KR102419500B1 - Smart leg press machine with foot sensor - Google Patents

Abstract

The present disclosure relates to a smart leg press machine. The smart leg press machine comprises: a seat configured to allow a user to sit thereon; a frame on which a first guide guiding the movements of the seat is installed; a footplate supported by the frame; a first sensor module configured to sense a force applied to the footplate; a display configured to receive user inputs and output information related to physical activity; and a controller configured to control the operation of the display.

Description

Smart leg press machine with foot sensor {SMART LEG PRESS MACHINE WITH FOOT SENSOR}

The present disclosure relates to a smart leg press machine equipped with a footrest sensor, and more particularly, to a smart leg press machine capable of providing real-time feedback regarding a user's exercise.

Recently, as leisure time increases and social interest in health increases, the population doing weight training to improve muscle strength and create a balanced body is increasing. The leg press machine used in weight training is a device configured to strengthen the muscles of the lower body as a whole by pushing the footrest connected to the heavy weight by the user using the force of the lower body.

The conventional leg press machine has a problem in that it is difficult to know whether the user is performing the exercise with the correct posture or force. In addition, the conventional leg press machine has a problem in that it is impossible to control the resistance force during exercise using physical resistance, or a large-capacity motor accompanied by noise is required to generate a large resistance force.

The present disclosure provides a smart leg press machine for solving the above problems.

The present disclosure may be implemented in various ways including a method, an apparatus (system), or a computer program stored in a readable storage medium.

According to an embodiment of the present disclosure, the smart leg press machine senses a seat configured to allow a user to sit, a frame provided with a first guide for guiding the movement of the seat, a footrest supported by the frame, and a force applied to the footrest It may include a first sensor module configured to do so, a display configured to receive a user input and output information related to exercise, and a controller configured to control an operation of the display.

According to an embodiment of the present disclosure, the control unit may be further configured to receive information related to the force applied to the footrest from the sensor module and output the force applied to the footrest to the display in real time.

According to an embodiment of the present disclosure, the sensor module includes a plurality of sensors arranged to measure the position of each of the user's left foot and the user's right foot on the footrest, and the control unit includes, from the plurality of sensors, the position of the user's left foot and the Receive related information and information related to the position of the user's right foot, output the information related to the position of the user's left foot to the first area of the display, and output the information related to the position of the user's right foot to the second area of the display It may be further configured to do so.

According to an embodiment of the present disclosure, when the distance between the position of the user's left foot and the first predetermined position exceeds a preset first threshold, the control unit outputs a first warning indication to the display, and and outputting a second warning indication to the display when the distance between the location and the second predetermined location exceeds a first preset threshold.

According to an embodiment of the present disclosure, the first predetermined position and the predetermined second position may be further configured to change according to the type of exercise selected by the user.

According to an embodiment of the present disclosure, the controller may include, in a first area of the display, the position of the user's left foot using a first visual object, and in the second area of the display, the position of the user's right foot as a second visual object It may be further configured to display using , the first warning indication is provided to the user as a color change of the first visual object, and the second warning indication is provided to the user as a color change of the second visual object.

According to an embodiment of the present disclosure, the sensor module includes a plurality of sensors disposed to measure the force applied to the footrest by each of the user's left foot and the right foot, and the control unit includes the user's left foot from the plurality of sensors to the footrest. Receives information related to the applied force and information related to the force applied by the user's right foot to the footrest, and outputs information related to the force applied by the user's left foot to the footrest in the first area of the display, and the force applied by the user's right foot to the footrest It may be further configured to output related information to the second area of the display.

According to an embodiment of the present disclosure, the control unit outputs a third warning indication to the display when the difference between the force applied by the user's left foot to the footrest and the force applied by the user's right foot to the footrest exceeds a preset second threshold It may be further configured to do so.

According to an embodiment of the present disclosure, the first area of the display displays the force applied by the user's left foot to the footrest as a bar graph, and the second area of the display displays the force applied by the user's right foot to the footrest as a bar graph, and , when the difference between the force applied by the user's left foot to the footrest and the force applied by the user's right foot to the footrest exceeds a preset second threshold, the first area and the second area may be configured to be displayed in different colors .

According to an embodiment of the present disclosure, the smart leg press machine further includes a load generating unit for generating a load to be applied to the seat, and the load generating unit, a motor generating an initial load, is connected to the motor to amplify the initial load to the seat an electro-hydraulic actuator configured to generate a load to be imparted to the Receive a first user input associated with the magnitude of a load to be imparted, receive information related to a time point at which the user starts pushing the footrest from the electro-hydraulic actuator, and based on the first user input and information related to the time point, the motor and the electro-hydraulic It may be further configured to control the actuator.

According to an embodiment of the present disclosure, the control unit receives, from a user, a second user input associated with a viscous force, an elastic force, and an inertial force of a load to be applied to the sheet generated by the load generating unit, and includes a first user input and a second user input. and may be further configured to control the motor and the electro-hydraulic actuator based on information related to the input and timing.

According to an embodiment of the present disclosure, the smart leg press machine further includes a second sensor module configured to detect the movement of the footrest, and the control unit receives the user's initial exercise length from the second sensor module, and the initial exercise length Calculating the movement recognition distance based on, and when the user pushes the footrest more than the movement recognition distance, it may be further configured to be recognized as a one-time movement.

According to some embodiments of the present disclosure, by providing the user with the amount of force the user applies to the footrest in real time, the user can monitor the exercise state in real time and exercise with a force of an appropriate size for every exercise cycle.

According to some embodiments of the present disclosure, when the user's feet are misplaced according to the type of exercise being performed, the user may receive warning messages related thereto in various forms to easily move the feet to the normal position. Accordingly, the user can perform the exercise in an optimal posture.

According to some embodiments of the present disclosure, when the user applies different force to both feet, the user may receive a warning message related thereto in various forms to easily adjust the same force to be applied to both feet. Accordingly, it is possible to prevent the user's lower body from being unbalanced.

According to some embodiments of the present disclosure, it is possible to provide various exercise programs suitable for the user's exercise purpose by combining various characteristics and strength of the load. Accordingly, it is possible to maximize the exercise effect of the user.

According to some embodiments of the present disclosure, it is possible to reduce the risk of an accident during exercise by changing the amount of exercise load in real time.

According to some embodiments of the present disclosure, including a load generating unit including a miniaturized actuator, the weight and size can be significantly reduced compared to the existing leg press machine, and when the user's exercise weight changes, an injury caused by direct contact with a weight, etc. can prevent

According to some embodiments of the present disclosure, it is possible to solve the noise problem of the existing leg press machine, and it is possible to reduce power consumption due to the use of a large-capacity motor.

The effect of the present disclosure is not limited to the above-mentioned effects, and other effects not mentioned are those of ordinary skill in the art to which the present disclosure belongs from the description of the claims (hereinafter referred to as 'person of ordinary skill') can be clearly understood by

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present disclosure will be described with reference to the accompanying drawings described below, in which like reference numerals denote like elements, but are not limited thereto.
1 is a diagram illustrating an example of receiving information about an exercise through a display while a user uses a smart leg press machine according to an embodiment of the present disclosure.
2 is a perspective view of a smart leg press machine according to an embodiment of the present disclosure.
Figure 3 is a view showing a sensor module of the footrest of the smart leg press machine according to an embodiment of the present disclosure.
FIG. 4 is a diagram illustrating an example in which guidance related to a user's foot is deviating from a predetermined position according to an embodiment of the present disclosure;
FIG. 5 is a diagram illustrating an example in which guidance related thereto is displayed on a display when a user applies a force to both feet differently according to an embodiment of the present disclosure;
6 is a diagram illustrating an example in which information related to a user's exercise is comprehensively output on a display according to an embodiment of the present disclosure.
7 is a block diagram showing a detailed configuration of a smart leg press machine according to an embodiment of the present disclosure.
8 is a flowchart illustrating a method in which a controller provides information related to an appropriate load and exercise to a user according to an embodiment of the present disclosure.

Hereinafter, specific contents for carrying out the present disclosure will be described in detail with reference to the accompanying drawings. However, in the following description, if there is a risk of unnecessarily obscuring the gist of the present disclosure, detailed descriptions of well-known functions or configurations will be omitted.

In the accompanying drawings, the same or corresponding components are assigned the same reference numerals. In addition, in the description of the embodiments below, overlapping description of the same or corresponding components may be omitted. However, even if descriptions regarding components are omitted, it is not intended that such components are not included in any embodiment.

Advantages and features of the disclosed embodiments, and methods of achieving them, will become apparent with reference to the embodiments described below in conjunction with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the present embodiments allow the present disclosure to be complete, and those of ordinary skill in the art to which the present disclosure pertains. It is only provided to fully inform the person of the scope of the invention.

Terms used in this specification will be briefly described, and the disclosed embodiments will be described in detail. Terms used in this specification have been selected as currently widely used general terms as possible while considering the functions in the present disclosure, but these may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technology, and the like. In addition, in a specific case, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding invention. Therefore, the terms used in the present disclosure should be defined based on the meaning of the term and the contents of the present disclosure, rather than the simple name of the term.

References in the singular herein include plural expressions unless the context clearly dictates the singular. Also, the plural expression includes the singular expression unless the context clearly dictates the plural. In the entire specification, when a part "includes" a certain element, this means that other elements may be further included, rather than excluding other elements, unless otherwise stated.

In addition, the term 'module' or 'unit' used in the specification means a software or hardware component, and 'module' or 'unit' performs certain roles. However, 'module' or 'unit' is not meant to be limited to software or hardware. A 'module' or 'unit' may be configured to reside on an addressable storage medium or configured to reproduce one or more processors. Thus, as an example, 'module' or 'unit' refers to components such as software components, object-oriented software components, class components and task components, processes, functions, properties, may include at least one of procedures, subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, database, data structures, tables, arrays or variables. Components and 'modules' or 'units' are the functions provided therein that are combined into a smaller number of components and 'modules' or 'units' or additional components and 'modules' or 'units' can be further separated.

According to an embodiment of the present disclosure, a 'module' or a 'unit' may be implemented with a processor and a memory. 'Processor' should be construed broadly to include general purpose processors, central processing units (CPUs), microprocessors, digital signal processors (DSPs), controllers, microcontrollers, state machines, and the like. In some contexts, a 'processor' may refer to an application specific semiconductor (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), or the like. 'Processor' refers to a combination of processing devices, such as, for example, a combination of a DSP and a microprocessor, a combination of a plurality of microprocessors, a combination of one or more microprocessors in combination with a DSP core, or any other such configuration. You may. Also, 'memory' should be construed broadly to include any electronic component capable of storing electronic information. 'Memory' means random access memory (RAM), read-only memory (ROM), non-volatile random access memory (NVRAM), programmable read-only memory (PROM), erase-programmable read-only memory (EPROM); may refer to various types of processor-readable media, such as electrically erasable PROM (EEPROM), flash memory, magnetic or optical data storage, registers, and the like. A memory is said to be in electronic communication with the processor if the processor is capable of reading information from and/or writing information to the memory. A memory integrated in the processor is in electronic communication with the processor.

Throughout this specification, the term 'on a network' or 'on a network' may refer to a state that is searchable or accessible through any electronic device capable of wired/wireless communication. For example, 'on a network' or 'on a network' may indicate a state in which any content and/or information related thereto can be searched for or accessed in any device connected to any electronic device by wire or wirelessly.

1 is a diagram illustrating an example of receiving information about exercise through a display while a user uses a smart leg press machine 120 according to an embodiment of the present disclosure. As shown, the user 110 is seated on the seat, and the footrest 122 supported by the frame of the smart leg press machine 120 can be pushed with both feet of the user 110 to perform the exercise. In this case, the appropriate position of both feet of the user 110 may be different depending on the purpose of the exercise to be performed by the user 110 and the expected effect.

In one embodiment, the display 124 may be configured to receive an input from the user 110 and output information related to the user's 110 exercise. For example, the user 110 inputs a user input related to the size of the load to be applied to the sheet, the viscous force of the load, the elastic force of the load, the inertial force of the load, etc. on the display 124, and the related information is displayed on the display 124 can be output to In another example, the user 110 may perform an exercise to be performed (eg, a standard leg press, a wide stance leg press, a narrow stance leg press, a high-fit leg press, a low-fit leg press, a single leg press, strength training, A user input related to hypertrophy training, muscular endurance training, etc.) may be input, and information related thereto may be output to the display 124 .

In one embodiment, the display 124 displays information related thereto on the display 124 when the position of both feet of the user 110 is not appropriate during the exercise according to the type of exercise the user 110 selects to perform. (126) can be output. In another embodiment, the display 124 may output information related thereto on the display 124 when the force for pushing the footrest 122 is different between the left foot and the right foot of the user 110 . In addition, the display 124 may output various information related to the exercise of the user 110 . This will be described later.

2 is a perspective view of a smart leg press machine 200 according to an embodiment of the present disclosure. As shown, the smart leg press machine 200 includes a frame 210, a seat 220, a guide 230, a footrest 240, a display 250, a load generating module 260 and a control unit (not shown). may include The controller (not shown) may include at least one processor. The display 250 may be configured integrally with the footrest 240 or implemented as a separate configuration. The seat 220 may be configured to allow a user to sit on it.

The frame 210 is a configuration that allows the smart leg press machine 200 to contact the ground, and other components may be installed on the frame 210 or the frame 210 may be configured to support other components. A guide 230 for guiding the movement of the seat 220 may be installed in the frame 210 so that the seat 220 can move as the user performs an exercise. In FIG. 2 , the guide 230 is illustrated as including a pair of rails, but is not limited thereto, and may include any configuration capable of guiding the movement of the seat 220 .

The footrest 240 is supported by the frame 210 and may be disposed at a position where the user can push with his or her feet while sitting on the seat 220 . The footrest 240 may include any type of footrest that enables the user to activate a muscle region to be trained. For example, the footrest 240 may include a footrest configured to raise both the user's feet as one plate form or a footrest configured to lift both the user's feet separately in the form of two plates, but this not limited

The display 250 may receive an input from the user and provide information about the user's exercise to the user. Display 250 may refer to any display device associated with a computing device, eg, any capable of receiving user input and displaying any information/data controlled by or provided from the computing device. may refer to a display device of For example, the display 250 may be a touch display.

In FIG. 2 , the display 250 is positioned on the footrest 240 and is shown to be integrally formed with the footrest 240 , but the present invention is not limited thereto, and may be arranged at any position of the smart leg press machine 200 . Alternatively, the display 250 may be located outside the smart leg press machine 200 connected to the smart leg press machine 200 by wire or wirelessly, and may be configured to be freely detachable. Additionally, by connecting the smart leg press machine 200 and the user's mobile phone, tablet, etc., wired or wirelessly, the user can use the mobile phone or tablet to change settings related to exercise or receive exercise information. have.

In an embodiment, the exercise-related information displayed on the display 250 may include a set value related to an exercise input by the user or a value calculated according to the user's exercise performance. For example, the information about the exercise may include a load value to be applied to the seat, a type of load to be applied to the seat, the number of target exercise sets, the number of exercise sets performed, the number of target exercises performed, the number of exercises performed, and the footrest 240 . The force applied to the whole, the force applied by both feet of the user to the footrest 240, the position information of the user's feet, the warning display for incorrect exercise performance, the recommended value of the time to maintain the tension to improve muscle strength, etc. may include

The load generating module 260 may be configured to generate a load required for a user to perform an exercise. In an embodiment, the load generating module 260 may include a motor, an electro-hydraulic actuator, and a series elastic actuator. When the motor generates a predetermined amount of initial load, the electro-hydraulic actuator may amplify the initial load generated from the motor to generate a load to be applied to the seat 220 . In addition, the series elastic actuator may include a plurality of elastic bodies, and is connected to the electro-hydraulic actuator, when the user 110 starts to push the footrest 240 or when the user 110 finishes pushing the footrest 240 . It may be configured to detect a viewpoint or the like. According to the data sensed by the electro-hydraulic actuator, the motor and the electro-hydraulic actuator may be controlled to apply a load to the seat 220 .

3 is a view showing a sensor module of the footboard 240 of the smart leg press machine according to an embodiment of the present disclosure. As shown, the scaffold 240 may include a first sensor module including a plurality of sensors 312 , 314 , 316 , 318 , 322 , 324 , 326 , 328 . In one embodiment, the first sensor module may be configured to detect the position of each foot of the user, the force applied by the user's left foot to the footrest 240 , the force applied by the user's right foot to the footrest 240 , and the like.

As shown, the footrest 240 is the first area 310 of the footrest that senses the position of the user's left foot and the force applied to the footrest 240 by the user's left foot, the position of the user's right foot, and the user's right foot is the footrest It may be composed of a second region 320 of the footrest that senses the force applied to the 240 . The first area 310 of the footrest and the second area 320 of the footrest may be formed of separate iron plates and the like, and may be disposed inside the footrest 240 . As shown, four sensors 312 , 314 , 316 , 318 may be disposed at each corner portion of the first area 310 of the footrest, and similarly, at each corner portion of the second area 320 of the footrest. Four sensors 322 , 324 , 326 , 328 may be disposed. Without being limited thereto, an arbitrary number of sensors may be installed in the first area 310 of the footrest and the second area of the footrest ( 320) may be disposed at any location. In addition, although the first sensor module is illustrated as being disposed inside the scaffold 240 , the present invention is not limited thereto, and may be disposed outside the scaffold 240 .

FIG. 4 is a diagram illustrating an example in which a guide related thereto is displayed on a display when the position of a user's foot is out of a predetermined position according to an embodiment of the present disclosure. The control unit receives information related to the position of the user's left foot and the position of the user's right foot from a plurality of sensors arranged to measure the position of each of the user's left and right foot on the footrest, and outputs the information to the display can do. Through the first operation 410 and the second operation 440 , the user may adjust the position of the foot to fit the movement.

The first operation 410 shows an example in which the position of the user's right foot deviates from the predetermined position by more than a predetermined threshold and a warning indication is output on the display. As illustrated, a first visual object 422 indicating the position of the user's left foot on the footrest may be displayed in the first area 420 of the display. Similarly, a second visual object 432 representing the location of the user's right foot on the footrest may be displayed within the second area 430 of the display.

In one embodiment, when the distance between the location of the user's foot and the predetermined location exceeds a first preset threshold (eg, 15 cm), a warning message may be displayed. Here, the predetermined position and/or the first threshold at which the user's foot should be located may be different depending on the type of exercise (standard leg press, wide stance leg press, narrow stance leg press, etc.) selected by the user. For example, when the distance between the position of the user's left foot and the first predetermined position 424 does not exceed a predetermined first threshold, the warning message may not be displayed. On the other hand, when the distance between the position of the user's right foot and the predetermined second position 434 exceeds a preset first threshold, a warning message may be displayed.

For example, the color of the second visual object 432 indicating the position of the user's right foot is displayed/displayed differently from the color of the first visual object 422 , and the size of the second visual object 432 is the second. 1 It may be displayed differently from the size of the visual object 422 . Additionally or alternatively, an icon (eg, an arrow icon) indicating a direction in which the user should move the foot may be displayed near the second visual object 432 indicating the location of the user's right foot. Additionally or alternatively, the warning indication may be provided in such a way that the background of any visual object, symbol, text, etc., the type of pattern or the size of the pattern, etc. are changed, and the user recognizes by a sense other than sight, such as a warning sound. It may be provided in any form possible.

In an embodiment, the force that the user's foot applies to the footrest may be displayed on the display in the form of a bar graph. As shown, the force that the user's left foot applies to the footrest may be displayed as a bar graph 426 on the first area 420 of the display. Similarly, the force the user's right foot applies to the footrest may be displayed as a bar graph 436 on the second area 430 of the display. When the distance between the position of the user's right foot and the second predetermined position 434 exceeds the first preset threshold, the color of the bar graph 436 displayed on the second area 430 of the display is It is displayed in a color different from that of the bar graph 426 displayed on the first region 420 to warn the user that the position of the foot is incorrect.

In an embodiment, the warning display related to the position of the user's left foot and the warning display related to the position of the user's right foot may be displayed in different or the same manner. For example, the warning display related to the position of the left foot and the warning display related to the position of the right foot may have different colors and sizes, and the user may directly set them.

The second operation 440 represents an example in which the user receives the warning message, moves the position of the right foot, and places both the left foot and the right foot in their normal positions. As illustrated, since the distance between the position of the user's left foot and the first predetermined position 424 does not exceed the first preset threshold, a warning message related to the position of the left foot may not be displayed. Since the distance between the position of the user's right foot and the predetermined second position 434 does not exceed the first preset threshold, a warning message related to the position of the right foot may not be displayed.

Although it is illustrated in FIG. 4 that information related to the position of the user's foot is displayed on the display as visual objects 422, 432, 442, and 444 in the shape of a foot, the present invention is not limited thereto, and any visual object, voice, symbol or text is not limited thereto. It can also be printed out. In FIG. 4 , information related to the position of the user's left foot and the information related to the position of the user's right foot are shown to be output in the first area 420 of the display and the second area 430 of the display, but the present invention is not limited thereto. . For example, the above information may be displayed simultaneously or overlapped in one area of the display. Additionally, when the single-leg press exercise in which the user performs the exercise with only one leg is performed, only information related to the position of the user's foot performing the exercise may be provided.

With this configuration, when the user's feet are misplaced according to the type of exercise being performed, he or she can receive warning messages related thereto in various forms to easily move the feet to the normal position. Accordingly, the user can perform the exercise in an optimal posture.

FIG. 5 is a diagram illustrating an example in which guidance related thereto is displayed on a display when a user applies a force to both feet differently according to an embodiment of the present disclosure; The control unit receives information related to the force applied by the user's left foot to the footrest and information related to the force applied by the user's right foot to the footrest from a plurality of sensors arranged to measure the force applied to the footrest by each of the user's left and right feet and output it to the display. Through the first operation 510 and the second operation 560 , when the force of the left foot and the right foot are different from each other, the user may receive a feedback related thereto.

The first operation 510 represents an example in which information related to the force applied to the footrest by the left foot and the right foot is provided through the display in a state in which the user starts exercising. In an embodiment, the force that the user's foot applies to the footrest may be displayed on the display in the form of a bar graph. As illustrated, the force applied by the user's left foot to the footrest may be displayed as a bar graph 522 on the first area 520 of the display. Similarly, the force that the user's right foot applies to the footrest may be displayed as a bar graph 532 on the second area 530 of the display. Here, the heights of the bar graphs 522 and 532 may be determined based on a force applied by the user's foot to the footrest in real time and a load value set by the user to perform the exercise.

In one embodiment, when the difference between the force applied by the user's left foot to the footrest and the force applied by the user's right foot to the footrest exceeds a second preset threshold (eg, 5 kg, 5%, etc.), related A warning message may be output on the display. In the first operation 510 , the difference between the force applied by the user's left foot to the footrest and the force applied by the user's right foot to the footrest does not exceed a preset second threshold, and thus a warning message may not be displayed.

In one embodiment, the force applied by the user's left foot to the footrest and the force applied by the user's right foot to the footrest may be numerically displayed on the display. As illustrated, numerical information 540 and 566 related to the force applied by the user's left foot to the footrest may be displayed on the first region 520 . Similarly, numerical information 550 and 568 related to the force applied by the user's right foot to the footrest may be displayed on the second region 530 . The force applied by the user's foot to the footrest may be provided in a form recognizable by the user through other senses such as a notification sound in addition to visual information such as bar graphs and numerical information.

The second operation 560 illustrates an example in which a warning message is displayed when the difference between the force applied by the user's left foot to the footrest and the force applied by the user's right foot to the footrest exceeds a preset second threshold. Here, the preset second threshold may be directly set by the user, recommended by the controller to the user, or automatically determined based on the type of exercise the user performs. As shown, the warning message may be provided in a form in which the bar graph 562 associated with the left foot and the bar graph 564 associated with the right foot are displayed in different colors. The warning display may be provided as a difference in height and color of the bar graph, but is not limited thereto. For example, the warning indication may be provided in such a way that the background of any visual object, symbol, text, etc., the type of pattern or the size of the pattern, etc. are changed, and may be recognized by the user by senses other than sight, such as a warning sound. It may be provided in any form.

Through this configuration, when the user applies different force to both feet, the user may receive a warning message related thereto in various forms to easily adjust the same force to be applied to both feet. Accordingly, it is possible to prevent the user's lower body from being unbalanced.

6 is a diagram illustrating an example in which information related to a user's exercise is comprehensively output on a display according to an embodiment of the present disclosure. Such information may be displayed on the display of the smart leg press machine, or may be displayed on the display of the user terminal (eg, smart phone) connected to the smart leg press machine.

In an embodiment, the display may display information related to the size of the load and set values for the characteristics of various loads in the first area 610 . The size of the load may be directly set by the user or may be a value automatically set by the control unit as a user-customized value. Load characteristics can include load viscous force, load elastic force, and load inertia force. Among the four stages, low (25%), middle (50%), high (75%), and very high (100%), respectively. can be set to one. Alternatively, each of the characteristics of the load may be set in a more granular step, or in a more simplified step, such as two or three steps.

Here, the viscous force of the load indicates a characteristic of the load that allows the user to feel a higher sense of weight as the user tries to perform the exercise at a higher speed. The elastic force of the load indicates the characteristic of the load that allows the user to feel a higher sense of weight as the distance between the seat and the footrest increases. The inertia force of the load indicates the characteristics of the load so that the user feels a higher weight when the same specific force is applied to the footrest in a stationary state than when a force of a specific size is applied to the footrest in a dynamic state. In this case, more than one type of load may be applied to the seat at the same time.

A detailed method for generating the above load will be described later. In FIG. 6 , the load value that the user wants to use for exercise is displayed as a number (eg, 50 kg), and set values for various load characteristics are displayed in graphs and characters, but the present invention is not limited thereto, and the above information is provided in various forms. It can be displayed as a number, symbol, character, graph, etc.

In one embodiment, the display may include the number of workout sets the user is currently performing, the total number of workout sets the user has specified to perform, the number of workout sets the user is currently performing within each set, and the number of workout sets the user has specified to perform within each set. Information such as a total number of workouts and a recommended value of a time for maintaining tension may be displayed on the second area 620 . Here, the time for maintaining the tension (TUT) may mean a time during which the user continues one exercise. The time to maintain tension can be entered by the user directly, or the user's training purpose (power improvement, explosive strength improvement, maximum strength improvement, muscle hypertrophy, muscular endurance improvement, etc.), user's exercise-related information (user's weight, body fat mass, skeletal muscle) amount, etc.) may be automatically determined. The controller may recognize the exercise as one exercise only when the user performs one exercise for a time longer than or equal to the time the user maintains the tension. In addition, it may be provided as audiovisual data such as a graph whether the exercise was performed for a time longer than the time to maintain the tension for every number of exercises.

In an embodiment, the display may display the third area 630 of information related to the exercise length for every number of exercise times of the user. The controller may receive the user's initial exercise length, and calculate the exercise recognition distance 632 based on the initial exercise length. For example, the exercise recognition distance 632 may be 65% of the initial exercise length.

In one embodiment, when the user pushes the footrest more than the movement recognition distance 632, it may be recognized as one exercise. The display may display whether or not the user has pushed a distance greater than or equal to the exercise recognition distance 632 for every number of exercises as visual data such as a graph. For example, the display may display the exercise distance for every number of exercises in various ways, such as a bar graph, a line graph, and a pie graph.

In one embodiment, information related to the above-described position of the user's left foot, the position of the user's right foot, the force applied by the user's left foot to the footrest, and the force applied by the user's right foot to the footrest may be displayed in the fourth area 640 . have. The user's exercise-related information that can be output on the display is not limited to the illustrated example, and may include a set value related to an exercise input by the user or a value calculated according to the user's exercise performance and related visual data. can For example, information such as the maximum force/average force with which the user pushes the footrest for every exercise cycle may be displayed on the display.

7 is a block diagram showing a detailed configuration of a smart leg press machine according to an embodiment of the present disclosure. As shown, the smart leg press machine has an input/output device 710, a communication device 720, a control unit 730, a motor (not shown), an electro-hydraulic actuator 740, a series elastic actuator 750 and a force action connection unit. (760).

The input/output device 710 may include a series elastic actuator encoder 712 and an electro-hydraulic actuator encoder 714 . The input/output device 710 may be configured to transmit operation data/real-time position data of the electro-hydraulic actuator 740 and the serial elastic actuator 750 to the controller 730 . In addition, the input/output device 710 may include a touch panel, a keypad, a keyboard, and the like. A user may select and set an appropriate operation mode according to an exercise plan by using the input/output device 710 . In this case, in each operation mode, the control operation may be finely adjusted by inputting additional control factors. The input/output device 710 may be connected to communicate with the controller 730 .

The communication device 720 may be configured to transmit/receive various information (eg, user information and exercise information data) to and from the controller 730 . Additionally, the communication device 720 may provide a configuration or function for communicating with a user's mobile phone, tablet, or other system (eg, a separate cloud system, etc.) through a network.

The controller 730 may include a driving force controller 732 , an exercise force controller 734 , and a content controller 736 . The controller 730 may be configured to control the entire driving-related algorithm in real time. The control unit 730 may be configured in various forms in the form of an electric circuit, a circuit board, an integrated circuit chip, software, firmware, etc. in order to perform arithmetic processing, storage and control functions, and the like.

The control unit 730 may be configured such that the motor and the electro-hydraulic actuator 740 generate a load based on the kinetic force and the driving force transmitted to the series elastic actuator 750 . Specifically, the control unit 730 calculates the mutual force due to the kinetic force and the driving force by using the displacement change of the plurality of elastic bodies included in the series elastic actuator 750, and based on the calculated force, the motor and the electro-hydraulic actuator 740 ) to create a load.

In the storage device (memory) of the controller 730, control models according to various operation modes may be stored in advance. The user may set the operation mode and the control model with the input/output device 710 and additionally input values of factors for detailed adjustment of each operation mode to appropriately control the motor and the electro-hydraulic actuator 740 . In an embodiment, the user may prepare an exercise plan in advance upon receiving advice from an exercise instructor or the like, set an operation mode accordingly, and input a command to the control unit 730 through the input/output device 710 . At this time, the user determines whether to perform the basic type of the set operation mode as it is or whether to further adjust the set operation mode in detail, and then adds values of related factors to the control unit 730 when the set operation mode is further adjusted in detail can be entered as

Accordingly, the driving force control unit 732 may receive the user's input value, calculate it, and then cause the motor and the electro-hydraulic actuator 740 to generate a load according to a pre-stored control model. At this time, a displacement change of the plurality of elastic bodies included in the series elastic actuator 750 may be generated, and the measured displacement change result of the plurality of elastic bodies may be transmitted to the driving force controller 732 . Accordingly, the driving force control unit 732 calculates the mutual force Fh acting on the series elastic actuator 750 by using the displacements of the plurality of elastic bodies. The mutual force Fh may be expressed by an equation using displacement values of a plurality of elastic bodies as a variable, and the driving force control unit 732 calculates the mutual force Fh based on the equation.

Also, the exercise force control unit 734 sets an admittance model based on the calculated Fh. As shown in [Equation 1] below, the admittance model I(s) may be established including a plurality of factors. That is, the admittance model I(s) is established using virtual impedance factors M, B, and K. The values of M, B, and K are predefined according to the control model, or values of M, B, and K The user may input at least one of them to the exercise force control unit 734 through the input/output device 710 . The exercise force control unit 734 may control the electro-hydraulic actuator 740 to generate an appropriate exercise load according to values of specified or input factors.

In [Equation 1], the M factor means an imaginary mass, and when the value is increased, the effect on the inertial force increases. Factor B means virtual damping, and when the value is increased, the effect on the viscous force increases. The K factor means an imaginary spring, and when the value is increased, the effect on the elastic force increases. The motion force control unit 734 may perform a control operation using the admittance model I(s) of [Equation 1]. Specifically, the motion force control unit 734 sets the admittance model I(s) based on the mutual force Fh, and drives the motor and the electro-hydraulic actuator 740 to generate an appropriate load. In this case, the generated load may act in relation to each of the inertial force, the viscous force, and the elastic force, and may act in relation to the combined force of at least two of the inertial force, the viscous force, and the elastic force.

The smart leg press machine according to an embodiment may further include a body detection sensor capable of measuring the user's body state. The body sensor may measure a user's heart rate, body temperature, etc., for example, and an infrared sensor, a camera sensor, etc. may be applied. At this time, when it is determined that the user's body state value measured through the body sensor is unreasonable to the user, the content control unit 736 limits the driving force through the torque controller to lower the load to be applied to the seat, thereby preventing injury to the user. can be prevented in advance. For example, when the heart rate measured by the body sensor exceeds a preset heart rate (limit heart rate), the content controller 736 may limit the driving force to a first set value or less. Here, the set heart rate and the first set value may be stored by a user input in advance through the input/output device 710 , and the first set value is a value smaller than the load generated by the motor and the electro-hydraulic actuator 740 . It is preferable to have And, when the change value of the exercise force reaches the second set value (for example, when the user's force is rapidly changed, the user's power is lost, etc.), the content controller 736 sets the driving force to a third setting through the torque controller. value can be limited.

In addition, the content controller 736 may control the load value in order to measure the maximum load value 1RM that the user can perform one exercise. For example, the control unit causes the maximum load that can be applied to the seat to be applied to the seat while the user applies a force to the footrest, and then gradually reduces the size of the load, so that the seat moves as the user pushes the footrest. It may be configured to recognize the load value at the time of starting to win as the maximum load value (1RM) that the user can perform one exercise.

The electro-hydraulic actuator 740 may be connected to the motor and configured to amplify an initial load generated from the motor to generate a load to be applied to the seat. The electro-hydraulic actuator 740 generates a load to be applied to the entire force action connection unit 760 , and may be configured to be operated by hydraulic pressure while being controlled by the control unit 730 . According to one embodiment, the electro-hydraulic actuator 740 may include a hydraulic pump and a hydraulic cylinder, and the control unit 730 controls the hydraulic pump or adjusts the hydraulic pressure entering the hydraulic cylinder from the hydraulic pump to control the load of the hydraulic cylinder. You can control movement.

The series elastic actuator 750 is connected to the electro-hydraulic actuator 740 and includes a plurality of elastic bodies to receive a kinetic force applied to the force action connection part 760 , and a driving force as a load generated by the electro-hydraulic actuator 740 . It may be configured to receive a change in the displacement of the elastic body. Through this, the series elastic actuator 750 may be configured to detect a time when the user starts pushing the footrest or when the user finishes pushing the footrest. The plurality of elastic bodies may be configured to have different lengths or elastic moduli according to the size of the maximum load to be generated.

In an embodiment, the smart leg press machine may further include a second sensor module configured to detect movement of the seat to measure the length of movement. For example, the second sensor module may be configured to detect the movement of the series elastic actuator 750 , and calculate the movement length of the sheet based on the movement length of the series elastic actuator 750 . The controller 730 may display the exercise length for each exercise number of the user on the display. For example, the controller 730 may calculate the user's initial exercise length using the second sensor module and determine the exercise recognition distance based on the initial exercise length. When the user pushes the sheet more than the movement recognition distance, it is recognized as a one-time exercise, and the control unit 730 displays on the display whether the user pushed the sheet to a distance greater than the movement recognition distance for every number of movements as visual data such as a graph. can

The force acting connection 760 may be configured to transmit a load generated by the motor, the electro-hydraulic actuator 740 and the series elastic actuator 750 to the user. The force acting connection 760 may include a load distribution member and a cable, and may include a fixed pulley and/or a movable pulley.

8 is a flowchart illustrating a method 800 in which a controller provides information related to an appropriate load and exercise to a user according to an embodiment of the present disclosure. Method 800 may be performed by a controller. As shown, in step S810, the control unit may receive a user input. Here, the user input is the size of the load to be applied to the seat, the viscous force of the load, the elastic force of the load, the inertial force of the load, the type of exercise the user wants to perform, the number of exercise sets, the number of exercises in the set, the first threshold, the second threshold and the like, but are not limited thereto.

In operation S820, the controller may control the load generator based on the received user input. In one embodiment, the control unit receives and calculates input values related to the size value of the load input by the user, the viscous force of the load, the elastic force of the load, and the inertial force of the load, and then operates the motor and the electro-hydraulic actuator according to the pre-stored control model. can be controlled Additionally, the control unit may receive information related to a time when the user starts pushing the footrest from the electro-hydraulic actuator, and control the motor and the electro-hydraulic actuator based on the received information.

In step S830, the controller may receive information from the sensor module. In an embodiment, the information received from the sensor module may include, but is not limited to, information related to the position of the user's foot, information related to the force applied by the user's foot to the footrest, and movement information of the footrest. In addition, the controller may receive information related to a time when the user starts pushing the footrest and information related to a time when the user ends pushing the footrest from the sensor module.

In step S840, the controller may display information related to exercise on the display based on the information received from the sensor module. In an embodiment, the controller may display information about the position of the user's foot and the force applied to the footrest on the display. Additionally, when the distance between the position of the user's feet and the predetermined position exceeds the first threshold, or when the difference in force applied by both feet of the user to the footrest exceeds the second threshold, a warning indication related to the above may be displayed on the display. can

The above-described method may be implemented as computer-readable codes on a computer-readable recording medium. The recording medium may continuously store a program executable by a computer, or may be temporarily stored for execution or download. In addition, the medium may be various recording means or storage means in the form of a single or several hardware combined, it is not limited to a medium directly connected to any computer system, and may exist distributed on a network. Examples of the medium include a hard disk, a magnetic medium such as a floppy disk and a magnetic tape, an optical recording medium such as CD-ROM and DVD, a magneto-optical medium such as a floppy disk, and those configured to store program instructions, including ROM, RAM, flash memory, and the like. In addition, examples of other media include recording media or storage media managed by an app store that distributes applications, sites that supply or distribute various other software, and servers.

The method, operation, or techniques of this disclosure may be implemented by various means. For example, these techniques may be implemented in hardware, firmware, software, or a combination thereof. Those of ordinary skill in the art will appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally 7 in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementations should not be interpreted as causing a departure from the scope of the present disclosure.

In a hardware implementation, the processing units used to perform the techniques include one or more ASICs, DSPs, digital signal processing devices (DSPDs), programmable logic devices (PLDs). ), field programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, electronic devices, and other electronic units designed to perform the functions described in this disclosure. , a computer, or a combination thereof.

Accordingly, the various illustrative logic blocks, modules, and circuits described in connection with this disclosure are suitable for use in general purpose processors, DSPs, ASICs, FPGAs or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or the present disclosure. It may be implemented or performed in any combination of those designed to perform the functions described in A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other configuration.

In firmware and/or software implementations, the techniques may include random access memory (RAM), read-only memory (ROM), non-volatile random access memory (NVRAM), PROM ( on computer readable media such as programmable read-only memory), erasable programmable read-only memory (EPROM), electrically erasable PROM (EEPROM), flash memory, compact disc (CD), magnetic or optical data storage devices, etc. It may be implemented as stored instructions. The instructions may be executable by one or more processors, and may cause the processor(s) to perform certain aspects of the functionality described in this disclosure.

If implemented in software, the techniques may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. Storage media may be any available media that can be accessed by a computer. By way of non-limiting example, such computer readable medium may contain RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or desired program code in the form of instructions or data structures. may include any other medium that can be used for transport or storage to a computer and can be accessed by a computer. Also, any connection is properly termed a computer-readable medium.

For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, wireless, and microwave, the coaxial cable , fiber optic cable, twisted pair, digital subscriber line, or wireless technologies such as infrared, radio, and microwave are included within the definition of medium. As used herein, disk and disk include CD, laser disk, optical disk, digital versatile disk (DVD), floppy disk, and Blu-ray disk, where disks are usually magnetic Data is reproduced optically, while discs optically reproduce data using a laser. Combinations of the above should also be included within the scope of computer-readable media.

A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium may be coupled to the processor such that the processor can read information from, or write information to, the storage medium. Alternatively, the storage medium may be integrated into the processor. The processor and storage medium may reside within the ASIC. The ASIC may exist in the user terminal. Alternatively, the processor and the storage medium may exist as separate components in the user terminal.

Although the embodiments described above have been described utilizing aspects of the presently disclosed subject matter in one or more standalone computer systems, the present disclosure is not so limited and may be implemented in connection with any computing environment, such as a network or distributed computing environment. . Still further, aspects of the subject matter in this disclosure may be implemented in a plurality of processing chips or devices, and storage may be similarly affected across the plurality of devices. Such devices may include PCs, network servers, and portable devices.

Although the present disclosure has been described in connection with some embodiments herein, various modifications and changes may be made without departing from the scope of the present disclosure that can be understood by those skilled in the art to which the present disclosure pertains. Further, such modifications and variations are intended to fall within the scope of the claims appended hereto.

110: user 120: smart leg press machine
122: footrest 124: display
126: exercise related information displayed on the display

Claims (12)

As a smart leg press machine,
a seat configured to allow a user to sit;
a frame provided with a first guide for guiding the movement of the sheet;
a footrest supported by the frame;
a first sensor module configured to sense a force applied to the footrest;
a second sensor module configured to detect the movement of the footrest;
a display configured to receive a user input and output information related to exercise; and
a control unit configured to control operation of the display
including,
The first sensor module,
a plurality of sensors arranged to measure the position of each of the user's left and right feet on the scaffold and the force each of the user's left and right feet applies to the scaffold;
The control unit is
receiving information related to the location of the user's left foot and information related to the location of the user's right foot from the plurality of sensors;
Receive information related to the force applied to the scaffold by the user's left foot and information related to the force applied by the user's right foot to the scaffold from the plurality of sensors,
When the distance between the position of the user's left foot and the first predetermined position exceeds a preset first threshold, output a first warning indication to the display,
When the distance between the position of the user's right foot and the second predetermined position exceeds the first preset threshold, output a second warning indication to the display;
When a difference between the force applied by the user's left foot to the footrest and the force applied by the user's right foot to the footrest exceeds a preset second threshold, a third warning indication is output to the display;
Receive the user's initial exercise length from the second sensor module,
Calculate the exercise recognition distance based on the initial exercise length,
When the user pushes the footrest more than the movement recognition distance, it is further configured to be recognized as a one-time movement,
The first predetermined position, the predetermined second position, the first threshold and the second threshold change according to the type of exercise selected by the user, a smart leg press machine.
According to claim 1,
The control unit is
Receiving information related to the force applied to the footrest from the first sensor module,
A smart leg press machine, further configured to output the force applied to the footrest to the display in real time.
According to claim 1,
The control unit is
outputting information related to the position of the user's left foot to a first area of the display;
The smart leg press machine, further configured to output information related to the position of the user's right foot on the second area of the display.
delete delete 4. The method of claim 3,
The control unit is
The first area of the display displays the position of the user's left foot using a first visual object,
The second area of the display displays the position of the user's right foot using a second visual object,
the first warning indication is provided to the user as a color change of the first visual object;
and the second warning indication is provided to the user as a color change of the second visual object.
According to claim 1,
The control unit is
outputting information related to the force applied by the user's left foot to the footrest to the first area of the display;
The smart leg press machine, further configured to output information related to the force applied by the user's right foot to the footrest on the second area of the display.
delete 8. The method of claim 7,
The first area of the display displays the force applied to the footrest by the user's left foot as a bar graph,
The second area of the display displays the force applied by the user's right foot to the footrest in a bar graph,
When a difference between the force applied by the user's left foot to the footrest and the force applied by the user's right foot to the footrest exceeds a preset second threshold, the first area and the second area are displayed in different colors A smart leg press machine.
According to claim 1,
A load generating unit that generates a load to be applied to the sheet
further comprising,
The load generating unit,
a motor that generates an initial load;
an electro-hydraulic actuator connected to the motor and configured to amplify the initial load to generate a load to be applied to the seat; and
A series elastic actuator connected to the electro-hydraulic actuator and comprising a plurality of elastic bodies configured to sense when the user starts pushing the footrest.
including,
The control unit is
receiving a first user input associated with a magnitude of a load to be applied to the seat from the user;
receiving information from the electro-hydraulic actuator when the user starts pushing the footrest;
The smart leg press machine, further configured to control the motor and the electro-hydraulic actuator based on the information related to the first user input and the time point.
11. The method of claim 10,
The control unit is
Receive a second user input associated with a viscous force, an elastic force, and an inertial force of a load to be applied to the seat generated by the load generating unit from the user,
The smart leg press machine, further configured to control the motor and the electro-hydraulic actuator based on the information related to the first user input, the second user input, and the time point.
delete

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