30 results about "Surface scanning" patented technology

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 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.

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 invention discloses a layer thickness self-adaption method and system for 3D printing concrete. The system is used for achieving the method. According to the method, the technical problems that in traditional fixed layer thickness printing, single-layer thickness deviation accumulation is caused by factors such as material fluctuation, and then total height errors of components and uneven layers are caused are solved. The method comprises the steps that after printing of each layer (N layers) is completed, three-dimensional shape information of the upper surface of the layer is obtained through the surface scanning distance measuring unit, and actual height distribution data are generated; comparing actual data with theoretical model slice data, and calculating height deviation information; on the basis of the deviation information, generating a compensation strategy comprising a reference height adjusting instruction for the fine-adjustable printing platform and / or a dynamic adjusting instruction for printing parameters of the next layer (N + 1); and finally, executing the strategy and starting printing of the next layer. Closed-loop feedback control in the printing process is achieved, errors can be compensated layer by layer in real time, and the overall size precision and interlayer quality of a printed component are effectively improved.

This invention discloses a scanner with automatic page-turning function, relating to the field of scanner technology. It includes a book placement component comprising an adjustment component, an auxiliary page-turning component, a suction page-turning component, and a book-up / down monitoring component. The auxiliary page-turning component is detachably mounted on the side surface of the adjustment component, the suction page-turning component is detachably mounted on the side surface of the adjustment component opposite to the auxiliary page-turning component, and the book-up / down monitoring component is detachably mounted on the bottom of the adjustment component. A book temporary placement component is also included, detachably mounted on the side surface of the book placement component. Finally, a scanning component is detachably mounted on the side surface of the book temporary placement component, effectively preventing automatic page turning of scanned books and handling situations where multiple pages are turned during the page-turning process.

This invention belongs to the field of geological and mineral survey technology, specifically involving a comprehensive survey system for the rubidium enrichment mechanism of metamorphic rocks based on micro-area in-situ technology. It includes a module for precise characterization of rubidium occurrence state through in-situ petrography, a module for multi-dimensional isotopic mass spectrometry combined with analysis, a module for quantitative inversion of rubidium migration and enrichment behavior, and a module for spatiotemporal coupling and mineralization prediction of multi-stage metamorphic events. These four modules adopt a dual-closed-loop coupling architecture. This invention achieves a significant improvement in spatial characterization accuracy and comprehensiveness, completely overcoming the limitations of existing two-dimensional characterization techniques. By establishing an X-Y-Z three-dimensional coordinate system through a three-dimensional spatial coordinate calibration unit, it achieves full-dimensional characterization of rubidium in the plane and depth directions of metamorphic rock samples. Combined with hierarchical chemical extraction and time-of-flight secondary ion mass spectrometry nanoscale surface scanning technology, it achieves for the first time precise decoupling of the three occurrence states of rubidium: lattice state, adsorption state, and fluid inclusion state, breaking through the technical bottleneck of traditional methods being unable to distinguish the occurrence states of rubidium.

The application discloses a complex conduit first-order continuous center line reconstruction method based on scanning point cloud data and belongs to the field of engine geometric parameter digitization detection. After obtaining scanning point cloud data of an outer surface of a conduit, straight pipe data and curved pipe data of the complex conduit are segmented. For the segmented straight pipe and curved pipe data, random sampling cylinder fitting and circle fitting operation based on intersection of a vector point and a main plane are respectively performed to obtain trend lines of the straight pipe and the curved pipe. For the trend lines of the straight pipe and the curved pipe, center points of different pipe sections based on equally-spaced vertical section planes are solved, and linear fitting is respectively performed on the center points of the different pipe sections to obtain a plurality of discontinuous center line sections of the complex conduit. A cubic spline curve is adopted to perform first-order derivative interpolation fitting between adjacent straight line sections and circular arc section center lines to obtain a complex conduit first-order derivative continuous center line. The reconstructed center line is used as a reference for calibration of a pipe special-purpose measuring device measuring capacity.

Methods and systems for diagnosing a change of alignment of and / or to a laser rangefinder unit are disclosed. A shock detection means detects a mechanical shock acting upon a laser rangefinder unit and outputs shock data that enables an assessment of a mechanical shock load on the laser rangefinder unit. A camera may capture an image of a vicinity of a scanning region of a detection surface and create first image data. A verification of whether the first image data includes a signal of a laser light beam transmitted by the laser rangefinder unit that is incident on the detection surface at predetermined reference location data is made. The detection surface may include a localized structure at a predetermined position of the scanning region, where the localized structure characteristically reflects the laser light beam transmitted by the laser rangefinder unit. A verification of whether a signal received by the laser rangefinder unit includes a signal from the localized structure at predetermined reference location data is made.

An inspection system includes a scanner and a computing device. The scanner is configured to scan an inner surface of a hole in an object. The scanner is configured to generate a plurality of images. Each one of the images represents one of a plurality of sections of the inner surface of the hole. The computing device is coupled to the scanner to receive the plurality of images. The computing device is programmed to combine the plurality of images to form an image. The image represents the inner surface of the hole. The computing device is programmed to evaluate a surface characteristic of the inner surface based on pixel-intensity values of the image.

The application relates to the technical field of three-dimensional scanning, and particularly discloses an automatic scanning method and system based on a scanner, which comprises the following steps: configuring a scanning parameter set containing a turntable, a scanner and a turnover control parameter; scanning a front surface of a workpiece based on the set and intelligently removing a turntable interference point cloud to obtain pure front surface data; automatically turning over based on front surface point cloud features, verifying a pose, compensating for deviation, finally scanning a bottom surface and fusing the bottom surface with the front surface data to form a complete three-dimensional model; and the system comprises a central processing module, a scanner, a turntable and a turnover module. The application realizes full-process automation from front surface scanning, automatic turning over to bottom surface scanning, significantly reduces manual intervention through parameter setting and automatic interference point cloud removal, and improves scanning efficiency and data consistency.

This invention discloses an intelligent sandblasting device and method for large, irregularly shaped structures, comprising a track system; a hanger mounted on the track system, which sequentially passes through a first scanning chamber, a sandblasting chamber, and a second scanning chamber along the track system, the hanger being used to hang the workpiece; the first scanning chamber, the second scanning chamber, and the sandblasting chamber are all located below the track system, the sandblasting chamber being used to perform omnidirectional sandblasting on the workpiece after it has been scanned by the first scanning chamber; the first and second scanning chambers are used to perform omnidirectional dynamic scanning of the workpiece, and respectively transmit the generated 3D topographic data and the 3D topographic data after sandblasting to the control system in real time; the workpiece can rotate relative to the scanning chamber and / or the sandblasting chamber. This invention provides an intelligent sandblasting device and method for large, irregularly shaped structures, capable of 360-degree sandblasting without blind spots, and constructing a fully automated closed-loop process of surface scanning-sandblasting-inspection.

A system and method for manufacturing custom fit artificial nails includes a 3D surface scanning module and a 3D printing module and use thereof. A central processing module is connected to the 3D surface scanning module and the 3D printing module and performs: operating the 3D surface scanning module to obtain an image of a user's hands / feet; processing the image to create an input 3D model of nails of the user; generating an output 3D model corresponding to artificial nails matching dimensions of the user's nails according to the 3D input model; operating the 3D printing module to manufacture artificial nails according to the output 3D model; and generating medical data by correlating the identified features of the user's nails with known medical conditions, in order to diagnose a medical condition of the user which is known to exhibit the identified features as a symptom. Alternatively, or additionally, medicinal ingredient may be included in the artificial nail to treat the medical condition of the user. Embedded devices, sensors or an RFID chip may be integrated into the artificial nail.

Disclosed is a scanning and micro-mass imaging technology using a probe. The technology includes a probe, a probe moving module, an optical microscopic measurement module, an oscillation excitation module, a probe position measurement module, a quartz crystal oscillator, an oscillation signal collection module, a speed-sensitive switch, an integration cell, a software processing module, and a sample. The probe is placed perpendicularly, a top end of the probe has a dual-electrode mode of an electrode S1 and an electrode S2, and the quartz crystal oscillator is coated with the sample. The probe performs multi-point, line and surface scanning to detect properties such as a micro-mass and viscoelasticity of the sample, such that distributions of micro-mass and viscoelasticity changes can be obtained in situ, and reaction mechanisms in different regions can be obtained.

The application relates to the technical field of image processing, and discloses a production quality detection method of a magnetic material based on image detection. The method obtains a surface scanning image of the magnetic material, constructs a multi-level gray gradient field, identifies and tracks a gray abnormal convergence point to form a candidate defect track cluster, and selects an effective track cluster through space-time consistency verification. The dynamic texture divergence of the effective defect track cluster is calculated, the structural entropy of the multi-level gray gradient field is combined, and an image structure instability index is obtained. A local binary pattern histogram of the surface scanning image is extracted, is decomposed into a base mode component and a residual mode component, and a mode separation degree is calculated according to a distribution offset. According to the image structure instability index and the mode separation degree, a comprehensive quality evaluation value is generated, compared with a preset threshold, and the quality grade is determined. The application can distinguish real defects from material inherent textures and color difference interference, and improves detection accuracy and reliability.

This invention discloses a system and operating method for reducing silicon wafer warpage in semiconductor epitaxial wafer processes, relating to the field of semiconductor technology. The invention includes a reaction chamber with a door panel hinged to its inner wall, a placement mechanism, a cleaning mechanism, and an air blowing mechanism inside the reaction chamber. By opening the door panel, the silicon wafer is placed on top of several ejector pins. During placement, the outer side of the silicon wafer presses against a placement stage, pushing a limiting plate along an axis and compressing a first spring. The reaction force of the first spring causes the placement stage to flexibly limit the silicon wafer's perimeter, preventing it from shifting in the process airflow. Subsequently, a hydraulic system is activated, causing a laser scanner to descend and perform a full-surface scan of the silicon wafer, accurately detecting warpage data. For example, when a region is detected to warp upwards by three millimeters, an external processor calculates that the corresponding ejector pin below that region needs to be lowered by two millimeters to accommodate the deformation.

The application relates to a full-surface scanning semiconductor chip flatness detection device and method. The method comprises the following steps: performing unique coding identification on multi-view image data of a to-be-detected semiconductor chip to obtain chip surface coding anchor point data; performing cross-view matching on coding signature data in the chip surface coding anchor point data to obtain cross-view corresponding relationship data; performing direct geometric positioning on pixel coordinate data in the multi-view image data according to the cross-view corresponding relationship data to obtain three-dimensional coordinate data of each anchor point; performing discrete topological construction on the three-dimensional coordinate data of each anchor point to obtain discrete topological height data of the to-be-detected semiconductor chip; and performing reference deviation analysis on the to-be-detected semiconductor chip according to the discrete topological height data to obtain chip flatness data. The detection precision of the flatness under complex imaging conditions, such as the existence of a high-reflectivity region, a local shielding region, a repeated texture region and uneven brightness distribution on the surface of the to-be-detected semiconductor chip, is effectively improved.

This invention discloses an intelligent moisture content detection system and method for mine exits based on the natural caving method. The system includes: a mobile inspection platform; an infrared thermal imager and an air-coupled step-frequency continuous wave radar mounted on it; and an industrial control computer and a host computer, each communicatively connected to the other two. The industrial control computer is configured to: control the infrared thermal imager to perform surface scanning of the area to be measured, acquiring surface infrared thermal images; identify and locate suspected high moisture content anomaly areas in real time based on a preset temperature anomaly analysis model; control the mobile inspection platform to move to the area and trigger the air-coupled step-frequency continuous wave radar to perform directional profile scanning; process the radar echo signal and obtain the soil profile moisture content distribution information based on a pre-trained support vector regression (SVR) model; and finally send the results to the host computer for display and storage. This invention, through the cascading of infrared initial screening and radar precision measurement, achieves rapid, accurate, and three-dimensional detection of moisture content in the mine exit area, providing reliable data support for early warning of disasters such as water inrush and landslides.

The application discloses a thermal barrier coating based on ultrafast laser-induced interface nucleation and pinning effect and a preparation method thereof, which comprises the following steps: preparing an MCrAlYX metal bonding layer on the surface of an alloy base; performing surface scanning treatment on the MCrAlYY metal bonding layer by using an ultrafast laser; and finally preparing a ceramic surface layer on the surface of the MCrAlYX metal bonding layer by using an electron beam physical vapor deposition method. Through the high-density crystal defects and the periodic heat accumulation effect induced by the ultrafast laser at the micro-nano scale, the directional segregation of trace active elements is actively regulated, and the nucleation potential barrier of the EB-PVD gas phase deposition is reduced, so that the periodic anchoring of the composite oxide pin and the significant refinement of the ceramic surface layer structure are realized, and the interface bonding force and the service life of the coating system are improved.

A machine for checking flexographic printing plates, or offset plates, or plate assemblies, or printed surfaces, including a base, a support plane, associated with the base, for at least one printing plate, or offset plate, or plate assembly, or printed surface, the surface or physical characteristics of which are to be checked and controlled, a control unit, and a surface scanning unit of the at least one printing plate, or offset plate, or plate assembly, or printed surface to be checked. The scanning unit is operatively connected to the control unit, and is configured to acquire a real image of the at least one printing plate, or offset plate, or plate assembly, or printed surface to be checked.

This application discloses a 3D scanning method and system based on reverse positioning and 3D camera fusion. The method includes: establishing a reference coordinate system for the measurement scene and setting multiple target points on the stable reference body; scanning the target points with a positioning camera to obtain a reverse positioning matrix; determining the relative relationship matrix between the 3D camera and the positioning camera using a preset calibration method; wherein the 3D camera and the positioning camera are rigidly connected; scanning the object to be measured placed in the measurement scene with the 3D camera to obtain point cloud data of the object to be measured; and obtaining the coordinates of the object to be measured in the reference coordinate system based on the reverse positioning matrix and the relative relationship matrix between the 3D camera and the positioning camera. This invention uses a high-resolution 3D camera to scan the object and a positioning camera for positioning, which improves the surface scanning effect, eliminates the need for additional positioning components, increases flexibility, and meets the requirements of high-precision dimensional measurement.

Provided is a workpiece end position detection device that can accurately detect the position of the end of a workpiece even in a case where the workpiece has a tilted portion. A workpiece end position detection device (100) has: a control section (11) that controls the position of a machining head (30) on which a gap sensor (31) is mounted so that the gap detected by the gap sensor (31) is constant while the machining head (30) is scanned along the surface of a workpiece; and a workpiece end detection section (13) that detects the position of the end of the workpiece based on the coordinate position of the machining head (30) when the amount of change in the gap between the gap sensor (31) and the workpiece becomes equal to or greater than a prescribed threshold value during execution of the control by the control section to make the gap constant.

In a forklift equipped with a 2D LiDAR sensor for detecting the orientation of a pallet, the calibration of the 2D LiDAR sensor is performed appropriately. [Solution] The calibration tool 10 for a two-dimensional LiDAR sensor 104 for detecting the orientation of a pallet located in front of a forklift 100 comprises a target plate 12 to which laser light from the two-dimensional LiDAR sensor 104 is irradiated, and a support portion 14 for supporting the target plate 12 perpendicularly to the upper surface 102a of the forks 102 of the forklift 100. The target plate 12 is configured to reflect laser light toward the two-dimensional LiDAR sensor 104 over a predetermined range in the width direction of the target plate only when the laser light from the two-dimensional LiDAR sensor 104 is scanned parallel to the upper surface 102a of the forks 102 at a predetermined height from the upper surface 102a of the forks 102.

The application discloses a kind of digital measurement method and device for oil sludge thickness of oil sump, comprising: using range scanner to scan the surface of unused new oil sump to be measured, and determining the measurement point coordinates of oil sump based on scanning data;Using range scanner, according to the preset scanning path, the metal base of the new oil sump corresponding to the determined measurement point is measured, and the measurement result is used as the reference distance;Using range scanner, according to the preset scanning path, the measurement point on the oil sump to be measured covered by oil sludge after test is measured, and the measurement distance is obtained;Based on reference distance, measurement distance and combined with temperature correction, the oil sludge thickness of the oil sump to be measured is calculated.The application can realize the automatic, digital, high-precision measurement of oil sludge thickness, and improve the detection efficiency and stability.

The application discloses a mine structure detection method based on a multi-parameter imaging technology, and belongs to the technical field of mine structure detection. The method comprises the following steps: S1, a laser scanning mode is used to scan and model the inner side of a mine tunnel, and an inner surface model of the mine is obtained; S2, the mine is divided into a plurality of groups, each group comprising sequentially arranged detection sections and prediction sections; S3, a collection device is arranged in the detection sections, and sound logging curves and density logging curves of the detection sections are obtained; S4, a geological model of the detection sections is constructed according to the information collected in step S3; S5, the prediction sections are sampled according to the geological models of adjacent detection sections, and the geological model is completed; and S6, a mine structure model is obtained according to the geological models of the detection sections and the prediction sections. According to the method, the inner surface model of the mine is established by the surface scanning mode, the inner surface model of the mine is filled correspondingly, and finally, the mine structure model is formed, and the parameter quantization of the mine model is realized.

This invention discloses a method and system for path planning in 3D surface printing. The method includes: surface scanning, using a 3D laser scanner to scan the target surface; point cloud data preprocessing, preprocessing and optimizing the original point cloud data; model design, designing the model of the product to be printed and exporting it as point cloud data as the base point cloud data for registration; surface mapping, registering the base point cloud data of the model to be printed with the target point cloud data of the scanned surface model, mapping the planar model onto the surface; Z-axis coordinate change calculation, calculating the change of the Z-axis coordinate with the surface height during printing on the surface; and path planning, performing path planning processing on the point cloud data obtained after surface mapping, sorting the coordinates according to priority based on the required path to obtain the coordinates of each point on the complete printing path. This invention can improve the accuracy and detail of 3D printing.

The application provides a height map generation method and device based on galvanometer scanning and top camera cooperation, a storage medium and computer equipment. The method comprises the following steps: controlling a galvanometer to scan a preset structured light pattern on a workpiece surface at a preset power; the preset power is less than a laser processing power; the structured light pattern is a grid pattern or a phase shift fringe pattern; controlling a top camera to collect a deformation image formed by the structured light pattern on the workpiece surface; obtaining pre-stored system calibration information; the system calibration information comprises parameters of the top camera, a scanning model of the galvanometer, and a coordinate mapping relationship between the top camera and the galvanometer; based on the deformation image and the system calibration information, using a curved surface inversion algorithm to solve height information of each point on the workpiece surface, and obtaining a height map of the workpiece surface. The application can reuse the existing galvanometer and top camera of a laser processing device to complete curved surface measurement, and quickly and accurately generate a height map.

This invention relates to the field of laser scanning technology, specifically to a multi-view 3D reconstruction method and apparatus based on dual-axis galvanometer scanning. This method selects single-point, single-line, or surface scanning modes according to different measurement requirements and combines multi-view triangulation to obtain corresponding 3D spatial points or 3D point cloud data. This solves the problem of simultaneously handling fixed-point measurement, cross-sectional contour measurement, and large-area topography reconstruction within the same hardware architecture. Without introducing additional structured light projection devices, the existing point laser and dual-axis galvanometer hardware in the laser processing equipment can be reused to obtain 3D information at different levels of points, lines, and surfaces. This enables the laser processing equipment to possess real-time 3D perception, workpiece positioning, focus correction, and topography detection capabilities, significantly improving system integration, measurement flexibility, and the level of intelligence in the processing process.

The present application relates to the technical field of blast furnace smelting, and discloses a method and apparatus for determining the position of a cohesive zone in a blast furnace, a device, and a storage medium. The method comprises: on the basis of a burden-distributing start signal and a burden-distributing end signal for the current burden distribution, performing burden surface scanning to obtain burden surface coordinates and a burden charging rate; determining a first boundary condition on the basis of the burden surface coordinates and blast furnace features, and constructing an initial grid structure; updating the initial grid structure on the basis of the burden surface coordinates and the burden charging rate to obtain a target grid structure; enabling burden in the blast furnace to undergo reaction, when a plurality of burden performance parameters of each grid node in the target grid structure converge, obtaining the distribution of each grid cell in the target grid structure, and generating a temperature field distribution map; and determining the position of a cohesive zone in the blast furnace on the basis of the plurality of burden performance parameters corresponding to each grid node in the target grid structure and the temperature field distribution map. The present application improves the accuracy of determining the position of the cohesive zone, and reflects dynamic changes inside the blast furnace.