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Virtual reality interaction method based on fatigue monitoring and early warning

A technology of virtual reality and interactive method, applied in the field of virtual reality

Active Publication Date: 2019-11-26
ACADEMY OF MILITARY MEDICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, although the head-mounted virtual reality device in the prior art can monitor the larger head movements of the user of the virtual reality device, it cannot monitor the user's physiological or cognitive state and emotional changes, for example, Startle, stimulus and other responses, monitor

Method used

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  • Virtual reality interaction method based on fatigue monitoring and early warning
  • Virtual reality interaction method based on fatigue monitoring and early warning
  • Virtual reality interaction method based on fatigue monitoring and early warning

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Embodiment Construction

[0052] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0053] A virtual reality interactive method based on fatigue monitoring and early warning, such as figure 1 As shown, the specific steps are as follows:

[0054] S1: Obtain the initial reference value d of the pupil boundary through the eye tracking device 0 , and the initial value A of the energy ratio of the α rhythm in all brain waves in the initial state obtained through the EEG acquisition device 0 ; set to A 0 The value after 30% increase is the second threshold;

[0055] S2: Set the sampling interval to the first sampling interval t 1 , get the bli...

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Abstract

The invention relates to a virtual reality interaction method based on fatigue monitoring and early warning, being characterized by judging whether an operator is in a fatigue state or not according to the blinking frequency and the energy proportion of the alpha rhythm in all brain waves; in the monitoring process, as long as one of the energy ratio or the blinking frequency of the alpha rhythm in all brain waves is greater than a respective preset threshold value, reducing the sampling interval, and re-sampling the parameters which do not exceed the threshold limit; judging whether a presetthreshold value is exceeded or not, starting a flight control system to fly autonomously and give an alarm when all the parameters meet the alarm requirement, setting a first sampling interval t1 forthe sampling interval, and obtaining a blinking frequency f1 and an energy proportion A1 of the alpha rhythm in all the brain waves; if the blinking frequency f1 is smaller than or equal to a first threshold value and the energy proportion A1 of the alpha rhythm in all the brain waves is smaller than or equal to a second threshold value, executing the step S2; and closing the flight control systemand entering a manual operation mode.

Description

Technical field [0001] The present invention relates to the field of virtual reality technology, and more specifically, to a virtual reality interaction method based on fatigue monitoring and early warning. Background technique [0002] Virtual reality technology is a computer simulation system that can create and experience a virtual world. It uses computers to generate a simulation environment. It is a system simulation of multi-source information fusion, interactive three-dimensional dynamic vision and entity behavior, and can Provide users with an immersive interactive environment in a virtual three-dimensional space. [0003] In recent years, virtual reality has attracted much attention due to its huge potential in entertainment, games, education, medical care, artistic creation, engineering design and other fields. Many electronic equipment manufacturers have launched consumer-grade equipment packages, and a large number of virtual reality-based application software, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/01A61B5/16A61B5/048A61B5/374
CPCG06F3/013A61B5/163A61B5/374
Inventor 贺浩宸李春永岳敬伟
Owner ACADEMY OF MILITARY MEDICAL SCI