1173 results about "Naked eye" patented technology

An ultrasonic inspection robot for a threaded connection structure of a rotor internal cavity includes a main rack, a clamping module, a lifting module, a rotating module, a telescopic module and a probe buffer module. The present invention can be operated in a narrow, long and strongly restricted space, realizes the inspection of the nut that is inaccessible to the naked eye by carrying testing probes realizes the automated measurement function of placement and pressing of the carried probes, the switching between different test points, and all the points to be measured in an axial direction, and the deformation action of the device, realizes the extension and reduction of the axial and radial dimensions of the device, and completes all functions of placing and taking out the whole device. Moreover, the above functions can be realized only through one device.

The invention discloses a naked-eye 3D display optimization method based on real-time eyeball tracking, and particularly relates to the technical field of naked-eye 3D display, and the method comprises the steps: capturing eyeball movement data in real time through a visual angle tracking sensor, and collecting illumination information in combination with an ambient light sensor; depth perception parameters are calculated based on pupil diameter variation and frequency, and a time sequence prediction type dynamic compensation coefficient is generated in combination with eyeball movement acceleration; acquiring an initial fixation point coordinate by using an improved spherical projection mapping model, and performing compensation coefficient correction to obtain a real-time coordinate; and finally, according to the real-time coordinates, dynamically adjusting the refractive index distribution of the nanostructure layer, the rotation angle of the polarizer, the focal length of the optical lens and other optical modulation parameters. The real-time distance is calculated through the binocular parallax algorithm, the depth mapping value is generated by combining the focal length of the camera and the baseline distance, the method can adapt to the illumination change and the user view angle, and the 3D display effect is optimized.

The embodiment of the invention discloses a naked eye three-dimensional interaction method and device and computer equipment. The method comprises the following steps: determining at least one three-dimensional virtual object corresponding to a target preset naked eye three-dimensional interaction scene, and determining an initial display parameter corresponding to the at least one three-dimensional virtual object; controlling the at least one three-dimensional virtual object to perform motion display in the target preset naked-eye three-dimensional interaction scene according to the initial display parameter so as to generate a naked-eye three-dimensional picture corresponding to the at least one three-dimensional virtual object; obtaining interaction feedback information generated when the user interacts with the at least one three-dimensional virtual object according to the naked eye three-dimensional picture; and according to the interaction feedback information, generating an update display parameter corresponding to the at least one three-dimensional virtual object, and based on the update display parameter, controlling the at least one three-dimensional virtual object to perform motion update display in the naked eye three-dimensional picture. Therefore, a user watches and interacts with the three-dimensional virtual object which is movably displayed in the naked-eye three-dimensional picture, the sight distance can be improved and adjusted, and asthenopia can be relieved.

The invention discloses a naked-eye 3D display system based on a light field reconstruction algorithm, particularly relates to the technical field of naked-eye 3D, and comprises a controlled scattering medium light field acquisition environment, scattering feature enhanced light field data analysis, a hierarchical depth optimization engine and dynamic wavefront modulation display control. According to the invention, through the controlled scattering medium environment design, a scattering signal which is regarded as interference in the traditional technology is converted into a depth characteristic carrier, the data acquisition quality in a complex optical environment is obviously improved, richer and more reliable basic data are provided for light field reconstruction, and the data acquisition efficiency is improved. An innovative hierarchical deep optimization engine is combined with a multi-scale confidence evaluation and discontinuous region processing method, so that the problem of edge blur in a shielding boundary and a geometric structure complex scene is effectively solved, and the geometric consistency and detail fidelity of a reconstructed light field are greatly improved.

The invention discloses a naked eye 3D transparent display imaging system, and relates to the technical field of 3D transparent imaging. The method comprises the steps that a multi-scale parallax layer construction module is used for decomposing a multi-scale parallax layer and dividing regional images; the dynamic viewpoint prediction module is used for generating two-eye three-dimensional space coordinates through human eye parameters; the parallax scheduling mapping module is used for performing space mapping according to the binocular three-dimensional space coordinates to generate a target visual angle image; the background compensation module is used for carrying out brightness correction on the target view angle image to obtain a compensated view angle image; the directional light field regulation and control module is used for processing the compensation view angle image and generating directional light field information; and the full-layer fusion module is used for processing directional light field information, eliminating interface artifacts between layers and generating a naked-eye 3D transparent display image. Through multi-scale parallax construction, dynamic viewpoint tracking and multi-layer light field fusion, the visual angle adaptability and image fusion quality of naked eye 3D display are improved, and a transparent three-dimensional imaging effect with high immersion, high consistency and high definition is realized.

The invention relates to an intelligent monitoring system for prevention and control of diseases and insect pests for bean planting, in particular to the field of intelligent monitoring of prevention and control of agricultural diseases and insect pests, and can realize extremely early precise recognition and early warning of diseases and insect pests of bean crops. The weak lesion spectral features and the continuous deterioration trend of the plant can be sensitively captured in a stage which is difficult to perceive by naked eyes, real diseases and environmental interference are effectively distinguished, the system can automatically locate a suspicious lesion area by using a weak supervised learning mechanism and only needing image-level labeling, the dependence on expensive pixel-level labeling data is greatly reduced, and the accuracy of the system is improved. Finally, a high-confidence early warning signal is output through multi-source information collaborative decision, a scientific basis is provided for accurate and green prevention and control, blind pesticide application is effectively avoided, and crop health and yield are guaranteed.

The invention relates to a naked eye 3D binocular image acquisition and real-time processing system based on hardware synchronous triggering, and belongs to the technical field of image processing and three-dimensional display. According to the system, a hardware synchronous triggering mechanism is adopted, a time sequence synchronous control unit is used for sending a synchronous pulse signal to a binocular image sensor, and strict synchronization of left and right viewpoint image acquisition is ensured. The image signal processing unit processes collected original data, the stereo parallax correction module performs epipolar correction, and the sub-pixel interleaving module generates a composite view frame according to grating parameters of the display terminal. The system realizes high-speed data transmission through a double-buffer direct memory access DMA mechanism. The problems of visual tearing and weak stereoscopic impression caused by asynchronous binocular image acquisition in the prior art are solved, nanosecond-level synchronization precision is realized, optical crosstalk is reduced, and smoothness and comfort of stereoscopic display are ensured.

The embodiment of the invention discloses a naked eye three-dimensional image display method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a plurality of three-dimensional virtual sub-objects and initial display parameters corresponding to the plurality of three-dimensional virtual sub-objects in a target naked-eye three-dimensional scene, wherein the plurality of three-dimensional virtual sub-objects have a logic association relationship; displaying initial naked-eye three-dimensional pictures corresponding to the plurality of three-dimensional virtual sub-objects in the naked-eye three-dimensional display screen according to the initial display parameters; generating space display parameters of the plurality of three-dimensional virtual sub-objects according to the logic association relationship; and dynamically adjusting the three-dimensional space positions of at least part of the three-dimensional virtual sub-objects in the plurality of three-dimensional virtual sub-objects according to the space display parameters so as to update the initial naked-eye three-dimensional picture to obtain a target naked-eye three-dimensional picture. In this way, the spatial display parameters are generated through the logic incidence relation to adjust the three-dimensional space position of the three-dimensional virtual sub-object, and simulation stimulation of the human brain in the three-dimensional space can be achieved when the human eyes watch the three-dimensional virtual sub-object.

The invention discloses a method and system for detecting surface defects of a sheet metal part before coating, and the method comprises the following steps: S1, multi-modal data collection: synchronously collecting three-dimensional point cloud data and a hyperspectral image of the surface of the sheet metal part through a laser three-dimensional contourgraph and a hyperspectral camera, and recording environment illumination and temperature parameters at the same time; s2, data preprocessing: performing denoising and smoothing processing on the three-dimensional point cloud, extracting surface contour features, and performing defective pixel repair, waveband selection and reflectivity correction on the hyperspectral image; according to the surface defect detection method and system before coating of the sheet metal part, through multi-modal data acquisition and fusion of the three-dimensional morphology and the hyperspectral features, compared with traditional single visual detection, the surface defects of the sheet metal part can be more comprehensively and accurately recognized, particularly, tiny defects and oxide layer defects which are difficult to distinguish by naked eyes, the recognition rate is remarkably increased, and the detection accuracy is improved. And by adopting the lightweight deep learning model, the detection precision is ensured, and the reasoning speed is improved at the same time.

The invention relates to the technical field of fire early warning, in particular to an early fire early warning system based on AI image recognition, and the system comprises an image collection module which is used for obtaining the video stream data of a monitoring area in real time; an AI image analysis module which is in communication connection with the image acquisition module and is used for receiving the video stream data and carrying out real-time analysis on video frames based on a pre-trained fire identification model so as to extract visual features related to the fire; and the early warning judgment module is in communication connection with the AI image analysis module and is used for receiving an analysis result of the visual features. According to the early fire early warning system and method based on AI image recognition, through video image analysis, the system can recognize weak flame or smoke characteristics at the initial stage of a fire and when naked eyes do not obviously see the characteristics, and the delay problem that a traditional smoke-sensing and temperature-sensing detector needs to wait for physical parameters to be diffused to the detector to be triggered is solved.

The invention discloses an optical fiber bundle end face performance test method, device and equipment. The method comprises the steps of obtaining a target performance test requirement; analyzing the target performance test requirement to generate at least one target test parameter; generating a target test scheme corresponding to the at least one target test parameter, wherein the target test scheme comprises one or more combinations of a light source starting process, a light source brightness adjusting process, a light source position adjusting process, a target test board position adjusting process and a data processing process; and controlling the corresponding light source and / or the target test board according to the target test process, acquiring an end face image of the optical fiber bundle and / or an imaging image of the target test board, and then carrying out data processing to generate a performance test result. According to the invention, various performance detection of the optical fiber bundle can be fully automatically completed, errors caused by naked eye detection are avoided, and meanwhile, the brightness of each light source is adjustable, so that the optical fiber bundle detection device adapts to optical fiber bundles with different lengths and different transmittances.

According to the nucleic acid extraction and detection device and the use method, by forming a plurality of communicating holes and taking a rotary valve as a communicating medium, communication among functional chambers is achieved, then sample transfer is achieved, the whole transfer process is completed in an internally-closed environment, sample pollution is not caused, and the detection efficiency is improved. The rotating cover and the rotating valve rotate synchronously, and the rotating cover is also closed when the rotating valve is closed, so that the sealing performance of the cavity in the uniform mixing and reaction process is ensured, and the stability of a pre-stored reagent and the safety of the reaction process are ensured; the sample transfer step is reduced, the pollution risk is reduced, the whole process is completed only through manual operation without a power supply or other equipment, and the method can be used for household self-inspection or in areas with limited resources or even in extreme environments without power supply.

The embodiment of the invention provides an orthokeratology lens design method, an orthokeratology lens comprises an adaptive arc area, and the method comprises the following steps: S10, acquiring curvature distribution of a cornea adaptive girdle area of naked eyes of a testee, the cornea adaptive girdle area corresponding to the adaptive arc area; s20, establishing a coordinate system by taking the cornea center as an original point or a pole, and obtaining a mapping relation between the curvature of the cornea adaptive annular zone and different angles according to curvature distribution; s30, obtaining the curvature change rate of the cornea adaptive annular zone according to the mapping relation, and determining a curvature change rate threshold value; s40, determining a plurality of annular sectors according to the curvature change rate of the cornea adaptive annular zone and a curvature change rate threshold value; and S50, determining curvature distribution of an area corresponding to the annular sector in an adaptive arc area of the orthokeratology lens according to the curvature distribution of the annular sector. The fitting degree and the shaping effect of the corneal contact lens and the cornea are improved, the correction effect is improved, and the lens wearing stability can be improved.

The invention discloses an accurate monitoring system for linear deformation of a loess tunnel portal side upward slope, and relates to the technical field of geotechnical engineering and surveying and mapping. The system comprises a sensing network layer, a data acquisition and transmission layer, a cloud platform and data analysis layer and an application display layer, displacement data of discrete monitoring points are reconstructed into continuous full-field displacement and strain distribution through Kriging interpolation, then a displacement vector field is regarded as a whole to be analyzed, the maximum shear strain field of the displacement vector field is calculated, an abnormal area with the deformation gradient abrupt change is accurately positioned, and the deformation gradient abrupt change accuracy is improved. The abnormal point sets are merged into independent clusters according to spatial proximity and deformation consistency, and the geometric trajectory of a potential slip crack surface or crack is accurately outlined through curve fitting, so that the technical path fundamentally changes the limitation of point-mode monitoring, and can automatically identify a hidden linear failure trend which is difficult to find by naked eyes in a non-contact manner, so as to improve the detection accuracy of the hidden linear failure trend. And refined data support is provided for slope stability evaluation.

The invention relates to the cross technical field of biomedical engineering and psychotherapy, in particular to an automatic control system for classified exposure therapy of phobia based on naked eye 3D. The system comprises an electroencephalogram signal feature extraction module, a heart rate variability feature extraction module, a skin electric response feature extraction module, an eye movement feature extraction module, a physiological load state feature extraction module, an exposure therapy process feature extraction module, a first feature fusion module, a second feature fusion module and a stimulation parameter adaptive control module. The method combines multi-mode biological signal real-time analysis and naked eye 3D stimulation parameter self-adaptive adjustment, and is suitable for clinical psychological treatment mechanisms and psychological health intervention scenes.

The invention discloses a radiotherapy laser positioning system and method, the system comprises at least three laser lamp systems, corresponding optical cameras and a computer control system, the laser lamp systems form cross cursors through two linear emitters installed in a T shape, the cross cursors are respectively arranged on the left side, the right side and the upper side of a treatment device, and a three-dimensional space positioning coordinate system is constructed. The optical camera automatically collects images of the body surface mark points of the patient and the laser cursor, and the computer control system carries out image processing, feature extraction and three-dimensional deviation calculation and feeds back deviation information to the treatment bed or the laser lamp system; and the electric control system drives the fine adjustment mechanism to perform three-degree-of-freedom accurate adjustment of translation, rotation and inclination until the mark point coincides with the cursor. According to the invention, optical automatic identification is adopted to replace manual naked eye positioning, personal errors are eliminated, rapid and automatic correction is realized, and the accuracy and efficiency of radiotherapy positioning are significantly improved.

The utility model discloses a sealing ring visual inspection device which comprises a base, and a power supply module, a control detection module, a fixed module and a mobile detection module are installed on the base. The power supply module is used for providing power; the control detection module is electrically connected with the power supply module; the fixing module is used for placing the product and fixing the product; the mobile detection module is electrically connected with the control detection module, the mobile detection module comprises symmetrically arranged sliding tables, a mobile seat is slidably mounted on the sliding tables, a sliding rail is arranged on the mobile seat, a sliding seat is slidably connected to the sliding rail, a fixing frame is arranged on the sliding seat, an extension part is arranged on the fixing frame, and a visual detection lens and an annular detection light source are mounted on the extension part; according to the visual detection device, manual detection with naked eyes is not needed, errors and fatigue possibly caused by manual detection are effectively avoided, and the detection efficiency and accuracy are greatly improved.

The invention discloses a rain and sewage pipeline defect detection method and system based on distributed optical fibers. The method comprises the following steps: 1, laying sensing optical fibers in a pipeline; 2, calibrating an excitation position; 3, collecting and demodulating optical fiber vibration data; 4, performing defect identification and defect positioning on data processed by an intelligent algorithm; vibration signals are sent out through the excitation device, signal collection is carried out in combination with the distributed optical fiber sensing module, efficient recognition and accurate positioning of pipeline defects are achieved in cooperation with an intelligent detection algorithm, and hidden diseases which cannot be perceived by naked eyes can be recognized. By means of an intelligent defect recognition algorithm, signals collected by the optical fiber sensing module are deeply analyzed, the positions and the disease degrees of the defects in the pipeline can be automatically judged, dependence on manual image interpretation is avoided, and automation and intelligentization of pipeline defect detection are achieved. The system has the advantages of being high in adaptability, wide in coverage range, efficient, accurate, high in intelligent processing capacity, low in cost, high in efficiency and the like.

The invention discloses a three-dimensional light field content construction and editing method, which relates to the field of naked eye three-dimensional display, and comprises the following steps of: collecting multi-view images of a real scene through a camera, and constructing a unified three-dimensional space coordinate system; generating an initial three-dimensional scene model; performing adjustable content editing on each frame of multi-view image; updating the initial three-dimensional scene model through the edited image; the updated three-dimensional scene model is rendered through a shear type rendering method, and an image sequence with multi-view consistency is generated; and coding the generated image sequence into three-dimensional light field content by using a light field coding algorithm. According to the method, the real static scene can be efficiently converted into the three-dimensional light field content with a complete structure and a continuous visual angle through multi-visual-angle image acquisition, three-dimensional reconstruction and rendering processing, so that the method has stronger sense of space depth and reality, and the visual experience and the display effect of the three-dimensional light field content are remarkably improved.

The invention discloses a visual effect optimization method and system based on naked eye 3D data, and belongs to the technical field of industrial visual intelligence, and the method comprises the following steps: carrying out the down-sampling of an image, screening a candidate adjustment frame, determining a global interpolation smooth adjustment strategy through a global viewpoint difference index, carrying out the detection of a local region edge dislocation index after the adjustment, and carrying out the detection of a visual effect. According to the visual effect optimization method based on the naked eye 3D data provided by the invention, global adjustment and local adjustment are combined, and wrong adjustment and incomplete adjustment are avoided; the amplitude limit ensures that the picture is free from jumping, dislocation and sudden change and is always coherent and clear; finally, the rendering quality of the dynamic image sequence can be improved, resource consumption can be reduced through computing power optimization, smooth and comfortable visual experience is provided for a user, and meanwhile high scene adaptability and long-term operation stability are achieved.

The invention provides a color stripe removing method and device and a display device.The method comprises the steps that a viewpoint mapping graph of a display panel is obtained, the viewpoint mapping graph comprises the corresponding relation between pixels and viewpoints of the display panel, and the pixels comprise multiple sub-pixels; according to the viewpoint mapping graph, determining the number and the arrangement sequence of sub-pixels corresponding to the first viewpoint in the first viewpoint period; and according to the number and the arrangement sequence of the sub-pixels corresponding to the first viewpoint in the first viewpoint period, adjusting the gray-scale values of the sub-pixels in the first viewpoint period so as to control the brightness of the sub-pixels in the first viewpoint period. By means of the method, color stripes appearing when the display device displays in a naked eye mode can be reduced or even eliminated, and therefore the naked eye display effect of the display device is improved.

The invention relates to an optically variable security element (12) for securing valuables (10), having a reflective surface area (14) containing a plurality of reflective pixel elements (20) which together produce an optically variable motif representation, the appearance of which changes when the security element is tilted along a first direction (16) in the plane of the reflective surface area.According to the invention, it is provided that the pixel elements (20) along the first direction (16) each have an inclination to the reflective surface region (14) which is constant except for any isolated discontinuities, that the pixel elements (20) along a second direction (18) perpendicular to the first direction in the plane of the reflective surface region each have an inclination to the reflective surface region (14), which inclination varies in the entire surface region (14) or in two or more partial surface regions (52, 54; 60, 62, 64) visible to the naked eye, in each case except for any isolated discontinuities, within a predetermined inclination range, whereby the optically variable motif representation appears with a substantially uniform brightness in the entire surface region or in the said partial surface regions when tilted along the second direction (18).

The invention constructs a universal visual virus molecularly imprinted sensor modified with an anti-protein coating, the sensor uses magnetic Fe3O4 as an imprinting carrier, HBV as a template and dopamine as a functional monomer for imprinting to obtain a molecularly imprinted polymer with a polydopamine coating (PDA), and before the template is removed, the molecular imprinting polymer with the polydopamine coating (PDA) is separated from the template, so that the molecular imprinting polymer with the polydopamine coating (PDA) is obtained. The surface of the PDA layer is covered with a slightly cross-linked PMEO2MA layer through a water precipitation polymerization method, and the polymer can effectively reduce non-specific protein adsorption; and finally, exposing an imprinting cavity of the PDA layer by eluting the template molecules. On the other hand, potassium permanganate (KMnO4) is used as a signal output molecule, and when no target object exists, the strong reducibility of PDA can enable KMnO4 entering the imprinting cavity to be subjected to a color fading reaction. Based on the principle, high-specificity colorimetric visual detection on the HBV is realized. The sensor can be combined with a smart phone through naked eyes to carry out visual semi-quantitative analysis and carry out quantitative detection through ultraviolet rays, and the universality of the sensor can be confirmed through a template replacement experiment. And meanwhile, the sensor shows an excellent cost advantage. The diagnosis which is high in sensitivity, low in cost and capable of achieving rapid visualization shows huge potential in practical application, and particularly has important application value in infectious disease screening and monitoring work in areas with limited resources.

The invention discloses a stereoscopic vision optimization method and system for a naked-eye 3D large screen, and particularly relates to the technical field of naked-eye 3D vision optimizing.The method comprises the steps that environment illumination and audience positions are sensed in real time through multi-sensor fusion, and an environment light field model is established; glare crosstalk noise is predicted based on physical simulation, and self-adaptive suppression and compensation are carried out in combination with human eye visual sensitivity and image content features; a virtual camera is dynamically generated according to the real-time positions of the eyes of the audience, and a lightweight neural radiation field renderer is used for real-time re-rendering, so that motion parallax is realized; and finally, intelligently fusing the glare compensation layer and the perspective correction layer, coding and outputting to a screen. The system correspondingly comprises an environment perception module, a glare compensation module, a perspective rendering module and a fusion coding module. The naked-eye 3D large-screen display method effectively inhibits ambient light interference, improves the quality and immersion of a stereoscopic picture under different visual angles, and is suitable for naked-eye 3D large-screen display under outdoor and complex illumination environments.

The invention relates to an ultraviolet-visible-infrared tri-spectral image adaptive fusion method, which comprises the following steps: acquiring a tri-spectral image of high-voltage equipment as an original image, and preprocessing to obtain a preprocessed image; constructing a feature extraction calculation network to obtain feature vectors of the three-spectrum image; calculating the contribution weight of each image in the fusion result; and carrying out multi-scale weighted fusion on the three-spectrum image, and carrying out post-processing on the final fused image. According to the method, the information integrity and accuracy are remarkably improved, the characteristics of a target under different spectrums can be obtained, the problem that information of a single spectrum is one-sided is solved, and tiny flaws which are difficult to distinguish by naked eyes and are fuzzy in thermal imaging can be accurately positioned in industrial defect detection; the imaging of the visible light spectrum is limited in a severe environment, and the ultraviolet and infrared spectrums can still work in low-light, smog, haze and other scenes; after fusion, the system can stably acquire images in a complex environment.

The invention relates to the technical field of nucleic acid on-site rapid visual detection, in particular to a one-pot rapid nucleic acid detection system based on an SfaTnpB combined isothermal amplification technology and application of the one-pot rapid nucleic acid detection system. According to the invention, an RAA isothermal amplification technology and an LAMP isothermal amplification technology are respectively combined with SfaTnpB nuclease, and finally, an RAA-SfaTnpB one-pot method system and an LAMP-SfaTnpB one-pot method system are successfully established. The one-pot system established by the invention has the advantages of high sensitivity, high specificity, fast reaction, strong accuracy and no need of complex equipment, the detection result can be visually interpreted by naked eyes, the system has high convenience and practicability, the adaptability and practicability of the system are further improved, and the rapid detection requirements in various scenes can be flexibly met. The system has a wide application prospect in the fields of rapid pathogen detection, genotype detection, early diagnosis of infectious diseases and the like.

The invention discloses a lateral flow chromatography test strip for detecting perfluorooctanoic acid by combining gold nanoparticles, a nucleic acid aptamer and an antibody. According to the test strip, a nucleic acid aptamer marked by gold nanoparticles is combined with PFOA molecules to form a nucleic acid aptamer with a G-quadruplex structure, and then the nucleic acid aptamer with the G-quadruplex structure is specifically recognized and captured by an anti-BG4 antibody, so that specific visual detection of perfluorooctanoic acid is realized. After a sample is injected, a G-quadruplex structure formed by the PFOA and the nucleic acid aptamer acts with the anti-BG4 antibody coated on the test strip, so that the gold nanoparticles are agglomerated to generate a chromogenic reaction, the signal intensity can be detected by naked eyes or reading equipment, the visual detection limit is 10 mu M, and the equipment detection limit is 304 nM. The test strip has the advantages of high detection speed, high specificity and high sensitivity, and is suitable for field detection and rapid screening. Compared with a traditional method, the method realizes simple, convenient and economical detection of PFOA, and has a wide application prospect.

The invention discloses a method for a substrate management controller to acquire and record hard disk positions and electronic equipment, and relates to the technical field of servers, and the method comprises the following steps: acquiring a hard disk logic view from a disk array card by establishing an out-of-band communication session, traversing each hard disk in sequence after ensuring that all hard disk positioning lamps are turned off, a mapping relation table of a hard disk logic identifier and physical slot position information is accurately established and persistently stored through an automatic closed-loop process of lighting on, querying a hard disk backboard monitoring module, recording a physical slot position and turning off, manual plugging and naked eye recognition are replaced, and automatic discovery and recording of the physical position of the hard disk are achieved; and slot position information is directly obtained through the hard disk backboard monitoring module, so that the accuracy of the corresponding relationship between logic and physical positions is ensured.

The invention relates to a Mini-LED display submodule and a large-size naked-eye 3D display device. The Mini-LED display submodule comprises a display panel, a first grating layer and a second grating layer which are arranged in sequence. The display panel comprises a plurality of pixel units, the first grating layer comprises a plurality of first lenses, and the first lenses are used for converting emergent light rays emitted by the corresponding pixel units into collimated light rays; the focal points of the multiple first lenses are arranged in a coplanar mode, light rays passing through the first lenses can be converted into collimated light rays with unified parameters, the multiple pixel units and the multiple first lenses are arranged in a one-to-one correspondence mode, independent regulation and control of single emergent light rays can be achieved, and the problem of cross crosstalk of different emergent light rays is greatly solved in combination with collimation processing of the first lenses; by arranging the second grating layer, directional refraction can be carried out on the collimated light rays output by different first grating layers, the collimated light rays after refraction are respectively projected to different viewpoint positions in the space, and naked eye 3D display can be realized.

The invention relates to the technical field of nondestructive testing, and discloses a defect simulation device for nondestructive testing and a processing method, a test block matrix is embedded in an embedding groove of a test block base, and a defect processing surface abuts against the groove bottom wall of the embedding groove, so that a simulation defect is formed in the defect simulation device; the test block base body and the test block base are processed by adopting an additive printing technology, and finish machining is performed on the inner wall of the embedded groove and the outer embedded surface, so that the processing precision of the outer embedded surface and the inner wall of the embedded groove is less than 10 microns, the actual fit clearance between the outer embedded surface and the inner wall of the embedded groove is less than 50 microns, and the fit precision invisible to naked eyes is realized; a gap between the contact surfaces of the embedded outer surface and the inner wall of the embedded groove is invisible during ray type perspective detection, so that the influence of processing of a defect simulation device on simulated defects is reduced, the simulation is not deformed in the embedding process of the test block base body and the test block base, the simulated defects are clear and distinguishable during ray type perspective detection, and the detection efficiency is improved. And the authenticity of simulated defects is improved.