Rotatable antenna-assisted wireless communication system, method, device, and medium

Abstract

Disclosed in the present invention are a rotatable antenna-assisted wireless communication system, a method, a device, and a medium. The system comprises a radio frequency transceiver system, a rotatable antenna system, and a target positioning system. The target positioning system comprises an image acquisition unit and a target positioning unit. The image acquisition unit is mounted on a motor of the rotatable antenna system and is used for acquiring an environmental image. The target positioning unit is used for extracting coordinate information of a target user on the basis of the obtained environmental image. The rotatable antenna system comprises a rotatable antenna unit and a main control unit. The rotatable antenna unit is used for signal transmission and reception. The main control unit is used for controlling a rotation angle of the rotatable antenna unit on the basis of the coordinate information extracted by the target positioning unit, so as to implement radio frequency signal transmission and reception of the radio frequency transceiver system. In the present invention, the direction of the rotatable antenna unit is dynamically adjusted using location information of the target user to ensure that the beam direction of the antenna remains aligned with the target user, thereby improving communication quality and signal strength.

Description

A rotatable antenna-assisted wireless communication system, method, device, and medium Technical Field

[0001] This invention relates to the field of wireless communication, and more particularly to a wireless communication system, method, device, and medium assisted by a rotatable antenna. Background Technology

[0002] In traditional wireless communication systems, increasing the number of antennas and base stations is typically used to increase array gain and spatial multiplexing gain, thereby improving signal quality at the user end. However, increasing the number of antennas requires more space, higher energy consumption, and higher hardware costs. Since the position and orientation of antennas are fixed, increasing the number of antennas exacerbates mutual coupling and interference problems between them, and fails to fully utilize spatial freedom. To address this issue, several novel antenna technologies have been proposed, mainly including the following types:

[0003] Fluid antennas / movable antennas: Composed of software-controllable fluid, conductive, or dielectric structures, they can reconfigure characteristics such as gain, radiation pattern, and operating frequency by changing their shape and position. While flexible, changing their position requires significant space. Mechanically driven fluid antennas adjust their position through physical displacement; the complex mechanical system increases device size and hinders miniaturization. Furthermore, mechanically driven responses are slow, making them unsuitable for high-speed applications. Non-mechanically driven structures simplify design, but their adjustability is limited, and frequency and bandwidth may be restricted, leading to higher maintenance costs and design complexity.

[0004] Six-dimensional movable antenna: An antenna that allows for flexible adjustment of its three-dimensional position and three-dimensional rotation. Although a six-dimensional movable antenna can achieve full range coverage and make full use of spatial degrees of freedom, it presents more complex angle / position optimization problems, and its control structure is more complex and costly to manufacture than that of movable antennas / fluid antennas.

[0005] In summary, all existing antenna technologies have their own problems, and a more complete solution is still needed. Summary of the Invention

[0006] In order to at least partially solve one of the technical problems existing in the prior art, the present invention aims to provide a wireless communication system, method, device and medium assisted by a rotatable antenna.

[0007] The first technical solution adopted in this invention is:

[0008] A rotatable antenna-assisted wireless communication system includes a radio frequency transceiver system, a rotatable antenna system, and a target positioning system;

[0009] The target positioning system includes an image acquisition unit and a target positioning unit; the image acquisition unit is mounted on the motor of the rotatable antenna system and is used to acquire environmental images; the target positioning unit is used to extract the coordinate information of the target user based on the acquired environmental images.

[0010] The rotatable antenna system includes rotatable antenna units and a main control unit; the rotatable antenna units are used for signal transmission and reception, and there are N units, where N is a positive integer; the main control unit is used to control the rotation angle of the rotatable antenna units according to the coordinate information extracted by the target positioning unit, so as to realize the radio frequency signal transmission and reception of the radio frequency transceiver system.

[0011] The rotatable antenna unit transmits radio frequency (RF) signals to the RF transceiver system via the main control unit.

[0012] Furthermore, the rotatable antenna unit includes two motors, a motor control module, and a directional antenna unit. The directional antenna unit is responsible for transmitting and receiving radio frequency signals. The motors are connected to and drive the directional antenna unit to rotate horizontally or vertically. The motor control module is used to control the movement of the motors.

[0013] Furthermore, the motor control module includes a motor drive circuit and a control unit. The motor drive circuit is connected to and drives the motor, and the control unit is connected to the main control unit and the motor drive circuit. The control unit controls the motor drive circuit to drive the motor to perform specific rotation actions according to the signals from the main control unit.

[0014] Furthermore, the target localization unit includes two convolutional neural networks. The first convolutional neural network is used to extract features from the image, detect the target position and category in the image, and thus extract target label position information. The second convolutional neural network is used to extract the target feature vector obtained by the first convolutional neural network, match the detected target with the existing trajectory, and perform data association in target tracking.

[0015] The second technical solution adopted in this invention is:

[0016] A motor control method, applied to the rotatable antenna-assisted wireless communication system as described above, includes the following steps:

[0017] Rotate the antenna to help start the communication system;

[0018] The main control unit sends a reset signal to the motor control module;

[0019] The motor drives the image acquisition unit to rotate 360° periodically, and the target positioning unit determines whether the target user exists in the environment;

[0020] If the determination is negative, meaning there is no target user, the motor continues to rotate periodically;

[0021] If the determination is yes, that is, there is a target user, the motor stops rotating periodically, and the motor drives the antenna to rotate to the angle where the target is located. The rotation angle is dynamically adjusted according to the movement of the target user.

[0022] The third technical solution adopted in this invention is:

[0023] A master control method, applied to the rotatable antenna-assisted wireless communication system as described above, includes the following steps:

[0024] The main control unit sends a reset signal to the motor control module and activates the image acquisition unit;

[0025] The main control unit outputs pulse signals to the motor control module to control the image acquisition unit to rotate 360° at regular intervals, and the target positioning unit determines whether there is a target user in the environment.

[0026] If the determination is negative, meaning there is no target user, the main control unit periodically outputs pulse signals to the motor control module to control the image acquisition unit to continue rotating.

[0027] If the determination is yes, that is, there is a target user, the target positioning unit outputs the location coordinate information of the target user to the main control unit;

[0028] The main control unit obtains the corresponding azimuth angle based on the target user's location coordinates. and pitch angle θ;

[0029] The main control unit outputs the corresponding angle information to the motor control module, which then rotates the antenna clockwise to the user's corresponding azimuth angle. And the pitch angle θ, and detect the signal strength value.

[0030] Furthermore, the azimuth angle The pitch angle θ is obtained by the following formula:

[0031] Where (x1, y1) and (x2, y2) represent the coordinates of the upper left and lower right corners of the target bounding box output by the target localization unit, respectively; x max ,y max These represent the length and width of the image output by the image acquisition module; 135° and 60° represent the horizontal and vertical visible range of the image acquisition module, respectively.

[0032] The fourth technical solution adopted in this invention is:

[0033] A target tracking method, applied to a rotatable antenna-assisted wireless communication system as described above, includes the following steps:

[0034] The target label information is input into the pre-trained first convolutional neural network to obtain the target's current position information;

[0035] The output of the first convolutional neural network is input into the second convolutional neural network to obtain the appearance features of the target;

[0036] The state prediction network is used to predict the target's position in the next frame;

[0037] Based on the predicted location and appearance features, the detection results in the current frame are matched with the target;

[0038] The target's trajectory is updated based on the matching results, generating the target's motion trajectory in consecutive frames, thereby obtaining accurate location information of the moving target.

[0039] The fifth technical solution adopted in this invention is:

[0040] An electronic device includes a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set, or an instruction set, the at least one instruction, the at least one program, the code set, or the instruction set being loaded and executed by the processor to implement the method described above.

[0041] The sixth technical solution adopted in this invention is:

[0042] A computer-readable storage medium storing at least one instruction, at least one program, a code set, or an instruction set, wherein the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by a processor to implement the method described above.

[0043] The seventh technical solution adopted in this invention is:

[0044] A computer program product or computer program includes computer instructions stored in a computer-readable storage medium. A processor of a computer device can read the computer instructions from the computer-readable storage medium and execute the computer instructions to cause the computer device to perform the method described above.

[0045] The beneficial effects of this invention are: by utilizing the location information of the target user, this invention dynamically adjusts the direction of the rotatable antenna element to ensure that the antenna beam direction is always aligned with the target user, thereby improving communication quality and signal strength.

[0046] The control method of the present invention has broad versatility and high adaptability, and can be flexibly adjusted and combined according to different equipment, different environments and different user needs to achieve the best control effect.

[0047] This invention utilizes the directivity of a directional antenna, which is mounted on a motor and combined with a motor control module to form a rotatable antenna unit. The target positioning system obtains the location information of the target user, and the control algorithm ensures that the rotatable antenna unit is always aligned with the target user, thus ensuring that the received signal is in the optimal state. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following description is provided with accompanying drawings of the relevant technical solutions in the embodiments of the present invention or the prior art. It should be understood that the accompanying drawings described below are only for the purpose of clearly illustrating 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 effort.

[0049] Figure 1 is a schematic diagram of the rotating antenna system in an embodiment of the present invention.

[0050] Figure 2 is a schematic diagram of the target positioning system in an embodiment of the present invention.

[0051] Figure 3 is a schematic diagram of the relationship between the modules in an embodiment of the present invention.

[0052] Figure 4 is a flowchart of the operation of the rotatable antenna-assisted communication system in an embodiment of the present invention.

[0053] Figure 5 is a graph showing the relationship between received power and target position for a moving target under different antenna systems in an embodiment of the present invention.

[0054] Figure 6 is a schematic diagram of the signal processing device in an embodiment of the present invention. Detailed Implementation

[0055] The embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The step numbers in the following embodiments are set only for ease of explanation, and there is no limitation on the order between the steps. The execution order of each step in the embodiments can be adaptively adjusted according to the understanding of those skilled in the art.

[0056] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limiting this invention.

[0057] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0058] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0059] To illustrate the technological advancements of the method of this invention, the rotatable antenna-assisted communication system proposed in this invention was tested in a real-world environment and compared with a fixed antenna system. A fixed antenna system refers to a system where the antenna position and orientation are fixed. In this test, the number of rotatable antennas was one, and the number of target users was one.

[0060] In traditional wireless communication systems, increasing the number of antennas and base stations typically enhances array gain and spatial multiplexing gain to improve signal quality at the user end. However, increasing the number of antennas requires more space, higher energy consumption, and higher hardware costs. Since the position and orientation of antennas are fixed, increasing the number of antennas exacerbates mutual coupling and interference problems, and fails to fully utilize spatial freedom. To address this issue, several novel antenna technologies have been proposed, primarily including the following types:

[0061] Fluid antennas / movable antennas: Composed of software-controllable fluid, conductive, or dielectric structures, they can reconfigure characteristics such as gain, radiation pattern, and operating frequency by changing their shape and position. While flexible, changing their position requires significant space. Mechanically driven fluid antennas adjust their position through physical displacement; the complex mechanical system increases device size and hinders miniaturization. Furthermore, mechanically driven responses are slow, making them unsuitable for high-speed applications. Non-mechanically driven structures simplify design, but their adjustability is limited, and frequency and bandwidth may be restricted, leading to higher maintenance costs and design complexity.

[0062] Six-dimensional movable antenna: An antenna that allows for flexible adjustment of its three-dimensional position and three-dimensional rotation. Although a six-dimensional movable antenna can achieve full range coverage and make full use of spatial degrees of freedom, it presents more complex angle / position optimization problems, and its control structure is more complex and costly to manufacture than that of movable antennas / fluid antennas.

[0063] Rotatable antennas: These antennas can flexibly adjust the three-dimensional direction of their beam through mechanical or electrical rotation while maintaining their position. Due to their fixed location, rotatable antennas can significantly reduce the required cost and space while improving communication performance.

[0064] Based on this, the present invention proposes a wireless communication system assisted by a rotatable antenna. Through a target positioning system and a rotatable antenna system, the direction of the antenna can be dynamically adjusted according to the location of the target, ensuring that the beam direction of the antenna is always aligned with the target user, thereby improving communication quality and signal strength.

[0065] Please refer to Figure 1, a schematic diagram of the rotatable antenna system of the present invention. The rotatable antenna system 10 includes N rotatable antenna elements 105 and a main control unit 101, where N is a positive integer. Each rotatable antenna element includes a motor 102, a motor control module 103, and a directional antenna element 104. The directional antenna element 104 is responsible for transmitting and receiving radio frequency signals. The motor 102 is connected to the directional antenna element 104 and drives the directional antenna element 104 to rotate. The motor control module 103 receives the rotation angle signal and controls the motor 102 to perform horizontal / vertical movement. The main control unit is responsible for determining the rotation angle of the rotatable antenna elements to realize the radio frequency signal transmission and reception operation of the radio frequency transceiver system 20.

[0066] Referring to Figure 2, a schematic diagram of the target positioning system of the present invention is shown. The target positioning system 30 further includes an image acquisition unit 301 and a target positioning unit 302. The image acquisition unit 301 is mounted on the rotatable antenna system 10 and uses a high-resolution industrial camera to capture images of the surrounding environment, obtaining clear and accurate environmental images. The target positioning unit 302 is responsible for processing the acquired environmental images in real time and extracting the coordinate information of the target user. Furthermore, the target positioning unit includes two convolutional neural networks. The first convolutional neural network is used to extract image features, detect the target position and category in the image, and thus extract target label position information. The second convolutional neural network is used to extract the target feature vector obtained using the first convolutional neural network, match the detected target with existing trajectories, and perform data association during target tracking.

[0067] Referring to Figure 3, this is a schematic diagram of the relationship between the modules of the present invention. The main control unit 101 is simultaneously connected to the rotating antenna unit 105, the target positioning unit 302, and the radio frequency transceiver system 20. The main control unit 101 determines the rotation angle of the rotating antenna unit 105, the target positioning unit 302 outputs the target's position information to the main control unit 101, and the working process of the radio frequency transceiver system 20 runs on the main control unit 101.

[0068] Referring to Figure 4, the workflow of the rotatable antenna-assisted communication system includes the following steps:

[0069] Step S101: The system is powered on and begins operation;

[0070] In step S102, the main control unit sends a reset signal to the motor control module;

[0071] Step S103: Input the target label information into the pre-trained first convolutional neural network;

[0072] The target label information refers to the category of the target label. By setting the category of the target label, the target to be identified can be determined. The structure of the first convolutional neural network is unrestricted; common architectures such as CSPDarknet and ResNet can be used. Several convolutional neural networks can be set up to extract multi-scale features of the target, and then the extracted features are fused to integrate feature information from different signals. The fusion strategy is unrestricted; attention mechanisms, concatenation, joint learning, etc., can be introduced to obtain the target's localization information.

[0073] In one embodiment, the first convolutional neural network adopts the CSPDarknet53 architecture, extracting multi-scale features through the C2f module and the Bottleneck Block. An attention mechanism and a path aggregation network are introduced for feature fusion, utilizing bottom-up and top-down paths to enhance the interaction between features at different levels. The fused feature vector is then passed sequentially through a fully connected layer and an activation function to obtain the target's location information. The choice of activation function is unrestricted and can include ReLU (Rectified Linear Unit), etc.

[0074] In step S104, the main control unit outputs a pulse signal to the motor control module to control the image acquisition unit to rotate 360°;

[0075] The image acquisition unit has no limitations on its field of view or resolution. Image acquisition modules with a large coverage area and high resolution can be used. The larger the field of view of the image acquisition unit, the faster the system's response speed when a target appears.

[0076] In one embodiment, an image acquisition module with a field of view of 135° horizontally, 60° vertically, and a resolution of 1920×1080 is used. The field of view of the image acquisition module affects the angle of rotation of the motor control antenna.

[0077] Step S105: The target positioning unit determines whether a target user exists in the environment;

[0078] In step S106, if the determination is negative, i.e., there is no target user, the main control unit periodically outputs pulse signals to the motor control module to control the image acquisition unit to rotate periodically.

[0079] The motor rotation cycle is not limited and can be set according to actual conditions.

[0080] In one embodiment, a hardware timer is initialized in the main control unit, with its period set to 100,000 milliseconds. Furthermore, an activation function is written to send control signals to the servo motor to adjust its angle. The timer is started so that it triggers the activation function every 100 seconds. In this way, the servo motor receives a control signal every 100 seconds, thus achieving periodic rotation.

[0081] Step S107: If the determination is yes, that is, there is a target user, the target positioning unit outputs the location coordinate information of the target user to the main control unit.

[0082] In step S108, the main control unit processes the target user's position coordinate information to obtain the corresponding azimuth angle. and pitch angle θ;

[0083] The azimuth angle pointed to by the rotatable antenna element is determined by the target's coordinate information, the field of view of the image acquisition module, and the size of the image output by the image acquisition module.

[0084] In one embodiment, the target bounding box output by the target localization unit is (x1, x2, y1, y2), where (x1, y1) and (x2, y2) represent the coordinates of the upper left and lower right corners of the bounding box, respectively. max ,y max Let 135° and 60° be the length and width of the image output by the image acquisition module, respectively, and 135° and 60° be the horizontal and vertical visible ranges of the image acquisition module, respectively. Then, the azimuth angle of the rotatable antenna unit is... The pitch angle θ and the pitch angle θ are respectively:

[0085] Based on the target bounding box information output by the image localization module, the steps of channel estimation and target localization can be simplified, and the target's angle information can be obtained quickly and accurately, thereby obtaining the rotation angle of the rotatable antenna.

[0086] In step S109, the main control unit outputs the corresponding angle information to the motor control module, rotating the antenna clockwise to the user's corresponding azimuth angle. And the pitch angle θ, and detect the signal strength value.

[0087] Step S110: Input the output of the first convolutional neural network into the second convolutional neural network to obtain the appearance features of the target;

[0088] The structure of the second convolutional neural network is unrestricted; it can use common architectures such as ResNet and MobileNet. It can be selected to extract the appearance features of the target by setting up several convolutional neural networks.

[0089] In one embodiment, the second convolutional neural network adopts a simplified convolutional neural network structure based on ResNet. It generates a 128-dimensional feature vector for target matching through convolutional layers, residual blocks, global average pooling layers, and fully connected layers to characterize the appearance features of the target.

[0090] Step S111: Predict the target's position in the next frame using the state prediction method;

[0091] The state prediction method is unrestricted and can use prediction methods such as Kalman filtering and particle filtering to predict the target's position in the next frame.

[0092] In one embodiment, the target's position in the next frame is predicted using a Kalman filter based on the target's historical position and velocity information.

[0093] Step S112: Match the detection results in the current frame with the target based on the predicted location and appearance features;

[0094] The matching method and order are unrestricted, and methods such as the Hungarian algorithm, cascade matching, and dynamic template matching can be used to achieve more accurate matching.

[0095] In one embodiment, IOU (Intersection over Union) matching is first used to measure the similarity between two bounding boxes to construct a cost matrix. Then, the Hungarian algorithm is used to optimize the matching of the cost matrix. The Hungarian algorithm can find the optimal matching scheme to ensure a one-to-one match between each detection box and the prediction box. Then, the unmatched detection boxes and prediction boxes are cascaded for matching. Finally, feature similarity matching is used to match detection boxes and prediction boxes with high feature similarity.

[0096] Step S113: Determine whether the target has moved;

[0097] Step S114: If the target does not move, the antenna rotation angle remains unchanged, always pointing at the user;

[0098] Step S115: If the target moves, update the target's trajectory according to the matching result to obtain the accurate location information of the moving target, and output the location information to the main control unit.

[0099] Step S116: The main control unit processes the updated target user's position coordinate information to obtain the corresponding azimuth angle. And the pitch angle θ.

[0100] In step S117, the main control unit outputs the corresponding angle information to the motor control module, rotating the antenna to the user's corresponding azimuth angle. And the pitch angle θ, and detect the signal strength value.

[0101] Referring to Figure 5, which shows the relationship between received power and target position for a moving target under different antenna systems according to embodiments of this application, the following conclusions can be drawn from Figure 5: Compared with a fixed antenna system, the user received signal power obtained in the rotatable antenna-assisted communication system proposed in this application is significantly more stable, and the signal quality is significantly higher than that of a fixed antenna system. This verifies that the rotatable antenna-assisted communication system proposed in this application can effectively improve the quality and stability of communication.

[0102] Furthermore, this application also provides a signal processing apparatus, comprising:

[0103] One or more processors;

[0104] At least one memory;

[0105] At least two interfaces; and

[0106] One or more computer programs;

[0107] The one or more computer programs are stored in the memory and configured to be executed by the one or more processors. The electronic device can be any smart terminal, including tablet computers, personal digital assistants (PDAs), in-vehicle computers, etc.

[0108] Referring to Figure 6, the hardware structure of an electronic device according to an embodiment of this application is illustrated. The electronic device includes:

[0109] The processor 901 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this application.

[0110] The memory 902 can be implemented in the form of ROM (Read Only Memory), static storage device, dynamic storage device, or RAM (Random Access Memory). The memory 902 can store the operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 902 and called and executed by the processor 901 using the intelligent reflective surface design method of the embodiments of this application.

[0111] The input / output interface 903 is used to implement information input and output;

[0112] Communication interface 904 is used to enable communication and interaction between this device and other devices. Communication can be achieved via wired means (e.g., USB, Ethernet cable) or wireless means (e.g., mobile network, Wi-Fi, Bluetooth).

[0113] Bus 905 transmits information between various components of the device (e.g., processor 901, memory 902, input / output interface 903, and communication interface 904);

[0114] The processor 901, memory 902, input / output interface 903, and communication interface 904 are connected to each other within the device via bus 905.

[0115] This application embodiment also provides a storage medium that stores a computer program, which, when executed by a processor, implements the above-described intelligent reflective surface design method.

[0116] Memory, as a non-transitory storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0117] The control method of the present invention has broad versatility and high adaptability, and can be flexibly adjusted and combined according to different equipment, different environments and different user needs to achieve the best control effect.

[0118] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0119] The above embodiments are merely illustrative of the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made based on the essence of the content of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A wireless communication system assisted by a rotatable antenna, characterized in that, This includes a radio frequency transceiver system, a rotatable antenna system, and a target positioning system; The target positioning system includes an image acquisition unit and a target positioning unit; the image acquisition unit is mounted on the motor of the rotatable antenna system and is used to acquire environmental images; the target positioning unit is used to extract the coordinate information of the target user based on the acquired environmental images. The rotatable antenna system includes a rotatable antenna unit and a main control unit; the rotatable antenna unit is used for signal transmission and reception; the main control unit is used to control the rotation angle of the rotatable antenna unit according to the coordinate information extracted by the target positioning unit, so as to realize the radio frequency signal transmission and reception of the radio frequency transceiver system.

2. The rotatable antenna-assisted wireless communication system according to claim 1, characterized in that, The rotatable antenna unit includes two motors, a motor control module, and a directional antenna unit. The directional antenna unit is responsible for transmitting and receiving radio frequency signals. The motors are connected to and drive the directional antenna unit to rotate horizontally or vertically. The motor control module is used to control the movement of the motors.

3. The rotatable antenna-assisted wireless communication system according to claim 2, characterized in that, The motor control module includes a motor drive circuit and a control unit. The motor drive circuit is connected to and drives the motor. The control unit is connected to the main control unit and the motor drive circuit, and controls the motor drive circuit to drive the motor to perform specific rotation actions according to the signals from the main control unit.

4. The wireless communication system assisted by a rotatable antenna according to claim 1, characterized in that, The target localization unit includes two convolutional neural networks. The first convolutional neural network is used to extract features from the image, detect the target position and category in the image, and thus extract target label position information. The second convolutional neural network is used to extract the target feature vector obtained by the first convolutional neural network, match the detected target with the existing trajectory, and perform data association in target tracking.

5. A motor control method, applied to the rotatable antenna-assisted wireless communication system as described in claim 2, characterized in that, Includes the following steps: Rotate the antenna to help start the communication system; The main control unit sends a reset signal to the motor control module; The motor drives the image acquisition unit to rotate periodically, and the target positioning unit determines whether the target user exists in the environment; If the determination is negative, meaning there is no target user, the motor continues to rotate periodically; If the determination is yes, that is, there is a target user, the motor stops rotating periodically, and the motor drives the antenna to rotate to the angle where the target is located. The rotation angle is dynamically adjusted according to the movement of the target user.

6. A master control method, applied to the rotatable antenna-assisted wireless communication system as described in claim 2, characterized in that, Includes the following steps: The main control unit sends a reset signal to the motor control module and activates the image acquisition unit; The main control unit outputs pulse signals to the motor control module to control the image acquisition unit to rotate at regular intervals, and the target positioning unit determines whether a target user exists in the environment. If the determination is negative, meaning there is no target user, the main control unit periodically outputs pulse signals to the motor control module to control the image acquisition unit to continue rotating. If the determination is yes, that is, there is a target user, the target positioning unit outputs the location coordinate information of the target user to the main control unit; The main control unit obtains the corresponding azimuth angle based on the target user's location coordinates. and pitch angle θ; The main control unit outputs the corresponding angle information to the motor control module, which then rotates the antenna clockwise to the user's corresponding azimuth angle. And the pitch angle θ, and detect the signal strength value.

7. The master control method according to claim 6, characterized in that, The azimuth angle The pitch angle θ is obtained by the following formula: Where (x1, y1) and (x2, y2) represent the coordinates of the upper left and lower right corners of the target bounding box output by the target localization unit, respectively; x max ,y max These represent the length and width of the image output by the image acquisition module; 135° and 60° represent the horizontal and vertical visible range of the image acquisition module, respectively.

8. A target tracking method, applied to the rotatable antenna-assisted wireless communication system as described in claim 4, characterized in that, Includes the following steps: The target label information is input into the pre-trained first convolutional neural network to obtain the target's current position information; The output of the first convolutional neural network is input into the second convolutional neural network to obtain the appearance features of the target; The state prediction network is used to predict the target's position in the next frame; Based on the predicted location and appearance features, the detection results in the current frame are matched with the target; The target's trajectory is updated based on the matching results, generating the target's motion trajectory in consecutive frames, thereby obtaining accurate location information of the moving target.

9. An electronic device, characterized in that, The electronic device includes a processor and a memory, the memory storing at least one instruction, at least one program, a code set, or an instruction set, the at least one instruction, the at least one program, the code set, or the instruction set being loaded and executed by the processor to implement the method as described in any one of claims 5 to 8.

10. A computer-readable storage medium, characterized in that, The storage medium stores at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by a processor to implement the method as described in any one of claims 5 to 8.

Images