Complete polarization well hole radar detection device and detection method thereof

Abstract

The invention relates to the technical field of geophysical exploration, in particular to a complete polarization borehole radar detection device and a detection method thereof, and the device comprises a transmitting antenna unit which is used for transmitting horizontal polarization and vertical polarization radar signals; the receiving antenna unit is used for receiving horizontal polarization and vertical polarization radar signals; the directional positioning unit is used for measuring the real-time directions and positions of the transmitting and receiving antenna units so as to judge whether the direction and the position are target directions and target positions or not; the radar transmitting and receiving control unit is used for activating different horizontal polarization and vertical polarization antennas to construct a plurality of polarization modes, and switching to any polarization mode according to a target detection requirement so as to acquire multi-polarization radar data; and the host control unit is used for carrying out image reconstruction on the multi-polarization radar data so as to obtain a three-dimensional underground structure image. Therefore, the problems that a traditional wellhole radar cannot achieve three-dimensional imaging, and a single-hole wellhole detection radar cannot achieve positioning and orientation are solved.

Description

Technical Field

[0001] The present invention relates to the field of geophysical detection technology, and in particular to a full-polarization borehole radar detection device and a detection method thereof. Background Art

[0002] Since its invention, ground penetrating radar (GPR) technology has become an important technology in the field of underground detection. Ground penetrating radar technology uses electromagnetic waves to penetrate the surface to detect the existence and distribution of underground structures and objects. Although GPR currently has the characteristics of high resolution and non-destructiveness, its detection effect in complex geological environments is limited by the polarization mode. Traditional single-polarization radar can only provide limited polarization information, making it difficult to accurately identify the properties and structures of underground targets. In the development of GPR technology, the emergence of full polarization ground penetrating radar (FP-GPR) technology marks an important advancement in this field. Compared with traditional GPR, FP-GPR can transmit and receive electromagnetic waves through different polarization states, thereby obtaining richer and more detailed underground information. Full polarization ground penetrating radar technology transmits and receives electromagnetic waves through multiple polarization states to obtain richer underground information, significantly improving detection capabilities and accuracy.

[0003] However, most existing borehole radar detection systems still use a single polarization method. With the development of society and the advancement of science and technology, the demand for underground resource exploration, geological exploration, urban complex underground environment detection, and infrastructure safety assessment is increasing. Existing borehole detection radars cannot meet the current technical detection needs and have the following problems:

[0004] (1) Conventional borehole detection radars are mostly single-polarization radars, which can only collect single-polarization information with limited information, and cannot meet the detection needs in complex environments;

[0005] (2) Single-polarization radar is limited in resolution and accuracy in processing subtle differences in underground media, and has poor adaptability in complex underground environments or when the medium is highly inhomogeneous.

[0006] (3) Traditional borehole detection radar cannot solve the positioning and orientation problems of single-hole detection. Summary of the invention

[0007] The present invention provides a fully polarized borehole radar detection device and a detection method thereof, so as to solve the problem that the traditional borehole radar cannot realize three-dimensional imaging, and the problem that the single-hole borehole detection radar cannot realize positioning and orientation.

[0008] The first aspect of the present invention provides a fully polarized borehole radar detection device, comprising the following steps: a transmitting antenna unit, the transmitting antenna unit comprising a first horizontally polarized antenna and a first vertically polarized antenna, respectively used to transmit horizontally polarized radar signals and vertically polarized radar signals; a receiving antenna unit, the receiving antenna unit comprising a second horizontally polarized antenna and a second vertically polarized antenna, respectively used to receive the horizontally polarized radar signals and the vertically polarized radar signals; a directional positioning unit, used to measure the real-time direction and real-time position of the transmitting antenna unit and the receiving antenna unit, and judge whether the transmitting antenna unit and the receiving antenna unit are in the target direction and target position according to the real-time direction and the real-time position; a radar transmitting and receiving control unit, used to activate different horizontally polarized antennas and vertically polarized antennas to construct a plurality of polarization modes, and switch to any polarization mode according to the target detection requirements to collect multi-polarization radar data; a host control unit, used to control the radar transmitting and receiving control unit to collect the multi-polarization radar data, and reconstruct the multi-polarization radar data to obtain a three-dimensional underground structure image; an optical fiber control unit, used to transmit the multi-polarization radar data to the data processing unit.

[0009] Optionally, the multiple polarization modes include a combination of the first horizontal polarization antenna and the second horizontal polarization antenna, a combination of the first horizontal polarization antenna and the second vertical polarization antenna, a combination of the first vertical polarization antenna and the second horizontal polarization antenna, and a combination of the first vertical polarization antenna and the second vertical polarization antenna.

[0010] Optionally, the radar transmitting and receiving control unit includes:

[0011] A controller, wherein the controller switches among the plurality of polarization modes according to the target detection requirement;

[0012] A first processor is configured to parse the horizontally polarized radar signal and the vertically polarized radar signal to generate the multi-polarization radar data.

[0013] Optionally, the directional positioning unit includes:

[0014] a gyroscope, the gyroscope being used to measure the current direction and current speed of the transmitting antenna unit and the receiving antenna unit when they are in the target wellbore;

[0015] an accelerometer, the accelerometer being used to measure the current acceleration of the transmitting antenna unit and the receiving antenna unit when they are in the target wellbore;

[0016] A geomagnetic sensor, the geomagnetic sensor is used to measure the geomagnetic field in the target wellbore;

[0017] a calculation unit, the calculation unit being connected to the gyroscope and the accelerometer respectively, and being used for calculating a current position according to the current speed, the current acceleration and the geomagnetic field;

[0018] An execution unit is connected to the calculation unit and is used to determine whether the current direction is the target direction and whether the current position is the target position. If any one of the two is not the target direction, the transmitting antenna unit and the receiving antenna unit are adjusted to the target direction and / or the target position.

[0019] Optionally, the host control unit includes:

[0020] a second processor, the second processor being used to send an instruction to the radar transmitting and receiving control unit to collect the multi-polarization radar data;

[0021] A data processing subunit, wherein the data processing unit is used to perform image reconstruction processing on the multi-polarization radar data using a machine learning optimization algorithm to obtain the three-dimensional underground structure image.

[0022] Optionally, the data processing subunit includes:

[0023] A denoising subunit, used for removing impulse noise and high-frequency noise in the multi-polarization radar data by using a median filtering method and a wavelet transform to obtain denoised multi-polarization radar data;

[0024] A feature extraction subunit, used to extract high-order features from the denoised multi-polarization radar data using a convolutional neural network, and select and screen the high-order features using a recursive feature elimination method to obtain actual feature information;

[0025] The image reconstruction subunit is used to reconstruct the image according to the actual feature information to obtain the three-dimensional underground structure image.

[0026] The second aspect of the present invention provides a detection method for a fully polarized borehole radar detection device, including: deploying the fully polarized borehole radar detection device at the target position and target direction of the target borehole; activating different horizontal polarization antennas and vertical polarization antennas to construct a plurality of polarization modes; selecting any polarization mode for data collection according to the target detection requirements to obtain multi-polarization radar data; determining the real-time position and real-time direction of the fully polarized borehole radar detection device; judging whether the transmitting antenna unit and the receiving antenna unit are at the target position and the target direction according to the real-time direction and the real-time position, and if not, adjusting the transmitting antenna unit and the receiving antenna unit to the target position; reconstructing the multi-polarization radar data to obtain a three-dimensional underground structure image.

[0027] The third aspect of the present invention provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the detection method of the full-polarization borehole radar detection device as described in the above embodiment.

[0028] A fourth aspect of the present invention provides a computer program product, which, when executed by a processor, implements the detection method of the full-polarization borehole radar detection device as described above.

[0029] A fifth aspect of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, which, when executed by a processor, implements the detection method of the full-polarization borehole radar detection device as described above.

[0030] The fully polarized borehole radar detection device and its detection method and device proposed in the embodiment of the present invention, by introducing fully polarized radar technology, combined with optical fiber communication, directional positioning and data processing technology, combined with the collection and analysis of multi-polarization information, realizes high-resolution three-dimensional imaging and positioning and orientation, significantly improves the detection accuracy and recognition ability of underground targets, thereby improving the accuracy, resolution and adaptability of detection, and is suitable for high-precision underground detection needs in complex geological environments. Thus, it solves the problem that conventional borehole detection radars in the related technology are mostly single-polarization radars, which can only collect single-polarization information with limited information, and it is difficult to meet the detection needs in complex environments. Single-polarization radars are limited by resolution and accuracy in processing subtle differences in underground media, and have poor adaptability in the case of complex underground environments or strong medium inhomogeneity, and traditional borehole detection radars cannot solve the positioning and orientation problems of single-hole detection.

[0031] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0033] Figure 1 A block diagram of a fully polarized borehole radar detection device provided by an embodiment of the present invention;

[0034] Figure 2 A flow chart of a detection method of a full-polarization borehole radar detection device provided by an embodiment of the present invention;

[0035] Figure 3 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention.

[0036] Explanation of the reference numerals: 10 - fully polarized borehole radar detection device, 101 - transmitting antenna unit, 102 - receiving antenna unit, 103 - directional positioning unit, 104 - radar transmitting and receiving control unit, 105 - host control unit and 106 - optical fiber control unit. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0038] The following describes the fully polarized borehole radar detection device and its detection method of the embodiment of the present invention with reference to the accompanying drawings. In view of the related technologies mentioned in the above background technology center, conventional borehole detection radars are mostly single-polarization radars, which can only collect single polarization information with limited information, and it is difficult to meet the detection needs in complex environments. Single-polarization radars are limited by resolution and accuracy in processing subtle differences in underground media, and have poor adaptability in the case of complex underground environments or strong medium inhomogeneity. In addition, traditional borehole detection radars cannot solve the positioning and orientation problems of single-hole detection. This application provides a fully polarized borehole radar detection system and detection method. In this method, by introducing fully polarized radar technology, combining optical fiber communication, directional positioning and data processing technology, and combining the collection and analysis of multi-polarization information, high-resolution three-dimensional imaging and positioning and orientation are achieved, which significantly improves the detection accuracy and recognition ability of underground targets, thereby improving the detection accuracy, resolution and adaptability, and is suitable for high-precision underground detection needs in complex geological environments. This solves the problem in the related technology that most conventional borehole detection radars are single-polarization radars, which can only collect single-polarization information with a limited amount of information, making it difficult to meet the detection needs in complex environments. Single-polarization radars are limited in resolution and accuracy in processing subtle differences in underground media, and have poor adaptability in complex underground environments or highly non-uniform media. In addition, traditional borehole detection radars cannot solve the positioning and orientation problems of single-hole detection.

[0039] Specifically, Figure 1 A block diagram of a fully polarized borehole radar detection device provided by an embodiment of the present invention.

[0040] like Figure 1 As shown, the fully polarized borehole radar detection device 10 includes: a transmitting antenna unit 101, a receiving antenna unit 102, a directional positioning unit 103, a radar transmitting and receiving control unit 104, a host control unit 105 and an optical fiber control unit 106.

[0041] Among them, the transmitting antenna unit 101 includes a first horizontal polarization antenna and a first vertical polarization antenna, which are respectively used to transmit horizontal polarization radar signals and vertical polarization radar signals. The receiving antenna unit 102 includes a second horizontal polarization antenna and a second vertical polarization antenna, which are respectively used to receive horizontal polarization radar signals and vertical polarization radar signals. The directional positioning unit 103 is used to measure the real-time direction and real-time position of the transmitting antenna unit and the receiving antenna unit, and judge whether the transmitting antenna unit and the receiving antenna unit are the target direction and target position according to the real-time direction and real-time position. The radar transmitting and receiving control unit 104 is used to activate different horizontal polarization antennas and vertical polarization antennas to construct multiple polarization modes, and switch to any polarization mode according to the target detection requirements to collect multi-polarization radar data. The host control unit 105 is used to control the radar transmitting and receiving control unit to collect multi-polarization radar data, and reconstruct the multi-polarization radar data to obtain a three-dimensional underground structure image. The optical fiber control unit 106 is used to transmit the multi-polarization radar data to the data processing unit.

[0042] In some embodiments, the transmitting antenna unit 101 and the receiving antenna unit 102 are each composed of a pair of highly sensitive horizontally polarized antennas (H) and vertically polarized antennas (V). The antenna design takes into account the spatial limitations and electromagnetic characteristics within the wellbore to ensure that the maximum range of signal coverage can be achieved within a limited space and that the two polarized antennas do not interfere with each other in terms of electromagnetic performance.

[0043] Furthermore, a horizontally polarized antenna (H) and a vertically polarized antenna (V) are overlapped and used in the transmitting antenna unit 101 and the receiving antenna unit 102, and an electromagnetic isolation material (such as a high dielectric constant material) is used between the two antennas to ensure that the two polarized antennas do not interfere with each other in electromagnetic performance.

[0044] In some embodiments, the orientation and positioning unit 103 includes:

[0045] Gyroscope, the gyroscope is used to measure the current direction and current speed of the transmitting antenna unit and the receiving antenna unit when they are in the target wellbore;

[0046] An accelerometer, the accelerometer is used to measure the current acceleration of the transmitting antenna unit and the receiving antenna unit when they are in the target wellbore;

[0047] A geomagnetic sensor, which is used to measure the geomagnetic field in the target wellbore;

[0048] A calculation unit, the calculation unit is connected to the gyroscope and the accelerometer respectively, and is used to calculate the current position according to the current speed, the current acceleration and the geomagnetic field;

[0049] The execution unit is connected to the calculation unit and is used to determine whether the current direction is the target direction and whether the current position is the target position. If any of the above is not the case, the transmitting antenna unit and the receiving antenna unit are adjusted to the target direction and / or target position.

[0050] In the actual implementation process, the directional positioning unit 103 is equipped with advanced gyroscopes and accelerometers. The combination of accelerometers and gyroscopes is used to monitor and record the exact position and direction of the detection equipment in the wellbore. The data of the gyroscope and accelerometer can be used to calibrate the equipment position in real time to ensure the accuracy of the orientation information in the data. By analyzing the data obtained by the gyroscope and accelerometer and combining the machine learning algorithm to automatically calibrate the equipment position and direction, the movement path and specific direction and position of the fully polarized wellbore radar detection device can be accurately calculated. If the current position is not the target position, the fully polarized wellbore radar detection device will be adjusted to the target direction and / or target position.

[0051] Furthermore, it can also be combined with geomagnetic sensors to provide accurate three-dimensional spatial orientation positioning and equipment posture monitoring, and use machine learning algorithms to automatically calibrate orientation positioning errors based on historical data and real-time sensor feedback to enhance the accuracy of orientation positioning.

[0052] In some embodiments, the radar transmission and reception control unit 104 includes:

[0053] A controller that switches between multiple polarization modes based on target detection requirements;

[0054] The first processor is used to parse the horizontally polarized radar signal and the vertically polarized radar signal to generate multi-polarization radar data.

[0055] During the actual execution process, the radar transmit and receive control unit 104 is respectively connected to the transmit antenna unit 101 and the receive antenna unit 102 to transmit control instructions to the transmit antenna unit 101 and the receive antenna unit 102, control the transmit antenna unit 101 and the receive antenna unit 102 to autonomously activate different transmit and receive antennas, construct a combination of different antennas, obtain a variety of polarization modes, and quickly select the most suitable transmit and receive modes according to the detection environment and target characteristics. The built-in program logic and algorithm automatically select the best polarization mode to improve the resolution and recognition rate of underground medium detection, thereby solving the problem that single-polarization radar is limited in resolution and accuracy in processing subtle differences in underground media, and solving the problem that conventional single-polarization ground penetrating radar can only collect single polarization information with a limited amount of information, thereby meeting the work needs in the current complex environment.

[0056] Among them, the four polarization modes include: an HH combination form of a first horizontally polarized antenna and a second horizontally polarized antenna, a VV combination form of a first vertically polarized antenna and a second vertically polarized antenna, an HV combination form of a first horizontally polarized antenna and a second vertically polarized antenna, and a VH combination form of a first vertically polarized antenna and a second horizontally polarized antenna.

[0057] It should be noted that the embodiment of the present invention selects the most suitable polarization mode in the following manner: based on known geological information and previously detected data, analyze the differences in the response effects of different polarization modes on specific geological structures, and implement a preliminary polarization effect evaluation. Develop an intelligent selection algorithm based on a decision tree to dynamically and intelligently select a polarization mode based on the quality and integrity of the reflected signal, and realize real-time automatic adjustment of the polarization mode. Provide visual polarization selection feedback in the user interface of the host control unit, so that the operator can intuitively understand the current polarization state and its effect.

[0058] Furthermore, the radar transmitting and receiving control unit 104 realizes the rapid switching of the polarization states of the transmitting and receiving antennas through the built-in first processor (digital signal processor, DSP) and controller (programmable logic controller, PLC). Among them, the DSP is responsible for generating and analyzing radar signals, while the PLC adjusts the polarization mode according to the detection requirements, supports four basic polarization modes: HH, VV, HV, VH, and can switch modes within a millisecond response time, has a processing speed of up to 2GHz, and is compatible with a variety of communication interfaces (such as USB, Ethernet), solving the problem of poor adaptability of single-polarization radar in complex underground environments or strong medium inhomogeneity.

[0059] In some embodiments, the host control unit 105 includes:

[0060] A second processor, the second processor is used to send an instruction to collect multi-polarization radar data to the radar transmission and reception control unit;

[0061] The data processing subunit is used to perform image reconstruction processing on the multi-polarization radar data using a machine learning optimization algorithm to obtain a three-dimensional underground structure image.

[0062] In the actual execution process, the host control unit 105 integrates modern electronic technology and computing technology, is responsible for the coordinated control, data acquisition, real-time processing and user interaction of the entire system, and provides a graphical interface on which users can directly adjust detection parameters, view real-time data and detection results.

[0063] Furthermore, the host control unit 105, as the core of the system, is responsible for coordinating the operation of the entire detection system, including the control of data acquisition, parameter setting, real-time monitoring and data analysis.

[0064] Furthermore, the host control unit 105 can use a high-performance microprocessor and a multi-tasking operating system, support multi-threaded operations, and can simultaneously process data and control commands from multiple units, perform human-computer interaction through a touch screen or physical buttons, and simplify the operating process.

[0065] Furthermore, the host control unit 105 can be equipped with a high-resolution display screen, support wireless and wired network connections, have sufficient storage space to store a large amount of detection data, and have strong system scalability and support the addition of additional functional modules.

[0066] In some embodiments, the data processing subunit includes:

[0067] A denoising subunit is used to remove the pulse noise and high-frequency noise in the multi-polarization radar data by using a median filtering method and a wavelet transform to obtain denoised multi-polarization radar data;

[0068] The feature extraction subunit is used to extract high-order features from the denoised multi-polarization radar data using a convolutional neural network, and select and filter the high-order features using a recursive feature elimination method to obtain actual feature information;

[0069] The image reconstruction subunit is used to reconstruct the image according to the actual feature information to obtain a three-dimensional underground structure image.

[0070] In actual implementation, the data processing subunit has powerful data processing capabilities and can process complex data from multiple detection channels to achieve multi-dimensional data processing, such as denoising, feature extraction, image reconstruction, and automatic identification of underground structures based on deep learning.

[0071] Furthermore, the data processing subunit performs in-depth analysis and processing on the collected raw data, using a high-performance digital signal processor (DSP) and advanced algorithms, using the data denoising subunit to perform denoising, using the feature extraction subunit to perform feature extraction, and using the image reconstruction subunit to reconstruct the image.

[0072] Furthermore, the data processing subunit may adopt advanced algorithms including neural networks and support vector machines, providing a user-customizable algorithm framework to adapt to different detection requirements and geological conditions.

[0073] It should be noted that the data processing subunit of the host control unit in the embodiment of the present invention also needs to be optimized. The specific optimization process is: the acquired raw data is normalized to eliminate the influence of different scales and dimensions on the analysis. Advanced noise filtering techniques, such as wavelet transform, are applied to remove background noise and non-correlated frequency components in the data. Deep learning algorithms (such as convolutional neural networks) are used to automatically identify and extract key features of underground structures. The most influential features are selected through techniques such as recursive feature elimination (RFE) to optimize the subsequent learning process and prediction accuracy. Training and validation data sets are constructed from historical detection data to ensure that the data sets cover a wide range of geological conditions and radar responses. The cross-validation method is used to evaluate the generalization ability of the model to ensure the effectiveness and stability of the algorithm on unknown data. Real-time learning during the detection process allows the model to be continuously updated and optimized based on newly received data. User feedback and geological verification results are introduced as part of the learning to continuously adjust and optimize the algorithm parameters. This can significantly improve the analytical ability of the detection data and achieve more accurate qualitative and quantitative analysis of underground structures.

[0074] In some embodiments, the fiber optic control unit 106 uses high-speed fiber optic communication technology to transmit control signals and data to ensure the stability and security of signal transmission in extreme underground environments. It integrates data preprocessing functions and can perform preliminary noise reduction analysis on raw radar data, thereby reducing the burden of high data volume transmission and processing.

[0075] In summary, the fully polarized borehole radar detection device proposed in the embodiment of the present invention, by introducing fully polarized radar technology, combined with optical fiber communication, directional positioning and data processing technology, combined with the collection and analysis of multi-polarization information, realizes high-resolution three-dimensional imaging and positioning and orientation, significantly improves the detection accuracy and recognition ability of underground targets, thereby improving the accuracy, resolution and adaptability of detection, and is suitable for high-precision underground detection needs in complex geological environments. Thus, it solves the problem that conventional borehole detection radars in the related art are mostly single-polarization radars, which can only collect single-polarization information with a limited amount of information, and it is difficult to meet the detection needs in complex environments. Single-polarization radars are limited by resolution and accuracy in processing subtle differences in underground media, and have poor adaptability in complex underground environments or when the medium is highly non-uniform, and traditional borehole detection radars cannot solve the positioning and orientation problems of single-hole detection.

[0076] Next, the detection method of the full-polarization borehole radar detection device according to the embodiment of the present invention is described with reference to the accompanying drawings.

[0077] Figure 2 A schematic flow chart of a detection method of a full-polarization borehole radar detection device provided in an embodiment of the present invention.

[0078] like Figure 2As shown, the detection method of the full polarization borehole radar detection device includes the following steps:

[0079] In step S201, a full polarization borehole radar detection device is deployed at a target position and target direction of a target borehole.

[0080] In the actual implementation process, the fully polarized borehole radar detection device is precisely deployed at the predetermined borehole location, and the fully polarized borehole radar detection device is initially configured, including setting basic detection parameters (such as frequency range, scanning speed, etc.), determining the initial direction and position of the equipment, and using the directional positioning unit to calibrate the initial coordinates of the system.

[0081] In step S202, different horizontal polarization antennas and vertical polarization antennas are activated to construct multiple polarization modes.

[0082] In step S203, any polarization mode is selected to collect data according to the target detection requirement to obtain multi-polarization radar data.

[0083] In the actual implementation process, according to the geological conditions and the pre-test results, the radar transmit and receive control unit selects the most appropriate polarization mode (HH, VV, HV, VH), automatically or manually activates different polarization modes, starts the data collection process, monitors the data quality in real time, and adjusts the polarization mode and parameters as needed. The optical fiber control unit then transmits the collected data to the host control unit in real time to ensure the integrity and security of the data during transmission, and uses encryption and data integrity verification mechanisms to prevent data damage or tampering.

[0084] It should be noted that the embodiment of the present invention selects the most suitable polarization mode in the following manner: based on known geological information and previously detected data, analyze the differences in the response effects of different polarization modes on specific geological structures, and implement a preliminary polarization effect evaluation. Develop an intelligent selection algorithm based on a decision tree to dynamically and intelligently select a polarization mode based on the quality and integrity of the reflected signal, and realize real-time automatic adjustment of the polarization mode. Provide visual polarization selection feedback in the user interface of the host control unit, so that the operator can intuitively understand the current polarization state and its effect.

[0085] In step S204, the real-time position and real-time direction of the full-polarization borehole radar detection device are determined.

[0086] In step S205, it is determined whether the transmitting antenna unit and the receiving antenna unit are at the target position and target direction according to the real-time direction and the real-time position. If not, the transmitting antenna unit and the receiving antenna unit are adjusted to the target position.

[0087] During the actual execution process, the directional positioning unit updates the precise position and orientation of the device in real time, combines the gyroscope and accelerometer data, automatically calibrates the position deviation caused by device movement or external interference, and uses machine learning algorithms to optimize positioning accuracy and reduce the impact of human and mechanical errors.

[0088] In step S206, image reconstruction is performed on the multi-polarization radar data to obtain a three-dimensional underground structure image.

[0089] In the actual execution process, the host control unit receives the transmitted data and performs preprocessing, including removing impulse noise by using the median filter method, decomposing the signal by wavelet transform, and eliminating high-frequency noise interference. The convolutional neural network is designed and trained to extract high-order features from the data, and the recursive feature elimination method is used to select and filter the extracted features to remove redundant and irrelevant features. The back propagation algorithm is used to train the convolutional neural network model to identify and interpret the feature information of the underground structure, and reconstruct a high-resolution underground structure image based on the interpretation results.

[0090] Furthermore, the final imaging results and related analysis data are displayed on the user interface of the host control unit, and interactive tools are provided to allow users to view data and images at different levels, as well as perform parameter adjustments and re-analysis.

[0091] It should be noted that the data processing subunit of the host control unit in the embodiment of the present invention also needs to be optimized. The specific optimization process is: the acquired raw data is normalized to eliminate the influence of different scales and dimensions on the analysis. Advanced noise filtering techniques, such as wavelet transform, are applied to remove background noise and non-correlated frequency components in the data. Deep learning algorithms (such as convolutional neural networks) are used to automatically identify and extract key features of underground structures. The most influential features are selected through techniques such as recursive feature elimination (RFE) to optimize the subsequent learning process and prediction accuracy. Training and validation data sets are constructed from historical detection data to ensure that the data sets cover a wide range of geological conditions and radar responses. The cross-validation method is used to evaluate the generalization ability of the model to ensure the effectiveness and stability of the algorithm on unknown data. Real-time learning during the detection process allows the model to be continuously updated and optimized based on newly received data. User feedback and geological verification results are introduced as part of the learning to continuously adjust and optimize the algorithm parameters. This can significantly improve the analytical ability of the detection data and achieve more accurate qualitative and quantitative analysis of underground structures.

[0092] It should be noted that the above explanation of the embodiment of the full-polarization borehole radar detection device is also applicable to the detection method of the full-polarization borehole radar detection device of this embodiment, which will not be repeated here.

[0093] According to the detection method of the fully polarized borehole radar detection device proposed in the embodiment of the present invention, by introducing fully polarized radar technology, combined with optical fiber communication, directional positioning and data processing technology, combined with the collection and analysis of multi-polarization information, high-resolution three-dimensional imaging and positioning and orientation are achieved, which significantly improves the detection accuracy and recognition ability of underground targets, thereby improving the accuracy, resolution and adaptability of detection, and is suitable for high-precision underground detection needs in complex geological environments. As a result, the problems in the related technology that conventional borehole detection radars are mostly single-polarization radars can only collect single polarization information with a limited amount of information, which is difficult to meet the detection needs in complex environments, single-polarization radars are limited by resolution and accuracy in processing subtle differences in underground media, and have poor adaptability in complex underground environments or when the medium is highly non-uniform, and traditional borehole detection radars cannot solve the positioning and orientation problems of single-hole detection.

[0094] Figure 3 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. The electronic device may include:

[0095] A memory 301 , a processor 302 , and a computer program stored in the memory 301 and executable on the processor 302 .

[0096] When the processor 302 executes the program, the detection method of the full-polarization borehole radar detection device provided in the above embodiment is implemented.

[0097] Furthermore, the electronic device further comprises:

[0098] The communication interface 303 is used for communication between the memory 301 and the processor 302 .

[0099] The memory 301 is used to store computer programs that can be run on the processor 302 .

[0100] The memory 301 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0101] If the memory 301, the processor 302 and the communication interface 303 are implemented independently, the communication interface 303, the memory 301 and the processor 302 can be connected to each other through a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 3 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0102] Optionally, in a specific implementation, if the memory 301, the processor 302 and the communication interface 303 are integrated on a chip, the memory 301, the processor 302 and the communication interface 303 can communicate with each other through an internal interface.

[0103] The processor 302 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention.

[0104] An embodiment of the present invention further provides a computer program product, which implements the detection method of the full-polarization borehole radar detection device as described above when the computer program / instructions are executed by a processor.

[0105] An embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the detection method of the full-polarization borehole radar detection device as described above is implemented.

[0106] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0107] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "N" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0108] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or N executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present invention belong.

[0109] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or N wirings (electronic devices), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways as necessary and then storing it in a computer memory.

[0110] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0111] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0112] In addition, each functional module in each embodiment of the present invention may be integrated into a processing module, or each module may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0113] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A fully polarized borehole radar detection device, characterized in that: include: A transmitting antenna unit, wherein the transmitting antenna unit includes a first horizontally polarized antenna and a first vertically polarized antenna, which are used to transmit horizontally polarized radar signals and vertically polarized radar signals, respectively; A receiving antenna unit, the receiving antenna unit comprising a second horizontally polarized antenna and a second vertically polarized antenna, respectively used to receive the horizontally polarized radar signal and the vertically polarized radar signal; a directional positioning unit, used to measure the real-time direction and real-time position of the transmitting antenna unit and the receiving antenna unit, and determine whether the transmitting antenna unit and the receiving antenna unit are in the target direction and target position according to the real-time direction and the real-time position; A radar transmitting and receiving control unit, used to activate different horizontal polarization antennas and vertical polarization antennas to construct multiple polarization modes, and switch to any polarization mode according to the target detection requirements to collect multi-polarization radar data; A host control unit, used to control the radar transmitting and receiving control unit to collect the multi-polarization radar data, and to reconstruct the multi-polarization radar data to obtain a three-dimensional underground structure image; An optical fiber control unit is used to transmit the multi-polarization radar data to the data processing unit.

2. The full polarization borehole radar detection device according to claim 1, characterized in that: The multiple polarization modes include a combination of the first horizontal polarization antenna and the second horizontal polarization antenna, a combination of the first horizontal polarization antenna and the second vertical polarization antenna, a combination of the first vertical polarization antenna and the second horizontal polarization antenna, and a combination of the first vertical polarization antenna and the second vertical polarization antenna.

3. The full polarization borehole radar detection device according to claim 1, characterized in that: The radar transmitting and receiving control unit comprises: A controller, wherein the controller switches among the plurality of polarization modes according to the target detection requirement; A first processor is configured to parse the horizontally polarized radar signal and the vertically polarized radar signal to generate the multi-polarization radar data.

4. The full polarization borehole radar detection device according to claim 1, characterized in that: The directional positioning unit comprises: a gyroscope, the gyroscope being used to measure the current direction and current speed of the transmitting antenna unit and the receiving antenna unit when they are in the target wellbore; an accelerometer, the accelerometer being used to measure the current acceleration of the transmitting antenna unit and the receiving antenna unit when they are in the target wellbore; A geomagnetic sensor, the geomagnetic sensor is used to measure the geomagnetic field in the target wellbore; a calculation unit, the calculation unit being connected to the gyroscope and the accelerometer respectively, and being used for calculating a current position according to the current speed, the current acceleration and the geomagnetic field; An execution unit is connected to the calculation unit and is used to determine whether the current direction is the target direction and whether the current position is the target position. If any one of the two is not the target direction, the transmitting antenna unit and the receiving antenna unit are adjusted to the target direction and / or the target position.

5. The full polarization borehole radar detection device according to claim 1, characterized in that: The host control unit comprises: a second processor, the second processor being used to send an instruction to the radar transmitting and receiving control unit to collect the multi-polarization radar data; A data processing subunit, wherein the data processing unit is used to perform image reconstruction processing on the multi-polarization radar data using a machine learning optimization algorithm to obtain the three-dimensional underground structure image.

6. The full polarization borehole radar detection device according to claim 5, characterized in that: The data processing subunit comprises: A denoising subunit, used for removing impulse noise and high-frequency noise in the multi-polarization radar data by using a median filtering method and a wavelet transform to obtain denoised multi-polarization radar data; A feature extraction subunit, used to extract high-order features from the denoised multi-polarization radar data using a convolutional neural network, and select and screen the high-order features using a recursive feature elimination method to obtain actual feature information; The image reconstruction subunit is used to reconstruct the image according to the actual feature information to obtain the three-dimensional underground structure image.

7. A detection method of a full polarization borehole radar detection device, characterized in that: The fully polarized borehole radar detection device according to any one of claims 1 to 6 comprises the following steps: Deploy a full polarization borehole radar detection device at a target position and target direction of a target borehole; Activate different horizontally polarized antennas and vertically polarized antennas to create multiple polarization modes; Select any polarization mode for data collection according to the target detection requirement to obtain multi-polarization radar data; Determining the real-time position and real-time direction of the fully polarized borehole radar detection device; Determine whether the transmitting antenna unit and the receiving antenna unit are at the target position and the target direction according to the real-time direction and the real-time position, and if not, adjust the transmitting antenna unit and the receiving antenna unit to the target position; Image reconstruction is performed on the multi-polarization radar data to obtain a three-dimensional underground structure image.

8. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the detection method of the full-polarization borehole radar detection device as claimed in claim 7.

9. A computer program product, characterized in that When the computer program / instruction is executed by the processor, the detection method of the full-polarization borehole radar detection device described in claim 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the detection method of the full-polarization borehole radar detection device as claimed in claim 7.

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