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44results about How to "Verify reliability" patented technology

Halide electrolyte, preparation method and solid-state battery

The invention relates to the field of solid-state batteries, in particular to a halide electrolyte, a preparation method and a solid-state battery. The halide electrolyte comprises a tin element, and the chemical formula of the halide electrolyte is Li2Zr < 1-x > Sn < x > Cl < 6-4x > O < 2x >, and x is less than or equal to 0.3. Through tin-oxygen co-doping, force is exerted at the same time from the two aspects of crystal structure (bulk phase) and interface chemistry, the key problems of ionic conductivity, electrochemical stability, interface compatibility and the like are cooperatively solved, the cost and the process are perfectly considered, and an all-solid-state battery electrolyte solution with a great commercialization prospect is provided.
Owner:ZHEJIANG INTELLIGENT TRANSPORTATION TECHNOLOGY INNOVATION CENTER +1

BD-RIS-based auxiliary satellite RSMA system safety performance improvement method

The invention relates to a BD-RIS-based auxiliary satellite RSMA system safety performance improvement method. The method comprises the following steps of: decomposing information to be transmitted into a public stream and a private stream by using an RSMA technology according to a cascade channel coefficient from a satellite to a legal user and an illegal node, and calculating a receiving signal-to-noise ratio of the two parties so as to obtain a public stream communication rate and a private stream communication rate of the legal user and an eavesdropping rate of an eavesdropper. And constructing a target function according to the rates, and establishing a BD-RIS reflection coefficient and satellite emission beamforming vector optimization model in combination with a preset loss function. And solving by adopting a double-circulation PDD algorithm, splitting the problem through a BCD method, processing non-convexity through SCA, firstly relaxing symmetric unitary constraint of a reflection coefficient matrix, and then projecting to obtain an optimized vector and matrix. By adopting the method to calculate the system security transmission rate, the security performance is enhanced.
Owner:NAT UNIV OF DEFENSE TECH

A bimetallic nanocluster fluorescent probe compound and application thereof in preparation of a product for rapidly detecting acetylene

PendingCN122500188ADefine controllable preparation processesStable fluorescence lifetimeFluoProbesFluorescent quenching
The application belongs to the technical field of fluorescent probe detection, and discloses a bimetallic nanocluster fluorescent probe compound and application thereof in preparation of a product for rapidly detecting acetylene. The fluorescent probe compound is a gold-copper bimetallic nanocluster solution modified by adamantane thiol, which is used as a fluorescent probe for acetylene detection. The solution has a clear and controllable preparation process. Through specific proportioning and reaction conditions of cuprous chloride, adamantane thiol, tetrachloroauric acid, sodium borohydride and other reagents, a probe solution with stable fluorescence characteristics can be prepared. The bimetallic nanocluster fluorescent probe compound is applied in preparation of a product for rapidly detecting acetylene. Through specific combination of fluorescent molecules and acetylene gas to trigger the secondary effect of fluorescence quenching, detection is realized, and other substances cannot trigger quenching. At a wavelength of 700 nm, the linear relationship (R 2 >0.99) between the fluorescence intensity and the acetylene concentration realizes accurate quantification of the acetylene concentration, and the minimum detection limit is 0.026 muL / L.
Owner:SOUTHWEST UNIVERSITY FOR NATIONALITIES

Anti-static and anti-abnormal-sound coating for durable automobile sealing strip and preparation method of anti-static and anti-abnormal-sound coating

The invention discloses an anti-static and anti-abnormal-sound coating for a durable automobile sealing strip and a preparation method of the anti-static and anti-abnormal-sound coating in the field of functional coating materials. The coating is prepared from hydroxy acrylic resin, two special functional fillers, auxiliaries and a solvent. Wherein the vinyl functionalized polypyrrole-silver nanowire hybrid conductive fiber provides a lasting static dissipation path, and the epoxy siloxane grafted perfluoropolyether solid lubricating particles provide long-acting lubrication through chemical bonding so as to eliminate abnormal sound. When the coating is prepared, the resin and the adhesion promoter are dissolved in the mixed solvent to form a resin liquid, then the two functional fillers and the lubricating additive are added after being pre-dispersed, and finally the mixture and the cross-linking agent are mixed and cured. The coating is firmly attached to the surface of the sealing strip through chemical bonding and endows the sealing strip with stable and lasting anti-static, noise-reducing and wear-resisting performance, and the process is simple and convenient and suitable for large-scale production.
Owner:SHANDONG JUNANG NEW MATERIAL TECH CO LTD

SERS (Surface Enhanced Raman Scattering) flexible sensor based on dual-ion modification as well as preparation method and application thereof

PendingCN121954838Ahigh selectivityhigh sensitivityRaman scatteringIonophoric ActivityKynurenic acid
The invention discloses an SERS (Surface Enhanced Raman Scattering) flexible sensor based on dual-ion modification as well as a preparation method and application of the SERS flexible sensor, and belongs to the technical field of biomedical detection. A bacterial cellulose membrane (BCM) is used as a base material, cation modification (QBCM) is carried out through glycidyl trimethyl ammonium chloride (EPTMAC), anion modification (TABCM) is carried out through tannic acid (TA), a functional substrate with asymmetric charge distribution and a porous structure is constructed, then Ag NPs are loaded on the modified base material through an in-situ reduction method, the QBCM-coated AgNPs and TABCM-coated AgNPs dual-ion active substrate is formed, and the AgNPs / TABCM-coated AgNPs dual-ion active substrate is used for preparing the composite material. The SERS flexible sensor is integrated through a layer-by-layer self-assembly (LbL) technology; the SERS flexible sensor can realize specific enrichment and synchronous detection of anionic kynurenic acid (KYNA) and cationic spermine (Spm) in urine, and is low in detection limit and good in reproducibility.
Owner:FUJIAN NORMAL UNIV

Direct-current fan and serialization design method

PendingCN121959776AGuaranteed versatilityEnsure the initial universal electromagnetic structure is universalCAD customisation/personalisationGeometric CADMechanical engineeringElectromagnetic simulation
The invention relates to the technical field of direct-current fans, and discloses a direct-current fan and a serialization design method.According to the direct-current fan and the serialization design method, general electromagnetic structure design of a series of direct-current fans is conducted through electromagnetic simulation optimization, magnetic steel surface magnetism is analyzed through a static magnetic field to determine the magnetic steel machining magnetizing inspection standard, and a boss in a shaft sleeve is adopted for replacing a clamping ring for limiting; a low-cost and standardized direct-current fan series structure is formed, and only the required performance output corresponding to the number of turns of the winding needs to be adjusted, so that low-cost and quick-response series product development is realized.
Owner:AVIC SHENYANG XINGHUA AREO ELECTRIC APPLIANCE CO LTD

Device and method for testing temperature dissipation rate of asphalt concrete panel under strong wind environment

ActiveCN119688778BComprehensive understanding of the effects of temperature lossSimple structureMaterial heat developmentPreparing sample for investigation
The application discloses a kind of asphalt concrete panel temperature dissipation rate testing device and method under big wind environment, device includes simulation test device and in-situ testing device;Method includes the following steps: one, pours asphalt concrete test block;Two, adjust temperature compensator;Three, set up big wind environment;Four, acquisition asphalt concrete test block during the formation process multiple sets of key parameters;Five, change big wind environment and obtain multiple sets of key parameters;Six, obtain multiple sets of key parameters in the formation process of asphalt concrete test block under a variety of different big wind environment;Seven, fitting temperature dissipation rate calculation model of the asphalt concrete type required in construction site;Eight, cast in place asphalt concrete panel and pre-embed multiple third temperature sensors located at different heights;Nine, using in-situ testing device to test asphalt concrete panel temperature dissipation rate under the big wind environment of field. Obtain temperature dissipation rate by fitting temperature dissipation rate calculation model, provide technical support for asphalt concrete temperature control and crack prevention.
Owner:SINOHYRDO ENG BUREAU 3 CO LTD +1

A rapid testing device for rock deformation parameters

This utility model discloses a rapid testing device for rock deformation parameters, comprising a protective shell, one end of which is connected to the drill pipe and the other end to the drill bit. A power supply module, a resistance strain gauge group, a deformation parameter testing module, and a wireless transmission module are installed inside the protective shell. The power supply module provides power to the resistance strain gauge group, the deformation parameter testing module, and the wireless transmission module. The internal power supply line connecting the power supply module and the resistance strain gauge group is connected to the deformation parameter testing module via a signal transmission line. The deformation parameter testing module is electrically connected to the wireless transmission module. This utility model, by deploying resistance strain gauges, the deformation parameter testing module, and the wireless transmission module, monitors the strain signal generated by the interaction between the drilling equipment and the rock in real time, achieving rapid, accurate, and real-time testing of the Poisson's ratio of the rock mass during drilling, thereby guiding the evaluation of surrounding rock stability and the optimization design of support schemes in underground engineering.
Owner:SHANDONG XINJULONG ENERGY +1

Double-robot automatic calibration method based on adaptive point planning in confined space

ActiveCN120941389BVerify reliabilityVerification accuracy
This invention discloses an automatic calibration method for dual robots in confined spaces based on adaptive point planning, belonging to the field of dual robot calibration technology. Based on the ROS architecture, a three-dimensional simulation model of the dual-robot workspace is constructed on the Rviz platform. A collision detection module is used to randomly generate calibration points composed of collision-free joint angle vectors of the two robots. While driving the robots, motion capture camera data and the Cartesian coordinates of the dual robots' forward kinematics are simultaneously acquired. A hand-eye calibration algorithm is used, optimized by the least squares method to obtain the calibration result, and its validity is determined by the average value of the data calibration accuracy until the dual-robot calibration is complete. This invention integrates simulation modeling, collision detection, and hand-eye calibration technology. Through an adaptive sampling strategy and a synchronous data acquisition mechanism, the complex calibration problem is transformed into a virtual environment parameter optimization process, significantly improving calibration robustness and accuracy, and providing a guarantee for high-precision collaborative control of dual robots.
Owner:NANKAI UNIV

A temperature control system applied to a FTU battery pack

PendingCN122512064AGuarantee long-term reliabilitychange the operating environment
This invention relates to a temperature control system for FTU battery packs, belonging to the field of power distribution automation technology. It includes an FTU device, a standard 5-pin backup power interface, a DC24V power supply, a battery pack, a temperature sensor, a heating element, and a temperature controller. The battery pack is connected to the FTU via pins 4 and 5. The temperature sensor is connected to the temperature controller via pin 1. The positive and negative terminals of the heating element are connected to the temperature controller via pins 2 and 3. The temperature controller is connected to the DC24V power supply and compares the temperature signal collected by the temperature sensor with a temperature threshold to control the start and stop of the heating element, achieving closed-loop temperature control of the battery pack. This invention achieves a "zero-destructive" upgrade of existing equipment, eliminating the need for opening holes or external wiring in the FTU protective enclosure. It retains the original sealing and protection rating (IP rating) of the equipment at the factory, preventing changes in the operating environment such as water ingress, condensation, and dust that might be introduced during modification, thus ensuring the long-term reliability of outdoor electrical equipment.
Owner:国网山东省电力公司邹城市供电公司

High-precision modular event timing system

The invention belongs to the technical field of embedded systems and real-time control, and relates to a high-precision modular event timing system based on a microTCA.4 standard and a Zynq SoC architecture, which is suitable for scenes with high requirements on time synchronization precision and system stability, such as industrial control, and adopts a Zynq SoC timing main logic AMC board card conforming to the microTCA.4 standard and a ZYNQ-7045 SOC industrial chip; a Zynq SoC-based heterogeneous firmware module is provided, a PL end supports nanosecond event timing precision, and a PS end is in high-speed communication with the PL end through an AXI bus; a point-to-point signal real-time transmission and sharing mechanism based on mLVDS is provided; a standard backboard signal output board card and a plurality of types of high-speed photoelectric conversion terminal matching board cards are provided; according to the invention, the advantages of the FPGA are fully exerted, the core function is realized, a high-precision, flexible and extensible system is constructed, and the performance of an event timing system is improved.
Owner:CHINA SPALLATION NEUTRON SOURCE SCI CENT +1

An atomization control device and method

PendingCN122499399AImprove treatment adherenceImprove the treatment experience
The present application relates to a kind of atomizers, including the inertial sensor and signal processor arranged on atomizer, the inertial sensor, signal processor are connected with the drive circuit of atomizer;The signal processor is based on the attitude signal collected by the inertial sensor, it is handled into the regulation and control signal that atomizer can directly respond, the drive circuit real-time adjustment the output of atomizer.The present application also relates to the calibration method of the atomizer.The atomizer of the present application significantly improves the inhalation deposition efficiency and inhalable fraction of atomized drug.
Owner:ACADEMY OF MILITARY MEDICAL SCIENCES

Calculation method for evaluating energy efficiency of electromagnetic heater

The invention discloses a calculation method for evaluating the energy efficiency of an electromagnetic heater, and the method comprises the steps: adding the influence of the heat absorbed by a medium, a stray magnetic field in a system, environment heat dissipation, a control system outside the system, and the cooling electric energy consumption of a machine room on the efficiency of the electromagnetic heater; according to the method, an ANSYS simulation calculation result is compared with the outer surface temperature and the heat dissipation loss rate of an electromagnetic heater model obtained through an experiment, and the surface temperature of a heat preservation layer obtained through simulation calculation and the outer surface temperature of a steel pipe with the exposed top are basically completely matched with the temperature measured through the experiment; the result provides a basis for calculating the accuracy of the heat flux density of the outer surface, and also verifies the reliability of the electromagnetic heater energy efficiency evaluation model, so that the energy efficiency evaluation result is more accurate.
Owner:MACHINERY IND LANZHOU PETROCHEM EQUIP INSPECTION INST +1

Ultrahigh pressure air valve component unit performance test device and method

PendingCN121977815ALay the foundation for localizationAccurately and effectively detect leaksDetection of fluid at leakage pointMachine valve testingRadioactive gasUltra high pressure
The invention discloses an ultrahigh pressure air valve component unit performance test device and method, and the device comprises an ultrahigh pressure compression closed circulation system which comprises an ultrahigh pressure air cylinder, a plunger and an ultrahigh pressure air valve test component, and ultrahigh pressure air enters an air cylinder compression cavity through an air inlet pipeline along an air inlet channel; ultrahigh-pressure gas in the gas cavity compression cavity is exhausted to the ultrahigh-pressure pressure relief device through an exhaust channel, the ultrahigh-pressure pressure relief device is connected to the gas inlet pipeline through a bypass pipeline, and a cyclotron is arranged on the gas inlet pipeline, prepares the ultrahigh-pressure gas into radioactive gas and introduces the radioactive gas into the ultrahigh-pressure cylinder; a scintillation detector array is arranged outside the ultrahigh-pressure cylinder, covers the whole ultrahigh-pressure cylinder and is used for capturing the flowing range of radioactive gas in the ultrahigh-pressure cylinder. The device has the functions of accurate ultrahigh-pressure gas loading, adjustable cycle frequency, working performance monitoring and the like, so that effective experimental means and technical guarantee are provided for localization of key parts.
Owner:SINOPEC OILFIELD EQUIP CORP

A Non-Contact Method and System for Detecting Respiratory Rate in Reclining Cattle Based on RGB-D

This invention relates to a non-contact method and system for detecting the respiratory rate of recumbent cattle based on RGB-D technology, belonging to the field of computer vision-based intelligent cattle farming technology. Addressing the problems of low detection accuracy and stringent environmental requirements in current methods for detecting cattle respiratory rate, the method of this invention includes: non-contactly acquiring RGB-D video stream data of a recumbent cattle to obtain an RGB visible light video stream and a depth stream; locating key parts of the recumbent cattle; defining a key target area on the abdomen based on the key parts; registering the RGB visible light video stream and the depth video stream according to their positional coordinate correspondence; obtaining the average depth value of the key target area on the abdomen; plotting a respiratory change curve based on the changes in the average depth value; and detecting and statistically analyzing the peak values ​​of the respiratory change curve to obtain the number of breaths. This invention's detection method is effective and reliable, providing a new approach for realizing non-contact intelligent cattle respiratory rate detection.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY

A structural thermo-mechanical coupling method and apparatus considering isogeometric analysis

PendingCN122088067AImprove analysis efficiencyavoid approximation errorDesign optimisation/simulation3D modellingThermal forceStructural coupling
This invention discloses a structural thermo-mechanical coupling method and apparatus considering isogeometric analysis, belonging to the field of thermodynamics. The method includes: S1. Establishing an isogeometric NURBS model: providing the basis for expressing geometric and physical fields for thermo-mechanical coupling analysis, achieving seamless integration of CAD and CAE; S2. Calculating the transient temperature field based on the central difference method: obtaining the temperature distribution of the structure at different times, providing temperature input for subsequent thermo-mechanical coupling; S3. Transforming the temperature field into equivalent temperature loads: converting the thermal effects caused by temperature changes into equivalent loads identifiable by structural mechanics analysis; S4. Solving the stiffness equation of the structure under the combined action of external forces and temperature: obtaining the displacement matrix of the structural control points; S5. Solving the structural coupling field based on the displacement matrix: obtaining all key physical quantities in the thermo-mechanical coupling field, completing the coupling analysis. This invention can verify the feasibility of applying isogeometric analysis in coupled fields.
Owner:TIANJIN UNIV

Rain, snow and ice multi-environment coupling test system for deicing equipment of railway overhead line system

PendingCN121855913AReal-time monitoring of vibration characteristicsReal-time monitoring of fatigue characteristicsOverhead installationAerodynamic testingTemperature controlSystem verification
The invention relates to the technical field of railway catenary deicing tests, in particular to a railway catenary deicing equipment rain, snow and ice multi-environment coupling test system which comprises an ice and snow wind tunnel bin and a ground verification bin, and a snow making module and a power module are arranged in the ice and snow wind tunnel bin; a spraying module, a contact network adjusting module and a deicing equipment driving module are arranged in the ground verification bin; the system further comprises a heat preservation module, a temperature control module, a pressure control module, a sensing module and a visual monitoring module. Accurate simulation of the icing state of the contact network is achieved through flying snow and freezing rain control, stress and airflow changes of the contact network can be truly reproduced, motion driving of multiple types of deicing equipment is compatible, the deicing operation process is simulated, the reliability of the deicing equipment in the extreme environment can be comprehensively verified, and the reliability of the deicing equipment is improved. The blank in the aspects of dynamic simulation, multi-phase coupling and system verification in the prior art is filled, and core support is provided for improving the anti-icing and deicing technology of the overhead line system.
Owner:CENT SOUTH UNIV

Feature fingerprint-based agricultural product origin identification traceability system and method

The present application relates to the technical field of agricultural product origin identification and traceability, and particularly discloses an agricultural product origin identification and traceability system and method based on characteristic fingerprints, which comprises the following steps: collecting agricultural product samples to obtain a target sample set; marking the target sample set with dominant characteristic fingerprints according to the dominant characteristics of the agricultural products, and performing one-class partitioning on the target sample set according to the dominant marking result to obtain a plurality of one-class sample clusters; marking the target sample set with recessive characteristic fingerprints according to the recessive characteristics of the agricultural products, and performing two-class partitioning on the target sample set according to the recessive marking result to obtain a plurality of two-class sample clusters; comparing the one-class partitioning result and the two-class partitioning result to determine whether to start a successive verification mode or a separate verification mode; based on the successive verification mode, obtaining each verification result, and determining whether to output an actual origin traceability result according to the verification results.
Owner:BEIJING SIECAN TECH CO LTD

Fault bearing test platform

The utility model discloses a fault bearing test platform, comprising a signal acquisition device which comprises a bottom plate, and a force application driver, a bearing installation seat and a rotation driver which are successively arranged on the bottom plate, the bearing installation seat comprises an outer ring seat and an inner ring seat which are coaxially sleeved from outside to inside, and a fault bearing is installed between the outer ring seat and the inner ring seat; the outer ring seat is rotatably arranged, the driving end of the rotary driver is connected with the outer ring seat and is used for driving the outer ring seat to rotate, the driving end of the force application driver is coaxially connected with the inner ring seat and is used for applying an axial load to a fault bearing, and a sensor is arranged in the inner ring seat. The fault bearing test platform can simulate the real use condition of a fault bearing, can provide effective data support for a bearing diagnosis algorithm, and also can verify the reliability of a sensor and a cable thereof under the real use condition.
Owner:TANGZHI SCI & TECH HUNAN DEV CO LTD +1

Vibration testing device

ActiveCN224202697UVerify stabilityVerify reliabilityWork holdersVibration testingElectrical batteryStructural engineering
The utility model relates to the technical field of battery manufacturing, in particular to a vibration testing device which comprises a vibration testing table, a pressing component, a first fastening component and a positioning component, the vibration testing table is used for placing a to-be-detected object such as a battery pack, the pressing component is used for pressing the to-be-detected object, and the first fastening component is used for fastening the to-be-detected object. The first fastening component is used for fixing the pressing component on the vibration test bench, so that the to-be-detected object is positioned in a first preset direction; the positioning members are connected with the vibration test bench, and at least two opposite sides or at least two opposite vertex angles of the to-be-detected object are provided with the positioning members, so that the to-be-detected object is positioned in a second preset direction and a third preset direction. The battery pack vibration test tool is designed and used for simulating the vibration environment possibly encountered in the transportation process or the actual use process of the battery pack so as to verify the structural stability and the performance reliability of the battery pack, and an important basis is provided for design and improvement of the battery pack.
Owner:SHANGHAI PYLON TECH CO LTD

Design method and system of v-shaped built-in high-speed permanent magnet rotor containing multi-separation magnetic bridge

ActiveCN115795704BMaximum allowable speed increaseincrease speedPermanent magnet rotorStress variation
The application discloses a design method and system of a V-shaped built-in high-speed permanent magnet rotor containing multiple magnetic isolation bridges, and comprises the following steps: obtaining stress analytical relations of a central magnetic isolation bridge, an intermediate magnetic isolation bridge and two side magnetic isolation bridges according to structural characteristics of the magnetic isolation bridges, geometric characteristics of pole shoe regions, force balance equations of the magnetic isolation bridges, geometric coordination conditions, material physical equations and load forms; performing calculation and analysis based on the stress analytical relations to obtain design parameters of the intermediate magnetic isolation bridge and stress variation laws of the central magnetic isolation bridge, the intermediate magnetic isolation bridge and the two side magnetic isolation bridges; and determining optimal design parameters of the intermediate magnetic isolation bridge based on the stress variation laws. The five-magnetic-isolation-bridge V-shaped permanent magnet rotor is adopted, the width direction of the intermediate magnetic isolation bridge is perpendicular to the pole shoe surface of the rotor at the position of the intermediate magnetic isolation bridge, the mechanical strength of the permanent magnet rotor structure is remarkably improved, and the maximum operating speed of the permanent magnet rotor is further improved.
Owner:DONGFENG MOTOR GRP

A method and system for detecting superficial fungi using microscopic images based on the YOLO model

PendingCN122312485AExcellent detection performanceImprove detection accuracyMicroscopic imageSpore
This invention discloses a method and system for detecting superficial fungi using microscopic images based on the YOLO model. The method involves collecting and annotating microscopic images of clinical superficial fungal disease samples. The annotated images are then classified and input into deep learning-based target detection models (including SSD-VGG16, Faster R-CNN, YOLOv5, YOLOv8, and YOLOv11 models) for training and testing. The system adjusts the Intersection over Union (IOU) threshold and evaluates the effectiveness of the confidence aggregation strategy. After preliminary performance evaluation, the best-performing model, YOLOv11, is optimized. The IOU threshold is optimized, and the system evaluates thresholds within the range of 0.25-0.75. Image-level confidence analysis is performed to evaluate the aggregation strategy. The YOLOv11 model of this invention performs optimally at 400× magnification, with an F1 score of 86.60% for hyphae detection and 95.90% for spore detection.
Owner:SHANGHAI DERMATOLOGY HOSPITAL

Unmanned aerial vehicle image-based bare soil area detection method, system, device and medium

The present application provides a kind of bare soil area detection method, system, equipment and medium based on unmanned aerial vehicle image, comprising: obtaining unmanned aerial vehicle image data and unmanned aerial vehicle positioning attitude data;Utilize multi-modal fusion bare soil identification model to identify the unmanned aerial vehicle image data, obtain the mask information of bare soil area;According to mask information and unmanned aerial vehicle positioning attitude data, calculate bare soil area;The verification of bare soil area generates standardization detection report;The present application can fully fuse the multi-dimensional features of visible light, infrared thermal imaging and laser radar point cloud by multi-modal fusion bare soil identification model to identify multi-modal image, realize the accurate identification of bare soil area and output reliable mask information, which is beneficial to improve the accuracy and generalization ability of bare soil identification;And combine bare soil area mask information and unmanned aerial vehicle positioning attitude data to calculate bare soil area, can convert pixel-level mask to actual ground area, thereby effectively guarantee the accuracy of area calculation.
Owner:SHANGHAI (BEIJING) ARTIFICIAL INTELLIGENCE TECHNOLOGY RESEARCH INSTITUTE CO LTD

A multi-channel 1553b controller and its data transmission method

ActiveCN116827712BImprove coordination and cooperationRealize sending and receiving controlBus networksData transmissionEmbedded system
The application provides a multi-channel 1553B controller and a data transmission method thereof. The multi-channel 1553B controller comprises multi-channel 1553B protocol transceiving modules which can be configured as BC mode or RT mode, all the 1553B protocol transceiving modules are connected through a 1553B bus, and the other end is connected with a multi-channel polling scheduling module. In use, only the BC mode or the RT mode can be used, or the BC mode and the RT mode can be simultaneously realized. The BC and the RT perform data interaction on the 1553B bus under the control of an upper computer, and the data can also be returned to the upper computer through the multi-channel polling scheduling module to verify the data. The application can support multiple modes, can realize the transceiving control of multiple channels by a single upper computer, improves the coordination performance of the multi-channel 1553B protocol transceiving modules, and can perform self-loop test through a controller to verify the reliability of the data.
Owner:TIANJIN JINHANG COMP TECH RES INST

Method and system for measuring particle size of downhole in-situ broken rock debris of PDC (Polycrystalline Diamond Compact) bit

PendingCN121960060AVerify reliabilityVerify accuracyMeasurement devicesDesign optimisation/simulationWell drillingAcoustic wave
The invention discloses a PDC drill bit shaft bottom in-situ rock breaking debris particle size measurement method and system, and relates to the technical field of shaft bottom in-situ rock breaking debris particle size measurement, and the method comprises the steps: constructing a shaft bottom in-situ finite-discrete-infinite element rock model; the in-situ stratum rock at the well bottom is regarded as an infinite boundary, and PDC tooth cutting rock breaking parameter calibration and PDC tooth rock breaking model modeling are carried out; and under the non-bilinear damage criterion, through the interaction of the in-situ finite-discrete-infinite element rock model and the PDC tooth crushing rock model, the in-situ initial rock debris particle size of the well bottom is measured, and the performance of the drilling fluid is adjusted. According to the method, the well bottom in-situ rock debris particle size is measured based on the non-bilinear damage criterion of the typical rock stress-strain curve and the well bottom in-situ finite-discrete-infinite element rock model in a coupling mode, and the reliability and accuracy of well bottom in-situ rock breaking rock debris particle size measurement are improved; and the problem of high calculation cost or sound wave effect of a finite-discrete element model is avoided.
Owner:NORTHEAST GASOLINEEUM UNIV

Test system and equipment for driving controller

The invention provides a test system and equipment for a driving controller, which are applied to the field of electrical equipment detection and control, and the system comprises a first test module, a second test module and a control module, the first test module is connected with an external power supply and is connected with a power supply test pin and a communication test pin of the driving controller; the second test module is connected with a function test pin of the driving controller; the control module is connected with the first test module and the second test module, and is configured to obtain first electrical parameter information of the power supply test pin, communication information of the communication test pin, second electrical parameter information analyzed through the communication information and third electrical parameter information of a working mode of the driving controller; and the control module is used for performing a simulation test on the driving controller based on the acquired first, second and third electrical parameter information and the communication information. The test system provided by the invention is used for detecting the performance of the vehicle driving controller, and can realize the full-process simulation test of the driving controller.
Owner:MIND ELECTRONICS APPLIANCE CO LTD

Layered ceramic matrix composite structural strength calculation method considering layering defect

PendingCN121922260AAccurately reproduce mechanicsAccurate reproduction of characteristicsDesign optimisation/simulationComputational materials scienceElement modelFinite element software
The invention discloses a layered ceramic matrix composite structural strength calculation method considering layering defects, which comprises the following steps of: constructing a ceramic matrix composite three-dimensional finite element model embedded with a zero-thickness cohesion unit in ANSYS finite element software, and combining a progressive damage analysis method; the method can accurately simulate the whole process of damage initiation, evolution and final failure of the ceramic matrix composite material under the load effect, and significantly improves the recognition precision of internal defects (especially layering defects) and the prediction reliability of the structural strength.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Aircraft skin longitudinal joint structure strength analysis method

This invention designs a method for strength analysis of longitudinal connection structures in aircraft skin, belonging to the field of airframe structural strength design. Through finite element modeling and experimental analysis, it determines the load-sharing factor of fasteners and the influence of secondary bending on the load-bearing capacity of the connection area. This invention significantly improves the accuracy of strength calculations for longitudinal connection structures in aircraft skin, providing support for strength analysis of aircraft products. This invention has wide applications in structural design in aviation, aerospace, and automotive industries; it can improve structural utilization efficiency, designing optimal structural dimensions while meeting structural strength requirements; it helps reduce unnecessary conservative designs, greatly shortening development time and reducing development costs.
Owner:NORTHEASTERN UNIV CHINA

An experimental device capable of measuring imaging quality of an optical system and laser damage threshold

The application discloses an experimental device capable of measuring imaging quality and laser damage threshold of an optical system, and relates to the technical field of optical systems. In the device, first and second diaphragms are used for collimating a light path and limiting the size of a light spot entering an attenuation imaging-energy detection system; the first and second diaphragms are cooperated with a mirror group to realize adjustment of the light path; the second diaphragm limits the size of the light spot incident to the double detection system; and the attenuation imaging-energy detection system acquires the energy and imaging effect of the laser beam output by the second diaphragm. Through cooperation of the diaphragm assembly and the mirror assembly, the dimensions of the light path adjustment are effectively expanded, and the light path is more easily adjusted and collimated; through the attenuation sheet and the mirror assembly, the point spread function measurement of the optical system at different distances can be realized in a limited experimental site, and the test of the laser damage threshold of the optical system can be completed without changing the light path.
Owner:NAT UNIV OF DEFENSE TECH

Current verification device of integrated DCDC dual-motor controller assembly

The utility model discloses a current check device of integrated DCDC double motor controller assembly, include: DCDC power module, its B+ output end and double motor controller's TM motor's U phase interface connection, its B the output end and double motor controller's T interface connection, DCDC main control chip, its integration is in DCDC power module, and its current sampling end is connected to the output loop of DCDC power module, current sampling circuit module, its sampling input end is connected with double motor controller's TM motor's U phase interface and double motor controller's T interface respectively, microcontroller, its built -in in double motor controller, and its input end is connected with current sampling circuit module's sampling output end, and host computer is connected with DCDC main control chip and microcontroller respectively. The utility model has low cost high efficiency, problem discovery forward, product internal closed loop and so on advantage.
Owner:浙江创驱智能科技有限公司