Aircraft lighting, aircraft lighting control device and control method

Abstract

This invention discloses a navigation aid light fixture, a navigation aid light fixture control device, and a control method, belonging to the field of navigation aid lighting and its monitoring. It includes: an FPGA module, a signal conditioning module, a wireless communication module, an AC / DC module, an LED driver module, an isolation transformer, and a signal coupling module. The AC / DC module converts the constant current output of the isolation transformer into DC power, providing operating power to the LED driver module, FPGA module, signal conditioning module, and wireless communication module. This invention achieves accurate identification of the light fixture's input light level and precise light intensity output. It optimizes the power line carrier networking method for the navigation aid light serial circuit, significantly reducing the networking time after power-on, enabling plug-and-play functionality. It receives remote control commands via wireless and power line carrier communication to control the navigation aid light's on / off and flashing functions, and can also achieve specified light intensity output, meeting the needs of single-lamp detection and light guidance.

Description

Technical Field

[0001] This invention relates to the field of navigation lights and their monitoring, and more specifically, to a navigation light fixture, a navigation light fixture control device, and a control method. Background Technology

[0002] Airport navigational lighting systems are a crucial component of ensuring normal airport operations, serving as essential visual navigation aids for aircraft to take off, land, and taxi smoothly at night and in complex weather conditions. Currently, to improve airport operational efficiency, Level IV Advanced Surface Movement Guidance and Control Systems (A-SMGCS) guide aircraft, vehicles, and moving targets by controlling the illumination of taxiway centerline lights or stop row lights in segments or individually, a widely accepted approach in the industry.

[0003] Currently, mainstream navigational lighting single-lamp monitoring systems use power line carrier communication. However, due to many unfavorable factors such as the long airport operating circuit being susceptible to external noise interference, the degradation of the circuit's own line performance, and the impact of water storage in the lamp barrel, the channel characteristics of different frequency bands on the navigational lighting cables vary greatly and are sometimes variable. Navigational lighting status monitoring and lighting guidance systems using a single power line carrier communication method can hardly fully meet the operational requirements of Level IV A-SMGCS.

[0004] The Civil Aviation Administration of China (CAAC) clearly stated in the "Roadmap for New Generation Aviation Broadband Communication Technology in China's Civil Aviation" that it will vigorously promote the application of new generation aviation broadband communication, build a civil aviation 5G network that combines public and private services, actively construct a world-class modern civil aviation communication infrastructure system, and help build and operate a smart civil aviation transportation system. Existing airports are gradually shifting from 4G private networks to deploying 5G airport surface broadband mobile communication networks.

[0005] CN 113382505A discloses a navigation light drive control device based on broadband power line carrier communication. Although it solves the problem of separation between the light fixture and the light fixture controller in existing navigation light monitoring systems and proposes a navigation light drive control device based on broadband power line carrier communication that combines the functions of a single light monitoring module and a navigation light fixture, it does not fundamentally solve the reliability and real-time requirements of power line carrier communication in the field of navigation light applications. CN 112867215A discloses a 5G smart navigation light and its usage method, and CN115307091A discloses a navigation light. Although they adopt wireless communication, they do not provide specific implementation methods or solutions for extreme operating conditions such as signal coverage obstruction during aircraft taxiing, which poses operational risks to the system. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a navigation light fixture, a navigation light fixture control device, and a control method. It optimizes the power line carrier networking method for the serial circuit of the navigation light fixture, which can greatly reduce the networking time after the navigation light fixture is powered on, realize plug and play, receive remote control commands through wireless and power line carrier communication to control the navigation light fixture to turn on, off, and flash, and can also realize specified light intensity output to meet the needs of single lamp detection and light guidance.

[0007] The objective of this invention is achieved through the following solution:

[0008] A navigation light control device, comprising:

[0009] The system includes an FPGA module, a signal conditioning module, a communication module, an AC / DC module, an LED driver module, an isolation transformer, and a signal coupling module. The communication module comprises a power line carrier communication module and a wireless communication module. The navigation lights utilize a combination of these two communication methods to receive remote control commands and adjust the output light level brightness, enabling control of the lights' on / off and flashing states. The AC / DC module converts the constant current output of the isolation transformer into DC power to provide operating power for the LED driver module, FPGA module, signal conditioning module, and wireless communication module.

[0010] The signal coupling module has a reserved signal line interface for providing an interface when the system uses broadband power line carrier communication; at the same time, when the system uses narrowband power line carrier communication, the coupling module is also used to filter out noise, extract the carrier signal from the power line, and send it to the signal conditioning module for preprocessing.

[0011] Furthermore, the signal conditioning module includes a carrier signal conditioning unit and an input current waveform signal conditioning unit; the carrier signal conditioning unit includes an input signal conditioning module and a signal output conditioning module. The input signal conditioning module performs high-speed sampling of the carrier signal sent by the signal coupling module, converts it into a digital signal, and sends it to the FPGA module for processing; the FPGA module converts the data to be transmitted into a differential analog signal through the signal output conditioning module and couples it to both ends of the isolation transformer input line; the FPGA module provides control signals EN1 and EN2 for driving the signal coupling module to select whether to receive the signal from the power line or couple the data to be transmitted to the power line; the input current waveform signal conditioning unit includes an ADC module, the FPGA module controls the conversion timing of the ADC module, and performs serial-to-parallel conversion on the output result of the ADC module for data processing. When a certain level of light input is detected, the output current value of the LED module is controlled to make the LED beads output the light intensity of the certain level of light;

[0012] The FPGA module includes a timing processing module, a carrier data processing module, a wireless module interface initialization module, a function control module, and a storage module. The timing processing module is used to process the operating timing of the AC / DC module, the LED driver module, and the power line carrier signal conditioning and modulation / demodulation timing. The carrier data processing module is a power line carrier communication protocol implementation unit, integrating physical layer, data link layer, and application layer protocols, and is configured with a fixed MAC address for precise location of the lamps and individual lamp control. The wireless module interface initialization module is used to complete wireless module identification, dial into the network according to the identified module, and establish a connection. The function control module is used for light level detection, light level output control, and lamp on / off control. The lamp light level output control adopts two control methods: current input control and external command. When a control command is received, it is parsed, and the lamp's on / off and flashing control are implemented based on the parsing results, as well as the lamp's operating status is reported.

[0013] The storage module is used to store the FPGA's running program;

[0014] The wireless communication module receives and transmits data through an antenna, and sends the demodulated data to the FPGA module for processing through a communication interface. The FPGA module interacts with the wireless communication module and controls the working status of the wireless communication module after it is powered on.

[0015] Furthermore, the LED driver module circuit includes resistors, capacitors, inductors, and a buck control driver U1. The FPGA module, based on the acquired input current value or received light level command, sets LED_CH1_EN and LED_CH1_ADJ enable U1, controlling the MOSFET Q1 to turn on or off. Current flows through resistor R4, Q1, and inductor L1, providing the LED bead with operating current I. LED On the other hand, it also stores energy in inductor L1. When the current exceeds the preset threshold, the voltage across R4 triggers U1 to turn off Q1. R5 and C3 set the turn-off time T, the value of which is obtained by the following formula: C is the circuit parasitic capacitance, and V is the preset voltage.

[0016]

[0017]

[0018]

[0019] R1 and R2 are configured for undervoltage protection. When the input power supply VCC_LED is lower than the design value, the U1 control pin PGATE turns off the MOSFET Q1. J1 is a connector connected to the LED chip. D1 is a freewheeling diode, D is the duty cycle, and f is the voltage drop factor.SW V is the switching frequency. O C3 is the output voltage, C4 is the off-time constant setting capacitor, η is the conversion efficiency, and K is the LED output current adjustment coefficient.

[0020] Furthermore, it also includes a power selection unit. The isolation transformer includes isolation transformer A and isolation transformer B, and the LED driver module includes LED driver module A and LED driver module B. The input of isolation transformer A supplies power to LED driver module A through an AC / DC module, and the input of isolation transformer B supplies power to LED driver module B through an AC / DC module. The digital power generated by isolation transformers A and B after passing through the AC / DC module respectively supplies power to the control core FPGA module through the power selection unit, thereby achieving the purpose of dual-channel lamp drivers sharing a single control core.

[0021] Furthermore, it also includes an EMI protection circuit and a current detection circuit. The EMI protection circuit is used for electromagnetic shielding protection; the current detection circuit is used to detect the current value at the input terminal of the isolation transformer, and sets the output current of the LED driver module through the FPGA module according to the magnitude of the current value.

[0022] Furthermore, the wireless communication module supports three working modes: 4G, 5G, and 5G-A.

[0023] Furthermore, the FPGA module interacts with the wireless communication module via a serial port and a USB port.

[0024] Furthermore, the FPGA module controls the working state of the wireless communication module after power-on through the RESET signal, EN signal, and POWAKE interface.

[0025] Furthermore, the wireless module has a SIM card interface, which reads SIM card information after power-on initialization for subsequent dialing operations.

[0026] Furthermore, the power line carrier communication module is used to execute the following process:

[0027] For nodes that need to join the network, perform network clustering and networking according to the specified path to minimize the number of proxy nodes in the system; calculate the quantization matrix composed of the environmental parameters of the network nodes, and specify the operating frequency band for different relay levels based on the calculation results;

[0028] The nodes in each cluster are optimized for networking according to channel characteristic parameters; after networking is completed, the loop network management unit saves the currently generated routing table.

[0029] When the system is powered on again after a power outage, the loopback management unit first reads the routing table information in the memory after initialization. If the table is empty, the networking process is started; otherwise, the network is formed according to the routing table information in the memory. When one or more nodes in the system fail and leave the network, new communication nodes are replaced at the corresponding locations during maintenance. When the loopback management unit detects the new communication node, it sends a management frame to inform the new communication node to inherit the routing status information and update the routing table information in the memory, thus avoiding dynamic re-networking of the system.

[0030] A navigation light fixture integrates the navigation light fixture control device as described above with the light fixture itself; the navigation light fixture control device includes an antenna, and the light fixture includes a light fixture cavity and a light fixture cover; the antenna is a printed circuit board antenna, fixed in the light fixture cavity, and receives or transmits radio waves by opening multiple signal transmission slots on the light fixture cover.

[0031] A method for controlling navigation lights, implemented based on the navigation light control device described above, includes the following steps:

[0032] The LED driver module provides constant voltage and constant current output to the LEDs in the corresponding luminaire window to meet the specified light intensity requirements. Its output is five levels of light adjustable. When the driver is configured in single-input power supply mode, LED driver module A and LED driver module B are powered by the same AC / DC module. When the driver is configured in dual-input power supply mode, LED driver module A and LED driver module B are powered by different AC / DC modules and are independent of each other.

[0033] A method for controlling navigation lights, implemented based on any of the navigation light control devices described above, and the method includes the following system power-on workflow:

[0034] S1, after power-on, the AD / DC module obtains DC power to power the FPGA through the full-bridge rectifier circuit;

[0035] S2, after the FPGA module is initialized, the AD / DC module is adjusted to half-bridge working mode according to the load size, generating the working power of the LED driver module and the wireless module, and setting the corresponding channel output light level according to the detected input current result;

[0036] S3, the FPGA module initializes the carrier data processing module, starts listening to and receiving beacon frames sent by the Central Coordination Unit (CCO) of the power line carrier, and completes the network formation after confirmation;

[0037] S4, when the FPGA module detects the channel quality on the power line in real time, if it is lower than the preset value, the wireless communication module is woken up and the wireless transmission channel is started; if it is higher than the preset value, the power line carrier data channel is used.

[0038] S5: When a lighting malfunction is detected, the data transmission channel is immediately activated to report the malfunction.

[0039] A navigation light control method, implemented based on the navigation light control device described above, includes the following wireless module interface initialization process:

[0040] SS1: When a lighting fixture malfunction is detected, the data transmission channel is immediately activated to report the malfunction.

[0041] SS2 checks the SIM card status and network registration status. If a success flag is returned, proceed to the next step; otherwise, an error flag is returned, indicating that the wireless channel is unavailable.

[0042] SS3, dial. If successful, proceed to the next step; otherwise, repeat the dialing operation at a fixed time interval until successful.

[0043] SS4 establishes a TCP / IP connection with the server. If the connection is successful, data transmission can proceed; otherwise, the dialing process is returned.

[0044] A method for controlling navigation lights, implemented based on any of the navigation light control devices described above, and the method includes the following light control workflow:

[0045] T1 establishes a TCP / IP connection with the server. If the connection is successful, data transmission can proceed. If the connection fails, the dialing process is returned.

[0046] T2: After the FPGA module successfully parses the command, it executes the corresponding operation based on the command value and returns the execution result.

[0047] A navigation lighting control method, implemented based on the navigation lighting control device described above, wherein the calculation of a quantization matrix composed of environmental parameters of network nodes, and the specification of the operating frequency band for different relay levels based on the calculation results, specifically includes the following sub-steps:

[0048] Step 1: Set the quantified values ​​of environmental parameters faced by each node cluster in the navigation lighting system and the corresponding relay scene level. Each set of environmental parameters consists of four dimensions: cluster attenuation level, channel bandwidth level, transmission power level, and environmental noise level. Set the evaluation matrix A for the environmental parameters faced by each node cluster at each relay scene level:

[0049]

[0050] in, It is the quantized value of the t-th dimension in the v-th relay scenario level faced by the node cluster, t=1,2,3,4, v=1,2,…s, s is the total number of relay scenario levels, and v is the scenario level sequence number variable;

[0051] Step 2: Calculate the quantized value M of the environmental parameters for each node cluster. i :

[0052]

[0053]

[0054] in, The specific calculated and quantified values ​​of the environmental parameters for the i-th node cluster under the v-th relay scenario level, i = 1, 2, ..., k, v = 1, 2, ..., s, where k is the total number of loop node clusters;

[0055] Step 3, set the evaluation matrix for working frequency band selection under relay scenario level:

[0056]

[0057] in, This indicates that the j-th working frequency band is used for the v-th relay scenario level, where j = 1, 2, ..., p, v = 1, 2, ..., s, and p is the total number of prior working frequency bands;

[0058] Step 4: Calculate the quantization value Z of each node cluster after using p working frequency bands. i :

[0059]

[0060] in, This is the calculated quantized value after applying the j-th control strategy to the clustering of the i-th node;

[0061] Step 5: Based on actual needs, the i-th node is clustered from the calculated vector Z. i Select the maximum value to determine its corresponding operating frequency band.

[0062] The beneficial effects of this invention include:

[0063] This invention uses an FPGA as the control core to accurately identify the input light level of the luminaire and control the LED beads according to the identified light level to achieve precise light intensity output. It integrates the existing single-lamp monitoring module and the independent system of the navigation lights into a single unit, establishing a power line carrier communication protocol for the serial topology and relatively stable load of the navigation light power supply circuit. This significantly reduces the networking time after system power-on and enables plug-and-play functionality. By combining power line carrier and wireless communication, reliable control of the luminaire's on / off and flashing states can be achieved. Simultaneously, the LED driver unit can be controlled via commands to achieve specified light intensity output, meeting the needs of single-lamp detection and light guidance. Attached Figure Description

[0064] 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 these drawings without creative effort.

[0065] Figure 1 For navigation lighting control systems employing narrowband power line carrier communication technology;

[0066] Figure 2 For navigation lighting control systems employing broadband power line carrier communication technology;

[0067] Figure 3 This is a structural block diagram of the navigation light control device according to an embodiment of the present invention;

[0068] Figure 4 This is a structural block diagram of a power supply using a dual isolation transformer according to an embodiment of the present invention;

[0069] Figure 5 This is a circuit diagram of the signal conditioning module according to an embodiment of the present invention;

[0070] Figure 6 This is a circuit diagram of the LED driver module according to an embodiment of the present invention;

[0071] Figure 7 This is a flowchart illustrating the system power-on process according to an embodiment of the present invention.

[0072] Figure 8 This is a flowchart of the wireless module interface initialization module according to an embodiment of the present invention;

[0073] Figure 9 This is a flowchart illustrating the lighting control process according to an embodiment of the present invention. Detailed Implementation

[0074] All features disclosed in all embodiments of this specification, or steps in all methods or processes implied in the disclosure, may be combined and / or extended or replaced in any way, except for mutually exclusive features and / or steps.

[0075] First, let's introduce the current airport navigation lighting power supply system. When using narrowband power line carrier communication technology, Figure 1The system comprises a constant current dimmer (CCR), multiple isolation transformers connected in series via a primary cable, and luminaires. The constant current dimmer outputs a constant current, which flows sequentially through the primary cable core, the isolation transformers, and back to the constant current dimmer via the primary cable core. The power line carrier central coordination unit (CCO) couples the carrier signal to the input side of the high-voltage isolation transformer of the CCR and interacts with the edge computing gateway via a network cable. The luminaires are connected in series on the secondary side of the isolation transformers. They can receive control commands from the edge gateway, modulated by power line carrier, through the isolation transformers. Simultaneously, the luminaires can couple their own operating status information from the isolation transformers to the primary cable loop via power line carrier, and then upload it to the edge computing gateway for processing via the CCR and CCO. The luminaires can also receive control commands sent by the edge computing gateway through the base station via their antennas, and can also send their status information via their antennas, which is then forwarded by the base station to the edge computing gateway, thereby achieving overall lighting control and operating status monitoring of the luminaires.

[0076] When using broadband power line carrier communication technology Figure 2 The system consists of a constant current dimmer (CCR), multiple isolation transformers connected in series via a primary cable, and luminaires. The constant current dimmer outputs a constant current, which flows sequentially through the primary cable core, the isolation transformers, and back to the constant current dimmer via the primary cable core. The power line carrier central coordination unit (CCO) couples the carrier signal to the primary cable core and the shielded ground of the primary cable loop, and interacts with the edge computing gateway via a network cable. The luminaires are connected in series on the secondary side of the isolation transformers. They can receive control commands from the edge gateway, modulated by power line carrier, through a signal coupling unit. Simultaneously, the luminaires can couple their own operating status information from the signal coupling unit to the primary cable loop via power line carrier, and then upload it to the edge computing gateway for processing via the CCR and CCO. The luminaires can also receive control commands sent by the edge computing gateway through the base station via antennas, and can also send their status information via antennas, which is then forwarded by the base station to the edge computing gateway, thereby achieving overall lighting control and operating status monitoring of the luminaires.

[0077] This invention addresses existing single-lamp monitoring systems for navigation lights by proposing a navigation light control device, control method, and navigation lights, particularly taxiway centerline lights and their control method, aiming to solve at least the following problems:

[0078] 1) Resolve the issue of inaccurate reporting of lighting fixture malfunctions;

[0079] 2) This invention addresses the reliability issues of lighting fixtures responding to external commands for on / off control under a single power line carrier communication method, as well as the poor stability and real-time performance of lighting control caused by sudden changes in line signal quality in some areas. By utilizing this invention and by reducing and optimizing the existing low-voltage line power line carrier communication protocol, a customized power line carrier protocol is implemented through FPGA, solving the problems of long networking time and inability to send data in parallel.

[0080] 3) Solve the problem that the lamps cannot respond to external commands to control their on / off state in case of sudden situations such as signal interruption under a single wireless communication method;

[0081] 4) Integrating the lighting controller and the lighting fixture into one unit reduces costs and maintenance workload; by combining the two communication methods, the advantages of each method are combined to solve the problem of the difficulty and high cost of deploying redundant base stations at airports.

[0082] In a specific embodiment, the overall block diagram of the navigation light drive is as follows: Figure 3 As shown, the constant current output of the AC / DC module isolation transformer is converted into DC to provide power to the LED driver module, FPGA, signal conditioning module, and wireless communication module. It also includes EMI protection circuitry and current detection circuitry. The EMI protection circuitry consists of one line-to-line gas discharge tube, two line-to-ground gas discharge tubes, a varistor, a differential-mode inductor, and a filter capacitor. The current detection circuitry primarily detects the input current value of the isolation transformer and, based on this current value, sets the output current of the LED driver module via the FPGA.

[0083] Optional, such as Figure 4 As shown, to support the dual isolation transformer power supply method for both Side A and Side B LED driver modules, this luminaire driver can be configured to operate in the following mode: the input of isolation transformer A powers the Side A LED driver module via an AC / DC module, and the input of isolation transformer B powers the Side B LED driver module via an AC / DC module. The digital power generated by isolation transformers A and B after passing through the AC / DC module is used to power the control core FPGA via a selection switch, thus achieving the goal of sharing a single control core for both luminaire drivers.

[0084] When the system adopts narrowband power line carrier communication technology, the coupling module mainly filters out noise in the 50Hz AC and low-frequency bands, extracts the carrier signal from the power line, and sends it to the signal conditioning module for preprocessing. The signal coupling module reserves a signal line interface to provide an interface for the system to adopt broadband power line carrier communication technology.

[0085] The signal conditioning module comprises two functional parts: a carrier signal conditioning module and an input current waveform signal conditioning module. The carrier signal conditioning module includes an input signal conditioning module and an output signal conditioning module. The input signal conditioning module consists of a differential automatic gain amplifier and a differential high-speed ADC, which samples the carrier signal input from the signal coupling module at high speed, converts it into a digital signal, and sends it to the FPGA module for processing. The output signal conditioning module consists of a DAC and a signal driving circuit. The FPGA converts the data to be transmitted into a differential analog signal through the DAC, and then couples it to both ends of the isolation transformer input line via the signal driving circuit. Figure 5 As shown, the signal coupling module consists of a driver circuit U1, coupling capacitors C1 and C2, and a transformer T1. The FPGA provides control signals EN1 and EN2 to the driver circuit U1 to select whether to receive signals from the power line or couple data to be transmitted onto the power line. The input current waveform signal conditioning consists of a low-noise operational amplifier, a filter circuit, and an ADC. The FPGA controls the ADC conversion timing and performs serial-to-parallel conversion on the ADC output before data processing. When a first-level light input is detected, the output current value of the LED module is controlled to adjust the light intensity of the LED lamp bead to the first-level light intensity. A total of 5 levels of light adjustment are supported.

[0086] The FPGA module comprises a timing processing module, a carrier data processing module, a wireless module interface initialization module, a function control module, and a storage module. The timing processing module includes the operating timing of the AC / DC module, the LED driver module, and the power line carrier signal conditioning and demodulation timing. The carrier data processing module is the power line carrier communication protocol implementation unit, integrating physical layer, data link layer, and application layer protocols. It also configures a fixed MAC address for precise lamp location and individual lamp control. The wireless module interface initialization module identifies the wireless module, dials up to the network, and establishes a connection based on the identified module. The function control module includes light level detection, light level output control, and lamp on / off control. Lamp light level control can use both current input control and external command control. When a control command is received, it is parsed, and based on the parsed result, the on / off and flashing control of the lamp is implemented, as well as the lamp's operating status is reported. The storage module primarily stores the FPGA's running program.

[0087] The LED driver module consists of a Side A LED driver module and a Side B LED driver module, providing constant voltage and constant current output to the LEDs in the corresponding luminaire window to meet the specified light intensity requirements. Its output is five levels of light adjustable. When the driver is configured in single-input power supply mode, both Side A and Side B LED driver modules are powered by the same AC / DC module; when the driver is configured in dual-input power supply mode, Side A and Side B LED driver modules are powered independently by different AC / DC modules. The LED driver module circuit diagram is shown below. Figure 6 As shown, the FPGA module enables LED_CH1_EN and LED_CH1_ADJ U1 based on the acquired input current value or the received optical level command, controlling Q1 to turn on or off. Current flows through R4, Q1, and L1, providing the LED beads with operating current I. LED On the other hand, it also stores energy in inductor L1. When the current exceeds the preset threshold, the voltage across R4 triggers U1 to turn off Q1. R5 and C3 set the turn-off time T, the value of which can be obtained by formula (1). C is the parasitic capacitance of the circuit, and V is the preset voltage.

[0088]

[0089]

[0090]

[0091] R1 and R2 are configured for undervoltage protection. When the input power supply VCC_LED is lower than the design value, the U1 control pin PGATE turns off the MOSFET Q1. J1 is a connector connected to the LED bead, and D1 is a freewheeling diode.

[0092] The wireless module receives and transmits data via its antenna, and the demodulated data is sent to the FPGA module for processing through a communication interface. The wireless module supports 4G, 5G, and 5G-A operating modes. The FPGA module interacts with the wireless module via a serial port and a USB port. The FPGA module controls the wireless module's operating state after power-on through interfaces such as reset (RESET), enable (EN), and operating mode control (PEWAKE). The wireless module has a SIM card interface, which reads the SIM card information after power-on initialization for subsequent dialing operations. The AC / DC module provides a 3.8V DC power supply to the wireless module.

[0093] The antenna is a printed circuit board antenna, fixed inside the lamp housing. It receives or transmits radio waves by opening multiple signal transmission slots on the lamp cover.

[0094] The system power-on process is as follows: Figure 7 As shown, the specific steps include the following:

[0095] S1, after power-on, the AD / DC module obtains DC power to power the FPGA through the full-bridge rectifier circuit;

[0096] S2, after the FPGA module is initialized, the AD / DC module is adjusted to half-bridge working mode according to the load size, generating the working power of the LED driver module and the wireless module, and setting the corresponding channel output light level according to the detected input current result;

[0097] S3, the FPGA module initializes the carrier data processing module, starts listening to and receiving beacon frames sent by the Central Coordination Unit (CCO) of the power line carrier, and completes the network formation after confirmation;

[0098] S4, when the FPGA module detects the channel quality on the power line in real time, if it is lower than the preset value, the wireless communication module is woken up and the wireless transmission channel is started; if it is higher than the preset value, the power line carrier data channel is used.

[0099] S5: When a lighting malfunction is detected, the data transmission channel is immediately activated to report the malfunction.

[0100] The wireless module interface initialization process is as follows: Figure 8 As shown, the specific steps include the following:

[0101] SS1: When a lighting fixture malfunction is detected, the data transmission channel is immediately activated to report the malfunction.

[0102] SS2 checks the SIM card status and network registration status. If a success flag is returned, proceed to the next step; otherwise, an error flag is returned, indicating that the wireless channel is unavailable.

[0103] SS3, dial. If successful, proceed to the next step; otherwise, repeat the dialing operation at a fixed time interval until successful.

[0104] SS4 establishes a TCP / IP connection with the server. If the connection is successful, data transmission can proceed; otherwise, the dialing process is returned.

[0105] The lighting control process is as follows: Figure 9 As shown, the specific steps include the following:

[0106] T1 establishes a TCP / IP connection with the server. If the connection is successful, data transmission can proceed. If the connection fails, the dialing process is returned.

[0107] T2: After the FPGA module successfully parses the command, it executes the corresponding operation based on the command value and returns the execution result.

[0108] The communication module of this invention provides a network clustering method based on channel characteristic parameters. Nodes requiring network access are clustered and managed according to specified paths, minimizing the number of proxy nodes in the system. The network is optimized for nodes within each cluster based on channel characteristic parameters, eliminating the need for a relay-level convergence process and significantly reducing network setup time. Different operating frequency bands are allocated to different relay clustering areas based on a quantization matrix composed of environmental parameters such as cluster attenuation levels, channel transmission bandwidth, and transmission power levels of the network nodes. After network setup, the loopback management unit saves the currently generated routing table. When the system is powered on again after a power outage, the loopback management unit, after initialization, first reads the routing table information in memory. If it is empty, the network setup process begins; otherwise, it is performed according to the routing table information in memory. When one or more nodes fail and leave the network, new communication nodes are replaced at the corresponding locations during maintenance. When the loopback management unit detects a new communication node, it publishes a management frame to inform the new communication node to inherit the routing status information and automatically updates the routing table information in memory, eliminating the need for re-networking. Compared to existing technologies, this reduces network setup time.

[0109] In the networking process, the system applying this invention can, according to the actual loop layout diagram and reasonable network clustering, calculate a quantization matrix composed of environmental parameters such as cluster attenuation level, channel bandwidth level, transmission power level, and environmental noise level of its nodes. Based on the calculation results, the operating frequency bands for different relay levels are specified. The beneficial effect is that multiple data can be transmitted simultaneously on the same loop in different frequency bands, improving channel utilization. The method for selecting the relay operating frequency band for each node cluster in the navigation light clustering network is as follows:

[0110] 1) Set the quantified values ​​of environmental parameters faced by each node cluster in the navigation lighting system and the corresponding relay scene level. Each set of environmental parameters consists of four dimensions: cluster attenuation level, channel bandwidth level, transmission power level, and environmental noise level. Set the evaluation matrix A for the environmental parameters faced by each node cluster at each relay scene level:

[0111]

[0112] in, It is the quantized value of the t-th dimension in the v-th relay scenario level faced by the node cluster, t=1,2,3,4, v=1,2,…s, s is the total number of relay scenario levels, and v is the scenario level sequence number variable;

[0113] 2) Calculate the quantized value M of the environmental parameters for each node cluster. i :

[0114]

[0115]

[0116] in, The specific calculated and quantified values ​​of the environmental parameters for the i-th node cluster under the v-th relay scenario level, i = 1, 2, ..., k, v = 1, 2, ..., s, where k is the total number of loop node clusters;

[0117] 3) Set up the evaluation matrix for working frequency band selection under relay scenario level:

[0118]

[0119] in, This indicates that the j-th working frequency band is used for the v-th relay scenario level, where j = 1, 2, ..., p, v = 1, 2, ..., s, and p is the total number of prior working frequency bands;

[0120] 4) Calculate the quantization value Z of each node cluster after using p working frequency bands. i :

[0121]

[0122] in, This is the calculated quantized value after applying the j-th control strategy to the clustering of the i-th node;

[0123] 5) Based on actual needs, the i-th node cluster is derived from the calculated vector Z. i Select the maximum value to determine its corresponding operating frequency band.

[0124] It should be noted that, within the scope of protection defined in the claims of this invention, the following embodiments can be combined and / or extended or replaced in any logical manner from the above specific embodiments, such as the disclosed technical principles, disclosed technical features or implicitly disclosed technical features.

[0125] Example 1

[0126] A navigation light control device, comprising:

[0127] The system includes an FPGA module, a signal conditioning module, a communication module, an AC / DC module, an LED driver module, an isolation transformer, and a signal coupling module. The communication module comprises a power line carrier communication module and a wireless communication module. The navigation lights utilize a combination of these two communication methods to receive remote control commands and adjust the output light level brightness, enabling control of the lights' on / off and flashing states. The AC / DC module converts the constant current output of the isolation transformer into DC power to provide operating power for the LED driver module, FPGA module, signal conditioning module, and wireless communication module.

[0128] The signal coupling module has a reserved signal line interface for providing an interface when the system uses broadband power line carrier communication; at the same time, when the system uses narrowband power line carrier communication, the coupling module is also used to filter out noise, extract the carrier signal from the power line, and send it to the signal conditioning module for preprocessing.

[0129] Example 2

[0130] Based on Embodiment 1, the signal conditioning module includes a carrier signal conditioning unit and an input current waveform signal conditioning unit. The carrier signal conditioning unit includes an input signal conditioning module and a signal output conditioning module. The input signal conditioning module performs high-speed sampling of the carrier signal sent by the signal coupling module, converts it into a digital signal, and sends it to the FPGA module for processing. The FPGA module converts the data to be transmitted into a differential analog signal through the signal output conditioning module and couples it to both ends of the input line of the isolation transformer. The FPGA module provides control signals EN1 and EN2 for driving the signal coupling module to select whether to receive the signal from the power line or couple the data to be transmitted to the power line. The input current waveform signal conditioning unit includes an ADC module. The FPGA module controls the conversion timing of the ADC module and performs serial-to-parallel conversion on the output result of the ADC module for data processing. When a certain level of light input is detected, the output current value of the LED module is controlled to make the LED beads output the light intensity of the certain level of light.

[0131] The FPGA module includes a timing processing module, a carrier data processing module, a wireless module interface initialization module, a function control module, and a storage module. The timing processing module is used to process the operating timing of the AC / DC module, the LED driver module, and the power line carrier signal conditioning and modulation / demodulation timing. The carrier data processing module is a power line carrier communication protocol implementation unit, integrating physical layer, data link layer, and application layer protocols, and is configured with a fixed MAC address for precise location of the lamps and individual lamp control. The wireless module interface initialization module is used to complete wireless module identification, dial into the network according to the identified module, and establish a connection. The function control module is used for light level detection, light level output control, and lamp on / off control. The lamp light level output control adopts two control methods: current input control and external command. When a control command is received, it is parsed, and the lamp's on / off and flashing control are implemented based on the parsing results, as well as the lamp's operating status is reported.

[0132] The storage module is used to store the FPGA's running program;

[0133] The wireless communication module receives and transmits data through an antenna, and sends the demodulated data to the FPGA module for processing through a communication interface. The FPGA module interacts with the wireless communication module and controls the working status of the wireless communication module after it is powered on.

[0134] Example 3

[0135] Based on Embodiment 1, the LED driver module circuit includes resistors, capacitors, inductors, and a buck control driver U1. The FPGA module, based on the acquired input current value or received light level command, sets LED_CH1_EN and LED_CH1_ADJ enable U1, controlling the MOSFET Q1 to turn on or off. Current flows through resistor R4, Q1, and inductor L1, providing the LED bead with operating current I. LED On the other hand, it also stores energy in inductor L1. When the current exceeds the preset threshold, the voltage across R4 triggers U1 to turn off Q1. R5 and C3 set the turn-off time T, the value of which is obtained by the following formula: C is the circuit parasitic capacitance, and V is the preset voltage.

[0136]

[0137]

[0138]

[0139] R1 and R2 are configured for undervoltage protection. When the input power supply VCC_LED is lower than the design value, the U1 control pin PGATE turns off the MOSFET Q1. J1 is a connector connected to the LED chip. D1 is a freewheeling diode, D is the duty cycle, and f is the voltage drop factor. SW V is the switching frequency. O C3 is the output voltage, C4 is the off-time constant setting capacitor, η is the conversion efficiency, and K is the LED output current adjustment coefficient.

[0140] Example 4

[0141] Based on Embodiment 1, a power selection unit is also included. The isolation transformer includes isolation transformer A and isolation transformer B, and the LED driver module includes LED driver module A and LED driver module B. The input of isolation transformer A is connected to the AC / DC module to supply power to LED driver module A, and the input of isolation transformer B is connected to the AC / DC module to supply power to LED driver module B. The digital power generated by isolation transformers A and B after passing through the AC / DC module is used to supply power to the control core FPGA module through the power selection unit, thereby achieving the purpose of sharing a single control core for dual-channel lamp drivers.

[0142] Example 5

[0143] Based on Embodiment 1, it also includes an EMI protection circuit and a current detection circuit. The EMI protection circuit is used for electromagnetic shielding protection; the current detection circuit is used to detect the current value at the input terminal of the isolation transformer, and sets the output current of the LED driver module through the FPGA module according to the magnitude of the current value.

[0144] Example 6

[0145] Based on Example 1, the wireless communication module supports three working modes: 4G, 5G, and 5G-A.

[0146] Example 7

[0147] Based on Example 1, the FPGA module interacts with the wireless communication module via a serial port and a USB port.

[0148] Example 8

[0149] Based on Example 1, the FPGA module controls the working state of the wireless communication module after power-on through the RESET signal, EN signal, and POWAKE working mode control signal interface.

[0150] Example 9

[0151] Based on Embodiment 1, the wireless module has a SIM card interface, which reads SIM card information after power-on initialization for subsequent dialing operations.

[0152] Example 10

[0153] Based on Example 1, the power line carrier communication module is used to execute the following process:

[0154] For nodes that need to join the network, perform network clustering and networking according to the specified path to minimize the number of proxy nodes in the system; calculate the quantization matrix composed of the environmental parameters of the network nodes, and specify the operating frequency band for different relay levels based on the calculation results;

[0155] The nodes in each cluster are optimized for networking according to channel characteristic parameters; after networking is completed, the loop network management unit saves the currently generated routing table.

[0156] When the system is powered on again after a power outage, the loopback management unit first reads the routing table information in the memory after initialization. If the table is empty, the networking process is started; otherwise, the network is formed according to the routing table information in the memory. When one or more nodes in the system fail and leave the network, new communication nodes are replaced at the corresponding locations during maintenance. When the loopback management unit detects the new communication node, it sends a management frame to inform the new communication node to inherit the routing status information and update the routing table information in the memory, thus avoiding dynamic re-networking of the system.

[0157] Example 11

[0158] A navigation light fixture integrates a navigation light fixture control device as described in any one of Embodiments 1 to 5 with the light fixture itself; the navigation light fixture control device includes an antenna, and the light fixture includes a light fixture cavity and a light fixture cover; the antenna is a printed circuit board antenna, fixed in the light fixture cavity, and receives or transmits radio waves by opening multiple signal transmission slots on the light fixture cover.

[0159] Example 12

[0160] A method for controlling navigation lights, implemented based on the navigation light control device described in Embodiment 4, includes the following steps:

[0161] The LED driver module provides constant voltage and constant current output to the LEDs in the corresponding luminaire window to meet the specified light intensity requirements. Its output is five levels of light adjustable. When the driver is configured in single-input power supply mode, LED driver module A and LED driver module B are powered by the same AC / DC module. When the driver is configured in dual-input power supply mode, LED driver module A and LED driver module B are powered by different AC / DC modules and are independent of each other.

[0162] Example 13

[0163] A method for controlling navigation lights, implemented based on any one of the navigation light control devices described in Embodiments 1 to 5, and the method includes the following system power-on workflow:

[0164] S1, after power-on, the AD / DC module obtains DC power to power the FPGA through the full-bridge rectifier circuit;

[0165] S2, after the FPGA module is initialized, the AD / DC module is adjusted to half-bridge working mode according to the load size, generating the working power of the LED driver module and the wireless module, and setting the corresponding channel output light level according to the detected input current result;

[0166] S3, the FPGA module initializes the carrier data processing module, starts listening to and receiving beacon frames sent by the Central Coordination Unit (CCO) of the power line carrier, and completes the network formation after confirmation;

[0167] S4, when the FPGA module detects the channel quality on the power line in real time, if it is lower than the preset value, the wireless communication module is woken up and the wireless transmission channel is started; if it is higher than the preset value, the power line carrier data channel is used.

[0168] S5: When a lighting malfunction is detected, the data transmission channel is immediately activated to report the malfunction.

[0169] Example 14

[0170] A navigation light control method is provided, based on the navigation light control device described in Embodiment 4, and the method includes the following wireless module interface initialization process:

[0171] SS1: When a lighting fixture malfunction is detected, the data transmission channel is immediately activated to report the malfunction.

[0172] SS2 checks the SIM card status and network registration status. If a success flag is returned, proceed to the next step; otherwise, an error flag is returned, indicating that the wireless channel is unavailable.

[0173] SS3, dial. If successful, proceed to the next step; otherwise, repeat the dialing operation at a fixed time interval until successful.

[0174] SS4 establishes a TCP / IP connection with the server. If the connection is successful, data transmission can proceed; otherwise, the dialing process is returned.

[0175] Example 15

[0176] A method for controlling navigation lights, implemented based on any one of the navigation light control devices described in Embodiments 1 to 5, and the method includes the following light control workflow:

[0177] T1 establishes a TCP / IP connection with the server. If the connection is successful, data transmission can proceed. If the connection fails, the dialing process is returned.

[0178] T2: After the FPGA module successfully parses the command, it executes the corresponding operation based on the command value and returns the execution result.

[0179] Example 16

[0180] A navigational lighting control method, implemented based on the navigational lighting control device described in Embodiment 10, wherein the calculation of a quantization matrix composed of environmental parameters of network nodes, and the specification of the operating frequency band for different relay levels based on the calculation results, specifically includes the following sub-steps:

[0181] Step 1: Set the quantified values ​​of environmental parameters faced by each node cluster in the navigation lighting system and the corresponding relay scene level. Each set of environmental parameters consists of four dimensions: cluster attenuation level, channel bandwidth level, transmission power level, and environmental noise level. Set the evaluation matrix A for the environmental parameters faced by each node cluster at each relay scene level:

[0182]

[0183] in, It is the quantized value of the t-th dimension in the v-th relay scenario level faced by the node cluster, t=1,2,3,4, v=1,2,…s, s is the total number of relay scenario levels, and v is the scenario level sequence number variable;

[0184] Step 2: Calculate the quantized value M of the environmental parameters for each node cluster. i :

[0185]

[0186]

[0187] in, The specific calculated and quantified values ​​of the environmental parameters for the i-th node cluster under the v-th relay scenario level, i = 1, 2, ..., k, v = 1, 2, ..., s, where k is the total number of loop node clusters;

[0188] Step 3, set the evaluation matrix for working frequency band selection under relay scenario level:

[0189]

[0190] in, This indicates that the j-th working frequency band is used for the v-th relay scenario level, where j = 1, 2, ..., p, v = 1, 2, ..., s, and p is the total number of prior working frequency bands;

[0191] Step 4: Calculate the quantization value Z of each node cluster after using p working frequency bands. i :

[0192]

[0193] in, This is the calculated quantized value after applying the j-th control strategy to the clustering of the i-th node;

[0194] Step 5: Based on actual needs, the i-th node is clustered from the calculated vector Z. i Select the maximum value to determine its corresponding operating frequency band.

[0195] The units described in the embodiments of the present invention can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0196] According to one aspect of the present invention, a computer program product or computer program is provided, the computer program product or computer program including computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and executes the computer instructions, causing the computer device to perform the methods provided in the various optional implementations described above.

[0197] In another aspect, embodiments of the present invention also provide a computer-readable medium, which may be included in the electronic device described in the above embodiments; or it may exist independently and not assembled into the electronic device. The computer-readable medium carries one or more programs, which, when executed by the electronic device, cause the electronic device to perform the methods described in the above embodiments.

[0198] All parts not covered in this invention are the same as or can be implemented using existing technologies.

[0199] The above technical solution is only one embodiment of the present invention. For those skilled in the art, based on the application methods and principles disclosed in the present invention, it is easy to make various types of improvements or modifications, and not limited to the methods described in the above specific embodiments of the present invention. Therefore, the methods described above are only preferred and are not restrictive.

[0200] In addition to the examples above, other embodiments may be obtained by those skilled in the art based on the above disclosure or by making modifications using knowledge or technology in related fields. The features of each embodiment may be interchanged or replaced. Modifications and changes 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. A navigational lighting control device, characterized in that, include: The system includes an FPGA module, a signal conditioning module, a communication module, an AC / DC module, an LED driver module, an isolation transformer, and a signal coupling module. The communication module comprises a power line carrier communication module and a wireless communication module. The navigation lights utilize a combination of these two communication methods to receive remote control commands and adjust the output light level brightness, enabling control of the lights' on / off and flashing states. The AC / DC module converts the constant current output of the isolation transformer into DC power to provide operating power for the LED driver module, FPGA module, signal conditioning module, and wireless communication module. The signal coupling module has a reserved signal line interface for providing an interface when the system uses broadband power line carrier communication; at the same time, when the system uses narrowband power line carrier communication, the coupling module is also used to filter out noise, extract the carrier signal from the power line, and send it to the signal conditioning module for preprocessing. The signal conditioning module includes a carrier signal conditioning unit and an input current waveform signal conditioning unit. The carrier signal conditioning unit includes an input signal conditioning module and a signal output conditioning module. The input signal conditioning module samples the carrier signal sent by the signal coupling module at high speed, converts it into a digital signal, and sends it to the FPGA module for processing. The FPGA module converts the data to be transmitted into a differential analog signal through the signal output conditioning module and couples it to both ends of the input line of the isolation transformer. The FPGA module provides control signals EN1 and EN2 for driving the signal coupling module to select whether to receive the signal from the power line or couple the data to be transmitted to the power line. The input current waveform signal conditioning unit includes an ADC module. The FPGA module controls the conversion timing of the ADC module and performs serial-to-parallel conversion on the output result of the ADC module before data processing. When a certain level of light input is detected, the FPGA module controls the output current value of the LED module to make the LED beads output the light intensity of the certain level of light. The FPGA module includes a timing processing module, a carrier data processing module, a wireless module interface initialization module, a function control module, and a storage module. The timing processing module is used to process the operating timing of the AC / DC module, the LED driver module, and the power line carrier signal conditioning and modulation / demodulation timing. The carrier data processing module is a power line carrier communication protocol implementation unit, integrating physical layer, data link layer, and application layer protocols, and is configured with a fixed MAC address for precise location of the lamps and individual lamp control. The wireless module interface initialization module is used to complete wireless module identification, dial into the network according to the identified module, and establish a connection. The function control module is used for light level detection, light level output control, and lamp on / off control. The lamp light level output control adopts two control methods: current input control and external command. When a control command is received, it is parsed, and the lamp's on / off and flashing control are implemented based on the parsing results, as well as the lamp's operating status is reported. The storage module is used to store the FPGA's running program; The wireless communication module receives and transmits data through an antenna, and sends the demodulated data to the FPGA module for processing through a communication interface. The FPGA module interacts with the wireless communication module and controls the working state of the wireless communication module after it is powered on.

2. The navigation light control device according to claim 1, characterized in that, The LED driver module circuit includes resistors, capacitors, inductors, and a buck control driver U1. The FPGA module, based on the acquired input current value or received light level command, sets LED_CH1_EN and LED_CH1_ADJ to enable U1, controlling the MOSFET Q1 to turn on or off. Current flows through resistor R4, Q1, and inductor L1, providing operating current to the LED chips. On the other hand, it also stores energy in inductor L1. When the current exceeds the preset threshold, the voltage across R4 triggers U1 to turn off Q1. R5 and C3 set the turn-off time T, the value of which is obtained by the following formula: C is the circuit parasitic capacitance, and V is the preset voltage. （1） （2） （3） R1 and R2 are configured for undervoltage protection. When the input power supply VCC_LED is lower than the design value, the U1 control pin PGATE turns off MOSFET Q1. J1 is a connector connected to the LED chip. D1 is a freewheeling diode, and D represents the duty cycle. For switching frequency, For output voltage, Set a capacitor for the turn-off time constant. For conversion efficiency, This is the LED output current adjustment coefficient.

3. The navigation light control device according to claim 1, characterized in that, It also includes a power selection unit. The isolation transformer includes isolation transformer A and isolation transformer B. The LED driver module includes LED driver module A and LED driver module B. The input of isolation transformer A is connected to the AC / DC module to supply power to LED driver module A. The input of isolation transformer B is connected to the AC / DC module to supply power to LED driver module B. The digital power generated by isolation transformers A and B after passing through the AC / DC module is used to supply power to the control core FPGA module through the power selection unit, so as to realize the purpose of dual-channel lamp driver sharing a single control core.

4. The navigation light control device according to claim 1, characterized in that, It also includes an EMI protection circuit and a current detection circuit. The EMI protection circuit is used for electromagnetic shielding protection. The current detection circuit is used to detect the current value at the input terminal of the isolation transformer and set the output current of the LED driver module through the FPGA module according to the magnitude of the current value.

5. The navigation light control device according to claim 1, characterized in that, The wireless communication module supports three working modes: 4G, 5G, and 5G-A.

6. The navigation light control device according to claim 1, characterized in that, The FPGA module interacts with the wireless communication module via serial port and USB port.

7. The navigation light control device according to claim 1, characterized in that, The FPGA module controls the working state of the wireless communication module after power-on through the RESET signal, EN signal, and POWAKE interface.

8. The navigation light control device according to claim 1, characterized in that, The wireless module has a SIM card interface. After power-on initialization, it reads the SIM card information for subsequent dialing operations.

9. The navigation light control device according to claim 1, characterized in that, The power line carrier communication module is used to execute the following process: For nodes that need to join the network, perform network clustering and networking according to the specified path to minimize the number of proxy nodes in the system; calculate the quantization matrix composed of the environmental parameters of the network nodes, and specify the operating frequency band for different relay levels based on the calculation results; Optimize the network topology of nodes in each cluster according to channel characteristic parameters; After the network is completed, the loopback management unit saves the currently generated routing table; When the system is powered on again after a power outage, the loopback management unit first reads the routing table information in the memory after initialization. If the table is empty, the networking process is started; otherwise, the network is formed according to the routing table information in the memory. When one or more nodes in the system fail and leave the network, new communication nodes are replaced at the corresponding locations during maintenance. When the loopback management unit detects the new communication node, it sends a management frame to inform the new communication node to inherit the routing status information and update the routing table information in the memory, thus avoiding dynamic re-networking of the system.

10. A navigational aid light, characterized in that, The navigation light control device as described in any one of claims 1 to 4 is integrated with the light fixture; the navigation light control device includes an antenna, and the light fixture includes a light fixture cavity and a light fixture cover. The antenna is a printed circuit board antenna, fixed inside the lamp housing, and receives or transmits radio waves by opening multiple signal transmission slots on the lamp cover.

11. A method for controlling navigation lights, characterized in that, Based on the navigation light control device according to claim 3, the method includes the following steps: The LED driver module provides constant voltage and constant current output to the LEDs in the corresponding luminaire window to meet the specified light intensity requirements. Its output is five levels of light adjustable. When the driver is configured in single-input power supply mode, LED driver module A and LED driver module B are powered by the same AC / DC module. When the driver is configured in dual-input power supply mode, LED driver module A and LED driver module B are powered by different AC / DC modules and are independent of each other.

12. A method for controlling navigation lights, characterized in that, Based on the navigation light control device according to any one of claims 1 to 4, the method includes the following system power-on workflow: S1, after power-on, the AD / DC module obtains DC power to power the FPGA through the full-bridge rectifier circuit; S2, after the FPGA module is initialized, the AD / DC module is adjusted to half-bridge working mode according to the load size, generating the working power of the LED driver module and the wireless module, and setting the corresponding channel output light level according to the detected input current result; S3, the FPGA module initializes the carrier data processing module, starts listening to and receiving beacon frames sent by the Central Coordination Unit (CCO) of the power line carrier, and completes the network formation after confirmation; S4, when the FPGA module detects the channel quality on the power line in real time, if it is lower than the preset value, the wireless communication module is woken up and the wireless transmission channel is started; if it is higher than the preset value, the power line carrier data channel is used. S5: When a lighting malfunction is detected, the data transmission channel is immediately activated to report the malfunction.

13. A method for controlling navigation lights, characterized in that, Based on the navigation light control device according to claim 3, the method includes the following wireless module interface initialization process: SS1: When a lighting fixture malfunction is detected, the data transmission channel is immediately activated to report the malfunction. SS2 checks the SIM card status and network registration status. If a success flag is returned, proceed to the next step; otherwise, an error flag is returned, indicating that the wireless channel is unavailable. SS3, dial. If successful, proceed to the next step; otherwise, repeat the dialing operation at a fixed time interval until successful. SS4 establishes a TCP / IP connection with the server. If the connection is successful, data transmission can proceed; otherwise, the dialing process is returned.

14. A method for controlling navigation lights, characterized in that, The method is implemented based on the navigation light control device according to any one of claims 1 to 4, and includes the following light control workflow: T1 establishes a TCP / IP connection with the server. If the connection is successful, data transmission can proceed. If the connection fails, the dialing process is returned. T2: After the FPGA module successfully parses the command, it executes the corresponding operation based on the command value and returns the execution result.

15. A method for controlling navigation lights, characterized in that, Based on the navigation lighting control device of claim 9, the calculation of the quantization matrix composed of environmental parameters of network nodes, and the specification of the operating frequency band for different relay levels according to the calculation results, specifically includes the following sub-steps: Step 1: Set the quantified values ​​of environmental parameters faced by each node cluster in the navigation lighting system and the corresponding relay scene level. Each set of environmental parameters consists of four dimensions: cluster attenuation level, channel bandwidth level, transmission power level, and ambient noise level. Set the evaluation matrix of environmental parameters for each relay scene level faced by the node cluster. : in, This is the first challenge faced by node clustering. The first in the relay scenario level Quantization value of dimension , , This represents the total number of relay scene levels. This is a scene level index variable; Step 2: Calculate the quantized values ​​of environmental parameters for each node cluster. : in, For the first The first node clustering faces the first The specific quantified values ​​of environmental parameters under various relay scenario levels are calculated. , , The total number of clusters for loop nodes; Step 3, set the evaluation matrix for working frequency band selection under relay scenario level: in, Indicates that for the first The relay scenario level adopts the first This type of operating frequency band , , This represents the total number of prior operating frequency bands; Step 4: Calculate the clustering method for each node. Calculated quantization value after working frequency band : in, For the first The node clustering adopts the first... The calculated quantized value after the control strategy; Step 5, based on actual needs, the... The vector obtained from the node clustering calculation Select the maximum value to determine its corresponding operating frequency band.

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