CN102737677A - Electroencephalogram signal-based multi-media feedback control system - Google Patents

Abstract

The invention provides an electroencephalogram signal-based multi-media feedback control system, which comprises a wireless brain-computer interface module and a wireless multi-media play device, wherein the wireless brain-computer interface module comprises a processor, a wireless transmission unit, an electroencephalogram preamplification filtering circuit, a sound driving unit, an audio play unit and a plurality of groups of electrodes, wherein the wireless transmission unit, the electroencephalogram preamplification filtering circuit, the sound driving unit, the audio play unit and a plurality of groups of electrodes are connected to the processor; and the wireless transmission unit is connected to the wireless multi-media play device.

Description

Multimedia feedback control system based on eeg signal

Technical field

The present invention relates to a kind of multimedia feedback control system, relate in particular to a kind of multimedia feedback control system based on eeg signal.

Background technology

Multimedia playing apparatus of the prior art adopts manually control or the shuffle mode used usually.In use, multimedia playing device is stored a plurality of audio or videos and in order or adopt the mode of playing immediately to play in order.But above broadcast mode can't be cut and really meet user's spirit or physiological situation instantly, for example when a people wants to mind at rest, if use shuffle, may be played to the music of the strong type of rhythm, and cause minus effect.Therefore when the user wants to hear the music of particular type, need operate to carry out specific selection, complex operation inconvenience multimedia player.

Summary of the invention

In order to overcome the deficiency of above-mentioned prior art; The present invention provides a kind of multimedia feedback control system based on eeg signal; Comprise the wireless computer interface module; The radio multimedium playing device; Said wireless computer interface module comprises processor; Wireless transmission unit; The preposition amplification filtering circuit of brain electricity; The sound driver unit; Audio playing unit and multi-group electrode; Said wireless transmission unit; The preposition amplification filtering circuit of brain electricity; The sound driver unit; Audio playing unit and multi-group electrode are connected in said processor

Electrode is used to capture eeg signal and exports said eeg signal to said processor;

The preposition amplification filtering circuit of brain electricity is used to receive said eeg signal and said eeg signal is amplified and filtering;

Audio playing unit is used to carry out voice playing;

The sound driver unit is used to drive audio playing unit and carries out voice playing;

Processor, be used to accept the preposition amplification filtering circuit of brain electricity sent through amplification, filtered eeg signal and said eeg signal calculated, and the said audio playing unit audio plays of control sound drive unit drives is play;

Wireless transmission unit is connected in said radio multimedium playing device; The radio multimedium playing device is used for sending data to said wireless transmission unit, and said wireless transmission unit is accepted the data that said radio multimedium playing device is sent under said processor control.

Of the present inventionly further be improved to, said multimedia feedback control system based on eeg signal also is provided with the cloud platform communication server, the wireless connections of said radio multimedium playing device in the said cloud platform communication server to carry out data transmission.

Of the present inventionly further be improved to; Said multimedia feedback control system based on eeg signal also is provided with data input cell and data storage cell; Said data input cell is used for input control signal to processor; Said data storage cell is used to carry out data storing, and said data input cell and data storage cell are connected in said processor.

Of the present inventionly further be improved to, said data input cell also is used for generating according to input control signal parameter is set.

Of the present inventionly further be improved to, said wireless transmission unit also is used for the parameter that is provided with that data input cell generates is uploaded to the radio multimedium playing device and the cloud platform communication server.

Of the present inventionly further be improved to, said data storage cell adopts a kind of in RAM, ROM, USB flash drive, the hard disk.

Of the present inventionly further be improved to, said multimedia feedback control system based on eeg signal also is provided with display unit, and said display unit is used for display menu or shows the eeg signal numerical value that said electrode captures.

Of the present inventionly further be improved to, said wireless transmission unit adopts a kind of data transmission of carrying out in infrared ray, bluetooth, ZigBee, Wi-Fi, the WiMAX mode.

Compared to prior art; Multimedia feedback control system based on eeg signal of the present invention detects user's eeg signal; And judge user's the state of mind according to the eeg signal that detected; And, select suitable audio to play according to user's the state of mind according to user's setting.And can be through cloud platform communication server record user parameter and voice data be set.

Description of drawings

Fig. 1 is that the multimedia feedback control system that the present invention is based on eeg signal is formed synoptic diagram.

Fig. 2 is the structured flowchart of wireless computer interface module that the present invention is based on the multimedia feedback control system of eeg signal.

Embodiment

Below in conjunction with description of drawings and embodiment the present invention is further specified.

See also Fig. 1 and Fig. 2, the invention provides a kind of multimedia feedback control system, comprise wirelesscomputer interface module 10, radiomultimedium playing device 20 and the cloudplatform communication server 30 based on eeg signal.10 wireless connections of wireless computer interface module are in radiomultimedium playing device 20, and 20 wireless connections of radio multimedium playing device are in the cloud platform communication server 30.Wirelesscomputer interface module 10 is used for capturing user's EEG signals, and analyzes alpha ripple and beta wave energy number percent, in order to assessment user spirit or physiological anxiety and relaxed condition.Wirelesscomputer interface module 10 is assigned multimedia steering order to radiomultimedium playing device 20 according to user's mental status.Radiomultimedium playing device 20 is chosen suitable voice data and selected voice data is sent to wirelesscomputer interface module 10 and plays under 10 controls of wireless computer interface module.20 wireless connections of radio multimedium playing device in from the cloudplatform communication server 30 to carry out data transmission, personal settings information, voice data or multi-medium data uploaded or downloaded to said radiomultimedium playing device 20 also can from the cloudplatform communication server 30.

Wirelesscomputer interface module 10 comprises the preposition amplification filtering circuit ofprocessor 101,data input cell 102,data storage cell 103,wireless transmission unit 104,display unit 105,brain electricity 106,sound driver unit 107,audio playing unit 108 and multi-group electrode 109.Wireless transmission unit 104 is connected in radiomultimedium playing device 20.

Processor 101 is used to accept the signal that sends each unit and other unit is controlled.Theprocessor 101 of the multimedia feedback control system based on eeg signal of the present invention can be accepted control signal thatdata input cell 102 imported so that the multimedia feedback control system based on eeg signal of the present invention is carried out parameter setting and control;Processor 101 also can be accepted eeg signal that electrode captures and eeg signal is calculated, and according to the result of calculation to eeg signal other unit is controlled.In the present embodiment, the alpha in 101 pairs of EEG signals of processor involves the number percent that the beta ripple accounts for the gross energy of whole eeg signals and calculates.

Data input cell 102 is used for input control signal.Data input cell 102 of the present invention can adopt the button that is connected inprocessor 101, mechanical keyboard, touch-screen or other to be used for the device of user's input control signal.Saiddata input cell 102 is used for the multimedia feedback control system based on eeg signal of the present invention is carried out like parameter settings such as volume adjusting, playback rates, and starts, fixes tentatively, closes etc. and control.Saiddata input cell 102 is carried out parameter and the back is set is generated parameter is set, and under the control ofprocessor 101, is stored indata storage cell 103.

Data storage cell 103 is used to carry out data storing, and said data can comprise parameter, the eeg signal that is measured, alpha ripple and beta wave energy percentages and data such as voice data or multi-medium data are set.It is understandable that;Data storage cell 103 can adopt RAM (random access memory; Random access memory), ROM (Read-Only Memory, read-only memory), USB flash drive (USB flash disk) or hard disk etc. can be used for the device of data storage.

Wireless transmission unit 104 is used for sending controling instruction to radiomultimedium playing device 20 underprocessor 101 controls, so that radiomultimedium playing device 20 is controlled.Wireless transmission unit 104 also is used to accept the voice data that radiomultimedium playing device 20 sent and underprocessor 101 controls, carries out voice playing through sound driver unit 107.It is understandable that;Wireless transmission unit 104 can adopt infrared ray, bluetooth, ZigBee, 2G, 2.5G, 2.75G, 3G, Wi-Fi (wireless fidelity) or WiMAX Radio Transmission Technologys such as (Worldwide Interoperability for Microwave Access, worldwide interoperability for microwave inserts) to carry out the transmission of steering order and data.Wireless transmission unit 104 also can be uploaded to the radiomultimedium playing device 20 and the cloudplatform communication server 30 with the parameter that is provided with thatdata input cell 102 generates

Display unit 105 is used for display menu or theshow electrode 109 eeg signal numerical value that captures.

The prepositionamplification filtering circuit 106 of brain electricity is used to accept the eeg signal that saidelectrode 109 captured and amplifies and filtering, and the eeg signal after filtering amplified is sent toprocessor 101 and calculates.

Sound driver unit 107 is used to driveaudio playing unit 108 and carries out voice playing.

Audio playing unit 108 is used to carry out voice playing.

Electrode 109 is used for capturing eeg signal, and the eeg signal that is captured is sent to the prepositionamplification filtering circuit 106 of brain electricity amplifies and filtering, is resent to processor 101.Comprise in the EEG signals that alpha involves alpha in beta ripple, 101 pairs of EEG signals of processor and involves the number percent that the beta ripple accounts for the gross energy of whole eeg signals and calculate.When the alpha wave energy is higher than beta ripple number percent, expression user spirit trend relaxed condition; When beta wave energy number percent is higher, expression user spirittrend pressure.Processor 101 is selected pairing music type according to result of calculation again and is controlledsound driver element 107 drivingaudio playing units 108 and carry out voice playing.

It is understandable that, wirelesscomputer interface module 10 can adopt the wireless headset that comprises above each unit, notebook computer.Wirelesscomputer interface module 10 is connected in radiomultimedium playing device 20 through Wireless transmission mode and carries out the transmission of audio frequency, video or multi-medium data.Radiomultimedium playing device 20 is used for multimedia is play.In the present embodiment, radiomultimedium playing device 20 can adopt mobile phone, notebook computer, panel computer, wireless walkman etc. can carry out the multimedia playing apparatus of multimedia.Radiomultimedium playing device 20 can be used to store data such as personal settings information, multimedia and audio frequency; And can under 10 controls of wireless computer interface module, the stored parameter that is provided be uploaded to the cloudplatform communication server 30, and under 10 controls of wireless computer interface module, download voice data as required by the cloudplatform communication server 30.

What the cloudplatform communication server 30 was used to store the user is provided with multi-medium datas such as information data and audio frequency, video, and according to the request of radiomultimedium playing device 20 data is sent to radio multimedium playing device 20.20 wireless connections of radio multimedium playing device are in the cloudplatform communication server 30.

When using the multimedia feedback control system based on eeg signal of the present invention; Theelectrode 109 acquisition eeg signals of wirelesscomputer interface module 10 reach the prepositionamplification filtering circuit 106 of brain electricity with the eeg signal that is captured and amplify and filtering, are resent to processor 101.Alpha involves the number percent that the beta ripple accounts for whole eeg signals in the eeg signal thatprocessor 101 calculatingelectrodes 109 are captured.When the alpha wave energy is higher than beta ripple number percent, expression user spirit trend relaxed condition; When beta wave energy number percent is higher, expression user spirittrend pressure.Processor 101 drivesaudio playing unit 108 according to corresponding result of calculation controlsound driver element 107 and selects suitable music type to play.Like alpha wave energy in the eeg signal that is captured whenelectrode 109 when higher than beta ripple number percent, expression user spirit trend relaxed condition,processor 101 controlsound driver elements 107 driveaudio playing units 108 and play the music of comparatively releiving.When beta wave energy number percent is higher, nervous, the excited situation of expression user spirit trend,processor 101 controlsound driver elements 107 driveaudio playing unit 108 and play comparatively excited music.It is understandable that; The user can set the music type of required broadcast as required; Also can be set at whenelectrode 109 detects user's mood and play the music of comparatively releiving when comparatively excited and come user's mood is stablized, the mood that detects the user whenelectrode 109 comparatively calmness is to play comparatively excited music to come user's mood is stimulated.

Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.

Claims (8)

1. multimedia feedback control system based on eeg signal; It is characterized in that: comprise wireless computer interface module, radio multimedium playing device; Said wireless computer interface module comprises processor, wireless transmission unit, the preposition amplification filtering circuit of brain electricity, sound driver unit, audio playing unit and multi-group electrode; Said wireless transmission unit, the preposition amplification filtering circuit of brain electricity, sound driver unit, audio playing unit and multi-group electrode are connected in said processor

Electrode is used to capture eeg signal and exports said eeg signal to said processor;

The preposition amplification filtering circuit of brain electricity is used to receive said eeg signal and said eeg signal is amplified and filtering;

Audio playing unit is used to carry out voice playing;

The sound driver unit is used to drive audio playing unit and carries out voice playing;

Processor, be used to accept the preposition amplification filtering circuit of brain electricity sent through amplification, filtered eeg signal and said eeg signal calculated, and the said audio playing unit audio plays of control sound drive unit drives is play;

Wireless transmission unit is connected in said radio multimedium playing device; The radio multimedium playing device is used for sending data to said wireless transmission unit, and said wireless transmission unit is accepted the data that said radio multimedium playing device is sent under said processor control.

2. according to the said multimedia feedback control system of claim 1 based on eeg signal; It is characterized in that: said multimedia feedback control system based on eeg signal also is provided with the cloud platform communication server, the wireless connections of said radio multimedium playing device in the said cloud platform communication server to carry out data transmission.

3. according to the said multimedia feedback control system of claim 2 based on eeg signal; It is characterized in that: said multimedia feedback control system based on eeg signal also is provided with data input cell and data storage cell; Said data input cell is used for input control signal to processor; Said data storage cell is used to carry out data storing, and said data input cell and data storage cell are connected in said processor.

4. according to the said multimedia feedback control system based on eeg signal of claim 3, it is characterized in that: said data input cell also is used for generating according to input control signal parameter is set.

5. according to the said multimedia feedback control system based on eeg signal of claim 4, it is characterized in that: said wireless transmission unit also is used for the parameter that is provided with that data input cell generates is uploaded to the radio multimedium playing device and the cloud platform communication server.

6. according to the said multimedia feedback control system based on eeg signal of claim 3, it is characterized in that: said data storage cell adopts a kind of in RAM, ROM, USB flash drive, the hard disk.

7. according to the said multimedia feedback control system of claim 1 based on eeg signal; It is characterized in that: said multimedia feedback control system based on eeg signal also is provided with display unit, and said display unit is used for display menu or shows the eeg signal numerical value that said electrode captures.

8. according to the said multimedia feedback control system based on eeg signal of claim 1, it is characterized in that: said wireless transmission unit adopts a kind of data transmission of carrying out in infrared ray, bluetooth, ZigBee, Wi-Fi, the WiMAX mode.

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