Large texture haptic representation system

Abstract

The invention discloses a large texture haptic representation system which can achieve the haptic representation for large textures with the space intervals at the centimeter level or higher levels. The large texture haptic representation system comprises an interaction panel, a finger positioning device, a mechanical transmission device, a piezoelectric ceramic matrix driving device, a two-way information feedback device and a PC with a 3D display. The finger position is detected in real time through the finger positioning device, the two-way information feedback device controls the piezoelectric ceramic matrix driving device to drive the friction-force-variable texture representation interaction panel to generate high-frequency vibration, and therefore the tiny texture roughness on the surfaces of large textures is represented; by controlling the transverse movement and rotation of the friction-force-variable texture representation interaction panel through the three-freedom-degree mechanical transmission device to extrude skin and muscles of fingers, the radian of large textures is represented. The large texture haptic display system has the advantages of being high in accuracy, bandwidth and sampling frequency and low in mechanical damping and dry friction force, and meets the requirements for stability, transparency, passivity, dissipativeness and the like.

Description

technical field [0001] The invention relates to a tactile reproduction system, in particular to a large texture tactile reproduction system based on variable friction texture reproduction and extrusion arc reproduction. Background technique [0002] Object surface texture reproduction is a hotspot and difficulty in the field of tactile interaction research. It transmits the physical properties of texture to the operator by simulating the bumpy and rough feeling when in contact with the textured surface. In recent years, scholars at home and abroad have attempted to reveal the tactile mechanism of texture perception through research methods such as anatomy, imaging, compression tests, and electrophysiological tests, and have produced a large number of texture reproduction devices. But it is worth noting that the internal space gaps of the textures simulated by these devices are mostly at the millimeter level or below, which we call "fine textures". [0003] "Large texture" i...

AI Technical Summary

Problems solved by technology

In addition, the instability and small output force of the force feedback device make it unable to simulate rigid contact, and its own motion damping will also affect the authenticity of the texture feeling

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