KR102009087B1 - Correction method for exercise posture using multiple wearable devices and correction system for exercise posture - Google Patents

Abstract

A method of correcting an exercise posture using a plurality of wearable devices may include: obtaining, by a terminal device, motion information regarding a specific exercise motion, receiving, by the terminal device, motion information from a plurality of wearable devices located at different body parts; Calculating, by the terminal device, at least one of a difference between accelerations of the plurality of body parts and an angle with a reference point by using the motion information; and the terminal device calculates a value of the motion information and the at least one. And comparing the movement posture of the user.

Description

Exercise posture correction method and system using a plurality of wearable devices {CORRECTION METHOD FOR EXERCISE POSTURE USING MULTIPLE WEARABLE DEVICES AND CORRECTION SYSTEM FOR EXERCISE POSTURE}

Techniques described below relate to exercise posture monitoring or exercise posture correction techniques using a plurality of wearable devices.

Recently, various wearable devices such as smart glasses, smart watches, and smart bands have emerged along with smartphones. Devices such as smart watches or smart bands collect movement information of the wearer and provide various information based on the collected information. For example, the smart band may inform the wearer's moving distance, the number of steps, or the like by calculating the amount of exercise.

Korean Patent Publication No. 10-2017-0062105

Conventional exercise methods using a wearable device basically used a wearable device and a terminal device. When one wearable device is used, the possible exercise is limited, and since only information on one body part is transmitted, the exercise posture correction has been limited. The technology described below is intended to provide a method for monitoring movement of different body parts using a plurality of wearable devices.

A method of correcting an exercise posture using a plurality of wearable devices may include: obtaining, by a terminal device, motion information regarding a specific exercise motion, receiving, by the terminal device, motion information from a plurality of wearable devices located at different body parts; Calculating, by the terminal device, at least one of a difference between accelerations of the plurality of body parts and an angle with a reference point by using the motion information; and the terminal device calculates a value of the motion information and the at least one. And comparing the movement posture of the user.

An exercise posture correcting system using a plurality of wearable devices is located at a reference position among a plurality of different body parts, and the movement received from a plurality of wearable devices and the wearable device to obtain movement information of the reference position through short-range wireless communication. Calculates a value for at least one of the difference in acceleration for each of the plurality of body parts and an angle with a reference point by using the information, and determines a user's exercise posture by comparing previously known motion information with a value for the at least one. It includes a terminal device.

In the technology described below, the terminal device and the plurality of wearable devices perform 1: N communication based on BLE (Bluetooth Low Energy) communication to simultaneously estimate a plurality of body part postures. This allows more accurate posture correction for various types of exercises.

1 is an example showing the configuration of an exercise posture correcting system.
2 is an example of an operation of giving feedback to a user.
3 illustrates an example of a wearable device and a terminal device.
4 is another example illustrating the configuration of a wearable device and a terminal device.
5 illustrates an example of a structure of a packet transmitted by a wearable device.
6 is an example of measuring the exercise posture in the exercise posture correcting system.
7 is another example of measuring the exercise posture in the exercise posture correcting system.
8 is another example of measuring an exercise posture in an exercise posture correcting system.
9 illustrates an example in which multiple users use the exercise posture correction system.

The following description may be made in various ways and have a variety of embodiments, specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the technology described below to specific embodiments, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the technology described below.

The terms first, second, A, B, etc. may be used to describe various components, but the components are not limited by the terms, but merely for distinguishing one component from other components. Only used as For example, the first component may be referred to as the second component, and similarly, the second component may be referred to as the first component without departing from the scope of the technology described below. The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It is to be understood that the present invention means that there is a part or a combination thereof, and does not exclude the presence or addition possibility of one or more other features or numbers, step operation components, parts or combinations thereof.

Prior to the detailed description of the drawings, it is to be clear that the division of the components in the present specification is only divided by the main function of each component. That is, two or more components to be described below may be combined into one component, or one component may be provided divided into two or more for each function. Each of the components to be described below may additionally perform some or all of the functions of other components in addition to the main functions of the components, and some of the main functions of each of the components are different. Of course, it may be carried out exclusively by.

In addition, in carrying out the method or operation method, each process constituting the method may occur differently from the stated order unless the context clearly indicates a specific order. That is, each process may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

Recently, various wearable devices have appeared. The representative of the application services using the wearable device is health care. Application services include calorie consumption based on user's mileage alert, workout distance and workout time. Most wearable devices provide certain information to the user in conjunction with the user's smartphone.

The technology described below provides an apparatus for instructing a user in an exercise motion by using a plurality of wearable devices. Alternatively, the technique described below may be referred to as a device for correcting a user's exercise motion. There are many types of exercises that the techniques described below can correct.

When a user exercises, a specific body part moves and its position changes. Positional changes of body parts can be defined as angles in relation to a constant reference point or baseline. In addition, the change in the position of the body part may be defined by physical quantities such as acceleration, change in acceleration, change in angular velocity, and the like.

The technique described below monitors a user's motion based on a change in angle or a change in physical quantity according to body movement using a plurality of wearable devices. Furthermore, the technology described below may alarm or instruct a certain operation to enable a user to take correct exercise by using a plurality of wearable devices.

Hereinafter, a terminal device refers to a device connected to a wearable device and providing certain information to a user. For example, the terminal device may be various devices such as a smartphone, a tablet, a PC, a game console, and the like. A detailed configuration of the terminal device will be described later. Hereinafter, the wearable device basically refers to a device that is attached to a body part of a user and acquires motion information of the body part. In addition, the wearable device may exchange certain information with the terminal device through short-range communication. For example, the wearable device may exchange information with a terminal device through various short-range communication such as Bluetooth (BLE) communication, RFID communication, WiFi Direct, and Universal Plug and Play (UPnP). Further, the wearable device may exchange data with the terminal device through a mobile communication network. That is, in the technology described below, the communication technique between the wearable device and the terminal device is not limited to a specific kind. For example, the wearable device is meant to include various devices such as a smart watch, a smart band, and the like. For convenience of description, it is assumed that the wearable device has a form such as a smart band. The wearable device may be located on various body parts according to the type of exercise.

1 is an example showing the configuration of the exercise posture correction system 100. 1 illustrates an example of correcting an exercise posture for a user who performs a skipping exercise. The object constituting the exercise posture correction system 100 will be briefly described.

In FIG. 1, a user wears a wearable device on both wrists and both ankles. The wearable devices 110A and 110B are located at the wrist, and the wearable devices 110C and 110D are located at the ankle. The wearable devices 110A to 110D generate data (called sensing data) for estimating a user's movement or posture at the attached position. The sensing data may include at least one of an acceleration, an angular velocity, a value sensed by the geomagnetic sensor, and a value sensed by the gyro sensor.

The wearable devices 110A to 110D include sensors for measuring an arrangement state (arranged angle) of the device in the tertiary space. Through this, the wearable devices 110A to 110D may measure an angle based on a specific point or a specific reference line. A plurality of sensors may be used to measure the angle in the tertiary space xyz. Techniques related to angular measurement can use a variety of techniques and devices known in the art.

The terminal device 120 estimates a user's posture using the sensing data transmitted from the wearable devices 110A through 110D, and monitors the user's motion or posture based on posture information about a specific exercise. It is assumed that the terminal device 120 and the wearable devices 110A to 110D are connected through a communication such as Bluetooth. In addition, it is assumed that the terminal device 120 has previously installed an application for correcting the exercise posture.

The position of wearing the wearable device 110 may vary according to the type of exercise. It is assumed that the user knows the wearing position of the wearable device 110 according to the type of exercise, the number of the wearable devices 110 according to the type of exercise, and the like. The terminal device 120 may display the wearing position of the wearable device according to the type of exercise on the screen.

FIG. 1A illustrates a system including a wearable device 110 and a terminal device 120. The terminal device 120 executes a specific application for correcting an exercise motion. The terminal device 120 may transmit a control command to periodically transmit the collected sensing data or collected sensing data to the wearable devices 110A to 110D. The wearable devices 110A to 110D periodically transmit sensing data at regular time intervals. The terminal device 120 estimates the motion posture of the user using the sensing data and determines whether the motion is suitable for the current exercise. To this end, the terminal device 120 holds information on a preferred operation for a specific exercise in advance. In this case, the information held in advance by the terminal device 120 is information indicating a preferable operation according to the type of exercise. This information is reference information for comparing whether the user's exercise motion is appropriate. This reference information is hereinafter referred to as exercise information. The terminal device 120 compares the motion estimated by the sensing data or the sensing data with the exercise information and determines whether the current user's motion is preferable. The exercise information includes a preferable sensing data value, a preferable range of sensing data values, a physical quantity represented by the sensing data (eg, acceleration), a range of physical quantities represented by the sensing data, an angle of a specific region represented by the sensing data, and the like for each of the plurality of wearable devices. It may include at least one of the angular range of the specific region indicated by the sensing data.

FIG. 1B illustrates a system including the wearable device 110, the terminal device 120, and the service server 150. Unlike FIG. 1A, the system 100 of FIG. 1B further includes a service server 150. The service server 150 provides a service for correcting exercise posture. The terminal device 120 executes an application for correcting an exercise posture and is connected to the service server 150 through a network. The terminal device 120 may receive specific exercise information from the service server 150. The wearable devices 110A to 110D transmit sensing data to the terminal device 120. The terminal device 120 may transmit a control command to periodically transmit the collected sensing data or the collected sensing data to the wearable devices 110A to 110D. The wearable devices 110A to 110D periodically transmit sensing data at regular time intervals. The terminal device 120 compares the posture or motion estimated with the sensing data or the sensing data with the exercise information to determine whether the current user's motion is preferable.

2 is an example of an operation of giving feedback to a user. Here, the feedback is information that the terminal device 120 informs the user about the current posture or motion after analyzing the posture or motion of the user. The feedback may be at least one of a signal indicating that the motion or posture of the user is incorrect and a signal indicating that the motion or posture of the user is appropriate. The exercise posture correcting system 100 includes a wearable device 110 and a terminal device 120. In FIG. 2, the wearable device 110 is fixed to a user's wrist.

The wearable device 110 transmits motion information. The delivery method may utilize broadcasting. The motion information includes the sensing data described above. Furthermore, the motion information includes identification information for identifying the wearable device 110. The motion information will be described later.

2A illustrates an example in which the terminal device 120 provides feedback to a user. In FIG. 2A, the wearable device 110 obtains motion information, and the terminal device 120 analyzes the motion information and delivers constant feedback to the user. In FIG. 2A, the wearable device 110 transmits motion information to the terminal device 120. The terminal device 120 determines the posture or motion of the body part based on the motion information, and compares the current posture and the exercise information to determine whether the current user is performing the correct exercise motion. In FIG. 2A, the terminal device 120 may feed back a result of monitoring an exercise motion to a user. As will be described later, the terminal device 120 may inform the user of the monitoring result in various ways.

2B is an example of giving feedback to the wearable device 110. In FIG. 2B, the wearable device 110 obtains movement information and the wearable device 110 receives the terminal device 120 from the terminal device 120. The wearable device 110 acquires the motion information of the body part and transmits the obtained motion information to the terminal device 120 in FIG. 2 (B). The device 120 determines the motion or posture of the user based on the motion information, and compares the determined posture with the motion information to determine whether the current user is performing the correct motion. The result of monitoring the exercise motion of the user (feedback signal) is transmitted to the wearable device 110. The wearable device 110 outputs a constant feedback alarm according to the feedback signal.

3 illustrates an example of a wearable device and a terminal device.

The wearable device 110 is a component for obtaining motion information of a user's body part. The motion sensor 111 is a sensor device that acquires motion information of a body part. The motion sensor 111 may use various sensor devices for collecting motion information. In addition, the motion sensor 111 may be configured to include a plurality of sensor devices. For example, the sensor device may include at least one of sensor devices such as an acceleration sensor, an angular velocity sensor, a geomagnetic sensor, and the like. In general, both an acceleration sensor and an angular velocity sensor may be used to accurately position or angle an object in three-dimensional space. In the technology described below, the motion sensor 111 is not limited to the type of sensor device used. The motion sensor 111 may use any sensor device as long as it can measure the position or speed at which the wearable device 110 moves from the reference point in the three-dimensional space. For example, a 9-axis sensor or the like used in recent flight drones may be used.

On the other hand, although not shown in FIG. 3, the motion information (position to angle) collected by the motion sensor 111 is generally uniformly corrected through a filter. The motion sensor 111 may correct the angle, or a separate AP may correct the angle.

The communication module 112 transmits the motion information of the body part collected by the motion sensor 111 to the terminal device 120. The communication module 112 may use a module that supports a corresponding communication scheme according to a communication technique to be used. For example, if BLE communication is used, the communication module 112 uses the BLE module. In addition, an integrated chipset supporting various communication methods may be used. In general, communication module 112 includes an antenna and a control chipset that controls communication.

The power supply 113 is a device for supplying power to the wearable device 110. The power supply 113 may supply power to the motion sensor 111 and the communication module 112. The wearable device 110 generally includes a battery. Therefore, the power supply 113 includes a battery, a connector and a circuit connected to the battery, and the like.

The terminal device 120 analyzes the motion information transmitted from the wearable device 110, calculates an angle of the body part, and determines whether the exercise motion is appropriate according to the type of exercise. Furthermore, the terminal device 120 may provide the user with certain information or an alarm according to the exercise motion monitoring result.

The terminal device 120 needs data about the angle of the specific body part or the change of the angle of the body part (the above-described exercise data) with respect to the type of exercise in advance. For example, when a dumbbell curl exercise is performed, the terminal device 120 needs to know information about the change of the upper arm angle depending on the type of the exercise motion at the start of the exercise motion. Furthermore, criteria such as the change time from the start angle to the end angle may be needed. The terminal device 120 needs to store information about an angle or a change of angle of a specific body part in advance according to various kinds of exercises. The storage medium 123 stores motion information corresponding to the at least one fitness exercise type. The motion information may include an appropriate angle range according to the type of fitness exercise. The appropriate angle range is hereinafter referred to as the reference angle range.

In addition, the terminal device 120 also needs to obtain the user's body information in advance. The terminal device 120 may constantly correct the motion or posture of the user determined according to the characteristics of the body part. The storage medium 123 stores movement information, exercise information, and the like.

The terminal device 120 may receive movement information and / or exercise information through the communication module 124 and store the movement information in the storage medium 123. In addition, although not shown in FIG. 2, exercise information may be input from a user through a separate interface device (keyboard, touch panel, etc.).

The communication module 124 receives movement information transmitted through the communication module 112 of the wearable device. The application processor AP 121 is a control device for controlling the operation of the terminal device 120. The AP 121 may be a form in which various chipsets are integrated. Accordingly, the AP 121 may be in the form of including a sensor device and a communication module in addition to a processor for processing an operation. For example, in FIG. 3, the AP 121, the communication module 124, and the memory 122 are separately illustrated, but the corresponding components may be physically in the form of one chipset. The memory 122 is a component that temporarily stores data used by the AP 121 in a calculation process, such as a RAM.

The AP 121 estimates a user's motion or posture using the motion information received by the communication module 124. In addition, the AP 121 determines whether the user posture is correct by using the exercise information stored in the storage medium 123.

The terminal device 120 may output a constant alarm message or the like when the user performs the correct exercise operation and / or when the user performs the incorrect exercise operation. For example, if the user performs the correct exercise operation, the terminal device 120 may inform the user that the correct exercise operation has been performed through vibration, sound, light emission, or an image.

On the contrary, if the user performs an incorrect exercise operation, the terminal device 120 may inform the user that the incorrect exercise operation is performed through vibration, sound, light emission, or an image. Furthermore, the terminal device 120 may give an instruction for correct operation to the user through sound or / and image.

The display device 125 may output a tutorial image about an exercise motion. In this case, the storage medium 123 stores a tutorial image for reproduction. Furthermore, the display device 125 may output image information indicating that a correct motion or an incorrect motion is performed according to the user's exercise motion monitoring result. The display apparatus 125 may output an instruction image for correct operation to the user.

Vibration motor 126 is a configuration that gives a constant feedback to the user by vibration, speaker 127 is a configuration that gives a constant feedback to the user with sound (sound), LED 128 gives a constant feedback to the user through light emission Corresponds to the configuration. For example, if the speaker 127 performs an incorrect operation according to the user's exercise motion monitoring result, the speaker 127 may inform the user of what action to perform later. Meanwhile, the feedback information delivered to the user should be stored in the storage medium 123 in advance.

The power supply device 129 is a device for supplying power to a configuration requiring power among the configuration of the terminal device 120.

4 is another example illustrating the configuration of a wearable device and a terminal device. 4 illustrates an example in which the wearable device 110 collects motion information of a body part and also outputs feedback information according to a result of the motion analysis. In the configuration of FIG. 4, the same configuration as that described in FIG. 3 is omitted or simply referred to.

The terminal device 120 analyzes the motion information transmitted from the wearable device 110, estimates the user's posture, and determines whether the user's posture corresponds to the exercise motion according to the type of fitness exercise.

 The terminal device 120 may receive movement information and / or exercise information through the communication module 124 and store the movement information in the storage medium 123. In addition, although not shown in FIG. 3, exercise information may be received from a user through a separate interface device (keyboard, touch panel, etc.).

The communication module 124 receives movement information transmitted through the communication module 112 of the wearable device. The application processor AP 121 is a control device for controlling the operation of the terminal device 120. The AP 121 estimates a posture of a corresponding body part using the motion information received for each communication module 124 and the motion information stored in the storage medium 123.

The terminal device 120 transmits the exercise motion monitoring result (feedback signal) to the wearable device 110 through the communication module 124.

In the wearable device 110, the motion sensor 111 is a sensor device that acquires motion information of a body part. The communication module 112 transmits the motion information of the body part collected by the motion sensor 111 to the terminal device 120. In addition, the communication module 112 may receive a feedback signal transmitted from the terminal device 120. The power supply device 113 is a component that supplies power to a component that requires power among the components of the wearable device 110.

The AP 114 in the wearable device 110 is a component for controlling the configuration of the wearable device 110. The memory 115 temporarily stores data necessary for an operation or control process of the AP 114.

The wearable device 110 may output a constant alarm message or the like when the user performs a correct exercise operation and / or when the user performs an incorrect exercise operation. For example, when the user performs the correct exercise operation, the wearable device 110 may inform the user that the correct exercise operation has been performed through vibration, sound, light emission, or an image.

On the contrary, if the user performs an incorrect exercise operation, the wearable device 110 may notify the user that the incorrect exercise operation is performed through vibration, sound, light emission, or an image. Furthermore, the wearable device 110 may give an instruction for correct operation to the user through sound or / and image.

The display apparatus 119 may output a tutorial image about an exercise motion. The display device 119 may output image information indicating that a correct motion or an incorrect motion is performed according to the monitoring result of the exercise motion of the user. The display device 119 may output an instruction image for correct operation to the user. The image output by the display apparatus 119 is stored in a separate storage medium (not shown) or the memory 115. In this case, the memory 115 may be a nonvolatile memory.

Vibration motor 116 is a configuration that gives a constant feedback to the user by vibration, speaker 117 is a configuration that gives a constant feedback to the user with sound (sound), LED 118 gives a constant feedback to the user through light emission Corresponds to the configuration. For example, if the speaker 117 performs an incorrect operation according to the user's exercise motion monitoring result, the speaker 117 may inform the user of what action to perform later. Meanwhile, the feedback information delivered to the user should be stored in a separate storage medium (not shown) or the memory 115 in advance.

The wearable device may transmit motion information through BLE communication (since Bluetooth 4.0). The wearable device may transmit motion information in an advertise mode of BLE. Advertisement mode is a message transmission scheme according to a broadcasting method. Therefore, the wearable device sends the motion information to all nearby devices without specifying the specific device in the BLE advertising mode. In general, a wearable device periodically broadcasts motion information.

5 illustrates an example of a structure of a packet transmitted by a wearable device. 5 is an advertising packet. The advertising packet is a packet used for the beacon service. In 2013, Apple introduced iBeacon. The specification of the advertising packet broadcast in the iBeacon specification is briefly described. The total size of the advertising packet of iBeacon is 47 bytes. The data field of the protocol data unit (PDU) is 31 bytes in total. iBeacon prefix is 9 bytes. Proximity UUID is 16 bytes. Proximity UUIDs generally represent the unique ID of the product, and may be configured with its own UUID, depending on the service. The major and minor fields are 2 bytes each and can be set from 0 to 65535. Tx Power represents the RSSI value at which the beacon is measured at 1m.

The wearable device transmits motion information by using a proximity UUID field, a major field, and a minor field of the advertising packet. The motion information includes sensing data measured by the wearable device and an identifier of the wearable device as described above. The wearable device may transmit motion information using at least two of a proximity UUID field, a major field, and a minor field. Any two of the proximity UUID field, major field and minor field may be used to transmit the sensing data and the identifier of the wearable device, respectively. The major field and the minor field are 2 bytes, and the proximity UUID field is 16 bytes. Therefore, it is desirable to deliver more capacity data using the proximity UUID field. For convenience of explanation, it is assumed that the proximity UUID field includes a sensing data value, and at least one of the major field and the minor field includes an identifier of the wearable device. Of course, as described above, a specific field does not necessarily need to include a specific kind of data.

6 is an example of measuring the exercise posture in the exercise posture correcting system. FIG. 6 illustrates a case in which a posture of a user who performs a rope skipping exercise is monitored and information for correcting the posture is generated. The user wears the wearable device A and the wearable device B on the wrist part, and wears the wearable device C and the wearable device D on the ankle part. In FIG. 6, packets transmitted by each of the wearable devices A, B, C, and D are distinguished and represented as packet A, packet B, packet C, and packet D. FIG. 6 illustrates an example in which a proximity UUID field includes sensing data and a major field and a minor field include an identifier of a wearable device.

6 is an example of data transmitted by each packet using a field of an advertising packet. The packet A includes a sensing data value A in the proximity UUID, and an identifier for the wearable device A in the major and minor fields. The packet B includes a sensing data value B in the proximity UUID and an identifier for the wearable device B in the major field and the minor field. 6 illustrates a case in which the wearable device A and the wearable device B located on the wrist belong to the same group. This is an example in which a major field includes an identifier for a group. Packet A and Packet B have the same major field value as '1001'. The minor field contains an identifier for an individual wearable device. Therefore, the values of the minor fields in FIG. 6D are different.

The packet C includes a sensing data value C in the proximity UUID and an identifier for the wearable device C in the major and minor fields. The packet D includes a sensing data value in a proximity UUID and an identifier for the wearable device D in the major and minor fields. 6 illustrates a case in which the wearable device C and the wearable device D positioned at the ankle belong to the same group. This is an example in which a major field includes an identifier for a group. Packet C and packet D have the same major field value '2001'. The minor field contains an identifier for an individual wearable device. In FIG. 6, the minor field values are different from each other.

The criteria for monitoring the movement of a skipping rope movement may vary. For example, the terminal device may give a feedback (an abnormal operation) to the user when the acceleration difference between the two hands is equal to or greater than the reference value or when the acceleration difference between both hands is equal to or greater than the reference value. Feedback can vary. When the acceleration of both hands or both feet is greater than or equal to the reference value, the terminal device may output a message indicating that the speed difference is voiced using a text to speech (TTS) technique. In addition, the terminal device may monitor the user's motion during the exercise time and output the information over time in the form of a graph.

Furthermore, the terminal device may display the strength of the skipping rope movement. The terminal device may divide the acceleration section into a plurality and display which section an acceleration value according to the current user's exercise is included in.

7 is another example of measuring the exercise posture in the exercise posture correcting system. FIG. 7 illustrates a case in which a posture of a user who performs a squat exercise is monitored and information for correcting the posture is generated. The user wears the wearable device E and the wearable device F positioned at the thigh region. In FIG. 7, packets transmitted by each of the wearable devices E and F are distinguished and represented as packet E and packet F. FIG. 7 illustrates an example in which a proximity UUID field includes sensing data and a major field and a minor field include an identifier of a wearable device.

The table at the bottom of FIG. 7 is an example of data transmitted by each packet using a field of an advertising packet. The packet E includes a sensing data value E in the proximity UUID and an identifier for the wearable device E in the major and minor fields. The packet F includes a sensing data value F in the proximity UUID and an identifier for the wearable device F in the major and minor fields. In Packet F and Packet F, the major fields contain the same value. This is to identify that the wearable device E and the wearable device F are used by the same user. If there is no other user, in some cases, packet E and packet F do not use the major field, but may identify the device by the minor field alone.

Criteria for monitoring the motion of the squat movement may vary. In general, squat exercise is assessed in the preferred position when the thighs and the floor are horizontal. Of course, you may be able to evaluate your preferred position based on a position other than the thigh. Suppose you evaluate motion based on thighs (thigh length direction) and ground.

The terminal device may estimate an angle (relative angle with the ground) of the thigh area based on sensing data of the wearable device worn on the thigh. If the angle between the thigh and the ground differs from the reference value by more than the reference value, the terminal device may give a feedback to the user. As described above, the feedback scheme may vary.

The terminal device monitors the motion by using sensing data (one placement angle based on a specific direction or a specific surface in the wearable device) transmitted by the wearable device worn on both thighs. The terminal device may give feedback that a posture of a specific thigh is incorrect based on sensing data transmitted from a wearable device worn on one thigh.

8 is another example of measuring an exercise posture in an exercise posture correcting system. FIG. 8 illustrates a case in which a posture of a user who performs a lunge exercise is monitored and information for correcting the posture is generated. The user wears the wearable device G and the wearable device H positioned at the thigh region. 8 distinguishes the packets transmitted by the wearable devices G and H, respectively, and is indicated by the packet G and the packet H. 8 illustrates an example in which a proximity UUID field includes sensing data and a major field and a minor field include an identifier of a wearable device.

8 is an example of data transmitted by each packet using a field of an advertising packet. The packet G includes a sensing data value G in the proximity UUID and an identifier for the wearable device G in the major field and the minor field. The packet H includes a sensing data value H in the proximity UUID and an identifier for the wearable device H in the major and minor fields. The major fields in Packet G and Packet H contain the same value. This is to discover that the wearable device G and the wearable device H are used by the same user. If there are no other users, in some cases, packet G and packet H do not use major fields, but may identify devices by only minor fields.

Criteria for monitoring the operation of the lunge exercise may vary. In general, lunge exercise is assessed as a desirable posture when one thigh and the floor are horizontal. The lunge motion is also evaluated as the preferred position when the other thigh and the floor are perpendicular. Of course, you may be able to evaluate your preferred position based on a position other than the thigh. Suppose you evaluate motion based on thighs (thigh length direction) and ground.

The terminal device may estimate an angle (relative angle with the ground) of the thigh area based on sensing data of the wearable device worn on the thigh. If the angle between the thigh and the ground differs from the reference value by more than the reference value, the terminal device may give a feedback to the user. As described above, the feedback scheme may vary.

The terminal device monitors the motion by using sensing data (one placement angle based on a specific direction or a specific surface in the wearable device) transmitted by the wearable device worn on both thighs. The terminal device can give feedback that the lunge posture is incorrect based on the sensing data transmitted from the wearable device G worn on the right thigh. The terminal device may give feedback that the posture of the right leg is incorrect if the right thigh length is different from the ground direction by an angle greater than the reference value. In addition, the terminal device may give feedback that the lunge posture is incorrect based on the sensing data transmitted from the wearable device H worn on the left thigh. The terminal device may give feedback that the posture of the left leg is incorrect when the length of the left thigh is different from the angle of the reference value by a right angle with the direction of the ground.

9 illustrates an example in which multiple users use the exercise posture correction system. FIG. 9 illustrates a case in which a posture of a user who performs a lunge exercise is monitored and information for correcting the posture is generated.

9 illustrates an example in which two users perform lunge exercise using the same terminal device. Unlike FIG. 9, the user 1 and the user 2 may correct the exercise posture by using different terminal devices. The user 1 wears a wearable device G and a wearable device H positioned at the thigh region. User 2 wears a wearable device I and a wearable device J located in the thigh region.

In FIG. 9, packets transmitted by each of the wearable devices G, H, I, and J are distinguished and represented as packet G, packet H, packet I, and packet J. FIG. 9 is an example in which a proximity UUID field includes sensing data, and a major field and a minor field include an identifier of a wearable device.

The table at the top of FIG. 9 is an example of data transmitted by the packet G and the packet H using the fields of the advertising packet. The packet G includes a sensing data value G in the proximity UUID and an identifier for the wearable device G in the major field and the minor field. The packet H includes a sensing data value H in the proximity UUID and an identifier for the wearable device H in the major and minor fields. The major fields in Packet G and Packet H contain the same value. This is to identify that the wearable device G and the wearable device H are used by the same user. The major field '1001' indicates a set of wearable devices used by the user 1. The minor field identifies each wearable device. For example, the minor field identifies the wearable device G worn on the right thigh and the wearable device H worn on the left thigh.

9 is an example of data transmitted by the packet I and the packet J using the fields of the advertising packet. The packet I includes a sensing data value I in the proximity UUID and an identifier for the wearable device I in the major and minor fields. The packet J includes a sensing data value J in the proximity UUID and an identifier for the wearable device J in the major and minor fields. The major fields in Packet I and Packet J contain the same value. This is to identify that the wearable device G and the wearable device H are used by the same user. The major field '2001' indicates a set of wearable devices used by the user 1.

In FIG. 9, the terminal device may monitor the operation for each of the user 1 and the user 2, and give feedback to the corresponding user when the lunge operation is incorrect. Further, the terminal device may output information for evaluating who performed better exercise while monitoring the operations of the user 1 and the user 2 for a predetermined time.

The embodiments and the drawings attached to this specification are merely to clearly show a part of the technical idea included in the above-described technology, and those skilled in the art can easily make it within the scope of the technical idea included in the description and the drawings of the above-described technology. It will be apparent that both the inferred modifications and the specific embodiments are included in the scope of the above-described technology.

100: exercise posture correction system
110A, 110B, 110C, 100D: Wearable Devices
110: wearable device
111: motion sensor
112: communication module
113: power supply
114: AP
115: memory
116: vibration motor
117: Speaker
118: LED
119 display device
120: terminal device
121: AP
122: memory
123: storage medium
124: communication module
125: display device
126: vibration motor
127: Speaker
128: LED
129 power unit
150: service server

Claims (12)

Obtaining, by the terminal device, motion information about a specific exercise motion;
Receiving, by the terminal device, motion information from a plurality of wearable devices located at a plurality of different body parts;
Calculating, by the terminal device, a difference in acceleration and an angle with a reference point for each of the plurality of body parts using the motion information; And
And determining, by the terminal device, an exercise posture of the user by comparing the motion information with respect to the acceleration difference and angle for each of the plurality of body parts.
The motion information includes an identifier of the wearable device and sensing data measured by the wearable device, and the motion information is transmitted through an advertising packet of BLE (Bluetooth Low Energy) communication.
The sensing data is included in a proximity UUID field of the advertising packet,
The identifier of the wearable device is included in any one of a major field and a minor field of the advertising packet.
The identifier for the group to which the wearable device belongs includes a plurality of wearable devices included in one of the major and minor fields of the advertising packet that does not include the identifier of the wearable device. Exercise posture correction method. delete delete delete delete delete A plurality of wearable devices positioned at a reference position among a plurality of different body parts and obtaining motion information of the reference position; And
Using the motion information received from the wearable device through short-range wireless communication to calculate a difference in acceleration and an angle with a reference point for each of the plurality of body parts,
It includes a terminal device for determining the exercise posture of the user by comparing the motion information with respect to a specific exercise motion previously held on the basis of the acceleration difference and angle for each of the plurality of body parts,
The motion information includes an identifier of the wearable device and sensing data measured by the wearable device, and the motion information is transmitted through an advertising packet of BLE (Bluetooth Low Energy) communication.
The sensing data is included in a proximity UUID field of the advertising packet,
The identifier of the wearable device is included in any one of a major field and a minor field of the advertising packet.
The identifier for the group to which the wearable device belongs includes a plurality of wearable devices included in one of the major and minor fields of the advertising packet that does not include the identifier of the wearable device. Athletic posture correction system. delete delete delete delete delete

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