Multi-vehicle light synchronization control system

Abstract

The utility model discloses a kind of multi-vehicle lamp synchronous control systems, belong to vehicle lamp control technical field.A kind of multi-vehicle lamp synchronous control system, including control unit, vehicle-mounted main control unit, bluetooth Mesh main control unit and execution unit, vehicle-mounted main control unit includes bluetooth Mesh radio frequency module, bluetooth Mesh main control unit includes transmission module, and execution unit includes bluetooth Mesh slave node module;Bluetooth Mesh radio frequency module, transmission module and multiple bluetooth Mesh slave node module are connected to form Mesh bluetooth networking;The utility model's multi-vehicle lamp synchronous control system utilizes bluetooth Mesh self-organizing network characteristics, significantly improves network topology flexibility and anti-interference ability, supports large-scale multi-vehicle collaborative scene under the rapid deployment and dynamic expansion, simultaneously through low-power bluetooth technology to prolong equipment endurance, and it is applicable to intelligent transportation, vehicle fleet formation and vehicle-road cooperation and other frontier application environment.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting control technology, and in particular to a multi-vehicle lighting synchronization control system. Background Technology

[0002] With the rapid development of intelligent connected vehicle technology, vehicle lighting systems are gradually evolving towards intelligence and collaboration. Traditional vehicle lighting control mostly uses point-to-point communication, which has problems such as complex wiring, poor scalability, and asynchronous response, making it difficult to meet the needs of multi-vehicle collaborative lighting.

[0003] Existing vehicle lighting synchronization control solutions mostly rely on Wi-Fi or dedicated wireless protocols, which have drawbacks such as high power consumption, weak networking capabilities, and poor anti-interference. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to solve the problems of large communication delay, poor network stability and insufficient equipment compatibility in the existing multi-vehicle light synchronization control, this utility model provides a multi-vehicle light synchronization control system, which realizes real-time synchronization and collaborative control of the vehicle light status among multiple vehicles by constructing a decentralized Bluetooth Mesh network.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a multi-vehicle light synchronization control system, comprising: The control unit is used to issue control commands and coordinate the operating status of each vehicle light node; The vehicle-mounted main control unit includes a Bluetooth Mesh radio frequency module, which is responsible for receiving command signals and sending control signals. The Bluetooth Mesh master control unit includes a transmission module, which segments and reassembles data, decrypts and verifies its integrity to ensure the reliability of data during multi-hop transmission. The execution unit includes a Bluetooth Mesh slave module, which is installed in each vehicle light terminal. The Bluetooth Mesh slave module receives control signals and forwards control commands through flooding. The system comprises a control unit connected to the vehicle's main control unit, a Bluetooth Mesh RF module connected to the transmission module, and multiple Bluetooth Mesh slave node modules connected to form a Mesh Bluetooth network. This Mesh Bluetooth network utilizes a dynamic routing mechanism to achieve multi-hop transmission, ensuring synchronized response of vehicle lights among the slave nodes. Based on the 1588v2 protocol, it employs timestamp calibration technology and a master-slave clock synchronization mechanism to achieve microsecond-level time synchronization among the vehicle light nodes, ensuring consistent light response. This enables precise synchronization and stable communication of multiple vehicle lights in complex environments, effectively reducing control latency and power consumption. Compared to existing solutions relying on Wi-Fi or dedicated wireless protocols, this system leverages the self-organizing characteristics of Bluetooth Mesh, significantly improving network topology flexibility and anti-interference capabilities. It supports rapid deployment and dynamic expansion in large-scale multi-vehicle collaborative scenarios, while extending device battery life through low-power Bluetooth technology, making it suitable for cutting-edge applications such as intelligent transportation, fleet formation, and vehicle-to-everything (V2X) communication.

[0006] Furthermore, the vehicle-mounted main control unit also includes a microprocessor. The microprocessor is responsible for receiving instructions and parsing them into specific lighting control signals. The microprocessor and the Bluetooth Mesh RF module are integrated on the same chip and work together to achieve efficient processing and real-time response of instructions. The microprocessor has a built-in timing calibration algorithm that, combined with the timestamp information of the Bluetooth Mesh slave node modules, dynamically adjusts the execution timing of each slave node to compensate for transmission delay differences and ensure that multiple vehicle lights maintain microsecond-level synchronization accuracy in a dynamic networking environment.

[0007] Furthermore, the microprocessor incorporates an address allocation algorithm that employs a decentralized address management mechanism, enabling Bluetooth Mesh slave node modules to be assigned unique network identifiers. The address allocation algorithm is optimized for all-IP vehicular networks, generating globally unique addresses that conform to the IPv6 format. The address allocation algorithm adopts a hierarchical address structure, supports network expansion, and automatically adapts to the addition or removal of nodes. Combined with a dynamic update mechanism for the routing table, it ensures communication continuity and addressing accuracy under network topology changes.

[0008] Furthermore, the microprocessor introduces a weighted calculation mechanism based on the remaining energy of nodes, prioritizing the allocation of core forwarding tasks to nodes with high power levels, thereby optimizing network load balancing and extending the overall system's endurance.

[0009] Furthermore, the microprocessor incorporates a multi-level conflict detection mechanism, which dynamically identifies potential address conflict risks and triggers a reallocation process through address usage statistics and Hamming distance calculation, effectively avoiding communication interference between nodes and ensuring the stability and reliability of network operation.

[0010] Furthermore, the control unit includes physical buttons, vehicle sensors, a mobile terminal, and an in-vehicle human-machine interaction system. The physical buttons are used to manually trigger preset lighting modes. The vehicle sensors collect vehicle speed, steering angle, and ambient light data in real time. The mobile terminal sends remote control commands through a Bluetooth Mesh gateway. The in-vehicle human-machine interaction system provides visual feedback on lighting status and mode configuration functions. The physical buttons, vehicle sensors, mobile terminal, and in-vehicle human-machine interaction system work together to achieve multi-source command fusion processing.

[0011] Furthermore, the vehicle-mounted main control unit also includes a bus interface and an external control interface. The bus interface is connected to the microprocessor and the vehicle-mounted human-machine interaction system to achieve data connection with the vehicle-mounted human-machine interaction system and support real-time acquisition of key information such as vehicle speed, turn signal signals and vehicle status. The external control interface is connected to physical buttons and vehicle sensors to achieve direct acquisition and response to underlying hardware signals, ensuring that the lighting control system is synchronized with the vehicle's operating status. The Bluetooth Mesh radio frequency module is connected to a mobile terminal to achieve remote wireless configuration.

[0012] Furthermore, the Bluetooth Mesh master control unit also includes a network module and a model module. The network module is used to handle transmission and relay within the network range, and the model module is used to define data formats and application scenarios. The model module is connected to the Bluetooth Mesh radio frequency module and the transmission module, and the network module is connected to the transmission module. The model module generates corresponding data packets according to instructions and transmits them to the transmission module. The transmission module encapsulates and encrypts the data packets before transmitting them to the network module. The network module decrypts and verifies the data packets, performs routing and addressing, and then transmits them to the transmission module. The transmission module reassembles the data packets based on the decrypted application information and distributes them to the target nodes, ensuring reliable delivery of instructions and consistency of execution timing. Thus, the Bluetooth Mesh master control unit achieves precise scheduling and state synchronization of light nodes through a closed-loop control process, and combines a timestamp verification mechanism to ensure the coordination of actions between multiple nodes, effectively eliminating response deviations caused by accumulated instruction delays.

[0013] Furthermore, the execution unit also includes a lighting driver module, which is connected to the Bluetooth Mesh slave node module. The lighting driver module adjusts the output current and pulse width modulation signal according to the received control parameters to precisely control the brightness, color temperature and dynamic effects of the lamp, and supports independent dimming in multiple areas and scene mode linkage.

[0014] Furthermore, the execution unit also includes a lamp detection module, which is connected to the lighting driver module and communicates with the Bluetooth Mesh slave node module to monitor the lamp's working status, current and voltage parameters, and fault information in real time. The detection data is then transmitted back to the main control unit for analysis and processing to provide early warnings of abnormal situations and low power consumption, ensuring stable system operation.

[0015] Furthermore, the multi-vehicle light synchronization control system also includes a relay enhancement unit. The relay enhancement unit is equipped with a radar sensing module and a master-slave integrated Bluetooth module. The radar sensing module is connected to the master-slave integrated Bluetooth module, which is connected to a microprocessor. The radar sensing module is used for range-based motion detection and triggering signals. The master-slave integrated Bluetooth module transmits the trigger signals to the microprocessor for logical judgment and priority processing. After confirming a valid trigger, the master-slave integrated Bluetooth module broadcasts a synchronization command to achieve millisecond-level response and linkage of multiple vehicle light groups.

[0016] Furthermore, the Mesh Bluetooth networking adopts an event-triggered wake-up mechanism, which automatically enters a low-power sleep mode when there is no operation. When a change in vehicle signal, remote control command, or radar trigger event is detected, the system wakes up instantly and completes command distribution and execution, effectively reducing standby power consumption.

[0017] Furthermore, the routing protocol of the Mesh Bluetooth network dynamically selects the optimal path based on link quality, bandwidth, and interference conditions to ensure the stability and real-time performance of data transmission. When the network topology changes or a node fails, the system automatically reconstructs the routing path to avoid single-point failures affecting overall operation. The Mesh Bluetooth network has a redundancy processing mechanism, allowing the same command to be transmitted in parallel on different paths, processing only the first arriving command packet, and automatically discarding other duplicate packets, effectively preventing command overlap and execution conflicts.

[0018] The beneficial effects of this utility model are that, compared with existing solutions that rely on Wi-Fi or dedicated wireless protocols, the multi-vehicle light synchronization control system of this utility model effectively improves communication reliability and coverage by utilizing the dynamic routing characteristics of Bluetooth Mesh networking, and can maintain a stable connection even in complex environments; it significantly improves network topology flexibility and anti-interference capability, supports rapid deployment and dynamic expansion in large-scale multi-vehicle collaborative scenarios, and extends device battery life through low-power Bluetooth technology, making it suitable for cutting-edge application environments such as intelligent transportation, fleet formation, and vehicle-road collaboration.

[0019] This utility model's multi-vehicle light synchronization control system ensures millisecond response from each node through a timestamp synchronization mechanism and a distributed clock calibration algorithm, effectively reducing communication delay and timing deviation, and achieving precise synchronization control of multiple vehicle light groups.

[0020] This utility model's multi-vehicle headlight synchronization control system utilizes a microprocessor for real-time monitoring and dynamic scheduling of nodes in a Bluetooth Mesh network. Combined with collaborative feedback from the headlight drive module and the headlight detection module, it achieves adaptive adjustment of headlight brightness, color temperature, and dynamic effects. The system leverages the relay capability of the master-slave integrated Bluetooth module to extend signal coverage, improve communication reliability in complex environments, and ensure low latency and high integrity of commands during multi-hop transmission. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a simplified diagram of the architecture of the multi-vehicle headlight synchronization control system in this practical application.

[0023] Figure 2 yes Figure 1 A schematic diagram of the structure of the CRRC main control unit.

[0024] Figure 3 yes Figure 1 A schematic diagram of the structure of the Bluetooth Mesh master control unit.

[0025] Figure 4 yes Figure 1 A schematic diagram of the structure of the execution unit.

[0026] Figure 5 yes Figure 1 A schematic diagram of the architecture of a multi-vehicle headlight synchronization control system.

[0027] In the diagram: 1. Control unit; 2. Vehicle main control unit; 21. Microprocessor; 22. Bluetooth Mesh RF module; 23. Bus interface; 24. External control interface; 3. Bluetooth Mesh main control unit; 31. Network module; 32. Transmission module; 33. Model module; 4. Execution unit; 41. Bluetooth Mesh slave node module; 42. Lighting driver module; 43. Lighting detection module; 5. Relay enhancement unit. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0029] like Figure 1 As shown, a multi-vehicle headlight synchronization control system includes a control unit 1, an on-board main control unit 2, a Bluetooth Mesh main control unit 3, an execution unit 4, a relay enhancement unit 5, and a Mesh Bluetooth network. The control unit 1 is connected to the on-board main control unit 2 to issue commands and provide status feedback. The on-board main control unit 2 is connected to the Bluetooth Mesh main control unit 3, and the Bluetooth Mesh main control unit 3 communicates bidirectionally with the execution unit 4 to build a decentralized Mesh Bluetooth network. The relay enhancement unit 5 is connected to the on-board main control unit 2 to help improve the signal penetration and coverage stability of the Bluetooth Mesh network, ensuring efficient communication even in high-density vehicle environments.

[0030] in: The control unit 1 includes at least physical buttons, vehicle sensors, a mobile terminal, and an in-vehicle human-machine interaction system for receiving user operation commands.

[0031] Reference Figure 2 , Figure 5 The vehicle-mounted main control unit 2 integrates a microprocessor 21 and a Bluetooth Mesh RF module 22 via an MCU chip with a BLE 5.0 or higher protocol stack. It is responsible for network setup, timing scheduling, and exception handling. The microprocessor 21 establishes a stable communication link with the Bluetooth Mesh main control unit 3 through the Bluetooth Mesh RF module 22 to achieve rapid distribution of control commands and real-time feedback of status information. It also pairs and connects with mobile terminals through the Bluetooth Mesh RF module 22 to support remote control and system parameter configuration. The vehicle-mounted main control unit 2 also has a power circuit module, a bus interface 23, and an external control interface 24. The microprocessor 21 communicates with the vehicle's CAN / LIN network through the bus interface 23 to achieve data interaction with the vehicle's human-machine interaction system. At the same time, it connects to vehicle sensors and physical buttons through the external control interface 24 to collect vehicle operating status and user input signals in real time to ensure accurate triggering of control commands. The power supply circuit module provides a stable power supply for the entire system, supports wide voltage input and integrates overvoltage and overcurrent protection mechanisms to adapt to dynamic changes in the vehicle's electrical environment; it also has low power management functions, automatically entering standby mode in the vehicle's sleep mode to reduce power consumption.

[0032] The microprocessor 21 has a built-in timing calibration algorithm, which is existing technology and will not be described in detail here. Combined with the timestamp information of the Bluetooth Mesh slave node module 41, it dynamically adjusts the execution timing of each slave node, compensates for transmission delay differences, and ensures that multiple vehicle lights maintain microsecond-level synchronization accuracy in a dynamic networking environment.

[0033] The microprocessor 21 has a built-in address allocation algorithm that adopts a decentralized address management mechanism, enabling the Bluetooth Mesh slave node module 41 to be assigned a unique network identifier. The address allocation algorithm is optimized for all-IP vehicle networks, generating globally unique addresses that conform to the IPv6 format. The address allocation algorithm adopts a hierarchical address structure, supports network expansion and automatically adapts to the addition or removal of nodes. Combined with the dynamic update mechanism of the routing table, it ensures communication continuity and addressing accuracy under network topology changes.

[0034] The microprocessor 21 introduces a weighted calculation mechanism based on the remaining energy of nodes. This algorithm is existing technology and will not be described in detail here. It prioritizes the allocation of core forwarding tasks to nodes with high power, thereby optimizing network load balancing and extending the overall system endurance.

[0035] The microprocessor 21 incorporates a multi-level conflict detection mechanism, which dynamically identifies potential address conflict risks and triggers a reallocation process through address usage statistics and Hamming distance calculation. The specific data processing is based on existing technologies and will not be elaborated here. The multi-level conflict detection mechanism effectively avoids communication interference between nodes and ensures the stability and reliability of network operation.

[0036] Reference Figure 3 , Figure 5 The Bluetooth Mesh master control unit 3 includes at least a network module 31, a transmission module 32, and a model module 33. The network module 31 is responsible for message relay, routing, and addressing of the Bluetooth Mesh network to ensure stable communication between multiple nodes. The transmission module 32 is responsible for data packetization, reassembly, and reliability assurance to improve anti-interference capabilities. The model module 33 defines data formats and application scenarios to realize scenario-based command parsing and execution strategy matching for vehicle lighting control. The Bluetooth Mesh master control unit 3 completes data encapsulation and routing forwarding based on the network module 31 and the transmission module 32, and combines the preset lighting modes of the model module 33. The transmission module 32 and the Bluetooth Mesh radio frequency module 22 are connected via wireless radio frequency signals.

[0037] Reference Figure 4 , Figure 5 The execution unit 4 has multiple components, each including a Bluetooth Mesh slave node module 41, a driver module 42, and a lamp detection module 43. The Bluetooth Mesh slave node module 41 is connected to the transmission module 32 via a wireless radio frequency signal, and the Bluetooth Mesh slave node module 41 is connected to the driver module 42 via a control signal. The execution unit 4 accesses the network through the Bluetooth Mesh slave node module 41, receives instructions, and drives the lamp driver module 42 to adjust the lamp. The lamp driver module 42 includes a PWM dimming drive circuit, which adjusts the duty cycle and frequency according to the instructions to precisely control the brightness and color output of the lamp. The lamp driver module 42 has a wide voltage input of 3.3V-24V to adapt to the power systems of different vehicle models. The lamp detection module 43 monitors the lamp working status in real time and feeds back the current, voltage, and temperature parameters to the Bluetooth Mesh slave node module 41 to realize fault self-diagnosis and abnormal alarm.

[0038] The relay enhancement unit 5 integrates a radar sensing module and a master-slave Bluetooth module. It can automatically activate the relay function based on environmental perception, dynamically extend network coverage in areas with weak signals, improve the synchronization response accuracy and communication stability of the headlight group in complex driving environments, and ensure reliable transmission of commands.

[0039] The radar sensing module uses the LD2410B radar chip, which has high-precision human dynamic perception capabilities and can detect the position, speed, and direction information of moving targets around the vehicle in real time. It communicates with the vehicle main control unit 2 through the UART interface, integrating the perception data into the environmental fusion judgment logic to trigger the near-field lighting interaction mode or safety warning function. It is equipped with a false wake-up suppression algorithm, which combines multi-frame data fusion and motion trajectory prediction to effectively distinguish pedestrians, non-motorized vehicles, and environmental noise, reducing the probability of false triggering. It is equipped with an unmanned delay shutdown logic, which automatically reduces the radar operating frequency or enters sleep mode when no effective moving target is detected for more than a preset time to reduce power consumption.

[0040] The master-slave integrated Bluetooth module adopts the HLK-B26 Bluetooth module, supports the BLE5.3 protocol standard, supports 2Mbps high-speed transmission mode, and the physical layer rate is twice that of BLE4.2, significantly enhancing the real-time response capability of the vehicle lighting system in complex environments; it supports the Bluetooth Mesh networking protocol to achieve low-latency and high-reliability communication between multiple nodes, meeting the millisecond-level synchronization requirements of the vehicle lighting system; it has the dual role switching capability of master and slave node, realizing seamless networking and dynamic topology reconstruction between multiple devices; during the node role switching process, it automatically synchronizes network key and timestamp information to ensure communication security and timing consistency.

[0041] Mesh Bluetooth networking supports an event-triggered response mechanism. Once a dynamic target is detected approaching the vehicle, the system is immediately awakened and the corresponding area lights are activated to guide traffic, improving the convenience and safety of nighttime driving.

[0042] The working process of the above-mentioned multi-vehicle light synchronization control system is as follows: I. Network Initialization Phase: The user triggers the network command through the in-vehicle human-machine interaction system or mobile terminal. The in-vehicle main control unit 2 enters the network mode and sends synchronization beacons to surrounding slave nodes via Bluetooth broadcast. Each Bluetooth Mesh slave node module 41 responds and transmits its device identifier and current battery information. The microprocessor 21 starts the address allocation algorithm to generate a unique IPv6 network address for the access node and updates the global routing table according to the hierarchical structure. At the same time, the forwarding priority is initialized based on the weighted calculation mechanism of the node's remaining energy, completing the network topology construction and resource scheduling strategy deployment. The relay enhancement module starts to extend the signal coverage range and ensure the stability of the communication link between each lighting node in the complex in-vehicle environment; at the same time, it enters a low-power detection state, waiting for wake-up trigger.

[0043] II. Command Transmission and Synchronization Phase: Users send control commands via mobile terminals or physical buttons, or control requests are triggered by vehicle sensors (such as light sensors) or the vehicle's main signal. The signals are transmitted to the vehicle's main control unit 2. The microprocessor 21 parses the command type, which is then transmitted to the Bluetooth Mesh main control unit 3 via the Bluetooth Mesh radio frequency module 22. The model module 33 receives the signal and decomposes it into corresponding action sequence commands, transmitting these commands to the transmission module 32. Upon receiving the command, the transmission module 32 performs "encapsulation + encryption" operations, standardizing and securing the original command. After processing, the command is passed down to the network module 31. The network module 31 performs "decryption + verification" operations. Only when both decryption and verification are successful is the command deemed legitimate and transmitted to the transmission module 32. The transmission module 32, upon receiving the message from the network module 31, performs "reassembly + decryption." The operation restores the original format of the application message and confirms the target model corresponding to the message. Only when both reconstruction and decryption are successful will the instruction be broadcast to all corresponding slave nodes in the network using an ultra-low power flooding communication protocol (following the BLE5.2 protocol standard). After receiving the instruction, the corresponding Bluetooth Mesh slave node module 41 achieves nanosecond-level clock synchronization based on the 1588v2 protocol through hardware timestamps and master-slave synchronization mechanisms to ensure that the response delay of each light unit is less than 5 milliseconds. After parsing the instruction, the light driver module 42 retrieves the pre-stored PWM dimming parameters, adjusts the duty cycle and frequency, and achieves accurate output of light brightness and color to ensure consistent operation of multiple light groups.

[0044] III. Monitoring and Feedback Phase: The lamp detection module 43 monitors the lamp's operating status in real time, including current, voltage, and temperature parameters. When an anomaly occurs, a fault code is triggered and reported to the vehicle-mounted main control unit 2. The vehicle-mounted main control unit 2 initiates a graded response mechanism based on the fault level. Minor anomalies are compensated through an adaptive algorithm, while severe faults isolate the node and trigger redundant control strategies to ensure overall system stability. Simultaneously, the vehicle-mounted main control unit 2 transmits status information and processing results back to the user terminal or instrument display interface for visualized feedback.

[0045] IV. Dynamic Optimization Phase: When the vehicle moves, the system automatically adjusts the network topology. The relay enhancement module 5 triggers network wake-up through the movement detection function within 8 meters, senses changes in node positions in real time, and dynamically updates the routing path to avoid communication interruptions due to signal obstruction or distance fluctuations. The microprocessor 21 combines vehicle driving status and environmental data to predictively adjust the light output intensity and response sensitivity of each area, improving energy efficiency and user experience. At the same time, based on historical operating data and energy consumption models, the node sleep cycle and wake-up threshold are optimized to minimize system power consumption and extend battery life while ensuring real-time response.

[0046] When the vehicle is stationary, the system uses an event-triggered mechanism to activate the main control unit only when a valid external signal is detected (such as remote wake-up, physical button operation, or change in ambient light). At other times, all nodes enter a deep sleep mode with power consumption below 1.5μA, significantly improving energy efficiency.

[0047] If signal abnormalities or address conflicts are detected, interference and false wake-ups are reduced through a multi-level conflict detection mechanism and filter capacitors and optocoupler isolation design, ensuring stable system operation.

[0048] V. Security and Redundancy Assurance Phase: The system supports networking of 200+ nodes. New vehicle light nodes can be automatically added through scanning. The Bluetooth Mesh master control unit 3 dynamically updates network addresses and routing configurations. The system has a built-in dual-channel communication verification mechanism and uses the AES-128 encryption algorithm for end-to-end encryption of critical commands to prevent data tampering and unauthorized access. The background control and management platform continuously monitors network communication quality, node energy consumption, and vehicle light operating status, and provides real-time feedback of abnormal information to the user terminal. Dynamic lighting effect programming is supported. Users can update the lighting control logic via the APP to adapt to different scenarios such as convoy driving and special vehicle light shows.

[0049] Compared to existing solutions relying on Wi-Fi or dedicated wireless protocols, this system offers significant advantages in network stability, anti-interference capabilities, and power consumption control. The Bluetooth Mesh protocol supports multi-hop communication and automatic route reconstruction, effectively mitigating the risk of single-node failure and adapting to the demands of automotive applications in complex electromagnetic environments. Furthermore, the system achieves coordinated control of the entire vehicle's lighting system without additional wiring, significantly reducing installation costs and maintenance complexity. Over-the-air (OTA) firmware upgrades continuously optimize control strategies and security mechanisms, extending the product lifecycle. It maintains a high response success rate in both dense urban and highway scenarios, meeting automotive-grade reliability requirements. Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A multi-vehicle light synchronization control system, characterized in that, include: Control unit (1), the control unit (1) is used to issue control commands and coordinate the operating state; The vehicle-mounted main control unit (2) includes a Bluetooth Mesh radio frequency module (22), which is responsible for receiving command signals and sending control signals. Bluetooth Mesh master control unit (3), Bluetooth Mesh master control unit (3) includes transmission module (32), the transmission module (32) is used to segment and reassemble data; The execution unit (4) includes a Bluetooth Mesh slave node module (41), which is installed on each vehicle light terminal. The Bluetooth Mesh slave node module (41) receives control signals and forwards control commands through flooding. Wherein: the control unit (1) is connected to the vehicle main control unit (2), the Bluetooth Mesh radio frequency module (22) is connected to the transmission module (32), and the Bluetooth Mesh radio frequency module (22), the transmission module (32) and multiple Bluetooth Mesh slave node modules (41) are connected to form a Mesh Bluetooth network.

2. The multi-vehicle light synchronization control system as described in claim 1, characterized in that: The vehicle-mounted main control unit (2) also includes a microprocessor (21), which is connected to the Bluetooth Mesh radio frequency module (22); the microprocessor (21) has built-in timing calibration algorithm, address allocation algorithm, multi-level conflict detection mechanism and weight calculation mechanism.

3. The multi-vehicle light synchronization control system as described in claim 2, characterized in that: The control unit (1) includes physical buttons, vehicle sensors, a mobile terminal, and an in-vehicle human-machine interaction system. The physical buttons are used to manually trigger preset lighting modes. The vehicle sensors are used to collect vehicle speed, steering angle, and ambient light data in real time. The mobile terminal is used for remote control. The in-vehicle human-machine interaction system is used to provide visual feedback on lighting status and mode configuration functions. The physical buttons, vehicle sensors, mobile terminal, and in-vehicle human-machine interaction system work together to achieve multi-source command fusion processing.

4. The multi-vehicle light synchronization control system as described in claim 3, characterized in that: The vehicle main control unit (2) also includes a bus interface (23) and an external control interface (24). The bus interface (23) is connected to the microprocessor and the vehicle human-machine interaction system. The external control interface (24) is connected to the physical buttons and vehicle sensors. The Bluetooth Mesh radio frequency module (22) is connected to the mobile terminal.

5. The multi-vehicle light synchronization control system as described in claim 2, characterized in that: The Bluetooth Mesh master control unit (3) also includes a network module (31) and a model module (33). The network module (31) is used to handle transmission and relay within the network range. The model module (33) is used to define data format and application scenarios. The model module (33) is connected to the Bluetooth Mesh radio frequency module (22) and the transmission module (32). The network module (31) is connected to the transmission module (32).

6. The multi-vehicle light synchronization control system as described in claim 1, characterized in that: The execution unit (4) further includes a light driving module (42), which is connected to the Bluetooth Mesh slave node module (41).

7. The multi-vehicle light synchronization control system as described in claim 6, characterized in that: The execution unit (4) further includes a lamp detection module (43), which is connected to the light driving module (42) and communicates with the Bluetooth Mesh slave node module (41).

8. The multi-vehicle light synchronization control system as described in claim 1, characterized in that: The multi-vehicle light synchronization control system also includes a relay enhancement unit (5), which is equipped with a radar sensing module and a master-slave integrated Bluetooth module. The radar sensing module is connected to the master-slave integrated Bluetooth module. The master-slave integrated Bluetooth module is connected to the microprocessor (21). The radar sensing module is used for range-type movement detection and triggering signals. The master-slave integrated Bluetooth module is used to receive the trigger signals and transmit them to the microprocessor (21).

9. The multi-vehicle light synchronization control system as described in claim 8, characterized in that: The Mesh Bluetooth network adopts an event-triggered wake-up mechanism; the routing protocol of the Mesh Bluetooth network dynamically selects the optimal path based on link quality, bandwidth and interference conditions; and the Mesh Bluetooth network has a redundancy processing mechanism.

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