KR20180031610A - Band-type motion and bio-information measuring device - Google Patents

Abstract

The present invention relates to a band-type exercise and biometric information measuring apparatus, and more particularly, to an IMU (Inertial Measurement Unit) sensor for sensing acceleration and angular velocity information. A wireless communication module for wirelessly transmitting the sensed information; At least one electromyogram sensor for sensing the activity of the muscle force and the exercise state information in contact with the skin; And an input button and a display module of the measuring device are exposed on the other surface and have an IMU sensor, at least one second region provided so that the electromyogram sensor can be attached and detached, and at least one second region formed of a stretchable material, And a band consisting of a length adjusting portion connecting the two regions.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a band-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a band-type exercise and biometric information measuring apparatus, and more particularly to a band type exercise and biometric information measuring apparatus, .

In general, wearable devices developed for exercise information and health care have various types of products such as wrist wear, clothing type, and breast wearing type, but wrists such as Samsung, Apple, LG, Wearable commercial products are currently dominant in the market.

Conventional wearable devices include sensors such as an IMU (Inertial Measurement Unit) sensor including an acceleration, an angular velocity, or a gyro, a heart rate sensor for measuring heart rate, and sometimes GPS and an altimeter. Products are being released.

The exercise analysis element using the wearable device focuses on providing exercise and health information to the users' simple movements by processing the data measured from the sensors into the number of steps, activity amount, calorie consumption amount, and heart rate information.

The conventional exercise management system collects health information related to the user's heart rate, body temperature, blood pressure, etc., from the exercise apparatus, or measures activity amount and calorie consumption information in the aerobic exercise state of walking or running, The present invention focuses on providing a system of a health data management function for storing data of a user and checking the health state of the user, collecting user's exercise information for a fitness exercise, and providing analysis information enabling exercise analysis and exercise instruction using the collected exercise information There is a problem that can not be done.

The present invention has been conceived to solve the conventional problems, and it is an object of the present invention to provide an apparatus and a method for analyzing footnotes by providing motion information and biometric information together with basic motion measurement, And to provide a personalized exercise instruction method for the individual.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an apparatus for measuring band-type motion and bio-information, including: an IMU (Inertial Measurement Unit) sensor for sensing acceleration and angular velocity information; A wireless communication module for wirelessly transmitting the sensed information; At least one electromyogram sensor for sensing the activity of the muscle force and the exercise state information in contact with the skin; And a second region in which the input button and the display module of the measuring device are exposed on the other surface and are equipped with the IMU sensor, at least one second region provided so that the electromyogram sensor can be attached and detached, And a band formed of a length adjusting portion connecting the first region and the second region.

The IMU sensor includes a three-axis gyroscope sensor, a three-axis acceleration sensor, and a three-axis geomagnetic sensor.

The analyzer may analyze the EMG sensed by the EMG sensor in a period in which the repetitive motion information value sensed by the IMU sensor rises from a negative peak value to a positive peak value.

According to an embodiment of the present invention, rather than simply providing motion result information of users by processing the number of steps, activity amount, calorie consumption amount, and heart rate information of the user through the sensing information provided through the measurement device, By analyzing the information and the biometric information, it is possible to perform individual basic motion measurement and customized motion analysis.

1 is a structural view for explaining a motion analysis system using a band-type measuring apparatus.
2 is a functional block diagram illustrating a measurement apparatus according to an embodiment of the present invention.
3 is a view for explaining a measuring apparatus according to an embodiment of the present invention.
4 is a view for explaining an actual wearing example of a measuring apparatus employed in an embodiment of the present invention.
5 is a functional block diagram for explaining the detailed configuration of the IMU sensor of the present invention.
FIG. 6 is a view for explaining angle information and EMG signal information provided through the IMU sensor during repetitive aerobic exercise in an embodiment of the present invention; FIG.
7 is a flowchart for explaining a motion analysis method using a band-type measurement apparatus according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms " comprises, " and / or "comprising" refer to the presence or absence of one or more other components, steps, operations, and / Or additions.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a structural diagram for explaining a motion analysis system using a band-type measuring apparatus.

As shown in FIG. 1, a motion analysis system using a band-type measuring apparatus according to an embodiment of the present invention includes at least one measuring apparatus 100 and an analyzing apparatus 200.

2 is a functional block diagram illustrating a measurement apparatus according to an embodiment of the present invention. 2, the measurement apparatus 100 includes an IMU (Inertial Measurement Unit, hereinafter referred to as "IMU") sensor 110, a wireless communication module 120, at least one EMG sensor 130, (140).

The IMU sensor 110 senses acceleration and angular velocity information. The IMU sensor 110 senses acceleration and angular velocity generated after the user attaches the measuring apparatus 100 to one side of the body.

The wireless communication module 120 transmits the sensed information to the analysis device 200 wirelessly. Although various communication wireless communication means may be used for the wireless communication module 120, it is preferable to use a short-range communication means in this embodiment.

The electromyogram sensor 130 contacts the skin to sense the activity of the muscle and the motion state information. The electromyogram sensor 130 is connected to the wireless communication module 120 through a connector, and is detachable.

3, the band 140 includes a first region 141 in which the IMU sensor 110 is disposed, a first region 141 in which the EMG sensor 130 is detachably attached, And a length adjusting unit 145 which is made of a stretchable material and connects the first area 141 and the second area 143 with each other. At both ends of the band 140, detachable means are provided and can be worn as shown in FIG. 3 (b) and worn on the arm or foot of the body.

Meanwhile, the analyzer 200 receives the sensing information from the measurement apparatus 100 through wireless communication, extracts a portion of the measurement apparatus 100 installed using the acceleration and angular velocity information from the received sensing information And analyzes the electromyogram value of the muscle of the corresponding installation site using the EMG value sensed through the EMG sensor 130. [

Therefore, according to an embodiment of the present invention, it is possible to provide simple motion result information of users by processing the number of steps, activity, calorie consumption and heart rate information of a user through sensing information provided through the measurement device 100 In addition, there is an effect that an individual's basic motion measurement and a customized motion analysis can be performed by analyzing the user's exercise information and biometric information through the information of the angle and the velocity of the UMI sensor and the EMG information of the EMG sensor.

According to an embodiment of the present invention, since the band is composed of the first region, the second region, and the length adjusting unit, the measuring apparatus can be mounted on the body part to be measured, and the state of the body part can be detected and analyzed There are advantages.

In addition, according to the embodiment of the present invention, the electromyogram sensor is attached to and detached from the band, and the sensor suitable for each body part can be selectively used.

As shown in FIG. 4, the measuring apparatus 100 employed in an embodiment of the present invention can be worn on the thighs and the ankles, respectively, and can be worn on the forearms and wrists, respectively, of the upper arm.

Each of the measuring devices 100 thus worn transmits a signal sensed by the analyzing device 200. The analyzing device 200 measures the distance between the measuring device 100 worn on each thigh and the measuring device 100 worn on the ankle In order to synchronize the received sensing signals, they alternately receive the sensing signals from the respective measuring devices 100 in a polling manner.

Meanwhile, the measuring device employed in an embodiment of the present invention may further include a PPG sensor for sensing the blood flow signal in contact with the skin. It is preferable that the PPG sensor is provided on one surface of the first region 141 of the band so as to be in direct contact with the skin.

The measuring apparatus 100 may further include an input button for inputting user information and a display module for displaying the sensed information in real time so that the internal setting can be changed.

The IMU sensor 110, the PPG sensor, and the wireless communication module 120 may be provided on the other side of the first area 141 of the band, It is preferable to be provided on one surface of the band, that is, on the surface in contact with the body.

5 is a functional block diagram for explaining the detailed configuration of the IMU sensor of the present invention. As shown in FIG. 5, the IMU sensor 110 employed in an embodiment of the present invention includes a three-axis gyroscope sensor 111 for measuring an angular velocity generated when the measuring apparatus moves, Axis acceleration sensor 113 for measuring a magnetic field around the measurement device and a three-axis geomagnetic sensor 115 for measuring a magnetic field around the measurement device.

As described above, the IMU sensor 110 includes the three-axis gyroscope sensor 111, the three-axis acceleration sensor 113, and the three-axis geomagnetic sensor 115, so that the angle of the measurement device 100 worn on the body, (Pitch, Yaw, Roll) can be calculated.

Therefore, when the user attaches the measuring apparatus 100 to the thigh or the ankle, the angle of rotation of the thigh and the ankle relative to the x-axis, the y-axis, and the z-axis can be calculated.

6 is a view for explaining angle information and EMG signal information provided through the IMU sensor during repetitive aerobic exercise in an embodiment of the present invention.

Meanwhile, the analysis apparatus 200 employed in one embodiment of the present invention can be used as a basis for shrinkage and relaxation, such as root mean square (RMS), moving average (MOV), integration (INT), and power spectral density It is difficult to distinguish between the point where the muscle contracts correctly and the point where the muscle relaxes.

Therefore, the measuring apparatus 100 can extract the bent state of the arm or the leg relatively accurately, as shown in FIG. 6, through the acceleration information and the exercise information using the gyro.

The analyzer 200 analyzes the EMG sensed by the EMG sensor 130 during a period in which the repetitive motion information value sensed by the IMU sensor 110 rises from a negative peak value to a positive peak value do.

As described above, according to the analysis apparatus 200 employed in the embodiment of the present invention, all the EMG values provided in real time from the measurement apparatus 100 are not analyzed, and the repetitive motion information value is changed from a negative peak value to a positive peak value And thus it is possible to derive more meaningful exercise information.

According to an embodiment of the present invention, the analysis apparatus 200 may calculate an angle (Pitch, Yaw, Roll) from the information sensed from the triaxial gyroscope sensor 111 and the triaxial acceleration sensor 113 of the measurement apparatus 100, ) In other words, the rotation value can be known, but the position value of each body part can not be calculated.

Therefore, in order to calculate the position value of each body part to an arbitrary value, the position value previously measured and pre-stored according to the BVH format is used as the reference value. Then, a quaternion is used to handle the attitude angle of the IMU sensor 110 in the three-dimensional space.

For example, in order to measure the leg motion, the thigh and ankle pre-stored position values are set to arbitrary values, and then the information of the IMU sensor 110 is processed to calculate the rotation angle of the thighs and the ankles.

Meanwhile, the analysis apparatus 200 uses an inverse kinematics equation to estimate the knee rotation value. That is, motion of thighs and ankles, which are end joints, is calculated by applying rotation values from the sensing information of the IMU sensor 110 to pre-stored position values, and the knee, which is the middle joint, Calculate the rotation value using inverse kinematics from the coordinate values.

Then, the analyzer 200 analyzes the information on the intensity of the exercise through the heart rate / breath rate information sensed by the PPG sensor of the measurement apparatus 100, and then ends the measurement.

7 is a flowchart for explaining a motion analysis method using a band-type measurement apparatus according to an embodiment of the present invention.

As shown in FIG. 7, the analysis apparatus 200 according to an embodiment of the present invention may first perform aerobic exercise measurement.

To this end, the user selects a sport item through an input button of the measurement apparatus 100 (S111). If the exercise item selected by the user is an aerobic exercise (S112), the analysis apparatus 200 confirms the attachment position of the measurement apparatus 100 (S113). In an embodiment of the present invention, a method of confirming the attachment position of the measurement apparatus 100 uses a position value measured in advance according to the BVH format as a reference value in order to estimate a previously stored position value of each body part to an arbitrary value . That is, a quaternion is used to deal with the attitude angle of the IMU sensor 110 in a three-dimensional space.

Thereafter, when the user starts to exercise, the analyzer 200 receives the sensing information sensed by the IMU sensor 110 and measures the motion of the measuring device 100 (S114). That is, the analyzer 200 calculates the three-axis rotation angle of the measurement site from the received sensing information, and calculates the three-axis rotation angle of the middle joint.

Thereafter, the analysis apparatus 200 measures the activity of the sensed muscle force and the motion state information through the electromyogram sensor 130 (S115).

Meanwhile, the analytical apparatus 200 according to another embodiment of the present invention can measure the body movement and the exercise attitude of the resistive exercise such as squat, which is the main operation of sitting and standing by mounting the measuring apparatus 100 on the thigh have. That is, the analyzer 200 can perform motion analysis according to muscle activity, motion analysis, exercise tempo, and exercise intensity of the thigh.

In addition, the analytical device 200 according to another embodiment of the present invention includes the measurement device 100 mounted on the thigh or the ankle, so that the muscular strengthening or arm movement of the arm, such as a curling or pressing down, Activity of the arm, analysis of the motion of the arm, and intensity of the exercise can be analyzed, and the measurement device 100 can be attached to the upper arm or wrist of the forearm, and then the exercise posture and the movement of the arm can be measured.

In addition, the analysis apparatus 200 according to another embodiment of the present invention may analyze the posture of motion recognition and exercise.

To this end, the analyzer 200 receives acceleration and angular velocity information from the IMU sensor 110 of the measuring device 100, and receives an EMG signal from the EMG sensor. At this time, the analyzer 200 can reduce errors caused by noise and external influences through the sensing information acquired from the measuring device 100, and can perform operations to process the data into reliable data for each data have.

That is, the analyzer 200 calculates displacements (angles and velocities) with respect to the movement of the body parts attached with the measuring device 100 and calculates the displacements in three axial directions (Pitch, Yaw, Roll) In order to extract the rotation value, the error of each sensor is compensated by using the data of the gyro sensor, the acceleration sensor and the geomagnetic sensor, or the angle of the direction which can not be calculated is calculated.

Accordingly, the analysis apparatus 200 first estimates the movement of the body part through a sensing signal provided through the IMU sensor 110 of the measurement apparatus 100.

Thereafter, the analysis apparatus 200 needs to estimate the movement of the elbow or the knee since the attachment position of the measurement apparatus 100 is the upper arm and the wrist, or the thigh and the ankle.

At this time, the angles of the elbow and the knee are calculated using inverse kinematics to estimate the movement of the elbows and knees.

Then, the motion of the actual user is recognized and analyzed using the motion data of each joint extracted from the joint motion.

Meanwhile, the analyzer 200 recognizes the motion of each body part for each exercise using the feature parameter detection and motion recognition / analysis algorithm, and extracts the motion characteristics of the body during the specific exercise using the feature parameter detection algorithm It is possible to grasp the characteristics of the motion for the motion.

Therefore, the analysis apparatus 200 can not accurately recognize movements such as arms and legs, for example, raise, sit, raise, and arm movements. Therefore, by using a pattern recognition algorithm such as SVM, It is possible to recognize / identify a specific motion of the actual motion.

While the present invention has been described in detail with reference to the accompanying drawings, it is to be understood that the invention is not limited to the above-described embodiments. Those skilled in the art will appreciate that various modifications, Of course, this is possible. Accordingly, the scope of protection of the present invention should not be limited to the above-described embodiments, but should be determined by the description of the following claims.

100: Measuring device 110: IMU sensor
120: wireless communication module 130: electromyogram sensor
140: Band 200: Analyzer

Claims (1)

An IMU (Inertial Measurement Unit) sensor for sensing acceleration and angular velocity information;
A wireless communication module for wirelessly transmitting the sensed information;
At least one electromyogram sensor for sensing the activity of the muscle force and the exercise state information in contact with the skin; And
At least one second area exposed to the other surface of the input device and the display module and equipped with the IMU sensor, at least one second area provided so that the electromyogram sensor can be attached and detached, And a band comprising a length adjuster connecting the first region and the second region.

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