Wide friction-control haptic display device and display method based on same

Abstract

The invention discloses a wide friction-control haptic display device and a display method based on the same. The wide friction-control haptic display device comprises a haptic display module, a piezoelectric ceramic module for excitation signal generating, an electrode array module for excitation signal generating, an electromagnet array module for excitation signal generating, a finger position detection module, permanent magnets attached to the backs of fingers of an operator, and a central control module. The haptic display module comprises a haptic panel, a transparent electrode array module, a piezoelectric ceramic array module, an electromagnet array module, a display module and a shell. Three principles, namely air pressure membrane effect, electro-vibratory effect and electromagnetic force control, are combined, increase and decrease in the friction between the fingers of the operator and the haptic display module are adjusted in a bidirectional wide range, and high-performance haptic display is achieved. The wide friction-control haptic display device is capable of sensing in multiple modes and is of great practical value.

Description

technical field [0001] The invention relates to the field of human-computer interaction of tactile reproduction, in particular to a device and method for controlling tactile reproduction with wide-width friction force. Background technique [0002] Among the human perception systems such as vision, hearing, smell, taste and force touch, force touch provides a two-way information exchange channel between humans and the environment, forming various active behaviors that cannot be realized by other sensory systems (such as touch perception). objects, manipulating tools and exploring the environment, etc.), and thus have a unique importance. At present, tactile reproduction technologies mainly include: vibration-based tactile reproduction, force feedback device-based tactile reproduction, array-based tactile reproduction, etc. [0003] Vibration-based information representation is a commonly used mode of tactile reproduction. Various vibrotactile actuators provide a solution f...

AI Technical Summary

Problems solved by technology

However, this method also has certain disadvantages: limited operating range, bulky, expensive, inherent and system stability of the equipment can easily affect the tactile reproduction performance, etc.

The advantage of the array tactile reproduction system is that it is more intuitive and can actively apply tactile stimulation to the operator, but it also has certain limitations: limited by the technology and technology level, high power consumption and cost, and difficult to miniaturize, etc.

The electrode array used in this tactile interface is not easy to process, and the adjustment range of the coefficient of friction is not wide enough

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