123 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 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.

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.

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.

This invention relates to the field of fluid mechanics and transient process analysis of hydraulic systems, and discloses a method for determining the occurrence boundary and risk level of liquid column separation. The method utilizes a visual test bench to conduct multiple experiments under different combinations of test parameters, collecting data and simultaneously recording the liquid column separation state. Based on Buckingham's π theorem, dimensional analysis is used to construct multiple independent dimensionless parameter sets from the test parameter combinations. These are used as input features, with the separation state as the target variable. A machine learning algorithm is introduced for multiple batch training to calculate importance scores, selecting the dominant dimensionless parameter with the highest and most stable score. Subsequently, regression analysis is used to fit the data boundary, solving for the intersection point and outputting the critical equilibrium point as a quantitative benchmark for the occurrence boundary. After confirming separation, high-scoring dimensionless parameters are selected to construct composite judgment parameters, which are compared with preset thresholds to classify the risk level. This invention can accurately define the critical equilibrium point of cavitation occurrence and quantitatively assess its risk severity.

The invention discloses a fine exercise training method and system under visual guidance for improving a visual function, and relates to the technical field of visual function improvement or recovery, and the method comprises the steps: determining a minimum threshold value according to a visual test index page, and generating a training scheme of a current training period based on a visual function impaired eye visual minimum recognition threshold value; when the training scheme is executed, to-be-copied characters with the character size being the real-time training character size are called from a paper copybook or a to-be-copied electronic character library to generate a current day copybook; the trainee is in a standard sitting posture, has a preset distance from the desktop and shields the eye-care copybook to copy the current day copybook; performing visual function testing after the training scheme is executed, and adjusting the training scheme of the next training period based on the evaluation training effect. The trainee can quickly improve the vision of the patient with the impaired optic nervous system function in a short time through fine movement under visual guidance, the compliance of the patient is improved, and the system has the advantages of being low in cost, high in feasibility and capable of being extended at home.

The present invention discloses a visualization test system for testing seepage erosion damage in foundation pit soil, comprising: a CT scanning system; a supporting system disposed on top of the CT scanning system; a triaxial pressurization system disposed inside the supporting system; a control system disposed on top of the triaxial pressurization system; and a collection system disposed outside the triaxial pressurization system. The CT scanning system comprises a CT gantry, a turntable, a turntable base, an X-ray transmitter, an array detector, and two gantry trays. The CT gantry comprises a base and two support rods, the two support rods being symmetrically and perpendicularly disposed on the upper surface of the base. The turntable base is disposed on top of the base, the turntable is rotatably disposed on the top of the turntable base, and the two gantry trays are respectively disposed on the inner side surfaces of the two support rods. The present invention can not only visually monitor the entire seepage erosion damage process of foundation pit soil samples, but also obtain high-definition CT images of the movement changes of soil particles during seepage damage in real time.

A vision test can be aided with controller actuation in a virtual environment. An electronic device, such as a head-mounted display, can establish a communication link between the electronic device and a controller held by a user associated with the electronic device. A user application can be executed to enable the vision test. The electronic device can display a VR user interface based on a driver license issuing requirement to create a 3D virtual environment, and the VR user interface can include a moving traffic scene on which one or more visual stimuli are displayed. The electronic device can drive one or more actuators of a controller in synchronization with displaying the VR user interface.

A virtual eye test can be conducted to evaluate night vision and glare sensitivity in a virtual reality (VR) environment. The test can be conducted using an electronic device that includes a head-mounted display (HMD) and a camera. The electronic device can generate a VR user interface corresponding to a photorealistic virtual environment and render the VR user interface on the HMD. The electronic device can simulate one or more dynamic lighting scenarios and while simulating these scenarios, in real time, continuously track eye movements and response times to visual stimuli using the camera. The device can then evaluate user response based on the eye movements and response times for testing night vision and glare sensitivity.

The invention relates to the technical field of out-of-tube boiling heat exchange, and discloses a visual bias type multi-type out-of-tube normal-temperature boiling heat exchange experiment system which comprises a shell-and-tube heat exchanger body, an evaporative condenser, a magnetic transmission gear pump, a liquid level meter, a metal float flowmeter, a data collector, a constant-temperature water tank, a turbine flowmeter, a low-temperature constant-temperature bath and a nitrogen cylinder. According to the system, the boiling phenomenon outside the heat exchange copper pipe in the heat exchanger can be observed and the heat exchange coefficients of the heat exchange pipes in different shapes can be measured through the visual offset type outside-pipe normal-temperature boiling heat exchange experiment system and the effective connection of the heat exchange copper pipe, the shell, the visual window and the light source collection port; the system is simple in structure and convenient to operate, can test related operation parameters of each component in the refrigeration process, realizes the characteristic of multiple functions of one set of system, adopts double-layer laminated transparent toughened glass as a light-transmitting material, has good sealing performance and high pressure resistance, and can realize visual test of boiling heat exchange outside a refrigerant pipe.

The present application relates to the field of geotechnical simulation test, disclose a kind of loose soil particle dynamic migration test method based on solid-liquid gradual phase change, the test device used includes pressurized water supply system, test box system and water pressure monitoring system, test box system includes visual test box, the bottom of box has the water inlet of porous water-permeable plate, variable cross-section size ice column is placed on the plate, loose soil sample is layered and filled around ice column according to set density, and different layer height position of sample is divided into pressure measuring hole, overflow port is arranged above the position of loose soil sample surface;Water pressure monitoring system is used to measure the water pressure parameter at each pressure measuring hole;When testing, pressurized water supply system supplies water to test box system through the water inlet, the migration of loose soil sample is observed, the dynamic evolution process simulation of loose soil sample piping is carried out, and the water pressure change of different parts of loose soil sample in the test process is recorded, which can be used to intuitively reflect and study the piping instability mechanism of loose soil.

1. The name of the design product: separate visual testing device. 2. The use of the design product: for code reader high-speed decoding ability test and visual detection algorithm ability test. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.