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Self-driven intelligent braille system and braille book preparation method

A self-driven, Braille technology, applied in teaching aids, educational aids, instruments, etc., can solve the problems of high cost, complex structure, restricted use of blind groups, etc., achieving low cost, high sensitivity, and reducing the pressure of learning and teaching assistance.

Active Publication Date: 2021-08-03
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the emergence of a series of information products such as screen reading software and braille displays has surpassed the limitations of paper, its use by the blind group is limited due to its complex structure, high cost, and cost of tens of thousands of yuan.

Method used

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  • Self-driven intelligent braille system and braille book preparation method
  • Self-driven intelligent braille system and braille book preparation method
  • Self-driven intelligent braille system and braille book preparation method

Examples

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preparation example Construction

[0057] Correspondingly, the embodiment of the present invention also provides a kind of braille book preparation method, such as Figure 7 Shown, described braille book preparation method comprises the following steps:

[0058] Preparation of Braille raised material;

[0059] The braille raised material is placed on the paper substrate by electrospinning the hollow template.

[0060] Further, the step of preparing Braille raised material comprises:

[0061] Mix acetone and N-methylpyrrolidone according to the ratio of 1:1 to 1:8, then add 0-20 parts of 2000-3000 mesh PVDF powder, place it at 50-80°C and stir until the solution is clear and transparent, add 0 - 5 parts propylene glycol coloring mix;

[0062] Add 1,000-2,000-mesh perfluoroethylene-propylene copolymer to the prepared above-mentioned solution with a mass fraction of 0-30 parts, stir magnetically at 60-100°C for 7-10 hours, and cool to room temperature.

[0063] Further, the step of placing the braille raised m...

Embodiment approach

[0067] As a preferred embodiment of the present invention, the step of preparing Braille raised material comprises:

[0068] Mix and stir acetone and N-methylpyrrolidone according to the ratio of 1:1, then add 10 parts of 2000 mesh PVDF powder, place it at 80°C and stir until the solution is clear and transparent, add 5 parts of propylene glycol pigment and mix; Ethylene propylene copolymer is added to the prepared above solution, the mass fraction is 30 parts; it is magnetically stirred at 60-100° C. for 7-10 hours and cooled to room temperature.

[0069] The steps of placing the braille raised material on the paper substrate by electrospinning the hollow template include:

[0070] Put the hollow template on the paper base, apply acrylic paint to the hollow gap, and dry it in a blast drying oven at 100°C for 3 hours; place the paper base with the adhesive pattern on the electrospinning platform, and stack the thickness 0-20mm hollow template for electrospinning, the specific...

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Abstract

The invention provides a self-driven intelligent Braille system and a method for preparing a Braille book. The self-driven intelligent Braille system includes a Braille book module and a sliding reading ring module. The Braille book module includes a paper base and a Braille-shaped Electrostatic layer, the braille-like electrostatic layer carries text information; the sliding reading ring module includes a signal excitation part and a signal processing part, and the signal excitation part is provided with electrodes, which are used to generate electrostatic signals containing text information when sliding relative to the braille book module, and The static signal is transmitted to the signal processing part, and the signal processing part is used to convert the static signal into a voice signal for playback. The invention uses electrostatic electrification and electrostatic induction effects to convert the mechanical energy of hand movement into electrostatic electrical signals of Braille information, and transmits text information to blind people with extremely sensitive hearing in the form of voice, providing an intelligent learning system without threshold.

Description

technical field [0001] The invention relates to the fields of micro-nano sensing technology and special education, in particular to a self-driven intelligent Braille system and a method for preparing Braille books. Background technique [0002] According to statistics, there are currently about 285 million visually impaired people in the world, and China is the country with the largest number of blind people in the world, accounting for 18% of the total number of blind people in the world. Knowledge is not only an important factor for the development of the times, but also an important factor for blind people to pursue new development. It is still the main way for blind people to acquire knowledge through reading Braille books to understand the world around them, but the penetration rate of Braille in my country is less than 10%. Due to the scarcity of professional Braille educators and the professionalism of the publication of Braille books, there is only one Braille book ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B21/00
CPCG09B21/007
Inventor 张跃薛凌方廖庆亮
Owner UNIV OF SCI & TECH BEIJING
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