81 results about "Entity model" patented technology

The invention relates to the field of computer graphics, reverse engineering and additive manufacturing, discloses a multi-modal fusion and physical constraint three-dimensional point cloud geometric modeling system and method, and aims at overcoming the defects that traditional three-dimensional reconstruction entity attributes are missing, key features are prone to being lost, semantic understanding does not exist, and process automation is low. The system comprises a point cloud preprocessing module, a semantic segmentation and recognition module, a mixed geometric reconstruction module, a multi-component assembly and physical constraint solution module and an entity model output module. The method comprises the following steps: denoising and sampling an original point cloud, realizing semantic and instance double segmentation through a Point Net + + network, endowing a geometry-function composite label, completing hybrid reconstruction through improved Poisson reconstruction, parameterized B-Rep fitting and standard component library matching, and outputting a multi-format engineering available model after physical constraint verification and automatic correction of a violation model. According to the method, automatic, high-fidelity and high-practicability conversion from the point cloud to the engineering-level entity model is realized, and the method is adaptive to multiple industrial application scenes.

The invention discloses a coal mine robot cluster-oriented virtual entity synchronous mapping method. The method comprises the following steps of: constructing a virtual entity synchronous mapping system consisting of a coal mine robot cluster physical entity, a coal mine robot cluster virtual entity, coal mine robot cluster twin data, cluster service application and information interaction; a coal mine robot cluster is used as a physical entity object, an OPC UA communication protocol is used for data collection, the collected data is processed, a virtual entity is driven in a script mode based on a Unity 3D physical engine, and therefore a virtual-real mapping channel is established; converting various non-standardized data structures of the robot cluster into standardized data structures; data of the heterogeneous robot are collected and transmitted through standardization of various communication protocols, and the data are used for driving the virtual entity model. The method has the advantage of performing synchronous mapping on the virtual entities so as to facilitate intelligent management and control.

The invention discloses an equipment thermal fluid simulation method and device, equipment and a medium, and the method comprises the steps that an open document submitted by a user is analyzed, the open document comprises a plurality of page units, and equipment configuration data and simulation task data are provided through the page units; updating a three-dimensional body mesh model in a simulation framework into an equipment entity model according to the equipment configuration data; calling a solver in a simulation framework according to the simulation task data to determine fluid simulation result data of the equipment entity model; and displaying corresponding simulation effect information on a graphical user interface according to the simulation result data. According to the method and the device, the open document submitted by the user is automatically analyzed, so that the dependence on professionals is reduced, and the simulation efficiency is remarkably improved.

The invention discloses an earth and rockfill dam heaping period monitoring scheme optimization method and an earth and rockfill dam heaping period monitoring scheme optimization system based on deformation inclination control, and belongs to the technical field of earth and rockfill dam construction monitoring. A three-dimensional solid model covering the whole heap building process is constructed, and grids are encrypted for key parts such as a core wall, a transition layer, a dam slope and a dam foundation weak interlayer; dividing independent working conditions by taking a layering and filling sequence as a unit, carrying out step-by-step numerical simulation to obtain a displacement field, respectively calculating dam axial deformation inclination and river-following deformation inclination, and generating a cloud picture; determining a key monitoring area according to a criterion that the deformation inclination is greater than or equal to m%, the previous step variation is greater than or equal to a% and a key structure is forcibly incorporated, and laying settlement monitoring points and inclination measuring holes to form a dynamic monitoring table; and when the actually measured deformation inclination exceeds the simulation value b%, verifying the model, reducing the subsequent threshold value n%, and improving the monitoring frequency.

The invention relates to the technical field of practical training system construction, and discloses an immersive virtual nursing practical training system construction method based on a meta-universe platform, and the method comprises the steps: carrying out the layered construction of a scene, and building an environment layer, an interaction layer and a data layer on the meta-universe platform; generating a dynamic learning guiding system, constructing a knowledge graph case library and a virtual tutor, and realizing adaptive training path planning; virtual-real fusion operation training is carried out, and accurate mapping of a virtual instruction and an entity model is realized by using an AR technology; and performing multi-dimensional skill evaluation, collecting user operation data, and constructing an evaluation model for scoring. Compared with a traditional practical training mode, the operation proficiency of trainees is improved, and the coping capacity of complex situations is improved.

The invention discloses a pipeline geographic entity conversion production method, system, equipment and medium, and the method comprises the steps: S1, designing a pipeline geographic entity model which is used for stipulating a unified format of a converted pipeline geographic entity; s2, the comprehensive pipeline data are expressed as primitives, the comprehensive pipeline primitives comprise pipe point primitives and pipeline primitives, and the pipe point primitives are divided into entity primitives and drawing primitives; primitives of the integrated pipeline data are coded into primitive codes for associating the integrated pipeline primitives with pipeline geographic entities; s3, traversing the pipe point primitives, judging whether the pipe point primitives are entity primitives or not, if yes, generating pipe point entities based on the entity primitives, and if not, not processing in the step and waiting for participating in pipeline entity conversion in the step S4; and S4, traversing the pipeline primitives, and performing pipeline entity conversion. According to the invention, automatic upgrade conversion from the integrated pipeline data to the pipeline geographic entity data is realized.

The application provides a 3D printing method, an entity model and a filling template corresponding to a to-be-printed model are acquired. The filling template comprises m layers of filling bitmaps stacked with each other, and the sizes of the filling bitmaps are all the same. The entity model is sliced to obtain N layers of model slice bitmaps, and the thicknesses of the model slice bitmaps and the thicknesses of the filling bitmaps are all the same. The N layers of model slice bitmaps are filled based on the filling template to obtain a target bitmap corresponding to each layer of model slice bitmap in the N layers of model slice bitmaps, wherein the fth layer of filling bitmap is used for filling the x*m+fth layer of model slice bitmap, x is a positive integer greater than or equal to 0, and f is a positive integer greater than or equal to 0 and less than or equal to m. The target bitmap set is obtained based on the target bitmap corresponding to each layer of model slice bitmap. The to-be-printed model is printed based on the target bitmap set, the data storage amount and the calculation complexity of 3D printing can be reduced, and the printing efficiency of a large-size high-resolution 3D model can be improved.

A method and apparatus for generating a web application, the method comprising: determining whether a business database needs to be enabled based on an application creation request in natural language form; if the business database needs to be enabled, generating a user interface (UI) description file and a table structure description of the target data table to be created using a large model based on the application creation request, wherein the UI description file describes the configuration information of UI elements corresponding to multiple fields in the target data table; converting the table structure description information into a standard entity model, wherein the standard entity model describes at least the field names, field constraints, and corresponding tag names in the backend management page of multiple fields, and the standard entity model and UI description file are used to render the data management view in the backend management page of the target web application; generating a frontend user page of the target web application based on the client SDK of the business database; and creating the target data table in the business database based on the standard entity model.

The application provides a kind of wargame simulation method and device, the method comprises the following steps: obtaining the deployment scheme of the force of both sides of the game;Get the action instruction of the both sides of the game, according to the action instruction, the corresponding force entity model is played, the operation result is fed back, the both sides of the game generate the next action instruction according to the game result;Record the game process and the final game result of the both sides of the game;Wherein, the force entity model is obtained by extracting the attribute of force entity in the deployment scheme of the force, based on the modeling of each functional parameter in the attribute of the force entity to the force entity.The technical scheme of the application realizes the multifunctional simulation of wargame, in the process of modeling the force entity, through the simulation of the functional attribute of the force entity, so that the simulation method and device of the application can adapt to the mainstream reinforcement learning algorithm.

The present application belongs to the field of computer aided design and computer aided manufacturing system, and relates to a CAD model simplification and repair method based on intelligent decision: firstly, a user imports an original CAD entity model through an interactive interface in a CAD system; then, the system detects redundant topological information existing in the CAD entity model, including redundant points, edges and surfaces; then, an optimal cleaning sequence is generated by using a reinforcement learning method for all the detected redundant topological problems; then, two geometric surfaces that need to be merged are merged in the process of removing the redundant topologies in sequence; finally, the merged topologies are updated on the whole model. The method can solve the problems of strong cleaning sequence dependency and large geometric distortion in traditional geometric simplification, and ensure the manifold and topological correctness of the final model after simplification, and is applied to subsequent mesh generation and precision manufacturing.

Disclosed are a three-dimensional modeling system and modeling method based on multimodal fusion. The method includes: separately collecting feedback data of an electroencephalogram sensor, an electromyography sensor, an eye movement sensor, a gesture sensor, and a voice sensor, conducting multimodal fusion on the feedback data, obtaining multimodal-fused model data, matching the model data with a database instruction, obtaining and analyzing an instruction set, obtaining and identifying a relevant modeling parameter, obtaining a modeling method, automatically conducting modeling according to the modeling method, and obtaining a visual entity model. Through the method of the present disclosure, multi-sense man-machine interaction is combined with traditional geometric modeling, and a complicated modeling command input operation does not require manipulation of interactive devices such as a keyboard and a mouse, such that modeling efficiency is improved, waste of manipulation energy of an operator is reduced, and further modeling experience of the operator is improved.

A twisted modeling three-dimensional entity modeling method, device, medium and electronic equipment, the method comprises: acquiring modeling parameters of a twisted surface, the modeling parameters comprising a twist reference surface, a twist axis and a twist angle; sampling the twist axis to obtain a plurality of sampling points of the twist axis in its parameter interval; calculating the normal plane of the twist axis curve at each sampling point to obtain a set of normal planes, and extracting each corresponding parameter curve on the twist reference surface according to the calculated set of normal planes; twisting and deforming fitting each extracted parameter curve according to the twist angle to obtain a plurality of fitted curves; performing twisted surface fitting according to each fitted curve to obtain a twisted surface; generating a regular surface according to the contour line of the twisted surface, and generating a twisted modeling three-dimensional entity model by topological suturing algorithm of the regular surface and the twisted surface.

The invention discloses an entity model automatic generation method and device based on data structure driving, and the method comprises the steps: building the connection with a relational database based on a data source connection parameter configured according to a JDBC standard protocol, and configuring an entity model template library based on a template method mode and a template engine; the method comprises the following steps of: extracting metadata of a target data table from a relational database through a DatabaseMetaData interface of a JDBC (Java database connectivity); converting the metadata into a standardized data model file based on a data type mapping and naming specification conversion mode; and based on the data model file and the entity model template library, performing rendering by adopting a template engine, and generating an entity model corresponding to the target data table. According to the method, the problems of non-uniform code specifications and high maintenance cost caused by manual coding can be solved, the development efficiency of entity model codes is remarkably improved, the maintenance and iteration cost is reduced, and the overall stability is improved.

The application provides a main keel positioning method and a main keel positioning system, which comprises the following steps: establishing a three-dimensional model of a main keel; establishing a three-dimensional scanning point cloud model of a constructed entity building; superimposing the three-dimensional model of the main keel and the three-dimensional scanning point cloud model of the constructed entity building to obtain an entity model; obtaining the coordinates of at least two reference points in the constructed entity building in the entity model; calculating the coordinates of at least two mark points on the main keel associated with the reference points according to the obtained coordinates of the reference points in the constructed entity building and the relationship between the reference points and the mark points; and marking the reference points and the mark points on the constructed entity building. The application can quickly and simply position the main keel.

The invention discloses a standardized project file generation method and apparatus, an electronic device and a storage medium. The method comprises the steps of determining a plurality of design models corresponding to a target application service; according to a preset engineering structure specification, respectively establishing a mapping relation from the design model to the package directory, and obtaining an engineering structure of the target application service; converting each entity model into a corresponding code template file according to a preset coding specification, wherein the code template file is stored in an engineering package corresponding to a package directory corresponding to the entity model; obtaining model data of each design model; mapping all the model data into the code template file according to the mapping relation to obtain a code structure; and organizing the code structure into a corresponding package directory according to an engineering structure defined in the mapping relationship to form a project structure of the target application service. By analyzing the design model and establishing accurate mapping with the package directory, disorder of an engineering structure and a code structure is effectively prevented, and development efficiency and code correctness are greatly improved.

The invention discloses a method for solving complex query containing numerical values in knowledge graph reasoning. The method comprises the following steps: 1) establishing a model of complex logic query containing numerical values; the model comprises a numerical value-entity predictor and an entity filter; wherein the numerical value-entity predictor is used for deriving a numerical value, an entity or a statistic of a given sub-query; the entity filter is used for comparing the numerical value of the sub-query prediction with the entity attribute value obtained by calculation, and filtering out entities meeting constraints on the knowledge graph by taking the numerical value of the sub-query prediction as a constraint value; according to the method, the complex query related to statistics and the query with numerical constraint can be effectively processed, and the complex query related to statistics and the query with numerical constraint can be effectively processed.

The application discloses a real scene modeling method for power transmission engineering three-dimensional design and considering entity attributes, point cloud data of different sources and different accuracies is registered and unified into a same coordinate system by using an iterative closest point algorithm; point cloud classification is performed on the point cloud data to obtain category point clouds including ground point clouds, building point clouds, vegetation point clouds, power transmission line point clouds, power transmission tower point clouds and unclassified point clouds; a digital elevation model is constructed by using the ground point clouds; monomer segmentation is performed on the category point clouds other than the ground point clouds to obtain a plurality of independent monomer clusters; entity attribute information of the monomer clusters is extracted; each monomer cluster is automatically reconstructed based on the category point clouds to which the monomer cluster belongs, and an entity model is obtained; and the entity model is associated with the entity attribute information of the corresponding monomer cluster. The method can make up for the current shortcomings of real scene modeling, enrich the achievements of the real scene model and meet the actual application requirements.

The application provides a Hamiltonian simulation method and a Hamiltonian simulation device, which can be applied to the technical field of quantum computing. The method comprises the following steps: modeling a condensed matter physical entity to obtain a physical entity model, and extracting a Pauli decomposition form of a Hamiltonian from the physical entity model; processing a plurality of initial Pauli pairs sampled from a baseline distribution of the Pauli decomposition form by using a random linear combination unitary matrix algorithm to obtain a score result and a distribution center corresponding to each initial Pauli pair; dividing the plurality of initial Pauli pairs based on the size of the plurality of score results relative to the distribution center to obtain a Pauli matrix set; processing a plurality of target Pauli pairs obtained by sampling the baseline distribution and the Pauli matrix set by using the random linear combination unitary matrix algorithm to obtain a score result of each target Pauli pair; and generating an estimated value of the Hamiltonian according to the score results of the plurality of target Pauli pairs.

Systems and methods are disclosed for improving conversation analysis using lightweight, custom models trained with limited human-labeled data. A conversation object comprising natural language data is processed using an analysis model to generate attribute values. Human feedback is received to correct or confirm the attribute values. A foundation model is then prompted to generate synthetic training examples based on the conversation object and evaluator input. A custom analysis model is trained using both the human-labeled and synthetic data and is deployed when performance exceeds a predefined threshold. The system may support segment-based corrections, structured refinement data storage, and per-entity model deployment. These techniques enable high-accuracy attribute prediction in domains where training data is sparse and generic models underperform. The disclosed approach reduces annotation costs, enhances model precision, and supports scalable, domain-specific customization of conversation intelligence pipelines.

The invention belongs to the technical field of underwater vehicle motion analysis, and particularly relates to a vehicle motion simulation method based on a real marine environment. Comprising the following steps: establishing a real ocean database based on gridding expression, establishing spatio-temporal expression of a real ocean environment spherical surface based on one-dimensional coding, defining a space entity based on an entity model, entity attributes and space entities formed by the space entity and spatio-temporal grids, and realizing attribute description based on entity positions, entity sizes and entity motion characteristics. Completing distribution based on service paths of the aircraft and typical path aggregation matching, establishing a space motion mathematical model and a dynamics mathematical model based on structural characteristics of the aircraft, and realizing model constraint correction and simulation based on typical combination in combination with aggregation constraint. The aircraft motion simulation method based on the real marine environment is used for establishing and perfecting the simulation environment and motion path optimization matching of aircraft motion simulation under the real marine environment condition.

The invention discloses a design method for a full-scale section test piece of an underground space large-span prestressed slab ribbed beam structure, and belongs to the technical field of full-scale section test pieces. The design method comprises the following steps: step 1, establishing an overall solid model; 2, parameterizing and analyzing the stress envelope condition of the whole structure; 3, processing and extracting side wall inflection points after a finite element calculation result; 4, preliminarily establishing a finite element analysis model of the test piece; 5, parameterized analysis of the test piece; 6, comparing and selecting test schemes; 7, extracting a load displacement curve of the test piece; 8, verifying the correctness of a finite element calculation result; step 9, determining a test scheme; and 10, designing test piece measuring point arrangement. The invention discloses the full-scale section test piece design method which improves the feasibility and accuracy of the test piece, improves the design convenience, the intelligent level and the test accuracy, and reduces the cost at the same time.

The application discloses a special-shaped pipeline template manufacturing and installation method based on a BIM model, and comprises the following steps: establishing a three-dimensional entity model of a special-shaped pipeline, and generating a three-dimensional template model of the special-shaped pipeline; virtually cutting the three-dimensional template model to form a plurality of three-dimensional component templates; expanding the plurality of three-dimensional component templates from a three-dimensional state into a two-dimensional state of a template drawing in BIM software; printing the two-dimensional state of the template drawing on a spray drawing cloth to obtain actual component templates of the special-shaped pipeline; attaching the actual component templates to corresponding outer surfaces of branch cylindrical pipelines, and cutting the branch cylindrical pipelines along the actual component templates to form each branch pipeline of the special-shaped pipeline; and splicing and installing to obtain an actual special-shaped pipeline. The method guarantees the accuracy of template splicing to the maximum extent, avoids waste of materials caused by improper operation of construction personnel and cutting errors, and greatly improves the working efficiency of template processing.

The application discloses a visual real-time data monitoring method and device based on MR technology, and belongs to the technical field of MR data measurement, and comprises the following steps: after a central controller receives a CPR training request signal, the central controller synchronously maps a dummy entity model to a visual interface by using MR technology to display a real-time training state, and transmits a preliminary verification signal to each sensing terminal connected to the dummy entity model; CPR verification data corresponding to each sensing terminal connected to the dummy entity model is collected within a preset verification period, and each sensing terminal verification result is obtained by analysis; and corresponding terminal verification processing is performed, whereby CPR training real-time sensing data is collected and uploaded to the central controller; CPR specification indexes are obtained by analysis, and it is judged whether a voice prompt is sent or not. The application solves the problem of inaccurate training effect determination caused by inaccurate sensing device detection in the prior art.

The application discloses a label point cloud generation method, system, device and medium, wherein the method acquires an entity model in a power grid system; the entity model is subjected to triangular face structuralization decomposition to obtain a plurality of intermediate component sets, each intermediate component set corresponds to an entity component in the entity model, the intermediate component set comprises a plurality of triangular faces, and the triangular faces record component semantic labels of the corresponding entity components; all the intermediate component sets are subjected to hierarchical interpolation to obtain a plurality of target component sets, each target component set comprises a plurality of triangular point cloud faces; and according to the component semantic labels, the target component sets are subjected to semantic labeling mapping to obtain label point cloud data of the entity model. The generation method can effectively improve the quality and efficiency of generated label point cloud. The application relates to the technical field of three-dimensional point cloud data generation.

The invention discloses a nonlinear unknown parameter estimation method for digital twin modeling of a hydraulic system, and relates to the technical field of digital twin. The method comprises the following steps: constructing a target hydraulic system entity model, and obtaining related basic data through an experiment; constructing a digital twinborn model based on the hydraulic system entity model; the parameter variables of the digital twin model comprise determined parameters and unknown parameters; wherein for unknown parameters, a design variable matrix and a response objective function are determined according to related basic data, a response surface agent model is established by applying multiple regression analysis, then a Pareto front solution set of an established multi-objective optimization mathematical model is solved by utilizing a multi-objective optimization algorithm, and finally, a global optimal parameter combination is screened by combining a comprehensive evaluation method. According to the method, efficient and high-precision estimation of unknown parameters in a complex model is realized by constructing a mapping relation model between the unknown parameters and simulation-experiment errors and combining a multi-objective optimization algorithm and a comprehensive evaluation method.

The application discloses a kind of based on reparameterization's cutting free surface equal parameter processing path generation method.The application is first to the entity model of import pre-processing, mainly to the B-rep entity model of complex cutting surface composition is decut, so that it is in the new B-rep entity model of multiple complete tensor product surface composition by surface reparameterization conversion within the given accuracy after reconstruction face and face adjacent relationship, the whole model is segmented into multiple surface zone;Finally, each surface on the surface zone is generated equal parameter line processing track one by one.The application can be converted into the model of watertight complete surface composition within the accuracy requirement set by user by cutting surface composition model, and generates the numerical control processing track of model, avoids the gap between cutting surface model to make processing track cannot be continuously generated and the difficult problem of low processing efficiency, realizes efficient, robust processing path generation.

The application discloses a kind of entity model verification methods for tail water maintenance platform, to solve the problem of low precision, insufficient condition reproduction, poor implementability of existing verification method, the method comprises the following steps: S1 builds 1:1 isometric modular simulation verification system, each module is fast detached and independently configured acquisition and adjustment unit;S2 carries out benchmark performance check by module, to ensure that each module parameter is up to standard;S3 reproduces the actual operation condition of hydropower station, covers hydrology, load, attitude and humid corrosion environment;S4 carries out multi-stage whole system linkage verification, collects core performance data and identifies fault;S5 carries out real-world design optimization and secondary verification for the problem;S6 organizes verification data to form report, solidifies verification standard as entity platform construction basis, the method improves verification precision and efficiency, reduces research and development construction risk, applicable to hydropower station multifunctional operation platform research and development verification, with good universality.

The invention relates to the technical field of steel structure modeling, and provides a storage tank maintenance operation platform system parameterization modeling method and system.The method comprises the steps that storage tank related parameters are set in a modeling platform, and a tank body three-dimensional entity model is created with a preset given point as the center; creating a three-dimensional model of the operation platform on the basis of the three-dimensional solid model of the tank body according to relevant parameters such as the elevation, the cantilever angle and the platform width of the operation platform; and according to parameters such as the inner side radius, the step height, the stair width and the total height of the spiral stair, on the basis of the operation platforms and the tank body model, creating a spiral stair model between the adjacent operation platforms. Through a parameter driving mode, Tekla real-time linkage modeling of the tank body, the platform and the spiral stair is realized, and the modeling efficiency and precision are remarkably improved.

The invention discloses an embedded part deviation prevention method based on dynamic twinning and real-time deviation correction, and the method comprises the steps: building a BIM entity model with a GUID for each embedded part, and generating a two-dimensional code digital identity card through collision detection; an automatic leveling total station is used for millimeter-level lofting, NB-IoT dip angle-displacement sensors are arranged in the reinforcing steel bar-concrete stage, and coordinates are uploaded in real time; the cloud pushes yellow / red early warning and three-dimensional deviation correction vectors according to double criteria of a threshold value and a trend, a screw jack or a nut fine adjustment mechanism is used for real-time deviation correction, and pouring is carried out after repeated measurement is qualified; writing a completion coordinate into the IFC4 digital twinborn body for delivery; all deviation data are input into a database, an association rule mining algorithm is operated to generate a Top3 high-frequency mode CSV, and technical disclosure attributes of a next project are written in batches through a BIM plug-in. On-site verification shows that the lofting error is smaller than or equal to + / -1mm, the installation deviation is smaller than or equal to + / -1.8 mm, the rework rate approaches zero, and data in the whole process can be traced. The method is suitable for concrete structures such as housing buildings, bridges and subways.

This invention discloses a twin birth simulation teaching system based on the linkage of mixed reality and physical models, belonging to the field of medical teaching simulation technology. The system includes a multimodal sensor fusion acquisition module, a mixed reality spatial calibration and virtual-real overlay module, and a twin birth physiological dynamics simulation module. By deploying a thin-film pressure sensor array, an inertial measurement unit, and a capacitive proximity switch, the system collects operational data in real time. It uses a weighted iterative nearest point algorithm to achieve sub-millimeter-level spatial alignment between virtual and real data. The system drives the physiological simulation of twin birth based on a finite element contact mechanics model. It combines an expert rule base and a machine learning model to generate a quantitative evaluation report, realizing a closed-loop teaching of twin birth based on visual and tactile data.