Dry and wet touch reproduction device and method based on phase change material and touch quantized value

Abstract

The invention discloses a dry and wet touch reproduction device and method based on a phase change material and a touch quantized value, and the device comprises a dry and wet touch sensing body, a temperature control assembly, a supporting assembly and a driving assembly, and can reproduce the dry and wet touch of an object. The dry and wet touch sensing body is composed of a plurality of dry and wet touch reproduction units and a bidirectional filter membrane, and each dry and wet touch reproduction unit comprises a phase change material storage unit, a 3 * 3 grid and a capsule type phase change material combination unit. A touch characteristic quantification value obtained by a touch quantification system is calculated to obtain control parameters of touch reproduction execution elements such as an infrared ceramic heater array, a refrigeration sheet array, a fan array and a lifting plate, a virtual reality system is combined to realize vision and touch fused dry and wet touch perception, and the reproduced dry and wet touch is monitored in real time. And comparing the dry and wet touch feeling with the dry and wet touch feeling needing to be reproduced, and adjusting the control parameters of the touch feeling reproduction execution element in real time, so that the accurate reproduction of the dry and wet touch feeling is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of dry and wet touch simulation and reproduction, and specifically to a dry and wet touch reproduction device and method based on phase change materials and touch quantization values. Background Art

[0002] Under the background of the rapid development of current communication technologies, remote interaction has still not broken through the limitations of audio-visual perception, and the lack of tactile feedback has become a significant technological gap. Although intelligent terminals have achieved the accurate transmission of visual information, in the multi-modal perception system that humans naturally rely on when interacting with the digital world, the tactile dimension has always been absent. This gap between physiological perception and digital feedback directly restricts the real experience in scenarios such as virtual collaboration and telemedicine. To break through this technological bottleneck, the next-generation interaction interfaces are accelerating the integration of tactile reproduction devices, and through technical means such as mechanical feedback and vibration waveform control, they reconstruct an ergonomic tactile perception dimension in the digital space, ultimately realizing a remote interaction revolution with full-sensory immersion. Therefore, the research on the reproduction of dry and wet touch is particularly meaningful.

[0003] Currently, the international research on the reproduction of dry and wet touch tends to use temperature changes or various intelligent new materials and new structures. Chinese Patent CN117130474A discloses a remote tactile perception device and method and a human-computer interaction method based on remote tactile perception, which reproduce the dry and wet feeling by reversibly releasing and absorbing liquid through repeated coating of a photosensitive liquid crystal polymer network; at the same time, the tactile characteristic values are transmitted to the virtual reality system, so that when the user touches the multi-layer composite flexible perception body, the remote tactile perception of the tactile and visual fusion of the remote object is realized simultaneously. In the literature "Mouillé: Exploring wetness illusion on fingertips to enhance immersive experience in VR" (Teng Han, Si-Rui Wang, Si-jia Wang et al., Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems, 2020: 1-10), temperature changes are used to generate a humidity illusion, thereby simulating the dry and wet touch of an object.

[0004] Although the above methods can reproduce the dry and wet touch, they have disadvantages such as low reproduction accuracy and difficult maintenance, and there is ultraviolet light during reproduction, which is harmful to human skin in the long term. At the same time, they cannot reproduce the dry and wet touch at different temperatures in different regions, nor can they reproduce the dry and wet touch with a gradual change in temperature in different regions. Summary of the Invention

[0005] In view of this, in order to solve the technical problems existing in the above-mentioned prior art, namely, the inability to accurately reproduce the touch sensation and the inability to realize the reproduction of wet and dry touch sensations at dynamic temperatures in different regions, the present invention provides a device and method for reproducing wet and dry touch sensations based on phase change materials and touch quantization values.

[0006] The technical solution of the present invention is a device for reproducing wet and dry touch sensations based on phase change materials and touch quantization values, which includes a wet and dry touch sensor, a temperature control component, a support component, and a drive component; the wet and dry touch sensor, the temperature control component, and the drive component are all arranged on the support component; the wet and dry touch sensor is composed of a plurality of wet and dry touch reproduction units and a bidirectional filter membrane, the bidirectional filter membrane is laid on the upper surface of the wet and dry touch reproduction unit, the wet and dry touch reproduction unit includes a phase change material storage unit, a 3×3 grid, and a capsule-type phase change material combination unit, the 3×3 grid is arranged inside the phase change material storage unit, the capsule-type phase change material combination unit contains at least nine kinds of capsule-type phase change materials with different phase change temperatures, and the capsule-type phase change materials are evenly distributed by volume in each grid of the 3×3 grid; the temperature control component is composed of an infrared ceramic heater array, a Peltier cooler array, and a fan array, the infrared ceramic heater array emits infrared rays to heat the capsule-type phase change material combination unit, and the temperature change of the capsule-type phase change material combination unit is dynamically regulated by controlling the current and duration flowing through the infrared ceramic heater array and the current and duration flowing through the Peltier cooler array and the fan array; the upper side plate is fixed around the upper side of the frame, the lower side plate is fixed around the lower side of the frame, the support plate is fixed in the middle layer of the frame, the bottom plate is fixed at the bottom of the frame, the height limiting plate is fixed on the upper side plate, which is used to limit the maximum displacement of the lifting plate and realize the auxiliary positioning of the wet and dry touch reproduction unit, the limiting column and the L-shaped connecting plate are fixed on the support plate, the limiting column is used to fix the wet and dry touch reproduction unit, the lifting plate can control the height of the capsule-type phase change material combination unit in the wet and dry touch reproduction unit, and the L-shaped connecting plate is used to fix the drive component; the drive component is composed of a stepping motor, a lead screw, a slider, and a connecting piece, the slider is fixed to the lifting plate and the lower pressing plate through the connecting piece, and the stepping motor drives the lead screw to rotate, so as to drive the lifting plate and the lower pressing plate to move in the vertical direction.

[0007] Optionally, the phase change temperatures of the multiple capsule-type phase change materials in the capsule-type phase change material combination unit form an arithmetic progression; at least one type of capsule-type phase change material with a certain phase change temperature is distributed in each grid of the 3×3 grid, and the sum of the phase change temperatures of each row, each column, and the diagonal is equal; the dry and wet touch reproduction unit can reproduce the dry and wet touch at at least nine different temperatures with the ambient temperature as the central temperature of the arithmetic progression of the phase change temperatures; the dry and wet touch reproduction unit can be combined into arrays of different sizes, and the dry and wet touch at the same temperature in different regions is reproduced by combining the dry and wet touch reproduction units with the same central temperature of the arithmetic progression of the phase change temperatures, and the dry and wet touch with a gradually changing temperature in different regions is reproduced by combining the dry and wet touch reproduction units with a gradually changing central temperature of the arithmetic progression of the phase change temperatures.

[0008] Optionally, a humidity sensor is arranged on the surface of the bidirectional filter membrane to monitor the humidity on the surface of the bidirectional filter membrane so as to adjust the rising height of the lifting plate.

[0009] Optionally, the thermoelectric cooler array is distributed in a circle outside the dry and wet touch reproduction unit, the infrared ceramic heater array is located on the bottom plate directly below the dry and wet touch reproduction unit, the fan array is fixed on the lower side plate, and a temperature sensor is arranged in the phase change material storage unit to monitor the temperature in the dry and wet touch reproduction unit so as to adjust the working states of the infrared ceramic heater array, the thermoelectric cooler array, and the fan array.

[0010] Optionally, an infrared touch frame is fixed on the bidirectional filter membrane. The infrared touch frame can obtain the position of the finger during touch, combine the temperature in the dry and wet touch reproduction unit collected by the temperature sensor, calculate the output signal, and send the output signal to the infrared ceramic heater array, the thermoelectric cooler array, and the fan array, so as to reproduce the dry and wet touch at the corresponding position of the dry and wet touch sensing body.

[0011] Optionally, a right-side-up driving component is arranged on one side of the dry and wet touch reproduction device, that is, the stepping motor is above the lead screw, and is used to drive the lifting plate to move vertically to reproduce the dry and wet touch. An upside-down driving component is arranged on the other side of the dry and wet touch reproduction device, that is, the lead screw is above the stepping motor, and is used to drive the lower pressing plate to move vertically to press the dry and wet touch sensing body tightly to prevent the dry and wet touch sensing body from slipping when the finger slides on its surface. The output end of the stepping motor transmits torque to the lead screw, the lead screw is equipped with the slider, the slider is fixedly connected to the lifting plate through the connecting piece, the lead screw rotates to drive the slider to move, and then drives the lifting plate to move vertically. Similarly, the other set of driving components of the device drives the lower pressing plate to descend to press the dry and wet touch sensing body tightly.

[0012] The second solution of the present invention is to provide a method for reproducing dry and wet touch sensations based on phase change materials and touch quantification values. Based on the device for reproducing dry and wet touch sensations based on phase change materials and touch quantification values, the quantification values of the dry and wet touch characteristics of the commonality, group individuality, or individual individuality of an object obtained by the dry and wet touch quantification system are transmitted to the device for reproducing dry and wet touch sensations. According to the quantification values of the dry and wet touch characteristics, the finger position obtained by the infrared touch frame, and the temperature inside the dry and wet touch reproduction unit collected by the temperature sensor, the lifting height of the lifting plate and the current and duration flowing through the infrared ceramic heater array, the thermoelectric cooler array, and the fan array are set. When a finger touches the bidirectional filter membrane, the finger can perceive the dry and wet touch sensations reproduced by the quantification values of the dry and wet touch characteristics. By changing the lifting height of the lifting plate and the current and duration flowing through the infrared ceramic heater array, the thermoelectric cooler array, and the fan array, the dry and wet touch sensations corresponding to different quantification values of the dry and wet touch characteristics are obtained. The humidity sensor monitors the humidity on the surface of the bidirectional filter membrane and compares the quantification values of the dry and wet touch characteristics corresponding to the surface humidity monitoring value with the quantification values of the dry and wet touch characteristics of the object to be reproduced. According to the error between the two quantification values of the dry and wet touch characteristics, the lifting height of the lifting plate required for the dry and wet touch perception body and the current and duration flowing through the infrared ceramic heater array, the thermoelectric cooler array, and the fan array are adjusted until the error between the two quantification values of the dry and wet touch characteristics is eliminated.

[0013] Optionally, the specific reproduction steps are as follows: Step 1: Obtain the quantification values of the dry and wet touch characteristics of the object through the dry and wet touch quantification system; Step 2: The driving component drives the lower pressing plate to move vertically downward until it presses the dry and wet touch reproduction unit; Step 3: Use a finger to touch the surface of the bidirectional filter membrane. The finger position is captured by the infrared touch frame, and based on the quantification values of the dry and wet touch characteristics of the object, the current and duration flowing through the infrared ceramic heater array, the thermoelectric cooler array, and the fan array, and the upward displacement of the lifting plate are calculated; Step 4: When the temperature inside the dry and wet touch reproduction unit is higher than the phase change temperature of the capsule-type phase change material in the dry and wet touch reproduction unit, the capsule-type phase change material changes from a solid state to a liquid state, and then the driving component drives the lifting plate to move upward, pushing the liquid capsule-type phase change material out of the bidirectional filter membrane; Step 5: The humidity sensor monitors the humidity on the surface of the dry and wet touch perception body, the temperature sensor monitors the temperature inside the dry and wet touch perception body, and compares the quantification values of the dry and wet touch characteristics corresponding to the surface humidity monitoring value with the quantification values of the dry and wet touch characteristics of the object to be reproduced. According to the error between the two quantification values of the dry and wet touch characteristics, the numerical values of the control parameters of the lifting plate, the infrared ceramic heater array, the thermoelectric cooler array, and the fan array required for the dry and wet touch perception body are adjusted until the error is eliminated, realizing the dynamic and accurate reproduction of the dry and wet touch sensations; Step Six: The quantified value of the dry and wet touch characteristics of the object is simultaneously transmitted to the virtual reality system, and an object corresponding to the quantified value of the dry and wet touch characteristics is constructed in the virtual reality system. When the user touches the dry and wet touch sensor, the dry and wet touch and vision of the object are simultaneously reproduced for the user, realizing the dry and wet touch perception that integrates touch and vision.

[0014] Compared with the prior art, the present invention has the following advantages: By adopting the present invention, control parameters are set according to the quantified value of the dry and wet touch characteristics to reproduce the real dry and wet touch, rather than judging the dry and wet touch of materials through vision and object characteristics. Moreover, it can reproduce the dry and wet touch with the same temperature in different regions or the dry and wet touch with a gradual change in temperature in different regions according to specific requirements, which is applied to industries such as textiles to realize the remote perception of dry and wet touch, and can be applied to fields such as online shopping and remote intelligent manufacturing. Description of the Drawings

[0015] Figure 1 It is a three-dimensional view of the dry and wet touch reproduction device based on phase change materials and touch quantification values of the present invention.

[0016] Figure 2 It is a three-dimensional view of the dry and wet touch reproduction unit in the present invention.

[0017] Figure 3 It is a cross-sectional view of the dry and wet touch sensor in the present invention.

[0018] In the figure: frame 1, connecting piece 2, infrared touch frame 3, bidirectional filter membrane 4, humidity sensor 5, dry and wet touch reproduction unit 6, upper side plate 7, lower pressing plate 8, refrigeration chip array 9, height limiting plate 10, limiting column 11, lifting plate 12, support plate 13, fan array 14, lower side plate 15, infrared ceramic heater array 16, bottom plate 17, L-shaped connecting plate 18, slider 19, lead screw 20, stepping motor 21, 3×3 grid 22, phase change material storage unit 23, capsule-type phase change material combination unit 24, capsule-type phase change material 25, temperature sensor 26. Detailed Embodiments

[0019] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0020] The present invention covers any substitutions, modifications, equivalent methods, and solutions made within the essence and scope of the present invention. In order to enable the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention without these detailed descriptions. In addition, for the purpose of illustration, the drawings of the present invention are not drawn exactly to scale, and this is hereby explained.

[0021] As Figure 1As shown in the figure, a dry-wet touch reproduction device based on a phase change material and a tactile quantization value according to the present invention includes a dry-wet touch sensor, a temperature control component, a support component, and a drive component. The specific components include a frame 1, a connecting piece 2, an infrared touch frame 3, a bidirectional filter membrane 4, a humidity sensor 5, a dry-wet touch reproduction unit 6, an upper side plate 7, a lower pressing plate 8, a thermoelectric cooler array 9, a height limiting plate 10, a limiting column 11, a lifting plate 12, a support plate 13, a fan array 14, a lower side plate 15, an infrared ceramic heater array 16, a bottom plate 17, an L-shaped connecting plate 18, a slider 19, a lead screw 20, and a stepping motor 21.

[0022] The frame 1 is connected to the four corners of the upper side plate 7, the support plate 13, the lower side plate 15, and the bottom plate 17. The top view of the dry-wet touch sensor is also rectangular. The infrared touch frame 3 is placed above the dry-wet touch sensor and is used to capture the finger position and send a position signal. The bidirectional filter membrane 4 is placed above the dry-wet touch reproduction unit 6. The dry-wet touch reproduction unit 6 is placed above the height limiting plate 10, and the number is determined according to requirements. The lower pressing plate 8 is placed above the bidirectional filter membrane 4. The humidity sensor 8 is placed on the surface of the dry-wet touch sensor and is used to obtain the surface humidity data. The height limiting plate 10 is flush with the limiting column 11. The limiting column 11 is placed on the support plate 13 and is used to fix the dry-wet touch reproduction unit 6. The output end of the stepping motor 21 transmits torque to the lead screw 20. The slider 19 is installed on the lead screw 20. The slider 19 is fixedly connected to the lower pressing plate 8 and the lifting plate 12 through the connecting piece 2, and drives the lower pressing plate 8 and the lifting plate 12 to move vertically. The fan array 14 is fixed on the lower side plate 15, and the infrared ceramic heater array 16 is fixed on the bottom plate 17 and corresponds to the limiting column 11 in the vertical direction.

[0023] As Figure 1 , 2 , as shown in Fig. 3, the dry-wet touch reproduction unit 6 includes a 3×3 grid 22, a phase change material storage unit 23, a capsule-type phase change material combination unit 24, and a temperature sensor 26. The 3×3 grid 22 is arranged inside the phase change material storage unit 23. The capsule-type phase change material combination unit 24 includes at least nine kinds of capsule-type phase change materials 25 with different phase change temperatures. The capsule-type phase change materials 25 are evenly distributed by volume in each grid of the 3×3 grid 22. The temperature sensors 26 are fixed in each grid of the 3×3 grid 22.

[0024] The specific reproduction steps of this device are as follows: A set of drive components on one side starts to move. The stepping motor 21 rotates, and the torque at the output end is transmitted to the lead screw 20. The lead screw 20 drives the slider 19 to slide, driving the lower pressing plate 8 to move downward to press the edge of the dry-wet touch sensing body to prevent slipping. Then, use a finger to touch the surface of the bidirectional filter membrane 4. The infrared touch frame 3 captures the finger position, sends the position information to the modulator, and quantifies the value according to the dry-wet touch characteristics of the known object, calculates the current and duration flowing through the infrared ceramic heater array 16, the thermoelectric cooler array 9, and the fan array 14, as well as the upward displacement of the lifting plate 12. The infrared ceramic heater array 16 starts to work. After the temperature sensor 26 in the dry-wet touch reproduction unit 6 monitors that the temperature in the dry-wet touch reproduction unit 6 is higher than the phase change temperature, the drive components on the other side drive the lifting plate 12 to move, and extrude the capsule-shaped phase change material 25 that has become liquid from the bidirectional filter membrane 4, thereby reproducing the dry-wet touch. The humidity sensor 8 on the surface of the dry-wet touch sensing body is used to collect humidity data to monitor the humidity state of the surface.

[0025] The following uses a specific embodiment to further illustrate the present invention.

[0026] Select 5 objects with known dry-wet touch characteristic values, and calculate the magnitude of the current flowing through the infrared ceramic heater array required to reproduce their dry-wet touch I 1 and the time t 1. The magnitude of the current of the thermoelectric cooler array I 2 and the time t 2. The magnitude of the current of the fan array I 3 and the time t 3 and the rising height of the lifting plate h , and the dry-wet touch characteristic values and control parameters of the objects are shown in Table 1.

[0027] Table 1: Dry-wet touch characteristic values and control parameters of objects Object number 1 2 3 4 5 Dry and wet touch characteristic value 20 40 60 80 100 <![CDATA I 1(A)]]> 5 12 16 22 24 <![CDATA t 1(s)]]> 2.6 3.0 3.1 3.5 3.8 <![CDATA I 2(A)]]> 1.2 1.5 1.8 2 2.4 <![CDATA t 2(s)]]> 1.0 1.4 1.7 2.0 2.6 <![CDATA I 3(A)]]> 1.0 1.0 1.0 1.0 1.0 <![CDATA t 3(s)]]> 2.6 3.0 3.1 3.5 3.8 (cm) 1.0 1.8 2.9 4.2 4.9 At the same time, select object 3 to reproduce the dry-wet touch with a temperature gradient where the central temperature is an arithmetic progression with 20°C as the phase change temperature and a common difference of 1°C for the phase change temperature arithmetic progression. 9 dry-wet touch reproduction units are used, and the phase change temperature distribution of the capsule-shaped phase change material in the 3×3 grid of each dry-wet touch reproduction unit is shown in Table 2.

[0028] Table 2: Phase change temperature distribution of the capsule-shaped phase change material in the dry-wet touch reproduction unit for object 3 21 16 23 22 20 18 17 24 19 Turn on the power supply. The driving component drives the lower pressing plate to move vertically downward to press the dry-wet touch sensing body. When a finger touches the surface of the dry-wet touch sensing body, the position of the finger is captured by the infrared touch frame, and based on the tactile characteristic values of the object, the numerical values of various control parameters of the dry-wet touch reproduction element of the dry-wet touch sensing body are calculated, output to the dry-wet touch reproduction element, and the change values are monitored by various sensors. The dry-wet touch characteristic values reproduced by these monitored values are compared with the dry-wet touch characteristic values of the object to be reproduced. According to the error between the two sets of tactile characteristic values, the numerical values of various control parameters of the dry-wet touch reproduction element are adjusted until the error is eliminated, achieving the precise reproduction of the dry-wet touch. After the user has finished perceiving, turn off the power supply, and one-time object dry-wet tactile perception ends.

[0029] The above is only an illustration of the preferred embodiments of the present invention, and it should not be construed as a limitation of the claims. The present invention is not limited to the above embodiments, and its specific structure allows for changes. 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 dry and wet touch reproduction device based on phase change material and touch quantization value, characterized in that: The invention comprises a dry and wet touch sensing body, a temperature control component, a support component and a drive component; the dry and wet touch sensing body, the temperature control component and the drive component are all arranged on the support component; the dry and wet touch sensing body is composed of a plurality of dry and wet touch reproduction units (6) and a bidirectional filter membrane (4); the bidirectional filter membrane (4) is laid on the upper surface of the dry and wet touch reproduction unit (6); the dry and wet touch reproduction unit comprises a phase change material storage unit (23), a 3×3 grid (22) and a capsule-type phase change material combination unit (24); the phase change material storage unit (23) is provided with the 3×3 grid (22) inside; the capsule-type phase change material combination unit (24) comprises capsule-type phase change materials with at least nine phase change temperatures. The capsule-type phase change material (25) is evenly distributed in each grid of the 3×3 grid (22) by volume; the temperature control component is composed of an infrared ceramic heater array (16), a cooling plate array (9) and a fan array (14); the infrared ceramic heater array (16) emits infrared rays to heat the capsule-type phase change material combination unit (24); and the temperature change of the capsule-type phase change material combination unit (24) is dynamically regulated by controlling the current and duration flowing through the infrared ceramic heater array (16) and the current and duration flowing through the cooling plate array (9) and the fan array (14); the support component is composed of a frame (1), a lower pressure plate (8), an upper side plate (7), and a height limiting plate The frame (1) is composed of a limit column (11), a lifting plate (12), a support plate (13), a lower side plate (15), a bottom plate (17) and an L-shaped connecting plate (18), wherein the upper side plate (7) is fixed around the upper side of the frame (1), the lower side plate (15) is fixed around the lower side of the frame (1), the support plate (13) is fixed to the middle layer of the frame (1), the bottom plate (17) is fixed to the bottom of the frame (1), the height limiting plate (10) is fixed on the upper side plate (7) and is used to limit the maximum displacement of the lifting plate (12) and to achieve auxiliary positioning of the dry and wet touch reproduction unit (6), the limit column (11) and the L-shaped connecting plate (18) are fixed to the support plate (11). The plate (13) is provided with a limit column (11) for fixing the wet and dry touch reproduction unit (6); the lifting plate (12) is capable of controlling the height of the capsule-type phase change material combination unit (24) in the wet and dry touch reproduction unit (6); and the L-shaped connecting plate (18) is used to fix the driving component; the driving component is composed of a stepping motor (21), a screw rod (20), a slider (19) and a connecting member (2); the slider (19) is fixed to the lifting plate (12) and the lower pressing plate (8) through the connecting member (2); the screw rod (20) is driven to rotate by the stepping motor (21), thereby driving the lifting plate (12) and the lower pressing plate (8) to move in the vertical direction.

2. The dry and wet touch reproduction device based on phase change material and touch quantization value according to claim 1, characterized in that The phase change temperatures of the multiple capsule-type phase change materials (25) in the capsule-type phase change material combination unit (24) are an arithmetic progression; at least one capsule-type phase change material (25) with a phase change temperature is distributed in each grid of the 3×3 grid (22), and the sum of the phase change temperatures of each row, each column and diagonal is equal; the dry-wet touch reproduction unit (6) can achieve the reproduction of dry-wet touch at least nine different temperatures with the ambient temperature as the center temperature of the phase change temperature arithmetic progression; the dry-wet touch reproduction unit (6) can be combined into arrays of different sizes, and the dry-wet touch reproduction at the same temperature in different regions can be achieved by combining the dry-wet touch reproduction units (6) with the same center temperature in the phase change temperature arithmetic progression, and the dry-wet touch reproduction with gradual temperature changes in different regions can be achieved by combining the dry-wet touch reproduction units (6) with the gradual temperature changes in the center of the phase change temperature arithmetic progression.

3. The dry and wet touch reproduction device based on phase change material and touch quantization value according to claim 1, characterized in that A humidity sensor (5) is provided on the surface of the bidirectional filter membrane (4) for monitoring the humidity on the surface of the bidirectional filter membrane (4) so ​​as to adjust the rising height of the lifting plate (12).

4. The dry and wet touch reproduction device based on phase change material and touch quantization value according to claim 2, characterized in that The cooling sheet array (9) is distributed around the outside of the wet and dry touch reproduction unit (6); the infrared ceramic heater array (16) is located on the bottom plate (17) directly below the wet and dry touch reproduction unit (6); the fan array (14) is fixed on the lower side plate (15); and a temperature sensor (26) is arranged in the phase change material storage unit (23) for monitoring the temperature in the wet and dry touch reproduction unit (6) so as to adjust the working states of the infrared ceramic heater array (16), the cooling sheet array (9) and the fan array (14).

5. The dry and wet touch reproduction device based on phase change material and touch quantization value according to claim 3, characterized in that An infrared touch frame (3) is fixed on the bidirectional filter (4), and the infrared touch frame (3) is capable of acquiring the position of a finger during touch, and combining the temperature in the dry and wet touch reproduction unit (6) collected by the temperature sensor (26), to obtain an output signal through calculation, and the output signal is sent to the infrared ceramic heater array (16), the cooling sheet array (9) and the fan array (14), thereby reproducing the dry and wet touch at the corresponding position of the dry and wet touch sensing body.

6. A method for reproducing wet and dry touch based on phase change material and tactile quantification value, based on the device for reproducing wet and dry touch based on phase change material and tactile quantification value according to any one of claims 1 to 5, characterized in that: The quantified values ​​of the common dry and wet tactile characteristics of the object, the group personality or the individual personality, obtained by the dry and wet tactile quantification system, are transmitted to the dry and wet tactile reproduction device. According to the quantified values ​​of the dry and wet tactile characteristics, the finger position obtained by the infrared touch frame and the temperature in the dry and wet tactile reproduction unit collected by the temperature sensor, the lifting height of the lifting plate and the current and duration flowing through the infrared ceramic heater array, the cooling plate array and the fan array are set. When the finger touches the bidirectional filter membrane, the finger can sense the dry and wet tactile sensation reproduced by the quantified values ​​of the dry and wet tactile characteristics; by changing the lifting height of the lifting plate and the current flowing through the infrared ceramic heater array, the cooling plate array and the fan array, the dry and wet tactile sensation can be reproduced by the quantified values ​​of the dry and wet tactile characteristics. The current and duration of the infrared ceramic heater array, cooling sheet array and fan array are used to obtain the dry and wet tactile sensations corresponding to different quantified values ​​of dry and wet tactile sensation characteristics. The humidity sensor monitors the humidity on the surface of the bidirectional filter membrane and compares the quantified value of the dry and wet tactile sensation characteristics corresponding to the surface humidity monitoring value with the quantified value of the dry and wet tactile sensation characteristics of the object to be reproduced. According to the error between the two quantified values ​​of the dry and wet tactile sensation characteristics, the lifting height of the lifting plate required for the dry and wet tactile sensation sensing body and the current and duration flowing through the infrared ceramic heater array, cooling sheet array and fan array are adjusted until the error between the two quantified values ​​of the dry and wet tactile sensation characteristics is eliminated.

7. The method for reproducing dry and wet touch based on phase change material and touch quantization value according to claim 6, characterized in that: The specific steps include: Step 1: Obtaining the quantitative value of the dry and wet tactile characteristics of the object through the dry and wet tactile quantification system; Step 2: The driving assembly drives the lower pressing plate to move vertically downward to press the dry and wet touch reproduction unit; Step 3: Use a finger to touch the surface of the bidirectional filter membrane. The finger position is captured by the infrared touch frame, and the dry and wet touch characteristics of the object are used to quantify the value. The current and duration passing through the infrared ceramic heater array, the cooling sheet array and the fan array, as well as the upward displacement of the lifting plate are calculated; Step 4: When the temperature in the dry-wet touch reproduction unit is higher than the phase change temperature of the capsule-type phase change material in the dry-wet touch reproduction unit, the capsule-type phase change material changes from solid to liquid, and then the driving component drives the lifting plate to move upward to push the liquid capsule-type phase change material out of the bidirectional filter membrane; Step 5: The humidity on the surface of the dry and wet touch sensing body is monitored by a humidity sensor, and the temperature sensor is used to monitor the internal temperature of the dry and wet touch sensing body. The quantized value of the dry and wet touch characteristics corresponding to the surface humidity monitoring value is compared with the quantized value of the dry and wet touch characteristics of the object to be reproduced. According to the error between the two quantized values ​​of the dry and wet touch characteristics, the values ​​of the control parameters of the lifting plate, infrared ceramic heater array, cooling sheet array and fan array required by the dry and wet touch sensing body are adjusted until the error is eliminated, thereby achieving dynamic and accurate reproduction of the dry and wet touch. Step 6: The quantified values ​​of the dry and wet tactile characteristics of the object are simultaneously transmitted to the virtual reality system, and an object corresponding to the quantified values ​​of the dry and wet tactile characteristics is constructed in the virtual reality system. When the user touches the dry and wet tactile perception body, the dry and wet tactile and visual sensations of the object are simultaneously reproduced to the user, thereby realizing dry and wet tactile perception that integrates touch and vision.

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