Sensor module and weight training machine including the same

Abstract

A weightlifting exercise machine is disclosed. The disclosed weightlifting exercise machine may include: an exercise body that moves according to a user's weightlifting exercise; a sensor module that detects the movement of the exercise body; and a processor that controls the user interface unit to display a user interface element representing a user's exercise state corresponding to the detected movement on the user interface screen, wherein the sensor module may include: a first laser sensor that irradiates a first laser beam to the weight plate or a component that moves with the weight plate when the weight plate moves to detect a moving distance of the weight plate; and a second laser sensor that irradiates a second laser beam to a configuration that does not move despite the movement of the weight plate when the weight plate moves.

Description

Technical Field

[0001] The present invention relates to a sensor module and a weight training machine including the same. Background Art

[0002] Generally speaking, as living standards improve, people are more and more interested in health, so many people are using various forms of weightlifting machines to enhance their physical strength.

[0003] The weight training machine is provided in various forms according to body parts or use purposes to increase muscle strength, and the weight training machine mainly exercises the upper body and lower body by using hands or feet. Various types of weight training machines are used according to body parts, such as shoulder press machines, bench press machines, abdominal machines, butterfly machines, biceps press machines, etc. to increase muscle strength.

[0004] The weightlifting exercise machine is installed with a plurality of block-shaped weight plates overlapping, and may include a pin structure for selecting a portion of the plurality of weight plates. The user can select the number or weight of the weight plates he wants to lift by using the pin structure. The user can move the selected weight through the exercise structure of the exercise machine to perform exercise.

[0005] However, when exercising with a weight training machine, it is difficult to accurately confirm one's exercise status and to obtain accurate motivation such as exercise goals, and therefore it is difficult to expect improvement in exercise effects. Summary of the invention

[0006] In order to improve the user's exercise effect, a device that can confirm the user's exercise status such as exercise speed and exercise amount during or after the user's exercise can be considered. For this purpose, as an example, a sensor module for measuring the user's exercise status and a user interface unit for displaying information measured by the sensor module can be considered.

[0007] However, when the measurement of such a sensor module is inaccurate, the user's exercise status cannot be accurately displayed, which in turn reduces the user's enthusiasm.

[0008] The present invention provides a sensor module and a weightlifting exercise machine including the same, which can accurately measure to effectively guide a user's weightlifting exercise.

[0009] A weight training machine according to one embodiment comprises:

[0010] an exercise body having a plurality of weight plates;

[0011] a sensor module configured to detect movement of the weight plate;

[0012] a user interface unit that outputs a user interface screen;

[0013] a memory storing at least one instruction; and

[0014] a processor that controls the user interface unit by executing the at least one instruction to display a user interface element representing a user's exercise status corresponding to the detected motion on the user interface screen, wherein

[0015] The sensor module may include: a first laser sensor that irradiates a first laser beam to the weight plate or a component that moves with the weight plate when the weight plate moves to detect the moving distance of the weight plate; and a second laser sensor that irradiates a second laser beam to a component that does not move despite the movement of the weight plate when the weight plate moves.

[0016] The first laser sensor may be arranged to direct the first laser beam to a pin structure used to set a weight of the weight exercise machine.

[0017] The first laser sensor may be arranged to irradiate a first laser beam onto an upper surface of the weight plate.

[0018] The second laser sensor may be mounted on the exercising body.

[0019] The exercise body further includes a frame structure that movably supports the plurality of weight plates, and the second laser sensor may be arranged to irradiate the second laser beam to a fixed area in the frame structure.

[0020] The processor may control the user interface unit to display the user interface element on the user interface screen according to information detected by the first laser sensor based on whether the position of the weight plate moves.

[0021] The processor may determine a compensation coefficient by calculating a change amount of a second detection distance detected by the second laser sensor, and may determine the position of the weight plate by reflecting the determined compensation coefficient to a first detection distance detected by the first laser sensor.

[0022] When the surrounding environmental conditions of the sensor module change, the first detection distance detected by the first laser sensor changes, and the second detection distance detected by the second laser sensor changes. The change rate of the first detection distance of the first laser sensor may be the same as the change rate of the second detection distance of the second laser sensor.

[0023] When the surrounding environmental conditions of the sensor module change, the first detection distance detected by the first laser sensor changes, and the second detection distance detected by the second laser sensor changes. The change in the first detection distance of the first laser sensor may be the same as the change in the second detection distance of the second laser sensor.

[0024] The ambient environmental condition may include an ambient temperature or ambient humidity of the sensor module.

[0025] The first laser sensor and the second laser sensor may have the same specifications.

[0026] The first laser sensor and the second laser sensor may have the same measurement accuracy.

[0027] According to an embodiment, a sensor module, which is used as a sensor module for detecting motion of a measurement target, may include:

[0028] a first laser sensor that irradiates a first laser beam to the measurement target or a component that moves together with the measurement target when the measurement target moves, so as to detect the movement of the measurement target; and

[0029] The second laser sensor irradiates a second laser beam to a component that does not move despite the movement of the measurement target when the measurement target moves.

[0030] A weight training machine according to one embodiment comprises:

[0031] an exercise body having a plurality of weight plates;

[0032] a sensor module configured to detect movement of the weight plate;

[0033] a user interface unit that outputs a user interface screen;

[0034] a memory storing at least one instruction; and

[0035] a processor that controls the user interface unit by executing the at least one instruction to display a user interface element representing a user's exercise status corresponding to the detected motion on the user interface screen, wherein

[0036] The sensor module includes a single laser sensor, wherein

[0037] The laser sensor may include: a first sensing mode in which, when the weight plate moves, a laser beam is irradiated to the weight plate or a component that moves with the weight plate to detect a moving distance of the weight plate; and a second sensing mode in which, when the weight plate moves, a laser beam is irradiated to a component that does not move despite the movement of the weight plate.

[0038] The laser sensor may be rotatably arranged, and a position of the laser beam irradiated when in the first sensing mode may be different from a position of the laser beam irradiated when in the second sensing mode.

[0039] The laser sensor irradiates a laser beam along a constant direction, and the sensor module further includes a reference plate, which can move between an interference position interfering with an irradiation path of the laser beam and a deviation position deviating from the irradiation path of the laser beam, when the reference plate is in the deviation position, the laser sensor can have the first sensing mode, and when the reference plate is in the interference position, the laser sensor can have the second sensing mode.

[0040] The exercise body further includes a frame structure that movably supports the plurality of weight plates and has a fixed area that does not move despite the movement of the weight plates, the laser sensor is arranged to irradiate a laser beam to a pin structure that is used to set the weight of the weightlifting exercise machine, and when the pin structure is removed from the weight plates, the laser sensor irradiates the laser beam to the fixed area, the laser sensor may have the first sensing mode when irradiating the laser beam to the pin structure, and may have the second sensing mode when irradiating the laser beam to the fixed area.

[0041] The distance between the fixed area and the laser sensor is defined as a reference distance, and when the distance detected by the laser sensor corresponds to the reference distance, the processor switches the laser sensor from the first sensing mode to the second sensing mode.

[0042] Other aspects, features and advantages besides those described above will become more apparent from the following drawings, claims and detailed description of the invention.

[0043] Such general and specific aspects may be implemented using a system, a method, a computer program, or any combination of the system, method, and computer program. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a perspective view for describing a weight training machine according to an embodiment.

[0045] Figure 2is a diagram for describing a weight setting structure of a weight training machine according to an embodiment.

[0046] Figure 3 is a block diagram for describing a weight lifting exercise machine according to an embodiment.

[0047] Figure 4 is a diagram for describing an example of a sensor module of a weight training machine according to an embodiment.

[0048] Figure 5 is a diagram for describing the operation of a first laser sensor of a sensor module of a weight lifting exercise machine according to an embodiment.

[0049] Figure 6 is a diagram for describing an example of a sensor module of a weight training machine according to an embodiment.

[0050] Figure 7 is a diagram illustrating a user interface screen output on a user interface unit of a weight lifting exercise machine according to an embodiment.

[0051] Figure 8 is a diagram conceptually showing an example of a sensor module according to an embodiment.

[0052] Fig. 9 : is a graph showing a change in a second detection distance detected by the second laser sensor according to the embodiment.

[0053] Fig.10 is a diagram for describing a result of compensating for a measurement error of a first detection distance by the sensor module according to an embodiment.

[0054] Fig.11 is a block diagram for describing a weight training machine according to another embodiment.

[0055] Fig.12 and Fig.13 is a diagram for describing an example of a sensor module including a single laser sensor.

[0056] Fig.14 and Fig.15 is a diagram for describing another example of a sensor module including a single laser sensor.

[0057] Fig.16 is a diagram for describing another example of a sensor module including a single laser sensor.

[0058] Fig.17 and Fig.18 is a diagram for describing an example of a sensor module including a single laser sensor.

[0059] Fig.19 is a diagram for describing a smart gym environment provided with a weightlifting exercise machine according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0060] In the following, various embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below can be deformed and implemented in various different forms. In order to more clearly describe the features of the embodiments, detailed descriptions of matters known to those of ordinary skill in the art to which the following embodiments belong will be omitted.

[0061] Meanwhile, in this specification, when a component is “connected” to another component, this includes not only the case of “direct connection” but also the case of “having another component connected therebetween”. Furthermore, when a component “includes” another component, this means that another component may be further included, rather than excluding other another component, unless otherwise clearly stated.

[0062] In addition, terms including ordinal numbers such as "first" or "second" used in this specification may be used to describe various components, but the components should not be limited to the terms. The terms are only used to distinguish one component from other components.

[0063] The terms “unit”, “module” and the like described in this specification refer to a unit for processing at least one function or operation, and may be implemented as hardware or software, or as a combination of hardware and software.

[0064] The present embodiment relates to a weightlifting exercise machine and a sensor module used therein, and detailed description of matters known to ordinary technicians in the field to which the following embodiment belongs will be omitted.

[0065] Figure 1 is a perspective view for describing a weight training machine 1 according to an embodiment, Figure 2 1 is a diagram for describing a structure for weight setting of a weight training machine 1 according to an embodiment. Figure 3 is a block diagram for describing a weight training machine 1 according to an embodiment.

[0066] Reference Figures 1 to 3 The weightlifting exercise machine 1 may include an exercise body 2 , a sensor module 100 , a user interface unit 3 , and a processor 4 .

[0067] The exercise body 2 may be an exercise machine that moves according to the user's weightlifting exercise. For example, the exercise body 2 includes a plurality of weight plates 21 and a frame structure 23 that movably supports the plurality of weight plates 21. The frame structure 23 may support the weight plates 21 so that they can move in the direction of gravity and in the opposite direction thereof, such as in the up and down directions.

[0068] Reference Figure 2 , the exercise body 2 may include a pin structure 25 for selecting at least some of the plurality of weight plates 21. The pin structure 25 may be inserted into the pin hole 211 to select the weight plate 21 corresponding to the weight required by the user. The pin hole 211 may be formed by adjacent weight plates 21. However, the arrangement of the pin hole 211 is not limited thereto and may also be varied. For example, the pin hole 211 may be formed in each weight plate 21.

[0069] The pin structure 25 includes an insertion area 251 inserted into the pin hole 211 and a holding area 253 fixed to the insertion area 251. The insertion area 251 of the pin structure 25 may have a shape corresponding to the shape of the pin hole 211. The holding area 253 may include a cylindrical portion 2531 having a constant diameter along the extension direction of the pin structure 25 and an inclined portion 2533 extending from the cylindrical portion 2531 and having different diameters along the extension direction. However, the shape of the holding area 253 is not limited thereto, and may be deformed into various shapes as long as the structure is such that the user inserts the pin structure 25 into the pin hole 211 or pulls it out from the pin hole 211.

[0070] When the insertion area 251 of the pin structure 25 is inserted into the pin hole 211 of any weight plate 21, the weights of the weight plate 21 into which the pin structure 25 is inserted and the weight plate 21 disposed thereon are selected.

[0071] A plurality of weight plates 21 are stacked sequentially in the up-down direction. Each of the plurality of weight plates 21 has a predetermined weight. The weights of the weight plates 21 may be the same or different from each other. As an example, each of the plurality of weight plates 21 weighs 5 kg and may be the same as each other. As another example, some of the plurality of weight plates 21 may be 5 kg, and some of the plurality of weight plates 21 may be 10 kg. In addition, the weights of the plurality of weight plates 21 may be different.

[0072] The frame structure 23 may include a base frame 231 and a pair of guide rails 233 installed in the base frame 231 and extending in the up-down direction to move the plurality of weight plates 21 in the up-down direction. The pair of guide rails 233 may be arranged to pass through the plurality of weight plates 21. The frame structure 23 includes a connection line 235 configured to transmit the force applied by the user to the weight plates 21.

[0073] In the weightlifting exercise machine 1 according to the embodiment, the user moves the weight plate 21 corresponding to the selected weight in the direction opposite to the direction of gravity or in the direction of gravity by applying force to the exercise structure 26. The exercise structure 26 can be implemented in various forms according to the body part to be exercised. Since the form of the exercise structure 26 is well known, its detailed description will be omitted.

[0074] The weightlifting exercise machine 1 according to the embodiment further includes constituent elements for measuring the user's exercise state in such an exercise body 2 and feeding back the result thereof. For example, the weightlifting exercise machine 1 includes a sensor module 100, a user interface unit 3 for outputting a user interface screen, a memory 5 for storing at least one instruction, and a processor 4 for controlling the user interface unit 3.

[0075] The user interface unit 3 may include an input unit for receiving input from a user for operating or setting the exercise machine, and an output unit for displaying information of an exercise state or exercise result, etc. For example, the user interface unit 3 may be in the form of a touch screen, but is not limited thereto.

[0076] The processor 4 can manage information for managing various functions provided by the weightlifting exercise machine 1 or the user's exercise status by executing at least one instruction stored in the memory 5. The user's exercise status may refer to the number or time of the user's exercise, the exercise level, the exercise speed, the trajectory of the user's body movement, etc. The processor 4 may include at least one processing module. For example, it may include at least one of a central processing unit (Central Processing Unit), a microprocessor 4 (microprocessor), a graphics processor 4 (Graphic Processing Unit), an application specific integrated circuit (ASICs), a digital signal processor (DSP, Digital Signal Processor), and a field programmable logic array (FPGAs, Field Programmable Gate Arrays).

[0077] The processor 4 may control other components included in the weight training machine 1 to perform functions corresponding to user input received through the user interface unit 3. The processor 4 may execute instructions, software modules or programs stored in the memory 5, or may read data or files stored in the memory 5, or may store new programs or applications in the memory 5.

[0078] The memory 5 may store at least one instruction. The processor 4 may correspond to an example of a computer capable of executing instructions stored in the memory 5. The memory 5 may store instructions, software modules, or programs. The memory 5 may include at least one of a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), a flash memory, an erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk.

[0079] The user interface (UI) module and the exercise management module may be stored in the memory 5. The user interface module and the exercise management module may be software modules or programs including at least one instruction, and may correspond to parts of other programs. The processor 4 may execute the instruction by calling the user interface module and the exercise management module from the memory 5.

[0080] The user interface module may include a user interface input / output module and a user interface configuration module. The user interface input / output module may confirm user input regarding the user interface screen displayed on the user interface unit 3, and may control the output of the user interface elements generated or changed in the user interface configuration module. The user interface configuration module may generate or change the user interface elements displayed on the user interface unit 3 according to information confirmed by the exercise management module, the user interface unit 3, the sensor module 100, etc.

[0081] The exercise management module may include an exercise process setting module and an exercise status confirmation module. When a user who is to use the weightlifting exercise machine 1 is confirmed, the exercise process setting module may set an exercise process suitable for the user based on information about the user. For example, the exercise process setting module may receive exercise process information from the smart gym server 200 through the communication interface unit 6, and may set an exercise process corresponding to the confirmed user. The exercise status confirmation module may generate the user's exercise status information based on the movement of the exercise machine received through the sensor module 100, and may generate information indicating the progress of the exercise process reflecting the user's exercise status or information indicating the exercise result. The exercise status confirmation module may transmit the information generated by the sensor module 100 to the user interface module, or record it in the memory 5.

[0082] The communication interface unit 6 can perform wired / wireless communication with other devices or networks. To this end, the communication interface unit 6 may include a communication module that supports at least one of various wired / wireless communication methods. For example, it may include a communication module for performing short-range communication such as Wireless Fidelity (Wi-Fi), various types of mobile communications such as 3G, 4G, 5G, or ultra-wideband communication, or a communication module for performing wired communication using a coaxial cable or an optical cable, etc., but is not limited to this and may include various types of communication modules according to the development of communication technology. The communication interface unit 6 can be connected to a device located outside the weightlifting exercise machine 1 to send / receive messages including signals or data. The weightlifting exercise machine 1 can communicate with the smart gym server 200, user terminals such as wearable devices and smartphones, or administrator terminals 300 such as PCs, laptops, smartphones, etc. (refer to Fig.19 ) to perform communication.

[0083] Figure 4 is a diagram for describing an example of a sensor module 100 of a weight training machine 1 according to an embodiment. Figure 5 1 is a diagram for describing the operation of the first laser sensor 110 of the sensor module 100 of the weight training machine 1 according to an embodiment.

[0084] Reference Figures 3 to 5 , the sensor module 100 may be configured to detect a measurement target, for example, a movement of the weight plate 21. For example, the sensor module 100 may include a first laser sensor 110 configured to detect a moving distance of the weight plate 21 when the weight plate 21 moves. The first laser sensor 110 may irradiate the first laser beam L1 to the weight plate 21 or a component moving together with the weight plate 21. For example, the first laser sensor 110 irradiates the first laser beam L1 to the pin structure 25, and receives the first laser beam L1 reflected from the pin structure 25, so that the position of the pin structure 25 may be detected. The position of the weight plate 21 may be detected based on the position of the pin structure 25.

[0085] However, the arrangement and configuration of the first laser sensor 110 is not limited thereto, and may be modified in various forms as long as the arrangement and configuration can directly or indirectly detect the movement of the weight plate 21. As an example, Figure 6 As shown, the first laser sensor 110A may be arranged to irradiate the first laser beam L1 onto the weight plate 21. As another example, although not shown, the first laser sensor 110 may be arranged to detect the connection line 235 (refer to Figure 1 ) moves or converts the angle of a pulley (not shown) in the direction of the connecting line 235 to detect the position of the weight plate 21.

[0086] The sensor module 100 can detect the movement of the weight plate 21 or the operating part contacted by the user's body based on the result detected by the first laser sensor 110, and can obtain sensing data corresponding to the detected movement. The sensing data can be in the form of time, distance, depth, picture, etc.

[0087] Figure 7 is a diagram showing a user interface screen output to the user interface unit 3 of the weight training machine 1 according to an embodiment.

[0088] Reference Figure 3 and Figure 7 According to the configuration, the processor 4 may control the user interface unit 3 by executing at least one instruction stored in the memory 5 to display a user interface element on the user interface screen, the user interface element indicating the user's exercise state corresponding to the movement of the weight lifting exercise machine 1 detected by the sensor module 100. The processor 4 may control the user interface unit 3 to display a second user interface element on the user interface screen together with the user interface element, the second user interface element indicating an exercise guide recommended when exercising using the weight lifting exercise machine 1.

[0089] In this way, the user of the weightlifting exercise machine 1 can recognize the user's exercise status by using the data (or information) displayed on the user interface screen. As a result, the user can perform more effective weightlifting exercises.

[0090] The sensor module 100 may further include a function of detecting a weight setting of the exercising body 2. The processor 4 may control the user interface unit 3 to display information 31 indicating the weight setting of the exercising body 2 detected by the sensor module 100 on the user interface screen.

[0091] Meanwhile, the weightlifting exercise machine 1 according to the embodiment may be exposed to various surrounding environmental conditions. For example, the sensor module 100 of the weightlifting exercise machine 1 may be exposed to various surrounding environmental conditions. As an example, the sensor module 100 of the weightlifting exercise machine 1 may have different surrounding environmental conditions according to seasons, weather, and indoor environments. As another example, the sensor module 100 of the weightlifting exercise machine 1 may have different surrounding environmental conditions according to the state of surrounding components, for example, a printed circuit substrate.

[0092] In such a weightlifting exercise machine 1, when the surrounding environmental conditions of the first laser sensor 110 of the sensor module 100 change, a measurement error may occur. The surrounding environmental conditions may include at least one of the surrounding temperature and the surrounding humidity. The surrounding environmental conditions may include electronic components of the weightlifting exercise machine 1, for example, the state of a printed circuit substrate. For example, when at least one of the surrounding temperature and the surrounding humidity conditions and the electronic components of the weightlifting exercise machine 1 changes, the first detection distance D1 detected by the first laser sensor 110 may change. For example, when the surrounding temperature changes, the first detection distance D1 of the first laser sensor 110 relative to the weight plate 21 located at the same distance may be different. Therefore, according to the change in the surrounding environmental conditions, a measurement error may occur in the first laser sensor 110.

[0093] Such measurement errors may manifest as a decrease in the reliability of the information detected by the sensor module 100. This results in inaccurate feedback on the user's exercise status.

[0094] As a method of improving such a measurement error, a method of removing the influence according to the surrounding environmental conditions from the value detected by the first laser sensor 110 may be considered.

[0095] However, since the first laser sensor 110 is a sensor for detecting the moving weight plate 21, the first detection distance D1 changes in real time according to the movement of the weight plate 21. Since the change amount of the first detection distance D1 detected by the first laser sensor 110 is a state in which the change amount caused by the movement of the weight plate 21 is mixed in addition to the change amount caused by the change of the surrounding environmental conditions, it is difficult to distinguish the change amount caused by the change of the surrounding environmental conditions from the change amount of the first detection distance D1 detected by the first laser sensor 110.

[0096] Figure 8 is a diagram conceptually showing an example of the sensor module 100 according to the embodiment. Fig. 9 is a graph showing a change in the second detection distance D2 detected by the second laser sensor 120 according to the embodiment.

[0097] Reference Figure 8 The sensor module 100 according to the embodiment may further include a second laser sensor 120, which is exposed to the same ambient environmental conditions as the first laser sensor 110. Thus, the sensor module 100 may compensate for the measurement error of the first laser sensor 110 without complicated software design.

[0098] When the weight plates 21 move, the second laser sensor 120 may irradiate the second laser beam L2 to a component that does not move despite the movement of the weight plates 21. For this purpose, as an example, the second laser sensor 120 is mounted to the exercise body 2 to irradiate the second laser beam L2 to a non-moving area of ​​the exercise body 2. For example, the second laser sensor 120 may be arranged to irradiate the second laser beam L2 to a fixed area 2310 in the frame structure 23 that movably supports the plurality of weight plates 21. As another example, although not shown, the second laser sensor 120 may be arranged to irradiate the second laser beam L2 to a fixed area outside the weightlifting exercise machine 1.

[0099] As described above, the second laser sensor 120 may irradiate the second laser beam L2 to the non-moving fixed area 2310. The second laser sensor 120 may be arranged to measure a predetermined reference distance Dr.

[0100] Since the second laser sensor 120 measures the reference distance Dr, if the surrounding environmental conditions are constant, the second detection distance D2 detected by the second laser sensor 120 appears constant. The constantly detected second detection distance D2 may be the reference distance Dr. As another example, the reference distance Dr may be a predetermined distance.

[0101] As the ambient conditions change, the second detection distance D2 detected by the second laser sensor 120 becomes different from the reference distance Dr. The difference between the reference distance Dr and the second detection distance D2 can be used to estimate the amount of change caused by the ambient conditions. In addition, the time point t1 at which the ambient conditions change starts can be estimated.

[0102] The first laser sensor 110 and the second laser sensor 120 may have the same specifications. For example, the first laser sensor 110 and the second laser sensor 120 may have the same measurement accuracy. Therefore, the measurement error of the first laser sensor 110 caused by the change of the surrounding environmental conditions may correspond to the measurement error of the second laser sensor 120 caused by the change of the surrounding environmental conditions.

[0103] For example, the compensation coefficient may be determined by calculating the amount of change in the second detection distance D2 of the second laser sensor 120. Therefore, the position of the weight plate 21 may be determined by reflecting the determined compensation coefficient to the first detection distance D1 of the first laser sensor 110.

[0104] As an example, the change rate of the second detection distance D2 of the second laser sensor 120 may correspond to the change rate of the first detection distance D1 of the first laser sensor 110. For example, the change rate of the second detection distance D2 of the second laser sensor 120 may be the same as the change rate of the first detection distance D1 of the first laser sensor 110. Based on such a change rate of the second detection distance D2, the measurement error of the first detection distance D1 caused by the change of the surrounding environmental conditions may be compensated.

[0105] For example, the position of the weight plate 21 may be determined by considering the rate of change of the second detection distance D2 relative to the first detection distance D1. For example, a compensation coefficient may be determined by calculating the rate of change of the second detection distance D2, and the position of the weight plate 21 may be determined by reflecting the determined compensation coefficient to the first detection distance D1.

[0106] For example, when the ambient temperature of the weight training machine 1 fluctuates by 5 degrees Celsius (° C.), the second detection distance D2 detected by the second laser sensor 120 may change from 500 mm to 450 mm. In this case, the rate of change of the second detection distance D2 may be calculated as -10%. The compensation coefficient for compensating for the measurement error may be determined as 10 / 9 (=100% / (100%-10%)). At this time, when the first detection distance D1 detected by the first laser sensor 110 is 900 mm, the position of the weight plate 21 is determined as 1000 mm (=900 mm×10 / 9) by multiplying the first detection distance D1 by the compensation coefficient.

[0107] As another example, the change amount of the second detection distance D2 of the second laser sensor 120 may correspond to the change amount of the first detection distance D1 of the first laser sensor 110. For example, the change amount of the second detection distance D2 of the second laser sensor 120 may be the same as the change amount of the first detection distance D1 of the first laser sensor 110. Based on such a change amount of the second detection distance D2, the measurement error of the first detection distance D1 caused by the change of the surrounding environmental conditions may be compensated.

[0108] For example, the position of the weight plate 21 may be determined by considering the amount of change of the second detection distance D2 relative to the first detection distance D1. For example, a compensation coefficient may be determined by calculating the amount of change of the second detection distance D2, and the position of the weight plate 21 may be determined by reflecting the determined compensation coefficient to the first detection distance D1.

[0109] For example, when the ambient temperature of the weight training machine 1 fluctuates by 5 degrees Celsius (°C), the second detection distance D2 detected by the second laser sensor 120 may change from 500 mm to 450 mm. In this case, the change in the second detection distance D2 may be calculated as -50 mm. The compensation coefficient for compensating for the measurement error may be determined as a value obtained by multiplying +50 mm or +50 mm by a decimal or integer. For example, the compensation coefficient may be determined as +50 mm. At this time, when the first detection distance D1 detected by the first laser sensor 110 is 900 mm, the position of the weight plate 21 is determined to be 950 mm (=900 mm+50 mm) by adding the compensation coefficient to the first detection distance D1.

[0110] Fig.10 is a diagram for describing a result of compensating for a measurement error of the first detection distance D1 by the sensor module 100 according to the embodiment. Fig.10 (a) represents the first detection distance D1 detected by the first laser sensor 110, Fig.10 (b) represents the second detection distance D2 detected by the second laser sensor 120, Fig.10 (c) shows the position D of the weight plate 21 determined by compensating for the measurement error of the first detection distance D1.

[0111] Reference Fig.10 , from the first time point t1 to the second time point t2, the surrounding environment conditions, for example, the temperature changes, and the changed temperature can be maintained after the second time point t2. Fig.10 (a), the first detection distance D1 detected by the first laser sensor 110 changes at the first time point t1, but it is impossible to distinguish whether the change in the first detection distance D1 is due to a change in the user's exercise method or a change in the surrounding environment conditions. Fig.10 (b), since the second laser sensor 120 is arranged to detect a constant reference distance Dr, the processor can determine from the change in the second detection distance D2 at the first time point t1 that the change in the first detection distance D1 is caused by the change in the surrounding environmental conditions.

[0112] Therefore, the processor can determine the compensation coefficient based on the change amount of the second detection distance D2. Fig.10 As shown in (c), the position D of the weight plate 21 is compensated by reflecting the compensation coefficient to the first detection distance D1. As the surrounding environmental conditions change, the compensation coefficient changes from the first time point t1 to the second time point t2, and as the surrounding environmental conditions maintain the new state, the compensation coefficient can remain unchanged from the second time point t2.

[0113] Meanwhile, in the above-mentioned embodiment, an example is mainly described in which the sensor module 100 includes a plurality of laser sensors 110, 120. However, the sensor module of the weightlifting exercise machine according to the embodiment is not limited thereto, and may be implemented by a single laser sensor.

[0114] Fig.11 is a block diagram for describing a weight training machine according to another embodiment.

[0115] Reference Fig.11 The weightlifting exercise machine according to the embodiment may include an exercise body 2, a sensor module 100A, a user interface unit 3, a memory 5, and a processor 4. In this embodiment, the differences from the above embodiment are mainly described, and the description of the same contents will be omitted.

[0116] The sensor module 100A according to the embodiment may include a single laser sensor 101. Such a laser sensor 101 may include a first sensing mode and a second sensing mode.

[0117] In the first sensing mode, when the weight plate 21 moves, the laser sensor 101 may irradiate the laser beam L to detect the moving distance of the weight plate 21. For example, in the first sensing mode, the laser sensor 101 may irradiate the laser beam L to the weight plate 21 or a configuration that moves with the weight plate 21.

[0118] When the weight plate 21 moves, the second sensing mode can irradiate the laser beam L to a configuration that does not move despite the movement of the weight plate 21. For example, in the second sensing mode, the laser sensor 101 can irradiate the laser beam L to a component or area whose position is fixed regardless of the movement of the weight plate 21.

[0119] Fig.12 and Fig.13 1 is a diagram for describing an example of a sensor module 100A including a single laser sensor 101 .

[0120] Reference Fig.12 and Fig.13 In the sensor module 100A according to the embodiment, the laser sensor 101 may be rotatably configured. As the laser sensor 101 rotates, the irradiation direction of the laser beam L may change.

[0121] In the laser sensor 101 , the direction in which the laser beam L is irradiated when in the first sensing mode may be different from the direction in which the laser beam L is irradiated when in the second sensing mode.

[0122] Reference Fig.12The laser sensor 101 may be arranged to irradiate the laser beam L to the pin structure 25 when in the first sensing mode. The laser sensor 101 may detect the position of the pin structure 25 by receiving the laser beam L reflected from the pin structure 25. The position of the weight plate 21 may be detected based on the position of the pin structure 25.

[0123] However, the arrangement of the laser sensor 101 is not limited thereto, and may be modified into various arrangement forms as long as the arrangement is for irradiating the laser beam L to the weight plate 21 or a configuration that moves together with the weight plate 21 .

[0124] The sensor module 100A can detect the movement of the weight plate 21 or the operating part contacted by the user's body based on the result detected by the laser sensor 101 of the first sensing mode, and can obtain sensing data corresponding to the detected movement. The sensing data can be in the form of time, distance, depth, picture, etc.

[0125] The processor 4 can control the user interface unit 3 by executing at least one instruction stored in the memory 5 to display a user interface element on the user interface screen, wherein the user interface element represents the user's exercise status corresponding to the movement of the weightlifting exercise machine 1 detected by the sensor module 100A.

[0126] Reference Fig.12 and Fig.13 , the laser sensor 101 may move to switch from the first sensing mode to the second sensing mode. For example, the laser sensor 101 may rotate to switch from the first sensing mode to the second sensing mode. The laser sensor 101 may rotate in a counterclockwise direction to switch from the first sensing mode to the second sensing mode. Conversely, the laser sensor 101 may rotate in a clockwise direction to switch from the second sensing mode to the first sensing mode. In the laser sensor 101, the position irradiated by the laser beam L when in the first sensing mode may be different from the position irradiated by the laser beam L when in the second sensing mode. For example, the direction irradiated by the laser beam L when the laser sensor 101 is in the first sensing mode may be different from the direction irradiated by the laser beam L when the laser sensor 101 is in the second sensing mode.

[0127] The processor 4 may periodically rotate the laser sensor 101 so that the laser sensor 101 periodically switches between the first sensing mode and the second sensing mode.

[0128] When in the second sensing mode, the laser sensor 101 may irradiate the laser beam L to the fixed area 2310A of the frame structure 23 or its peripheral parts. When the weight plate 21 moves, the fixed area 2310A may be a part whose position is fixed regardless of the movement of the weight plate 21.

[0129] Since the position of the fixed area 2310A is fixed and the position of the laser sensor 101 when in the second sensing mode remains unchanged, the interval between the fixed area 2310A and the laser sensor 101 in the second sensing mode is constant. When the laser sensor 101 is in the second sensing mode, a predetermined reference distance Dr is measured.

[0130] Therefore, the change amount caused by the surrounding environmental conditions can be estimated according to the difference between the second detection distance D2 detected when the laser sensor 101 is in the second sensing mode and the reference distance Dr.

[0131] The processor 4 can determine the compensation coefficient by calculating the change amount of the second detection distance D2 when the laser sensor 101 is in the second sensing mode. Therefore, the position of the weight plate 21 can be determined by reflecting the determined compensation coefficient to the first detection distance D1 when the laser sensor 101 is in the first sensing mode.

[0132] However, the configuration in which the sensor module 100A realizes a plurality of sensing modes by a single laser sensor 101 is not limited thereto and may also be varied. In the above-described embodiment, rotation is taken as an example of the movement of the laser sensor 101, but the movement of the laser sensor 101 is not limited thereto. For example, although not shown, the laser sensor 101 may be moved in the horizontal direction. In this case, the laser sensor 101 may have a position overlapping with the pin structure 25 in the first sensing mode and a position not overlapping with the pin structure 25 in the second sensing mode.

[0133] Fig.14 and Fig.15 1 is a diagram for describing another example of a sensor module 100A including a single laser sensor 101. Fig.14 and Fig.15 , in the sensor module 100A according to the embodiment, the laser sensor 101 does not rotate, and the absolute position of the fixed area may not be fixed in all axes.

[0134] For example, the laser sensor 101 may irradiate the laser beam L to the weight plate 21 or a component moving together with the weight plate 21 without rotating. For example, the laser sensor 101 may be arranged to irradiate the laser beam L to the pin structure 25.

[0135] The sensor module 100A may further include a reference plate 2310B movable relative to the laser sensor 101. The reference plate 2310B may be movable between an interference position 2311 interfering with the irradiation path of the laser beam L and a deviation position 2312 deviating from the irradiation path of the laser beam L. For example, the reference plate 2310B may be movable in a direction perpendicular to the irradiation direction of the laser beam L of the laser sensor 101.

[0136] When the reference plate 2310B is located at the deviation position 2312, the laser sensor 101 may have a first sensing mode. The sensor module 100A may detect the movement of the weight plate 21 or the operation part contacted by the user's body based on the result detected by the laser sensor 101 in the first sensing mode, and may obtain sensing data corresponding to the detected movement. The sensing data may be in the form of time, distance, depth, picture, etc.

[0137] When the reference plate 2310B is located at the interference position 2311, the laser sensor 101 may have a second sensing mode. When the reference plate 2310B is located at the interference position 2311, the distance between the reference plate 2310B and the laser sensor 101 may be constant. For example, the distance between the reference plate 2310B located at the interference position 2311 and the laser sensor 101 is constant. When the laser sensor 101 is in the second sensing mode, a predetermined reference distance Dr is measured.

[0138] Therefore, the change amount caused by the surrounding environmental conditions can be estimated according to the difference between the second detection distance D2 detected when the laser sensor 101 is in the second sensing mode and the reference distance Dr.

[0139] The processor 4 can determine the compensation coefficient by calculating the change amount of the second detection distance D2 when the laser sensor 101 is in the second sensing mode. Therefore, the position of the weight plate 21 can be determined by reflecting the determined compensation coefficient to the first detection distance D1 when the laser sensor 101 is in the first sensing mode.

[0140] In the above embodiment, as a structure in which the reference plate 2310B is movable relative to the laser sensor 101, an example in which the reference plate 2310B moves in the horizontal direction is mainly described. However, the moving structure of the reference plate 2310B is not limited thereto. Fig.16 As shown, the reference plate 2310B1 may have a structure that can be tilted around a predetermined axis. Therefore, the reference plate 2310B1 may have an interference position 2311 or a deviation position 2312 according to the tilt angle of the reference plate 2310B1.

[0141] Fig.17 and Fig.18 1 is a diagram for describing an example of a sensor module 100A including a single laser sensor 101. Fig.17 and Fig.18 In the weightlifting exercise machine of the embodiment, the exercise body includes a frame structure 23 that movably supports a plurality of weight plates 21. The frame structure 23 may have a fixed area 2310B that does not move although the weight plates 21 move.

[0142] The laser sensor 101 may be arranged to irradiate the laser beam L to the pin structure 25 used to set the weight of the weightlifting exercise machine. When the pin structure 25 is removed from the weight plate 21 , the laser sensor 101 may irradiate the laser beam L to the fixing area 2310B of the frame structure 23 .

[0143] The laser sensor 101 according to the embodiment may have a first sensing mode when irradiating the laser beam L to the pin structure 25 , and have a second sensing mode when irradiating the laser beam L to the fixing area 2310B.

[0144] The pin structure 25 is a component that moves along with the movement of the weight plate 21, but the position of the fixed area 2310B is fixed regardless of the movement of the weight plate 21. The distance between the fixed area 2310B and the laser sensor 101 can be defined as a reference distance Dr.

[0145] When the distance D2 detected by the laser sensor 101 corresponds to the reference distance Dr, the processor 4 may switch the laser sensor 101 from the first sensing mode to the second sensing mode. When the distance D2 detected by the laser sensor 101 does not correspond to the reference distance, the processor 4 may switch the laser sensor 101 from the second sensing mode to the first sensing mode. Thus, each time the user removes the pin structure 25, the sensor module 100A according to the embodiment can compensate for the error by using the second sensing mode.

[0146] Fig.19 is a diagram for describing a smart gym environment provided with the weightlifting exercise machine 1 according to an embodiment of the present disclosure.

[0147] Reference Fig.19 , a plurality of weightlifting exercise machines (weightlifting exercise machine 1A, weightlifting exercise machine 1B, weightlifting exercise machine 1C to weightlifting exercise machine 1N) are connected to the smart gym server 200 through a network. A manager such as a fitness trainer or a person in charge of a smart gym can access the smart gym server 200 through a manager terminal 300.

[0148] When entering and exiting the smart gym, each user USER A, USER B, USER C to USER N who goes to the smart gym to exercise can verify their identity by using a user terminal such as a wearable device or a smart phone, and then enter the smart gym. For example, the user uses near field communication (NFC) or radio frequency identification (RFID) to mark the user terminal to an unmanned terminal such as an automatic service machine located at the entrance of the smart gym, and then enters and exits the gym after member verification. Information about users whose membership has been confirmed can be transmitted from the smart gym server 200 to at least one of the weightlifting exercise machine 1A, weightlifting exercise machine 1B, weightlifting exercise machine 1C to weightlifting exercise machine 1N through the network.

[0149] When a user approaches any one of weight lifting exercise machine 1A, weight lifting exercise machine 1B, weight lifting exercise machine 1C to weight lifting exercise machine 1N and tags the wearable device to the weight lifting exercise machine 1, the weight lifting exercise machine 1 is automatically set to an exercise program customized for the user's ability level and history of exercise performance based on information received from the smart gym server.

[0150] The smart gym server 200 may store user information of a plurality of users, device information of the weight training machine 1A, the weight training machine 1B, the weight training machine 1C to the weight training machine 1N, and information for operating other facilities or a smart gym.

[0151] When a manager such as a fitness trainer registers an exercise program customized for a user in the manager terminal 300, the exercise flow information stored in the smart gym server 200 may be updated. The weightlifting exercise machine 1A, the weightlifting exercise machine 1B, the weightlifting exercise machine 1C to the weightlifting exercise machine 1N may receive the exercise flow information from the smart gym server 200 connected through the network. Meanwhile, in the above-mentioned embodiment, as the exercise body 2, a shoulder press machine for enhancing shoulder strength is taken as an example, but it is not limited thereto and may be variously applied as long as it is an exercise machine for weightlifting exercise.

[0152] Meanwhile, in the sensor module 100 according to the above-described embodiment, an example in which the weight plate 21 of the weight training machine 1 is used as a measurement target is mainly described. However, the applicable target of the sensor module 100 according to the embodiment is not limited thereto, and of course, it can also be applied to other measurement targets other than the weight plate 21. That is, the sensor module 100 of the present disclosure is used to detect the movement of the measurement target, and may include: a first laser sensor 110, which, when the measurement target moves, irradiates a first laser beam L1 to the measurement target or a component moving with the measurement target to measure the movement of the measurement target; and a second laser sensor 120, which, when the measurement target moves, irradiates a second laser beam L2 to a component that does not move despite the movement of the measurement target.

[0153] According to the embodiment of the present invention, it can be implemented in the form of a computer program, which can be executed by various components on a computer, and such a computer program can be recorded in a computer-readable medium. At this time, the medium may include magnetic media such as hard disks, floppy disks and tapes, optical media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, and hardware devices such as read-only memories (ROMs, Read-Only Memory), random access memories (RAMs, Random Access Memory), flash memories, etc. that are specially configured to store and run program instructions. In addition, the medium may include an intangible medium that is implemented in a form that can be transmitted on a network, for example, a medium that can be implemented in a form of software or application programs and in a form that can be transmitted and distributed through a network.

[0154] Meanwhile, the computer program may be specially designed and constructed for the present invention, or may be known and available to those skilled in the art of computer software. Examples of computer programs may include not only machine language codes such as those formed by an assembler, but also high-level language codes that can be executed by a computer by using an interpreter, etc.

[0155] The weightlifting exercise machine and the sensor module used therein according to the embodiment of the present invention can accurately measure to effectively guide the user's weightlifting exercise while reducing the price burden.

[0156] So far, mainly the preferred embodiments thereof have been described. It will be appreciated by those skilled in the art that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered illustrative rather than restrictive. The scope of the present invention is presented in the claims, rather than the foregoing description, and should be interpreted as all differences existing within the scope equivalent to the claims being included in the present invention.

[0157] [Description of Reference Numerals]

[0158] 1: Weightlifting Exercise Machine 2: Exercise Body

[0159] 21: Weight plate 211: Pin hole

[0160] 23: Frame structure 231: Base frame

[0161] 233: Guide rail 235: Connecting wire

[0162] 25: Pin structure 251: Insertion area

[0163] 253: Holding area 2531: Cylindrical part

[0164] 2532: Inclined part 26: Exercise structure

[0165] 3: User interface unit 31: Information indicating weight setting

[0166] 4: Processor 5: Memory

[0167] 6: Communication interface unit 100: Sensor module

[0168] 110: first laser sensor 120: second laser sensor.

Claims

1. A weight lifting exercise machine comprising: an exercise body having a plurality of weight plates; a sensor module configured to detect movement of the weight plate; a user interface unit that outputs a user interface screen; a memory storing at least one instruction; as well as a processor that controls the user interface unit by executing the at least one instruction to display a user interface element representing a user's exercise status corresponding to the detected motion on the user interface screen, wherein The sensor module comprises: a first laser sensor that irradiates a first laser beam to the weight plate or a component that moves together with the weight plate when the weight plate moves, so as to detect a moving distance of the weight plate; and a second laser sensor that, when the weight plate moves, irradiates a second laser beam to a component that does not move despite the movement of the weight plate; Wherein, a compensation coefficient is determined based on a change amount or a change rate of a detection distance detected by the second laser sensor, and a measurement error of the first laser sensor is compensated based on the compensation coefficient.

2. The weight training machine of claim 1, wherein: The first laser sensor is arranged to irradiate the first laser beam to a pin structure used to set the weight of the weight exercise machine.

3. The weight training machine of claim 1, wherein: The first laser sensor is arranged to irradiate a first laser beam onto an upper side of the weight plate.

4. The weight training machine of claim 1, wherein: The second laser sensor is installed on the exercise body.

5. The weight training machine of claim 4, wherein: The exercise body further includes a frame structure that movably supports the plurality of weight plates, The second laser sensor is arranged to irradiate the second laser beam to a fixed area in the frame structure.

6. The weight training machine of claim 1, wherein: The processor controls the user interface unit to display the user interface element on the user interface screen according to information detected by the first laser sensor based on whether the position of the weight plate moves.

7. The weight training machine of claim 6, wherein: The processor determines a compensation coefficient by calculating a change amount of a second detection distance detected by the second laser sensor, And the position of the weight plate is determined by reflecting the determined compensation coefficient to a first detection distance detected by the first laser sensor.

8. The weight training machine of claim 1, wherein: When the surrounding environment conditions of the sensor module change, the first detection distance detected by the first laser sensor changes, and the second detection distance detected by the second laser sensor changes. A rate of change of the first detection distance of the first laser sensor is the same as a rate of change of the second detection distance of the second laser sensor.

9. The weight training machine of claim 1, wherein: When the surrounding environment conditions of the sensor module change, the first detection distance detected by the first laser sensor changes, and the second detection distance detected by the second laser sensor changes. The change amount of the first detection distance of the first laser sensor is the same as the change amount of the second detection distance of the second laser sensor.

10. A weight training machine according to claim 8 or claim 9, wherein: The ambient environmental condition includes the ambient temperature or the ambient humidity of the sensor module.

11. The weight training machine of claim 1, wherein: The first laser sensor and the second laser sensor have the same specifications.

12. The weight training machine of claim 11, wherein: The first laser sensor and the second laser sensor have the same measurement accuracy.

13. A sensor module as a sensor module for detecting movement of a weight plate of a weight lifting exercise machine, comprising: a first laser sensor configured to irradiate a first laser beam to the weight plate or to move with the weight plate when the weight plate moves, so as to measure the movement of the weight plate; as well as a second laser sensor that, when the weight plate moves, irradiates a second laser beam to a configuration that does not move despite the movement of the weight plate; Wherein, a compensation coefficient is determined based on a change amount or a change rate of a detection distance detected by the second laser sensor, and a measurement error of the first laser sensor is compensated based on the compensation coefficient.

14. A weight lifting exercise machine comprising: an exercise body having a plurality of weight plates; a sensor module configured to detect movement of the weight plate; a user interface unit that outputs a user interface screen; a memory storing at least one instruction; as well as a processor that controls the user interface unit by executing the at least one instruction to display a user interface element representing a user's exercise status corresponding to the detected motion on the user interface screen, wherein The sensor module includes a single laser sensor, wherein The laser sensor comprises: a first sensing mode, wherein when the weight plate moves, a laser beam is irradiated to the weight plate or a component moving together with the weight plate to detect a moving distance of the weight plate; and a second sensing mode, wherein, when the weight plate moves, a laser beam is irradiated to a component that does not move despite the movement of the weight plate; Wherein, a compensation coefficient is determined based on a change in the detection distance detected in the second sensing mode, and a measurement error in the first sensing mode is compensated based on the compensation coefficient.

15. The weight exercise machine of claim 14, wherein: The laser sensor is rotatably configured, The position at which the laser beam is irradiated when in the first sensing mode is different from the position at which the laser beam is irradiated when in the second sensing mode.

16. The weight exercise machine of claim 14, wherein: The laser sensor irradiates a laser beam in a constant direction. The sensor module further includes a reference plate that is movable between an interference position interfering with an irradiation path of the laser beam and a deviation position deviating from the irradiation path of the laser beam, When the reference plate is in the offset position, the laser sensor has the first sensing mode, When the reference plate is in the interference position, the laser sensor has the second sensing mode.

17. The weight exercise machine of claim 14, wherein: The exercise body further includes a frame structure that movably supports the plurality of weight plates and has a fixed area that does not move despite the movement of the weight plates, The laser sensor is arranged to shine a laser beam onto a pin structure used to set the weight of the weight training machine, and when the pin structure is removed from the weight plate, the laser sensor shines the laser beam onto the fixing area, The laser sensor has the first sensing mode when irradiating the laser beam to the pin structure, and has the second sensing mode when irradiating the laser beam to the fixing area.

18. The weight exercise machine of claim 17, wherein: The distance between the fixed area and the laser sensor is defined as a reference distance, The processor switches the laser sensor from the first sensing mode to the second sensing mode when the distance detected by the laser sensor corresponds to the reference distance.

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