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134results about How to "Improve calibration efficiency" patented technology
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Passive calibration method, system and equipment for dynamic target and medium
PendingCN121955899AAvoid calibration failureavoid precisionDefence devicesWave based measurement systemsSingular value decompositionRectangular coordinates
The invention relates to the technical field of photoelectric detection and radars, in particular to a calibration method, system and device for a radar and a laser anti-collision device and a medium, and aims to track and lock the same dynamic non-cooperative target through the laser anti-collision device and the phased array radar. Synchronously acquiring spherical coordinate observation data of the dynamic targets in the public view field under respective coordinate systems; and after the spherical coordinates are converted into rectangular coordinates, calculating a point set centroid, constructing a covariance matrix and performing singular value decomposition based on a rigid body transformation model, and directly solving a rotation matrix and a translation vector from a radar coordinate system to a laser anti-equipment-free coordinate system, thereby completing calibration. No external absolute coordinate reference is needed, only relative observation data of equipment is utilized, and the method has the advantages of being rapid in deployment, high in environmental adaptability, low in cost and high in calibration speed. The problems that in the prior art, a calibration system depends on RTK or a high-precision map, the environmental adaptability is poor, and the deployment requirement is high are solved.
Owner:苏州镭陌科技有限公司
A deep learning-based material curve image data automatic extraction system
The application provides a kind of material curve image data automatic extraction system based on deep learning, establishes the mapping relationship of pixel space to data space by recognizing coordinate system in image through automatic coordinate axis detection and scale identification module, and uses multi-curve instance segmentation module to identify each data curve in the graph as an independent object instance to generate independent pixel-level mask of each curve, then uses sub-pixel level curve vectorization module to convert pixel mask into mathematical curve representation and automatically extracts curve data based on the mapping relationship of pixel space to data space, finally provides an interactive verification interface for users to quickly review and high-level correction of the fully automatic extraction result. The application decomposes chart data extraction task into a series of intelligent modules that cooperate with each other, realizes end-to-end automation through synergistic effect, fundamentally solves the problem of curve overlap and intersection, and improves the efficiency and convenience of user correction of extracted data.
Owner:粤港澳大湾区(广东)国创中心
Sensor batch calibration method and system based on multi-vision fusion
The application belongs to the technical field of sensor calibration, and provides a sensor batch calibration method and system based on multi-vision fusion. First, all-around vision information of the sensor and the detection table is acquired. Pose estimation is performed by fusing the all-around vision information. Then, on the basis of the pose estimation, the sensor barycenter position, the grabbing point intensity and the avoidance of sensitive areas are considered, the grabbing point selection is optimized, the impedance control algorithm is used for flexible grabbing, the grabbing force size is automatically adjusted according to the sensor material and the surface friction coefficient, and the sensor lofting is realized. The problem of sensor deformation or damage caused by excessive grabbing force is avoided, the calibration demand of different specifications of sensors is realized, and the batch sensor calibration precision and efficiency are improved.
Owner:SHANDONG HOUDE MEASUREMENT & CONTROL TECH CO LTD
Navigation tool calibration method, apparatus and storage medium for surgical navigation
ActiveCN115399875Bachieve calibrationEasy CalibrationDiagnosticsSurgical navigation systemsRadiologyEngineering
The application relates to a navigation tool calibration method, device and storage medium for surgical navigation, and relates to the technical field of medical treatment. The method comprises the following steps: acquiring a first image, the first image being obtained by image acquisition equipment when the vertex of a navigation rod is in contact with a target positioning point on a second tracking tool; acquiring a first transformation matrix and a second transformation matrix based on the first image, the coordinates of at least three first positioning points in a first coordinate system and the coordinates of at least three second positioning points in a second coordinate system; and acquiring target coordinates of the vertex of the navigation rod in the first coordinate system based on the first transformation matrix, the second transformation matrix and the coordinates of the target positioning point in the second coordinate system. In the calibration process, an axis rotation process in the related art is avoided by introducing a tracking tool, the calibration effect of the navigation tool is improved, and the calibration efficiency is improved.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD +1
A power cable laying and correction device
PendingCN122092096AImprove calibration efficiencyGuaranteed calibration qualityApparatus for force/torque/work measurementApparatus for laying cablesPower cableControl theory
This invention relates to the field of cable laying technology, and particularly to a power cable laying and correction device. It includes a base, on which a guide cylinder is fixedly mounted. A bending detection component includes an input end mounting ring fixedly mounted on the base, a guide rod rotatably connected to the input end mounting ring, a second sleeve slidably sleeved on the guide rod, a conveying wheel rotatably mounted on the second sleeve, a third magnetic block fixedly mounted on the second sleeve, and a third electromagnet fixedly mounted on the guide rod. A third spring is disposed between the third electromagnet and the third magnetic block. By constructing a three-dimensional model of the cable, adaptive correction is performed, and the corrected cable is conveyed through a cable output component. This invention can automatically detect the cable diameter and construct a real-time three-dimensional model of the cable based on the detection results. The bending correction mechanism adaptively adjusts the cable according to the three-dimensional model, thereby automatically completing the cable correction, improving correction efficiency, and ensuring correction quality.
Owner:GUANNAN POWER SUPPLY BRANCH OF STATE GRID JIANGSU ELECTRIC POWER CO LTD
Magnetic moment coil calibration device and method
PendingCN121878580AAvoid difficult-to-accurate alignment issuesHigh precisionElectrical measurementsComputational physicsMagnetic flux
The invention belongs to the technical field of magnetic measurement testing, and particularly relates to a magnetic moment coil calibration device and method, which can realize that a magnetic moment coil keeps still in the calibration process, realizes the change of magnetic flux through the change of current, and then calculates the magnetic moment through the variable quantity of the magnetic flux. In the invention, the relative position between the calibrated magnetic moment coil and the standard constant magnetic field coil as the magnetic flux induction coil is always kept fixed in the calibration process, so that the problem that the magnetic axis is difficult to align accurately due to physical movement in the traditional drawing method or overturning method is thoroughly avoided; therefore, the reference alignment precision and reliability of calibration are improved. Magnetic moment coils with different sizes can be matched through the magnetic flux induction coils with different uniform area sizes, and the problem that the pulling or overturning operability of large magnetic moment coils is poor can be avoided.
Owner:YICHANG TESTING TECHNIQUE RESEARCH INSTITUTE
A method and system for online self-calibration of a lidar and camera without induction
The present application relates to a kind of laser radar and camera online self-calibration method and system without induction, the method includes: S1.in the process of vehicle driving, through multi-source trigger mechanism acquisition laser radar point cloud data and camera image data, simultaneously obtain vehicle motion state information and automatic driving perception system output result, the multi-source trigger mechanism includes time trigger, event trigger and cloud data mining trigger parameter degradation model;S2.the pre-processing and feature extraction of the multi-source data collected, obtain laser radar point cloud feature and camera image feature;S3.based on geometric constraint, motion consistency and perception result fusion, constructs multi-modal verification model, and carries out multi-dimensional verification to calibration parameter.The present application not only reduces the artificial maintenance cost, through automatic means maintenance vehicle state to achieve sensor calibration parameter degradation self-detection and self-calibration without induction, and improves the reliability and attendance rate of automatic driving vehicle.
Owner:东风悦享科技有限公司
Medical scanning equipment correction method, medical scanning equipment and correction auxiliary equipment
PendingCN121987238AReduce maintenance costsEnsure optimal conditionsRadiation diagnosticsAssistive equipmentBiomedical engineering
The invention relates to a medical scanning equipment correction method, medical scanning equipment and correction auxiliary equipment. Generating a correction scheme in response to a correction instruction input by a user, correcting the medical scanning equipment based on the correction scheme, obtaining correction data corresponding to the correction scheme, and transmitting the correction data to correction auxiliary equipment of the medical scanning equipment, so that the correction auxiliary equipment displays the correction data, and monitoring and correcting the medical scanning equipment based on the correction data. According to the one-button automatic correction method provided by the embodiment of the invention, when the medical scanning equipment is corrected, the correction data corresponding to the correction scheme is sent to the correction auxiliary equipment in real time, and the correction auxiliary equipment is used for assisting remote monitoring correction, so that professional technicians do not need to carry out conventional intervention on the medical scanning equipment; and intervention is performed only when abnormal correction occurs, so that the maintenance cost of the medical scanning equipment can be reduced, and meanwhile, the correction efficiency of the medical scanning equipment is improved.
Owner:SHANGHAI UNITED IMAGING HEALTHCARE
A fiber-optic current sensor calibration platform
ActiveCN224303840Ureduce manufacturing costAvoid entanglementMeasurement instrument housingCurrent transducerElectric machinery
The utility model relates to sensor technical field provides a kind of optical fiber current sensor calibration platform, comprising: bottom, still include: synchronous drive mechanism, set in the top of the bottom. The utility model, by controller control motor start, make its output shaft drive bidirectional screw rod rotate, can make two movable strips synchronous to middle mobile, can synchronous clamping mechanism and limit mechanism move to middle, make external plug and optical fiber current sensor connect, make slide bar along the inside of guide groove slide to one side, make the clamping plate gradually move to optical fiber current sensor, clamping and fixing to optical fiber current sensor, make the ball along the inside of guide frame slide, synchronous drive limit plate to one side moves, will be placed groove two position place shelter, make limit plate to external plug limit, like this, only need to use a motor, i.
Owner:HUBEI HUAGUAN OPTOELECTRONIC MEASUREMENT & CONTROL EQUIP CO LTD
Very low frequency circuit frequency response parameter calibration system
A very low frequency circuit frequency response parameter calibration system is suitable for high-precision frequency response calibration of a signal processing circuit working in a frequency range of 300 Hz to 100 kHz. The system comprises a signal acquisition module and an FPGA. The signal acquisition module comprises three synchronous acquisition channels, two output channels of a to-be-calibrated circuit, and a GPIO outputting a calibration signal of the FPGA. The FPGA is configured to generate a calibration signal after receiving a configuration instruction of an upper computer system. The calibration signal is divided into three paths: one path enters a very low frequency signal acquisition module as a reference signal for calibration comparison; the other two paths are injected into two input channels of the to-be-calibrated circuit to drive the to-be-calibrated circuit to generate corresponding outputs; the three sampling channels of the very low frequency signal acquisition module are synchronously controlled to start data acquisition and complete isochronous sampling tasks, ensuring the synchronization of the three paths of data in the time domain; after sampling is completed, the three-channel data is preprocessed, and then the preprocessed data is uploaded to the upper computer system for visual processing.
Owner:WUHAN UNIV
Calibration device for methane sensor
ActiveCN224122567UEasy CalibrationImprove reliabilityMaterial analysisInterference resistanceMultiple delivery
The utility model belongs to the technical field of sensor calibration, and particularly relates to a calibration device for a methane sensor, which comprises a shell, a support plate, a mounting plate, a control panel, a plurality of storage tanks, a support disc, an adjusting component I, an adjusting component II, a sensor connecting seat, an adjusting component III and a plurality of conveying pipes, a supporting column is fixedly installed in the shell, the supporting discs are rotatably installed on the supporting column, the multiple storage tanks are installed on the supporting discs in a clamped mode and arranged with the supporting column as the center, the supporting plate is rotatably installed in the shell, and the first adjusting assembly is arranged on the supporting plate and connected with the supporting column. The sensor connecting base is fixedly installed on the supporting plate, and the second adjusting assembly is arranged on the supporting plate and connected with the sensor connecting base. The system has the advantages of reasonable design, simple operation, high calibration efficiency, good accuracy, strong anti-interference capability, high safety and the like, and has high practical value and popularization value.
Owner:JIYUAN DADI COMM TECH
Quick disassembly and assembly calibration mechanism for radiation detection equipment
ActiveCN224231981UImplement switching controlEnsure accurate switchingRadiation measurementControl engineeringTesting Methods
The utility model relates to the technical field of radiation detection equipment, in particular to a quick disassembly and assembly calibration mechanism for radiation detection equipment, which comprises a base, a support frame, an adjusting ring and a calibration assembly. The calibration assembly comprises a segmentation part, a driving module, a conversion part, a voltage stabilization part, a synchronization module and a distribution module, signal segmentation transmission is achieved through the segmentation part, the driving module and the conversion part are matched to switch calibration areas, the voltage stabilization part guarantees stable output of signals, the synchronization module achieves synchronous adjustment of the signals, and the distribution module evenly distributes the signals. The calibration mechanism can be quickly disassembled and assembled, the calibration efficiency and adaptability are remarkably improved, and the requirements of modern radiation detection equipment for high precision, quick response and flexible adjustment are met.
Owner:HENAN JUNLIDE TESTING TECH SERVICE CO LTD
Calibration mechanism for wide-range torquemeter
ActiveCN224122096UHigh precisionimprove featuresForce/torque/work measurement apparatus calibration/testingClassical mechanicsControl theory
The utility model discloses a calibration mechanism for a wide-range torquemeter, which comprises a calibration arm connected with the torquemeter and used for transmitting and applying torque; the gradienter is arranged on the calibration arm and used for monitoring whether the calibration arm is in a horizontal state or not; the speed reducer is connected with the calibration arm through a force sensor, and the speed reducer provides power for vertical linear motion; one end of the first rotating connecting rod is movably connected with an output shaft of the speed reducer, and the other end of the first rotating connecting rod is connected with one end of the force sensor; one end of the second rotating connecting rod is connected with the other end of the force sensor, and the other end of the second rotating connecting rod is movably connected with one end of the calibration arm; through the above mode, the calibration error can be reduced, the operation difficulty in the calibration process can be reduced, the use of weights can be avoided, the calibration efficiency can be improved, and the calibration device can be suitable for the calibration of a wide-range torquemeter.
Owner:SUZHOU AX MOTOR TECH CO LTD
A method, apparatus, equipment and medium for calibrating a fracture model of metallic materials.
This invention discloses a calibration method, apparatus, equipment, and medium for a fracture model of metallic materials. The method includes: determining initial fracture parameters and initial instability parameters of stress triaxiality to match calibration experiments; wherein the calibration experiments include at least one of uniaxial tensile tests, notched tensile tests, tension-shear tests, shear tests, compression tests, and biaxial tensile tests; each calibration experiment is matched with at least one stress triaxiality; updating the initial fracture parameters and initial instability parameters until both fracture parameters and instability parameters meet preset strain conditions; and determining the calibration result of the fracture model based on the fracture parameters and instability parameters of the stress triaxiality. This technical solution solves the problem of low accuracy in the calibration of fracture models of metallic materials, effectively improving calibration efficiency while increasing accuracy, and decoupling multi-condition simulations.
Owner:AUTOMOBILE RES INST OF TSINGHUA UNIV IN SUZHOU XIANGCHENG +1
High-speed rotor driving balance self-adjusting counterweight ring
ActiveCN224191760Uquick installationquick releaseMechanical energy handlingControl theoryScrew thread
Owner:DONGGUAN RONGWANG PRECISION HARDWARE CO LTD
Product correction mechanism for display screen detection
ActiveCN224202708Uhigh degree of automationaccurate locationOptical apparatus testingMechanical engineeringPhysics
The utility model discloses a product correction mechanism for display screen detection, which comprises a correction platform, a platform bottom plate, a screen fixing assembly and an FPC (Flexible Printed Circuit) fixing assembly, and the screen fixing assembly and the FPC fixing assembly are respectively arranged at two ends of the top of the platform bottom plate. The screen fixing assembly comprises an adsorption plate, and a first adsorption assembly is arranged in the adsorption plate and used for bearing and adsorbing the screen end. The FPC fixing assembly comprises dragging blocks, a theta-axis alignment assembly, an X-axis alignment assembly and a Y-axis alignment assembly, the dragging blocks are arranged at intervals, and second adsorption assemblies are arranged in the dragging blocks and used for bearing and adsorbing the FPC ends. The theta-axis alignment assembly, the X-axis alignment assembly and the Y-axis alignment assembly are sequentially arranged between the dragging block and the platform bottom plate in the third direction and used for adjusting and driving the dragging block in the fourth direction, the first direction and the second direction and driving the FPC end to move so that the FPC end can extend in the first direction, manual intervention can be reduced through automatic design of the alignment assemblies, and the production efficiency is improved. And the correction automation degree is improved.
Owner:SUZHOU GACII OPTOELECTRONICTECHNOLOGY CO LTD
Three-dimensional digital management of building pipeline node assisted positioning method
ActiveCN121685872BRealize automatic identificationImprove robustnessCharacter and pattern recognitionBiological modelsDisplay designAlgorithm
The application discloses a three-dimensional digital management building pipeline node auxiliary positioning method, and relates to the technical field of building construction. The method comprises the following steps: step one, collecting multi-source data of a plurality of equipment terminals, fusing the multi-source data through adaptive federated filtering, and outputting three-dimensional coordinates and component parameters of nodes; step two, pre-acquiring a BIM attribute graph of a building pipeline, constructing a measured attribute graph based on the three-dimensional coordinates and the component parameters of the nodes, screening out deviation nodes by matching the spatial position and semantic attributes of the BIM attribute graph and the measured attribute graph through a graph convolution network, correcting the deviation nodes by using reinforcement learning, and outputting a corrected calibration model; and step three, automatically highlighting corresponding pipeline components in the BIM based on the three-dimensional coordinates of the nodes and the calibration model, and superimposedly displaying design parameters and historical maintenance records; and automatically deciding a correction strategy according to the deviation type and grade by using a deep Q network, so that intelligent and iterative correction of the deviation nodes is realized, and manual intervention is greatly reduced.
Owner:XIAN XINGXUN INTELLIGENT COMM TECH CO LTD
Automatic calibration method and device for detector tester, electronic equipment and medium
PendingCN121995528Aeasy to operateImprove calibration accuracyGeological measurementsGeophoneMeasurement test
The invention provides an automatic calibration method and device for a detector tester, electronic equipment and a medium, and relates to the field of calibration measurement test.The initial moment T0 of a detector for obtaining a damped oscillation signal is obtained through the detector tester, and the method comprises the steps that i-M, i-M + 1 and i-M + 2 are obtained, and sample point signals x [i-M], x [i-M + 1], x [i-M + 2]... x [i] corresponding to the moment i are obtained, and calculating a filtered signal y [i-1] through a formula, when x [i] is greater than G * y [i-1] and G is a multiple of a threshold coefficient, determining a starting moment T0 of a damped oscillation signal, obtaining a damping coefficient, a natural frequency and sensitivity based on T0, and automatically calibrating a detector tester based on the damping coefficient, the natural frequency and the sensitivity. According to the method, the detector tester is automatically calibrated, complicated operation of calibration personnel is avoided, and the calibration precision and the calibration efficiency are improved.
Owner:CHINA NAT PETROLEUM CORP +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
Converter station valve side bushing resistance divider self-calibration method and system
The application discloses a converter station valve side sleeve pipe resistance divider self-calibration method and system, relates to the technical field of resistance divider self-calibration, and comprises the following steps: configuring a sensor, and collecting resistance divider data; a model of the relationship between the resistance value of the valve side sleeve pipe resistance divider and measurement error is established; the output resistance data is input into an optimized IABC algorithm, and iterative search is performed according to the model and the input data to determine the optimal resistance value setting and realize the predetermined calibration target. The converter station valve side sleeve pipe resistance divider self-calibration method provided by the application considers the interactive effect of voltage and temperature, considers the influence of the actual working environment on the resistance, and selects the optimal resistance under the actual working state. The IABC algorithm improves the efficiency and precision of calibration by simulating the behavior of bees searching for food and the judgment of collective fitness, so that the resistance divider can be automatically adjusted to the optimal state under different conditions, and the stable operation of the converter station is ensured.
Owner:南京中鑫智电科技有限公司
Vibration reduction fastener suitable for assembly type structure
ActiveCN224199729UImprove calibration efficiencysimple structureRail fastenersBuckle FastenerRail transit
The utility model belongs to the technical field of rail transit, and particularly relates to a vibration reduction fastener suitable for an assembly type structure, which comprises an iron base plate, an under-rail elastic cushion, an under-plate elastic cushion, a locking upright post, a nylon bushing, a locking cover plate, a spike and an elastic strip, and the locking upright post is vertically arranged in through holes in the iron base plate and the under-plate elastic cushion; the lower end face of the locking stand column is pressed on the track foundation, and the upper end face is combined with the locking cover plate. The nylon bushing is sleeved on the periphery of the locking upright post; a through hole is formed in the locking cover plate, a long round hole is formed in the locking stand column, the spike vertically penetrates through the through hole in the locking cover plate and the long round hole to fix the damping fastener to a supporting stand column of a ballastless track structure, the locking cover plate can move relative to the locking stand column, and then the relative position of the spike in the long round hole is adjusted. And the gauge adjustment is realized. The vibration reduction fastener has the advantages of being small in number of components, small in total weight, low in manufacturing cost, good in vibration reduction effect and convenient to use.
Owner:CHINA RAILWAY DESIGN GRP CO LTD
Multi-agent material computation consistency calibration method
PendingCN122266571Aavoid defectsImprove efficiencyProgram initiation/switchingInterprogram communicationTheoretical computer scienceComputational model
The application discloses a multi-agent material calculation consistency calibration method, belonging to the cross field of material science, artificial intelligence and computational physics. The method adopts a master-slave structure multi-agent system, containing one master agent and at least three slave agents. The master agent is responsible for overall coordination, embedding physical mechanism constraints, consistency calibration and output results. The method steps are: constructing a calculation system, introducing physical mechanism constraints and embedding slave agent calculation models, collecting calculation data, performing bias analysis, adjusting parameters or correcting results through iterative calibration, and finally verifying and outputting the final results. The application introduces physical mechanism constraints, combines bias analysis and iterative calibration, and solves the problems of poor consistency of existing multi-agent material calculation results and easy violation of physical laws. Experiments show that the method reduces the deviation of the calculation results and the experimental measured values to below 3%, improves the calibration efficiency by more than 40%, and improves the calculation accuracy by more than 35% compared with the prior art, thereby improving the accuracy and engineering practicability of high-throughput calculation of material performance.
Owner:SHANGRAO NORMAL UNIV +1
A two-beam three-color light prism and method of using the same
PendingCN122506675AQuickly determine and adjust relative spatial anglesDetermine and adjust relative spatial angles
The application discloses a two-beam three-color light prism and a use method thereof, and relates to the field of optical elements, which comprises a prism main body, wherein the prism main body comprises: a first incidence surface configured to receive an A light beam from a first direction, the A light beam has a first angle alpha with a horizontal plane, wherein 18 DEG <= alpha <= 28 DEG, the horizontal plane is a plane perpendicular to the longitudinal direction of the prism main body, and the A light beam is a light beam with the first angle alpha as an optical axis; and a second incidence surface configured to receive a B light beam from a second direction; the application binds specific incidence angles with colors of emergent light, provides intuitive visual feedback for users, enables users to quickly judge and adjust the relative spatial angle between the equipment and the light source without complex instruments, realizes a "blind control" type operation, and greatly improves the ease of use and calibration efficiency of the equipment.
Owner:SHENZHEN SANRENYI TECH CO LTD
Gas state monitoring sensor calibration device
ActiveCN224202486UGuaranteed circulationavoid interferenceInstrumentsControl engineeringProcess engineering
The utility model discloses a gas state monitoring sensor calibration device, which relates to the technical field of sensor calibration and comprises a calibrator, a standard micro-water sensor, a standard pressure sensor, a gas circuit adjusting system, a humidity calibration module and a pressure calibration module. The calibrator is provided with a sealing cavity, a first port and a second port, wherein the first port and the second port are communicated with the sealing cavity. According to the technical scheme of the utility model, the humidity calibration module and the pressure calibration module are adopted, so that the dual calibration function of gas humidity and pressure parameters can be realized, the problem of single function of the existing calibration device is solved, multi-parameter integrated calibration is realized, the calibration efficiency is improved, and the application range is widened; by adopting the modular design and switching the four pipelines through the on-off control assembly, a user can select different humidity calibration modules or pressure calibration modules according to needs, the operation is convenient, and the automation level and the operation consistency of the system are improved.
Owner:TBEA TECH INVESTMENT CO LTD
Sample analyzer and control method thereof
PendingCN121831181AReduce structural design requirementsReduce the difficulty of structural designMaterial analysis by optical meansPhysical chemistryProcess engineering
The invention is applicable to the field of in vitro diagnostic equipment, and discloses a control method of a sample analyzer and the sample analyzer, and the control method of the sample analyzer comprises the following steps of: controlling a first sample dispensing assembly to add a calibrator into a first reaction container; controlling an incubation assembly to incubate a mixture at least containing a calibration product and a reagent to obtain a first to-be-detected solution; obtaining a first optical measurement result of the optical measurement assembly on the first to-be-measured liquid; obtaining first calibration data according to the first optical measurement result and the known concentration of the target object in the calibrator; obtaining second calibration data according to the first calibration data and a deviation function; the control method further comprises the following steps: obtaining a detection result of the target object in the first sample according to the second optical measurement result and the first calibration data; and obtaining a detection result of the target object in the second sample according to the third optical measurement result and the second calibration data. According to the invention, the consumption of calibrators and the project calibration duration can be reduced.
Owner:SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
Methods, devices and electronic equipment for calibrating camera extrinsic parameters
ActiveCN116524043BImprove calibration efficiencyimprove accuracyImage analysisCharacter and pattern recognitionCarriagewayEngineering
This application discloses a method, apparatus, and electronic device for calibrating camera extrinsic parameters. The method includes: acquiring road perception information transmitted by roadside equipment, the road perception information including first angle information of an autonomous vehicle relative to lane lines, and the roadside equipment being at least one from a preset set of roadside equipment; acquiring a first road image captured by the camera of the autonomous vehicle, and performing lane line detection on the first road image to obtain a first lane line detection result, the first lane line detection result including first lane line edge detection results; determining a first camera extrinsic parameter correction value for the autonomous vehicle based on the road perception information and the first lane line detection result; and determining a calibration result for the camera extrinsic parameters based on the first camera extrinsic parameter correction value. This application corrects the camera extrinsic parameters of the autonomous vehicle by using a pre-established and regularly maintained set of roadside equipment, eliminating the need for calibration in a fixed calibration workshop or external calibration site, thus improving calibration efficiency and accuracy.
Owner:ZHIDAO NETWORK TECH (BEIJING) CO LTD
Position correction method, device and equipment, storage medium and laser annealing machine table
The invention discloses a position correction method, device and equipment, a storage medium and a laser annealing machine table, and relates to the technical field of semiconductors, the disclosed method is applied to the laser annealing machine table, the laser annealing machine table comprises a process cavity, a motion platform is arranged in the process cavity, and a wafer is arranged on the motion platform. The surface of a wafer is provided with at least one calibration pattern formed through a preset laser annealing process, and the method comprises the following steps: shooting the wafer on a motion platform to obtain a wafer image; judging whether the center position of the wafer is aligned with the preset center position of the laser annealing machine according to the calibration pattern in the wafer image; when the center position of the wafer is not aligned with the preset center position of the laser annealing machine, determining the offset of the center position of the wafer relative to the preset center position according to the calibration pattern; and according to the offset, a motion platform bearing the wafer is driven to move, so that the center position of the wafer is aligned with the preset center position, and the correction efficiency is effectively improved.
Owner:SHENZHEN PENGXINXU TECH CO LTD
A high-efficiency correction device for correcting bracket parts
ActiveCN224406106UReduce work intensityImprove calibration efficiencyStructural engineeringControl theory
Owner:CHENGDU HOMIN TECH
A DWI-EPI image Nyquist ghost correction method
ActiveCN115345953BAvoid Correction DefectsImprove the correction effectImage enhancementImage analysisData fillingMR - Magnetic resonance
This invention relates to a method for Nyquist ghosting correction in DWI-EPI images, comprising the following steps: acquiring raw magnetic resonance imaging (MRI) data; segmenting the raw MRI data; extracting reference scan data for reference scan correction; filling the remaining data into corresponding k-space locations to form k-space data in the (Kx,Ky) domain; transforming both the k-space data in the (Kx,Ky) domain and the reference scan data into (x,Ky) mixed-domain data; performing reference scan correction on the (x,Ky) mixed-domain data to obtain first corrected data; transforming the first corrected data in the (x,Ky) mixed-domain into (Kx,Ky) domain data; performing referenceless scan correction on the (Kx,Ky) domain data to obtain second corrected data; performing zero-padding on the second corrected data to obtain third corrected data; and performing a two-dimensional inverse Fourier transform on the third corrected data to obtain an artifact-free image. Compared with existing technologies, this invention has advantages such as good correction effect and short correction time.
Owner:SHANGHAI KANGDA KALEVO MEDICAL TECH CO LTD
A multi-channel gas mixing calibration device
This invention proposes a multi-channel gas distribution calibration device, comprising a multi-inlet, one-outlet solenoid valve assembly. The inlets of the solenoid valves in the assembly are each connected to an inlet nozzle via pipelines. The outlets of the solenoid valves are sequentially connected via pipelines to a proportional valve, an orifice flow meter, and a three-way connector. The second port of the three-way connector is connected to a glass rotor flow meter, which is connected to an exhaust gas port. The third port of the three-way connector is connected to an outlet gas port. This invention, by connecting nine standard gas lines and one zero gas line through the multi-inlet, one-outlet solenoid valves, can achieve calibration of one gas at multiple concentrations or nine different gases. It eliminates the need for manual gas cylinder replacement and pipeline switching, enabling rapid gas switching and ensuring no cross-contamination. This significantly reduces the impact of manual intervention and operation time, improving calibration efficiency and reliability.
Owner:QINGDAO ZHONGRUI INTELLIGENT INSTR