Low-altitude airborne communication, induction and sensing integrated multi-mode converged communication system and communication method

Abstract

The embodiment of the invention provides a low-altitude airborne communication, guidance and sensing integrated multi-mode fusion communication system and method, and the system comprises low-altitude airborne communication, guidance and sensing integrated multi-mode fusion equipment which is used for carrying out the control of communication modes, carrying out the information transmission with all communication systems and an aircraft, and carrying out the flight control of an aircraft flight control system; the ground low-altitude private network communication system is used for realizing information transmission between the low-altitude aircraft and the ground equipment through a ground low-altitude private network; the ground public network 4G / 5G communication system is used for realizing information transmission between the low-altitude aircraft and the ground equipment through a ground public network; the low-orbit satellite communication system and the ground satellite communication system are used for realizing information transmission between the low-altitude aircraft and ground equipment through low-orbit and ground satellite communication; the Beidou communication system is used for realizing flight navigation of the aircraft and acquiring flight information; and the other aircraft ADS-B communication system is used for sensing information of other aircrafts.

Description

Technical Field

[0001] This document relates to the field of low-altitude communication technology, and in particular to a low-altitude airborne multi-mode integrated communication, guidance and sensing system and communication method. Background Art

[0002] The low-altitude economy, a national strategic emerging industry, has experienced rapid growth in recent years. Low-altitude communication technology, as key infrastructure supporting this development, is attracting widespread global attention. Traditional terrestrial cellular networks (4G / 5G) are primarily designed with the communication needs of users on the ground in mind, resulting in insufficient coverage in remote areas and vertical coverage typically exceeding 300 meters. Satellite communications, while offering wide coverage, suffer from high costs, high power consumption, long latency, and low data rates, making them difficult to meet the high-speed, cost-effective demands of low-altitude equipment.

[0003] Low-altitude airborne equipment refers to communication equipment installed on low-altitude aircraft such as drones and eVTOL (electric vertical take-off and landing vehicles). It is used to realize data interaction between aircraft and ground control stations, other aircraft or satellites. It is a major component of the low-altitude communication technology system.

[0004] Currently, low-altitude airborne communication systems use a single 4G / 5G public network, or a public network combined with satellite communication. The communication network is single, the communication function is single, and the communication stability and reliability are low. It cannot meet the high-speed communication needs in remote areas with insufficient public network coverage and low-altitude areas above 300 meters, and its usage scenarios are limited.

[0005] In summary, the main shortcomings of existing technologies are as follows: 1. A single communication network, using the public network or a combination of the public network and satellite communications, results in low communication stability and reliability. 2. Functionality is limited to communication or navigation. 3. Due to insufficient public network coverage in remote areas and at 300km / h, high-speed communication scenarios are limited. Summary of the Invention

[0006] The purpose of the present invention is to provide a low-altitude airborne multi-mode fusion communication system and communication method, aiming to solve the above-mentioned problems in the prior art.

[0007] The present invention provides a low-altitude airborne multi-mode fusion communication system for communication, guidance and sensing, which is installed on a low-altitude aircraft and connected to the aircraft flight control system and aircraft sensing equipment, including: Low-altitude airborne multi-mode fusion equipment for communication, navigation and sensing, used to control the communication mode, transmit information with various communication systems and aircraft, and control the flight control system of the aircraft; A ground-based low-altitude private network communication system is connected to the low-altitude airborne multi-mode fusion equipment for realizing information transmission between low-altitude aircraft and ground equipment through the ground-based low-altitude private network; A 4G / 5G ground public network communication system is connected to the low-altitude airborne multi-mode fusion equipment for realizing information transmission between the low-altitude aircraft and the ground equipment via the ground public network; A low-orbit satellite communication system and a ground satellite communication system are connected to the low-altitude airborne communication, guidance and sensing integrated multi-mode fusion device, and are used to realize information transmission between the low-altitude aircraft and the ground equipment through low-orbit and ground satellite communications; The Beidou communication system is connected to the low-altitude airborne multi-mode fusion equipment for realizing aircraft flight navigation and obtaining flight information; The ADS-B communication systems of other aircraft are connected to the low-altitude airborne communication, navigation and sensing integrated multi-mode fusion equipment to sense the information of other aircraft.

[0008] The present invention provides a communication method for a low-altitude airborne communication, guidance, and sensing integrated multi-mode fusion communication system, which is used for the above-mentioned low-altitude airborne communication, guidance, and sensing integrated multi-mode fusion communication system. The method comprises: Control the communication mode through the low-altitude airborne multi-mode fusion equipment of communication, guidance and sensing, transmit information with various communication systems and aircraft, and control the flight control system of the aircraft; Based on the ground low-altitude private network communication system, information transmission between low-altitude aircraft and ground equipment is realized through the ground low-altitude private network; Based on the ground public network 4G / 5G communication system, information transmission between low-altitude aircraft and ground equipment is realized through the ground public network; Based on low-orbit satellite communication system and ground satellite communication system, information transmission between low-altitude aircraft and ground equipment is realized through low-orbit and ground satellite communication; Realize aircraft flight navigation and obtain time information based on the Beidou communication system; Detect information about other aircraft based on their ADS-B communication systems.

[0009] The embodiments of the present invention can improve the stability and reliability of data exchange between an aircraft and a ground control station, other aircraft, or satellites, increase communication rates, and reduce the power consumption and weight of airborne equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate one or more embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 2. This is a schematic diagram of the architecture of a low-altitude airborne multi-mode fusion communication system according to an embodiment of the present invention; Figure 2 2. It is a schematic diagram of the components of a low-altitude airborne communication, guidance and sensing integrated multi-mode fusion communication system according to an embodiment of the present invention; Figure 3 It is a flow chart of a communication method of a low-altitude airborne communication, guidance and sensing integrated multi-mode fusion communication system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0012] In order to enable those skilled in the art to better understand the technical solutions in one or more embodiments of this specification, the technical solutions in one or more embodiments of this specification will be clearly and completely described below in conjunction with the drawings in one or more embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on one or more embodiments of this specification, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this document.

[0013] System Example According to an embodiment of the present invention, a low-altitude airborne multi-mode fusion communication system is provided, which is installed on a low-altitude aircraft and connected to the aircraft flight control system and aircraft sensing equipment. Figure 1 Schematic diagram of a low-altitude airborne multi-mode fusion communication system for communication, guidance, and sensing according to an embodiment of the present invention. Figure 1 As shown, the low-altitude airborne communication, guidance, and sensing integrated multi-mode fusion communication system according to an embodiment of the present invention specifically includes: Low-altitude airborne multi-mode fusion equipment for communication, navigation and sensing, used to control the communication mode, transmit information with various communication systems and aircraft, and control the flight control system of the aircraft; A ground-based low-altitude private network communication system is connected to the low-altitude airborne multi-mode fusion equipment for realizing information transmission between low-altitude aircraft and ground equipment through the ground-based low-altitude private network; A 4G / 5G ground public network communication system is connected to the low-altitude airborne multi-mode fusion equipment for realizing information transmission between the low-altitude aircraft and the ground equipment via the ground public network; A low-orbit satellite communication system and a ground satellite communication system are connected to the low-altitude airborne communication, guidance and sensing integrated multi-mode fusion device, and are used to realize information transmission between the low-altitude aircraft and the ground equipment through low-orbit and ground satellite communications; The Beidou communication system is connected to the low-altitude airborne multi-mode fusion equipment for realizing aircraft flight navigation and obtaining flight information; the flight information specifically includes: position, speed and realization information.

[0014] The ADS-B communication systems of other aircraft are connected to the low-altitude airborne communication, navigation and sensing integrated multi-mode fusion equipment to sense the information of other aircraft.

[0015] The low-altitude airborne communication, guidance and sensing integrated multi-mode fusion equipment is specifically used to: control the communication mode to be a single-network communication mode, a dual-network communication mode or a triple-network communication mode, wherein the single-network communication mode is: the ground public network 4G / 5G communication system, the ground low-altitude private network communication system, and the low-orbit satellite communication system have only one communication network working at the same time; the dual-network communication mode is: the ground public network 4G / 5G communication system, the ground low-altitude private network communication system, and the low-orbit satellite communication system keep two communication networks working at the same time; the triple-network communication mode is: the ground public network 4G / 5G communication system, the ground low-altitude private network communication system, and the low-orbit satellite communication system work at the same time.

[0016] In single-network communication mode, the three communication networks of ground public network 4G / 5G communication system, ground low-altitude private network communication system, and low-orbit satellite communication system are automatically switched according to the network environment; in dual-network communication mode, the ground public network 4G / 5G communication system and the ground low-altitude private network communication system are automatically switched according to the network environment, and the flight control and management information are transmitted simultaneously through the low-orbit satellite communication system and the ground public network 4G / 5G communication system or the ground low-altitude private network communication system, and ordinary video and non-important information are transmitted through the ground public network 4G / 5G communication system or the ground low-altitude private network communication system.

[0017] The system further comprises: A ground duplicate filtering system is connected to the ground public network 4G / 5G communication system, the ground low-altitude private network communication system and the ground satellite communication system, and is used to filter duplicate information in the transmission information of the ground public network 4G / 5G communication system, the ground low-altitude private network communication system and the ground satellite communication system; The ground control system is connected to the ground weight filtering system, and is used to receive the transmission information filtered by the ground weight filtering system, and control the aircraft based on the transmission information.

[0018] The technical solutions of the embodiments of this invention enable airborne multi-mode converged communications, improving communication stability and reliability. Integrated airborne communication, navigation, and sensing reduces hardware costs, mitigates spectrum conflicts, and improves system energy efficiency. Low-altitude dedicated networks can also be used to expand the use of high-speed communications.

[0019] The above technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0020] The schematic diagram of the low-altitude airborne multi-mode fusion communication system architecture is as follows: Figure 1As shown, the system consists of a low-altitude, airborne, multi-mode communication, navigation, and sensing system, a ground-based, low-altitude private network communication system, a ground-based, public 4G / 5G network communication system, airborne and ground-based satellite communication systems, the Beidou communication system, the ADS-B communication system for other aircraft, the aircraft's flight control system, the aircraft's camera, other aircraft equipment, a ground-based gravity filtering system, and a ground-based control system. The public network, low-altitude private network, and low-orbit satellite communication system enable the transmission of flight control, management, video, voice, and meteorological information between low-altitude aircraft and ground equipment. Beidou enables aircraft navigation and time information acquisition, while the ADS-B system provides information on the position, speed, and identification of other aircraft.

[0021] Considering the reliability of the communication system, equipment power consumption and cost of use, the low-altitude airborne multi-mode integrated communication, guidance and sensing equipment has three optional communication modes, namely: Single-network communication: Only one communication network, including the public network, low-altitude private network, and low-orbit satellite, is working at the same time. The three networks automatically switch according to the network environment, which reduces the power consumption of airborne multi-mode equipment and saves satellite communication costs.

[0022] Dual-network communication: The public network or low-altitude private network and low-orbit satellite maintain two communication networks working simultaneously. The public network and private network automatically switch according to the network environment. Important flight control and management information are transmitted simultaneously through low-orbit satellites and the public network or low-altitude private network, while ordinary video and other information are transmitted through the public network or low-altitude private network. This not only ensures the reliability of important information transmission, but also appropriately reduces the power consumption of airborne multi-mode equipment.

[0023] Triple-network communication: public network, low-altitude private network, and low-orbit satellite work simultaneously, ensuring the reliability of communication and avoiding the complexity of network switching.

[0024] The low-altitude airborne multi-mode fusion communication system for communication, navigation and sensing is installed on low-altitude aircraft, connected to the aircraft's flight control system, camera, and other equipment, and transmits communication information through low-altitude private networks, public networks, low-orbit satellites and ground equipment.

[0025] The schematic diagram of the low-altitude airborne multi-mode fusion communication system is as follows: Figure 2 It consists of an integrated communication module, a low-altitude private network module, a 4G / 5G public network module, a low-orbit satellite module, a Beidou module, and an ADS-B module.

[0026] Low-altitude private network module: Communication between aircraft and ground equipment is carried out through the low-altitude private network communication network. Configuring different power amplifier transmission powers can meet the needs of long-distance communication between aircraft and ground base stations.

[0027] 4G / 5G public network module: In areas with public network coverage and good network signals, communication between the aircraft and ground equipment is carried out through the public network.

[0028] Low-orbit satellite module: When there is no coverage of public network and low-altitude private network signals or to increase communication reliability, low-altitude aircraft and ground equipment communicate through low-orbit satellites.

[0029] Beidou module: Low-altitude aircraft use the Beidou module for navigation and to obtain information such as position, speed, and time.

[0030] ADS-B module: Low-altitude aircraft broadcast their position, speed, identification information, etc. through ADS-B, and receive information from other aircraft through ADS-B.

[0031] It can be seen from the above technical solutions that the embodiment of the present invention integrates a low-altitude airborne multi-mode communication system that integrates 4G / 5G public networks, low-altitude private networks, and low-orbit satellites. The embodiment of the present invention combines Beidou satellite navigation, ADS-B communication system, and other airborne equipment sensing technologies to form an integrated low-altitude airborne communication system. The airborne equipment in the embodiment of the present invention adopts a multi-mode chip design, a high-efficiency power amplifier, and lightweight materials to reduce equipment power consumption and equipment weight. The embodiment of the present invention has single-network communication, dual-network communication, and triple-network communication options based on aspects such as communication stability and reliability, equipment power consumption, and usage costs. The low-altitude communication private network in the embodiment of the present invention can cover remote and low-altitude areas where public network coverage is insufficient, meeting the high-speed communication needs of these areas. The private network high-power module of the airborne low-altitude equipment in the embodiment of the present invention meets the long-distance and high-speed communication requirements of aircraft.

[0032] In summary, the technical solutions of the embodiments of this invention enable multi-mode converged communication, improving the stability and reliability of communications between low-altitude aircraft and ground-based equipment. Integrated communication, navigation, and sensing reduce hardware costs, mitigate spectrum conflicts, and improve system energy efficiency. Multiple communication modes are available, allowing users to select the optimal communication mode based on a comprehensive consideration of communication stability and reliability, device power consumption, and operating costs. Low-altitude dedicated networks and high-power airborne equipment meet the needs of long-distance, high-speed communications in areas with insufficient public network coverage.

[0033] Method Example According to an embodiment of the present invention, a communication method for a low-altitude airborne communication, guidance, and sensing integrated multi-mode fusion communication system is provided, Figure 3 FIG. 1 is a flow chart of a communication method of a low-altitude airborne communication, guidance, and sensing integrated multi-mode fusion communication system according to an embodiment of the present invention. Figure 3 As shown, the communication method of the low-altitude airborne communication, guidance and sensing integrated multi-mode fusion communication system according to an embodiment of the present invention specifically includes: Step S301: Controlling the communication mode through the low-altitude airborne multi-mode fusion device for communication, guidance, and sensing, transmitting information with various communication systems and the aircraft, and controlling the flight control system of the aircraft. The control of the communication mode through the low-altitude airborne multi-mode fusion device for communication, guidance, and sensing specifically includes: The control communication mode is a single-network communication mode, a dual-network communication mode or a triple-network communication mode, among which the single-network communication mode is: the ground public network 4G / 5G communication system, the ground low-altitude private network communication system, and the low-orbit satellite communication system have only one communication network working at the same time; the dual-network communication mode is: the ground public network 4G / 5G communication system, the ground low-altitude private network communication system, and the low-orbit satellite communication system keep two communication networks working at the same time; the triple-network communication mode is: the ground public network 4G / 5G communication system, the ground low-altitude private network communication system, and the low-orbit satellite communication system work at the same time.

[0034] In single-network communication mode, the three communication networks of ground public network 4G / 5G communication system, ground low-altitude private network communication system, and low-orbit satellite communication system are automatically switched according to the network environment; in dual-network communication mode, the ground public network 4G / 5G communication system and the ground low-altitude private network communication system are automatically switched according to the network environment, and the flight control and management information are transmitted simultaneously through the low-orbit satellite communication system and the ground public network 4G / 5G communication system or the ground low-altitude private network communication system, and ordinary video and non-important information are transmitted through the ground public network 4G / 5G communication system or the ground low-altitude private network communication system.

[0035] Step S302: information transmission between the low-altitude aircraft and the ground equipment is realized through the ground low-altitude private network based on the ground low-altitude private network communication system; Step S303: information transmission between the low-altitude aircraft and the ground equipment is realized through the ground public network based on the ground public network 4G / 5G communication system; Step S304, based on the low-orbit satellite communication system and the ground satellite communication system, information transmission between the low-altitude aircraft and the ground equipment is realized through low-orbit and ground satellite communications; Step S305: Implement aircraft flight navigation and obtain flight information based on the Beidou communication system; the flight information specifically includes: position, speed, and implementation information.

[0036] Step S306: Sense information of other aircraft based on the ADS-B communication system of other aircraft.

[0037] The method further comprises: Filter duplicate information in the transmission information of the ground public network 4G / 5G communication system, the ground low-altitude private network communication system and the ground satellite communication system through the ground duplicate filtering system; The transmission information filtered by the ground weight filtering system is received by the ground control system, and the aircraft is controlled based on the transmission information.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A low-altitude airborne multi-mode fusion communication system, characterized by: Installed on a low-altitude aircraft and connected to the aircraft's flight control system and aircraft sensing equipment, the system includes: Low-altitude airborne multi-mode fusion equipment for communication, navigation and sensing, used to control the communication mode, transmit information with various communication systems and aircraft, and control the flight control system of the aircraft; A ground-based low-altitude private network communication system is connected to the low-altitude airborne multi-mode fusion equipment for realizing information transmission between low-altitude aircraft and ground equipment through the ground-based low-altitude private network; A 4G / 5G ground public network communication system is connected to the low-altitude airborne multi-mode fusion equipment for realizing information transmission between the low-altitude aircraft and the ground equipment via the ground public network; A low-orbit satellite communication system and a ground satellite communication system are connected to the low-altitude airborne communication, guidance and sensing integrated multi-mode fusion device, and are used to realize information transmission between the low-altitude aircraft and the ground equipment through low-orbit and ground satellite communications; The Beidou communication system is connected to the low-altitude airborne multi-mode fusion equipment for realizing aircraft flight navigation and obtaining flight information; The ADS-B communication systems of other aircraft are connected to the low-altitude airborne communication, navigation and sensing integrated multi-mode fusion equipment to sense the information of other aircraft.

2. The system according to claim 1, wherein: The system further comprises: A ground duplicate filtering system is connected to the ground public network 4G / 5G communication system, the ground low-altitude private network communication system and the ground satellite communication system, and is used to filter duplicate information in the transmission information of the ground public network 4G / 5G communication system, the ground low-altitude private network communication system and the ground satellite communication system; The ground control system is connected to the ground weight filtering system, and is used to receive the transmission information filtered by the ground weight filtering system, and control the aircraft based on the transmission information.

3. The system according to claim 1, wherein: The low-altitude airborne communication, guidance and sensing integrated multi-mode fusion equipment is specifically used to: control the communication mode to be a single-network communication mode, a dual-network communication mode or a triple-network communication mode, wherein the single-network communication mode is: the ground public network 4G / 5G communication system, the ground low-altitude private network communication system, and the low-orbit satellite communication system have only one communication network working at the same time; the dual-network communication mode is: the ground public network 4G / 5G communication system, the ground low-altitude private network communication system, and the low-orbit satellite communication system keep two communication networks working at the same time; the triple-network communication mode is: the ground public network 4G / 5G communication system, the ground low-altitude private network communication system, and the low-orbit satellite communication system work at the same time.

4. The system according to claim 1, wherein: The low-altitude airborne communication, guidance and sensing integrated multi-mode fusion equipment is specifically used for: in single-network communication mode, automatically switching between the three communication networks of the ground public network 4G / 5G communication system, the ground low-altitude private network communication system, and the low-orbit satellite communication system according to the network environment; in dual-network communication mode, automatically switching between the ground public network 4G / 5G communication system and the ground low-altitude private network communication system according to the network environment, controlling flight control and management information to be transmitted simultaneously through the low-orbit satellite communication system and the ground public network 4G / 5G communication system or the ground low-altitude private network communication system, and transmitting ordinary video and non-important information through the ground public network 4G / 5G communication system or the ground low-altitude private network communication system.

5. The system according to claim 1, wherein: The flight information specifically includes: position, speed and realization information.

6. A communication method for a low-altitude airborne multi-mode fusion communication system, characterized in that: A low-altitude airborne communication, guidance, and sensing integrated multi-mode fusion communication system according to any one of claims 1 to 5, the method specifically comprising: Control the communication mode through the low-altitude airborne multi-mode fusion equipment of communication, guidance and sensing, transmit information with various communication systems and aircraft, and control the flight control system of the aircraft; Based on the ground low-altitude private network communication system, information transmission between low-altitude aircraft and ground equipment is realized through the ground low-altitude private network; Based on the ground public network 4G / 5G communication system, information transmission between low-altitude aircraft and ground equipment is realized through the ground public network; Based on low-orbit satellite communication system and ground satellite communication system, information transmission between low-altitude aircraft and ground equipment is realized through low-orbit and ground satellite communication; Realize aircraft flight navigation and obtain flight information based on the Beidou communication system; Detect information about other aircraft based on their ADS-B communication systems.

7. The method according to claim 6, characterized in that The method further comprises: Filter duplicate information in the transmission information of the ground public network 4G / 5G communication system, the ground low-altitude private network communication system and the ground satellite communication system through the ground duplicate filtering system; The transmission information filtered by the ground weight filtering system is received by the ground control system, and the aircraft is controlled based on the transmission information.

8. The method according to claim 6, characterized in that The control of the communication mode by the low-altitude airborne communication, guidance and sensing integrated multi-mode fusion device specifically includes: The control communication mode is a single-network communication mode, a dual-network communication mode or a triple-network communication mode, among which the single-network communication mode is: the ground public network 4G / 5G communication system, the ground low-altitude private network communication system, and the low-orbit satellite communication system have only one communication network working at the same time; the dual-network communication mode is: the ground public network 4G / 5G communication system, the ground low-altitude private network communication system, and the low-orbit satellite communication system keep two communication networks working at the same time; the triple-network communication mode is: the ground public network 4G / 5G communication system, the ground low-altitude private network communication system, and the low-orbit satellite communication system work at the same time.

9. The method according to claim 6, characterized in that The control of the communication mode by the low-altitude airborne communication, guidance and sensing integrated multi-mode fusion device specifically includes: In single-network communication mode, the three communication networks of ground public network 4G / 5G communication system, ground low-altitude private network communication system, and low-orbit satellite communication system are automatically switched according to the network environment; in dual-network communication mode, the ground public network 4G / 5G communication system and the ground low-altitude private network communication system are automatically switched according to the network environment, and the flight control and management information are transmitted simultaneously through the low-orbit satellite communication system and the ground public network 4G / 5G communication system or the ground low-altitude private network communication system, and ordinary video and non-important information are transmitted through the ground public network 4G / 5G communication system or the ground low-altitude private network communication system.

10. The method according to claim 6, characterized in that The flight information specifically includes: position, speed and realization information.

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