16results about How to "High simulation fidelity" patented technology

The invention discloses an IGBT packaging material dielectric property and thermal resistance linkage testing device, which relates to the technical field of packaging material testing, is used for carrying out performance evaluation on an IGBT packaging material in intelligent power distribution switch control equipment, and comprises a testing box, the inner wall of the testing box is covered with a thermal insulation layer, the front surface of the testing box is provided with a testing cavity, and the testing cavity is provided with a thermal resistance test cavity. And a lower heat conduction base is arranged at the bottom of the test cavity. The temperature field and heat flow state of a packaging material sample can be actively and accurately controlled, the working temperature rise and heat dissipation conditions of a real IGBT module are simulated, meanwhile, the lower electrode plate and the upper electrode plate directly make contact with the sample and are connected to the broadband dielectric impedance spectrometer, and therefore the temperature rise and heat dissipation conditions of the IGBT module can be simulated while controllable thermal excitation is applied. Dielectric spectrum characteristics of a material can be measured in situ in real time, the temperature sensor directly monitors the temperature of a sample interface, and then thermal resistance testing and broadband dielectric property testing can be dynamically evaluated in the same sample, the same time and the same controlled thermal environment.

The application discloses a kind of strategy deduction method and device based on multi-agent, the application is by constructing character special vector database, integrate relevant background information, and by searching history behavior and injecting generation dynamic prompt word, guide large language model (LLM) Generation response in line with the background and past behavior pattern of specific interest party, to significantly improve the simulation reality of role behavior, so that each role agent based on its values and core position, by analyzing and linking the context of multiple rounds of interaction, autonomously make decisions and respond, to build the simulation of real interest party each party agent, then realize the accurate deduction of construction strategy, that is, the application can effectively guarantee the accuracy of artificial intelligence innovation ecological construction strategy deduction by high-fidelity role position simulation and dynamic evolution game deduction.

The utility model discloses a solar energy landscape lamp relates to lamp technical field, including the connecting plate, the first display area and the second display area are equipped with the connecting plate side, the first display area and the second display area staggered setting are on the connecting plate side wall, and the staggered bright of LED lamp group simulates the dynamic landscape of butterfly wing fanning, increases the interestingness and the liveliness of landscape, can also attract people's attention, promotes the aesthetic degree of environment.

The application belongs to the technical field of welding simulation, and relates to a high-fidelity welding simulation boundary condition correction method and system. The method comprises the following steps: after the clamping of a welding part is completed and before welding is performed, three-dimensional geometric measured data of the welding part in a clamping constraint state is collected; the measured three-dimensional geometric data is spatially registered with a simulation theoretical model, clamping deformation caused by clamping is extracted, and the clamping deformation is reconstructed into a simulation grid node displacement constraint field; based on the node displacement constraint field, the boundary condition parameters of the welding simulation model are adaptively corrected; welding thermal elastic-plastic finite element calculation is performed by using the corrected simulation model, and a welding simulation result considering clamping deformation is output; the application eliminates systematic errors introduced due to the neglect of clamping deformation in traditional simulation, and significantly improves the accuracy of welding deformation prediction.

The application provides a double-mode interconnected driving simulation device of a liquid-gas combined tensioner, relates to the field of ocean engineering equipment testing, and comprises a translation mechanism, a rotation adjusting mechanism, a vertical movement and inclination simulation mechanism, a riser, a support and a combined tensioner mechanism. The application adopts a positive configuration of active control simulation at the bottom and passive response verification at the top. The device is sequentially composed of a bottom drilling platform translation mechanism, a rotation adjusting mechanism, a middle drilling platform vertical movement and inclination simulation mechanism, a top ring direct-acting liquid-gas combined tensioner at the top of a riser assembly and the like from bottom to top, so that the translation mechanism can simulate the horizontal drift movement of the ocean platform, the rotation adjusting mechanism can reproduce the yaw movement posture of the platform, the vertical movement and inclination simulation mechanism can simulate the inclination posture of the offshore platform under different sea conditions, and the combined tensioner mechanism can simulate the mechanical characteristics of the real wellhead connection of the tensioner.

The invention relates to a low-complexity broadband satellite communication multipath fading channel simulation system, which comprises an upper computer parameter configuration module and an FPGA (Field Programmable Gate Array) processing module, and is characterized in that the upper computer parameter configuration module is used for generating and issuing multipath fading channel parameter information according to a preset path channel scene; the FPGA processing module is used for receiving the multipath fading channel parameter information and executing multipath fading channel simulation; the FPGA processing module comprises a parameter processing module, a channel coefficient generation module, a multipath time delay module and a multipath superposition module. According to the system, FPGA resource consumption is greatly reduced, and inter-path statistical independence and simulation fidelity are improved.

The application provides a kind of shield tunnel joint toughness test reciprocating loading method and system, it is related to tunnel engineering test field, comprising: based on initial axial force to test piece is carried out reciprocating loading, obtains displacement, load, acoustic emission impact number and strain data in loading process, calculates stiffness degradation index, residual deformation index, acoustic emission damage index, strain concentration index and comprehensive damage index;According to the stiffness degradation index, residual deformation index, acoustic emission damage index, strain concentration index and comprehensive damage index, judge damage stage, according to damage stage calculates displacement amplitude and loading rate of next loading.The application introduces variable axial force coupling mode and variable rate step control, solves the problem that traditional constant parameter loading is difficult to match joint nonlinear damage evolution and seismic P-Delta effect, significantly improves the simulation reality and damage capture accuracy of test, provides reliable data support for shield tunnel joint toughness evaluation.

The application provides a four-cavity pressure simulation evaluation method with a capillary design kettle body, a platform and a wellbore. The kettle body is internally and externally provided with a tool pipe column, a packer rubber tube and a test casing, a capillary injection port is arranged on the upper end of the kettle body, and the capillary passes through the space between the test casing and the kettle body and is connected with the lower end of the test casing. The platform comprises the kettle body. The method is realized based on the kettle body. When the high-temperature and high-pressure downhole tool detection and evaluation is carried out, the strength of the test casing tooling is not additionally increased due to the limited structure, and the overall cost of the test is saved. After the four cavities are independently realized, the leakage of each cavity can be judged in the test process, and the test working condition of the downhole tool sample can be more accurately judged. The system pump injection pressurization efficiency is improved, and the detection precision and speed are improved. The internal cooling is realized at the same time as the pressure maintenance in the casing and outside the casing, and the interference on the test working condition during the cooling period is reduced.

The invention belongs to the crossing field of environmental functional materials and microbial technologies, and particularly relates to an LDHs-biological membrane solid-liquid interface culture method which comprises the following steps: S1, preparing an LDHs material; s2, constructing a standardized LDHs mineral membrane; s3, carrying out sterile treatment on the LDHs mineral membrane; and S4, carrying out solid-liquid interface culture on the LDHs-biological membrane. According to the method, the forming ability, metabolic activity, structural stability and pollutant removal characteristics of the LDHs material surface biological membrane can be effectively evaluated, and accurate and reliable evaluation is provided for deep exploration of a material-biological membrane interaction mechanism and promotion of application of the material-biological membrane interaction mechanism in environmental restoration.

The invention discloses a multi-mode first-aid teaching device for cardio-pulmonary resuscitation, and relates to the technical field of medical training. The simulation human body comprises a simulation human body, one end of the simulation human body is provided with a controller, one end of the simulation human body is provided with a positioning assembly, and one side of the controller is fixedly connected with a voice broadcast device. According to the application, firstly, the positioning assembly is matched with the controller and the voice broadcast device for use, so that the relative position of the visual-impaired patient and the dummy body is conveniently determined, the visual-impaired patient is guided to move to the side of the dummy body, and then the impact block is matched with the arc-shaped follower plate and the pressure sensor for use, so that the visual-impaired patient can be accurately positioned. The pressing deflection angle of the visual-impaired patient can be conveniently determined, the visual-impaired patient is guided to adjust the pressing angle through cooperative use of the first Bluetooth signal transmitter, the controller and the voice broadcast device, the visual-impaired patient can be conveniently guided to complete cardio-pulmonary resuscitation correct-angle pressing teaching on the simulated human body, and the success rate of out-of-hospital first aid of the visual-impaired patient is effectively increased.

The application provides a train running gear bearing fault real-time detection method and device and a train, which can be applied to the field of rail transit technology. The method comprises the following steps: acquiring a characteristic value of a real-time vibration acceleration signal of a train end running gear bearing; dynamically matching the characteristic value of the simulation vibration acceleration signal with the characteristic value of the real-time vibration acceleration signal to obtain a nonlinear relationship between the characteristic value of the real-time vibration acceleration signal and a test fault defect size; processing an estimated fault defect size obtained by inversion of the nonlinear relationship based on a fault displacement excitation, a bearing radial clearance and attribute parameters, real-time working condition parameters and a real-time load spectrum of the running gear bearing to obtain a vibration acceleration initial simulation signal, performing real-time transfer path analysis on the vibration acceleration initial simulation signal to obtain a vibration acceleration simulation signal; and performing real-time processing on the vibration acceleration simulation signal received by the train end to obtain a fault real-time detection result of the running gear bearing.

The application relates to the technical field of network security, and discloses a social simulator cognitive intervention method and system, which comprises the following steps: generating a group topology based on user interaction data of a real social network; dynamically adjusting the configuration proportion of an intelligent agent node based on an initial evaluation signal and a Bayesian optimization method; inferring the edge probability of each intelligent agent node in the group topology based on a probabilistic graph model, screening candidate intervention nodes according to the edge probability, and deploying intervention-type intelligent agent nodes based on the adjusted configuration proportion to implement intervention on the candidate intervention nodes; evaluating the intervention result to generate an evaluation signal, and feeding back the evaluation signal to the dynamic adjustment step to replace the initial evaluation signal. The application can effectively organize intervention subjects with different roles based on large-scale data of a complex network environment, dynamically optimize the delivery proportion, and simulate and predict the nodes to be intervened based on probabilistic graph reasoning.

The application discloses a sunlight flicker simulation device and a control method. The simulation device comprises a light source assembly, a modulation assembly and a control assembly. The light source assembly is used for emitting basic light simulating sunlight. The modulation assembly comprises a rack, a driving member and a rotating member. The driving member is fixed on the rack, and the rotating member is in transmission connection with the driving member. A through hole is formed in the radial surface of the rotating member. The rotating member rotates under the action of the driving member to adjust how much of the basic light passes through the through hole. The control assembly is electrically connected with the light source assembly and the driving member respectively. The application adopts a composite control mode of "mechanical modulation as the main part and light electronic modulation as the auxiliary part", realizes high-precision and high-realistic simulation of slow change and irregular flicker of sunlight, reduces the influence of electromagnetic interference, expands the frequency control range, simplifies the equipment modification process and improves the engineering practicability.

The present application relates to the technical field of solar cells, and particularly relates to a monitoring method for the passivation quality of a BC cell phosphorus diffusion considering RCA cleaning state; comprising the following steps: double-side alkali polishing is performed on a first type silicon substrate; after double-side deposition of amorphous silicon layer, second type element doping is performed, and acid washing is performed to remove glass body; then RCA cleaning is performed; after double-side deposition of amorphous silicon layer, first type element doping is performed to obtain a monitoring piece; the monitoring piece is detected, and the production line state is adjusted according to the monitoring result as needed; the monitoring method can consider the interference of RCA cleaning state in the actual production line, and is more in line with the actual process of phosphorus diffusion passivation monitoring process; the method result is accurate and reliable, and RCA interference caused by the mismatch of the monitoring piece structure is fundamentally eliminated, so that the final passivation quality test result can truly and accurately reflect the passivation level of the production line phosphorus diffusion process, and provide a reliable basis for accurate adjustment of process parameters.

The invention relates to the technical field of power system relay protection, and relates to a backup power automatic switching device verification platform and method based on a self-hold double-coil relay, and the platform comprises a circuit breaker simulation unit which comprises a closing coil and an opening coil; the control signal input interface is electrically connected with the closing coil and the opening coil and is used for receiving closing and opening control pulses output by the spare power automatic switching device to be verified; the state feedback output interface is electrically connected with a first state contact of the self-holding double-coil relay and is used for feeding back the opening and closing state of the simulated circuit breaker to the spare power automatic switching device to be verified; and the manual control loop is connected in parallel to a circuit of the closing coil and the opening coil, and is used for manually setting or resetting the circuit breaker simulation unit under the condition of being separated from the spare power automatic switching device. Through high-fidelity closed-loop simulation, linkage logic under various working conditions is completely reproduced, and the accuracy, depth and convenience of verification work are remarkably improved.

The invention discloses a three-dimensional camera model generation method based on a view cone, and the method comprises the steps: firstly constructing a view cone parameter system which comprises a model identifier, a position direction matrix, a field angle (FOV), a near / far cross section and an aspect ratio, achieving the precise positioning of the view cone in a three-dimensional space through a 4 * 4 homogeneous transformation matrix, and completing the generation of a view angle through the combination of a perspective projection matrix; and according to the physical characteristics and functional differences of the gun camera, the ball camera and the pan-tilt camera, the view cone parameters are bound with the equipment three-dimensional model, and fixed view angle matching (gun camera), dynamic rotation linkage (ball camera) and pan-tilt-camera cooperative control (pan-tilt) are realized. According to the method, the actual visual field of the camera can be accurately reproduced, the method is widely applied to scenes such as monitoring layout optimization and security dead angle investigation, the authenticity and application efficiency of equipment simulation in a three-dimensional space are improved, and dynamic interaction logic is provided for UI design of a three-dimensional scene through a bottom layer parameter system and matrix operation.