A vehicle door opening multi-dimensional safety prompting method based on intelligent vehicle lights

Abstract

The application discloses a vehicle door opening multi-dimensional safety prompting method based on an intelligent vehicle lamp, relates to the field of vehicle active safety, and comprises the following steps: acquiring a current gear signal of a vehicle, a safety belt state and obstacle motion parameters, and generating a collision risk alarm signal; performing concurrent logic judgment on the signals, and generating a multi-channel cooperative execution instruction when preset triggering conditions are met; analyzing a dangerous direction and using an executor addressing routing table to directionally distribute external prompting actions and internal prompting actions; when it is determined that the exit triggering conditions are established, the execution actions are ended in combination with preset shortest execution time lengths and audio playing progress. The external prompting actions involve vehicle side projection, vehicle tail display and vehicle external voice broadcast, and the internal prompting actions involve central control blind-filling images and external rearview mirror light flickering. The application realizes the identification of the door opening risk and the multi-modal synchronous early warning, and improves the coherence of the early warning signal and the reliability in the hardware failure scene.

Description

Technical Field

[0001] This application relates to the field of vehicle active safety, and in particular to a multi-dimensional safety prompt method for vehicle door opening based on intelligent vehicle lights. Background Technology

[0002] The vehicle door opening warning system is an active safety assistance feature in automobiles. Before occupants open the door to get out of the vehicle, the system monitors motor vehicles, non-motor vehicles, and pedestrians approaching from the rear or side, and issues a warning message to the occupants before a collision is imminent, preventing the open door from colliding with external targets and reducing the traffic accident rate.

[0003] Existing door opening warning technology mainly relies on radar sensors installed at the rear or side of the vehicle to detect the external environment behind. When the radar sensor detects a moving target approaching and entering the set danger distance range, the system calculation module outputs a collision risk signal. After receiving the risk signal, the underlying controller drives the dashboard indicator light to flash or the buzzer to sound, outputting a danger status warning to the occupants.

[0004] Current vehicle door opening warning technology lacks cross-validation of the vehicle's current gear position, occupant seatbelt status, and environmental data, leading to false alarms when the vehicle is in motion or when occupants are not yet ready to exit. Furthermore, current warning channels are limited to in-vehicle buzzers and indicator lights, failing to simultaneously transmit door opening hazard information to the outside of the vehicle. The warning content also lacks directional spatial linkage targeting the source of danger, resulting in insufficient perception of collision risks in specific directions by both internal and external environments. Additionally, the output control program does not limit the duration of the warning action, causing frequent interruptions in the audible and visual warning actions when faced with short-term fluctuations in environmental sensor signals or momentary loss of the target, thus disrupting the transmission of warning information.

[0005] Therefore, a multi-dimensional safety prompt method for vehicle door opening based on intelligent vehicle lights is needed. This method introduces concurrent cross-verification of gear position signal, seat belt status, and environmental risk to reduce false alarms in non-exit scenarios. It utilizes addressing routing to achieve directional linkage of in-vehicle and out-of-vehicle interactive hardware to enhance multi-directional information coverage. At the same time, it sets a minimum execution time constraint and a fallback mechanism for execution failure to solve the problems of low accuracy, single warning channel and lack of spatial linkage in existing technologies, and interruption of warning actions caused by sensor signal jumps and damage to underlying components. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-dimensional safety prompt method for vehicle door opening based on intelligent vehicle lights, which solves the problems of false alarms in non-exit scenarios, single prompt channel and lack of directional linkage between inside and outside the vehicle, frequent interruption of the warning action caused by sensor signal jumps, and warning failure caused by underlying interactive hardware failure.

[0007] This invention provides the following solution:

[0008] A method for multi-dimensional safety prompts for vehicle door opening based on intelligent vehicle lights, comprising:

[0009] The system acquires the vehicle's current gear position signal, seatbelt buckle status signal, and obstacle motion parameters, and generates a collision risk alarm signal based on the obstacle motion parameters. It performs concurrent logic judgments on the current gear position signal, seatbelt buckle status signal, and collision risk alarm signal, and generates a multi-channel collaborative execution command when a preset trigger condition is met. It parses the collision risk alarm signal to extract a danger orientation field and obtain the danger orientation status, and executes corresponding external and internal prompting actions based on the danger orientation status and the multi-channel collaborative execution command. During the execution of the external and internal prompting actions, it monitors the data changes of the current gear position signal, seatbelt buckle status signal, and collision risk alarm signal, and terminates the external and internal prompting actions when a preset exit trigger condition is met.

[0010] This technical solution utilizes simultaneous verification of vehicle operating status, occupant disembarkation intentions, and external environmental risks, suppressing signal interference in non-disembarkation scenarios through multi-dimensional concurrent logic. A hardware addressing routing mechanism enables directional distribution of internal and external interaction channels. The coordinated output of ground projection, rear-end display, sound, blind spot imaging, and light effects provides synchronized prompts for both the external physical space and the occupant's perspective. By introducing minimum execution time constraints and audio delay protection, the continuity of actions is ensured under signal fluctuations, and a state feedback mechanism enables closed-loop monitoring of the physical execution layer.

[0011] Preferably, generating a collision risk alarm signal based on the obstacle motion parameters includes: extracting the target object's position coordinates, relative distance, and relative speed from the obstacle motion parameters; calculating the estimated collision time for the target object to reach the maximum outer envelope area of ​​the door opening based on the relative distance and the relative speed; and determining that there is a door opening collision risk and generating the collision risk alarm signal when the estimated collision time is less than a preset safe time threshold, or when the target object's position coordinates enter a preset dangerous distance threshold range.

[0012] Preferably, the concurrent logic judgment of the current gear signal, the seat belt buckle status signal, and the collision risk alarm signal, and the generation of a multi-channel collaborative execution instruction when the preset triggering conditions are met, includes: extracting the timestamps of the arrival of the current gear signal, the seat belt buckle status signal, and the collision risk alarm signal; dividing the data within the same time judgment window into the same calculation cycle for time alignment processing; performing a logical AND operation on the data that has completed the time alignment processing; outputting a comprehensive triggering indicator when and only when the parking status valid bit flag corresponding to the current gear signal indicates parking gear, the occupant exit intention flag flag corresponding to the seat belt buckle status signal indicates that the driver's or passenger's seat belt is unfastened, and the collision risk alarm signal indicates that there is a collision risk to the side or rear of the vehicle; and monitoring that the comprehensive triggering indicator remains valid within the preset time judgment period, determining that the triggering conditions are met and generating the multi-channel collaborative execution instruction.

[0013] Preferably, the targeted execution of external and internal warning actions based on the dangerous location status and the multi-channel collaborative execution command includes: inputting the dangerous location status as an index condition into a pre-established actuator addressing routing table, querying and obtaining the corresponding target hardware network address; generating a targeted distribution command with an addressing identifier based on the target hardware network address and the multi-channel collaborative execution command; controlling the side projection headlight unit on the corresponding side of the vehicle to start projection, controlling the rear display screen unit to output warning content matching the corresponding side, and controlling the external speaker unit to synchronously start executing the external warning action, according to the addressing identifier in the targeted distribution command; and synchronously controlling the central control display unit to output a visual warning interface on the corresponding side screen area, and controlling the corresponding side exterior rearview mirror warning light unit to synchronously start executing the internal warning action.

[0014] Preferably, determining that the preset exit trigger condition is met includes: generating a gear change signal when the current gear signal is detected to switch from parking gear to drive gear, reverse gear, or neutral gear; generating an intent cancellation flag when the level signal of the seat belt buckle status signal returns to its initial constant state, or when the gravity occupancy sensor occupancy signal is cleared; generating an alarm cancellation message when the collision risk alarm signal is detected to be cancelled; performing logical OR operation on the gear change signal, the intent cancellation flag, and the alarm cancellation message, and determining that the exit trigger condition is met when any one of the signals is valid.

[0015] Preferably, ending the external prompt action and the internal prompt action when the preset exit trigger condition is met includes: reading and recording the execution duration data of the external prompt action and the internal prompt action, and obtaining the preset minimum total execution duration; when the execution duration data has not reached the minimum total execution duration, continuing to execute the external prompt action and the internal prompt action; when the execution duration data has reached the minimum total execution duration and the current external voice broadcast function is off, directly ending the external prompt action and the internal prompt action.

[0016] When the executed duration data reaches the minimum total execution duration and the external voice broadcast function is currently enabled, the real-time timestamp of the currently playing audio file is read; when the real-time timestamp has not reached the total duration of a single voice prompt audio file, an audio delay protection process is executed to maintain the validity of the external prompt action and the internal prompt action; when the real-time timestamp reaches the total duration of a single voice prompt audio file, the external prompt action and the internal prompt action are terminated.

[0017] Preferably, obtaining the preset minimum total execution time includes: determining the current on / off status of the external voice broadcast function; in the scenario where the external voice broadcast function is on, extracting the duration of the pre-stored audio file, and obtaining the preset number of loop broadcasts and the time interval between two broadcasts; multiplying the audio file duration by the number of loop broadcasts, and adding the time interval multiplied by a value one less than the number of loop broadcasts, to calculate the minimum total execution time; in the scenario where the external voice broadcast function is off, retrieving the preset default duration of pure visual warning as the minimum total execution time.

[0018] Preferably, after the central control display unit and the exterior rearview mirror warning light unit on the corresponding side of the vehicle synchronously start executing the internal prompting action, the method further includes performing closed-loop verification of the execution effect of the external prompting action and the internal prompting action. Specifically, this includes: receiving status callback messages from the vehicle side projection headlight unit, the vehicle rear display unit, the vehicle exterior speaker unit, and the exterior rearview mirror warning light unit; calling a completeness evaluation program to match the status callback messages with the directional distribution command; when it is determined that all the received status callback messages contain execution failure identifiers, or when no status callback messages are received within a preset timeout period, activating the execution failure fallback mechanism to generate a strong reminder control command; after the central control display unit, which is the core software operating platform and is in normal condition, receives the strong reminder control command, it retrieves the preset fallback screen data and displays a full-screen warning pop-up in the top layer of the central control screen.

[0019] Preferably, controlling the side projection headlights, rear display screen, and exterior speaker units on the corresponding side of the vehicle to synchronously activate and execute the external prompting action, and controlling the central control display unit and exterior rearview mirror warning light units on the corresponding side of the vehicle to synchronously activate and execute the internal prompting action includes: generating a synchronization clock signal to time-domain align the external and internal prompting actions; in the scenario where the exterior voice broadcast function is enabled, using the audio stream startup time of the exterior speaker units as the synchronization source; while triggering the exterior speaker units to execute audio broadcasts based on the audio stream startup time, simultaneously controlling the side projection headlights to project a colored ground projection image containing a danger zone border and warning text, and simultaneously controlling the rear display screen to output a warning pattern; while triggering the exterior speaker units to execute audio broadcasts, simultaneously controlling the central control display unit to render real-time image data onto the screen and overlay a visual warning interface containing a red warning frame and a dynamic guidance sign pointing to the source of danger, and simultaneously controlling the exterior rearview mirror warning light units to flash at a preset frequency matching the rhythm characteristics of the audio file.

[0020] Preferably, ending the external prompting action and the internal prompting action includes: controlling the side projection headlight unit to stop ground projection, turning off the dot matrix light source of the rear display unit, terminating the audio drive signal of the external speaker unit, turning off the visual warning interface of the central control display unit, cutting off the drive current of the external rearview mirror warning light unit, and clearing the internally recorded execution duration data, execution buffer data, and related trigger flags.

[0021] The above solution achieves the following beneficial technical effects:

[0022] This invention constructs a multi-condition concurrent logical judgment mechanism by acquiring the current gear position signal, seat belt buckle status signal, and collision risk alarm signal. Before generating a warning command, the system performs time alignment and cross-verification of the vehicle's operating status, the occupant's intention to get out of the vehicle, and the external environmental risks, accurately identifying the real dangerous scenarios of getting out of the vehicle. This avoids the problem of false alarms caused by the radar unilaterally detecting obstacles when the vehicle is in motion or when the occupant has no intention to get out of the vehicle, thus improving the accuracy of the warning trigger timing and the system's anti-interference capability.

[0023] This invention breaks through the limitations of traditional single in-vehicle sound and light alarms. By analyzing the location of danger and combining it with a pre-set actuator addressing routing table, it generates directional distribution instructions with addressing identifiers, realizing directional collaborative linkage of multiple interactive hardware inside and outside the vehicle. For the source of danger, it simultaneously triggers external and internal prompts, constructing a two-way synchronous coverage for the external physical space and the perspective of the occupants inside the vehicle, enhancing the perception depth of collision risks for external traffic participants and occupants inside the vehicle.

[0024] This invention combines the exit constraint mechanism of minimum execution time and audio playback progress. Even if the collision risk signal is transiently withdrawn during the prompt execution period, the current warning instruction can still be maintained until the set minimum total duration or the complete audio playback cycle is met. This prevents frequent interruptions of the audio-visual warning action due to fluctuations in underlying data, ensures the integrity and continuity of the multimodal prompt action to the outside world, and improves the reliability of system operation. Attached Figure Description

[0025] Figure 1 This is a flowchart of the method of the present invention. Detailed Implementation

[0026] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] This invention provides a multi-dimensional safety prompt system for vehicle door opening based on intelligent vehicle lights, including a status monitoring module, a central control module, an external interaction module, and an internal interaction module.

[0028] The status monitoring module is used to collect real-time vehicle operating status data and surrounding environmental risk data. The status monitoring module includes a gear position monitoring unit, a seat belt status monitoring unit, and a door opening warning monitoring unit. The gear position monitoring unit is used to obtain the current gear position signal of the vehicle's transmission. The seat belt status monitoring unit is used to obtain the seat belt buckle status signals of the driver's seat and the front passenger seat. The door opening warning monitoring unit is used to obtain the obstacle movement parameters in the direction of the side and rear of the vehicle and generate a collision risk alarm signal.

[0029] The status monitoring module is connected to the central control module. The central control module receives data signals sent by the status monitoring module, performs logical judgments and generates control commands. The central control module obtains the status feedback of each control node in real time through the vehicle's on-board network bus.

[0030] The control output terminals of the central control module are connected to the external interaction module and the internal interaction module respectively. The external interaction module is used to perform visual and auditory prompts outside the vehicle. The external interaction module includes a side projection headlight unit, a rear display screen unit, and an external speaker unit. The side projection headlight unit is a digital projection headlight set on both sides of the vehicle. The rear display screen unit is a light-emitting diode display panel set at the rear of the vehicle. The external speaker unit is used to output audio signals to the external environment of the vehicle.

[0031] The in-vehicle interaction module is used to output visual interactive images and light effect signals to the occupants inside the vehicle. The in-vehicle interaction module includes a central control display unit and an exterior rearview mirror alarm light unit. The central control display unit is used to output vehicle environment images and alarm interfaces, and the exterior rearview mirror alarm light units are located on the exterior rearview mirrors on both sides of the vehicle.

[0032] See attached document Figure 1 The status monitoring module collects vehicle gear position data, occupant seat belt status data, and surrounding obstacle alarm data in real time. The status monitoring module continuously transmits the collected data to the central control module. The central control module performs concurrent logic judgment on the received data signals. When the central control module simultaneously identifies that the vehicle is in parking gear, the seat belt is unfastened, and the door opening warning monitoring unit outputs a collision risk alarm signal, it determines that the triggering conditions are met and generates a multi-channel collaborative execution command.

[0033] Based on the alarm location reported by the door opening warning monitoring unit, the central control module sends multi-channel coordinated execution commands to the external interaction module and the internal interaction module. The external interaction module controls the side projection headlight unit, the rear display unit, and the external speaker unit to activate external prompts, while the internal interaction module controls the central control display unit and the exterior rearview mirror warning light unit to activate internal prompts.

[0034] During the execution of actions, the central control module receives status feedback signals from each interactive execution unit. The central control module performs execution completeness verification based on the status feedback signals. If it is determined that the execution of actions in each channel has failed, the central control module generates a forced alarm command to call the central control display unit to output a pop-up screen.

[0035] The central control module imposes a minimum execution cycle limit on the prompting action. After the execution cycle reaches the set time threshold, the central control module monitors the data changes of the status monitoring module. When it is determined that the triggering condition is not met, the central control module detects the output progress of the current audio playback and generates a function exit command based on the complete audio playback cycle node, ending the current prompting process.

[0036] See attached document Figure 1 The status monitoring module continuously reads message data from the underlying hardware nodes through the vehicle's onboard network bus to achieve real-time monitoring of vehicle operating status and environmental risks. The status monitoring module converts the underlying signals collected by physical sensors into digital status identifiers and transmits them synchronously to the central control module.

[0037] During the vehicle status signal acquisition process, the gear position monitoring unit acquires the gear position messages of the vehicle's transmission in real time. The gear position monitoring unit establishes a communication connection with the vehicle's transmission control unit through the vehicle network bus and periodically reads the actual position signal of the transmission output shaft. When the gear position monitoring unit parses that the transmission is in the parking gear, the gear position monitoring unit outputs a parking status valid bit identifier. For the transmission and reception control and protocol parsing of the vehicle network bus messages, those skilled in the art can use existing controller area network protocol standards.

[0038] The seat belt status monitoring unit acquires the seat belt buckle status of the occupants in the vehicle in real time. The seat belt status monitoring unit establishes data interaction with the body control module and continuously monitors the status of the gravity occupancy sensor of the driver's seat and the passenger seat and the level signal change of the seat belt buckle sensor. Under normal driving conditions, the gravity occupancy sensor recognizes that there is an occupant in the corresponding seat and the seat belt buckle is in the closed state, and outputs a constant level.

[0039] When an occupant presses the buckle to release the seatbelt, the physical circuit is broken, causing the level signal to flip. The seatbelt status monitoring unit determines that the occupant of the corresponding seat is present and the seatbelt is unfastened based on the continuous effectiveness of the gravity occupancy sensor and the flipping action of the level signal, and generates an occupant's intention to get out of the vehicle indication signal.

[0040] The door opening warning monitoring unit acquires the motion parameters of targets behind and to the side of the vehicle in real time and generates a collision risk alarm signal. The door opening warning monitoring unit calls on the environmental perception sensors distributed at the rear and sides of the vehicle. The environmental perception sensors include corner radar and side rearview cameras. The door opening warning monitoring unit acquires the position coordinates, relative distance and relative speed of the target object approaching the vehicle. Based on the relative distance and relative speed of the target object, the door opening warning monitoring unit calculates the estimated collision time when the target object reaches the maximum outer envelope area of ​​the door opening.

[0041] The door opening warning monitoring unit has a set safe time threshold and a dangerous distance threshold. When the estimated collision time calculated by the door opening warning monitoring unit is less than the preset safe time threshold, or when the current position coordinates of the target object enter the set dangerous distance threshold range, the door opening warning monitoring unit determines that there is a risk of door opening collision.

[0042] When the door opening warning monitoring unit outputs a collision risk alarm signal, it simultaneously records the location information of the target object that triggered the alarm and encodes the location information as a left alarm sign, a right alarm sign, or a double-sided alarm sign and transmits it to the central control module. For the technical implementation of angle radar and visual camera to detect the relative distance and relative speed of the target object, those skilled in the art can directly apply existing environmental perception algorithms.

[0043] After receiving the message transmitted by the status monitoring module, the central control module performs logical comparison and judgment. The multi-condition concurrent fusion judgment logic cross-verifies the vehicle status and the occupant's intention to avoid false alarms in non-door-opening scenarios.

[0044] The central control module receives parking status valid bit flags, occupant exit intention flags, and collision risk alarm signals transmitted by the status monitoring module. Because the message transmission cycles of various hardware nodes in the vehicle's onboard network bus differ, the central control module performs time alignment processing on the received signals before executing logical judgments. The central control module extracts the timestamps of the received signals and groups the parking status valid bit flags, occupant exit intention flags, and collision risk alarm signals within the same time judgment window into the same calculation cycle. This time alignment processing ensures that the data for concurrent logical judgments are in a unified time dimension.

[0045] After completing the time alignment of the data, the central control module calls the internal logic operation program to perform a logical AND operation. The central control module uses the parking status valid bit flag, the occupant's intention to get out of the vehicle flag signal, and the collision risk alarm signal as parallel input variables.

[0046] The central control module outputs a comprehensive trigger indicator when and only when the parking status valid indicator indicates that the transmission is in parking gear, the occupant exit intention indicator signal indicates that the driver's or passenger's seat belt is unfastened, and the collision risk warning signal indicates that there is a collision risk to the side or rear of the vehicle. The central control module then determines that the triggering conditions for the multi-dimensional safety warning function are initially met based on the comprehensive trigger indicator.

[0047] If any one of the three input variables—the parking status valid indicator, the occupant disembarkation intention indicator signal, and the collision risk alarm signal—is invalid, the central control module's logic operation program outputs a function suppression indicator. For example, if the collision risk alarm signal indicates the presence of a dangerous object, but the parking status valid indicator indicates the transmission is in drive, the central control module determines that the occupant does not meet the conditions for disembarking and thus suppresses the triggering of the warning function.

[0048] When the parking status valid indicator shows that the vehicle is in the parking position and the collision risk alarm signal indicates that there is a dangerous object, but the occupant's intention to get out of the vehicle indicator signal indicates that the seat belt is fastened, the central control module determines that the occupant has no intention to get out of the vehicle. The central control module also suppresses the triggering of the prompt function. The multi-condition concurrent fusion judgment logic shields the false alarms caused by a single sensor in complex traffic scenarios.

[0049] To avoid logical misjudgments caused by network packet frame loss or occasional sensor signal jumps, the central control module has a debouncing verification mechanism at the output of the logic operation program. After detecting the comprehensive trigger flag output by the logic operation program, the central control module starts an internal timer. The central control module monitors whether the comprehensive trigger flag remains valid within a preset time period. When the comprehensive trigger flag does not fall back in state within the preset time period and remains valid, the central control module finally confirms that the triggering conditions for the multi-dimensional safety prompt function are established. The central control module then generates a multi-channel collaborative execution instruction and enters the execution phase of the prompt action.

[0050] After establishing the triggering conditions for the multi-dimensional safety alert function, the central control module performs a matching process for the dangerous location. The location matching is used to make the alert action correspond to the physical space location where there is a collision risk, so as to avoid generating indiscriminate alarms.

[0051] The central control module parses the collision risk alarm signal transmitted by the door opening warning monitoring unit. It extracts the hazard orientation field from the data frame payload. This field uses a binary mask or enumerated variable data structure to record the relative spatial position of external obstacles relative to the vehicle body. Based on the value of the hazard orientation field, the central control module classifies the hazard source into left-side, right-side, and both-side hazard states. The definition of the data frame format and message parsing processing can be implemented using existing vehicle network communication protocol parsing methods.

[0052] After acquiring the hazard location status, the central control module establishes a spatial mapping relationship between the hazard source and execution nodes at all levels. The central control module internally stores an actuator addressing routing table, which records the target hardware network addresses of each physical execution unit under the external and internal interaction modules. The central control module uses the acquired hazard location status as an index condition to input into the actuator addressing routing table, queries the corresponding target hardware network address, and generates a directional distribution instruction with an addressing identifier based on the queried target hardware network address.

[0053] The central control module transmits directional distribution commands to the external interaction module via the vehicle network bus. When the danger position status indicates a danger state on the left, the external interaction module parses the directional distribution command, activates the side projection headlight unit installed on the left side of the vehicle, and controls the rear display unit to output the warning content corresponding to the left side.

[0054] When the danger position status indicator is a right-side danger condition, the external interaction module activates the side projection headlight unit installed on the right side of the vehicle and controls the rear display screen unit to output the corresponding warning content on the right side. When the danger position status indicator is a double-sided danger condition, the external interaction module simultaneously activates the side projection headlight units on both the left and right sides of the vehicle and controls the rear display screen unit to simultaneously output the global warning content corresponding to both sides.

[0055] The central control module synchronously transmits the directional distribution command to the in-vehicle interaction module. When the danger position status indicates a danger state on the left, the in-vehicle interaction module parses the directional distribution command, controls the central control display unit to retrieve the camera image resources located in the left rearview mirror or the left side of the vehicle, and outputs a visual warning interface on the left screen area of ​​the central control display unit. At the same time, the in-vehicle interaction module generates a hard-wired drive level to illuminate the warning light unit installed on the left side of the vehicle's exterior rearview mirror.

[0056] When the danger location status indicator is a right-side danger status, the in-vehicle interaction module retrieves real-time image data from the right-side camera and outputs a visual warning interface on the right-side screen area of ​​the central control display unit. At the same time, the right-side exterior rearview mirror warning light unit is illuminated. When the danger location status indicator is a double-side danger status, the in-vehicle interaction module retrieves real-time image data from both side cameras and displays it in a split-screen manner. The visual warning interface is simultaneously output on the left and right sides of the central control screen, and the left and right exterior rearview mirror warning light units are driven to flash synchronously. The control method based on hardware addressing mapping converts the message location information into physical channel execution commands, realizing the directional output of external warning actions and internal interactive screens.

[0057] After receiving the directional distribution command from the central control module, the external interaction module controls the subordinate side projection headlight unit, rear display unit, and external speaker unit to perform synchronous output actions. The external interaction module converts the alarm command into visual and auditory warning signals from outside the vehicle to alert external traffic participants to take evasive action.

[0058] The external interaction module parses the directional distribution command and controls the side projection headlight unit to activate the projection action. The specific lower-level hardware of the side projection headlight unit is a digital light processing headlight system based on digital micromirror devices or a high-pixel matrix headlight system. Based on the hazard location status carried in the directional distribution command, the side projection headlight unit calls the preset image template data in the controller's internal memory. The side projection headlight unit projects the image template data onto the ground area on the vehicle's alarm side through an optical lens group. The projected image content is a color ground projection image, specifically including a hazard range border of a set size and warning text. The projected image on the ground marks the physical space occupied by the open door for pedestrians and non-motorized vehicles approaching the vehicle. For the optical path control and image array refresh technology of the digital micromirror devices, those skilled in the art can use existing projection headlight drive solutions.

[0059] The external interaction module synchronously controls the rear display unit to output visual warning information. The specific hardware of the rear display unit is a micro LED dot matrix panel or an organic LED display panel. The rear display unit receives the driving signal from the external interaction module and lights up the pixel matrix at a specific position. The rear display unit displays the text "Door opening soon, be careful" and warning patterns corresponding to the dangerous positions at the rear of the vehicle. The text prompts and warning patterns are used to convey the intention of the occupants to open the door to traffic participants behind the vehicle.

[0060] While the side projection headlights and rear display screen are turned on, the external interaction module controls the external speaker units to perform auditory warning actions. The specific hardware of the external speaker units is either the vehicle acoustic alarm system speaker or an independent external acoustic generator. The external interaction module retrieves the door opening warning voice file from the audio storage chip and generates an audio drive signal to make the external speaker units sound. The external interaction module has internal control logic that controls the external speaker units to perform a loop voice broadcast action at a time interval of 1 second after each broadcast. The loop voice broadcast continues to run to maintain the auditory warning effect outside the vehicle.

[0061] The system supports customized adaptation of multiple notification formats. Users can customize the external alert method through the central control display unit according to their needs. For example, users who are concerned about disturbing the external environment can choose to retain only the external light alert format of the side projection and rear display screen; users who want a stronger warning effect can choose to enable external voice broadcast. At the same time, the brightness of the external projection and the volume of the voice broadcast are preset to a user-friendly parameter range to ensure that effective warnings are achieved without causing disturbance to neighbors or glare.

[0062] The ground projection of the side projection headlight unit, the text and pattern display of the rear display unit, and the intermittent voice broadcast of the external speaker unit together constitute the execution actions of the external interaction channel. The visual and auditory hardware are activated synchronously after receiving the directional distribution command to complete the area calibration of the vehicle's external environment, the transmission of the door opening intention, and the output of sound warnings.

[0063] After receiving the directional distribution command sent by the central control module, the in-vehicle interaction module drives the central control display unit and the exterior rearview mirror warning light unit to work together. The in-vehicle interaction module converts the digital danger location signal into a visual warning signal for the occupants, establishing an in-vehicle dimension warning interaction feedback.

[0064] The in-vehicle interaction module analyzes the danger location status in the directional distribution command. When the danger location status indicates a danger status on the left, the in-vehicle interaction module retrieves the real-time image data from the left-side rearview camera of the vehicle through the video processing chip as a blind spot compensation image. The central control display unit receives the real-time blind spot compensation image data and renders the real-time image data to the display screen.

[0065] The central control display unit overlays a visual warning interface on top of the real-time video data layer. This interface includes a red warning frame (i.e., a red warning on the screen) and dynamic guidance signs pointing to the source of danger. By merging the external environment's blind spot imagery with the graphical warning interface, the central control display unit allows occupants to obtain the movement trajectory of dangerous objects. For the acquisition, encoding, and overlay rendering of the video stream, those skilled in the art can utilize existing graphical display controllers.

[0066] While driving the central control display unit, the in-vehicle interaction module simultaneously controls the exterior rearview mirror warning light unit to perform light effect actions. The lower-level hardware of the exterior rearview mirror warning light unit is a group of light-emitting diodes embedded in the edge of the vehicle's exterior rearview mirror lens or in the rearview mirror housing. The in-vehicle interaction module outputs driving current to the corresponding exterior rearview mirror warning light unit according to the addressing information in the directional distribution command.

[0067] When the danger orientation status indicator is a danger status on the left, the in-vehicle interaction module controls the left exterior rearview mirror warning light unit to flash at a preset frequency. The flashing light signal generated by the exterior rearview mirror warning light unit enters the field of vision of the occupant who is about to open the door. By setting the light prompts in the occupant's blind spot path, the occupant's response time to danger information can be shortened.

[0068] The environmental images provided by the central control display unit and the directional light signals provided by the exterior rearview mirror warning light unit together constitute the execution action of the in-vehicle interaction channel. The in-vehicle interaction module ensures that the occupants can receive a clear collision risk warning from a visual dimension before opening the door by coordinating the content of the display screen and the physical warning light hardware. The visual warning interface and the flashing action of the exterior rearview mirror warning light unit are synchronized in time dimension, realizing the feedback output of in-vehicle warning information.

[0069] While activating the external and internal interaction modules, the central control module performs minimum execution time constraint processing. This minimum execution time constraint processing is used to solve the alarm interruption problem caused by transient jumps or target loss in the original signal collected by the door opening warning monitoring unit. The central control module ensures the continuity of physical execution of multi-dimensional safety prompt actions by establishing time-dimensional instruction maintenance logic, thus avoiding frequent interruptions in warning lights or sound signals.

[0070] The central control module extracts the duration of the pre-stored audio file from the external speaker unit, and obtains the preset number of loop playbacks and the time interval between two playbacks. When the user turns on the external voice playback function, the central control module calculates the shortest total execution time by multiplying the duration of the audio file by the number of loop playbacks and adding the time interval multiplied by a value that is one less than the number of loop playbacks.

[0071] When the user disables the external voice broadcast, the central control module retrieves the preset default duration of the pure visual warning (e.g., 5 seconds) from the system's internal non-volatile memory as the minimum total execution time. The central control module uses this calculated minimum total execution time as the lower limit of the operating parameters for each execution unit and writes it into the central control module's execution buffer. In scenarios where voice broadcast is enabled, a timing method based on the complete audio broadcast cycle provides a unified time reference point for both visual and auditory cues from the external interaction module, ensuring that the duration of visual warnings is not less than that of auditory warnings. Conversely, in scenarios where voice broadcast is disabled, the preset default duration of the pure visual warning is used as the unified time reference point to ensure the continuity of the visual warning actions.

[0072] During the execution of the prompt action, the central control module continuously monitors the trigger status from the status monitoring module. If the collision risk alarm signal from the door opening warning monitoring unit disappears before the minimum total execution time is reached, or if the parking status valid bit flag output by the gear position monitoring unit briefly flips, the central control module activates the command maintenance mechanism. The central control module forcibly maintains the currently issued targeted distribution command and does not respond to shutdown requests from the status monitoring module.

[0073] Under the command maintenance mechanism, the side projection headlight unit, rear display unit, central control display unit, and exterior rearview mirror warning light unit continue to maintain the current warning output state until the system timer value reaches the minimum total execution time. This can compensate for signal jitter caused by obstacle obstruction or corner radar multipath effect, ensuring the complete expression of warning information.

[0074] To achieve multimodal synchronous output, the external interaction module and the internal interaction module are time-domain aligned through a synchronization clock signal issued by the central control module. The external interaction module uses the audio stream start time of the external speaker unit as the synchronization source. At the same time as the audio broadcast is turned on, the central control module simultaneously triggers the ground image projection action of the side projection headlight unit and the text guidance display action of the rear display unit. The internal interaction module simultaneously renders the visual warning interface on the central control display unit and drives the external rearview mirror warning light unit to flash. The flashing frequency or image refresh rate of the visual signal is matched with the rhythm characteristics of the audio file, realizing multimodal synchronous interaction of sound, ground projection, screen image and rearview mirror lights.

[0075] The minimum execution time constraint and multimodal synchronization mechanism enhance the system's robustness. Even if the original risk signal disappears within a short period, the system can still complete a full closed-loop guidance to pedestrians outside the vehicle and occupants inside, ensuring the depth of warning information perception and preventing observation difficulties for external traffic participants caused by sudden interruption of warning actions, thus ensuring reliable output of the alarm function. After the system timer reaches the minimum total execution time, the central control module re-evaluates the real-time signals from the status monitoring module. If the triggering conditions are still not met, the central control module generates a function exit command.

[0076] After the central control module issues targeted distribution instructions to each execution node, it simultaneously starts the monitoring logic for the executed actions. The central control module receives status messages from the external and internal interaction modules in real time through the vehicle network bus, realizing closed-loop verification of the execution effect of the interaction actions.

[0077] When the external and internal interaction modules drive the subordinate execution units to operate, they collect the real-time operating parameters of the execution units. The controllers integrated inside the side projection headlight unit, rear display unit, external speaker unit, and external rearview mirror warning light unit have self-diagnostic functions. The controller inside the hardware unit detects the current and voltage values ​​of the output circuit in real time. When the current or voltage value is detected to deviate from the preset normal operating range, it determines that the hardware has a short circuit, open circuit, or overload fault and generates a hardware fault mark.

[0078] The external and internal vehicle interaction modules encapsulate hardware fault identifiers in status callback messages, which are then uploaded to the central control module via the vehicle network bus. For the self-diagnosis and fault message encapsulation technology of hardware driver chips, those skilled in the art can use existing vehicle electronic control unit diagnostic solutions.

[0079] After receiving the status callback message, the central control module calls the internal completeness assessment program. The completeness assessment program matches the received status callback message with the sent targeted distribution instructions. If the central control module identifies that the feedback corresponding to some execution addresses is an execution failure, the central control module will assess whether the remaining normally operating execution channels can cover the basic warning requirements. When it is identified that some hardware units have failed, but there are still other execution units in the external or internal interaction modules that can output warning signals, the central control module maintains the current interaction process and records the physical address of the faulty execution unit.

[0080] Under extreme conditions, if the central control module determines that all status callback messages from the vehicle-side projection headlights, rear display screen, exterior speaker units, and exterior rearview mirror warning light units under the vehicle-side and in-vehicle interaction modules contain execution failure flags, or if the central control module does not receive any feedback signal from any interaction module within a preset timeout period, the central control module determines that the current collaborative execution strategy has completely failed. At this point, the central control module activates the execution failure fallback mechanism, generating a high-priority strong alert control command and sending it to the central control display unit, which is the core software operating platform and is in normal condition.

[0081] After receiving the strong reminder control command, the central control display unit retrieves the backup screen data preset in the non-volatile memory through the underlying graphics controller.

[0082] The central control display unit displays a full-screen warning pop-up in the top layer of the central control screen. The content of the full-screen warning pop-up includes text prompts requiring occupants to manually observe the environment. The display priority of the full-screen warning pop-up is set to the highest level, which can cover the current navigation image or blind spot image of the central control display unit.

[0083] The state callback-based monitoring strategy enables end-to-end monitoring from the control layer to the physical execution layer. When all external alert channels are unavailable, the system alerts occupants to the risk of opening the door through the last line of defense inside the vehicle, thus improving the vehicle's multi-dimensional door opening safety alert system's defense capabilities in hardware failure scenarios.

[0084] During the execution of multi-channel collaborative prompts, the central control module continuously polls and analyzes the data signals transmitted by the status monitoring module. By identifying changes in vehicle status, occupant intentions, and external environmental risks, it determines whether the system meets the exit trigger conditions.

[0085] The central control module monitors the real-time gear position signal from the gear position monitoring unit. When the central control module detects that the current gear position has shifted from parking to drive, reverse, or neutral, it determines that the vehicle has exited the parking state. At this point, the vehicle no longer has the physical environment for static door opening, and the central control module records the change in vehicle gear position as a valid input signal for exit triggering the condition. For parsing the gear position status message sent by the gear control module via the vehicle network bus, those skilled in the art can use existing bus communication protocols.

[0086] The central control module receives the level signal and gravity occupancy sensor signal sent by the seat belt status monitoring unit in real time. When the occupant re-fastens the seat belt in the driver's or passenger's seat, the physical circuit in the seat belt buckle closes, causing the signal level to return from the flipped state to the initial constant state. Alternatively, when the gravity occupancy sensor detects that the occupant of the corresponding seat has left the vehicle, the seat belt status monitoring unit captures the recovery action of the level signal or the clearing action of the occupancy signal and generates an intention to cancel the signal.

[0087] After receiving the intention to cancel the signal, the central control module determines that the passenger no longer needs to get off the vehicle and uses the intention to cancel the signal as another criterion for exiting the vehicle.

[0088] The central control module tracks the status of the collision risk alarm signal output by the door opening warning monitoring unit. As the external target object moves away from the vehicle or stops moving, the door opening warning monitoring unit recalculates the estimated collision time of the target object reaching the maximum outer envelope area of ​​the door opening. When the estimated collision time recovers to above the safe time threshold, or when the distance between the target object and the vehicle exceeds the danger distance threshold, the door opening warning monitoring unit cancels the collision risk alarm signal and sends an alarm cancellation message to the central control module. The central control module recognizes the alarm cancellation message as an indication that the environmental risk has been eliminated and determines that the external warning requirement has disappeared.

[0089] The central control module performs logical OR operation processing on the gear change signal, intention cancellation indicator, and alarm cancellation message identified above. When any one of the gear change signal, intention cancellation indicator, or alarm cancellation message is valid, the central control module determines that the current exit trigger condition is met. Based on the met exit trigger condition, the central control module enters the preparatory stage for disabling the prompt function.

[0090] After determining that the exit trigger condition is met, the central control module synchronously reads the execution duration data recorded by the internal timer and retrieves the shortest total execution duration value stored in the execution buffer. The central control module then compares the execution duration with the shortest total execution duration.

[0091] If the execution time has not reached the minimum total execution time, the central control module maintains the sending state of the targeted distribution command, forcing the external and internal interaction modules to continue working until the time constraint is met. If the execution time has already met the minimum total execution time, the central control module further checks whether the external voice broadcast function is currently enabled. If it is enabled, it enters the audio playback progress detection process. If the user has customized to disable the external voice broadcast function, it directly generates a function exit command. Through the above exit judgment logic for multi-source signals, the central control module can capture changes in vehicle operating status and occupant behavior, ensuring that the system can respond and enter the shutdown process when the collision risk is eliminated or the exit scenario disappears.

[0092] Once the central control module determines that the exit trigger condition is met and the execution duration of the prompt action meets the minimum total execution duration requirement, if the current external voice broadcast function is on, it will initiate the audio delay protection process. The central control module will monitor the audio output progress of the external speaker unit in real time to ensure that the multi-dimensional safety prompt system for opening the vehicle door will shut down at the end of the audio playback, thus avoiding the warning voice from being interrupted suddenly in the middle.

[0093] The central control module communicates with the external interaction module through the vehicle network bus, reads the current playback status register of the audio codec inside the external speaker unit, and the external interaction module extracts the real-time timestamp of the currently playing audio file. The central control module compares the obtained real-time timestamp with the preset total duration of a single voice prompt audio file. For the audio playback status reading and timestamp comparison technology, those skilled in the art can use existing audio driver interface protocols.

[0094] When the central control module detects that the real-time timestamp has not reached the total duration of a single voice prompt audio file, the central control module determines that the audio playback has not ended. The central control module executes the delayed exit logic to maintain the effective state of the targeted distribution command and control the external and internal interaction modules to continue to work.

[0095] During the delay period, the side projection headlights continue to project ground images, the rear display screen maintains text and graphic display, and the central control display and the exterior rearview mirror warning light units maintain visual prompts synchronously. The delay processing ensures that the exit point of the visual signal and the end point of the playback of the auditory signal are consistent in the time dimension.

[0096] When the central control module detects that the real-time timestamp of the external speaker unit equals the total duration of a single voice prompt audio file, or when the central control module receives a playback completion interruption signal from the audio codec, the central control module determines that the smooth exit time node has been reached. The central control module then generates a function exit command and sends it to the external and internal interaction modules via the vehicle network bus. Upon receiving the function exit command, the external interaction module controls the side projection headlights to stop ground projection, turns off the dot matrix light source of the rear display unit, and terminates the audio drive signal of the external speaker units. Simultaneously, the internal interaction module turns off the visual warning interface of the central control display unit and cuts off the drive current of the exterior rearview mirror warning light units.

[0097] After the side projection headlights, rear display screen, exterior speaker units, central control display unit, and exterior rearview mirror warning lights have all turned off, the central control module clears the internally recorded execution duration data, execution buffer data, and related trigger flags, ending the current door opening warning prompt process. By extracting the state of the audio end node, the central control module ensures that the visual and auditory alarm actions are simultaneously cut off after the audio file has been fully played, guaranteeing the complete output of the sound and light interaction actions of the vehicle door opening multi-dimensional safety prompt system.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for multi-dimensional safety prompting of opening a door of a vehicle based on intelligent vehicle lights, characterized in that, Includes the following steps: The system acquires the vehicle's current gear position signal, seat belt buckle status signal, and obstacle motion parameters, and generates a collision risk alarm signal based on the obstacle motion parameters. The current gear position signal, the seat belt buckle status signal, and the collision risk alarm signal are subjected to concurrent logic judgment. When the preset triggering conditions are met, a multi-channel collaborative execution command is generated. The collision risk alarm signal is analyzed to extract the danger orientation field and obtain the danger orientation status. Based on the danger orientation status and the multi-channel collaborative execution command, the corresponding external prompting action and internal prompting action are executed in a directional manner. During the execution of the external prompt action and the internal prompt action, the data changes of the current gear position signal, the seat belt buckle status signal and the collision risk alarm signal are monitored, and the external prompt action and the internal prompt action are terminated when the preset exit trigger condition is determined to be met.

2. The method for multi-dimensional safety prompts for vehicle door opening based on intelligent vehicle lights according to claim 1, characterized in that, The steps for generating a collision risk alarm signal based on the obstacle motion parameters specifically include: Extract the target object's position coordinates, relative distance, and relative velocity from the obstacle's motion parameters; Based on the relative distance and the relative speed, calculate the estimated collision time for the target object to reach the maximum outer envelope area of ​​the door opening; When the estimated collision time is less than a preset safe time threshold, or when the position coordinates of the target object enter the set dangerous distance threshold range, it is determined that there is a risk of door opening collision and a collision risk alarm signal is generated.

3. The method for multi-dimensional safety prompts for vehicle door opening based on intelligent vehicle lights according to claim 1, characterized in that, The steps of performing concurrent logic judgments on the current gear position signal, the seat belt buckle status signal, and the collision risk alarm signal, and generating a multi-channel collaborative execution command when a preset triggering condition is met, specifically include: Extract the timestamps of the current gear position signal, the seat belt buckle status signal, and the collision risk alarm signal, and divide the data within the same time judgment window into the same calculation cycle for time alignment processing; Perform a logical AND operation on the data that has completed the time alignment process. Output a comprehensive triggering flag if and only if the parking status valid flag corresponding to the current gear signal indicates that the vehicle is in parking gear, the occupant exit intention flag corresponding to the seat belt buckle status signal indicates that the driver's or passenger's seat belt is unfastened, and the collision risk alarm signal indicates that there is a collision risk to the side or rear of the vehicle. When the integrated triggering identifier remains valid within a preset time period, the triggering condition is determined to be met and the multi-channel collaborative execution instruction is generated.

4. The method for multi-dimensional safety prompts for vehicle door opening based on intelligent vehicle lights according to claim 1, characterized in that, The steps of executing external and internal warning actions in the corresponding directions based on the dangerous location status and the multi-channel collaborative execution command specifically include: The dangerous orientation status is used as an index condition to input into the pre-established actuator addressing routing table to query and obtain the corresponding target hardware network address; Generate a targeted distribution instruction with an addressing identifier based on the target hardware network address and the multi-channel cooperative execution instruction; According to the addressing identifier in the directional distribution instruction, control the side projection headlight unit on the corresponding side of the vehicle to start the projection action, control the rear display screen unit to output warning content that matches the corresponding side, and control the external speaker unit to start synchronously to execute the external prompt action. The central control display unit synchronously outputs a visual warning interface on the corresponding side screen area and controls the corresponding side exterior rearview mirror warning light unit of the vehicle to synchronously start and execute the internal prompt action.

5. A method for multi-dimensional safety prompts for vehicle door opening based on intelligent vehicle lights according to claim 1, characterized in that, The steps for determining whether the preset exit trigger condition is met specifically include: When the current gear signal is detected to have changed from park to drive, reverse or neutral, a gear change signal is generated; When the level signal of the seat belt fastening status signal is detected to return to the initial constant state, or when the clearing action of the gravity occupancy sensor occupancy signal is detected, an intention to cancel flag is generated; When the collision risk alarm signal is detected to be canceled, an alarm cancellation message is generated; The gear change signal, the intent cancellation flag, and the alarm cancellation message are processed by logical OR operation. When any one of the signals is valid, the exit trigger condition is determined to be met.

6. A method for multi-dimensional safety prompts for vehicle door opening based on intelligent vehicle lights according to claim 1, characterized in that, The steps to end the external prompting action and the internal prompting action when the preset exit triggering condition is met specifically include: Read the execution duration data of the external prompt action and the internal prompt action, and obtain the set minimum total execution duration; When the execution duration data has not reached the shortest total execution duration, the external prompt action and the internal prompt action continue to be executed. When the execution duration data reaches the shortest total execution duration and the current external voice broadcast function is turned off, the external prompt action and the internal prompt action are directly terminated. When the executed duration data reaches the shortest total execution duration and the current external voice broadcast function is enabled, read the real-time timestamp of the audio file being played. When the real-time timestamp does not reach the total duration of a single voice prompt audio file, an audio delay protection process is executed to maintain the valid state of the external prompt action and the internal prompt action. When the real-time timestamp reaches the total duration of the single voice prompt audio file, the external prompt action and the internal prompt action end.

7. A method for multi-dimensional safety prompts for vehicle door opening based on intelligent vehicle lights according to claim 6, characterized in that, The specific steps for obtaining the set minimum total execution time include: Determine the current status of the vehicle's external voice broadcast function; When the external voice broadcast function is enabled, extract the duration of the pre-stored audio file, and obtain the set number of loop broadcasts and the time interval between two broadcasts; The shortest total execution time is calculated by multiplying the duration of the audio file by the number of loop playbacks, and adding the time interval multiplied by a value one less than the number of loop playbacks. In scenarios where the external voice broadcast function is turned off, the preset default duration of the purely visual warning is used as the minimum total execution time.

8. A method for multi-dimensional safety prompts for vehicle door opening based on intelligent vehicle lights according to claim 4, characterized in that, After the step of simultaneously activating the central control display unit and the exterior rearview mirror warning light unit on the corresponding side of the vehicle to execute the internal prompting action, the method further includes a step of performing closed-loop verification of the execution effects of the external prompting action and the internal prompting action, specifically including: Receive status callback messages from the vehicle side projection headlight unit, the vehicle rear display screen unit, the vehicle exterior speaker unit, and the exterior rearview mirror warning light unit; The completeness assessment procedure is invoked to match the address of the status callback message with the targeted distribution instruction; When it is determined that all received status callback messages contain execution failure identifiers, or when no status callback message is received within the preset timeout period, the execution failure fallback mechanism is activated to generate a strong reminder control command. After receiving the strong reminder control command, the central control display unit, which is the core software operating platform and is in normal condition, retrieves the preset backup screen data and displays a full-screen warning pop-up in the top layer of the central control screen.

9. A method for multi-dimensional safety prompts for vehicle door opening based on intelligent vehicle lights according to claim 4, characterized in that, The steps of controlling the vehicle's side projection headlight unit, rear display screen unit, and exterior speaker unit to synchronously activate and execute the external prompting action, and controlling the vehicle's center console display unit and exterior rearview mirror warning light unit to synchronously activate and execute the internal prompting action specifically include: A synchronization clock signal is generated to align the external prompt action and the internal prompt action in the time domain. In the scenario where the external voice broadcast function is enabled, the start time of the audio stream of the external speaker unit is used as the synchronization source. While triggering the external speaker unit to execute audio broadcast based on the audio stream start time, the vehicle side projection headlight unit is simultaneously controlled to project a colored ground projection image containing a danger zone border and warning text, and the rear display screen unit is simultaneously controlled to output warning patterns. While triggering the external speaker unit to play audio, the central control display unit is simultaneously controlled to render real-time video data onto the screen and overlay a visual warning interface containing a red warning frame and a dynamic guide sign pointing to the source of danger. Simultaneously, the external rearview mirror warning light unit is controlled to flash at a frequency that matches the rhythm characteristics of the audio file.

10. A method for multi-dimensional safety prompts for vehicle door opening based on intelligent vehicle lights according to claim 9, characterized in that, The steps to end the external prompt action and the internal prompt action specifically include: The system controls the side projection headlight unit to stop projecting onto the ground, turns off the dot matrix light source of the rear display unit, terminates the audio drive signal of the external speaker unit, turns off the visual warning interface of the central control display unit, cuts off the drive current of the external rearview mirror warning light unit, and clears the internally recorded execution duration data, execution buffer data, and related trigger flags.

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