1593 results about "Real-time simulation" patented technology

A mobile device for enhanced navigation and orientation including a visualization interface, a first sensor for providing signals indicative of a movement of the mobile device, a second sensor for providing further signals indicative of a movement of the mobile device, and a processor receiving signals from the first and second sensors, calculating a position and an orientation of the mobile device from the received signals, and generating a real time simulation of an environment via the visualization interface based on the position and orientation of the mobile device. According to an embodiment, the first and second sensors are implemented as an inertial sensor and a GPS receiver, respectively.

A process control system simulation technique performs real-time simulation of an actual process control network as that network is running within a process plant in a manner that is synchronized with the operation of the actual process control network. This real-time, synchronized simulation system includes a simulation process control network and a process model which are automatically updated periodically during the operation of the actual process control network to reflect changes made to the process control network, as well as to account for changes in the plant itself, i.e., changes which require an updated process model. The disclosed simulation system provides for more readily accessible and usable simulation activities, as the process control network and the process models used within the simulation system are synchronized with and up-to-date with respect to the current process operating conditions. Moreover, this simulation system is more accurate as it uses process models developed from the current state of the process whenever the simulation system beings to perform a simulation. Still further, the disclosed simulation system is easy to operate, as it uses the same user interface applications as the actual process control network and can be initialized and used at any time during operation the process plant without any significant configuration or set-up activities.

Systems and methods for real-time modeling of a microgrid. In an embodiment, real-time data is acquired from a microgrid. Predicted data for the microgrid is generated using a first virtual system model of the microgrid, which comprises a virtual representation of energy sources within the microgrid. The real-time data and the predicted data are monitored, and a calibration and synchronization operation is initiated to update the first virtual system model in real-time when a difference between the real-time data and the predicted data exceeds a threshold. Parameters of the first virtual system model can be modified to create a second virtual system model, and aspects can be forecasted for the microgrid operating under the modified parameters of the second virtual system model. In a further embodiment, market price information can be received, and optimization solutions can be generated based on the market price information.

The invention relates to a method of performing an oilfield operation of an oilfield having at least one wellsite, each wellsite having a wellbore penetrating a subterranean formation for extracting fluid from an underground reservoir therein. The method steps include obtaining a plurality of real-time parameters from a plurality of sensors disposed about the oilfield, wherein the plurality of real-time parameters comprise at least one selected from a group consisting of real-time flow rate data and real-time pressure data of the wellbore, configuring a gridless analytical simulator for simulating the underground reservoir based on the plurality of real-time parameters, generating real-time simulation results of the underground reservoir and the at least one wellsite in real-time using the gridless analytical simulator, and performing the oilfield operation based on the real-time simulation results

A coupled real time emulation method for positioning and location system includes the steps of receiving real time trajectory data from a 6DOF trajectory generator and generating global positioning system simulated measurements and inertial measurement unit simulated electronic signals which are injected into an on-board integrated global positioning system/inertial measurement unit system. When the on-board integrated global positioning system/inertial measurement unit system is excited in dynamic operation, a performance thereof is able to be tested and evaluated as if carrying a real transportation test.

The invention discloses an embedded real-time emulation and fault simulation system based on multiple data buses, comprising upper computer simulation management software and an embedded real-time emulation and fault simulation device. The upper computer simulation management software guides the user to perform emulation configuration and fault setting aiming at a fault-tolerant control system to be tested through a human-computer interface, and generates fault emulation data of multiple redundancy equipment. The embedded real-time emulation and fault simulation device outputs the fault emulation data in real-time and synchronously through the multiple data buses, simulates the fault of the multiple redundancy equipment and outputs the fault data stream. The upper computer and a lower computer communicate mutually through an Ethernet to achieve the downloading of the information configuration, the fault emulation data and the emulation control command of the upper computer, and the uploading of the working condition of the lower computer. The invention overcomes the defects of poor universality and lower synchronous precision of the traditional multiple equipment fault simulation device based on the emulation, and is suitable for the test and the verification of the different redundancy fault-tolerant designs of the complex spacecraft system with numerous equipment and frequent data exchange.

A real-time virtual reality welding system including a programmable processor- based subsystem, a spatial tracker operatively connected to the programmable processor- based subsystem, at least one mock welding tool capable of being spatially tracked by the spatial tracker, and at least one display device operatively connected to the programmable processor-based subsystem. The system is capable of simulating, in virtual reality space, a weld puddle having real-time molten metal fluidity and heat dissipation characteristics. The system is further capable of displaying the simulated weld puddle on the display device in real-time.

The invention discloses an RT-LAB based microgrid simulation testing system. The system comprises an RT-LAB simulation system, a DSP physical system, a power amplifier, a microgrid physical simulation system and a microgrid monitoring system; the RT-LAB simulation system is used for building microgrid and distribution network simulation models and providing a real-time simulation environment; the DSP physical system is used for producing a control signal to a converter circuit built in the simulation system; the power amplifier is used for connecting the RT-LAB simulation system and the microgrid physical simulation system; the microgrid physical imitating system is used for forming a digital physical microgrid with the RT-LAB simulation system and accepting the monitoring and dispatching control of the monitoring system; the microgrid monitoring system is used for monitoring the DSP physical system, a microgrid digital simulating model and the physical simulation system. According to the system, the microgrid and distribution network simulating models are built on the RT-LAB, the microgrid physical simulation system is provided, so as to truly simulate the running states of a power system and the microgrid; the system has the advantages of real-time simulating, online parameter adjusting, and being rich in interfaces, rich in testing type, flexible to switch the testing mode, simple to operate, safe and reliable, efficient and economical.

A method for detecting parallel collision of real time interactive operation facing complicated scene includes utilizing parallel generating means based on microcomputer and local area network to speed up formation of beset box lamination tree model used in collision detection, decreasing collision detection processing amount, speeding up collision detection between beset box lamination tree model and interference detection speed between two beset boxes, speeding up complete collision detection process by using parallel collision detection process based on microcomputer and local area network for finalizing complete collision detection of said real time interactive operation.

Computer-implemented methods for real-time simulation of the application of one or more cosmetic products to a portion of the body of a user being imaged in an image-capture environment that is subject to uncertain lighting conditions. A real-time image of a portion of the user is captured and used to derive both image-capture environment parameters and user visual characteristics. Based on a desired look received from the user, a correspondence is extracted between the desired look and the pertinent portion of the user so that the desired look can be adapted to the image-capture environment parameters and the user's visual characteristics, and the adapted look is applied to an image of the user.

The invention discloses a fault positioning method for a power distribution network by combining simulation calculation and real-time monitoring, and belongs to the technical field of fault detection of the power distribution network. The method comprises the following steps of: extracting information of a target power distribution network from the conventional power distribution network geographic information system and a power distribution network energy management system through an organizational data analysis interface to automatically generate a real-time simulation calculation model of the target network; putting forward a virtual node-based fault positioning algorithm according to the simulation calculation model so as to solve functional relation between voltage amplitude of any node and a fault position parameter when a symmetric and asymmetric fault occurs at any point in the target network; and finally calculating an accurate position of the actual fault of the power distribution network by using a small amount of real-time data of voltage drop amplitude in a fault process. By using the fault positioning method for the power distribution network by combining the simulation calculation and the real-time monitoring, the state and the parameter of the network are accurately and effectively reflected when the fault occurs, the accuracy of the fault positioning is improved, and the method is suitable for various network structures and fault types.

The present invention discloses a multi-redundancy flight control computer real-time simulator and a system thereof. The technical solution of the invention mainly comprises a development monitoring host and a real-time simulation target machine. The developing monitoring host is used for establishing a multi-redundancy flight control computer model in Matlab/Simulink model design software, providing modeling support, executing graphic monitoring to the simulation operation process of established model, executing on-line modification to the parameter related with the operation of target processor code according to monitoring result, and storing the data of real-time simulation process. The real-time simulation target machine provides hardware support to the simulation operation of model established by the host. The invention also discloses the development monitoring host and the real-time simulation target machine. The technical scheme adopting the invention can provide environment support for the simulation development and operation of redundancy system.

The invention relates to a power grid on-line decision-stabilizing control system and a control method based on super real-time emulation. According to the power grid on-line decision-stabilizing control system, a data processing module is arranged in a dispatching center, is used for acquiring power grid state information, and transmits power grid operating data to an on-line decision-stabilizing system, the on-line decision-stabilizing system is arranged in the dispatching center and sends a stabilizing controlling decision and overall power grid information to a stabilizing controlling device, the stabilizing controlling device is locally mounted at a transformer substation or a power station, and a data conversion and communication port is connected between the on-line decision-stabilizing system and the stabilizing controlling device and inside the stabilizing controlling device, and is used for data communication between the on-line decision-stabilizing system and the stabilizing controlling device and inside the stabilizing controlling device. A power grid stabilizing decision and control are carried out in real time based on the super real-time emulation, a control decision matched with actual working conditions of a power grid is obtained, a prevention and control decision and an emergency control decision are carried out simultaneously in a system, stable control is carried out on the power grid, and the stability of the power grid is effectively improved.

The invention discloses a virtual robot and real robot integration based picking system. The virtual robot and real robot integration based picking system comprises a vision positioning system, a real robot and a virtual robot simulation system; a picking target is positioned through the vision positioning system and the real-time picking of the real robot is guided after the three-dimensional space coordinate information of the picking target is obtained; meanwhile the obtained three-dimensional space coordinate information is transmitted to the virtual robot simulation system through a data transmission line and the real-time simulation is performed on the picking process through a virtual robot. According to the virtual robot and real robot integration based picking system and method, a virtual simulation technology is combined with a machine vision technology, the robot under the virtual environment and the real robot are driven based on calculation data of a binocular vision system to perform the visual positioning and the picking behavior simultaneously, and accordingly the contrast of the accuracy of the vision positioning and the effectiveness validation of the picking behavior are implemented.

A Modeling, Design, Analysis, Simulation, and Evaluation (MDASE) aspects of gyrocompassing in relation to Far-Target Location (FTL) systems include a Gyrocompass Modeling and Simulation System (GMSS). The GMSS is a modularized software system which has four major components: the 6DOF Motion Simulator, the IMU Sensor Simulator, the Gyrocompass System and Calibration Process Simulator, the Gyrocompass System Evaluation and Analysis Module. Each module has one or two graphic user interfaces (GUIs) as user interfaces for simulation components selection and parameter setting. The modular architecture of GMSS makes it very flexible for programming and testing. And, the component-based software development technology greatly eases system extension and maintenance. The simulators can be used as either an off-line tool or as a real-time simulation tool. The realization of the GMSS can be based on any computer platforms, for it is written in high level language and tools and is portable. The stochastic signal analysis and sensor testing and modeling tools comprise a suite of generic statistical analysis software, including Allan Variance and PSD analysis tools, which are available to every GMSS module and greatly enhanced the system functionality.

The invention relates to an object deformation real-time simulation graphic processing technique, particularly a soft tissue deformation simulation method based on coupling of mesh-free Galerkin and mass spring, which comprises the following steps: in the pretreatment process, establishing a linear viscoelasticity biomechanical model for soft tissues; in the deformation computation process, dynamically partitioning a mesh-free region and a mass spring region according to the load carried by the soft tissues, establishing a transitional unit of the connection region between the mesh-free region and mass spring region, and constructing a transitional unit approximation displacement function, thereby implementing self-adapting coupling of a mesh-free Galerkin method and a mass spring method;and in the after-treatment process, outputting the state of the mass or node of each time step in the deformation process onto a screen, carrying out illumination rendering, and finally displaying the real-time deformation process of the soft tissue organ under stressed conditions on the screen, thereby implementing visualization effect of dynamic deformation. By utilizing the advantage of high efficiency in the mass spring method and the advantages of high precision and no need of mesh reconstruction in the mesh-free Galerkin method, the invention overcomes the defect that the Galerkin method is not suitable for solving a large-scale problem, thereby effectively lowering the complexity of computation in the soft tissue deformation simulation and enhancing the operation efficiency.

The invention discloses a method for performing real-time regulation and control and digital management on a water environment, which belongs to the technical fields of water environment real-time simulation and management. The method comprises the following steps of: acquiring data; establishing a monitoring database; identifying specific pollution areas and pollution sources by establishing a water environment model; and providing a control measure for the concentration and the total emission of point-source and non-point-source pollutants in the specific areas, so that the whole drainage basin can be guided to execute the best management plan, a system for performing real-time regulation and control and digital management on the water environment is established by combining with an informationization mode to regulate and control the water quality of the river in real time, systematic technique support can be provided for drainage basin 'source control and emission reduction', water environment comprehensive treatment and quantitative management, and the application prospect is wide.

Provided is an active power distribution network transient state real-time simulation multi-rate interface method based on an FPGA. Example basic information is read under an offline environment, and time te needed for calculation of each time step of an electrical system in the FPGA and time tc needed for calculation of each time step of a control system in the FPGA are calculated; a real-time simulation step size delta te of the electrical system is set according to the te; a real-time simulation step size delta tc of the control system is automatically determined according to a formula (please see the formula in the specification); correlation calculation parameters of elements and the example basic information are figured out and uploaded to an online simulation environment, computing resource allocation is carried out, and simulation time t is equal to zero; calculation of one time step and calculation of k time steps are carried out on the electrical system and the control system respectively, wherein t=t+delta tc, and t=t+delta te; the electrical system and the control system carry out multi-rate interface communication; whether the simulation time reaches simulation ending time is judged. The method is easy to achieve, solving time of the electrical system and the control system can be worked out in advance, proper real-time computing time steps are set, multi-rate interface parallel simulation is achieved, on the premise that simulation precision is guaranteed, solving time is greatly shortened, and the implementation difficulty of active power distribution network transient state real-time simulation is reduced.