17results about How to "Consistent structure" patented technology

The invention relates to a mapping system and method for flight inspection of indoor equipment, the system comprises a data acquisition end and an offline data processing end, the data acquisition end comprises an unmanned aerial vehicle and a sensing module, and the sensing module comprises a laser radar module, a binocular camera module, an inertial measurement module and an airborne recording module; the method comprises the following steps: synchronously acquiring multi-source data through layered flight; performing space-time alignment and preprocessing; self-adaptive sampling is carried out based on point cloud geometric prior guide image features, and laser-vision joint features are generated; fusing point cloud registration, joint features and inertial data, and carrying out joint estimation on adjacent frame pose increments; performing loopback detection based on the key frame to generate a closed-loop constraint; constructing and optimizing a pose map to eliminate cumulative drift; and finally fusing to generate a global point cloud map. According to the method, the space consistency and geometric accuracy of the map can be effectively improved, and a reliable data basis is provided for digital modeling and intelligent operation and maintenance of indoor equipment inspection.

The invention provides a photovoltaic sunshade shed. The photovoltaic sunshade comprises a frame structure and a photovoltaic module. The frame structure comprises a plurality of frame assemblies and a plurality of stand column assemblies, each frame assembly comprises a frame body provided with a cavity, the upper end of each stand column assembly is used for connecting two adjacent frame assemblies, and the lower end of each stand column assembly is used for being connected with a to-be-fixed face. The photovoltaic assembly is installed in the frame structure and comprises a photovoltaic piece, the photovoltaic piece comprises a photovoltaic panel and a connector extending out of the photovoltaic panel, the connector of the photovoltaic assembly is electrically connected through an electric connection assembly, and the electric connection assembly penetrates into the cavity of the frame body and extends to the cavity of the stand column assembly.

The utility model relates to the technical field of paper box assembly, and particularly discloses automatic magnet pasting equipment for a paper box, which comprises a rack, and a first feeding device, a second feeding device, a glue supply device, a pasting manipulator and a pasting workbench which are arranged on the rack, the first feeding device is used for supplying an external paper box to the material pasting workbench, the second feeding device is used for supplying a magnet to the material pasting manipulator, the glue supply device and the material pasting manipulator are arranged in a matched mode and used for providing an adhesive enabling the magnet and the paper box to be pasted in a matched mode, and the material pasting manipulator is arranged on the rack in a reciprocating motion mode; the material pasting mechanical arm is used for picking up the magnet supplied by the second feeding device, driving the magnet to adhere the adhesive and pasting the magnet on the paper box borne by the material pasting workbench. According to the technical scheme, efficient and automatic mounting of paper boxes and magnets is achieved, the production efficiency is improved, the labor cost is reduced, the paper box mounting device adapts to different paper box specifications, the mounting quality is guaranteed, and the finished product yield and the equipment operation stability are improved.

The invention belongs to the field of space target imaging, and discloses a space target three-dimensional reconstruction method for inhibiting dark color interference through combination of brightness and transparency, which is used for solving the problems of poor imaging quality and inaccurate pose estimation of a space target. According to the method, multiple requirements of improving the quality of an input image, adjusting a pose and training a three-dimensional model are jointly completed, and low-quality imaging of an incomplete imaging system is preprocessed based on lucky imaging; and then, dense feature points are extracted by using a pre-training network based on no detector, estimation of a three-dimensional initial point cloud and an initial pose of a camera is carried out, and pose joint adjustment is carried out by combining RANSAC and Bundle AdJustlement. During training, an MLP-based optimizer is used for calculating the deviation of pose adjustment, meanwhile, training of parameters of three-dimensional Gaussian primitives is carried out, and after various physical constraints are added, a one-stop assembly line can be implemented. According to the method, the good basic shape and the sharp edge of the model are kept, the good anti-noise capability is achieved, and meanwhile the real-time performance and the robustness are achieved.

The application belongs to the technical field of vehicle information anonymization detection, and particularly relates to a multi-type image anonymization annotation dataset construction and target coverage rate determination method. The method is based on a face and license plate image dataset with double annotation of theoretical anonymization region and anonymization features, introduces an anonymization feature extraction branch in an improved YOLOv5-L model and performs cross-modal feature fusion, combines a plurality of loss functions with theoretical anonymization region positioning loss as the core and a two-stage progressive training and difficult example mining mechanism, and realizes precise learning of the anonymization features. After normalizing the input anonymization image, the model inference obtains the theoretical anonymization region coordinates and maps them back to the original size, and through non-maximum suppression and matching of the IoU threshold, the region coverage rate is calculated to determine the positive detection, missed detection and statistical false detection rate. The application effectively overcomes the feature dependency failure and model robustness problem, and realizes high-precision, low-misjudgment anonymization detection and evaluation under various anonymization conditions.

The invention relates to a cross-color gamut phase-guided double-attention fusion HDR imaging method. The method comprises the following steps: step (1), carrying out data preprocessing of denoising and cleaning on an original multi-exposure image sequence; step (2), obtaining standardized image data; (3) mapping a nonlinear pixel value into a linear physical illumination value for the standardized image data through a reverse application camera response curve, and outputting a linearized multi-frame image; step (4), splicing the linearized multi-frame images on a channel dimension, and constructing a unified input tensor containing complete dynamic range information; (5) performing convolution operation on the input tensor, and extracting shallow feature representation of local textures and edges of the image; extracting shallow layer features; and step (6), introducing a double attention mechanism to perform interaction and aggregation of global features, and outputting a fused high dynamic range feature map. The method can stably work in a dynamic scene and under an extreme exposure condition, and promotes the practical application of an HDR imaging technology.

The invention discloses a strong-acid-corrosion-resistant carbon-loaded platinoid all-alloy nano material and a preparation method thereof, and relates to the technical field of new energy materials. The preparation method of the carbon-loaded platinoid all-alloy nano material comprises the following steps: dispersing a carbon carrier in a solvent, adding platinum and copper precursors, dispersing, and adsorbing at constant temperature to obtain a suspension mixed solution; drying by distillation, drying and grinding to obtain a solid compound; calcining in an inert atmosphere, and cooling to obtain a carbon-supported platinoid material; and carrying out strong acid corrosion treatment, washing, drying and grinding to obtain the strong acid corrosion resistant carbon-loaded platinoid all-alloy nano material. The prepared material can keep the crystal structure stable in a strong acid environment and has excellent acid corrosion resistance, and the platinum-copper nano material takes platinum as a solvent and copper as a solute to form a complete alloy phase with the atomic ratio of copper to platinum being greater than or equal to 1: 1. When the material is used as an oxygen reduction catalyst, the atom utilization rate of platinum is high, and meanwhile, the oxygen reduction reaction catalytic activity and long-term stability of the material are remarkably improved.

The invention relates to the technical field of building structures, and discloses photovoltaic integrated building outer wall glass which comprises a glass curtain wall, the glass curtain wall comprises a curtain wall frame, the inner space of the curtain wall frame is divided into an upper installation area and a lower installation area, and multiple sets of power generation units are arranged in the upper installation area in the length direction in an array mode. The power generation unit is arranged to be switched between a power generation state and a standby state, a control mechanism is arranged in the lower installation area and used for controlling state switching of the power generation unit, the power generation unit is parallel to the tempered glass in the power generation state, and the power generation unit is perpendicular to the tempered glass in the standby state. The power generation unit comprises an outer frame rotationally installed on the upper installation area, a rotating shaft formed at the rotating installation position is vertically arranged, a first photovoltaic panel is arranged in the outer frame, the outer frame is made of a transparent material, and when the power generation unit is in a power generation state, a diffusion plate is arranged on the side, facing the indoor space, of the outer frame.

The invention discloses a device and method for maintaining a load position unchanged, the device comprises lower telescopic units, a box body, a rope, a side edge steering unit, a center switching mechanism, an upper telescopic unit and a fixing clamp, the fixing clamp used for clamping the rope is installed in the middle of the bottom end of the box body, and a plurality of lower telescopic units are installed at the bottom end of the box body; a plurality of lower telescopic units are installed on the top of the box body and distributed in an array mode, a center switching mechanism is installed in the middle of the box body, a plurality of upper telescopic units are installed on the top of the box body and distributed in an array mode, and side edge steering units are installed on the two sides of the top of the box body. The device is suitable for the transmission balance test on the single crystal furnace, and is also suitable for occasions where the upper end is continuously lifted, the load weight is increased and the position is not changed, the load does not need to be designed to be equal to a crystal silicon rod in length or equal to a furnace body in diameter, and space conflicts between the load and the furnace body and between the load and an auxiliary chamber are avoided.

The application discloses a mesoporous hollow sphere assembly structure catalyst and a preparation method and application thereof, and belongs to the technical field of hydrogen production by methane decomposition. The preparation method comprises the following steps: dissolving Ni salt, Al salt and Ce salt in a solvent, and controlling the molar ratio of Ni, Al and Ce to be 7:(1-2.5):(0.5-2); obtaining atomized liquid drops through atomization, and performing a decomposition reaction on the atomized liquid drops at 400-500 DEG C; collecting reaction products, drying, and then calcining by heating to 550-700 DEG C to obtain a catalyst precursor; and performing reduction treatment on the catalyst precursor in a reducing atmosphere, and the mesoporous hollow sphere assembly catalyst with a cerium-doped regulated interface is obtained. The catalyst exhibits remarkable high mass space velocity long-term stability and anti-coking performance in the methane catalytic decomposition reaction.

The invention relates to a method for preparing a high-purity carbon nanotube, in particular to a method for preparing a high-purity carbon nanotube through alloy catalytic methane cracking. The invention aims to solve the problems that the catalyst is easy to inactivate, the product carbon nanotube is low in purity and difficult in morphology control when the existing catalytic system is used for catalyzing the methane cracking reaction, and the application in the field with extremely high requirements on the consistency of the carbon nanotube is seriously restricted. A catalyst precursor solution is subjected to spinning treatment in combination with an electrostatic spinning technology, and nickel-based alloy precursor fibers with high specific surface area, high porosity and controllable fiber arrangement are formed; the preparation process not only improves the catalytic activity of the catalyst in the CMD reaction, but also effectively regulates and controls the nucleation and growth process of the carbon nanotubes, so that high-selectivity synthesis of the carbon nanotubes with high graphitization degree, high purity and consistent structure is realized, and a reliable method is provided for controllable preparation of the high-quality carbon nanotubes.

This invention discloses a combined electro-discharge machining (EDM) method for long, narrow slit structures, specifically relating to the field of EDM technology. The steps are as follows: The workpiece is mounted on the EDM electrode wire; the EDM electrode wire moves in the XY plane; the machined workpiece is then aligned with the electrolytic machining wire electrode; the power supply and electrolytic control system are turned on for secondary machining; the electrolytic machining wire electrode moves along a predetermined trajectory in the XY plane; after secondary machining, the power supply is disconnected, the electrolyte circulation system is shut off, the electrolytic machining wire electrode and workpiece are removed, and both are cleaned, thus completing the machining process. This invention solves the problem of existing machining methods struggling to achieve high-quality machining of ultra-thin sheet-like long, narrow slit structures, improving the machining quality and efficiency of such structures.

The invention provides a whitening and freckle-removing composition, a preparation method and application of the whitening and freckle-removing composition in cosmetics, and belongs to the technical field of cosmetics, and the whitening and freckle-removing composition is characterized in that a first functional unit is a water-phase continuous phase containing polyphenol extract and vitamin C active ingredients; the second functional unit is a reaction isolation unit in which nicotinamide exists in a lipidosome coating form; the first functional unit and the second functional unit form mutually independent structural units in the same composition, nicotinamide is spatially isolated from the polyphenol plant extract and the vitamin C active ingredient in the storage period, and nicotinamide is gradually released in a controlled release mode in the use period. Therefore, direct contact of nicotinamide with the polyphenol plant extract and the vitamin C active component in the storage period and the use period is reduced, the problems that three components in an existing compound system are chemically incompatible and poor in stability, efficacy and mildness are difficult to consider, and efficacy is attenuated after long-term storage are solved, and the comprehensive requirements of consumers for whitening products are met.

The utility model provides a kind of wind power yaw system brake disc pneumatic cleaning assembly.The wind power yaw system brake disc pneumatic cleaning assembly includes multiple brakes and multiple the cleaner that are side by side in the bottom of cabin, and brake disc is arranged at the top of tower tube, the brake includes brake shell, piston and friction plate being arranged in its inner side, and hydraulic connector being arranged in its outer side, the cleaner includes cleaning shell, spray head being arranged in its inner side, and gas supply connector being arranged in its outer side, the structure of brake shell and the cleaning shell is consistent.The wind power yaw system brake disc pneumatic cleaning assembly provided by the utility model solves the problem that the existing wind power yaw system brake disc cleaning assembly is not effective.

The invention discloses a mobile phone shell production defect detection method and system based on AI vision, and relates to the technical field of automatic detection.The method comprises the steps that a surface image of a mobile phone shell is collected through an industrial camera, posture angle information of the mobile phone shell in the surface image is extracted, image correction is conducted on the surface image, and a regular mobile phone image is obtained; constructing a local analysis neighborhood and calculating a directional texture response component to form a texture response graph; comprehensive texture response intensity Rz is calculated in the local neighborhood and energized, and local texture energy Et is obtained for texture disturbance evaluation; and if abnormal disturbance exists, an energy aggregation analysis area is constructed in the center of the disturbance area, the texture energy space aggregation degree Ce is calculated, and then the texture energy spatial aggregation degree Ce and local texture energy Et are combined to fit a texture energy response value Me for texture energy state evaluation. According to the method, spatial quantitative analysis and aggregation degree quantification of texture changes are realized, and the method is suitable for online visual defect screening of a mobile phone shell with a complex structure on a high-speed assembly line.

The invention discloses a mold pressing device and process based on honeycomb paperboard and glass fiber compositing, and relates to the technical field of composite material mold pressing, the mold pressing device comprises a rack, a machine cover is fixedly installed above the rack, three mold pressing assemblies of the same structure are sequentially arranged on the rack in the feeding direction, and each mold pressing assembly comprises an upper mold plate and a lower mold plate; and the lower template comprises a lower bottom plate, a lower heating assembly with the same structure as the upper heating assembly is arranged in the lower template, and when the lower template is driven to a mold pressing station, the upper template and the lower template are accurately and correspondingly arranged to form a closed mold pressing space so as to complete the composite mold pressing operation of the honeycomb paperboard and the two layers of glass fibers. The three mold pressing assemblies of the same structure are arranged on the rack in the feeding direction, continuous composite mold pressing operation of honeycomb paperboards and glass fibers can be achieved, the production efficiency is greatly improved, meanwhile, the three mold pressing assemblies are consistent in structure and convenient to debug and maintain, and the equipment operation and maintenance cost is reduced.

The present application relates to a kind of port knowledge graph construction method based on multi-modal data fusion, it is related to atlas construction technical field, including the following steps, port business text, monitoring image and equipment sensing data are synchronized according to time stamp, and mapping to three-dimensional grid, generate space-time coordinate matrix;Accordingly, image pixel area is converted into physical size, and entity boundary profile is extracted;Combined with business text analysis structured field, splicing generation entity attribute label;Using label association equipment sensing sequence's running track, constructs entity relationship topology;For the multiple-source overlapping node of the same physical entity, through confidence comparison and deviation elimination, fusion is only entity node;Finally, based on the node, topology is reorganized by level edge link, forms port knowledge graph, solves the technical problem that existing technology cannot construct structure consistent, semantic accurate unified knowledge graph, restricts the improvement of the overall perception, intelligent analysis and collaborative decision-making ability of port operation state.