Tactile Display with Tongue Coating Chip and Needle

Abstract

The invention relates to a tongue coating type plate and needle combined tactile display. A plate array device and a needle array device are overlapped to form the tongue coating type plate and needle combined tactile display. The plate array device is used for stimulating smooth tactility, the needle array device is used for stimulating rough tactility, the plate array device comprises upright columns, piezoelectric torsional vibration exciters and a plurality of tuning forks, tangentially polarized piezoelectric ceramic crystal piles are used as cores of the piezoelectric torsional vibration exciters, and the piezoelectric torsional vibration exciters are fixed to the lower ends of the upright columns and are fixed onto a base; the tuning forks form an upper plate array and a lower plate array, and are fixedly suspended on the upright columns via single arms; the needle array device comprises voice coil motors, a needle array mounting plate and needle bars with ball heads, and the needle bars with the ball heads are symmetrically arrayed on the upper side and the lower side of the needle array mounting plate to form an upper needle array and a lower needle array; one end of the needle array mounting plate is fixed onto output shafts of the two voice coil motors, each row of the needle arrays on the needle array mounting plate is arranged among plates of the corresponding plate array, and the voice coil motors are fixed onto the base. The tongue coating type plate and needle combined tactile display has the advantages that the tactile display is small in size and simple in structure, the tactile area is maximized, and rich vibration mode combinations are provided to the greatest extent.

Description

technical field [0001] The invention belongs to the technical field of tactile reproduction in the field of virtual reality and remote information interaction, and in particular relates to a tactile display with a tongue-coat type sheet-needle combination. Background technique [0002] The rapid development of information technology has made people's information acquisition and information interaction more and more convenient. Tactile information is a very important sensory information for people to feel nature. At present, it is still difficult for human beings to achieve rich and realistic tactile reproduction and interaction. Tactile reproduction technology is an important part of computer and network human-machine interface technology, and the perception of surface roughness and texture plays a major role in human tactile experience. In order to simulate the surface roughness and texture of objects, the tactile reproduction devices so far include needle array, electric s...

AI Technical Summary

Problems solved by technology

[0002] The rapid development of information technology has made people's information acquisition and information interaction more and more convenient. Tactile information is a very important sensory information for people to feel nature. At present, it is difficult for human beings to achieve rich and realistic tactile reproduction and interaction.

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