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45results about How to "Effective correction" patented technology

Channel time-frequency joint extrapolation method based on multi-layer perceptron hybrid architecture

PendingCN122001504Aeffective correctionquick fitTransmission monitoringChannel dataDelay spread
The invention discloses a channel time-frequency joint extrapolation method based on a multi-layer perceptron hybrid architecture. Aiming at the problems of high acquisition cost of actual communication scene channel data, high time consumption of model online training and difficulty in covering the actual communication scene by simulation data, the method comprises the following steps of: making a pre-training model by using a large-scale simulation channel data set to extract channel change characteristics; and carrying out online rapid adaptation according to the trace data of the actual measurement scene. Aiming at the characteristics that the time delay spread of an indoor wireless channel is relatively small and the number of antennas is relatively small, a multi-layer perceptron hybrid architecture is applied to the time-frequency domain extrapolation of a single-carrier broadband channel. The model can quickly adapt to an actual communication scene through fine tuning of a small amount of data. The method has the advantages of being high in adaptation speed, small in data dependence, high in scene migration capacity, high in calculation parallelism degree and the like, and is suitable for edge deployment and rapid adaptation to actual scenes.
Owner:SOUTHEAST UNIV

Blood oxygen signal denoising method and system based on adaptive filtering

PendingCN121845570AAvoid easy misjudgment problemssolve misjudgmentSensorsBlood characterising devicesAdaptive filterMedicine
The invention discloses a blood oxygen signal denoising method and system based on adaptive filtering, and the method comprises the steps: synchronously collecting an original blood oxygen signal and a three-axis acceleration signal through a sensor module, and obtaining an original blood oxygen signal sequence and a three-axis acceleration signal sequence which are aligned in time; the three-axis acceleration signals are fused into one-dimensional motion artifact reference noise signals used for representing the limb motion state of the user; the method comprises the following steps: dynamically calculating an adaptive step length factor sequence through a nonlinear mapping function based on multilevel energy analysis of a motion artifact reference noise signal; constructing a time-varying step size adaptive filter, and calculating noise components in the original blood oxygen signal by using the motion artifact reference noise signal and an adaptive step size factor; and subtracting the calculation noise signal from the original blood oxygen signal, and reconstructing to obtain a pure blood oxygen signal without motion artifacts. According to the method, accurate calculation and efficient suppression of motion artifacts can be achieved, and the purification quality and processing efficiency of blood oxygen signals are remarkably improved.
Owner:HUNAN VENTMED MEDICAL TECH CO LTD

Multi-camera coordinated fabric weft distortion correction apparatus

The utility model relates to textile equipment technical field especially, more camera coordination's fabric weft yarn deformation correction equipment. Its technical scheme includes support foot, the top fixedly connected with crosspiece of multiple support foot, the outer wall of two crosspieces is provided with correction mechanism, the correction mechanism includes the multiple fixed knot of fixed in the crosspiece outer wall, the top fixedly connected with top support column of multiple fixed knot, multiple top support column is provided with transmission, the inner wall of crosspiece is provided with heating conduction mechanism, the transmission includes the outer wall one side fixedly connected with drive motor of multiple top support column fixed in the both sides. The utility model discloses more camera coordination's fabric weft yarn deformation correction equipment, it can realize the efficient correction to different types and degree weft yarn deformation to the advantage that avoids the performance decline caused by the uneven heating of fabric.
Owner:CHANGZHOU HONGREN INTELLIGENT TECH CO LTD

Wellhead centering and aligning device and method for oil drilling and workover

PendingCN121952474Aquick correctionsafe correctionDrilling rodsDrilling casingsStructural engineeringTraveling block
The invention belongs to the field of oil and gas exploration and development, and relates to an oil drilling and workover well mouth centering and aligning device and method.The device comprises an upper flange and a lower flange, the upper flange is connected with a rotary control head, the lower flange is connected with an annular blowout preventer, a sealing device is arranged between the upper flange and the lower flange, and the upper flange and the lower flange are each sleeved with a pressing plate; the pressing plate on the upper flange and the pressing plate on the lower flange are detachably connected through a fastening device, and adjusting bolts used for adjusting the upper flange to move in the horizontal direction are arranged on the pressing plate on the upper flange and the pressing plate on the lower flange. A flange position adjusting device is designed, horizontal multi-direction free adjustment can be simply and rapidly achieved, a wellhead can be rapidly, safely and effectively corrected, and vertical centering alignment of the center of wellhead devices such as a rotary control head of the device and a crown block and a traveling block is achieved.
Owner:PETROCHINA CO LTD

An unmanned aerial vehicle image radiation consistency correction method under varying illumination conditions

The present application relates to a kind of unmanned aerial vehicle image radiation consistency correction method under varying illumination conditions, comprising: obtaining the orthographic image of target farmland area;Orthographic image of target farmland area is positioned and corrected in space, and the spatial position of each farmland plot or test plot in orthographic image in target farmland area is obtained;According to the spatial position of each farmland plot or test plot in orthographic image, orthographic image is cut, and the radiation information affected by illumination change in cut image is corrected in radiation consistency;Based on the image data after radiation consistency correction, crop growth monitoring, farmland condition evaluation, variety comparison analysis or yield prediction are carried out.The present application can be widely applied to the field of remote sensing image processing and spectral correction.
Owner:SANYA INSTITUTE OF NANJING AGRICULTURAL UNIVERSITY +1

Device for detecting deformation of carbon paper of hydrogen fuel cell

The utility model discloses a hydrogen fuel cell carbon paper deformation detection device which comprises a universal testing machine, an experiment pressing block, an experiment cushion block, a polar plate carbon paper stacking structure, a video extensometer, a concentrated light source and a microscope, the polar plate carbon paper stacking structure is arranged between the experiment pressing block and the experiment cushion block, and the universal experiment machine is configured to provide continuously changing packaging force and uniformly transmit the packaging force to the polar plate carbon paper stacking structure through the experiment pressing block and the experiment cushion block, namely, the mechanical environment of carbon paper in a galvanic pile is simulated; the concentrated light source is configured to provide brightness, and the video extensometer and the microscope are configured to observe the form change of the carbon paper in the polar plate carbon paper stacking structure after continuous stress. The device simulates the in-pile mechanical environment through the universal testing machine, and directly observes the real form change of the carbon paper in the flow channel through the optical detection technology, thereby being beneficial to improving the cognition on the internal structure of the electric pile and guiding the design of the electric pile.
Owner:DONGFANG ELECTRIC (CHENGDU) HYDROGEN FUEL CELL TECH CO LTD

Polishing device special for deep hole flow channel of pump body

InactiveCN121848232AContinuous active correction powerStable active correction forceGrinding machine componentsRevolution surface grinding machinesPolishingRadial displacement
The invention provides a polishing device special for a deep hole runner of a pump body, and relates to the technical field of polishing equipment, the polishing device comprises a polishing part and a flexible shaft, the polishing part comprises a center disc and a plurality of supporting rods, and supporting rollers and polishing rollers are arranged on the two sides of the ends of the supporting rods correspondingly; when the supporting roller and the polishing roller are located in the pump body flow channel, the supporting roller makes contact with the polished part of the pump body flow channel, the area where the supporting roller is located serves as the polishing standard, the polishing roller makes contact with the unpolished part of the pump body flow channel, and when the polishing roller makes contact with local protrusions, the trend of radial displacement is generated. The first included angle is equal to the second included angle, and the supporting roller enables the grinding roller to keep the swing direction synchronous with the grinding reference so as to forcibly restrain radial displacement of the grinding roller, so that the grinding roller can apply continuous and stable active correction force to local protrusions, and the capacity of the grinding roller for effectively correcting the shape precision of the pump body flow channel is guaranteed; therefore, the grinding rigidity is ensured while the method adapts to complex runners.
Owner:DALIAN JIAMING PUMP CO LTD

Method for simultaneously determining concentrations of various antiepileptic drugs in plasma

PendingCN121933664AAccurate detectionMeet regulatory requirements for quantitative analysisComponent separationAntiepileptic AgentsMedication monitoring
The invention relates to the technical field of treatment drug monitoring, in particular to a method for simultaneously determining the concentration of multiple antiepileptic drugs in plasma. Comprising the following steps: S1, preparing a standard working solution; s2, preparing an internal standard solution; s3, mixing the standard working solution with blank plasma, adding an internal standard solution, centrifuging, and detecting to obtain a chromatogram of a standard solution; s4, based on the chromatogram, taking the ratio of the peak area of the anti-epileptic drug to the peak area of the corresponding internal standard substance as a vertical coordinate Y, taking the ratio of the concentration of the anti-epileptic drug to the concentration of the corresponding internal standard substance as a horizontal coordinate X, and fitting to obtain a standard curve equation; s5, preparing a plurality of groups of quality control working solutions, and verifying the standard curve equation obtained in the step S4; and S6, uniformly mixing the blood to be detected with the internal standard solution, centrifuging, detecting the supernate, and calculating the concentration of the antiepileptic drug in the plasma. The method can realize simultaneous, accurate and quantitative detection of multiple antiepileptic drugs in blood.
Owner:THE FIRST AFFILIATED HOSPITAL OF SOOCHOW UNIV

An unsupervised exposure correction method

PendingCN122597232Arestore brightnessImprove reliability
The application discloses a kind of unsupervised exposure correction methods, method includes: constructing semantic prompt guide's exposure perception module, the exposure level of image is perceived at visual semantic level;Exposure parameter modulation is constructed pseudo-supervision generation module, according to image exposure level adaptive exposure modulation is carried out, and synthesis is used to guide model training pseudo-supervision image;Construct color degradation compensation exposure correction module, by joint execution luminance correction and color compensation, the luminance distortion in abnormal exposure image and color degradation are recovered;Unsupervised exposure correction network is trained using the network optimization mechanism of multiple loss functions;Based on the unsupervised exposure correction network after training, input image is handled, and image luminance level and color fidelity are effectively improved.The application generates pseudo-supervision image according to image exposure level adaptive to guide model training, and compensates the color information of image while luminance correction, to realize the collaborative recovery of luminance and color.
Owner:TIANJIN UNIV

Cast-in-situ bored pile latticed column positioner

The utility model relates to the technical field of cast-in-place pile construction, in particular to a cast-in-place pile latticed column positioner which comprises a latticed column and a positioning table, adjusting supporting feet are arranged on the side edge of the positioning table, a strip-type gradienter and a lifting lug are arranged on the positioning table, and a rotary table is rotationally arranged on the upper side of the positioning table. A plurality of groups of oil cylinders are arranged on the inner side of the round hole of the rotary table and correspond to the latticed column, an anti-skid pad is arranged at one end of each oil cylinder, the anti-skid pads abut against the side wall of the latticed column, a brake is arranged on the upper side of the positioning table, and the brake comprises a guide rod and a magnetic sheet. The positioner comprises the positioning table and the rotary table, adjusting supporting legs are arranged at the bottom of the positioning table, the positioning table is corrected through the strip-type gradienter, the positioning table is prevented from inclining, the latticed column is clamped through the multiple sets of oil cylinders, telescopic control is carried out, and deviation and angle deviation of the latticed column can be rapidly and effectively corrected in cooperation with the rotary table.
Owner:CHINA RAILWAY SHISIJU GROUP CORP +1

A student homework correction method based on submission history information

The application discloses a student homework correction method based on submission history information, which comprises the following steps: firstly, processing the submission history information, extracting the latest and initial code changes of the student, extracting the submission message and the code changes of the reference program each time, segmenting the code changes extracted from the student and the reference program, and establishing code change segments; then, finding the code change segments that may be matched between the student program and the reference program, calculating the similarity after finding the code change segments, and establishing a similarity set; then, finding the best matching code segment by using the maximum weight algorithm of the bipartite graph; then, performing text similarity calculation on the submission message corresponding to the matched code segment; and finally, integrating the similarity of the code segment and the corresponding message according to the proportion.
Owner:NANJING UNIV OF POSTS & TELECOMM

A food processor with a stable operation

The utility model belongs to kitchen appliance technical field discloses a kind of stable operation's food processor, including comminuting device and motor, motor includes stator, rotor, the rotating shaft protruding from rotor, the upper end of rotating shaft is transmission cooperation with comminuting device, motor further includes the balance weight being arranged above rotor and the fan being arranged below rotor, the density of fan is less than the density of balance weight, fan includes integrally formed first balancing portion, second balancing portion and fan blade, first balancing portion is close to rotor and with balance weight opposite arrangement, second balancing portion extends downward from the lower end of first balancing portion and projects outward along radial direction, fan blade is arranged in second balancing portion and is arranged along circumferential direction interval. The initial unbalance of rotor is reduced on the basis of reducing cost, reducing assembly error, the balanced operation of rotor is realized, motor vibration is improved, and rotation noise is reduced.
Owner:HONGYANG HOME APPLIANCES

Double-line-scan digital camera optical system based on multiplexing of primary mirror and secondary mirror

ActiveCN121956317AMeet differentiated needsImprove applicabilityOptical elementsImaging qualityLight beam
The invention relates to the field of space remote sensing measurement, in particular to a double-line-scan digital camera optical system based on multiplexing of a primary mirror and a secondary mirror, which comprises the primary mirror, the secondary mirror, a first third mirror, a second third mirror, a rear line-of-sight array focal plane and a front line-of-sight array focal plane, for a rear-view array imaging light path, a light beam is reflected by a first reflection area of a primary mirror, a secondary mirror, a second reflection area of the primary mirror and a first third mirror in sequence and then enters a rear-view array focal plane; for a front-sight array imaging light path, a light beam is reflected by the second reflection area of the primary mirror, the secondary mirror, the first reflection area of the primary mirror and the second third mirror in sequence and then enters a front-sight array focal plane. Through multiplexing of the primary mirror and the secondary mirror, two independent three mirrors are adopted to respectively adjust observation angles corresponding to a double-linear-array imaging light path, the system can flexibly adapt to asymmetric observation angles, and is excellent in image quality, compact in system structure and light in weight under the condition of a large relative aperture. And the method has important engineering significance for promoting the miniaturization and lightweight development of the double-linear-array surveying and mapping camera.
Owner:CHANGCHUN CHANGGUANG ZHIYUAN TECHNOLOGY CO LTD

Pipelined product image rectification method, device, equipment and storage medium

ActiveCN118115402Beffective correctionRealize automatic identification
The application discloses a kind of pipeline product image correction method, device, equipment and storage medium, belong to the field of automated production technology.The application obtains the real-time image of the loading tray on the pipeline, and the real-time image of the loading tray is split into correction reference image and image to be corrected;The correction reference image is split into multiple correction reference sub-images by equal width;Obtain the line feature parameter of each correction reference sub-image, and obtain the correction parameter sequence according to the line feature parameter;According to the correction parameter sequence, the image to be corrected is corrected, and the corrected product image is obtained.The above-mentioned method can effectively correct the product image by linear camera shooting and the method based on correction reference image, eliminate the distortion caused by the speed of the pipeline, so as to obtain accurate image data, realize the automatic identification, positioning and quality detection of the product on the pipeline, and improve the production efficiency and production observation precision.
Owner:WUHAN HAIWEI TECH CO LTD

A method for adjusting diamond wire cable-stayed in real time through image recognition

ActiveCN116653143BCorrection speed is fastHigh accuracy of deviation correctionGrinding feed controlWorking accessoriesMechanical engineeringSilicon
The application discloses a method for real-time adjustment of diamond wire cable-stayed by image recognition, comprising: installing an industrial camera on a servo adjustment mechanism fixing piece on the outside of the diamond wire, above the wire roller and below the synchronous guide wheel, and adjusting to obtain a final shooting area range; installing a light source on the back plate of the take-up chamber on the inside of the diamond wire, above the wire roller and below the synchronous guide wheel; starting the slicing machine to cut the silicon rod, real-time monitoring the diamond wire to obtain a real-time diamond wire monitoring picture, and determining a left and right allowable deviation angle; the diamond wire starts to appear cable-stayed, and gradually deviates from the left or right allowable deviation angle; when it is judged that the diamond wire deviates from the left allowable deviation angle, a left deviation pulse signal is continuously output to correct the diamond wire; when it is judged that the diamond wire deviates from the right allowable deviation angle, a right deviation pulse signal is continuously output to correct the diamond wire. The application achieves the purpose of effectively correcting the diamond wire cable-stayed.
Owner:JINWAN GAOJING SOLAR ENERGY TECH CO LTD +1

Three-way catalyst reducer shaping tool composite mold set

ActiveCN122142181AAchieve assembly accuracyAvoid size lossShaping toolsStructural engineeringMechanical engineering
The application discloses a three-way catalyst reducer shaping tool composite die set, which comprises a fixed die seat, the upper end face of which is provided with a lower die seat in parallel, two symmetrically arranged side die frames, which are symmetrically fixed on the fixed die seat and located on the two sides of the lower die seat, an upper stamping seat arranged above the fixed die seat, a first forming die set and a second forming die set, each of which is composed of two model plates arranged in an up-down mode, a die closing mechanism arranged below the lower die seat, and a plurality of reducer units, each of which is arranged at two reducer shaping ports of the first forming die set and the second forming die set. The double die set design of the application combines pre-reducing with accurate reducing, step-by-step forming is realized, size out-of-control caused by single large deformation is avoided, and a micro dynamic spinning shaping force is applied to the inside of the shell, so that the rebound is significantly reduced and the size stability after reducing is ensured.
Owner:盐城斯凯奇自动化设备有限公司

A glass aspheric wide-spectrum imaging lens

ActiveCN115685495Beffective correctionEnable confocal imagingOphthalmologyProtective glasses
The application discloses a glass aspheric wide-spectrum imaging lens to solve the imaging requirement of a wide waveband. The lens comprises four glass aspheric lenses and a protective glass coaxially arranged in sequence from an object side to an image side, wherein the first lens is a positive lens; the second lens is a negative lens; the third lens is a positive lens; and the fourth lens is a negative lens. The total length of the lens is 5.98 mm, the F# is 3.11, and the lens satisfies the requirement of the axial aberration being less than 50 microns in the confocal imaging in the waveband range of 340 nm-1550 nm. The lens system effectively corrects various aberrations in the waveband range of 340 nm-1550 nm by using the mode of matching the high-Abbe-number positive lens with the low-Abbe-number negative lens.
Owner:ZHEJIANG UNIV

A remote sensing image target detection method based on improved YOLOv9s

The application relates to the technical field of computer vision and artificial intelligence, and provides a remote sensing image target detection method based on an improved YOLOv9s, which comprises the following steps: acquiring a remote sensing image and performing a pretreatment operation; introducing a kernel selection feature fusion (KSFF) module into a neck network of a YOLOv9s model, and replacing at least one Concat structure in the original model; adding a cross-space multi-scale attention (CSMA) module in the neck network; replacing at least one SPPELAN structure in the original model with a parallel pooling feature modulation (PPFM) module in the neck network; and training, testing and evaluating the improved YOLOv9s network. Through the comprehensive application of network structure improvement, data pretreatment optimization, a semi-supervised learning strategy and an advanced training method, the improved YOLOv9s model has higher detection precision in a remote sensing image target detection task.
Owner:YANCHENG INST OF TECH

A method for synthesizing coronary artery CCTA images and an electronic device

PendingCN122510089AMeet clinical needs for auxiliary diagnosisquality improvement
The present application relates to a kind of synthesis method and electronic equipment of coronary artery CCTA image, comprising: obtaining the image of paired NCCT and CCTA, after pretreatment, obtain high consistency image training pair;LDM model suitable for adapting coronary artery image synthesis is constructed, the LDM model includes frozen variational autoencoder, the denoising U-Net of trainable based on cross attention mechanism, and decoder, the denoising U-Net integrates ResNet2D module, Transformer2D module and multi-scale cross attention layer;After pre-processing, the NCCT image to be processed is input into the LDM model trained, and the latent representation of CCTA image is generated by the reverse diffusion denoising process in latent space, and finally the high-resolution Syn-CCTA image is output by decoder.Compared with prior art, the present application has the advantages of no contrast agent to realize coronary artery CCTA image with auxiliary diagnostic value.
Owner:RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE

Ledger data assisted distributed high-speed railway mileage correction method

ActiveCN117390006Bprecise positioningeffective correction
The application discloses a distributed high-speed railway mileage correction method assisted by account data, and comprises the following processes: reading detection data and account data of high-speed railway track geometry, finding matched detection curves of the account curves corresponding to each account data through positioning and matching, and then performing translation correction; the non-curve segments are corrected through an equal-division interpolation method, and the complete corrected data are obtained through alternate splicing. The application can assist railway technical personnel in performing the mileage correction of track geometry data, and solves the problem of slow mileage correction.
Owner:XI AN JIAOTONG UNIV

Intelligent logistics vehicle control method and control device

The invention discloses an intelligent logistics vehicle control method and device, and the method comprises the following steps: controlling an intelligent logistics vehicle to execute a task based on pre-shared map data; when the task is executed, information about a map matching rate determined based on the map data is received from the intelligent logistics vehicle; and based on the received information about the map matching rate, sending position initialization information, so that the intelligent logistics vehicle executes relocation.
Owner:HYUNDAI MOTOR CO LTD +1

Large-view-field multi-wavelength achromatic double-piece cascade super-structure lens device and design method and application thereof

PendingCN121995556AAchieve multi-wavelength achromatic effectseffective correctionLensImaging qualityLight beam
The invention belongs to the technical field of micro-nano optics, and particularly relates to a large-view-field multi-wavelength achromatic double-piece cascade super-structure lens device and a design method and application thereof. The device comprises two cascaded super-structure lenses which are sequentially arranged from an object plane to an image plane, each cascaded super-structure lens is composed of achromatic super-structure atoms which are periodically arranged, incident light can be cooperatively regulated and controlled, and aberration correction is achieved while focusing is conducted. By optimizing the phase distribution of the two cascaded super-structure lenses and the distance between the two cascaded super-structure lenses and selecting adaptive achromatic super-structure atoms, the device can be adaptive to multiple wavelengths or specific single wavelengths. The design method of the device comprises the following steps: determining device parameters according to requirements, optimizing the phase distribution of the two cascaded super-structure lenses and the distance between the two cascaded super-structure lenses, and finally selecting adaptive achromatic super-structure atoms so as to complete the design. The device is suitable for multi-wavelength or specific single-wavelength, has the effects of large view field and high image quality, and can be applied to the fields of imaging modules, near-to-eye display, laser beam shaping, laser radar and the like.
Owner:HUAZHONG UNIV OF SCI & TECH

An unmanned ship combined navigation method based on IMU / DVL / magnetometer / lidar

The present application relates to a kind of unmanned ship combination navigation method based on IMU / DVL / magnetometer / LiDAR, for the hardware condition of MEMS IMU, Doppler velocity meter and magnetometer and other sensors.Point cloud distortion correction refers to the point cloud in the same data frame in different coordinate systems is transferred to the coordinate system of the starting point cloud in the frame.MEMS IMU, DVL, magnetometer all have high data update frequency, before point cloud data update, the motion of carrier is predicted and estimated.MEMS IMU outputs angular velocity and acceleration in carrier coordinate system, using the above information to update state;Magnetometer outputs magnetic field intensity in b system, DVL outputs velocity in the coordinate system of DVL, using the above information to update measurement, deduce simplified 9-dimensional state Kalman filter, estimate the motion of carrier, and then effectively correct point cloud distortion.Realize the point cloud in the same data frame is transferred to the coordinate system of the starting point cloud in the frame, complete the goal of point cloud distortion correction, improve the precision of LiDAR navigation.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Dual ridge four row carrot harvester

The present application belongs to the technical field of agricultural machinery, and particularly relates to a double-ridge four-row carrot harvester, which comprises a frame, a power device arranged in the frame, a walking device arranged below the frame, and oblique clamping and conveying devices arranged on both sides of the frame. Each of the oblique clamping and conveying devices comprises a conveying support, two clamping and conveying monomer groups arranged on the conveying support, a clamping driving wheel, a clamping driven wheel, a clamping conveying belt, and a plurality of tensioning wheel assemblies. The front ends of the two oblique clamping and conveying devices are provided with feeding devices, the upper sides of the two feeding devices are provided with supporting devices, the lower parts of the two supporting devices are fixedly connected with folding assemblies away from the frame, and the lower parts of the two feeding devices are provided with digging devices. The present application has a reasonable structure and can solve the problems of poor folding effect, easy lodging, and difficulty in guiding and feeding two rows of carrots into the oblique clamping and conveying device for conveying during harvesting.
Owner:WEIFANG JINPURUIEN MASCH EQUIP CO LTD

Fully automatic hydraulic step feed device

ActiveCN224589956UOrientation is accurateEven by force
The utility model discloses a full -automatic hydraulic pressure step -feed equipment, including drive mechanism, including a plurality of rotating electrical machines, rotating electrical machine drive screw rod autorotation, guide mechanism, including a plurality of mutually parallel arrangement's screw rod, and screw rod at least has two moving plate, chuck, each moving plate all are fixed with mutually coaxial arrangement's chuck, and the chuck has the passage hole that can hold or release to axle rod spare, wherein, moving plate and screw rod all are movable assembly, and the outer wall of screw rod includes outer thread section and light axle section, and adjacent two moving plates are movable assembly with same screw rod through a screw nut and a linear bearing respectively, and different chuck alternately holds and releases to axle rod spare and alternately axial motion, and the feed inlet of the chuck in upstream has a plurality of round table cavities, and the feed inlet of the chuck in downstream has a round table cavity. Adopt the utility model guide accurate, prevent skew, adapt to the characteristic of long axle rod spare.
Owner:JIANGSU XIAOYE INTELLIGENT EQUIP CO LTD

Method and system for maneuvering target parameter estimation and long-time coherent accumulation detection

ActiveCN122085260BReduce operational complexityGood calculation efficiency
The application provides a motor target parameter estimation and long-time phase correlation accumulation detection method and system, which first carries out radio frequency conditioning and sampling on a radar original echo, carries out pulse compression after obtaining a discrete complex baseband signal, and outputs a range focusing but still containing range migration frequency domain signal. The core step utilizes a second order Keystone transformation to correct the second order range migration of the target, outputs a second order correction signal eliminating the range-azimuth coupling, and then searches the optimal speed through a Bayesian optimization and CPU parallel acceleration algorithm. On this basis, the IAR algorithm is utilized in combination with the optimal speed estimation value to correct the first order range migration, and phase compensation is carried out according to the speed matching phase factor to obtain a phase matching signal. Finally, the matching signal is subjected to a non-uniform fast Fourier transformation in a slow time domain to realize energy focusing, and the complete motion parameters of the target are solved through analyzing the peak position and amplitude characteristics in the Doppler domain.
Owner:SHANGHAI JIAOTONG UNIV

A mobile Beidou high-precision positioning multi-source data fusion method and system

ActiveCN121878758BSuppressing the problem of quality degradation of observation valuesStable and reliable outputAlgorithmSatellite observation
The application discloses a mobile Beidou high-precision positioning multi-source data fusion method and system, and relates to the technical field of high-precision navigation and positioning.The application suppresses the problem of satellite observation value quality degradation in a complex environment by means of tight coupling layer explicit modeling and online estimation of multipath error.In the tight coupling deep fusion and solving process, a first factor graph model is constructed, the multipath error is explicitly modeled as a state parameter to be estimated, and the multipath error is included in Beidou original observation factors.In the joint optimization solving process, the first factor graph model performs online real-time estimation and update on the multipath error as an independent degree of freedom, actively distributes and absorbs the part of the observation residual that can be attributed to the multipath interference into the state parameter, and enables the tight coupling solving module to output a more reliable and stronger anti-interference tight coupling optimal pose sequence and provide a stable absolute position even when the satellite observation condition is seriously polluted by the multipath.
Owner:JIANGSU KUAILU SEG TECH CO LTD

Antiskid ground-gripping correcting leather shoes

ActiveCN224112210Uimprove gripPlay an anti-slip roleSolesMedical scienceGrip forceControl theory
The utility model discloses an anti-skidding ground-gripping correcting leather shoe which comprises a shoe sole, an anti-skidding auxiliary mechanism is arranged at the lower end of the shoe sole, the anti-skidding auxiliary mechanism comprises a contact sole fixedly connected to the lower end of the shoe sole, and a first buffering hole is formed in the contact sole. A second buffer hole is formed in the front side, close to the first buffer hole, of the interior of the contact bottom, and the lower end of the contact bottom is fixedly connected with a supporting gasket. According to the anti-skidding ground-gripping correcting leather shoe, the shoe sole is in contact with the ground, so that the friction strip, the supporting gasket, the anti-skidding block and the main wear-resisting seat are in contact with the ground firstly, the friction strip and the anti-skidding particles play an anti-skidding role on a user, and the ground-gripping force of the shoe sole is improved under the shape acting force of the friction strip; and after the supporting gasket is in contact with the ground, the supporting gasket plays a supporting action force on the sole center of the sole, so that the sole of the user forms a complete arch, and the sole of the user is effectively corrected.
Owner:YONGJIA MAIJIADA SHOE IND MFG CO LTD

Concrete chiseling roughness illumination correction detection method and system

The invention belongs to the technical field of concrete construction quality detection, and particularly discloses a concrete chiseling roughness illumination correction detection method and system, and the method comprises the steps: collecting a color image and a depth map of a chiseling surface, and calculating a roughness saliency map and an exposure quality map; performing adaptive exposure correction on each image to obtain an enhanced image; taking the enhanced image, the depth map, the roughness saliency map and the exposure quality map as common input, and extracting initial texture features and geometric structure features to obtain an initial fusion feature map; respectively constructing a high-resolution texture flow and a low-resolution semantic geometric flow based on the initial fusion feature map, and fusing the high-resolution texture flow and the low-resolution semantic geometric flow to obtain a second fusion feature map; and performing frequency domain enhancement on the second fusion feature map to obtain a frequency domain enhanced feature map, and performing scabbling roughness grade classification to realize concrete scabbling roughness illumination correction detection. According to the invention, the problems of insufficient image reliability, limited model discrimination precision and poor environmental adaptability in the prior art are solved.
Owner:HOHAI UNIV

Manganese ore conveying belt anti-deviation structure

The utility model relates to the technical field of conveying belt auxiliary, a manganese ore conveying belt anti -running deviation structure, including support frame, both sides of support frame top are connected with two bearing feet through screw, wherein the inside between two bearing feet is provided with driving roller, the inside between the other two bearing feet is provided with driven roller, and the transmission is connected with conveying belt between the outside of driving roller and driven roller, the top of support frame and located inside equidistance fixed connection of conveying belt has U -shaped frame, the inside of U -shaped frame is all rotatively connected with parallel wheel, and the inside of U -shaped frame and located parallel wheel both sides are all rotatively connected with inclined wheel. The utility model has the advantages of parallel wheel, inclined wheel and the row wheel all with conveying belt cooperation uses, can real -time adjustment working condition, can fast, effectively correct the conveying belt of running deviation, makes conveying belt always keep on normal operation track, greatly improved the stability of manganese ore conveying, reduced the conveying interruption frequency due to running deviation.
Owner:SINO MANGANESE (HUBEI) TECH CO LTD