Cable depth detection method and system based on three-dimensional space differential phase

Abstract

The invention relates to the technical field of cable detection, and discloses a three-dimensional space differential phase-based cable depth detection method and system, and the method comprises the steps: carrying out the depth detection of an underground cable through obtaining signal intensity data, signal phase data and signal frequency data, and carrying out the comprehensive analysis of the signal phase, frequency and intensity data, the depth of the cable can be more accurately positioned, measurement errors caused by different physical properties of soil are effectively reduced, the reliability of a detection result is improved, the anti-interference capability of the system can be remarkably enhanced through combined use of signal phases and frequencies, and errors are reduced and the reliability of data is improved especially in a complex environment.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and in particular to a cable depth detection method and system based on three-dimensional spatial differential phase. Background Art

[0002] Cables play a vital role in the infrastructure of modern society. Whether it is urban power supply, communication networks or industrial automation systems, cables are an indispensable component. However, since cables are usually buried underground or hidden in other difficult-to-detect locations, their maintenance and management face many challenges. In order to ensure the safe operation and effective management of cables, cable depth detection is particularly important. Cable depth detection is of great significance in ensuring construction safety, improving maintenance efficiency, optimizing power grid management, responding to external force damage, meeting legal and regulatory requirements, and supporting the application of new technologies. Therefore, in the process of cable laying, maintenance and management, the importance of cable depth detection should be fully recognized, and appropriate detection methods and equipment should be selected according to actual needs.

[0003] Trenchless detection technology for underground cables plays a vital role in modern urban infrastructure construction. However, existing trenchless detection technology still faces many challenges. It is unable to conduct deep detection. At the same time, different soil physical properties can easily affect cable detection, resulting in errors and misjudgments during cable measurement. At the same time, it is impossible to conduct a comprehensive and accurate assessment of cable faults, posing a great safety hazard to cable operation and maintenance and national engineering construction. Summary of the Invention

[0004] The present invention provides a cable depth detection method and system based on three-dimensional spatial differential phase, which solves the technical problem of insufficient detection accuracy of existing cable detection technologies.

[0005] A first aspect of the present invention provides a cable depth detection method based on three-dimensional spatial differential phase, comprising:

[0006] responds to cable depth sounding requests and conducts electromagnetic surveys of target areas;

[0007] Acquire signal strength data, signal phase data, signal frequency data, and light speed at multiple measurement points within the target area according to a preset time period;

[0008] A cable depth value of the target area is determined according to the signal strength data, the signal phase data, the signal frequency data, the speed of light, and a preset depth coefficient.

[0009] Optionally, determining the cable depth value of the target area according to the signal strength data, the signal phase data, the signal frequency data, the light speed and a preset depth coefficient includes:

[0010] Performing a sum operation using all of the signal strength data to obtain a first sum;

[0011] performing a ratio operation on the signal strength data corresponding to each of the measurement points and the first sum value to obtain a first ratio corresponding to each of the measurement points;

[0012] determining a plurality of third ratios based on the signal phase data, the signal frequency data, the light speed, and a preset depth coefficient;

[0013] Performing multiplication operations on the plurality of first ratios and the associated third ratios to obtain second multiplication values corresponding to the respective measurement points;

[0014] A sum operation is performed using all of the second multiplied values to obtain a cable depth value of the target area.

[0015] Optionally, determining a plurality of third ratios according to the signal phase data, the signal frequency data, the light speed, and a preset depth coefficient includes:

[0016] performing a difference operation using the signal phase data of two adjacent measurement points to obtain a plurality of first differences;

[0017] Performing ratio calculations on the light speed and the plurality of signal frequency data to obtain second ratios corresponding to the respective measurement points;

[0018] Performing a multiplication operation on the first difference corresponding to each of the measurement points and the associated second ratio to obtain a first multiplication value corresponding to each of the measurement points;

[0019] The first multiplication value corresponding to each of the measurement points is respectively compared with a preset depth coefficient to obtain a plurality of third ratios.

[0020] Optionally, it also includes:

[0021] Acquire measurement point position data associated with each electromagnetic detection data, wherein the measurement point position data is coordinate position information of a signal receiver at the measurement point that collects the electromagnetic detection data;

[0022] Performing a difference operation using the position data of two adjacent measuring points to obtain a target distance value corresponding to each measuring point;

[0023] Determining the cable attenuation rate corresponding to each of the measurement points according to the plurality of electromagnetic detection data, the plurality of target distance values, the speed of light, and a preset frequency coefficient;

[0024] When the cable attenuation rate is greater than a preset attenuation rate threshold, it is determined that the cable transmission state of the measurement point associated with the cable attenuation rate is abnormal and an early warning is issued.

[0025] Optionally, determining the cable attenuation rate corresponding to each measuring point according to the plurality of electromagnetic detection data, the plurality of target distance values, the speed of light, and a preset frequency coefficient includes:

[0026] performing a difference operation on the signal strength data corresponding to two adjacent measurement points to obtain a second difference corresponding to each measurement point;

[0027] performing a ratio operation on the second difference value corresponding to each of the measuring points and the associated target distance value to obtain a fourth ratio value corresponding to each of the measuring points;

[0028] performing a difference operation using the signal phase data corresponding to two adjacent measurement points to obtain a third difference corresponding to each measurement point;

[0029] Performing multiplication operations on the signal frequency data corresponding to each of the measurement points and a preset frequency coefficient to obtain a third multiplication value corresponding to each of the measurement points;

[0030] performing a ratio operation using the speed of light and a plurality of the third multiplication values to obtain a fifth ratio corresponding to each of the measurement points;

[0031] performing a ratio operation on the third difference corresponding to each of the measurement points and the associated fifth ratio to obtain a sixth ratio corresponding to each of the measurement points;

[0032] The fourth ratio corresponding to each measuring point and the associated sixth ratio are respectively used to perform a sum operation to obtain the cable attenuation rate corresponding to each measuring point.

[0033] Optionally, it also includes:

[0034] When the cable attenuation rate is less than or equal to the preset attenuation rate threshold, it is determined that the cable transmission status of the measurement point associated with the cable attenuation rate is normal and is continuously monitored.

[0035] A second aspect of the present invention provides a cable depth detection system based on three-dimensional spatial differential phase, comprising:

[0036] The equipment working module is used to respond to the cable depth detection request of the target area and perform electromagnetic detection;

[0037] A data monitoring module, configured to obtain signal strength data, signal phase data, signal frequency data, and light speed at multiple measurement points within the target area according to a preset time period;

[0038] A data analysis module is used to determine the cable depth value of the target area according to the signal strength data, the signal phase data, the signal frequency data, the speed of light and a preset depth coefficient.

[0039] A third aspect of the present invention provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the cable depth detection method based on three-dimensional spatial differential phase as described in any one of the above items.

[0040] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed, the cable depth detection method based on three-dimensional spatial differential phase as described in any one of the above items is implemented.

[0041] A fifth aspect of the present invention provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions, wherein when the program instructions are executed by a computer, the computer executes the cable depth detection method based on three-dimensional spatial differential phase as described in any one of the above items.

[0042] It can be seen from the above technical solutions that the present invention has the following advantages:

[0043] The present invention detects the depth of underground cables by acquiring signal strength data, signal phase data and signal frequency data in the target area, wherein the signal phase data reflects the phase change of electromagnetic waves during propagation, the phase change is sensitive to the cable depth, and can directly reflect the propagation path length of the electromagnetic waves in the soil, the signal frequency data determines the wavelength and propagation characteristics of the electromagnetic waves, and electromagnetic waves of different frequencies respond differently to the physical properties of the soil, and the signal strength data reflects the attenuation of the electromagnetic waves during propagation, that is, the signal phase data is sensitive to depth, the signal frequency data is sensitive to different soil properties, and the signal strength data is sensitive to attenuation. The combination of the three can make up for the shortcomings of single data, can more accurately locate the cable depth, effectively reduce the measurement error caused by different soil physical properties, and improve the reliability of the detection results. The combined use of signal phase and frequency can significantly enhance the anti-interference ability of the system, especially in complex environments, reduce errors, and improve data reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 A flowchart of a cable depth detection method based on three-dimensional spatial differential phase provided in Example 1 of the present invention;

[0046] Figure 2 A flowchart of a cable depth detection method based on three-dimensional spatial differential phase provided in the second embodiment of the present invention;

[0047] Figure 3 This is a structural block diagram of a cable depth detection system based on three-dimensional spatial differential phase provided in the third embodiment of the present invention;

[0048] Figure 4 This is another structural block diagram of a cable depth detection system based on three-dimensional spatial differential phase provided by the third embodiment of the present invention.

[0049] Figure 5 This is a structural block diagram of an electronic device provided in Example 4 of the present invention. DETAILED DESCRIPTION

[0050] The embodiments of the present invention provide a cable depth detection method and system based on three-dimensional spatial differential phase, which are used to solve the technical problem of insufficient detection accuracy of existing cable detection technologies.

[0051] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0052] See also Figure 1 , Figure 1 This is a flowchart of the steps of a cable depth detection method based on three-dimensional spatial differential phase provided in Example 1 of the present invention.

[0053] The present invention provides a cable depth detection method based on three-dimensional spatial differential phase, comprising:

[0054] Step 101: respond to a cable depth detection request for a target area and perform electromagnetic detection.

[0055] The target area refers to a specific geographical or engineering area where cable depth detection and electromagnetic detection are required. The specific geographical or engineering area includes but is not limited to urban underground, construction sites, roads, bridges, tunnels, etc., which is usually to determine the precise location, depth and direction of underground cables for construction, maintenance or troubleshooting.

[0056] The cable depth detection request refers to a request instruction to detect the depth of underground cables in the target area.

[0057] Electromagnetic detection refers to the technology of using the characteristics of electromagnetic fields to detect underground objects. Detection equipment is used to transmit electromagnetic waves of a specific frequency into the underground. Underground cables will reflect or interfere with the electromagnetic waves. The receiving equipment captures these signals and determines the depth of the underground cables by analyzing the received signals.

[0058] In an embodiment of the present invention, electromagnetic detection is performed on the target area in response to a received request instruction for detecting the depth of underground cables in the target area.

[0059] Step 102: Acquire signal strength data, signal phase data, signal frequency data, and light speed at multiple measurement points within the target area according to a preset time period.

[0060] The preset time period refers to a pre-set time range during which electromagnetic detection data is collected.

[0061] The measurement point refers to the specific location where electromagnetic detection is carried out in the target area.

[0062] It is worth mentioning that electromagnetic detection is carried out on the target area to obtain electromagnetic detection data of each measuring point in the target area. Electromagnetic detection data refers to various data related to the electromagnetic field collected at the measuring point. Electromagnetic detection data includes signal strength data, signal phase data and signal frequency data.

[0063] The speed of light refers to the speed at which electromagnetic waves propagate in a vacuum.

[0064] In an embodiment of the present invention, signal strength data, signal phase data, signal frequency data, and light speed are collected at multiple measurement points within a target area according to a preset time range.

[0065] Step 103: Determine the cable depth value of the target area according to the signal strength data, the signal phase data, the signal frequency data, the speed of light, and the preset depth coefficient.

[0066] The cable depth value refers to the vertical distance of the underground cable relative to the ground surface.

[0067] In an embodiment of the present invention, by combining signal strength data, signal phase data, signal frequency data, light speed and a preset depth coefficient, the cable depth value of the target area can be accurately determined.

[0068] In the present invention, the depth of underground cables is detected by acquiring signal strength data, signal phase data and signal frequency data in the target area, wherein the signal phase data reflects the phase change of electromagnetic waves during propagation, the phase change is sensitive to the cable depth, and can directly reflect the propagation path length of the electromagnetic waves in the soil, the signal frequency data determines the wavelength and propagation characteristics of the electromagnetic waves, and electromagnetic waves of different frequencies respond differently to the physical properties of the soil, and the signal strength data reflects the attenuation of electromagnetic waves during propagation, that is, the signal phase data is sensitive to depth, the signal frequency data is sensitive to different soil properties, and the signal strength data is sensitive to attenuation. The combination of the three can make up for the shortcomings of a single data, can more accurately locate the cable depth, effectively reduce the measurement error caused by different soil physical properties, and improve the reliability of the detection results. The combined use of signal phase and frequency can significantly enhance the anti-interference ability of the system, especially in complex environments, reduce errors, and improve data reliability.

[0069] See also Figure 2 , Figure 2 A flowchart of the steps of a cable depth detection method based on three-dimensional spatial differential phase provided in the second embodiment of the present invention.

[0070] The present invention provides a cable depth detection method based on three-dimensional spatial differential phase, comprising:

[0071] Step 201: respond to a cable depth detection request for a target area and perform electromagnetic detection.

[0072] In an embodiment of the present invention, in response to a received request instruction for detecting the depth of underground cables in a target area and performing electromagnetic detection on the target area, electromagnetic detection is performed on the target area by a signal transmitter and a plurality of signal receivers.

[0073] It is worth mentioning that multiple signal receivers adopt a combination of triangular layout and three-dimensional layered layout. On the horizontal plane, three signal receivers are set to form an equilateral triangle to receive signals from different horizontal angles, covering a larger horizontal range. At the same time, they are layered in the vertical direction, and triangularly arranged signal receivers are arranged on each level so that reflected or scattered signals at different heights and horizontal angles can be collected in all directions. This multi-receiver layout provides rich and detailed information for data analysis by collecting data at different angles and positions, which can significantly improve the reliability and stability of the system and reduce the risk of communication interruption due to failure of a single receiver.

[0074] Step 202: Acquire signal strength data, signal phase data, signal frequency data, and light speed at multiple measurement points within the target area according to a preset time period.

[0075] In an embodiment of the present invention, the signal phase data is formed by measuring the phase difference between the received signal and the reference signal through a phase detector, the signal frequency data is formed by measuring the frequency of the received signal through a spectrum analyzer, and the signal strength data is formed by measuring the strength of the received signal through an oscilloscope.

[0076] Signal phase data expression: ,in, is the signal phase data of the first measurement point, For the The signal phase data of the measurement points, that is, Represents the total amount of signal phase data during an electromagnetic detection process.

[0077] Signal frequency data expression: ,in, is the signal frequency data of the first measurement point, For the The signal frequency data of the measurement points, that is, Represents the total number of signal frequency data in an electromagnetic detection process.

[0078] The expression for signal strength data is: ,in, is the signal strength data of the first measurement point, For the The signal strength data of each measurement point, i.e. Represents the total number of signal strength data during an electromagnetic detection process.

[0079] Step 203: Determine the cable depth value of the target area according to the signal strength data, the signal phase data, the signal frequency data, the speed of light, and the preset depth coefficient.

[0080] Furthermore, step 203 may include the following sub-steps:

[0081] S11. Perform a sum operation using all signal strength data to obtain a first sum.

[0082] S12 , performing a ratio operation on the signal strength data corresponding to each measurement point and the first sum value to obtain a first ratio corresponding to each measurement point.

[0083] S13. Determine a plurality of third ratios according to the signal phase data, the signal frequency data, the speed of light, and a preset depth coefficient.

[0084] Furthermore, S13 may include the following sub-steps:

[0085] S131 . Perform a difference operation using signal phase data of two adjacent measurement points to obtain a plurality of first differences.

[0086] S132 , performing ratio calculations on the speed of light and the plurality of signal frequency data to obtain second ratios corresponding to the respective measurement points.

[0087] S133 , performing multiplication operations on the first difference corresponding to each measurement point and the associated second ratio to obtain a first multiplication value corresponding to each measurement point.

[0088] S134 , respectively performing a ratio operation using the first product value corresponding to each measurement point and a preset depth coefficient to obtain a plurality of third ratios.

[0089] S14. Perform multiplication operations on the multiple first ratios and the associated third ratios to obtain second multiplication values corresponding to each measurement point.

[0090] S15. Perform a sum operation using all the second product values to obtain the cable depth value of the target area.

[0091] In a specific implementation, to facilitate the implementation of the method, the above process can be converted into a formula encapsulation form, where the cable depth value can be as follows:

[0092]

[0093] Where, Indicates the cable depth value, Indicates the total number of measurement points, Indicates the The signal strength data corresponding to each measurement point, Represents the first sum value, specifically the sum of all signal strength data, Indicates the The signal phase data corresponding to the measurement points, Indicates the Signal phase data of each measurement point, represents the speed of light, Indicates the The signal frequency data corresponding to each measurement point, Indicates the total amount of signal strength data.

[0094] It should be noted that the total number of measurement points is equal to the total number of signal strength data, signal phase data and signal frequency data, which can be understood as , when calculating the cable depth value, you only need to calculate arrive measuring points. For the The first ratio corresponding to the measurement point is specifically characterized as The weight of the measurement point, The ratio of the signal strength of a measurement point to the total signal strength of all measurement points. The greater the signal strength of the measurement point, the higher its weight. For the The first difference corresponding to the measurement points is specifically characterized as the signal phase difference between adjacent measurement points; For the The second ratio corresponding to each measurement point is specifically characterized as wavelength data; It is a preset depth factor, specifically represented by a complete wavelength period; For the The third ratio corresponding to each measurement point is specifically characterized by combining the differential phase and wavelength parts to calculate the depth of each measurement point, integrating the signal strength, phase difference and frequency information, and improving the accuracy of cable depth estimation. represents one complete wavelength cycle, i.e. in order to convert phase difference to depth.

[0095] Step 204 : Acquire measurement point position data associated with each electromagnetic detection data. The measurement point position data is coordinate position information of a signal receiver that collects electromagnetic detection data at the measurement point.

[0096] In the embodiment of the present invention, measurement point position data associated with each electromagnetic detection data is acquired. The measurement point position data is coordinate position information of a signal receiver that collects the electromagnetic detection data at the measurement point.

[0097] Step 205: Perform a difference operation using the position data of two adjacent measuring points to obtain the target distance value corresponding to each measuring point.

[0098] The target distance value refers to a key parameter used for subsequent analysis and processing by calculating the spatial distance between two adjacent measurement points during the electromagnetic detection process.

[0099] In the embodiment of the present invention, the coordinates of each measuring point are obtained in step 204, and then the coordinate difference is calculated based on the coordinates to obtain the distance between two adjacent measuring points, which is used as the target distance value.

[0100] Step 206: Determine the cable attenuation rate corresponding to each measurement point based on the multiple electromagnetic detection data, the multiple target distance values, the speed of light, and the preset frequency coefficient.

[0101] Furthermore, step 206 may include the following sub-steps:

[0102] S21 . Perform a difference operation using the signal strength data corresponding to two adjacent measurement points to obtain a second difference corresponding to each measurement point.

[0103] S22 , performing a ratio operation on the second difference value corresponding to each measuring point and the associated target distance value to obtain a fourth ratio value corresponding to each measuring point.

[0104] S23 , performing a difference operation using the signal phase data corresponding to two adjacent measurement points to obtain a third difference corresponding to each measurement point.

[0105] S24 , performing a multiplication operation on the signal frequency data corresponding to each measurement point and a preset frequency coefficient to obtain a third multiplication value corresponding to each measurement point.

[0106] S25. Perform a ratio operation using the speed of light and a plurality of third multiplication values to obtain a fifth ratio corresponding to each measurement point.

[0107] S26 , performing a ratio operation on the third difference corresponding to each measurement point and the associated fifth ratio to obtain a sixth ratio corresponding to each measurement point.

[0108] S27 , performing a sum operation on the fourth ratio corresponding to each measuring point and the associated sixth ratio to obtain the cable attenuation rate corresponding to each measuring point.

[0109] In a specific implementation, to facilitate the implementation of the method, the above process can be converted into a formula encapsulation form, where the cable attenuation rate corresponding to each measurement point can be as follows:

[0110]

[0111] Where, Indicates the The cable attenuation rate corresponding to each measurement point is: , Indicates the The signal strength data corresponding to each measurement point, Indicates the The signal strength data corresponding to each measurement point, Indicates the target distance value, Indicates the The signal phase data corresponding to the measurement points, Indicates the The signal phase data corresponding to the measurement points, Indicates the The signal frequency data corresponding to each measurement point, Represents the preset frequency coefficient, specifically a fixed parameter that converts frequency units to light speed units.

[0112] It is worth mentioning that Before the signal measurement (before the first measurement point), there is no actual signal input, and the signal strength and phase are in the "reference initial state". and The values are all assigned to 0. It can be understood that the calculation of the cable attenuation rate corresponding to the first measurement point ( 、 ) is converted into the change of the first measurement point relative to the "no-signal reference", and the measurement reference is established in the form of "zero reference point calibration" to meet the standard specifications in the field of signal processing.

[0113] It should be noted that Indicates the The second difference corresponding to the measurement points, Indicates the The fourth ratio corresponding to the measurement point, Indicates the The third difference corresponding to the measurement points, Indicates the The third multiplication value corresponding to the measurement point, Indicates the The fifth ratio corresponding to the measurement point, Indicates the The sixth ratio corresponding to the measurement point.

[0114] Step 207: When the cable attenuation rate is greater than a preset attenuation rate threshold, it is determined that the cable transmission state of the measurement point associated with the cable attenuation rate is abnormal and an early warning is issued.

[0115] The preset attenuation rate threshold is a pre-set critical value used in cable transmission status monitoring to determine whether the cable attenuation rate is within the normal range. When the cable attenuation rate exceeds this threshold, the system will determine that the cable transmission status is abnormal and trigger an early warning mechanism.

[0116] In an embodiment of the present invention, when the cable attenuation rate is greater than a preset attenuation rate threshold, it is determined that the cable transmission state of the measurement point associated with the cable attenuation rate is abnormal and an early warning is issued.

[0117] Furthermore, it also includes:

[0118] Step 208: When the cable attenuation rate is less than or equal to the preset attenuation rate threshold, it is determined that the cable transmission status of the measurement point associated with the cable attenuation rate is normal and is continuously monitored.

[0119] In an embodiment of the present invention, when the cable attenuation rate is less than or equal to a preset attenuation rate threshold, it is determined that the cable transmission status of the measurement point associated with the cable attenuation rate is normal and is continuously monitored.

[0120] By obtaining the cable attenuation rate, the present invention can promptly issue an alarm when the cable has an abnormality, thereby avoiding possible safety accidents, discovering and handling problems in a timely manner, effectively extending the service life of the cable, and reducing the maintenance and replacement costs caused by cable failures. It helps to achieve more accurate and reliable cable depth detection, and provides strong technical support for research and practice in related fields.

[0121] In the present invention, the depth of underground cables is detected by acquiring signal strength data, signal phase data and signal frequency data in the target area, wherein the signal phase data reflects the phase change of electromagnetic waves during propagation, the phase change is sensitive to the cable depth, and can directly reflect the propagation path length of the electromagnetic waves in the soil, the signal frequency data determines the wavelength and propagation characteristics of the electromagnetic waves, and electromagnetic waves of different frequencies respond differently to the physical properties of the soil, and the signal strength data reflects the attenuation of electromagnetic waves during propagation, that is, the signal phase data is sensitive to depth, the signal frequency data is sensitive to different soil properties, and the signal strength data is sensitive to attenuation. The combination of the three can make up for the shortcomings of a single data, can more accurately locate the cable depth, effectively reduce the measurement error caused by different soil physical properties, and improve the reliability of the detection results. The combined use of signal phase and frequency can significantly enhance the anti-interference ability of the system, especially in complex environments, reduce errors, and improve data reliability.

[0122] See also Figure 3-Figure 4 , Figure 3 This is a structural block diagram of a cable depth detection system based on three-dimensional spatial differential phase provided in the third embodiment of the present invention.

[0123] Figure 4 This is another structural block diagram of a cable depth detection system based on three-dimensional spatial differential phase provided by the third embodiment of the present invention.

[0124] The present invention provides a cable depth detection system based on three-dimensional spatial differential phase, comprising:

[0125] The device working module 301 is used to respond to a cable depth detection request for a target area and perform electromagnetic detection;

[0126] The data monitoring module 302 is used to obtain signal strength data, signal phase data, signal frequency data and light speed at multiple measurement points in the target area according to a preset time period;

[0127] The data analysis module 303 is used to determine the cable depth value of the target area according to the signal strength data, the signal phase data, the signal frequency data, the speed of light and the preset depth coefficient.

[0128] Furthermore, the data analysis module 303 includes:

[0129] A first sum value unit is used to perform a sum value operation using all signal strength data to obtain a first sum value;

[0130] A first ratio unit is configured to perform a ratio operation on the signal strength data corresponding to each measurement point and the first sum value to obtain a first ratio corresponding to each measurement point;

[0131] a third ratio unit, configured to determine a plurality of third ratios according to the signal phase data, the signal frequency data, the speed of light, and a preset depth coefficient;

[0132] A second multiplication unit is used to perform multiplication operations on the plurality of first ratios and the associated third ratios to obtain a second multiplication value corresponding to each measurement point;

[0133] The cable depth value unit is used to perform a sum operation using all the second product values to obtain the cable depth value of the target area.

[0134] Furthermore, the third ratio unit includes:

[0135] A first difference subunit is configured to perform a difference operation using the signal phase data of two adjacent measurement points to obtain a plurality of first difference values;

[0136] A second ratio subunit is used to perform ratio operations using the speed of light and multiple signal frequency data to obtain a second ratio corresponding to each measurement point;

[0137] A first multiplication subunit is configured to perform a multiplication operation using the first difference corresponding to each measurement point and the associated second ratio to obtain a first multiplication value corresponding to each measurement point;

[0138] The first data output subunit is configured to perform ratio calculations on the first multiplication value corresponding to each measurement point and the preset depth coefficient to obtain a plurality of third ratios.

[0139] Furthermore, the data analysis module 303 also includes:

[0140] A measurement point position data unit is used to obtain measurement point position data associated with each electromagnetic detection data, where the measurement point position data is the coordinate position information of the signal receiver at the measurement point that collects the electromagnetic detection data;

[0141] The target distance value unit is used to perform difference calculation using the position data of two adjacent measuring points to obtain the target distance value corresponding to each measuring point;

[0142] A cable attenuation rate unit is used to determine the cable attenuation rate corresponding to each measurement point based on multiple electromagnetic detection data, multiple target distance values, light speed and a preset frequency coefficient;

[0143] The first determination unit is configured to determine that the cable transmission state of a measurement point associated with the cable attenuation rate is abnormal when the cable attenuation rate is greater than a preset attenuation rate threshold.

[0144] Furthermore, the cable attenuation rate unit includes:

[0145] A second difference subunit is configured to perform a difference operation using the signal strength data corresponding to two adjacent measurement points to obtain a second difference corresponding to each measurement point;

[0146] a fourth ratio subunit, configured to perform a ratio operation using the second difference corresponding to each measuring point and the associated target distance value to obtain a fourth ratio corresponding to each measuring point;

[0147] A third difference subunit is configured to perform a difference operation using the signal phase data corresponding to two adjacent measurement points to obtain a third difference corresponding to each measurement point;

[0148] A third multiplication subunit is configured to perform a multiplication operation using the signal frequency data corresponding to each measurement point and a preset frequency coefficient to obtain a third multiplication value corresponding to each measurement point;

[0149] a fifth ratio subunit, configured to perform a ratio operation using the speed of light and a plurality of third multiplication values to obtain a fifth ratio corresponding to each measurement point;

[0150] a sixth ratio subunit, configured to perform a ratio operation using the third difference corresponding to each measurement point and the associated fifth ratio, to obtain a sixth ratio corresponding to each measurement point;

[0151] The second data output subunit is used to perform a sum operation on the fourth ratio corresponding to each measuring point and the associated sixth ratio to obtain the cable attenuation rate corresponding to each measuring point.

[0152] Furthermore, the data analysis module 303 also includes:

[0153] The second determination unit is configured to determine that the cable transmission status of the measurement point associated with the cable attenuation rate is normal and to continuously monitor the status when the cable attenuation rate is less than or equal to a preset attenuation rate threshold.

[0154] Furthermore, the device working module 301 includes:

[0155] The transmitting unit is used to transmit electromagnetic signals.

[0156] The receiving unit is used to receive the signal returned after being transmitted by the transmitting unit and feed the signal back to the data monitoring module.

[0157] Furthermore, it also includes:

[0158] Feedback module 304: The feedback module is connected to a display system and is configured to display the detected cable depth value via the display system.

[0159] Furthermore, it also includes:

[0160] The early warning module 305 is used to issue an early warning when it is determined that the cable transmission status of the measurement point associated with the cable attenuation rate is abnormal.

[0161] In an embodiment of the present invention, the device working module 301 includes a transmitting unit and a receiving unit. The transmitting unit is used to transmit electromagnetic signals, and the receiving unit is used to receive the signals returned by the transmitting unit after the transmission, and feed the signals back to the data monitoring module. The data monitoring module monitors and integrates the signals received by the receiving unit to form electromagnetic detection data and sends it to the data analysis module. The data analysis module analyzes and calculates the cable depth value and cable attenuation rate based on the electromagnetic detection data, and sends the cable depth value to the feedback module. The data analysis module compares the cable attenuation rate with the corresponding threshold to determine the current signal transmission status of the cable. In the event of abnormal cable transmission, it sends an early warning to the early warning and alarm module for early warning. The transmitting unit is connected to a signal transmitter via a network to transmit electromagnetic signals to the target area. The receiving unit is connected to a signal receiver via a network to receive the signals reflected by the transmitter. The feedback module is connected to a display system, which displays the detected cable depth value.

[0162] It is worth mentioning that the receiving unit connects multiple signal receivers arranged at different positions through a network, receiving signals reflected or scattered back from the transmitter from different spatial positions. The signal receivers at different positions are like data collection points at different coordinate points in three-dimensional space, collecting signals from different angles and distances of the target cable;

[0163] The phase detector measures the phase difference between the received signal and the reference signal to form a signal phase set. Phase difference is a key element of differential phase. The phase difference of the received signals at different locations contains spatial relationship information such as the distance and angle between the cable and each receiver. By analyzing these phase difference data, the position and depth of the cable in three-dimensional space can be further determined.

[0164] The calculation formula for the cable depth value comprehensively considers information such as signal strength, phase data, wavelength, etc., especially phase data. By incorporating the phase data of adjacent measurement points into the calculation, the differential phase and wavelength parts are used to calculate the depth of each measurement point. The differential phase here is the difference in phase between different measurement points. Combined with measurement points at different positions in space (corresponding to different points in three-dimensional space), the cable depth index can be accurately calculated based on the three-dimensional differential phase.

[0165] In the present invention, the depth of underground cables is detected by acquiring signal strength data, signal phase data and signal frequency data in the target area, wherein the signal phase data reflects the phase change of electromagnetic waves during propagation, the phase change is sensitive to the cable depth, and can directly reflect the propagation path length of the electromagnetic waves in the soil, the signal frequency data determines the wavelength and propagation characteristics of the electromagnetic waves, and electromagnetic waves of different frequencies respond differently to the physical properties of the soil, and the signal strength data reflects the attenuation of electromagnetic waves during propagation, that is, the signal phase data is sensitive to depth, the signal frequency data is sensitive to different soil properties, and the signal strength data is sensitive to attenuation. The combination of the three can make up for the shortcomings of a single data, can more accurately locate the cable depth, effectively reduce the measurement error caused by different soil physical properties, and improve the reliability of the detection results. The combined use of signal phase and frequency can significantly enhance the anti-interference ability of the system, especially in complex environments, reduce errors, and improve data reliability.

[0166] See also Figure 5 , Figure 5 This is a structural block diagram of an electronic device provided in Example 4 of the present invention.

[0167] An electronic device according to an embodiment of the present invention includes: a memory 401 and a processor 402, wherein the memory 402 stores a computer program; when the computer program is executed by the processor 402, the processor 402 executes a cable depth detection method based on three-dimensional spatial differential phase as described in any of the above embodiments.

[0168] Memory 401 may be an electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read-Only Memory), EPROM, hard disk, or ROM. Memory 401 has storage space 403 for program code 413 for executing any of the method steps described above. For example, storage space 403 for program code may include individual program codes 413 for implementing various steps in the method described above. These program codes may be read from or written to one or more computer program products. These computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards, or floppy disks. The program codes may be compressed, for example, in a suitable format. When executed by a processing device, these codes cause the processing device to execute the various steps in the method described above. These program codes may be read from or written to one or more computer program products. These computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards, or floppy disks. The program codes may be compressed, for example, in a suitable format. When these codes are executed by a computing and processing device, they cause the computing and processing device to execute the various steps of the above-described cable depth detection method based on three-dimensional spatial differential phase.

[0169] The fifth embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the cable depth detection method based on three-dimensional spatial differential phase as in any of the above embodiments is implemented.

[0170] Embodiment six of the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions, wherein when the program instructions are executed by a computer, the computer executes the cable depth detection method based on three-dimensional spatial differential phase as in any of the above embodiments.

[0171] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0172] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0173] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0174] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0175] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the method of the present invention. The aforementioned storage medium includes various media that can store program code, such as USB flash drives, mobile hard drives, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical disks.

[0176] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A cable depth detection method based on three-dimensional spatial differential phase, characterized in that: include: responds to cable depth sounding requests and conducts electromagnetic surveys of target areas; Acquire signal strength data, signal phase data, signal frequency data, and light speed at multiple measurement points within the target area according to a preset time period; A cable depth value of the target area is determined according to the signal strength data, the signal phase data, the signal frequency data, the speed of light, and a preset depth coefficient.

2. The cable depth detection method based on three-dimensional spatial differential phase according to claim 1 is characterized in that: The determining of the cable depth value of the target area according to the signal strength data, the signal phase data, the signal frequency data, the light speed and a preset depth coefficient includes: Performing a sum operation using all of the signal strength data to obtain a first sum; performing a ratio operation on the signal strength data corresponding to each of the measurement points and the first sum value to obtain a first ratio corresponding to each of the measurement points; determining a plurality of third ratios based on the signal phase data, the signal frequency data, the light speed, and a preset depth coefficient; Performing multiplication operations on the plurality of first ratios and the associated third ratios to obtain second multiplication values corresponding to the respective measurement points; A sum operation is performed using all of the second multiplied values to obtain a cable depth value of the target area.

3. The cable depth detection method based on three-dimensional spatial differential phase according to claim 2, characterized in that: The determining of a plurality of third ratios according to the signal phase data, the signal frequency data, the light speed, and a preset depth coefficient includes: performing a difference operation using the signal phase data of two adjacent measurement points to obtain a plurality of first differences; Performing ratio calculations on the light speed and the plurality of signal frequency data to obtain second ratios corresponding to the respective measurement points; Performing a multiplication operation on the first difference corresponding to each of the measurement points and the associated second ratio to obtain a first multiplication value corresponding to each of the measurement points; The first multiplication value corresponding to each of the measurement points is respectively compared with a preset depth coefficient to obtain a plurality of third ratios.

4. The cable depth detection method based on three-dimensional spatial differential phase according to any one of claims 1 to 3, characterized in that: Also includes: Acquire measurement point position data associated with each electromagnetic detection data, wherein the measurement point position data is coordinate position information of a signal receiver at the measurement point that collects the electromagnetic detection data; Performing a difference operation using the position data of two adjacent measuring points to obtain a target distance value corresponding to each measuring point; Determining the cable attenuation rate corresponding to each of the measurement points according to the plurality of electromagnetic detection data, the plurality of target distance values, the speed of light, and a preset frequency coefficient; When the cable attenuation rate is greater than a preset attenuation rate threshold, it is determined that the cable transmission state of the measurement point associated with the cable attenuation rate is abnormal and an early warning is issued.

5. The cable depth detection method based on three-dimensional spatial differential phase according to claim 4 is characterized in that: The determining of the cable attenuation rate corresponding to each measuring point according to the plurality of electromagnetic detection data, the plurality of target distance values, the light speed and a preset frequency coefficient includes: performing a difference operation on the signal strength data corresponding to two adjacent measurement points to obtain a second difference corresponding to each measurement point; performing a ratio operation on the second difference value corresponding to each of the measuring points and the associated target distance value to obtain a fourth ratio value corresponding to each of the measuring points; performing a difference operation using the signal phase data corresponding to two adjacent measurement points to obtain a third difference corresponding to each measurement point; Performing multiplication operations on the signal frequency data corresponding to each of the measurement points and a preset frequency coefficient to obtain a third multiplication value corresponding to each of the measurement points; performing a ratio operation using the light speed and a plurality of the third multiplication values to obtain a fifth ratio corresponding to each of the measurement points; performing a ratio operation on the third difference corresponding to each of the measurement points and the associated fifth ratio to obtain a sixth ratio corresponding to each of the measurement points; The fourth ratio corresponding to each measuring point and the associated sixth ratio are respectively used to perform a sum operation to obtain the cable attenuation rate corresponding to each measuring point.

6. The cable depth detection method based on three-dimensional spatial differential phase according to claim 4, characterized in that: Also includes: When the cable attenuation rate is less than or equal to the preset attenuation rate threshold, it is determined that the cable transmission status of the measurement point associated with the cable attenuation rate is normal and is continuously monitored.

7. A cable depth detection system based on three-dimensional spatial differential phase, based on the cable depth detection method based on three-dimensional spatial differential phase according to any one of claims 1 to 6, characterized in that: include: The equipment working module is used to respond to the cable depth detection request of the target area and perform electromagnetic detection; A data monitoring module, configured to obtain signal strength data, signal phase data, signal frequency data, and light speed at multiple measurement points within the target area according to a preset time period; A data analysis module is used to determine the cable depth value of the target area according to the signal strength data, the signal phase data, the signal frequency data, the speed of light and a preset depth coefficient.

8. An electronic device, characterized in that: It comprises a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the processor executes the steps of the cable depth detection method based on three-dimensional spatial differential phase as described in any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed, the cable depth detection method based on three-dimensional spatial differential phase according to any one of claims 1 to 6 is implemented.

10. A computer program product, characterized in that The computer program product includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions, wherein when the program instructions are executed by a computer, the computer is caused to execute the cable depth detection method based on three-dimensional spatial differential phase as described in any one of claims 1 to 6.

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