169 results about "Uniform design" patented technology

One embodiment of the present invention concerns a test assembly for testing product circuitry of a product die. In one embodiment, the test assembly includes at test die and an interconnection substrate for electrically coupling the test die to a host controller that communicates with the test die. The test die may be designed according to a design methodology that includes the step of concurrently designing test circuitry and a product circuitry in a unified design. The test circuitry can be designed to provide a high degree of fault coverage for the corresponding product circuitry generally without regard to the amount of silicon area that will be required by the test circuitry. The design methodology then partitions the unified design into the test die and the product die. The test die includes the test circuitry and the product die includes the product circuitry. The product and test die may then be fabricated on separate semiconductor wafers. By partitioning the product circuitry and test circuitry into separate die, embedded test circuitry can be either eliminated or minimized on the product die. This will tend to decrease the size of the product die and decrease the cost of manufacturing the product die while maintaining a high degree of test coverage of the product circuits within the product die. The test die can be used to test multiple product die on one or more wafers.

The invention discloses a tactical missile weapon system precision simulation and verification method, which comprises the steps of building a flight simulation mathematic model of a missile; developing missile full trajectory simulation software, selecting a corresponding algorithm meeting the precision to convert the mathematic model into a computer program, and performing flight simulation under the theoretical condition; verifying the model; analyzing various interference factors influencing the hitting precision of the missile, and building mathematic models for the interferences; according to the influence mechanism of various interferences on the flight of the missile, adding the interference factors to the flight simulation mathematic model to be subjected to simulation calculation to obtain corresponding results; performing simulation by adopting a Monte Carlo trajectory based on a uniform design method, and performing statistic analysis on the simulation results by arranging a simulation experiment table to screen out the factors having obvious influence on the precision of the missile. Through the technical scheme of the invention, the simulation amount can be effectively reduced.

The invention relates to a highway bridge seismic vulnerability analysis method on the basis of ANN (artificial neural network)-MC (Monte Carlo)-UD (uniform design) methods. Aiming to overcome limitation that structural randomness is not taken into consideration by existing seismic vulnerability analysis methods, the highway bridge seismic vulnerability analysis method can be used for probability statistic analysis to capacity and requirements of bridge structures respectively by the combination of the methods of ANN, MC and UD, so that seismic vulnerability curves taking structural randomness and seismic randomness comprehensively are formed according to the probability statistic analysis. The highway bridge seismic vulnerability analysis method can provide a theoretical basis for bridge operation, seismic risk amassment and the like.

The invention relates to the technical field of power and electronics, and discloses a capacitance balancing control method for three-phase full-bridge modular multilevel converter legs. Based on an on-off state of a current sub-module, leg current and an instruction for inputting a sub-module, the sub-modules which are positively input and reversely input at the next moment are determined, so that balancing control of capacitance and voltage of the sub-modules inside the legs is achieved. The capacitance balancing control method utilizes the on-off state of full-bridge sub-modules to the largest extent, enables the on-off frequency of components in the sub-modules to be the same as far as possible, and facilitates uniform design. Compared with a half-bridge structure, under the same control condition and control requirement, a full-bridge structure reduces the on-off frequency of each component. The control method is applied to operation and control of a converter on a direct current side under a normal condition or a fault condition, and control switching is not needed.

The invention discloses a concrete thermodynamic parameter intelligent recognition method based on a support vector machine. The method includes firstly determining the range of inverse parameters; designing sample schemes of concrete thermodynamic parameters by an uniform design method; acquiring one temperature value of each feature point in the sample schemes through finite element forward modeling, utilizing the temperature values and corresponding thermodynamic parameters in the sample schemes as study samples, and establishing a support vector machine model; utilizing the differential evolution algorithm to perform global search, searching and acquiring each coefficient of the support vector machine, determining the nonlinear relationship between the inverse parameters and actual temperature values of monitoring points, and establishing a support vector machine prediction model; utilizing the support vector machine prediction model as a forward model, utilizing the differential evolution algorithm to perform global search for the concrete thermodynamic parameters, and searching and acquiring inverse parameters closest to the actual temperature values of the monitoring points as the optimal concrete thermodynamic parameters. The method has the advantages of rapidness in recognition and simpleness.

A Unity 3D based three-dimensional virtual crowd scene generating method includes 1, establishing a database; 2, establishing a static virtual environment; 3, creating an event; 4; creating figure models; 5, creating a story control object and constructing an event tree, an event trigger generation sub object, an event selection sub object, an event confliction detection sub object and a crowd dynamic generation sub object in the story control object; 6, calling the story control object by a game engine to generate a three-dimensional virtual dangerous environment; 7, implementing the construction of the three-dimensional virtual dangerous environment. According to the invention, uniform design of crowd, environment and event is preformed, function completeness is achieved. By employing assemblies and plug-ins provided by the Unity 3D game engine, development operation is simplified. The invention synthesizes basic design elements required for virtual crowd scene development, improves efficiency of virtual crowd dangerous scene generation and similar game environment development and has advantages of function completeness and high development efficiency.

The invention discloses a decomposition-based train operation multi-objective differential evolution algorithm. The algorithm comprises the steps of 1, establishing a train elementary substance pointdynamical model; 2, establishing a train multi-objective optimization model according to the train multi-objective operation requirement; Step 3, decomposing the train operation multi-objective optimization problem into N single-objective optimization sub-problems by adopting a Chebyshev method; 4, in order to ensure the uniformity of the obtained Pareto solution, generating a weight vector by adopting a formula uniform design method; And 5, selecting an evolution strategy to form a differential evolution strategy pool, and improving the diversity and convergence of an evolution process by adopting a self-adaptive differential evolution strategy based on reputation. The train operation multi-objective optimization problem is converted into the single-objective problem, on the basis that the uniformly distributed weight vectors are obtained, multiple control strategies are provided for the train on the premise that safety is guaranteed through the self-adaptive differential evolution strategy, and safe, quasi-point, accurate parking and low-energy-consumption operation of the train are achieved.

The invention discloses a mining filling cementing material ratio decision-making method, relating to the field of mining technology. A uniform design experiment method and an orthogonal experiment are adopted to obtain orthogonal experiment data that the strength of a filling body is changed along with the change of ratio of gelatinizing agent; an artificial neural network model is adopted to perform information extension on finite orthogonal experiment data; a statistical regression and parameter fitting method is adopted to establish the function relationship of the cementing material ratio and the strength of the filling body, the strength of the filling body is used as an optimization object and the value range of the gelatinizing agent material is used as a constraint condition to establish a cementing material ratio optimization model; the optimization model is solved to obtain the optimal cementing material ratio scheme. The decision-making method can utilize the finite experiment data to rapidly and accurately obtain the optimal ratio of the cementing material meeting the requirement of the strength of the filling body.

The present invention provides a D-optimal inner table design based Taguchi experimental design method. The method comprises specific steps of: 1. providing basic experimental information including experimental responses, factors, inter-factor restrictions and the like according to experimental objectives, conditions and engineering experience; 2. selecting a proper uniform design table according to the number of noise factors and the number of proposed levels; 3. determining a relationship model between the responses and the factors, and the number of times of inner table experiments; 4. in a design area, providing an inner table design scheme with given experimental times by using the D-optimal design method, and completing the inner table design; 5. completing external table design by using an empirical distribution function based point equal-division method; 6. performing an experiment according to an experimental scheme, calculating a signal-to-noise ratio of mass properties by using performance indexes obtained from the experiment, and calculating the optimal level of a controllable factor that enables the signal-to-noise ratio to be maximized; 7. determining the optimal level of a stable factor by a sensitivity analysis method; and 8. changing and adjusting the factors to determine an optimal factor level combination.

Provided are a traffic microscopic simulation based urban grade crossing signalized intersection optimization method and system. The traffic microscopic simulation based urban grade crossing signalized intersection optimization method comprises the steps of screening and optimizing an alternative item from an alternative item database by obtaining intersection relevant information; then applying uniform design to arrange an experiment, wherein intersection control delay serves as influence, and the alternative item serves as a factor; finally establishing an intersection simulation model to perform simulation experiment and obtaining an optimization scheme most effective in master control delay. The shortcoming of a traditional optimization mode relying on experience is overcome by utilizing systematicness of a uniform design mathematical model and controllability of analogue simulation, optimized alternative items are combined, and combination effects are compared to obtain a comprehensive optimization scheme systemically and scientifically reducing intersection control delay.

A planter insert extends the usefulness of a planter by creating a plurality of adjoined containers that fit within and conform to the inside shape of a planter, substantially filling its opening. The containers may be of uniform design and therefore portable and swappable, which facilitates modifying the arrangement of plants including those with different soil requirements and growing seasons. The containers may be adjoined using a locking system, a coupling system or any other means. A set of containers may be designed to fit around another object, such as an independent or center container of a different shape and size. Planter inserts provide maximum portability while minimizing wasted space often caused by gaps or support systems.

The invention relates to a template-based integrated design platform and a construction method thereof, and belongs to the technical field of integrated design environment. The integrated design platform of the invention comprises a database generation module, an asynchronous data conversion module, a specification integration module, a knowledge integration module, a flow analysis module, an application integration module, an algorithm integration module, a template generation module and a combined template generation module, wherein the databases generated by the database generation module comprise a product database, a specification base, a knowledge base and a flow base. When used by a user, the platform directly faces the service environment of the combined template; and only the input and output of the combined template need to be operated and various integration and operation behaviors of the intermediate modules do not need to be considered. The platform solves the problems of non-uniform design environment, obvious data switching barrier, nonstandard flow and specification, low knowledge reutilization efficiency and the like in the engineering and product design process, and provides a uniform integrated design environment for the digitalization design of the engineering and products.

The invention relates to a novel high-speed motor train unit non-power bogie. The novel high-speed motor train unit non-power bogie comprises a framework, a wheel pair, a primary fastening suspension device, a secondary fastening suspension device, a traction device and a foundation brake device, wherein a crossbeam and side beams of the framework respectively adopt a box-type structure formed by welding steel plates, a main body consists of two side beams and a crossbeam, the crossbeam and each side beam are respectively formed by welding steel plates, the crossbeam and each side beam are respectively provided with various functional seat in a welding manner, the crossbeam and each side beam are connected with each other in a plugging manner, an upper cover plate and a lower cover plate of each side beam extend inwards, a side vertical plate of the crossbeam is directly inserted in the extension position of the upper cover plate and the lower cover plate of the side beam and directly connected with the inner vertical plate of the side beam, the lower cover plates of the crossbeam and each side beam are directly connected with each other in a welding manner, and the upper cover plates of the crossbeam and the side beams are connected in a variable cross section manner by virtue of a transitional connecting block; a small longitudinal beam is welded on the crossbeam, and brake beam is connected with the upper cover plate of the crossbeam and the small longitudinal beam in welding manner. The bogie is simple in structure, so that the application, maintenance and repairing can be facilitated; the modularized and uniform design of parts can be realized, so that the applicability of products can be improved, and the fatigue service life of the bogie can be prolonged.

The invention relates to a main steam temperature PID (Proportion Integration Differentiation) control method of an ultra supercritical unit for boiler power generation in a thermal power plant based on an improved genetic algorithm. The method comprises the improved genetic algorithm. The improved genetic algorithm is improved on the basis of a simple genetic algorithm, optimal sequencing retaining selection, non-uniform linear intersection and Gauss mutation operators are introduced, a uniform design method is adopted to construct an initial population, and the intersection and variation probability is adjusted by Sigmoid function adaptability; and a PID controller orienting a DCS (distributed control system) is adopted, and the parameter set of the controller under a part load section is optimally obtained through the improved genetic algorithm. The optimizing speed and precision of the genetic algorithm are improved, the control method can replace an engineering adjusting method with complex engineering and low accuracy, the workload of on-site debugging personnel is reduced, the purpose of intelligent main steam temperature control is achieved, the application of an intelligent optimization technology under the DCS is realized, and the need of stably controlling the main steam temperature of the ultra supercritical unit in deep peak regulation is met.

A building site guardrail fast to mount and demount comprises a plurality of standing columns parallelly arranged and a plurality of guardrail units. A base plate is welded to the bottom of each standing column and provided with at least three mounting holes, and an expansion bolt for fixing the base plate on the ground penetrates each mounting hole. Each guardrail unit comprises two vertical beams located on two sides of the guardrail unit, a steel plate mesh located between the two vertical beams, and crossbeams which are transversely disposed and used for fixedly connecting the two vertical beams. Each guardrail unit is disposed every two adjacent standing columns, and the vertical beams of the guardrail unit are fixedly connected with the corresponding standing columns in an inserted manner. The building site guardrail has the advantages that the guardrail is simple in structure, uniform in specification and capable of achieve unit type assembling; the specification of each guardrail unit is designed uniformly, circulation in different building sites is achieved, material waste is reduced, and building cost is lowered; the connecting parts are in socket and spigot joint, fast mounting and demounting can be achieved, and time and labor are saved.

The invention discloses a leave-multiple-out cross validation (LMOCV) method of a quantitative structure and activity relationship (QSAR) model of an organic pollutant. In the method, a uniform design method is integrated with LMOCV; related coefficients of uniform design optimized LMOCV (UDOLMOCV) serve as variable screening ending standards; meanwhile, the model is subjected to sample internal cross validation by using the UDOLMOCV during validation in the model; higher sample volatility is provided by using predictive capacity judgment indexes; validated samples are uniformly distributed in sample spaces by infrequent sampling validation of the sample; and the sample which is selected every time has quite high representativeness. The validated sample which is obtained by the method has quite high representativeness of sample distribution, so the defect of singleness of sample selection of a Monte Carlo method is overcome. The invention can be used for validating the stability and predicative capacity of the QSAR model and can be used for discovering and determining instability factors in the model.

The invention discloses an iron ore sintering test method which includes steps as follows: confirming object and influence factor of the iron ore sintering test method for processing multi-factor multi-level test; selecting suitable uniform design test method for confirming a used uniform design table; processing iron ore ingredient, mixing, igniting and air suction sintering test according with the confirmed uniform design table for obtaining a series test result; utilizing the test result corresponding to the factor level of the uniform design table for analyzing, using method of direct preferential and model optimum for confirming an optimum parameter combination of the iron ore sintering, and processing must validated test. The method can shorten test time, reduce energy consumption and obtain test result with high efficiency and high quality.

The invention provides an on-line measurement method for water content of mechanically-parched Longjing tea leaves, which is implemented based on spectral characteristic parameters. The method comprises the following steps: firstly determining a sampling plan by the uniform design method, obtaining the all-band spectrum of the mechanically-parched Longjing tea leaves by use of a hyperspectral device, and performing spectral pretreatment and analysis; and determining sensitive spectral bands and calculating spectral characteristic parameters according to the relevance analysis on water content of mechanically-parched Longjing tea leaves, and establishing an inverse model based on the small-sample non-statistical theory and ant colony algorithm to predict the water content of the mechanically-parched Longjing tea leaves. The technical scheme provided by the invention can achieve the purpose of on-line real-time detection of the water content of mechanically-parched Longjing tea leaves, and can be used in a full-automatic tea leaf processing equipment system to increase the production efficiency.

The embodiment of the invention discloses a PLC program design method and system. The purpose is to solve the problems that PLC program design has no layer, the logical relationship of the interactive parts of subfunctions is not clear, too many logical judgment variables exist in the same row, and programs are poor in readability and maintainability. The method includes the steps that a system logical layer is built and used for controlling the logic of an editing system, maintaining system state transition and outputting an instruction for activating a corresponding flow path according to the current state; a flow path control layer is built and used for selecting an appropriate flow path controller to control the corresponding flow path according to the output of the system logical layer; a flow path realizing layer is built and used for executing corresponding actions according to the governed detailed flow path in the flow path controller. The PLC program design method and system fill in the gap that no uniform design architecture exists when the PLC programs are written, improve readability, maintainability and testability of the programs, and improve the quality of the programs and reduce the step of judging the logical relationship, and judgment on the logical relationship of PLC control is separated from action output.

The subject of this invention is a laterally unconstrained magnetic joint and application of said joint in tip-tilt and piston-tip-tilt optical mounts. The laterally unconstrained magnetic joint in its basic embodiment comprises two interfacing parts: one having a flat surface interfacing a convex surface of the other, wherein one or both parts are made from permanent magnets that are magnetized along the axis of the joint, and the other of the said parts is made from a ferromagnetic material thus creating magnetic force attraction between the two parts. The resulting lack of lateral mechanical constraint between the two parts of the joint is utilized in tip-tilt mounts by decoupling an adjustor and/or actuator from the payload resulting in a simple, uniform design, while magnetic force provides retention sufficient for a wide variety of applications.

The invention discloses a vehicle controller based on wire harness judgment and an identifying and controlling method thereof. The controller comprises a digital quantity acquiring unit, an analog quantity acquiring unit, a power driver unit, a CAN (controller area network) communication interface unit and a microprocessor; after a vehicle is electrified and initialized, the controller realizes address identifying and executes a corresponding load control function. The controller and the identifying and controlling method thereof execute the control function of corresponding control areas through the information acquired by the digital quantity acquiring unit; the structure and the method could be used for realizing a uniform design of the controller, so that the structures of controllersapplied in the control areas of the vehicle can be totally the same; the address identification can be performed only through the wire harness setting educed by the controller, so that the purpose ofinstalling the same control unit in different positions to become the controller matched with the control areas of the vehicle can be achieved, therefore, the working load for designing the controller is reduced, the quantity of spare parts of the controller in maintenance process after the vehicle is assembled is reduced, and the cost is greatly reduced.

The invention discloses a structural heat transfer analysis finite element modeling method. The method comprises the following steps of: executing pre-processing work; determining initial boundary condition parameters of an analysis object finite element model and setting an uniform design table of the initial boundary condition parameters; establishing an analysis object temperature field calculation finite element model by taking each group of parameters in the uniform design table as a boundary, and carrying out calculation to obtain a temperature value of a model key point; constructing a data sample by adoption of parameter combination in the uniform design table and the calculated temperature value of the key point, and establishing a finite element model parameter mathematic regression model through LS-SVR training; and carrying out optimization to determine an optimum boundary condition parameter of the model on the basis of a genetic algorithm by adoption of the obtained mathematic regression model, so as to complete finite element modeling.