Arrow-ground integrated whole network monitoring system

Abstract

A rocket-ground integrated whole-network monitoring system adopts a layered network architecture based on fusion of a real-time network and an Ethernet, breaks through a rocket-ground communication segmentation interface, realizes data communication integration, and enables a rear-end network monitoring unit to obtain network data of a ground test launch control network and also to obtain network data of the ground test launch control network due to the network integration design. And the network data on the rocket can be acquired, so that the monitoring of the rocket-ground integrated network is realized. The system disclosed by the invention can be used for capturing, analyzing and analyzing various protocol data such as UDP, TCP, TTE and the like, monitoring various protocol data traffic of the whole network in real time, and realizing data bidirectional monitoring and packet capturing functions of an on-rocket ground integrated network. The problems that an existing carrier rocket can only conduct network monitoring on ground test launch control equipment, the network state on the rocket cannot be obtained, and rocket and ground network segmentation is achieved are effectively solved.

Description

Technical Field

[0001] This invention relates to an integrated ground-to-air network monitoring system, belonging to the field of electrical system data transmission and communication. Background Technology

[0002] With the development of launch vehicle test and launch control technology, the connection between the rocket and the ground network is becoming increasingly close. Establishing a communication link between the rocket and the ground network, a high-speed, reliable integrated rocket-ground network can enable rapid data transmission and processing between the rocket and the ground, reducing pre-launch test time and procedures, improving launch efficiency, and meeting the ever-increasing launch demands. Therefore, integrated rocket-ground network is an inevitable trend for future launch vehicle test and launch control.

[0003] The rocket-to-ground network is the "nerve center" for data transmission and command interaction during rocket launch. Network failures (such as data packet loss, communication interruptions, or equipment malfunctions) can lead to loss of rocket attitude control, failure of parameter monitoring, or incorrect command execution. By monitoring network status in real time (e.g., link bandwidth, equipment operating temperature, data transmission latency), potential risks (such as hardware aging or link congestion) can be detected early, allowing for timely troubleshooting and ensuring stable communication throughout the entire launch process.

[0004] Through a systematic review and analysis of relevant domestic and international literature, the following problems were found in the existing monitoring of launch vehicle communication networks: Incomplete data parsing and display: Due to limitations in bus and application protocols, the real-time data sent, transmitted, and received by each node is often not intuitive or complete; the onboard and ground networks are fragmented, failing to fully reflect the system's operational status; Reliance on post-event manual interpretation: When abnormal states occur during data transmission and obvious anomalies or serious faults appear, test and experimental analysis often relies on post-event manual interpretation of the original test data, which is insufficient for launch vehicle network monitoring with real-time requirements; Inadequate comprehensiveness of topology visualization: Complex network topologies may be difficult to visualize, resulting in inaccurate node connection relationships and chaotic link displays. Summary of the Invention

[0005] The technical problem solved by this invention is to overcome the shortcomings of the prior art and provide an integrated rocket-ground network monitoring system that can monitor the entire network on and off the launch vehicle.

[0006] The technical solution of this invention is:

[0007] A rocket-ground integrated network monitoring system, wherein the rocket-ground integrated network monitoring system adopts a layered communication architecture, including: rocket-mounted network and ground measurement, launch and control network;

[0008] The onboard network includes several onboard real-time network switching master nodes and several onboard terminal nodes; the ground-based measurement, launch, and control network includes a ground-based front-end network and a ground-based back-end network; the ground-based front-end network includes a ground-based front-end Ethernet master node and ground-based front-end equipment terminals; the ground-based back-end network includes a ground-based back-end Ethernet master node and ground-based back-end equipment terminals; the onboard network and the ground-based measurement, launch, and control network are connected through two onboard-to-ground communication switching master nodes set in the ground-based front-end network to achieve network communication between the onboard and ground-based networks; that is, the onboard-to-ground communication switching master node forwards all onboard-to-ground test data collected by the onboard network to the ground-based front-end Ethernet master node and the ground-based back-end Ethernet master node in the ground-based measurement, launch, and control network;

[0009] The ground backend network is also equipped with a network monitoring unit and a high-speed network data packet acquisition device; the high-speed network data packet acquisition device is connected to the ground frontend Ethernet master node and the ground backend Ethernet master node, and acquires and stores all the rocket-to-ground test data of the rocket network sent by the rocket-to-ground communication exchange master node through mirroring;

[0010] On the one hand, the network monitoring unit captures, parses, and displays all the test data of the rocket-borne network collected by the high-speed network data packet acquisition device. On the other hand, it can actively obtain network management data of all master nodes in the ground measurement and control network based on SNMP and syslog, including switch operating status and logs.

[0011] Furthermore, the on-board network supports data transmission using two network protocols: the TTE network protocol and the ordinary Ethernet protocol. The on-board test data includes critical business data and ordinary test data. Critical business data with high real-time requirements adopts the TT frame format and is transmitted between on-board nodes via the TTE network protocol. The critical business data includes command issuance between on-board nodes, interactive data between on-board nodes, and status information of the on-board real-time network exchange master node and on-board nodes.

[0012] The Arrow Real-Time Network Switching Master Node also provides a standard Ethernet physical interface. Through the ordinary Ethernet protocol, it converts critical business data into BE frame format via the Arrow Real-Time Network Switching Master Node and transmits it to the Arrow Ground Communication Switching Master Node in the form of switch mirroring.

[0013] For general test data of the Arrow Network, the BE frame format is used to avoid affecting the transmission of critical business data. The general test data is transmitted to the Arrow-ground communication main node through the general Ethernet protocol and in the same way as switch mirroring. The general test data includes switch operating status, device operating status, switch port traffic, and port occupancy rate.

[0014] The arrow-to-ground communication switching master node receives arrow-to-ground test data in BE frame format via ordinary Ethernet protocol and sends it to the ground front-end Ethernet master node, and then sends it to the ground back-end Ethernet master node via fiber optic link; the ground back-end Ethernet master node distributes the test data in BE frame format to the corresponding ground back-end equipment terminals.

[0015] Furthermore, the network monitoring unit's software architecture includes a five-layer design:

[0016] Access layer: Adopting a unified architecture, unified protocol, and unified interface, it is responsible for data access;

[0017] Protocol adaptation layer: Provides comprehensive management and push of internal and external protocols, ensures the adaptation of internal and external protocols, and provides a unified data scheduling and management protocol for external application systems;

[0018] Transport layer: Uses UDP protocol for data transmission, and supports data conversion and on-demand configuration of IP addresses and ports;

[0019] Database layer: Responsible for data processing, aggregation, fusion and search, realizing unified data management, and solving data latency problems through a distributed message middleware mechanism;

[0020] Application layer: Presents network monitoring information in a graphical and visual manner, including network topology, device monitoring, alarm monitoring, and statistical analysis.

[0021] Furthermore, the network monitoring unit is equipped with a software interface with the high-speed network data packet acquisition device, which displays the data packet information acquired by the high-speed network data packet acquisition device on the monitoring interface. When an abnormality occurs, the fault alarm and detailed prompts will be displayed on the monitoring interface.

[0022] The high-speed network data packet acquisition device enables data packet capture, path analysis, and data packet classification and retrieval.

[0023] Furthermore, the abnormal status specifically includes: abnormal operation status of the switch or equipment in the ground test data, and abnormal operation status of the switch of the master node in the ground measurement and control network actively obtained based on SNMP and syslog.

[0024] Furthermore, TT frame format data in the Arrow Network has high priority, while BE frame format data has low priority. BE frame format data is transmitted using the remaining bandwidth of the Arrow Network and will not interfere with or affect the high-priority data transmission of the Arrow Network.

[0025] Furthermore, the status information of the real-time network switching master node and the terminal node of the arrow network adopts the TT frame format, which is converted into the BE frame format (i.e., ordinary Ethernet data A) by the real-time network switching master node of the arrow and transmitted to the arrow-to-ground communication switching master node.

[0026] Simultaneously, the onboard real-time network exchange master node captures packets of ordinary test data on the rocket, obtaining ordinary Ethernet data B. The above two parts of network monitoring data, namely ordinary Ethernet data A and B, are transmitted to the ground front-end Ethernet master node via the rocket-to-ground communication exchange master node, mirroring and acquiring bidirectional communication data between the rocket and the ground, thereby realizing the monitoring of equipment status, network status, and network data traffic on the rocket network.

[0027] Furthermore, the ground front-end network captures network data packets through the ground front-end Ethernet master node via switch port mirroring, that is, each data packet received and sent after being processed by the ground front-end Ethernet master node; among them, a separate pair of ground front-end Ethernet master nodes are set up to connect to the arrow-to-ground communication switching master node, and respectively connect to the arrow-on-the-air network to obtain the arrow-to-ground test data collected by the arrow-to-ground communication switching master node.

[0028] The advantages of this invention compared to the prior art are:

[0029] (1) This invention constructs a global network topology for the integrated onboard and ground network of the launch vehicle system, and gathers real data information of the entire integrated onboard and ground network during the test, which is used for processing and distribution, real-time data monitoring, real-time alarm, network monitoring and other functions.

[0030] (2) This invention uses high-speed network data packet acquisition equipment and network monitoring equipment to greatly improve packet capture performance, unpacking capability, query speed, analysis and processing efficiency, etc. It can capture, parse and analyze data of various protocols such as UDP, TCP, TTE, etc., and monitor the data traffic of various protocols across the entire network in real time, so as to realize bidirectional monitoring and packet capture functions of the integrated network on the rocket and the ground.

[0031] (3) This invention can effectively reduce operation and maintenance costs and management difficulty, ensure the normal, continuous and stable operation of the network for a long time, improve network operation efficiency, and provide technical support and guarantee for the efficient operation of the launch vehicle data transmission communication system and the integrated network monitoring of the rocket and ground. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the architecture of an integrated ground-based monitoring system.

[0033] Figure 2 A schematic diagram of the software architecture of the integrated ground-based monitoring platform.

[0034] Figure 3This is an information flow diagram of the integrated monitoring platform for the entire network. Detailed Implementation

[0035] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings.

[0036] This invention provides an integrated rocket-ground network monitoring system. Based on a hierarchical network architecture for launch vehicle telemetry, tracking, and command (TT&C) communication, which integrates real-time network and Ethernet, it breaks down the separation between onboard and ground communication, connecting the rocket's onboard and ground networks to achieve integrated data communication. Due to the integrated network design, the backend network monitoring unit can acquire network data from both the ground TT&C network and the onboard network, thus enabling monitoring of the integrated rocket-ground network. Furthermore, the system can capture, parse, and analyze data from various protocols such as UDP, TCP, and TTE, monitoring the data traffic of various protocols across the entire network in real time, achieving bidirectional monitoring and packet capture of the integrated rocket-ground network. This invention effectively solves the problems of existing launch vehicles only being able to monitor ground TT&C equipment but not the onboard network status, and the separation of rocket and ground networks.

[0037] like Figure 1 As shown, the present invention proposes an integrated rocket-ground network monitoring system, which adopts a layered communication architecture, including: rocket-mounted network and ground-based telemetry and control network;

[0038] The onboard network includes several onboard real-time network switching master nodes and several onboard terminal nodes; the ground-based measurement, launch, and control network includes a ground-based front-end network and a ground-based back-end network; the ground-based front-end network includes a ground-based front-end Ethernet master node and ground-based front-end equipment terminals; the ground-based back-end network includes a ground-based back-end Ethernet master node and ground-based back-end equipment terminals; the onboard network and the ground-based measurement, launch, and control network are connected through two onboard-to-ground communication switching master nodes set in the ground-based front-end network to achieve network communication between the onboard and ground-based networks; that is, the onboard-to-ground communication switching master node forwards all onboard-to-ground test data collected by the onboard network to the ground-based front-end Ethernet master node and the ground-based back-end Ethernet master node in the ground-based measurement, launch, and control network;

[0039] The ground backend network is also equipped with a network monitoring unit and a high-speed network data packet acquisition device; the high-speed network data packet acquisition device is connected to the ground frontend Ethernet master node and the ground backend Ethernet master node, and acquires and stores all the rocket-to-ground test data of the rocket network sent by the rocket-to-ground communication exchange master node through mirroring;

[0040] On the one hand, the network monitoring unit captures, parses, and displays all the test data of the rocket-borne network collected by the high-speed network data packet acquisition device. On the other hand, it can actively obtain network management data of all master nodes in the ground measurement and control network based on SNMP and syslog, including switch operating status and logs.

[0041] Furthermore, the on-board network supports data transmission using two network protocols: the TTE network protocol and the ordinary Ethernet protocol. The on-board test data includes critical business data and ordinary test data. Critical business data with high real-time requirements adopts the TT frame format and is transmitted between on-board nodes via the TTE network protocol. The critical business data includes command issuance between on-board nodes, interactive data between on-board nodes, and status information of the on-board real-time network exchange master node and on-board nodes.

[0042] The Arrow Real-Time Network Switching Master Node also provides a standard Ethernet physical interface. Through the ordinary Ethernet protocol, it converts critical business data into BE frame format via the Arrow Real-Time Network Switching Master Node and transmits it to the Arrow Ground Communication Switching Master Node in the form of switch mirroring.

[0043] For general test data of the Arrow Network, the BE frame format is used to avoid affecting the transmission of critical business data. The general test data is transmitted to the Arrow-ground communication main node through the general Ethernet protocol and in the same way as switch mirroring. The general test data includes switch operating status, device operating status, switch port traffic, and port occupancy rate.

[0044] The arrow-to-ground communication switching master node receives arrow-to-ground test data in BE frame format via ordinary Ethernet protocol and sends it to the ground front-end Ethernet master node, and then sends it to the ground back-end Ethernet master node via fiber optic link; the ground back-end Ethernet master node distributes the test data in BE frame format to the corresponding ground back-end equipment terminals.

[0045] The network monitoring unit receives data from two sources: first, ground test data collected by high-speed network packet acquisition equipment; and second, network management data (switch operating status and logs) obtained from switches in the ground-based measurement and control network via SNMP and syslog. The network monitoring unit can display data frames on the interface. By parsing these data frames, it obtains network status, device status, port traffic, port occupancy, and other data. This data, combined with the switch's own network management data (device operating status and logs), is integrated and analyzed to provide a clear and intuitive view of the network topology.

[0046] like Figure 2 and Figure 3 As shown, the software architecture of the network monitoring unit includes a five-layer design:

[0047] Access layer: Adopting a unified architecture, unified protocol, and unified interface, it is responsible for data access;

[0048] Protocol adaptation layer: Provides comprehensive management and push of internal and external protocols, ensures the adaptation of internal and external protocols, and provides a unified data scheduling and management protocol for external application systems;

[0049] Transport layer: Uses UDP protocol for data transmission, and supports data conversion and on-demand configuration of IP addresses and ports;

[0050] Database layer: Responsible for data processing, aggregation, fusion and search, realizing unified data management, and solving data latency problems through a distributed message middleware mechanism;

[0051] Application layer: Presents network monitoring information in a graphical and visual manner, including network topology, device monitoring, alarm monitoring, and statistical analysis.

[0052] Furthermore, the network monitoring unit is equipped with a software interface with the high-speed network data packet acquisition device, which displays the data packet information acquired by the high-speed network data packet acquisition device on the monitoring interface. When an abnormality occurs, the fault alarm and detailed prompts will be displayed on the monitoring interface.

[0053] The high-speed network data packet acquisition device enables data packet capture, path analysis, and data packet classification and retrieval.

[0054] Furthermore, the abnormal status specifically includes: abnormal operation status of the switch or equipment in the ground test data, and abnormal operation status of the switch of the master node in the ground measurement and control network actively obtained based on SNMP and syslog.

[0055] Furthermore, TT frame format data in the Arrow Network has high priority, while BE frame format data has low priority. BE frame format data is transmitted using the remaining bandwidth of the Arrow Network and will not interfere with or affect the high-priority data transmission of the Arrow Network.

[0056] Furthermore, the status information of the real-time network switching master node and the terminal node of the arrow network adopts the TT frame format, which is converted into the BE frame format (i.e., ordinary Ethernet data A) by the real-time network switching master node of the arrow and transmitted to the arrow-to-ground communication switching master node.

[0057] Simultaneously, the onboard real-time network exchange master node captures packets of ordinary test data on the rocket, obtaining ordinary Ethernet data B. The above two parts of network monitoring data, namely ordinary Ethernet data A and B, are transmitted to the ground front-end Ethernet master node via the rocket-to-ground communication exchange master node, mirroring and acquiring bidirectional communication data between the rocket and the ground, thereby realizing the monitoring of equipment status, network status, and network data traffic on the rocket network.

[0058] Furthermore, the ground front-end network captures network data packets through the ground front-end Ethernet master node via switch port mirroring, that is, each data packet received and sent after being processed by the ground front-end Ethernet master node; among them, a separate pair of ground front-end Ethernet master nodes are set up to connect to the arrow-to-ground communication switching master node, and respectively connect to the arrow-on-the-air network to obtain the arrow-to-ground test data collected by the arrow-to-ground communication switching master node.

[0059] Example:

[0060] The integrated rocket-ground network monitoring platform comprises an onboard network and a ground-based measurement, control, and launch network (front-end ground network and back-end ground network). By designing a layered architecture for the integrated rocket-ground network, the onboard and ground networks are interconnected, allowing various test data to reach the back-end network monitoring platform via a single network for real-time monitoring of both the rocket and ground networks. The ground back-end network also includes network monitoring units and high-speed network data packet acquisition devices. All rocket and ground test data from the integrated rocket-ground network are collected and stored using these high-speed network data packet acquisition devices. The network monitoring unit acquires and analyzes the collected rocket and ground test data through these devices and can proactively obtain the operating status and logs of all ground switches via SNMP requests. This information is then integrated and presented to the user in a graphical visualization format, achieving real-time dynamic monitoring of the entire integrated rocket-ground network status.

[0061] 1. Integrated Arrow-Ground Network Architecture

[0062] Traditional onboard systems of launch vehicles typically use the 1553B bus for communication. The 1553B bus supports dual redundancy and offers strong real-time performance. Its reliability and determinism make it suitable for transmitting control commands sensitive to deterministic delays, ensuring high mission reliability. In contrast, traditional ground-based telemetry and control systems use an Ethernet network architecture for communication between front-end and back-end devices. This results in a lack of network connectivity between the launch vehicle and the ground, preventing direct communication and network status monitoring. Due to this network barrier, traditional methods involve a single computer receiving information from the launch vehicle and then forwarding it. This approach fails to provide simultaneous, real-time monitoring of onboard equipment and networks, and is incompatible with various data transmission protocols. Therefore, current onboard monitoring can only be performed retrospectively, lacking a real-time, intuitive status monitoring platform.

[0063] To address the problem of fragmented communication between the rocket and the ground, this embodiment employs a rocket-to-ground communication network architecture based on the integration of real-time network (RTT) and Ethernet, achieving integrated rocket-to-ground network communication. Through a layered communication architecture, a TTE network is used for critical control functions such as flight control and engine commands, while Ethernet is used for transmitting non-real-time data, such as telemetry, images, and general network status, from the rocket to the ground. The data is then aggregated through the ground-based TRT network and sent to a network monitoring platform, enabling real-time, synchronous, and intuitive monitoring of the rocket-to-ground network status.

[0064] Time-triggered Ethernet (TTE) is a real-time Ethernet solution based on "time triggering," characterized by determinism, real-time performance, high speed, compatibility, and reliability. It is suitable for local area networks with static topologies and predictable node numbers and behaviors. Traditional ground-based telemetry and control systems for launch vehicles mostly use Ethernet, which cannot directly communicate with the onboard network. Due to the aforementioned characteristics of TTE, it is not only suitable for data transmission on the onboard communication network but also, through its compatibility, can transmit network device status, network link status, and network data traffic to the ground network via ordinary Ethernet transmission methods, achieving integrated onboard and ground network monitoring.

[0065] like Figure 1 As shown, the launch vehicle network is divided into an onboard network and a ground-based telemetry, tracking, and command (TT&C) network. The integrated onboard and ground network architecture is as follows: the onboard network includes several onboard real-time network exchange master nodes and several onboard terminal nodes; the ground-based TT&C network includes a ground front-end network and a ground back-end network; the ground front-end network includes a ground front-end Ethernet master node and ground front-end device terminals; the ground back-end network includes a ground back-end Ethernet master node and ground back-end device terminals; the onboard network and the ground-based TT&C network are connected through two onboard-to-ground communication exchange master nodes located in the ground front-end network to achieve network communication between the onboard and ground; that is, the onboard-to-ground communication exchange master nodes forward all onboard and ground-based test data collected from the onboard network to the ground front-end Ethernet master node and the ground back-end Ethernet master node in the ground-based TT&C network.

[0066] The onboard real-time network switch master node provides a standard Ethernet physical interface and supports the TTE network protocol for real-time communication with onboard end nodes. For critical business data with high real-time and deterministic requirements, the TT frame format protocol is used; for other data, the BE frame format protocol is used, forwarding onboard and ground test data to the onboard ground communication exchange master node. The onboard ground communication exchange master node sends all onboard and ground test data received via Ethernet to the ground front-end Ethernet master node, which then transmits it to the ground back-end Ethernet via front-end and back-end fiber optic links. The back-end Ethernet distributes the test data to the corresponding ground end nodes. This network link enables status monitoring, data monitoring, analysis, and troubleshooting of the entire onboard and ground network, achieving real-time monitoring of the entire network and providing necessary support for the efficient and reliable operation of the onboard and ground network.

[0067] 2. Integrated Arrow-Ground Monitoring Platform Architecture

[0068] The implementation of the integrated rocket-ground network monitoring platform architecture specifically involves setting up network monitoring units and high-speed network data packet acquisition equipment. Adopting a layered architecture and a "platform + component" design concept, a modular, loosely coupled, and scalable network monitoring platform is created. It achieves real-time monitoring and diagnostic capabilities for the rocket system's ground communication network by employing standard SNMP network management protocols and Syslog log protocols.

[0069] The network monitoring unit's software architecture comprises a five-layer design:

[0070] 1) Access Layer

[0071] It is responsible for the unified collection of communication network data from onboard and ground network switching equipment of the launch vehicle system. It adopts a unified architecture, unified protocol and unified interface mode to improve data transmission efficiency, ensure data authenticity and reliability, and at the same time take into account software reusability and software scalability.

[0072] 2) Protocol adaptation layer

[0073] It provides comprehensive management and push of internal and external protocols, ensuring seamless integration of communication system protocols, and providing a unified data scheduling and management protocol for external application systems to achieve efficient data aggregation.

[0074] 3) Transport layer

[0075] It uses the UDP protocol for data transmission, ensuring high efficiency and low latency, while also supporting data conversion and on-demand configuration of IP addresses and ports.

[0076] 4) Database layer

[0077] It is responsible for data processing, aggregation, fusion and mining, realizing unified management of network management data, solving data latency problems through distributed message middleware mechanism, and providing strong data support for application layer and upper-level system.

[0078] 5) Application Layer

[0079] From a business perspective, we integrate network, storage, and application resources to provide system management and network monitoring services. We present key network monitoring information in a graphical and visual manner, such as network topology, key equipment monitoring, alarm monitoring, device monitoring, and statistical analysis.

[0080] 3. Composition of the integrated ground-to-air monitoring platform

[0081] The integrated ground-based monitoring platform consists of a network monitoring unit and a high-speed network data packet acquisition device.

[0082] The network monitoring unit is primarily responsible for overall network monitoring, providing a comprehensive and intuitive analysis and display of network status, traffic, and other information, along with alarm alerts. Specific functions include integrated onboard and ground network topology display, switch operating status display, network link communication status display, and network interface card (NIC) working status display for connected devices. The network monitoring unit can collect switch logs from the ground-based measurement and control network via SNMP or syslog, analyze the switch operating status, and configure alarms. The network monitoring unit has a software interface with high-speed network data packet acquisition devices, allowing it to display the data packet information acquired by these devices on the interface. When an anomaly occurs (such as an anomaly in the switch or device operating status in the onboard and ground test data), fault alarms and details are displayed on the monitoring interface, helping users to promptly identify and locate network problems.

[0083] The high-speed network data packet acquisition device connects to the ground front-end Ethernet master node and the ground back-end Ethernet master node. It acquires and stores all test data of the on-rocket network sent by the arrow-to-ground communication exchange master node through mirroring. It can capture, analyze, path analyze and classify Ethernet network data packets of various network protocol types such as UDP, TCP and TTE.

[0084] 4. Implementation Approaches for Integrated Arrow-Ground Network Monitoring Technology

[0085] The onboard network of a launch vehicle performs command issuance and data reception functions through a real-time network, while also being compatible with the data transmission protocol of ordinary Ethernet. Therefore, network monitoring of the onboard network is divided into two parts:

[0086] (1) The test data for the rocket includes critical business data and general test data. Critical business data with high real-time requirements (such as critical control commands) adopts the TT frame format and is transmitted between the rocket's on-board nodes through the TTE network protocol; the critical business data includes command issuance between the rocket's on-board nodes, interactive data between the rocket's on-board nodes, and status information of the rocket's real-time network exchange master node and the rocket's on-board nodes;

[0087] Simultaneously, the on-board nodes forward critical business data to the on-board communication switch. The on-board test data is then forwarded to the front-end switch via the on-board communication switch. The front-end switch collects and forwards the test data, which is then aggregated and sent to the back-end high-speed network data packet acquisition device for collection and storage of the on-board network test data.

[0088] The network monitoring unit can obtain various types of arrow-based test data by calling the interface, and has the function of capturing and parsing TT frame format data. It can dynamically display the operating status of the equipment on the arrow, the network operating status, and data information in real time.

[0089] (2) For ordinary test data of the Arrow Network (including ordinary data, network status, traffic and other related data), network status monitoring and data transmission are carried out using ordinary Ethernet in BE data format. The above-mentioned critical business data in TT format will be converted into ordinary BE data format. Through ordinary Ethernet protocol, the critical business data will be converted into BE frame format by the Arrow Real-Time Network Switch Master Node and transmitted to the Arrow Ground Communication Switch Master Node in a switch mirroring manner.

[0090] In the on-board network, TT frame format data has high priority, while BE frame format data has low priority. BE frame format data is transmitted using the remaining bandwidth of the on-board network, without interfering with or affecting the high-priority data transmission of the on-board network. While monitoring the operating status of the on-board network devices, it ensures that TT data is transmitted without conflict or waiting, guaranteeing the high real-time performance, determinism, and high reliability of the on-board data.

[0091] The real-time network switch and status information of the on-rocket network are converted from TT format data to ordinary Ethernet data through the on-rocket ground communication switch. At the same time, ordinary test data on the rocket is captured. The above two parts of network monitoring data are transmitted to the ground front-end switch through the on-rocket ground communication switch to mirror and obtain bidirectional communication data between the rocket and the ground, so as to realize the functions of monitoring the equipment status, network status, and network data traffic of the on-rocket network.

[0092] The launch vehicle's ground network captures network data packets via ground-based front-end switches and port mirroring, specifically each received and sent data packet processed by the switch. A separate pair of front-end switches is connected to the rocket-to-ground communication switches, respectively, and integrated into the rocket's dual-redundant network to acquire the onboard communication data collected by the rocket-to-ground communication switches.

[0093] The onboard and ground network data of the launch vehicle are aggregated by high-speed network data packet acquisition equipment, which summarizes all network status, device status, data traffic, and other information in the integrated launch vehicle-ground network. The ground front-end switch transmits the test data collected by the launch vehicle-ground communication switch to the high-speed network data packet acquisition equipment for aggregation.

[0094] The high-speed network data packet acquisition device sends all network data packets to the network monitoring unit. The network monitoring unit processes, analyzes, aggregates, merges, and mines the data to achieve unified management and monitoring of the network monitoring data of the entire integrated arrow-ground network.

[0095] 5. On-Rocket Network Monitoring Methods and Monitoring Information

[0096] This invention employs a rocket-to-ground communication network architecture based on a fusion of real-time network and Ethernet for launch vehicle telemetry, tracking, and command (TT / C / G) systems. This architecture establishes communication between the rocket and ground networks, allowing information from the rocket network to be directly accessed by ground equipment. In other words, the backend network monitoring unit can acquire network data from both the ground TT / C / G and rocket networks, thus achieving integrated rocket-to-ground network monitoring. Compared to traditional launch vehicle systems, this provides a more intuitive and real-time view of critical rocket network information and monitoring status. The rocket utilizes a TTE network to record the communication status of onboard terminal devices, including link status, TT synchronization status, TT / BE communication statistics, and anomaly statistics. Properly utilizing critical communication status data can effectively troubleshoot and resolve TTE network communication failures.

[0097] Unlike onboard commands, there is no requirement for high real-time or high reliability in communication status. Therefore, the arrow-to-ground communication protocol uses ordinary Ethernet for communication. By designing the message format of BE frames, the system can collect and acquire information on the onboard network status, device status, and various network data.

[0098] 1. Switch Status Information. Any end node can send commands to the switch in BE mode. The switch will send the response in BE mode to the command sender to obtain the switch status information, including the switch synchronization status, port connection status, and whether the TT frame transmission and reception of each port of the switch is disabled or enabled.

[0099] 2. End Node Status Information. End node status information includes network link status, network synchronization information, communication anomaly information, and communication information between the host computer and the slave computer.

[0100] By using the above methods to monitor the status of the onboard network switches and end nodes, and through the rocket-to-ground communication network architecture based on the integration of real-time network and Ethernet for launch vehicle telemetry, tracking, and command, the onboard network monitoring information is transmitted to the backend network monitoring unit. This achieves the goal of real-time monitoring and status synchronization of the onboard network by the backend, overcoming the problem that the ground cannot obtain the status and network information of the onboard equipment and can only analyze the onboard information afterward. This realizes real-time monitoring of the entire integrated rocket-to-ground communication network.

[0101] The parts of this invention not described in detail are common knowledge to those skilled in the art.

Claims

1. A ground-based integrated monitoring system, characterized in that, The integrated rocket-ground monitoring system adopts a layered communication architecture, including: rocket-mounted network and ground-based measurement, control, and control network; The onboard network includes several onboard real-time network switching master nodes and several onboard terminal nodes; the ground-based measurement, launch, and control network includes a ground-based front-end network and a ground-based back-end network; the ground-based front-end network includes a ground-based front-end Ethernet master node and ground-based front-end equipment terminals; the ground-based back-end network includes a ground-based back-end Ethernet master node and ground-based back-end equipment terminals; the onboard network and the ground-based measurement, launch, and control network are connected through two onboard-to-ground communication switching master nodes set in the ground-based front-end network to achieve network communication between the onboard and ground-based networks; that is, the onboard-to-ground communication switching master node forwards all onboard-to-ground test data collected by the onboard network to the ground-based front-end Ethernet master node and the ground-based back-end Ethernet master node in the ground-based measurement, launch, and control network; The ground backend network is also equipped with a network monitoring unit and a high-speed network data packet acquisition device; the high-speed network data packet acquisition device is connected to the ground frontend Ethernet master node and the ground backend Ethernet master node, and acquires and stores all the rocket-to-ground test data of the rocket network sent by the rocket-to-ground communication exchange master node through mirroring; On the one hand, the network monitoring unit captures, parses, and displays all the test data of the rocket-borne network collected by the high-speed network data packet acquisition device. On the other hand, it can actively obtain network management data of all master nodes in the ground measurement and control network based on SNMP and syslog, including switch operating status and logs.

2. The integrated ground-based monitoring system according to claim 1, characterized in that: The on-board network supports data transmission using two network protocols: TTE network protocol and ordinary Ethernet protocol. The on-board test data includes critical business data and ordinary test data. Critical business data with high real-time requirements adopts TT frame format and is transmitted between on-board nodes via TTE network protocol. The critical business data includes command issuance between on-board nodes, interactive data between on-board nodes, and status information of the on-board real-time network exchange master node and on-board nodes.

3. The integrated ground-based monitoring system according to claim 2, characterized in that: The Arrow Real-Time Network Switching Master Node also provides a standard Ethernet physical interface. Through the ordinary Ethernet protocol, it converts critical business data into BE frame format via the Arrow Real-Time Network Switching Master Node and transmits it to the Arrow Ground Communication Switching Master Node in the form of switch mirroring. For general test data of the Arrow Network, the BE frame format is used to avoid affecting the transmission of critical business data. The general test data is transmitted to the Arrow-ground communication main node through the general Ethernet protocol and in the same way as switch mirroring. The general test data includes switch operating status, device operating status, switch port traffic, and port occupancy rate. The arrow-to-ground communication switching master node receives arrow-to-ground test data in BE frame format via ordinary Ethernet protocol and sends it to the ground front-end Ethernet master node, and then sends it to the ground back-end Ethernet master node via fiber optic link; the ground back-end Ethernet master node distributes the test data in BE frame format to the corresponding ground back-end equipment terminals.

4. The integrated ground-based monitoring system according to claim 3, characterized in that: The network monitoring unit's software architecture comprises a five-layer design: Access layer: Adopting a unified architecture, unified protocol, and unified interface, it is responsible for data access; Protocol adaptation layer: Provides comprehensive management and push of internal and external protocols, ensures the adaptation of internal and external protocols, and provides a unified data scheduling and management protocol for external application systems; Transport layer: Uses UDP protocol for data transmission, and supports data conversion and on-demand configuration of IP addresses and ports; Database layer: Responsible for data processing, aggregation, fusion and search, realizing unified data management, and solving data latency problems through a distributed message middleware mechanism; Application layer: Presents network monitoring information in a graphical and visual manner, including network topology, device monitoring, alarm monitoring, and statistical analysis.

5. The integrated ground-based monitoring system according to claim 3, characterized in that: The network monitoring unit has a software interface with the high-speed network data packet acquisition device, which displays the data packet information acquired by the high-speed network data packet acquisition device on the monitoring interface. When an abnormality occurs, the fault alarm and detailed prompts will be displayed on the monitoring interface. The high-speed network data packet acquisition device enables data packet capture, path analysis, and data packet classification and retrieval.

6. The integrated ground-based monitoring system according to claim 5, characterized in that: The abnormal status specifically includes: abnormal operation status of the switch or equipment in the ground test data, and abnormal operation status of the switch in the master node of the ground measurement and control network actively obtained based on SNMP and syslog.

7. The integrated ground-based monitoring system according to claim 3, characterized in that: In the Arrow Network, TT frame format data has high priority, while BE frame format data has low priority. BE frame format data is transmitted using the remaining bandwidth of the Arrow Network and will not interfere with or affect the high-priority data transmission of the Arrow Network.

8. The integrated ground-based monitoring system according to claim 3, characterized in that: The status information of the real-time network switching master node and the terminal node on the arrow uses the TT frame format, which is converted into the BE frame format (ordinary Ethernet data A) by the real-time network switching master node on the arrow and transmitted to the arrow-to-ground communication switching master node. Simultaneously, the onboard real-time network exchange master node captures packets of ordinary test data on the rocket, obtaining ordinary Ethernet data B. The above two parts of network monitoring data, namely ordinary Ethernet data A and B, are transmitted to the ground front-end Ethernet master node via the rocket-to-ground communication exchange master node, mirroring and acquiring bidirectional communication data between the rocket and the ground, thereby realizing the monitoring of equipment status, network status, and network data traffic on the rocket network.

9. The integrated ground-based monitoring system according to claim 3, characterized in that: The ground front-end network captures network data packets through the ground front-end Ethernet master node by mirroring the switch ports. That is, each data packet received and sent after being processed by the ground front-end Ethernet master node. A separate pair of ground front-end Ethernet master nodes are set up to connect to the arrow-to-ground communication switching master node and are connected to the arrow-on-the-air network to obtain the arrow-to-ground test data collected by the arrow-to-ground communication switching master node.

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