Water supply service system and method

Abstract

The invention provides a water supply service system and method, and relates to the technical field of intelligent water supply, and the system comprises a data obtaining unit which is used for obtaining the real-time water supply pressure of each pipeline node in the water supply process; the pressure prediction unit is used for performing water supply pressure boosting prediction according to the real-time branch water supply pressure and the real-time main water supply pressure when it is monitored that the real-time branch water supply pressure is reduced, and a water supply pressure boosting value is obtained; the signal control unit is used for generating a variable-frequency control signal according to the water supply boosting value and performing water supply control on a variable-frequency water supply pump corresponding to the main pipeline; the anomaly analysis unit is used for performing anomaly analysis on the main pipeline according to the regulation main water supply pressure and the water supply pressure rise value of the main pipeline and the regulation branch water supply pressure of each water supply height in the water supply control process to obtain an analysis result; and the service early warning unit is used for carrying out water supply service early warning according to the analysis result. According to the system and the method provided by the invention, the water supply service abnormity response capability and the service quality can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of intelligent water supply technology, and in particular to a water supply service system and method. Background Technology

[0002] During the water supply service, a secondary water supply method can be adopted through a variable frequency water pump to dynamically adjust the water pressure in the main pipeline, so as to ensure that the water supply pressure of the main pipeline reaches the user's branch pipeline on each floor and meets the user's water pressure needs.

[0003] In the existing water supply service, due to the different heights of each floor, it is difficult to guarantee the water pressure requirements of each floor when users use a lot of water by simply adjusting the water pressure of the main pipeline using a variable frequency water pump. Moreover, when increasing the water pressure of the main pipeline, it is difficult to determine whether the blockage of the main pipeline is the cause of the reduced water pressure on each floor. This leads to frequent use of the variable frequency water pump and waste of water pressure adjustment resources. It also makes it difficult for maintenance personnel to accurately locate and repair the blockage of the main pipeline, causing many inconveniences to the water supply service. Summary of the Invention

[0004] This invention provides a water supply service system and method to solve the technical problems that it is difficult to guarantee the water pressure requirements of users' floors when they use a lot of water by simply regulating the water pressure of the main pipeline through a variable frequency water pump. Moreover, when the water pressure of the main pipeline is increased, it is difficult to determine whether the water pressure of each floor is reduced due to the unknown blockage of the main pipeline, which leads to the frequent use of the variable frequency water pump and the waste of water pressure regulation resources.

[0005] To achieve the above and other related objectives, the present invention provides a water supply service system, comprising: a data acquisition unit, used to acquire the real-time water supply pressure of each pipeline node during the water supply process, the water supply pressure including the real-time main water supply pressure corresponding to the main pipeline and the real-time branch water supply pressure corresponding to each branch water supply height connected to the main pipeline; a pressure prediction unit, used to predict the water supply pressure increase based on the real-time branch water supply pressure and the real-time main water supply pressure when a drop in real-time branch water supply pressure is detected, and obtain the water supply pressure increase value; a signal control unit, used to generate a frequency conversion control signal based on the water supply pressure increase value, and control the water supply of the frequency conversion water pump corresponding to the main pipeline; an anomaly analysis unit, used to perform anomaly analysis of the main pipeline during the water supply control process based on the main pipeline control pressure, the water supply pressure increase value, and the control branch water supply pressure at each water supply height, and obtain the analysis results; and a service early warning unit, used to issue a water supply service early warning based on the analysis results.

[0006] In one embodiment of the present invention, the pressure prediction unit includes: a coefficient query subunit, used to find the target pressure loss function between the branch water supply pressure and the main water supply pressure corresponding to the target water supply height in a pre-constructed pressure loss function relationship table, the pressure loss function relationship table including multiple pressure loss functions between the branch water supply pressure and the main water supply pressure corresponding to the water supply height; and a pressure rise prediction subunit, used to perform water supply pressure rise prediction based on the reliable branch water supply pressure corresponding to the target water supply height, the real-time branch water supply pressure, the real-time main water supply pressure, and the target pressure loss function, to obtain the water supply pressure rise value.

[0007] In one embodiment of the present invention, the pressure prediction unit further includes a table building subunit; the table building subunit includes: a classification module, used to obtain the test sub-supply pressure corresponding to different test main water supply pressures at each water supply height under the initial water supply state; a coefficient extraction module, used to obtain the pressure loss function corresponding to each water supply height based on the test sub-supply pressures corresponding to different test main water supply pressures at the same water supply height; and a table building module, used to establish a pressure loss function relationship table of the water supply process based on the pressure loss function corresponding to each water supply height.

[0008] In one embodiment of the present invention, the pressure boosting prediction subunit includes: a first pressure module, used to calculate the corresponding theoretical pressure of the main water supply based on the real-time branch water supply pressure and a target pressure loss function corresponding to the target water supply height; a loss calculation module, used to obtain the water supply pressure loss rate based on the theoretical pressure of the main water supply and the real-time main water supply pressure; a second pressure module, used to calculate the corresponding intermediate pressure of the main water supply based on the reliable pressure of the branch water supply and a target pressure loss function corresponding to the target water supply height; a loss processing module, used to obtain the reliable pressure of the main water supply based on the intermediate pressure of the main water supply and the water supply pressure loss rate; and a pressure boosting output module, used to obtain the water supply pressure boosting value based on the reliable pressure of the main water supply and the real-time main water supply pressure; wherein, the calculation formula for the water supply pressure boosting value is: ; Indicates the water pressure increase value. This represents the target pressure loss function corresponding to the target water supply height. Indicates the reliable pressure of the main water supply. Indicates the real-time main water supply pressure. Indicates the intermediate pressure of the main water supply. Indicates the water supply pressure loss rate. Indicates the theoretical pressure of the main water supply. Indicates real-time water supply pressure. This indicates the reliable pressure of the water supply system.

[0009] In one embodiment of the present invention, the signal control unit includes: a superposition calculation subunit, used to superimpose and calculate the water supply pressure rise values ​​corresponding to all height levels to obtain the main pipeline underpressure value; and a monitoring and control subunit, used to monitor the underpressure value of the main pipeline underpressure threshold; when the main pipeline underpressure value is less than the underpressure threshold, no action is taken; when the main pipeline underpressure value is greater than the underpressure threshold, a corresponding frequency conversion control signal is generated according to the main pipeline underpressure value to control the water supply of the frequency conversion water pump corresponding to the main pipeline.

[0010] In one embodiment of the present invention, the anomaly analysis unit includes: a data retrieval subunit, used to obtain the controlled sub-supply pressure corresponding to each supply height under different controlled main supply pressures during the process of adjusting the real-time main supply pressure to the controlled main supply pressure according to the supply pressure rise value; a theoretical calculation subunit, used to retrieve the pressure loss function corresponding to each supply height based on each controlled main supply pressure to obtain the theoretical sub-supply pressure corresponding to each supply height; a difference calculation subunit, used to calculate the difference between the controlled sub-supply pressure and the theoretical sub-supply pressure corresponding to different controlled main supply pressures at each supply height to obtain a pressure difference value; a curve generation subunit, used to generate a curve showing the difference between the pressure difference value and the corresponding controlled main supply pressure based on the pressure difference value and the corresponding controlled main supply pressure; and a curve analysis subunit, used to perform main pipeline anomaly analysis based on the difference change curve to obtain analysis results.

[0011] In one embodiment of the present invention, the curve analysis subunit includes: a section detection module, used to detect abnormal blockages in the difference change curves corresponding to each water supply height, and obtain all water supply heights corresponding to the abnormal difference change curves, forming abnormal sections; and a compensation analysis module, used to perform combined compensation analysis by adding water supply pressure values ​​with different blockage degrees to the corresponding pressure loss function according to the abnormal sections and the corresponding difference change curves, and obtain the blocked water supply height segments and the corresponding blockage degrees as analysis results.

[0012] In one embodiment of the present invention, the section detection module includes: a judgment submodule, used to sequentially judge whether the difference change curve corresponding to each water supply height is within the abnormal curve range corresponding to the abnormal blockage; and a detection output submodule, used to extract the continuous water supply height corresponding to the difference change curve if the difference change curve is within the abnormal curve range corresponding to the abnormal blockage, forming an abnormal section; if the difference change curve is not within the abnormal curve range corresponding to the abnormal blockage, then continue to judge whether the difference change curve corresponding to the next water supply height is within the abnormal curve range corresponding to the abnormal blockage.

[0013] In one embodiment of the present invention, the compensation analysis module includes: a sorting submodule, used to sort the difference change curves according to the water supply height order to obtain a curve sequence; a curve comparison submodule, used to compare the first difference change curve in the curve sequence with the blockage curves corresponding to different blockage degrees at the corresponding water supply height in the blockage curve library; a compensation update submodule, used to, when a target blockage curve corresponding to the first difference change curve is found, sequentially compensate and update other difference change curves in the curve sequence with the differential pressure compensation value of each water supply height corresponding to the target blockage curve to obtain an abnormal update curve; detect the abnormal update curve by the abnormal curve range corresponding to the abnormal blockage; when an abnormal blockage occurs... If the constantly updated curve still exists within the range of abnormal curves corresponding to the abnormal blockage, the process of comparing the abnormal updated curve with each blockage curve in the blockage curve library corresponding to the water supply height continues until the compensated and updated abnormal updated curve no longer exists within the range of abnormal curves corresponding to the abnormal blockage. The abnormal curve combination corresponding to each water supply height is output, and each abnormal curve combination includes multiple abnormal curves. The extraction output submodule is used to extract the water supply height at which each abnormal curve first appears in the abnormal curve combination and the water supply height above it, as the blockage water supply height segment corresponding to each abnormal curve. The blockage water supply height segment and the degree of blockage of the abnormal curve corresponding to the blockage water supply height segment are used as the analysis result.

[0014] To achieve the above and other related objectives, the present invention also provides a water supply service method, characterized by comprising: acquiring real-time water supply pressure at each pipeline node during the water supply process through a data acquisition unit, wherein the water supply pressure includes the real-time main water supply pressure corresponding to the main pipeline and the real-time branch water supply pressure corresponding to each branch water supply height connected to the main pipeline; predicting a water supply pressure increase based on the real-time branch water supply pressure and the real-time main water supply pressure when a drop in real-time branch water supply pressure is detected through a pressure prediction unit, thereby obtaining a water supply pressure increase value; generating a variable frequency control signal based on the water supply pressure increase value through a signal control unit to control the water supply of the variable frequency water supply pump corresponding to the main pipeline; performing anomaly analysis on the main pipeline during the water supply control process through an anomaly analysis unit based on the main pipeline's controlled main water supply pressure, the water supply pressure increase value, and the controlled branch water supply pressure at each water supply height, thereby obtaining analysis results; and providing a service early warning unit for issuing a water supply service early warning based on the analysis results.

[0015] The beneficial effects of this invention are as follows: The water supply service system and method proposed in this invention obtain the real-time water supply pressure corresponding to each water supply pipeline node. When a drop in real-time branch water supply pressure is detected, it indicates that there is water usage in the branch pipeline at the corresponding height level. By using the dropped real-time branch water supply pressure in combination with the real-time main water supply pressure near the variable frequency water supply pump, the required increase in water supply pressure for the main pipeline can be predicted. Based on the increase in water supply pressure, a variable frequency control signal is generated to control the variable frequency water supply pump corresponding to the main pipeline. This allows the variable frequency water supply pump to pump water to the main pipeline based on the variable frequency control signal, thereby increasing the water supply pressure of the main pipeline until it reaches the water supply pressure corresponding to each water supply height, thus ensuring the water supply needs of each water supply height. Simultaneously, during water supply control, by adjusting the water pressure of the main pipeline and branch pipelines using the water supply pressure boost value, the main water supply pressure and the corresponding branch water supply pressure at each water supply height can be obtained at different times. Then, combined with the corresponding water supply pressure boost value, an analysis of blockage anomalies in the main pipeline is performed to determine whether a blockage has occurred and the specific height segment where the blockage has occurred. Therefore, when a blockage occurs in the main pipeline, all blockage height segments and blockage severity are given early warning, reminding relevant personnel to promptly inspect and repair the main pipeline at the relevant water supply height segment. This improves the staff's ability to anticipate pipeline anomalies during water supply service, saves pipeline maintenance costs, and thus enhances the response capability and service quality to water supply service anomalies. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0017] In the attached diagram: Figure 1 This is a structural block diagram of a water supply service system provided in an embodiment of the present invention; Figure 2 This diagram illustrates the process of dividing the water supply height segment when the main pipeline is blocked, as provided in an embodiment of the present invention.

[0018] Figure 3 The diagram shown is a flowchart illustrating a water supply service method provided in an embodiment of the present invention.

[0019] The attached figures are labeled as follows: Data acquisition unit 111; pressure prediction unit 112; signal control unit 113; anomaly analysis unit 114; service early warning unit 115. Detailed Implementation

[0020] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0021] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0022] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the invention. However, it will be apparent to those skilled in the art that embodiments of the invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the invention.

[0023] Please see Figure 1 This invention provides a water supply service system, comprising: a data acquisition unit 111, used to acquire the real-time water supply pressure of each pipeline node during the water supply process, the water supply pressure including the real-time main water supply pressure corresponding to the main pipeline and the real-time branch water supply pressure corresponding to each branch water supply height connected to the main pipeline; a pressure prediction unit 112, used to predict the water supply pressure increase based on the real-time branch water supply pressure and the real-time main water supply pressure when a drop in real-time branch water supply pressure is detected, and obtain the water supply pressure increase value; a signal control unit 113, used to generate a frequency conversion control signal based on the water supply pressure increase value, and control the water supply of the frequency conversion water pump corresponding to the main pipeline; an anomaly analysis unit 114, used to perform anomaly analysis of the main pipeline during the water supply control process based on the main pipeline control pressure, the water supply pressure increase value, and the control branch water supply pressure at each water supply height, and obtain the analysis results; and a service early warning unit 115, used to issue a water supply service early warning based on the analysis results.

[0024] As can be seen from the above, during the water supply service process, water pressure sensors can be installed on the main water supply line near the variable frequency water pump and on the branch lines at various water supply heights (such as different floors). This allows the data acquisition unit 111 to obtain the real-time water supply pressure at each pipeline node. The pressure prediction unit 112 can then detect a drop in real-time water supply pressure, indicating that water is being used on the corresponding floor level. Therefore, by utilizing the reduced real-time branch water supply pressure and combining it with the real-time main water supply pressure near the variable frequency water supply pump, the required increase in water supply pressure for the main pipeline can be predicted. This increase in water supply pressure is then sent to the signal control unit 113. Based on this increase in water supply pressure, the signal control unit 113 generates a variable frequency control signal to control the corresponding variable frequency water supply pump on the main pipeline. This causes the variable frequency water supply pump to pump water to the main pipeline based on the variable frequency control signal, increasing the water supply pressure until it reaches the increase in water supply pressure corresponding to each water supply height, thus ensuring the water supply demand at each water supply height. Simultaneously, during the water supply control process, when the anomaly analysis unit 114 adjusts the water pressure of the main pipeline and branch pipelines using the increase in water supply pressure, it can simultaneously acquire the controlled main water supply pressure at different times and the controlled branch water supply pressure at each water supply height. Then, by combining the corresponding increase in water supply pressure, it performs anomaly analysis on the main pipeline to determine whether a blockage anomaly has occurred and the specific height segment where the blockage anomaly has occurred. Finally, when a main pipeline blockage occurs, the service early warning unit 115 will issue warnings for all blockage heights and degrees, reminding relevant staff to promptly inspect and repair the main pipeline at the relevant water supply height. This improves staff's ability to anticipate pipeline abnormalities during water supply services, saves pipeline maintenance costs, and enhances the response capability and service quality to water supply service anomalies.

[0025] In addition, the service warning unit 115 is also used to allow water supply service warnings to be discontinued and water supply services to continue when the analysis results show no abnormalities.

[0026] In the water supply service system of the present invention, the pressure prediction unit 112 may further include: a coefficient query subunit, used to find the target pressure loss function between the branch water supply pressure and the main water supply pressure corresponding to the target water supply height in a pre-constructed pressure loss function relationship table, the pressure loss function relationship table including multiple pressure loss functions between the branch water supply pressure and the main water supply pressure corresponding to the water supply height; and a pressure rise prediction subunit, used to perform water supply pressure rise prediction based on the reliable branch water supply pressure, real-time branch water supply pressure, real-time main water supply pressure and target pressure loss function corresponding to the target water supply height, to obtain the water supply pressure rise value.

[0027] When predicting the water supply pressure increase, the pressure prediction unit 112 can promptly retrieve the pressure loss function relationship table through the coefficient query subunit when it detects a drop in the real-time water supply pressure. Using the target water supply height corresponding to the real-time water supply pressure, it can find the target pressure loss function corresponding to the target water supply height in the pressure loss function relationship table. The target pressure loss function corresponding to each water supply height can be used to represent the mutual conversion relationship between the water supply pressure and the main water supply pressure corresponding to each water supply height. After obtaining the target pressure loss function, the pressure prediction subunit can use the reliable sub-supply pressure, real-time sub-supply pressure, real-time main supply pressure, and target pressure loss function corresponding to the target supply height to convert and analyze the reliable sub-supply pressure and real-time sub-supply pressure to the corresponding main supply pressure. This allows for further determination of the water supply pressure increase value required for the main pipeline. The signal control unit 113 then determines whether to activate the variable frequency water pump based on the water supply pressure increase value corresponding to each supply height to complete the main pipeline water supply pressure increase control. In other words, if the pressure can still be supplied by the pressure tank after all the water supply pressure increase values ​​are added, the variable frequency water pump does not need to be activated. Conversely, if the main pipeline underpressure value after all the water supply pressure increase values ​​are added is greater than the underpressure threshold, it indicates that the pressure tank cannot provide sufficient pressure, and the variable frequency water pump needs to be activated to supplement the water supply pressure.

[0028] In the water supply service system of the present invention, the pressure prediction unit 112 may further include a table building subunit; the table building subunit includes: a classification module, used to obtain the test sub-water pressure corresponding to different test main water supply pressures at each water supply height under the initial water supply state; a coefficient extraction module, used to obtain the pressure loss function corresponding to each water supply height based on the test sub-water pressures corresponding to different test main water supply pressures at the same water supply height; and a table building module, used to establish a pressure loss function relationship table of the water supply process based on the pressure loss function corresponding to each water supply height.

[0029] The pressure loss function relationship table can be constructed using a table creation sub-unit. Specifically, pressure tests can be conducted on the main pipelines and branch pipelines in use first. The classification module can then be used to obtain the corresponding test branch water supply pressures at various water supply heights under different test main water supply pressures during the initial water supply state. Then, based on each water supply height, the corresponding pressure loss function can be extracted using a coefficient extraction module. In other words, based on multiple test branch water supply pressures formed by different test main water supply pressures at the same water supply height for the corresponding branch pipelines, a fitted linear equation between the test main water supply pressure and the test branch water supply pressure can be found using, for example, the least squares method. This equation serves as the pressure loss function between the test main water supply pressure and the test branch water supply pressure. The formula can be expressed as follows: , Represents the pressure loss function The slope, Represents the pressure loss function The constant term, This indicates the test water supply pressure. This indicates a test of the main water supply pressure. This represents the antiderivative used to solve for the test main water supply pressure, and it can be used to... It is expressed as the inverse function of the original function used to solve for the test water supply pressure, that is... Therefore, the pressure loss function relationship table of the water supply process can be established through the table building module based on the pressure loss function corresponding to each water supply height.

[0030] In the pressure prediction unit 112, the pressure boost prediction subunit may further include: a first pressure module, used to calculate the corresponding main water supply theoretical pressure based on the real-time branch water supply pressure and the target pressure loss function corresponding to the target water supply height; a loss calculation module, used to obtain the water supply pressure loss rate based on the main water supply theoretical pressure and the real-time main water supply pressure; a second pressure module, used to calculate the corresponding main water supply intermediate pressure based on the branch water supply reliable pressure and the target pressure loss function corresponding to the target water supply height; a loss processing module, used to obtain the main water supply reliable pressure based on the main water supply intermediate pressure and the water supply pressure loss rate; and a pressure boost output module, used to obtain the water supply pressure boost value based on the main water supply reliable pressure and the real-time main water supply pressure.

[0031] The formula for calculating the water supply pressure increase is as follows: ; Indicates the water pressure increase value. This represents the target pressure loss function corresponding to the target water supply height. Indicates the reliable pressure of the main water supply. Indicates the real-time main water supply pressure. Indicates the intermediate pressure of the main water supply. Indicates the water supply pressure loss rate. Indicates the theoretical pressure of the main water supply. Indicates real-time water supply pressure. This indicates the reliable pressure of the water supply system.

[0032] To calculate the water supply pressure increase, the target pressure loss function corresponding to the target water supply height can be retrieved. Then, the first pressure module, based on the real-time water supply pressure and the target pressure loss function, uses a formula... The theoretical pressure of the main water supply corresponding to the target water supply height is calculated. Based on the theoretical pressure and real-time main water supply pressure, the loss calculation module uses the formula... This is used to calculate the water supply pressure loss rate during the current water supply process. Then, the second pressure module, based on pre-set reliable water supply pressure and standard pressure loss functions, uses the formula... The intermediate pressure of the main water supply that needs further adjustment is calculated. Then, the loss processing module uses the formula based on the intermediate pressure of the main water supply and the water supply pressure loss rate. The reliable main water supply pressure is determined for further adjustment of the intermediate pressure of the main water supply. Finally, based on the reliable main water supply pressure and the real-time main water supply pressure, the booster output module uses the formula... The final water supply pressure boost value for regulating the main pipeline pressure is determined by the above method. The water supply pressure boost value calculated in the above method can accurately regulate the water supply pressure at each water supply height to above the demand pressure, ensuring the user's water demand. At the same time, it is also convenient to determine whether there is any blockage in the main pipeline based on the water supply pressure boost value regulation process.

[0033] In the water supply service system of the present invention, the signal control unit 113 may further include: a superposition calculation subunit, used to superimpose and calculate the water supply pressure rise values ​​corresponding to all height levels to obtain the main pipeline underpressure value; and a monitoring and control subunit, used to monitor the underpressure value of the main pipeline underpressure threshold; when the main pipeline underpressure value is less than the underpressure threshold, no action is taken; when the main pipeline underpressure value is greater than the underpressure threshold, a corresponding frequency conversion control signal is generated according to the main pipeline underpressure value to control the water supply of the frequency conversion water pump corresponding to the main pipeline.

[0034] During the water supply control process, the signal control unit 113 can obtain the water supply pressure rise values ​​corresponding to all height levels through the superposition calculation subunit. Then, the values ​​are superimposed to calculate the undervoltage value of the entire main pipeline, as shown in the formula: , This indicates the undervoltage value of the main pipeline. The monitoring and control subunit then compares this undervoltage value with an undervoltage threshold. If the undervoltage value is less than the threshold, no action is taken, and pressure can continue to be supplied through the pressure tank. However, if the undervoltage value is greater than the threshold, it indicates that the pressure tank cannot provide sufficient pressure. In this case, a corresponding variable frequency control signal is generated based on the undervoltage value to control the motor power of the variable frequency water pump, thereby regulating the pumping speed and controlling the water supply to the main pipeline. It is important to note that to ensure the overall water supply pressure of the main pipeline, the generation of the variable frequency control signal for the variable frequency water pump requires the undervoltage value of the main pipeline to be obtained.

[0035] In the water supply service system of the present invention, the anomaly analysis unit 114 may further include: a data retrieval subunit, used to obtain the control sub-supply pressure corresponding to each water supply height under different control main water supply pressures during the process of adjusting the real-time main water supply pressure to the control main water supply pressure according to the water supply pressure rise value; a theoretical calculation subunit, used to retrieve the pressure loss function corresponding to each water supply height based on each control main water supply pressure to obtain the sub-supply theoretical pressure corresponding to each water supply height; a difference calculation subunit, used to calculate the difference between the control sub-supply pressure and the sub-supply theoretical pressure corresponding to different control main water supply pressures at each water supply height to obtain the pressure difference; a curve generation subunit, used to generate a curve of pressure difference variation with control main water supply pressure based on the pressure difference and the corresponding control main water supply pressure; and a curve analysis subunit, used to perform main pipeline anomaly analysis based on the difference variation curve to obtain the analysis results.

[0036] During the anomaly analysis of the main pipeline, the anomaly analysis unit 114 can, through the data retrieval subunit, acquire the controlled branch water supply pressure corresponding to each water supply height under different controlled main water supply pressures monitored by the water pressure sensors of the main pipeline and branch pipelines, during the process of adjusting the real-time main water supply pressure to the controlled main water supply pressure according to the water supply pressure rise value. Then, the theoretical calculation subunit calculates the theoretical pressure of the branch water supply corresponding to each water supply height based on each controlled main water supply pressure and the pressure loss function corresponding to each water supply height. For example, the inverse function of the original function used to solve for the test branch water supply pressure can be used. The theoretical pressure of the sub-supply water at each supply height is calculated. Then, the difference calculation subunit calculates the difference between the controlled sub-supply water pressure monitored by the pressure sensor and the theoretical sub-supply water pressure at the corresponding supply height. This difference is determined by subtracting the controlled sub-supply water pressure from the theoretical sub-supply water pressure. The curve generation subunit then generates a curve showing the pressure difference as the controlled main supply water pressure changes, based on the pressure difference at each supply height and the corresponding controlled main supply water pressure. Finally, the curve analysis subunit performs main pipeline anomaly analysis on the difference curve to identify specific sections and degrees of blockage in the main pipeline. This allows staff to promptly clear blockages in the main pipeline based on the analysis results, ensuring the reliability of the water supply service.

[0037] In the anomaly analysis unit 114, the curve analysis subunit may further include: a section detection module, used to detect abnormal blockages in the difference change curves corresponding to each water supply height, to obtain all water supply heights corresponding to the abnormal difference change curves, forming abnormal sections; and a compensation analysis module, used to add water supply pressure values ​​with different blockage degrees to the corresponding pressure loss function according to the abnormal sections and the corresponding difference change curves, to perform combined compensation analysis, to obtain the blocked water supply height segments and the corresponding blockage degree as the analysis results.

[0038] In determining the blocked water supply height segments and corresponding blockage levels in the main pipeline through the curve analysis subunit, the segment detection module can detect abnormal blockages by analyzing the difference curves corresponding to each water supply height. This identifies the abnormal blockages appearing in all the difference curves and groups the abnormal segments based on the consecutive occurrences of these abnormal blockages. Furthermore, the compensation analysis module combines the abnormal segments and the corresponding difference curves, adding pre-set water supply pressure values ​​of different blockage levels to the corresponding pressure loss function for combined compensation analysis. This determines the blocked water supply height segments and corresponding blockage levels corresponding to the abnormal blockages, providing early warnings during the water supply service process.

[0039] In the curve analysis subunit, the section detection module may further include: a judgment submodule, used to sequentially judge whether the difference change curve corresponding to each water supply height is within the abnormal curve range corresponding to the abnormal blockage; and a detection output submodule, used to extract the continuous water supply height corresponding to the difference change curve if the difference change curve is within the abnormal curve range corresponding to the abnormal blockage, forming an abnormal section; if the difference change curve is not within the abnormal curve range corresponding to the abnormal blockage, then continue to judge whether the difference change curve corresponding to the next water supply height is within the abnormal curve range corresponding to the abnormal blockage.

[0040] In identifying abnormal sections, an abnormal curve range that satisfies all abnormal curves can be constructed based on the abnormal curves at different water supply heights caused by blockage. Then, by determining whether the difference change curves corresponding to each water supply height are within the abnormal curve range corresponding to the abnormal blockage, if the difference change curves are within the range, the detection output submodule extracts the continuous water supply heights corresponding to the difference change curves, i.e., adjacent water supply heights, to form the abnormal section. If the difference change curves are not within the range corresponding to the abnormal blockage, the detection output submodule continues to determine whether the difference change curves corresponding to the next water supply height are within the range, until the difference change curves corresponding to all water supply heights have been determined.

[0041] In the curve analysis subunit, the compensation analysis module may further include: a sorting submodule, used to sort the differential change curves according to the water supply height to obtain a curve sequence; a curve comparison submodule, used to compare the first differential change curve in the curve sequence with the blockage curves corresponding to different blockage degrees at the corresponding water supply height in the blockage curve library; a compensation update submodule, used to, when a target blockage curve corresponding to the first differential change curve is found, sequentially compensate and update other differential change curves in the curve sequence with the differential pressure compensation value of each water supply height corresponding to the target blockage curve to obtain an abnormal update curve; and to detect the abnormal update curve by the abnormal curve range corresponding to the abnormal blockage. When the abnormal update curve still exists within the range of abnormal curves corresponding to the abnormal blockage, the process continues to compare the abnormal update curve with each blockage curve in the blockage curve library corresponding to the water supply height, until the compensated and updated abnormal update curve no longer exists within the range of abnormal curves corresponding to the abnormal blockage. The abnormal curve combination corresponding to each water supply height is output, and each abnormal curve combination includes multiple abnormal curves. The extraction output submodule is used to extract the water supply height at which each abnormal curve first appears in the abnormal curve combination and the water supply height above it, as the blockage water supply height segment corresponding to each abnormal curve. The blockage water supply height segment and the degree of blockage of the abnormal curve corresponding to the blockage water supply height segment are used as the analysis result.

[0042] When performing compensation analysis on the difference change curves in the compensation analysis module, the sorting submodule can first sort the difference change curves according to the water supply height from the variable frequency water supply pump, thus obtaining a curve sequence composed of difference change curves. The curve comparison submodule, in ascending order of water supply height, first compares the first difference change curve in the curve sequence with the blockage curves corresponding to different blockage degrees at the corresponding water supply height in the blockage curve library. When a target blockage curve corresponding to the first difference change curve is found, the pressure difference compensation value for each water supply height corresponding to the target blockage curve is used to sequentially compensate and update the other difference change curves in the curve sequence. That is, the pressure difference of each other difference change curve corresponding to the corresponding water supply height is subtracted from the corresponding pressure difference compensation value to calculate the updated pressure difference value. Based on the updated pressure difference value and the corresponding main water supply pressure, the abnormal update curves corresponding to each other difference change curve are obtained. The pressure difference compensation value for each water supply height can be pre-calibrated based on the blockage degree corresponding to the abnormal curve.

[0043] Subsequently, for each abnormal update curve, further detection is performed using the abnormal curve range corresponding to the abnormal blockage. If the abnormal update curve still exists within the abnormal curve range corresponding to the abnormal blockage, it indicates that the blockage is caused by more than one blocked water supply height segment. Therefore, it is necessary to continue comparing the abnormal update curve with each blockage curve in the blockage curve library corresponding to the water supply height until the compensated and updated abnormal update curve no longer exists within the abnormal curve range corresponding to the abnormal blockage. The abnormal curve combination corresponding to each water supply height is then output to comprehensively cover different degrees of blockage in each blocked water supply height segment through multiple abnormal update curve combinations. The degree of blockage for each blocked water supply height segment and the corresponding abnormal curve is then output as the analysis result. The service early warning unit 115 then outputs the corresponding analysis results to issue a water supply service early warning, promptly notifying staff to clear the corresponding blocked water supply height segment and ensuring responsiveness and service quality during water supply service anomalies.

[0044] Please see Figure 2 The variable frequency water supply pump can supply water to different floors at heights h1, h2, h3, and h4 via the main pipeline. The 0-h1 segment corresponds to the normal water supply height. The h1-h2 segment, due to blockage, corresponds to blocked water supply height segment 1. The h2-h3 segment, also affected by the blockage in h1-h2, can be considered blocked water supply height segment 1. The h2-h3 segment, due to blockage, corresponds to blocked water supply height segment 2. In this blocked water supply height segment 2, it is affected not only by the blockage in h2-h3 but also by the blockage in h1-h2. Of course, the water supply height can also be in other segmented forms, and each water supply height segment can also experience other forms of blockage.

[0045] Please see Figure 3 The present invention also provides a water supply service method, comprising: The real-time water supply pressure of each pipeline node during the water supply process is obtained through the data acquisition unit 111. The water supply pressure includes the real-time main water supply pressure corresponding to the main pipeline and the real-time branch water supply pressure corresponding to each water supply height branch pipeline connected to the main pipeline. When a drop in real-time water supply pressure is detected by the pressure prediction unit, the water supply pressure rise is predicted based on the real-time water supply pressure and the real-time main water supply pressure, and the water supply pressure rise value is obtained. The signal control unit 113 generates a frequency conversion control signal based on the water supply pressure increase value to control the water supply of the frequency conversion water pump corresponding to the main pipeline. During the water supply control process, the anomaly analysis unit 114 performs anomaly analysis on the main water supply line based on the main water supply pressure, water supply pressure rise value, and the sub-water supply pressure at each water supply height, and obtains the analysis results. The service early warning unit 115 is used to issue early warnings for water supply services based on the analysis results.

[0046] In summary, the water supply service system and method disclosed in this invention obtains the real-time water supply pressure corresponding to each water supply pipeline node. When a drop in real-time branch water supply pressure is detected, it indicates that there is water usage in the corresponding height level branch pipeline. By utilizing the dropped real-time branch water supply pressure and combining it with the real-time main water supply pressure near the variable frequency water supply pump, the required increase in water supply pressure for the main pipeline can be predicted. Based on the increase in water supply pressure, a variable frequency control signal is generated to control the variable frequency water supply pump corresponding to the main pipeline. This allows the variable frequency water supply pump to pump water to the main pipeline based on the variable frequency control signal, causing the water supply pressure in the main pipeline to rise until it reaches the water supply pressure value corresponding to each water supply height, thus ensuring the water supply demand at each water supply height. Simultaneously, during water supply control, by adjusting the water pressure of the main pipeline and branch pipelines using the water supply pressure boost value, the main water supply pressure and the corresponding branch water supply pressure at each water supply height can be obtained at different times. Then, combined with the corresponding water supply pressure boost value, an analysis of blockage anomalies in the main pipeline is performed to determine whether a blockage has occurred and the specific height segment where the blockage has occurred. Therefore, when a blockage occurs in the main pipeline, all blockage height segments and blockage severity are given as early warnings, reminding relevant personnel to promptly inspect and repair the main pipeline at the relevant water supply height segment. This improves the staff's ability to anticipate pipeline anomalies during water supply services, saves pipeline maintenance costs, and thus enhances the responsiveness and service quality of water supply services. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and has high industrial application value.

[0047] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A water supply service system, characterized in that, include: The data acquisition unit is used to acquire the real-time water supply pressure of each pipeline node during the water supply process. The water supply pressure includes the real-time main water supply pressure corresponding to the main pipeline and the real-time branch water supply pressure corresponding to each water supply height branch pipeline connected to the main pipeline. The pressure prediction unit is used to predict the water supply pressure increase based on the real-time sub-water supply pressure and the real-time main water supply pressure when the real-time sub-water supply pressure is detected to decrease, and to obtain the water supply pressure increase value. The signal control unit is used to generate a frequency conversion control signal based on the water supply pressure increase value, and to control the water supply of the frequency conversion water supply pump corresponding to the main pipeline. The anomaly analysis unit is used to perform anomaly analysis on the main water supply line during the water supply control process, based on the main water supply pressure, the water supply pressure rise value, and the sub-water supply pressure at each water supply height, and to obtain the analysis results. as well as The service early warning unit is used to issue water supply service early warnings based on the analysis results.

2. The water supply service system according to claim 1, characterized in that, The pressure prediction unit includes: The coefficient query subunit is used to find the target pressure loss function between the branch water supply pressure and the main water supply pressure corresponding to the target water supply height in a pre-built pressure loss function relationship table, based on the target water supply height corresponding to the real-time branch water supply pressure. The pressure loss function relationship table includes multiple pressure loss functions between the branch water supply pressure and the main water supply pressure corresponding to various water supply heights. The pressure rise prediction subunit is used to predict the water supply pressure rise based on the reliable water supply pressure corresponding to the target water supply height, the real-time water supply pressure, the real-time main water supply pressure, and the target pressure loss function, and obtain the water supply pressure rise value.

3. The water supply service system according to claim 2, characterized in that, The pressure prediction unit also includes a table creation subunit; The table creation subunit includes: The classification module is used to obtain the test sub-water supply pressure corresponding to different test main water supply pressures at each water supply height under the initial water supply state; The coefficient extraction module is used to obtain the pressure loss function corresponding to each water supply height based on the test sub-water supply pressure corresponding to different test main water supply pressures at the same water supply height; and The table creation module is used to establish a pressure loss function relationship table for the water supply process based on the pressure loss function corresponding to each water supply height.

4. The water supply service system according to claim 2, characterized in that, The boost prediction subunit includes: The first pressure module is used to calculate the corresponding main water supply theoretical pressure based on the real-time sub-water supply pressure and the target pressure loss function corresponding to the target water supply height. The loss calculation module is used to obtain the water supply pressure loss rate based on the theoretical pressure of the main water supply and the real-time pressure of the main water supply. The second pressure module is used to calculate the corresponding main water supply intermediate pressure based on the reliable water supply pressure of the branch water supply and the target pressure loss function corresponding to the target water supply height. The loss processing module is used to obtain the reliable pressure of the main water supply based on the intermediate pressure of the main water supply and the water supply pressure loss rate; and The boost output module is used to obtain the water supply boost value based on the main water supply reliable pressure and the real-time main water supply pressure; The formula for calculating the water supply pressure increase is as follows: ； Indicates the water pressure increase value. This represents the target pressure loss function corresponding to the target water supply height. Indicates the reliable pressure of the main water supply. Indicates the real-time main water supply pressure. Indicates the intermediate pressure of the main water supply. Indicates the water supply pressure loss rate. Indicates the theoretical pressure of the main water supply. Indicates real-time water supply pressure. This indicates the reliable pressure of the water supply system.

5. The water supply service system according to claim 1, characterized in that, The signal control unit includes: The superposition calculation subunit is used to superimpose the water supply pressure increase values ​​corresponding to all height levels to obtain the main pipeline underpressure value; and The monitoring and control subunit is used to monitor the undervoltage value of the main pipeline. When the undervoltage value of the main pipeline is less than the undervoltage threshold, no action is taken. When the undervoltage value of the main pipeline is greater than the undervoltage threshold, a corresponding frequency conversion control signal is generated based on the undervoltage value of the main pipeline to control the water supply of the frequency conversion water pump corresponding to the main pipeline.

6. The water supply service system according to claim 1, characterized in that, The anomaly analysis unit includes: The data retrieval subunit is used to obtain the control sub-water pressure corresponding to each water supply height under different control main water pressures during the process of adjusting the real-time main water supply pressure to the control main water supply pressure according to the water supply pressure increase value. The theoretical calculation subunit is used to retrieve the pressure loss function corresponding to each water supply height based on each of the main water supply pressures, so as to obtain the theoretical pressure of the sub-water supply corresponding to each water supply height. The difference calculation subunit is used to calculate the difference between the controlled sub-supply pressure and the theoretical sub-supply pressure corresponding to different controlled main water supply pressures at each water supply height, to obtain the pressure difference; and The curve generation subunit is used to generate a curve showing the difference between the pressure difference and the corresponding main water supply pressure, based on the pressure difference and the corresponding main water supply pressure. The curve analysis subunit is used to perform main pipeline anomaly analysis based on the difference change curve and obtain the analysis results.

7. The water supply service system according to claim 6, characterized in that, The curve analysis subunit includes: The section detection module is used to detect abnormal blockages in the difference change curves corresponding to each water supply height, obtain all water supply heights corresponding to the abnormal difference change curves, and form abnormal sections; and The compensation analysis module is used to perform combined compensation analysis by adding water supply pressure values ​​with different degrees of blockage to the corresponding pressure loss function based on the abnormal section and the corresponding difference change curve, and obtain the blocked water supply height section and the corresponding degree of blockage as the analysis result.

8. The water supply service system according to claim 7, characterized in that, The segment detection module includes: The judgment submodule is used to sequentially determine whether the difference change curves corresponding to each water supply height are within the range of the abnormal curves corresponding to the abnormal blockage; and The detection output submodule is used to extract the continuous water supply heights corresponding to the difference change curves if the difference change curves are within the abnormal curve range corresponding to the abnormal blockage, and form the abnormal segment; if the difference change curves are not within the abnormal curve range corresponding to the abnormal blockage, it continues to determine whether the difference change curves corresponding to the next water supply heights are within the abnormal curve range corresponding to the abnormal blockage.

9. The water supply service system according to claim 7, characterized in that, The compensation analysis module includes: The sorting submodule is used to sort the difference change curves according to the water supply height order to obtain a curve sequence; The curve comparison submodule is used to compare the first difference change curve in the curve sequence with the blockage curves corresponding to different blockage degrees at the corresponding water supply height in the blockage curve library; The compensation update submodule is used to, when a target blockage curve corresponding to the first difference change curve is found, sequentially compensate and update the other difference change curves in the curve sequence with the differential pressure compensation value of each water supply height corresponding to the target blockage curve to obtain an abnormal update curve; detect the abnormal update curve by the abnormal curve range corresponding to the abnormal blockage; when the abnormal update curve still exists within the abnormal curve range corresponding to the abnormal blockage, continue to compare the abnormal update curve with each blockage curve in the blockage curve library corresponding to the water supply height, until the compensated and updated abnormal update curve does not exist within the abnormal curve range corresponding to the abnormal blockage, and output the abnormal curve combination corresponding to each water supply height, where each abnormal curve combination includes multiple abnormal curves; The output extraction submodule is used to extract the water supply height at the first occurrence of each abnormal curve in the abnormal curve combination and the water supply height above it, as the blocked water supply height segment corresponding to each abnormal curve, and the blocked water supply height segment and the degree of blockage of the abnormal curve corresponding to the blocked water supply height segment are used as the analysis result.

10. A water supply service method, characterized in that, include: The real-time water supply pressure of each pipeline node during the water supply process is obtained through the data acquisition unit. The water supply pressure includes the real-time main water supply pressure corresponding to the main pipeline and the real-time branch water supply pressure corresponding to each water supply height branch pipeline connected to the main pipeline. When the real-time water supply pressure drops, the pressure prediction unit predicts the water supply pressure increase based on the real-time water supply pressure and the real-time main water supply pressure, and obtains the water supply pressure increase value. The signal control unit generates a frequency conversion control signal based on the water supply pressure increase value to control the water supply of the frequency conversion water pump corresponding to the main pipeline. During the water supply control process, the anomaly analysis unit performs anomaly analysis on the main water supply line based on the main water supply pressure, the water supply pressure rise value, and the sub-water supply pressure at each water supply height, and obtains the analysis results. The service early warning unit is used to issue water supply service early warnings based on the analysis results.

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