Intelligent self-closed loop vehicle lamp controller SOC time division multiplexing control system and method
By merging the controllers of traditional intelligent headlight systems into a SOC controller and adopting time-sharing multiplexing and priority arbitration scheduling, the problems of high hardware cost, high power consumption and low communication efficiency are solved, dynamic allocation and synchronization of resources are achieved, and system complexity and cost are reduced.
Patent Information
- Application Number
- CN202510901614.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-01
- Publication Date
- 2025-10-03
AI Technical Summary
The independent development of projection warning and high-resolution adaptive high-beam modules in traditional smart headlight systems results in high hardware costs, high power consumption, low communication efficiency, and increased component redundancy and interface requirements, hindering the large-scale popularization of the system.
The intelligent self-closed-loop headlight controller SOC time-sharing multiplexing control method is adopted to merge the camera, intelligent driving domain controller, intelligent cockpit domain controller and SOC controller into one system. Through time-sharing multiplexing and priority arbitration scheduling, HD ADB lighting control signals and projection control signals are generated to achieve dynamic resource allocation and synchronous operation.
It reduces hardware costs and system power consumption, improves communication efficiency, reduces the number of vehicle communication interface resources, and ensures that the HD ADB module and projection light module work together without conflict in the time and space dimensions.
Smart Images

Figure CN120751546A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an intelligent self-closed-loop vehicle light controller SOC time-sharing multiplexing control system and method, belonging to the technical field of automobile electronic control. Background Art
[0002] Currently, a significant challenge facing automotive intelligent headlight systems lies in their functional implementation. In traditional intelligent headlight systems, projection warnings (dynamic light effect reminders) and high-resolution adaptive high beams (HD ADB) are typically developed and deployed using independent hardware modules. This separate architecture creates systemic bottlenecks in multiple key dimensions.
[0003] First, since each module requires an independent dedicated core processor (such as MCU / SOC), peripheral circuits, storage units and physical housing, the hardware cost is high. In addition, the sensor bases that the two rely on (such as cameras and radars) may be purchased repeatedly when their functions overlap, which will result in redundant component expenses.
[0004] Furthermore, the independent computing units for projection warning and high-resolution adaptive high-beam work in parallel, resulting in double the static and dynamic power consumption overhead, the total of which far exceeds that of an integrated solution.
[0005] In addition, the two modules must interact with the domain controller (DCU) through independent communication channels (LIN / CAN), transmitting raw data and control instructions respectively, which squeezes the network bandwidth in the vehicle, increases interface requirements and connector and wiring harness costs, and cross-module collaboration may also cause additional risks of delay and reliability.
[0006] The bloated hardware costs, excessive power consumption, and inefficient communication caused by the discrete model in traditional smart headlight systems have become key obstacles to the large-scale popularization of advanced lighting systems. Summary of the Invention
[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide an intelligent self-closed-loop vehicle light controller SOC time-sharing multiplexing control system and method, which can reduce the hardware cost of the product, reduce system power consumption, improve communication efficiency, and at the same time reduce the number of vehicle communication interface resources.
[0008] In order to solve the above technical problems, the technical solution of the present invention is:
[0009] On one hand, the present invention provides an intelligent self-closed-loop vehicle light controller SOC time-sharing multiplexing control method, which is characterized by specifically comprising the following steps:
[0010] Step S1: collecting images of road conditions in front of the vehicle through a camera;
[0011] Step S2: The intelligent driving domain controller receives the road condition image in front of the vehicle captured by the camera, processes the road condition image in front of the vehicle, and then outputs the road condition video stream information in front of the vehicle; the intelligent cockpit domain controller receives the projection animation and projection interaction instructions sent by the vehicle computer, processes the projection animation and projection interaction instructions, and then outputs the projection warning animation video stream information;
[0012] Step S3: The SOC controller receives the vehicle's forward road condition video stream and the projection warning animation video stream, performs time-division multiplexing and priority arbitration scheduling, generates HD ADB lighting control signals and projection control signals, and sends the HD ADB lighting control signals and projection control signals to the HD ADB module and projection light module, respectively.
[0013] In step S4 , the HD ADB module performs a lighting operation according to the HD ADB light control signal, and the projection lamp module performs a projection operation according to the projection control signal.
[0014] Furthermore, in step S3, the SOC controller receives the vehicle's front road condition video stream information and the projection warning animation video stream information, and then performs time-division multiplexing processing and priority arbitration scheduling processing, specifically including the following steps:
[0015] Step S31: After power-on, perform double buffer configuration and initial time slice allocation through the SOC controller;
[0016] In step S32 , the SOC controller monitors the vehicle speed. If the vehicle speed reaches a first speed threshold, the HD ADB task cycle is adjusted. If the vehicle speed is less than or equal to a second speed threshold, the projection task cycle is adjusted.
[0017] Furthermore, the calculation formula for adjusting the HD ADB task period is as follows:
[0018]
[0019] Among them, t adb It is the HD ADB task cycle after dynamic allocation of time slices;
[0020] K is the vehicle speed correction coefficient;
[0021] V obj is the relative speed of the vehicle ahead;
[0022] D safe is the safety distance threshold;
[0023] α is the weight factor;
[0024] t base The basic processing time.
[0025] Furthermore, the calculation formula for adjusting the projection task period is as follows:
[0026] t warning =β×(T frame -t adb )+γ×S anim ;
[0027] Among them, t warning The projection task cycle after dynamic allocation of time slices;
[0028] β is the projection task priority factor;
[0029] T frame is the total frame period;
[0030] t adb It is the HD ADB task cycle after dynamic allocation of time slices;
[0031] γ is the animation complexity coefficient;
[0032] S anim The number of key frames in the current animation.
[0033] Furthermore, the calculation formula for the allocation ratio of the HD ADB task period and the projection task period after the dynamic allocation of time slices is as follows:
[0034]
[0035] Among them, R is the resource allocation ratio;
[0036] t adb It is the HD ADB task cycle after dynamic allocation of time slices;
[0037] t warning The projection task cycle after dynamic allocation of time slices;
[0038] λ is the compensation coefficient;
[0039] f sensor is the image sampling frequency;
[0040] f pwm Dimming frequency for LED;
[0041] N zone The number of HD ADB pixels.
[0042] On the other hand, the present invention also provides a control system for an intelligent self-closed-loop vehicle light controller SOC time-sharing multiplexing control method, characterized in that it includes a camera, an intelligent driving domain controller, an intelligent cockpit domain controller, an SOC controller, an HDADB module and a projection lamp module;
[0043] The camera is used to collect images of road conditions in front of the vehicle;
[0044] The intelligent driving domain controller is used to receive the road condition image in front of the vehicle captured by the camera, process the road condition image in front of the vehicle, and then output the road condition video stream information in front of the vehicle;
[0045] The intelligent cockpit domain controller is used to receive the projection animation and projection interaction instructions sent by the vehicle computer, process the projection animation and projection interaction instructions, and then output projection warning animation video stream information;
[0046] The SOC controller is used to receive the video stream information of the road condition in front of the vehicle and the projection warning animation video stream information, and process the video stream information of the road condition in front of the vehicle and the projection warning animation video stream information respectively, and then generate HD ADB lighting control signals and projection control signals respectively, and send the HD ADB lighting control signals and projection control signals to the HD ADB module and the projection light module respectively.
[0047] Furthermore, the HD ADB module includes an HD ADB drive processing unit, an HD ADB driver and an HD ADB light group;
[0048] The HD ADB driver processing unit is used to receive the HD ADB light control signal, process the HD ADB light control signal, and then control the HD ADB driver according to the HD ADB light control signal;
[0049] The HD ADB driver is used to drive the HD ADB light group to light up;
[0050] The HD ADB lamp group is used for lighting.
[0051] Furthermore, the projection lamp module includes a projection drive processing unit, a projection driver and a projection lamp group;
[0052] The projection drive processing unit is used to receive a projection control signal, process the projection control signal, and then control the projection driver according to the projection control signal;
[0053] The projection driver is used to drive the projection lamp group to perform animation projection;
[0054] The projection lamp group is used for performing animation projection.
[0055] Furthermore, the HD ADB driving processing unit includes an HD ADB light shape generation module, a grayscale modulation module and a safety logic verification module;
[0056] The HD ADB light shape generation module is used to construct a high-resolution lighting spot;
[0057] The grayscale modulation module is used to independently control the grayscale value of each lighting partition;
[0058] The safety logic verification module is used to monitor driving temperature and current fluctuations.
[0059] Furthermore, the projection drive processing unit includes an RGB light mixing control module, a gradient animation engine and a low-noise current management module;
[0060] The RGB light mixing control module is used to perform color space calibration;
[0061] The gradient animation engine is used to render animation sequences of dynamic light effects;
[0062] The low-noise current management module is used to control current fluctuations.
[0063] By adopting the above technical solution, the present invention has the following beneficial effects:
[0064] By pre-processing the image of the road condition ahead of the vehicle through the intelligent driving domain controller, the image quality of the road condition ahead can be improved and the efficiency of subsequent processing can be increased. By performing projection animation format and distortion correction processing through the intelligent cockpit domain controller, it is beneficial to improve image quality and ensure the accuracy of subsequent processing. The two controllers in the traditional system are merged into one SOC controller, which effectively reduces the hardware cost of the product, reduces system power consumption, improves communication efficiency, and reduces the number of communication interface resources of the entire vehicle. In the case of reduced computing resources, the spatiotemporal synchronization of the video stream information of the road condition ahead and the video stream information of the projected warning animation is achieved through time-sharing multiplexing processing and priority arbitration scheduling processing, ensuring that the HD ADB module and the projection lamp module work together without conflict in the spatiotemporal dimension, and realizing the dynamic allocation of computing power resources of the HD ADB module and the projection lamp module according to task priority. BRIEF DESCRIPTION OF THE DRAWINGS
[0065] Figure 1 This is a principle block diagram of the intelligent self-closed-loop vehicle light controller SOC time-sharing multiplexing control system of the present invention;
[0066] Figure 2 This is a flow chart of the time-sharing multiplexing control method of the intelligent self-closed-loop vehicle light controller SOC of the present invention. DETAILED DESCRIPTION
[0067] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.
[0068] Example 1
[0069] like Figure 1As shown, this embodiment provides an intelligent self-closed-loop vehicle light controller SOC time-sharing multiplexing control system, which includes a camera, an intelligent driving domain controller, an intelligent cockpit domain controller, an SOC controller, an HD ADB module and a projection lamp module.
[0070] The camera of this embodiment is installed above the front windshield of the vehicle and is used to collect images of the road conditions in front of the vehicle.
[0071] The intelligent driving domain controller of this embodiment is included in the vehicle body system, and is used to receive the road condition image in front of the vehicle captured by the camera and perform image preprocessing on the road condition image in front of the vehicle, and then output the road condition video stream information in front of the vehicle.
[0072] The intelligent cockpit domain controller of this embodiment is included in the vehicle body system, and is used to receive and process the projection animation and projection interaction instructions sent by the vehicle computer, and then output projection warning animation video stream information.
[0073] The SOC controller of this embodiment integrates a heterogeneous computing unit (CPU + NPU) to receive and process the video stream of the road condition ahead of the vehicle and the projected warning animation video stream. It then generates HD ADB lighting control signals and projection control signals, respectively, and sends the HD ADB lighting control signals and projection control signals to the HD ADB module and projection lamp module, respectively. HD ADB refers to high-resolution adaptive high beam. At the hardware level, the two controllers in the traditional system are merged into one, forming a "dual input channel → single-chip processing → dual output channel" link mode, effectively reducing the product's hardware cost, lowering system power consumption, improving communication efficiency, and reducing the number of communication interface resources throughout the vehicle.
[0074] The HD ADB module of this embodiment includes an HD ADB driving processing unit, an HD ADB driver, and an HD ADB lamp group.
[0075] Specifically, the HD ADB driver processing unit of this embodiment is used to receive and process HD ADB lighting control signals, and then control the HD ADB driver based on the HD ADB lighting control signals. The HD ADB driver processing unit includes an HD ADB light pattern generation module, a grayscale modulation module, and a safety logic verification module. The HD ADB light pattern generation module uses an aspherical optical system to create a high-resolution illumination spot, supporting precise area illumination with an illumination intensity greater than 100 lx. The grayscale modulation module can process over 16,000 pixels and independently control each lighting zone at a frequency greater than or equal to 2 kHz, achieving dimming with a duty cycle accuracy of 0.1%. The safety logic verification module monitors driver temperature and current fluctuations in real time, complying with ISO 26262 ASIL-B functional safety level.
[0076] Specifically, the input of the HD ADB driver in this embodiment is connected to the output of the HD ADB driver processing unit. The HD ADB driver is used to illuminate the HD ADB lamp assembly and can drive a 120W Micro LED light source chip to output a total luminous flux of ≥3000lm. The HD ADB driver features triple protection circuits for overvoltage, overcurrent, and overtemperature protection, and operates within a -40°C to +105°C temperature range.
[0077] Specifically, the HD ADB lamp group of this embodiment is used for lighting.
[0078] The projection lamp module of this embodiment includes a projection drive processing unit, a projection driver, and a projection lamp assembly.
[0079] Specifically, the projection drive processing unit of this embodiment is used to receive and process projection control signals, and then control the projection driver based on the projection control signals. The projection drive processing unit includes an RGB light mixing control module, a gradient animation engine, and a low-noise current management module. The RGB light mixing control module uses CIE 1931 standard color space calibration and has a color accuracy of ΔE < 1.5; the gradient animation engine supports 30fps dynamic light effect sequence rendering with a response delay of ≤ 50ms; and the low-noise current management module uses a ripple suppression circuit to control current fluctuations within the ±5mA range.
[0080] Specifically, the input of the projection driver in this embodiment is connected to the output of the projection driver processing unit. The projection driver is used to drive the projection lamp assembly for animation projection. It can drive a multi-channel RGB LED lamp assembly with a maximum output of 12W / 600lm. The projection driver also supports LVDS and CAN FD dual-protocol control interfaces.
[0081] Specifically, the projection lamp assembly of this embodiment is used for projecting warning animations.
[0082] Example 2
[0083] like Figure 2 As shown, this embodiment provides a control method for the intelligent self-closed-loop vehicle light controller SOC time-sharing multiplexing control system as in the first embodiment, specifically comprising the following steps:
[0084] Step S1: Capture an image of the road condition in front of the vehicle through a camera.
[0085] Step S2: The intelligent driving domain controller receives the road condition image in front of the vehicle captured by the camera and performs image preprocessing on the road condition image in front of the vehicle, and then outputs the video stream information of the road condition in front of the vehicle; the vehicle computer generates projection animation and projection interaction instructions according to the user's settings, and the intelligent cockpit domain controller receives the projection animation and projection interaction instructions sent by the vehicle computer and performs animation format and distortion correction processing according to the projection animation and projection interaction instructions, and then outputs the projection warning animation video stream information.
[0086] Specifically, image preprocessing includes noise reduction, format conversion, and feature extraction. Noise reduction can use Gaussian filtering to improve image quality; format conversion can use grayscale and binarization methods to adapt to different application scenarios and device requirements; feature extraction can use convolutional neural networks to extract useful information from the image and improve the efficiency of subsequent processing. Animation format processing refers to the conversion and optimization of the animation format to ensure that the animation content can be displayed clearly and smoothly on the projection device. Distortion correction processing can use radial distortion correction and tangential distortion correction, which is beneficial to improving image quality and ensuring the accuracy of subsequent processing.
[0087] In step S3, the SOC controller receives the video stream information of the road condition in front of the vehicle and the video stream information of the projected warning animation, and then performs time-division multiplexing and priority arbitration scheduling to generate HD ADB lighting control signals and projection control signals, respectively, and sends the HD ADB lighting control signals and projection control signals to the HD ADB module and the projection light module, respectively.
[0088] The two controllers in the traditional automotive intelligent headlight system are merged into a single SOC controller. With reduced computing resources, time-sharing multiplexing and priority arbitration scheduling are used to achieve spatiotemporal synchronization of the forward road condition video stream information and the projected warning animation video stream information. This ensures that the HD ADB module and the projection lamp module work together without conflict in the spatiotemporal dimensions, and realizes dynamic allocation of computing power resources between the HD ADB module and the projection lamp module according to task priority.
[0089] Specifically, the SOC controller receives the vehicle's front road condition video stream information and the projection warning animation video stream information, and then performs time-division multiplexing processing and priority arbitration scheduling processing, which specifically includes the following steps:
[0090] Step S31: After power-on, the SOC controller performs double buffer configuration and initial time slice allocation. The initial task period of HDADB is defined as 16.6ms, corresponding to a frequency of 60Hz, and the initial task period of projection is defined as 33.3ms, corresponding to a frequency of 30Hz.
[0091] Step S32: The vehicle speed is monitored by the SOC controller and used as the basis for arbitration. If the vehicle speed reaches a first speed threshold, the HD ADB task period is adjusted; if the vehicle speed is less than or equal to a second speed threshold, the projection task period is adjusted.
[0092] Specifically, the vehicle speed can be obtained through the intelligent driving domain controller, which then sends the speed information to the SOC controller via the CAN interface. The first speed threshold and the second speed threshold are set according to user requirements, and the first speed threshold should be greater than the second speed threshold. When the vehicle is at high speed, more attention is paid to vehicle driving safety, so the HD ADB task cycle should be increased and HD ADB computing power should be prioritized; when the vehicle is at low speed, the interactive demand is high, so resources should be tilted towards animation projection and the projection task cycle should be increased. In this embodiment, the first speed threshold can be set to 50km / h and the second speed threshold can be set to 30km / h.
[0093] Specifically, the calculation formula for adjusting the HD ADB task period is as follows:
[0094]
[0095] Among them, t adb It is the HD ADB task cycle after dynamic allocation of time slices;
[0096] K is the vehicle speed correction coefficient, which is set to 0.8 to 1.2;
[0097] V obj is the relative speed of the vehicle ahead;
[0098] D safe is the safety distance threshold, the default value is 100m;
[0099] α is the weight factor, and the default value is 0.6;
[0100] t baseThe basic processing time has a preset value of 1.2ms, which is the minimum time unit allocated by the operating system or scheduling algorithm for each process or thread. This time unit is the basic unit for the scheduling algorithm to allocate and manage time slices, and can be implemented through the MCU timer.
[0101] Specifically, the calculation formula for adjusting the projection task period is as follows:
[0102] t warning =β×(T frame -t adb )+γ×S anim ;
[0103] Among them, t warning The projection task cycle after dynamic allocation of time slices;
[0104] β is the projection task priority factor, with a preset value of 0.3 to 0.7. It is used to determine the priority between multiple tasks and ensure that resources and control rights can be effectively allocated when executing multiple tasks;
[0105] T frame is the total frame period, which represents the time required to generate or transmit all frames. The specific value varies depending on the application scenario. In this embodiment, the total frame period is set to 10ms;
[0106] t adb It is the HD ADB task cycle after dynamic allocation of time slices;
[0107] γ is the animation complexity coefficient, which is preset according to actual needs and scenarios;
[0108] S anim The number of key frames in the current animation, which is determined by the complexity and duration of the animation.
[0109] Specifically, the calculation formula for the allocation ratio of the HD ADB task cycle and the projection task cycle after dynamic allocation of time slices is as follows:
[0110]
[0111] Where R is the resource allocation ratio, which represents the allocation ratio of HD ADB task cycle and projection task cycle;
[0112] t adb It is the HD ADB task cycle after dynamic allocation of time slices;
[0113] t warning The projection task cycle after dynamic allocation of time slices;
[0114] λ is the real-time compensation coefficient, which is used to dynamically compensate for the system response delay and is set to 1.05-1.2;
[0115] f sensor The sampling frequency of the image determines the number of sampling points in each dimension of the image, thus affecting the resolution and quality of the image;
[0116] f pwm The LED dimming frequency represents the frequency of the signal in PWM dimming technology. PWM dimming adjusts the brightness by controlling the LED's switching frequency and duty cycle (i.e., the proportion of time the LED is on in each cycle). It can be obtained through calibration and has a typical value of 1kHz.
[0117] N zone The number of HD ADB pixels, typically greater than 16,000 pixels.
[0118] In step S4 , the HD ADB module performs a lighting operation according to the HD ADB light control signal, and the projection lamp module performs a projection operation according to the projection control signal.
[0119] The working principle of the present invention is as follows:
[0120] The camera captures images of road conditions in front of the vehicle; the intelligent driving domain controller receives the images of road conditions in front of the vehicle captured by the camera, processes the images of road conditions in front of the vehicle, and then outputs video stream information of road conditions in front of the vehicle; the intelligent cockpit domain controller receives projection animation and projection interaction instructions sent by the vehicle computer, processes the projection animation and projection interaction instructions, and then outputs projection warning animation video stream information; the SOC controller receives the video stream information of road conditions in front of the vehicle and the projection warning animation video stream information, and then performs time-sharing multiplexing processing and priority arbitration scheduling processing to generate HD ADB lighting control signals and projection control signals respectively, and sends the HD ADB lighting control signals and projection control signals to the HD ADB module and projection lamp module respectively; the HD ADB module performs lighting operations according to the HD ADB lighting control signals, and the projection lamp module performs projection operations according to the projection control signals.
[0121] By pre-processing the image of the road condition ahead of the vehicle through the intelligent driving domain controller, the image quality of the road condition ahead can be improved and the efficiency of subsequent processing can be increased. By performing projection animation format and distortion correction processing through the intelligent cockpit domain controller, it is beneficial to improve image quality and ensure the accuracy of subsequent processing. The two controllers in the traditional system are merged into one SOC controller, which effectively reduces the hardware cost of the product, reduces system power consumption, improves communication efficiency, and reduces the number of communication interface resources of the entire vehicle. In the case of reduced computing resources, the spatiotemporal synchronization of the video stream information of the road condition ahead and the video stream information of the projected warning animation is achieved through time-sharing multiplexing processing and priority arbitration scheduling processing, ensuring that the HD ADB module and the projection lamp module work together without conflict in the spatiotemporal dimension, and realizing the dynamic allocation of computing power resources of the HD ADB module and the projection lamp module according to task priority.
[0122] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An intelligent self-closed-loop vehicle light controller SOC time-sharing multiplexing control method, characterized in that: The specific steps include: Step S1: collecting images of road conditions in front of the vehicle through a camera; Step S2: The intelligent driving domain controller receives the road condition image in front of the vehicle captured by the camera, processes the road condition image in front of the vehicle, and then outputs the road condition video stream information in front of the vehicle; The intelligent cockpit domain controller receives and processes the projection animation and projection interaction instructions sent by the vehicle computer, and then outputs the projection warning animation video stream information; Step S3: The SOC controller receives the vehicle's forward road condition video stream and the projection warning animation video stream, performs time-division multiplexing and priority arbitration scheduling, generates HD ADB lighting control signals and projection control signals, and sends the HD ADB lighting control signals and projection control signals to the HD ADB module and projection light module, respectively. In step S4 , the HD ADB module performs a lighting operation according to the HD ADB light control signal, and the projection lamp module performs a projection operation according to the projection control signal.
2. The intelligent self-closed-loop SOC time-sharing multiplexing control method of vehicle light controller according to claim 1 is characterized in that: In step S3, the SOC controller receives the vehicle's front road condition video stream information and the projection warning animation video stream information, and then performs time-division multiplexing processing and priority arbitration scheduling processing, specifically including the following steps: Step S31: After power-on, perform double buffer configuration and initial time slice allocation through the SOC controller; In step S32 , the SOC controller monitors the vehicle speed. If the vehicle speed reaches a first speed threshold, the HD ADB task cycle is adjusted. If the vehicle speed is less than or equal to a second speed threshold, the projection task cycle is adjusted.
3. The intelligent self-closed-loop vehicle light controller SOC time-sharing multiplexing control method according to claim 2 is characterized in that: The calculation formula for adjusting the HDADB task period is as follows: Among them, t adb It is the HDADB task cycle after dynamic allocation of time slices; K is the vehicle speed correction coefficient; V obj is the relative speed of the vehicle ahead; D safe is the safety distance threshold; α is the weight factor; t base The basic processing time.
4. The intelligent self-closed-loop vehicle light controller SOC time-sharing multiplexing control method according to claim 3 is characterized in that: The calculation formula for adjusting the projection task period is as follows: t warning =β×(T frame -t adb )+γ×S anim ; Among them, t warning The projection task cycle after dynamic allocation of time slices; β is the projection task priority factor; T frame is the total frame period; t adb It is the HDADB task cycle after dynamic allocation of time slices; γ is the animation complexity coefficient; S anim The number of key frames in the current animation.
5. The intelligent self-closed-loop vehicle light controller SOC time-sharing multiplexing control method according to claim 4 is characterized in that: The calculation formula for the allocation ratio of the HDADB task cycle and the projection task cycle after the dynamic allocation of time slices is as follows: Among them, R is the resource allocation ratio; t adb It is the HDADB task cycle after dynamic allocation of time slices; t warning The projection task cycle after dynamic allocation of time slices; λ is the compensation coefficient; f sensor is the image sampling frequency; f pwm Dimming frequency for LED; N zone The number of HDADB pixels.
6. A control system using the intelligent self-closed-loop vehicle light controller SOC time-sharing multiplexing control method according to any one of claims 1 to 5, characterized in that: It includes cameras, intelligent driving domain controllers, intelligent cockpit domain controllers, SOC controllers, HDADB modules and projection light modules; The camera is used to collect images of road conditions in front of the vehicle; The intelligent driving domain controller is used to receive the road condition image in front of the vehicle captured by the camera, process the road condition image in front of the vehicle, and then output the road condition video stream information in front of the vehicle; The intelligent cockpit domain controller is used to receive the projection animation and projection interaction instructions sent by the vehicle computer, process the projection animation and projection interaction instructions, and then output projection warning animation video stream information; The SOC controller is used to receive the video stream information of the road condition in front of the vehicle and the projection warning animation video stream information, and process the video stream information of the road condition in front of the vehicle and the projection warning animation video stream information respectively, and then generate HDADB lighting control signals and projection control signals respectively, and send the HDADB lighting control signals and projection control signals to the HDADB module and the projection light module respectively.
7. The control system according to claim 6, characterized in that: The HD ADB module includes an HD ADB drive processing unit, an HD ADB driver and an HD ADB light group; The HD ADB driver processing unit is used to receive the HD ADB light control signal, process the HD ADB light control signal, and then control the HD ADB driver according to the HD ADB light control signal; The HDADB driver is used to drive the HD ADB lamp group to light up; The HDADB lamp group is used for lighting.
8. The control system according to claim 6, characterized in that: The projection lamp module includes a projection drive processing unit, a projection driver and a projection lamp group; The projection drive processing unit is used to receive a projection control signal, process the projection control signal, and then control the projection driver according to the projection control signal; The projection driver is used to drive the projection lamp group to perform animation projection; The projection lamp group is used for performing animation projection.
9. The control system according to claim 7, characterized in that: The HD ADB driving processing unit includes an HDADB light shape generation module, a grayscale modulation module and a safety logic verification module; The HDADB light shape generation module is used to construct a high-resolution illumination spot; The grayscale modulation module is used to independently control the grayscale value of each lighting partition; The safety logic verification module is used to monitor driving temperature and current fluctuations.
10. The control system according to claim 8, characterized in that: The projection drive processing unit includes an RGB light mixing control module, a gradient animation engine and a low-noise current management module; The RGB light mixing control module is used to perform color space calibration; The gradient animation engine is used to render animation sequences of dynamic light effects; The low-noise current management module is used to control current fluctuations.