3948 results about "Crosstalk" patented technology

The embodiment of the invention discloses a display panel and a display device, an isolation layer is arranged in a display area, the isolation layer comprises a plurality of isolation openings, and light-emitting function layers are located in the isolation openings, so that the isolation layer isolates the light-emitting function layers of adjacent light-emitting devices, and it is ensured that crosstalk does not occur between the light-emitting devices. According to the display panel, the power source wire is arranged in at least part of the non-display area except the first side edge circuit area, that is, the power source wire can not be arranged in the first side edge circuit area, so that the distance between the dam and the display area does not comprise the width of the frame occupied by the power source wire. Therefore, the distance between the dam and the display area can be reduced, the width of the first frame area is reduced, a narrow frame is achieved, and the screen-to-body ratio is increased.

The invention relates to the technical field of light source controllers, and discloses a simulation light source controller parameter adaptive adjustment method and device, and the method comprises the steps: collecting an input voltage signal, an output current signal, an environment temperature signal and a channel power signal of a simulation light source controller, and inputting a neural network model for parameter mapping, obtaining a light source parameter dynamic response matrix; carrying out feature dimension reduction, and constructing a target optimization model; grid division is carried out on the parameter space, a steepest descent direction vector and a vertical search direction vector are respectively generated on divided grid points, and a parameter optimization direction set is obtained; iteratively updating each control parameter to obtain a parameter iteration sequence set; performing a voltage stabilization output test to obtain a plurality of candidate control parameter combinations; and the parallel verification test is carried out, and the optimal control parameter combination is determined, so that the inter-channel crosstalk of the simulation light source controller is effectively inhibited, and the problem of mutual interference when multiple channels work in parallel is solved.

The invention relates to a backside illuminated image sensor, a preparation method thereof and electronic equipment. The backside illuminated image sensor comprises a substrate, a grating, photodiodes and target isolation structures, wherein the photodiodes and the target isolation structures are located on the first surface of the substrate, are alternately arranged in the first direction parallel to the first surface and extend towards the substrate; the substrate internally comprises a plurality of trench isolation structures which extend into the substrate through the first surface and are arranged at intervals in the first direction; the trench isolation structures and the target isolation structures over the trench isolation structures are arranged in a one-to-one manner; the photodiode comprises a SiAs laminated layer and a SiAs cover layer which are arranged along a direction away from the substrate, and a SiP layer which penetrates through the SiAs laminated layer along a first direction and a direction towards the substrate; the target isolation structure comprises a protruding part higher than the top surface of the photodiode; the grating and the protruding parts are prepared in the same process step at the same period. Signal crosstalk of the BSI image sensor and unnecessary damage caused by IMP can be avoided, and photoelectric conversion efficiency can be improved.

The invention relates to the technical field of signal acquisition, and discloses a signal acquisition method and system for an MEMS gas sensor array, and the method comprises the steps: carrying out the analog-to-digital conversion and temperature and humidity compensation of resistance value signals synchronously acquired by a plurality of sensing units in the MEMS gas sensor array, and obtaining a compensated response matrix; performing fast Fourier transform and dynamic feature extraction to obtain a frequency domain feature matrix of each sensing unit; performing sensing unit crosstalk coefficient calculation and response component decoupling to obtain a decoupling feature vector; carrying out Hilbert transform and adsorption-desorption characteristic extraction to obtain a gas sensitive characteristic sequence; inputting a self-adaptive power spectrum analysis model to carry out cross sensitivity identification processing to obtain a target gas response component; according to the method, the accuracy of target gas detection and concentration quantitative analysis is improved.

The invention discloses a solid state disk data reading method and system, a storage medium and a program product, and the method comprises the steps: calculating a temperature change rate and a temperature accumulation effect coefficient of a to-be-read data block according to a current temperature value and a historical temperature record; dividing the physical page address into a plurality of subintervals, and determining a loss level; calculating an initial reading voltage threshold value; compensating the initial reading voltage threshold value to obtain a target reading voltage threshold value; performing parallel reading on the to-be-read data block by adopting the target reading voltage threshold value to obtain original reading data; performing crosstalk correction on the original read data to obtain corrected data; when the reliability verification result of the corrected data of any subinterval is lower than a preset threshold value, error correction processing is carried out; and updating the loss level of the sub-interval according to the verification result of the reliability verification, and re-dividing the sub-interval of the data block to be read. The data reading delay is reduced, and the performance of the solid state disk in a scene of frequently reading small files is improved.

The invention relates to the technical field of sensors, and provides a six-dimensional force sensor based on a planar semiconductor process and a preparation method thereof, and the six-dimensional force sensor comprises a central bearing platform, a housing, an elastic beam and a buffer beam. One end of the elastic beam is connected to the center bearing table, the other end of the elastic beam is connected to the buffer beam, the buffer beam and the elastic beam are orthogonally arranged, and the end, away from the elastic beam, of the buffer beam is connected to the shell. Wherein the surfaces of the elastic beam and the buffer beam are provided with six groups of strain gauges, and the six groups of strain gauges are respectively used for measuring forces in three directions and moments in three directions. According to the method, the multi-load-step-based least square method linear matrix decoupling is adopted, so that the inter-dimensional coupling error of the six-dimensional force sensor is reduced to below 2%. According to the invention, the six-dimensional force sensor is prepared by adopting a planar semiconductor process, the difficulties of side surface attachment and side wall lead binding of the strain gauges are avoided, and the six-dimensional force sensor has the advantages of simple process, low manufacturing cost and small crosstalk error.

The invention relates to the technical field of light source control, and discloses a multispectral LED detection light source synchronous control method, device and equipment and a storage medium. The method comprises the following steps: carrying out double-interlaced spectral data sampling on a light source, and carrying out baseline extraction and compensation correction on preset three-dimensional spectral parameters; mapping of multi-dimensional mixed domain time sequence characteristics and decomposition of working characteristic tensors are carried out on the corrected calibration spectrum data, and modulation of recursive phases and group delay compensation calculation are carried out; performing crosstalk compensation of a multi-stage LED light source channel and suppression reconstruction of a multi-harmonic component on the light source phase compensation vector subjected to compensation calculation to generate light source correction control data; and performing light source driving signal synthesis on the light source correction control data to obtain a light source driving waveform sequence, and performing light source channel distribution and synchronous adjustment on the light source driving waveform sequence to generate a light source synchronous control result of the target multispectral LED detection light source. According to the invention, high-precision synchronous control of the multispectral LED detection light source is realized.

The invention discloses an adaptive modulation anti-multipath unmanned aerial vehicle swarm communication method and system based on MIMO-OFDM, and relates to the technical field of wireless communication, and the method comprises the steps: receiving a down-conversion baseband; synchronization and compensation are carried out; removing a cyclic prefix and carrying out fast Fourier transform; estimating a channel and noise on the training and pilot frequency, and correcting a common phase; performing frequency domain equalization and soft decision, forward error correction and cyclic redundancy check according to the estimation to obtain a control parameter, decoding a payload according to the control parameter, and performing statistics to form a link quality indication; modulating coding, bandwidth and spatial mode, configuring mapping, power and weight, and packaging physical layer protocol data; carrier sensing conflict avoiding sending, confirmation and retry are adopted to generate media access statistics; and the routing selects the next-hop multi-hop forwarding according to the transmission quality, and performs end-to-end statistics and recharge. Through cooperation of hierarchical synchronization and phase correction with cyclic prefix and FFT, crosstalk is suppressed, channel noise scale optimization soft decision is robust, data decoupling is controlled, and end-to-end availability is improved through multi-hop self-healing recharge.

The invention relates to a modeling and optimizing method for inter-layer signal crosstalk of a PCB (Printed Circuit Board). Frequency response data of all dielectric layers of the PCB under different temperature and humidity conditions are collected, and a mapping model with the temperature gradient and the humidity diffusion gradient as input and the dielectric constant as output is established. And calculating the dynamic distribution of mutual capacitance and mutual inductance under the environment change by combining the spatial layout parameters of the differential signal pair, and constructing a crosstalk sensitivity evaluation model with coupled frequency, environment and layout. And high-risk areas with crosstalk sensitivity caused by environment change are identified, and the crosstalk change rate of each area is quantified. For a sensitive area, a temperature and humidity compensation medium structure is introduced to stabilize local dielectric characteristics and reduce the influence of the environment on crosstalk. And according to the compensated medium distribution, adjusting a differential signal wiring path and impedance matching by adopting an optimization method with the aim of minimizing the crosstalk change rate, and generating a wiring layout with environmental robustness. According to the invention, the signal integrity and the transmission reliability of the multi-layer PCB in a temperature and humidity changing environment can be effectively improved.

The invention relates to the technical field of electronic circuits, in particular to a construction method and system of a high-speed differential signal transmission model. The method comprises the following steps: acquiring design data of the printed circuit board, and extracting differential signal line data; constructing a high-speed differential signal transmission model according to the differential signal line data; performing signal transmission simulation based on the high-speed differential signal transmission model to obtain high-speed differential signal transmission data; identifying a crosstalk source position based on the high-speed differential signal transmission data to obtain a crosstalk source coordinate; detecting via hole dislocation based on the crosstalk source coordinates to obtain via hole dislocation data, and evaluating a heat accumulation degree based on the via hole dislocation data; identifying an electrical fault area of the circuit board based on the heat accumulation degree; and extracting stack structure information according to the printed circuit board design data. Based on the electronic circuit technology, the precision and reliability of the high-speed differential signal transmission model are improved, and the signal transmission quality and the electrical fault detection rate are remarkably improved.

The invention relates to the technical field of audio control, and provides an audio control method and device, electronic equipment and a storage medium. The audio control method comprises the steps that a sound effect test is carried out on a target space based on a specified measurement signal to obtain environment response information, and the environment response information comprises pulse response information and information obtained after pulse response is separated; analyzing the environmental response information to obtain acoustic characteristic information of the target space; performing compensation processing on the to-be-processed audio based on the acoustic characteristic information to obtain a regulated audio; regulating and controlling the gains of the multiple sound channels corresponding to the regulated and controlled audio to obtain audio regulated and controlled again; and carrying out multi-channel collaborative optimization processing on the audio after being regulated and controlled again to obtain the audio with a target effect. According to the method, accurate compensation of the acoustic defect of the target space is realized, the problem of crosstalk between sound channels is effectively solved, the positioning and space sense of the sound image is remarkably improved, the overall hearing sense of the audio is greatly improved, and the audio output is continuously optimized.

The invention discloses a wiring harness dynamic load and electromagnetic interference coupling test method, and relates to the technical field of wiring harness testing, and the method comprises the steps: S1, defining a plurality of environment parameter groups, and constructing a test platform; s2, dynamic current pulse and multi-axis vibration excitation are synchronously loaded; s3, applying broadband electromagnetic interference signals and monitoring signal crosstalk amplitude and bit error rate changes; s4, the sensor nodes are dynamically configured according to the topological structure of the wire harness; s5, generating a feature vector; s6, outputting a wire harness performance index; s7, outputting a wire harness fault probability prediction value; s8, obtaining prediction data; s9, triggering a high-speed data recording mode, and storing original sensor data 60 seconds before the fault; and dynamically adjusting the gradient step length and the loading sequence in the environment parameter group. Performance evaluation, fault prediction and service life management can be carried out on the wire harness under complex working conditions, and the reliability and safety of an automobile electrical system are improved.

The invention discloses a method for improving transformer area crosstalk of HPLC (High Performance Liquid Chromatography) and micropower wireless dual-mode communication, which comprises the following steps of: S1, electrifying an acquisition terminal equipment node, and aligning signal acquisition time windows of two communication modes; s2, combining the obtained dual-mode signal parameters with a preset transformer area topology database to generate feature vectors of multi-dimensional features; s3, training to generate a random forest model, inputting feature vectors of multi-dimensional features, dynamically calculating the affiliation weight value of the transformer area, and carrying out nonlinear weighted calculation on the feature vectors; and S4, on the basis of weight comparison and transformer area boundary node processing, correcting measurement errors by combining the transformer area attribution weight value with a preset impedance shielding compensation algorithm, generating a unique transformer area identifier, locking a networking relationship, and executing transformer area attribution judgment. According to the method, the wide coverage advantage of HPLC is reserved, meanwhile, the space attenuation characteristic of wireless communication is used for achieving accurate recognition of the transformer area boundary, and the installation and acquisition stability of the use and acquisition terminal equipment can be improved.

The invention relates to the technical field of LED lamp adjustment, in particular to a multi-path adjusting system of an LED lamp. The method comprises the following steps that: a parameter acquisition module acquires multi-path real-time light intensity parameters and performs noise covariance estimation and channel interference analysis to generate a noise matrix and a channel crosstalk matrix, a change simulation module predicts light intensity change based on the matrixes and generates a simulation LED lamp group, and a dead zone compensation module calculates a duty ratio and performs compensation. According to the method, an anti-overlapping sequence is formed, in the phase distribution module, phase quantization and peak shifting distribution are carried out on the anti-overlapping sequence to obtain a peak shifting control sequence, the channel coordination module generates a multi-path control sequence according to temperature compensation processing, and the feedback optimization module continuously adjusts an LED lamp set by collecting a feedback strong light value to achieve accurate multi-path adjustment. According to the invention, the accuracy of LED lamp adjustment is improved.

The invention belongs to the field of driving circuits of gallium nitride (GaN) power devices in motor driving or power electronic conversion, and discloses a design method of a three-level active driving circuit for restraining bridge arm crosstalk of a GaN device, and the method comprises the steps that a circuit is connected in a bridge type topological structure, and the bridge type topological structure comprises an upper bridge arm and a lower bridge arm which are the same in structure; the upper bridge arm and the lower bridge arm are both divided into two parts, namely a traditional driving circuit and an auxiliary circuit, and the auxiliary circuit is divided into a negative voltage self-recovery circuit and a crosstalk suppression circuit. According to the invention, a negative voltage self-recovery circuit and a crosstalk suppression circuit are formed by using the output and reverse conduction characteristics of the charge pump and the auxiliary GaN device. The advantages of the two methods are combined, the defects of a traditional method are effectively overcome, the turn-off speed is increased, the turn-off loss is reduced, and the positive and negative crosstalk is reduced while the turn-on speed is hardly influenced and the reverse turn-on loss is not additionally increased. The overall design is flexible, efficient and reliable.

The invention belongs to the field of photoelectric detection, and discloses a germanium-silicon photoelectric detector array and a signal reading method thereof, and the germanium-silicon photoelectric detector array comprises a plurality of macro pixel units which are sequentially arranged side by side according to a set interval; each macro pixel unit comprises a plurality of pixel units and an output bus, the pixel units are sequentially arranged from top to bottom according to a set interval, the output end of each pixel unit is electrically connected with the output bus, and the voltage input end of each pixel unit is connected with a bias voltage output module. Providing a bias voltage for each pixel unit to enable each pixel unit to work in a bias state; inputting an optical signal to a detector of each pixel unit to generate a light current, and performing signal conversion and amplification on the light current to obtain an amplified voltage signal; and the voltage signal is output to the output bus after passing through the driver. According to the technical scheme, layout, wiring and hardware resources can be saved, and meanwhile the adverse effect caused by the power supply crosstalk problem is reduced.

The invention relates to a backside illuminated image sensor and a manufacturing method thereof, and relates to the technical field of integrated circuits. The manufacturing method comprises the steps that a substrate is provided, the substrate comprises a first surface and a second surface which are opposite, a first isolation structure is formed in the substrate, and the first isolation structure extends from the first surface to the second surface; second isolation structures and metal grids are formed, the second isolation structures correspond to the first isolation structures and are arranged on the first surface, the second isolation structures are arranged on the first surface at intervals, and the second isolation structures and the metal grids are sequentially arranged in the direction away from the first surface; forming photodiodes between the second isolation structures, wherein the photodiodes and the second isolation structures are alternately arranged on the first surface; forming a light filtering element on one side, far away from the substrate, of the photodiode, wherein the light filtering element is located between the adjacent metal grids; according to the invention, the crosstalk problem of the backside illuminated image sensor is reduced.

The present invention discloses a prediction method for a crosstalk spike in a half bridge of current-source inverter with silicon carbide devices, where, the prediction method includes calculation of the crosstalk voltage spike in the circuit of current-source type double-pulse test and analysis of the effect of each parameter on the magnitude of the crosstalk spike. The prediction method of the present invention analyzes the horizontal conduction crosstalk mechanism between the gate-source junction of the MOSFET caused by the high-frequency switching action of the silicon carbide (SiC) MOSFET and the SiC Schottky diode connected in series, and derives the prediction model for the crosstalk voltage spike in the half-bridge of current-source inverter. Based on the equivalent circuit of the current-source-type double-pulse test and the crosstalk-induced mechanism, the extreme value of crosstalk voltage spike is accurately predicted, which is helpful to analyze the effects of the drive circuit and the parameters of the power circuit on the crosstalk voltage spike through the prediction model.

The invention relates to the technical field of filters, in particular to an internal shielding component of a power filter, which comprises a shell, a cover plate is mounted at the top of the shell through a cross recessed countersunk head screw, and a metal partition plate is arranged on one side of the inner wall of the shell; the wave-proof sleeve is welded on one side wall of the shell, and the material of the wave-proof sleeve is light nickel-plated copper fabric; when the power supply filter is used, the problem that crosstalk coupling is formed between interference signals can be prevented, the electromagnetic compatibility in the signal transmission process between systems is solved, the anti-wave sleeve is adopted for shielding power supply input of the power supply filter, interference of an input cable on other signals is greatly restrained, and the service life of the power supply filter is prolonged. The electromagnetic compatibility problem of the whole system caused by the fact that high-frequency noise is coupled to a power line is prevented, the shielding effectiveness is improved, the problem of filtering post-stage electromagnetic interference signals is greatly restrained, meanwhile, the heat dissipation area is increased, and the heat dissipation efficiency and effect are improved.

The invention is suitable for the technical field of radars, and provides a radar control method and device, terminal equipment and a computer readable storage medium, and the method comprises the steps: determining a target receiving channel according to echo signals received by each receiving channel; wherein the target receiving channel is a receiving channel of which the received echo signal is an echo signal reflected by a high-reflection object; adjusting a transmitting channel group according to the target receiving channel; wherein the transmitting channel corresponding to the target receiving channel and the transmitting channel corresponding to the non-target receiving channel are located in different transmitting channel groups; and controlling the transmitting channels to re-transmit the detection signals according to the adjusted transmitting channel groups. The transmitting channel corresponding to the target receiving channel and the transmitting channel corresponding to the non-target receiving channel separately transmit the detection laser, so that crosstalk of high-energy reflection echoes generated by a high-reflection object to reflection echoes of a non-high-reflection object can be effectively reduced, and the detection accuracy of the laser radar is improved.

The invention provides an active and passive integrated protection intelligent fuse with a single excitation source. The active and passive integrated protection intelligent fuse comprises a first conducting bar, a signal melt, a second conducting bar, a circuit board and an excitation source, the circuit board is provided with the relay and the excitation source. The relay is connected with an external control unit, the excitation source, the first conducting bar and the second conducting bar. The first conducting bar, the signal melt and the second conducting bar are connected in sequence; an isolating layer is arranged on the relay, and the isolating layer is used for shielding crosstalk of external voltage on the relay; after a plurality of pins of the relay are welded on the circuit board, an insulation processing mode is adopted among the plurality of pins; and in an inspection working condition, the external control unit outputs a first inspection signal to the relay so as to control the relay to be switched into an inspection state, and feeds back the working state of the excitation source to the external control unit.

The invention belongs to the field of display, and particularly relates to a driving module and a display device.The driving module comprises source electrode driving chips, a polarity partition control module, a picture detection module and a frequency division selection module, the source electrode driving chips in odd columns are connected with first signal lines, and the first signal lines are used for transmitting first polarity reversal signals; the source electrode driving chips in even columns are connected with the polarity partition control module through second signal lines, and the picture detection module is used for controlling the polarity partition control module to work according to the detected crosstalk degree of the display picture to form a conventional polarity mode and a polarity symmetry mode. The polarity partition control module enables the polarities of display areas controlled by adjacent source electrode driving chips to be symmetrical to offset coupling and eliminate transverse crosstalk, and the frequency division selection module is used for halving the frequency of a first polarity reversal signal and a second polarity reversal signal in a polarity symmetrical mode, so that bright and dark lines are prevented from being formed at a boundary position, and the display effect is improved. And the display effect of the display panel is improved.

The invention discloses a radiator micro-channel structure integrity detection method based on acoustic measurement, and relates to the technical field of information, the method couples acoustic propagation measurement with density inversion and particle transport observation, firstly screens a key observation object according to density gradient change, and then constructs a hydrodynamic equilibrium graph by using auxiliary particle flow, and finally obtains the structural integrity of the radiator micro-channel. And channel-by-channel difference is carried out with reflection measurement of standard acquired data, so that defects are indicated by three domains of energy, time and space together. According to the closed-loop link, the sensitivity to tiny blockage, slight deformation and early crosstalk is remarkably improved, the false alarm rate that single measurement is easily influenced by noise and working condition fluctuation is reduced, fine positioning of channel-level abnormal positions and ranges is achieved, and the closed-loop link is suitable for high-resolution detection of dense micro-channel arrays without disassembly or destructive operation.

The invention discloses a memory read-write consistency testing method and system, and relates to the technical field of memory testing. Comprising the steps of S1, performing crosstalk coupling modeling: constructing an interlayer crosstalk coupling transfer function according to a quantum tunneling current curve and a three-dimensional parasitic parameter matrix; s2, constructing a three-dimensional failure probability model: obtaining a plane coupling error distribution diagram, and generating an interlayer crosstalk coefficient matrix according to the interlayer crosstalk coupling transfer function; and S3, identifying electromagnetic coupling hot spot regions: determining a risk level of each region according to the three-dimensional failure probability, setting test parameters according to the risk levels, and performing read-write test on the to-be-tested memory through the test parameters. According to the method, three-dimensional quantitative modeling of cross-layer interference is realized, so that the detection range is expanded from a plane to a three-dimensional structure, and a blind area of interlayer electromagnetic coupling in a traditional method is solved.

The invention discloses a radio frequency front-end module and a radio frequency front-end circuit. The radio frequency front-end module comprises a first filter, a second filter, a first inductor, a capacitor and a radio frequency switch. The radio frequency switch is provided with a first port, a second port and an antenna port, the first filter is connected to the first port, and the first filter is used for filtering a radio frequency signal of a first frequency band; the second filter is connected to the second port, the second filter is used for filtering the radio frequency signal of the second frequency band, and the second frequency band and the first frequency band at least partially do not coincide. The first inductor is connected between the first filter and the first port; the capacitor and the first inductor are connected in parallel to form parallel resonance, and the resonant frequency of the parallel resonance is in a second frequency band. When the first filter and the second filter work at the same time, parallel resonance formed by the capacitor and the first inductor can restrain radio frequency signals of the second frequency band leaked to the branch where the first filter is located through the radio frequency switch, so that the problem of signal crosstalk between different branches is solved.

The invention discloses a hemisphere gyroscope driving crosstalk rapid self-identification and compensation method and device, and the method comprises the steps: carrying out four rounds of experiments according to a resonant frequency and a preset amplitude range, gradually increasing the amplitude in the preset amplitude range in each round, and for each amplitude, carrying out the self-identification and compensation of the driving crosstalk of a hemisphere gyroscope. A driving signal is calculated in real time within a set time range and transmitted to a driving electrode, and a detection signal of a detection electrode is collected at the same time; the method comprises the following steps: acquiring a detection signal simplification model, decomposing the detection signal according to the detection signal simplification model, constructing a crosstalk parameter identification model according to all driving signals and corresponding detection signals, solving the parameter identification model, and substituting crosstalk identification parameters into a crosstalk compensation model so as to realize crosstalk compensation of the detection signal when the hemispherical resonator gyroscope works normally. According to the method, the accuracy of driving crosstalk compensation of the hemispherical gyroscope can be effectively improved, so that the control precision and the zero-bias stability of the gyroscope are improved.

The invention provides an optical communication flow dynamic wavelength allocation optimization method and system, computer equipment and a storage medium, flow monitoring modules are arranged at nodes of an optical communication network, flow data of different service types at the nodes are acquired, a central control unit acquires existing wavelength resource information in the optical communication network, and the optimal wavelength allocation of the optical communication flow is realized. Evaluating whether the current wavelength resource allocation is reasonable; the central control unit sends the generated dynamic wavelength allocation mechanism to each node of the optical communication network, and each node adjusts the existing wavelength allocation through the received mechanism; and continuing to collect data of different services at each node, transmitting the collected data to the central control unit for evaluation, and if the preset target is not reached, executing the above steps again. The method has the advantages of balancing the resource distribution of the whole network, avoiding local congestion, improving the overall resource utilization rate, remarkably reducing the problems of packet loss rate and delay exceeding caused by signal crosstalk, reducing the probability of fragment generation in the future and avoiding single-point congestion.

The invention relates to the technical field of cable anti-interference, and discloses a high-frequency coaxial cable anti-interference method and device.The method comprises the steps that a radial progressive impedance gradient double-layer shielding structure with an inner shielding layer and an outer shielding layer is constructed, and a triangular supporting frame structure is arranged between the inner shielding layer and the outer shielding layer; an electromagnetic induction probe is installed on the triangular supporting frame structure, and differential interference signals between the inner shielding layer and the outer shielding layer are collected; performing time-frequency domain conjoint analysis on the differential interference signal to obtain an interference source feature mapping map; and performing multi-mode interference identification and suppression according to the interference source characteristic mapping map to generate an interference offset signal, and performing real-time elimination and feedback on electromagnetic interference in the inner shielding layer and the outer shielding layer based on the interference offset signal to obtain an interference offset feedback effect. And signal reflection and crosstalk among the structures of all layers in the cable are effectively compensated.

The invention discloses a wireless loudspeaker box group cooperative control method and system based on an external Bluetooth transmitting and receiving array, and relates to the technical field of wireless audio control. UWB high-precision positioning and Bluetooth RSSI fingerprint data are fused, an error correction model is constructed, environmental interference data are acquired in real time in combination with spectrum scanning, and the problems of single-technology positioning drift and signal crosstalk are solved. And adopting an improved K-means clustering algorithm, dynamically and adaptively partitioning the sound field according to the movement speed and density of the user, and optimizing the physical topology path of the Bluetooth array based on the interference intensity. A user density change rate, a cluster offset distance and an interference intensity threshold are set, sound field reconstruction is triggered in real time, and partition lag of a traditional scheme is avoided. The Bluetooth array is controlled to switch narrow beam directional transmission, and a multi-user priority arbitration model is combined, so that the concurrent bearing capacity of the system is improved. A wireless sound box group cooperative control scheme integrating dynamic sound field adaptation, high-concurrency instruction scheduling, anti-interference transmission and cross-brand compatibility is realized.

The invention belongs to the technical field of display, and provides a compensation circuit of a display device, a control method and the display device. The compensation circuit comprises a data receiving module, a judgment module, a data compensation module and a data transmission module which are connected in sequence; the data receiving module is used for receiving a data signal sent by the main control module; the judgment module is used for determining that an absolute value of a gray scale change value between a first pixel row and an adjacent second pixel row is greater than or equal to a preset gray scale value based on the data signal; the data compensation module is used for acquiring a digital signal correction value corresponding to the gray scale change value from a preset comparison table as a digital signal coding value of a second pixel row; and the data transmission module is used for outputting the digital signal coding value of the second pixel row to the driving circuit. The interference phenomenon can be recognized in advance, and the corresponding digital signal correction value is obtained, so that the horizontal crosstalk phenomenon is eliminated, and the quality of a display picture is improved.