Electroencephalogram signal processing method and device

A signal processing device and signal processing technology, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve the problems of limited access methods, large limitations, and many acquisition channels, and achieve enhanced attention training and Effects of relaxation training and functional enhancement

Inactive Publication Date: 2013-02-13
TAHOCO ELECTRONICS TECH FUJIAN
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Problems solved by technology

Existing equipment is bulky, or has many acquisition channels, or needs to be equipped with professional electrode caps, etc., which is not conducive to the use of family health care, stu

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  • Electroencephalogram signal processing method and device
  • Electroencephalogram signal processing method and device

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Embodiment Construction

[0023] The present invention will be further described below through specific embodiments.

[0024] Electroencephalogram signal (EEG) is divided into: delta wave (1-3HZ), theta wave (4-7HZ), alpha wave (8-13HZ), beta wave (14-25HZ), Y wave (above 25HZ) according to its frequency . EEG signals contain rich content including thinking, emotion, mental and psychological activities, which can be distinguished from their electrical signal patterns and frequencies. For example: (1) When we are sleeping, the EEG shows that delta waves (0.5-4HZ) are dominant; (2) when we are drowsy or dreaming, EEG shows theta waves (4-8HZ) ) dominates; (3) When we are in a daily waking state, the proportion of alpha brain waves (8-12HZ) is maintained at a normal level; when we close our eyes in a waking state, we will immediately find that the brain waves The α wave increases greatly; in the state of relaxation and happiness, it is closely related to the proportion of α wave in the whole EEG distrib...

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Abstract

Disclosed is an electroencephalogram signal processing method and device. Acquired electroencephalogram signals are subjected to amplification preprocessing, Kaiser Window processing is performed on digital electroencephalogram signals including alpha wave, beta wave, theta wave and delta wave, and index parameters of the electroencephalogram signals are obtained through amplitude analysis, time domain analysis and frequency domain analysis. The electroencephalogram signal processing device comprises an electrode sensor, a preprocessing device, an analog/digital (A/D) conversion unit, a digital signal processing unit, an output unit, a display control unit and a storage unit. The electroencephalogram signal processing device is combined with a computer software analyzing and processing device, and human-machine operation is utilized to achieve functions of result display, healthcare advice, voice prompt and the like. The electroencephalogram signal processing device is convenient, easy to use, low in cost, maintenance-free and capable of conveniently displaying the current mental state and electroencephalogram in real time for students, white-collar employees and mental workers.

Description

technical field [0001] The invention relates to medical care equipment, in particular to a brain wave signal processing method and device thereof. Background technique [0002] As we all know, biological electrical phenomenon is one of the basic characteristics of life activities. All kinds of organisms have the performance of electrical activity. Different brain wave patterns will emit brain waves with different amplitudes and frequencies. Brain wave signals can be placed on the head sensors for measurement and research. The electrophysiological activity or the metabolic rate of the nervous system of an organic organ can be converted into a recognizable signal through the brain-computer interface technology. [0003] Traditional brain wave collection needs to be carried out in a dedicated laboratory, and the subjects usually need to stick several electrodes on the brain or wear a special electrode cap. At the same time, the laboratory also needs to be equipped with special...

Claims

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Application Information

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IPC IPC(8): A61B5/0476
Inventor 洪清喜叶清润林建清朱元林
Owner TAHOCO ELECTRONICS TECH FUJIAN
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