Pump station unit health management system based on digital twinning

Abstract

The invention discloses a pump station unit health management system based on digital twinning, and relates to the technical field of pump station management, and the system comprises the following modules: a model building module which obtains pump station topographic data, obtains pump station pipeline data, and builds a pump station simulation model through the pump station topographic data and the pump station pipeline data by using a GIS space model; the pipeline monitoring module is used for acquiring a monitoring value of each section of pipeline, acquiring a pipeline safety value according to the monitoring value of each section of pipeline, acquiring a working value of a pump station unit, drawing a monitoring statistical chart according to the pipeline safety value and the working value of the pump station unit, establishing a historical monitoring database, and incorporating a daily monitoring statistical chart into the historical monitoring database; according to the scheme, the water supply efficiency coefficient is obtained by combining the pipeline safety value and the pump station unit working value in the fault alarm module, and the alarm switch is controlled according to the comparison result of the water supply efficiency coefficient and the water supply efficiency coefficient preset threshold value, so that the situation that the water pressure is increased to quickly supply water to generate misjudgment and give an alarm is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of pump station management, and in particular to a pump station unit health management system based on digital twins. Background Art

[0002] Digital twin technology dynamically links the physical world with the digital world, collects data of physical entities in real time, and applies it to the simulation of digital models to achieve real-time monitoring and control of physical entities; Pump station units play a vital role in water conservancy projects and other fields. They are usually composed of pumps, motors, water pipelines and other ancillary equipment. Pump station units continuously provide reliable power support for various needs. They can efficiently lift water from low places to high places for irrigation, drainage, water supply and other purposes. The operating stability and efficiency of pump station units are directly related to the smooth progress of related projects.

[0003] When supplying water upstream, the pump station pressurizes the water so that it is transported upstream through the water pipeline. The state of the water pipeline affects the water pressure. If the outlet pipe is blocked or damaged and leaks, it is difficult to achieve rapid water supply even with pressurization. At the same time, the water pressure of the water supply upstream will be unstable. The water pressure fluctuation will also cause the sediment, rust and other impurities in the pipeline to be washed away, thereby affecting the water quality of the water supply. However, since the water pipelines of the pump station units are mostly buried underground, manual monitoring and management of the water pipelines is not only inefficient, but also has a certain lag, making it difficult to respond to pipeline blockage or leakage in the first time. To this end, we propose a pump station unit health management system based on digital twins. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the shortcomings of the prior art, the present invention provides a pump station unit health management system based on digital twin to solve the above-mentioned problems in the prior art.

[0005] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: A pump station unit health management system based on digital twins, including the following modules: Model building module, obtains pump station terrain data, obtains pump station pipeline data, and uses GIS spatial model to build pump station simulation model through pump station terrain data and pump station pipeline data; The pipeline monitoring module obtains the monitoring value of each section of the pipeline, obtains the pipeline safety value through the monitoring value of each section of the pipeline, obtains the working value of the pump station unit, draws the monitoring statistics chart through the pipeline safety value and the working value of the pump station unit, establishes a historical monitoring database, and incorporates the daily monitoring statistics chart into the historical monitoring database; The fault alarm module obtains the water supply efficiency coefficient through the pipeline safety value and the working value of the pump station unit, sets a preset threshold of the water supply efficiency coefficient, and controls the switch of the alarm through the comparison result of the water supply efficiency coefficient and the preset threshold of the water supply efficiency coefficient; The fault locking module analyzes the fault location through the monitoring values ​​of each section of the pipeline and marks the location of the fault in the pump station simulation model; The calculation method of the water supply efficiency coefficient in the fault alarm module is as follows:

[0006] Among them, Gs represents the water supply efficiency coefficient, Gz represents the working value of the pump station unit, and Aq represents the pipeline safety value.

[0007] Preferably, the model building module is specifically: Step 1: Obtain the terrain data of the pumping station, build a terrain model of the pumping station through the terrain data of the pumping station, obtain the architectural drawings of the pumping station, and add the building to the terrain model of the pumping station through the architectural drawings of the pumping station to obtain the structural model of the pumping station; Step 2: Obtain the pump station pipeline data and the pump station unit data, and add the pipeline and the pump station unit to the pump station structure model through the pump station pipeline data and the pump station unit data to obtain the primary model of the pump station; Step 3: Obtain the pipeline material and size information, obtain the pump station unit power, correct and mark the pipeline material and size in the pump station primary model based on the pipeline material and size information, mark the pump station unit power in the pump station primary model, and finally obtain the pump station simulation model.

[0008] Preferably, the monitoring value of each section of the pipeline is obtained in the pipeline monitoring module, specifically: the water pressure of each section of the pipeline is obtained, the flow rate of the water flow in each section of the pipeline is obtained, and the soil moisture around each section of the pipeline is obtained, and the monitoring value of each section of the pipeline is obtained through the water pressure of each section of the pipeline, the flow rate of the water flow in each section of the pipeline and the soil moisture around each section of the pipeline; The monitoring value is calculated as follows:

[0009] Among them, Jc represents the monitoring value, Sy represents the water pressure in the pipeline, Ls represents the flow rate of water in the pipeline, and Sd represents the soil moisture. , and are weights, , , .

[0010] Preferably, in the pipeline monitoring module, the pipeline safety value is obtained by monitoring the value of each section of the pipeline, specifically: Step 1: Obtain the monitoring values ​​of each section of the pipeline and arrange all the monitoring values ​​in order according to the connection order of the pipeline; Step 2: Subtract the monitoring values ​​of every two adjacent pipelines to obtain multiple monitoring difference values, set a preset threshold value for the monitoring difference value, and subtract each monitoring difference value from the preset threshold value for the monitoring difference value to obtain multiple safety reference values; Step 3: Sum and average multiple safety reference values ​​to obtain the pipeline safety value.

[0011] Preferably, the working value of the pump station unit is obtained in the pipeline monitoring module, specifically: Step 1: Obtain the head of each water pump, obtain the outlet flow rate of each water pump, obtain the working time of each water pump, obtain the pump shaft speed of each water pump, and obtain the output value of each water pump through the head of the water pump, the outlet flow rate of the water pump, the working time of each water pump and the pump shaft speed of the water pump; Step 2: Sum and average the output values ​​of all water pumps in the pump station unit to obtain the working value of the pump station unit; The output value is calculated as follows:

[0012] Among them, Sc represents the output value, Yc represents the head of the water pump, Su represents the outlet flow rate of the water pump, Sj represents the working time of the water pump, and Zs represents the pump shaft speed of the water pump. , and are weights, , , .

[0013] Preferably, in the pipeline monitoring module, a monitoring statistical chart is drawn by using the pipeline safety value and the pump station unit working value, specifically: Step 1: Establish an XY axis two-dimensional horizontal and vertical coordinate system, where the X axis represents time and the Y axis represents the pipeline safety value and the working value of the pump station unit; Step 2: Mark the pipeline safety value every minute of the day in the form of points in the XY axis two-dimensional horizontal and vertical coordinate system, connect all the marked points in order from left to right with red lines, and mark them with pipeline safety values; Step 3: Mark the working value of the pump station unit every minute of the day in the form of points in the XY axis two-dimensional horizontal and vertical coordinate system, connect all the marked points in sequence from left to right with blue lines, and mark the working value of the pump station unit.

[0014] Preferably, in the fault alarm module, the switch of the alarm is controlled by comparing the water supply efficiency coefficient with a preset threshold value of the water supply efficiency coefficient, specifically: Step 1: Obtain a water supply efficiency coefficient, set a preset threshold value of the water supply efficiency coefficient, set a comparison period, and compare the magnitude relationship between the water supply efficiency coefficient and the preset threshold value of the water supply efficiency coefficient; Step 2: If the water supply efficiency coefficient is less than the preset threshold value of the water supply efficiency coefficient, an alarm is activated to indicate that a fault has occurred in the management personnel; if the water supply efficiency coefficient is greater than the preset threshold value of the water supply efficiency coefficient, the water supply efficiency coefficient is repeatedly compared with the preset threshold value of the water supply efficiency coefficient at a time interval of the comparison period.

[0015] Preferably, the fault locking module is specifically: Step 1: Obtain the monitoring value of each section of the pipeline when the alarm occurs and the monitoring value before the alarm occurs, and obtain the alarm difference of each section of the pipeline by subtracting the monitoring value of each section of the pipeline when the alarm occurs from the monitoring value of each section of the pipeline before the alarm occurs, and mark the alarm difference of each section of the pipeline on each section of the pipeline corresponding to the pump station simulation model; Step 2: Subtract the alarm difference values ​​of adjacent pipelines to obtain multiple alarm difference reference values, capture the maximum value from all alarm difference reference values ​​and mark it as the maximum alarm difference reference value, mark the corresponding two pipeline sections in the pump station simulation model according to the maximum alarm difference reference value, and define these two pipeline sections as fault locations.

[0016] (III) Beneficial effects The present invention provides a pump station unit health management system based on digital twin, which has the following beneficial effects: (1) In the fault alarm module, this scheme combines the pipeline safety value and the working value of the pump station unit to obtain the water supply efficiency coefficient, and then controls the switch of the alarm by comparing the water supply efficiency coefficient with the preset threshold value of the water supply efficiency coefficient, which is beneficial to avoid the false alarm caused by increasing the water pressure to quickly supply water, and thus facilitates the accurate monitoring of the pipeline water pressure according to the actual water supply situation. The alarm reminds the management personnel so that the management personnel can understand the status of the pipeline at the first time, and also facilitates the prediction of the damaged location of the pipeline to facilitate the management personnel to repair the pipeline, and thus facilitates the management personnel to respond to the pipeline blockage or leakage at the first time. Emergency repair, so that the pump station can stably supply water upstream.

[0017] (2) In the fault locking module, this solution analyzes the fault location through the monitoring value of each section of the pipeline, and locates and marks the location of the fault in the pump station simulation model. Therefore, when the alarm sounds, the management personnel can go to the fault location for emergency repairs as soon as possible, which makes it easier for the management personnel to understand the status of the pipeline at the first time, and further facilitates the prediction of the damaged location of the pipeline to facilitate the management personnel to repair the pipeline, and further facilitates the management personnel to respond to emergency repairs as soon as the pipeline is blocked or leaking, which further facilitates the pump station to stably supply water upstream. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a pump station unit health management system based on digital twins of the present invention; Figure 2 This is a flow chart of a pump station unit health management system based on digital twins of the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 2 The present invention provides a pump station unit health management system based on digital twin, including the following modules: Model building module, obtains pump station terrain data, obtains pump station pipeline data, and uses GIS spatial model to build pump station simulation model through pump station terrain data and pump station pipeline data; The pipeline monitoring module obtains the monitoring value of each section of the pipeline, obtains the pipeline safety value through the monitoring value of each section of the pipeline, obtains the working value of the pump station unit, draws the monitoring statistics chart through the pipeline safety value and the working value of the pump station unit, establishes a historical monitoring database, and incorporates the daily monitoring statistics chart into the historical monitoring database; The fault alarm module obtains the water supply efficiency coefficient through the pipeline safety value and the working value of the pump station unit, sets a preset threshold of the water supply efficiency coefficient, and controls the switch of the alarm through the comparison result of the water supply efficiency coefficient and the preset threshold of the water supply efficiency coefficient; The fault locking module analyzes the fault location through the monitoring values ​​of each section of the pipeline and marks the location of the fault in the pump station simulation model; The calculation method of the water supply efficiency coefficient in the fault alarm module is as follows:

[0021] Among them, Gs represents the water supply efficiency coefficient, Gz represents the working value of the pump station unit, and Aq represents the pipeline safety value.

[0022] In this embodiment, this scheme constructs a pump station simulation model in the model building module by combining the pump station terrain data and the pump station pipeline data, so as to facilitate real-time and clear grasp of the working dynamics of the pump station, and also facilitate subsequent monitoring and alarm of the pipeline according to the pump station simulation model, so as to facilitate the management personnel to understand the status of the pipeline at the first time, and also facilitate the prediction of the damaged location of the pipeline to facilitate the management personnel to repair the pipeline, so as to facilitate the management personnel to respond to emergency repairs at the first time when the pipeline is blocked or leaked, so as to facilitate the stable water supply upstream of the pump station; In the pipeline monitoring module, this solution obtains the pipeline safety value through the monitoring value of each section of the pipeline, obtains the working value of the pump station unit, and then draws a monitoring statistical chart based on the pipeline safety value and the working value of the pump station unit, so as to facilitate a more intuitive understanding of the current water supply status of the pump station pipeline. At the same time, a historical monitoring database is established to facilitate the review of the historical water supply status of the pipeline based on the historical monitoring database in the later stage, so as to facilitate the regular replacement and maintenance of the pump station pipeline; This solution combines the pipeline safety value and the pump station unit working value in the fault alarm module to obtain the water supply efficiency coefficient, and then controls the switch of the alarm through the comparison result of the water supply efficiency coefficient and the preset threshold value of the water supply efficiency coefficient, which is beneficial to avoid misjudgment and alarm when increasing the water pressure to quickly supply water, and thus facilitates accurate monitoring of the pipeline water pressure according to the actual water supply situation, and reminds the management personnel through the alarm, so as to further facilitate the management personnel to understand the status of the pipeline at the first time, and further facilitates the prediction of the damaged location of the pipeline to facilitate the management personnel to repair the pipeline, and further facilitates the management personnel to respond to emergency repairs at the first time when the pipeline is blocked or leaking, and further facilitates the pump station to stably supply water upstream; This solution analyzes the fault location through the monitoring value of each section of the pipeline in the fault locking module, and locates and marks the location of the fault in the pump station simulation model, so that when the alarm sounds, the management personnel can go to the fault location for emergency repairs at the first time, which further facilitates the management personnel to understand the status of the pipeline at the first time, and further facilitates the prediction of the damaged location of the pipeline to facilitate the management personnel to repair the pipeline, and further facilitates the management personnel to respond to emergency repairs at the first time when the pipeline is blocked or leaking, and further facilitates the pump station to stably supply water upstream; It is worth mentioning that the weight values ​​in this scheme can be obtained through the hierarchical analysis method, and the values ​​of the preset thresholds in this scheme can be obtained through the weight analysis method, which will not be elaborated here.

[0023] Model building module, specifically: Step 1: Obtain the terrain data of the pumping station, build a terrain model of the pumping station through the terrain data of the pumping station, obtain the architectural drawings of the pumping station, and add the building to the terrain model of the pumping station through the architectural drawings of the pumping station to obtain the structural model of the pumping station; Step 2: Obtain the pump station pipeline data and the pump station unit data, and add the pipeline and the pump station unit to the pump station structure model through the pump station pipeline data and the pump station unit data to obtain the primary model of the pump station; Step 3: Obtain the pipeline material and size information, obtain the pump station unit power, correct and mark the pipeline material and size in the pump station primary model based on the pipeline material and size information, mark the pump station unit power in the pump station primary model, and finally obtain the pump station simulation model.

[0024] In this embodiment, by first modeling the pump station terrain and buildings, then modeling the pump station pipeline location, and finally correcting and annotating the pipeline and pump station unit models, the pump station simulation model is made more realistic and intuitive, and it is then easier to monitor the pump station pipeline based on the pump station simulation model combined with real-time data.

[0025] The monitoring value of each section of the pipeline is obtained in the pipeline monitoring module, specifically: the water pressure of each section of the pipeline is obtained, the flow rate of the water flow in each section of the pipeline is obtained, and the soil moisture around each section of the pipeline is obtained. The monitoring value of each section of the pipeline is obtained through the water pressure of each section of the pipeline, the flow rate of the water flow in each section of the pipeline, and the soil moisture around each section of the pipeline; The monitoring value is calculated as follows:

[0026] Among them, Jc represents the monitoring value, Sy represents the water pressure in the pipeline, Ls represents the flow rate of water in the pipeline, and Sd represents the soil moisture. , and are weights, , , .

[0027] In this embodiment, the monitoring value of each pipeline section is obtained by combining the water pressure of each pipeline section, the flow rate of water in each pipeline section and the soil moisture around each pipeline section, so that the monitoring value is more accurate, which facilitates more accurate judgment of the current state of the pipeline and subsequent location prediction of blocked or leaking pipelines.

[0028] In the pipeline monitoring module, the pipeline safety value is obtained through the monitoring value of each pipeline section, specifically: Step 1: Obtain the monitoring values ​​of each section of the pipeline and arrange all the monitoring values ​​in order according to the connection order of the pipeline; Step 2: Subtract the monitoring values ​​of every two adjacent pipelines to obtain multiple monitoring difference values, set a preset threshold value for the monitoring difference value, and subtract each monitoring difference value from the preset threshold value for the monitoring difference value to obtain multiple safety reference values; Step 3: Sum and average multiple safety reference values ​​to obtain the pipeline safety value.

[0029] In this embodiment, the pipeline safety value is finally obtained by processing the monitoring value of each section of the pipeline, which facilitates the subsequent calculation and comprehensive judgment of the status of the pump station pipeline based on the pipeline safety value and the working value of the pump station unit, which is beneficial to avoid false judgment and alarm when the water pressure is increased to quickly supply water, and facilitates accurate monitoring of the pipeline water pressure according to the actual water supply situation.

[0030] In the pipeline monitoring module, the working value of the pump station unit is obtained, specifically: Step 1: Obtain the head of each water pump, obtain the outlet flow rate of each water pump, obtain the working time of each water pump, obtain the pump shaft speed of each water pump, and obtain the output value of each water pump through the head of the water pump, the outlet flow rate of the water pump, the working time of each water pump and the pump shaft speed of the water pump; Step 2: Sum and average the output values ​​of all water pumps in the pump station unit to obtain the working value of the pump station unit; The output value is calculated as follows:

[0031] Among them, Sc represents the output value, Yc represents the head of the water pump, Su represents the outlet flow rate of the water pump, Sj represents the working time of the water pump, and Zs represents the pump shaft speed of the water pump. , and are weights, , , .

[0032] In this embodiment, the output value of each water pump is obtained by combining the head of the water pump, the outlet flow rate of the water pump, the working time of each water pump and the pump shaft speed of the water pump, so as to accurately estimate the working state of the pump station unit, so as to facilitate the subsequent calculation and comprehensive judgment of the state of the pump station pipeline according to the pipeline safety value and the working value of the pump station unit, thereby helping to avoid misjudgment and alarm when increasing the water pressure for rapid water supply, and thus facilitating accurate monitoring of the pipeline water pressure according to the actual water supply situation; In the actual monitoring process, the output value of the water pump can be comprehensively calculated in combination with the vibration frequency of the output end of the water pump unit and the swing of the coupling, which further facilitates the accurate monitoring of the pipeline water pressure according to the actual water supply situation.

[0033] In the pipeline monitoring module, the monitoring statistics chart is drawn based on the pipeline safety value and the pump station unit working value, specifically: Step 1: Establish an XY axis two-dimensional horizontal and vertical coordinate system, where the X axis represents time and the Y axis represents the pipeline safety value and the working value of the pump station unit; Step 2: Mark the pipeline safety value every minute of the day in the form of points in the XY axis two-dimensional horizontal and vertical coordinate system, connect all the marked points in order from left to right with red lines, and mark them with pipeline safety values; Step 3: Mark the working value of the pump station unit every minute of the day in the form of points in the XY axis two-dimensional horizontal and vertical coordinate system, connect all the marked points in sequence from left to right with blue lines, and mark the working value of the pump station unit.

[0034] In this embodiment, a monitoring statistical chart is drawn based on the pipeline safety value and the pump station unit working value, so as to facilitate a more intuitive understanding of the current water supply status of the pump station pipeline, and also facilitate the subsequent review of the historical water supply status of the pipeline based on the monitoring statistical chart, so as to facilitate regular replacement and maintenance of the pump station pipeline.

[0035] In the fault alarm module, the switch of the alarm is controlled by comparing the water supply efficiency coefficient with the preset threshold of the water supply efficiency coefficient, specifically: Step 1: Obtain a water supply efficiency coefficient, set a preset threshold value of the water supply efficiency coefficient, set a comparison period, and compare the magnitude relationship between the water supply efficiency coefficient and the preset threshold value of the water supply efficiency coefficient; Step 2: If the water supply efficiency coefficient is less than the preset threshold value of the water supply efficiency coefficient, an alarm is activated to indicate that a fault has occurred in the management personnel; if the water supply efficiency coefficient is greater than the preset threshold value of the water supply efficiency coefficient, the water supply efficiency coefficient is repeatedly compared with the preset threshold value of the water supply efficiency coefficient at a time interval of the comparison period.

[0036] In this embodiment, by comparing the water supply efficiency coefficient with a preset threshold value of the water supply efficiency coefficient, it is convenient to determine whether the water pressure in the pump station pipeline produces unreasonable fluctuations, and then it is convenient to issue an alarm as soon as the pipeline is blocked or leaking to remind management personnel to repair the pipeline.

[0037] Fault locking module, specifically: Step 1: Obtain the monitoring value of each section of the pipeline when the alarm occurs and the monitoring value before the alarm occurs, and obtain the alarm difference of each section of the pipeline by subtracting the monitoring value of each section of the pipeline when the alarm occurs from the monitoring value of each section of the pipeline before the alarm occurs, and mark the alarm difference of each section of the pipeline on each section of the pipeline corresponding to the pump station simulation model; Step 2: Subtract the alarm difference values ​​of adjacent pipelines to obtain multiple alarm difference reference values, capture the maximum value from all alarm difference reference values ​​and mark it as the maximum alarm difference reference value, mark the corresponding two pipeline sections in the pump station simulation model according to the maximum alarm difference reference value, and define these two pipeline sections as fault locations.

[0038] In this embodiment, the alarm difference value of each pipeline section is obtained by subtracting the monitoring value when each pipeline section is alarmed from the monitoring value before the alarm of each pipeline section, so as to facilitate understanding of the water pressure change amplitude of each pipeline before and after the alarm, and the alarm difference values ​​of adjacent pipelines are subtracted to obtain multiple alarm difference reference values, and the maximum value is captured from all the alarm difference reference values ​​and marked as the maximum alarm difference reference value, so as to facilitate marking the two pipelines with the largest water pressure change amplitude. The pipeline with the largest water pressure change is often the key pipeline for leakage or blockage. Therefore, marking the pipeline makes it convenient for management personnel to go to the fault location for emergency repair as soon as possible, and it is convenient for management personnel to repair the pipeline by predicting the damaged location of the pipeline.

[0039] The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination thereof. When implemented using software, the above embodiments may be implemented in whole or in part in the form of a computer program product. A person of ordinary skill in the art may appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein may be implemented in electronic hardware, or in a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution.

[0040] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0041] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A pump station unit health management system based on digital twin, characterized in that: Includes the following modules: Model building module, obtains pump station terrain data, obtains pump station pipeline data, and uses GIS spatial model to build pump station simulation model through pump station terrain data and pump station pipeline data; The pipeline monitoring module obtains the monitoring value of each section of the pipeline, obtains the pipeline safety value through the monitoring value of each section of the pipeline, obtains the working value of the pump station unit, draws the monitoring statistics chart through the pipeline safety value and the working value of the pump station unit, establishes a historical monitoring database, and incorporates the daily monitoring statistics chart into the historical monitoring database; The fault alarm module obtains the water supply efficiency coefficient through the pipeline safety value and the working value of the pump station unit, sets a preset threshold of the water supply efficiency coefficient, and controls the switch of the alarm through the comparison result of the water supply efficiency coefficient and the preset threshold of the water supply efficiency coefficient; The fault locking module analyzes the fault location through the monitoring values ​​of each section of the pipeline and marks the location of the fault in the pump station simulation model; The calculation method of the water supply efficiency coefficient in the fault alarm module is as follows: ; Among them, Gs represents the water supply efficiency coefficient, Gz represents the working value of the pump station unit, and Aq represents the pipeline safety value.

2. According to claim 1, a pump station unit health management system based on digital twins is characterized by: Model building module, specifically: Step 1: Obtain the terrain data of the pumping station, build a terrain model of the pumping station through the terrain data of the pumping station, obtain the architectural drawings of the pumping station, and add the building to the terrain model of the pumping station through the architectural drawings of the pumping station to obtain the structural model of the pumping station; Step 2: Obtain the pump station pipeline data and the pump station unit data, and add the pipeline and the pump station unit to the pump station structure model through the pump station pipeline data and the pump station unit data to obtain the primary model of the pump station; Step 3: Obtain the pipeline material and size information, obtain the pump station unit power, correct and mark the pipeline material and size in the pump station primary model based on the pipeline material and size information, mark the pump station unit power in the pump station primary model, and finally obtain the pump station simulation model.

3. According to a pump station unit health management system based on digital twins according to claim 1, it is characterized by: The monitoring value of each section of the pipeline is obtained in the pipeline monitoring module, specifically: the water pressure of each section of the pipeline is obtained, the flow rate of the water flow in each section of the pipeline is obtained, and the soil moisture around each section of the pipeline is obtained. The monitoring value of each section of the pipeline is obtained through the water pressure of each section of the pipeline, the flow rate of the water flow in each section of the pipeline, and the soil moisture around each section of the pipeline; The monitoring value is calculated as follows: ; Among them, Jc represents the monitoring value, Sy represents the water pressure in the pipeline, Ls represents the flow rate of water in the pipeline, and Sd represents the soil moisture. , and are weights, , , .

4. According to a pump station unit health management system based on digital twins according to claim 1, it is characterized by: In the pipeline monitoring module, the pipeline safety value is obtained through the monitoring value of each pipeline section, specifically: Step 1: Obtain the monitoring values ​​of each section of the pipeline and arrange all the monitoring values ​​in order according to the connection order of the pipeline; Step 2: Subtract the monitoring values ​​of every two adjacent pipelines to obtain multiple monitoring difference values, set a preset threshold value for the monitoring difference value, and subtract each monitoring difference value from the preset threshold value for the monitoring difference value to obtain multiple safety reference values; Step 3: Sum and average multiple safety reference values ​​to obtain the pipeline safety value.

5. According to a pump station unit health management system based on digital twins according to claim 1, it is characterized by: In the pipeline monitoring module, the working value of the pump station unit is obtained, specifically: Step 1: Obtain the head of each water pump, obtain the outlet flow rate of each water pump, obtain the working time of each water pump, obtain the pump shaft speed of each water pump, and obtain the output value of each water pump through the head of the water pump, the outlet flow rate of the water pump, the working time of each water pump and the pump shaft speed of the water pump; Step 2: Sum and average the output values ​​of all water pumps in the pump station unit to obtain the working value of the pump station unit; The output value is calculated as follows: ; Among them, Sc represents the output value, Yc represents the head of the water pump, Su represents the outlet flow rate of the water pump, Sj represents the working time of the water pump, and Zs represents the pump shaft speed of the water pump. , and are weights, , , .

6. According to a pump station unit health management system based on digital twins according to claim 1, it is characterized by: In the pipeline monitoring module, the monitoring statistics chart is drawn based on the pipeline safety value and the pump station unit working value, specifically: Step 1: Establish an XY axis two-dimensional horizontal and vertical coordinate system, where the X axis represents time and the Y axis represents the pipeline safety value and the working value of the pump station unit; Step 2: Mark the pipeline safety value every minute of the day in the form of points in the XY axis two-dimensional horizontal and vertical coordinate system, connect all the marked points in order from left to right with red lines, and mark them with pipeline safety values; Step 3: Mark the working value of the pump station unit every minute of the day in the form of points in the XY axis two-dimensional horizontal and vertical coordinate system, connect all the marked points in sequence from left to right with blue lines, and mark the working value of the pump station unit.

7. According to claim 1, a pump station unit health management system based on digital twins is characterized by: In the fault alarm module, the switch of the alarm is controlled by comparing the water supply efficiency coefficient with the preset threshold of the water supply efficiency coefficient, specifically: Step 1: Obtain a water supply efficiency coefficient, set a preset threshold value of the water supply efficiency coefficient, set a comparison period, and compare the magnitude relationship between the water supply efficiency coefficient and the preset threshold value of the water supply efficiency coefficient; Step 2: If the water supply efficiency coefficient is less than the preset threshold value of the water supply efficiency coefficient, an alarm is activated to indicate that a fault has occurred in the management personnel; if the water supply efficiency coefficient is greater than the preset threshold value of the water supply efficiency coefficient, the water supply efficiency coefficient is repeatedly compared with the preset threshold value of the water supply efficiency coefficient at a time interval of the comparison period.

8. According to a pump station unit health management system based on digital twins according to claim 1, it is characterized by: Fault locking module, specifically: Step 1: Obtain the monitoring value of each section of the pipeline when the alarm occurs and the monitoring value before the alarm occurs, and obtain the alarm difference of each section of the pipeline by subtracting the monitoring value of each section of the pipeline when the alarm occurs from the monitoring value of each section of the pipeline before the alarm occurs, and mark the alarm difference of each section of the pipeline on each section of the pipeline corresponding to the pump station simulation model; Step 2: Subtract the alarm difference values ​​of adjacent pipelines to obtain multiple alarm difference reference values, capture the maximum value from all alarm difference reference values ​​and mark it as the maximum alarm difference reference value, mark the corresponding two pipeline sections in the pump station simulation model according to the maximum alarm difference reference value, and define these two pipeline sections as fault locations.

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