33results about How to "Not easy to cause visual fatigue" patented technology

The invention provides an efficient brain-controlled Chinese input method based on a movement vision evoked potential. The method in which a pronunciation and pattern two-step spelling method is adopted, Chinese characters are input in two steps, and meanwhile, the steady state movement vision evoked potential serves as a brain-machine interface is designed, when the method is used, an electrode is placed on the head of a user first, after the user accepts the movement vision simulation of an interactive interface, an electroencephalogram response is induced, the electroencephalogram response is processed through the electrode and an electroencephalogram collection module, and an electroencephalogram signal is obtained; after the electroencephalogram signal is received by a data processing and control module, an identification result is obtained through analysis, and a user interface is controlled to display the corresponding characters. By means of the method, the operation steps and time can be obviously reduced, the operation is simple and convenient, the user is comfortable to use, the efficient brain-controlled input of the Chinese characters under a large character library is achieved, a dyskinesia patient can be assisted in life communication, and the method has good practical prospects.

The invention relates to an electronic ink screen panel, comprising a control panel arranged on a household appliance; the control module is an electronic ink screen, and is provided with a control function area used for completing screen drive and display as well as information processing, a storage function area used for storing the function realization, position and display form of an original key, and a transmission module used for realizing wireless transmission of information; the control panel is connected with an intelligent terminal by the transmission module in a communication way. The electronic ink screen is used as the control panel of the household appliance, and has the characteristics of being low in power consumption, free from flicker during display and the like, thus meeting the requirements of the control panel; due to the characteristics of the screen, key functions, key layout and the like of the control panel can be modified by means of a certain technical scheme. Furthermore, the key functions and the key layout on the control panel can be set and modified by a user according to the use habit, so that a brand-new experience is brought to the user.

The embodiment of the invention provides a human-computer interaction method, a human-computer interaction device and a storage medium, and the method comprises the steps: displaying a human-computer interaction interface which comprises at least one operation command display area and at least one visual stimulation area, at least one visual stimulation region in the at least one visual stimulation region comprises at least two visual stimulation sub-regions, and any visual stimulation sub-region in the at least two visual stimulation sub-regions is asymmetric about a horizontal axis or a longitudinal axis of a coordinate system; and executing an operation command, the operation command being determined according to an electroencephalogram signal of a user, and the electroencephalogram signal of the user being generated by the user aiming at a stimulation signal displayed by the at least one visual stimulation area. According to the method and the device, the brain visual cortex generates asymmetric characteristics of the electroencephalogram signals at the spatial position of visual stimulation, so that the decoding accuracy and the decoding efficiency are improved.

The invention belongs to the technical field of medical equipment and particularly discloses a simulation mechanical arm type medical magnifying glass system. The simulation manipulator type medical magnifying glass system comprises a magnifying glass, a mechanical arm and a trolley, wherein the mechanical arm is movably connected to the trolley in a removable manner; the magnifying glass is movably connected to the mechanical arm in a removable manner; mutually-matched bayonets are respectively formed between the magnifying glass and the mechanical arm and between the trolley and the mechanical arm. The magnifying glass system disclosed by the invention has the benefits that the magnifying glass can freely move in the horizontal and vertical directions, so that the magnification is accurately adjusted, and accurate positioning is realized; the magnifying glass can also flexibly move in the non-surgical and surgical processes as required, so that a performer is not required to be within the visual field of the magnifying glass for a long time, and the vision fatigue is difficultly caused; in addition, the magnifying glass system can be controlled by not only adopting a manual control mode, but also adopting a sensor-based voice control, remote control and pedal type electronic automatic control mode, or by combining the electronic automatic control mode and the manual control mode.

The invention discloses a detection method of an LED (light-emitting diode) lamp array. The detection method comprises the following steps: S1) determining the possibility of continuous welding on a driving chip; S2) determining associated pins of each LED; S3) selecting one LED from the LEDs with the maximum number of the associated pins as the LED for detection; S4) selecting one LED from the LEDs with the maximum number of the associated pins which are not repeated with the associated pins of all the selected LEDs for detection; S5) repeatedly implementing the step S4) till the possibility of continuous welding of all the selected LEDs for detection covers all the possibility of the continuous welding, which is determined in the S1); S6) turning on all the LEDs and judging whether all the LEDs are normally turned on or not; and S7) only turning on all the LEDs for detection and judging whether only the LEDs for detection in the LED lamp array are turned on or not. According to the detection method disclosed by the invention, effective detection on poor continuous welding can be realized by 100%, the test speed is very fast, and the detection method is less prone to causing visual fatigue of test staff.

The invention discloses a wheelchair brainwave control device. The device comprises a stimulus source, a brainwave signal obtaining device, a computer, a data processor and a wheelchair control circuit. The invention further discloses a wheelchair brainwave control method. The method comprises the following steps of 1, obtaining and uploading of brainwave signals, 2, calculation of brainwave frequency values; 3, judgment of control information; 4, output of the control information; 5, execution of the control information; 6, analysis and processing of next brainwave frequency values. A color flickering vision stimulator is adopted, the distinguishing rate induced by brainwave signals is increased, each color flicking block alternately flickers with two flickering frequencies, the monotony of the stimulus source is avoided, a golden section method is adopted to divide a sampling period, the effectiveness of brainwave inducing is guaranteed, a DB4 wavelet function of which the Vanishing matrix order is 4 is adopted to conduct wavelet packet decomposition on the brainwave signals, the interference information is inhibited, the accuracy of brainwave control is improved, and convenience is brought to specific disabled people.

A capacitive touch panel comprising in sequence a first transparent insulating layer, a first transparent conductive material layer containing X-axis traces, a second transparent insulating layer, a second transparent conductive material layer containing Y-axis traces, and a third transparent The insulating layer, the X-axis trace has a first trace contact, and the Y-axis trace has a second trace contact. A transparent alignment layer, the second transparent alignment layer is arranged between the second transparent insulating layer and the second transparent conductive material layer containing Y-axis traces, and the second transparent insulating layer is composed of liquid crystal. The present invention also provides a manufacturing method of the capacitive touch panel. The invention can realize the two-dimensional positioning function, and its second transparent insulating layer is equivalent to a wave plate, which can make the linearly polarized light incident on the touch panel become circularly polarized light or elliptically polarized light after passing through the touch panel, It can overcome the blind zone phenomenon existing in some specific application occasions.

The invention discloses a light energy writing device comprising a flexible substrate, a transparent conductive layer, a composite layer, a conductive layer, a flexible substrate conductive layer anda hard object support layer, which are sequentially arranged, wherein the composite layer is composed of bistable cholesteric liquid crystal and cured polymer alternately arranged; the flexible substrate is located at the uppermost layer, and the flexible substrate is closely connected to the transparent conductive layer located in the second upper layer; the composite layer is set in the intermediate layer, and is upwardly bonded to the bottom surface of the transparent conductive layer, and downwardly bonded to the upper surface of the conductive layer; the lower surface of the conductive layer is closely connected to the conductive layer of the flexible substrate, and the lower surface of the conductive layer of the flexible substrate is bonded to the hard object support layer. The light energy blackboard provided by the invention can be written by any hard object, has high brightness and low energy consumption, is green and healthy and not easy to cause visual fatigue, can save a large amount of electric energy, has strong practicability, and is worthy of promotion.

The invention belongs to the technical field of papermaking and particularly discloses a production process of myopia prevention paper. The production process comprises the following steps: (1) preparing raw materials; (2) preparing pulp by treating straws and reeds to obtain first pulp and treating wood and cluster bamboo to obtain second pulp; (3) mixing and pulping; (4) preparing mixed liquid;(5) adding filler by mixing and stirring silica micropowder, talcum powder and Dongsheng soil to obtain a mixed filler, adding the mixed liquid into the mixed filler, stirring to obtain a mixed material, adding the mixed material into the pulping liquid, stirring, heating the liquid in the stirring process, and stopping heating when the temperature of the liquid is heated to 78-84 DEG C to obtainpapermaking pulp; (6) drying; (7) calendering; and (8) coiling. The paper produced by the technical scheme has a myopia prevention effect; meanwhile, the produced paper has good properties of strength, smoothness, printing adaptability and the like.

The invention provides a fusion detection method of infrared image and visible light image based on a visual attention model. The fusion detection method comprises the steps that pretreatment is conducted respectively on the collected infrared image and visible light image; based on the visual attention model of human eyes, an interested object can be extracted from the infrared image and the visible light image after pretreatment; with the visible light image after pretreatment being the background, the corresponding infrared image after pretreatment and the visible light image being the background undergo gray-scale image fusion, obtaining a gray-scale fusion image; the gray-scale fusion image undergoes pseudo color mapping marking of the interested object, obtaining and outputting the target pseudo color fusion image. The invention is advantageous in that the problem that the interested object in the prior art is weakened in the fusion image can be resolved, the accuracy and reliability of detection and identification of the interested object can be greatly improved; the difficulty of object identification can be reduced.

The invention provides an efficient brain-controlled Chinese input method based on a movement vision evoked potential. The method in which a pronunciation and pattern two-step spelling method is adopted, Chinese characters are input in two steps, and meanwhile, the steady state movement vision evoked potential serves as a brain-machine interface is designed, when the method is used, an electrode is placed on the head of a user first, after the user accepts the movement vision simulation of an interactive interface, an electroencephalogram response is induced, the electroencephalogram response is processed through the electrode and an electroencephalogram collection module, and an electroencephalogram signal is obtained; after the electroencephalogram signal is received by a data processing and control module, an identification result is obtained through analysis, and a user interface is controlled to display the corresponding characters. By means of the method, the operation steps and time can be obviously reduced, the operation is simple and convenient, the user is comfortable to use, the efficient brain-controlled input of the Chinese characters under a large character library is achieved, a dyskinesia patient can be assisted in life communication, and the method has good practical prospects.

The invention discloses a visual motion evoked brain-controlled lower limb active and passive cooperative rehabilitation training system, which comprises a visual stimulation module, wherein the output of the visual stimulation module is connected to the first input of an electroencephalogram signal acquisition module; the second input of the electroencephalogram signal acquisition module is connected to the output of a lower limb rehabilitation training module; the output of the electroencephalogram signal acquisition module is connected to the input of a computer which is provided with an active and passive cooperative control module; the first output of the computer which is provided with the active and passive cooperative control module is connected to the input of the visual stimulation module; and the second output of the computer which is provided with the active and passive cooperative control module is connected to the input of the lower limb rehabilitation training module; active stimulation on motion control nerves and passive stimulation on motion perception nerves are achieved, and a closed-loop nerve bypass is established so as to promote neural reorganization and reconstruction; and meanwhile, the rehabilitation training is completed on the basis of the full development of patient's subjective desire, and the interesting of the rehabilitation training is enhanced, so that patient's initiative is mobilized.

A method based on auditory cognitive neural signals for autonomously expressing willingness relates to the fields of the assistance to the disabled, and the human-computer interaction. The method is characterized in that the method comprises the following steps: inputting the required willingness code book into a computer, wherein, a speech index is short Chinese and English, or digital speech, and an index content is the speech on completely expressing willingness; arranging an EEG detect electrode at a posterior position of the top of the head of a user; using a computer to repeatedly play a voice sequence consisting of codebook index speech in a random order; noticeably choosing the index speech corresponding with the target willingness should and conducting the identification of soundproperties; using an EEG amplifier to record brain waves; aligning the brain waveforms in a segmenting manner according to the time starts of the index speech; detecting whether the late positive components (LPC) and the relevant characteristic waveforms exists or not; defining brain waves which has characteristic waveforms as a target index, tracking down the corresponding the index content through the willingness codebook; and playing the corresponding speech expressing willingness through an audible device.

The invention provides a method for manufacturing a multi-focus glasses lens and multi-focus glasses, and the method comprises the steps: carrying out the shooting of N groups of light on the same grating recording material, obtaining a grating element with a plurality of optical focuses, for example, the grating element can be HOE or DOE; manufacturing a multi-focus spectacle lens by using the grating element; wherein each group of light in the N groups of light comprises object light and reference light, the object light in different groups corresponds to the myopia degree or the hyperopia degree (namely the diopter) of the user, the reference light in different groups corresponds to different preset watching distances, and each group of light corresponds to one focus or one diopter. According to the method for manufacturing the multi-focus glasses lens, the multi-focus glasses lens is manufactured based on the grating element technology of angle multiplexing, controllable step change of the diopter of the lens is achieved, the multi-focus glasses lens with a smaller step change range is achieved, and the use efficiency and the user experience of the multi-focus glasses are improved.

The invention discloses a production process of anti-myopia paper and relates to the field of papermaking. It comprises the following steps: step 1, preparing waste tissue paper deinked pulp, coniferous wood pulp and wheat straw pulp respectively; step 2, mixing waste tissue paper deinked pulp, coniferous wood pulp and wheat straw pulp evenly to obtain a mixed pulp, the percentage by weight of the three is: waste thin paper deinked pulp 55-65%, coniferous wood pulp 10-15%, wheat straw pulp to make up to 100%; step 3, the mixed pulp obtained is screened through a pressure sieve , and then use a fiber separator to separate the fibers of the mixed pulp, control the fiber purity to be greater than 95%, and the impurity removal rate to be greater than 95%; step 4, add alkaline bright yellow, lemon yellow and sun-fast yellow to the separated fiber slurry, and mix uniform to obtain a colored slurry; Step 5, adding papermaking additives to the colored slurry, and sending it into a paper machine for papermaking, dehydration, and drying to obtain anti-myopia paper. The anti-myopia paper made by the invention has better anti-myopia effect.

The invention discloses an amplification display device and an amplification display system, and relates to the technical field of displaying. The amplification display device comprises an upper support where an electronic display device is placed, a lower support and a transmission reflection device arranged between the upper support and the lower support, wherein an included angle smaller than 90 degrees is formed between the upper support and the transmission reflection device, and the transmission reflection device amplifies and displays images of the electronic display device. A watcher in front of the transmission reflection device can see a displayed image which has no frame limitation and is combined with the surrounding environment in the real world by means of the arranged transmission reflection device, the watching effect that the watcher is personally on the scene is achieved, and the watching experience of the user is well improved. In addition, the transmission reflection device is not provided with frames, can achieve the effect of a frame-free transparent display screen, and does not cause visual fatigue easily, and the amplification display device is simple in manufacturing process, low in cost and is industrialized easily.

The invention discloses a magnification display device and system, and relates to the technical field of displaying. The magnification display device comprises a supporting body and a transmission and reflection device, wherein the supporting body is used for placing an electronic display device, the supporting body and the transmission and reflection device are connected with the included angle being smaller than 90 degrees, and the transmission and reflection device performs a magnification display on images of the electronic display device. As the transmission and reflection device is arranged, a watcher in front of the transmission and reflection device can see a real-world display frame which is free of border restrictions and capable of being merged with an ambient environment, an immersive watching effect can be presented for the watcher, and the watching experience of the user can be well improved. In addition, because the transmission and reflection device is not provided with a border, the effect of a borderless transparent display screen can be produced, and visual fatigue cannot be easily caused. Besides, the magnification display device is simple in manufacturing process, low in cost and easy to productize.

The present invention provides one kind of computer keyboard with bamboo casing and its making process. The computer keyboard has the advantages of being environment friendly, easy to clean and low in cost and produces natural feeling. The making process includes splitting bamboo, sterilizing and killing pest, pressing into bamboo plate, adhering or carving to form the outer frame of keyboard in the required size, cutting the bamboo plate into back cover plate of keyboard, mounting the buttons and electronic elements, and connecting to form the keyboard. The present invention has low cost and flexible keyboard appearance.

An amblyopia electroencephalogram objective and quantitative detection method includes: realizing dichoptic viewing, designing a visual evoked stimulation pattern, setting up a brain-computer interface platform, testing an interaction interface, determining amblyopia electroencephalogram quantitative index, using inhibiting coefficient SI to describe a binocular inhibiting relation so as to quantify amblyopia degree, and feeding back an amblyopia detection result, wherein a computer interaction interface module presents the final amblyopia detection result to realize feedback to a user. The method is simple and quick in operation, high in suitability and objective and quantitative in index.