41 results about "Functional modeling" patented technology

A method and system for multi-scale anatomical and functional modeling of coronary circulation is disclosed. A patient-specific anatomical model of coronary arteries and the heart is generated from medical image data of a patient. A multi-scale functional model of coronary circulation is generated based on the patient-specific anatomical model. Blood flow is simulated in at least one stenosis region of at least one coronary artery using the multi-scale function model of coronary circulation. Hemodynamic quantities, such as fractional flow reserve (FFR), are computed to determine a functional assessment of the stenosis, and virtual intervention simulations are performed using the multi-scale function model of coronary circulation for decision support and intervention planning.

A method and apparatus for modeling a neural synapse function in analog hardware whereby the multiplication function inherent to the operation of a neural synapse is computed by applying a voltage on the gate-source terminals and an independent voltage on drain-source terminals of a MOSFET further using the resultant drain current of the latter device in non-saturation mode as function implementing a computation essentially close to multiplication function between the aforesaid voltages. Analog circuit is provided, capable of generating an output current signal which is proportional in magnitude, within a certain range, to a function computing essentially a sum of weighted input signals-products of corresponding pair of current input signal, and voltage control signal applied to a plurality of inputs thus capable of constructing an artificial neuron model.

The invention provides a functional modeling method for an indoor scene. The functional modeling method includes the first step of extracting the pose of a depth camera, integrating the pose of the depth camera into an ICP algorithm and carrying out real-time registration reestablishment on three-dimensional surfaces according to the ICP algorithm, the second step of carrying out segmenting and clustering to realize semantic segmentation of the scene, the third step of extracting point-cloud sets with the area larger than a preset threshold value, the fourth step of judging whether point-cloud sets perpendicular to the ground exist, the fifth step of extracting a handle, the sixth step of pulling out the handle, recording the opening process, the closing process and the internal structure and carrying out functional labeling, the seventh step of judging whether point-cloud sets parallel to the ground exist, the eighth step of carrying out Euclid clustering and segmenting to obtain a plurality of individual objects, the ninth step of moving away the individual objects, recording blocked parts and carrying out functional labeling, and the tenth step of carrying out summarizing to obtain a functional model of the indoor scene. According to the method, functional operation can be conducted on the parts with labels, so interactive experience of users is greatly promoted.

The invention discloses a product function gene modeling system and method. The system comprises a behavior describing unit, a overall function determining unit and a overall function decomposing unit, wherein the behavior describing unit is used for describing the functional relation of parts among products; the overall function determining unit is used for analyzing functional requirements suggested by users, grasping the core of the overall design task to obtain the design requirements of the products and abstracting the overall function of the products; the overall function decomposing unit is used for decomposing the overall function into a plurality of simple subfunctions. The system also comprises a product function reasoning module which further comprises an FTML file reading unit, a function element matrix converting unit, a matrix adjusting unit and an FTML film converting unit. Aiming at function design knowledge and design object knowledge, the invention provides the function modeling method based on gene encoding and adopts an extensive makeup language (XML) and a matrix to represent and establish an evolving and reasoning method of the product parts on the basis of encoding.

The invention discloses a modeling and simulation method of a tracking mode of an unmanned aerial opto-electronic stabilizing turntable. The opto-electronic stabilizing turntable tracking function is achieved on the base of digital modeling algorithm simulation, and the method is used for three-dimensional virtual simulation training of the unmanned aerial vehicle equipment which carries the opto-electronic stabilizing turntable or theoretic verification of the new opto-electronic stabilizing turntable. The modeling and simulation method mainly includes a functional modeling of the opto-electronic turntable and nonlinear direction line tracking algorithm realization of the opto-electronic turntable. According to the modeling and simulation method, a two-freedom functional model is constructed to realize the nonlinear direction line tracking algorithm. The modeling and simulation method solves the modeling problems of the functional modeling and the tracking algorithm modeling of the opto-electronic turntable of a three-dimensional visual simulation test, and has a good engineering availability.

A method and apparatus for designing objects using functional modeling are described. In one embodiment, the method includes providing a set of behavioral parameters associated with a design feature selected by a user, receiving one or more of these behavioral parameters from the user, and modeling the design feature based on the behavioral parameters received from the user. The modeling of the design feature does not require any user intervention.

The invention relates to a geography information system (GIS) technology, in particular to a spatial information functional plug-in workflow construction method which comprises the steps that: Step (1) a database is connected and a data source is set; Step (2) a process template is created, process parameter information is added according to the factors of a process realization function, and the parameter information which is filled in is written into a workflow database table; Step (3) process parameters are defined for transmitting in and out parameters required by all functional nodes in a process; Step (4) a GIS workflow functional node is created, and the properties of the functional node are edited; Step (5) workflow starting and ending logic, activity execution logic and process control logic are defined; Step (6) the process parameters are edited and executed; and Step (7) the embodiment of workflow is debugged and operated according to workflow engine algorithm based on an activity state promoting model. The spatial information functional plug-in workflow construction method can support functional components in a GIS function library, so as to provide support for realizing visualized GIS functional modeling.

The invention provides a functional modeling-based more-electric aircraft power system modeling method and a model thereof, which comprises a variable-speed and variable-frequency (VSVF) generator module, a bus bar connection circuit breaker module, a bus bar control unit module, an electric energy conversion device module, a circuit module and a load module. According to the technical scheme of the invention, the invention focuses on a functional modeling method without analyzing the actual specific structure of each component. Therefore, the method has the advantages of fast modeling speed, simple model, high precision and the like. The method is applicable to the comprehensive modeling process of a VSVF power system for multiple electric aircrafts. In this way, the operation state of the VSVF power system for multiple electric aircrafts can be effectively reflected and the failure analysis is enabled.

A method is provided for simulating a flexible tube in an environment. The method comprises determining a model of the flexible tube according to a plurality of internal constraints of the flexible tube and a plurality of external constraints of the flexible tube, determining a workspace of the flexible tube according to a model of the flexible tube, and determining a model of an active bending behavior of a tip of the flexible tube.

The invention relates to an information flow modeling method for a power grid energy management system, which belongs to the technical field of power system analysis and evaluation. The method comprises the steps that the key factor information flow of power information-physical coupling is extracted as the analysis target; input and output information of each module in the actual system are abstracted as information nodes respectively, and the function of each module is modeled as an information branch; and the information flow model of the energy management system is designed based on the information flow mapping of the graph theory. According to the invention, the method extracts the core characteristics of the information-physical coupling between a power system and the energy management system; theoretical modeling of the power grid energy management system is realized; and based on the model, the influence of information disturbance on control variables can be analyzed, which provides a theoretical support for evaluation and optimization of the energy management system in future.

A computer-implemented method, apparatus, and computer program product for assisting in dynamic verification of a System Under Test (SUT). The method comprising obtaining a set of functional attributes and associated domains with respect to a System Under Test (SUT), and obtaining a set of restrictions over the functional attributes and associated domains. The method comprising encoding a Binary Decision Diagram (BDD) to represent a Cartesian cross-product test-space of all possible combinations of values of the functional attributes excluding combinations that are restricted by the set of restrictions, whereby the BDD symbolically represents the Cartesian cross-product test-space. The method may further comprise analyzing the Cartesian cross-product test-space by manipulating the BDD so as to assist in performing dynamic verification of the SUT.

The invention provides a method for automatically predicting reliability of typical discrete devices based on Saber. The method includes the following steps that (1) characteristic parameters, which affect the working failure rate, of a function model itself are expanded in the function model; (2) electric stress parameters of the devices are acquired through simulation; (3) an environmental factor is added in the function model, and corresponding environment variables are defined in the original function model by the combination of instruction manuals of the discrete devices of different categories; (4) on the basis, a working failure rate model is embedded in the Saber function model; (5) symbols of the devices of different categories are built to recognize the embedded model for automatically predicting reliability; (6) the model for automatically predicting reliability is utilized to conduct Saber circuit function modeling and simulation; (7) correctness inspection is conducted. The method has the advantages that Saber software is utilized, a universal method for expanding device models is provided, parameter values are transmitted into elements, then, a stress analysis model is utilized to automatically calculate the working failure efficiency, and therefore electrical parameter analysis and reliability prediction of the elements can be synchronously carried out.

The invention discloses an integrated supervisory control simulating training system model data management method for equipment functions in railway integrated supervisory control. The integrated supervisory control simulating training system model data management method includes the steps that based on function simulating for equipment, a template-equipment model data management structure is established; through an equipment function simulating logic template, function simulation defining of the equipment template is performed on logical relationships among point templates included by the equipment template; equipment simulating model data configuration is performed, and modeling and function simulating are performed on data in a railway integrated supervisory control simulating training system. On the basis of function simulating for the equipment, the management structure based on the template-equipment model data is established, and in combination with the equipment function simulating logic template, the problems that according to the traditional data modeling and function simulating design method in the integrated supervisory control simulating training system, because modeling management is performed for point functions, integrality is poor, and the data volume is large are solved.

The invention relates to the technical field of workflows, in particular to a Java-based cross-platform workflow implementation method and system. The Java-based cross-platform workflow implementationmethod is characterized by comprising the following steps: S1, function registration: obtaining classes, interfaces, methods and parameters from a Jar packet, and selectively registering the functionmethods into a function database to facilitate function display, search and function modeling; s2, building a functional process; s3, function process management and service release: performing unified management on the function process templates, providing import, export, edit and delete functions of the function process templates, and realizing process management and release; s4, functional process service operation testing; and S5, function process service calling: calling through a function library web interface. According to the invention, the service process can be flexibly defined, andthe cross-platform establishment of the workflow is supported.

The invention discloses an inertial state modeling and simulation method of an unmanned onboard photoelectric stabilization rotary table. The inertial state modeling and simulation method comprises the steps of firstly carrying out abstracted functional modeling on a photoelectric rotary table; and then utilizing model azimuth angles and model elevation angles calculated by a visual axis inertia stable recursive iteration algorithm. According to the invention, a two-degree of freedom functional model of the photoelectric rotary table is constructed, the visual axis inertia stable recursive iteration algorithm is realized, the problems of functional modeling and inertial state algorithm modeling of a three-dimensional visual simulation photoelectric rotary table are well solved, and good project availability is achieved.

A method is provided for constructing at least a functional model of a complex system including a plurality of components. The method includes constructing the functional model of the complex system, including a hierarchized set of modelled functional components. Each of the functional modelled components is an instance of an object class belonging to a specific set of object classes. The specific set of object classes includes a “Functional Router” class, representing an abstract model of a dummy router, which describes a set of interconnections between at least two modelled functional components, each instance of the “Functional Router” class being called a modelled functional router. The functional model of the system includes at least one functional modelled router.

The invention discloses a Matlab-based DC control protective function module modeling method and device. The method comprises the steps of classifying, combining and packaging base elements in a baseelement bank according to element types through a combination packaging mode and an M code mode, so as to obtain an enriched new base element bank; and processing a logic control relationship of the new base element bank according to a DC control protective function, and packaging the new base element bank into an intermediate element corresponding to the DC control protective function. In the existing DC control protective function modeling method, the control protective model program has massive intermediate variables, consequently, the program needs to be simplified greatly, which affects authenticity of simulation results; further, a lot of DC control protective screen cabinets and interfaces of simulators are used, so that simulation resources and costs are lowered.

The invention discloses an industrial equipment data acquisition system with zero code configuration, and the system comprises a software end and a hardware end; the software end is used for modeling external functions of the hardware end and standardizing model attributes of the hardware end; when the model attribute specification of the hardware end is completed, the software end is used for collecting configuration rules for the hardware end and storing the collection configuration rules through a JSON specification; after the hardware end model attribute specification and the acquisition configuration rule are completed, the software end is used for establishing an acquisition template rule for the hardware end; and after the acquisition template rule is established, the software end issues the acquisition template rule and the set configuration rule to the application gateway to realize data acquisition of the hardware end. According to the invention, by establishing the collection template rule and the set configuration rule and issuing the collected rule to the application gateway, data collection of the hardware end is realized, and the data collection efficiency is improved by nearly 90%.

The invention provides a single clock synchronous concurrent network and a data passing method thereof. A global unified data packet is formed to circulate in the network, so that each switch in the network can receive the global unified data packet, and the technical contradiction that a distributed network in the prior art is more distributed and more concentrated can be solved; meanwhile, the reference standards of the generation time of the unified data object are consistent through single clock alignment, the single time domain design of the whole system is realized, and the problem of multiple time domains of multiple distribution systems in the prior art is solved. According to the method, computing resources are not occupied, meanwhile, a more accurate time-triggered data circulation mechanism can be provided, a global unified data packet can express all contents of all external systems, analyze the contents into the contents and then decompose the contents into thresholds and states of all devices in the external systems, and the difference of functional modeling is solved, so that the problem that task function models in an existing distributed network are coupled in the aspects of time, space, communication and protocols is solved.

The invention provides a reusable monitoring software design method based on XML. The method comprises steps of dividing an application program into a task, an interface event, a driving function, a processing process and a data file, and carrying out functional modeling of monitoring software by adopting an XML language; compiling an application program model file, a data table model file and a driving function model file generated after modeling through a predetermined compiling program; and generating model data stored in a data structure of a multi-way tree in a memory, generating a wholeapplication program engineering framework, and creating a function for a corresponding event by circularly traversing all nodes in a program task for multiple times until all tasks are processed to obtain a source code of the application program of the monitoring software. The object-based modeling method is adopted, the efficient, practical and normative monitoring software development method isprovided, the model file has reusability and maintainability, and especially for development of a large number of similar applications, the development efficiency of the monitoring software can be greatly improved.

The invention provides a Saber-based circuit failure simulation analyzing method. The method is characterized by comprising the following steps: 1, performing Saber circuit function modeling and simulation; 2, determining the failure mode of a device to be simulated; 3, modeling the failure; 4, injecting the failure; 5, simulating a failed circuit to generate a failure simulation result; 6, setting a failure criterion; and 7, giving a failure analyzing result. Regarding the problem that the conventional circuit failure simulation can be only used for digital circuits, the method provides a practical failure simulation method based on the digital-analog hybrid simulation platform Saber. Furthermore, many failure simulation models which cannot be solved by predecessors are added, and 48 failure modes can be simulated. Realization of automatic failure injection greatly improves the failure simulation efficiency. The direct interface between Saber and failure simulation is broken through,and an effective signal failure determination method is provided.

The invention discloses an intelligent fusion terminal micro-application software framework which comprises a virtual model and virtual equipment model modeling module, a data center interaction module and an intelligent analysis module. The model configuration file is input to the virtual model and virtual device model modeling module for analyzing the configuration file to establish a data structure, the data structure is input to the data center interaction module, the data center interaction module registers the virtual model and the virtual device to a data center, meanwhile, an actual device data list is subscribed, and the actual device data list is displayed. The intelligent analysis module obtains real-time data of design equipment from the data center, analyzes the real-time data and writes the real-time data into virtual equipment instance data of the data center interaction module, and then the data center interaction module issues the real-time data to the data center. According to the method, various intelligent analysis function modeling can be realized on the intelligent fusion terminal, and development and upgrading of an intelligent analysis algorithm are facilitated, so that rapid development and online of various micro-applications of the intelligent fusion terminal can be realized.

The invention discloses a digital circuit function modeling method and system based on internal entity state transition. According to the invention, functional points and internal entities are analyzed and extracted according to the functional specifications of the target digital circuit; and performing formalized description on the behavior process of the function point by adopting a stage transfer model with function attribute classification, and performing formalized description on the internal entity of the circuit by adopting an expansion finite state machine, thereby obtaining a functionmodel of a target digital circuit formed by the stage transfer model and the expansion finite state machine. According to the invention, the time sequence characteristic of each functional point in the digital circuit and the concurrent characteristic of multi-functional point execution can be efficiently and completely described; The method is suitable for function modeling of a digital circuit,has the advantages of being formalized and graphical, has good expansibility and applicability, and is convenient to carry out engineering application in the integrated circuit design verification process, especially in the aspect of excitation automatic generation.

The invention discloses a typical weapon ammunition damage efficiency evaluation software system which comprises a three-dimensional visual modeling module, a vulnerability analysis and display module, an ammunition target rendezvous process demonstration module, a damage effect demonstration verification module, a damage efficiency evaluation module and a data management module. The three-dimensional visual modeling mainly realizes a three-dimensional visual modeling function of a typical target and conventional ammunition, and the modeling environment supports a rapid modeling mode based ona standard component and a standard attribute and supports a general operation mode of general commercial software; a dual-model display mode based on a view and a logic hierarchical structure is provided, and research results such as target characteristic analysis, damage effect analysis and calculation and damage index evaluation are comprehensively integrated through three-dimensional visual simulation and related technologies. The functions of target vulnerability analysis automation, bomb-target intersection in damage demonstration verification visualization and damage efficiency evaluation quantification are achieved.

A method and apparatus for modeling a neural synapse function in analog hardware whereby the multiplication function inherent to the operation of a neural synapse is computed by applying a voltage on the gate-source terminals and an independent voltage on drain-source terminals of a MOSFET further using the resultant drain current of the latter device in non-saturation mode as function implementing a computation essentially close to multiplication function between the aforesaid voltages. Analog circuit is provided, capable of generating an output current signal which is proportional in magnitude, within a certain range, to a function computing essentially a sum of weighted input signals-products of corresponding pair of current input signal, and voltage control signal applied to a plurality of inputs thus capable of constructing an artificial neuron model.

The invention discloses a relay protection system functional modeling method based on an IEC61850 standard. The method comprises the following steps of mapping a model based on the IEC61850 standard to a model based on an IEC61499 standard according to a mapping rule to obtain a functional state transition state machine model; performing graphical description on a state machine through an SDL (system descriptive language); compiling a correct system description under a modeling environment through a Cadvanced-to-C tool to generate a standard C code program and an interface function which are consistent with an SDL graphical description system; implementing the interface function; completing the integrating and compiling of the program and a Win32 platform to obtain a practical virtual realizing system consistent with a function of an object system. According to the method disclosed by the invention, the problem that no relay protection system-level modeling method is provided is solved; the efficiency of an application scene such as system test can be improved, and the relevant workload caused by a functional change is reduced.