WO2019240410A1

WO2019240410A1 - Swimming technique coaching service management server and system therefor

Info

Publication number: WO2019240410A1
Application number: PCT/KR2019/006531
Authority: WO
Inventors: 박준원
Original assignee: 올어스 주식회사
Priority date: 2018-06-12
Filing date: 2019-05-30
Publication date: 2019-12-19
Also published as: KR101954083B1

Abstract

The present invention relates to a swimming technique coaching service management server and a system therefor, and a swimming technique coaching service management server according to one embodiment of the present invention comprises: a swimming image acquisition unit for acquiring swimming image of a user; a motion information extraction unit for extracting motion information of the user by identifying, from the swimming image, a swim cap worn by the user or a longitudinal reference line pattern formed on a swim suit; and a coaching information generation unit for generating coaching information on the swimming technique of the user by using the motion information. Therefore, the swimming technique is analyzed from the swimming image of the user such that coaching information is automatically generated.

Description

Swimming attitude coaching service management server and system

The present invention relates to a swimming attitude coaching service management server and a system thereof, and more particularly, a technology for coaching a posture of a user by analyzing a swimming image.

Swimming is swimming in the water using hands and feet or sports using such techniques. Since ancient times, health and education have emerged since modern times, and have developed into leisure activities and sports. Swimming strokes are largely free spirit, breaststroke, backstroke and butterfly. However, these strokes are individually coached to learn and master their posture. In particular, athletes who participate in the competition are coached by professional coaches to improve their posture by correcting their posture. However, there are limitations in the case of private swimming coaches, which are expensive and simply depend on the coach's expertise.

Republic of Korea Patent Publication No. 10-1750705 (July 11, 2017) of the prior art relates to a device for measuring the state of underwater exercise and its measuring method, communication with a smart terminal, including a smart phone, tablet PC A communication module for performing; A sensor module including an ultrasonic sensor for measuring the moving distance of the human body and a three-axis acceleration sensor for measuring the amount of underwater movement; And receiving the data measured by the ultrasonic sensor and the 3-axis acceleration sensor from the sensor unit, analyzing the underwater movement state information of the user including the underwater moving distance, dynamic balance and the amount of exercise, and sending the data to the smart terminal through the communication unit. And a control module for performing an operation of transmitting. However, the conventional technique has a limitation in measuring swimming posture in that the exercise amount is simply determined through an ultrasonic sensor.

Republic of Korea Patent Publication No. 10-2010-0124640 (published November 29, 2010) of the prior art relates to a swimming training apparatus using a captured image and a method of controlling the same, equipped with at least one camera for photographing the movement of the object A moving module moving along the moving direction of the object; And a control module extracting an image of the object to analyze a swimming pattern based on the captured image input from at least one camera mounted on the moving module, and controlling the moving module using the analyzed result. It is characterized by the configuration. However, the conventional technology has a limitation in using in a general swimming pool in that the moving module has a large volume and a large installation cost.

The technical problem to be solved by the present invention is to provide a swimming attitude coaching service management server and the system that can automatically generate coaching information by analyzing the swimming attitude from the user's swimming image.

In addition, it is to provide a swimming attitude coaching service management server and the system that can extract the more accurate movement information about the swimming position by extracting the reference line pattern for the swim cap, swimwear worn by the user.

In addition, to provide a swimming attitude coaching service management server and the system that can supplement the motion information on the swimming image by modifying the motion information on the swimming position using the sensor information worn by the user.

Swimming attitude coaching service management server according to an embodiment of the present invention identifies a reference line pattern in the longitudinal direction formed on the swimming cap or swimsuit worn by the user in the swimming image acquisition unit for obtaining a user's swimming image; And a motion information extraction unit for extracting the motion information of the user, and a coaching information generation unit for generating coaching information about the swimming posture of the user by using the motion information.

The apparatus may further include a sensing information obtaining unit obtaining sensing information through sensors attached to the plurality of joint points of the user, wherein the motion information extracting unit generates first motion information using the reference line pattern, and sensing The second motion information may be generated using the information, and the first motion information may be set as final motion information when the first motion information is compared with the second motion information to be within a preset error range.

The motion information extracting unit may extract motion information of the user using the course rope of the swimming pool and the reference line pattern.

The apparatus may further include a three-dimensional model generator for generating a three-dimensional model for the user by using the motion information. The coaching information generation unit may include the amount of exercise for each part of the user and location information using the three-dimensional model. Information can be generated.

On the other hand, the swimming attitude coaching service system according to another embodiment of the present invention, the photographing means for photographing the image of the user swimming in the pool, the swimming image acquisition unit for obtaining the user's swimming image, and the swimming image The motion information extracting unit extracts the motion information of the user by identifying the reference line pattern in the longitudinal direction formed in the swimming cap or swimsuit worn by the user, and coaching information about the swimming attitude of the user by using the motion information. And a coaching service management server including a coaching information generating unit to generate a coaching service management server, and a user terminal configured to transmit an image photographed by the photographing unit to a coaching service management server and receive the coaching information.

In addition, the photographing means, the main body portion formed by coupling a pair of side plates on both sides of the rail-shaped center frame, the wheel is formed on one side, the other side is rotated to one side of the pair of side plates, respectively The driving unit may include a mounting part having a length varying by rotating in combination with an auxiliary frame moving along the center frame and a bracket supporting a camera on the other side.

In addition, the driving unit, the first tooth is formed on the outer circumferential surface of the one side is pivotally coupled to the side plate, the first rotational portion is connected to the first wheel on the other side, and one side is formed with a second tooth on the outer circumferential surface A second pivoting portion which is pivotally coupled to the plate, meshes with the first teeth of the first pivoting portion, and a second wheel is connected to the other side, and is formed on the side plate to form the first pivoting portion or the second And a first fixing part coupled to a plurality of fixing grooves formed in the rotating part to adjust the rotation angles of the first rotating part and the second rotating part.

In addition, the mounting portion, the length of the rotational coupling to the side of the auxiliary frame is variable, the first mounting rod is folded to the upper side of the center frame, the length is changed by the rotational coupling to the other side of the auxiliary frame, the center frame It may include a second mounting rod is folded to the lower side.

In addition, one side may further include a handle portion which is rotated to the other side of the pair of side plates, respectively, the handle bar is formed on the other side.

In addition, the display apparatus may further include at least one display unit mounted on a support bar connected between the pair of side plates.

Accordingly, the coaching information may be automatically generated by analyzing the swimming posture from the swimming image of the user.

In addition, by extracting the reference line pattern for the user's swimming cap, swimwear can extract more precise movement information about the swimming attitude.

In addition, the motion information on the swimming image may be supplemented by modifying the motion information on the swimming posture by using the sensor information worn by the user.

1 is a block diagram of a swimming attitude coaching service system according to an embodiment of the present invention.

2 is a block diagram of a swimming attitude coaching service management server according to an embodiment of the present invention.

3 and 4 are exemplary views for explaining the extraction of the motion information from the swimming image in the swimming attitude coaching service management server according to FIG.

FIG. 5 is an exemplary diagram for describing providing a coaching information by generating a three-dimensional model in the swimming attitude coaching service management server according to FIG. 2.

6 to 8 is a detailed configuration of the photographing means of the swimming posture coaching service system according to FIG.

9 is an exemplary view for explaining a method of using a photographing means according to another embodiment of the swimming posture coaching service system according to FIG. 1.

10 is an overall configuration diagram of the photographing means according to FIG. 9.

FIG. 11 is a detailed configuration diagram of a main body part of the photographing unit according to FIG. 9.

12 is a detailed block diagram of the driving unit of the photographing unit according to FIG. 9.

13 is an exemplary view for explaining a folded state of the photographing means according to FIG. 9.

14 is an exemplary view for explaining that the sensing unit is included in the photographing means according to FIG. 9.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The terms used are terms selected in consideration of functions in the embodiments, and the meaning of the terms may vary depending on the intention or precedent of the user or operator. Therefore, the meaning of the terms used in the embodiments to be described later, according to the definition if specifically defined herein, and if there is no specific definition should be interpreted to mean generally recognized by those skilled in the art.

Referring to FIG. 1, a swimming attitude coaching service system according to an exemplary embodiment of the present invention includes a photographing means 10, a user terminal 20, and a swimming attitude coaching service management server 100.

The photographing means 10 acquires a swimming image in which the user swims underwater. In this case, the photographing means 10 may be connected with the variable length holder to adjust the position. The photographing means 10 is capable of capturing a state in which the user swims on the bottom and the side using two or more cameras, respectively. In this case, the photographing means 10 is preferably waterproof. The photographing means 10 may photograph a user's swimming state as a photo or a video. The photographing means 10 transmits the photographed image to the user terminal 20 or the swimming attitude coaching service management server 100.

In addition, the photographing means 10 may be implemented in a form in which a lane is formed on one side of the pool to move along the lane. This is to take a picture of the user's swimming in a stable posture. In addition, the photographing means 10 may be implemented in the form of an underwater drone or an aerial drone. When the photographing means 10 is formed of an underwater drone, it is possible to photograph the user's swimming while maintaining a predetermined distance from the bottom surface of the pool. When the photographing means 10 is formed as an aerial drone, the user may take a picture of the user's swimming while flying away from the surface at a predetermined height. The photographing means may be implemented by mixing a rain mobile method, an underwater drone method, an aerial drone method.

The user terminal 20 refers to a terminal capable of network communication with a terminal used by a user. The user terminal 20 may communicate with the photographing means to obtain a swimming image of the user. The user terminal 20 may communicate with the swimming attitude coaching service management server 100 to transmit a swimming image. In this case, the swimming attitude coaching service management server 100 may obtain a swimming image from the user terminal 20 or directly obtain a swimming image from the photographing means. The user terminal 20 may also receive coaching information from the swimming attitude coaching service management server 100. In this case, the user terminal 20 may access the web page of the swimming attitude coaching service management server 100 or download and install an application to access the webpage.

Swimming attitude coaching service management server 100 obtains a swimming image of the user from the photographing means 10 or the user terminal 20. Swimming attitude coaching service management server 100 analyzes the swimming attitude of the user from the swimming image and generates coaching information for it. Coaching information refers to data analyzed by a mechanical algorithm. For example, the coaching information includes information about the user's exercise analysis and posture analysis. The swimming attitude coaching service management server may provide a swimming image of a user to a coaching expert group and analyze the expert diagnostic information obtained therefrom through big data as coaching information. Hereinafter, a swimming attitude coaching service management server 100 will be described in detail with reference to FIG. 2.

2, the swimming attitude coaching service management server 100 according to an exemplary embodiment of the present invention includes a swimming image acquisition unit 110, a motion information extraction unit 120, and a coaching information generation unit 130. .

The swimming image acquisition unit 110 obtains a swimming image of the user. The swimming image acquisition unit 110 obtains at least one swimming image of the side, front, back, upper surface, lower surface of the user's progress direction obtained from the photographing means. In this case, the photographing means may photograph the user's swimming image underwater or on the ground. Swimming image acquisition unit 110 may be obtained by including a voice in the swimming image. The swimming image acquisition unit 110 may acquire an image of a course rope, a floor tile, etc. in addition to the use of swimming. The swimming image acquisition unit 110 outputs the acquired image to the motion information extraction unit 120.

The motion information extractor 120 identifies the reference line pattern in the longitudinal direction formed on the swimming cap or swimsuit worn by the user in the swimming image and extracts the user's motion information. In this case, the reference line pattern may be printed on the swimming cap or swimsuit in a '-' shaped line with a predetermined color. The reference line pattern may be displayed in the form of a double line or a dotted line. The user may wear a swim suit or wear a band printed with a reference line pattern on the arm or leg. The motion information extracting unit 120 may generate a motion information by extracting a reference line pattern from a swimming image, extracting a position, an angle, etc. of a user's arm, leg, head, and body. The motion information is used to encompass swimming posture, speed, etc. for each user's body part.

In addition, the motion information extractor 120 may extract the motion information of the user using the course rope of the swimming pool and the reference line pattern. The motion information extractor 120 may extract a user's swimming position by using a reference line pattern formed on the course rope and the swimming cap or the swimsuit included in the swimming image. The motion information extractor 120 firstly extracts the angle of the user's arm, the angle of the leg, the head angle, the body level using the reference line pattern, and the user's swimming based on the course rope. The posture will be extracted. This is to compensate for the difficulty of setting the sleep standard due to the wave in the swimming image. Therefore, the user's motion information can be extracted more accurately by analyzing the angle of the reference line pattern with the coslope as the reference plane.

The coaching information generation unit 130 generates coaching information about the swimming posture of the user using the motion information. Here, the coaching information is used to encompass the user's exercise amount, swimming posture, and the like. For example, when the user freestyles, coaching information is generated such that the angle of the right arm is lower than the angle of the left arm or the legs are not balanced. In addition, the coaching information includes the user's physical exercise amount. For example, the amount of exercise information about swimming time, moving distance, moving speed, calorie consumption, etc. are included in coaching information. The coaching information generation unit 130 may generate coaching information for each part by a mechanical algorithm and provide the same through a terminal of a user.

In addition, the coaching information generation unit 130 may provide swimming images and motion information about the user to a plurality of expert groups, and may provide improvement points as coaching information by data mining the feedback provided from the expert group. This is to allow various experts to provide more detailed and diverse coaching information by coaching the user's swimming position. The coaching information generator 130 may provide the standard coaching information to the user in the form of an image. Standard coaching information means information including swimming images or training methods according to each stroke. The coaching information generation unit 130 may also provide a comparison image by analyzing motion information for each period. In this case, the user can check the change of swimming posture for each period.

On the other hand, the swimming attitude coaching service management server 100 according to an embodiment of the present invention may further include a sensing information acquisition unit 140. The sensing information acquisition unit 140 acquires sensing information through a sensor attached to a plurality of joint points of the user. The sensor may be attached to a swim cap, a swimsuit, a band, etc. worn by the wearer. The sensor is preferably capable of communicating with an external user terminal. When the sensor cannot communicate underwater, the sensing information acquisition unit 140 may sense a swimming position of the user by detecting a sensor attached to a portion exposed to the water surface.

In this case, the motion information extractor 120 may generate first motion information using a reference line pattern, and generate second motion information using sensing information. The motion information extractor 120 compares the first motion information with the second motion information and sets the first motion information as the final motion information when it is within a preset error range. When the first motion information and the second motion information are outside the preset error range, the second motion information may be set as the final motion information. This is to compensate for the limitation of image analysis, and it is possible to obtain more accurate motion information by comparing swimming images with sensing information.

On the other hand, swimming attitude coaching service management server 100 according to an embodiment of the present invention may further include a three-dimensional model generation unit 150. The three-dimensional model generator 150 generates a three-dimensional model for the user using the motion information. The three-dimensional model refers to information generated as a 3D image based on the user's body information. The three-dimensional model generator 150 may embody the three-dimensional model by using the reference line pattern or the sensing information. The stereoscopic model generation unit 150 may image the user with computer graphics and output the same to the user terminal.

In this case, the coaching information generation unit 130 may generate coaching information including an exercise amount and location information of each part of the user using a stereoscopic model. Coaching information may be provided by implementing a user's actual swimming pattern using a three-dimensional model. This is to compensate for the fact that it is difficult to accurately determine the swimming posture by the bubble, etc., the actual swimming image can be confirmed only from a certain angle image. Accordingly, the user can realistically check his swimming position based on the three-dimensional model in which he is shaped.

On the other hand, swimming attitude coaching service management server 100 according to an embodiment of the present invention may further include a compensation unit 160. The compensation unit 160 may calculate a score of the swimming posture or the exercise amount of the user, and compare the score with a plurality of other users and provide a reward such as a point or a coupon according to the ranking. The compensation unit 160 may allow the user to provide additional points or coupons when the swimming posture or exercise amount is improved. In this case, points or coupons are credited to the account of the user terminal. In this case, the user may use the point or coupon provided through the compensation unit 160 to receive additional coaching information. In addition, the points or coupons provided through the compensation unit 160 may be used as a cost of purchasing or renting swimming pool fees such as swimming caps and swimwear.

On the other hand, swimming attitude coaching service management server 100 according to an embodiment of the present invention may further include a matching unit 170. The matching unit 170 may match a coach learning group to which a user learning to swim and a plurality of swimming coaches belong. For example, the matching unit 170 may provide a swimming image of the user's swimming posture to the coaching group, and may match coaching experts capable of coaching. Coaching professionals in the coaching group can be set up to be pressurized by providing a certificate to prove they are swimming coaching specialists. Coaching experts can be provided with the cost of providing coaching information by frequency and period. The matching unit 170 may provide coaching information of a matched coaching expert in addition to coaching information by a mechanical algorithm provided by the swimming attitude coaching service management server 100.

3 and 4, the user's image and a reference line pattern 310 printed on a swim cap, a swimsuit or a band worn by the user are extracted from the swimming image 300. In this case, the reference line pattern 310 is preferably formed in a straight line along the user's body joint, but is not necessarily limited thereto. The reference line pattern 310 may be formed over an entire body such as an arm, a leg, a head, a torso, or may be formed only on a part of the arm, a leg, or the like. When the reference line pattern 310 is extracted from the swimming image 300, an extension line 311 may be generated to calculate the angle of the arm, the angle of the leg, the angle of the head, and the like.

In addition, separate from the swimming image 300, when the user wears the sensor 330 in each of the contact portion, it is also possible to extract the motion information by connecting each sensor 330 with a line. In this case, when the sensing information is not received from the sensor 330 submerged in water, the user's motion information may be extracted using only the sensing information partially on the arm, leg, head, etc. exposed to the surface of the water. Accordingly, in addition to the reference line pattern 310 for the swimming image 300, the important posture information may be grasped using the sensing information.

In addition, the swimming image 300 may calculate an angle of an arm or a leg by extracting an image of the course rope 320 and comparing the reference line pattern 310 with the reference line. In addition, it is also possible to calculate the moving distance of the user by using the color pattern formed on the course rope 320. The course rope 320 pattern may be used to set not only the swimming image 300 for the side of the user but also the standard for the swimming image 300 in the front. In the case of the front swimming image 300, the slope of the reference line pattern 310 may be determined based on a line connecting the two course ropes 320.

Referring to FIG. 5, coaching information 520 provided to a user terminal from a swimming attitude coaching service management server is illustrated. The coaching information 520 is generated and provided with a three-dimensional model 500 for the user. In addition, it is also possible to directly check the swimming image of the user. The coaching information 520 includes information on the amount of exercise, changes in body parts, and the like. For example, information about the distribution of power, balance, etc. of the left and right arms is physically expressed as momentum. In addition, the coaching information 520 may provide an improvement necessary to the user by a mechanical algorithm based on the exercise amount information 510. For example, if the strength of the left leg falls, it is possible to propose a method of exercise necessary for improving muscle strength. In addition, in the case of a wide open position, the user can easily recognize and correct his swimming posture by reproducing and displaying the position of the arm on the three-dimensional model.

6 to 8, the photographing means 10 includes a support rod 11, a camera 12, and a moving unit 13. Support rod 11 may be formed in a way that the length is variable. One end of the support rod 11 is moved while submerged in water. To this end, the cross section of the support rod 11 may be formed in a streamlined or oval shape. Preferably, the support rod 11 is preferably formed in the shape of an air foil (air foil). A rotating cover 11-1 may be formed on the outer circumferential surface of the support bar 11. The cover 11-1 is rotated along the outer circumferential surface of the support bar 11 in a streamlined or airfoil shape. As shown in FIG. 8, in the case of (a), when the moving direction of the supporting rod 11 is reversed, the cover 11-1 rotates around the supporting rod 11 as shown in (b). Accordingly, even when the user uses the photographing means in the water, the image may be generated by minimizing resistance while minimizing resistance.

At least one camera 12 is installed at one side of the support bar (11). The other end of the support bar 11 is formed with a handle, it is also possible to be formed in a mounting structure for mounting the user terminal. The camera 12 may be a stereo system, but is not limited thereto. Camera 12 is preferably formed inside the waterproof pack or package to be waterproof underwater. The camera 12 can also adjust the position along the support rod 11. The plurality of cameras 12 may capture a swimming image from the side or the front of the user. The moving part 13 is connected to the supporting rod 11 and allows the movable part 13 to move using the wheel while supporting it from the bottom surface of the swimmer. This is to stably photograph while moving the support rod 11 by using the moving unit (13).

Referring to FIG. 7, one end of the support bar 11 may have a rotating part 14 for rotating the driving shaft. The rotating unit 14 rotates the rotating shaft in an eccentric manner. In this case, the rotating unit 14 varies the angle of the camera 12 while rotating the lower portion of the bracket for fixing the camera 12. The rotating unit 14 may adjust the angle of photographing the swimming image of the user as the camera 12 rotates eccentrically. A rubber buffer portion 15 is formed inside the bracket to block water from flowing into the rotating portion 14 and to cushion shocks caused by the rotating portion 14. The buffer unit 15 may be formed in a circular ring shape. The shock absorbing portion 15 may absorb shocks even when the sudden rotation part 14 is operated to mitigate the shocks applied to the camera 12. Accordingly, it is possible to obtain a stable swimming image.

9, the photographing means 30 according to another embodiment of the present invention is a device for photographing the posture of the English swimmer in the pool. The photographing means 30 photographs the swimming posture of the Englishman while moving along the peripheral passage of the swimming tank. The photographing means 30 mounts and supports the camera 12 in the water and the water, respectively. The photographing means 30 can be moved while being pushed manually or by electric movement. When the photographing means 30 is in use, the cradle 33 is unfolded, and in storage, the cradle 33 can be folded and stored. Hereinafter, the photographing means 30 will be described in detail with reference to FIGS. 10 to 14.

FIG. 10 is an overall configuration diagram of the photographing means according to FIG. 9, FIG. 11 is a detailed configuration diagram of a main body part of the photographing means according to FIG. 9, FIG. 12 is a detailed configuration diagram of a driving unit among the photographing means according to FIG. 9, and FIG. 13 is an exemplary view for explaining a folded state of the photographing means according to FIG. 9.

10 to 13, the photographing means 30 according to the exemplary embodiment of the present invention includes a main body 31, a driver 32, and a holder 33.

The main body 31 is formed by coupling a pair of side plates 31-2 to both sides of the rail-shaped center frame 31-1. The center frame 31-1 is a frame in the form of a rail and an auxiliary frame 31-11 is inserted therein. The auxiliary frame 31-11 is inserted into the center frame 31-1 and slides to move. The center frame 31-1 is connected to and fixed to a pair of side plates 31-2 at both end portions thereof. The auxiliary frame 31-11 serves to support the mounting part 33. In this case, the door frame may be formed in the auxiliary frame 31-11 to move in a sliding manner from the center frame 31-1.

In addition, the pair of side plates 31-2 of the main body portion 31 are formed to face each other with the center frame 31-1 therebetween. A plurality of insertion grooves 31-21 are formed in the pair of side plates 31-2. Insertion groove (31-21) is a groove formed to facilitate the fixing in the folded state when the photographing means 30 is folded and stored. A plurality of support bars 31-3 are formed between the pair of side plates 31-2. The support bar 31-3 is formed in the horizontal direction and serves to fix the pair of side plates 31-2 in addition to the center frame 31-1.

The driving unit 32 is formed with a wheel on one side, the other side is rotatably coupled to one side of the pair of side plates 31-2, respectively. The driving unit 32 extends to the bottom of the pair of side plates 31-2 to allow movement through the wheels. The driving units 32 are formed in pairs corresponding to the pair of side plates 31-2, respectively. More specifically, the driving part 32 includes a first rotating part 32-1, a second rotating part 32-2, and a first fixing part 32-3. In the description of the present invention, only the driving unit 32 formed in any one side plate 31-2 will be described for convenience of description. In other words, the first rotating part 32-1, the second rotating part 32-2, and the first fixing part 32-3 of the driving part 32 are identical to the other side plate 31-2. It is formed into a configuration.

One side of the first pivoting portion 32-1 is formed with a first tooth 32-11 on an outer circumferential surface thereof and is rotatably coupled to the side plate 31-2. The first rotating part 32-1 rotates with the side plate 31-2 and is expanded or folded. A first tooth 32-11 is formed on an outer circumferential surface of the first pivoting part 32-1, and meshes with the second tooth 32-21 of the second pivoting part 32-2 to rotate in cooperation with each other. In this case, the size of one outer circumferential surface of the first pivoting portion 32-1 may vary depending on the user's setting. The first rotating part 32-1 and the second rotating part 32-2 rotate by cogwheeling with each other.

In addition, a plurality of fixing grooves 32-31 are formed in the first rotating part 32-1. This is the purpose for fixing by the 1st fixing part 32-3 according to the rotation angle of the 1st rotation part 32-1. The number and positions of the fixing grooves 32-31 may vary depending on the user's setting. The first rotation part 32-1 is connected to the first wheel 32-12 on the other side. It is preferable that the outer surface of the 1st wheel 32-12 is formed with a non-slip material.

One side of the second pivoting portion 32-2 is formed with second teeth 32-21 on the outer circumferential surface thereof so as to rotate with the side plate 31-2. The second pivoting portion 32-2 rotates with the side plate 31-2 and expands or folds. On the outer circumferential surface of the second pivoting portion 32-2, second teeth 32-21 are formed to rotate with each other while interlocking with the first teeth 32-11 of the first pivoting portion 32-1. In this case, the rotating direction of the first rotating part 32-1 and the rotating direction of the second rotating part 32-2 become opposite directions. For example, when the first rotating part 32-1 is unfolded while rotating in the counterclockwise direction, the second rotating part 32-2 is unfolded while rotating in the clockwise direction.

In addition, a plurality of fixing grooves 32-31 are formed in the second pivot 32-2. This is the purpose for fixing by the 1st fixing part 32-3 according to the rotation angle of the 2nd rotation part 32-2. The number and positions of the fixing grooves 32-31 may vary depending on the user's setting. The second pivot 32-2 is connected to the second wheel 32-22 at the other side. It is preferable that the outer surface of the 1st wheel 32-12 is formed with a non-slip material. The pair of first pivoting portions 32-1 and the second pivoting portions 32-2 are formed on the side plates 31-2 in the same manner.

The first fixing part 32-3 is formed in the side plate 31-2 and includes a plurality of fixing grooves 32-31 formed in the first rotating part 32-1 or the second rotating part 32-2. Fixed in combination with. In this case, if the 1st fixing part 32-3 restricts the movement of either the 1st rotation part 32-1 or the 2nd rotation part 32-2, the remainder will also be fixed. This is because the first rotating part 32-1 and the second rotating part 32-2 move in conjunction with each other by cogwheel coupling. The first fixing part 32-3 may be inserted into or detached from the fixing groove 32-31 using an elastic spring.

For example, when the first fixing part 32-3 is inserted into the fixing groove 32-31, the positions of the first rotating part 32-1 and the second rotating part 32-2 are fixed. When the first fixing part 32-3 is separated from the fixing groove 32-31, the first rotating part 32-1 and the second rotating part 32-2 may be rotated. The first fixing part 32-3 is fixed while the first rotating part 32-1 and the second rotating part 32-2 are folded, or the first rotating part 32-1 and the second rotating part 32-2 are fixed. Can be fixed while the eastern part 32-2 is extended. Accordingly, the first fixing part 32-3 adjusts the rotation angles of the first rotating part 32-1 and the second rotating part 32-2.

Mounting portion 33 is rotated by one side is coupled to the auxiliary frame (31-11) moving along the center frame (31-1) is variable in length, the other side is formed with a bracket (33-3) for supporting the camera . One or more cradles 33 may be formed in the photographing means 30. The mounting portion 33 includes a first mounting rod 33-1, a second mounting rod 33-2, a bracket 33-3, a second fixing portion 33-4, and a third fixing portion 33-. 5) is included.

The first mounting rod 33-1 and the second mounting rod 33-2 of the mounting portion 33 may be formed in a telescopic type having a variable length. This is to allow the user to stretch and use the desired length. The first mounting rod 33-1 mounts the camera in the water, and the second mounting rod 33-2 mounts the camera in the water. In this case, the first mounting rod 33-1 is stored while being folded to the upper portion of the auxiliary frame 31-11 in a state where the length is minimally folded. The second mounting rod 33-2 is stored while being folded down to the lower portion of the auxiliary frame 31-11 in a state where the length thereof is minimally folded.

Mounting portion 33 is a bracket 33-3 is formed on the other side of the first mounting rod (33-1) and the second mounting rod (33-2), respectively. The bracket 33-3 serves to fix the camera. The structure of the bracket 33-3 may be changed by a camera having various structures. The second fixing part 33-4 of the mounting part 33 is formed on the first mounting rod 33-1 and the second mounting rod 33-2 to adjust the rotation angle. The second fixing part 33-4 is connected to the rotation shafts of the first mounting rod 33-1 and the second mounting rod 33-2 to press the rotation shaft to limit the rotation. The second fixing part 33-4 fixes the first mounting rod 33-1 and the second mounting rod 33-2 in the same manner as screwing manually. In this case, the rotation angles of the first mounting rod 33-1 and the second mounting rod 33-2 may be different from each other by the user's setting.

The third fixing part 33-5 of the mounting part 33 is formed on the first mounting rod 33-1 and the second mounting rod 33-2 to adjust the length. The third fixing part 33-5 is formed on the outer surfaces of the first mounting rod 33-1 and the second mounting rod 33-2 to limit rotation while pressing. The third fixing part 33-5 fixes the withdrawal lengths of the first mounting rod 33-1 and the second mounting rod 33-2 in the same manner as screwing manually. In this case, the first mounting rod 33-1 and the second mounting rod 33-2 may be stretched by the external force, and the length adjustment is limited by the third fixing part 33-5. Accordingly, the first mounting rods 33-1 may mount the cameras on the second mounting rods 33-2, respectively, and photographing may be performed at a stable angle.

On the other hand, the photographing means 30 according to an embodiment of the present invention may further include a handle 34. Handle portion 34 is rotated to one side is coupled to the other side of the pair of side plates (31-2), respectively, the handle bar 34-1 is formed on the other side. The handle part 34 is configured to move the photographing means 30 while the user pushes it by hand. Handle portion 34 is composed of a pair, each rotated to the side plate (31-2). The handle bar 34-1 connects between the pair of handle parts 34, and a handle part 34 of rubber material may be formed on an outer surface thereof.

The handle portion 34 further includes a fourth fixing portion 34-2 on one side, and the fourth fixing portion 34-2 is configured to adjust the rotation angle of the handle portion 34. The fourth fixing part 34-2 may adjust the rotation angle of the handle part 34 while tightening or loosening the manual screwing method. The handle part 34 may move the photographing means 30 in the opposite direction by rotating the handle angle in the opposite direction when swimming while changing the direction at the end of the swimming tank. When the handle bar 34-1 is folded, the handle bar 34-1 is inserted into and fixed to the fixing grooves 32-31 of the side plate 31-2.

On the other hand, the photographing means 30 according to an embodiment of the present invention may further include a display unit 35. The display unit 35 is fixed to the support bar 31-3 by a kind of display. The display unit 35 may check an image acquired from the camera through a cable. The display unit 35 may be implemented in two or more so as to check the images obtained from the plurality of cameras. The display unit 35 may be used by drawing out a cable by a cable reel 35-1 formed on one side of the side plate 31-2. In this case, one terminal of the cable reel 35-1 is connected to the display unit 35, and the other terminal is connected to the camera.

As shown in FIG. 12, the photographing means 30 according to the exemplary embodiment of the present invention is accommodated inside the main body 31 while the driving unit 32 is folded, the mounting unit 33 is folded, and a handle. The part 34 is folded to the side of the head part. Accordingly, by minimizing the total volume, it is easy to carry and easy to store.

Referring to FIG. 14, the photographing means 30 according to the embodiment of the present invention may further include a sensing unit 36.

The sensing unit 36 is formed at one side of the driving unit 32 to identify the reference line 40 formed at the bottom of the swimming passage of the swimming tank. For example, the sensing unit 36 may be formed with at least one of the first wheels 32-12 or the second wheels 32-22 of the driving unit 32. The detector 36 detects the reference line 40 using the vision function to detect whether the photographing means 30 maintains a constant direction. For example, by comparing the first sensing image of the sensing unit 36 formed on the first wheel 32-12 side with the second sensing image of the sensing unit 36 formed on the second wheel 32-22 side, Detect whether or not the reference line 40 is out. The sensing unit 36 outputs an alarm signal through a speaker or the like when the photographing means 30 leaves the reference line 40 beyond the allowable value. This is to prevent the user from moving in the swimming pool while moving along the narrow swimming passage. Accordingly, the user can obtain a swimming image while moving the photographing means 30 more safely.

Accordingly, it is easy to carry and easy to store by minimizing the total volume by folding. In addition, it is possible to increase the ease of use by adjusting the length and angle of the mounting rod to be positioned in the water and the camera, respectively. In addition, it is possible to accurately drive without installing a separate lane in the swimming passage of the pool.

The present invention has been described above with reference to the preferred embodiments described with reference to the drawings, but is not limited thereto. Accordingly, the invention should be construed by the description of the claims, which are intended to cover obvious variations that can be derived from the described embodiments.

Claims

A swimming image acquisition unit for obtaining a swimming image of a user;

A motion information extracting unit extracting motion information of the user by identifying a reference line pattern in a longitudinal direction formed in the swimming cap or swimsuit worn by the user in the swimming image; And

Swimming attitude coaching service management server comprising a coaching information generation unit for generating coaching information for the user's swimming attitude using the motion information.
The method of claim 1,

Further comprising a sensing information acquisition unit for obtaining sensing information through a sensor attached to the plurality of joint points of the user,

The motion information extractor,

When the first motion information is generated using the reference line pattern, the second motion information is generated using the sensing information, and the first motion information is compared with the second motion information to be within a preset error range. Swimming attitude coaching service management server for setting the first motion information as the final motion information.
The method of claim 1,

The motion information extractor,

Swimming attitude coaching service management server for extracting the movement information of the user using the course rope and the reference line pattern of the pool.
The method according to any one of claims 1 to 3,

Further comprising a three-dimensional model generator for generating a three-dimensional model for the user using the motion information,

The coaching information generation unit,

Swimming attitude coaching service management server for generating the coaching information including the exercise amount, location information for each part of the user using the three-dimensional model.
Photographing means for photographing an image of a user swimming in the pool;

A swimming image acquisition unit for acquiring a swimming image of the user, a motion information extraction unit for identifying a reference line pattern in a longitudinal direction formed in the swimming cap or swimsuit worn by the user from the swimming image and extracting the motion information of the user; A coaching service management server including coaching information generation unit configured to generate coaching information about the swimming posture of the user using the motion information; And

Swimming attitude coaching service system comprising a user terminal for transmitting the image taken from the photographing means to a coaching service management server and receives the coaching information.