272 results about "Modelling software" patented technology

The invention discloses a mutually translating system of sign language and speech, a gesture image collecting module 101 is used for collecting the video data of gestures, an input image preprocessing module 102 is used for image preprocessing, an image characteristic extracting module 103 is adopted for image characteristic extraction of the video data after image preprocessing and then outputs 56-dimension characteristic vectors, the 56-dimension characteristic vectors are used for constructing a sign language model 104, a continuous and dynamic sign language recognizing module 105 is used for recognizing the sign language model 104, and recognition results are output and translated into Chinese speech through a Chinese sounding module 106; voice signals collected by a voice signal collecting device are input in a speech recognition programming interface of Microsoft Speech SDK 5.1 and converted into characters to be output; three-dimensional models and three-dimensional animation are established through three-dimensional modeling software; the information of the three-dimensional models and the three-dimensional animation is output into .x formatted files through a Panda plug-in; and DirectX 3D is utilized to load the .x formatted three-dimensional models and the three-dimensional animation and then output sign language animation.

The invention provides a method for three-dimensional (3D) printing of a restoring implant by bony articular surface reconstruction. First three-dimensional reconstruction of a bone articular model is performed, and then virtual restoration reconstruction of bony articular reconstruction, reversal design of a bone articular defect area restoring implant and 3D printing forming of a bone articular defect restoring implant are performed. Modeling software is utilized to copy a normal side bone articular three-dimensional model to an affected side in a sagittal plane symmetry mode, so as to obtain a complete structure reference model before the occurrence of fracture of the affected side; 3D printing pro-processing software is utilized to support and generate the model, a corresponding forming material and a quick forming process are selected to perform 3D printing, a support structure of the implant is further removed, and finally an individual bone articular reconstruction restoring implant is obtained. The individual reversal design is performed according to the symmetry morphological structure of the human body, the bony articular surface reconstruction defect restoring implant is quickly formed by combination with a 3D printing technology, not only can a bone articular defect restoring reconstruction be greatly improved, but also the design and manufacturing efficiency of the implant is effectively improved, the cost is reduced, and customized design and individual-based treatment are performed.

The invention discloses a multi-dimensional curved glass curtain wall designing, processing and mounting method based on BIM technology, and belongs to the technical field of glass curtain wall construction. The method comprises the following steps: selecting modeling software; modeling software being mainly Rhino 3D modeling software, and in addition, adding a series of auxiliary equipment and software plug-ins, namely a tower type workstation, a three-dimensional laser scanner, a BIM lofting robot and avisworks and Grasshopper parameterized plug-ins on the basis of Rhino 5.0 software. According to the invention, through using the BIM technology, the problems that grid division and block division of a multi-curved-surface glass curtain wall are difficult to coordinate and unify, technicalparameters of unit glass plates are complex, machining is difficult, and the period is long are solved. The installation collision problem of a building structure and a keel is solved, the coordination problem of the keel and a glass curtain wall is solved, the time for deepening design and material processing is shortened, the construction efficiency is improved, rework caused by some collisionand discordance problems is avoided, the rejection rate of material processing is greatly reduced, and the construction cost is reduced.

The invention discloses a navigation system based on multi-sensor data fusion. The navigation system comprises a map building module, a positioning module, a log module and a path planning module. The map building module manually generates a raster map through environment modeling software by measuring a work site in combination with an architectural drawing. The positioning module measures the relative position of a robot and the environment through a laser scanning sensor, works out the distance between the robot and a wall, obtains the world coordinates of the robot through conversion of coordinates and achieves the positioning function. The log module fuses log data and data measured by laser scanning to form navigation data flow. The data measured by the sensor are comprehensively analyzed through a fusion algorithm, and the navigation task is finished through map building, automatic positioning and path planning. The navigation system is provided with a relatively complete information obtaining channel, information redundancy and contradiction are effectively avoided through a unique information processing method, and real-time performance and accuracy are improved obviously.

The invention relates to an embedded VxWorks based satellite attitude and orbit control system fault simulation system and method, which adopts a host computer and a target machine technology to realize a single machine model and a failure mode. The method comprises the following steps. A fault simulation host computer runs the Matlab modeling software, establishes a fault model based on Simulink, and generates a target application under the VxWorks real-time operating system under. A fault simulation target machine, connected with the fault simulation host computer through a network, runs the VxWorks real-time operating system and the target application for fault simulation. A fault injection and instruction control machine, connected with the fault simulation target machine and a satellite mounted single-mode machine respectively for transmitting the failure mode instruction of the single-mode machine to realize the switching between the single-mode simulation serial port of the fault simulation target machine and the real single-mode serial port of the satellite mounted single-mode machine. The system and the method of the invention can carry out fault diagnosis and system reconfiguration tests to improve the fault-tolerant ability of the single-machine hardware and the attitude track working in the failure mode of the satellite attitude control system so as to ensure the safety of the satellite.

Described is a dynamic emergency exit sign comprising one or more pictograms and at least one light source for accentuating one or more of the one or more pictograms either singly or in combination, wherein at least one light source is controlled by signals from evacuation computer modelling software to assist occupants egress in emergency or other critical situations.

The invention discloses a health evaluation method for eutrophic lakes, which comprises the following steps of: 1, according to the requirements of lake management, starting with an integral river basin, and determining a comprehensive evaluation index system containing the natural attribute for maintaining the life health of the eutrophic lakes and the social attribute of the lakes for satisfying sustainable development demands of human society; 2, establishing an evaluation model including a data entry and processing calculation module, a single factor evaluation calculation module and a comprehensive evaluation calculation module based on the multifactor comprehensive principle and the fuzzy relation synthesis principle according to the comprehensive evaluation index system established in the step 1; and 3, entering basic data to the evaluation model, and performing the health evaluation of the lakes by a calculation result outputted by the evaluation model. By the method, the health condition of the eutrophic lakes can be determined quickly, model software has the advantages of visual result expression, convenience for application and the like, and an effective technical management tool can be provided for the lake management.

The invention discloses a method for determining full-field-of-view apparent spectral radiance of a satellite-borne optical remote sensor. The method comprises the steps that firstly, an optical remote sensing satellite observation model and a scene are simulated, a satellite remote sensor model, an observation object, a satellite orbit and an attitude parameter are set, and the scene is restrained; secondly, an optical remote sensing satellite full-field-of-view observation parameter is calculated; finally, the optical remote sensing satellite full-field-of-view apparent spectral radiance is determined. According to the method, determination of the apparent spectral radiance received by the remote sensor is based on a radiation transfer theory, and simulation is conducted on the whole radiation transfer link including the earth, a ground object target, the background characteristics, the atmospheric conditions and the satellite-borne optical remote sensor according to the operating characteristics of a satellite platform and the remote sensor; the apparent spectral radiance received by the view field positions corresponding to pixels at different positions of the focal plane of the remote sensor is determined according to the pixels one by one through radiation transfer model software.

The invention provides a testable digital twinning body modeling method for an intelligent production line, and the method comprises the steps: firstly building a three-dimensional model of equipmentin the intelligent production line through digitalized modeling software, and importing the three-dimensional model into digitalized production line simulation software to obtain an intelligent virtual production line; secondly, planning motion paths of the equipment, simulating the intelligent virtual production line to obtain simulation beats until all the motion paths are traversed, and exporting the motion path with the smallest simulation beat to construct an intelligent physical production line which is the same as the intelligent virtual production line; and finally, setting a PLC control logic scheme according to the simulation process of the intelligent virtual production line so as to drive equipment of the intelligent virtual production line to perform production action simulation, so that the production actions of the intelligent physical production line and the intelligent virtual production line are kept consistent, and the construction of the testable digital twinning body of the intelligent production line is completed. Key information and operation data of the intelligent physical production line can be reflected in real time by operating the intelligent virtual production line, the production line building and debugging time is shortened, the project period is shortened, and the project cost is reduced.

The invention relates to an ionosphere hybrid modeling method in a short-wave ray tracing technique. The method comprises the following eight steps conducted through an input module, an IRI module, a QPS module and a ray tracing module: 1. inputting initial parameters such as testing time, working frequency, transmitter coordinates, receiver coordinates, antenna elevation range and the like; 2. figuring out reflection midpoint position, geocentric angle, great-circle distance and azimuth angle according to the transmitter coordinates and the receiver coordinates; 3. calculating the relevant parameters of an E layer and an F2 layer at a radio reflection midpoint at the testing time by using IRI model software; 4. transmitting the parameters of each layer figured out by an IRI model to a QPS model and using the parameters as input parameters to establish the multilayer quasi-parabolic plasma frequency distribution of a reflection space; 5. using the multilayer quasi-parabolic plasma frequency distribution of the reflection space and taking a group path as an independent variable to gradually solve a ray tracing equations set by starting from the transmitter position to obtain a group path simulation value of radio waves from the transmitter to the receiver; 6. conducting ray tracing calculation under the IRI model plasma frequency distribution to obtain a radio wave group path simulation value under the IRI model; 7. conducting a test to obtain an actually measured radio wave group path; and 8. comparing the simulation value with the actually measured value to verify the validity of the hybrid modeling method.

The invention provides a finite element modeling method for establishing a defective material model. The finite element modeling method comprises the following steps: establishing a two-dimensional or three-dimensional material model with great numbers of randomly distributed pores or cracks by virtue of combination of mathematical software, modeling software, finite element analysis software and the like: editing codes in the mathematical software to establish a data model of the material; carrying out defect treatment in the modeling software; and carrying out analog computation and result analysis in the finite element analysis software. According to the finite element modeling method, the problem that the material model with randomly distributed defects is difficultly established in the finite element analysis software is solved; by simplifying the great numbers of defects in the material, editing a reasonable script file and establishing interfaces among the software, the material model with great numbers of defects is introduced into the finite element analysis software to be subjected to analog computation, thereby facilitating the mastering and the use of relevant researchers.

A system for detecting wear or failure of a genset coupling of a genset power system is provided. The system includes a vibration sensor for measuring vibrations, and an additional sensor for measuring an operating condition. A controller is configured to process operating condition data from the additional sensor using a modeling software to generate simulated data. The controller applies time domain information of at least one of the simulated data and vibration sensor data to the modeling software using a machine learning algorithm, and perform a comparison to identify wear or failure of the coupling, wherein, when performing the comparison, the controller compares at least one of: time domain information of the vibration sensor data to time domain information of the simulated data or frequency domain information of the vibration sensor data to frequency domain information of the simulated data, to identify wear or failure of the coupling.

A GPS receiver comprises a crystal oscillator with a manufacturer's characteristic curve, a GPS radio, a TCO temperature sensor, and a GPS receiver software. The crystal oscillator serves as a local reference oscillator for the GPS radio. The GPS receiver software instructs the GPS radio to search radio spectrum for GPS satellite transmissions. Once the combination locks onto a minimum number of GPS satellites and produces a user position fix, the precise crystal oscillator frequency can be measured and associated with a temperature reading from the TCO to software-compensate the local oscillator in later cold-start frequency searches. A “flat” SCXO model is piecemeal upgraded with individual calibrations as they are collected over the life of the GPS receiver. During manufacturing of the GPS receiver such flat-SCXO model begins as a device characteristic curve supplied by the crystal manufacturer.

The invention discloses an aerial photography and BIM (Building Information Modeling) combination-based earthwork project amount calculation method. The method comprises the following steps of (1) performing original image information acquisition by utilizing aerial photography of an unmanned aerial vehicle; (2) converting the original image into a point cloud data model with textures through surveying and mapping post-processing software; (3) importing the point cloud data into third-party processing software for conversion processing; (4) importing the converted data file into modeling software to construct an original terrain model; and (5) establishing a new terrain plane or terrain model on the basis of the original terrain model through modeling software; (6) extracting an engineering quantity difference value between the new terrain and the original terrain. According to the invention, based on a mode of combining the aerial photography technology and the BIM technology, the unmanned aerial vehicle is utilized to obtain the original terrain data, the original terrain data is processed through the reverse modeling technology, and the BIM software is utilized to obtain the three-dimensional model, so that not only is the measurement time saved, but also the modeling efficiency is improved, and meanwhile, the data precision is ensured.

The invention discloses an analysis method applicable to a diversified BIM modeling software interface. The method includes the following steps that template data is acquired, an EXCEL file is opened, engineering major classification names, group names, display name information and relation numbers are obtained, and a DATASET is returned; the template data is processed, according to the DATASET, relation number fields are analyzed to obtain engineering group conditions and the hierarchical relation of groups according to the Huffman coding, and a dictionary dataset is generated; a Revit software customized interface is generated, that is, the dictionary dataset is traversed when a system runs, components are selected, and a final operation interface is generated. By means of the analysis method applicable to the diversified BIM modeling software interface, industrial design personnel are guided to quickly and correctly construct a BIM model, the defects that BIM model building is inconvenient and mistaken operations are likely to happen in the engineering industries like tunnel engineering and rail traffic engineering is overcome.

The invention discloses a positive sequence and negative sequence combination-based three-dimensional process model generation method in the field of three-dimensional digitalization process design. The positive sequence and negative sequence combination-based three-dimensional process model generation method comprises the following steps: firstly reading a design model and establishing a blank model; building part process information and a process framework flow, then, establishing process models of part process framework nodes, performing negative sequence establishment on all process models for operating parts to be changed in all stages, and finally, completing the establishment on all the process models. According to the positive sequence and negative sequence combination-based three-dimensional process model generation method disclosed by the invention, concurrent working of process design and support for collaborative design are realized, and the flow and the efficiency of the three-dimensional process design can be improved; in a three-dimensional process model generation process, by adopting a method that the positive sequence man-machine interaction design of the framework node process models and the automatic negative sequence generation of small-process node process models are combined, all kinds of modeling software are supported, and the generation efficiency of the process models is improved.

The invention provides an intelligent teaching system and method based on a building information model, and the system is built in a mode of hybrid cloud or private cloud, and comprises a teaching management system, a course making system, and a practical operation evaluation system. An administrator inputs teacher information in the teaching management system, and teachers input planned semesterteaching courses or purchase courses matched with the system in the course making system; teachers can make corresponding knowledge point after-class exercises in the course making system; based on the BIM model software, a BIM model practical operation question is obtained; meanwhile, a teacher inputs student and class information related to a given course; each student has an account and a password, the student logs in the teaching management system according to a course process to learn corresponding contents, can check corresponding videos, BIM models and drawing information in the learning process, and can perform after-class exercise training, participate in a course test and check scores after completion; and the practical operation evaluation system is logged in to train the BIM practical operation questions contained in the course, and the score is checked after the training is completed.

The invention discloses a method for calculating the performance evaluation index of sponge city based on the measured value of the plot. Firstly, the site vertical arrangement, the sponge facility arrangement and the rainwater control flow field inspection are carried out, and the concentration of the total suspended solids of the initial and later rainwater runoff and the actual soil permeability parameters are obtained through the on-site monitoring and the actual data collection. Rezoning catchment zones; the topological structure model between catchment area, sponge facility and drainagenode is established, and the effective catchment area, ineffective catchment area, permeability ratio, initial runoff total suspended solids concentration, later runoff total suspended solids concentration and soil permeability parameters are substituted into the rainfall-flood model software. The operation model obtains the annual runoff control quantity and the facility annual total suspended matter removal rate, and then calculates the annual runoff total amount control rate and the annual total suspended matter removal rate. The invention can ensure the accurate evaluation of the performance evaluation index of the land sponge city, and is beneficial to the improvement of the land sponge city.

The invention relates to a method for designing a rainwater treatment and utilization facility. The method comprises site selection of the rainwater treatment and utilization facility, selection of a facility type and calculation of a facility volume, wherein the facility volume WQV (namely water quality volume in the field terms) is calculated through the following five specific steps of: 1, taking a main parameter value; 2, substituting the parameter value into SWMM model software; 3, obtaining an optimal designed rainfall table and determining a range of optimal designed rainfall; 4, obtaining an accurate value of the optimal designed rainfall according to years of data and control targets; and 5, calculating the volume of the rainwater treatment and utilization facility through a WQV formula. The method designs and constructs the rainwater treatment and utilization facility for rainwater collection and utilization on the premise of controlling the pollution by using the initial runoff control rainfall as a main control factor during runoff pollution control in the prior art.

An embodiment of the invention relates to a three-dimensional stretching modeling method and device and solves a problem that modeling methods of a majority of modeling software are comparatively complex in the prior art. The method includes determining the shapes of a basic two-dimensional image input by a user and the relative position of the two-dimensional image in a three-dimensional model to be established; determining a plurality of vertexes of a triangular sheet according to the shape of the three-dimensional model to be established, the shape of the basic two-dimensional image and two-dimensional data points constituting outline of the basic two-dimensional image; connecting the vertexes to be connected among all the vertexes to form a plurality of triangular sheets, so that the three-dimensional model is established. By adopting the three-dimensional stretching modeling method, the required three-dimensional model can be established with the single basic two-dimensional image and does not need to be formed by the combination of basic three-dimensional models preset in software. Therefore, the implementation method for three-dimensional stretching modeling becomes simple.

The invention discloses a building construction progress management platform based on the BIM-IFC technology. The platform comprises a work station (1), a client side (2), a network server (3) and accessory equipment (4). The network server is connected to a router (5), and the work station, the client side and the accessory equipment are networked through the router (5). The accessory equipment comprises a GIS (401) and laser scanning equipment (402), BIM modeling software (6) is arranged in the client side, a building construction progress management platform body (101) based on the IFC standard is arranged in the work station, a 3D BIM file model (601) is arranged in the BIM modeling software (6) of the client side (2), and an IFC file reading engine (102) is arranged in the work station (1). According to the building construction progress management platform based on the BIM-IFC technology, relevant component information is integrated through the 3D BIM file model, and the engineering construction process can be visually and accurately simulated.

The invention provides a high-voltage MOS transistor circuit simulation macro model, which belongs to the technical field of integrated circuit. The invention comprises a MOS transistor simulation model, an n channel JFET simulation model and a diode simulation model. The n channel JFET is connected in series in a drain electrode of the MOS transistor; the diode is connected in series between a source electrode and grid electrode of the MOS transistor. The invention has clear physic significance and its features can vary along the changes in parameter. Therefore, the invention can be supported and applied in all ordinary circuit simulator, EDA software and model software of the industry. Besides, the invention has the advantages of convenient and express extraction as well as accurate and fast simulation.

The invention discloses an IEC 61850 general modeling method and belongs to the technical field of electric power automation. The IEC 61850 general modeling method is used for solving the problem that an existing modeling method for a specific device can not be applied to modeling of other devices and the problem that the existing modeling software can not meet the new modeling requirement. According to the IEC 61850 general modeling method, as a modeling rule, a data rule and an abstract modeling port are designed, the modeling port is separated from the data so as to achieve configurable general modeling oriented to the rules. By the adoption of the IEC 61850 general modeling method, repeated development of modeling software oriented to a specific device is avoided, cost is reduced, the new modeling requirement can be rapidly met, product quality and engineering level are improved and unifying of modeling and popularization of the IEC 61850 technology are facilitated.

The invention discloses a chute segment conflict and optimal arrangement method based on a BIM technology. The chute segment conflict and optimal arrangement method comprises the following steps: creating a BIM chute segment model and a BIM segment steel bar model by using Autodest Revit modeling software; exporting the BIM chute segment model and the BIM segment steel bar model into Fuzor software, and installing a design drawing for integration; conducting soft collision conflict check on the integrated BIM sliding groove segment model and the integrated BIM segment steel bar model; and according to a result of the soft collision conflict inspection, optimizing the arrangement of components in the BIM chute segment model and the BIM segment reinforcing steel bars. Through the applicationof the model, the subway tunnel segment structure and the sliding groove are drawn according to the scheme and the design drawing, then the steel bar BIM model is drawn, conflict check is conducted through the Fuzor software platform, the scheme is optimized in time, the scheme is more perfect, and implementation of the scheme is finer.