14results about How to "Solve high" patented technology

The application provides an image recognition method and device, and relates to the technical field of image classification and recognition. In the disclosed scheme, the multi-stage feature decoupling and modal alignment are guided based on word vectors, effectively relieving the problems of visual feature entanglement and semantic combination ambiguity. Specifically, first, the visual feature decoupling in the image is realized through the channel attention and spatial attention mechanisms, and the attribute and object semantic information interaction enhancement in the image is realized through the bidirectional guiding mechanism. Further, the correlation between the multiple feature pairs is optimized by constructing the positive and negative sample pairs of multiple perspectives, and the effective alignment of the global visual feature and the semantic feature is realized. Furthermore, by balancing the object and attribute classification loss, the alignment loss and the combined classification loss, the collaborative optimization of the feature decoupling, the modal alignment and the combined prediction is realized, thereby improving the generalization ability of the image recognition prediction model to complex and various unknown combinations and improving the accuracy of the image recognition.

The utility model relates to the technical field of pressing equipment, in particular to a pressing device. The pressing device is used for pressing a first workpiece and a plurality of second workpieces, and comprises a positioning mechanism used for bearing and positioning the first workpiece; the press-fit mechanism comprises a driving assembly, an elastic press-fit assembly and a fixed press-fit assembly, the driving assembly comprises a press-fit driving piece and a connecting piece, the press-fit driving piece is connected to the positioning mechanism, the connecting piece is connected to the press-fit driving piece, the elastic press-fit assembly is elastically connected to the connecting piece, the fixed press-fit assembly is connected to the connecting piece, and the fixed press-fit assembly and the elastic press-fit assembly are arranged at intervals; the elastic press-fit assembly and the fixed press-fit assembly correspond to the multiple second workpieces correspondingly, the press-fit driving piece drives the connecting piece to move towards the second workpieces, so that the elastic press-fit assembly and the fixed press-fit assembly abut against the corresponding second workpieces, and then the first workpiece and the multiple second workpieces are pressed. The pressing device can be used for pressing different workpieces at the same time, and is low in production cost, high in operation efficiency and good in pressing effect.

The utility model relates to the technical field of sensor installation, and specifically relates to a force-electric coupling resonant tuning fork sensor installation structure. The device comprises an adjusting assembly, the adjusting assembly comprises a fixing plate, two arc-shaped fixing holes are formed in the top side of the fixing plate and are far away from each other, two connecting plates are fixedly connected to the positions, close to one side, of the top side of the fixing plate, and the two connecting plates are far away from each other; and the same sides of the two connecting plates are fixedly connected with limiting strips. According to the utility model, because the electrical coupling resonant tuning fork sensor is poor in height and angle adjustment, through the arrangement of the two connecting plates, the threaded rod vertically moves between the two connecting plates, the height adjustment can be carried out, and the angle adjustment can be carried out before the first extrusion part is rotated to extrude the two limiting strips. Therefore, the problems of height and angle can be solved, and the problem that the force-electric coupling resonant tuning fork sensor cannot be accurately installed at a corresponding position can be solved.

The application provides a host shock absorption mounting structure and a compressor assembly. The host shock absorption mounting structure comprises a support plate, an adjusting plate and a shock pad assembly. The support plate is arranged above the adjusting plate, and the support plate comprises a host mounting hole and a shock pad mounting hole. The adjusting plate is provided with a base mounting hole, and the host mounting hole, the shock pad mounting hole and the base mounting hole are arranged staggeredly. The shock pad assembly is fixed on the shock pad mounting hole, and the shock pad assembly has a main shock absorption section between the support plate and the adjusting plate. The application shifts the mounting position of the shock pad assembly, thereby significantly reducing the overall installation height of the compressor. While meeting the installation requirements of the compressor, the space utilization of the compressor assembly is improved, and the height problem and the on-site maintenance problem are solved.

The application provides a micro-powder filling and micro-crystal fitting composite production line, which comprises a plurality of mechanical arms and wafer fitting equipment, a primary vibration powder supply device and a primary pressing device, and a powder secondary vibration powder supply pressing device; the mechanical arms are arranged between the primary vibration powder supply device and the primary pressing device, between the primary pressing device and the wafer fitting equipment, between the wafer fitting equipment and the secondary vibration powder supply device, and between the secondary vibration powder supply device and the secondary pressing device to link the feeding and discharging; the primary vibration powder supply device is provided with a first dust removal device, the primary pressing device is also provided with a first pressing dust removal mechanism, the powder secondary adding device is provided with a secondary dust removal mechanism, and the powder secondary pressing device is provided with a second pressing dust removal mechanism, so that surface dust removal can be performed in time after the powder is added and after the powder is pressed, and the overflowed powder can be avoided from being brought into the next station; and the relay operation of the plurality of mechanical arms replaces the traditional flow channel transmission.

This invention discloses a UV-curable raw lacquer hybrid prepolymer coating and its preparation method, comprising: rosin acid, hydroxyethyl acrylate, p-toluenesulfonic acid, polymerization inhibitor, 4-acryloyloxybenzophenone, polyethylene glycol methyl ether acrylate, azobisisobutyronitrile, refined raw lacquer, trimethylolpropane triacrylate, leveling agent, and defoamer. The coating uses rosin acid as a rigid framework, forming a macromolecular photoinitiator by side-linking benzophenone photoinitiator groups and flexible polyether segments. Then, through a controllable UV pre-irradiation process, it undergoes free radical grafting with lacquer urushiol to construct a "rigid-tough tunable" hybrid network. This invention solves the problems of slow curing of raw lacquer, easy migration of small-molecule photoinitiators, and high coating brittleness in existing technologies. The coating uses a macromolecular photoinitiator design, with the initiating groups fixed to the rosin framework through chemical bonds, fundamentally solving the migration problem. Furthermore, the "pre-grafting" process improves compatibility, endowing the coating with excellent comprehensive properties.

The invention relates to an endoscope low-light image real-time enhancement and noise reduction method based on an FPGA, and the method comprises the following steps: carrying out the parallel calculation of image brightness, noise and detail features on the FPGA, and carrying out the adaptive division of a brightness region according to the image brightness, noise and detail features; dynamically generating a pair of negative correlation enhancement and noise reduction weight coefficients for each pixel based on the region, noise and detail features; and synchronously executing processing on the pixel data according to the weight coefficient through enhancement and noise reduction processing units arranged on the FPGA in parallel. The method can further comprise the steps of iterative optimization based on quality feedback, scene-adaptive parameter adjustment and optimization and dynamic adjustment of processing precision according to content complexity. According to the method, low-delay and high-frame-rate real-time processing is realized, focus details are effectively protected while the overall visual effect of the image is remarkably improved, and the method has high energy efficiency and strong environmental adaptability.

The invention discloses a low-illumination image enhancement method based on gradient perception and intermediate frequency guidance, which mainly constructs a double-branch encoder-decoder network model in an HVI color space so as to effectively recover image texture details, suppress noise and improve color fidelity under a low-illumination condition. Firstly, an RGB image is converted into an HVI color space, and two branches of HV and I are separated; secondly, in the encoding process of an encoding layer, a gradient guide channel attention module is adopted to enhance detail perception, and meanwhile, deformable cross-branch fusion attention is adopted between middle-layer features and in a decoding layer to achieve cross-branch dynamic information interaction; in a bottleneck layer, an intermediate frequency guided multi-scale frequency domain enhancement module is adopted to perform intermediate frequency guided amplitude feature enhancement and phase maintenance in a frequency domain; and finally, reconstructing the enhanced HVI image through a symmetric decoder, carrying out residual connection on the HVI image and the initial HVI image, and inversely transforming the HVI image back to the RGB space to obtain a recovered image. Compared with the prior art, the method has better image visual quality.

The utility model discloses an adjustable hydraulic clamp fixing frame for a petroleum drilling machine, and relates to the technical field of petroleum drilling equipment, the adjustable hydraulic clamp fixing frame for the petroleum drilling machine comprises three placing circular plates, the three placing circular plates are fixedly connected through two connecting cross rib plates, a group of placing holes are formed in each placing circular plate, a fixing circular plate is arranged below the placing circular plates, and the fixing circular plate is connected with the connecting cross rib plates. A fixing hole is formed in the fixing circular plate, and a rotating mechanism and a lifting mechanism are arranged between the placing circular plate and the fixing circular plate. By arranging the rotating mechanism and the lifting mechanism, angle adjustment and height adjustment of the placing circular plate are achieved, the placing position of the hydraulic clamp can be flexibly adjusted according to the height of a worker and the requirements of actual working scenes through the design, operation inconvenience and potential safety hazards caused by fixed height and angle of a traditional goods shelf are avoided, and the working efficiency is improved. And the operation convenience and the working efficiency are obviously improved.

The invention discloses high-performance polypropylene and a preparation method thereof, and relates to the technical field of high polymer material modification. The preparation method comprises the following steps: etching glass beads, modifying with silane, and reacting with vinyl silicone oil emulsion to prepare reactive core-shell reinforced phase particles; then mixing homo-polypropylene, block co-polypropylene, the reactive core-shell reinforced phase particles and other auxiliaries to prepare a premix, adding a cross-linking agent and an initiator, and performing extrusion through a twin-screw extruder to prepare primary master batches; and finally, carrying out multi-stage dynamic cross-linking reaction, supercritical carbon dioxide treatment, beta-crystal nucleating agent addition and annealing to obtain a finished product. The problems that traditional modified polypropylene is unbalanced in rigidity and toughness, poor in interface compatibility and unstable in performance are solved, the finished product has excellent tensile property, impact toughness and heat resistance, the process is stable, the product is matched with existing equipment, and the product can be widely applied to the fields of automobiles, electronics, buildings and the like and has good popularization value.

The utility model discloses an adjustable unmanned aerial vehicle bottom supporting frame, and relates to the technical field of unmanned aerial vehicle related equipment, the adjustable unmanned aerial vehicle bottom supporting frame comprises a vehicle body, the bottom surface of the vehicle body is fixedly provided with a clamping plate, and the outer surface of the clamping plate is slidably connected with a supporting plate. According to the utility model, the design structure is reasonable, the rotating rod can be rotated to drive the threaded rod to rotate through the cooperation among the rotating rod, the threaded plates, the first screw rod and the contact plates, and the threaded rod drives the two threaded plates to get close to each other or get away from each other, so that the distance between the two contact plates can be adjusted; the problems that according to an existing supporting frame, the height and distance of supporting legs cannot be adjusted basically, the distances of the supporting legs suitable for unmanned aerial vehicles of different sizes are different, and if a vehicle body is long and the distance between two pairs of supporting legs is short, the center of the unmanned aerial vehicle is unstable when the unmanned aerial vehicle touches the ground, and a chassis is damaged are solved.

The invention discloses a method for reducing the precipitation temperature of a nano copper-rich phase and application of the method, and relates to the technical field of metal material precipitation strengthening. Rare earth metal elements are added into the copper-containing steel, and the precipitation temperature of a nano copper-rich phase is reduced to be not higher than 480 DEG C by regulating and controlling the copper precipitation behavior through the rare earth metal elements. According to the method, based on a 9R-Cu phase low-temperature precipitation mechanism of rare earth element micro regulation and control, the effective precipitation temperature of the 9R-Cu phase is reduced to 480 DEG C or below through the heterogeneous nucleation promotion effect of Ce atoms in the Cu precipitation process, so that it is guaranteed that a base material obtains the excellent strengthening effect, meanwhile, formation of a brittle phase on the interface of the composite material is avoided, and the service life of the composite material is prolonged. And coordination and unification of base material strengthening and interface stability are realized.

This invention discloses a TOPCon battery and its fabrication method, belonging to the field of TOPCon battery technology. It includes a monocrystalline silicon wafer with a tunneling layer, a doped polycrystalline silicon layer, a back anti-reflection layer, and a back metal electrode sequentially disposed on its back side from the inside out. The doped polycrystalline silicon layer includes a first doped polycrystalline silicon region and a second doped polycrystalline silicon region. The first doped polycrystalline silicon region is in contact with the back metal electrode and is disposed on the surface of a groove. The tunneling oxide layer is relatively thin, and the inward junction depth is greater than that of the second doped polycrystalline silicon region. This effectively prevents electrode metal from penetrating into the junction region, reduces metal recombination current, and improves the battery's open-circuit voltage. Furthermore, the first doped polycrystalline silicon region has a larger contact area with the printing paste, reducing the battery's contact resistance. Simultaneously, the groove prevents the printing paste from widening outward, ensuring a high grid line aspect ratio, reducing grid line resistance, and thus improving the battery's fill factor.