39 results about "Graphical simulation" patented technology

A real-time simulation method and system for large deformations is provided. Green's nonlinear strain tensor accurately models large deformations. Modal analysis based on a linear strain tensor has been shown to be suitable for real-time simulation, but is accurate only for moderately small deformations. In the present invention, the rotational component of an infinitesimal deformation is identified, and traditional linear modal analysis is extended to track that component. And the invention develops a procedure to integrate the small rotations occurring at the nodal points. An interesting feature of the formulation is that it can implement both position and orientation constraints in a straightforward manner. These constraints can be used to interactively manipulate the shape of a deformable solid by dragging/twisting a set of nodes. Experiments show that the technique runs in real-time even for a complex model, and that it can simulate large bending and/or twisting deformations with acceptable realism.

The invention relates to a hot rolling manufacturing management level graphical rolling line material tracking method, which mainly solves the technical problem that a manufacturing manager can not remotely monitor hot rolling line production and equipment status. The method has the technical proposal that the hot rolling manufacturing management level graphical rolling line material tracking method comprises the following steps: a. a rolling line signal tracking step: tracking signal data of the key position from an export of a heating furnace to the end of coiling is collected by a rolling line tracking signal collector, and then is transmitted to a MES by communication software; b. a rolling line signal filtrating step: the received tracking signal is analyzed and treated by a rolling line tracking signal filter, and the efficient tracking signal is stored in a database; c. a rolling line signal monitoring and graphical simulation step: tracking signal change information collected by a rolling line tracking signal monitor is input into a rolling line tracking graphical emulator; a band steel action graph is drawn out in real time at a client of the MES; field actual rolling process is simulated; the position of the band steel and the equipment state of a rolling mill are reflected in real time. The method mainly realizes real time tracking and dynamic mapping a track view on the material position during rolling process on the MES.

The invention relates to the technical field of simulation calculation of a power system, in particular to a software interface for automatically generating a simulation calculation model of a power system computer aided design (PSCAD) power system. The software interface comprises a power system-geographic information system conversion module used for resolving a geographic information database,a power system-energy management system conversion module used for resolving an energy management database, a graphical simulation file used for writing a PSCAD simulation calculation model, and a simulation model automatic generation module used for automatically generating a simulation calculation model. In the software interface, the conventional various data resources of electric utilities isfully utilized, so that the automatic compilation of the PSCAD simulation calculation model is realized, the compilation process of the simulation calculation model is greatly simplified, the compilation difficulty of the model is reduced, the compilation efficiency of the model is greatly improved, and the accuracy of the model is improved, wherein the generated simulation calculation model not only can be used for the conventional power flow calculation and steady-state analysis but also can be used for various fields such as power quality evaluation, fault analysis and the like.

A process for modeling and graphically simulating a real environment in order to train a user to obtain a desired performance. This process enables the user to input model parameters from real events to simulate the real event, to interact with the system, and to track the results. The process uses factors, one of which is the user, to simulate real scenarios. Each factor is defined by parameters and data from the real event. All factors are input prior to the simulation; the user's event data is input automatically as the user reacts to the other factors' actions during the simulation. The system tracks the user's performance and compares it to what happened in the real event. This system has particular application to training the user to respond properly in real situations, such as sporting events, medical emergencies, military missions, and casino gaming.

The invention discloses a novel mechanical principle experiment assessment platform, and relates to the field of experiment and assessment equipment production, in particular to the novel mechanical principle experiment assessment platform. The novel mechanical principle experiment assessment platform comprises a connecting rod cam module, a gear train module, a comprehensive innovation module and a virtual reality module, and important knowledge points about connecting rods, important knowledge points about cams, and important knowledge points about gears are contained. The novel mechanical principle experiment assessment platform comprises a rotary swing-preventing topic selection lifting mechanism, a gear experiment topic board selecting mechanism, an overlying type telescoping frame, an intermittent combined rack and the like. A virtual reality system based on a computer graph simulation visualization technology is developed, port transportation serves as the background, and enjoyment and practical significance of tests are improved. Compared with an existing device, the traditional teaching thinking is broken through, theory tests and experiment teaching are organically combined, the defects that traditional tests emphasize on theories and traditional experiments are single in function, fixed in content and boring in process can be effectively overcome, and the advantages of the traditional tests and the advantages of the traditional experiments can be absorbed, combined and given play to.

The invention relates to an HLA multi-field co-simulation method oriented to LabView graphical programming. The method comprises the steps that first, FOM extension is conducted according to a simulation demand, and a related HLA service and a call-back complex process are packed to be structured federation basis codes; a CLF interface specification of a C++ language program is called according to a LabView, a dynamic-link library file CLF-DLL capable of being directly called by a CLF node is written, and the relation of a LabView graphical simulation program and an RTI service function is established; the LabView is packed to be a CLF node HLA-CLF through the process that the CLF-DLL calls various services of the HLA; at last, the HLA-CLF is used for establishing a simulation process framework of LabView federation members, and a LabView graphical simulation model is called to form independent and complete LabView federation members. The HLA co-simulation method supporting LabView graphical programming can guarantee the consistency and the simulation efficiency of nodes of an HLA co-simulation system, can be used for LabView federation member development oriented to various HLA software platforms, and also can provide important reference for other simulation software (such as Matlab and Scilab) to be connected to an HLA/RTI simulation system.

A crane, a construction machine or an industrial truck, with a control station including at least one input means for inputting control commands, a graphical simulation module for calculating a virtual representation of the machine surroundings and/or machine components visible from the control station, such as a boom or a load hook, and a display device for displaying the calculated virtual representation, wherein a movement simulation module is provided for determining movements and/or deformations of the machine components according to the inputted control commands, depending on which the graphical simulation module calculates the virtual representation. Proposed is a data emulation using hardware components, which carry out actual actuating movements and thus simulate “actual” actuating movements of the machine to be simulated, in order to provide corresponding movement data more rapidly and with less computing performance, whereby a more realistic simulation can be achieved in real-time or almost real-time.

The invention, which belongs to the power grid field, relates to a risk assessment and assistant decision-making method and system for the regional grid operation. The method comprises: S1, acquiringrelated information of a grid as an input condition; S2, searching for a weak point of the grid and providing a possible accident analysis result and a corresponding processing measure and advice based on quantitative classification of a risk evaluation index; and S3, generating a risk assessment report to assist in the analysis of a grid operation risk, carrying out visual displaying, and carrying out a graphical simulation operation. According to the invention, the weak point of the grid is searched quickly by using the related information of the grid mode as the input condition, the possible accident analysis result as well as the corresponding processing measure and advice is provided, and the risk assessment report is generated to help the dispatcher analyze the grid operation risk. Therefore, quasi-synchronous safety assessment of the grid operation mode is realized; the workload of the operation dispatcher is reduced substantially; the risk assessment integrity and accuracy areimproved; and the power supply reliability of the grid is enhanced.

Use of scientific models to generate graphical virtual environments is described. In an embodiment at least two different scientific models are used. Input data which is representative of a real world environment is used by a first scientific model, such as a climate model, and data output by the first scientific model is then fed into a second, different, scientific model, such as an ecological model, in order to generate simulation data. The simulation data, which may, for example, detail the required population density of particular plant species and their size and age, is then used by a graphical simulation engine to generate a graphical virtual environment which may, for example, be used in a computer game such as a flight simulation game.

The present invention describes a system and method of high speed calculation of magnetic forces and collision detection between coin clusters in the graphical simulation of magnetic carom game, which has facilities of high speed calculation of magnetic forces, collision and dynamics in between the coins and coin clusters. Therefore, our invention is an interactive game simulation, which solves the problem of collision detection involving aggregates in an efficient manner.

The invention relates to an intelligent transformer substation operation and maintenance method based on a simulation training system. The intelligent transformer substation operation and maintenancemethod is realized through the following steps: step S1, establishing a 3D (Three-Dimensional) simulation platform; step S2, establishing a power grid primary side system graphical simulation module;step S3, establishing a power grid secondary side system graphical simulation module; step S4, establishing a display operating module; step S5, establishing a coach system module; step S6, carrying out simulation operation and maintenance operation on operation and maintenance of an intelligent transformer substation through the 3D simulation platform, the power grid primary side system graphicalsimulation module, a power grid secondary side system graphical simulation module, the display operating module and the coach system module. According to the intelligent transformer substation operation and maintenance method based on the simulation training system, provided by the invention, a platform is provided for operating personnel to directly know the operation of a transformer substation, a visual and real scene feeling is provided, the defect that the operating personnel is lack of operating experience of the intelligent transformer substation is remedied, polling simulation is realized, and basis is provided for operating personnel training and business operating in the future.

The invention discloses an ADAS ECU simulation test method. The method comprises the following steps: providing a video source; converting the video source into a video format conforming to the ADAS ECU to be tested, and injecting the video format into the ADAS ECU to be tested; providing a vehicle dynamics model and a graphical simulation scene, wherein the vehicle dynamics model outputs a test signal to the ADAS ECU to be tested according to the graphical simulation scene; and the ADAS ECU to be tested realizes an open/close MiL test of a graphical simulation scene and an in-loop Hil closed-loop test according to the output test signal. The invention further discloses an ADAS ECU simulation test system. Various test scenes or environments can be simulated in a limited test environment through real-time coupling of the real video stream and/or (simulated) graphical simulation scene and the vehicle dynamics model, the test cost and the test time can be greatly and remarkably saved, and the production efficiency can be improved.

A method for controlling a device for the treatment or refractive correction of the human eye using an electronic data processing system. The method provides a simple overview of the influence of all of the parameters. To this end, once the operating parameters have been determined, a graphical simulation of the operating procedure is carried out in the form of a graphical visualization.

The invention relates to a power system interaction simulation method based on augmented virtual reality. The method comprises the steps of collecting operation data, constructing a simulation model,transmitting and interacting virtual and real data, establishing an electric power system hybrid simulation model, and achieving electric power system augmented virtual reality interaction. Accordingto the method, an augmented reality technology is utilized to establish a virtual-real hybrid graphical simulation platform. In the simulation or experiment process, the internal structure and the operation mechanism of the equipment can be visually observed, and meanwhile, the virtual model and the real-time simulation data are superposed in the real environment, so that the immersive feeling isbrought to professionals.

The invention relates to an intelligent transformer substation simulation training system. The intelligent transformer substation simulation training system comprises a three-dimensional simulation platform and a power grid primary side system graphical simulation module, a power grid secondary side system graphical simulation module, a display operation module and a trainer system module which are connected with the three-dimensional simulation platform. The intelligent transformer substation simulation training system provided by the invention can conduct deep simulation on more complex protection models, provides a platform where the operation personnel can intuitionally understand operation of a transformer substation, offers visualized and real scene feeling, makes up the defect thatthe operation personnel lacks operation experience of the intelligent transformer substation, achieves patrol simulation, and provides basis for training the operation personnel and business operationin the future.

The invention provides a topology analysis method of a PSCAD (Power System Computer Aided Design) simulation model. The method comprises the steps of constructing an element coordinate analysis function, realizing analysis of coordinates of each element in the PSCAD element library, and calculating coordinates of all external connection nodes of the elements by giving reference coordinates and directions; constructing a file information extraction function, reading a PSCAD simulation model file, and extracting element parameters and element actual coordinates used in the model; constructing anelement topology analytic function, summarizing actual coordinates of the elements, defining each coordinate as a node, and obtaining node serial numbers of all external connection nodes of differentelements; and outputting the parameter information and the node serial numbers of all the elements to obtain the parameters of all the elements, obtaining the corresponding positions of different elements through the node serial numbers, and combining the parameter information and the node serial numbers to realize topology analysis of the PSCAD simulation file. According to the method, datamation can be effectively carried out on the PSCAD graphical simulation model, and direct data utilization is facilitated.

A real-time simulation method for thin shells undergoing large deformation is provided. Shells are thin objects such as leaves and papers that can be abstracted as 2D structures. Development of a satisfactory physical model that runs in real-time but produces visually convincing animation of thin shells has been remaining a challenge in computer graphics. For real-time integration of the governing equation, a modal warping method for shells is developed. This new simulation framework results from making extensions to the original modal warping which was developed for the simulation of 3D solids.

The invention relates to a simulator for a crane, a construction machine or an industrial truck, provided with a control station including at least one input means for inputting control commands, a graphical simulation module for calculating a virtual representation of the machine surroundings and/or machine components visible from the control station, such as a boom or a load hook, and a display device for displaying the calculated virtual representation, a movement simulation module being provided for determining movements and/or deformations of the machine components according to the inputted control commands, according to which the graphical simulation module calculates the virtual representation. According to the invention, the control station is movably mounted and can be moved by a drive device according to the movements and/or deformation of the machine components determined by the movement simulation module.

The invention discloses a radiofrequency ablation system, method and device and a medium. The radiofrequency ablation system comprises a real-time control module used for building a graphical simulation control model and adjusting the graphical simulation control model according to real-time setting evaluation data to obtain a target simulation control model; inputting a preset ablation signal and a real-time ablation signal in the real-time setting evaluation data into a target simulation control model to obtain a radio frequency ablation adjustment instruction; the radio frequency signal transmitting module is used for determining a radio frequency analog signal sent to an ablation object according to the radio frequency ablation adjustment instruction; and the data acquisition module is used for acquiring real-time setting evaluation data of the ablation object when the radio frequency signal transmitting module transmits the radio frequency analog signal to the ablation object, and transmitting the real-time setting evaluation data to the real-time control module. According to the technical scheme provided by the embodiment of the invention, rapid setting of the ablation parameters is realized under low learning cost, and the research and development period of parameter setting and the data maintenance difficulty are reduced.

A system is described that treats a solver as an ordered sequence of steps involving the different objects that have to be simulated and relationships between them. Tasks and the order of the tasks are obtained from each object and relationship. The tasks are merged into a sorted list. The solver traverses the list and passing each task to a corresponding object and relationship where the objects are interleaved during processing. The object or relationship then executes the task.