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A 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: 2020-05-12
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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  • A virtual reality interaction method based on fatigue monitoring and early warning
  • A virtual reality interaction method based on fatigue monitoring and early warning
  • A 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, which judges whether the operator is in a fatigue state by checking the blink frequency and the energy ratio of α rhythm in all brain waves. During the monitoring process, as long as α rhythm is in the whole If the proportion of energy in the brain wave or the blink frequency is greater than the preset threshold, the sampling interval will be shortened, and the parameters that do not exceed the threshold will be re-sampled to determine whether the preset threshold is exceeded. When all parameters meet the alarm requirements , start the flight control system for autonomous flight and give an alarm, and set the sampling interval to the first sampling interval t 1 , get the blink frequency f 1 And obtain the energy ratio A of the α rhythm in all brain waves 1 ; If the blink frequency f 1 ≤ the first threshold and the energy proportion of α rhythm in all brain waves A1 ≤ the second threshold, then transfer to S2; turn off the flight control system and enter the manual operation mode.

Description

technical field [0001] The invention relates to the technical field of virtual reality, 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 a computer to generate a simulated environment. It is a system simulation of multi-source information fusion, interactive three-dimensional dynamic vision and entity behavior. 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 great potential in various fields such as entertainment, games, education, medical care, artistic creation, and engineering design. A number of electronic equipment manufacturers have launched consumer-grade equipment sets, and virtual reality-based application software, games, and panoramic ...

Claims

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Application Information

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Patent Type & Authority Patents(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