Self-repairing and self-energizing braille recognition sensing system and preparation method

Abstract

The invention relates to the technical field of sensors, in particular to a self-repairing and self-energizing braille recognition sensing system and a preparation method. The invention provides a self-repairing and self-energizing braille recognition sensing system, and the system comprises a sensor array which is used for detecting braille characters, converting the mechanical stimulation of the sensor array into an electric signal, and transmitting the electric signal to a collection circuit, and the sensor array comprises a plurality of self-repairing and self-energizing sensors; the acquisition circuit is used for processing and analyzing the received electric signal, generating identification information and sending the identification information to the feedback terminal; the feedback terminal is used for converting the received identification information into a perceptible signal and outputting the perceptible signal; wherein the self-repairing and self-energizing sensor comprises a top dielectric layer, an electrode layer and a bottom dielectric layer which are sequentially arranged from top to bottom; each of the top dielectric layer and the bottom dielectric layer comprises an elastomer, and the electrode layer comprises a conductive material; the problems that in the prior art, a braille recognition sensor needs to be driven by an external power source, the service life is limited, and reliability is low are solved.

Description

technical field [0001] The present application relates to the technical field of sensors, in particular to a self-repairing and self-powered Braille recognition sensing system and a preparation method. Background technique [0002] For the visually impaired and blind, there is a special Braille system to help them access information, communicate and learn. Among them, Braille is a kind of raised dot characters specially designed for them, which can be sensed by finger touch. During the early stages of learning Braille, visually impaired and blind people use electronic devices to improve their reading skills. To assist them in reading, piezoresistive and capacitive braille sensors have been developed. However, such sensors need to be driven by an external power source, and conventional power sources such as batteries and capacitors have limited capacity and service life, and may pollute the environment. [0003] At the same time, this type of sensor may be affected by mech...

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Problems solved by technology

[0005] This application provides a self-repairing self-powered braille recognition sensing system and its preparation method, based on the self-repairing sensing technology and adopting a self-repairing material system to prepare a self-repairing self-powering sensor array, so as to solve the problem that the braille recognition sensor in the prior art requires an external power supply Drivers, limited service life, low reliability, etc.

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