A soft touch reproduction device and method and an online shopping method based on soft touch reproduction

Abstract

The invention discloses a soft touch reproduction device and method and an online shopping method based on touch reproduction, comprising an electromagnetic device, a soft touch simulation matrix and a tensioning mechanism; a magnetorheological fluid is arranged in the soft touch simulation matrix, and two ends are fixed on two parts of the tensioning mechanism; according to the soft touch characteristic value obtained by testing a soft touch quantification device, the distance between the two parts of the tensioning mechanism and the current flowing through the electromagnetic device are set to reproduce the real soft touch, and the soft touch will become harder as the degree of pressing increases, which is consistent with the touch of a real object, and the reproduced soft touch is monitored in real time, and the error is corrected after comparison with the real touch; the soft touch characteristic value is simultaneously transmitted to a virtual reality system, and a textile corresponding to the soft touch characteristic value is constructed in a virtual reality environment, and the touch and vision are simultaneously reproduced to the user, so that the user can experience the on-site touch and visual feelings when shopping online.

Description

Technical Field

[0001] The present invention relates to the technical field of touch reproduction, in particular to a soft touch reproduction device and method and an online shopping method based on the soft touch reproduction. Background Art

[0002] To evaluate the practical value of clothing, we first need to perceive its comfort when wearing it. Only when it is comfortable can clothing be helpful for daily work and life; the second is its appearance. Only beautiful clothing will be chosen for purchase. Nowadays, people buy clothing mainly through visual perception of its comfort, and judge the softness and roughness of clothing based on the clothing pictures and some characteristic data seen by the eyes. Because of the angle of the picture shooting, the difference in light, and the problem that the characteristic data cannot be quantified, the actual touch of clothing is often very different from the subjective judgment of the touch. It is far from enough to choose a comfortable piece of clothing that meets the touch needs if it cannot be truly perceived. Therefore, the research on the reproduction of touch such as softness is particularly meaningful.

[0003] Chinese patent CN 111923034A discloses a soft finger with variable stiffness and its control method. A magnetorheological fluid channel is provided in the finger segment along the axial direction. The magnetic field strength is controlled by the electrodes on the knuckles, and then the hardness of the magnetorheological fluid is controlled, so that the flexible finger has the advantages of both rigid and flexible fingers, and reproduces the stiffness and softness of the finger. Chinese patent CN105138223A discloses a method for reproducing the softness of an object based on a finger sleeve type force tactile interaction device. By controlling the amplitude and vibration rhythm of the piezoelectric actuator, the force during the pressing process of the human hand and the softness and hardness characteristics of the virtual object are simulated, thereby reproducing the soft feeling.

[0004] The above methods reproduce the softness of the object, but the softness of the reproduced soft touch is controlled by a single variable, and cannot accurately reproduce the real soft touch. It is common knowledge that the touch of an object is softer under normal conditions than when it is compressed, but the existing technology cannot change the softness of the reproduced touch according to the degree of pressure, that is, it cannot perceive the dynamic changes of the soft touch, nor can it correct the reproduced touch by comparing the difference between the reproduced touch and the real touch. Summary of the invention

[0005] In view of this, the present invention aims at the technical problem that the above-mentioned prior art cannot accurately reproduce the soft touch, and provides a device and method that can accurately reproduce the soft touch of an object and an online shopping method based on touch reproduction.

[0006] The technical solution of the present invention is to provide a soft touch reproduction device with the following structure, including an electromagnetic device, a soft feeling simulation matrix and a tensioning mechanism, wherein the soft feeling simulation matrix is ​​located above the electromagnetic device; a magnetorheological fluid is arranged in the soft feeling simulation matrix, and the two ends of the soft feeling simulation matrix are fixed on two parts of the tensioning mechanism, and the distance between the two parts of the tensioning mechanism is adjustable; the attraction of the electromagnetic device to the magnetorheological fluid arranged in the soft feeling simulation matrix is ​​adjusted by adjusting the current flowing through the electromagnetic device; according to the soft touch characteristic value, the distance between the two parts of the tensioning mechanism and the current flowing through the electromagnetic device are set to reproduce the soft touch.

[0007] Optionally, the soft-feeling simulation matrix includes an elastic band and a magnetorheological fluid, a cavity for accommodating the magnetorheological fluid is provided in the middle of the elastic band, the magnetorheological fluid is placed in the cavity, the elastic band is embedded with conductive fibers, the conductive fibers are made of soft material, and the soft touch reproduction device also includes a resistance value monitoring device, which is connected to the conductive fibers and is used to monitor the resistance value of the conductive fibers embedded in the upper surface of the soft-feeling simulation matrix in real time.

[0008] Optionally, the tensioning mechanism includes a T-shaped connecting plate a, a T-shaped connecting plate b, two pressure plates and an adjusting device, and the two ends of the elastic band are horizontally fixed between the T-shaped connecting plate a, the T-shaped connecting plate b and the corresponding pressure plates, and the T-shaped connecting plate a and the T-shaped connecting plate b are respectively connected to the adjusting device, and the adjusting device is used to adjust the distance between the T-shaped connecting plate a and the T-shaped connecting plate b.

[0009] Optionally, the adjusting device includes a motor, a bidirectional screw and two screw workbenches, the motor is connected to the bidirectional screw, the two screw workbenches are screwed onto the bidirectional screw, and the T-shaped connecting plate a and T-shaped connecting plate b are respectively connected to the two screw workbenches.

[0010] Optionally, the electromagnetic device includes a coil and a magnetic core, the coil is sleeved on the magnetic core, and the coil is powered by a power supply.

[0011] Optionally, when reproducing the soft touch, according to the soft touch characteristic value, the distance between the T-type connecting plate a and the T-type connecting plate b and the current flowing through the coil are preset, the power supply supplies power to the motor and the coil to reach the preset current, and the motor drives the bidirectional screw to rotate forward, so that the two screw workbenches move away from each other, so that the distance between the T-type connecting plate a and the T-type connecting plate b reaches a preset distance, the elastic band is stretched, and the force required by the finger to move it downward by the same distance becomes larger, and the softness decreases. Conversely, the required force becomes smaller, and the softness increases. When the elastic band is pressed by the finger and approaches the coil, the magnetic field strength to which the magnetorheological fluid in the elastic band is subjected is enhanced, causing the magnetorheological fluid to The yield strength increases and the softness decreases. When the elastic band is pressed down, the conductive fibers embedded therein are also stretched and their resistance values ​​change. The resistance value monitoring device monitors the average value of the resistance value change rate of the conductive fibers, and compares the soft touch level corresponding to the value with the soft touch level reproduced by the device to see if they are consistent. If they are inconsistent, a signal is transmitted to the electromagnetic device and the tensioning mechanism, thereby changing the magnetic field strength generated by the coil and the distance between the T-type connecting plate a and the T-type connecting plate b, and continuing to monitor and correct until the error between the reproduced touch and the real touch is eliminated, thereby realizing real-time feedback correction of control parameters and dynamic reproduction of touch.

[0012] The second technical solution of the present invention is to provide a soft touch reproduction method, which is based on a soft touch reproduction device. According to the soft touch characteristic value, the distance between the two parts of the tensioning mechanism and the current flowing through the electromagnetic device are set. The finger presses down on the soft touch simulation matrix, and the soft touch felt by the finger is the soft touch reproduced by the corresponding soft touch characteristic value; by changing the distance between the two parts of the tensioning mechanism and the current flowing through the electromagnetic device, the soft touch corresponding to different soft touch characteristic values ​​is obtained. When the soft touch simulation matrix is ​​pressed downward, the conductive fibers therein are stretched and their resistance value changes. The soft touch characteristic value corresponding to the average change rate of the resistance value is compared to see if it is consistent with the actual soft touch level. If not, the control parameters in the electromagnetic device and the adjustment device are corrected, and monitoring is continued until the error between the reproduced touch and the real touch is eliminated.

[0013] Optional, the specific steps to reproduce are as follows:

[0014] Step 1: Obtain the distance between the T-type connecting plate a and the T-type connecting plate b and the current intensity passing through the coil required to reproduce the soft touch from the characteristic value of the soft touch of the known object;

[0015] Step 2: Turn on the power supply to the motor, drive the bidirectional screw to rotate, the screw workbenches on both sides move away from each other, and the T-type connecting plate a and the T-type connecting plate b reach the position calculated in step 1. At the same time, the power supply provides the current calculated in step 1 to the coil to generate a magnetic field of specified strength;

[0016] Step 3: The user touches and presses down the softness simulation matrix with the fingertips. Since the initial stretching degree of the elastic band and the magnetic field strength to which the magnetorheological fluid is subjected are different when reproducing different soft touch sensations, the user can feel different degrees of softness through the softness simulation matrix. As the softness simulation matrix is ​​pressed downward, the force required for pressing gradually increases, and the magnetorheological fluid therein gradually approaches the energized coil during the downward displacement, and the magnetic field strength it is subjected to gradually increases. The dynamically changing soft touch sensation can be felt through the softness simulation matrix.

[0017] Step 4: Monitor the average value of the change rate of the conductive fiber resistance value, and compare the soft touch level corresponding to the value with the actual soft touch characteristic value. If not, transmit a signal to the electromagnetic device and the tensioning mechanism, thereby changing the magnetic field strength generated by the coil and the distance between the T-type connecting plate a and the T-type connecting plate b, until the error between the reproduced touch and the real touch is eliminated, thereby realizing real-time feedback correction of the control parameters and dynamic reproduction of the touch.

[0018] Optionally, the characteristic value of the soft touch is obtained by testing a soft touch quantification device, and the relationship between the characteristic value of the soft touch and the distance between the T-shaped connecting plate a and the T-shaped connecting plate b and the current intensity passing through the coil is established by calculation or simulation.

[0019] The third technical solution of the present invention is to provide a method for online shopping of textiles based on soft touch reproduction, in which soft touch characteristic values ​​are marked on the online shopping interface, and users reproduce the soft touch characteristic values ​​by touch based on the soft touch reproduction device to assist in the selection and decision-making of textile items. The soft touch characteristic values ​​are simultaneously transmitted to the virtual reality system, and textiles corresponding to the soft touch characteristic values ​​are constructed in the virtual reality environment. Through the soft touch reproduction device and the virtual reality system, the touch and vision are simultaneously reproduced to the user, allowing the user to experience the on-site tactile and visual perception when shopping for textiles online.

[0020] Compared with the prior art, the present invention has the following advantages: by adopting the present invention, the distance and the current are set according to the soft touch characteristic value to reproduce the real soft touch, rather than judging the softness of the textile by vision and object characteristics, and the soft touch will become harder as the degree of pressure increases, which is consistent with the change of soft touch when the real object is pressed. It is applied to the textile and other industries to realize remote perception of soft touch, and can be used for auxiliary decision-making in online shopping. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an isometric view of the soft touch reproduction device of the present invention.

[0022] Figure 2Isometric view of the base body to simulate the soft feel.

[0023] In the figure: support plate 1, motor 2, motor seat 3, coupling 4, screw seat a5, cushion block 6, guide rod workbench 7, T-shaped connecting plate a8, guide rod 9, guide rod seat 10, T-shaped connecting plate 11, screw seat b12, bidirectional screw 13, screw workbench 14, pressing plate 15, elastic belt 16, magnetorheological fluid 17, coil 18, power supply 19, resistance value monitoring device 20, conductive fiber 21. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, the drawings of the present invention are not drawn completely and accurately according to the actual scale for the purpose of illustration, which is explained here.

[0026] like Figure 1 As shown, a device capable of reproducing a soft touch feeling of the present invention comprises a support plate 1, a tensioning mechanism, a soft feeling simulation substrate, a coil and a power supply, wherein the tensioning mechanism, the coil and the power supply are all mounted on the support plate 1, and the soft feeling simulation substrate is mounted in the tensioning mechanism and placed above the coil. The tensioning mechanism comprises a motor 2, a motor seat 3, a coupling 4, a screw seat a5, a cushion block 6, a guide rod workbench 7, a T-shaped connecting plate a8, a guide rod 9, a guide rod seat 10, a T-shaped connecting plate b11, a screw seat b12, a bidirectional screw 13, a screw workbench 14 and a pressing plate 15, wherein the motor 2 is arranged on the motor seat 3, and its output end is connected to the bidirectional screw 13 through the coupling 4, and the two ends of the bidirectional screw 13 are respectively sleeved on the screw seat a5 and the screw seat b12, and a screw workbench 14 is respectively mounted on the positive and negative threads, and the guide rod 9 is installed in parallel with the bidirectional screw 13, and the two ends are respectively provided with a screw seat a5 and a screw seat b12, and a screw workbench 14 is respectively installed on the positive and negative threads, and the guide rod 9 is installed in parallel with the bidirectional screw 13, and the two ends are respectively provided with a screw seat a5 and a screw seat b12, and the two ends are respectively provided with a screw seat a5 and a screw seat b12, and the two ends are respectively provided with a screw seat a4 and a screw workbench 14 ... A guide rod seat 10 installed on a cushion block 6 is fixed, and the cushion block 6 is installed on the support plate 1. The vertical surfaces of the T-shaped connecting plate a8 and the T-shaped connecting plate b11 are respectively spanned between the screw workbench 14 and the guide rod workbench 7 on the same side, and a pressure plate 15 is supported on the horizontal surface. The guide rod workbench 7 is installed on the guide rod 9 and slides along the guide rod 9; the soft feeling simulation matrix includes an elastic band 16 and a magnetorheological fluid 17, and the magnetorheological fluid 17 is placed in the cavity below the elastic band 16, and the two ends of the elastic band 16 are respectively fixed between the horizontal surfaces of the T-shaped connecting plate a8, the T-shaped connecting plate b11 and the pressure plate 15.

[0027] like Figure 1 and2 As shown, the elastic band 16 includes a cavity below, and the cavity is filled with magnetorheological fluid 17. When reproducing the soft touch, the power supply 19 supplies power to the motor 2 and the coil 18, and the motor 2 drives the bidirectional screw 13 to rotate forward, so that the screw worktables 14 on the forward and reverse threads move away from each other, and the distance between the T-type connecting plate a8 and the T-type connecting plate b11 increases. The elastic band 16 is stretched, and the force required for the finger to move it downward by the same distance becomes larger, and the softness decreases. Conversely, the required force becomes smaller, and the softness increases. When the elastic band 16 is pressed by the finger and approaches the coil 18, the magnetic field strength to which the magnetorheological fluid 17 in the elastic band 16 is increased, so that the yield strength of the magnetorheological fluid 17 increases and the softness decreases. The magnetic field strength of the magnetic field generated by the coil 18 can be controlled by controlling the current intensity passing through the coil 18, so that different softness can be reproduced when the magnetorheological fluid 17 moves downward to the same position after the elastic band is compressed.

[0028] The specific reproduction steps of the device are as follows: first, the distance between the T-type connecting plate a8 and the T-type connecting plate b11 and the current intensity passing through the coil 18 required to reproduce the soft touch are calculated based on the characteristic value of the soft touch of the known object, and then the power supply 19 is turned on to supply power to the motor 2, driving the bidirectional screw 13 to rotate, and the screw workbenches 14 on both sides move away from each other, and the T-type connecting plate a8 and the T-type connecting plate b11 reach the position calculated in step 1. At the same time, the power supply 19 provides the current calculated in step 1 to the coil 18 to generate a magnetic field of a specified intensity. Then the user touches and presses down the softness simulation matrix with the fingertips. Since the initial stretching degree of the elastic band 16 and the magnetic field strength to which the magnetorheological fluid 17 is subjected are different when reproducing different soft touch sensations, the user can feel different softness degrees through the softness simulation matrix. As the softness simulation matrix is ​​pressed downward, the force required for pressing gradually increases, and as the magnetorheological fluid 17 moves downward, it gradually approaches the energized coil 18, and the magnetic field strength to which it is subjected gradually increases. The dynamically changing soft touch sensation can be felt through the softness simulation matrix.

[0029] The present invention is further described below with reference to a specific embodiment.

[0030] Five typical samples with known soft touch characteristic values ​​were selected, and the distance between the T-type connecting plate a and the T-type connecting plate b and the current intensity passing through the coil required to reproduce their touch were calculated based on their soft touch characteristic values. The soft touch characteristic values ​​of the samples, the distance D between the T-type connecting plate a and the T-type connecting plate b, and the current intensity I passing through the coil are shown in Table 1.

[0031] Table 1: Sample soft touch characteristic values ​​and control parameters

[0032]

[0033] Then turn on the power supply to the motor to drive the bidirectional lead screw to rotate, and the lead screw workbenches on both sides move away from each other to a specified distance, and the T-type connecting plate a and the T-type connecting plate b reach the calculated position. At the same time, the power supply provides the calculated current to the coil to generate a magnetic field of a specified strength. Then the user's fingertips touch and press down the soft feeling simulation matrix, and the conductive fibers therein are stretched, and their resistance values ​​change. The soft touch characteristic value corresponding to the average value of the resistance value change rate is compared with the actual soft touch characteristic value to see if they are consistent. If not, correct the control parameters in the electromagnetic device and the adjustment device, and continue monitoring until the error between the reproduced touch and the real touch felt by the finger is eliminated. After the feeling is completed, lift the finger, control the motor to drive the bidirectional lead screw back to the starting position, turn off the power, and a simulation ends.

[0034] The above only describes the preferred embodiments of the present invention, but it should not be understood as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. In short, all changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. A soft touch reproduction device, comprising an electromagnetic device, a soft touch simulation substrate and a tensioning mechanism, wherein the soft touch simulation substrate is located above the electromagnetic device; characterized in that: The electromagnetic device comprises a coil (18), the soft feeling simulation matrix comprises an elastic band (16) and a magnetorheological fluid (17), the tensioning mechanism comprises a T-shaped connecting plate a (8) and a T-shaped connecting plate b (11), and the two ends of the soft feeling simulation matrix are fixed on the tensioning mechanism. When reproducing the soft touch feeling, according to the soft touch characteristic value, the distance between the T-shaped connecting plate a (8) and the T-shaped connecting plate b (11) and the current flowing through the coil (18) are preset, and the elastic band (16) is stretched. When the finger moves the elastic band (16) downward by the same distance, the force required increases accordingly, and the softness decreases. On the contrary, the force required decreases, and the softness increases. When the elastic band (16) is pressed by the finger and approaches the coil (18), the magnetorheological fluid in the elastic band (16) The magnetic field strength to which the fluid (17) is subjected is enhanced, so that the yield strength of the magnetorheological fluid (17) is increased and the softness is reduced. When the elastic band (16) is pressed down, the conductive fibers (21) embedded therein are also stretched, and their resistance value changes. Based on the average value of the resistance value change rate of the conductive fibers (21) monitored, the soft touch characteristic value corresponding to the average value is compared with the real soft touch characteristic value to determine whether they are consistent. If they are inconsistent, a signal is transmitted to the electromagnetic device and the tensioning mechanism, thereby changing the magnetic field strength generated by the coil (18) and the distance between the T-shaped connecting plate a (8) and the T-shaped connecting plate b (11), until the error between the reproduced touch and the real touch is eliminated, thereby achieving real-time feedback correction of the control parameters and dynamic reproduction of the touch.

2. The soft touch reproduction device according to claim 1, characterized in that: A cavity for accommodating the magnetorheological fluid (17) is provided in the middle of the elastic band (16), and the magnetorheological fluid (17) is placed in the cavity; the elastic band (16) is embedded with conductive fibers (21), and the conductive fibers (21) are made of soft material. The soft touch reproduction device also includes a resistance value monitoring device (20), and the resistance value monitoring device (20) is connected to the conductive fibers (21) and is used to monitor the resistance value of the conductive fibers (21) embedded in the upper surface of the soft touch simulation substrate in real time.

3. The soft touch reproduction device according to claim 2, characterized in that: The tensioning mechanism also includes two pressure plates (15) and an adjusting device, the two ends of the elastic band (16) are respectively fixed horizontally between the T-shaped connecting plate a (8), the T-shaped connecting plate b (11) and the corresponding pressure plates (15), the T-shaped connecting plate a (8) and the T-shaped connecting plate b (11) are respectively connected to the adjusting device, and the adjusting device is used to adjust the distance between the T-shaped connecting plate a (8) and the T-shaped connecting plate b (11).

4. The soft touch reproduction device according to claim 3, characterized in that: The adjusting device comprises a motor (2), a bidirectional screw (13) and two screw workbenches (14); the motor (2) is connected to the bidirectional screw (13); the two screw workbenches (14) are screwed onto the bidirectional screw (13); and the T-shaped connecting plate a (8) and the T-shaped connecting plate b (11) are respectively connected to the two screw workbenches (14).

5. The soft touch reproduction device according to any one of claims 1 to 4, characterized in that: The electromagnetic device also includes a magnetic core, the coil (18) is sleeved on the magnetic core, and the coil (18) is powered by a power supply (19).

6. The soft touch reproduction device according to claim 4, characterized in that: The power supply (19) supplies power to the motor (2) and the coil (18) to reach a preset current, and the motor (2) drives the bidirectional screw (13) to rotate forward, thereby moving the two screw workbenches (14) away from each other, and achieving a preset distance between the T-shaped connecting plate a (8) and the T-shaped connecting plate b (11).

7. A method for reproducing soft touch, based on the soft touch reproducing device according to claim 1, characterized in that: According to the soft touch characteristic value, the distance between the T-type connecting plate a and the T-type connecting plate b of the tensioning mechanism and the current flowing through the electromagnetic device are set, and the soft touch sensed by the finger when the soft touch simulation matrix is ​​pressed downward is the soft touch reproduced by the corresponding soft touch characteristic value; by changing the distance between the T-type connecting plate a and the T-type connecting plate b of the tensioning mechanism and the current flowing through the electromagnetic device, the soft touch corresponding to different soft touch characteristic values ​​is obtained, when the soft touch simulation matrix is ​​pressed downward, the conductive fibers therein are stretched and their resistance value changes, and the soft touch characteristic value corresponding to the average change rate of the resistance value is compared to see whether it is consistent with the real soft touch characteristic value, if not, the control parameters in the electromagnetic device and the adjustment device are corrected, and monitoring is continued until the error between the reproduced touch and the real touch is eliminated.

8. The method for reproducing soft touch according to claim 7, characterized in that: The specific steps to reproduce are as follows: Step 1: Obtain the distance between the T-type connecting plate a and the T-type connecting plate b and the current intensity passing through the coil required to reproduce the soft touch from the characteristic value of the soft touch of the known object; Step 2: Turn on the power supply to the motor, drive the bidirectional screw to rotate, the screw workbenches on both sides move away from each other, and the T-type connecting plate a and the T-type connecting plate b reach the position calculated in step 1. At the same time, the power supply provides the current calculated in step 1 to the coil to generate a magnetic field of specified strength; Step 3: The user touches and presses the softness simulation matrix downward with the fingertips. Since the initial stretching degree of the elastic band and the magnetic field strength to which the magnetorheological fluid is subjected are different when reproducing different soft touches, the user can feel different softness through the softness simulation matrix. When the softness simulation matrix is ​​pressed downward, the force required for pressing gradually increases. In addition, when the magnetorheological fluid therein moves downward, it gradually approaches the energized coil, and the magnetic field strength to which it is subjected gradually increases. The user can feel the dynamically changing soft touch through the softness simulation matrix. Step 4: Monitor the average value of the change rate of the conductive fiber resistance value, and compare the soft touch characteristic value corresponding to the average value with the soft touch characteristic value reproduced by the device to see if they are consistent. If not, transmit a signal to the electromagnetic device and the tensioning mechanism, thereby changing the magnetic field strength generated by the coil and the distance between the T-type connecting plate a and the T-type connecting plate b, until the error between the reproduced touch and the real touch is eliminated, thereby realizing real-time feedback correction of the control parameters and dynamic reproduction of the touch.

9. The method for reproducing soft touch according to claim 8, characterized in that: The characteristic value of the soft touch is obtained by testing a soft touch quantification device, and the relationship between the characteristic value of the soft touch and the distance between the T-shaped connecting plate a and the T-shaped connecting plate b and the current intensity passing through the coil is established by calculation or simulation.

10. A method for online shopping of textiles based on soft touch reproduction, characterized in that: The soft touch characteristic value is marked on the online shopping interface, and the user reproduces the soft touch characteristic value by touch based on the soft touch reproduction device described in any one of claims 1 to 6 to assist in the selection and decision-making of textile products; the soft touch characteristic value is simultaneously transmitted to the virtual reality system, and textiles corresponding to the soft touch characteristic value are constructed in the virtual reality environment. Through the soft touch reproduction device and the virtual reality system, the touch and vision are simultaneously reproduced to the user, so that the user can experience the on-site tactile and visual perception when shopping for textiles online.

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