5G public network communication system

Abstract

The invention provides a 5G public network communication system. The 5G public network communication system comprises a power supply module, a 5G public network module and a converged communication module, the power supply module receives an airborne power supply and converts the airborne power supply into working voltage required by other modules; the 5G public network module carries out image transmission and command control communication with the ground end through a public network link; and the converged communication module is responsible for carrying out data interaction with the flight control system and the image load, and carrying out comprehensive processing and data distribution on terminal data. According to the 5G public network communication system provided by the invention, through cooperative work of the modules, multiple functions of data transmission, image transmission and the like can be integrated, and the 5G public network communication system is an airborne public network communication terminal which is high in integration level, high in reliability and excellent in economical efficiency and has the advantages of wide-area flight, high-definition image transmission, convenience in operation and the like. The method has strong maintainability and expandability, and well meets the actual requirements of independent work or cooperative work of small and medium-sized single-machine / cluster airborne communication systems.

Description

Technical Field

[0001] The present invention relates to the field of testing technology application, and in particular to a 5G public network communication system. Background Art

[0002] The data link of a traditional UAV includes an uplink, a downlink, and a relay link. The data transmission process includes encoding and decoding, modulation and demodulation, transmission and reception, etc., and command interaction and information transmission are carried out according to the agreed communication protocol and information transmission method. The main frequency band of the data link of a traditional UAV is the shortwave band, with limited transmission distance, low transmission rate, and poor stability. The purpose of the present invention not only inherits the communication means of the traditional UAV data link, but also can achieve a longer transmission distance and a higher data transmission rate, and can meet the transmission requirements of large-volume data such as high-definition video and high-precision maps.

[0003] As a supplementary link to the traditional data link terminal of drones, the 5G public network communication terminal integrates multiple functions such as data transmission, image transmission, measurement and control. It is an airborne public network communication terminal with high integration, strong reliability and excellent economy. It has the advantages of wide-area flight, high-definition image transmission and convenient operation.

[0004] The patent search formula (drone + 5G + communication system) found 3 patent contents after searching, and retrieved two patents related to the present invention, including:

[0005] 1) Patent No. CN112367096A, a UAV 5G converged link transmission system. It uses the stm32 series as a digital processing chip module, and the RF module includes an RF transceiver and a power amplifier to form an integral module. It provides an integrated UAV transmission link in a 5G module, which greatly ensures the stability of the UAV flight link. The difference from the present invention is that the present invention uses the Xilinx series FPGA as a digital processing module, which integrates the functions of ARM and DSP and has a faster and higher data processing capability; and the 5G module used in the present invention has the advantages of integrated transceiver and miniaturization.

[0006] 2) Patent No. CN115941030A, a drone communication system. The communication module sends signals to the receiving module via WIFI / microwave link, and the receiving module needs to use the remote control as a carrier and transmit the communication data to the ground platform via HDMI. The difference from the present invention is that the communication module signal of the present invention is sent to the cloud server via L link or 5G frequency band, and the link communication quality and image transmission can be directly viewed on the ground side.

[0007] 3) Patent No. CN108111811A, a UAV communication system and communication method based on 5G network data communication. The invention example uses a processor to electrically connect two communication modules and a flight control system to work together, wherein the first module receives the UAV heartbeat data packet and flight control status, and sends it to the server; the second module receives the UAV flight control status. The server needs to preset conditions for the two modules to determine the receiving channel. The difference from the present invention is that the present invention packages the data packet and flight control status after they are completely processed in the FPGA system, and then sends them directly to the cloud platform through the 5G module, and then displays them on the ground after being parsed by the cloud platform. Summary of the invention

[0008] The purpose of the present invention is to provide a 5G public network communication system, which uses ground mobile public network services to realize the communication function between single or multiple drones and ground control terminals, including image transmission / data transmission data link (downlink) and command and control data link (uplink). The specific functions are: transmission of downlink load data such as images and videos (aircraft end to ground end); transmission of uplink control command data (ground end to aircraft end), and the ability to communicate across line of sight between aircraft and ground.

[0009] The technical solution of the present invention is: to provide a 5G public network communication system, including a power module, a 5G public network module and a fusion communication module;

[0010] The power module receives the onboard power supply and converts it into the working voltage required by the other modules; the 5G public network module performs image transmission and command and control communications with the ground end through the public network link; the fusion communication module is responsible for data interaction with the flight control system and image payload, and performs comprehensive processing and data distribution on the terminal data.

[0011] Furthermore, the input of the power module is a DC power supply, which generates a 5V voltage after passing through a surge filter circuit; the 5V voltage is converted secondary to generate 3.7V and 3.3V voltages respectively, the 3.3V voltage powers the integrated communication module, and the 3.7V voltage powers the 5G public network module.

[0012] Furthermore, the function of the 5G public network module is to receive images or flight control data sent by the fusion communication module, and send them to the ground base station through the antenna after modulation.

[0013] Furthermore, the 5G public network module is developed based on QUECTEL's 5G module RM500Q. The 5G module RM500Q is a 5G NR / LTE-A / UMTS / HSPA+ wireless communication module that supports diversity reception function and supports data connections under multiple network standards such as 5G NR SA / NSA, LTE-FDD, LTE-TDD, and WCDMA.

[0014] Furthermore, the function of the fusion communication module is to receive telemetry and remote control instructions and navigation data sent by the flight control system, and send them to the 5G public network module after processing.

[0015] Furthermore, the digital processing part of the fusion communication module is implemented using an FPGA chip.

[0016] Furthermore, the flight control end sends remote control and telemetry instructions, and after the FPGA chip logic end receives the serial port data, it sends it to the ground terminal for display through the 5G public network module, completing real-time monitoring of the front end of the aircraft; at the same time, the FPGA chip connects to the image payload through the RJ45 network, and transmits the real-time image data of the image payload to the ground terminal through the 5G public network module link.

[0017] The 5G public network communication system provided by the present invention can meet the requirements of integrating multiple functions such as data transmission and image transmission through the collaborative work between various modules. It is an airborne public network communication terminal with high integration, strong reliability and excellent economy, and has the advantages of wide-area flight, high-definition image transmission, and convenient operation. It has strong maintainability and scalability, and better meets the actual needs of small and medium-sized single-machine / cluster airborne communication systems working alone or in collaboration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The invention will be further described below in conjunction with the accompanying drawings:

[0019] Figure 1 A schematic diagram of a 5G public network communication system terminal is provided for the present invention.

[0020] Figure 2 This is a block diagram of the power module of the present invention.

[0021] Figure 3 This is a block diagram of the 5G public network module of the present invention.

[0022] Figure 4 This is a block diagram of the fusion communication module of the present invention.

[0023] Figure 5 This is a test structure diagram of a single product of the present invention.

[0024] Figure 6 This is a test structure diagram of multiple products of the present invention. DETAILED DESCRIPTION

[0025] The 5G public network communication system proposed in the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the accompanying drawings are in a very simplified form and use inaccurate ratios, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0026] Public network communication is a common circuit-switched network, i.e., the backbone and branch networks set up by China Netcom, China Telecom, and China Railway Communications Corporation. In public network communication, the control end is connected to the server through a local area network, receives user requests, and makes requests to the server through the network to operate on the data; the server accepts the request from the control end, submits the data to the control end, and the control end calculates the data and presents the results to the user. The drone transmits information such as flight parameters to the server through the wireless network, and the server then transmits the data to the control end; the server transmits the control commands and parameters to the drone.

[0027] In order to achieve the above-mentioned purpose, the present invention provides a terminal based on a miniaturized 5G public network communication system, including a power module, a 5G public network module and a fusion communication module. The system composition block diagram of the present invention is shown below: Figure 1 .

[0028] The power module receives the onboard power supply and converts it into the working voltage required by the other modules. The DC power supply is input, and after the surge filter circuit, a 5V voltage is generated to power the fusion communication module; the 5V voltage is converted to 3.7V and 3.3V respectively after secondary conversion, and 3.3V is used to power the fusion communication module; 3.7V is converted to power the 5G public network module. The composition block diagram of the power module is shown in the figure. Figure 2 The average power consumption of a 5G public network communication terminal is 3W, and the peak power consumption is 6W.

[0029] The 5G public network module performs image transmission and command and control communication with the ground terminal through the public network link; the main function of the 5G public network module is to receive the image or flight control data sent by the fusion communication module, and send it to the ground base station through the antenna after modulation; the composition block diagram of the 5G public network module is as follows Figure 3 This module is developed based on QUECTEL's 5G module RM500Q. RM500Q is a 5G NR / LTE-A / UMTS / HSPA+ wireless communication module that supports diversity reception and supports data connections under multiple network standards such as 5G NR SA / NSA, LTE-FDD, LTE-TDD, and WCDMA.

[0030] The fusion communication module is responsible for data exchange with the flight control system and image payload, and for comprehensive processing and data distribution of terminal data. The main function of the fusion communication module is to receive telemetry and remote control commands and navigation data sent by the flight control system, and send them to the 5G public network module after processing. The block diagram of the fusion communication module is shown in the figure. Figure 4As shown in the figure. The digital processing part of the fusion communication module is implemented using the Xilinx Z7 series FPGA chip XC7Z020. The Zynq-7000 series is a fully programmable system-on-chip, mainly consisting of two parts: PS (processing system) and PL (Programmable Logic). The PS is based on two Cortex A9 ARM cores, and also includes on-chip memory, off-chip memory interface (DDR) and a series of peripheral interfaces. The Zynq-7000 series integrates the ARM CPU and peripherals into one chip, making the Zynq-7000 series have both processor and FPGA characteristics, suitable for hardware and software co-design.

[0031] The test block diagram of the 5G public network communication terminal equipment and the ground is as follows Figure 5 As shown in the figure, the flight control end sends the remote control and telemetry command, and after the FPGA logic end receives the serial port data, it sends it to the ground terminal for display through the 5G public network, completing the real-time monitoring of the front end of the aircraft; at the same time, the FPGA connects to the image payload through the RJ45 network, and transmits the real-time image data of the image payload to the ground terminal through the 5G public network link.

[0032] The test block diagram of the 5G public network communication terminal equipment multiple machines and the ground is as follows Figure 6 shown.

[0033] Example 1

[0034] The present invention proposes a 5G public network communication system terminal including a power module, a 5G public network module and a converged communication module. Figure 1 The present invention provides a schematic diagram of an overall framework of a 5G public network communication system terminal; Figure 2 To invent a power module block diagram; Figure 3 This is a block diagram of the 5G public network module of the present invention; Figure 4 This is a block diagram of the fusion communication module of the present invention.

[0035] The power module is responsible for receiving the onboard 9-36V power supply and converting it into the working voltage required by the other modules; inputting the 9-36V DC power supply, after the surge filter circuit, generates a 5V voltage through DCDC1 to power the fusion communication module. DCDC1 selects Linear's LT3431, with an input voltage of 5.5V-60V and an output current of up to 3A, which can meet the power supply requirements of the entire machine. The 5V voltage is generated by DCDC2 and DCDC3 to generate 3.7V and 3.3V respectively, and 3.3V is used to power the fusion communication module; 3.7V is converted to power the 5G public network module. Both DCDC2 and DCDC3 use TI's TPS82130, which uses a MicroSIP tiny package, with an input voltage of 3V~17V and an output current of up to 3A.

[0036] The 5G public network module is a 5G Sub-6 GHz module designed for loT / eMBB applications. It uses 3GPP Release 15 technology. The module is developed based on QUECTEL's 5G module RM500Q. RM500Q is a 5G NR / LTE-A / UMTS / HSPA+ wireless communication module that supports diversity reception. It supports data connections under various network standards such as 5G NR SA / NSA, LTE-FDD, LTE-TDD, DC-HSDPA, HSPA+, HSDPA, HSUPA, WCDMA, etc. Receive the image or flight control data sent by the fusion communication module, and send it to the ground base station through the antenna after modulation. Realize image transmission and command and control communication between the public network link and the ground end.

[0037] The fusion communication module receives telemetry and remote control commands and navigation data sent by the flight control system, and sends them to the 5G public network module after processing. The digital processing part of the fusion communication module is implemented using the Xilinx Z7 series FPGA chip XC7Z020. The Zynq-7000 series is a fully programmable system-on-chip, mainly consisting of PS (processing system) and PL (Programmable Logic). PL uses a 28nm process; PS is based on two Cortex A9 ARM cores, and also includes on-chip memory, off-chip memory interface (DDR) and a series of peripheral interfaces. The Zynq-7000 series integrates ARM CPU and peripherals into one chip, making the Zynq-7000 series have both processor and FPGA characteristics, suitable for hardware and software collaborative design. For devices with high heat consumption of FPGA and 5G public network modules, the structure designs a heat dissipation boss at the corresponding position of the cover plate, and adds a thermal pad between the device and the cover plate to make the device and the cover plate in good contact, improve thermal conductivity, and increase the heat dissipation area.

[0038] Figure 5 This is a schematic diagram of a single 5G public network communication terminal working alone. When working, the host computer simulates the flight control end serial port to send remote control and telemetry instructions. After the PL logic end of the FPGA receives the serial port data, it determines the data frame header, stores the received data in AXI_FIFO, transfers the data from the PL end to the PS end, and sends it to the ground terminal display through the 5G public network to complete the real-time monitoring of the front end of the aircraft; at the same time, the FPGA connects the image payload through the RJ45 network, and the image transmission of the 5G public network communication terminal is realized by RTSP streaming: the 5G public network communication terminal and the camera establish a TCP connection; use the established TCP connection for conversation and send RTSP streaming request; the client uses the TCP connection to receive image data. The real-time image data of the image payload is transmitted to the ground terminal through the 5G public network link.

[0039] Figure 6 This is a schematic diagram of the three 5G public network communication terminals working together. During operation, the host computer simulates the flight control end serial port to send remote control and telemetry commands to three different public networks, and sends them to the ground terminal through the 5G public network to display information of different public network equipment numbers, completing real-time monitoring of the front end of the aircraft; at the same time, the FPGA connects to the image payload through the RJ45 network, and transmits the real-time image data of the image payload to the ground terminal through the 5G public network link.

[0040] The contents not described in detail in this specification belong to the prior art known to those skilled in the art. It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A 5G public network communication system, characterized in that: Including power module, 5G public network module and converged communication module; The power module receives the onboard power supply and converts it into the working voltage required by the other modules; the 5G public network module performs image transmission and command and control communications with the ground terminal through the public network link; the fusion communication module is responsible for data interaction with the flight control system and image payload, and performs comprehensive processing and data distribution on the terminal data.

2. The 5G public network communication system according to claim 1, characterized in that: The input of the power module is a DC power supply, which generates a 5V voltage after passing through a surge filter circuit; the 5V voltage is converted twice to generate 3.7V and 3.3V voltages respectively, the 3.3V voltage powers the integrated communication module, and the 3.7V voltage powers the 5G public network module.

3. The 5G public network communication system according to claim 1, characterized in that: The function of the 5G public network module is to receive images or flight control data sent by the fusion communication module, and send them to the ground base station through the antenna after modulation.

4. The 5G public network communication system according to claim 3, characterized in that: The 5G public network module is developed based on QUECTEL's 5G module RM500Q. The 5G module RM500Q is a 5G NR / LTE-A / UMTS / HSPA+ wireless communication module that supports diversity reception function and supports data connections under multiple network standards such as 5G NR SA / NSA, LTE-FDD, LTE-TDD, and WCDMA.

5. The 5G public network communication system according to claim 1, characterized in that: The function of the fusion communication module is to receive telemetry and remote control instructions and navigation data sent by the flight control system, and send them to the 5G public network module after processing.

6. The 5G public network communication system according to claim 5, characterized in that: The digital processing part of the fusion communication module is implemented by using FPGA chip.

7. The 5G public network communication system according to claim 6, characterized in that: The flight control end sends remote control and telemetry commands. After the FPGA chip logic end receives the serial port data, it is sent to the ground terminal for display through the 5G public network module to complete real-time monitoring of the front end of the aircraft. At the same time, the FPGA chip connects to the image payload through the RJ45 network, and transmits the real-time image data of the image payload to the ground terminal through the 5G public network module link.

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