10results about How to "Fix poor quality" patented technology

The application relates to a visual SLAM system under low-illumination conditions, which comprises an image preprocessing module and a SLAM module. The image preprocessing module comprises an image contrast enhancement submodule based on histogram equalization and an image denoising submodule based on domain transfer. The image contrast enhancement submodule based on histogram equalization is used for performing contrast enhancement on a low-illumination image to obtain a contrast-enhanced image, and the image denoising submodule based on domain transfer is used for performing denoising on the contrast-enhanced image. The visual SLAM system under low-illumination conditions has the advantages that the image contrast is improved and the noise is processed in the image preprocessing module, the low-illumination image detail expression capability is improved, the problem of poor SLAM input image quality under low-illumination conditions is solved from the input level, and the system has high precision and good stability.

The application relates to an uplink-based beam weight determination method, which comprises the following steps: obtaining user equipment measurement data of a target cell and a target cell adjacent area, the user equipment measurement data comprising uplink path loss, time advance and spatial orientation information of a user; constructing an equivalent uplink distance model according to the uplink path loss, the time advance and the spatial orientation information; determining target beam weights of base station antennas based on the equivalent uplink distance model and a gradient-aware particle swarm optimization algorithm, and issuing the target beam weights to a base station antenna array. Through the application, the problem that poor uplink quality is caused by inaccurate beam weights is solved, optimization is directly carried out based on uplink original data, and deviation of uplink performance caused by optimization of downlink data is avoided. The equivalent uplink distance model is constructed, and single optimization dimension and incapability of coping with complex uplink requirements are avoided.

The utility model discloses a drawing machine tool for machining a metal hexagonal rod, and belongs to the field of hexagonal rod machining. A drawing machine tool for metal hexagonal rod machining comprises a base, a driving component is fixed to the upper side of the base, a resistance heater is arranged on one side of the driving component, and a machining assembly is fixed to one side of the resistance heater. Meanwhile, an air cylinder and a pushing block in the driving component accurately apply pushing force, it is ensured that the hexagonal rod is evenly stressed in the drawing process, the straightness is guaranteed, then the six faces are preliminarily and finely ground and formed in cooperation with subsequent three sets of grinding components, possible section shape deviation is corrected, the forming quality is improved, and the product quality is improved. The problem that part of the machined hexagonal rod is poor in quality is solved.

The utility model relates to the technical field of colla corii asini mixing, and discloses a mixing and concentrating device for processing colla corii asini, which comprises a mixing tank, the outer wall of the mixing tank is fixedly connected with a heating groove, a stirring assembly is arranged in the mixing tank, a power assembly is arranged above the stirring assembly, the stirring assembly comprises a plurality of stirring blades, and the stirring blades are arranged on the stirring blades. Transmission columns are fixedly connected to the side walls of the stirring blades, a plurality of wall scraping rings are fixedly connected to the bottoms of the outer walls of the transmission columns, and the wall scraping rings are used for scraping and sweeping donkey-hide gelatin adhered to the inner wall of the mixing tank. According to the donkey-hide gelatin mixing device disclosed by the utility model, the driving motor I drives the transmission column to drive the plurality of stirring blades on the outer wall to rotate, so that a donkey-hide gelatin mixture is fully stirred, and meanwhile, the wall scraping ring is driven to scrape and sweep the inner wall of the mixing tank, so that the adhered donkey-hide gelatin mixture is separated, and the effect of fully stirring and mixing donkey-hide gelatin is achieved; the problem of poor donkey-hide gelatin quality caused by non-uniform donkey-hide gelatin stirring and wall sticking of materials is solved, and the donkey-hide gelatin processing quality and efficiency are improved.

The invention relates to the technical field of bridge prefabricated part machining, in particular to a road and bridge planning steel structure bridge prefabricated part machining and welding device which comprises a welding platform and a base plate, and the base plate is installed on the upper surface of the welding platform and used for placing a steel plate. A plurality of first positioning blind holes are formed in the diagonal line of the upper surface of the base plate from left to right at equal intervals, limiting blocks are inserted into inner cavities of the first positioning blind holes, the inner cavities of the first positioning blind holes are rectangular, and the limiting blocks are prevented from rotating. A support is installed on the upper surface of the welding platform, and two hydraulic oil cylinders are installed on the left side of the top of the support. A positioning mechanism is installed at the output end of the hydraulic oil cylinder. The problem that in a traditional technology, the quality of embedded parts is poor is fundamentally solved, the position adjusting difficulty during follow-up pier installation is greatly reduced, hidden dangers such as too large assembly gaps and uneven stress caused by inclination and deviation of anchoring ribs can be avoided, and reliable guarantee is provided for long-term service safety of the whole bridge structure.

The present application relates to the technical field of composite material forming, in particular to a forming method of a composite material structure with a small R-angle box type. The method comprises the following steps: preparing a twist strip with the same geometric shape as the R-angle region, and pre-pressing the twist strip; placing the pre-pressed twist strip in the R-angle region of the first layer of prepreg, and using a pressing plate to adhere the twist strip to the first layer of prepreg; vacuum packaging the twist strip and the first layer of prepreg, and pre-pressing using a hot press; sequentially laying the remaining layers of prepreg, and using a pressing plate to compact the R-angle region during each layer of laying; after the laying is completed, vacuum packaging the whole, and curing in a hot press to obtain a composite material with a small R-angle box type structure. The forming method of the composite material structure with a small R-angle box type aims to solve the problem of poor R-angle forming quality of the negative mold forming of the composite material with a small R-angle box type structure.

The utility model relates to the technical field of fused zirconia corundum bricks, and discloses a mold for fused zirconia corundum bricks, which comprises a mold outer container, a mold inner container is arranged in the mold outer container, a placing component is arranged in the mold outer container and acts on the mold inner container, a stabilizing component is arranged in the mold outer container, and the stabilizing component is used for stabilizing the mold inner container. A cleaning assembly is arranged in the mold outer container, the stabilizing assembly comprises a fixing column, the two ends of the fixing column are fixedly connected to the interior of the mold outer container, a sliding rail is arranged in the mold outer container, and the outer wall of the fixing column is slidably connected with the interior of a sliding block. According to the utility model, the die liner is clamped by driving the connecting block and the sliding block through the die liner and matching with the spring I, so that the die liner is conveniently disassembled and assembled, the stability of the die liner during working is kept, the problem that the die liner cannot be conveniently disassembled due to the fact that various tools are required to be matched for use when the die liner is disassembled and assembled in the prior art is solved, and the convenience is improved.

The utility model relates to the technical field of binding machines, in particular to an anti-displacement corrugated carton binding machine which comprises a binding head, a driving rod, a support, a bottom plate, an adjusting baffle, a pressing frame and an elastic rod. The support provides supporting and mounting places for other mechanisms, the distance between the adjusting baffles is adjusted to be consistent with the width of the corrugated board, at the moment, the pressing frame is pulled upwards to compress the elastic rods, the pressing frame is separated from the bottom plate, the corrugated board is inserted between the adjusting baffles and placed on the bottom plate, and the corrugated board can be effectively prevented from shaking through the adjusting baffles on the two sides of the corrugated board; when the corrugated paper box is bound, the pressing frame is loosened, the elastic rod is reset to push the pressing frame to move downwards and firmly press the corrugated paper box, finally, the driving rod drives the binding head to descend to bind the corrugated paper box, the corrugated paper box is formed, the pressing frame is pulled upwards again, the corrugated paper box is taken out, and the binding operation of the corrugated paper box is completed, the binding machine can prevent the binding head from shifting and deviating during binding, and the finished product quality of the corrugated paper box is guaranteed.

The utility model relates to a technical field of crushing device, concretely is a kind of crushing device for traditional chinese medicine residue recycling, including installation frame, and the outer wall of installation frame is inlayed and is installed with crushing shell;The utility model is triggered when reaching preset value by humidity sensor monitoring environmental humidity, controller drive electric control cylinder operation, and the sliding shutter is driven along guide rail transverse movement by connecting rod through cylinder, so that the residue in drying shell inner chamber is layered and falls, due to the heating time of middle residue is longer, it is preferentially dropped into lower crushing shell, and automatic grading unloading based on drying degree is realized;By the sliding of larger material along the inclined material blocking sieve plate triggers sieve plate sliding into return material shell, controller synchronous drive servo motor drives flexible rubber baffle operation through rotating lever-cylinder-transmission belt system, and flexible baffle pushes back material at the junction to return material shell inner wall, guide material to enter drying shell through return material groove and communicating groove, finally fall into crushing shell and realize cyclic crushing by crushing roller.

The application discloses a welding connection method of a UHPC beam-steel beam laminated structure and relates to the technical field of bridge construction in fixed buildings, and specifically comprises the following steps: S1, embedding a temperature sensor under a UHPC beam embedded part to monitor the temperature in real time; S2, hoisting the UHPC beam and the steel beam to the pier, positioning, and adopting an angle joint horse plate to fix the T-shaped full penetration fillet weld on the outer side of the steel beam; S3, preheating the to-be-welded area of the T-shaped full penetration fillet weld between the steel beam web plate and the UHPC beam embedded part; S4, sequentially performing backing welding, filling welding and cap welding on the T-shaped full penetration fillet weld between the steel beam web plate and the UHPC beam embedded part, controlling the layer temperature during welding, and controlling the temperature of the weld area; and S5, after the welding is completed, covering the joint area with heat preservation cotton to perform heat preservation and slow cooling to normal temperature, reducing the cooling speed of the weld, and completing the welding connection. The application solves the technical problem of poor quality of the weld after the UHPC beam and the steel beam are welded in the prior art.