17results about How to "Solve the noise" patented technology

The invention relates to the technical field of intelligent evaluation of garment flatness, and particularly discloses an automatic evaluation method of a non-ironing suit seam flatness grade, and the method comprises the steps: obtaining image data and physical parameter data of a seam region in response to a detection trigger signal of the seam region of a non-ironing suit; and performing key scale screening based on texture contribution degree on the image data, calculating a relevance index between feature distribution and flatness grade probability distribution under different texture scales, and determining the texture scale of which the relevance index meets a preset contribution degree condition as a target key scale. According to the method, the entropy screening mechanism based on the texture contribution degree is introduced, so that the key scale which is most effective for flatness representation can be locked from the multi-source data in a self-adaptive manner, and the refinement and pertinence of feature extraction are realized.

The present application relates to a method for extracting an acetabular facies lunata model, in particular to a method for extracting an acetabular facies lunata model based on mixed surface fitting, which solves the technical problem of low precision and robustness of the existing method for extracting an acetabular facies lunata model. The present application realizes rough extraction of the acetabular facies lunata model through spherical surface fitting, and then realizes accurate extraction of the acetabular facies lunata model in combination with ellipsoidal surface fitting, which combines the stability of spherical surface fitting and the anatomical fidelity of ellipsoidal surface fitting. In particular, in the case of complex pathologies such as hip dysplasia, the present application can still maintain high extraction accuracy, and improve the accuracy and reliability of clinical diagnosis and surgical planning. Meanwhile, in the iteration process of ellipsoidal surface fitting, an adaptive fault tolerance threshold is introduced, which effectively solves the problems of sensitivity to noise and strong parameter dependence of traditional methods, and has better robustness in processing complex acetabular morphology.

This utility model discloses a novel electric gear pump device for electric shovel lubrication truck, relating to the technical field of oil filling trucks for mining equipment. It includes a power compartment, a grease compartment, and a hose reel compartment. The power compartment includes a diesel generator set, a grease lubricating oil tank, a black oil lubricating oil tank, an electric gear pump set, an ultrasonic level gauge, a hose reel, a color paperless recorder, an electrical control cabinet, and a fire extinguisher. A ground-based oil replenishment system is installed on the side of the grease compartment. Ultrasonic level gauges are installed on the three oil tanks within the grease compartment to monitor the oil level in real time. These level signals are transmitted to the color paperless recorder installed on the electrical control cabinet panel. When absorbing oil, if the oil level in the tank is lower than the minimum absorbing level, the paperless recorder will issue a low-level alarm, reminding the operator to stop refueling to prevent the oil pump from running dry and being damaged. When replenishing oil in the tank, the paperless recorder will issue a high-level alarm, prompting the operator to stop oil supply to avoid oil overflow.

The utility model relates to hidden rail adjusting screw automatic feeding technology field, more specifically, it relates to a screw automatic sequencing feeding device, including frame, storehouse, belt material spare, sweep material spare, push material spare, unloading slide, storehouse assembly is in the frame and is used to place screw, and the belt material spare is located in the storehouse and moves along the vertical of storehouse to and fro, the top wall of belt material spare is equipped with the clamping groove, the clamping groove is used to place the stem of screw, and the sweep material spare is located on the storehouse and moves along the transverse of storehouse to and fro, and the push material spare is set up in the longitudinal both sides of storehouse with unloading slide, and in the vertical of storehouse all are located between sweep material spare and belt material spare, when the belt material spare rises to the preset height, the sweep material spare transverse movement is used for sweeping back the screw of belt material spare on the reverse state to the storehouse, and the push material spare is used for pushing the screw of belt material spare on the front state and moves to unloading slide, the utility model discloses a screw automatic sequencing feeding device has the effect of reducing processing noise, reduces equipment cost.

The utility model relates to the technical fields of core sample cutting machine discloses core sample cutting machine noise reduction energy -conserving green environmental protection structure, including the protective cover of cover setting in the outside of core sample cutting machine, and the protective cover has the protective cavity of accommodating core sample cutting machine in it, the protective cover has the protective wall, and the protective wall has the openwork area of inside and outside through arrangement, and the openwork area is covered with transparent window, the outside of protective wall has the outward side wall, and the inboard wall of protective wall has the inward side wall of arrangement towards protective cavity, and the inward side wall is covered with the sound insulation cotton layer, when the protective cover cover setting in the outside of core sample cutting machine, protective cavity is in sealed state, through the sound insulation cotton layer of protective cover, and make protective cavity be in sealed state, can significantly reduce the noise of core sample cutting machine work time generation, simultaneously, the sealed setting of protective cover can block dust and impurity to enter to guarantee the health of operator.

This application discloses a motor drive control method, apparatus, device, storage medium, and product, relating to the field of motor control technology. The disclosed motor drive control method includes: acquiring current motor parameters of a target vehicle under current operating conditions, wherein the motor parameters include an electrical frequency; if the electromagnetic force fluctuation frequency generated by the current harmonic frequency corresponding to the electrical frequency is within the resonant frequency range of the target vehicle, determining a target synchronous modulation scheme corresponding to the electrical frequency from a preset set of synchronous modulation schemes; and controlling the drive circuit of the target vehicle based on the target synchronous modulation scheme. This application uses a flexible synchronous modulation scheme instead of an asynchronous modulation method to avoid increasing the switching frequency, thereby reducing the losses in the new energy vehicle motor drive system.

This application provides a method, apparatus, device, vehicle refrigerator, and vehicle for controlling a vehicle refrigerator compressor, relating to the field of vehicle technology. The method includes acquiring the resonant speed of the vehicle refrigerator compressor and a pre-constructed set of operating speeds; the pre-constructed set of operating speeds includes compressor speeds corresponding to different vibration and noise performance characteristics; selecting a target operating speed from the pre-constructed set of operating speeds that avoids the resonant speed, and controlling the compressor to operate at the target operating speed. This application alleviates the limitations of traditional methods that solely limit speed in pursuit of NVH (Noise, Vibration, and Harshness), achieving a dynamic balance between NVH performance and cooling efficiency in vehicle refrigerators, effectively resolving the contradiction between slow cooling and vibration noise, and significantly improving user experience and overall vehicle comfort.

This utility model provides a wheel frame structure, including a pair of wheel frame plates arranged parallel to each other front and rear. Multiple rollers are mounted on the wheel frame plates, with both ends of each roller fixed to the front and rear wheel frame plates respectively. An elastic abutment is provided between one or both ends of each roller and the wheel frame plate. This elastic abutment presses against the roller, reducing noise generated by roller collision and vibration. The elastic abutment also provides axial flexible support, allowing the roller to undergo slight elastic deformation upon impact, thereby absorbing vibration energy. Furthermore, the parallel arrangement of the front and rear wheel frame plates forms a stable frame structure, which, together with the elastic abutment, achieves three-dimensional vibration suppression, creatively solving the noise problem of wheel frame structures. This utility model also provides a peristaltic pump head with corresponding noise reduction characteristics.

This invention relates to the field of seismic data processing technology, specifically disclosing a method and apparatus for noise suppression of data from complex piedmont zones. The method includes: converting shot gather data to a cross-domain; suppressing noise in the complex piedmont zone data within the cross-domain; and comparing the noise suppression effects in the shot domain and the cross-domain from both single-shot and stacked perspectives. Based on cross-domain data, this invention suppresses surface wave, anomalous amplitude, and linear interference noise. Compared with the noise suppression results of shot gather data, the signal-to-noise ratio (SNR) of the data is further improved, effectively alleviating the SNR problem in complex piedmont zones and effectively solving the noise problem caused by differences in excitation and reception factors. It can be used for fine structural imaging of complex piedmont zones, providing better basic data for oil and gas exploration in these zones.

The application relates to the technical field of bladeless fans, and provides a bladeless fan which comprises a shell, a fan blade and a sound absorption assembly. The shell is provided with an air duct cavity, an air inlet and an air outlet which are communicated with the air duct cavity, the fan blade is rotatably arranged in the air duct cavity, the sound absorption assembly is arranged in the air duct cavity, the sound absorption assembly and the inner wall of the shell enclose at least two sound absorption cavities, and the at least two sound absorption cavities are arranged at intervals in the air duct cavity. The bladeless fan provided by the application can solve the problem of large noise of the bladeless fan.

The utility model relates to the field of pipe stem conveyer, especially grasp formula feeding mechanism, including portal, the side fixed connection of portal has rack, the side of portal is provided with driving gear, driven gear, is provided with between the portal elevating support, the side of elevating support is provided with electromagnetic clutch, is provided with between the portal elevating mechanism that elevating support is lifted through rack, driving gear, driven gear control, the side of portal is provided with feeding arm, is provided with first jaw, second jaw on feeding arm, is provided with on feeding arm control first jaw, the catch mechanism that second jaw carries out the catch of feeding arm, portal fixedly connects with first connecting plate, the side of first connecting plate is provided with clamping plate, the side of first connecting plate is provided with control clamping plate and the fixed mechanism that portal carries out the fixation, the utility model discloses when using, can through catch mechanism and elevating mechanism solve the noise and impact problem when the pipe stem conveyer pipe column feeding.

The present application relates to atomization equipment technical field, disclose a kind of oil agent atomization device, comprising: bottle, shell, oil guide cotton and ultrasonic atomization sheet;The bottle has oil agent cavity in, the bottle is opened with the open mouth that is connected to the oil agent cavity, the shell is detachably connected with the bottle, and the shell covers the open mouth;The shell has atomization cavity in, the shell is opened with the atomization outlet that is connected to the atomization cavity, the ultrasonic atomization sheet is located in the atomization cavity, the ultrasonic atomization sheet has atomization plane, one end of the oil guide cotton is attached with the atomization plane, and one end of the oil guide cotton is arranged around the center of the atomization plane, the other end of the oil guide cotton extends to the oil agent cavity in through the shell.This application can effectively solve the problem of liquid leakage and noise in the prior art.

This application relates to the field of pilot health assessment technology, and provides a method and system for assessing pilot cellular health status based on statistical analysis. The method includes: acquiring the pilot's initial physiological information and mission environment information; removing interfering physiological information caused by external interference from the initial physiological information based on the mission environment information to obtain pure physiological information; determining the causal relationship between multiple measurement indicators based on the measured values ​​of multiple measurement indicators in the pure physiological information; determining the pilot's cellular health status information based on the causal relationship and the measured values ​​of the measurement indicators; and determining the pilot's health adjustment strategy based on the pilot's cellular health status information. This approach can improve the accuracy of pilot cellular health status assessment.

The present application is directed to a multi-feature financial domain named entity recognition method for some long-length, difficult-to-bound and various forms of expression named entities in the Chinese financial field. Firstly, the method divides entity boundary and entity classification as two independent tasks, introduces a multi-channel attention mechanism based on gate, divides the financial entity boundary on the basis of the pre-trained language model, and learns the enhanced Chinese character features. Then, the boundary division result is input into the pre-trained language model in the form of MASK for data enhancement. Subsequently, an enhanced feature based on the document-level entity is introduced to construct a financial entity classification model. Through experiments, the best-performing Chinese pre-trained language model is determined from several state-of-the-art models, which is then embedded into the method of the present application and compared with other benchmark models. The experimental results show that the proposed model is superior to other benchmark models in the named entity recognition task in the financial field.

The application discloses a sonar image super-resolution method and system based on diffusion generative model, and belongs to the technical field of underwater image processing. The method comprises the following steps: generating an initial diffusion state based on an input image and Gaussian noise conforming to a standard normal distribution; inputting a current diffusion state and a current iteration time step into a diffusion generative model to obtain total noise contained in an image under the current diffusion state; combining the current diffusion state, separating the total noise into structural noise and random noise, and then performing fusion to obtain optimized noise; calculating a preliminary estimated image corresponding to the current iteration time step based on the optimized noise and the current diffusion state; generating sampling noise conforming to the standard normal distribution, and generating a diffusion state of a next iteration time step based on the preliminary estimated image, the optimized noise and the sampling noise; and obtaining a super-resolution image until the inverse diffusion iteration process ends. The application can obtain a high-resolution image with high fidelity, a high signal-to-noise ratio, global consistency and adaptive deployment.

The application provides a dehumidifier return air pipe and a dehumidifier, the dehumidifier return air pipe is used for conveying refrigerant from an evaporator to a compressor, and comprises: a first return air section, one end of which is connected with the evaporator, and the other end of which extends towards the compressor; a second return air section, one end of which is connected with the compressor, and the other end of which extends towards the evaporator; and a damping section, which is connected with the first return air section and the second return air section respectively to form a conveying path from the evaporator to the compressor. Wherein, the damping section is provided with a first return bend, a first included angle is formed between the first return bend and the other end of the first return air section, a second included angle is formed between the first return bend and the other end of the second return air section, and the first included angle and the second included angle are 90-110 degrees. The dehumidifier return air pipe can effectively control the conveying speed of the refrigerant, reduce the vibration and noise of the dehumidifier return air pipe during work, and provide a better use experience.

This utility model discloses a gearbox with vibration reduction and noise reduction functions, including a lower housing, an upper housing disposed on top of the lower housing, a gear set disposed inside the lower housing, and a sealing assembly disposed on the lower housing and the upper housing. The lower housing has symmetrically arranged first mounting grooves on both sides of its top. The upper housing is fixed to the top of the lower housing, and the upper housing has symmetrically arranged second mounting grooves on both sides of its bottom, with each second mounting groove corresponding to a first mounting groove. The sealing assembly includes a fixing seat fixed to the lower housing and the upper housing, with a buffer sealing sleeve horizontally disposed at the center of one side of the fixing seat. The gear set includes a rotating shaft with a gear fixed on it, and bearings fixed to both ends of the rotating shaft, the bearings being embedded in a mounting tube. This application reduces the noise generated by vibration during gearbox operation, solving the problem of high gearbox noise.