KR102381126B1 - method and measurement system for measuring index related to user's athletic ability using sensor - Google Patents

Abstract

According to the present invention, disclosed is an exercise capacity measurement system. In addition, an embodiment of the present invention proposes a method and a measurement system for measuring an indicator related to a user's athletic ability using a sensor. Also, according to the present invention, when at least a part of the at least one exercise constitutes an individual competition between a plurality of users, a management unit reflects the indicator related to a user's athletic ability transmitted from a measurement unit to an individual competition record of the user. Content includes the individual competition record, and the individual competition record includes a result of scoring an indicator related to the user's athletic ability, a result of deriving a ranking of the scoring result compared to other users participating in an individual competition, and a video obtained by recording the entire progress of an individual match.

Description

A method and measurement system for measuring an index related to a user's athletic ability using a sensor {method and measurement system for measuring index related to user's athletic ability using sensor}

The present invention relates to a system for measuring exercise capacity, and more particularly, to a system for measuring an index related to a user's exercise ability and transmitting information related to exercise ability to the user according to a user's request.

The present invention also relates to a method and a measurement system for measuring an index related to a user's exercise ability using a sensor.

With the development of technology, the trend of the sports industry is also changing. By grafting technologies such as 5G, augmented reality (AR), virtual reality (VR), and big data, which are core technologies in the 4th industrial revolution era, sports activities are supported and virtual sports environment The development of the sports industry is taking place in various areas, such as experiencing sports and measuring and quantifying the results of sports activities.

For example, big data is being actively used to improve the skills and performance of players. It measures and analyzes athlete status such as exercise intensity, postural efficiency, joint angle, rotation rate, speed, and heart rate, applies it to training, and predicts match results and is used to establish strategies. In the case of stocks that are highly affected by weather and environment, such as temperature, the scope of the use of big data is increasing significantly.

However, in contrast to professional players, there is still a lack of development of a platform for measuring athletic ability-related indicators for the general public and delivering information related to athletic ability to users. In particular, there is a need for a platform that measures the indicators related to the exercise ability of infants and delivers information related to the exercise ability to the user.

It is an object of the present invention to solve the above problems, to provide a system for measuring exercise capacity.

The present invention for achieving the above object provides a system for measuring exercise capacity.

The exercise ability measurement system, the identification unit for identifying the user's identifier (identifier, ID) based on the RFID (Radio-Frequency Identification) bracelet associated with the user is tagged; a measurement unit configured to measure an index related to the exercise ability of the user based on one or more exercises performed by the user; a photographing unit for photographing the user's performance process for at least a portion of the one or more exercises; and a management unit for managing information related to the user's identifier and exercise ability of the user, wherein the management unit receives the user's identifier transmitted from the recognition unit, and receives the user's exercise from the measurement unit Receive an indicator related to ability, receive an image of the execution process transmitted from the photographing unit, store an indicator related to the user's athletic ability in association with the user's identifier, and link with the user's identifier to store a photographed image of the performing process, and the measuring unit measures at least some of the indicators related to the exercise ability of the user based on the image photographed of the performing process, and measures the user's exercise ability from the user When there is a request for transmission of related information, the management unit transmits contents including an index related to the exercise ability of the user and an image photographed of the execution process to a terminal related to the user through a cloud server It is transmitted to the platform stored in

When at least a part of the one or more exercises constitutes an individual match made by competition between a plurality of users, the management unit reflects the indicator related to the exercise ability of the user transmitted from the measurement unit to the user's individual match record, , the content includes the individual match record, and the individual match record is a result of scoring an index related to the user's athletic ability, comparing it with other users participating in the individual match, and deriving the ranking of the scoring result; and an image of the entire progress of the individual exhibition.

The individual exhibition may be configured such that the user sequentially performs at least some of the one or more exercises while passing through a track.

When at least a portion of the one or more sports is an exercise constituting a team match made by competition between two or more teams, the management unit classifies a plurality of users participating in the team match into any one of the two or more teams, Determine which team the user belongs to among the two or more teams based on the received identifier, and reflect the indicator related to the user's athletic ability transmitted from the measurement unit to the team game record of the team to which the user belongs, The content includes the team game record, wherein the team game record includes a record of a team to which the user belongs, a degree of contribution of the user to a team to which the user belongs, a ranking of the team to which the user belongs among the two or more teams, and the It may include a video of the entire progress of the team event.

The recognition unit may correspond to an RFID reader device.

The measurement unit includes one or more measurement sensors, wherein the one or more measurement sensors include time spent in relation to the exercise performed by the user, whether a specific condition is satisfied in relation to the exercise performed by the user, and the satisfaction of the specific condition At least one of a probability, an exercise performance level related to the exercise performed by the user, and power generated in relation to the exercise performed by the user may be measured.

The one or more exercises may include at least one of side step, high jump, long jump, screen touch, obstacle avoidance, basketball free throw, and running.

The one or more exercises may include at least one of cycling and rowing.

When the user is an infant, the terminal related to the user may be a terminal of a guardian of the user.

By using the exercise ability measurement system according to the present invention as described above, the user can conveniently check an index related to exercise ability and an image captured by an exercise performance through the terminal. In addition, it is possible to provide an element of competition by providing results compared with other indicators.

Furthermore, when the user of the exercise ability measurement system according to the present invention is an infant, the guardian can check the exercise ability, health score, physical development trend, etc. of the user who is the child through the mobile phone terminal.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be.

Other aspects, features and benefits as set forth above of certain preferred embodiments of the invention will become more apparent from the following description taken in conjunction with the accompanying drawings.
1 is a conceptual diagram of a system for measuring exercise capacity according to an embodiment of the present invention.
2 is a conceptual diagram illustrating a method of operating a system for measuring athletic ability in an individual battle situation according to an embodiment of the present invention.
3 is a conceptual diagram illustrating a method of operating an exercise ability measurement system in a team event according to an embodiment of the present invention.
4 is a conceptual diagram illustrating a configuration of a device including a recognition unit and a measurement unit according to an embodiment of the present invention.
5 is an exemplary diagram in which contents of the system for measuring exercise ability according to an embodiment of the present invention are output to a terminal related to a user.
6 is a diagram for explaining a frequency waveform according to an embodiment of the present invention.
It should be noted that throughout the drawings, like reference numerals are used to denote the same or similar elements, features, and structures.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing each figure, like reference numerals have been used for like elements.

Terms such as first, second, A, and B may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. The term 'and/or' includes a combination of a plurality of related listed items or any of a plurality of related listed items.

When an element is referred to as being “connected” or “connected” to another element, it is understood that it may be directly connected or connected to the other element, but other elements may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram of a system for measuring exercise capacity according to an embodiment of the present invention.

Referring to FIG. 1 , the exercise ability measurement system 100 is a recognition unit 110 that identifies an identifier (ID) of a user based on a RFID (Radio-Frequency Identification) bracelet associated with the user is tagged, the user performs A measurement unit 120 for measuring an index related to a user's exercise ability based on at least one exercise to and a management unit 140 that manages the user's identifier and information related to the user's athletic ability.

For example, the at least one exercise performed by the user may include at least one of side step, high jump, long jump, screen touch, obstacle avoidance, basketball free throw, running, cycling, and rowing. At least a portion of at least one exercise performed by the user may constitute an individual competition made by competition among a plurality of users. Also, at least a portion of at least one exercise performed by the user may be an exercise constituting a team match made by competition between two or more teams.

The movements constituting an individual event and the movements constituting a team event are not necessarily exclusive. For example, cycling may be an exercise constituting an individual event and an exercise constituting a team event at the same time. Also, not all sports have to consist of either an individual event or a team event. For example, obstacle avoidance may not belong to any one of an individual event and a team event.

The recognition unit 110 that identifies the user's identifier based on the RFID wristband associated with the user being tagged transmits the user's identifier to the management unit 140 . For example, the recognition unit 110 may correspond to an RFID reader device.

The measurement unit 120 that has measured an index related to the user's exercise ability transmits the index related to the user's exercise ability to the management unit 140 .

The measurement unit 120 may include at least one measurement sensor.

For example, the at least one measurement sensor may include a time spent in relation to an exercise performed by the user, whether a specific condition is satisfied and a probability of satisfaction of a specific condition in relation to an exercise performed by the user, and an exercise related to the exercise performed by the user. At least one of a performance level and a power generated in association with an exercise performed by the user may be measured. As an example, when the user performs an individual competition-type exercise made by competition between a plurality of users, and the event is basketball free throw, at least one measurement sensor of the measurement unit 120 determines whether a specific condition is satisfied (eg; It can measure whether free throws are successful or not) and the probability of success (eg, the ratio of the number of successful free throws to the total number of attempts). For example, the measurement unit 120 and/or the management unit 140 may determine that the specific condition is satisfied only when the ratio of the number of successful free throws to the total number of free throw attempts is equal to or greater than a predetermined threshold.

The time taken in relation to the exercise performed by the user may be the time taken to satisfy a specific condition, the time that the specific condition is maintained, or simply the time taken to perform the exercise. For example, when the user performs a team game type exercise made by competition between two or more teams and the event is cycling, at least one measurement sensor of the measurement unit 120 is related to the exercise performed by the user. In some cases, it is possible to measure the “time it took the user to run 1km” or “the time the user maintained the speed of 30km/h”. Or it could simply measure “the time the user pressed the pedal”. What time the at least one measurement sensor measures is comprehensively determined whether the exercise is an individual or team event, whether the exercise is scored according to an index in relation to the individual or team event, and the characteristics of the exercise. can be decided by taking into account.

The measurement unit 120 measures at least some of the indicators related to the exercise ability of the user based on the image taken of the performance process. For example, when a user performs a basketball free throw, the measurement unit 120 receives an image of the user's free throw performance process, and analyzes the image to measure the number of free throw attempts of the user and the number of successful free throws of the user. can

The photographing unit 130 photographing the user's execution process transmits an image photographed of the user's execution process to the management unit 140 .

The management unit 140 receives the identifier of the user transmitted from the recognition unit 110 , receives an index related to the user's athletic ability transmitted from the measurement unit 120 , and performs the process transmitted from the photographing unit 130 . Receive the recorded video. The management unit 140 stores an index related to the user's exercise ability and an image captured by the execution process in association with the user's identifier.

When there is a request for transmission of information related to the user's exercise ability from the user, the management unit 140 transmits contents including an index related to the user's exercise ability and an image of the exercise performance process to a cloud server. ) through 150 to transmit to a platform stored in the terminal 160 related to the user.

The content includes not only an index related to the user's exercise ability and an image of the exercise performance process, but also additional information obtained by analyzing and processing at least a portion of the image captured by the index related to the user's exercise ability and the exercise performance process may include.

For example, when the user performs an exercise in the form of an individual match made by competition between a plurality of users, the management unit 140 records the user's individual match index transmitted from the measurement unit 120 related to the user's exercise ability. reflected in the , and the content may include a record of an individual exhibition. The individual match record may include a result of scoring an index related to a user's athletic ability, a result of deriving the ranking of the scoring result compared with other users participating in the individual match, and an image of the entire progress of the individual match. .

For example, when basketball free throws fall under an individual event (for clarity, it is assumed that the situation includes only one exercise in an individual match), the index related to the user's athletic ability is "10 attempts, 4 successes", and this The scoring result is “40 points (=100*(4/10))”, and the indicators of other users participating in the individual exhibition are “5 attempts, 0 successes”, “10 attempts, 6 successes”, respectively. In the case of “10 attempts, 2 successes”, the ranking of the scoring result may be “2nd place”. In addition, the video of the entire progress of the individual match may include ① only the user's free throw video, ② may include not only the user's free throw video but also the free throw video of other users participating in the individual war.

For example, when the user performs a team game type exercise made by competition between two or more teams, the management unit 140 classifies a plurality of users participating in the team game into one of two or more teams, and the recognition unit ( Based on the identifier received from 110), it is determined which team the user belongs to among two or more teams, and the index related to the user's athletic ability transmitted from the measurement unit 120 is reflected in the team game record of the team to which the user belongs. can In this case, the content includes a team match record, and the team match record records the record of the team to which the user belongs, the user's contribution to the team to which the user belongs, the ranking of the team to which the user belongs among two or more teams, and the overall progress of the team match. The captured image may be included.

For example, if cycling corresponds to a team event (for clarity, it is assumed that a situation in which the team event includes only one exercise), the index related to the user's athletic ability is “300 seconds, 10 kW of momentum”, and the same team in the team event Indices related to the exercise ability of the other two users in the team were “300 seconds, exercise quantity 5kW” and “300 seconds, exercise quantity 2kW”, respectively, and the indicators related to the exercise ability of the three users in the opposing team were “300 seconds, exercise quantity 1kW”, respectively. ”, “300 seconds, momentum 2kW”, “300 seconds, momentum 2kW”. In this case, the record of the team to which the user belongs is “900 seconds, 17kW of momentum”, the user's contribution is about 58.8% (=100*(10/(10+5+2))), and the team ranks 1st (since (10+5+2)>(1+2+2)). In addition, the video of the entire progress of the team event may include ① only the user’s cycling performance video, ② may include a cycling video of the user’s team, and ③ the user’s team and the rest of the teams participating in the team event. It may also include cycling images of them.

For example, the user may be a kid. In this case, the management unit 140 may transmit content including an index related to the user's exercise ability and an image of the exercise performance process to the platform stored in the user's guardian's terminal 160 through the cloud server 150. .

2 is a conceptual diagram illustrating a method of operating a system for measuring athletic ability in an individual battle situation according to an embodiment of the present invention.

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Referring to FIG. 2 , a user according to an embodiment may tag an RFID wristband 210 ('wearable device') to an RFID reader device (corresponding to the recognition unit 110 of FIG. 1 ) in order to perform a personal exhibition. . The RFID reader device that identifies the user's identifier based on the RFID wristband 210 associated with the user is tagged may transmit the user's identifier to the management unit 140 .

The individual exhibition performed by the user according to an embodiment may be configured such that the user sequentially performs at least one exercise while passing through a track. For example, the individual competition performed by the user may be configured to sequentially perform side steps 5 times, high jump, long jump, screen touch, obstacle avoidance, basketball free throw, and running 50M while passing the track.

The measurement unit 120 according to an embodiment measures an index related to the user's athletic ability in relation to 5 side steps, a high jump, a long jump, a screen touch, obstacle avoidance, a basketball free throw, and a running 50M, and the management unit 140 ) can be transmitted. When there is a request from the user for information related to the user's athletic ability, the management unit 140 according to an exemplary embodiment transmits content including an index related to the user's athletic ability and an image of the entire progress of the individual battle to the user. The content is transmitted to the platform stored in the terminal 160 related to It may include the result of deriving the ranking of .

3 is a conceptual diagram illustrating a method of operating an exercise ability measurement system in a team game situation according to an embodiment of the present invention.

Referring to FIG. 3 , a team event performed by a user according to an exemplary embodiment may correspond to a group cycling exercise. The management unit 140 classifies a plurality of users participating in the team game into any one of two or more teams, and determines which team the user belongs to among the two or more teams based on the identifier received from the recognition unit 110, The index related to the user's athletic ability transmitted from the measurement unit 120 may be reflected in the team game record of the team to which the user belongs.

For example, one device 310 may include the recognition unit 110 and the measurement unit 120 . For example, when a group cycling exercise is sequentially performed by a cycling machine fixed to the floor, the cycling machine includes an RFID tag unit and at the same time an indicator related to the user's exercise ability (exercise time, pedaling speed, momentum, etc.) may be configured to be measured.

An exemplary configuration of one device 310 including the recognition unit 110 and the measurement unit 120 will be described in more detail with reference to FIG. 4 .

For convenience of explanation, the case where one device 310 includes the recognition unit 110 and the measurement unit 120 has been described as an example of a team event, but this is not only a team event, but also an individual match, or a team match and an individual match. It can also be applied to individual exercises that do not belong to either side. Even when one device 310 includes the recognition unit 110 and the measurement unit 120 , the roles and functions of the recognition unit 110 and the measurement unit 120 described above do not change, but only one device Since both the recognition unit 110 and the measurement unit 120 are implemented in the 310, it may be possible to perform a convenient design exercise.

For example, one device 310 including the measurement unit 120 may measure an index related to a user's exercise ability in relation to cycling, and transmit it to the management unit 140 . When there is a request for transmission of information related to the user's athletic ability from the user, the management unit 140 according to an exemplary embodiment transmits content including an index related to the user's athletic ability and an image of the entire team game to the user. and transmitted to the platform stored in the terminal 160 related to, the content includes a team game record, the team game record includes a record of a team to which the user belongs, the user's contribution to the team to which the user belongs, and the user among two or more teams It may include the ranking of the team to which it belongs.

4 is a conceptual diagram illustrating a configuration of a device including a recognition unit and a measurement unit according to an embodiment of the present invention.

Referring to FIG. 4 , one device 310 including the recognition unit 110 and the measurement unit 120 corresponds to the RFID reader module 410 corresponding to the recognition unit 110 , and the measurement unit 120 . to include a timer module 430 and a memory module 440 . For example, if one device 310 is a device attached to a cycling machine fixed to the floor, the timer module 430 may measure the time the machine's pedals are moved (ie, the duration the user has exercised). In addition, the memory module 440 may have a built-in program for calculating the amount of exercise based on the speed of stepping on the pedal, and may measure the amount of exercise based thereon.

In addition, one device 310 according to an embodiment further includes at least one of a Wi-Fi module 420 , an LED module 450 , a battery 460 , and a power charging module 470 . can do.

The Wi-Fi module 420 is a module for communicating with the management unit 140 or updating a program stored in the memory module 440, etc. In relation to this, it is a module for outputting a real-time state to an electronic screen, and the battery 460 and the power charging module 470 may be modules for supplying power so that one device 310 can continue driving.

Meanwhile, the RFID reader module 410 , the Wi-Fi module 420 , the timer module 430 , the memory module 440 , and the LED module 450 may be driven by charging power of the battery 460 .

In addition, one device 310 may receive and/or obtain information indicating the charging power of a battery (not shown, a second battery) of the RFID wristband 210 ('wearable device') from the RFID wristband 210. there is. The RFID wristband 210 may be driven by charging power of a battery (not shown, a second battery).

5 is an exemplary diagram in which contents of the system for measuring exercise ability according to an embodiment of the present invention are output to a terminal related to a user.

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Referring to FIG. 5 , when there is a request for transmission of information related to the user's exercise ability, the management unit 140 transmits content including an index related to the user's exercise ability and an exercise performance image to the cloud server 150 ) through the platform stored in the terminal 160 related to the user.

For example, the user may check the athletic ability result through the content ( 510 ). Specifically, the content may simply include an indicator related to athletic ability, but the result of scoring the indicator related to athletic ability, the result of deriving the ranking of the scored result, the record of the team to which the user belongs, and the user It may further include the user's contribution to the team to which the user belongs, the ranking of the user's team (in the case of a team game), and the like. In addition, the content may further provide data for analyzing the exercise ability of the user by processing an index related to exercise ability. For example, the content may further include analysis data on health fitness including muscle strength, cardiorespiratory endurance, flexibility, muscular endurance, etc., or exercise fitness including reflex, agility, balance, bite, coordination, speed, etc. there is.

For example, the user may check a game video through the content ( 520 ). Specifically, the content may include a video of the exercise performance process, which may include both an individual event video, a team event video video, and a video video recording the performance of exercises that do not belong to either. .

For example, the content may provide a reward according to the ranking ( 530 ). The ranking may be determined based on at least a part of the ranking of the individual event, the ranking of the team event, and the performance results of exercises that do not belong to either of them. In addition, the rewards are differentially paid according to the ranking, thereby encouraging the user to derive more improved exercise performance results.

By using the exercise ability measurement system 100 according to the present invention as described above, the user can conveniently check an index related to exercise ability and an image captured by the exercise performance through the terminal 160 . In addition, it is possible to provide an element of competition by providing results compared with other indicators.

Furthermore, when the user of the exercise ability measurement system 100 according to an embodiment of the present invention is an infant, a guardian such as a parent can measure the exercise ability, health score, physical development trend, etc. of the user who is a child through the mobile phone terminal 160 . can be checked

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6 is a diagram for explaining a frequency waveform according to an embodiment of the present invention.

The measuring unit 120 according to an embodiment of the present invention may include at least one microwave sensor. For example, the at least one microwave sensor emits and collides with at least one user (eg, a first user, a second user, a first player, a second player, etc.) using a reflected signal It may be identified and/or recognized that the user is approaching the measuring unit 120 (and/or the microwave sensor).

In addition, the microwave sensor, a first step of continuously transmitting a transmission signal 610 generated in the microwave sensor; A second step of receiving the received signal 620 that the transmission signal 610 is reflected by the detection target, that is, vehicle A (300) (and / or vehicle B (500)) is input to the microwave sensor; a third step of generating a frequency waveform 630 of a detection target by mixing the transmission signal 610 and the reception signal 620; A fourth step of storing the frequency waveform 630 in a storage module (eg, memory) of the vehicle identification and warning system 100 may be performed. Here, the 'received signal 620' may be referred to as a 'reflected signal'.

In addition, the microwave sensor, by repeatedly performing the first to fourth steps, the detection target is the at least one user (eg, the first user) using a plurality of frequency waveforms 630 stored in the memory module 440 . , second user, first player, second player, etc.) or other objects (eg, other living things, other objects) and classifying them according to a fifth step of building a detection target database; When the detection target approaches the microwave sensor, the frequency waveform 630 generated by performing the first to third steps is compared with the frequency waveform 630 stored in the database, and the detection target is at least It may include a sixth step (S60) of identifying whether it is one user or another object.

For example, the frequency of use of the transmission signal 610 and the reception signal 620 is about 10.525 GHz, and the obtained signal is obtained through frequency modulated continuous wave (FMCW) modulation. Similarly, the frequency change according to continuous time can be output as a graph.

At this time, the time it takes between the transmission signal 610 is transmitted from the microwave sensor and the received signal 620 reflected by the detection target is input to the microwave sensor may be expressed as t=2R/c. where R is the distance between the microwave sensor and the sensing target, and c is about 3*10 ⁸ [m/s] in terms of the speed of light.

And, through this, when mixing the transmission signal 610 and the reception signal 620 in the third step, the frequency change (ft) caused by the time delay and the frequency change (fv) caused by the Doppler effect The distance (R) and speed (Vr) information of the sensing target is generated through the sum and difference, and as shown in the graph shown at the bottom of FIG. 6 , a frequency waveform in which the transmission signal 610 and the reception signal 620 are mixed. (630).

는 라운드 트립 지연(round trip delay)으로, 송신 신호(610)가 마이크로웨이브 센서에서 송신되어 감지 대상(즉, 상기 적어도 하나의 사용자)에 반사된 수신 신호(620)가 마이크로웨이브 센서로 입력되는 사이에 걸리는 시간이며, 도 6의 상단에 도시된 그래프에서 Tm은 주파수 변화 단위 시간(sweep time)으로, 송신 신호(610) 또는 수신 신호(620)의 주파수가 최소 주파수(minimum frequency)인 f₀에서 증가하여 첨두치(Peak level)까지 걸리는 시간이다.Also, in FIG. 6

is a round trip delay (round trip delay), between the transmission signal 610 is transmitted from the microwave sensor and the received signal 620 reflected by the detection target (ie, the at least one user) is input to the microwave sensor In the graph shown at the top of FIG. 6 , Tm is a frequency change unit time (sweep time), and the frequency of the transmission signal 610 or the reception signal 620 is the minimum frequency f ₀ at It is the time it takes to increase to the peak level.

In addition, in the graph shown at the bottom of FIG. 6 , ft is a frequency shift to time delay caused by a time delay, and fv is a frequency change caused by the Doppler effect (Doppler frequency).

And, when mixing the transmission signal 610 and the reception signal 620 in the third step, a frequency change (ft) caused by a time delay and a frequency change (fv) caused by the Doppler effect It is characterized in that the distance (R) and approach speed (Vr) information of the sensing target is generated through the sum and difference of .

이고, 감지 대상의 접근 속도(Vr)는

인 것을 특징으로 할 수 있다. 여기서 B는 주파수 변화 대역폭(sweep bandwidth)이고, Tm이 주파수 변화 단위 시간(sweep time)이고, ft는 시간 지연에 의하여 발생하는 주파수 변화(frequency shift to time delay)이며, fv는 도플러 효과에 의하여 발생하는 주파수 변화(Doppler frequency)이고, c는 광속(3*10⁸ mm/s)이며,

은 주파수 파장(wavelength)일 수 있다. 이 때 n은 정수일 수 있으며, 일 예로 n은 2일 수 있다.In addition, the distance (R) of the detection target is

and the approach speed (Vr) of the detection target is

It can be characterized as being. where B is a frequency change bandwidth (sweep bandwidth), Tm is a frequency change unit time (sweep time), ft is a frequency shift to time delay caused by a time delay, and fv is caused by the Doppler effect is the change in frequency (Doppler frequency), c is the speed of light (3*10 ⁸ mm/s),

may be a frequency wavelength. In this case, n may be an integer, for example, n may be 2.

When the value fv of the frequency change (Doppler frequency) generated by the Doppler effect in the third step is sensed to converge in the range of 60 to 150 Hz, it sets the detection target to the at least one user (eg, the first user, the second user, the second 1st player, 2nd player, etc.) and store the information, and when acquiring the distance (R) and approach speed (Vr) information of the detection target in the fourth step, the approach speed (Vr) is 1~10Km/h. By limiting the range to the movement speed of the at least one user (eg, the first user, the second user, the first athlete, the second athlete, etc.), the Doppler frequency fv of the measured value outside the 0~200Hz range is can be processed As described above, the accuracy of the Doppler frequency change value of the sensing target can be improved by limiting information that can be identified as a human through the actual measurement value, thereby improving the misrecognition rate.

And, in the fourth step described above, the amplitude (Amplitude), the width (Duration), the peak value (Peak level), the polarity (Polarity), A rise time is stored together with the frequency waveform 630 , and in the fifth step, the detection target is the at least one user (eg, the first user, the second user, the second user) together with the frequency waveform 630 . 1st player, 2nd player, etc.) or another object (another living thing or another object), they are classified and stored in the database. Amplitude, Duration, Peak level, Polarity, Rise time and frequency waveforms of the transmitted signal 610 and the received signal 620 according to the corresponding sensing target distance Comparing 630 with each classified data of the database, it is characterized in that the detection target is identified whether the at least one user or another object.

When the frequency band is output in the above-mentioned sixth step, when the peak value of each amplitude has a value of 142 at a frequency of 11 Hz, 77.9 at 18 Hz, 65.5 at 26 Hz, and 74.6 at 29 Hz, it can be classified as human reference pattern information and stored. .

The above-described amplitude (Amplitude), width (Duration), peak level (Peak level), polarity (Polarity), rise time (Rise time) and each data classified in the frequency waveform 630 in the database is the detection target. A sequence of signal waveforms unique enough to be classified according to whether the movement is the at least one user (eg, the first user, the second user, the first player, the second player, etc.) or another object is generated, and through this data can be built.

In addition, the measurement unit 120 is the reflected signal 620, the frequency waveform 630 and / or the detection target obtained through the microwave sensor is the at least one user (eg, the first user, the second user, the first The operation mode of the system 100 of the present invention may be set differently based on information indicating whether it is a player, a second player, etc.) or another object (another living thing or another object).

In addition, the system 100 of the present invention can obtain in real time the distance (R) of the detection target and the approach speed (Vr) of the detection target through the microwave sensor (that is, a plurality of distance (R) values and a plurality of can measure an access speed (Vr) value of ), and based on this, it is possible to generate predetermined vector information.

For example, the system 100 of the present invention provides i) a first distance (R1) and ii) a first approach speed (Vr1) and iii) a first detection target through the microwave sensor at a first time point. It is possible to measure the first reception direction of the received signal reflected from the first detection target, and at a second time point, a second distance (R2) and a second approach speed (Vr2) to the first detection target, and iii) a second 1 The second reception direction of the received signal reflected from the sensing target may be measured.

For example, the system 100 of the present invention provides vector information for the first sensing target based on a first distance, a first approach speed, a first receiving direction, a second distance, a second approach speed, and a second receiving direction. can create The vector information on the first sensing target may include information on a moving direction and a moving speed of the first sensing target. Here, unlike the moving speed of the first sensing target indicating the speed at which the first sensing target moves in the moving direction, the first approach speed is the first sensing target approaching the measuring unit 120 and/or the microwave sensor. It is different in that it represents the speed of

As another example, the system 100 of the present invention may generate vector information about the first sensing target based on the first distance, the first receiving direction, the second distance, and the second receiving direction.

In addition, an embodiment of the present invention may further include the following features.

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1 and 2 , the measurement unit 120 may observe and/or monitor a first stadium (eg, TRACK 1) and/or a second stadium (eg, TRACK 2).

For example, the measurement unit 120 is a predetermined object (or the at least one user, observation object, vehicle, other objects, etc.) are located and/or not located.

For example, the measurement unit 120 may count a time in which the predetermined object has never been identified in the first stadium and/or the second stadium, i) when the counted continuous time is a first threshold value or ii) when the counted total time (ie, including non-continuous time) exceeds a second threshold, the single device 310 may be set to a reset mode. (Meanwhile, ii) with respect to the counted total time, when the reset mode is executed (and/or implemented), the count may be restarted from the beginning again.)

Also, in the reset mode, the charging power of the battery 460 exceeds the first threshold, and the charging power of the battery (not shown, the second battery) of the RFID wristband 210 ('wearable device') exceeds the second threshold. It can be executed only in case.

For example, at least one microwave sensor of the measuring unit 120 is installed at a first point (eg, the Start point of FIG. 2 ) of the first stadium and/or the second stadium, and the first stadium and/or second stadium 2 A predetermined reflective member (or reflective object) capable of reflecting the signal emitted by the at least one microwave sensor may be installed at the second point (eg, the Finish point of FIG. 2 ) of the stadium.

에 기반하여 산출된 제1 지점과 제2 지점 간의 추정 거리(R)(또는 측정부(120)와 반사 부재 간의 추정 거리(R))를 산출할 수 있다.When the one device 310 is set to the reset mode, at least one microwave sensor of the measuring unit 120 installed at the first point is the reflective member (or reflective object) installed at the second point. It can transmit (and receive reflected signals) microwave signals towards. 6 and

The estimated distance R between the first point and the second point calculated based on , (or the estimated distance R between the measurement unit 120 and the reflective member) may be calculated.

In addition, the measurement unit 120 receives information indicating the distance between the first point (eg, the start point of FIG. 2 ) and the second point (eg, the finish point of FIG. 2 ) of the first stadium and/or the second stadium. It may be received and/or obtained from an external (eg, external server, terminal). At this time, the distance between the first point (eg, the start point of FIG. 2 ) and the second point (eg, the finish point of FIG. 2 ) of the first stadium TRACK 1 is expressed as R1, and the second stadium TRACK 2 ), the distance between the first point (eg, the start point of FIG. 2 ) and the second point (eg, the finish point of FIG. 2 ) may be expressed as R2.

Meanwhile, in order to increase the accuracy of the microwave sensor-based distance estimation and speed estimation, the measurement unit 120 may determine predetermined weights w1 and w2 based on Equations 1 and 2 below.

[Equation 1]

[Equation 2]

In addition, the measuring unit 120 calculates the moving speed (or distance) of the measuring unit 120 (and/or the first point) and at least one user of the present invention based on Equations 5, 6, and 7 below. can

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[Equation 3]

[Equation 4]

[Equation 5]

The methods according to the present invention may be implemented in the form of program instructions that can be executed by various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the computer-readable medium may be specially designed and configured for the present invention, or may be known and available to those skilled in the art of computer software.

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Examples of computer-readable media may include hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions may include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as at least one software module to perform the operations of the present invention, and vice versa.

In addition, the above-described method or apparatus may be implemented by combining all or part of its configuration or function, or may be implemented separately.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that it can be done.

Claims (1)

In the exercise capacity measurement system,
A recognition unit for identifying an identifier (ID) of the user based on the RFID (Radio-Frequency Identification) bracelet associated with the user is tagged;
a measurement unit configured to measure an index related to the user's athletic ability based on at least one exercise performed by the user in the stadium;
a photographing unit for photographing the user's performance process for at least a portion of the at least one exercise; and
Manages the user's identifier and information related to the user's athletic ability, receives the user's identifier transmitted from the recognition unit, receives an index related to the user's athletic ability transmitted from the measurement unit, and Receives an image of the performing process transmitted from the photographing unit, stores an index related to the user's exercise ability in association with the user's identifier, and records the image of the performing process in conjunction with the user's identifier management department to store; including,
The recognition unit includes an RFID (Radio-Frequency Identification) reader device,
The at least one exercise includes at least one of side step, high jump, long jump, screen touch, obstacle avoidance, basketball free throw, running, cycling and rowing,
The measurement unit includes at least one measurement sensor, and the at least one measurement sensor includes a time taken in relation to the exercise performed by the user, whether a specific condition is satisfied in relation to the exercise performed by the user, and the specific condition Satisfaction probability, the exercise performance level related to the exercise performed by the user, and the power generated in relation to the exercise performed by the user are measured,
The measurement unit,
i) including a first microwave sensor installed at one end of the stadium and a second microwave sensor installed at the other end of the stadium,
ii) is transmitted from the first microwave sensor, is reflected by the user, and analyzes the first reflected signal received by the first microwave sensor, based on the first reflected signal and Equation 1 below Calculate the estimated movement speed (V _esti ) of the user, but -f _v represents a frequency change (Doppler frequency) caused by the Doppler effect, λ represents a frequency wavelength corresponding to the first reflected signal (wavelength), n is a predetermined integer value, R ₁ represents the distance from the first location where the first microwave sensor is measured in advance to the second location where the second microwave sensor is installed, R ₂ is the following equation represents the estimated distance from the first microwave sensor to the second microwave sensor calculated by 2, f _t is transmitted from the first microwave sensor, is reflected by the second microwave sensor, and the first represents a frequency shift to time delay caused by a time delay corresponding to a second reflected signal received by the microwave sensor, c represents a luminous flux, and Tm represents a frequency change corresponding to the second reflected signal unit time (sweep time), B is a frequency change bandwidth corresponding to the second reflected signal (sweep bandwidth) -
[Equation 1]

[Equation 2]

iii) measuring at least some of the indicators related to the exercise ability of the user based on the image taken of the performance process and the estimated movement speed,
The management unit,
Transmitting content (contents) including an index related to the user's exercise ability and an image of the execution process to the terminal related to the user,
When at least a part of the at least one exercise constitutes an individual competition made by competition among a plurality of users:
The management unit,
Reflecting the indicator related to the user's athletic ability transmitted from the measurement unit in the user's individual record,
The content includes the personal exhibition record,
The individual record is a result of scoring an index related to the user's athletic ability, a result of deriving the ranking of the scoring result compared with other users participating in the individual exhibition, and an image of the entire progress of the individual exhibition A system comprising a.

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