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A method and device for tactile reproduction of foot terrain based on sound-touch conversion

A tactile reproduction, tactile technology, applied in mechanical mode conversion, graphic reading, computer parts and other directions, can solve problems such as conversion models that are difficult to provide perceptual meaning, insufficient vibration and tactile feedback, affecting user immersion, etc., to increase immersion. Sensation and realism, low cost, wide application range

Active Publication Date: 2021-10-29
JILIN UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, this signal-level conversion method lacks semantics, which makes it difficult to provide a perceptually meaningful conversion model, often resulting in insufficient vibro-tactile feedback, thereby affecting the user's sense of immersion.

Method used

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  • A method and device for tactile reproduction of foot terrain based on sound-touch conversion
  • A method and device for tactile reproduction of foot terrain based on sound-touch conversion
  • A method and device for tactile reproduction of foot terrain based on sound-touch conversion

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Experimental program
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Effect test

Embodiment Construction

[0066] Include the following steps:

[0067] (1) Adopt multi-motor foot tactile feedback device;

[0068] (2)) Obtain the magnitude of the user's stepping pressure on the ground in real time, and transmit it to the core processor to control the generation of the driving signal;

[0069] (3) Calculate different tactile drive signals according to the sound-touch conversion tactile rendering method;

[0070] (4) Vibration tactile feedback will be provided during the process of the user stepping on the ground, making it feel like stepping on the rendered type of ground.

[0071] Such as figure 1 As shown, a multi-motor foot tactile feedback device includes:

[0072] (1) The heel film pressure sensor 1 and the sole film pressure sensor 2 can detect the user's walking state in real time, and control the heel vibration tactile motor 3 and sole vibration tactile motor 4 to provide vibration tactile feedback. According to walking mechanics, during walking, when only the heel is on ...

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Abstract

The invention relates to a foot terrain tactile reproduction method and device based on sound-touch conversion, belonging to the field of virtual reality and human-computer interaction. A multi-motor foot tactile feedback device is used; the pressure of the user stepping on the ground is obtained in real time, and it is sent to the core processor to control the generation of the drive signal; different tactile drive signals are calculated according to the sound-touch conversion tactile rendering method; Stepping on the ground provides vibrotactile feedback, making it feel like you're stepping on the type of ground you're rendering. The advantage is that the selection of the vibration motor and the location of the stimulation are in line with the physiological perception characteristics of the human body. At the same time, the Stevens cross-sensory channel matching model is used, combined with the basis of human tactile perception and the input and output characteristics of the vibration motor for sound-touch conversion. It provides a more realistic tactile effect of stepping on different types of ground, which greatly increases the user's sense of immersion and realism in VR interaction.

Description

technical field [0001] The invention belongs to the field of virtual reality and human-computer interaction, and in particular relates to a method and device for tactile reproduction of foot topography based on sound-touch conversion. Background technique [0002] With the rise of tactile reproduction technology, more and more tactile devices are used in entertainment, medical, education and other fields. Especially with the emergence of high-precision tracking systems for VR devices today, users demand more dynamic and comprehensive physical activities in a complete, room-scale virtual reality space. Walking is the most natural way for people to interact in their daily interactions. A foot tactile feedback device that can present detailed characteristics of the ground not only allows people to experience the touch of stepping on the real ground in virtual reality, but also greatly enhances the sense of reality and immersion. In addition, it can also be used in medical trea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/01A61B5/00A61B5/103
CPCA61B5/1038A61B5/6829G06F3/011G06F3/016G06F2203/012
Inventor 孙晓颖孟振驰刘佳林刘璐
Owner JILIN UNIV
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