30results about How to "Realistic simulation" patented technology

The invention relates to a phantom for simulating the ultrasound guided insertion of a needle in a blood vessel of a human body site. The phantom comprises: a skin mimicking layer (2), formed in a first material; —a tissue mimicking layer (3), formed in a second material and at least one artificial blood vessel (4a, 4b, 4c), formed in a third material, the first, second and third material being arranged to reproduce both the mechanical and the ultrasound properties of the corresponding parts of the human body site. Thanks to the invention, the phantom permits a realistic simulation of a human body site behavior.

The invention discloses a method for testing the influence of different carbon dioxide concentrations on growth of submerged plants, which is an ecological test method and belongs to the field of ecological test methods. A research station is established beside a natural lake, which collects water and bottom sediment in the lake as test raw materials and performs test research on the influence ofmultiple groups of different carbon dioxide concentrations on the growth of submerged plants in the condition of ensuring the same growth factors of the submerged plants. In the test, the submerged plants are cultivated with a specialized incubator. The increment of biomass is calculated finally, and the materials are convenient and quick to obtain; the influence of a genetic factor is avoided; the actual growing environment of the submerged plants can be really and reasonably stimulated; and the illumination and temperature conditions of the incubator can be full-manually controlled, thus being favorable for differential control on multiple environmental factors.

The invention discloses a stratum module mud invasion multifunctional physical simulation system. The stratum module mud invasion multifunctional physical simulation system includes a stratum module saturation device, a drilling mud preparation device and a mud invasion physical simulation device; the mud invasion physical simulation device comprises a simulation wellbore, fan-shaped invasion chambers and an invasion dynamic data acquisition device; the simulation wellbore is connected with a feeding bin and a pressurizing pump respectively; a stirring shaft and impellers are installed at the axis of the simulation wellbore; the stirring shaft is in transmission connection with a stirring motor; windows are formed in the simulation wellbore; fan-shaped stratum modules are installed in the fan-shaped invasion chambers; the fan-shaped invasion chambers are in sealed connection with the windows of the simulation wellbore; outlet ends of the fan-shaped invasion chambers are provided with leak-off flow measuring devices; and the dynamic data acquisition device is connected with the invasion chambers. The stratum module mud invasion multifunctional physical simulation system of the invention has the advantages of modularization, visualization, high simulation fidelity, high utilization rate, high precision, complete functions and the like. A multi-invasion chamber structure is adopted, so that comparison experiment design can be facilitated.

The invention discloses an optimal configuration method and system for an energy storage system in a virtual power plant based on a scene set. The optimal configuration method of the energy storage system comprises the following steps: constructing a virtual power plant model comprising a fan, a photovoltaic vehicle, an electric vehicle and the energy storage system; simulating uncertainty factorsin the virtual power plant through Monte Carlo sampling, and generating a combined output scene set; establishing an energy storage system capacity optimal configuration objective function considering the cost; and solving the optimal configuration model of the energy storage system in the virtual power plant through a differential evolution algorithm in combination with various constraint conditions in actual operation. The uncertainty of each distributed energy output in the virtual power plant is considered, and the energy storage system is optimally configured, so that the purpose of reducing the construction cost of the virtual power plant is achieved.

The invention discloses a measuring device for determining the invasion depth of mud filtrate. The measuring device comprises a simulation wellbore, an invasion chamber and a data collection device, wherein a window is formed in the simulation wellbore; a stratum module is arranged in the invasion chamber; the invasion chamber is tightly connected with the window of the simulation wellbore; the invasion chamber is provided with an electrode; the outlet end of the invasion chamber is provided with a leak-off flow measuring device; the data collection device comprises a data collection controller and a computer; the electrode is connected with the data collection controller; and the data collection controller is connected with the computer. The measuring device has the characteristics of being vivid and visual in simulation degree, high in accuracy, simple to operate and the like; the device is suitable for measurement of mud invasion experiments of the stratum module under the conditions of fresh water mud and salt water mud and research of influences on an electric logging response of a reservoir caused by mud invasion, provides experimental data for building a mud invasion correction model of the logging response of the reservoir, and is of great significance on improvement of domestic mud invasion research capability.

The method is applicable to the technical field of image processing and provides a fluid surface tension simulation method, terminal equipment and a storage medium. The method comprises the followingsteps: dividing fluid into discrete particles, and calculating dynamic parameters of the particles based on the smooth kernel, wherein particles in the fluid move according to the calculated dynamic parameters; according to the method and device for simulating the surface tension of the fluid, simulating the surface tension of the fluid, detecting the particles on the surface of the fluid, and obtaining the surface tension between the particles on the surface of the fluid based on the detected particles on the surface of the fluid. According to the invention, the precision of surface tension simulation in fluid simulation can be improved, so that fluid simulation is more real.

The method is applicable to the technical field of image processing and provides an interface bubble simulation method, terminal equipment and a storage medium. The method comprises the following steps of: according to the current position of the gas particle, searching liquid particles in a preset neighborhood of the gas particles; according to the relationship between the current position of theliquid particle in the preset neighborhood of the gas particle and the current position of the gas particle, determining whether the gas particles are foam particles; if it is determined that the gasparticles are foam particles, updating the position and speed of the foam particles in the gravity direction according to the real-time state parameters of the liquid particles closest to the foam particles; and updating the stress of the foam particles in other directions according to the established gas particle simulation model, recording the updated state parameters of the foam particles, andgenerating foam through real-time rendering according to the updated state parameters of the foam particles, so that the interface bubble simulation precision can be improved.

The invention discloses a radar clutter simulation method and electronic equipment, and the method comprises the steps: collecting original clutter data, carrying out the preprocessing, and obtaining and splitting a distance unit of the preprocessed clutter data; constructing an info-WaveGAN training model comprising a generator, a discriminator and a Q network; taking each split distance unit as a training sample to be input into an info-WaveGAN training model, and carrying out model training through the generator, the discriminator and the Q network in sequence; and creating a loss function, and performing optimization processing on parameters of the training model by circularly executing a loss function minimization operation to obtain optimized clutter data. According to the method, the model fitting capability is improved to generate more vivid clutters, the distribution type of the input radar clutters is ignored, the method can be applied to generation of radar clutters of any distribution type, and the universality of the method is improved.

The invention provides a prop using method, device and equipment in a virtual environment and a storage medium, and relates to the technical field of computer vision of artificial intelligence. The method comprises the steps: displaying a virtual environment interface of an application, wherein the virtual environment interface comprises a picture for observing a virtual environment at an observation view angle of a first virtual object; receiving a use instruction of the trap prop; and in response to a use instruction of the trap prop, transmitting a three-dimensional trap to an activity space of the virtual environment, wherein the three-dimensional trap is used for triggering n virtual flying objects to reduce virtual biological values of a second virtual object when the approaching distance of the second virtual object in the activity space is smaller than a threshold value, and n is a positive integer.

The invention discloses a mining tunnel simulation construction method considering red clay unloading influence. The mining tunnel simulation construction method comprises the following steps of building a soil body model used for building a double-side-wall pilot tunnel; specifying a tunnel position on the basis of the soil body model, generating a tunnel model, and determining an unloading influence area range; performing mesh generation on the model; simulating construction in the soil body model according to a tunnel structure, and excavating a soil body to complete tunnel construction; monitoring stress changes of red clay on the lower portion of the tunnel in real time in the soil body excavation process; calculating the red clay unloading expansion rate of soil body unloading causedby tunnel excavation; and analyzing the influence of red clay body unloading expansion on the tunnel structure and the surface environment around the tunnel in the tunnel excavation process. The method has the beneficial effects that the interaction of the soil body and the structure can be more practically simulated, reference is provided for tunnel excavation construction in the red clay area,and follow-up of subsequent treatment measures is facilitated.

The invention discloses a system for simulating an electronic sound effect of a fuel engine. The system for simulating the electronic sound effect of the fuel engine comprises a signal collection module, an engine state simulation module, a sound synthesis module and a sound amplifying module; the signal collection module is used for collecting an engine rotation speed signal percentage signal andan engine event state signal; an input end of the engine state simulation module is connected with an output end of the signal collection module; an output end of the engine state simulation module is connected with an input end of the sound synthesis module; and an output end of the sound synthesis module is connected with the sound amplifying module. According to the system for simulating the electronic sound effect of the fuel engine, vivid analog simulation can be carried out on engine sound effects of vehicles, aircraft and ships.

The invention belongs to the technical field of simulation methods, and specifically relates to an interactive virtual-reality simulation method for a backwash filter. The interactive virtual-realitysimulation method comprises the following steps: S1, modeling: establishing a three-dimensional model of the backwash filter; S2, loading: loading the filter model in Unity; and S3, interactive designing and motion simulation: 1) the virtual scene of normal-flow filtration: defining the trajectory of a fluid with an iTween plugin; controlling dominance and recessiveness of an arrow indicating thetrajectory of a filtered fluid through C# script programming; and controlling the starting and stopping time of filling of a filter element with a liquid through compiling of a time controller; and 2)the virtual scene of back washing: amplifying the local effect of a filter through small map functions; defining the trajectory of a backwash fluid with the iTween plugin; controlling the movement ofa valve element and a filter element with scripts; creating backwash water and impurities; and compiling the scripts, and controlling the process of simulation with an external device. The interactive virtual-reality simulation method provided by the invention can reflect the characteristics, morphology and layout of elements in an actual scene in a realistic, vivid and accurate way.

The invention discloses an asset investment simulating system, comprising a database, a data download module and an investment simulating module, wherein the database is used for storing the past investment financial events and the current financial investment information; the data download module is used for synchronously downloading the current financial investment information and storing the information in the database; the investment simulating module is used for adopting the investment data in the database to generate a virtual investment environment; and the investment simulating module comprises an environment setting module, a user setting module, an asset computing module, an investment selecting module and a trade processing module. After adopting the former method, the asset investment simulating system disclosed by the invention can randomly generate the investment environment according to the past and the current financial events, and has more real simulation because of the uncertainty of creation.

The invention relates to a single-component and multi-component incompressible fluid simulation method by using a deformation gradient, which comprises the following steps: calculating the volume variation of single-component or multi-component particles by using the deformation gradient, establishing an equation of a fluid incompressible condition based on the deformation gradient, and solving by using a relaxed Jacobian iteration method. According to the method, the incompressible solution of the multi-component fluid is realized, the real simulation effect of the multi-component fluid is realized, an artistic control scheme is provided, and the simulation efficiency and effect of the single-component fluid are comparable to the effect of an advanced method in the current industry.

The invention discloses a realistic fluid repetitive simulation method. The method aims at utilizing sample frames of video fluid to achieve a realistic repetitive simulation result. According to the method, firstly, physical drive data of sample frame fluid is calculated, by means of wavelet transform, a radio-frequency component of the drive data is acquired in a frequency domain space, then, in the process of fluid repetitive simulation, drive data in the LBM simulation process is enhanced through extracted high-frequency detail components, and the repetitive simulation result with the realistic details is obtained. The realistic fluid repetitive simulation method can be effectively applied to fluid reverse engineering studies and applications, repetitive simulation of fluid scene reality can be achieved, a realistic effect close to the appearance of the sample fluid is acquired, and the problem that existing fluid reality is in shortage of details is solved.

The invention belongs to an artificial simulation device and relates to a bloom-forming cyanobacteria wind power disturbance-based day and night vertical migration simulation device. The device comprises a support device, a culture device, an illumination simulation system, a wind emulation system and a control unit. The support device coats the culture device. Bloom-forming cyanobacteria are cultured in the culture device. The illumination simulation system and the wind emulation system are installed on the support device. The control unit is electrically connected to the illumination simulation system and the wind emulation system and is used for controlling starting and stopping of the illumination simulation system, illumination intensity of the illumination simulation system, starting and stopping of the wind emulation system and wind intensity of the wind emulation system. The bloom-forming cyanobacteria wind power disturbance-based day and night vertical migration simulation device is used as a device for simulation of wind power disturbance and illumination-caused influence on bloom-forming cyanobacteria and is suitable for scientific research.

The invention discloses an experimental facility for simulating the forming process of a mud cake. The experimental facility comprises a simulation shaft and invasion chambers; the simulation shaft is connected with a feeding bin and a pressurizing pump; a stirring shaft is arranged at the hole axis position of the simulation shaft; and the stirring shaft is in transmission connection with a stirring motor. Impellers are arranged on the stirring shaft, and windows are formed in the simulation shaft; stratum modules are arranged in the invasion chambers; the invasion chambers are connected to the windows of the simulation shaft in a sealing manner; and leak-off flow measuring devices are arranged at the outlet ends of the invasion chambers. According to the experimental facility, mud filtration experiments of different mud types, different mud pressures and different hydrodynamic conditions are achieved, and the favorable condition is created for researching the forming rule of the mud cake and evaluating the leak-off performance and the wall building property of mud, and the experimental facility is of great significance in optimizing the mud property and protecting reservoir production capacity.