KR20140046249A - Muscle evaluation method by controlling external devices - Google Patents

Abstract

The present invention provides a system for controlling external devices using electromyogram which includes an electromyogram sensor module which is attached to the body of a user and obtains an electromyogram signal by detecting the movement of the user, a control part which calculates a measurement parameter related to muscle fatigue by using the obtained electromyogram signal and outputs an operation signal by using the calculated measurement parameter, and an interface part which transmits the outputted operation signal to the external devices and controls the external devices by the operation signal, and a muscle evaluation method. [Reference numerals] (110) Electromyogram sensor module; (120) Signal processing part; (130) Control part; (140) Database; (150) Interface part; (AA) Attaching; (BB) Detaching; (CC) Exercise equipment; (DD) Smartphone; (EE) Smart TV; (FF) Tablet PC

Description

External device control system and muscle evaluation method using EMG signal {MUSCLE EVALUATION METHOD BY CONTROLLING EXTERNAL DEVICES}

The present invention relates to a method for efficiently utilizing an EMG signal, which is an example of a biosignal according to a user's movement.

Regular exercise and physical activity have been proven to benefit health promotion and maintenance in many ways. However, excessive exercise that doesn't take into account your health can have side effects on your cardiovascular and musculoskeletal systems. In particular, in an exercise requiring muscle strength and endurance, excessive exercise without considering their muscle condition may cause serious injury. In addition, the assessment of muscle condition is very important for patients with damage to the musculoskeletal system or patients requiring rehabilitation treatment. Therefore, exercise evaluation and exercise prescription should be made at the same time before the strength exercise to predict in advance whether the muscle deterioration and damage caused by the exercise.

If you put a strain on your muscles or overwork your muscles through exercise, fatigue material builds up in your muscles and muscle fatigue occurs. One of the most widely used methods for non-invasively determining muscle fatigue is the method of measuring electromyography using surface electrodes. Surface electromyography can be obtained by non-invasive and pain-free method by attaching electrodes to the surface of the skin, and widely used for indirect measurement of muscle contraction and muscle fatigue by analyzing the electromyography obtained by using it. have.

Electromyogram is a recording of the unit activity potential that is conducted along muscle fibers and occurs when muscles contract and relax. Muscle fatigue also results in increased amplitude and prolonged periods. Root mean square (RM), amplitude EMG (aEMG), integral EMG (IEMG), etc. are used in time domain for analysis of muscle fatigue using surface electromyography, and mean frequency and median frequency in frequency domain. ) Is used.

Muscle Fatigue analysis using EMG in the frequency domain is known to reduce the value of median and mean frequencies as the frequency spectrum of EMG shifts to the left when muscle fatigue occurs due to muscle contraction. Therefore, as muscle fatigue occurs, the frequency of EMG moves to a lower frequency while the center frequency and the mean frequency decrease. However, in analyzing the EMG in the time domain, it is known that aEMG increases with the accumulation of muscle fatigue and there is a direct correlation between the two variables. This is also the case with the IEMG analysis, which shows that IEMG increases as muscle fatigue increases.

In the prior art, muscle strength and muscular endurance tests have been performed as a method for evaluating the function of muscles. In particular, the muscular endurance test can be performed by measuring the maximum number of repetitions using the exercise load lower than the maximum exercise load or measuring the isometric exercise duration. You can use your own body weight or machine, such as push-ups or sit-ups. However, this method is difficult to quantitatively evaluate the condition of the muscle and has a disadvantage that must be done before the exercise prescription. However, the present invention provides a method for evaluating muscle strength while using an external device such as a game machine without using maximum muscle strength.

An embodiment of the present invention calculates a measurement parameter indicating muscle fatigue using an EMG signal, automatically adjusts an exercise load corresponding to the measurement parameter, or adjusts the state of muscle with an operation signal output by the measurement parameter. An external device control system and method using an EMG signal, which can control game contents that can be evaluated, are provided.

An embodiment of the present invention is to attach the EMG module to the upper and lower limbs of patients suffering from damage to the musculoskeletal system, patients in need of rehabilitation or the general public, and perform exercise and rehabilitation treatment using EMG signals obtained from EMG modules. The present invention provides a system and method for controlling an external device using an EMG signal by extracting muscle fatigue in real time so that a direction key corresponding to the extracted muscle fatigue can be manipulated or a set key can be operated.

An embodiment of the present invention is an external device control system using an EMG signal that can objectively analyze the muscle state of the user himself through the immediate biofeedback and apply the appropriate exercise load according to the muscle state of the user during personal training or rehabilitation treatment And methods.

An embodiment of the present invention by using the EMG signal to generate a key operation signal that can interface with an external device such as a smart phone, smart TV, PC, tablet PC to the EMG signal that can perform personal training and rehabilitation treatment Provided are an external device control system and method.

An external device control system using an EMG signal according to an embodiment of the present invention is attached to the user's body, the EMG sensor module for detecting the user's movement to obtain an EMG signal, muscle fatigue using the obtained EMG signal A control unit for calculating a measurement parameter associated with the control unit, outputting an operation signal using the calculated measurement parameter, and an interface unit for transmitting the output operation signal to an external device to control the external device by the operation signal. .

The EMG module may be designed to be portable, and may be designed as a cuff type that may be attached to or detached from the body of the user.

If the calculated measurement parameter exceeds the reference value than the first measurement parameter calculated before the selected time, the controller determines that the muscle fatigue is increased, outputs an operation signal for reducing the muscle fatigue, and calculates the calculated When the measurement parameter is less than the reference value than the first measurement parameter calculated before the predetermined time, it is determined that the muscle fatigue is reduced, it is possible to output an operation signal for increasing the muscle fatigue.

The interface unit may transmit a key operation signal corresponding to an operation signal for reducing muscle fatigue to the external device, or a key operation signal corresponding to an operation signal for increasing muscle fatigue to the external device.

The external device control system using the EMG signal may include the number of times that the calculated measurement parameter exceeds the reference value than the first measurement parameter, the number of times the calculated measurement parameter is less than the reference value than the first measurement parameter, and the operation signal is transmitted. The apparatus may further include a database configured to store a response time of the external device, an average, and a variance of the response time associated with the EMG signal.

The database may store personal information of a user including at least one of a name, an age, an ID, and an EMG acquisition position associated with the user.

The external device control system using the EMG signal may further include game content manipulated according to an operation signal transmitted by the interface unit. The database may store a game result and a game process associated with the game content.

In an external device control method using an EMG signal according to an embodiment of the present invention, using the EMG sensor module attached to the user's body to detect the user's movement to obtain an EMG signal, using the obtained EMG signal Calculating a measurement parameter associated with muscle fatigue, outputting an operation signal using the calculated measurement parameter, and transmitting the output operation signal to an external device to control the external device by the operation signal Steps.

According to one embodiment of the invention, the exercise load is automatically adjusted according to the muscle fatigue of the user's exercise site, it is possible to exercise with the exercise load suitable for the user's muscle state, using the interesting game content to exercise interest in exercise The effect can be maximized.

According to one embodiment of the present invention, by applying to patients with damage to the musculoskeletal system or patients in need of rehabilitation, rehabilitation can be performed with an exercise load appropriate to the muscle condition of the patient, and the result of the rehabilitation exercise through immediate feedback The degree of recovery of the motor function can be indirectly evaluated, and the game contents can be used to induce interest in the rehabilitation exercise to maximize the effect of the rehabilitation treatment, and to allow the patient to repeatedly perform active rehabilitation treatment.

According to one embodiment of the present invention, by controlling the electronic device according to the muscle movement of the user to rehabilitation, the intervention of the rehabilitation therapist or assistant can be reduced, and the patient's participation in active rehabilitation treatment can be induced.

According to one embodiment of the present invention, the result of performing the rehabilitation treatment of the patient can be accurately recorded and analyzed as the response time and the game score, and the rehabilitation treatment time and the cost are reduced to enable more efficient rehabilitation treatment.

1 is a block diagram illustrating a configuration of an external device control system using EMG signals according to an embodiment of the present invention.
2 and 3 illustrate an example of outputting an operation signal using IEMG, which is a measurement parameter according to an embodiment of the present invention.
4 and 5 are diagrams illustrating an example of outputting an operation signal using the measurement parameter MNF according to an embodiment of the present invention.
6 and 7 illustrate examples of manipulating game content according to an operation signal according to an embodiment of the present invention.
8 is a flowchart illustrating a procedure of a method for controlling an external device using an EMG signal according to an embodiment of the present invention.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings and accompanying drawings, but the present invention is not limited to or limited by the embodiments.

1 is a block diagram illustrating a configuration of an external device control system using EMG signals according to an embodiment of the present invention.

Referring to FIG. 1, an external device control system 100 using an EMG signal may include an EMG sensor module 110, a signal processor 120, a controller 130, a database 140, and an interface unit 150. Can be.

The EMG module 110 is attached to the body of the user to detect the movement of the user to obtain an EMG signal. The EMG module 110 may be attached anywhere in the body part of the user where the EMG signal can be obtained from the user. In an embodiment, the EMG module 110 may be carried in a carry type and may be designed as a cuff type that may be attached to or detached from the body of the user.

The signal processor 120 may perform signal processing such as amplification or filtering on the obtained EMG signal. The signal processor 120 may amplify the acquired EMG signal when the obtained EMG signal is weak, and perform filtering to remove noise when the amplified EMG signal includes a lot of noise.

The controller 130 calculates a measurement parameter associated with muscle fatigue using the obtained EMG signal, and outputs an operation signal using the calculated measurement parameter. In an embodiment, the EMG signal may include integral EMG (IEMG), integral absolute value (IAV), and zero crossing (ZC) as measurement parameters in an optical plane analysis, mean frequency (MNF) in frequency plane analysis, The median frequency (MDF) may be included as a measurement parameter.

For example, when muscle fatigue increases, IEMG may increase in time plane analysis of the EMG signal, and in case of frequency plane analysis, MNF or MDF may decrease. Alternatively, when the muscle fatigue decreases, IEMG may decrease in time plane analysis of the EMG signal, and MNF and MDF may decrease in frequency plane analysis.

In an embodiment, if the calculated measurement parameter exceeds the reference value than the first measurement parameter calculated before the selected time, the controller 130 determines that the muscle fatigue has increased, and provides an operation signal for reducing the muscle fatigue. You can print The first measurement parameter is a parameter calculated at a time earlier than the calculated measurement parameter, and the calculated measurement parameter may be named as the second measurement parameter in ascending order according to the calculated time sequence.

The selected time may be selected in 1 minute, 3 minutes, 5 minutes, 10 minutes or in real time as a time immediately before calculating the second measurement parameter. In addition, the reference value may be selected as 5%, 10% as a percentage difference between the first and second measurement parameters, or may be selected as a parameter value '100' with reference to the average of the measurement parameters.

If the second measurement parameter is less than the reference value than the first measurement parameter calculated before the selected time, the controller 130 determines that the muscle fatigue is reduced, and may output an operation signal for increasing the muscle fatigue.

Therefore, the interface unit 150 transmits the output operation signal to an external device, and controls the external device by the operation signal. Here, the external device may include a device such as an exercise device, a smartphone, a smart TV, a PC, a tablet PC, and the like. For example, the interface unit 150 may transmit the manipulation signal to the external device through wireless communication such as Zigbee, Bluetooth, or LAN communication.

In an embodiment, the interface unit 150 may transmit a key operation signal corresponding to the operation signal for reducing the muscle fatigue to the external device, or transmit a key operation signal corresponding to the operation signal for increasing the muscle fatigue. Can be sent to. For example, the external device may input a letter or number or move a key in an up / down / left / right direction. Among the external devices, the exercise device may increase or decrease the user's exercise load as the number increases or decreases using numbers between '0 and 255', and increases or decreases the exercise load by a predetermined intensity using the up / down arrow keys. You can. In addition, an external device that executes game content among the external devices may be manipulated through input of a text key, a numeric key, and a direction key.

The database 140 may determine the number of times the calculated measurement parameter exceeds the reference value than the first measurement parameter, the number of times the calculated measurement parameter is less than the reference value than the first measurement parameter, and the response of the external device to which the operation signal is transmitted. Time, average and variance of response time associated with the EMG signal.

In addition, the database 140 may store personal information of the user including at least one of a name, age, ID, and EMG acquisition location associated with the user. The user may manipulate the game content according to an operation signal transmitted by the interface unit 150. In this case, the database 140 may store a game result and a game process associated with the game content.

2 and 3 illustrate an example of outputting an operation signal using IEMG, which is a measurement parameter according to an embodiment of the present invention.

Referring to FIG. 2, the controller 130 may adjust the load of the exercise equipment by increasing or decreasing the operation signal according to the muscle fatigue of the user. For example, the controller 130 calculates a second IEMG (second measurement parameter) representing a muscle fatigue level of the user in an eye plane analysis (S210), and the second IEMG measures the first IEMG measured before the second IEMG. It may be determined whether the difference is larger or smaller than the reference value (10%) (S220).

If the second IEMG exceeds the reference value than the first IEMG, the controller 130 determines that the muscle fatigue is increased, and the downward direction exercise load operation is reduced by 10% from the exercise load of the first IEMG. The signal may be output (S230). Therefore, when the measurement parameter associated with the muscle fatigue of the user increases in the plane of view, the controller 130 may output an exercise load manipulation signal for reducing the exercise load of the exercise equipment.

However, when the second IEMG is less than or equal to the reference value than the first IEMG in the plane view analysis, the controller 130 determines that the muscle fatigue is reduced, and increases the exercise load of the first IEMG by 10%. In order to output the upward direction of the motion load operation signal (S240). Therefore, when the measurement parameter associated with the muscle fatigue of the user decreases or does not change in the viewing plane, the controller 130 may output an exercise load manipulation signal for increasing the exercise load to the exercise device.

Referring to FIG. 3, the controller 130 may perform game content by outputting respective key manipulation signals according to the muscle fatigue level of the user. For example, the control unit 130 calculates a second IEMG representing the muscle fatigue of the user in the eye plane analysis (S310), and the difference between the first IEMG measured before the second IEMG by the second IEMG is a reference value (10%). It may be determined whether greater than or less than (S320).

If the second IEMG exceeds the reference value than the first IEMG, the controller 130 determines that the muscle fatigue is increased, and thus the down direction key manipulation signal corresponding to the 'down' direction key or the numeric key '1'. It may output (S330). Therefore, when the measurement parameter associated with the muscle fatigue of the user increases in the plane of view, the controller 130 may output a key manipulation signal for inputting the 'down' direction key or the numeric key '1' to the external device.

However, in the plane analysis, when the second IEMG is less than the reference value than the first IEMG or there is no change, the controller 130 determines that the muscle fatigue is reduced and corresponds to the 'up' direction key or the numeric key '2'. The up direction key manipulation signal may be output (S340). Therefore, when the muscle fatigue parameter of the user decreases or does not change, the controller 130 may output a key operation signal for inputting the 'up' direction key or the numeric key '2' to the external device.

To this end, the controller 130 presets a corresponding direction key or numeric key when the measurement parameter is increased or decreased, and when the measurement parameter is increased, the down direction key manipulation signal so that the set direction key or numeric key can be input. When the measurement parameter is reduced, the up direction key manipulation signal can be output so that the set direction key or the numeric key can be input.

Accordingly, the interface unit 150 controls the external device by transmitting the down direction key operation signal to the external device or by transmitting the up direction key operation signal to the external device.

4 and 5 are diagrams illustrating an example of outputting an operation signal using the measurement parameter MNF according to an embodiment of the present invention.

Referring to FIG. 4, the controller 130 calculates a second MNF (second measurement parameter) of the user in the frequency plane (S410), and the calculated second MNF of the first MNF measured before the second MNF. It may be determined whether the difference is larger or smaller than the reference value (10%) (S420).

If, in the frequency plane analysis, the second MNF exceeds the reference value than the first MNF, the controller 130 determines that the muscle fatigue has increased, so as to reduce the exercise load of the first MNF by 10%. Downward movement load operation signal can be output (S430).

However, in the frequency plane analysis, when the second MNF is less than or equal to the reference value than the first MNF or there is no change, the controller 130 determines that the muscle fatigue is reduced, thereby increasing the exercise load of the first MNF by 10%. In such a manner, the upward direction motion load manipulation signal may be output (S440).

Referring to FIG. 5, the controller 130 may perform game content by outputting respective key manipulation signals according to the muscle fatigue level of the user. For example, the controller 130 calculates a second MNF representing the muscle fatigue of the user in the frequency plane analysis (S510), and the difference between the first MNF measured before the second MNF is a reference value (10). It may be determined whether greater than or less than (%) (S520).

If, in the frequency plane analysis, the second MNF exceeds the reference value than the first MNF, the controller 130 determines that the muscle fatigue is increased, and thus the downward corresponding to the 'down' direction key or the numeric key '1'. The direction key manipulation signal may be output (S530). Therefore, when the measurement parameter associated with the muscle fatigue of the user increases in the plane of view, the controller 130 may output a key manipulation signal for inputting the 'down' direction key or the numeric key '1' to the external device.

However, in the frequency plane analysis, when the second MNF is less than or equal to the reference value than the first MNF, or not changed, the controller 130 determines that the muscle fatigue is reduced, so that the 'up' direction key or the numeric key '2' The corresponding upward direction key operation signal may be output (S540). Therefore, when the muscle fatigue parameter of the user decreases or does not change, the controller 130 may output a key operation signal for inputting the 'up' direction key or the numeric key '2' to the external device.

According to an exemplary embodiment, the key manipulation signal may be matched with various keys as well as a direction key or a numeric key of the keyboard, and may substitute for a mouse, a keypad, or a touch sensor.

6 and 7 illustrate examples of manipulating game content according to an operation signal according to an embodiment of the present invention.

Referring to FIG. 6, when the controller 130 determines that the muscle fatigue of the user is reduced by the measurement parameter indicating the muscle fatigue in the analysis of the plane of view and the frequency plane, the controller 130 outputs an upward movement load control signal to the external device. The speed 620 of the rocket 610 is increased by the upward motion load manipulation signal, and the score acquisition amount 630 may be increased.

Alternatively, when the controller 130 determines that the user's muscle fatigue is increased through the measurement parameter, the controller 130 outputs a downward direction motion load manipulation signal, so that the speed of the rocket 610 is controlled by the downward direction motion load manipulation signal from an external device. 620 may be decreased to decrease the score acquisition amount 630.

Alternatively, the controller 130 may match the change of the muscle fatigue measurement parameter according to the muscle state to the direction key and the numeric key. Therefore, when it is determined that the muscle fatigue of the user is reduced by the measurement parameter, the controller 130 outputs the upward direction key operation signal, so that the external device generates the 'up' direction key or the numeric key 'by the upward direction key operation signal. 2 'may be input to increase the speed 620 of the rocket 610 and increase the score acquisition amount 630. Alternatively, when it is determined that the muscle fatigue of the user is increased through the measurement parameter, the controller 130 outputs a down direction key operation signal, so that the external device uses the down direction key or numeric key by the down direction key operation signal. 1 'may be input to decrease the speed 620 of the rocket 610 to decrease the score acquisition amount 630.

For reference, in FIG. 6, an indirect evaluation of the muscle state may be performed according to a score amount acquired within a predetermined time 740 in a game method of changing the speed of the rocket and the score acquisition amount according to the muscle state.

Referring to FIG. 7, the controller 130 may match a change in a muscle fatigue measurement parameter indicating a muscle state to a direction key and a numeric key. When the controller 130 determines that the user's muscle fatigue decreases or does not change due to a change in the muscle fatigue measurement parameter, the controller 130 outputs an upward direction key operation signal, thereby increasing the rotation speed of the gear 740 in the game content and fuel. May increase the charging speed (730). In addition, when the controller 130 determines that the muscle fatigue of the user has increased due to a change in the measurement parameter, the controller 130 outputs a down direction key manipulation signal, thereby reducing the rotation speed of the gear 740 in the game content and charging the fuel. Speed 730 may be reduced.

As such, FIG. 7 may indirectly evaluate the root condition according to the time 710 of filling the fuel fill amount 720 determined by the game type in which the gear speed and the fuel fill amount are changed according to the root condition. .

Since the present invention adjusts the exercise load according to the degree of fatigue according to the exercise load of the muscle, the present invention has a feature of evaluating muscle strength indicating how quickly and efficiently a given work can be efficiently performed without using maximum muscle strength.

8 is a flowchart illustrating a procedure of a method for controlling an external device using an EMG signal according to an embodiment of the present invention.

In operation S810, an external device control method using an EMG signal (hereinafter, an 'external device control method') obtains an EMG signal by detecting a movement of the user using an EMG sensor module attached to a user's body. Here, the EMG module may be designed in a position where the EMG signal can be obtained from the user, that is, attached to any part of the body of the user, portable, and may be designed as a cuff type that may be detached or attached to the user's body. .

In operation S820, the external device control method calculates a measurement parameter associated with muscle fatigue using the obtained EMG signal. The EMG signal may include IEMG, IAV, and ZC as measurement parameters in time plane analysis, and include average frequency and median frequency as measurement parameters in frequency plane analysis.

For example, when muscle fatigue increases, IEMG may increase in time plane analysis of the EMG signal, and in case of frequency plane analysis, MNF or MDF may decrease. Alternatively, when the muscle fatigue decreases, IEMG may decrease in time plane analysis of the EMG signal, and MNF and MDF may decrease in frequency plane analysis.

In step S830, the external device control method outputs an operation signal using the calculated measurement parameter. For example, when the calculated measurement parameter exceeds the reference value than the first measurement parameter calculated before the selected time, the external device control method determines that the muscle fatigue is increased, thereby reducing the muscle fatigue. You can output The external device control method may determine that muscle fatigue is reduced when the calculated measurement parameter is less than a reference value calculated before the selected time, and output an operation signal for increasing the muscle fatigue. have.

In step S840, the external device control method transmits the output operation signal to an external device, and controls the external device by the operation signal. For example, the method for controlling an external device may transmit a key operation signal corresponding to the operation signal for reducing the muscle fatigue to the external device, or transmit a key operation signal corresponding to the operation signal for increasing the muscle fatigue to the external device. Can transmit

The method for controlling the external device may include: the number of times the calculated measurement parameter exceeds a reference value than the first measurement parameter, the number of times the calculated measurement parameter is less than the reference value than the first measurement parameter, and the number of the external device to which the operation signal is transmitted. A user's personal information including at least one of a response time, an average and a variance of a response time associated with the EMG signal, a name, an age, an ID, and an EMG acquisition position associated with the user, and game content manipulated according to the transmitted manipulation signal The game result, game process, and the like associated with the server may be stored in a database.

The external device control method feeds back quantitatively and objectively data based on the data stored in the database, so that the user provides quantitatively the rehabilitation treatment effect, and checks the rehabilitation training game that lacks the task solving degree and repeatedly executes the rehabilitation training game. Can be.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill 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. This is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

100: external device control system using EMG signal
110: EMG sensor module
120: Signal processor
130:
140: Database
150:

Claims (13)

An EMG sensor module attached to a body of a user to detect an EMG signal by detecting a movement of the user;
A control unit configured to calculate measurement parameters associated with muscle fatigue using the obtained EMG signals and to output an external device operation signal using the calculated measurement parameters;
An interface unit which transmits the output operation signal to an external device and controls the external device by the operation signal to adjust an exercise load; And
How to analyze and evaluate the strength of the user from the system
External device control system using an EMG signal comprising a. The method of claim 1,
The EMG module,
An external device control system using an EMG signal, which is portable and is designed to be a cuff type that can be attached or detached to a user's body. The method of claim 1,
Wherein,
When the calculated measurement parameter exceeds the reference value than the first measurement parameter calculated before the selected time, it is determined that the muscle fatigue is increased, and outputs an operation signal for reducing the exercise load,
And when the calculated measurement parameter is less than a reference value than the first measurement parameter calculated before the predetermined time, determines that the muscle fatigue is reduced, and outputs an operation signal for increasing the exercise load. The method of claim 3,
The interface unit includes:
Biofeedback using an EMG signal to transmit a key operation signal corresponding to the operation signal to reduce the exercise load to the external device, or to transmit the key operation signal corresponding to the operation signal to increase the exercise load to the external device External device control system. The method of claim 3,
The number of times the calculated measurement parameter exceeds the reference value than the first measurement parameter, the number of times the calculated measurement parameter is less than the reference value than the first measurement parameter, the reaction time of the external device to which the operation signal is transmitted, the EMG signal Database that stores the average and variance of response times associated with
Further comprising, the external device control system using the EMG signal. 6. The method of claim 5,
The database includes:
And a user's personal information including at least one of a name, an age, an ID, and an EMG acquisition position associated with the user. 6. The method of claim 5,
Further comprising game content manipulated according to the operation signal transmitted by the interface unit,
The database includes:
The external device control system using the EMG signal for storing the game result, the game process associated with the game content. Obtaining an EMG signal by detecting a movement of the user using an EMG sensor module attached to a user's body;
Calculating measurement parameters associated with muscle fatigue using the obtained EMG signal;
Outputting an operation signal using the calculated measurement parameter; And
Transmitting the output operation signal to an external device to control the external device by the operation signal;
External device control method using an EMG signal comprising a. 9. The method of claim 8,
The step of outputting the operation signal using the calculated measurement parameter,
If the calculated measurement parameter exceeds a reference value than the first measurement parameter calculated before the predetermined time, determining that the muscle fatigue has increased, and outputting an operation signal for reducing the muscle fatigue; or
If the calculated measurement parameter is less than a reference value than the first measurement parameter calculated before the selected time, determining that the muscle fatigue is reduced, and outputting an operation signal for increasing the muscle fatigue degree;
External device control method using an EMG signal comprising a. 10. The method of claim 9,
The transmitting of the output operation signal to an external device,
Transmitting a key operation signal corresponding to the operation signal for reducing the muscle fatigue to the external device; or
Transmitting a key manipulation signal corresponding to the manipulation signal to increase the muscle fatigue to the external device;
External device control method using an EMG signal comprising a. 10. The method of claim 9,
The number of times the calculated measurement parameter exceeds the reference value than the first measurement parameter, the number of times the calculated measurement parameter is less than the reference value than the first measurement parameter, the reaction time of the external device to which the operation signal is transmitted, the EMG signal Storing the mean and variance of the response times associated with the database in a database
Further comprising, the external device control method using the EMG signal. 12. The method of claim 11,
The steps for storing in the database are:
Storing personal information of the user in the database including at least one of a name, age, ID and EMG acquisition location associated with the user
Including, the external device control method using the EMG signal. 12. The method of claim 11,
The steps for storing in the database are:
Storing a game result and a game process associated with game content manipulated according to the transmitted manipulation signal in the database; And
External device control process using the EMG signal parameter
Including, EMG signal and muscle state evaluation method using an external device.

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