632 results about "Scale model" patented technology

When 3D viewing means become much more available and common, it will be very sad that the many great movies that exist today will be able to be viewed in 3D only through limited and partial software attempts to recreate the 3D info. Films today are not filmed in 3D due to various problems, and mainly since a normal stereo camera could be very problematic when filming modern films, since for example it does not behave properly when zooming in or out is used, and it can cause many problems when filming for example smaller scale models for some special effects. For example, a larger zoom requires a correspondingly larger distance between the lenses, so that for example if a car is photographed at a zoom factor of 1:10, the correct right-left disparity will be achieved only if the lenses move to an inter-ocular distance of for example 65 cm instead of the normal 6.5 cm. The present invention tries to solve the above problems by using a 3D camera which can automatically adjust in a way that solves the zoom problem, and provides a solution also for filming smaller models. The angle between the two lenses is preferably changed according to the distance and position of the object that is at the center of focus, and changing the zoom affects automatically both the distance between the lenses and their angle, since changing merely the distance without changing the convergence angle would cause the two cameras to see completely different parts of the image. The patent also shows that similar methods can be used for example for a much better stereoscopic telescope with or without a varying zoom factor. In addition, the patent shows various ways to generate efficiently a 3D knowledge of the surrounding space, which can be used also for example in robots for various purposes, and also describes a few possible improvements in 3d viewing.

The invention discloses a driver behavior identification method based on a multi-scale attention convolutional neural network. The method comprises the following steps: (1) shooting an image data setfor driver behavior identification; (2) carrying out data enhancement on the shot driver behavior data set and simultaneously bringing samples obtained by enhancement into training data; (3) constructing a neural network model which comprises three modules, namely a multi-scale convolution module, an attention module and a classification module; (4) training a multi-scale attention convolutional neural network; using a Pytorch open source tool i for building a network model, and using a random gradient descent method for optimizing network parameters; and (5) testing the multi-column convolutional neural network. According to the invention, the multi-scale model and the attention mechanism are introduced into the driver behavior identification task to extract the behavior fine-grained feature representation with the distinction degree, so that the driver behavior identification accuracy can be further improved.

The preferred embodiment of the instant invention preferably takes place in three stages. In the first stage, a determination is made as to which sands (or other reservoir bodies) are in fluid communication with the existing wells, and the disconnected sands are removed from the fine scale geological model. In the second stage, the transmissibilities in the fine scale model are upscaled to the course grid for direct use in the simulation. In the third stage the connected sands only are upscaled and a simulation is carried forward to the point when a new well is to be drilled. The pressure and saturation data are exported to combine with newly connected sands (reservoir bodies), and new pressure and saturation is calculated. The new values are exported in the simulation model and simulation run is continued.

The invention disclosed herein is remarkable in its simplicity and promises wide commercial application as the labor costs for construction become increasingly prohibitive. The extraordinary absence of nails, screws, bolts, welds or any other fastening device allows these barriers to compete with many conventional barrier systems, such as those employed for fencing, vehicular trailer beds, removable stages, and scale models or toys of all fabrications mentioned plus many more. In this age time is money and the erection speed this barrier system offers may well revolutionize conventional "post and beam" framing. The invention is specifically aimed at eccentric beam loading where barriers must be economically fabricated to withstand hurricane force winds, earthquake reactions, or liquid concrete pressure in a sub-rigid manner. The Fast-Form System will offer insurers building products that will protect their interests for any and all applications. When the barriers disclosed herein are utilized for concrete formwork, contractors will have a new option that embraces standard building products, with barrier fabrication accomplished in half the time of the systems that precede it.

A positioning system designed to provide a three dimensional location of an object. The system can include one or more multiple transmitters or electromagnetic beacons, software defined radio receivers with an associated processing unit and data acquisition system, and magnetic antennas. The system applies theoretical calculations, scale model testing, signal processing, and sensor data to operate.

The invention relates to hydromechanical device, in particular to a wind tunnel used for comprehensive climatic environment tests and aerodynamic tests of railway vehicles. The wind tunnel comprises a tunnel body. The tunnel body is an annular flow channel. A ventilation system used for generating air flow is arranged in the tunnel body. The tunnel body is further provided with an environmental simulation system and an aerodynamic simulation system. The environmental simulation system is used for controlling the weather conditions in the tunnel body. The aerodynamic simulation system is used for enabling the air flow to form a pneumatic flow field. By the adoption of the wind tunnel, the climatic environment tests of the whole real railway vehicle can be carried out, and the aerodynamic tests of a scale model of the railway vehicle can also be carried out. On the basis that the demands for the railway vehicle tests can be met, the wind tunnel can also be used for the related environment tests and the related aerodynamic tests in the fields such as the aerospace field, the automobile field and the construction field.

A one-pass picture-layer rate control (RC) method and system for controlling a video encoder: The bit allocation and determination of quantization parameter (QP) in this rate control method and system are based on a Rate-Quantization (R-Q) scale model. The R-Q model is a linear one, wherein the number of bits per picture is in reverse ratio of quantization scale for that picture. A conversion of exponential-based QP to linear-scaled QP is taken in the calculation of complexity model and determination of QP. The conversion is integer-based and is consistent with the quantization array defined in the H.264 standard.

New techniques are presented for detection methods employed in the control, automation and operation of scale Model railroad layouts that permit new types of capabilities to be incorporated into the railroad. The invention allows for the lowering of the cost of detection electronics by employing a redundant encoding of information in the transponder responses that are then used for detecting transponder location on the layout by using current sensors. The use of a complementary multiplex arrangement and algorithm allows a reduction in the detection electronics by virtue of the fact that most the conditioning electronics can be supplied in a single instance that is shared amongst the multiplexed current sensors.

The invention discloses a lightning effect test device for a dynamic airplane. A computer in the device is arranged outside a microwave dark room; a round turntable A, a round turntable B, an airplane scale model, a lightning generator, a spectrum recorder, a support platform and a camera are arranged in the microwave dark room; the camera is mounted on the support platform; the airplane scale model is mounted on the round turntable A; the spectrum recorder is mounted on or in the airplane scale model; and the lightning generator is mounted on the round turntable B. When the round turntable A and the round turntable B rotate relatively, various types of lightning analogue currents and electromagnetic waves generated by the lightning generator act on the airplane scale model; and when the lightning happens, the spectrum recorder records the lightning indirect effect, and the camera records the lightning direct effect. According to the invention, the process that the airplane in dynamic flying mode encounters lightning can be simulated in the limited space of the microwave dark room so that the tested data approaches to the real conditions better and the error is reduced.

Systems and methods are described for creating virtual models, primarily through actions taken in actual 3D physical space. For many applications, such systems are more natural to users and may provide a greater sense of reality than can be achieved by editing a virtual model at a computer display, which requires the use of manipulations of a 2D display to effect 3D changes. Actions are taken (markup is drawn or laid out, etc.) in a physical workspace. Such physical workspaces may in fact be identical to the space being modeled, small physical scale models of the space, or even a whiteboard or set of papers or objects which get mapped onto the space being modeled.

The invention disclosed herein is remarkable in its simplicity and promises wide commercial application as the labor costs for construction become increasingly prohibitive. The extraordinary absence of nails, screws, bolts, welds or any other fastening device allows these barriers to compete with many conventional barrier systems, such as those employed for fencing, vehicular trailer beds, removable stages, and scale models or toys of all fabrications mentioned plus many more. In this age time is money and the erection speed this barrier system offers may well revolutionize conventional "post and beam" framing. The invention is specifically aimed at eccentric beam loading where barriers must be economically fabricated to withstand hurricane force winds, earthquake reactions, or liquid concrete pressure in a sub-rigid manner. The Fast-Form System will offer insurers building products that will protect their interests for any and all applications. When the barriers disclosed herein are utilized for concrete formwork, contractors will have a new option that embraces standard building products, with barrier fabrication accomplished in half the time of the systems that precede it.

The invention relates to a multi-scale simulation method for solid oxide fuel cells, and is characterized in that the method conducts multi-scale simulation from the mesoscopic scale to the macro equipment scale for complex physical and chemical phenomenon, such as coupled heat calorie transmission, electrochemical reaction in the solid oxide fuel cells, etc. The invention further relates to an integration and co-simulation method of a multi-scale model. Because a modeling method provided by the invention adopts the modeling method by mechanism from the macro-scale based on the phenomenon, the model has the advantages of clear physical meaning, high accuracy and strong adaptability. A simulation method is adopted between the mesoscopic scale and the macro equipment scale based on molecules or molecular clusters, thereby compensating for a deficiency of traditional single scale simulation. Layered method and the method of different scales are combined to study the complex system, so as to be conducive to disclosing the nature of complex systems, such the solid oxide fuel cells and provide a novel means for studying complex the systems.

The invention discloses a text clustering multi-document automatic abstracting method and a system for improving a word vector model. The CBOW of the Hierachic Softmax belongs to the field of large-scale model training, and the CBOW of the Hierachic Softmax belongs to the field of large-scale model training. Based on the method, a TesorFlow deep learning framework is introduced into word vector model training; the problem of time efficiency of a large-scale training set is solved through streaming processing calculation, TF-IDF is introduced firstly during sentence vector representation, thenthe semantic similarity of a semantic unit to be extracted is calculated, weighting parameters are set for comprehensive consideration, and a semantic weighted sentence vector is generated; beneficialeffects are as follows. The advantages and disadvantages of semantics, deep learning and machine learning are comprehensively considered; density clustering and convolutional neural network algorithms are applied. Intelligent degree is high, according to the method, the statement with high relevancy with the central content can be quickly extracted to serve as the abstract of the text, various machine learning algorithms are applied to the automatic text abstract to achieve a better abstract effect, the method is possibly the main research direction in future in the field, and in addition, the system according to the invention supplies a tool for automatic extraction of a document abstract based on the method.

The invention provides a multifunctional three-dimensional model testing platform for a roadbed slope and underground engineering. The multifunctional three-dimensional model testing platform is composed of an underground groove body, a ground reaction wall, a ground groove body, a servo actuator, a loading plate, a middle separation plate, an underground water system and an artificial rainfall system, wherein the ground reaction wall is located at one end of the underground groove body; the ground groove body is mounted on the side wall of the underground groove body; the servo actuator is arranged between the ground reaction wall and the ground groove body; the underground water system is arranged in the ground groove; the artificial rainfall system and a shower nozzle are arranged above the ground groove body. The construction of the multifunctional three-dimensional model testing platform for the roadbed slope and the underground engineering can further improve an existing large-size foundation and slope model testing system, so as to provide a good testing platform for a large-scale model test of engineering projects including roadbed slope supporting structures, foundation treatment, tunnels, foundation pits and the like; the construction cost is reduced and the model testing efficiency is improved.

An image organizing system for organizing and retrieving images from an image repository residing on a mobile device is disclosed. The image organizing system includes a mobile computing device including an image repository. The mobile computing device is adapted to produce a small-scale model from an image in the image repository including an indicia of the image from which the small-scale model was produced. In one embodiment the small-scale model is then transmitted from the mobile computing device to a cloud computing platform including recognition software that produces a list of tags describing the image, which are then transmitted back to the mobile computing device. The tags then form an organization system. Alternatively, the image recognition software can reside on the mobile computing device, so that no cloud computing platform is required.

Embodiments of the present invention provide a system for estimating a location of a gas leak, based on machine learning from forward gas concentration data provided by an analog or scale model including a gas source. The system improves significantly over previous systems by providing high quality, physically accurate forward modeling data inexpensively. During operation, the system configures an aerosol source at a first location to emit a gaseous aerosol. The system then configures a laser source to illuminate the aerosol with a laser sheet. The system may then obtain an image of a reflection of the laser sheet from the aerosol. The system may then analyze the image to quantify a three-dimensional concentration distribution of the aerosol. The system may then estimate, based on solving an inverse problem and an observed second gas concentration, a second location of a second gas source.

The invention belongs to the field of hydraulic engineering simulation tests and particularly relates to a device and method used for river and lake relation experimental research and suitable for a river and lake intersection water system. The device used for river and lake relation experimental research and suitable for the river and lake intersection water system comprises a micro-scale river and lake model module, a model adjusting module and a river and lake relation measurement module. The device is specifically composed of a water and sand input port, a river channel micro-scale model, a lake micro-scale model, a lake opening gate, an electromagnetic water and sand separator, a lifting motor, a micro air pump, a roughness factor base pad, a ventilation hole, a spiral stirring pump, a water level gauge, a digital fluxmeter, a digital gauss meter and a surface magnetic distribution measuring instrument. According to the model test device, the invention further provides a method used for river and lake relation experimental research and suitable for the river and lake intersection water system. The method is suitable for an oversized dimension river and lake intersection water system prototype, quantitative physical analog simulation and river and lake relation space and time change measurement under the conditions of micro-scale three-dimensional space conditions.

The invention relates to the field of research on the physical properties of sandstone of low-permeability dense sandstone reservoir, and discloses a construction method of a dense sandstone multi-scale pore model and an application. The invention provides the construction method of a dense sandstone multi-scale pore model, which comprises the following steps: (1) developing a mercury injection experiment and establishing a rock sample capillary pressure curve; (2) establishing a three-dimensional digital core by using Micro-CT scanning; (3) determining the spatial position coordinates and geometric construction characteristic parameters of the pore and simplifying the pore into pore nodes; (4) determining the communication relation among the pore nodes according to the spatial position ofthe pore nodes; (5) distributing pore throat radius, establishing an initial pore model, and then fitting the initial pore model into a capillary pressure curve; and (6) adjusting pore throat parameters and pore parameters in the initial pore model according to the actually measured capillary pressure curve. The pore model disclosed by the invention is accurate and reliable.

The invention provides a complex composite material structure equivalent material performance multi-scale calculating method comprising the following steps: using a scale-separating method to separate the structure into macroscopic, microscomic and microscopic scales, and respectively building analysis models on each scale according to geometry characteristics of different scale models; converting the three-scale problem into two multi-scale problems: a macroscopic-microscomic multi-scale problem and a microscomic-microscopic multi-scale problem, analyzing the two multi-scale problems in sequence, and finally returning an equivalent modulus of the microscopic multiple-scale problem to the macroscopic multiple-scale problem. A conventional structure analysis method is low in calculating efficiency and poor in precision; the novel complex composite material structure equivalent material performance multi-scale calculating method can solve said problems, thus effectively improving composite material structure performance prediction efficiency and precision, and the novel method can be applied to composite material production, research and development guiding works; the complex composite material structure equivalent material performance multi-scale calculating method can be applied to aviation spaceflight field complex composite material structure design and analysis, and structure design thermal and mechanics analysis in other composite material engineering fields.

The invention discloses a computing method of model parameters in an icing wind tunnel experiment under a supercooled large droplet condition and aims at solving the problems that an existing parameter selecting method for a supercooled small droplet icing experiment does not function well if being applied to a supercooled large droplet icing experiment and that the real icing condition cannot be reflected by icing on a scale model of the airplane. The computing method of the model parameters in the icing wind tunnel experiment under the supercooled large droplet condition is capable of orderly giving the experimental parameters of a wind tunnel test section such as air velocity, average droplet grain diameter, air pressure, liquid water content, icing time and low supercooled water temperature corresponding to real icing flying conditions by use of a theoretical derivation and numerical computation method after determining the scale relation of the model and the real airplane. An aircraft icing wind tunnel experiment is performed according to the converted test parameters, and the experimental result and the real result are capable of meeting the similarity requirement on the major characteristics of the icing process. As a result, the computing method of the model parameters in the icing wind tunnel experiment under the supercooled large droplet condition is capable of obtaining the model parameters for the icing wind tunnel experiment; the corresponding parameters are capable of reflecting the real icing condition in the icing wind tunnel experiment.