408 results about "Laser line" patented technology

The invention provides a steel plate surface defect detection method and system based on multi-source data fusion, and relates to the technical field of steel production automatic detection.The method comprises the steps that water stain pretreatment is conducted on the surface of a steel plate, the residual humidity is reduced to be below a preset low humidity threshold value, and a dry surface is obtained; based on the dry surface, collecting multi-source data through a 3D laser line scanning camera and a 2D industrial line scanning camera which are synchronously triggered, obtaining line scanning laser point cloud data, a line scanning reflectivity gray level image, a line scanning depth gray level image and an area array reflectivity color image, and establishing a space corresponding relation among the multi-source data; and forming a multi-source data set based on the spatial correspondence among the multi-source data. According to the method, a high-precision and high-robustness steel plate surface defect detection system covering the whole detection process is constructed by eliminating water stain interference, unifying a multi-source data reference, optimizing data quality, accurately identifying defects and realizing automatic feedback and data closed loop.

The application discloses a parallel laser line scanning device and a method for measuring crack width and spalling area. The device includes a laser source configured to emit two beams of laser light in parallel to each other to scan a surface; a camera configured to collect an image of the scanned surface, and the camera comprising a lens and an image sensor; a positioning rod; and a controller configured to process an image of scanned surface to obtain a pixel scale of a crack or three-dimensional coordinates of contour points of a spalling, and determine an actual crack width in the scanned surface according to the pixel scale of the crack, or determining an actual spalling area according to the three-dimensional coordinates of the contour points of the spalling. The device facilitates faster and more objective evaluations of building conditions, contributing to improved structural health monitoring and maintenance decision-making.

The invention relates to the field of golf, in particular to a portable multi-eye golf real-time detection and measurement method and equipment and electronic equipment. The method comprises the following steps: carrying out coupling calibration on a laser line direction and a camera coordinate system, and establishing a reference direction of measurement; acquiring a ball position based on the reference direction, judging whether the ball position is within a preset ball hitting range or not, and if yes, adjusting each camera and each auxiliary lighting device to be in a preset first working mode according to the ball position and a preset ball hitting mode; the ball hitting process is monitored, state information at different moments is screened according to a preset comparison rule, multi-view image data associated with state change moments are stored, and the state information comprises club state information, ball state information and environment state information; according to the multi-view image data and a preset image processing algorithm, calculating a three-dimensional space position including a sphere, a ball rod and an environment; and according to the three-dimensional space position and a simulation algorithm, acquiring flight data of the sphere and outputting the flight data.

A fillet weld identification method based on image feature point iterative processing solves the problems of accuracy and robustness of weld identification, and comprises the step of respectively carrying out iterative processing on all fillet weld images with laser lines. The method comprises the following processing steps: carrying out angular point detection on a binary image, obtaining the initial position of an image feature point, segmenting the binary image into a group of regions, setting that each region has only one section of linear laser line, fitting a straight line in each region by using a least square method, and obtaining a linear model of the region; and determining the intersection point of the straight lines in the adjacent areas as a new image feature point, re-segmenting the image by using the new image feature point, carrying out iteration to identify and update the image feature point, terminating iteration when the change of the position of the image feature point is smaller than a specified threshold value, and splicing the welding path welding spots corresponding to all the image feature points into a line according to the image sequence. The method has the beneficial effect that the welding seam position can be identified more accurately. The method can adapt to subtle changes of the welding seam, and the robustness of an identification system is enhanced.

The invention provides an anti-pinch flat thin-walled tube cutting jig, a sawing machine and a method. The jig comprises a clamping seat, a semicircular sleeve and a laser transmitter, the clamping seats are symmetrically and fixedly arranged on a jaw of the bench clamp and are used for assembling the jig on the bench clamp; each semicircular sleeve is of a half-section structure, a semicircular arc-shaped containing cavity is formed in each semicircular sleeve, the arc diameter of each semicircular arc-shaped containing cavity is matched with the outer diameter of a thin-walled pipe to be cut, and when the two semicircular sleeves are folded, the thin-walled pipe is wrapped and clamped, and a cutting gap is reserved; the back of the semicircular sleeve is connected with the clamping seat, and the semicircular sleeve is fixed to the lower portion of the clamping seat in a cantilever mode. The laser transmitter is arranged at the top of the clamping base and used for transmitting cross-shaped laser rays to judge clamping of the thin-walled tube. The semicircular sleeve provides uniform and firm radial support for the thin-walled tube, and huge clamping force of the bench clamp is dispersed to the whole semicircular sleeve, so that plastic deformation and flattening caused by the fact that the clamping force directly acts on the thin-walled tube are avoided, and the technical problem of deformation and flattening during cutting of the thin-walled tube in the prior art is effectively solved.

The invention discloses an automatic welding process combining laser scanning with visual inspection. The process specifically comprises four working procedures of laser scanning before welding, automatic wire feeding, automatic welding and online tracking detection in welding. The specific implementation effects of each process are as follows: the pre-welding laser line scanner scans a weldment by emitting a laser beam to extract three-dimensional information of the weldment, so that a welding route is conveniently planned, and a walking route is fed back to the control cabinet; the control system can receive an instruction to control the driving system to carry out an automatic welding process, so that the welding gun reaches a specified position to carry out automatic welding; in the welding process, the infrared laser tracker dynamically tracks the welding gun, corrects the walking route and guides the compound eye camera to conduct visual inspection so as to judge the welding quality, and the machining targets that components at the welding seam connecting position are uniform, and the welding seam surface is high in quality and low in defect are achieved.

One example provides a laser measurement system comprising an alignment artifact attached to a global reference frame. The alignment artifact has features that define corresponding reference points. A controller is configured to obtain metadata comprising expected locations of the corresponding reference points for the features within a target view during a scan. The controller is also configured to obtain a raw point cloud of the alignment artifact within a scanner reference frame. The controller is further configured to determine scanned features from the raw point cloud, and locations of corresponding scanned reference points to form a set of scanned locations. The controller is also configured to determine a transformation matrix to transform coordinates between the scanner reference frame and the global reference frame based at least upon the set of expected locations, the set of scanned locations, and a common direction vector for a plurality of laser line scanners.

The invention belongs to the technical field of building tools, and discloses a grating type wall brick laser pay-off device which comprises a supporting mechanism, an adjusting mechanism is installed on the supporting mechanism, an optical mechanism is installed on the adjusting mechanism, and the supporting mechanism is used for providing stable support for the whole device and can adjust the height of the optical mechanism. The adjusting mechanism is used for achieving horizontal calibration, vertical calibration and distance calibration with a to-be-constructed wall face on the optical mechanism, and the optical mechanism is used for conducting projection on the to-be-constructed wall face to form clear and straight wall brick laying reference grid lines with the uniform distance. Through the coaxial optical design of the laser, the five-time Galileo beam expanding lens, the DOE grating and the plano-convex lens and the multi-dimensional accurate calibration of the adjusting mechanism, it is ensured that wall tiles, floor tiles and suspended ceilings are accurately crossed and jointed, internal and external corners are straight, and the pain point that traditional paying-off precision is insufficient is solved.

The utility model discloses a kind of belt tearing detection devices, belong to belt detection technical field, a kind of belt tearing detection device, including bottom plate, bottom plate upper end is fixedly connected with adjusting mechanism, adjusting mechanism upper portion is fixedly connected with locating plate, locating plate upper end is fixedly connected with detection mechanism, adjusting mechanism upper portion is fixedly connected with four reinforcing plates, it is through the cooperation of adjusting mechanism and adjusting assembly, the quick fixing of different width and length belt is realized, motor two drive bidirectional screw rod rotation is used, drive both sides positioning roller synchronous movement, can adapt to multiple sizes of belt;Through the cooperation of laser and industry camera, improve detection accuracy and real-time, laser projects laser line on the surface of belt, and the industrial camera captures laser line deformation in real time, when the belt is torn, the laser line form change can be quickly identified, the function of tearing detection can be realized to different sizes of belt, improve the practicability of device.

1. The name of the design product: laser line marker. 2. The use of the design product: used for marking line on target with laser. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view 1.

The application provides a 3D printer and a working method of a laser profiler. The 3D printer is provided with a calibration plate. Before a target object is scanned by the laser profiler, the print head and / or the print bed of the 3D printer can be moved, so that the laser profiler has different distances with the print bed. The camera and the laser emitter of the laser profiler controlled under different distances respectively shoot laser images with laser lines and calibration images without laser lines. Then, based on the calibration images and the laser images under different distances, the laser plane parameters of the laser profiler are calculated, so that the calibration of the laser profiler is realized in the 3D printer. When the calibration parameters of the laser profiler change due to vibration or other reasons, the laser profiler of the 3D printer can be recalibrated, so that the scanning precision of the laser profiler is ensured, and the precision of the 3D printer is ensured.

The application discloses a mobile CT and a laser-guided intraoperative mobile CT positioning and navigation method, and the method comprises the following steps: a laser emitting device projects a laser line on the ground, the relative pose of the mobile CT relative to the laser line is calculated, and the distance of the mobile CT and the steering angular velocity of the chassis are controlled based on the relative pose. The application makes full use of the high brightness and high coherence characteristics of the laser line, effectively reduces the dependence on traditional positioning marks, and significantly reduces the complexity and cost of the system. In addition, the application also specially considers the application requirements in complex medical scenes, and ensures the reliability and accuracy in variable environments. Therefore, the application provides a new and efficient solution for the precise positioning and navigation of the intraoperative mobile CT platform.

The utility model provides an invar bar code leveling staff calibrating device. The calibrating device comprises a measuring workbench, a laser linear measuring assembly, a CCD (Charge Coupled Device) camera and an industrial personal computer, the top surface of a main seat body of the measuring workbench is provided with a long-width movable sliding table capable of transversely sliding, and the top surface of the movable sliding table is provided with a datum line and scale marks; two movable magnetic type clamping supports are arranged on the top face of the movable sliding table along the datum line frame, and the distance between the transverse center tangent planes of the two clamping supports is equal to the distance between two supporting points when the measured leveling staff is supported by a Bezier point. According to the calibrating device, during measurement, the CCD camera is fixed, the leveling staff synchronously moves along with the movable sliding table, smaller metering deviation can be obtained, the magnetic type clamping support with specific design is adopted, various invar bar code leveling staff with different length regulations can be calibrated, higher calibrating efficiency and precision can be provided, and the calibrating device can be used for calibrating the invar bar code leveling staff with different length regulations. And the accuracy and the reliability of the calibration data of the leveling staff are better ensured.

The invention relates to a front sight laser aiming auxiliary device which is used for guiding a kirschner wire to present a point-shaped perspective shadow on a C-arm screen in an orthopedic operation, and belongs to the technical field of medical instruments. The device aims at solving the problems that in traditional Kirschner wire perspective point forming operation, repeated perspective depends on the experience of an operator, radiation exposure is large, and operation precision is difficult to guarantee. The device mainly comprises a front sight base which can be fixed on the surface of a receiver of the C-arm machine, wherein a ball head base is arranged in the center of the front sight base; and the ball head laser indicator is arranged on the base and is adjustable in laser direction. When in use, the perspective image is adjusted to the central position of the front sight on the screen by moving the metal point on the operating table. Installing a laser lamp, adjusting the laser lamp to irradiate on a metal point on an operating table, and screwing a nut to fix the position of the laser lamp at the moment. Therefore, a visible laser guide line coinciding with the path of the target X-ray beam is established. And an operator only needs to adjust the guide needle along the laser ray and place the guide needle, so that the guide needle can be stably developed in a point shape in a perspective image, and accurate and rapid screw guide needle placement is realized. The device is simple in structure, low in cost, intuitive in operation, capable of remarkably reducing intraoperative radiation and reducing dependence on experience of operators, and suitable for being used in hospitals of all levels to carry out precise orthopedic surgery under perspective guidance.

The application relates to the field of sintering machine trolley fault detection, and provides a sintering machine trolley operation fence failure detection method and system. A line structure light device is arranged at the waist line of the fence, and is connected with a computer to control the line laser generator to emit a laser line to form a light stripe on the fence. The camera is controlled to collect the data of the light stripe, the data of the light stripe is transmitted to the computer to generate fence scanning data. A world coordinate system is established with the vertical and horizontal ground direction as the X axis, the vertical fence direction as the Y axis, and the movement direction of the trolley as the Z axis to generate a point cloud model of the fence outer side contour. Whether the fence has an angle defect, inclination or a gap between adjacent fences is judged according to the point cloud model of the fence outer side contour. The fence angle defect, inclination or gap between adjacent fences can be detected, the detection result is not interfered by the fence outer side reinforcing rib, and the detection result is accurate and timely.

This invention relates to the field of laser positioning drilling, particularly a laser positioning cable bracket drilling device, comprising a main frame; two drilling machine mounting frames, both mounted on the main frame; two drilling machines, each mounted on a separate mounting frame; and four horizontal light emitters, with two emitters symmetrically mounted on each mounting frame. The laser lines emitted by the two emitters on the same mounting frame overlap to form a single laser line, and the laser lines emitted by the emitters on the two mounting frames are parallel. The two drilling machines can operate side-by-side simultaneously, with the two laser lines passing through the centers of the two drilling positions. This invention enables efficient positioning drilling.

The present application relates to a kind of conveyor material flow deviation detection and rectification automation system, comprising: laser line transmitter, for emitting laser line on material flow and conveyor, form material flow and the laser line of conveyor upper surface profile;Camera device, for real-time shooting laser line image;Control unit, for extracting material flow and conveyor profile data from laser line image, then extract material flow endpoint and barycenter and carry out material flow deviation detection;Also for when material flow occurs deviation, control corresponding motor of electric push rod work;Two by motor-driven electric push rod, electric push rod drive end is connected with corresponding baffle, to drive baffle movement;And two baffles, respectively set in the left and right sides of the lower end of drop port, to swing left and right under the drive of corresponding electric push rod, then adjust the drop position of material on conveyor, realize material flow deviation rectification.The system is highly automated, can automatically, efficiently and accurately detect material flow deviation and rectification.

The utility model relates to the technical field of measurement of suspension mechanisms or damping mechanisms, and discloses an intelligent rail air spring height detection device, which comprises a host and a reflecting plate, the host is detachably connected to one end of an air spring, the reflecting plate is detachably connected to the other end of the air spring, the host can emit ultrasonic waves and / or laser, the ultrasonic waves and / or laser are reflected by the reflecting plate, and the height of the air spring is detected. And the host receives. In this way, the height of the air spring can be measured. During measurement, only the host and the reflecting plate need to be fixed on the upper and lower end faces of the air spring, a laser ray and / or ultrasonic measurement mode is adopted, operation is simple, and measurement precision is high. The problems that in the prior art, due to the fact that simple tools such as a tape measure are manually used for measurement, operation difficulty is large, measurement precision and efficiency cannot be guaranteed, multiple times of measurement are needed for averaging in the measurement process, operation is tedious, a large amount of time is consumed, manual measurement is greatly influenced by human factors, precision is unstable, and the requirement for high precision is difficult to meet are solved.

The application relates to the technical field of precision measuring instruments, and particularly discloses a multi-axis laser leveler automatic leveling system for decoration construction, which adopts an intelligent leveling mechanism based on a magneto-rheological fluid in view of the deficiencies of traditional leveling methods in speed, precision and environmental adaptability; through modules such as unconstrained posture platform generation, real-time horizontal signal acquisition, non-uniform guide magnetic field generation and rigid support structure formation, fast switching from coarse adjustment to fine adjustment is realized; and through the phase change of the magneto-rheological fluid between the liquid state and the semi-solid state, large-range passive self-leveling is realized through gravity potential energy, high-precision active leveling is realized through the non-uniform magnetic field guidance, finally, a rigid integrated support structure is formed to isolate vibration, and a high-stability reference laser line is projected; the application significantly improves the leveling efficiency and the anti-interference capability, reduces the manufacturing cost, and is suitable for high-precision positioning and leveling requirements in complex construction environments.

Embodiments of the present application provide a field of view angle range correction method, computer equipment and a storage medium. The method comprises: obtaining a target point cloud; determining a target inter-plate distance based on the target point cloud; obtaining a second point cloud set, determining a candidate inter-plate distance based on each frame of point cloud in the second point cloud set; and determining a target driving parameter based on the candidate inter-plate distance and the target inter-plate distance. The target point cloud obtained by the embodiments of the present application suppresses the point cloud distortion caused by the wide-angle lens, which is conducive to obtaining a reliable and accurate target inter-plate distance. The target inter-plate distance is used as a quantitative target for adjusting the driving parameter, and the driving parameter is constantly adjusted to obtain a target driving parameter that can make the candidate inter-plate distance consistent with the target inter-plate distance. The laser radar can drive the galvanometer to scan through the wide-angle lens at the target field of view angle range based on the target driving parameter. Therefore, the embodiments of the present application can help the laser radar to accurately and reliably output the laser line corresponding to the target field of view angle range.

This utility model discloses a portable positioning and calibration device for photovoltaic array construction, including a laser positioning instrument. An adjustment mechanism is provided on the back of the laser positioning instrument; the adjustment mechanism includes a slide rail, a slider, a clamping plate, and an adjustment rod; the slide rail is located on the back of the laser positioning instrument, and a slider is slidably connected to the inner wall of the slide rail. This utility model relates to the field of photovoltaic installation technology. This portable positioning and calibration device for photovoltaic array construction enables the adjustment of the position of the laser emitter, ensuring that the "reference point" for positioning and calibration completely coincides with the "design origin" of the photovoltaic system. This ensures the reliability of the laser line from the source, avoiding cumulative errors caused by eccentricity, simplifying the calibration logic during construction, and allowing subsequent component installation to "meet the standard by aligning with the line," ultimately improving the installation accuracy and construction efficiency of the photovoltaic array, while providing a unified reference for later system operation and maintenance.

The invention belongs to the technical field of laser demarcation devices, and relates to precision improvement of laser demarcation devices, in particular to a shell material used for a laser demarcation device. An antistatic agent is added into the shell, and the addition amount of the antistatic agent enables the electrostatic voltage of the shell to be always kept within 300V under the environment that the temperature is-20 DEG C to 40 DEG C and the humidity is 30%-65%. Through multiple verification, when the static voltage of the shell does not exceed 300V, the influence on the precision of the laser demarcation device can be greatly reduced or even completely solved.

The invention relates to a method for detecting the plugging quality of an FPC flat cable connector, and the method comprises the following steps: S1, enabling an upper computer to control a backlight source to be turned off, enabling a to-be-detected product to be in a dark environment, enabling a laser line light source at the left side to be turned on, and enabling line laser generated by the laser line light source to form two bright line patterns on a flat cable connector and a flat cable buckle of the to-be-detected product; s2, the upper computer controls the camera to photograph and obtain an image, and converts the image into a grey-scale map; and S3, if the two bright lines are in a vertical parallel state, the flat cable buckle is buckled in place, and if the bright lines on the flat cable plug connector are in a vertical state and the bright lines on the flat cable buckle are in an inclined state, the flat cable buckle is not buckled in place. By the adoption of the technical scheme, according to the method and system for detecting the plugging quality of the FPC flat cable connector, after the FPC flat cable connector is assembled, detection is carried out in an optical + 2D visual detection mode, and the problems existing in the prior art can be effectively avoided.

The present disclosure relates to a shield tail end gap measurement method, device and equipment, comprising: projecting a plurality of first laser lines at the end of the shield segment and the shield tail end gap through a grating module laser, and projecting a second laser line perpendicular to the first laser lines through a linear laser; collecting a shield segment end image through an industrial camera, and obtaining a segment end image; in the segment end image, constructing an arc shield wall curve according to the second laser line and the laser lines parallel to each other in each first laser line; in the segment end image, determining the upper vertex and the lower vertex of the shield tail end gap according to the arc shield wall curve and the laser lines distorted and not parallel to each other in each first laser line; and determining the shield tail end gap according to the second laser line, the upper vertex, the lower vertex and the actual distance from the linear laser to the arc shield wall of the shield segment, thereby improving the accuracy of shield tail end gap measurement.

The application provides a steel plate shape measurement calibration method, belongs to the field of three-dimensional shape measurement and calibration, and aims to realize three-dimensional reconstruction and shape measurement of a steel plate surface. In order to realize high-precision detection of the plate shape, the application obtains X, Y and Z coordinate data of the steel plate surface through a double-line laser measurement system. The measurement system is composed of multiple cameras and two line lasers, the installation positions of the cameras are determined to ensure that the cameras have a certain overlapping field of view, so that the data can be spliced. In the measurement process, the image captured by the camera is processed, the position information of the laser line in the image is extracted, the pixel coordinates are converted into actual world coordinates according to the calibration parameters and the working distance of the camera, and the X, Y and Z three-dimensional coordinate data of the steel plate surface are obtained. Vibration compensation is carried out in the measurement process to ensure the accuracy and stability of the measurement result.

A laser alignment tool for flange fit-up includes tapered centering nuts that seat in flange bolt holes, a mounting bolt to secure the nuts, and a connector rod extending through the nuts. A yoke bracket at the laser end carries a rotatable laser housing with an integrated laser projection system. A manual actuator controls a clamping head that selectively locks the laser housing orientation. Multiple bubble levels on the nuts, rod, and housing provide comprehensive leveling verification. The tool projects a visible laser line across flange surfaces to provide precise visual alignment reference for positioning flanges relative to corresponding components, eliminating inaccuracies of manual alignment techniques while enabling single-operator use with 360-degree rotational adjustment capability for complex angular alignments in oil and gas applications.

1. The name of the design product: laser line instrument (A8857). 2. The use of the design product: applied to decoration, construction, pipeline installation and other industries. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective drawing.

The application discloses a frequency modulation rate variable laser linear frequency modulation device and a frequency modulation method thereof. The device comprises a wideband tunable laser, a micro-optical lens, a beam splitter, an adjustable optical delay unbalanced MZ interferometer, a balanced photodetector, a phase discriminator, a loop filter, an up / down switch control circuit and an integrator. The adjustable optical delay unbalanced MZ interferometer comprises two couplers and an adjustable optical fiber delay line unit. According to the relationship between the linear frequency modulation light frequency and time of the upper and lower arms of the interferometer, when the delay amount of the adjustable optical fiber delay line unit changes, the frequency modulation rate of the output laser can be changed. The application changes the time delay of the light by using the adjustable optical fiber delay line, so that the frequency modulation rate can be changed.

The application provides a mobile phone shell assembly defect detection method and system, which is applied to the technical field of machine vision detection, global contour features and laser line local deformation features are synchronously extracted in a single image acquisition period, and a pose is calculated based on the global contour features to determine a dynamic detection area, thereby solving the problems of unstable image quality, pose uncertainty and processing time exceeding the limit in the prior art, and the method has the advantages of improving detection efficiency, adapting to the beat of a high-speed production line, and being capable of coping with the pose uncertainty of a mobile phone to be detected.

The application discloses a pile driver intelligent guiding device arranged on the surface of a machine body and comprising a vertical guiding mechanism, the vertical guiding mechanism comprising a frame rod fixedly connected with the machine body, a fixed plate fixedly installed at the end of the frame rod, and a universal joint arranged on the top surface of the fixed plate. The pile driver intelligent guiding device is connected with the fixed plate through the universal joint, and a sliding cylinder-screw rod driving structure is combined to adjust the pitch angle of a laser instrument in real time. When the sliding cylinder slides along the fixed cylinder, the fixed plate is pushed to rotate around the universal joint as the fulcrum, so that the laser line emitted by the laser instrument is always perpendicular to the ground, the high-precision guiding requirement of the vertical implantation of a steel sheet pile is met, the inner wall of the sliding cylinder is provided with an embedded nut and is threadedly connected with a screw rod, the end of the screw rod is limited from being separated from the sliding cylinder through a stop ring, the threaded connection is prevented from being invalid due to vibration or impact, the surface groove of the sliding cylinder is matched with the inner wall protrusion of the fixed cylinder to prevent the rotation of the sliding cylinder and ensure that the sliding direction is always along the axial direction, and the structural reliability is improved.