A demonstration device for an intelligent metasurface for wireless communication

Abstract

The utility model relates to wireless communication teaching demonstration technical field discloses a demonstration device for intelligent hypersurface for wireless communication, include: the model of sheltering building body and the model of being sheltered building body are arranged in rows, visible light source sets up in the front side of a plurality of signal sheltering building body, intelligent hypersurface simulation part includes electric platform and reflector, electric platform sets up between the model of sheltering building body and the model of being sheltered building body, reflector sets up on electric platform, photoelectric detector sets up on the model of being sheltered building body far from visible light source, the device can demonstrate the working principle and working effect of intelligent hypersurface in small area, the propagation path of light beam and signal blind filling effect can be observed directly by human eye, need not professional measuring equipment, only need simple operation to complete signal blind filling to the specified position, easy to operate, can be used as demonstration prop in the application process of propagating and popularizing intelligent hypersurface and teaching aid in the learning process of relevant professional students.

Description

Technical Field

[0001] This utility model relates to the field of wireless communication teaching demonstration technology, and in particular to a demonstration device for a smart metasurface for wireless communication. Background Technology

[0002] With the rapid development of 5G / 6G communication networks, high-frequency signals such as millimeter waves and terahertz bands face problems such as severe propagation attenuation and limited coverage. Traditional solutions involve densely deploying high-power base stations, which leads to soaring operating costs and still struggles to achieve full coverage. Utilizing intelligent metasurface systems, by dynamically adjusting the direction of electromagnetic wave reflection, signal coverage can be significantly enhanced, base station dependence reduced, and energy conservation, emission reduction, and low-cost deployment of communication networks facilitated. However, because the electromagnetic waves used in wireless communication are invisible to the human eye, most people lack an intuitive understanding of the role of intelligent metasurfaces, resulting in significant resistance to their widespread application or poor effectiveness in educational demonstrations.

[0003] Currently, common methods for demonstrating the functions of intelligent metasurfaces include: computer simulation, virtual reality (animation), and physical electromagnetic metasurface systems. Computer simulation uses specialized software to simulate the radiation patterns of different electromagnetic metasurface configurations. Based on the simulation, the direction and angle of strongest electromagnetic wave reflection are determined, thus obtaining the relationship between the metasurface configuration and the reflection direction. Studying this simulation requires specialized knowledge and is difficult for the average person, especially teenagers, to understand. Virtual reality (animation) uses virtual reality software to demonstrate the working principle of intelligent metasurfaces in animated form, making it easier for people to understand. However, this method does not allow for hands-on operation to achieve different blind spot effects by changing the angle of the intelligent metasurface. Physical electromagnetic metasurface systems utilize real electromagnetic metasurface systems to achieve directional reflection of electromagnetic waves. However, this requires a large space, specialized measuring equipment, and a long period of functional debugging. Furthermore, electromagnetic waves are invisible to the human eye, making it impossible to establish an intuitive understanding.

[0004] In view of this, in order to make it easier for people to see the effects of smart metasurfaces intuitively and enhance their understanding of the working mechanism of smart metasurfaces, it is urgent to design a demonstration device for smart metasurfaces for wireless communication. Utility Model Content

[0005] This invention proposes a demonstration device for a smart metasurface for wireless communication to address the shortcomings of the prior art. This demonstration device can demonstrate the working principle and effect of a smart metasurface in a small area through simple operation without the need for specialized equipment. It can be used as a demonstration prop in the process of promoting the application of smart metasurfaces and as a teaching tool in the learning process of students in related majors.

[0006] The technical solution of this utility model is: a demonstration device for a smart metasurface for wireless communication, comprising: The building model includes a blocking building model and a blocked building model, which are arranged in a row. Visible light sources are positioned on the front side of the multiple obstructing building models, and the visible light sources are used to emit visible light beams in multiple directions; The intelligent metasurface simulation unit includes an electric platform and a reflector. The electric platform is positioned between the obstructing building model and the obstructed building model, and the reflector is mounted on the electric platform. The reflector is used to reflect visible light beams, and the electric platform is used to adjust the reflection direction of the reflector. A photodetector is placed on a model of a building that is blocked from visible light sources to receive visible light beams in order to determine whether signal enhancement is being achieved.

[0007] In at least one embodiment of this utility model, all of the plurality of photodetectors are signal-connected to an analog data display screen, which is used to display analog signal strength data.

[0008] In at least one embodiment of the present invention, the electric platform is signal-connected to a controller, which is used to control the rotation angle of the electric platform.

[0009] In at least one embodiment of the present invention, the visible light source includes a light bulb or a laser.

[0010] In at least one embodiment of this utility model, both the obstructing building model and the obstructed building model are configured in multiple ways, and the various obstructing building models and the obstructed building models have different shapes.

[0011] In at least one embodiment of this utility model, the reflector is a plane mirror or a concave mirror.

[0012] In at least one embodiment of this utility model, the photodetector is provided in multiple forms, and the multiple photodetectors are all embedded in the building model that is being obscured.

[0013] In at least one embodiment of the present invention, the reflector is detachably connected to an electric platform.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention employs multiple building models, a visible light source for emitting visible beams in multiple directions, an intelligent metasurface simulation unit consisting of an electric platform and a reflector, and photodetectors mounted on the building models. During use, the positions of the multiple building models are adjusted according to demonstration needs, creating both obscuring and obscured models. The visible light source is then placed in front of the obscuring model, and a photodetector is installed on the obscured model. The electric platform is positioned on the sides of both models. During the demonstration, the visible light source is activated, and the reflection direction of the reflector is adjusted by the electric platform so that the photodetector can receive the visible beam, thereby determining whether signal enhancement is being achieved. Compared to existing technologies, this demonstration device requires no specialized equipment, is easy to operate, and can demonstrate the working principle and effects of intelligent metasurfaces within a small area. During the demonstration, the propagation path of the beam and the signal blinding effect can be directly observed by the human eye. It can serve as a demonstration prop for promoting the application of intelligent metasurfaces and as a teaching tool for students in related fields. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Explanation of reference numerals in the attached figures: 1. Building model; 11. Obstructing building model; 12. Obstructed building model; 2. Visible light source; 3. Intelligent metasurface simulation unit; 31. Electric platform; 32. Reflector; 4. Photodetector; 5. Analog data display screen; 6. Controller. Detailed Implementation

[0016] The accompanying drawings in this invention are not strictly drawn to scale, and the specific dimensions and quantity of each structure can be determined according to actual needs. The drawings described in this invention are merely structural schematic diagrams.

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "inner," "outer," "upper," "lower," "far," "near," "front," and "rear" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] Combination Figure 1 As shown, a demonstration device for a smart metasurface for wireless communication includes: Multiple building models 1, including a blocking building model 11 and a blocked building model 12, are arranged in a row; specifically, the number of blocking building models 11 and blocked building models 12 can be adjusted according to requirements.

[0020] Visible light source 2 is set in front of multiple obstructing building models 11. Visible light source 2 is used to emit visible light beams in multiple directions to simulate the electromagnetic waves generated by a wireless signal base station or transmitter in all directions. Some light beams will be blocked by the obstructing building models 11 and will not be able to reach the obstructed building 12, forming a signal blind zone, thus simulating the formation of a signal blind zone due to the obstruction of electromagnetic waves.

[0021] The intelligent metasurface simulation unit 3 includes an electric platform 31 and a reflector 32. The electric platform 31 is positioned between the obstructing building model 11 and the obstructed building model 12, and the reflector 32 is mounted on the electric platform 31. The reflector 32 is used to reflect visible light beams. The electric platform 31 is used to adjust the reflection direction of the reflector 32. By adjusting the angle of the reflector 32, the visible light beam can be reflected behind the building model 1, thereby achieving the function of signal blindness compensation. This is used to simulate an intelligent metasurface on another building. The intelligent metasurface changes the reflection direction of the electromagnetic signal beam by adjusting the on / off state of the metasurface unit to achieve signal blindness compensation. In this invention, the angle change of the reflector 32 is used to change the position of the reflected beam to achieve signal blindness compensation.

[0022] Multiple photodetectors 4 are set on the obstructed building model 12, which is far away from the visible light source 2. The multiple photodetectors 4 are used to receive visible light beams. The signal values ​​obtained by the multiple photodetectors 4 when using the electric platform 31 and the reflector 32 are used as initial values. After using the electric platform 31 and the reflector 32 to simulate signal compensation, the signal values ​​obtained by the photodetectors 4 are compared with the initial signals to determine whether signal enhancement is achieved.

[0023] As an alternative embodiment, multiple photodetectors 4 are all connected to an analog data display screen 5. The analog data display screen 5 is used to display analog signal strength data, and the signal blinding function of the smart metasurface is intuitively demonstrated by the difference in data before and after reflection.

[0024] As an alternative embodiment, the electric platform 31 is signal-connected to the controller 6, which is used to control the rotation angle of the electric platform 31. By controlling the angle of the electric platform 31 through the controller 6, the light beam is reflected to any direction to achieve signal blind spot compensation at any desired location. Specifically, the electric platform 31 includes a servo motor and a mounting bracket. The mounting bracket is set on the servo motor's rotating shaft, and the reflector 32 is detachably set on the mounting bracket.

[0025] As an alternative embodiment, the visible light source 2 includes a light bulb or a laser; specifically, the visible light source 2 is adaptively selected according to the ambient brightness.

[0026] As an alternative embodiment, both the obscuring building model 11 and the obscured building model 12 can be configured in multiple ways, with each type of obscuring building model 11 and obscured building model 12 having a different shape; specifically, different building models can be changed according to the actual demonstration scenario of the model.

[0027] As an alternative embodiment, the reflector 32 is a plane mirror or a concave mirror, which makes the reflection effect obvious by reflecting or focusing the reflection.

[0028] As an alternative embodiment, multiple photodetectors 4 are provided, and multiple photodetectors 4 are embedded on the obscured building model 12. Multiple photodetectors 4 are used to quantify the signal enhancement effect.

[0029] As an alternative embodiment, the reflector 32 can be detachably connected to the electric platform 31 to facilitate cleaning or replacement of the reflector 32; specifically, the position of the electric platform 31 in the system can be flexibly adjusted as needed.

[0030] The working principle and usage method of this embodiment: This invention provides a demonstration device for a smart metasurface for wireless communication. In use, this device selects building models 1 of different shapes according to demonstration requirements and adjusts their positions so that multiple building models 1 have an obscuring building model 11 and an obscuring building model 12. A visible light source 2 is then placed in front of the obscuring building model 11, and a bulb or laser is selected as needed. Multiple photodetectors 4 are installed on the obscuring building model 12. An electric platform 31 is placed on the sides of the obscuring and obscuring building models 11 and 12. A plane mirror or concave mirror is mounted on the electric platform 31. During the demonstration, the bulb or laser is turned on, and the reflection direction of the reflector 32 is adjusted via the electric platform 31 so that the photodetectors 4 can receive the visible light beam. Finally, the data changes are observed through a simulated data display screen 5 to determine whether signal enhancement is being achieved. This invention can demonstrate the working principle and effect of intelligent metasurfaces within a small area. The visible light used allows the human eye to directly observe the beam propagation path and signal blinding effect. No professional measuring equipment is required; signal blinding at a designated location can be completed with simple operation. It is easy to learn and operate, and can be used as a demonstration prop in promoting the application of intelligent metasurfaces, as well as a teaching tool for students in related majors. It improves hands-on skills, enhances comprehension, allows for the evaluation of learning outcomes, and broadens the scope of knowledge.

[0031] The above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features within the technical scope disclosed in this utility model. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions implemented by this utility model, and should all be covered within the protection scope of this utility model.

Claims

1. A demonstration device for a smart metasurface for wireless communication, characterized in that, include: The building model (1) includes a blocking building model (11) and a blocked building model (12), wherein the blocking building model (11) and the blocked building model (12) are arranged in a row; A visible light source (2) is set on the front side of the multiple obstructing building models (11), and the visible light source (2) is used to emit visible light beams in multiple directions; The intelligent metasurface simulation unit (3) includes an electric platform (31) and a reflector (32). The electric platform (31) is disposed between the obstructing building model (11) and the obstructed building model (12). The reflector (32) is disposed on the electric platform (31). The reflector (32) is used to reflect visible light beams. The electric platform (31) is used to adjust the reflection direction of the reflector (32). A photodetector (4) is placed on the obscured building model (12) away from the visible light source (2) to receive the visible light beam.

2. The demonstration device for a smart metasurface for wireless communication as described in claim 1, characterized in that, Each of the photodetectors (4) is connected to an analog data display screen (5), which is used to display analog signal strength data.

3. The demonstration device for a smart metasurface for wireless communication as described in claim 1, characterized in that, The electric platform (31) is connected to a controller (6), which is used to control the rotation angle of the electric platform (31).

4. The demonstration device for a smart metasurface for wireless communication as described in claim 1, characterized in that, The visible light source (2) includes a light bulb or a laser.

5. The demonstration device for a smart metasurface for wireless communication as described in claim 1, characterized in that, Both the obstructing building model (11) and the obstructed building model (12) are configured in various ways, and the various obstructing building models (11) and obstructed building models (12) have different shapes.

6. The demonstration device for a smart metasurface for wireless communication as described in claim 1, characterized in that, The reflector (32) is a plane mirror or a concave mirror.

7. The demonstration device for a smart metasurface for wireless communication as described in claim 1, characterized in that, The photodetector (4) is provided in multiple forms, and the multiple photodetectors (4) are all embedded in the building model (12) that is being obscured.

8. The demonstration device for a smart metasurface for wireless communication as described in claim 1, characterized in that, The reflector (32) is detachably connected to the electric platform (31).

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