CN110062495A - Brain wave book lamp and its control method - Google Patents
Brain wave book lamp and its control method Download PDFInfo
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- CN110062495A CN110062495A CN201910244926.8A CN201910244926A CN110062495A CN 110062495 A CN110062495 A CN 110062495A CN 201910244926 A CN201910244926 A CN 201910244926A CN 110062495 A CN110062495 A CN 110062495A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
Abstract
It includes bluetooth module, signal extraction module, LED light that the present invention, which discloses a kind of brain wave book lamp and its control method, the book lamp, and the signal extraction module includes focus extraction module, allowance extraction module；Bluetooth module receives the brain wave data that brain wave detector is sent, and it is sent to signal extraction module, signal extraction module extracts the absorbed angle value in eeg data after doing dissection process and loosens angle value, and achieve the effect that control book lamp color change with brain wave in staged color change according to the LED light on the variation control book lamp both sides for loosening angle value and absorbed angle value.The present invention is shown by the color of book lamp, intuitively observes the variation of focus, allowance.Intuitive visual effect can also enter to determine guidance by color change come gompa, while be used to improve environment.
Description
Technical field
The present invention relates to a kind of brain waves to control electronics field, and in particular to a kind of book lamp that can be controlled with brain wave
And its control method.
Background technique
With the quickening pace of modern life, the body and mind that modern has increasing need for a kind of mode to relax.It sits in meditation into fixed
It increasingly becomes people and promotes a kind of physically and mentally healthy good way.But ordinary people is often difficult to for sitting in meditation into fixed method
It grasps, is difficult to frequent occurrence into fixed or enter to have determined to have no knowledge about, which rank oneself being now in into process is determined do not known
The case where section.
Occur a kind of book lamp product currently on the market, this product due to it luminous be page entire surface it is enterprising
Capable, so shining for it is used than the milder scene atmosphere that uniformly, when being well suited for sitting in meditation adjusts.But such book
Lamp product, light is fixed and invariable during meditation, or is changed according to fixed mode, for sitting in meditation into fixed rush
It is limited into acting on, it not can solve common beginner and be difficult into fixed problem.
Summary of the invention
It is an object of the invention to propose a kind of brain wave book lamp and its control method, for beat seated user provide more preferably sit in meditation into
Fixed guidance.
For this purpose, brain wave book lamp proposed by the present invention includes bluetooth module, signal extraction module, positioned at book lamp both sides
LED light, the signal extraction module include focus extraction module, allowance extraction module；Bluetooth module receives brain wave inspection
The brain wave data that instrument is sent is surveyed, and is sent to signal extraction module, signal extraction module extracts brain electricity number after doing dissection process
Absorbed angle value in and loosen angle value, and the LED light is controlled in staged according to the variation for loosening angle value and absorbed angle value
Color change achievees the effect that control book lamp color change with brain wave.
In some embodiments, the invention also includes following features:
Signal extraction module further includes action signal extraction module of gritting one's teeth, for extracting signal value of gritting one's teeth；The change of LED light
Change is also controlled by gritting one's teeth signal, achievees the effect that active control book lamp color change.
It further include brain wave data record and bright light process record memory, for brain wave data and corresponding
Bright light process recorded；Bright light Developing Tactics module, for after meditation, receiving meditation people to bright in historical data
The matching degree of lamp process and practical meditation state confirmed, and according to confirmation as a result, the control strategy of adjustment bright light；Its
In, control strategy includes the brightness of the focus perhaps setting of the peak of allowance and focus or allowance and lamp
Between relationship setting.
The present invention also proposes a kind of control method of brain wave book lamp, includes the following steps: that S1. receives brain wave detector
The brain wave data of transmission, and it is sent to signal extraction module；S2. signal extraction module extracts eeg data after doing dissection process
In absorbed angle value and loosen angle value；S3. according to the LED light on the variation control book lamp both sides for loosening angle value and absorbed angle value in rank
Ladder type color change achievees the effect that control book lamp color change with brain wave.
In some embodiments, it also includes the following features:
With people focus or loosen the raising of angle value, book lamp the right and left color is slowly gathered to centre, and people is worked as
Focus or when loosen angle value and reach peak, entire book lamp page color convergence bright designated color together.
Further include following steps: extracting signal value of gritting one's teeth, and control LED light variation by gritting one's teeth signal, reaches actively
The effect of book lamp color change is controlled, or controls the switching between bright light control strategy mode by gritting one's teeth signal.
Brain wave data and corresponding bright light process are recorded；After meditation, meditation people couple is received
The matching degree of bright light process and practical meditation state is confirmed in historical data, and according to confirmation as a result, adjustment bright light
Control strategy；Wherein, control strategy includes that focus perhaps the setting of the peak of allowance and focus or is loosened
Relationship between degree and the brightness of lamp is set.
R21, Fourier transform is carried out to the eeg signal, obtains the frequency-region signal of eeg signal；R22, frequency
In the signal of domain, the average value of the signal amplitude in particular frequency range is sought；The average value is as signal value of gritting one's teeth；Or it should
Average value and a specific threshold compare, and when the average value is greater than the threshold value, are judged as movement of gritting one's teeth.
The lower limit that the frequency range is is 14-16Hz, upper limit 28-32Hz.
The threshold value takes 10-20 times of the average value without the signal amplitude grited one's teeth when acting in the particular frequency range.
The invention further relates to a kind of computer programs, can be computer-executed, to realize above-mentioned method.
The beneficial effects of the present invention are: the present invention is shown by the color of book lamp, focus, allowance are intuitively observed
Variation.Intuitive visual effect can also enter to determine guidance by color change come gompa, while be used to improve environment.
The further beneficial effect of the present invention is illustrated by following examples.
Detailed description of the invention
Fig. 1 is brain wave book lamp system control framework figure of the embodiment of the present invention；
Fig. 2A, 2B, 2C are three kinds of different conditions signals in brain wave book lamp opening procedure used by the embodiment of the present invention
Figure.
Fig. 3 is flow diagram of the embodiment of the present invention.
Fig. 4 is that the embodiment of the present invention is grited one's teeth signal acquiring method flow diagram.
Specific embodiment
Embodiment one
One, it summarizes
As shown in Figure 1, being the present embodiment brain wave book lamp system control framework figure.Brain wave detector (such as wear-type
Acquiring brain waves device) BrainLink obtain human brain original brain wave data and sent in the specific format by its bluetooth,
Bluetooth module in book lamp system receives the brain wave data that BrainLink is sent, and is sent to book lamp by serial ports and respectively extracts
Module, including focus extraction module, action signal of gritting one's teeth (signal of referred to as gritting one's teeth) extraction module, allowance extraction module, respectively
Extraction module extracts the absorbed angle value in eeg data after doing dissection process and loosens angle value and signal value of gritting one's teeth, and successively root
Both sides LED light is controlled in staged color change according to the variation for loosening angle value and absorbed angle value, and the variation of LED light simultaneously can also be with
It is controlled by gritting one's teeth signal, is finally reached the effect of brain wave control book lamp color change.
As Fig. 2A, 2B, 2C show three kinds of status diagrams of the opening of book lamp used in the present embodiment.By figure A, 2B,
2C as it can be seen that book lamp open when multiple " pages " by radial expansion side by side, to naturally occur soft light effect, and multipage paper
It has naturally occurred " ladder " that light continuously adjusts, therefore the application carries out sitting in meditation into fixed guidance using book lamp.
Two, using realization
Brain wave chip TGAT on brain wave detector BrainLink obtains focus, allowance and signal quality
It is worth (signal), after being filtered to three values, the display of book lamp, control module is controlled with subsequent each control module
Including focus control module, grit one's teeth action control module and allowance control module.
Wherein, brain wave processing unit uses brain wave chip TGAT.TGAT is a brain wave chip of Shen Nian company,
The chip is a highly integrated one chip eeg sensor, can pass through the inspection of three electrodes EEG, REF, SHIELD
It surveys, exports the eSense parameter of three Neurosky, analog-to-digital conversion can be carried out, and the abnormality of detectable poor contact is simultaneously
It is indicated by signal quality value " signal " or " poor signal ", may filter that an electric noise and 50/60hz alternating current are dry
It disturbs, obtains brain eeg signal RAW value (i.e. the original value of signal) data and signal quality signal value.Wherein
Signal is the unsigned integer variables of a byte, reads the letter that the ThinkGear of science and technology NeuroSky is measured for describing mind
Number quality, its value range are 0~200.When having the introducing of outside noise interference signal, signal value will be greater than 0, acquisition
Equipment just will disconnect.Signal value is higher, it is meant that interference is bigger, when value is 200, indicates that sensor contact electrode is complete
Have left the skin of user.We only under conditions of signal value is 0, just will do it acquisition, processing and operation.
Control description:
The left side: the color of book lamp changes according to the value of allowance, by light blue to dark blue.
When allowance is greater than 50, the direction of allowance from low to high, the brightness of green light changes with allowance；Allowance
By updating allowance when increaseing or decreasing, and red light brightness is updated according to allowance, red light is always on, and blue lamp is extinguished.
When allowance is less than 50, the direction of allowance from low to high, blue lamp changes with allowance, and red light is always on, green
Lamp goes out.
The case where this is the first display pattern, is exclusively used in display allowance.
The right: the color of book lamp changes according to the value of focus, by pale red to dark red.
The direction of focus from low to high, blue lamp change with focus, and green light is always on, and red light goes out；Focus gradually add or
Focus is updated when reduction, and blue lamp brightness is updated according to focus.
The case where this is the second display pattern, is exclusively used in display focus.
Gompa enters to determine guidance: when the focus of people or when loosen angle value and reach peak, book lamp the right and left face
Color is slowly gathered to centre, and last entire book lamp page color converges shiny red or white together.Wherein, it focus or puts
The peak of looseness initially by machine default settings, it is subsequent then can be by user's sets itself.
This is third display pattern, aims at display gompa and enters to determine state.
Only one of bright light control strategy described above.In some other embodiment, there can also be others
Bright light control strategy, and being switched between bright light control strategy mode, such as grited one's teeth signal with following and switched.
Grit one's teeth control: the right and left can control the switching between bright light control strategy mode by gritting one's teeth, and switch
When, the entire LED light of book lamp can be made to carry out the variation of color, converted according to the purple seven kinds of sequences of the yellowish green indigo of blood orange, so as to right
The state of switching is shown.This is the 4th display pattern, aims at display and grits one's teeth state of a control.
Further, gritting one's teeth not only realizes the variation controlled between LED light progress different colours, while can also control
The switching of bright light control strategy mode.Hands-on is more inconvenient when due to sitting in meditation, at this time if passed through to switch color
Signal of gritting one's teeth, which control, just has obvious advantage.Wherein, grit one's teeth signal acquisition methods below separately state.
Or it can be realized with signal is grited one's teeth and switch into different meditation ranks under same bright light control strategy mode
Section.Different bright light modes can be shown since meditation enters different phase, if contemplator feels current bright light mode and its
The meditation stage being practically in is not inconsistent, then can be switched over by gritting one's teeth, and is consistent until with the actual stage that it is felt.
May result in focus or allowance is affected although gritting one's teeth, each control module can at least understand accordingly grit one's teeth before
Correct status, and its scheme control strategy is corrected accordingly.
Fig. 3 show the present embodiment control flow schematic diagram.
Three, additional information
3.1, in system state indicator module status lamp major function:
1, when book lamp system is charging, the red light in charging indicator light is always on, and fully charged rear red light extinguishes；
2, bluetooth is not connected with blinking red lamp, blue lamp slow flash when BrainLink in book lamp system, and red light is put out after successful connection
It goes out, blue lamp quick flashing；
3, opening book lamp under general mode (without connecting BrainLink) can be used, and book lamp color can open and close every time
Changes will occur, can also be erect with 360 degree of openings；
4, book lamp is opened under brain wave mode, is then opened BrainLink, can be carried out bluetooth connection automatically；It connects into
After function, book lamp will appear one second rainbow light animation, indicate successful connection.
3.2 acquisition methods for gritting one's teeth signal
As shown in figure 4, the signal of gritting one's teeth for controlling book lamp can obtain as follows: first by the first of acquisition per second
Beginning signal value (RAW value) carries out a Fourier transformation, then acquires its average value within the scope of 15-30Hz.
What Fourier did is 512 points of operation in this example, it is possible to understand that 512 data of acquisition, the data point after converting
Cloth is on 512 points.
Calculate the signal averaging within the scope of 15-30Hz.The inventors discovered that this 512 points are in 15- when attonity
The possible range value of average value in 30Hz frequency range only has 100, and grits one's teeth (gritting one's teeth can cause the range value of partial dot to become larger)
When arrive 1000 or more.
Accordingly, the present embodiment grit one's teeth algorithm with the average value of signal amplitude in 15-30Hz frequency range come refer to calculate.
After obtaining this average value, the present embodiment can have two prescription formulas to utilize this value.
First, for controlling book lamp, signal value is bigger, then book lamp using the average value being calculated as signal value of gritting one's teeth
Bright light pattern switching it is also bigger.
Second, one " having " can be done or "None" is grited one's teeth the judgement of movement.In this example, the threshold value determined whether is selected as
1500 --- when average value is greater than 1500, it is judged as movement of gritting one's teeth, it is on the contrary then be judged as nothing.In practice, this threshold value can root
According between situation selection 500-10000, between more preferably optional 1000-2000, i.e., selection is without average value when acting of gritting one's teeth
5-200 times, preferably 10-20 times.Then the bright light mode of book lamp is controlled using the grit one's teeth judgement of movement of " having " or "None", than
Such as: when grit one's teeth act when, just switch book lamp bright light mode, repeatedly grit one's teeth, switching is repeated, often sting primary switching
One mode.
It should be noted that, although this frequency range of 15-30Hz is just substantially heavy with the range of the β wave in brain wave
It closes, but the present embodiment passes through the reasonable setting of amplitude threshold, can extremely accurate realize the differentiation with β wave.People is when awake
Most of the time E.E.G is in the wavy state of β, but from the comparison of β wave figure (summary) and signal graph of gritting one's teeth (summary) it can clearly be seen that β
The wave amplitude of wave in a frequency domain is significantly less than signal of gritting one's teeth, and the two can obviously be distinguished by amplitude without causing confusion ---
Average amplitude of the signal of β wave within the scope of corresponding frequencies is not up to 5 times of usually average value, and therefore, we select nothing to sting
Whether 5-200 times of average value be when agomphiasis is made come as having the judgment threshold for movement of gritting one's teeth that β wave is just enough to distinguish.If again
Number is selected as 10-20 times, then can more accurately distinguish.Based on this, we even can also directly be done the frequency range of β wave
The frequency range being averaged for us.
About the differentiation of grit one's teeth signal and β wave, can also be realized by the binding analysis of time-domain and frequency-domain.For example it can pass through
Artificial intelligence machine study, constructs a mode discriminator, according to the signal of signal and β wave signal in time domain and frequency domain of gritting one's teeth
The difference of waveform, identifies the two.Even β wave signal and signal of gritting one's teeth are in same frequency range, but the two on frequency domain
Waveform still differ greatly, therefore, it is feasible for distinguishing from waveform to the two.
3.3, battery charging and power management module major function in system:
5V power supply is supplied to battery charging module by USB port in system, and battery charging module charges to lithium battery.Battery
Store electric energy and under system boot state by the DC supply input power management module of release, final power management module is simultaneously
It powers for bluetooth module and MCU system, to maintain the operating of whole system.
Power management module is to play control and protective effect to circuit；Benefit is that charging is convenient, controllability is strong, safety
Reliably, intelligent charging management, over-voltage, overcurrent, excess temperature, short-circuit protection can be carried out.
It is shown by the color of book lamp, intuitively observes the variation of focus, allowance.Intuitive visual effect, also
It can enter to determine guidance come gompa by color change, while be used to improve environment.
Embodiment two
The difference of the present embodiment and above-described embodiment one is that increase following technology contents: the present embodiment is also to meditation
The related brain wave data of process is recorded, corresponding, and bright light process is also recorded；After meditating, underworld
Think that people can look back historical data, the matching degree of bright light process and practical meditation state is confirmed, then,
According to confirmation as a result, manually intelligence learnt, the control strategy of bright light is adjusted, so that bright light situation more can accurately be shown
Show meditation state.Wherein, control strategy includes that focus perhaps the setting of the peak of allowance and focus or is loosened
Relationship etc. between degree and the brightness of lamp.
This scheme can solve the allowance detected or focus and user's real experiences arrive it is inconsistent so as to cause
The problem of bright light process is excessively advanced or lags.
Embodiment three
The present embodiment and the difference of embodiment one are that the initial Controlling model of bright light process is to obtain in the following way
: the meditation process data of skilled gompa person is collected, manually intelligence is learnt, and initial Controlling model is formed, to bright light
Process is controlled.And therefrom obtain contemplator it is fixed from starting to sit quietly to entering during the entire process of the stage that may undergo.?
In actual use, then brain wave situation, judge contemplator be enter it is fixed during which in stage, thus adjust automatically sound
The brightness of happy or guidance voice content and volume and light, to instruct contemplator more to smoothly enter into determining state.
Claims (10)
1. a kind of brain wave book lamp, which is characterized in that including bluetooth module, signal extraction module, the LED positioned at book lamp both sides
Lamp, the signal extraction module include focus extraction module, allowance extraction module；Bluetooth module receives brain wave detector
The brain wave data of transmission, and it is sent to signal extraction module, signal extraction module is extracted in eeg data after doing dissection process
Absorbed angle value and loosen angle value, and the LED light is controlled in staged color according to the variation for loosening angle value and absorbed angle value
Variation achievees the effect that control book lamp color change with brain wave.
2. brain wave book lamp as described in claim 1, it is characterised in that signal extraction module further includes that action signal of gritting one's teeth mentions
Modulus block, for extracting signal value of gritting one's teeth；The variation of LED light is also controlled by gritting one's teeth signal, reaches active control book lamp
The effect of color change.
3. brain wave book lamp as described in claim 1, it is characterised in that further include:
Brain wave data record and bright light process record memory, for brain wave data and corresponding bright light process
It is recorded；
Bright light Developing Tactics module, for after meditation, receiving meditation people to bright light process in historical data and practical underworld
Think that the matching degree of state is confirmed, and according to confirmation as a result, the control strategy of adjustment bright light；
Wherein, control strategy includes the focus perhaps setting of the peak of allowance and focus or allowance and lamp
Brightness between relationship setting.
4. a kind of control method of brain wave book lamp, it is characterised in that include the following steps:
S1. the brain wave data that brain wave detector is sent is received, and is sent to signal extraction module；
S2. signal extraction module extracts the absorbed angle value in eeg data after doing dissection process and loosens angle value；
S3. use is reached in staged color change according to the LED light on the variation control book lamp both sides for loosening angle value and absorbed angle value
The effect of brain wave control book lamp color change.
5. the control method of brain wave book lamp as claimed in claim 4, which is characterized in that with people focus or loosen
The raising of angle value, book lamp the right and left color are slowly gathered to centre, when people focus or loosen angle value and reach peak
When, entire book lamp page color converges bright designated color together.
6. the control method of brain wave book lamp as claimed in claim 4, which is characterized in that further include following steps: extraction is stung
Tooth signal value, and LED light variation is controlled by gritting one's teeth signal, achieve the effect that active control book lamp color change, or pass through
Signal grit one's teeth to control the switching between bright light control strategy mode.
7. the control method of brain wave book lamp as claimed in claim 4, which is characterized in that further include following steps: to brain electricity
Wave number evidence and corresponding bright light process are recorded；After meditation, meditation people is received to bright light in historical data
The matching degree of process and practical meditation state confirmed, and according to confirmation as a result, the control strategy of adjustment bright light；Its
In, control strategy includes the brightness of the focus perhaps setting of the peak of allowance and focus or allowance and lamp
Between relationship setting.
8. the control method of brain wave book lamp as claimed in claim 4, which is characterized in that signal acquiring method of gritting one's teeth includes such as
Lower step:
R21, Fourier transform is carried out to the eeg signal, obtains the frequency-region signal of eeg signal；
R22, in frequency-region signal, seek the average value of the signal amplitude in particular frequency range；The average value is as letter of gritting one's teeth
Number value；Or compare the average value and a specific threshold, when the average value is greater than the threshold value, it is judged as movement of gritting one's teeth
Occur.
9. signal acquiring method according to claim 7 of gritting one's teeth, which is characterized in that the lower limit that the frequency range is is
14-16Hz, upper limit 28-32Hz；The threshold value takes without the flat of the signal amplitude grited one's teeth when acting in the particular frequency range
10-20 times of mean value.
10. a kind of computer program can be computer-executed, to realize the method as described in claim 4-9.
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| CN115054795A (en) * | 2022-05-25 | 2022-09-16 | 厦门猫一个文化创意有限公司 | Meditation support device and meditation support system |
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