74results about How to "Reliable simulation" patented technology

The invention discloses a wind sand environment and engineering wind tunnel simulation device, in particular to a large opening direct-flow air blowing typed wind sand environment and engineering wind tunnel simulation device which is specially used for simulating wind sand movement and sand control engineering; the wind sand environment and engineering wind tunnel simulation device comprises a tunnel body which comprises an air inlet section (3), a transition section (4), a damp part with a damper (5), a first diffuser (6), a stabilization section (7), a contraction section (8), a speed vehicle (9), a testing section (10) and a second diffuser (11) which are sequentially connected one after another; and the power system is connected with the air inlet section (3) and is used for providing the power for the wind tunnel by a DC motor. The wind sand environment and engineering wind tunnel simulation device can truly simulate the wind sand control, thus pushing the wind sand control technique to go ahead; furthermore, the wind sand environment and engineering wind tunnel simulation device can carry out the test for preventing the diffusion of contamination and the test for the building dynamics characteristic and the like.

A data processing system is provided having a clock signal comparator comprising a reference input port for receiving a reference clock signal and at least a further input port for receiving respective further clock signal. Checking logic is provided within the clock signal comparator to check for a correspondence between the clock edge of the reference clock signal and a corresponding clock edge of the further clock signal within a predetermined time window. The checking logic is operable to check for the correspondence during operation of the data processing system. The clock-signal comparator can be provided on an integrated circuit or as part of the data processing apparatus having at least two different timing domains such as timing domains associated with two different instances of the same clock. Furthermore the clock-signal comparator is implemented in a hardware description language and integrated in a simulation of the operation of a data processing apparatus to detect timing errors that arise from numerical artefacts of the simulation as well as timing errors that arise from configuration and layout of the circuit elements of the data processing apparatus being simulated.

The invention discloses a method, system and device for control system simulation testing in a semiconductor manufacturing process. The method comprises the steps of generating simulation devices; setting attribute information, data types and communication protocols of the simulation devices, setting parameters and communication instructions and simulation operations between the simulation devices, setting coupling conditions, and establishing a device simulation model according to the coupling conditions; carrying out the simulation operations in the simulation model, and obtaining test results. According to the method, system and device for control system simulation testing, testing efficiency is improved, and testing risks are reduced.

The invention discloses a simulation experiment method for evaluating a grouting reinforcement effect of different factors on a fractured rock mass. The fractured wall rock of an underground engineering is simulated by combining crushed rock particles in different particle size, different orthogonal experiments of different levels are designed for various factors influencing the grouting reinforcement effect, different factors are comprehensively researched, and the factor which severely influences the reinforcement effect of the crushed wall rock as well as a parameter range and a relation of the remarkable influence factor and an evaluation index can be obtained. The method is scientific and rigorous, various factors influencing the grouting reinforcement effect of the fractured wall rock can be comprehensively researched, and instructive significance for scheme design and implementation for grouting reinforcing on-situ fractured wall rock of the underground engineering can be realized.

The invention provides a method for simulating GPS signal dynamic receiving environment and a system thereof. The method comprises the following steps: reading satellite ephemerides and establishing asatellite motion model according to the current time; solving receiver carrier attitudes; calculating the incident direction of a satellite signal according to the receiver carrier attitudes and determining each visible satellite; calculating the transmission delay, the transmission error, the Doppler shift and the signal transmission error of the satellite signal; and generating an analog signal. The satellite motion model is established according to the satellite ephemerides, the receiver carrier attitudes are solved in the satellite motion model, and the incident direction of the satellitesignal is calculated by the solution structure of the receiver carrier attitudes. Finally, the transmission delay, the transmission error, the Doppler shift and the signal transmission error of the satellite signal are acquired to generate an analog signal. The method has simple calculation process and low complexity, and better realizes the real-time performance of signal reception analysis, thereby more accurately simulating the received signal in a dynamic environment. The method for simulating GPS signal dynamic receiving environment and the system thereof are applied to the field of signal processing.

The invention discloses a method for evaluating high temperature aging degree of a DC cable insulation material based on a compound field. A cumulative damage method is adopted to effectively evaluatethe insulation state of an insulation material for a DC cable. The method comprises the following main steps: first, preparing a polypropylene sample based on a pin-plate electrode; then, carrying out the experiment by using an electric branch experiment system device under a high temperature environment; secondly, observing the aging situation of the electric branch of the sample; finally, calculating by using the Matlab language. The pin-plate electrode system simulates the inevitable defects inside the DC cable and effectively simulates the working conditions of the DC cable in the actualoperation.

The invention discloses a training mine for simulating actual anti-mine training. The training mine is characterized in that a training mine body comprises a housing, a fuse unit, a position indication unit, a power supply module, a balancing weight and a control unit, wherein the fuse unit, the power supply module, the balancing weight and the control unit are all fixedly mounted in the housing; the position indication unit is arranged at the upper end of the outside of the housing, and a connecting ring is arranged at the lower end of the outside of the housing; a mooring system comprises a connecting mooring system and a load rejection mooring system; a swivel of the connecting mooring system is connected to the connecting ring at the lower end of the outside of the pressure-resistant housing, one end of a chemical fiber rope is connected with the rotary ring through a shackle, and the other end of the chemical fiber rope is connected with an acoustic release transponder through a shackle; the front end of an anchor chain of the load rejection mooring system is connected with the acoustic release transponder through a shackle, the rear end of the anchor chain of the load rejection mooring system is connected with a ballast anchor through an inactive rope, and a floating ball and a pouring weight are sequentially connected to the anchor chain; the position indication unit consists of a communication module, a module housing and an antenna, and the communication module is connected with the power supply module in the training mine body through a wire; and the antenna is assembled at the upper part of the module housing.

The invention discloses a system and a method for simulating the output of a solar cell array based on a programmable power supply. The system comprises a control computer, the programmable power supply and a resistor R, wherein the computer is used for setting a maximum voltage VMAX and a maximum current IMAX of the programmable power supply according to an open-circuit voltage VOC, a short-circuit current ISC, a maximum power point voltage VMP and a maximum point current IMP of the solar cell array; the programmable power supply is used for supplying power to a load under the limit condition of the maximum voltage VMAX and the maximum current IMAX; and the resistor R is connected between the programmable power supply and the load and is used for simulating the internal resistance of the solar cell array. By utilizing the system for simulating the output of the solar cell array based on the programmable power supply, a power supply working point can be adjusted according the load, thereby simulating the I-V curve output of the cell array; and the system is simple in structure and low in realization cost.

The invention relates to the technical field of motors, and discloses a simulation method and a system for magnetism loss fault of a permanent magnet synchronous motor, and a medium. The authenticityand validity of the magnetism loss fault simulation of the permanent magnet synchronous motor are improved, and a more real and reliable environment is provided for the magnetism loss fault simulationof the permanent magnet synchronous motor. The method comprises the following steps of: establishing a three-phase coordinate system of the permanent magnet synchronous motor under the condition of the magnetism loss fault; calculating a first synthesized voltage of the permanent magnet synchronous motor in the three- phase coordinate system; converting the first synthesized voltage into a secondsynthesized voltage under a two-phase rotating coordinate system; determining an internal constraint condition required for model construction based on the second synthesized voltage when the permanent magnet synchronous motor has the magnetism loss fault; establishing a torque equation, a rotor motion equation, and an internal voltage equation of the permanent magnet synchronous motor accordingto the internal constraint condition under the condition of the magnetism loss fault; and constructing a magnetism loss fault simulator according to the parameters construction of the affected permanent magnet synchronous motor, and using the magnetism loss fault simulator to perform fault simulation.

The invention discloses an AI model-based agent decision making method, an AI model training method, a server and a medium. The method comprises the steps: obtaining current frame state information ofan agent in a 3D virtual environment and current frame 3D map information; outputting current frame action output information corresponding to the intelligent agent based on the current frame state information and the current frame 3D map information through a time sequence feature extraction module of an AI model; obtaining the state information of the next frame of the intelligent agent according to the current frame action output information; acquiring historical position information of the intelligent agent, and generating a next frame of 3D map information according to the historical position information; and outputting next frame action output information corresponding to the intelligent agent according to the next frame state information and the next frame 3D map information. Therefore, reliable and efficient AI simulation is realized.

The invention relates to a simulation analysis template for a hung crossbeam. The simulation analysis template is characterized by consisting of a geometric parameterization module, a material definition module, a grid partitioning module, a boundary condition module and an automatic report generation module. A product drawing of the hung crossbeam passes through the modules, then, experience, standard and specifications package of simulation analysis is carried out, operation is completed by a human-machine interactive interface so as to realize the processing of simulation, and specific steps, experiences and knowledge for the simulation analysis of the hung crossbeam are generalized and summarized and then are developed into a simulation analysis wizard tool in a customized manner; simulation staff can complete whole analysis through operating the simulation analysis template.

The present invention discloses a method and system for simulating stator inter-turn short circuit fault degradation process of a permanent magnet synchronous motor. The method has the advantages that: by establishing a discrete model and a stator resistance time-varying model of the stator inter-turn short circuit fault state of the permanent magnet synchronous motor, and an interaction model between the stator temperature and the stator winding degradation, according to the interaction model, a stator temperature value at next moment is obtained, according to the stator temperature value atthe next moment and the stator resistance time-varying model, the state update value is obtained, and according to the state update value, the simulation process of the stator inter-turn short circuitfault degradation process of the permanent magnet synchronous motor is realized through iterative. The method and system solves the technical problem that the prior art cannot simulate the stator inter-turn short circuit fault degenerating process, can analyze the change law of operating state of the permanent magnet synchronous motor under the state of the stator inter-turn short circuit fault degradation, and provides safe, reliable and near real fault emulation and simulation for technical research on detection and diagnose of the stator inter-turn short circuit fault of the permanent magnet synchronous motor

The invention discloses a dynamic induction simulation device for broken surrounding rock grouting reinforcement, and a testing method therefor. The device consists of a test piece die, a grouting container, a high-pressure oxygen pressurizer, a sensing apparatus, a dynamic monitoring control system, and other main parts. The simulation of broken surrounding rocks in underground construction is achieved through the combination of mashed rock particles with different diameters. The dynamic monitoring control system is used for the real-time monitoring and control of grouting pressure, so as to enable the grouting pressure to remain steady. An osmotic pressure sensor and a flow sensor are used for the measurement of the osmotic pressure and flow of a rock mass, thereby providing data support for subsequent research.

The invention discloses a simulation system for heat and moisture of a human body in a vehicle. The simulation system is composed of a plurality of body heat dissipating simulation units (100), a plurality of body moisture dispersion simulation units (200) and a power supply (300). Each body heat dissipating simulation unit (100) is used for dissipating heat with a preset value after electrification, wherein the preset heat value is equal to the value of heat dissipated by one body; each body moisture dispersion simulation unit (200) is used for dispersing moisture with a preset value after electrification, wherein the preset moisture value is equal to the value of moisture dissipated by one body; and each body heat dissipating simulation unit (100) and each body moisture dispersion simulation unit (200) are connected with a power supply (300). With the simulation system, situations of heat and moisture dissipated by a plurality of human bodies in a vehicle can be simulated conveniently, reliably, and accurately; and the actual riding environment of the vehicle is simulated to meet the need of load capacity testing of a vehicle air conditioner.

The invention discloses an urban different underlying surface disaster reduction effect analysis method, which comprises the following steps: step 1, simulating a ponding evolution process under rainstorm situations of different recurrence periods by adopting a two-dimensional hydrodynamic numerical model, analyzing a waterlogging risk distribution situation under urban current situation conditions, and constructing a rainstorm waterlogging calculation model; step 2, according to the current urban land utilization situation, selecting several kinds of underlying surface drainage measures at least including permeable pavement, horizontal green land and concave green land arrangement, grass planting ditch arrangement and roof greening, and analyzing the elastic waterlogging resistance effect of the underlying surface drainage measures; step 3, analyzing combined waterlogging resistance effects of different underlying surface measures; and step 4, performing cost benefit comparative analysis on the waterlogging drainage schemes of different underlying surfaces. According to the method, different types of underlying surfaces are considered on the basis of high-precision terrain, a refined model is established, and rainstorm waterlogging is reliably simulated.

The invention provides a sea surface chlorophyll transmission path simulation method based on satellite observation data. Sea surface chlorophyll concentration obtained by remote sensing observation of a satellite-borne sensor is used as an initial source point; based on a sea surface flow field based on satellite observation and numerical simulation, random disturbance caused by turbulence is considered; the transmission distance of chlorophyll is subjected to transmission distance continuous simulation based on a Monte Carlo method, and the horizontal transport vector time sequence of chlorophyll in a preset target area in a preset period is determined, so that reliable simulation of a sea surface chlorophyll concentration transmission path is realized, and chlorophyll path simulation prediction can be realized quickly, accurately and reliably.

The invention discloses a circuit breaker anti-jumping test instrument and a circuit breaker anti-jumping test method. The circuit breaker anti-jumping test instrument is characterized in that a rectification device, a pulse generator and an electron counter are integrated in a box body, wherein an external 220V alternation current power source of the rectification device provides electricity to the whole instrument after rectified, the pulse generator provides a switch opening pulse, an output end of the pulse generator is connected with a switch opening output terminal, an output end of the electron counter is connected with a relay test terminal, continuous direct voltage and continuous direct pulse voltage which are output are used to test whether an electric anti-jumping function of a circuit breaker is normal or not, and simultaneously anti-jumping movement situations of the circuit breaker are tested and recorded, and then are comprehensively analyzed and judged by being combined with moving situations of the circuit breaker in a test. Therefore, a traditional test method is changed, various interference factors in the test are eliminated, and test results are accurate and reliable.

The invention relates to the technical field of motors, and discloses a fault injection method and a fault injector of a squirrel cage asynchronous motor rotor conducting bar, so as to simulate the performance degradation rule of the conducting bar in an entire crack evolution stage under the influence of temperature and provide a real and reliable simulation environment for asynchronous motor conducting bar faults. The method provided by the invention comprises the following steps: establishing a relationship between a damage rupture degree of the asynchronous motor conducting bar in a whole process from the occurrence of cracks to complete rupture and a resistance value, and meanwhile considering the influence of a temperature factor to the crack evolution to obtain a fault evolution rule of the rotor conducting bar resistance under the influence of temperature; and after the conducting bar fault is determined, replacing the conducting bar resistance corresponding to the conducting bar fault with the conducting bar resistance under normal conditions according to the varying matrix elements in an asynchronous motor multiloop mathematic model, and establishing the multiloop mathematic model of the asynchronous motor rotor conducting bar faults under the influence of the temperature for solving and implementing fault injection.

The invention discloses a reverse starting test method and device for a traction system. The method comprises the following steps that: S1, a test accompanying traction system and a to-be-tested traction system are connected with each other, so that the a reverse starting test system is constructed, the test accompanying traction system simulates the load of the to-be-tested traction system; S2, when a test is started, the reverse of the test accompanying traction system is controlled to be started, and the test accompanying traction system is controlled to operate according to control parameters calculated according to operation conditions required by the test; S3, when the test accompanying traction system operates under a specified operation working condition, the to-be-tested tractionsystem is started, a forward torque is applied onto the to-be-tested traction system, and the to-be-tested traction system and the test accompanying traction system are controlled to realize reverse twin trawling according to the torque direction of the test accompanying traction system, so that a vehicle reverse starting working condition can be simulated; and S4, the operation states of the to-be-tested traction system and the test accompanying traction system are monitored, a test result is judged. The method has the advantages of simple test operation, low implementation cost, high test reliability, good test performance and the like.

The invention discloses a metal layer molten pool heat transfer characteristic simulation material, and a preparation method and application thereof. The metal layer molten pool heat transfer characteristic simulation material comprises metal bismuth and bismuth iodide, and the Pr of the metal layer molten pool heat transfer characteristic simulation material under the condition of 500 DEG C is 0.08-0.12. The preparation process of the metal layer molten pool heat transfer characteristic simulation material comprises the following steps: preparing a bismuth iodide molten salt; heating the metal bismuth until the metal bismuth is completely molten, and continuously heating to a temperature T; slowly adding the prepared bismuth iodide molten salt into the molten metal bismuth for multiple times at the temperature T; and completely melting the bismuth iodide crystals on the surface layer of the metal bismuth to obtain the metal layer molten pool heat transfer characteristic simulation material. The Pr number of the metal layer molten pool heat transfer characteristic simulation material provided by the invention in a working state is 0.08-0.12, is closer to the Prandtl number of a real material; therefore, the real material of the metal layer can be simulated more accurately and reliably, the heat transfer characteristic of the metal layer of the metal layer molten pool in the reactor prototype lower end socket can be reflected more accurately, the uncertainty of the heat transfer relational expression obtained through experiments is effectively reduced, and data support is provided for formulation and implementation of a melt in-reactor retention strategy.

The embodiment of the invention discloses a data simulation method and a device for an event camera. A specific embodiment of the method comprises the following steps: decoding a to-be-processed video to obtain a video frame sequence; inputting a target video frame in the video frame sequence into a full convolutional network UNet to obtain event camera threshold distribution information; sampling each pixel in the target video frame to obtain an event camera threshold set; performing pseudo-parallel event data simulation generation processing on the event camera threshold set and the video frame sequence to obtain simulation event camera data; performing generative adversarial learning on simulation event camera data and event camera shooting data to obtain updated event camera threshold distribution information; and generating simulation event camera data based on the updated event camera threshold distribution information, the video frame sequence and the preset noise signal. The method can be widely applied to computer vision systems in the fields of national defense and military, film and television production, public safety and the like.

The football snap aid simulates a snap of a football by a center to a quarterback located behind. The football snap aid includes an apparatus that supports a padded release lever from below, and which when engaged in an upward movement shall release a spring-loaded arm that supports a football on a cradle. The spring-loaded arm translates from a lowered position to a hiked position so as to simulate actual movement of the football during a snap. The football snap aid includes an upper handle and locking tab that can rotate to reset the spring-loaded arm between uses. The apparatus includes adjustable legs that can accommodate differently sized end user. The spring-loaded arm includes adjustment means to accommodate differently sized end users.

The invention relates to polymorphic radioactive iodine environment simulation and equipment comprehensive evaluation equipment. The equipment comprises a filter prototype test loop, an absorption material test loop connected with the filter prototypetest loop, and an air bypass loop, wherein the filter prototype test loop comprises a filter prototype, a test loop air inlet pipe connected with an air inlet end of the filter prototype, a test loop air outlet pipe connected with an air outlet end of the filter prototype, a tracer gas injection port and a aerosol injection port which are formed in the test loop air inlet pipe, an online gamma spectrometer connected with the test loop gas inlet pipe and the test loop gas outlet pipe, and other measuring instruments used for measuring other nuclides or gases added according to needs. The equipment can simulate and reproduce temperature and humidity environmental conditions ubiquitous when pollution gas discharged by nuclear facilities from normal operation to severe accident working conditions, is used for researching prototypes of materials or equipment related to operation under pollution conditions, and is efficient and reliable in simulation.

The invention discloses a metal liquid filling type flow regime viewer which can be used for directly observing the cast metal liquid filling type state. The viewer is composed of an endoscope 1, a steel tube 2, a limiting clamp 3, a signal transmission line 4, a computer 5 and a die 6. The endoscope 1 is arranged in the steel tube 2, the steel tube 2 is pre-buried in the die 6, the limiting clamp 3 is clamped at one end of the steel tube 2, one end of the signal transmission line 4 penetrates through the limiting clamp 3 to be connected with the endoscope 1, and the other end of the signal transmission line 4 is connected with the computer 5. By means of the viewer, the filling type flow state when metal liquid leaves an ingate can be directly observed, reasonability of the design of a pouring system is determined, and the pouring system is optimized by adjusting parameters and the structure of the pouring system so as to enable the metal liquid filling process to reach an ideal state and overcome casting defects generated by unreasonable design of the pouring system; the viewer can be used for direct observation, is more reliable than computer simulation, safer and more convenient to use than an X-ray observation filling process, and the viewer is simple in structure and low in use cost.

Disclosed herein is a land based horizontal shock wave tester that simulates double shock waves generated in an underwater explosion. The horizontal shock wave tester includes a first shock wave generating unit, a second shock wave generating unit and a shock wave control unit. The first shock wave generating unit is installed at a predetermined position on a stationary mass on which a specimen is mounted. The second shock wave generating unit is provided to generate a secondary shock wave derived from a primary shock wave input from the first shock wave generating unit by collision of an impacting mass with the stationary mass. The shock wave control unit controls the second shock wave generating unit by using MR damper units so that a period and a magnitude of the stationary shock wave that vary depending on a period and a magnitude of the primary shock wave can be adjusted.

The invention belongs to the technical field of civil aviation airport scene simulation, and particularly relates to an airport scene distributed operation simulation method and system based on operation rules, and the airport scene distributed operation simulation method based on the operation rules comprises the steps: carrying out the modeling of an airport scene; performing airport operation rule modeling; carrying out airport distributed interactive modeling; and performing airport scene distributed operation simulation according to airport scene modeling, airport operation rule modeling and airport distributed interaction modeling, so that a feasible scheme is provided for airport scene operation simulation, the degree of refinement is higher, the simulation process is more real and reliable, and reliable technical support is provided for research work of building four types of airports and green civil aviation and airport scene operation ability evaluation and planning research.

The invention discloses a circuit based on the linkage among the access admission of a card swiping machine with elevator calling and lighting and a realizing method of the same. The circuit comprisesan output linkage signal module and a receipt linkage signal control module, wherein the input of the receipt linkage signal control module is connected with the output of the output linkage signal module through an outer connecting wire; the output linkage signal module comprises an access control machine, a door lock, a door-open button, a switching tube Q1, a resistor R1, diodes D1, D2 and D3and a direct current power supply; one end of the door-open button is connected to the positive pole of the direct current power supply, the other end of the door-open button is connected to the positive pole of the door lock, the negative pole of the door lock is connected to the DOOR+ end of the output switch of the access control machine, and the DOOR- end of the output switch of the access control machine is connected to the negative pole of the direct current power supply; one end of the resistor R1 is connected to the positive pole of the direct current power supply, the other end of theresistor R1 is connected to the anodes of the diodes D1 and D3 in parallel; the cathode of the diode D3 is connected to the DOOR+ end of the output switch of the access control machine; the cathode of the diode D1 is connected to the anode of the diode D2; the cathode of the diode D2 is connected to the control end of the switching tube Q1; the positive pole of the direct current power supply isconnected to the positive pole of the receipt linkage signal control module through an outer connecting wire; the high potential end of the switching tube Q1 is connected to the negative pole of the receipt linkage signal control module through an outer connecting wire; the low potential end of the switching tube Q1 is connected to the negative pole of the direct current power supply; the D3 withthe cathode being connected to the DOOR+ end of the output switch of the access control machine is placed in the circuit; and the anode of the D3 is connected to the anode of the D1. The realizing method is characterized in that when the door is opened by swiping a card through the card swiping machine and the elevator on the same floor is called at night, a sound is produced from a close distanceto enable the lighting lamp in the elevator hall to be turned on by a sound-light controlled switch, and that a sound is produced on purpose from a remote distance to enable the lighting lamp in theelevator hall to be turned on is reduced.

The present invention relates to stenosis therapy planning. A first volumetric data set is received by medical imaging of at least part of an artery comprising a stenosis. At least one two-dimensional image data (of the stenosis is received. A first arterial pressure drop is determined around the stenosis. A second volumetric data set is generated by registering the at least one two-dimensional image data with the first volumetric data set. A third volumetric data set is generated by simulating a geometry modification of the stenosis in the second volumetric data set and a second arterial pressure drop is estimated around the stenosis in the third volumetric data set.

The invention provides a method for determining electromagnetic parameters of a radio wave propagation environment, and the method comprises the steps: actually measuring radio propagation informationof a plurality of test points of the radio wave propagation environment, and drawing an actual measurement radio propagation environment map according to the radio propagation information; establishing a radio wave propagation environment simulation model, and simulating the simulation model by adopting a rasterization processing method to obtain a plurality of simulation radio wave propagation environment diagrams; comparing the actual measurement radio propagation environment diagram with each simulation radio propagation environment diagram to obtain a simulation radio propagation environment diagram closest to the test point; and extracting corresponding electromagnetic parameters from the radio wave propagation environment simulation model according to the obtained simulation radio propagation environment diagram closest to the test point. According to the method, the electromagnetic parameters required by ray tracking can be corrected or estimated only by performing local actualmeasurement, so that the operation complexity is reduced, and more accurate and reliable ray tracking channel simulation and channel prediction can be realized.