Headlight control system

Abstract

This application applies to the field of automotive lighting technology and specifically provides a lighting control system comprising a light source assembly, a dimming assembly, a sensor, and a central processing unit. The light source assembly is used to emit a light beam. The dimming assembly is located along the light beam's propagation path and is used to adjust the light beam and reflect it to a digital micromirror device, which processes the light beam and then emits it. The sensor is used to detect the parameters of the light beam. The central processing unit is electrically connected to the sensor, receives signals from the sensor, and adjusts the light beam parameters based on the received signals. This invention aims to solve the technical problems of existing automotive lighting technologies, such as large space occupation, poor integration, and poor control.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile lamps, and more particularly to a lamp control system. Background Art

[0002] Car headlights include high beam and low beam. High beam is generally used for wide-area lighting when driving at high speed, while low beam is generally used for lighting when two cars are driving towards each other to avoid excessive light intensity and interference with the other car's driving.

[0003] Generally, the high beam and low beam are separately installed in front of the car, which takes up a large space. In addition, the control of the lights is simply manual and cannot be adaptively controlled according to changes in the light parameters. Summary of the Invention

[0004] The purpose of the present invention is to provide a vehicle light control system, aiming to solve the technical problems in the prior art that vehicle lights occupy a large space, have poor integration effect, and have poor control effect.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is to provide a vehicle light control system, including

[0006] A light source assembly, the light source assembly being used to emit a light beam;

[0007] a dimming component, the dimming component being disposed on the propagation path of the light beam and being used to adjust the light beam and reflect it to a digital micromirror device, which processes the light beam and then emits it;

[0008] a sensor for detecting a parameter of the light beam; and

[0009] A central processing unit is electrically connected to the sensor, and is used to receive a signal from the sensor, and adjust the parameters of the light beam according to the received signal.

[0010] In some embodiments of the present invention, the light source assembly is a three-color laser tube or an infrared laser tube.

[0011] In some embodiments of the present invention, the dimming component includes:

[0012] A lens group, the lens group is composed of one or more of a convex lens, a concave lens or a cylindrical lens, and the lens group is used to focus the light beam emitted by the laser tube;

[0013] a light rod, into which the light beams focused by the lens group enter, and the light rod is used to mix the light beams;

[0014] a first convex lens, through which the light beams mixed by the light rods are focused; and

[0015] The light beam focused by the first convex lens is reflected by the prism group to the digital micromirror device.

[0016] In some embodiments of the present invention, the light beam reflected from the digital micromirror device also passes through a second convex lens, and the second convex lens is used to image and focus the light beam.

[0017] In some embodiments of the present invention, the sensor includes a light intensity sensor, a temperature sensor, a color sensor, and an infrared sensor.

[0018] In some embodiments of the present invention, the light intensity sensor is used to detect light intensity, the temperature sensor is used to detect the temperature generated by the light beam in the headlight, the color sensor is used to detect the light color and light intensity at different positions in the light beam propagation path, and the infrared sensor is used to detect infrared signals.

[0019] In some embodiments of the present invention, the central processing unit is further electrically connected to a current control unit, and the current control unit is used to control the current intensity of the light source assembly.

[0020] In some embodiments of the present invention, there are three color sensors, and the three color sensors are used to detect the color light ratio and light intensity at different positions in the light beam propagation path.

[0021] In some embodiments of the present invention, the three color sensors are color sensor 1, color sensor 2, and color sensor 3, respectively. Color sensor 1 is arranged at the incident end of the light rod, color sensor 2 is arranged at the exit end of the light rod, and color sensor 3 is located at the exit end of the second convex lens.

[0022] In some embodiments of the present invention, the emitting end of the laser tube is further provided with a collimating lens, the central processing unit is further electrically connected to an image processing unit, the image processing unit is electrically connected to a digital micromirror device, and the image processing unit receives a signal from the central processing unit and controls the digital micromirror device to generate a preset shape of a headlight light-emitting area.

[0023] The beneficial effects of the vehicle light control system provided by the present invention are as follows: compared with the prior art, the present control system is provided with a sensor and a central processing unit, and the various parameters of the light beam that need to be tested are measured by the sensor, and the signal is transmitted to the central processing unit. The central processing unit can adaptively adjust the light beam according to the various parameter values, thereby realizing non-artificial adaptive adjustment. In addition, the present control system adopts a light emitting dimming structure that is adapted to the light source component, the dimming component and the digital micromirror device, which has good integrity and integration, thereby avoiding the technical problem that the high beam and the low beam are separately set up and occupy a large space. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic structural diagram of a light source assembly and a dimming assembly provided in an embodiment of the present invention;

[0026] Figure 2 This is a control principle diagram of the vehicle light control system provided by an embodiment of the present invention.

[0027] In the figure: 1. Lens group; 2. Light rod; 3. First convex lens; 4. Prism group; 5. Infrared sensor 1; 6. Infrared sensor 2; 7. Second convex lens; 8. Color sensor 1; 9. Color sensor 2; 10. Color sensor 3. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined. "Several" means one or more, unless otherwise specifically defined.

[0031] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and may encompass internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0033] See also Figure 1 and Figure 2 The present invention provides a vehicle light control system, comprising a light source assembly, a dimming assembly, a sensor, and a central processing unit; wherein the light source assembly is configured to emit a light beam; the light source assembly may be a laser tube, configured to emit a parallel light beam; the dimming assembly is disposed on a propagation path of the light beam, and is configured to adjust the light beam and reflect it to a digital micromirror device, including adjusting the angle and direction of light beam propagation; and finally, the digital micromirror device processes the light beam and emits it; the sensor is configured to detect light beam parameters; the central processing unit is electrically connected to the sensor, and is configured to receive signals from the sensor, and the central processing unit adjusts the light beam parameters according to the received signals.

[0034] Specifically, the light source assembly is used to emit a light beam, and the color of the light beam can be selected according to the needs. The light source assembly can use a laser tube to provide the light beam, or a laser tube and phosphor can be used to provide the light beam.

[0035] Specifically, the dimming component is a link between the light source component and the digital micromirror device. Its main function is to adjust the light emitted from the light source component and finally reflect the light beam to the digital micromirror device.

[0036] In some embodiments, the adjustment of the light beam by the dimming component may specifically include focusing, mixing, and reflecting the light beam, so that the light beam enters the digital micromirror device in an ideal state. The adjustment of the light beam is not limited to the above-mentioned forms and can be adaptively adjusted as needed.

[0037] In this embodiment, the digital micromirror device (DMD) integrates a large number of micromirrors on a single chip. Controlled by a microcontroller, each micromirror can independently flip between forward and reverse positions at high frequency. The microcontroller controls the duration of each micromirror's flipping by adjusting the pulse width, producing grayscale images of varying brightness on the screen. By combining a specific micromirror array, the desired light spot effect can be achieved.

[0038] The digital micromirror device is provided with a control chip. The digital micromirror device is connected to the control chip. The control chip receives instructions, and the digital micromirror device changes the shape or brightness of the outgoing light beam according to the control instructions.

[0039] Specifically, the sensor detects the parameter signal of the light beam and transmits the signal to the central processing unit. The central processing unit sends a corresponding signal to the control chip on the digital micromirror device based on the received signal, so that the digital micromirror device can adaptively adjust the light beam.

[0040] The beneficial effects of the vehicle light control system provided by the present invention are as follows: compared with the prior art, the present control system is provided with a sensor and a central processing unit, and the various parameters of the light beam that need to be tested are measured by the sensor, and the signal is transmitted to the central processing unit. The central processing unit can adaptively adjust the light beam according to the various parameter values, thereby realizing non-artificial adaptive adjustment. In addition, the present control system adopts a light emitting dimming structure that is adapted to the light source component, the dimming component and the digital micromirror device, which has good integrity and integration, thereby avoiding the technical problem that the high beam and the low beam are separately set up and occupy a large space.

[0041] like Figure 1 As shown, the light source assembly in this embodiment can be a three-color laser tube, i.e., an RGB three-color laser tube, or an infrared laser tube. Various colors can be obtained by varying the three color channels of red (R), green (G), and blue (B) and superimposing them. RGB represents the colors of the three channels of red, green, and blue.

[0042] By selecting an RGB laser tube, red, green, and blue light can be mixed to produce the desired white light. This combination of light can also produce light of any color, making it extremely versatile. Furthermore, when distance measurement and other operations are required, an infrared laser tube can be selected. If an infrared laser tube is used, the infrared beam is not used for illumination, but can be used for road condition detection. By receiving the returned infrared beam, the surrounding environment, such as vehicles and obstacles, can be identified while driving.

[0043] like Figure 1As shown, this embodiment also provides a dimming component, which includes a lens group 1, a light rod 2, a first convex lens 3, and a prism group 4. The lens group 1 is used to converge the light beams emitted by multiple laser tubes and adjust the parallelism of the multiple light beams. It is composed of one or more of a convex lens, a concave lens, or a cylindrical lens, and can be specifically configured as needed. The light rod 2 is used to allow multiple light beams after passing through the lens group 1 to enter the light rod 2, enter from the incident end of the light rod 2, and then be emitted from the output end of the light rod 2. When passing through the light rod 2, the light rod 2 can mix light beams of multiple colors. For example, if the laser tube uses red, green, and blue light, white light can be obtained after mixing the three colors, and then white light is emitted from the output end of the light rod 2. The first convex lens 3 is used to focus the mixed light beam emitted from the light rod 2, and then enter the prism group 4. The prism group 4 is used to reflect the light beam to the digital micromirror device. After the light beam is processed by the digital micromirror device, it emits a preset light beam. The prism group 4 is a TIR prism group.

[0044] The dimming assembly of this embodiment achieves adjustments such as focusing, reflection, and parallelism during light beam propagation. Through multiple focusing processes, it prevents beam divergence and effectively ensures light intensity. The light rod 2 combines multiple beams to produce a beam of the desired color, achieving adjustments during beam propagation. Furthermore, the digital micromirror device can adjust parameters such as beam shape and illumination angle. This improves the overall structural integration and saves space occupied by the headlight.

[0045] Further, if Figure 1 As shown, while the dimming assembly adjusts the light beam, the light beam reflected from the digital micromirror device also passes through a second convex lens 7 to enhance convergence and imaging. This second convex lens 7 is used to image and focus the light beam. The second convex lens 7 is relatively large, and after exiting the second convex lens 7, the laser beam is used for illumination.

[0046] In one embodiment, Figure 1 As shown, the sensors include light intensity sensor, temperature sensor, color sensor and infrared sensor. Figure 1 The locations of the color sensor and infrared sensor are provided, but the locations of the light intensity sensor and temperature sensor are not provided. Their specific locations can be set as needed.

[0047] Among them, the light intensity sensor is used to detect the intensity of the light beam, the temperature sensor is used to detect the heat emitted by the light beam in the car light and detect the temperature value, and the color sensor can be used to detect the light color and light intensity in the light beam, and can obtain the light color ratio of each color, such as the ratio of red, green and blue. The color sensor can also be used to detect light intensity, and the infrared sensor is used to detect infrared signals.

[0048] Specifically, the light intensity sensor, temperature sensor, color sensor and infrared sensor can be set at preset positions of the dimming component as needed to respectively detect the light beam parameters at different positions.

[0049] When an infrared laser tube is used, the infrared beam is not used for lighting, but can be used for road condition detection. By receiving the returned infrared beam, the surrounding environment during driving, such as vehicles and obstacles, can be identified. Therefore, an infrared sensor is provided accordingly. Two infrared sensors can be provided, namely infrared sensor 1 5 and infrared sensor 2 6. Both are used to detect the emitted infrared light and the reflected infrared light, respectively, and transmit the signal to the central processing unit. By comparing the difference between the two, the central processing unit can make a judgment, such as the distance to the obstacle, etc. The central processing unit can then issue a warning or reminder based on the judgment, and can also adjust the lighting effect of the headlights accordingly.

[0050] In one embodiment, Figure 2 As shown in the figure, the light intensity of the light beam and the heat generated thereby are determined by the current intensity of the laser tube. Therefore, the light intensity and temperature detected by the light intensity sensor and the temperature sensor can be adjusted by adjusting the current intensity of the laser tube. Specifically, the central processing unit receives the signals from the light intensity sensor and the temperature sensor, and then transmits the signals to the current control unit. The current control unit can control the current of the laser tube to adjust the current intensity, thereby achieving the adjustment of the light intensity and temperature.

[0051] In this embodiment, the central processing unit receives signals and adjusts the current intensity of the laser tube through the current control unit, thereby achieving the adjustment of light intensity and temperature.

[0052] Furthermore, this embodiment provides three color sensors, which are used to detect light color and light intensity at different positions in the light beam propagation path.

[0053] In this embodiment, to detect light beam parameters at different locations during propagation, three color sensors are positioned at different locations along the beam's path. This allows for monitoring of both light color and intensity. Furthermore, the color ratio (i.e., the proportion of different colors, such as red, green, and blue) can be detected.

[0054] Further, if Figure 1 As shown, this embodiment further provides positions for three color sensors, namely, color sensor 1 is located at the incident end of the light rod 2, color sensor 2 9 is located at the exit end of the light rod 2, and color sensor 3 10 is located at the exit end of the second convex lens 7.

[0055] The color sensor 1 8 is located at the incident end of the light rod 2 and can detect the convergence effect of the light. That is, when the convergence effect deviates from the preset effect, the light color and light intensity detected by the color sensor 1 8 will change, and the light color ratio will also change.

[0056] The color sensor 2 9 is arranged at the exit end of the light rod 2 and can detect the attenuation of the light after the light rod 2 mixes the light. The attenuation can also be determined based on the detection of light color and light intensity.

[0057] The second color sensor 9 is arranged at the exit end of the second convex lens 7 where the light beam exits, and can detect the RGB ratio (ratio of red, green and blue) and the total light intensity of the light finally emitted after the light beam processing is completed.

[0058] If both the second color sensor 9 and the third color sensor 10 detect attenuation anomalies, it means that the fault occurs in a section of the light path before the exit end of the light rod 2. Moreover, since both the second color sensor 9 and the third color sensor 10 detect attenuation anomalies, it means that the effect may be caused by the deviation of the light beam from the central axis.

[0059] If only color sensor 1 8 detects attenuation anomaly, but color sensor 2 9 and color sensor 3 10 do not detect a large deviation, it means that the RGB ratio deviates before the light enters the light rod 2, but is partially corrected after being mixed by the light rod 2.

[0060] It should be noted that the three color sensors can transmit signals to the central processing unit, and the central processing unit adjusts the intensity of the current through the current control unit, thereby adjusting the light color and light intensity of the light beam emitted by the laser tube.

[0061] In some embodiments, there are multiple color sensors. Providing multiple color sensors can increase the number of detection points on the light beam propagation path, thereby reducing the difficulty of fault diagnosis.

[0062] Specifically, the number of color sensors may be no less than three.

[0063] In some embodiments, the central processing unit may establish a fault judgment rule based on the test data of multiple color sensors. If the test result of a certain color sensor meets the fault judgment rule, it can be determined that the color sensor has failed.

[0064] Furthermore, fault judgment rules can be determined based on multiple measurement results from multiple color sensors. For example, all measurement results from all color sensors within a 24-hour period are stored, and the minimum and maximum values ​​of these measurement results are then calculated. The range from the minimum to the maximum value is used as the normal range. The fault judgment rule can then be that if the measurement result of a color sensor exceeds the normal range, the color sensor is deemed to be faulty.

[0065] In some embodiments, the central processor can establish measurement screening rules based on test data of multiple color sensors. If a test data of a color sensor triggers the measurement screening rule, the test data can be screened out, thereby avoiding misjudgment of whether the sensor is faulty.

[0066] Furthermore, measurement filtering rules can be determined based on multiple measurement results from the color sensor. For example, all measurement results from the color sensor within one hour are stored and linearly fitted. If a measurement result from the color sensor within the next hour deviates significantly from the linear fit result, the measurement filtering rule is penalized for that measurement result, and the measurement result is deleted.

[0067] Therefore, this embodiment can detect the light color and light intensity at different positions of the dimming component and make adaptive adjustments based on the detection situation, thereby ensuring the light output effect and achieving more precise adjustment.

[0068] When a headlight leaves the factory, it is initialized with a white balance setting to produce a standard white light. Once this setting is complete, the color sensor records the RGB ratio and total light intensity of the light emitted by the headlight.

[0069] In addition, if multiple color sensors are provided, it is possible to determine whether an installed color sensor has an abnormality based on the differences between the color sensors.

[0070] It should be noted that in some cases, the test values ​​of color sensors produced in the same batch may also vary. Therefore, when the test values ​​of color sensors vary greatly, the difference in the ratio between RGB is used as a reference.

[0071] For example, the test results of a color sensor may show that the red light intensity is 500 candela, the green light intensity is 300 candela, and the blue light intensity is 100 candela; however, the test results of another color sensor may show that the red light intensity is 50 candela, the green light intensity is 30 candela, and the blue light intensity is 10 candela (it should be noted that the above content is for schematic illustration only, and the trends of actual test results are the same or similar).

[0072] In this case, the test values ​​between the two color sensors differ significantly, but the ratios between the RGB values ​​measured by each color sensor remain the same. Therefore, if the test values ​​of the color sensors differ significantly, the difference in the RGB ratios can be used as a reference to determine whether the color sensors are malfunctioning. In some embodiments, if the RGB ratios differ significantly between different color sensors, the test results of a color sensor with the smallest difference between multiple measurement results from the same color sensor are used as a reference to determine whether the color sensors are functioning properly.

[0073] If the RGB ratios differ significantly between different color sensor test results, it's necessary to determine if these color sensors are functioning properly. Therefore, the degree of variance between the measurement results from the same color sensor can be used to determine if the color sensor is functioning properly. Because color sensors collect data at short intervals, typically ranging from 1 second to 10 minutes, when a color sensor is functioning properly, the data collected is correlated and fluctuates minimally. However, if the measurement results from the same color sensor vary significantly, it can be considered a malfunctioning color sensor.

[0074] Specifically, the degree of difference between multiple measurement results of the same color sensor may be the variance, mean square error, or median value between the multiple measurement results.

[0075] For example, if the variance or mean square error between multiple measurement results of a color sensor exceeds a preset range, it can be considered that the measurement result of the color sensor has experienced large fluctuations in a short period of time, and the measurement result of the color sensor may be abnormal.

[0076] For another example, if the number of median values ​​between multiple measurement results of a color sensor exceeds a preset range, it means that there is a large amount of test data in the measurement results of the color sensor that deviates from normal testing, and the measurement results of the color sensor may be abnormal.

[0077] In some cases, if the degree of discrepancy between multiple measurements from the same color sensor is insufficient to provide a reliable reference, the RGB ratio is compared to a preset RGB ratio. If it exceeds the preset range, the entire headlight structure is detected for anomalies. Because the probability of multiple sensors failing simultaneously is low, it is suspected that the light path in the headlight is affected by the optical component support structure, causing an anomaly in the propagation path.

[0078] During later use, monitor the RGB ratio and total light intensity to determine if the ratio deviates. Additionally, to eliminate ambient light interference on the test results, you can choose to deduct the ambient light intensity, testing the RGB ratio and total light intensity when the lights are off. Generally, when the lights are turned off, the entire control system is powered off, effectively leaving no power to the color sensor. A delayed shutdown can be implemented within the control instructions, for example, by delaying power to the control system for 0.5 seconds, completing the test and turning off the lights before the user notices. Alternatively, a capacitor can be added to the sensor so that after the entire control system is powered off, the stored charge in the capacitor can be used to complete a test. The RGB ratio and total light intensity measured with the lights off can be used as background parameters to correct for interference from ambient light after the lights are turned on. During daylight hours, the RGB ratio and total light intensity of daylight can be used as a reference to correct for deviations in the RGB ratio of the lights themselves.

[0079] In one embodiment, Figure 1 As shown, the emitting end of the laser tube is also provided with a collimating lens, which is used to collimate the light beam, reduce the divergent light beam, and improve the efficiency of using the laser beam. The central processing unit is also electrically connected to the image processing unit, and the image processing unit is electrically connected to the digital micromirror device. The image processing unit receives the signal of the central processing unit and controls the digital micromirror device to generate a preset shape of the headlight light-emitting area.

[0080] Specifically, the DMD can generate different light shapes. When the central processing unit receives a signal, it transmits the signal to the image processing unit, which in turn transmits the signal to the DMD, causing the DMD to control the headlights to generate a preset light shape, such as a turning arrow. The signal received by the central processing unit can come from a physical operating terminal controlled by a human hand.

[0081] The form of generating a preset headlight image by controlling the image processing unit provided in this embodiment can solve the problem of generating a preset headlight shape in a specific driving environment, and can serve as a warning and reminder.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A vehicle light control system, characterized in that: include A light source assembly, the light source assembly being used to emit a light beam; a dimming component, the dimming component being disposed on the propagation path of the light beam and being used to adjust the light beam and reflect it to a digital micromirror device, which processes the light beam and then emits it; A sensor for detecting parameters of a light beam; the sensor includes a color sensor for detecting the ratio and intensity of color light at different positions in a light beam propagation path; as well as A central processing unit (CPU) is electrically connected to the sensor, the CPU is used to receive signals from the sensor, and the CPU adjusts the parameters of the light beam according to the received signals. The CPU is also electrically connected to an image processing unit, and the image processing unit is electrically connected to a digital micromirror device (DMD). The image processing unit receives signals from the CPU and controls the DMD to generate a headlight luminous area of ​​a preset shape. The CPU establishes a fault judgment rule and / or a measurement screening rule based on the test data of the color sensor. The fault judgment rule uses the range between the minimum and maximum values ​​of multiple measurement results of multiple color sensors as the normal range. The measurement screening rule performs linear fitting on the multiple measurement results of the multiple color sensors, and uses the linear fitting result as a reference standard.

2. The vehicle light control system according to claim 1, wherein: The light source component is a three-color laser tube or an infrared laser tube.

3. The vehicle light control system according to claim 1, wherein: The dimming component includes: A lens group, the lens group is composed of one or more of a convex lens, a concave lens or a cylindrical lens, and the lens group is used to focus the light beam emitted by the laser tube; a light rod, into which the light beams focused by the lens group enter, and the light rod is used to mix the light beams; a first convex lens, through which the light beams mixed by the light rods are focused; and The light beam focused by the first convex lens is reflected by the prism group to the digital micromirror device.

4. The vehicle light control system according to claim 3, wherein: The light beam reflected from the digital micromirror device also passes through a second convex lens, which is used to image and focus the light beam.

5. The vehicle light control system according to any one of claims 1 to 4, characterized in that: The sensors include a light intensity sensor, a temperature sensor and an infrared sensor.

6. The vehicle light control system according to claim 5, characterized in that: The light intensity sensor is used to detect light intensity, the temperature sensor is used to detect the temperature generated by the light beam in the headlight, and the infrared sensor is used to detect infrared signals.

7. The vehicle light control system according to claim 6, wherein: The central processing unit is also electrically connected to a current control unit, and the current control unit is used to control the current intensity of the light source assembly.

8. The vehicle light control system according to claim 5, wherein: There are three color sensors, and the three color sensors are used to detect light color and light intensity at different positions in the light beam propagation path.

9. The vehicle light control system according to claim 8, wherein: The three color sensors are color sensor 1, color sensor 2, and color sensor 3. Color sensor 1 is located at the incident end of the light rod, color sensor 2 is located at the exit end of the light rod, and color sensor 3 is located at the exit end of the second convex lens.

10. The vehicle light control system according to claim 2, wherein: The emitting end of the laser tube is also provided with a collimating lens.

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