阅读说明：本技术 一种人工智能皮肤及其制备方法和应用 (Artificial intelligence skin and preparation method and application thereof ) 是由 赖文勇 牛坚 公彦婷 方诗镪 董艳 于 2021-09-06 设计创作，主要内容包括：本发明涉及光电功能材料及其应用领域,具体涉及一种人工智能皮肤及其制备方法和应用。所述人工智能皮肤包括水凝胶电解质薄膜,设置在水凝胶电解质薄膜上方的电极材料a,设置在电极材料a上方的顶层绝缘保护材料,设置在水凝胶电解质薄膜下方的电极材料b,设置在电极材料b下方的顶层绝缘保护材料；所述水凝胶电解质薄膜是基于一维光子晶体结构水凝胶,具有双重网络结构。本发明提供的人工智能皮肤以具有光子晶体结构的水凝胶为基础,其中具有光子晶体结构的水凝胶表现出光学、电学以及力学的各向异性响应能力,在柔性触摸屏、运动轨迹追踪器等领域有着广泛的应用价值。(The invention relates to the field of photoelectric functional materials and application thereof, in particular to artificial intelligent skin and a preparation method and application thereof. The artificial intelligence skin comprises a hydrogel electrolyte film, an electrode material a arranged above the hydrogel electrolyte film, a top layer insulation protection material arranged above the electrode material a, an electrode material b arranged below the hydrogel electrolyte film, and a top layer insulation protection material arranged below the electrode material b; the hydrogel electrolyte film is based on one-dimensional photonic crystal structure hydrogel and has a dual-network structure. The artificial intelligent skin provided by the invention is based on the hydrogel with the photonic crystal structure, wherein the hydrogel with the photonic crystal structure shows anisotropic response capability of optics, electricity and mechanics, and has wide application value in the fields of flexible touch screens, motion trail trackers and the like.)

1. An artificial intelligence skin is characterized by comprising a hydrogel electrolyte film, an electrode material a arranged above the hydrogel electrolyte film, a top layer insulating protective material arranged above the electrode material a, an electrode material b arranged below the hydrogel electrolyte film, and a top layer insulating protective material arranged below the electrode material b;

the hydrogel electrolyte film is based on one-dimensional photonic crystal structure hydrogel and has a dual-network structure.

2. The artificial intelligence skin of claim 1, wherein the top layer insulating and protecting material and the bottom layer insulating and protecting material are the same or different and are selected from one of VHB tape, plastic, rubber and elastomer; the electrode material a and the electrode material b are the same or different and are selected from inert electrodes or active electrodes.

3. The artificial intelligence skin of claim 1, wherein the hydrogel electrolyte membrane has a first network structure of a layered structure obtained by self-assembly of molecules or polymers having layered self-assembly ability, and a second network structure of a three-dimensional network structure obtained by polymerization of polymerizable monomers between layers.

4. The artificial intelligence skin of claim 3, wherein the method of preparing the hydrogel electrolyte membrane comprises the steps of:

(1) dispersing a surfactant, a molecule or polymer with lamellar self-assembly capability and a polymerizable monomer in water, and stirring at constant temperature to obtain uniform self-assembly precursor liquid;

(2) adding an initiator into the self-assembly precursor solution to initiate polymerization to obtain a hydrogel film;

(3) and soaking the hydrogel film in electrolyte to obtain the hydrogel electrolyte film.

5. The artificial intelligence skin of claim 4, wherein in step (1):

the surfactant is one or more of anionic, cationic, zwitterionic and nonionic;

the molecule or polymer with layered self-assembly capability is selected from one or more of polycaprolactone-b-polyethylene oxide, polyethylene glycol monomethyl ether-b-polylactic acid, alkenyl succinic acid, glyceryl monostearate and glyceryl dodecyl itaconate;

the polymerizable monomer is one or more of acrylamide, acrylic acid and vinyl alcohol; the concentration of the polymerizable monomer in the self-assembly precursor liquid is 0.1-10M;

the molar ratio of the molecule or polymer with lamellar self-assembly capability to the surfactant is 1000:1-1: 1;

the mixing ratio of the molecule or polymer with layered self-assembly capacity to the polymerizable monomer is 1: 1-1: 100, respectively;

the constant-temperature stirring is specifically stirring for 10 minutes to 1000 minutes at the temperature of 30 ℃ to 100 ℃.

6. The artificial intelligence skin of claim 5, wherein in step (2):

the initiator is a photoinitiator or a thermal initiator, and the mass concentration of the initiator in the self-assembly precursor liquid is 0.05-0.5%;

the initiated polymerization is specifically as follows: injecting into a reaction tank composed of parallel glass plates with an interval of 0.01-5mm at a speed of 0.1-5cm/s, and polymerizing for 5-8 hours under photopolymerization or thermal polymerization conditions;

in the step (3): the electrolyte is selected from one of lithium chloride, sodium chloride, phosphoric acid, sulfuric acid, sodium hydroxide and potassium hydroxide with the concentration of 0.01-10M, and the soaking time is 0.1-1000 h.

7. Use of the artificial intelligence skin according to any one of claims 1-6 in sensors for direction recognition, color flexible displays and adaptive cloaking devices.

8. A color flexible display, characterized in that the specific structure comprises the artificial intelligence skin of any one of claims 1-6, an electronic push rod array, a power driving module, a central processing unit, and a power management module;

wherein the artificial intelligence skin is arranged on the electronic push rod; the central processing unit consists of an instruction center, a processor calculation center and a universal port; the instruction center in the central processing unit is connected with the electronic push rod array and used for sending a control instruction to the electronic push rod array to display the color; the processor calculation center in the central processing unit is connected with the instruction center and the universal port and is used for generating a pulse signal for controlling the operation of the motor; the universal port in the central processing unit is connected with the power driving device through a connecting data line and is used for transmitting a control signal to the power driving device;

the power drive device includes: the protection circuit comprises a stepper, a loop motor, a protection circuit and a connection data line; the stepper is connected with the universal port of the central processing unit and used for executing the data instruction sent by the central processing unit; the loop motor is connected with the stepper and the protection circuit and is used for providing working voltage for the stepper; the protection circuit is connected with the stepper and the motor, is internally provided with overheating protection with hysteresis effect, and automatically recovers work after the temperature is reduced; the connection data line is connected with the central processing unit and the power management module and used for data transmission.

9. The color flexible display of claim 8, wherein the array of electronic push rods are identical micro electronic push rods having one of a circular, rectangular and elliptical shape, the circular dimension being 0.1cm to 10cm in diameter, the rectangular dimension being 0.1cm to 10cm x 0.1cm to 10cm, the elliptical dimension having a major diameter and a minor diameter each being 0.1cm to 10 cm.

10. An adaptive stealth device, which is characterized in that the specific structure comprises the artificial intelligence skin, a camera module, a central processing unit, a power driving device, a power management module and a display device, wherein the artificial intelligence skin is defined in any one of claims 1 to 6;

wherein the artificial intelligence skin is arranged in the display device; the camera module comprises a light sensing element, a communication data port and a connecting data line; the light sensing element on the camera is connected with the communication data port and used for converting background information into coded information; the communication data port on the camera is connected with the light sensing element and the central processing unit and transmits the coded information data to the central processing unit; the connecting data line is connected with the camera module and the central processing unit and is used for data transmission; the central processing unit comprises an instruction center, a processor calculation center, a universal port and a connection data line; the command center in the central processing unit is connected with the camera module and used for collecting background information of the control command sent by the camera module and reading data sent by the serial communication data port; the processor calculation center in the central processing unit is connected with the instruction center and the universal port and is used for generating a pulse signal for controlling the operation of the motor; the universal port in the central processing unit is connected with the power driving device through a connecting data line and is used for transmitting a control signal to the power driving device; and the connecting data line is connected with the central processing unit and the power driving device and is used for data transmission. The power driving device comprises a stepper, a loop motor, a protection circuit and a connecting data line; the stepper is connected with the universal port of the central processing unit and used for executing the data instruction sent by the central processing unit; the loop motor in the stepper of the power driving device is connected with the stepper and the protection circuit and is used for providing working voltage for the stepper; the protection circuit in the stepper of the power driving device is connected with the stepper and the motor, the overheating protection with hysteresis effect is arranged in the protection circuit, and the protection circuit automatically restores to work after the temperature is reduced; and the connecting data line is connected with the central processing unit and the power management module and is used for data transmission.

Technical Field

The invention relates to the field of photoelectric functional materials and application thereof, in particular to artificial intelligent skin and a preparation method and application thereof.

Background

The skin is the outer layer of soft, elastic tissue that covers the body of an animal. As the largest sensory organ of the human body, the skin can provide the brain with a great deal of information about the natural environment. Artificial smart skins that mimic body sensations are expected to play a role as replacements for sensing and actuation interfaces in biological skins or virtual reality. It has shown potential applicability in haptic devices, prostheses, wearable medical sensors, implantable medical devices, and artificial skin of robots. Recent work has produced electronic skin capable of detecting sensations, similar to human skin, including pressure, temperature, humidity and deformation. However, unlike real skin, most of the developed electronic skins exhibit similar responses to signals under different pressure conditions, and thus it is difficult to distinguish complex applied stress fields. Indeed, as an important function of somatosensory systems, the ability of the skin to distinguish stresses with different directions and levels (e.g. normal or shear stresses) in real time is essential to provide texture and slippage information. Future artificial intelligence (e.g., robots) will require such feedback to perform some trivial task, such as holding a glass or inserting a key into a lock. Meanwhile, the artificial intelligence skin with the capability also helps to establish an advanced human-computer interface and is beneficial to the perception capability of a remote or virtual object. Therefore, the development of artificial intelligence skin with anisotropic response capability can respond differently to different directions of pressure, which is an encouraging and challenging research topic.

Up to now, there are several methods to distinguish pressures of different directions and levels in real time. One typical approach is to prepare artificial intelligence skin based on a composite conductive film in which the conductive fillers are uniformly distributed without orientation. The distance between the conductive fillers will vary according to the applied tensile or compressive force, and thus by detecting the resistance signal of the prepared composite conductive film, the direction and magnitude of the applied force can be detected simultaneously. The detection accuracy greatly depends on the morphology of the conductive filler and the dispersibility in the mixture, and therefore the properties of different batches of composite conductive films may vary greatly from one another. Another method of making artificial intelligence skin anisotropic response capability can be achieved through fine structural design. Artificial intelligence skin mimics hills and the mechanoreceptors of real skin and is reported to be able to measure and distinguish normal and tangential forces in real time. However, the assembly of the device requires a complicated process. Therefore, it is not only necessary, but also highly challenging, to explore artificial intelligence skin with inherent anisotropy to forces in different directions in a simple, reliable manner.

Disclosure of Invention

Based on the above, the invention provides an artificial intelligence skin, and a preparation method and application thereof. The artificial intelligence skin has inherent anisotropy in force in different directions and can be used for preparing various functional devices.

One of the technical schemes of the invention is that the artificial intelligence skin comprises a hydrogel electrolyte film, an electrode material a arranged above the hydrogel electrolyte film, a top layer insulation protection material arranged above the electrode material a, an electrode material b arranged below the hydrogel electrolyte film and a top layer insulation protection material arranged below the electrode material b;

the hydrogel electrolyte film is based on one-dimensional photonic crystal structure hydrogel and has a dual-network structure.

Further, the top layer insulating and protecting material and the bottom layer insulating and protecting material are the same or different and are selected from one of VHB adhesive tape, plastic, rubber and elastomer; the electrode material a and the electrode material b are the same or different and are selected from inert electrodes or active electrodes.

Further, the hydrogel electrolyte film has a first network structure of a layered structure obtained by self-assembly of molecules or polymers having layered self-assembly capability, and a second network structure of a three-dimensional network structure obtained by polymerization of polymerizable monomers between layers.

Further, the preparation method of the hydrogel electrolyte film comprises the following steps:

(1) dispersing a surfactant, a molecule or polymer with lamellar self-assembly capability and a polymerizable monomer in water, and stirring at constant temperature to obtain uniform self-assembly precursor liquid;

(2) adding an initiator into the self-assembly precursor solution to initiate polymerization to obtain a hydrogel film;

(3) and soaking the hydrogel film in electrolyte to obtain the hydrogel electrolyte film.

Further, in the step (1):

the surfactant is one or more of anionic, cationic, zwitterionic and nonionic; specifically selected from: one or more of oleic acid, stearic acid, lauric acid, sodium lauryl sulfate, sodium cetyl sulfate, sodium stearyl sulfate, sodium cyclooctylsuccinate, sodium dodecylbenzenesulfonate, lecithin, and fatty glyceride;

the molecule or polymer with layered self-assembly capability is selected from one or more of polycaprolactone-b-polyethylene oxide, polyethylene glycol monomethyl ether-b-polylactic acid, alkenyl succinic acid, glyceryl monostearate and glyceryl dodecyl itaconate;

the polymerizable monomer is one or more of acrylamide, acrylic acid and vinyl alcohol; the concentration of the polymerizable monomer in the self-assembly precursor liquid is 0.1-10M;

the molar ratio of the molecule or polymer with lamellar self-assembly capability to the surfactant is 1000:1-1: 1;

the mixing ratio of the molecule or polymer with layered self-assembly capacity to the polymerizable monomer is 1: 1-1: 100, respectively;

the constant-temperature stirring is specifically stirring for 10 minutes to 1000 minutes at the temperature of 30 ℃ to 100 ℃.

Further, in the step (2):

the initiator is a photoinitiator or a thermal initiator, and the mass concentration of the initiator in the self-assembly precursor liquid is 0.05-0.5%;

the initiated polymerization is specifically as follows: injecting into a reaction tank composed of parallel glass plates with an interval of 0.01-5mm at a speed of 0.1-5cm/s, and polymerizing for 5-8 hours under photopolymerization or thermal polymerization conditions;

in the step (3): the electrolyte is selected from one of lithium chloride, sodium chloride, phosphoric acid, sulfuric acid, sodium hydroxide and potassium hydroxide with the concentration of 0.01-10M, and the soaking time is 0.1-1000 h.

According to the second technical scheme, the artificial intelligence skin is applied to a sensor for direction identification, a color flexible display and self-adaptive stealth equipment.

The third technical scheme of the invention is that the color flexible display is structurally characterized by comprising the artificial intelligent skin, an electronic push rod array, a power driving module, a central processing unit and a power management module;

wherein the artificial intelligence skin is arranged on the electronic push rod; the central processing unit consists of an instruction center, a processor calculation center and a universal port; the instruction center in the central processing unit is connected with the electronic push rod array and used for sending a control instruction to the electronic push rod array to display the color; the processor calculation center in the central processing unit is connected with the instruction center and the universal port and is used for generating a pulse signal for controlling the operation of the motor; the universal port in the central processing unit is connected with the power driving device through a connecting data line and is used for transmitting a control signal to the power driving device;

the power drive device includes: the protection circuit comprises a stepper, a loop motor, a protection circuit and a connection data line; the stepper is connected with the universal port of the central processing unit and used for executing the data instruction sent by the central processing unit; the loop motor is connected with the stepper and the protection circuit and is used for providing working voltage for the stepper; the protection circuit is connected with the stepper and the motor, is internally provided with overheating protection with hysteresis effect, and automatically recovers work after the temperature is reduced; the connection data line is connected with the central processing unit and the power management module and used for data transmission.

Furthermore, the electronic push rod array is the same miniature electronic push rod, the shape is one of a circle, a rectangle and an ellipse, the diameter of the circle is 0.1cm-10cm, the size of the rectangle is 0.1-10cm multiplied by 0.1-10cm, and the length of the ellipse are respectively 0.1cm-10 cm.

Fourth, a self-adaptation stealthy apparatus of the technical scheme of the invention, the concrete structure includes above-mentioned artificial intelligence skin, camera module, central processing unit, power drive unit, power management module and display device;

wherein the artificial intelligence skin is arranged in the display device; the camera module comprises a light sensing element, a communication data port and a connecting data line; the light sensing element on the camera is connected with the communication data port and used for converting background information into coded information; the communication data port on the camera is connected with the light sensing element and the central processing unit and transmits the coded information data to the central processing unit; the connecting data line is connected with the camera module and the central processing unit and is used for data transmission; the central processing unit comprises an instruction center, a processor calculation center, a universal port and a connection data line; the command center in the central processing unit is connected with the camera module and used for collecting background information of the control command sent by the camera module and reading data sent by the serial communication data port; the processor calculation center in the central processing unit is connected with the instruction center and the universal port and is used for generating a pulse signal for controlling the operation of the motor; the universal port in the central processing unit is connected with the power driving device through a connecting data line and is used for transmitting a control signal to the power driving device; and the connecting data line is connected with the central processing unit and the power driving device and is used for data transmission. The power driving device comprises a stepper, a loop motor, a protection circuit and a connecting data line; the stepper is connected with the universal port of the central processing unit and used for executing the data instruction sent by the central processing unit; the loop motor in the stepper of the power driving device is connected with the stepper and the protection circuit and is used for providing working voltage for the stepper; the protection circuit in the stepper of the power driving device is connected with the stepper and the motor, the overheating protection with hysteresis effect is arranged in the protection circuit, and the protection circuit automatically restores to work after the temperature is reduced; and the connecting data line is connected with the central processing unit and the power management module and is used for data transmission.

Compared with the prior art, the invention has the beneficial effects that:

the artificial intelligence skin provided by the invention is based on the hydrogel with the photonic crystal structure, wherein the hydrogel with the photonic crystal structure shows anisotropic response capability of optics, electricity and mechanics. Based on the hydrogel with anisotropic response capability, the multifunctional artificial intelligence skin can be prepared by combining an external driving circuit and an electromechanical system. Based on the anisotropic response capability of mechanics, the prepared artificial intelligent skin can conveniently distinguish the direction of applied stress without complex sensor design or harsh processing conditions, and has wide application value in the fields of flexible touch screens, motion trail trackers and the like. Based on the periodically adjustable photonic crystal structure, the prepared artificial intelligent skin can realize real-time reversible color response in the whole visible light region under a strain condition, and has wide application prospects in the fields of electric-optical double-response man-machine interaction, flexible display, self-adaptive camouflage and the like.

The artificial intelligent skin is prepared on the basis of a colored hydrogel electrolyte film, has the inherent anisotropic response capability, and has the characteristics of simple preparation, easy control of the reaction process, high repeatability, easy adjustment and the like; the artificial intelligent skin based on the anisotropic hydrogel can conveniently detect the force and the movement direction through electric signals without complex circuit design and fine process design, and can be used for flexible touch screens, movement track trackers and other directions; the device can generate instantaneous and reversible color response to applied strain in the whole visible light region, is attached to a human body, and can realize real-time effective man-machine interaction through human eyes during movement so as to realize photoelectric dual response; the artificial intelligent skin can also be applied to advanced scenes such as novel flexible full-color display screens, self-adaptive camouflage and the like.

Drawings

FIG. 1 is a cross-sectional SEM image of a colored hydrogel electrolyte membrane in example 1 of the present invention;

FIG. 2 is a graph showing the results of the optical anisotropy test of the artificial intelligent skin in example 2 of the present invention;

FIG. 3 is a graph showing the results of electrical anisotropy tests on artificial intelligent skin in example 2 of the present invention;

FIG. 4 is a graph showing the results of the mechanical anisotropy test of the artificial intelligent skin in example 2 of the present invention;

fig. 5 is an application diagram of the artificial intelligent skin as a scene for tracking a motion trajectory in embodiment 2 of the present invention.

Detailed Description

Reference will now be made in detail to various exemplary embodiments of the invention, the detailed description should not be construed as limiting the invention but as a more detailed description of certain aspects, features and embodiments of the invention.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Further, for numerical ranges in this disclosure, it is understood that each intervening value, between the upper and lower limit of that range, is also specifically disclosed. Every smaller range between any stated value or intervening value in a stated range and any other stated or intervening value in a stated range is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated by reference herein for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.

It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The description and examples are intended to be illustrative only.

As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.

Example 1 preparation of hydrogel electrolyte film

(1) Mixing 3.17X 10^-5g of the surfactant Sodium Dodecyl Sulfate (SDS),0.164g of the amphiphilic molecule Dodecyl Glyceryl Itaconate (DGI),0.569g of the polymerizable monomer acrylamide (AAM) and 6.17X 10^-4Dispersing a crosslinking agent N, N' -Methylene Bisacrylamide (MBAA) in 4mL of deionized water, and stirring at the rotating speed of 500rpm/min at 50 ℃ until a uniform and transparent mixed solution is obtained;

(2) adding 0.0018g of photoinitiator 2-hydroxy-4' - (2-hydroxyethoxy) -2-methyl propiophenone into the mixed solution in the step (1), stirring for 5min at the rotating speed of 500rpm/min at 50 ℃ in the dark condition, and then performing phase formation in a water bath kettle for 24 hours at 55 ℃ until a uniform and transparent light blue solution is obtained;

(3) injecting the light blue mixed solution in the step (2) into a glass mold with the interval of 1000 mu m, and carrying out photopolymerization for 6 hours in an ultraviolet crosslinking instrument at the temperature of 55 ℃ to obtain hydrogel;

(4) the hydrogel obtained is firstly hydrolyzed in aqueous solution for 100 hours to obtain the hydrogel with rapid color change.

(5) And (3) swelling the hydrogel obtained in the step (4) in a 2M lithium chloride solution for 24 hours until the hydrogel is balanced to obtain the colored hydrogel electrolyte film.

The SEM image of the cross section of the prepared color hydrogel electrolyte film is shown in figure 1, and the SEM image of the cross section of the color hydrogel electrolyte film can be shown in figure 1 to show that the color hydrogel electrolyte film is of a laminated structure, and the common hydrogel without a photonic crystal structure is of a porous structure.

Example 2 preparation of Artificial Intelligence skin

(1) Mixing 3.17X 10^-5g of the surfactant Sodium Dodecyl Sulfate (SDS),0.164g of the amphiphilic molecule Dodecyl Glyceryl Itaconate (DGI),0.569g of the polymerizable monomer acrylamide (AAM) and 6.17X 10^-4Dispersing a crosslinking agent N, N' -Methylene Bisacrylamide (MBAA) in 4mL of deionized water, and stirring at the rotating speed of 500rpm/min at 50 ℃ until a uniform and transparent mixed solution is obtained;

(2) adding 0.0018g of photoinitiator 2-hydroxy-4' - (2-hydroxyethoxy) -2-methyl propiophenone into the mixed solution in the step (1), stirring for 5min at the rotating speed of 500rpm/min at 50 ℃ in the dark condition, and then performing phase formation in a water bath kettle for 24 hours at 55 ℃ until a uniform and transparent light blue solution is obtained;

(3) injecting the light blue mixed solution in the step (2) into a glass mold with the interval of 1000 mu m, and carrying out photopolymerization for 6 hours in an ultraviolet crosslinking instrument at the temperature of 55 ℃ to obtain hydrogel;

(4) hydrolyzing the obtained hydrogel in an aqueous solution for 100 hours to obtain the hydrogel with rapid color change;

(5) swelling the hydrogel obtained in the step (4) in a 2M lithium chloride solution for 24 hours until the hydrogel is balanced to obtain a colored hydrogel electrolyte film;

(6) the prepared hydrogel electrolyte film is used for preparing a resistance type artificial intelligence skin, and the specific structure is as follows: VHB/electrode material/hydrogel electrolyte film/electrode material/VHB, wherein the electrode material is a copper patch and forms a resistance type artificial intelligence skin;

the experimental verification of the optical anisotropy, the electrical anisotropy and the mechanical anisotropy of the prepared artificial intelligent skin comprises the following specific processes:

for optical anisotropy, adopting incident light to carry out naked eye detection, placing the artificial intelligence skin on a black table, irradiating the artificial intelligence skin by white light, and observing the color change of the artificial intelligence skin from different angles;

for electrical anisotropy, measured with an impedance tester, an AC impedance spectrum was measured with a reference 600+ instrument (Gamry Instruments) over a frequency range of 1MHz to 0.1Hz with an amplitude of 40 mV. Measuring the current density of the artificial intelligent skin under different direct current biases as a function of time by adopting a source meter (2635A, Jishili), wherein the current directions can be respectively parallel to the top surface of the gel, namely the direction of the layered double layer and the direction vertical to the top of the gel;

a commercial tester (Tensilon RTC-1310A, Orientec Co.) was used for the analysis of the mechanical anisotropy. Before the test, the slab-shaped bulk gel was cut into a dumbbell-shaped standard size using a gel cutter (JIS-K6251-7), and compressed in such a manner that the compression could be parallel to the top surface of the gel, i.e., in the direction of the layered double layer and perpendicular to the top surface of the gel, respectively.

The specific results are shown in FIGS. 2-4; it can be seen from fig. 2 that the artificial intelligence skin prepared has a dependency on the angle of incident light, and simply different colors can be obtained by observing at different angles, and it can be seen from fig. 3 that for the same artificial intelligence skin, the impedance is tested from different directions, which are far different and can reach two orders of magnitude, and it can be seen from fig. 4 that for the same photonic crystal hydrogel, the stress-strain curves pressed from different directions are different, and the obtained elastic modulus is also greatly different.

The prepared artificial intelligent skin is applied as a scene for tracking a motion trail, and the specific process is as follows:

the prepared motion trail tracking device has a structure of VHB/electrode/artificial intelligence skin/electrode/VHB, and Chinese characters are directly written on the VHB by fingers.

The results are shown in fig. 5, and it can be seen from fig. 5 that the writing and recognition of chinese characters can be performed based on the resulting artificial intelligence skin having anisotropic response.

Example 3 preparation of an adaptive camouflage device

The resistance-type artificial intelligence skin prepared in the embodiment 2 is used as a color development unit, and a self-adaptive camouflage device is formed by combining a motor module, and the specific structure of the resistance-type artificial intelligence skin comprises the artificial intelligence skin, a camera module, a central processing unit, a power driving device, a power management module and a display device;

wherein the artificial intelligence skin is arranged in the display device; the camera module comprises a light sensing element, a communication data port and a connecting data line; the light sensing element on the camera is connected with the communication data port and used for converting background information into coded information; the communication data port on the camera is connected with the light sensing element and the central processing unit and transmits the coded information data to the central processing unit; the connecting data line is connected with the camera module and the central processing unit and is used for data transmission; the central processing unit comprises an instruction center, a processor calculation center, a universal port and a connection data line; the command center in the central processing unit is connected with the camera module and used for collecting background information of the control command sent by the camera module and reading data sent by the serial communication data port; the processor calculation center in the central processing unit is connected with the instruction center and the universal port and is used for generating a pulse signal for controlling the operation of the motor; the universal port in the central processing unit is connected with the power driving device through a connecting data line and is used for transmitting a control signal to the power driving device; and the connecting data line is connected with the central processing unit and the power driving device and is used for data transmission. The power driving device comprises a stepper, a loop motor, a protection circuit and a connecting data line; the stepper is connected with the universal port of the central processing unit and used for executing the data instruction sent by the central processing unit; the loop motor in the stepper of the power driving device is connected with the stepper and the protection circuit and is used for providing working voltage for the stepper; the protection circuit in the stepper of the power driving device is connected with the stepper and the motor, the overheating protection with hysteresis effect is arranged in the protection circuit, and the protection circuit automatically restores to work after the temperature is reduced; and the connecting data line is connected with the central processing unit and the power management module and is used for data transmission.

The performance of the prepared self-adaptive camouflage device is verified, and the specific process is as follows:

writing in a self-adaptive camouflage program under the power supply of a power supply, converting the program through a central processing unit, and then issuing a command to a power driving device; the power driving device sends out corresponding actions to the color development setting with the artificial intelligent skin after receiving the command, namely changing the magnitude of the pulling force; (ii) a

The concrete results are as follows:

the artificial intelligent skin in the display device deforms under the action of external tension to generate color change corresponding to the tension, and the color of the result is consistent with the color of the environment;

therefore, the color of the external environment is identified through the camera, the central processing unit receives color information processed by the camera and converts the color information into a control signal to be transmitted to the power driving device, the power driving device generates a pulling force with variable size under the control signal of the central processing unit, the artificial intelligence skin deforms under the action of the external pulling force to generate color change corresponding to the pulling force, the color change is consistent with the color of the environment, and the purpose of self-adaption invisibility is achieved.

Example 4 preparation of a flexible display device

The artificial intelligent skin prepared in the embodiment 2 is used for preparing the flexible display device, and the specific structure comprises the following components: the system comprises an artificial intelligence skin, an electronic push rod array, a power driving module, a central processing unit and a power management module;

wherein the artificial intelligence skin is arranged on the electronic push rod; the central processing unit consists of an instruction center, a processor calculation center and a universal port; the instruction center in the central processing unit is connected with the electronic push rod array and used for sending a control instruction to the electronic push rod array to display the color; the processor calculation center in the central processing unit is connected with the instruction center and the universal port and is used for generating a pulse signal for controlling the operation of the motor; the universal port in the central processing unit is connected with the power driving device through a connecting data line and is used for transmitting a control signal to the power driving device;

the power drive device includes: the protection circuit comprises a stepper, a loop motor, a protection circuit and a connection data line; the stepper is connected with the universal port of the central processing unit and used for executing the data instruction sent by the central processing unit; the loop motor is connected with the stepper and the protection circuit and is used for providing working voltage for the stepper; the protection circuit is connected with the stepper and the motor, is internally provided with overheating protection with hysteresis effect, and automatically recovers work after the temperature is reduced; the connection data line is connected with the central processing unit and the power management module and used for data transmission.

The performance of the prepared self-adaptive camouflage device is verified, and the specific process is as follows:

under the power supply of a power supply, writing in a self-adaptive camouflage program, converting the program through a central processing unit, and then issuing a command to an electronic push rod, wherein the electronic push rod generates a variable-size thrust under a control signal of the central processing unit, and the artificial intelligent skin deforms under the action of external pressure of the electronic push rod;

the concrete results are as follows:

the artificial intelligent skin deforms under the action of external pressure of the electronic push rod, and corresponding color change is generated due to Bragg diffraction;

from the results, it can be obtained: according to the embodiment of the invention, the artificial intelligent skin is used as a color development unit, and a flexible display device is formed by combining a motor module. This equipment is through the colour of the distance control color development part of electron push rod stroke, converts the digital signal of figure into electronic signal, and power drive arrangement is carried to control signal, electron push rod promptly, and power drive arrangement produces the thrust that the size can become under central processing unit's control signal, and artificial intelligence skin takes place to deform under the effect of external pressure, takes place Bragg diffraction and has produced corresponding colour change, reaches the purpose that flexible pattern shows.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included therein.