Textile touch reproduction device and method and online shopping method based on touch reproduction

Abstract

The invention discloses a device and method for reproducing the touch feeling of textiles and an online shopping method based on the touch feeling reproduction. The touch feeling reproduction device comprises a supporting component and a control and reproduction component, and reproduces the touch feeling of textiles from multiple touch feeling dimensions such as softness, roughness, fluffiness, coldness, warmth and tingling. The control parameters for reproducing the touch feeling of the textiles are calculated from the characteristic values ​​of the various touch feelings of the known textiles. When applied to the device, the various touch feelings of the textiles can be comprehensively reproduced through a soft feeling reproduction substrate, an electrostrictive film, a fluffiness reproduction substrate, a flexible heating sheet, a flexible cooling sheet and a conductive fiber a, and the reproduced touch feelings are monitored in real time and compared with the corresponding real touch feelings to correct the errors; the various touch feeling characteristic values ​​are simultaneously transmitted to a virtual reality system, and textiles corresponding to the touch feeling characteristic values ​​are constructed in a virtual reality environment, and the touch feeling and vision are simultaneously reproduced to users, so that users 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 simulation reproduction, in particular to a textile touch reproduction device and method and an online shopping method based on touch reproduction. Background Art

[0002] With the rapid development of society and science and technology, people are no longer satisfied with simply perceiving the environment through vision and hearing. They urgently need another way of perception, tactile perception, to interact with the external environment. Touch reproduction devices based on virtual reality have gradually become the focus of scholars' research. Virtual reality is an emerging technology that uses computer calculation and graphics processing to perform simulation modeling in computers, establish three-dimensional virtual space, and simulate objects and environments in the real world as much as possible. Users can interact with virtual objects in three-dimensional space and get an immersive experience. Touch reproduction devices based on virtual reality can be applied to business, education and other fields. In the business field, through touch reproduction devices based on virtual reality, consumers can remotely perceive the tactile characteristics of products and enhance the attractiveness of products to consumers, which is beneficial to the sale of merchants' products and optimizes consumers' shopping experience; in the field of education, students can see the objects being taught in a virtual environment, and can intuitively feel the tactile characteristics of the objects being learned through touch, conduct immersive human-computer interaction, and improve the efficiency of learning and teaching. Therefore, it is of great significance to carry out research on touch reproduction devices based on virtual reality.

[0003] As for the vibration method, variable friction method, and multi-integration method currently used for reproducing the tactile sensation of objects at home and abroad, the vibration method reproduces the tactile sensation of objects by changing the amplitude and frequency of the vibration element, which correspond to the reproducing elements of the tactile sensation, namely the texture height and the element spacing, respectively. However, the reproduced tactile sensation is relatively simple, and is mostly a reproduction of roughness; the variable friction method reproduces the tactile sensation of objects by changing the friction force at the contact point between the human body and the tactile interface in real time, but only has tactile feedback in the tangential direction and requires a large contact area; the multi-integration method reproduces a variety of tactile sensations such as roughness and softness at the interface of human-computer interaction by integrating multiple tactile sensation reproduction methods, such as the vibration method, variable friction method, and electrical stimulation method, which are similar to the tactile sensation perceived when touching an object. However, most of the existing methods for reproducing the tactile sensation of objects are relatively simple, mostly based on changing force and vibration changes, and there are few methods that integrate multiple reproduction methods and reproduce the tactile sensation from multiple tactile dimensions, and the quality of tactile sensation reproduction is poor. Moreover, the prior art cannot change the softness and fluffiness of the reproduced touch according to the degree of pressure, that is, it cannot perceive the dynamic changes of the soft touch and the fluffiness of the touch, nor can it correct the reproduced touch by comparing the difference between the reproduced touch and the real touch, so it cannot accurately reproduce the real touch. Summary of the invention

[0004] In view of this, the present invention aims at the technical problem that the above-mentioned prior art cannot accurately reproduce the touch, and provides a textile touch reproduction device and method and an online shopping method based on touch reproduction.

[0005] The technical solution of the present invention is a textile touch reproduction device, comprising a soft touch reproduction part, a rough touch reproduction part, a fluffy touch reproduction part and a support component, wherein the soft touch reproduction part, the rough touch reproduction part and the fluffy touch reproduction part are all arranged on the support component;

[0006] The soft touch reproduction part includes a first electromagnetic device, a soft touch reproduction substrate and a tensioning mechanism. The soft touch reproduction substrate includes a chloroprene rubber layer a and a magnetorheological fluid a. A chloroprene rubber film is applied on the soft touch reproduction substrate. Two ends of the chloroprene rubber film are fixed to two parts of the tensioning mechanism. The first electromagnetic device is located below the soft touch reproduction substrate or the tensioning mechanism. The distance between the two parts of the tensioning mechanism is adjustable. The influence of the magnetic field generated by the first electromagnetic device on the yield strength of the magnetorheological fluid a provided in the soft touch reproduction substrate is adjusted by adjusting the current flowing through the first 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 first electromagnetic device are set to reproduce the soft touch.

[0007] The rough touch reproduction part includes an electrostrictive film, an optical fiber sensor, an optical fiber transmitter and a point light source. The electrostrictive film is built with a plurality of optical fiber sensors and a plurality of point light sources. The point light source is connected to one end of each optical fiber sensor to transmit light pulses to the optical fiber sensor. The initial current intensity of the electrostrictive film is set according to the rough touch characteristic value. The optical fiber transmitter is used to collect the central wavelength data of the optical fiber sensor to characterize the surface state change of the electrostrictive film. The rough touch corresponding to the rough touch characteristic value is reproduced on the upper surface of the electrostrictive film through different wrinkle degrees caused by the contraction or extension of the electrostrictive film.

[0008] The fluffy touch reproduction part includes the second electromagnetic device and a fluffy touch reproduction substrate, the second electromagnetic device is located below the fluffy touch reproduction substrate, the fluffy touch reproduction substrate is vertically arranged below the soft feel reproduction substrate, a magnetorheological fluid b is arranged in the fluffy touch reproduction substrate, and a plurality of the fluffy touch reproduction substrates are placed in an elastic polymer grid. The influence of the magnetic field generated by the second electromagnetic device on the yield strength of the magnetorheological fluid b arranged in the fluffy touch reproduction substrate is adjusted by adjusting the current flowing through the second electromagnetic device; according to the fluffy touch characteristic value, the current flowing through the second electromagnetic device and the initial height of the elastic polymer grid are set to reproduce the fluffy touch.

[0009] Optionally, the chloroprene rubber film has a built-in conductive fiber b, and the reproduced soft touch is monitored by detecting the resistance value of the conductive fiber b; the electrostrictive film is arranged on the chloroprene rubber film, and the electrostrictive film has a built-in conductive fiber a, and the stinging touch is reproduced by supplying electricity to the conductive fiber a.

[0010] Optionally, it also includes a cold and warm touch reproduction part, which includes a flexible heating sheet, a flexible cooling sheet and a temperature sensor. The flexible heating sheet and the flexible cooling sheet are both arranged on the lower surface of the chloroprene rubber film. The lower surface of the chloroprene rubber film is provided with a temperature sensor. The initial working state of the flexible heating sheet and the flexible cooling sheet is set according to the cold and warm touch characteristic value. The temperature sensor monitors the temperature value to adjust the working state of the flexible heating sheet and the flexible cooling sheet to achieve cold and warm touch reproduction.

[0011] Optionally, the fluffy touch reproduction part also includes a pressure sensor, the fluffy feeling reproduction matrix includes a tubular chloroprene rubber layer b and a magnetorheological fluid b, the upper surface of the tubular chloroprene rubber layer b is tightly connected to the lower surface of the soft feeling reproduction matrix, there are several pressure sensors, which are placed under each tubular chloroprene rubber layer b in the fluffy feeling reproduction matrix, and are used to monitor the pressure value of the fluffy feeling reproduction matrix, and adjust the current flowing through the second electromagnetic device according to the pressure value to achieve fluffy touch reproduction.

[0012] Optionally, the tensioning mechanism includes an L-shaped connecting plate a, an L-shaped connecting plate b, a bidirectional screw mechanism, a guide rod support, a guide rod, two guide rod workbenches and two screw workbenches, the bidirectional screw mechanism includes a motor, a coupling, a screw support and a bidirectional screw, the two parts of the tensioning mechanism are an L-shaped connecting plate a and an L-shaped connecting plate b, the L-shaped connecting plate a and the L-shaped connecting plate b are respectively arranged on the two guide rod workbenches and the screw workbench, and a chloroprene rubber film is clamped on the horizontal plane.

[0013] Optionally, the support assembly includes a base plate, a support frame, a flat plate, a limit frame and a back plate, the support frame is installed on the upper surface of the base plate to support and fix the flat plate and the back plate, the limit frame is fixed on the upper surface of the flat plate, and the elastic polymer grid is placed in the limit frame.

[0014] Optionally, the first electromagnetic device and the second electromagnetic device each include a plurality of coils and a magnetic core.

[0015] The second solution of the present invention is to provide a method for reproducing the touch of a textile. Based on the above-mentioned textile touch reproduction device, the touch reproduction can achieve the reproduction of soft touch, rough touch, fluffy touch, cold and warm touch and tingling touch, which specifically includes the following steps:

[0016] Step 1: according to the known tactile property values ​​of the textile, the distance between the two parts of the tensioning mechanism for respectively positioning the two ends of the neoprene film and the current intensity flowing through the first electromagnetic device required for reproducing the soft touch, the current intensity required for supplying to the electrostrictive film when reproducing the rough touch, the current intensity passing through the second electromagnetic device when reproducing the fluffy touch, the current intensity required for supplying to the flexible heating sheet and the flexible cooling sheet when reproducing the cold and warm touch, and the current intensity required for supplying to the conductive fiber a when reproducing the tingling touch are set;

[0017] Step 2: Turn on the power supply and supply power to the outside, adjust the two parts of the tensioning mechanism to the set position, and supply power to the first electromagnetic device, the second electromagnetic device, the electrostrictive film, the point light source, the flexible heating sheet, the flexible cooling sheet and the conductive fiber a through the monitor, so as to generate a magnetic field change, a surface state change and a temperature change of corresponding intensity;

[0018] Step 3: contact and press down the neoprene film. When the soft feeling reproduction substrate is pressed down, the force required for pressing gradually increases, and when the magnetorheological fluid a is displaced downward, the magnetic field strength gradually increases. The soft feeling reproduction substrate can feel the dynamically changing soft touch.

[0019] The electrostrictive film, driven by the corresponding current intensity, presents a rough surface touch by contraction or extension; the fluffy touch is comprehensively reproduced by the fluffy feeling reproduction matrix and the elastic polymer grid, and the magnetic field intensity generated by the coil is changed by controlling the current intensity flowing through the second electromagnetic device to adjust the yield strength of the magnetorheological fluid b in the tubular chloroprene rubber layer b, and the elasticity of the elastic polymer grid with adjustable height around it is combined to synergistically reproduce different degrees of fluffy touch; the reproduction of the cold and warm touch is achieved by the monitor controlling the current flowing through the flexible heating sheet and the flexible cooling sheet; the reproduction of the tingling touch is achieved by the monitor controlling the current flowing through the conductive fiber a;

[0020] Step 4: Use a monitor to monitor the average value of the change rate of the resistance value of the conductive fiber b, and compare whether the soft touch characteristic value corresponding to the value is consistent with the reproduced soft touch characteristic value. If not, change the magnetic field strength generated by the first electromagnetic device and the distance between the two parts of the tensioning mechanism until the error between the reproduced touch and the real touch is eliminated; monitor the central wavelength of the optical fiber sensor collected by the optical fiber transmitter in the electrostrictive film, and compare whether the rough touch characteristic value corresponding to the value is consistent with the real rough touch characteristic value. If not, change the current intensity, and then change the surface state of the electrostrictive film until the reproduced rough touch is consistent with the real The error between the rough touch is eliminated; the change rate of the pressure value collected by the pressure sensor is monitored, and the fluffy touch characteristic value corresponding to the value is compared with the real fluffy touch characteristic value. If they are not consistent, the current intensity flowing through the second electromagnetic device is changed, and then the magnetic field intensity generated by the coil is changed until the error between the reproduced fluffy touch and the real fluffy touch is eliminated; the temperature value collected by the temperature sensor is monitored, and the cold and warm touch characteristic value corresponding to the value is compared with the real cold and warm touch characteristic value. If they are not consistent, the working state of the flexible heating sheet and the flexible cooling sheet is changed until the error between the reproduced cold and warm touch and the real cold and warm touch is eliminated;

[0021] The comprehensive reproduction of touch is achieved through real-time feedback and correction of the above four touch control parameters, among which soft touch and fluffy touch are dynamic reproductions of dynamically changing touch; soft touch, rough touch, fluffy touch and cold and warm touch are accurate reproductions with feedback and correction.

[0022] Optionally, the characteristic values ​​of the soft touch, rough touch, fluffy touch, cold and warm touch and tingling touch are obtained by testing a touch quantification device, and the relationship between the characteristic value of the soft touch and the current intensity passing through the first electromagnetic device and the distance between the two parts of the tensioning mechanism is established by calculation or simulation, the relationship between the characteristic value of the rough touch and the current intensity passing through the electrostrictive film is established, the relationship between the characteristic value of the fluffy touch and the current intensity flowing through the second electromagnetic device and the height of the elastic polymer grid is established, the relationship between the characteristic value of the cold and warm touch and the current intensity passing through the flexible heating sheet and the flexible cooling sheet is established, and the relationship between the characteristic value of the tingling touch and the current intensity passing through the conductive fiber a is established.

[0023] The third solution of the present invention is to provide a method for online shopping of textiles based on tactile reproduction, in which soft touch, rough touch, fluffy touch, cold and warm touch, and tingling touch characteristic values ​​are marked on the online shopping interface, and the user reproduces the tactile characteristic values ​​based on the above-mentioned tactile reproduction device to assist in the selection and decision-making of textile items; the tactile characteristic values ​​are simultaneously transmitted to the virtual reality system, and textiles corresponding to the tactile characteristic values ​​are constructed in the virtual reality environment. Through the tactile 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.

[0024] Compared with the prior art, the present invention has the following advantages: by adopting the present invention, people can actively perceive the real soft touch, rough touch, fluffy touch and other touch sensations, instead of judging the touch sensation of textiles through vision and object characteristics. The present invention can also realize remote perception of touch and can be applied to auxiliary decision-making for online shopping. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view of the textile touch reproduction device of the present invention.

[0026] Figure 2 It is a cross-sectional view of the soft feeling reproducing substrate and the fluffy feeling reproducing substrate in the present invention.

[0027] In the figure: back plate 1, motor bracket 2, motor 3, coupling 4, screw support 5, guide rod support 6, guide rod workbench 7, L-shaped connecting plate a8, screw workbench 9, first electromagnetic device 10, guide rod 11, bidirectional screw rod 12, point light source 13, chloroprene rubber film 14, soft feeling reproduction matrix 15, fluffy feeling reproduction matrix 16, temperature sensor 17, optical fiber transmitter 18, elastic polymer grid 19, limit frame 20, electrostrictive film 21, optical fiber sensor 22, conductive fiber a23, conductive fiber b24, flexible cooling sheet 25, flexible heating sheet 26, L-shaped connecting plate b27, cushion block 28, flat plate 29, support frame 30, bottom plate 31, power supply 32, pressure sensor 33, second electromagnetic device 34, monitor 35, chloroprene rubber layer a36, magnetorheological fluid a37, tubular chloroprene rubber layer b38 and magnetorheological fluid b39. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] 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.

[0030] like Figure 1 As shown, a touch reproduction device of the present invention includes a soft touch reproduction part, a rough touch reproduction part, a fluffy touch reproduction part and a supporting assembly, and specific components include a motor bracket 2, a motor 3, a coupling 4, a screw support 5, a guide rod support 6, a guide rod workbench 7, an L-shaped connecting plate a8, a screw workbench 9, a first electromagnetic device 10, a guide rod 11, a bidirectional screw rod 12, a point light source 13, a chloroprene rubber film 14, a soft feeling reproduction matrix 15, a fluffy feeling reproduction matrix 16, a temperature sensor 17, an optical fiber transmitter 18, an elastic polymer grid 19, an electrostrictive film 21, an optical fiber sensor 22, a conductive fiber a23, a conductive fiber b24, a flexible cooling sheet 25, a flexible heating sheet 26, an L-shaped connecting plate b27, a cushion block 28, a power supply 32, a pressure sensor 33, a second electromagnetic device 34 and a monitor 35, etc. The first electromagnetic device 10 includes a plurality of coils and corresponding magnetic cores, and the second electromagnetic device 34 also includes a plurality of coils and corresponding magnetic cores.

[0031] The motor 3 is fixed on the flat plate 29 by the motor bracket 2, and its output end drives the bidirectional screw 12 through the coupling 4. Both ends of the bidirectional screw 12 are supported by the screw support 5 fixed on the flat plate 29. The screw workbench 9 is respectively sleeved on the positive and negative threads of the bidirectional screw 12. The guide rod 11 is arranged in parallel above the bidirectional screw 12, and both ends pass through the guide rod 11 support 6 and are fixed on the back plate 1. The guide rod workbench 7 is sleeved on the guide rod 11 and can slide along the guide rod 11. The vertical surfaces of the L-shaped connecting plate a8 and the L-shaped connecting plate b27 are respectively straddled on the guide rod workbench 7 and the screw workbench 9 on one side. A chloroprene rubber film 14 and a soft feeling reproduction matrix 15 are clamped on the horizontal surface. The soft feeling reproduction matrix 15 includes a chloroprene rubber film. The rubber layer a36, the soft feeling reproduction matrix 15 includes a chloroprene rubber layer a36 and a magnetorheological fluid a37, the edge of the chloroprene rubber layer a36 is closely connected to the lower surface of the chloroprene rubber film 14, the magnetorheological fluid a37 is poured into the cavity between the chloroprene rubber layer a36 and the chloroprene rubber film 14, the first electromagnetic device 10 includes two left and right coils and magnetic cores respectively arranged under the L-shaped connecting plate a8 and the L-shaped connecting plate b27, and fixed on the pads 28 on the left and right sides respectively. The magnetic field generated after power is turned on mainly affects the soft feeling reproduction matrix 15 and reproduces the soft touch together with the chloroprene rubber film 14. The pad 28 is fixed on the flat plate 29, and the conductive fiber b24 is placed in the chloroprene rubber film 14 for real-time monitoring. The electrostrictive film 21 is covered on the chloroprene rubber film 14 to reproduce the rough touch, wherein an optical fiber transmitter 18, an optical fiber sensor 22 and a conductive fiber a23 are built in, the optical fiber sensor 22 comprises a plurality of optical fibers, the point light source 13 is connected to one end of each optical fiber sensor 22 to transmit the light pulse to the optical fiber sensor 22, the optical fiber transmitter 18 and the optical fiber sensor 22 are used to monitor the reproduced rough touch in real time, the conductive fiber a23 is used to reproduce the stinging touch, the right side of the L-shaped connecting plate a8 and the left side of the L-shaped connecting plate b27 are respectively provided with a flexible heating sheet 26 and a flexible cooling sheet 25, the flexible heating sheet 26 and the flexible cooling sheet 25 are fixed to the lower surface of the chloroprene rubber film 14 The surface is used to reproduce the cold and warm touch. The temperature sensor 17 is placed on the lower surface of the chloroprene rubber film 14 to monitor the reproduced cold and warm touch in real time. The second electromagnetic device 34 includes a plurality of coils and magnetic cores fixed on the bottom plate 31 and located below the flat plate 29. The magnetic field generated after power is turned on mainly affects the fluffy feeling reproduction matrix 16. The fluffy feeling reproduction matrix 16 includes a plurality of chloroprene rubber layers b38 and magnetorheological fluid b39. The chloroprene rubber layer b38 is tubular, and the upper surface is closely connected to the lower surface of the chloroprene rubber layer a36. The magnetorheological fluid b39 is infused and enclosed by the chloroprene rubber layer a36 in the cavity in the middle of the chloroprene rubber layer b38 and is compounded with the elastic polymer grid 19 to reproduce the fluffy touch. The pressure sensor 33 has a plurality of,The monitor 35 is placed under each tubular chloroprene rubber layer b38 in the fluffy feeling reproduction matrix 16, and is used to monitor the reproduced fluffy touch in real time. The monitor 35 is used to monitor the resistance value of the conductive fiber b24 and the data collected by the temperature sensor 17, the optical fiber transmitter 18, and the pressure sensor 33 in real time, and control the power supply 32 fixed on the bottom plate 31 to provide the current to the motor 3, the first electromagnetic device 10, the point light source 13, the electrostrictive film 21, the conductive fiber a23, the conductive fiber b24, the flexible cooling sheet 25, the flexible heating sheet 26, and the second electromagnetic device 34;

[0032] The main components of the reproducing touch sense include soft touch sense, rough touch sense, fluffy touch sense, hot and cold touch sense and tingling touch sense. When reproducing the touch sense, the distance between the L-shaped connecting plate a8 and the L-shaped connecting plate b27 and the current flowing through the first electromagnetic device 10 are preset according to the soft touch characteristic value. The power supply 32 supplies power to the motor 3 and the first electromagnetic device 10 through the monitor 35 to reach the preset current. The motor 3 drives the bidirectional screw 12 to rotate forward, so that the two screw workbenches 9 move away from each other, so that the distance between the L-shaped connecting plate a8 and the L-shaped connecting plate b27 reaches a preset distance, the chloroprene rubber film 14 is stretched, and the force required for the finger to move it downward by the same distance becomes larger, and the softness decreases. On the contrary, the force required becomes smaller, and the softness increases. When the chloroprene rubber film 14 is subjected to the force from When the finger pressure approaches the first electromagnetic device 10, the magnetic field strength to which the magnetorheological fluid a37 in the soft feeling reproduction matrix 15 is subjected is enhanced, so that the yield strength of the magnetorheological fluid a37 is increased and the softness is reduced. In the process of the chloroprene rubber film 14 being pressed down, the conductive fiber b24 embedded therein is also stretched, and its resistance value changes. According to the average value of the resistance value change rate of the conductive fiber b24 monitored by the monitor 35, the soft touch characteristic value corresponding to the value is compared with the real soft touch characteristic value to see whether they are consistent. If they are inconsistent, the magnetic field strength generated by the first electromagnetic device 10 and the distance between the L-shaped connecting plate a8 and the L-shaped connecting plate b27 are changed until the error between the reproduced touch and the real touch is eliminated, thereby realizing the real-time feedback modification of the control parameters. The rough touch feeling is dynamically reproduced, and the current intensity through the electrostrictive material required to reproduce the rough touch feeling characteristic value is obtained according to the rough touch feeling characteristic value, and the power supply 32 supplies power to the electrostrictive material through the monitor 35, so that the expected wrinkles are generated, and the optical fiber sensor 22 is contracted or stretched, and the optical fiber transmitter 18 collects the central wavelength value of the optical fiber sensor 22 and transmits it to the monitor 35, so as to obtain the rough touch feeling characteristic value corresponding to the reproduced rough touch, and compare it with the characteristic value corresponding to the real rough touch, and correct the error between the two by adjusting the current intensity, and then continue to monitor and correct until the error between the rough touch feeling characteristic value corresponding to the reproduced rough touch feeling and the rough touch feeling characteristic value corresponding to the real rough touch feeling is eliminated. , according to the fluffy touch characteristic value, the current intensity through the coil and the initial height of the elastic polymer grid 19 required to reproduce the fluffy touch characteristic value are obtained, and the second electromagnetic device 34 is powered by the power supply 32 through the monitor 35 to obtain the expected current intensity, generate a magnetic field of corresponding intensity, press the chloroprene rubber film 14 downward, and the force required for pressing the fluffy feeling reproduction matrix 16 gradually increases during the process of being pressed downward. The magnetorheological fluid b39 gradually approaches the coil of the second electromagnetic device 34 during the downward displacement process, and the magnetic field intensity gradually increases. At the same time, the pressure sensor 33 collects the pressure value and transmits it to the monitor 35, so as to obtain the fluffy touch characteristic value corresponding to the change rate of the real-time pressure value presented by the fluffy touch reproduction.The fluffy touch characteristic value is compared with the characteristic value corresponding to the real fluffy touch, and the error between the two is corrected by adjusting the current intensity. Then, monitoring and correction are continued until the error between the fluffy touch characteristic value corresponding to the reproduced fluffy touch and the fluffy touch characteristic value corresponding to the real fluffy touch is eliminated, so as to realize the real-time feedback correction of the control parameters and the dynamic reproduction of the fluffy touch. According to the characteristic value of the cold and warm touch, the flexible heating sheet 26 or the flexible cooling sheet 25 located on the lower surface of the chloroprene rubber film 14 is controlled to heat up or cool down the chloroprene rubber film 14, so as to reproduce different cold and warm touches, and the temperature is controlled. The sensor 17 collects the temperature value and transmits it to the monitor 35, so as to obtain the cold and warm touch characteristic value corresponding to the temperature of the reproduced cold and warm touch feeling, and compare it with the characteristic value corresponding to the real cold and warm touch feeling, and correct the error between the two by adjusting the current intensity, and then continue to monitor and correct until the error between the cold and warm touch characteristic value corresponding to the reproduced cold and warm touch feeling and the cold and warm touch characteristic value corresponding to the real cold and warm touch feeling is eliminated, so as to achieve accurate reproduction of the cold and warm touch feeling, and adjust the current passing through the conductive fiber a23 according to the tingling touch characteristic value to reproduce different tingling touch feelings;

[0033] The characteristic values ​​of the soft touch, rough touch, fluffy touch, cold and warm touch and tingling touch are obtained by testing the touch quantification device. The relationship between the characteristic value of the soft touch and the current intensity passing through the first electromagnetic device 10 and the distance between the two parts of the tensioning mechanism is established by calculation or simulation, the relationship between the characteristic value of the rough touch and the current intensity passing through the electrostrictive film 21 is established, the relationship between the characteristic value of the fluffy touch and the current intensity flowing through the second electromagnetic device 34 and the height of the elastic polymer grid 19 is established, the relationship between the characteristic value of the cold and warm touch and the current intensity passing through the flexible heating sheet 26 and the flexible cooling sheet 25 is established, and the relationship between the characteristic value of the tingling touch and the current intensity passing through the conductive fiber a23 is established.

[0034] The specific reproduction steps of the device are: first, the distance between the L-shaped connecting plate a8 and the L-shaped connecting plate b27 required to reproduce the soft touch of the object, the current intensity passing through the first electromagnetic device, the current intensity required to be provided to the electrostrictive film 21 when reproducing the rough touch of the object, the current intensity passing through the second electromagnetic device when reproducing the fluffy touch of the object, the current intensity required to be provided to the flexible heating plate 26 and the flexible cooling plate 25 when reproducing the cold and warm touch of the object, and the current intensity required to be provided to the conductive fiber a23 when reproducing the tingling touch of the object are calculated based on the tactile characteristic value of the known object. The power supply 32 supplies power to the motor 3 through the monitor 35 to drive the bidirectional screw 12 to rotate, and the screw workbenches 9 on both sides are away from each other, and the L-shaped The connecting plate a8 and the L-shaped connecting plate b27 reach the position calculated in step 1. At the same time, the power supply 32 provides the current calculated in step 1 to each component through the monitor 35, generating a magnetic field change, a surface state change and a temperature change of a specified intensity, and energizing the point light source 13. The user touches and presses the chloroprene rubber film 14 downward. Since the initial stretching degree of the chloroprene rubber film 14 in the soft touch part and the magnetic field strength to which the magnetorheological fluid a37 is subjected are different when reproducing different touch sensations, the user can feel different soft touch sensations. In the process of the soft feeling reproduction substrate being pressed downward, the force required for pressing gradually increases, and in the process of the magnetorheological fluid a37 being displaced downward, the magnetic field strength to which it is subjected gradually increases, and through the soft feeling reproduction The substrate can feel the dynamically changing soft touch. The current of the electrostrictive film 21 of the rough touch reproduction part is provided by the power supply 32 through the monitor 35, and changes according to the different rough touches to be reproduced. Since the surface friction characteristics of the electrostrictive film 21 are different when different currents pass through it, the reproduced rough touch can be felt when touching the surface of the electrostrictive film 21. The fluffy touch of the object is comprehensively reproduced by the fluffy feeling reproduction substrate 16 and the elastic polymer grid 19. By controlling the current intensity flowing through the coil of the second electromagnetic device 34, the magnetic field intensity generated by the coil is changed to adjust the yield strength of the magnetorheological fluid in the tubular chloroprene rubber layer b38, and the elasticity of the elastic polymer grid 19 with adjustable height around it is combined to synergistically reproduce different degrees. The fluffy touch of the object is achieved by controlling the current to the flexible heating sheet 26 and the flexible cooling sheet 25 to reproduce the cold and warm touch of the object by the monitor 35. The current to the conductive fiber a23 is controlled by the monitor 35 to reproduce the tingling touch of the object. The monitor 35 monitors the average value of the change rate of the resistance value of the conductive fiber b24, and compares the soft touch characteristic value corresponding to the value with the soft touch characteristic value required to be reproduced by the device. If they are not consistent, the magnetic field strength generated by the first electromagnetic device and the distance between the L-shaped connecting plate a8 and the L-shaped connecting plate b27 are changed until the error between the reproduced touch and the real touch required to be reproduced is eliminated. At the same time, the central wavelength of the optical fiber sensor 22 collected by the optical fiber transmitter 18 in the electrostrictive film 21 is monitored.The rough touch characteristic value corresponding to the value is compared with the real rough touch characteristic value to be reproduced. If not, the current intensity is changed, thereby changing the surface friction characteristics of the electrostrictive film 21 until the error between the reproduced rough touch and the real rough touch is eliminated. At the same time, the pressure value change rate collected by the pressure sensor 33 is monitored, and the fluffy touch characteristic value corresponding to the value is compared with the real fluffy touch characteristic value. If not, the current intensity is changed, thereby changing the magnetic field intensity generated by the coil until the error between the reproduced fluffy touch and the real fluffy touch is eliminated. At the same time, the temperature value collected by the temperature sensor 17 is monitored under room temperature conditions, and the cold and warm touch characteristic value corresponding to the value is compared with the real cold and warm touch characteristic value. If not, the temperature change generated by the flexible heating sheet 26 and the flexible cooling sheet 25 is changed until the error between the reproduced cold and warm touch and the real cold and warm touch is eliminated. The comprehensive reproduction of the object's touch is achieved through real-time feedback and correction of the above touch control parameters.

[0035] The present invention is further described below with reference to a specific embodiment.

[0036] Five typical samples with known tactile characteristic values ​​were selected, and the distance D between the L-shaped connecting plate a and the L-shaped connecting plate b and the current intensity I1 passing through the first electromagnetic device required to reproduce their soft touch were calculated from their soft tactile characteristic values. The current intensity I2 passing through the electrostrictive film required to reproduce their rough touch was calculated from their rough tactile characteristic values. The initial height H of the elastic polymer grid and the current intensity I3 passing through the second electromagnetic device required to reproduce their fluffy touch were calculated from their fluffy tactile characteristic values. The current intensity I4 passing through the flexible heating sheet or the current intensity I5 passing through the flexible cooling sheet required to reproduce their cold and warm touch was calculated from their cold and warm tactile characteristic values. The current intensity I6 passing through the conductive fiber a required to reproduce their tingling touch was calculated from their tingling tactile characteristic values. The tactile characteristic values ​​and control parameters of the samples are shown in Table 1.

[0037] Table 1: Sample tactile characteristic values ​​and control parameters

[0038]

[0039] Turn on the power supply and supply power to the motor through the monitor, driving the bidirectional screw to rotate, the screw workbenches on both sides move away from each other, and the L-shaped connecting plate a and the L-shaped connecting plate b reach the calculated position. At the same time, the power supply provides the calculated current to each component through the monitor, energizes the point light source, and causes each touch reproduction component to produce a magnetic field change, surface state change and temperature change of a specified intensity. Then the user touches and presses down the neoprene film, and each sensor collects data to compare whether the reproduced tactile characteristic value is consistent with the real tactile characteristic value. If not, the control parameter is corrected and monitoring is continued until the error between the reproduced tactile feeling felt by the user and the real tactile feeling is eliminated. After the feeling is completed, turn off the power supply, and a simulation and reproduction is completed.

[0040] 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 textile tactile reproduction device, characterized in that: It comprises a soft touch reproduction part, a rough touch reproduction part, a fluffy touch reproduction part and a supporting component, wherein the soft touch reproduction part, the rough touch reproduction part and the fluffy touch reproduction part are all arranged on the supporting component; The soft touch reproduction part comprises a first electromagnetic device (10), a soft touch reproduction substrate (15) and a tensioning mechanism. The soft touch reproduction substrate (15) comprises a chloroprene rubber layer a (36) and a magnetorheological fluid a (37). A chloroprene rubber film (14) is applied on the soft touch reproduction substrate (15). The magnetorheological fluid a (37) is provided in the chloroprene rubber layer a (36). Two ends of the chloroprene rubber film (14) are fixed to two parts of the tensioning mechanism. The first electromagnetic device (10) is located at Below the soft feeling reproduction substrate (15) or the tensioning mechanism, the distance between the two parts of the tensioning mechanism is adjustable; by adjusting the current flowing through the first electromagnetic device (10), the influence of the magnetic field generated by the first electromagnetic device (10) on the yield strength of the magnetorheological fluid a (37) provided in the soft feeling reproduction substrate (15) is adjusted; according to the soft touch characteristic value, the distance between the two parts of the tensioning mechanism and the current flowing through the first electromagnetic device (10) are set to reproduce the soft touch; The chloroprene rubber film (14) has a conductive fiber b (24) built in it, and the reproduced soft touch is monitored by detecting the resistance value of the conductive fiber b (24); The rough tactile sensation reproducing part comprises an electrostrictive film (21), an optical fiber sensor (22), an optical fiber transmitter (18) and a point light source (13); the electrostrictive film (21) is equipped with a plurality of optical fiber sensors (22) and a plurality of point light sources (13); the point light source (13) is connected to one end of each optical fiber sensor (22) to transmit a light pulse to the optical fiber sensor (22); the initial current intensity of the electrostrictive film (21) is set according to the rough tactile sensation characteristic value; the optical fiber transmitter (18) is used to collect the central wavelength data of the optical fiber sensor (22) to characterize the surface state change of the electrostrictive film (21); and the rough tactile sensation corresponding to the rough tactile sensation characteristic value is reproduced on the upper surface of the electrostrictive film (21) through different wrinkle degrees caused by the contraction or extension of the electrostrictive film; The fluffy touch reproduction part comprises a second electromagnetic device (34) and a fluffy feeling reproduction matrix (16), wherein the second electromagnetic device (34) is located below the fluffy feeling reproduction matrix (16), and the fluffy feeling reproduction matrix (16) is vertically arranged below the soft feeling reproduction matrix (15), and a magnetorheological fluid b (39) is arranged in the fluffy feeling reproduction matrix (16), and a plurality of the fluffy feeling reproduction matrices (16) are arranged in an elastic polymer grid (19), and the influence of the magnetic field generated by the second electromagnetic device (34) on the yield strength of the magnetorheological fluid b (39) arranged in the fluffy feeling reproduction matrix (16) is adjusted by adjusting the current flowing through the second electromagnetic device (34); and the current flowing through the second electromagnetic device (34) and the initial height of the elastic polymer grid (19) are set according to the fluffy touch characteristic value, so as to reproduce the fluffy touch; The fluffy touch reproduction part also includes a pressure sensor (33); the fluffy touch reproduction substrate (16) includes a tubular chloroprene rubber layer b (38) and a magnetorheological fluid b (39); the upper surface of the tubular chloroprene rubber layer b (38) is closely connected to the lower surface of the soft feeling reproduction substrate (15); there are a plurality of pressure sensors (33) disposed below each tubular chloroprene rubber layer b (38) in the fluffy feeling reproduction substrate (16) and used to monitor the pressure value of the fluffy feeling reproduction substrate (16) and adjust the current flowing through the second electromagnetic device (34) according to the pressure value to achieve fluffy touch reproduction; The tensioning mechanism comprises an L-shaped connecting plate a (8), an L-shaped connecting plate b (27), a bidirectional screw mechanism, a guide rod support (6), a guide rod (11), two guide rod workbenches (7) and two screw workbenches (9); the bidirectional screw mechanism comprises a motor (3), a motor bracket (2), a coupling (4), a screw support (5) and a bidirectional screw (12); the two parts of the tensioning mechanism are the L-shaped connecting plate a (8) and the L-shaped connecting plate b (27); the L-shaped connecting plate a (8) and the L-shaped connecting plate b (27) are respectively arranged on the two guide rod workbenches (7) and the screw workbenches (9); and a chloroprene rubber film (14) is clamped on the horizontal surface.

2. The textile touch reproduction device according to claim 1, characterized in that: The electrostrictive film (21) is arranged on the chloroprene rubber film (14), and the electrostrictive film (21) has a conductive fiber a (23) built therein, and a tingling touch sensation is reproduced by supplying electricity to the conductive fiber a (23).

3. The textile touch reproduction device according to claim 2, characterized in that: The invention also comprises a cold and warm touch reproduction part, wherein the cold and warm touch reproduction part comprises a flexible heating sheet (26), a flexible cooling sheet (25) and a temperature sensor (17). The flexible heating sheet (26) and the flexible cooling sheet (25) are both arranged on the lower surface of the chloroprene rubber film (14). The lower surface of the chloroprene rubber film (14) is provided with a temperature sensor (17). The initial working state of the flexible heating sheet (26) and the flexible cooling sheet (25) is set according to the cold and warm touch characteristic value. The temperature sensor (17) monitors the temperature value to adjust the working state of the flexible heating sheet (26) and the flexible cooling sheet (25) to achieve cold and warm touch reproduction.

4. The textile touch reproduction device according to claim 1, characterized in that: The support assembly comprises a base plate (31), a support frame (30), a flat plate (29), a limit frame (20) and a back plate (1); the support frame (30) is mounted on the upper surface of the base plate (31) and is used to support and fix the flat plate (29) and the back plate (1); the limit frame (20) is fixed on the upper surface of the flat plate (29); and the elastic polymer grid (19) is placed in the limit frame (20).

5. The textile touch reproduction device according to claim 1, characterized in that: The first electromagnetic device (10) and the second electromagnetic device (34) each include a plurality of coils and a magnetic core.

6. A method for reproducing the touch of a textile, based on the device for reproducing the touch of a textile according to any one of claims 1 to 5, characterized in that: Touch reproduction can achieve the reproduction of soft touch, rough touch, fluffy touch, cold and warm touch, and tingling touch, and specifically includes the following steps: Step 1: according to the known tactile property values ​​of the textile, the distance between the two parts of the tensioning mechanism for respectively positioning the two ends of the neoprene film and the current intensity flowing through the first electromagnetic device required for reproducing the soft touch, the current intensity required for supplying to the electrostrictive film when reproducing the rough touch, the current intensity passing through the second electromagnetic device when reproducing the fluffy touch, the current intensity required for supplying to the flexible heating sheet and the flexible cooling sheet when reproducing the cold and warm touch, and the current intensity required for supplying to the conductive fiber a when reproducing the tingling touch are set; Step 2: Turn on the power supply and supply power to the outside, adjust the two parts of the tensioning mechanism to the set position, and supply power to the first electromagnetic device, the second electromagnetic device, the electrostrictive film, the point light source, the flexible heating sheet, the flexible cooling sheet and the conductive fiber a through the monitor, so as to generate a magnetic field change, a surface state change and a temperature change of corresponding intensity; Step 3: contact and press down the neoprene film. When the soft feeling reproduction substrate is pressed down, the force required for pressing gradually increases, and when the magnetorheological fluid a is displaced downward, the magnetic field strength gradually increases. The soft feeling reproduction substrate can feel the dynamically changing soft touch. The electrostrictive film, driven by the corresponding current intensity, presents a rough surface touch by contraction or extension; the fluffy touch is comprehensively reproduced by the fluffy feeling reproduction matrix and the elastic polymer grid, and the magnetic field intensity generated by the coil is changed by controlling the current intensity flowing through the second electromagnetic device to adjust the yield strength of the magnetorheological fluid b in the tubular chloroprene rubber layer b, and the elasticity of the elastic polymer grid with adjustable height around it is combined to synergistically reproduce different degrees of fluffy touch; the reproduction of the cold and warm touch is achieved by the monitor controlling the current flowing through the flexible heating sheet and the flexible cooling sheet; the reproduction of the tingling touch is achieved by the monitor controlling the current flowing through the conductive fiber a; Step 4: Use a monitor to monitor the average value of the change rate of the resistance value of the conductive fiber b, and compare whether the soft touch characteristic value corresponding to the value is consistent with the soft touch characteristic value to be reproduced. If not, change the magnetic field strength generated by the first electromagnetic device and the distance between the two parts of the tensioning mechanism until the error between the reproduced touch and the real touch to be reproduced is eliminated; monitor the central wavelength of the optical fiber sensor collected by the optical fiber transmitter in the electrostrictive film, and compare whether the rough touch characteristic value corresponding to the value is consistent with the real rough touch characteristic value. If not, change the current intensity, and then change the surface state of the electrostrictive film until the reproduced rough touch is eliminated. The error between the reproduced fluffy touch feeling and the real rough touch feeling is eliminated; the change rate of the pressure value collected by the pressure sensor is monitored, and the fluffy touch characteristic value corresponding to the value is compared with the real fluffy touch characteristic value. If they are not consistent, the current intensity flowing through the second electromagnetic device is changed, and then the magnetic field intensity generated by the coil is changed until the error between the reproduced fluffy touch feeling and the real fluffy touch feeling is eliminated; the temperature value collected by the temperature sensor is monitored, and the cold and warm touch characteristic value corresponding to the value is compared with the real cold and warm touch characteristic value. If they are not consistent, the working state of the flexible heating sheet and the flexible cooling sheet is changed until the error between the reproduced cold and warm touch feeling and the real cold and warm touch feeling is eliminated; The comprehensive reproduction of touch is achieved through real-time feedback and correction of the above touch control parameters, among which soft touch and fluffy touch are dynamic reproductions of dynamically changing touch, and soft touch, rough touch, fluffy touch and cold and warm touch are accurate reproductions with feedback and correction.

7. The method for reproducing the touch feeling of textiles according to claim 6, characterized in that: The characteristic values ​​of the soft touch, rough touch, fluffy touch, cold and warm touch and tingling touch are obtained by testing with a touch quantification device. The relationship between the characteristic value of the soft touch and the current intensity passing through the first electromagnetic device (10) and the distance between the two parts of the tensioning mechanism is established by calculation or simulation. The relationship between the characteristic value of the rough touch and the current intensity passing through the electrostrictive film (21) is established. The relationship between the characteristic value of the fluffy touch and the current intensity flowing through the second electromagnetic device (34) and the height of the elastic polymer grid (19) is established. The relationship between the characteristic value of the cold and warm touch and the current intensity passing through the flexible heating sheet (26) and the flexible cooling sheet (25) is established. The relationship between the characteristic value of the tingling touch and the current intensity passing through the conductive fiber a (23) is established.

8. A method for online shopping of textiles based on tactile reproduction, characterized in that: The soft touch, rough touch, fluffy touch, cold and warm touch and tingling touch characteristic values ​​are marked on the online shopping interface, and the user reproduces the touch characteristic values ​​based on the touch reproduction device described in any one of claims 1 to 5 to assist in the selection and decision-making of textile products; the various touch characteristic values ​​are simultaneously transmitted to the virtual reality system, and textiles corresponding to the various touch characteristic values ​​are constructed in the virtual reality environment. The touch and vision are simultaneously reproduced to the user through the touch reproduction device and the virtual reality system, so that the user can experience the on-site tactile and visual perception when shopping for textiles online.

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