127 results about "Building simulation" patented technology

The invention discloses a designing method for a multimode control system of an aircraft. The designing method comprises demand analysis, system analysis and system designing stages, and is characterized in that the demand analysis, and management and confirmation data are from user demand (stakeholder demand) knowledge base; output data is a demand confirmed by an aircraft system and serves as one of system analysis inputs of the aircraft system; the input data of mode switching design at the system design stage is from a control mode conforming with tactics design and tactics type needs; output data are a mode switching controller conforming with the tactics need; co-simulation and verification at the system design stage refers to that co-simulation is performed on isomerism models of an aircraft control system in the fields of machines, hydraulic and the like in a built simulation environment. According to the method, the functional, physical and software system structure of the system can be defined, and demand capturing of the system and system analysis can also be supported.

In a construction simulation apparatus: a 3-D already-existing model, installation progress data, and a 3-D new-construction model are recorded in databases; a match determination unit determines similarity in one or more installation positions of one or more of pieces of equipment and piping components between the 3-D already-existing model and the 3-D new-construction model; and a progress selection unit selects, as portions of installation schedule data corresponding to the 3-D new-construction model, portions of the installation progress data corresponding to matching portions of the 3-D already-existing model, on the basis of data indicating a correspondence relationship between the 3-D already-existing model and the installation progress data, where the matching portions of the 3-D already-existing model are extracted by the match determination unit and respectively match the portions of the 3-D new-construction model.

A method and system for mapping anatomical connection and signaling across a multiplicity of channels, channel contents, and channel speed. In particular, the anatomical connection and signaling is mapped in relation to the human brain. Constructs a three-dimensional, dynamically structured, active model, for general or individual patterns. Uses for the present invention include: risk reduction in surgery to significant channels; planning cell insertion at sites where they can be expected to migrate to a less reachable target site; guiding searches for metastatic tumors; indirectly localizing brain structures; constructing models of disease in which multiple sites are involved in the deficit and any proposed repair; and building simulation of normal processes which require the sequential interaction of multiple sites.

The invention provides a road and building simulation modeling method based on real road surface data, the method comprising the following steps: S10, establishing a road network simulation model by using aerial photograph images; S20, generating building simulation models along the road by aerial survey data, and matching the building simulation models with the road network simulation models; S30, importing the digital elevation model data, so that the simulation model of the road network and the building conforms to the digital elevation model, and simulating the undulation condition of thereal pavement; S40, optimizing the overall appearance ratio of the model with reference to the real image to obtain the final model. According to the idea that the model attribute information groupware is modeled and matched with the space, by means of multi-source data fusion, the road model and the building model along the road are combined and matched with reference to the actual pavement, so that the model can show more details of the pavement, can restore the shape of the real street scene, undulation and other details, and can be better used in driving perspective simulation and other application scenes.

A system and method generates test vectors and a corresponding test program to manipulate terminal units in a building system so pressure and flow measurements correspond to independent modeling equations. The pressure and flow responses of the building system to the test program manipulation may be used to compute loss coefficients for the modeling equations. The modeling equations may then be updated with the computed loss coefficients so a building simulation may be performed. The simulated static pressure response of the modeling equations may be compared to measured static pressures to evaluate the sufficiency of the modeling equations.

The invention discloses a method for building a simulation model of an automatic transmission transmission system. First, a modular modeling tool is used to construct a simulation model of an automatic transmission transmission system, and then the built automatic transmission transmission system simulation model is simplified and optimized in real time. The automatic transmission transmission system simulation model built by the automatic transmission transmission system simulation model building method of the present invention can accurately simulate the working state of the automatic transmission, avoid system oscillation, and perform hardware-in-the-loop real-time simulation.

The method comprises: a) setting multi-jump PW (pseudo wire) parameters on the PW switch node; b) in term of the switching list item of multi-jump PW generated by said parameters, the PW switch node establishes the multi-jump PW; meanwhile the PW switch node can also establish multi-jump PW in term of switching list item generated by the information obtained from dynamical protocol. In the PWE3 services, the invention can ensure interconnection of the multi-jump PWE3 services in case of not running dynamical signaling LDP; beside, when the oscillation occurs in network, a great amount of signaling messages will not be produced.

The invention provides a wide-base truck radial tire building machine belt drum and a design method.A middle section of the belt drum is designed to be of a convex curved surface structure, the contour line of the surface of the belt drum is composed of two straight line sections and an arc section located between the two straight line sections, and according to the width of a main belt layer, the radius of curvature, the diameter of a first belt layer and the elongation, the width d of the arc section, the radius R of curvature, the diameter D of the belt drum and the lengths l1 and l2 of the two straight line sections are preliminarily determined; the optimal parameter is optimally determined through a tire building simulation method by using the cord thread elongation and tread rubber material flow uniformity as judgment standards.The cord thread elongation of the belt layers is effectively controlled, the problem that belt layer stress is uneven during sizing is thoroughly solved, the abnormal phenomenon that a wide-base tire shoulder rubber material flows to the crown center in the process of sizing in a machine is eliminated, the tire endurance quality is improved, and enforceability and operability are extremely strong.

The invention discloses a double-loop constant-frequency control method based on a BUCK-LLC (buck-logical link control) two-level DC/DC (direct current/direct current) converter. The switch frequency of an LLC resonance converter is set to two-element resonance frequency; the output voltage of the BUCK-LLC two-level DC/DC converter is collected by a differential circuit; the inductive current of a BUCK converter is collected by a current sensor to implement double-loop control. The double-loop constant-frequency control method has the advantages that the gain of the LLC resonance converter is not changed, and the output voltage of the BUCK-LLC two-level DC/DC converter is adjusted by regulating the duty cycle of a BUCK converter switch tube through the double-loop control; compared with the traditional single-loop control, the dynamic response speed of the double-loop control is higher, and the steady-state performance is better; the power density of the converter is higher; for a built simulation model of the BUCK-LLC two-level DC/DC converter, the range of input voltage is wider, the anti-load disturbance ability is stronger, and the certain engineering application value is realized.

The invention relates to an aviation hydraulic steering engine system fault simulation model base building method. The method includes the steps: first, building a mathematic model of a hydraulic steering engine system; second, building simulation nominal models under various working conditions according to the mathematic model of the hydraulic steering engine system, and saving the models and simulation data; third, building fault simulation models under various typical fault conditions based on the simulation nominal models, and saving the models and the simulation data; fourth, building a corresponding relation table of model name keywords, model names and model saving paths to facilitate search for the needed models and simulation data. The status quo of lack of system fault data can be improved, and the data are reserved for subsequent research for a fault diagnosis method for the system.

The invention relates to an auxiliary decision-making method and system for urban rail transit network operation emergencies. The method comprises the steps: building simulation models through a digital twinning technology, and combining a plurality of simulation models to build a digital twinning rail transit network; according to historical passenger flow data of the urban rail transit network, data simulation and prediction are carried out, and emergency situations under possible situations are analyzed; deducing driving and passenger flow trends in the simulation model according to an emergency situation, establishing communication between the urban rail transit system and the digital twin simulation system, and realizing real-time driving analysis and interaction of passenger flow data and analogue simulation data; and analyzing the harm degree and the development condition of the received emergencies, determining the early warning level, carrying out quantitative and qualitative evaluation on the effect after the implementation of the emergency treatment measures, and providing the simulation process and the result to the scheduling personnel of the network control center in the form of images and texts to assist the scheduling personnel to carry out strategy optimization.

The invention relates to a high-speed train electrical system simulation platform, comprising a master device industrial personal computer for sending control commands to a plurality of slave device industrial personal computers through a communication network, and the plurality of slave device industrial personal computers for receiving commands through the communication network, respectively building simulation models corresponding to the subsystem of the electrical system, and outputting simulation result. According to the high-speed train electrical system simulation platform, the master device industrial personal computer is in data communication with the plurality of slave device industrial personal computers through any communication network, so that functional model stimulation on each functional subsystems and controlled subsystems in a high-speed train network control system is achieved, and stimulation visualization and interaction are good; and the platform is stable in operation, so that the good test platform is provided for the system design and unit function verification of the high-speed train, requirements on scientific research and experiments are met, and the applicability is good.

The invention discloses a distribution network real model simulation platform. The objective of the invention is to simulate the fault patterns of switches so as to detect the faults of switch-type devices. The whole platform can be used for teaching demonstration or actual detection and can be also used for initiatively simulating fault conditions so as to carry out device detection or teaching demonstration. In order to achieve the above objective, the distribution network real model simulation platform of the present invention comprises infrastructures installed in a work site and matched auxiliary power source supply equipment; the distribution network real model simulation platform is further provided with detected or simulated equipment; the platform is configured with a real object detection state and a fault simulation state; and the detected or simulated equipment is a switchgear. According to the platform, real distribution network equipment fault models are adopted to reproduce the typical defects of a 10kV distribution network switchgear; the built simulation platform has three-phase voltage adjustable and three-phase high-current analog load changing capabilities and can realize laboratorial reproduction of typical defects under rated voltage and rated load.

The invention relates to a design method of a distributed model prediction controller of an automatic power generation control system. The design method comprises the following steps: building simulation models of the automatic power generation control system of a regional interconnection power system, wherein the simulation models comprise a wind power generation model and a photovoltaic power generation model; according to the simulation models of the automatic power generation control system, designing a distributed model prediction control algorithm and establishing and optimizing a targetfunction; determining a constraint condition according to the actual operation condition of the automatic power generation control system, and processing the constraint; and according to the target function and the constraint condition, optimizing by adopting a guided firework algorithm to obtain controller output. According to the design method, the dynamic performance of the interconnected power grid automatic power generation control system is effectively improved, and the safe and stable operation of a power system is ensured.

The invention relates to a novel multi-factor tactical internet connection reliability simulation method which solves the problem that complex movement modes and terrain environments cannot be comprehensively considered in the research process of tactical internet connection reliability. The method includes the steps: designing and building simulation network scenes in an OPNET, generating combat movement modes by the aid of a two-dimensional normal cloud model, adding the movement modes into the network scenes, adding business operation simulation, collecting simulation data in different movement modes and analyzing the simulation data to obtain a connection reliability curve; newly building same network scenes, adding real terrain data to obtain a connection reliability curve under terrain influence, and researching the influence of the real terrain environments on the network connection reliability. The method improves modeling of the movement modes and the terrain environments in network connection reliability research, solves the problem of difficulty in modeling the complex environments in networks and the movement modes, and builds a foundation for the research of complex factors of tactical internet reliability research.

The invention, which relates to the field of smart windows, provides an energy-saving type intelligent external window optimization control method. An EC casement window regulation strategy is determined according to different regions, different building types, and different orientations; the solar radiant heat can be utilized effectively, the natural lighting is increased, and glaring is avoided;and the optimized control problem of the multiple control targets in a photo-thermal environment is solved and the building energy consumption is reduced. According to the invention, on the basis ofarchitectural design parameters of the electrochromic casement window, control logics of the electrochromic casement window are set in an EnergyManagement System module of the EnergyPlus; with Genoptsoftware, an outdoor horizontal illumination control threshold of a control parameter of the electrochromic casement window state in the established EnergyPlus simulation model is optimized, so that the sum of the illumination energy consumption and the air conditioning energy consumption of the building simulation is minimized. Therefore, the building energy consumption is reduced effectively; and incorrect usage of the electrochromic casement window due to different regions, different orientations, different building types and different seasons is reduced effectively.

The invention provides a logistics warehouse simulation method, platform and system and relates to the field of manufacturing and logistics. The logistics warehouse simulation method of the present invention comprises a step of reading logistics warehouse scheduling information from a management system from a server at predetermined time intervals, a step of performing logistics warehouse simulation based on a logistics warehouse simulation model to generate a simulation result. Through the method, a simulation platform can read the logistics warehouse scheduling information from the management system and perform simulation in the built simulation model according to the logistics warehouse scheduling information, on the one hand, the automatic construction and generation of a scheduling algorithm in a simulation environment are not needed, and the simulation efficiency is improved, on the other hand, the simulation with the use of the logistics warehouse scheduling information from themanagement system can be more in line with a real situation, and the guiding significance of the simulation result for real production is improved.

The present disclosure provides a method and system for predicting building energy consumption based on a Holt-Winters and an extreme learning machine, the method including: constructing a building simulation model based on actual operation parameters of a building to obtain an original energy consumption data set of the building; decomposing the original energy consumption data set to obtain a linear energy consumption data set and a nonlinear energy consumption data set; performing prediction on the linear energy consumption data set by using a trained Holt-Winters model to obtain a linear energy consumption prediction result; and inputting the nonlinear energy consumption data set, the original energy consumption data set, and the linear energy consumption prediction result into a trained extreme learning machine model to output a building energy consumption prediction value of the building simulation model.

The invention discloses a power load calculation method and an information system considering the correlation of photovoltaic and cold load. The method comprises the following steps: collecting building simulation model variables; Obtaining a set of input variables and an output variable to be selected according to building simulation model variables and target uses; According to the set of inputvariables and output variables to be selected, the set of input variables of the building simulation model is obtained by the principle of maximum correlation and minimum redundancy. The data of inputvariables and output variables are trained by limit learning machine to obtain the final building simulation model. Through the final building simulation model, the theoretical calculation value of building load with high proportion of air-conditioning load is obtained. The calculation method can effectively improve the abnormal monitoring level of building load with high proportion of air-conditioning load, improve the short-term forecasting accuracy of building load, and realize the cooperative optimization of building and urban power network.

The invention discloses an electric field simulation method for a DC field of a super/ultrahigh-voltage converter station. The electric field simulation method comprises the steps of determining a keypart according to a structure of the DC field of the converter station; building simulation model of the DC field, and performing simplification to obtain a DC field simplification model; constructing a plurality of geometric models according to the DC field simplification model; obtaining a plurality of air model modules of an outer boundary rule; dividing the DC field simplification model to obtain a DC field division model; determining a corresponding relative dielectric constant and electrical conductivity according to a material of each part of the DC field, and applying to each part ofthe DC field simplification model; and obtaining electric field intensity of different moments by employing a full-period transient field calculation method. According to the electric field simulationmethod for the DC field of the super/ultrahigh-voltage converter station, disclosed by the invention, the simulation model can be simplified, and the simulation calculation efficiency is improved. The invention also discloses an electric field simulation device for the DC field of the super/ultrahigh-voltage converter station and a storage medium.

The invention provides an unmanned ship trajectory tracking control method and device, and the method comprises the steps: building an unmanned ship motion model, and simulating an interaction process between an unmanned ship and an environment through a built simulation environment; generating training data in the simulation interaction process of the unmanned ship motion model, and training the unmanned ship motion model through the training data to obtain an unmanned ship controller; and deploying the trained unmanned ship controller to a target unmanned ship, and correcting the algorithm neural network in the unmanned ship controller in the actual operation process of the target unmanned ship. According to the scheme, the problem that an existing unmanned ship model is poor in adaptability and universality is solved, and the technical effect of effectively improving the adaptability and the universality is achieved.

The invention relates to the field of modeling and simulation of excitation systems, and especially relates to a method for establishing a simulation model of an excitation system, that is, using a BPA simulation tool to build the simulation model which is basically consistent with the functions of a field actual measurement model. After model transformation, numerical values of KB and KH are within the limits of the values, and after parameter transformation, a BPA simulation tool is used to carry out simulation checking, and test the functions of the built simulation model. Through checking, errors of various key data indexes are within a prescribed range of excitation modeling guidelines, so that the built simulation model of the excitation system can be used for daily power grid stability analysis. The method for establishing the simulation model of the excitation system provided by the invention reduces the value of KB and increases the value of KH under the condition of guaranteeing the simulation effect; and the method for establishing the model is adopted innovatively, BPA data file input format constraints are solved, and simulation modeling work is well completed.

The invention relates to an architectural design device, and especially relates to an architectural design workbench. The technical problem to be solved is to provide the architectural design workbench. In order to solve the above technical problem, the invention provides the architectural design workbench, which comprises a double-support mechanism, a circular display mechanism, a protection projection mechanism and a double-expansion mechanism; a cover plate is arranged at the front end of a table body; and a base is arranged at the bottom end of the table body. According to the architectural design workbench provided by the invention, when in use, a drawing placement desktop can be expanded, and meanwhile, it is ensured that drawings on the two sides after expansion can be convenientlyviewed, and the illumination during viewing is ensured; the drawings on both sides can be viewed at the same time without adjusting the drawings, the observation and research of a building model can be carried out in a matched mode; and at the same time, protection and projection 3D can be achieved for coordinated research, the effect of omnibearing research is achieved, the convenience of users can be greatly improved, synchronous research comparison can be better achieved, and the error rate of building simulation assumptions is reduced.

The invention provides a method for building a simulation model capable of mining coal and extracting oil jointly, which comprises organizing each physical model according to a data structure of a scenario diagram, wherein the physical model is formed by basic pixel units; leading the physical model to a scene to be jointly combined with the scene, setting dynamic scheduling of the physical model, and setting a simulation route for the physical model. The scheme of the method solves the problems that the existing three-dimensional simulation model is large in data amount and slow in processing speed, and a common computer cannot operate.

The invention discloses a method and a system for evaluating submarine geological disasters. The method includes acquiring geological materials of target regions and experimental data of samples; building simulation models of the target regions on the basis of the geological materials and the experimental data of the samples; analyzing the simulation models on the basis of finite element strength reduction processes to generate stability safety coefficients; evaluating the submarine geological disasters on the basis of the stability safety coefficients and generating stability analysis and evaluation reports of the target regions. The method and the system have the advantages that true stress characteristics of geological models can be accurately expressed during evaluation on the marine geological disasters, and deformation procedures and occurrence mechanisms of the marine disasters can be accurately simulated.

The invention provides a demand response digital and physical hybrid simulating method and a system thereof. The method comprises the steps of selecting a control which satisfies a simulating demand from preset controls, configuring the control based on the simulating demand, and establishing a simulation demand response system; performing simulation deduction based on a simulation requirement anda built simulation demand response system; and evaluating the simulation demand response effect based on a simulation deduction result. According to the method and the system, through building the simulation demand response system, demand response simulation deduction is performed and a deduction result is evaluated, and simulation of an automatic demand response service and simulation of a powersupplying and consumption system can be realized. Furthermore based on semi-physical simulation technology, the response effect in an application process can be simulated in participating the demandresponse service by means of actual equipment or physical simulation equipment. Furthermore further verification is performed on feasibility of related scheme, plans, strategies and the like in the simulation system.