A maritime law enforcement network communication system and method based on WDN technology

Abstract

This invention relates to the field of maritime electronic communication technology, and in particular to a maritime law enforcement network communication system and method based on WDN technology. The system includes a WDN relay terminal, a self-organizing network terminal, a WDN network relay terminal network, and a data sharing APP. It connects to the maritime intranet government system via Mesh convergence and adaptive access, enabling interconnection between broadband data at the law enforcement site and the law enforcement dispatch and command center. By employing WDN wireless distributed self-organizing network technology, it constructs an integrated ship-shore maritime law enforcement communication network with long communication distance, low latency, and large network scale. This solves problems such as signal shielding in ship cabins and insufficient public network coverage on shore, ensuring stable data transmission and comprehensive data security. It also features multi-mode positioning, intelligent aggregation, and edge decision-making capabilities, supports audio and video transmission and multi-party consultation, achieving efficient collaboration, reducing reliance on public networks and satellite communication, saving costs, and providing integrated communication support for maritime supervision and emergency search and rescue.

Description

Technical Field

[0001] This invention relates to the field of maritime electronic communication technology, and in particular to a maritime law enforcement network communication system and method based on WDN technology. Background Technology

[0002] The maritime law enforcement network communication system, simply put, is a dedicated "air-ground-sea integrated" communication and command network for maritime departments. It connects shore-based facilities, vessels, drones, law enforcement terminals, and the command center to meet the voice, video, and data transmission needs of daily supervision, on-site law enforcement, and emergency response.

[0003] However, with the deepening of maritime supervision and law enforcement, the real-time audio and video acquisition at the enforcement site, multi-ship-shore collaborative consultations, and emergency search and rescue command have placed higher demands on the coverage, transmission bandwidth, stability, and security of communication systems. Currently, in maritime law enforcement scenarios, communication systems mainly rely on public 4G / 5G networks, maritime satellites, or traditional wired links. In practical applications, there are many inherent defects. First, the coverage and penetration of public network signals are insufficient, and signal blind spots are common in near-shore and offshore areas, as well as in enclosed spaces such as ship cabins and engine rooms. This results in law enforcement recorders and 5G law enforcement terminals being unable to stably transmit data, seriously affecting the efficiency of on-site evidence collection and command and dispatch. Second, the stable transmission of high-definition video and large files required for law enforcement is difficult to adapt to large-scale law enforcement scenarios. In addition, existing systems generally lack self-organizing network and multi-hop transmission capabilities, making it impossible to form collaborative communication links between ships and shore, inside and outside cabins, and between multiple law enforcement units. In emergency scenarios, communication links are prone to interruption due to single-point failures, resulting in poor reliability.

[0004] Therefore, a new network communication solution is needed that can achieve decentralized multi-hop transmission, high-security encryption, and integrated ship-shore coverage to meet the communication needs of all scenarios of maritime law enforcement. Summary of the Invention

[0005] The purpose of this invention is to provide a maritime law enforcement network communication system and method based on WDN technology to solve the problems mentioned in the background art.

[0006] The technical solution adopted in this invention is: A maritime law enforcement network communication system based on WDN technology includes: WDN relay terminals, self-organizing network terminals, WDN network relay terminal network and data sharing APP, and connects to the maritime intranet government affairs system through Mesh convergence and adaptive access, thereby enabling interconnection between broadband data at the law enforcement site and the law enforcement dispatch and command center.

[0007] Optionally, the WDN relay terminal is deployed at intervals through coastal maritime radar stations, while the self-organizing network terminal can be deployed on patrol boats or carried by UAVs. WDN network relay stations are set up in the coastal maritime VTS (Vessel Traffic Management System) radar stations and connected to the maritime intranet through the fiber optic route of the maritime VTS radar station. A WDN network self-organizing terminal is configured in the maritime intranet law enforcement command and dispatch center. The maritime intranet uses transparent link transmission to realize the interconnection between the intranet WDN network self-organizing terminal and the on-site law enforcement WAN network self-organizing terminal.

[0008] Optionally, a maritime law enforcement network communication system based on WDN technology includes the following steps: S1: First, deploy a WDN network relay station at the shore-based maritime VTS (Vessel Traffic Management System) radar station. Connect the WDN network to the maritime intranet via fiber optic routing from the maritime VTS radar station. Configure a WDN network self-organizing terminal at the maritime intranet law enforcement command and dispatch center. Use transparent link transmission on the intranet to achieve interconnection between the intranet WDN network self-organizing terminal and the on-site law enforcement WAN network self-organizing terminal.

[0009] S2: Deploy WDN network relay terminals on maritime patrol vessels to establish interconnection between the patrol vessels and the maritime radar station's WDN network relay station; install WDN network relay stations on drones to establish interconnection between the drone's onboard equipment and the maritime radar station's WDN relay station, enabling real-time transmission of drone data (camera, AI processing equipment data).

[0010] S3: Deploy two WDN self-organizing network terminals on the patrol boat, one on the top of the bridge and one carried by law enforcement officers, to establish interconnection between the patrol boat's on-site law enforcement data and the maritime intranet; law enforcement officers carry three WDN self-organizing network terminals and deploy them on the vessel preparing for maritime inspection, one in the bridge, one outside the engine room of the vessel to be inspected, and one carried by law enforcement officers as a law enforcement recorder or 5G law enforcement terminal into the engine room (engine room door open).

[0011] S4: On-site law enforcement WDN network self-organizing terminals and maritime intranet WDN network autonomous terminals are integrated with law enforcement recorders, 5G law enforcement terminals, mobile terminals, smartphones, etc. via RJ45.

[0012] Optionally, in step S4, the on-site law enforcement WDN network self-organizing terminal and the maritime intranet WDN network autonomous terminal can also be integrated with law enforcement recorders, 5G law enforcement terminals, mobile terminals, smartphones, etc. via WI-FI.

[0013] Optionally, the WDN self-organizing network terminal in S3 connects to the maritime intranet through the WDN network relay to realize the interconnection and interoperability of maritime law enforcement data (audio, video, network, images, and text) with the maritime law enforcement dispatch center.

[0014] Optionally, in step S4, the self-organizing network terminal WI-FI data aggregation enables maritime on-site law enforcement personnel to achieve functions such as instant communication, voice calls, video calls, multi-party meetings, situational awareness, and offline positioning with the law enforcement dispatch and command center.

[0015] Optionally, the maritime law enforcement network communication system based on WDN technology may also include: a network data security protection strategy.

[0016] Optionally, the network data security protection strategy may also include: WDN network data security protection strategy and data sharing APP network data security strategy.

[0017] Compared with the prior art, the beneficial effects of the present invention are: When in use, this application employs WDN wireless distributed self-organizing network technology to construct a dedicated communication network for ship-shore integrated maritime law enforcement. This network offers long communication distances, low latency, and large-scale deployment, resolving issues such as signal shielding in ship cabins and insufficient public network coverage on distant shores. It ensures stable data transmission for law enforcement. The equipment is miniaturized, low-power, portable, and easy to deploy, with long battery life. The system topology is flexible, with strong anti-interference capabilities and reliable data transmission. Employing a zero-trust architecture and AES256 encryption, combined with identity authentication and transmission security strategies, it comprehensively protects data security. Furthermore, it possesses multi-mode positioning, intelligent aggregation, and edge decision-making capabilities, supporting audio and video transmission and multi-party conferencing for efficient collaboration. This reduces reliance on public networks and satellite communication, saves costs, and provides integrated communication support for maritime supervision and emergency search and rescue. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a diagram of the maritime law enforcement network communication system architecture in this application. Detailed Implementation

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] Given that current technologies have poor public network coverage and penetration capabilities, are prone to signal blind spots in near-shore areas and ship cabins, pose high security risks to public network transmission, and cannot meet the requirements for classified law enforcement data transmission; maritime satellite communication is costly and has limited bandwidth, making it difficult to support services such as high-definition video, and existing systems lack self-organizing network multi-hop capabilities, ship-shore collaborative communication links are prone to interruption, have poor reliability, and cannot adapt to the full-scenario needs of maritime law enforcement.

[0023] like Figure 1 As shown, this embodiment of the invention provides a maritime law enforcement network communication system based on WDN technology, including: WDN relay terminal, self-organizing network terminal, WDN network relay terminal network and data sharing APP, and accesses the maritime intranet government affairs system through Mesh convergence adaptive access, thereby enabling interconnection between broadband data at the law enforcement site and the law enforcement dispatch and command center.

[0024] WDN relay terminals are deployed at intervals through coastal maritime radar stations, while self-organizing network terminals can be deployed on patrol vessels or drones. WDN network relay stations are set up in shore-based maritime VTS (Vessel Traffic Management System) radar stations and connected to the maritime intranet via fiber optic routes from the maritime VTS radar stations. In the maritime intranet law enforcement command and dispatch center, a WDN network self-organizing terminal is configured, and interconnection between the intranet WDN network self-organizing terminal and the on-site law enforcement WAN network self-organizing terminal is achieved through transparent link transmission on the intranet application. A maritime law enforcement network communication system based on WDN technology is characterized by the following steps: S1: First, deploy a WDN network relay station at the shore-based maritime VTS (Vessel Traffic Management System) radar station. Connect the WDN network to the maritime intranet via fiber optic routing from the maritime VTS radar station. Configure a WDN network self-organizing terminal at the maritime intranet law enforcement command and dispatch center. Use transparent link transmission on the intranet to achieve interconnection between the intranet WDN network self-organizing terminal and the on-site law enforcement WAN network self-organizing terminal.

[0025] S2: Deploy WDN network relay terminals on maritime patrol vessels to establish interconnection between the patrol vessels and the maritime radar station's WDN network relay station; install WDN network relay stations on drones to establish interconnection between the drone's onboard equipment and the maritime radar station's WDN relay station, enabling real-time transmission of drone data (camera, AI processing equipment data).

[0026] S3: Deploy two WDN self-organizing network terminals on the patrol boat, one on the top of the bridge and one carried by law enforcement officers, to establish interconnection between the patrol boat's on-site law enforcement data and the maritime intranet; law enforcement officers carry three WDN self-organizing network terminals and deploy them on the vessel preparing for maritime inspection, one in the bridge, one outside the engine room of the vessel to be inspected, and one carried by law enforcement officers as a law enforcement recorder or 5G law enforcement terminal into the engine room (engine room door open).

[0027] S4: On-site law enforcement WDN network self-organizing terminals and maritime intranet WDN network autonomous terminals are integrated with law enforcement recorders, 5G law enforcement terminals, mobile terminals, smartphones, etc. via RJ45.

[0028] In step S4, the on-site law enforcement WDN network self-organizing terminal and the maritime intranet WDN network autonomous terminal can also be integrated with law enforcement recorders, 5G law enforcement terminals, mobile terminals, smartphones, etc. via WI-FI.

[0029] The WDN self-organizing network terminal in S3 connects to the maritime intranet through the WDN network relay, enabling the interconnection of maritime law enforcement data (audio, video, network, images, and text) with the maritime law enforcement dispatch center.

[0030] In step S4, data aggregation via Wi-Fi from self-organizing network terminals enables maritime on-site law enforcement personnel to communicate with the law enforcement dispatch and command center in real time, voice calls, video calls, multi-party meetings, situational awareness, and offline positioning.

[0031] The WDN technology-based maritime law enforcement network communication system also includes: network data security protection strategies.

[0032] The network data security protection strategy also includes: WDN network data security protection strategy: WDN network security design takes "zero trust" as the core concept, builds a technical moat through end-to-end encryption, minimal privileges, and proactive defense, and establishes a bond of trust through transparent operation and user empowerment. Data Sharing App Network Data Security Strategy: a) End-to-End Encryption (E2EE) Communication Encryption: Data transmission such as messages, voice, and video calls between users uses end-to-end encryption, ensuring that only the sender and receiver can decrypt the content, and service providers or third parties cannot obtain plaintext data. Key Management: Encryption keys are generated and stored locally on the user's device, without passing through a server, eliminating the risk of man-in-the-middle attacks. b) Data Transmission Security IP Anonymization: Hides the user's real IP address to prevent geolocation tracking. c) Data Storage Protection: User chat logs, files, and other local data are stored using AES-256 encryption, making them unreadable even if the device is lost. d) Identity Authentication and Access Control: Employs device binding and authorization management, the principle of least privilege, the app only requesting manual authorization, and privacy protection mechanisms.

[0033] The wireless distributed communication system has flexible node interfaces, and the sensed data can be transmitted through the self-organized network between the end nodes to realize information sharing between the end nodes. With the help of relay nodes and network management, the self-organized network can be extended to the public network to meet the diverse applications of the industry. (1) Centerless communication system It does not rely on traditional base stations, does not require a central hub, and all nodes within the system are equal in status; each node can simultaneously serve as a data collection node, a relay forwarding node, and a data transmission node.

[0034] (2) Multi-hop communication system Any node supports multi-hop relay and relay transmission, breaking through line-of-sight limitations and extending the signal coverage.

[0035] (3) Intelligent dynamic routing Through high-performance, intelligent dynamic routing algorithm design, it is possible to achieve 32-node and 64-node networking on the same frequency, and further expand the network scale through inter-frequency networking and subnetting technology.

[0036] (4) Multi-network convergence capability It can interconnect with various communication systems such as trunking terminals, satellite communication systems, 4G / 5G public and private networks, Wi-Fi, and Bluetooth.

[0037] 2. Main technical equipment adopted (1) Integrated image and data transmission relay terminal It employs Wireless Distributed Communication (WDN) technology, supporting MU-MIMO (Multi-User Multiple-Input Multiple-Output). A single base station serves multiple mobile terminals simultaneously, fully utilizing antenna space resources to communicate with multiple users concurrently.

[0038] It supports real-time interference scanning and adaptive intelligent frequency selection; the system has high receiving sensitivity, effectively improving communication coverage; it supports chain networks, mesh networks, and hybrid networks, and supports dynamic routing; a single subnet can support a network scale of up to 64 nodes and supports 16 levels of multi-hop transmission; it has strong network adaptability and self-healing capabilities, enabling rapid network coverage in complex environments, and is suitable for multi-node mobile application scenarios.

[0039] Functionality and performance: Communication distance: 40km; b. Wireless speed: 90Mbps; c. Transmission delay: ≤20ms; Network size: 64 nodes, 16-hop transmission; e-modulation method: QPSK / 16QAM; f. Radio frequency operating frequency: 5.180~5.825GHz g-bandwidth configuration: 5 / 10 / 20 / 40MHz; h Intelligent frequency selection: Supports intelligent frequency selection; iRF transmit power: 2*40dBm; j-channel encryption: AES256; (2) Image data transmission from the network terminal Miniaturized and low-power design: weighing less than 400g, small size, handheld portability, and ultra-long battery life.

[0040] Situational awareness: Single BeiDou positioning, data upload, map visualization, and situational awareness.

[0041] Collaborative Communication: When paired with the Jixin APP, it enables instant communication and remote collaboration.

[0042] Multimedia applications: Supports multimedia communication such as voice, images, video, and data.

[0043] Functionality and performance: Device networking frequency: 5.180~5.825GHz; b. Debugging methods: QPSK / 16-QAM / 256-QAM; c. RF transmit power: 4*23dBm; d receiver sensitivity: up to -93dBm; e-bandwidth configuration: 20 / 40 / 80MHz; f. Wireless speed: 400Mbps; g network size: 100+ nodes per subnet, 20 hops; h Encryption protocol: AES256 protocol; (3) Data sharing APP function Instant messaging: sending information such as voice, video, pictures, and location; b. Voice calls: Supports one-on-one and multi-person voice calls; c. Video call: Supports video calls to share the situation on site; d. Multi-party meetings: Support multi-party meetings and discussions, and provide guidance for consultations; e-Situational Awareness: Displays teammates' online status and geographical location; f Offline positioning: Supports collaborative personnel positioning (single Beidou positioning) in offline situations.

[0044] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A maritime law enforcement network communication system based on WDN technology, characterized in that, include: WND relay terminals, self-organizing network terminals, WDN network relay terminals, and data sharing APP are integrated and adaptively accessed through Mesh convergence to the maritime intranet government affairs system, thereby enabling interconnection between broadband data at the law enforcement site and the law enforcement dispatch and command center.

2. The maritime law enforcement network communication system based on WDN technology according to claim 1, characterized in that, The WDN relay terminals are deployed at intervals through coastal maritime radar stations, while the self-organizing network terminals can be deployed on patrol boats or on drones. WDN network relay stations are set up in the coastal maritime VTS (Vessel Traffic Management System) radar stations and connected to the maritime intranet through the fiber optic route of the maritime VTS radar station. In the maritime intranet law enforcement command and dispatch center, a WDN network self-organizing terminal is configured and interconnected with the on-site law enforcement WAN network self-organizing terminal through the transparent link of the maritime intranet application.

3. A maritime law enforcement network communication method based on WDN technology, and a maritime law enforcement network communication system based on WDN technology according to any one of claims 1-2, characterized in that, Includes the following steps: S1: First, deploy a WDN network relay station at the shore-based maritime VTS (Vessel Traffic Management System) radar station. Connect the WDN network to the maritime intranet via fiber optic routing from the maritime VTS radar station. Configure a WDN network self-organizing terminal at the maritime intranet law enforcement command and dispatch center. Use transparent link transmission on the intranet to achieve interconnection between the intranet WDN network self-organizing terminal and the on-site law enforcement WAN network self-organizing terminal. S2: Deploy WDN network relay terminals on maritime patrol vessels to establish interconnection between the patrol vessels and the maritime radar station's WDN network relay station; install WDN network relay stations on drones to establish interconnection between the drone's onboard equipment and the maritime radar station's WDN relay station, enabling real-time transmission of drone data (camera, AI processing equipment data). S3: Deploy two WDN self-organizing network terminals on the patrol boat, one on the top of the bridge and one carried by law enforcement officers, to establish interconnection between the patrol boat's on-site law enforcement data and the maritime intranet; law enforcement officers carry three WDN self-organizing network terminals and deploy them on the vessel preparing for maritime inspection, one in the bridge, one outside the engine room of the vessel to be inspected, and one carried by law enforcement officers as a law enforcement recorder or 5G law enforcement terminal into the engine room (engine room door open). S4: On-site law enforcement WDN network self-organizing terminals and maritime intranet WDN network autonomous terminals are integrated with law enforcement recorders, 5G law enforcement terminals, mobile terminals, smartphones, etc. via RJ45.

4. A maritime law enforcement network communication method based on WDN technology according to claim 3, characterized in that, In step S4, the on-site law enforcement WDN network self-organizing terminal and the maritime intranet WDN network autonomous terminal can also be integrated with law enforcement recorders, 5G law enforcement terminals, mobile terminals, smartphones, etc. via WI-FI.

5. A maritime law enforcement network communication system based on WDN technology according to claim 1, characterized in that, The WDN self-organizing network terminal in S3 connects to the maritime intranet through the WDN network relay, realizing the interconnection and interoperability of maritime law enforcement data (audio, video, network, images, and text) with the maritime law enforcement dispatch center.

6. A maritime law enforcement network communication system and method based on WDN technology according to claim 3, characterized in that, In step S4, data aggregation via Wi-Fi from self-organizing network terminals enables maritime on-site law enforcement personnel to communicate with the law enforcement dispatch and command center in real time, voice calls, video calls, multi-party meetings, situational awareness, and offline positioning.

7. A maritime law enforcement network communication system based on WDN technology according to claim 1, characterized in that, The maritime law enforcement network communication system based on WDN technology also includes: network data security protection strategies.

8. A maritime law enforcement network communication system based on WDN technology according to claim 7, characterized in that, The network data security protection strategy also includes: WDN network data security protection strategy and data sharing APP network data security strategy.

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