Non-contact energy and data dual-channel transmission method for rotary transformer

Abstract

The invention 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 an energy component and a data component of a high-frequency pulse signal, separating an energy transmission frequency band from a data transmission frequency band, and embedding a coding sequence; based on a thermal compensation mechanism, the expansion amount of the compensation structure and the main structure change synchronously; establishing a dual-channel control mechanism based on the energy transmission frequency band and the data transmission frequency band to avoid interference frequency and perform waveform reconstruction; configuring a frequency band distribution mechanism to enable the energy transmission performance and the data anti-interference capability to form a complementary relationship in a frequency domain; based on the synergistic effect of a thermal compensation mechanism and the frequency band distribution mechanism, the influence of deformation on frequency band isolation is counteracted, and signal interference is eliminated through frequency point avoidance and processing based on the coding sequence, so that the energy transmission efficiency and the data fidelity are optimized. According to the invention, the data transmission reliability can be improved under extreme working conditions.

Description

Technical Field

[0001] This invention belongs to the field of data transmission technology, and in particular relates to a non-contact dual-channel energy and data transmission method using a rotary transformer. Background Technology

[0002] In the continuous rotation operation of downhole tools in a fully rotating vertical drilling system, a core technical challenge needs to be addressed: how to reliably and stably achieve energy supply and high-speed bidirectional data transmission between the rotating components and the fixed base under complex conditions where the drill string is rotating at high speed and simultaneously subjected to extreme high temperature and high pressure downhole.

[0003] In existing technologies, although the contact slip ring solution has a simple structure, it has inherent problems such as physical wear, easy generation of electric sparks, and the need for complex sealing structures. Under long-term high-speed rotation and harsh downhole environments, its reliability and lifespan are difficult to guarantee, resulting in significant maintenance costs and safety risks.

[0004] Non-contact transmission technologies, such as magnetically coupled rotary transformers, offer a potential solution to these problems. However, this technology typically requires high power for energy transmission, and the strong magnetic field it generates can severely couple and interfere with weak data signals at the microvolt level, leading to distortion or loss of measurement parameters (such as well inclination angle and formation resistivity). The high-temperature environment downhole can cause thermal expansion and deformation of the transmission device, altering the magnetic coupling air gap between the primary and secondary coils, resulting in decreased transmission efficiency and signal attenuation. Axial vibration and radial yaw generated during drill string operation introduce strong mechanical vibration interference, causing phase fluctuations and intermodulation distortion in the signal, severely compromising the real-time performance and integrity of data transmission.

[0005] Existing technologies typically employ simple frequency separation or shielding measures to attempt to address interference issues, but these often struggle to dynamically adapt to drastic changes in operating conditions and fail to achieve precise, adaptive isolation and coordination of energy and data transmission in the frequency domain. This results in a significant degradation of overall performance under extreme operating conditions.

[0006] Therefore, this application provides a non-contact dual-channel energy and data transmission method for rotary transformers to solve the above-mentioned technical problems. Summary of the Invention

[0007] The purpose of this invention is to provide a non-contact dual-channel energy and data transmission method for rotary transformers, in order to solve the technical problem of poor data transmission reliability under extreme operating conditions in the prior art.

[0008] To address the aforementioned technical problems, this invention provides a non-contact dual-channel energy and data transmission method for rotary transformers, comprising: In response to the high-frequency pulse signal, the energy component and data component are identified, and frequency band isolation processing is performed on the energy component and data component to separate the energy transmission frequency band and the data transmission frequency band. During the frequency band isolation process, a coding sequence is embedded to suppress transmission distortion. Based on the thermal compensation mechanism, the expansion of the compensation structure changes synchronously with the main structure to maintain the gap stability of the transmission path. A dual-channel control mechanism is established based on the energy transmission frequency band and the data transmission frequency band. The transmission frequency of the energy carrier in the energy transmission frequency band is adjusted to avoid interference frequencies. The waveform of the data signal transmitted in the data transmission frequency band is reconstructed through the coding sequence. Configure a frequency band allocation mechanism 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 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, the impact of deformation on frequency band isolation is offset, and signal interference is eliminated through frequency point avoidance and processing based on the coding sequence, so as to optimize energy transmission efficiency and data fidelity.

[0009] In some specific embodiments, in response to identifying energy and data components from a high-frequency pulse signal, frequency band isolation processing is performed on the energy and data components to separate the energy transmission frequency band and the data transmission frequency band. Furthermore, a coding sequence is embedded during the frequency band isolation process to suppress transmission distortion. Real-time capture of waveform information of high-frequency pulse signals to obtain time-domain characteristics; The time-domain features are decomposed into the frequency domain through transformation processing to obtain the corresponding spectral distribution; Based on the difference in frequency characteristics 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 codes based on specific sequences are embedded in the data transmission channel, and error correction techniques are used to ensure signal integrity.

[0010] In some specific embodiments, based on a thermal compensation mechanism, the expansion of the compensation structure changes synchronously with the main structure to maintain the gap stability of the transmission path, further including: Select the composition ratio of the compensation material to make the expansion behavior consistent with the main structure; Test the actual expansion of the compensation material in a high-temperature environment and adjust the physical distribution to match the expansion of the main structure; Generate synchronous expansion parameters for the compensation material and the main structure; The deformation path of the compensation structure is designed based on the synchronous expansion parameters to ensure that the compensation direction is consistent with the change of the main structure.

[0011] In some specific embodiments, a dual-channel control mechanism is established based on the energy transmission frequency band and the data transmission frequency band. The transmission frequency of the energy carrier in the energy transmission frequency band is adjusted to avoid interference frequencies. The waveform of the data signal transmitted in the data transmission frequency band is reconstructed using the coding sequence. Further, the mechanism includes: Configure independent bandwidth management strategies for energy transmission frequency bands and data transmission frequency bands, and allocate corresponding spectrum resources accordingly; Real-time monitoring of the vibration frequency characteristics of the external environment and dynamic tracking of the distribution of interference frequency bands; Based on the distribution of interference frequency bands, adjust the center transmission frequency of the energy carrier in the energy transmission frequency band to maintain a safe isolation interval; In the data transmission frequency band, waveform reconstruction is performed based on the pilot or training sequence in the coded sequence.

[0012] In some specific embodiments, 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 data anti-interference capability form a complementary relationship in the frequency domain, further including: Monitor the phase fluctuations of high-frequency pulse signals and obtain quantitative data on the amplitude and duration of the fluctuations; Based on the distribution characteristics of the quantified data of the fluctuation amplitude and duration in the energy transmission frequency band and the data transmission frequency band, a set of isolation parameters is generated to guide frequency band allocation; 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. Establish a mathematical correlation model between the power transmission capability and the data anti-interference enhancement level to form a complementary optimization relationship.

[0013] In some specific embodiments, based on the synergistic effect of the thermal compensation mechanism and the frequency band allocation mechanism, the impact of deformation on frequency band isolation is offset, and signal interference is eliminated through frequency point avoidance and processing based on the coded sequence to optimize energy transmission efficiency and data fidelity, further including: Establish a linkage adjustment mechanism between the deformation of compensation materials and frequency band allocation parameters; Based on the compensated transmission path state, adjust the energy emission intensity and data modulation level; Collaborative optimization of frequency avoidance strategies and anti-interference coding processing algorithms is used to eliminate signal intermodulation interference.

[0014] In some specific embodiments, testing the actual expansion of the compensation material in a high-temperature environment and adjusting its physical distribution to match the expansion of the main structure further includes: In the experimental environment, three-dimensional deformation data of the main structure and compensation material during the heating process were collected simultaneously; Analyze and record the time-series difference curves of the expansion amounts of the main structure and the compensation material, and identify the areas of insufficient compensation through calculation. Based on the insufficient compensation area, a density adjustment process is used to adjust the porosity and density distribution of the compensation material so that the expansion synchronization error between the compensation material and the main structure is controlled within a predetermined threshold.

[0015] Based on the same concept, the present invention also provides a contactless dual-channel energy and data transmission system for rotary transformers, comprising: The 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 the energy transmission frequency band and the data transmission frequency band, and embed a coding sequence during the frequency band isolation process to suppress transmission distortion. The thermal compensation mechanism configuration module is configured to be based on the thermal compensation mechanism, so that the expansion of the compensation structure changes synchronously with the main structure 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 frequencies, and reconstruct the waveform of the data signal transmitted in the data transmission frequency band through the coding sequence. The frequency band allocation mechanism configuration module is configured to configure a frequency band allocation mechanism that dynamically allocates 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 data anti-interference capability form a complementary relationship in the frequency domain. The collaborative optimization module is configured to counteract the impact of deformation on frequency band isolation based on the synergistic effect of the thermal compensation mechanism and the frequency band allocation mechanism, and to eliminate signal interference through frequency point avoidance and processing based on the coding sequence, so as to optimize energy transmission efficiency and data fidelity.

[0016] Based on the same concept, the present invention also provides an electronic device, including: 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 performs the steps of a rotary transformer non-contact dual-channel energy and data transmission method.

[0017] Based on the same concept, the present invention also provides a computer-readable storage medium storing a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of a rotary transformer contactless dual-channel energy and data transmission method.

[0018] Compared with existing technologies, its advantages are as follows: This invention discloses a non-contact dual-channel energy and data transmission method for rotary transformers, which realizes reliable isolated transmission of energy and data, effectively overcomes performance degradation under high-temperature conditions, and improves the ability to resist vibration interference. Attached Figure Description

[0019] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a flowchart illustrating some specific embodiments of the non-contact dual-channel energy and data transmission method for a rotary transformer according to the present invention; Figure 2 This is a schematic diagram of the structure of a non-contact dual-channel energy and data transmission system for a rotary transformer according to some specific embodiments of the present invention; Figure 3 This is a schematic diagram of the structure of an electronic device according to some specific embodiments of the present invention.

[0020] In the diagram, 710 is the processor; 720 is the memory; 730 is the input device; and 740 is the output device. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0023] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0024] It should be understood that although the terms first, second, third, etc., may be used in the embodiments of this application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, first may also be referred to as second without departing from the scope of the embodiments of this application, and similarly, second may also be referred to as first.

[0025] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0026] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0027] It should be noted that any symbols and / or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.

[0028] Reference Figure 1 A method for non-contact dual-channel energy and data transmission via a rotary transformer, comprising: S101, in response to the high-frequency pulse signal, identify the energy component and the data component, 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 during the frequency band isolation process to suppress transmission distortion; S102, based on the thermal compensation mechanism, makes the expansion of the compensation structure change synchronously with the main structure in order to maintain the gap stability of the transmission path. S103, 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, and the waveform of the data signal transmitted in the data transmission frequency band is reconstructed by the coding sequence; S104, Configure a frequency band allocation mechanism 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 data anti-interference capability form a complementary relationship in the frequency domain; S105, 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, so as to optimize energy transmission efficiency and data fidelity.

[0029] Specifically, in response to the high-frequency pulse signal generated at the secondary end of the rotary transformer's rotary coupling device, the waveform of this signal is captured by high-speed sampling, thereby identifying the energy carrier component and data modulation component contained within it. A fast Fourier transform is used to decompose the signal into the frequency domain, and a digital bandpass filter bank is used to physically isolate the energy transmission frequency band and the data transmission frequency band, forming independent signal channels. Simultaneously, anti-interference coding based on pseudo-random sequences is embedded in the signal processing flow of the data channel, and a forward error correction mechanism is introduced to suppress waveform distortion caused by transmission path distortion. To address the impact of high-temperature environments on magnetic coupling stability, a thermal compensation mechanism is used. The expansion characteristics of the transmission device body at high temperatures are determined through material thermodynamic simulation. Based on this, a composite material with a matching coefficient of thermal expansion is selected as the compensation structure, ensuring that its expansion under high-temperature conditions is synchronized with that of the transmission device body, thus maintaining the stability of the air gap in the magnetic coupling path. This compensation structure is mechanically coupled in a block-like manner within the annular additional unit, and its thermal expansion behavior offsets the effect of body deformation on the gap. In the dual-channel control mechanism, independent bandwidth resource management strategies are allocated to the separated energy and data frequency bands. Vibration sensors monitor the drill string rotation vibration frequency in real time. Frequency shift keying (FSK) technology dynamically adjusts the center frequency of the energy carrier within the energy transmission band to avoid frequency bands with concentrated vibration interference. Simultaneously, within the data transmission band, pilot signals embedded in anti-interference codes are used in conjunction with an adaptive equalizer to reconstruct and restore the waveform of the data signal distorted by vibration interference. A frequency division coupling mechanism is configured, using a phase detection circuit to monitor the phase fluctuation amplitude and duration of high-frequency pulse signals in real time. Based on the distribution characteristics of these signals within the energy and data bands, frequency band isolation parameters are generated, dynamically adjusting the center frequency position of the energy transmission band and the bandwidth range of the data transmission band. This establishes a quantitative complementary relationship between energy transmission power enhancement and data anti-interference enhancement. A programmable filter array is used to achieve real-time mapping and allocation of frequency band coverage. By leveraging the synergistic effect of thermal compensation and frequency division coupling mechanisms, a linkage response relationship between deformation and frequency band parameters is constructed. When the temperature changes, material deformation and frequency band reconfiguration are triggered synchronously. Based on electromagnetic field simulation, the magnetic coupling path parameters after deformation are verified, and the energy transmission power and data modulation depth are finely adjusted. At the same time, the frequency avoidance strategy and anti-interference coding demodulation algorithm are jointly optimized to eliminate intermodulation interference components at the signal processing level, thereby achieving synchronous optimization of energy transmission efficiency and data fidelity across the entire operating range.

[0030] For example, in the application scenario of a fully rotating vertical drilling system, the high-frequency pulse signal output from the secondary end of the rotary transformer is sampled at a sampling frequency of 10MHz. The energy carrier is identified as concentrated around 1.2MHz, while the data modulation components are distributed in the 2.5MHz band. The two frequency bands are isolated using FFT transformation and a set of digital bandpass filters with center frequencies of 1.2MHz and 2.5MHz, each with a bandwidth of 200kHz. A Gold sequence of order 9 is embedded in the data band as an anti-interference code, and Reed-Solomon coding is used as the forward error correction scheme. For high-temperature operating conditions, the transmission device body is made of Invar alloy material, whose coefficient of thermal expansion has been measured to be 1.2 × 10⁻⁶. -6 / ℃, and the compensation structure is made of copper-ceramic composite material sintered in a specific ratio, with its coefficient of thermal expansion adjusted to 1.25×10. -6 / ℃, during the temperature rise from 20℃ to 300℃, the difference in expansion between the two does not exceed 0.05mm, thus maintaining the air gap stable near the design value of 0.5mm. In dual-channel control, the vibration sensor detects that the main frequency of drill string vibration is 85 Hz. Based on this, the center frequency of the energy carrier is dynamically shifted from 1.2MHz to 1.215MHz to avoid vibration harmonic interference. At the data receiving end, the distorted waveform is reconstructed using the pilot band in the Gold sequence through the LMS adaptive equalization algorithm, with a convergence step size set to 0.01. The frequency division coupling module detects that the signal phase fluctuation amplitude exceeds 15 degrees and lasts for 5 milliseconds, determining that the energy band is disturbed. Subsequently, the center frequency of the energy band is adjusted to 1.21MHz, while the bandwidth of the data band is compressed from 200kHz to 180kHz. Based on the pre-stored complementary relationship model, it is calculated that the energy transmission power can be increased by 3% while the data error rate can still be maintained below 0.001%.

[0031] In some applications, in response to high-frequency pulse signals, energy and data components are identified, and frequency band isolation processing is performed on the energy and data components to separate the energy transmission frequency band and the data transmission frequency band. During the frequency band isolation process, a coding sequence is embedded to suppress transmission distortion. This includes real-time capture of the waveform information of the high-frequency pulse signal to obtain time-domain features; decomposing the time-domain features into the frequency domain through transformation processing to obtain the corresponding spectral distribution; and physically isolating the energy transmission frequency band and the data transmission frequency band in the frequency domain based on the differences in frequency characteristics of energy and data, forming two independent signal channels. Anti-interference coding based on a specific sequence is embedded in the data transmission channel, and error correction techniques are used to ensure signal integrity.

[0032] Understandably, the waveform information of high-frequency pulse signals is captured in real time to obtain their time-domain characteristics, including amplitude, period, and rise and fall times. These time-domain characteristic signals are then decomposed into the frequency domain using a Fast Fourier Transform (FFT) to obtain a spectral distribution containing amplitude and phase information for each frequency component. Based on the frequency characteristic difference that energy signals are typically concentrated in low-frequency bands while data signals are modulated in higher-frequency bands, a digital filter bank is used to physically isolate the energy transmission frequency band and the data transmission frequency band in the frequency domain, forming two independent signal channels with non-overlapping spectra. A specific sequence based on pseudo-random characteristics is embedded in the modulation or encoding stage of the data transmission channel as an anti-interference code, and forward error correction coding technology with error correction capabilities is used to process the signal, ensuring that complete and error-free data information can still be recovered even when distortion occurs in the transmission path.

[0033] For example, a high-frequency pulse signal from a resolver, with a voltage amplitude of 5V and a pulse width of 0.1 microseconds, is captured in real time. The waveform's time-domain characteristics are obtained using an ADC with a sampling rate of 100MSPS. A Fast Fourier Transform (FFT) is performed on the signal with 1024 points to obtain its spectral distribution, showing that the energy component is mainly concentrated in the 0.8MHz to 1.2MHz band, while the data component is distributed in the 2.0MHz to 2.4MHz band. Based on this 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 with a bandwidth of 400kHz, and the center frequency of the data channel filter is set to 2.2MHz with a bandwidth of 400kHz, forming two independent channels with an isolation greater than 60dB. In the data channel, a Gold sequence with a period of 1023 is embedded as an anti-interference code, and Reed-Solomon (255,223) coding is used as a forward error correction technique, which can correct errors up to 16 bytes.

[0034] In some applications, a thermal compensation mechanism is used to synchronize the expansion of the compensation structure with that of the main structure in order to maintain the gap stability of the transmission path. This includes selecting the composition ratio of the compensation material to make the expansion behavior consistent with the main structure; testing the actual expansion of the compensation material in a high-temperature environment and adjusting the physical distribution to match the expansion of the main structure; generating synchronous expansion parameters of the compensation material and the main structure; and designing the deformation path of the compensation structure based on the synchronous expansion parameters to ensure that the compensation direction is consistent with the change of the main structure.

[0035] Understandably, based on the chemical composition and thermodynamic properties of the main structural material, the matrix and reinforcing phase compositions and their ratios of the compensation material are selected. Through powder metallurgy or composite preparation processes, its macroscopic thermal expansion behavior is made consistent with that of the main structure within the target temperature range. Subsequently, the prepared compensation material samples and the main structural samples are placed in a simulated high-temperature environment for synchronous thermal expansion tests. The actual expansion data at different temperature points are obtained. By analyzing the expansion difference and combining it with finite element simulation, regions of insufficient or over-compensation are identified. Then, gradient density pressing, local porosity adjustment, or functionally graded material preparation processes are used to optimize its physical distribution. To match the expansion process of the main structure, a set of synchronous expansion parameters for the compensation material and the main structure at different temperatures and heating rates is generated using mathematical fitting methods based on optimized test data. This parameter set fully describes the mapping relationship between their deformations. Finally, based on this synchronous expansion parameter set, a specific deformation path is given to the compensation structure through mechanical structure design, such as designing a spiral groove or flexible hinge mechanism with a specific guiding angle, so that the compensation structure can generate displacement along a predetermined direction when it is heated and expanded, ensuring that its compensation displacement vector is always consistent with the thermal deformation direction of the main structure, thereby dynamically offsetting the influence of its deformation on the transmission path gap.

[0036] For example, the main structure of the transmission device is made of Invar alloy, whose average coefficient of linear expansion, as determined by a thermomechanical analyzer, is 1.2 × 10⁻⁶. -6 / ℃. A copper-based composite material was selected as the compensation material, and the average linear expansion coefficient was matched to 1.25 × 10⁻⁶ by adjusting the silicon carbide particle content to 35 vol%. -6 / ℃. Both samples were placed in a programmable high-temperature test chamber and heated from 20℃ to 300℃ at a rate of 5℃ / min, with the length change measured synchronously using a laser displacement sensor. The test results showed that the main structure expanded by 0.36 mm at 300℃, while the initial expansion of the compensation material was 0.38 mm, a deviation of 0.02 mm. Finite element analysis revealed that the density of the compensation material's edge region was low. Subsequently, a cold isostatic pressing process was used to locally densify its edges under a pressure of 150 MPa. After treatment, the expansion at 300℃ was measured again, showing 0.362 mm, reducing the deviation from the main structure to 0.002 mm. Based on this data, a synchronous expansion parameter was generated through linear regression, with the mathematical expression ΔL_comp = 1.008 × ΔL_main + 0.001 (ΔL is in mm). Based on these parameters, the mounting base of the compensation structure was designed as a spiral guide groove with an inward inclination of 15 degrees. This allows the compensation material block to generate a radially outward displacement component when it expands due to heat. This component is opposite in direction to the radial expansion of the main structure and proportional in magnitude. Final verification showed that, under full operating conditions at 300℃, the variation in the magnetic coupling air gap was stably controlled within ±0.01mm, which is superior to the ±0.1mm fluctuation before compensation.

[0037] 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 of the energy carrier in the energy transmission frequency band is adjusted to avoid interference frequencies. The waveform of the data signal transmitted in the data transmission frequency band is reconstructed using the encoded sequence. This includes configuring independent bandwidth management strategies for the energy transmission frequency band and the data transmission frequency band respectively, allocating corresponding spectrum resources; monitoring the vibration frequency characteristics of the external environment in real time and dynamically tracking the distribution of interference frequency bands; adjusting the center transmission frequency of the energy carrier in the energy transmission frequency band according to the distribution of interference frequency bands to maintain a safe isolation interval; and reconstructing the waveform based on the pilot or training sequence in the encoded sequence in the data transmission frequency band.

[0038] Understandably, independent bandwidth management strategies are configured for the energy transmission band and the data transmission band respectively. A resource allocation algorithm allocates continuous spectrum resources to the energy channel with transmission efficiency as the core optimization objective, while discrete spectrum resources are allocated to the data channel with anti-interference and bit error rate as the core optimization objectives. The vibration frequency characteristics of the external environment are monitored in real time. Time-domain data of vibration signals are collected using accelerometers and converted to frequency-domain spectra using Fast Fourier Transform. Peak detection and tracking algorithms are used to dynamically track the distribution and amplitude changes of interference frequency bands concentrated in the vibration energy. Based on the real-time acquisition of interference frequency band distribution information, the center transmission frequency of the energy carrier in the energy transmission band is dynamically adjusted based on the frequency shift keying principle, ensuring that its frequency value maintains a pre-set safe isolation interval from the identified main interference frequencies. In the data transmission band, known pilot signals or training sequences contained in the previously embedded coded sequences are used. An adaptive equalizer calculates the channel transmission characteristics, and a minimum mean square error or recursive least squares algorithm is used to reconstruct and restore the waveform of the received signal distorted by multipath effects, frequency-selective fading, or external interference, thereby improving the demodulation reliability of the data.

[0039] For example, a fixed 80% of the total bandwidth is allocated to the energy transmission band (1.0MHz ± 0.2MHz) to optimize transmission power; a dynamic 20% bandwidth is allocated to the data transmission band (2.2MHz ± 0.2MHz), with 10% redundant bandwidth reserved for anti-interference. Vibration is monitored using a triaxial accelerometer (sampling rate 1kHz) mounted on the drill string. FFT analysis revealed a dominant vibration frequency of 85Hz and its second harmonic at 175Hz. Based on this, the center frequency of the energy carrier is dynamically increased from 1.0MHz to 1.05MHz to ensure sufficient safety isolation (greater than 50 times the bandwidth) with the 175Hz harmonic frequency in the frequency domain. At the data receiver, every 100th symbol embedded in the Gold sequence is used as a pilot, and the LMS adaptive equalization algorithm (step factor μ = 0.01) is used for channel estimation and waveform reconstruction. Testing showed that under vibration interference, this mechanism improved the eye diagram opening of the data signal by 40% and reduced the bit error rate from 5 × 10⁻⁶ before reconstruction. -3 Significantly reduced to 3×10 -6 This enables high-fidelity data transmission.

[0040] 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 based on signal phase fluctuations. This creates a complementary relationship between energy transmission performance and data anti-interference capability in the frequency domain. This includes monitoring high-frequency pulse signal phase fluctuations and obtaining quantified data on fluctuation amplitude and duration; generating a set of isolation parameters to guide frequency band allocation based on the distribution characteristics of the quantified fluctuation amplitude and duration data within the energy transmission and data transmission frequency bands; dynamically adjusting the center frequency position of the energy transmission frequency band and the available bandwidth range of the data transmission frequency band based on the isolation parameter set; and establishing a mathematical correlation model between energy transmission power enhancement capability and data anti-interference enhancement level to form a complementary optimization relationship.

[0041] Understandably, the instantaneous phase value of the high-frequency pulse signal is monitored in real time by a high-speed phase detection circuit. The amplitude and duration of the phase fluctuation are calculated using a sliding window statistical method, and the quantized data is output. Based on the quantized data of the fluctuation amplitude and duration, the energy distribution ratio and frequency of occurrence in the energy transmission frequency band and the data transmission frequency band are statistically analyzed respectively, generating a set of isolation parameters to guide frequency band allocation. This set includes at least the recommended offset of the energy frequency band, the recommended bandwidth of the data frequency band, and the interference intensity weighting coefficient. Based on the isolation parameter set, the gradient descent optimization algorithm embedded in the frequency division coupling module is used. The center frequency of the energy transmission band is dynamically adjusted to move it away from high-interference areas, and the available bandwidth of the data transmission band is adjusted simultaneously. Raised cosine roll-off filters are used to optimize its spectral efficiency. Finally, a linear or nonlinear mathematical correlation model is established between the power enhancement capability of energy transmission and the degree of data anti-interference enhancement. A quantitative mapping rule is defined between the power gain of the energy band when it obtains additional spectrum resources and the bit error rate performance that the data band can maintain through compression coding or enhanced error correction. Thus, under the constraint of constant total spectral efficiency, the two form a dynamic complementary optimization relationship in the allocation of frequency domain resources.

[0042] For example, the phase of a high-frequency pulse signal with a center frequency of 1.0MHz is monitored at a sampling rate of 10MSPS. A sliding window length of 100 sampling points is set, and an interference event with a phase fluctuation amplitude exceeding 15 degrees and lasting for 5 milliseconds is calculated. Spectrum analysis shows that the interference accounts for 70% of the power in the energy band (around 1.0MHz) and 30% in the data band (around 2.2MHz). Based on this, an isolation parameter set is generated: {Energy band offset: +50kHz, Data band bandwidth adjustment: -10%, Interference weight: 0.7}. The frequency division coupling module adjusts the energy carrier center frequency from 1.0MHz to 1.05MHz accordingly, while compressing the data band bandwidth from 400kHz to 360kHz. The established complementary relationship model is: ΔP_energy = 3% × (ΔBw_data / Bw_data_initial) × K, where K is a correction factor (K = 1.2 in this example). The model shows that a 10% reduction in data bandwidth can result in a 3.6% increase in energy transmission power. Actual measurements showed that the adjusted power transmission capacity increased from 100W to 103.6W, while the data channel maintained a bit error rate of 1×10⁻⁶ due to the adoption of more efficient LDPC encoding. -6 This level of performance optimization achieves complementary performance optimization.

[0043] In some applications, the synergistic effect of the thermal compensation mechanism and the frequency band allocation mechanism is used to offset the impact of deformation on frequency band isolation, and to eliminate signal interference through frequency avoidance and processing based on the coded sequence, so as to optimize energy transmission efficiency and data fidelity. This includes establishing a linkage adjustment mechanism between the deformation of the compensation material and the frequency band allocation parameters; adjusting the energy emission intensity and data modulation level based on the compensated transmission path state; and synergistically optimizing the frequency avoidance strategy and anti-interference coding processing algorithm to eliminate signal intermodulation interference.

[0044] Understandably, a real-time linkage adjustment mechanism between the deformation of the compensation material and the frequency band allocation parameters is established. This involves synchronously collecting temperature data and gap changes using multi-source sensors deployed near the magnetic coupling path, and constructing a mapping function between these data and the frequency band isolation parameters in the frequency division coupling module. This allows for automatic pre-adjustment of the frequency band allocation parameters when a specific deformation of the compensation material caused by temperature changes is detected. Based on the compensated transmission path state, the changes in the current magnetic coupling coefficient and path loss are inverted and evaluated in real time through a combination of electromagnetic field simulation and online parameter identification. Based on this, a closed-loop control strategy is used to fine-tune the energy. The power amplification level of the transmitting unit and the signal modulation depth of the data modulation unit adaptively match the energy transmission intensity and data signal amplitude to the optimal operating point. The frequency avoidance strategy and anti-interference coding processing algorithm are optimized in a coordinated manner. The frequency avoidance information output by the vibration frequency real-time monitoring module is fused with the channel estimation and equalization algorithm in the anti-interference codec. By performing spectrum avoidance at the front end and interference cancellation at the back end of the signal processing link, the signal intermodulation interference component caused by multi-physical field coupling is suppressed to the maximum extent, thereby achieving synchronous optimization of energy transmission efficiency and data fidelity across the entire operating range.

[0045] For example, an eddy current sensor detected deformation in the compensation material caused by a temperature increase from 25°C to 250°C, resulting in a change in the magnetic coupling air gap from 0.50 mm to 0.48 mm. This deformation triggered a frequency division coupling module via a preset transfer function (K=Δf / Δg=50kHz / mm), pre-compensatingly lowering the center frequency of the energy band by 25kHz. Online parameter identification based on the Helmholtz coil principle showed a 5% decrease in the coupling coefficient k. Accordingly, the energy transmission power was increased from 100W to 105W, and the modulation depth of the data signal was adjusted from 0.8 to 0.75 to maintain signal integrity. Simultaneously, the vibration monitoring module output an 85Hz interference frequency, and a frequency avoidance strategy ultimately locked the energy carrier at 1.025MHz (originally 1.050MHz). At the receiver, the error correction capability of RS coding was used in conjunction with a pilot-based LMS equalization algorithm (μ=0.005) for demodulation. Tests showed that under this collaborative mechanism, in a combined high-temperature and vibration environment at 250℃, the energy transmission efficiency remained stable at 92% ± 1%, and the data error rate was less than 1 × 10⁻⁶. -6 It significantly outperforms the performance of a single mechanism.

[0046] In some of these applications, the actual expansion 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. This includes simultaneously acquiring three-dimensional deformation data of the main structure and the compensation material during the heating process in a test environment; analyzing and recording the time-series difference curves of the expansion of the main structure and the compensation material; identifying areas of insufficient compensation through calculation; and adjusting the porosity and density distribution of the compensation material using a density adjustment process based on the areas of insufficient compensation, so that the expansion synchronization error between the compensation material and the main structure is controlled within a predetermined threshold.

[0047] Understandably, in a high-temperature test environment simulating actual working conditions, a combination of non-contact optical measurement devices and contact displacement sensors is used to simultaneously acquire three-dimensional deformation data of the main structure and compensation material samples during programmed temperature-controlled heating, obtaining their expansion displacement at different temperature points and in different directions. The acquired time-series deformation data is aligned and compared to plot the expansion difference curves of the main structure and compensation material with temperature changes. Through finite element calculations and thermo-structural coupling simulation, specific areas where the compensation effect is not as expected due to material inhomogeneity or boundary condition limitations are identified. Based on the spatial distribution and deficient values ​​of the identified insufficient compensation areas, gradient density pressing technology based on powder metallurgy or selective laser sintering additive manufacturing technology are used to specifically adjust the porosity distribution and overall density distribution of the compensation material in these areas. By changing its microstructure, its macroscopic thermal expansion behavior is controlled, ultimately ensuring that the expansion synchronization error between the compensation material and the main structure during the entire heating process is precisely controlled within the predetermined threshold range allowed by the system design.

[0048] For example, a main structural specimen made of Invar alloy and a compensation material specimen made of copper-based composite material were placed side-by-side in a high-temperature test furnace. Starting from room temperature (20°C), the temperature was increased to 300°C at a rate of 3°C / min and held for 30 minutes. During this process, three laser scanners were used to simultaneously acquire the deformation of both specimens in the X, Y, and Z directions at a frequency of 10 times per second. Data analysis showed that at 250°C, the axial expansion of the main structure was 0.300 mm, while the expansion of the compensation material in the same direction was 0.318 mm, resulting in a deviation of 0.018 mm. Finite element thermal stress analysis identified an undercompensated area of ​​approximately 10 mm² near the edge of the compensation material specimen close to the fixture. Subsequently, this area was locally densified using a cold isostatic pressing process at a pressure of 120 MPa, increasing its average density from the initial 7.8 g / cm³ to 8.0 g / cm³. After processing, the heating test was repeated. At 250℃, the difference in expansion between the two was reduced to 0.002mm, successfully controlling the synchronization error within the system's required threshold of 0.005mm, thus ensuring the stability of the magnetic coupling air gap at high temperatures.

[0049] The following describes another embodiment of the non-contact dual-channel energy and data transmission method of the present invention using a rotary transformer: This embodiment identifies the energy carrier and data modulation components using a high-frequency pulse signal output from the secondary side of the rotary coupling device. Frequency band isolation technology separates the energy transmission band from the data transmission band, and an anti-interference coding sequence is embedded in the data signal to resist waveform distortion in the transmission path. A high-speed sampling circuit is deployed at the secondary side of the rotary coupling device to capture the high-frequency pulse signal waveform at the output in real time. A Fast Fourier Transform is used to decompose the original signal into the frequency domain, and a digital bandpass filter bank physically isolates the energy transmission band from the data transmission band, forming two independent signal channels. Next, an anti-interference code based on a pseudo-random sequence is embedded in the data channel. The encoding process employs forward error correction technology to ensure that the signal maintains its complete data structure even when distortion occurs in the transmission path. Quality monitoring mechanisms are established for each frequency band to evaluate energy transmission efficiency and data decoding success rate in real time.

[0050] A non-contact transmission device with a multi-pole coupling structure is constructed. A thermal expansion synchronous compensation material is used in the annular auxiliary unit of the transmission device to ensure that the expansion of the material under high-temperature conditions changes synchronously with the transmission device body, thus maintaining the gap stability of the magnetic coupling path. A contact transmission device with a multi-pole magnetic core structure is designed, and an annular auxiliary unit is integrated around the device. The expansion curve of the device body at high temperatures is determined through material thermodynamic simulation. Based on this, a thermal expansion synchronous compensation material with a matching expansion coefficient is formulated. This material is composed of metal matrix composites and ceramic particles sintered in a specific ratio. The compensation material is embedded into the auxiliary unit in a fan-shaped block manner, with each block mechanically coupled to the device body through elastic connectors. The compensation effect is verified in a high-temperature test environment to ensure that the radial expansion of the compensation material can accurately offset the change in the magnetic coupling path gap caused by the expansion of the device body when the temperature rises.

[0051] A dual-channel collaborative control mechanism is established based on the separated energy and data frequency bands. This mechanism dynamically adjusts the transmission frequency of the energy carrier to create a clearance interval with the drill string's rotational vibration frequency, while simultaneously using the anti-interference coding sequence to reconstruct the data signal waveform in real time. A communication protocol stack for this dual-channel collaborative control mechanism is established, allocating independent bandwidth resource management modules for the energy and data channels respectively. The drill string's rotational vibration frequency is monitored in real time using vibration sensors, and frequency shift keying (FSK) technology is employed to dynamically adjust the center frequency of the energy carrier, ensuring it maintains a safe distance from the vibration characteristic frequency. An adaptive equalizer is deployed in the data channel, utilizing pilot signals embedded in the anti-interference coding sequence to reconstruct the signal waveform distorted by rotational vibration. A cross-channel coordination strategy is designed to automatically utilize redundant resources from the data channel when temporary bandwidth increases are required for energy transmission.

[0052] A frequency division coupling module is configured in the dual-channel collaborative control mechanism. This module dynamically allocates the frequency band coverage of energy and data based on the phase fluctuations of the high-frequency pulse signal, creating a complementary relationship between increased energy transmission power and enhanced data anti-interference capability in the frequency domain. The frequency division coupling module, comprising a digital down-converter and a programmable bandpass filter array, is integrated into the control system. A phase detection circuit tracks the phase jitter of the high-frequency pulse signal in real time. When abnormal fluctuations are detected, the cutoff frequency of the filter bank is dynamically adjusted, and the frequency band coverage of the two channels is reallocated. A frequency domain resource optimization algorithm is established, enabling the energy channel to increase transmission power when it acquires additional frequency bands, while the data channel maintains its original information content through compression encoding. A hysteresis interval for frequency band switching is set to avoid system instability caused by frequent switching.

[0053] The thermal expansion synchronous compensation material works in conjunction with the frequency division coupling module to offset the impact of magnetic coupling path deformation caused by high-temperature environment on frequency band isolation accuracy. Simultaneously, the superposition of avoidance interval and anti-interference coding eliminates signal intermodulation interference caused by rotational vibration, ultimately achieving synchronous optimization of energy transmission efficiency and data fidelity under full rotation conditions. A linkage mechanism is established between the deformation of the thermal expansion synchronous compensation material and the parameter adjustment of the frequency division coupling module. When the temperature sensor detects a change in operating temperature, the material deformation and frequency band reconfiguration process are triggered synchronously. Electromagnetic field simulation verifies the magnetic coupling path parameters after high-temperature deformation, and based on this, the transmit power of the energy carrier and the modulation depth of the data signal are fine-tuned. Next, the avoidance interval strategy and the demodulation algorithm of the anti-interference coding are synergistically optimized to eliminate remaining intermodulation interference components at the signal processing level. Closed-loop testing is conducted across the entire rotational speed range to ensure that energy transmission efficiency fluctuations do not exceed 5% and the data error rate remains below 0.001%.

[0054] A non-contact transmission device with a multi-pole coupling structure was constructed. A synchronously compensating material for thermal expansion was used in the annular auxiliary unit of the transmission device. This ensured that the expansion of the material under high-temperature conditions was synchronized with the expansion of the transmission device itself, maintaining the gap stability of the magnetic coupling path. The composition ratio of the synchronously compensating material was selected based on the thermal expansion coefficient of the transmission device itself, ensuring that the expansion rate of the material under high-temperature conditions was consistent with that of the transmission device itself. A thermomechanical analyzer was used to measure the linear expansion coefficient curve of the transmission device itself in the 20-300℃ range, and the expansion rate at key temperature points was recorded. Samples of the synchronously compensating material with different ratios were prepared using powder metallurgy, and their thermal expansion performance was tested and compared with the data from the original device. The composition ratio with the best matching expansion trajectory was selected as the basic formulation, and nano-zirconia particles were added to adjust the high-temperature stability of the material. The optimized material was fabricated into thin sheet samples to verify its performance degradation characteristics under cyclic thermal shock.

[0055] The actual expansion of the thermal expansion synchronous compensation material was tested in a high-temperature simulated environment. By synchronously comparing the expansion difference between the transmission device body and the compensation material, the density distribution of the compensation material was adjusted. A programmable high-temperature test chamber was built to simulate the temperature gradient change environment of the transmission device during downhole operation. A laser displacement sensor was used to synchronously monitor the three-dimensional deformation of the transmission device body and the compensation material during the heating process, recording the temporal difference in their expansion amounts. Finite element analysis was used to identify areas with poor compensation effects, and a gradient density pressing process was used to adjust the material porosity in these areas. Cross-validation tests were conducted on the improved compensation material to ensure that its expansion synchronization error at the maximum operating temperature did not exceed 0.05 mm.

[0056] The adjusted compensation material is matched with the dynamic expansion data of the transmission device body to generate synchronous expansion parameters for both. A dynamic database containing a three-dimensional relationship of temperature, expansion amount, and time is established to store the deformation trajectories of the transmission device body and the compensation material at different temperature rise rates. A time series alignment algorithm is used to process the two sets of expansion data, calculate the expansion difference at each temperature point, and generate a compensation correction coefficient matrix. A mathematical model of the synchronous expansion parameters is established through polynomial fitting, which can predict the required compensation amount based on real-time temperature. The model parameters are then programmed into the control unit of the transmission device to provide a calculation benchmark for real-time compensation.

[0057] The synchronous expansion parameters are mapped to the structural design of the annular auxiliary unit, ensuring that the deformation path of the compensation material through the annular auxiliary unit remains synchronized with the expansion direction of the transmission device body during high-temperature expansion. Based on the output results of the synchronous expansion parameter model, the mechanical structure of the annular auxiliary unit is redesigned, and a spiral guide groove with a specific angle is machined into the inner wall of the unit. The compensation material block is mounted on the guide groove slider, allowing it to move along a predetermined path during thermal expansion. The inclination angle parameters of the guide groove are optimized through thermo-structural coupling simulation to ensure that the material expansion direction and the radial expansion of the device body form a vector superposition. A limiting ring is added to the outer ring of the auxiliary unit to prevent over-displacement of the compensation material under extreme operating conditions.

[0058] The deformation amplitude of the compensation material is dynamically adjusted by monitoring the gap in the magnetic coupling path in real time, ensuring that the gap stability remains within a preset threshold range during high-temperature expansion. Eddy current gap sensors are placed at key locations along the magnetic coupling path to monitor the air gap changes between the primary and secondary coils in real time. A transfer function between the gap change and the deformation of the compensation material is established; when a gap deviation is detected, the preload of the compensation block is dynamically adjusted via a piezoelectric micro-displacement mechanism. Multi-layered protection thresholds are set: frequency compensation is initiated when the gap fluctuation exceeds a warning value, and system load reduction protection is triggered when it exceeds a critical value. The gap stability data is correlated with parameters such as temperature and rotational speed for continuous optimization of the compensation material's performance parameter library.

[0059] A frequency division coupling module is configured in the dual-channel collaborative control mechanism. This module dynamically allocates the frequency band coverage of energy and data based on the phase fluctuations of the high-frequency pulse signal, creating a complementary relationship between enhanced energy transmission power and improved data anti-interference capability in the frequency domain. It monitors the amplitude and duration of phase fluctuations in the high-frequency pulse signal in real time and generates frequency band isolation parameters based on the distribution ratio of phase fluctuations in the energy and data frequency bands. 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 calculates the amplitude and duration of phase fluctuations using a sliding window statistical method. A spectrum analyzer is used to perform a Fast Fourier Transform on the signal, statistically analyzing the energy proportion of phase fluctuations in the energy and data frequency bands to generate a histogram reflecting the interference intensity of each frequency band. Frequency band isolation parameters are designed based on the interference distribution ratio, including key indicators such as the recommended offset of the energy frequency band and the recommended bandwidth of the data frequency band. Finally, dynamic weighting coefficients are configured for the parameters to give higher decision weight to recent interference data, ensuring the timeliness of parameter generation.

[0060] The frequency band isolation parameters are input into the frequency band allocation logic of the frequency division coupling module. The center position of the energy transmission frequency band and the bandwidth range of the data frequency band are adjusted to ensure the energy frequency band avoids high-interference areas with phase fluctuations. The interference distribution characteristics in the frequency band isolation parameters are analyzed. When continuous high-frequency interference is detected in the energy frequency band, the frequency band reallocation process of the frequency division coupling module is triggered. A gradient descent algorithm is embedded in the module's frequency band allocation logic to automatically calculate the optimal center frequency of the energy frequency band, ensuring it is at least twice the bandwidth away from areas with concentrated phase fluctuations. The bandwidth range of the data frequency band is adjusted synchronously, and a raised cosine roll-off filter is used to optimize its spectral efficiency, ensuring that bandwidth changes do not result in a loss of effective data rate. Finally, the improvement in signal-to-noise ratio before and after adjustment is recorded to verify the effectiveness of the allocation strategy.

[0061] A complementary relationship in the frequency domain is generated based on the adjustment magnitude of the energy transmission frequency band and the bandwidth change of the data frequency band. The power increase magnitude of the energy frequency band is positively correlated with the anti-interference enhancement magnitude of the data frequency band. A quantitative relationship model is established between the power gain of the energy transmission frequency band and the signal-to-noise ratio improvement of the data frequency band, and correlation coefficient analysis confirms their positive correlation. An algorithm for generating the complementary relationship in the frequency domain is designed: when the center frequency of the energy frequency band is adjusted, the corresponding bandwidth compensation amount of the data frequency band is automatically calculated to maintain the overall spectral efficiency of the system. Then, a load balancing mechanism is introduced: when the power increase magnitude exceeds a threshold, additional error correction coding resources are allocated to the data frequency band to enhance anti-interference capability. The implementation effect of the complementary relationship is verified through real-time spectrum monitoring to ensure that no new inter-band crosstalk is generated.

[0062] The frequency division coupling module dynamically allocates complementary relationships to the frequency band coverage of energy and data, allowing the coverage width of the energy band to dynamically contract or expand with the phase fluctuation amplitude, while the coverage width of the data band changes in the opposite direction. After receiving the complementary relationship parameters, the frequency division coupling module activates the dynamic spectrum allocation engine, which includes a digital up-converter and a programmable bandpass filter bank. Based on the real-time monitored phase fluctuation amplitude, a fuzzy control algorithm dynamically adjusts the coverage width of the energy band: when fluctuations intensify, the bandwidth is appropriately contracted to ensure the quality of core frequencies; when fluctuations decrease, the bandwidth is expanded to increase transmission capacity. The coverage width of the data band is simultaneously adjusted in the opposite direction, using digital predistortion technology to compensate for signal distortion caused by bandwidth changes. A frequency band allocation log is generated, recording the environmental parameters and performance indicators at each adjustment.

[0063] Based on real-time updated complementary relationships and closed-loop correction of the frequency division coupling module's allocation logic within the frequency band coverage area, the enhancement of power transmission and data anti-interference capability maintain a complementary state in the frequency domain. A closed-loop monitoring system is established to continuously track the trends in power transmission efficiency and data bit error rate after the implementation of the complementary relationship. When performance indicators deviate from expectations, 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 algorithms. Core parameters such as the frequency band switching threshold and bandwidth adjustment step size in the module are updated, enabling the system to respond more quickly to sudden interference. The optimized allocation logic is solidified into the FPGA hardware logic to ensure that the dynamic balance between power transmission and data anti-interference capability is maintained even under extreme operating conditions.

[0064] The following describes this embodiment in conjunction with an application scenario: During the high-speed rotation of the drill string in a fully rotating vertical drilling system, the high-frequency pulse signal output from the secondary side of the rotary transformer via the rotary coupling device first separates the energy carrier and data modulation components. Frequency band isolation technology completely decouples the energy transmission frequency band (used to drive downhole instruments) from the data transmission frequency band (used to upload formation parameters), and an anti-interference coding sequence is embedded in the data signal to suppress waveform distortion caused by drill string vibration. To cope with the high-temperature downhole environment, the non-contact transmission device adopts a multi-pole coupling structure. Its annular additional unit is filled with thermal expansion synchronous compensation material. The composition ratio of this material is strictly matched with the thermal expansion coefficient of the transmission device body, ensuring that the expansion of the compensation material changes synchronously with the transmission device body under high-temperature conditions. This maintains the gap stability of the magnetic coupling path and avoids a decrease in energy transmission efficiency due to differences in thermal expansion. In the dual-channel collaborative 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 to avoid the main interference frequency band of drill string rotation vibration, and simultaneously 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 enhancement and data anti-interference capability are complementary and optimized in the frequency domain. The thermal expansion synchronous compensation material and the frequency division coupling module work together: the former offsets the impact of high temperature expansion on the frequency band isolation accuracy through the deformation path of the ring-shaped auxiliary unit, while the latter dynamically allocates the frequency band coverage of energy and data according to phase fluctuations. Finally, the signal intermodulation interference caused by rotational vibration is eliminated through the superposition of avoidance interval and anti-interference coding, so as to achieve a synchronous improvement in energy transmission efficiency and data fidelity under the full-speed rotation of the drill string, and ensure stable power supply to downhole tools and real-time reliable transmission of formation data.

[0065] For the purpose of simplicity, the method steps disclosed in the above embodiments are described as a series of actions. However, those skilled in the art should understand that the embodiments of the present invention are not limited to the described order of actions, because according to the embodiments of the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily essential to the embodiments of the present invention.

[0066] like Figure 2 As shown, the present invention also provides a contactless dual-channel energy and data transmission system for rotary transformers, comprising: The signal recognition and processing module 201 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 the energy transmission frequency band and the data transmission frequency band, and embed a coding sequence during the frequency band isolation process to suppress transmission distortion. The thermal compensation mechanism configuration module 202 is configured to use a thermal compensation mechanism to make the expansion of the compensation structure change synchronously with the main structure in order to maintain the gap stability of the transmission path. 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 interference frequencies, and reconstruct the waveform of the data signal transmitted in the data transmission frequency band through the coding sequence. The frequency band allocation mechanism configuration module 204 is configured to configure a frequency band allocation mechanism, which dynamically allocates 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 capability form a complementary relationship in the frequency domain. The collaborative optimization module 205 is configured to counteract the impact of deformation on frequency band isolation based on the synergistic effect of the thermal compensation mechanism and the frequency band allocation mechanism, and to eliminate signal interference through frequency point avoidance and processing based on the coding sequence, so as to optimize energy transmission efficiency and data fidelity.

[0067] It is worth noting that although only some basic functional modules are disclosed in the embodiments of this invention, it does not mean that the composition of this system is limited to the above-mentioned basic functional modules. On the contrary, what this embodiment intends to express is that, based on the above-mentioned basic functional modules, those skilled in the art can arbitrarily add one or more functional modules in combination with existing technology to form an infinite number of embodiments or technical solutions. That is to say, this system is open rather than closed. The fact that this embodiment only discloses a few basic functional modules should not be considered as the scope of protection of the claims of this invention being limited to the disclosed basic functional modules. At the same time, for the convenience of description, the above device is described separately according to its functions as various units and modules. Of course, in implementing this invention, the functions of each unit and module can be implemented in one or more software and / or hardware.

[0068] like Figure 3 As shown, the present invention also provides an electronic device, including: 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 performs the steps of a rotary transformer non-contact energy and data dual-channel transmission method.

[0069] Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. For example... Figure 3 The structure shown in this embodiment of the invention includes an electronic device comprising one or more processors 710 and a memory 720; the processors 710 in this electronic device may be one or more. Figure 3 Taking a processor 710 as an example; a memory 720 is used to store 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 a non-contact dual-channel energy and data transmission method for a rotary transformer as described in any one of the embodiments of the present invention.

[0070] The electronic device may also include an input device 730 and an output device 740.

[0071] The processor 710, memory 720, input device 730, and output device 740 in this electronic device can be connected via a bus or other means. Figure 3 Taking the example of a connection between China and Israel via a bus.

[0072] The memory 720 in this electronic device serves as a computer-readable storage medium, capable of storing one or more programs. These programs can be software programs, computer-executable programs, or modules, such as the program instructions / modules corresponding to the contactless dual-channel energy and data transmission method for a rotary transformer provided in this embodiment of the invention. The processor 710 executes various functional applications and data processing of the electronic device by running the software programs, instructions, and modules stored in the memory 720, thereby realizing the contactless dual-channel energy and data transmission method for a rotary transformer described in the above embodiment.

[0073] The memory 720 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the electronic device. Furthermore, the memory 720 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 720 may further include memory remotely located relative to the processor 710, which can be connected to the device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0074] Input device 730 can be used to receive input digital or character information, and to generate key signal inputs related to user settings and function control of the electronic device. Output device 740 may include display devices such as a display screen.

[0075] The present invention also provides a computer-readable storage medium storing a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of a rotary transformer contactless dual-channel energy and data transmission method.

[0076] Specifically, the computer storage medium in this embodiment of the invention can be 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. For example, a computer-readable storage medium can be—but is not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. 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 conjunction with an instruction execution system, apparatus, or device.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A non-contact dual-channel energy and data transmission method using a rotary transformer, characterized in that, include: In response to the high-frequency pulse signal, the energy component and data component are identified, and frequency band isolation processing is performed on the energy component and data component to separate the energy transmission frequency band and the data transmission frequency band. During the frequency band isolation process, a coding sequence is embedded to suppress transmission distortion. Based on the thermal compensation mechanism, the expansion of the compensation structure changes synchronously with the main structure to maintain the gap stability of the transmission path. A dual-channel control mechanism is established based on the energy transmission frequency band and the data transmission frequency band. The transmission frequency of the energy carrier in the energy transmission frequency band is adjusted to avoid interference frequencies. The waveform of the data signal transmitted in the data transmission frequency band is reconstructed through the coding sequence. Configure a frequency band allocation mechanism 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 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, the impact of deformation on frequency band isolation is offset, and signal interference is eliminated through frequency point avoidance and processing based on the coding sequence, so as to optimize energy transmission efficiency and data fidelity.

2. The non-contact dual-channel energy and data transmission method for a rotary transformer according to claim 1, characterized in that, In response to the identification of energy and data components by a high-frequency pulse signal, frequency band isolation processing is performed on the energy and data components to separate the energy transmission frequency band and the data transmission frequency band. Furthermore, a coding sequence is embedded during the frequency band isolation process to suppress transmission distortion. Real-time capture of waveform information of high-frequency pulse signals to obtain time-domain characteristics; The time-domain features are decomposed into the frequency domain through transformation processing to obtain the corresponding spectral distribution; Based on the difference in frequency characteristics 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 codes based on specific sequences are embedded in the data transmission channel, and error correction techniques are used to ensure signal integrity.

3. The non-contact dual-channel energy and data transmission method for a rotary transformer according to claim 1, characterized in that, Based on a thermal compensation mechanism, the expansion of the compensation structure changes synchronously with that of the main structure to maintain the gap stability of the transmission path, further including: Select the composition ratio of the compensation material to make the expansion behavior consistent with the main structure; Test the actual expansion of the compensation material in a high-temperature environment and adjust the physical distribution to match the expansion of the main structure; Generate synchronous expansion parameters for the compensation material and the main structure; The deformation path of the compensation structure is designed based on the synchronous expansion parameters to ensure that the compensation direction is consistent with the change of the main structure.

4. The non-contact dual-channel energy and data transmission method for a rotary transformer according to claim 1, characterized in that, A dual-channel control mechanism is established based on the energy transmission frequency band and the data transmission frequency band. The transmission frequency of the energy carrier in the energy transmission frequency band is adjusted to avoid interference frequencies. The waveform of the data signal transmitted in the data transmission frequency band is reconstructed using the coding sequence. Further, the mechanism includes: Configure independent bandwidth management strategies for energy transmission frequency bands and data transmission frequency bands, and allocate corresponding spectrum resources accordingly; Real-time monitoring of the vibration frequency characteristics of the external environment and dynamic tracking of the distribution of interference frequency bands; Based on the distribution of interference frequency bands, adjust the center transmission frequency of the energy carrier in the energy transmission frequency band to maintain a safe isolation interval; In the data transmission frequency band, waveform reconstruction is performed based on the pilot or training sequence in the coded sequence.

5. The non-contact dual-channel energy and data transmission method for a rotary transformer according to claim 1, characterized in that, A frequency band allocation mechanism is configured to dynamically allocate the coverage of the energy transmission frequency band and the data transmission frequency band based on signal phase fluctuations, so that the energy transmission performance and data anti-interference capability complement each other in the frequency domain, further including: Monitor the phase fluctuations of high-frequency pulse signals and obtain quantitative data on the amplitude and duration of the fluctuations; Based on the distribution characteristics of the quantified data of the fluctuation amplitude and duration in the energy transmission frequency band and the data transmission frequency band, a set of isolation parameters is generated to guide frequency band allocation; 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. Establish a mathematical correlation model between the power transmission capability and the data anti-interference enhancement level to form a complementary optimization relationship.

6. The non-contact dual-channel energy and data transmission method for a rotary transformer according to claim 3, characterized in that, Based on the synergistic effect of the thermal compensation mechanism and the frequency band allocation mechanism, the impact of deformation on frequency band isolation is offset, and signal interference is eliminated through frequency point avoidance and processing based on the coded sequence to optimize energy transmission efficiency and data fidelity, further including: Establish a linkage adjustment mechanism between the deformation of compensation materials and frequency band allocation parameters; Based on the compensated transmission path state, adjust the energy emission intensity and data modulation level; Collaborative optimization of frequency avoidance strategies and anti-interference coding processing algorithms is used to eliminate signal intermodulation interference.

7. The non-contact dual-channel energy and data transmission method for a rotary transformer according to claim 3, characterized in that, Testing the actual expansion of the compensation material in a high-temperature environment, adjusting the physical distribution to match the expansion of the main structure, further includes: In the experimental environment, three-dimensional deformation data of the main structure and compensation material during the heating process were collected simultaneously; Analyze and record the time-series difference curves of the expansion amounts of the main structure and the compensation material, and identify the areas of insufficient compensation through calculation. Based on the insufficient compensation area, a density adjustment process is used to adjust the porosity and density distribution of the compensation material so that the expansion synchronization error between the compensation material and the main structure is controlled within a predetermined threshold.

8. A non-contact dual-channel energy and data transmission system for a rotary transformer, characterized in that, include: The 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 the energy transmission frequency band and the data transmission frequency band, and embed a coding sequence during the frequency band isolation process to suppress transmission distortion. The thermal compensation mechanism configuration module is configured to be based on the thermal compensation mechanism, so that the expansion of the compensation structure changes synchronously with the main structure 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 frequencies, and reconstruct the waveform of the data signal transmitted in the data transmission frequency band through the coding sequence. The frequency band allocation mechanism configuration module is configured to configure a frequency band allocation mechanism that dynamically allocates 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 data anti-interference capability form a complementary relationship in the frequency domain. The collaborative optimization module is configured to counteract the impact of deformation on frequency band isolation based on the synergistic effect of the thermal compensation mechanism and the frequency band allocation mechanism, and to eliminate signal interference through frequency point avoidance and processing based on the coding sequence, so as to optimize energy transmission efficiency and data fidelity.

9. An electronic device, characterized in that, include: The system includes a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus; the memory stores a computer program, which, when executed by the processor, causes the processor to perform the steps of the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, It stores a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of the method according to any one of claims 1 to 7.

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