Ship navigation signal lamp control system and control method

Abstract

The invention provides a ship navigation signal lamp control system and method, and belongs to the technical field of ship electrical control, and the system comprises a control unit which is used for determining the navigation state of a ship, and generating a control instruction of a target lamp combination according to a pre-stored collision avoidance rule mapping table; the adaptive communication unit is connected to the control unit and a power line network of the ship, and is used for selecting a target power line carrier modulation mode according to the communication quality parameters of the power line network, and transmitting a control instruction through the power line network based on the target power line carrier modulation mode; the at least one intelligent lamp terminal is in communication connection with the self-adaptive communication unit and the control unit through a power line network and is used for receiving and executing the control instruction through the power line network, detecting state information of the corresponding lamp in real time and feeding back the state information to the control unit through the power line network; wiring simplification, intelligent control and state monitoring can be considered, and the ship navigation safety and maintenance efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ship electrical control, in particular to a ship navigation signal light control system and a control method. BACKGROUND

[0002] Navigation lights and signal lights are crucial for ship navigation safety. At present, the ship navigation signal light control system mostly uses independent control lines to connect each light, resulting in complex ship wiring, high cost, and many fault points. The control mode mostly relies on manual operation of multiple switches, which is prone to cause light signal errors due to human errors. The actual state information of the light can only be known by judging whether the light is powered on or off through the control circuit, and the actual state information of the light cannot be known. Once a fault occurs, the crew needs to check and locate the fault on site one by one, which is low in positioning efficiency and affects the safety of navigation.

[0003] In summary, there is an urgent need for a ship navigation light signal light control system that can balance wiring simplification, intelligent control and state monitoring, and improve the safety and operation efficiency of the ship. SUMMARY

[0004] Therefore, it is necessary to provide a ship navigation signal light control system and a control method to solve the technical problems of complex wiring, low control reliability of navigation signal lights, and insufficient intelligent degree of the ship navigation signal light control system in the prior art.

[0005] In order to solve the above technical problems, in a first aspect, the present application provides a ship navigation signal light control system, the system comprising: a control unit for determining the navigation state of the ship and generating the control instruction of the target light combination corresponding to the navigation state according to the pre-stored collision avoidance rule mapping table; an adaptive communication unit connected to the control unit and the power line network of the ship, for selecting a target power line carrier modulation mode according to the communication quality parameter of the power line network, and transmitting the control instruction through the power line network based on the target power line carrier modulation mode; at least one intelligent light terminal, each intelligent light terminal corresponding to one light, the intelligent light terminal being communicatively connected to the adaptive communication unit and the control unit through the power line network, for receiving and executing the control instruction through the power line network, and detecting the state information of the corresponding light in real time, and feeding back the state information to the control unit through the power line network.

[0006] In a possible implementation manner, the control unit comprises: a state judgment module for determining the navigation state according to the navigation information of the ship; A strategy storage module stores the collision avoidance rule mapping table, which records the correspondence between different navigation states and combinations of light fixtures that need to be controlled to be turned on or off. An instruction generation module generates control instructions for each light fixture in a target light fixture combination according to the navigation state by querying the strategy storage module.

[0007] In a possible implementation, the state judgment module is specifically configured to: Obtain navigation parameters through a ship sensor or receive manually input instructions to determine the navigation state.

[0008] In a possible implementation, the adaptive communication unit includes: A channel monitoring module is configured to obtain communication quality parameters of the power line network in real time. A mode selection module is configured to dynamically switch between a wideband power line carrier modulation mode and a narrowband power line carrier modulation mode according to the communication quality parameters to select the target power line carrier modulation mode.

[0009] In a possible implementation, the mode selection module is specifically configured to: When the communication quality parameters are higher than a preset quality threshold, select a wideband modulation mode based on orthogonal frequency division multiplexing technology; When the communication quality parameters are lower than the preset quality threshold, select a narrowband modulation mode based on direct sequence spread spectrum technology. The control unit is further configured to receive state information fed back by the intelligent light fixture terminal and perform light fixture state monitoring according to the state information.

[0010] In a possible implementation, the state information includes at least one of working current, working voltage, and power parameters of a light fixture in the intelligent light fixture terminal.

[0011] In a possible implementation, the control unit is further configured to analyze the state information fed back by the intelligent light fixture terminal, trigger an alarm when the state information is abnormal, and indicate the position of the abnormal light fixture.

[0012] In a possible implementation, the intelligent light fixture terminal includes: A carrier communication module is configured to couple signals from the power line network and demodulate control instructions, and modulate and feed state information into the power line network; A drive control module is connected to the carrier communication module and corresponding light fixtures, and is configured to drive the light fixtures according to the demodulated control instructions. A state detection module is configured to collect state parameters of the light fixtures and send the state parameters as the state information to the carrier communication module.

[0013] In a second aspect, the present application also provides a control method applied to the ship navigation signal light control system of the first aspect, and the control method comprises: determining a current navigation state of the ship; generating a control instruction of a target navigation light combination based on the current navigation state and a pre-stored collision avoidance rule mapping table; obtaining a current communication quality parameter of a power line network of the ship; adaptively selecting a target power carrier modulation mode based on the current communication quality parameter; sending the control instruction to a corresponding intelligent lamp terminal through the power line network by using the target power carrier modulation mode; controlling the intelligent lamp terminal to execute the control instruction and collect state information of a corresponding lamp; feeding back the state information through the ship power line network.

[0014] The present application has the following beneficial effects: The ship navigation signal light control system provided by the present application comprises: a control unit for determining a navigation state of a ship and generating a control instruction of a target lamp combination corresponding to the navigation state according to a pre-stored collision avoidance rule mapping table, thereby reducing human operation errors, improving safety, and realizing intelligent control of ship navigation light signals; an adaptive communication unit connected to the control unit and a power line network of the ship, for selecting a target power carrier modulation mode according to a communication quality parameter of the power line network, and transmitting a control instruction through the power line network based on the target power carrier modulation mode, so as to dynamically select a wideband or narrowband method for modulation and communication, to ensure reliable transmission of the control instruction in a complex electromagnetic environment, and to use the existing power line network of the ship for data transmission, thereby greatly simplifying wiring; and at least one intelligent lamp terminal, each corresponding to a lamp, which is communicatively connected to the adaptive communication unit and the control unit through the power line network, for receiving and executing a control instruction through the power line network, and detecting state information of a corresponding lamp in real time, and feeding back the state information to the control unit through the power line network, thereby realizing remote, online and accurate monitoring of state information of each lamp, and forming reliable verification of execution results of the control instruction through a feedback mechanism, thereby providing double protection for the state of the ship navigation light through a bidirectional confirmation mechanism, and being capable of balancing wiring simplification, intelligent control and state monitoring, thereby improving ship navigation safety and maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of an embodiment of the ship navigation signal light control system provided by the present invention; Figure 2 This is a schematic diagram of the structure of the control unit provided by the present invention; Figure 3 This is a schematic diagram of the structure of the adaptive communication unit provided by the present invention; Figure 4 This is an internal functional block diagram of the adaptive communication unit provided by the present invention; Figure 5 This is a schematic diagram of the structure of the intelligent lighting terminal provided by the present invention; Figure 6 This is an architecture diagram of the ship navigation signal light control system provided by the present invention; Figure 7 A schematic diagram of the human-machine interface of the control unit provided by the present invention; Figure 8 This is a schematic flowchart of an embodiment of the ship navigation signal light control method provided by the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] In the description of the embodiments of the present invention, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0019] The terms "first," "second," etc., used in the embodiments of this invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a technical feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] This invention provides a ship navigation signal light control system and control method, which are described below.

[0022] Figure 1 This is a schematic diagram of an embodiment of the ship navigation signal light control system provided by the present invention, as shown below. Figure 1 As shown, the ship navigation signal light control system includes: The control unit 10 is used to determine the navigation status of the ship and generate control commands for the target lighting combination corresponding to the navigation status according to a pre-stored collision avoidance rule mapping table.

[0023] The target lighting combination is a combination of navigation lights and signal lights on the ship that need to be turned on or off. The navigation lights and signal lights can be foremast lights, port and starboard lights, stern lights, anchor lights, etc.

[0024] The pre-stored collision avoidance rule mapping table in this embodiment can be a mapping table of navigation light signals that conform to the International Maritime Collision Avoidance Regulations (1972) or a mapping table of navigation light signals that conform to the Inland Waterway Collision Avoidance Regulations of the People's Republic of China. The choice can be made according to the actual situation and is not limited here.

[0025] The control unit 10 can be deployed in the ship's bridge console. It can be an industrial-grade embedded computer that runs dedicated ship lighting control software and is equipped with a human-machine interface (HMI).

[0026] Control commands are commands that control the on / off state of each lamp in the target lighting assembly.

[0027] Specifically, the control unit can determine the navigation status based on the ship's navigation information and generate control commands for the target light combination corresponding to the navigation status according to a pre-stored collision avoidance rule mapping table. This achieves the automatic and accurate conversion of the navigation status into physical control commands for the target light combination. The control unit 10 sends the control commands to an intelligent lighting terminal that integrates the corresponding lights of each light in the target light combination. In this embodiment, the control unit automatically sets the target light combination that conforms to the rules according to the navigation status, reducing human error, improving safety, and realizing intelligent control of the ship's navigation lights and signal lights.

[0028] An adaptive communication unit 20 is connected to the control unit 10 and the ship's power line network 30. It is used to select a target power line carrier modulation mode according to the communication quality parameters of the power line network 30, and transmit the control command through the power line network 30 based on the target power line carrier modulation mode.

[0029] In this context, the power line network 30 refers to a communication network using Power Line Carrier Communication (PLC) mode. Communication quality parameters can be signal-to-noise ratio or signal attenuation. The adaptive communication unit 20 is connected to the control unit 10 and coupled to the power line network 30.

[0030] The inventors discovered that data can be transmitted directly using power lines, avoiding additional wiring. However, the marine power line environment is complex, exhibiting problems such as high noise interference, drastic impedance changes, and severe signal attenuation. Conventional PLC technology is not highly reliable in marine environments, posing challenges for direct application to navigation light control. While existing technologies have attempted to automatically control navigation light combinations, none have effectively solved the fundamental problems of complex wiring and communication reliability in the special marine environment. Therefore, in this embodiment, an adaptive communication unit 20 is used to dynamically switch modulation modes, enabling high-speed data transmission under favorable conditions while ensuring no command loss under heavy interference, thereby significantly improving the system's reliability and robustness.

[0031] Specifically, the adaptive communication unit 20 detects the power line channel quality of the ship in real time and dynamically selects either broadband or narrowband modulation for communication to ensure reliable transmission of control commands in complex electromagnetic environments. Furthermore, this embodiment utilizes the existing ship's power line network for data transmission, significantly reducing the need for dedicated control cables, greatly simplifying wiring, and solving the problems of complex wiring and low data transmission reliability in traditional control systems, thus ensuring communication reliability.

[0032] At least one smart lighting terminal 40, each smart lighting terminal corresponding to one lighting fixture, the smart lighting terminal 40 is communicatively connected to the adaptive communication unit 20 and the control unit 10 through the power line network 30, and is used to receive and execute the control commands through the power line network 30, and to detect the status information of the corresponding lighting fixture in real time, and to feed back the status information to the control unit 10 through the power line network 30.

[0033] Each lamp is equipped with a smart lamp terminal 40. The smart lamp terminal 40 is physically and communicatively connected to the power line network 30, and logically connected to the control unit 10 and the adaptive communication unit 20 based on the network.

[0034] Specifically, the intelligent lighting terminal 40 receives control commands sent by the control unit 10 through the power line network 30, determines the LEDs of the lamps in the target lighting combination according to the control commands, and monitors the status (electrical information) of the lamps in real time and feeds it back to the control unit 10, completing the closed-loop control from status decision to execution verification. This realizes remote, online, and accurate monitoring of the status information of each lamp. The feedback mechanism of the intelligent lighting terminal 40 forms a reliable verification of the execution result of the control commands. Through the two-way confirmation mechanism, it provides double protection for the status of the ship's navigation lights, improving the safety of ship navigation and maintenance efficiency.

[0035] Understandably, the ship navigation signal light control system of this embodiment realizes one-click intelligent control of ship navigation signals and real-time monitoring and feedback of the status information of each light. At the same time, by utilizing the existing ship power line network and combining it with an adaptive communication unit, it avoids laying a large number of dedicated control cables, reduces installation costs and complexity, and ensures communication reliability. It can balance simplified wiring, intelligent control and status monitoring.

[0036] In summary, the ship navigation signal light control system provided by this invention includes: a control unit, used to determine the ship's navigation state and generate control commands for a target light combination corresponding to the navigation state based on a pre-stored collision avoidance rule mapping table, reducing human error, improving safety, and realizing intelligent control of ship navigation signals; and an adaptive communication unit, connected to the control unit and the ship's power line network, used to select a target power line carrier modulation mode based on the communication quality parameters of the power line network, and transmit control commands through the power line network based on the target power line carrier modulation mode, dynamically selecting broadband or narrowband modulation for communication to ensure reliable transmission of control commands in complex electromagnetic environments, and utilizing existing ship... The ship's power line network facilitates data transmission, significantly simplifying wiring. At least one intelligent lighting terminal, each corresponding to one lighting fixture, communicates with the adaptive communication unit and control unit via the power line network. This terminal receives and executes control commands through the power line network, monitors the status information of the corresponding lighting fixture in real time, and feeds back the status information to the control unit. This enables remote, online, and precise monitoring of the status information of each lighting fixture, and the feedback mechanism provides reliable verification of the control command execution results. Through a two-way confirmation mechanism, dual protection is provided for the ship's navigation light status, balancing simplified wiring, intelligent control, and status monitoring, thereby improving ship navigation safety and maintenance efficiency.

[0037] In some embodiments of the present invention, such as Figure 2 As shown, the control unit 10 includes: The status determination module 101 is used to determine the navigation status based on the navigation information of the vessel; The strategy storage module 102 stores the collision avoidance rule mapping table, which is used to record the correspondence between different navigation states and the combination of lights that need to be turned on and off. The instruction generation module 103 is used to query the strategy storage module according to the navigation status and generate control instructions for each lamp in the target lamp combination.

[0038] The instruction generation module 103 is communicatively connected to the status judgment module 101 and the policy storage module 102.

[0039] Specifically, the control unit 10, as the core of the ship's navigation signal light control system, includes a status judgment module 101, a strategy storage module 102, and a command generation module 103. It is used to determine the ship's navigation status (such as underway, anchored, out of control, towed, etc.) and generate control commands for the corresponding target light combinations. The status judgment module 101 automatically parses navigation information, the strategy storage module 102 provides authoritative rules, and the command generation module 103 automatically generates commands. The entire decision-making process eliminates the need for crew members to manually memorize and operate multiple switches, avoiding light signal errors due to human negligence and improving navigation safety.

[0040] In some embodiments of the present invention, the state determination module is specifically used to: acquire navigation parameters through ship sensors or receive manual input commands to determine the navigation state.

[0041] Specifically, a preset algorithm can be run within the navigation status determination module to perform fusion analysis on navigation parameters and determine the navigation status. Alternatively, the received manual input commands can be parsed to determine the navigation status, thereby improving the overall reliability of status determination.

[0042] In one specific implementation, the navigation status determination module runs a preset algorithm to perform fusion analysis on multi-source navigation parameters. For example, when the speed is detected to be 0 knots, the GPS position is fixed, and the main engine is in a stopped state, the navigation status is automatically determined to be "anchored". When a manual input command is received from the crew via dedicated buttons on the touch screen (such as "on the move", "anchored", "towing", "out of control"), the target navigation status command is directly input.

[0043] It should be noted that explicit manual input instructions are given priority. If no manual input instructions are received, the navigation status is automatically determined by obtaining navigation parameters from the ship's sensors.

[0044] In some embodiments of the present invention, such as Figure 3 As shown, the adaptive communication unit 20 includes: The channel monitoring module 201 is used to acquire the communication quality parameters of the power line network in real time. The mode selection module 202 is used to dynamically switch between a broadband power line carrier modulation mode and a narrowband power line carrier modulation mode according to the communication quality parameters, so as to select the target power line carrier modulation mode.

[0045] Specifically, the communication quality parameters of the power line network are obtained through real-time monitoring by the channel monitoring module 201. Before the communication quality critical point arrives, the mode selection module 202 actively switches from the high-speed but interference-prone broadband power line carrier modulation mode to the low-speed but highly interference-prone narrowband power line carrier modulation mode. This fundamentally avoids communication interruption or command errors caused by sudden channel degradation, ensures that the control commands of navigation lights and signal lights can be reliably delivered, and enhances the robustness of the system under all operating conditions.

[0046] Understandably, in this embodiment, the optimal communication strategy is automatically matched through the channel monitoring module 201 and the mode selection module 202, thereby improving the overall robustness and adaptability of the entire navigation light control system under different navigation stages and operating conditions. Furthermore, by utilizing existing ship power line communication, the laying of a large number of dedicated control cables is avoided, reducing installation costs and complexity, and solving the bottleneck problem of the complex ship power line environment and the low reliability of conventional PLCs.

[0047] In some embodiments of the present invention, the mode selection module is specifically used to: select a broadband modulation mode based on orthogonal frequency division multiplexing technology when the communication quality parameter is higher than a preset quality threshold; and select a narrowband modulation mode based on direct sequence spread spectrum technology when the communication quality parameter is lower than the preset quality threshold.

[0048] Among them, the preset quality threshold is a critical parameter threshold used to judge the quality of communication. It can be determined based on empirical values ​​set by a large amount of ship power line channel test data and communication stability verification.

[0049] Specifically, the adaptive communication unit has two modes: Broadband Power Line Carrier (BPLC) and Narrowband Power Line Carrier (NPLC). It monitors the communication quality parameters of the power line network, such as the signal-to-noise ratio, in real time and dynamically selects the communication mode according to channel conditions: when the channel conditions are good, it adopts the broadband modulation mode based on Orthogonal Frequency-Division Multiplexing (OFDM) technology for high-speed data transmission; when the channel conditions are poor, it automatically switches to the narrowband modulation mode based on Direct Sequence Spread Spectrum (DSSS) technology to ensure communication reliability.

[0050] In one specific implementation, such as Figure 4 The diagram shows the internal functional block diagram of the adaptive communication unit, which includes a quality monitoring module, a mode selection and control module, a wideband (BPLC) modulation module, a narrowband (NPLC) modulation module, and a signal coupling and isolation module. Its workflow is a closed-loop adaptive process based on real-time feedback, specifically as follows: Signal Input and Channel Assessment: The control command data stream from the navigation light and signal control unit is first input to the adaptive carrier communication unit. The channel monitoring module continuously samples signals from the ship's power line network through a high-impedance coupling circuit. This module analyzes the sampled signals in real time, calculates key channel quality parameters, mainly including signal-to-noise ratio and signal attenuation, and reports these parameters to the mode selection and control module in real time.

[0051] Dynamic Decision-Making of Communication Mode: The mode selection and control module, as the core decision-maker of the unit, has pre-stored switching thresholds. It receives real-time parameters reported by the channel monitoring module and compares them with the preset thresholds, executing the following logic: When the signal-to-noise ratio (SNR) is detected to be higher than the first preset threshold (indicating excellent channel conditions and low interference), the module determines to adopt a high-speed communication strategy, activates the wideband (BPLC) modulation module, and enables it to use orthogonal frequency division multiplexing (OFDM) technology to modulate the input control command data at high speed. When the SNR is detected to be lower than the second preset threshold (indicating poor channel conditions and high interference), to ensure reliable arrival of commands, the module decides to activate a high anti-interference mode. It closes the wideband modulation path and activates the narrowband (NPLC) modulation module, enabling it to use direct sequence spread spectrum (DSSS) technology to modulate the same control command data. DSSS technology effectively combats narrowband noise and deep attenuation through spreading gain; although the data rate decreases, the reliability is greatly improved.

[0052] Signal modulation and injection: The signals processed by the broadband or narrowband modulation module are all high-frequency carrier signals suitable for transmission on power lines.

[0053] Signal network transmission: Control command signals, which have been modulated and coupled to the power lines, will propagate along the ship's power line network to every smart lighting terminal connected to the network.

[0054] In some embodiments of the present invention, the control unit is further configured to receive status information fed back by the smart lighting terminal and perform lighting status monitoring based on the status information.

[0055] Specifically, the control unit receives status information from the intelligent lighting terminal and monitors the status of the lighting fixtures based on the status information, realizing closed-loop control of feedback and analysis of the status information of the lighting fixtures. This enables the control unit to grasp the real health status of each lighting fixture in real time and accurately, thereby improving the safety redundancy of ship navigation.

[0056] It is worth noting that the historical status information of all lamps can be stored in the memory of the control unit 10 to generate maintenance reports, which can be used to analyze the life cycle of the lamps and provide data support for predictive maintenance.

[0057] In some embodiments of the present invention, the status information includes at least one of the operating current, operating voltage, and power parameters of the lamp in the intelligent lighting terminal.

[0058] In some embodiments of the present invention, the control unit is further configured to analyze the status information fed back by the smart lighting terminal, trigger an alarm when the status information is abnormal, and indicate the location of the abnormal lighting fixture.

[0059] Specifically, the control unit analyzes the status information fed back by the smart lighting terminal, and determines when an anomaly has occurred. Triggering audible and visual alarms enables precise location and early warning of faulty lights, shortening fault location time and improving ship maintenance efficiency.

[0060] It is worth noting that the location of faulty lights can also be displayed on the graphical interface, making the location of faulty lights more intuitive and facilitating rapid location.

[0061] It is worth further explaining that alarm records for all lighting fixtures can be stored in the memory of the control unit 10 to generate maintenance reports for analyzing fault modes and providing data support for predictive maintenance.

[0062] In some embodiments of the present invention, such as Figure 5 As shown, the intelligent lighting terminal 40 includes: The carrier communication module 401 is used to couple signals from the power line network and demodulate control commands, and to modulate and feed state information into the power line network. The drive control module 402 is connected to the carrier communication module and the corresponding lamp, and is used to drive the lamp according to the demodulated control command. The status detection module 403 is used to collect the status parameters of the lamp and send the status parameters as status information to the carrier communication module.

[0063] Specifically, the status detection module 403 of the intelligent lighting terminal 40 periodically collects the status information of the driven LED light source, such as the operating current and operating voltage, and packages this status information into digital status messages. These messages are modulated by the carrier communication module 401 of the intelligent lighting terminal and fed into the power line network. The control unit continuously receives these status messages from each intelligent lighting terminal 40 from the power line network through the adaptive communication unit 20, and unpacks and parses them to extract the unique identifier (such as an address code) of each lighting fixture and its corresponding real-time current and voltage values.

[0064] The demodulated control commands are transmitted to the drive control module 402. This drive control module 402 consists of a microcontroller and power electronic circuitry (such as a constant current drive chip). The microcontroller parses the content of the control commands and generates corresponding pulse width modulation signals or switching signals, controlling the power circuitry to drive the connected LED lights with precise current and voltage, causing them to light up, turn off, or adjust their brightness according to the control commands.

[0065] During lamp operation, the status detection module 403 continuously monitors the system. This module includes high-precision sampling circuitry (such as sampling resistors and analog-to-digital converters) to collect key status parameters of the lamp circuit in real time, primarily including operating current and terminal voltage. This real-time data is encapsulated into status information messages and sent back to the carrier communication module 401. The carrier communication module 401 utilizes its modulation function to modulate the status information into a high-frequency carrier signal, which is then fed back into the power line network via a coupling circuit. Thus, the status information is transmitted back to the adaptive communication unit and control unit along the path opposite to the command issued.

[0066] The carrier communication module 401, drive control module 402, and status detection module 403 work together to make each smart lighting terminal an intelligent node with sensing, execution, and communication capabilities. The downlink of control commands and the uplink of status information realize bidirectional communication and intelligent control of the smart lighting terminal 40, improving the accuracy and intelligence of navigation signal light control.

[0067] In another specific implementation, such as Figure 6 The diagram shown is an architecture diagram of a ship's navigation signal control system. It consists of a navigation signal control unit, an adaptive carrier communication unit, a ship's power line network, and multiple distributed navigation signal terminals. All components are physically connected and exchange data via the ship's power line network, as detailed below: The navigation light and signal light control unit, as the core decision-making and monitoring center of the system, is typically installed in the ship's bridge. It is directly connected to the adaptive carrier communication unit via a data interface, responsible for generating control commands and receiving status feedback information. The adaptive carrier communication unit, as the core communication hub, connects to the control unit on one end and is coupled to the ship's power line network on the other. This unit is responsible for converting and adapting control commands to power line carrier signals. The ship's power line network, as the shared data transmission medium for the system, utilizes the ship's existing power supply lines (such as a 220V AC network), providing power to the lights and providing a transmission channel for control signals. Multiple navigation light and signal light terminals (such as foremast light terminals, port light terminals, starboard light terminals, stern light terminals, anchor light terminals, etc.) are distributed and installed in corresponding locations on the ship. Each terminal is connected in parallel or coupled to the same ship's power line network through its access point, thereby achieving communication connection with the adaptive carrier communication unit.

[0068] Its data flow and system workflow form a two-way closed loop of control and feedback, specifically as follows: Downlink control flow (command issuance): The path of control commands begins at the navigation light and signal control unit. The control unit generates commands based on the navigation status and first sends them to the adaptive carrier communication unit. This unit processes and modulates the commands before injecting them into the ship's power line network. The commands are transmitted over the network as carrier signals and are ultimately received, demodulated, and executed by the target navigation light and signal terminal.

[0069] Uplink feedback stream (status feedback): As shown by the arrow, the path for status information is reversed. Each navigation light and signal light terminal monitors the operating parameters (current, voltage) of the driven lights in real time and modulates this status information into a carrier signal, which is then uploaded through the ship's power line network. This signal is demodulated and forwarded by the adaptive carrier communication unit and finally delivered to the navigation light and signal light control unit for status display, monitoring, and fault alarm.

[0070] In another specific implementation, taking a medium-sized cargo ship as an example, such as Figure 7 The diagram shown is a schematic of the human-machine interface of the control unit, as detailed below: The navigation light and signal light control unit is installed on the bridge control console, featuring a touchscreen interface and integrating ship navigation equipment, primarily fiber optic compass, AIS, BeiDou, depth sounder, electronic charts, and radar. The adaptive carrier communication unit is installed near the ship's electrical panel. Each navigation light and signal light terminal (such as the foremast light, port and starboard lights, stern light, anchor light, etc.) is equipped with a smart terminal compliant with marine environmental requirements. The system utilizes the ship's existing 220V AC power line network for data transmission. Based on navigation equipment data, the system determines the ship's current navigation status, shifting from "underway" to "anchored." The navigation light and signal light control unit's navigation status determination module confirms the current status as "anchored," and the control command generation module queries the navigation light strategy storage module to determine that the light to be illuminated is the "foremast light." The navigation light and signal light control unit generates a command to illuminate the "foremast light" and sends it to the adaptive carrier communication unit. The adaptive carrier communication unit monitors the power line channel quality in real time and adaptively selects a broadband communication mode to couple the command to the power line. The terminal of the target "front anchor light" demodulates the command from the power line to drive the LED to light up. Simultaneously, its status detection circuit monitors the lamp's operating current and voltage within normal ranges and feeds this status information back to the main control device via power line carrier communication. The main control device receives and displays that the "front anchor light" is working normally. If a lamp fails to respond or its parameters are abnormal, the system will trigger an audible and visual alarm and locate the fault.

[0071] like Figure 8 As shown, the present invention also provides a method for controlling ship navigation lights. Figure 8 A schematic flowchart of an embodiment of the ship navigation signal light control method provided by the present invention is shown. The method includes: S801. Determine the current navigation status of the vessel; S802. Based on the current navigation state and the pre-stored collision avoidance rule mapping table, generate control commands for the target navigation light combination; S803. Obtain the current communication quality parameters of the ship's power line network; S804. Based on the current communication quality parameters, adaptively select the target power line carrier modulation mode; S805. Using the target power line carrier modulation mode, the control command is sent to the corresponding smart lighting terminal through the power line network; S806. Control the intelligent lighting terminal to execute the control command and collect the status information of the corresponding lighting fixture; S807. The status information is fed back through the ship's power line network.

[0072] It should be noted that in the embodiments of the ship navigation signal light control method described above, please refer to the corresponding description in the ship navigation signal light control system above, and the beneficial effects that can be achieved can also be referred to the beneficial effects described above, which will not be repeated here.

[0073] For embodiments of the ship navigation signal light control method, please refer to the steps executed by the corresponding processing unit in the above text. For other embodiments of the ship navigation signal light control method that are not described, please refer to the corresponding content mentioned above, and will not be repeated here.

[0074] Based on the above control method, the present invention also provides a computer-readable storage medium that stores one or more programs, which can be executed by one or more processors to achieve the functions of the control methods described in the above embodiments.

[0075] Those skilled in the art will understand that all or part of the processes of the methods described in the above embodiments can be implemented by a computer program instructing related hardware, and the program can be stored in a computer-readable storage medium. The computer-readable storage medium may be a disk, optical disk, read-only memory, or random access memory, etc.

[0076] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A ship navigation signal light control system, characterized in that, The ship navigation signal light control system includes: The control unit is used to determine the navigation status of the ship and generate control commands for the target lighting combination corresponding to the navigation status according to a pre-stored collision avoidance rule mapping table. An adaptive communication unit, connected to the control unit and the ship's power line network, is used to select a target power line carrier modulation mode according to the communication quality parameters of the power line network, and transmit the control command through the power line network based on the target power line carrier modulation mode; At least one smart lighting terminal, each smart lighting terminal corresponding to one lighting fixture, the smart lighting terminal is communicatively connected to the adaptive communication unit and the control unit through the power line network, and is used to receive and execute the control commands through the power line network, and to detect the status information of the corresponding lighting fixture in real time, and to feed back the status information to the control unit through the power line network.

2. The ship navigation signal light control system according to claim 1, characterized in that, The control unit includes: The status determination module is used to determine the navigation status based on the navigation information of the vessel. The strategy storage module stores the collision avoidance rule mapping table, which is used to record the correspondence between different navigation states and the combination of lights that need to be turned on and off. The instruction generation module is used to query the strategy storage module based on the navigation status and generate control instructions for each lamp in the target lamp combination.

3. The ship navigation signal light control system according to claim 2, characterized in that, The state determination module is specifically used for: The navigation status is determined by acquiring navigation parameters through ship sensors or receiving manual input commands.

4. The ship navigation signal light control system according to claim 1, characterized in that, The adaptive communication unit includes: The channel monitoring module is used to acquire the communication quality parameters of the power line network in real time. The mode selection module is used to dynamically switch between a broadband power line carrier modulation mode and a narrowband power line carrier modulation mode according to the communication quality parameters, so as to select the target power line carrier modulation mode.

5. The ship navigation signal light control system according to claim 4, characterized in that, The mode selection module is specifically used for: When the communication quality parameters are higher than a preset quality threshold, a broadband modulation mode based on orthogonal frequency division multiplexing technology is selected. When the communication quality parameters are lower than a preset quality threshold, a narrowband modulation mode based on direct sequence spread spectrum technology is selected.

6. The ship navigation signal light control system according to claim 1, characterized in that, The control unit is also used to receive status information fed back by the smart lighting terminal and to monitor the status of the lighting fixture based on the status information.

7. The ship navigation signal light control system according to claim 6, characterized in that, The status information includes at least one of the following: the operating current, operating voltage, and power parameters of the lamp in the smart lighting terminal.

8. The ship navigation signal light control system according to claim 6, characterized in that, The control unit is also used to analyze the status information fed back by the smart lighting terminal, trigger an alarm when the status information is abnormal, and indicate the location of the abnormal lighting fixture.

9. The ship navigation signal light control system according to claim 2, characterized in that, The intelligent lighting terminal includes: A carrier communication module is used to couple signals from the power line network and demodulate control commands, and to modulate and feed status information into the power line network. A drive control module is connected to the carrier communication module and the corresponding lamp, and is used to drive the lamp according to the demodulated control command; The status detection module is used to collect the status parameters of the lamp and send the status parameters as status information to the carrier communication module.

10. A control method applied to a ship navigation signal light control system according to any one of claims 1 to 9, the method comprising: Determine the ship's current navigation status; Based on the current navigation status and the pre-stored collision avoidance rule mapping table, a control command for the target navigation light combination is generated; Obtain the current communication quality parameters of the ship's power line network; Based on the current communication quality parameters, the target power line carrier modulation mode is adaptively selected; Using the target power line carrier modulation mode, the control command is sent to the corresponding smart lighting terminal through the power line network; The intelligent lighting terminal is controlled to execute the control command and collect the status information of the corresponding lighting fixture; The status information is fed back through the ship's power line network.

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