KR20190080572A - Structure for increasing contact area of system for smart electromyography sensor and motion, and controlling method thereof - Google Patents

Abstract

The present invention provides a contact area increasing structure of a smart electromyography sensor, wherein the smart electromyography sensor includes: a sensing unit sensing an electromyogram for the contact area of a user and transmitting an electromyogram signal corresponding to a sensing result to a receiving device; and a battery supplying power to the sensing unit. According to the present invention, the contact area increasing structure of a smart electromyography sensor comprises: an attachment patch having a coupling unit on the center of one surface to be intermittently coupled to a pair of electrode parts, and having an adhesive surface formed on the entire other surface of the attachment patch to be attached to the contact area of the user; a contact unit having an upper surface which is to be in contact with the contact area of the user and has a tilted shape, and a lower surface which has a horizontal shape; and an elastic unit fastened and fixated to a fixation pin of the contact unit to have an outer diameter getting smaller gradually as going downwards. The present invention can be applied to users having various physical body characteristics and also can easily acquire biometric signals from a portion of a physical body to be measured by applying the electromyography sensor to the portion of the physical body of the user without other special coupling units.

Description

TECHNICAL FIELD [0001] The present invention relates to a smart electromyogram sensor and a smart electromyogram sensor,

The present invention relates to a contact surface enhancement structure for a smart electromyogram sensor, and more particularly, to a smart electromyogram sensor for sensing an electromyogram of a contact surface in a case and transmitting an electromyogram signal corresponding to the sensed result to a receiving device, The present invention relates to a structure for increasing a contact area of a smart electromyogram sensor, which includes a battery and is provided with an electrode section which is connected to the sensing section and which is exposed on one side of the case so as to detect an EMG and to be in contact with a contact surface, will be.

The EMG sensor is a sensor that senses a change in current caused by the movement of muscles. Recently, a variety of researches have been conducted utilizing an EMG sensor.

Regarding this, Patent No. 1563530 relates to a system for detecting electromyogram and motion and a control method thereof, which can confirm fatigue of a muscle, compare the correlation between a joint angle of a normal person and a patient's group and muscle strength, Is attached to the joints of the whole body of the body to provide a system for detecting EMG and motion that enables analysis of various complex motions. In addition, the patent application No. 1009222 relates to a wireless electromyography measuring system, which includes a wireless transmission module in the electromyogram detection module and a wireless reception module in the electromyogram terminal. Here, since the EMG sensing module can wirelessly transmit the EMG signal to the EMG terminal, the cable damage due to frequent use can be prevented and the inconvenience of the subject can be minimized.

In the case of the prior art, only a specific application of the electromyography sensor is suggested, but a method of easily applying an electromyography sensor to users having various body characteristics is not suggested.

Further, there is a problem in that it is difficult to recognize the correct operation because the error due to the posture, movement and fatigue of the wearer, which may occur in practically applying the electromyogram sensor, is not reflected.

1. Korean Registered Patent No. 1563530 (entitled SYSTEM AND METHOD FOR DETECTING EMG AND EMG OPERATION) 2. Korean Patent No. 1009222 (entitled: Wireless EMG Measurement System) 3. Korean Patent No. 1501661 (entitled: Wearable Electromyography Sensor System)

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a contact structure which is provided between both electrode parts on one surface of a case corresponding to a user's body contact surface, And it is an object of the present invention to provide a contact surface enhancement structure of a smart electromyogram sensor which can easily apply an electromyogram sensor to a body part of a user without any fastening means.

Another object of the present invention is to provide a structure for increasing the contact area of the smart electromyogram sensor by accurately and accurately recognizing motions and attitudes while reducing the errors caused by fatigue while enabling accurate and accurate operation recognition.

According to an aspect of the present invention, there is provided an electronic device including a pair of electrode portions spaced apart from a surface of a case corresponding to a contact surface of a user, And a battery for supplying power to the sensing unit, the smart electromyogram sensor comprising: a sensing unit for sensing an electromyogram of the smart electromyogram corresponding to a sensed result;

And an attaching patch for forming an adhesive surface to be adhered to the contact surface of the user on the entirety of the other surface while having an engaging portion formed at the center of one surface for interlocking with the pair of electrode portions,

Wherein the housing is formed on one surface of the case so as to be disposed between the electrode portions provided on one surface of the case,

A support piece accommodated in the receiving groove and formed with a connecting hole passing through one end surface corresponding to the hinge groove and coupled to the hinge shaft and protruding perpendicularly to the other end surface, and a " A plurality of fixing pins spaced apart from each other are formed in a circumferential direction, an upper surface of the upper surface to be in contact with the contact surface of the user is inclined, and a lower surface of the contact portion has a horizontal shape, The contact area enhancement structure of the smart electromyographic sensor including the elastic portion which is reduced in size.

On the other hand, the contact portion is partitioned into a plurality of equally spaced blocks, and one surface of one side block of the block adjacent to the other surface of the other side block, A guide groove is formed on the inner side of the guide groove and is slid inward from a position spaced apart from the guide groove by a predetermined length, The insertion guide portions protruding from the positions of the guide grooves to the slide grooves are formed on the other surface in correspondence with the shapes of the guide grooves,

A fixing pin is formed on the bottom surface of each of the divided blocks, and an elastic portion coupled to the fixing pin is provided, or if a block connected to the hinge axis of the divided blocks is a starting block, a fixing pin is formed on the bottom surface of the last block, A contact surface enhancement structure of the smart electromyogram sensor is provided.

As described above, the contact surface enhancement structure of the smart electromyogram sensor according to an embodiment of the present invention is provided between the two side electrode parts on one side of the case corresponding to the user's body contact surface, It is possible to apply the present invention to a user who has various body characteristics of the user because it has a close contact structure so as to correspond to the shape of the contact surface and also can easily apply the electromyogram sensor to the body part of the user without any fastening means, There is an effect that the signal can be acquired easily.

According to another aspect of the present invention, there is provided a contact surface enhancement structure for a smart electromyogram sensor, comprising: a reference electrode connected to a sensing unit by a contact unit; The motion can be predicted before the motion is performed or the motion can be recognized after the motion is performed. Therefore, it is possible to assist various commands or operations intended by the user from the predicted or recognized motion, In addition, it is possible to correct an error value that may be caused by a user's fatigue, that is, a physical activity or an operation, thereby providing a more reliable and accurate electromyogram detector.

1 is a block diagram illustrating a smart electromyogram sensor system according to an embodiment of the present invention;
2 is a perspective view of an electromyogram sensor in a contact surface enhancement structure of a smart electromyographic sensor according to an embodiment of the present invention.
FIG. 3 is a structural view illustrating a contact portion of the electromyogram sensor according to an embodiment of the present invention in a contact surface enhancement structure of a smart electromyogram sensor. FIG.
4 is a view showing an elastic substructure (a) and a coupling structure (b) provided on the back surface of the contact portion of the electromyogram sensor in the contact surface increasing structure of the smart electromyogram sensor according to the embodiment of the present invention.
5 is an attachment patch structure attached to an electrode portion of an electromyogram sensor in a contact surface enhancement structure of a smart electromyogram sensor according to an embodiment of the present invention.
6 is a view illustrating a structure of a contact portion divided into a plurality of blocks in a contact surface increasing structure of a smart electromyogram sensor according to an embodiment of the present invention.
FIG. 7 is a view illustrating a structure of a plurality of blocks divided in a contact surface increasing structure of a smart electromyogram sensor according to an embodiment of the present invention; FIG.
8 is a front perspective view (a), a rear perspective view (b), and a bottom view (c) of a block in a contact surface increasing structure of a smart electromyographic sensor according to an embodiment of the present invention.

In order to achieve the above-mentioned object, the following embodiments will be described in detail with reference to the drawings.

As shown in FIGS. 1 to 4, an embodiment of the present invention includes a pair of electrode units 130 spaced apart from one surface of a surface of a case 100 corresponding to a contact surface of a user, A sensing unit 110 connected to the electrode unit 130 for sensing an electromyogram of a user's muscle change biomedical signal and transmitting an electromyogram signal corresponding to the sensed result to an external receiving unit 200, The smart electromyogram sensor 10 includes a battery 120 that supplies power to the electrode unit 110. The electrode unit 130 has a coupling part 301 at the center of one surface thereof to be intermittently engaged with the pair of electrode parts 130, A patch 300 for forming an adhesive surface 302 attached to a contact surface of a user is provided and is formed on one surface of the case 100 so as to be disposed between the electrode units 130 provided on one surface of the case 100 Each of the hinge grooves 10 And a connecting hole 141 is formed in the receiving groove 101 and penetrates through both ends of the hinge groove 102. The hinge shaft 103 is connected to the receiving hole 101, And a locking pin 142-2 is formed at the end of the supporting piece 142-1 so as to be vertically protruded from the other end of the fixing pin 142. [ A plurality of spaced-apart contact portions 140 are formed in a circumferential direction so that an upper surface to be in contact with the contact surface of the user is inclined and a lower surface is fixed to the fixing pin 142 of the contact portion 140, And a resilient part (150) whose outer diameter is gradually reduced toward the downward direction.

1 to 3, the sensing unit 110 located inside the case 100 generates an electromyogram signal of a user's contact surface through a pair of electrode units 130 formed on one surface of the case 100 can do. The electrode unit 130 includes a surface electrode that senses the current of the skin through a skin contact surface and an insertion electrode that inserts a line or a needle. The present invention will be described using a surface electrode, and an electrode unit 130 composed of bipolar electrodes. 5, the electrode unit 130 exposed to one surface of the case 100 while being connected to the sensing unit 110 is coupled to the coupling unit 301 of the attachment patch 300, which will be described later, If the coupling part 301 of the attachment patch 300 is a male coupling part, the electrode part 130 is formed as an arm coupling part and is detachably attached thereto.

As shown in FIG. 1, the sensing unit 110 includes an electromyogram sensor 111 having an electrode unit 130 for receiving an EMG signal, and a controller 110 for sensing the operation of the user, A controller 112 for sensing or predicting a change in operation information including at least one of a magnitude and an energy distribution of a living body and a communication unit 113 for transmitting a living body signal of the controller 112 to an external receiving unit 200, And a battery 120 for supplying power to the sensing unit 110.

The receiving unit 200 outputs sensed data corresponding to the received electromyogram signal and operation signal, generates evaluation data associated with a user's muscle change based on the sensed data, and outputs the generated evaluation data And the evaluation data and the basic generation data display the evaluation data through the display.

The attachment patch 300 to be fitted to the electrode unit 130 is used to attach and detach the electrode unit 130 and the attachment patch 300 by forming a coupling unit 301 at the center of one surface, And an adhesive surface 302 having a conductive material so as to be contacted to the contact surface of the user on the entire upper surface.

3 and 4, the contact unit 140 has an integral structure that is coupled with the elastic unit 150. The contact unit 140 includes an electrode unit (not shown) formed on both sides of the case 100, The housing 100 is formed at the center of one side of the case 100 so as to receive the contact portion 140. The housing 100 has a receiving groove 101 formed at one side thereof with a hinge groove 102, (101).

The upper surface of the contact portion 140 exposed to the upper surface of the case 100 is inclined at a predetermined slope while the lower surface of the contact portion 140 is formed in a horizontal plane.

A connecting hole 141 is formed to penetrate both ends of one end of the receiving groove 101 corresponding to the hinge groove 102 so that the hinge groove 102 and the connecting hole 141 are connected to each other by a hinge shaft 103 So as to have a pivoting structure.

A support piece 142-1 vertically protruding from the other end surface of the contact portion 140 and an engagement member 142-2 formed inside the end portion of the support piece 142-1 A plurality of spaced apart fixing pins 142 are formed in the circumferential direction.

The elastic part 150 is formed in a spring shape having an elastic force so that the upper end is fixedly coupled to the engaging piece 142-2 formed on the fixing pin 142 of the contact part 140, A spring-shaped coil spring is provided.

The patch 300 is attached to the electrode 130 of the electromyogram sensor 10 and attached to the contact surface of the user. At this time, the inclined surface of the contact portion 140 is in contact with the user's face, When the skin of the user is curved or protruded, the inclined surface of the contact portion 140 closely contacts with the contact surface, and at this time, the contact portion 140 is resiliently deformed in a direction corresponding to the relaxation and expansion of the muscles, So that the adhesion is increased.

Further, the above-described contact portion 140 has an integral structure so as to perform only a partial operation of the contact portion 140 against this muscle force change so as to have elasticity while closely adhering the position of the changed direction to the relaxation or expansion of the muscle It has the following structure.

6 to 8, the contact portion 140 is divided into a plurality of blocks 140-1, 142-1, 140-2, 140-3, ..., 140- And one adjacent block 140-2 and the other block 140-3 of the blocks 140-1, 142-1, 140-2, 140-3, ..., 140- One side of the one side block 140-2 and the one side of the other side block 140-3 which are in contact with the other side of the other side block 140-3 are incised inward from the position spaced apart from the upper side by a predetermined length, The other side of the other side block 140-3 which is in contact with one side of the one side block 140-2 formed with the guide groove 144 and the other side of the one side block 140-3, The guide groove 144 has a shape corresponding to the shape of the guide groove 144 from a position spaced apart from the upper end of the guide groove 144 by a predetermined length, Submitted insertion guide portion 143 is formed,

The fixing pins 142 are formed on the lower surfaces of the divided blocks 140-1, 140-2, 140-3, ... 140-n, A plurality of blocks 140-1 to 140-n connected to the hinge shaft 103 among the divided blocks 140-1, 142-1, 140-2, 140-3, ..., 140- 4 is a start block, the elastic pin 150 is fixed to the fixing pin 142 while the fixing pin 142 is formed on the bottom surface of the last block 140-1. Lt; / RTI >

The contact unit 140 includes a plurality of blocks 140-1, 142-1, 140-2, 140-3, ..., 140-n that are divided into equally spaced blocks. 140-1, 140-2, 140-3, ..., 140-n while being mutually coupled.

A guide groove 144 is formed at one side of the block 140-2 in the contact portion 140 so as to be horizontally extended to the inside both sides of the block 140 while being incised inward from a position spaced from the upper end by a predetermined length to the lower end, A protruding tab 143-1 protruding in a vertical length direction from a position spaced apart from the upper end by a predetermined length and an intermittent tab 143-2 horizontally protruding in the longitudinal direction of both ends of the protruding tab 143-1, The insertion guide portion 143 having a shape corresponding to the inner shape of the guide groove 144 is formed.

The insertion guide portions 143 of the blocks 140-3 adjacent to the guide grooves 144 of the block 140-2 are slidably engaged with the blocks 140-1 and 142-2 -1, 140-2, 140-3, ..., 140-n are combined to constitute an integral contact portion 140. [

The guide grooves 144 and the insertion guide portions 143 are not formed up to the upper end of one surface of the blocks 140-1, 142-1, 140-2, 140-3, ..., 140- In order to prevent the blocks 140-1, 142-1, 140-2, 140-3, ..., 140-n from being separated while the upper surface of the contact portion 140 maintains the inclined surface during the restoration .

The material of the elastic part 150 may be a conductive material so that the sensing part 110 is connected to the lower end of the elastic part 150 bonded to the contact part 140 so that the contact part 140 functions as a reference electrode. A conductive plate (not shown) is formed on the inner side of the receiving groove 101 to be in contact with the lower end of the elastic part 150. The conductive plate (not shown) is connected to the sensing part 110, Includes an impedance detector (not shown) for detecting an impedance signal.

The impedance refers to the bioimpedance. For example, assuming that a human body is a conductor, current is introduced by using two electrodes, and another electrode is used inside the current input electrode, Means a method of measuring the electrical impedance inside the human body by measuring the voltage drop.

That is, if the electrode unit 130 is a current electrode, the contact unit 140 performs a voltage sensing electrode to measure a voltage to detect an impedance signal.

Accordingly, when the muscle is contracted or relaxed, the impedance changes due to the change of the cross-sectional area of the muscle and the cross-sectional area of the biotissue. The impedance signal can be normalized based on the impedance reference value measured at predetermined time intervals. More specifically, According to the present invention, the personal data about the individual can be obtained by measuring the individual in advance in the general living environment at a predetermined time interval, and the reference value for the individual can be obtained based on the individual data. For example, the smart electromyogram sensor of the present invention can be used to estimate an arm motion and obtain a reference value for an arm motion. At this time, the impedance value measured in the relaxed state (no motion, R) of the arm motion can be a reference value, and the reference value is obtained as described above. Thereafter, the impedance data measured according to the operation is compared with the reference value for the individual To normalize the impedance. In this method, the average data for an individual can be used as a criterion for accurately determining body motion for an individual.

A pressure sensor (not shown) may be provided between the inner surface of the receiving groove 101 to be in contact with the lower end of the elastic part 150 so as to determine an initial start reference value for the signal of the EMG signal or the impedance signal, (Not shown) collects sensed data that is a reference value of the signal.

The foregoing description is merely illustrative of the technical idea of the present embodiment, and various modifications and changes may be made to those skilled in the art without departing from the essential characteristics of the embodiments. Therefore, the present embodiments are to be construed as illustrative rather than restrictive, and the scope of the technical idea of the present embodiment is not limited by these embodiments. The scope of protection of the present embodiment should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

EMG detector 10 case 100 detection part 110
Electromyogram sensor 111 control unit 112 communication unit 113
Battery 120 electrode portion 130 contact portion 140
Fixing pin 142 Guide groove 143 Insertion guide part 144
Elastic part 150 patch 200 with receiver 200

Claims (3)

A pair of electrode parts spaced apart from one surface of a case surface corresponding to a contact surface of the user, and a pair of electrode parts provided inside the case and connected to the electrode part to detect electromyograms of the user's muscle changes, 1. A smart electromyogram sensor comprising a sensing unit for transmitting an electromyogram signal to an external receiving unit and a battery for supplying power to the sensing unit,
And an attaching patch for forming an adhesive surface to be adhered to the contact surface of the user on the entirety of the other surface while having an engaging portion formed at the center of one surface for interlocking with the pair of electrode portions,
Wherein the housing is formed on one surface of the case so as to be disposed between the electrode portions provided on one surface of the case,
A support piece accommodated in the receiving groove and formed with a connecting hole passing through one end surface corresponding to the hinge groove and coupled to the hinge shaft and protruding perpendicularly to the other end surface, and a " A plurality of fixing pins spaced apart from each other are formed in a circumferential direction, an upper surface of the upper surface to be in contact with the contact surface of the user is inclined, and a lower surface of the contact portion has a horizontal shape, Wherein the contact portion of the smart electromyogram sensor has an elastic portion. [2] The apparatus of claim 1, wherein the contact portion is partitioned into a plurality of equally spaced blocks, and one side block and one side of a block adjacent to each other, A guide groove is formed on one side of the guide groove and is horizontally extended to both inner side portions incised inwardly from a position spaced apart from the upper end by a predetermined length, And an insertion guide protruding from the other side of the one side block so as to be slidably engaged with the guide groove with a shape corresponding to the shape of the guide groove from a position spaced apart from the upper end by a predetermined length to a lower end,
A fixing pin is formed on the bottom surface of each of the divided blocks, and an elastic portion coupled to the fixing pin is provided, or if a block connected to the hinge axis of the divided blocks is a starting block, a fixing pin is formed on the bottom surface of the last block, Wherein the elastic portion is attached to the contact surface of the smart electromyogram sensor. [2] The apparatus according to claim 1, wherein the elastic part has a conductive material in contact with the lower end of the elastic part so that the contact part serves as a reference electrode, Wherein a conductive plate is formed on the contact surface of the smart electromyogram sensor.

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