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Method and apparatus for monitoring and awakening fatigue doze

A wake-up device, fatigue technology, applied in the direction of hypnosis devices, devices that cause changes in the state of consciousness, diagnostic recording/measurement, etc.

Active Publication Date: 2008-08-20
GUANGZHOU RAINJET MEDICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the device uses brain waves as the basis for analysis, which can reduce false alarms and missed alarms compared to other methods, there are still certain problems in using the distribution ratio of the frequency spectrum as the basis for monitoring and judgment.

Method used

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  • Method and apparatus for monitoring and awakening fatigue doze
  • Method and apparatus for monitoring and awakening fatigue doze
  • Method and apparatus for monitoring and awakening fatigue doze

Examples

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Embodiment Construction

[0034] The steps of the embodiment of the method for judging the degree of fatigue and drowsiness and then waking up by monitoring the brain waves of the present invention are as follows:

[0035] 1. Attach the 3 brainwave acquisition electrodes to the collection point of the central area in the center of the head, the reference point of the earlobe and the grounding point in the middle of the forehead to collect brainwaves;

[0036] 2. Take the potential difference between the collection point in the central area and the earlobe reference point, and convert it into a digital signal through operational amplification and A / D analog-to-digital conversion. After the signal is photoelectrically isolated by a photocoupler, the digital signal is filtered by FFT operation deal with;

[0037]3. Through the periodogram method and / or Burg recursive algorithm, multi-window method algorithm, take the power spectrum value with the smallest error, when the frequency of the alpha wave betwee...

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PUM

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Abstract

The invention relates to a monitoring and rousing method for weary doze, comprising the following steps: 1) sticking three brain wave-collect electrodes on the collect point of head center, the reference point of earlobe and the earthing contact of forehead center; 2) collecting the potential difference of the collect point and the reference point to amplify, A / D convert and filter; 3) counting and selecting the power spectral value in the least error, and then sending the control signal to the alarm system when the ratio of the power spectral value between the Alpha wave with frequency in 8 to 13 Hz and the Theta wave with frequency in 4 to 7 Hz is between 1.582 to 2.08; 4) controlling the frequency output device to alarm by the alarm system. The weary doze-monitor and alarm device made by the invention comprises a brain wave-collect and treat system (1), a photocoupling module (2), a digital signal processing module (3), a information processing system (4), an alarm information processing system (5) and a frequency output device (6), wherein, the brain wave-collect and treat system (1) is connected by data lines. The invention and the device are high in accuracy rate and can avoid the accident during high risk operation due to weary doze furthest.

Description

technical field [0001] The invention relates to a method for waking up by judging the degree of fatigue and drowsiness by monitoring brain waves, and also relates to a device developed by using the method. Background technique [0002] There are many existing methods for monitoring driver fatigue and drowsiness: for example, by monitoring the driver's eye activity, the swing and tilt of the head, the change of the grip force of the hand on the steering wheel, the action events of the steering wheel and the abnormal changes of the speed of the vehicle. Determine whether the driver is dozing off due to fatigue. [0003] Germany BMW company has developed a kind of sleep alarm device, the design principle of this alarm device is to monitor the eyelid activity of the driver through a camera, and transmit the data to the device after summarizing, so as to determine whether the driver is driving. level of sobriety, and then send out a light alarm signal in due course. Also having...

Claims

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Application Information

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IPC IPC(8): A61B5/0476G06F19/00A61M21/00G08B21/06
Inventor 杨杰
Owner GUANGZHOU RAINJET MEDICAL EQUIP CO LTD
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