A high-dynamic large-scale directional networking simulation system and method

Abstract

The application discloses a high-dynamic large-scale directional networking simulation system and method, which comprises a guide and regulation subsystem, a time system subsystem, a general excitation subsystem, an efficiency evaluation subsystem, a multi-node simulation subsystem and external physical nodes; the multi-node simulation subsystem comprises a plurality of general networking modules and member exchange devices; the external physical nodes comprise a plurality of networking devices and corresponding connected directional networking antennas. The method comprises the following steps: the guide and regulation subsystem generates a task file and uniformly issues a time system; the general excitation subsystem issues an antenna pointing direction, a frequency hopping pattern and service data in advance by one time slot; a digital exchange device completes intra-cluster, inter-cluster and virtual-real data exchange; and the efficiency evaluation subsystem collects and outputs network efficiency in real time. The application adopts digital exchange to replace a traditional radio frequency matrix, significantly reduces the cost, improves the system reliability and expandability, can truly reproduce an aerospace high-dynamic directional networking scene in a laboratory, and provides an efficient verification platform for related protocol, algorithm and chip research and development.

Description

Technical Field

[0001] This invention relates to the field of communication networking technology, and in particular to a highly dynamic large-scale directional networking simulation system. Background Technology

[0002] With the rapid development of technologies such as the Internet of Things (IoT), 5G communication, artificial intelligence (AI), and wireless ad hoc networks, the number of network-connected devices is growing exponentially. This not only requires networks to support massive device access but also places higher demands on network flexibility, scalability, efficiency, and security. Simultaneously, with the rapid development of fields such as aviation, the flight speed and acceleration of air vehicles are increasing, posing a significant challenge to communication networking. In recent years, directional antennas, represented by phased arrays, have become a core means of communication in complex environments due to their strong anti-interference performance, high spectral efficiency, and good concealment, serving as an important tool for improving the security and performance of communication networks.

[0003] However, achieving realistic testing conditions in highly dynamic, large-scale directional networking inevitably consumes significant human, material, and financial resources. But a semi-physical networking simulator can solve most of the problems encountered before real networking experiments, greatly reducing the consumption of human, material, and financial resources. Currently, although some simulation systems have been applied in specific fields, simulation systems for highly dynamic, large-scale directional networking still face many technical bottlenecks.

[0004] Especially in directional communication systems operating in highly dynamic environments, the speed and acceleration of communication nodes significantly impact signal propagation and pointing calculations. Traditional static or low-dynamic simulation methods struggle to accurately reflect the performance of real-world communication systems. Furthermore, large-scale directional networking systems involve the collaborative work of massive numbers of nodes, requiring complex calculations and data exchanges to be completed within short timeframes. This places extremely high demands on the system's computational power and real-time performance. Due to the complexity of highly dynamic and directional networking systems, there is currently no directional networking simulation system that simultaneously meets the requirements of high dynamism, large scale, and high accuracy. Existing solutions often only achieve partial functionality in certain specific scenarios, failing to fully meet the needs of real-world applications.

[0005] Therefore, there is an urgent need for a networking simulation system that can simultaneously support highly dynamic environments, large-scale node networking, and directional communication simulation. This system needs to possess powerful computing capabilities, flexible scalability, and efficient real-time processing capabilities, enabling it to realistically simulate the operating state of actual communication systems in a laboratory environment, providing strong support for the research and testing of related technologies. Summary of the Invention

[0006] To address the aforementioned issues, this invention provides a highly dynamic, large-scale directional networking simulation system and method that simultaneously supports highly dynamic environments, large-scale node networking, and directional communication simulation. The system possesses powerful computing capabilities, flexible scalability, and efficient real-time processing capabilities, enabling it to realistically simulate the operational state of actual communication systems in a laboratory environment, thus meeting the needs of related technology research and development and testing.

[0007] This invention provides a highly dynamic, large-scale directional networking simulation system, the specific technical solution of which is as follows:

[0008] It includes a guidance and control subsystem, a time tracking subsystem, a general incentive subsystem, a performance evaluation subsystem, a multi-node simulation subsystem, and external physical nodes;

[0009] The general incentive subsystem is connected to the guidance and control subsystem;

[0010] The time synchronization subsystem is connected to the guidance subsystem, the general incentive subsystem, the performance evaluation subsystem, the multi-node simulation subsystem, and external physical nodes, respectively, to provide a common time reference.

[0011] The multi-node simulation subsystem includes several general networking modules and member switching devices;

[0012] The performance evaluation subsystem is connected to the member exchange equipment;

[0013] The external physical node includes several networking devices and corresponding connected directional networking antennas;

[0014] The multi-node simulation subsystem is connected to the general incentive subsystem, the performance evaluation subsystem, and the external physical node network, respectively.

[0015] Furthermore, the member switching equipment includes primary member switching equipment and secondary member switching equipment;

[0016] The secondary member switching device is connected to at least two of the primary member switching devices.

[0017] Furthermore, the general networking module and member switching equipment are connected to the external physical node via an Ethernet switch and an interface conversion module;

[0018] The secondary member switching device is also connected to an antenna module via an RS485 interface, and is connected to the external physical node via the antenna module.

[0019] Furthermore, the multi-node simulation subsystem includes eight chassis, each chassis being equipped with 12 of the general networking modules;

[0020] Each of the chassis is connected to a primary member switching device, and the primary member switching devices of the eight chassis are connected to the same secondary member switching device.

[0021] This invention also discloses a high-dynamic large-scale directional networking simulation method, based on the aforementioned high-dynamic large-scale directional networking simulation system, the method comprising:

[0022] S1: The command and control subsystem generates network task files and configures scenario parameters, while the time statistics subsystem distributes the common time reference to the entire network;

[0023] S2: The general excitation subsystem, based on the common time reference, sends communication parameters to the multi-node simulation subsystem and external physical nodes;

[0024] S3: Based on the received communication parameters, the multi-node analog subsystem completes intra-cluster digital baseband frame switching in the first-level member switching equipment and inter-cluster and inter-virtual-physical node digital baseband frame switching in the second-level member switching equipment, forming a highly dynamic directional network.

[0025] S4: The performance evaluation subsystem collects network connectivity, communication latency, and throughput in real time, calculates the collaborative performance evaluation results, and outputs network simulation results data and performance evaluation reports.

[0026] Furthermore, in step S2, before the start of each time slot, the general networking module sends the antenna pointing information, frequency hopping pattern and service data required for that time slot one time slot in advance.

[0027] Furthermore, in step S3, the communication parameters include at least the inertial navigation data and excitation data of each node.

[0028] Further, step S3, the specific process is as follows:

[0029] S301: The general networking module generates digital baseband frames carrying time slot numbers from the received communication parameters and sends them to the first-level member switching equipment;

[0030] S302: The primary member switching device executes the judgment logic based on the destination address in the frame header:

[0031] If the destination node is located in this cluster, the switching is completed directly and the data is sent to the target general networking module. If the destination node is located in another cluster or is an external physical node, the data is forwarded to the secondary member switching device.

[0032] S303: After receiving the forwarded data, the secondary member switching device forwards the frame to the primary member switching device or antenna module corresponding to the target cluster. After modulation and demodulation by the antenna module, it is sent to the external physical node.

[0033] S304: The secondary member switching device completes all frame forwarding before the start of the next time slot and sends the switching results back to the performance evaluation subsystem.

[0034] The beneficial effects of this invention are as follows:

[0035] 1. This invention realizes large-scale communication node networking simulation based on directional antennas through guidance, timing, general excitation, two-level digital switching, and virtual-real fusion. It supports network access in all states from static to high dynamic, and has flexible scalability and efficient real-time processing capabilities. By adopting a fully digital switching method, it greatly simplifies the physical layer equipment, reduces costs, and improves the reliability and maintainability of the system. It solves the problems of high cost, low dynamic range, and inability to network virtual and real devices together in traditional radio frequency matrix solutions.

[0036] 2. The multi-node simulation subsystem of the present invention includes several general networking modules and member switching devices. The member switching devices include primary member switching devices and secondary member switching devices. Through the all-digital baseband frame switching architecture composed of primary and secondary member switching devices, the real-time switching bottleneck when a large number of nodes access the system at the same time is solved.

[0037] 3. This invention provides a common time reference through a time synchronization system, realizing precise synchronization of virtual and physical node beam pointing, frequency hopping patterns and service data one time slot in advance, eliminating clock drift mismatch in high dynamic scenarios; at the same time, the system realizes plug-and-play functionality with zero modification to external physical nodes through antenna modules and virtual-physical mapping. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the system framework structure of the present invention.

[0039] Figure 2 This is a schematic diagram of the system configuration and connection of the present invention.

[0040] Figure 3 This is a schematic diagram showing the connection relationship between the various parts of the system of the present invention.

[0041] Figure 4 This is a schematic diagram of the software deployment architecture of the multi-node simulation subsystem of the present invention.

[0042] Figure 5 This is a schematic diagram of the method flow of the present invention.

[0043] Figure 6 This is a schematic diagram of the system operation flow of digital baseband frame switching according to the present invention.

[0044] Figure 7 This is a schematic diagram of the hardware resource framework structure for first-level member exchange in this invention.

[0045] Figure 8This is a schematic diagram of the hardware resource framework structure for secondary member exchange in this invention. Detailed Implementation

[0046] The technical solutions in the embodiments of the present invention are clearly and completely described in the following description. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0047] In the description of the embodiments of the present invention, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use, or the orientation or positional relationship in which those skilled in the art conventionally understand it during use. This is only for the convenience of describing the present invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0049] Example 1

[0050] Embodiment 1 of the present invention discloses a high-dynamic large-scale directional networking simulation system, such as Figure 1 , Figure 2 and Figure 3 As shown;

[0051] The system includes a guidance and control subsystem, a timing and statistics subsystem, a general incentive subsystem, a performance evaluation subsystem, a multi-node simulation subsystem, and external physical nodes;

[0052] The general excitation subsystem is connected to the command and control subsystem and is used to send communication parameters to the multi-node simulation subsystem and external physical nodes according to a common time reference and at a set update frequency.

[0053] The communication parameters include at least the inertial navigation data and excitation data of each node.

[0054] The command and control subsystem is used to generate and output networking task files;

[0055] The networking task file shall include at least the number of nodes, network topology, dynamic movement trajectory of each node, and directional antenna parameters of each communication node.

[0056] The time synchronization subsystem is connected to the guidance and control subsystem, the general excitation subsystem, the performance evaluation subsystem, the multi-node simulation subsystem, and the external physical node, respectively, and is used to provide a common time reference within the allowable error range (≤50 ns) to the guidance and control subsystem, the general excitation subsystem, the multi-node simulation subsystem, and the external physical node.

[0057] The multi-node simulation subsystem includes several general networking modules and member switching devices;

[0058] In this embodiment, the member switching device includes a primary member switching device and a secondary member switching device;

[0059] The secondary member switching device is connected to at least two of the primary member switching devices;

[0060] Specifically, the primary member switching device is used to realize the switching of digital baseband frames between nodes within the same cluster;

[0061] The secondary member switching device is used to realize digital baseband frame switching between clusters and between virtual nodes and external physical nodes.

[0062] Specifically, the time synchronization subsystem and the secondary member exchange equipment of the multi-node simulation subsystem are connected via the IRIG-B interface.

[0063] In a preferred embodiment, the general networking module and member switching equipment are connected to the external physical node via an Ethernet switch and an interface conversion module.

[0064] The secondary member switching device is also connected to an antenna module via an RS485 interface, and is connected to the external physical node via the antenna module.

[0065] In a preferred embodiment, the multi-node simulation subsystem includes eight chassis, each chassis corresponding to simulate a cluster intranet, and each chassis is equipped with 12 of the general networking modules to form an 8×12 two-level stacked network topology, which can support a maximum of 96 nodes in the network simulation.

[0066] Each of the aforementioned chassis is connected to a primary member switching device to enable digital baseband frame switching among the 12 nodes within the cluster. The primary member switching devices of the eight chassis are connected to the same secondary member switching device to enable digital baseband frame switching between clusters and between virtual and physical nodes.

[0067] Specifically, the primary member switching devices and the secondary member switching devices are interconnected by a high-speed backplane bus, which is selected from Ethernet 100 Gbps or PCIe Gen4 x16 to ensure that the inter-cluster switching latency is <200 ns.

[0068] Specifically, each general networking module is used to dynamically load the actual protocol stack based on reconfigurable logical resources, and generate, receive or forward digital baseband frames in a fully digital switching manner.

[0069] like Figure 4 As shown, the general networking module is equipped with protocol processing software; each primary member switching device is equipped with intra-cluster node switching control software and intra-cluster node switching processing software; and each secondary member switching device is equipped with inter-cluster node switching control software and inter-cluster node switching processing software. Through these deployed software programs, the intra-cluster digital baseband frame switching process and the inter-cluster and virtual / physical node digital baseband frame switching processes described in Embodiment 2 are controlled and executed.

[0070] The performance evaluation subsystem is connected to the member exchange equipment;

[0071] Specifically, the performance evaluation subsystem embeds measurement probes in the switching chips of primary member switching devices and / or secondary member switching devices to collect network connectivity, communication latency, throughput in real time and output collaborative performance evaluation results.

[0072] The external physical node includes several networking devices and corresponding connected directional networking antennas;

[0073] The multi-node simulation subsystem is connected to the general incentive subsystem, the performance evaluation subsystem, and the external physical node network, respectively.

[0074] Example 2

[0075] Embodiment 2 of the present invention discloses a high-dynamic large-scale directional networking simulation method, based on the high-dynamic large-scale directional networking simulation system described in Embodiment 1 above, such as... Figure 5 As shown, the details are as follows:

[0076] S1: The command and control subsystem generates network task files and configures scenario parameters, while the time statistics subsystem distributes the common time reference to the entire network;

[0077] S2: The general excitation subsystem, based on the common time reference, sends communication parameters to the multi-node simulation subsystem and external physical nodes;

[0078] In a preferred embodiment, in step S2, before the start of each time slot, the general networking module sends the antenna pointing information, frequency hopping pattern and service data required for that time slot one time slot in advance;

[0079] S3: Based on the received communication parameters, the multi-node analog subsystem completes intra-cluster digital baseband frame switching in the first-level member switching equipment and inter-cluster and inter-virtual-physical node digital baseband frame switching in the second-level member switching equipment, forming a highly dynamic directional network.

[0080] Specifically, the communication parameters include at least the inertial navigation data and excitation data of each node;

[0081] like Figure 6 , Figure 7 and Figure 8 As shown, the intra-cluster and inter-cluster digital baseband frame switching process is as follows:

[0082] S301: The general networking module generates digital baseband frames carrying time slot numbers from the received communication parameters and sends them to the first-level member switching equipment;

[0083] S302: The primary member switching device executes the judgment logic based on the destination address in the frame header:

[0084] If the destination node is located in this cluster, the switching is completed directly and the data is sent to the target general networking module. If the destination node is located in another cluster or is an external physical node, the data is forwarded to the secondary member switching device.

[0085] S303: After receiving the forwarded data, the secondary member switching device forwards the frame to the primary member switching device or antenna module corresponding to the target cluster. After modulation and demodulation by the antenna module, it is sent to the external physical node.

[0086] S304: The secondary member switching device completes all frame forwarding before the start of the next time slot and sends the switching results back to the performance evaluation subsystem.

[0087] Combination Figure 7 and Figure 8 The figures shown are the hardware resource structure diagrams for first-level member switching and second-level member switching, respectively.

[0088] S4: The performance evaluation subsystem collects network connectivity, communication latency, and throughput in real time, calculates the collaborative performance evaluation results, and outputs network simulation results data and performance evaluation reports.

[0089] This invention is not limited to the specific embodiments described above. The invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A high-dynamic, large-scale directional networking simulation system, characterized in that, It includes a guidance and control subsystem, a time tracking subsystem, a general incentive subsystem, a performance evaluation subsystem, a multi-node simulation subsystem, and external physical nodes; The general-purpose excitation subsystem is connected to the instruction subsystem; the general-purpose excitation subsystem is used to send communication parameters to the multi-node simulation subsystem and external physical nodes. The command and control subsystem is used to generate network task files and configure scenario parameters; The time synchronization subsystem is connected to the guidance subsystem, the general incentive subsystem, the performance evaluation subsystem, the multi-node simulation subsystem, and external physical nodes, respectively, to provide a common time reference. The multi-node analog subsystem includes several general networking modules and member switching devices, which are used to complete intra-cluster digital baseband frame switching and inter-cluster and virtual-physical node digital baseband frame switching based on the received communication parameters, forming a highly dynamic directional network. The performance evaluation subsystem is connected to the member switching equipment, collects network connectivity, communication latency, and throughput in real time, calculates the collaborative performance evaluation results, and outputs network simulation result data and performance evaluation report. The external physical node includes several networking devices and corresponding connected directional networking antennas; The multi-node simulation subsystem is connected to the general incentive subsystem, the performance evaluation subsystem, and the external physical node network, respectively.

2. The high-dynamic large-scale directional networking simulation system according to claim 1, characterized in that, The member switching equipment includes primary member switching equipment and secondary member switching equipment; The secondary member switching device is connected to at least two of the primary member switching devices.

3. The high-dynamic large-scale directional networking simulation system according to claim 2, characterized in that, The general networking module and member switching equipment are connected to the external physical node via an Ethernet switch and an interface conversion module. The secondary member switching device is also connected to an antenna module via an RS485 interface, and is connected to the external physical node via the antenna module.

4. The high-dynamic large-scale directional networking simulation system according to claim 3, characterized in that, The multi-node simulation subsystem includes eight chassis, each chassis being equipped with 12 of the general networking modules; Each of the chassis is connected to a primary member switching device, and the primary member switching devices of the eight chassis are connected to the same secondary member switching device.

5. A high-dynamic, large-scale directional networking simulation method, characterized in that, Based on the high dynamic large-scale directional networking simulation system according to any one of claims 1-4, the method includes: S1: The command and control subsystem generates network task files and configures scenario parameters, while the time statistics subsystem distributes the common time reference to the entire network; S2: The general excitation subsystem, based on the common time reference, sends communication parameters to the multi-node simulation subsystem and external physical nodes; S3: Based on the received communication parameters, the multi-node analog subsystem completes intra-cluster digital baseband frame switching in the first-level member switching equipment and inter-cluster and inter-virtual-physical node digital baseband frame switching in the second-level member switching equipment, forming a highly dynamic directional network. S4: The performance evaluation subsystem collects network connectivity, communication latency, and throughput in real time, calculates the collaborative performance evaluation results, and outputs network simulation results data and performance evaluation reports.

6. The high-dynamic large-scale directional networking simulation method according to claim 5, characterized in that, In step S2, before the start of each time slot, the general networking module sends the antenna pointing information, frequency hopping pattern and service data required for that time slot one time slot in advance.

7. The high-dynamic large-scale directional networking simulation method according to claim 5, characterized in that, In step S3, the communication parameters include at least the inertial navigation data and excitation data of each node.

8. The high-dynamic large-scale directional networking simulation method according to claim 5, characterized in that, Step S3, the specific process is as follows: S301: The general networking module generates digital baseband frames carrying time slot numbers from the received communication parameters and sends them to the first-level member switching equipment; S302: The primary member switching device executes the judgment logic based on the destination address in the frame header: If the destination node is located in this cluster, the switching is completed directly and the data is sent to the target general networking module. If the destination node is located in another cluster or is an external physical node, the data is forwarded to the secondary member switching device. S303: After receiving the forwarded data, the secondary member switching device forwards the frame to the primary member switching device or antenna module corresponding to the target cluster. After modulation and demodulation by the antenna module, it is sent to the external physical node. S304: The secondary member switching device completes all frame forwarding before the start of the next time slot and sends the switching results back to the performance evaluation subsystem.

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