Preparation method of von noiemann-like structure sensing device, device, circuit and system

Abstract

The invention discloses a preparation method of a von noiemann-like structure sensing device, the device, a circuit and a system. The method comprises the following steps: preparing water-based polymer conductive ink; the method comprises the following steps: depositing conductive ink on a flexible substrate to form a conductive film with a customized shape, curing the conductive film, selecting two parts of first conductive films and a plurality of parts of second conductive films, and respectively leading out electrodes on the two parts of first conductive films and the plurality of parts of second conductive films; the two first conductive films are separated by using a first gasket so that the two first conductive films are in a non-contact state to obtain a flexible tactile sensor; second gaskets are arranged on the peripheries of the second conductive films, electrodes are led out and then packaged, and the electrochromic device is obtained; the flexible tactile sensor and the electrochromic device are integrated to obtain the von-like Noiemann device. The von noiemann-like structure device has the advantages of low power consumption, low data volume and easiness in direct observation.

Description

Technical Field

[0001] The present application relates to the field of hardware circuit design, and specifically to a method for preparing a von Neumann-like structure sensor device, a von Neumann-like structure sensor device, a voltage divider circuit, a control circuit and a control system. Background Art

[0002] Embodied intelligence is a way to enable objects (including the human body) to interact with the environment, which promotes the important transformation of artificial intelligence from virtual to real. Traditional artificial intelligence mainly relies on intelligent algorithms and redundant data, and lacks communication with the external environment. Compared with traditional artificial intelligence, embodied intelligence integrates memory, cognition and perception of the external environment, and dynamically realizes a closed-loop system that can capture, process, store and feedback information. By applying embodied intelligence to wearable devices on the human body, human memory and interaction capabilities can be enhanced through interaction to complete more complex tasks.

[0003] In the prior art, in order to enhance the interactive capabilities through embodied intelligent devices, smart electronic devices such as tactile sensors and tablets are usually used in combination with the smart Internet of Things to identify and record external information. However, these devices are made of silicon-based materials, which are uncomfortable to wear and difficult to carry. As ergonomic devices, flexible electronic products can ensure wearing comfort while meeting the memory and interactive functions of embodied intelligence. In order to meet the requirements of ergonomics, these flexible electronic devices should ensure waterproofness, improve bendability, fast response and excellent stability, and promote multifunctional human-computer interaction in complex environments. However, existing sensor devices are often complex in design and have poor scalability, and cannot meet the needs of multi-functions in different environments. Summary of the invention

[0004] In view of the above problems, the present application provides a method for preparing a von Neumann-like structure sensor device, a von Neumann-like structure sensor device, a voltage divider circuit, a control circuit and a control system to solve the problems of complex design and poor scalability of existing sensor devices.

[0005] In a first aspect, the present application provides a method for preparing a von Neumann-like structure sensor device, comprising the following steps:

[0006] S1: Preparation of water-based polymer conductive ink;

[0007] S2: depositing the conductive ink on a flexible substrate to form a conductive film of a customized shape and curing the conductive film, wherein the conductive film includes a strip-shaped first conductive film or a square-shaped second conductive film, selecting two strip-shaped first conductive films and several square-shaped second conductive films, and respectively drawing electrodes on the two strip-shaped first conductive films and the several square-shaped second conductive films;

[0008] S3: using a first gasket to separate the two first conductive films so that they are not in contact with each other, thereby obtaining a flexible tactile sensor;

[0009] S4: Select a plurality of square second conductive films, arrange second gaskets around the second conductive films, lead out electrodes and then package them to obtain an electrochromic device;

[0010] S5: Integrate and program the flexible tactile sensor and the electrochromic device to form a functional von Neumann-like device.

[0011] Optionally, step S1 includes:

[0012] A conductive ink slurry of a preset weight is selected, wherein the conductive ink slurry is poly (3,4-ethylenedioxythiophene)-polystyrene sulfonate) slurry, and the components of each gram of the conductive ink slurry are as follows: 0.83 g of poly (3,4-ethylenedioxythiophene)-polystyrene sulfonate dispersion, 0.05 g of deionized water, 0.01 g of hydroxyethyl cellulose, 0.05 g of dimethyl sulfoxide, 0.05 g of leveling agent, 0.005 g of wetting agent and 0.005 g of defoaming agent;

[0013] The conductive ink of a preset weight is placed in a magnetic stirrer for magnetic stirring for several hours to make the conductive ink uniform, thereby obtaining the water-based polymer conductive ink.

[0014] Optionally, the flexible substrate is polyethylene terephthalate;

[0015] Step S2 includes:

[0016] Print two strip-shaped first conductive films and several square-shaped second conductive films on polyethylene terephthalate with a thickness of 0.1 mm by screen printing;

[0017] Bake at 120 degrees Celsius for 20 minutes, and use conductive metal paste to draw electrodes on two of the first conductive films and several of the second conductive films, and then place them in an oven at 120 degrees Celsius for baking for 5 minutes, so that the first conductive film or the second conductive film is solidified on the polyethylene terephthalate.

[0018] Optionally, step S3 includes:

[0019] Polydimethylsiloxane is used to fix the electrodes of the two first conductive films, and the two strip-shaped first conductive films are mirror-imaged and packaged using a first gasket with a thickness of 0.44 mm. Subsequently, polydimethylsiloxane is sealed around the edges to form a sealed strip-shaped flexible tactile sensor.

[0020] Optionally, step S4 includes:

[0021] Several square second conductive films are respectively surrounded by double-sided tape with a thickness of 0.5 mm, an ITO transparent film is attached on the top and electrodes are led out, then lithium salt electrolyte gel is directly injected into the unsealed part between the ITO transparent film and the second conductive film, and polydimethylsiloxane is used to seal to form a sealed electrochromic device;

[0022] Optionally, the length and width of the first conductive film are 8 cm and 4 mm respectively, and the side length of the second conductive film is 12 mm.

[0023] In a second aspect, the present application provides a von Neumann-like structure sensor device, which is prepared according to the preparation method described in the first aspect of the present application.

[0024] In a third aspect, the present application provides a voltage divider circuit, the voltage divider circuit is used to generate different voltage-divided analog signals, the voltage divider circuit comprising:

[0025] A von Neumann-like structure sensor device, which is the von Neumann-like structure sensor device as described in the second aspect of the present application;

[0026] The voltage-dividing resistor is connected to one of the electrodes of the von Neumann-like structure sensor device and a power source, and the other electrode of the von Neumann-like structure sensor device is connected to the power source to form a loop.

[0027] In a fourth aspect, the present application provides a control circuit, the control circuit comprising:

[0028] The voltage divider circuit is the voltage divider circuit described in the third aspect of the present application;

[0029] The Arduino development board comprises a power module, an analog-to-digital converter and a microcontroller, wherein the analog-to-digital converter is used to convert the divided voltage analog signal received from the divided voltage circuit into a digital signal, the microcontroller is used to process the digital signal, and the power module is used to provide power for the divided voltage circuit, the analog-to-digital converter and the microcontroller.

[0030] In a fifth aspect, the present application provides a control system, the control system comprising:

[0031] A control circuit, which is the control circuit as described in the fourth aspect of the present application;

[0032] The terminal device is communicatively connected with the microcontroller of the control circuit.

[0033] Different from the prior art, the above technical scheme involves a preparation method, device, circuit and system of a von Neumann-like structure sensor device, the method comprising: S1: preparing an aqueous polymer conductive ink; S2: depositing the conductive ink on a flexible substrate to form a conductive film of a customized shape and solidifying it, the conductive film comprising a strip-shaped first conductive film or a square-shaped second conductive film, selecting two strip-shaped first conductive films and several square-shaped second conductive films, and respectively leading out electrodes on the two first conductive films and several square-shaped second conductive films; S3: using a first gasket to separate the two first conductive films so that they are in a non-contact state, thereby obtaining a flexible tactile sensor; S4: selecting several square-shaped second conductive films, setting second gaskets around the second conductive films, leading out electrodes and then encapsulating them, thereby obtaining an electrochromic device; S5: integrating and programming the flexible tactile sensor and the electrochromic device to form a functional von Neumann-like device. The von Neumann-like structure devices involved in this application include electrochromic devices and flexible tactile sensors with upper and lower separated structures. They will only generate signals when touched, and the color-changing devices have a continuous color-changing function. They have the advantages of low power consumption, low data volume and easy direct observation, and can meet the interaction needs in different environments.

[0034] The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation mode and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present invention and other related contents, and shall not be considered as limiting the present application.

[0036] In the drawings of the specification:

[0037] Figure 1 A flowchart of a method for preparing a von Neumann-like structure sensor device according to the first exemplary embodiment of the present application;

[0038] Figure 2 A flowchart of a method for preparing a von Neumann-like structure sensor device according to a second exemplary embodiment of the present application;

[0039] Figure 3 A flowchart of a method for preparing a von Neumann-like structure sensor device according to a third exemplary embodiment of the present application;

[0040] Figure 4A flowchart of a method for preparing a von Neumann-like structure sensor device according to a fourth exemplary embodiment of the present application;

[0041] Figure 5 A module diagram of a voltage divider circuit according to an exemplary embodiment of the present application;

[0042] Figure 6 A schematic diagram of a control circuit according to an exemplary embodiment of the present application;

[0043] Figure 7 A schematic diagram of a control system according to an exemplary embodiment of the present application;

[0044] Figure 8 A schematic diagram of a module of a von Neumann architecture involved in an exemplary embodiment of the present application;

[0045] Fig. 9 A schematic diagram of a module of a von Neumann-like device according to an exemplary embodiment of the present application;

[0046] Fig.10 is a top cross-sectional view of an electrochromic device according to an exemplary embodiment of the present application;

[0047] Fig.11 is a front cross-sectional view of an electrochromic device according to an exemplary embodiment of the present application;

[0048] Fig.12 is a top cross-sectional view of a flexible tactile sensor according to an exemplary embodiment of the present application;

[0049] Fig.13 is a front cross-sectional view of a flexible tactile sensor according to an exemplary embodiment of the present application;

[0050] Fig.14 A top view of a von Neumann-like device according to Embodiment 1 of the present application;

[0051] Fig.15 This is a module diagram of a control system when the terminal device involved in Example 1 of the present application is a password protection system;

[0052] Fig.16 A top view of a von Neumann-like device according to Embodiment 2 of the present application;

[0053] Fig.17 This is a module diagram of a control system when the terminal device involved in Example 2 of the present application is a smart home system;

[0054] Fig.18 A top view of a von Neumann-like device according to Embodiment 3 of the present application;

[0055] Fig.19This is a module diagram of a control system when the terminal device involved in Example 3 of the present application is an intention expression system.

[0056] The reference numerals in the above drawings are described as follows:

[0057] 11. first flexible substrate; 12. first double-sided tape; 14. first conductive metal paste; 15. first electrode; 18. first conductive film;

[0058] 1. second flexible substrate; 2. second double-sided tape; 3. second lithium salt electrolyte gel; 4. second conductive metal paste; 5. second electrode; 6. second sealing material; 7. ITO transparent film; 8. second conductive film;

[0059] 10. Voltage divider circuit; 100. Von Neumann-like sensor device; 101. Voltage divider resistor;

[0060] 20. Arduino development board; 201. power module; 202. analog-to-digital converter; 203. microcontroller;

[0061] 30. Control circuit; 40. Terminal device; 50. Control system. DETAILED DESCRIPTION

[0062] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0063] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0064] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0065] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0066] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0067] Without further limitations, in this application, the words "include", "comprises", "has" or other similar open-ended expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0068] In this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0069] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0070] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0071] In the first aspect, Figure 1 As shown, the present application provides a method for preparing a von Neumann-like structure sensor device, comprising the following steps:

[0072] S1: Preparation of water-based polymer conductive ink;

[0073] S2: depositing the conductive ink on a flexible substrate to form a conductive film of a customized shape and curing the conductive film, wherein the conductive film includes a strip-shaped first conductive film or a square-shaped second conductive film, selecting two strip-shaped first conductive films and several square-shaped second conductive films, and respectively drawing electrodes on the two strip-shaped first conductive films and the several square-shaped second conductive films;

[0074] S3: using a first gasket to separate the two first conductive films so that they are not in contact with each other, thereby obtaining a flexible tactile sensor;

[0075] S4: Select a plurality of square second conductive films, arrange second gaskets around the second conductive films, lead out electrodes and then package them to obtain an electrochromic device;

[0076] S5: Integrate and program the flexible tactile sensor and the electrochromic device to form a functional von Neumann-like device.

[0077] In this embodiment, both the first gasket and the second gasket may be made of double-sided tape, and the second conductive film leads out one electrode through step S2 and leads out another electrode through step S4.

[0078] The von Neumann-like structure sensor device prepared by the above scheme has the advantage of being able to perceive external information compared to other traditional artificial intelligence devices. The von Neumann-like structure sensor device includes an electrochromic device and a flexible tactile sensor with an upper and lower separation structure. The flexible tactile sensor will only generate a signal when touched, and the color-changing device has a continuous color-changing function, and has the advantages of low power consumption and low data volume. In addition, the von Neumann-like structure device of the present application has excellent programmability, and the electrochromic devices can be arranged according to needs and given specific functions to cope with specific application scenarios.

[0079] In some embodiments, Figure 2 As shown, step S1 includes:

[0080] Step S201: Selecting a conductive ink slurry of a preset weight;

[0081] In step S201, the conductive ink slurry is poly (3,4-ethylenedioxythiophene)-polystyrene sulfonate) slurry, and the components of each gram of the conductive ink slurry are as follows: 0.83 grams of poly (3,4-ethylenedioxythiophene)-polystyrene sulfonate dispersion, 0.05 grams of deionized water, 0.01 grams of hydroxyethyl cellulose, 0.05 grams of dimethyl sulfoxide, 0.05 grams of leveling agent, 0.005 grams of wetting agent and 0.005 grams of defoaming agent. Preferably, the preset weight is 5 grams.

[0082] Step S202: placing a preset weight of conductive ink into a magnetic stirrer for magnetic stirring for several hours to make the conductive ink uniform, thereby obtaining the water-based polymer conductive ink.

[0083] Preferably, the stirring time is 12-15 hours, which can make the conductive ink more uniform.

[0084] In some embodiments, the flexible substrate is polyethylene terephthalate. Figure 3 As shown, step S2 includes:

[0085] Step S301: Print two strip-shaped first conductive films and several square-shaped second conductive films on polyethylene terephthalate with a thickness of 0.1 mm by screen printing;

[0086] Step S302: Bake at 120 degrees Celsius for 20 minutes, and use conductive metal paste to draw electrodes on two of the first conductive films and several of the second conductive films, and then place them in an oven at 120 degrees Celsius for 5 minutes to solidify the first conductive film or the second conductive film on the polyethylene terephthalate.

[0087] Preferably, the length and width of the first conductive film are 8 cm and 4 mm respectively, and the side length of the second conductive film is 12 mm.

[0088] In some embodiments, step S3 includes:

[0089] Polydimethylsiloxane is used to fix the electrodes of the two first conductive films, and the two strip-shaped first conductive films are mirror-imaged and packaged using a first gasket with a thickness of 0.44 mm. Subsequently, polydimethylsiloxane is sealed around the edges to form a sealed strip-shaped flexible tactile sensor.

[0090] In some embodiments, Figure 4 As shown, step S4 includes:

[0091] Step S401: surround a plurality of square second conductive films with double-sided tapes with a thickness of 0.5 mm, attach an ITO transparent film on the top and lead out electrodes;

[0092] Step S402: directly injecting lithium salt electrolyte gel into the unsealed portion between the ITO transparent film and the second conductive film, and sealing with polydimethylsiloxane to form a sealed electrochromic device.

[0093] In the third aspect, Figure 5 As shown, the present application provides a voltage divider circuit 10, the voltage divider circuit is used to generate different voltage-divided analog signals, and the voltage divider circuit 10 includes:

[0094] The von Neumann-like structure sensor device 100 is the von Neumann-like structure sensor device as described in the second aspect of the present application;

[0095] The voltage-dividing resistor 101 is connected to one of the electrodes of the von Neumann-like structure sensor device and a power source, and the other electrode of the von Neumann-like structure sensor device is connected to the power source to form a loop.

[0096] In the fourth aspect, Figure 6 As shown, the present application provides a control circuit 30, and the control circuit 30 includes:

[0097] The voltage divider circuit 10 is the voltage divider circuit described in the third aspect of the present application;

[0098] The Arduino development board 20 includes a power module 201, an analog-to-digital converter 202 and a microcontroller 203. The analog-to-digital converter 202 is used to convert the voltage-divided analog signal received from the voltage-dividing circuit 10 into a digital signal. The microcontroller 203 is used to process the digital signal. The power module 201 is used to provide power for the voltage-dividing circuit 10, the analog-to-digital converter 202 and the microcontroller 203.

[0099] Preferably, the power supply voltage provided by the power module 201 is 5 V. The microcontroller can be implemented by software, hardware, firmware or a combination thereof, and can use at least one of a circuit, a single or multiple application-specific integrated circuits (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a central processing unit (CPU), and a microprocessor.

[0100] In the fifth aspect, Figure 7 As shown, the present application provides a control system 50, the control system comprising:

[0101] The control circuit 30 is the control circuit as described in the fourth aspect of the present application;

[0102] The terminal device 40 is communicatively connected with the microcontroller 203 of the control circuit 30 .

[0103] Preferably, the terminal device may be a mobile terminal, a computer or other device with a signal interaction function, such as a password protection system, a smart home system, an intention expression system, etc. By calculating the electrical signals with different intensity characteristics generated at different points of the flexible touch sensor, signal input and control of the terminal device can be achieved.

[0104] like Figure 8 As shown in the figure, the traditional von Neumann architecture mainly includes the following key components:

[0105] Arithmetic unit: It is the core component responsible for performing arithmetic and logical operations. When the computer executes addition, subtraction, multiplication, division, and logical judgments such as AND, OR, and NOT, the arithmetic unit plays a key role and is the "processing plant" for data processing.

[0106] Controller: Like the "brain center" of the computer, it is responsible for directing and coordinating the work of various computer components, interpreting and executing instructions, determining the order of operations during the computer's operation, and ensuring that various components work together in an orderly manner.

[0107] Memory: It is divided into internal memory (RAM) and external memory (such as hard disk, USB flash drive, etc.). Memory is used to temporarily store running programs and data. It has a fast read and write speed, allowing the processor to quickly obtain the required information, but the data is easily lost after power failure; external memory is used to store large amounts of data and programs for a long time. The data is still saved after power failure, but the read and write speed is relatively slow.

[0108] Input devices: Common ones include keyboards, mice, scanners, etc. They are responsible for converting external information into digital signals that can be recognized and processed by computers. They are the "windows" for computers to obtain external data.

[0109] Output devices: such as monitors, printers, speakers, etc., present the results of computer processing in a form that people can intuitively perceive, and are the "export" for computers to feedback information to the outside world.

[0110] There is a close and orderly relationship between these components: first, the input device sends data and instructions to the memory, which not only provides the required data for the operator but also stores the operation results. The controller reads the instructions from the memory, decodes and analyzes the instructions, and then sends control signals to the operator, memory, input and output devices, etc. according to the requirements of the instructions to coordinate their work. Under the command of the controller, the operator operates on the data obtained from the memory and stores the results back to the memory. Finally, the final result in the memory is displayed to the user through the output device.

[0111] like Fig. 9 As shown, in a von Neumann-like device, the following components are included:

[0112] Memory storage: It is equivalent to the memory in the traditional von Neumann system and plays a vital role. On the one hand, it stores data from external input and pre-set program instructions, providing the raw materials required for the auxiliary logic calculation components; on the other hand, it is used to save the intermediate results and final calculation results generated by the logic circuit control components to ensure the continuity of the entire data processing process.

[0113] Auxiliary logic calculation: Similar to the operator in the traditional system, it performs various arithmetic operations and logical judgments according to the established logical rules based on the data provided by the memory storage, such as performing complex mathematical formula calculations, data comparison and screening, etc. It is the key execution link for realizing data processing and information conversion, and the calculation results will be fed back to the memory storage component in a timely manner.

[0114] Logic circuit control: plays a role similar to that of a controller and is the "command center" of von Neumann-like devices. It reads instructions from memory storage, interprets the meaning and operation requirements of the instructions, and then sends precise control signals to auxiliary logic calculations, tactile sensors, output displays and other components, coordinating their start, run, pause and data interaction rhythms to ensure the orderly operation of the entire device.

[0115] Tactile sensor: As an extension of the input device, it is responsible for collecting physical information in the external environment, such as pressure, temperature, texture, etc., and converting these analog signals into digital signals and transmitting them to the memory storage component, providing diverse raw data for subsequent logical calculations, and starting the entire data processing process.

[0116] Output display: Similar to traditional output devices, it obtains the final processed data results from the memory storage and presents them in a visual and human-friendly way, such as displaying images, numbers, text information, etc., so that users can intuitively understand the working results of the von Neumann-like device and complete the output closed loop of data from the inside to the outside of the device.

[0117] In short, under the unified scheduling of logic circuit control, data input is realized through tactile sensors, data processing is completed with the help of memory storage and auxiliary logic calculations, and finally the output results are displayed by the output. The cooperation with each other enables von Neumann-like devices to accomplish complex functional tasks.

[0118] like Figure 10-Figure 19 As shown, the von Neumann-like device and its preparation method involved in the present application are specifically described below in combination with Examples 1-35:

[0119] Example 1

[0120] The following are the design steps of Example 1:

[0121] (1) preparing 5 g of PEDOT:PSS (poly (3,4-ethylenedioxythiophene-polystyrene sulfonic acid)) conductive ink, wherein the ink comprises 4.15 g of PEDOT:PSS dispersion, 0.25 g of deionized water, 0.05 g of HEC (hydroxyethyl cellulose), 0.25 g of DMSO (dimethyl sulfoxide), 0.25 g of leveling agent, 0.025 g of wetting agent and 0.025 g of defoaming agent;

[0122] (2) placing the PEDOT:PSS conductive ink obtained in step (1) on a magnetic stirrer and magnetically stirring for 15 hours to make the conductive ink uniform;

[0123] (3) The uniform PEDOT:PSS conductive ink obtained in step (2) is screen-printed to form two strip-shaped first conductive films and four square-shaped second conductive films on polyethylene terephthalate (PET) with a thickness of 0.1 mm, and baked at 120 degrees Celsius for 20 minutes. Conductive wires are respectively led out with conductive metal paste (preferably conductive copper-silver paste), and then placed in an oven for baking at 120 degrees Celsius for 5 minutes. The side length of the square second conductive film is 12 mm, and the length and width of the strip-shaped first conductive film are 8 cm and 4 mm, respectively.

[0124] (4) fixing the electrodes of the two first conductive films obtained in step (3) with polydimethylsiloxane (PDMS), then using a first gasket with a thickness of 0.44 mm to mirror-image and encapsulate the two strip-shaped conductive films, and then sealing the PDMS around them to form a sealed strip-shaped flexible tactile sensor;

[0125] (5) The four square second conductive films obtained in step (3) are respectively surrounded by double-sided tape with a thickness of 0.5 mm, an ITO transparent film is attached to the top and an electrode is led out, and then a lithium salt electrolyte gel is directly injected into the unsealed portion between the ITO transparent film and the square second conductive film, and then sealed with PDMS to form a sealed electrochromic device;

[0126] (6) The prepared strip-shaped flexible tactile sensor and electrochromic device are integrated and programmed to form a functional von Neumann-like device.

[0127] The von Neumann-like device prepared in Example 1 includes an electrochromic device and a strip-shaped flexible tactile sensor, such as Figure 10-11 As shown, the electrochromic device includes a second flexible substrate 1, a second conductive film 8 deposited on the second flexible substrate 1, a second electrode 5 led out through a second conductive metal paste 4, a second double-sided tape 2 attached to both sides of the second conductive film 8, and an ITO transparent film 7 covering the top, an injected first lithium salt electrolyte gel 3 filled between the ITO transparent film 7 and the second conductive film 8, and sealed with a second sealing material 6 (the material can be polydimethylsiloxane, i.e., PDMS).

[0128] like Figure 12-13 As shown, the strip-shaped flexible tactile sensor includes a first flexible substrate 11, a first electrode 15 is led out through a first conductive metal paste 14, and a first sealing material ( Figure 12-13 The material may be polydimethylsiloxane (PDMS) for sealing and reinforcement. The two facing first conductive films 18 are separated by the first double-sided tape 12 to form an air layer.

[0129] The von Neumann-like device prepared in Example 1 can be applied to a password protection system. The device has a shape as shown in the attached figure. Fig.14 As shown. The prepared von Neumann-like device can be attached to the front of the calculator interface, and the flexible tactile sensor is connected to an external voltage-dividing resistor, an Arduino development board and a personal computer application terminal. Among them, the flexible tactile sensor is connected in series with the voltage-dividing resistor, and the 5V power supply is provided by the Arduino development board. The digital port of the Arduino development board is connected to the electrochromic device to control the voltage at both ends to control the color change. The analog signal at both ends of the voltage-dividing resistor is connected to the analog port of the Arduino, and the digital signal is obtained through digital-to-analog conversion to control the electrochromic device sequence, thereby indicating the currently entered password. The binary password obtained according to this sequence is transmitted to the application terminal, and finally it is judged whether the entered password is correct according to the pre-set program. This embodiment embodies the functions of tactile perception and auxiliary logic calculation of von Neumann-like devices. The module schematic diagram of the password protection system is shown in Fig.15 shown.

[0130] Example 2

[0131] The following are the design steps of Example 2:

[0132] (1) preparing 7 g of PEDOT:PSS conductive ink, the ink comprising 5.81 g of PEDOT:PSS dispersion, 0.35 g of deionized water, 0.07 g of HEC, 0.35 g of DMSO, 0.35 g of leveling agent, 0.035 g of wetting agent and 0.035 g of defoaming agent;

[0133] (2) placing the PEDOT:PSS conductive ink obtained in step (1) on a magnetic stirrer and magnetically stirring for 13 hours to make the conductive ink uniform;

[0134] (3) The uniform PEDOT:PSS conductive ink obtained in step (2) is screen-printed to form two strip-shaped first conductive films and six square-shaped second conductive films on 0.1 mm thick PET, and baked at 120 degrees Celsius for 18 minutes. Conductive wires are respectively led out with conductive copper-silver paste, and then placed in an oven at 120 degrees Celsius for 7 minutes. The side length of the square second conductive film is 10 mm, and the length and width of the strip-shaped first conductive film are 10 cm and 3 mm respectively.

[0135] (4) fixing the electrodes of the two strip-shaped first conductive films obtained in step (3) with PDMS, and then using a first gasket with a thickness of 0.38 mm to mirror-image and encapsulate the two strip-shaped first conductive films, and then sealing the PDMS around them to form a sealed strip-shaped flexible tactile sensor;

[0136] (5) The six square second conductive films obtained in step (3) are respectively surrounded by a double-sided tape with a thickness of 0.5 mm, an ITO transparent film is attached to the top and an electrode is led out, and then a lithium salt electrolyte gel is directly injected into the unsealed portion between the ITO transparent film and the square second conductive film, and then sealed with PDMS to form a sealed electrochromic device;

[0137] (6) Strip-shaped flexible tactile sensors and electrochromic devices are integrated and programmed to form functional von Neumann-like devices.

[0138] The von Neumann-like device prepared in Example 2 can be applied to a smart home system for tactile perception and memory storage. The device has a shape as shown in the attached figure. Fig.16 As shown. The prepared von Neumann-like device is attached to clothing, and the flexible tactile sensor is externally connected to a voltage-dividing resistor, an Arduino development board, and a personal computer application terminal. Among them, the flexible tactile sensor is connected in series with the voltage-dividing resistor, and the 5V power supply is provided by the Arduino development board. The digital port of the Arduino development board is connected to the electrochromic device to control the voltage at both ends to control the color change. The analog signal at both ends of the voltage-dividing resistor is connected to the analog port of the Arduino, and the digital signal is obtained through digital-to-analog conversion to control the sequence of the electrochromic device, thereby indicating the current working status of the corresponding furniture appliance. In addition, the electrochromic time can be programmed to observe the corresponding remaining working time of the furniture appliance. This embodiment embodies the tactile perception and memory storage functions of von Neumann-like devices. The module schematic diagram of the smart home system is shown in Fig.17 shown.

[0139] Example 3

[0140] The following are the design steps of Example 3:

[0141] (1) preparing 10 g of PEDOT:PSS conductive ink, wherein the ink comprises 8.3 g of PEDOT:PSS dispersion, 0.4 g of deionized water, 0.1 g of HEC, 0.5 g of DMSO, 0.5 g of leveling agent, 0.05 g of wetting agent and 0.05 g of defoaming agent;

[0142] (2) placing the PEDOT:PSS conductive ink obtained in step (1) on a magnetic stirrer and magnetically stirring for 12 hours to make the conductive ink uniform;

[0143] (3) The uniform PEDOT:PSS conductive ink obtained in step (2) is screen-printed to form two strip-shaped first conductive films and nine square-shaped second conductive films on 0.1 mm thick PET, and baked at 120 degrees Celsius for 18 minutes. Conductive wires are respectively led out with conductive metal paste, and then placed in an oven at 120 degrees Celsius for 5 minutes. The side length of the square second conductive film is 12 mm, and the length and width of the strip-shaped first conductive film are 12 cm and 4 mm respectively.

[0144] (4) The electrodes of the two strip-shaped first conductive films obtained in step (3) are fixed with PDMS, and then the two strip-shaped first conductive films are mirror-imaged and packaged using a first gasket with a thickness of 0.32 mm, and then the PDMS is sealed around to form a sealed strip-shaped flexible tactile sensor;

[0145] (5) The nine square second conductive films obtained in step (3) were respectively surrounded by double-sided tapes with a thickness of 0.5 mm, an ITO transparent film was attached to the top and electrodes were led out, and then lithium salt electrolyte gel was directly injected into the unsealed area between the ITO transparent film and the square second conductive film, and then sealed with PDMS to form a sealed electrochromic device;

[0146] (6) Strip-shaped flexible tactile sensors and electrochromic devices are integrated and programmed to form functional von Neumann-like devices.

[0147] The von Neumann-like device of Example 3 can be applied to a tactile perception and output display intention expression system. The device has a shape as shown in the attached figure. Fig.18 shown.

[0148] The prepared von Neumann-like device can be attached to clothing, and the flexible tactile sensor is externally connected to a voltage-dividing resistor and an Arduino development board. Among them, the flexible tactile sensor is connected in series with the voltage-dividing resistor, and the 5V power supply is provided by the Arduino development board. The digital port of the Arduino development board is connected to the electrochromic device to control the voltage at both ends to control the color change. The analog signal at both ends of the voltage-dividing resistor is connected to the analog port of the Arduino, and the digital signal obtained after digital-to-analog conversion is transmitted to the neural network. After judgment by the neural network, the result (i.e., the user's intention) is transmitted to the Arduino, thereby controlling the electrochromic device array. This embodiment embodies the functions of tactile perception and intention expression of von Neumann-like devices. The module schematic diagram of the intention expression system is shown in the figure. Fig.19 shown.

[0149] Specifically, five letters such as "X", "M", "U", "S", and "O" can be selected as the display output of the electrochromic array, corresponding to the specific sliding behavior on the flexible tactile sensor. The system uses a long short-term memory artificial neural network to process the tactile sensor time series data. First, the sliding characteristics of the characters on the flexible tactile sensor are obtained through analog signals, and then converted into digital signals through the analog-to-digital conversion module of the microcontroller. In the data acquisition stage, 30 data samples of each letter feature were collected, and expanded to 1500 samples as a data set with Gaussian noise, and divided into training set, test set, and validation set in a ratio of 7:2:1. Next, the LSTM model reads and trains these digital signals from the microprocessor, using the Adam algorithm as the gradient descent algorithm for training. After about 200 training steps, the accuracy of both the training set and the validation set exceeded 97.1%.

[0150] The present application discloses a method for preparing a von Neumann-like structure device for embodied intelligence and its application. The von Neumann-like structure device includes a flexible tactile sensor and an electrochromic device. The preparation method first deposits an aqueous polymer conductive ink on a flexible substrate, and after curing, a conductive film having a conductive layer with a pattern of different customized shapes is obtained. Then, based on the conductive films of different shapes, a flexible tactile sensor and an electrochromic device are further prepared, and then the prepared flexible tactile sensor and electrochromic device are integrated into a von Neumann-like structure device.

[0151] When using von Neumann-like structure devices, touch position recognition is achieved by pressing different points to generate differentiated electrical signals, and one-to-one correspondence between touch and command to the electrochromic device is achieved through programming to cope with different application scenarios. This type of von Neumann structure device realizes the functions of low power consumption and multi-environment application, and presents the characteristics of low data volume under the condition of no external touch. In addition, the application also provides a control system based on von Neumann-like structure devices, which can realize tactile perception, memory storage, logical calculation and output display functions in different application scenarios, proving that it has broad development potential in the field of embodied intelligence.

[0152] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A method for preparing a von Neumann-like structure sensor device, characterized in that: The following steps are involved: S1: Preparation of water-based polymer conductive ink; S2: depositing the conductive ink on a flexible substrate to form a conductive film of a customized shape and curing the conductive film, wherein the conductive film includes a strip-shaped first conductive film or a square-shaped second conductive film, selecting two strip-shaped first conductive films and several square-shaped second conductive films, and respectively drawing electrodes on the two strip-shaped first conductive films and the several square-shaped second conductive films; S3: using a first gasket to separate the two first conductive films so that they are not in contact with each other, thereby obtaining a flexible tactile sensor; S4: Select a plurality of square second conductive films, arrange second gaskets around the second conductive films, lead out electrodes and then package them to obtain an electrochromic device; S5: Integrate and program the flexible tactile sensor and the electrochromic device to form a functional von Neumann-like device.

2. The method for preparing a von Neumann-like structure sensor device according to claim 1, characterized in that: Step S1 includes: A conductive ink slurry of a preset weight is selected, wherein the conductive ink slurry is poly (3,4-ethylenedioxythiophene)-polystyrene sulfonate) slurry, and the components of each gram of the conductive ink slurry are as follows: 0.83 g of poly (3,4-ethylenedioxythiophene)-polystyrene sulfonate dispersion, 0.05 g of deionized water, 0.01 g of hydroxyethyl cellulose, 0.05 g of dimethyl sulfoxide, 0.05 g of leveling agent, 0.005 g of wetting agent and 0.005 g of defoaming agent; The conductive ink of a preset weight is placed in a magnetic stirrer for magnetic stirring for several hours to make the conductive ink uniform, thereby obtaining the water-based polymer conductive ink.

3. The method for preparing a von Neumann-like structure sensor device according to claim 1, characterized in that: The flexible substrate is polyethylene terephthalate; Step S2 includes: Print two strip-shaped first conductive films and several square-shaped second conductive films on polyethylene terephthalate with a thickness of 0.1 mm by screen printing; Bake at 120 degrees Celsius for 20 minutes, and use conductive metal paste to draw electrodes on two of the first conductive films and several of the second conductive films, and then place them in an oven at 120 degrees Celsius for baking for 5 minutes, so that the first conductive film or the second conductive film is solidified on the polyethylene terephthalate.

4. The method for preparing a von Neumann-like structure sensor device according to claim 1 or 3, characterized in that: Step S3 includes: Polydimethylsiloxane is used to fix the electrodes of the two first conductive films, and the two strip-shaped first conductive films are mirror-imaged and packaged using a first gasket with a thickness of 0.44 mm. Subsequently, polydimethylsiloxane is sealed around the edges to form a sealed strip-shaped flexible tactile sensor.

5. The method for preparing a von Neumann-like structure sensor device according to claim 1 or 3, characterized in that: The second gasket is a double-sided tape, and step S4 includes: Surround several square second conductive films with double-sided tapes with a thickness of 0.5 mm, attach an ITO transparent film on the top and lead out electrodes; Lithium salt electrolyte gel is directly injected into the unsealed portion between the ITO transparent film and the second conductive film, and polydimethylsiloxane is used for sealing to form a sealed electrochromic device.

6. The method for preparing a von Neumann-like structure sensor device according to claim 1, characterized in that: The length and width of the first conductive film are 8 cm and 4 mm respectively, and the side length of the second conductive film is 8 mm.

7. A von Neumann-like sensor device, characterized in that: The von Neumann-like sensor device It is prepared according to the preparation method according to any one of claims 1 to 6.

8. A voltage divider circuit, characterized in that: The voltage divider circuit is used to generate analog signals with different voltage dividers, and the voltage divider circuit includes: A von Neumann-like structure sensor device, which is the von Neumann-like structure sensor device as claimed in claim 7; The voltage-dividing resistor is connected to one of the electrodes of the von Neumann-like structure sensor device and a power source, and the other electrode of the von Neumann-like structure sensor device is connected to the power source to form a loop.

9. A control circuit, characterized in that: The control circuit comprises: The voltage divider circuit is the voltage divider circuit as claimed in claim 8; The Arduino development board comprises a power module, an analog-to-digital converter and a microcontroller, wherein the analog-to-digital converter is used to convert the divided voltage analog signal received from the divided voltage circuit into a digital signal, the microcontroller is used to process the digital signal, and the power module is used to provide power for the divided voltage circuit, the analog-to-digital converter and the microcontroller.

10. A control system, characterized in that: The control system comprises: The control circuit is the control circuit as claimed in claim 9; The terminal device is communicatively connected with the microcontroller of the control circuit.

Images