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391results about How to "Increase authenticity" patented technology

Underground chamber surrounding rock thermal-mechanical coupling fatigue phase field simulation method and system

The invention belongs to the technical field of geological energy storage, and particularly provides an underground chamber surrounding rock thermal-mechanical coupling fatigue phase field simulation method and system, and the method comprises the steps: building a phase field evolution equation through a phase field fracture model and a fatigue degradation function; on the basis of the calculation model, according to the air temperature and pressure in the cavern, the Newton heat exchange law is adopted to calculate cavern wall heat exchange, and a cavern wall heat conduction equation is constructed; on the basis of the calculation model, utilizing rock mass displacement and surrounding rock strain to construct a rock mass deformation equation; performing numerical discretization on the phase field evolution equation, the cave wall heat conduction equation and the rock mass deformation equation on a finite element grid unit, and performing thermal-mechanical coupling solution on all discretized equations through an iterative method to obtain evolution results of a temperature field, a stress field, a displacement field and a crack phase field of the underground chamber surrounding rock target area. According to the method, the phase field method is applied to thermal-mechanical coupling simulation of the underground gas storage chamber surrounding rock crack propagation condition, and the authenticity of chamber crack simulation is reflected to the maximum extent.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN) +3

Fault simulation method suitable for engineering simulation of electric vertical take-off and landing aircraft

The invention relates to a fault simulation method suitable for engineering simulation of an electric vertical take-off and landing aircraft. The method comprises the following steps: injecting a target fault into a target simulation model of a to-be-tested electric vertical take-off and landing aircraft; controlling a target fault signal to carry out cross-system transmission on a plurality of target airborne systems of the to-be-tested electric vertical take-off and landing aircraft; wherein the target fault signal is a signal triggered based on a target fault; injection data of the target faults and operation data in the cross-system transmission process are obtained so as to be used for evaluating fault responses of the multiple target airborne systems. Through the method and the device, high-fidelity matching of fault injection and an actual fault response scene is realized, and the consistency of fault responses of a plurality of target airborne systems is optimized, so that the authenticity of fault simulation and the effectiveness of fault response evaluation of an electric vertical take-off and landing aircraft jig machine are improved, and the high-fidelity requirement of semi-physical simulation is met.
Owner:SHANGHAI VOLANTE AVIATION TECH CO LTD

Server test environment guarantee method and system based on dynamic simulation

PendingCN121785869Aflexible constructionFlexible and dynamic managementVolume/mass flow measurementHardware monitoringServerComputer engineering
The invention discloses a server test environment guarantee method and system based on dynamic simulation, a storage medium and computer equipment. The method comprises the steps that the air inlet temperature, real-time power consumption and heat dissipation strategy signals of a tested server and the actual environment temperature of an incubator are collected in real time; dynamically setting the temperature of the air inlet of the tested server as the target environment temperature of the incubator, and calculating the real-time temperature deviation between the actual environment temperature and the target environment temperature; if the real-time temperature deviation exceeds a preset threshold value, a dynamic PID control algorithm is triggered, a basic control quantity is obtained through calculation according to the real-time temperature deviation through the dynamic PID control algorithm, a dynamic compensation quantity is obtained through calculation according to the target environment temperature, the real-time power consumption and the heat dissipation strategy signal, and the heat dissipation strategy signal is obtained based on the basic control quantity and the dynamic compensation quantity. Generating a temperature control instruction of the incubator; according to the temperature control instruction, a refrigerating or heating device of the incubator is dynamically adjusted so as to guarantee the test environment of the tested server.
Owner:NINGCHANG INFORMATION TECH (HANGZHOU) CO LTD

Question and answer processing method, device and equipment, computer readable storage medium and computer program product

The invention provides a question and answer processing method, device and equipment, a computer readable storage medium and a computer program product. The method comprises the steps of executing vector semantic retrieval in a vector database set of each target knowledge base to obtain a first candidate result set, and executing keyword retrieval in each target knowledge base to obtain a second candidate result set; fusing the first candidate result set and the second candidate result set to obtain single-library candidate result sets corresponding to the target knowledge bases, and merging all the single-library candidate result sets to obtain a global candidate result set; sorting the global candidate result set to obtain a global sorting result set; selecting a target number of candidate results from the global sorting result set to obtain a final sorting result set; and generating answers based on the final sorting result set by using a large language model. Through the method, the authenticity and reliability of the intelligent question-answering result can be improved, and a solid data support is provided for intelligent question-answering service.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD

Scale and structure consistency image generation method fusing three-dimensional geometric prior

The invention discloses a scale and structure consistency image generation method fusing three-dimensional geometric prior, and belongs to the technical field of computer vision and image generation. The method comprises the following steps: acquiring a scene image and depth information corresponding to the scene image, reconstructing a scene point cloud containing pixel space coordinates and color information, acquiring a colored point cloud of an object to be inserted, placing the colored point cloud at a specified position of the scene through rigid body transformation, and unifying a coordinate system with the scene point cloud; projecting the transformed object point cloud to an image plane through a camera model, determining a visible point according to the depth, and constructing an insertion region mask to remove pixels of a region corresponding to a scene; then constructing a multi-channel geometric structure priori graph containing color, depth and other information, and splicing the multi-channel geometric structure priori graph with the cleared scene image to form a diffusion type generation model input; and finally, generating an image under geometric prior guidance, ensuring that the inserted object is consistent with the original scene in the aspects of position, scale, perspective and the like, solving the problem of insufficient geometric consistency of the existing method, and realizing image content insertion with an accurate structure and real vision.
Owner:SUN YAT SEN UNIV

A vectorization reverse construction method of inventory building indoor structure scene

The application provides a vectorization reverse construction method of an existing building indoor structure scene, and relates to the field of data processing. In the method, laser point cloud data and panoramic image sequences are synchronously acquired, and building structure semantics are extracted by image semantic segmentation. The image semantics are robustly migrated to the point cloud to form structure semantic point clouds. On the basis of eliminating non-building structure elements, a structure point cloud skeleton is constructed, and virtual placeholder point clouds are generated for open structures such as doorways and window openings. Then, continuous structure geometry is recovered by combining voxelization blocking completion and a three-dimensional convolution completion network. Finally, a three-dimensional structure grid model binding structure semantics is generated, and a two-dimensional structure vector drawing meeting engineering drawing rules is obtained by projection vectorization. The technical solution provided by the application facilitates improving the accuracy of the vectorization reverse construction of the existing building indoor structure scene.
Owner:WUHAN UNIV +1

A method and system for information distribution based on geographic fence and unified reputation evaluation

PendingCN122513466AAchieve independent flowreduce consumption
The application discloses an information distribution method and system based on a geographic fence and unified credit evaluation, and belongs to the technical field of big data processing. A user publishes business event information in a same account, and independently sets a geographic fence and a receiver credit threshold value; the system determines a second user currently located in the geographic fence and having a credit score not lower than the threshold value, and pushes the information; in response to an acceptance operation of the second user, an interaction relationship between the two parties is established; and in response to a mutual evaluation result after the interaction ends, credit scores of the two parties are dynamically adjusted. Through user-defined distribution conditions, platform implementable auditing and mutual evaluation credit systems, the application breaks the double barriers of traditional socialization and algorithm recommendation, realizes directional, efficient and credible distribution of information, and reduces consumption of network resources and server resources caused by invalid information transmission.
Owner:ZHEJIANG TIANLI NETWORK TECH CO LTD

A method and system for continuous adjustment of a concrete autoclaving process with temperature gradient feedback

This invention relates to the field of concrete process temperature control technology, and discloses a method and system for continuous regulation of the concrete steam curing process based on temperature gradient feedback. The method includes: constructing a steam curing temperature time-series dataset; reconstructing the temperature field inside the steam curing kiln; compensating for ambient temperature on the original temperature measurement data of the component surface; forming a steam regulating valve opening control sequence; and performing online parameter correction. Compared to existing technologies that directly use the component surface temperature measurement value as the steam valve regulation feedback, this invention addresses the technical problem of failing to obtain an effective surface temperature gradient reflecting the component's hydration heat release state, especially under conditions of uneven steam injection and localized heat dissipation differences within the steam curing kiln. This application improves the accuracy of temperature gradient feedback control during the concrete steam curing process by reconstructing the temperature field inside the steam curing kiln and incorporating the estimated ambient temperature at the component surface measurement points into the surface temperature compensation and differential gradient calculation process.
Owner:PIZHOU YUANTONG COMMERCIAL CONCRETE CO LTD

Dynamic performance testing device and method for electromagnetic shielding cabinet

The invention relates to the technical field of electromagnetic shielding cabinet testing, in particular to a dynamic performance testing device and method for an electromagnetic shielding cabinet, and the device comprises an environment testing cabin which is used for placing a to-be-tested cabinet and providing a controlled electromagnetic background environment; the dynamic load simulation system is mechanically connected with the to-be-tested cabinet and is used for applying physical excitation with preset strength to the to-be-tested cabinet so as to simulate structural deformation of the to-be-tested cabinet in a working state; and the signal transmitting system comprises a transmitting antenna arranged outside the to-be-tested cabinet and is used for generating an electromagnetic signal covering a preset frequency band. The dynamic load simulation system simulates vibration, cabinet door opening and closing and other actual dynamic working conditions, the temperature and humidity adjusting module is combined to simulate different climatic environments, meanwhile, the high-speed synchronous triggering module is used for achieving high-precision synchronization of dynamic load applying, electromagnetic signal transmitting and data collecting, multi-working-condition collaborative simulation and precise synchronous testing are achieved, and the testing efficiency is improved. And the authenticity and the reference value of a test result are greatly improved.
Owner:CHANGZHOU HENGLI ELECTROMAGNETIC SHIELDING EQUIP CO LTD

A large model and test simulation tool-based combined test method and system

A kind of test method based on the combination of large model and test simulation tool, for testing input file, the method comprises the following steps: S1, receiving interface description document and interface request message, and performing check to input file;S2, interface description document and interface request message are parameterized, and interface parameter configuration is generated;S3, according to interface parameter configuration and test target, intelligent generation simulation response content;S4, interface parameter configuration, response message and simulation scene generated are loaded to test simulation engine, and test simulation engine generates or matches corresponding response according to configuration, and returns to the output end of the file to be tested;And a kind of system based on large model and test simulation tool, the present application has the advantages of flexibility and coverage.
Owner:SICHUAN RURAL COMMERCIAL UNITED BANK CO LTD

Passing control method, device, equipment and storage medium

This application provides a passing control method, apparatus, device, and storage medium. The method includes: responding to a passing command for a virtual sphere in a game scene; obtaining the passing direction corresponding to the passing command; determining a passing virtual object from multiple cooperating virtual objects in the team of the controlled virtual object based on the passing direction; determining a passing point based on the obtained movement direction of the passing virtual object; and controlling the virtual sphere to move towards the passing point so that the passing virtual object receives the ball at the passing point. This application considers various passing scenarios, and can determine the passing virtual object and passing point based on the passing command, controlling the virtual sphere to move towards the passing point so that the passing virtual object receives the ball at the passing point, thus enhancing the realism of the passing virtual object and passing point and improving the gaming experience.
Owner:NETEASE (HANGZHOU) NETWORK CO LTD

A high-speed wind tunnel slice water-cooled hinge torque balance measuring system

The application provides a high-hypersonic wind tunnel piece water-cooled hinge torque balance measurement system and belongs to the technical field of wind tunnel test measurement.The application aims to solve the problem that the rudder surface is difficult to be externally cooled due to thin structure and the hinge torque is difficult to be measured in the prior art.The aircraft fuselage is connected with the aircraft wing and the piece water-cooled hinge torque balance in the application.The top and bottom of the piece water-cooled hinge torque balance are respectively provided with a balance upper cover plate and a balance lower cover plate.The upper end surface of the balance lower cover plate is flush with the aircraft fuselage.The balance free end, the balance measurement element and the fuselage mounting base of the piece water-cooled hinge torque balance are sequentially connected.The balance free end is connected with the measured rudder surface through an angle ear.The balance measurement element is pasted with a strain gauge, and the balance measurement element is internally provided with a water-cooled groove circuit.The application solves the problem that the measurement precision is greatly reduced due to high temperature in the high-hypersonic wind tunnel test, and the rudder surface is difficult to be externally cooled due to thin structure and the hinge torque is difficult to be measured.
Owner:AVIC SHENYANG AERODYNAMICS RES INST

Intelligent testing method and system for fracturing proppant conductivity

This invention relates to the field of oil and gas field development technology, and discloses an intelligent testing method and system for the flow conductivity of fracturing proppant. The method includes: Step S1, constructing a simulated fracture unit; Step S2, filling the simulated fracture unit with a target fracturing proppant; Step S3, applying multi-level closure stress to the filled simulated fracture unit; Step S4, during the application of each level of closure stress, real-time acquisition of fluid dynamic data flowing through the simulated fracture unit; Step S5, calculating the real-time flow conductivity of the proppant based on the fluid dynamic data; Step S6, after applying each level of closure stress, calculating the breakage rate of the proppant in real-time through image analysis; Step S7, correcting the real-time flow conductivity calculated in Step S5 based on the breakage rate to obtain a corrected flow conductivity; Step S8, outputting the test results based on the corrected flow conductivity.
Owner:KARAMAY BAIJIANTAN DISTRICT (KARAMAY HIGH TECH ZONE) PETROLEUM ENG FIELD (PILOT) LAB

Embedded wireless sensing test wafer

The embedded wireless sensing test wafer is characterized in that the embedded wireless sensing test wafer comprises an upper silicon wafer, a lower silicon wafer and a circuit board, the upper silicon wafer and the lower silicon wafer are clamped on the two sides of the circuit board, the surfaces, facing the circuit board, of the upper silicon wafer and the lower silicon wafer are subjected to laser engraving or mechanical fine carving to form containing grooves, and the circuit board is embedded in the containing grooves; the thickness of the upper silicon wafer is 0.7-0.9 mm, the thickness of the lower silicon wafer is 0.3-0.4 mm, and the overall total thickness of the upper silicon wafer and the lower silicon wafer clamping the circuit board is smaller than or equal to 1.2 mm. The thickness similar to that of an actually produced wafer is realized, the authenticity of measurement is improved, the internal stress of the wafer is effectively eliminated by the heat treatment process, the reliability of a product is improved, the service life of the product is prolonged, the risk of processing fragments is reduced by the overall processing process, and the production cost is reduced.
Owner:FOSHAN RUILEBAIDE AUTOMATION EQUIP CO LTD

Ablation needle puncture training auxiliary system

The invention relates to the technical field of medical simulation, in particular to an ablation needle puncture training auxiliary system, and aims to solve the problems of insufficient tactile feedback and low fineness when an existing ablation needle puncture training system simulates a needle tip to penetrate through multiple layers of biological tissues so as to improve the'needle feeling 'cognition and fine operation skills of doctors. The system is characterized by comprising a physical interaction module, a virtual simulation module, a central processing module and a visual presentation module, a high-fidelity virtual tissue model is constructed, real-time multi-mode tactile feedback is combined, and an accurate needle-tissue interaction mechanical simulation and multi-dimensional tactile rendering algorithm is adopted. By the adoption of the technical scheme, the problem of a touch gap is effectively solved, the authenticity and effectiveness of simulation training are improved, and the precision and safety of clinical puncture operation are remarkably improved.
Owner:THE FIRST AFFILIATED HOSPITAL OF MEDICAL COLLEGE OF XIAN JIAOTONG UNIV

Anonymous counting device

The utility model discloses an anonymous ticket counting device which comprises a machine frame, a ticket collecting assembly and a ticket counting assembly. The ticket collecting assembly comprises a voting opening, an inclined slide way and a ticket locking module, the voting opening is formed in the surface of the rack, the inclined slide way is arranged in the storage bin, the upper end of the inclined slide way is connected to the voting opening, the ticket locking module is detachably connected with the storage bin and comprises a lock, and the lock is used for locking the ticket locking module and the storage bin; the ticket counting assembly comprises a reading module and a logic calculation module, the reading module is arranged on one side of the inclined slide way, and the logic calculation module is electrically connected with the reading module. According to the utility model, the cashier property of counting can be improved, and anonymous counting is realized.
Owner:GUANGDONG TOBACOO JIANGMEN CO LTD

Virtual Cloud Model Processing Method, Device and Computer Equipment

The present application provides a method, apparatus, and computer device for processing a virtual cloud model, belonging to the field of computer technology. The method includes: generating a cloud texture material according to the position information of an initial rendering model in the virtual scene and a preset moving speed; assigning the cloud texture material to the initial rendering model to obtain and display a virtual cloud model; determining an area to be adjusted and adjustment parameters of the virtual cloud model according to the position information of the virtual cloud model and the distance fields of the candidate virtual objects, where the adjustment parameters include: an offset intensity and an offset direction of the area to be adjusted; adjusting the area to be adjusted of the virtual cloud model according to the adjustment parameters to obtain and display the processed virtual cloud model. The present application can reduce the repetition degree and patchiness of the virtual cloud layer, improve the authenticity of the virtual cloud layer, and thus improve the display effect of the virtual cloud layer.
Owner:NETEASE (HANGZHOU) NETWORK CO LTD

A method and device for evaluating influence effect of an academic recommendation algorithm based on a social robot

A method and device for evaluating the influence effect of an academic recommendation algorithm based on a social robot, the method comprising: collecting academic papers, citation relationships and author information through a data interface or a web crawler, and screening target personnel data according to a research field; constructing a virtual social robot and establishing a research interest vector of the virtual social robot based on historical literature and research theme information of the target personnel; presetting multiple literature acquisition strategies for the social robot to form differentiated experimental conditions; controlling the social robot to perform operations such as paper retrieval, access and click recommendation on an academic platform, and recording literature access paths, recommendation results and browsing sequence data in real time; calculating the research theme distribution of the social robot according to a literature set contacted in the experiment, and comparing the research theme distribution with the initial research interest, so as to obtain the change degree of the research direction; and comparing the change results of the research direction of the social robot under different strategies, and quantitatively evaluating the influence degree of the recommendation system on the research direction evolution of the scientific researchers.
Owner:ZHEJIANG UNIV OF TECH

Three-dimensional downscaling wind field two-stage super-resolution reconstruction method and system for complex terrain bridge site

PendingCN122288985AMeet demanding needsincrease authenticityComputational scienceTerrain
This invention proposes a two-stage super-resolution reconstruction method and system for three-dimensional downscaled wind fields in bridge sites with complex terrain. First, the invention utilizes a WRF model and explicitly enables large eddy simulation to construct a high-fidelity training set. To build a spatially three-dimensional reconstruction result, the invention extracts dynamic meteorological sequences and static geographical features for different feature height layers. After filtering out invalid regions using a mountain occlusion mask matrix, three parallel cascaded reconstruction models are independently trained to significantly improve the real-time performance of data acquisition. The model training innovatively integrates terrain-forced physical loss and frequency domain energy constraints. Finally, the two-dimensional reconstruction results from each height layer are combined in vertical space to construct a high-precision three-dimensional microscale meteorological field ensemble, providing reliable technical support for three-dimensional wind energy resource assessment and bridge health monitoring in complex terrain.
Owner:HARBIN INST OF TECH

A Method and System for Training Neurosurgical Specialist Nurses Based on Virtual Teaching and Research Offices

This application relates to a method and system for training neurosurgical specialist nurses based on a virtual teaching and research room. The method includes: acquiring patient data and clinical scenario parameters corresponding to preset neurosurgical training tasks from a medical database; constructing a virtual training environment using virtual simulation technology based on the patient data and clinical scenario parameters; collecting user interaction behavior data in real time through a sensor network deployed in the environment; analyzing the behavior data in real time and driving the virtual environment to generate real-time feedback effects; identifying key operation points using a pre-trained LSTM analysis model based on the behavior data and feedback effects; and generating a training feedback report based on the key operation points. This method can improve the realism of neurosurgical specialist nurses' operations in the virtual environment, the assessability of the training process, and the real-time nature of feedback, effectively assisting in professional skills training and assessment.
Owner:NANJING UNIV OF TRADITIONAL CHINESE MEDICINE

CAN signal fault injection function safety test device based on vehicle integration

PendingCN121956967Aincrease authenticityImprove the value of engineering guidanceElectric testing/monitoringElectronic systemsSafety testing
The invention relates to the technical field of automobile electronic system detection, in particular to a CAN signal fault injection function safety test device based on vehicle integration. Comprising an operation table and a test control board, and the operation table comprises a fault configuration module and an operation display module; the fault configuration module is used for configuring a CAN model fault type to be injected into the tested ECU and a fault injection object; the operation display module is used for sending a fault triggering instruction to the test control panel and receiving and displaying a test result; the test control panel comprises a two-way CAN interface module, a fault injection module, a safety monitoring module and a timing processing module. The two-way CAN interface module comprises a first CAN interface and a second CAN interface, the first CAN interface is used for being connected with a whole vehicle CAN network, and the second CAN interface is used for being connected with a tested ECU; and the fault injection module is used for forwarding a CAN message received by the whole vehicle CAN network through the first CAN interface to the tested ECU through the second CAN interface when the fault-free trigger instruction is yes, and executing corresponding fault injection operation on the CAN message in the forwarding process according to the configured fault type and the fault injection object when the fault trigger instruction is received.
Owner:CHINA RECOGNITION VEHICLE NETWORKING TECH SERVICE (SHENZHEN) CO LTD +2

Facility horticulture intelligent production practical training system and method based on digital twinning

This invention discloses a smart production training system and method for facility horticulture based on digital twins, belonging to the field of smart production training technology. It includes: a smart horticulture production training module, a virtual twin module, a smart control module, and a training and intelligent evaluation module. The invention uses the smart horticulture production training module to collect environmental, equipment, and crop growth data and execute control commands; the virtual twin module constructs a one-to-one mapped virtual three-dimensional scene, realizing real-time virtual-real mapping between physical entities and the virtual scene; the smart control module generates control strategies based on simulated data and training conditions and issues control commands; the training and intelligent evaluation module provides operation guidance, visual display, data recording, and automated scoring and comprehensive evaluation, improving the safety of smart production training in facility horticulture and solving the problems of low safety in existing technologies due to long cycles, high costs, slow rotation, and high risks.
Owner:BEIJING VOCATIONAL COLLEGE OF AGRICULTURE (PARTY SCHOOL OF RURAL WORK COMMITTEE OF BEIJING MUNICIPAL COMMITTEE OF THE COMMUNIST PARTY OF CHINA)

Distributed ground simulation method for mars aerodynamic assisted deorbit

A distributed ground simulation method for aerodynamically assisted Mars orbit descent belongs to the field of spacecraft system simulation. It employs a database to store aerodynamic data under high, medium, and low lift-to-drag ratio scenarios, covering the entire Martian flight path, thus having a wide applicability to various spacecraft types and strong universality. The method uses the principle of similarity equivalence to equivalence the spacecraft model, improving the realism of the ground simulation. By establishing a random disturbance model and adding random disturbance signals to the control system, it simulates disturbances in the real environment, more closely approximating the actual spacecraft environment and improving adaptability to complex dynamic environments. This invention is applicable to the field of spacecraft system simulation. By establishing a dynamic model, applying the principle of similarity equivalence, and designing a distributed data transmission framework, it realizes distributed ground simulation of aerodynamically assisted Mars orbit descent, improving the simulation's universality and anti-interference capability, and enhancing the safety of Mars orbit descent.
Owner:BEIJING INST OF TECH

Flame Imitation Manufacturing Device of an Electrical-Heated Fireplace

A flame imitation manufacturing device of a fireplace relates to a flame imitation manufacturing device for simulating the burning state in a fireplace in the field of household appliances. Said device comprises a housing, a cross flow fan and a light source mounted on a base plate of the housing, a simulated fire chamber mounted on a back plate of the housing, ribbons mounted on the back plate of the housing by means of upper and lower strip bars and above the cross flow fan, and a light-transmitting glass plate mounted on the housing and in front of said ribbons. This invention, characterized in that said cross flow fan is a swinging one, is advantageous in that supplying wind non-directively by utilizing the swinging of said fan improves the flying state of ribbons so as to make the image state of burning flames more vivid, greatly enhances the authenticity of flames and lowers the cost thereof, and thus is adaptable to various flame imitation electrical-heated fireplaces and electrical appliances.
Owner:WANG ZHUHONG

Satellite attitude control method with flexible solar wing and related device

PendingCN122519546AFlexible vibration attenuationincrease authenticity
This invention discloses a satellite attitude control method and related equipment equipped with a flexible solar array, relating to the field of satellite attitude control technology. By utilizing measurement data from a microelectromechanical inertial measurement unit (MEMS) and image data from a camera during the deployment of the flexible solar array, the fundamental frequency parameters of the flexible solar array are calculated in orbit, eliminating reliance on ground simulations and ground modal tests for obtaining these parameters. Based on the in-orbit measured fundamental frequency parameters, the filter time constant is calculated, and the filter parameters of the attitude controller are updated in orbit, enabling bandwidth isolation control to effectively attenuate the flexible solar array's flexural vibrations according to the actual structural characteristics. The PID parameters and controller compensation parameters are updated in orbit to match the attitude controller parameters with the in-orbit measured fundamental frequency parameters of the flexible solar array. Simultaneously, a disturbance compensation torque feedforward related to the angle of the two-dimensional SADA drive shaft is introduced, improving the satellite's attitude control accuracy and stability under the rotation of the flexible solar array and space environment disturbances.
Owner:JIANGSU GUOYU STARRY SKY TECHNOLOGY CO LTD

A power transmission line fault simulation and simulation test method and system

A power transmission line fault simulation and simulation test method and system, a transient simulation model of an actual power transmission line is established, and a wave speed is simulated and calculated; a simulation test is carried out on a test line, a fault source is output, a normal current at a power frequency is first output, a lightning impulse is injected at a peak of the normal current at the power frequency, and then a flashover discharge current of an insulator string is output, a duration of the flashover discharge current is calculated according to a lightning fault current set during simulation; if the test is normal, wave head times captured by two fault detection devices are obtained, corresponding two positioning errors are calculated in combination with the wave speed calculated by simulation, if the positioning errors exceed a set error threshold, it is indicated that the fault detection device is unqualified; otherwise, it is qualified, and a fault test is carried out by using the qualified fault detection device. The present application can efficiently carry out a detection test of a power transmission line fault positioning device.
Owner:WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST

Three-point method ground resistance intelligent test method and system based on electrical explosion-proof environment

The invention discloses a three-point method ground resistance intelligent test method and system based on an electrical explosion-proof environment, and relates to the technical field of resistance intelligent test. The method comprises the following steps: acquiring electrical environment characteristic data of an electrical explosion-proof environment, adjusting a resistance intelligent test parameter according to the electrical environment characteristic data to obtain an adjusted resistance intelligent test parameter, and executing a grounding resistance intelligent test according to the adjusted resistance intelligent test parameter. The method comprises the following steps: monitoring measurement characteristic data of a grounding resistance intelligent test in a grounding resistance intelligent test process, analyzing to obtain measurement stability information of the grounding resistance intelligent test according to the measurement characteristic data of the grounding resistance intelligent test, and executing grounding resistance intelligent test condition verification optimization according to the measurement stability information of the grounding resistance intelligent test. Therefore, the accuracy and the reliability of the intelligent test of the grounding resistance are improved.
Owner:JIANGSU ACAD OF SAFETY PROD SCI

A protective sleeve testing method and testing apparatus

The application relates to the technical field of testing, and particularly discloses a protective sleeve testing method and testing equipment. The protective sleeve testing method comprises the following steps: determining a position, at which a pressing part of an inner pressing head replacing a mobile phone key is flush with a side wall of a mobile phone model, as an alignment position and a standard position; retracting the inner pressing head to a first zero position; sleeving a mobile phone protective sleeve on the mobile phone model; moving the inner pressing head outward and detecting pressure received by the inner pressing head in real time; when the pressure reaches a contact pressure value, recording a moving distance of the inner pressing head and recording the pressure received by the inner pressing head when the inner pressing head is located at the alignment position; judging whether the inner pressing head reaches the standard position; if yes, recording the pressure received by the inner pressing head when the inner pressing head reaches the standard position; otherwise, the inner pressing head continues to move outward to the standard position and the pressure received by the inner pressing head is recorded. The method improves the authenticity of detection and the reliability of detection results.
Owner:BOZHON PRECISION IND TECH CO LTD

A Data Fusion-Based Insulation Status Assessment Method and System for Medium and High Voltage Switchgear

ActiveCN122193907Bincrease authenticityStrong attribution
This invention relates to the field of power equipment monitoring technology, and discloses a method and system for assessing the insulation status of medium and high voltage switchgear based on data fusion. The method includes: collecting partial discharge pulse data, slowly changing state data, and reference environmental data for each assessment zone; performing time-series correlation processing on the partial discharge pulse data to obtain transient candidate events; and conducting a first-stage judgment based on temporal proximity, spatial consistency, propagation order, and phase convergence to obtain co-source discharge events and source assessment zones; retrieving slowly changing state data and performing delayed closure processing; conducting a second-stage judgment on the processing results to obtain valid degradation events; and performing zoned sequence analysis on the valid degradation events to obtain degradation evolution results; and outputting the insulation status assessment results of the source assessment zones based on the degradation evolution results. This application improves the accuracy, stability, and targeted maintenance of insulation status assessment and graded early warning.
Owner:BEIJING GUANGFA ELECTRIC CO LTD

Force sensing and tactile feedback integrated intelligent capsulorhexis system

The invention discloses a force sensing and tactile feedback integrated intelligent capsulorhexis system, and relates to the technical field of force sensing and tactile feedback. The system comprises a force sensing module, a central control module, a tactile feedback module, a position control module and a capsulorhexis operation module. Multi-dimensional contact force signals of the end effector and the lens capsule are collected in real time, the central control module generates force feedback and position adjusting instructions accordingly, the tactile feedback module converts the force signals into perceptible tactile feedback, and the position control module cooperatively regulates and controls the instrument position and applied force to adjust the position of the lens capsule. Finally, the operation action is completed by the capsulorhexis operation module, so that the environmental adaptability of the force sensing and tactile feedback integrated intelligent capsulorhexis is improved; the problem that due to insufficient inherent sampling frequency and lack of intelligent self-adaptive capacity, the environment adaptability of force sensing and tactile feedback integrated intelligent capsulorhexis is low exists.
Owner:SHANGHAI EAST HOSPITAL EAST HOSPITAL TONGJI UNIV SCHOOL OF MEDICINE