Water pump pressure real-time monitoring system

Abstract

The invention discloses a water pump pressure real-time monitoring system, and relates to the technical field of water pump monitoring, the water pump pressure real-time monitoring system comprises a processing module, a parameter acquisition module and a water pump execution module, the parameter acquisition module is used for obtaining water pump working data and transmitting the water pump working data to the processing module for calculation and storage, and the water pump working data comprises real-time water pressure and water outlet quality data; the processing module presets an index water pressure Pt and index effluent quality data Qt based on a preset water pump working requirement, and after receiving the real-time water pressure and effluent quality data, the processing module calculates a working state value W through a formula. The multiple water outlet monitoring units are arranged at the water outlet of the water outlet pipe of the water pump in the diameter direction, comprehensive collection of water pressure and flow velocity data of the water pump at different heights is achieved, compared with a traditional single-point monitoring mode, more complete water flow state information can be obtained, and the monitoring precision and stability are improved.

Description

Technical Field

[0001] The invention relates to the technical field of water pump monitoring, and in particular to a real-time monitoring system for water pump pressure. Background Art

[0002] As an important equipment for fluid transportation, water pumps are widely used in industries such as industry, agriculture, construction and municipal engineering. The working state of the water pump directly affects the operating efficiency and safety of the system, so real-time monitoring of the water pump pressure is crucial. In the prior art, water pump pressure monitoring usually adopts a single-point measurement method, that is, a single pressure sensor or flow rate sensor is installed at a specific position of the water pump outlet pipe to obtain water pressure and flow rate data during the operation of the water pump, and judge whether the water pump is in normal working condition according to the preset fixed threshold.

[0003] After searching, a Chinese patent (publication number: CN110469496B) discloses a water pump intelligent early warning method and system, which includes: step S1, determining the measuring points according to the structural and functional properties of the water pump, and obtaining the historical data of all the measuring points; grouping the measuring points according to the correlation between the measuring points so that the historical data of each group of measuring points at the same time constitutes a historical data group; setting a filter for filtering out abnormal real-time data; step S2, clustering the historical data group of each group of measuring points to obtain a monitoring model; step S3, obtaining the real-time data of the measuring points, and eliminating the abnormal real-time data through the filter; analyzing the real-time data processed by the filter according to the monitoring model, and then warning the water pump according to the analysis result.

[0004] In the prior art, since the water flow in the water outlet pipe of the water pump is not evenly distributed, the single-point measurement method cannot fully capture the dynamic changes of the water flow, and the water flow at different heights and positions may be affected by factors such as pipeline structure, fluid inertia, eddy effect, etc., resulting in significant differences in water pressure and flow rate at different positions at the same time point. Single-point monitoring cannot reflect the overall working status of the water pump, which can easily lead to misjudgment or missed judgment. Therefore, the present invention proposes a real-time monitoring system for water pump pressure. Summary of the invention

[0005] The purpose of the present invention is to provide a real-time monitoring system for water pump pressure to solve the problems mentioned in the above background technology.

[0006] The present invention can be implemented through the following technical solutions: A real-time monitoring system for water pump pressure, including a processing module, a parameter acquisition module, and a water pump execution module;

[0007] The parameter acquisition module is used to obtain the working data of the water pump and transmit it to the processing module for calculation and storage. The working data of the water pump includes real-time water pressure and water quality data;

[0008] The processing module is based on the preset working requirements of the water pump, and is preset with index water pressure and index water quality data. After receiving the real-time water pressure and water quality data, the processing module removes the units of the real-time water pressure and water quality data and the corresponding index water pressure and water quality data, respectively, and takes the values ​​thereof, and calculates the working state value W through the formula;

[0009] The formula for the working status value is:

[0010]

[0011] Where P r (t1) is the real-time water pressure at time node t1; P t is the index water pressure; Q o (t1+tΔ) is the water quality data at the time node t1+tΔ, where Q is the time delay determined by the water velocity V and the pipe length L, which affects the feedback time from the water pump discharge to the water quality data; t C is the indicator water quality data; p is the weight coefficient of water pressure; C q is the weight coefficient of the effluent quality;

[0012] The processing module is provided with a mapping table, the structure of which includes: working state value, corresponding water pump working state and corresponding water pump adjustment mode;

[0013] After the processing module calculates the working state value of the water pump, based on the mapping table, the processing module selects the water pump adjustment method corresponding to the current working state value and transmits it to the water pump execution module;

[0014] After receiving the adjustment method transmitted by the processing module, the water pump execution module adjusts the working state of the water pump based on the adjustment method.

[0015] A further technical improvement of the present invention is that: the water quality index Q o The method for obtaining comprises the following steps:

[0016] The parameter acquisition module is provided with a plurality of water outlet monitoring units at the water outlet of the water pump outlet pipe along the distribution direction of the water outlet pipe diameter;

[0017] Each water outlet monitoring unit obtains the pressure and flow rate at the corresponding height, and each water outlet monitoring unit removes the corresponding pressure and flow rate from their units to obtain their values, and uses the formula:

[0018] Get the effluent quality index Q o ;

[0019] In the formula, C iis the correction factor of the ith water outlet monitoring unit; P i (h i ) is the i-th water outlet monitoring unit at height h i The pressure measured at the pump outlet will be different due to the height difference. i (h i ) is the i-th water outlet monitoring unit at height h i The measured flow velocity varies with the position of the pipe, and the flow velocity is different at different heights; cosθ i is the velocity component, which represents the projection of the velocity in the flow direction relative to the monitoring unit. If the monitoring unit is perpendicular to the flow direction, the angle θ i The directionality of the flow velocity component is adjusted.

[0020] A further technical improvement of the present invention is that: the parameter acquisition module uses a sliding time window to collect real-time water pressure and water quality data. The sliding time window has a preset time length and continuously slides forward during the operation of the water pump to update the collected data in real time, thereby ensuring the continuity and real-time nature of the data;

[0021] The processing module calculates the mean of the real-time water pressure data based on the data collected in the sliding time window. and the average value of the effluent quality data And the processing module is based on the mean of real-time water pressure data and the average value of the effluent quality data The calculation formula of the working status value is modified. The modified formula is:

[0022]

[0023] A further technical improvement of the present invention is that: the processing module calculates the pressure difference and flow rate difference at the corresponding time water outlet of the water pump outlet pipe based on the pressure and flow rate collected by multiple water outlet monitoring units, and the processing module compares the pressure difference and flow rate difference with the preset water pressure change rate threshold ε1 and flow rate change rate threshold ε2 to determine whether the water pump is abnormal;

[0024] The pressure difference is calculated as:

[0025] In the formula, P(h i ,t) and P(h j ,t) means that at the same time t, the outlet of the water pipe is at different heights h i and h j The pressure measured at the outlet; n is the number of water outlet monitoring units along the diameter of the outlet pipe;

[0026] The flow rate difference is calculated as:

[0027] In the formula, V(h i ,t) and V(h j ,t) means that at the same time t, the outlet of the water pipe is at different heights h i and h j The flow velocity measured at ; n is the number of water outlet monitoring units along the diameter of the outlet pipe.

[0028] A further technical improvement of the present invention is that the method for the processing module to judge the abnormality of the water pump comprises:

[0029] A1: If ΔP avg ≤ε1, and ΔV avg ≤ε2, the water pump is judged to be working normally;

[0030] A2, if ΔP avg >ε1, or ΔV avg >ε2, the water pump is judged to be operating abnormally.

[0031] A further technical improvement of the present invention is that: the processing module uses the pressure and flow rate data obtained by each water outlet monitoring unit to establish a first information library corresponding to the water outlet monitoring unit in time series, and the processing module aligns the first information library of each water outlet monitoring unit on a time axis;

[0032] At the same time, the processing module establishes a second information base in a time series with the acquired real-time water pressure. The second information base is aligned with each first information base in time axis on the basis of water flow delay, that is, the real-time water pressure at the corresponding time node of the second information base matches the pressure and flow rate data at the corresponding time node plus the water flow delay time node in each second information base;

[0033] The processing module establishes a database based on the second information base and each first information base, and subsequently combines the time series prediction model to predict the type and time of possible failure of the water pump.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The present invention arranges multiple water outlet monitoring units along the diameter direction at the water outlet of the water pump outlet pipe to achieve comprehensive collection of water pressure and flow rate data at different heights of the water pump. Compared with the traditional single-point monitoring method, the present invention can obtain more complete water flow state information, improve the accuracy and stability of monitoring, and avoid erroneous judgments caused by local abnormalities or single-point monitoring errors.

[0036] And through the pressure difference and flow rate difference calculation model, the difference of water pressure and flow rate at different heights is calculated, and the evaluation is based on the working state value W of the water pump. It can not only dynamically monitor the changes in water pressure and flow rate, but also identify the abnormal state that may occur in the water pump, so that the system can make accurate judgments based on the actual operation of the water pump and improve the reliability of abnormality detection;

[0037] On the other hand, the processing module of the present invention integrates a mapping table to associate different water pump working state values ​​with corresponding water pump adjustment methods, thereby realizing intelligent water pump control and adjustment. After the system calculates the water pump working state value, it can automatically select the water pump adjustment method that matches the current state, and transmit the adjustment instruction to the water pump execution module to ensure that the water pump is always in the best working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0039] Figure 1 It is a system block diagram of the present invention. DETAILED DESCRIPTION

[0040] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0041] Example 1

[0042] See also Figure 1 As shown, the present invention provides a real-time monitoring system for water pump pressure, including a processing module, a parameter acquisition module, and a water pump execution module;

[0043] The parameter acquisition module is used to obtain the working data of the water pump and transmit it to the processing module for calculation and storage. The working data of the water pump includes real-time water pressure and water quality data;

[0044] The processing module is based on the preset working requirements of the water pump, and is preset with index water pressure and index water quality data. After receiving the real-time water pressure and water quality data, the processing module removes the units and takes the values ​​of the real-time water pressure and water quality data from the corresponding index water pressure and index water quality data, and calculates the working state value W through the formula;

[0045] The formula for the working status value is:

[0046]

[0047] Where P r (t1) is the real-time water pressure at time node t1; P t is the index water pressure; Qo (t1+tΔ) is the water quality data at the time node t1+tΔ, where Q is the time delay determined by the water velocity V and the pipe length L, which affects the feedback time from the water pump discharge to the water quality data; t C is the indicator water quality data; p is the weight coefficient of water pressure; C q is the weight coefficient of the effluent quality;

[0048] Water quality index Q o The method for obtaining comprises the following steps:

[0049] The parameter acquisition module is provided with a plurality of water outlet monitoring units at the water outlet of the water pump outlet pipe along the distribution direction of the water outlet pipe diameter;

[0050] Each water outlet monitoring unit obtains the pressure and flow rate at the corresponding height, and each water outlet monitoring unit removes the corresponding pressure and flow rate from their units to obtain their values, and uses the formula:

[0051] Get the effluent quality index Q o ;

[0052] In the formula, C i is the correction factor of the ith water outlet monitoring unit; P i (h i ) is the i-th water outlet monitoring unit at height h i The pressure measured at the pump outlet will be different due to the height difference. i (h i ) is the i-th water outlet monitoring unit at height h i The measured flow velocity varies with the position of the pipe, and the flow velocity is different at different heights; cosθ i is the velocity component, which represents the projection of the velocity in the flow direction relative to the monitoring unit. If the monitoring unit is perpendicular to the flow direction, the angle θ i It will adjust the directionality of the flow velocity component;

[0053] The processing module is provided with a mapping table, the structure of which includes: working state value, corresponding water pump working state and corresponding water pump adjustment mode;

[0054] After the processing module calculates the working state value of the water pump, based on the mapping table, the processing module selects the water pump adjustment method corresponding to the current working state value and transmits it to the water pump execution module;

[0055] After receiving the adjustment method transmitted by the processing module, the water pump execution module adjusts the working state of the water pump based on the adjustment method.

[0056] Example 2

[0057] A water pump pressure real-time monitoring system, comprising a processing module, a parameter acquisition module, and a water pump execution module;

[0058] The parameter acquisition module is used to obtain the working data of the water pump and transmit it to the processing module for calculation and storage. The working data of the water pump includes real-time water pressure and water quality data;

[0059] The processing module is based on the preset working requirements of the water pump, and is preset with index water pressure and index water quality data. After receiving the real-time water pressure and water quality data, the processing module removes the units and takes the values ​​of the real-time water pressure and water quality data from the corresponding index water pressure and index water quality data, and calculates the working state value W through the formula;

[0060] The parameter acquisition module uses a sliding time window to collect real-time water pressure and water quality data. The sliding time window has a preset time length and keeps sliding forward during the operation of the water pump, updating the collected data in real time to ensure the continuity and real-time nature of the data.

[0061] The processing module calculates the mean of the real-time water pressure data based on the data collected in the sliding time window. and the average value of the effluent quality data in:

[0062]

[0063] Where n is the number of data sampling points in the sliding time window;

[0064] Through the sliding time window technology, the system can effectively smooth out abnormal fluctuations in the short term and ensure the stability of the evaluation results, thereby improving the ability to detect abnormal conditions of the water pump. The continuous update mechanism of the sliding time window ensures the real-time evaluation of the water pump status, and can promptly detect and respond to changes in the working status of the water pump, thereby enhancing the dynamic adjustment capability of the system.

[0065] The calculation formula of working status value is:

[0066]

[0067] Where P r (t1) is the real-time water pressure at time node t1; P t is the index water pressure; Q o (t1+tΔ) is the water quality data at the time node t1+tΔ, where Q is the time delay determined by the water velocity V and the pipe length L, which affects the feedback time from the water pump discharge to the water quality data; tC is the indicator water quality data; p is the weight coefficient of water pressure; C q is the weight coefficient of the effluent quality;

[0068] The processing module is provided with a mapping table, the structure of which includes: working state value, corresponding water pump working state and corresponding water pump adjustment mode;

[0069] After the processing module calculates the working state value of the water pump, based on the mapping table, the processing module selects the water pump adjustment method corresponding to the current working state value and transmits it to the water pump execution module;

[0070] After receiving the adjustment method transmitted by the processing module, the water pump execution module adjusts the working state of the water pump based on the adjustment method.

[0071] Water quality index Q o The method for obtaining comprises the following steps:

[0072] The parameter acquisition module is provided with a plurality of water outlet monitoring units at the water outlet of the water pump outlet pipe along the distribution direction of the water outlet pipe diameter;

[0073] Each water outlet monitoring unit obtains the pressure and flow rate at the corresponding height, and each water outlet monitoring unit removes the corresponding pressure and flow rate from their units to obtain their values, and uses the formula:

[0074] Get the effluent quality index Q o .

[0075] The processing module is provided with a mapping table, the structure of which includes: working state value, corresponding water pump working state and corresponding water pump adjustment mode;

[0076] After the processing module calculates the working state value of the water pump, based on the mapping table, the processing module selects the water pump adjustment method corresponding to the current working state value and transmits it to the water pump execution module;

[0077] After receiving the adjustment method transmitted by the processing module, the water pump execution module adjusts the working state of the water pump based on the adjustment method.

[0078] The processing module uses the pressure and flow rate data obtained by each water outlet monitoring unit to establish a first information library corresponding to the water outlet monitoring unit in time series, and the processing module aligns the first information library of each water outlet monitoring unit on a time axis;

[0079] At the same time, the processing module uses the acquired real-time water pressure to establish a second information library in a time series. The second information library is aligned with the time axis of each first information library on the basis of water flow delay, that is, the real-time water pressure of the corresponding time node of the second information library matches the pressure and flow rate data of the corresponding time node plus the water flow delay time node in each second information library;

[0080] The processing module establishes a database based on the second information base and each of the first information bases, and subsequently combines the time series prediction model to predict the type and time of possible failure of the water pump, so as to perform preventive maintenance in advance and reduce downtime and maintenance costs;

[0081] And based on the comparison of time series data, the processing module can not only determine the current working status of the water pump, but also intelligently adjust the operating parameters of the water pump based on the combination of database and real-time data.

[0082] Example 3

[0083] A water pump pressure real-time monitoring system, comprising a processing module, a parameter acquisition module, and a water pump execution module;

[0084] The parameter acquisition module is used to obtain the working data of the water pump and transmit it to the processing module for calculation and storage. The working data of the water pump includes real-time water pressure and water quality data;

[0085] The processing module is based on the preset working requirements of the water pump, and is preset with index water pressure and index water quality data. After receiving the real-time water pressure and water quality data, the processing module removes the units and takes the values ​​of the real-time water pressure and water quality data from the corresponding index water pressure and index water quality data, and calculates the working state value W through the formula;

[0086] The formula for the working status value is:

[0087]

[0088] Water quality index Q o The method for obtaining comprises the following steps:

[0089] The parameter acquisition module is provided with a plurality of water outlet monitoring units at the water outlet of the water pump outlet pipe along the distribution direction of the water outlet pipe diameter;

[0090] Each water outlet monitoring unit obtains the pressure and flow rate at the corresponding height, and each water outlet monitoring unit removes the corresponding pressure and flow rate from their units to obtain their values, and uses the formula:

[0091] Get the effluent quality index Q o ;

[0092] The processing module is provided with a mapping table, the structure of which includes: working state value, corresponding water pump working state and corresponding water pump adjustment mode;

[0093] After the processing module calculates the working state value of the water pump, based on the mapping table, the processing module selects the water pump adjustment method corresponding to the current working state value and transmits it to the water pump execution module;

[0094] The processing module calculates the pressure difference and flow rate difference at the corresponding time outlet of the water pump outlet pipe based on the pressure and flow rate collected by multiple water outlet monitoring units, and the processing module compares the pressure difference and flow rate difference with the preset water pressure change rate threshold ε1 and flow rate change rate threshold ε2 to determine whether the water pump is abnormal;

[0095] The pressure difference is calculated as:

[0096] In the formula, P(h i ,t) and P(h j ,t) means that at the same time t, the outlet of the water pipe is at different heights h i and h j The pressure measured at the outlet; n is the number of water outlet monitoring units along the diameter of the outlet pipe;

[0097] The flow rate difference is calculated as:

[0098] In the formula, V(h i ,t) and V(h j ,t) means that at the same time t, the outlet of the water pipe is at different heights h i and h j The flow velocity measured at ; n is the number of water outlet monitoring units along the diameter of the outlet pipe.

[0099] The method for the processing module to judge the abnormality of the water pump includes:

[0100] A1: If ΔP avg ≤ε1, and ΔV avg ≤ε2, the water pump is judged to be working normally;

[0101] A2, if ΔP avg >ε1, or ΔV avg >ε2, the water pump is judged to be abnormal. The abnormal working of the water pump includes:

[0102] b1. If ΔP avg Increases within the preset time, and ΔV avg If the changes occur at the same time, it is judged that water hammer occurs in the water pump;

[0103] b2. If ΔPavg In the preset time, ΔV avg If fluctuations occur, it is judged that bubbles or cavitation occur in the water pump;

[0104] b3. If ΔP avg Increases within the preset time, but ΔV avg If the change is not obvious, it is judged to be a pipe blockage or other abnormal flow phenomenon;

[0105] After receiving the adjustment method transmitted by the processing module, the water pump execution module adjusts the working state of the water pump based on the adjustment method.

[0106] The processing module uses the pressure and flow rate data obtained by each water outlet monitoring unit to establish a first information library corresponding to the water outlet monitoring unit in time series, and the processing module aligns the first information library of each water outlet monitoring unit on a time axis;

[0107] At the same time, the processing module uses the acquired real-time water pressure to establish a second information library in a time series. The second information library is aligned with the time axis of each first information library on the basis of water flow delay, that is, the real-time water pressure of the corresponding time node of the second information library matches the pressure and flow rate data of the corresponding time node plus the water flow delay time node in each second information library;

[0108] The processing module establishes a database based on the second information base and each of the first information bases, and subsequently combines the time series prediction model to predict the type and time of possible failure of the water pump, so as to perform preventive maintenance in advance and reduce downtime and maintenance costs;

[0109] And based on the comparison of time series data, the processing module can not only determine the current working status of the water pump, but also intelligently adjust the operating parameters of the water pump based on the combination of database and real-time data.

[0110] The above formulas are all calculated by removing dimensions and taking numerical values. The formula is a formula that is closest to the actual situation obtained by collecting a large amount of data and performing software simulation. The preset parameters and preset thresholds in the formula are set by technical personnel in this field according to actual conditions or obtained by simulating a large amount of data.

[0111] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A real-time monitoring system for water pump pressure, comprising a processing module, a parameter acquisition module, and a water pump execution module, characterized in that: The parameter acquisition module is used to obtain the working data of the water pump and transmit it to the processing module for calculation and storage. The working data of the water pump includes real-time water pressure and water quality data; The processing module is based on the preset pump working requirements, and the preset water pressure P t And indicator water quality data Q t After receiving the real-time water pressure and water quality data, the processing module removes the units of the real-time water pressure and water quality data and the corresponding index water pressure and index water quality data, respectively, and takes the values ​​thereof, and calculates the working state value W through the formula; The formula for the working status value is: Where P r (t1) is the real-time water pressure at time node t1; P t is the index water pressure; Q o (t1+tΔ) is the water quality data at the time node t1+tΔ; tΔ is the time delay; C p is the weight coefficient of water pressure; C q is the weight coefficient of the effluent quality; The processing module is provided with a mapping table, the structure of which includes: working state value, corresponding water pump working state and corresponding water pump adjustment mode; After the processing module calculates the working state value of the water pump, based on the mapping table, the processing module selects the water pump adjustment method corresponding to the current working state value and transmits it to the water pump execution module; After receiving the adjustment method transmitted by the processing module, the water pump execution module adjusts the working state of the water pump based on the adjustment method.

2. A water pump pressure real-time monitoring system according to claim 1, characterized in that: The effluent quality index Q o The method for obtaining comprises the following steps: The parameter acquisition module is provided with a plurality of water outlet monitoring units at the water outlet of the water pump outlet pipe along the distribution direction of the water outlet pipe diameter; Each water outlet monitoring unit obtains the pressure and flow rate at the corresponding height, and each water outlet monitoring unit removes the corresponding pressure and flow rate from their units to obtain their values, and uses the formula: Get the effluent quality index Q o ; In the formula, C i is the correction factor of the ith water outlet monitoring unit; P i (h i ) is the i-th water outlet monitoring unit at height h i The pressure measured at V i (h i ) is the i-th water outlet monitoring unit at height h i Measured flow rate; cosθ i is the flow velocity component.

3. A water pump pressure real-time monitoring system according to claim 1, characterized in that: The parameter acquisition module uses a sliding time window to collect real-time water pressure and water quality data. The sliding time window has a preset time length and continuously slides forward during the operation of the water pump to update the collected data in real time to ensure the continuity and real-time nature of the data; The processing module calculates the mean of the real-time water pressure data based on the data collected in the sliding time window. and the average value of the effluent quality data And the processing module is based on the mean of real-time water pressure data and the average value of the effluent quality data The calculation formula for the working status value is corrected as follows:

4. A water pump pressure real-time monitoring system according to claim 1, characterized in that: The processing module calculates the pressure difference and flow rate difference at the corresponding time outlet of the water pump outlet pipe based on the pressure and flow rate collected by multiple water outlet monitoring units, and compares the pressure difference and flow rate difference with the preset water pressure change rate threshold ε1 and flow rate change rate threshold ε2 to determine whether the water pump is abnormal.

5. A water pump pressure real-time monitoring system according to claim 4, characterized in that: The pressure difference is calculated as: In the formula, P(h i ,t) and P(h j ,t) means that at the same time t, the outlet of the water pipe is at different heights h i and h j The pressure measured at the outlet; n is the number of water outlet monitoring units along the diameter of the outlet pipe; The flow rate difference is calculated as: In the formula, V(h i ,t) and V(h j ,t) means that at the same time t, the outlet of the water pipe is at different heights h i and h j The flow velocity measured at ; n is the number of water outlet monitoring units along the diameter of the outlet pipe.

6. A water pump pressure real-time monitoring system according to claim 5, characterized in that: The method for the processing module to judge the abnormality of the water pump includes: A1: If ΔP avg ≤ε1, and ΔV avg ≤ε2, the water pump is judged to be working normally; A2, if ΔP avg >ε1, or ΔV avg >ε2, it is determined that the water pump is operating abnormally.

7. A water pump pressure real-time monitoring system according to claim 1, characterized in that: The processing module establishes a first information library corresponding to each water outlet monitoring unit according to the pressure and flow rate data obtained by each water outlet monitoring unit in time series, and the processing module aligns the first information libraries of each water outlet monitoring unit on a time axis.

8. A water pump pressure real-time monitoring system according to claim 7, characterized in that: The processing module establishes a second information base in a time series with the acquired real-time water pressure, and the second information base is time-aligned with each first information base based on the water flow delay.

9. A water pump pressure real-time monitoring system according to claim 8, characterized in that: The processing module establishes a database based on the second information base and each first information base, and combines the time series prediction model to predict the type and time of failure of the water pump.

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