Electrostatic force touch rendering method based on physiological and physical modeling

Abstract

The invention provides an electrostatic force touch rendering method based on physiological and physical modeling, and belongs to the field of virtual reality and human-computer interaction. The method includes: determining a first speed, a first normal force and a first tangential force of the finger scratching the surface of the real material; determining a second speed and a second normal forceof the finger scratching the surface of the electrostatic force tactile representation device; carrying out model training by utilizing an artificial intelligence algorithm, and determining a physiological and physical mapping relationship f (t); determining a driving tangential force according to the second speed, the second normal force and the physiological and physical mapping relationship f(t); and determining an excitation signal transient voltage V (t) applied by the electrostatic force tactile representation device to render the real material according to the driving tangential force. According to the invention, the physiological and physical mapping relationship and the mapping relationship between the tangential force of the finger scratching the tactile representation device and the excitation signal are established, and the texture rendering of a real material is presented on the tactile representation device. The method is free of operation constraints and high in universality and expandability.

Description

technical field [0001] The invention relates to the fields of virtual reality and human-computer interaction, and in particular to an electrostatic force tactile rendering method based on physiological physical modeling. Background technique [0002] Haptic reproduction is a cutting-edge technology in the field of human-computer interaction and virtual reality, which can provide people with a better immersive experience. Compared with traditional vision and hearing, haptics pay more attention to human-computer interaction. Among them, electrostatic tactile reproduction technology is currently the research hotspot and focus of international tactile reproduction, and has broad development prospects in the fields of education, teaching, commercial display, medical treatment and entertainment. [0003] The electrostatic force tactile reproduction technology is mainly based on Coulomb's law, using the principle of electrostatic force attraction to provide tactile experience by ad...

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: in the existing tactile rendering algorithms for electrostatic force tactile reproduction devices, the rendering algorithm based on physical modeling needs to establish an accurate rendering algorithm for a specific reproduction device. Mathematical model, with a large amount of calculation, and the rendering effect is not ideal due to the over-simplification of the physical model

Based on the data-driven rendering algorithm, the existing method does not establish a universal relationship between physical touch and tactile sensation, that is, the physiological physical model, which is limited to the experimental data itself for rendering, and most of the rendering methods are based on restricting fingers. The contact conditions with the touch screen are not good, and the rendering ability of the rendering algorithm is often limited by the experimental data itself, which does not have versatility and scalability

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