CN109062406B

CN109062406B - Brain-computer interface equipment

Info

Publication number: CN109062406B
Application number: CN201810834729.7A
Authority: CN
Inventors: 王辉; 张磊
Original assignee: Shandong University
Current assignee: Shandong University
Priority date: 2018-07-26
Filing date: 2018-07-26
Publication date: 2020-05-08
Anticipated expiration: 2038-07-26
Also published as: CN109062406A

Abstract

The invention discloses a brain-computer interface device, which comprises a signal processing unit and a signal acquisition unit; the signal processing unit sets up in the signal acquisition unit outside, and soft area is connected respectively at both ends, and one of them soft area is gone up and is connected the buckle, and another soft area upper edge is the cockscomb structure, passes through the through-hole and the top edge and the gear engagement that are provided with the gear in the middle of the buckle, the gear passes through slewing mechanism and connects the card wheel, set up the torsional spring between card wheel and the slewing mechanism, the card wheel outside sets up the ring that is fixed in a plurality of recesses of inner surface area on the slewing mechanism, arbitrary the recess can with set up in the card wheel can the ejecting pole card with. The invention simultaneously avoids the problems of excessive pressure on the head in the wearing process and easy gliding due to the self weight of the equipment, and effectively improves the comfort level of people wearing the equipment for a long time.

Description

Brain-computer interface equipment

Technical Field

The disclosure belongs to the technical field of brain-computer interfaces, and relates to brain-computer interface equipment.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The brain-computer interface is a direct connection channel established between the human or animal brain and external equipment, and the brain-computer interface equipment acquires electroencephalogram signals through the signal acquisition unit. When the brain-computer interface equipment is used, the signal acquisition unit is required to be tightly attached to the forehead to ensure the quality of signal acquisition. However, existing devices often result in greater head pressure on the brain-computer interface device for this purpose, and low comfort for wearing for extended periods of time.

Disclosure of Invention

To the not enough that exists among the prior art, one or more embodiments of this disclosure provide a brain machine interface device, avoided wearing the in-process simultaneously to the too big pressure of head and because the problem that the equipment dead weight easily glides, effectively improve the comfort level that personnel wore for a long time.

According to an aspect of one or more embodiments of the present disclosure, there is provided a brain-computer interface device.

A brain-computer interface device comprising: the device comprises a signal processing unit and a signal acquisition unit;

the signal processing unit sets up in the signal acquisition unit outside, and soft area is connected respectively at both ends, and one of them soft area is gone up and is connected the buckle, and another soft area upper edge is the cockscomb structure, passes through the through-hole and the top edge and the gear engagement that are provided with the gear in the middle of the buckle, the gear passes through slewing mechanism and connects the card wheel, set up the torsional spring between card wheel and the slewing mechanism, the card wheel outside sets up the ring that is fixed in a plurality of recesses of inner surface area on the slewing mechanism, arbitrary the recess can with set up the pole block that can pop out in the card wheel.

Furthermore, a plurality of elastic elements are uniformly arranged between the signal acquisition unit and the signal processing unit.

Furthermore, a plurality of radial blind holes are formed in the clamping wheel, and the rod can slide relatively along the blind holes.

Furthermore, the rod is connected with the bottom of the blind hole through a tension spring.

Further, the diameter of the rod is smaller than the width of the groove.

Further, the soft belt is connected with a sizing tube, and the tail end of the sizing tube is connected with an ear clip.

Further, the ear clip is the U type, including first clamping piece and second clamping piece, first clamping piece cross section is the L type, the second clamping piece is rectangular shape, it has the through-hole that is used for passing first clamping piece to open on the second clamping piece, be provided with the electrode on the ear clip, the electrode links to each other with signal processing unit.

Furthermore, the signal processing unit is connected with the signal acquisition unit through a lead, and the signal acquisition unit comprises a plurality of electrodes.

Furthermore, a power supply and Bluetooth are arranged on the signal processing unit.

Furthermore, the soft belts are made of flexible materials, and a plurality of protrusions are arranged on the inner sides of the soft belts.

The beneficial effect of this disclosure:

the brain-computer interface equipment is engaged by a soft belt with a saw-toothed upper edge and a buckle with a gear arranged in the middle, the gear is connected with a clamping wheel through a rotating mechanism, a torsion spring is arranged between the clamping wheel and the rotating mechanism, a circular ring with a plurality of grooves on the inner surface is arranged on the outer side of the clamping wheel and fixed on the rotating mechanism, any groove can be clamped with a rod which can be ejected and arranged in the clamping wheel, and a plurality of elastic elements are uniformly arranged between a signal acquisition unit and a signal processing unit; meanwhile, the problems of overlarge pressure on the head in the wearing process and easy gliding due to the self weight of the equipment are avoided, and the comfort degree of the personnel wearing the equipment for a long time is effectively improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a perspective view of a brain-computer interface in accordance with one or more embodiments;

FIG. 2 is a top view of a brain-computer interface in accordance with one or more embodiments;

FIG. 3 is a perspective view of a clasp in accordance with one or more embodiments;

FIG. 4 is a top view of a clasp in accordance with one or more embodiments;

FIG. 5 is a schematic view of the interior of a clasp in accordance with one or more embodiments;

FIG. 6 is a schematic view of a ring and a click wheel in accordance with one or more embodiments;

FIG. 7 is a schematic view of an ear clip according to one or more embodiments;

wherein, 1-a signal processing unit; 2-a signal acquisition unit; 3-a second soft belt; 4-shaping pipe; 5-ear clip; 6-buckling; 7-a first soft belt; 8-a spring; 9-a power supply; 10-Bluetooth; 11-a circular ring; 12-a card wheel; 13-a gear; 14-a gearbox; 15-a rod; 16-a tension spring; 17-torsion spring; 18-a groove; 19-a first jaw; 20-an electrode; 21-second clip.

The specific implementation mode is as follows:

technical solutions in one or more embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in one or more embodiments of the present disclosure, and it is apparent that the described embodiments are only a part of the embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art based on one or more embodiments of the disclosure without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Without conflict, the embodiments and features of the embodiments in the present disclosure may be combined with each other, and the present disclosure will be further described with reference to the drawings and the embodiments.

As shown in fig. 1-6, according to an aspect of one or more embodiments of the present disclosure, there is provided a brain-computer interface device comprising:

a signal processing unit 1, a flexible signal acquisition unit 2 is arranged on one side of the signal processing unit 1, a plurality of springs 8 are uniformly distributed between the signal acquisition unit 2 and the signal processing unit 1, two ends of the signal processing unit 1 are respectively connected with a first soft belt 7 and a second soft belt 3, the second soft belt 3 is connected with a buckle 6, the first soft belt 7 passes through a through hole in the middle of the buckle 6, the upper edge of the first soft belt 7 is in a sawtooth shape, a gear 13 is arranged in a through hole in the middle of the buckle 6, the gear 13 and the upper edge of the first soft belt 7 form a gear 13 pair, the gear 13 is connected with the clamping wheel 12 through a gear box 14 (a rotating mechanism), a torsion spring 17 is arranged between the clamping wheel 12 and the gear box 14, a circular ring 11 is wound on the outer side of the clamping wheel 12, a plurality of grooves 18 are uniformly distributed on the inner surface of the circular ring 11, and the circular ring 11 is fixed on the gearbox 14. The clamping wheel 12 is provided with a plurality of radial blind holes, rods 15 are arranged in the blind holes in a sliding mode, tension springs 16 are connected between the rods 15 and the bottoms of the blind holes, and the diameters of the rods 15 are smaller than the width of the grooves 18.

As shown in fig. 1 and 7, a sizing tube 4 is connected to the second soft belt 3, and an ear clip 5 is connected to the end of the sizing tube 4. Ear clip 5 is the U type, including first clamping piece 19 and

second clamping piece

21, 19 cross sections of first clamping piece are the L type, second clamping piece 21 is rectangular shape, it has the through-hole that is used for passing first clamping piece 19 to open on the second clamping piece 21, be provided with electrode 20 on the ear clip 5, electrode 20 links to each other with signal processing unit 1.

A lead is connected between the signal processing unit 1 and the signal acquisition unit 2, and the signal acquisition unit 2 comprises a plurality of electrodes 20.

The signal processing unit 1 is provided with a power supply 9 and a Bluetooth 10.

The first soft belt 7 and the second soft belt 3 are made of flexible materials, and a plurality of anti-skidding bulges are uniformly distributed on the inner sides of the first soft belt and the second soft belt.

In one or more embodiments of the present disclosure, when the brain-computer interface device is worn, the soft band is slowly extended to be fitted on the head, and the signal processing unit 1 is located at the forehead position, at this time, since the first soft band 7 is slowly moved, the speed of the catch wheel 12 is slow, and the rod 15 is not thrown away.

The clamp wheel 12 is connected with a torsion spring 17, so that the two soft belts keep certain acting force and are sleeved on the head, and the pressure on the head is not too large, and the head cannot slide down from the head due to self weight.

When the wearer moves, because the quality of signal processing unit 1 is great relatively, can produce the motion of leaving the head surface, first soft area 7 drives card wheel 12 and rotates this moment, pole 15 in the card wheel 12 is thrown away because of the effect of centrifugal force, block in the recess 18 on ring 11, make card wheel 12 stall, the displacement of signal processing unit 1 has been restricted, make signal processing unit 1 can only take place very little displacement, simultaneously because be connected with compressed spring 8 between signal acquisition unit 2 and the signal processing unit 1, when signal processing unit 1 takes place the displacement of keeping away from the head, spring 8 extends, the displacement of signal processing unit 1 has been compensated, make signal acquisition unit 2 hug closely the head all the time, the quality of signal acquisition has been guaranteed. When the signal processing unit 1 does not move outwards any more, the tension spring 16 is connected behind the rod 15, the rod 15 can retract into the blind hole under the action of the tension spring 16, and at the moment, the clamping wheel 12 slowly rotates in the opposite direction under the action of the torsion spring 17, so that the signal processing unit 1 returns to the initial position.

Two clamping pieces of ear clip 5 can relative movement, and adopt interference fit, and the resistance that makes the relative motion of two clamping pieces is great, and ear clip 5 presss from both sides the back to the ear, presses two clamping pieces, makes two clamping pieces just to carry the ear, and the position of ear clip 5 is injectd by sizing tube 4, so ear clip 5 can press from both sides on the ear and can not drop with very little effort, when having avoided wearing for a long time, ear clip 5 causes the uncomfortable sense of ear to the pressure of ear is too big.

The electroencephalogram signals are collected by the signal collecting unit 2 and then sent to the signal processing unit 1, the collected electroencephalogram signals are processed in real time, and the processed electroencephalogram signals are sent to a computer through the Bluetooth 10. The signal processing unit 1 and the signal acquisition unit 2 both adopt the prior art.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A brain-computer interface device comprising: the device comprises a signal processing unit and a signal acquisition unit; it is characterized in that the preparation method is characterized in that,

2. The brain-computer interface device of claim 1, wherein a plurality of elastic elements are uniformly disposed between said signal acquisition unit and said signal processing unit.

3. The brain-computer interface device of claim 1, wherein said click wheel has a plurality of radial blind holes along which said rod slides relative to said click wheel.

4. The brain-computer interface device of claim 3, wherein said rod is connected to the bottom of said blind hole by a tension spring.

5. The brain-computer interface device of claim 1, wherein said rod has a diameter less than a width of said recess.

6. The brain-computer interface device of claim 1, wherein said flexible band is connected to a sizing tube, said sizing tube terminating in an ear clip.

7. The brain-computer interface device according to claim 6, wherein the ear clip is U-shaped and comprises a first clip piece and a second clip piece, the cross section of the first clip piece is L-shaped, the second clip piece is strip-shaped, the second clip piece is provided with a through hole for passing through the first clip piece, the ear clip is provided with an electrode, and the electrode is connected with the signal processing unit.

8. The brain-computer interface device of claim 1, wherein said signal processing unit is connected to said signal acquisition unit via a lead, said signal acquisition unit comprising a plurality of electrodes.

9. The brain-computer interface device of claim 1, wherein said signal processing unit is provided with a power source and bluetooth.

10. The brain-computer interface device of claim 1, wherein said flexible straps are made of flexible material and have protrusions on the inside.