20results about How to "Focus" patented technology

The present application relates to the field of optics, in particular to a broadband achromatic superlens with a large field of view. The superlens is composed of a cylindrical base embedded with a non-equal-height circular hole array and a nano-pillar array with a multi-ring structure. The non-equal-height circular hole array serves as the light entrance surface, and the nano-pillar array serves as the light exit surface. The circular hole array on the base has different depths and radii, and the nano-pillar array unit structure layer is composed of multiple ring bands, each ring band corresponding to a wavelength to achieve broadband achromatism. The nano-pillars arranged in the unit structure layer have various structures, such as cylindrical, annular, cross-shaped, etc. Different nano-pillar structures are used from the center to the outside, thereby reducing the mutual interference between adjacent ring bands. The materials of the unit structure layer and the base are transparent or low-absorption materials, and appropriate materials are selected according to different wavelength ranges. The superlens proposed in the present application can focus light beams of any wavelength range under a large field of view and a large spectral bandwidth.

This invention discloses an emotion analysis and feedback device based on visual and audio recognition in the field of psychological instruments and equipment technology. The device includes: a mobile base; a functional panel, vertically fixed to the top of the mobile base; a positioning ring, vertically suspended to the side of the functional panel, with an internal opening larger than the frontal contour of the human body, used for centering the user and restricting their sitting posture; a connecting arm, one end connected to the lower end of the functional panel and the other end connected to the positioning ring, used to support the positioning ring in a suspended state; and a flexible covering assembly located above the connecting arm, its surface forming a sloped structure facing the functional panel, used to guide the user's gaze to focus on the functional panel. This device features a hollow, large-sized positioning ring, which can center and align the user's torso and correct their sitting posture, avoiding blind spots caused by posture deviation. Combined with multi-directionally deployed visual and audio acquisition components, it significantly improves the accuracy of emotion analysis.

This invention relates to the field of blood glucose concentration prediction technology, specifically disclosing a method, system, and device for blood glucose concentration prediction based on a multi-branch attention mechanism. The method includes: acquiring multivariate time-series data related to blood glucose regulation; dividing the features into multiple feature subsets; inputting each feature subset into a corresponding independent recurrent neural network branch for time-dependent learning to generate a hidden state sequence; inputting each hidden state sequence into a corresponding attention submodule for processing, outputting a weighted feature representation; fusing the weighted feature representations to obtain a unified feature representation; and generating a blood glucose concentration prediction result through an output layer. This invention separates the temporal patterns of heterogeneous features through a multi-branch structure and focuses on key time steps using an attention mechanism, solving the problems of feature interaction interference and insufficient capture of key information in existing technologies, significantly improving the accuracy and clinical applicability of blood glucose prediction.

This application relates to a leisure bean product and its preparation method. The preparation method includes the following steps: weighing the prescribed amounts of fried tofu puffs, filling slurry, braising broth, and mixed seasoning oil; rapidly freezing the selected fried tofu puffs; deep-frying the frozen fried tofu puffs at high temperature to obtain square-shaped fried tofu puffs; injecting the filling slurry quantitatively into the first-fried fried tofu puffs, and then rolling and kneading to obtain a semi-finished product; deep-frying the semi-finished product at high temperature, removing it, draining it, and cooling it to room temperature; immersing the second-fried semi-finished product in braising broth for braising, and then draining the liquid; placing the drained semi-finished product in an oven for baking; coating the baked semi-finished product with mixed seasoning oil for seasoning; and packaging, high-temperature sterilization, cooling, and air-drying the seasoned semi-finished product to obtain the leisure bean product. The leisure bean product obtained by this preparation method has a rich and complex taste and a sandwich structure, and is suitable for industrialized and automated production.

This application provides an optical system and a laser cutting device. The system includes a first focusing lens, a concave lens, and a focusing lens group arranged coaxially along a first direction. The first direction is the initial transmission direction of the light emitted by the target light source. The optical axis of the first focusing lens passes through the virtual focal point of the target light source. The virtual focal point is the point where the reverse rays of the light emitted by the target light source converge. The distance between the first focusing lens and the virtual focal point of the target light source is greater than the focal length of the first focusing lens. The concave lens is configured to change the distance between itself and the first focusing lens to adjust the aberration of the light emitted by the target light source. As the distance between the first focusing lens and the concave lens in the collimating lens group changes from far to near, the optical system exhibits the following trends: negative defocus beam convergence and tending towards a flat top, positive defocus dispersion and tending towards Gaussianization, then the distribution of positive and negative defocus beams becomes equal, and finally, negative defocus dispersion and tending towards Gaussianization, and positive defocus beam convergence and tending towards a flat top.

A bath pedal convenient to install comprises a pedal body, and a containing area capable of containing a lifting rope is arranged at the bottom of the pedal body. A hollow pipe is installed at the bottom of the pedal body, and the interior of the hollow pipe is hollow to form a containing area. And the hollow pipe is fixed at the bottom of the pedal body through an adhesive. The bath pedal has the advantages that the containing area capable of containing the lifting rope is innovatively arranged at the bottom of the bath pedal body, and the core advantage of the structure is that an acting point is provided for the installation process. During installation, installation personnel can enable a lifting rope to penetrate through the hollow flat pipes arranged at the bottom of the pedal. Afterwards, the two persons can respectively pull the two ends of one lifting rope, and the whole bath pedal can be horizontally lifted easily and stably like a lifting handle. The problem that in the prior art, due to the fact that pedals are heavy and lack suitable grabbing points, force is difficult to apply especially in narrow spaces such as three faces leaning against the wall is thoroughly solved.

The application discloses a manufacturing method of an ultrasonic catheter, the ultrasonic catheter and a forming die thereof. The manufacturing method of the ultrasonic catheter comprises the following steps: preparing an array stack; selecting a lead-out wire; coating a polymer material at a preset distance from one end of the lead-out wire to form a preformed tube; electrically connecting one end of the lead-out wire close to the preformed tube to the array stack; adopting split pouring to manufacture a sound-transparent protective layer coated on the periphery of the array stack and one end of the preformed tube close to the array stack; electrically connecting the other end of the lead-out wire away from the preformed tube to a circuit connector; and forming a Parylene coating layer on the outer surface of the sound-transparent protective layer. The Parylene coating layer enables the sound-transparent protective layer to better adapt to the vascular environment of the human body and meet the requirements for use in blood vessels. Therefore, the selection range of the manufacturing material of the sound-transparent protective layer is wider, and a material with a lower pouring temperature can be selected to manufacture the sound-transparent protective layer, so that the array stack is prevented from being separated due to heat, and the acoustic performance, consistency and qualification rate of the ultrasonic catheter are improved.

The application relates to a small target chicken positioning method based on double-domain enhancement and dynamic priori, which comprises the following steps: performing multi-scale feature extraction on a breeding image, a chicken image and a background image respectively, performing double-domain enhancement on shallow features and generating breeding coding features; prototype construction is performed on chicken image features and background image features to generate chicken feature prototypes and background feature prototypes, and similarity enhancement and background suppression are performed; based on foreground scores and foreground k A content embedding and refined position priori of an object query are generated by selecting a high response feature point, and are input into a DETR decoder to output the boundary box coordinates and the category score of the chicken target. The application can alleviate the small target missing detection problem caused by the smoothing of shallow features, reduce the false detection risk caused by background interference, improve the small target positioning ability of the traditional DETR model which is limited by the lack of target area position priori in object query initialization, and effectively improve the positioning detection precision.

The application provides a space target recognition method and device based on an attention mechanism adaptive enhancement. The method comprises the following steps: acquiring a space target image; inputting a tensor of the space target image into a pre-trained space target recognition model to obtain a recognition result of the space target. For any one processing stage submodel, a tensor processing module set unit and a convolution block attention module are included. In the tensor processing module set unit, a plurality of tensor processing modules are connected in sequence, the tensor processing module is used for convolution and channel transformation of the input tensor, and / or transformation processing of the tensor element value. According to the technical scheme of the application, the tensor processing module is used for convolution and channel transformation of the input tensor, and / or transformation processing of the tensor element value, the accuracy of the final recognition result can be significantly improved, the convolution block attention module realizes channel screening, is conducive to focusing on key features, and improves the feature utilization rate.

This invention discloses an intelligent detection method for chain-penetrating faults based on AI algorithms, belonging to the field of intelligent fault diagnosis technology. The method includes: employing a multi-scale temporal neural network computation model to segment, aggregate, and encode events in a structured multi-rate temporal data stream, generating a multi-scale abnormal event set; constructing a hierarchical dynamic causal graph based on the multi-scale abnormal event set and applying scale-causal consistency constraints to generate a multi-time-scale fused causal graph; and using a reduced-order physical simulation method to perform counterfactual intervention and experimental alignment on the root causes at the ends of each path, obtaining a simulation-experimental deviation sequence for each chain-penetrating path. This invention further utilizes semantically aware reverse traversal and scoring pruning in the fused causal graph to select a set of candidate chain-penetrating paths that conform to the fault semantic logic and causal intensity distribution from a massive pool of potential causal paths.

The application relates to a wide-azimuth seismic data imaging domain phase consistency correction method, and relates to the field of seismic exploration. The method solves the problem of phase inconsistency caused by factors such as surface unevenness and different azimuth incidence angles in the existing seismic imaging process. The method comprises the following steps: S1: obtaining wide-azimuth prestack three-dimensional seismic data, and pre-processing the prestack three-dimensional seismic data; S2: performing radial domain multi-azimuth data subset efficient division on the pre-processed prestack three-dimensional seismic data, and obtaining a radial domain data subset; S3: based on the pre-processed prestack three-dimensional seismic data, constructing a reference gather through migration stacking; S4: based on the radial domain data subset, constructing a radial domain imaging gather; S5: based on the constructed reference gather and the radial domain imaging gather, obtaining a phase difference; and performing imaging domain phase consistency correction on the radial domain data subset. The method can effectively improve the phase consistency of seismic data, improve the resolution of seismic data and the imaging quality of underground structures.

A focusing electrode plate, an extraction mechanism, an ion beam generating device, and an ion implanter are disclosed. The focusing electrode plate includes a first channel penetrating the electrode body, through which ions pass. The radial cross-section of the first channel is elongated, and the depth of the first channel is greater than or equal to the width of the entrance end of the first channel. As the depth of the first channel increases, the potential difference between the entrance / exit of the first channel and the interior of the first channel increases, thereby improving the focusing effect on the ion beam.

The utility model discloses a new energy controller MC124 lock side plate fixed frock, new energy equipment manufacturing field, wherein, including frock bottom plate, product positioning seat, go up product positioning board and support column, the four corners of frock base top are provided with support column respectively, go up product positioning board and set up in support column's top, product positioning seat sets up on frock bottom plate, the utility model in allusion to the condition that workpiece is easy to shake in the process of screwing, specially designed this frock is used for fixed operation, effectively eliminates the adverse effect that causes installation operation to workpiece shaking, frock adopts fixed mode, greatly improved operation stability. Compared with the past manual operation, efficiency is improved obviously, and the defective rate also is obviously reduced, and the product quality and production progress are effectively guaranteed.

The utility model provides light-emitting arrow tail, including the tube body, the top insertion of tube body is connected with the lamp cap, the lamp cap inside slide installation has the lamp stand, the top fixed mounting of lamp stand has high bright LED lamp, the bottom of tube body is installed with the cover tail, the inside installation of cover tail has the battery, the top fixed of battery has the connection end, and the connection end is worn into the inside of tube body, the outside of lamp cap top is equipped with U type clamping groove, the inner wall of tube body is reserved accurate positioning groove, and the positioning groove of tube body inner wall is fixed with circuit board, the power connection scheme of elastic sheet thimble type, breaks through the traditional circuit structure connection limitation, realizes product miniaturization, compact design, reduces production cost and assembly complexity, has the market competitiveness with remarkable, in the complex jungle or night easily seeks the arrow branch or the prey that is shot in the environment, improves the aesthetic property of arrow branch, enhances the ornamental of archery sports competition.

This utility model relates to the field of orthopedic clinical technology, specifically to a limb exercise device for clinical use in traditional Chinese medicine orthopedics. It includes a first crutch, a second crutch, and connecting rods. Soft pads are attached to the tops of both the first and second crutches, and hand-held rods are attached to the middle of both. Connecting rods are rotatably connected to both the first and second crutches, and the two connecting rods are interlocked. By installing the first and second crutches and placing them under the patient's armpits, the patient grasps the hand-held rods in the middle. The patient first moves forward one step with their hand, then steps forward with the opposite leg, repeating this cycle to assist walking. During this process, the patient's weight is distributed across the crutches, increasing the point of leverage during walking and reducing the burden on the hands and legs. Therefore, this device both exercises the patient's legs and assists in walking, improving its practicality.

This application provides a vehicle control method and vehicle based on abnormal steering correction, relating to the field of autonomous driving technology. The method includes: first, determining the vehicle's temporal frequency characteristics, multi-dimensional driving behavior characteristics, and supplementary driving behavior characteristics based on multi-source vehicle operating data; second, fusing the temporal frequency characteristics, multi-dimensional driving behavior characteristics, and supplementary driving behavior characteristics to obtain fused decision features, which are used to characterize abnormal driver steering correction behavior; and finally, generating a vehicle control strategy based on the fused decision features, which is used to adjust the steering system's feedback rules and execution response methods for driver steering wheel operations in response to abnormal driver steering correction behavior. This solves the technical problem of low recognition accuracy of abnormal driver steering correction behavior in related technologies.

The utility model discloses a loudspeaker unit with sound resistance regulation function. The diaphragm of the unit is a folded ring type rectangular diaphragm; wherein, the folded ring type rectangular diaphragm comprises a folded ring area, and a hollow part arranged at the center of the folded ring area; the hollow part is covered with a fine hole reticular layer; the outer side of the fine hole reticular layer is covered with an intermediate film, and the covering ratio of the intermediate film is 30% to 70%. The utility model provides a channel for heat dissipation. The intermediate film is covered on the outer side of the fine hole reticular layer, and the covering ratio is 30% to 70%. When the sound wave is transmitted from the diaphragm to the fine hole reticular layer and then spreads outward, the intermediate film will change the propagation path of the sound wave. Due to the partial covering of the intermediate film, it will make the sound wave encounter different medium interfaces (the interface between the intermediate film and air) in the propagation process, thereby generating reflection and transmission phenomena, which is equivalent to adjusting the sound resistance and making the energy distribution of the sound wave more reasonable.

This application provides a method for achieving autofocus in airborne synthetic aperture radar (SAR) imaging, belonging to the technical field of airborne SAR imaging. Specifically, it includes the following steps: calling azimuth autofocus parameters, running the autofocus processing module, outputting the range image domain and azimuth image domain, and storing them according to the azimuth direction; calling azimuth block overlap autofocus parameters, repeatedly calling the autofocus processing module, outputting the range image domain and azimuth image domain, and storing them according to the azimuth direction; running azimuth FFT, converting the azimuth frequency domain to the azimuth image domain, storing it according to the range direction; calling the range autofocus parameters, running the autofocus processing module, outputting the range image domain and azimuth image domain, and storing them according to the range direction. This processing scheme improves the autofocus effect of the image.