169 results about "Entity model" patented technology

The invention relates to the technical field of chemical enterprise production management, in particular to a chemical enterprise safety production informatization management system which comprises a sensing network layer architecture, a digital twin management platform, a risk management and control and decision center, a process closed-loop management center and an emergency cooperative processing platform. According to the chemical enterprise safety production informatization management system and method, through construction of a chemical knowledge graph, on the basis of a dynamic risk matrix and an AI prediction model library, equipment remaining service life prediction, process tiny anomaly capture and accident consequence simulation processing are realized; meanwhile, a root cause analysis module is used for associating low-level alarm and traversing a knowledge graph to automatically infer a fault root, physical equipment and a virtual model are bound through an entity-model mapping engine, the model state is dynamically updated in combination with a real-time rendering technology, and technological parameter optimization, accident deduction and scheme verification can be completed in an analogue simulation engine; and the management intuition and the decision-making scientificity are effectively improved.

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 relates to a power load spatio-temporal dynamic knowledge graph construction and load prediction method, which comprises the following steps of: constructing a text and digital sequence hybrid vector coding module, providing a hierarchical entity relationship joint extraction framework oriented to power system load data, constructing a Multi-Encoder-Bi-GRU-CRF power load entity recognition model, and constructing a power load entity model. Constructing a power load spatio-temporal dynamic knowledge graph in combination with a predefined relation rule base; meanwhile, time-space sub-graphs are divided, a space-time coupling self-adaptive adjacency matrix is constructed, and the space-time dependency relationship between nodes is quantified; and finally, combining the knowledge graph node embedded vector and the adjacency relation embedded vector, and jointly extracting the spatial feature and the time feature of the power load by adopting a space-time diagram convolutional neural network. Therefore, the load prediction algorithm provided by the invention not only can give full play to the advantages of multi-modal semantic integration and space-time modeling capability of the knowledge graph, but also can improve the load prediction precision, assist in realizing refined energy management of the power system and assist in making an optimal scheduling strategy, and has a good engineering application prospect.

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 provides a method and equipment for creating a three-dimensional welding seam model, and relates to the technical field of rail transit equipment.The method comprises the steps that according to geometric feature data of all first-level parts in an assembly model, the positions of welding seams between the first-level parts are recognized; creating a parameterized three-dimensional welding seam entity model at each welding seam position according to the parameterized correlation formula and the welding seam feature data corresponding to the welding seam position; the parameterized correlation formula is a correlation formula between a weld size parameter and a corresponding parent part size parameter; according to the three-dimensional welding seam entity model and the welding seam feature data, generating a corresponding welding seam marking symbol in the target welding seam view; and creating and inserting a welding seam part corresponding to the three-dimensional welding seam solid model in the assembly structure tree of the assembly body model. According to the method, automatic collaborative updating during design change and unified management of welding design data are achieved through a parameterization association mechanism, and the quality and efficiency of welding seam design are effectively improved.

The invention relates to the technical field of deduction engines, in particular to a distributed joint combat deduction engine architecture based on multi-agent reinforcement learning, which comprises a data processing layer capable of acquiring target area environment data, entity historical state data and trust data, target area environment data and entity historical state data are processed through a distributed computing framework, and original trust vectors are generated through trust data; the simulation engine layer can perform environment modeling and entity modeling through an entity modeling engine and an environment simulation engine; carrying out credibility dynamic modeling based on the historical behaviors of the intelligent agent; the joint command layer can coordinate and dispatch a target environment entity and environment resources through a coordination engine according to a preset command scheme, and performs cross-domain trust conduction; and the analysis and evaluation layer can deduce and restore in real time, predict the situation of the target area and evaluate the robustness of the command scheme.

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 a generative model and digital twinborn fusion aerospace equipment structure reliability test method, which comprises the following steps of: firstly, establishing a physical entity model of aerospace equipment, installing a sensor at a key position of the physical entity model, and acquiring stress, strain and vibration data of the equipment in real time; secondly, establishing a digital twinborn model corresponding to a physical entity, and determining a load-response relationship of equipment; processing the actually acquired data to form a standardized load-response data set; establishing and training a probability mapping relation between load and response by utilizing a diffusion generation model, and realizing the generation of equipment response data; then defining a limit state function of reliability analysis of the equipment structure, and carrying out reliability simulation evaluation to obtain a failure probability and a reliability index of the equipment structure; and finally, acquiring equipment operation response data in real time, and dynamically updating parameters of the diffusion generation model and the digital twin model. According to the invention, the accuracy and efficiency of aerospace equipment structure reliability testing are effectively improved.

The invention discloses a point cloud digital service system and method based on digital twinning, and belongs to the field of digital twinning, and the system comprises an entity model construction module, a fusion updating module, a semantic segmentation labeling module, a digital interface construction module and a feedback optimization module. By constructing the user interaction behavior portrait and the service calling feature vector, accurate modeling of different user use preferences and model operation modes is realized, a point cloud processing algorithm can be differentially optimized according to individual requirements, and the processing precision and the user experience are remarkably improved. A federated learning mechanism is introduced, each edge device completes training and parameter updating of a point cloud processing model locally, only the model weight difference is uploaded, and original user data is not involved, so that cross-terminal joint optimization is realized while privacy security is guaranteed.

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 application discloses a kind of underground mine three-dimensional entity model establishing method, device and medium.The method includes: S1, AutoCAD software imports two-dimensional drawing, and drawing is divided into different layers according to mining middle section;S2, clean up invalid graphics;S3, conversion line type, clean up layer;S4, process middle section broken line, closed loop;S5, target middle section DXF file is imported into GEOVIA Surpac software, generates str file;S6, adjust point elevation and line segment slope, generate floor str file;S7, adjust floor str file, generate top surface str file;S8, create floor and roof DTM model;S9, close bottom surface and top surface DTM model, form target middle section three-dimensional entity model;S10, combination forms overall three-dimensional entity model.The application makes full use of AutoCAD software to quickly process two-dimensional drawing on the advantages of messy point, redundant line and control layer, combined with GEOVIA Surpac software three-dimensional space modeling technology, improve the efficiency of two-dimensional plane figure to establish complex three-dimensional entity model.

The application is a mapping relationship model construction method suitable for aero-engine production line simulation, comprising: analyzing the composition and structure of physical entities in the production line to complete geometric modeling of entity models, completing information modeling of entity models according to data information of the production line, and completing behavior modeling of entity models through kinematic analysis of the physical entities; classifying the equipment of the production line according to purposes, and building an aero-engine mechanical machining production line model library; building a production line simulation model according to a two-dimensional CAD layout diagram of an actual production line; decomposing the operation actions of the equipment and personnel at the workstation level according to production tasks, setting mechanical movement processes of moving objects in the production line simulation model; defining the production logic control of the production line, classifying the production logic, and compiling corresponding logic control simulation programs; simulating the production process of the production line, and evaluating the performance of the production line according to production line operation simulation data.

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.

A method implemented by a data processing system for automatically detecting a change in entities of a first entity class, and, in response to the detecting, generating a notification specifying that a change relating to a second entity class has been detected, including: storing an entity model for entity classes; determining that a notification is to be generated upon detection of a change to entities of a first entity class of the entity model, the notification specifying that the detected change relates to a second entity class; detecting a change to an entity of the first entity class; responsive to the change, traversing edges of the entity model to identify a node representing an entity of the second entity class related to another node representing the entity of the first entity class; generating the notification for the entity of the second entity class; and storing the notification for transmission.

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.

The present application relates to a typical paradigm behavior model conversion method and device for CGF. The method includes: receiving a conversion instruction input by a user; when receiving a first conversion instruction, using a pre-set first conversion algorithm to map each task flow of a finite state machine and the states and transition relationships in each task flow into a subtree of a behavior tree and a hierarchical node structure of each subtree, and outputting a behavior tree description file; when receiving a second conversion instruction, using a pre-set second conversion algorithm to decompose the tree structure of the behavior tree into a state transition network of a finite state machine, and outputting a finite state machine description file; based on the description file output after receiving the conversion instruction, generating a corresponding code framework and integrating it into the CGF simulation platform to output a deployable CGF entity model file. The use of this method can improve the efficiency, reusability and application flexibility of CGF modeling.

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 application belongs to the technical field of grinding numerical control processing, and particularly discloses a grinding wheel sweep volume generation method for composite grinding center processing collision detection, an electronic device and a storage medium, which comprises the following steps: S1, constructing an entity model of a grinding wheel; the entity model comprises a parallel grinding wheel and an end face grinding wheel; S2, acquiring a trajectory feeding direction and a trajectory translation distance; S3, acquiring a projection closed contour line of the surface of the entity model; S4, acquiring a sweep projection characteristic line; S5, reversely projecting the sweep projection characteristic line to the entity model to acquire a sweep characteristic line; S6, keeping the position of the entity model unchanged to obtain model A; another entity model is translated by the trajectory translation distance along the grinding wheel feeding direction to obtain model B; S7, the sweep characteristic line is swept by the trajectory translation distance and along the trajectory feeding direction to obtain model C, and the grinding wheel sweep volume is obtained according to model A, model C and model B.

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.

The invention relates to the technical field of data processing, in particular to a digital entity model integration interaction method and system considering data interconnection fusion. The method comprises the steps that road features are collected, and semantic key vectors are formed in combination with sensor types and historical features; obtaining a query vector, obtaining a comprehensive weight based on the similarity of the query vector and the semantic key vector and the data quality factor, and determining a fusion observation value in combination with the value vector; respectively constructing a fusion observation matrix and a comprehensive weight matrix based on the fusion observation value and the comprehensive weight, and obtaining an observation fidelity item based on the difference between the hidden state matrix and the fusion observation matrix in combination with the comprehensive weight matrix; constructing a Laplacian matrix, and combining the Laplacian matrix as a weight with the hidden state matrix to obtain a topological smoothing item; determining a target function based on the two items to obtain a hidden state matrix of topology correction and the trust degree of the entity; and updating the model based on the hidden state matrix and the credibility of topology correction. The credibility of the digital entity model is improved.

The invention provides a method, system and device for automatically updating an interface control based on data source differences and a medium, and belongs to the technical field of low-code form development. The method comprises the steps that an attribute mapping relation between an entity model and a control model is established, and mapping relation metadata is generated; extracting an attribute change set of the entity model, identifying a changed field by comparing attribute differences between a reference version and a current version of the entity model, and generating a structured change set object; based on the mapping relation metadata and the change set object, analyzing the influence degree of the entity attribute change on the interface control, calculating the influence score of the influenced interface control through an influence factor of a preset dimension, determining a control updating strategy according to the influence score, and executing a control synchronous updating operation. According to the invention, entity change is synchronized automatically, and manual adjustment is reduced; the influence range is accurately identified, the strategy is intelligently decided and updated, the development efficiency and the system stability are improved, and the user experience is optimized.

The application discloses a preparation method of a marine gradient copper alloy heat exchange pipe, which comprises the following steps: preparing material 1; preparing material 2; carrying out entity modeling on the marine gradient copper alloy heat exchange pipe, and layering the model characteristics; preparing the inner pipe and the outer pipe by using an additive manufacturing system; and finally, processing the marine gradient copper alloy heat exchange pipe by using a wire cutting equipment and a numerical control milling machine. The application provides a gradient copper alloy pipe which is strong outside and tough inside, and the wear resistance of the pipe is improved under the premise that the antibacterial property of the pipe is not greatly reduced.

The invention discloses a carrier rocket load shedding control algorithm verification method and device, equipment, a medium and a product, and relates to the technical field of spacecraft control, and the method comprises the steps: building a carrier rocket entity model located in a wind field simulation system, and simulating an actual wind disturbance environment of a rising section; constructing a dynamic model based on the entity model; obtaining an initial position coordinate, and starting a wind field simulation system according to a preset wind speed parameter; using a load shedding control algorithm to control the position and attitude of the model so as to obtain motion response data; wind speed parameters are changed and iterated until a threshold value is met, and multiple groups of data are obtained; and finally, calculating verification results such as a wind speed reduction rate and a positioning error value through a statistical method. Through a ground low-cost test scheme, an evaluable test environment is established, the problem that the real environment of a load shedding algorithm is difficult to verify is solved, the algorithm performance can be comprehensively and accurately verified, and the flight safety and reliability of a carrier rocket are 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 application discloses a network space simulation construction and analysis display method, which comprises the following steps: editing and setting multiple types of network entity models and network relationship models, storing the network entity models and the network relationship models into a database, outputting the network entity models and the network relationship models from the database, constructing corresponding network simulation entities and a simulation target network, and performing hierarchical display on the simulation target network and the network simulation entities. The method can effectively realize simulation construction of the network space, can display the network architecture as a whole and display network composition details, and is favorable for intuitive network analysis and feature presentation.

The invention discloses a method for constructing a parameterized entity model of a mine roadway, which is applied to the technical field of intelligent construction and three-dimensional modeling of mine engineering. Comprising the following steps: acquiring modeling data for mine roadway entity modeling; configuring automatic modeling parameters of the modeling data; preprocessing the modeling data, wherein the preprocessing comprises coordinate transformation and roadway splitting; and performing automatic construction of roadway entity modeling based on the preprocessed modeling data. According to the method, the problems of difficulty in multi-source data fusion, adjustment of visual attributes, long model updating period, high cost and the like of traditional roadway modeling are solved, the method can be applied to the technical field of mine engineering digital design and three-dimensional modeling, and a remarkable effect is achieved in intelligent mine construction.

The invention provides a mechanical equivalent finite element modeling method and device for a complex large-size opening structure, equipment and a computer readable storage medium, and relates to the technical field of aerospace structure mechanical analysis. According to the method, a reference model of the single-nail single-lap structure is constructed based on a boundary parameter, a first structure parameter corresponding to an opening structure and a second structure parameter corresponding to a connecting structure; the bolts in the reference model are simplified into a continuous I shape and are integrally assembled in the screw holes; constructing a connecting beam based on the second structure parameter, replacing a screw rod in the bolt with the connecting beam, replacing a contact relation between a nut in the bolt and the two connecting plates through a constraint effect, and constructing an equivalent model; performing parameter calibration on the equivalent model by comparing a first simulation result corresponding to the equivalent model with a second simulation result corresponding to a solid model of the single-nail single-lap structure to obtain a target model; therefore, the high authenticity of the mechanical response can be ensured, and the calculation efficiency can be improved.