TWI501752B - Brain wave feedback system and method thereof - Google Patents

Description

Brain wave feedback system and method thereof

The invention is a device for brain wave sensing and feedback.

With the development of science and technology, human beings are disturbed by brain pressure due to work pressure or excessive use of electronic equipment. The brain is disordered, the spirit is not good, the memory is not concentrated, and the serious impact on life and sleep quality is a problem that must be improved.

According to the research, brain waves are closely related to human activities (thinking, sleep, high creativity, writing, cranky thinking). Through the detection and analysis of brain waves, the brain status and mental state of the current subject can be roughly known. Moreover, some studies have shown that it is possible to improve the brainwave state by externally inputting an acoustic signal (such as an alpha wave) close to the brain wave, thereby stabilizing the emotional or psychological state of the human.

However, the current device that can output brainwave audio is completely based on the result of the user's choice of playing, and the user usually cannot sense the condition of his or her brain wave, and often chooses the input brain wave that does not meet the demand, therefore, the output brain wave is utilized. The purpose of audio attempts to improve the body's brain waves is greatly reduced.

In order to solve the technical problem that the device capable of outputting brain wave audio can only output the brain wave simply and selectively improve the brain wave effect in the whole body, the present invention proposes that the brain wave can be detected first and detected according to the detection. The brain wave, autonomously judges the output of suitable brain waves, and automatically determines the external auxiliary brain waves that the user really needs to achieve the optimal stability of brain activity.

The invention provides a brain wave feedback system, which comprises a body and an brain wave detecting and generating module integrated in the body, the body is an object that can be worn on a human head, and the body is at least included for being worn by a user. When the head is in contact with one of the posterior bones of the ear, the brain wave detection and generation module reads the brain wave in one of the brains of the user, and selects an appropriate feedback brain from a brainwave database. The wave produces a vibration output corresponding to the brain wave or the frequency and amplitude of the brain wave in the brain.

The brain wave detection and generation module includes a central processing unit and a second brain wave output module electrically connected to the central processing unit, an input unit, a display unit, a voice circuit and a sensing electrode group. The input unit and the display unit are divided into a user input and output interface of the brain wave detection and generation module; the voice circuit is coupled to a speaker, and the voice circuit is controlled by the central processor to drive the speaker. And a signal processing circuit is connected between the sensing electrode group and the central processing unit, the electrode sensing group includes a plurality of electrodes, which are fixedly spaced apart from each other and are fixedly embedded in the body, the sensing electrode group Continuously receiving brain waves from the brain of the user; each of the brain wave output modules is respectively connected to the central processor, and the brain wave output module is controlled by the central processor to generate the ear of the user The bone generates a vibration output; the central processor internally includes the brain wave database, and the brain wave database stores a plurality of brain waves; the central processor receives the brain wave after the brain Selecting a data library with the feedback of the electroencephalogram or a brain wave in vivo particular correspondence of the module output from the output to the electroencephalogram electroencephalogram vivo.

The brainwave database stores alpha waves, beta waves, delta waves, θ waves, brain waves with improved memory, or brain waves that help sleep.

Wherein, the body is a head protector, and the body comprises one of a forehead portion, a rear brain portion and a second ear portion integrally formed.

The speaker is fixedly mounted on the ear side portion; the electrodes are fixedly spaced apart from each other and are fixedly embedded in the forehead portion, the back brain portion and the ear side portion of the body.

The signal processing circuit includes a signal conversion unit and a signal amplifier connected in series to the sensing electrode group and the central processing unit. The electrodes of the sensing electrode group are in contact with the head of the user to sense the brain wave of the user, and the brain wave is passed through the signal amplifier and the signal converter to make the body After the brain wave is amplified and analog-digital converted, it is input to the central processing unit.

Each of the brain wave output modules is connected in series with a signal converter and a signal amplifier, and the brain wave or brain brain wave outputted by the central processor is digitally analog converted and amplified, and then output to the brain wave output module. Brain wave output module.

The invention further provides a brain wave feedback output method, the method comprising the steps of: sensing a brain wave signal: continuously reading an integrated brain wave from a user's brain; and filtering the signal: filtering, amplifying and converting the brain wave in the body; Brain wave signal: Analyze or frequency-separate brain waves in the body, and separately extract brain waves with specific characteristics; compare recognition operation: compare the internal brain wave with the internal brain wave information of a brainwave database Determining whether the in-vivo brain wave and the brain wave database are approximated and different in intensity, frequency, and waveform characteristics; whether the feature falls within a set range: whether the characteristics of the brain wave in the body are compared Falling into a set range, if it falls within the set range, the brain wave is filtered, amplified and converted into a vibration output; if the set range is exceeded, a brainwave database is selected to specifically convert the feedback brain wave into Vibration output.

Thereby, the present invention has the following features:

1. The auxiliary brainwave output can be selected and adjusted according to the user's needs, solving the problem of poor technical performance.

2. Directly input the user's brain by vibration to benefit the hearing impaired.

3. After the set time, a warning voice output can be generated to alert the user.

Please refer to the first, second and third figures, which are a preferred embodiment of the brain wave feedback system of the present invention, comprising a body 10 and an brain wave detection and generation module 20 integrated in the body 10, The body 10 is an object that can be worn on a human head, such as a headscarf, a hard hat, a hat, etc., and is not limited in form, and at least includes a position corresponding to a post-ear bone when worn on a user's head. One after the brain. The body 10 of the embodiment is a head protector, and the body 10 includes a forehead portion, a rear brain portion and a second ear portion integrally formed. When the body 10 is worn on the head of a user 50, The forehead portion, the posterior brain portion and the two side portions of the ear respectively correspond to the positions of the forehead, the posterior cerebral palsy and the two ears of the user 50 and are tightly covered and protected, as shown in the fifth figure.

The brain wave detection and generation module 20 is fixedly mounted on the body 10. The brain wave detection and generation module is an electronic module capable of detecting brain waves in one of the users 50 and generating a feedback brain wave. According to the definition of the Journal of Science (2011): " Many nerve cells in the human brain are constantly moving day after day; cell activities emit electromagnetic waves. If scientific instruments are used to detect the potential activity of the brain, it looks like on the screen. Like the waves, so we call it "brain wave." Simply put, brain waves and brain consciousness have a certain degree of correspondence, just like the rhythm of brain cell activity. ... In 1929, Berger recorded the same radio wave activity on the human skull for the first time. He recorded and measured the tiny discharge process in the human brain. This is the first time in human history to publish a brainwave record, named "Brain." Electroencephalogram (EEG, EEG). ...the brainwave diagram is a graph of the potential difference of a certain point on time on the head casing, usually in microvolts (millionths of a volt). The generation of the potential difference is related to the cell membrane potential. There is a potential difference on both sides of the cell membrane. This is because the extra negative ions in the cell are attracted to the extracellular positive ions, forming potentials in the inner and outer layers of the cell membrane, such as the membrane of nerve cells. The potential is generally between -40 and -90 mV (potential in the cell relative to the potential outside the cell). The potential difference recorded by the brain wave is caused by the tens of thousands of nerve cells in the cerebral cortex near the surface. When people are in eyes, eyes closed, awake or coma, the vibration frequency of brain waves will change significantly, between 1 and 40 Hz. The International Organization of Societies for Electrophysiological Technology is based on different frequencies. The brain wave is divided into α, β, δ, and θ waves. When people focus on thinking, reasoning, or stress, nervousness, uncomfortableness, anxiety, etc., it is easy to measure the beta wave (12~38Hz), and the beta wave has the highest frequency, which is the brainwave of the "consciousness" level. After the concentration is reduced, relaxed, swayed, emptied, absent-minded, and closed, the alpha wave (8~12Hz) is measured. The alpha wave can be said to be the bridge between consciousness and subconsciousness. Once in sleep, the brainwaves become low-frequency waves θ waves (4~8Hz) and δ waves (0.5~4Hz). θ waves are “subconscious” waves, such as memory, perception, emotion, attitude, belief, dream or meditation. Etc.; delta waves are the "unconscious" level that is needed to restore physical exertion. The combination of α, β, δ, and θ waves can reflect human behavior and learning performance. "In other words, brain wave brain activity on behalf of the state, pressure, tension, deep thinking, sleep, and so all states produce different outputs, and can produce similar or vibrations or sound waves through play and brain wave response frequency, can also be This will change and affect brain waves and change the activity of the human brain.

The brain wave detection and generation module 20 includes a central processing unit 21 and a second brain wave output module 23 electrically connected to the central processing unit 21, an input unit 26, a display unit 27, a voice circuit 24, and a sensing electrode group 25, the central processing unit 21 internally includes a brain wave database, and the brain wave database stores various brain waves, such as α wave, β wave, δ wave, θ wave, and brain wave with improved memory. A brain wave that helps sleep, and so on.

The input unit 26 and the display unit 27 are divided into user input and output interfaces of the brain wave detection and generation module 20, thereby respectively accepting input and settings of a user and generating an electronic status or message display. The input unit 26 and the display unit 27 are fixedly disposed on an outer surface of the body 10 .

The voice circuit 24 is coupled to a speaker 242. The voice circuit 24 is controlled by the central processor 24 to drive the speaker 242 to produce a sound output. The speaker 242 of the embodiment is fixedly mounted to the ear side portion.

A signal processing circuit 252 is connected in series between the sensing electrode group 25 and the central processing unit 21, and the electrode sensing group 25 includes a plurality of electrodes which are fixedly spaced apart from each other and are embedded in the forehead portion of the body 10. And/or the rear brain portion, the ear side portion, when the user 50 wears the body 10, the sensing electrode group 25 can continuously receive brain waves from the brain of the user 50. In order to make the signal of the sensing electrode group 25 more significant, a signal processing circuit can be connected between the sensing electrode group 25 and the central processing unit 21, and the signal processing circuit includes a signal conversion unit and a signal amplifier. The system is sequentially connected between the sensing electrode group 25 and the central processing unit 21, and each of the sensing electrode groups 25 is electrically connected. The pole is in contact with the head of the user 50, and the brain wave of the user 50 is sensed, and the brain wave is amplified and analogized by the brain wave through the signal amplifier and the signal converter. After the digital conversion, it is input to the central processing unit 21.

Each of the brain wave output modules 23 is respectively connected to the central processing unit 21, and the brain wave output module 23 is a generator capable of generating a vibration frequency, which can be a coil, an iron core and a device such as a general speaker. The vibration component is composed of a current change of the coil, so that the iron core disposed in the coil reciprocates, thereby driving the vibration component in linkage with the iron core mechanism to generate vibration at a specific frequency, wherein The vibration frequency corresponds to a feedback brain wave. Each of the brainwave output modules 23 can be connected in series with a signal processing module 232. The signal processing module can include a signal converter and a signal amplifier connected in series, and the CPU 21 outputs the CPU 21 separately. The feedback brain wave is digitally analog converted and amplified, and then output to the brain wave output module 23. The brain wave output module 23 of the embodiment is embedded in the rear brain portion of the body 10. When the body 10 is worn by the user 50, the brain wave output module 23 and the user 50 head are The back of the ear corresponds to the vibration generated by the brain wave output module 23 at a specific frequency.

After receiving the brain wave in the body, the central processing unit 21 selects a feedback brain wave having a specific correspondence relationship with the brain wave in the brainwave database, and outputs the brain wave output module 23, The user 50 can sense the feedback brainwave corresponding to the brain wave in the body to change the brain wave in the body. The central processing unit 21 generates a feedback brainwave with a specific correspondence, which can be according to the steps listed in the fourth figure:

Step 1 senses brain wave signal: the sensing electrode group 25 is used by the user 50 The brain continuously reads the brain waves in the body.

The step 2 signal filtering process: the read brain wave signal is filtered, amplified, converted, and output to the central processing unit 21 through the signal processing circuit 252.

Step 3 extracts brain wave signals: the central processing unit 21 separates or frequency-separates the received brain waves, and separately extracts brain waves having specific characteristics. The so-called specific feature refers to frequency, intensity or a specific waveform.

The step 4 compares the identification operation: the central processing unit 21 compares the read intra-cerebral wave with the internal brain wave information of the brainwave database, and determines the read intra-cerebral brain wave and the brain wave data. The approximation and difference of features such as intensity, frequency, and waveform.

Whether the feature falls within the setting range: the central processing unit 21 compares whether the characteristics of the intensity, frequency, waveform, and the like of the brain wave read in the body fall within a preset setting range, and if yes, execute step step 7, otherwise, execute step6 .

Step 6 built-in brainwave reading and amplification: The central processing unit 21 selects an appropriate feedback brainwave from the brainwave database and amplifies the signal. The so-called appropriate means that the central processing unit 21 selects the feedback brain wave required by the user 50 according to the judgment result of the steps 4 and 5, for example, the alpha wave outputted by the user 50 brain and the brain wave database. The α wave in the difference is large and disordered, and the central processor 21 can select the alpha wave of the brain wave database to be amplified according to a suitable ratio and output.

Step 7 amplifies the brain wave signal that is captured: the central processing unit 21 determines that the brain wave of the user 50 is stable and of good quality according to the comparison of the foregoing steps, so the central processor 21 generates the brain wave according to the user 50. Give Process and enlarge before output.

The step 8 drives the brain wave output module: the central processing unit 21 outputs the feedback or selected feedback brain wave or the body brain wave to the brain wave output module 23.

Step 9 outputs brain wave signal: the brain wave output module 23 outputs the feedback brain wave or brain wave in a vibration mode.

Step 10 operation time>T? The central processing unit 21 determines whether the output time of the feedback brain wave exceeds a set time. If the set time has elapsed, the next step step 11 is performed; otherwise, the copying step step 1 is performed.

Step 11 voice prompt and shutdown system: the central processing unit 21 drives the voice circuit 24, the speaker 242, notifies the user of the time of the brain wave feedback output, and turns off the vibration output of the brain wave output module 23, thereby protecting the use Person 50 exempts from the effects of overuse.

Thereby, the present invention has the following advantages:

1. The auxiliary brainwave output can be selected and adjusted according to the user's needs, solving the problem of poor technical performance.

2. Directly input the user's brain by vibration to benefit the hearing impaired.

10‧‧‧ Ontology

20‧‧‧Earth wave detection and production module

23‧‧‧ Brainwave output module

232‧‧‧Signal Processing Module

26‧‧‧ Input unit

27‧‧‧Display unit

24‧‧‧Voice Circuit

242‧‧‧Speakers

25‧‧‧Sensing electrode set

50‧‧‧Users

The first figure is a perspective view of a preferred embodiment of the invention.

The second figure is a front view of a preferred embodiment of the invention.

The third figure is a block diagram of a system according to a preferred embodiment of the present invention.

The fourth figure is a flow chart of a preferred embodiment of the present invention.

Figure 5 is a schematic illustration of the use of a preferred embodiment of the invention.

10‧‧‧ Ontology

25‧‧‧Sensing electrode set

50‧‧‧Users

Claims (8)

A brain wave feedback system includes a body and an brain wave detection and generation module integrated in the body, the body being an object that can be worn on a human head, and the body is at least included when being worn on a user's head The brain is corresponding to the position of the back bone of the ear. The brain wave detection and generation module reads the brain wave in one of the brains of the user, and selects an appropriate brain wave from a brain wave database. The behind-ear bone generates a vibration output corresponding to the feedback brain wave or the frequency and amplitude of the brain wave in the brain. The brain wave detection and generation module according to the first aspect of the invention, wherein the brain wave detection and generation module comprises a central processing unit and a second brain wave output module and an input unit respectively electrically connected to the central processing unit, a display unit, a voice circuit and a sensing electrode group, wherein: the input unit and the display unit are divided into a user input and output interface of the brain wave detection and generation module; the voice circuit is coupled to a speaker, the voice circuit Controlled by the central processor, the speaker is driven to generate a sound output; a sensing circuit is connected in series between the sensing electrode group and the central processing unit, and the electrode sensing group includes a plurality of electrodes, which are spaced apart from each other. And the fixed electrode assembly is continuously mounted on the body, and the sensing electrode group continuously receives brain waves from the brain of the user; each of the brain wave output modules is respectively connected to the central processor, and the brain wave output module is configured by the brain wave output module The control of the central processor generates a vibration output to the back bone of the user; the central processor internally includes the brainwave database, and the brainwave database stores a plurality of brain waves; After the central processor receives the brain wave in the body, The feedback brainwave or the intra-cerebral wave is selected from the brainwave database by a specific correspondence relationship with the brain wave in the body. For example, in the brain wave feedback system described in claim 1 or 2, the brain wave database stores α waves, β waves, δ waves, θ waves, brain waves with improved memory, or a brain wave that helps sleep. . The brain wave feedback system according to claim 3, wherein the body is a head protector, and the body comprises one of a forehead portion, a rear brain portion and a second ear portion integrally formed. The brain wave feedback system according to claim 4, wherein the speaker is fixedly mounted on the ear side portion; the electrodes are fixedly spaced apart from each other and are fixedly embedded in the forehead portion and the back brain portion of the body, the ear Side. The brain wave feedback system of claim 5, wherein a signal processing circuit is connected between the sensing electrode group and the central processing unit, and the signal processing circuit comprises a signal conversion unit and a signal amplifier system. Connected between the sensing electrode group and the central processing unit, the electrodes of the sensing electrode group are in contact with the head of the user to sense the brain wave of the user, and the brain wave is The brain wave is amplified and analog-digital converted by the signal amplifier and the signal converter, and then input to the central processing unit. For example, in the brain wave feedback system described in claim 6, each of the brain wave output modules is connected in series with a signal converter and a signal amplifier, and the output of the central processor is respectively fed back to the brain wave or the brain. The brain wave is digitally analog converted and amplified, and then output to the brain wave output module. A brain wave feedback output method, the method comprising: sensing a brain wave signal: continuously reading an integrated inner brain wave by a user's brain; Signal filtering processing: filtering, amplifying and transforming brain waves in the body; extracting brain wave signals: analyzing or frequency-dividing brain waves in the body, and separately extracting brain waves with specific characteristics; comparing recognition operations: the body The intracerebral wave information of the brain wave and the brainwave database are compared with each other, and the similarity and difference between the in vivo brain wave and the brain wave database in terms of intensity, frequency, and waveform characteristics are judged; Setting range: compare whether the characteristics of the brain wave in the body fall within a set range, and if it falls within the set range, the brain wave is filtered, amplified and converted into a vibration output; if the setting range is exceeded, the brain is The wave database selects the specific feedback of the brainwave to be converted into a vibration output.