CN112256129A - Multi-modal stimulation device for electroencephalogram regulation - Google Patents
Multi-modal stimulation device for electroencephalogram regulation Download PDFInfo
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- CN112256129A CN112256129A CN202011141101.2A CN202011141101A CN112256129A CN 112256129 A CN112256129 A CN 112256129A CN 202011141101 A CN202011141101 A CN 202011141101A CN 112256129 A CN112256129 A CN 112256129A
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- 230000000638 stimulation Effects 0.000 title claims abstract description 47
- 230000033228 biological regulation Effects 0.000 title claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 12
- 210000004556 brain Anatomy 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 12
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 4
- 230000009123 feedback regulation Effects 0.000 abstract description 2
- 210000005036 nerve Anatomy 0.000 abstract 1
- 238000002474 experimental method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/015—Input arrangements based on nervous system activity detection, e.g. brain waves [EEG] detection, electromyograms [EMG] detection, electrodermal response detection
Abstract
The embodiment of the invention discloses a multi-modal stimulation device for electroencephalogram regulation and control, and relates to the technical field of nerve feedback regulation and control. The multi-modal stimulation device for electroencephalogram regulation and control comprises an upper computer, a main control chip, an LED module, a VGA module, an earphone module, a motor vibrator module and a BNC module; the upper computer is connected with the main control chip, and the main control chip is respectively connected with the LED module, the VGA module, the earphone module, the motor oscillator module and the BNC module. The multi-modal stimulation device for electroencephalogram regulation comprises an upper computer, a main control chip, an LED module, a VGA module, an earphone module, a motor oscillator module and a BNC module, wherein the multi-modal stimulation device comprises five testing modules in total, the modal stimulation modes are various, a combined stimulation mode can be adopted, the stimulation mode can be flexibly adjusted, and therefore a better test effect can be achieved.
Description
Technical Field
The invention relates to the technical field of neural feedback regulation, in particular to a multi-modal stimulation device for electroencephalogram regulation.
Background
At present, electroencephalogram experimental stimulation modes are various, but most of the electroencephalogram experimental stimulation modes are single-mode stimulation and are realized by adopting a host and a screen, such as E-Prime software and the like. The method has the defects of less brain electrical stimulation modes, insignificant stimulation effect and long stimulation delay.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is how to realize multi-modal stimulation for electroencephalogram regulation and control, reduce stimulation delay and improve stimulation effectiveness.
In order to solve the above problems, an embodiment of the present invention provides a multi-modal stimulation device for electroencephalogram regulation, where the multi-modal stimulation device for electroencephalogram regulation includes an upper computer, a main control chip, an LED module, a VGA module, an earphone module, a motor oscillator module, and a BNC module; the upper computer is connected with the main control chip, and the main control chip is respectively connected with the LED module, the VGA module, the earphone module, the motor oscillator module and the BNC module.
The LED module comprises a plurality of full-color LED lamps connected in series; the main control chip is connected with all the full-color LED lamps through a first connector.
The multi-modal stimulation device for electroencephalogram regulation further comprises an installation box; the full-color LED lamp is arranged at the bottom of the smooth surface light-gathering cup, and a light screen is arranged at the top of the smooth surface light-gathering cup; the smooth surface light gathering cup is installed on the front surface of the installation box.
The further technical proposal is that the VGA module comprises a VGA interface; the main control chip is connected with the VGA interface through the second connector, the VGA interface is arranged on the top surface of the installation box, and the VGA interface is used for being connected with a display device.
The earphone module comprises a gear shifting switch and a first earphone socket, the master control chip is connected with the gear shifting switch, the gear shifting switch is connected with the first earphone socket through a third connector, and the first earphone socket is used for being connected with an earphone.
The technical scheme is that the gear shifting switch comprises a knob, and a first earphone socket and the knob are arranged on the top surface of the installation box.
The motor vibrator module comprises a second earphone socket, an earphone plug and a vibration motor; the main control chip is connected with a second earphone socket through a fourth connector, and an earphone plug is connected with the vibration motor; the earphone plug is connected with the second earphone socket in a pluggable manner; the second earphone socket is arranged on the top surface of the installation box.
The further technical scheme is that the BNC module comprises a plurality of BNC interfaces; the main control chip is connected with each BNC interface through a fifth connector respectively.
The further technical proposal is that the BNC interface is connected with the electrical stimulator through a BNC line.
The further technical scheme is that the main control chip is an Arduino Due chip.
Compared with the prior art, the embodiment of the invention can achieve the following technical effects:
the multi-modal stimulation device for electroencephalogram regulation comprises an upper computer, a main control chip, an LED module, a VGA module, an earphone module, a motor oscillator module and a BNC module, wherein the multi-modal stimulation device comprises five testing modules in total, the modal stimulation modes are various, a combined stimulation mode can be adopted, the stimulation mode can be flexibly adjusted, and therefore a better test effect can be achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a block diagram of a multi-modal stimulation device for electroencephalogram control according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a multi-modal stimulation apparatus for electroencephalogram modulation according to an embodiment of the present invention;
fig. 3 is a front view of a multi-modal stimulation apparatus for brain electrical stimulation according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a smooth surface light-gathering cup and a light shielding plate of the multi-modal stimulation device for electroencephalogram control according to the embodiment of the present invention.
Fig. 5 is a schematic connection diagram of an earphone plug and a vibration motor of the multi-modal stimulation device for electroencephalogram control according to the embodiment of the present invention.
Reference numerals
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, wherein like reference numerals represent like elements in the drawings. It is apparent that the embodiments to be described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the embodiments of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention. As used in the description of embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Referring to fig. 1-5, an embodiment of the present invention provides a multi-modal stimulation device for brain electrical brain modulation. As can be seen from the figure, the multi-modal stimulation apparatus includes an upper computer 10, a main control chip 20, an LED module 30, a VGA module 40, an earphone module 50, a motor oscillator module 60, and a BNC module 70.
The upper computer 10 is connected with the main control chip 20, and the main control chip 20 is respectively connected with the LED module 30, the VGA module 40, the earphone module 50, the motor oscillator module 60 and the BNC module 70. The upper computer 10 sends a control instruction to the main control chip 20 to control the operating states of the LED module 30, the VGA module 40, the earphone module 50, the motor vibrator module 60, and the BNC module 70.
Further, the LED module 30 includes a plurality of full-color LED lamps 31 connected in series; the main control chip 20 is connected to each full-color LED lamp 31 through a first connector (CN6-CN 11). The first connector (CN6-CN11) is a 3pin wire to board/wire to wire connector. The first connector (CN6-CN11) is connected to the pin 7 of the main control chip 20 and controlled by the pin 7 of the main control chip 20.
Specifically, the model number of the full-color LED lamp 31 is WS 2812B. Each full-color LED lamp 31 includes a control circuit and a light-emitting circuit, which form a complete controllable pixel. The RGB three primary colors in each pixel point can realize 256-level brightness adjustment, and 16777216 colors can be generated through different combinations. When a plurality of full-color LED lamps 31 are cascaded in series, only 1 signal line is needed to receive and decode data. The data transmission time is in microsecond level, and the requirement on time precision in an electroencephalogram experiment is met. And the light colors of the LED lamp are highly consistent, so that the difference of experimental results caused by equipment difference is avoided.
Further, the multi-modal stimulation device for brain electrical regulation further comprises an installation box 80; the full-color LED lamp 31 is arranged at the bottom of the smooth surface light-gathering cup 90, and a light shielding plate 100 is arranged at the top of the smooth surface light-gathering cup 90; the smooth surface light-gathering cup 90 is installed on the front surface of the installation box 80. The smooth condenser cup 90 performs a condensing function. The color of the light shielding plate 100 can be milky white, and the light shielding plate 100 can prevent the light intensity from being too strong during the experiment, so that the discomfort of the human body is caused, and the experiment result is influenced.
Further, the VGA module 40 includes a VGA interface 401; the main control chip 20 is connected with the VGA interface 401 through the second connector P1, the VGA interface 401 is disposed on the top surface of the installation box 80, and the VGA interface 401 is used for being connected with a display device. The second connector P1 is a 6pin wire to board/wire pair connector. The second connector P1 is connected to the pins 34-43 of the main control chip 20, respectively.
It should be noted that the VGA signal is mainly composed of the following components:
1) horizontal sync;
2) vertical sync (Vertical sync);
3) red (Red);
4) green (Green);
5) blue (Blue);
the scanning sequence of the VGA signals on the screen is from left to right, from top to bottom, line signal prompting line feed is generated after one-line scanning is finished, and field signal (vertical signal) prompting field feed is generated after one-field scanning is finished.
The pin control and corresponding circuit resistance settings for the VGA module 40 are shown in table 1 below:
TABLE 1 VGA Module 40 Pin connection and resistance setting
Further, the earphone module 50 includes a shift switch SW1 and a first earphone socket 502 (specifically, a 3.5mm earphone socket), the main control chip 20 is connected to the shift switch SW1, the shift switch SW1 is connected to the first earphone socket 502 through a third connector CN5, and the first earphone socket 502 is used for being connected to an earphone. The third connector CN5 is a 2pin wire to board/wire to wire connector. The third connector CN5 is connected to pins 6 to 10 of the shift switch SW1, respectively. The pins 1 to 5 of the shift switch SW1 are connected to the pin 9 of the main control chip, and the resistances of the pins 1 to 5 of the shift switch SW1 are different from each other.
Further, the shift switch SW1 includes a knob 501, and the first earphone socket 502 and the knob 501 are disposed on the top surface of the mounting box 80. The gear shifting switch SW1 has 4 gears in total, can let earphone sound change from small to big, mainly with earphone volume adjustment to the comfortable size of being tried on, convenient experiment.
Further, the motor vibrator module 60 includes a second earphone socket 601 (specifically, a 3.5mm earphone socket), an earphone plug 602, and a vibration motor 603; the main control chip 20 is connected with the second earphone socket 601 through a fourth connector CN4, and the earphone plug 602 is connected with the vibration motor 603; the earphone plug 602 is connected with the second earphone socket 601 in a pluggable manner; the second earphone socket 601 is provided on the top surface of the mounting case 80. The fourth connector CN4 is a 2pin wire to board/wire to wire connector. The fourth connector CN4 is connected to the pin 46 of the main control chip 20 and controlled by the pin 46 of the main control chip 20.
The motor vibrator module 60 also uses 1 3.5ms earphone jack. The vibration motor 603 adopts a circular flat vibration motor 603 of the mobile phone, and is connected with the 3.5ms earphone plug 602 after transformation, and only needs to be inserted into the second earphone socket 601 corresponding to the motor vibrator module 60 during use.
Further, the BNC module 70 comprises a plurality of BNC interfaces 701; the main control chip 20 is connected to each BNC interface 701 through a fifth connector (CN1-CN 3). The fifth connector (CN1-CN3) is a 2pin wire to board/wire to wire connector. The fifth connector CN1 is connected to the pin 52 of the main control chip 20. The fifth connector CN2 is connected to the pin 50 of the main control chip 20. The fifth connector CN3 is connected to the pin 48 of the main control chip 20.
The BNC module 70 has a total of 3 BNC interfaces 701, which are respectively controlled by the main control chip 20.
Further, BNC interface 701 is connected to an electrical stimulator through a BNC line.
Further, the main control chip 20 is an Arduino die chip.
The Arduino Due chip is a microcontroller board based on Atmel SAM3X8E CPU, and it is also the first Arduino based on a 32-bit ARM core. The device comprises 54 digital IO ports (12 of the digital IO ports can be used for PWM output), 12 analog input ports, 4 paths of UART hardware serial ports, 84MHz clock frequency, a USB OTG interface, two paths of DAC (analog-to-digital conversion), two paths of TWI, a power socket, an SPI interface, a JTAG interface, a reset key and an erasing key.
The Due using the 32-bit ARM core is more powerful than other Arduino using the 8-bit AVR core in the past, and has the following main advantages:
1) more input/output ports;
2) one clock can process 32 bits of data;
3) a CPU clock frequency of 84 Mhz;
4)96KBytes SRAM;
5) flash of 512 KBytes;
6)1 DMA controller can reduce the pressure of CPU in doing a large amount of operations.
Specifically, in the embodiment of the present invention, the LED module 30 is controlled through the pin 7 of the Arduino Due chip, and the full-color LED lamp 31 can be conveniently controlled by combining the Adafruit _ NeoPixel library file during programming.
The headphone module 50 is controlled via pin 9 of the Arduino die chip.
The motor oscillator module 60 is controlled by pin 46 of the Arduino die chip.
The BNC module 70 has a total of 3 BNC interfaces 701, which are controlled by pins 52, 50 and 48 of the Arduino die chip, respectively.
Further, the upper computer 10 may be embodied as a computer.
Technical effects
The invention mainly comprises 5 functional modules, namely an LED module, a VGA module, an earphone module, a motor oscillator module and a BNC module. Wherein, the LED module is located the experiment box openly, makes things convenient for the experiment to be tried to watch, and the interface of all the other modules is located the experiment box top, conveniently connects other electronic component, and concrete effect is as follows:
1. LED module
The LED module comprises 6 full-color LED lamps, passes through USB control by the host computer, can realize independently controlling each full-color LED lamp. For example, all full-color LED lamps can display white or red, or a certain full-color LED lamp can display a specific color.
If the upper computer sends a control signal according to the fixed frequency, the full-color LED lamp can flicker according to the corresponding frequency.
2. VGA module
After the VGA interface of the display is connected to the equipment, the preset pattern can be stably displayed on the display.
3. Earphone module
After the earphone is inserted into the earphone jack, the sound of the earphone is controlled by the upper computer, and the volume of the sound in the earphone can be changed by adjusting the knob.
4. Motor vibrator module
And the modified motor oscillator is inserted into the second earphone socket, and the motor can vibrate and stop under the control of the upper computer.
5. BNC module
The device is connected with an electrical stimulator by a BNC wire, the BNC state is controlled by an upper computer, and the electrical stimulator is indirectly controlled to generate electrical stimulation according to a control signal.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, while the invention has been described with respect to the above-described embodiments, it will be understood that the invention is not limited thereto but may be embodied with various modifications and changes.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A multi-modal stimulation device for electroencephalogram regulation and control is characterized by comprising an upper computer, a main control chip, an LED module, a VGA module, an earphone module, a motor vibrator module and a BNC module; the upper computer is connected with the main control chip, and the main control chip is respectively connected with the LED module, the VGA module, the earphone module, the motor oscillator module and the BNC module.
2. The multi-modal stimulation device for brain electrical activity modulation of claim 1, wherein the LED module comprises a plurality of series connected full color LED lights; the main control chip is connected with all the full-color LED lamps through a first connector.
3. The multi-modal stimulation device for brain electrical activity management of claim 2, further comprising an installation case; the full-color LED lamp is arranged at the bottom of the smooth surface light-gathering cup, and a light screen is arranged at the top of the smooth surface light-gathering cup; the smooth surface light gathering cup is installed on the front surface of the installation box.
4. The multi-modal stimulation device for brain electrical regulation of claim 3, wherein the VGA module comprises a VGA interface; the main control chip is connected with the VGA interface through the second connector, the VGA interface is arranged on the top surface of the installation box, and the VGA interface is used for being connected with a display device.
5. The multi-modal stimulation device for electroencephalogram modulation and control as recited in claim 3, wherein the earphone module comprises a shift switch and a first earphone socket, the main control chip is connected with the shift switch, the shift switch is connected with the first earphone socket through a third connector, and the first earphone socket is used for being connected with an earphone.
6. The multi-modal stimulation device for brain electrical activity modulation of claim 4, wherein the shift switch comprises a knob, and the first earphone socket and the knob are disposed on the top surface of the mounting box.
7. The multi-modal stimulation device for brain electrical activity modulation of claim 3, wherein the motor vibrator module comprises a second earphone socket, an earphone plug and a vibration motor; the main control chip is connected with a second earphone socket through a fourth connector, and an earphone plug is connected with the vibration motor; the earphone plug is connected with the second earphone socket in a pluggable manner; the second earphone socket is arranged on the top surface of the installation box.
8. The multimodal stimulation apparatus for brain electrical modulation according to claim 3, wherein the BNC module comprises a plurality of BNC interfaces; the main control chip is connected with each BNC interface through a fifth connector respectively.
9. The multi-modal stimulation device for brain electrical activity modification of claim 8, wherein the BNC interface is connected to the electrical stimulator through a BNC wire.
10. The multi-modal stimulation device for brain electrical activity modulation of claim 1, wherein the master control chip is an Arduino Due chip.
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| CN202011141101.2A CN112256129A (en) | 2020-10-22 | 2020-10-22 | Multi-modal stimulation device for electroencephalogram regulation |
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| CN202011141101.2A CN112256129A (en) | 2020-10-22 | 2020-10-22 | Multi-modal stimulation device for electroencephalogram regulation |
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Citations (4)
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|---|---|---|---|---|
| US5549118A (en) * | 1993-09-22 | 1996-08-27 | New York University | Simultaneous testing of two motor capabilities of a human subject |
| CN201667056U (en) * | 2009-12-21 | 2010-12-08 | 中国人民解放军第三军医大学第三附属医院 | Brain-machine interface visual stimulating device based on programmable gate array |
| CN110413116A (en) * | 2019-07-24 | 2019-11-05 | 西安交通大学 | A kind of Steady State Visual Evoked Potential brain-computer interface design method based on FPGA |
| WO2019211845A1 (en) * | 2018-05-01 | 2019-11-07 | Brainsway Ltd. | Device and method for real-time closed-loop brain stimulation |
-
2020
- 2020-10-22 CN CN202011141101.2A patent/CN112256129A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5549118A (en) * | 1993-09-22 | 1996-08-27 | New York University | Simultaneous testing of two motor capabilities of a human subject |
| CN201667056U (en) * | 2009-12-21 | 2010-12-08 | 中国人民解放军第三军医大学第三附属医院 | Brain-machine interface visual stimulating device based on programmable gate array |
| WO2019211845A1 (en) * | 2018-05-01 | 2019-11-07 | Brainsway Ltd. | Device and method for real-time closed-loop brain stimulation |
| CN110413116A (en) * | 2019-07-24 | 2019-11-05 | 西安交通大学 | A kind of Steady State Visual Evoked Potential brain-computer interface design method based on FPGA |
Non-Patent Citations (3)
| Title |
|---|
| KONSTANTIN V. DANILENKO ET AL.: "Effectiveness of Visual vs. Acoustic Closed-Loop Stimulation on EEG Power Density during NREM Sleep in Humans", 《CLOCK&SLEEP》 * |
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| 常宇: "基于运动想象的脑电信号分析与脑机接口系统设计", 《中国优秀硕士学位论文全文数据库 基础科学辑》 * |
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