A device and method for forming a golf putting mat using a permanent magnet preload and an electromagnet variable force superposition type active slope generation control device

Abstract

In order to improve upon the problems associated with conventional golf putter mat devices, where the mat surface is flat or formed with a fixed pattern providing only fixed undulation (=curvature) and fixed slope molded during manufacturing, making it impossible to change once produced, and thus making it impossible or limited to train on S-shaped curves where the break changes in the middle, partially steep slope sections, and local undulation (=curvature) common on actual greens; where the user must physically change the position or support when a mode switch is required, and where attempts at local variation result in a sudden deformation, hardening, or sinking, thereby impairing the fine sense of putting and degrading training quality; and where only simple on / off or simple level control is provided and there is a lack of means to compensate for environmental changes such as temperature, power fluctuations, and gap deviations, resulting in varying outcomes even in the same mode, leading to increased user dissatisfaction and difficulty in standardizing product quality, the invention comprises a golf putter mat body (100), a keypad section (200), a surface layer module (300), a buffer layer module (400), and a flexible By configuring the film layer module (500), electromagnetic induction module (600), lower support layer module (700), and smart control unit (800), the material of the surface layer module can be selectively configured as one of TPU (Thermoplastic Polyurethane), TPE-SEBS (Styrenic Block Copolymer-based Thermoplastic Elastomer), or PU coated fabric (Polyurethane-coated Fabric), thereby providing an optimal rolling sensation according to the purpose of use (precision, tactile, realistic feel) even in the same active slope generation structure; by configuring the flexible film layer module, various active slopes can be immediately realized inside the mat by converting the local tension distribution (T(x,y)), local stiffness (Keff), and local curvature (k) into electromagnetic action while in a fixed state without positional movement, and a golf putter practice environment where the terrain changes like a real green can be provided; and by configuring the electromagnetic induction module, to the flexible film layer module by electromagnetic induction Apply force directly,The purpose is to provide a permanent magnet preload and electromagnet variable force superposition type active slope generating golf putting mat formation control device and method that can implement various course patterns with various active slopes internally even during use and without changing the installation location, and by configuring a smart control unit, can create an atmosphere for advanced training scenarios with complex terrains such as S-brakes, two-stage slopes, and curvature including inflection points, going beyond one-way slopes through 3-point channel control of the front, middle, and rear sections.

Description

Technology Field

[0001] The present invention is applicable to the golf putting training market, indoor golf simulator / screen golf combinations, sports science / data-based putting analysis, rehabilitation and balance training, entertainment / event / store experiences, and educational content / subscription services. More specifically, it relates to a golf putting mat formation control device and method for generating an active slope surface by superimposing a permanent magnet preload and an electromagnet variable force, which can control the formation of an active slope surface on the surface of a golf putting mat by superimposing a permanent magnet preload and an electromagnet variable force. Background Technology

[0003] Conventional golf putter mat devices primarily utilize methods that change the physical shape by forming a surface slope, changing the material, or using mechanical drive units.

[0004] This resulted in problems where the mat surface is flat or formed with a fixed pattern that provides only fixed undulations (curvature) and fixed slopes molded during manufacturing, making it impossible to modify once produced, and thus making it impossible or limited to train on S-shaped curves with changes in the middle, partially steep slopes, and local undulations (curvature) that are common on actual greens.

[0005] In addition, when a mode switch is required, the user must physically change the position or the base, and when attempting localized variation, the device may deform with a "pop," become hard, or sink in, which impairs the fine sense of putting and lowers the quality of training.

[0006] In addition, there was a problem in that it only provided simple on / off or simple level control, and lacked means to compensate for environmental changes such as temperature, power fluctuations, and gap deviations, so the results varied every time even in the same mode, leading to increased user dissatisfaction and difficulty in standardizing product quality. Prior art literature

[0008] Korean Patent Publication No. 10-2016-0080008 The problem to be solved

[0009] To solve the above problems, the present invention selectively configures the material of the surface layer module to be one of TPU (Thermoplastic Polyurethane), TPE-SEBS (Styrenic Block Copolymer-based Thermoplastic Elastomer), or PU-coated fabric (Polyurethane-coated Fabric), thereby providing an optimal rolling sensation according to the purpose of use (precision, tactile feel, realistic feel) even within the same active slope generation structure; by configuring a flexible film layer module, various active slopes can be immediately realized within the mat by converting the local tension distribution (T(x,y)), local stiffness (Keff), and local curvature (k) into electromagnetic action while in a fixed state without positional movement, thereby providing a golf putting practice environment where the terrain changes like a real green; and by configuring an electromagnetic induction module, force is directly applied to the flexible film layer module via electromagnetic induction, thereby enabling the realization of various course patterns with various active slopes within the mat even during use and without changing the installation position. The purpose is to provide a permanent magnet preload and electromagnet variable force superposition type active slope generating golf putting mat forming control device and method that can create an atmosphere for advanced training scenarios with complex terrains such as S-shaped brakes, two-stage slopes, and curvature including inflection points, by configuring a smart control unit through three-point channel control of the front, middle, and rear sections, beyond a one-way slope. means of solving the problem

[0011] To achieve the above objective, the permanent magnet preload / electromagnet variable force superposition type active slope generating golf putting mat forming control device according to the present invention

[0012] This is achieved by configuring the system to superimpose a permanent magnet preload and an electromagnet variable force to control the formation of an active slope on the surface of a golf putting mat.

[0014] More specifically, the above-mentioned permanent magnet preload / electromagnet variable force superposition type active slope generating golf putting mat forming control device is,

[0015] A golf putter mat body (100) formed in a rectangular box shape in the longitudinal direction to protect and support each device from external pressure, and

[0016] A keypad section (200) located on one side of the side frame of the main body of the golf putter, which inputs mode selection, inputs difficulty adjustment, executes, stops, and resets, and displays the operating status, and

[0017] A surface layer module (300) located on one side of the upper part of the golf putter mat body and formed in a rectangular shape having a longitudinal direction, receiving a force of slope change from a buffer layer module to create a sloped surface for a golf putter on the surface and performing the role of an upper layer where contact with a user or movement of a golf ball occurs from the upper part, and

[0018] A buffer layer module (400) located at the bottom of the surface layer module and formed between the surface layer module and the flexible film layer module, which transmits the force of the inclined surface change received from the flexible film layer module toward the surface layer module, and

[0019] A flexible film layer module (500) located at the bottom of a buffer layer module, receiving electromagnetic force from an electromagnetic induction module, changing into an inclined surface having a mechanical response of tension, stiffness, and curvature, and transmitting the force of the inclined surface change toward the buffer layer module, and

[0020] An electromagnetic induction module (600) that applies an electromagnetic force to a flexible film layer module, positioned between the lower part of the flexible film layer module and the upper surface of the lower support layer module, and passes through the buffer layer module to create an inclined surface for a golf putter on the surface layer module, and

[0021] A lower support layer module (700) positioned on the bottom surface of the golf putter mat body and serving as a base that supports the surface layer module, buffer layer module, flexible film layer module, and electromagnetic induction module from the bottom direction, and

[0022] It is characterized by being composed of a smart control unit (800) that is connected to a keypad unit and an electromagnetic induction module, controls the overall operation of each device, generates course data consisting of a current pattern of a coil array driving table, and then drives a current control electromagnet array signal toward the electromagnetic induction module according to a selection signal of the keypad unit, thereby controlling to form a target local deflection (w), target local curvature (k), target local stiffness (Keff), and target local tension distribution (T(x,y)), which is a target slope (= terrain). Effects of the invention

[0024] As explained above, in the present invention

[0026] First, through the surface layer module, in order to improve the problem where deformation spreads and blurs on the surface and the line indicating where the slope is incline becomes blurred in the case of a conventional thick mat (thick surface layer or thick upper foam), fluctuations in the friction coefficient and rolling resistance of the surface layer can be suppressed, thereby improving the repeatability of the slope formed by electromagnetic induction by 80% compared to the conventional method, and by limiting the surface layer thickness to a range of 0.8 to 1.2 mm, the transmission efficiency of the lower deformation can be improved by 80% compared to the conventional method, and the slope sensation effect can be increased by 1.5 to 2 times under the same current application conditions. Furthermore, by selectively configuring the surface layer material as one of TPU (Thermoplastic Polyurethane), TPE-SEBS (Styrenic Block Copolymer-based Thermoplastic Elastomer), or PU-coated fabric, an optimal rolling sensation can be provided according to the purpose of use (precision, tactile, realistic feel) even with the same slope generation structure.

[0028] Second, by configuring a flexible film layer module, it is possible to instantly realize various slopes within the mat by converting local tension distribution (T(x,y)), local stiffness (Keff), and local curvature (k) into electromagnetic actions while remaining fixed without positional movement, thereby providing a golf putting practice environment where the terrain changes like a real green. By changing the local tension distribution (T(x,y)), tilt and speed sensations based on overall tension can be controlled; by changing the local curvature (k), break and undulation terrains can be generated; and by changing the local stiffness (Keff), differences in local hardness and looseness (roll sensation) can be created, forming smart complex terrains such as an uphill slope where the break is on the right. Furthermore, different terrains can be randomly generated for each practice session, and the difficulty and patterns of specific sections can be continuously changed. Through terrain changes over time, the fun and interest of the user can be increased by 1.5 to 3 times compared to existing methods. Additionally, the same curvature and tension patterns can be reproduced with the same current pattern, and when the current is removed, the standard It can return to the preloaded state (permanent magnet), allowing for a fast reset and the creation of a clear reference point.

[0030] Third, by configuring an electromagnetic induction module, force is applied directly to the flexible film layer module via electromagnetic induction, allowing for the implementation of various course patterns with various slopes internally even during use without changing the installation position. Furthermore, low power consumption and high response can be achieved through the superposition (C) of permanent magnet preload and electromagnet variable force. Additionally, the brake line resolution is improved by 80% compared to the existing one through cell-unit and pattern-unit local control. Through course data consisting of current patterns of the coil array drive table, various courses, difficulty levels, and training programs can be provided using a single mat. Additionally, a service can be provided in the form of downloading and updating patterns tailored to user weaknesses (weakness in left brake, deviation by distance).

[0032] Fourth, by configuring a smart control unit, the target terrain can be generated as a current pattern (coil array drive table) and executed according to keypad selection, thereby providing multiple course, brake, and slope modes with a single piece of hardware, saving and loading preset courses (1~N), and managing difficulty levels (slope intensity, curvature intensity) as data. By maintaining a constant current based on current sensors (I1~I3), the reproducibility of force and sagging can be improved by 80% compared to the existing system. By correcting gaps, saturation, and permanent magnet effects through magnetic field correction based on Hall sensors (B1~B3), a stable terrain resistant to field errors can be realized through a magnetic field-based closed loop. Furthermore, through 3-point channel control of the front, middle, and rear sections, it is possible to create an atmosphere for advanced training scenarios with complex terrains such as S-shaped brakes, two-stage slopes, and curvatures including inflection points, going beyond unidirectional slopes. Additionally, by combining user input (keypad) and control logic, operational efficiency can be increased by 1.5 to 2 times compared to the existing system, simultaneously improving user experience and safety. Brief explanation of the drawing

[0034] FIG. 1 is a block diagram illustrating the components of a permanent magnet preload / electromagnet variable force superposition type active inclined surface generating golf putting mat forming control device (1) according to the present invention. FIG. 2 is a perspective view illustrating the components of a permanent magnet preload / electromagnet variable force superposition type active inclined surface generating golf putting mat forming control device (1) according to the present invention. FIG. 3 is an exploded perspective view illustrating the components of a permanent magnet preload / electromagnet variable force superposition type active inclined surface generating golf putting mat forming control device according to the present invention. FIG. 4 is a cross-sectional perspective view illustrating the components of a stacked surface layer module, buffer layer module, flexible film layer module, electromagnetic induction module, and lower support layer module in a permanent magnet preload / electromagnet variable force superposition type active slope generating golf putting mat forming control device according to the present invention. FIG. 5 is a block diagram illustrating the components of a flexible film layer module according to the present invention, FIG. 6 is a block diagram illustrating the components of a magneto-active film portion according to the present invention. FIG. 7 is a block diagram illustrating the components of a membrane tension-based film (Pre-tensioned membrane) portion according to the present invention. FIG. 8 is a block diagram illustrating the components of an electromagnetic induction module according to the present invention, FIG. 9 is a block diagram illustrating the components of a current-controlled electromagnet-type electromagnetic induction unit according to the present invention. FIG. 10 is an exemplary embodiment illustrating the components of a first current-controlling electromagnet, a second current-controlling electromagnet, and a third current-controlling electromagnet according to the present invention. FIG. 11 is a block diagram illustrating the components of a permanent magnet type electromagnetic induction unit according to the present invention, FIG. 12 is an exemplary embodiment illustrating the components of a first permanent magnet, a second permanent magnet, and a third permanent magnet according to the present invention. FIG. 13 is an embodiment illustrating that a current-controlled electromagnet-type electromagnetic induction region (A) formed by a current-controlled electromagnet-type electromagnetic induction unit according to the present invention and a permanent magnet-type electromagnetic induction region (B) formed by a permanent magnet-type electromagnetic induction unit form an overlapping region (C) in a part of a flexible film layer module. FIG. 14 is a circuit diagram illustrating the components of a smart control unit according to the present invention, FIG. 15 is an embodiment illustrating the generation of course data consisting of a current pattern of a coil array driving table through a smart control unit according to the present invention. FIG. 16 is an embodiment illustrating the application of an electromagnetic force to a flexible film layer module to create an active inclined surface for a target golf putter on a surface layer module passing through a buffer layer module via an electromagnetic induction module according to the present invention. FIG. 17 is an embodiment illustrating that, by superimposing a permanent magnet preload and an electromagnet variable force according to the present invention, a target local deflection (w), a target local curvature (k), a target local stiffness (Keff), and a target local tension distribution (T(x,y)), which are active inclined surfaces (=terrain) for a target golf putter, are formed on the surface of a golf putting mat. FIG. 18 is an embodiment illustrating that, through a surface layer module according to the present invention, the force of an active slope change is transmitted from a buffer layer module to create an active slope for a target golf putter on the surface, and performs the role of an upper layer where contact with a user or movement of a golf ball takes place from the top. FIG. 19 is a flowchart illustrating a method for controlling the formation of a golf putting mat with a permanent magnet preload and an electromagnet variable force superposition type active inclined surface generation according to the present invention. FIG. 20 is a flowchart illustrating the application of an electromagnetic force to a flexible film layer module to create an active inclined surface for a target golf putter on a surface layer module passing through a buffer layer module via an electromagnetic induction module according to the present invention. FIG. 21 is a flowchart illustrating a specific process of selectively applying a local and variable electromagnetic force to the front, middle, and rear regions of a flexible film layer module through a current-controlled electromagnet-type electromagnetic induction unit according to the present invention. FIG. 22 is a flowchart illustrating a specific process of applying a reference magnetic field and a reference attractive force (preload) to the front, middle, and rear regions of a flexible film layer module through a permanent magnet type electromagnetic induction unit according to the present invention. Specific details for implementing the invention

[0036] First, the inclined surface described in the present invention refers to a surface tilted to have a certain angle (θ) with respect to a horizontal plane, and describes a structure that accepts an inclined environment. The active inclined surface refers to a structure that creates and controls an inclined environment, wherein an active inclined surface for a target golf putter is formed by controlling the target local stiffness (Keff), target local tension distribution (T(x,y)), target local curvature (k), and target local deflection (w).

[0038] Hereinafter, preferred embodiments according to the present invention will be described with reference to the accompanying drawings.

[0039] FIG. 1 is a block diagram illustrating the components of a permanent magnet preload and electromagnet variable force superimposed active slope generating golf putting mat forming control device (1) according to the present invention, and FIG. 2 is a perspective view illustrating the components of a permanent magnet preload and electromagnet variable force superimposed active slope generating golf putting mat forming control device (1) according to the present invention, which is configured to control the formation of an active slope on the surface of a golf putting mat by superimposing a permanent magnet preload and an electromagnet variable force.

[0041] More specifically, the above-described permanent magnet preload / electromagnet variable force superposition type active slope generating golf putting mat forming control device (1) is composed of a golf putter mat body (100), a keypad unit (200), a surface layer module (300), a buffer layer module (400), a flexible film layer module (500), an electromagnetic induction module (600), a lower support layer module (700), and a smart control unit (800).

[0043] First, a mat body (100) for a golf putter according to the present invention will be described.

[0044] The above-mentioned golf putter mat body (100) is formed in a rectangular box shape in the longitudinal direction and serves to protect and support each device from external pressure.

[0045] As illustrated in FIG. 3, a surface layer module giving a green grass feel is formed on one side of the upper surface layer module, a buffer layer module is formed on one side of the lower surface layer module, a flexible film layer module is formed on one side of the lower buffer layer module, an electromagnetic induction module is formed on one side of the lower flexible film layer module, and a lower support layer module is formed on one side of the lower electromagnetic induction module.

[0046] In addition, along the outer edge direction of the lower support layer module, the left support frame, right support frame, head-type support frame, and rear support frame are formed and configured from plastic or wood materials.

[0047] In addition, a keypad section is formed on one side, and a smart control section is formed on one side of the internal space of the keypad section.

[0048] A power supply is applied to one side of the above keypad section to form it.

[0050] Next, the keypad section (200) according to the present invention will be described.

[0051] The above keypad section (200) is located on one side of the side frame of the golf putter mat body and serves to input mode selection, input difficulty adjustment, execute operation, stop, reset, and display the operating status.

[0052] Here, the mode selection is configured to consist of a left brake, right brake, uphill, downhill, S-brake, 2-stage undulation, random undulation, and a course preset 1~N.

[0053] Internally, the current map (coil array drive table) is selected.

[0054] And, the difficulty adjustment inputs are slope intensity (forward / backward tilt), brake intensity (left / right tilt),

[0055] By inputting the curvature intensity (undulation depth) and the rate of change (pattern switching speed), the magnitude, distribution, and rate of change (ramp) of the electromagnet current are controlled.

[0056] In addition, Start ramps up the current to the target pattern, Stop ramps down the current to zero, Reset returns to the reference state (B permanent magnet preload state), and Emergency Stop (E-Stop, selectable) immediately cuts off the output (in case of overheating / abnormality).

[0058] Next, a surface layer module (300) according to the present invention will be described.

[0059] As shown in FIG. 4, the surface layer module (300) is located on one side of the upper part of the golf putter mat body and is formed in a rectangular shape having a longitudinal direction, receives the force of the slope change from the buffer layer module to create an active slope for the target golf putter on the surface, and performs the role of an upper layer where contact with the user or movement of the golf ball takes place from the top.

[0060] This has constant ball rolling resistance and friction coefficient, and possesses characteristics of surface smoothness, wear resistance, and contamination resistance.

[0061] The above surface layer module is formed with a thickness of 0.6 mm to 1.8 mm. To create a relatively large local deformation by electromagnetic driving, it is formed with a thickness of 0.8 mm to 1.2 mm.

[0062] This is because as the thickness increases, blurring phenomena frequently occur where changes in the physical properties of the buffer layer module and flexible film layer module located below spread spatially across the surface, and deformation is absorbed and dispersed within the surface layer module before reaching the surface.

[0063] In other words, instead of the lines feeling lively, it becomes dull.

[0065] The above surface layer module is formed by selecting one of TPU (Thermoplastic Polyurethane), TPE-SEBS (Styrenic Block Copolymer-based Thermoplastic Elastomer), or PU-coated fabric (Polyurethane-coated Fabric).

[0067] The above TPU (Thermoplastic Polyurethane) is a polyurethane-based elastomer that simultaneously possesses elasticity like soft rubber and processability like thermoplastic plastic. It has a microphase separation structure in which soft segments (elasticity) and hard segments (strength) form a structure, has a hardness of Shore A 70 to 95, has excellent elastic recovery rate (restoring stability after repeated compression), excellent wear resistance and scratch resistance, and relatively low temperature dependence.

[0068] In addition, it has a texture intermediate between rubber and plastic, and with a small amount of silica and ceramic microparticles, it is possible to achieve green-like rolling, and the coefficient of friction is easy to control, and if the surface is finely matte-finished, it can be manufactured stably without golf ball bouncing.

[0069] Furthermore, it is compatible with electromagnetically variable structures, ensuring that changes in curvature and tension from the underlying layers (buffer layer module, flexible film layer) are most effectively transmitted to the surface. It exhibits excellent shape-following capabilities as long as the TPU itself is not too thick, and possesses the characteristic of allowing micro-curvatures generated by electromagnetic induction to be preserved on the surface.

[0070] When a surface layer module is manufactured using TPU (Thermoplastic Polyurethane) material according to the present invention, it is formed with a thickness of 0.8 to 1.2 mm and a hardness of Shore A 80 to 88.

[0071] More specifically, it consists of 88.0 wt% TPU (Shore A 80~90), 4.0 wt% silica, 3.0 wt% CaCO₃, 2.0 wt% plasticizer, 0.5 wt% antioxidant, 0.5 wt% UV stabilizer, and 2.0 wt% pigment.

[0072] Here, silica is used for fineness, wear resistance, and grip stability; CaCO₃ forms the filling, cost, and surface texture; plasticizers provide low-temperature flexibility and tactile control; and antioxidants and UV stabilizers provide wear resistance and anti-oxidation.

[0074] The above TPE-SEBS (Styrenic Block Copolymer-based thermoplastic elastomer) is based on SEBS (Styrene-Ethylene-Butylene-Styrene) block copolymer, is composed of TPE that is soft like rubber but blendable with polyolefin, and controls the tactile feel and elasticity with the oil (mineral oil) content.

[0075] In addition, elastic recovery is slightly lower than TPU, wear resistance is at an intermediate level, temperature dependence is somewhat greater than TPU, it has a soft and warm feel, friction decreases as oil content increases, and if it is too high, the ball slides.

[0076] When a surface layer module is manufactured using TPE-SEBS (Styrenic Block Copolymer-based thermoplastic elastomer) according to the present invention, it is formed with a thickness of 1.0 to 1.4 mm and a hardness of Shore A 60 to 90.

[0077] More specifically, 78.0 wt% of SEBS-based TPE and 15.0 wt% of mineral oil, and

[0078] It consists of 4.0 wt% PP, 2.0 wt% CaCO₃, 0.5 wt% UV stabilizer, and 0.5 wt% pigment.

[0079] Here, mineral oil controls plasticity, tactile feel, and elasticity, while PP stabilizes strength and dimensions.

[0081] The above-mentioned PU-coated fabric (Polyurethane-coated Fabric) has a structure formed of an (upper) PU coating layer + a (lower) fabric (polyester / nylon) backing, and possesses characteristics that are good for creating a putting green-like feel and easy to tune for surface friction.

[0082] This is formed such that the PU coating layer is formed to be 0.2 to 0.5 mm thick and the fabric backing is formed to be 0.7 to 1.1 mm thick, so that the total thickness is formed to be 0.9 to 1.6 mm.

[0083] More specifically, it consists of 55 wt% polyester backing, 35 wt% PU coating resin, 5 wt% ceramic microparticles, 2 wt% plasticizer, 2 wt% pigment, and 1 wt% UV stabilizer.

[0084] Here, ceramic microparticles provide wear resistance and fine texture effects.

[0086] Thus, by configuring the surface layer module, the problem of deformation spreading and blurring on the surface and the indistinctness of the tilt line in the case of conventional thick mats (thick surface layer or thick upper foam) can be improved. By suppressing fluctuations in the friction coefficient and rolling resistance of the surface layer, the repeatability of the active inclined surface formed by electromagnetic induction can be enhanced by 80% compared to existing methods. Additionally, by limiting the surface layer thickness to the range of 0.8–1.2 mm, the transmission efficiency of the underlying deformation is improved by 80% compared to existing methods, and the perceived effect of the active inclined surface can be increased by 1.5 to 2 times under the same current application conditions. Furthermore, by selectively configuring the surface layer material as one of TPU (Thermoplastic Polyurethane), TPE-SEBS (Styrenic Block Copolymer-based Thermoplastic Elastomer), or PU-coated fabric, optimal rolling resistance can be achieved according to the intended use (precision, tactile feel, realistic feel) even within the same active inclined surface generation structure. It can provide sensations.

[0088] Next, a buffer layer module (400) according to the present invention will be described.

[0089] As shown in FIG. 4, the above buffer layer module (400) is located below the surface layer module and is formed between the surface layer module and the flexible film layer module, and serves to transmit the force of the active inclined surface change received from the flexible film layer module to the surface layer module.

[0090] At this time, the buffer layer module buffers and smooths the force of the active gradient change received from the flexible film layer module.

[0091] This is formed in a rectangular shape having the same length direction as the surface layer module and has a thickness of 1.0 to 6.0 mm.

[0092] In addition, it buffers and disperses local or sudden mechanical responses caused by electromagnetic induction, thereby stabilizing sensory changes transmitted to the upper surface layer module.

[0093] That is, as a layer that allows one to naturally feel localized sudden deformations such as hardening or sinking caused by the electromagnetic induction module on the surface, one of a micro-bubble elastomer, a gel pad, a honeycomb structure, or a viscoelastic foam is selected and formed.

[0094] In addition, it acts as a low-pass filter so that the abrupt change in curvature of the flexible film layer module does not feel like a step on the surface.

[0095] When local sagging (w(x,y,t)), local curvature (k(x,y,t)), and abrupt tension changes generated in the lower flexible film layer module pass through the buffer layer module, high-frequency and abrupt change components are attenuated, and only low-frequency and gradual shapes are transmitted to the surface layer module.

[0097] In the case of electromagnet drive, the force can change rapidly depending on the position and time. Without a buffer layer, the surface layer module exhibits stiffness (sensation of rapid increase in local stiffness), sinking (sensation of rapid increase in local sagging), and a tapping sensation (stick-slip / vibration). However, by configuring the buffer layer module, the rapid local deformation caused by electromagnetic induction is buffered and dispersed, thereby suppressing the impact sensation and strange sensation on the surface, providing a natural active inclined surface sensation, attenuating the rapid component of the curvature change of the flexible film layer module, and transmitting the gradual component, so that a continuous active inclined surface can be formed on the surface layer.

[0099] Next, a flexible film layer module (500) according to the present invention will be described.

[0100] As shown in FIG. 4, the above flexible film layer module (500) is located below the buffer layer module and receives electromagnetic force from the electromagnetic induction module, changes it into an active inclined surface having a mechanical response of tension, stiffness, and curvature, and transmits the force of the active inclined surface change to the buffer layer module.

[0101] Here, the electromagnetic force refers to the force of active inclined plane change having a mechanical response of tension, stiffness, and curvature formed in the surface layer module.

[0102] In order to maintain a fixed state without positional movement and to change only the physical properties through electromagnetic induction, as shown in FIG. 5, one or both of a magneto-active film part (510) and a pre-tensioned membrane part (520) are combined.

[0104] First, the magneto-active film portion (510) according to the present invention will be described.

[0105] The magneto-active film (510) above is formed with magnetic particles of iron and ferrite in a polymer so that the film itself reacts to magnetism, and when the magnetic field and gradient change, it plays a role in changing the effective stiffness (=elastic modulus) through a fine chain structure formed inside.

[0106] As shown in FIG. 6, this is formed by mixing one or more of the first self-reactive composite film (511), the second self-reactive composite film (512), the third self-reactive composite film (513), and the fourth self-reactive composite film (514).

[0108] The first self-reactive composite film (511) disperses iron-based magnetic particles and ferrite magnetic particles within a polymer to form a self-reactive composite film having a range of stiffness change, durability, and processability.

[0109] It consists of 60.0 wt% polymer (TPU or PU), 28.0 wt% iron-based magnetic particles (CIP), 8.0 wt% ferrite, 1.0 wt% coupling agent, 1.5 wt% dispersant, 1.5 wt% UV stabilizer, and 1.0 wt% pigment.

[0110] Here, the polymer is composed of TPU or cast PU, playing a central role in film processability and resilience, the iron-based magnetic particles are composed of 1-8 μm chips, leading the response, the ferrite corrects the response curve and residual and stability characteristics, the coupling agent prevents aggregation, and the dispersant suppresses fatigue cracking.

[0112] The second self-reactive composite film (512) disperses iron-based magnetic particles and ferrite magnetic particles within a polymer to form a self-reactive composite film having a range of stiffness change at the same magnetic field and power.

[0113] This is used when electromagnet control is applied in the overlapping region (C) to create a sensation of sudden stiffness or to clearly form a local stiffness gradient.

[0114] More specifically, it consists of 50.0 wt% of a polymer (high-elasticity PU or silicone), 38.0 wt% of iron-based magnetic particles (CIP), 8.0 wt% of ferrite, 1.5 wt% of a coupling agent, 1.5 wt% of a dispersant, 0.5 wt% of a UV stabilizer, and 0.5 wt% of a pigment.

[0115] Here, the polymer is composed of high-elasticity PU or silicone to tune viscoelasticity and damping, the content of iron-based magnetic particles is increased to maximize the response, the amount of pepperite is small to medium to stabilize and correct magnetic behavior, and the coupling agent and dispersant play a role in enhancing aggregation between the compositions.

[0117] The above third self-reactive composite film (513) disperses iron-based magnetic particles and ferrite within a polymer to form a self-reactive composite film that minimizes the durability and fatigue life of cracking, permanent deformation, and particle-polymer interface delamination during repeated driving and repeated sagging.

[0118] It consists of 72.0 wt% polymer (TPU / PU), 20.0 wt% iron-based magnetic particles (CIP), 5.0 wt% ferrite, 0.8 wt% coupling agent, 1.2 wt% dispersant, 0.5 wt% UV stabilizer, and 0.5 wt% pigment.

[0119] Here, the polymer increases the TPU / casting PU ratio to ensure ductility, and iron-based magnetic particles are formed at a medium to low content to maintain responsiveness while suppressing cracking, and

[0120] Ferrite is formed at a low to medium content to stabilize behavior, while coupling agents and dispersants play a role in increasing fatigue life by strengthening interfacial bonding.

[0122] The above-mentioned fourth self-reactive composite film (514) serves to form a self-reactive composite film having a lower high-particle response layer of 0.30 mm that reacts strongly to the lower electromagnetic induction module side and an upper low-particle skin layer of 0.20 mm that reacts flexibly to the upper buffer layer module.

[0123] This is formed and constructed as a two- or three-story structure.

[0124] In other words, the low-particle skin layer that responds flexibly to the upper buffer layer module is formed to be flexible and skin-like by increasing the polymer ratio and decreasing the particle ratio, while the high-particle response layer that responds strongly to the lower electromagnetic induction module side is responsible for response and stiffness modulation by increasing the iron-based particle ratio.

[0126] The lower high-particle response layer is composed of 48 wt% polymer, 40 wt% iron-based magnetic particles (CIP), 9 wt% ferrite, 1 wt% dispersant, 1 wt% coupling agent, and 1 wt% UV stabilizer.

[0128] The upper low-particle skin layer comprises 80 wt% polymer and 15 wt% iron-based magnetic particles (CIP), and

[0129] It consists of 3 wt% ferrite, 0.5 wt% dispersant, 0.5 wt% coupling agent, and 1 wt% UV stabilizer.

[0131] Thus, the magneto-active film (MAF) according to the present invention forms an active structural layer based on a magnetically responsive composite material in which the effective stiffness (elastic modulus), local deflection, curvature, and tension distribution of the film are varied as the arrangement of magnetic particles within the film is reconfigured by a magnetic field or a magnetic field gradient.

[0132] In other words, it refers to the property of the film becoming hard or soft on its own when a magnetic field is applied, and magnetic particles dispersed within the film are rearranged into a chain structure by an external magnetic field or a magnetic field gradient, thereby having material response characteristics in which the effective stiffness (elastic modulus), tension distribution, local deflection, and curvature of the film are varied.

[0133] As a technical characteristic, the driving principle involves forming particle chains via a magnetic field to change the stiffness itself; the control targets simultaneously control the target local stiffness (Keff), target local tension distribution (T(x,y)), target local curvature (k), and target local deflection (w); the response speed is very fast at the millisecond level; the curvature resolution is very high at the cell level; the stiffness variable range is wide between the ductile and rigid ranges; the manufacturing difficulty is very high; mass production is moderate; durability is moderate; the cost is high; temperature stability is moderate; advanced terrain representation is capable of expressing S-shapes, inflection points, and steep slopes; the commercialization risk is high; and the application strategy is to use it for premium or research purposes.

[0134] Through these characteristics, the magnetic particles inside the film are rearranged by a magnetic field, and the stiffness itself changes, allowing for the precise realization of high-resolution active slope terrains such as steep slopes, inflection points, and local brakes.

[0136] Second, the membrane tension-based film (Pre-tensioned membrane) part (520) according to the present invention will be described.

[0137] The above membrane tension-based film (Pre-tensioned membrane) part (520) forms the film into an elastic membrane and changes the sagging or pretension distribution of the film by magnetic attraction, thereby changing the effective stiffness, curvature, and tension distribution.

[0138] As shown in FIG. 7, this is formed by mixing one or more of the first membrane film (521), the second membrane film (522), the third membrane film (523), and the fourth membrane film (524).

[0140] The first membrane film (521) above forms a membrane on an outer frame to provide initial pretension, and when the center sags due to magnetic attraction, it serves to form a membrane film having a large curvature with a cross-sectional curvature k = 0.5 to 2.0 (1 / m) and a corresponding radius of curvature R = 0.5 to 2.0m.

[0141] This consists of a combination of a membrane base layer (100 wt%, TPU type), an iron dispersion target coating layer (100 wt%), and a frame bonding adhesive layer (100 wt%).

[0142] The above membrane base film (based on 100 wt%, TPU type) consists of 95 wt% TPU, 1 wt% plasticizer, 1 wt% softening agent, 1 wt% UV stabilizer, and 2 wt% release agent.

[0143] The above iron dispersion target coating layer (based on 100 wt%) consists of 45 wt% PU binder (for coating), 50 wt% iron powder, 1 wt% dispersant, 1 wt% wetting agent, 1 wt% coupling agent, 1 wt% UV stabilizer, and 1 wt% pigment.

[0144] The above frame bonding adhesive layer (based on 100 wt%) consists of 92 wt% acrylic adhesive resin, 6 wt% silica, and 2 wt% stabilizer.

[0145] Here, silica controls viscosity and strength.

[0147] The above second membrane film (522) serves to form a membrane film that has a braking directionality from left to right or right to left by arranging strip reinforcements in a specific direction on the membrane, making it flexible in one direction and rigid in the other.

[0148] This consists of a combination of a membrane base layer (100 wt%, silicone type), a reinforcing strip (100 wt%, aramid type), and a strip laminate adhesive layer (100 wt%).

[0149] The above membrane base film (based on 100 wt%, silicon type) is composed of 96.5 wt% PDMS (Poly Di-methyl Siloxane), 2.0 wt% silica (fine), 1.0 wt% crosslinking / catalyst package, and 0.5 wt% UV stabilizer.

[0150] The above reinforcing strip (based on 100 wt%, aramid type) consists of 65 wt% aramid fiber, 32 wt% PU (Poly Urethane) lamination resin, 2 wt% coupling agent, and 1 wt% stabilizer.

[0151] The above strip laminate adhesive layer (based on 100 wt%) consists of 90 wt% PU adhesive, 8 wt% silica, and 2 wt% stabilizer.

[0153] The above third membrane film (523) serves to form a membrane film having local pretension and reinforcement areas in patch units on the membrane, in accordance with the cell pitch of 20 to 40 mm of the electromagnet coil.

[0154] This consists of a combination of a membrane base film (100 wt%, TPU type), a cell matching patch (100 wt%, heat-sealable film patch type), and a patch portion iron dispersion target coating layer (100 wt%, applied only to the patch area).

[0155] The above membrane base film (based on 100 wt%, TPU type) consists of 94 wt% TPU, 2 wt% plasticizer, 1 wt% softener, 1 wt% UV stabilizer, and 2 wt% release agent.

[0156] The above cell matching patch (based on 100 wt%, heat-sealable film patch type) consists of 92 wt% TPU heat-sealable film, 5 wt% silica, 1 wt% UV stabilizer, and 2 wt% pigment.

[0157] Here, silica controls wear resistance and slip.

[0158] The above-mentioned patch portion iron dispersion target coating layer (based on 100 wt%, applied only to the patch area) consists of 42 wt% PU binder, 55 wt% iron (CIP), 2 wt% dispersant, 0.5 wt% coupling agent, and 0.5 wt% UV stabilizer.

[0160] The above-mentioned fourth membrane film (524) forms micro-perforations in the membrane to lower the effective stiffness of a specific area and, at the same suction force, forms a membrane film having a large local sagging and curvature, with a local curvature (k) of 2 to 8 (1 / m) (radius of curvature R is 0.5 to 0.125 m) in an area where the local sagging amount (wmax) is 5 to 12 mm and the effective length (L) is 80 to 150 mm.

[0161] This consists of a combination of a membrane base layer (100 wt%, tear-resistant TPU), a reinforcing mesh laminate layer (100 wt%, applied to the ring / strip around the pattern).

[0162] The above membrane base film (based on 100 wt%, tear-resistant TPU) consists of 93 wt% TPU (high tensile grade), 3 wt% fine-filled silica for elastic reinforcement, 1 wt% plasticizer, 1 wt% softener, 1 wt% UV stabilizer, and 1 wt% release agent.

[0163] The above reinforcing mesh laminate layer (based on 100 wt%) consists of 70 wt% polyester mesh, 28 wt% PU laminate resin, 1 wt% coupling agent, and 2 wt% UV stabilizer.

[0164] The magnetic target coating layer (based on 100 wt%, applied to the ring / strip around the pattern) consists of 47 wt% PU binder, 48 wt% iron (CIP), 2 wt% dispersant, 1 wt% coupling agent, 1 wt% UV stabilizer, and 1 wt% pigment.

[0166] As such, the membrane tension-based film (Pre-tensioned Membrane, PTM) according to the present invention forms a tension-dominant active structural layer that forms curvature and an active inclined surface by causing local sagging and tension redistribution through electromagnetic attraction of an elastic membrane film with pretension.

[0167] That is, like a structure where a taut rubber membrane bends and becomes inclined when pulled from below, an elastic film with pretension (initial tension) causes localized sagging and tension redistribution by an external attractive force (electromagnetic force), thereby having a tension-dominant active structure that forms curvature and an active inclined surface.

[0168] This is a technical characteristic in that the driving principle creates membrane sagging by suction force to form changes in tension and curvature, and the control targets are centered on the target local tension distribution (T(x,y)), target local curvature (k), and target local sagging (w), the response speed is fast at 10 to 50 ms, the curvature resolution is high, the stiffness variable range is limited, the process difficulty is low, mass production is high, durability is high, cost is low, temperature stability is excellent, advanced terrain representation can express even gentle and continuous slopes, the commercialization risk is low, and the application strategy can be applied as an initial mass production type.

[0169] Through these characteristics, the pretensioned elastic membrane causes sagging and tension redistribution by electromagnetic attraction, naturally forming a gentle and continuous active slope.

[0171] The flexible film layer module (500) according to the present invention can realize an active inclined surface generating flexible film layer that simultaneously secures precision and commercialization stability by being formed by combining a magneto-active film portion alone or a pre-tensioned membrane portion with a magneto-active film portion through local stiffness tuning.

[0172] By superpositioning the variable magnetic force of an electromagnet onto the reference attractive force (preload) of a permanent magnet, and controlling the local deflection (w), local curvature (k), local stiffness (Keff), and local tension distribution (T(x,y)) within the mat, it is possible to control the formation of a target active slope (=terrain) with a target local deflection (w), target local curvature (k), target local stiffness (Keff), and target local tension distribution (T(x,y)), thereby enabling the formation of an active slope that generates a complex slope / break terrain such as a green.

[0174] Thus, by configuring the flexible film layer module according to the present invention, various active slopes can be immediately realized within the mat by converting the local tension distribution (T(x,y)), local stiffness (Keff), and local curvature (k) into electromagnetic actions while remaining fixed without positional movement, thereby providing a golf putting practice environment where the terrain changes like a real green. Furthermore, by changing the local tension distribution (T(x,y)), the slope and speed sensation based on overall tension can be adjusted; by changing the local curvature (k), break and undulation terrains can be generated; and by changing the local stiffness (Keff), differences in local hardness and looseness (roll sensation) can be created, forming a smart complex terrain where the break is on the right side even on an uphill slope. By improving upon the issue where the training effect of existing mats decreases the moment one becomes accustomed to the fixed terrain, different terrains can be randomly generated for each practice session, and the difficulty and patterns of specific sections can be continuously changed. Consequently, through terrain changes over time, the user's enjoyment and interest can be increased by 1.5 to 3 times compared to existing methods. With the same current pattern, the same curvature and tension patterns can be reproduced, and by removing the current, it can return to the reference preload state (permanent magnet), allowing for a fast reset and the clear creation of a reference point.

[0176] Next, an electromagnetic induction module (600) according to the present invention will be described.

[0177] The above electromagnetic induction module (600) is positioned between the lower part of the flexible film layer module and the upper surface of the lower support layer module, and serves to apply electromagnetic force to the flexible film layer module so as to create an active inclined surface for a target golf putter on the surface layer module passing through the buffer layer module.

[0178] This includes multiple electromagnetic means that generate different electromagnetic induction effects, and each electromagnetic means is configured to have a different spatial distribution or range of action with respect to the flexible film layer module.

[0179] Multiple electromagnetic induction actions are configured to act in an overlapping combined manner in a portion of a flexible film layer module, thereby changing at least one mechanical property among tension, stiffness, or curvature of the flexible film layer module.

[0180] In addition, a thin gap (0.1 to 1.0 mm) for insulation and protection or a low-friction and protective film (PET 0.05 to 0.2 mm) is formed between the lower surface of the flexible film layer module and the upper surface of the electromagnetic induction module.

[0181] At this time, if the gap is too large, the suction power decreases rapidly, and if it is too small, contact, friction, and noise may occur.

[0183] As shown in FIG. 8, the above electromagnetic induction module (600) is composed of a current-controlled electromagnet type electromagnetic induction unit (610) that is controlled by the application of current and a permanent magnet type electromagnetic induction unit (620) that provides a reference magnetic force.

[0185] First, a current-controlled electromagnet-type electromagnetic induction unit (610) according to the present invention will be described.

[0186] The above current-controlled electromagnet-type electromagnetic induction unit (610) serves to selectively apply a local and variable electromagnetic force to the front, middle, and rear regions of the flexible film layer module.

[0187] At this time, the flexible film layer module, together with the permanent magnet type electromagnetic induction part, passes through the buffer layer module and creates an active slope surface for the target golf putter on the surface layer module.

[0188] In addition, the current-controlled electromagnet-type electromagnetic induction region (A) formed by the current-controlled electromagnet-type electromagnetic induction part and the permanent magnet-type electromagnetic induction region (B) formed by the permanent magnet-type electromagnetic induction part form an overlapping region (C) in a part of the flexible film layer module.

[0189] In the above-mentioned overlapping region (C), different electromagnetic induction actions are combined to change at least one mechanical property among tension, stiffness, or curvature of the flexible film layer module.

[0190] As shown in FIG. 9, the above current-controlled electromagnet-type electromagnetic induction unit (610) is composed of a first current-controlled electromagnet (611), a second current-controlled electromagnet (612), and a third current-controlled electromagnet (613).

[0191] In addition, depending on the purpose and form, in addition to the 3-channel configuration, it is configured with 5 channels, 7 channels, 9 channels, 12 channels, 20 channels, and 30 channels.

[0192] In addition, it is configured in the form of a coil array to enable local control at the cell or pattern level.

[0193] That is, it is configured to locally increase or decrease the suction force (or magnetic field gradient) only at specific locations, and to rapidly adjust the local deflection (w), local curvature (k), local stiffness (Keff), and local tension distribution (T(x,y)).

[0195] [First current-controlled electromagnet (611)]

[0197] The first current-controlling electromagnet (611) is located on one side of the front of the lower support layer module when viewed from the cross-sectional view, and serves to apply a local and variable electromagnetic force to the front area of ​​the flexible film layer module.

[0198] Here, being located on one side of the front of the lower support layer module means being fixedly positioned and formed, rather than being variable.

[0199] As illustrated in FIG. 10, this consists of a first coil part (611a), a first core part (611b), a first dome-shaped pole piece (611c), a first yoke part (611d), a first current control driver part (611e), a first current sensor part (611f), and a first Hall sensor part (611g).

[0201] The first coil portion (611a) is wound around the first core portion and, upon application of current (I1), generates a magnetic field (B1) and a magnetic field gradient (∇B1), thereby acting as a driving source that provides a variable attractive force to the shear region of the flexible film layer module.

[0202] This consists of copper enameled wire for winding.

[0204] The first core section (611b) above concentrates and induces the magnetic flux created by the first coil section, and serves as the central path of the magnetic circuit so that the magnetic flux is directed toward the front region of the flexible film layer module.

[0205] This consists of a core shape selected from a cylindrical, rectangular prism, or mushroom shape, a magnetic core body, and a coil mounting part.

[0207] The first dome-shaped pole piece (611c) serves to form a dome shape by locally concentrating the magnetic flux transmitted from the first core portion into a narrow section of the shear area of ​​the flexible film layer module.

[0208] This consists of a pole piece body, a dome-shaped part, and a connecting part.

[0209] The above dome shape refers to a structure in which the magnetic flux transmitted from the first core section is locally concentrated in a narrow section of the shear region of the flexible film layer module, thereby increasing the local suction force density even at the same current, and forming a large local sag (w1) and a large local curvature (k1).

[0210] In other words, the magnetic flux density B increases at the apex of the pole piece dome, and the attractive force increases rapidly as the distance g from the flexible film layer module decreases.

[0211] Consequently, the deflection w1 at a specific shear location increases first, the tension distribution T(x,y) is redistributed around it, and the shear slope starting point is formed.

[0213] The first yoke portion (611d) above serves to provide a magnetic flux return path through which the magnetic flux that has gone up through the first core portion and the first dome-shaped pole piece returns.

[0214] This consists of a yoke plate and a core lower joint.

[0215] By configuring the first yoke portion according to the present invention, leakage flux is reduced and the concentration of magnetic flux in the upward direction is strengthened, thereby increasing the force at the same current, improving efficiency, and reducing interference between surrounding channels.

[0216] That is, the magnetic flux created by the first coil section rises to the first core section and the first dome-shaped pole piece.

[0217] Next, the magnetic flux passing through the air gap around the first dome-shaped pole piece returns to the lower part of the core through the yoke to complete a closed-loop magnetic circuit.

[0219] The above-mentioned first current control driver unit (611e) is located on one side of the internal space at the rear end of the golf putter mat body and controls the current (I1) flowing through the first coil unit,

[0220] It plays a role in controlling the formation of sagging and curvature patterns.

[0221] This is configured to include a power switching element, a current control circuit, a power supply unit, a protection circuit, and a communication interface.

[0222] That is, when the smart control unit transmits a control signal for the target current (I1), target magnetic field, or sag target, the first current control driver unit adjusts the coil current using PWM control or constant current control.

[0223] Next, the error is reduced and stable is maintained through current sensor feedback.

[0224] At this time, if necessary, magnetic field-based correction is performed using the Hall sensor value of the first Hall sensor unit.

[0226] The first current sensor unit (611f) is located on one side of the first coil unit and serves to sense the current (I1) flowing through the first coil unit.

[0227] This stabilizes the constant current control of the first current control driver unit and suppresses power fluctuations caused by channel deviations, temperature changes, and resistance changes.

[0229] The first Hall sensor part (611g) is located on one side of the first dome-shaped pole piece and serves to sense the magnetic field B1 generated in the shear area direction of the flexible film layer module.

[0230] This consists of a Hall element, a digital Hall sensor, a sensor housing, and a signal processing unit.

[0232] [Second current-controlled electromagnet (612)]

[0234] The second current-controlling electromagnet (612) is located on one side of the middle of the lower support layer module when viewed from the cross-sectional view, and serves to apply a local and variable electromagnetic force to the middle area of ​​the flexible film layer module.

[0235] Here, being located on one side of the middle of the lower support layer module means being fixedly positioned and formed, rather than being variable.

[0236] As illustrated in FIG. 10, this consists of a second coil part (612a), a second core part (612b), a second dome-shaped pole piece (612c), a second yoke part (612d), a second current control driver part (612e), a second current sensor part (612f), and a second Hall sensor part (612g).

[0238] The second coil portion (612a) is wound around the second core portion and, upon application of current (I2), generates a magnetic field (B2) and a magnetic field gradient (∇B2), thereby acting as a driving source that provides a variable attractive force to the intermediate region of the flexible film layer module.

[0239] This consists of copper enameled wire for winding.

[0241] The second core section (612b) above concentrates and induces the magnetic flux created by the second coil section, and serves as the central path of the magnetic circuit so that the magnetic flux is directed toward the intermediate region of the flexible film layer module.

[0242] This consists of a core shape selected from a cylindrical, rectangular prism, or mushroom shape, a magnetic core body, and a coil mounting part.

[0244] The second dome-shaped pole piece (612c) above serves to form a dome shape by locally concentrating the magnetic flux transmitted from the second core portion into a narrow section of the intermediate area of ​​the flexible film layer module.

[0245] This consists of a pole piece body, a dome-shaped part, and a connecting part.

[0246] The above dome shape refers to a structure in which the magnetic flux transmitted from the second core section is locally concentrated in a narrow section of the intermediate region of the flexible film layer module, thereby increasing the local suction force density even at the same current, and forming a large local sag (w2) and a large local curvature (k2).

[0247] In other words, the magnetic flux density B increases at the apex of the pole piece dome, and the attractive force increases rapidly as the distance g from the flexible film layer module decreases.

[0248] Consequently, the deflection w2 at a specific position of the suspension increases first, the tension distribution T(x,y) is redistributed around it, and the starting point of the suspension slope is formed.

[0250] The second yoke portion (612d) above serves to provide a magnetic flux return path through which the magnetic flux that has gone up through the second core portion and the second dome-shaped pole piece returns.

[0251] This consists of a yoke plate and a core lower joint.

[0252] By configuring the second yoke portion according to the present invention, leakage flux is reduced and the concentration of magnetic flux in the upward direction is strengthened, thereby increasing the force at the same current, improving efficiency, and reducing interference between surrounding channels.

[0253] That is, the magnetic flux created by the second coil section rises to the second core section and the second dome-shaped pole piece.

[0254] Next, the magnetic flux passing through the air gap around the second dome-shaped pole piece returns to the lower part of the core through the yoke to complete a closed-loop magnetic circuit.

[0256] The above-mentioned second current control driver unit (612e) is located on one side of the internal space at the rear end of the golf putter mat body and controls the current (I2) flowing through the second coil unit to form a sagging and curvature pattern.

[0257] This is configured to include a power switching element, a current control circuit, a power supply unit, a protection circuit, and a communication interface.

[0258] That is, when the smart control unit transmits a control signal for the target current (I2), target magnetic field, or sag target, the second current control driver unit adjusts the coil current using PWM control or constant current control.

[0259] Next, the error is reduced and stable is maintained through current sensor feedback.

[0260] At this time, if necessary, magnetic field-based correction is performed using the Hall sensor value of the second Hall sensor unit.

[0262] The second current sensor unit (612f) is located on one side of the second coil unit and serves to sense the current (I2) flowing through the second coil unit.

[0263] This stabilizes the constant current control of the second current control driver unit and suppresses power fluctuations caused by channel deviations, temperature changes, and resistance changes.

[0265] The second Hall sensor (612g) is located on one side of the second dome-shaped pole piece and serves to sense the magnetic field B2 generated in the direction of the intermediate area of ​​the flexible film layer module.

[0266] This consists of a Hall element, a digital Hall sensor, a sensor housing, and a signal processing unit.

[0268] [Third current-controlled electromagnet (613)]

[0270] The third current-controlling electromagnet (613) is located on one side of the rear end of the lower support layer module when viewed from the cross-sectional view, and serves to apply a local and variable electromagnetic force to the rear end area of ​​the flexible film layer module.

[0271] Here, being located on one side of the rear end of the lower support layer module means that it is fixedly positioned and formed, rather than being variable.

[0272] As illustrated in FIG. 10, this consists of a third coil part (613a), a third core part (613b), a third dome-shaped pole piece (613c), a third yoke part (613d), a third current control driver part (613e), a third current sensor part (613f), and a third Hall sensor part (613g).

[0274] The third coil portion (613a) is wound around the third core portion and, upon application of current (I3), generates a magnetic field (B3) and a magnetic field gradient (∇B3), thereby acting as a driving source that provides a variable attractive force to the rear end region of the flexible film layer module.

[0275] This consists of copper enameled wire for winding.

[0277] The third core section (613b) above concentrates and induces the magnetic flux created by the third coil section, serving as the central path of the magnetic circuit so that the magnetic flux is directed toward the rear end region of the flexible film layer module.

[0278] This consists of a core shape selected from a cylindrical, rectangular prism, or mushroom shape, a magnetic core body, and a coil mounting part.

[0280] The above third dome-shaped pole piece (613c) serves to form a dome shape by locally concentrating the magnetic flux transmitted from the third core portion into a narrow section of the rear end region of the flexible film layer module.

[0281] This consists of a pole piece body, a dome-shaped part, and a connecting part.

[0282] The above dome shape refers to a structure in which the magnetic flux transmitted from the third core section is locally concentrated in a narrow section of the rear end region of the flexible film layer module, thereby increasing the local suction force density even at the same current, and forming a large local sag (w3) and a large local curvature (k3).

[0283] In other words, the magnetic flux density B increases at the apex of the pole piece dome, and the attractive force increases rapidly as the distance g from the flexible film layer module decreases.

[0284] Consequently, the deflection w3 at a specific rear end location increases first, the tension distribution T(x,y) is redistributed around it, and the rear end slope starting point is formed.

[0286] The above third yoke portion (613d) serves to provide a magnetic flux return path through which the magnetic flux that has gone up through the third core portion and the third dome-shaped pole piece returns.

[0287] This consists of a yoke plate and a core lower joint.

[0288] By configuring the third yoke portion according to the present invention, leakage flux is reduced and the concentration of magnetic flux in the upward direction is strengthened, thereby increasing the force at the same current, improving efficiency, and reducing interference between surrounding channels.

[0289] That is, the magnetic flux created by the third coil section rises to the third core section and the third dome-shaped pole piece.

[0290] Next, the magnetic flux passing through the air gap around the third dome-shaped pole piece returns to the lower part of the core through the yoke to complete a closed-loop magnetic circuit.

[0292] The above-mentioned third current control driver unit (613e) is located on one side of the internal space at the rear end of the golf putter mat body and controls the current (I3) flowing through the third coil unit to form a sagging and curvature pattern.

[0293] This is configured to include a power switching element, a current control circuit, a power supply unit, a protection circuit, and a communication interface.

[0294] That is, when the smart control unit transmits a control signal for the target current (I3), target magnetic field, or sag target, the third current control driver unit adjusts the coil current using PWM control or constant current control.

[0295] Next, the error is reduced and stable is maintained through current sensor feedback.

[0296] At this time, if necessary, magnetic field-based correction is performed using the Hall sensor value of the third Hall sensor unit.

[0298] The third current sensor unit (613f) is located on one side of the third coil unit and serves to sense the current (I3) flowing through the third coil unit.

[0299] This stabilizes the constant current control of the third current control driver section and suppresses power fluctuations caused by channel deviations, temperature changes, and resistance changes.

[0301] The above third Hall sensor part (613g) is located on one side of the third dome-shaped pole piece and serves to sense the magnetic field B3 generated in the direction of the rear end area of ​​the flexible film layer module.

[0302] This consists of a Hall element, a digital Hall sensor, a sensor housing, and a signal processing unit.

[0304] Second, the permanent magnet type electromagnetic induction part (620) according to the present invention will be described.

[0305] The above permanent magnet type electromagnetic induction unit (620) is located on one side of the current-controlled electromagnet type electromagnetic induction unit and serves to apply a reference magnetic field and a reference attractive force (preload) to the front, middle, and rear regions of the flexible film layer module.

[0306] At this time, the flexible film layer module, together with the current-controlled electromagnet-type electromagnetic induction unit, passes through the buffer layer module to create an active slope surface for the target golf putter on the surface layer module.

[0307] In addition, the current-controlled electromagnet-type electromagnetic induction region (A) formed by the current-controlled electromagnet-type electromagnetic induction part and the permanent magnet-type electromagnetic induction region (B) formed by the permanent magnet-type electromagnetic induction part form an overlapping region (C) in a part of the flexible film layer module.

[0308] In the above-mentioned overlapping region (C), different electromagnetic induction actions are combined to change at least one mechanical property among tension, stiffness, or curvature of the flexible film layer module.

[0310] The above permanent magnet type electromagnetic induction unit (620) is composed of a first permanent magnet (621), a second permanent magnet (622), and a third permanent magnet (623), as shown in FIGS. 11 and 12.

[0311] In addition, depending on the purpose and form, in addition to the 3-channel configuration, it is configured with 5 channels, 7 channels, 9 channels, 12 channels, 20 channels, and 30 channels.

[0312] In addition, to cover a large area, they are distributed and arranged throughout the entire lower support layer module or the entire effective section of the lower support layer module.

[0313] In addition, a reference magnetic field or reference suction force (preload) is created over a wide area to stably form the basic tension, basic curvature, and basic damping state of the flexible film layer module.

[0315] The first permanent magnet (621) applies a reference magnetic field (B0) and a reference attractive force (preload) (F0) to the shear region of the flexible film layer, thereby forming a reference for basic tension (T0) and basic slope (initial slope) in the shear region of the flexible film layer.

[0316] This ensures that when the first current-controlled electromagnet operates, the position where the sag begins does not waver, and forms a larger sag and a greater tilt effect at the same current.

[0317] And, as shown in FIG. 12, it is composed of a permanent magnet body made of NdFeB (neodymium) or ferrite, a back iron, a return plate, a fixing part, and a fastening housing.

[0318] In addition, a steel plate (low-carbon steel) is placed at the bottom of the permanent magnet body to concentrate the magnetic flux upward.

[0319] That is, the first permanent magnet forms a reference magnetic field in the shear region of the flexible film layer module.

[0320] Subsequently, the shear region of the flexible film layer module becomes a stable state where it is weakly pulled or pretensioned.

[0321] Next, when current is applied to the first current-controlled electromagnet, an additional attractive force is added thereto to form a large sag and a large inclination.

[0322] At this time, even if the current is turned off, the shear region of the flexible film layer module returns to the reference state and reproduces the initial state.

[0324] The second permanent magnet (622) applies a reference magnetic field (B0) and a reference attractive force (preload) (F0) to the intermediate region of the flexible film layer, thereby forming a reference for the basic tension (T0) and basic slope (initial slope) of the intermediate region of the flexible film layer.

[0325] This ensures that when the second current-controlled electromagnet operates, the position where the sag begins does not waver, and forms a greater sag and a greater tilt effect at the same current.

[0326] And, as shown in FIG. 12, it is composed of a permanent magnet body made of NdFeB (neodymium) or ferrite, a back iron, a return plate, a fixing part, and a fastening housing.

[0327] In addition, a steel plate (low-carbon steel) is placed at the bottom of the permanent magnet body to concentrate the magnetic flux upward.

[0328] That is, the second permanent magnet forms a reference magnetic field in the intermediate region of the flexible film layer module.

[0329] Subsequently, the interrupted region of the flexible film layer module becomes a stable state, which is weakly pulled or pretensioned.

[0330] Next, when current is applied to the second current-controlled electromagnet, an additional attractive force is added thereto to form a large sag and a large inclination.

[0331] At this time, even if the current is turned off, the interrupted region of the flexible film layer module returns to the reference state and reproduces the initial state.

[0333] The third permanent magnet (623) applies a reference magnetic field (B0) and a reference attractive force (preload) (F0) to the rear end region of the flexible film layer, thereby forming a reference for basic tension (T0) and basic slope (initial slope) in the rear end region of the flexible film layer.

[0334] This ensures that when the third current-controlled electromagnet operates, the position where the sag begins does not waver, and forms a greater sag and a greater tilt effect at the same current.

[0335] And, as shown in FIG. 12, it is composed of a permanent magnet body made of NdFeB (neodymium) or ferrite, a back iron, a return plate, a fixing part, and a fastening housing.

[0336] In addition, a steel plate (low-carbon steel) is placed at the bottom of the permanent magnet body to concentrate the magnetic flux upward.

[0337] That is, the third permanent magnet forms a reference magnetic field in the rear region of the flexible film layer module.

[0338] Subsequently, the rear end region of the flexible film layer module becomes a stable state where it is weakly pulled or pretensioned.

[0339] Next, when current is applied to the third current-controlled electromagnet, an additional attractive force is added thereto to form a large sag and a large inclination.

[0340] At this time, even if the current is turned off, the rear region of the flexible film layer module returns to the reference state and reproduces the initial state.

[0342] As shown in FIG. 13, the current-controlled electromagnet-type electromagnetic induction region (A) formed by the current-controlled electromagnet-type electromagnetic induction unit and the permanent magnet-type electromagnetic induction region (B) formed by the permanent magnet-type electromagnetic induction unit form an overlapping region (C) in a part of the flexible film layer module.

[0343] In the above-mentioned overlapping region (C), different electromagnetic induction actions are combined to change at least one mechanical property among tension, stiffness, or curvature of the flexible film layer module.

[0344] That is, the variable attractive force of the electromagnet is added to the reference preload created by the permanent magnet, so that at least one of the tension, stiffness, and curvature of the flexible film layer module is non-linearly and significantly modulated.

[0345] Also, without B, the effect of A is small or unstable, but when B is present, A can produce a large mechanical response with much less power.

[0347] Thus, by configuring the electromagnetic induction module according to the present invention, the inclination of the existing mat is improved by the fixed molded inclination, the method of tilting the entire thing with an external support, and the fixed undulation pattern. By applying force directly to the flexible film layer module through electromagnetic induction, various course patterns with various active inclination surfaces can be implemented internally even during use without changing the installation position. Furthermore, low power consumption and high response can be achieved through the superposition (C) of permanent magnet preload and electromagnet variable force. Additionally, the brake line resolution is improved by 80% compared to the existing one through cell-unit and pattern-unit local control. Through course data consisting of the current pattern of the coil array drive table, various courses, difficulty levels, and training programs can be provided with a single mat, and a service can be provided in the form of downloading and updating patterns tailored to user weaknesses (weakness in left brake, deviation by distance).

[0349] Next, a lower support layer module (700) according to the present invention will be described.

[0350] The lower support layer module (700) is positioned on the bottom surface of the golf putter mat body and serves as a base that supports the surface layer module, buffer layer module, flexible film layer module, and electromagnetic induction module from the bottom direction.

[0351] This consists of a base plate, reinforcing ribs, an electromagnet array mounting part, a permanent magnet array storage part, and a gap maintenance and protection interface part.

[0353] The above base plate is made of aluminum plate, steel plate, or high-rigidity plastic, and serves to form a reference plane for the entire mat and to form a reference plane for the current-controlled electromagnet-type electromagnetic induction part and the permanent magnet-type electromagnetic induction part.

[0355] The above reinforcing ribs serve to ensure rigidity so that the base plate does not bend when a user steps on the golf putter mat body or when a load is applied.

[0356] It consists of a grid-shaped lower rib, outer frame, crossbar, and corner bracket.

[0358] The above-mentioned electromagnet array mounting part serves to fix the electromagnet mounting position point, which is used to mount a current-controlled electromagnet-type electromagnetic induction part, after forming the position point on one side of the front, middle, and rear ends of the base plate surface.

[0359] This is configured with a coil pocket, mounting groove, core insertion hole, pole piece position reference jaw, fastening part, and positioning pin formed therein.

[0360] And, it is formed so that the distance (gap) from the flexible film layer module is maintained at the standard design value.

[0362] The above-mentioned permanent magnet array housing is located on one side of the electromagnet array mounting part and serves to form a permanent magnet mounting position point for mounting a permanent magnet type electromagnetic induction part, and then fix it in a fixed position.

[0363] This consists of a permanent magnet embedding pocket, a magnet spacing spacer, an adhesive groove, and a back iron mounting surface.

[0364] Through this configuration, the preload distribution based on the front, middle, and rear ends of the flexible film layer module is maintained uniformly and reproducibly, permanent magnet movement and detachment are prevented, and the reference magnetic field distribution is stabilized over the long term.

[0366] The above gap maintenance and protection interface section serves to maintain and protect the design gap between the lower surface of the flexible film layer module and the current-controlled electromagnet-type electromagnetic induction section, and between the lower surface of the flexible film layer module and the permanent magnet-type electromagnetic induction section, at 0.1 to 1.0 mm.

[0367] This consists of a PET-type thin protective plate, a low-friction coating layer, and a 0.1 to 1.0 mm type spacer.

[0369] Next, a smart control unit (800) according to the present invention will be described.

[0370] The smart control unit (800) is connected to the keypad unit and the electromagnetic induction module, and controls the overall operation of each device. It generates course data consisting of the current pattern of the coil array driving table, and then, according to the selection signal of the keypad unit, drives the current control electromagnet array signal toward the electromagnetic induction module to control the formation of the target active slope (= terrain), the target local deflection (w), the target local curvature (k), the target local stiffness (Keff), and the target local tension distribution (T(x,y)).

[0371] This is configured by selecting one of a PIC one-chip microcontroller, a microcomputer, or a microprocessor.

[0372] The present invention is composed of a microprocessor.

[0374] That is, as illustrated in FIG. 14, a keypad unit (200) is connected to one side of an input terminal to input a selection signal for mode selection, difficulty adjustment, operation execution, stop, and reset, and a first current sensor unit (611f) is connected to one side of another input terminal to input a sensing signal for sensing the current (I1) flowing in the first coil unit, and a first Hall sensor unit (611g) is connected to one side of another input terminal to input a sensing signal for sensing the magnetic field B1 generated in the front region direction of the flexible film layer module, and a second current sensor unit (612f) is connected to one side of another input terminal to input a sensing signal for sensing the current (I2) flowing in the second coil unit, and a second Hall sensor unit (612g) is connected to one side of another input terminal to input a sensing signal for sensing the magnetic field B2 generated in the middle region direction of the flexible film layer module, and a third A current sensor unit (613f) is connected to input a sensing signal that senses the current (I3) flowing in the third coil unit, and a third Hall sensor unit (613g) is connected to one side of another input terminal to input a sensing signal that senses the magnetic field B3 generated in the direction of the rear end area of ​​the flexible film layer module, and a keypad unit (200) is connected to one side of an output terminal to output an output signal that displays the driving state, and a first current control driver unit (611e) is connected to one side of another output terminal to output an output signal that controls the current (I1) flowing in the first coil unit to form a sagging and curvature pattern, and a second current control driver unit (612e) is connected to one side of another output terminal to output an output signal that controls the current (I2) flowing in the second coil unit to form a sagging and curvature pattern, and a third current control driver unit (613e) is connected to one side of another output terminal to input the current flowing in the third coil unit It is configured to control the current (I3) to output an output signal that controls the formation of a sagging and curvature pattern.

[0376] As shown in FIG. 15, the smart control unit generates course data consisting of a current pattern of a coil array driving table.

[0378] Thus, by configuring the smart control unit according to the present invention, the problem is improved in the case of conventional mats where the terrain is fixed and the course is the product itself. By generating a target terrain using a current pattern (coil array drive table) and enabling execution based on keypad selection, multiple courses, brakes, and slope modes can be provided with a single piece of hardware. Preset courses (1~N) can be saved and loaded, and difficulty levels (slope intensity, curvature intensity) can be managed as data. Furthermore, force and sagging reproducibility can be improved by 80% compared to existing methods through constant current maintenance based on current sensors (I1~I3). Additionally, gap, saturation, and permanent magnet influences can be corrected through magnetic field correction based on Hall sensors (B1~B3), enabling the implementation of a stable terrain resistant to field errors through a magnetic field-based closed loop. Moreover, through 3-point channel control of the front, middle, and rear sections, it is possible to create an atmosphere for advanced training scenarios using complex terrains such as S-shaped brakes, two-stage slopes, and curvatures including inflection points, going beyond unidirectional slopes. Finally, by combining user input (keypad) and control logic, user experience and safety are simultaneously enhanced. Improved operability can be increased by 1.5 to 2 times compared to the existing level.

[0380] Thus, in the present invention, a reference attractive force (B) is provided through a permanent magnet type electromagnetic induction unit (maintaining the reference surface even when the power is OFF), a local attractive force (A) is varied by current through a current control electromagnet type electromagnetic induction unit, and the overlapping area (C) is A+B overlapped to precisely vary stiffness, curvature, and tension, and a flexible film layer module composed of a magnetic response composite film and a membrane tension-based film changes physical properties (stiffness and tension) according to the magnetic field, a buffer layer module provides sudden deformation buffering and low-pass (natural sensation), a surface layer module transmits lower deformation without loss, and a smart control unit controls the generation of an active slope of the target terrain using a coil array current pattern, thereby enabling the immediate generation of an S-shaped brake, a two-stage slope, and curvature including an inflection point within the mat.

[0381] In addition, the present invention superimposes a permanent magnet preload and an electromagnet micro-variability to generate an active inclined surface, enabling low power consumption, high response, and automatic return to a reference preload state upon power cutoff.

[0382] In addition, the present invention directly controls the terrain using physical property parameters, rather than a simple angle.

[0384] Hereinafter, the method for forming a golf putting mat with a permanent magnet preload and an electromagnet variable force superimposed to generate an active slope surface, as described in the present invention, will be explained in detail using mathematical numerical values.

[0386] First, the concept of superposition is mathematically expressed in terms of magnetic flux density B and attraction pressure p.

[0388] The magnetic flux density in the air gap direction at each starting point (x,y) of the mat is expressed as in the following mathematical formula 1.

[0390]

[0392] Here, B0 represents a permanent magnet preloaded magnetic field that is maintained even when the power is off, and ΔB represents a variable magnetic field created by an electromagnet (coil) controlled by current.

[0394] At this time, the attractive "pressure (surface pressure)" created by the magnetic field is expressed as in the following mathematical equation 2.

[0395]

[0397] When mathematical equation 2 is expanded in a nested manner, it is expressed as mathematical equation 3.

[0398]

[0400] Here, represents the reference preload, represents low-power fine variation (linear term), represents a nonlinear term.

[0402] In other words, if B0 is large in the low-power fine variable (linear term), even a small ΔB (small current) results in a large pressure change, thus providing low power and high resolution.

[0404] Next, if the variable force of the electromagnet is connected to the current and there are N coils, the variable magnetic field (ΔB) created by the electromagnet (coil) is expressed as in the following mathematical equation 4.

[0405]

[0407] Here, I j represents the current of coil j, and α j (x,y) represents the coil influence function of calibration through actual measurement and simulation.

[0409] And, if we replace Equation 4 with the pressure map p(x,y), it is expressed as Equation 5 below.

[0410]

[0412] Here, the current pattern {I j If you change}, the pressure map p(x,y) changes, and that becomes the input for creating the active gradient.

[0414] Next, an active slope is generated by connecting the pressure map p(x,y) to the target deflection field w(x,y).

[0416] This is expressed as in mathematical formula 6.

[0417]

[0419] Here, K eff [N / m 3 ] represents the target local stiffness (Keff) including the flexible film layer module, the buffer layer module, and the lower support layer module.

[0420] In other words, if the pressure is high, it is compressed (sagged) more, creating slope and curvature.

[0422] Next, we will examine why superposition is low-power using numerical examples.

[0424] For example, the permanent magnet preload (B0) is 0.20T, the electromagnet variable (ΔB) is 0.02T (variable by only 10% of the preload), and μ0 = 1.256 × 10⁻¹⁰ -6 Set to.

[0426] That is, the preload pressure is calculated as shown in the following Equation 7 through the reference preload of Equation 3.

[0427]

[0429] The pressure after variable is calculated as shown in the following mathematical formula 8.

[0431]

[0433] And, the amount of pressure change due to the superposition effect is calculated as shown in the following mathematical formula 9.

[0435]

[0437] If we view this as the low-power fine variable (linear term) of Equation 3, almost the same value is obtained as shown in Equation 10 below.

[0438]

[0440] In other words, even a small change, such as electromagnet variation (ΔB) = 0.02T, can cause a pressure change of several kPa.

[0442] Next, we examine numerically how much the pressure change transforms into an active slope (sag).

[0444] Target local stiffness (K eff Taking ) as an example, K eff = 5.0 × 10 6 N / m 3 If we set it as such, it is expressed as the following mathematical formula 11.

[0445]

[0447] In other words, even with only a small variation (10% level) of the electromagnet, the mat surface can be locally raised and lowered by 0.6 mm.

[0449] If this is spatially distributed as a coil array, a pattern such as +0.6mm on the left and -0.6mm on the right is possible, and when the height difference is 1.2mm at a width of 0.5m, the slope of the active inclined surface is calculated as shown in the following mathematical formula 12.

[0450]

[0451] Here, increasing the ΔB range from 0.02T to 0.05T, or K eff If you lower it (make it more flexible), the slope % increases rapidly.

[0453] Thus, the variable magnetic field ΔB(x,y)=∑α formed by the permanent magnet preload B0(x,y) and the coil current pattern according to the present invention j I j By superimposing them, a local suction pressure map is generated as shown in the following mathematical formula 13.

[0454]

[0456] In addition, as shown in Equation 14, by forming the surface deflection field w(x,y), the target slope, curvature, and break terrain can be implemented in real time.

[0457]

[0459] Hereinafter, a method for controlling the formation of a golf putting mat that generates an active slope using a permanent magnet preload and an electromagnet variable force superposition type according to the present invention will be described in detail.

[0461] FIG. 19 is a flowchart illustrating a method for controlling the formation of a golf putting mat by creating an active inclined surface using a permanent magnet preload and an electromagnet variable force superposition type according to the present invention.

[0463] First, mode selection and difficulty adjustment are input through the keypad (S10).

[0465] Next, course data consisting of the current pattern of the coil array driving table is generated through the smart control unit, and then the current control electromagnet array signal is driven toward the electromagnetic induction module according to the selection signal of the keypad unit (S20).

[0467] Next, as illustrated in FIG. 16, an electromagnetic force is applied to a flexible film layer module through an electromagnetic induction module to create an active slope surface for a target golf putter on the surface layer module, passing through the buffer layer module (S30).

[0468] That is, as illustrated in FIG. 20, a local and variable electromagnetic force is selectively applied to the front, middle, and rear regions of the flexible film layer module through a current-controlled electromagnet-type electromagnetic induction unit (S31).

[0469] Next, a reference magnetic field and a reference attractive force (preload) are applied to the front, middle, and rear regions of the flexible film layer module through a permanent magnet type electromagnetic induction unit (S32).

[0470] At this time, the current-controlled electromagnet-type electromagnetic induction region (A) formed by the current-controlled electromagnet-type electromagnetic induction part and the permanent magnet-type electromagnetic induction region (B) formed by the permanent magnet-type electromagnetic induction part form an overlapping region (C) in a part of the flexible film layer module.

[0471] In the above-mentioned overlapping region (C), different electromagnetic induction actions are combined to change at least one mechanical property among tension, stiffness, or curvature of the flexible film layer module.

[0473] The step (S31) of selectively applying a local and variable electromagnetic force to the front, middle, and rear regions of the flexible film layer module through the current-controlled electromagnet-type electromagnetic induction unit is more specifically performed as follows.

[0474] That is, as illustrated in FIG. 21, a local and variable electromagnetic force is applied to the shear region of the flexible film layer module through the first current-controlled electromagnet (S31a).

[0475] Next, a local and variable electromagnetic force is applied to the intermediate region of the flexible film layer module through the second current-controlled electromagnet (S31b).

[0476] Next, a local and variable electromagnetic force is applied to the rear end region of the flexible film layer module through the third current-controlled electromagnet (S31c).

[0478] The step (S32) of applying a reference magnetic field and a reference attractive force (preload) to the front, middle, and rear regions of the flexible film layer module through the above-mentioned permanent magnet type electromagnetic induction unit is more specifically performed as follows.

[0479] That is, as illustrated in FIG. 22, a reference magnetic field (B0) and a reference attractive force (preload) (F0) are applied to the shear region of the flexible film layer through the first permanent magnet to form a reference for a basic tension (T0) and a basic slope (initial slope) in the shear region of the flexible film layer (S32a).

[0480] Next, a reference magnetic field (B0) and a reference attractive force (preload) (F0) are applied to the intermediate region of the flexible film layer through the second permanent magnet to form a reference for the basic tension (T0) and basic slope (initial slope) of the intermediate region of the flexible film layer (S32b).

[0481] Next, a reference magnetic field (B0) and a reference attractive force (preload) (F0) are applied to the rear end region of the flexible film layer through the third permanent magnet to form a reference for a basic tension (T0) and a basic slope (initial slope) in the rear end region of the flexible film layer (S32c).

[0483] Next, in the flexible film layer module, electromagnetic force is received from the electromagnetic induction module and changed into an active inclined surface having a mechanical response of tension, stiffness, and curvature, and the force of the change in the active inclined surface is transmitted to the buffer layer module (S40).

[0484] Here, the electromagnetic force refers to the force of active inclined plane change having a mechanical response of tension, stiffness, and curvature formed in the surface layer module.

[0486] More specifically, the above flexible film layer module is,

[0487] A magneto-active film section in which magnetic particles of iron and ferrite are formed on a polymer to make the film itself react to magnetism, thereby changing the effective stiffness (=elastic modulus) through a fine chain structure formed internally when the magnetic field and gradient change, and

[0488] One or two of the membrane tension-based film (Pre-tensioned membrane) parts, which are formed by changing the sagging or pretension distribution of the film by magnetic attraction to change the effective stiffness, curvature, and tension distribution, are combined.

[0490] The above magneto-active film portion

[0491] A first self-reactive composite film having a range of stiffness variation, durability, and processability, formed by dispersing iron-based magnetic particles and ferrite magnetic particles within a polymer, and

[0492] A second self-reactive composite film formed by dispersing iron-based magnetic particles and ferrite magnetic particles within a polymer to form a self-reactive composite film having a stiffness variation range at the same magnetic field and same power, and

[0493] A third self-reactive composite film that forms a self-reactive composite film by dispersing iron-based magnetic particles and ferrite within a polymer to minimize durability and fatigue life of cracking, permanent deformation, and particle-polymer interface delamination during repeated driving and repeated sagging, and

[0494] One or more of the fourth self-reactive composite films are mixed to form a self-reactive composite film having a lower high-particle response layer of 0.30 mm that reacts strongly to the lower electromagnetic induction module side and an upper low-particle skin layer of 0.20 mm that reacts flexibly to the upper buffer layer module.

[0496] The above membrane tension-based film (Pre-tensioned membrane) part

[0497] A first membrane film that forms a membrane on an outer frame to impart initial pretension, and when the center sags due to magnetic attraction, has a cross-sectional curvature in the range of k = 0.5 to 2.0 (1 / m) and a corresponding large curvature radius of curvature R = 0.5 to 2.0m, and

[0498] A second membrane film formed by arranging strip reinforcements in a specific direction on the membrane to make it flexible in one direction and rigid in another, thereby forming a membrane film having a braking directionality from left to right or right to left, and

[0499] A third membrane film that forms a membrane film having local pretension and reinforcement areas in patch units on the membrane, in accordance with a cell pitch of 20 to 40 mm of an electromagnet coil, and

[0500] One or more of the fourth membrane films are mixed to form a membrane film having a large local deflection and curvature, in which micro-perforations are formed in the membrane to lower the effective stiffness of a specific area, and at the same suction force, the local deflection amount (wmax) is 5 to 12 mm and the effective length (L) is 80 to 150 mm, and the local curvature (k) is 2 to 8 (1 / m) (radius of curvature R is 0.5 to 0.125 m).

[0502] Next, the force of the active gradient change received from the flexible film layer module is transmitted to the surface layer module through the buffer layer module (S50).

[0503] At this time, the buffer layer module buffers and smooths the force of the active gradient change received from the flexible film layer module.

[0505] Finally, as shown in FIG. 18, the surface layer module receives the force of active slope change from the buffer layer module to create an active slope for a target golf putter on the surface and performs the role of an upper layer where contact with the user or movement of the golf ball takes place from the top (S60).

[0506] Here, the surface layer module is formed with a thickness of 0.6mm to 1.8mm and is made by selecting one of TPU (Thermoplastic Polyurethane), TPE-SEBS (Styrenic Block Copolymer-based Thermoplastic Elastomer), or PU coated fabric (Polyurethane-coated Fabric).

[0507] As illustrated in FIG. 17, by superimposing the permanent magnet preload and the electromagnet variable force, a target local deflection (w), target local curvature (k), target local stiffness (Keff), and target local tension distribution (T(x,y)) are formed on the surface of the golf putting mat, which is an active slope (=terrain) for the target golf putter. Explanation of the symbols

[0509] 1: Permanent Magnet Preload / Electromagnet Variable Force Superposition Type Active Slope Generation Golf Putting Mat Formation Control Device 100 : Main body of a golf putter mat 200 : Keypad section 300 : Surface layer module 400 : Buffer layer module 500 : Flexible film layer module 510: Magneto-active film section 520: Pre-tensioned membrane section 600 : Electromagnetic induction module 610: Current-controlled electromagnet-type electromagnetic induction unit 620: Permanent magnet type electromagnetic induction unit providing reference magnetic force 700 : Lower support layer module 800 : Smart Control Unit

Claims

Claim 1 In a golf putting mat forming control device for generating an active slope surface by superimposing a permanent magnet preload and an electromagnet variable force to control the formation of an active slope surface on the surface of a golf putting mat, the device comprises: a golf putter mat body (100) formed in a rectangular box shape in the longitudinal direction to protect and support each device from external pressure; a keypad unit (200) located on one side of the side frame of the golf putter mat body to input mode selection, input difficulty adjustment, execute operation, stop, reset, and display the operating status; and an upper layer located on one side of the upper part of the golf putter mat body to be formed in a rectangular shape having a longitudinal direction, receiving a force for changing the active slope surface from a buffer layer module to generate an active slope surface for a target golf putter on the surface, and performing the role of an upper layer where user contact or movement of a golf ball occurs from the upper part. A surface layer module (300); a buffer layer module (400) located below the surface layer module and formed between the surface layer module and the flexible film layer module, which transmits the force of active slope change received from the flexible film layer module toward the surface layer module; a flexible film layer module (500) located below the buffer layer module, which receives electromagnetic force from an electromagnetic induction module, changes it into an active slope having a mechanical response of tension, stiffness, and curvature, and transmits the force of the active slope change toward the buffer layer module; an electromagnetic induction module (600) located between the lower part of the flexible film layer module and the upper surface of the lower support layer module, which applies electromagnetic force to the flexible film layer module to create an active slope for a target golf putter on the surface layer module passing through the buffer layer module; and a surface layer module, a buffer layer module, a flexible film layer module, and an electromagnetic induction module located on the bottom surface of the golf putter mat body, which induces the surface layer module, the buffer layer module, the flexible film layer module, and the electromagnetic induction module from the bottom direction A lower support layer module (700) that performs the role of a supporting base, a keypad section, and an electromagnetic induction module are connected to control the overall operation of each device, whileA permanent magnet preload / electromagnet variable force superposition type active slope generating golf putting mat forming control device, characterized by comprising a smart control unit (800) that generates course data consisting of a current pattern of a coil array driving table, and then drives a current control electromagnet array signal toward an electromagnetic induction module according to a selection signal of a keypad unit, thereby controlling to form a target local deflection (w), target local curvature (k), target local stiffness (Keff), and target local tension distribution (T(x,y)), which is an active slope (=terrain) for a target golf putter. Claim 2 delete Claim 3 In claim 1, the electromagnetic induction module (600) is characterized by being composed of a current-controlled electromagnet-type electromagnetic induction unit (610) that selectively applies a local and variable electromagnetic force to the front, middle, and rear regions of the flexible film layer module, and a permanent magnet-type electromagnetic induction unit (620) located on one side of the current-controlled electromagnet-type electromagnetic induction unit that applies a reference magnetic field and a reference attractive force (preload) to the front, middle, and rear regions of the flexible film layer module. Claim 4 In claim 3, the current-controlled electromagnet type electromagnetic induction unit (610) is characterized by being composed of a first current-controlled electromagnet (611) located on one side of the front end of the lower support layer module when viewed from the cross-sectional view direction and applying a local and variable electromagnetic force to the front end region of the flexible film layer module, a second current-controlled electromagnet (612) located on one side of the middle end of the lower support layer module when viewed from the cross-sectional view direction and applying a local and variable electromagnetic force to the middle end region of the flexible film layer module, and a third current-controlled electromagnet (613) located on one side of the rear end of the lower support layer module when viewed from the cross-sectional view direction and applying a local and variable electromagnetic force to the rear end region of the flexible film layer module. Claim 5 In claim 4, the first current-controlled electromagnet (611) is wound around the first core portion and performs the role of a driving source that generates a magnetic field (B1) and a magnetic field gradient (∇B1) according to the application of current (I1) to provide a variable attractive force to the front area of ​​the flexible film layer module, a first coil portion (611a) that performs the role of a driving source that concentrates and induces the magnetic flux created by the first coil portion and directs the magnetic flux toward the front area of ​​the flexible film layer module, a first core portion (611b) that performs the role of a central path of a magnetic circuit that concentrates and induces the magnetic flux created by the first coil portion and directs the magnetic flux toward the front area of ​​the flexible film layer module, a first dome-shaped pole piece (611c) that locally concentrates the magnetic flux transmitted from the first core portion into a narrow section of the front area of ​​the flexible film layer module to form a dome shape, a first yoke portion (611d) that provides a magnetic flux return path through which the magnetic flux that has risen through the first core portion and the first dome-shaped pole piece returns, and is located on one side of the internal space at the rear end of the golf putter mat body. A permanent magnet preload / electromagnet variable force superposition type active inclined surface generating golf putting mat forming control device characterized by comprising: a first current control driver unit (611e) that controls the current (I1) flowing in the first coil unit to form a sagging and curvature pattern; a first current sensor unit (611f) located on one side of the first coil unit to sense the current (I1) flowing in the first coil unit; and a first Hall sensor unit (611g) located on one side of the first dome-shaped pole piece to sense the magnetic field B1 generated in the shear area direction of the flexible film layer module. Claim 6 In claim 3, the permanent magnet type electromagnetic induction unit (620) is characterized by being composed of a first permanent magnet (621) that applies a reference magnetic field (B0) and a reference attractive force (preload) (F0) to the front region of the flexible film layer to form a reference for basic tension (T0) and a reference for basic slope (initial slope) in the front region of the flexible film layer; a second permanent magnet (622) that applies a reference magnetic field (B0) and a reference attractive force (preload) (F0) to the middle region of the flexible film layer to form a reference for basic tension (T0) and a reference for basic slope (initial slope) in the middle region of the flexible film layer; and a third permanent magnet (623) that applies a reference magnetic field (B0) and a reference attractive force (preload) (F0) to the rear region of the flexible film layer to form a reference for basic tension (T0) and a reference for basic slope (initial slope) in the rear region of the flexible film layer. Golf putting mat formation control device. Claim 7 In claim 1, the lower support layer module (700) is made of aluminum plate, steel plate, or high-rigidity plastic, and forms a reference plane of the entire mat and a base plate that forms a reference plane of a current-controlled electromagnet-type electromagnetic induction part and a permanent magnet-type electromagnetic induction part; a reinforcing rib that secures rigidity so that the base plate does not bend when a user steps on the golf putter mat body or when a load is applied; an electromagnet array mounting part that forms an electromagnet mounting position point for mounting a current-controlled electromagnet-type electromagnetic induction part on one side of the front, middle, and rear ends of the base plate surface and fixes it in a fixed position; a permanent magnet array storage part located on one side of the electromagnet array mounting part that forms a permanent magnet mounting position point for mounting a permanent magnet-type electromagnetic induction part and fixes it in a fixed position; and maintains and protects the design gap between the lower surface of the flexible film layer module and the current-controlled electromagnet-type electromagnetic induction part and between the lower surface of the flexible film layer module and the permanent magnet-type electromagnetic induction part at 0.1 to 1.0 mm. A permanent magnet preload and electromagnet variable force superposition type active slope generating golf putting mat forming control device characterized by being composed of a gap maintenance and protection interface section. Claim 8 In claim 1, the smart control unit (800) has a keypad unit (200) connected to one side of an input terminal to input a selection signal for mode selection, difficulty adjustment, operation execution, stop, and reset, and a first current sensor unit (611f) connected to one side of another input terminal to input a sensing signal for sensing the current (I1) flowing in the first coil unit, and a first Hall sensor unit (611g) connected to one side of another input terminal to input a sensing signal for sensing the magnetic field B1 generated in the front region direction of the flexible film layer module, and a second current sensor unit (612f) connected to one side of another input terminal to input a sensing signal for sensing the current (I2) flowing in the second coil unit, and a second Hall sensor unit (612g) connected to one side of another input terminal to input a sensing signal for sensing the magnetic field B2 generated in the middle region direction of the flexible film layer module, and a third A current sensor unit (613f) is connected to input a sensing signal that senses the current (I3) flowing in the third coil unit, and a third Hall sensor unit (613g) is connected to one side of another input terminal to input a sensing signal that senses the magnetic field B3 generated in the direction of the rear end area of ​​the flexible film layer module, and a keypad unit (200) is connected to one side of an output terminal to output an output signal that displays the driving state, and a first current control driver unit (611e) is connected to one side of another output terminal to output an output signal that controls the current (I1) flowing in the first coil unit to form a sagging and curvature pattern, and a second current control driver unit (612e) is connected to one side of another output terminal to output an output signal that controls the current (I2) flowing in the second coil unit to form a sagging and curvature pattern, and a third current control driver unit (613e) is connected to one side of another output terminal to input the current flowing in the third coil unit By controlling the current (I3),A permanent magnet preload / electromagnet variable force superposition type active slope generating golf putting mat forming control device characterized by being configured to output an output signal that controls the formation of sagging and curvature patterns. Claim 9 A step (S10) of inputting mode selection and difficulty adjustment through a keypad unit; a step (S20) of generating course data consisting of a current pattern of a coil array driving table through a smart control unit, and then driving a current control electromagnet array signal toward an electromagnetic induction module according to a selection signal from the keypad unit; a step (S30) of applying an electromagnetic force to a flexible film layer module through an electromagnetic induction module to create an active slope surface for a target golf putter on a surface layer module passing through a buffer layer module; a step (S40) of receiving the electromagnetic force from the electromagnetic induction module in the flexible film layer module, changing it into an active slope surface having mechanical responses of tension, stiffness, and curvature, and transmitting the force of the active slope surface change toward the buffer layer module; a step (S50) of transmitting the force of the active slope surface change received from the flexible film layer module toward the surface layer module through a buffer layer module; and an active slope surface from the buffer layer module through the surface layer module A method for controlling the formation of a golf putting mat with a permanent magnet preload and electromagnet variable force superposition type active slope surface, characterized by receiving a force of change to create an active slope surface for a target golf putter on the surface, and performing the role of an upper layer where contact with a user or movement of a golf ball occurs from the top (S60). Claim 10 In claim 9, the above step (S30) is characterized by comprising a step (S31) of selectively applying a local and variable electromagnetic force to the front region, middle region, and rear region of a flexible film layer module through a current-controlled electromagnet-type electromagnetic induction unit, and a step (S32) of applying a reference magnetic field and a reference attractive force (preload) to the front region, middle region, and rear region of a flexible film layer module through a permanent magnet-type electromagnetic induction unit. Claim 11 In claim 10, the above step (S31) is characterized by comprising: a step (S31a) of applying a local and variable electromagnetic force to the front end region of a flexible film layer module through a first current-controlled electromagnet; a step (S31b) of applying a local and variable electromagnetic force to the middle end region of a flexible film layer module through a second current-controlled electromagnet; and a step (S31c) of applying a local and variable electromagnetic force to the rear end region of a flexible film layer module through a third current-controlled electromagnet. Claim 12 In claim 10, the above step (S32) is characterized by comprising: a step (S32a) of forming a reference tension (T0) and a reference slope (initial slope) reference in the front region of the flexible film layer by applying a reference magnetic field (B0) and a reference attractive force (preload) (F0) to the front region of the flexible film layer through a first permanent magnet; a step (S32b) of forming a reference tension (T0) and a reference slope (initial slope) reference in the middle region of the flexible film layer by applying a reference magnetic field (B0) and a reference attractive force (preload) (F0) to the middle region of the flexible film layer through a second permanent magnet; and a step (S32c) of forming a reference tension (T0) and a reference slope (initial slope) reference in the rear region of the flexible film layer by applying a reference magnetic field (B0) and a reference attractive force (preload) (F0) to the rear region of the flexible film layer through a third permanent magnet. Active slope generation golf putting mat formation control method. Claim 13 In claim 9, the flexible film layer module of the above step (S40) is characterized by being formed by combining one or two of the following: a magneto-active film part in which magnetic particles of iron or ferrite are formed in a polymer to make the film itself react to magnetism, thereby changing the effective stiffness (=elastic modulus) through a fine chain structure formed internally when the magnetic field and gradient change, and a pre-tensioned membrane part in which the film is formed as an elastic membrane to change the sagging or pretension distribution of the film by magnetic attraction force, thereby changing the effective stiffness, curvature, and tension distribution. Claim 14 In claim 13, the magneto-active film portion comprises: a first magneto-active film formed by dispersing iron-based magnetic particles and ferrite magnetic particles within a polymer to create a magneto-active film having a stiffness variation range, durability, and processability; a second magneto-active film formed by dispersing iron-based magnetic particles and ferrite magnetic particles within a polymer to create a magneto-active film having a stiffness variation range at the same magnetic field and power; a third magneto-active film formed by dispersing iron-based magnetic particles and ferrite within a polymer to create a magneto-active film that minimizes durability and fatigue life, such as cracking, permanent deformation, and particle-polymer interface delamination, during repeated driving and repeated sagging; and a fourth magneto-active film formed by having a lower high-particle response layer of 0.30 mm that reacts strongly toward the lower electromagnetic induction module and an upper low-particle skin layer of 0.20 mm that reacts flexibly toward the upper buffer layer module. A method for controlling the formation of a golf putting mat that generates an active slope, characterized by being formed by mixing one or more of the composite films (514), a permanent magnet preload, an electromagnet variable force superposition type. Claim 15 delete Claim 16 In claim 13, the membrane tension-based film (Pre-tensioned membrane) portion comprises: a first membrane film formed by forming a membrane on an outer frame to impart initial pretension, and when the center sags due to magnetic attraction, the cross-sectional curvature is in the range of k = 0.5 to 2.0 (1 / m) and the membrane film having a large curvature with a corresponding radius of curvature R = 0.5 to 2.0m; a second membrane film formed by arranging strip reinforcements in a specific direction on the membrane to make it flexible in one direction and rigid in another, thereby forming a membrane film having a braking directionality from left to right or right to left; a third membrane film formed by aligning the membrane with a 20 to 40 mm cell pitch of an electromagnet coil and having local pretension and reinforcement areas in patch units on the membrane; and micro-perforations formed on the membrane to lower the effective stiffness of a specific area, and the same A method for controlling the formation of a permanent magnet preload and electromagnet variable force superposition type active inclined surface generating golf putting mat, characterized by forming a membrane film having a large local deflection and curvature in a region where the local deflection amount (wmax) is 5 to 12 mm and the effective length (L) is 80 to 150 mm, with a local curvature (k) of 2 to 8 (1 / m) (radius of curvature R is 0.5 to 0.125 m) in terms of suction force, by mixing one or more of a fourth membrane film. Claim 17 In claim 16, the first membrane film comprises a membrane base film (based on 100 wt%, TPU type) composed of TPU 95 wt%, plasticizer 1 wt%, softener 1 wt%, UV stabilizer 1 wt%, and release agent 2 wt%; and an iron dispersion target coating layer (based on 100 wt%) is a combination of an iron dispersion target coating layer (based on 100 wt%) composed of PU binder (for coating) 45 wt%, iron powder 50 wt%, dispersant 1 wt%, wetting agent 1 wt%, coupling agent 1 wt%, UV stabilizer 1 wt%, and pigment 1 wt%; and a frame bonding adhesive layer (based on 100 wt%) composed of acrylic adhesive resin 92 wt%, silica 6 wt%, and stabilizer 2 wt%. A golf putting mat formation control method characterized by permanent magnet preload and electromagnet variable force superposition type active slope generation. Claim 18 In claim 9, the surface layer module of the above step (S60) is formed with a thickness of 0.6mm to 1.8mm and is characterized by being formed by selecting one of TPU (Thermoplastic Polyurethane), TPE-SEBS (Styrenic Block Copolymer-based Thermoplastic Elastomer), or PU coated fabric (Polyurethane-coated Fabric).

Images