A leak monitoring system for an existing underground pipe network

Abstract

The application provides a leakage monitoring system for an existing underground pipe network, comprising a soil detection module arranged in the soil around the underground pipe network and used for detecting basic data of the soil; an anomaly analysis module connected with the soil detection module and used for analyzing the basic data and generating an alarm signal according to an analysis result; an anomaly positioning module connected with the soil detection module and the anomaly analysis module and used for acquiring position information and a leakage degree of an abnormal pipe according to the alarm signal and the basic data; and a patrol alarm module connected with the anomaly positioning module and used for conducting patrol according to the position information of the abnormal pipe and informing a maintenance personnel of the position information and the leakage degree of the abnormal pipe. The application realizes multi-directional leakage monitoring of the underground pipe network by using a transverse and longitudinal monitoring mode, and can provide the leakage degree for the maintenance personnel. The patrol mode is used for verification and confirmation, and the monitoring accuracy is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underground pipe network, more particularly to a leakage monitoring system for existing underground pipe network. BACKGROUND

[0002] The leakage detection for existing underground pipe network is internal pipe detection and soil detection; the existing soil temperature monitoring leakage method is to arrange a certain number of temperature sensors around the pipe to monitor the change of soil temperature; these sensors can be uniformly distributed at different positions to ensure comprehensive monitoring of the entire pipe, and by analyzing the collected temperature data, the normal change range of the soil temperature around the pipe is determined; if the temperature exceeds the normal range, there may be pipe leakage or other abnormal conditions;

[0003] However, the underground pipe network is laid underground, and weather factors often cause the data of the sensors to be inaccurate; secondly, the leakage point of the pipe of the underground pipe network cannot be determined, and a large number of additional sensors reduce the economy; therefore, how to provide a leakage monitoring system for existing underground pipe network which can avoid weather influence, accurately locate the leakage position and increase the economy has become a problem to be solved in the technical field. SUMMARY

[0004] To solve the above problems, the present application provides the following technical scheme:

[0005] A leakage monitoring system for existing underground pipe network, comprising:

[0006] a soil detection module arranged in the soil around the underground pipe network for detecting basic data of the soil;

[0007] an abnormality analysis module connected with the soil detection module for analyzing the basic data and generating an alarm signal according to the analysis result;

[0008] an abnormality positioning module connected with the soil detection module and the abnormality analysis module for obtaining position information and leakage degree of the abnormal pipe according to the alarm signal and the basic data;

[0009] a patrol alarm module connected with the abnormality positioning module for conducting patrol according to the position information of the abnormal pipe and notifying the position information and the leakage degree of the abnormal pipe to the maintenance personnel.

[0010] Preferably, in the above-mentioned leakage monitoring system for existing underground pipe network, the soil detection module comprises:

[0011] a plurality of lateral detection units arranged and distributed in the soil on both sides of each underground pipe for detecting lateral temperature data and lateral humidity data of the soil in real time;

[0012] A plurality of longitudinal detection units are arranged in the soil under each underground pipeline to detect longitudinal temperature data and longitudinal humidity data of the soil in real time;

[0013] A numbering unit is connected with the transverse detection unit and the longitudinal detection unit, and is configured to set different transverse numbers for each transverse detection unit and different longitudinal numbers for each longitudinal detection unit according to the position coordinates;

[0014] A numbering database is connected with the numbering unit, and is configured to store the transverse numbers and the longitudinal numbers and the corresponding position coordinates;

[0015] A signal acquisition end is connected with the transverse detection unit, the longitudinal detection unit and the numbering unit, and is configured to periodically acquire the transverse temperature data, the transverse humidity data, the longitudinal temperature data and the longitudinal humidity data, and insert the corresponding numbers into the corresponding data as identifiers.

[0016] Preferably, in the above leakage monitoring system of the existing underground pipeline network, when the numbering unit numbers the transverse detection unit, the numbering unit sets a direction number according to the left-right direction of the pipeline, and inserts the direction number into the transverse number as a sub-number.

[0017] Preferably, in the above leakage monitoring system of the existing underground pipeline network, the anomaly analysis module comprises:

[0018] A data storage unit is connected with the signal acquisition end, and is configured to remotely acquire the transverse temperature data, the transverse humidity data, the longitudinal temperature data and the longitudinal humidity data carrying the identifiers, and sort and store the data according to the number of acquisition cycles;

[0019] A preliminary analysis unit is connected with the data storage unit, and is configured to sequentially calculate the transverse temperature difference, the transverse humidity difference, the longitudinal temperature difference and the longitudinal humidity difference of the data carrying the same identifier in each cycle;

[0020] The transverse analysis unit is connected with the preliminary analysis unit, and is used for obtaining and screening transverse temperature difference and transverse humidity difference; the transverse analysis unit obtains the transverse temperature difference with the largest value, takes the period number corresponding to the transverse temperature difference as a temperature observation period, and substitutes the transverse temperature difference value of the temperature observation period and the transverse temperature difference values corresponding to the preset period numbers before the temperature observation period into the coordinate axis, draws a transverse temperature curve, and calculates the slope of the curve, and the obtained slope is a transverse temperature slope; the transverse analysis unit obtains the transverse humidity difference with the largest value, takes the period number corresponding to the transverse humidity difference as a humidity observation period, and substitutes the transverse humidity difference value of the humidity observation period and the transverse humidity difference values corresponding to the preset period numbers before the humidity observation period into the coordinate axis, draws a transverse humidity curve, and calculates the slope of the curve, and the obtained slope is a transverse humidity slope.

[0021] The longitudinal analysis unit is connected with the preliminary analysis unit, and is used for obtaining and screening longitudinal temperature difference and longitudinal humidity difference; the longitudinal analysis unit obtains the longitudinal temperature difference with the largest value, takes the period number corresponding to the longitudinal temperature difference as a temperature observation period, and substitutes the longitudinal temperature difference value of the temperature observation period and the longitudinal temperature difference values corresponding to the preset period numbers before the temperature observation period into the coordinate axis, draws a longitudinal temperature curve, and calculates the slope of the curve, and the obtained slope is a longitudinal temperature slope; the longitudinal analysis unit obtains the longitudinal humidity difference with the largest value, takes the period number corresponding to the longitudinal humidity difference as a humidity observation period, and substitutes the longitudinal humidity difference value of the humidity observation period and the longitudinal humidity difference values corresponding to the preset period numbers before the humidity observation period into the coordinate axis, draws a longitudinal humidity curve, and calculates the slope of the curve, and the obtained slope is a longitudinal humidity slope.

[0022] The leakage determination unit is connected with the transverse analysis unit and the longitudinal analysis unit, and is used for obtaining the transverse temperature slope, the transverse humidity slope, the longitudinal temperature slope and the longitudinal humidity slope; the leakage determination unit is provided with a temperature slope standard value and a humidity slope standard value, and compares the transverse temperature slope, the transverse humidity slope, the longitudinal temperature slope and the longitudinal humidity slope with the temperature slope standard value and the humidity slope standard value; if the slope is higher than the standard value, it is determined that the pipeline leaks, and a leakage alarm signal is generated.

[0023] Preferably, in the above-mentioned leakage monitoring system of an existing underground pipeline network, the preliminary analysis unit further comprises:

[0024] The ideal soil temperature value and the ideal soil humidity value are calculated according to the current meteorological condition, and the data in the data storage unit is determined; the preliminary analysis unit only calculates the temperature difference and the humidity difference of the temperature data and the humidity data in the data storage unit which are higher than the ideal soil temperature value and the ideal soil humidity value.

[0025] Preferably, in the above-mentioned leakage monitoring system of existing underground pipe network, the leakage determination unit further comprises:

[0026] A plurality of slope ranges are preset, the lateral slope or the longitudinal slope is matched with the preset range, and the leakage degree is determined according to the matching result.

[0027] Preferably, in the above-mentioned leakage monitoring system of existing underground pipe network, the leakage degree determination process comprises:

[0028] The slope data is A, and the preset slope range includes (A1, A2), (A3, A4), (A5, A6);

[0029] When A∈(A1, A2), a slight leakage is generated;

[0030] When A∈(A3, A4), a moderate leakage is generated;

[0031] When A∈(A5, A6), a serious leakage is generated.

[0032] Preferably, in the above-mentioned leakage monitoring system of existing underground pipe network, the anomaly positioning module comprises:

[0033] A tracing unit connected with the leakage determination unit and the preliminary analysis unit, used for obtaining an identifier corresponding to the data source according to the leakage alarm signal, restoring the number of the lateral detection unit or the longitudinal detection unit according to the identifier, and outputting the number as a leakage number;

[0034] A position locking unit connected with the tracing unit and the number library, used for matching the leakage number in the number library, and determining the pipe position coordinates and the leakage direction according to the matching result.

[0035] Preferably, in the above-mentioned leakage monitoring system of existing underground pipe network, the patrol alarm module comprises:

[0036] A UAV patrol unit connected with the position locking unit, used for performing patrol according to the pipe position coordinates where the leakage occurs; the UAV patrol unit is provided with an infrared probe, used for shooting ground pictures and transmitting the pictures to a terminal device for display;

[0037] The terminal device connected with the UAV patrol unit and the leakage determination unit, used for displaying the ground pictures and receiving the leakage degree information, verifying the leakage position by manually observing the high-temperature area and the water seepage area in the pictures; the terminal device controls the UAV patrol unit to start cruising according to the leakage alarm signal.

[0038] An alarm unit is connected with the terminal device, for sending the leakage position information and the leakage degree information to the maintenance personnel.

[0039] Preferably, in the leakage monitoring system of the existing underground pipe network, the inspection and alarm module further comprises:

[0040] A signal receiving unit is arranged on the unmanned aerial vehicle inspection unit and wirelessly connected with the signal collecting end, for receiving the transverse temperature data and the longitudinal temperature data in real time, and sending the data and the ground picture to the terminal device;

[0041] When the unmanned aerial vehicle inspection unit arrives above the signal collecting end, the transverse temperature data and the longitudinal temperature data of the pipeline at the part are received and sent to the terminal device, the temperature data is color set according to the preset temperature range through the terminal device, and the corresponding color is inserted into the ground picture for display.

[0042] According to the above technical solution, compared with the prior art, the application has the beneficial effects that:

[0043] The application provides a leakage monitoring system of an existing underground pipe network, comprising a soil detection module arranged in the soil around the underground pipe network and used for detecting basic data of the soil, an abnormality analysis module connected with the soil detection module and used for analyzing the basic data and generating an alarm signal according to an analysis result, an abnormality positioning module connected with the soil detection module and the abnormality analysis module and used for acquiring position information and a leakage degree of an abnormal pipeline according to the alarm signal and the basic data, and an inspection and alarm module connected with the abnormality positioning module and used for performing inspection according to the position information of the abnormal pipeline and notifying the position information and the leakage degree of the abnormal pipeline to maintenance personnel. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute the embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0045] Figure 1 is a system flowchart of the application. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described in the description of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application. The technical solutions in the embodiments of the present application will be clearly and completely described in the description of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0047] In the present application, the terms "first", "second", "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connection" can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the description of the present application, it should be understood that the terms "up", "down", "left", "right", "front", "back" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or units referred to must have a particular direction, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0049] In the description of the present application, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] In one embodiment, referring to Figure 1 A leakage monitoring system for an existing underground pipe network, comprising:

[0051] A soil detection module arranged in the soil around the underground pipe network, for detecting basic data of the soil;

[0052] an abnormality analysis module connected with the soil detection module, configured to analyze the basic data and generate an alarm signal according to an analysis result;

[0053] an abnormality positioning module connected with the soil detection module and the abnormality analysis module, configured to acquire position information and a leakage degree of an abnormal pipeline according to the alarm signal and the basic data;

[0054] a patrol alarm module connected with the abnormality positioning module, configured to patrol according to the position information of the abnormal pipeline and notify a maintenance personnel of the position information and the leakage degree of the abnormal pipeline.

[0055] The principle of the above embodiment is that after a leakage occurs in an underground pipeline, water in the pipeline spreads to the surrounding soil, and detecting the temperature and humidity of the soil can determine whether a leakage occurs and a leakage position; the patrol alarm module is used to notify the maintenance personnel of the position information and the leakage degree of the abnormal pipeline, to assist the personnel to handle the leakage.

[0056] The above embodiment has the beneficial effects that the soil temperature and humidity are used for leakage detection, without the need to install a sensing device in the pipeline, to increase the service life of the detection device; the position information and the leakage degree of the abnormal pipeline are provided for the maintenance personnel, to increase the safety of the maintenance personnel.

[0057] To further optimize the above scheme, please refer to Figure 1 A leakage monitoring system for an existing underground pipeline network, the soil detection module comprises:

[0058] a plurality of lateral detection units, each of which is distributed in the soil on both sides of each underground pipeline, and is configured to detect real-time lateral temperature data and lateral humidity data of the soil;

[0059] a plurality of longitudinal detection units, each of which is distributed in the soil below each underground pipeline, and is configured to detect real-time longitudinal temperature data and longitudinal humidity data of the soil;

[0060] a numbering unit connected with the lateral detection units and the longitudinal detection units, configured to set different lateral numbers for each lateral detection unit and different longitudinal numbers for each longitudinal detection unit according to position coordinates;

[0061] a numbering library connected with the numbering unit, configured to store the lateral numbers and the longitudinal numbers, and store corresponding position coordinates;

[0062] a signal acquisition end connected with the lateral detection units, the longitudinal detection units and the numbering unit, configured to periodically acquire the lateral temperature data, the lateral humidity data, the longitudinal temperature data and the longitudinal humidity data, and convert corresponding numbers into identifiers and insert the identifiers into corresponding data.

[0063] It should be noted that the numbering unit numbers the transverse detection unit according to the position number set in the left and right directions of the pipeline, and inserts it as a sub-number into the transverse number; the embodiment is equipped with detection devices on both sides and below the pipeline, and since the leaked liquid will penetrate into the soil under the influence of gravity, even if the transverse detection device on both sides of the pipeline is affected, the longitudinal detection device at the bottom can also achieve the effect of leakage monitoring, wherein the temperature and humidity detection device is a prior art means; the embodiment uses temperature and humidity as monitoring parameters, and sets detection devices on both sides and below the pipeline, realizing omnidirectional monitoring of the pipeline leakage point, and even if the transverse detection device fails, the leakage can be inquired through the longitudinal device.

[0064] For further optimization of the above scheme, please refer to Figure 1 A leakage monitoring system for an existing underground pipe network, the anomaly analysis module comprises:

[0065] A data storage unit connected with the signal acquisition end, for remotely acquiring transverse temperature data, transverse humidity data, longitudinal temperature data and longitudinal humidity data carrying identifiers, and sorting and storing the data according to the number of cycles obtained;

[0066] A preliminary analysis unit connected with the data storage unit, for sequentially calculating the transverse temperature difference, transverse humidity difference, longitudinal temperature difference and longitudinal humidity difference of the data carrying the same identifier in each cycle;

[0067] A transverse analysis unit connected with the preliminary analysis unit, for acquiring the transverse temperature difference and the transverse humidity difference, and screening them; the transverse analysis unit acquires the maximum transverse temperature difference, takes the cycle number corresponding to the maximum transverse temperature difference as the temperature observation cycle, and substitutes the transverse temperature difference value of the temperature observation cycle and the transverse temperature difference values corresponding to the preset number of cycles before the temperature observation cycle into the coordinate axis, draws a transverse temperature curve, and calculates the slope of the curve, the obtained slope being the transverse temperature slope; the transverse analysis unit acquires the maximum transverse humidity difference, takes the cycle number corresponding to the maximum transverse humidity difference as the humidity observation cycle, and substitutes the transverse humidity difference value of the humidity observation cycle and the transverse humidity difference values corresponding to the preset number of cycles before the humidity observation cycle into the coordinate axis, draws a transverse humidity curve, and calculates the slope of the curve, the obtained slope being the transverse humidity slope;

[0068] The longitudinal analysis unit is connected with the preliminary analysis unit, and is used for obtaining and screening longitudinal temperature difference and longitudinal humidity difference; the longitudinal analysis unit obtains the longitudinal temperature difference with the largest value, takes the period number corresponding to the longitudinal temperature difference as a temperature observation period, and substitutes the longitudinal temperature difference value of the temperature observation period and the longitudinal temperature difference values corresponding to the preset period number before the temperature observation period into the coordinate axis, draws a longitudinal temperature curve, and calculates the slope of the curve, and the obtained slope is a longitudinal temperature slope; the longitudinal analysis unit obtains the longitudinal humidity difference with the largest value, takes the period number corresponding to the longitudinal humidity difference as a humidity observation period, and substitutes the longitudinal humidity difference value of the humidity observation period and the longitudinal humidity difference values corresponding to the preset period number before the humidity observation period into the coordinate axis, draws a longitudinal humidity curve, and calculates the slope of the curve, and the obtained slope is a longitudinal humidity slope;

[0069] The leakage determination unit is connected with the transverse analysis unit and the longitudinal analysis unit, and is used for obtaining the transverse temperature slope, the transverse humidity slope, the longitudinal temperature slope and the longitudinal humidity slope; the leakage determination unit is provided with a temperature slope standard value and a humidity slope standard value, and the leakage determination unit compares the transverse temperature slope, the transverse humidity slope, the longitudinal temperature slope and the longitudinal humidity slope with the temperature slope standard value and the humidity slope standard value, and determines that the slope higher than the standard value is pipeline leakage, and generates a leakage alarm signal.

[0070] It should be noted that the preliminary analysis unit further comprises:

[0071] The ideal soil temperature value and the ideal soil humidity value are calculated according to the current weather condition, and the data in the data storage unit is determined; the preliminary analysis unit only calculates the difference of the temperature data and the humidity data in the data storage unit higher than the ideal soil temperature value and the ideal soil humidity value; the calculation process of the ideal soil temperature value and the ideal soil humidity value is a prior art means;

[0072] The leakage determination unit further comprises: a plurality of slope ranges are preset, the transverse slope or the longitudinal slope is matched with the preset range, and the leakage degree is determined according to the matching result;

[0073] The determination process of the leakage degree comprises: the slope data is A, and the preset slope range comprises (A1, A2), (A3, A4) and (A5, A6);

[0074] When A∈(A1, A2), a slight leakage is generated;

[0075] When A∈(A3, A4), a moderate leakage is generated;

[0076] When A∈(A5, A6), a serious leakage is generated;

[0077] The embodiment utilizes periodic acquisition of temperature and humidity data to calculate the difference, calculates the slope in the manner of drawing, reflects the speed of leakage through the size of the slope, and further reflects the leakage degree; the detection equipment number is utilized to determine the leakage position and the leakage direction of the pipeline, and the comprehensive monitoring of the leakage is realized.

[0078] For further optimization of the above scheme, refer to Figure 1 A leakage monitoring system of an existing underground pipe network, the anomaly positioning module comprises:

[0079] A tracing unit connected with the leakage determination unit and the preliminary analysis unit, used for acquiring an identifier corresponding to the data source according to the leakage alarm signal, restoring the number of the horizontal detection unit or the vertical detection unit according to the identifier, and outputting the number as a leakage number;

[0080] A position locking unit connected with the tracing unit and the number library, used for matching the leakage number in the number library, and determining the pipeline position coordinates and the leakage direction according to the matching result.

[0081] It should be noted that the embodiment realizes the acquisition of the position of the abnormal pipeline in the manner of identifier tracing.

[0082] For further optimization of the above scheme, refer to Figure 1 A leakage monitoring system of an existing underground pipe network, the anomaly positioning module comprises:

[0083] A UAV inspection unit connected with the position locking unit, used for performing inspection according to the pipeline position coordinates where the leakage occurs; the UAV inspection unit is provided with an infrared probe, used for shooting ground pictures and transmitting the pictures to a terminal device for display;

[0084] A terminal device connected with the UAV inspection unit and the leakage determination unit, used for displaying the ground pictures and receiving the leakage degree information, verifying the leakage position by manually observing the high-temperature area and the water seepage area in the pictures; the terminal device controls the UAV inspection unit to start cruising according to the leakage alarm signal.

[0085] An alarm unit connected with the terminal device, used for sending the leakage position information and the leakage degree information to maintenance personnel.

[0086] It should be noted that the inspection alarm module further comprises a signal receiving unit arranged on the unmanned aerial vehicle inspection unit and wirelessly connected with the signal collecting end, for receiving the transverse temperature data and the longitudinal temperature data in real time, and sending the data to the terminal device together with the ground picture; when the unmanned aerial vehicle inspection unit reaches above the signal collecting end, the transverse temperature data and the longitudinal temperature data of the pipeline at the part are received and sent to the terminal device, the temperature data is color set according to the preset temperature range through the terminal device, and the corresponding color is inserted into the ground picture for display; the embodiment realizes the process of personnel intervention in monitoring leakage, and simultaneously adopts the unmanned aerial vehicle for cruising, and the inspection and maintenance have priorities, the position with serious leakage degree is preferentially cruised and preferentially alarmed and sent, and the position with serious leakage is timely maintained.

[0087] It should be noted that the system provided by the above embodiment is only exemplified by the division of the above functional modules, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the modules or steps in the embodiment of the application are further decomposed or combined, for example, the modules of the above embodiment can be combined into one module, or can be further split into multiple sub-modules to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the application are only for distinguishing the modules and steps, and should not be considered as an improper limitation of the application.

[0088] The term "comprising" or any other similar word is intended to encompass non-exclusive inclusion, so that the process, method, article or equipment / device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes the elements inherent to the process, method, article or equipment / device.

[0089] So far, the technical solutions of the application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the application, and the technical solutions after the changes or replacements will fall within the protection scope of the application.

[0090] It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents. The above description discloses only preferred embodiments of the application and does not limit the scope of the application. The application is susceptible to modifications in the component parts used, and in the details of the construction and operation, and the scope of the overall application; therefore, various modifications as will be obvious to those skilled in the art are intended to be included within the scope of the present application.

Claims

1. A leakage monitoring system for existing underground pipe networks, characterized in that, include: The soil testing module is installed in the soil around the underground pipe network to detect basic soil data. An anomaly analysis module, which is connected to the soil detection module, is used to analyze basic data and generate alarm signals based on the analysis results; An anomaly location module, which is connected to the soil detection module and the anomaly analysis module, is used to obtain the location information and leakage degree of the abnormal pipeline based on alarm signals and basic data. The inspection alarm module is connected to the abnormal location module and is used to inspect the abnormal pipeline according to the location information of the abnormal pipeline and notify the maintenance personnel of the location information and leakage degree of the abnormal pipeline. The soil testing module includes: Multiple transverse detection units are installed and distributed in the soil on both sides of each underground pipeline to detect transverse temperature and humidity data of the soil in real time. Multiple longitudinal detection units are installed and distributed in the soil beneath each underground pipeline to detect longitudinal temperature and humidity data of the soil in real time. A numbering unit, which is connected to the horizontal detection unit and the vertical detection unit, is used to set different horizontal numbers for each horizontal detection unit and different vertical numbers for each vertical detection unit according to the position coordinates. The numbering library, which is connected to the numbering unit, is used to store horizontal and vertical numbers, as well as the corresponding position coordinates; The signal acquisition end is connected to the lateral detection unit, the longitudinal detection unit and the numbering unit, and is used to periodically acquire lateral temperature data, lateral humidity data, longitudinal temperature data and longitudinal humidity data, and convert their corresponding numbers into identifiers and insert them into the corresponding data. When the numbering unit numbers the lateral detection unit, it sets an orientation number according to its left and right direction in the pipeline and inserts it as a sub-number into the lateral numbering. The anomaly analysis module includes: The data storage unit is connected to the signal acquisition terminal and is used to remotely acquire horizontal temperature data, horizontal humidity data, vertical temperature data and vertical humidity data carrying identifiers, and to sort and store the data according to the number of acquisition cycles. A preliminary analysis unit, connected to the data storage unit, is used to sequentially calculate the horizontal temperature difference, horizontal humidity difference, vertical temperature difference, and vertical humidity difference of data carrying the same identifier in each cycle. A lateral analysis unit, connected to the preliminary analysis unit, is used to acquire and filter lateral temperature and humidity differences. The lateral analysis unit acquires the largest lateral temperature difference, uses its corresponding period number as the temperature observation period, and substitutes the lateral temperature difference value of this observation period, along with the lateral temperature difference values ​​corresponding to a preset number of previous periods, into the coordinate axis to plot a lateral temperature curve and calculate the slope of the curve. Similarly, the lateral analysis unit acquires the largest lateral humidity difference, uses its corresponding period number as the humidity observation period, and substitutes the lateral humidity difference value of this observation period, along with the lateral humidity difference values ​​corresponding to a preset number of previous periods, into the coordinate axis to plot a lateral humidity curve and calculate the slope of the curve. The longitudinal analysis unit, connected to the preliminary analysis unit, is used to acquire and filter longitudinal temperature and humidity differences. The longitudinal analysis unit acquires the largest longitudinal temperature difference, uses its corresponding period number as the temperature observation period, and substitutes the longitudinal temperature difference value of this observation period, along with the longitudinal temperature difference values ​​corresponding to a preset number of previous periods, into the coordinate axis to plot a longitudinal temperature curve and calculate the slope of the curve. Similarly, the longitudinal analysis unit acquires the largest longitudinal humidity difference, uses its corresponding period number as the humidity observation period, and substitutes the longitudinal humidity difference value of this observation period, along with the longitudinal humidity difference values ​​corresponding to a preset number of previous periods, into the coordinate axis to plot a longitudinal humidity curve and calculate the slope of the curve. A leakage detection unit, connected to the lateral analysis unit and the longitudinal analysis unit, is used to acquire the lateral temperature slope, lateral humidity slope, longitudinal temperature slope, and longitudinal humidity slope. The leakage detection unit is equipped with standard values ​​for temperature slope and humidity slope. It compares the lateral temperature slope, lateral humidity slope, longitudinal temperature slope, and longitudinal humidity slope with the standard values ​​for temperature slope and humidity slope. If the slope is higher than the standard value, it is determined that the pipeline is leaking, and a leakage alarm signal is generated.

2. The leakage monitoring system for existing underground pipeline networks according to claim 1, characterized in that, The preliminary analysis unit also includes: The ideal values ​​for soil temperature and soil moisture are calculated based on the current meteorological conditions, and the data in the data storage unit is evaluated. The preliminary analysis unit only performs difference calculations on temperature and humidity data in the data storage unit that are higher than the ideal values ​​for soil temperature and soil moisture.

3. A leakage monitoring system for existing underground pipe networks according to claim 2, characterized in that, The leakage detection unit also includes: Multiple slope ranges are preset. The horizontal or vertical slope is matched with the preset range, and the degree of leakage is determined based on the matching result.

4. A leakage monitoring system for existing underground pipe networks according to claim 3, characterized in that, The process for determining the degree of leakage includes: Let the slope data be A, and the preset slope range includes (A1, A2), (A3, A4), and (A5, A6). When A∈(A1, A2), the leakage level is slight leakage; When A∈(A3, A4), the leakage level is moderate. When A∈(A5,A6), the leakage level is severe leakage.

5. A leakage monitoring system for existing underground pipe networks according to claim 4, characterized in that, The anomaly location module includes: The tracing unit, which is connected to the leakage determination unit and the preliminary analysis unit, is used to obtain the identifier corresponding to the data source based on the leakage alarm signal, restore the number of the horizontal detection unit or the vertical detection unit based on the identifier, and output the number as the leakage number. A location locking unit, which is connected to the tracing unit and the numbering database, is used to match the leak number in the numbering database and determine the location coordinates of the leaking pipeline and the direction of the leak based on the matching result.

6. A leakage monitoring system for existing underground pipe networks according to claim 5, characterized in that, The inspection alarm module includes: The drone inspection unit, connected to the location locking unit, is used to inspect the leaking pipeline based on its location coordinates. The drone inspection unit is equipped with an infrared sensor to capture ground images and transmit them to a terminal device for display. The terminal device is connected to the UAV inspection unit and the leakage determination unit. It is used to display ground images and receive leakage degree information. The leakage location is verified by manually observing high-temperature areas and seepage areas in the images. The terminal device controls the UAV inspection unit to start patrolling according to the leakage alarm signal. An alarm unit, connected to the terminal device, is used to send information about the location and extent of the leak to maintenance personnel.

7. A leakage monitoring system for existing underground pipe networks according to claim 6, characterized in that, The inspection alarm module also includes: A signal receiving unit is installed on the UAV inspection unit and wirelessly connected to the signal acquisition terminal. It is used to receive horizontal and vertical temperature data in real time and send the data and ground images to the terminal device. When the UAV inspection unit arrives above the signal acquisition terminal, it receives the horizontal and vertical temperature data of the leaking pipeline and sends it to the terminal device. The terminal device then sets the temperature data according to a preset temperature range and inserts the corresponding color into the ground image for display.

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