A non-contact energy and data dual-channel transmission method of a rotary transformer

Abstract

The application relates to the technical field of data transmission, and discloses a rotary transformer non-contact energy and data dual-channel transmission method, which comprises the following steps: identifying energy components and data components of a high-frequency pulse signal, separating an energy transmission frequency band and a data transmission frequency band and embedding a coding sequence; based on a thermal compensation mechanism, making the expansion amount of a compensation structure change synchronously with a main structure; based on the energy transmission frequency band and the data transmission frequency band, establishing a dual-channel control mechanism to avoid interference frequencies and reconstruct waveforms; configuring a frequency band allocation mechanism to make the energy transmission performance and the data anti-interference capability form a complementary relationship in the frequency domain; based on the synergistic effect of the thermal compensation mechanism and the frequency band allocation mechanism, offsetting the influence of deformation on frequency band isolation, and eliminating signal interference through frequency point avoidance and processing based on the coding sequence to optimize energy transmission efficiency and data fidelity. The application can improve data transmission reliability under extreme working conditions.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of data transmission, and particularly relates to a rotary transformer non-contact energy and data dual-channel transmission method. BACKGROUND

[0002] In the continuous rotation operation of the downhole tool of the full-rotation vertical drilling system, the core technical contradiction needs to be solved: how to stably and reliably realize energy supply and high-speed data bidirectional transmission between the rotating part and the fixed base under the complex working conditions that the drilling tool is in high-speed rotation and simultaneously bears the extreme high temperature and high pressure downhole.

[0003] In the prior art, although the contact type slip ring scheme has a simple structure, it has inherent physical wear, is prone to electric sparks, and needs a complex sealing structure, and the like, and in the long-term high-speed rotation and the downhole harsh environment, the reliability and the service life thereof are difficult to guarantee, and there are significant maintenance costs and safety risks.

[0004] The non-contact transmission technology, such as the rotary transformer based on magnetic coupling, provides a possibility for solving the above problems. However, the energy transmission of the technology usually needs a large power, and the strong magnetic field generated thereby will cause serious coupling interference to the weak data signal of the micro-volt level, resulting in distortion or loss of the measured parameters (such as the hole inclination angle, the formation resistivity, and the like); the high-temperature environment downhole will cause thermal expansion deformation of the transmission device body, change the magnetic coupling air gap between the primary and secondary coils, and further cause the transmission efficiency to decrease and the signal to attenuate; the axial vibration and the radial deflection generated by the drilling string in the operation process will introduce strong mechanical vibration interference, resulting in phase fluctuation and intermodulation distortion of the signal, and seriously damaging the real-time performance and the integrity of the data transmission.

[0005] The prior art usually adopts simple frequency separation or shielding measures to try to solve the interference problem, but it is often difficult to dynamically adapt to the dramatic changes in the working conditions, and cannot realize precise and adaptive isolation and cooperation of the energy and data transmission in the frequency domain. The overall performance significantly declines under extreme working conditions.

[0006] Therefore, the application provides a rotary transformer non-contact energy and data dual-channel transmission method to solve the above technical problems. SUMMARY

[0007] The application aims to provide a rotary transformer non-contact energy and data dual-channel transmission method to solve the technical problem of poor data transmission reliability under extreme working conditions in the prior art.

[0008] In order to solve the above technical problems, the application provides a rotary transformer non-contact energy and data dual-channel transmission method, which comprises the following steps:

[0009] In response to the high-frequency pulse signal identifying the energy component and the data component, the energy component and the data component are subjected to frequency band isolation processing, the energy transmission frequency band and the data transmission frequency band are separated, and a coding sequence is embedded in the frequency band isolation processing to suppress transmission distortion.

[0010] Based on the thermal compensation mechanism, the expansion amount of the compensation structure changes synchronously with the main structure to maintain the gap stability of the transmission path.

[0011] Based on the energy transmission frequency band and the data transmission frequency band, a dual-channel control mechanism is established to adjust the transmission frequency point of the energy carrier in the energy transmission frequency band to avoid interference frequency, and the data signal transmitted in the data transmission frequency band is subjected to waveform reconstruction through the coding sequence.

[0012] A frequency band allocation mechanism is configured to dynamically allocate the coverage of the energy transmission frequency band and the data transmission frequency band according to signal phase fluctuations, so that the energy transmission performance and the data anti-interference ability form a complementary relationship in the frequency domain.

[0013] Based on the synergistic effect of the thermal compensation mechanism and the frequency band allocation mechanism, the influence of deformation on frequency band isolation is offset, and signal interference is eliminated through frequency point avoidance and processing based on the coding sequence, to optimize energy transmission efficiency and data fidelity.

[0014] In some embodiments, in response to the high-frequency pulse signal identifying the energy component and the data component, the energy component and the data component are subjected to frequency band isolation processing, the energy transmission frequency band and the data transmission frequency band are separated, and a coding sequence is embedded in the frequency band isolation processing to suppress transmission distortion, further comprising:

[0015] Real-time capture of waveform information of high-frequency pulse signal, acquisition of time domain characteristics;

[0016] The time domain characteristics are decomposed into frequency domain through transformation processing to obtain the corresponding frequency spectrum distribution;

[0017] According to the frequency characteristic difference between energy and data, the energy transmission frequency band and the data transmission frequency band are physically isolated in the frequency domain to form two independent signal channels;

[0018] Anti-interference coding based on a specific sequence is embedded in the data transmission channel, and error correction technology is used to ensure signal integrity.

[0019] In some embodiments, based on the thermal compensation mechanism, the expansion amount of the compensation structure changes synchronously with the main structure to maintain the gap stability of the transmission path, further comprising:

[0020] The composition ratio of the compensation material is selected to make the expansion behavior consistent with the main structure;

[0021] Test the actual expansion of the compensation material in a high-temperature environment, adjust the physical distribution to match the expansion of the main structure;

[0022] Generate a synchronous expansion parameter of the compensation material and the main structure;

[0023] Design a deformation path of the compensation structure based on the synchronous expansion parameter, so that the compensation direction is consistent with the change of the main structure.

[0024] In some embodiments, a dual-channel control mechanism is established based on the energy transmission frequency band and the data transmission frequency band, the transmission frequency point of the energy carrier in the energy transmission frequency band is adjusted to avoid interference frequencies, the data signal transmitted in the data transmission frequency band is waveform reconstructed through the encoding sequence, and the method further includes:

[0025] An independent bandwidth management strategy is configured for the energy transmission frequency band and the data transmission frequency band respectively, and corresponding spectrum resources are allocated;

[0026] The vibration frequency characteristics of the external environment are monitored in real time, and the distribution of interference frequency bands is dynamically tracked;

[0027] According to the distribution of interference frequency bands, the center transmission frequency point of the energy carrier in the energy transmission frequency band is adjusted to maintain a safe isolation interval;

[0028] In the data transmission frequency band, the waveform is reconstructed based on the pilot or training sequence in the encoding sequence.

[0029] In some embodiments, a frequency band allocation mechanism is configured, the coverage of the energy transmission frequency band and the data transmission frequency band is dynamically allocated according to the signal phase fluctuation, the energy transmission performance and the data anti-interference ability form a complementary relationship in the frequency domain, and the method further includes:

[0030] The high-frequency pulse signal phase fluctuation is monitored, and the quantization data of the fluctuation amplitude and duration is obtained;

[0031] According to the distribution characteristics of the fluctuation amplitude and duration quantization data in the energy transmission frequency band and the data transmission frequency band, a set of isolation parameters for guiding frequency band allocation is generated;

[0032] Based on the set of isolation parameters, the center frequency position of the energy transmission frequency band and the available bandwidth range of the data transmission frequency band are dynamically adjusted;

[0033] A mathematical correlation model between the energy transmission power enhancement capability and the data anti-interference enhancement degree is established, and a complementary optimization relationship is formed.

[0034] In some embodiments, based on the synergy of the thermal compensation mechanism and the frequency band allocation mechanism, the influence of deformation on frequency band isolation is offset, and signal interference is eliminated through frequency avoidance and processing based on the encoding sequence, to optimize energy transmission efficiency and data fidelity, further comprising:

[0035] A linkage adjustment mechanism is established between the compensation material deformation amount and the frequency band allocation parameter.

[0036] Based on the compensated transmission path state, the energy emission intensity and the data modulation level are adjusted.

[0037] The frequency avoidance strategy and the anti-interference encoding processing algorithm are synergistically optimized to eliminate signal intermodulation interference.

[0038] In some embodiments, the actual expansion amount of the compensation material in a high temperature environment is tested, and the physical distribution is adjusted to match the expansion of the main structure, further comprising:

[0039] In the test environment, three-dimensional deformation data of the main structure and the compensation material during the heating process are synchronously collected.

[0040] The time sequence difference curve of the expansion amount of the main structure and the compensation material is analyzed and recorded, and the under-compensation area is identified by calculation.

[0041] Based on the under-compensation area, the porosity and density distribution of the compensation material are adjusted by using a density adjustment process, so that the expansion synchronization error between the compensation material and the main structure is controlled within a predetermined threshold.

[0042] Based on the same concept, the present application also provides a non-contact energy and data dual-channel transmission system of a rotary transformer, comprising:

[0043] A signal recognition and processing module is configured to recognize energy components and data components in response to high-frequency pulse signals, perform frequency band isolation processing on the energy components and data components, separate energy transmission frequency bands and data transmission frequency bands, and embed an encoding sequence in the frequency band isolation processing process to suppress transmission distortion.

[0044] A thermal compensation mechanism configuration module is configured to make the expansion amount of the compensation structure change synchronously with the main structure based on the thermal compensation mechanism, to maintain the gap stability of the transmission path.

[0045] A dual-channel control mechanism configuration module is configured to establish a dual-channel control mechanism based on the energy transmission frequency band and the data transmission frequency band, adjust the transmission frequency of the energy carrier in the energy transmission frequency band to avoid interference frequency, and reconstruct the waveform of the data signal transmitted in the data transmission frequency band through the encoding sequence.

[0046] The frequency band allocation mechanism configuration module is configured to configure a frequency band allocation mechanism, dynamically allocate coverage ranges of the energy transmission frequency band and the data transmission frequency band according to signal phase fluctuation, and form a complementary relationship between energy transmission performance and data anti-interference capability in the frequency domain.

[0047] The cooperative optimization module is configured to offset the influence of deformation on frequency band isolation based on the cooperative action of the thermal compensation mechanism and the frequency band allocation mechanism, eliminate signal interference through frequency point avoidance and processing based on the encoding sequence, and optimize energy transmission efficiency and data fidelity.

[0048] Based on the same concept, the present application also provides an electronic device, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete mutual communication through the communication bus; the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the rotary transformer non-contact energy and data dual-channel transmission method.

[0049] Based on the same concept, the present application also provides a computer readable storage medium, which stores a computer program executable by an electronic device, and when the computer program runs on the electronic device, the electronic device executes the steps of the rotary transformer non-contact energy and data dual-channel transmission method.

[0050] Compared with the prior art, the present application has the beneficial effects that:

[0051] The present application discloses a rotary transformer non-contact energy and data dual-channel transmission method, which realizes reliable isolation transmission of energy and data, effectively overcomes performance degradation under high-temperature working conditions, and improves anti-vibration interference capability. BRIEF DESCRIPTION OF DRAWINGS

[0052] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings:

[0053] Figure 1 is a flowchart of the rotary transformer non-contact energy and data dual-channel transmission method in some specific embodiments of the present application;

[0054] Figure 2 is a structural schematic diagram of the rotary transformer non-contact energy and data dual-channel transmission system in some specific embodiments of the present application;

[0055] Figure 3 is a structural schematic diagram of the electronic device in some specific embodiments of the present application.

[0056] In the figure, 710 processor; 720 memory; 730 input device; 740 output device. DETAILED DESCRIPTION

[0057] In order to make the purposes, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0058] The terms used in the embodiments of the present application are only for the purpose of describing particular embodiments and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0059] It should be understood that the term "and / or" used herein only describes an association relationship of associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0060] It should be understood that although the terms first, second, third, etc. can be used in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the description. For example, without departing from the scope of the embodiments of the present application, the first can also be called the second, and similarly, the second can also be called the first.

[0061] Depending on the context, the word "if" as used herein can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if it is determined" or "if (a stated condition or event) is detected" can be interpreted as "when it is determined" or "in response to determining" or "when (a stated condition or event) is detected" or "in response to detecting (a stated condition or event)".

[0062] It should also be noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that a product or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such product or device. Without more limitations, the element defined by the phrase "including a" does not exclude the presence of additional identical elements in the product or device including the element.

[0063] It is particularly noted that the symbols and / or numbers existing in the specification, if not marked in the description of the drawings, are not the drawing marks.

[0064] Referring to Figure 1 A rotating transformer non-contact energy and data dual-channel transmission method, comprising:

[0065] S101, in response to the high-frequency pulse signal identifying the energy component and the data component, performing frequency band isolation processing on the energy component and the data component, separating the energy transmission frequency band and the data transmission frequency band, and embedding a coding sequence in the frequency band isolation processing process to suppress transmission distortion;

[0066] S102, based on a thermal compensation mechanism, the expansion amount of the compensation structure changes synchronously with the main structure to maintain the gap stability of the transmission path;

[0067] S103, based on the energy transmission frequency band and the data transmission frequency band to establish a dual-channel control mechanism, adjust the transmission frequency point of the energy carrier in the energy transmission frequency band to avoid interference frequency, and reconstruct the waveform of the data signal transmitted in the data transmission frequency band through the coding sequence;

[0068] S104, configure a frequency band allocation mechanism, dynamically allocate the coverage of the energy transmission frequency band and the data transmission frequency band according to the signal phase fluctuation, so that the energy transmission performance and the data anti-interference ability form a complementary relationship in the frequency domain;

[0069] S105, based on the synergistic effect of the thermal compensation mechanism and the frequency band allocation mechanism, offset the influence of deformation on frequency band isolation, and eliminate signal interference through frequency point avoidance and processing based on the coding sequence, to optimize the energy transmission efficiency and data fidelity.

[0070] Specifically, in response to the high-frequency pulse signal generated by the secondary end of the resolver rotating coupling device, the waveform of the signal is captured by high-speed sampling, and then the energy carrier component and the data modulation component contained therein are identified; the signal is decomposed into the frequency domain by using fast Fourier transform, the energy transmission frequency band and the data transmission frequency band are physically isolated by using a digital bandpass filter set, independent signal channels are formed, anti-interference coding based on a pseudo-random sequence is embedded in the signal processing process of the data channel, and a forward error correction mechanism is introduced to suppress waveform distortion caused by transmission path distortion. To cope with the influence of high temperature environment on the stability of magnetic coupling, based on the thermal compensation mechanism, the expansion characteristics of the transmission device body under high temperature are determined through material thermodynamic simulation, and a composite material with a matching thermal expansion coefficient is selected as the compensation structure to make its expansion amount under high temperature conditions synchronous with the transmission device body, so as to maintain the stability of the air gap of the magnetic coupling path; the compensation structure is mechanically coupled in a block form in the annular additional unit, and the influence of the body deformation on the gap is offset by the thermal expansion behavior thereof. In the dual-channel control mechanism, according to the separated energy and data frequency bands, independent bandwidth resource management strategies are allocated respectively, the rotational vibration frequency of the drill string is monitored in real time by a vibration sensor, the center frequency point of the energy carrier in the energy transmission frequency band is dynamically adjusted based on the frequency shift keying technology, so as to avoid the frequency band with concentrated vibration interference, and the pilot signal contained in the embedded anti-interference code in the data transmission frequency band is used in combination with an adaptive equalizer to reconstruct and recover the data signal distorted by vibration interference. Configure the frequency division coupling mechanism, real-time monitor the phase fluctuation amplitude and duration of the high-frequency pulse signal through the phase detection circuit, generate frequency band isolation parameters according to the distribution characteristics of the energy and data frequency bands, dynamically adjust the center frequency position of the energy transmission frequency band and the bandwidth range of the data transmission frequency band, establish a quantitative complementary relationship between the energy transmission power improvement and the data anti-interference enhancement, and realize real-time mapping and allocation of the frequency band coverage range through a programmable filter array. Through the synergistic effect of the thermal compensation mechanism and the frequency division coupling mechanism, a linkage response relationship between the deformation amount and the frequency band parameters is established, the material deformation and frequency band reconfiguration are triggered synchronously when the temperature changes, the parameters of the deformed magnetic coupling path are verified based on electromagnetic field simulation, and the energy emission power and the data modulation depth are fine-tuned, the frequency point avoidance strategy and the anti-interference coding demodulation algorithm are jointly optimized, the intermodulation interference components are eliminated at the signal processing level, and then the synchronous optimization of energy transmission efficiency and data fidelity in the full working condition range is realized.

[0071] For example, in the application scenario of full-rotation vertical drilling system, the high-frequency pulse signal output by the secondary end of the rotary transformer is sampled, the sampling frequency is set to 10 MHz, it is identified that the energy carrier is concentrated near 1.2 MHz, and the data modulation component is distributed in the 2.5 MHz frequency band; two frequency bands are isolated by FFT transformation and a set of digital band-pass filters with a center frequency of 1.2 MHz and 2.5 MHz and a bandwidth of 200 kHz, and a Gold sequence with an order of 9 is embedded in the data frequency band as an anti-interference code, and Reed-Solomon code is used as a forward error correction scheme. For high-temperature working conditions, the transmission device body is made of invar alloy, and its thermal expansion coefficient is determined to be 1.2*10 -6 / ℃, the compensation structure is sintered from copper-ceramic composite material in a specific proportion, and its thermal expansion coefficient is adjusted to 1.25*10 -6 / ℃, and the difference between the two expansion amounts is not more than 0.05 mm during the temperature rise from 20℃ to 300℃, so as to maintain the air gap stable near the design value of 0.5 mm. In the double-channel control, the vibration sensor monitors that the main frequency of the drill string vibration is 85 Hz, and accordingly the center frequency of the energy carrier is dynamically shifted from 1.2 MHz to 1.215 MHz to avoid vibration harmonic interference, and the pilot band in the Gold sequence is used to reconstruct the distorted waveform by LMS adaptive equalization algorithm at the data receiving end, and the convergence step is set to 0.01. The frequency division coupling module monitors that the signal phase fluctuation amplitude exceeds 15 degrees and lasts for 5 milliseconds, and determines that the energy frequency band is disturbed, and then adjusts the center frequency of the energy frequency band to 1.21 MHz, and compresses the data frequency band bandwidth from 200 kHz to 180 kHz, and calculates the energy transmission power that can be increased by 3% and the data error rate that can be maintained below 0.001% according to the pre-stored complementary relationship model.

[0072] In some applications, in response to identifying energy components and data components from the high-frequency pulse signal, the energy components and data components are subjected to frequency band isolation processing, the energy transmission frequency band and the data transmission frequency band are separated, and a code sequence is embedded during the frequency band isolation processing to suppress transmission distortion, including capturing the waveform information of the high-frequency pulse signal in real time, obtaining the time domain characteristics; the time domain characteristics are decomposed into the frequency domain by transformation processing to obtain the corresponding frequency spectrum distribution; the energy transmission frequency band and the data transmission frequency band are physically isolated in the frequency domain according to the frequency characteristic difference between the energy and the data, forming two independent signal channels; an anti-interference code based on a specific sequence is embedded in the data transmission channel, and an error correction technique is used to ensure signal integrity.

[0073] It can be understood that the waveform information of the high-frequency pulse signal is captured in real time, the time domain characteristics including the amplitude, period and rise and fall time are obtained, the time domain characteristic signal is processed by fast Fourier transform to be decomposed into frequency domain to obtain the frequency spectrum distribution containing the amplitude and phase information of each frequency component, the energy signal is usually concentrated in the low frequency band and the data signal is modulated in the higher frequency band, the frequency characteristics are different, a digital filter bank is used to physically isolate the energy transmission frequency band and the data transmission frequency band in the frequency domain, two independent signal channels with non-overlapping frequency spectrum are formed, a specific sequence based on the pseudo-random characteristic is embedded in the modulation or coding link of the data transmission channel as an anti-interference code, and a forward error correction coding technology with error correction capability is used to process the signal to ensure that the complete and accurate data information can be recovered when the transmission path is distorted.

[0074] For example, the high-frequency pulse signal from the resolver is captured in real time, the voltage amplitude is 5V, and the pulse width is 0.1 microseconds; the waveform time domain characteristics are obtained by configuring the sampling rate of the ADC to be 100MSPS. The signal is subjected to fast Fourier transform (FFT), the transform point number is 1024 points, the frequency spectrum distribution is obtained, the energy component is mainly concentrated in the 0.8MHz to 1.2MHz frequency band, and the data component is distributed in the 2.0MHz to 2.4MHz frequency band. According to the frequency difference, a Chebyshev type digital bandpass filter is used for frequency band isolation, the center frequency of the energy channel filter is set to 1.0MHz, the bandwidth is 400kHz, the center frequency of the data channel filter is set to 2.2MHz, the bandwidth is 400kHz, and two independent channels with isolation greater than 60dB are formed. In the data channel, a Gold sequence with a period of 1023 is embedded as an anti-interference code, and a Reed-Solomon (255,223) code is used as a forward error correction technology, which can correct up to 16 bytes of error.

[0075] In some applications, based on the thermal compensation mechanism, the expansion amount of the compensation structure is changed synchronously with the main structure to maintain the gap stability of the transmission path, including selecting the component ratio of the compensation material to make the expansion behavior consistent with the main structure; testing the actual expansion amount of the compensation material in a high temperature environment, adjusting the physical distribution to match the expansion of the main structure; generating a synchronous expansion parameter of the compensation material and the main structure; designing a deformation path of the compensation structure based on the synchronous expansion parameter to make the compensation direction consistent with the change of the main structure.

[0076] It can be understood that, according to the chemical composition and thermodynamic properties of the main structure material, the composition and ratio of the matrix and reinforcing phase of the compensation material are selected, and its macroscopic thermal expansion behavior is consistent with that of the main structure in the target temperature range through powder metallurgy or composite preparation process; then the prepared compensation material sample and the main structure sample are placed in a simulated high temperature environment for synchronous thermal expansion test, and the actual expansion data of both at different temperature points are obtained, the expansion difference is analyzed, and the finite element simulation is combined to identify the under-compensation or over-compensation area, and then the physical distribution is optimized by gradient density pressing, local porosity adjustment or functionally graded material preparation process to match the expansion process of the main structure; based on the optimized test data, a set of synchronous expansion parameters of the compensation material and the main structure at different temperatures and heating rates is generated by mathematical fitting method, which fully describes the mapping relationship between the two.

[0077] For example, the main structure of the transmission device adopts invar alloy, and the average linear expansion coefficient is 1.2x10 -6 / ℃ measured by a thermal mechanical analyzer. The compensation material selects a copper-based composite material, and by adjusting the content of silicon carbide particles to 35vol%, the average linear expansion coefficient is matched to 1.25x10 -6 / ℃. The samples of the two are placed in a programmable high temperature test box, and the temperature is raised from 20℃ to 300℃ at a rate of 5℃ / min, and a laser displacement sensor is used to measure the length change synchronously. The test results show that the expansion amount of the main structure at 300℃ is 0.36mm, and the initial expansion amount of the compensation material is 0.38mm, and there is a deviation of 0.02mm. Through finite element analysis, it is found that the edge area of the compensation material has low density, and then the cold isostatic pressing process is used to locally densify the edge under a pressure of 150MPa, and after treatment, the expansion amount of the compensation material at 300℃ is 0.362mm, and the deviation from the main structure is reduced to 0.002mm. Based on this data, the synchronous expansion parameters are generated by linear regression, and the mathematical expression is ΔL_comp=1.008xΔL_main+0.001 (ΔL unit: mm). According to the parameters, the installation base of the compensation structure is designed as a spiral guide groove with an inward inclination of 15 degrees, so that the compensation material block generates a radial outward displacement component when it is heated and expanded, which is opposite in direction and proportional in size to the radial expansion direction of the main structure. After final verification, under the full working condition at 300℃, the change of the magnetic coupling air gap is stably controlled within ±0.01mm, which is better than the ±0.1mm fluctuation before compensation.

[0078] In some applications, a dual-channel control mechanism is established based on the energy transmission frequency band and the data transmission frequency band, the transmission frequency point of the energy carrier in the energy transmission frequency band is adjusted to avoid interference frequencies, the data signal transmitted in the data transmission frequency band is waveform reconstructed through the coding sequence, including configuring independent bandwidth management strategies for the energy transmission frequency band and the data transmission frequency band respectively, and allocating corresponding spectrum resources; the vibration frequency characteristics of the external environment are monitored in real time, and the interference frequency band distribution is dynamically tracked; according to the interference frequency band distribution, the center transmission frequency point of the energy carrier in the energy transmission frequency band is adjusted to maintain a safe isolation interval; in the data transmission frequency band, the waveform is reconstructed based on the pilot or training sequence in the coding sequence.

[0079] It can be understood that independent bandwidth management strategies are configured for the energy transmission frequency band and the data transmission frequency band respectively, continuous spectrum resources are allocated for the energy channel by a resource allocation algorithm with transmission efficiency as the core optimization target, and discrete spectrum resources are allocated for the data channel with anti-interference and bit error rate as the core optimization target; the vibration frequency characteristics of the external environment are monitored in real time, the time domain data of the vibration signal is collected by an acceleration sensor, it is converted into a frequency domain spectrum line by fast Fourier transform, and a peak detection and tracking algorithm is used to dynamically track the interference frequency band distribution and its amplitude change; according to the real-time obtained interference frequency band distribution information, the center transmission frequency point of the energy carrier in the energy transmission frequency band is dynamically adjusted based on the frequency shift keying principle, so that a pre-set safe isolation interval is always maintained between the frequency value and the identified main interference frequency; in the data transmission frequency band, the known pilot signal or training sequence contained in the previously embedded coding sequence is used to calculate the channel transmission characteristics through an adaptive equalizer, and a least mean square error or recursive least square algorithm is used to waveform reconstruct and restore the distorted received signal due to multipath effect, frequency selective fading or external interference, so as to improve the demodulation reliability of the data.

[0080] For example, 80% of the total bandwidth resources are allocated to the energy transmission frequency band (1.0 MHz ± 0.2 MHz) to optimize the transmission power; 20% of the bandwidth resources are allocated to the data transmission frequency band (2.2 MHz ± 0.2 MHz) dynamically, and 10% of the redundant bandwidth is reserved for anti-interference. By installing a three-axis acceleration sensor (sampling rate 1 kHz) on the drill string to monitor vibration, FFT analysis finds that there is a main vibration frequency of 85 Hz and its second harmonic of 175 Hz. According to this, the center frequency of the energy carrier is dynamically adjusted from 1.0 MHz to 1.05 MHz, ensuring that the harmonic frequency of 175 Hz is kept at a safe isolation interval (more than 50 times the frequency width) in the frequency domain. At the data receiving end, every 100th symbol embedded in the Gold sequence is used as a pilot to estimate the channel and reconstruct the waveform using the LMS adaptive equalization algorithm (step factor μ = 0.01). After testing, in the vibration interference environment, the eye opening of the data signal is improved by 40% after using this mechanism, and the bit error rate is reduced from 5 × 10 -3 to 3 × 10 -6 , achieving high-fidelity data transmission.

[0081] In some applications, a frequency band allocation mechanism is configured to dynamically allocate the coverage of the energy transmission frequency band and the data transmission frequency band according to the phase fluctuation of the signal, so that the energy transmission performance and the data anti-interference ability form a complementary relationship in the frequency domain, including monitoring the phase fluctuation of the high-frequency pulse signal, obtaining the quantization data of the fluctuation amplitude and duration; according to the distribution characteristics of the fluctuation amplitude and duration in the energy transmission frequency band and the data transmission frequency band, a set of isolation parameters for guiding frequency band allocation is generated; based on the set of isolation parameters, the center frequency position of the energy transmission frequency band and the available bandwidth range of the data transmission frequency band are dynamically adjusted; a mathematical correlation model between the energy transmission power improvement capability and the data anti-interference enhancement degree is established, forming a complementary optimization relationship.

[0082] It can be understood that the instantaneous phase value of the high-frequency pulse signal is monitored in real time by the high-speed phase detection circuit, the amplitude and duration of the phase fluctuation are calculated by using the sliding window statistical method, and the quantization data thereof are output; according to the quantization data of the fluctuation amplitude and duration, the energy distribution ratio and occurrence frequency thereof in the energy transmission frequency band and the data transmission frequency band are respectively counted, and a set of isolation parameters for guiding frequency band allocation is generated, which at least includes an energy frequency band suggestion offset, a data frequency band recommended bandwidth and an interference intensity weight coefficient; based on the set of isolation parameters, the center frequency position of the energy transmission frequency band is dynamically adjusted to be away from the high-interference area by using the gradient descent optimization algorithm embedded in the frequency division coupling module, and the available bandwidth range of the data transmission frequency band is synchronously adjusted, and the spectral efficiency thereof is optimized by using the raised cosine roll-off filter; finally, by establishing a linear or nonlinear mathematical correlation model between the energy transmission power improvement capability and the data anti-interference enhancement degree, a quantitative mapping rule between the power gain of the energy frequency band when it obtains additional spectrum resources and the bit error rate performance maintained by the data frequency band through compression coding or error correction is defined, so that under the constraint of constant total spectral efficiency, the two form a dynamic complementary optimization relationship of this consumes the other in frequency resource allocation.

[0083] For example, the phase of a high-frequency pulse signal with a center frequency of 1.0 MHz is monitored at a sampling rate of 10 MSPS. The sliding window length is set to 100 sampling points, and an interference event with a phase fluctuation amplitude exceeding 15 degrees and a duration of 5 milliseconds is calculated. Spectral analysis shows that the power ratio of this interference in the energy frequency band (around 1.0 MHz) is 70%, and the power ratio in the data frequency band (around 2.2 MHz) is 30%. According to this, a set of isolation parameters is generated: {energy frequency band offset: +50 kHz, data frequency band bandwidth adjustment: -10%, interference weight: 0.7}. The frequency division coupling module adjusts the energy carrier center frequency from 1.0 MHz to 1.05 MHz, and at the same time, the data frequency band bandwidth is compressed from 400 kHz to 360 kHz. The complementary relationship model established is: ΔP_energy=3%×(ΔBw_data / Bw_data_initial)×K, where K is a correction factor (in this example, K=1.2), and the model shows that a 10% compression of the data bandwidth can exchange for a 3.6% increase in energy transmission power. It has been measured that after adjustment, the energy transmission power is increased from 100 W to 103.6 W, while the data channel adopts a more efficient LDPC encoding, and the bit error rate is still maintained at the level of 1×10 -6 , realizing the complementary optimization of performance.

[0084] In some applications, based on the synergy of the thermal compensation mechanism and the frequency band allocation mechanism, the influence of deformation on frequency band isolation is offset, and signal interference is eliminated through frequency avoidance and processing based on the coding sequence to optimize energy transmission efficiency and data fidelity, including establishing a linkage adjustment mechanism between the compensation material deformation variable and the frequency band allocation parameter; based on the compensated transmission path state, adjusting the energy emission intensity and data modulation level; synergistically optimizing the frequency avoidance strategy and the anti-interference coding processing algorithm to eliminate signal intermodulation interference.

[0085] It can be understood that the real-time linkage adjustment mechanism between the compensation material deformation variable and the frequency band allocation parameter is established, the temperature data and gap change are synchronously collected by the multi-source sensor deployed near the magnetic coupling path, and the mapping function of the frequency band isolation parameter in the frequency division coupling module is constructed, so that when a specific deformation of the compensation material caused by temperature change is detected, the pre-adjustment of the frequency band allocation parameter can be automatically triggered; based on the compensated transmission path state, the changes of the current magnetic coupling coefficient and the path loss are inversely calculated and evaluated in real time by combining electromagnetic field simulation and online parameter identification, and the power amplification level of the energy emission unit and the signal modulation depth of the data modulation unit are adjusted by a closed-loop control strategy, so that the energy transmission intensity and the data signal amplitude are adaptively matched to the optimal operating point; the frequency avoidance strategy and the anti-interference coding processing algorithm are synergistically optimized, the avoidance frequency point information output by the vibration frequency real-time monitoring module is input into the channel estimation and equalization algorithm in the anti-interference encoder and decoder, and the joint processing of spectrum avoidance at the front end and interference cancellation at the back end of the signal processing link is performed, so as to maximize the suppression of signal intermodulation interference components generated by multi-physical field coupling, thereby realizing the synchronous optimization of energy transmission efficiency and data fidelity in the full working condition range.

[0086] For example, the magnetic coupling air gap changes from 0.50 mm to 0.48 mm due to the compensation material deformation caused by the temperature rising from 25℃ to 250℃, which is monitored by an eddy current sensor. The deformation amount triggers the pre-compensation frequency downshift of the energy frequency band center by 25 kHz through the pre-set transfer function (K = Δf / Δg = 50 kHz / mm) of the frequency division coupling module. The online parameter identification based on the Helmholtz coil principle shows that the coupling coefficient k drops by 5%. Accordingly, the energy transmission power is increased from 100 W to 105 W, and the modulation depth of the data signal is adjusted from 0.8 to 0.75 to maintain signal integrity. At the same time, the vibration monitoring module outputs an interference frequency of 85 Hz, and the frequency avoidance strategy finally locks the energy carrier at 1.025 MHz (originally 1.050 MHz). At the receiving end, the joint demodulation is performed using the error correction capability of RS encoding and the pilot-based LMS equalization algorithm (μ = 0.005). Tests show that under the cooperative mechanism, the energy transmission efficiency is stable at 92% ± 1% and the data bit error rate is less than 1 × 10 -6 under a single mechanism.

[0087] In some applications, the actual expansion amount of the test compensation material in a high-temperature environment is tested, and the physical distribution is adjusted to match the expansion of the main structure, including synchronously collecting three-dimensional deformation data of the main structure and the compensation material during the heating process in the test environment; analyzing and recording the time difference curve of the expansion amount of the main structure and the compensation material, and identifying the under-compensation area by calculation; based on the under-compensation area, adjusting the porosity and density distribution of the compensation material using the density adjustment process, so that the expansion synchronization error between the compensation material and the main structure is controlled within a predetermined threshold.

[0088] It can be understood that in the high-temperature test environment simulating the actual working condition, the non-contact optical measuring device and the contact displacement sensor are combined to synchronously collect three-dimensional deformation data of the main structure and the compensation material sample during the program-controlled heating process, and to obtain the expansion displacement amount of the main structure and the compensation material at different temperature points and in different directions; the collected time sequence deformation data is aligned and compared, the expansion amount difference curve of the main structure and the compensation material with temperature change is drawn, and through finite element calculation and thermal-structure coupling simulation, specific areas where the compensation effect does not meet the expectation due to material non-uniformity or boundary condition limitation are identified; based on the spatial distribution and the lack of value of the identified under-compensation area, the porosity distribution and the overall density distribution of the compensation material in these areas are adjusted by using the gradient density pressing process based on powder metallurgy technology or the selective laser sintering additive manufacturing process, so as to regulate the macroscopic thermal expansion behavior by changing the microstructure, and finally the expansion synchronization error between the compensation material and the main structure during the whole heating process is accurately controlled within the predetermined threshold range allowed by the system design.

[0089] For example, the main structure sample made of inconel alloy and the compensation material sample made of copper-based composite material are placed side by side in a high-temperature test furnace. Starting from room temperature 20℃, heat to 300℃ at a rate of 3℃ / min and keep for 30 minutes. During this process, three laser scanners are used to synchronously collect the deformation values of the two samples in X, Y and Z directions at a frequency of 10 times per second. Data analysis shows that at 250℃, the axial expansion of the main structure is 0.300mm, while the expansion of the compensation material in the same direction is 0.318mm, with a deviation of 0.018mm. Through finite element thermal stress analysis, it is found that there is a compensation deficiency area of about 10mm² in the edge area of the compensation material sample close to the clamp. Then the local densification treatment is carried out on this area by cold isostatic pressing process at a pressure of 120MPa, and the average density is increased from the initial 7.8g / cm³ to 8.0g / cm³. After treatment, the above heating test is repeated, and the difference between the expansion values of the two at 250℃ is reduced to 0.002mm, successfully controlling the synchronization error within the system requirement threshold of 0.005mm, ensuring the stability of the magnetic coupling air gap at high temperature.

[0090] The following describes another embodiment of the non-contact energy and data dual-channel transmission method of the rotary transformer:

[0091] This embodiment identifies the energy carrier and data modulation components through the high-frequency pulse signal output by the secondary end of the rotary coupling device, uses frequency band isolation technology to separate the energy transmission frequency band and the data transmission frequency band, and embeds an anti-interference coding sequence in the data signal to resist waveform distortion in the transmission path; a high-speed sampling circuit is deployed at the secondary end of the rotary coupling device to capture the high-frequency pulse signal waveform at the output end in real time. The original signal is decomposed into the frequency domain using fast Fourier transform, and the energy transmission frequency band and the data transmission frequency band are physically isolated by a digital bandpass filter set, forming two independent signal channels. Then, an anti-interference code based on a pseudo-random sequence is embedded in the data channel, and the encoding process uses forward error correction technology to ensure that the signal can maintain complete data structure when distortion occurs in the transmission path. Quality monitoring mechanisms are established for the two frequency bands to evaluate the energy transmission efficiency and data decoding success rate in real time.

[0092] The non-contact transmission device of the multi-pole coupling structure is constructed, and a thermal expansion synchronous compensation material is used in the annular additional unit of the transmission device, so that the expansion amount of the material under high temperature working condition changes synchronously with the body of the transmission device to maintain the gap stability of the magnetic coupling path; the contact transmission device with a multi-pole magnetic core structure is designed, and an additional unit with an annular structure is integrated on the periphery of the device. The expansion curve of the device body under high temperature is determined through material thermodynamics simulation, and a thermal expansion synchronous compensation material with a matching expansion coefficient is prepared according to the expansion curve. The compensation material is sintered by a metal-based composite material and ceramic particles in a specific proportion. The compensation material is embedded in the additional unit in a fan-shaped block manner, and each block of material is mechanically coupled with the device body through an elastic connecting piece. The compensation effect is verified in a high temperature test environment, so that when the temperature rises, the radial expansion amount of the compensation material can accurately offset the gap change of the magnetic coupling path caused by the expansion of the body.

[0093] A double-channel cooperative control mechanism is established based on the separated energy frequency band and data frequency band, the transmission frequency point of the energy carrier is dynamically adjusted to form an avoidance interval with the drill string rotation vibration frequency, and the anti-interference coding sequence is used to perform real-time waveform reconstruction on the data signal; a communication protocol stack of the double-channel cooperative control mechanism is established, and independent bandwidth resource management modules are allocated to the energy channel and the data channel. The rotation vibration frequency of the drill string is monitored in real time by a vibration sensor, the center frequency point of the energy carrier is dynamically adjusted by using the frequency shift keying technology, so that the center frequency point always maintains a safe interval with the vibration characteristic frequency. An adaptive equalizer is deployed in the data channel, and the pilot signal embedded in the anti-interference coding sequence is used to reconstruct the signal waveform distorted by the rotation vibration. A cross-channel coordination strategy is designed, and when the energy transmission needs to temporarily increase the bandwidth, the redundant resources of the data channel are automatically called to supplement.

[0094] A frequency division coupling module is configured in the double-channel cooperative control mechanism, the frequency division coupling module dynamically allocates the frequency band coverage of energy and data according to the phase fluctuation of the high-frequency pulse signal, so that the energy transmission power improvement and the data anti-interference ability enhancement form a complementary relationship in the frequency domain space; the frequency division coupling module is integrated in the control system, and the module includes a digital down converter and a programmable bandpass filter array. The phase detection circuit is used to track the phase jitter of the high-frequency pulse signal in real time, and when abnormal fluctuation is detected, the cutoff frequency of the filter group is dynamically adjusted to re-allocate the frequency band coverage of the two channels. A frequency domain resource optimization algorithm is established, so that the energy channel can improve the transmission power when obtaining additional frequency bands, and the data channel can maintain the original information amount through compression encoding. A hysteresis interval of frequency band switching is set to avoid system instability caused by frequent switching.

[0095] The thermal expansion synchronous compensation material works with the frequency division coupling module to offset the influence of magnetic coupling path deformation caused by high temperature environment on frequency band isolation precision, eliminate signal intermodulation interference caused by rotation vibration through the superposition of avoidance interval and anti-interference coding, and finally realize the synchronous optimization of energy transmission efficiency and data fidelity under full rotation working condition. A linkage mechanism is established between the deformation amount of the thermal expansion synchronous compensation material and the parameter adjustment of the frequency division coupling module. When the temperature sensor detects temperature changes in working condition, the material deformation and frequency band reconfiguration process are triggered synchronously. The parameters of the magnetic coupling path after high temperature deformation are verified through electromagnetic field simulation, and the transmission power of the energy carrier and the modulation depth of the data signal are adjusted accordingly. Then, the avoidance interval strategy and the demodulation algorithm of the anti-interference coding are optimized, and the remaining intermodulation interference components are eliminated at the signal processing level. Closed-loop testing is carried out within the full rotation speed range to ensure that the energy transmission efficiency fluctuation does not exceed 5% and the data bit error rate is always below 0.001%.

[0096] A non-contact transmission device with a multi-pole coupling structure is constructed. A thermal expansion synchronous compensation material is used in the ring-shaped additional unit of the transmission device, so that the expansion amount of the material under high temperature working condition changes synchronously with the body of the transmission device to maintain the gap stability of the magnetic coupling path. The component ratio of the thermal expansion synchronous compensation material is selected according to the thermal expansion coefficient of the body of the transmission device, to ensure that the expansion rate of the material under high temperature working condition is consistent with the expansion rate of the body of the transmission device. A thermal mechanical analyzer is used to measure the linear expansion coefficient curve of the body of the transmission device in the interval of 20-300℃, and the expansion rate at key temperature points is recorded. Thermal expansion synchronous compensation material samples with different ratios are prepared by powder metallurgy process, and their thermal expansion performance is tested and matched with the body data. The component ratio with the most consistent expansion trajectory is selected as the basic formula, and nano zirconium oxide particles are added to adjust the high temperature stability of the material. The optimized material is made into a sheet sample to verify its performance degradation characteristics under cyclic thermal shock.

[0097] The actual expansion amount of the thermal expansion synchronous compensation material is tested in a high temperature simulation environment. The expansion difference between the body of the transmission device and the compensation material is compared synchronously, and the density distribution of the compensation material is adjusted. A programmable high temperature test chamber is built to simulate the temperature gradient change environment of the transmission device during downhole operation. A laser displacement sensor is used to synchronously monitor the three-dimensional deformation amount of the body of the transmission device and the compensation material during the heating process, and the time sequence difference of the expansion amounts of the two is recorded. Through finite element analysis, the areas with poor compensation effect are found out, and the material porosity of these areas is adjusted by gradient density pressing process. The improved compensation material is cross-verified to ensure that the expansion synchronous error of the material does not exceed 0.05mm at the maximum working temperature.

[0098] The adjusted compensation material is matched with the dynamic expansion amount data of the transmission device body to generate synchronous expansion parameters of the compensation material and the transmission device body; a dynamic database containing a three-dimensional relationship of temperature-expansion amount-time is established to store the deformation trajectories of the transmission device body and the compensation material under different temperature rise rates. Time series alignment algorithm is used to process the two sets of expansion data, calculate the expansion amount difference at each temperature point, and generate a compensation correction coefficient matrix. A mathematical model of the synchronous expansion parameters is established by polynomial fitting, which can predict the required compensation amount according to the real-time temperature. The model parameters are burned into the control unit of the transmission device to provide a calculation reference for real-time compensation.

[0099] The synchronous expansion parameters are mapped to the structural design of the annular additional unit, so that the deformation path of the compensation material through the annular additional unit is synchronized with the expansion direction of the transmission device body when the compensation material expands at high temperature; based on the output results of the synchronous expansion parameter model, the mechanical structure of the annular additional unit is redesigned, and a spiral guide groove with a specific angle is processed on the inner wall of the unit. The compensation material block is installed on the guide groove slider, so that it can move along the predetermined path when it expands under heat. The inclination angle parameter of the guide groove is optimized through thermal-structural coupling simulation to ensure that the expansion direction of the material and the radial expansion of the device body form a vector superposition. A limiting ring is installed on the outer circle of the additional unit to prevent over-displacement of the compensation material under extreme working conditions.

[0100] The deformation amplitude of the compensation material is dynamically adjusted through real-time monitoring data of the gap in the magnetic coupling path to maintain the gap stability within the preset threshold range during the high-temperature expansion process. An eddy current gap sensor is arranged at a key position of the magnetic coupling path to monitor the air gap change between the primary and secondary coils in real time. A transfer function of the gap change amount and the compensation material deformation amount is established, and when the gap deviation is detected, the pre-tightening force of the compensation block is dynamically adjusted through a piezoelectric micro-displacement mechanism. Multiple protection thresholds are set: when the gap fluctuation exceeds the warning value, frequency compensation is started, and when the critical value is exceeded, system load reduction protection is triggered. The gap stability data is associated with temperature, speed and other parameters for analysis, and the performance parameter library of the compensation material is continuously optimized.

[0101] In the dual-channel cooperative control mechanism, a frequency division coupling module is configured. The frequency division coupling module dynamically allocates the frequency band coverage of energy and data according to the phase fluctuation of the high-frequency pulse signal, so that the power of energy transmission is improved and the anti-interference ability of data is enhanced, and a complementary relationship is formed in the frequency domain space. The change amplitude and duration of the phase fluctuation in the high-frequency pulse signal are monitored in real time, and a frequency band isolation parameter is generated according to the distribution ratio of the phase fluctuation in the energy band and the data band. A high-speed phase detection circuit is deployed in the signal processing unit to capture the instantaneous phase value of the high-frequency pulse signal in real time, and the change amplitude and duration of the phase fluctuation are calculated by a sliding window statistical method. A spectrum analyzer is used to perform fast Fourier transform on the signal, and the energy proportion of the phase fluctuation in the energy band and the data band is counted respectively to generate a distribution histogram reflecting the interference intensity of each frequency band. The frequency band isolation parameter is designed based on the interference distribution ratio, which includes key indicators such as energy band recommended offset and data band recommended bandwidth. Finally, dynamic weight coefficients are configured for the parameters to give higher decision weight to recent interference data, ensuring the timeliness of the generated parameters.

[0102] The frequency band isolation parameter is input into the frequency band allocation logic of the frequency division coupling module to adjust the center position of the energy transmission frequency band and the bandwidth range of the data frequency band, so that the energy band avoids the high-interference area of the phase fluctuation; and the interference distribution characteristics in the frequency band isolation parameter are analyzed, and when it is detected that the energy band has continuous high-frequency interference, the frequency band reallocation process of the frequency division coupling module is triggered. The gradient descent algorithm is implanted in the frequency band allocation logic of the module to automatically calculate the optimal center frequency of the energy band, so that it is at least twice the frequency width away from the concentrated area of the phase fluctuation. The bandwidth range of the data frequency band is adjusted synchronously, and the raised cosine roll-off filter is used to optimize its spectral utilization rate to ensure that the bandwidth change will not lose the effective data rate. Finally, the improvement of the signal-to-noise ratio before and after adjustment is recorded to verify the effectiveness of the allocation strategy.

[0103] A complementary relationship in the frequency domain space is generated according to the adjustment amplitude of the energy transmission frequency band and the bandwidth change of the data frequency band, wherein the power improvement amplitude of the energy band and the anti-interference enhancement amplitude of the data band are positively correlated; a quantitative relationship model between the power gain of the energy transmission frequency band and the signal-to-noise ratio improvement of the data frequency band is established, and the positive correlation between the two is confirmed by correlation coefficient analysis. The complementary relationship generation algorithm of the frequency domain space is designed: when the center frequency of the energy band is adjusted, the corresponding data band bandwidth compensation is automatically calculated to maintain the total spectral efficiency of the system unchanged. Then, a load balancing mechanism is introduced, and when the power improvement amplitude exceeds the threshold, additional error correction coding resources are allocated to the data band to enhance the anti-interference ability. The implementation effect of the complementary relationship is verified through real-time spectrum monitoring to ensure that no new inter-band crosstalk is generated.

[0104] The dynamic allocation function of the frequency division coupling module maps the complementary relationship to the frequency band coverage of energy and data, enabling the coverage width of the energy frequency band to dynamically contract or expand with the phase fluctuation amplitude, while the coverage width of the data frequency band changes inversely; after receiving the complementary relationship parameters, the frequency division coupling module starts the dynamic spectrum allocation engine, which includes a digital upconverter and a programmable bandpass filter group. According to the real-time monitored phase fluctuation amplitude, a fuzzy control algorithm is used to dynamically adjust the coverage width of the energy frequency band: when the fluctuation intensifies, the frequency width is appropriately contracted to ensure the quality of the core frequency point, and when the fluctuation decreases, the frequency width is expanded to improve the transmission capacity. The coverage width of the data frequency band is adjusted inversely, and the signal distortion caused by the change in bandwidth is compensated by digital pre-distortion technology. A frequency band allocation log is generated to record the environmental parameters and performance indicators at each adjustment.

[0105] The allocation logic of the frequency division coupling module is closed-loop corrected based on the real-time updated complementary relationship and frequency band coverage, enabling the energy transmission power and data anti-interference ability to continuously maintain a complementary state in the frequency domain space. A closed-loop monitoring system is established to continuously track the energy transmission efficiency and data bit error rate trends after the implementation of the complementary relationship. When the performance indicators deviate from the expected values, the logic correction process of the frequency division coupling module is triggered: the decision parameters of the frequency band allocation strategy are optimized through reinforcement learning algorithm. The core parameters such as frequency band switching threshold and bandwidth adjustment step in the update module are updated, enabling the system to respond faster to sudden interference. The optimized allocation logic is fixed in the hardware logic of the FPGA, ensuring that the dynamic balance of energy transmission power and data anti-interference ability can still be maintained under extreme working conditions.

[0106] The following describes this embodiment in combination with application scenarios:

[0107] In the process of high-speed rotation of the drill string in the full-rotation vertical drilling system, the high-frequency pulse signal output by the rotating transformer through the secondary end of the rotating coupling device is first separated into an energy carrier and a data modulation component, the energy transmission frequency band (used for driving the downhole instrument) and the data transmission frequency band (used for uploading the formation parameters) are completely decoupled by using the frequency band isolation technology, and an anti-interference coding sequence is embedded in the data signal to suppress the waveform distortion caused by the vibration of the drill string. To cope with the high-temperature environment in the well, the non-contact transmission device adopts a multi-pole coupling structure, the annular additional unit is filled with a thermal expansion synchronous compensation material, the composition ratio of the material is strictly matched with the thermal expansion coefficient of the body of the transmission device, and the expansion amount of the compensation material changes synchronously with the body of the transmission device under high-temperature working conditions, so that the gap stability of the magnetic coupling path is maintained, and the energy transmission efficiency is prevented from being reduced due to the difference in thermal expansion. In the double-channel cooperative control mechanism, the frequency division coupling module monitors the phase fluctuation of the high-frequency pulse signal in real time, dynamically adjusts the center position of the energy carrier frequency point to avoid the main interference frequency band of the drill string rotation vibration, expands the bandwidth range of the data frequency band, and reconstructs the signal waveform based on the anti-interference coding, so that the energy transmission power and the data anti-interference ability form a complementary optimization in the frequency domain space. The thermal expansion synchronous compensation material and the frequency division coupling module work cooperatively: the former offsets the influence of high-temperature expansion on the frequency band isolation precision through the deformation path of the annular additional unit, and the latter dynamically allocates the frequency band coverage of energy and data according to the phase fluctuation, finally eliminates the signal intermodulation interference caused by the rotation vibration through the avoidance interval and the superposition of the anti-interference coding, and realizes the synchronous improvement of the energy transmission efficiency and the data fidelity under the full-speed rotation condition of the drill string, ensuring the stable power supply of the downhole tool and the real-time and reliable transmission of the formation data.

[0108] For the method steps disclosed in the above embodiments, the method steps are described as a series of action combinations for the purpose of simple description, but those skilled in the art should know that the embodiments of the present application are not limited by the order of the described actions, because according to the embodiments of the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily necessary for the embodiments of the present application.

[0109] As shown in Figure 2 The present application also provides a rotating transformer non-contact energy and data double-channel transmission system, comprising:

[0110] The signal recognition and processing module 201 is configured to recognize the energy component and the data component in response to the high-frequency pulse signal, perform frequency band isolation processing on the energy component and the data component, separate the energy transmission frequency band and the data transmission frequency band, and embed a coding sequence in the frequency band isolation processing process to suppress transmission distortion;

[0111] The thermal compensation mechanism configuration module 202 is configured to change the expansion amount of the compensation structure synchronously with the main structure based on a thermal compensation mechanism, so as to maintain the gap stability of the transmission path.

[0112] The dual-channel control mechanism configuration module 203 is configured to establish a dual-channel control mechanism based on the energy transmission frequency band and the data transmission frequency band, adjust the transmission frequency point of the energy carrier in the energy transmission frequency band to avoid the interference frequency, and reconstruct the waveform of the data signal transmitted in the data transmission frequency band through the encoding sequence.

[0113] The frequency band allocation mechanism configuration module 204 is configured to configure a frequency band allocation mechanism, dynamically allocate the coverage of the energy transmission frequency band and the data transmission frequency band according to the signal phase fluctuation, so as to form a complementary relationship between the energy transmission performance and the data anti-interference ability in the frequency domain.

[0114] The cooperative optimization module 205 is configured to offset the influence of deformation on the frequency band isolation based on the cooperative action of the thermal compensation mechanism and the frequency band allocation mechanism, eliminate signal interference through frequency point avoidance and processing based on the encoding sequence, so as to optimize the energy transmission efficiency and the data fidelity.

[0115] It is worth noting that, although only some basic functional modules are disclosed in the embodiments of the present application, it does not mean that the composition of the system is limited to the above-mentioned basic functional modules. On the contrary, the meaning expressed by the embodiments is that one or more functional modules can be added by those skilled in the art on the basis of the above-mentioned basic functional modules in combination with the prior art, forming infinite embodiments or technical solutions. That is to say, the system is open rather than closed, and it cannot be considered that the protection scope of the claims of the present application is limited to the disclosed basic functional modules only because the embodiments disclose only individual basic functional modules. At the same time, for the convenience of description, the above-described devices are described as various units and modules. Of course, the functions of the units and modules can be realized in the same software and / or hardware in the implementation of the present application.

[0116] As shown in FIG. 1, Figure 3 The present application also provides an electronic device, which comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete mutual communication through the communication bus; the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method for contactless energy and data dual-channel transmission of a rotary transformer.

[0117] Figure 3 FIG. 1 is a structural schematic diagram of an electronic device according to an embodiment of the present application. As shown in FIG. 1, Figure 3As shown in the structure, the electronic device provided in the embodiment of the present application includes one or more processors 710 and a memory 720; the processor 710 in the electronic device can be one or more, Figure 3 The memory 720 is used for storing one or more programs; the one or more programs are executed by the one or more processors 710, so that the one or more processors 710 implement the method for contactless energy and data dual-channel transmission of a rotary transformer according to any one of the embodiments of the present application.

[0118] The electronic device can further include an input device 730 and an output device 740.

[0119] The processor 710, the memory 720, the input device 730 and the output device 740 in the electronic device can be connected through a bus or other means, Figure 3 For example, the connection through the bus is taken as an example.

[0120] The memory 720 in the electronic device can be used as a computer readable storage medium to store one or more programs, and the program can be a software program, a computer executable program and a module, such as the program instruction / module corresponding to the method for contactless energy and data dual-channel transmission of a rotary transformer provided in the embodiment of the present application. The processor 710 executes the software program, instruction and module stored in the memory 720, thereby performing various function applications and data processing of the electronic device, that is, implementing the method for contactless energy and data dual-channel transmission of a rotary transformer in the above method embodiment.

[0121] The memory 720 can include a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required by a function; the data storage area can store data created according to the use of the electronic device, etc. In addition, the memory 720 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state memory device. In some examples, the memory 720 can further include a memory remotely arranged relative to the processor 710, and these remote memories can be connected to the device through a network. Examples of the above network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network and a combination thereof.

[0122] The input device 730 can be used to receive input digital or character information, and generate key signal input related to the user settings and function control of the electronic device. The output device 740 can include a display device such as a display screen.

[0123] The application further provides a computer readable storage medium storing a computer program executable by an electronic device, which causes the electronic device to perform the steps of the method for contactless energy and data dual-channel transmission of a rotary transformer when the computer program is running on the electronic device.

[0124] In particular, the computer storage medium of the embodiments of the application can adopt any combination of one or more computer readable media. The computer readable medium can be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium may, for example, be but is not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or apparatus, or any combination of the above. More specific examples (non-exhaustive list) of the computer readable storage medium include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer readable storage medium can be any tangible medium containing or storing a program that can be used by or in connection with an instruction execution system, apparatus or device.

[0125] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A method for contactless energy and data dual channel transmission for a rotary transformer, characterized in that, The method comprises the following steps: In response to the high-frequency pulse signal, the energy component and the data component are identified, and the energy component and the data component are subjected to frequency band isolation processing to separate the energy transmission frequency band and the data transmission frequency band, and an encoding sequence is embedded in the frequency band isolation processing to suppress transmission distortion; Based on the thermal compensation mechanism, the expansion amount of the compensation structure changes synchronously with the main structure to maintain the gap stability of the transmission path; Based on the energy transmission frequency band and the data transmission frequency band, a dual-channel control mechanism is established to adjust the transmission frequency point of the energy carrier in the energy transmission frequency band to avoid interference frequency, and the data signal transmitted in the data transmission frequency band is subjected to waveform reconstruction through the encoding sequence; A frequency band allocation mechanism is configured to dynamically allocate the coverage of the energy transmission frequency band and the data transmission frequency band according to the signal phase fluctuation, so that the energy transmission performance and the data anti-interference ability form a complementary relationship in the frequency domain; Based on the synergistic effect of the thermal compensation mechanism and the frequency band allocation mechanism, the influence of deformation on frequency band isolation is offset, and signal interference is eliminated through frequency point avoidance and processing based on the encoding sequence to optimize energy transmission efficiency and data fidelity.

2. The method of claim 1, wherein, In response to the high-frequency pulse signal, the energy component and the data component are identified, and the energy component and the data component are subjected to frequency band isolation processing to separate the energy transmission frequency band and the data transmission frequency band, and an encoding sequence is embedded in the frequency band isolation processing to suppress transmission distortion, further comprising: Real-time capture of waveform information of high-frequency pulse signal, acquisition of time domain characteristics; The time domain characteristics are decomposed into frequency domain through transformation processing to obtain the corresponding frequency spectrum distribution; According to the frequency characteristic difference between energy and data, the energy transmission frequency band and the data transmission frequency band are physically isolated in the frequency domain to form two independent signal channels; Anti-interference coding based on a specific sequence is embedded in the data transmission channel, and error correction technology is used to ensure signal integrity.

3. The method of claim 1, wherein the method further comprises: Based on the thermal compensation mechanism, the expansion amount of the compensation structure changes synchronously with the main structure to maintain the gap stability of the transmission path, further comprising: Selecting the composition ratio of the compensation material to make the expansion behavior consistent with the main structure; Test the actual expansion amount of the compensation material in a high-temperature environment, adjust the physical distribution to match the main structure expansion; Generate the synchronous expansion parameters of the compensation material and the main structure; Based on the synchronous expansion parameters, design the deformation path of the compensation structure to make the compensation direction consistent with the change of the main structure.

4. The method of claim 1, wherein the method further comprises: Based on the energy transmission frequency band and the data transmission frequency band, a dual-channel control mechanism is established to adjust the transmission frequency point of the energy carrier in the energy transmission frequency band to avoid interference frequency, and the data signal transmitted in the data transmission frequency band is subjected to waveform reconstruction through the encoding sequence, further comprising: Independent bandwidth management strategies are configured for the energy transmission frequency band and the data transmission frequency band respectively, and corresponding frequency spectrum resources are allocated; Real-time monitoring of the vibration frequency characteristics of the external environment, dynamic tracking of the interference frequency band distribution; According to the interference frequency band distribution, the center transmission frequency point of the energy carrier in the energy transmission frequency band is adjusted to maintain a safe isolation interval; In the data transmission frequency band, the waveform reconstruction is performed based on the pilot or training sequence in the encoding sequence.

5. The method of claim 1, wherein the method further comprises: The frequency band allocation mechanism is configured to dynamically allocate the coverage of the energy transmission frequency band and the data transmission frequency band according to the phase fluctuation of the signal, so that the energy transmission performance and the data anti-interference capability form a complementary relationship in the frequency domain, and further includes: Monitoring the phase fluctuation of the high-frequency pulse signal to obtain quantization data of the fluctuation amplitude and duration; According to the distribution characteristics of the quantization data of the fluctuation amplitude and duration in the energy transmission frequency band and the data transmission frequency band, a set of isolation parameters for guiding frequency band allocation is generated; Based on the set of isolation parameters, the center frequency position of the energy transmission frequency band and the available bandwidth range of the data transmission frequency band are dynamically adjusted; A mathematical correlation model is established between the energy transmission power enhancement capability and the data anti-interference enhancement degree to form a complementary optimization relationship.

6. The method of claim 3, wherein the method further comprises: Based on the synergistic effect of the thermal compensation mechanism and the frequency band allocation mechanism, the influence of deformation on frequency band isolation is offset, and signal interference is eliminated through frequency point avoidance and processing based on the encoding sequence, to optimize the energy transmission efficiency and data fidelity, and further includes: A linkage adjustment mechanism is established between the deformation amount of the compensation material and the frequency band allocation parameters; Based on the compensated transmission path state, the energy emission intensity and the data modulation level are adjusted; The frequency point avoidance strategy and the anti-interference encoding processing algorithm are synergistically optimized to eliminate signal intermodulation interference.

7. The method of claim 3, wherein the method further comprises: Test the actual expansion amount of the compensation material in a high-temperature environment, adjust the physical distribution to match the expansion of the main structure, and further include: In the test environment, three-dimensional deformation data of the main structure and the compensation material during the heating process are synchronously collected; Analyze and record the time difference curve of the expansion amount of the main structure and the compensation material, and identify the under-compensation area by calculation; Based on the under-compensation area, the porosity and density distribution of the compensation material are adjusted by using the density adjustment process, so that the expansion synchronization error between the compensation material and the main structure is controlled within a predetermined threshold.

8. A non-contact energy and data dual channel transmission system for a rotary transformer, characterized by, It includes: The signal recognition and processing module is configured to identify the energy component and the data component in response to the high-frequency pulse signal, perform frequency band isolation processing on the energy component and the data component, separate the energy transmission frequency band and the data transmission frequency band, and embed the encoding sequence in the frequency band isolation processing process to suppress transmission distortion; The thermal compensation mechanism configuration module is configured to make the expansion amount of the compensation structure change synchronously with the main structure based on the thermal compensation mechanism to maintain the gap stability of the transmission path; The dual-channel control mechanism configuration module is configured to establish a dual-channel control mechanism based on the energy transmission frequency band and the data transmission frequency band, adjust the transmission frequency point of the energy carrier in the energy transmission frequency band to avoid interference frequency, and reconstruct the waveform of the data signal transmitted in the data transmission frequency band through the encoding sequence; The frequency band allocation mechanism configuration module is configured to configure a frequency band allocation mechanism, dynamically allocate the coverage of the energy transmission frequency band and the data transmission frequency band according to the phase fluctuation of the signal, so that the energy transmission performance and the data anti-interference capability form a complementary relationship in the frequency domain. The synergistic optimization module is configured to offset the influence of deformation on frequency band isolation based on the synergy of the thermal compensation mechanism and the frequency band allocation mechanism, and eliminate signal interference through frequency point avoidance and processing based on the encoding sequence, so as to optimize energy transmission efficiency and data fidelity.

9. An electronic device, comprising: The method comprises the steps of: A processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus; the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer program stored in the memory can be executed by the electronic device, and when the computer program runs on the electronic device, the electronic device executes the steps of the method in any one of claims 1 to 7.

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