Electric pole burial depth measuring method, system and equipment based on knocking vibration echo and medium

Abstract

The invention discloses an electric pole burial depth measuring method, system and device based on knocking vibration echoes and a medium, and the method comprises the steps: applying knocking excitation to a part, exposed out of the ground, of an electric pole, and collecting a vibration response signal excited by the knocking excitation; performing spectral analysis to obtain fundamental frequency information and high-order frequency information; calculating to obtain frequency ratio information; and pre-storing frequency ratio-burial depth mapping relation information, matching the frequency ratio information with the pre-stored frequency ratio-burial depth mapping relation information, and outputting an electric pole burial depth result. Through an innovative algorithm based on frequency ratio information, the defects that a traditional method depends on archives and is low in efficiency and poor in precision are overcome; standardized excitation and vibration response signal acquisition, spectrum analysis and query output are combined, the objectivity, reliability and engineering practicability of detection are improved, the method is suitable for large-scale field general survey, and rapid, accurate and lossless burial depth measurement under the condition that the total length of the electric pole is unknown is achieved.

Description

Technical Field

[0001] This invention relates to the field of engineering testing and non-destructive testing technology, and in particular to a method, system, equipment and medium for measuring the burial depth of utility poles based on impact vibration echoes. Background Technology

[0002] As a crucial component of infrastructure networks such as power and communications, the burial depth of utility poles is a key parameter for assessing their structural stability and safety. Insufficient burial depth can easily lead to pole tilting or even collapse, causing serious operational accidents and economic losses. Therefore, achieving rapid, accurate, and non-destructive testing of pole burial depth is of great engineering significance for ensuring public safety and conducting facility surveys and preventative maintenance.

[0003] Currently, the methods for measuring the burial depth of utility poles mainly consist of traditional methods such as excavation verification and empirical estimation. These methods are either inefficient and damaging to the site, or have poor accuracy and are highly subjective, making it difficult to meet the needs of large-scale, rapid, and highly reliable engineering inspections. In addition, some non-destructive testing methods based on vibration principles, while avoiding damage to the ground, heavily rely on the premise that the total length of the pole is known. In actual engineering projects, the loss of pole nameplates and incomplete documentation are extremely common, causing these methods to often fail in practical applications and greatly limiting their applicability. Summary of the Invention

[0004] In view of the aforementioned existing problems, the present invention is proposed.

[0005] Therefore, this invention provides a method, system, equipment, and medium for measuring the burial depth of utility poles based on impact vibration echoes. This addresses the problems of existing utility pole burial depth measurement technologies, such as traditional methods like excavation verification and empirical estimation, which are inefficient, destructive, and inaccurate. Furthermore, although vibration-based non-destructive testing methods do not damage the ground, their algorithms heavily rely on the known total length of the pole, while in practice, pole nameplates and records are often missing, leading to method failure.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: In a first aspect, the present invention provides a method for measuring the burial depth of utility poles based on impact vibration echoes, comprising: A striking excitation was applied to the exposed part of the utility pole, and the vibration response signal excited by the striking excitation was collected; The vibration response signal is subjected to spectral analysis to obtain fundamental frequency information and higher-order frequency information; The frequency ratio information is calculated based on the fundamental frequency information and the higher-order frequency information. The frequency ratio-burial depth mapping information is pre-stored, and the frequency ratio information is matched with the pre-stored frequency ratio-burial depth mapping information to output the pole burial depth result.

[0007] As a preferred embodiment of the pole burial depth measurement method based on impact vibration echo described in this invention, the step of applying impact excitation to the exposed portion of the pole includes: A momentary strike is performed at a predetermined location on the exposed portion of the utility pole using a hammer or striking device.

[0008] The beneficial effects of this preferred technical solution are as follows: By employing a hammer or striking device to perform transient striking at a predetermined location, the excitation method is standardized and controllable, avoiding the uncertainty of manual striking force and position. Transient striking can effectively excite a broadband vibration signal of the pole, providing a data foundation for subsequent spectrum analysis, thereby ensuring the consistency of the measurement process and the repeatability of the results, and improving the engineering practicality of the method.

[0009] As a preferred embodiment of the pole burial depth measurement method based on impact vibration echo described in this invention, the step of acquiring the vibration response signal excited by the transient impact excitation includes: Install acceleration sensors on utility poles; The vibration response signal excited by the transient impact is acquired through the accelerometer.

[0010] The beneficial effects of this preferred technical solution are as follows: by setting up an accelerometer and acquiring the vibration response signal excited by transient impact, standardized capture of vibration characteristics is achieved. The accelerometer can effectively acquire broadband vibration acceleration time-domain signals, providing an accurate and objective data basis for subsequent spectrum analysis, avoiding subjective misjudgments such as manual listening, and improving the reliability of vibration response signal acquisition.

[0011] As a preferred embodiment of the pole burial depth measurement method based on impact vibration echo described in this invention, the steps of obtaining fundamental frequency information and higher-order frequency information include: The collected vibration response signal is subjected to spectral analysis to obtain the corresponding spectral information; Fundamental frequency information and higher-order frequency information are identified and extracted from the spectrum information.

[0012] The beneficial effects of this preferred technical solution are as follows: by performing spectral analysis on the vibration signal, an accurate conversion from the time domain to the time-frequency domain is achieved, and the fundamental frequency information and higher-order frequency information characterizing the vibration characteristics of the pole are separated and identified. This provides a reliable and quantitative data basis for subsequent frequency ratio information calculation, avoids the subjectivity and inaccuracy of the traditional listening method, and ensures the objectivity and scientific nature of feature parameter extraction.

[0013] As a preferred embodiment of the pole burial depth measurement method based on impact vibration echo described in this invention, the step of calculating the frequency ratio information includes: A specific order frequency from the extracted higher-order frequency information is compared with the fundamental frequency information to calculate a frequency ratio information characterizing the vibration characteristics of the pole.

[0014] The beneficial effects of this preferred technical solution are as follows: by calculating the ratio of higher-order frequency information to fundamental frequency information of a specific order frequency, the characteristic quantity frequency ratio information that is related to the burial depth of the pole and is insensitive to the total length is obtained. The frequency ratio information eliminates the influence of environmental and material differences on the absolute frequency value, improves robustness and applicability, and enables accurate and non-destructive burial depth measurement when the total length of the pole is unknown.

[0015] As a preferred embodiment of the pole burial depth measurement method based on impact vibration echo described in this invention, the step of pre-storing frequency ratio-burial depth mapping information includes: By conducting calibration experiments on similar poles or by using finite element simulation, the correlation between frequency ratio information and pole burial depth is established. The correspondence between the frequency ratio information and the pole burial depth is stored as a queryable frequency ratio-burial depth mapping information.

[0016] The beneficial effects of this preferred technical solution are as follows: by establishing and storing the frequency ratio-burial depth mapping relationship information in advance through calibration experiments or finite element simulation, a reliable and reproducible measurement benchmark is constructed, providing a scientific basis that can be checked and used immediately for on-site measurement, avoiding complex on-site calculations and subjective intervention, ensuring the objectivity and consistency of measurement results, and improving the engineering practicality of the detection and the feasibility of large-scale promotion.

[0017] As a preferred embodiment of the pole burial depth measurement method based on impact vibration echo described in this invention, the step of outputting the pole burial depth result includes: The frequency ratio information is matched with the frequency ratio-burial depth mapping information to obtain the pole burial depth value, and the pole burial depth value is visualized and output on the display module.

[0018] The beneficial effects of this preferred technical solution are as follows: by matching the frequency ratio information with the pre-stored frequency ratio-burial depth mapping information, and visually outputting the obtained pole burial depth value, the conversion from vibration signal to intuitive engineering parameter is realized, avoiding the error of manual table lookup and calculation, and improving measurement efficiency and readability of results; in addition, the intuitive output format makes it easy for on-site personnel to quickly obtain reliable conclusions, enhancing the engineering practicality and on-site operability of the test.

[0019] Secondly, the present invention provides a pole burial depth measurement system based on impact vibration echo, comprising: The impact excitation module is used to perform transient impacts on the exposed part of the utility pole. The sensor acquisition module is used to acquire vibration response signals excited by transient impacts; The signal processing module is used to perform spectral analysis on the vibration response signal and extract fundamental frequency information and higher-order frequency information; The calculation module is used to calculate the frequency ratio information based on the extracted fundamental frequency information and higher-order frequency information; The storage module is used to store the frequency ratio-burial depth mapping information; The data processing module is used to match the frequency ratio information with the frequency ratio-burial depth mapping relationship information to determine the pole burial depth result; The output module is used to output the result of the pole burial depth.

[0020] Thirdly, the present invention provides an electronic device, comprising: Memory and processor; The memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions, which, when executed by the processor, implement the steps of the pole burial depth measurement method based on impact vibration echo.

[0021] Fourthly, the present invention provides a computer-readable storage medium storing computer-executable instructions that, when executed by a processor, implement the steps of the pole burial depth measurement method based on impact vibration echo.

[0022] Compared with existing technologies, the beneficial effects of this invention are as follows: by using an innovative algorithm based on frequency ratio information, it overcomes the shortcomings of traditional methods, such as reliance on archives, low efficiency, and poor accuracy; by combining standardized excitation and vibration response signal acquisition, spectrum analysis, and query output, it improves the objectivity, reliability, and engineering practicality of the detection, making it suitable for large-scale field surveys and enabling rapid, accurate, and non-destructive measurement of burial depth when the total length of the pole is unknown. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall process of a pole burial depth measurement method based on impact vibration echo according to an embodiment of the present invention.

[0025] Figure 2 A system framework diagram for applying impact excitation in the method of measuring pole burial depth.

[0026] Figure 3 This is a schematic diagram of the calibration curve of frequency ratio information versus pole burial depth. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0028] Example 1, referring to Figures 1-3 As one embodiment of the present invention, a method for measuring the burial depth of utility poles based on impact vibration echoes is provided, comprising: S100. Apply a striking excitation to the exposed part of the pole and collect the vibration response signal generated by the striking excitation.

[0029] S200. Perform spectral analysis on the vibration response signal to obtain fundamental frequency information and higher-order frequency information.

[0030] S300. Based on the fundamental frequency information and the higher-order frequency information, the frequency ratio information is calculated.

[0031] S400: Pre-store frequency ratio-burial depth mapping information, match the frequency ratio information with the pre-stored frequency ratio-burial depth mapping information, and output the pole burial depth result.

[0032] It should be noted that the burial depth of the pole is a key parameter for assessing its stability. Traditional measurement methods, such as excavation verification, are inefficient and damage the ground, while empirical estimation methods are inaccurate and highly subjective. Furthermore, existing non-destructive testing methods based on vibration principles heavily rely on the total length of the pole being a known condition, which makes them difficult to apply in actual engineering projects due to lost pole nameplates and incomplete records.

[0033] Therefore, to address the aforementioned problems of low measurement efficiency, destructive nature, poor accuracy, and reliance on the known total length of the pole, the following steps (S100-S400) are used: first, an impact excitation is applied to the pole and the vibration response signal is collected; then, the vibration response signal is subjected to spectral analysis to obtain the fundamental frequency information and higher-order frequency information; next, the frequency ratio information is calculated; finally, the pole burial depth is obtained by matching the pre-stored frequency ratio-burial depth mapping relationship information, thus achieving rapid, accurate, and non-destructive measurement even when the total length of the pole is unknown.

[0034] Example 2, refer to Figures 1-3 As an embodiment of the present invention, based on the above embodiment, a method for measuring the burial depth of utility poles based on impact vibration echo is provided.

[0035] In this embodiment of the application, S100, an impact excitation is applied to the exposed portion of the utility pole, and the vibration response signal generated by the impact excitation is collected. This is applicable to a utility pole in the field with an unknown model and total length, but whose diameter is known. Taking the burial depth measurement of cement poles as an application scenario, the specific implementation of the steps for collecting the vibration response signals excited by the transient impact excitation in steps A1~A2 of S100 is as follows: A1. Install an acceleration sensor on the utility pole.

[0036] Specifically, such as Figure 2 As shown, a high-precision ICP-type accelerometer is firmly and vertically mounted on the top of the exposed part of the pole using a magnetic base or strong adhesive. The sensitive axis of the accelerometer is aligned with the possible lateral vibration direction of the pole to measure the lateral bending vibration acceleration.

[0037] A2. The vibration response signal excited by the transient impact is collected by the acceleration sensor.

[0038] Specifically, the sampling frequency of the data acquisition instrument is set to... The collection time is s. Simultaneously with the application of a transient impact, the data acquisition instrument is triggered to synchronously record the lateral bending vibration acceleration, thus obtaining the time-domain signal of the vibration acceleration. .

[0039] The step of applying a striking excitation to the exposed portion of the utility pole includes: A momentary strike is performed at a predetermined location on the exposed portion of the utility pole using a hammer or striking device.

[0040] Specifically, the operator uses a standard hammer to deliver a rapid, transient lateral strike to the pole body within the effective sensing area of ​​the accelerometer, approximately 0.1 m below the installation location of the top accelerometer. The effective sensing area is defined as the area of ​​the pole body within ±0.5 m of the installation location of the accelerometer.

[0041] In an optional implementation, step S100 may also involve using a standard hammer with a force sensor for striking, wherein the step is as follows: while performing a transient lateral strike, the force signal output by the hammer is recorded simultaneously. The force signal is compared with the vibration acceleration time-domain signal collected by the accelerometer. Synchronization alignment is performed for subsequent signal analysis and calculation.

[0042] In another optional implementation, step S100 can also collect vibration response signals at different heights of the exposed part of the pole. The steps are as follows: compare the signal-to-noise ratio and spectral clarity of the vibration response signals collected from different positions such as the top and middle, and select the group with the best vibration response signal quality for subsequent analysis to improve the reliability of identification.

[0043] In this embodiment of the application, step S200 involves performing spectral analysis on the vibration response signal to obtain fundamental frequency information and higher-order frequency information. Step S200 includes steps B1 to B2: B1. Perform spectral analysis on the collected vibration response signal to obtain the corresponding spectral information.

[0044] Specifically, the acquired vibration acceleration time-domain signal Preprocessing and spectral analysis were performed on the following: The mean was subtracted to eliminate the DC component, and a Hanning window was applied to the vibration acceleration time-domain signal to reduce spectral leakage. A Fast Fourier Transform (FFT) was then performed on the vibration acceleration time-domain signal to calculate the single-sided amplitude spectrum. The frequency resolution of the single-sided amplitude spectrum is The frequency range covers DC to Nyquist frequency. .

[0045] B2. Identify and extract fundamental frequency information and higher-order frequency information from the spectrum information.

[0046] Specifically, in the calculated one-sided amplitude spectrum In the middle, find the peak value in the low frequency range of 1Hz to 100Hz, identify the peak value with the largest amplitude, and the corresponding frequency. This refers to the fundamental frequency information, such as in the high-frequency band. to Find the next one within the range Peak values ​​that are approximately integer multiples of each other are used to identify frequencies. It was determined to be a second-order frequency, which is one of the higher-order frequency information.

[0047] In an optional implementation, step S200 may further involve bandpass filtering the time-domain signal before the FFT transform. The steps are as follows: before step B1, a bandpass filter of 1Hz to 200Hz is used to filter the vibration acceleration time-domain signal. Filtering is performed to suppress high-frequency noise and extremely low-frequency interference, thereby improving the signal-to-noise ratio and frequency peak identification in subsequent spectrum analysis.

[0048] In another optional implementation, a peak detection algorithm can also be used in step S200, wherein the steps are as follows: In step B2, a peak detection algorithm is written to scan the single-sided amplitude spectrum. Find all local maxima, and then determine and output the fundamental frequency information based on the peak amplitude using a peak detection algorithm. and second-order frequency The numerical values ​​enable the automation and objectification of frequency extraction.

[0049] In this embodiment of the application, step S300 involves calculating the frequency ratio information based on the fundamental frequency information and the higher-order frequency information. Step S300 includes: A specific order frequency from the extracted higher-order frequency information is compared with the fundamental frequency information to calculate a frequency ratio information characterizing the vibration characteristics of the pole.

[0050] Specifically, based on the extracted fundamental frequency information and second-order frequencies in higher-order frequency information According to the formula Calculate the frequency ratio information to obtain the second-order frequency ratio. This yields frequency ratio information that characterizes vibration properties.

[0051] In an optional implementation, step S300 may further calculate the ratios of multiple higher-order frequency information to the fundamental frequency information to enhance robustness. The steps include: in addition to calculating the second-order frequency ratio... In addition, the extracted third-order frequencies are calculated simultaneously. Third-order frequency ratio of fundamental frequency information The obtained multiple frequency ratio information, such as and Together, they serve as feature vectors characterizing vibration properties, providing higher confidence levels for subsequent matching steps or for cross-validation.

[0052] In another optional implementation, step S300 can also incorporate normalization processing based on the known physical dimensions of the pole, specifically: [The steps are as follows: Given the known pole diameter...] In this case, the calculated frequency ratio information Perform operations with the diameter to construct a dimensionless characteristic quantity. , such as calculation This further eliminates the systemic impact caused by differences in pole size, making the pre-stored frequency ratio-burial depth mapping information more universal and portable.

[0053] In this embodiment of the application, S400 involves pre-storing frequency ratio-burial depth mapping information. The frequency ratio information is matched with the pre-stored frequency ratio-burial depth mapping information to output the pole burial depth result. Step S400 includes steps D1~D3: D1. Establish the correspondence between frequency ratio information and pole burial depth through calibration experiments on similar poles or through finite element simulation.

[0054] Specifically, such as Figure 3 As shown, a calibration experiment was conducted on a diameter of... To establish the correlation between frequency ratio information and pole burial depth for cement poles of the same model, multiple poles of the same model were selected in the test field, and different known pole burial depths were set through excavation methods. For example, 1.0m, 1.2m, 1.4m, 1.6m, 1.8m, 2.0m; the burial depth of each pole is calculated by strictly following the S100-S300 steps. Corresponding frequency ratio information For all By fitting the data, a calibration curve is obtained showing the relationship between the frequency ratio information and the pole burial depth. The functional relationship of the calibration curve can be expressed as follows: .

[0055] D2. Store the correspondence between the frequency ratio information and the pole burial depth as a queryable frequency ratio-burial depth mapping relationship information.

[0056] Specifically, the calibration curve of D1 is discretized to generate a frequency ratio-burial depth lookup table and stored in the storage module, using the frequency ratio information. Use the key to query, with the corresponding pole burial depth value. For the result value, to improve query accuracy, in key intervals such as... From version 5.0 to 6.0, denser data points were used to fit the calibration curve function. The coefficients are stored together.

[0057] D3. Match the frequency ratio information with the frequency ratio-burial depth mapping information to obtain the pole burial depth value, and visualize the pole burial depth result on the display module.

[0058] Specifically, the calculated second-order frequency ratio of the current pole will be... As input, a lookup is performed in the frequency ratio-burial depth lookup table stored in D2. The result is found either by looking up the table or by calculating using the stored fitting calibration curve function. The corresponding pole burial depth value is The system then outputs a formatted result message on a display module such as an LCD screen: "Pole burial depth measurement result: 1.5 meters," thus completing one measurement.

[0059] In an optional implementation, step S400 can also utilize finite element simulation to efficiently establish a more universal mapping relationship. The steps are as follows: In step D1, a finite element model of the pole is established based on the Euler-Bernoulli beam theory, and spring elements are used to simulate the constraint stiffness of the soil at different pole burial depths. Through parametric analysis, various working conditions from shallow to deep burial are simulated, and the fundamental frequency information and second-order frequency ratio of the finite element model under various working conditions are calculated, thereby obtaining the theoretical... Relationship curves and store them.

[0060] In another optional implementation, step S400 can also construct and query a dimensionless mapping relationship to apply to poles of different diameters. The steps are as follows: in steps D1 and D2, establish and store the frequency ratio-dimensional burial depth. Mapping relationship information; in step D3, the calculated... With known diameter By combining the queries, the dimensionless burial depth can be obtained. Then calculate the pole burial depth. It is applicable to poles of the same model but different diameters.

[0061] In summary, this invention addresses the shortcomings of traditional methods, such as low efficiency, lossy operation, poor accuracy, and reliance on the known total length of the pole. It achieves rapid, accurate, and non-destructive measurement even under conditions where the total length is unknown, providing an efficient and reliable technical means for pole safety surveys and preventative maintenance. By applying standardized transient impacts to the exposed portion of the pole and collecting vibration response signals, and then extracting fundamental and higher-order frequency information via Fast Fourier Transform, the invention calculates frequency ratio information that is insensitive to the total length. This allows for matching and querying using a pre-stored frequency ratio-burial depth mapping relationship to output the burial depth result.

[0062] Example 3 illustrates a schematic scheme for a pole burial depth measurement method based on impact vibration echo. It should be noted that the technical solution of this pole burial depth measurement system based on impact vibration echo belongs to the same concept as the aforementioned pole burial depth measurement method based on impact vibration echo. Details not described in detail in this embodiment of the pole burial depth measurement system based on impact vibration echo can be found in the description of the aforementioned pole burial depth measurement method based on impact vibration echo.

[0063] This embodiment also provides a pole burial depth measurement system based on impact vibration echo, including: The impact excitation module is used to perform transient impacts on the exposed part of the utility pole. The sensor acquisition module is used to acquire vibration response signals excited by transient impacts; The signal processing module is used to perform spectral analysis on the vibration response signal and extract fundamental frequency information and higher-order frequency information; The calculation module is used to calculate the frequency ratio information based on the extracted fundamental frequency information and higher-order frequency information; The storage module is used to store the frequency ratio-burial depth mapping information; The data processing module is used to match the frequency ratio information with the frequency ratio-burial depth mapping relationship information to determine the pole burial depth result; The output module is used to output the result of the pole burial depth.

[0064] This embodiment also provides an electronic device suitable for measuring the burial depth of utility poles based on impact vibration echoes, comprising: a memory and a processor; the memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions to implement the method for measuring the burial depth of utility poles based on impact vibration echoes as proposed in the above embodiment.

[0065] This embodiment also provides a storage medium storing a computer program that, when executed by a processor, implements the pole burial depth measurement method based on impact vibration echo as proposed in the above embodiments.

[0066] The storage medium proposed in this embodiment and the method for measuring the burial depth of utility poles based on impact vibration echoes proposed in the above embodiments belong to the same inventive concept. Technical details not described in detail in this embodiment can be found in the above embodiments, and this embodiment has the same beneficial effects as the above embodiments.

[0067] Based on the above description of the implementation methods, those skilled in the art can clearly understand that the present invention can be implemented using software and necessary general-purpose hardware, and of course, it can also be implemented using hardware. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk, or optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of the various embodiments of the present invention.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A method for measuring the burial depth of utility poles based on impact vibration echoes, characterized in that, include: A striking excitation was applied to the exposed part of the utility pole, and the vibration response signal excited by the striking excitation was collected; The vibration response signal is subjected to spectral analysis to obtain fundamental frequency information and higher-order frequency information; The frequency ratio information is calculated based on the fundamental frequency information and the higher-order frequency information. The frequency ratio-burial depth mapping information is pre-stored, and the frequency ratio information is matched with the pre-stored frequency ratio-burial depth mapping information to output the pole burial depth result.

2. The method for measuring pole burial depth based on impact vibration echo as described in claim 1, characterized in that, The step of applying a striking excitation to the exposed portion of the utility pole includes: A momentary strike is performed at a predetermined location on the exposed portion of the utility pole using a hammer or striking device.

3. The method for measuring pole burial depth based on impact vibration echo as described in claim 2, characterized in that, The steps for acquiring the vibration response signal excited by the transient impact excitation include: Install acceleration sensors on utility poles; The vibration response signal excited by the transient impact is acquired through the accelerometer.

4. The method for measuring pole burial depth based on impact vibration echo as described in claim 3, characterized in that, The steps to obtain fundamental frequency information and higher-order frequency information include: The collected vibration response signal is subjected to spectral analysis to obtain the corresponding spectral information; Fundamental frequency information and higher-order frequency information are identified and extracted from the spectrum information.

5. The method for measuring the burial depth of utility poles based on impact vibration echoes as described in claim 4, characterized in that, The steps to calculate the frequency ratio information include: A specific order frequency from the extracted higher-order frequency information is compared with the fundamental frequency information to calculate a frequency ratio information characterizing the vibration characteristics of the pole.

6. The method for measuring the burial depth of utility poles based on impact vibration echoes as described in claim 5, characterized in that, The steps for pre-storing frequency ratio-burial depth mapping information include: By conducting calibration experiments on similar poles or by using finite element simulation, the correlation between frequency ratio information and pole burial depth can be established. The correspondence between the frequency ratio information and the pole burial depth is stored as a queryable frequency ratio-burial depth mapping information.

7. The method for measuring pole burial depth based on impact vibration echo as described in claim 6, characterized in that, The steps for outputting the pole burial depth results include: The frequency ratio information is matched with the frequency ratio-burial depth mapping information to obtain the pole burial depth value, and the pole burial depth value is visualized and output on the display module.

8. A pole burial depth measurement system based on impact vibration echo, using the method described in any one of claims 1-7, characterized in that, include: The impact excitation module is used to perform transient impacts on the exposed part of the utility pole. The sensor acquisition module is used to acquire vibration response signals excited by transient impacts; The signal processing module is used to perform spectral analysis on the vibration response signal and extract fundamental frequency information and higher-order frequency information; The calculation module is used to calculate the frequency ratio information based on the extracted fundamental frequency information and higher-order frequency information; The storage module is used to store the frequency ratio-burial depth mapping information; The data processing module is used to match the frequency ratio information with the frequency ratio-burial depth mapping relationship information to determine the pole burial depth result; The output module is used to output the result of the pole burial depth.

9. An electronic device, comprising: Memory and processor; The memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions. When the computer-executable instructions are executed by the processor, they implement the steps of the pole burial depth measurement method based on impact vibration echo as described in any one of claims 1 to 7.

10. A computer-readable storage medium storing computer-executable instructions that, when executed by a processor, implement the steps of the pole burial depth measurement method based on impact vibration echo as described in any one of claims 1 to 7.

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