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96results about How to "Be flexible" patented technology
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High-precision coordinate calculation method based on Matlab
PendingCN121997592AIntegrity guaranteedDiversity guaranteedDesign optimisation/simulationCluster algorithmWorkspace
The invention discloses a high-precision coordinate calculation method based on Matlab, and belongs to the field of coordinate calculation technology and data processing, and the method comprises the steps: firstly, obtaining the combination of all points and vectors through a specific combination generation function, and then initializing a result vector; aiming at each combination, calculating intersection point coordinates and parameters by virtue of an accurate geometric intersection point calculation function, storing the intersection point coordinates and parameters in a result vector, and distributing the intersection point coordinates and parameters to a working area according to a rule by virtue of a working area assignment function; then, a midpoint coordinate matrix is obtained by applying a midpoint calculation function based on the coordinates of the intersection points, the distance between the points is calculated, a clustering center is determined by adopting a clustering algorithm, points of an intersection point concentrated area are screened out according to distance characteristics in a cluster, and finally, high-precision coordinates are calculated through a weighted average calculation function in combination with priori knowledge and weights. According to the method, the coordinate calculation precision can be effectively improved, good noise immunity is achieved, priori knowledge can be fully fused, and the method is suitable for numerous fields with high coordinate precision requirements.
Owner:HEFEI UNIV OF TECH +1
HPC job power consumption prediction method and system based on power consumption curve and script information
ActiveCN117195001Bcapture similaritiescapture differencesEnergy efficient computingPerformance computingNetwork model
The application relates to the field of high-performance computing, and provides an HPC job power consumption prediction method and system based on power consumption curves and script information. The method comprises the following steps: obtaining a first similarity value based on historical job power consumption curve data; obtaining a second similarity value based on historical job script information data; assigning weights to the first similarity value and the second similarity value according to requirements, calculating a weighted sum, obtaining a comprehensive similarity value, and constructing a similarity adjacency matrix in this way; dividing HPC jobs into different categories according to the similarity adjacency matrix on the principle of maximizing a module degree index; training different neural network models based on historical data in different categories after the division, obtaining trained neural network models; matching a historical job category similar to a target HPC job, and using the neural network model of the historical job category to predict script information data of the target HPC job to obtain a prediction result.
Owner:SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN +1
Concave-convex splicing assembly type wall
The utility model relates to a concave-convex splicing assembly type wall body, the wall body comprises daughter boards (1) and corner splicing pieces (2), the two opposite sides of each daughter board (1) are respectively provided with a splicing clamping opening (1-1) and a splicing clamping groove (1-2) which are used for splicing, and the adjacent daughter boards (1) can be spliced in a plane mode through the splicing clamping openings (1-1) and the splicing clamping grooves (1-2); the corner splicing pieces (2) comprise right-angle bending splicing pieces (2-1), acute-angle bending splicing pieces (2-2) and obtuse-angle bending splicing pieces (2-3) which are used for right-angle corner splicing, acute-angle corner splicing and obtuse-angle corner splicing of the adjacent daughter boards (1); the daughter board (1) is provided with preformed holes (1-3) used for being matched with self-tapping screws to achieve fixation. Compared with the prior art, the sound insulation wall has the advantages that the problem of sound leakage generally existing at the splicing position of a traditional assembly type wall can be effectively solved, the sound insulation amount of the splicing position is equivalent to that of the wall, adjustment can be carried out according to the design requirements of close splicing or masking seams, and the sound insulation wall has the attractive effect and flexible design.
Owner:SHANGHAI YUNJIN INTELLIGENT CONSTR TECH CO LTD +1
A continuous multi-pulse generating circuit and control method of a common discharge loop
The present application belongs to the field of pulse power and laser control, and relates to a continuous multi-pulse generation circuit and a control method sharing a discharge loop, comprising a plurality of continuous multi-pulse generation circuits, each of which comprises a plurality of charging loops, a plurality of voltage dividing sampling resistors, a plurality of discharge switches and a shared discharge loop; the charging loop is used to form a charging path when the discharge switch is turned off, and comprises a charging module, a diode, a charging damping resistor, a charging damping inductor and an energy storage capacitor module; the voltage dividing sampling resistor is used to sample and divide the voltage of the positive electrode of the energy storage capacitor module, and the low-voltage signal obtained by voltage division is used as the feedback control input for adjusting the charging voltage of the charging module; the shared discharge loop is used to generate a current pulse when the switch is turned on, and the plurality of continuous multi-pulse generation circuits respectively form a plurality of discharge loops with the shared discharge loop; the hardware configuration of the discharge loop is simplified, and a multi-pulse string with flexible configuration attributes can be generated.
Owner:LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
Shear connector, steel-concrete composite beam comprising the shear connector, and construction method thereof
ActiveCN117403530BReduce shear slip resistanceResist vertical lifting force
The application discloses a shear connector, a steel-concrete composite beam containing the shear connector and a construction method of the steel-concrete composite beam. The shear connector comprises an inverted truncated cone type cylinder (7), a stiffener, a cover plate, a penetrating steel bar (8) and a high-strength bolt (21); the stiffener comprises an integrally formed stiffener bottom plate (13) and a stiffener side plate (14), the size of the stiffener bottom plate is consistent with the size of the lower opening of the cylinder, and the stiffener bottom plate is attached to the lower opening of the cylinder; the stiffener bottom plate is provided with a second connecting hole for connecting the high-strength bolt; the stiffener side plate is arranged around the stiffener bottom plate and is attached to the inner wall of the cylinder; the height of the stiffener side plate is lower than that of the first connecting hole; the cover plate covers the upper opening of the cylinder; the penetrating steel bar transversely passes through the cylinder through the first connecting hole and leaves a connecting section on each side of the cylinder; and the high-strength bolt connects the stiffener bottom plate through the second connecting hole. The application realizes the disassembly and replacement of each component of the shear connector and the prefabricated bridge deck; and the structure form and stress performance of the shear connector are optimized.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
Team garden unit
The utility model provides a team garden plot unit, a team garden plot is formed in the team garden plot unit, the team garden plot unit comprises a plurality of wall bodies, the plurality of wall bodies are connected end to end to form the team garden plot, and at least one wall body is provided with a display board frame; the top plate assembly is located at the top of the team garden plot unit, and the peripheral side of the top plate assembly is connected with the multiple walls; the first display board is detachably connected with the display board frame; the number of the cabinet bodies is multiple, and the multiple cabinet bodies are arranged in the team garden plot unit in the circumferential direction of the team garden plot unit. According to the team garden plot unit, the modularized team garden plot is designed, so that the team garden plot unit has flexibility, standardization and multifunctionality, and the technical problem that the team garden plot unit in the prior art cannot meet the requirements of enterprise management and production is solved.
Owner:ZHENLAI XINYUAN COMPOSITE MATERIAL TECH
Electromagnetic drive type sucking structure of massager
The utility model relates to the massage device of massage device driving structure field's electromagnetic drive formula sucking structure, including fixed bolster and electric control massage subassembly, electromagnetic drive source is by the casing and sets up in the coil support and cylindrical magnetic jar of casing inside constitution, the periphery of coil support is wound with the electromagnetic coil, power supply and electromagnetic coil all with main control circuit board electric connection, coil support installs in the inside of magnetic jar along the opening of magnetic jar, and can along the opening direction of magnetic jar telescopic activity, the bottom of coil support is connected with the airbag for being driven by coil support and makes the massage mouth produce negative pressure telescopic activity. When working, coil support telescopic activity along the inside of magnetic jar, thereby drive airbag along the axial direction of magnetic jar and make reciprocating motion, make the inside of sucking mouth form negative pressure, realize the technical effect of noise reduction through non - contact magnetic force drive, can absorb the part high - frequency vibration energy that coil support does linear telescopic motion produces, ensure that can eliminate part mechanical vibration feeling when working.
Owner:ZAISHENG TECH (SHENZHEN) CO LTD
Visual guidance spring clamping device and spring welding equipment
ActiveCN224254575UPinpoint locationAccurate clampingWelding/cutting auxillary devicesAuxillary welding devicesManipulatorVisual perception
The utility model relates to the technical field of spring installation, and discloses a visual guidance spring clamping device and spring welding equipment. In the visual guidance spring clamping device, the CCD module is used for positioning a spring and identifying the position of an elastic sheet hole; the XYZ servo manipulator is used for clamping the spring and moving the spring to the framework; the pressing mechanism is used for pressing and fixing the spring; and the pressing mechanism is provided with an execution element. According to the spring welding equipment, a visual guidance spring clamping device is used for moving a spring and clamping the spring to the position, corresponding to an elastic piece hole, of a framework; the welding manipulator is used for welding. According to the technical scheme, high-precision positioning and clamping can be achieved, the positions of spring pins and elastic piece holes can be accurately recognized through the image positioning technology of the CCD module, accurate spring clamping is ensured by being matched with accurate control of the XYZ servo mechanical arm, the clamping efficiency and the welding quality are greatly improved, and the production cost is reduced. And the spring clamping and welding production efficiency and the product quality are obviously improved.
Owner:深圳市远望工业自动化设备有限公司
Terminal and edge server cooperative model inference optimization method and system, and storage medium
The application provides a terminal and edge server cooperative model reasoning optimization method and system and a storage medium. The method comprises the following steps: acquiring the computing power parameters and communication parameters of local terminals and edge servers in an initial model deployment environment; combining the computing power parameters, the communication parameters and layer structure information of the initial model to calculate a total splitting cost; taking the total splitting cost and model reasoning accuracy as optimization objectives, processing the initial model based on an optimal pruning strategy to generate a lightweight model; selecting a target splitting point matched with a real-time communication rate from the matching relationship between the communication rate interval and the splitting point, splitting the lightweight model into a terminal-side sub-model and an edge-side sub-model based on the target splitting point, deploying the terminal-side sub-model on the local terminal and deploying the edge-side sub-model on the edge server to carry out cooperative reasoning. The embodiment of the application can ensure reasoning accuracy while realizing low delay.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Speech enhancement method based on time sequence convolutional network
The invention discloses a speech enhancement method based on a time sequence convolutional network, and the method comprises the steps: obtaining a data set, completing the preprocessing of the data, and generating a data pair for training a model; constructing a measurement standard of the system according to general industry knowledge rules and actual application scene requirements; constructing an encoder by using convolution short-time-distance Fourier transform, and using the encoder as a characteristic value of audio data and a model input item; a time sequence convolutional network TCN training model is introduced, and an encoder is decoded to obtain a voice enhancement processing result; according to the method, the effect of speech enhancement is analyzed according to a previously established measurement standard, and large-scale complex audio enhancement processing is quickly and effectively performed by introducing the time sequence convolutional network. The structure, the number of layers and parameters of the time sequence convolutional network can be learned and adjusted according to actual conditions, so that the model has flexibility and adaptability, the performance and the effect of the model are further improved, and stronger support is provided for realizing large-scale multi-type speech enhancement.
Owner:NANJING UNIV OF POSTS & TELECOMM +1
Water-based cadmium ion-vanadium dioxide battery as well as preparation method and application thereof
ActiveCN121885796AHigh specific capacityImprove electrochemical performanceSecondary cellsPositive electrodesElectrolytic agentVanadium dioxide
The invention provides an aqueous cadmium ion-vanadium dioxide battery as well as a preparation method and application thereof, and relates to the field of ocean energy storage. The battery comprises a negative electrode, a positive electrode, a diaphragm and an aqueous electrolyte, the negative electrode is metal cadmium or cadmium-based alloy; the active material of the positive electrode is metastable monoclinic phase vanadium dioxide; the diaphragm is a glass fiber diaphragm; the aqueous electrolyte is an aqueous solution containing cadmium salt; the total concentration of the cadmium salt in the aqueous electrolyte is 1-4 mol / L. The aqueous vanadium dioxide-cadmium metal secondary battery disclosed by the invention has the advantages of safe aqueous electrolyte system, high rate capability, ultra-long cycle life and the like, and has remarkable advantages when being applied to ocean energy storage.
Owner:SANYA SCI & EDUCATION INNOVATION PARK WUHAN UNIV OF TECH
Simulation test system and method for aircraft obstacle avoidance algorithm
PendingCN122085750ARealize deep integrationno collisionSimulator controlDesign optimisation/simulationAviationObstacle avoidance algorithm
The invention belongs to the technical field of aircraft control, and particularly relates to a simulation test system and method for an aircraft obstacle avoidance algorithm. The invention discloses a simulation test system and method for an aircraft obstacle avoidance algorithm. The system comprises a virtual environment modeling device, a dynamics resolving device, an obstacle avoidance logic processing device, a physiological feature modeling device, a stress parameter mapping device, a comprehensive evaluation feedback device and a data monitoring device. According to the method, kinematic parameters are mapped into physiological stress parameters such as gravity overload and motion sickness, and an obstacle avoidance track is fed back and corrected according to a physiological comfort threshold, so that an obstacle avoidance path conforms to the tolerance limit of a human body on the premise of ensuring safety. According to the method, deep fusion of control engineering and aeronautical medicine is realized, obstacle avoidance assessment extends to the field of physiological tolerance from physical safety, the scientificity of simulation assessment of the manned aircraft is improved, and the risk of personnel disability caused by violent maneuver in real flight is reduced.
Owner:SHANXI ZHENGHETIAN TECH CO LTD
Intelligent outdoor fire hydrant
ActiveCN224338339UExtended service lifeEasy to installFire rescueService pipe systemsWater resourcesStructural engineering
The utility model relates to intelligent outdoor fire hydrant technical field, and disclose a kind of intelligent outdoor fire hydrant, including fire hydrant body, the top of fire hydrant body is fixedly connected with two groups of water outlet pipe, one end of the water outlet pipe is fixedly connected with mechanical seal component, the surface of fire hydrant body is fixedly connected with anti-collision component;Mechanical seal component includes the support ring of fixed connection in the water outlet pipe one end, one end of the support ring is fixedly connected with sealing ring, the surface of support ring is fixedly connected with two groups of pivot, the surface of pivot is rotatably connected with buckle, one side of support ring is fixedly connected with plug cover;Anti-collision component includes the heat insulation cotton of fixed connection on the surface of fire hydrant body, the surface of heat insulation cotton is sleeved with rubber cylinder.The intelligent outdoor fire hydrant, reach the situation of preventing fire hydrant from leaking, avoid water resource waste, prolong the service life of fire hydrant, reduce maintenance cost.
Owner:SHANGHAI HAIXIAO FIRE PROTECTION GROUP CO LTD
Amanita spore collecting device
ActiveCN224199381UBe flexiblepreserve integrityBioreactor/fermenter combinationsBiological substance pretreatmentsSporelingStructural engineering
The utility model discloses an amanita spore collecting device which comprises a supporting rod, a gravity base is installed at the lower end of the supporting rod, a connecting base is fixedly installed at the upper end of the supporting rod, an installing base is fixedly installed at the upper end of the connecting base, a petal base is rotationally connected to the surface of the installing base, and a collecting paper bowl is installed on the inner side of the petal base. An elastic sleeve is integrally connected to the middle of the interior of the collection paper bowl; an air blower in the middle of a mounting seat is used for blowing air from the bottom of an amanita strain, spores in a gill are blown into a collection paper bowl, collection of the amanita spores is completed, an opening structure on one side of a valve seat is combined with a rotating structure arranged between the supporting rod and a gravity base, so that the supporting rod is inclined, the valve seat is made to be close to the strain, and the spores in the amanita strain are collected. Therefore, the whole strain does not need to be collected for spore collection, the integrity of the strain is reserved, and the actual culture quantity and the overall medicinal value of the amanita are not influenced.
Owner:YUNNAN AGRICULTURAL UNIVERSITY
Satellite-borne radar working state autonomous recovery method
ActiveCN115685105BSolve the problem of autonomous recovery to work statusDo not change hardware resourcesRadio wave reradiation/reflectionRadarEmbedded software
The application provides a kind of satellite-borne radar working state autonomous recovery method, comprising the following steps: S1, determine the radar state recovery key variable of the satellite-borne radar;S2, add key variable saving module in the embedded software, for regularly storing the latest data of the radar state recovery key variable, and regularly setting watchdog fly monitoring flag and overall pre-reset instruction flag;S3, add logic branch submodule in the embedded software, for reading the watchdog fly monitoring flag and overall pre-reset instruction flag, and further executing radar normal power-on start initialization branch or watchdog fly reset branch or pre-reset instruction reset branch.The application can make the satellite-borne radar autonomously recover the working state after encountering single event upset failure, avoid causing the interruption of satellite-borne radar target tracking monitoring, improve the reliability of satellite-borne radar product on-orbit operation, and has the simplicity, independence, flexibility and wide applicability of implementation.
Owner:SHANGHAI RADIO EQUIP RES INST
Full-three-dimensional air inlet space wall surface pressure distribution inverse design feature construction method
PendingCN121997817Acooperate wellBe flexibleGeometric CADDesign optimisation/simulationShock waveInlet channel
The invention provides a full-three-dimensional air inlet channel three-dimensional wall surface pressure distribution inverse design feature construction method, which comprises the following steps of (1) giving a circumferential change rule of a pressure curve control point according to a circumferential angle of an end point of a shock wave dependence area; (2) giving a p-x curve of a pseudo flow direction based on a spline curve, and defining that the theta value of each curve in a p-x-theta coordinate system is the same; (3) performing parameter distribution on each pseudo-flow-direction p-x curve, inversely solving a control point of a low-frequency spline mixing function, and obtaining a mixing function of each pseudo-flow-direction pressure curve; and (4) according to the parameter equation of the pressure curved surface, constructing to obtain a three-dimensional pressure curved surface interpolated in the pressure curve. According to the method, the space wall surface pressure distribution inverse design feature construction efficiency and flexibility of the full-three-dimensional air inlet duct inverse design method can be improved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Method of reducing thermal damage with cooling medium in conjunction with laser processing array
The application provides a method for reducing thermal damage of a cooling medium and a laser processing array. The method can reduce or even avoid the formation of a thermal damage area of the laser processing, improve the processing quality, and particularly can improve the density of an array structure, and obtain a ceramic product containing a high-integration array structure.
Owner:DONGGUAN UNIV OF TECH
Resistivity imaging method based on core surface resistivity measurement and electronic device
This application provides a resistivity imaging method and electronic device based on core surface resistivity measurement, belonging to the field of rock electric field detection technology. The method includes: calculating the resistivity conversion value of each button electrode based on the measured voltage of each button electrode; calculating the apparent resistivity of the calibrated core sample surface based on the resistivity conversion value and the resistivity of the electrolyte; calculating the standard deviation of each button electrode and the total standard deviation of all button electrodes on all metal plates based on the apparent resistivity; calculating the equalized resistivity of the core sample surface based on the standard deviation of each button electrode and the total standard deviation of all button electrodes on all metal plates; and performing imaging processing using an imaging algorithm based on the resistivity of the core sample surface to obtain a core surface resistivity image. This application's solution can improve the accuracy of resistivity imaging.
Owner:PETROCHINA CO LTD
Battery gland clamping tool
ActiveCN224209806UGuaranteed accuracystable performanceWork holdersElectrical batteryMechanical engineering
Owner:OUT ENERGY (JIANGMEN) CO LTD
Clamp device for numerical control machining
ActiveCN224169278UOptimize manual clamping efficiencyquick resetPositioning apparatusMetal-working holdersNumerical controlGear wheel
The utility model relates to a clamp device for numerical control machining, which comprises a fixed bottom plate, a sliding clamping block, a fixed clamping block, a clamping platform, a gear set, a locking mechanism, a roller, a roller connecting rod, a reset device, a spring bolt deflector rod and a connecting rod fixing seat, the clamping platform is installed on the fixed bottom plate, the locking mechanism has a certain locking effect on the clamp, the cross section of the spring bolt is designed to be a rectangle plus a quarter circle, the first spring is arranged on one side of the spring bolt, the contact position of the spring bolt shifting rod and the spring bolt can easily rotate upwards but is difficult to move downwards, and the clamp can conduct locking during clamping. When clamping needs to be loosened, the sliding knob needs to be shifted to pull back the spring bolt, at the moment, due to the existence of the reset device, manual shifting of the spring bolt shifting rod is not needed, the manual clamping efficiency can be optimized through the gear set, the sliding knob and the like adopted by the clamping device, and the reset device can be rapidly reset when clamping is loosened.
Owner:QIANDAO LAKE SECONDARY VOCATIONAL SCHOOL (CHUNAN COUNTY TECH SCHOOL)
A pre-processing-integration-based offshore wind power discrete event simulation constraint condition integration simplification method, system, device and medium
PendingCN122114580ALarge memory burdenFacilitate logical judgmentData processing applicationsControl engineeringOffshore wind power
The application provides a pre-treatment-integration-based offshore wind power discrete event simulation constraint condition integration simplification method, system, device and medium, and is oriented to complex offshore wind power construction simulation. Before simulation starts, possible influencing factors in the simulation process are processed, and are integrated and simplified into a simulation time axis, so that the simulation time axis can be flexibly called in the simulation process. The method provided by the application comprises the following steps: establishing basic simulation content, obtaining limiting conditions affecting construction, establishing an influencing factor model, pre-processing various influencing factors, integrating and generating a process executable time axis, and calling the process executable time axis. On the premise of ensuring simulation efficiency, various factors affecting offshore wind power construction are reasonably analyzed and judged, and the method is suitable for a realistic construction environment and has flexibility and higher confidence.
Owner:POWERCHINA HUADONG ENG CORP LTD
Heat supply regulation method and device of heat exchange unit, electronic equipment and storage medium
ActiveCN116839094BAccuracyTo achieve the purpose of fine controlLighting and heating apparatusEfficient regulation technologiesThermodynamicsProcess engineering
The application provides a heat supply regulation and control method and device of a heat exchange unit, electronic equipment and a storage medium. The method comprises the following steps: acquiring a current heat load value and a heat supply regulation and control parameter of the heat exchange unit in real time according to a preset regulation and control period; determining a first target heat load value of the heat exchange unit based on the heat supply regulation and control parameter; correcting the first target heat load value to obtain a second target heat load value; and regulating and controlling the heat supply of the heat exchange unit based on the second target heat load value and the current heat load value. The technical problem that the heat supply demand of each heat exchange unit cannot be accurately measured in the prior art is solved, and the purpose of flexible heat supply regulation and control is achieved.
Owner:TONGFANG SMART ENERGY CO LTD
Liquid cooling system for high-power battery pack and high-power battery pack
PendingCN121812815AImprove group efficiencyBe flexibleSecondary cellsCell component detailsPower batteryElectrical battery
The invention discloses a liquid cooling system for a high-power battery pack and the high-power battery pack, the high-power battery pack comprises a battery pack panel, a battery pack bottom plate, and a plurality of layers of battery cells and a heat conducting plate which are stacked in the height direction, and the plurality of battery cells are laid on the heat conducting plate along the length direction of the heat conducting plate; the liquid cooling system comprises heat dissipation pipelines, rubber hoses, limiting devices, a liquid inlet, a liquid outlet and a cooling liquid circulating pump, the heat dissipation pipelines are arranged at the two ends of the heat conduction plate, the heat dissipation pipelines are limited and compacted on the heat conduction plate through the limiting devices, the different heat dissipation pipelines are connected through the rubber hoses, and the battery pack panel is provided with the liquid inlet and the liquid outlet. And the liquid inlet and the liquid outlet are connected with a cooling liquid circulating pump through rubber hoses. The modular layout is adopted, maintenance and customized configuration are convenient, the system flexibility is achieved, the battery pack design is integrated and highly integrated, and the grouping efficiency of the battery pack is effectively improved.
Owner:CHINA POWER TECH INC
Double-eccentric butterfly valve for hydrogen receiving station
ActiveCN224135199UCooling effect has little impactsmall transformerContainer filling methodsLift valveInsulation layerCooling effect
The utility model discloses a double-eccentric butterfly valve for a hydrogen receiving station, which belongs to the technical field of double-eccentric butterfly valves and comprises a valve seat, a heat insulation layer is mounted in the valve seat, heat insulation materials are coated outside the valve seat, connecting ports are arranged at two ends of the valve seat, a working component is mounted on the side edge of the valve seat, and a constant-temperature component is mounted on the inner wall of the valve seat. According to the constant-temperature assembly, a part can be reserved for storage in the flowing process of liquid hydrogen, the hollow part on one side of the butterfly valve is cooled through the temperature of the liquid hydrogen, it is guaranteed that the temperature of the sealing ring located on the hollow part is basically kept consistent with the temperature of the liquid hydrogen, and therefore in the valve opening process, the temperature of the sealing ring is kept constant. The liquid hydrogen has little influence on the cooling effect of the sealing ring, so that the sealing stability of the sealing ring is maintained, the possibility of hydrogen leakage is reduced, meanwhile, the liquid hydrogen can generate hydrogen in the cooling process of the hollow part of the valve seat, the sealing performance of the valve seat is guaranteed, and the use and sealing of equipment are more stable.
Owner:SHENJIANG VALVE
Ultrasonic water meter metering abnormity self-checking method based on sound velocity dynamic correction
PendingCN121762001AGuaranteed long-term accuracyImprove reliabilityVolume/mass flow measurementTesting/calibration for volume flowTransducerControl ultrasound
An ultrasonic water meter metering abnormity self-checking method based on sound velocity dynamic correction relates to the technical field of data identification, and comprises the following steps: in a metering period, controlling an ultrasonic transducer to alternately transmit and receive first frequency ultrasonic waves and second frequency ultrasonic waves; according to the flight time data, calculating a first flow velocity, a first sound velocity, a second flow velocity and a second sound velocity; calculating a flow velocity difference value between the first flow velocity and the second flow velocity, and calculating a sound velocity difference value between the first sound velocity and the second sound velocity; when the flow velocity difference value exceeds a preset flow velocity difference value threshold value or the sound velocity difference value exceeds a preset sound velocity difference value threshold value, abnormal state information of abnormal metering in the current metering period is generated; and determining a compensation flow velocity as an effective flow velocity of the current metering period according to a preset compensation strategy. By implementing the application, the metering accuracy of the ultrasonic water meter in a long-term operation state can be improved.
Owner:NANJING ZIFENG WATER EQUIPMENT CO LTD
Rotary-evaporation rate coordinated control method and system based on deposition distribution model
PendingCN122503826AShorten the development cycleincrease evaporation rateEvaporation (deposition)Model parameters
The present application relates to the technical field of vacuum coating, in particular to a rotating-evaporation rate collaborative control method and system based on deposition distribution model, which establishes a deposition process model containing an evaporation source distribution model, a substrate kinematics model and a cumulative dose model; based on the model, a rotating speed ω(t) and an evaporation rate R i (t) are optimized variables, a collaborative control trajectory is generated through multi-objective optimization; the trajectory is executed; and deposition state data is obtained in real time during the coating process, compared with the model prediction value, the model parameters are corrected online and the trajectory is regenerated, realizing rotating-evaporation rate collaborative control. The method first promotes the rotating speed from a fixed parameter to an active control variable, optimizes it collaboratively with the evaporation rate, increases a completely independent control degree of freedom, fundamentally breaks through the uniformity and component precision upper limit of traditional single-variable control, and solves the poor uniformity problem of perovskite photovoltaic components in the prior art.
Owner:HUANENG CLEAN ENERGY RES INST +1
Plug-in type assembled neon lamp strip
ActiveCN224246145UAchieve plug-in assemblyimprove securityLighting support devicesElongate light sourcesMechanical engineeringNeon lamp
The utility model belongs to the technical field of neon lamp strips, and particularly relates to a plug-in type assembled neon lamp strip which comprises a first connector. One side of the first connector abuts against a second connector through a fixing mechanism, a plug is fixedly installed in the second connector, and a socket is fixedly installed in the first connector; wherein the plug comprises a plug-in main body, a reed is fixedly mounted on one side of the plug-in main body, and the reed is used for driving the plug-in main body to be clamped with the fixed seat, so that the plug-in main body drives one end of the conductive assembly to slide in the fixed shell. According to the utility model, the two neon lamp strips can be assembled in a plug-in manner through the first connector and the second connector as well as the socket and the plug which are arranged inside the first connector and the second connector, and the neon lamp strips and the plug-in assembly structure are simpler and more convenient to install, so that the neon lamp strips can be effectively prevented from loosening and falling off.
Owner:FOSHAN WEIXIN TECHNOLOGY CO LTD
Auxiliary teaching material generation method and system based on artificial intelligence technology
PendingCN121935297AImprove lesson preparation efficiencyensure internal correlationData processing applicationsSemantic analysisPersonalizationAnimation
The invention belongs to the technical field of computers and artificial intelligence, particularly relates to an auxiliary teaching material generation method and system based on an artificial intelligence technology, and aims to solve the problems that existing teaching materials are low in production efficiency, insufficient in individuation degree and difficult to generate visual materials. The method comprises the steps of obtaining and analyzing a teaching material generation request to determine a teaching range requirement and a core knowledge point; according to the requirements and the core knowledge points, aggregating related contents from a plurality of resource libraries, and extracting and generating a hierarchical knowledge point structure by using an artificial intelligence large model; and generating at least one teaching material including an interactive animation, a knowledge card or a mind map based on the knowledge point structure. According to the invention, the teaching materials can be automatically, intelligently and individually generated, the lesson preparation efficiency is remarkably improved, the expression form of the teaching resources is enriched, and the teaching effect is improved.
Owner:TONGFANG KNOWLEDGE DIGITAL PUBLISHING TECH CO LTD
Acellular matrix fiber woven scaffold as well as preparation method and application thereof
PendingCN121971707AFast degradationImprove loading efficiencySwivel-woven fabricsProsthesisTissue repairAcellular matrix
The invention provides an acellular matrix fiber woven scaffold as well as a preparation method and application thereof, and belongs to the technical field of biomedical materials. The acellular matrix fiber woven scaffold comprises a woven structure unit, wherein the woven structure unit comprises warp yarns and a plurality of acellular matrix fiber weft yarns; the acellular matrix fiber is prepared by cutting an acellular matrix paper-based material at equal intervals; the plurality of acellular matrix fiber wefts are arranged in parallel according to a bionic trend and are interwoven and fixed through the warps, so that a bionic pattern simulating natural tissue fiber arrangement is formed in the weaving structure unit. The acellular matrix fiber scaffold is prepared by innovatively applying a weaving technology, the scaffold can improve the cell loading efficiency, is beneficial to self-repair and reconstruction of damaged tissues, provides suitable survival and growth conditions for cells, and has good application prospects in the field of biomedical engineering, especially in the aspects of tissue repair and regenerative medicine. And huge application potential is shown.
Owner:NEOSHENG (TIANJIN) BIOTECHNOLOGY CO LTD
A remote user trusted authentication system, method and medium in an internet of things environment
ActiveCN116866046BImplement trusted authenticationReduce computational complexityUser identity/authority verificationEngineeringUser authentication
The application belongs to the technical field of trusted authentication, and discloses a remote user trusted authentication system, method and medium in an Internet of Things environment. The system comprises a registration center (RC), which is a trusted server and is used for safely registering or initializing other entities; an intelligent device, which is arranged in an environment and is used for collecting and transmitting data; a gateway, which supports interconnection between different protocol networks and has computing and storage capabilities; a user, who accesses remote intelligent devices through a login device; and the login device, which is used for user trustworthiness verification. The login device includes but is not limited to a mobile device, an intelligent card and a PC. Through the system and method, the trusted authentication of remote users can be realized, and safe communication between the user and the intelligent device is established. Meanwhile, the application can also solve the problems of public key cryptography complexity, user authentication vulnerability and symmetric cryptography limitations.
Owner:ZHONGNAN UNIVERSITY OF ECONOMICS AND LAW