Forearm textile haptic stimulation device and haptic stimulation flow method

Abstract

The present application relates to the technical field of textile comfort evaluation, and specifically discloses a kind of forearm textile haptic stimulation equipment and haptic stimulation process method, pass through two-dimensional trajectory drive module in X axis and Y axis plane moves, realized controllability of friction path trajectory, solved the parameter fluctuation problem caused by manual operation in prior art, with the advantages of being able to accurately control friction path trajectory, realize the accurate planning of two-dimensional trajectory, reduce experimental result fluctuation, improve the reliability and comparability of subjective evaluation data.

Description

Technical Field

[0001] This application relates to the field of textile comfort evaluation technology, and more specifically, to a forearm textile tactile stimulation device and tactile stimulation process method. Background Technology

[0002] In the research and development of textiles, apparel, maternal and infant products, and medical dressings, the tactile comfort of textiles when in contact with human skin is a core element in evaluating product quality. Due to the highly subjective nature of tactile perception, the industry currently widely employs subjective human evaluation experiments for assessment. This involves subjects directly experiencing the interaction between the textile and their skin and completing a questionnaire score based on their personal experience. However, traditional experimental methods primarily rely on manual touch manipulation, where researchers rub textile samples against the subject's skin, or the subject touches the sample themselves. This approach has significant drawbacks: key parameters such as the path trajectory, sliding speed, pressure, and reciprocating frequency are difficult to control precisely during friction, leading to significant fluctuations in experimental results for the same subject across different testing periods or among different subjects. Furthermore, individual differences in operator habits result in a lack of standardized friction actions, making it difficult to reliably reproduce the stimulus characteristics of the physical stimulus source. This significantly increases noise in subjective evaluation data, hindering scientific data quantification and cross-sectional comparisons.

[0003] There is currently no effective technical solution to the above problems. Summary of the Invention

[0004] To address the technical problems mentioned in the background art, this application provides a forearm textile tactile stimulation device and tactile stimulation process method, which can reduce fluctuations in experimental results and improve the reliability of subjective evaluation data by constraining the friction path trajectory.

[0005] To solve the above-mentioned technical problems, the solution proposed in this application is as follows: As one aspect of this application, a forearm textile tactile stimulation device is provided, comprising: A base platform that provides an open testing base space; The arm support unit is mounted on the base platform and is used to support the arm of the test subject. A two-dimensional trajectory driving module is mounted on a base platform, and the output end of the two-dimensional trajectory driving module is configured to move within a two-dimensional plane composed of the X-axis and the Y-axis. A sample execution unit is connected to the output end of the two-dimensional trajectory drive module. A trajectory control system, which is electrically connected to the two-dimensional trajectory drive module; When the system receives an operation signal from the user or a detection signal from the forearm textile tactile stimulation device, the trajectory control system sends a working instruction, and the two-dimensional trajectory drive module works according to the working instruction.

[0006] Furthermore, the two-dimensional trajectory driving module includes a first driving component and a second driving component; The driving end of the first driving component is connected to the second driving component, and the first driving component is used to drive the second driving component to move in the X-axis direction; The driving end of the second driving component is connected to the sample execution unit, and the second driving component is used to drive the sample execution unit to move in the Y-axis direction.

[0007] Furthermore, the first driving component includes: The first drive mounting base is fixedly mounted on the base platform; A first servo motor is mounted on one end of a first drive mounting base and fixed to a base platform. The first lead screw is movably positioned on the first drive mounting base, and one end of the first lead screw is connected to the drive end of the first servo motor. A first nut seat is driven and mounted on a first lead screw, and a second drive assembly is mounted on the first nut seat.

[0008] Furthermore, the second driving component includes: The second drive mounting base is fixedly connected to the drive end of the first drive assembly; The second servo motor is mounted on one end of the second drive mounting base; The second lead screw is movably positioned on the second drive mounting base, and one end of the second lead screw is connected to the drive end of the second servo motor. The second nut seat is driven and mounted on the second lead screw, and the sample execution unit is mounted on the second nut seat.

[0009] Furthermore, the sample execution unit includes: A sample mounting assembly for mounting the textile to be tested; A clamping assembly is installed at the output end of the two-dimensional trajectory drive module and is used to clamp and position the sample mounting assembly.

[0010] Furthermore, the sample mounting assembly includes: A flat plate holder, one side of which is used to place the textile to be tested; Two positioning bosses and two clamping pieces used in conjunction with the positioning bosses. The two positioning bosses are spaced apart on the flat plate support and together with the flat plate support form the elastic movement area of ​​the textile to be tested. The two clamping pieces cooperate with the corresponding positioning bosses to clamp and position the textile to be tested. At least four uprights are provided adjacent to the positioning boss, and the uprights are detachably connected to the clamping plate.

[0011] Furthermore, the clamping assembly includes: Erecting the frame; A clamping member is installed on the upper end of the upright. The clamping member includes a first elastic arm and a second elastic arm arranged opposite to each other. The ends of the first elastic arm and the second elastic arm are respectively provided with a first fastening edge and a second fastening edge. A first protrusion is provided on one part of the first elastic arm and a second protrusion is provided on one part of the second elastic arm, which is arranged opposite to the first protrusion. A clamping bolt is provided on the first elastic arm. The clamping bolt passes through the first protrusion and the second protrusion in sequence and is threadedly connected to the first elastic arm and the second elastic arm. The first elastic arm and the second elastic arm are moved closer or further apart by rotating the clamping bolt. A clamping plate is fixed to the sample mounting assembly and is used to clamp the sample mounting assembly to position it.

[0012] Furthermore, the support arm unit includes: A first support bracket and a second support bracket are arranged at intervals between each other. The first support bracket and the second support bracket are fixedly installed on the base platform. The first support bracket and the second support bracket are used to support the arm of the test subject.

[0013] Furthermore, the support arm unit also includes: A gripping assembly, which is rotatably mounted on a second support bracket; The gripping component includes: A rotating base plate, which is rotatably mounted on a second support bracket; A positioning vertical plate is fixedly installed on a rotating base plate; The handle is fixedly installed on the positioning vertical plate.

[0014] As a second aspect of this application, a method for tactile stimulation of forearm textiles is provided, which utilizes the forearm textile tactile stimulation device described above, including: Step S1: Place the subject's forearm on the support unit; Step S2: Fix the textile sample to be tested onto the sample execution unit; Step S3: The trajectory control system controls the two-dimensional trajectory driving module to drive the sample execution unit to carry the textile sample along a preset running trajectory on the surface of the subject's forearm, wherein the running trajectory includes: The sample execution unit starts from the first motion starting point far from the elbow end of the forearm and is driven by the first drive component to move along the longitudinal direction of the forearm toward the elbow end, until it reaches the elbow end of the forearm. The sample execution unit starts from the elbow end of the forearm and is driven to translate laterally along the forearm through the second drive assembly, reaching the wrist end of the forearm. The sample execution unit starts from the forearm wrist end and is driven by the first drive component to move along the longitudinal direction of the forearm toward the wrist end away from the second motion starting point, and reaches the second motion starting point. Step S4: After completing a single loop, repeat step S3 or repeat step S3 along the reverse running trajectory until the set number of tests is reached.

[0015] As can be seen from the above, the forearm textile tactile stimulation device and tactile stimulation process method provided in this application achieves controllability of friction path trajectory by moving a two-dimensional trajectory drive module in the X-axis and Y-axis planes. This solves the problem of parameter fluctuation caused by manual operation in the prior art. It has the advantages of being able to accurately control the friction path trajectory, realize accurate planning of two-dimensional trajectory, reduce fluctuation of experimental results, and improve the reliability and comparability of subjective evaluation data. Attached Figure Description

[0016] Figure 1 A schematic diagram of the forearm textile tactile stimulation device provided in an embodiment of this application; Figure 2 A top view of the forearm textile tactile stimulation device provided in an embodiment of this application; Figure 3 A flowchart of a forearm textile tactile stimulation process method provided in an embodiment of this application; Figure 4 This is a schematic diagram illustrating the direction of the movement trajectory of the sample execution unit in the tactile stimulation process method for forearm textiles provided in the embodiments of this application. Reference numerals: 100, base platform; 200, support arm unit; 300, two-dimensional trajectory drive module; 400, sample execution unit; 310, first drive assembly; 320, second drive assembly; 311, first drive mounting base; 312, first servo motor; 313, first lead screw; 321, second drive mounting base; 322, second servo motor; 323, second lead screw; 410, sample mounting assembly; 420, clamping assembly; 411, plate support; 412. Positioning boss; 413, clamping plate; 414, column; 421, frame; 422, clamping component; 423, first elastic arm; 424, second elastic arm; 4231, first buckle edge; 4241, second buckle edge; 4232, first protrusion; 4242, second protrusion; 425, clamping bolt; 426, clamping plate; 210, first support bracket; 220, second support bracket; 230, gripping component; 231, rotating base plate; 232, positioning vertical plate; 233, handle. Detailed Implementation

[0017] To better illustrate the present invention, the invention will now be described in further detail with reference to the accompanying drawings.

[0018] It should be understood that, in order to make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The components of the embodiments of this disclosure described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely represents selected embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0019] The following description uses at least one specific embodiment as an example. In this embodiment: The following description uses at least one specific embodiment as an example. In this embodiment: Firstly, such as Figure 1 As shown, a forearm textile tactile stimulation device is provided, comprising: The base platform 100 provides an open test base space, which allows operators to easily place the arm of the test subject and to debug and maintain the equipment. Support arm unit 200, which is disposed on the base platform 100 and is used to support the arm of the test subject; A two-dimensional trajectory driving module 300 is disposed on a base platform 100. The output end of the two-dimensional trajectory driving module 300 is configured to move in a two-dimensional plane composed of the X-axis and the Y-axis. As one implementation, the two-dimensional trajectory driving module 300 can be composed of two independent linear motion mechanisms, one mechanism is responsible for movement in the X-axis direction and the other mechanism is responsible for movement in the Y-axis direction. The sample execution unit 400 is connected to the output end of the two-dimensional trajectory drive module 300. The main function of the sample execution unit 400 is to mount the textile sample to be tested and bring it to the surface of the forearm of the test subject for stimulation. A trajectory control system, which is electrically connected to the two-dimensional trajectory drive module 300; When the system receives an operation signal from the user or a detection signal from the forearm textile tactile stimulation device, the trajectory control system sends a working instruction, and the two-dimensional trajectory drive module 300 works according to the working instruction.

[0020] The above technical solution is illustrated below with a more specific example: Suppose a standardized test is needed to assess the tactile properties of a novel maternal and infant textile to evaluate its irritation to infant skin. Place the forearm textile tactile stimulation device on a laboratory workbench.

[0021] First, user A mounts the sample of the maternal and infant textile to be tested onto the sample execution unit 400. Then, the sample execution unit 400 is connected to the output of the two-dimensional trajectory drive module 300.

[0022] Next, a test subject places their forearm on the support unit 200. The support structure of the support unit 200 ensures that the test subject's forearm is in a stable position, and its height and angle can be finely adjusted according to the test subject's body shape to ensure that the contact surface between the textile and the forearm skin remains consistent.

[0023] User A selects a preset trajectory test mode through the operation interface of the trajectory control system. After receiving the operation signal from User A, the trajectory control system immediately begins processing these instructions.

[0024] The trajectory control system generates a series of precise motion commands based on preset trajectory parameters and sends them to the two-dimensional trajectory drive module 300 via electrical connection. Upon receiving these commands, the two-dimensional trajectory drive module 300 begins to work collaboratively.

[0025] Thus, the sample execution unit 400 carries the textile sample and, driven by the two-dimensional trajectory driving module 300, begins to move along a preset trajectory on the skin surface of the test subject's forearm, thereby ensuring that the contact trajectory between the textile sample and the forearm skin is repeatable.

[0026] After a single friction cycle is completed, the trajectory control system records the relevant data and automatically controls the two-dimensional trajectory drive module 300 to perform the next cycle based on the set number of tests, until the set number of friction cycles is completed. This avoids the problems of large motion variables and poor repeatability caused by operator differences in traditional manual touch methods.

[0027] Based on the above examples, the device in this embodiment achieves precise control of the motion trajectory of textile samples by introducing a two-dimensional trajectory driving module 300 and a trajectory control system. The two-dimensional trajectory driving module 300 can move within a two-dimensional plane composed of the X and Y axes, and, combined with instructions from the trajectory control system, can achieve preset complex motion trajectories. Mechanized precision driving replaces manual operation, ensuring standardization of each stimulus.

[0028] In this embodiment, as Figure 1 and Figure 2 As shown, the two-dimensional trajectory driving module 300 includes a first driving component 310 and a second driving component 320. The driving end of the first driving component 310 is connected to the second driving component 320, and the first driving component 310 is used to drive the second driving component 320 to move in the X-axis direction; The driving end of the second driving component 320 is connected to the sample execution unit 400, and the second driving component 320 is used to drive the sample execution unit 400 to move in the Y-axis direction.

[0029] The two-dimensional trajectory drive module 300 is refined into independent first drive component 310 and second drive component 320, each responsible for movement in the X and Y axes respectively. This enables the device to achieve higher precision control over the tactile stimulation path. The modular design not only simplifies the complexity of the trajectory control system, allowing for independent programming and optimization of X and Y axis movements, but also significantly improves the flexibility and response speed of the sample execution unit 400 in the two-dimensional plane. This provides a more realistic and repeatable stimulation effect for testing scenarios requiring precise simulation of different textile tactile trajectories, thereby enhancing the overall performance of the forearm textile tactile stimulation device.

[0030] Furthermore, such as Figure 1 and Figure 2 As shown, the first driving component 310 includes: The first drive mounting base 311 is fixedly mounted on the base platform 100. The first drive mounting base 311 is a structural component used to support and fix other components of the first drive assembly 310. The first servo motor 312 is mounted on one end of the first drive mounting base 311 and fixed on the base platform 100. The first lead screw 313 is movably positioned on the first drive mounting base 311, and one end of the first lead screw 313 is connected to the drive end of the first servo motor 312. A first nut seat (not shown) is drivenly mounted on a first lead screw 313, and a second drive assembly 320 is mounted on the first nut seat (not shown).

[0031] By fixing the first drive mounting base 311 onto the base platform 100, a stable support is provided for the first drive assembly 310. The first servo motor 312 is mounted on one end of the first drive mounting base 311 and fixed onto the base platform 100, ensuring a stable output of driving force. The first lead screw 313 is movably positioned on the first drive mounting base 311, with one end connected to the drive end of the first servo motor 312. A first nut seat (not shown) is driven onto the first lead screw 313, and the second drive assembly 320 is mounted on the first nut seat (not shown).

[0032] When the trajectory control system issues a working command, the first servo motor 312 drives the first lead screw 313 to rotate. The rotation of the first lead screw 313, through thread engagement, causes the first nut seat (not shown) mounted thereon to move linearly along the axial direction of the first lead screw 313. Since the second drive assembly 320 is mounted on the first nut seat (not shown), the second drive assembly 320 can be driven to move in the X-axis direction.

[0033] In this embodiment, as Figure 1 and Figure 2 As shown, the second driving component 320 includes: The second drive mounting base 321 is fixedly connected to the drive end of the first drive assembly 310. The second servo motor 322 is mounted on one end of the second drive mounting base 321; The second lead screw 323 is movably positioned on the second drive mounting base 321, and one end of the second lead screw 323 is connected to the drive end of the second servo motor 322. The second nut seat (not shown) is drivenly mounted on the second lead screw 323, and the sample execution unit 400 is mounted on the second nut seat (not shown).

[0034] When the trajectory control system sends a working command, the second servo motor 322 receives the command and rotates. Its drive end transmits the rotational power to the second lead screw 323 through a coupling or other means. The second lead screw 323 rotates under the support of the second drive mounting base 321 and is converted into linear motion of the second nut seat (not shown). Since the sample execution unit 400 is mounted on the second nut seat (not shown), the sample execution unit 400 can move with the second nut seat (not shown) in the Y-axis direction. At the same time, the entire second drive assembly 320 is fixedly connected to the drive end of the first drive assembly 310 through the second drive mounting base 321, so that the second drive assembly 320 can move with the first drive assembly 310 in the X-axis direction while performing movement in the Y-axis direction. This cooperative working mechanism ensures that the sample execution unit 400 can achieve trajectory movement in the XY two-dimensional plane.

[0035] In this embodiment, as Figure 1 and Figure 2 As shown, the sample execution unit 400 includes: Sample mounting assembly 410, which is used to mount the textile to be tested; A clamping assembly 420 is installed at the output end of the two-dimensional trajectory drive module 300, and the clamping assembly 420 is used to clamp and position the sample mounting assembly 410.

[0036] Preferably, the sample mounting assembly 410 includes: A flat plate holder 411, one side of which is used to place the textile to be tested; Two positioning bosses 412 and two clamping plates 426 used in conjunction with the positioning bosses 412 are provided. The two positioning bosses 412 are spaced apart on the flat plate bracket 411 and cooperate with the flat plate bracket 411 to form an elastic movement area of ​​the textile to be tested. The two clamping plates 413 cooperate with the corresponding positioning bosses 412 to clamp and position the textile to be tested. At least four uprights 414 are provided adjacent to the positioning boss 412, and the uprights 414 are used to fix the clamping piece 413 to the clamping plate 426 by means of a fastener.

[0037] Specifically, the flat support 411 is a support structure with a flat surface, whose main function is to provide a stable base plane for placing and supporting the textile to be tested. The positioning boss 412 can be a protrusion integrally formed on the flat support 411, or an independent component fixed to the flat support 411 by screws, adhesives, etc. Its shape and size can be designed according to the type of textile and testing requirements. The two clamps 413 are plate-shaped components used in conjunction with the positioning boss 412, their function being to clamp and position the textile to be tested together with the positioning boss 412. The clamps 413 can be made of a similar material to the flat support 411, and their inner surfaces can be designed with structures that cooperate with the positioning boss 412 to enhance the clamping effect. The elastic movable area refers to the area between the positioning boss 412 and the clamps 413, where the textile can deform or stretch to a certain extent after being fixed. Its function is to ensure that the textile can produce realistic tactile feedback when stimulated, simulating the state during actual wear or use, and avoiding excessive stretching or loosening. At least four uprights 414 are support structures perpendicular to the surface of the flat plate bracket 411. Their function is to support and fix the clamping pieces 413 so that they can cooperate with the positioning bosses 412 to clamp the textile. The uprights 414 can be fixed to the flat plate bracket 411 by screws, pins or other fasteners.

[0038] The proposed solution places the textile to be tested on one side of a flat plate support 411, and clamps and positions the textile using two spaced-apart positioning bosses 412 and two cooperating clamps 426. The cooperation between the positioning bosses 412 and the clamps 413 not only defines the placement area of ​​the textile, but more importantly, forms an elastic movement area with specific dimensions and tension between them. At least four uprights 414 provide stable support and fixing points for the clamps 413, which are securely connected to the uprights 414 by fasteners, ensuring uniform distribution of clamping force and stability of the textile during testing. This structural design allows the textile to remain flat after clamping, avoiding wrinkles and displacement, while its elastic movement area allows the textile to generate realistic deformation feedback during tactile stimulation, thus ensuring the accuracy and consistency of tactile stimulation. Compared to simply installing the textile, this solution, through a structured positioning and clamping mechanism, solves the problems of unstable textile fixation, unclear stimulation area, and unrealistic tactile feedback, improving the reliability of the test.

[0039] As a preferred option, such as Figure 1 and Figure 2 As shown, the clamping assembly 420 includes: Frame 421; A clamping member 422 is installed on the upper end of the upright 421. The clamping member 422 includes a first elastic arm 423 and a second elastic arm 424 arranged opposite to each other. The ends of the first elastic arm 423 and the second elastic arm 424 are respectively provided with a first fastening edge 4231 and a second fastening edge 4241. A first protrusion 4232 is provided on the first elastic arm 423 and a second protrusion 4242 is provided on the second elastic arm 424 opposite to the first protrusion 4232. A clamping bolt 425 is provided on the first elastic arm 423. The clamping bolt 425 passes through the first protrusion 4232 and the second protrusion 4242 in sequence and is threadedly connected to the first elastic arm 423 and the second elastic arm 424. The first elastic arm 423 and the second elastic arm 424 are moved closer or further apart by rotating the clamping bolt 425. A clamping plate 426 is fixed on the sample mounting assembly 410. The clamping plate 426 is used to clamp the sample mounting assembly 410 by the clamping member 422 to position the sample mounting assembly 410.

[0040] The support frame 421 serves as the supporting structure for the clamping assembly 420, providing a stable mounting base for the clamping member 422. The clamping member 422 is the component that clamps the sample mounting assembly 410. Its function is to securely fix the sample mounting assembly 410 in a predetermined position using mechanical force. The clamping member 422 can be integrally molded from an elastic material.

[0041] In the clamping member 422, the first elastic arm 423 and the second elastic arm 424 are components of the clamping member 422. The first elastic arm 423 and the second elastic arm 424 are arranged opposite to each other and generate clamping force through their own elastic deformation. The first snap edge 4231 and the second snap edge 4241 are respectively provided at the ends of the first elastic arm 423 and the second elastic arm 424, and are structures that directly contact the clamping plate 426 and apply clamping force. The shape of the snap edge can be designed to match the edge of the clamping plate 426, for example, it can be arc-shaped, V-shaped or a flat surface with chamfers, to increase the contact area and improve the stability of clamping. Its function is to ensure that the clamping plate 426 can be firmly gripped during clamping and to prevent the sample mounting assembly 410 from loosening or falling off during stimulation.

[0042] The first protrusion 4232 is disposed on the first elastic arm 423, and the second protrusion 4242 is disposed on the second elastic arm 424 and is disposed opposite to the first protrusion 4232. These two protrusions serve as the points of application for the force applied by the clamping bolt 425, converting the rotational motion of the bolt into the opening or closing motion of the elastic arm.

[0043] The clamping plate 426 is part of the clamping assembly 420, which is connected to the sample mounting assembly 410, and its function is to act as an interface for clamping the sample as the clamped member 422.

[0044] Specifically, the clamping member 422 is mounted on the upper end of the stand 421, providing stable support for the entire clamping operation. When it is necessary to clamp the sample mounting assembly 410, the clamping plate 426 fixed on the sample mounting assembly 410 is first inserted between the first elastic arm 423 and the second elastic arm 424. Subsequently, by rotating the clamping bolt 425 set on the first elastic arm 423, the clamping bolt 425 will pass through the first protrusion 4232 and the second protrusion 4242 in sequence, and be threadedly connected to the first elastic arm 423 and the second elastic arm 424. The rotational movement of the clamping bolt 425 transmits force to the first elastic arm 423 and the second elastic arm 424 through its contact with the first protrusion 4232 and the second protrusion 4242. Since the first protrusion 4232 and the second protrusion 4242 are arranged opposite each other, the rotation of the clamping bolt 425 will cause the first elastic arm 423 and the second elastic arm 424 to gradually move closer under the action of elastic deformation. As the elastic arm approaches, the first snap edge 4231 and the second snap edge 4241, respectively, at its ends, tightly clamp the clamping plate 426. This clamping method utilizes the elastic deformation of the elastic arm to provide a stable and adjustable clamping force, thereby firmly positioning the sample mounting assembly 410 at the output end of the two-dimensional trajectory drive module 300.

[0045] In this embodiment, as Figure 1 and Figure 2 As shown, the support arm unit 200 includes: A first support bracket 210 and a second support bracket 220 are arranged at intervals between each other. The first support bracket 210 and the second support bracket 220 are fixedly installed on the base platform 100. The first support bracket 210 and the second support bracket 220 are used to support the arm of the test subject.

[0046] The arm support unit 200 is a component used to support the test subject's arm. Its core function is to provide stable and comfortable support for the forearm, ensuring that the arm can maintain a preset position during tactile stimulation and avoiding unnecessary movement.

[0047] The first support bracket 210 and the second support bracket 220 are specific components of the arm support unit 200. They are spaced apart from each other in space to provide multi-point support for the arm of the test subject, thereby effectively dispersing the pressure on the arm and improving the stability and comfort of the support.

[0048] Preferred, such as Figure 1 and Figure 2 As shown, the support arm unit 200 further includes: A gripping component 230 is rotatably mounted on a second support bracket 220; The gripping component 230 includes: A rotating base plate 231 is rotatably mounted on a second support bracket 220; Positioning vertical plate 232, which is fixedly installed on rotating base plate 231; Handle 233, which is fixedly installed on positioning vertical plate 232.

[0049] By adding a grip component 230 to the support arm unit 200 and rotatably mounting it on the second support bracket 220, an adjustable and stable hand anchor point is provided for the test subject. When the test subject places their forearm on the first support bracket 210 and the second support bracket 220, their hand can naturally grip the handle 233. The rotatability of the rotating base plate 231 allows the handle 233 to be angled around the mounting point of the second support bracket 220, thus allowing the test subject to adjust the relative posture of their hand and forearm according to their own comfort or testing requirements. The positioning plate 232 ensures that the handle 233 is at a suitable height and position for easy gripping.

[0050] Secondly, such as Figure 3 and Figure 4 As shown, Figure 4 The middle arrow indicates the direction of the movement trajectory of the sample execution unit. This embodiment provides a method for tactile stimulation of forearm textiles, which is applied to the forearm textile tactile stimulation device described above, including: Step S1: Place the subject's forearm on the support unit; Step S2: Fix the textile sample to be tested onto the sample execution unit; Step S3: The trajectory control system controls the two-dimensional trajectory drive module 300 to drive the sample execution unit to carry the textile sample along a preset running trajectory on the surface of the subject's forearm, wherein the running trajectory includes: The sample execution unit starts from the first motion starting point far from the elbow end of the forearm and is driven by the first drive component to move along the longitudinal direction of the forearm toward the elbow end, until it reaches the elbow end of the forearm. The sample execution unit starts from the elbow end of the forearm and is driven to translate laterally along the forearm through the second drive assembly, reaching the wrist end of the forearm. The sample execution unit starts from the forearm wrist end and is driven by the first drive component to move along the longitudinal direction of the forearm toward the wrist end away from the second motion starting point, and reaches the second motion starting point. Step S4: After completing a single loop, repeat step S3 or repeat step S3 along the reverse running trajectory until the set number of tests is reached.

[0051] First, place the subject's forearm on the armrest unit 200, which aims to provide stable support for the subject's forearm in the tactile stimulation test, ensuring the position stability and comfort of the forearm during the test process.

[0052] Fix the textile sample to be tested on the specimen execution unit, ensuring that the textile sample to be tested can be stably connected to the specimen execution unit 400 and perform precise trajectory movements therewith, so as to accurately apply the tactile stimulation to the subject's forearm.

[0053] Controlling the two-dimensional trajectory drive module 300 through the trajectory control system to drive the specimen execution unit carrying the textile sample to move along a preset operation trajectory on the surface of the subject's forearm is the core of achieving precise tactile stimulation. The trajectory control system sends instructions and coordinates movements to the two-dimensional trajectory drive module 300, so that the specimen execution unit carrying the textile sample can move on the surface of the subject's forearm according to the predetermined path and speed.

[0054] The operation trajectory is specifically as follows: the specimen execution unit starts from the first motion start point far away from the elbow end of the forearm, is driven by the first drive assembly 310 to move along the longitudinal direction of the forearm toward the elbow end, and reaches the elbow end of the forearm; the specimen execution unit starts from the elbow end of the forearm, is driven by the second drive assembly 320 to translate along the transverse direction of the forearm, and reaches the wrist end of the forearm; the specimen execution unit starts from the wrist end of the forearm, is driven by the first drive assembly 310 to move along the longitudinal direction of the forearm toward the wrist direction to the second motion start point far away from the wrist end of the forearm, and reaches the second motion start point. Thereby, a "U"-shaped (open-sided) motion trajectory is formed.

[0055] The tactile stimulation process method of the present application realizes the standardization and automation of textile tactile stimulation on the surface of the subject's forearm by systematically arranging and executing a series of operation steps.

[0056] First, the subject's forearm is stably placed on the support unit 200. Then, the textile sample to be tested is securely fixed to the sample execution unit, ensuring stable contact between the sample and the forearm surface during movement. The core of the system lies in the precise control of the two-dimensional trajectory drive module 300 by the trajectory control system. According to a preset program, the trajectory control system sends instructions to the two-dimensional trajectory drive module 300, driving the sample execution unit to carry the textile sample and move along a specific trajectory on the forearm surface. This trajectory is carefully designed to include a composite motion of longitudinal and lateral movements: First, the sample execution unit slides at a constant speed along the longitudinal direction of the forearm from a first starting point far from the elbow to the elbow via the first drive component 310, simulating a long-distance friction sensation; then, it moves laterally along the forearm from the elbow to the wrist via the second drive component 320, covering the width of the forearm; finally, it slides again along the longitudinal direction of the forearm from the wrist to a second starting point far from the wrist via the first drive component 310, completing the full stimulation cycle. After completing a single cycle, the method allows for the repetition of the stimulation steps described above, or the option to repeat stimulation along a reverse trajectory until a preset number of tests is reached. This enables researchers to assess the impact of different stimulation patterns (unidirectional or reciprocating) on ​​tactile sensation. Through this process, the method of this application is closely integrated with a forearm textile tactile stimulation device, transforming the device's hardware capabilities into a repeatable tactile stimulation experimental protocol. This solves the problems of inconsistent stimuli and incomparable results in traditional tactile testing, providing technical support for the objective evaluation of textile tactile performance.

[0057] In summary, the forearm textile tactile stimulation device and tactile stimulation process method provided in this embodiment achieves controllability of the friction path trajectory by moving the two-dimensional trajectory drive module 300 in the X-axis and Y-axis planes. This solves the problem of parameter fluctuation caused by manual operation in the prior art. It has the advantages of being able to accurately control the friction path trajectory, realize accurate planning of the two-dimensional trajectory, reduce fluctuations in experimental results, and improve the reliability and comparability of subjective evaluation data.

[0058] Finally, it should be noted that the above-described embodiments are merely specific implementations of this disclosure, used to illustrate the technical solutions of this disclosure, and not to limit them. The protection scope of this disclosure is not limited thereto. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features within the scope of the technology disclosed in this disclosure. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure, and should all be covered within the protection scope of this disclosure.

Claims

1. A forearm textile tactile stimulation device, characterized in that, include: A base platform that provides an open testing base space; The arm support unit is mounted on the base platform and is used to support the arm of the test subject. A two-dimensional trajectory driving module is mounted on a base platform, and the output end of the two-dimensional trajectory driving module is configured to move within a two-dimensional plane composed of the X-axis and the Y-axis. A sample execution unit is connected to the output end of the two-dimensional trajectory drive module. A trajectory control system, which is electrically connected to the two-dimensional trajectory drive module; When the system receives an operation signal from the user or a detection signal from the forearm textile tactile stimulation device, the trajectory control system sends a working instruction, and the two-dimensional trajectory drive module works according to the working instruction.

2. The forearm textile tactile stimulation device according to claim 1, characterized in that: The two-dimensional trajectory driving module includes a first driving component and a second driving component; The driving end of the first driving component is connected to the second driving component, and the first driving component is used to drive the second driving component to move in the X-axis direction; The driving end of the second driving component is connected to the sample execution unit, and the second driving component is used to drive the sample execution unit to move in the Y-axis direction.

3. The forearm textile tactile stimulation device according to claim 2, characterized in that, The first driving component includes: The first drive mounting base is fixedly mounted on the base platform; A first servo motor is mounted on one end of a first drive mounting base and fixed to a base platform. The first lead screw is movably positioned on the first drive mounting base, and one end of the first lead screw is connected to the drive end of the first servo motor. A first nut seat is driven and mounted on a first lead screw, and a second drive assembly is mounted on the first nut seat.

4. The forearm textile tactile stimulation device according to claim 2, characterized in that, The second driving component includes: The second drive mounting base is fixedly connected to the drive end of the first drive assembly; The second servo motor is mounted on one end of the second drive mounting base; The second lead screw is movably positioned on the second drive mounting base, and one end of the second lead screw is connected to the drive end of the second servo motor. The second nut seat is driven and mounted on the second lead screw, and the sample execution unit is mounted on the second nut seat.

5. The forearm textile tactile stimulation device according to claim 1, characterized in that, The sample execution unit includes: A sample mounting assembly for mounting the textile to be tested; A clamping assembly is installed at the output end of the two-dimensional trajectory drive module and is used to clamp and position the sample mounting assembly.

6. The forearm textile tactile stimulation device according to claim 5, characterized in that, The sample mounting assembly includes: A flat plate holder, one side of which is used to place the textile to be tested; Two positioning bosses and two clamping pieces used in conjunction with the positioning bosses. The two positioning bosses are spaced apart on the flat plate support and together with the flat plate support form the elastic movement area of ​​the textile to be tested. The two clamping pieces cooperate with the corresponding positioning bosses to clamp and position the textile to be tested. At least four uprights are provided adjacent to the positioning boss, and the uprights are detachably connected to the clamping plate.

7. The forearm textile tactile stimulation device according to claim 5, characterized in that, The clamping assembly includes: Erecting the frame; A clamping member is installed on the upper end of the upright. The clamping member includes a first elastic arm and a second elastic arm arranged opposite to each other. The ends of the first elastic arm and the second elastic arm are respectively provided with a first fastening edge and a second fastening edge. A first protrusion is provided on one part of the first elastic arm and a second protrusion is provided on one part of the second elastic arm, which is arranged opposite to the first protrusion. A clamping bolt is provided on the first elastic arm. The clamping bolt passes through the first protrusion and the second protrusion in sequence and is threadedly connected to the first elastic arm and the second elastic arm. The first elastic arm and the second elastic arm are moved closer or further apart by rotating the clamping bolt. A clamping plate is fixed to the sample mounting assembly and is used to clamp the sample mounting assembly to position it.

8. The forearm textile tactile stimulation device according to claim 1, characterized in that, The support arm unit includes: A first support bracket and a second support bracket are arranged at intervals between each other. The first support bracket and the second support bracket are fixedly installed on the base platform. The first support bracket and the second support bracket are used to support the arm of the test subject.

9. The forearm textile tactile stimulation device according to claim 8, characterized in that, The support arm unit also includes: A gripping assembly, which is rotatably mounted on a second support bracket; The gripping component includes: A rotating base plate, which is rotatably mounted on a second support bracket; A positioning vertical plate is fixedly installed on a rotating base plate; The handle is fixedly installed on the positioning vertical plate.

10. A method for tactile stimulation of forearm textiles, wherein the forearm textile tactile stimulation device as described in any one of claims 1 to 9 is characterized in that, include: Step S1: Place the subject's forearm on the support unit; Step S2: Fix the textile sample to be tested onto the sample execution unit; Step S3: The trajectory control system controls the two-dimensional trajectory driving module to drive the sample execution unit to carry the textile sample along a preset running trajectory on the surface of the subject's forearm, wherein the running trajectory includes: The sample execution unit starts from the first motion starting point far from the elbow end of the forearm and is driven by the first drive component to move along the longitudinal direction of the forearm toward the elbow end, until it reaches the elbow end of the forearm. The sample execution unit starts from the elbow end of the forearm and is driven to translate laterally along the forearm through the second drive assembly, reaching the wrist end of the forearm. The sample execution unit starts from the forearm wrist end and is driven by the first drive component to move along the longitudinal direction of the forearm toward the wrist end away from the second motion starting point, and reaches the second motion starting point. Step S4: After completing a single loop, repeat step S3 or repeat step S3 along the reverse running trajectory until the set number of tests is reached.

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