249results about How to "Avoid dizziness" patented technology

The present invention provides various apparatus and methods for improving, augmenting or enhancing a vision of a person that include a first camera, one or more sensors, a microdisplay, and one or more processors communicably coupled to the first camera, the one or more sensors and the microdisplay. The first camera is configured to acquire a first image of a scene facing away from an eye of the person. The microdisplay is configured to display a modified first image to the eye. In one operational mode, the one or more processors are configured to acquire the first image of the scene using the first camera, modify the first image based on one or more vision improvement parameters, and display the modified first image on the microdisplay to improve, augment or enhance the vision of the person.

The invention provides an air conditioner temperature control method and an air conditioner temperature control system, wherein the method includes the following steps: indoor environment temperature and outdoor environment temperature are detected; which one of a plurality of preset temperature ranges the outdoor environment temperature lies is judged, and the temperature relation between target temperature and the outdoor environment temperature corresponding to the preset temperature range is obtained; according to the temperature relation, the target temperature is calculated; the relation between the target temperature and the indoor environment temperature is judged, and according to a judgment result, the operating state of a compressor is controlled; the target temperature increases as the outdoor environment temperature increases. The regulable range of indoor environment temperature is wider, corresponding temperature control curves are adopted for the different preset temperature ranges, the change of outdoor environment temperature can be more accurately reflected by an indoor environment, the difference between indoor temperature and outdoor temperature is small, users can be more easily adapted to the change of the difference between indoor temperature and outdoor temperature, the occurrence of air-conditioning diseases such as dizziness, sunstroke and cold can be prevented, and comfort is good.

The invention discloses a method for providing a user interface in a display device and the display device. The method for providing the user interface in the display device comprises detecting motion vectors of the display device; computing motion vectors which are used for preventing the user interface and user relative positions from changing based on detected motion vectors of the display device; moving the user interface in a display screen of the display device according to the motion vectors of the user interface. According to the method for providing the user interface in the display device, user relative position change of the display device is prevented due to the fact that the user interface on the display screen of the display device is moved and accordingly the user is prevented from dizziness and watching comfort of the user is improved.

A method for operating an electronic device is provided. The method includes connecting to a Head Mounted Device (HMD), receiving an input through the HMD while the HMD is connected, and in response to the received input, performing a function corresponding to the received input.

The invention discloses a multifunctional detachable yacht of diving and sightseeing. A lower part of the yacht on water is provided with a rise-and-fall underwater sightseeing cabin; both ends of the underwater sightseeing cabin are provided with air circulation tubes; the middle of the air circulation tubes are provided with a rise-and-fall elevator; the circumference of the underwater sightseeing cabin is provided with a meshy diving chamber which is integrated into a whole with the underwater sightseeing cabin via a rise-and-fall positioning rod; a center on the bottom of the yacht on water is provided with a flute; the underwater sightseeing cabin is hung on a yacht lifting device; when a preset limitation is reached, the underwater sightseeing cabin and the meshy diving chamber are reset synchronously inside the flute. The invention solves the complication of the underwater sightseeing facility and the uncertainty of the safety terminal technique and gets rid of the dependency on high required technical facilities. The simple and scientific structure design guarantees safety and is easy for management and control. The multifunctional detachable yacht of diving and sightseeing has the advantages of low manufacture and operating cost and safe and comfortable riding.

The invention provides a liquid crystal lens array and a stereoscopic display apparatus, and relates to the technical field of stereoscopic display. The liquid crystal lens array includes a plurality of liquid crystal microlens units, wherein each liquid crystal microlens unit includes a first glass substrate and a second glass substrate; the first glass substrate is plated with a first electrode; the second glass substrate is plated with a second electrode; liquid crystal is filled between the first glass substrate and the second glass substrate; and the first electrode includes a circular electrode at the center position, and at least two annular electrodes which are arranged in the shape of a concentric ring and take the circular electrode as the center. As the 3D display effect formed by the liquid crystal lens array has no directionality, a user can watch the required 3D effect from a wider angle, and the watching angle is more continuous, so that the 3D display effect of a stereoscopic display apparatus using the liquid crystal lens array becomes better and has no shear zones and the problem that the watcher becomes giddy because of being in the shear zone is effectively avoided.

The invention discloses a video picture switching method, a video picture switching system, a recording and broadcasting server and a video recording and broadcasting system, which are used for switching video pictures in a speaker tracking mode in the recording and broadcasting process of a meeting. The video picture switching method comprises the following steps that trigger conditions of video picture switching in a target tracking mode are preset; a cloud platform camera continuously tracks a target to acquire a video picture of the target, and when the trigger conditions are met, a recorded and broadcast video picture is switched into a meeting place panoramic video picture from the video picture shot by the cloud platform camera; and when the cloud platform camera completes regulation and the trigger conditions are not met, the recorded and broadcast video picture is switched back into the video picture shot by the cloud platform camera. The problem that in the prior art, the video picture is discontinuous due to a mechanical process, an installation position and a tracking technology of a cloud platform, or due to the excessive moving speed of a lens of the camera, a video is unsmooth so that a user generates a dizzy feeling is avoided; and user experience is promoted.

The invention relates to a vision testing and training system based on virtual reality. The vision testing and training system comprises a head-wearing device, an image processing device in communication connection with the head-wearing device, an intelligent control device in communication connection with the head-wearing device and the image processing device, as well as a dizziness-preventing device and a remote terminal device which are in communication connection with the intelligent control device, wherein the head-wearing device comprises an image display device, an audio play device and a motion sensing device; the dizziness-preventing device is used for receiving the control of the intelligent control device so that the conversion angle of a vision testing image or a vision care image received by a user and the head position and angle shifting motion state of a user are synchronous, thus no dizzy feeling is generated during testing and health care, and therefore, the real sense of immediacy and sense of reality are achieved.

The invention discloses an okra juice drink and a preparation method therefor. The drink comprises the following ingredients, by weight, 45 parts of okra original juice, 4 parts of white granulated sugar, 0.5 part of xylitol, 0.01 part of sucralose, 0.1 part of citric acid, 0.01 part of tartaric acid, 0.03 part of sodium citrate, 0.01 part of glycine, 0.03 part of taurine, 0.03 part of vitamin C, 50.28 parts of purified water for drinking and 0.08-0.1 part of essence. The drink has good taste, and is beneficial for absorption of nutrition and health care components in human body. The bioavailability of active ingredients is raised, and the drink is suitable for popularization and application.

The embodiment of the invention discloses a regulation method for head lamps, comprising the following steps: acquiring video information of vehicles around a main vehicle; extracting head lamp light source areas of vehicles from video information, and obtaining corresponding area parameters; tracking head lamp light source areas, and obtaining distance between head lamps of vehicles and the main vehicle according to area parameters; calculating with distance to obtain an optimal irradiation parameter of the head lamp of the main vehicle; and regulating position of the head lamp of the main vehicle to position of the irradiation parameter. The proposal provided by the invention can recognize the other vehicles through acquired video information, regulate irradiation height and horizontal deflection angle of the head lamp of the main vehicle, and prevent making drivers of the other vehicles swim by the head lamp, furthermore, the proposal provided by the invention overcomes the defect that operations are complex because drivers frequently and manually switch far and near lights to adapt driving needs in the prior art. Furthermore, a regulation device for head lamps, and a driver assistance system including the same are further disclosed by the embodiment of the invention.

The invention provides a photochromic lens, and a preparation method and an application thereof. The photochromic lens comprises a substrate, a first photochromic gradient layer, a second photochromicgradient layer, a first hard reinforcing layer and a second hard reinforcing layer. Firstly, the first photochromic gradient layer and the second photochromic gradient layer endow the photochromic lens with the properties of being colorless and transparent under indoor light intensity and becoming dark under outdoor sunlight activation; and secondly, through adopting a color fading treatment process, the photochromic lens presents different photochromic depths under the activation of sunlight, the gradual change effect of the photochromic lens is realized through the transition between different photochromic depths, the requirements of a user for different photochromic depths when the user looks near and far outdoors are met, and the discomfort brought to the user due to sudden change ofthe color depth is avoided. The photochromic lens can be obtained by adopting a layer-by-layer dip-coating, lifting and curing method, the preparation process is simple, and the photochromic lens hasa wide industrialization prospect.

The invention discloses a differential evolution algorithm based adaptive indoor dimming method and system. The adaptive indoor dimming method comprises the steps that a DALI interface dimming unit is in communication with M infrared illuminometers indoors through an RS485 bus, and is in communication with LED lamps through a DALI bus; the illumination of the current environment is read by the illuminometers; the usage scenario is determined according to the illumination of the current environment: when the DALI interface detects that illuminometers with the number which is greater than a predetermined number n do not detect human body signals when the detecting time exceeds a predetermined time t through the illuminometers, the current usage scenario is determined to be a special usage scenario; or otherwise, the current usage scenario is determined to be a normal usage scenario; when the usage scenario is determined to be the special usage scenario, it is proves that certain illumination is needed to be applied to the current indoor; and the DALI interface dimming unit executes the differential evolution algorithm to obtain an optimal lamp luminance combination so as to performing dimming on the special region to realize the predetermined illumination value.

The invention discloses a method and device for determining a display position of a user interface control in virtual reality. The method includes the steps of converting a first coordinate position from a preset coordinate system to a spherical coordinate system, wherein the first coordinate position is used to represent an initial position of the user interface control in a virtual reality space; calculating a third coordinate position corresponding to each frame of animation during the following movement of the user interface control from the first coordinate position to the second coordinate position, wherein the second coordinate position is a position which is gazed by a user in the virtual reality space and is at a preset distance from a viewpoint of the user; remapping the third coordinate position from the spherical coordinate system to the preset coordinate system, and determining a real-time display position of the user interface control in each frame of animation. Accordingto the method and device for determining the display position of the user interface control in virtual reality, the technical problem that the comfort level of a user interface control display mode in a VR application provided in the related art is poor or information provided by the interface is missed easily is solved.

The invention relates to an LED (Light-Emitting Diode) lamp tube which is characterized by comprising a transparent lamp tube, an LED illumination module and end covers, wherein the LED illumination module is arranged in the transparent lamp tub; both ends of the transparent lamp tube are respectively provided with stems; the end covers cover the peripheries of the stems; the stems are in vacuum seal fit with the transparent lamp tube; and vacuum sealed cavities formed by the stems and the transparent lamp tube are filled with inert gas. The LED lamp tube has the beneficial effects that 1, the stems are in vacuum seal fit with the transparent lamp tube and the inert gas is filled, so that heat of the LED illumination module arranged in the transparent lamp tube is rapidly dissipated by the inert gas, the rising amplitude of temperature rising is reduced and the service life is prolonged; 2, a radiator is avoided being used, the weight is reduced and cost is reduced; 3, in an LED light emitting source, except an LED chip, other components and fixing glue are all made of light transmitting materials, thus favorably enabling a light emitting angle of the LED chip to be equal to 4pi, avoiding dizziness and improving use comfort.

A method for controlling backlight of portable electronic device in hysteresis manner pre-sets the portable electronic device in a default mode and senses a background brightness. The portable electronic device is operated at a daylight mode when the sensed background brightness is larger than a first threshold. When the portable electronic device is operated at the daylight mode and the sensed background brightness is smaller than a second threshold, the portable electronic device is again operated at the default mode, where the second threshold is much smaller then the first threshold to provide hysteresis effect. Therefore, the backlight can be turned off when the background brightness is sufficient. A rapid switch between default mode and daylight mode can be prevented by the hysteresis-manner control and user dizziness caused by rapid modes switch can also be prevented.

The invention discloses a light field display device and a display method thereof. A system control element is used for making an image rendering element render a display image according to a set timesequence based on three-dimensional position information obtained by a sight tracking element so that a display image conforms to a visual effect of a human eye focusing plane, and is used for makinga focal length adjusting element adjust a focal length according to the set time sequence. Total duration of the set time sequence corresponding to each display period is less than refreshing time ofhuman eyes. A display element is used for emitting light carrying the image information of the rendered display image. The focal length adjusting element is used for emitting the light emitted by thedisplay element to a projection lens. The projection lens is used for projecting the light emitted by the focal length adjusting element to an optical element. And the optical element is used for emitting the light projected by the projection lens to the human eyes. Through focusing adjustment of a plurality of imaging surfaces within a certain depth range, a natural 3D image is presented, and eye fatigue and dizziness caused by long-term watching of the human eyes are avoided.

The invention discloses an intelligent assistance commode chair. The intelligent assistance commode chair comprises a backrest (1), armrests (2), a chair seat (3), a toilet seat (4) and chair legs (6). The toilet seat (4) is placed on the chair seat (3); the chair seat (3) and the chair legs (6) are connected through hinge parts (5), and the chair legs (6) adopt electric push rods; the chair seat (3) is provided with a lifting button switch (9) and a membrane pressure sensor (8); a control module (7) is arranged on the lateral side of the chair legs (6); the chair legs (6), the lifting button switch (9) and the membrane pressure sensor (8) are respectively electrically connected with the control module (7). By adoption of the electric push rods for driving, vertical position variation of the toilet seat is realized, an inclination angle of the toilet seat provides an upward supporting force for an elderly person to get up, and getting up and seating are facilitated for the elderly person while normality in utilization is unaffected.

The invention provides a light field display device, relates to the technical field of display, and aims to solve the problem of visual fatigue caused by inconsistent monocular focusing depth and binocular convergence depth and prevent a user from feeling dizzy. The light field display device comprises a display screen and a lens unit arranged on the light emitting side of the display screen, wherein the lens unit comprises a plurality of lenses arranged in an array; the display screen is arranged on the focal planes of the plurality of lenses; the display screen comprises a first substrate and a second substrate which are oppositely combined, wherein the first substrate is a light emitting side substrate, the second substrate comprises a plurality of pixel islands arranged in an array, and each pixel island comprises at least one sub-pixel; the plurality of pixel islands correspond to the plurality of lenses; light rays emitted by sub-pixels of the pixel island are transmitted to a view area formed by human eyes through the corresponding lenses to be smaller than or equal to a half pupil area, and light rays, emitted by different sub-pixels in the pixel island, of different viewpoints are emitted into different view cone cells through the lenses. The invention is suitable for manufacturing the light field display device.

The invention discloses an auxiliary device for rhythmic gymnastics turning training. The auxiliary device comprises a base, an annular track is arranged on the upper portion of the base and fixedly connected with the base through a support, a first arc-shaped sliding block with power is cooperatively installed on the inner ring of the annular track, a vertical rod is fixedly installed at the portion, close to the rear side, of the top of the base, a transverse shaft is arranged on the front side of the vertical rod, the rear end of the transverse shaft is movably linked with a vertical rod bearing, the transverse shaft and the annular track are coaxial, the front end of the transverse shaft is located in the annular track, a transverse grabbing rod is arranged at the bottom of the front end of the transverse shaft, a vertical connecting rod is fixedly installed in the middle of the top of the grabbing rod, the upper end of the connecting rod is movably connected with the side of the transverse shaft through a bearing, and a first hydraulic rod is fixedly installed on the inwards-concaved face of the first sliding block. With the auxiliary device, an athlete can be helped to traintwist turn actions, can also be helped to perform multi-time simulation practice of the twist turn actions within short time, and can be rapidly helped to overcome dizziness when performing the twistturn actions, and the controlling ability is improved for the body of the athlete during in-air turning.

The invention provides a shading plate assembly, a control method and a control device thereof and a vehicle, which relate to the technical field of shading, and can avoid the problems of darkening ofan exterior scene and worsening of a visual field while solving the problem of visual dizziness of human eyes caused by direct sunlight in the driving process of the vehicle. An image acquisition module in the shading plate assembly is used for acquiring image information of a transparent panel and human eyes; a control module is used for determining target position information of fixation pointsof human eyes positioned on the transparent panel according to the image information, and determining a target control area, corresponding to the target position information, on the transparent panel; a detection module is used for detecting corresponding optical information when light penetrates through the target control area and is emitted to human eyes; and the control module is also used foradjusting the light transmission degree of the transparent panel in the target control area according to the optical information, so that the optical information is within a preset range. The shadingplate assembly provided by the invention is used for shading.

The invention discloses a virtual reality anti-dizzy method and system applicable to foreign language teaching. The method comprises the specific steps of after a gyroscope is utilized to detect a head motion of a user, display before both eyes of the user is temporarily frozen or fuzzed, after the head motion stops, according to a new head position, updating the display, besides, while the display is frozen, visible content of a new viewing angle of the user can be updated in real time in a picture in picture mode, and it is convenient for the user to determine the amplitude and the end point of the head motion. According to the virtual reality anti-dizzy method and system applicable to the foreign language teaching, an existing thought of increasing the measurement speed and the display speed is abandoned, instead, a method of lens jump is adopted, a picture before the eyes of the user is intermittently updated, through the method, the hardware cost is lowered, and the phenomenon of dizziness of the user is remarkably reduced in non-competitive virtual reality occasions like the foreign language teaching at the same time.

The invention relates to a positioning and movement identification system, which belongs to the technical field of the positioning device structure. The positioning and movement identification system consists of a moving group and a fixed group, wherein the moving group comprises a head, a cursor device, a distance measuring device, an electronic gyro attitude indicator and a data processing module b; and the fixed group comprises an image acquisition device and a data processing module a used for processing a shot image in real time, wherein the image acquisition device and the data processing module a are installed in a space formed by a protective shell and an outer cover, and the protective shell is fixedly installed on a base. The system can accurately obtain the movement position of a user, the rotation angle of the head, the height of the user and the leftward and rightward inclination, head rising and head lowering angles of the head of the user in a real space in real time, and causes the movement position of the user, the rotation angle of the head, the height of the user and the leftward and rightward inclination, head rising and head lowering angles of the head of the user in the real space to correspond to the movement, the height and the head movement of the user in virtual reality, the movement of the user in the real space keeps consistent with the movement in the virtual reality, spinning sensation is eliminated, and the real-time positioning and the head movement identification of multiple users can be realized. In addition, the positioning and movement identification system is simple in structure, low in manufacture cost and convenient in use.