CN105049972A - Near field communication (NFC) based multiband high-sensitivity brain wave sensing bluetooth earphone - Google Patents
Near field communication (NFC) based multiband high-sensitivity brain wave sensing bluetooth earphone Download PDFInfo
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- CN105049972A CN105049972A CN201510284704.0A CN201510284704A CN105049972A CN 105049972 A CN105049972 A CN 105049972A CN 201510284704 A CN201510284704 A CN 201510284704A CN 105049972 A CN105049972 A CN 105049972A
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Abstract
The invention discloses a near field communication (NFC) based multiband high-sensitivity brain wave sensing bluetooth earphone, which is characterized in that an earphone body comprises brain wave sensors, filtering and amplification units, a multichannel selection switch, an analog-to-digital converter and a brain wave acquisition and processing chip which are sequentially connected, the brain wave sensors comprise a brain wave sensor A distributed at a brain frontal region and a brain wave sensor B distributed at a brain occipital region, and each filtering and amplification unit comprises a first amplifier, a wave trap, a low-pas filter, a high-pass filter and a second amplifier, which are sequentially connected, of high-impedance differential input. The earphone body further comprises an NFC module, wherein the NFC module is connected with a bluetooth module through a bluetooth control circuit which is used for controlling the bluetooth module to realize automatic matching and communication, and the NFC module is further connected with a target terminal through an NFC transmitting and receiving antenna. The NFC based multiband high-sensitivity brain wave sensing bluetooth earphone enables users to carry out a matching operation directly through NFC, the target terminal is controlled to carry out corresponding actions through brain waves, and the manipulation is convenient.
Description
Technical field
The present invention relates to bluetooth earphone field, particularly relate to a kind of multiband high sensitivity brain wave based on NFC induction bluetooth earphone.
Background technology
Along with the development of brain wave detection technique is more and more perfect, brain wave detection technique can be applied in mutual field, computer terminal by we, responds to earphone, be directly transferred on target terminal by the idea of user by brain wave, meter terminal does not does not directly accept, and carries out the operation of user's idea.
At present, bluetooth earphone, when opening and using, needs to carry out Bluetooth pairing setting, and this often needs long period and loaded down with trivial details operating procedure.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of multiband high sensitivity brain wave based on NFC is provided to respond to bluetooth earphone, make user directly can carry out matching operation by NFC, carry out corresponding action by brain wave control objectives terminal, manipulation is convenient.
The object of the invention is to be achieved through the following technical solutions: a kind of induction of the multiband high sensitivity brain wave based on NFC bluetooth earphone, comprise headset body and brain wave sensing unit, brain wave sensing unit comprises the multiple brain wave inductors connected successively, many groups filter and amplification unit, multidiameter option switch, analog to digital converter and acquiring brain waves process chip, filter and amplification unit comprises filter and amplification unit A and filter and amplification unit B, brain wave inductor comprises the brain wave sensor A being distributed in brain frontal region, be distributed in the brain wave sensor B in brain temporo district, be distributed in the brain wave sensor C in brain top district and be distributed in the brain wave sensor D of brain occipital region, brain wave sensor and filter and amplification unit connect one to one, described filter and amplification unit comprises the first amplifier of the high-impedance differential input connected successively, trapper, low pass filter, band pass filter and the second amplifier, described headset body is bluetooth earphone, acquiring brain waves process chip is connected with the control inputs port of target terminal with control output end mouth by bluetooth, headset body is connected with the audio output port of target terminal with audio input port by bluetooth, brain wave sensor A, brain wave sensor B, brain wave sensor C is connected with headset body respectively by four connecting rods with brain wave sensor D.
Headset body also comprises NFC module, and NFC module passes through to realize automatic matching for controlling bluetooth module, the Bluetooth control circuit of communication is connected with bluetooth module, and described NFC module is also connected with target terminal by NFC dual-mode antenna.
Described trapper comprises the Chebyshev's band stop filter suppressing 50Hz power frequency component.
Described acquiring brain waves process chip comprises TMS320VC5402 chip.
Described control output end mouth is also connected with target terminal by a data line with audio input port.
Described headset body is also provided with USB interface, carries out exchanges data and charging by USB interface.
Described headset body is also provided with memory module or memory card slot, for storing brain wave data and other data.
Described headset body is also provided with managing electric quantity unit and battery alert unit.
Described NFC dual-mode antenna comprises magnetic FPC antenna, is convenient to be arranged in headset body.
Described NFC module comprises PN532 chip.
The invention has the beneficial effects as follows:
1) the present invention sets up multiple brain wave inductor, many group filter and amplification unit, multidiameter option switch, analog to digital converter and acquiring brain waves process chip on bluetooth earphone, realize detecting eeg signal by bluetooth earphone, come to carry out mutual interactive communication with target terminal.
2) the present invention is inputted by high-impedance differential the first amplifier, trapper, low pass filter, band pass filter and the second amplifier carry out filter amplifying processing to brain wave, make eeg signal acquisition process more accurate.
3) the present invention is provided with the brain wave sensor A being distributed in brain frontal region and the brain wave sensor B being distributed in brain occipital region, brain wave sensor A is mainly for detection of β ripple, brain wave sensor B, mainly for detection of α ripple, effectively improves the sensitivity of brain wave induction.
4) the present invention adopts NFC target and mode terminal automatically to identify pairing, when after the code data pair verification success that bluetooth earphone is corresponding to target terminal, bluetooth earphone will open Bluetooth function automatically, and also opened in the lump by the Bluetooth function of NFC mode control objectives terminal, then the fast automatic pairing of bluetooth of bluetooth earphone and target terminal is realized, and then realize bluetooth earphone and be connected alternately with the blue-teeth data of target terminal, communicate very easy to use.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of brain wave of the present invention induction bluetooth earphone;
Fig. 2 is the circuit block diagram of filter and amplification unit of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, a kind of induction of the multiband high sensitivity brain wave based on NFC bluetooth earphone, comprise headset body and brain wave sensing unit, brain wave sensing unit comprises the multiple brain wave inductors connected successively, many groups filter and amplification unit, multidiameter option switch, analog to digital converter and acquiring brain waves process chip, filter and amplification unit comprises filter and amplification unit A and filter and amplification unit B, brain wave inductor comprises the brain wave sensor A being distributed in brain frontal region, be distributed in the brain wave sensor B in brain temporo district, be distributed in the brain wave sensor C in brain top district and be distributed in the brain wave sensor D of brain occipital region, brain wave sensor and filter and amplification unit connect one to one, described filter and amplification unit comprises the first amplifier of the high-impedance differential input connected successively, trapper, low pass filter, band pass filter and the second amplifier, described headset body is bluetooth earphone, acquiring brain waves process chip is connected with the control inputs port of target terminal with control output end mouth by bluetooth, headset body is connected with the audio output port of target terminal with audio input port by bluetooth, brain wave sensor A, brain wave sensor B, brain wave sensor C is connected with headset body respectively by four connecting rods with brain wave sensor D.
Headset body also can comprise mobile communication module, is intercomed mutually by mobile communication wireless network and target terminal, and region restriction is less, can carry out remote interaction control whenever and wherever possible.
Acquiring brain waves process chip is connected with the control inputs port of target terminal with control output end mouth by bluetooth, and headset body is connected with the audio output port of target terminal with audio input port by bluetooth.
Headset body also comprises NFC module, and NFC module passes through to realize automatic matching for controlling bluetooth module, the Bluetooth control circuit of communication is connected with bluetooth module, and described NFC module is also connected with target terminal by NFC dual-mode antenna.
On the connecting rod that described NFC dual-mode antenna is arranged on described headset body or on left/right ear-hang.
Headset body is also provided with USB interface, carries out exchanges data and charging by USB interface, headset body is also provided with memory module or memory card slot, for storing brain wave data and other data.
Described headset body also comprises managing electric quantity unit and battery alert unit, managing electric quantity unit is for managing the power supply of headset body and detecting power supply surplus, when power supply surplus is lower than predetermined threshold value, managing electric quantity unit carries out alarm by battery alert unit.
As shown in Figure 2, described filter and amplification unit comprises the first amplifier, trapper, low pass filter, band pass filter and the second amplifier that connect successively.
Described trapper comprises the Chebyshev's band stop filter suppressing 50Hz power frequency component.
Described acquiring brain waves process chip comprises TMS320VC5402 chip.
Described control output end mouth is also connected with target terminal by a data line with audio input port.
Described headset body is also provided with USB interface, carries out exchanges data and charging by USB interface.
Described headset body is also provided with memory module or memory card slot, for storing brain wave data and other data.
Described headset body is also provided with managing electric quantity unit and battery alert unit.
Described NFC dual-mode antenna comprises magnetic FPC antenna, is convenient to be arranged in headset body.
Described NFC module comprises PN532 chip.
In the present invention, brain wave inductor detects induction eeg signal, and send to the first amplifier tentatively to amplify process this eeg signal, again through interference and the noise of 50Hz trapper filtering 50Hz, carry out further filtering finally by low pass filter, band pass filter and the second amplifier and amplify process, the eeg signal exported after optimizing carries out data acquisition to acquiring brain waves process chip.
Multichannel eeg signal is separated into the pulse signal of a road serial through multidiameter option switch, then after analog-to-digital conversion, carries out data acquisition by first processor.
Claims (9)
1. the induction of the multiband high sensitivity brain wave based on a NFC bluetooth earphone, it is characterized in that: comprise headset body and brain wave sensing unit, brain wave sensing unit comprises the multiple brain wave inductors connected successively, many groups filter and amplification unit, multidiameter option switch, analog to digital converter and acquiring brain waves process chip, filter and amplification unit comprises filter and amplification unit A and filter and amplification unit B, brain wave inductor comprises the brain wave sensor A being distributed in brain frontal region, be distributed in the brain wave sensor B in brain temporo district, be distributed in the brain wave sensor C in brain top district and be distributed in the brain wave sensor D of brain occipital region, brain wave sensor and filter and amplification unit connect one to one, described filter and amplification unit comprises the first amplifier of the high-impedance differential input connected successively, trapper, low pass filter, band pass filter and the second amplifier, described headset body is bluetooth earphone, acquiring brain waves process chip is connected with the control inputs port of target terminal with control output end mouth by bluetooth, headset body is connected with the audio output port of target terminal with audio input port by bluetooth, brain wave sensor A, brain wave sensor B, brain wave sensor C is connected with headset body respectively by four connecting rods with brain wave sensor D,
Headset body also comprises NFC module, and NFC module passes through to realize automatic matching for controlling bluetooth module, the Bluetooth control circuit of communication is connected with bluetooth module, and described NFC module is also connected with target terminal by NFC dual-mode antenna.
2. a kind of induction of the multiband high sensitivity brain wave based on NFC bluetooth earphone according to claim 1, is characterized in that: described trapper comprises the Chebyshev's band stop filter suppressing 50Hz power frequency component.
3. a kind of induction of the multiband high sensitivity brain wave based on NFC bluetooth earphone according to claim 1, is characterized in that: described acquiring brain waves process chip comprises TMS320VC5402 chip.
4. a kind of induction of the multiband high sensitivity brain wave based on NFC bluetooth earphone according to claim 1, is characterized in that: described control output end mouth is also connected with target terminal by a data line with audio input port.
5. a kind of induction of the multiband high sensitivity brain wave based on NFC bluetooth earphone according to claim 1, is characterized in that: described headset body is also provided with USB interface, carries out exchanges data and charging by USB interface.
6. a kind of induction of the multiband high sensitivity brain wave based on NFC bluetooth earphone according to claim 1, is characterized in that: described headset body is also provided with memory module or memory card slot, for storing brain wave data and other data.
7. a kind of induction of the multiband high sensitivity brain wave based on NFC bluetooth earphone according to claim 1, is characterized in that: described headset body is also provided with managing electric quantity unit and battery alert unit.
8. a kind of induction of the multiband high sensitivity brain wave based on NFC bluetooth earphone according to claim 1, is characterized in that: described NFC dual-mode antenna comprises magnetic FPC antenna.
9. a kind of induction of the multiband high sensitivity brain wave based on NFC bluetooth earphone according to claim 1, is characterized in that: described NFC module comprises PN532 chip.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016192454A1 (en) * | 2015-05-29 | 2016-12-08 | 成都腾悦科技有限公司 | Nfc-based bluetooth earphone sensing electroencephalographic α wave signal |
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| JPH08196638A (en) * | 1995-01-27 | 1996-08-06 | Mitsubishi Precision Co Ltd | Optimum brain wave stimulator |
| CN2753289Y (en) * | 2004-11-22 | 2006-01-25 | 中国科学院心理研究所 | Electroencephalo signal amplifier |
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