Signal processing method, transmission method, electronic equipment and angle detection device

Abstract

According to the signal processing method, the transmission method, the electronic equipment and the angle detection device provided by the invention, the rotation angle data is generated and processed in the installation process of the borehole stressmeter, so that the rotation angle of the borehole stressmeter can be accurately monitored in real time, and the rotation angle is converted into the signal adaptive to the sectional dimension of the connecting device for transmission. By modulating the frequency band of the signal, the problem of signal attenuation in a deep hole environment can be effectively solved, the signal can still be stably transmitted in a complex environment, and the data precision and the transmission reliability in the installation process of the borehole stressometer are improved, so that the geological disaster prediction and prevention efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of angle detection, and in particular to a signal processing method, a transmission method, an electronic device and an angle detection device. Background Art

[0002] Borehole stress gauges are important instruments for monitoring the internal stress state of rock formations and are widely used in safety monitoring of mines, tunnels and other underground projects. By measuring stress changes, engineers can predict and prevent geological disasters such as rock collapse or mine tremors. However, the measurement accuracy of borehole stress gauges depends largely on their installation angle in the borehole. Traditional methods of installing borehole stress gauges usually cannot accurately control the rotation angle of the stress gauge, resulting in errors in the measurement data, which affects the accuracy of engineering safety assessments.

[0003] One feasible method is to detect the rotation angle of the borehole stress gauge through an angle detection device when installing the borehole stress gauge. Because the holes are often deep, the wired data transmission method is often unable to adapt to the deep holes of different depths on site, so wireless data transmission can be used. However, the diameter of the hole is small, and other devices for installing the borehole stress gauge are also configured in the hole, such as a connection device. Therefore, the signal is severely attenuated in this scenario. Summary of the invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies and provide a signal processing method, a transmission method, an electronic device and an angle detection device to solve the technical problem of serious signal attenuation in the related art.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a signal processing method, the method comprising: During the installation process of the borehole stress gauge, a first signal is generated; wherein the first signal is a signal representing rotation angle data; wherein the rotation angle data is data representing the rotation angle of the borehole stress gauge in the installation hole; The first signal is processed to modulate the frequency band of the first signal to a target frequency band to obtain a second signal; wherein the target frequency band is adapted to the cross-sectional size of the connecting device; wherein the connecting device is at least used to rotate the drilling stress gauge in the mounting hole.

[0006] In a second aspect, the present invention provides a signal transmission method, the method comprising: The second signal is transmitted to the target device; wherein the second signal is the second signal obtained by the above method.

[0007] In a third aspect, the present invention provides an electronic device comprising: a memory, and one or more processors communicatively connected to the memory; the memory stores instructions executable by the one or more processors, and the instructions are executed by the one or more processors so that the one or more processors implement the above-mentioned method.

[0008] In a fourth aspect, the present invention provides an angle detection device, which adopts the above method, or includes the above electronic device.

[0009] Beneficial effects: The present invention can accurately monitor the rotation angle of the stress gauge in real time by generating and processing the rotation angle data during the installation of the drilling stress gauge, and convert it into a signal adapted to the cross-sectional size of the connecting device for transmission. By modulating the frequency band of the signal, the problem of signal attenuation in a deep hole environment can be effectively solved, ensuring that the signal can still be stably transmitted in a complex environment, improving the data accuracy and transmission reliability during the installation of the stress gauge, and thus improving the efficiency of geological disaster prediction and prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a flow chart of a signal processing method provided by an embodiment of the present invention; Figure 2 is a flow chart of a signal processing method provided by an embodiment of the present invention; Figure 3 is a block diagram of an excitation source circuit provided by an embodiment of the present invention; Figure 4 is a flow chart of a signal processing method provided by an embodiment of the present invention; Figure 5 It is a block diagram of an electronic device used in an embodiment of the present invention. DETAILED DESCRIPTION

[0011] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0012] like Figure 1 As shown, this embodiment provides a signal processing method, which may include: Step S102: During the installation process of the drilling stress gauge, a first signal is generated; wherein the first signal is represented as a signal of rotation angle data; wherein the rotation angle data is data representing the rotation angle of the drilling stress gauge in the installation hole.

[0013] In this embodiment, the generated action can be represented as first acquiring one or more physical data related to the rotation of the strain gauge, and then generating a corresponding first signal based on the one or more physical data. Specifically, one or more physical data related to the rotation of the strain gauge can be sensed by a sensor. After the controller receives the physical data, it is processed and converted into a first signal. Therefore, the first signal is an electrical signal representing the rotation angle data. More specifically, the first signal can be an analog signal, which can indicate that the data sensed by the sensor is transmitted in the form of a continuous voltage or current. The first signal can also be a digital signal. In some cases, the sensor data can also be digitally processed to generate a discrete electrical signal based on 0 and 1.

[0014] Specifically, the one or more physical data related to the rotation of the stress gauge may be the azimuth data of the borehole stress gauge relative to the earth's magnetic field (for example, it may be yaw angle data) and the acceleration data of the borehole stress gauge. More specifically, a three-axis magnetometer and a three-axis accelerometer may be configured in the angle detection device. During the installation of the borehole stress gauge, the direction of the earth's magnetic field may be detected by the three-axis magnetometer in the angle detection device, thereby determining the azimuth of the borehole stress gauge relative to the earth's magnetic field. The acceleration of the borehole stress gauge may be detected by the three-axis accelerometer, thereby determining the inclination angle of the borehole stress gauge (for example, it may be a pitch angle and a roll angle). Then, by combining the data of the three-axis magnetometer with the data of the three-axis accelerometer, the rotation angle data of the borehole stress gauge may be calculated. The rotation angle data is then converted into a first signal.

[0015] Specifically, the one or more physical data related to the rotation of the strain gauge may also be the rotation angle data of the drilling strain gauge. More specifically, an optical encoder may be configured in the angle detection device, and during the installation of the drilling strain gauge, the rotation angle may be measured by reading the encoder disk installed on the rotating shaft through the optical encoder. The encoder disk has marks, and the optical sensor accurately calculates the rotation angle by the changes of these marks. The rotating shaft may be a shaft built into the angle detection device.

[0016] Specifically, the one or more physical data related to the rotation of the strain gauge may also be the rotation angular velocity and gravity direction data of the drilling strain gauge. More specifically, a three-axis gyroscope and a gravity sensor may be configured in the angle detection device. The rotation angular velocity may be detected by the three-axis gyroscope, and the rotation angular velocity may reflect the rotation speed and change direction of the drilling strain gauge during the installation process. The gravity direction of the drilling strain gauge at rest may be detected by the gravity sensor to compensate for the drift of the gyroscope and provide more stable attitude data. The rotation angular velocity provided by the three-axis gyroscope may be integrated and calculated to obtain the rotation angle data.

[0017] It is understandable that during the installation of the borehole stress gauge, the angle detection device is connected behind the borehole stress gauge, and the borehole stress gauge can be rotated by rotating the angle detection device. Therefore, the rotation angle of the borehole stress gauge in the installation hole can be detected by the angle detection device.

[0018] In this embodiment, the mounting hole may be pre-set. The mounting hole refers to a hole pre-set in a rock formation or other underground structure for mounting a borehole stress gauge. The mounting hole provides a suitable mounting location for the borehole stress gauge to monitor stress changes inside the rock formation.

[0019] In most cases, the depth of the mounting hole is usually deep so that the strain gauge can be placed at a specific location inside the rock formation. Of course, it is understandable that the depth is selected based on the stress change area that needs to be monitored, but it is often necessary to reach a certain depth to capture the true stress state inside the rock formation.

[0020] Step S104: Processing the first signal to modulate the frequency band of the first signal into a target frequency band to obtain a second signal; wherein the target frequency band is adapted to the cross-sectional size of the connecting device; wherein the connecting device is at least used to rotate the drilling stress gauge in the mounting hole.

[0021] It is understandable that when transmitting signals in a deep hole, the depth, hole wall material, and devices in the hole (such as connecting devices) will cause signal attenuation. Especially in the case of a deep installation hole, directly transmitting the unmodulated first signal will often suffer from severe signal loss. The signal strength decreases exponentially with the increase of distance, especially in a complex environment, and may also be interfered by reflection, scattering, absorption, etc., making the signal transmission unstable or even distorted. Therefore, it is difficult to ensure the effective transmission of the unprocessed first signal in a deep hole.

[0022] Therefore, a hollow connection device can be provided so that the signal can be transmitted in the hollow connection device. Therefore, in order to ensure that the signal will not be attenuated or reflected in such a narrow space, the signal frequency band needs to be adjusted to a range suitable for the spatial structure. Through modulation, the first signal can adapt to the cross-sectional size of the connection device, thereby ensuring that the signal can be stably propagated along the internal space.

[0023] It is also understood that different cross-sectional dimensions of the connecting device directly affect the frequency band selection of the signal propagation. For example, the cross-sectional shape of a waveguide or other hollow device may be square, circular or rectangular. Each shape has a specific frequency transmission range. Only when the signal frequency band matches the cross-sectional dimension can the signal propagate inside the device without significant attenuation.

[0024] In this embodiment, the connecting device can be a waveguide tube of various cross-sectional shapes and cross-sectional sizes. Specifically, a plurality of waveguide tubes can be connected to each other to form a longer connecting device, for example, a connecting device of 15 meters to 20 meters. When the drilling stress gauge needs to be installed, first, the drilling stress gauge, the angle detection device and the connecting device can be connected in sequence. That is, one end of the drilling stress gauge is connected to one end of the angle detection device, and the other end of the angle detection device is connected to one end of the connecting device. Then, the user can use the connecting device to push the drilling stress gauge deeper into the mounting hole, and rotate the drilling stress gauge by rotating the connecting device. The connecting device is hollow inside and can be used to transmit signals. The angle detection device can transmit a second signal through the connecting device.

[0025] In some embodiments, the connecting device may also be a hollow connecting rod, a metal pipe, a composite material conduit or an insulating conduit. Specifically, the hollow connecting rod can not only transmit rotational motion, but also serve as a signal transmission channel, allowing the signal to propagate inside it. The cross-section of the hollow connecting rod may be circular, square or other shapes. The metal pipe may be used as a conductor for signal transmission. The metal pipe may allow signal propagation through its internal hollow portion, while its metal material provides a shielding effect to reduce external electromagnetic interference. The composite material conduit may be made of high-strength, low-weight material. The composite material conduit may have a hollow structure, thereby having a signal transmission function. The insulating conduit may prevent interference with external metal substances during signal transmission, and may be suitable for environments with high electromagnetic compatibility requirements.

[0026] Therefore, first of all, step S104 is not only applicable to waveguides, but also to other hollow connecting devices. Regardless of the shape and size of the device, the modulated signal can be effectively propagated on the internal paths of these devices, ensuring that the signal can pass through the long-distance deep hole environment and reach the target device. Then, since the first signal is easily reflected and attenuated in the deep hole environment without modulation, it is modulated by step S104 to generate a second signal suitable for the cross-sectional size of the current connecting device, which can significantly improve the transmission performance of the signal, reduce transmission losses, and ensure efficient propagation of the signal in the deep hole. Finally, step S104 modulates the signal and adjusts it to a frequency band suitable for the device, so that the signal can be effectively propagated in the waveguide or other hollow devices, avoiding signal loss caused by frequency mismatch.

[0027] In this embodiment, the processing action can be represented as converting the first signal representing the rotation angle from the original frequency state to a frequency range that meets the requirements of the target propagation medium (such as a waveguide) through one or more modulation steps. The goal of the processing is to ensure that the signal can be effectively propagated in a deep hole environment and reduce attenuation and distortion during the propagation process.

[0028] In summary, in this embodiment, by generating and processing the rotation angle data during the installation of the drilling stress gauge, the rotation angle of the stress gauge can be accurately monitored in real time and converted into a signal adapted to the cross-sectional size of the connecting device for transmission. By modulating the frequency band of the signal, the problem of signal attenuation in a deep hole environment can be effectively solved, ensuring that the signal can still be stably transmitted in a complex environment, improving the data accuracy and transmission reliability during the installation of the stress gauge, and thus improving the efficiency of geological disaster prediction and prevention.

[0029] In some embodiments, the connecting device is a waveguide, and the target frequency band is preset by the following method: At least one set of frequency coefficients of the waveguide is configured; wherein the frequency coefficients of the set of waveguides include a starting frequency coefficient and a cutoff frequency coefficient.

[0030] In this embodiment, the frequency coefficient is a parameter used to calculate the starting frequency and the cutoff frequency of the waveguide, and the frequency coefficient depends on the cross-sectional shape and size of the waveguide. The waveguide limits the frequency band in which the signal propagates through its cross-sectional size, and the frequency coefficient can help determine the starting and cutoff frequency ranges of the signal propagating in the waveguide. Specifically, the starting frequency coefficient is the lowest frequency at which the waveguide can transmit the signal, indicating the frequency at which the signal begins to effectively propagate in the waveguide. Below this frequency, the signal cannot propagate stably in the waveguide. The cutoff frequency coefficient is the highest frequency at which the waveguide can transmit the signal, indicating the highest frequency at which the signal is effectively transmitted in the waveguide. Exceeding this frequency, the signal will be attenuated or distorted.

[0031] In this embodiment, multiple groups of waveguide frequency coefficients can be configured to adapt to the field environment. For example, the frequency coefficients of rectangular waveguides can be configured, the frequency coefficients of square waveguides can be configured, and the frequency coefficients of circular waveguides and polygonal waveguides (for example, hexagonal, octagonal, etc.) can also be configured.

[0032] In this implementation, the configured frequency coefficients may be two constants, specifically a starting frequency coefficient and a cutoff frequency coefficient.

[0033] The cross-sectional dimensions of the at least one set of waveguides are configured.

[0034] It is understandable that the cross-sectional dimensions of the waveguide (e.g., the long and short sides of a rectangular waveguide, the diameter of a circular waveguide) determine the lowest propagable frequency (starting frequency) and the highest propagable frequency (cutoff frequency) of the signal. The signal frequency band must be between the starting frequency and the cutoff frequency to be effectively transmitted. Configuring the cross-sectional dimensions ensures that the accurate starting and cutoff frequencies are calculated through the formula to determine the appropriate target frequency band. In actual engineering applications, the cross-sectional dimensions of the waveguide are not fixed and may vary depending on the physical limitations, spatial conditions, or application requirements of the site. By pre-configuring multiple groups of waveguides with different cross-sectional dimensions, you can flexibly respond to different installation conditions and select the optimal frequency band for each cross-sectional dimension to ensure that the signal can be transmitted smoothly in various environments.

[0035] It can also be understood that the cross-sectional dimensions of the configured waveguide can also correspond to the cross-sectional type of the waveguide. Waveguides of each cross-sectional type have different geometric shapes, resulting in different propagation modes of electromagnetic waves in the tube. Therefore, suitable frequency coefficients can be configured for different cross-sectional types to ensure stable transmission of the signal therein. Even if the dimensions of the waveguides (such as the long side or diameter) are the same, the propagation frequency bands of the signals will still be different due to their different cross-sectional types (such as rectangular and circular). Therefore, the cross-sectional dimensions configured in this embodiment can correspond to the cross-sectional type of the waveguide. For example, multiple commonly used standard sizes can be configured for square waveguides, circular waveguides, and polygonal waveguides, respectively.

[0036] At least one target frequency band is obtained based on the frequency coefficient of the at least one group of waveguides and the cross-sectional dimensions.

[0037] In this implementation, at least one target frequency band may be calculated based on a preset formula.

[0038] Specifically, in a possible implementation, the target frequency band of the rectangular waveguide may be: In the formula, is the starting frequency, It is expressed as the starting frequency coefficient when the waveguide is rectangular, Expressed as the length of the long side of the matrix waveguide.

[0039] In the formula, is the cut-off frequency, It is expressed as the cutoff frequency coefficient when the waveguide is rectangular, Expressed as the length of the long side of the matrix waveguide.

[0040] In some embodiments, the calculation formula for the target frequency band of the circular waveguide may be: The start frequency may be the start frequency coefficient / diameter, and the cutoff frequency may be the cutoff frequency coefficient / diameter.

[0041] In some embodiments, the calculation formula in the target frequency band of the polygonal waveguide may be: The start frequency can be the start frequency coefficient / side length, and the cutoff frequency can be the cutoff frequency coefficient / side.

[0042] In this embodiment, multiple target frequency bands are pre-configured to flexibly cope with the diversity of on-site installation hole sizes and waveguide cross-sectional sizes. Since the environment may change during the actual installation process, by pre-setting multiple groups of frequency bands, the target frequency band that is adapted can be quickly selected according to on-site conditions. This not only improves the flexibility and efficiency of installation, but also ensures that the signal can be stably transmitted in waveguides of different sizes and shapes, avoiding signal attenuation or distortion caused by frequency band mismatch, and improving adaptability and reliability.

[0043] like Figure 2 As shown, in some implementations, the step of processing the first signal to modulate the frequency band of the first signal to a target frequency band to obtain the second signal includes: Step S1042: Generate a high-frequency carrier signal in the target frequency band.

[0044] In this implementation, a high-frequency carrier signal in the target frequency band may be generated by an oscillator, which may be a crystal oscillator or a voltage-controlled oscillator.

[0045] In some implementations, considering that the frequency of the high-frequency carrier signal generated by the oscillator is within the target frequency band, the frequency of the oscillator can also be fine-tuned by a digital frequency synthesizer to ensure that the output signal is stable and meets the requirements.

[0046] Step S1044: modulate the first signal and the high-frequency carrier signal so that the rotation angle data is embedded in the high-frequency carrier signal, thereby obtaining a second signal.

[0047] In this embodiment, the first signal can be modulated with the high-frequency carrier signal by a modulator. The modulator modulates the input rotation angle signal (first signal) with the high-frequency carrier signal. The modulation method can be frequency modulation (FM) or amplitude modulation (AM) so as to embed the rotation angle information into the high-frequency carrier and generate a second signal suitable for transmission.

[0048] In this embodiment, by generating a high-frequency carrier signal and modulating the first signal with it, the rotation angle data can be effectively embedded in the high-frequency signal. This modulation method not only improves the frequency band of the signal, ensuring that the signal adapts to the propagation conditions in deep holes or complex environments, but also greatly enhances the anti-interference ability of the signal. By modulating the low-frequency first signal into a high-frequency second signal, signal attenuation can be reduced in long-distance transmission, ensuring accurate transmission of the rotation angle data, and improving the stability and reliability of the entire system.

[0049] In some implementations, the step of generating a high frequency carrier signal in the target frequency band includes: A selection instruction input by a user is received; the selection instruction carries at least the cross-sectional size of the current waveguide. In this embodiment, the angle detection device can be configured with a corresponding interactive interface. The user can input selection instructions through the interactive interface. The interactive interface can be a physical button, a touch screen or a software control panel, and the user can input selection instructions related to the current waveguide cross-sectional size through the interface. Specifically, the angle detection device can be integrated with a touch screen, and the user can input the cross-sectional size of the waveguide through the touch screen. A series of options are provided on the screen for the user to choose, such as the shape of the waveguide (circular, rectangular, square, etc.) and the cross-sectional size. Accordingly, the angle detection device can be built-in with a preset waveguide size library for the user to choose. For example, the interface can list a variety of common cross-sectional shapes (such as circular, rectangular, square) and common sizes, and the user only needs to select the corresponding option.

[0050] In this embodiment, the selection instruction may carry not only the cross-sectional size of the current waveguide, but also the cross-sectional shape of the current waveguide.

[0051] Based on the selection instruction, a target frequency band adapted to the cross-sectional size of the current waveguide is determined.

[0052] In this embodiment, the frequency coefficients of the cross-sectional shapes of multiple waveguides can be configured in advance in the angle detection device. Based on the cross-sectional shape carried in the selection instruction, the cross-sectional shape of the target waveguide is first determined, thereby determining the corresponding frequency coefficient. Then, based on the cross-sectional size of the waveguide carried in the selection instruction and a preset calculation formula, the target frequency band that matches the cross-sectional size of the current waveguide is calculated.

[0053] Based on the target frequency band matched with the cross-sectional size of the current waveguide, a corresponding high-frequency carrier signal is generated.

[0054] In this embodiment, the user is allowed to independently select the cross-sectional dimensions of the waveguide during installation, and a high-frequency carrier signal of a target frequency band matching the cross-sectional dimensions is generated based on the user's selection. This flexibility enables dynamic adaptation to different waveguide dimensions according to field conditions, thereby ensuring that the signal accurately matches the geometric characteristics of the waveguide. In this way, the transmission efficiency and quality of the signal are greatly improved, avoiding signal attenuation or distortion caused by mismatching the frequency band and the waveguide, thereby improving the adaptability and reliability of the system.

[0055] In some embodiments, the method further comprises: amplifying the second signal to obtain an amplified second signal; or Filtering is performed on the second signal to obtain a filtered second signal.

[0056] In this implementation, a power amplifier may be used to amplify the second signal to obtain an amplified second signal.

[0057] In this embodiment, a filter may be used to filter the second signal to obtain a filtered second signal. For example, a low-pass filter, a high-pass filter or a band-pass filter may be used.

[0058] In this embodiment, by performing amplification or filtering on the second signal, the transmission quality and reliability of the signal can be effectively improved. Amplification can enhance the signal strength, especially in long-distance transmission or deep hole environments, and can reduce signal attenuation to ensure that the signal can reach the target device smoothly. Filtering can remove noise and interference in the signal, ensure the purity and stability of the signal, and avoid transmission errors caused by high-frequency interference or unnecessary harmonics. The combination of the two can improve the strength and accuracy of the signal and ensure the accuracy of data transmission.

[0059] In a possible implementation, an excitation source circuit may be used to process the first signal to modulate a frequency band of the first signal into a target frequency band to obtain a second signal.

[0060] like Figure 3 As shown, specifically, the excitation source circuit may include: An oscillator is used to generate a stable high-frequency carrier signal, the frequency of which is limited between the above-mentioned starting frequency and cut-off frequency.

[0061] A modulator modulates the input rotation angle signal (first signal) with a high-frequency carrier signal. The modulation method can be frequency modulation (FM) or amplitude modulation (AM) so that the rotation angle information is embedded in the high-frequency carrier to generate a second signal suitable for transmission.

[0062] Amplifier,Since the complex layout of the deep hole environment may cause signal attenuation, the amplifier amplifies the power of the modulated second signal to ensure that the signal has sufficient strength during transmission to reach the target device.

[0063] The filter purifies the modulated signal, removes unnecessary frequency components and harmonics, and ensures the purity of the output signal and the accuracy of the frequency band.

[0064] Accordingly, the excitation source circuit may further include: The modulated and amplified second signal is transmitted in the form of microwaves through the antenna. The antenna can be arranged inside the waveguide, allowing the signal to be transmitted through the waveguide and transmitted in space.

[0065] like Figure 4 As shown, in some embodiments, the step of generating the first signal includes: Step S1022: Acquire first data and second data; wherein the first data is acceleration data representing the drilling stress gauge during the installation process, and the second data is rotational angular velocity data representing the drilling stress gauge during the installation process.

[0066] In this embodiment, the first data may be acceleration information of the drilling stress gauge during the installation process detected by the accelerometer.

[0067] In this embodiment, the second data may be rotation angular velocity information detected by a gyroscope (angular velocity sensor).

[0068] Step S1024: Generate third data based on the first data and the second data; wherein the third data is data representing a rotation angle.

[0069] In this embodiment, when the drilling stress gauge moves in the hole, due to the effects of gravity and inertia, the acceleration along the deep hole direction (for example, it can be the vertical downward gravity acceleration) is the main one. The first data represents the acceleration of the drilling stress gauge moving up and down in the hole, which can be used to determine whether the drilling stress gauge has additional movement during installation.

[0070] In this embodiment, the rotation angular velocity is obtained by the gyroscope sensor, which indicates the speed at which the strain gauge rotates around the axis of the deep hole, and can be used to calculate the rotation angle of the drilling stress gauge.

[0071] Since the rotation angle mainly depends on the rotation angular velocity, the cumulative angle of the strain gauge rotating in the hole can be directly obtained by integrating the angular velocity over time. Specifically: The angular velocity of rotation can be integrated: In the formula, It can represent the rotational angular velocity information, that is, the angular velocity around the hole axis. is the rotation angle at the current moment, is the initial angle.

[0072] The first data can be used to correct the drift of the rotation angular velocity. For example, if the acceleration data changes dramatically, it may mean that the strain gauge has vibrated or other displacements during the installation process. This information can be used to assist in determining the stability of the rotation.

[0073] Therefore, in order to improve the accuracy of rotation angle calculation, a sensor fusion algorithm, such as a Kalman filter or a complementary filter, can be used to combine acceleration and angular velocity data. Specifically, the above-mentioned sensor fusion algorithm can be used to combine the first data and the second data, and the long-term stability of the acceleration data can be used to correct the angle error caused by the accumulation of rotation angular velocity. The algorithm will rely on the rotation angular velocity data to capture the rapid rotation changes of the strain gauge in the short term, and rely on the acceleration data to correct and stabilize the rotation angle in the long term. By fusing the first data and the second data, the rotation angle data finally generated is more accurate, which can not only quickly respond to the real-time rotation of the strain gauge, but also maintain the stability and reliability of the data for a long time.

[0074] Step S1026: Convert the third data into the first signal.

[0075] In this embodiment, the controller can convert the rotation angle data (third data) into a first signal suitable for subsequent modulation and transmission. For example, the rotation angle data can be encoded into a string of binary signals (such as 0101...). These binary signals can represent the numerical value of the rotation angle. The rotation angle data can also be converted into a voltage or current signal, and the size of the signal is proportional to the angle. For example, the larger the rotation angle, the higher the output voltage value.

[0076] In this embodiment, by acquiring acceleration data and rotational angular velocity data, the rotation angle of the borehole stress gauge during the installation process can be accurately calculated in real time and converted into a first signal. This method generates more accurate angle information by fusing data from multiple sensors, ensuring that the dynamic changes in the rotation angle can be accurately captured, thereby improving the monitoring accuracy during the installation process. Ultimately, this accurate angle information helps with subsequent data processing and signal transmission, improving overall reliability and data accuracy.

[0077] This embodiment provides a signal transmission method, which may include: The second signal is transmitted to the target device; wherein the second signal is the second signal obtained in the above implementation.

[0078] In this embodiment, the target device may be a wireless detection device, such as a handheld intelligent terminal. The target device may also be a server.

[0079] The wireless detection device can analyze the second signal and display the current rotation angle of the drilling stress gauge, thereby helping the user to determine the current rotation angle of the drilling stress gauge in the installation hole.

[0080] In some implementations, the target device may also be a wireless relay device, and the second signal is transmitted to the wireless detection device or the server via the wireless relay device.

[0081] In some implementations, the step of transmitting the second signal to the target device includes: The second signal is transmitted to the internal space of the connecting device through the antenna, and then transmitted to the target device; wherein the antenna is at least partially configured in the internal space of the connecting device.

[0082] In this embodiment, the antenna may be fully extended into the inner space of the connecting device or partially extended into the inner space of the connecting device.

[0083] In this embodiment, by partially or completely configuring the antenna in the internal space of the connection device, the physical structure of the connection device can be effectively used as the transmission path of the signal. This design can not only reduce the interference of the external environment on the signal transmission, but also reduce the attenuation of the signal in a complex environment. In addition, the signal is directly transmitted internally, which reduces external interference and signal reflection, improves the transmission efficiency and reliability of the signal, and is particularly suitable for scenarios where space is limited or high-fidelity signal transmission is required.

[0084] According to an embodiment of the present invention, an electronic device is provided. Figure 5 The electronic device in this embodiment may include one or more of the following components: a processor, a network interface, a memory, a non-volatile memory, and one or more applications, wherein the one or more applications may be stored in the non-volatile memory and configured to be executed by one or more processors, and the one or more programs are configured to execute the method described in the aforementioned method embodiment.

[0085] According to an embodiment of the present invention, there is provided an angle detection device, which adopts the signal processing method in the above-mentioned embodiment, or includes the above-mentioned electronic device.

[0086] According to an embodiment of the present invention, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a computer, the computer executes the method described in any of the above embodiments.

[0087] According to an embodiment of the present invention, a computer program product including instructions is also provided. When the instructions are executed by a computer, the computer executes the method in any one of the above embodiments.

[0088] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0089] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0090] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0091] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0092] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A signal processing method, characterized in that: The method comprises: During the installation process of the borehole stress gauge, a first signal is generated; wherein the first signal is a signal representing rotation angle data; wherein the rotation angle data is data representing the rotation angle of the borehole stress gauge in the installation hole; The first signal is processed to modulate the frequency band of the first signal to a target frequency band to obtain a second signal; wherein the target frequency band is adapted to the cross-sectional size of the connecting device; wherein the connecting device is at least used to rotate the drilling stress gauge in the mounting hole.

2. The method according to claim 1, characterized in that The connecting device is a waveguide, and the target frequency band is preset by the following method: Configure at least one set of frequency coefficients of the waveguide; wherein the frequency coefficients of the set of waveguides include a starting frequency coefficient and a cutoff frequency coefficient; configuring the cross-sectional dimensions of the at least one set of waveguides; At least one target frequency band is obtained based on the frequency coefficient of the at least one group of waveguides and the cross-sectional dimensions.

3. The method according to claim 2, characterized in that The step of processing the first signal to modulate the frequency band of the first signal to a target frequency band to obtain a second signal includes: generating a high frequency carrier signal in the target frequency band; The first signal is modulated with the high-frequency carrier signal so that the rotation angle data is embedded in the high-frequency carrier signal, thereby obtaining a second signal.

4. The method according to claim 3, characterized in that , the step of generating a high-frequency carrier signal in the target frequency band comprises: Receiving a selection instruction input by a user; the selection instruction at least carries the cross-sectional size of the current waveguide; Based on the selection instruction, determining a target frequency band that matches the cross-sectional dimensions of the current waveguide; Based on the target frequency band matched with the cross-sectional size of the current waveguide, a corresponding high-frequency carrier signal is generated.

5. The method according to claim 1, characterized in that The method further comprises: amplifying the second signal to obtain an amplified second signal; or Filtering is performed on the second signal to obtain a filtered second signal.

6. The method according to claim 1, characterized in that The step of generating a first signal comprises: Acquire first data and second data; wherein the first data is acceleration data representing the drilling stress gauge during installation, and the second data is rotational angular velocity data representing the drilling stress gauge during installation; Based on the first data and the second data, third data is generated; wherein the third data is data indicating a rotation angle; The third data is converted into the first signal.

7. A signal transmission method, characterized in that: The method comprises: The second signal is transmitted to the target device; wherein the second signal is a second signal obtained by any method of claims 1-6.

8. The method according to claim 7, characterized in that The step of transmitting the second signal to the target device comprises: The second signal is transmitted to the internal space of the connecting device through the antenna, and then transmitted to the target device; wherein the antenna is at least partially configured in the internal space of the connecting device.

9. An electronic device, characterized in that: include: a memory, and one or more processors communicatively coupled to the memory; The memory stores instructions that can be executed by the one or more processors. The instructions are executed by the one or more processors to enable the one or more processors to implement the method according to any one of claims 1 to 6.

10. An angle detection device, characterized in that: It adopts the method according to any one of claims 1-6, or includes the electronic device according to claim 9.

Images