232results about How to "Improve noise" patented technology

The invention discloses a data prediction method based on a kernel regression primary function Bayesian dynamic linear model, and belongs to the technical field of bridge structure health prediction. A to-be-analyzed bridge is detected by using a structural health monitoring system (SHM), and a time series dynamic model KR-BDLM of a Bayesian dynamic linear model is established to describe a bridge structure strain response changing along with time, so that bridge structure health monitoring data prediction and missing value filling are realized; performing parameter optimization reasoning on parameters of the KR-BDLM model by adopting a maximum likelihood algorithm; providing a time-varying state parameter and an observation prediction value of a bridge structure through the optimized KR-BDLM model, and further realizing SHM monitoring data single-step prediction; and multi-step prediction is carried out on the basis of single-step prediction, so that longer-time prediction of bridge data is realized. The prediction result is high in precision, the engineering structure safety can be effectively guaranteed, and the leading-edge development of the structure health monitoring field is promoted.

The invention discloses a three-dimensional color modeling method and system based on multi-sensor fusion, and the method comprises the steps: obtaining monocular vision pose information, an RGB image and radar three-dimensional point cloud information, enabling the monocular vision pose information to be used for correcting a radar pose, and generating corrected point cloud information; the corrected point cloud information is screened and then projected to a specific plane; proper feature points are extracted from the projection image and the RGB image, and according to the corresponding relation between the feature points of the projection image and the RGB image, the plane point cloud of the projection image and the pixel coordinate plane of the RGB image are registered; performing fusion modeling on the point cloud and the image data by using an MRF model; according to the method, the radar pose is corrected by using visual pose information, the accumulated error influence of a system is reduced, the corrected point cloud is projected to a plane, and feature points of a projection image and a color image are extracted to establish an MRF model for describing the relationship between a pixel plane and the corresponding point cloud, so that a point cloud image which is uniformly distributed in space and contains color information is obtained.

The invention relates to the technical field of computer aided design, in particular to a fan model generation method and system. The method comprises the following steps: acquiring basic design parameters and constraint conditions of a fan, and performing fan model simulation generation and aerodynamics analogue simulation to generate aerodynamics simulation fields corresponding to different fan models; performing fan blade power curvature and airflow vibration evaluation analysis on the aerodynamic simulation fields corresponding to the different fan models, and performing fan airflow efficiency calculation at the same time to obtain fan air flow efficiency corresponding to the different fan models; performing operation acoustic noise evaluation analysis and performance curve simulation analysis on the corresponding fan three-dimensional models to generate airflow efficiency-noise performance curves corresponding to different fan models; a fan optimization model is generated by obtaining a corresponding fan constraint optimization target and performing time sequence energy efficiency ratio optimization design. The design effect and efficiency of the fan model can be improved.

The invention discloses a non-cooperative underwater sound pulse signal detection method based on power-w and fractional order spectral entropy. The method comprises the following steps: performing fractional order Fourier transform on a received non-cooperative underwater sound pulse signal; the optimal order p of fractional Fourier transform is found through a traversal method; performing v-th power processing on the energy of the frequency domain signal after the p-order fractional order Fourier transform to obtain an improved fractional order power spectrum; performing normalization processing on the improved fractional order power spectrum E, and calculating an entropy value T corresponding to the data; calculating an entropy value of the background noise, taking the entropy value as a fixed threshold value, comparing the fixed threshold value with the entropy value obtained by calculation, and if the fixed threshold value is greater than the entropy value obtained by calculation, judging that there is a signal; otherwise, no signal exists. According to the method, the detection effect can still keep excellent under the condition of low signal-to-noise ratio, and the robustness is higher.

The invention discloses a dual-channel millimeter wave transmitter, a receiver and a transceiver system. The transmitter comprises a baseband signal processing circuit, a local oscillator signal processing circuit and a radio frequency front-end circuit comprising a high-frequency channel power amplifier, a low-frequency channel power amplifier and a signal synthesis switching circuit. The radio frequency front-end circuit selectively outputs signals of a high-frequency channel or a low-frequency channel through the signal synthesis switching circuit, and a current adjusting circuit is arranged in the baseband signal processing circuit and used for adjusting mismatch of a switching tube in the mixer. The disclosure also provides a dual-channel millimeter wave receiver and transceiver system based on the same concept. According to the invention, the problem of performance bottleneck of a single-channel transceiver in broadband application is solved, the system linearity is improved, the processing capability of high-order modulation signals is improved, and high power efficiency and high integration level are maintained through optimized circuit design.

The invention discloses an oblique flow impeller, a fan and ventilation equipment, the oblique flow impeller comprises a bottom plate, a top plate and a plurality of blades, and the bottom plate is used for being connected with a driving motor; the top plate is provided with an air inlet; an air inlet is formed in the top plate, the multiple blades are connected between the bottom plate and the top plate and arranged around the axis of the air inlet, an air outlet is formed between the bottom plate and the top plate, in the axial direction of the air inlet, the diameters of circumferences defined by the blades are different, and the outer diameter of the bottom plate is smaller than that of the top plate. According to the technical scheme, efficiency can be improved, and noise is reduced.

The invention discloses a steel wear-resistant material service life prediction method and system based on machine learning, and relates to the technical field of material detection, and the method comprises the steps: collecting historical operation data of a steel wear-resistant material, carrying out the normalization processing of the historical operation data, obtaining normalized feature data, and carrying out the prediction of the service life of the steel wear-resistant material; dividing the normalized feature data into data sets in proportion; constructing a first model based on the data set; constructing a second model, and training the second model by taking prediction errors of the first model on the data set under different parameter combinations as input; and updating the first model according to the optimal parameter combination output by the second model, and inputting the data set into the updated first model to obtain a service life prediction result of the steel wear-resistant material. According to the method, the optimal parameter combination is obtained through mutual optimization of the two models, so that the prediction accuracy and adaptability are improved, and the service life prediction result has higher practical application value.

The invention belongs to the technical field related to robot visual target detection, and discloses a ceramic component surface defect detection method and device, and the method comprises the steps: (1) obtaining surface picture data of a ceramic component, marking defects in a picture to construct a data set, and forming a training set through a part of the data set; (2) replacing a backbone feature extraction network Backbone of the YOLOv5 model with a Swinin-Transform network from a CSPDarknet, and setting a loss function of the YOLOv5 model as D-IoU loss at the same time, so as to obtain an improved YOLOv5 model; (3) training the improved YOLOv5 model by adopting the training set to obtain a final improved YOLOv5 model; and (4) inputting a picture of a to-be-detected ceramic component into the final improved YOLOv5 model, and outputting a defect detection result of the to-be-detected ceramic component by the final improved YOLOv5 model. According to the invention, real-time detection is realized.

The invention discloses a rainstorm disaster event argument extraction method and device based on event text enhancement, and the method comprises the steps: constructing a rainstorm disaster event template, and defining an event type and an argument role; extracting data related to the rainstorm disaster from the microblog platform; preprocessing the data; labeling the preprocessed data to obtain a data set; generating a problem template; performing event text enhancement; integrating the problem template and the enhanced event text as model input; encoding the integrated text by using a pre-trained Chine-BERT-WWM model, and obtaining a hidden layer representation; deep features are extracted through an intermediate linear layer, and starting and ending positions of an input sequence are predicted by using a full connection layer; according to the method, the rich MRC data set can be directly utilized to enhance event extraction, the problem of data scarcity is relieved, and possibility is provided for zero sample event extraction of invisible event types.

The invention relates to the technical field of rubber materials, in particular to a preparation method and application of a fiber-doped rubber material. The preparation method comprises the following steps: plastifying a polyurethane composite material at 100-120 DEG C for 3-5 minutes, adding nitrile rubber, and plastifying for 3-5 minutes to obtain plastified rubber; adding carbon black, a plasticizer, sulfur, an accelerant, metal fibers, zinc oxide and an anti-aging agent into the plasticated rubber, and mixing to obtain mixed rubber; calendaring and molding the rubber compound to obtain the rubber material. The rubber material prepared by the invention not only has excellent mechanical properties and wear resistance, but also has excellent aging resistance, and can be applied to a preparation process of a composite silencing plate, so that the silencing and damping performance of the composite silencing plate is improved.

The invention provides a robot force control method based on RBF (Radial Basis Function) neural network rigidity prediction and reinforcement learning, and the method comprises the following specific steps: firstly, collecting the empirical data of robot force tracking through a plurality of groups of PD (Proportional-Digital) control; then, fitting an environmental dynamics model of reinforcement learning by using the empirical data; in order to accelerate the convergence speed of reinforcement learning, fitting the rigidity of the contact environment by adopting an RBF neural network and predicting the environment rigidity, and combining the predicted environment rigidity with a Gaussian model to obtain an environment rigidity selection probability; and finally, according to the environment rigidity selection probability, the selection probability of a P parameter in PD control parameters is corrected in combination with a rigidity model, so that the action selection probability in reinforcement learning is improved, and the optimal parameter of robot force control is quickly found.

The invention relates to the technical field of image communication, in particular to an image processing system and method based on an FPGA, and the system comprises a data stream synchronization module which obtains a video frame and a timestamp through the FPGA; in the invention, the data stream synchronization ensures the matching of the video frame and the timestamp, the stability of the video stream is optimized, the image error caused by time dislocation is reduced, and the accuracy of video analysis is improved. And the transmission priority of the data packet is dynamically set, and the transmission strategy is adjusted according to the importance of the content, so that bandwidth resources are effectively utilized, the priority transmission of key information is ensured, and the overall efficiency and response speed of network transmission are improved. According to the adaptive coding, the coding bit rate and frame rate are dynamically adjusted according to the network condition, the adaptability of the data stream to different network conditions is optimized, and the balance between the video quality and the transmission efficiency is kept. Through the enhancement of image brightness, contrast adjustment and noise suppression, the image quality in a low-light environment is improved, and the availability and viewing experience of the image are improved.

The invention discloses a silencer, a silencer assembly and a server, which are applied to the technical field of silencer structures and used for solving the problem that noise affects the performance of a mechanical hard disk, and the silencer comprises a shell which comprises a first cylinder body and a hollow cylinder bottom arranged at one end of the first cylinder body; the inner shell comprises a second barrel and a sound cavity wall arranged on the periphery of the second barrel, and a through hole penetrating through the wall thickness of the second barrel is formed in the second barrel; the base is connected with at least one of the first barrel and the second barrel and located at the end, away from the barrel bottom, of the silencer; the inner shell is arranged in the outer shell, the end, away from the cylinder bottom, of the outer shell is connected with the inner shell, the sound cavity wall is attached to the inner wall of the outer shell, and a noise reduction cavity is formed in the space between the inner shell and the outer shell. Noise generated by rotation of the fan enters the noise reduction cavity through the inner hole of the inner shell to be consumed, the noise of the fan can be optimized through the silencer, and the influence of the noise on the performance of the mechanical hard disk is reduced.

The present application provides an amplifier circuit and a radio frequency chip, wherein the amplifier circuit may include: a low noise amplifier, a first feedback circuit, and a load impedance circuit; the first end of the load impedance circuit is coupled to the first output end of the low noise amplifier, and the second end of the load impedance circuit is coupled to the second output end of the low noise amplifier, wherein the load impedance circuit may include a plurality of resonance circuits in parallel, each resonance circuit covering a different frequency band; the first feedback circuit includes a first capacitor and a second capacitor; the first end of the first capacitor is coupled to the first output end, and the second end of the first capacitor is coupled to the first input end of the low noise amplifier; the first end of the second capacitor is coupled to the second output end, and the second end of the second capacitor is coupled to the second input end of the low noise amplifier. This is to improve the out-of-band suppression capability of the amplifier circuit, i.e., the anti-interference capability.

The application relates to the air conditioning technical field and discloses an indoor unit and an air conditioner. The indoor unit comprises a shell, an air duct formed in the shell, an air inlet and an air outlet, and the air duct is communicated between the air inlet and the air outlet; a heat exchanger located in the air duct; a cross-flow fan located in the air duct, the cross-flow fan comprising a motor; wherein a side wall of the air duct is provided with an exhaust passage communicated with the air duct, the shell is further provided with a heat dissipation passage, the heat dissipation passage is located outside the air duct and is communicated between the exhaust passage and the motor, and airflow in the air duct can flow to the motor through the exhaust passage and the heat dissipation passage. The airflow in the air duct has certain kinetic energy and temperature regulation, thereby providing continuous cooling effect for the motor, so that the heat dissipation efficiency of the motor is remarkably improved, and the service life of the motor is prolonged.

The application discloses a four-dimensional 4nQAM constellation shaping method and system, and belongs to the technical field of constellation shaping. The method comprises the following steps: taking a coordinate origin as a square center, according to a preset constellation point priority, expanding a to-be-shaped constellation point in a concentric square from an inner layer to an outer layer in progression to obtain a two-dimensional geometric shaping constellation; mapping the two two-dimensional geometric shaping constellations to a four-dimensional space in a quadrature manner to generate a four-dimensional geometric shaping constellation; initializing and layering the four-dimensional geometric shaping constellation to obtain independent bit streams of layers of the constellation; inputting the independent bit streams into a distribution matcher of a corresponding layer to perform probability distribution matching, and obtaining a constellation symbol index sequence of the layer; layering and mapping the constellation symbol index sequence according to different Hamming weights, and performing quadrant fusion with the four-dimensional geometric shaping constellation to obtain a four-dimensional probability shaping constellation. The application not only realizes flexible construction of a 4n-order constellation, but also can adaptively adjust a constellation structure according to different application requirements.

A refrigerating system with an anti-vibration copper pipe connecting structure belongs to the technical field of refrigerating systems and comprises an anti-vibration welding type metal plate frame, a compressor, an exhaust pipe, a condenser, a condensate pipe, an evaporator and an air suction pipe, the condenser is connected with the compressor through the exhaust pipe, and the exhaust pipe is arranged at an exhaust outlet of the compressor; the evaporator is connected with the condenser through a condensate pipe. The compressor is connected with the evaporator through an air suction pipe. A refrigerant sequentially flows to the condenser and the evaporator from the compressor and then returns to the compressor, so that a refrigerating system is formed; the exhaust pipe is an anti-vibration copper pipe, and the design of the anti-vibration copper pipe is as follows: a large arc of 360 degrees + alpha or 720 degrees + alpha is additionally arranged according to the flowing direction of a refrigerant to guide the flowing of the refrigerant; refrigerant flow resistance is reduced, and vibration of system exhaust is reduced; the periphery of the anti-vibration copper pipe is sleeved with a heat-resisting vibration-reducing sleeve in series before welding, so that the vibration-reducing effect is achieved; the exhaust pipe has the advantages of being small in vibration, low in noise and small in refrigerant flow resistance.

The utility model discloses a stator and rotor punching sheet, a motor, a compressor and an air conditioner, and the stator and rotor punching sheet comprises a rotor punching sheet which is provided with a plurality of magnet grooves suitable for accommodating magnetic parts, and the plurality of magnet grooves are arranged at intervals in the circumferential direction of the rotor punching sheet; wherein the sum of the groove areas of the plurality of magnet grooves is S1, the outer diameter of the rotor punching sheet is D1, the number of poles of the rotor punching sheet is P, and # imgabs0 # is satisfied, and the stator and rotor punching sheet has the characteristic of high rotational inertia of a rotor according to the stator and rotor punching sheet disclosed by the embodiment of the invention, so that low-frequency stable operation is realized.

The invention belongs to the technical field of time-frequency analysis, and particularly relates to a rolling bearing fault method and system based on Riesz atlas sparse decomposition, which utilizes a new time-frequency analysis method-Riesz four-parameter spectrum time-frequency analysis method to obtain four-parameter information of amplitude, frequency, phase and direction of a vibration signal in a time-frequency domain. The time-frequency aggregation and the anti-noise performance of an analysis result are improved; in order to screen out an optimal parameter spectrum and expand the symbol dynamics entropy to a two-dimensional scale, a new entropy calculation method, namely cosine symbol dynamics entropy, is provided; and reconstructing components of the parameter spectrum obtained by entropy screening, and constructing a sparse filter parameter optimization component amplitude, so that a decomposition result has physical significance. The bearing vibration signal under the variable speed working condition and the bearing vibration signal under the constant speed are analyzed, the RSSD method is provided on the basis, and feature extraction and diagnosis of rolling bearing faults under the constant rotating speed working condition and the variable rotating speed working condition are achieved.

The invention belongs to the technical field of gravity dam topographic survey, and particularly relates to topographic survey equipment for concrete gravity dam modeling, which comprises a survey main body, a driving assembly arranged on the survey main body, a signal enhancement type earth surface pretreatment mechanism and a gravity compensation type self-adjusting survey mechanism, the signal enhanced earth surface preprocessing mechanism is arranged on one side of the lower end of the surveying main body, and the gravity compensation type self-adjusting surveying mechanism is arranged on the other side of the lower end of the surveying main body; according to the topographic survey equipment for concrete gravity dam modeling, signal attenuation and vegetation, especially vegetation containing a large amount of water, can be reduced through the signal enhancement type earth surface preprocessing mechanism, electromagnetic waves of a geological radar can be absorbed and attenuated, after the vegetation is cleaned, signal attenuation can be reduced, the penetration depth of radar signals can be increased, and therefore the effect of modeling of the concrete gravity dam is achieved. Therefore, the underground structure can be better detected.

The invention discloses an LVDS (Low Voltage Differential Signaling) receiving circuit with a wide common-mode input range. The LVDS receiving circuit comprises a common-mode conversion circuit, a main comparator circuit, a secondary comparison circuit and a logical judgment circuit, the common-mode conversion circuit is used for converting an external wide common-mode input differential signal into a signal with constant common-mode voltage and no attenuation of the differential signal; the main comparator circuit identifies the converted differential signal to complete differential-to-single-ended data conversion; the secondary comparator circuit is composed of two low-speed comparators; and the logic judgment circuit judges the output of the main comparator and the window comparator to ensure that the output of the input end of the circuit group is a constant level under the short circuit and disconnection conditions, so that the function of dynamic failure protection of the circuit is realized. The wide common-mode input circuit can realize discrimination of wide common-mode input signals ranging from-4V to 5V, and has a dynamic failure protection function.

The application discloses a kind of illegal access hardware identification and dynamic blocking method and device of bluetooth device, it is related to artificial intelligence technical field, the method includes the steady-state current response waveform and radio frequency IQ baseband signal of synchronous acquisition bluetooth device;Signal is preprocessed and respectively extracts cyclic stationary feature and joint time-frequency-cyclic feature;Adaptive multi-source feature fusion network of fusion channel and spatial attention is constructed, and classification is carried out in combination with double-branch convolution, protocol perception feature modulator and multi-scale hollow convolution pyramid.The application realizes multidimensional perception and cross-domain feature fusion of hardware fingerprint, enhances abnormal discrimination by protocol perception modulation, realizes the feature normalization of different working modes of same hardware and illegal equipment feature abnormal amplification, forms end-to-end active defense system from feature extraction to dynamic blocking.

The present disclosure relates to an axial flow fan blade, a fan assembly, an air conditioner outdoor unit and an air conditioner. The axial flow fan blade comprises a hub and a plurality of blades arranged on the outer side of the hub, each blade comprising a pressure surface and a suction surface arranged oppositely, each blade comprising a blade inner edge and a blade outer edge arranged oppositely, and each blade further comprising a blade leading edge and a blade trailing edge arranged oppositely. Each blade is divided into a first region, a second region and a third region in a circumferential direction. The first included angle of the first region, the second included angle of the second region and the third included angle of the third region are selected to be in a ratio of 1:1.25-1.9:1.25-1.9.

The invention discloses a low-slow small aircraft target reconnaissance and interference integrated device, and the device comprises a plurality of receiving and transmitting antennas which are used for obtaining a collection signal, and transmitting an interference signal after the signal amplification; the high-power switches are connected with the transceiving antennas in a one-to-one correspondence manner and are used for switching received and transmitted signals; the microwave transceiving unit is connected with the high-power switch and is used for acquiring the acquired signal and filtering the acquired signal; the signal processing unit is connected with the microwave transceiving unit and is used for processing the filtered acquisition signal to obtain a target signal and a trigger interference signal and transmitting the target signal and the trigger interference signal to the microwave transceiving unit; and the microwave power amplifier is connected with the microwave transceiving unit and the high-power switch and is used for amplifying the interference signal. Through the scheme, the device has the advantages of simple structure, high sensitivity, accuracy, reliability and the like, and has very high practical value and popularization value in the technical field of reconnaissance interference.

The invention relates to a brake booster device, which has a brake booster (10) mounted on a vehicle component (30) via a fastening device (50). According to the invention, the fastening device (50) has at least two fasteners (51; 52), wherein the first fastener (51) is firmly connected to the brake booster (10) and the second fastener (52) is firmly connected to the vehicle component (30). The two fasteners (51; 52) are connected to each other via at least one connecting element (60; 60'), which is deformed by shear stress when the brake booster (10) moves along the vehicle component (30). The two fasteners (51; 52) are slidably moved in a guide in a nested manner in the direction of the vehicle component (30), and each fastener has a recess (53; 54), wherein the recesses (53; 54) are flush with each other and a push rod (80) of a brake pedal is guided through the recess (53; 54).

The application discloses an acceleration sensor and a manufacturing method thereof. The acceleration sensor comprises a first capacitor, a second capacitor, a third capacitor and a fourth capacitor on a substrate. The first capacitor comprises a second detection mass and a first detection electrode. The second capacitor comprises a first detection mass and a first detection electrode. The third capacitor comprises a second detection mass and a second detection electrode. The fourth capacitor comprises a first detection mass and a second detection electrode. The first detection electrode and the second detection electrode are located between the first detection mass and the second detection mass and are independent of each other and located in the same plane. The application forms a full-bridge capacitor detection structure by the first detection mass, the second detection mass, the first detection electrode and the second detection electrode located between the first detection mass and the second detection mass, which can effectively reduce parasitic capacitance, optimize noise, improve stability and sensitivity.

The utility model relates to the technical field of humidifiers, in particular to a water storage mechanism and a humidifier. The water storage mechanism is used for the humidifier and comprises a water tank, a cover body and a water diversion assembly, and the water tank is provided with a containing cavity used for storing liquid; the cover body is assembled at the top of the water tank, covers the opening of the accommodating cavity and is provided with a water guide groove and a water guide port communicated with the water guide groove, the water guide groove is used for receiving liquid, and the water guide port is used for discharging the liquid in the water guide groove; the water diversion assembly is arranged in the accommodating cavity; the water diversion assembly comprises a water diversion face, the water diversion face is connected with the cavity wall of the containing cavity, and the water diversion face is configured to receive liquid flowing out of the water diversion opening and guide the liquid to flow to the cavity wall of the containing cavity. The water storage mechanism can solve the problem that large noise is generated when water drips from a high position to a low position, so that the user experience of using the humidifier is improved.

This utility model relates to a compressor mounting structure and a vehicle. The compressor mounting structure includes a compressor bracket, a compressor, and a vehicle housing frame. The compressor bracket includes a bracket body, a vibration damping bushing, and a flexible component. The bracket body includes a first sub-section and a second sub-section. The vibration damping bushing is disposed on the first sub-section and is used to connect to the compressor. The second sub-section has a mounting portion and is connected to a vehicle housing crossbar in the vehicle housing frame via a first fastener that mates with the mounting portion. The flexible component is disposed on the second sub-section, protruding from the second sub-section toward the compressor, and a gap is formed between the flexible component and the compressor. Using this compressor mounting structure can optimize the vibration and noise performance of the entire vehicle.

The utility model relates to the technical field of stator, concretely relates to a kind of noise reduction stator, motor and compressor;Wherein, noise reduction stator, including annular yoke and the alternate arrangement of continuation part and abutting portion on the outer periphery of annular yoke, abutting portion abuts to the inner side wall of shell;Continuation part is formed along the radial recess in the direction of departing from shell, and the corresponding central angle of continuation part is SA1;With the lowest point of continuation part recessing, the annular P formed by surrounding is reference, the distance of abutting portion to annular P is T1;Continuation part includes the first arc segment and second arc segment of connection, and the radius of first arc segment is RR1;The radius of second arc segment is RR2;The utility model limits the relationship between the corresponding central angle of continuation part in noise reduction nail, the distance of abutting portion to the lowest point of continuation part and the specific size between continuation part structure, to make noise reduction stator produce good effect in reducing electromagnetic noise.

This invention discloses a linked structure cavity for improving the SPL (Surface Placement) of musical glass, comprising an active device, a microwave cavity, a linked nano-cushion, and a metasurface crystal layer. The active device is disposed on the original glass, and a metasurface crystal layer is horizontally disposed on its end face away from the original glass. A ring-shaped microwave cavity is disposed between the metasurface crystal layer and the original glass, relative to the outside of the active device. The microwave cavity is spaced around the active device and forms a circular region with the metasurface crystal layer and the original glass. A linked nano-cushion is disposed between the metasurface crystal layer and the active device, and the linked nano-cushion and the microwave cavity are configured to not interfere with each other. This multi-dimensional combination of the linked nano-cushion, the microwave cavity, and the metasurface crystal layer forms a strong coupled planar sound field, improving the SPL value of the musical glass. This invention improves the SPL value of musical glass through the multi-dimensional combination of the microwave cavity, the linked nano-cushion, and the metasurface crystal layer.