Tactile reproduction system for pattern mapping

Abstract

The invention discloses a tactile reproduction system for pattern mapping, which is characterized by comprising a camera, a computer image processing system, a mapping controller, a plurality of digital / analog (D / A) converters, a plurality of power amplification circuits and a tactile reproduction device connected in turn, wherein the tactile reproduction device comprises a box body, the upper end of which is open; and the box body is partitioned into m*n spatial units by using a plurality of partition boards, a piezoelectric executor and an output driving block are arranged in each spatial unit, the bottom surface of the output driving block is tightly jointed with the top of the piezoelectric executor, an elastic resetting mechanism is arranged between the output driving block and the box body, and the power amplification circuits are electrically connected with the piezoelectric executors. The tactile reproduction system has the advantages that: patterns of visual cognition and the like can be converted into tactile perception through the system; the piezoelectric executors for outputting displacement in the tactile reproduction device have high response speed, accurate displacement and good low-frequency property; and because a sleeve is sleeved outside a spring and when the spring is compressed, bending deformation of the spring can be prevented to ensure accurate displacement of the output driving blocks.

Description

technical field [0001] The invention relates to a system capable of converting external patterns for visual cognition into tactile perception, in particular to a tactile reproduction system for pattern mapping. Background technique [0002] For us normal people, the world we live in is colorful and colorful, but for the blind, his world is dark, and he cannot see anything or any color, which brings great joy to his life. Big inconvenience. In schools for the disabled, there is a kind of literacy cards specially designed for the blind. The blind can recognize words and learn knowledge by touching these literacy cards. Signs, such as stop signs, road signs, guide signs, etc. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a tactile reproduction system for pattern mapping that can convert patterns used for visual cognition in daily life into tactile perception to facilitate blind people. [0004] The technical s...

AI Technical Summary

Problems solved by technology

[0002] For us normal people, the world we live in is colorful and colorful, but for the blind, his world is dark, and he cannot see anything or any color, which brings great joy to his life. big inconvenience

In schools for the disabled, there is a kind of literacy cards specially designed for the blind. The blind can recognize words and learn knowledge by touching these literacy cards. Signs, such as stop signs, road signs, guide signs, etc.

Images