A natural gas PE pipeline depth detection method, device, electronic equipment and storage medium

Abstract

The present invention discloses a natural gas PE pipeline depth detection method, device, electronic device and storage medium, the method comprises: obtaining a detection signal of a ground detection point in a transmitter signal radiation area, wherein the transmitter is located in a maintenance well closest to the pipeline to be detected; obtaining the horizontal distance of the detection point from the transmitter, the depth of the detection point from the PE pipeline and the maximum amplitude value of the signal transmitted by the transmitter; determining the signal depth attenuation coefficient in the signal radiation area; collecting multiple radiation signals at multiple locations in the transmitter signal radiation area, and determining the position and detection position of the PE pipeline according to the collection position corresponding to the signal with the largest signal value among the multiple radiation signals, and determining the buried depth of the PE pipeline. The present invention fully considers the factors of attenuation of the detector signal strength in different underground environments, thereby achieving the purpose of accurately detecting the pipeline depth.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline detection, and in particular to a natural gas PE pipeline depth detection method, device, electronic equipment and storage medium. Background Art

[0002] PE (Polyethylene) pipes have the advantages of low temperature resistance, good toughness, flexibility, and corrosion and leakage resistance, so they are widely used in the field of deep buried pipes. However, PE pipes also have some disadvantages. They are not conductive and magnetic, resulting in no effective method to directly detect their underground spatial position on the ground.

[0003] In the past municipal construction, because the exact depth of such pipelines was difficult to ascertain, construction machinery often leaked or cut gas pipelines, and gas pipeline leaks and explosions occurred from time to time. The commonly used pipeline detectors detect the pipeline depth by receiving electrical signals, but do not consider the impact of the underground environment of the current pipeline burial location on the signal attenuation, so the detected pipeline depth will produce errors. Summary of the invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies and provide a natural gas PE pipeline depth detection method, device, electronic equipment and storage medium to solve the technical problem that the influence of the geological environment on the signal attenuation degree of the detector is not considered when using the detector to detect the pipeline depth in the prior art.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a natural gas PE pipeline depth detection method, comprising:

[0007] Acquire a detection signal from a ground detection point within a transmitter signal radiation area, wherein the transmitter is located in a maintenance well closest to the pipeline to be detected;

[0008] Obtaining the horizontal distance between the detection point and the transmitter, the depth between the detection point and the PE pipe, and the maximum amplitude value of the signal transmitted by the transmitter;

[0009] Determine the signal depth attenuation coefficient in the signal radiation area according to the relationship between the detection signal and the horizontal distance between the detection point and the transmitter, the depth of the detection point from the PE pipe, the maximum amplitude value of the signal transmitted by the transmitter, the distance attenuation coefficient and the signal propagation coefficient;

[0010] Collect multiple radiation signals at multiple locations within the signal radiation area of ​​the transmitter, and determine the position and detection position of the PE pipeline according to the collection position corresponding to the signal with the largest signal value among the multiple radiation signals;

[0011] The buried depth of the PE pipeline is determined according to the relationship between the detection position, the maximum radiation signal, the maximum amplitude value of the transmitter transmission signal, the signal propagation coefficient, the distance attenuation coefficient and the depth attenuation coefficient and the buried depth of the PE pipeline.

[0012] In some embodiments, the signal depth attenuation coefficient in the signal radiation area is determined according to the relationship between the detection signal and the horizontal distance between the detection point and the transmitter, the depth of the detection point from the PE pipe, the maximum amplitude value of the signal transmitted by the transmitter, the distance attenuation coefficient and the signal propagation coefficient, which can be expressed by the following formula:

[0013] Among them, A represents the detection signal, A0 represents the maximum amplitude value of the signal transmitted by the transmitter, c is the signal propagation coefficient, μ1 represents the distance attenuation coefficient of the collected signal, d represents the horizontal distance between the detection point and the transmitter, μ2 represents the depth attenuation coefficient of the collected signal, and h represents the buried depth of the pipeline at the detection point.

[0014] In some embodiments, the collecting of multiple radiation signals at multiple locations within the signal radiation area of ​​the transmitter, and determining the position and detection position of the PE pipeline according to the collecting position corresponding to the signal with the largest signal value among the multiple radiation signals, includes:

[0015] Determining a plurality of detection positions within the radiation area, and acquiring radiation signals at different detection positions;

[0016] Preprocessing the multiple radiation signals to obtain multiple preselected radiation signals after processing;

[0017] Selecting a group of signals with the highest signal strength among the multiple pre-selected radiation signals, determining a corresponding collection position according to the group of signals with the highest signal strength, and marking it as the position of the PE pipeline;

[0018] The detection position is determined according to the position of the PE pipe.

[0019] In some embodiments, the preprocessing of the plurality of radiation signals to obtain a plurality of processed preselected radiation signals comprises:

[0020] Using a preset sliding average method to perform noise reduction processing on the multiple radiation signals to obtain multiple candidate radiation signals;

[0021] The plurality of candidate radiation signals are filtered using a preset filtering method to obtain a plurality of preselected radiation signals.

[0022] In some embodiments, the relationship between the detection position and the buried depth of the PE pipe includes:

[0023] According to the detection position, a horizontal distance between the detection position and the transmitter is determined.

[0024] In some embodiments, determining the buried depth of the PE pipeline according to the relationship between the detection position, the maximum radiation signal, the maximum amplitude value of the transmitter transmission signal, the signal propagation coefficient, the distance attenuation coefficient and the depth attenuation coefficient and the buried depth of the PE pipeline includes:

[0025] Based on the measurability of the detection position, the maximum radiation signal, the maximum amplitude value of the signal transmitted by the transmitter, and the signal propagation coefficient, constructing a correlation relationship between the detection position, the maximum radiation signal, the maximum amplitude value of the signal transmitted by the transmitter, and the signal propagation coefficient;

[0026] The burial depth of the PE pipe is determined according to the monotonic relationship between the association relationship and the burial depth of the PE pipe.

[0027] In some embodiments, the determination of the burial depth of the PE pipe according to the monotonic relationship between the association relationship and the burial depth of the PE pipe can be expressed by the following formula:

[0028]

[0029] Among them, B is the correlation relationship, A represents the detection signal at the detection position, A0 represents the maximum amplitude value of the signal transmitted by the transmitter, c is the signal propagation coefficient, μ1 represents the distance attenuation coefficient of the collected signal, d represents the horizontal distance between the detection point and the transmitter, μ2 represents the depth attenuation coefficient of the collected signal, and h represents the buried depth of the pipeline at the detection point.

[0030] In a second aspect, the present invention further provides a natural gas PE pipeline depth detection device, comprising:

[0031] A detection signal acquisition module, used to acquire detection signals from ground detection points within a transmitter signal radiation area, wherein the transmitter is located in a maintenance well closest to the pipeline to be detected;

[0032] A constant acquisition module, used to obtain the horizontal distance between the detection point and the transmitter, the depth between the detection point and the PE pipe, and the maximum amplitude value of the signal transmitted by the transmitter;

[0033] A signal depth attenuation coefficient determination module is used to determine the signal depth attenuation coefficient in the signal radiation area according to the relationship between the detection signal and the horizontal distance between the detection point and the transmitter, the depth of the detection point from the PE pipe, the maximum amplitude value of the signal transmitted by the transmitter, the distance attenuation coefficient and the signal propagation coefficient;

[0034] A pipeline position determination module, used to collect multiple radiation signals at multiple positions within the signal radiation area of ​​the transmitter, and determine the position and detection position of the PE pipeline according to the collection position corresponding to the signal with the largest signal value among the multiple radiation signals;

[0035] The burial depth determination module is used to determine the burial depth of the PE pipeline according to the relationship between the detection position, the maximum radiation signal, the maximum amplitude value of the transmitter transmission signal, the signal propagation coefficient, the distance attenuation coefficient and the depth attenuation coefficient and the burial depth of the PE pipeline.

[0036] In a third aspect, the present invention further provides an electronic device, comprising: a processor and a memory;

[0037] The memory stores a computer-readable program executable by the processor;

[0038] When the processor executes the computer-readable program, the steps in the natural gas PE pipeline depth detection method described above are implemented.

[0039] In a fourth aspect, the present invention further provides a computer-readable storage medium storing one or more programs, wherein the one or more programs can be executed by one or more processors to implement the steps in the natural gas PE pipeline depth detection method as described above.

[0040] Compared with the prior art, the natural gas PE pipeline depth detection method, device, electronic device and storage medium provided by the present invention first obtain the detection signal of the ground detection point in the transmitter signal radiation area, wherein the position of the detection point from the transmitter and the depth of the detection point from the pipeline are known, and the depth attenuation coefficient of the signal in the current transmitter radiation area is determined by obtaining the detection signal of the detection point, as well as the horizontal distance of the detection point from the transmitter, the depth of the detection point from the PE pipeline, the maximum amplitude value of the transmitter signal, the distance attenuation coefficient and the relationship between the signal propagation coefficient, and the signal. Subsequently, signal collection is performed at multiple positions in the transmitter signal radiation area, and the position and detection position of the PE pipeline are determined according to the collection position corresponding to the signal with the largest signal value among the multiple radiation signals collected; finally, the buried depth of the PE pipeline is determined according to the relationship between the detection position, the maximum radiation signal, the maximum amplitude value of the transmitter signal, the signal propagation coefficient, the distance attenuation coefficient and the depth attenuation coefficient and the buried depth of the PE pipeline. The present invention determines the depth attenuation coefficient of the signal in the current detection point area, and then detects the depth of the PE pipeline based on the depth attenuation coefficient in the current detection area, taking into account the factor of attenuation of the detector signal intensity in different underground environments, thereby achieving the purpose of accurately detecting the pipeline depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a flow chart of an embodiment of the natural gas PE pipeline depth detection method provided by the present invention;

[0042] Figure 2 It is a flow chart of an embodiment of step S104 in the natural gas PE pipeline depth detection method provided by the present invention;

[0043] Figure 3 It is a flow chart of an embodiment of step S105 in the natural gas PE pipeline depth detection method provided by the present invention;

[0044] Figure 4 It is a schematic diagram of pipeline depth calculation results in the natural gas PE pipeline depth detection method provided by the present invention;

[0045] Figure 5 It is a schematic diagram of an embodiment of a natural gas PE pipeline depth detection device provided by the present invention;

[0046] Figure 6 It is a schematic diagram of the operating environment of an electronic device provided by the present invention. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] Natural gas PE pipelines are an important part of urban underground pipelines. Due to historical reasons, some old underground pipelines have no drawings or inaccurate drawings, ground references have changed or disappeared, and the original landmark positions are inaccurate, making it impossible to know the exact location of underground pipelines. It has brought great difficulties in the construction of municipal pipeline intersections, management and maintenance of gas pipeline network safety, and brought great hidden dangers to urban safety, especially when conducting pipeline inspections or excavation operations within the pipeline laying range. If the depth of the pipeline cannot be accurately detected, the pipeline may be broken and cause natural gas leakage accidents, causing great losses and bringing great inconvenience to people's lives and production.

[0049] The natural gas PE pipeline depth detection method, device, equipment or computer-readable storage medium involved in the present invention can be used for pipeline depth detection operations in different underground environments, such as tunnels, concrete, soil and other environments above the pipeline. By analyzing the signal attenuation degree of different underground environments, the buried depth of the pipeline in the current range can be determined according to the signal attenuation coefficient of the current range, which can improve the accuracy of pipeline depth detection. The method, device, equipment or computer-readable storage medium involved in the present invention can be integrated with the above system or relatively independent.

[0050] Figure 1 This is a flow chart of the natural gas PE pipeline depth detection method provided by the embodiment of the present invention. Figure 1 , the natural gas PE pipeline depth detection methods include:

[0051] S101, acquiring a detection signal from a ground detection point within a transmitter signal radiation area, wherein the transmitter is located in a maintenance well closest to a pipeline to be detected;

[0052] S102, obtaining the horizontal distance between the detection point and the transmitter, the depth between the detection point and the PE pipe, and the maximum amplitude value of the signal transmitted by the transmitter;

[0053] S103, determining the signal depth attenuation coefficient in the signal radiation area according to the relationship between the detection signal and the horizontal distance between the detection point and the transmitter, the depth of the detection point from the PE pipe, the maximum amplitude value of the signal transmitted by the transmitter, the distance attenuation coefficient and the signal propagation coefficient;

[0054] S104, collecting multiple radiation signals at multiple locations within the signal radiation area of ​​the transmitter, and determining the position and detection position of the PE pipeline according to the collection position corresponding to the signal with the largest signal value among the multiple radiation signals;

[0055] S105, determining the buried depth of the PE pipeline according to the relationship between the detection position, the maximum radiation signal, the maximum amplitude value of the transmitter transmission signal, the signal propagation coefficient, the distance attenuation coefficient and the depth attenuation coefficient and the buried depth of the PE pipeline.

[0056] In this embodiment, the detection signal of the ground detection point in the transmitter signal radiation area is first obtained, wherein the position of the detection point from the transmitter and the depth of the detection point from the pipeline are known, and the depth attenuation coefficient of the signal in the current transmitter radiation area is determined by obtaining the detection signal of the detection point, the horizontal distance of the detection point from the transmitter, the depth of the detection point from the PE pipeline, the maximum amplitude value of the transmitter signal, the distance attenuation coefficient and the relationship between the signal propagation coefficient, and then the signal is collected at multiple positions in the transmitter signal radiation area, and the position and detection position of the PE pipeline are determined according to the collection position corresponding to the signal with the largest signal value among the collected multiple radiation signals; finally, the buried depth of the PE pipeline is determined according to the relationship between the detection position, the maximum radiation signal, the maximum amplitude value of the transmitter signal, the signal propagation coefficient, the distance attenuation coefficient and the depth attenuation coefficient and the buried depth of the PE pipeline. The present invention detects the depth of the PE pipeline by determining the depth attenuation coefficient of the signal in the current detection point area, and then based on the depth attenuation coefficient in the current detection area, the depth of the PE pipeline is detected, and the factors of attenuation of the detector signal strength in different underground environments are taken into account, thereby achieving the purpose of accurately detecting the pipeline depth.

[0057] It should be noted that the transmitter is placed at the bottom of the inspection well, where the inspection wells are distributed around the pipeline. The transmitter signal radiation area is the actual detectable range of the inspection well where the current transmitter is located. The distance attenuation coefficient of the transmitted signal is an empirical coefficient, which can be obtained by consulting the data or based on previous detection records. The signal propagation coefficient is a constant.

[0058] In some embodiments, the signal depth attenuation coefficient in the signal radiation area is determined according to the relationship between the detection signal and the horizontal distance between the detection point and the transmitter, the depth of the detection point from the PE pipe, the maximum amplitude value of the signal transmitted by the transmitter, the distance attenuation coefficient and the signal propagation coefficient, which can be expressed by the following formula:

[0059] Among them, A represents the detection signal, A0 represents the maximum amplitude value of the signal transmitted by the transmitter, c is the signal propagation coefficient, μ1 represents the distance attenuation coefficient of the collected signal, d represents the horizontal distance between the detection point and the transmitter, μ2 represents the depth attenuation coefficient of the collected signal, and h represents the buried depth of the pipeline at the detection point.

[0060] In this embodiment, the above-mentioned company can intuitively calculate the quantitative relationship between the pipeline depth and the horizontal distance between the detection point and the transmitter, the depth of the detection point from the PE pipeline, the maximum amplitude value of the transmitter's transmitted signal, the distance attenuation coefficient and the signal propagation coefficient.

[0061] In some embodiments, see Figure 2 The method collects a plurality of radiation signals at a plurality of locations within the signal radiation area of ​​the transmitter, and determines the position and detection position of the PE pipeline according to the collection position corresponding to the signal with the largest signal value among the plurality of radiation signals, including:

[0062] S201, determining a plurality of collection positions within the radiation area, and acquiring radiation signals at different detection positions;

[0063] S202, preprocessing the multiple radiation signals to obtain multiple pre-selected radiation signals after processing;

[0064] S203, selecting a group of signals with the highest signal strength among the multiple pre-selected radiation signals, determining a corresponding collection position according to the group of signals with the highest signal strength, and marking it as the position of the PE pipeline;

[0065] S204: Determine the detection position according to the position of the PE pipe.

[0066] In this embodiment, due to the age or some other special reasons, the position of the pipeline cannot be accurately located, so it is impossible to detect the depth of the pipeline or it will cause large errors in the pipeline depth detection. Therefore, it is necessary to arrange multiple collection positions in the area where the pipeline may exist, and obtain radiation signals from multiple collection positions, wherein the collection positions are distributed near the inspection wells; it can be understood that there are multiple inspection wells distributed around each natural gas pipeline. Since the direction and exact position of the pipeline cannot be clearly located, multiple inspection wells and multiple detection positions can not only obtain the approximate direction of the pipeline, but also reflect the specific position of the pipeline through multiple radiation signals. Specifically, the collection position where the signal maximum value is located in multiple radiation signals is selected, and the collection position is the location of the pipeline. Subsequently, signal collection is also performed at this position to perform depth detection operations on the pipeline.

[0067] In some embodiments, the preprocessing of the plurality of radiation signals to obtain a plurality of processed preselected radiation signals comprises:

[0068] Using a preset sliding average method to perform noise reduction processing on the multiple radiation signals to obtain multiple candidate radiation signals;

[0069] The plurality of candidate radiation signals are filtered using a preset filtering method to obtain a plurality of preselected radiation signals.

[0070] In this embodiment, by preprocessing the signal, the obtained information can accurately reflect the test requirements. Specifically, a sliding average method, a mean function or a convolution function method is generally used to remove noise; a Butterworth filter bandpass filter is generally used; and an autocorrelation function is used for processing.

[0071] In some embodiments, the relationship between the detection position and the buried depth of the PE pipe includes:

[0072] According to the detection position, a horizontal distance between the detection position and the transmitter is determined.

[0073] In this embodiment, after the detection position is determined, the horizontal distance between the detection position and the transmitter can be determined according to the location of the transmitter.

[0074] In some embodiments, see Figure 3 The method of determining the buried depth of the PE pipeline according to the relationship between the detection position, the maximum radiation signal, the maximum amplitude value of the transmitter transmission signal, the signal propagation coefficient, the distance attenuation coefficient and the depth attenuation coefficient and the buried depth of the PE pipeline includes:

[0075] S301, constructing a correlation relationship among the detection position, the maximum radiation signal, the maximum amplitude value of the signal transmitted by the transmitter, and the signal propagation coefficient based on the measurability of the detection position, the maximum radiation signal, the maximum amplitude value of the signal transmitted by the transmitter, and the signal propagation coefficient;

[0076] S302: Determine the burial depth of the PE pipeline according to the monotonic relationship between the association relationship and the burial depth of the PE pipeline.

[0077] In this embodiment, the maximum amplitude value of the collected signal, the maximum amplitude value of the signal transmitted by the transmitter, the propagation coefficient (constant) c, the distance attenuation coefficient of the collected signal (empirical value), the horizontal distance between the detection position and the transmitter, and the depth attenuation coefficient of the collected signal are all known quantities, and the buried depth of the pipeline at the collection point can be calculated.

[0078] It should be noted that the relationship between the above quantities at this time is difficult to obtain an analytical solution as a transcendental equation. However, when other values ​​are known, the equation curve of the amplitude value of the collected signal with the pipeline depth at the detection position as the dependent variable is a monotonically decreasing function, so it is relatively easy to obtain a numerical solution that meets the required accuracy.

[0079] Furthermore, it can be seen from the above that, while keeping the signal transmission intensity constant, there are only two variables, namely the horizontal distance d between the detection position and the transmitter, and the buried depth h of the pipeline at the collection point. After combining the constants, the following transcendental equation can be obtained:

[0080] (Transcendental equation), where B is the correlation relationship, A represents the detection signal at the detection position, A0 represents the maximum amplitude value of the signal transmitted by the transmitter, c is the signal propagation coefficient, μ1 represents the distance attenuation coefficient of the collected signal, d represents the horizontal distance between the detection point and the transmitter, μ2 represents the depth attenuation coefficient of the collected signal, and h represents the buried depth of the pipeline at the detection point.

[0081] Furthermore, for each determined horizontal distance d, the value of the equation is a monotonically decreasing function of the pipeline depth h at the detection location, so there is no need to solve the transcendental equation, and the corresponding value can be directly found on the equation curve. Figure 4 For different horizontal distances d, the buried depth h of the pipeline at the collection point is used as the X-axis, and B after the combined calculation constant is used as the Y-axis, and several curves can be drawn; in a specific embodiment, for example, in a certain detection, the value of B after the combined calculation constant is calculated to be 1, which can be Figure 4 The point on the curve corresponding to the horizontal distance d where the y value is closest to 1, the obtained x value is the approximate value of the pipeline burial depth h of the required collection point.

[0082] Based on the above-mentioned natural gas PE pipeline depth detection method, the embodiment of the present invention also provides a natural gas PE pipeline depth detection device 500, please refer to Figure 5 The natural gas PE pipeline depth detection device 500 includes a detection signal acquisition module 510, a constant acquisition module 520, a signal depth attenuation coefficient determination module 530, a pipeline position determination module 540 and a buried depth determination module 550; wherein:

[0083] A detection signal acquisition module 510 is used to acquire a detection signal from a ground detection point within a transmitter signal radiation area, wherein the transmitter is located in a maintenance well closest to the pipeline to be detected;

[0084] The constant acquisition module 520 is used to obtain the horizontal distance between the detection point and the transmitter, the depth between the detection point and the PE pipe, and the maximum amplitude value of the signal transmitted by the transmitter;

[0085] The signal depth attenuation coefficient determination module 530 is used to determine the signal depth attenuation coefficient in the signal radiation area according to the relationship between the detection signal and the horizontal distance between the detection point and the transmitter, the depth of the detection point from the PE pipe, the maximum amplitude value of the signal transmitted by the transmitter, the distance attenuation coefficient and the signal propagation coefficient;

[0086] The pipeline position determination module 540 is used to collect multiple radiation signals at multiple positions within the radiation area of ​​the transmitter signal, and determine the position and detection position of the PE pipeline according to the collection position corresponding to the signal with the largest signal value among the multiple radiation signals;

[0087] The burial depth determination module 550 is used to determine the burial depth of the PE pipeline according to the relationship between the detection position, the maximum radiation signal, the maximum amplitude value of the transmitter transmission signal, the signal propagation coefficient, the distance attenuation coefficient and the depth attenuation coefficient and the burial depth of the PE pipeline.

[0088] like Figure 6 As shown, based on the above natural gas PE pipeline depth detection method, the present invention also provides an electronic device, which can be a computing device such as a mobile terminal, a desktop computer, a notebook, a palm computer, and a server. The electronic device includes a processor 610, a memory 620, and a display 630. Figure 6 Only some components of the electronic device are shown, but it should be understood that it is not required to implement all of the components shown, and more or fewer components may be implemented instead.

[0089] In some embodiments, the memory 620 may be an internal storage unit of the electronic device, such as a hard disk or memory of the electronic device. In other embodiments, the memory 620 may also be an external storage device of the electronic device, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the electronic device. Further, the memory 620 may also include both an internal storage unit of the electronic device and an external storage device. The memory 620 is used to store application software and various types of data installed in the electronic device, such as program codes installed in the electronic device. The memory 620 may also be used to temporarily store data that has been output or is to be output. In one embodiment, a natural gas PE pipeline depth detection program 640 is stored on the memory 620, and the natural gas PE pipeline depth detection program 640 can be executed by the processor 610, thereby realizing the natural gas PE pipeline depth detection method of each embodiment of the present application.

[0090] In some embodiments, the processor 610 may be a central processing unit (CPU), a microprocessor or other data processing chip, used to run program codes or process data stored in the memory 620, such as executing a natural gas PE pipeline depth detection method.

[0091] In some embodiments, the display 630 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch device, etc. The display 630 is used to display information on the natural gas PE pipeline depth detection device and to display a visual user interface. The components 610-630 of the electronic device communicate with each other via a system bus.

[0092] Of course, those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing related hardware (such as a processor, a controller, etc.) through a computer program, and the program can be stored in a computer-readable storage medium, and the program can include the processes of the above-mentioned method embodiments when executed. The storage medium can be a memory, a disk, an optical disk, etc.

[0093] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A natural gas PE pipeline depth detection method, characterized in that: include: Acquire a detection signal from a ground detection point within a transmitter signal radiation area, wherein the transmitter is located in a maintenance well closest to the pipeline to be detected; Obtaining the horizontal distance between the detection point and the transmitter, the depth between the detection point and the PE pipe, and the maximum amplitude value of the signal transmitted by the transmitter; Determine the signal depth attenuation coefficient in the signal radiation area according to the relationship between the detection signal and the horizontal distance between the detection point and the transmitter, the depth of the detection point from the PE pipe, the maximum amplitude value of the signal transmitted by the transmitter, the distance attenuation coefficient and the signal propagation coefficient; Collect multiple radiation signals at multiple locations within the signal radiation area of ​​the transmitter, and determine the position and detection position of the PE pipeline according to the collection position corresponding to the signal with the largest signal value among the multiple radiation signals; The buried depth of the PE pipeline is determined according to the relationship between the detection position, the maximum radiation signal, the maximum amplitude value of the transmitter transmission signal, the signal propagation coefficient, the distance attenuation coefficient and the depth attenuation coefficient and the buried depth of the PE pipeline.

2. The natural gas PE pipeline depth detection method according to claim 1, characterized in that: The signal depth attenuation coefficient in the signal radiation area is determined according to the relationship between the detection signal and the horizontal distance between the detection point and the transmitter, the depth of the detection point from the PE pipe, the maximum amplitude value of the signal transmitted by the transmitter, the distance attenuation coefficient and the signal propagation coefficient, which can be expressed by the following formula: , in, Represents the detection signal, Indicates the maximum amplitude of the signal transmitted by the transmitter. is the signal propagation coefficient, Represents the distance attenuation coefficient of the collected signal, Indicates the horizontal distance between the detection point and the transmitter. represents the depth attenuation coefficient of the acquired signal, Indicates the buried depth of the pipeline at the detection point.

3. The natural gas PE pipeline depth detection method according to claim 1, characterized in that: The method of collecting multiple radiation signals at multiple locations within the signal radiation area of ​​the transmitter, and determining the position and detection position of the PE pipeline according to the collection position corresponding to the signal with the largest signal value among the multiple radiation signals, includes: Determine a plurality of collection positions within the radiation area, and obtain radiation signals at different collection positions; Preprocessing the multiple radiation signals to obtain multiple preselected radiation signals after processing; Selecting a group of signals with the highest signal strength among the multiple pre-selected radiation signals, determining a corresponding collection position according to the group of signals with the highest signal strength, and marking it as the position of the PE pipeline; The detection position is determined according to the position of the PE pipe.

4. The natural gas PE pipeline depth detection method according to claim 3 is characterized in that: The preprocessing of the plurality of radiation signals to obtain a plurality of preselected radiation signals after processing comprises: Using a preset sliding average method to perform noise reduction processing on the multiple radiation signals to obtain multiple candidate radiation signals; The plurality of candidate radiation signals are filtered using a preset filtering method to obtain a plurality of preselected radiation signals.

5. The natural gas PE pipeline depth detection method according to claim 1, characterized in that: The method according to the relationship between the detection position and the buried depth of the PE pipeline includes: According to the detection position, a horizontal distance between the detection position and the transmitter is determined.

6. The natural gas PE pipeline depth detection method according to claim 1, characterized in that: The method of determining the buried depth of the PE pipeline according to the relationship between the detection position, the maximum radiation signal, the maximum amplitude value of the transmitter transmission signal, the signal propagation coefficient, the distance attenuation coefficient, the depth attenuation coefficient and the buried depth of the PE pipeline includes: Based on the measurability of the detection position, the maximum radiation signal, the maximum amplitude value of the signal transmitted by the transmitter, and the signal propagation coefficient, constructing a correlation relationship between the detection position, the maximum radiation signal, the maximum amplitude value of the signal transmitted by the transmitter, and the signal propagation coefficient; The burial depth of the PE pipe is determined according to the monotonic relationship between the association relationship and the burial depth of the PE pipe.

7. The natural gas PE pipeline depth detection method according to claim 1, characterized in that: The burying depth of the PE pipe is determined according to the monotonic relationship between the association relationship and the burying depth of the PE pipe, which can be expressed by the following formula: , , Among them, B is the association relationship, represents the detection signal at the detection position, Indicates the maximum amplitude of the signal transmitted by the transmitter. is the signal propagation coefficient, Represents the distance attenuation coefficient of the collected signal, Indicates the horizontal distance between the detection point and the transmitter. represents the depth attenuation coefficient of the acquired signal, Indicates the buried depth of the pipeline at the detection point.

8. A natural gas PE pipeline depth detection device, characterized in that: include: A detection signal acquisition module, used to acquire detection signals from ground detection points within a transmitter signal radiation area, wherein the transmitter is located in a maintenance well closest to the pipeline to be detected; A constant acquisition module, used to obtain the horizontal distance between the detection point and the transmitter, the depth between the detection point and the PE pipe, and the maximum amplitude value of the signal transmitted by the transmitter; A signal depth attenuation coefficient determination module is used to determine the signal depth attenuation coefficient in the signal radiation area according to the relationship between the detection signal and the horizontal distance between the detection point and the transmitter, the depth of the detection point from the PE pipe, the maximum amplitude value of the signal transmitted by the transmitter, the distance attenuation coefficient and the signal propagation coefficient; A pipeline position determination module, used to collect multiple radiation signals at multiple positions within the signal radiation area of ​​the transmitter, and determine the position and detection position of the PE pipeline according to the collection position corresponding to the signal with the largest signal value among the multiple radiation signals; The burial depth determination module is used to determine the burial depth of the PE pipeline according to the relationship between the detection position, the maximum radiation signal, the maximum amplitude value of the transmitter transmission signal, the signal propagation coefficient, the distance attenuation coefficient and the depth attenuation coefficient and the burial depth of the PE pipeline.

9. An electronic device, characterized in that: include: Processor and memory; The memory stores a computer-readable program executable by the processor; When the processor executes the computer-readable program, the steps in the natural gas PE pipeline depth detection method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps in the natural gas PE pipeline depth detection method as described in any one of claims 1-7.

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