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30results about How to "Improve structural rationality" patented technology

Multi-modal semantic topology and constraint reasoning CAD sequence generation method based on time scale

ActiveCN121787291AEnhancing Semantic ConsistencyImprove structural rationalityDesign optimisation/simulationConstraint-based CAD
The invention discloses a multi-modal semantic topology and constraint reasoning CAD sequence generation method based on a time scale, and belongs to the technical field of crossing of computer aided design and artificial intelligence. According to the method, an end-to-end automatic generation framework from multi-modal input to an editable parameterized CAD model is constructed, and semantic consistency, structural rationality and logic correctness of a generated sequence are remarkably improved; according to the method, multi-source data such as images, sketches and point clouds can be deeply fused, a design intention is accurately captured through feature extraction of time scale perception and dynamic topological graph evolution, and meanwhile, the problems of error accumulation and logic drift in a traditional autoregression model are effectively solved through a sequence synthesis mechanism guided by grammar and geometric constraints; and in combination with a geometric feedback driving optimization engine, efficient and steady generation of the parameterized model is realized, so that systematic breakthrough in the aspects of generation quality, automation degree and cross-scene applicability is realized, and a key technical support is provided for intelligent manufacturing and intelligent design.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Dual-mode synchronous power generation device and piezoelectric gantry

The dual-mode synchronous power generation device comprises a shell, and a shifting fork mechanism, a horizontal movement arm, a cantilever power generation module and a stack power generation module are arranged in the shell; the horizontal moving arms are arranged in the shell, the stack power generation modules are arranged at the two ends of the shell and located at the ends of the motion trail of the horizontal moving arms, the horizontal moving arms are connected with the wind power collecting device through the shifting fork mechanism, and the shifting fork mechanism is used for converting rotary motion of the wind power collecting device into linear reciprocating motion of the horizontal moving arms. The horizontal movement arm can apply horizontal pressure stress to the stack power generation module; the cantilever power generation module comprises a plurality of cantilever piezoelectric units which are arranged at intervals, each cantilever piezoelectric unit comprises two cantilevers, the two cantilevers are symmetrically arranged along the horizontal movement arm, the two ends of each cantilever are connected with the shell and the horizontal movement arm, and the horizontal movement arm can enable the cantilever piezoelectric units to perform wing flapping actions; the dual-mode synchronous power generation device is excellent in energy collection efficiency, environmental adaptability, economic benefits and the like, and has wide application prospects and popularization values.
Owner:SHANDONG HI SPEED COMPANY

Vertical rotary cracking incinerator with fire grate

The utility model relates to the technical field of rotary cracking incinerators, in particular to a vertical rotary cracking incinerator with a fire grate, which comprises an incinerator body, a discharging pipeline is mounted in the center of the outer wall of the incinerator body and is communicated with the incinerator body, the rotary fire grate is mounted in the incinerator body, and the fire grate is communicated with the discharging pipeline. A plurality of contact rollers are mounted on the periphery of the rotary grate through a bracket; when a certain amount of waste is accumulated on the rotary fire grate, an electric telescopic rod is started to enable a first material blocking ring and a second material blocking ring to rotate mutually, so that a first discharging opening and a second discharging opening are aligned to each other, and at the moment, the waste can enter a discharging pipeline through the first discharging opening and a shifting rod; and under the stirring of the track stirring plate, the waste enters the material collecting box through the feeding pipeline, so that the collection of the accumulated waste which is not easy to crack on the rotary grate is realized, the bad influence of the waste accumulation on the gas flow in the furnace and the gap discharging of the grate is prevented, and the practicability of the device is improved.
Owner:SHANGHAI BAODA ENVIRONMENTAL TECH CO LTD

A fully automatic chip mounter for liquid crystal display modules

The present invention provides a fully automatic chip placement machine for liquid crystal display modules, which is applied to the field of display module chip placement. The present invention flexibly switches the connection status between the upper and lower ends of the vertical cavity and the upper airflow channel 1 and the lower airflow channel 1 through the adjustment of the upper control component and the lower control component. With the help of the air pressure effect when the airflow flows, the valve plate in the vertical cavity is controlled to drive the auxiliary suction rod to move up and down for adjustment, so that when grabbing large-sized components, multiple auxiliary suction rods move down to be flush with the main suction rod, and the components are adsorbed together. When grabbing small-sized components, multiple auxiliary suction rods move up, and a single main suction rod is alone at the bottom to adsorb the components. There is no need to be equipped with placement heads of various specifications, which is beneficial to reducing the cost of manufacturing and using the chip placement machine, and there is no need to frequently switch different placement heads, which improves the efficiency of the device when mixing patches to a certain extent.
Owner:SUZHOU IND PARK HEGUANG TECH CO LTD

Stainless steel gate valve

The utility model relates to the technical field of gate valves, in particular to a stainless steel gate valve which comprises a valve body shell, a valve plate is installed on an inner rail of the valve body shell in a sliding mode, a threaded sleeve is fixedly connected to the center of the top of the valve plate, a control lead screw is installed in the threaded sleeve in a threaded mode, and one end of the control lead screw is fixedly connected with a first circular plate. The outer wall of the first circular plate is clamped in a middle circular groove of the valve body shell; a discharging connector on the discharging cover is communicated with a threaded sleeve, so that the lubricating oil can be coated on the passing area in the process that the rotating control screw rod controls the relative position change of the valve plate on the rotating control screw rod; in this way, the outer wall of the control lead screw can be subjected to oil coating rust prevention treatment in the process that the control lead screw is rotated to control lifting of the valve plate, the situation that the outer wall of the control lead screw is rusted is reduced, the smooth degree in the process that the control lead screw is rotated to control opening and closing of the gate valve is guaranteed, and the practicability of the device is improved.
Owner:WUXI SHENGXIN MASCH TECH CO LTD

A method for generating bird's-eye view images of reservoir landscapes based on a stable diffusion large model

This invention relates to the field of image generation technology, and more particularly to a method for generating bird's-eye view images of reservoir landscapes based on a Stable Diffusion large model. The method includes the following steps: preprocessing acquired reservoir landscape images and semantically annotating them based on water conservancy terminology to construct an image-text pairing dataset; training a pre-trained Stable Diffusion model, incorporating LoRA adaptation parameters into its UNet attention layer, using the image-text pairing dataset to generate a target feature image; and updating the LoRA adaptation parameters based on the difference between the target feature image and the reservoir landscape image to obtain a LoRA model for the reservoir landscape bird's-eye view image. This invention achieves structurally controllable and semantically consistent reservoir landscape generation by fusing structural reference constraints and semantically weighted alignment and introducing LoRA modulation.
Owner:GUANGDONG ZHURONG ENG DESIGN CO LTD

A rotary tooling for circumferential welding of anti-collision pipes

This utility model relates to the technical field of anti-collision pipe processing equipment, specifically a rotary fixture for circumferential welding of anti-collision pipes. It includes a fixture base frame, with an L-shaped support frame symmetrically fixed to the top of the base frame near its center. A through hole for the support plate is opened at the center of the side wall of the L-shaped support frame. Clamping assemblies are symmetrically installed above the fixture base frame, each clamping assembly including two positioning ring plates. The clamping and fixing of the anti-collision pipe to be welded is achieved through the mutual cooperation between the structures belonging to the clamping assemblies on both sides of the fixture base frame. The two positioning ring plates are respectively installed inside the through hole of the support plate and the sliding ring plate. This allows the anti-collision pipe to rotate as a whole with the positioning ring plates, the expansion connecting rod, and the extrusion clamping plate after the positioning ring plates clamp and fix the anti-collision pipe close together, replacing the rotation process of the welding torch during circumferential welding. This results in higher operating efficiency and increases the working efficiency of circumferential welding of anti-collision pipes.
Owner:WUXI SHENBAO AUTOMOBILE STEEL PIPE CO LTD

A wafer map defect detection model generation method driven by data and knowledge fusion

ActiveCN121962157BImprove targetingImprove structural rationality
This invention discloses a data and knowledge fusion-driven method for generating wafer image defect detection models. First, a process-defect-module adaptation knowledge graph is constructed, and defect feature condition vectors and module priority vectors are generated based on directed knowledge reasoning along the defect-process-module adaptation chain. Second, a set of functional module agents is constructed, and a multi-agent reinforcement learning model is established to generate the optimal detection model structure under module priority and order constraints. Subsequently, the optimal detection model structure is encoded, a conditional generative adversarial network is constructed, and convolutional neural network parameters are generated based on the structure encoding vector and defect feature condition vectors. The optimal model parameters are then obtained through adversarial optimization. Finally, the optimal model parameters are loaded into the optimal detection model structure to generate the wafer image defect detection model. This invention achieves the collaborative generation of the detection model structure and parameters, improving the model's adaptability under different process conditions and multi-form mixed defect scenarios.
Owner:DONGHUA UNIV

A mathematical question recommendation method and system based on learning online teaching evaluation

PendingCN122694288AHave continuityTraceable
The present application relates to the field of test questions recommendation, in particular to a mathematics test question recommendation method and system based on learning online teaching evaluation. The method comprises the following steps: collecting student historical behaviors based on an online learning platform, performing data cleaning, and generating learning behavior sequences; identifying answered error test questions based on the learning behavior sequences, classifying and labeling, and generating a set of error question labels; performing error question label sorting analysis and error question similarity identification on the set of error question labels to obtain error cause weak points; performing correlation analysis based on the error cause weak points to generate a weak point correlation network; performing adaptive test question recommendation and progressive difficulty planning based on student ability evaluation portraits, and outputting personalized test question recommendation results. The present application realizes the structured quantification of user online learning state and the accurate matching of adaptive test questions, significantly improving the teaching evaluation accuracy and the efficiency and quality of test question recommendation.
Owner:赣州市金星小学

Integral angle hard seal ball valve

ActiveCN224742959UPrevent rotational inefficienciesGuarantee opening and closing efficiency
The utility model relates to ball valve technical field, specifically is a kind of integrated oblique hard sealing ball valve, including valve body, the cavity of valve body is provided with ball, the fluid passage is passed through and is established in the center of ball, the outer wall of ball is provided with linkage recess, the outer wall of valve body is connected with oblique valve stem sleeve, the inner wall between oblique valve stem sleeve is installed with valve stem body, and the one end lug of valve stem body and linkage recess are mutually clamped, the one end round groove of valve stem body is externally clamped with split ring, and the split ring and the recess between the lower part of oblique valve stem sleeve are provided with wear-reducing pad;Through the mutual cooperation between oblique valve stem sleeve and split ring, wear-reducing pad, pressing plate and cavity filler in valve body, valve stem body is installed, there is certain inclination angle between valve stem body and valve body, and then prevent the situation that the rotation efficiency of valve stem body is low due to the narrow space above installation, guarantee the opening and closing efficiency of ball.
Owner:JINGJUN VALVE CO LTD

Ultra-high performance concrete suction pile foundation structure of offshore platform

The invention discloses an ultra-high-performance concrete suction pile foundation structure of an offshore platform, which belongs to the technical field of ocean engineering and comprises a pile foundation main body, the pile foundation main body is formed by pouring ultra-high-performance concrete, a central interlayer is arranged in the side wall of the pile foundation main body, and a plurality of holes arranged in an array are circumferentially formed in the central interlayer. On one hand, the ultrahigh strength, high toughness and excellent durability of the ultrahigh-performance concrete material are fully utilized, and the problems that a traditional steel pile is prone to corrosion and frequent in maintenance are fundamentally solved; and on the other hand, material distribution is optimized through hole design, the ultrahigh pressure resistance and bending resistance of the pile foundation are guaranteed, and meanwhile the self weight of the structure is obviously reduced. According to the design, collaborative improvement of high strength, high durability and light weight is achieved, the structure is more complete, stress is more reasonable, the transportation, installation and full-life-cycle maintenance cost is greatly reduced, and a more efficient and reliable foundation support is provided for an ocean platform.
Owner:SUN YAT SEN UNIV +1

Mechanism-data driven method, system and terminal for evaluating ecological carbon sink in sea-land interlaced zone and storage medium

PendingCN122617429AImprove structural rationalityImprove parameter interpretability
The present application relates to the technical field of carbon sink estimation, and discloses a mechanism-data driven coastal-estuarine ecocarbon sink evaluation method, system, terminal and storage medium, the method is around the idea of mechanism diagnosis-model construction-regional application, a mechanism constraint and data driven combination of coastal-estuarine ecosystem carbon sink estimation framework is constructed, a preset algorithm is used to obtain GPP sequence, Re sequence and NEP sequence, the key environmental driving law is identified by combining the generalized additive model, the GPP estimation model and Re response function are optimized, and the NEP estimation result is further coupled, the effective connection between empirical law identification and process parameterization expression is realized. The present application firstly performs mechanism identification driven by data, and then writes the key law back to the process expression, improves the model structure rationality, parameter interpretability and regional applicability, and improves the carbon sink evaluation accuracy of the coastal-estuarine ecological region.
Owner:HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)

Simulation test method and device for dexterous hand and medium

The invention discloses a simulation test method for a dexterous hand. The simulation test method comprises the following steps: constructing a finite element simulation model based on the configuration of the dexterous hand; performing multi-physical-field multi-working-condition coupling simulation on the finite element simulation model to obtain simulation data; verifying the simulation data according to a pre-constructed bidirectional calibration mechanism and experimental data so as to correct the finite element simulation model; and when the corrected finite element simulation model meets a preset condition, outputting a dexterous hand performance evaluation result. By constructing a finite element simulation model, multi-physical field and multi-working-condition coupling simulation is carried out, so that the simulation model can output multi-dimensional performance data, and evaluation limitation is avoided. And meanwhile, aiming at a complex coupling environment in real operation, dynamic feedback optimization of the model is realized through a pre-constructed bidirectional calibration mechanism and experimental data verification, so that simulation data can be directly used for subsequent model iteration, and a stable and reliable dexterous hand simulation test process is realized.
Owner:PAXINI TECHNOLOGY (SHENZHEN) CO LTD

A time-scale-based multi-modal semantic topology and constraint reasoning CAD sequence generation method

ActiveCN121787291BEnhancing Semantic ConsistencyImprove structural rationalityDesign optimisation/simulationConstraint-based CADAlgorithmEngineering
A time-scale-based multi-modal semantic topology and constraint reasoning CAD sequence generation method belongs to the cross technical field of computer-aided design and artificial intelligence. The method constructs an end-to-end automatic generation framework from multi-modal input to editable parameterized CAD model, significantly improving the semantic consistency, structural rationality and logical correctness of the generated sequence; it can deeply integrate multi-source data such as images, sketches and point clouds, and accurately capture the design intent by using time-scale-aware feature extraction and dynamic topology graph evolution, and effectively overcome the error accumulation and logical drift problems in traditional autoregressive models through the sequence synthesis mechanism guided by syntax and geometric constraints, and realize efficient and robust generation of parameterized models combined with the geometric feedback-driven optimization engine, thereby achieving systematic breakthroughs in generation quality, automation level and cross-scene applicability, and providing key technical support for intelligent manufacturing and intelligent design.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

A Uniformly Leaked Dual-Magnetic-Circuit Moving-Coil Loudspeaker

ActiveCN224638179UImprove acoustic performanceImprove structural rationality
This utility model discloses a uniformly vented dual-magnetic-circuit moving-coil loudspeaker, including a frame, a diaphragm voice coil mounted on the top of the frame, a partition assembly mounted on the bottom of the frame's inner cavity, and a resonant cavity on opposite sides of the frame and partition assembly. A partition vent hole is circumferentially formed on the partition assembly, and a frame vent hole is circumferentially formed at the bottom of the frame. This utility model has the advantage of uniform venting, solving the problem that existing moving-coil loudspeakers, during use, do not easily and smoothly expel air from the speaker's interior, and when the diaphragm's vibration amplitude is too large, it easily causes unbalanced diaphragm vibration due to impeded air expulsion.
Owner:NANNING HEAVY HAMMER TECH CO LTD

Liquid injection pipe, engine and vehicle

The utility model belongs to the technical field of vehicles, and discloses a liquid injection pipe, an engine and a vehicle. The liquid injection pipe comprises a connecting pipe section and a liquid injection pipe section. The connecting pipe section is arranged and communicated with an engine body. A liquid injection opening is formed in the end of the liquid injection pipe section, the liquid injection pipe section is rotatably connected to the connecting pipe section, and the direction of the liquid injection opening can be adjusted through relative rotation of the liquid injection pipe section and the connecting pipe section. The liquid injection pipe has flexibility and universality, can be adjusted in form according to different engine arrangements and vehicle models, and is suitable for various vehicle models with different engine arrangements.
Owner:WEICHAI POWER CO LTD

Split multifunctional smokeless electric oven

The invention relates to a split multifunctional smokeless electric oven which comprises an oven shell and an oven cover, the oven shell comprises a base and a hollow middle bearing seat detachably installed on the base, a fan and an oil receiving disc are arranged in the base, and the oven cover, a heat insulation disc and an electric control heating disc are arranged on the middle bearing seat. A baking tray with an oil leakage port or a cooking tray with a closed bottom is arranged on the heating pipe; when an annular inserting piece of the base is upwards inserted into an annular clamping groove of the middle bearing seat, a protruding sleeve of the middle bearing seat is downwards inserted into a positioning sleeve of the base, and a front vertical clamping plate and a rear vertical clamping plate of the base are upwards inserted into a front strip-shaped inserting groove and a rear strip-shaped inserting groove of the middle bearing seat respectively. According to the oil filtering assembly, the assembling efficiency is high, the contact time of oil fume and the oil filtering assembly is long, the oil pumping effect is good, and cleaning is convenient.
Owner:ZHONGSHAN FENGYE ELECTRICAL APPLIANCE CO LTD

Packaging type isolation battery pack

ActiveCN222637525Ufit tightlyImplement location qualificationCell component detailsElectrical batteryMechanical engineering
The utility model relates to the technical field of battery packs, in particular to a packaged isolated battery pack which comprises a shell, a plurality of baffles are mounted in the shell and are equidistantly mounted along the edge direction of the side wall of the shell, clamping blocks are fixedly connected to the outer walls of the two ends of each baffle, and the clamping blocks are matched with clamping grooves in the inner wall of the shell. A mounting opening is formed in the side wall of the baffle; the single batteries placed in the shell are isolated through mutual extrusion between the extrusion rubbers on the different baffles, the extrusion rubbers in the different baffles are installed on the extrusion bottom plates respectively, and the extrusion bottom plates are connected through the elastic telescopic rods, so that the extrusion bottom plates have elastic deviating force within a certain range; and therefore, the extrusion rubber on different baffles can elastically displace within a certain range, the extrusion rubber is packaged to be tightly attached to the single battery, the position of the elastic battery is limited, shaking is prevented, and the structural rationality of the device is improved.
Owner:BULL BATTERY TECH (CHANGZHOU) CO LTD

A monocular image-based three-dimensional lane line detection method, device and medium

PendingCN122598125Aimprove perceptioneffective characterization
A monocular image-based three-dimensional lane line detection method, device and medium, two-dimensional semantic features are extracted from a monocular lane image, and three-dimensional perception features are obtained by using a pre-trained deep model; two-dimensional semantic features and three-dimensional perception features are fused, an initial lane query is enhanced, and a query representation for three-dimensional lane line prediction is obtained; the query representation is iteratively decoded layer by layer, the sampling offset in the decoding process is dynamically adjusted based on the uncertainty parameters obtained by decoding, and the two-dimensional semantic sampling values and three-dimensional perception sampling values obtained by sampling in the decoding process are adaptively weighted and fused to obtain a three-dimensional lane line prediction result; the detection network is trained and constrained based on geometric structure constraints, and the final three-dimensional lane line detection result is output. The present application improves the spatial perception ability, prediction stability and lane structure rationality of monocular three-dimensional lane line detection in complex road scenes without relying on additional depth sensors and depth labeling information.
Owner:NANJING UNIV

Random map area generation method and device, equipment, medium and product

PendingCN121927283ASatisfy design rationalitySolve the difficulty of precise controlVideo gamesEditing/combining figures or textAlgorithmStructure diagram
The embodiment of the invention provides a random map area generation method and device, equipment, a medium and a product, and the method comprises the steps: receiving a pre-configured map generation parameter, and determining a topological structure diagram corresponding to a target area based on the map generation parameter; mapping the topological structure diagram into a map plate corresponding to the target area to obtain a to-be-processed map dividing the target area into at least one sub-area; and adjusting the to-be-processed map based on the region identifier in the map generation parameter, the terrain type corresponding to the region identifier and the corresponding area distribution weight, and generating a target map matched with the map generation parameter. According to the technical scheme, the problem that the adjacency relation in random region generation is difficult to accurately control is solved, and meanwhile, the area error of the generated region is reduced.
Owner:DUOYI NETWORK CO LTD +2

Interface code generation method, layer processing method, device and computing equipment

ActiveCN113391799Breduce constraintsExcellent data description
Embodiments of the present application disclose an interface code generation method, comprising: recognizing a design draft to obtain layer data of a layer of the design draft; performing correction processing on the layer data of the design draft; and generating an interface code corresponding to the design draft based on the layer data after the correction processing. Embodiments of the present application also disclose a corresponding design draft layer processing method and device, a computing device and a storage medium.
Owner:阿里巴巴(中国)网络技术有限公司

Manhole underwater three-dimensional reconstruction method, device and equipment based on sonar ring scanning

PendingCN122618165AAccurate removalRegular spatial distribution
The present application relates to the field of electronic technology, and discloses a method, device and equipment for underwater three-dimensional reconstruction of inspection well based on sonar ring scanning, the method comprising: obtaining sonar ring scanning data, attitude data of different depths of the inspection well and reference sonar ring scanning data of the inspection well; performing translational motion compensation processing on the sonar ring scanning data of each depth based on the attitude data of each depth and the reference sonar ring scanning data, to obtain first target data of the corresponding depth; extracting well wall points from the first target data of each depth, to obtain a first well wall point set of the corresponding depth; constructing a rotation matrix of the corresponding depth based on the attitude data of each depth; determining a second well wall point set of the corresponding depth in a global coordinate system based on the rotation matrix of each depth and the first well wall point set of the corresponding depth; and generating an underwater three-dimensional grid model of the inspection well based on the second well wall point sets of multiple depths, which can completely and intuitively restore the complex spatial topological form inside the inspection well.
Owner:THREE GORGES ENVIRONMENTAL TECH CO LTD +1

Four-way connector, drainage system, cleaning equipment and cleaning system

The utility model relates to the technical field of electric appliances, in particular to a four-way connector, a drainage system, cleaning equipment and a cleaning system. The four-way connector comprises a main pipe, a first branch pipe and a second branch pipe. The main pipe comprises a first pipe opening, a second pipe opening and a third pipe opening, a separation part is arranged in the main pipe, and the first pipe opening and the third pipe opening are separated by the separation part; the first branch pipe is connected to the main pipe and is communicated with the third pipe orifice; the second branch pipe is connected to the main pipe and communicated with the third pipe opening. According to the technical scheme, the connecting structure of the pipeline system in the cleaning equipment is optimized, and the structural rationality of the cleaning equipment is improved.
Owner:NANJING ROBOROCK INNOVATION TECH CO LTD

A repository-level code translation intelligent agent method and device based on code graph structure

ActiveCN122331909BImprove structural rationalityimprove readability
This invention discloses a repository-level code translation agent method and apparatus based on a code graph structure, relating to the field of multi-agent technology. The method includes: constructing a repository-level code translation agent framework comprising a repository function understanding agent, a code translation agent, and a code inspection and repair agent; inputting the source Python code repository into the repository function understanding agent for functional analysis, establishing a correspondence between source Python code components and target Java language code files; determining the translation order of the target Java language code files based on the correspondence using the code translation agent; translating each target Java language code file sequentially to obtain translation results, constructing a target Java language repository; inputting the target Java language repository into the code inspection and repair agent, performing repairs using pre-configured processing tools, and outputting a complete and runnable target Java language repository. Using this invention can improve the completeness and consistency of repository-level code translation results.
Owner:HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)

Integrated desk and chair

The utility model discloses an integrated study desk and chair, comprising: chair subassembly has movable first base and fixedly set up on the chair body of first base, desk subassembly has movable second base and fixedly set up on the table body of second base, wherein, the edge of one of first base and second base is equipped with lock groove, and the other is equipped with locking mechanism, when first base and second base are close to each other, lock groove and locking mechanism are aligned and locked to limit first base and second base relative separation. The utility model provides an integrated study desk and chair, through setting up lock groove and locking mechanism of alignment locking between movable first base and second base, realize the quick disassembly of study desk and chair, promote structural stability, use flexibility and space adaptability, and it is convenient to carry, place and subsequent maintenance.
Owner:NINGBO TIANTIAN STATIONERY CO LTD

Exhibit touch model rapid printing method, device and equipment and storage medium

The invention relates to the field of data processing, and discloses a rapid printing method and device for an exhibit touch model, equipment and a storage medium. A to-be-printed object is scanned through 3D structured light, and object point cloud information is aligned through a feature matching-based point cloud alignment algorithm; removing redundant details in the complete article model data by using a Gaussian filtering algorithm; based on a Canny edge detection algorithm and in combination with an adaptive threshold adjustment method, geometric feature enhancement is carried out on the filtered article model data, and the intensity value of edge pixels is adjusted according to the importance of the edge and the required sharpening degree; and according to the structural strength requirement, the topological relation of the internal structure of the model is adjusted to generate a supporting structure, and article layer-by-layer printing is carried out based on sharpened article model data and article model structure data. The problems of inaccuracy and incompleteness of scanning data are effectively solved, the geometric accuracy and completeness of the model are improved, and the finally printed article model is closer to a real article.
Owner:JIHUA LAB

Lathe positioner for long shaft machining

ActiveCN222175966UImprove structural rationalityReduce stepsAuxillary equipmentLarge fixed membersDetentScrew thread
The utility model relates to the technical field of lathe parts, in particular to a lathe positioner for machining a long shaft, which comprises a long shaft part, positioning components are symmetrically mounted outside the long shaft part, each positioning component comprises a central ring, three threaded sleeves are mounted on the thin wall of each central ring, and the threaded sleeves are sleeved on the central rings. The three threaded sleeves are installed in the peripheral direction of the center ring at equal angles, and the axis lines of the three threaded sleeves intersect with the center point of the center ring. The positioning assemblies are fixedly installed under the mutual cooperation of the supporting rod, the vertical support and the supporting bottom plate, the extrusion end points of the three clamping assemblies coincide with the midpoint of the center ring, and the midpoint is located on the center line of the long shaft piece, so that the long shaft piece can be supported through the mutual cooperation of the positioning assemblies; and therefore, the possibility that the center of gravity shifts in the process that the long shaft rotates along with the chuck is reduced, the structural rationality of the device is improved, and the turning quality is guaranteed.
Owner:KUNSHAN XIEGAO AUTOMATION TECH CO LTD

A segmentation-guided automatic region-level identification method for rock thin section images

This invention proposes a segmentation-guided automatic region-level recognition method for rock thin section images. The method first performs target segmentation on the rock thin section image, obtaining multiple independent regions and corresponding region masks. Then, each independent region undergoes preprocessing including cropping, background suppression, boundary compensation, and size normalization to construct classification input samples. Next, the preprocessed region images are input into a recognition model to extract region texture, morphological, and semantic features, outputting corresponding category labels. Finally, the recognition results of each independent region are mapped back to the original image, and automatic analysis results are generated through region merging and consistency correction. This method effectively connects segmentation results with region-level recognition, improving the accuracy and automated analysis capabilities for identifying mineral grains, pores, and matrix targets in rock thin section images.
Owner:XI'AN PETROLEUM UNIVERSITY

A monoscopic SAR three-dimensional target reconstruction method

PendingCN122657394AReduce the search dimensionReduce computational complexity
The present application relates to the field of radar image processing and target reconstruction, in particular to a single-view SAR three-dimensional target reconstruction method, comprising: training a three-dimensional generative prior model; constructing a compact latent space reparameterization network based on the model to convert original latent variables into low-dimensional compact latent variables; obtaining a single-view SAR observation image and imaging parameters of a target to be reconstructed and preprocessing; combining the three-dimensional generative prior model, the compact search latent space and a SAR physical forward imaging model to construct a physically consistent likelihood function, and using Markov chain Monte Carlo sampling for posterior inference to obtain a posterior compact latent variable sample set; determining a representative compact latent variable according to the sample set, generating a three-dimensional reconstruction result of the target, calculating three-dimensional structure uncertainty information of the target, and obtaining a confidence distribution and uncertainty evaluation result.
Owner:FUDAN UNIVERSITY