Device and method for fixing RIS phased-array antenna of unmanned aerial vehicle

Abstract

The invention relates to an unmanned aerial vehicle RIS phased-array antenna fixing device and method, and relates to the technical field of unmanned aerial vehicle application. The device comprises a support hoop, a hoop fixing screw, a telescopic rod, a connecting plate and a telescopic rotating support. The top of the telescopic rotating support is used for installing the RIS phased-array antenna, the bottom of the telescopic rotating support is connected to the connecting plate, the periphery of the connecting plate is connected to the tops of the four telescopic rods, the bottoms of the four telescopic rods are connected with the four support hoops, and the four support hoops are connected to four supporting legs of the unmanned aerial vehicle through hoop fixing screws. The device and the method thereof can solve the problems of tedious installation, infirm fixation and the like in the prior art, and realize air-to-ground signal transmission of the RIS phased-array antenna.

Description

Technical Field

[0001] The present application relates to the technical field of unmanned aerial vehicle applications, and more specifically, to a device and method for fixing an unmanned aerial vehicle RIS phased array antenna. Background Art

[0002] Intelligent metasurface (RIS) is a basic innovative technology involving metamaterials, electromagnetic information, interface electromagnetics, electromagnetic computing, cybernetics, wireless communications and other multidisciplinary contents. In recent years, a large number of theoretical innovations and prototype testing work have demonstrated that intelligent metasurface technology has advantages in low cost, low power consumption and easy deployment, and has many potential opportunities and broad application prospects in both 5G and future 6G networks.

[0003] Digital phased array antennas can be divided into traditional radar active phased arrays and electromagnetic surface phased array antennas based on interface electromagnetics. In traditional phased array antennas, each antenna unit or subarray has its own transceiver components and phase shifters, which are difficult to design in high frequency bands, high cost, complex structure, and large size. Electromagnetic surface phased array antennas based on interface electromagnetics only require the feed source to have a transmitting channel and a receiving channel, which greatly reduces the weight and volume. It is no longer limited to ground installation, but can be fixed on towers, walls, and even drones.

[0004] At present, when fixing the RIS phased array antenna on the drone, the staff only simply fixes the equipment to the drone body. Different staff have different ways of fixing the equipment. This will cause angle deviation and substandard fixation when fixing the RIS phased array antenna on the drone, resulting in equipment jitter during flight, low signal transmission efficiency and other faults. Summary of the invention

[0005] The purpose of the present application is to provide a device and method for fixing an unmanned aerial vehicle RIS phased array antenna, so as to solve the problems of cumbersome installation and loose fixation in the prior art, and realize air-to-ground signal transmission of the RIS phased array antenna.

[0006] In order to achieve the above-mentioned object, in a first aspect, the present invention provides a device for fixing a RIS phased array antenna of a UAV, the device comprising a bracket clamp, a clamp fixing screw, a telescopic rod, a connecting plate and a telescopic rotating bracket;

[0007] The top of the telescopic rotating bracket is used to install the RIS phased array antenna, the bottom of the telescopic rotating bracket is connected to the connecting plate, the four sides of the connecting plate are connected to the top of the four telescopic rods, the bottom of the four telescopic rods are connected to four bracket clamps, and the four bracket clamps are connected to the four legs of the drone through the clamp fixing screws.

[0008] In an optional embodiment, the telescopic rod includes two support rods and a telescopic section connected between the two support rods.

[0009] In an optional embodiment, the connecting plate is connected to the telescopic rotating bracket via a fixing screw.

[0010] In an optional embodiment, the telescopic rotating bracket includes a telescopic fixing plate, a rotating disk, a connecting rod, upper and lower movable arms and an antenna fixing plate connected in sequence from bottom to top; the telescopic fixing plate is connected to the connecting plate, and the antenna fixing plate is used to install the RIS phased array antenna.

[0011] In an optional embodiment, there are two connecting rods, and the two connecting rods are connected to opposite sides of the upper and lower movable arms.

[0012] In an optional embodiment, the rotating disk and the upper and lower movable arms are located on the same axis.

[0013] In a second aspect, the present invention provides a method for fixing a UAV RIS phased array antenna, the method adopts the device of the aforementioned embodiment, and the method comprises:

[0014] S1: Connect the four bracket clamps of the device to the four legs of the drone through the clamp fixing screws;

[0015] S2: Adjust the lengths of the four telescopic rods so that the connecting plate reaches the preset angle position;

[0016] S3: Install the RIS phased array antenna onto the connecting plate through the telescopic rotating bracket.

[0017] In an optional embodiment, the telescopic rotating bracket includes a telescopic fixing plate, a rotating disk, a connecting rod, upper and lower movable arms and an antenna fixing plate connected in sequence from bottom to top; S3 includes:

[0018] The rotating disk and the upper and lower movable arms are adjusted through the cloud platform to calibrate the azimuth and downtilt angles of the RIS phased array antenna.

[0019] In an optional embodiment, S3 includes:

[0020] Align the screw holes of the telescopic fixing plate and the connecting plate and connect them via the fixing screws.

[0021] In an optional embodiment, S3 includes:

[0022] Align the antenna fixing plate with the screw holes of the RIS phased array antenna and connect them using screws.

[0023] The embodiment of the present invention designs a fixed installation device for the RIS phased array antenna on the drone, and the inclination angle of the RIS phased array antenna on the drone can be adjusted by setting four telescopic rods, and the height and azimuth of the RIS phased array antenna can be adjusted by telescopic rotating brackets, thereby solving the problems of the prior art of cumbersome installation procedures, loose fixation, inability to adjust, and inability to adjust the antenna direction. The device can realize the fixation of the RIS phased array device on the drone, so that the RIS phased array antenna can achieve an air-to-ground signal transmission effect.

[0024] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the components from the bracket clamp to the connecting plate in the device for fixing the UAV RIS phased array antenna provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of the structure of a telescopic rotating bracket provided in an embodiment of the present application;

[0028] Figure 3 A flowchart of a method for fixing a UAV RIS phased array antenna provided in an embodiment of the present application.

[0029] Icon: 1- bracket clamp; 2- clamp fixing screw; 3- support rod; 4- telescopic section; 5- connecting plate; 6- fixing screw; 7- telescopic fixing plate; 8- rotating plate; 9- connecting rod; 10- upper and lower movable arms; 11- antenna fixing plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does 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 cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] DJI FC30 drone is widely used in some simple cargo transportation. The fuselage covers a simple cargo rack, which can be placed on the cargo rack when transporting large cargo. At present, when fixing the RIS phased array device on the DJI FC30 drone, the staff generally simply bundles the RIS phased array device with the drone body, or performs a relatively simple fixation. In this way, there will be equipment jitter during the flight, the signal quality cannot be guaranteed, and the antenna direction cannot be adjusted, which affects the data transmission quality and even poses certain safety hazards.

[0034] In view of this, a RIS phased array communication equipment fixing device suitable for the DJI FC30 UAV is needed.

[0035] Please refer to Figure 1 and Figure 2 ,This embodiment provides a device for fixing a UAV RIS phased array antenna (hereinafter referred to as: device), which can be applied not only to the DJI FC30 UAV, but also to other UAVs with four legs.

[0036] The device includes a bracket clamp 1, a clamp fixing screw 2, a telescopic rod, a connecting plate 5 and a telescopic rotating bracket; the top of the telescopic rotating bracket is used to install the RIS phased array antenna, the bottom of the telescopic rotating bracket is connected to the connecting plate 5, the four sides of the connecting plate 5 are connected to the tops of four telescopic rods, and the bottoms of the four telescopic rods are connected with four bracket clamps 1, wherein the telescopic rod includes two support rods 3 and a telescopic section 4 connected between the two support rods 3, and the length of the telescopic section 4 can be adjusted by adjusting the length of the telescopic section 4. The four bracket clamps 1 are connected to the four legs of the drone through the clamp fixing screws 2. In this way, the four telescopic rods form a cross-shaped support structure for the RIS phased array antenna, making the support more stable.

[0037] Among them, the telescopic rotating bracket includes a telescopic fixed plate 7, a rotating disk 8, a connecting rod 9, an upper and lower movable arm 10 and an antenna fixing plate 11 connected in sequence from bottom to top, wherein the rotating disk 8 and the upper and lower movable arms 10 are located on the same axis. The rotating disk 8 has built-in remote control electronic components, and the rotating disk 8 can be remotely controlled to rotate through the cloud platform to adjust the azimuth angle of the antenna. The upper and lower movable arms 10 have built-in remote control electronic components, which can be remotely controlled through the cloud platform to make the upper and lower movable arms 10 telescope up and down to adjust the downtilt angle of the antenna. The telescopic fixed plate 7 is connected to the connecting plate 5 through a fixing screw 6, and the antenna fixing plate 11 is used to install the RIS phased array antenna. Among them, the number of connecting rods 9 is two, and the two connecting rods 9 are connected to the opposite sides of the upper and lower movable arms 10, so that the rotating disk 8 supports the upper and lower movable arms 10 stably. The RIS phased array antenna is installed on the drone in a suspended manner, without contacting the fuselage of the drone, which can better help the RIS phased array antenna to dissipate heat.

[0038] Please refer to Figure 3 This embodiment also provides a method for fixing a UAV RIS phased array antenna (hereinafter referred to as the method), the method adopts the device of the aforementioned embodiment, and the method includes:

[0039] S1: Connect the four bracket clamps 1 of the device to the four legs of the drone through the clamp fixing screws 2.

[0040] S2: Adjust the lengths of the four telescopic rods so that the connecting plate 5 reaches a preset angle position.

[0041] S3: Install the RIS phased array antenna onto the connecting plate 5 through the telescopic rotating bracket.

[0042] Specifically, first, align the telescopic fixing plate 7 with the screw hole of the connecting plate 5 and connect them through the fixing screw 6. Then, align the antenna fixing plate 11 with the screw hole of the RIS phased array antenna and connect them through the screw. Finally, adjust the rotating disk 8 and the upper and lower movable arms 10 through the cloud platform to calibrate the azimuth and downtilt angles of the RIS phased array antenna.

[0043] The device and method for fixing the UAV RIS phased array antenna provided in this embodiment have the following beneficial effects:

[0044] By designing a fixed installation device for RIS phased array antenna on a drone, the tilt angle of the RIS phased array antenna on the drone can be adjusted by setting four telescopic rods, and the height and azimuth of the RIS phased array antenna can be adjusted by telescopic rotating brackets, solving the problems of cumbersome installation procedures, loose fixation, inability to adjust, and inability to adjust the antenna direction in the existing technology. This device can fix the RIS phased array device on the drone, so that the RIS phased array antenna can achieve an air-to-ground signal transmission effect.

[0045] It should be noted that, in the absence of conflict, the features in the embodiments of this application may be combined with each other.

[0046] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for fixing an unmanned aerial vehicle RIS phased array antenna, characterized in that: The device comprises a support hoop (1), a hoop fixing screw (2), a telescopic rod, a connecting plate (5) and a telescopic rotating support; The top of the telescopic rotating bracket is used to install the RIS phased array antenna, the bottom of the telescopic rotating bracket is connected to the connecting plate (5), the four sides of the connecting plate (5) are connected to the tops of the four telescopic rods, the bottoms of the four telescopic rods are connected to four bracket clamps (1), and the four bracket clamps (1) are connected to the four legs of the drone via the clamp fixing screws (2).

2. The device for fixing the RIS phased array antenna of an unmanned aerial vehicle according to claim 1, characterized in that: The telescopic rod comprises two support rods (3) and a telescopic section (4) connected between the two support rods (3).

3. The device for fixing the RIS phased array antenna of an unmanned aerial vehicle according to claim 1, characterized in that: The connecting plate (5) is connected to the telescopic rotating bracket via a fixing screw (6).

4. The device for fixing the RIS phased array antenna of an unmanned aerial vehicle according to claim 1, characterized in that: The telescopic rotating bracket comprises a telescopic fixing plate (7), a rotating disk (8), a connecting rod (9), upper and lower movable arms (10) and an antenna fixing plate (11) which are connected in sequence from bottom to top; the telescopic fixing plate (7) is connected to the connecting plate (5), and the antenna fixing plate (11) is used to install a RIS phased array antenna.

5. The device for fixing the RIS phased array antenna of an unmanned aerial vehicle according to claim 4, characterized in that: The number of the connecting rods (9) is two, and the two connecting rods (9) are connected to opposite sides of the upper and lower movable arms (10).

6. The device for fixing the RIS phased array antenna of an unmanned aerial vehicle according to claim 4, characterized in that: The rotating disk (8) and the upper and lower movable arms (10) are located on the same axis.

7. A method for fixing an unmanned aerial vehicle RIS phased array antenna, characterized in that: The method adopts the device of claim 1, and the method comprises: S1: Connect the four bracket clamps (1) of the device to the four legs of the drone via the clamp fixing screws (2); S2: adjusting the lengths of the four telescopic rods so that the connecting plate (5) reaches a preset angle position; S3: Install the RIS phased array antenna onto the connecting plate (5) via the telescopic rotating bracket.

8. The method for fixing the UAV RIS phased array antenna according to claim 7, characterized in that: The telescopic rotating bracket comprises a telescopic fixing plate (7), a rotating disk (8), a connecting rod (9), upper and lower movable arms (10) and an antenna fixing plate (11) which are connected in sequence from bottom to top; S3 comprises: The rotating disk (8) and the upper and lower movable arms (10) are adjusted via a cloud platform to calibrate the azimuth angle and downtilt angle of the RIS phased array antenna.

9. The method for fixing the UAV RIS phased array antenna according to claim 8, characterized in that: S3 includes: The telescopic fixing plate (7) is aligned with the screw hole of the connecting plate (5) and connected via a fixing screw rod (6).

10. The method for fixing the UAV RIS phased array antenna according to claim 8, characterized in that: S3 includes: The antenna fixing plate (11) is aligned with the screw hole of the RIS phased array antenna and connected via a screw rod.

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