769 results about "Design stage" patented technology

The invention relates to a dam safety intelligent monitoring and pre-warning system based on full life circle and a method thereof, and belongs to the intelligent monitoring and pre-warning field of hydraulic and hydro-power engineering safety. By taking the full life circle of a high arch dam as a main line, a three-dimensional digital technology as a foundation and a building information model as a core, a full dam information model (DIM) including an overall three-dimensional structure of high arch dam concrete and foundation and construction process information are established, and an intelligent technology is applied by an intelligent high arch dam construction information platform for quality management and dynamic analysis control based on DIM development, so that the high arch dam construction such as application of essential data in the design period, full-process monitoring in the construction period and all-around monitoring and safety assessment and pre-warning analysis evaluation in the operation and management period of the high arch dam is realized, refine management and control on the high arch dam are realized, a foundation is provided for the safety management of the high arch dam, and safe operation in the whole life circle of the high arch dam is guaranteed.

Provided is a device capable of generating test patterns even after the design stage. The area of a circuit which is included in the device and unnecessary during normal operation can be reduced. The device includes a first circuit and a second circuit. The second circuit includes a plurality of third circuits, a plurality of fourth circuits, and a fifth circuit and has a function of generating a signal for testing operation of the first circuit and a function of operating as part of the first circuit. The fourth circuit has a function of storing a first data and a function of storing a second data. The fifth circuit has a function of writing the first data to the plurality of fourth circuits, a function of writing the second data to the plurality of fourth circuits, and a function of reading the second data from the plurality of fourth circuits.

Provided is a device capable of generating test patterns even after the design stage. The area of a circuit which is included in the device and unnecessary during normal operation can be reduced. The device includes a first circuit and a second circuit. The second circuit includes a plurality of third circuits, a plurality of fourth circuits, and a fifth circuit and has a function of generating a signal for testing operation of the first circuit and a function of operating as part of the first circuit. The fourth circuit has a function of storing a first data and a function of storing a second data. The fifth circuit has a function of writing the first data to the plurality of fourth circuits, a function of writing the second data to the plurality of fourth circuits, and a function of reading the second data from the plurality of fourth circuits.

A control for an electric motor is utilized to avoid operation in or near the resonance frequencies for the electric motor and its associated system components. The resonance frequencies can be identified experimentally at the design stage, or during operation of a component and electric motor. During start-up, shutdown or frequency adjustment, the control drives the speed through the resonance frequency zones more rapidly, and also avoids operation in or near those resonance frequencies during steady state operation. In disclosed embodiments, the electric motors are associated with fans, pumps and compressors in a refrigerant system.

A comprehensive construction method based on a BIM technology comprises three parts of determination of a deepening design basis, a design stage based on the BIM and drawing construction, and the determination of the deepening design basis comprises a clearance requirement report, a design blueprint, equipment parameters, technical requirements and related national and industrial specifications; wherein the drawing comprises a structure hole reserving drawing, a masonry wall hole reserving drawing, a pipeline comprehensive drawing, a single-specialty plane drawing, a section drawing, a supportand hanger large sample drawing, a machine room large sample drawing, a net height drawing and a precise assembly positioning drawing; wherein the support hanger large sample drawing is used for drawing the comprehensive support hanger and the large support hanger, and the drawing comprises a specific method large sample of the support hanger and bearing information of the support hanger. According to the pipeline comprehensive technology based on the BIM technology, professional models of buildings, structures, electromechanics and the like can be integrated, problems are found before construction of a project is started, and the problems are solved before construction through deepening design and design optimization.

In one embodiment, a method for predicting yield during the design stage includes receiving defectivity data identifying defects associated with previous wafer designs, and dividing the defects into systematic defects and random defects. For each design layout of a new wafer design, yield is predicted separately for the systematic defects and the random defects. A combined yield is then calculated based on the yield predicted for the systematic defects and the yield predicted for the random defects.

The present invention discloses a helicopter aerodynamic layout optimization method capable of reducing the adverse effect of aerodynamic interference. According to the method, aiming at the defects of a wind tunnel test and a CFD method and based on a discrete vortex method and a surface element method, a coupled aerodynamic interference high-precision analysis model for a helicopter is set up, so that the influence of aerodynamic interference on the helicopter can be considered only by simulating calculation without carrying out the wind tunnel test; compared with the CFD method, the method has the advantages of greatly reducing the requirements of a simulation model for computing resources and shortening computing time. In order to further reduce calculated amount and a optimization region, a helicopter fuselage shape parameter model is set up by a parametric method and a combined optimization method based on an agent model is adopted, so that the optimal helicopter aerodynamic outline and layout are obtained and the purpose of reducing aerodynamic interference to improve the flight characteristics of the helicopter is achieved. The helicopter aerodynamic layout optimization method can be applied to the conceptual design phase of the helicopter so as to improve the flight characteristics, the balancing characteristic, stability and manoeuvrability of the helicopter.

The invention discloses an analysis method for reducing rolling motion of a ship. The analysis method comprises the following steps of according to an established three-dimensional stimulation image of the ship, calculating instant restoring force and instant wave incidence force of the ship under any waves, calculating a rolling angle and a ship rolling probability according to the ship heaving, pitching and rolling three degrees of freedom coupling motion differential equation to obtain the probability that the rolling angle of the ship is smaller than a flooding angle, thereby judging whether the ship runs at a safe state; and by regulating a navigational state of the ship, obtaining a numerical simulation result of the motion of the ship in any wave directions under the action of random waves and the probability that the rolling angle is smaller than the flooding angle, so that a navigation state of the ship corresponding to the maximum of the probability that the rolling angle is smaller than the flooding angle can be found out, and the rolling motion of the ship can be reduced by selecting the navigation state or changing the model line of a ship body at a design stage. According to the analysis method for reducing the rolling motion of the ship, which is disclosed by the invention, the rolling angle and the rolling probability are calculated, so that the rolling motion of the ship under any waves is reduced.

The invention discloses a face expression editing method based on generative adversarial networks. The method includes the overall steps of: entering a data preparation stage, wherein face images aremanually labeled and clipped; entering a model design stage, wherein a model is generated by a generator and a discriminator; entering a model training stage, wherein real face images with labels andimages generated by the generator are input into the discriminator, the discriminator is trained and enabled to be used to distinguish distribution of real samples and generated samples and learn distribution of face expressions and distribution of face identity information, then to-be-edited face pictures and expression control vectors are input into the generator, face pictures controlled by theexpression control vectors are output, then real training is carried out on the trained discriminator, and the above-mentioned step is repeated to complete construction of the model; and inputting images to test the constructed model. The method can ensure that the generator generates face images which are closer to real face image distribution, better maintain face identity information, and aremore efficient in expression editing.

The invention discloses a system for evaluating the performance of a chip through the collaboration of multiple processors. The system comprises an open short circuit detection module, a USB communication processing module, a PMU control module, a signal scanning module, a voltage control module, a frequency measurement module, a test index evaluating module and an expansion measurement module. The performance indexes and the parameters of multiple chips are controlled to be tested and evaluated on the research and design stage, PC controlled software is taken as a man-machine interface, multiple types of index tests are integrated on one system through synchronous testing to test and evaluate the chip, and the testing efficiency is greatly improved.

The invention discloses a method for analyzing and predicting noise outside a car, which aims at overcoming the problem that the noise outside the car is difficult to be predicted in the developing and designing stage of the car product. The method comprises the steps of: 1) establishing an SEA model of the car body structure: dividing the car body into a plurality of structural sub-systems, and connecting all structural sub-systems according to the correlations; 2) establishing an SEA model for an external acoustic cavity of the car: establishing SEA models for the external acoustic cavitiesof the car at two sides and on the external surface of the car body in the SEA model of the car body; 3) determining the SEA parameter of the car body and the external acoustic cavity sub-system of the car: determining the mode density of each sub-system, determining the internal loss factor of each sub-system, and determining the coupling loss factor of all sub-systems; 4) determining the external excitation energy of the car body: determining the acoustic excitation energy of an engine cabin, determining the excitation energy of suspended engine, determining the excitation energy of unevenness of the road surface on the car body, and determining the excitation energy of the wind pressure on the external surface of the car body; and 5) analyzing and predicting the noise outside the car.

The invention relates to a system and a method for testing power supply properties. The system for testing the power supply properties comprises a computer, a DC power supply, an electronic load supply, an oscilloscope and a heater. An operator can operate the computer to control the DC power supply, the electronic load supply and the heater to respectively provide DC input voltage, virtual load and environmental temperature required by measurement for a device to be tested, and utilizes the oscilloscope to acquire the property value / wave of an input power supply and the property value / wave of an output power supply of the device to be tested; and the oscilloscope sends the property value / wave of the input power supply and the property value / wave of the output power supply back to the computer for the confirmation of the operator, and the aim of automatically testing the power supply properties of the device to be tested is achieved. The system and the method can automatically test the power supply properties of the device to be tested at a preset environmental temperature to achieve the aims of saving time and saving human resources, and simultaneously can ensure that the device to be tested is in accordance with the requirement of each power supply property at the design stage.

The invention provides a method and a device for creating a database table model. A demand analysis stage and a model design stage before a target database is created can be substantially shortened, a standard database table model can be quickly established, data loading efficiency is improved, and data warehouse construction is quickened. The method for creating the database table model comprises the following steps: storing source table information which is required for creating a target table and is obtained from a dictionary table of a source database; converting a source table field name and a source table field type to obtain a target table field name and a target table field type which can be identified by the target database; obtaining a corresponding target table name from source table identification information, and obtaining a table establishing code of the target table according to the target table name, the target name field name, the target table field type, a source table field description and a source table description; and executing the table establishing code to generate an integral target table model.

The invention discloses an automobile panel die design method, which comprises the following steps of: (1) establishing a corresponding theoretical model according to the geometrical structural characteristics of an automobile panel; (2) removing the structural characteristics unrelated to the deformation of a die cavity surface from the theoretical model; (3) establishing a finite element model according to the theoretical model simplified by the step (2), and simulating an automobile panel die molding process; (4) calculating the deformation of the die cavity surface after the simulation byusing a computer; (5) performing compensation design and amendment on the theoretical model obtained by the step (1) based on the deformation of the die cavity surface, thereby obtaining a model of an actual die to be machined; and (6) manufacturing the actual die according to the model obtained by the step (5). In the method, corresponding deformation compensation can be performed on the die cavity surface in a design stage so as to offset the influence of the deformation of the actual die, increase the joint degree of the die cavity surface, make the die can be designed and machined in place once, further shorten a die debugging period and reduce the manufacturing cost of the die.

A train control dynamic message coding method can reduce the message coding links in the design stage and save message storage space and omit part of the links of message management to promote the running efficiency of train. The technical proposal is that the method comprises the following steps of dynamic coding design and responder message processing; the dynamic coding design comprises the following steps in specific that the system is collocated with a datasheet; a station static datasheet, a route measurement table, a track sectional table, a responder location table and a long-short linked list are processed; based on the station route condition and responder location, the correspondence between the responder and the route is established and every responder is separately corresponding to difference route and forms circuit parameter packets according to the design principle; the parameter packets comprise a responder link packet, a circuit velocity packet, a circuit slope packet, a track sectional packet, a reverse operational packet, a large-sized switch packet and a shunting danger packet.

This invention presents Ecosystems addressing limited capabilities for interactive team design, amidst thrust for improved productivity, enhanced creativity and higher quality. The Ecosystem for Team Design and Collaboration presents apparatus for taking snapshots of whiteboards with sketches from planning, design or brainstorming meetings, using image sensor embedded in a mobile client, for offering a vector representation of the content and hence expediting the preparation of ‘presentable entities’ (eliminating the need to redraw). The Ecosystem for Learning and Team Design outlines a flexible design methodology for automatically assessing the quality of design activities relative to a given design process. It is the only learning tool for computer aided design (CAD) capable of assessing all the five design stages. Its assessment engine, the e-design process, is modular and can be integrated into electronic lab notebooks. Its input, the standardized e-design notebooks, are also quite versatile and can accommodate complex 3D CAD files.

A power transmission and transformation project three-dimensional-aided preliminary design system comprises a data storage unit, a power transmission and transformation project typical model base unit, a data exchange interface, a three-dimensional rendering engine unit and a spatial analysis unit. The data storage unit is used for storing and managing spatial data and non-spatial data needed to be referenced in designing power transmission and transformation projects of various types, the power transmission and transformation project typical model base unit is used for storing power transmission and transformation equipment three-dimensional models of various types and with representative significance by combining actual power transmission and transformation project design, the data exchange interface is used for inputting and outputting power transmission line design tower optimized arranging software data formats, the three-dimensional rendering engine unit is used for creating, loading and rendering three-dimensional scenes, and the spatial analysis unit is used for providing spatial measuring and spatial analysis functions. The power transmission and transformation project three-dimensional-aided preliminary design system created by applying the three-dimensional GIS (geographic information system) technology integrates data of various types needed at a preliminary design stage, comprehensively judges various factors influencing power transmission line route selection and transformer station address selection by stacking of the data of various types, and overcomes defects of poor up-to-date state, poor visuality and the like of topographic maps in conventional methods.

Provided is an electromagnetic compatibility reliability (EMR) evaluation method for an avionic device power supply module. The method comprises the five steps of information collection, simulated analysis, hard failure EMR evaluation, cumulative failure EMR evaluation and comprehensive EMR evaluation. According to the electromagnetic reliability evaluation method for the avionic device power supply module, the electromagnetic effect action mechanism is researched from the angle of the failure mechanism, the simulation technology is utilized, a stress and strength interference (SSI) model and a method of probability physics of failure (PPoF) are combined, the detailed research is performed for the relative reliability of electromagnetic compatibility of the avionic device power supply module, the method for evaluating the electromagnetic reliability of the avionic device power supply module on the basis of the simulated analysis is put forward, therefore, a designer can have intuitive understanding on the EMR level of a product in the design stage, and the reference basis can be supplied for the design improvement of the product.

The invention discloses a system and method for prefabricating and installing an informatization whole-lifecycle pipeline. The method comprises the following steps of outputting an ISO-IDF (International Standard Organization-Integrated Data File) interface file in a design stage, reading coordinates and data in an IDF, and forming a prefabricated pipe section package; creating a prefabricating plan according to the production ability, the productivity and the processing process of each production line, forming a work order, and generating barcode data; calculating the length of a pipe, creating CNC (Computerized Numerical Control) cutting data, length data and prefabricating data, automatically distributing the work order to each production line, and carrying out the production process tracking and the state tracking; and scanning a barcode once by using a scanner, wherein the scanning shows that a corresponding working procedure is completed and qualified, real-time stage variation exists in a database after each scanning, and thus the production process and the state of the pipe can be queried in a tracking way. According to the system and method disclosed by the invention, the organic integration of whole-lifecycle information during a designing, prefabricating and installing process of a pipeline can be reached, and the purposes of data search, resource sharing and information communication are realized.

The invention relates to development of a novel test bed for a leaf spring for an automobile suspension. The test bed is characterized in that the test bed can accurately simulate suspension leaf spring stiffness performance and perform fatigue life tests. The test bed can accurately extract a mounting hard spot of the leaf spring and accurately simulate an actual automobile mounting environment, the leaf spring is mounted through front and back lug supports, stress and jump of the leaf spring during loading completely conform to the actual automobile state, so that the actual stress of the leaf spring is simulated accurately, and the accuracy of the leaf spring bed tests is improved. The novel bed can quickly and accurately extract leaf spring performance data and perform fatigue tests at the automobile design stage and precisely simulate the motion track and stress of the leaf spring in an actual working condition; the test equipment is applicable to various leaf springs, integrates a static stiffness test and a fatigue test of the leaf spring, accurately reflects the problem about design of state leaf springs and can assist an automobile enterprise in discovering problems at the design stage to a great extent, the product quality is improved, the whole automobile development period is shortened, and the cost and risks are reduced.

The invention discloses a method for shortening verification time of hardware Trojan in an integrated circuit test. A special structure comprises a gate cell and a multi-way switch, wherein the multi-way switch has a test input signal TI and a Trojan test mode enabling signal EN; the gate cell is used for performing logical adhesion with target nodes in the tested integrated circuit, and the type of the gate cell is decided by occurrence probability 0 and 1 of the nodes; the special structure MFTD is inserted by the following steps of: firstly, setting a probability threshold value Pth; classifying all nodes of the tested integrated circuit into the nodes of which the overturning probability is greater than the Pth and the nodes of which the overturning probability is less than the Pth; and then inserting the special structure MFTD by circularly selecting the target nodes until the overturning probability of all the nodes is greater than the Pth. According to the invention, the MFTD is inserted into the design stage of the integrated circuit, so that the activation degree of the hardware Trojan is effectively improved in the test, and the verification time of the hardware Trojan is shortened.

The invention provides a reliability design optimization method for an avionic device. By means of the reliability design optimization method for the avionic device, the reliability index of the device can be practically and effectively promoted in the design stage. According to the technical scheme, the method comprises the following steps that three-dimensional digital prototype modeling is conducted according to an avionic device design scheme; on the basis of a three-dimensional digital prototype, environmental stress digital prototype modeling is conducted according to a device working load, an environmental load and design information relevant to device characteristics, and a model is corrected and verified; thermal environment stress, mechanical environment stress and the like of the avionic device are analyzed by referring to environmental conditions, environmental stress weak links of the device are searched, and corresponding avionic device design optimization is conducted; a fault physical digital prototype model is built, environmental stress analysis results are introduced to conduct device fault risk prediction, avionic device design optimization is conducted aiming at the reliability weak links occurring in the analysis process, and the reliability level of the avionic device is evaluated according to the optimized fault risk distribution situation.

The invention relates to a method for determining the shrinking percentages of an investment pattern precision casting mold. The method comprises the steps of (1) establishing numerical analysis models for various operation stages of investment casting, (2) taking the analog output of a previous numerical analysis model as the analog input of a next numerical analysis model, establishing an error flow of the whole process and obtaining the final casting simulation deformation result, (3) performing reversible deformation to a mold design stage from the final casting simulation deformation result and determining the profile shrinking percentage of each key dimension. Compared with the prior art, the method has the advantages that the error flow is established or the error evolution of the key dimensions, more accurate and detailed shrinking percentages can be obtained based on the backtracking of the error flow, and the design detail accuracy of the mold design can be enriched; besides, pre-deformation is performed on the error evolution of the whole process of the castings at the source of the mold design, and therefore, the correction work on the castings in the subsequent steps can be saved, the workload is saved and the precision of the castings is improved.

The invention relates to an aircraft avionics technology, in particular to an avionics system digitalized design verification system and a method. The system comprises a BCMP simulator, a MC simulator, an aircraft member simulator, a display device simulator and an OFP emulator. The invention comprises the following design steps such as POP design, system ICD design, each aircraft member simulator design and BCMP simulator design and the like, which can provide digitalized design tools for aircraft design stage, verify the top-level design without verification and modification at the uniting and adjustment stage after the aircraft members are developed, and greatly reduce cost and time of the design, verification and modification of the top-level design; moreover, pilots can intervene in advance in the prior period of model number design, thus evaluating the overall design of the avionics system and shortening model number development cycle.

The invention provides a model-based gasoline engine calibration method, belongs to the technical field of gasoline engines, and designs and develops a statistical model based gasoline engine calibration method mainly for a dynamic property optimized calibration process of a gasoline engine. The model-based gasoline engine calibration method comprises the following steps: (1), design of test operating points, (2) establishment of a mathematical statistics model and (3), optimization of calibrating procedure design, wherein firstly, relatively fewer test points can be selected in a test design phase so as to reduce workload; then an engine statistical model is established with a mathematical statistics method after related data are acquired; and finally, optimized calibration is performed on the basis of the statistical model. Under the premise that the performance of the gasoline engine is improved without loss of calibration accuracy, the model-based gasoline engine calibration method has the advantages as follows: time is saved, the cost is reduced, the output torque is increased, and the problems that the traditional manual calibration method is time-consuming, labor-consuming and low in efficiency and the conventional automatic optimized calibration equipment is complicated in technology and expensive are solved.

The invention discloses a site arrangement construction method using BIM technology, which is characterized in that the site arrangement is divided into three stages: a design stage; simulation phase;an adjustment phase; a design phase. Before construction, carry out two-dimensional site layout; use BIM construction site layout software to optimize the layout; using BIM construction site layout software, combined with site terrain rendering model; setting relevant variables in the whole construction process; simulation stage: simulate in the three-dimensional site layout model, set the time variable in advance, simulate the whole process of construction, check the irrationality of the construction group, adjust the design of the construction group, and form the final version; adjustment stage: combined with the time limit adjustment of the critical line caused by force majeure factors on site, according to the actual progress of the site, optimize the model, adjust the construction group, then simulate, and then adjust, the model runs in PDCA mode, so that the construction group can be optimized. BIM transforms the layout into a visual, intuitive three-dimensional layout, so thatthe space achieves reasonable optimization objectives.

The invention relates to a method for configurating a virtual terminal of an intelligent device GOOSE in a digitalized substation, comprising the following steps: at least respectively defining the opening-inserting logic 1-i of the intelligent device as virtual terminals IN1-INi, and defining the opening-outgoing logic 1-j as virtual terminals OUT1-OUTj; expressing configuration of each intelligent device GOOSE in the form of connection in accordance with the principles of relay protection based on the intelligent device; respectively defining the terminal logic connection 1-k as LL1-LLk; arranging and re-expressing the configuration of the intelligent devices GOOSE in form of a list according to the logic connection based on virtual terminal logic connection; a GOOSE figuration list consists of the virtual terminal logic connection and the corresponding starting point and end point, wherein, the logic connection consists of two lists of the logic connection number LLk and the logic connection name. In this invention, the method can express network-transmission-based GOOSE digital signals in the form of the virtual terminals, so that personnel in charge of designing, construction, debugging, operation and maintenance of the intelligent device can intuitively read the opening-inserting logic, the opening-outgoing logic, exit logic and the like; in addition, the method can successfully solve the problem of difficult expression of GOOSE protective configuration on the drawing board, thus realizing construction according to the drawing, greatly improving efficiency of construction and debugging, meeting the requirement that 'digitalized substation is constructed by designing'.

To provide a quality control system of a printed board for realizing efficient quality control.An imaging means picks up images of a printed board in each process in a series of processes for soldering components on the printed board. An image storage means stores (accumulates) the picked-up images in each of processes so that they may be correlated. An inspection means inspects the solder mounting quality from the picked-up image of the final process. Then, if a failure is detected by inspection, a candidate event selecting means selects one or more events which may be a cause of the failure among the events which may be generated in designing steps or an intermediate processes in manufacturing. An event analyzing means determines the degree of occurrence of each of candidate events by referring to the picked-up images in the intermediate processes. A cause analyzing means estimates the cause of the failure on the basis of combinations of the degree of occurrence of each of the candidate events.

A new and / or improved method, apparatus and / or system is disclosed which aids in extending correct behavioral models to include fault modes and in fault mode analysis of components and / or systems in simulated model environments, including, e.g., FMEA and FMECA and diagnostic fault tree generation.