment unit determines the adjustment coefficient according to the first data group, the second data group and the median of the historical adjustment coefficient to adjust the initial flushing pressure, it includes:

[0039] Among them, J represents the adjustment coefficient, J1 represents the average value of the historical adjustment coefficients in the first data group, J0 represents the median of the historical adjustment coefficients, J2 represents the average value of the historical adjustment coefficients in the second data group, n1 represents the number of historical adjustment coefficients in the first data group, and n2 represents the number of historical adjustment coefficients in the second data group.

[0040] It is understandable that by clustering analysis, the historical data most similar to the current pipe network characteristic index is screened, and the appropriate adjustment coefficient is dynamically determined for each flushing process, so as to accurately adjust the flushing pressure. Unlike the traditional method that relies on a fixed adjustment mode, the grouping and calculation of historical data are used to provide personalized adjustment strategies according to the actual situation of the pipe network. It can not only automatically process complex data relationships, but also reduce manual intervention, improve the intelligence and efficiency of the adjustment, and ensure the accuracy and cleaning effect of the pipe network flushing process. Dynamic and flexible flushing pressure adjustment based on historical experience is achieved.

[0041] In some embodiments of the present application, the adjustment unit determines whether to issue a warning based on the second average impurity thickness, including: when the second average impurity thickness is greater than the thickness threshold, the adjustment unit determines to issue a warning; when the second average impurity thickness is less than or equal to the thickness threshold, the adjustment unit determines not to issue a warning.

[0042] In some embodiments of the present application, when the warning unit determines the warning level based on the second average impurity thickness, it includes: the warning unit obtains a thickness difference based on the second average impurity thickness and the thickness threshold, the thickness difference is the difference between the second average impurity thickness and the thickness threshold, and determines the warning level based on the thickness difference, and the warning level is directly proportional to the thickness difference.

[0043] It can be understood that by comparing the second average impurity thickness with the preset thickness threshold, judging whether to trigger an early warning, and determining the early warning level based on the difference, an accurate early warning management method is provided. The response speed of the early warning is improved, and the early warning level can be dynamically adjusted according to the severity of the actual impurity accumulation to ensure that potential problems can be discovered in time and corresponding measures can be taken. The proportional relationship between the thickness difference and the early warning level makes the early warning system more flexible and accurate, avoiding excessive early warnings or missed reports.

[0044] In the above-mentioned embodiment, a linkage mechanism of a flushing liquid temporary storage box, a liquid supply pump and a filter is provided to effectively combine the new flushing liquid with the circulating flushing liquid, ensure a continuous and stable supply of flushing liquid, and monitor the liquid quality in real time through the filter. The acquisition unit preliminarily sets the flushing pressure according to the average impurity thickness of the pipeline network. Combined with the real-time monitoring data, the flushing pressure can be dynamically adjusted to avoid excessive or insufficient cleaning caused by fixed pressure in traditional methods, thereby ensuring the accuracy and effect of pipeline cleaning. The judgment unit further optimizes the flushing pressure and improves the adaptive ability by collecting the difference in water volume before and after the filter, establishing a data set and comparing it with the threshold. After the pressure is adjusted, the average impurity thickness is collected again, and combined with the early warning unit to determine whether to issue a warning, potential risks such as pipeline blockage and equipment overload can be effectively prevented.

[0045] In another preferred embodiment based on the above embodiment, refer to Figure 2 As shown, this embodiment provides a method for dynamically adjusting pressure during flushing of a water supply network, which is applied to the above-mentioned system for dynamically adjusting pressure during flushing of a water supply network, and includes: S100: collecting the average impurity thickness of the pipe network to be flushed, determining the initial flushing pressure according to the average impurity thickness, and controlling the liquid supply pump to operate at the initial flushing pressure; S200: collecting water volume differences before and after the filter for no less than three times within a preset period to establish a first water volume difference data set, comparing the data at the latest moment in the first water volume difference data set with a difference threshold, and determining whether to adjust the initial flushing pressure according to the comparison result; S300: When it is determined that the initial flushing pressure is to be adjusted, the adjustment unit obtains the difference change slope according to the first water volume difference data set, takes the difference change slope and the pipeline information as characteristic indexes, compares the characteristic index with the historical adjustment scheme, and determines the adjustment coefficient according to the comparison result to adjust the initial flushing pressure; S400: Control the liquid supply pump to operate at the adjusted flushing pressure, collect the second average impurity thickness of the pipe network to be flushed, and determine whether to issue an early warning according to the second average impurity thickness; S500: When it is determined that a warning is to be issued, a warning level is determined according to the second average impurity thickness.

[0046] It is understandable that by setting up a linkage mechanism of the flushing liquid temporary storage box, the liquid supply pump and the filter, the new flushing liquid is effectively combined with the circulating flushing liquid to ensure a continuous and stable supply of flushing liquid, and the liquid quality is monitored in real time through the filter. The acquisition unit preliminarily sets the flushing pressure according to the average impurity thickness of the pipeline network. Combined with the real-time monitoring data, it can dynamically adjust the flushing pressure, avoiding excessive or insufficient cleaning caused by fixed pressure in traditional methods, and ensuring the accuracy and effect of pipeline cleaning. The judgment unit collects the difference in water volume before and after the filter, establishes a data set and compares it with the threshold, further optimizing the flushing pressure and improving the adaptive ability. After the pressure is adjusted, the average impurity thickness is collected again, and combined with the early warning unit to determine whether to issue a warning, it can effectively prevent potential risks such as pipeline blockage and equipment overload.

[0047] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0048] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0049] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0050] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A dynamic pressure regulation system for flushing a water supply network, characterized in that: include: A flushing liquid temporary storage tank, used for storing circulating flushing liquid, one end of which is connected to the water outlet of the water supply network; A liquid supply pump, used to extract flushing liquid from a storage tank or a flushing liquid temporary storage tank and transport it to the water inlet of the water supply network; the flushing liquid includes new flushing liquid and the circulating flushing liquid; A filter, arranged between the flushing liquid temporary storage tank and the liquid supply pump; A control device, including a collection unit, an adjustment unit, a judgment unit and an early warning unit; The collecting unit is configured to collect an average impurity thickness of the pipe network to be flushed, determine an initial flushing pressure according to the average impurity thickness, and control the liquid supply pump to operate at the initial flushing pressure; The judgment unit is configured to collect water volume differences before and after the filter for no less than three times within a preset period of time to establish a first water volume difference data set, compare the data at the latest moment in the first water volume difference data set with the difference threshold, and judge whether to adjust the initial flushing pressure according to the comparison result; The adjustment unit is configured to, when the judgment unit determines to adjust the initial flushing pressure, obtain the difference change slope according to the first water volume difference data set, use the difference change slope and pipeline information as characteristic indexes, compare the characteristic index with historical adjustment plans, and determine the adjustment coefficient according to the comparison result to adjust the initial flushing pressure; The adjustment unit is further configured to control the liquid supply pump to operate at the adjusted flushing pressure, collect a second average impurity thickness of the pipe network to be flushed, and determine whether to issue an early warning according to the second average impurity thickness; The warning unit is configured to determine a warning level according to the second average impurity thickness when the adjustment unit determines to issue a warning.

2. The system for dynamically adjusting pressure during flushing of a water supply network according to claim 1, characterized in that: When the collection unit collects the average impurity thickness of the pipe network to be flushed, it includes: Based on ultrasonic emission of high-frequency sound waves and receiving reflected echo signals, an average impurity thickness of the pipe network to be flushed is obtained; When obtaining the average impurity thickness of the pipe network to be flushed according to the echo signal, it also includes: Using weighted average filtering to perform time domain filtering and denoising on the echo signal; The signal after time domain filtering and denoising is subjected to wavelet transform, and the signal is decomposed using the fourth-order Daubechies wavelet, and the coefficients of the high-frequency part that are less than the frequency threshold are set to zero; The denoised echo signal is obtained through inverse wavelet transform.

3. The system for dynamically adjusting pressure during flushing of a water supply network according to claim 1, characterized in that: When the acquisition unit determines the initial flushing pressure according to the average impurity thickness, it includes: The acquisition unit compares the average impurity thickness with a first preset impurity thickness and a second preset impurity thickness, respectively, and determines an initial flushing pressure according to the comparison result, wherein the first preset impurity thickness is less than the second preset impurity thickness; When the average impurity thickness is less than or equal to the first preset impurity thickness, the acquisition unit determines that the initial flushing pressure is the first pressure; when the average impurity thickness is greater than the first preset impurity thickness and less than or equal to the second preset impurity thickness, the acquisition unit determines that the initial flushing pressure is the second pressure; when the average impurity thickness is greater than the second preset impurity thickness, the acquisition unit determines that the initial flushing pressure is the third pressure; and the first pressure is less than the second pressure, and the second pressure is less than the third pressure.

4. The system for dynamically adjusting pressure during flushing of a water supply network according to claim 1, characterized in that: When the judging unit judges whether to adjust the initial flushing pressure according to the comparison result, it includes: When the data at the latest moment in the first water volume difference data set is greater than the difference threshold, the judgment unit determines to adjust the initial flushing pressure; When the data at the most recent moment in the first water volume difference data set is less than or equal to a difference threshold, the judgment unit determines not to adjust the initial flushing pressure.

5. The system for dynamically adjusting pressure during flushing of a water supply network according to claim 4, characterized in that: When the adjustment unit compares the characteristic index with the historical adjustment scheme, it includes: The adjustment unit calculates the similarity between each historical characteristic index in the historical adjustment scheme and the characteristic index; When there is data in the historical adjustment scheme whose similarity with the characteristic index is greater than a similarity threshold, the initial flushing pressure is adjusted according to the historical adjustment coefficient corresponding to the maximum similarity; When the similarity between the historical characteristic index in the historical adjustment scheme and the characteristic index is less than or equal to the similarity threshold, an adjustment set is screened in the historical adjustment scheme, and an adjustment coefficient is determined according to the adjustment set to adjust the initial flushing pressure.

6. The system for dynamically adjusting pressure during flushing of a water supply network according to claim 5, characterized in that: The adjusting unit selects an adjustment set from the historical adjustment schemes, and determines an adjustment coefficient according to the adjustment set to adjust the initial flushing pressure, including: Clustering the historical characteristic index in the historical adjustment scheme and the characteristic index using cluster analysis to obtain a clustering result; Taking the historical characteristic indexes in the cluster where the characteristic indexes are located as the adjustment set; The historical adjustment coefficients in the adjustment set that are greater than the median of the historical adjustment coefficients are included in the first data group; the historical adjustment coefficients in the adjustment set that are less than the median of the historical adjustment coefficients are included in the second data group; the initial flushing pressure is adjusted by determining the adjustment coefficient based on the first data group, the second data group and the median of the historical adjustment coefficients.

7. The system for dynamically adjusting pressure during flushing of a water supply network according to claim 6, characterized in that: When the adjustment unit determines the adjustment coefficient based on the first data group, the second data group and the median of the historical adjustment coefficient to adjust the initial flushing pressure, it includes: ； Among them, J represents the adjustment coefficient, J1 represents the average value of the historical adjustment coefficients in the first data group, J0 represents the median of the historical adjustment coefficients, J2 represents the average value of the historical adjustment coefficients in the second data group, n1 represents the number of historical adjustment coefficients in the first data group, and n2 represents the number of historical adjustment coefficients in the second data group.

8. The system for dynamically adjusting pressure during flushing of a water supply network according to claim 1, characterized in that: When the adjustment unit determines whether to issue an early warning according to the second average impurity thickness, it includes: When the second average impurity thickness is greater than a thickness threshold, the adjustment unit determines to issue an early warning; When the second average impurity thickness is less than or equal to a thickness threshold, the adjustment unit determines not to issue an early warning.

9. The system for dynamically adjusting pressure during flushing of a water supply network according to claim 8, characterized in that: When the early warning unit determines the early warning level according to the second average impurity thickness, it includes: The warning unit obtains a thickness difference based on the second average impurity thickness and a thickness threshold, wherein the thickness difference is the difference between the second average impurity thickness and the thickness threshold, and determines a warning level based on the thickness difference, wherein the warning level is proportional to the thickness difference.

10. A method for dynamically adjusting pressure during flushing of a water supply network, applied to a system for dynamically adjusting pressure during flushing of a water supply network as claimed in any one of claims 1 to 9, characterized in that: include: Collecting the average impurity thickness of the pipe network to be flushed, determining the initial flushing pressure according to the average impurity thickness, and controlling the liquid supply pump to operate at the initial flushing pressure; Collecting water volume differences before and after the filter for no less than three times within a preset period of time to establish a first water volume difference data set, comparing the data at the latest moment in the first water volume difference data set with a difference threshold, and judging whether to adjust the initial flushing pressure according to the comparison result; When it is determined that the initial flushing pressure is to be adjusted, the adjustment unit obtains the difference change slope according to the first water volume difference data set, takes the difference change slope and the pipeline information as characteristic indexes, compares the characteristic index with historical adjustment schemes, and determines an adjustment coefficient according to the comparison result to adjust the initial flushing pressure; Controlling the liquid supply pump to operate at the adjusted flushing pressure, collecting the second average impurity thickness of the pipe network to be flushed, and determining whether to issue an early warning according to the second average impurity thickness; When it is determined that a warning is to be issued, a warning level is determined according to the second average impurity thickness.

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