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

Abstract

The application provides a LED instrument navigation information synchronization and display method, system and medium based on Bluetooth interconnection, 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 a multi-channel connection based on a Bluetooth 5.0 protocol and transmitting data by using a time division multiplexing mechanism; performing integrity checking on the data received by a vehicle-mounted terminal, restoring a vector graph according to a geographic information frame, and dynamically filtering and displaying content in combination with real-time state parameters of a vehicle; and fusing navigation information and a road feature layer by using a hardware acceleration rendering engine to generate a signal for driving an LED array display device. Through the technologies of dynamic traffic data access, adaptive frequency modulation, priority data scheduling and the like, the application realizes efficient synchronization and accurate display of navigation information, and improves the real-time performance, reliability and user experience of a vehicle-mounted navigation system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent vehicle-mounted electronics, in particular to an LED instrument navigation information synchronization and display method, system and medium based on Bluetooth interconnection. BACKGROUND

[0002] With the popularization of intelligent vehicle-mounted devices, navigation display technology based on LED instruments is widely used due to its high brightness and low power consumption. However, the existing vehicle-mounted navigation system still has many shortcomings, such as the traditional navigation path planning relying on static map data, which cannot access real-time dynamic traffic information, resulting in a disconnection between path planning and actual road conditions, making it difficult to provide an optimal driving plan; in the process of Bluetooth data transmission, it is easy to be disturbed by the surrounding electromagnetic environment, and the same frequency signal interference will cause data packet loss or transmission delay, affecting the timeliness of navigation information synchronization; and in the process of navigation data transmission and display, there is a lack of reasonable data priority management and rendering strategy, which cannot guarantee the timely display of key navigation instructions when the system resources are tight, and the display content cannot be dynamically adjusted according to the vehicle state, resulting in poor user experience. Therefore, there is an urgent need for a technical solution that can realize efficient synchronization and accurate display of navigation information. SUMMARY

[0003] The purpose of the present application is to provide an LED instrument navigation information synchronization and display method, system and medium based on Bluetooth interconnection. First, through the navigation application, real-time access is made to the dynamic traffic information database of the traffic management department and the road condition data interface of the third-party map platform, the path node topology is optimized using a preset traffic congestion algorithm model, the turning instructions and estimated arrival time are synchronized and corrected; when establishing multi-channel connection based on 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 the same frequency interference; when transmitting data using time-division multiplexing mechanism, a priority identification bit is set in the data frame header, and the navigation instruction frame is preferentially scheduled; double verification is used for data verification; when restoring vector graphics, a preset algorithm is used to perform interpolation calculation on the road node coordinates; the display content is dynamically adjusted according to the real-time state 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 layer.

[0004] The present application provides an LED instrument navigation information synchronization and display method based on Bluetooth interconnection, comprising the following steps:

[0005] Generating a structured navigation data set through a navigation application, including path node topology, turning instructions and estimated arrival time;

[0006] Establishing multi-channel connection based on Bluetooth 5.0 protocol, and using time-division multiplexing mechanism to split the data set into navigation instruction frames and geographic information frames and synchronously transmit them;

[0007] The vehicle-mounted terminal receives data, performs data integrity check, restores vector graphics according to the geographic information frame, dynamically filters display content in combination with real-time state parameters of the vehicle, and the display content includes display size adjustment.

[0008] The navigation information is fused with the road feature layer through a hardware acceleration rendering engine to generate a driving signal adapted to the LED array display device.

[0009] In the method, when the navigation application generates the structured navigation data set, the following steps are further included:

[0010] Real-time access to a dynamic traffic information database of a traffic management department and a road condition data interface of a third-party map platform;

[0011] The path node topology is recalculated and optimized through a preset traffic congestion algorithm model, and the turning instruction and the estimated arrival time are simultaneously corrected.

[0012] In the method, when the multi-channel connection is established based on the Bluetooth 5.0 protocol, the following steps are further included:

[0013] A frequency detection module is arranged to monitor the signal frequency distribution of the surrounding electromagnetic environment in real time.

[0014] When the same frequency interference is detected, the frequency channel is automatically switched according to a preset frequency switching strategy within the frequency range supported by the Bluetooth 5.0 protocol through an adaptive frequency modulation technology according to the interference frequency characteristics.

[0015] In the method, when the data set is split into the navigation instruction frame and the geographic information frame and is synchronously transmitted through the time division multiplexing mechanism, the following steps are further included:

[0016] Priority identification bits are arranged in the data frame header, the navigation instruction frame is set as high priority, and the geographic information frame is set as low priority.

[0017] During the data transmission process, when the system resources are tight, the navigation instruction frame is preferentially scheduled for transmission.

[0018] In the method, after the vehicle-mounted terminal receives the data, the data integrity check is performed, and specifically the following steps are included:

[0019] First, the CRC (Cyclic Redundancy Check) algorithm is used to preliminarily check the data;

[0020] On this basis, the hash check algorithm is used to deeply verify the data content.

[0021] By generating a hash value of the data and comparing it with the hash value of the sending end.

[0022] In the method for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection, when the vector graphics are restored according to the geographic information frame, the method further includes the following steps of:

[0023] For the road node coordinate data contained in the geographic information frame, a preset algorithm is used to perform interpolation calculation, a smooth transition curve is generated between adjacent road nodes, and the control parameters of the smooth transition curve are adjusted to finely process the road shape.

[0024] In the method for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection, the dynamic filtering and displaying of the content in combination with the real-time state parameters of the vehicle are specifically as follows:

[0025] The real-time state parameters of the vehicle include vehicle speed, fuel quantity, and engine state.

[0026] The system is provided with a vehicle speed threshold parameter, when the vehicle speed exceeds the preset threshold, a navigation arrow display size adjustment mechanism is automatically triggered, and the display size of the navigation arrow is increased by increasing the number of pixels or the zoom ratio.

[0027] In the method for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection, when the navigation information is fused with the road feature layer through the hardware acceleration rendering engine, the method specifically includes the following steps of:

[0028] A layered rendering architecture is adopted, 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 identification layer.

[0029] The dynamic information layer includes a real-time navigation arrow, and the static information layer includes a road name label.

[0030] Each layer is independently rendered, wherein the dynamic information layer is preferentially rendered, the static information layer and the basic terrain layer are cached and rendered, and the auxiliary identification layer is dynamically loaded and rendered according to the current display area.

[0031] In a second aspect, the application provides a system for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection, which includes a memory and a processor, the memory includes a program of the method for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection, and the program of the method for synchronizing and displaying navigation information of an LED instrument based on Bluetooth interconnection is executed by the processor to realize the following steps:

[0032] A structured navigation data set is generated by a navigation application, including path node topology, turning instructions, and estimated arrival time.

[0033] A multi-channel connection is established based on the Bluetooth 5.0 protocol, and a time-division multiplexing mechanism is used to split the data set into navigation command frames and geographic information frames and transmit them synchronously.

[0034] After receiving the data, the vehicle terminal performs a data integrity check, restores the vector graphics based on the geographic information frame, and dynamically filters the displayed content in combination with the vehicle's real-time status parameters.

[0035] The hardware-accelerated rendering engine fuses navigation information with road feature layers to generate drive signals adapted to LED array display devices.

[0036] Thirdly, this application also provides a computer-readable storage medium, which includes a Bluetooth-connected LED instrument navigation information synchronization and display method program. When the Bluetooth-connected LED instrument navigation information synchronization and display method program is executed by a processor, it implements the steps of the Bluetooth-connected LED instrument navigation information synchronization and display method as described in any of the above claims.

[0037] As can be seen from the above, the method, system, and medium for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection provided in this application firstly 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 through the navigation application. It optimizes the path node topology using a preset traffic congestion algorithm model and synchronously corrects 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-channel interference. When transmitting data using a time-division multiplexing mechanism, a priority flag bit is set in the header of the data frame to prioritize the scheduling of navigation instruction frames. Data verification adopts dual verification. When restoring vector graphics, a preset algorithm is used to interpolate the coordinates of road nodes. The displayed content is dynamically adjusted according to the real-time vehicle status parameters such as vehicle speed. During rendering, a layered rendering architecture is used to optimize the fusion of navigation information and road feature layers. The beneficial effects of this invention are as follows: by accessing dynamic traffic data in real time, the accuracy and timeliness of route planning are significantly improved; adaptive frequency modulation technology and priority data scheduling mechanism ensure the stability of Bluetooth data transmission and the priority display of key information; and by combining the real-time vehicle status to dynamically adjust the display content and the layered rendering architecture, the user interaction experience is optimized, providing a more efficient and intelligent solution for in-vehicle navigation systems.

[0038] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing embodiments of this application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0039] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 A flowchart illustrating a Bluetooth-based method for synchronizing and displaying navigation information on an LED instrument panel, as provided in an embodiment of this application.

[0041] Figure 2 A flowchart illustrating the corrected steering command and estimated arrival time of the Bluetooth-based LED instrument navigation information synchronization and display method provided in this application embodiment;

[0042] Figure 3 A flowchart illustrating the automatic frequency channel switching method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection, as provided in an embodiment of this application.

[0043] Figure 4 This is a flowchart illustrating the execution data integrity verification process of the Bluetooth-based LED instrument navigation information synchronization and display method provided in this application embodiment. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0045] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first" and "second" are used only to distinguish descriptions and should not be construed 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 related data must comply with the relevant laws, regulations, and standards of the relevant countries and regions.

[0046] Please refer to Figure 1 , Figure 1 This is a flowchart illustrating a Bluetooth-based LED instrument navigation information synchronization and display method according to some embodiments of this application. This Bluetooth-based LED instrument navigation information synchronization and display method is used in terminal devices, such as computers and mobile phones. The Bluetooth-based LED instrument navigation information synchronization and display method includes the following steps:

[0047] S101. Generate a structured navigation data set through a navigation application, including path node topology, turning instructions, and estimated arrival time;

[0048] S102: Establishes a multi-channel connection based on the Bluetooth 5.0 protocol, and uses a time-division multiplexing mechanism to split the data set into navigation command frames and geographic information frames and transmit them synchronously.

[0049] S103. After receiving the data, the vehicle terminal performs a data integrity check, restores the vector graphics based on the geographic information frame, and dynamically filters the display content in combination with the real-time vehicle status parameters. The display content includes display size adjustment.

[0050] S104. The navigation information is fused with the road feature layer through a hardware-accelerated rendering engine to generate a drive signal adapted to the LED array display device.

[0051] First, the system accesses the dynamic traffic information database of the traffic management department and the road condition data interface of a third-party map platform in real time through the navigation application. A pre-set traffic congestion algorithm model is used to calculate and optimize the path node topology, simultaneously generating a structured navigation data set containing accurate path node topology, turning instructions, and estimated arrival times. Then, a multi-channel connection is established based on the Bluetooth 5.0 protocol. A frequency detection module monitors the electromagnetic environment in real time. When co-channel interference occurs, adaptive frequency modulation technology automatically switches frequency channels within the protocol-supported frequency band to ensure connection stability. Simultaneously, a time-division multiplexing mechanism is adopted to split the structured data set into navigation instruction frames and geographic information frames. Priority flags are set in the data frame headers, with navigation instruction frames set to high priority and geographic information frames to low priority. This ensures that navigation instruction frames are prioritized when system resources are scarce during synchronous transmission. After receiving data, the vehicle terminal first performs preliminary verification using the CRC cyclic redundancy check algorithm, then performs deep verification of the data content using a hash check algorithm. Integrity verification is completed by generating a hash value and comparing it with the sending end. Next, for the road node coordinate data in the geographic information frame, a preset algorithm (such as the Bézier curve algorithm) is used for interpolation calculation to generate smooth transition curves between adjacent road nodes. Curve control parameters are adjusted to refine the road shape, achieving vector graphics restoration. Simultaneously, combined with real-time vehicle status parameters such as vehicle speed, fuel level, and engine status, when the vehicle speed exceeds a preset threshold, a navigation arrow display size adjustment mechanism is automatically triggered. The display size is increased by increasing the number of pixels or scaling, dynamically filtering the displayed content. 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 basic terrain layer and an auxiliary label layer. Each layer is rendered independently, with the dynamic information layer rendered first, the static information layer and the basic terrain layer cached, and the auxiliary label layer dynamically loaded and rendered according to 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.

[0052] Please refer to Figure 2 , Figure 2 This is a flowchart illustrating the synchronization correction of steering commands and estimated arrival times in a Bluetooth-connected LED instrument navigation information synchronization and display method according to some embodiments of this application. According to embodiments of the present invention, when the navigation application generates a structured navigation data set, it further includes:

[0053] S201, Real-time access to the dynamic traffic information database of the traffic management department and the road condition data interface of third-party map platforms;

[0054] S202. The topology of the path nodes is recalculated and optimized through a preset traffic congestion algorithm model, and the turning instructions and estimated arrival times are corrected simultaneously.

[0055] The navigation application connects in real-time to the dynamic traffic information database of the traffic management department and the road condition data interface of a third-party map platform to obtain real-time traffic data, including road congestion status, accident warnings, and temporary traffic control. This data is integrated with basic map data and, based on a pre-set traffic congestion algorithm model, the path node topology is recalculated and optimized. This algorithm model dynamically adjusts the connection relationships and weights between path nodes by analyzing parameters such as road segment speed and historical congestion patterns, eliminating congested road segments and planning alternative routes. During this process, the system simultaneously corrects steering commands to ensure that driving guidance information matches the optimized path; at the same time, it recalculates and corrects the estimated arrival time based on real-time vehicle speed and remaining distance, enabling drivers to obtain more accurate trip information. Finally, a structured navigation data set is generated, containing the optimized path node topology, updated steering commands, and corrected estimated arrival times, providing a reliable data foundation for the subsequent transmission and display of navigation information.

[0056] Please refer to Figure 3 , Figure 3 This is a flowchart illustrating the automatic frequency channel switching process in a Bluetooth-based LED instrument navigation information synchronization and display method according to some embodiments of this application. According to an embodiment of the present invention, when establishing a multi-channel connection based on the Bluetooth 5.0 protocol, it further includes:

[0057] S301. Set a frequency detection module to monitor the signal frequency distribution of the surrounding electromagnetic environment in real time.

[0058] S302. When co-channel interference is detected, the frequency channel is automatically switched within the frequency band supported by the Bluetooth 5.0 protocol according to the preset frequency modulation strategy based on the characteristics of the interference frequency and adaptive frequency modulation technology.

[0059] In establishing multi-channel connections based on the Bluetooth 5.0 protocol, this invention ensures the stability and reliability of data transmission through dynamic monitoring and intelligent frequency modulation mechanisms. Specifically, the system includes 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 the strength of co-channel signals and frequency band occupancy. When co-channel interference with the Bluetooth operating frequency band is detected, the system activates adaptive frequency modulation technology. Based on the characteristic parameters of the interference frequency (such as center frequency, bandwidth, and modulation method), within the 2.4GHz frequency band supported by the Bluetooth 5.0 protocol, it automatically switches frequency channels according to a preset frequency modulation strategy. This strategy prioritizes backup channels with low interference strength and high signal quality, achieving dynamic migration of data transmission channels by adjusting the carrier frequency of the Bluetooth signal. During this process, the system maintains synchronous handshakes with the communication peer to ensure uninterrupted and unlost data transmission during channel switching, thereby effectively avoiding the impact of co-channel interference on the stability of the Bluetooth connection and providing a stable communication link foundation for the reliable transmission of navigation command frames and geographic information frames.

[0060] According to an embodiment of the present invention, when using a time-division multiplexing mechanism to split the data set into navigation instruction frames and geographic information frames and transmit them synchronously, the method further includes:

[0061] Set a priority flag in the header of the data frame, with navigation instruction frames set to high priority and geographic information frames set to low priority;

[0062] During data transmission, when system resources are scarce, navigation command frames are prioritized for transmission.

[0063] In this invention, during the time-division multiplexing mechanism to split the data set into navigation command frames and geographic information frames for synchronous transmission, priority is ensured through the setting of priority identifiers and dynamic scheduling strategies to guarantee the priority transmission of critical navigation information. Specifically, the system sets a priority identifier in the data frame header, marking navigation command 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 labels as low priority. During data transmission, when system resources are strained (e.g., decreased Bluetooth channel bandwidth or insufficient processing power of the vehicle terminal), the scheduler monitors the resource status in real time and activates the priority scheduling mechanism, dynamically adjusting the time slice allocation strategy to ensure the complete and timely transmission of high-priority navigation command frames. During this process, the transmission of geographic information frames may be temporarily delayed or use a degraded transmission mode (e.g., reduced sampling rate or compressed data volume), but the system ensures their integrity through a caching mechanism, and transmission continues after resources are restored. By employing this priority-based time-sharing multiplexing strategy, the system can still ensure the priority display of navigation instructions that are crucial to driving decisions in resource-constrained scenarios, while also taking into account the auxiliary role of geographic information, thus achieving a balanced optimization of data transmission efficiency and user experience.

[0064] Please refer to Figure 4 , Figure 4 This is a flowchart illustrating the data integrity verification process in some embodiments of the Bluetooth-based LED instrument navigation information synchronization and display method described in this application. According to an embodiment of the present invention, the vehicle-mounted terminal performs data integrity verification after receiving data, specifically as follows:

[0065] S401. First, the CRC cyclic redundancy check algorithm is used to perform preliminary verification on the data;

[0066] S402. Based on this, a hash verification algorithm is used to perform in-depth verification of the data content;

[0067] S403. Generate a hash value for the data and compare it with the hash value of the sender.

[0068] The system employs a CRC (Cyclic Redundancy Check) algorithm for preliminary verification of received data. This algorithm generates a checksum by performing polynomial calculations on the data frame content and compares it with the CRC value appended to the end of the frame by the sender. If the comparison results are inconsistent, it indicates a bit error occurred during data transmission, and the system immediately triggers a retransmission mechanism. Building upon this, the system further utilizes a hash verification algorithm for deep verification of the data content. By executing cryptographic hash functions such as SHA-256 on the complete data content, a fixed-length hash value is generated and compared with a hash value pre-generated by the sender and transmitted with the data. Due to the collision resistance of hash functions, even a change in only one bit in the data will 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: CRC verification quickly detects random errors during transmission, while hash verification prevents the risk of data tampering or malicious attacks. Through this layered verification strategy, the system can ensure verification efficiency while strictly guaranteeing data integrity, providing a reliable data foundation for the accurate display of subsequent navigation information.

[0069] According to an embodiment of the present invention, the step of restoring vector graphics based on geographic information frames further includes:

[0070] For the road node coordinate data contained in the geographic information frame, a preset algorithm is used to perform interpolation calculation to generate a smooth transition curve between adjacent road nodes, and the road shape is refined by adjusting the control parameters of the smooth transition curve.

[0071] In the process of reconstructing vector graphics from geographic information frames, this invention employs interpolation calculations and parametric curve control techniques to achieve refined processing of road shapes. Specifically, the system first parses the discrete road node coordinate data contained in the geographic information frames; these coordinate points constitute the basic skeleton structure of the road. For linear connections between adjacent nodes, the system uses a preset Bézier curve algorithm for interpolation calculations, generating smooth transition curves by introducing control point parameters, making the road shape more consistent with actual terrain features. Based on this, the system further refines the road shape by adjusting curve control parameters: for curved areas, the curve curvature parameter is increased to generate a more natural turning arc; for straight areas, parameter fluctuations are reduced to maintain the straightness of the road. Simultaneously, the system dynamically adjusts the curve fitting accuracy according to the road grade, using higher-precision fitting parameters for main roads such as highways, and appropriately reducing computational complexity for secondary roads. Through this parametric curve control technique, the system effectively reduces data transmission volume while ensuring the accuracy of graphic reconstruction, requiring only the transmission of key node coordinates and control parameters, rather than complete road contour data. The final generated vector graphics data, after hardware-accelerated rendering, presents a smooth and accurate road shape on the LED dashboard, significantly improving the visual effect of the navigation display and the user experience.

[0072] According to an embodiment of the present invention, the dynamic filtering of display content based on real-time vehicle status parameters specifically includes:

[0073] Real-time vehicle status parameters include vehicle speed, fuel level, and engine status;

[0074] The system has a preset vehicle speed threshold parameter. When the vehicle speed exceeds the preset threshold, the navigation arrow display size adjustment mechanism is automatically triggered, which increases the display size of the navigation arrow by increasing the number of pixels or the scaling ratio.

[0075] The system collects vehicle dynamic parameters in real time, including vehicle speed, fuel level, and engine status, and pre-sets a vehicle speed threshold parameter (e.g., 80 km / h) in its memory. When the vehicle speed sensor detects that the vehicle speed exceeds this threshold, the system automatically triggers a navigation arrow display size adjustment mechanism. This mechanism increases the display size of the navigation arrows through two techniques: for bitmap format navigation arrows, the system increases the number of pixels to ensure that the arrow edges remain clear; for vector format navigation arrows, it adjusts the scaling ratio to achieve smooth enlargement. The core advantage of this dynamic adjustment mechanism is that when the vehicle is traveling at high speed, increasing the display size of key navigation elements effectively improves the driver's visual perception efficiency and reduces information acquisition delays caused by eye shifts or visual fatigue. Simultaneously, the system continuously monitors vehicle speed changes, and when the speed drops below the threshold, it automatically restores the default display size of the navigation arrows, preventing excessively large display elements from occupying too much screen space and affecting the readability of other driving information. Through this adaptive display strategy based on vehicle speed thresholds, the system can provide optimal information presentation in different driving scenarios, significantly improving the safety and ease of use of the navigation system.

[0076] According to an embodiment of the present invention, when the navigation information is fused with the road feature layer using a hardware-accelerated rendering engine, the specific steps are as follows:

[0077] A layered rendering architecture is adopted, dividing navigation information into dynamic information layer and static information layer, and road feature layer into basic terrain layer and auxiliary signage layer;

[0078] The dynamic information layer includes real-time navigation arrows, and the static information layer includes road name labels;

[0079] Each layer is rendered independently, with dynamic information layers rendered first, static information layers and basic terrain layers rendered in a cache, and auxiliary identifier layers dynamically loaded and rendered based on the current display area.

[0080] In the process of fusing navigation information with the road feature layer through a hardware-accelerated rendering engine, this invention employs a layered rendering architecture to achieve efficient and accurate graphics display. Specifically, the system divides the rendering object into four layers: navigation information is split into a dynamic information layer and a static information layer. The dynamic information layer contains key information such as real-time updated navigation arrows and path guidance, 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 signage layer. The former carries basic geographic data such as road outlines and topography, while the latter covers auxiliary navigation elements such as traffic signs and Points of Interest (POIs). Each layer employs a differentiated rendering strategy: The dynamic information layer, due to its extremely high real-time requirements, prioritizes real-time rendering using a hardware-accelerated rendering engine to ensure timely and smooth presentation of dynamic changes in navigation arrows (such as turn prompts); the static information layer and basic terrain layer, with their low content update frequency, utilize a caching rendering mechanism, storing the results in video memory after the initial rendering and only performing partial refreshes when the map area changes or data is updated, thus significantly reducing rendering computation; the auxiliary signage layer is dynamically loaded and rendered based on the current display area. The system uses the vehicle terminal's positioning information to load only traffic signs, POIs, and other data within the screen's visible range, avoiding redundant rendering. Through this layered rendering architecture, the system effectively improves rendering efficiency and reduces hardware resource consumption while ensuring the real-time nature of navigation information, ultimately generating high-quality drive signals adapted to LED array display devices, providing drivers with a clear and smooth navigation display interface.

[0081] According to an embodiment of the present invention, when fusing navigation information with the road feature layer through a hardware-accelerated rendering engine, the method further includes:

[0082] 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;

[0083] An augmented reality navigation instruction layer is generated based on the perceived data, and navigation arrows, distance prompts and other information are spatially aligned with actual road elements;

[0084] Using the zoned display technology of the LED instrument panel, augmented reality navigation instructions are overlaid and displayed on the corresponding locations of the real road scene.

[0085] The system acquires real-time perception data from the vehicle's Advanced Driver Assistance Systems (ADAS), including distances to obstacles ahead, lane line recognition results, and traffic sign recognition information, and generates an augmented reality navigation guidance layer based on this data. Specifically, the system uses a spatial mapping algorithm to align virtual navigation arrows, distance prompts, and other information with actual road elements in three-dimensional space; for example, it precisely overlays turn arrows onto the corresponding positions of physical lane lines. Using the LED instrument panel's zoned display technology, the system fuses the augmented reality navigation guidance layer with the four basic layers mentioned above, ultimately creating a combined virtual and real display effect in specific areas of the LED screen. For example, when the ADAS system detects an intersection ahead, the augmented reality layer overlays a magnified turn arrow at the intersection location in the real-world image, dynamically adjusting the arrow size and transparency based on the real-time distance between the vehicle and the intersection. This combination of layered rendering and augmented reality technology not only maintains the efficient display of traditional navigation information but also provides drivers with more intuitive and accurate navigation guidance through virtual-real fusion, significantly improving driving safety and user experience in complex road conditions.

[0086] According to an embodiment of the present invention, when dynamically filtering the displayed content based on real-time vehicle status parameters, the method further includes:

[0087] Establish a vehicle-to-everything (V2X) communication module to receive real-time driving status data and traffic incident early warning information sent by surrounding vehicles;

[0088] Based on the V2X data, a dynamic risk assessment model is generated to calculate the risk coefficient of the vehicle's current driving path;

[0089] 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 provide a warning.

[0090] The system establishes a vehicle-to-everything (V2X) communication module, which receives real-time driving status data (such as vehicle speed, acceleration, and braking status) and traffic event warning information (such as accidents and road construction) from surrounding vehicles via dedicated short-range communication or cellular vehicle-to-everything (C-V2X) technology. 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 location, driving direction, and the distribution density of surrounding vehicles, to calculate the risk coefficient of the current driving path in real time. For example, when it receives information that a vehicle is braking suddenly 500 meters ahead, the model will comprehensively consider factors such as the vehicle's speed, braking distance, and the following distance of vehicles behind, dynamically increasing the risk value of that road segment. When the risk factor exceeds a preset threshold (e.g., 0.7), the system automatically triggers a two-level response mechanism: at the data transmission level, by adjusting the priority flag in the Bluetooth communication protocol, the transmission priority of navigation command frames is further elevated from high priority to the highest priority, ensuring that critical information such as emergency steering and hazard avoidance warnings are transmitted first; at the display level, the system uses color gradient technology on the LED instrument panel to provide a visual warning of the risk, gradually switching the navigation path that was originally displayed as green to orange (medium risk) or red (high risk), while increasing the flashing frequency of the navigation arrow. This color gradient is achieved using a linear interpolation algorithm in the HSV color space, ensuring that the color transition is natural and conforms to the characteristics of 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), with the entire process lasting 2 seconds, giving the driver a clear perception of the change in risk level.

[0091] This invention also discloses a Bluetooth-connected LED instrument navigation information synchronization and display system, including a memory and a processor. The memory includes a Bluetooth-connected LED instrument navigation information synchronization and display method program. When the processor executes the Bluetooth-connected LED instrument navigation information synchronization and display method program, it performs the following steps:

[0092] The navigation application generates a structured navigation data set, which includes path node topology, turning instructions, and estimated arrival time.

[0093] A multi-channel connection is established based on the Bluetooth 5.0 protocol, and a time-division multiplexing mechanism is used to split the data set into navigation command frames and geographic information frames and transmit them synchronously.

[0094] After receiving data, the vehicle terminal performs data integrity verification, restores vector graphics based on the geographic information frame, and dynamically filters the display content in combination with the real-time vehicle status parameters. The display content includes display size adjustment.

[0095] The hardware-accelerated rendering engine fuses navigation information with road feature layers to generate drive signals adapted to LED array display devices.

[0096] First, the system accesses the dynamic traffic information database of the traffic management department and the road condition data interface of a third-party map platform in real time through the navigation application. A pre-set traffic congestion algorithm model is used to calculate and optimize the path node topology, simultaneously generating a structured navigation data set containing accurate path node topology, turning instructions, and estimated arrival times. Then, a multi-channel connection is established based on the Bluetooth 5.0 protocol. A frequency detection module monitors the electromagnetic environment in real time. When co-channel interference occurs, adaptive frequency modulation technology automatically switches frequency channels within the protocol-supported frequency band to ensure connection stability. Simultaneously, a time-division multiplexing mechanism is adopted to split the structured data set into navigation instruction frames and geographic information frames. Priority flags are set in the data frame headers, with navigation instruction frames set to high priority and geographic information frames to low priority. This ensures that navigation instruction frames are prioritized when system resources are scarce during synchronous transmission. After receiving data, the vehicle terminal first performs preliminary verification using the CRC cyclic redundancy check algorithm, then performs deep verification of the data content using a hash check algorithm. Integrity verification is completed by generating a hash value and comparing it with the sending end. Next, for the road node coordinate data in the geographic information frame, a preset algorithm (such as the Bézier curve algorithm) is used for interpolation calculation to generate smooth transition curves between adjacent road nodes. Curve control parameters are adjusted to refine the road shape, achieving vector graphics restoration. Simultaneously, combined with real-time vehicle status parameters such as vehicle speed, fuel level, and engine status, when the vehicle speed exceeds a preset threshold, a navigation arrow display size adjustment mechanism is automatically triggered. The display size is increased by increasing the number of pixels or scaling, dynamically filtering the displayed content. 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 basic terrain layer and an auxiliary label layer. Each layer is rendered independently, with the dynamic information layer rendered first, the static information layer and the basic terrain layer cached, and the auxiliary label layer dynamically loaded and rendered according to 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.

[0097] According to an embodiment of the present invention, when the navigation application generates a structured navigation data set, it further includes:

[0098] It provides real-time access to the dynamic traffic information database of the traffic management department and the road condition data interface of third-party map platforms;

[0099] The path node topology is recalculated and optimized using a pre-set traffic congestion algorithm model, and turning instructions and estimated arrival times are corrected simultaneously.

[0100] The navigation application connects in real-time to the dynamic traffic information database of the traffic management department and the road condition data interface of a third-party map platform to obtain real-time traffic data, including road congestion status, accident warnings, and temporary traffic control. This data is integrated with basic map data and, based on a pre-set traffic congestion algorithm model, the path node topology is recalculated and optimized. This algorithm model dynamically adjusts the connection relationships and weights between path nodes by analyzing parameters such as road segment speed and historical congestion patterns, eliminating congested road segments and planning alternative routes. During this process, the system simultaneously corrects steering commands to ensure that driving guidance information matches the optimized path; at the same time, it recalculates and corrects the estimated arrival time based on real-time vehicle speed and remaining distance, enabling drivers to obtain more accurate trip information. Finally, a structured navigation data set is generated, containing the optimized path node topology, updated steering commands, and corrected estimated arrival times, providing a reliable data foundation for the subsequent transmission and display of navigation information.

[0101] 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:

[0102] A frequency detection module is set up to monitor the signal frequency distribution of the surrounding electromagnetic environment in real time.

[0103] When co-channel interference is detected, the frequency channel is automatically switched within the frequency band supported by the Bluetooth 5.0 protocol according to the preset frequency modulation strategy based on the characteristics of the interference frequency and adaptive frequency modulation technology.

[0104] In establishing multi-channel connections based on the Bluetooth 5.0 protocol, this invention ensures the stability and reliability of data transmission through dynamic monitoring and intelligent frequency modulation mechanisms. Specifically, the system includes 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 the strength of co-channel signals and frequency band occupancy. When co-channel interference with the Bluetooth operating frequency band is detected, the system activates adaptive frequency modulation technology. Based on the characteristic parameters of the interference frequency (such as center frequency, bandwidth, and modulation method), within the 2.4GHz frequency band supported by the Bluetooth 5.0 protocol, it automatically switches frequency channels according to a preset frequency modulation strategy. This strategy prioritizes backup channels with low interference strength and high signal quality, achieving dynamic migration of data transmission channels by adjusting the carrier frequency of the Bluetooth signal. During this process, the system maintains synchronous handshakes with the communication peer to ensure uninterrupted and unlost data transmission during channel switching, thereby effectively avoiding the impact of co-channel interference on the stability of the Bluetooth connection and providing a stable communication link foundation for the reliable transmission of navigation command frames and geographic information frames.

[0105] According to an embodiment of the present invention, when using a time-division multiplexing mechanism to split the data set into navigation instruction frames and geographic information frames and transmit them synchronously, the method further includes:

[0106] Set a priority flag in the header of the data frame, with navigation instruction frames set to high priority and geographic information frames set to low priority;

[0107] During data transmission, when system resources are scarce, navigation command frames are prioritized for transmission.

[0108] In this invention, during the time-division multiplexing mechanism to split the data set into navigation command frames and geographic information frames for synchronous transmission, priority is ensured through the setting of priority identifiers and dynamic scheduling strategies to guarantee the priority transmission of critical navigation information. Specifically, the system sets a priority identifier in the data frame header, marking navigation command 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 labels as low priority. During data transmission, when system resources are strained (e.g., decreased Bluetooth channel bandwidth or insufficient processing power of the vehicle terminal), the scheduler monitors the resource status in real time and activates the priority scheduling mechanism, dynamically adjusting the time slice allocation strategy to ensure the complete and timely transmission of high-priority navigation command frames. During this process, the transmission of geographic information frames may be temporarily delayed or use a degraded transmission mode (e.g., reduced sampling rate or compressed data volume), but the system ensures their integrity through a caching mechanism, and transmission continues after resources are restored. By employing this priority-based time-sharing multiplexing strategy, the system can still ensure the priority display of navigation instructions that are crucial to driving decisions in resource-constrained scenarios, while also taking into account the auxiliary role of geographic information, thus achieving a balanced optimization of data transmission efficiency and user experience.

[0109] According to an embodiment of the present invention, the vehicle-mounted terminal performs data integrity verification after receiving data, specifically as follows:

[0110] First, the CRC cyclic redundancy check algorithm is used to perform preliminary verification of the data;

[0111] Based on this, a hash verification algorithm is used to perform in-depth verification of the data content;

[0112] The hash value of the generated data is compared with the hash value of the sender.

[0113] The system employs a CRC (Cyclic Redundancy Check) algorithm for preliminary verification of received data. This algorithm generates a checksum by performing polynomial calculations on the data frame content and compares it with the CRC value appended to the end of the frame by the sender. If the comparison results are inconsistent, it indicates a bit error occurred during data transmission, and the system immediately triggers a retransmission mechanism. Building upon this, the system further utilizes a hash verification algorithm for deep verification of the data content. By executing cryptographic hash functions such as SHA-256 on the complete data content, a fixed-length hash value is generated and compared with a hash value pre-generated by the sender and transmitted with the data. Due to the collision resistance of hash functions, even a change in only one bit in the data will 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: CRC verification quickly detects random errors during transmission, while hash verification prevents the risk of data tampering or malicious attacks. Through this layered verification strategy, the system can ensure verification efficiency while strictly guaranteeing data integrity, providing a reliable data foundation for the accurate display of subsequent navigation information.

[0114] According to an embodiment of the present invention, the step of restoring vector graphics based on geographic information frames further includes:

[0115] For the road node coordinate data contained in the geographic information frame, a preset algorithm is used to perform interpolation calculation to generate a smooth transition curve between adjacent road nodes, and the road shape is refined by adjusting the control parameters of the smooth transition curve.

[0116] In the process of reconstructing vector graphics from geographic information frames, this invention employs interpolation calculations and parametric curve control techniques to achieve refined processing of road shapes. Specifically, the system first parses the discrete road node coordinate data contained in the geographic information frames; these coordinate points constitute the basic skeleton structure of the road. For linear connections between adjacent nodes, the system uses a preset Bézier curve algorithm for interpolation calculations, generating smooth transition curves by introducing control point parameters, making the road shape more consistent with actual terrain features. Based on this, the system further refines the road shape by adjusting curve control parameters: for curved areas, the curve curvature parameter is increased to generate a more natural turning arc; for straight areas, parameter fluctuations are reduced to maintain the straightness of the road. Simultaneously, the system dynamically adjusts the curve fitting accuracy according to the road grade, using higher-precision fitting parameters for main roads such as highways, and appropriately reducing computational complexity for secondary roads. Through this parametric curve control technique, the system effectively reduces data transmission volume while ensuring the accuracy of graphic reconstruction, requiring only the transmission of key node coordinates and control parameters, rather than complete road contour data. The final generated vector graphics data, after hardware-accelerated rendering, presents a smooth and accurate road shape on the LED dashboard, significantly improving the visual effect of the navigation display and the user experience.

[0117] According to an embodiment of the present invention, the dynamic filtering of display content based on real-time vehicle status parameters specifically includes:

[0118] Real-time vehicle status parameters include vehicle speed, fuel level, and engine status;

[0119] The system has a preset vehicle speed threshold parameter. When the vehicle speed exceeds the preset threshold, the navigation arrow display size adjustment mechanism is automatically triggered, which increases the display size of the navigation arrow by increasing the number of pixels or the scaling ratio.

[0120] The system collects vehicle dynamic parameters in real time, including vehicle speed, fuel level, and engine status, and pre-sets a vehicle speed threshold parameter (e.g., 80 km / h) in its memory. When the vehicle speed sensor detects that the vehicle speed exceeds this threshold, the system automatically triggers a navigation arrow display size adjustment mechanism. This mechanism increases the display size of the navigation arrows through two techniques: for bitmap format navigation arrows, the system increases the number of pixels to ensure that the arrow edges remain clear; for vector format navigation arrows, it adjusts the scaling ratio to achieve smooth enlargement. The core advantage of this dynamic adjustment mechanism is that when the vehicle is traveling at high speed, increasing the display size of key navigation elements effectively improves the driver's visual perception efficiency and reduces information acquisition delays caused by eye shifts or visual fatigue. Simultaneously, the system continuously monitors vehicle speed changes, and when the speed drops below the threshold, it automatically restores the default display size of the navigation arrows, preventing excessively large display elements from occupying too much screen space and affecting the readability of other driving information. Through this adaptive display strategy based on vehicle speed thresholds, the system can provide optimal information presentation in different driving scenarios, significantly improving the safety and ease of use of the navigation system.

[0121] According to an embodiment of the present invention, when the navigation information is fused with the road feature layer using a hardware-accelerated rendering engine, the specific steps are as follows:

[0122] A layered rendering architecture is adopted, dividing navigation information into dynamic information layer and static information layer, and road feature layer into basic terrain layer and auxiliary signage layer;

[0123] The dynamic information layer includes real-time navigation arrows, and the static information layer includes road name labels;

[0124] Each layer is rendered independently, with dynamic information layers rendered first, static information layers and basic terrain layers rendered in a cache, and auxiliary identifier layers dynamically loaded and rendered based on the current display area.

[0125] In the process of fusing navigation information with the road feature layer through a hardware-accelerated rendering engine, this invention employs a layered rendering architecture to achieve efficient and accurate graphics display. Specifically, the system divides the rendering object into four layers: navigation information is split into a dynamic information layer and a static information layer. The dynamic information layer contains key information such as real-time updated navigation arrows and path guidance, 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 signage layer. The former carries basic geographic data such as road outlines and topography, while the latter covers auxiliary navigation elements such as traffic signs and Points of Interest (POIs). Each layer employs a differentiated rendering strategy: The dynamic information layer, due to its extremely high real-time requirements, prioritizes real-time rendering using a hardware-accelerated rendering engine to ensure timely and smooth presentation of dynamic changes in navigation arrows (such as turn prompts); the static information layer and basic terrain layer, with their low content update frequency, utilize a caching rendering mechanism, storing the results in video memory after the initial rendering and only performing partial refreshes when the map area changes or data is updated, thus significantly reducing rendering computation; the auxiliary signage layer is dynamically loaded and rendered based on the current display area. The system uses the vehicle terminal's positioning information to load only traffic signs, POIs, and other data within the screen's visible range, avoiding redundant rendering. Through this layered rendering architecture, the system effectively improves rendering efficiency and reduces hardware resource consumption while ensuring the real-time nature of navigation information, ultimately generating high-quality drive signals adapted to LED array display devices, providing drivers with a clear and smooth navigation display interface.

[0126] According to an embodiment of the present invention, when fusing navigation information with the road feature layer through a hardware-accelerated rendering engine, the method further includes:

[0127] 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;

[0128] An augmented reality navigation instruction layer is generated based on the perceived data, and navigation arrows, distance prompts and other information are spatially aligned with actual road elements;

[0129] Using the zoned display technology of the LED instrument panel, augmented reality navigation instructions are overlaid and displayed on the corresponding locations of the real road scene.

[0130] The system acquires real-time perception data from the vehicle's Advanced Driver Assistance Systems (ADAS), including distances to obstacles ahead, lane line recognition results, and traffic sign recognition information, and generates an augmented reality navigation guidance layer based on this data. Specifically, the system uses a spatial mapping algorithm to align virtual navigation arrows, distance prompts, and other information with actual road elements in three-dimensional space; for example, it precisely overlays turn arrows onto the corresponding positions of physical lane lines. Using the LED instrument panel's zoned display technology, the system fuses the augmented reality navigation guidance layer with the four basic layers mentioned above, ultimately creating a combined virtual and real display effect in specific areas of the LED screen. For example, when the ADAS system detects an intersection ahead, the augmented reality layer overlays a magnified turn arrow at the intersection location in the real-world image, dynamically adjusting the arrow size and transparency based on the real-time distance between the vehicle and the intersection. This combination of layered rendering and augmented reality technology not only maintains the efficient display of traditional navigation information but also provides drivers with more intuitive and accurate navigation guidance through virtual-real fusion, significantly improving driving safety and user experience in complex road conditions.

[0131] According to an embodiment of the present invention, when dynamically filtering the displayed content based on real-time vehicle status parameters, the method further includes:

[0132] Establish a vehicle-to-everything (V2X) communication module to receive real-time driving status data and traffic incident early warning information sent by surrounding vehicles;

[0133] Based on the V2X data, a dynamic risk assessment model is generated to calculate the risk coefficient of the vehicle's current driving path;

[0134] 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 provide a warning.

[0135] The system establishes a vehicle-to-everything (V2X) communication module, which receives real-time driving status data (such as vehicle speed, acceleration, and braking status) and traffic event warning information (such as accidents and road construction) from surrounding vehicles via dedicated short-range communication or cellular vehicle-to-everything (C-V2X) technology. 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 location, driving direction, and the distribution density of surrounding vehicles, to calculate the risk coefficient of the current driving path in real time. For example, when it receives information that a vehicle is braking suddenly 500 meters ahead, the model will comprehensively consider factors such as the vehicle's speed, braking distance, and the following distance of vehicles behind, dynamically increasing the risk value of that road segment. When the risk factor exceeds a preset threshold (e.g., 0.7), the system automatically triggers a two-level response mechanism: at the data transmission level, by adjusting the priority flag in the Bluetooth communication protocol, the transmission priority of navigation command frames is further elevated from high priority to the highest priority, ensuring that critical information such as emergency steering and hazard avoidance warnings are transmitted first; at the display level, the system uses color gradient technology on the LED instrument panel to provide a visual warning of the risk, gradually switching the navigation path that was originally displayed as green to orange (medium risk) or red (high risk), while increasing the flashing frequency of the navigation arrow. This color gradient is achieved using a linear interpolation algorithm in the HSV color space, ensuring that the color transition is natural and conforms to the characteristics of 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), with the entire process lasting 2 seconds, giving the driver a clear perception of the change in risk level.

[0136] A third aspect of the present invention provides a computer-readable storage medium including a Bluetooth-connected LED instrument navigation information synchronization and display method program. When the Bluetooth-connected LED instrument navigation information synchronization and display method program is executed by a processor, it implements the steps of the Bluetooth-connected LED instrument navigation information synchronization and display method as described in any of the preceding claims.

[0137] This invention discloses a method, system, and medium for synchronizing and displaying navigation information on LED dashboards based on Bluetooth interconnection. Through multi-dimensional technological innovation, it achieves accurate and efficient presentation of navigation information. First, the navigation application accesses the dynamic traffic information database of the traffic management department and the road condition data interface of a third-party map platform in real time. Using a preset traffic congestion algorithm model, it optimizes the path node topology based on parameters such as road segment speed and historical congestion patterns, simultaneously correcting turning instructions and estimated arrival times to generate a structured navigation data set. During data transmission, a multi-channel connection is established based on the Bluetooth 5.0 protocol. A frequency detection module monitors the electromagnetic environment in real time, and adaptive frequency modulation technology avoids co-channel interference. A time-division multiplexing mechanism is used to split the data into navigation instruction frames and geographic information frames, with a priority flag bit set in the data frame header to ensure that navigation instruction frames are transmitted first when system resources are limited. In the data verification stage, a dual verification is performed using a CRC cyclic redundancy check algorithm and a hash check algorithm. The former quickly detects transmission errors, while the latter prevents data tampering. Secondly, for the road node coordinate data in the geographic information frame, the Bezier curve algorithm is used for interpolation calculation and shape refinement to achieve vector graphics restoration. Combined with real-time vehicle status parameters such as vehicle speed, fuel level, and engine status, the navigation arrow display size is automatically adjusted when the vehicle speed exceeds a preset threshold. Simultaneously, a V2X communication module is established to receive surrounding vehicle driving status and traffic event warning information. A dynamic risk assessment model is constructed based on a Bayesian network algorithm. When the risk coefficient exceeds a threshold, the transmission priority of the navigation command frame is increased, and risk warnings are displayed through LED instrument panel color gradient technology. During the rendering process, a layered rendering architecture is adopted, dividing the navigation information into dynamic and static information layers, and the road feature layer into basic terrain and auxiliary signage layers. The dynamic information layer is rendered first, while the static information layer and basic terrain layer are cached and rendered, and the auxiliary signage layer is loaded on demand. Real-time acquisition of vehicle ADAS system perception data is used to generate an augmented reality navigation instruction layer. Through spatial mapping algorithms and LED instrument panel partitioning display technology, the virtual navigation information is accurately overlaid with the real road scene, ultimately generating a drive signal adapted to the LED array display device, providing the driver with a real-time, safe, and intuitive navigation display experience.

[0138] 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 illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple units or components can be combined, or integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the various components shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be electrical, mechanical, or other forms.

[0139] The units described above as separate components may or may not be physically separate. The components shown 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 to achieve the purpose of this embodiment according to actual needs.

[0140] In addition, in the various embodiments of the present invention, each functional unit can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0141] Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium includes various media that can store program code, such as mobile storage devices, read-only memory, random access memory, magnetic disks, or optical disks.

[0142] Alternatively, if the integrated units of this invention are implemented as software functional modules and sold or used as independent products, they can also be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of this invention, or the parts that contribute to the prior art, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, ROM, RAM, magnetic disks, or optical disks.

Claims

1. A method for synchronizing and displaying navigation information on LED instruments based on Bluetooth interconnection, characterized in that, Includes the following steps: The navigation application generates a structured navigation data set, which includes path node topology, turning instructions, and estimated arrival time. A multi-channel connection is established based on the Bluetooth 5.0 protocol, and a time-division multiplexing mechanism is used to split the data set into navigation command frames and geographic information frames and transmit them synchronously. After receiving data, the vehicle terminal performs data integrity verification, restores vector graphics based on the geographic information frame, and dynamically filters the display content in combination with the real-time vehicle status parameters. The display content includes display size adjustment. The hardware-accelerated rendering engine fuses navigation information with road feature layers to generate drive signals adapted to LED array display devices.

2. The method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection according to claim 1, characterized in that, When the navigation application generates a structured navigation data set, it also includes: It provides real-time access to the dynamic traffic information database of the traffic management department and the road condition data interface of third-party map platforms; The path node topology is recalculated and optimized using a pre-set traffic congestion algorithm model, and turning instructions and estimated arrival times are corrected simultaneously.

3. The method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection according to claim 1, characterized in that, When establishing a multi-channel connection based on the Bluetooth 5.0 protocol, it also includes: A frequency detection module is set up 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 within the frequency band supported by the Bluetooth 5.0 protocol according to the preset frequency modulation strategy based on the characteristics of the interference frequency and adaptive frequency modulation technology.

4. The method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection according to claim 1, characterized in that, When using a time-division multiplexing mechanism 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 header of the data frame, with navigation instruction frames set to high priority and geographic information frames set to low priority; During data transmission, when system resources are scarce, navigation command frames are prioritized for transmission.

5. The method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection according to claim 1, characterized in that, After receiving the data, the vehicle-mounted terminal performs a data integrity check, specifically: First, the CRC cyclic redundancy check algorithm is used to perform preliminary verification of the data; Based on this, a hash verification algorithm is used to perform in-depth verification of the data content; The hash value of the received data is compared with the hash value of the sent data.

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

7. The method for synchronizing and displaying LED instrument navigation information based on Bluetooth interconnection according to claim 1, characterized in that, The dynamic filtering and display of content based on real-time vehicle status parameters specifically includes: Real-time vehicle status parameters include vehicle speed, fuel level, and engine status; The system has a preset vehicle speed threshold parameter. When the vehicle speed exceeds the preset threshold, the navigation arrow display size adjustment mechanism is automatically triggered, which increases the display size of the navigation arrow by increasing the number of pixels or the scaling 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 fused with the road feature layer using a hardware-accelerated rendering engine, the specific steps are as follows: A layered rendering architecture is adopted, dividing navigation information into dynamic information layer and static information layer, and road feature layer into basic terrain layer and auxiliary signage 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 dynamic information layers rendered first, static information layers and basic terrain layers rendered in a cache, and auxiliary identifier layers dynamically loaded and rendered based on the current display area.

9. A Bluetooth-based LED instrument navigation information synchronization and display system, characterized in that, The system includes a memory and a processor. The memory contains a Bluetooth-connected LED instrument navigation information synchronization and display method program. When the processor executes the Bluetooth-connected LED instrument navigation information synchronization and display method program, it performs the following steps: The navigation application generates a structured navigation data set, which includes path node topology, turning instructions, and estimated arrival time. A multi-channel connection is established based on the Bluetooth 5.0 protocol, and a time-division multiplexing mechanism is used 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, restores the vector graphics based on the geographic information frame, and dynamically filters the displayed content in combination with the vehicle's real-time status parameters. The hardware-accelerated rendering engine fuses navigation information with road feature layers to generate drive signals adapted to LED array display devices.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a Bluetooth-connected LED instrument navigation information synchronization and display method program. When the Bluetooth-connected LED instrument navigation information synchronization and display method program is executed by a processor, it implements the steps of the Bluetooth-connected LED instrument navigation information synchronization and display method as described in any one of claims 1 to 8.

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