Electroencephalogram brainwave alpha based infrasonic wave driving fatigue relieving method and device

A driving fatigue, infrasound technology, applied in the field of biomedical engineering, can solve the problems of no fatigue, limited application scope, inconvenient operation of drivers, etc.

Inactive Publication Date: 2015-08-19
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent with the patent number CN 104192033A discloses a car seat lumbar support device for relieving driving fatigue, which is helpful to physical fatigue, but has little effect on mental fatigue
The Chinese patent with the patent number CN 102988171A discloses a cooling type driving fatigue eliminator, which relieves fatigue by applying cold stimulation to the temples. Although this method can relieve fatigue in a short time, it only treats the symptoms but not the root cause, and the device needs to be worn on the head. device, which may not be acceptable to some drivers, and no fatigue monitoring device
The Chinese patent with the patent number CN 103111020A discloses a system and method for detecting and alleviating driving fatigue based on acupoint electrical stimulation. When the driver is fatigued, the acupoints are electrically stimulated to relieve fatigue. This method has certain feasibility , but it is necessary to install electrical stimulation electrodes on the driver's body, which brings inconvenience to the driver's operation and limits its application range
The Chinese patent with the patent number CN 1424206A discloses a device for eliminating driving fatigue with sound waves, which can relieve driving fatigue by sending out warning sound waves to stimulate the driver's auditory nerve center. Not obvious, treat the symptoms but not the root cause, and there is no device for monitoring driving fatigue
The Chinese patent with the patent number of CN 104436407A discloses a method and device for alleviating fatigue with infrasonic waves. The infrasonic wave acts on the brain to induce people to quickly enter a sleep state to relieve fatigue. This method can fundamentally relieve fatigue, but it cannot be applied to driving the driver of the vehicle

Method used

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  • Electroencephalogram brainwave alpha based infrasonic wave driving fatigue relieving method and device
  • Electroencephalogram brainwave alpha based infrasonic wave driving fatigue relieving method and device
  • Electroencephalogram brainwave alpha based infrasonic wave driving fatigue relieving method and device

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Effect test

Embodiment 1

[0019] An infrasonic method for relieving driving fatigue based on EEG α waves is to use a digital EEG instrument to collect the EEG signals of the driver in a quiet state with eyes open, use wavelet packet transform filtering to extract the driver’s EEG α waves, and save them as The data source of the infrasonic signal, names the collected data of each driver and saves it in the controller for later use; the infrasonic signal is input to the speaker system and then acts on the driver's head to relieve the driver's driving fatigue.

[0020] The above-mentioned device for infrasonic wave alleviating driving fatigue based on EEG alpha waves is composed of five parts: a controller, a power amplifier, a loudspeaker system, a hydraulic system, and a fatigue monitoring device; the controller receives the driver fatigue early warning signal from the fatigue monitoring device It also controls the work of the hydraulic system and the output of the infrasonic signal. The power amplifier ...

Embodiment 2

[0025] The speaker system is installed in the center of the top of the vehicle. When the driver is not tired, the included angle θ is increased to 145° to play car music; when the driver is tired, the speaker system is moved to the top of the driver's head by the hydraulic control system. Used to relieve driver fatigue. Others are the same as embodiment one.

Embodiment 3

[0026] Embodiment three (see attached Figure 5 ):

[0027] Add a timing module to the controller, and start timing for 30 minutes after the engine is ignited (can be adjusted according to the driver’s situation). When the time is up, if the speaker system has started to work, the next round of timing will be performed. If it is not working, the speaker system will start to work and play again. When finished, the speaker system is reset, and the next round of timing is performed until the engine is turned off. Although the control logic is complex, it can suppress the driver's fatigue before the driver's fatigue occurs, and can prevent safety accidents caused by the failure of the fatigue monitoring device. Others are the same as embodiment one.

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Abstract

The invention belongs to the field of biomedical engineering and provides an electroencephalogram brainwave alpha based infrasonic wave driving fatigue relieving method and device. The electroencephalogram brainwave alpha based infrasonic wave driving fatigue relieving method comprises the steps of acquiring electroencephalogram signals of a driver in quiet and eye opening states, extracting electroencephalogram brainwaves alpha (8-12Hz) as a infrasonic wave signal source, and then enabling infrasonic waves to act on the head of the driver through a speaker system so as to relieve driving fatigue. The electroencephalogram brainwave alpha based infrasonic wave driving fatigue relieving device consists of a controller, a power amplifier, the speaker system and a fatigue monitoring device, wherein the controller controls signal output, the power amplifier amplifies the power of input signals and transmits the signals to the speaker system, a hydraulic system controls the position of the speaker system, and the fatigue monitoring device detects the state of the driver and feeds back a detection result to the controller. The fatigue relieving method can effectively solve the driving fatigue problem of the driver and does not produce influence on non-driving persons. The driving fatigue relieving device can be combined with an interior audio system to achieve full-automatic operation.

Description

technical field [0001] The invention belongs to the field of biomedical engineering, and relates to the application of infrasonic waves in the field of driving fatigue, in particular to a method and device for alleviating driving fatigue based on infrasonic waves of electroencephalogram alpha waves. Background technique [0002] Driving fatigue refers to the imbalance of physiological and psychological functions of the driver after driving continuously for a long time, and the phenomenon of objectively declining driving skills. Driving fatigue can affect various aspects such as driver's attention, feeling, perception, thinking, judgment, will, decision and motion. In recent years, the number of road traffic accidents and the number of accident deaths have been increasing. According to the statistics of relevant departments, there are as many as 1 billion road traffic accidents in the world every year, of which traffic accidents caused by fatigue driving account for 25-30%. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M21/00
Inventor 张建华李刚
Owner SHANDONG UNIV
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