Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

48 results about "Goal modeling" patented technology

A goal model is an element of requirements engineering that may also be used more widely in business analysis. Related elements include stakeholder analysis, context analysis, and scenarios, among other business and technical areas.

Computer Method and Apparatus for Providing Model to Model Transformation Using an MDA Approach

A Model Transformation Authoring Framework (MTAF)method and apparatus for authoring and providing model-to-model transformations from one domain to another domain is disclosed. Given a domain and a target domain, at least the given domain having a respective structured hierarchy, the invention system enables a user to specify a declarative mapping (transformation declarative) between a domain specific language modeling the given domain and a modeling language modeling the target domain. The declarative mapping models how the domain specific language modeling the given domain relates to the modeling language of the target domain. The system generates a transformation code implementation of a transformation from the given domain to the target domain. The MTAF provides to the user design decisions with respect to Specification, Transformation Rules, Rule Organization, Rule Application Control, Source-Target Relationship, Incrementality, and Directionality and Tracing. The generated transformation code is executed at runtime to perform the transformation of the domain specific language of the given domain to the modeling language of the target domain. Instances of models of the target domain resulting from the performed transformation at runtime may be output to other model transformations, to JET templates, or may be persisted, merged or chained among other post processing.
Owner:IBM CORP

Cloud computing task scheduling method based on response time optimization

The invention relates to a cloud computing task scheduling method based on response time optimization. The method includes the steps that a cloud computing system based on response time optimization is constructed, the transmission time of task fragments is calculated, the average processing time of the task fragments at computational nodes is calculated, the total processing time of the task fragments is calculated, task response time is calculated, an objective function of the cloud computing task scheduling problem is constructed, and the task fragmentation scheme of schedulers is calculated. Starting from parallel processing of the task fragments, the cloud computing task scheduling method based on response time optimization uses the longest execution time of task fragmentation as the task response time, the minimum task response time of each scheduler is used for target modeling, and a novel task scheduling method is obtained. The cloud computing task scheduling method based on response time optimization can more reflect the characteristic of task parallel processing. Experiments show that whether the response time value of each scheduler or the objective function value, the cloud computing task scheduling method is superior to both a game playing algorithm and a balance scheduling algorithm, and when the scale of the system is increased or the load is increased, the cloud computing task scheduling method based on response time optimization has obvious advantages compared with the other two algorithms as well.
Owner:北京知识产权运营管理有限公司

Light scattering modeling method for complex spatial object

InactiveCN101901302ASolving Light Scattering Calculation ProblemsPrevent Participation in ComputationPhotometrySpecial data processing applicationsThree-dimensional spaceComputational physics
The invention relates to a light scattering modeling method for a complex spatial object, belonging to the technical field of modeling aerospace spatial objects. The method of the invention comprises the following steps: firstly, establishing a light scattering empirical model of a material according to the comprehensive light scattering intensity of the material; obtaining incident sections of the spatial object by parallel projection transformation, and judging and selecting an effective incident section; according to the light scattering empirical model of the material, counting the mean value of the reflectivity of pixels on the drawn effective incident section to obtain the mean reflectivity; calculating the area of the effective incident section according to the proportional relation between the total number of the pixels on the effective incident section and the area of a drawn window; and establishing a light scattering model of the complex spatial object. In the invention, on the basis of considering the incoherent scattering characteristic and coherent scattering characteristic of the material, according to the practical propagation characteristic of rays, complex calculation of a three-dimensional space is projected to a two-dimensional surface, the computer graphics theory is utilized for realizing quick determination of the effective incident section and the mean reflectivity of the section, and the problem of light scattering calculation of the complex spatial object is better solved.
Owner:THE PLA INFORMATION ENG UNIV

Computer method and apparatus for providing model to model transformation using an MDA approach

A Model Transformation Authoring Framework (MTAF) method and apparatus for authoring and providing model-to-model transformations from one domain to another domain is disclosed. Given a domain and a target domain, at least the given domain having a respective structured hierarchy, the invention system enables a user to specify a declarative mapping (transformation declarative) between a domain specific language modeling the given domain and a modeling language modeling the target domain. The declarative mapping models how the domain specific language modeling the given domain relates to the modeling language of the target domain. The system generates a transformation code implementation of a transformation from the given domain to the target domain. The MTAF provides to the user design decisions with respect to Specification, Transformation Rules, Rule Organization, Rule Application Control, Source-Target Relationship, Incrementality, and Directionality and Tracing. The generated transformation code is executed at runtime to perform the transformation of the domain specific language of the given domain to the modeling language of the target domain. Instances of models of the target domain resulting from the performed transformation at runtime may be output to other model transformations, to JET templates, or may be persisted, merged or chained among other post processing.
Owner:IBM CORP

Adaptive object feature tracking method

The invention provides an adaptive object feature tracking method, belongs to the technical field of computer graph and image processing and can effectively solve the problem of stably tracking rigid and non-rigid target objects in real time for a long time. The adaptive object feature tracking method comprises the following steps: constructing a pixel-based target grayscale table saving grayscale and pixel point information, wherein the grayscale is contributive to a predicted target center position; performing adaptive two-point feature selection based on the target grayscale table and mutual information so as to determine a feature combination which can perfectly describe a target and model the target. In a tracking process, according to the adaptive object feature tracking method, firstly a Hough table corresponding to images is constructed according to the target grayscale table, secondly a predicted target position is searched and determined according to a target model, thirdly a position corresponding to the maximum pixel point number in the Hough table is searched within a relatively small local range by taking the predicted target position as the center, and the position is taken as the final target position, so that the target positioning is completed. The adaptive object feature tracking method is mainly applied to tracking of object targets.
Owner:四川华创智能科技有限公司

Safety-conscious routing and power distribution method for wireless multi-hop network

The invention discloses a joint routing and power distribution method for a wireless multi-hop network, which integrates the energy efficiency, the transmission reliability and the safety. By considering a relatively realistic scene that both the position and the channel state information of an eavesdropper are unknown, for the wireless multi-hop network in a decoding and forwarding mode, the invention provides a safety routing and power distribution method under end-to-end bit error rate constraint. According to the method disclosed by the invention, a power distribution and routing strategy,which can satisfy the maximum safety connection probability, can be obtained by physical layer safety capacity definition based on an information theory at first; then, modelling is carried out by taking the strategy and the end-to-end bit error rate as the constraint and the total power consumed by a minimum path as a target; and a power distribution algorithm and a safety routing algorithm based on a classical Bellman-Ford algorithm are obtained by deduction. By means of the joint design method, the information transmission safety is ensured; furthermore, the transmission accuracy is realized; simultaneously, energy utility of the network is improved; and thus, the method has a certain practical significance.
Owner:HANGZHOU DIANZI UNIV

Multi-grid precondition method for fast acquiring complex target radar echoes

The invention discloses a multi-grid precondition method for fast acquiring complex target radar echoes. The method includes: modeling a target, and using coarse triangular grids to subdivide the surface of the target; subdividing the coarse grids to obtain nested grids, and building RWG basis functions on grid layers; using RWG basis function expansion relations of adjacent grid layers to build a first set of interpolation, limiting operator and coarse grid matrixes, building rotation basis functions at the edges of the grid layers, and using RWG basis function expansion relations of adjacent grid layers to build a second set of interpolation, limiting operator and coarse grid matrixes; and using the multi-grid precondition method to solve equation sets, and using the first set of interpolation, limiting operator and coarse grid matrixes and the second set of interpolation, limiting operator and coarse grid matrixes to accelerate convergence of matrix equation iteration solution. Due to the fact the basis functions are constructed at the edges of the grids, the basis functions are high in modeling precision, two sets of operators are used to accelerate convergence of matrix equation iteration solution, and matrix equation solution can be accelerated evidently.
Owner:NANJING UNIV OF SCI & TECH

Video smoke recognition method based on dynamic features

The invention discloses a video smoke recognition method based on dynamic features. The method has the advantages of both real-time performance and accuracy. The method comprises steps: (1) continuouskey frames of an input video are firstly extracted, noisy points are filtered through a median filter, and the definition is improved through contour mending; (2) through foreground difference processing on the continuous frames, modeling is carried out on moving targets, a VR feature classifier is used to extract dynamic features, the moving targets are classified in combination of typical dynamic features, and a smoke target is recognized; and (3) finally, the smoke target and a typical smoke image are subjected to similarity comparison, thereby improving the recognition accuracy. The videosmoke recognition method based on dynamic features is characterized in that as the VR feature classifier is designed, the target dynamic features in a complicated scene can be effectively extracted,interference of people, cars, trees, flags and the like is removed through target dynamic feature differences, the smoke target is accurately recognized, and a smoke recognition method with strong adaptability, real-time performance and accuracy is provided and can be used for smoke early warning at an early stage of fire in a complicated environment.
Owner:尹航

Three-dimensional modeling method and system

ActiveCN108921426AAchieve the purpose of effectively dissectingIncrease productivityResourcesManufacturing computing systemsOriginal dataSimulation
The invention discloses a three-dimensional modeling method and system. The method comprises the steps that original data of a target modeling article is collected, the original data is shared and stored, and a corresponding modeling task list is added; load balancing is performed according to the modeling task list and the task processing condition of an initial model production terminal which iscurrently logged in, and an appropriate production terminal is selected to distribute an initial modeling task; an operator of the initial modeling task is received, the original data is read, initial model production is performed according to modeling requirements, and the initial modeling task is submitted after an initial modeling result is formed; after task distribution software receives theinitial modeling task, a fine modeling task is distributed according to the task processing condition of a fine model production terminal which is currently logged in; and after the fine modeling task is received, an operator of the fine modeling task acquires the stored initial modeling result, fine model production is performed according to the initial modeling result to form a fine modeling result, and the fine modeling task is submitted. Through the three-dimensional modeling method and system, the overall ability requirement on model data production personnel is lowered, and the production efficiency of three-dimensional modeling is improved.
Owner:浙江景致数据技术有限公司

Conductor target electromagnetic scattering simulation method based on NURBS (Non-Uniform Rational B-Splines) curved surface modeling

ActiveCN106156431AImproving the Efficiency of Electromagnetic Scattering SimulationsElectromagnetic scattering simulation implementationSpecial data processing applicationsPhysical opticsElectrical conductor
The invention discloses a conductor target electromagnetic scattering simulation method based on NURBS (Non-Uniform Rational B-Splines) curved surface modeling, aiming at mainly solving the problems of an existing method that the simulation efficiency is low and the requirements on a computer memory are high. The conductor target electromagnetic scattering simulation method comprises the following steps: 1, modeling a scattering target with an NURBS curved surface through commercial software Rhino; 2, decomposing a parameter region of a scattering target model and deducing a coordinate formula of the NURBS curved surface, so as to obtain conductor target physical optical scattering integral and edge diffraction field integral formulas; 3, calculating values of physical optical scattering integral and edge diffraction field integral; and 4, obtaining a single-station radar scattering section RCS of a conductor target according to the values of the physical optical scattering integral and the edge diffraction field integral. Under the condition of guaranteeing the precision, the simulation efficiency is improved, the requirements of simulation experiments for the computer memory are reduced, and the method can be used for obtaining the single-station radar scattering section RCS of the conductor target.
Owner:XIDIAN UNIV

Method and device for establishing three-dimensional model of long-distance pipeline

The invention provides a method and a device for establishing a three-dimensional model of a long-distance pipeline, belonging to the technical field of long-distance pipelines. The method comprises the steps that three-dimensional modeling data of the long-distance pipeline are obtained, wherein the three-dimensional modeling data are used for creating pipe section units of the three-dimensional model of the pipeline, the three-dimensional modeling data comprise model node coordinates, the model node coordinates comprise pipeline starting point coordinates, middle node coordinates and pipeline terminal point coordinates, the three-dimensional model of the pipeline is composed of a plurality of the pipe section units, and middle nodes are located on the pipe section units and located at the joints of the adjacent pipe section units; based on the three-dimensional modeling data of the long-distance pipeline, a model building file is generated, wherein the model building file comprises a plurality of modeling commands suitable for target modeling software, and the modeling commands are used for building the pipe section units according to the model node coordinates; and the target model software is called to execute the modeling commands in the model building file, and the three-dimensional model of the long-distance pipeline is generated.
Owner:PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products