Open sea no-signal area network transmission system

Abstract

The invention provides an open sea no-signal area network transmission system. The open sea no-signal area network transmission system comprises a digital construction and management platform, an informatization infrastructure, a gateway router, a fixed node, a dynamic node and a flagship node, the digital construction and management platform is in communication connection with the gateway router through a mobile network, and the gateway router is in communication connection with the flagship node; the dynamic nodes are respectively arranged on ship formations sailing on a construction sea area, and the informatization infrastructures are all in communication connection with the fixed nodes; the flagship node, the dynamic node and the fixed node are mutually networked and connected; in the invention, the flagship node, the dynamic node and the fixed node are mutually networked and connected, each node is an access terminal server, and is also a star-shaped, linear, net-shaped and mixed network of a wireless routing relay, a centerless distributed self-organized, self-adaptive and self-recovery dynamic routing and a multi-hop relay, so that the communication distance is increased, the interference is effectively avoided, and the communication efficiency is improved. Secret communication is realized, and reliability is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of network communication, and in particular relates to a network transmission system in an offshore signal-free area. Background Art

[0002] At the project construction site, information infrastructure, construction management platforms and other facilities need to rely on the network for data transmission. Currently, data transmission is usually carried out using mobile networks such as 4G and 5G. However, when construction is carried out in areas with no signal offshore, data cannot be transmitted using mobile networks, which brings inconvenience to the establishment of information infrastructure, construction management platforms and other facilities, and affects work efficiency, management level and decision-making ability.

[0003] In the prior art, such as the Chinese utility model patent document with authorization announcement number CN218277160U, a wireless networking communication system for uninhabited areas is disclosed. The system transmits data to a cloud server through a wireless networking cloud platform. The cloud server forwards the data and sends it to the corresponding gateway. The gateway then transmits the data to the relay segment. The relay segment amplifies the signal and compensates for signal attenuation to prevent packet loss. Finally, the data is transmitted to each terminal so that the collected data can be uploaded in a timely manner. This communication method has a short communication distance, is easily interfered with and affects data transmission, and has poor reliability.

[0004] Therefore, it is necessary to design a network transmission system for offshore signal-free areas that can increase communication distance, effectively avoid interference, achieve confidential communication, and improve reliability to solve the current technical problems. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention provides a network transmission system for offshore signal-free areas that increases communication distance, effectively avoids interference, achieves confidential communication, and improves reliability.

[0006] The technical solution of the present invention is: an offshore signal-free area network transmission system, including: a digital construction and management platform, an information infrastructure, a gateway router, fixed nodes, dynamic nodes and a flagship node; the digital construction and management platform is communicated with the gateway router through a mobile network, and the gateway router is communicated with the flagship node; the dynamic nodes are respectively arranged on the ship formations sailing in the construction sea area, and the information infrastructure is communicated with the fixed nodes; the flagship node, dynamic nodes and fixed nodes are interconnected in a network.

[0007] The information infrastructure includes dam safety monitoring devices, hydrological and sediment monitoring devices, video surveillance devices and facial access control. The dam safety monitoring devices, hydrological and sediment monitoring devices, video surveillance devices and facial access control are all communicated with fixed nodes respectively.

[0008] The dam safety monitoring device has deformation monitoring sensors, seepage monitoring sensors, and stress and strain monitoring sensors arranged on the dam.

[0009] The hydrological sediment monitoring device includes a water level monitoring sensor, sediment content monitoring equipment, and flow velocity and direction sensor.

[0010] The video monitoring device includes a fixed-point monitoring component and a ship-borne monitoring component. The fixed-point monitoring component is installed in the construction area, and the ship-borne monitoring component is installed on the hull of the ship.

[0011] Facial access control systems are installed on ships to count and locate personnel on board. The offshore network transmission system for areas without signal signals also includes airborne nodes installed on drones. These nodes, along with flagship nodes, dynamic nodes, and fixed nodes, form a network interconnected.

[0012] Airborne nodes, flagship nodes, dynamic nodes, and fixed nodes are all MimoMesh broadband ad hoc network radio stations.

[0013] MimoMesh broadband ad hoc network radio uses time-domain digital filtering and MIMO smart antennas to suppress out-of-band interference.

[0014] MimoMesh broadband ad hoc network radio uses FEC forward error correction and ARQ error control transmission mechanism to reduce data transmission packet loss rate.

[0015] Beneficial effects of the present invention:

[0016] (1) In the present invention, flagship nodes, dynamic nodes, and fixed nodes are interconnected, and each node is both an access terminal server and a wireless routing relay. The centerless, distributed, self-organizing, adaptive, and self-recovering dynamic routing and multi-hop relay star, linear, mesh, and hybrid networks increase communication distance, effectively avoid interference, achieve confidential communication, and improve reliability.

[0017] (2) The offshore network transmission system with no signal in the area can realize data transmission between the digital construction management platform and the information infrastructure of the construction site, thereby improving work efficiency, management level and decision-making ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a principle block diagram of the offshore no-signal area network transmission system of the present invention. DETAILED DESCRIPTION

[0019] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments herein. These embodiments are provided to make the present invention thorough and complete and to fully convey the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions, and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0020] The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are simply used to distinguish different parts. Terms such as "include" or "comprising" mean that the elements preceding the term include the elements listed after the term, and do not exclude the possibility of also including other elements. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0021] like Figure 1 As shown, the offshore signal-free area network transmission system includes: a digital construction management platform 1, an information infrastructure 6, a gateway router 2, a fixed node 5, a dynamic node 4 and a flagship node 3; the digital construction management platform 1 is connected to the gateway router 2 through a mobile network, and the gateway router 2 is connected to the flagship node 3; the dynamic nodes 4 are respectively arranged on the ship formations sailing on the construction sea area, and the information infrastructure 6 is connected to the fixed node 5; the flagship node 3, the dynamic node 4 and the fixed node 5 are networked with each other; in this embodiment, the flagship node 3, the dynamic node 4 and the fixed node 5 are networked with each other, and each node is both an access terminal server and a wireless routing relay, a star, linear, mesh and hybrid network with decentralized, distributed self-organizing, adaptive, self-recovering dynamic routing and multi-hop relay, which improves the communication distance, effectively avoids interference, realizes confidential communication and improves reliability; the offshore signal-free area network transmission system can realize data transmission between the digital construction management platform 1 and the construction site information infrastructure 6, thereby improving work efficiency, management level and decision-making ability.

[0022] In some embodiments, as a specific implementation method of the information infrastructure 6, the information infrastructure 6 includes a dam safety monitoring device 61, a hydrological and sediment monitoring device 62, a video monitoring device 63 and a facial access control 64. The dam safety monitoring device 61, the hydrological and sediment monitoring device 62, the video monitoring device 63 and the facial access control 64 are respectively communicated with the fixed node 5.

[0023] In some embodiments, as a specific implementation of the dam safety monitoring device 61, the dam safety monitoring device 61 has a deformation monitoring sensor, a seepage monitoring sensor, and a stress and strain monitoring sensor arranged on the dam; wherein the deformation monitoring sensor includes a global navigation satellite system receiver, a fixed inclinometer, and a multi-point displacement meter; the global navigation satellite system receiver can accurately measure the three-dimensional coordinate changes of specific monitoring points on the dam surface, reflecting the overall displacement of the dam; the fixed inclinometer is installed in the inclinometer tube inside the dam, measures the horizontal displacement at different depths of the dam, and monitors the internal deformation of the dam in real time; the multi-point displacement meter consists of multiple anchor heads and displacement sensors, and simultaneously measures the displacement changes at different depths of the dam, and is suitable for long-term monitoring of the internal deformation of the dam; the seepage monitoring sensor includes a piezometer and a water measuring weir meter. The piezometer is used to measure the pore water pressure of the dam body and dam foundation, and judge the seepage state and stability of the dam. It is usually installed inside the dam body or in a borehole in the dam foundation; the water measuring weir meter is used to measure the seepage volume of the dam, and is suitable for the drainage system downstream of the dam.

[0024] In some embodiments, as a specific implementation of the hydrological sediment monitoring device 62, the hydrological sediment monitoring device 62 includes a water level monitoring sensor, a sediment content monitoring device, and a flow velocity and direction sensor; wherein the water level monitoring sensor can adopt a pressure water level gauge or an ultrasonic water level gauge to monitor the water level height; the sediment content monitoring equipment is used to collect sediment content data at major sites near the project; the flow velocity and direction sensor is used to collect water flow velocity and direction near major sites near the project.

[0025] In some embodiments, as a specific implementation of the video surveillance device 63, the video surveillance device 63 includes fixed-point monitoring components and ship-borne monitoring components. The fixed-point monitoring components are installed in the construction area, mainly targeting the extended embankment section of the construction area, and can rely on structures such as wave-breaking walls to carry out basic structure construction, and can be flexibly adjusted according to actual needs; the ship-borne monitoring components are installed on the hull of the ship, and the number is determined according to actual conditions; the fixed-point monitoring components and the ship-borne monitoring components are all-weather video surveillance equipment, so that management personnel can grasp the project site environment in real time to ensure project safety.

[0026] In some embodiments, as a specific implementation method of the facial access control 64, the facial access control 64 is installed on a ship and is used for counting and locating personnel on the ship, so that management personnel can grasp the personnel situation on the construction site in real time; the facial access control is mainly installed for large-scale construction ships owned by this section, such as laying ships, etc., and the number is determined according to actual conditions.

[0027] In some embodiments, the offshore signal-free area network transmission system further includes an airborne node 7, which is installed on a drone. The airborne node 7, the flagship node 3, the dynamic node 4, and the fixed node 5 are interconnected in a network; the airborne node 7 can achieve functions such as coverage and data collection of the target area, can flexibly arrange nodes, and can achieve two-way transmission of data.

[0028] In some embodiments, the airborne node 7, flagship node 3, dynamic node 4, and fixed node 5 are all MimoMesh broadband ad hoc network radios. MimoMesh broadband ad hoc network radios are ad-hoc mobile networks with MIMO smart antenna radios. Mobile Network MIMO technology (MN-MIMO) is a state-of-the-art waveform that addresses many of the challenges facing today's wireless communications. It performs unprecedentedly well under critical and harsh conditions, providing long-distance, high-bandwidth, networked video and data communications for the world's most challenging environments. The combination of Coded Orthogonal Frequency Division Multiplexing (COFDM), Multiple Input Multiple Output (MIMO) smart antennas, and Mobile Ad Hoc Networking (MANET) technologies enables reliable transmission with excellent performance and flexibility. COFDM decomposes broadband channels into many discrete, narrow, orthogonal subchannels or subcarriers, enabling reliable long-distance transmission. MIMO smart antenna input and output, combined with digital signal processing, further improves wireless link performance. In MANET (Mobile Ad Hoc Networking), each radio acts as a terminal access server, wireless router, and interconnection gateway, enabling dynamic, multi-hop, point-to-point communication between numerous users.

[0029] In some embodiments, the MimoMesh broadband self-organizing network radio uses time-domain digital filtering and MIMO smart antennas to suppress out-of-band interference; at the same time, through periodic spectrum scanning, it supports intelligent frequency selection working mode. When the working frequency is interfered with in the device networking state, each node can independently and dynamically select the optimal frequency without interference for heterogeneous frequency networking transmission, effectively avoiding random interference; and supports autonomous frequency hopping working mode, providing any group of working channels within the working frequency band, and high-speed synchronous hopping across the entire network, effectively avoiding malicious interference and achieving confidential communication.

[0030] In some embodiments, the MimoMesh broadband ad hoc network radio uses FEC forward error correction and ARQ error control transmission mechanisms to reduce the data transmission packet loss rate and improve data transmission efficiency.

[0031] Thus far, various embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details well known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0032] The above embodiments only represent some embodiments of the present invention. Although the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be based on the appended claims.

Claims

1. A network transmission system for offshore areas without signal, characterized in that: include: Digital construction and management platform, information infrastructure, gateway routers, fixed nodes, dynamic nodes and flagship nodes; The digital construction management platform communicates with the gateway router via the mobile network, and the gateway router communicates with the flagship node; Dynamic nodes are set up on the fleet of ships sailing in the construction area, and the information infrastructure is connected to the fixed nodes; Flagship nodes, dynamic nodes, and fixed nodes are interconnected.

2. The offshore no-signal area network transmission system according to claim 1, characterized in that: The information infrastructure includes dam safety monitoring devices, hydrological and sediment monitoring devices, video surveillance devices and facial access control. The dam safety monitoring devices, hydrological and sediment monitoring devices, video surveillance devices and facial access control are all communicated with fixed nodes respectively.

3. The offshore no-signal area network transmission system according to claim 2, characterized in that: The dam safety monitoring device has deformation monitoring sensors, seepage monitoring sensors, and stress and strain monitoring sensors arranged on the dam.

4. The offshore no-signal area network transmission system according to claim 2, characterized in that: The hydrological sediment monitoring device includes a water level monitoring sensor, sediment content monitoring equipment, and flow velocity and direction sensor.

5. The offshore no-signal area network transmission system according to claim 2, characterized in that: The video monitoring device includes a fixed-point monitoring component and a ship-borne monitoring component. The fixed-point monitoring component is installed in the construction area, and the ship-borne monitoring component is installed on the hull of the ship.

6. The offshore no-signal area network transmission system according to claim 2, characterized in that: Facial access control is installed on ships and is used for counting and locating people on board.

7. The offshore no-signal area network transmission system according to claim 1, characterized in that: It also includes airborne nodes, which are installed on drones. The airborne nodes, flagship nodes, dynamic nodes, and fixed nodes are interconnected.

8. The offshore no-signal area network transmission system according to claim 7, characterized in that: Airborne nodes, flagship nodes, dynamic nodes, and fixed nodes are all MimoMesh broadband ad hoc network radio stations.

9. The offshore no-signal area network transmission system according to claim 8, characterized in that: MimoMesh broadband ad hoc network radio uses time-domain digital filtering and MIMO smart antennas to suppress out-of-band interference.

10. The offshore no-signal area network transmission system according to claim 8, characterized in that: MimoMesh broadband ad hoc network radio uses FEC forward error correction and ARQ error control transmission mechanism to reduce data transmission packet loss rate.

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