Automobile sentinel mode system based on non-contact sensing electronic skin and testing device

Abstract

The application provides a car sentinel mode system based on non-contact sensing electronic skin, which comprises an electronic skin, a laminated structure attached to the surface of a car, the laminated structure comprising a laminated insulating layer, a conductive sponge layer and a composite layer; the electronic skin further comprises a nylon film on the side of the composite layer away from the insulating layer, the nylon film being electrified; a wire connected at one end to the conductive sponge layer and at the other end to the ground, the wire further being connected to an electrostatic high resistance meter; and a data processing unit electrically connected to the electrostatic high resistance meter. The nylon film can be attached to the surface of an obstacle, or other electrified obstacles can be used to replace the nylon film. When the nylon film and the laminated structure move relative to each other, electrons will transfer along the wire between the conductive sponge and the ground to form an induced current, the electrostatic high resistance meter transmits the current change to the data processing unit in real time, and the data processing unit can detect the surrounding environment in real time through the current change, so that the car can perceive the environment.

Description

Technical Field

[0001] This invention relates to the field of environmental sensing technology, and more particularly to a vehicle sentry mode system and testing device based on non-contact sensing electronic skin. Background Technology

[0002] Intelligent vehicles are crucial for building future intelligent transportation systems. They rely on onboard sensors to understand their environment and make decisions. Traditional radar and optical equipment are energy-intensive and expensive, making them unsuitable for the low-carbon and green development trends of future intelligent vehicles.

[0003] To address the above issues, this invention proposes a vehicle sentinel mode system based on non-contact sensing electronic skin. Unlike traditional radar and optical sensors, its electronic skin is based on the electrostatic induction principle of Maxwell's displacement current, enabling non-contact sensing of objects around the vehicle. It boasts advantages such as being lightweight, self-driving, and low-cost, and can also intelligently monitor and indicate blind spots. This invention provides a novel solution for intelligent environmental perception in future smart vehicles. Summary of the Invention

[0004] To address the aforementioned technical problems of high energy consumption and high cost in implementing environmental perception in existing automobiles, this invention provides a vehicle sentry mode system and testing device based on non-contact sensing electronic skin. The invention primarily utilizes its included electronic skin to sense the presence of obstacles in the surrounding environment, thereby outputting a corresponding current. An electrostatic high-resistance meter transmits the current changes to a data processing unit in real time. The data processing unit can then detect the surrounding environment in real time through these current changes, thus achieving environmental perception.

[0005] The technical means employed in this invention are as follows:

[0006] On one hand, the present invention provides a car sentry mode system based on non-contact sensing electronic skin, comprising:

[0007] Electronic skin includes a layered structure attached to the surface of an automobile, the layered structure including a layered insulating layer, a conductive sponge layer, and a composite layer; the electronic skin also includes a nylon film located on the side of the composite layer away from the insulating layer, the nylon film being charged;

[0008] A wire is connected at one end to the conductive sponge layer and at the other end to the ground. The wire is also connected to an electrostatic high-resistance meter.

[0009] The data processing unit is electrically connected to the electrostatic high-resistance meter.

[0010] Furthermore, the composite layer is made of a mixture of MXene two-dimensional material and silicone.

[0011] Furthermore, the conductive sponge layer includes a plurality of pores, which are filled with the mixed material.

[0012] Furthermore, the weight ratio of the MXene two-dimensional material in the mixed material is 3%.

[0013] Furthermore, the insulating layer is made of polyethylene terephthalate.

[0014] On the other hand, the present invention also provides a test device for a car sentry mode system based on non-contact sensing electronic skin, comprising:

[0015] Electronic skin includes a layered structure comprising a layered insulating layer, a conductive sponge layer, and a composite layer; the electronic skin also includes a nylon film located on the side of the composite layer away from the insulating layer, the nylon film being charged;

[0016] A wire is connected at one end to the conductive sponge layer and at the other end to the ground. The wire is also connected to an electrostatic high-resistance meter.

[0017] The data processing unit is electrically connected to the electrostatic high-resistance meter;

[0018] A linear motor is located on the side of the nylon film away from the composite layer. The linear motor is connected to the nylon film and drives the nylon film to move towards or away from the composite layer.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The present invention provides a vehicle sentry mode system based on non-contact sensing electronic skin, comprising: electronic skin, including a layered structure attached to the surface of the vehicle, the layered structure including a layered insulating layer, a conductive sponge layer, and a composite layer; the electronic skin also includes a nylon film located on the side of the composite layer away from the insulating layer, the nylon film being charged; a wire, one end connected to the conductive sponge layer and the other end grounded, the wire also connected to an electrostatic high-resistance meter; and a data processing unit electrically connected to the electrostatic high-resistance meter. The non-contact TENG structure is formed by the layered insulating layer, conductive sponge layer, and composite layer. The nylon film can be attached to the surface of an obstacle, or other charged obstacles can be used instead of the nylon film. When relative movement occurs between the nylon film and the non-contact TENG structure, electrons will transfer along the wire between the conductive sponge and the ground, forming an induced current. The electrostatic high-resistance meter transmits the current change to the data processing unit in real time. The data processing unit can detect the surrounding environment in real time through the current change, thereby enabling the vehicle to sense the environment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of a vehicle sentinel mode system based on non-contact sensing electronic skin provided by the present invention.

[0023] Figure 2 A flowchart illustrating the workflow of the electronic skin provided by this invention.

[0024] Figure 3 A process flow diagram for the stacked structure provided by the present invention.

[0025] Figure 4 This is a voltage histogram representing the weight ratio of MXene two-dimensional material.

[0026] Figure 5 A bar chart showing the amount of transferred charge as a percentage of the weight of MXene two-dimensional material.

[0027] Figure 6 This is a bar graph showing the current as a percentage of the weight of MXene two-dimensional material.

[0028] Figure 7 This is a comparison diagram of electrical signals at different distances between the human body and the layered structure.

[0029] Figure 8 This is a comparison of electrical signals between a person standing upright and walking at a constant speed.

[0030] Figure 9 This is a schematic diagram of a test device for a car sentry mode system based on non-contact sensing electronic skin provided by the present invention.

[0031] Figure 10 This is a voltage curve representing the distance the nylon film moves.

[0032] Figure 11 This is a graph showing the amount of charge transferred over the distance the nylon film moves.

[0033] Figure 12 This is a current curve showing the distance the nylon film moves.

[0034] Figure 13 This is a voltage waveform diagram for the operating frequency of a linear motor.

[0035] Figure 14 This is a waveform diagram of the transferred charge at the operating frequency of a linear motor.

[0036] Figure 15 This is a bar chart showing the current at different operating frequencies of a linear motor.

[0037] In the diagram: 1. Electronic skin; 2. Layered structure; 3. Insulating layer; 4. Conductive sponge layer; 5. Composite layer; 6. Nylon film; 7. Wire; 8. Electrostatic high resistance meter; 9. Data processing unit; 10. Linear motor. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0042] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0043] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0044] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0045] Reference Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a vehicle sentry mode system based on non-contact sensing electronic skin provided by the present invention. Figure 2 The flowchart of the electronic skin provided by the present invention illustrates a specific embodiment of the automotive sentry mode system 000 based on non-contact sensing electronic skin provided by the present invention, including:

[0046] Electronic skin 1 includes a laminated structure 2 attached to the surface of a car, the laminated structure 2 including a laminated insulating layer 3, a conductive sponge layer 4, and a composite layer 5; electronic skin 1 also includes a nylon film 6 located on the side of the composite layer 5 away from the insulating layer 3, the nylon film 6 being charged;

[0047] One end of the wire 7 is connected to the conductive sponge layer 4, and the other end is grounded. The wire 7 is also connected to an electrostatic high resistance meter 8.

[0048] Data processing unit 9 is electrically connected to electrostatic high resistance meter 8.

[0049] It is understandable that electric charge usually accumulates on the surface of the human body, so the human body can be considered charged. The human body can replace the nylon film 6. Of course, it is not limited to this; other charged objects can also replace the nylon film 6. For non-charged objects, the nylon film 6 can be attached to their surface. When the nylon film 6, the human body, or the charged object moves relative to the car, electrons will transfer along the wire 7 between the conductive sponge 4 and the ground, forming an induced current. The electrostatic high-resistance meter 8 transmits the current change to the data processing unit 9 in real time. The data processing unit 9 can detect the surrounding environment in real time through the current change, thereby realizing the car's environmental perception. Specifically, refer to... Figure 2 (i) Taking nylon film 6 as an example Figure 2 (i) represents the initial state, where the nylon film 6 carries a positive charge, the composite layer 5 carries a negative charge, and the conductive sponge layer 4 accumulates positive charges to balance the static charge; (Refer to...) Figure 2 (ii) When the nylon film 6 moves away from the composite layer 5, electrons begin to flow from the conductive sponge layer 4 to the ground through the wire 7; see reference. Figure 2 (iii), at which point a state of equilibrium is reached again; refer to Figure 2 (iv) When the nylon film 6 moves in the direction close to the composite layer 5, electrons begin to flow from the ground to the conductive sponge layer 4 through the wire 7. During the electron transfer process, the instantaneous current transmitted by the wire 7 is transmitted in real time to the data processing unit 9 by the electrostatic high resistance meter 8. The data processing unit 9 can be a computer, but is not limited to it.

[0050] In some optional implementations, continue to refer to Figure 1 The composite layer 5 is a mixture of MXene two-dimensional material and silicone.

[0051] Understandably, MXene two-dimensional material has a loose, porous, multi-layered structure that is easy to mix with silicone, thereby improving conductivity and thus enhancing the output characteristics of the stacked structure 2.

[0052] In some alternative embodiments, refer to Figure 1 and Figure 3 , Figure 3 This is a process flow diagram of the laminated structure 2 provided by the present invention. The conductive sponge layer 4 includes multiple pores, which are filled with a mixed material.

[0053] Understandably, referring to Figure 3 The method for manufacturing the stacked structure 2 provided in this embodiment includes:

[0054] Provide an insulating layer 3;

[0055] A conductive sponge layer 4 is installed on one side of the insulating layer 3;

[0056] Dissolve silicone in water to form an silicone aqueous solution;

[0057] MXene two-dimensional material was added to an aqueous solution of silicone to form a mixed solution;

[0058] Apply the mixed solution to the side of the conductive sponge 4 away from the insulating layer 3;

[0059] After the water in the mixed solution is dried, layered structure 2 is obtained.

[0060] The conductive sponge layer 4 has multiple pores due to its own characteristics. The pores are filled with a mixture of MXene two-dimensional material and silicone, which makes the composite layer 5 and the conductive sponge layer 4 more firmly connected and increases the durability of the conductive sponge layer 4.

[0061] In some alternative embodiments, refer to Figure 4 , Figure 5 and Figure 6 , Figure 4 This is a voltage histogram representing the weight ratio of MXene two-dimensional material. Figure 5 A bar chart showing the amount of transferred charge as a percentage of the weight of MXene two-dimensional material. Figure 6 The image shows a bar graph of the current as a percentage of the weight of MXene 2D materials, where the weight percentage of MXene 2D materials in the mixed material is 3%.

[0062] Experiments were conducted with the weight percentages of MXene two-dimensional material set at 0%, 1%, 2%, 3%, 4%, and 5%, respectively, as referenced. Figure 4 , Figure 5 and Figure 6 It can be seen that the voltage, current and transferred charge are the largest when the weight ratio of MXene two-dimensional material in the hybrid material is 3%, which proves that the output performance of MXene two-dimensional material is the best at this weight ratio, and it has been significantly improved.

[0063] In some alternative embodiments, refer to Figure 7 and Figure 8 , Figure 7 This is a comparison of electrical signals between the human body and the layered structure at different distances. Figure 8 This is a comparison of electrical signals between a human body standing upright and walking at a constant speed. Figure 7 (i) indicates that the distance between the human body and the layered structure is 200 centimeters. Figure 7 (ii) indicates that the distance between the human body and the layered structure is 150 centimeters. Figure 7 (iii) indicates that the distance between the human body and the layered structure is 100 centimeters. Figure 7(iv) indicates that the distance between the human body and the layered structure is 50 centimeters. Figure 7 and Figure 8 It is known that the layered structure can sense human movement. After the layered structure is attached to the surface of the car, it is more in line with the car's perception of the surrounding situation, which is conducive to enhancing the car's autonomous driving capabilities.

[0064] In some alternative embodiments, reference continues to be made to... Figure 1 The insulating layer 3 is made of polyethylene terephthalate.

[0065] Based on the same inventive concept, the present invention also provides a test device 100 for a car sentry mode system based on non-contact sensing electronic skin, referring to... Figure 1 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 and Figure 15 , Figure 9 This is a schematic diagram of a test device for a car sentry mode system based on non-contact sensing electronic skin provided by the present invention. Figure 10 This is a voltage curve representing the distance the nylon film has moved. Figure 11 This is a graph showing the amount of charge transferred over the distance the nylon film moves. Figure 12 This is a current curve showing the distance the nylon film has traveled. Figure 13 This is a voltage waveform diagram at the operating frequency of a linear motor. Figure 14 This is a waveform diagram of the transferred charge at the operating frequency of a linear motor. Figure 15 The following is a bar graph showing the current at different operating frequencies of a linear motor, illustrating a specific embodiment of the test device 100 for the automotive sentry mode system based on non-contact sensing electronic skin provided by the present invention:

[0066] Electronic skin 1 includes a stacked structure 2, which includes a stacked insulating layer 3, a conductive sponge layer 4, and a composite layer 5; electronic skin 1 also includes a nylon film 6 located on the side of the composite layer 5 away from the insulating layer 3, and the nylon film 6 is charged.

[0067] One end of the wire 7 is connected to the conductive sponge layer 4, and the other end is grounded. The wire 7 is also connected to an electrostatic high resistance meter 8.

[0068] Data processing unit 9 is electrically connected to electrostatic high resistance meter 8;

[0069] A linear motor 10 is located on the side of the nylon film 6 away from the composite layer 5. The linear motor is connected to the nylon film 6 and drives the nylon film 6 to move towards or away from the composite layer 5.

[0070] Understandably, as the nylon film 6 moves away from the composite layer 5, the voltage, current, and transferred charge decrease rapidly with increasing distance traveled by the nylon film 6. This indicates that the laminated structure 2 can sensitively sense signals from obstacles and react quickly. When the obstacle distance exceeds 100 cm, the laminated structure 2 basically does not react, thus avoiding false alarms. (Refer to...) Figures 13 to 15 The operating frequency of the linear motor 10 increased from 0.4Hz to 2Hz. When the nylon film 6 approached the stacked structure 2 at a certain speed, the stacked structure 2 generated a significant electrical signal, indicating that the stacked structure 2 could sensitively detect the presence of the nylon film 6, that is, the stacked structure 2 could sensitively detect the presence of charged objects or human bodies. Simultaneously, the experiment found that as the moving speed of the nylon film 6 increased, the sensing capability of the stacked structure 2 also improved accordingly, making it more suitable for practical application scenarios. Therefore, this experiment provides important support and promotion for the application of the automotive sentry mode system 000 based on non-contact sensing electronic skin.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle sentry mode system based on non-contact sensing electronic skin, characterized in that, include: Electronic skin includes a layered structure attached to the surface of an automobile, the layered structure including a layered insulating layer, a conductive sponge layer, and a composite layer; the electronic skin also includes a nylon film located on the side of the composite layer away from the insulating layer, the nylon film being charged; the composite layer is made of a mixture of MXene two-dimensional material and silicone; the conductive sponge layer includes multiple pores filled with the mixture. A wire is connected at one end to the conductive sponge layer and at the other end to the ground. The wire is also connected to an electrostatic high-resistance meter. The data processing unit is electrically connected to the electrostatic high-resistance meter.

2. The automotive sentry mode system based on non-contact sensing electronic skin according to claim 1, characterized in that, The weight ratio of the MXene two-dimensional material in the hybrid material is 3%.

3. The automotive sentry mode system based on non-contact sensing electronic skin according to claim 1, characterized in that, The insulating layer is made of polyethylene terephthalate.

4. A testing device for a car sentry mode system based on non-contact sensing electronic skin, characterized in that, include: Electronic skin includes a layered structure comprising a layered insulating layer, a conductive sponge layer, and a composite layer; the electronic skin also includes a nylon film located on the side of the composite layer away from the insulating layer, the nylon film being charged; the composite layer is made of a mixture of MXene two-dimensional material and silicone; the conductive sponge layer includes multiple pores filled with the mixture. A wire is connected at one end to the conductive sponge layer and at the other end to the ground. The wire is also connected to an electrostatic high-resistance meter. The data processing unit is electrically connected to the electrostatic high-resistance meter; A linear motor is located on the side of the nylon film away from the composite layer. The linear motor is connected to the nylon film and drives the nylon film to move towards or away from the composite layer.

Images