605 results about "Noise generation" patented technology

The invention discloses a combined heat and power generation system control strategy based on an AME-TD3 algorithm, and belongs to the technical field of combined heat and power generation system optimization control. Comprising the following steps: S1, collecting system parameters and initializing a CHP running state; s2, when a target # imgabs0 # value is calculated, an entropy reward mechanism is introduced; s3, realizing exploration and utilization of an adaptive noise adjustment mechanism and a dynamic balance strategy based on Critic network evaluation; and S4, optimizing the control strategy in real time. Aiming at the problem that an existing TD3 algorithm is insufficient in exploratory performance, an entropy correction item is introduced into calculation of a target # imgabs1 # value, structural correction is conducted on a target value function, strategy updating is more efficient, and the effectiveness of overall strategy optimization is improved; aiming at the problem that random noise in a traditional TD3 algorithm cannot adapt to a complex environment, a dynamic self-adjusting noise generation function is added in a strategy updating process, so that the convergence speed is increased, the stability is enhanced, and the self-adaptive adjustment capability of a system to load fluctuation and environmental condition change is enhanced. The method has good expandability.

The invention discloses a first view angle video generation method and device based on a mask diffusion model and fixation point constraint, and the method comprises the steps: constructing an end-to-end deep learning frame for the demands of video filling, prediction and visual attention region control in the generation of a first view angle video; the diversified first-view-angle video generation conforming to the visual logic is realized. The method comprises the following steps: firstly, dividing an input video into a condition frame set and an unknown frame set, and adding random noise to an unknown frame by using a dynamic mask module I to generate a noisized frame; performing reverse de-noising generation on the video through a full 3D convolutional neural network module II, and guiding the network to generate video content conforming to a space-time law by taking a diffusion step and a fixation point track as conditional constraints; and finally, saliency prediction is carried out by using a fixation point positioning module III. By jointly optimizing the loss of the reverse denoising generation process and the loss of the fixation point probability graph, the reasonability and diversity of the generated video are further improved. According to the method, through joint optimization of the mask diffusion strategy and fixation point constraint, the space-time continuity, the anti-noise capability and the adaptability to the fixation point trajectory of the generated video can be effectively improved, and the method is particularly suitable for a complex multi-face expression interaction scene.

The invention provides a building LOD2 model diffusion generation method and system based on multi-modal feature constraints, and belongs to the field of remote sensing image processing. According to the method, a three-dimensional polygon noise generation module MM2P-Init and a multi-modal feature constraint module MM2D-Control are mainly utilized to construct a diffusion model MMP-DiffNet, a noise reduction generation process from three-dimensional polygon noise to a building roof structure is realized, the influence of extraction precision of low-dimensional features such as points and lines on a building LOD2 model topology reconstruction process is reduced, and the construction efficiency is improved. And the precision of building LOD2 model construction by the satellite image is improved.

The embodiment of the invention provides a robot control method and device, electronic equipment and a storage medium, belongs to the technical field of robots, and is applied to financial and medical scenes. The method comprises the steps of obtaining a current environment image and a current time stamp of an environment where the robot is located; generating noise according to a preset noise generation rule to obtain current noise; performing instruction coding according to a preset target task instruction, the current environment image and the current time stamp to obtain a target instruction code; performing noise fusion on the target instruction code according to the current noise to obtain a current fusion code; performing noise prediction on the current fusion code according to a preset target noise prediction model to obtain target prediction noise; performing instruction denoising on the current fusion code according to the target prediction noise to obtain a target execution instruction; and controlling the robot to execute actions according to the target execution instruction. According to the embodiment of the invention, the robot instruction can be restored from an uncertain state to an executable clear instruction.

The invention relates to a wind noise modeling method and system based on machine learning and application, and belongs to the field of marine acoustics and environmental noise modeling, and the method comprises the steps of data preprocessing and feature extraction, hybrid network model building, hybrid network model training and verification. According to the method, a hybrid network model of multiple linear regression and a multi-layer perceptron is constructed based on a known physical mechanism of wind noise and two main noise generation mechanisms of surface turbulence and bubble oscillation, a linear relation and a non-linear relation are modeled respectively, outputs of the two models are integrated through a weighted fusion strategy, and a multi-layer perceptron model is constructed. Smooth transition modeling from a low-wind-speed linear relation to a high-wind-speed nonlinear relation is achieved.

The invention discloses an anisotropic noise generation method based on local tensor integral field feature modulation, and is applied to the technical field of computer texture generation. The method comprises the following steps: step 1, constructing a global tensor field of spatial anisotropy intensity and direction; step 2, calculating local tensor integral features in a support domain based on the support domain of a Gabor noise kernel function, the local tensor integral features including principal direction features and anisotropic ratio features; step 3, calculating a curvature penalty factor based on the deviation between the local tensor integral feature and the center tensor of the seed point; step 4, based on the local tensor integral features, performing weighted correction on the frequency domain center frequency and Gaussian envelope parameters of the Gabor kernel function; and step 5, generating a final noise texture based on the corrected kernel function. The Gabor kernel function parameter is subjected to weighted correction through the local tensor integral feature and the curvature penalty factor, modulation of the kernel function direction under the high-curvature tensor field is achieved, spectrum leakage, texture fracture and artifacts caused by inconsistent direction changes in the kernel function can be reduced, and the robustness of the kernel function is improved. Therefore, the topological continuity and the simulation fidelity of the anisotropic noise texture at the complex structure are improved.

A door lock for a vehicle includes a rotary latch for form-fittingly holding a locking element, a blocking mechanism for blocking the rotary latch from releasing, and a wedge system having a wedge lever and a connection piece, which can be brought into a self-locking contact position in order to reduce a relative movement between the locking element and the rotary latch. The blocking mechanism contacts a circumference of an output lever via a circular-arc-shaped circumferential segment so that, when the blocking mechanism moves, the output lever is rotated by rolling on the circumferential segment. The output lever is coupled with a driving lever so that the rotation of the output lever during the opening movement of the blocking mechanism causes the driving lever to release the self-locking connection between the wedge lever and the connection piece.

The utility model relates to a multi-noise-reduction control box and a pillow using the same, which solve the problem that in the prior art, noise is generated by working of an air pump and airflow driven by the air pump to bring adverse effects to a user, and adopts the technical scheme that the multi-noise-reduction control box comprises a shell, the air pump arranged in the shell and a circuit board used for controlling the air pump to work, the utility model relates to a noise reduction device, in particular to a noise reduction device which comprises an outer shell, an air pump and an air path mechanism connected with the air pump, and is characterized in that an inner shell is arranged in an inner cavity of the outer shell, the outer shell is connected with the inner shell in a vibration reduction mode, the air pump is arranged in the inner cavity of the inner shell and hung on the top wall of the inner shell, and a noise reduction shell is arranged outside the air pump. The control box has the advantages that multiple noise reduction means such as a double-shell structure matched with vibration reduction and noise reduction are adopted, the air pump is hung, and the noise reduction shell covers the air pump are adopted, so that working vibration and working noise reduction of the control box are greatly reduced.

The invention relates to the technical field of noise evaluation, in particular to a self-ventilation motor fan aerodynamic noise simulation evaluation method. According to the technical scheme, the method comprises the steps of data acquisition and processing, deep learning model construction, simulation and optimization of a multi-physics coupling model and result fusion. According to the method, the hybrid deep learning model combining the convolutional neural network and the recurrent neural network is adopted, so that the noise prediction precision is remarkably improved, and the evaluation result is closer to the actual noise condition; a multi-physics coupling model is adopted to reflect the comprehensive influence of multiple factors on aerodynamic noise under actual working conditions, a noise generation mechanism is analyzed through a CFD model and an acoustic FEM model, a reliable physical basis is provided for noise evaluation, and errors are reduced; besides, the Bayesian fusion method is combined with the results of the deep learning model and the multi-physics field coupling model, the advantages of the two methods are comprehensively considered, the limitation of a single method is made up, and the reliability and stability of the evaluation result are further improved.

A low-noise brushless electric motor, comprising: a stator assembly comprising a base (101) and a winding stator (102), wherein the base (101) comprises an end cover (103) and a sleeve (104) formed on one side of the end cover (103), the winding stator (102) is arranged around the outer wall of the sleeve (104), the sleeve (104) is made of a metal material, and a first mounting groove (105) and a second mounting groove (106) that are spaced apart from each other are formed in the sleeve (104); a bearing assembly comprising a first bearing (301), a first limiting member and a second bearing (302), wherein the first bearing (301) is arranged in the first mounting groove (105) and is in clearance fit with a groove wall (110) of the first mounting groove (105), and the second bearing (302) is arranged in the second mounting groove (106) and is in clearance fit with a groove wall (112) of the second mounting groove (106); and a rotor assembly comprising a rotary shaft (201), a housing (204) fixed on the rotary shaft (201), and a plurality of magnetic steels (202) arranged on an inner wall of the housing (204), wherein the rotary shaft (201) passes through the second bearing (302) and the first bearing (301) and is connected to the first limiting member, the second bearing (302) is in limiting fit with the rotary shaft (201), and the first bearing (301) axially abuts against the first limiting member to be axially limited on the rotary shaft (201). The low-noise brushless electric motor can reduce bearing deformation and minimize noise generation.

The invention discloses a sound insulation and noise reduction water supply and drainage pipeline, and belongs to the technical field of water supply and drainage pipelines, the sound insulation and noise reduction water supply and drainage pipeline comprises a pipeline body and a connecting mechanism, the pipeline body comprises an outer pipe body, an inner pipe body, a supporting ring and a sealing ring, and an exhaust mechanism is arranged at the top of the outer pipe body and comprises an exhaust pipe, a sealing cover and a one-way valve; the two ends of the outer side of the outer pipe body are fixedly sleeved with fixing rings. The connecting mechanism comprises a front connecting base, a rear connecting base, a connecting frame, a fixing frame and a plug pin. The interlayer space between the inner pipe body and the outer pipe body is vacuumized and reliably sealed, the transmission path of sound in the structure is effectively cut off, outward transmission of noise generated by water flow in the pipe and vibration of the pipe is remarkably blocked in the vacuum state, and the overall sound insulation performance is greatly improved; the core measure is supplemented with the design of the supporting ring and the elastic sealing ring, vibration buffering is provided at a key connecting point, energy is absorbed and dissipated, and excellent environmental noise control is comprehensively achieved.

The invention relates to a monitoring and early warning system for preventing teenager myopia, which captures teenager eye using behavior characteristics in real time in a dynamic environment and accurately recognizes an abnormal state through cooperative work of multiple modules, and eliminates space-time dislocation interference among equipment by using three-dimensional topology modeling, so that the system can be used for preventing teenager myopia. The double-frequency attention mechanism effectively separates eye physiological signals and environmental noise, the electromagnetic constraint noise generation technology restores a real interference scene, the gradient coupling mechanism continuously optimizes the equipment relation network, finally high-precision eye use behavior recognition is achieved, early warning is conducted on myopia inducements such as short-distance eye use overtime and illumination discomfort, and the myopia identification accuracy is improved. Through a personalized intervention scheme, the false alarm rate is remarkably reduced, the user compliance is improved, the myopia development speed of teenagers is effectively delayed, and a'monitoring-early warning-intervention 'closed-loop prevention and control system is formed.

The utility model discloses an air duct structure and an air curtain machine. The air curtain machine comprises a shell, an air duct structure and a wind wheel structure. The shell is provided with an air inlet and a wind wheel chamber, and the air inlet is communicated with the wind wheel chamber. The air duct structure is provided with an air inlet end and an air outlet end, and the air inlet end communicates with the wind wheel chamber; the air duct structure comprises two air duct side plates which are arranged in a spaced mode. The air duct side plate comprises a protruding part and two connecting parts, the connecting parts are fixed relative to the shell, the protruding part is arranged between the two connecting parts, the protruding part protrudes towards the inner side of the air duct structure, and the protruding part and the connecting parts are in arc smooth transition. The wind wheel structure is rotationally installed in the wind wheel chamber and used for driving air to flow from the air inlet to the air duct structure. According to the air duct side plate, by arranging the protruding parts, air can be guided, transition of air flow is smoother, the air can be prevented from directly colliding with the inner side wall of the air duct side plate, after collision is reduced, vortex generation can be restrained, and therefore noise generation can be reduced.

The invention provides a privacy protection noise generation method based on black box adversarial samples, and relates to the technical field of noise generation. Comprising the steps of constructing a voice data set; randomly generating initial white noise data; superposing the initial white noise data and target voice in the voice data set to obtain a superposed voice data set; performing data amplification on the superposed voice data set to obtain an amplified data set; inputting the amplified data set into a local white-box speech recognition model to obtain final white noise data; performing noise amplification on the final white noise data, and superposing the final white noise data with the voice data set to obtain a multi-intensity noise-added voice data set; and performing fine tuning training on the local white box model by using the multi-intensity noise-added voice data set to obtain a final noise generation model so as to generate final privacy protection noise. The technical problem that interference noise cannot be optimized based on an adversarial sample technology when the black box model parameters and architecture cannot be obtained and only the final recognition result can be obtained in the prior art is solved.

The utility model relates to a multi-noise-reduction control box and a pillow using the same, which solve the problem in the prior art that normal use is affected by loud noise generated when an air bag in the pillow is inflated or deflated, and adopt the technical scheme that the multi-noise-reduction control box comprises a shell and an air pump arranged in the shell, the noise reduction device comprises an air pump, a circuit board used for controlling the air pump to work and an air path mechanism connected with the air pump, and is characterized by further comprising a noise reduction pump shell, the air pump is arranged in the noise reduction pump shell, and the noise reduction pump shell is used for isolating noise generated by the air pump to achieve the purpose of noise reduction of the air pump. The noise-reduction air pump has the technical effects that the air pump mainly generating vibration and noise is arranged in the noise-reduction pump shell, so that the purpose of greatly reducing the noise of the control box is achieved, components easily generating vibration and / or noise are arranged in the second shell, the second shell mainly plays a role in sound insulation and noise reduction, and the noise-reduction effect is achieved. And vibration and noise transmitted to the first shell are reduced, so that vibration and noise generated when the whole control box works are reduced, and the purpose of multiple noise reduction is achieved.

The utility model relates to the technical field of central air conditioners, and discloses a central air conditioner air outlet device with a noise reduction function, which comprises a mounting frame and a mounting piece, and a noise reduction mechanism is arranged on the side surface of the mounting frame; the noise reduction mechanism comprises a fixing sleeve. When vortex is generated in the air outlet of the central air conditioner and noise is large, a servo motor is started to drive a first connecting rod to rotate, drive a first gear to rotate, drive a rack belt to rotate and drive a second gear and a second connecting rod to rotate; a first adjusting plate and a second adjusting plate which are mounted on the side faces of a first connecting rod and a second connecting rod are driven to conduct angle deflection, the flowing direction of cold air above an air outlet is adjusted, then vortexes are reduced or damaged, noise is reduced or eliminated, a small part of noise can be absorbed through sound absorption cotton, noise generation is reduced again, and the noise reduction effect is improved. The problem that noise of an air outlet is large due to the internal vortex effect of a traditional central air conditioner can be solved, and the practicability and the use scene of the central air conditioner are improved.

This utility model belongs to the technical field of sewage treatment equipment, and provides an open channel ultraviolet disinfection device, including a mounting plate, a disinfection box, a cleaning frame, brushes, connecting ropes, and a drive mechanism. The mounting plate has multiple vertically penetrating and parallel strip-shaped mounting holes, and through holes are respectively opened at the four corners of the mounting plate. The lower end of the disinfection box passes through the corresponding strip-shaped mounting holes. The disinfection box contains multiple ultraviolet lamps. The cleaning frame is vertically movable and positioned below the mounting plate. The brushes are connected to the cleaning frame, and one end of the connecting rope passes through the corresponding through hole and connects to the cleaning frame. This utility model uses a drive mechanism to move the connecting ropes to achieve the lifting and lowering of the cleaning frame, thereby cleaning the lower end of the disinfection box. Because there are four connecting ropes, the cleaning frame is evenly stressed when the drive mechanism drives the connecting ropes, preventing the cleaning frame from tilting and ensuring stable lifting and lowering operation, thus reducing noise generation.

According to the shell module, the examination couch and the scanning equipment, the shell module comprises a shell assembly and a sliding rail assembly, the shell assembly comprises a plurality of shells, the multiple shells are sequentially arranged in a sleeving mode, and any two adjacent shells in the multiple shells are in sliding connection through the sliding rail assembly in the vertical direction. In other words, the shell assembly can guide the movement of the two adjacent shells in the vertical direction through the sliding rail assembly, so that the shell assembly can only move in the vertical direction. In this way, the situation that in the movement process of the whole shell module, due to the fact that the shell modules are subjected to external force, the shells between different layers rub against one another, noise, abnormal sounds or jamming are generated is avoided, and the use experience of the examining table with the shell module is improved.

The invention provides an indoor unit and an air conditioner. The indoor unit comprises a shell; the air port assembly is arranged at the air port, and the air port assembly is provided with an indoor communication port and a fan communication port; and the air guide plate is arranged in the air port assembly, and the air guide plate can guide air flow of the fan communication port to the indoor communication port. According to the indoor unit and the air conditioner, the air deflector in the air opening assembly is utilized, the air opening communicating opening of the air opening assembly communicates with the air outlet of the draught fan, so that air outlet airflow of the draught fan flows to the indoor communicating opening through the draught fan communicating opening, meanwhile, the air deflector can guide the part of air outlet airflow, and the air outlet airflow is more uniform. According to the indoor unit, turbulent flow is prevented from being generated in the air port assembly, the problem that noise is generated due to the turbulent flow in the prior art is effectively solved, it can be guaranteed that all the air outlet airflow can be smoothly fed into a room, and the working efficiency of the indoor unit is effectively improved.

The application provides a flow control method based on three-curved-surface fish scale bionic structure, comprising the following steps: S1, constructing a main structure of an impeller blade, including a suction surface e and a pressure surface f, and fish scale areas g with multiple fish scale bionic structure coupling elements arranged regularly are arranged on the suction surface e and the pressure surface f; S2, constructing and designing a single fish scale bionic structure coupling element, including a bottom surface adhering to a blade surface, a top surface in a fish scale structure, and a rear side cylindrical surface; the top surface comprises two groups of parallel fold surfaces, and each group of fold surfaces is composed of three quadrilateral surfaces; a space rectangular coordinate system is established with a front end point of the bottom surface as an origin, and the fish scale bionic structure coupling element is constructed in the space rectangular coordinate system; and S3, establishing multiple fish scale bionic structure arrangement rules. The application can improve the fluid flow characteristics of the blade surface and reduce noise generation based on the control of flow by bionic structure.

The invention discloses a joint active noise reduction device and an active noise reduction method, and relates to the technical field of active noise reduction, the joint active noise reduction device comprises a joint shell part, and the joint shell part is fixedly provided with a vibration monitoring module through strong glue or a strong magnetic block; a feedback adjusting module, an information processing and analyzing module and an active noise reduction executing module are arranged on a shell of the joint, and the output end of the vibration monitoring module and the output end of the feedback adjusting module are electrically connected with the input end of the information processing and analyzing module through shielding cables. The output end of the information processing and analysis module is electrically connected with the input end of the active noise reduction execution module through a shielding cable, the device is provided with the active noise reduction execution module and the vibration monitoring module to intervene vibration and noise of the joint, noise generation can be reduced from the source, and compared with a traditional passive noise reduction method, the noise reduction effect is remarkably improved.

A dynamically controlled cargo loading system for an aircraft includes electrical cargo conveying devices for conveying cargo items on a cargo loading deck; speed sensors, which are configured to capture current conveying speeds of the cargo conveying devices and / or the conveyed cargo items; electrical measuring devices, which are configured to capture current electrical parameters of the cargo conveying devices; and a control device which is configured to control the cargo conveying devices depending on the captured current conveying speeds and / or the recoded current electrical parameters such that at least one of the following variables is optimized: the electrical power consumption of the cargo conveying devices, the mechanical wear of the cargo conveying devices, the mechanical load action on the cargo items, the conveying time of the cargo items and the noise generation during the conveying of the cargo items.

Provided in the present application is an electronic expansion valve, comprising a valve tube, a valve seat portion, a nut structure, a valve needle structure and a hollow noise reduction column, wherein the valve seat portion is connected to one end of the valve tube, and the valve seat portion is provided with a valve port; at least part of the nut structure is located in the valve tube, and the nut structure is fixedly connected to the valve seat portion; the valve needle structure movably passes through the nut structure to open and close the electronic expansion valve and regulate the degree of opening of the valve port; one end of the noise reduction column is in limiting fit with the valve seat portion, the other end of the noise reduction column is in limiting fit with the nut structure, and the noise reduction column is arranged around the valve port and the valve needle structure. The nut structure is provided with a communicating channel; the communicating channel communicates cavities inside and outside the noise reduction column to discharge impurities in fluid that remain in the noise reduction column. When the fluid flows through the noise reduction column, the noise reduction column breaks down air bubbles in the fluid for noise reduction. The communicating channel enables impurities inside the noise reduction column to be discharged out of the noise reduction column. The present solution solves the problem of the generation of noise during use of the electronic expansion valve, and avoids impurity blockage.

The expansion valve comprises a valve body assembly, a switch piece and a silencing assembly, the valve body assembly is provided with a valve port, a first side and a second side, and the valve port is located between the first side and the second side and communicates with the first side and the second side; the switch piece and the noise reduction assembly are arranged on the first side and / or the second side, the noise reduction assembly is connected to the valve body assembly, a channel is formed between the noise reduction assembly and the valve body assembly, the noise reduction assembly is provided with a porous noise reduction part, the switch piece is movably located between the noise reduction assembly and the valve port, and a first flow channel is formed between the switch piece and the valve body assembly; when the flowing direction of the working medium is from the valve port to the silencing assembly, the porous silencing part is closed by the switch piece; and when the flowing direction of the working medium is from the silencing assembly to the valve port, the porous silencing part is opened. According to the expansion valve, the problems that a refrigerant flowing through the valve port is prone to cavitation to generate noise, and bubbles are prone to being generated in the refrigerant before flowing through the valve port to generate noise can be solved.

The present invention addresses the problem of providing a film including an aliphatic polyester, the film being excellent in terms of processability, biodegradability, and freedom from noise generation and suitable for use in packaging applications and agricultural, forestry, and fishery applications. The film including an aliphatic polyester is an aliphatic polyester film which has at least one loss tangent peak in a range of -30°C to 30°C exclusive and in which, when a maximum loss tangent peak value in the range of -30°C to 30°C exclusive is expressed by tanδ(A) and a loss tangent at 30°C is expressed by tanδ(30A), the tanδ(A) and the tanδ(30A) satisfy expression (1). Expression (1): tanδ(A) / tanδ(30A)≥1.05

The utility model relates to the technical field of magnetic core processing, in particular to a material pushing mechanism for magnetic core processing. The magnetic core machining pushing mechanism comprises a base, a connecting frame, a conveying belt, fixing plates, guide rods, springs, a pushing plate and the like, the connecting frame is slidably connected into the base, the fixing plates distributed front and back are fixedly connected to the top of the connecting frame, the conveying belt is rotatably connected to the outer portion of the connecting frame, and the pushing plate is slidably placed between the two fixing plates. The right side of the push plate is fixedly connected with symmetrically-distributed guide rods, the fixing plate is in sliding connection with the transversely-aligned guide rods, the guide rods are sleeved with springs used for assisting resetting, and the two ends of the springs are connected with the fixing plate and the guide rods respectively. The conveying belt is arranged to place the magnetic core, the magnetic core is pushed into the positioning mechanism of the machining equipment, the magnetic core can be prevented from being directly contacted with the base to be abraded, the integrity of the surface of the magnetic core is protected, noise can be prevented, and noise pollution in the working environment is reduced.

The invention relates to a remote sensing image reverse editing method for a diffusion model, and belongs to the field of computer vision. The strong generation and editing capability of the diffusion model brings a series of potential safety hazards, and the image reverse editing technology aims at adding a layer of protective noise to an image, so that the diffusion model is difficult to output an ideal editing result. In order to solve the problems that an existing anti-editing technology is poor in effect on a remote sensing image and generally faces low efficiency and obvious protection traces, the invention provides an efficient and hidden protection scheme which comprises the following three steps: step 1, generating anti-editing disturbance based on hidden space high-frequency component suppression; step 2, noise generation network training based on single-time forward transmission; and step 3, concealment enhancement based on noise perception graph constraint. The method can effectively resist malicious image editing based on a diffusion model, is suitable for the field of remote sensing images, and gives consideration to safety, efficiency and image quality.

Provided are a vehicle air conditioner and a control method thereof. The invention discloses a vehicle air conditioner and a control method thereof. When a mode of closing a specific door is changed, a problem of noise generation caused by a door gap and a blower pressure of a blower device can be solved. An air conditioning device for a vehicle according to the present invention comprises: an air conditioning case having an air flow path formed therein and provided with a plurality of air discharge ports; a cooling heat exchanger and a heating heat exchanger provided in the air flow path of the air-conditioning case; a blower device provided with a blower for blowing air into the air conditioner case; a plurality of mode doors for adjusting the opening degree of the air outlet; and a control unit that controls the driving of the mode doors, and when the air-conditioning mode is changed so as to close at least one mode door, the control unit changes the air-conditioning mode after reducing the air volume of the blower.

This invention provides a technology that reduces or cancels out the noise of massage devices using a different approach than conventional methods. [Solution] The massage device 100 comprises a sound signal output unit 21 and a speaker 3. The sound signal output unit 21 outputs an output sound signal that includes a suppression sound signal that weakens or cancels out noise generated from the device 100. The speaker 3 converts the output sound signal into sound and outputs the sound. The sound signal output unit 21 has a sound selection unit 211. Based on the noise generation conditions, the sound selection unit 211 selects a suppression sound signal from among a plurality of recorded sound signals pre-recorded as sound information 11 stored in the storage unit 1,902.

The application discloses a kind of class imbalance table data processing methods based on contrast constraint diffusion generation, belong to data processing technical field, it includes using binary classification table dataset to generate model training, obtain the generation model based on noise generation minority class's synthetic latent representation, generate model is randomly generated with several noise inputs, diffusion modeling branch is denoised to each noise and obtains the synthetic latent representation of minority class of each noise, using decoding module is decoded to each synthetic latent representation, obtains synthetic table sample;Data filtering is carried out to all synthetic table samples, then all synthetic table samples after filtering are merged with table dataset, and enhanced imbalance table data are obtained.The application introduces contrast learning branch in the process of generating minority class sample, effectively overcome the deficiency existing in class imbalance table data processing of existing oversampling method and general generation model.