A test system and test method for intelligent reflective surface

Abstract

This invention discloses a testing system and method for intelligent reflective surfaces. The system includes: a test platform for placing the intelligent reflective surface to be tested; multiple electromagnetic probes, the apertures of which point to a center point, which is the center of the test platform surface; a test bracket on which the electromagnetic probes are mounted; a data processing module for controlling radio frequency signals to be incident on the intelligent reflective surface to be tested from different angles; controlling the reflection parameters of the intelligent reflective surface to be tested; controlling the position of the electromagnetic probes used to receive the reflected radio frequency signals; and extracting and analyzing the electromagnetic and signal quality parameters of the intelligent reflective surface to be tested under different states and multiple angles to achieve a complete characterization of the performance of the intelligent reflective surface. This invention achieves spherical scanning of the intelligent reflective surface by moving the position of the electromagnetic probes, and can be used for testing intelligent reflective surfaces. This invention can be widely applied in the field of microwave communication technology.

Description

Technical Field

[0001] The present invention relates to the technical field of microwave communications, and in particular to a testing system and a testing method for an intelligent reflecting surface. Background Art

[0002] From 1G to 5G, wireless channels are often considered to be uncontrollable. In recent years, with the rapid development of metamaterial technology, a new concept - Reconfigurable Intelligent Surface (RIS) has been proposed. It can actively modify the wireless channel by controlling the reflection characteristics of a large number of passive reflectors on the reflection surface (changing the phase, frequency, amplitude and polarization direction of the incident signal, etc.) using software and other methods, providing new degrees of freedom to further improve the performance of wireless links. Precisely because of the ability of intelligent metasurface technology to regulate the channel, it has become one of the promising technologies in the future 6G.

[0003] The smart reflective surface, with its ability to regulate channels, enables the reflected wave to be emitted to any direction and angle (including the direction of the incident wave) in the free space starting from the smart reflective surface. However, the traditional testing methods and devices can only test the incident reflection at a fixed angle on the same plane. Therefore, the existing testing equipment cannot test the smart reflective surface, and the prior art still lacks a testing system for the smart reflective surface. Summary of the invention

[0004] In order to solve one of the technical problems existing in the prior art to at least a certain extent, an object of the present invention is to provide a testing system and a testing method for a smart reflective surface.

[0005] The technical solution adopted by the present invention is:

[0006] A testing system for a smart reflective surface, comprising:

[0007] A test bench, used to place the smart reflective surface to be tested;

[0008] A plurality of electromagnetic probes (at least two), wherein the apertures of the electromagnetic probes point to a center point, and the center point is the center of the table surface of the test bench;

[0009] A test bracket, wherein the plurality of electromagnetic probes are mounted on the test bracket;

[0010] A signal transmitter, used for transmitting a radio frequency signal to a smart reflective surface to be detected through an electromagnetic probe;

[0011] A signal receiver, used for receiving a radio frequency signal reflected by the intelligent reflective surface to be detected through an electromagnetic probe;

[0012] The reflection parameters of the smart reflective surface control the position of the electromagnetic probe used to receive the reflected RF signal; extract and analyze the electromagnetic and signal (channel) quality parameters of the smart reflective surface to be tested in different states and multiple angles to achieve accurate and complete characterization of the performance of the smart reflective surface.

[0013] Further, the test bracket includes a circular slide rail, a first arched bracket and a second arched bracket;

[0014] The plane where the circular slide rail is located coincides with the plane where the table top of the test bench is located, and the center of the circular slide rail coincides with the center point;

[0015] The first arched bracket is fixed on the circular slide rail, the first arched bracket and the center point are in the same plane, and the plane is perpendicular to the plane where the circular slide rail is located;

[0016] The second arched bracket is installed on the circular slide rail through a moving device, the second arched bracket and the center point are in the same plane, and the plane is perpendicular to the plane where the circular slide rail is located; the data processing module moves the position of the second arched bracket by controlling the moving device;

[0017] The electromagnetic probe is installed on the first arched support and the second arched support.

[0018] Further, the number of the electromagnetic probes installed on the first arched bracket is equal to the number of the electromagnetic probes installed on the second arched bracket, and the electromagnetic probes are installed on the arched bracket at equal distances.

[0019] Further, the test bracket includes a first arc bracket and a second arc bracket;

[0020] The center of the circle where the first arc-shaped bracket is located coincides with the center point, and the plane where the first arc-shaped bracket is located is perpendicular to the plane where the table top of the test bench is located;

[0021] The center of the circle where the second arc-shaped bracket is located coincides with the center point, and the plane where the second arc-shaped bracket is located is perpendicular to the plane where the table top of the test bench is located;

[0022] The position of the first arc-shaped bracket is fixed, and the second arc-shaped bracket can move around the plane where the table top of the test bench is located;

[0023] The curvature of the first arc-shaped bracket and the curvature of the second arc-shaped bracket are both greater than 90°, and the electromagnetic probe is installed on the first arc-shaped bracket and the second arc-shaped bracket.

[0024] Further, the test bracket is a semicircle, the center of the test bracket coincides with the central point, and the test bracket is provided with two electromagnetic probes, and the electromagnetic probes can move on the test bracket;

[0025] The test bench is a two-dimensional test bench, the table top of which can rotate around an axis and can flip around the plane where the test bracket is located, and the rotation angle and flip angle of the table top are controlled by a data processing module; wherein the axis is a straight line passing through the center point and perpendicular to the plane where the test bracket is located.

[0026] Further, the electromagnetic probe is a dual-polarization probe; or,

[0027] All electromagnetic probes are equidistant from the center point.

[0028] Furthermore, the test system further comprises a darkroom, and the test bench and the test bracket are arranged in the darkroom; or,

[0029] The surface of the test bracket is covered with wave absorbing material.

[0030] Another technical solution adopted by the present invention is:

[0031] A testing method for the above-mentioned testing system for the intelligent reflective surface comprises the following steps:

[0032] A1. Place the intelligent reflective surface to be tested at the center point of the test bench;

[0033] A2. Select an electromagnetic probe at a preset angle to transmit a radio frequency signal;

[0034] A3, controlling the reflection parameters of the intelligent reflection surface to be detected, and controlling the position of the electromagnetic probe for receiving the reflected radio frequency signal;

[0035] A4, after the electromagnetic probe receives the radio frequency signal, it records the radio frequency signal and returns to step A2 to update the transmission angle until all preset angles are traversed;

[0036] A5. Extract and analyze the electromagnetic and signal quality parameters of the smart reflective surface to be tested in different states and multiple angles to achieve a complete characterization of the performance of the smart reflective surface.

[0037] Another technical solution adopted by the present invention is:

[0038] A testing method for the above-mentioned testing system for the intelligent reflective surface comprises the following steps:

[0039] B1. Place the intelligent reflective surface to be tested at the center point of the test bench;

[0040] B2. Select an electromagnetic probe at a preset angle to transmit a radio frequency signal;

[0041] B3, controlling the reflection parameters of the intelligent reflection surface to be detected, and controlling the second arched bracket to move to a preset position to receive the reflected radio frequency signal;

[0042] B4, after the electromagnetic probe receives the radio frequency signal, it records the radio frequency signal and returns to step B2 to update the transmission angle until all preset angles are traversed;

[0043] B5. Extract and analyze the electromagnetic and signal quality parameters of the smart reflective surface to be tested in different states and at multiple angles to achieve a complete characterization of the performance of the smart reflective surface;

[0044] If no radio frequency signal is received in step B3, the second arched support is controlled to scan on the circular slide rail to receive the reflected radio frequency signal, and the error of the control channel is calculated according to the position of the received radio frequency signal.

[0045] Another technical solution adopted by the present invention is:

[0046] A testing method for the above-mentioned testing system for the intelligent reflective surface comprises the following steps:

[0047] C1. Place the intelligent reflective surface to be tested at the center point of the test bench;

[0048] C2, select an electromagnetic probe at a preset angle to transmit a radio frequency signal;

[0049] C3, controlling the reflection parameters of the intelligent reflection surface to be detected, and controlling the second arc-shaped bracket to move to a preset position to receive the reflected radio frequency signal;

[0050] C4, after the electromagnetic probe receives the radio frequency signal, it records the radio frequency signal and returns to step C2 to update the transmission angle until all preset angles are traversed;

[0051] C5. Extract and analyze the electromagnetic and signal quality parameters of the smart reflective surface to be tested in different states and multiple angles to achieve a complete characterization of the performance of the smart reflective surface.

[0052] Another technical solution adopted by the present invention is:

[0053] A testing method for the above-mentioned testing system for the intelligent reflective surface comprises the following steps:

[0054] D1. Place the intelligent reflective surface to be tested at the center point of the two-dimensional test bench;

[0055] D2, control the rotation angle and flip angle of the control surface;

[0056] D3, moving the first electromagnetic probe to a preset position and transmitting a radio frequency signal;

[0057] D4, controlling the reflection parameters of the intelligent reflection surface to be detected, and controlling the moving position of the second electromagnetic probe to receive the reflected radio frequency signal;

[0058] D5. After the electromagnetic probe receives the radio frequency signal, it records the radio frequency signal and returns to step D2 to update the rotation angle until all preset angles are traversed;

[0059] D6. Extract and analyze the electromagnetic and signal quality parameters of the smart reflective surface to be tested in different states and at multiple angles to achieve a complete characterization of the performance of the smart reflective surface.

[0060] The beneficial effects of the present invention are as follows: the present invention realizes scanning of the spherical surface of the smart reflective surface by moving the position of the electromagnetic probe, can receive and analyze electromagnetic and signal (channel) quality parameters of the smart reflective surface to be tested in different states and at multiple angles, realizes accurate and complete characterization of the performance of the smart reflective surface, and can be used for testing various smart reflective surfaces / reconfigurable smart reflective surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the embodiments of the present invention or the drawings of related technical solutions in the prior art are introduced below. It should be understood that the drawings introduced below are only for the convenience of clearly describing some embodiments of the technical solutions of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0062] Figure 1 is a schematic diagram of the intelligent reflector controlling the incident signal in an embodiment of the present invention;

[0063] Figure 2 is a structural block diagram of a smart reflective surface testing system in an embodiment of the present invention;

[0064] Figure 3 It is a structural schematic diagram of a first implementation scheme for an intelligent reflective surface testing system in an embodiment of the present invention;

[0065] Figure 4 This is a schematic diagram of the test bracket after it rotates a certain angle along the slide rail in the first implementation scheme;

[0066] Figure 5 It is a structural schematic diagram of a second implementation scheme for the intelligent reflective surface testing system in an embodiment of the present invention;

[0067] Figure 6This is a schematic diagram of the test bracket after it rotates a certain angle around the rotation axis in the second implementation scheme

[0068] Figure 7 It is a structural schematic diagram of a third implementation scheme for the intelligent reflective surface testing system in an embodiment of the present invention;

[0069] Figure 8 This is a schematic diagram of the third implementation scheme after the electromagnetic probe slides a certain angle along the slide rail and the two-dimensional test platform rotates a certain angle around the horizontal and vertical directions. DETAILED DESCRIPTION

[0070] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limitations of the present invention. For the step numbers in the following embodiments, they are only provided for the convenience of explanation, and the order between the steps is not limited in any way, and the execution order of each step in the embodiment can be adaptively adjusted according to the understanding of those skilled in the art.

[0071] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0072] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0073] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0074] The smart reflector consists of a three-layer panel and an intelligent controller. The outer layer includes a large number of metal sheets (element structures) printed on a dielectric substrate, which directly interact with the incident signal; the middle layer uses copper plates or other metals to prevent signal energy leakage; the inner layer is a control circuit board responsible for adjusting the reflection amplitude / phase shift of each element structure, and the intelligent controller of the smart reflector controls its various units to change the phase of the received signal.

[0075] See also Figure 1 , Figure 1 The figure schematically shows the control of the signal transmitted to the smart reflective surface by the smart reflective surface. The smart reflective surface can control the phase and amplitude information of the transmitted signal, thereby changing the channel of the received signal. The modulation signal 1 and the modulation signal 2 are the modulation signals after being controlled by the smart reflective surface, and they can be located on both sides of the normal phase axis of the physical plane or on the same side of the axis. Figure 1 The signal transmitter mentioned in the above mainly refers to a signal generator, a signal source of a network analyzer, and other devices that can send modulated or unmodulated signals; Figure 1 The signal receiver mentioned in the specification is mainly a spectrum (signal) analyzer, a receiving channel of a network analyzer, or other equipment that can receive modulated or unmodulated signals.

[0076] See also Figure 2 , Figure 2 A schematic diagram of the intelligent reflector test system is schematically given, and the system includes: a test bracket, a test bench, an electromagnetic probe, a signal transmitting device, a signal receiving device, and a data processing and analysis module. Among them, the test bench is placed inside the test bracket, and the center of the test bench coincides with the center of the test bracket; the electromagnetic probe is set on the test bracket, and the caliber of the electromagnetic probe points to the center of the test bench. The signal transmitting device is used to transmit modulated or unmodulated radio frequency signals through the electromagnetic probe; the signal receiving device is used to receive modulated or unmodulated radio frequency signals through the electromagnetic probe. The data processing and analysis extracts and analyzes the electromagnetic and signal (channel) quality parameters of the intelligent reflector to be tested in different states and multiple angles, so as to achieve accurate and complete characterization of the performance of the intelligent reflector, and can be used for testing various intelligent reflectors / reconfigurable intelligent reflective surfaces.

[0077] As an optional implementation, the electromagnetic probe uses a dual-polarization probe, which can transmit and receive signals at the same time. Specifically, the transmit and receive state and polarization mode of the electromagnetic probe can be controlled by a switch, so that single transmission and single reception, single transmission and multiple reception, or multiple transmission and multiple reception can be achieved.

[0078] As a further optional implementation, the test bracket and the test table in the test system are arranged in a dark room. In addition, the main surface of the test bracket needs to be covered with an absorbing material to reduce the influence of external mechanisms on the test results.

[0079] As an optional implementation, before testing the smart reflective surface to be tested, it is necessary to calibrate the test system: place the calibration standard plate on the test sample table; test the standard plate by controlling the electromagnetic probe and the signal transmitting and receiving equipment, and store the obtained data in the data processing and analysis part as a reference value for the smart reflective surface to be tested later.

[0080] See also Figure 3 As an optional implementation, the intelligent reflective surface test system includes: a test bracket 1, an electromagnetic probe 2, a test bench 3, a signal transmitting device, a signal receiving device and a data processing and analysis module. The test bracket 1 includes an arch bracket and a circular slide rail. One side of the arch bracket is fixed and the other side is connected with a bearing, and can slide around the circular slide rail. Figure 4 As shown. The fixed axis and the rotating axis on the arch support are cosymmetrically mounted with multiple electromagnetic probes 2, such as Figure 3 As shown, in this embodiment, 10 electromagnetic probes are installed, which are respectively fixed at angles that are equally or unequally spaced from the horizontal plane, for example Figure 3 15°, 30°, 45°, 60°, 75°, etc.; the center of the test bench 3 surface is kept coincident with the center of the bow; the aperture of the electromagnetic probe 2 points to the center of the test bench surface. The signal generator is used to transmit modulated or unmodulated signals through the electromagnetic probe 2; the spectrum analyzer is used to receive modulated or unmodulated signals through the electromagnetic probe; the data processing and analysis module extracts and analyzes the electromagnetic and signal (channel) parameters of the intelligent reflective surface under different states and multiple angles to achieve accurate characterization of the performance of the intelligent reflective surface.

[0081] Based on the above test system, the specific test steps are as follows:

[0082] S101, placing the intelligent reflective surface to be tested on a test bench.

[0083] S102, controlling the signal transmitting device to transmit a modulated or unmodulated signal through an electromagnetic probe.

[0084] S103, controlling the reflection parameters of the intelligent reflection surface to be tested and the position of the electromagnetic probe for receiving signals, so that the spectrum analyzer receives the signal modulated by the intelligent reflection surface to be tested.

[0085] S104, controlling the switch to switch the electromagnetic probes at different angles to perform multiple transmission and reception tests.

[0086] S105, control the rotating shaft to rotate at a specified angle, repeat steps S102-S104, and the data processing and analysis module saves the data.

[0087] S106. The data processing and analysis module extracts and analyzes the electromagnetic and signal (channel) quality parameters of the smart reflective surface to be detected in different states and multiple angles to achieve accurate and complete characterization of the performance of the smart reflective surface.

[0088] As an optional implementation, in the step of moving the electromagnetic probe to receive the radio frequency signal, if the electromagnetic probe cannot accurately receive the signal, a calculation error may occur. The arch bracket is controlled to slide 360° around the circular slide rail to achieve signal scanning, thereby obtaining an accurate signal receiving position, and performing error calculation based on the obtained position.

[0089] See also Figure 5 As another optional implementation, the intelligent reflective surface test system includes: a test bracket 4, an electromagnetic probe 5, a test bench 6, a signal transmitting device, a signal receiving device and a data processing and analysis module. Among them, the test bracket 4 adopts an arc bracket, and the arc of the arc bracket is greater than 90°. The left semicircular bracket of the arc bracket is fixed, and the right semicircular bracket can rotate up to 360° around the central axis. Figure 6 As shown. Several electromagnetic probes 5 are symmetrically installed on the left and right brackets, and are arranged on the arc bracket at equal or unequal intervals. The center of the test table 6 is kept coincident with the center of the arc bracket; the caliber of the electromagnetic probe 5 points to the center of the test table. The signal generator is used to transmit modulated or unmodulated signals through the electromagnetic probe 5; the spectrum analyzer is used to receive modulated or unmodulated signals through the electromagnetic probe; the data processing part extracts and analyzes the electromagnetic and signal (channel) parameters of the intelligent reflective surface to be tested in different states and multiple angles to achieve accurate characterization of the performance of the intelligent reflective surface.

[0090] Based on the above test system, the specific test steps are as follows:

[0091] S201, placing the intelligent reflective surface to be tested on a test bench.

[0092] S202. Control the signal transmitting device to transmit a modulated or unmodulated signal through an electromagnetic probe.

[0093] S203, controlling the reflection parameters of the intelligent reflection surface to be tested and the position of the electromagnetic probe for receiving signals, so that the spectrum analyzer receives the signal modulated by the intelligent reflection surface to be tested.

[0094] S204, controlling the switch to switch the electromagnetic probes at different angles to perform multiple transmission and reception tests.

[0095] S205, control the rotating shaft to rotate at a specified angle, repeat steps S202-S204, and the data processing and analysis module saves the data.

[0096] S206. The data processing and analysis module extracts and analyzes the electromagnetic and signal (channel) quality parameters of the smart reflective surface to be detected in different states and multiple angles to achieve accurate and complete characterization of the performance of the smart reflective surface.

[0097] In this embodiment, since some electromagnetic probes are arranged below the table of the test bench, signals can be emitted through the electromagnetic probes below to test the wave transmission performance of the smart reflective surface. In addition, during the test process, the smart reflective surface to be tested can be stood up for testing, which can effectively simulate different application scenarios for testing and improve the effectiveness and diversity of the test.

[0098] See also Figure 7 As another optional implementation, the intelligent reflective surface test system includes: a test bracket 7, an electromagnetic probe 8, a test table 9, a signal transmitting device, a signal receiving device and a data processing and analysis module. Among them, the test bracket 7 adopts a horizontal arc slide rail, on which a pair of electromagnetic probes are installed, and the electromagnetic probe 8 can slide freely within the range of the arc bracket. The two-dimensional test table 9, the center of the test table surface is kept coincident with the center of the arc slide rail, and the two-dimensional table surface can rotate freely around the central axis in the horizontal and vertical planes, such as Figure 8 The electromagnetic probe 8 has an aperture pointing to the center of the test table; the vector network analyzer is used to transmit or receive signals through the electromagnetic probe 8; the data processing part extracts and analyzes the electromagnetic parameters of the intelligent reflective surface under different states and multiple angles to achieve accurate characterization of the performance of the intelligent reflective surface.

[0099] Based on the above test system, the specific test steps are as follows:

[0100] S301, placing the intelligent reflective surface to be tested on a two-dimensional test bench.

[0101] S302, controlling the vector network analyzer to transmit a modulated or unmodulated signal through an electromagnetic probe.

[0102] S303, controlling the reflection parameters of the intelligent reflection surface to be tested and the position of the electromagnetic probe for receiving signals, so that the spectrum analyzer receives the signal modulated by the intelligent reflection surface to be tested.

[0103] S304, controlling the electromagnetic probe to slide at a certain angle, and performing multiple transmission and reception tests.

[0104] S305, control the two-dimensional turntable to rotate horizontally and vertically by a certain angle, repeat steps S302-S304, and the data processing and analysis module saves the data.

[0105] S306. The data processing and analysis module extracts and analyzes the electromagnetic and signal (channel) quality parameters of the smart reflective surface to be detected in different states and multiple angles to achieve accurate and complete characterization of the performance of the smart reflective surface.

[0106] In summary, this embodiment provides a test system for smart reflective surfaces, in which the test bracket or the test platform can be fixed in free space or rotated along a specified axis, so as to complete the scanning of the spherical surface of the tested space. By analyzing, extracting and analyzing the electromagnetic and signal (channel) quality parameters of the smart reflective surface under different states and multiple angles, the performance of the smart reflective surface can be accurately and completely characterized, and can be used for testing various smart reflective surfaces / reconfigurable smart reflective surfaces.

[0107] In the above description of this specification, the description with reference to the terms "one embodiment / example", "another embodiment / example" or "certain embodiments / examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0108] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

[0109] The above is a specific description of the preferred implementation of the present invention, but the present invention is not limited to the above embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A testing system for a smart reflective surface, characterized in that: include: A test bench, used to place the smart reflective surface to be tested; A plurality of electromagnetic probes, wherein the apertures of the electromagnetic probes point to a center point, and the center point is the center of the table surface of the test bench; A test bracket, wherein the plurality of electromagnetic probes are mounted on the test bracket; A signal transmitter, used for transmitting a radio frequency signal to a smart reflective surface to be detected through an electromagnetic probe; A signal receiver, used for receiving a radio frequency signal reflected by the intelligent reflective surface to be detected through an electromagnetic probe; The data processing module is used to control the radio frequency signal to be emitted into the intelligent reflective surface to be detected from different angles; control the reflection parameters of the intelligent reflective surface to be detected, and control the position of the electromagnetic probe for receiving the reflected radio frequency signal; extract and analyze the electromagnetic and signal quality parameters of the intelligent reflective surface to be detected in different states and multiple angles, so as to achieve a complete characterization of the performance of the intelligent reflective surface; The test bracket comprises a circular slide rail, a first arched bracket and a second arched bracket; The plane where the circular slide rail is located coincides with the plane where the table top of the test bench is located, and the center of the circular slide rail coincides with the center point; The first arched bracket is fixed on the circular slide rail, the first arched bracket and the center point are in the same plane, and the plane is perpendicular to the plane where the circular slide rail is located; The second arched bracket is installed on the circular slide rail through a moving device, the second arched bracket and the center point are in the same plane, and the plane is perpendicular to the plane where the circular slide rail is located; the data processing module moves the position of the second arched bracket by controlling the moving device; The electromagnetic probe is installed on the first arched support and the second arched support.

2. A testing system for a smart reflective surface, characterized in that: include: A test bench, used to place the smart reflective surface to be tested; A plurality of electromagnetic probes, wherein the apertures of the electromagnetic probes point to a center point, and the center point is the center of the table surface of the test bench; A test bracket, wherein the plurality of electromagnetic probes are mounted on the test bracket; A signal transmitter, used for transmitting a radio frequency signal to a smart reflective surface to be detected through an electromagnetic probe; A signal receiver, used for receiving a radio frequency signal reflected by the intelligent reflective surface to be detected through an electromagnetic probe; The data processing module is used to control the radio frequency signal to be emitted into the intelligent reflective surface to be detected from different angles; control the reflection parameters of the intelligent reflective surface to be detected, and control the position of the electromagnetic probe for receiving the reflected radio frequency signal; extract and analyze the electromagnetic and signal quality parameters of the intelligent reflective surface to be detected in different states and multiple angles, so as to achieve a complete characterization of the performance of the intelligent reflective surface; The test bracket comprises a first arc bracket and a second arc bracket; The center of the circle where the first arc-shaped bracket is located coincides with the center point, and the plane where the first arc-shaped bracket is located is perpendicular to the plane where the table top of the test bench is located; The center of the circle where the second arc-shaped bracket is located coincides with the center point, and the plane where the second arc-shaped bracket is located is perpendicular to the plane where the table top of the test bench is located; The first arc-shaped bracket is fixed in position, and the second arc-shaped bracket can rotate around an axis, and the axis passes through the center point and is perpendicular to the test bench surface; The curvature of the first arc-shaped bracket and the curvature of the second arc-shaped bracket are both greater than 90°, and the electromagnetic probe is installed on the first arc-shaped bracket and the second arc-shaped bracket.

3. A testing system for a smart reflective surface, characterized in that: include: A test bench, used to place the smart reflective surface to be tested; A plurality of electromagnetic probes, wherein the apertures of the electromagnetic probes point to a center point, and the center point is the center of the table surface of the test bench; A test bracket, wherein the plurality of electromagnetic probes are mounted on the test bracket; A signal transmitter, used for transmitting a radio frequency signal to a smart reflective surface to be detected through an electromagnetic probe; A signal receiver, used for receiving a radio frequency signal reflected by the intelligent reflective surface to be detected through an electromagnetic probe; The data processing module is used to control the radio frequency signal to be emitted into the intelligent reflective surface to be detected from different angles; control the reflection parameters of the intelligent reflective surface to be detected, and control the position of the electromagnetic probe for receiving the reflected radio frequency signal; extract and analyze the electromagnetic and signal quality parameters of the intelligent reflective surface to be detected in different states and multiple angles, so as to achieve a complete characterization of the performance of the intelligent reflective surface; The test bracket is a semicircle, the center of the test bracket coincides with the center point, and the test bracket is provided with two electromagnetic probes, and the electromagnetic probes can move on the test bracket; The test bench is a two-dimensional test bench, and the tabletop of the two-dimensional test bench can rotate in the horizontal direction and the vertical direction around an axis passing through the center point.

4. A testing system for a smart reflective surface according to any one of claims 1 to 3, characterized in that: The electromagnetic probe is a dual-polarization probe; or, All electromagnetic probes are equidistant from the center point.

5. A testing system for a smart reflective surface according to any one of claims 1 to 3, characterized in that: The test system further comprises a darkroom, wherein the test bench and the test bracket are arranged in the darkroom; or, The surface of the test bracket is covered with wave absorbing material.

6. A testing method for a testing system for a smart reflective surface applied to any one of claims 1 to 3, characterized in that: The following steps are involved: A1. Place the intelligent reflective surface to be tested at the center point of the test bench; A2. Select an electromagnetic probe at a preset angle to transmit a radio frequency signal; A3, controlling the reflection parameters of the intelligent reflection surface to be detected, and controlling the position of the electromagnetic probe for receiving the reflected radio frequency signal; A4, after the electromagnetic probe receives the radio frequency signal, it records the radio frequency signal and returns to step A2 to update the transmission angle until all preset angles are traversed; A5. Extract and analyze the electromagnetic and signal quality parameters of the smart reflective surface to be tested in different states and multiple angles to achieve a complete characterization of the performance of the smart reflective surface.

7. A testing method for a testing system for a smart reflective surface according to claim 1, characterized in that: The following steps are involved: B1. Place the intelligent reflective surface to be tested at the center point of the test bench; B2. Select an electromagnetic probe at a preset angle to transmit a radio frequency signal; B3, controlling the reflection parameters of the intelligent reflection surface to be detected, and controlling the second arched bracket to move to a preset position to receive the reflected radio frequency signal; B4, after the electromagnetic probe receives the radio frequency signal, it records the radio frequency signal and returns to step B2 to update the transmission angle until all preset angles are traversed; B5. Extract and analyze the electromagnetic and signal quality parameters of the intelligent reflective surface to be tested in different states and at multiple angles. Achieve complete characterization of smart reflective surface performance; If no radio frequency signal is received in step B3, the second arched support is controlled to scan on the circular slide rail to receive the reflected radio frequency signal, and the error of the control channel is calculated according to the position of the received radio frequency signal.

8. A testing method for a testing system for a smart reflective surface according to claim 2, characterized in that: The following steps are involved: C1. Place the intelligent reflective surface to be tested at the center point of the test bench; C2, select an electromagnetic probe at a preset angle to transmit a radio frequency signal; C3, controlling the reflection parameters of the intelligent reflection surface to be detected, and controlling the second arc-shaped bracket to move to a preset position to receive the reflected radio frequency signal; C4, after the electromagnetic probe receives the radio frequency signal, it records the radio frequency signal and returns to step C2 to update the transmission angle until all preset angles are traversed; C5. Extract and analyze the electromagnetic and signal quality parameters of the smart reflective surface to be tested in different states and multiple angles to achieve a complete characterization of the performance of the smart reflective surface.

9. A testing method for a testing system for a smart reflective surface according to claim 3, characterized in that: The following steps are involved: D1. Place the intelligent reflective surface to be tested at the center point of the two-dimensional test bench; D2, control the rotation angle and flip angle of the control surface; D3, moving the first electromagnetic probe to a preset position and transmitting a radio frequency signal; D4, controlling the reflection parameters of the intelligent reflection surface to be detected, and controlling the moving position of the second electromagnetic probe to receive the reflected radio frequency signal; D5. After the electromagnetic probe receives the radio frequency signal, it records the radio frequency signal and returns to step D2 to update the rotation angle until all preset angles are traversed; D6. Extract and analyze the electromagnetic and signal quality parameters of the smart reflective surface to be tested in different states and at multiple angles to achieve a complete characterization of the performance of the smart reflective surface.

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