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135 results about "Intelligent modeling" patented technology

Intelligent modeling, transformation and manipulation system

The present invention relates to a method of intelligent 2D and 3D object and scene modeling, transformation and manipulation and more particularly this invention relates to the field of computer modeling, virtual reality, animation and 3D Web streaming. The method uses attributed hypergraph representations (AHR) for modeling, transforming and manipulating objects. From one or more 2D views of a 3D object or scene, range information is first computed and then a triangular mesh model is constructed. The data structure is designed to handle the transformations on the representation corresponding to movements and deformations of the object. In an attributed hypergraph, the attributes associated with the hyperedges and the vertices facilitates modeling of various shapes with geometrical, physical or behavior features. As a hierarchical and generic representation, AHR enables pattern matching, recognition, synthesis and manipulation to be carried out at different resolution levels on different subsets depending on the context. Symbolic computation on knowledge represented in the format of attributed hypergraphs becomes straightforward. Given the features of a 3D object or scene, the procedure of constructing the AHR corresponds to the concept of functor in category theory, which maps one category to another one. The transformations of AHR are in the form of a set of operations defined on attributed hypergraphs, which stand for the motions and deformations of the object. This representation is applied to various modeling and manipulation tasks on 3D objects. The process of motion analysis of a 3D object is the task of extracting a sequence of AH operators from the AHR of the object. A 3D scene can be modeled by AHR and then altered / augmented with other 3D models, by which an augmented reality can be built. Given the AHR's of two different 3D shapes, 3D morphing may be accomplished by matching the two AHR's and then mapping the difference to a sequence of AH operators. Model based animation of an object can be accomplished by applying a set of AH operators to its AHR. The AHR method forms a data compression system for efficient web streaming over the Internet.
Owner:PATTERN DISCOVERY SOFTWARE SYST

Urban inland inundation intelligent modeling and analysis method based on GIS and SWMM

ActiveCN110298076AHigh degree of construction automationThe analysis results are accurate and highClimate change adaptationDesign optimisation/simulationRisk levelCoupling
The invention relates to an urban inland inundation intelligent modeling and analysis method based on a GIS and an SWMM. The method comprises the following steps: constructing a simulation system based on the GIS and the SWMM; carrying out automatic preprocessing on the model data and automatically identifying topology errors; calculating a hydrological-hydrodynamic coupling model based on the SWMM by combining rainfall, calculating the amount of rainwater converged into a drainage pipe network system, simulating to obtain actual condition information in the drainage pipe network, and obtaining pipe point overflow data; performing surface water inundation analysis according to the pipe point overflow data, simulating the surface water to obtain the depth of the surface water, and distributing the surface water flow based on a window method; performing early warning analysis on waterlogging of surface water, comprehensively considering prediction of the surface water, automatically dividing waterlogging risk levels of different areas according to a calculation result of a hydrological-hydrodynamic coupling model and a result of surface water inundation analysis, and providing an early warning scheme for drainage waterlogging prevention emergency. The method has the advantages of being low in construction cost, high in model construction automation degree and accurate in analysisresult.
Owner:GUANGZHOU AOGE INTELLIGENT TECH CO LTD

Blast furnace liquid iron quality online forecasting system and method based on multivariable online sequential extreme learning machine

ActiveCN104651559ARealize multivariate dynamic online forecastingEasy to controlBlast furnace componentsBlast furnace detailsTime lagData acquisition
The invention provides a blast furnace liquid iron quality online forecasting system and method based on a multivariable online sequential extreme learning machine. The forecasting system is composed of a conventional measurement system, a data acquisition unit, M-OS-ELM online forecasting software and a computer system for running the software. The forecasting method comprises the following steps of (1) auxiliary variable selection and model input variable determination; and (2) M-SVR soft measurement model training and utilization. According to the forecasting system and the forecasting method, a multivariable liquid iron quality forecasting model having output self-feedback and considering the timing sequence and time lag relation of input and output is established by use of the online process data provided by the conventional detection system and based on the M-OS-ELM intelligent modeling technology, and the multivariable online dynamic determination of four major liquid iron quality indexes, namely Si content, P content, S content and liquid iron temperature, is realized simultaneously; in short, the model has the characteristics of good practicability, more accurate measurement effects and stronger generalization ability.
Owner:NORTHEASTERN UNIV

Intelligent modeling method in industrial polyester production process

InactiveCN101508768AApproximate to the real reaction processPolyesterIntelligent modeling
The invention relates to an intelligent modeling method during the industrial polyester production process. Firstly, a mechanism model of the polyester production process based on reaction kinetics is established according to the mechanism of polyester reaction process; and then, parameters in the technical mechanism model are optimized by a multiple-target distribution estimation algorithm, so as to describe the actual operation characteristic of the industrial polyester production process exactly. At the same time, considering the influence on the reaction during the pre-polycondensation stage caused by catalyst, influence factor of the catalyst is added in reaction speed constant of the mechanism model, and a model between the catalyst and the reaction speed constant is established by a least square method; in a final polycondensation reactor, the mass transfer rate is reduced, and the influence on the process speed is increased, so that an artificial neural network is used for establishing an empirical model while the influence of mass transfer is considered, and the process speed is expressed in a form of resistance equation while combining with the reaction speed to ensure that the model is exacter. The modeling method can be applied to the modeling during three-reaction and five-reaction technical process during the industrial polyester production process at present.
Owner:EAST CHINA UNIV OF SCI & TECH

Soft measuring system and method for quality indexes of multielement molten iron of blast furnace

A soft measurement system and method for the quality index of blast furnace multi-element molten iron, the system includes: a data acquisition unit, a data preprocessing unit, and a soft measurement unit; Filter, remove noise and normalize the parameters required by the dynamic soft measurement of the quality index; use the dynamic soft measurement model of the quality index of the blast furnace multicomponent molten iron to perform dynamic soft measurement of the quality index of the blast furnace multicomponent The parameters required for the dynamic soft measurement of the molten iron quality index are used as input, and the multivariate molten iron quality index of the blast furnace is output as the output, and the output self-feedback is adopted to dynamically and online recursively predict the multivariate molten iron quality index of the blast furnace. The invention considers the hysteresis characteristics of the blast furnace smelting process and the time series relationship between input and output variables, and utilizes the recursive subspace intelligent modeling technology to realize the dynamic online soft measurement of the multivariate molten iron quality indicators in the blast furnace smelting process.
Owner:NORTHEASTERN UNIV

Spare power automatic switching simulation method of power grid

The invention provides a spare power automatic switching simulation method of a power grid. The method comprises the following steps of: searching and identifying a substation topology structure according to a network topology structure and a real-time operation state of a substation, and generating equipment interval information required by a spare power automatic switching simulation; generating condition parameters required by the spare power automatic switching simulation according to the network topology structure and preset rules, wherein the parameters comprises a charge condition, a discharge condition, an action condition, a locking condition and an action sequence; and carrying out the spare power automatic switching simulation according to the equipment interval information and the condition parameters, so as to obtain the simulation result. With the adoption of the spare power automatic switching simulation method, the intelligent modeling and the automatic generation of a spare power automatic switching model are realized according to a real-time state of a power grid and different topology structures of grid frames in the substation, the maintenance working quantity of a simulation system is reduced, the construction and the use of a power grid simulation training system are facilitated, and the practical application level is further improved.
Owner:SHENZHEN POWER SUPPLY BUREAU +1

Intelligent modeling method and device for digital twin system in complex industrial process, equipment and storage medium

The invention provides an intelligent modeling method and device for a digital twinning system in a complex industrial process, equipment and a storage medium. The intelligent modeling method for thedigital twin system in the complex industrial process comprises the following steps: establishing a mechanism model of the complex industrial process, wherein the mechanism model comprises an identifiable model and an unmodeled dynamic model; estimating parameters of the identifiable model to obtain an identification model; adopting an identification model error and the unmodeled dynamics to forman unknown nonlinear dynamic system; establishing an intelligent model of the unknown nonlinear dynamic system; establishing an intelligent model of the complex industrial process digital twin systemby adopting the identification model and the intelligent model of the unknown nonlinear dynamic system, wherein the identification model error is a model output error caused when parameters in the identifiable model are replaced by identification values of the parameters. Aiming at the problem that the precision of a digital twinning system in a complex industrial process is difficult to guarantee, a system identification method based on a mechanism model is combined with a deep learning method based on big data, and an intelligent model of the digital twinning system in the complex industrialprocess is established by adopting an end-to-side cloud cooperation mode. The modeling problem of a digital twin system in a complex industrial process is solved, and the modeling precision is improved.
Owner:NORTHEASTERN UNIV

Shock tunnel force measurement signal frequency domain analysis method based on deep learning

The invention discloses a shock tunnel force measurement signal frequency domain analysis method based on deep learning. The method comprises the steps of: building a shock tunnel aerodynamic force measurement system, and collecting a plurality of balance sample signals in a time domain based on an SVDC technology; decomposing the balance sample signal by adopting wavelet transform to obtain sub-signals, and performing time-frequency conversion on the sub-signals to obtain effective characteristic signals; performing fast Fourier transform on the effective feature signals in the time domain to obtain frequency domain signals converted to a spectrogram, and performing dimensionless processing on the frequency domain signals; training a convolutional neural network model, and performing intelligent modeling on the frequency domain signals by using the convolutional neural network model to obtain effective output signals after convolution circulation; and performing dimensionalization processing and inverse fast Fourier transform on the effective output signals to obtain filtered aerodynamic force signals in a time domain. Inertial vibration signals are filtered, real aerodynamic force signals are obtained, and reliability and precision indexes of pulse wind tunnel force measurement results are improved.
Owner:INST OF MECHANICS - CHINESE ACAD OF SCI

Underground reinforced concrete structure carbonization life intelligent modeling method based on big data

The invention discloses an underground reinforced concrete structure carbonization life intelligent modeling method based on big data. The method comprises the steps: selecting main factors influencing the carbonization life of an underground reinforced concrete structure according to the carbonization mechanism of the reinforced concrete structure and the consideration of an actual engineering situation; according to different factors influencing the carbonization life of the underground reinforced concrete structure and a theoretical model, establishing three-factor and seven-factor sample data; compiling an intelligent genetic algorithm program based on MATLAB, obtaining a corresponding carbonization life model through training according to different sample data, comparing and verifyingcalculation values of a three-factor carbonization life model and a seven-factor carbonization life model with an actual value of the data, and proving the robustness of the intelligent genetic algorithm program for establishing the models and the reasonability of the modeling method ; and finally, collecting actual engineering data in a carbonization environment, establishing a structural carbonization life model considering multiple factors of engineering by utilizing an intelligent algorithm (GP) program, and verifying the engineering practicability of the model by utilizing the actual engineering data.
Owner:HOHAI UNIV

Convenient-to-move bonsai modeling device

InactiveCN109006009ARealize smart shapeEasy to moveHorticulture methodsElectricityMain branch
The invention relates to a convenient-to-move bonsai modeling device which comprises an intelligent control system, a sliding rail, a plurality of sets of main branch supports and a plurality of setsof fine branch supports, wherein each set of main branch supports are in sliding fit with the sliding rail and are electrically connected with the intelligent control system; and the fine branch supports are used for modeling the fine branches on a main branch, and each set of fine branch supports corresponds to a fine branch on one main branch. Each set of fine branch supports comprises a slidingblock, a first telescopic rod and a second telescopic rod, wherein the sliding block is arranged on the sliding rail in a sliding mode, the first telescopic rod is fixedly arranged at the top of thesliding block, the top of the second telescopic rod is connected with the bottom of the first telescopic rod through a ball, and the top of the second telescopic rod is connected with the main branchthrough a small hook. The method has the advantages that the position and the shape of the main branches are controlled through the intelligent control system, so that the intelligent modeling of themain branches of a bonsai can be realized; and the shapes of the fine branches on the main branches can be modeled by the aid of the fine branch supports.
Owner:WUHAN BAIQI TECH CO LTD

Complex production process intelligent modeling method

The invention relates to a complex production process intelligent modeling method in the manufacturing industry; the intelligent modeling technology comprises two parts: product manufacturing process model visualization and visualization form intelligent building product manufacturing process modeling technology; the product manufacturing process model visualization comprises the following steps: reading a product physical storage model; building a product processing craft assembly; building a product assembly; building hinges between all assemblies; traversing all technical nodes, if certain craft needs other processing product, then building a visualization tree, a father node assembly and a craft assembly of the processing product, and the building process repeats the said steps. The visualization form intelligent building product manufacturing process modeling technology comprises the following steps: building a product visualization tree; verifying the visualization tree; traversing the visualization tree and forming the physical storage model. The complex production process intelligent modeling method is the main base for production scheduling, production monitoring, production tracking, and production early warning, thus improving product quality, reducing material consumption, optimizing production composition, and improving company market competitiveness.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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