Six-degree-of-freedom parallel mechanism helmet servo system

Abstract

The invention discloses a six-degree-of-freedom parallel mechanism helmet servo system, which relates to a virtual display interactive device, in particular to a helmet displayer for improving virtual reality. In the invention, six sets of universal supports are uniformly arranged on the periphery of an upper platform, each set of the universal support is connected with a controllable expansion link and is provided with a mechanism drive and kinematic parameter detecting unit, each set of composite spherical hinge is provided with a helmet weight detecting unit, and a lower platform is provided with a plurality of head movement detecting units. The six-degree-of-freedom parallel mechanism helmet servo system provided by the invention aims at lightening the helmet weight felt by a wearer and alleviating the helmet obstructive effect felt by the wearer during motion time, thereby alleviating feelings about heaviness, restriction and foreign bodies, improving the comfortableness of wearing the helmet and strengthening the immersion sense of the virtual reality; and simultaneously, the six-degree-of-freedom parallel mechanism helmet servo system detects the position of the head of thewearer by utilizing the mechanical measuring device of the servo system, and accomplishes the function of tracing the head of a participant in a virtual reality system.

Description

technical field [0001] The invention relates to a virtual display interactive device, in particular to a helmet-mounted display for improving virtual reality. Background technique [0002] The helmet display is mainly used for the display of three-dimensional virtual scenes, and is mostly used in virtual reality and augmented reality systems. At present, virtual reality helmets with high resolution and contrast, and large field of view are generally heavy and bulky, and it is inconvenient to move when worn, with a sense of heaviness, restraint and foreign body, which affects comfort and immersion; position tracker Used in conjunction with the helmet-mounted display, it is used to measure and output the spatial position and attitude of the helmet to realize human-computer interaction. However, the existing position trackers such as electromagnetic and ultrasonic are greatly disturbed by the environment, and there are deficiencies in positioning accuracy, stability and signal...

AI Technical Summary

Problems solved by technology

One is that it can only detect the three-degree-of-freedom rotation data of the helmet-mounted display, but it can’t do anything about the three-degree-of-freedom translation data of the helmet-mounted display; the second is that the elastic deformation of the flexible shaft affects the detection accuracy; the third is that people wearing the helmet display There will still be a sense of heaviness, restraint and foreign body feeling when using it, but the sense of comfort and immersion has not been improved

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