Method for conveniently accessing air-sea cross-domain communication network

Abstract

The invention relates to the technical field of communication, and discloses a method for conveniently accessing an air-sea cross-domain communication network. According to the method, a buoy gateway sends a request to an external server to obtain mapping information of a public network IP address and a port, and a cloud server returns the public network IP address and the port mapping information of the buoy gateway according to the request, so that network address translation penetration is realized, limitation of network address translation equipment and a firewall is bypassed, and the network address translation efficiency is improved. And establishing a direct communication channel with a cloud server or a shore-based system. The method for conveniently accessing the air-sea cross-domain communication network, provided by the invention, not only effectively solves the problems faced by a traditional communication scheme and improves the efficiency of data transmission and the expansibility of the system, but also provides a reliable, low-delay and efficient communication scheme for the field of ocean and air monitoring; and the intelligent and networked development process of related fields is promoted.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a method for conveniently accessing an air-sea cross-domain communication network. Background Art

[0002] At present, offshore buoys are widely used in the fields of marine environmental monitoring, meteorological data collection, and marine resource surveys. Buoys usually transmit data with shore-based sites or cloud servers through wireless communication technologies (such as satellite communications and cellular communications). However, due to the dynamic changes in the location of offshore buoys and their complex interactions with the network, how to efficiently and reliably achieve cross-domain connection and interconnection between buoy gateways and cloud servers and shore-based systems has become a technical challenge. Especially when faced with network restrictions such as NAT (Network Address Translation) or firewalls, traditional communication protocols often cannot meet the real-time and stable connection requirements between buoys and cloud systems.

[0003] Therefore, it is necessary to provide a method for conveniently accessing the air-sea cross-domain communication network to solve the above technical problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a method for convenient access to the air-sea cross-domain communication network. The method can break through the limitations of traditional network communications, realize efficient and stable connection between the offshore buoy gateway and the cloud server, and ensure real-time data transmission between the buoy and the shore base, and can effectively solve the network limitations of network address translation or firewalls.

[0005] The method for conveniently accessing the air-sea cross-domain communication network provided by the present invention includes multiple cross-domain communication buoy gateways and a specific cloud-based air-sea cross-domain communication network protocol. The cross-domain communication buoy gateway is connected to the cloud server through the cloud-based air-sea cross-domain communication network protocol, thereby realizing the interconnection of multiple cross-domain communication buoy gateways and data transmission with the shore base.

[0006] The buoy gateway obtains the mapping information of the public IP and port by sending a request to an external server. The cloud server returns the public IP address and port mapping information of the buoy gateway based on the request to achieve network address translation penetration, bypass network address translation devices and firewall restrictions, and establish a direct communication channel with the cloud server or shore-based system.

[0007] The method comprises the following steps: S1. The buoy gateway first sends a request to the cloud server on the public network through its embedded communication module (such as a satellite communication module or a cellular communication module); S2. After receiving the request from the buoy gateway, the cloud server will return the public IP address and port mapping information of the buoy gateway according to the request information to help the buoy gateway identify its public address after network address conversion; S3. After obtaining the public network IP and port mapping information, the buoy gateway will establish a connection with the cloud server or shore-based system and transmit the collected data to the cloud or shore-based system in real time; S4, the cloud server is responsible for receiving and analyzing these data, processing them according to specific needs, and sending commands or feedback data to the buoy gateway.

[0008] Preferably, the cross-domain communication buoy gateway includes but is not limited to a low-cost quick-deployment cross-domain communication gateway, a ship-borne disposable cross-domain communication gateway, a surface fast mobile cross-domain communication gateway, and a self-positioning cross-domain communication gateway.

[0009] Preferably, the main purpose of the cloud-based air-sea cross-domain communication network protocol is to help the client find its own public IP address in the network environment and establish a communication connection with other devices.

[0010] Preferably, the buoy gateway uses the UDP protocol for data transmission to adapt to the actual situation of frequent changes in buoy positions and large network fluctuations in the marine environment, thereby reducing data transmission delays and improving real-time performance.

[0011] Preferably, the method supports the interconnection of multiple buoy gateways in different regions and different network environments: each buoy gateway establishes an independent communication channel with the corresponding cloud server, thereby realizing cross-domain connection with the cloud server or shore-based system, forming a multi-device interconnection architecture to meet the needs of large-scale distributed data collection and transmission; as the number of buoys increases, the system dynamically adjusts the communication strategy to ensure stable access and data upload of each buoy. The advantage of this distributed network structure is that it can effectively avoid single point failures and improve the reliability and scalability of the entire system.

[0012] Preferably, the buoy gateway and the cloud server regularly exchange heartbeat signals to monitor the network status of the buoy gateway and the stability of data transmission in real time: if an interruption or failure occurs during the communication process, the buoy gateway will automatically detect and try to re-establish the connection to ensure the continuity and reliability of communication. This fault recovery mechanism provides the system with an automated emergency response, avoiding manual intervention, thereby maintaining the stable operation of the buoy system in harsh marine environments.

[0013] Compared with the related art, the method for conveniently accessing the air-sea cross-domain communication network provided by the present invention has the following beneficial effects: The present invention proposes a method for conveniently accessing the air-sea cross-domain communication network based on the cloud, which successfully solves the communication problems of the ocean buoy system in a complex network environment, especially overcoming the obstacles of network address translation and firewalls, and has significant technical advantages and application value. First, by using a specific protocol, the method enables the buoy gateway to break through the limitations of traditional firewalls and network address translation devices without a public IP address and achieve stable remote communication. This breakthrough innovation solves the communication bottleneck of offshore buoys in the network environment, ensures efficient connection between the buoy and the cloud server, and greatly improves the stability and reliability of the system.

[0014] Secondly, this method uses the UDP (User Datagram Protocol) protocol for data transmission. Compared with the traditional TCP protocol, UDP can provide a more efficient and low-latency communication method, which is particularly suitable for scenarios such as ocean buoys that require high timeliness. The connectionless nature of the UDP protocol enables the buoy gateway to flexibly respond to factors such as buoy position and network fluctuations in a dynamically changing marine environment, ensuring the transmission and processing of real-time data. This is of great significance for timely response and decision-making in tasks such as marine monitoring and environmental monitoring.

[0015] In addition, the technical solution based on the cloud server has excellent scalability and flexibility. It can support multiple buoy gateway devices to interconnect in different regions and different network environments to form a distributed communication network. This distributed structure enables the entire system to be flexibly expanded according to actual needs and adapt to application scenarios of different scales and environments. Whether in ocean buoy monitoring systems, maritime rescue, meteorological monitoring, or other occasions that require sea-air collaborative operations, this technical solution can provide stable communication guarantees.

[0016] To sum up, the method for conveniently accessing the air-sea cross-domain communication network proposed in the present invention not only effectively solves the problems faced by traditional communication solutions, improves the efficiency of data transmission and the scalability of the system, but also provides a reliable, low-latency and efficient communication solution for the field of ocean and air monitoring, and promotes the process of intelligent and networked development in related fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A scene diagram of a method for conveniently accessing an air-sea cross-domain communication network provided by the present invention; Figure 2 This is a working step diagram of the cross-domain buoy gateway access method of the present invention; Figure 3 This is a conceptual diagram of cross-domain buoy gateway access in the present invention. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0019] The present invention proposes a method for conveniently accessing an air-sea cross-domain communication network, which includes multiple cross-domain communication buoy gateways and a specific cloud-based air-sea cross-domain communication network protocol; thereby, the cross-domain communication buoy gateway is connected to the cloud server through the cloud-based air-sea cross-domain communication network protocol, thereby realizing the interconnection of multiple cross-domain communication buoy gateways and data transmission with the shore base.

[0020] The cross-domain communication buoy gateway includes: various types of buoy gateways, such as: low-cost fast-deployed cross-domain communication gateway, ship-borne disposable cross-domain communication gateway, surface fast mobile cross-domain communication gateway, self-positioning cross-domain communication gateway; the communication modules of the various communication gateways for electromagnetic communication on water may be different, which will lead to the inability to achieve the interconnection and intercommunication of multiple cross-domain communication gateways. Therefore, the cross-domain communication gateway is connected to the cloud server to achieve the interconnection and intercommunication between multi-node cross-domain communication gateways, such as Figure 1 shown.

[0021] The main purpose of the cloud-based air-sea cross-domain communication network protocol is to help the client (cross-domain communication gateway device) find its own public IP address in the network environment, and then establish a communication connection with other devices. For remote devices such as offshore buoys, there are several potential advantages to applying this protocol. Offshore buoys are usually located in the ocean or large waters, and may be connected to the communication system on the shore through a wireless network (such as satellite communication, LoRa, VHF, etc.). In this environment, buoys often need to exchange data with shore-based control centers or other buoys, ships and other equipment. Since buoys in the ocean are often in a changing environment (such as ocean currents, wind direction, equipment migration, etc.), the public IP address of the buoy may change, which requires an effective way to traverse network address translation.

[0022] The working principle of this method of conveniently accessing the air-sea cross-domain communication network is as follows Figure 2As shown: The buoy gateway device obtains the mapping information of the public network IP and port by sending a request to an external server. This can be used in the following aspects in the application scenario of offshore buoys: Network penetration: The buoy device may run in the intranet, especially when it establishes a connection with the onshore device through satellite or other wireless communication methods. The cloud-based air-sea cross-domain buoy gateway interconnection access protocol can help the buoy find its external public network IP and port, avoiding the communication problem of the device in a complex network address translation environment. The buoy device can use the server to obtain its own public network IP, and then establish a direct connection with the shore-based site or other buoys. Improve communication reliability: At sea, buoys are often far away from the shore, and network connections are easily affected by various factors (such as ocean weather, satellite signal interference, etc.). Buoys can handle address changes and network penetration problems more flexibly, thereby ensuring the stability of communication. Real-time data transmission: Buoys usually need to transmit a large amount of data in real time (such as meteorological data, ocean monitoring data, location data, etc.). It can ensure real-time connection between buoys and other systems, reduce delays, and ensure timely upload and download of data. Interoperability with multiple devices: This cloud-based cross-domain communication gateway interconnection access method allows buoys to seamlessly connect with devices in different network environments, especially in multi-buoy systems, where a buoy can establish a reliable connection with other buoys or shore-based sites without a direct public IP.

[0023] During the implementation process, the buoy gateway first establishes a connection with the cloud server of the public network through its embedded communication module (such as a satellite communication module or a cellular communication module). After the buoy gateway is started, it will send a request to the cloud server to detect the network environment in which it is located. Specifically, this request is used to determine whether there is an address translation in the network where the buoy gateway is located, and to obtain its public IP address and port mapping information. Since offshore buoys are often in different network environments, it is crucial to accurately obtain this information, which lays the foundation for subsequent network communications.

[0024] After receiving the request from the buoy gateway, the cloud server will return the public IP address and port mapping information of the buoy gateway according to the request information, helping the buoy gateway to identify its public address after network address conversion. This process realizes the penetration of network address conversion, allowing the buoy gateway to bypass the limitations of network address conversion equipment and firewalls and establish a direct communication channel with the cloud server or shore-based system. The core function of this cloud-based cross-domain gateway interconnection access protocol is to help devices obtain valid external addresses through a simple communication mechanism, breaking through the limitations of traditional network environments, thereby ensuring that buoys can communicate stably in harsh marine environments.

[0025] After successfully obtaining the public IP address and port mapping information, the buoy gateway will use the UDP protocol for data transmission. Since the UDP protocol is a connectionless protocol, it has significant advantages in handling large-scale, real-time data transmission. Especially in the communication between the buoy gateway and the cloud or shore-based system, the UDP protocol can adapt to the actual situation of frequent changes in the buoy position and large network fluctuations in the marine environment, significantly reducing the delay of data transmission and improving real-time performance. Compared with the TCP protocol, the UDP protocol reduces the overhead caused by connection establishment and maintenance, allowing the buoy to transmit data to the cloud or shore-based system more flexibly and quickly, ensuring the efficiency of real-time monitoring and feedback.

[0026] After obtaining the public IP and port mapping information, the buoy gateway will establish a connection with the cloud server or shore-based system. Once the connection is established, the buoy gateway can transmit the collected data to the cloud or shore-based system in real time. The cloud server is responsible for receiving and analyzing the data, processing it according to specific needs, and sending commands or feedback data to the buoy gateway. This two-way, real-time data exchange mechanism ensures that the buoy system can be effectively monitored in extreme environments and quickly respond to environmental changes.

[0027] (1) Multi-device interconnection and distributed network structure Another important feature of this technology is that it supports the interconnection of multiple buoy gateways in different regions and different network environments. Each buoy gateway establishes an independent communication channel with the corresponding cloud server, so that it can achieve cross-domain connection with the cloud server or shore-based system. This multi-device interconnection architecture enables the system to be flexibly expanded to meet the needs of large-scale distributed data collection and transmission. As the number of buoys increases, the system can ensure stable access and data upload of each buoy by dynamically adjusting the communication strategy. The advantage of this distributed network structure is that it can effectively avoid single point failures and improve the reliability and scalability of the entire system.

[0028] (2) System monitoring and fault recovery To ensure the stability of the system, the buoy gateway and the cloud server will regularly exchange heartbeat signals. Through this mechanism, the system can monitor the network status of the buoy gateway and the stability of data transmission in real time. If an interruption or failure occurs during the communication process, the buoy gateway will automatically detect and try to re-establish the connection to ensure the continuity and reliability of communication. This fault recovery mechanism provides the system with an automated emergency response, avoiding manual intervention, thereby maintaining the stable operation of the buoy system in harsh marine environments.

[0029] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for conveniently accessing an air-sea cross-domain communication network, characterized in that: The method comprises a plurality of cross-domain communication buoy gateways and a specific cloud-based air-sea cross-domain communication network protocol. The cross-domain communication buoy gateway is connected to a cloud server through the cloud-based air-sea cross-domain communication network protocol to realize the interconnection and intercommunication of multiple cross-domain communication buoy gateways and data transmission with the shore. The method comprises the following steps: S1. The buoy gateway first sends a request to the cloud server on the public network through its embedded communication module; S2. After receiving the request from the buoy gateway, the cloud server will return the public IP address and port mapping information of the buoy gateway according to the request information to help the buoy gateway identify its public address after network address conversion; S3. After obtaining the public network IP and port mapping information, the buoy gateway will establish a connection with the cloud server or shore-based system and transmit the collected data to the cloud or shore-based system in real time; S4, the cloud server is responsible for receiving and analyzing these data, processing them according to specific needs, and sending commands or feedback data to the buoy gateway; The cross-domain communication buoy gateway includes but is not limited to a low-cost fast-deployed cross-domain communication gateway, a ship-borne disposable cross-domain communication gateway, a surface fast-mobile cross-domain communication gateway, and a self-positioning cross-domain communication gateway; The method supports the interconnection of multiple buoy gateways in different regions and different network environments: each buoy gateway establishes an independent communication channel with the corresponding cloud server, thereby realizing cross-domain connection with the cloud server or shore-based system, forming a multi-device interconnection architecture to meet the needs of large-scale distributed data collection and transmission; as the number of buoys increases, the system dynamically adjusts the communication strategy to ensure stable access and data upload of each buoy.

2. The method for conveniently accessing an air-sea cross-domain communication network as claimed in claim 1, characterized in that: The purpose of the cloud-based air-sea cross-domain communication network protocol is to help the client find its own public IP address in the network environment and establish a communication connection with other devices.

3. The method for conveniently accessing an air-sea cross-domain communication network as claimed in claim 1, characterized in that: The buoy gateway uses the UDP protocol for data transmission to adapt to the actual situation of frequent changes in buoy positions and large network fluctuations in the marine environment, reducing the delay of data transmission and improving real-time performance.

4. The method for conveniently accessing an air-sea cross-domain communication network as claimed in claim 1, characterized in that: The buoy gateway and the cloud server regularly exchange heartbeat signals to monitor the network status of the buoy gateway and the stability of data transmission in real time: if an interruption or failure occurs during the communication process, the buoy gateway will automatically detect and attempt to re-establish the connection to ensure the continuity and reliability of communication.

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