LED instrument navigation information synchronization and display method and system based on Bluetooth interconnection and medium

Abstract

The invention provides an LED instrument navigation information synchronization and display method and system based on Bluetooth interconnection and a medium, and belongs to the technical field of intelligent vehicle-mounted electronics. The method comprises the following steps: generating a structured navigation data set through a navigation application, establishing multi-channel connection based on a Bluetooth 5.0 protocol, and transmitting data by adopting a time division multiplexing mechanism; after the vehicle-mounted terminal receives the data, integrity verification is carried out, a vector graph is restored according to a geographic information frame, and display content is dynamically screened in combination with vehicle real-time state parameters; and fusing the navigation information and the road feature layer by using a hardware acceleration rendering engine to generate a signal for driving the LED array display device. According to the invention, through the technologies of dynamic traffic data access, adaptive frequency modulation, priority data scheduling and the like, efficient synchronization and accurate display of navigation information are realized, and the real-time performance, the reliability and the user experience of the vehicle-mounted navigation system are improved.

Description

Technical Field

[0001] The present application relates to the field of intelligent vehicle-mounted electronic technology, and more specifically, to a method, system, and medium for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection. Background Art

[0002] With the prevalence of smart in-vehicle devices, navigation display technology based on LED instruments has been widely used due to its advantages such as high brightness and low power consumption. However, existing in-vehicle navigation systems still have many shortcomings. For example, traditional navigation route planning relies on static map data and lacks real-time access to dynamic traffic information. This results in a disconnect between route planning and actual road conditions, making it difficult to provide the optimal driving plan. Furthermore, Bluetooth data transmission is susceptible to interference from the surrounding electromagnetic environment. Interference from co-frequency signals can cause data loss or transmission delays, affecting the timeliness of navigation information synchronization. Furthermore, during the transmission and display of navigation data, there is a lack of reasonable data priority management and rendering strategies. When system resources are limited, the timely display of key navigation instructions cannot be guaranteed, and the displayed content cannot be dynamically adjusted according to the vehicle status, resulting in a poor user experience. Therefore, a technical solution that can achieve efficient synchronization and accurate display of navigation information is urgently needed. Summary of the Invention

[0003] The purpose of this application is to provide a method, system and medium for synchronizing and displaying navigation information of LED instruments based on Bluetooth interconnection. First, the navigation application is used to access the dynamic traffic information database of the traffic management department and the road condition data interface of the third-party map platform in real time, and the preset traffic congestion algorithm model is used to optimize the path node topology, and the steering instructions and estimated arrival time are corrected synchronously; when establishing a multi-channel connection based on the Bluetooth 5.0 protocol, a frequency detection module is set to monitor the electromagnetic environment, and adaptive frequency modulation technology is used to deal with co-frequency interference; when using the time-sharing multiplexing mechanism to transmit data, a priority flag is set in the data frame header to give priority to scheduling navigation instruction frames; double verification is used for data verification; when restoring vector graphics, a preset algorithm is used to interpolate the coordinates of road nodes; the display content is dynamically adjusted according to the real-time status parameters of the vehicle such as vehicle speed; when rendering, a layered rendering architecture is used to optimize the fusion of navigation information and road feature layers.

[0004] This application provides a method for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection, comprising the following steps: Generate a structured navigation data set through the navigation application, including the path node topology, turn instructions, and estimated arrival time; Establish a multi-channel connection based on the Bluetooth 5.0 protocol, and use a time-division multiplexing mechanism to split the data set into navigation command frames and geographic information frames and transmit them synchronously; After receiving the data, the vehicle terminal performs a data integrity check, performs vector graphics restoration based on the geographic information frame, and dynamically filters the display content in combination with the vehicle's real-time status parameters, including display size adjustment; The navigation information is integrated with the road feature layer through a hardware-accelerated rendering engine to generate a driving signal suitable for the LED array display device.

[0005] Among them, in the method for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection described in this application, when the navigation application generates a structured navigation data set, it also includes: Real-time access to the traffic management department's dynamic traffic information database and the road condition data interface of the third-party map platform; The path node topology is recalculated and optimized through the preset traffic congestion algorithm model, and the steering instructions and estimated arrival time are corrected synchronously.

[0006] Among them, in the method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection described in this application, when establishing a multi-channel connection based on the Bluetooth 5.0 protocol, it also includes: Set up a frequency detection module to monitor the signal frequency distribution of the surrounding electromagnetic environment in real time; When co-channel interference is detected, the frequency channel is automatically switched according to the preset frequency modulation strategy within the frequency band supported by the Bluetooth 5.0 protocol through adaptive frequency modulation technology based on the interference frequency characteristics.

[0007] Among them, in the method for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection described in the present application, when the time-division multiplexing mechanism is used to split the data set into navigation instruction frames and geographic information frames and transmit them synchronously, it also includes: Set a priority flag in the data frame header, where the navigation instruction frame is set to high priority and the geographic information frame is set to low priority; During data transmission, when system resources are tight, navigation instruction frames are scheduled for transmission first.

[0008] Among them, in the method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection described in this application, the vehicle-mounted terminal performs data integrity verification after receiving the data, specifically: First, the CRC cyclic redundancy check algorithm is used to perform preliminary verification on the data; On this basis, the hash check algorithm is used to deeply verify the data content; By generating a hash value for the data and comparing it with the hash value of the sender.

[0009] Among them, in the method for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection described in this application, when restoring vector graphics according to the geographic information frame, it also includes: For the road node coordinate data contained in the geographic information frame, a preset algorithm is used to perform interpolation calculations to generate smooth transition curves between adjacent road nodes, and the road shape is refined by adjusting the control parameters of the smooth transition curves.

[0010] Among them, in the method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection described in this application, the dynamic screening of display content in combination with the real-time status parameters of the vehicle is specifically as follows: Vehicle real-time status parameters include vehicle speed, fuel level, and engine status; The system pre-sets the vehicle speed threshold parameters. When the vehicle speed exceeds the preset threshold, the navigation arrow display size adjustment mechanism is automatically triggered, and its display size is increased by increasing the number of pixels of the navigation arrow or the zoom ratio.

[0011] Among them, in the method for synchronizing and displaying navigation information of LED instruments based on Bluetooth interconnection described in this application, when the navigation information is integrated with the road feature layer through the hardware accelerated rendering engine, specifically: Adopting a layered rendering architecture, the navigation information is divided into a dynamic information layer and a static information layer, and the road feature layer is divided into a basic terrain layer and an auxiliary sign layer; The dynamic information layer includes real-time navigation arrows, and the static information layer includes road name labels; Each layer is rendered independently, with the dynamic information layer being rendered first, the static information layer and the basic terrain layer being cached and rendered, and the auxiliary identification layer being dynamically loaded and rendered according to the current display area.

[0012] In a second aspect, the present application provides a system for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection. The system includes: a memory and a processor. The memory includes a program for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection. When the program for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection is executed by the processor, the following steps are implemented: Generate a structured navigation data set through the navigation application, including the path node topology, turn instructions, and estimated arrival time; Establish a multi-channel connection based on the Bluetooth 5.0 protocol, and use a time-division multiplexing mechanism to split the data set into navigation command frames and geographic information frames and transmit them synchronously; After receiving the data, the vehicle terminal performs a data integrity check, performs vector graphics restoration based on the geographic information frame, and dynamically filters the display content in combination with the vehicle's real-time status parameters; The navigation information is integrated with the road feature layer through a hardware-accelerated rendering engine to generate a driving signal suitable for the LED array display device.

[0013] In a third aspect, the present application also provides a computer-readable storage medium, which includes a method program for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection. When the method program for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection is executed by a processor, the steps of the method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection as described in any one of the above items are implemented.

[0014] From the above, it can be seen that the LED instrument navigation information synchronization and display method, system and medium based on Bluetooth interconnection provided in the embodiment of the present application first access the dynamic traffic information database of the traffic management department and the road condition data interface of the third-party map platform in real time through the navigation application, and use the preset traffic congestion algorithm model to optimize the path node topology, and synchronously correct the steering instructions and estimated arrival time; when establishing a multi-channel connection based on the Bluetooth 5.0 protocol, a frequency detection module is set to monitor the electromagnetic environment, and adaptive frequency modulation technology is used to deal with co-frequency interference; when using the time-sharing multiplexing mechanism to transmit data, a priority flag is set in the data frame header to give priority to scheduling navigation instruction frames; double verification is used for data verification; when restoring vector graphics, a preset algorithm is used to interpolate the coordinates of the road nodes; the display content is dynamically adjusted according to the real-time status parameters of the vehicle such as the vehicle speed; when rendering, a layered rendering architecture is used to optimize the fusion of navigation information and the road feature layer. The beneficial effects of the present invention are: through real-time access to dynamic traffic data, the accuracy and timeliness of route planning are significantly improved; the adaptive frequency modulation technology and priority data scheduling mechanism ensure the stability of Bluetooth data transmission and the priority display of key information; combined with the real-time status of the vehicle, the display content and layered rendering architecture are dynamically adjusted to optimize the user interaction experience, providing a more efficient and intelligent solution for the in-vehicle navigation system.

[0015] Other features and advantages of the present application will be described in the following description, and in part will become apparent from the description, or understood by practicing the embodiments of the present application. The objectives and other advantages of the present application can be achieved and obtained through the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A flowchart of a method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection provided in an embodiment of the present application; Figure 2 A flowchart of the correction of steering instructions and estimated arrival time of the method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection provided in an embodiment of the present application; Figure 3 A flowchart of the automatic switching frequency channel of the method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection provided in an embodiment of the present application; Figure 4 This is a flowchart of executing data integrity verification for the method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection provided in an embodiment of the present application. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work fall within the scope of protection of the present application.

[0019] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions.

[0020] Please refer to Figure 1 , Figure 1 This is a flowchart of a method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection in some embodiments of the present application. This method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection is used in a terminal device, such as a computer or mobile phone terminal. This method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection includes the following steps: S101, generating a structured navigation data set through a navigation application, including a path node topology, turn instructions, and estimated arrival time; S102. Establish a multi-channel connection based on the Bluetooth 5.0 protocol, use a time-division multiplexing mechanism to split the data set into navigation instruction frames and geographic information frames, and transmit them synchronously; S103: After receiving the data, the vehicle terminal performs a data integrity check, performs vector graphics restoration based on the geographic information frame, and dynamically selects display content based on the vehicle's real-time status parameters, including display size adjustment. S104: The navigation information is integrated with the road feature layer through a hardware accelerated rendering engine to generate a driving signal adapted to the LED array display device.

[0021] First, the navigation application accesses the traffic management department's dynamic traffic information database and the road condition data interface of a third-party map platform in real time. The preset traffic congestion algorithm model is used to calculate and optimize the path node topology, and a structured navigation data set containing accurate path node topology, steering instructions, and estimated arrival time is simultaneously generated. Subsequently, a multi-channel connection is established based on the Bluetooth 5.0 protocol, and the frequency detection module is used to monitor the electromagnetic environment in real time. When co-frequency interference occurs, adaptive frequency modulation technology is used to automatically switch frequency channels within the protocol-supported frequency band to ensure connection stability. At the same time, a time-division multiplexing mechanism is used to split the structured data set into navigation instruction frames and geographic information frames, and a priority flag is set in the data frame header, with the navigation instruction frame set to high priority and the geographic information frame set to low priority. This allows navigation instruction frames to be prioritized when system resources are tight during synchronous transmission. After receiving the data, the onboard terminal first performs a preliminary check using a cyclic redundancy check (CRC) algorithm, then uses a hash algorithm to deeply verify the data content. The integrity check is completed by generating a hash value and comparing it with the sender. Next, a preset algorithm (such as the Bezier curve algorithm) is used to interpolate the road node coordinates in the geographic information frame, generating smooth transition curves between adjacent road nodes. Curve control parameters are adjusted to refine the road shape and achieve vector graphics restoration. Simultaneously, the system automatically triggers a navigation arrow resize mechanism when the speed exceeds a preset threshold, increasing the display size by increasing the pixel count or scaling the ratio to achieve dynamic content filtering. Finally, through a hardware-accelerated rendering engine, a layered rendering architecture is used to divide the navigation information into a dynamic information layer and a static information layer. The road feature layer is divided into a base terrain layer and an auxiliary sign layer. Each layer is rendered independently, with the dynamic information layer rendered first, the static information layer and base terrain layer cached, and the auxiliary sign layer dynamically loaded and rendered based on the current display area. Ultimately, a drive signal adapted to the LED array display device is generated, enabling accurate display of navigation information on the LED instrument panel.

[0022] Please refer to Figure 2 , Figure 2 This is a flowchart of the method for synchronizing and displaying navigation information in an LED instrument based on Bluetooth interconnection in some embodiments of the present application, which includes the following steps: S201, real-time access to the traffic management department's dynamic traffic information database and the road condition data interface of the third-party map platform; S202: Recalculate and optimize the path node topology using a preset traffic congestion algorithm model, and simultaneously correct the steering instructions and estimated arrival time.

[0023] The navigation application connects to the traffic management department's dynamic traffic information database and the road condition data interface of a third-party mapping platform in real time, obtaining real-time traffic data including congestion status, accident warnings, and temporary traffic restrictions. This data is integrated with the underlying map data and then recalculated and optimized based on a pre-defined traffic congestion algorithm model. This algorithm analyzes parameters such as road speed and historical congestion patterns to dynamically adjust the connections and weights between path nodes, eliminating congested sections and planning alternative routes. During this process, the system simultaneously adjusts steering instructions to ensure that driving guidance information matches the optimized route. Furthermore, the estimated time of arrival (ETA) is recalculated and revised based on real-time vehicle speed and remaining distance, providing drivers with more accurate trip information. The resulting structured navigation data set includes the optimized path node topology, updated steering instructions, and revised ETA, providing a reliable data foundation for the subsequent transmission and display of navigation information.

[0024] Please refer to Figure 3 , Figure 3 This is a flow chart of the automatic switching frequency channel of the method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection in some embodiments of the present application. According to an embodiment of the present invention, when establishing a multi-channel connection based on the Bluetooth 5.0 protocol, it also includes: S301, setting a frequency detection module to monitor the signal frequency distribution of the surrounding electromagnetic environment in real time; S302: When co-channel interference is detected, the frequency channel is automatically switched according to the preset frequency modulation strategy within the frequency band supported by the Bluetooth 5.0 protocol through adaptive frequency modulation technology based on the interference frequency characteristics.

[0025] During the process of establishing a multi-channel connection based on the Bluetooth 5.0 protocol, the present invention ensures the stability and reliability of data transmission through dynamic monitoring and intelligent frequency modulation mechanisms. Specifically, the system incorporates a frequency detection module that scans and monitors the signal frequency distribution in the surrounding electromagnetic environment in real time, continuously acquiring interference data, including co-channel signal strength and frequency band occupancy. When co-channel interference with the Bluetooth operating band is detected, the system activates adaptive frequency modulation technology. Based on the characteristic parameters of the interfering frequency (such as center frequency, bandwidth, and modulation method), it automatically switches frequency channels according to a preset frequency modulation strategy within the 2.4GHz frequency band supported by the Bluetooth 5.0 protocol. This strategy prioritizes backup channels with low interference intensity and high signal quality, and dynamically migrates data transmission channels by adjusting the carrier frequency of the Bluetooth signal. During this process, the system maintains a synchronous handshake with the communication peer, ensuring uninterrupted and unlost data transmission during channel switching. This effectively mitigates the impact of co-channel interference on Bluetooth connection stability and provides a stable communication link foundation for the reliable transmission of navigation command frames and geographic information frames.

[0026] According to an embodiment of the present invention, when the time-division multiplexing mechanism is used to split the data set into navigation instruction frames and geographic information frames and transmit them synchronously, the method further includes: Set a priority flag in the data frame header, where the navigation instruction frame is set to high priority and the geographic information frame is set to low priority; During data transmission, when system resources are tight, navigation instruction frames are scheduled for transmission first.

[0027] In the process of using a time-division multiplexing mechanism to split a data set into navigation instruction frames and geographic information frames and transmit them synchronously, the present invention ensures the priority transmission of critical navigation information by setting priority identifiers and dynamic scheduling strategies. Specifically, the system sets a priority identifier in the data frame header, marking navigation instruction frames containing core information such as real-time steering instructions and emergency road condition prompts as high priority, while marking geographic information frames containing auxiliary information such as map backgrounds and non-real-time geographic annotations as low priority. During the data transmission process, when system resources are tight (such as a decrease in Bluetooth channel bandwidth or insufficient processing power of the on-board terminal), the scheduler detects the resource status in real time and activates the priority scheduling mechanism, dynamically adjusting the time slice allocation strategy to prioritize the complete and timely transmission of high-priority navigation instruction frames. During this process, the transmission of geographic information frames may be temporarily delayed or adopt a degraded transmission mode (such as reducing the sampling rate or compressing the data volume), but the system ensures their integrity through a caching mechanism and resumes transmission after resources are restored. Through this priority-based time-sharing multiplexing strategy, the system can still ensure that navigation instructions that are critical to driving decisions are displayed first in resource-constrained scenarios, while taking into account the auxiliary role of geographic information, achieving a balanced optimization of data transmission efficiency and user experience.

[0028] Please refer to Figure 4 , Figure 4 This is a flow chart of performing data integrity check of a method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection in some embodiments of the present application. According to an embodiment of the present invention, the vehicle-mounted terminal performs data integrity check after receiving data, specifically: S401, first use CRC cyclic redundancy check algorithm to perform preliminary verification on the data; S402: Based on this, a hash check algorithm is used to deeply verify the data content; S403: Generate a hash value for the data and compare it with the hash value of the sending end.

[0029] The system uses a cyclic redundancy check (CRC) algorithm to perform preliminary verification of received data. This algorithm generates a checksum by performing a polynomial calculation on the data frame content. This checksum is then compared with the CRC value appended to the end of the frame by the sender. If the comparison results differ, it indicates a bit error occurred during data transmission, and the system immediately triggers a retransmission mechanism. Furthermore, the system uses a hash algorithm to further verify the data content. This algorithm applies a cryptographic hash function, such as SHA-256, to the complete data content, generating a fixed-length hash value. This value is then compared with the hash value pre-generated by the sender and transmitted along with the data. Due to the collision resistance of hash functions, even a single bit change in the data can result in a significantly different hash value. This dual verification mechanism combines the efficiency of the CRC algorithm with the security of the hash algorithm: the CRC quickly detects random errors during transmission, while the hash protects against data tampering or malicious attacks. This layered verification strategy ensures efficient verification while strictly guaranteeing data integrity, providing a reliable data foundation for the accurate display of subsequent navigation information.

[0030] According to an embodiment of the present invention, the process of restoring a vector graphic based on a geographic information frame further includes: For the road node coordinate data contained in the geographic information frame, a preset algorithm is used to perform interpolation calculations to generate smooth transition curves between adjacent road nodes, and the road shape is refined by adjusting the control parameters of the smooth transition curves.

[0031] During the vector graphics restoration process based on the geographic information frame, the present invention utilizes interpolation and parameterized curve control technology to achieve refined road shape processing. Specifically, the system first analyzes the coordinate data of discrete road nodes contained in the geographic information frame. These coordinate points constitute the basic skeleton structure of the road. For linear connections between adjacent nodes, the system uses a preset Bezier curve algorithm to perform interpolation calculations. By introducing control point parameters, a smooth transition curve is generated, making the road shape more consistent with the actual terrain characteristics. Furthermore, the system further refines the road shape by adjusting the curve control parameters: for curved areas, the curve curvature parameter is increased to produce a more natural turning arc; for straight areas, parameter fluctuation is reduced to maintain road straightness. Furthermore, the system dynamically adjusts the curve fitting accuracy based on the road grade, using higher-precision fitting parameters for main roads such as expressways, while appropriately reducing the computational complexity for branch roads. This parameterized curve control technology effectively reduces data transmission while ensuring accurate graphics restoration. Only the coordinates of key nodes and control parameters need to be transmitted, rather than the complete road profile data. The resulting vector graphics data, after hardware-accelerated rendering, presents a smooth and precise road shape on the LED instrument, significantly improving the visual effects and user experience of the navigation display.

[0032] According to an embodiment of the present invention, the dynamic screening of display content in combination with the real-time status parameters of the vehicle is specifically as follows: Vehicle real-time status parameters include vehicle speed, fuel level, and engine status; The system pre-sets the vehicle speed threshold parameters. When the vehicle speed exceeds the preset threshold, the navigation arrow display size adjustment mechanism is automatically triggered, and its display size is increased by increasing the number of pixels of the navigation arrow or the zoom ratio.

[0033] The system collects vehicle dynamic parameters, including speed, fuel level, and engine status, in real time and pre-sets a speed threshold parameter (e.g., 80 km / h) in memory. When the speed sensor detects that the vehicle's speed exceeds this threshold, the system automatically triggers a navigation arrow resize adjustment mechanism. This mechanism increases the navigation arrow's display size using two techniques: for bitmap navigation arrows, the system increases the pixel count to ensure sharp edges; for vector-based navigation arrows, the system adjusts the scale ratio to achieve smooth enlargement. The key advantage of this dynamic adjustment mechanism is that, at high speeds, by increasing the display size of key navigation elements, the driver's visual perception is effectively improved, reducing information retrieval delays caused by distracted vision and visual fatigue. The system also continuously monitors vehicle speed changes. When the speed drops below the threshold, the navigation arrow's default display size is automatically restored, preventing oversized elements from occupying excessive screen space and compromising the readability of other driving information. This adaptive display strategy, based on the speed threshold, ensures optimal information presentation in various driving scenarios, significantly enhancing the safety and usability of the navigation system.

[0034] According to an embodiment of the present invention, when the navigation information is integrated with the road feature layer through the hardware accelerated rendering engine, specifically: Adopting a layered rendering architecture, the navigation information is divided into a dynamic information layer and a static information layer, and the road feature layer is divided into a basic terrain layer and an auxiliary sign layer; The dynamic information layer includes real-time navigation arrows, and the static information layer includes road name labels; Each layer is rendered independently, with the dynamic information layer being rendered first, the static information layer and the basic terrain layer being cached and rendered, and the auxiliary identification layer being dynamically loaded and rendered according to the current display area.

[0035] In the process of integrating navigation information with the road feature layer through a hardware-accelerated rendering engine, the present invention adopts a layered rendering architecture to achieve efficient and accurate graphical display. Specifically, the system divides the rendering object into four layers: the navigation information is split into a dynamic information layer and a static information layer. The dynamic information layer contains key information such as navigation arrows and route guidance that are updated in real time, while the static information layer stores relatively stable content such as road name labels and fixed landmark icons. The road feature layer is further divided into a basic terrain layer and an auxiliary identification layer. The former carries basic geographic data such as road outlines and topography, while the latter contains auxiliary navigation elements such as traffic signs and points of interest. Each layer uses a differentiated rendering strategy: the dynamic information layer, due to its extremely high real-time requirements, is prioritized by the system using the hardware-accelerated rendering engine for real-time rendering, ensuring that dynamic changes in navigation arrows (such as turn prompts) can be presented promptly and smoothly. The static information layer and the basic terrain layer, due to their low content update frequency, use a cache rendering mechanism. After the first rendering, the results are stored in the video memory, and subsequently only partially refreshed when the map range changes or the data is updated, thereby significantly reducing the amount of rendering calculations. The auxiliary sign layer is dynamically loaded and rendered based on the current display area. The system uses the positioning information of the on-board terminal to only load traffic signs, POIs, and other data within the visible range of the screen to avoid redundant rendering. Through this layered rendering architecture, the system effectively improves rendering efficiency and reduces hardware resource usage while ensuring the real-time nature of navigation information. Ultimately, it generates high-quality drive signals adapted to the LED array display device, providing the driver with a clear and smooth navigation display interface.

[0036] According to an embodiment of the present invention, when the navigation information is integrated with the road feature layer by the hardware accelerated rendering engine, the method further includes: Real-time acquisition of perception data from the vehicle's advanced driver assistance system, including distance to obstacles ahead, lane line recognition results, and traffic sign recognition information; generating an augmented reality navigation indication layer based on the perception data, spatially aligning navigation arrows, distance prompts and other information with actual road elements; Through the LED instrument's partitioned display technology, the augmented reality navigation indicator layer is superimposed and displayed at the position corresponding to the real road scene.

[0037] The system acquires real-time perception data from the vehicle's Advanced Driver Assistance System (ADAS), including obstacle distances, lane recognition results, and traffic sign recognition information, and generates an augmented reality (AR) navigation guidance layer based on this data. In implementation, the system uses a spatial mapping algorithm to align virtual navigation arrows, distance indicators, and other information with actual road elements in three dimensions. For example, turn arrows are precisely overlaid on the corresponding physical lane lines. Using the LED instrument's zoned display technology, the system fuses the AR navigation guidance layer with the four aforementioned basic layers for rendering, ultimately creating a hybrid virtual-realistic display effect within specific areas of the LED display. For example, when the ADAS identifies an intersection ahead, the AR layer overlays an enlarged turn arrow at the intersection location within the real-world image, dynamically adjusting its size and transparency based on the vehicle's real-time distance from the intersection. This combination of layered rendering and AR technology not only maintains the efficient display of traditional navigation information, but also provides drivers with more intuitive and accurate navigation guidance through a fusion of virtual and real elements, significantly improving driving safety and user experience in complex road conditions.

[0038] According to an embodiment of the present invention, the method of dynamically filtering and displaying content in combination with the real-time status parameters of the vehicle further includes: Establish a V2X communication module to receive real-time driving status data and traffic incident warning information sent by surrounding vehicles; Generate a dynamic risk assessment model based on the V2X data to calculate the risk factor of the vehicle's current driving path; When the risk factor exceeds the preset threshold, the display priority of the navigation instruction frame is automatically increased, and the navigation path is switched from green to orange or red through the color gradient technology of the LED instrument to serve as a warning.

[0039] The system establishes a vehicle-to-everything (V2X) communication module. Using dedicated short-range communications or cellular vehicle-to-everything (C-V2X) technology, it receives real-time driving status data (such as speed, acceleration, and braking status) and traffic event warnings (such as accidents and road construction) from surrounding vehicles. Based on this multi-source V2X data, the system constructs a dynamic risk assessment model. This model uses a Bayesian network algorithm, combining parameters such as the vehicle's current position, direction of travel, and surrounding vehicle density to calculate the risk factor for the current driving path in real time. For example, if a vehicle brakes suddenly 500 meters ahead, the model will comprehensively consider factors such as the vehicle's speed, braking distance, and the following distance to the vehicle behind it, dynamically increasing the risk score for that road section. When the risk factor exceeds a preset threshold (e.g., 0.7), the system automatically triggers a two-level response mechanism. First, by adjusting the priority flag in the Bluetooth communication protocol, the navigation command frame's transmission priority is raised from high to highest, ensuring that critical information such as emergency steering and risk avoidance instructions are transmitted first. Secondly, the system uses color gradient technology on the LED instrument panel to provide a visual risk warning. The navigation path, originally displayed in green, gradually switches to orange (medium risk) or red (high risk), while also increasing the flashing frequency of the navigation arrow. This color gradient is implemented using a linear interpolation algorithm in the HSV color space, ensuring a natural color transition that aligns with human visual perception. For example, when the risk factor increases from 0.7 to 0.9, the navigation path color smoothly transitions from RGB (0,255,0) to RGB (255,165,0) and then to RGB (255,0,0) over a period of two seconds, giving the driver a clear sense of the change in risk level.

[0040] The present invention also discloses a Bluetooth-based LED instrument navigation information synchronization and display system, comprising a memory and a processor. The memory includes a Bluetooth-based LED instrument navigation information synchronization and display method program. When the Bluetooth-based LED instrument navigation information synchronization and display method program is executed by the processor, the following steps are implemented: Generate a structured navigation data set through the navigation application, including the path node topology, turn instructions, and estimated arrival time; Establish a multi-channel connection based on the Bluetooth 5.0 protocol, and use a time-division multiplexing mechanism to split the data set into navigation command frames and geographic information frames and transmit them synchronously; After receiving the data, the vehicle terminal performs a data integrity check, performs vector graphics restoration based on the geographic information frame, and dynamically filters the display content in combination with the vehicle's real-time status parameters, including display size adjustment; The navigation information is integrated with the road feature layer through a hardware-accelerated rendering engine to generate a driving signal suitable for the LED array display device.

[0041] First, the navigation application accesses the traffic management department's dynamic traffic information database and the road condition data interface of a third-party map platform in real time. The preset traffic congestion algorithm model is used to calculate and optimize the path node topology, and a structured navigation data set containing accurate path node topology, steering instructions, and estimated arrival time is simultaneously generated. Subsequently, a multi-channel connection is established based on the Bluetooth 5.0 protocol, and the frequency detection module is used to monitor the electromagnetic environment in real time. When co-frequency interference occurs, adaptive frequency modulation technology is used to automatically switch frequency channels within the protocol-supported frequency band to ensure connection stability. At the same time, a time-division multiplexing mechanism is used to split the structured data set into navigation instruction frames and geographic information frames, and a priority flag is set in the data frame header, with the navigation instruction frame set to high priority and the geographic information frame set to low priority. This allows navigation instruction frames to be prioritized when system resources are tight during synchronous transmission. After receiving the data, the onboard terminal first performs a preliminary check using a cyclic redundancy check (CRC) algorithm, then uses a hash algorithm to deeply verify the data content. The integrity check is completed by generating a hash value and comparing it with the sender. Next, a preset algorithm (such as the Bezier curve algorithm) is used to interpolate the road node coordinates in the geographic information frame, generating smooth transition curves between adjacent road nodes. Curve control parameters are adjusted to refine the road shape and achieve vector graphics restoration. Simultaneously, the system automatically triggers a navigation arrow resize mechanism when the speed exceeds a preset threshold, increasing the display size by increasing the pixel count or scaling the ratio to achieve dynamic content filtering. Finally, through a hardware-accelerated rendering engine, a layered rendering architecture is used to divide the navigation information into a dynamic information layer and a static information layer. The road feature layer is divided into a base terrain layer and an auxiliary sign layer. Each layer is rendered independently, with the dynamic information layer rendered first, the static information layer and base terrain layer cached, and the auxiliary sign layer dynamically loaded and rendered based on the current display area. Ultimately, a drive signal adapted to the LED array display device is generated, enabling accurate display of navigation information on the LED instrument panel.

[0042] According to an embodiment of the present invention, when the navigation application generates a structured navigation data set, it further includes: Real-time access to the traffic management department's dynamic traffic information database and the road condition data interface of the third-party map platform; The path node topology is recalculated and optimized through the preset traffic congestion algorithm model, and the steering instructions and estimated arrival time are corrected synchronously.

[0043] The navigation application connects to the traffic management department's dynamic traffic information database and the road condition data interface of a third-party mapping platform in real time, obtaining real-time traffic data including congestion status, accident warnings, and temporary traffic restrictions. This data is integrated with the underlying map data and then recalculated and optimized based on a pre-defined traffic congestion algorithm model. This algorithm analyzes parameters such as road speed and historical congestion patterns to dynamically adjust the connections and weights between path nodes, eliminating congested sections and planning alternative routes. During this process, the system simultaneously adjusts steering instructions to ensure that driving guidance information matches the optimized route. Furthermore, the estimated time of arrival (ETA) is recalculated and revised based on real-time vehicle speed and remaining distance, providing drivers with more accurate trip information. The resulting structured navigation data set includes the optimized path node topology, updated steering instructions, and revised ETA, providing a reliable data foundation for the subsequent transmission and display of navigation information.

[0044] According to an embodiment of the present invention, when establishing a multi-channel connection based on the Bluetooth 5.0 protocol, the method further includes: Set up a frequency detection module to monitor the signal frequency distribution of the surrounding electromagnetic environment in real time; When co-channel interference is detected, the frequency channel is automatically switched according to the preset frequency modulation strategy within the frequency band supported by the Bluetooth 5.0 protocol through adaptive frequency modulation technology based on the interference frequency characteristics.

[0045] During the process of establishing a multi-channel connection based on the Bluetooth 5.0 protocol, the present invention ensures the stability and reliability of data transmission through dynamic monitoring and intelligent frequency modulation mechanisms. Specifically, the system incorporates a frequency detection module that scans and monitors the signal frequency distribution in the surrounding electromagnetic environment in real time, continuously acquiring interference data, including co-channel signal strength and frequency band occupancy. When co-channel interference with the Bluetooth operating band is detected, the system activates adaptive frequency modulation technology. Based on the characteristic parameters of the interfering frequency (such as center frequency, bandwidth, and modulation method), it automatically switches frequency channels according to a preset frequency modulation strategy within the 2.4GHz frequency band supported by the Bluetooth 5.0 protocol. This strategy prioritizes backup channels with low interference intensity and high signal quality, and dynamically migrates data transmission channels by adjusting the carrier frequency of the Bluetooth signal. During this process, the system maintains a synchronous handshake with the communication peer, ensuring uninterrupted and unlost data transmission during channel switching. This effectively mitigates the impact of co-channel interference on Bluetooth connection stability and provides a stable communication link foundation for the reliable transmission of navigation command frames and geographic information frames.

[0046] According to an embodiment of the present invention, when the time-division multiplexing mechanism is used to split the data set into navigation instruction frames and geographic information frames and transmit them synchronously, the method further includes: Set a priority flag in the data frame header, where the navigation instruction frame is set to high priority and the geographic information frame is set to low priority; During data transmission, when system resources are tight, navigation instruction frames are scheduled for transmission first.

[0047] In the process of using a time-division multiplexing mechanism to split a data set into navigation instruction frames and geographic information frames and transmit them synchronously, the present invention ensures the priority transmission of critical navigation information by setting priority identifiers and dynamic scheduling strategies. Specifically, the system sets a priority identifier in the data frame header, marking navigation instruction frames containing core information such as real-time steering instructions and emergency road condition prompts as high priority, while marking geographic information frames containing auxiliary information such as map backgrounds and non-real-time geographic annotations as low priority. During the data transmission process, when system resources are tight (such as a decrease in Bluetooth channel bandwidth or insufficient processing power of the on-board terminal), the scheduler detects the resource status in real time and activates the priority scheduling mechanism, dynamically adjusting the time slice allocation strategy to prioritize the complete and timely transmission of high-priority navigation instruction frames. During this process, the transmission of geographic information frames may be temporarily delayed or adopt a degraded transmission mode (such as reducing the sampling rate or compressing the data volume), but the system ensures their integrity through a caching mechanism and resumes transmission after resources are restored. Through this priority-based time-sharing multiplexing strategy, the system can still ensure that navigation instructions that are critical to driving decisions are displayed first in resource-constrained scenarios, while taking into account the auxiliary role of geographic information, achieving a balanced optimization of data transmission efficiency and user experience.

[0048] According to an embodiment of the present invention, the vehicle-mounted terminal performs data integrity verification after receiving the data, specifically: First, the CRC cyclic redundancy check algorithm is used to perform preliminary verification on the data; On this basis, the hash check algorithm is used to deeply verify the data content; By generating a hash value for the data and comparing it with the hash value of the sender.

[0049] The system uses a cyclic redundancy check (CRC) algorithm to perform preliminary verification of received data. This algorithm generates a checksum by performing a polynomial calculation on the data frame content. This checksum is then compared with the CRC value appended to the end of the frame by the sender. If the comparison results differ, it indicates a bit error occurred during data transmission, and the system immediately triggers a retransmission mechanism. Furthermore, the system uses a hash algorithm to further verify the data content. This algorithm applies a cryptographic hash function, such as SHA-256, to the complete data content, generating a fixed-length hash value. This value is then compared with the hash value pre-generated by the sender and transmitted along with the data. Due to the collision resistance of hash functions, even a single bit change in the data can result in a significantly different hash value. This dual verification mechanism combines the efficiency of the CRC algorithm with the security of the hash algorithm: the CRC quickly detects random errors during transmission, while the hash protects against data tampering or malicious attacks. This layered verification strategy ensures efficient verification while strictly guaranteeing data integrity, providing a reliable data foundation for the accurate display of subsequent navigation information.

[0050] According to an embodiment of the present invention, the process of restoring a vector graphic based on a geographic information frame further includes: For the road node coordinate data contained in the geographic information frame, a preset algorithm is used to perform interpolation calculations to generate smooth transition curves between adjacent road nodes, and the road shape is refined by adjusting the control parameters of the smooth transition curves.

[0051] During the vector graphics restoration process based on the geographic information frame, the present invention utilizes interpolation and parameterized curve control technology to achieve refined road shape processing. Specifically, the system first analyzes the coordinate data of discrete road nodes contained in the geographic information frame. These coordinate points constitute the basic skeleton structure of the road. For linear connections between adjacent nodes, the system uses a preset Bezier curve algorithm to perform interpolation calculations. By introducing control point parameters, a smooth transition curve is generated, making the road shape more consistent with the actual terrain characteristics. Furthermore, the system further refines the road shape by adjusting the curve control parameters: for curved areas, the curve curvature parameter is increased to produce a more natural turning arc; for straight areas, parameter fluctuation is reduced to maintain road straightness. Furthermore, the system dynamically adjusts the curve fitting accuracy based on the road grade, using higher-precision fitting parameters for main roads such as expressways, while appropriately reducing the computational complexity for branch roads. This parameterized curve control technology effectively reduces data transmission while ensuring accurate graphics restoration. Only the coordinates of key nodes and control parameters need to be transmitted, rather than the complete road profile data. The resulting vector graphics data, after hardware-accelerated rendering, presents a smooth and precise road shape on the LED instrument, significantly improving the visual effects and user experience of the navigation display.

[0052] According to an embodiment of the present invention, the dynamic screening of display content in combination with the real-time status parameters of the vehicle is specifically as follows: Vehicle real-time status parameters include vehicle speed, fuel level, and engine status; The system pre-sets the vehicle speed threshold parameters. When the vehicle speed exceeds the preset threshold, the navigation arrow display size adjustment mechanism is automatically triggered, and its display size is increased by increasing the number of pixels of the navigation arrow or the zoom ratio.

[0053] The system collects vehicle dynamic parameters, including speed, fuel level, and engine status, in real time and pre-sets a speed threshold parameter (e.g., 80 km / h) in memory. When the speed sensor detects that the vehicle's speed exceeds this threshold, the system automatically triggers a navigation arrow resize adjustment mechanism. This mechanism increases the navigation arrow's display size using two techniques: for bitmap navigation arrows, the system increases the pixel count to ensure sharp edges; for vector-based navigation arrows, the system adjusts the scale ratio to achieve smooth enlargement. The key advantage of this dynamic adjustment mechanism is that, at high speeds, by increasing the display size of key navigation elements, the driver's visual perception is effectively improved, reducing information retrieval delays caused by distracted vision and visual fatigue. The system also continuously monitors vehicle speed changes. When the speed drops below the threshold, the navigation arrow's default display size is automatically restored, preventing oversized elements from occupying excessive screen space and compromising the readability of other driving information. This adaptive display strategy, based on the speed threshold, ensures optimal information presentation in various driving scenarios, significantly enhancing the safety and usability of the navigation system.

[0054] According to an embodiment of the present invention, when the navigation information is integrated with the road feature layer through the hardware accelerated rendering engine, specifically: Adopting a layered rendering architecture, the navigation information is divided into a dynamic information layer and a static information layer, and the road feature layer is divided into a basic terrain layer and an auxiliary sign layer; The dynamic information layer includes real-time navigation arrows, and the static information layer includes road name labels; Each layer is rendered independently, with the dynamic information layer being rendered first, the static information layer and the basic terrain layer being cached and rendered, and the auxiliary identification layer being dynamically loaded and rendered according to the current display area.

[0055] In the process of integrating navigation information with the road feature layer through a hardware-accelerated rendering engine, the present invention adopts a layered rendering architecture to achieve efficient and accurate graphical display. Specifically, the system divides the rendering object into four layers: the navigation information is split into a dynamic information layer and a static information layer. The dynamic information layer contains key information such as navigation arrows and route guidance that are updated in real time, while the static information layer stores relatively stable content such as road name labels and fixed landmark icons. The road feature layer is further divided into a basic terrain layer and an auxiliary identification layer. The former carries basic geographic data such as road outlines and topography, while the latter contains auxiliary navigation elements such as traffic signs and points of interest. Each layer uses a differentiated rendering strategy: the dynamic information layer, due to its extremely high real-time requirements, is prioritized by the system using the hardware-accelerated rendering engine for real-time rendering, ensuring that dynamic changes in navigation arrows (such as turn prompts) can be presented promptly and smoothly. The static information layer and the basic terrain layer, due to their low content update frequency, use a cache rendering mechanism. After the first rendering, the results are stored in the video memory, and subsequently only partially refreshed when the map range changes or the data is updated, thereby significantly reducing the amount of rendering calculations. The auxiliary sign layer is dynamically loaded and rendered based on the current display area. The system uses the positioning information of the on-board terminal to only load traffic signs, POIs, and other data within the visible range of the screen to avoid redundant rendering. Through this layered rendering architecture, the system effectively improves rendering efficiency and reduces hardware resource usage while ensuring the real-time nature of navigation information. Ultimately, it generates high-quality drive signals adapted to the LED array display device, providing the driver with a clear and smooth navigation display interface.

[0056] According to an embodiment of the present invention, when the navigation information is integrated with the road feature layer by the hardware accelerated rendering engine, the method further includes: Real-time acquisition of perception data from the vehicle's advanced driver assistance system, including distance to obstacles ahead, lane line recognition results, and traffic sign recognition information; generating an augmented reality navigation indication layer based on the perception data, spatially aligning navigation arrows, distance prompts and other information with actual road elements; Through the LED instrument's partitioned display technology, the augmented reality navigation indicator layer is superimposed and displayed at the position corresponding to the real road scene.

[0057] The system acquires real-time perception data from the vehicle's Advanced Driver Assistance System (ADAS), including obstacle distances, lane recognition results, and traffic sign recognition information, and generates an augmented reality (AR) navigation guidance layer based on this data. In implementation, the system uses a spatial mapping algorithm to align virtual navigation arrows, distance indicators, and other information with actual road elements in three dimensions. For example, turn arrows are precisely overlaid on the corresponding physical lane lines. Using the LED instrument's zoned display technology, the system fuses the AR navigation guidance layer with the four aforementioned basic layers for rendering, ultimately creating a hybrid virtual-realistic display effect within specific areas of the LED display. For example, when the ADAS identifies an intersection ahead, the AR layer overlays an enlarged turn arrow at the intersection location within the real-world image, dynamically adjusting its size and transparency based on the vehicle's real-time distance from the intersection. This combination of layered rendering and AR technology not only maintains the efficient display of traditional navigation information, but also provides drivers with more intuitive and accurate navigation guidance through a fusion of virtual and real elements, significantly improving driving safety and user experience in complex road conditions.

[0058] According to an embodiment of the present invention, the method of dynamically filtering and displaying content in combination with the real-time status parameters of the vehicle further includes: Establish a V2X communication module to receive real-time driving status data and traffic incident warning information sent by surrounding vehicles; Generate a dynamic risk assessment model based on the V2X data to calculate the risk factor of the vehicle's current driving path; When the risk factor exceeds the preset threshold, the display priority of the navigation instruction frame is automatically increased, and the navigation path is switched from green to orange or red through the color gradient technology of the LED instrument to serve as a warning.

[0059] The system establishes a vehicle-to-everything (V2X) communication module. Using dedicated short-range communications or cellular vehicle-to-everything (C-V2X) technology, it receives real-time driving status data (such as speed, acceleration, and braking status) and traffic event warnings (such as accidents and road construction) from surrounding vehicles. Based on this multi-source V2X data, the system constructs a dynamic risk assessment model. This model uses a Bayesian network algorithm, combining parameters such as the vehicle's current position, direction of travel, and surrounding vehicle density to calculate the risk factor for the current driving path in real time. For example, if a vehicle brakes suddenly 500 meters ahead, the model will comprehensively consider factors such as the vehicle's speed, braking distance, and the following distance to the vehicle behind it, dynamically increasing the risk score for that road section. When the risk factor exceeds a preset threshold (e.g., 0.7), the system automatically triggers a two-level response mechanism. First, by adjusting the priority flag in the Bluetooth communication protocol, the navigation command frame's transmission priority is raised from high to highest, ensuring that critical information such as emergency steering and risk avoidance instructions are transmitted first. Secondly, the system uses color gradient technology on the LED instrument panel to provide a visual risk warning. The navigation path, originally displayed in green, gradually switches to orange (medium risk) or red (high risk), while also increasing the flashing frequency of the navigation arrow. This color gradient is implemented using a linear interpolation algorithm in the HSV color space, ensuring a natural color transition that aligns with human visual perception. For example, when the risk factor increases from 0.7 to 0.9, the navigation path color smoothly transitions from RGB (0,255,0) to RGB (255,165,0) and then to RGB (255,0,0) over a period of two seconds, giving the driver a clear sense of the change in risk level.

[0060] A third aspect of the present invention provides a computer-readable storage medium, which includes a program for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection. When the program for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection is executed by a processor, the steps of the method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection as described in any one of the above items are implemented.

[0061] The present invention discloses a method, system and medium for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection, which realizes accurate and efficient presentation of navigation information through multi-dimensional technological innovation. First, the navigation application accesses the dynamic traffic information database of the traffic management department and the road condition data interface of the third-party map platform in real time, uses a preset traffic congestion algorithm model, optimizes the path node topology based on parameters such as road section speed and historical congestion patterns, and synchronously corrects the steering instructions and estimated arrival time to generate a structured navigation data set. During data transmission, a multi-channel connection is established based on the Bluetooth 5.0 protocol, and the frequency detection module is used to monitor the electromagnetic environment in real time. Adaptive frequency modulation technology is used to avoid co-frequency interference; a time-sharing multiplexing mechanism is used to split the data into navigation instruction frames and geographic information frames, and a priority flag is set in the data frame header to ensure that the navigation instruction frame is transmitted first when system resources are tight. In the data verification link, a CRC cyclic redundancy check algorithm and a hash check algorithm are used for double verification. The former quickly detects transmission errors, and the latter prevents data tampering. Secondly, the Bezier curve algorithm is used to interpolate and refine the coordinates of road nodes in the geographic information frame to achieve vector graphics restoration. Real-time vehicle status parameters such as speed, fuel level, and engine status are combined to automatically adjust the navigation arrow display size when the speed exceeds a preset threshold. A V2X communication module is also established to receive information on the driving status of surrounding vehicles and traffic incident warnings. A dynamic risk assessment model is constructed based on a Bayesian network algorithm. When the risk factor exceeds a threshold, the navigation command frame transmission priority is increased, and the risk is indicated by color gradient technology on the LED instrument panel. During the rendering process, a layered rendering architecture is adopted, dividing the navigation information into dynamic and static information layers. The road feature layer is divided into a base terrain layer and an auxiliary sign layer. The dynamic information layer is rendered first, the static information layer and the base terrain layer are cached, and the auxiliary sign layer is loaded on demand. The system also acquires real-time perception data from the vehicle's ADAS system to generate an augmented reality navigation indicator layer. Using a spatial mapping algorithm and LED instrument panel display technology, the virtual navigation information is accurately overlaid with the real road scene. Ultimately, the system generates drive signals adapted to the LED array display device, providing the driver with a real-time, safe, and intuitive navigation display experience.

[0062] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0063] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed across multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0064] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0065] Those skilled in the art will understand that all or part of the steps of implementing the above-mentioned method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a readable storage medium. When the program is executed, it executes the steps of the above-mentioned method embodiment; and the aforementioned storage medium includes: mobile storage devices, read-only memories, random access memories, magnetic disks or optical disks, and other media that can store program codes.

[0066] Alternatively, if the integrated units described above are implemented as software functional modules and sold or used as standalone products, they can also be stored on a readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present invention, or the portion that contributes to the prior art, can be embodied in the form of a software product. This software product, stored on a storage medium, includes instructions for enabling a computer device (such as a personal computer, server, or network device) to execute all or part of the methods described in the various embodiments of the present invention. The aforementioned storage media include various media capable of storing program code, such as removable storage devices, ROM, RAM, magnetic disks, or optical disks.

Claims

1. A method for synchronizing and displaying navigation information of LED instruments based on Bluetooth interconnection, characterized in that: The following steps are involved: Generate a structured navigation data set through the navigation application, including the path node topology, turn instructions, and estimated arrival time; Establish a multi-channel connection based on the Bluetooth 5.0 protocol, and use a time-division multiplexing mechanism to split the data set into navigation command frames and geographic information frames and transmit them synchronously; After receiving the data, the vehicle terminal performs a data integrity check, performs vector graphics restoration based on the geographic information frame, and dynamically filters the display content in combination with the vehicle's real-time status parameters, including display size adjustment; The navigation information is integrated with the road feature layer through a hardware-accelerated rendering engine to generate a driving signal suitable for the LED array display device.

2. The method for synchronizing and displaying navigation information of LED instruments based on Bluetooth interconnection according to claim 1, characterized in that: When the navigation application generates a structured navigation data set, it also includes: Real-time access to the traffic management department's dynamic traffic information database and the road condition data interface of the third-party map platform; The path node topology is recalculated and optimized through the preset traffic congestion algorithm model, and the steering instructions and estimated arrival time are corrected synchronously.

3. The method for synchronizing and displaying navigation information of LED instruments based on Bluetooth interconnection according to claim 1, characterized in that: When establishing a multi-channel connection based on the Bluetooth 5.0 protocol, the method further includes: Set up a frequency detection module to monitor the signal frequency distribution of the surrounding electromagnetic environment in real time; When co-channel interference is detected, the frequency channel is automatically switched according to the preset frequency modulation strategy within the frequency band supported by the Bluetooth 5.0 protocol through adaptive frequency modulation technology based on the interference frequency characteristics.

4. The method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection according to claim 1, characterized in that: When the time-division multiplexing mechanism is used to split the data set into navigation instruction frames and geographic information frames and transmit them synchronously, the method further includes: Set a priority flag in the data frame header, where the navigation instruction frame is set to high priority and the geographic information frame is set to low priority; During data transmission, when system resources are tight, navigation instruction frames are scheduled for transmission first.

5. The method for synchronizing and displaying navigation information of LED instruments based on Bluetooth interconnection according to claim 1, characterized in that: After receiving the data, the vehicle terminal performs a data integrity check, specifically: First, the CRC cyclic redundancy check algorithm is used to perform preliminary verification on the data; On this basis, the hash check algorithm is used to deeply verify the data content; By generating a hash value for the data and comparing it with the hash value of the sender.

6. The method for synchronizing and displaying navigation information of LED instruments based on Bluetooth interconnection according to claim 1, characterized in that: Restoring the vector graphics according to the geographic information frame also includes: For the road node coordinate data contained in the geographic information frame, a preset algorithm is used to perform interpolation calculations to generate smooth transition curves between adjacent road nodes, and the road shape is refined by adjusting the control parameters of the smooth transition curves.

7. The method for synchronizing and displaying navigation information of LED instruments based on Bluetooth interconnection according to claim 1, characterized in that: The dynamic screening and display of content in combination with the real-time status parameters of the vehicle is specifically as follows: Vehicle real-time status parameters include speed, fuel level, and engine status; The system pre-sets the vehicle speed threshold parameters. When the vehicle speed exceeds the preset threshold, the navigation arrow display size adjustment mechanism is automatically triggered, and its display size is increased by increasing the number of pixels of the navigation arrow or the zoom ratio.

8. The method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection according to claim 1, characterized in that: When the navigation information is integrated with the road feature layer through the hardware accelerated rendering engine, specifically: Adopting a layered rendering architecture, the navigation information is divided into a dynamic information layer and a static information layer, and the road feature layer is divided into a basic terrain layer and an auxiliary sign layer; The dynamic information layer includes real-time navigation arrows, and the static information layer includes road name labels; Each layer is rendered independently, with the dynamic information layer being rendered first, the static information layer and the basic terrain layer being cached, and the auxiliary identification layer being dynamically loaded and rendered according to the current display area.

9. The LED instrument navigation information synchronization and display system based on Bluetooth interconnection is characterized by: The system comprises a memory and a processor, wherein the memory includes a program for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection. When the program is executed by the processor, the following steps are implemented, specifically: Generate a structured navigation data set through the navigation application, including the path node topology, turn instructions, and estimated arrival time; Establish a multi-channel connection based on the Bluetooth 5.0 protocol, and use a time-division multiplexing mechanism to split the data set into navigation command frames and geographic information frames and transmit them synchronously; After receiving the data, the vehicle terminal performs a data integrity check, performs vector graphics restoration based on the geographic information frame, and dynamically filters the display content in combination with the vehicle's real-time status parameters; The navigation information is integrated with the road feature layer through a hardware-accelerated rendering engine to generate a driving signal suitable for the LED array display device.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium includes a method program for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection. When the method program for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection is executed by a processor, the steps of the method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection as described in any one of claims 1 to 8 are implemented.

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