VDES terminal system integrated with WiFi function and communication method

Abstract

The invention discloses a VDES terminal system integrated with a WiFi function and a communication method. The system comprises a VDES terminal and a plurality of mobile terminals, the VDES terminal specifically comprises a VDES main control unit, a first wireless communication unit, a power supply module, a satellite positioning module and an interface unit, and a wireless local area network communication unit is also integrated in the VDES terminal; the VDES terminal receives remote instruction information through the first wireless communication unit, and transmits the remote instruction information to the plurality of mobile terminals through the wireless local area network communication unit; the wireless local area network communication unit receives execution or data sent by the mobile terminal, and the execution or data is sent out through the first wireless communication unit after being processed by the VDES main control unit. The WiFi function is integrated in the VDES, the limitation that the VDES terminal must be fixed in front of a special display when the VDES terminal is operated is abandoned, the operation convenience and the working efficiency are remarkably improved, and the VDES terminal has the advantage of perfectly adapting to the mobility of the ship operation environment.

Description

Technical Field

[0001] This invention relates to the field of maritime communication technology, specifically to a VDES terminal system and communication method integrating WiFi functionality. Background Technology

[0002] In existing technologies, achieving human-machine interaction and data transmission between crew members and VDES terminals mainly relies on the following two solutions: Solution 1: Dedicated display control unit: This is currently the most mainstream method. VDES terminal devices are typically installed as a "black box," lacking a screen and keyboard. All interaction must be accomplished through a dedicated, wired display control unit, usually a display panel fixed to the bridge. This dedicated display connects to the VDES terminal host via a wired interface. Solution 2: Access via PC and wired connection: The VDES terminal is connected via a wired connection to a desktop or laptop computer in the bridge. Dedicated client software runs on this computer, enabling viewing of VDES information and control of the terminal device. This computer is also usually fixed in place. In this context, existing technologies are lacking and disconnected from the need for crew members to conveniently access VDES information using mobile phones, tablets, or laptops. Currently, there is no mature integrated solution that directly allows mobile smart terminals to interact with the VDES terminal.

[0003] The aforementioned existing technical solutions have revealed the following significant drawbacks and shortcomings in practical maritime applications, particularly in terms of the convenience and flexibility of human-computer interaction: 1) Rigid human-computer interaction and poor convenience: Crew members must be stationed in front of a dedicated display panel or PC to operate and view information, making mobile connectivity impossible. In the complex working environment of a ship, operators may need to work in different locations, and fixed display terminals severely limit operational flexibility and real-time information access, failing to meet the demands of modern navigation for flexible access.

[0004] 2) Complex deployment, high cost, and poor scalability: Dedicated display units are expensive: Monitors or industrial PCs that meet the requirements of the maritime environment are costly. Cumbersome cabling: Dedicated data and power cables need to be laid between the VDES host and the dedicated monitor or PC, increasing the complexity and cost of ship construction and modification. Poor scalability: A system typically only supports one dedicated display terminal. If additional display points are needed in multiple locations such as the captain's cabin or engine room, additional wiring and display equipment must be installed, drastically increasing costs and technical difficulty.

[0005] 3) Inability to support simultaneous access by multiple mobile smart terminals: Modern seafarers are generally equipped with personal devices such as smartphones and tablets. Existing technology cannot allow multiple seafarers to conveniently access real-time information in the VDES network using their own devices at the same time, and cannot effectively distribute information to the personnel who need it most, forming "information silos" and reducing the efficiency of collaborative work and the ship's overall situational awareness.

[0006] 4) Outdated user experience and disconnect from interface interaction trends: Wireless and mobile interaction has become the absolute mainstream. However, the interaction methods in the maritime field are still stuck in the old model of "wired connection and fixed location". The user experience is poor, the learning cost is high, and it is seriously out of touch with the way crew members operate smart devices in their daily lives, which is not conducive to the promotion and application of new technologies.

[0007] 5) Inconvenient maintenance and upgrades: Software on dedicated display terminals usually requires manual updates and depends on specific hardware platforms. Upgrading the human-computer interaction interface or functions may require replacing the entire hardware unit, while smart terminals connected via WiFi can easily update software and iterate functions through app stores.

[0008] In summary, existing VDES terminal devices suffer from inherent inconvenience, inflexibility, high cost, and poor scalability in human-computer interaction. The core issue lies in the lack of a wireless, mobile, standardized, and low-cost human-computer interaction channel. This invention aims to directly address these pain points by integrating WiFi functionality. Summary of the Invention

[0009] To address the aforementioned issues, this invention provides a VDES terminal system with integrated WiFi functionality, comprising a VDES terminal and multiple mobile terminals; the VDES terminal specifically includes a VDES main control unit, a first wireless communication unit, a power module, a satellite positioning module, and an interface unit, and the VDES terminal also integrates a wireless local area network communication unit. The VDES terminal receives remote command information through the first wireless communication unit and then transmits it to multiple mobile terminals via the wireless local area network communication unit; the wireless local area network communication unit receives execution or data sent by the mobile terminals, processes it through the VDES main control unit, and then sends it out through the first wireless communication unit; the power module is used to power the VDES terminal; the satellite positioning module is used to determine location information and communicates with the VDES main control unit through a serial port; the interface unit is used to connect various devices on the ship. In the above, the VDES master control unit is coupled to the first wireless communication unit and the wireless local area network communication unit, and is configured to: send data received through the first wireless communication unit to multiple mobile terminals via the wireless local area network communication unit, and send instructions or data received from mobile terminals through the wireless local area network communication unit via the first wireless communication unit.

[0010] Furthermore, the wireless local area network communication unit is specifically a WiFi communication module, which is used to transmit VDES protocol data and user interaction data information, and has a built-in TCP / IP protocol stack.

[0011] Furthermore, the satellite positioning module is specifically a high-precision multi-frequency BeiDou / GPS dual-mode positioning module, used to determine the ship's current latitude, longitude, speed, and heading information.

[0012] Furthermore, the interface unit specifically includes: multiple antenna interfaces, a 10 / 100 / 1000M adaptive Ethernet port, 2xRS-232 / 485 serial ports, 1xCAN bus interface, and a USB interface; the multiple antenna interfaces specifically include a VDES / VHF antenna interface, a WiFi antenna interface, and a satellite positioning antenna interface.

[0013] Furthermore, the first wireless communication unit specifically includes a VDES transceiver chipset, a power amplifier, a low-noise amplifier, and a bandpass filter; wherein, the VDES transceiver chipset receives the maritime VHF frequency band, and the power amplifier, low-noise amplifier, and bandpass filter process the received signal in sequence before transmitting it to the VDES main control unit for analysis.

[0014] Furthermore, the mobile terminal is equipped with a dedicated APP, through which users can interactively control the VDES terminal.

[0015] A VDES terminal communication method integrating WiFi functionality includes the following steps: A. Business Data Communication: A1. Receive multi-source data information and transmit the received data to the VDES main control unit for parsing and processing; A2. Encapsulate the parsed and processed data in JSON format to form a standardized data packet; A3. Send the encapsulated JSON data packet to the connected mobile terminal via the wireless LAN communication unit; B. Interactive data communication: B1. Receives interactive information from shipboard staff via wireless LAN communication unit and transmits the interactive information to VDES main control unit for parsing and processing; B2. Encapsulate the parsed and processed data in JSON format to form a standardized data packet; B3. The encapsulated JSON data packet is sent to the outside world through the first wireless communication unit.

[0016] Furthermore, the multi-source data information in step A1 specifically includes: the first wireless communication unit continuously receiving all AIS / ASM / VDE messages in the air; the current latitude, longitude, speed, and heading information of the ship obtained by the satellite positioning module; and the data information of the ship and its surroundings obtained through the interface unit; wherein, the data information of the ship and its surroundings specifically includes: dynamic route data, ship attitude data, hazard warning data, radar data, sensor data, and ship VDR data.

[0017] Furthermore, it also includes initialization steps: starting all hardware units of the hull, loading VDES and the network protocol stack, and configuring the wireless LAN communication unit to AP mode.

[0018] This invention provides a VDES terminal system and communication method with integrated WiFi functionality, which has the following advantages: This invention integrates WiFi functionality into the VDES terminal device, eliminating the limitation of having to be fixed in front of a dedicated display when operating the VDES terminal. This represents a fundamental shift from "person searching for equipment" to "equipment following the person," significantly improving operational convenience and work efficiency, and perfectly adapting to the mobility characteristics of the shipboard operating environment. The invention employs an integrated hardware design, integrating the WiFi module, antenna, and related circuitry with the VDES main control board, sharing power management and data processing units. This eliminates the need for a separate, external industrial-grade WiFi router and dedicated display panel, saving users equipment procurement costs. Simultaneously, it reduces the space occupied by the equipment installation, simplifies power and data cable laying, and lowers the complexity and overall cost of ship construction and system integration. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 The method flowchart provided by the present invention. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0022] The following detailed description of the implementation method of the present invention is in conjunction with the accompanying drawings. The description is only a partial embodiment and not all embodiments. For clarity, representations and descriptions unrelated to the present invention are omitted in the drawings and description.

[0023] To provide a clearer understanding of the technical features, objectives, and beneficial effects of this invention, the following detailed description of the technical solution is provided. Obviously, the described embodiments are only a portion of the embodiments of this invention, not all of them, and should not be construed as limiting the scope of implementation of this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the protection scope of this invention.

[0024] VDES (VHF Data Exchange System) is a next-generation maritime communication standard designed to enhance the functionality of traditional AIS, providing ships with more robust secure communication and broadband data exchange capabilities. The core task of a typical VDES terminal is to receive, process, and display various types of information broadcast by the VDES system. This information includes, but is not limited to: AIS (Automatic Identification System) information: dynamic and static information about surrounding vessels; ASM (Application Special Messages): such as electronic chart updates, navigation warnings, weather information, and maritime safety information; and VDE (VHF Data Exchange) information: VDE is divided into VDE-TER (with shore-based facilities or other vessels) and VDE-SAT (VDES satellite system) for addressing or broadcasting data communication.

[0025] This invention provides a VDES terminal system with integrated WiFi functionality. The WiFi module is integrated as a built-in functional unit, physically and electrically integrated with the VDES VHF radio frequency unit, main control processor, power management, etc., within the same housing, sharing the same hardware platform and resources to form a single, entirely new device entity. Specifically, it includes a VDES terminal and multiple mobile terminals. The VDES terminal specifically includes a VDES main control unit, a first wireless communication unit, a power module, a satellite positioning module, and an interface unit. The VDES terminal also integrates a wireless local area network communication unit. The device uses a metal casing, meeting IP67 protection standards and marine environment corrosion resistance requirements.

[0026] The VDES terminal receives remote command information through the first wireless communication unit and then transmits it to multiple mobile terminals via the wireless local area network communication unit. The wireless local area network communication unit receives execution or data sent by the mobile terminals, processes it through the VDES main control unit, and then sends it out through the first wireless communication unit. The power module is used to power the VDES terminal, the satellite positioning module is used to determine location information and communicates with the VDES main control unit through a serial port, and the interface unit is used to connect various devices on the ship.

[0027] The processor inside the VDES terminal runs a specific program that encapsulates the received VDES protocol messages into data packets based on the TCP / IP protocol, and sends them to the connected mobile device via the WiFi module through internal Socket connections, HTTP / HTTPS APIs, etc.; conversely, it unpacks the IP data packets sent by the mobile device, restores them to VDES protocol messages, and sends them out.

[0028] In the above description, the VDES master control unit is coupled to the first wireless communication unit and the wireless LAN communication unit, and is configured to: transmit data received through the first wireless communication unit to multiple mobile terminals via the wireless LAN communication unit; and transmit instructions or data received from mobile terminals via the wireless LAN communication unit via the first wireless communication unit. It employs an ARM Cortex-A series multi-core processor and runs an embedded Linux operating system. It is responsible for running all core logic, including the VDES protocol stack, network protocol stack, data routing, and protocol conversion.

[0029] The wireless LAN communication unit is specifically a WiFi communication module, which is used to transmit VDES protocol data and user interaction data. It incorporates a built-in TCP / IP protocol stack. It uses an industrial-grade M.2 interface WiFi 6 (802.11ax) module, supporting dual-band concurrent operation at 2.4GHz and 5GHz. While the module has a built-in TCP / IP protocol stack, its driver and network configuration are managed centrally by the main control processor. This module supports AP, STA, and AP+STA mixed modes.

[0030] The satellite positioning module is specifically a high-precision, multi-frequency BeiDou / GPS dual-mode positioning module, used to determine the ship's current latitude, longitude, speed, and heading information.

[0031] The power module adopts a wide voltage input design to adapt to the ship's power system, providing stable and isolated 3.3V, 5V, and 12V power to all internal units, and has overvoltage, overcurrent, and reverse connection protection functions.

[0032] The interface unit specifically includes: multiple antenna interfaces, a 10 / 100 / 1000M adaptive Ethernet port, 2xRS-232 / 485 serial ports, 1xCAN bus interface, and a USB interface; the multiple antenna interfaces specifically include a VDES / VHF antenna interface, a WiFi antenna interface, and a satellite positioning antenna interface.

[0033] The first wireless communication unit specifically includes a VDES transceiver chipset, a power amplifier, a low-noise amplifier, and a bandpass filter, operating in the AIS1 / 2, ASM, and VDE-specified maritime VHF bands. Specifically, the VDES transceiver chipset receives signals from the maritime VHF band, and the received signals are processed sequentially by the power amplifier, low-noise amplifier, and bandpass filter before being transmitted to the VDES main control unit for analysis.

[0034] A dedicated app is installed on the mobile terminal, allowing users to interact with and control the VDES terminal through the app.

[0035] A VDES terminal communication method integrating WiFi functionality, such as Figure 1 As shown, it includes the following steps: A. Business Data Communication: A1. Receive multi-source data information and transmit the received data to the VDES main control unit for parsing and processing; A2. Encapsulate the parsed and processed data in JSON format to form a standardized data packet; A3. Send the encapsulated JSON data packet to the connected mobile terminal via the wireless LAN communication unit; B. Interactive data communication: B1. Receives interactive information from shipboard staff via wireless LAN communication unit and transmits the interactive information to VDES main control unit for parsing and processing; B2. Encapsulate the parsed and processed data in JSON format to form a standardized data packet; B3. The encapsulated JSON data packet is sent to the outside world through the first wireless communication unit.

[0036] In the above, the VDES master control unit runs a service program called VDES2WiFi Bridge. This program encapsulates all the data collected above, including AIS target ship information, ASM security messages, ship dynamics, sensor data, etc., in a predefined JSON format to form standardized data packets.

[0037] The multi-source data information in step A1 specifically includes: the first wireless communication unit continuously receiving all AIS / ASM / VDE messages in the air; the current latitude, longitude, speed, and heading information of the ship obtained by the satellite positioning module; and the data information of the ship and its surroundings obtained through the interface unit. Specifically, the data information of the ship and its surroundings includes: dynamic route data, ship attitude data, hazard warning data, radar data, sensor data, and ship VDR data.

[0038] It also includes initialization steps: starting all hardware units on the hull, loading VDES and the network protocol stack, and configuring the wireless LAN communication unit to AP mode.

[0039] The device can also connect to the ship's satellite broadband network or 4G / 5G router via Ethernet. The routing management algorithm within the main control processor can intelligently select whether to transmit data back to the shore server via the VDES link or the Internet link, based on the policy.

[0040] Example: All core functions of a professional VDES terminal can be accessed and controlled via a crew member's personal, non-maritime-specific, standardized mobile smart terminal (phone, tablet) and its customized app. The VDES terminal has a built-in industrial-grade WiFi module, which can create an independent wireless local area network, allowing smart mobile devices to access and control the terminal.

[0041] 1) Initial power-on and connection Step 1: Power on the VDES terminal and start the device. The system status indicator and WiFi status indicator on the device will remain lit, indicating that the device has started successfully and the WiFi module has been activated. All hardware units will start, loading the VDES and network protocol stack. The WiFi module will be configured in AP mode, automatically creating a wireless network with SSID VDES-Gateway-XXXX (XXXX being the last four digits of the device's unique ID). Initially, there will be no connection password (it is recommended that users add one upon first use).

[0042] Step 2: Turn on the WiFi settings on your smartphone or tablet.

[0043] Step 3: In the WiFi network list, find the wireless network named VDES-TERMINAL-XXXX (where XXXX is the last four digits of the device serial number).

[0044] Step 4: Select the network and connect. No password is required for the first connection. Once the connection is successful, the device's WiFi indicator light will flash.

[0045] 2) Access and Configuration After connecting to WiFi, open your device's browser and enter the default gateway address: 192.168.8.1 to access the device's built-in web management page. Advanced network settings can be configured on this page.

[0046] b) VDES Terminal APP User Manual 1) APP Acquisition and Installation You can scan the QR code provided on the device's web management page to be redirected to the app store to download the official app.

[0047] Alternatively, you can search for the app directly in the app store and download and install it.

[0048] 2) Basic operating procedures Connecting Devices: Ensure your phone's Wi-Fi is connected to the VDES terminal's hotspot. Open the app; it will automatically connect and redirect you to the overall situational awareness interface.

[0049] View Information: Browse the movement of your vessel and surrounding vessels on the main nautical chart. Click the "Messages" icon at the bottom to enter the message center and view various safety information received.

[0050] Sending messages: Click the floating "+" button on the homepage or the "New" button in the message center to enter the message editing and sending interface, edit and send ASM or VDE messages.

[0051] Managing Devices: Click the "Device" icon at the bottom to enter the device connection and management interface, where you can view system status or perform basic settings.

[0052] This invention integrates a WiFi module, which, compared to other common short-range wireless technologies (such as Bluetooth or ZigBee), supports simultaneous high-speed connections for multiple devices, offers longer transmission distances and wider coverage, and, based on the IP protocol, is seamlessly compatible with the mobile terminal ecosystem, simplifying development. Furthermore, by integrating the WiFi module into the VDES terminal to form a unified structure, the design is compact, highly reliable, and has strong anti-interference capabilities, meeting the requirements of the maritime environment. It eliminates the need for external power supplies and additional cables, avoiding issues such as loose interfaces and water ingress; and enables unified power management and power consumption control.

[0053] This invention integrates WiFi functionality into the VDES terminal device, eliminating the limitation of having to be fixed in front of a dedicated display when operating the VDES terminal. This represents a fundamental shift from "person searching for equipment" to "equipment following the person," significantly improving operational convenience and work efficiency, and perfectly adapting to the mobility characteristics of the shipboard operating environment. The invention employs an integrated hardware design, integrating the WiFi module, antenna, and related circuitry with the VDES main control board, sharing power management and data processing units. This eliminates the need for a separate, external industrial-grade WiFi router and dedicated display panel, saving users equipment procurement costs. Simultaneously, it reduces the space occupied by the equipment installation, simplifies power and data cable laying, and lowers the complexity and overall cost of ship construction and system integration.

[0054] This invention combines complex, specialized maritime communication functions with a universal and mature WiFi interaction method. The human-machine interface and business logic are implemented on a mobile app or web page, while the VDES terminal firmware primarily handles the core communication protocol. This architecture simplifies user interface upgrades and iterations without requiring replacement or upgrades to the VDES terminal hardware. This enables the system to quickly adapt to future application requirements, significantly extending the technical lifecycle of the terminal equipment and reducing long-term maintenance costs.

[0055] The integrated WiFi module provides a standardized network data interface. This allows other intelligent systems on board to easily transmit their data to the VDES terminal via the WiFi network, and then back to the shore management platform via the VDE-TER or VDE-SAT link. This invention's device becomes a converged gateway integrating maritime communication and local area network access. It makes it possible to build a localized maritime IoT ecosystem on board, centered on the VDES terminal, and provides crucial network infrastructure for the future development of richer intelligent ship applications, exhibiting extremely strong technical scalability.

[0056] In summary, this invention does not simply piece together two functional modules, but achieves a "1+1>2" technical effect through deep hardware integration and software protocol innovation. It fundamentally solves the core pain points of traditional VDES terminals in human-computer interaction and provides strong platform support for their development towards intelligence and networking.

[0057] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An integrated WiFi-capable VDES terminal system, comprising a VDES terminal, a plurality of mobile terminals; the VDES terminal specifically comprises a VDES master control unit, a first wireless communication unit, a power module, a satellite positioning module, an interface unit, characterized in that, The VDES terminal also integrates a wireless local area network communication unit; The VDES terminal receives remote instruction information through the first wireless communication unit, and transmits the information to the plurality of mobile terminals through the wireless local area network communication unit; the wireless local area network communication unit receives the execution or data sent by the mobile terminal, processes the execution or data through the VDES master control unit, and sends the execution or data through the first wireless communication unit; the power module is used for power supply of the VDES terminal, and the satellite positioning module is used for determining position information and communicating with the VDES master control unit through a serial port; and the interface unit is used for connecting various devices on the ship. In the above, the VDES master control unit is coupled to the first wireless communication unit and the wireless local area network communication unit, and is configured to send data received through the first wireless communication unit to the plurality of mobile terminals through the wireless local area network communication unit, and send instructions or data of the mobile terminal received through the wireless local area network communication unit through the first wireless communication unit.

2. The VDES terminal system with integrated WiFi functionality of claim 1, wherein, The wireless local area network communication unit is specifically a WiFi communication module, and the WiFi communication unit is used for transmitting VDES protocol data and user interaction data information, wherein a TCP / IP protocol stack is built-in.

3. The VDES terminal system with integrated WiFi functionality of claim 1, wherein, The satellite positioning module is specifically a high-precision multi-frequency point Beidou / GPS dual-mode positioning module, and is used for determining the current latitude, longitude, speed and heading information of the ship body.

4. The VDES terminal system with integrated WiFi functionality of claim 1, wherein, The interface unit specifically includes a plurality of antenna interfaces, a 10 / 100 / 1000M adaptive Ethernet port, 2xRS-232 / 485 serial ports, 1xCAN bus interface and a USB interface; the plurality of antenna interfaces specifically include a VDES / VHF antenna interface, a WiFi antenna interface and a satellite positioning antenna interface.

5. The VDES terminal system with integrated WiFi functionality of claim 1, wherein, The first wireless communication unit specifically includes a VDES transceiver chip set, a power amplifier, a low-noise amplifier and a band-pass filter; wherein the VDES transceiver chip set receives a marine VHF frequency band, and the received signal is processed by the power amplifier, the low-noise amplifier and the band-pass filter in sequence and then transmitted to the VDES master control unit for analysis.

6. The VDES terminal system with integrated WiFi functionality of claim 1, wherein, A special APP is arranged on the mobile terminal, and a user interacts with and controls the VDES terminal through the special APP.

7. A method of communication for a VDES terminal integrated with WiFi functionality, based on the VDES terminal system integrated with WiFi functionality of any one of claims 1-6, characterized in that, The method comprises the following steps: A. Business data communication: A1. receiving multi-source data information and transmitting the received data to the VDES master control unit for analysis and processing; A2. encapsulating the processed data based on a JSON format to form a standardized data packet; A3. sending the encapsulated JSON data packet to the connected mobile terminal through the wireless local area network communication unit; B. Interactive data communication: B1. receiving interactive information of the ship staff through the wireless local area network communication unit, and transmitting the interactive information to the VDES master control unit for analysis and processing; B2. encapsulating the processed data based on a JSON format to form a standardized data packet; B3. sending the encapsulated JSON data packet to the outside through the first wireless communication unit.

8. The VDES terminal communication method with integrated WiFi functionality according to claim 7, wherein, The multi-source data information in the A1 step specifically comprises: all AIS / ASM / VDE messages in the air continuously received by the first wireless communication unit; the current longitude, latitude, speed and heading information of the ship body obtained by the satellite positioning module; and the ship body and surrounding data information obtained through the interface unit, wherein the ship body and surrounding data information specifically comprises: dynamic route data, ship body attitude data, danger warning data, radar data, sensor data and ship body VDR data. 9.The VDES terminal communication method with integrated WiFi functionality of claim 7, wherein, The method further comprises an initialization step of starting all hardware units of the ship body, loading VDES and network protocol stack, and configuring the wireless local area network communication unit as an AP mode.

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