Self-closed-loop automobile headlamp system for rainy day scene and control method

Abstract

The invention discloses a self-closed-loop automobile headlamp system aiming at a rainy day scene and a control method, and belongs to the technical field of automobile illumination. The self-closed-loop automobile headlamp system for the rainy day scene comprises a camera module, an SOC control board, an MCU drive board, a MicroLED light source board, a dimming motor and a fan. The camera module is used for collecting an environment video signal in front of the vehicle; the SOC control panel is used for judging whether the vehicle is in a rainy environment or not and judging the current road condition information of the vehicle; the MCU driving board is used for receiving an SPI signal of the SOC control board and a vehicle body CAN signal, judging the scene mode where the vehicle body is located, sending the SPI signal to the MicroLED light source board, controlling the dimming motor to rotate and controlling the rotating speed of the fan. According to the self-closed-loop automobile headlamp system for the rainy day scene and the control method, the scattering effect of water vapor on light rays in the rainy day environment can be effectively restrained, local reinforcement of the light rays in the lane line range is achieved, the driving safety is improved, and the communication interaction capacity of the whole automobile is enhanced.

Description

Technical Field

[0001] The invention relates to a self-closed-loop automobile headlamp system and a control method for rainy day scenes, belonging to the technical field of automobile lighting. Background Art

[0002] At present, water vapor and rain will adhere to the car's lampshade on rainy days. In order to weaken the impact of rainy days, automotive engineers have developed fog lights. The front fog lights are usually yellowish, and the light is scattered downwards, which is used for auxiliary lighting and warning the front at the same time; the rear fog lights are red, and the light is scattered parallel, which is mainly used to warn the rear and increase the visible range of the rear. Fog lights can provide stronger and more penetrating light to help drivers see the road ahead and better warn the vehicles behind. Modern car headlights have also added intelligent control, such as automatically sensing the amount of rain and light changes to adjust the brightness and angle of the headlights to meet different driving needs in rainy days.

[0003] In the existing technology, the penetration of LED light sources in car headlights is relatively weak. When encountering harsh environments such as rainy days and foggy days, the water vapor on the lampshade will cause the light to scatter, and the light reaching the ground will be weakened. Since there is water vapor on the ground, the light reaching the ground is scattered to other directions, and only a part of it returns to the driver's eyes. The driver will feel that the lighting brightness in front of the car is not enough, and he can neither see the vehicles and pedestrians in front nor the lanes on the road clearly, which is very likely to cause traffic accidents.

[0004] Secondly, the main function of the front fog lights is to remind pedestrians in front, and the function of the rear fog lights is to remind traffic participants behind. Generally speaking, the fog lights are to remind others, and cannot provide better lighting conditions for the current driver, nor can they fundamentally reduce the occurrence of traffic accidents.

[0005] Furthermore, although modern car headlights have added intelligent control and can adaptively adjust the angle and brightness of the headlights according to the amount of rainfall and the brightness of the ambient light, the higher the brightness, the more severe the light scattering, and the final lighting effect is still relatively weak. Moreover, the angle adjustment can only change the front and rear lighting length of the light, and cannot adjust the left and right lighting range of the light.

[0006] In addition, it is difficult for current cars to achieve information exchange between cars and drivers, drivers and other traffic participants, and cars and other traffic participants. Headlights, as the "eyes" of the car, are no longer satisfied with the simple function of lighting. More and more users need headlights with interactive functions, but the lamps currently on the market can hardly meet this demand. Summary of the invention

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a self-closed-loop automobile headlamp system and control method for rainy day scenes, which can effectively suppress the scattering effect of water vapor on light in rainy environment. Only one high-pixel MicroLED light source is needed to change the width and length range of the lamp lighting, simplify the structure of the headlamp, and realize local enhancement of the light in the lane line range, appropriately enhance the lighting range of the headlamp, weaken the impact of car driving in rainy environment, improve the driving safety of the driver, and enhance the communication and interaction capabilities of the whole vehicle, truly realizing the intelligence and interactivity of the headlights.

[0008] In order to solve the above technical problems, the technical solution of the present invention is: On one hand, the present invention provides a self-closed-loop automobile headlight system for rainy day scenes, which includes a camera module, a SOC control board, an MCU driver board, a MicroLED light source board, a dimming motor and a fan; The camera module is used to collect the environmental video signal in front of the vehicle in real time and transmit it to the SOC control board through SPI communication; The SOC control board is used to receive the environmental video signal transmitted by the camera module in real time, determine whether the vehicle is currently in a rainy environment, and determine the current road condition information of the vehicle, and then transmit the weather information and road condition information to the MCU driver board through SPI communication; The MCU driver board is used to receive the SPI signal and the vehicle body CAN signal transmitted by the SOC control board in real time, determine the scene mode of the vehicle body, and then send the SPI signal to the MicroLED light source board according to the scene mode of the vehicle body, and control the rotation of the dimming motor and the fan speed according to the SPI signal transmitted by the SOC control board; The MicroLED light source board is used to perform light display according to the SPI signal sent by the MCU driver board; The dimming motor is used to adjust the light of the MicroLED light source board; The fan is used for cooling the headlight.

[0009] Furthermore, the MCU driving board includes a temperature sensor, and the temperature sensor is used to sense the temperature inside the headlamp.

[0010] Furthermore, the current road condition information of the vehicle includes whether the vehicle passes through an intersection, whether the vehicle passes through a narrow road, whether the vehicle needs to give way to pedestrians, and the width of the lane line.

[0011] Further, the scene mode of the vehicle body includes a rainy scene mode and a normal scene mode; The rainy day scene modes include rainy day welcoming mode, rainy day farewell mode and lane line assist mode; The common scene modes include common welcoming mode, common farewell mode, pedestrian courtesy mode, intersection assistance mode, ACC cruise speed prompt mode, narrow road projection mode, anti-theft alarm mode and common high and low beam mode.

[0012] Furthermore, it also includes a car screen, which is used to display video according to the environmental video signal that has been processed by the SOC control board for rain removal.

[0013] Another aspect of the present invention provides a control method for a self-closed-loop automobile headlight system for rainy day scenes, which comprises the following steps: Step S1, the camera module collects the environmental video signal in front of the vehicle and transmits it to the SOC control board through SPI communication; Step S2, the SOC control board determines whether it is currently in a rainy environment, if so, jumps to step S3, if not, jumps to step S6; Step S3: The SOC control board performs rain removal processing on the environmental video data; Step S4, the SOC control board informs the MCU driver board of the current road condition of the vehicle through SPI communication, and at the same time, the SOC control board transmits the environmental video signal after rain removal processing to the vehicle screen for video display; Step S5, the MCU driver board turns on the rainy day scene mode, controls the dimming motor, the MicroLED light source board, and the fan through SPI communication, and then the MicroLED light source board displays the pattern of the rainy day scene mode; Step S6, the SOC control board informs the MCU driver board of the current road condition of the vehicle through SPI communication; Step S7, the MCU driver board turns on the normal scene mode, controls the dimming motor, MicroLED light source board, and fan through SPI communication, and then the MicroLED light source board displays the pattern of the normal scene mode.

[0014] Further, in step S5, the MCU driver board turns on the rainy day scene mode, controls the dimming motor, the MicroLED light source board, and the fan through SPI communication, and then the MicroLED light source board displays the pattern of the rainy day scene mode, which specifically includes the following steps: Step S51, the MCU driver board transmits information back through the SOC control board, and uses SPI communication to adjust the dimming motor; Step S52, the MCU driver board monitors the temperature through the temperature sensor, and controls the fan speed by using a PWM signal driving method according to the temperature; Step S53: The MicroLED light source panel displays a pattern of a rainy day scene mode.

[0015] Further, in step S7, the MCU driver board turns on the normal scene mode, controls the dimming motor, the MicroLED light source board, and the fan through SPI communication, and then the MicroLED light source board displays the pattern of the normal scene mode, which specifically includes the following steps: Step S71, the MCU driver board transmits information back through the SOC control board, and uses SPI communication to adjust the dimming motor; Step S72, the MCU driver board monitors the temperature through the temperature sensor, and controls the fan speed by using a PWM signal driving method according to the temperature; Step S73: The MicroLED light source panel displays a pattern in a normal scene mode.

[0016] Further, in step S2, the SOC control board determines whether it is currently in a rainy environment, which specifically includes the following steps: The SOC control board receives the environmental video signal sent by the camera module, identifies the video image signal of the first frame in the timeline, and stores the video signal data that cannot be processed in time into the DDR3 of the SOC control board.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects: The use of MicroLED light sources with a brightness of more than 85Mnit in headlights can effectively suppress the scattering effect of water vapor on light in rainy environments. Since each pixel of the MicroLED light source can be controlled individually, only one high-pixel MicroLED light source is needed to change the width and length of the lighting of the lamp. At the same time, the camera module can perceive the surrounding environment in real time, and adjust the brightness, lighting width, and lighting length of the headlight in real time according to the perception results to achieve a self-closed loop effect. With the combination of MicroLED light sources and modern intelligent control technology, drivers can identify lane lines in rainy driving environments and locally enhance the light in the lane line range. At the same time, the lighting range of the headlights is appropriately enhanced, which weakens the impact of car driving in rainy environments and improves the driver's driving safety. For other vehicle use environments, MicroLED light sources can cast patterns of any shape on the ground, enhancing the communication and interaction capabilities of the entire vehicle, and truly realizing the intelligence and interactivity of headlights. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a principle block diagram of the self-closed-loop automobile headlight system for rainy day scenes of the present invention; Figure 2 The schematic diagram of the self-closed-loop automobile headlight system for rainy day scenes of the present invention; Figure 3The present invention is a flow chart of a control method of a self-closed-loop automobile headlight system for rainy day scenes. DETAILED DESCRIPTION

[0019] 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.

[0020] Embodiment 1 like Figure 1 As shown, this embodiment provides a self-closed-loop automobile headlight system for rainy day scenes, which includes a camera module, a SOC control board, an MCU driver board, a MicroLED light source board, a dimming motor, a fan and a car screen; The camera module is used to collect the environmental video signal in front of the vehicle in real time and transmit it to the SOC control board through SPI communication; The SOC control board is used to receive the environmental video signal transmitted by the camera module in real time, determine whether the vehicle is currently in a rainy environment, and determine the current road condition information of the vehicle, and then transmit the weather information and road condition information to the MCU driver board through SPI communication; The MCU driver boards of the left and right lamps are used to receive the SPI signals and vehicle body CAN signals transmitted by the SOC control board in real time, determine the scene mode the vehicle body is in, and then send SPI signals to the MicroLED light source board according to the scene mode the vehicle body is in, and control the rotation of the dimming motor and the fan speed according to the SPI signals transmitted by the SOC control board; The MicroLED light source board is used to display lights according to the SPI signal sent by the MCU driver board. The MicroLED light source is a pixel array display composed of LED chips with a size less than 50 microns combined with an active drive array. It is a miniaturization and array of traditional LEDs. The dimming motor is used to adjust the light of the MicroLED light source board; The fan is used to dissipate heat from the headlight; The car screen is used to display video based on the ambient video signal that has been de-rained by the SOC control board.

[0021] like Figure 2 As shown, the MCU driver board of this embodiment includes a temperature sensor, which is used to sense the temperature inside the headlight in real time. The MCU driver board outputs a PWM signal to the fan according to the sensed temperature. When the temperature is too high, the larger the PWM value, the faster the fan speed.

[0022] like Figure 2 As shown, the MCU driver board of this embodiment is powered by the 12V DC power supply of the vehicle body, and the SOC control board is powered by the 12V DC power supply provided by the MCU driver board.

[0023] The current road condition information of the vehicle in this embodiment includes whether the vehicle passes through an intersection, whether the vehicle passes through a narrow road, whether the vehicle needs to give way to pedestrians, and the width of the lane line.

[0024] The scene modes of the vehicle body in this embodiment include a rainy scene mode and a normal scene mode; Rainy day scene modes include Rainy Day Welcome Mode, Rainy Day Farewell Mode and Lane Line Assist Mode; Normal scene modes include normal welcoming mode, normal farewell mode, pedestrian courtesy mode, intersection assist mode, ACC cruise speed reminder mode, narrow road projection mode, anti-theft alarm mode and normal high and low beam mode.

[0025] Specifically, the MCU driver board identifies the scene mode of the vehicle body based on the following signals: Rainy day scene modes include: Rainy day welcome mode: vehicle unlocking signal (body signal) + weather signal is rainy day (SPI signal sent by SOC control board); Rainy day farewell mode: vehicle lock signal (body signal) + weather signal is rainy day (SPI signal sent by SOC control board); Lane line assist mode: weather signal is rainy day (SPI signal sent by SOC control board) + lane line width signal (SPI signal sent by SOC control board) + ambient light brightness signal (SPI signal sent by SOC control board) + vehicle speed greater than 0km / h (body signal).

[0026] Common scene modes include: Normal welcome mode: vehicle unlocking signal (body signal) + weather signal is not rainy (SPI signal sent by SOC control board); Normal farewell mode: vehicle lock signal (body signal) + weather signal is not rainy (SPI signal sent by SOC control board); Pedestrian courtesy mode: vehicle speed is 0km / h (body signal) + vehicle gear signal is D gear (body signal) + brake signal is activated (body signal) + pedestrian crossing mode recognition signal (SPI signal sent by SOC control board) + ambient light brightness signal (SPI signal sent by SOC control board); Intersection assistance mode: weather signal is not rainy (SPI signal sent by SOC control board) + intersection identification signal (SPI signal sent by SOC control board) + ambient light brightness signal (SPI signal sent by SOC control board) + vehicle speed signal (body signal) + brake signal activation (body signal); ACC cruise speed prompt mode: weather signal is not rainy (SPI signal sent by SOC control board) + ACC activation signal (body signal) + vehicle speed is greater than 60km / h (body signal) + distance to the vehicle in front is less than 100m (body signal); Narrow road projection mode: weather signal is not rainy (SPI signal sent by SOC control board) + narrow road identification signal (SPI signal sent by SOC control board) + vehicle speed signal (vehicle body signal); Anti-theft alarm mode: Anti-theft alarm activation signal (body signal); Normal high and low beam mode: weather signal is not rainy (SPI signal sent by SOC control board) + ambient light brightness signal (SPI signal sent by SOC control board) + low beam or high beam on signal (body signal).

[0027] Specifically, when in different scene modes, the headlights will display the following different scene animation lights: When in Rain scene mode: Rainy Day Welcome Mode: After the vehicle is unlocked, the headlights will project weather and temperature animations on the front of the car; Rainy Day Farewell Mode: After the vehicle is locked, the headlights will project weather and temperature animations on the front of the car; Lane Assist Mode: When the vehicle is driving, the headlights will concentrate the light energy mainly near the lane lines to enhance the display of the lane lines. At the same time, they will provide a brightness second only to the enhanced light beam within the lane lines to illuminate the road conditions in front of the vehicle. Finally, there will be a slightly weaker light beam in front of the vehicle. This light beam has a wide lighting range to alert other traffic participants.

[0028] When in Normal scene mode: Normal welcome mode: After the vehicle is unlocked, the headlights will project a welcome animation at the front of the car; Normal farewell mode: After the vehicle is locked, the headlights will project a farewell animation at the front of the car; Pedestrian courtesy mode: When the vehicle recognizes a pedestrian passing in front and the driver intends to give way to the pedestrian, the headlights will project a zebra crossing animation in front of the pedestrian; Intersection Assist Mode: When the driver drives the vehicle through an intersection, the headlights will project a warning pattern in front of the intersection; ACC cruise speed prompt mode: When the driver turns on ACC cruise, the vehicle speed is greater than 60km / h, and the distance to the vehicle in front is less than 100m, the headlights will project the distance to the vehicle in front in front of the vehicle; Narrow Road Projection Mode: When the driver enters a narrow road, the headlights project a light blanket the same width as the vehicle body; Anti-theft alarm mode: When the anti-theft alarm function is triggered, the headlights will project a warning pattern in front of the vehicle; Normal high and low beam mode: the same as the high and low beam of ordinary vehicles.

[0029] Embodiment 2 like Figure 3 As shown, this embodiment provides a control method for a self-closed-loop automobile headlight system for rainy day scenes as in Embodiment 1, which comprises the following steps: Step S1, the camera module collects the environmental video signal in front of the vehicle and transmits it to the SOC control board through SPI communication; Step S2, the SOC control board determines whether it is currently in a rainy environment through a video processing algorithm, if so, jumps to step S3, if not, jumps to step S6; Step S3: The SOC control board performs rain removal processing on the environmental video data; Step S4, the SOC control board informs the MCU driver board of the current road condition of the vehicle through SPI communication, and at the same time, the SOC control board transmits the environmental video signal after rain removal to the vehicle screen for video display to assist the driver in driving; Step S5, the MCU driver board turns on the rainy day scene mode, controls the dimming motor, the MicroLED light source board, and the fan through SPI communication, and then the MicroLED light source board displays the pattern of the rainy day scene mode; Step S6, the SOC control board informs the MCU driver board through SPI communication not to enter the rainy scene mode, and informs the MCU driver board of the current road condition information of the vehicle. The SOC control board will not transmit the environmental video data to the vehicle screen for video display; Step S7, the MCU driver board turns on the normal scene mode, controls the dimming motor, MicroLED light source board, and fan through SPI communication, and then the MicroLED light source board displays the pattern of the normal scene mode.

[0030] In step S2 of this embodiment, the SOC control board determines whether it is currently in a rainy environment, which specifically includes the following steps: The SOC control board receives the environmental video signal sent by the camera module in real time, identifies the first frame of video image signal on the timeline, and stores the video signal data that cannot be processed in time into the DDR3 of the SOC control board. To ensure that DDR3 is not full, the image data processing speed of the SOC control board should be faster than the speed at which the camera module transfers data to DDR3.

[0031] In step S5 of this embodiment, the MCU driver board turns on the rainy day scene mode, controls the dimming motor, the MicroLED light source board, and the fan through SPI communication, and then the MicroLED light source board displays the pattern of the rainy day scene mode, which specifically includes the following steps: Step S51, the MCU driver board transmits information back through the SOC control board, and uses SPI communication to adaptively adjust the dimming motor; Step S52, the MCU driver board monitors the temperature in real time through the temperature sensor, and controls the fan speed by using a PWM signal driving method according to the temperature; Step S53: The MicroLED light source panel displays a pattern of a rainy day scene mode.

[0032] In step S7 of this embodiment, the MCU driver board turns on the normal scene mode, controls the dimming motor, the MicroLED light source board, and the fan through SPI communication, and then the MicroLED light source board displays the pattern of the normal scene mode, which specifically includes the following steps: Step S71, the MCU driver board transmits information back through the SOC control board, and uses SPI communication to adaptively adjust the dimming motor; Step S72, the MCU driver board monitors the temperature in real time through the temperature sensor, and controls the fan speed by using a PWM signal driving method according to the temperature; Step S73: The MicroLED light source panel displays a pattern in a normal scene mode.

[0033] The working principle of the present invention is as follows: The camera module collects the environmental video signal in front of the vehicle and transmits it to the SOC control board through SPI communication. The SOC control board determines whether it is currently in a rainy environment. If so, the SOC control board removes rain from the environmental video data. The SOC control board informs the MCU driver board of the current road condition of the vehicle through SPI communication. The MCU driver board turns on the rainy scene mode and controls the dimming motor, MicroLED light source board, and fan through SPI communication. Then the MicroLED light source board displays the pattern of the rainy scene mode. If not, the SOC control board informs the MCU driver board not to enter the rainy scene mode and informs the MCU driver board of the current road condition of the vehicle through SPI communication. The MCU driver board turns on the normal scene mode and controls the dimming motor, MicroLED light source board, and fan through SPI communication. Then the MicroLED light source board displays the pattern of the normal scene mode.

[0034] The use of MicroLED light sources with a brightness of more than 85Mnit in headlights can effectively suppress the scattering effect of water vapor on light in rainy environments. Since each pixel of the MicroLED light source can be controlled individually, only one high-pixel MicroLED light source is needed to change the width and length of the lighting of the lamp. At the same time, the camera module can perceive the surrounding environment in real time, and adjust the brightness, lighting width, and lighting length of the headlight in real time according to the perception results to achieve a self-closed loop effect. With the combination of MicroLED light sources and modern intelligent control technology, drivers can identify lane lines in rainy driving environments and locally enhance the light in the lane line range. At the same time, the lighting range of the headlights is appropriately enhanced, which weakens the impact of car driving in rainy environments and improves the driver's driving safety. For other vehicle use environments, MicroLED light sources can cast patterns of any shape on the ground, enhancing the communication and interaction capabilities of the entire vehicle, and truly realizing the intelligence and interactivity of headlights.

[0035] 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 protection scope of the present invention.

Claims

1. A self-closed-loop automobile headlight system for rainy day scenes, characterized in that: It includes camera module, SOC control board, MCU driver board, MicroLED light source board, dimming motor and fan; The camera module is used to collect the environmental video signal in front of the vehicle in real time and transmit it to the SOC control board through SPI communication; The SOC control board is used to receive the environmental video signal transmitted by the camera module in real time, determine whether the vehicle is currently in a rainy environment, and determine the current road condition information of the vehicle, and then transmit the weather information and road condition information to the MCU driver board through SPI communication; The MCU driver board is used to receive the SPI signal and the vehicle body CAN signal transmitted by the SOC control board in real time, determine the scene mode of the vehicle body, and then send the SPI signal to the MicroLED light source board according to the scene mode of the vehicle body, and control the rotation of the dimming motor and the fan speed according to the SPI signal transmitted by the SOC control board; The MicroLED light source board is used to perform light display according to the SPI signal sent by the MCU driver board; The dimming motor is used to adjust the light of the MicroLED light source board; The fan is used for cooling the headlight.

2. The self-closed-loop automobile headlight system for rainy day scenes according to claim 1 is characterized in that: The MCU driving board includes a temperature sensor, and the temperature sensor is used to sense the temperature inside the headlamp.

3. The self-closed-loop automobile headlight system for rainy day scenes according to claim 2 is characterized in that: The current road condition information of the vehicle includes whether the vehicle passes through an intersection, whether the vehicle passes through a narrow road, whether the vehicle needs to give way to pedestrians, and the width of the lane line.

4. The self-closed-loop automobile headlight system for rainy day scenes according to claim 3 is characterized in that: The scene mode of the vehicle body includes a rainy scene mode and a normal scene mode; The rainy day scene modes include rainy day welcoming mode, rainy day farewell mode and lane line assist mode; The common scene modes include common welcoming mode, common farewell mode, pedestrian courtesy mode, intersection assistance mode, ACC cruise speed prompt mode, narrow road projection mode, anti-theft alarm mode and common high and low beam mode.

5. The self-closed-loop automobile headlight system for rainy day scenes according to claim 4 is characterized in that: It also includes a vehicle screen, which is used to display video based on the ambient video signal that has been processed by the SOC control board for rain removal.

6. A control method for a self-closed-loop automobile headlamp system for rainy day scenes as claimed in any one of claims 1 to 5, characterized in that: It includes the following steps: Step S1, the camera module collects the environmental video signal in front of the vehicle and transmits it to the SOC control board through SPI communication; Step S2, the SOC control board determines whether it is currently in a rainy environment, if so, jumps to step S3, if not, jumps to step S6; Step S3: The SOC control board performs rain removal processing on the environmental video data; Step S4, the SOC control board informs the MCU driver board of the current road condition of the vehicle through SPI communication, and at the same time, the SOC control board transmits the environmental video signal after rain removal processing to the vehicle screen for video display; Step S5, the MCU driver board turns on the rainy day scene mode, controls the dimming motor, the MicroLED light source board, and the fan through SPI communication, and then the MicroLED light source board displays the pattern of the rainy day scene mode; Step S6, the SOC control board informs the MCU driver board of the current road condition of the vehicle through SPI communication; Step S7, the MCU driver board turns on the normal scene mode, controls the dimming motor, MicroLED light source board, and fan through SPI communication, and then the MicroLED light source board displays the pattern of the normal scene mode.

7. The control method of the self-closed-loop automobile headlight system for rainy day scenes according to claim 6 is characterized in that: In step S5, the MCU driver board turns on the rainy day scene mode, controls the dimming motor, the MicroLED light source board, and the fan through SPI communication, and then the MicroLED light source board displays the pattern of the rainy day scene mode, which specifically includes the following steps: Step S51, the MCU driver board transmits information back through the SOC control board, and uses SPI communication to adjust the dimming motor; Step S52, the MCU driver board monitors the temperature through the temperature sensor, and controls the fan speed by using a PWM signal driving method according to the temperature; Step S53: The MicroLED light source panel displays a pattern of a rainy day scene mode.

8. The control method of the self-closed-loop automobile headlight system for rainy day scenes according to claim 6 is characterized in that: In step S7, the MCU driver board turns on the normal scene mode, controls the dimming motor, the MicroLED light source board, and the fan through SPI communication, and then the MicroLED light source board displays the pattern of the normal scene mode, which specifically includes the following steps: Step S71, the MCU driver board transmits information back through the SOC control board, and uses SPI communication to adjust the dimming motor; Step S72, the MCU driver board monitors the temperature through the temperature sensor, and controls the fan speed by using a PWM signal driving method according to the temperature; Step S73: The MicroLED light source panel displays a pattern in a normal scene mode.

9. The control method of the self-closed-loop automobile headlight system for rainy day scenes according to claim 6, characterized in that: In step S2, the SOC control board determines whether the current environment is rainy, which specifically includes the following steps: The SOC control board receives the environmental video signal sent by the camera module, identifies the video image signal of the first frame in the timeline, and stores the video signal data that cannot be processed in time into the DDR3 of the SOC control board.

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