168 results about "Surface scanning" patented technology

A system for surface analysis of a cable layer. The system comprises an in-line surface scanner arrangement and a controller. The in-line surface scanner arrangement is for scanning a cable layer in or received from a cable manufacturing line, the scanner arrangement comprising one or more non-contact distance scanners arranged to measure distance to an outer surface of the received cable layer. The controller is arranged to receive scan data of the outer surface of the received cable layer based on signals received from the in-line surface scanner arrangement; extract surface texture data from the scan data; determine one or more properties of the surface of the cable layer based on the surface texture data; compare at least one determined property with one or more threshold criteria; and identify at least one of a surface feature of interest, a deviation, or a defect based on the comparison.

The invention belongs to the technical field of structured light three-dimensional measurement, and particularly relates to a super-density stripe structured light three-dimensional surface scanning method and system, and the method comprises the steps: obtaining camera parameters; projecting a super-density stripe structure light pattern formed by alternating wide bright and dark stripes to an object; acquiring an image by using a camera, and extracting a central point pixel coordinate of the stripe-structured light pattern by using a sub-pixel precision positioning method; calibrating a light plane equation of each stripe structure light pattern under a camera coordinate system by means of a plane target; reversely projecting the pixel coordinate of the central point of the stripe-structured light pattern into a ray and intersecting the ray with a corresponding light plane to obtain the three-dimensional coordinate of the ray and form an initial three-dimensional point cloud; and finally, carrying out gray scale estimation and filling on missing data caused by signal saturation or difficult positioning based on a radiation brightness physical model to obtain complete and accurate three-dimensional surface shape data. According to the invention, high-precision, high-density and high-integrity three-dimensional surface scanning is realized, and the reliability and applicability of a measurement result are remarkably improved.

The application discloses a scanning method of a scanning optical fiber displacement sensor and belongs to the technical field of optical fiber displacement sensors; S1: a scanning platform is established; S2: a scanning surface and the area of the scanning surface are determined; scanning light passes through a lens in a voice coil motor to output laser to irradiate on a to-be-scanned object; diffuse reflection occurs on the to-be-scanned object; after the scanning platform receives the reflected information light of the to-be-measured object, the voice coil motor is used to move the laser to a next position, and the scanning surface of the to-be-measured object is scanned; S3: in the scanning process, the displacement information d of the to-be-measured object is calculated and acquired by means of the reflected light power of the scanning surface and the light power emitted by the scanning platform. The present application improves the existing point type optical fiber displacement sensor into a scanning optical fiber displacement sensor, and the surface scanning is more accurate than single-point scanning, and the change of the object in the direction can be measured.

The invention relates to the technical field of material corrosion and protection, discloses a TP2 copper corrosion behavior testing method based on temperature regulation and control, and aims to solve the problem that in the prior art, various physical and chemical parameters in the corrosion process are difficult to synchronously obtain under the same microscale, so that a local corrosion dynamics mechanism cannot be deeply revealed. The core of the system is a coaxial three-function composite probe integrated with thermal, acoustic and electrochemical sensing units, and the coaxial three-function composite probe is matched with a synchronous laser heating module and a multi-physical field synchronous control system. During testing, the probe scans on the surface of a sample, local thermal disturbance is applied to each pixel point, and the interface temperature, acoustic impedance and corrosion rate data of the point are synchronously collected. According to the invention, through high integration in structure and accurate synchronization in time, the space mismatch error of multi-source measurement is eradicated, and multi-physical field distribution images which are accurately corresponding to each other can be obtained in situ and losslessly.

The invention discloses an intelligent weeding control method of a laser weeding robot and the laser weeding robot. The method comprises the steps that ground images are collected through a binocular depth camera, and weeds and seedlings are recognized; judging the relationship between the actual density of the inter-plant weeds and a preset density threshold value; when the actual density is greater than a preset threshold value, setting a first target speed to run the laser weeding robot, and planning a strike path based on the weed position to execute point descending type strike; and when the actual density is smaller than or equal to the preset threshold value, setting a second target speed for operation and starting a surface scanning mode to cover the high-density weed area. Dynamic matching of speed grading and strike strategies is achieved through a density threshold decision mechanism, the weeding rate is guaranteed, meanwhile, the operation efficiency is optimized, the problems of low-density working condition energy waste and high-density working condition clearing efficiency reduction are solved, and the adaptability of a farmland with complex weed distribution is comprehensively improved.

A surface scanning tool and methods of using a surface scanning tool to determine a surface shape of a tool. In embodiments, the surface scanning tool includes a laser, a detector, and a signal analysis module. The laser sends a beam of light that is reflected off a bottom surface of the tool. The detector receives the reflected beam of light and sends the reflected beam of light signals to a signal analysis module. The signal analysis module determines a surface shape of the bottom surface and triggers mitigation actions. In alternative embodiments, the surface scanning tool includes a camera and a signal analysis module. The camera takes a picture of the bottom surface of the tool and sends the image to the signal analysis module. The signal analysis module determines the surface shape of the bottom surface and triggers mitigation actions.

The invention provides a nondestructive testing method for the solidification state of a solid-state battery based on multi-mode ultrasound, and the method comprises the steps: carrying out the ultrasonic surface scanning of the solid-state battery through employing an ultrasonic testing device, and collecting a transmission signal and an echo signal of an ultrasonic wave; calculating the transmission signal sound velocity and the transmission signal peak-to-peak value of each point on the scanning surface of the solid-state battery; mapping to generate an HSV (hue, saturation and value) color pixel map; judging the curing state of the solid-state battery according to the transmission signal sound velocity and the HSV color pixel map; when the curing state is not good, positioning a suspicious defect area according to the HSV color pixel map; the curing defect type is determined from the display of the HSV color pixel map and a B-scan map generated from the echo signal. According to the method, nondestructive detection of the solid-state battery curing state can be realized, and cooperative improvement of detection efficiency and accuracy can be realized.

The invention relates to the technical field of optical equipment, in particular to a three-dimensional confocal X-ray emission-fluorescence bimodal spectrometer and a use method. X-ray tube focus point source excitation and three-dimensional confocal light path design are adopted to generate a bimodal signal source, and X-ray emission and X-ray fluorescence bimodal signals of chemical elements in a sample are respectively collected and obtained through a position sensitive detector and an energy sensitive detector through a confocal bent crystal focusing light splitting system and a fluorescence light path; confocal scanning of a three-dimensional space in a sample is completed through a sample loading and position self-control system, and the absolute content of a chemical element in a specific form is calculated through a signal linkage analysis module. The spectrometer can realize synchronous quantitative determination and analysis of forms and contents of chemical elements, solves the problems that XRF and XES can only be operated step by step, form proportion and total data cannot be associated in real time, and an XES spectrogram has spectrum peak overlapping interference and the like, and has one-dimensional point determination, two-dimensional surface scanning and three-dimensional body analysis capabilities.

The invention is applicable to the technical field of petroleum detection, and relates to a method for identifying the spatial maturity of a petroleum inclusion, which comprises the following steps: collecting and processing a rock sample containing the petroleum inclusion; placing the processed sample on a sample table of an O-PTIR instrument, setting surface scanning parameters, performing surface-by-surface scanning on the petroleum inclusion in the sample in the Z-axis direction, and obtaining photo-thermal infrared spectrum images and data of different Z-axis layers; preprocessing the photo-thermal infrared spectrum image and data; a three-dimensional space maturity distribution model of the petroleum inclusion is constructed, characteristic peaks related to maturity in photo-thermal infrared spectrum images of different Z-axis layers are analyzed, a petroleum inclusion standard spectrum database with known maturity is combined, a quantitative relation between characteristic parameters and the maturity is established, and the maturity of the petroleum inclusion is calculated. Therefore, maturity values of the petroleum inclusion in different spatial positions are determined; and displaying the maturity information in a visual mode. According to the invention, accurate determination of the petroleum inclusion space maturity is realized.

A method for adaptive repair of a freeform surface includes: performing data discretization on a worn workpiece to obtain a worn body to be repaired, and performing adaptive segmentation on the worn body to be repaired to obtain initial reference surfaces, wherein the initial reference surfaces include a worn model bottom surface and a standard model top surface; constructing a freeform surface slice based on each of the initial reference surfaces; calculating surface curvature distribution data of the freeform surface slice, and constructing a curvature-overlapping pitch optimization model to perform adaptive trajectory filling on the freeform surface slice to obtain freeform surface scanning trajectories; and performing topological sorting on scanning trajectory points of the freeform surface scanning trajectories to obtain processing trajectories, fitting the processing trajectories, and performing adaptive repair on the freeform surface. This method eliminates a severe “staircase effect” in a traditional slicing method.

The invention discloses a crane metal structure damage composite detection method and system based on electromagnetic ultrasound and array eddy current. The method comprises the following steps: acquiring component structure information, determining a to-be-detected area on the surface, and planning an eddy current surface scanning path and an electromagnetic ultrasonic plate thickness scanning path; the array eddy current module scans and collects complex impedance data in a snakelike manner to generate a surface damage indication diagram and extract a suspected damage area; scheduling an electromagnetic ultrasonic module to perform directional scanning according to the position of the suspected area, collecting a guided wave echo signal, and extracting defect depth, plate thickness reduction amount and frequency spectrum characteristics; and performing registration normalization on the two types of features under a unified coordinate system, constructing a multi-dimensional damage feature vector, establishing a damage inversion model by combining material parameters, plate thickness and a stress field, outputting damage geometric parameters and corrosion volume, and realizing damage type identification and grading evaluation according to damage indexes. According to the scheme, cooperative detection and quantitative evaluation of surface and internal damage of the crane metal structure can be realized, and the method has an excellent engineering application prospect.

The invention discloses an all-fiber three-dimensional tomography system, which is used for performing three-dimensional tomography on an object to be observed at a high speed and comprises a light source, a first optical coupler, a first optical circulator, a first optical collimator, a first convex lens, an electric control attenuator, a second optical circulator, a second optical collimator, a second convex lens, a second optical coupler and a balance detector. The light source included in the all-fiber three-dimensional tomography system can quickly perform line or plane scanning on optical scattering media such as biological tissues and the like by utilizing a technology of capturing optical signals to obtain images and adopting an all-fiber line architecture, so as to obtain high-resolution three-dimensional images.

The application discloses a kind of based on the growth environment multi-factor comprehensive monitoring method and system of old tree protection, including step (S1) non-invasive perception network construction: in the crown layer area of old tree deployment meteorological monitoring unit, real-time acquisition photosynthetic active radiation intensity PAR and crown layer surface temperature T c ; with trunk as center, soil sensor array is radially laid in root distribution area, and soil volume water content θ and soil water potential are monitored in layers;Micro-invasive thermal diffusion probe is installed at the breast diameter of trunk, and xylem original liquid flow flux SF raw Is continuously measured, and initial liquid flow flux SF raw Calibration is carried out;Foundation interferometric radar is erected outside the protection zone, and three-dimensional spatial distribution point cloud P r Of root is obtained by surface scanning.This application can realize more comprehensive old tree monitoring, and timely find the existing abnormality of old tree environment.

This fusion bonding method for fusion bonding a second member to a first member comprises an arrangement step and a scanning step. The arrangement step is for arranging a susceptor on the side of the second member opposite to the surface that faces a repair target area of the first member, the second member being arranged according to the repair target area, and a heat transfer member being interposed between the susceptor and the second member. The scanning step is for scanning a magnetic field generation device along the surface of the susceptor from the side of the susceptor opposite to the surface facing the heat transfer member after completion of the arrangement step. The susceptor is a member that generates heat by the magnetic field of the magnetic field generation device in the scanning step.

This invention discloses a method, apparatus, and system for detecting deviations in warehouse material stacks. The method includes acquiring scanning data from each surface scanning unit; determining whether there is abnormal data in the scanning data to obtain a determination result; executing a first processing flow if the determination result is yes; and executing a second processing flow if the determination result is no. The method, apparatus, and system for detecting deviations in warehouse material stacks of this invention scan the detection surface using surface scanning units and determine whether there is interference between the stack side and the scanning surface by judging whether there is abnormal data in the scanning data. This allows for the simultaneous detection of deviations in all materials constituting the stack, resulting in high detection efficiency and strong adaptability.

The utility model provides a fan impeller detection platform, which particularly relates to the technical field of fan impeller detection, and comprises a base, foundation bolts used for being fixed on the ground are arranged below the base, a lifting assembly and a processing table are respectively arranged above the base, and the detection platform is fixedly supported above the lifting assembly. A driving motor is arranged in the center below the detection platform, an output shaft of the driving motor penetrates through the detection platform and is connected with a rotating seat arranged above the detection platform, and a clamping assembly is fixedly arranged on one side above the detection platform; according to the utility model, the lifting assembly in which the lifting hydraulic rod is linked with the lifting frame is adopted, and a bidirectional slide rail structure arranged on the processing table is matched, so that the three-dimensional linkage adjustment of the height of the detection platform and the spatial position of the detection sensor is realized. Through cooperative work of transverse movement of the first sliding rail and vertical movement of the second sliding rail, the detection sensor can automatically complete full-circumferential-surface scanning of the impeller along a preset track, and the problem that a measurement blind area exists in a traditional single-degree-of-freedom detection system is effectively solved.

This invention relates to the field of laser measurement technology, specifically to a laser sensor-based device for measuring the dimensions of a noise-canceling headphone shell. The device includes a worktable with a rotating assembly at its center for adjusting the headphone shell's display posture. A rotating component, an inner lifting component, and an outer lifting component are sequentially arranged around the rotating assembly. A laser emitting device and a vision acquisition device are distributed on either side of the rotating assembly. Through automated motion control and optimized measurement path, rapid and comprehensive surface scanning can be achieved, significantly reducing the measurement time for a single piece and meeting the online inspection requirements of production lines. During scanning, if the camera loses its spot due to a sudden change in surface curvature, the system can immediately pause the inner lifting and start the outer lifting. A pull rod and sliding sleeve drive the acquisition carriage to slide along an arc-shaped guide rail, automatically switching the laser emission angle and acquisition angle between obtuse and acute angles to ensure the spot remains stably on the measured surface.

The invention relates to the technical field of three-dimensional scanning, and particularly discloses an automatic scanning method and system based on a high-precision scanner, and the method comprises the steps: configuring a scanning parameter set comprising a rotating disc, a scanner and an overturning control parameter; scanning the front surface of the workpiece based on the set and intelligently eliminating turntable interference point clouds to obtain pure front surface data; controlling automatic turn-over based on the front point cloud features, verifying the pose, and compensating the deviation; and finally scanning the bottom surface and fusing the bottom surface and front surface data into a complete three-dimensional model. The system comprises a central processing module, a scanner, a turntable and an overturning module. According to the method, full-process automation from front scanning and automatic turning to bottom scanning is realized, manual intervention is remarkably reduced through configuration parameter setting and interference point cloud automatic elimination, and scanning efficiency and data consistency are improved.

The embodiment of the invention discloses a data processing method and device, computer equipment and a storage medium. The method is applied to a scanning scene of a target scanning object, the target scanning object is provided with a target or a first mark point installed in a mouth, the interior of the mouth of the target comprises the first mark point, and the method comprises the following steps: obtaining mouth scanning data of the target scanning object, the oral scanning data comprises intraoral scanning data and first mark point scanning data of the first mark point; acquiring surface scanning data of the target scanning object, wherein the surface scanning data comprises the first mark point scanning data; and aligning the mouth scanning data with the surface scanning data according to the first mark point scanning data to obtain target data. According to the embodiment of the invention, data alignment is carried out through the public mark points (the first mark point scanning data) in the mouth scanning data and the surface scanning data, so that accumulated errors can be reduced, and the splicing precision between the mouth scanning data and the surface scanning data is improved.

A system is provided for obtaining data on a position of a spray gun relative to a surface to be coated provided in a space, comprising a data acquisition device. The data acquisition device comprises a spray gun mount arranged to rigidly connect the device to the spray gun, a beacon sensor module arranged to receive beacon data from one or more reflective beacons located in the space, a surface scanning module arranged to scan the surface and to provide scanning data by scanning the surface and a processing unit. The processing unit is arranged to receive the beacon data, based on the beacon data, determine localisation data indicating a location of the device within the space; and based on the localisation data and the scanning data, determine position data indicating a position of the spray gun relative to the surface.

The invention provides a laser surface scanning imaging method for trace elements in diagenetic minerals, which comprises the following steps: (1) preparing a sample piece by using diagenetic minerals to be detected, carrying out microscopic observation on the structural characteristics of the sample piece, and determining a laser surface scanning area of the sample piece; (2) selecting a pipeline made of a Teflon material as a sample introduction pipeline; (3) performing instrument tuning on the laser ablation system and the inductively coupled plasma mass spectrometer; (4) setting on-machine test conditions, and carrying out on-machine test on the sample piece; (5) carrying out data processing on the original data obtained by testing and imaging; and (6) carrying out relative sensitivity factor correction on the semi-quantitative data to obtain a quantitative result of the to-be-detected element. According to the method, the data accuracy of LA-ICP-MS micro-area in-situ surface scanning is effectively ensured, the signal-to-noise ratio of the signal intensity and the imaging sensitivity are improved, the fabric characteristics of the sample are accurately expressed, meanwhile, the sample preparation procedure is simplified, the detection cost is reduced, and large-scale popularization and application are facilitated.

This invention relates to the field of automated robot assembly technology, specifically a method and system for robot assembly tasks based on 3D vision. The method includes the following steps: Step 1: Workpiece surface scanning: Scan the workpiece surface, construct a 3D model of the workpiece surface, determine each measurement point n, and construct a point cloud based on the depth measurement values ​​of the measurement points; For the first time, the ICP algorithm is used to solve the robot assembly task by employing a low-cost sensor, that is, the cost function is iteratively minimized based on the estimation of the point correspondence between two point clouds, making the process robust to incorrect geometric alignment. In the subsequent search phase, the Lissajous function is used for surface sliding and admittance control, enabling the robot to complete the assembly task under the condition of random position errors.

The present disclosure belongs to the technical field of nuclear power and specifically relates to a modularized nozzle multi-region ultrasonic inspection integrated device. The present disclosure is based on a mechanical hand nozzle safety end inspection tool positioning and installation mode. Precise, safe and reliable installation of the nozzle safety end inspection tool is achieved, and underwater secondary calibration can be realized through multi-pose adjustment of the mechanical hand. A collaborative inspection operation mode based on double mechanical hands is adopted. The mechanical hand is used for spatial curved surface scanning of a nozzle port, the probe has good adhesion, the double mechanical arms can realize symmetrical inspection of the nozzle, and full-range dead-angle-free inspection is realized. The present disclosure adopts a modularized inspection function integrated scheme, different inspection tools are mounted on the same main component, a multi-tool and multi-function collaborative inspection mode of the nozzle region is realized, and the inspection range coverage and inspection precision of the nozzle region are improved.

Described herein is a system (100) for performing extra-oral scanning of a scan object (200). The system (100) comprises a projecting means (102), a first visual recording means (104), a processor (114), and a display (116). The projecting means (102) is configured to project a pattern (108) onto the scan object (200). The first visual recording means (104) is configured to obtain surface scan data based on the position and orientation of the scan object (200) relative to the pattern (108). The first visual recording means (104) is configured to obtain surface scan data while the scan object (200) is moved through six degrees of freedom. The processor (114) generates a 3D model based on the obtained surface scan data. The display (116) is configured to display the generated 3D model. A device (101) for and method (300) of scanning of a scan object (200) are also described.

Embodiments of the present disclosure provide a method and device for determining the profile of a tire component before winding, electronic equipment and medium, relating to the field of tire manufacturing. The method comprises: determining a scanning parameter value according to a preset scanning parameter; based on the scanning parameter value, controlling the winding machine to move along a direction perpendicular to the center axis of the tire blank, and performing planar scanning on the surface of the tire blank through the distance measuring sensor placed on the winding machine to obtain planar scanning initial profile data; determining the moving track of the rotation center of the winding machine when performing planar scanning according to the preset scanning parameter, the scanning parameter value and the planar scanning initial profile data; controlling the winding machine to move according to the moving track, and performing curved surface scanning on the tire blank through the distance measuring sensor to obtain curved surface scanning actual profile data; determining the profile curve of the tire blank after curved surface scanning according to the moving track and the curved surface scanning actual profile data, and taking the curved surface scanning profile curve as the outer profile of the tire blank.

The invention relates to the technical field of semiconductor production and manufacturing, and provides a silicon crystal ingot laser cutting method which comprises the steps that a subsurface scanning path and a target depth are generated based on coordinate data of an operation station, the scanning path is subjected to self-adaptive planning according to subsurface curvature and crystal orientation, and the target depth is obtained; the target depth is determined as the initial priority area of the crack in the silicon crystal ingot; when the first light beam is used for scanning the target depth along the scanning path, a high-resolution detector integrated in an optical imaging system is used for capturing an image sequence formed by cracks in real time; crack width data are extracted from the image sequence, and continuous distribution of crack widths is obtained through filtering and normalization processing; executing a corresponding crack control strategy according to the crack width level; and starting a phase modulation system of the second light beam for the crack reaching the preset crack width level. According to the method, accurate control over cracks and self-adaptive planning of the cutting path are achieved, and the cutting efficiency and quality of the silicon crystal ingot are improved.

A laser scanning system includes an emitting device, a transmitting device, a first rotating mirror device, an optical path shaping device, a second rotating mirror device, and a receiving device. The optical path shaping device can directly reflect a first beam propagating on the same horizontal plane into multiple third beam surfaces propagating in different horizontal planes. The key to this application is that, through the combined action of the first rotating mirror device and the optical path shaping device, the single probe beam emitted by the emitting device is converted into multiple third scanning beams propagating in different horizontal planes, completely replacing the function of the galvanometer device in the prior art. Therefore, the laser scanning system can achieve surface scanning without a galvanometer motor, eliminating the limitations imposed by the galvanometer motor on the stability and lifespan of the entire laser scanning system. This significantly improves the stability and lifespan of the laser scanning system of this invention. It also reduces the regularity of the galvanometer's accelerated oscillation damage, resulting in a more uniform point cloud map.

The application provides a real-time data processing method and medium of a dynamic DWS six-surface scanning system, relates to the technical field of DWS scanning, and comprises the following steps: constructing a unified time reference, mapping original point cloud data collected by a DWS six-surface scanner, performing observation confidence fusion of each voxel grid according to the mapping result, performing conflict voxel detection, performing local reconstruction processing according to voxel anomaly identification, updating the observation confidence fusion result by using the local reconstruction result, performing global verification identification, converting the updated observation confidence fusion result into a structured description code for output, and solving the technical problems that the existing six-surface scanning cannot handle the multi-scan surface asynchronous sampling error based on time synchronization and linear speed compensation, and that the point cloud is dislocated and the structure reconstruction is inconsistent in a dynamic conveying scene. The unified dynamic space-time reference and voxel-level multi-source confidence fusion are constructed by using an encoder pulse, and the technical effects of improving the DWS measurement accuracy and reliability are achieved.

The application discloses a kind of composite insulator internal defect microwave detection system and visual quantitative evaluation method, belong to microwave nondestructive testing technical field, detection system includes vector network analyzer, computer, test piece, coaxial cable, rectangular waveguide and fixture, three-axis scanning table, scanning table controller;Evaluation method includes: using detection system to carry out cylindrical surface scanning to test piece to obtain the reflection signal of each scanning point on test piece;Reflection signal is adaptively direct wave suppression processing to obtain defect image after direct wave suppression;Defect image is processed to obtain defect image with suppressed background noise and enhanced defect region contrast;Based on high-contrast defect image, its gray histogram is used to determine threshold, image segmentation is carried out, and binary defect image is obtained;Based on binary defect image, defect position and area evaluation are carried out.The application can effectively carry out high-precision visual detection and accurate quantitative characterization to the internal defect of composite insulator, and has important application value for ensuring the smooth and safe operation of power system.

The invention discloses a honeycomb core component processing surface shape precision measurement method, which comprises the following steps: integrating a line laser sensor and a numerical control machine tool, calibrating a sensor installation inclination angle, scanning and measuring a honeycomb core processing surface, and splicing measurement data of single scanning into whole surface morphology data of a honeycomb core. Honeycomb grid topological structure identification is carried out on a top view of the honeycomb core surface morphology data, morphology data of each honeycomb edge are segmented, noise data such as burrs and abnormal points contained in the morphology data are removed, surface shape data of each honeycomb edge are extracted, surface shape data of the whole honeycomb core are spliced according to original positions of the surface shape data, registration with a theoretical mathematical model is carried out, and the surface shape data of the honeycomb core are obtained. And calculating the error of the measured surface shape of the honeycomb core relative to the theoretical mathematical model. According to the method, the problem of difficulty in surface shape measurement and data processing of the honeycomb core with the discontinuous thin-wall structure is effectively solved, and the measurement requirement of the surface shape precision of the actually-processed honeycomb core can be met.