Low-altitude safety anti-interference network architecture design method and system oriented to communication, navigation and monitoring capabilities

Abstract

The invention discloses a communication, navigation and monitoring capability-oriented low-altitude security anti-interference network architecture design method and system, and relates to the technical field of unmanned aerial vehicle distribution, and the method comprises the steps: carrying out the systematic modeling of a low-altitude security network from a plurality of perspectives based on a UAF modeling language, and generating a multi-view architecture model; based on the multi-view architecture model, constructing an SDN three-layer architecture; based on a multi-view architecture model and an SDN three-layer architecture, constructing a low-altitude security network overall architecture; and based on the overall architecture of the low-altitude security network, analyzing a communication interference source in a low-altitude environment and the influence of the communication interference source on the low-altitude security network, and designing an anti-interference strategy based on the dynamic adjustment capability of the SDN three-layer architecture and the hierarchical cooperation mechanism of the overall architecture of the low-altitude security network. According to the invention, the interference problem in the communication, navigation and monitoring process of the unmanned aerial vehicle in the low-altitude environment can be effectively solved.

Description

Technical Field

[0001] This application relates to the field of drone delivery technology, and in particular to a design method and system for a low-altitude safety anti-interference network architecture oriented towards communication, navigation and surveillance capabilities. Background Technology

[0002] During drone operation, the low-altitude electromagnetic environment is complex, with numerous interference sources such as communication base stations, broadcast and television transmission towers, and industrial equipment. The electromagnetic signals radiated by these devices intertwine at low altitudes, easily interfering with the drone's communication system. Furthermore, as the number of drones increases, the electromagnetic signals emitted by the drones themselves may interfere with each other, leading to signal conflicts, data loss, or mistransmissions, reducing the performance and reliability of the communication system, and affecting flight safety.

[0003] Delivering goods safely to their destination involves the operational capabilities of a low-altitude security network architecture in complex scenarios, especially under extreme conditions. Therefore, the network architecture's ability to withstand interference is crucial to the success of the mission in this scenario. Summary of the Invention

[0004] The purpose of this application is to provide a design method and system for a low-altitude security anti-interference network architecture oriented towards communication, navigation, and surveillance capabilities, which can effectively solve the interference problems faced by UAVs in communication, navigation, and surveillance in low-altitude environments, and improve the operational stability and reliability of the low-altitude security network architecture.

[0005] To achieve the above objectives, this application provides the following solution: Firstly, this application provides a low-altitude security anti-jamming network architecture design method oriented towards communication, navigation, and surveillance capabilities, including: S1. Based on the UAF modeling language, a systematic model of the low-altitude security network is generated from several perspectives to produce a multi-view architecture model. S2. Based on the multi-view architecture model, construct a three-layer SDN architecture; the three-layer SDN architecture includes: application plane, control plane, and data plane; the application plane is used for global resource management and intelligent orchestration; the control plane is used for centralized control and coordination across airspace, spacespace, and groundspace; the data plane is composed of a three-layer air-space-ground device model and is used to execute data forwarding tasks under the instructions of the control plane. S3. Based on the multi-view architecture model and the SDN three-layer architecture, construct the overall architecture of the low-altitude security network; the overall architecture of the low-altitude security network includes an information layer, a management layer, and a physical layer. S4. Based on the overall architecture of the low-altitude security network, analyze the sources of communication interference in the low-altitude environment and their impact on the low-altitude security network, and design anti-interference strategies based on the dynamic adjustment capability of the SDN three-layer architecture and the hierarchical coordination mechanism of the overall architecture of the low-altitude security network; the anti-interference strategies include emergency response measures when a single UAV encounters interference, and collaborative anti-interference methods when multiple UAVs encounter regional interference.

[0006] Secondly, this application provides a low-altitude security anti-jamming network architecture design system oriented towards communication, navigation, and surveillance capabilities, used to implement the aforementioned low-altitude security anti-jamming network architecture design method oriented towards communication, navigation, and surveillance capabilities, including: The view architecture model building module is used to systematically model the low-altitude safety network from several perspectives based on the UAF modeling language, and generate a multi-view architecture model. The SDN three-layer architecture construction module is used to construct an SDN three-layer architecture based on the multi-view architecture model. The SDN three-layer architecture includes an application plane, a control plane, and a data plane. The application plane is used for global resource management and intelligent orchestration. The control plane is used for centralized control and coordination across airspace, spacespace, and groundspace. The data plane is composed of an air-space-ground three-layer device model and is used to execute data forwarding tasks under the instructions of the control plane. The low-altitude security network overall architecture construction module is used to construct the overall architecture of the low-altitude security network based on the multi-view architecture model and the SDN three-layer architecture; the overall architecture of the low-altitude security network includes three layers: information layer, management layer and physical layer; Based on the overall architecture of the low-altitude security network, this paper analyzes the sources of communication interference in the low-altitude environment and their impact on the low-altitude security network. Based on the dynamic adjustment capability of the SDN three-layer architecture and the hierarchical coordination mechanism of the overall architecture of the low-altitude security network, anti-interference strategies are designed. The anti-interference strategies include emergency response measures when a single UAV encounters interference, and collaborative anti-interference methods when multiple UAVs encounter regional interference.

[0007] Optionally, the multi-view architecture model includes a summary and overview view, a low-altitude safety network requirements view, an advanced transportation concept diagram, a transportation activity model view, a transportation rule model diagram, a transportation capacity concept view, a transportation capacity classification view, a capacity and task relationship mapping matrix view, an organization classification view, an organization relationship description view, an organization and transportation capacity relationship mapping matrix view, an equipment classification view, an equipment allocation view, and a transportation equipment and transportation capacity relationship mapping matrix view.

[0008] According to the specific embodiments provided in this application, the following technical effects are disclosed: This application provides a design method and system for a low-altitude safety anti-jamming network architecture oriented towards communication, navigation, and surveillance capabilities. Based on the UAF modeling language, it systematically models the low-altitude safety network from several perspectives and generates a multi-view architecture model. Through comprehensive modeling, the various elements, relationships, and processes of the low-altitude safety network in communication, navigation, and surveillance can be clearly identified. A three-layer SDN architecture is constructed, where the application plane is responsible for global resource management and intelligent orchestration, avoiding resource waste and disordered use, and improving the ability to cope with interference. The control plane performs centralized control and coordination across airspace, space, and ground, enabling unified coordination of devices and operations in different spatial dimensions. The data plane executes data forwarding tasks under the command of the control plane. Through standardized and controlled data forwarding processes, data can be transmitted more stably and accurately when interference occurs, reducing the damage to data transmission caused by interference. Based on the multi-view architecture model and the three-layer SDN architecture, the overall architecture of the low-altitude safety network is constructed, dividing it into an information layer, a management layer, and a physical layer. Through this layered architecture, interference is addressed from different levels, improving the overall anti-jamming performance of the network. Based on the overall architecture of the low-altitude safety network, this study analyzes the sources and impacts of communication interference. Utilizing the dynamic adjustment capabilities of the SDN three-layer architecture and the hierarchical coordination mechanism of the overall low-altitude safety network architecture, rapid emergency response measures can be implemented to minimize the impact of interference when a single UAV encounters interference. Furthermore, when multiple UAVs encounter regional interference, collaborative anti-interference methods ensure the smooth operation of communication, navigation, and surveillance tasks. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a flowchart of a low-altitude security anti-jamming network architecture design method for communication, navigation, and surveillance capabilities according to an embodiment of this application; Figure 2 A flowchart illustrating the framework of a low-altitude security anti-interference network architecture design method provided in an embodiment of this application; Figure 3 A diagram showing the design steps in one embodiment of this application; Figure 4 This is a UAF multi-view modeling and analysis diagram provided in an embodiment of this application; Figure 5 This is a schematic diagram of the UAF analysis perspective provided in an embodiment of this application; Figure 6Summary and overview view provided for one embodiment of this application; Figure 7 A requirements view provided for one embodiment of this application; Figure 8 Advanced transportation concept view provided for an embodiment of this application; Figure 9 A transportation activity model view provided in one embodiment of this application; Figure 10 A transportation rule model view provided in an embodiment of this application; Figure 11 A conceptual view of transport capacity provided in an embodiment of this application; Figure 12 A transport capacity classification view provided for an embodiment of this application; Figure 13 A transport capacity and task mapping matrix view provided in one embodiment of this application; Figure 14 An organizational personnel classification view provided in one embodiment of this application; Figure 15 An organizational relationship description view provided for an embodiment of this application; Figure 16 A device classification view provided for an embodiment of this application; Figure 17 A device configuration view provided for an embodiment of this application; Figure 18 This is a diagram of a multi-domain SDN low-altitude network architecture provided in an embodiment of this application; Figure 19 An overall conceptual design diagram of the architecture provided in one embodiment of this application; Figure 20 A diagram illustrating low-altitude safety capabilities provided in an embodiment of this application; Figure 21 A schematic diagram of the overall architecture of a low-altitude safety network provided in an embodiment of this application; Figure 22 This is a diagram illustrating the operational structure of a low-altitude safety network according to an embodiment of this application. Figure 23 A schematic diagram illustrating communication interference experienced by a drone during its operation, provided as an embodiment of this application; Figure 24 This is a schematic diagram of UAV communication when the communication interference is a non-cooperative target, as provided in one embodiment of this application. Figure 25 This is a schematic diagram of UAV communication when the communication interference is electromagnetic interference, provided as an embodiment of this application. Figure 26 This is a schematic diagram of UAV communication when communication interference is interrupted, as provided in one embodiment of this application. Detailed Implementation

[0011] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0012] Taking low-altitude drone logistics delivery as a typical scenario, this study focuses on logistics transportation tasks under complex meteorological environments and electromagnetic interference. Using low-altitude drone cargo transportation as an example, its typical application scenario is cargo transportation under complex meteorological conditions. This scenario targets logistics transportation under complex conditions such as electromagnetic interference and weather effects. Using maps and transportation targets within the scenario as input, it coordinates and commands various facilities including information collection, flight path planning, and command decision-making to monitor and analyze the entire transportation process. It outputs a deployment plan for satellites, drones, and ground resources, ensuring rapid handling of various sudden communication interference situations.

[0013] Considering the potential for interference in logistics and transportation scenarios, the network architecture will be subject to a certain degree of disruption. In this scenario, the low-altitude safety network's mission flow involves receiving instructions, planning flight paths, monitoring the entire process, resisting interference, and precise delivery. During operation, it maintains real-time communication with the ground, simultaneously detecting hazards and signal interference, ultimately ensuring the safe delivery of goods to their destination. Given the complexities involved, particularly under extreme conditions, the network architecture's anti-interference capabilities are crucial to the mission's success.

[0014] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] Example 1 like Figure 1 As shown, this embodiment provides a low-altitude security anti-jamming network architecture design method for communication, navigation, and surveillance capabilities, including: S1. Based on the UAF modeling language, a systematic model of the low-altitude security network is generated from several perspectives to produce a multi-view architecture model. S2. Based on the multi-view architecture model, construct a three-layer SDN architecture; the three-layer SDN architecture includes: application plane, control plane, and data plane; the application plane is used for global resource management and intelligent orchestration; the control plane is used for centralized control and coordination across airspace, spacespace, and groundspace; the data plane is composed of a three-layer air-space-ground device model and is used to execute data forwarding tasks under the instructions of the control plane. S3. Based on the multi-view architecture model and the SDN three-layer architecture, construct the overall architecture of the low-altitude security network; the overall architecture of the low-altitude security network includes an information layer, a management layer, and a physical layer. S4. Based on the overall architecture of the low-altitude security network, analyze the sources of communication interference in the low-altitude environment and their impact on the low-altitude security network, and design anti-interference strategies based on the dynamic adjustment capability of the SDN three-layer architecture and the hierarchical coordination mechanism of the overall architecture of the low-altitude security network; the anti-interference strategies include emergency response measures when a single UAV encounters interference, and collaborative anti-interference methods when multiple UAVs encounter regional interference.

[0016] In this embodiment, the design of a low-altitude security anti-jamming network architecture for communication, navigation, and surveillance capabilities consists of the following steps: Figure 2 As shown, the following are the main points: constructing a multi-view architecture using UAF modeling language from multiple perspectives, building a three-layer SDN architecture based on different perspectives, constructing the overall architecture of a low-altitude security network in different physical layers, analyzing the impact of communication interference on the architecture, and analyzing anti-interference methods.

[0017] Specifically, such as Figure 3 As shown, firstly, UAF multi-view modeling (Step 1) clarifies the scenario background, requirements, tasks, and capability boundaries of the low-altitude safety network, providing a theoretical framework for architecture design and laying the foundation for modeling. Next, a three-layer architecture is designed based on SDN technology (Step 2) to achieve centralized control and dynamic optimization of heterogeneous air-space-ground devices, solving the problem of traditional networks being unable to adapt to the dynamic nature of low-altitude environments and achieving technology implementation. Then, the UAF modeling results are integrated with SDN technology to construct a three-layer overall architecture of "information-management-physical" (Step 3), clarifying the element composition, hierarchical division of labor, and CNS capability support logic, forming a basic framework for anti-interference and completing architecture integration. Finally, based on the element division of labor and hierarchical collaboration of the overall architecture, targeted anti-interference strategies are designed (Step 4) to verify the effectiveness of the architecture in single UAV / regional interference scenarios, ultimately achieving the goals of high security, high efficiency, and anti-interference for the low-altitude safety network, and realizing capability verification.

[0018] In some embodiments, when performing step S1, the specific steps may be as follows: A multi-view architecture is constructed using the UAF modeling language from multiple perspectives.

[0019] Specifically, when performing multi-view modeling of UAF, a multi-view architecture (including summary and overview view Sm-Ov, requirement view Rq, task views Op-Sr / Op-Pr / Op-Ct, capability views St-Sr / St-Tx / St-Tr, etc.) is constructed based on the UAF modeling language to clarify the scenario background, core requirements, task flow, capability classification, and organization / equipment composition of the low-altitude safety network.

[0020] Among them, the multi-view modeling and analysis of UAF based on the low-altitude security network architecture is as follows: Figure 4 As shown, the UAF analysis perspective during the analysis is as follows: Figure 5 As shown. The specific design process is as follows: Step S1.1, Architecture-Based Framework Feature Design: When conducting a comprehensive analysis of the low-altitude safety network, it is necessary to grasp the key information of the low-altitude safety network architecture. This involves summarizing and outlining the low-altitude safety network from four aspects: transportation background, characteristic description, transportation purpose, and strategic principles (Sm-Ov). Simultaneously, after completing this process, a low-altitude safety network requirements diagram (Rq) is developed, establishing requirements related to the transportation system. These requirements reflect the corresponding strategic objectives, core requirements, mission tasks, and transportation capabilities of the low-altitude safety network architecture.

[0021] Step S1.2, Task-based analysis: When analyzing the low-altitude safety network task, first consider the key information such as the task activities, personnel, and transportation environment involved in the entire transportation scenario, and design a high-level transportation concept diagram (Op-Sr). Based on the completed design, the transportation activities are described, thus determining the transportation activity model view (Op-Pr) and forming the transportation rule model diagram (Op-Ct).

[0022] Step S1.3, Based on the analysis of the architecture capability: When analyzing the capabilities of the low-altitude safety network, it is first necessary to construct a transportation capability conceptual view (St-Sr) to intuitively illustrate the overall transportation capabilities involved in the low-altitude safety network scenario. Then, based on this view, a transportation capability classification view (St-Tx) is constructed by dividing the capabilities into six categories. Finally, based on the mapping between low-altitude safety network tasks and capabilities, a mapping matrix view (St-Tr) reflecting the relationship between capabilities and tasks is constructed.

[0023] Step S1.4: Analysis of Organizational Personnel Based on Architecture: When analyzing the organizational personnel of the low-altitude safety network, the personnel organization within the low-altitude safety network system is first described, establishing an organizational classification view (Ps-Tx). Simultaneously, an organizational relationship description view (Ps-Cn) is obtained to characterize the relationships between organizations. Based on the mapping between low-altitude safety network capabilities and organizational personnel, a mapping matrix view (Ps-Tr) reflecting the relationship between organizations and transportation capabilities is constructed.

[0024] Step S1.5: Analysis based on the operational architecture equipment: When analyzing the equipment in the low-altitude safety network system, firstly, the equipment composition and types in the low-altitude safety network system are described, and an equipment classification view (Rs-Tx) is established. Simultaneously, based on the equipment allocation of personnel in the low-altitude safety network organization, an equipment allocation view (Rs-Sr) is formed. Finally, based on the support relationship between low-altitude safety network equipment and transportation capacity, a mapping matrix view (Rs-Tr) reflecting the relationship between transportation equipment and transportation capacity is constructed. Thus, this embodiment obtains the overall design framework of the low-altitude safety network architecture.

[0025] Specifically, the above steps S1.1-S1.5 are as follows: When executing S1.1, based on the framework characteristics of the architecture, key information about the architecture structure is grasped, and the architecture is summarized and outlined in four aspects: operational background, characteristic description, task purpose, and strategic principles (Sm-Ov). Simultaneously, after completing this process, a requirements diagram (Rq) is developed to establish the relevant requirements for the architecture. These requirements reflect the corresponding goals, core requirements, and the tasks and capabilities associated with those requirements.

[0026] Taking logistics and transportation scenarios as an example, in situations such as Figure 6 The summary and overview view shows that the low-altitude safety network operates within a complex low-altitude electromagnetic environment, characterized by numerous unknown and variable interference sources. Its transportation objective is to accurately deliver goods to designated locations. This view outlines the necessary anti-interference methods to complete the transportation task, and uses these four aspects to characterize the summary and overview view. The requirements view describes the core requirements of the low-altitude safety network architecture, as well as the relationships between capabilities, tasks, and other elements. A dictionary is used to standardize the expression of personnel from various fields, defining keywords to ensure the model's readability and standardization.

[0027] Based on the low-altitude safety network system modeling process, the Summary and Overview (Sm-Ov) is first used to describe the transportation background, characteristics, transportation objectives, strategies, and criteria that influence the development and design of the low-altitude safety network system. It mainly describes the background of the low-altitude safety network in a complex geopolitical environment, the characteristics of the low-altitude safety network, the strategic objectives intended to be achieved through the low-altitude safety network, and the overall strategies and methods for achieving these strategic objectives.

[0028] like Figure 7 As shown, the demand view (Rq) generally reflects the overall capacity requirements for the development of the transportation system. It is used to model and describe the strategic objectives of the low-altitude safety network system. Its main purpose is to depict the core needs, overall requirements, and other core ideas of the low-altitude safety network system.

[0029] When performing step 1.2, based on task analysis, considering key information such as task activities, personnel, and environment involved in the entire scenario design, a high-level operational concept diagram (Op-Sr) is designed. Based on the completed design, activity descriptions are performed, the activity model view (Op-Pr) is determined, and the transportation rule model view (Op-Ct) is formed.

[0030] Taking logistics and transportation scenarios as an example, in situations such as Figure 8 The advanced transportation concept view shows the core transportation elements and activities. The transportation process model view, based on activity diagrams, describes transportation activities, their inputs / outputs, actions, and the flow between them, helping to form activity-based behaviors and processes. The view primarily describes the basic transportation tasks that support the achievement of strategic objectives during the execution of transportation patterns, the relationships between tasks, and the task sequence. The transportation rules model view mainly describes the constraints or instructions imposed on transportation tasks.

[0031] The Advanced Transportation Concept View (Op-Sr) showcases the core transportation elements and activities, providing a simplified graphical representation of the Summary and Overview View (Sm-Ov). Its content primarily includes key information such as the tasks, personnel, and transportation environment involved in the entire transportation scenario. The Advanced Transportation Concept View of the Low-Altitude Safety Network System is shown below. Figure 8 The image shown is a simplified graphical representation of a low-altitude security network.

[0032] Use such as Figure 9 The purpose of the transportation process model view (Op-Pr) shown is primarily to formally model the transportation process within the low-altitude safety network system. Based on activity diagrams, it describes transportation activities and their inputs / outputs, actions, and the processes between them, helping to form activity-based behaviors and processes. The view mainly describes the basic transportation tasks supporting the achievement of strategic objectives during the execution of transportation patterns, the interrelationships between tasks, and the task sequence. In this embodiment, the entire low-altitude safety network task process is mainly divided into three parts: UAV takeoff, flight along the flight path, and arrival at the designated location. It is generally constructed using SySMI activity diagrams or SysML block definition diagrams. Figure 9 The process of transport missions within the low-altitude safety network was demonstrated.

[0033] The purpose of the Transportation Rules Model View (Op-Ct) is primarily to describe the constraints of certain tasks within the low-altitude safety network architecture. The view mainly describes the restrictions or instructions imposed on transportation tasks. It is typically constructed using a matrix view or a table format. Figure 10 The task rules for some transportation missions within the low-altitude safety network system were demonstrated.

[0034] During step 1.3, based on the architectural capability analysis, construct as follows: Figure 11 The operational capability concept view (St-Sr) shown above provides an intuitive overview of the overall operational capabilities of the architecture scenario design. Based on this view, an operational capability classification view (St-Tx) is constructed by dividing capabilities into three categories. Finally, a mapping matrix view (St-Tr) reflecting the relationship between capabilities and tasks is constructed based on the mapping between tasks and capabilities.

[0035] Taking the logistics and transportation scenario as an example, the transportation capacity concept view mainly describes the capabilities corresponding to the three stages of the transportation task: drone take-off, flight along the flight path, and arrival at the designated location; the transportation capacity classification view describes the classification of capability requirements; and the transportation capacity and task mapping matrix view describes the mapping between transportation capacity and transportation tasks, showing the transportation capabilities required for the normal execution of each transportation task.

[0036] The Transport Capability Conceptual View (St-Sr) primarily describes the collection of transport capabilities within the low-altitude safety network. The view mainly describes the capabilities corresponding to the three phases of a transport mission: UAV takeoff, flight along a flight path, and arrival at the designated location. It is generally constructed using a SysML activity diagram or a SysML block definition diagram. Figure 11 A conceptual view of the transport capacity within the low-altitude safety network system is presented.

[0037] The main purpose of the transport capacity classification view (St-Sr) is to describe the types and classifications of capabilities required in the low-altitude safety network system. The view typically describes the classification of capability requirements and is generally constructed using a SysML block definition diagram. The view mainly categorizes the required capabilities of the low-altitude safety network into six types, such as communication network service capabilities, communication network operational capabilities, and communication network resource capabilities. Figure 12 As shown.

[0038] The Transport Capacity and Task Mapping Matrix View (St-Tr) model primarily describes the mapping between transport capacity and transport tasks, showcasing the transport capacity required for the normal execution of each transport task. Figure 13 This is a view of the transportation capacity and task mapping matrix. The corresponding position marked with "√" indicates that the transportation activity requires the corresponding transportation capacity to be realized.

[0039] During step S1.4, based on the architecture, the organizational personnel analysis first describes the personnel organization within the architecture, establishing an organizational classification view (Ps-Tx), and simultaneously obtaining an organizational relationship description view (Ps-Cn) to characterize the relationships between organizations. Based on the mapping between architectural capabilities and organizational personnel, a mapping matrix view (Ps-Tr) reflecting the relationship between organizations and operational capabilities is constructed.

[0040] Taking logistics and transportation scenarios as an example, in situations such as Figure 14 The organizational and personnel classification view shows the organizational types and related classifications within the low-altitude safety network system; the organizational relationship description view describes the relationships between organizations within the low-altitude safety network system.

[0041] The Organizational Personnel Classification View (Ps-Tx) model describes the organizational types and related classifications within the low-altitude safety network system. The view typically needs to describe the classification of personnel within the involved organizations, and is generally constructed using SysML block definition diagrams. For example... Figure 14 As shown, this depicts a classification view of personnel within the low-altitude safety net organization.

[0042] The Organizational Relationship Description View (Ps-Cn) model describes the relationships between organizations within the low-altitude safety network system. The organizational relationships typically described in the view are hierarchical relationships, usually constructed using SysML block definition diagrams. For example... Figure 15 The diagram shows a description of the organizational structure of the low-altitude safety network.

[0043] The Equipment Classification View (Rs-Tx) model describes the equipment types and related classifications involved in the low-altitude safety network system; the view typically describes the equipment classifications involved and is generally constructed using a SysML block definition diagram. For example... Figure 16 The image shows a classification view of low-altitude safety net equipment.

[0044] In step S1.5, the operational architecture equipment is analyzed, the equipment composition in the architecture is described, and an equipment classification view (Rs-Tx) is established. At the same time, based on the equipment allocation of the operational organization personnel, an equipment allocation view (Rs-Sr) is formed. Finally, based on the support relationship between equipment and operational capabilities, a mapping matrix view (Rs-Tr) reflecting the relationship between equipment and operational capabilities is constructed.

[0045] Taking logistics and transportation scenarios as an example, the equipment classification view describes the types and classifications of equipment involved in the low-altitude safety net system; in other words... Figure 17 The equipment allocation view shown depicts the equipment allocation of personnel within the low-altitude safety network system.

[0046] The Equipment Assignment View (Rs-Sr) model primarily describes the equipment assignment of personnel within the low-altitude safety network system; the view typically describes the equipment assignments involved and is generally constructed using SysML block definition diagrams. For example... Figure 17 The diagram shows a configuration view of the low-altitude safety net equipment.

[0047] In some embodiments, when performing step S2, the specific steps may be as follows: Based on the multi-view architecture obtained in step S1, a three-layer SDN architecture is built from different perspectives.

[0048] The SDN three-layer architecture comprises the application plane, control plane, and data plane. This architecture is the core support for centralized management, dynamic optimization, and anti-interference capabilities of low-altitude secure networks. This embodiment illustrates the specific functions of the SDN architecture from the perspectives of each of the three planes: Application plane: Enables global management and intelligent orchestration. It is located at the top layer of the architecture and is responsible for the management and orchestration of network applications and services. Its core functions include resource and configuration management.

[0049] Control plane: Enables centralized management and coordination across domains. It plays a role in centralized control and cross-domain coordination through northbound interfaces (communicating with the application plane) and southbound interfaces (such as the Open Flow protocol, communicating with data plane devices).

[0050] Data plane: Enables efficient data forwarding and hardware normalization. It consists of three layers of network devices (satellites, drones, ground stations, etc.) that enable air-space-ground communication. Its core function is to perform forwarding tasks and achieve unified hardware management.

[0051] Specifically, when designing the SDN network architecture, the input is the definition of network functional requirements (such as dynamic routing and resource scheduling) and device classification (satellite, UAV, ground equipment) in the multi-view architecture output from step S1. The second output is the SDN three-layer architecture (application plane, control plane, data plane), which realizes centralized management and control, dynamic optimization, and hardware normalization management of the low-altitude network.

[0052] Specifically, the SDN network architecture design based on the overall framework of a low-altitude security anti-interference network involves the following steps: S2.1 Build the application plane. The application plane is located at the top layer of the network architecture and mainly implements management and orchestration functions.

[0053] Generally, the network applications and services provided by the application plane mainly include: Configuration: This mainly refers to operations related to hardware infrastructure, such as status acquisition and parameter settings. Considering the heterogeneity of the low-altitude safety network, the configuration and implementation of hardware equipment should facilitate the management of various devices in each network domain, such as satellites and low-altitude platforms in different orbits, at different altitudes, and of different models.

[0054] Data Flow Classification and Management: The main goal of data flow management is to minimize power consumption, improve network utilization, and provide service optimization techniques such as load balancing. SDN can identify data flows from different services and instruct underlying devices to forward the identified data flows, thereby providing efficient traffic control and management strategies for low-altitude security networks.

[0055] Topology discovery: When a new device is added to the data plane or an existing device is removed, the controller obtains and updates the network topology information.

[0056] Load balancing: Load balancing aims to distribute available network resources among available network links based on network load, link conditions, and device processing capacity. The SDN controller can obtain the current data volume distribution of the network and execute load balancing strategies based on network resource utilization to alleviate network congestion and avoid resource waste.

[0057] Routing Decisions: Routing is the most fundamental and crucial function in any network, ensuring end-to-end data transmission. The high mobility of network nodes such as satellites and drones in low-altitude safety networks leads to real-time changes in network topology, introducing diversity and complexity to routing schemes. SDN network architecture achieves interconnectivity between different network domains through adaptive and intelligent routing mechanisms. Data flows from different services and applications should be routed to different links, while the optimal path is selected based on the overall network traffic distribution and varying quality of service requirements.

[0058] Network resource management and allocation: Based on the current network status, optimize transmission power and manage and rationally allocate network resources such as spectrum and bandwidth. Traditional resource-oriented management methods are no longer suitable for the ever-increasing data volume and application service demands in low-altitude safety networks. SDN-based network architecture introduces more dynamism into the management of wireless resources in satellite-to-ground, air-to-ground, and ground links, optimizing network resource utilization and enabling on-demand, real-time adjustments to the configuration and scale of the low-altitude safety network. Intelligent network resource management can respond promptly to user requests, dynamically allocating network resources such as satellite bandwidth to users, and providing flexible and customizable wireless access services.

[0059] S2.2 Construct the control plane. The control plane communicates with the application plane through the northbound application programming interface and interprets and executes the corresponding functions. The control plane controls each network hardware device deployed on the data plane through the southbound application programming interface (such as the OpenFlow protocol).

[0060] In the control plane, logical controllers distributed across three domains centrally manage and control their respective network domains. As cross-domain communication access points, these controllers can collect network device information within their own domain, control the normal operation of network devices, and receive and interpret operational commands from the main controller, sending these control signals to SDN devices in the data plane to achieve overall management optimization of the low-altitude safety network. Based on the different domains of the controllers, the control plane can be divided into three parts: satellite, low-altitude air network, and ground controllers.

[0061] To dynamically manage the low-altitude safety network, the SDN controller in each network domain periodically collects network status information. This collected data is analyzed by the application plane to optimize and process the corresponding network domain. The application plane analyzes the collected network information, transforms it into management commands, and sends them to the corresponding underlying hardware devices to update hardware configurations and refresh instruction sets. If necessary, this collected network information data is also sent to the main controller. The main controller analyzes this information to obtain the current resource utilization of all network domains, further processing for cross-domain operations. Due to limitations in the online processing capabilities and storage capacity of satellites and high-altitude platforms, compared to traditional terrestrial network SDN controllers, the controllers in satellite and airborne network domains, in addition to considering control functions, also need to consider the transmission link characteristics between the control plane and data plane, as well as the satellite-to-ground and air-to-ground link characteristics during communication between network domain controllers.

[0062] S2.3 Construct the data plane. The data plane mainly includes network devices distributed in three domains (air-space-ground). These devices only perform data flow forwarding tasks.

[0063] The physical infrastructure of the data plane mainly includes SDN equipment, such as satellites, low-altitude platforms, ground switches, satellite gateways, and ground stations. These physical devices primarily execute data forwarding instructions from the SDN controllers of their respective domains. Satellites are responsible for receiving data from ground users or low-altitude platforms and forwarding it between satellites via inter-satellite links according to instructions. Low-altitude platforms (such as drones) can act as airborne base stations to provide wireless access services to ground users, and can also forward data from ground users or satellites according to instructions sent by controllers deployed on high-altitude platforms, enabling cross-domain data transmission. Ground network equipment is distributed in the radio access network, backhaul network, and core network, providing routing and switching functions for user data. In addition, as interconnection points for cross-domain data communication, ground stations (or satellite gateways) can identify data streams for different services and allocate these data streams to the corresponding ground links, satellite links, or air-to-ground links based on service quality requirements and actual link quality.

[0064] like Figure 18This demonstrates that a fully software-defined concept is implemented across satellite systems, airborne platforms, and terrestrial networks. All devices, including satellites, drones, switches, and routers, must have a unified logical structure. This transforms heterogeneous devices across the data plane into a single, logically unified switch from the controller's perspective, facilitating management and control. In SDN networks, this logical structure is primarily implemented through OpenFlow. OpenFlow serves as both a communication protocol between the SDN controller and network devices and a logical structure specification for SDN network switches. In this environment, satellites, drones, and ground stations deployed across the three network domains are all transformed into OpenFlow switches.

[0065] In some embodiments, when performing step S3, the specific steps may be as follows: Based on the SDN three-layer architecture constructed in step S2, construct the overall architecture of the low-altitude security network.

[0066] Specifically, the constructed low-altitude safety network architecture is the basic framework supporting the core capabilities (CNS capabilities) and anti-jamming functions of the low-altitude safety network, and its specific functions are as follows: Define the architecture and functional positioning. By defining the six key elements of the architecture (command, action, perception, identification, surveillance, and execution), clarify the core entities of the low-altitude safety network (such as the low-altitude control center, drones, sensors, and regulatory authorities) and their responsibilities, providing a foundation for subsequent functional implementation and mission execution.

[0067] As a support for building an integrated air-space-ground network, a three-layer air-space-ground network model is constructed based on the structure-function-mission model to achieve multi-domain resource collaboration. The physical layer integrates hardware equipment such as satellites, UAVs, and ground base stations to form a communication, navigation, and surveillance infrastructure covering the entire domain; the information layer supports mission generation and real-time decision-making through data interaction (data transmission between UAVs and satellites / grounds); and the management layer (regulatory, air traffic control, and execution departments) ensures compliant network operation and prevents conflicts and violations through hierarchical control.

[0068] Strengthening CNS capabilities and anti-interference foundation. The architecture design focuses on supporting CNS capabilities, while providing a framework for anti-interference strategies through element collaboration. Communication capabilities: Relying on the redundant design of air-space-ground links, it provides the hardware foundation for anti-interference methods such as link switching and frequency switching; Navigation and surveillance capabilities: Real-time monitoring of UAV status and environmental interference is achieved through the collaboration of sensors, satellites, and ground facilities; Data security: Data is protected from theft through management layer supervision and encrypted transmission at the information layer.

[0069] Specifically, when designing the overall framework of the low-altitude security network, the SDN air-space-ground hardware hierarchy division, control and forwarding logic output in step S2, combined with the capability requirements (CNS capabilities, anti-interference requirements) in step S1, can yield the overall architecture of the low-altitude security network (a three-layer architecture of structure-function-task model + information layer-management layer-physical layer), clarifying the architectural components (six elements including command and action), the air-space-ground three-layer network structure, and the overall anti-interference framework.

[0070] The overall framework for the low-altitude safety network is based on the three-layer SDN architecture. This framework is specifically reflected in the reuse of structural models. The structural model is based on a three-layer air-space-ground network model, directly corresponding to the air-space-ground device distribution in the SDN data plane, clearly defining the hierarchical division of the physical layer infrastructure. The functional model must reflect "CNS (communication, navigation, surveillance) capabilities and anti-interference capabilities," relying on routing decisions in the SDN application plane (ensuring navigation communication), cross-domain collaboration in the control plane (achieving full-domain surveillance), and efficient forwarding in the data plane (supporting real-time communication). The three-layer architecture of "information layer, management layer, and physical layer" corresponds to the three layers of SDN. The physical layer corresponds to the SDN data plane (hardware devices such as UAVs and communication facilities); data interaction in the information layer relies on data flow management in the SDN application plane and signaling transmission in the control plane; operational intentions in the management layer (such as path optimization and interference handling) are issued to physical layer devices through instructions from the SDN control plane.

[0071] Specifically, the overall conceptual design and framework description of the low-altitude security network architecture can be as follows: S3.1 Overall Architecture Concept Design: like Figure 19 As shown, the service scenario of the low-altitude safety network architecture is the complex low-altitude environment, which includes factors such as electromagnetic interference and weather effects. The drone, as the execution unit, is of paramount importance in the architecture. This architecture is constructed to ensure that ground personnel can communicate with the drone at all times. Communication security is guaranteed based on a three-layer air-space-ground network structure, relying on the wide-range communication of satellites, real-time feedback communication on drones, and high-efficiency communication from ground base stations, together building a highly secure, efficient, and low-cost low-altitude safety network.

[0072] S3.2, Capability Analysis: like Figure 20As shown, given that drones, as operational entities, need to navigate smoothly in complex low-altitude environments, the architecture must provide them with communication, navigation, and surveillance capabilities. Furthermore, when encountering interference, in addition to the drones themselves possessing a certain level of anti-interference capability, the entire architecture also needs to have anti-interference strategies, such as link switching and frequency switching, to at least ensure that the drone's communication capabilities are not interrupted. Additionally, it must ensure that data is not stolen and maintain data security.

[0073] S3.3 Overall framework description of low-altitude security network anti-interference: A low-altitude safety network architecture model for logistics and transportation scenarios is constructed. This model is derived by taking the application scenario, mission objectives, and available resources as input. This process involves several steps: S3.3.1. Define the architectural components. Develop an architecture with CNS capabilities and interference resistance, and improve the equipment involved in the low-altitude security network architecture.

[0074] The transportation architecture element set N includes six elements: command, action, perception, identification, surveillance, and execution.

[0075] The command elements specifically include: a low-altitude control center and low-altitude management departments. The command department analyzes large amounts of traffic data, predicts traffic flow, and optimizes flight paths and scheduling in real time, thereby improving system operational efficiency.

[0076] The operational elements specifically include: unmanned aerial vehicles (UAVs). UAVs are the core of the low-altitude safety network, encompassing multiple aspects such as flight control, navigation, communication, and surveillance. As an operational element, UAVs can safely and autonomously navigate in complex urban environments, facilitating the rapid, flexible, and automated transportation of goods and personnel.

[0077] The specific sensing elements include: UAV onboard sensor equipment, ground base stations, and satellite base stations. First, UAVs can spontaneously sense sources of danger and interference. Second, they can also sense dangerous situations during flight with the assistance of ground base stations and satellites.

[0078] The specific identification elements include: the intelligent identification equipment onboard the drone and the ground-based safety control department. The drone can identify information such as the location of interference sources during conflicts and interference processes, or the information can be identified by the ground-based safety control department and then transmitted to the drone.

[0079] The specific elements under surveillance include: government regulatory departments, ground security control departments, etc.

[0080] Specific execution elements include: operators, etc.

[0081] S3.3.2. Based on the architectural components, construct a structure-function-task model. Use the Sysml modeling language to construct the overall architecture of the low-altitude security network.

[0082] In the structural model, a three-layer network model of air-space-ground is constructed based on the architectural components.

[0083] In the functional model, to reflect the CNS capabilities and anti-interference capabilities of the low-altitude security network, six elements are combined to highlight the capabilities of each facility.

[0084] In the mission model, based on the logistics and transportation mission, the possible communication interference during the operation of the UAV is considered, and corresponding anti-interference methods are designed.

[0085] Finally, based on the structure-function-task model, the overall architecture of the low-altitude security network is constructed using Sysml, such as... Figure 21 As shown.

[0086] S3.3.3. Transform the structure-function-task model into a low-altitude safety network architecture. Based on the UAF method, construct a low-altitude safety network operation structure diagram.

[0087] The low-altitude network architecture consists of three layers: the information layer, the management layer, and the physical layer.

[0088] Specifically, such as Figure 22 As shown, the information layer comprises five information decision-making elements: communication, navigation, surveillance, meteorology, and air traffic control. It is responsible for data interaction between UAVs or between UAVs and satellites / ground systems, as well as the generation of transportation missions. The management layer mainly consists of three elements: regulatory departments, air traffic control departments, and execution departments. Regulatory departments are primarily responsible for supervising the execution departments to regularly maintain aircraft safety, ensure ground personnel safety, and prevent violations. Air traffic control departments are responsible for airspace management, preventing conflicts between UAVs, preventing unauthorized flights, and preventing flights over sensitive areas. The execution departments manage UAV safety and maintain customer data. The physical layer consists of specific UAV equipment, communication, navigation, surveillance facilities, and service facilities. Each entity operates autonomously according to decision-making rules or receives and executes instructions from higher levels. The information layer provides real-time data support to the physical layer, while the physical layer, in turn, feeds back the monitored data to the information layer for analysis. The information layer provides real-time data support to the management layer, and the management layer transmits operational intentions to the information layer. The physical layer provides real-time data support to the management layer, and the management layer transmits operational intentions to the physical layer.

[0089] In some embodiments, step S4 can be performed as follows: The anti-interference method designed for interference scenarios relies on the dynamic adjustment capability of the SDN three-layer architecture. When a drone encounters signal interference / interruption, the SDN application plane's "topology discovery" senses the network status in real time, the control plane's "routing decision" replans the path (such as switching to a satellite link), and the data plane devices execute new forwarding instructions to achieve link switching or frequency switching. In the face of large-scale interference, the satellite and ground controllers in the SDN control plane collaborate, using the application plane's "load balancing" to redirect traffic in the affected area to other links. The drones or ground stations in the data plane act as relays, quickly adjusting forwarding rules with the help of the Open Flow protocol to ensure uninterrupted communication.

[0090] Specifically, S4 analyzes interference sources in the low-altitude environment by combining the components of the overall architecture (such as sensing and identification elements). Sensing elements (UAV sensors, ground base stations) are used to detect complex electromagnetic interference, severe weather, and intrusion by non-cooperative targets. Identification elements (UAV intelligent devices, ground control departments) are used to locate the position and type of interference sources, providing a basis for anti-interference measures. Anti-interference strategies are designed based on the hierarchical architecture. For different interference scenarios, anti-interference methods are implemented based on the hierarchical division of labor within the overall architecture. When a UAV encounters signal interference / interruption, the data interaction capabilities of the information layer (such as satellite link backup) and the equipment redundancy of the physical layer (ground base station assistance) are utilized to initiate emergency measures (such as switching to satellite links or manual control) to ensure uninterrupted communication. When subjected to regional electromagnetic interference, the air traffic control department at the management level and the UAV swarm at the physical layer coordinate to avoid interference areas and maintain network connectivity through link switching (such as UAV relay) or frequency switching within the architecture.

[0091] When determining the anti-interference method, the first input is the anti-interference capability analysis, along with the architectural elements output by S3 (such as sensing elements to detect interference sources and identifying elements to locate interference types), hierarchical architecture (information layer data support, management layer scheduling, and physical layer device execution), and capability-task mapping relationships. This yields specific anti-interference methods (single UAV emergency response and multi-UAV regional anti-interference), validating the effectiveness of the architecture in interference scenarios.

[0092] Specifically, the analysis of anti-interference capabilities based on the low-altitude security network architecture can be as follows: Based on different perspectives of the UAF (including different views and the XXX mapping matrix obtained above), analyze the types of interference that will affect communication in the low-altitude safety network, and illustrate them graphically. Based on these different types of interference, what measures need to be taken to ensure the normal operation of the communication link?

[0093] Establish emergency response measures for situations where a single drone encounters signal interference / interruption.

[0094] Establish emergency response measures for individual drones encountering signal interference / interruption. During operation, drone signals can be affected by complex environmental obstructions, electromagnetic interference sources, and severe weather. After signal loss or disruption, the drone needs to take measures to deal with the interference and restore normal operation.

[0095] Establish anti-interference measures for multiple drones encountering regional electromagnetic interference.

[0096] When industrial facilities or power towers are turned on, drones will face regional electromagnetic interference, which will have a significant impact on their communication signals. Therefore, drones will take corresponding emergency measures to resist regional interference in the face of large-scale electromagnetic interference problems.

[0097] like Figure 23 As shown, drones are generally subject to a lot of communication interference during operation. Common types of interference include intrusion by non-cooperative targets, electromagnetic interference, and signal interruption.

[0098] like Figure 24 As shown, the first step is to design an anti-interference method for non-cooperative targets. When the UAV visually detects that a non-cooperative target will appear on the predetermined flight path, it will activate an emergency procedure to replan its flight path and avoid the non-cooperative target.

[0099] like Figure 25 As shown, the second abnormal situation is when encountering electromagnetic interference. There are two ways to resist interference. The first is to change the flight path to avoid the interference source through signal monitoring. The second is to not change the flight path, but have another UAV that is not within the range of electromagnetic interference act as a relay station to provide signal support.

[0100] like Figure 26 As shown, the third abnormal situation is signal interruption. The anti-interference methods are: first, switch to manual or satellite link; second, use frequency hopping to switch to a more interference-resistant frequency.

[0101] Example 2 This embodiment provides a low-altitude security anti-jamming network architecture design system oriented towards communication, navigation, and surveillance capabilities, used to implement the aforementioned low-altitude security anti-jamming network architecture design method oriented towards communication, navigation, and surveillance capabilities, including: The view architecture model building module is used to systematically model the low-altitude safety network from several perspectives based on the UAF modeling language, and generate a multi-view architecture model. The SDN three-layer architecture construction module is used to construct an SDN three-layer architecture based on the multi-view architecture model. The SDN three-layer architecture includes an application plane, a control plane, and a data plane. The application plane is used for global resource management and intelligent orchestration. The control plane is used for centralized control and coordination across airspace, spacespace, and groundspace. The data plane is composed of an air-space-ground three-layer device model and is used to execute data forwarding tasks under the instructions of the control plane. The low-altitude security network overall architecture construction module is used to construct the overall architecture of the low-altitude security network based on the multi-view architecture model and the SDN three-layer architecture; the overall architecture of the low-altitude security network includes three layers: information layer, management layer and physical layer; Based on the overall architecture of the low-altitude security network, this paper analyzes the sources of communication interference in the low-altitude environment and their impact on the low-altitude security network. Based on the dynamic adjustment capability of the SDN three-layer architecture and the hierarchical coordination mechanism of the overall architecture of the low-altitude security network, anti-interference strategies are designed. The anti-interference strategies include emergency response measures when a single UAV encounters interference, and collaborative anti-interference methods when multiple UAVs encounter regional interference.

[0102] The multi-view architecture model includes a summary and overview view, a low-altitude safety network requirements view, an advanced transportation concept diagram, a transportation activity model view, a transportation rule model diagram, a transportation capacity concept view, a transportation capacity classification view, a capacity and task relationship mapping matrix view, an organization classification view, an organization relationship description view, an organization and transportation capacity relationship mapping matrix view, an equipment classification view, an equipment allocation view, and a transportation equipment and transportation capacity relationship mapping matrix view.

[0103] In summary, this application offers the following three improvements over traditional CNS architectures: ① Enhanced security. In terms of architecture design, the security of drone communication is fully considered to ensure that drones can transmit data under any circumstances, while also ensuring that the data content is not stolen.

[0104] ② Improved network efficiency. The low-altitude security network can accurately identify abnormal interference and ensure the real-time performance of communication links and the reliability of communication quality through dynamic switching methods.

[0105] ③ Anti-interference design. Anti-interference methods are designed to address complex electromagnetic interference and environmental influences in low-altitude environments, thus resolving signal quality issues.

[0106] ④ Low-cost advantage. Based on existing infrastructure, a reuse and sharing approach is adopted, and unnecessary economic burdens are reduced by optimizing the architectural layout.

[0107] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0108] This embodiment uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application; at the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. In summary, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for designing a low-altitude security anti-jamming network architecture oriented towards communication, navigation, and surveillance capabilities, characterized in that, include: S1. Based on the UAF modeling language, a systematic model of the low-altitude security network is generated from several perspectives to produce a multi-view architecture model. S2. Based on the multi-view architecture model, construct a three-layer SDN architecture; The SDN three-layer architecture includes: an application plane, a control plane, and a data plane; the application plane is used for global resource management and intelligent orchestration; the control plane is used for centralized control and coordination across airspace, spacespace, and groundspace; the data plane consists of a three-layer air-space-ground device model and is used to execute data forwarding tasks under the instructions of the control plane. S3. Based on the multi-view architecture model and the SDN three-layer architecture, construct the overall architecture of the low-altitude security network; the overall architecture of the low-altitude security network includes an information layer, a management layer, and a physical layer. S4. Based on the overall architecture of the low-altitude security network, analyze the sources of communication interference in the low-altitude environment and their impact on the low-altitude security network, and design anti-interference strategies based on the dynamic adjustment capability of the SDN three-layer architecture and the hierarchical coordination mechanism of the overall architecture of the low-altitude security network; the anti-interference strategies include emergency response measures when a single UAV encounters interference, and collaborative anti-interference methods when multiple UAVs encounter regional interference.

2. The low-altitude security anti-jamming network architecture design method for communication, navigation, and surveillance capabilities as described in claim 1, characterized in that, The control plane adopts a distributed architecture; the control plane includes a spatial logic controller, a celestial logic controller, a terrestrial network logic controller, and a master controller for cross-domain collaboration; the network devices in the data plane unify their logical functions through the OpenFlow protocol.

3. The low-altitude security anti-jamming network architecture design method for communication, navigation, and surveillance capabilities according to claim 2, characterized in that, The emergency response measures for a single UAV encountering interference specifically include: The application plane in the SDN three-layer architecture uses topology discovery to detect link status changes in real time. The control plane recalculates and issues routing decision commands, and the data plane devices execute the commands to switch the link to the satellite backup link or switch the communication frequency.

4. The low-altitude security anti-jamming network architecture design method for communication, navigation, and surveillance capabilities according to claim 3, characterized in that, The collaborative anti-interference method for multiple UAVs encountering regional interference specifically includes: By coordinating the airspace logic controller, sky logic controller, and ground network logic controller in the control plane of the SDN three-layer architecture, and by initiating a load balancing strategy through the application plane, the communication traffic in the interfered area is scheduled to the uninterrupted link, and the uninterrupted UAVs or ground station equipment in the data plane are instructed to act as relay nodes and adjust the forwarding rules.

5. The low-altitude security anti-jamming network architecture design method for communication, navigation, and surveillance capabilities according to claim 4, characterized in that, The multi-view architecture model includes a summary and overview view, a low-altitude safety network requirements view, an advanced transportation concept diagram, a transportation activity model view, a transportation rule model diagram, a transportation capacity concept view, a transportation capacity classification view, a capacity and task relationship mapping matrix view, an organization classification view, an organization relationship description view, an organization and transportation capacity relationship mapping matrix view, an equipment classification view, an equipment allocation view, and a transportation equipment and transportation capacity relationship mapping matrix view.

6. The low-altitude security anti-jamming network architecture design method for communication, navigation, and surveillance capabilities according to claim 1, characterized in that, The information layer includes communication information decision elements, navigation information decision elements, surveillance information decision elements, meteorological information decision elements, and air traffic control information decision elements, which are used for data interaction between UAVs, between UAVs and satellites, and between UAVs and the ground.

7. The low-altitude security anti-jamming network architecture design method for communication, navigation, and surveillance capabilities according to claim 1, characterized in that, The management level includes regulatory, air traffic control, and enforcement elements.

8. The low-altitude security anti-jamming network architecture design method for communication, navigation, and surveillance capabilities according to claim 1, characterized in that, The physical layer includes unmanned aerial vehicle (UAV) equipment, communication, navigation, surveillance facilities, and service facilities.

9. A low-altitude security anti-jamming network architecture design system oriented towards communication, navigation, and surveillance capabilities, used to implement the low-altitude security anti-jamming network architecture design method oriented towards communication, navigation, and surveillance capabilities as described in any one of claims 1-8, characterized in that, include: The view architecture model building module is used to systematically model the low-altitude safety network from several perspectives based on the UAF modeling language, and generate a multi-view architecture model. The SDN three-layer architecture building module is used to build an SDN three-layer architecture based on the multi-view architecture model. The SDN three-layer architecture includes: an application plane, a control plane, and a data plane; the application plane is used for global resource management and intelligent orchestration; the control plane is used for centralized control and coordination across airspace, spacespace, and groundspace; the data plane consists of a three-layer air-space-ground device model and is used to execute data forwarding tasks under the instructions of the control plane. The low-altitude security network overall architecture construction module is used to construct the overall architecture of the low-altitude security network based on the multi-view architecture model and the SDN three-layer architecture; the overall architecture of the low-altitude security network includes three layers: information layer, management layer and physical layer; Based on the overall architecture of the low-altitude security network, this paper analyzes the sources of communication interference in the low-altitude environment and their impact on the low-altitude security network. Based on the dynamic adjustment capability of the SDN three-layer architecture and the hierarchical coordination mechanism of the overall architecture of the low-altitude security network, anti-interference strategies are designed. The anti-interference strategies include emergency response measures when a single UAV encounters interference, and collaborative anti-interference methods when multiple UAVs encounter regional interference.

10. The low-altitude security anti-jamming network architecture design system for communication, navigation, and surveillance capabilities as described in claim 9, characterized in that, The multi-view architecture model includes a summary and overview view, a low-altitude safety network requirements view, an advanced transportation concept diagram, a transportation activity model view, a transportation rule model diagram, a transportation capacity concept view, a transportation capacity classification view, a capacity and task relationship mapping matrix view, an organization classification view, an organization relationship description view, an organization and transportation capacity relationship mapping matrix view, an equipment classification view, an equipment allocation view, and a transportation equipment and transportation capacity relationship mapping matrix view.

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