Tactile reproduction method and device integrating electrostatic force, air pressure film and mechanical vibration

Abstract

The invention relates to a tactile reproduction method and device integrating electrostatic force, air pressure film and mechanical vibration, belonging to the field of human-computer interaction and artificial intelligence. Simultaneous tactile reproduction of contour, texture and roughness of visual objects is realized by establishing a mapping model between image gradient, curvature and height features and tactile drive signal amplitude and frequency parameters. The device for realizing tactile reproduction includes an interactive unit, a processing unit and a driving unit . The advantages are: making full use of electrostatic force tactile feedback can increase tangential friction force, air pressure film tactile feedback can reduce tangential friction force, mechanical vibration tactile feedback can provide the characteristics of normal feedback dimension, provide electrostatic force, air pressure film The tactile reproduction device integrated with mechanical vibration realizes the simultaneous expansion of the dynamic range and dimension of tactile feedback force on the touch screen, and significantly improves the authenticity and richness of tactile reproduction on the touch screen.

Description

technical field [0001] The invention relates to a tactile reproduction device and method that integrates electrostatic force, air pressure film and mechanical vibration, and belongs to the field of human-computer interaction and artificial intelligence. Background technique [0002] Smartphones and tablet computers with tactile reproduction functions have broad application prospects in medical and health care, e-commerce, education and entertainment, and visually impaired people. Through the tactile reproduction technology, the shape, texture, roughness, flexibility and other surface properties of the displayed object can be perceived by touching the multimedia terminal screen with bare fingers, which greatly improves the realism of the interaction process and the richness of the interaction experience. In tactile reproduction devices, the dynamic range and dimension of tactile feedback force and tactile perception method are two key factors that determine the realism of tac...

AI Technical Summary

Problems solved by technology

However, the above fusion technologies still face the following problems: (1) The tactile reproduction technology that combines electrostatic force and air pressure film can only change the tangential friction force on the touch screen, lacking the normal feedback dimension, while the fusion of electrostatic force and mechanical vibration Although the tactile rendering technology can provide normal feedback force, the tangential friction force on the touch screen only shows an increasing trend; (2) the existing tactile rendering method based on the fusion device can simultaneously realize the two surface attributes of the visual object at most. Tactile perception and tactile reproduction still need to be further improved

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