Billiards practice device for improving strength and accurate follow strokes based Artificial Intelligence

Abstract

The present invention is a billiards stroke training device capable of improving a user's stroke skills by developing muscle strength to perform a consistent follow-through stroke by sufficiently pushing the cue stick, enhancing the accuracy and consistency of the stroke, and providing feedback by analyzing the user's stroke behavior using AI, as well as comparing it with desirable stroke behavior. In particular, this invention relates to a billiards practice device for muscle strengthening and accurate follow strokes that utilizes the repulsive force of magnets and the elastic force of springs to provide a gradual resistance sensation during a stroke and allows the cue stick to naturally return to its original position when returning, thereby enabling muscle strengthening and accurate, natural follow stroke training for billiards players, as well as supporting various stroke training modes through a stroke length (or force) adjustment function to increase the user's training efficiency. Furthermore, the present invention relates to a billiards practice device for muscle strength enhancement and accurate follow-stroke, which precisely measures the movement time data of a magnet through a plurality of Hall sensors, wirelessly transmits this data to a smartphone via a microcontroller (ESP32), and analyzes the speed, acceleration, and consistency of the stroke based on AI in a smartphone application to provide quantitative and personalized feedback to the user, thereby enabling the user to objectively understand their stroke and achieve muscle strength improvement and accurate follow-stroke correction through efficient training, and to receive an advanced training experience that goes beyond the limitations of existing devices at a low cost.

Description

Technology Field

[0001] The present invention relates to a billiards practice device, and more specifically, to a billiards practice device for a follow stroke that allows for consistent follow strokes by sufficiently pushing a billiards cue stick.

[0002] In particular, the present invention relates to a billiards practice device for muscle strengthening and accurate follow strokes, which utilizes the repulsive force of a magnet and the elastic force of a spring to provide a gradual resistance sensation during a stroke and allows the cue stick to naturally return to its original position when returning, thereby enabling muscle strengthening of a billiards player and training for an accurate and natural follow stroke.

[0003] Furthermore, the present invention relates to a billiards practice device for muscle strength enhancement and accurate follow-through strokes that can increase the user's training efficiency by supporting various stroke training modes through a stroke length (or force) adjustment function.

[0004] Furthermore, the present invention relates to a billiards practice device that enables efficient training and quantitatively improves the user's stroke power, acceleration, and consistency by precisely measuring stroke data through a Hall sensor and a microcontroller (ESP32, etc.) and providing AI-based real-time analysis and customized feedback in conjunction with a smartphone app. Background Technology

[0005] Billiards is a game in which players compete for points by hitting hard balls with a cue stick on a billiard table covered with a soft cloth.

[0006] In billiards, an accurate follow-through stroke is required to send the ball precisely in the desired direction and speed.

[0007] Accordingly, various billiards practice techniques are being developed, and in particular, many practice devices for more effective strokes are being developed, and examples of this include Patent Documents 1 to 4.

[0008] Patent Document 1 describes a portable billiard stroke practice device comprising: a grip portion that is held by the user's hand, the grip portion including a cut portion with a central portion cut, a front opening portion open to form a locking projection at one end, and a rear opening portion opposite to the front opening portion; a moving member installed to move back and forth inside the grip portion, comprising a protruding moving part having a diameter that can enter and exit the front opening portion of the grip portion, and a simple moving part having a diameter larger than that of the protruding moving part so that entry and exit are controlled by the locking projection; a rear stopper coupled to the rearmost part of the grip portion to prevent the moving member from slipping out of the grip portion; a first elastic member that surrounds the outer surface of the protruding moving part of the moving member, with one end supported by the locking projection and the other end supported by the step boundary surface between the protruding moving part and the simple moving part to mitigate impact during the back and forth movement of the moving member; and a friction member installed in the cut portion of the grip portion and frictionally contacting the moving member by the user's gripping force.

[0009] Patent Document 2 describes a billiard stroke practice device comprising: a cylinder having front and rear intake and exhaust holes; a piston mounted within the cylinder and configured to move between the front and rear intake and exhaust holes; a piston rod connected to the piston and moving in and out of the cylinder; a connecting member connected to the front of the piston rod; and a supporting member rotatably connected to the connecting member, wherein the supporting member is provided with a connecting groove and a concave ring groove at one end connected to the connecting member, and the connecting member includes a screw hole formed from the front of the connecting member to the through hole, which is formed perpendicular to the longitudinal direction so that one end of the supporting member is connected across it, and a hinge screw connected to the screw hole and inserted into the connecting groove.

[0010] Patent Document 3 describes a billiard cue stroke practicer comprising a target formed with a target point on a plate-shaped panel of the same height as a billiard table, a target part formed to allow free movement forward and backward while placed on a rail, and a cue holding part formed at a distance from the target part to allow the cue to be moved in the up-down and left-right directions, wherein two targets are formed on the target part of the panel at a distance of the cue stroke, and holes through which the cue can pass are formed in these targets, so that the cue is moved backward while holding the upper part of the cue with one hand in a holding position on the opposite side of the targets and the butt of the cue with the other hand, and the upper part of the cue passes through the holes of the targets, wherein the targets are configured to be mounted on mounting brackets fixed to the front and rear of a target moving body that can move on the rail of the panel and restore to its original position, and can be replaced by combining and separating.

[0011] Patent Document 4 is a billiard stroke training device comprising: a driving unit including a linear guide rail and a slider that reciprocates on the guide rail; a connecting rod having one end fixed to the slider, the other end extended in the same direction as the guide rail, and the middle portion supported so as to be slidably supported on a base; a cue gripping unit installed on the other end of the connecting rod that grips the rear end of the handle of the cue stick so that the cue stick extends in the same direction as the connecting rod; and a control unit that controls the movement of the slider according to a pre-entered program, comprising an input unit that inputs movement information for a stroke operation including the movement direction, movement speed, and number of waggles of the cue stick, a storage unit that stores the movement information, and an operating unit that selects one of the movement information stored in the storage unit and moves the slider according to the movement information.

[0012] Although various billiard stroke sequence devices have been developed as described above, most existing billiard stroke practice devices are composed of simple spring-return or slider types, which have the following limitations.

[0013] The first difficulty is implementing gradual changes in force. In other words, it fails to provide a realistic sense of resistance—specifically, the gradual force change required during a stroke in actual billiards—where resistance seems to increase as the cue moves forward.

[0014] Secondly, there is a lack of a natural return mechanism. In other words, the mechanism for the cue to naturally return to its original position after a stroke is inadequate, which limits the practice of the follow-through, a crucial element of an actual billiards stroke.

[0015] Third, there are limitations on stroke length adjustment. Since it is difficult to freely adjust stroke length, the application of various training modes, such as short or long stroke training, is restricted, which hinders users from intensively practicing specific stroke techniques.

[0016] Furthermore, it is inefficient for muscle strengthening and follow-through training. Due to the limitations mentioned above, existing devices are not effective for strengthening the muscles required for billiard strokes or for training accurate and natural follow-throughs. In other words, although the follow-through stroke is a crucial factor in determining the precise direction, speed, and spin of the cue ball in billiards, there has been no device available to practice it effectively.

[0017] In addition to these limitations, existing billiards practice devices failed to provide users with quantitative stroke data and lacked AI-based features to analyze individual stroke patterns and provide personalized feedback, making it difficult to maximize training efficiency. In other words, users found it difficult to obtain objective information regarding how fast and consistent their strokes were and what areas needed improvement. Prior art literature

[0018] Republic of Korea Registered Patent No. 10-1779838 Republic of Korea Registered Patent No. 10-2247880 Republic of Korea Registered Patent No. 10-2264529 Republic of Korea Registered Patent No. 10-1944369 The problem to be solved

[0019] The present invention was developed to solve the problems of the prior art described above, and aims to provide a billiards practice device for a follow stroke that allows for consistent follow strokes by sufficiently pushing the cue stick to make a stroke.

[0020] In particular, the present invention aims to provide a billiards practice device for muscle enhancement and accurate follow stroke training that utilizes the repulsive force of a magnet and the elastic force of a spring to provide a gradual resistance sensation during a stroke and allows the cue stick to naturally return to its original position when returning, thereby enabling muscle strengthening of a billiards player and training for an accurate and natural follow stroke.

[0021] Furthermore, the present invention aims to provide a billiards practice device for muscle strength enhancement and accurate follow-through strokes that can increase the user's training efficiency by supporting various stroke training modes through a stroke length adjustment function.

[0022] Furthermore, the present invention aims to provide a billiards stroke practice device and a training method that can precisely measure a user's stroke data, analyze it based on AI to provide quantitative indicators such as stroke speed, acceleration, and consistency, and maximize training effects through personalized feedback.

[0023] In addition, the purpose is to provide a billiards practice device that enables the use of high-performance AI training functions at a reasonable price by measuring data using an inexpensive sensor (Hall sensor) and a microcontroller (ESP32) without complex, expensive electronic devices, and by providing AI analysis and visualized feedback in conjunction with a user's smartphone app. means of solving the problem

[0024] A billiards practice device for improving muscle strength and accurate follow-through strokes according to the present invention, for solving the above-mentioned purpose, is characterized by comprising: a tubular body having an internal space; a fixed magnet installed at one end of the tubular body; a forward-moving magnet movably installed at the other end of the tubular body and pushed inward by a cue; and a spring installed between the magnets.

[0025] It is preferable that at least one intermediate moving magnet be installed between the above-mentioned fixed magnet and the forward moving magnet.

[0026] It is preferable that a support be installed on the outside of the above tubular body.

[0027] It is preferable that the above-mentioned fixed magnet, forward moving magnet, and intermediate moving magnet are neodymium magnets.

[0028] It is desirable that the above tubular body be composed of an acrylic pipe so that the internal operating status can be visually checked from the outside.

[0029] It is preferable that the above-mentioned fixed magnet is screw-fixed to the tubular body and is movable inside the tubular body so that the stroke length adjustment range is up to 220 mm.

[0030] It is preferable that the above spring has a strength of 0.75 to 0.85 N / mm.

[0031] It is preferable that a holding means be installed at the end corresponding to the cue of the aforementioned forward moving magnet so that the cue does not come into direct contact with the forward moving magnet.

[0032] It is preferable that a focal portion be formed in the above holding means.

[0033] It is preferable to have a speed measuring module including a plurality of Hall sensors installed along the movement path of a forward moving magnet on one side of the above-mentioned tubular body; a controller that receives, processes, and transmits movement time information of the forward moving magnet from the speed measuring module; and an analysis program that receives data transmitted from the controller, analyzes stroke speed, acceleration, consistency, etc. based on AI, and provides the analysis results to the user as visual and text-based feedback.

[0034] It is preferable that the above analysis program be an app installed on a smartphone.

[0035] A method for strengthening arm muscles and practicing accurate follow-through using a billiards practice device is characterized by comprising: a step in which a user pushes a billiards cue to move a forward-moving magnet and completes a stroke while feeling a gradual resistance caused by the repulsive force of the magnet and the elastic force of the spring; and an initialization step in which, when the user releases their hand from the billiards cue, the magnets automatically return to their initial positions by the restoring force of the spring and the repulsive force of the magnet.

[0036] It is preferable to include a speed detection step in which the speed measurement module detects the movement speed of the forward moving magnet during the movement of the forward moving magnet prior to the step of completing the stroke; and an AI feedback receiving step in which, after the initialization step of automatic return, the analysis program analyzes the speed, acceleration, and consistency data of the stroke from the speed of the forward moving magnet detected in the speed detection step and notifies the user of the analysis results.

[0037] The above AI feedback receiving step preferably includes receiving quantitative and qualitative messages regarding the stroke speed-time graph, acceleration distribution, goal achievement rate, and areas for improvement in real time through a smartphone app screen.

[0038] Based on the aforementioned AI feedback, it is desirable to include an additional step of repeated practice by selecting a customized training mode to compensate for individual weaknesses or achieve specific goals. Effects of the invention

[0039] The billiards practice device for improving muscle strength and accurate follow-through strokes according to the present invention utilizes a composite resistance mechanism that employs the repulsive force of a magnet and the elastic force of a spring to implement a gradual resistance sensation similar to that of an actual billiards stroke, thereby providing the effect of enhancing training immersion and providing realistic practice conditions.

[0040] In addition, the present invention generates a gradual resistance through the repulsive force of a spring and a magnet, thereby applying a continuous load to the arm muscles to effectively strengthen the arm muscles. Furthermore, the natural return function enables accurate and smooth follow-through training, which has the effect of improving the stability and accuracy of the stroke.

[0041] In addition, the present invention allows the position of the fixed magnets to be adjusted, thereby controlling the distance between the magnets and the elasticity of the springs, which enables the range of motion to be adjusted and allows for the practice of strokes of various lengths, thus enabling customized practice tailored to the user's skill level and training objectives.

[0042] In addition, the present invention has the effect of helping the user understand the stroke mechanism and correct their posture by constructing a tubular body with a transparent acrylic tube so that the internal operating state can be visually checked.

[0043] In addition, the present invention is composed of a simple and robust structure, which provides excellent durability for long-term use, and has the effect of being usable as commercial training equipment not only by individual users but also in billiard academies and billiard halls.

[0044] In addition, the present invention operates in a mechanical manner without complex electronic devices, which has the effect of minimizing breakdowns and facilitating maintenance.

[0045] Furthermore, the present invention has the effect of precisely measuring key data such as stroke speed and acceleration through a Hall sensor and a microcontroller (ESP32), and by having the AI ​​module of a smartphone app analyze this data, it is possible to quantitatively and objectively evaluate the user's stroke.

[0046] In particular, by providing real-time data on the user's stroke power (speed), acceleration patterns, and consistency indicators based on repetitive training, it is effective in helping users clearly recognize their strengths and weaknesses and establish effective training plans.

[0047] In addition, AI-based personalized feedback can dramatically improve training efficiency by providing training guides optimized for an individual's skills and goals, going beyond simple repetitive training.

[0048] Intuitive visualizations (graphs, charts) provided through smartphone apps have the effect of directly contributing to skill improvement by supporting users to easily understand their stroke trajectories and changes and attempt immediate corrections.

[0049] By utilizing inexpensive Hall sensors and ESP32 modules and leveraging the computing resources of smartphones, it is possible to provide an advanced AI-based training system at a reasonable price without the need for expensive professional equipment, thereby enhancing the product's market competitiveness and expanding accessibility for more users.

[0050] In addition, since training data can be stored on a smartphone and history managed, it is effective in allowing users to continuously track their training performance and gain motivation. Brief explanation of the drawing

[0051] FIG. 1 is a perspective view of an example of a billiards practice device for improving muscle strength and accurate follow-through stroke according to the present invention. FIG. 2 is an exploded perspective view of an example of a billiards practice device for improving muscle strength and accurate follow-through stroke according to the present invention. FIG. 3 is a cross-sectional view of the stroke length adjustment state of a billiards practice device for muscle strength improvement and accurate follow stroke according to the present invention. FIG. 4 is a cross-sectional view of the operating state of a billiards practice device for improving muscle strength and accurate follow-through stroke according to the present invention. FIG. 5 is a diagram of a practice process using a billiards practice device for improving muscle strength and accurate follow-through stroke according to the present invention. FIG. 6 is a process diagram of the operating state of a magnet in a billiards practice device for muscle strength improvement and accurate follow-through stroke according to the present invention. FIG. 7 is a configuration diagram of a system incorporating an analysis algorithm into a billiards practice device for improving muscle strength and accurate follow-through strokes according to the invention. FIG. 8 is an analysis process of an AI-based smartphone analysis program application in a billiards practice device for muscle strength improvement and accurate follow stroke according to the invention. Specific details for implementing the invention

[0052] The present invention can be implemented with various modifications, and specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the invention to specific embodiments, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0053] In describing each drawing, similar reference numerals have been used for similar components. In describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions could obscure the essence of the invention.

[0054] The billiards practice device for muscle strength enhancement and accurate follow stroke according to the present invention utilizes a combination of the repulsive force of a magnet and the elastic force of a spring to provide a gradual resistance sensation during a stroke and implements a natural return to the original position upon cue return, thereby enabling the strengthening of a billiards player's muscles and training for an accurate and natural follow stroke.

[0055] A billiards practice device for improving muscle strength and accurate follow strokes according to the present invention is characterized by comprising, as illustrated in FIGS. 1 to 4, a tubular body (10) having an internal space; a fixed magnet (20) installed at one end of the tubular body; a forward-moving magnet (30) movably installed at the other end of the tubular body and pushed inward by a cue; and a spring (40) installed between the magnets.

[0056] The above tubular body (10) is a tube that guides the magnets (20, 30) and spring (40) installed inside to move in a certain direction. Although a cylindrical shape is shown as an example in the drawing, it may be made of a square, polygonal, or elliptical tube.

[0057] The above tubular body (10) is preferably transparent so that the movement of the various components operating inside can be observed.

[0058] The above tubular body (10) can be made of various materials, but a preferred example is polycarbonate or acrylic, which is a high-strength synthetic resin capable of maintaining transparency.

[0059] The above fixed magnet (20) is a magnet fixed to one end of the tubular body and serves as a reference point where other magnets return and stop during stroke training.

[0060] It is preferable that the above-mentioned fixed magnet (20) be installed so that its fixed position can be changed as shown in FIG. 3.

[0061] A screw thread (21) is formed on the outer surface of the fixed magnet so that the position of the fixed magnet (20) can be varied and fixed inside the tubular body, and a screw thread (11) is also formed on the inner surface of the tubular body to be equivalent to the screw thread, and the fixed magnet moves inward or outward depending on the direction in which the fixed magnet is rotated.

[0062] Of course, a separate fixing means may be installed as a means to variably fix the above-mentioned fixed magnet (20) inside the tubular body.

[0063] The stroke length adjustment range (L) can be adjusted by moving within the tubular body of the fixed magnet (20), and may vary depending on the user's physical condition, but preferably, it is preferably up to 200 mm.

[0064] That is, when practicing short strokes, the fixed magnet can be moved inward as shown in FIG. 3 (a) to reduce the stroke distance, and when practicing long strokes, the fixed magnet can be moved outward as shown in FIG. 3 (b) to increase the stroke distance.

[0065] The above forward moving magnet (30) is a magnet that is pushed by a cue, and as the user moves the cue, it is pushed toward the fixed magnet and exerts a repulsive force with the fixed magnet.

[0066] As mentioned above, the fixed magnet (30) is a magnet that the cue comes into direct contact with, and it may be damaged by frequent contact with the cue. Also, the moving cue may not be able to move accurately to the center of the forward moving magnet.

[0067] Accordingly, it is preferable to further install a holding means (31) at the tip end of the forward moving magnet or the cue.

[0068] The holding means (31) above can be configured in the form of a separator so as not to directly collide with the tip and the magnet, and although it is shown in FIG. 2 as an example installed on a forward moving magnet, it can also be installed detachably on the tip of the cue.

[0069] It is preferable to further form a focal portion (31g) in the above holding means (31).

[0070] During the user's practice, the tip of the billiard cue pushes the forward-moving magnet, but if it does not strike the center accurately, the forward-moving magnet may not move smoothly.

[0071] Accordingly, the above-mentioned focal part (31g) is formed so that the Q can accurately push the center of the forward moving magnet.

[0072] In the drawing, the focus portion (31g) is shown as being formed in the center of the holding means (31) as an example, but the tip can be fitted in the form of a cap, and a magnet can be attached to the front of the cap so that the focus is automatically adjusted to the center accurately.

[0073] In addition, the focal portion (31g) may be configured by forming the center of the holding means convex or concave.

[0074] A spring (40) is installed between the fixed magnet and the forward moving magnet.

[0075] The above-mentioned fixed magnet and forward-moving magnet are installed with like poles facing each other so that a repulsive force acts between them; therefore, when the forward-moving magnet is pushed by a Q, it receives resistance due to the repulsive force between the two magnets.

[0076] However, if composed of only two magnets, the movement distance of the cue is limited depending on the limit of the range of repulsion between the two magnets.

[0077] Accordingly, a spring (40) was installed so that the counter-force of the spring could be applied to the cue, thereby increasing the stroke distance.

[0078] The above spring (40) can be adjusted to a level of 0.75 to 0.85 N / mm to provide appropriate resistance, and a guide to prevent center deviation may be added.

[0079] In addition, at least one intermediate moving magnet (50) is installed between the fixed magnet and the forward moving magnet to increase the repulsion of the magnets.

[0080] That is, the magnets constituting the billiard practice device of the present invention have a limited range of magnetic force influence (e.g., 4 cm), and if the distance between the magnets exceeds the magnetic force range, the magnetic flux drops sharply and they cannot interact.

[0081] Accordingly, multiple additional intermediate moving magnets were installed to adjust the spacing between the magnets.

[0082] For example, if the length of the above tubular body is 70 cm and only a fixed magnet and a forward-moving magnet are installed, the interaction distance between the fixed magnet and the forward-moving magnet is 8 cm, and the distance between the two magnets is too far so that no repulsive force occurs between them.

[0083] Accordingly, two intermediate moving magnets are installed between the two magnets to make the repulsive force acting distance more than 70 cm.

[0084] As shown in FIGS. 1 to 4, a number of intermediate moving magnets (50) may be installed, and they are installed so that the same poles face each other so that a repulsive force acts between neighboring magnets, and springs (40) are installed between the magnets arranged at equal intervals.

[0085] All magnets constituting the billiards practice device for low stroke configured as above must be able to move horizontally within the tubular body, and for this purpose, the magnets may be made in the shape of columns or rings.

[0086] In addition, the above-mentioned fixed magnet, forward moving magnet, and intermediate moving magnet may be made of neodymium magnets or electromagnets.

[0087] When the above tubular body is manufactured with an inner diameter of 28 mm and a length of 700 mm, the preferred specifications of the magnets (20, 30, 50) are a diameter of 20 mm, a thickness of 5 mm to 10 mm, and a magnetic force grade of N52.

[0088] The above intermediate moving magnet can be composed of upper and lower stacked magnets or two thin magnets, thereby providing flexibility in magnetic force control.

[0089] In addition, the billiard practice device of the present invention is used for practice while supported on a billiard table or a predetermined structure, and for this purpose, a support (50) is installed on the outside of the tubular body.

[0090] As shown in FIGS. 1 to 4, the above-mentioned base (50) may be fixedly installed on the outer part of the tubular body or detachably installed on the tubular body.

[0091] That is, the above-mentioned base (50) may be configured to be detachable from the tubular body by forming a fixing hole with a shape similar to the outer surface shape of the tubular body.

[0092] In addition, it is desirable that the billiards practice device of the present invention precisely measures the user's stroke data and analyzes it to provide quantitative indicators such as stroke speed, acceleration, and consistency, thereby enabling the maximization of training effects through personalized feedback, and to this end, it is desirable to enable the device's operating status to be converted into data during the stroke practice process.

[0093] To this end, the billiards practice device of the present invention, as illustrated in FIG. 7, comprises: a speed measurement module (70) including a plurality of Hall sensors (71) installed along the movement path of a forward moving magnet on one side of the tubular body; a controller (80) that receives, processes, and transmits information on the movement time of the forward moving magnet from the speed measurement module; and an analysis program (90) that receives data transmitted from the controller, analyzes stroke speed, acceleration, consistency, etc. based on AI, and provides the analysis results to the user as visual and text-based feedback.

[0094] The above speed measuring module (70) is for detecting the distance and speed of a forward moving magnet that moves as a user pushes a queue, and includes a Hall sensor (71) that detects the magnetic force of the moving magnet. The Hall sensors are installed at regular intervals to detect the moments of movement of the forward moving magnet passing through each Hall sensor, thereby detecting the distance and speed of the forward moving magnet.

[0095] The above Hall sensors (71) are installed in the housing, and 2 to 5 to 7 can be installed.

[0096] The above controller (80) receives the travel time and distance of the forward moving magnet detected by the speed measurement module and transmits them to the analysis program (90).

[0097] The above analysis program (90) is a program that precisely measures the user's stroke data and analyzes it to calculate quantitative indicators such as the speed, acceleration, and consistency of the stroke. Although it is a program that can be installed on a standard computer, it is preferable to configure it as an app installed on a smartphone for ease of portability and use.

[0098] Although synchronization is essential for transmitting and receiving data from the above controller to a smartphone, 'synchronization' for data transmission and reception between the smartphone and the training device can be implemented through the Bluetooth pairing and connection process.

[0099] The billiards practice device is equipped with a microcontroller (MCU), a Bluetooth module, and a status indicator LED, and the analysis program application (app) must be installed on the user's smartphone.

[0100] First, the device registration process begins when the power to the billiards practice device is turned on, the built-in Bluetooth module is activated and starts transmitting its signal (e.g., "Smart_Cue_Trainer_v1") to the surroundings, and at this time, the device's LED blinks rapidly to indicate that it is "waiting for pairing."

[0101] The device search and registration process on the smartphone involves the user navigating to the 'Settings > Bluetooth' menu, finding and selecting "Smart_Cue_Trainer_v1" from the 'Available Devices' list, after which the smartphone and the billiards practice device exchange authentication information to complete pairing.

[0102] This process is similar to registering Bluetooth earphones to a smartphone for the first time, and it only needs to be performed once when using the billiards practice device for the first time.

[0103] To launch the analysis program app, when the user runs the analysis program app (dedicated training app) installed on the smartphone, a 'Connect to Device' button is displayed on the app's initial screen. When the user presses this button, the analysis program app displays whether it is connected to the "Smart_Cue_Trainer_v1" device that is already paired with the smartphone.

[0104] When the Bluetooth module of the billiards practice device accepts the connection request from the analysis program app, a stable data communication channel is opened, and 'synchronization' is completed immediately.

[0105] When the connection is complete, the LED of the billiards practice device stops blinking to indicate the "connection complete" state and switches to a state where it stays on.

[0106] A notification that 'connection complete' or 'ready for measurement' is displayed on the smartphone analysis program app screen as well.

[0107] The real-time data transmission process is a process of transmitting information from a billiards practice device to a smartphone. When the user performs stroke training after synchronization is complete, the Hall sensor and controller installed on the billiards practice device calculate the stroke speed in real time and immediately transmit the calculated data (e.g., speed 2.5 m / s, acceleration pattern, etc.) to a smartphone app via Bluetooth.

[0108] The analysis program app immediately analyzes received data and displays meaningful information (graphs, numbers, voice feedback, etc.) to the user, and all data is automatically saved by date and training mode, allowing past records to be reviewed at any time.

[0109] As mentioned above, when implementing the functions provided by the analysis program app, low-power (BLE, Bluetooth Low Energy) technology is used to reduce battery consumption and enhance compatibility with the latest smartphones.

[0110] The billiards practice device configured as described above can improve muscle strength while practicing the follow-through.

[0111] That is, the billiards practice method for improving muscle strength and accurate follow-through stroke according to the present invention is characterized by comprising: a step in which a user pushes a billiards cue to move a forward-moving magnet and completes a stroke while feeling a gradual resistance generated by the repulsive force of the magnet and the elastic force of the spring; and an initialization step in which, when the user releases their hand from the billiards cue, the magnets automatically return to their initial positions by the restoring force of the spring and the repulsive force of the magnet.

[0112] Referring to Figures 4 and 5, the stroke operation process is described in detail. When the user aims the billiard cue at the center of the forward-moving magnet and starts pushing, the forward-moving magnet moves together with the cue into the inside of the tubular body, that is, toward the fixed magnet.

[0113] At this time, the resistance applied to the cue gradually increases due to the elasticity of the spring and the repulsive force between each magnet.

[0114] When the user pushes the cue as far as possible and the spring is sufficiently compressed (see Fig. 4 (c)), the repulsive force and elastic force become maximum, and when the user pushes the cue backward or releases it, it returns to the initial state as shown in Fig. 5 (a) due to the repulsive force and elastic force.

[0115] In this process, the repositioning process of the magnet is carried out as shown in Fig. 6.

[0116] In other words, when the user finishes pushing the magnet, it begins to return naturally due to the repulsive force between the magnets. At this time, the speed is controlled by internal friction and gravity within the tubular body, and the forward-moving magnet stops at the front end where it aligns with the fixed magnet at the end of the tubular body. By completing the return of the magnet to its initial position, it allows the user to feel not only the muscle force generated by the push but also the final posture and the amount of force required for the cue after finishing the push stroke, thereby transitioning to a ready state for practicing the next stroke in the correct posture.

[0117] In the billiards practice process performed as described above, the hole constituting the speed measurement module before the stroke is completed, that is, during the entire process of the stroke being performed sen Further perform a speed detection step of the forward moving magnet to detect the movement of the forward moving magnet in the west.

[0118] After the initialization step in which the detected forward moving magnet speed is automatically restored, the analysis program analyzes the stroke speed, acceleration, and consistency data from the forward moving magnet speed detected in the speed detection step, and performs an AI feedback receiving step that notifies the user of the analysis results.

[0119] By providing real-time feedback on the training process in this way, the efficiency of billiards practice for accurate follow-through strokes can be maximized.

[0120] The AI-based billiards practice method for improving muscle strength and correcting follow strokes according to the present invention receives electrical signals generated from the Hall sensors into a controller (e.g., ESP32). The controller monitors the signal change of each Hall sensor in real time and measures the exact time it takes for a magnet to pass through each Hall sensor in milliseconds (ms) or microseconds (s).

[0121] The measured time data is wirelessly transmitted to an analysis program app installed on the user's smartphone via a Bluetooth Low Energy (BLE) or Wi-Fi communication module embedded in the controller, and the smartphone analysis program app performs the following AI analysis based on the received data.

[0122] The analysis utilizes the time taken to travel the distance between each Hall sensor to derive from the average speed per section and the maximum speed of the entire stroke Stroke speed analysis Calculate.

[0123] also By analyzing the rate of change in speed, the early, middle, and late stages of the stroke stroke acceleration Analyze the pattern. For example, quantify the change in acceleration from the moment the cue starts pushing the magnet until it reaches maximum speed.

[0124] also The consistency of the strokes is evaluated by statistically analyzing the speed and acceleration data of multiple strokes performed consecutively by the user (e.g., calculating standard deviation and coefficient of variation).

[0125] Furthermore, it generates AI feedback by comparing the user's measurement data with pre-trained (or set) ideal stroke data (speed, acceleration patterns, consistency criteria). In other words, by comparing actual measurements with the reference values, it generates specific and personalized text and visual feedback, such as "Speed ​​is X% short of the target," "Acceleration patterns drop sharply in the later stages," or "Stroke consistency is low. Please practice repeatedly with the same force."

[0126] In addition, the aforementioned analysis program app intuitively displays analyzed AI feedback to the user. For example, it can compare the user's current stroke trajectory with the ideal trajectory through a speed-time graph, or present numerical stroke power scores and consistency scores. Furthermore, it displays training history in a graph, allowing the user to visually check the trend of their skill improvement. Through this, the user can perform effective practice based on objective data regarding their strokes, supplement their weaknesses by selecting customized training modes suggested by the AI ​​(e.g., short stroke power training, smooth acceleration training, etc.), and contribute to the improvement of their overall billiards skills.

[0127] The billiards practice device of the present invention configured as described above provides a gradual sense of resistance to the user by having the increase in repulsive force between magnets and the compressive force of a spring act in parallel, which is similar to the sense of resistance experienced during an actual billiards stroke, thereby enhancing the realism of the training.

[0128] In addition, by adjusting the position of the fixed magnet, training can be performed from short strokes to long strokes, and since the tubular body is made transparent, the movement of the magnet and spring can be intuitively observed during this process, which helps users visually understand internal changes resulting from stroke movements and enhance training effectiveness. Explanation of the symbols

[0129] 10: Tubular body 20: Stationary magnet 21: Screw thread 30: Forward moving magnet 31: Holding means 31g: Focusing part 40: Spring 50: Intermediate moving magnet 60: Stand 70: Speed ​​measurement module 71: Hall sensor 80: Controller 90: Analysis Program

Claims

Claim 1 A tubular body (10) having an internal space formed therein; a fixed magnet (20) installed at one end of the tubular body; a forward moving magnet (30) movably installed at the other end of the tubular body and pushed into the inside of the tubular body by a cue; and at least one intermediate moving magnet (50) installed to be movable in the longitudinal direction of the tubular body (10) between the fixed magnet (20) and the forward moving magnet (30). A billiards practice device for improving muscle strength and accurate follow strokes, comprising: a plurality of springs (40) each installed between adjacent magnets; wherein the fixed magnet (20), the forward moving magnet (30), and the at least one intermediate moving magnet (50) are arranged such that the same poles of the adjacent magnets face each other; as the forward moving magnet (30) moves toward the fixed magnet (20) by the cue, the repulsive force generated by the decrease in the distance between adjacent magnets and the elastic force generated by the compression of the plurality of springs (40) increase together to provide a gradually increasing stroke resistance to the cue; and when the pushing force by the cue is removed, the forward moving magnet (30) and the at least one intermediate moving magnet (50) automatically return to their initial positions by the repulsive force between adjacent magnets and the restoring force of the plurality of springs (40). Claim 2 delete Claim 3 A billiards practice device for improving muscle strength and accurate follow strokes, characterized in that, in claim 1, a support (60) is installed on the outside of the tubular body. Claim 4 A billiards practice device for muscle strength enhancement and accurate follow strokes, characterized in that, in paragraph 3, the fixed magnet, the forward moving magnet, and the intermediate moving magnet are neodymium magnets. Claim 5 A billiards practice device for muscle strength improvement and accurate follow-through strokes, characterized in that, in claim 4, the tubular body is composed of a transparent acrylic pipe, allowing the internal operating state to be visually checked from the outside. Claim 6 A billiards practice device for muscle strength improvement and accurate follow stroke, characterized in that, in claim 5, the fixed magnet is screw-fixed to a tubular body and is movable inside the tubular body, so that the stroke length adjustment range (L) is up to 200 mm. Claim 7 A billiards practice device for muscle strength improvement and accurate follow-through stroke, characterized in that, in claim 6, the spring has a strength of 0.75 to 0.85 N / mm. Claim 8 A billiards practice device for improving muscle strength and accurate follow strokes, characterized in that, in claim 7, a holding means (31) is installed at the end corresponding to the cue of the forward moving magnet so that the cue does not come into direct contact with the forward moving magnet. Claim 9 A billiards practice device for improving muscle strength and accurate follow strokes, characterized in that, in claim 8, a focal part (31g) is formed in the holding means. Claim 10 A billiards practice device for improving muscle strength and accurate follow strokes, characterized in that, in claim 9, it comprises: a speed measuring module (70) including a plurality of Hall sensors (71) installed on one side of the tubular body and installed along the movement path of a forward moving magnet; a controller (80) that receives, processes, and transmits information on the movement time of the forward moving magnet from the speed measuring module; and an analysis program (90) that receives data transmitted from the controller, analyzes stroke speed, acceleration, consistency, etc. based on AI, and provides the analysis results to the user as visual and text-based feedback. Claim 11 A billiards practice device for muscle strength improvement and accurate follow strokes, characterized in that, in item 10, the analysis program is an app installed on a smartphone. Claim 12 A billiards practice method using a billiards practice device according to claim 1, characterized by comprising: a step in which a user pushes a billiards cue to move a forward-moving magnet and completes a stroke while feeling a gradual resistance generated by the repulsive force of the magnet and the elastic force of the spring; and an initialization step in which, when the user releases their hand from the billiards cue, the magnets automatically return to an initial position by the restoring force of the spring and the repulsive force of the magnet. Claim 13 In claim 12, the billiard practice device comprises: a speed measurement module (70) including a plurality of Hall sensors (71) installed on one side of the tubular body and arranged along the movement path of the forward moving magnet; a controller (80) that receives, processes, and transmits movement time information of the forward moving magnet (30) from the speed measurement module (70); and an analysis program (90) that receives and analyzes data transmitted from the controller (80); a speed detection step in which the speed measurement module (70) detects the movement of the forward moving magnet (30) while the step of completing the stroke is performed; and a step in which, after the initialization step, the analysis program (90) analyzes the speed, acceleration, and consistency of the stroke based on the movement information of the forward moving magnet (30) detected in the speed detection step, and provides AI feedback to the user according to the analysis result; characterized by an AI-based billiard practice method for improving muscle strength and correcting follow strokes. Claim 14 An AI-based billiards practice method for muscle strength improvement and follow-up stroke correction, characterized in that, in claim 13, the AI ​​feedback receiving step comprises receiving quantitative and qualitative messages regarding the stroke speed-time graph, acceleration distribution, goal achievement rate, and areas for improvement in real time through a smartphone app screen. Claim 15 An AI-based billiards practice method for improving muscle strength and correcting follow strokes, characterized in that, in claim 13 or 14, it further includes a step of repeatedly practicing by selecting a customized training mode to compensate for an individual's weaknesses or achieve a specific goal based on the AI ​​feedback.

Images