Touch representation device based on electrostatic force

Abstract

The invention relates to a touch representation device based on electrostatic force, belonging to a touch representation device. The touch representation device comprises an electrostatic force touch representation interactive screen, a finger trace tracking unit, an electrostatic force touch representation controller, a signal driving unit and a PC (Personal Computer). The finger trace tracking unit detects a finger position, and maps a touch force representation method of a visual object at the position; an electric signal parameter for representing a touch force is generated according to the corresponding relation between an electric signal and the touch force; a driving signal is output; the driving signal is amplified; and the amplified driving signal acts on the electrostatic force touch representation interactive screen to cause skin deformation of a finger so as to sense an absorption force and a repelling force, thereby realizing touch representation. The touch representation device has the advantages of low cost, high flexibility and strong applicability, and can realize the touch representation function on a small mobile terminal.

Description

technical field [0001] The invention belongs to a tactile reproduction device. Background technique [0002] Efficient and natural tactile reproduction technology can enhance the immersion and realism of virtual reality, provide a more real and direct interactive experience, and push the communication between human beings and the virtual world to a new stage. It is currently a hot spot in the field of virtual reality. The tactile reproduction technology plays an important auxiliary role in science education, industrial design, picture viewing for the blind, and telemedicine. [0003] At present, most of the tactile reproduction technologies are based on mechanical force. Typical devices include the needle-type contact array developed by Yasushi Ikei et al. in Japan, the gas pressure tactile reproduction device developed by Naoya Asamura et al. The tactile reproduction device based on the sawtooth surface developed by Nara et al. However, due to the bulky equipment, it is di...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the tactile reproduction technologies are based on mechanical force. Typical devices include the needle-type contact array developed by Yasushi Ikei et al. in Japan, the gas pressure tactile reproduction device developed by Naoya Asamura et al. The tactile reproduction device based on the sawtooth surface developed by Nara et al. However, due to the bulky equipment, it is difficult to apply and promote it in daily life. The electrostatic tactile reproduction technology is currently generally considered to be the most important way to realize the miniaturization of the tactile reproduction system. The latest technology in the field

[0004] In 2011, Ivan Poupyrev et al. disclosed a tactile reproduction interaction technology based on electric vibration in the US patent US 2011 / 0285667 A1 entitled "Electrovibration for Touch Surfaces". Reproduction of tactile sensation, introduces the working principle of tactile interactive screen, not a complete tactile reproduction device

In 2011, Kajimoto Hiroyuki et al. disclosed an electrical stimulation-based device and electrical stimulation method in the Japanese patent WO 2011 / 155089 A1 entitled "Electrical Stimulation Device and Electrical Stimulation Method", but the system is huge and complex, and it is difficult to miniaturize. poor applicability

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