Touch visual-text display device based on jet technique and its display method

Abstract

The invention is in use for providing device and method of graphics text information for crowd of visual disturbance. In the device, mouse, keyboard or pick-up head through series-parallel ports or USB port are connected to computer. Through mouse, keyboard or pick-up head, operator selects expectant graphics text. Through series-parallel ports or USB port, signal of graphics text output from computer is connected to a haptic stimulus device of jet flow. Through control cable, output signal of the haptic stimulus device of jet flow is connected to haptic display of jet flow. Finally, information of graphics text in haptic mode of jet flow acts on skin surface of operator. The operator obtains knowledge and haptic cognition about surrounding environment. Using confluent characters of pressure-temperature of jet flow stimulus, the invention can provide haptic display of heat sensation or information of color graphics text.

Description

technical field [0001] The invention relates to a device for providing graphic and text information for blind people, amblyopia and other visually impaired people, especially a fluidic tactile display system and device for providing real and effective graphic and text information for blind people, amblyopia and other visually impaired people by means of jet tactile technology . Background technique [0002] The living conditions and quality of life of blind and partially sighted people reflect the conscience of society and the level of technological development, and are also related to the harmonious and healthy development of society. Restoring the visual ability of the blind and the elderly with amblyopia, realizing self-care, improving the quality of life and integrating into daily social life without hindrance can not only reduce the social burden, but also the real inner appeal of the blind and the amblyopia and the obligatory duty of the national government Responsibi...

AI Technical Summary

Problems solved by technology

The biggest disadvantage of pneumatic tactile stimulation is that its bandwidth is small, about 10Hz; (2) Vibration stimulation

The disadvantage of vibrating tactile stimulation is that the structure is complex and inconvenient to install or hinder the normal movement of fingers. In addition, the energy conversion efficiency of vibratory tactile feedback is low, which can easily cause excessive heat and pain, and the noise is relatively large when vibrating at high frequency; ( 3) neuromuscular stimulation

However, because the electric tactile sense uses electric current to directly act on the human body, and the voltage is as high as plus or minus 70V, many subjects are nervous and worried, which will affect the tactile effect of electric stimulation and increase the difficulty of tactile display

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