KR20060085543A - Eeg and neuro feedback system using bluetooth module attached to tta standard 24 pin connector for mobile phone - Google Patents

Abstract

The present invention relates to the development of a combined EEG measurement-analysis and neurofeedback training system using an external Bluetooth communication module attachable to a TTA standard 24-pin connector of a portable communication terminal.

The system of the present invention comprises a portable communication terminal unit, an external Bluetooth communication module unit, and a headset unit for measuring brain waves.

The external Bluetooth communication module unit includes a communication interface unit attached to a TTA standard 24-pin connector terminal of a portable communication terminal and a Bluetooth transmission / reception circuit unit wirelessly communicating with a headset.

The headset unit is characterized in that the hardware unit for acquiring brain waves, Bluetooth (Bluetooth) transmission and reception circuit unit, and the measurement electrode unit is implemented as one integrated headset.

The portable communication terminal connected to the EEG headset wirelessly by the TTA standard 24-pin connector accepts digital EEG data in real time and displays raw data (Raw Data) and band-specific data (delta, theta, alpha, SMR, beta, gamma). It displays real time on the LCD screen, displays analysis results, FFT data and Brain Map results, and includes interlocking neurofeedback training programs and games using brain waves.

EEG, Bluetooth, Wireless headset, Neurofeedback, Handheld device, EEG game

Description

EEE and Neuro Feedback System using Bluetooth module attached to TTA Standard 24 pin connector for mobile phone}

1 is an overall view of the present invention.

2 is a diagram of an external Bluetooth communication module and EEG measurement headset for attaching a TTA standard 24-pin connector according to the present invention.

Figure 3 is a diagram showing the EEG measurement, analysis, neurofeedback training method for mounting a portable terminal of the present invention

EEG, or EEG, is measured throughout the human scalp and is perceived by humans as a wavelength with a frequency of less than 30 Hz, with a potential difference of tens of microvolts. It is a biosignal that reflects the unconscious state directly or indirectly.

These EEG signals are classified into delta, theta, alpha, SMR, beta (δ, θ, α, smr, β), but there are some differences among the scholars. Among the signals that can be classified by the general band, 7-13hz is called alpha wave, and α wave is usually appeared when mental state is stable, eyes closed and comfortable psychological state.

About 13hz-20hz is called beta wave and β wave appears mainly when there is slight tension or more attention. The scholars also divide the EEG category in detail. The EEG of the 20 Hz to 30 Hz category is called high beta, and it appears when the tension of the mental state is maintained for a certain time, or it is concentrated or under stress. do.

4-8hz are called theta waves and θ waves are often seen when mentally and emotionally unstable or distracted, often found in adolescents with symptoms of Attention Deficit Disorders (ADD) and Attention Deficit Hyperactivity Disorder (ADHD). do.

4HZ and below are called delta waves, and δ waves are typical of normal sleep and also occur mainly in children under 3 years of age.

SMR (Sensory Motor Rhythm) waves belong to the category of low beta (low β) of about 12 to 15 hz, but specific brain waves appearing in the SMR region mean that the sensory motor rhythm is different for each scholar. This contrasts with the fact that alpha waves are associated with visual rhythm. The reason why this SMR wave is important is that it is a state of peak attention or peak performance in work, sports, or learning.

As described above, alpha waves are known to play a preliminary role in focusing attention in a state of psychological stability and are known to increase the frequency of alpha waves when maintaining psychological comfort.

EEG Biofeedback is a technology that actively uses the EEG to feed the human body through visual, auditory, and other synesthesia. It is officially called Neuro Feedback.

The neurofeedback study was first tested by Dr. Adrian and Dr. Mathew, of the University of Cambridge, England, in 1934, and was validated by Dr. Sherman of UCLA, USA, in 1968 after passing through Dr. Kamiya of the University of Chicago, USA. It became.

In 1971, he succeeded in normalizing epilepsy patients for the first time, and in 1972, Dr. Joel Luba of the University of Tennessee succeeded in testing ADD patients, children with learning disabilities, and autism, and developed autism, cerebral palsy, psychosis, drug addiction, Parkinson's disease, and sleep. Experiments were conducted on various symptoms such as disability, stress, and headache. After 90 years, research and experiments on brain function improvement, brain training, and learning promotion were conducted rapidly.

In a recent paper published in the journal of the International Psychophysiology Journal, the London Imperial College research team used the Neuro Feedback technology to attach brain wave sensors to the scalp and display human brain waves on a computer screen. I can improve my memory by correcting it. '

Today, EEG biofeedback, or neurofeedback technology, has been gradually expanded, and EEG SPECTRUM, PROCOM Biographer, Brain Center, Biofeedback Instrument Co., Ltd., Korea's Desktop Neuro Co., Ltd. Feedback devices, neuroharmony of the Korea Institute of Psychiatry, etc. have been released and used.

At present, these devices are PC-based bulky equipment, which are expensive, not easy to carry, and easy to carry, and use paste-type electrodes. There is discomfort such as.

An object of the present invention devised to solve the conventional problems as described above is a portable terminal manufactured to meet the TTA 24-pin standard, regardless of the type of the terminal manufacturer external communication module constant TTA standard 24-pin connector of the portable terminal It provides Bluetooth communication module for TTA standard 24-pin connector for general purpose mobile communication terminal which can exchange data with external EEG measurement hardware device by installing it on

It provides an integrated brain wave measurement headset capable of wireless communication in a Bluetooth (Bluetooth) method capable of wireless communication with the module,

The brain wave measurement headset is characterized in that the Bluetooth circuit, the brain wave measurement circuit, and the power supply circuit is provided integrally in the form of a headset,

EEG can be measured and analyzed in real time in a portable communication terminal, and raw data (Raw Data), data for each band (Delta, Theta, Alpha, SMR, Beta, Gamma), Brain Map, FFT (Fast Fourier Transform) data, EEG analysis results are displayed on the terminal screen, and by providing a program that can implement neurofeedback training through games, etc.

The aim of this study is to provide a system that enables the general public to use the personal mobile communication terminal to conveniently monitor and analyze their brain wave status and to develop brain development and mental health through neurofeedback training.

The system of the present invention for achieving the above object is composed of a portable communication terminal unit, an external Bluetooth communication module unit coupled to the portable communication terminal and a headset unit for measuring brain waves.

An external Bluetooth communication module that can be combined with the portable communication terminal is:

Connector terminal part which can be attached to TTA standard 24-pin connector terminal of portable communication terminal,

A communication circuit unit for processing data to exchange data with a portable communication terminal through the connector terminal unit;

It includes a Bluetooth circuit unit for performing RF communication to the data output from the communication circuit unit in accordance with the Bluetooth (Bluetooth) standard.

The headset unit for measuring the brain wave is:

The dry metal electrode contacts the scalp and receives an electrode unit for receiving an EEG signal, a hardware unit for measuring EEG, a Bluetooth circuit unit for wirelessly transmitting the measured EEG data, and a power unit.

EEG measurement hardware section again,

An amplifier for amplifying the analog EEG signal coming from the electrode,

A signal processor for converting an analog EEG signal into a digital signal and removing noise with a digital filter;

A controller for providing a digital EEG signal to a Bluetooth module circuit,

It is composed of a Bluetooth circuit unit for wireless communication with the portable communication terminal,

It consists of the power supply part which comprises a constant voltage circuit using the rechargeable secondary battery, such as lithium ion (Li-Ion) or nickel-metal hydrogen (Ni-mH).

The portable communication terminal unit:

Communication library unit for receiving digital data coming from external Bluetooth communication module through TTA standard 24-pin connector in real time by RS232 or USB method,

A signal processor for processing digital brain wave data received through the communication library using a digital filter;

Display unit to display raw data (Raw Data), band-specific data (Delta, Theta, Alpha, SMR, Beta, Gamma), FFT data and Brain Map data on the LCD screen of the portable communication terminal,

An analysis unit that calculates an analytical index such as stability, concentration, arousal, left and right brain balance, frontal lobe activity, and stress level using EEG data,

Protocol extraction unit for calculating the neurofeedback training, the game index with the analyzed result,

A database unit for storing and managing the results measured and analyzed by the method by each subject and time,

And a neurofeedback training program controller using the analysis results and protocol values.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall view of the present invention.

The personal portable terminal 300, which is released in accordance with the TTA Standard, i.e., the Standard on I / O Connection Interface of Digital Cellular Phone, is an external Bluetooth communication module regardless of the manufacturer. When the unit 100 is connected to the 24-pin connector of the portable communication terminal, an external hardware device, in the present invention, can wirelessly connect to the headset unit 200 for measuring brain waves and the Bluetooth method.

2 is a detailed view.

The external Bluetooth communication module 100 may perform wired communication with the mobile terminal through a terminal unit 110 that may be connected to a 24-pin connector of the mobile terminal.

Through the communication circuit unit 120 is capable of data communication with the portable communication terminal in the RS232C method or USB method,

The data is wirelessly transmitted from the Bluetooth circuit unit 130 to communicate with an EEG headset.

The Bluetooth circuit unit 130 may wirelessly communicate with the brain wave measurement headset unit 200 separated by a maximum linear distance of about 100 m.

The brain wave measurement headset 200 comprises the electrode 210 using a gold electrode or a gold plated electrode, which is a dry electrode, and the center axis of the headset is positioned at the center line axis of the left and right brain hemispheres so that the electrode is attached to the frontal region. Is configured to be contacted.

The back of the EEG headset 200 is a device that can adjust the length so that the electrode portion 210 is configured to be best attached to the frontal region.

The hardware unit 220 and the power supply unit 230 of the brain wave measurement headset unit 200 may be disposed anywhere on the top of the headset structure or the bottom of the back of the head.

The portable terminal unit 300 has a communication library unit 310 for reading data from a 24-pin connector of the TTA standard in the RS232 method or the USB method.

The signal processor 320 extracts raw data (Raw Data) and band-specific data (Delta, Theta, Alpha, SMR, Beta, Gamma) by processing and processing the read data, stability, concentration, left and right brain balance, and left brain. An analysis unit 330 for extracting activity, right brain activity, stress index, etc., and a protocol extractor 360 for extracting an index required for a game or neurofeedback training with brain waves;

It is composed of a neurofeedback training control unit 370 constituting a neurofeedback training algorithm based on the extracted and analyzed data,

The display unit 340 for displaying the results provided by the signal processor 320 or the analysis unit 330 on the LCD window of the mobile terminal and a database unit for constructing a file system for each subject and a date ( 350).

Conventionally, attempts have been made to communicate with an external device by configuring a separate circuit in a battery pack of a portable communication terminal. However, such a method is applicable only to terminals that are manufactured and manufactured separately by a portable communication terminal manufacturer. There was an inconvenience to be done.

Therefore, the present invention is characterized by the development of a module capable of wirelessly communicating with an external device and a Bluetooth device in general in all general portable communication terminals equipped with a 24-pin connector that conforms to the TTA standard, even if everyone does not purchase a new terminal. With the help of a simple device, it is easy to wirelessly measure and analyze EEG and enable neurofeedback training.

Claims (5)

In a wireless EEG measurement and neurofeedback training system using an external Bluetooth module attached to a TTA standard 24-pin connector for a mobile device, The Bluetooth module for the external TTA standard 24-pin connector is: Terminal part connected to TTA standard 24-pin connector for mobile terminal, Communication algorithm circuit unit for exchanging data with the mobile terminal through RS232C or USB communication through the terminal unit, And a Bluetooth circuit unit for wirelessly communicating data transmitted and received by the circuit unit. The method of claim 1 wherein the EEG measurement, Neurofeedback training system is: Electrode portion, EEG measurement circuit portion, Bluetooth (Bluetooth) circuit portion, characterized in that the power unit is a structure composed of a headset type, The electrode unit is composed of a gold electrode or a gold plated electrode, The EEG measurement circuit unit is composed of a signal processing unit using an analog signal amplifier and a digital filter, The Bluetooth circuit unit is configured as a circuit unit capable of exchanging data by wireless communication with a Bluetooth module for an external TTA standard 24-pin connector according to claim 1, The power supply unit is configured by using one lithium ion (Li Ion) or nickel metal hydride (Ni-mH) rechargeable secondary battery or by connecting three AAA type general batteries in series and configured in a constant voltage manner. do. The method of claim 2, The integrated headset structure is a curved structure that can be worn on the head parallel to the center line of the right and left hemispheres, Consists of a structure that can support the back of the head with a constant elasticity, The brain wave measuring circuit part, the Bluetooth circuit part, and the power supply part of claim 2 are characterized in that they are integrated. The portable communication terminal of claim 1, comprising: Korean Wireless Internet Platform, WIPI (Wireless Internet Platform for Interoperability) based portable communication terminal, It is characterized by including a portable communication terminal based on the BREW (Binary Runtime Environment for Wireless) platform. In the portable communication terminal of claim 4, The program implemented in the portable communication terminal is characterized by including EEG measurement, analysis, neurofeedback training program, The EEG measurement program is: Raw data (Raw Data) and band area data (Delta, Theta, Alpha, SMR, Beta, Gamma) of the left and right brains are displayed on the LCD window of the mobile terminal in real time. Display FFT (Fast Fourier Transformed) data in 3D graph and display band area data (Delta, Theta, Alpha, SMR, Beta, Gamma) in the form of Brain Map on LCD screen of mobile device It is characterized by The analysis program is: Stability, concentration, left and right brain balance, left brain activity, right brain activity, stress index, etc. are calculated and displayed on the LCD window of the mobile terminal. The neurofeedback training program refers to a mobile terminal-specific game type and a brain development program through the game.

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