System and method for virtual implementing helmet anti-dazzle based on multiple acceleration transducers

Abstract

The invention relates to multi-virtual reality helmet anti - vertigo systems and methods based on an acceleration sensor, belongs to the field of virtual reality interactive technologies. The system includes four line acceleration sensors, helmet position tracking device and computer. The working steps of the system are:through a acceleration sensor on the helmet ,gets the angular acceleration rotating around head and the line acceleration of movement before and after; 6-DOF position information of head movement presented by the position tracker , is given effective forecasting of location by the computer; by placing another acceleration sensor on movement platform of the human body set, it can realize position measurement of the corresponding freedom of movement platform, and gain an effective forecasting of the relative position. With the invention of high-performance, strong practicability, low-cost features, users can effectively alleviate vertigo symptoms of disease caused by long wearing virtual reality helmet, such as simulation.

Description

technical field [0001] The invention belongs to a human-computer interaction technology of a virtual reality system, in particular to a virtual reality head tracking device and method using four acceleration sensors and a position tracker, and is a human-computer interaction device in a virtual reality system. The system can give the predicted position of the human head and effectively reduce the vertigo caused by wearing a virtual reality helmet for a long time. In particular, it can obtain the predicted value of the relative position of the human head relative to the motion platform on which the human body is located. Background technique [0002] The helmet is one of the important visual devices of the virtual reality system. It displays the corresponding visual images in real time based on the wearer's position and line of sight information provided by the tracking device. It is widely used in military system simulation, simulation and training in virtual reality techno...

AI Technical Summary

Problems solved by technology

[0007] The main problems of the existing technology at home and abroad are: ①The comprehensive delay compensation scheme for the six degrees of freedom position and attitude of the head, the hardware system is huge and the cost is high, and the cost of the integrated system is almost equivalent to the cost of the helmet plus position tracking equipment ; ② Studies have shown that the fastest movement of the human head is left-right rotation and forward-backward movement, and effective compensation of these two degrees of freedom can solve the main delay problem; ③ Previous technologies have used angular velocity gyroscopes For the prediction of the angular position, only the first-order quantity of the angular position is given, which cannot meet the requirements for some high-performance algorithms that require the second-order quantity; ④The previous systems can only provide the delay compensation of the absolute position. For some special applications, such as when the human body is on a moving platform and the relative position of the human body relative to the platform is to be measured, this system cannot meet the requirements

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