Method and apparatus for tactile reproduction incorporating electrostatic force, pneumatic film and mechanical vibration

Abstract

The invention relates to a tactile reproduction method and a device for fusing electrostatic force, air pressure film and mechanical vibration, belonging to the field of human-computer interaction andartificial intelligence. A map model between image gradient, curvature and height features and amplitude and frequency parameter of haptic driving signal is established to realize simultaneous hapticreproduction of visual object contour, texture and roughness, and that device for realizing haptic reproduction comprises an interactive unit, a processing unit and a driving unit. As the tactile feedback of the electrostatic force is fully utilized, the tangential friction force can be increased, the tactile feedback of air pressure film can reduce the tangential friction force, mechanical vibration haptic feedback can provide the characteristic of normal feedback dimension, and provide electrostatic force, air pressure film and mechanical vibration fusion haptic reproduction device, which can realize the dynamic range and dimension expansion of haptic feedback force on the touch screen at the same time, and significantly improve the authenticity and richness of haptic 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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