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108results about How to "Quick calibration" patented technology
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Self-adaptive calibration method and system for brain-computer interface earphone
PendingCN119576120ALower barriers to useReduce calibration timeInput/output for user-computer interactionDigital data protectionEvaluation resultElectro encephalogram
The invention relates to the technical field of brain-computer interfaces, in particular to a self-adaptive calibration method and system for a brain-computer interface earphone, and the method comprises the following steps: obtaining electroencephalogram data; based on the electroencephalogram data, constructing an initial model through federal learning; selecting a user specific sample by using an active learning strategy; performing dynamic parameter optimization on the initial model; based on the result of the dynamic parameter optimization, adaptive personalized calibration is executed; performing anomaly detection and correction on the result of the self-adaptive personalized calibration; performance evaluation is carried out on the result obtained after anomaly detection and correction, the evaluation result is fed back to the previous steps, and the steps form a closed-loop optimization process; through the combination of federal learning and active learning, the calibration time is shortened from 45 minutes of a traditional method to about 5 minutes, and the efficiency is improved by nearly 9 times; the accuracy rate of the method reaches 95.8% and is improved by 8.6% compared with that of a traditional method.
Owner:COSONIC INTELLIGENT TECH CO LTD
Reinforcement cage positioning device and reinforcement cage lowering method
PendingCN119507430Aquick calibrationachieve regulationClimate change adaptationBulkheads/pilesClassical mechanicsStructural engineering
The invention relates to the technical field of reinforcement cage lowering, in particular to a reinforcement cage positioning device and a reinforcement cage lowering method.The reinforcement cage positioning device comprises a bearing vehicle, an adjusting mechanism, a top plate and a lowering calibration assembly, the adjusting mechanism is installed at the top of the bearing vehicle, the top plate is installed at the top of the adjusting mechanism, and the lowering calibration assembly is installed on the top plate; the adjusting mechanism comprises a sliding table, a first lead screw sliding table, a first connecting plate, a transverse plate, a vertical adjusting assembly and two sliding rails, the two sliding rails are symmetrically arranged at the top of the bearing vehicle, the sliding table is slidably installed on the two sliding rails, the first lead screw sliding table is horizontally arranged at the top of the bearing vehicle, and the first connecting plate is arranged on the first lead screw sliding table; the first connecting plate is installed at the moving end of the first lead screw sliding table and connected with the sliding table, the transverse plate is horizontally arranged on the outer wall of the top end of the sliding table, the vertical adjusting assembly is installed at the top of the transverse plate, and the purpose of rapid calibration is achieved without affecting the positioning efficiency of the reinforcement cage.
Owner:CHINA RAILWAY 20TH BUREAU GRP MUNICIPAL ENG CO LTD
Zoom self-calibration method for focal length of coherent wind lidar telescope
ActiveCN119644308AAccurate CalibrationAccurate inversion of backscatter coefficientWave based measurement systemsICT adaptationRadar systemsWind lidar
The invention discloses a zoom self-calibration method for the focal length of a coherent wind lidar telescope. The zoom self-calibration method comprises the following steps: (1) performing quick and continuous zoom on a lidar to acquire echoes; (2) carrying out normalization processing on the echo signal curve; (3) determining the distance corresponding to the maximum value of the normalized signal; (4) determining a real telescope focal length according to the signal maximum value position; (5) fitting to obtain a telescope zooming calibration curve; according to the invention, the relation curve between the focal length of the laser radar telescope and the displacement of the focusing mechanism can be rapidly calibrated, rapid setting and effective recording of the real focal length are ensured, and the measurement precision and stability of a laser radar system are improved.
Owner:NANJING UNIV OF INFORMATION SCI & TECH
Laser vibration meter series reciprocating type optical frequency modulation calibration method and device
ActiveCN119595081Aachieve calibrationPortable and convenientSubsonic/sonic/ultrasonic wave measurementUsing wave/particle radiation meansSource planePlane mirror
The invention discloses a laser vibration meter series reciprocating type optical frequency modulation calibration method and device, and belongs to the field of photoelectric measurement. The calibration device is mainly composed of a calibrated laser vibration meter, a first acousto-optic modulator, a second acousto-optic modulator, a lens, a first sinusoidal signal source, a second sinusoidal signal source, an FM signal source and a plane mirror. Aiming at a laser signal emitted by the laser vibration meter, the reversibility characteristic of a light path is utilized, a straight-line-shaped light path structure is used, a secondary light frequency modulation mode of the same group of optical devices is combined with secondary light frequency translation to realize output frequency translation and modulation control of the laser vibration meter, and a laser Doppler effect caused by different vibration waveform magnitude values is simulated. And the modulated laser is completely returned to the calibrated laser vibration meter in the original path, so that the change waveform of the vibration velocity value is replaced by the change waveform of the frequency value, and the calibration of the laser vibration meter is realized. The device has the advantages of portability, wide frequency range, wide amplitude range calibration, high precision and good stability.
Owner:BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
Three-dimensional geometric reconstruction camera calibration method and system
InactiveCN119672129Aquick implementationAccurate realizationImage analysisPattern recognitionCamera lens
The invention discloses a three-dimensional geometric reconstruction camera calibration method and system, and relates to the technical field of three-dimensional geometric reconstruction, and the method comprises the steps: S1, image collection; s2, automatic calibration point selection; s3, estimating camera parameters; s4, distortion correction is carried out; and S5, performing three-dimensional reconstruction verification. According to the three-dimensional geometric reconstruction camera calibration method and system, a calibration point does not need to be selected manually, the calibration process is simplified, the complexity and time cost of the calibration process are reduced, a high-precision calibration result can be obtained without shooting a plurality of plane images and carrying out a plurality of optimization iterations, and the calibration efficiency is improved. The calculation amount and the time cost are further reduced, and camera calibration can be quickly and accurately realized; in addition, nonlinear distortion of a camera lens is fully considered, the calibration precision is further improved, and the method is particularly suitable for the situation that a wide-angle lens is used or an image contains large distortion.
Owner:SUZHOU BAICHUAN DATA TECH CO LTD
Phased-array antenna calibration test method and system, and storage medium
PendingCN119519857Ahigh speedimprove accuracyTransmitters monitoringReceivers monitoringComputer hardwareFpga chip
The invention discloses a phased-array antenna calibration test method and system and a storage medium, and belongs to the technical field of phased-array antennas. When the phased-array antenna is calibrated, an upper computer, a wave controller and a vector network are converted into instantaneous pulses of a hardware circuit through information interaction of a specific protocol and a complex process. A Flash storage chip and an FPGA chip are arranged in the wave control box, before a phased-array antenna is prepared for calibration testing, an upper computer writes a calibration instruction set into the Flash of the wave control box, and a vector network is set to be in an external trigger mode. In the calibration process, the condition that the upper computer sends a calibration instruction to the wave controller and the wave control box analyzes the calibration instruction and then issues the calibration instruction is avoided, but the wave control box directly sends the calibration instruction and triggers the vector network, and the vector network collects and caches data. And after receiving a calibration completion command sent back by the wave control box, the upper computer reads the cached data at one time through the vector network FIFO function and then analyzes and displays the cached data. According to the method, the communication overhead between the upper computer and the wave control and vector network during calibration is saved, the calibration speed and accuracy are improved, and the labor cost is saved.
Owner:CHENGDU RUIXIN SHENGTONG ELECTRONIC TECH CO LTD
Automatic calibration method and system based on line structured light measurement system, medium and equipment
The invention relates to the field of vision measurement, and discloses an automatic calibration method, system, medium and equipment based on a line structured light measurement system.The automatic calibration method comprises the steps that internal parameters of a camera are determined, laser stripes emitted by laser emitters form light planes, and the laser emitters are adjusted to enable the laser stripes to intersect; two light plane coordinate systems with a space conversion relation are established, intersecting light planes form intersecting lines in a three-dimensional space, the checkerboard calibration plate is placed at the position of a third plane, and pixel coordinates of laser stripe center points are extracted; pixel coordinates of the stripe center point are converted into a camera coordinate system, specific space coordinates of the stripe point cloud on the calibration plate are obtained, and then the actual length of each section of the laser stripe is obtained; one-to-one corresponding space coordinates of the stripe point clouds in the light plane coordinate system and the camera coordinate system are obtained according to space conversion, an expression of a light plane in the light plane coordinate system in the camera coordinate system is obtained according to a conversion matrix between the two coordinate systems, and calibration is completed.
Owner:BEIJING INFORMATION SCI & TECH UNIV
Weighing double-flow type cloud optimization flotation dosing control method and system
ActiveCN119387049AadaptableHigh control precisionFlotationTotal factory controlImaging processingNetwork connection
The invention relates to a weighing double-flow type cloud optimization flotation dosing control method and system, and belongs to the field of mineral separation automation. The invention comprises a weighing double-flow type automatic dosing system, a weighing double-flow type automatic dosing control method, a dosing system cloud optimization system and a dosing system cloud optimization method. The weighing double-flow type automatic dosing system comprises a control host system and a dosing control device; the weighing double-flow type automatic dosing control method comprises a weighing type dosing flow detection method and a coarse-fine double-flow electromagnetic valve type dosing control method. The dosing system cloud optimization system comprises a foam camera, an image processing host, a network connection device and a cloud server. The medicine adding system cloud optimization method comprises a cloud medicine adding system self-optimization method and a cloud artificial expert cooperative work method. According to the invention, the dosing amount can be accurately controlled, the system adapts to changes of chemicals and environment temperature, the dosing system can be automatically optimized according to flotation conditions, and the system plays a positive role in stabilizing and improving flotation process indexes.
Owner:KUNMING UNIV OF SCI & TECH
Hot water circulating pump with coupler
PendingCN121952885Areduce wearreduce vibrationSpecific fluid pumpsPump componentsElectric machineCoupling
The invention discloses a hot water circulating pump with couplings, and relates to the field of centrifugal pumps, the hot water circulating pump comprises a base, the top surface of the base is fixedly connected with a base plate, a protective cover, a first support and a pump body, and the end face of the pump body is provided with a machine seal gland. Therefore, maintenance cost is reduced, potential safety hazards are reduced, the coaxiality calibration process is simplified, repeated measurement and adjustment of the position of the motor are not needed, time and labor are saved, coaxiality can be guaranteed, overload protection can be achieved, overload burning of the motor can be avoided, safety accidents are reduced, the operation safety of the whole hot water circulation system is improved, and the service life of the hot water circulation system is prolonged. And overload protection can be adaptively changed according to the size of the motor, so that coaxiality calibration and overload protection adjustment are synchronously carried out, secondary measurement and adjustment are not needed, and the automation degree of the device is improved while time and labor are saved.
Owner:JIANGSU LIXIN PUMP IND GROUP CO LTD
Welding laser center calibration device of camera module
ActiveCN222626475Uquick calibrationEasy to adjustLaser beam welding apparatusCamera moduleMechanical engineering
The utility model provides a welding laser center calibration device for a camera module. The welding laser center calibration device comprises a point inspection rod, an energy point inspection instrument, a base and a lifting table. The base is arranged on the upper surface of the lifting table, and the lifting table drives the base to move upwards; the energy point inspection instrument is installed on the base, the point inspection rod is vertically arranged on the upper surface of the energy point inspection instrument, and the point inspection rod is provided with a detection channel penetrating through the upper surface and the lower surface of the point inspection rod along the center line of the point inspection rod. And adjustment is convenient, the calibration precision is high, and the subsequent welding quality can be ensured.
Owner:KUNSHAN QIUTI PHOTOELECTRIC TECH CO LTD
Rapid calibration tool for pre-installation of electromechanical equipment
PendingCN121893007AEasy to fixImprove installation efficiencyWork holdersMetal working apparatusHydraulic cylinderElectric machine
The invention belongs to the technical field of electromechanical installation equipment, and particularly relates to a rapid calibration tool for pre-installation of electromechanical equipment, the rapid calibration tool comprises a bottom plate, a top plate and a lifting plate, universal wheels are installed on the bottom plate, and a screw driven by a lifting motor is installed on the lifting plate; a fixed block is installed on the lifting plate, a plurality of sets of rotating rollers are installed on the fixed block, sliding barrels are installed on the rotating rollers, and a hydraulic cylinder is installed between the fixed block and the lifting plate; a mounting frame is mounted on the polished rod, a first electric push rod is mounted on the mounting frame, and a contact block is mounted on the first electric push rod; a second electric push rod is mounted on the contact block and pushes the electromechanical equipment in the x-axis direction; the device is simple in structure, the position of the electromechanical equipment can be conveniently adjusted in multiple directions, the mounting hole position of the electromechanical equipment is rapidly calibrated, and the mounting efficiency of the electromechanical equipment is improved.
Owner:TIANJIN YINGXIN TECH CO LTD
Laser vibration meter series reciprocating type optical frequency modulation calibration device and traceability method
PendingCN119595082ASolve the Stability Conundrumachieve calibrationSubsonic/sonic/ultrasonic wave measurementUsing wave/particle radiation meansBeam splitterPlane mirror
The invention discloses a laser vibration meter series reciprocating type optical frequency modulation calibration device and a traceability method, and belongs to the field of photoelectric measurement. The calibration device comprises a calibrated laser vibration meter, a first acousto-optic modulator, a second acousto-optic modulator, a lens, a first sinusoidal signal source, a second sinusoidal signal source, an FM signal source, a first plane mirror, a second plane mirror, a lambda / 4 wave plate, a first polarizing beam splitter, a second polarizing beam splitter, a third polarizing beam splitter, a photoelectric detector, a data acquisition system and a lambda / 2 wave plate. The reversibility characteristic of an optical path is utilized, a linear measuring optical path structure is used, output frequency translation and modulation control of the laser vibration meter are achieved in a secondary optical frequency modulation mode of the same set of optical devices in combination with secondary optical frequency translation, and modulated laser is completely returned to the laser vibration meter in an original path. The effect of the laser Doppler effect of vibration is simulated, a calibration value of the vibration speed is obtained based on a Doppler frequency shift formula, and the calibration value is traced to the time frequency quantity of a data acquisition system.
Owner:BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
Binocular ranging system calibration method based on electronic map
PendingCN119618071Aquick calibrationLow deployment requirementsUsing optical meansParallaxComputer graphics (images)
The invention relates to the technical field of binocular stereoscopic vision, and discloses a binocular ranging system calibration method and system based on an electronic map. Selecting a first target reference object, adjusting the observation angle of the binocular distance measurement system, and obtaining a plurality of groups of images of the first target reference object at preset positions in the image; calculating a correction parameter of the binocular distance measurement system based on the plurality of groups of images of the first target reference object; selecting a plurality of second target reference objects on the electronic map according to predetermined constraints, acquiring a plurality of groups of images of the second target reference objects, and calculating a parallax value of the binocular ranging system by combining the distance from the second target reference objects on the electronic map to the binocular ranging system and the correction parameters; the calibration value of the distance measurement parameter of the binocular distance measurement system is obtained according to the parallax value, calibration of the binocular distance measurement system is completed, the calibration of the binocular distance measurement system is achieved by selecting the second target reference object on the electronic map, and the applicability of the binocular distance measurement system is improved.
Owner:HUNAN AOYING CHUANGSHI INFORMATION TECH CO LTD
A method of calibrating a curved surface coating thickness measurement
The application provides a kind of curved surface plating thickness measurement calibration method.The curved surface plating thickness measurement calibration method includes processing calibration device and calibration sheet, the calibration device has circular arc segment;At least one application package is created on thickness gauge;The probe of thickness gauge is measured at multiple points on a circular arc segment of a certain diameter, and the measurement value of each point is zeroed, and the establishment of the application is completed;Open the established application, place the calibration sheet at a certain position on the surface of the circular arc segment, then contact the probe with the calibration sheet to obtain a reading, if the reading is not within the set measurement thickness range, adjust the application;Place the calibration sheet at the next position on the surface of the circular arc segment, repeat the above steps to obtain a second reading;Repeat the above steps to obtain multiple point readings;Complete the calibration of the application;Call the calibrated application to measure the curved surface on the part.The application can improve the accuracy of curved surface plating thickness measurement.
Owner:LANDING GEAR ADVANCED MFG
Calibration method of user coordinate system, robot and storage medium
PendingCN119610083AReduce calibration costsAvoid errorsProgramme-controlled manipulatorRobot handLight spot
The invention provides a user coordinate system calibration method, a robot and a storage medium, the method is applied to the robot, and the method comprises the steps that an initial reference point is determined according to the initial position of a laser displacement sensor, and the initial position represents any position when a light spot of laser emitted by the laser displacement sensor falls in a center circle; determining a target circle on a target plane parallel to the calibration plate according to the initial reference point and a preset radius; the manipulator is controlled to move along the circumference of the target circle, multiple target height values are determined from multiple candidate height values collected by the laser displacement sensor, and the multiple target height values represent the distances between the laser displacement sensor and the bottoms of the multiple grooves; taking the positions where the laser displacement sensor is located when the plurality of target height values are collected as a plurality of calibration points; and determining an original point and a coordinate axis of the user coordinate system according to the plurality of calibration points. According to the method, the calibration efficiency of the user coordinate system used in the product calibration process can be improved.
Owner:FU TAI HUA IND SHENZHEN +4
Internal supporting type shape correcting assembly suitable for annular structural part
ActiveCN222642902Uquick calibrationAccurate CalibrationMetal-working apparatusStructural engineeringMechanical engineering
Owner:LUOYANG HANGHUI NEW MATERIAL CO LTD
Three-dimensional camera posture online calibration device and method for industrial robots
ActiveCN112356073BHigh precisionSimplify the calibration processProgramme-controlled manipulatorImage enhancement
The present invention discloses an online calibration device and method for the position and posture of a three-dimensional camera for an industrial robot, including an industrial robot driving a calibration stereo target to move to a calibration point in a certain posture; the three-dimensional camera can measure the three-dimensional point cloud data in space, and output the calibration stereo target and the local three-dimensional point cloud data of the nearby structural parts to the calibration control module of the industrial control computer, the calibration control module processes and solves to obtain the three-dimensional coordinates of the visible calibration feature vertices in the three-dimensional camera coordinate system; identifies and retrieves to obtain the three-dimensional coordinates of each visible calibration feature vertex in the industrial robot coordinate system; solves to obtain the coordinate conversion matrix between the three-dimensional camera and the industrial robot. The present invention does not require additional calibration tooling accessories, has the characteristics of high efficiency and high precision, and can also verify or calibrate the coordinate conversion matrix of the three-dimensional camera and the industrial robot online after the manipulator is installed and during use.
Owner:XIAN ZHONGKE PHOTOELECTRIC PRECISION ENG CO LTD
X-ray optical system angular resolution calibration system and method
PendingCN119413403Aquick calibrationAccurate CalibrationTesting optical propertiesLight spotImage resolution
The invention discloses an angular resolution calibration system for an X-ray optical system. The system comprises a multi-degree-of-freedom turntable, an X-ray imaging detector, a diaphragm, a filter disc, a monochromator, an X-ray light source, a test cavity and a computer. The invention also discloses an X-ray optical system angular resolution calibration method, which comprises the following steps of: adjusting the position and the posture of the detected optical system through the multi-degree-of-freedom turntable, so that the detected optical system is aligned with the X-ray light source; the test cavity is vacuumized; the position of the detected optical system is adjusted, so that X-rays emitted by the X-ray light source are respectively incident to each calibration position of the clear aperture of the optical system, the X-ray imaging detector images light spots focused at each calibration position, and the light spots are stored in the computer; and the computer carries out splicing processing on all the light spots, the angular resolution is obtained according to the spliced light spots, and calibration of the angular resolution is completed. The method has the advantages of being wide in application range, high in accuracy, easy to implement and the like, and difficulty and investment can be effectively reduced.
Owner:BEIJING INST OF CONTROL ENG
TOC analyzer with anti-pollution calibration structure
PendingCN119413978Aavoid douchingReduce labor intensityWithdrawing sample devicesPreparing sample for investigationDust controlSuspended matter
The invention discloses a TOC analyzer with an anti-pollution calibration structure, and belongs to the technical field of TOC analyzers, the TOC analyzer comprises a shell, a sealing cover, a follow-up sealing structure, a dust removal structure and a calibration mechanism, the front end of the shell is in shaft connection with the sealing cover, the sealing cover is provided with a visual window, the inner top surface of the shell is connected with a mounting frame, and the inner top surface of the mounting frame is connected with the follow-up sealing structure. A servo motor and a metering pump are installed in the installation frame, the end of the metering pump penetrates through the upper surface of the shell in a sealed mode, the shaft end of the servo motor is connected with an installation disc, and transparent liquid containing pipes are distributed on the installation disc at equal angles. According to the invention, dust and suspended matters in the shell can be removed before calibration, so that the dust and suspended matters can be prevented from influencing the calibration, the accuracy of subsequent detection is ensured, in addition, a worker can be prevented from frequently and manually taking, placing and washing the transparent liquid containing pipe, the rapid calibration is facilitated, and the calibration efficiency is improved. And the labor intensity of workers is reduced.
Owner:SHANGHAI METASH INSTR
A type correcting device for an opening member sill beam
The utility model belongs to the technical field of automobile parts processing discloses a kind of type checking device suitable for opening piece door sill beam, including punch press, datum seat, upper fixed seat, lower fixed mechanism and type checking head, the type checking head is installed in the action end of the punch press by upper fixed seat, the datum seat is installed on the workbench of punch press, the lower fixed mechanism is installed on the datum seat, the lower fixed mechanism includes clamping block, two fixed blocks and adjusting mechanism, the fixed block is set in the left and right sides of the top of the datum seat and is fixedly connected, the clamping block is equipped with two, the clamping block is connected with the fixed block respectively, the clamping block is connected with the fixed block by adjusting mechanism. It can realize to cut off department type checking, avoid the disadvantages of artificial type checking.
Owner:LINGYUN INDAL CORP
Fast and self-adaptive oscillator frequency calibration method, circuit and oscillator system
ActiveCN119582840Areduce power consumptionquick calibrationPulse automatic controlSoftware engineeringHemt circuits
The invention provides a quick and self-adaptive oscillator frequency calibration method and circuit, an oscillator system, equipment and a medium, and the method comprises the steps: controlling an oscillator to complete initialization frequency calibration, then entering an open-loop state, and controlling the oscillator to enter a closed-loop state from the open-loop state after a second set time, obtaining the actual frequency output by the oscillator, and comparing the actual frequency output by the oscillator with the set frequency to obtain an adjustment word bit; and according to the adjustment word bit and the reference clock signal, sequentially adjusting the control words from the adjustment word bit to the low bit so as to carry out frequency recalibration on the oscillator, so that the oscillator outputs the set frequency, and the oscillator is controlled to enter an open-loop state from a closed-loop state. Therefore, the frequency of the oscillator can be quickly calibrated under the condition that the output frequency of the oscillator fluctuates slightly, and the power consumption of the loop is reduced.
Owner:FUDAN UNIVERSITY
Array optical switch and manufacturing and calibration method and calibration device thereof
ActiveCN119395822Aquick calibrationquick testCoupling light guidesTesting optical propertiesTarget arrayOptical power meter
The invention relates to the technical field of optical communication, in particular to an array optical switch and a manufacturing and calibration method and device thereof. The method comprises the following steps: obtaining a second optical switch device corresponding to a first optical switch device, sequentially selecting a first channel from the first optical switch device, randomly selecting a second channel from the corresponding second optical switch device, and welding the first channel and the second channel to obtain a target array optical switch; connecting a first test channel of the first test optical switch with a first single channel of the first optical switch device, and connecting a second test channel of the second test optical switch with a second single channel of the second optical switch device; a first test single channel of the first test optical switch is connected with a light source, and a second test single channel of the second test optical switch is connected with an optical power meter; starting the light source, adjusting the conduction channels of the first and second test optical switches and the target array optical switch, and completing the calibration of the target array optical switch according to the measurement result of the optical power meter. The production efficiency can be improved, and the production cost can be reduced.
Owner:O NET COMM (SHENZHEN) LTD
Composite tower crane foundation and construction method thereof
PendingCN119507460Aquick calibrationGuarantee the quality of the projectFoundation testingAlarmsArchitectural engineeringSlide plate
The invention discloses a combined type tower crane foundation and a construction method thereof, and relates to the technical field of building construction, the combined type tower crane foundation comprises a horizontal plate, a tower crane main body, a supporting plate and a pouring base, the center of the bottom of the horizontal plate is fixedly connected with a supporting column, the bottom of the supporting column is fixedly connected with a universal ball, and the outer wall of the universal ball is in spherical connection with the inner wall of a seat cylinder. When the tower crane foundation deviates, the abutting plate can be extruded through the vertical gravity of the plumb bob, the sliding plate extrudes the pressure sensor through the elastic force of the first spring, and therefore when a certain threshold value is reached, the pressure sensor can be used for giving an alarm, and tower crane personnel are reminded to stop construction in time; and corresponding signals are transmitted to control the electric push rod to ascend and descend, the levelness of the horizontal plate is adjusted through the lifting rod till the pressure threshold value of the pressure sensor returns to the normal level, then the perpendicularity of the tower crane can be rapidly calibrated, the engineering quality during construction is guaranteed, and the tower crane is more reliable and safer.
Owner:SHAOXING PANGYUAN MASCH TECH CO LTD
Method, device, equipment and storage medium for color difference detection and calibration between print heads
The present invention belongs to the field of inkjet printing technology, solves the problem of low efficiency of color difference detection between nozzles and poor calibration effect in the prior art, and provides a method, device, equipment and storage medium for color difference detection and calibration between nozzles. The method comprises: printing a nozzle color difference detection chart; when the printed nozzle color difference detection chart does not meet the first preset condition, selecting a nozzle as a reference nozzle from all the nozzles according to a preset selection rule; obtaining and printing a nozzle color calibration chart, and determining the ink volume adjustment parameters of nozzles other than the reference nozzle according to the printed nozzle color calibration chart; and adjusting the nozzle parameters of nozzles other than the reference nozzle according to the ink volume adjustment parameters. The present invention can quickly and efficiently detect and calibrate the color difference between nozzles.
Owner:SHENZHEN HOSONSOFT CO LTD
A rod positioning and bonding fixture for processing hemispherical resonator
ActiveCN224763499UStable processing benchmarkGlue accurate
This utility model relates to a rod positioning and bonding fixture for processing hemispherical resonators, including a fixture base. The fixture base is equipped with a side frame, a rod support assembly, and an automatic glue applicator. The side frame has a clamping member for holding a reference rod. The rod support assembly supports the molten quartz rod and has a drive mechanism for aligning the end of the molten quartz rod with the end of the reference rod. The automatic glue applicator is located between the clamping member and the rod support assembly and is used to apply glue to the end of the reference rod. In this utility model, the clamping member on the side frame fixes the reference rod to provide a stable processing reference; the rod support assembly supports the molten quartz rod and achieves precise alignment with the reference rod through the drive mechanism, ensuring coaxiality and contact accuracy between the two; the automatic glue applicator, located between the two, can accurately apply glue to the end of the reference rod, ensuring reliable and consistent bonding.
Owner:BEIJING INST OF AEROSPACE CONTROL DEVICES +1
Subway shield segment horizontal assembly inspection base
ActiveCN222579138Uquick levelingSimple structureMechanical measuring arrangementsStructural engineeringMechanical engineering
The utility model discloses a subway shield segment horizontal assembly inspection base which comprises an annular supporting table formed by splicing four sets of arc-shaped single assemblies, each single assembly comprises an arc-shaped plane steel plate and arc-shaped steel plates welded to the two sides, and I-shaped steel is arranged between the arc-shaped plane steel plates and the arc-shaped steel plates. The utility model relates to the technical field of segment splicing detection, adopts a mode of splicing four groups of arc-shaped single components to form an annular support table, and is simple in structure and convenient to operate; each single component is formed by welding the arc-shaped plane steel plate, the arc-shaped steel plates on the two sides and the I-shaped steel, material selection is convenient, and cost is low; the leveling assembly is arranged at the lower end of the single assembly, rapid leveling of the base can be achieved, and the working efficiency of the three-ring test is improved; the upper end face of the arc-shaped plane steel plate is provided with an inner diameter positioning line used for positioning the duct pieces, so that the duct pieces can be quickly positioned and calibrated, and the duct piece splicing operation efficiency is improved.
Owner:YATAI GROUP SHENYANG MODERN CONSTRUCTION INDUSTRY CO LTD
Playground linear runway calibration method, device and equipment based on visual technology and medium
ActiveCN119540353AImprove calibration efficiencyImprove calibration accuracyImage enhancementImage analysisVisual technologyComputer graphics (images)
The invention provides a playground linear runway calibration method, device, equipment and medium based on a visual technology, and the method comprises the steps: 1, arranging a marker and a camera on a runway, and enabling the camera to shoot the video of the whole runway in real time, and capturing a video stream; 2, preprocessing the video and detecting the position of a marker; 3, detecting and positioning the marker in the video image in real time through the target detection algorithm model by adopting the trained target detection algorithm model for identifying the marker to obtain the coordinate of the marker; 4, calculating a runway line coordinate sequence according to the detected positions of the markers; according to the invention, the problems of low efficiency, low precision and high cost in the traditional manual calibration process are solved.
Owner:恒鸿达(福建)体育科技有限公司
A robot tool coordinate system calibration method based on a laser tracker
A kind of robot tool coordinate system calibration method based on laser tracker, first, the axis of robot end flange is collected to feature point;Second, the feature point needed for establishing tool coordinate system is collected;Third, the feature point of another axis of flange is collected;Finally, the robot end tool coordinate system is established by fitting line surface feature.This method can realize the quick and accurate calibration of robot end tool, improve the calibration efficiency of tool coordinate system, and the feature point data collection is one-way in the calibration process, which avoids the error introduced by robot repeated positioning.The method is simple to operate, and the calibration effect is good.
Owner:BEIJING INST OF TECH
A mobile remote in-situ temperature calibration device and method based on 5G
ActiveCN118817118Bquick calibrationImprove calibration efficiencyParticular environment based servicesThermometer testing/calibrationRobot handThe Internet
The present invention discloses a mobile remote in-situ temperature calibration device and method based on 5G. The device includes a drawbar box, in which a constant temperature module, an interface module, a control module, an industrial camera and a storage box are arranged. This mobile remote in-situ temperature calibration device based on 5G is integrated into the drawbar box, which is convenient for carrying and transferring; each group of constant temperature boxes starts preheating or cooling at the same time, and the temperature sensor to be calibrated is rotated in the constant temperature boxes at different temperature points by grasping the temperature sensor to be calibrated by a manipulator, so as to realize the rapid calibration of the temperature sensor; the interface types of the temperature sensor to be calibrated are expanded to meet the calibration requirements of different temperature sensors; the calibration data is uploaded and stored through the Internet, and the remote collaborative operation of the calibration device and the supervision of the calibration process are realized in combination with the industrial camera.
Owner:CHINA JILIANG UNIV
Automatic feeding and conveying device for woven cloth
ActiveCN224226305Ureduce frictionSmooth unwinding processMechanical cleaningPressure cleaningGear driveGear wheel
The utility model discloses an automatic woven cloth feeding and conveying device which comprises a bottom plate, a supporting rod, a second support, a fixing frame, a first driving motor, a gear transmission mechanism and a guiding mechanism, the guiding mechanism is composed of a second driving motor, a positive and negative tooth lead screw, a guiding roller and an airflow auxiliary assembly, and the first driving motor drives a gear to transmit. In the guiding mechanism, a second driving motor drives a positive and negative tooth lead screw to adjust the distance between guiding rollers, the transverse position of the cloth can be manually calibrated conveniently, deviation is prevented, compressed air generated by an air pump is sprayed out of a flat nozzle at a high speed through a pipeline, friction force between layers of the cloth is reduced, and the cloth conveying efficiency is improved. According to the device, through cooperative work of mechanical transmission and an airflow auxiliary system, the feeding efficiency and quality of the woven cloth are remarkably improved, the labor cost is reduced, and the stability and reliability of the conveying process are guaranteed.
Owner:CHANGZHOU MINGYI PACKAGING MATERIAL CO LTD