313 results about "3d simulation" patented technology

A system, method and computer program product is provided for interactive user navigation in a real-time 3D simulation. An assembly builder permits a user to build customized physics-based assemblies for user navigation in a variety of virtual environments. These assemblies are stored in a library and are then accessed by a navigation run-time module that runs in conjunction with, or as a part of, a visual run-time application. The navigation run-time module receives high-level user goal requests via a simple and intuitive user interface, converts them into a series of tasks, and then selects the appropriate assembly or assemblies to perform each task. As a result, complex navigation may be achieved. Once selected, an assembly provides a physics-based eye-point model for user navigation. Collisions between the assembly and objects in the simulation are resolved using a real-time physics engine, thus ensuring smooth, cinematic-style eye-point modeling in addition to real-time control.

A 3D glass porous medium model for microscopic oil displacement is provided. The invention mainly solves the problem of the existing rock core model for microscopic oil displacement can not simultaneously assure high simulation degree and 3D visibility during the whole oil displacement process when conducting microscopic oil displacement experiment. The invention is characterized in that the model is formed by tightly bonding of at least three substrates made of glass material, a rock core planar pore channel (5) is respectively etched on the upper surface of a bottom substrate (12) and intermediate substrates (9, 10, 11), a plurality of throat channels (3) passing through the substrate are opened at a plurality of large apertures of the intermediate substrates (9, 10, 11), and a liquid injection channel (1) and a liquid outflow channel (2) are disposed on the model and respectively communicated with the large rock core planar pore channels (5) on the bottom substrate (12) and the first intermediate substrate (9). The invention can perform accurate 3D simulation of the rock core pore and assure high simulation degree during experiment, and the whole process is visible.

The invention relates to a printed circuit board (PCB) virtual manufacturing system of the electronic design automation (EDA) of the electronic product and a realization method thereof. The realization method comprises the following steps: all types of EDA design files can be extracted and converted to an EDA simulation file with the same format and data are input in a database; the PCB static (three-dimensional) 3D simulation and assembly 3D simulation are performed under the VC++ 6.0 environment; and finally PCB manufacturability analysis is performed to extract the simulation information and the judgement parameters of each element, the judgement parameters of each element are detected one by one according to the manufacturability design criteria in a rule database, and the PCB physical parameter error and assembly error of the EDA of the electronic product are displayed and filed instantly. By adopting the method of the invention, the relationship between the PCB design and the manufacture of the isolated island can be built and the visual basis can be provided for the data modification of the EDA optimal deign in the shortest time, thus the aim of optimizing the development cycle and the cost and maximizing the production efficiency can be achieved.

An exemplary three-dimensional (3D) simulation system accesses a two-dimensional (2D) video image captured by a video capture device and that depicts a bounded real-world scene and a real-world object present within the bounded real-world scene. The 3D simulation system accesses respective 3D models of the bounded real-world scene and the real-world object. Based on the 2D video image, the 3D simulation system tracks a spatial characteristic of the real-world object relative to the bounded real-world scene. Based on the tracked spatial characteristic of the real-world object and the 3D models of the bounded real-world scene and the real-world object, the 3D simulation system generates a 3D simulation of the bounded real-world scene within which the real-world object is simulated in accordance with the tracked spatial characteristic of the real-world object. Corresponding methods and systems are also disclosed.

The invention relates to a living body detection method, a device, a computer device and a storage medium. The method comprises obtaining a face image; detecting a face image to obtain a face region to be measured; analyzing the area of face to be measured, according to the result of analysis, judging the living face, the living face defense and the three-dimensional face mask defense, obtaining the judging result; outputting a decision result. As the color image and the infrared depth image are acquired, by using depth-learning model to detect human face in color image, combined with the analysis of the screen pixel texture of the face region to be measured, a Surf algorithm is adopted to determine whether the face region to be tested meets preset conditions, in order to improve the anti-attack ability of 3D simulation mask, video and general picture, effective defense mask, 3D simulation face, video non-live attack, and greatly improve the accuracy of face recognition.

The invention relates to an electronic whole set surface mounting technology (SMT) production line virtual manufacturing system and a realization method thereof. The realization method comprises the following steps: according to the assembly mode and the degree of automation, the process flow and parameters of the SMT production line are designed, a three-dimensional (3D) animation is used to display the process flow of the SMT production line; the electronic design automation (EDA) design file is read, the simulation programming of the key equipment of the mainstream machine in market is performed, then the data are input in an assembly database; the object oriented technology and the OpenGL technology are adopted to perform the 3D simulation of the working process of the SMT key equipment under the VC++ 6.0 environment; and manufacturability analysis can also be performed automatically. By adopting the method of the invention, the visual basis can be provided for the data modification of the program design of the SMT production line and the key equipment in the shortest time, thus the aims of short development cycle, low cost and high production efficiency can be achieved.

The invention relates to a multi-functional and one-stop type remote control design, the simulation system and method thereof wherein the system comprises: a first remote operation control station, a second remote operation control station, a system general control station, a high-dimensional dynamic simulation server, a rigid mechanical arm, a joint control computer, a virtual reality 3D simulation and video acquisition server, a flexible mechanical arm, another joint control computer, a visual system and a circular screen. The invention can work in four modes: mathematic simulation tests based on manual simulation manual remote control, simulation tests based on the manual remote operation control of mechanical arms on real ground, space robot capturing the inserted collision dynamics and control tests, and performance verification of flexible mechanical arms and the flexible parameter identifying tests. According to the invention, one-stop solutions can be provided to the design, simulation and test of remote operation control.

The invention provides a mobile terminal 3D virtual product display system. The 3D virtual product display system comprises a website configuration generating module, which is used for 3D modeling to build a three-dimensional virtual shopping mall by adopting U3D technology; a product management display module, which is used to receive product images and scene images uploaded by merchants, and is used for scanning and verifying of the images, and can be used for 3D simulation modeling according to the verified product images and the verified scene images, and can be used to display the images in the 3D virtual shopping mall for browsing of users; a user management module, which can be used to receive the basic information uploaded by the merchants, and can be used to generate the corresponding user accounts according to the basic information of the users, and can be used to accept the access of the users by using the Log-in ID, and can be connected to the 3D virtual shopping mall; an information exchange module, which can be used to provide a communication platform between the merchants and the users and between the users, and can be used to invite other on-line registered users to browse the products of the 3D virtual shopping mall according to the request instructions of the users; and a transaction payment module, which can be used to accept the on-line ordering and the on-line payment.

The invention discloses a geographic information data acquisition and display system, including a geographic information acquisition module, a man-machine operation module, a video data acquisition module, a data processing module, an expert evaluation module, a graphics rendering module, a regression calculating module, a prediction analyzing module, a central processor, a database file name automatic generation module, a 360-degree phantom imaging module, a simulation analyzing module, a virtual sensor, a transfer node module and a display. The simulation analyzing module repeatedly executes a simulation analyzing algorithm or a simulation analyzing method and transmits the feedback results to the virtual sensor. The virtual sensor receives the feedback results and automatically displays the data. According to the invention, a Beidou module is adopted to achieve data transmission through short messages, which greatly reduces the cost, ensures the real-time transmission of data, reduces the workload of the workers while achieving the 3D simulation of geographic information and comprehensive simulation and analysis of 3D three-dimensional geographic module so as to provides the reliable basis for corresponding measures.

The invention discloses a mining subsidence deformation prediction and forecast system. The system includes a data acquisition module, a man-machine interface module, a central processing unit, a data analysis processing module, a graphics rendering module, a regression calculation module, a prediction analysis module, an expert recommendation module, a simulation model construction module, a virtual sensor, a virtual actuator and a simulation analysis module; the virtual actuator executes analysis periodically so as to feed back a structure to the simulation analysis module; the simulation analysis module automatically extracts data and transmits the data to the virtual sensor; and the virtual sensor automatically displays results. With the mining subsidence deformation prediction and forecast system of the invention adopted, movement deformation data of the ground can be acquired in real time, data information can be transmitted in real time, and therefore, real-time monitoring on mining subsidence deformation data can be realized; based on the design of a 3D simulation model, workers, seeming to be personally on a scene, can observe the change of a working surface in a whole exploitation process, and therefore, the accuracy of prediction can be greatly improved; and mining parameter change simulation and mining subsidence deformation prediction and simulation can be carried out.

Systems and methods for fusing three-dimensional (3D) ground and airborne models for a geographical information system are described herein. A method embodiment includes aligning the ground and airborne models relative to one another, modifying three-dimensional mesh information in the ground and airborne models after the aligning to obtain modified ground and airborne models, merging the modified ground and airborne models to obtained a fused 3D model and storing the fused 3D model in memory for subsequent access by the geographical information system. A system embodiment includes a 3D model fuser configured to align the ground and airborne models relative to one another, modify three-dimensional mesh information in the ground and airborne models after the aligning to obtain modified ground and airborne models, and merge the modified ground and airborne models to obtained a fused 3D model, and a storage device that stores the fused 3D model for subsequent access by the geographical information system.

A method for modeling bond wires in an IC package for predicting noise effects generated by electromagnetic coupling in complex bond wire configurations. A look-up table of equivalent LC circuit models for the bond wires is generated that accurately predicts the effects of the bond wire circuitry of a signal transmission system. Switch and mirror techniques are applied to reduce the bond wire configurations necessary to simulate. The method includes: setting parameters related to the IC package layout of groups of bond wires; sub-dividing each group of bond wires into regions, each including a portion of the bond wire or its corresponding pad, and generating dissection planes for the regions consisting of the bond wires; performing a 3D simulation on the regions consisting of the corresponding pads, and a 2D simulation for each dissection plane; constructing equivalent circuit models for groups of bond wires and corresponding pads based on the 3D and 2D simulations results; inputting the equivalent circuit models into a circuit simulator to measure the noise effects; and modifying the layout geometry to meet noise targets.

The invention discloses a mine gas concentration trend warning system based on a 3D simulation platform. Based on the analysis and summarization of actual data in mine monitoring, an interval-valued fuzzy set evaluation analysis model and a gas emission trend prediction model based on the index of attitude are established by conducting stratification analysis and vertical and horizontal analysis on sample data collected in different durations such as the gas density and emission amount of underground monitoring points, the underground gas density is predicted 5-10 minutes earlier, and level warning of the mine gas threat situation is achieved; automatic underground simulation modeling is achieved by developing a 3D engine and an automatic modeling system for mine stereoscopic models, and the display result is more visual and convenient through 3D visualization of the underground coal mine environment. The mine gas concentration trend warning system is combined with a ventilation system and an extraction system in coal mining industry automation and can achieve visual monitoring and management of underground gas and carbon monoxide conditions, and real-time monitoring of the site of underground work, automatic alarming of abnormal conditions and ultralimit alarming of gas and the like are achieved.

The invention provides a device fault display method and device, a storage medium, a device and a server. The device fault display method comprises a receiving step and a display step. At the receiving step, device fault information is received. And at the display step, according to a pre-stored AR model of a device corresponding to the device fault information, an AR model of a device corresponding to the received device fault information is displayed by a pair of AR glasses. According to the invention, the augmented reality technology of the AR glasses is applied to the device fault detection, so that the user is able to sense the operation 3D simulation effect of the device visually; a visual perception experience is provided when a fault occurs; a fault occurrence site of a device canbe watched visually, so that the repairing and routine maintenance become convenient; and the good user experience is provided.

A computer 8 stores a response function 21 defining relation between the structure of a building and response 3 of the building to an environmental change. A 3-dimensional (3D) simulation image Is1 of the building is computed based on design values 11 of the building structure. The response 3 is computed by substituting the design values 11 in the response function 21, and a 3D simulation image Is3 of the response 3 is computed. The two 3D simulation images Is1 and Is3 are superposed so as to produce a superposed 3D simulation image Is. With comparison the 3D images Is1 and Is, i.e., images before and after the change, the response 3 to the change is visualized and analyzed as performance of the building. Preferably, the response 3 is expressed as a function of both the structure and equipment installed therein, and the response 3 of the building is computed based on the structural design values 11 and equipment design values 12. More preferably, the response 3 is expressed as a function of the structure and the equipment and/or indoor goods, and the response 3 of the building is computed based on the structural design values 11 and equipment design values 12 and indoor goods attributes 13.

The present invention discloses a simulation teaching system of vocational education, including a man-machine operation module, a theory teaching module, a theory testing module, a 3D simulation teaching evaluation module, a video acquisition module, a human expert assessment and guidance module, a comprehensive evaluation module, a hard question assembling module, a hard question solving module, and a CPU. The invention realizes 3D input of teaching materials, enabling the students have a realistic sense of being personally on the scene, greatly improving their interest in study, and improving the efficiency of learning. The establishment of simulated three-dimensional training scenes provides a virtual training environment for students and realizes the 3D simulation training test. As the whole simulated training process is recorded through a camera, evaluation can be made by teachers on different students' practical situation, so the output for guidance and daily tasks can be more targeted. In addition, hard questions arising in students' learning can be assembled and answered, therefore, increasing the efficiency of vocation education.

The invention provides a three-dimensional (3D) simulation amblyopia therapeutic apparatus, which comprises a shell, a 3D display screen, a light valve ocular lens, a synchronous signal controller and a computer device, wherein the 3D display screen is positioned inside the shell; the light valve ocular lens comprises a left ocular lens and a right ocular lens which are embedded into the shell and are opposite to the central position of the display screen; the synchronous signal controller is positioned inside the shell and is electrically connected with the left ocular lens and the right ocular lens; and the computer device is positioned inside the shell, is electrically connected with the 3D display screen and the synchronous signal controller and is used for opening and closing the left ocular lens and the right ocular lens alternately through the synchronous signal controller, controlling the 3D display screen to display 3D sighting targets of various movement tracks and controlling the 3D sighting targets to perform one or more actions of lens outgoing, lens ingoing, magnification, contraction, flicker and movement. By the 3D simulation amblyopia therapeutic apparatus, musculus ocularis and crystals of lookers can be moved and regulated fully, and amblyopia can be treated.

The invention provides a three-dimensional shopping mall system used for an electronic transaction. The system comprises an automatic 3D website framework generating module, a scene and commodity 3D simulation modeling module, a virtual shopping mall interactive 3D roaming module, a merchant and commodity displaying module, an information broadcasting and interacting module, a commodity inquiring module, a dynamic management module, an online payment module and polymorphic simulation advertisements. The system is a comprehensive network stereo shopping mall with online shopping, commerce displaying, electronic payment, information publishing and promotion and the like integrated. According to the system, three-dimensional environment simulation, a stereo visual spatial structure, 'real' counter arrangement and 'real person' selling are achieved, and a three-dimensional online salesperson can be set in a shop by a merchant so that a shopper can trigger the online salesperson to directly interact with the merchant online. Meanwhile, the system is convenient to operate and use, and the merchant can arrange a scene as needed with a liquid crystal writing pen or a mouse and become a merchant in the system to conduct transactions under the guiding of the system.

The invention discloses an operation maintenance and repair management system with 3D digitalization for transmission lines, which is transmission line information management software. Problems in power facilities and job site management can be solved in one stop through the development management and control platforms such as UAV, mobile Internet, GIS technology, and 3D technology. The system uses spatial information technology and 3D visualization technology to construct a ''digital grid'' that can control the operation information of the grid in an intuitive and real-time manner and managethe job site. Under the guidance of the flight coordinates of a ''3D simulation working system'', by using UAVs to patrol, the difficulty of periodic patrol of transmission lines in mountainous areasand medium or longer transmission lines can be solved. According to a management control platform of ''PC management system + mobile patrol APP system'', managers can accurately manage the affairs ofthe job site, and upload data information at any time through a mobile APP terminal to report the results. In addition, the operation maintenance and repair management system with 3D digitalization for transmission lines of the invention can effectively solve the problems of information interaction, positioning and navigation, remote management, remote technical support, and emergency processing.

The invention relates to a virtual prototype system of a chip mounter and an implementation method thereof. The virtual prototype system comprises an analog programming module, a 3D simulation module of the chip mounter, a chip-mounting program optimization module and a mounting database module. The implementation method comprises the following steps: carrying out analog programming on the type of the chip mounter, reading-in an EDA (electronic design automation) design file, automatically generating a mounting sequence program file, and inputting data into a mounting database; in a VC++6.0 environment, automatically carrying out 3D mechanism assembly and 3D simulation according to the type of the chip mounter by adopting an object oriented technology (OOT) and an OpenGL (open graphics library) technology; and finally generating an optimization program through design. By means of the virtual prototype system and the implementation method thereof, intuitive basis can be provided for data modification in the optimization program design of the chip mounter within the shortest time, thus achieving the purposes of optimal development cycle and cost and highest production efficiency.

The invention provides a remote control system for electrical appliances. The system comprises a client system applied to a handheld device and a back-end system applied to a host. The handheld device is connected with the host through a network. The host is connected with a controller. The controller is connected with a plurality of electrical appliances. Different monitored 3D (three-dimensional) scenes and preset associations between various control instructions and 3D simulations are stored in the host. The client system downloads the 3D simulations from the host through the network, selects the electrical appliances to be controlled from the simulations and issues the control instructions to the electrical appliances. The control instructions are transmitted to the host through the network. The back-end system in the host determines the electrical appliances associated with the control instructions according to the stored associations, and controls the associated electrical appliances to execute corresponding operations through a controller. The invention further provides a remote control method for electrical appliances.