Matrix headlamp control system based on CAN communication

Abstract

The invention discloses a matrix headlamp control system based on CAN communication, and relates to the technical field of automobile lamplight. According to the matrix headlamp control system based on CAN communication, through intelligent control over the LED lamp set module and precise thermal management design, the illumination direction and intensity can be automatically adjusted according to the driving environment, it is ensured that the illumination requirement is met, and glare to coming vehicles can be reduced. According to the system, the service life of the LED luminous body is effectively prolonged and the overall heat management performance is improved through the technologies of self-adaptive control, negative pressure exhaust, heat dissipation and flow guide and the like. Meanwhile, in the vehicle driving process, the system can flexibly cope with different road conditions such as turning and overtaking, and temporary illumination is provided to enhance driving safety.

Description

Technical Field

[0001] The invention relates to the technical field of automobile lighting, and in particular to a matrix headlight control system based on CAN communication. Background Art

[0002] At present, automobile lighting systems mainly rely on traditional low beams, high beams and turn signals, which have simple functions and fail to fully consider the lighting needs under various road conditions. For example, high beams may cause glare to oncoming vehicles, posing a potential danger to drivers and pedestrians. At the same time, traditional headlights are usually unable to automatically adjust the direction of light according to factors such as the driving status of the vehicle and the inclination of the road. In order to ensure driving safety and reduce the impact on other drivers, modern headlight systems require more control methods to adapt to different driving environments. However, although the existing matrix headlight system can be precisely controlled through multiple LED lamp beads, it still requires frequent turning on and off of the lights and cannot handle thermal management and lighting requirements at the same time. In addition, many current headlight systems still have deficiencies in thermal management and heat dissipation. Long-term use will cause the temperature of the LED light emitter to be too high, thereby affecting its service life and brightness stability. Summary of the invention

[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: a matrix headlight control system based on CAN communication, comprising an airflow guide shell, wherein two parallel supporting guide baffles and a base mounting plate arranged in parallel with the supporting guide baffles are fixedly installed on the inner wall of the airflow guide shell; an air intake window is opened at a position between the two supporting guide baffles of the airflow guide shell; it also includes a plurality of LED light group modules, and all the LED light group modules are inserted into the supporting guide baffles; after the system is powered on, the central control unit and all the distributed LED light group modules first perform network initialization through the CAN bus to synchronize communication parameters; the LED light group module includes two dimming chambers and light collimation chambers that are fixedly connected to each other, wherein the light collimation chamber is fixedly provided with an LED light-emitting body, a plane lens is rotatably arranged in the dimming chamber, a collimation lens is arranged between the plane lens and the LED light-emitting body, and the collimation lens is used to collimate the divergent light beam emitted by the LED light-emitting body; wherein a sealing cover is fixedly provided at one end of the dimming chamber away from the light collimation chamber, an outer lens is embedded in the sealing cover, and the outer lens is coaxially arranged with the collimation lens to form a closed space between the light collimation chamber and the dimming chamber.

[0004] Preferably, the collimating lens is fixedly mounted on the inner wall of the light collimating chamber; the plane lens is fixedly installed between two parallel edge frames, both edge frames are rotatably matched with the inner wall of the dimming chamber, a dimming swing arm is rotatably mounted on the outer surface of the dimming chamber, the dimming swing arm is fixedly matched with one of the edge frames via a rotating shaft, and the rotating shaft is rotatably sealed with the dimming chamber.

[0005] Preferably, a magnetic block is fixedly provided at one end of the dimming swing arm away from the edge plate frame, a regulating and controlling electromagnet is provided below the magnetic block, a contact surface is provided on the side of the regulating and controlling electromagnet facing the magnetic block, the contact surface is in contact and cooperate with the magnetic block, and the regulating and controlling electromagnet is magnetically cooperated with the magnetic block; a reset elastic pull strip is provided at a position of the dimming swing arm away from the regulating and controlling electromagnet, one end of the reset elastic pull strip is fixed to the dimming chamber, and the other end of the reset elastic pull strip is fixed to the dimming swing arm; a limit block is fixedly provided on the dimming chamber on the side of the dimming swing arm facing the reset elastic pull strip, and the limit block is used to limit the swing angle of the dimming swing arm.

[0006] Preferably, a heat dissipation guide tube is provided on the outside of the light collimation chamber and the dimming chamber, and the heat dissipation guide tube is fixedly matched with the supporting guide baffle. A plurality of air inlet circular holes are also provided on the heat dissipation guide tube, and the air inlet circular holes are located between the two supporting guide baffles; one end of the heat dissipation guide tube is fixedly matched with the base mounting plate, and ventilation holes are provided at the junction of the base mounting plate and all the heat dissipation guide tubes.

[0007] Preferably, a negative pressure shell is fixedly and sealedly installed on the airflow guiding shell, and a plurality of exhaust ports are fixedly provided on the negative pressure shell, each exhaust port is connected to the interior of the negative pressure shell, the negative pressure shell is connected to the interior of the heat dissipation guide tube through ventilation perforations, and a negative pressure exhaust fan is rotatably arranged in each exhaust port.

[0008] Preferably, the light collimation chamber is fixedly mounted on the ball head, the ball head is movably connected to the ball head seat by a ball pair connection method, and the ball head seat is fixedly matched with the base mounting plate; four direction-adjusting moving iron blocks arranged in a circular array are fixedly mounted on the circumferential surface of the light collimation chamber, and the side of each direction-adjusting moving iron block is magnetically matched with a direction-adjusting electromagnet, and all the direction-adjusting electromagnets are fixed on the inner wall of the heat dissipation guide tube.

[0009] Preferably, a centering elastic pull rod bracket is fixedly installed on the inner wall of the heat dissipation guide tube, and the centering elastic pull rod bracket is elastically connected to the outer surface of the light collimation chamber through multiple centering elastic pull rods with the same pulling force. The multiple centering elastic pull rods together elastically limit the light collimation chamber to a position coaxial with the heat dissipation guide tube.

[0010] Preferably, a heat sink is fixedly provided on the outer surface of the light collimation chamber at a position aligned with the LED light-emitting body, for absorbing the heat generated during the operation of the LED light-emitting body, and a temperature sensor and a light sensor for detecting the temperature and optical state of the LED light-emitting body are provided inside the light collimation chamber; wherein a light sensor is provided on the side of the sealing cover facing the plane lens, for detecting the state of the light passing through the plane lens.

[0011] Preferably, the heat dissipation guide tube is provided with a first elastic film ring and a second elastic film ring at the positions of the outer lens and the heat sink, respectively, wherein the outer ring of the first elastic film ring is fixedly matched with the inner wall of the heat dissipation guide tube, and the inner ring of the first elastic film ring is arranged on the outer side of the heat sink; wherein the outer ring of the second elastic film ring is fixedly matched with the inner wall of the heat dissipation guide tube, and the inner ring of the second elastic film ring is fixedly matched with the sealing cover.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The matrix headlight system based on CAN communication of the present invention adjusts the direction and intensity of light according to the driving scene through the collaboration of the central control unit and the distributed LED light group module. This can not only meet the lighting needs in different scenes, but also effectively reduce the glare to other vehicles and pedestrians, and improve driving safety; (2) The present invention reduces the brightness of light without turning off the LED light by controlling the swing angle of the plane lens, thereby effectively extending the service life of the LED light source. In addition, the system combines the heat dissipation guide tube and the negative pressure exhaust device to continuously manage heat and ensure that the LED light source works stably at a lower temperature; (3) When the vehicle changes lanes or overtakes, the system of the present invention can automatically adjust the range and angle of light irradiation to provide the driver with a wider lighting field of view, especially when blind spot monitoring and turn signals are coordinated, it can effectively provide temporary lighting and enhance driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 This is a schematic diagram of the negative pressure housing structure installed in the present invention.

[0015] Figure 3 It is a schematic diagram of the ventilation perforation structure of the present invention.

[0016] Figure 4 This is a schematic diagram of the supporting guide baffle structure of the present invention.

[0017] Figure 5 It is a schematic diagram of the internal structure of the heat dissipation guide tube of the present invention.

[0018] Figure 6 for Figure 5 Schematic diagram of the structure at point A in the middle.

[0019] Figure 7 It is a structural schematic diagram of the direction-adjusting electromagnet of the present invention.

[0020] Figure 8 It is a schematic diagram of the internal structure of the dimming chamber of the present invention.

[0021] Fig. 9 for Figure 8 Schematic diagram of the structure at point B in the middle.

[0022] In the figure: 101-negative pressure housing; 102-exhaust port; 103-negative pressure exhaust fan; 104-airflow guide housing; 105-air inlet window; 106-support guide baffle; 107-base mounting plate; 108-ventilation perforation; 109-limiting block; 110-heat dissipation guide tube; 111-air inlet circular hole; 112-first elastic film ring; 113-second elastic film ring; 114-sealing cover; 115-outer lens; 116-dimming chamber; 11 7-light collimation chamber; 118-collimating lens; 119-LED light source; 120-edge plate frame; 121-plane lens; 122-dimming swing arm; 123-regulating control electromagnet; 124-contact surface; 125-magnetic block; 126-reset elastic pull strip; 127-heat sink; 128-centering elastic pull strip bracket; 129-centering elastic pull strip; 130-adjusting electromagnet; 131-adjusting moving iron block; 132-ball head; 133-ball head seat. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-Figure 9 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0024] The present invention provides a matrix headlight control system based on CAN communication, comprising an airflow guiding shell 104, on the inner wall of which two parallel supporting guide baffles 106 and a base mounting plate 107 arranged in parallel with the supporting guide baffles 106 are fixedly installed; the airflow guiding shell 104 is provided with an air intake window 105 at a position between the two supporting guide baffles 106; it also comprises a plurality of LED light group modules, all of which are inserted into the supporting guide baffles 106; after the system is powered on, the central control unit and all the distributed LED light group modules first perform network initialization through the CAN bus and synchronize communication parameters; each LED light group module detects its own hardware status (power supply, sensor, drive circuit) through a self-test program, and then registers its own status parameters to the central control unit; at the same time, other vehicle body systems (such as steering, vehicle speed, navigation) also transmit information to the central control unit through the CAN bus; the central control unit makes decisions based on the fused data, and intelligently selects whether to use the modules according to the driving scenario (such as curves, straight driving, overtaking, bad weather). The same control mode ensures that the lighting needs are met while preventing glare and realizing the information prompt function; after the decision is made, the central control unit distributes the specific control instructions to each LED light group module through the CAN bus according to the node ID; after receiving the instructions, the microcontroller in each LED light group module makes fine adjustments according to the local subdivided parameters (such as local temperature, current optical state); the LED light group module includes two dimming chambers 116 and light collimation chambers 117 that are fixedly connected to each other, wherein the light collimation chamber 117 is fixedly equipped with LED light emitters. The light modulating chamber 116 has a plane lens 121 rotatably arranged in it, a collimating lens 118 is arranged between the plane lens 121 and the LED light emitting body 119, and the collimating lens 118 is used to collimate the divergent light beam emitted by the LED light emitting body 119; wherein the light modulating chamber 116 is fixedly provided with a sealing cover 114 at one end away from the light collimating chamber 117, and an outer lens 115 is embedded in the sealing cover 114, and the outer lens 115 is coaxially arranged with the collimating lens 118, so as to form a closed space between the light collimating chamber 117 and the light modulating chamber 116.

[0025] The collimating lens 118 is fixedly mounted on the inner wall of the light collimating chamber 117; the plane lens 121 is fixedly installed between two parallel edge frames 120, and both edge frames 120 are rotatably matched with the inner wall of the dimming chamber 116. A dimming swing arm 122 is rotatably mounted on the outer surface of the dimming chamber 116, and the dimming swing arm 122 is fixedly matched with one of the edge frames 120 via a rotating shaft, and the rotating shaft is rotatably sealed with the dimming chamber 116. A magnetic block 125 is fixedly provided at one end of the dimming swing arm 122 away from the edge plate frame 120, and a regulating and controlling electromagnet 123 is arranged below the magnetic block 125. A contact surface 124 is arranged on the side of the regulating and controlling electromagnet 123 facing the magnetic block 125, and the contact surface 124 contacts and cooperates with the magnetic block 125, and the regulating and controlling electromagnet 123 and the magnetic block 125 are magnetically cooperated; the dimming swing arm 122 is provided with a reset elastic pull strip 126 at a position away from the regulating and controlling electromagnet 123, one end of the reset elastic pull strip 126 is fixed to the dimming chamber 116, and the other end of the reset elastic pull strip 126 is fixed to the dimming swing arm 122; a limit block 109 is fixedly provided on the dimming chamber 116 on the side of the dimming swing arm 122 facing the reset elastic pull strip 126, and the limit block 109 is used to limit the swing angle of the dimming swing arm 122.

[0026] The outer side of the light collimation chamber 117 and the dimming chamber 116 is provided with a heat dissipation guide tube 110, which is fixedly matched with the supporting guide baffle 106. The heat dissipation guide tube 110 is also provided with a plurality of air intake holes 111, which are located between the two supporting guide baffles 106; one end of the heat dissipation guide tube 110 is fixedly matched with the base mounting plate 107, and ventilation holes 108 are provided at the intersection of the base mounting plate 107 and all the heat dissipation guide tubes 110. The airflow guide shell 104 is also fixedly and sealedly provided with a negative pressure shell 101, and the negative pressure shell 101 is fixedly provided with a plurality of exhaust ports 102, each of which is connected with the inside of the negative pressure shell 101, and the negative pressure shell 101 is connected with the inside of the heat dissipation guide tube 110 through the ventilation holes 108, and a negative pressure exhaust fan 103 is rotatably provided in each exhaust port 102. The light collimation chamber 117 is fixedly mounted on the ball head 132, and the ball head 132 is movably connected to the ball head seat 133 through a ball pair connection method, and the ball head seat 133 is fixedly matched with the base mounting plate 107; four circular array-arranged steering moving iron blocks 131 are fixedly mounted on the circumferential surface of the light collimation chamber 117, and each steering moving iron block 131 is magnetically matched with a steering electromagnet 130 on its side, and all the steering electromagnets 130 are fixed on the inner wall of the heat dissipation guide tube 110.

[0027] A centering elastic tie rod bracket 128 is also fixedly installed on the inner wall of the heat dissipation guide tube 110. The centering elastic tie rod bracket 128 is elastically connected to the outer surface of the light collimation chamber 117 through a plurality of centering elastic tie rods 129 with the same pulling force. The plurality of centering elastic tie rods 129 together elastically limit the light collimation chamber 117 to a position coaxial with the heat dissipation guide tube 110. A heat sink 127 is fixedly arranged at a position aligned with the LED illuminator 119 on the outer surface of the light collimation chamber 117, which is used to absorb the heat generated during the operation of the LED illuminator 119. A temperature sensor and a light sensor for detecting the temperature and optical state of the LED illuminator 119 are arranged inside the light collimation chamber 117; wherein a light sensor is arranged on the side of the sealing cover 114 facing the plane lens 121, which is used to detect the state of the light passing through the plane lens 121 (to determine whether the LED illuminator 119 and the regulating and controlling electromagnet 123 are working normally). The heat dissipation guide tube 110 is provided with a first elastic film ring 112 and a second elastic film ring 113 at the positions of the outer lens 115 and the heat sink 127, respectively. The outer ring of the first elastic film ring 112 is fixedly matched with the inner wall of the heat dissipation guide tube 110, and the inner ring of the first elastic film ring 112 is arranged on the outer side of the heat sink 127; the outer ring of the second elastic film ring 113 is fixedly matched with the inner wall of the heat dissipation guide tube 110, and the inner ring of the second elastic film ring 113 is fixedly matched with the sealing cover 114.

[0028] The working principle of a matrix headlight control system based on CAN communication disclosed in the present invention is as follows: the microcontroller can independently control the control electromagnet 123, the LED light emitter 119 and the four direction adjustment electromagnets 130. The LED light emitter 119 is controlled to start and stop (normally there are two headlights, so two devices are required, and the axis of the heat dissipation guide tube 110 in each device is not all consistent, but is adaptively arranged according to the high and low beams). The LED light emitter 119 will emit light after being energized. The emitted light is collimated by the collimating lens 118 and then directed to the plane lens 121, passes through the plane lens 121 and then passes through the outer lens 115, and finally passes through the headlight assembly housing to illuminate the ground or far away.

[0029] When the vehicle is in a tilted position on the road, the illumination angle of the low beam headlight is relatively high, which will affect oncoming vehicles. At this time, the control electromagnet 123 can be controlled. After the control electromagnet 123 is energized, it will attract the magnetic block 125, and then drive the dimming swing arm 122 to swing, the dimming swing arm 122 drives the edge frame 120 to swing, and the edge frame 120 drives the plane lens 121 to swing. After the plane lens 121 swings, the incident angle of the light entering the plane lens 121 will be changed. At this time, the light is refracted and deviates from the original path (since it is not a beam of light, some light will still be emitted from the outer lens 115, and some light will be blocked by the dimming chamber 116 and the sealing cover 114), thereby reducing the light intensity passing through the plane lens 121. This method can reduce the light brightness without closing the LED light source 119. Similarly, when the high beam is turned on, the light will also affect the oncoming vehicles, so that the plane lens 121 at the high beam position can be controlled to swing (the LED light emitter 119 at the high beam position needs to use a larger power), and the same effect can be achieved when flashing the high beam to overtake, and the light indication function can be achieved without extinguishing the LED light emitter 119, greatly extending the service life of the LED light emitter 119. When the control electromagnet 123 is powered off (reset), the dimming swing arm 122 will swing to the contact position with the limit block 109 under the elasticity of the reset elastic pull bar 126, so that the plane lens 121 is perpendicular to the light collimated by the collimating lens 118.

[0030] When the turn signal is on or there is a vehicle overtaking from behind (synchronized with the blind spot monitoring light), the lights on the left and right sides are adjusted to illuminate the left front or right front, which can provide the driver with a wider lighting range (temporary); specifically, the steering electromagnet 130 of the corresponding angle is controlled, and the steering electromagnet 130 will attract the steering movable iron block 131, and then drive the steering movable iron block 131 to move, and the steering movable iron block 131 drives the light collimation chamber 117 to move, while overcoming the pulling force of the centering elastic pull strip 129, so as to adjust the angle of the light emitted by the outer lens 115, and the angle of the light emitted by the outer lens 115 can be controlled by controlling the magnetic attraction size of the four steering electromagnets 130; for example, when driving on a slope, the light angle can be swung downward to allow more light beams to shine on the road surface.

[0031] The LED light source 119 will generate a lot of heat when working for a long time, so it is necessary to start the negative pressure exhaust fan 103. When the negative pressure exhaust fan 103 is started, it will suck away the air inside the negative pressure shell 101, and then suck away the air inside the heat dissipation guide tube 110 through the ventilation perforations 108, and then suck away the air inside the airflow guiding shell 104 through the air intake holes 111. At this time, the inside of the airflow guiding shell 104 is in negative pressure, so the external cold air will enter the airflow guiding shell 104 through the air intake window 105, forming a stable air flow. This part of the air will pass through the heat sink 127, thereby driving the heat on the heat sink 127, and the temperature of the LED light source 119 will be transmitted to the heat sink 127 through the light collimation chamber 117.

Claims

1. A matrix headlight control system based on CAN communication, characterized in that: It comprises an airflow guiding shell (104), the inner wall of which is fixedly mounted two supporting guide baffles (106) arranged in parallel and a base mounting plate (107) arranged in parallel with the supporting guide baffles (106); the airflow guiding shell (104) is provided with an air intake window (105) at a position between the two supporting guide baffles (106); It also includes a plurality of LED light group modules, all of which are inserted into the supporting guide baffle (106); after the system is powered on, the central control unit and all of the distributed LED light group modules first perform network initialization via the CAN bus to synchronize communication parameters; The LED light group module comprises two dimming chambers (116) and a light collimating chamber (117) which are fixedly connected to each other, wherein an LED light emitting body (119) is fixedly arranged in the light collimating chamber (117), a plane lens (121) is rotatably arranged in the dimming chamber (116), a collimating lens (118) is arranged between the plane lens (121) and the LED light emitting body (119), and the collimating lens (118) is used to collimate the divergent light beam emitted by the LED light emitting body (119); wherein a sealing cover (114) is fixedly arranged at one end of the dimming chamber (116) away from the light collimating chamber (117), an outer lens (115) is embedded in the sealing cover (114), and the outer lens (115) and the collimating lens (118) are arranged coaxially to form a closed space between the light collimating chamber (117) and the dimming chamber (116).

2. The matrix headlight control system based on CAN communication according to claim 1, characterized in that: The collimating lens (118) is fixedly mounted on the inner wall of the light collimating chamber (117); the plane lens (121) is fixedly mounted between two parallel edge frames (120); the two edge frames (120) are both rotatably matched with the inner wall of the dimming chamber (116); a dimming swing arm (122) is rotatably mounted on the outer surface of the dimming chamber (116); the dimming swing arm (122) is fixedly matched with one of the edge frames (120) via a rotating shaft; the rotating shaft is rotatably sealed with the dimming chamber (116).

3. The matrix headlight control system based on CAN communication according to claim 2, characterized in that: A magnetic block (125) is fixedly provided at one end of the dimming swing arm (122) away from the edge plate frame (120); a regulating control electromagnet (123) is provided below the magnetic block (125); a contact surface (124) is provided on a side of the regulating control electromagnet (123) facing the magnetic block (125); the contact surface (124) contacts and cooperates with the magnetic block (125); the regulating control electromagnet (123) and the magnetic block (125) are magnetically coupled; the dimming swing arm (122) is located away from the edge plate frame (120); A resetting elastic pull strip (126) is arranged at the position of the regulating control electromagnet (123); one end of the resetting elastic pull strip (126) is fixed to the dimming chamber (116), and the other end of the resetting elastic pull strip (126) is fixed to the dimming swing arm (122); a limit block (109) is fixedly arranged on the dimming chamber (116) on the side of the dimming swing arm (122) facing the resetting elastic pull strip (126); the limit block (109) is used to limit the swing angle of the dimming swing arm (122).

4. The matrix headlight control system based on CAN communication according to claim 3, characterized in that: A heat dissipation guide tube (110) is arranged outside the light collimation chamber (117) and the dimming chamber (116); the heat dissipation guide tube (110) is fixedly matched with the supporting guide baffle (106); a plurality of air intake holes (111) are also provided on the heat dissipation guide tube (110); the air intake holes (111) are located between two supporting guide baffles (106); one end of the heat dissipation guide tube (110) is fixedly matched with the base mounting plate (107); ventilation holes (108) are provided at the intersections between the base mounting plate (107) and all the heat dissipation guide tubes (110).

5. The matrix headlight control system based on CAN communication according to claim 4, characterized in that: A negative pressure housing (101) is also fixedly and sealedly mounted on the airflow guide housing (104); a plurality of exhaust ports (102) are fixedly provided on the negative pressure housing (101); each exhaust port (102) is connected to the interior of the negative pressure housing (101); the negative pressure housing (101) is connected to the interior of the heat dissipation guide tube (110) via ventilation holes (108); and a negative pressure exhaust fan (103) is rotatably mounted in each exhaust port (102).

6. The matrix headlight control system based on CAN communication according to claim 5, characterized in that: The light collimating chamber (117) is fixedly mounted on the ball head (132), the ball head (132) is movably connected to the ball head seat (133) by means of a ball pair connection, and the ball head seat (133) is fixedly matched with the base mounting plate (107); four direction-adjusting moving iron blocks (131) arranged in a circular array are fixedly mounted on the circumferential surface of the light collimating chamber (117), and a direction-adjusting electromagnet (130) is magnetically matched on the side of each direction-adjusting moving iron block (131), and all the direction-adjusting electromagnets (130) are fixed on the inner wall of the heat dissipation guide tube (110).

7. The matrix headlight control system based on CAN communication according to claim 6, characterized in that: A centering elastic tie rod bracket (128) is also fixedly mounted on the inner wall of the heat dissipation guide tube (110); the centering elastic tie rod bracket (128) and the outer surface of the light collimation chamber (117) are elastically connected via a plurality of centering elastic tie rods (129) having the same pulling force; the plurality of centering elastic tie rods (129) together elastically restrict the light collimation chamber (117) to a position coaxial with the heat dissipation guide tube (110).

8. The matrix headlight control system based on CAN communication according to claim 7, characterized in that: A heat sink (127) is fixedly arranged at a position on the outer surface of the light collimating chamber (117) aligned with the LED light emitter (119), and is used to absorb heat generated by the LED light emitter (119) during operation. A temperature sensor and a light sensor for detecting the temperature and optical state of the LED light emitter (119) are arranged inside the light collimating chamber (117); wherein a light sensor is arranged on a side of the sealing cover (114) facing the plane lens (121), and is used to detect the state of light passing through the plane lens (121).

9. The matrix headlight control system based on CAN communication according to claim 8, characterized in that: The heat dissipation guide tube (110) is provided with a first elastic film ring (112) and a second elastic film ring (113) at positions of the outer lens (115) and the heat sink (127), respectively, wherein the outer ring of the first elastic film ring (112) is fixedly matched with the inner wall of the heat dissipation guide tube (110), and the inner ring of the first elastic film ring (112) is arranged on the outer side of the heat sink (127); wherein the outer ring of the second elastic film ring (113) is fixedly matched with the inner wall of the heat dissipation guide tube (110), and the inner ring of the second elastic film ring (113) is fixedly matched with the sealing cover (114).

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