A Pneumatic Simulation Method for Realistic Haptics in Physical Human-Computer Interaction

Abstract

The invention relates to a pneumatic simulation method for a real touch sense in physical man-machine interaction. Silica gel layers with large elastic moduli, which can be tightly attached to the skin are used as bottom layers; a small airbag is fixed in a related specific position between the elastically deformable silica gel layers; the airbag can be quickly inflated or deflated through an airpipe through a high-pressure gas, so that a touch pressure sensed in a desired target position can be obtained; and meanwhile, the pressure intensity on the surface of the skin due to inflation of theairbag at the moment is measured through a flexible pressure sensor fixed to the airbag, and is compared with the pressure intensity on a human body in the position under current real condition to feed back and adjust the air inflation volume and speed of the airbag to enable the sensed pressure intensity to reach target pressure intensity, so that the real touch sense is simulated, and the effect of realizing physical man-machine interaction is achieved.

Description

technical field [0001] The invention relates to the field of human-computer interaction, and is a method for simulating the real touch felt by a human body, specifically a method for pneumatically simulating the real touch. Background technique [0002] At present, technologies such as human-computer interaction have been gradually applied in various fields such as aircraft assembly and manufacturing, intelligent design, and virtual reality. In the process of virtual reality, its main purpose is to give users a more realistic virtual experience, among which the virtual sense of touch is very important, and the degree of virtual reality depends on the touch and pressure felt by the user's skin. Theoretically speaking, tactile information can be obtained according to the theoretical model during tactile simulation, but because the vibration motor cannot generate force and displacement due to resistance, the contact part often does not feel the real resistance, but only can gen...

AI Technical Summary

Problems solved by technology

Theoretically speaking, tactile information can be obtained according to the theoretical model during tactile simulation, but because the vibration motor cannot generate force and displacement due to resistance, the contact part often does not feel the real resistance, but only can generate Specific haptics can lead to an unrealistic use experience

[0003] Some existing devices provide tactile simulation functions for virtual reality, which can only provide different high-frequency vibrations to make people feel the corresponding tactile sensation, and it is difficult to guarantee a real tactile experience; at the same time, the current virtual tactile devices generally have large volume, Disadvantages of inflexibility; and higher requirements for equipment

[0004] Compared with the utility model patent "A VR Glove" (Application No.: 201720760542.8), this patent uses a hydraulic method for tactile simulation, which has made up for the lack of force feedback compared with vibration motors, but it still has its own advantages. The frequency response is slow, the maneuverability is not good enough, and the liquid itself such as oil or water has a high density, which will make the user feel the influence of gravity of the medium itself, which seriously affects the user's experience and tactile authenticity.

At the same time, this kind of medium itself has a large heat capacity, and when it contacts the skin and other sensory organs, it will quickly take away the heat of the skin, etc., which will also affect the user's experience and authenticity.

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