CN110062495B - Brain wave book lamp and control method thereof - Google Patents
Brain wave book lamp and control method thereof Download PDFInfo
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- CN110062495B CN110062495B CN201910244926.8A CN201910244926A CN110062495B CN 110062495 B CN110062495 B CN 110062495B CN 201910244926 A CN201910244926 A CN 201910244926A CN 110062495 B CN110062495 B CN 110062495B
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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
The invention discloses a brain wave book lamp and a control method thereof, wherein the book lamp comprises a Bluetooth module, a signal extraction module and an LED lamp, wherein the signal extraction module comprises a concentration extraction module and a relaxation extraction module; the Bluetooth module receives brain wave data sent by the brain wave detector and transmits the brain wave data to the signal extraction module, the signal extraction module extracts a concentration degree value and a relaxation degree value in the brain wave data after analysis processing, and the LED lamps on two sides of the book lamp are controlled to be in stepped color change according to the change of the relaxation degree value and the concentration degree value, so that the effect of controlling the color change of the book lamp by brain waves is achieved. The invention visually observes the change of concentration and relaxation degree through the color display of the book lamp. The visual effect can be visualized, and the Buddhist insertion guiding can be realized through color change, and the visual effect is also used for improving the environmental atmosphere.
Description
Technical Field
The invention relates to the field of brain wave control electronic products, in particular to a book lamp capable of being controlled by brain waves and a control method thereof.
Background
With the pace of life increasing, modern people increasingly need a way to relax their mind and body. The sitting-in is becoming a good way for people to promote physical and mental health. However, the method of sitting and entering the seat is often difficult to master by ordinary people, and the seat is often difficult to enter the seat, or the seat is not yet known or is unclear as to which stage of the entering process.
The market has appeared a kind of book lamp product, because its light is emitted on the whole surface of the page, so its light is soft and uniform, and is very suitable for regulating on-site atmosphere when sitting. However, in such a book lamp product, the light is fixed or changed in a fixed manner during the sitting process, and the promotion effect on the sitting and entering-in-setting is limited, so that the problem that a common beginner is difficult to enter-in cannot be solved.
Disclosure of Invention
The invention aims to provide a brain wave book lamp and a control method thereof, which provide better sitting and sitting guidance for a sitter.
Therefore, the brain wave book lamp provided by the invention comprises a Bluetooth module, a signal extraction module and LED lamps positioned at two sides of the book lamp, wherein the signal extraction module comprises a concentration degree extraction module and a relaxation degree extraction module; the Bluetooth module receives brain wave data sent by the brain wave detector and transmits the brain wave data to the signal extraction module, the signal extraction module extracts a concentration degree value and a relaxation degree value in the brain wave data after analysis processing, and the LED lamp is controlled to be in stepped color change according to the change of the relaxation degree value and the concentration degree value, so that the effect of controlling the color change of the book lamp by brain waves is achieved.
In some embodiments, the invention also includes the following features:
the signal extraction module also comprises a tooth biting action signal extraction module for extracting tooth biting signal values; the change of the LED lamp is controlled by a tooth biting signal, so that the effect of actively controlling the color change of the book lamp is achieved.
The brain wave data recording and lighting process recording memory is used for recording the brain wave data and the lighting process corresponding to ; a lighting strategy adjusting module for confirming the conformity degree of the lighting processes and in the history data of the received meditation people to the actual meditation states after the meditation is finished, and adjusts a lighting control strategy of according to the confirmed result; wherein the control strategy comprises a setting of a maximum value of the concentration or the release and a setting of a relation between the concentration or the release and the brightness of the lamp.
The invention also provides a control method of the brain wave book lamp, which comprises the following steps: s1, receiving electroencephalogram data sent by an electroencephalogram detector and transmitting the electroencephalogram data to a signal extraction module; s2, the signal extraction module extracts a concentration value and a relaxation value in the electroencephalogram data after analysis processing; and S3, controlling the LED lamps on the two sides of the book lamp to change in a stepped color according to the change of the relaxation degree value and the concentration degree value, so as to achieve the effect of controlling the color change of the book lamp by using brain waves.
In some embodiments, the following features are also included:
along with the rising of people's concentration degree or relaxation degree value, the both sides colour is slowly gathered together to the centre about the book lamp, and when people's concentration degree or relaxation degree value reached the highest value, whole book lamp page colour assembles and brightens appointed colour together.
Also comprises the following steps: and extracting a tooth biting signal value, and controlling the change of the LED lamp through a tooth biting signal to achieve the effect of actively controlling the color change of the book lamp, or controlling the switching between lighting control strategy modes through the tooth biting signal.
Recording the brain wave data and the lighting process corresponding to ; after the meditation is finished, the receiving meditation confirms the conformity degree of the lighting processes and in the historical data to the actual meditation state , and adjusts the lighting control strategy according to the confirmed result; wherein the control strategy comprises a setting of a maximum value of the concentration or the release and a setting of a relation between the concentration or the release and the brightness of the lamp.
R21, carrying out Fourier transform on the brain wave signals to obtain frequency domain signals of the brain wave signals; r22, averaging the signal amplitudes in a specific frequency range in the frequency domain signal; the average value is used as a tooth biting signal value; or comparing the average value with a specific threshold value, and judging that the biting action occurs when the average value is greater than the threshold value.
The lower limit of the frequency range is 14-16Hz, and the upper limit is 28-32 Hz.
The threshold is 10-20 times the average of the signal amplitudes in the specific frequency range without a biting action.
The invention also relates to a computer program which can be executed by a computer to implement the above-mentioned method.
The invention has the beneficial effects that: the invention visually observes the change of concentration and relaxation degree through the color display of the book lamp. The visual effect can be visualized, and the Buddhist insertion guiding can be realized through color change, and the visual effect is also used for improving the environmental atmosphere.
Further advantageous effects of the present invention are illustrated by the following examples.
Drawings
FIG. 1 is a diagram of a control framework of a brain wave book light system in accordance with an embodiment of the present invention;
fig. 2A, 2B and 2C are schematic diagrams of three different states of the brain wave book light used in the embodiment of the present invention during the turning on process.
FIG. 3 is a flow chart of an embodiment of the present invention.
Fig. 4 is a flowchart illustrating a method for acquiring a tooth biting signal according to an embodiment of the present invention.
Detailed Description
Example one
Summary of the invention
Fig. 1 is a control frame diagram of the electroencephalogram book light system according to the present embodiment. The brain wave detector (such as a head-wearing brain wave collector) BrainLink acquires original brain wave data of a human brain and sends the data out through Bluetooth of the BrainLink in a specific format, a Bluetooth module in a book lamp system receives the brain wave data sent by the BrainLink and transmits the data to each extraction module of a book lamp through a serial port, the extraction module comprises a concentration degree extraction module, a tooth biting action signal (called tooth biting signal for short) extraction module and a looseness extraction module, each extraction module extracts a concentration degree value, a looseness value and a tooth biting signal value in the brain wave data after analysis processing, and the LED lamps on two sides are controlled to be in stepped color change according to the change of the looseness value and the concentration degree value in sequence, the change of the LED lamps can be controlled through the tooth biting signal at the same time, and the effect of controlling the color change of the book lamp through the brain waves is finally achieved.
Fig. 2A, 2B and 2C are schematic diagrams illustrating three states of the book lamp used in the present embodiment. As can be seen from fig. 2A, 2B, and 2C, when the book light is turned on, a plurality of pages are spread radially side by side, so that a soft light effect is naturally formed, and the pages naturally form a step with light continuously adjusted, so that the book light is adopted for guiding sitting and sitting.
Second, application implementation
The brain wave chip TGAT on the brain wave detector brain Link acquires concentration degree, relaxation degree and signal quality value (signal), and after the three values are subjected to filtering processing, the display of the book lamp is controlled by each subsequent control module, and each control module comprises a concentration degree control module, a tooth biting action control module and a relaxation degree control module.
Wherein, the brain wave processing unit adopts a brain wave chip TGAT. TGAT is a brain wave chip of the Shenmonics company, the chip is a highly integrated single-chip electroencephalogram sensor, and can output three Neurosky eSense parameters through the detection of three electrodes EEG, REF and SHIELD, perform analog-to-digital conversion, detect abnormal states of poor contact and express the abnormal states through signal quality values 'signal' or 'por signal', filter out electric eye noise and 50/60hz alternating current interference, and acquire RAW (original value of signal) data of brain wave signals and signal quality signal values. The signal is a byte unsigned integer variable and is used for describing the signal quality measured by ThinkGear of Neurosky science and technology, and the value range of the signal is 0-200. When external noise interference signals are introduced, the signal value is larger than 0, and the acquisition equipment is disconnected. A higher signal value means a higher interference, which when the value is 200 indicates that the sensor contact electrode is completely removed from the user's skin. Only under the condition that the signal value is 0, the acquisition, the processing and the operation are carried out.
Control description:
left side: the color of the book lamp changes from light blue to dark blue according to the change of the relaxation value.
When the looseness is larger than 50, the looseness is in the direction from low to high, and the brightness of the green lamp is changed along with the looseness; and updating the degree of looseness when the degree of looseness gradually increases or decreases, and updating the brightness of the red light according to the degree of looseness, wherein the red light is normally on, and the blue light is off.
When the releasing degree is less than 50, the blue light is changed along with the releasing degree from low to high, the red light is normally on, and the green light is off.
This is the first display mode, which is dedicated to the case of displaying the degree of looseness.
And on the right: the color of the book light changes from light red to dark red according to the change of the concentration value.
In the direction of the concentration degree from low to high, the blue light changes along with the concentration degree, the green light is normally on, and the red light is off; and updating the concentration degree when the concentration degree is gradually increased or decreased, and updating the brightness of the blue lamp according to the concentration degree.
This is the second display mode, and is dedicated to the case of displaying concentration.
Guiding meditation and insertion: when the concentration degree or the relaxation degree value of the person reaches the highest value, the colors of the left side and the right side of the book lamp are gradually gathered towards the middle, and finally the colors of the page of the whole book lamp are gathered together to be bright red or white. The maximum value of the concentration degree or the release degree is initially set by the default of the machine, and then can be set by the user.
This is the third display mode, which is dedicated to displaying meditation and meditation.
Only one of the lighting control strategies is described above. In other embodiments, there may be other lighting control strategies and the lighting control strategy modes may be switched between, for example, with a bite signal as described below.
Controlling the teeth biting: the left side and the right side can control the switching between the lighting control strategy modes through biting, the whole LED lamp of the book lamp can change the color during the switching, and the switching is performed according to seven sequences of red, orange, yellow, green, blue, indigo and purple, so that the switching state can be displayed conveniently. This is the fourth display mode, which is dedicated to displaying the bite control state.
Furthermore, the teeth biting not only realizes the control of the LED lamp to change different colors, but also can control the switching of the lighting control strategy mode. Because the manual operation is inconvenient when the user sits on the chair, the user can control the chair through the tooth biting signal if the user wants to switch the color. The method for acquiring the biting signal is described below.
Or the biting signal can be used to realize switching to different meditation phases under the same lighting control strategy mode. Since the meditation enters different phases showing different lighting patterns, if the meditation feels that the current lighting pattern does not coincide with the meditation phase in which it is actually located, it is possible to switch by biting until it coincides with the actual phase which it feels. Although the concentration or release of the teeth may be affected by the biting, each control module can at least know the correct state before the biting and modify its mode control strategy accordingly.
Fig. 3 is a schematic control flow diagram of the present embodiment.
Third, additional description
The status light of the status indication module in the system has the main functions:
1. when the book lamp system is charging, the red lamp in the charging indicator lamp is normally on, and the red lamp is turned off after the book lamp system is fully charged;
2. when the Bluetooth in the book lamp system is not connected with the BrainLink, the red lamp flashes, the blue lamp flashes slowly, and after the connection is successful, the red lamp is turned off, and the blue lamp flashes quickly;
3. the book lamp can be used by turning on the book lamp in a common mode (without connecting the book link), the color of the book lamp can be changed when the book lamp is opened and closed every time, and the book lamp can be opened and erected at 360 degrees;
4. the book lamp is turned on in the brain wave mode, and then the brain link is turned on, so that the Bluetooth connection can be automatically carried out; after the connection is successful, the book lamp can generate rainbow light animation for one second, and the connection is successful.
Method for acquiring biting signal
As shown in fig. 4, the bite signal for controlling the book light may be acquired as follows: the initial signal values (RAW values) collected per second are first fourier transformed and then averaged over the range of 15-30 Hz.
In this example, the fourier operation is 512 points, and it can be understood that 512 data are collected, and the data after transformation are distributed on 512 points.
The average value of the signal in the range of 15-30Hz is calculated. The inventor finds that the average value of 512 points in the frequency range of 15-30Hz may have an amplitude value of only 100 when no action is performed, and the amplitude value of teeth (teeth which cause part of the points to become larger) is more than 1000 when the teeth are bitten.
Accordingly, the present embodiment bite algorithm is referenced by the average of the signal amplitudes in the 15-30Hz frequency range.
After obtaining this average value, the present embodiment may have a two-recipe formula to utilize this value.
Firstly, the calculated average value is used as a tooth biting signal value for controlling the book light, and the larger the signal value is, the larger the switching of the lighting mode of the book light is.
And secondly, judging whether the teeth biting action is available or unavailable. In this example, the threshold for judging the presence or absence is 1500, and when the average value is larger than 1500, it is judged that there is a biting action, otherwise it is judged that there is no biting action. In practice, the threshold value may be selected from 500-. And then, the lighting mode of the book lamp is controlled by judging whether the biting action is performed or not, such as: when the teeth biting action is performed, the lighting mode of a reading lamp is switched, the teeth biting action is repeatedly switched for a plurality of times, and the mode is switched every time the teeth biting action is performed.
Although the frequency range of 15-30Hz is exactly overlapped with the range of the beta wave in the brain wave, the present embodiment can very accurately distinguish the beta wave by reasonably setting the amplitude threshold. The brain wave is in a beta wave state most of the time when people are awake, but as is obvious from the comparison between a beta wave diagram (omitted) and a tooth biting signal diagram (omitted), the wave amplitude of the beta wave in a frequency domain is obviously smaller than that of a tooth biting signal, the amplitude of the beta wave in the frequency domain is obviously different from that of the tooth biting signal, and the two signals can not cause confusion, the average amplitude of the beta wave signal in a corresponding frequency range does not reach 5 times of the average value at ordinary times, therefore, the 5-200 times of the average value in the absence of tooth biting action is selected as a judgment threshold value for judging whether the tooth biting action exists or not, and the beta wave is enough to be distinguished. If the multiple is chosen to be 10-20 times, more accurate discrimination is possible. Based on this, we can even directly use the frequency range of the beta wave as the frequency range we take the average.
The discrimination between the tooth biting signal and the beta wave can also be realized by the combined analysis of time domain and frequency domain. For example, a pattern recognizer can be constructed through artificial intelligence machine learning, and the biting signal and the beta wave signal are recognized according to the difference of signal waveforms of the biting signal and the beta wave signal in a time domain and a frequency domain. Even in the frequency domain, the β -wave signal and the tooth biting signal are in the same frequency band, but the waveforms of the two signals are still very different, and therefore, it is feasible to distinguish the two signals from each other in terms of the waveforms.
The main functions of the battery charging and power management module in the system are as follows:
the USB port in the system provides 5V power supply for the battery charging module, and the battery charging module charges the lithium battery. The battery stores electric energy and inputs the released direct current into the power management module in a system startup state, and finally the power management module supplies power to the Bluetooth module and the MCU system simultaneously so as to maintain the operation of the whole system.
The power management module is used for controlling and protecting the circuit; the intelligent charging system has the advantages of convenience in charging, strong controllability, safety, reliability, intelligent charging management and overvoltage, overcurrent, overtemperature and short-circuit protection.
The color of the book lamp is displayed, and the change of concentration and relaxation can be visually observed. The visual effect can be visualized, and the Buddhist insertion guiding can be realized through color change, and the visual effect is also used for improving the environmental atmosphere.
Example two
The present embodiment is different from the first embodiment in that the following technical contents are added: the embodiment also records the related electroencephalogram data of the meditation process , corresponds to the data, and the lighting process is also recorded; after the meditation is finished, the meditation people can review the historical data , the matching degree of the lighting processes and of the actual meditation states is confirmed , , learns with artificial intelligence according to the confirmed result, and the lighting control strategy is adjusted , so that the lighting conditions can more accurately display the meditation states. The control strategy includes setting of the highest value of the concentration or the release, and the relationship between the concentration or the release and the brightness of the lamp.
This approach may solve the problem of detected degrees of looseness or concentration not being consistent with what the user actually experiences, resulting in a lighting process that is too early or late.
EXAMPLE III
The present embodiment is different from the first embodiment in that the initial control model of the lighting process is obtained as follows: data of meditation process of skilled meditation persons are collected and learned through artificial intelligence, an initial control model is formed, and the lighting process is controlled. And from which the phases that the meditation is likely to go through from the beginning of sitting still to the entering. In actual use, the meditation person is judged to enter into which stage of the entering process according to the brain wave condition, so that the content and volume of music or guide voice and the brightness of light are automatically adjusted to guide the meditation person to enter into the entering state more smoothly.
Claims (7)
1. The brain wave book lamp is characterized by comprising a Bluetooth module, a signal extraction module and LED lamps positioned at two sides of the book lamp, wherein the signal extraction module comprises a concentration degree extraction module and a relaxation degree extraction module; the Bluetooth module receives brain wave data sent by the brain wave detector and transmits the brain wave data to the signal extraction module, the signal extraction module extracts a concentration value and a relaxation value in the brain wave data after analysis processing, and the LED lamp is controlled to change in a stepped color according to the change of the relaxation value and the concentration value, so that the effect of controlling the color change of the book lamp by brain waves is achieved;
the signal extraction module also comprises a tooth biting action signal extraction module for extracting tooth biting signal values; the change of the LED lamp is also controlled by a tooth biting signal, so that the effect of actively controlling the color change of the book lamp is achieved;
the method for acquiring the biting signal comprises the following steps:
r21, carrying out Fourier transform on the brain wave signal to obtain a frequency domain signal of the brain wave signal;
r22, averaging the signal amplitudes in a specific frequency range in the frequency domain signal; the average value is used as a tooth biting signal value;
the frequency range is 15-30 Hz.
2. The brain wave book light of claim 1, further comprising:
the brain wave data recording and lighting process recording memory is used for recording the brain wave data and the lighting process corresponding to ;
a lighting strategy adjusting module for confirming the conformity degree of the lighting processes and in the history data of the received meditation people to the actual meditation states after the meditation is finished, and adjusts a lighting control strategy of according to the confirmed result;
wherein the control strategy comprises setting of the highest value of the concentration degree or the relaxation degree and setting of the relation between the concentration degree or the relaxation degree and the brightness of the lamp;
step R22 further includes:
comparing the average value with a specific threshold value, and judging that the biting action occurs when the average value is greater than the threshold value; wherein; the threshold is 10-20 times the average of the signal amplitudes in the specific frequency range without biting action to distinguish beta waves.
3. A control method of brain wave book lamp is characterized by comprising the following steps:
s1, receiving electroencephalogram data sent by an electroencephalogram detector and transmitting the electroencephalogram data to a signal extraction module;
s2, the signal extraction module extracts a concentration value and a relaxation value in the electroencephalogram data after analysis processing;
s3, controlling the LED lamps on the two sides of the book lamp to change in a stepped color according to the change of the relaxation degree value and the concentration degree value, so as to achieve the effect of controlling the color change of the book lamp by using brain waves;
also comprises the following steps: extracting a tooth biting signal value, and controlling the change of the LED lamp through the tooth biting signal to achieve the effect of actively controlling the color change of the book lamp;
the method for acquiring the biting signal comprises the following steps:
r21, carrying out Fourier transform on the brain wave signal to obtain a frequency domain signal of the brain wave signal;
r22, averaging the signal amplitudes in a specific frequency range in the frequency domain signal; the average value is used as a tooth biting signal value;
the frequency range is 15-30 Hz.
4. The method as claimed in claim 3, wherein the colors of the left and right sides of the book light are gradually gathered toward the center as the concentration or relaxation of the person increases, and when the concentration or relaxation of the person reaches a maximum value, the colors of the entire page of the book light are gathered together to light the designated color.
5. The control method of brain wave book lamp of claim 3,
step R22 further includes:
comparing the average value with a specific threshold value, and judging that the biting action occurs when the average value is greater than the threshold value; wherein; the threshold is 10-20 times the average of the signal amplitudes in the specific frequency range without biting action to distinguish beta waves.
6. The method for controlling brain wave book lamps of claim 3, further comprising the steps of: recording the brain wave data and the lighting process corresponding to ; after the meditation is finished, the receiving meditation confirms the conformity degree of the lighting processes and in the historical data to the actual meditation state , and adjusts the lighting control strategy according to the confirmed result; wherein the control strategy comprises a setting of a maximum value of the concentration or the release and a setting of a relation between the concentration or the release and the brightness of the lamp.
7. A computer program executable by a computer to implement the method of claims 3-6.
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| CN112057069B (en) * | 2020-09-14 | 2023-11-21 | 中国刑事警察学院 | Wireless wearing helmet system based on brain wave inspection |
| CN115054795B (en) * | 2022-05-25 | 2024-02-06 | 厦门猫一个文化创意有限公司 | Meditation assistance device and meditation assistance system |
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| CN204765634U (en) * | 2015-01-26 | 2015-11-18 | 周常安 | Wearing formula physiology detection device |
| CN104665785A (en) * | 2015-01-26 | 2015-06-03 | 周常安 | Biofeedback system |
| CN204813837U (en) * | 2015-01-26 | 2015-12-02 | 周常安 | Physiology feedback system |
| CN104665787A (en) * | 2015-01-26 | 2015-06-03 | 周常安 | Biofeedback system |
| CN204839481U (en) * | 2015-01-26 | 2015-12-09 | 周常安 | Physiology feedback system |
| CN204839484U (en) * | 2015-01-26 | 2015-12-09 | 周常安 | Physiology feedback system |
| CN204839482U (en) * | 2015-01-26 | 2015-12-09 | 周常安 | Illuminator and use this illuminator's physiology feedback system |
| CN204839483U (en) * | 2015-01-26 | 2015-12-09 | 周常安 | Wearing formula physiology detection device |
| CN205073668U (en) * | 2015-09-09 | 2016-03-09 | 北京视友科技有限责任公司 | Toy train of brain electric control |
| CN205139861U (en) * | 2015-11-14 | 2016-04-06 | 深圳市前海安测信息技术有限公司 | A intelligent mouse pad for wrist massage |
| JP2017103059A (en) * | 2015-11-30 | 2017-06-08 | パナソニックＩｐマネジメント株式会社 | Illumination system and program |
| CN205697765U (en) * | 2016-03-08 | 2016-11-23 | 江苏信息职业技术学院 | A kind of water pond vibrating device based on brain electricity feedback control |
| CN107450559A (en) * | 2017-09-12 | 2017-12-08 | 深圳市宏智力科技有限公司 | Method and device based on brain wave control spider robot movement |
| CN108320070A (en) * | 2017-12-22 | 2018-07-24 | 新华网股份有限公司 | Quality of instruction assessment method and system |
| CN109062399A (en) * | 2018-06-20 | 2018-12-21 | 新华网股份有限公司 | The evaluating method and system of multimedia messages |
| CN109063954A (en) * | 2018-06-20 | 2018-12-21 | 新华网股份有限公司 | The assessment method and system of teachers ' teaching |
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