Satellite communication multi-beam antenna switching system

Abstract

The invention belongs to the technical field of satellite communication, and particularly discloses a satellite communication multi-beam antenna switching system which comprises a mounting base, an antenna body is mounted over the mounting base, mounting frames are detachably connected to the side walls of the two sides of the mounting base, and fixing plates are mounted on the side walls of the two sides of the middle of each mounting frame. The side wall of the mounting plate is provided with a plurality of feed source assemblies which are arranged in a crossed manner, each feed source assembly comprises a feed source plate which is in sliding connection with the mounting plate through a plurality of sliding blocks, the bottom surface of each feed source plate is fixedly connected with a limiting plate through a connecting piece, and one side of each limiting plate is provided with a threaded block. According to the invention, the connecting piece fixedly connected with the side wall of the threaded block in threaded connection with the screw rod moves, so that the plurality of groups of feed source plates move back and forth along the side wall of the mounting plate, one feed source group can be conveniently, quickly and accurately aligned with a target satellite, and the receiving efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of satellite communications, and in particular to a satellite communication multi-beam antenna switching system. Background Art

[0002] Satellite communication multi-beam technology refers to the setting of multiple beams on the satellite. Each beam can cover different ground areas or users, thereby realizing multi-point simultaneous communication. There are several ways to switch multi-beam antennas, such as return frequency switching, transmission antenna switching and phased array antenna beam switching. The appropriate multi-beam antenna switching can be selected according to actual needs.

[0003] Rebate-based frequency switching refers to the use of the return frequency switching method of multi-beam satellite mobile communications, which realizes seamless switching between beams through the return frequency switching module, configuration query module, etc., to ensure that the return link of the mobile terminal is not interrupted when the beam is switched; transmission antenna switching refers to the dynamic switching of the transmitting antenna in wireless communication, and the selection of the optimal antenna for data transmission, thereby improving signal quality and system capacity. This method is also applicable to satellite communications, and the best beam can be selected for data transmission; phased array antenna beam switching refers to the construction of a phased array antenna beam switching system, receiving beam angle information, solving the amplitude and phase information of the chip channel, and selecting the corresponding daisy chain module for transmission to achieve rapid switching of beams.

[0004] The position of the traditional transmission antenna switching feed plate is fixed, which makes it impossible for the antenna system to dynamically adjust the beam direction, resulting in limited flexibility when switching beams. It may not be possible to quickly and accurately aim at the target satellite or communication terminal, and the receiving efficiency will be reduced, affecting the communication quality and the rate of information data transmission. In view of this, we propose a satellite communication multi-beam antenna switching system. Summary of the invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a satellite communication multi-beam antenna switching system.

[0006] In the first aspect, the present application provides a satellite communication multi-beam antenna switching system, including a mounting seat, an antenna body is installed directly above the mounting seat, both side walls of the mounting seat are detachably connected to a mounting frame through a plurality of groups of connecting structures, fixing plates are installed on both side walls of the middle part of the mounting frame, the same mounting plate is fixedly connected between the two fixing plates, a driving structure is provided at the inner bottom end of the mounting frame, the driving structure includes a screw rod rotatably connected to the inner wall of the mounting frame, a plurality of groups of cross-arranged feed assemblies are installed on the side walls of the mounting plate, the feed assemblies include a feed plate slidably connected to the mounting plate through a plurality of sliders, the bottom surface of the feed plate is fixedly connected to a limiting plate through a connecting piece, and a threaded block is installed on one side of the limiting plate.

[0007] According to the technical solution provided in the embodiment of the present application, a plurality of slots are provided on the side walls of the mounting seat, and the connection structure includes a mounting block fixedly connected to the side wall of the mounting frame, and sliding rods are symmetrically installed on the surface of the mounting block.

[0008] According to the technical solution provided in the embodiment of the present application, the two sliding rods are slidably connected to the same sliding block, a spring is sandwiched between the sliding block and the mounting block, a side wall of the sliding block away from the spring is fixedly connected to an insertion block, the insertion block can be inserted into the slot, and a limiting block is provided at one end of the two sliding rods away from the mounting block.

[0009] According to the technical solution provided in the embodiment of the present application, the driving structure also includes a synchronous wheel sleeved and fixed on the outer wall of the screw rod, and the two synchronous wheels are connected by a synchronous belt transmission, and one end of one of the screw rods is coaxially connected to a servo motor.

[0010] According to the technical solution provided in the embodiment of the present application, a plurality of the sliders are fixedly connected to the feed plate, and both side walls of the mounting plate are provided with sliding grooves for accommodating the sliding of the sliders.

[0011] According to the technical solution provided in the embodiment of the present application, the top end of the connecting member is fixed to the bottom surface of the feed plate by screws, and the end of the connecting member away from the feed plate is fixedly connected to the limiting plate.

[0012] According to the technical solution provided in the embodiment of the present application, a threaded block is installed on one side wall of the limiting plate, and a plurality of the threaded blocks are threadedly connected to the screw rod.

[0013] According to the technical solution provided in the embodiment of the present application, a signal processing and beam control module is also included:

[0014] Signal processing unit: performs pre-processing operations such as filtering, amplification, and frequency conversion on the received satellite signals to improve signal quality, enhance signal strength, and convert high-frequency signals into intermediate-frequency signals suitable for subsequent processing. Its filter adopts a digital filter, which can be flexibly configured according to different frequency bands and communication protocols, and the filtering accuracy reaches ±0.5dB; the amplifier gain can be automatically adjusted in the range of 20dB to 60dB to adapt to different signal strengths; the frequency conversion accuracy of the inverter is ±0.1MHz.

[0015] Beam control unit: Calculates and generates beam switching control signals based on communication requirements and satellite position information, controls the drive structure to accurately adjust the position of the feed assembly, and implements beam switching and pointing control. The unit has a built-in high-precision positioning system with a positioning accuracy of ±0.1°. It can obtain satellite azimuth and elevation information in real time, and uses intelligent algorithms to calculate the optimal feed assembly position in combination with communication protocols and system preset parameters to ensure that the beam accurately points to the target satellite, with a beam switching time of less than 100 milliseconds.

[0016] According to the technical solution provided in the embodiment of the present application, a fault detection and diagnosis module is also included:

[0017] Real-time monitoring unit: Utilize sensors installed at key locations of the system, such as temperature sensors (accuracy of ±0.5°C), current sensors (accuracy of ±0.1A), voltage sensors (accuracy of ±0.5V), vibration sensors (accuracy of ±0.1g), etc., to collect system operating parameters in real time, including antenna body temperature, drive structure motor current and voltage, mounting base vibration, etc. The sampling frequency is 100Hz to 1000Hz, ensuring timely and accurate acquisition of system operating status information.

[0018] Fault diagnosis unit: Based on big data analysis and artificial intelligence algorithms, the collected operating parameters are analyzed and diagnosed. A fault feature database is established, which contains parameter feature patterns of various common faults (such as antenna element damage, drive structure failure, feed component abnormality, etc.), and a neural network algorithm is used for pattern recognition and fault classification. The diagnostic accuracy rate reaches more than 95%. When a fault is detected, the fault location can be quickly and accurately located, and detailed fault information and possible solutions are provided, and the diagnostic results are output through the system display or remote communication interface.

[0019] According to the technical solution provided in the embodiment of the present application, a remote communication and monitoring module is also included:

[0020] Communication unit: Integrate 4G / 5G communication module or satellite communication module to realize data transmission with the remote monitoring center. Support multiple communication protocols, such as TCP / IP, UDP, etc., to ensure stable and reliable data transmission. The data transmission rate can reach 10Mbps to 100Mbps in 4G network and 100Mbps to 1Gbps in 5G network. The satellite communication module can be adaptively adjusted according to different satellite frequency bands and orbital parameters to ensure smooth communication with the monitoring center in different environments.

[0021] Monitoring unit: Receives control instructions from the remote monitoring center, such as beam switching instructions, system parameter adjustment instructions, etc., and feeds back system operation status information and fault alarm information to the monitoring center in real time. The monitoring center can use this module to remotely configure and manage the system, such as adjusting signal processing parameters, optimizing beam control strategies, updating fault diagnosis algorithms, etc., to achieve centralized monitoring and unified management of multiple satellite communication multi-beam antenna switching systems distributed in different geographical locations, and improve system operation and maintenance efficiency.

[0022] To summarize, the present technical solution specifically discloses a satellite communication multi-beam antenna switching system, which includes a mounting seat, an antenna body, a connecting structure, and a feed assembly, etc.; the lead screw is driven to rotate by a servo motor, so that the connecting piece fixedly connected to the side wall of the threaded block threadedly connected to the lead screw is moved, so that several groups of feed plates are moved back and forth along the side wall of the mounting plate, so that one of the feed groups can be quickly and accurately aligned with the target satellite, thereby improving the reception efficiency; the insert block is driven by the sliding block to be inserted into the preset slot of the mounting seat and cooperated with the spring and the sliding rod to facilitate the installation and disassembly of the mounting seat and the mounting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0024] Figure 1 It is a schematic diagram of the overall structure of the invention;

[0025] Figure 2 It is one of the connection structure schematic diagrams in the invention;

[0026] Figure 3 This is the second schematic diagram of the connection structure in the invention;

[0027] Figure 4 It is a schematic diagram of a local structure in the invention;

[0028] Figure 5 It is a schematic diagram of the feed component in the invention.

[0029] In the figure: 1. mounting seat; 11. slot; 2. antenna body; 3. connecting structure; 31. mounting block; 32. slide rod; 33. sliding block; 34. spring; 35. plug block; 36. limit block; 4. mounting frame; 5. fixing plate; 6. mounting plate; 61. slide groove; 7. driving structure; 71. screw rod; 72. synchronous wheel; 73. synchronous belt; 74. servo motor; 8. feed assembly; 81. feed plate; 82. slider; 83. connector; 84. limit plate; 85. threaded block. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] See also Figure 1-Figure 5 A satellite communication multi-beam antenna switching system includes a mounting seat 1, an antenna body 2 is installed directly above the mounting seat 1, both side walls of the mounting seat 1 are detachably connected to a mounting frame 4 through a plurality of connecting structures 3, a plurality of slots 11 are arranged on both side walls of the mounting seat 1, the connecting structure 3 includes a mounting block 31 fixedly connected to the side wall of the mounting frame 4, a sliding rod 32 is symmetrically installed on the surface of the mounting block 31, two sliding rods 32 are slidably connected to the same sliding block 33, and a sliding block 33 and the mounting block 31 are sandwiched between them. There is a spring 34, and a side wall of the sliding block 33 away from the spring 34 is fixedly connected with an insert block 35, and the insert block 35 can be inserted into the slot 11. A limit block 36 is set at one end of the two sliding rods 32 away from the mounting block 31. The sliding block 33 drives the insert block 35 to be inserted into the preset slot 11 of the mounting seat 1. The spring 34 will apply a resistance to the sliding block 33. When the insert block 35 is inserted into the slot 11, the movement of the sliding block 33 is limited by the spring 34 and the limit block 36, which facilitates the installation and disassembly of the mounting seat 1 and the mounting frame 4.

[0033] In this embodiment, fixed plates 5 are installed on both side walls of the middle part of the installation frame 4, and the same installation plate 6 is fixedly connected between the two fixed plates 5. A driving structure 7 is provided at the inner bottom end of the installation frame 4, and a PLC controller can be set on the fixed plate 5 to facilitate the control of the operation of the servo motor 74.

[0034] Furthermore, the driving structure 7 includes a screw rod 71 rotatably connected to the inner wall of the mounting frame 4, and a synchronous wheel 72 sleeved and fixed on the outer wall of the screw rod 71. The two synchronous wheels 72 are connected through a synchronous belt 73. One end of one of the screw rods 71 ​​is coaxially connected to a servo motor 74. The servo motor 74 drives the two screw rods 71 ​​to rotate simultaneously, so that several feed source components in the two mounting frames 4 are moved simultaneously, which is convenient for quickly and accurately aligning with the target satellite for information exchange.

[0035] It should be noted that a plurality of groups of feed assemblies 8 arranged in a cross-like manner are installed on the side wall of the mounting plate 6. The feed assembly 8 includes a feed plate 81 slidably connected to the mounting plate 6 through a plurality of sliders 82. The bottom surface of the feed plate 81 is fixedly connected to a limiting plate 84 through a connecting piece 83. A threaded block 85 is installed on one side of the limiting plate 84. By moving the connecting piece 83 fixedly connected to the side wall of the threaded block 85 threadedly connected to the screw rod 71, the plurality of groups of feed plates 81 can be moved back and forth along the side wall of the mounting plate 6, thereby facilitating the improvement of the efficiency of receiving information.

[0036] It should be supplemented that the top of the connecting member 83 is fixed to the bottom surface of the feed plate 81 by screws, and the end of the connecting member 83 away from the feed plate 81 is fixedly connected to the limiting plate 84 to facilitate the normal use of the structure.

[0037] It should be added that a threaded block 85 is installed on one side wall of the limiting plate 84, and several threaded blocks 85 are threadedly connected to the screw rod 71, so as to facilitate the movement of several groups of cross-arranged feed plates 81 along the mounting plate 6, thereby facilitating the reception of information.

[0038] The present invention also includes a signal processing and beam control module:

[0039] Signal processing unit: performs pre-processing operations such as filtering, amplification, and frequency conversion on the received satellite signals to improve signal quality, enhance signal strength, and convert high-frequency signals into intermediate-frequency signals suitable for subsequent processing. Its filter adopts a digital filter, which can be flexibly configured according to different frequency bands and communication protocols, and the filtering accuracy reaches ±0.5dB; the amplifier gain can be automatically adjusted in the range of 20dB to 60dB to adapt to different signal strengths; the frequency conversion accuracy of the inverter is ±0.1MHz.

[0040] Beam control unit: Calculates and generates beam switching control signals based on communication requirements and satellite position information, controls the drive structure to accurately adjust the position of the feed assembly, and implements beam switching and pointing control. The unit has a built-in high-precision positioning system with a positioning accuracy of ±0.1°. It can obtain satellite azimuth and elevation information in real time, and uses intelligent algorithms to calculate the optimal feed assembly position in combination with communication protocols and system preset parameters to ensure that the beam accurately points to the target satellite, with a beam switching time of less than 100 milliseconds.

[0041] The present invention also includes a fault detection and diagnosis module:

[0042] Real-time monitoring unit: Utilize sensors installed at key locations of the system, such as temperature sensors (accuracy of ±0.5°C), current sensors (accuracy of ±0.1A), voltage sensors (accuracy of ±0.5V), vibration sensors (accuracy of ±0.1g), etc., to collect system operating parameters in real time, including antenna body temperature, drive structure motor current and voltage, mounting base vibration, etc. The sampling frequency is 100Hz to 1000Hz, ensuring timely and accurate acquisition of system operating status information.

[0043] Fault diagnosis unit: Based on big data analysis and artificial intelligence algorithms, the collected operating parameters are analyzed and diagnosed. A fault feature database is established, which contains parameter feature patterns of various common faults (such as antenna element damage, drive structure failure, feed component abnormality, etc.), and a neural network algorithm is used for pattern recognition and fault classification. The diagnostic accuracy rate reaches more than 95%. When a fault is detected, the fault location can be quickly and accurately located, and detailed fault information and possible solutions are provided, and the diagnostic results are output through the system display or remote communication interface.

[0044] The present invention also includes a remote communication and monitoring module:

[0045] Communication unit: Integrate 4G / 5G communication module or satellite communication module to realize data transmission with the remote monitoring center. Support multiple communication protocols, such as TCP / IP, UDP, etc., to ensure stable and reliable data transmission. The data transmission rate can reach 10Mbps to 100Mbps in 4G network and 100Mbps to 1Gbps in 5G network. The satellite communication module can be adaptively adjusted according to different satellite frequency bands and orbital parameters to ensure smooth communication with the monitoring center in different environments.

[0046] Monitoring unit: Receives control instructions from the remote monitoring center, such as beam switching instructions, system parameter adjustment instructions, etc., and feeds back system operation status information and fault alarm information to the monitoring center in real time. The monitoring center can use this module to remotely configure and manage the system, such as adjusting signal processing parameters, optimizing beam control strategies, updating fault diagnosis algorithms, etc., to achieve centralized monitoring and unified management of multiple satellite communication multi-beam antenna switching systems distributed in different geographical locations, and improve system operation and maintenance efficiency.

[0047] Working principle: When using the satellite communication multi-beam antenna switching device, the user first inserts several plug blocks 65 on the outside of the installation frame 4 into the slot 11, and then starts the servo motor 74 to drive the two screw rods 71 ​​to rotate at the same time, so that the threaded block 85 on the outer wall of the screw rod 71 moves, driving the limit plate 84 fixedly connected to it to move, so that the feed plate 81 above the limit plate 84 slides along the slide groove 61 on the side wall of the installation plate 6. In the process of moving several groups of feed plates 81, one of the feed plates 81 can easily receive information data from the target satellite.

[0048] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A satellite communication multi-beam antenna switching system, comprising a mounting base (1), characterized in that: An antenna body (2) is mounted directly above the mounting seat (1); both side walls of the mounting seat (1) are detachably connected to a mounting frame (4) via a plurality of groups of connection structures (3); both side walls of the middle portion of the mounting frame (4) are mounted with fixing plates (5); a same mounting plate (6) is fixedly connected between the two fixing plates (5); a driving structure (7) is provided at the inner bottom end of the mounting frame (4); the driving structure (7) comprises a screw rod (71) rotatably connected to the inner wall of the mounting frame (4); a plurality of groups of cross-arranged feed assemblies (8) are mounted on the side walls of the mounting plate (6); the feed assemblies (8) comprise a feed plate (81) slidably connected to the mounting plate (6) via a plurality of slide blocks (82); the bottom surface of the feed plate (81) is fixedly connected to a limiting plate (84) via a connecting piece (83); a threaded block (85) is mounted on one side of the limiting plate (84).

2. The satellite communication multi-beam antenna switching device according to claim 1, characterized in that: The side walls of both sides of the mounting seat (1) are provided with a plurality of slots (11), the connection structure (3) comprises a mounting block (31) fixedly connected to the side wall of the mounting frame (4), and sliding rods (32) are symmetrically mounted on the surface of the mounting block (31).

3. The satellite communication multi-beam antenna switching device according to claim 2, characterized in that: The two slide bars (32) are slidably connected to the same slide block (33); a spring (34) is sandwiched between the slide block (33) and the mounting block (31); a side wall of the slide block (33) away from the spring (34) is fixedly connected to an insert block (35); the insert block (35) can be inserted into the slot (11); and a limit block (36) is provided at one end of the two slide bars (32) away from the mounting block (31).

4. The satellite communication multi-beam antenna switching device according to claim 1, characterized in that: The driving structure (7) further comprises a synchronous wheel (72) sleeved and fixed on the outer wall of the screw rod (71); the two synchronous wheels (72) are connected in transmission via a synchronous belt (73); and one end of one of the screw rods (71) is coaxially connected to a servo motor (74).

5. The satellite communication multi-beam antenna switching device according to claim 1, characterized in that: A plurality of the sliders (82) are fixedly connected to the feed plate (81), and both side walls of the mounting plate (6) are provided with sliding grooves (61) for accommodating the sliding of the sliders (82).

6. The satellite communication multi-beam antenna switching device according to claim 1, characterized in that: The top end of the connecting member (83) is fixed to the bottom surface of the feed plate (81) by means of screws, and one end of the connecting member (83) away from the feed plate (81) is fixedly connected to the limiting plate (84).

7. The satellite communication multi-beam antenna switching device according to claim 6, characterized in that: A threaded block (85) is installed on one side wall of the limiting plate (84), and a plurality of the threaded blocks (85) are threadedly connected to the screw rod (71).

8. The satellite communication multi-beam antenna switching system according to claim 1, characterized in that: Also includes signal processing and beam steering modules: Signal processing unit: performs pre-processing operations such as filtering, amplification, and frequency conversion on the received satellite signals to improve signal quality, enhance signal strength, and convert high-frequency signals into intermediate-frequency signals suitable for subsequent processing. The filter adopts a digital filter, which can be flexibly configured according to different frequency bands and communication protocols, and the filtering accuracy reaches ±0.5dB; the amplifier gain is automatically adjusted within the range of 20dB to 60dB; the frequency conversion accuracy of the frequency converter is ±0.1MHz; Beam control unit: Calculates and generates beam switching control signals based on communication requirements and satellite position information, controls the drive structure to accurately adjust the position of the feed assembly, has a built-in high-precision positioning system, obtains satellite azimuth and elevation information in real time, combines communication protocols and system preset parameters, and uses intelligent algorithms to calculate the position of the feed assembly.

9. The satellite communication multi-beam antenna switching system according to claim 1, characterized in that: Also includes fault detection and diagnostic modules: Real-time monitoring unit: using sensors installed in various parts of the system, including temperature sensors, current sensors, voltage sensors, and vibration sensors, real-time collection of system operating parameters, including antenna body temperature, drive structure motor current and voltage, and mounting base vibration, with a sampling frequency of 100Hz to 1000Hz; Fault diagnosis unit: Based on big data analysis and artificial intelligence algorithms, the collected operating parameters are analyzed and diagnosed. A fault feature database is established, including parameter feature patterns of antenna element damage, drive structure failure, and feed component abnormality. A neural network algorithm is used for pattern recognition and fault classification. The diagnostic accuracy rate reaches more than 95%. When a fault is detected, the fault location is located, and detailed fault information and possible solutions are provided. The diagnostic results are output through the system display or remote communication interface.

10. The satellite communication multi-beam antenna switching system according to claim 1, characterized in that: Also includes remote communication and monitoring modules: Communication unit: Integrates 4G / 5G communication module or satellite communication module to realize data transmission with the remote monitoring center, supports TCP / IP and UDP communication protocols, and the data transmission rate can reach 10Mbps to 100Mbps in 4G network and 100Mbps to 1Gbps in 5G network. The satellite communication module can be adaptively adjusted according to different satellite frequency bands and orbital parameters; Monitoring unit: Receives control instructions from the remote monitoring center, including beam switching instructions and system parameter adjustment instructions, and feeds back system operation status information and fault alarm information to the monitoring center in real time. The monitoring center can use this module to remotely configure and manage the system, including adjusting signal processing parameters, optimizing beam control strategies, updating fault diagnosis algorithms, etc., to achieve centralized monitoring and unified management of multiple satellite communication multi-beam antenna switching systems distributed in different geographical locations.

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