27results about How to "Precise structure" patented technology

The invention discloses a scale and structure consistency image generation method fusing three-dimensional geometric prior, and belongs to the technical field of computer vision and image generation. The method comprises the following steps: acquiring a scene image and depth information corresponding to the scene image, reconstructing a scene point cloud containing pixel space coordinates and color information, acquiring a colored point cloud of an object to be inserted, placing the colored point cloud at a specified position of the scene through rigid body transformation, and unifying a coordinate system with the scene point cloud; projecting the transformed object point cloud to an image plane through a camera model, determining a visible point according to the depth, and constructing an insertion region mask to remove pixels of a region corresponding to a scene; then constructing a multi-channel geometric structure priori graph containing color, depth and other information, and splicing the multi-channel geometric structure priori graph with the cleared scene image to form a diffusion type generation model input; and finally, generating an image under geometric prior guidance, ensuring that the inserted object is consistent with the original scene in the aspects of position, scale, perspective and the like, solving the problem of insufficient geometric consistency of the existing method, and realizing image content insertion with an accurate structure and real vision.

The application belongs to the technical field of computer vision, and discloses a window frame structure extraction method and system based on image segmentation and multi-image fusion, which comprises the following steps: obtaining an orthographic window image of a building facade, and performing first preprocessing on the orthographic window image; wherein the first preprocessing comprises window clustering grouping and super-resolution processing; performing window frame segmentation on the first preprocessed orthographic window image based on an image segmentation algorithm to obtain a segmented window frame mask; fusing the window frame masks of the same cluster based on a multi-image fusion algorithm to generate a window frame fusion mask; extracting the geometric parameters and color parameters of the window frame fusion mask; and obtaining a target window frame structure according to the extracted geometric parameters and color parameters; through the steps of the image segmentation algorithm, the multi-image fusion algorithm, the geometric parameter and color parameter extraction, etc., the window frame structure corresponding to the orthographic window image can be accurately extracted.

The invention relates to the technical field of financial data analysis, in particular to an interactive financial data retrieval and analysis system based on big data. Comprising a data access module, a data unification module, a semantic understanding and intention recognition module, a retrieval execution module, a financial analysis module and an interactive visualization module. The system can access financial information from multi-source data and perform cleaning, standardization, main data alignment and management to generate data for query and analysis. Query intentions and entities are recognized through natural language analysis, structured semantic representation is constructed, and multi-dimensional aggregation, backtracking and predictive analysis are achieved. And the retrieval execution module and the financial analysis module cooperate to ensure that the result is reproducible and credible. And the interactive visualization module dynamically presents the analysis result. According to the method, accurate understanding and structured representation of natural language query of the user are realized, so that financial data retrieval can quickly respond to the intention of the user, the query accuracy and efficiency are improved, and the reliability and precision of financial decisions are improved.

The embodiment of the application relates to an algorithm and a device of a Bayesian classifier of a non-uniform background, which are applied to an underwater active sonar system, the algorithm comprising: obtaining underwater data to be measured and auxiliary data through the active sonar system; the number K of the auxiliary data is greater than 0; modeling classification of the unknown covariance matrix structure into a binary hypothesis testing problem; hypotheses of the binary hypothesis testing problem comprise H i Wherein i=0, 1, H0 is a case that the unknown covariance matrix is a complex conjugate symmetric matrix; H1 is a case that the unknown covariance matrix is a real symmetric matrix; a Bayesian model is set, the Bayesian model comprising a complex inverse Wishart random matrix and a real inverse Wishart random matrix; a classifier for distinguishing the two hypotheses is obtained by using a minimum error probability criterion.

The application belongs to the cross field of nanomaterials and coordination chemistry, and specifically discloses a near-infrared responsive photothermal silver-palladium nanocluster material, a preparation method and application in near-infrared photothermal conversion. 362 H 270 Ag 20 Cl4F 12 P8Pd5Sb2, which is abbreviated as Ag 20 Pd5(4‑EBP) 18 (DPPP)4(SbF6)2·2CH2Cl2, belongs to a monoclinic system, and a space group is P21 / n, a =16.228(13)Å, b =40.670(3)Å, c =25.941(2)Å, α=90°, β =100.283(2)°, gamma =90°, V=16846(2)Å 3 , and a molecular weight is 8170.22 Da. The preparation method has short process flow, simple operation, and raw materials are easy to obtain. The photothermal silver-palladium nanocluster has a high photothermal efficiency of 73.25% under 915 nm (0.6 W / cm 2 ) laser excitation, and has good application prospect.

The utility model discloses a fire vehicle -mounted electric rubber dinghy platform relates to fire equipment field, including bottom plate, electric capstan and manual capstan, and the bottom plate top one side is hinged with the storage platform through the rotating shaft, and the bottom plate, electric capstan and manual capstan are all installed at the top of the external fire engine, and the bottom plate includes bottom plate main part, and one side fixed connection of bottom plate main part has hydraulic rod, and hydraulic rod is equipped with two groups and is fixed at one side of bottom plate main part, and electric capstan includes capstan main part, and this platform can utilize the bundle rope and fix electric rubber dinghy on the storage platform surface, when using, can manually rotate and lift the storage platform, utilizes electric capstan to spread the storage platform, and the unfolded storage platform is contacted with the ground, and the fireman is convenient to take down electric rubber dinghy and uses, and the whole operation process is fast and efficient, can all -round improve the efficiency, safety and adaptability of water area rescue action, better guards the life and property safety of the people.

The utility model relates to the field of SF6 gas micro-water density, and discloses auxiliary calibration equipment for an SF6 gas micro-water density sensor, which comprises a sensor, the sensor is placed in a box body, the inner bottom surface of the box body is fixedly connected with a mounting seat, the sensor is clamped in the mounting seat, an additional box is fixedly connected to one side, corresponding to a gas inlet pipe of the sensor, outside the box body, and the additional box is connected with the sensor. A multi-parameter gas calibration structure is arranged in the additional box, a sealing connection structure is arranged between a gas inlet pipe of the sensor and the multi-parameter gas calibration structure, a data collecting and processing system is installed on one side in the box body, and the top end of the sensor is connected with the data collecting and processing system in a wiring mode. A temperature control system is installed on the side, opposite to the data collecting and processing system, in the box body, multi-parameter gas calibration structures such as the humidity generator, the standard gas tank and the pressure calibration instrument are integrated in the additional box, the gas input pipeline layout, the precise pipeline design and the sealing connection structure are optimized, and gas leakage is effectively avoided.

The application discloses a kind of analysis and prediction methods of high-frequency noise of pod propeller, comprising the following steps: S1, obtain the flow field original data and corresponding high-frequency noise monitoring data under the working state of pod propeller, and pre-process;S2, based on the separated vortex model, construct flow field-noise coupling analysis framework, set the time step and calculation frequency matched with actual working condition, the present application relates to ship propeller noise analysis and prediction technical field.The analysis and prediction method of high-frequency noise of the pod propeller, by constructing flow field-noise coupling analysis framework, the pre-processed flow field data are processed, the vortex structure characteristics of flow field can be captured, and based on the correlation mechanism of vortex structure and noise generation, the contribution of each vortex unit to high-frequency noise is accurately calculated, the vortex unit of dominant noise source is screened, and the dynamic positioning of high-frequency noise source is realized in combination with its space-time position information, which helps to understand the root of noise generation.

This invention discloses a non-inertial navigation mobile indoor volume measurement and 3D reconstruction method, equipment, and computer-readable medium, belonging to the interdisciplinary field of precision engineering measurement, computer vision, and digital twin technology. The method includes the following steps: S1, dynamic scanning data acquisition; S2, adaptive data augmentation and cleaning; S3, trajectory and depth calculation based on motion continuity constraints; S4, cross-sectional topology construction and closure constraints; S5, 3D solid modeling preserving volume characteristics; and S6, precise volume calculation based on the solid model. This invention employs the aforementioned non-inertial navigation mobile indoor volume measurement and 3D reconstruction method, equipment, and computer-readable medium, and through a single-line 2D LiDAR combined with innovative algorithms, achieves mobile high-precision volume measurement and high-fidelity 3D reconstruction of irregular indoor spaces under low-cost hardware conditions.

The application discloses a kind of rigid PCB metal hole copper-embedded structure visual detection systems, it is related to hole copper-embedded structure detection field, comprising: data acquisition module, for solving light source direction vector and collecting multi-angle image sequence;Specular reflection optimization module, for solving the unit normal vector distribution map of each point of copper-embedded structure surface and relative height map;Topographic feature module, for constructing three-dimensional topographic feature vector;Reflectivity correction module, for dynamically eliminating the overall drift of copper surface reflectivity;Texture feature module, for extracting the texture feature vector of copper-embedded hole edge;Defect identification module, for outputting defect type and corresponding confidence;Detection priority module, for determining the recheck priority and dynamic determination threshold of each copper-embedded structure. Through iterative rejection specular reflection pollution, high-precision three-dimensional reconstruction is realized, and the detection robustness and accuracy of high-reflectivity copper-embedded structure are improved by combining reflectivity self-calibration and multi-modal feature fusion.

The utility model discloses an integrated heating radiator head relates to the field of heating radiator head. Integrated heating radiator head includes: the flow pipe, and the flow pipe is small -bore pipeline, connecting casing, the both ends of symmetry fixed connection in flow pipe, the both sides of connecting casing symmetry have the connector, wherein, connecting casing, connector and flow pipe between through pouring integrated setting, the utility model discloses an integrated pouring forming process, solves the quality and the aesthetic pain point of traditional welding type, and through small -bore flow pipe again, realizes the heating effect optimization of water -saving, speed -up, increase efficiency, on the structural innovation and performance promotion of heating radiator head, has the practical value and market advantage of remarkable.

The application discloses an electric heating system with cold and hot air prevention functions and a control method thereof. The electric heating system comprises a shell, a heating body, a cooling fan, a power supply circuit, a cold air prevention control circuit and a hot air prevention control circuit. The heating body is fixedly installed in the shell, and the cooling fan is installed at an air inlet of the shell. The heating body and the cooling fan are connected in parallel to the power supply circuit. The cold air prevention control circuit and the cooling fan are connected in series to a cooling fan power supply branch, and are used for controlling the cooling fan power supply branch to be disconnected when the temperature of the heating body is less than a set cold air prevention temperature. The hot air prevention control circuit is connected in series to the power supply circuit, and is used for controlling the power supply circuit to be disconnected when the temperature at an air outlet reaches a hot protection temperature. The electric heating system opens the fan through an internal real temperature, solves the defect that the cold air prevention effect of a conventional delay is poor, can prevent the external environment from being affected by the overheating of the air outlet temperature, controls the air outlet temperature of the electric heating system within a set range, improves the user comfort experience, and ensures the safe operation of the electric heating system.

The utility model belongs to the technical field of motorcycle engines, and relates to a gear shifting structure of a motorcycle engine, which comprises a gearbox body, a driving shaft in transmission connection with a crankshaft and an output shaft in transmission connection with a load are arranged in the gearbox body, and the driving shaft is in transmission connection with the output shaft through a gear shifting mechanism. The gear shifting mechanism comprises a gear set and a shifting fork changing the connecting state of the gear set, a stepping motor is arranged on the outer side of the gearbox body, a crank is arranged on a motor shaft of the stepping motor in a sleeved mode, the crank is hinged to one end of a connecting rod, the other end of the connecting rod is hinged to the shifting fork, and the shifting fork is arranged on a guide rod in a sliding mode. The guide rod is parallel to the driving shaft and the output shaft, and the stepping motor drives the shifting fork to slide in the axial direction of the guide rod so as to complete the gear shifting action. According to the gear shifting structure of the motorcycle engine, automatic gear shifting of a motorcycle can be achieved.

The present application relates to the technical field of part processing, and discloses a forging forming method and tool for large thin-wall drum-shaped parts, comprising the following steps: step 1, designing a forging drawing according to the size of the part; step 2, designing a tire mold tool according to the forging drawing; the tire mold tool comprises a hollow forming tire mold, an upper pad mold and a punching tool; step 3, determining the process parameters of staged heating and the forging process parameters of each step; step 4, performing forging forming processing according to the steps, and obtaining a forging part. The present application can achieve high product processing quality, help to improve processing efficiency and reduce processing cost.

This invention discloses a multicolor fluorine magnetic resonance imaging probe based on a metal-organic cage. First, a rhodium-based metal-organic cage is formed by the self-assembly of a fluorinated isophthalic acid ligand and a rhodium salt, covalently introducing the first characteristic fluorine signal. Then, leveraging the coordination ability of the rhodium nodes in the rhodium-based metal-organic cage, it coordinates with a fluorinated pyridine derivative, introducing a second characteristic fluorine signal. This results in a multicolor probe containing both fluorine signals within the metal-organic cage, ensuring that all signals exhibit completely consistent pharmacokinetic behavior in vivo. This achieves true multi-channel synchronous imaging, solving the fundamental problem of spatiotemporal asynchrony of mixed probe signals. The probe system of this invention features precise structure, strong design flexibility, high imaging sensitivity, and multicolor imaging capabilities, providing a new solution for existing fluorine probes with single-channel imaging or complex structures. It also provides a new tool for in vivo multi-target biological imaging and dynamic monitoring.

This invention relates to the field of pharmaceutical and chemical intermediates technology, and discloses a novel class of substituted phenylethyl-O-β-D-glucuronide compounds. These compounds are generated using substituted phenylethanol as a substrate and 1-fluoro-D-glucuronic acid as a glycosyl donor, catalyzed by β-glucuronyltransferase derived from *E. coli*. The process yield can reach over 95%, and the reaction conditions are mild and environmentally friendly. Substituted phenylethyl-O-β-D-glucuronide can be efficiently used for the determination of β-glucuronidase activity, and its applications are wide-ranging and reliable. The product can meet the needs of pharmaceutical, food, and other fields for β-glucuronidase activity control. It can be used for enzyme activity detection in the auxiliary diagnosis of clinical diseases, and also for enzyme quality control in fruit juice clarification processes in the food industry, drug precursor activation, and glycan structure analysis in the biopharmaceutical field. The product structure has been verified to be accurate by mass spectrometry and 1H NMR spectroscopy, and enzymatic hydrolysis experiments have confirmed its reliable application.

The utility model discloses a kind of COB light source and its system along black rail line adjustment color coordinate, it is related to LED lighting technical field.The utility model along black rail line adjustment color coordinate COB light source includes substrate and light emitting module group, and substrate is equipped with middle light emitting area and the auxiliary light emitting area for emitting white light, auxiliary light emitting area is closed annular structure and is surrounded in the middle light emitting area outer;Light emitting module group is equipped in middle light emitting area, and light emitting module group includes several first color temperature module, several second color temperature module and several third color temperature module;First color temperature module, second color temperature module and third color temperature module are spaced apart and are alternately distributed in middle light emitting area;White light color temperature emitted by auxiliary light emitting area is 4000K-6000K, and the color temperature of light emitting module is 1800K-8500K.The utility model adds white light channel to obtain fine color coordinate adjustment capability, can realize accurate positioning of color coordinate on black rail line, color temperature adjustment precision is high, and spectral coverage is large.

This invention discloses a piezoelectric MEMS device, its fabrication method, and its applications, belonging to the field of microelectromechanical systems (MEMS) technology. The fabrication method includes: preparing an SOI wafer; performing PSG spin-coating annealing and / or metallization modification on the device layer surface to form a conductive seed layer; depositing a piezoelectric layer; simultaneously etching the insulating layer, modified device layer, and piezoelectric layer using a specific mixed gas or pulse modulation process; forming a metal electrode layer and a bonding metal layer; and bonding and integrating with a TSV structure. This invention replaces traditional metal electrodes with metallization modification, avoiding electrode fatigue and aging, and improving device reliability; the use of single-mask synchronous etching and vapor phase release technology eliminates overlay and bonding errors, reducing process complexity and cost, making it suitable for high-performance sensors, ultrasonic detection, audio, and smart hardware.

Embodiments of the present disclosure disclose a data processing method and device, electronic equipment, storage medium and program product. The method comprises: receiving a data processing text input by a first user; performing parameter analysis on the data processing text to obtain a processing logic parameter and a business scope parameter; constructing a target prompt word according to the processing logic parameter, inputting the target prompt word into a data processing model to obtain a tool calling instruction; generating an executable target query statement according to the tool calling instruction and the business scope parameter, executing the target query statement to determine a target processing result corresponding to the data processing text, and returning the target processing result as feedback information. The technical solution realizes accurate analysis and structured conversion of user data processing requirements; and by isolating sensitive data and accurately controlling data access permissions, data leakage and unauthorized access are effectively prevented, resource consumption is reduced, and the accuracy, security and compliance of data processing are ensured.

The application discloses a synthesis method of xylulose-5-phosphate. The method takes a commercially available compound 1 as a starting material, and obtains the target product xylulose-5-phosphate through seven independent step-by-step reactions. The intermediates are compound 2 to compound 7 in turn. The synthesis method provided by the application is a step-by-step reaction, each reaction is an independent unit, the process parameters are accurately controllable and suitable for industrial operation errors, the side reactions are few, and the product selectivity is high. The method innovatively uses tetrabenzyl pyrophosphate as a phosphorylation reagent, replaces expensive reagents, and reduces the synthesis cost. The reaction condition of the method is mild, the operation is convenient, the crude compound 2 and the crude compound 4 can be directly used in the next step reaction, the post-treatment process is simple, and the route is simple and easy to be industrialized. The synthesis method of xylulose-5-phosphate has stable yield and accurate product structure, is suitable for large-scale industrialized preparation of xylulose-5-phosphate, and can effectively meet the market demand in the field of biological medicines.

The utility model discloses a temperature measuring device for high-viscosity fluid, which is used for improving the temperature uniformity of the high-viscosity fluid after heat exchange and comprises a heat preservation shell, a temperature measuring device and a temperature measuring device, the mixer is fixed in the thermal insulation shell at the front section of the temperature sensor and is used for mixing the measured high-viscosity fluid and improving the temperature uniformity of the measured high-viscosity fluid; a plurality of temperature sensor joints are uniformly fixed on the thermal insulation shell at the rear section of the mixer; the temperature sensors are fixed in the temperature sensor connectors, and the fixing depth is adjustable. According to the utility model, the problem that the temperature after heat exchange is not uniform and cannot be accurately measured due to higher fluid viscosity and lower flow velocity can be avoided.

The utility model relates to the technical field of steel bar truss laminated slab, specifically relates to a kind of installation structure of large-span prestressed steel bar truss laminated slab, including laminated slab body, distribution steel bar, installation component, steel bar truss, fixed component and connecting rod;The laminated slab body is set to rectangle, the distribution steel bar is installed on the two side surfaces of laminated slab body, and installation mode is set to welding and riveting, the installation component is installed on the upper surface of laminated slab body, the steel bar truss is installed on the upper surface of installation component, the steel bar truss is provided with 3, and three steel bar trusses are installed in the three-point setting of equilateral triangle, the fixed component is installed between steel bar truss, and installation mode is set to welding, the connecting rod is installed between multiple fixed components.

The present application belongs to the technical field of automobile accessories, and particularly relates to a kind of automobile refitting instrument screen assembly, comprising: connecting frame and refitting panel, connecting frame is used to bridge installation in original car instrument installation site, connecting frame is equipped with the space for accommodating original car instrument dial and the positioning connection structure for being detachably positioned with original car instrument installation site;Refitting panel is connected to the side of connecting frame away from original car instrument, and display panel is arranged on refitting panel, and display panel is located between connecting frame and refitting panel. Plug rod is arranged on display panel, and slot is arranged on connecting frame, and the plug-in cooperation realizes the pre-positioning of refitting panel. Thin sheet connecting piece is arranged on connecting frame, and the distance between connecting frame and refitting panel can be adjusted by replacing connecting pieces and plug rods of different specifications, and different vehicle models can be adapted. The present application does not need to remove original car instrument or break the line refitting, realizes lossless reversible installation, and has the advantages of high assembly efficiency and strong versatility.

The utility model relates to wafer automation technical field especially is a kind of wafer clamping mechanism, for with the clamping mechanical arm connection of wafer loading equipment, including the jaw for clamping wafer, the drive assembly for making the jaw clamping or release wafer and the waterproof seal box for preventing water infiltration drive assembly, the waterproof seal box is located between clamping mechanical arm and jaw;The waterproof seal box includes the loading box of top end opening and the sealing upper cover plate of buckling installation in loading box top end, the loading box is driven connection with the clamping mechanical arm, the drive assembly is installed in loading box.The utility model is applicable to humid working condition transmission operation, structure is accurate, adopts double waterproof groove design protection clamping mechanism, and waterproof sealing effect is better.

The utility model discloses a prefabricated part preformed hole positioning device which is installed on a mold of a prefabricated part and comprises a positioning frame, a fixing piece and a plurality of embedded sleeves. The positioning frame is fixed to a mold through the fixing piece and extends into a to-be-poured area of the prefabricated part. The positioning frame comprises a first positioning plate, a second positioning plate and a fastening assembly, the first positioning plate and the second positioning plate are provided with a plurality of positioning holes corresponding to each other in the normal direction, and the pre-embedded sleeves are arranged in the positioning holes in a penetrating mode. And the diameter of the positioning hole is equal to the outer diameter of the embedded sleeve. The fastening assembly comprises a fixed chuck arranged on the periphery of the positioning hole, a sliding clamping plate arranged on the first positioning plate or the second positioning plate in a sliding mode and a locking piece. A movable chuck matched with the fixed chuck is arranged on the sliding clamping plate; the locking piece is at least used for locking the buckling state of the movable chuck and the fixed chuck; the device is provided with a calibration seam in a fitting area of the device and the mold.

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.