150 results about "Visual test" patented technology

The invention discloses a ship mobile energy storage system CAN communication protocol automatic test system and method, and the system comprises a protocol modeling and test configuration module, a simulation node behavior simulation module, a CAN bus interaction and power closed loop module, and a test analysis and result evaluation module. A CAN communication protocol specification of the ship mobile energy storage system and parameters of tested equipment can be obtained, a protocol analysis model and a test configuration file are constructed for format verification and logic consistency verification, meanwhile, a corresponding test case sequence is automatically generated, and the message sending time is controlled to generate a time sequence simulation message flow; and sending the time sequence simulation message flow to the tested equipment, simulating energy interaction behavior acquisition to generate a power feedback data set, testing to obtain a signal consistency deviation and a power execution error to construct a protocol conformity evaluation matrix, and generating a visual test report. According to the invention, the high coverage rate and automatic closed-loop test of the CAN communication protocol can be realized.

The invention discloses a soil-rock mixed filler compaction transparency visual test system and method, and relates to the technical field of civil engineering test equipment. In order to solve the problem that the movement and deformation of soil particles in the soil-rock mixed filler cannot be observed and recorded in the compaction process, the following technical scheme is provided: the device comprises a reaction frame and a model groove formed in the inner side of the reaction frame, an actuator is arranged at the top of the reaction frame, a double-track ball screw transmission mechanism is arranged between the reaction frame and the actuator, and the double-track ball screw transmission mechanism is arranged in the model groove. A pressure sensor is arranged at the bottom of the actuator, and the bottom of the pressure sensor compacts the transparent soil in the model groove through a roller; a laser is arranged at the side end of the model groove and irradiates the transparent soil in the model groove to present a speckle field plane, and an industrial camera is fixed right behind the model groove and collects speckle field pictures generated in the compaction process. According to the invention, visual monitoring and analysis of the compaction process of the soil-rock mixed filler can be comprehensively and accurately realized.

The invention discloses a lithium battery thermal runaway in-situ fire, explosion and fire suppression visual testing device based on multi-dimensional signal acquisition. Comprising a metal high-pressure tank, an atmosphere device, a gas collecting device, a battery fixing support, a thermal runaway heating simulation device, a suppression experiment fire extinguishing device, an explosive force measuring device, a needling experiment device, a gas component monitoring device, a thermal radiation monitoring device, a central control system, an ignition device and an image recording system. According to the testing device, smoke does not need to be collected into other containers for explosion risk testing, in-situ fire suppression and explosion of needled, overcharged and overheated batteries can be carried out under simulation of a complex gas atmosphere, multi-dimensional signal collection can be carried out in the whole experiment process, visualization is achieved, and the testing device is specially used for lithium iron phosphate batteries and low-nickel ternary lithium batteries.

The invention discloses a directional grouting test device and a visual test method for a goaf, and the method comprises the steps: building a bed rock, laying a mineral product to be mined, laying and filling an area to be reinforced, burying a soil pressure gauge and a water pressure gauge, burying a grouting floral tube, arranging a grouting inner tube, communicating a grouting system, and setting a particle imaging velocimeter PIV. In the test process, the seepage and diffusion process in the slurry and the stress state of the rock-soil body are monitored by using a soil pressure meter and a water pressure meter; calculating the total amount of slurry flowing into the model through a slurry barrel outer scale; after grouting is finished, original-state sampling is conducted on the grouting permeation reinforcement area, a mechanical property test and a microcosmic test are conducted, and the grout permeation and reinforcement effect is analyzed; the grouting pressure-seepage distance-mechanical property relation is obtained. The goaf directional grouting permeation simulation device can carry out goaf directional grouting permeation simulation, facilitates mechanical property test of original state sampling, and has the characteristics of visualization, simulation, monitoring and the like.

The invention discloses a one-key performance test method, medium and equipment based on JMeter and template configuration, and the method comprises the steps: obtaining a parameterized performance test template from a template configuration center in response to a test instruction, injecting runtime parameters through a template engine, and generating an executable JMeter test plan; parsing the plan to identify a load pressure demand, thereby dynamically scheduling resources from a distributed load injector cluster and distributing a test plan; uniformly triggering test execution on the cluster, and synchronously acquiring a performance data stream from the JMeter and a resource data stream of the tested system; and finally, timestamp alignment and fusion are carried out on the two types of data streams, intelligent diagnosis is carried out on a formed monitoring data set based on a diagnosis rule base or an intelligent analysis model, and a visual test report containing bottleneck positioning, resource association and link tracking analysis results is generated. According to the invention, full-process automation and intelligentization of performance testing are realized, and the testing efficiency is remarkably improved.

The invention relates to a Python-based Web system automatic test method, which comprises the following steps of interface test data capture, page element acquisition, test framework establishment and establishment of a visual test platform by combining a UI (User Interface) and an interface case, in the interface test data capture, a charls tool is used for data capture, agent setting and SSL (Secure Socket Layer) certificate installation; after packet capturing is completed, file conversion in a yaml format is carried out; in the step of page element acquisition, related information of elements is acquired by using a method provided by Selenium, and a page is analyzed, processed and packaged. According to the method, the Web automatic test execution efficiency can be improved, the problem that the use threshold is too high is avoided, and the project risk and the labor cost are reduced.

The invention relates to the field of testing, and particularly discloses an Internet of Vehicles testing system and method, so as to improve the testing accuracy. The system comprises a sensing layer used for acquiring device state data of a plurality of Internet of Vehicles devices in a current time period; the edge computing layer is used for acquiring test context information corresponding to a current time period through a pre-trained first network model, generating a first test case based on the equipment state data and the test context information, and distributing the first test case to an edge computing module; the platform layer is used for generating a second test case according to the historical test data through a pre-trained second network model, and distributing the second test case to the edge computing module and / or the cloud equipment; the application layer is used for generating and displaying a visual test result according to test data generated by the edge calculation module and / or the cloud equipment for the test case; wherein the model parameters of the network model are dynamically adjusted by adjusting the penalty coefficient.

A method and apparatus for generating a visual field pattern which serves as a subjective test protocol to evaluate central vision using dynamic image generation to prevent the brain from filling-in to provide better results of patient feedback and reporting of locations of visual disturbance. This enables effective central vision testing to detect the presence of visual field disruptions including scotoma, visual-neurological perceptual effects such as filling-in, and Troxler fading. The present method and apparatus can be used for vision monitoring and self-assessment, and more particularly for monitoring vision for damage or disease to the macula or retina.

The invention discloses a hydraulic asphalt mixture seepage-proofing material heat-water-force coupling visualization test analysis system and a test method thereof, and belongs to the technical field of hydraulic engineering material tests.The hydraulic asphalt mixture seepage-proofing material heat-water-force coupling visualization test analysis system comprises a clamp holder, a transparent heat shrink tube is arranged in an inner cavity of the clamp holder, and a hydraulic asphalt mixture seepage-proofing material is wrapped in the transparent heat shrink tube; the top of the clamp holder is connected with a loading and measuring subsystem, the loading and measuring subsystem is connected with a fluid control subsystem, the fluid control subsystem is connected with a temperature regulation and control subsystem, the clamp holder is externally connected with a visual observation subsystem, the visual observation subsystem is externally connected with a computer, and the computer is connected with a computer. The technical problem that an existing testing system cannot visually observe performance evolution in the asphalt mixture under the thermal-hydraulic-mechanical coupling effect is solved.

The invention discloses a visual test device and method for porous medium displacement under different gravities. The micro-fluidic chip model module, the displacement injection module, the image acquisition module and the light source module are all placed in the model box shell, the model box shell is placed in a hanging basket of a centrifugal machine, fluid is stored in the displacement injection module and used for providing the fluid for the micro-fluidic chip model module, the displacement injection module is connected with the micro-fluidic chip model module, and the image acquisition module is connected with the light source module. The image acquisition module is used for acquiring optical image information of the micro-fluidic chip model module in a fluid displacement process; the method comprises the following steps: dyeing a primary fluid, installing the micro-fluidic chip, pushing a plastic injector by using an injection pump to inject the fluid into the micro-fluidic chip, and observing a flow migration mode and fluid distribution of the fluid in a displacement process in a porous medium. The device is simple and easy to manufacture, easy to operate and high in stability, model tests are carried out by utilizing supergravity and microgravity, and real-time observation of the two-phase fluid displacement process is realized.

The present invention relates to a multi-luminance visual navigation test field for performing a vision test on a test subject. The multi-luminance visual navigation test field comprises: a test map, which can be operated to form a plurality of test scenes, each of which is provided with a preset walking route; a plurality of static obstacles, which are arranged on the test map and are used to form obstacles on the test map to hinder the test subject's progress; and a light source assembly, which is used to provide a plurality of light intensities. The multi-luminance visual navigation test field solves the problem in the prior art that the route design of the MLMT scheme is a full white background and arrows are used to indicate the direction of travel, but since most RP patients have extremely low vision and show decreased panretinal light sensitivity mainly due to rod cell damage, the problem that patients have difficulty distinguishing route markings and thus have difficulty in detection is solved. The multi-luminance visual navigation test field has a wide range of applications, low cost and higher detection accuracy.

The invention provides an evaporation section simulator, a visual test section and a visual test system. The evaporation section simulator comprises a light-transmitting bearing container, at least one supporting piece and a liquid absorbing core. The light-transmitting bearing container is provided with a containing cavity used for containing a liquid metal working medium. The at least one supporting piece is arranged on the light-transmitting bearing container and located in the containing cavity; the supporting piece is located on the heat conduction wall of the light-transmitting bearing container, and the heat conduction wall faces the heating piece. The liquid absorbing core is separably arranged on the top of at least one supporting piece. The evaporation section simulator provided by the invention is simple in structure. The supporting piece is arranged on the heat conduction wall and close to the heating piece, the heat transfer characteristic of the alkali metal heat pipe under the real working condition is easily simulated, and the generation process and the triggering characteristic of boiling criticality are conveniently observed and researched.

The present application belongs to the technical field of geotechnical engineering and indoor test, and provides a visual test device and method for interaction between high-pressure rotary jet flow and soft soil, which comprises a detachable model box, a jet medium simulation system, a high-pressure rotary jet flow generation system, an overburden pressure simulation system, a data acquisition system and a tracing system.The test device has the advantages of high visual degree, detachability, easy assembly and easy production.The jet medium simulation system has significant shear thinning characteristics, and has a high degree of reduction of the non-Newtonian fluid properties of cement slurry, which not only overcomes the problem of easy blockage of the pipeline, but also avoids distortion defects.The trajectory of the fluorescent powder particles in the jet medium simulation system can be captured by a high-speed camera under the irradiation of the pulsating laser beam generated by the pulsating laser, so as to accurately reproduce the flow field information of the high-pressure rotary jet flow in the soft soil.

A mobile device and a method for testing an individual's vision are provided, the mobile device including a screen for displaying at least one test pattern, such as a smartphone or a tablet computer. A test of the individual's vision is performed using the test pattern displayed on the screen of the mobile device, in particular for testing visual acuity, contrast sensitivity and / or visual disturbances. Further, a parameter influencing the test result is evaluated before and / or during performing the test. The parameter includes at least one of the distance between the eye of the individual and the screen; the brightness at which the test pattern is displayed; and the ambient luminosity.

A system may include a headset device comprising a display screen and an adaptive map perimetry algorithm that is configured to access or implement a normative database or model. The system may implement a VF test adapted to fit an area of the display screen based on values in the normative database or model and is rendered as a same or similar visualization compared to one or more different headset devices having different display screens having different respective shapes, formats, sizes, and / or resolutions. The system may receive visual test data indicating a visual field of the user and detect one or more initial test locations. The one or more initial test locations define one or more healthy clusters indicative of an absence of scatoma and one or more damaged clusters indicative of scotoma. The system may generate a spatial mapping identifying locations of the one or more damaged clusters.

There is provided a method for determining type of cataract by an electronic device. The method includes performing vision focus calibration for a user, determining central and peripheral regions of interest on a display of the electronic device based on fixated vision, performing a primary test for obtaining scores for the central and peripheral regions of interest, selecting at least one vision test mode based on the obtained score, and adapting at least one visual display parameter based on the obtained score and the selected at least one vision test mode. The method also includes determining a type of cataract from the selected at least one vision test mode, determining severity of the determined type of cataract, and providing the determined type of cataract and the determined severity with one or more recommendations to the user.

A virtual vision test can be performed to evaluate response time in detecting subtle visual changes under varying light conditions in a virtual reality (VR) environment. The test can be conducted using an electronic device with a head-mounted display (HMD) and a camera. The device can generate and render a VR user interface in a photorealistic virtual environment, simulating dynamic lighting scenarios. The device can continuously track eye movements in response to visual stimuli presented in these scenarios. The system can then evaluate the detection of subtle visual changes based on the tracked eye movements, and provide a comprehensive assessment of visual acuity and responsiveness under different lighting conditions.

The utility model discloses a flowing light and color light bar testing device which comprises a main controller which is electrically connected with a sensor unit, a logic control panel and a testing host. The sensor unit collects the voltage and current of the lamp panel to be detected; the test host is connected with a photosensitive camera and a code scanning gun; the photosensitive camera is arranged on one side of the to-be-detected lamp panel and collects the color of a lamp strip when the to-be-detected lamp panel is lightened; the code scanning gun scans a bar code or a two-dimensional code on the lamp panel to be detected; the logic control panel is detachably and electrically connected with the to-be-tested lamp panel, an LED driver and a numerical control power supply are arranged on the logic control panel, the numerical control power supply provides power for the to-be-tested lamp panel, and the LED driver is used for driving the to-be-tested lamp panel to be lightened. According to the utility model, a professional visual test system is used to prevent the light bar from hurting human eyes, the integrity of product function test is realized, and bad leakage is avoided.

The invention discloses a visual test device for simulating high-temperature and high-pressure working conditions of a nuclear reactor core rod bundle channel prototype, the device is provided with a core test layer and a multi-stage depressurization layer, and a core test layer window on the side surface of the core test layer is sealed and insulated by using a sealing ring and an insulating spacer; an electric heating rod bundle is arranged in the core test layer; the multi-stage pressure reduction layer is formed by coaxially arranging a plurality of cylindrical pressure reduction layer windows outside the core test layer; circulating cooling water with stable pressure is respectively introduced into the core test layer and each pressure reduction layer, the pressure of each path of circulating cooling water is different, and the pressure difference of the two sides of each window is within the window material pressure bearing range; circulating cooling water in each pressure reduction layer is kept at a single-phase low temperature, so that visual observation is facilitated, and the temperature of the sealing material is ensured to be lower than the temperature resistance limit. According to the invention, the key technical problems of material strength limitation and thermal expansion mismatch in the high-temperature and high-pressure visualization test are solved, and a reliable test platform is provided for the high-temperature and high-pressure visualization of the reactor core rod bundle channel prototype.

A vision test can be performed based on real-time audio instructions in a virtual environment. An electronic device, such as a head-mounted display, can execute a visual assessment application, including generating a user interface corresponding to a three-dimensional virtual environment. The electronic device can display a plurality of visual stimuli in the user interface, and each visual stimulus can be displayed in duplication with respect to a respective target depth. The electronic device can receive one or more user responses, and each user response can indicate whether a user perceives a corresponding visual stimulus in duplication at the respective target depth. Based on the one or more user responses, the electronic device can determine a depth perception profile of the user, and the depth perception profile can include a plurality of depth perception levels corresponding to a plurality of target depths.

The application discloses a kind of rock fissure low temperature two-phase percolation visual test system and test method, system includes low temperature control system, data acquisition system, high-definition video image acquisition and transmission system, gas transmission system, transparent fissure sample, gas drainage pipe, telescopic stand, parallel light source;The transparent fissure sample is placed on parallel light source in low temperature control box, both ends are equipped with steady flow tank, two gas drainage pipes are respectively installed in the lower end of two end steady flow tank, and pressure sensor for measuring the gas parameters in each gas drainage pipe is arranged in each gas drainage pipe.The low temperature control system of the application keeps the transparent fissure sample and fluid in low temperature state, and different low temperature environments are set during the test to carry out fissure low temperature two-phase percolation test.The application has simple structure and is easy to operate;The displacement of transparent fissure sample can be observed in real time;The displacement law of the sample under low temperature and different flow conditions can be continuously measured and studied.

A system for displaying visual content, comprising at least one output device, and at least one controller, and at least one input device, wherein the visual content comprises features comprising a color scheme and / or at least one color group, the output device is configured to display the visual content, the controller is configured to generate a first visual test comprising at least one first test image, and to allow displaying the visual content on the output device if a user correctly identifies an object in the first test image, the input device is configured to receive input by the user to identify the object in the first test image. In some examples, the first test image is generated using features and / or expected features of the visual content.

To perform a visual acuity test with high accuracy so as to be easily understood even by a child or the like.SOLUTION: A visual acuity examination display tool 20 includes a display tool body 21 and a visual acuity examination mark 100 displayed on the display tool body 21, and the visual acuity examination mark 100 includes a mark part 101 which can be recognized by an examination object person including a child, and a notch part 105 which is formed in a part of the mark part 101 and indicates a minimum separation threshold.SELECTED DRAWING: Figure 1

Some systems and methods disclosed herein facilitate calibration of a head-mounted display while a visual test is performed. One mechanism of facilitating calibration involves detecting, as a visual test is being performed, that the user's eyes moved in the direction of a displayed stimulus but have not stopped at the point of where the stimulus is displayed, and instead stopped at a different point (e.g., a threshold distance away from the stimulus). Based on that detection, the system may determine that the user has seen the stimulus and that calibration of the sensors is needed. The system may then record that the user has seen the stimulus and perform sensor calibration before displaying the next stimulus.

A patient's visual health can be evaluated via a virtual reality (VR) system, which can include a VR headset in electronic communication with a computing device. The computing device can cause a phenomenon (such as a visual test or an image) to be displayed on the screens of the VR headset. Using varying combinations of sensors, cameras, probes, and microphones, the VR headset collects data about the patient as she perceives and responds to the phenomenon. Optionally, the computing device can alter the phenomenon and analyze the patient's perception and responses to evaluate the patient for macular degeneration. Optionally, the computing device can alter the phenomenon based on the patient's perception and responses.

The invention discloses a shield tunneling whole process visualization test model, which belongs to the technical field of shield simulation tests and comprises a model box body, a shield simulation system, a propulsion control system, an acquisition system and an intelligent electric control system. The model box body is used for loading transparent soil, three surfaces are provided with transparent toughened glass, and the top is provided with a sliding cover plate; the shield simulation system comprises a pipe joint, a shield shell, a cutterhead and a sealing bin, and has the functions of reduction cutting, deslagging and grouting; the propelling system provides fine propelling speed and stable driving force; the acquisition system synchronously acquires the internal displacement of the soil body and the soil pressure data of the sealing bin; and the intelligent electric control system realizes parameter setting, real-time monitoring and cooperative control. The model solves the problems that an existing model is incomplete in observation, low in control precision and poor in scene adaptability, multiple scenes such as tunneling excavation and excavation face instability can be simulated, and a precise test carrier is provided for shield construction mechanism research and risk prevention and control.

In some embodiments, a wearable device performs a visual test that includes simultaneously presenting a first eye stimulus for a first eye of a user of the device and a second eye stimulus for a second eye of the user, where the first eye stimulus has a display characteristic level greater than a display characteristic level of the second eye stimulus. The display characteristic level of the first eye stimulus and second eye stimulus are sequentially increased until feedback information indicates detection of at least one of the first eye stimulus or the second eye stimulus by the user. In response to the feedback information indicating such detection by the user, the other stimulus is presented at one or more sequentially increasing display characteristic levels until the feedback information indicates detection of the other stimulus. Ocular anomaly information of the user is generated based on the feedback information.

The solid-liquid two-phase flow pump experimental device comprises a convenient recycling device and a visual testing structure, the recycling device is a conical funnel which is arranged in an open type water tank and provided with sieve holes, an opening of the conical funnel is connected to a pipe opening of a water inlet pipe in an upward mode, the opening extends to the position above the water surface, and the visual testing structure is arranged in the open type water tank. And the water outlet pipe extends into the conical funnel. The water surface in the water tank submerges the outlet of the water outlet pipe, it is ensured that gas does not enter a test circulation loop system, the lower end of the conical funnel is connected with the water inlet pipe section, and it is ensured that all solid-phase particles enter the test pump. Due to the design of the conical funnel structure, the risk that a traditional stirrer is uneven in stirring and large in test error is avoided; and when the test of particles with different sizes or mixed particles is carried out, the experimental particles can be quickly recycled, the experimental time is saved, and the test precision and reliability are improved.

The present invention aims to provide a device for detecting appearance defects of mobile phone back covers with a compact structure, a stable detection process, and a comprehensive detection effect. The present invention includes a frame, a visual test module, and a transfer module. The transfer module is fixedly arranged on the frame to drive the mobile phone back cover to move. The two ends of the transfer module are respectively connected to the external inflow mechanism and the external outflow mechanism. The visual test module is arranged above the transfer module. The visual test module includes a first detection component, a second detection component, a third detection component, and a code scanning component arranged in sequence. The first detection component visually inspects both sides of the mobile phone back cover, the second detection component visually inspects the entire mobile phone back cover, the code scanning component recognizes and detects the secret code on the mobile phone back cover, and the third code scanning component comprehensively inspects the mobile phone back cover with multiple light sources. The present invention is applied to the technical field of mobile phone back cover appearance defect detection equipment.

Some systems and methods disclosed herein facilitate calibration of a head-mounted display while a visual test is performed. One mechanism of facilitating calibration involves detecting, as a visual test is being performed, that the user's eyes moved in the direction of a displayed stimulus but have not stopped at the point of where the stimulus is displayed, and instead stopped at a different point (e.g., a threshold distance away from the stimulus). Based on that detection, the system may determine that the user has seen the stimulus and that calibration of the sensors is needed. The system may then record that the user has seen the stimulus and perform sensor calibration before displaying the next stimulus.