66 results about "Visual screening" patented technology

The invention discloses microminiature needle body high-speed visual screening equipment and a screening method thereof, and belongs to the technical field of industrial automatic detection and sorting. The equipment comprises an equipment frame, a feeding module, a visual identification module, a grabbing module, a control module and a material receiving module. The feeding module is used for conveying to-be-screened needle bodies. The visual identification module performs image acquisition and model identification on the needle body; the grabbing module is provided with a plurality of grabbing clamping jaws, can move in the horizontal direction and the vertical direction under the driving of the control module, and grabs a plurality of needle bodies of the same model at the same time at a time. The material receiving module comprises a plurality of material receiving boxes and a transposition driving mechanism for driving the material receiving boxes to move so as to align the target material receiving box to the grabbing module. The equipment disclosed by the invention can be widely applied to high-efficiency sorting of micro-miniature needle bodies with the diameters ranging from 0.3 mm to 3mm and the lengths ranging from 3mm to 77mm, has high precision, high speed and high reliability, and is suitable for large-scale production and multi-variety and small-batch production requirements.

The invention discloses corrugated paper conveying equipment based on visual screening. The corrugated paper conveying equipment comprises an equipment frame, and a lifting seat is arranged at one end of the equipment frame in a lifting mode; the first conveyor is arranged in the equipment frame, one end of the first conveyor is rotationally installed in the lifting base, and the other end of the first conveyor is arranged at the end of the equipment frame in a lifting mode; a plurality of industrial cameras are arranged on the top of the first conveyor, unqualified products are found in time, when it is detected that a paperboard has defects and dimensional deviation, a material taking suction cup downwards adsorbs the paperboard and then rapidly lifts the paperboard upwards, the whole screening action is rapid and timely, and the unqualified products are effectively prevented from being mixed into qualified products; after the material taking suction cup lifts the materials, the second conveyor moves to the position below the material taking suction cup to receive and take the materials, the cleaning brush cleans the material taking suction cup during resetting, dust, chippings and other loose sundries can be effectively removed, and the adsorption effect and the service life of the vacuum suction cup are guaranteed.

The utility model discloses a semi-automatic stretching visual screening machine for O-shaped rings, and relates to the technical field of O-shaped ring detection. According to the utility model, through the arrangement of the matching assembly, the O-shaped ring to be detected is placed on the multiple groups of arc-shaped plates, then the limiting block is pressed down, the limitation between the limiting block and the limiting gear is relieved, the driving rod is rotated, the linkage gear is driven to rotate through the transmission belt and the linkage rod, the linkage fluted disc is further driven to rotate, and under the action of the arc-shaped grooves, the O-shaped ring is detected. The sliding shaft slides in the arc-shaped groove and drives the sliding rod to move in the connecting block, so that the sliding rod drives the arc-shaped supporting plate to stretch the O-shaped ring and loosen the limiting block, and under the action of the matched spring, the limiting block returns and is matched with the limiting gear in a buckling manner, so that the driving rod is fixed, and the linkage fluted disc is prevented from rotating; and then the visual detection device detects the stretched O-shaped ring, the structure is simple, the O-shaped ring can be stretched in all directions, and the detection accuracy is improved.

The invention discloses a rubus cochinchinensis efficient genetic transformation method based on RUBY reporter gene and agrobacterium rhizogenes mediation, which realizes that the transformation period is shortened to be within 15 days and the transformation efficiency is improved to be more than 60% through direct explant treatment under a non-tissue culture condition. The method comprises the following specific steps: 1) preparing an explant material; (2) constructing an RUBY carrier and transforming agrobacterium rhizogenes; (3) infecting the explant by utilizing agrobacterium rhizogenes carrying a target gene; (4) co-culturing after infection and carrying out RUBY visual screening; 5) positive root molecular biology verification; (6) inducing positive roots into buds; according to the method, induction of the positive callus, the positive root and the positive bud of the rubus coreanus stem segment under the non-tissue culture condition is successfully achieved, a stable and efficient genetic transformation system is constructed, the method has the remarkable advantages of being easy and convenient to operate, low in cost, wide in applicability, high in reproducibility and the like, and a key technical support is provided for molecular breeding of the rubus coreanus.

1. The name of the design product: visual screening machine. 2. The use of the design product: the design product is used for precise equipment for screening products by using optical image processing technology. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The present application relates to the technical field of visual screening detection, in particular to an optical image screening machine, which comprises a rack and a rotating platform arranged on the rack; a material discharging guide mechanism, a visual detection mechanism, a qualified product discharging mechanism and an NG product removing mechanism are sequentially arranged on the outer side of the rotating platform along the rotating direction of the rotating platform; the qualified product discharging mechanism comprises a discharging channel mounted on the rack, a feeding assembly opposite to the entrance of the discharging channel, and a buffer conveying assembly arranged in the discharging channel; the feeding assembly sends the products that pass the detection to the discharging channel; the buffer conveying assembly comprises a deformation receiving part and a deceleration slide part; the products are flexibly received by the deformation receiving part and then output after the speed is controlled by the deceleration slide part. The technical problem that the products are damaged due to collision after the visual high-speed detection is completed and the qualified product rate is reduced is solved.

The present application relates to the field of ophthalmic apparatus, especially to an eye optometry instrument for visual screening. The eye optometry instrument for visual screening comprises a measuring instrument body, a chin rest, a forehead rest, an adjusting frame, a driving assembly, a cleaning roller and a cleaning barrel, one side of the measuring instrument body is provided with a display for displaying measurement data, the other side of the measuring instrument body is symmetrically provided with a chin rest for supporting the chin of a subject, and the upper side of the chin rest is provided with a forehead rest for abutting against the forehead of the subject. The eye optometry instrument for visual screening provided by the present application realizes instant cleaning of the chin rest and the forehead rest after use through the design of the cleaning roller and the cleaning barrel, and manual cleaning of the chin rest and the forehead rest by the staff is not needed, so that the physical strength and time cost of the staff are greatly reduced, the fatigue of the staff caused by frequent operation is avoided, the work efficiency is improved, the hidden danger of health and safety in the scene of continuous screening by multiple people is solved, and the burden of the staff is reduced.

The application discloses a kind of zero visual seam's liquid crystal display unit, it is related to display technical field.The display unit includes backlight module, liquid crystal panel assembly and optical compensation composite cover plate.Wherein, the edge of backlight module is equipped with the chamfer support surface that is inwards shrinkage, the non-display area of liquid crystal panel assembly is bent or adhered along the chamfer support surface, so that the physical height of non-display area is lower than the plane where effective display area is located.Optical compensation composite cover plate is adhered to the surface of liquid crystal panel assembly and extends to cover above non-display area, and the cover plate sequentially includes light remodeling layer, waveguide light uniform layer and wide-angle scattering layer from bottom to top.The application is cooperated by mechanical structure and micro-nano optics, realizes the visual screening of physical seam under the premise of not increasing electronic control complexity, solves the problems of large assembly thickness, black seam ghost and edge image distortion in traditional seam elimination scheme.

The invention relates to the technical field of food visual inspection, in particular to intelligent equipment for food detection and processing, which comprises a main conveyor and an auxiliary conveyor attached to the main conveyor, the visual screening camera is used for carrying out preliminary visual judgment on batch food; the base is fixedly connected to the auxiliary conveyor through a bracket; the two extrusion mechanisms are arranged on the base; the picking manipulator is fixedly connected to the auxiliary conveyor through a placement frame; an auxiliary mechanism; a control mechanism; and the online camera is used for continuously acquiring response images of the food in the whole process of applying, keeping and cancelling the extrusion excitation. By arranging the extrusion mechanism capable of being precisely regulated and controlled and the high-speed image acquisition system, deformation recovery dynamic and internal optical characteristics of food are recorded in real time while non-destructive physical excitation is applied, and the internal quality is comprehensively judged in combination with an algorithm model, so that high-precision and non-destructive detection of the internal state of the food on a production line is realized; and the defect detection rate is improved.

This invention relates to the field of robotics, and more particularly to a human-computer interaction system and method based on a service intelligent robot. The system includes a visual perception module for acquiring shelf image sequences to identify candidate objects; a visual screening module for performing visual confidence analysis to mark visually credible and untrustworthy targets; an active exploration module for performing vibration-based detection on untrustworthy targets to acquire physical response signals; an exploration analysis module for analyzing vibration features and extracting physical feature parameters to determine attribute feature information; a target determination module for determining the target determination result; and a grasping control module for determining a grasping confirmation command based on the determination result and adjusting baseline feature parameters based on execution feedback. This invention reduces the risk of misgrabbing in visually limited scenarios, improves the robot's accuracy in object discrimination, and enhances interaction reliability.

The utility model relates to the technical field of film storage, in particular to a glass film storage cabinet which comprises a cabinet body, sealing doors are hinged to the two sides of the outer portion of the cabinet body through hinges, a control panel is arranged on the right side of the upper portion of the cabinet body in an embedded mode, and a left storage space and a right storage space which are independent are arranged in the cabinet body. And a plurality of rails are mounted on the left side wall and the right side wall in each storage space. According to the glass film storage box, the containing box with the separation protection bag is arranged in each drawer, a plurality of glass films can be independently stored, the adhesion phenomenon caused by stacked storage is effectively avoided, meanwhile, the friction and scratch risks between the films are reduced, the integrity of the surfaces of the films is ensured, and in addition, the glass film storage box is convenient to use. The placing box can be automatically bounced to be in a vertical state through the torsion spring after the drawer is pulled out, so that the glass films are vertically arranged, the design not only facilitates visual screening of the required films, but also avoids the situation that the surrounding films are disordered, and the storing and taking efficiency is improved.

The invention relates to a payment identity credibility verification protection method, belongs to the field of electric digital data processing, and particularly relates to the field of identity recognition. The method comprises the step of executing intelligent verification of a payment identity by using an intelligent credible verification model according to multiple environment related parameters corresponding to current financial payment, various target associated information of a target person and visual credible verification content. The invention also relates to a payment identity credibility verification protection system. According to the invention, the technical problem that the payment identity credibility verification in the prior art is difficult to meet the increasing multi-aspect requirements of the user at the same time is solved; visual screening data of a payment identity credible verification environment in which current financial payment is located are screened in a targeted manner, and multiple environment related parameters and target associated information corresponding to the current financial payment are combined as assistance, so that intelligent verification of whether a to-be-verified person in front of a financial payment terminal is a target person or not is completed. Therefore, the technical problem is solved.

The utility model relates to a feeding mechanism of an O-shaped ring visual screening machine, which comprises a feeding frame, one side of the feeding frame is connected with a first conveying belt, the feeding frame is connected with an inclined second conveying belt, the feeding end of the second conveying belt is in butt joint with the discharging end of the first conveying belt, and the other side of the feeding frame is connected with a third conveying belt. The feeding end of the third conveying belt is in butt joint with the discharging end of the second conveying belt, the third conveying belt and the first conveying belt are oppositely arranged in parallel, an overlapping area is arranged between the third conveying belt and the first conveying belt, and butt-joint guide plates are connected between the third conveying belt and the first conveying belt located in the overlapping area. An anti-stacking assembly, a guide assembly and a feeding motor assembly are sequentially connected to the side edge of the third conveying belt from left to right, the anti-stacking assembly and the guide assembly are spaced and both located in the overlapping area, and the feeding motor assembly is located at the tail end of the third conveying belt. The feeding device can improve the working efficiency of feeding.

Described herein is a visual screening device for performing a visual screening test on a patient to determine the presence or absence of a disease and / or abnormality in an eye of the patient.SOLUTION: The visual screening device may include associated methods and systems configured to perform the operations of the visual screening test. The apparatus may include a radiation source configured to generate near infrared (NIR) radiation, a sensor configured to capture a grayscale image representative of the radiation reflected by the patient's eye, a white light source, and a camera configured to capture a color image of the patient's eye. The apparatus may also be configured to generate a composite image based on the grayscale image and / or the color image, determine a difference between an eye-related value and an expected value, and generate an output indicative of an eye-related condition based on the difference.SELECTED DRAWING: Figure 1

The invention relates to the technical field of visual screening detection, in particular to a visual labeling machine which comprises a rack, a conveying device erected on the rack, a visual camera A arranged in the rack and with the sight line right facing the conveying device, a display screen arranged on the outer side of the rack and used for real-time display, a label supply mechanism and a label pasting mechanism. The label sticking mechanism is used for sticking the product positioned and determined by the visual camera A on the conveying device after obtaining the label from the label supply mechanism; the label pasting mechanism comprises an adsorption assembly and a smoothing assembly, the smoothing assembly is matched with the adsorption assembly to adsorb and obtain the label together, the height difference is formed between the adsorption assembly and the smoothing assembly, and the label is pasted after being at an acute angle relative to the product and is smoothed by the smoothing assembly so that the label can be attached to the upper surface of the product. The technical problems that a transferred label falls off, pasting is not firm, and the label cannot be pasted to the surface of a bevel part are solved.

The invention relates to the technical field of semiconductor packaging equipment, and discloses a four-vibration-disc and four-funnel stock bin feeding die bonder which comprises a machine body and four vibration discs, four XY-axis manual moving tables are arranged on the table top of the machine body, a bearing table is fixedly connected to a moving plate of each XY-axis manual moving table, and a feeding mechanism is arranged on the bearing table. The four vibration discs are installed at the tops of the four bearing tables respectively, every two adjacent vibration discs are in axial symmetry, feeding rails are arranged at the tops of the bearing tables, and the feeding ends of the feeding rails are connected with the discharging ends of the vibration discs; the top of the bearing table is provided with a detection assembly and a material supplementing assembly. According to the invention, parallel feeding of four vibration discs is combined with visual screening, the production efficiency and productivity are improved, the design of bulk material direct connection die bonding is adopted, the technological process is simplified, the cost is reduced, the vibration discs are rapidly replaced, the universality of equipment is enhanced, a front-back bidirectional plate feeding mode is adopted, and the flexibility of production line layout and the comprehensive utilization rate of the equipment are improved.

The invention discloses a visual screening device and method and an optometry unit, and relates to the technical field of optometry. Comprising an illumination module, a measurement module, an iris imaging module, a scanning component and a processor. The camera module observes the human eye position, the processor determines the to-be-moved angle of the scanning component according to the human eye position, the illumination module is synchronously started, and a light beam emitted by the light source sequentially passes through the scanning component and the optical splitter and then enters the human eye; the light beam emitted by the secondary light source generated when the light beam enters the human eyes sequentially passes through the optical splitter, the scanning component, the imaging lens in the measuring module and the micro-lens array, and then is imaged by the camera. The processor acquires the image acquired by the camera, and determines the diopter information of the human eyes after analyzing the image, so that the measurement of the diopter of the human eyes is realized; moreover, the processor determines the to-be-moved angle of the scanning component according to the human eye image, and the scanning component scans the preset range again on the basis of the to-be-moved angle, thereby improving the precision and accuracy of diopter measurement.

The invention discloses a probe for screening active ingredients for resisting Alzheimer's disease (AD) and accurately imaging mitochondrial miRNA-34a as well as a preparation method and application of the probe. According to the probe, ZIF-8 serves as a carrier, a mitochondrial targeting probe DMS-TPP locked by an MMP9 enzyme digestion peptide fragment is entrapped, and an erythrocyte membrane (TR) modified by a transferrin receptor aptamer (TfR-A) is adopted for coating, so that a DMS-TPP and ZIF-8 and TR composite structure is formed. According to the invention, primary targeting is realized through TR-mediated long circulation and blood brain barrier penetration; the probe is released through acid degradation of ZIF-8, and mitochondria targeting is guided through TPP, so that secondary positioning is realized; the probe is specifically activated under the action of high-expression MMP9 of an AD focus, a DNAzyme cyclic cleavage reaction is started, and high-signal-to-noise-ratio and high-sensitivity imaging of mitochondrial endogenous miRNA-34a is achieved. The problems that an existing probe is low in delivery efficiency and poor in targeting specificity are solved, and a powerful tool is provided for AD early diagnosis, mechanism research and visual screening of anti-AD drugs (such as olive leaf extracts).

The invention discloses an asphalt mixture microstructure parameter visual screening method and system based on a collinearity quantification technology, and relates to the field of road engineering material structure performance evaluation. The method aims at solving the problems that according to an existing asphalt mixture structure parameter screening method, key mechanism information is lost in a screening result, and consequently the follow-up engineering model is poor in universality and low in calculation efficiency. The method comprises the following steps: obtaining a correlation coefficient between mesostructure parameters of the asphalt mixture; obtaining structure parameter correlation frequencies, and iteratively eliminating the microstructure parameters of the to-be-screened asphalt mixture corresponding to the highest value of the structure parameter correlation frequencies until all the structure parameter correlation frequencies are smaller than a preset frequency threshold; and obtaining a variance expansion factor of the residual to-be-screened asphalt mixture microstructure parameters, and obtaining an asphalt mixture microstructure parameter screening result by using the variance expansion factor of the residual to-be-screened asphalt mixture microstructure parameters.

A system includes a vision screening device having at least one sensor. The system also includes a controller operably connected to the at least one sensor. The controller is configured to cause the at least one sensor to obtain an image of an eye, and to identify a region of interest associated with a macula of the eye. The controller is also configured to identify drusen disposed proximate the macula, and to generate an augmented image of the eye. The augmented image includes a component indicating the drusen.

This invention relates to the field of integrated circuit pin inspection technology and discloses an automated integrated circuit pin inspection robot, including a movable mechanical gripper, an inspection mechanism, a self-maintenance mechanism, and a substrate. The bottom end of the movable mechanical gripper is fixedly connected to one side of the top of the substrate, the inspection mechanism is located on the top of the substrate, and the self-maintenance mechanism is located in the middle of the substrate. In this invention, by integrating high-precision visual inspection and automated electrical testing, multi-dimensional and high-efficiency comprehensive inspection of integrated circuit pins is achieved. The visual inspection camera is fixed in the observation slot of the inspection seat, which can directly observe from the best angle whether the pin is vertical and completely penetrates the slot, and identify physical deformations such as bending and skewing of the pin in real time. At the same time, it can accurately measure whether the pin length meets the standard, and can also detect the oxidation, dirt and other contamination conditions on the pin surface. This visual screening is completed before electrical testing, which can eliminate products with unqualified appearance in advance.

The utility model relates to an O-shaped ring defect detection visual screening machine which comprises a machine frame, a conveying belt mechanism is connected to the machine frame, a feeding mechanism is connected to the conveying belt mechanism, a driving motor is connected to the machine frame, a rotating disc is connected to a driving shaft of the driving motor, and a feeding mechanism is connected to the rotating disc. A discharging port of the conveying belt mechanism is in butt joint with the feeding end of the rotary disc, and the rack is connected with a trigger sensor assembly, a first station camera assembly, a second station camera assembly, a third station camera assembly and a fourth station camera assembly. The trigger sensor assembly, the first station camera assembly, the second station camera assembly, the third station camera assembly and the fourth station camera assembly are sequentially arranged at intervals along the outer ring of the rotating disc anticlockwise, and a discharging box assembly is connected to the rack and located at the rear end of the fourth station camera assembly. According to the utility model, the working efficiency can be improved.

The application relates to the technical field of waste cigarette processing, and discloses a high-speed cigarette machine group waste cigarette tobacco online recovery system, which comprises a vibrating screen, a visual screening device, an arrangement and transmission device and a tobacco separation device arranged in sequence beside the high-speed cigarette machine group; the vibrating screen is used for receiving waste cigarettes and separating the waste cigarettes from sundries; the visual screening device is used for receiving the waste cigarettes transmitted by the vibrating screen and removing non-standard cigarettes in the waste cigarettes; the arrangement and transmission device is used for receiving the arranged waste cigarettes, orderly arranging the waste cigarettes and transmitting the waste cigarettes to the tobacco separation device; and the tobacco separation device is used for separating tobacco in the waste cigarettes. The application can timely and efficiently extract tobacco from waste cigarettes of the high-speed machine group, reduce tobacco crushing, synchronously add the tobacco to the production of the machine, improve the recycling rate of resources and greatly save the cost.

This invention discloses an integrated screening and film packaging machine, belonging to the field of material screening and film packaging technology. It includes a screening box with a brake wheel installed at its lower corner. A screening mechanism is installed inside the screening box, and a film packaging mechanism is slidably connected to the lower interior of the screening box. The screening mechanism includes a DD motor, which is installed at the center of the screening box. A rotating platform is located at the output end of the DD motor. This invention, by setting up a screening mechanism and using a DD motor to drive the rotating platform, ensures uniform material distribution. Combined with a detection camera, it achieves precise visual screening, quickly distinguishing between qualified and unqualified materials, improving screening accuracy and efficiency. The detection camera, equipped with an adjustment component, can flexibly adjust the detection position to adapt to the screening needs of different material specifications, making the screening process more stable and reliable, providing qualified materials for subsequent packaging processes, and ensuring production quality.

The invention relates to the technical field of visual screening equipment, in particular to a flour impurity removing device based on machine vision, which comprises a conveying device, a storage hopper, a tiling device and a plurality of visual removing devices are sequentially arranged on the conveying device, a discharge seat is mounted at the bottom end of the storage hopper, and the tiling device comprises a transverse plate, a movable seat and an adjusting motor. The bottom end of the movable seat is rotationally connected with a rotating column, and a tiled edge strip is arranged on the peripheral surface of the rotating column. According to the flour impurity removing device based on machine vision, through a special tiling structure, the tiling thickness of flour can be actively adjusted and kept stable, and the situation that impurity recognition is affected due to uneven thickness is avoided. Specifically, the tiling structure can control the thickness range of the tiled flour through mechanical adjustment, no matter whether the falling amount of the flour fluctuates or not, the flour can be distributed on the conveying structure with the uniform thickness, a clear and uniform shooting basis is provided for a subsequent visual recognition structure, and it is ensured that impurities can be accurately captured.

The invention belongs to the technical field of gene engineering, particularly relates to a rubber tree CRISPR (clustered regularly interspaced short palindromic repeats) transcriptional activation technology, more particularly relates to a rubber tree CRISPR transcriptional activation vector, and further discloses a construction method and application of the rubber tree CRISPR transcriptional activation vector. The hevea brasiliensis CRISPR transcription activation technology is constructed for the first time, dCas9TV is targeted to a hevea brasiliensis endogenous gene promoter region through specific sgRNA, transcription of a downstream target gene is activated, and the hevea brasiliensis anthocyanin synthesis transcription factor gene HbAN2 is further selected as a target gene to verify the technology. Screening and synthesizing a high-efficiency specific target site sequence on an HbAN2 gene promoter, and constructing the high-efficiency specific target site sequence to the downstream of an HbU6.2 promoter of an Hb-dCas9TV vector. The CRISPR transcriptional activation vector of the rubber tree can promote synthesis and accumulation of anthocyanin in a transgenic embryo block to be red, so that efficient visual screening of effective transcriptional activation materials is realized.

The utility model relates to the field of resistor screening, in particular to a multi-azimuth visual screening machine for resistors, which comprises a machine table and a vibrating disc, a rotating disc is rotatably arranged on the machine table, and an infrared sensor, at least two groups of optical detectors with different shooting angles, a plurality of screening boxes and a baffle plate are sequentially arranged on the rotating disc along the rotating direction. The optical detector comprises an adjusting support and two groups of cameras which are oppositely arranged on the adjusting support, an angle adjusting groove is formed in the adjusting support, one end of each camera is rotationally arranged on the adjusting support, and the other end of each camera is rotationally arranged at any angle of the angle adjusting groove through an adjusting piece capable of adjusting tightness; at least two high-speed airflow blowing pipes for blowing resistors into the screening box are arranged at the opening of the screening box, and the material baffle blocks the missed detected resistors into the screening box. The resistor detection device has the beneficial effects of high automation degree, capability of detecting resistors in multiple angles and multiple directions, high detection precision and light supplementing function.

The present application relates to visual detection mechanical equipment technical field, especially relates to a kind of belt composite visual screening machine, including workbench and install on the workbench belt conveying line, first visual screening matrix, second visual screening matrix, pneumatic discharge mechanism, by improving discharge passage to swing adjustment, when blowing out workpiece by air blowing nozzle blowing, discharge passage will receive instruction simultaneously, swing to horizontal state, workpiece is received, since receiving, airflow penetrates discharge passage, and after receiving workpiece in discharge passage, it will quickly change to inclined state, originally horizontal penetration airflow is truncated by inclined discharge passage, directly reduce airflow velocity, so that the speed of workpiece changes with airflow, quickly reduce, then workpiece is exported along the inclined discharge passage, ensure the stability of workpiece output, also reduce the probability of appearance scratch and damage of workpiece due to high-speed impact discharge passage.

The invention relates to the field of vision examination methods, in particular to an unattended self-service vision census system and method for schools, the system comprises a screening terminal and a server, and the screening terminal comprises an information acquisition module, an information transmission module and an examination module; the information acquisition module acquires student information in real time; the information transmission module is in bidirectional interaction with the server; the server is used for carrying third-party software for vision analysis and processing and carrying out vision reject ratio analysis and processing to form an analysis report; the examination module provides sighting mark display and an operation handle for student vision examination; the analysis processing module is used for judging the operation capability of vision examination on the student information acquired by the information acquisition module, and sending a monitoring signal to the operation monitoring module when the operation capability is limited; and the operation monitoring module is used for monitoring the operation behavior of vision examination in real time according to the monitoring signal of the analysis processing module and feeding back the operation behavior to the analysis processing module. According to the invention, abnormal operation conditions can be found in time.

The invention discloses a feeding device for a motor cover, and relates to the technical field of motor production, the feeding device comprises a feeding system, a first mechanical arm, a second mechanical arm and an external controller, the feeding system comprises a mounting rack, and the mounting rack is provided with a conveyor belt for feeding the motor cover; a sorting visual screening box is arranged on the conveying belt; an adjusting assembly is arranged in the conveying belt and used for preventing the conveying belt from deforming when the motor cover is fed. According to the feeding device, the adjusting assembly is arranged, the adjusting plate capable of being intelligently adjusted in the vertical direction is used for supporting the conveying belt used for feeding of the motor cover, deformation of the conveying belt during feeding of the motor cover is effectively prevented, and the stability of the motor cover on the conveying belt is further improved; and the situation that the motor cover is not accurately positioned on the conveying belt, and the mechanical arm is damaged is effectively prevented.