A matrix headlight control system based on CAN communication

Abstract

The present invention discloses a matrix headlight control system based on CAN communication, which relates to the technical field of automotive lighting. The matrix headlight control system based on CAN communication of the present invention can automatically adjust the illumination direction and intensity according to the driving environment through intelligent control of the LED lamp group module and precise thermal management design, ensuring that it not only meets the lighting requirements but also reduces the glare to oncoming vehicles. The system effectively extends the service life of the LED light-emitting body and improves the overall thermal management performance through technologies such as adaptive control, negative pressure exhaust, and heat dissipation diversion. At the same time, during the driving of the vehicle, the system can flexibly respond to different road conditions, such as turning and overtaking, and provide temporary lighting to enhance driving safety.

Description

Technical Field

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

[0002] Currently, automotive lighting systems mainly rely on traditional low beams, high beams and turn signals, with simple functions and insufficient consideration of lighting requirements in various road conditions. For example, high beams may cause glare when there is an oncoming vehicle, posing potential risks to both drivers and pedestrians. At the same time, traditional vehicle lights usually cannot automatically adjust the light direction according to factors such as the driving state of the vehicle and the slope of the road surface. 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 existing matrix headlight systems can precisely control multiple LED lamp beads, they still need to frequently turn the lights on and off and cannot handle thermal management and lighting requirements simultaneously. In addition, many current headlight systems still have deficiencies in thermal management and heat dissipation, and prolonged use will cause the temperature of the LED light-emitting body to be too high, thus affecting its service life and brightness stability. Summary of the Invention

[0003] To overcome the defects of the above-mentioned prior art, the present invention provides the following technical solution: A matrix headlight control system based on CAN communication, including an air flow guiding housing, on the inner wall of which two parallel support and diversion partition plates and a base mounting plate parallel to the support and diversion partition plates are fixedly installed; an air intake window is provided at the position between the two support and diversion partition plates of the air flow guiding housing; it further includes a plurality of LED lamp group modules, and all the LED lamp group modules are inserted on the support and diversion partition plates; after the system is powered on, the central control unit and all the distributed LED lamp group modules first perform network initialization through the CAN bus to synchronize communication parameters; the LED lamp group module includes two fixedly connected and communicated light dimming chambers and light collimation chambers, wherein an LED light-emitting body is fixedly arranged in the light collimation chamber, a plano-convex lens is rotatably arranged in the light dimming chamber, and a collimating lens is arranged between the plano-convex lens and the LED light-emitting body, and the collimating lens is used to collimate the divergent light beam emitted by the LED light-emitting body; one end of the light dimming chamber far from the light collimation chamber is fixedly provided with a sealing cover, and an outer lens is embedded on the sealing cover, and the outer lens is coaxially arranged with the collimating lens to form a sealed space between the light collimation chamber and the light dimming chamber.

[0004] Preferably, the collimating lens is fixedly arranged on the inner wall of the light collimation chamber; the plano-convex lens is fixedly installed between two parallel edge plate frames, both of which are rotatably matched with the inner wall of the light dimming chamber, and a light dimming swing arm is rotatably arranged on the outer surface of the light dimming chamber, and the light dimming swing arm is fixedly matched with one of the edge plate frames through a rotating shaft, and the rotating shaft is rotatably and hermetically matched with the light dimming chamber.

[0005] Preferably, a magnetic attraction block is fixedly arranged at one end of the dimming swing arm away from the edge plate rack. A regulating control electromagnet is arranged below the magnetic attraction block. A contact surface is arranged on the side of the regulating control electromagnet facing the magnetic attraction block. The contact surface is in contact and cooperation with the magnetic attraction block, and the regulating control electromagnet is in magnetic attraction cooperation with the magnetic attraction block. A reset elastic tension strip is arranged at a position of the dimming swing arm away from the regulating control electromagnet. One end of the reset elastic tension strip is fixed to the dimming chamber, and the other end of the reset elastic tension strip is fixed to the dimming swing arm. A limiting block is fixedly arranged on the dimming chamber on the side where the dimming swing arm faces the reset elastic tension strip. The limiting block is used to limit the swinging angle of the dimming swing arm.

[0006] Preferably, a heat dissipation diversion cylinder is arranged outside the light collimation chamber and the dimming chamber. The heat dissipation diversion cylinder is fixedly and cooperatively connected with the support diversion partition plate. A plurality of air intake round holes are also formed in the heat dissipation diversion cylinder, and the air intake round holes are located at positions between two support diversion partition plates. One end of the heat dissipation diversion cylinder is fixedly and cooperatively connected with the base mounting plate, and ventilation through holes are formed at the joints of the base mounting plate and all the heat dissipation diversion cylinders.

[0007] Preferably, an installation negative pressure housing is fixedly and sealedly installed on the air flow guiding outer shell. A plurality of exhaust ports are fixedly arranged on the installation negative pressure housing. Each exhaust port is communicated with the inside of the installation negative pressure housing. The installation negative pressure housing is communicated with the inside of the heat dissipation diversion cylinder through the ventilation through hole. A negative pressure exhaust fan is rotatably arranged in each exhaust port.

[0008] Preferably, the light collimation chamber is fixedly installed on a ball head. The ball head is movably connected with a ball head seat through a ball pair connection method. The ball head seat is fixedly and cooperatively connected with the base mounting plate. Four circularly arrayed steering moving iron blocks are fixedly installed on the circumferential surface of the light collimation chamber. A steering electromagnet is magnetically cooperated with the side of each steering moving iron block. All the steering electromagnets are fixed on the inner wall of the heat dissipation diversion cylinder.

[0009] Preferably, a centering elastic tension strip bracket is also fixedly installed on the inner wall of the heat dissipation diversion cylinder. The centering elastic tension strip bracket and the outer surface of the light collimation chamber are elastically connected through a plurality of centering elastic tension strips with the same tension. The plurality of centering elastic tension strips jointly elastically limit the light collimation chamber at a position coaxial with the heat dissipation diversion cylinder.

[0010] Preferably, heat dissipation fins are fixedly arranged at positions on the outer surface of the light collimation chamber aligned with the LED light emitter to absorb the heat generated during the operation of the LED light emitter. A temperature sensor and a light sensor for detecting the temperature and optical state of the LED light emitter are arranged inside the light collimation chamber. A light sensor is arranged on the side of the sealing cover facing the plano-convex lens to detect the state of the light passing through the plano-convex lens.

[0011] Preferably, the heat dissipation guide cylinder is respectively provided with a first elastic film ring and a second elastic film ring at the positions of the outer lens and the heat sink. The outer ring of the first elastic film ring is fixedly fitted with the inner wall of the heat dissipation guide cylinder, and the inner ring of the first elastic film ring is arranged outside the heat sink. The outer ring of the second elastic film ring is fixedly fitted with the inner wall of the heat dissipation guide cylinder, and the inner ring of the second elastic film ring is fixedly fitted 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 in the present invention collaborates with the distributed LED lamp group module through the central control unit to adjust the illumination direction and intensity according to the driving scenario. This can not only meet the lighting needs in different scenarios, but also effectively reduce the glare to other vehicles and pedestrians, improving driving safety; (2) By controlling the swing angle of the plano-convex lens, the present invention reduces the light brightness without turning off the LED lamp, effectively extending the service life of the LED light-emitting body. In addition, the system combines a heat dissipation guide cylinder and a negative pressure exhaust device to continuously manage heat, ensuring the stable operation of the LED light-emitting body at a lower temperature; (3) When the vehicle changes lanes or overtakes, the system can automatically adjust the illumination range and angle of the light, providing a wider lighting field of view for the driver. Especially in the case of blind spot monitoring and in cooperation with the turn signal, it can effectively provide temporary lighting, enhancing driving safety. Description of the Drawings

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

[0014] Figure 2 It is a schematic diagram of the structure of the negative pressure housing 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 It is a schematic diagram of the supporting guide partition structure of the present invention.

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

[0018] Figure 6 It is Figure 5 a schematic diagram of the structure at position A in

[0019] Figure 7 It is a schematic diagram of the structure at the direction-changing electromagnet of the present invention.

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

[0021] Figure 9 It is Figure 8 a schematic diagram of the structure at position B in

[0022] In the figure: 101 - Installation negative pressure housing; 102 - Exhaust port; 103 - Negative pressure exhaust fan; 104 - Airflow guiding housing; 105 - Air intake window; 106 - Support and diversion partition; 107 - Base mounting plate; 108 - Ventilation perforation; 109 - Limit block; 110 - Heat dissipation and diversion cylinder; 111 - Air intake round hole; 112 - First elastic film ring; 113 - Second elastic film ring; 114 - Sealing cover; 115 - Outer lens; 116 - Light regulation chamber; 117 - Light collimation chamber; 118 - Collimating lens; 119 - LED light emitter; 120 - Edge plate frame; 121 - Planar lens; 122 - Light regulation swing arm; 123 - Regulation control electromagnet; 124 - Contact surface; 125 - Magnetic attraction block; 126 - Reset elastic tension bar; 127 - Heat sink; 128 - Centering elastic tension bar bracket; 129 - Centering elastic tension bar; 130 - Direction adjustment electromagnet; 131 - Direction adjustment moving iron block; 132 - Ball head; 133 - Ball head seat. Detailed implementation manners

[0023] The following is combined with the attached Figures 1-9 , and the technical solution of the present invention will be further described through specific implementation manners.

[0024] The present invention provides a matrix headlight control system based on CAN communication, which includes an air flow guiding housing 104. Two parallel support and diversion partitions 106 and a base mounting plate 107 parallel to the support and diversion partitions 106 are fixedly installed on the inner wall of the air flow guiding housing 104; an air intake window 105 is opened at the position of the air flow guiding housing 104 between the two support and diversion partitions 106; it further includes a plurality of LED lamp group modules, and all the LED lamp group modules are inserted on the support and diversion partitions 106; after the system is powered on, the central control unit and all the distributed LED lamp group modules first perform network initialization through the CAN bus to synchronize communication parameters; each LED lamp group module detects its own hardware status (power supply, sensor, drive circuit) through a self-check program, and then registers its own status parameters to the central control unit; at the same time, other vehicle systems (such as steering, vehicle speed, navigation) also transmit information to the central control unit through the CAN bus; the central control unit makes a decision based on the fused data, and intelligently selects different control modes according to the driving scenarios (such as curves, straight driving, overtaking, bad weather) to ensure that both the lighting requirements are met and glare can be prevented and the information prompt function can be realized; after the decision is made, the central control unit distributes the specific control instructions to each LED lamp group module through the CAN bus according to the node ID; after the microcontroller in each LED lamp group module receives the instruction, it makes fine adjustments according to the local detailed parameters (such as local temperature, current optical state); the LED lamp group module includes two fixedly connected and communicated dimming chambers 116 and a light collimation chamber 117. An LED light emitter 119 is fixedly arranged in the light collimation chamber 117, a planar lens 121 is rotatably arranged in the dimming chamber 116, and a collimating lens 118 is arranged between the planar lens 121 and the LED light emitter 119. The collimating lens 118 is used to collimate the divergent light beam emitted by the LED light emitter 119; a sealing cover 114 is fixedly arranged at one end of the dimming chamber 116 away from the light collimation chamber 117, and an outer lens 115 is embedded on the sealing cover 114. The outer lens 115 is coaxially arranged with the collimating lens 118 to form a sealed space for the light collimation chamber 117 and the dimming chamber 116.

[0025] The collimating lens 118 is fixedly arranged on the inner wall of the light collimation chamber 117; the planar lens 121 is fixedly installed between two parallel edge plate frames 120, and both of the two edge plate frames 120 are rotationally matched with the inner wall of the light dimming chamber 116. A light dimming swing arm 122 is rotatably arranged on the outer surface of the light dimming chamber 116. The light dimming swing arm 122 is fixedly matched with one of the edge plate frames 120 through a rotating shaft, and this rotating shaft is rotationally and sealingly matched with the light dimming chamber 116. One end of the light dimming swing arm 122 far from the edge plate frame 120 is fixedly provided with a magnetic attraction block 125. Below the magnetic attraction block 125, a regulation control electromagnet 123 is arranged. One surface of the regulation control electromagnet 123 facing the magnetic attraction block 125 is provided with a contact surface 124, and the contact surface 124 is in contact and cooperation with the magnetic attraction block 125. The regulation control electromagnet 123 and the magnetic attraction block 125 are in magnetic attraction cooperation; a reset elastic tension strip 126 is arranged at a position where the light dimming swing arm 122 is far from the regulation control electromagnet 123. One end of the reset elastic tension strip 126 is fixed to the light dimming chamber 116, and the other end of the reset elastic tension strip 126 is fixed to the light dimming swing arm 122; a limiting block 109 is fixedly arranged on the light dimming chamber 116 on the side where the light dimming swing arm 122 faces the reset elastic tension strip 126, and the limiting block 109 is used to limit the swing angle of the light dimming swing arm 122.

[0026] A heat dissipation diversion cylinder 110 is arranged outside the light collimation chamber 117 and the light dimming chamber 116. The heat dissipation diversion cylinder 110 is fixedly matched with the support diversion partition plate 106. A plurality of air intake round holes 111 are also opened on the heat dissipation diversion cylinder 110, and the air intake round holes 111 are located at positions between the two support diversion partition plates 106; one end of the heat dissipation diversion cylinder 110 is fixedly matched with the base mounting plate 107, and ventilation through holes 108 are opened at the joints of the base mounting plate 107 and all the heat dissipation diversion cylinders 110. An installation negative pressure housing 101 is also fixedly and sealingly installed on the air flow guiding housing 104. A plurality of exhaust ports 102 are fixedly arranged on the installation negative pressure housing 101, and each exhaust port 102 is communicated with the inside of the installation negative pressure housing 101. The installation negative pressure housing 101 and the inside of the heat dissipation diversion cylinder 110 are communicated through the ventilation through holes 108, and a negative pressure exhaust fan 103 is rotatably arranged in each exhaust port 102. The light collimation chamber 117 is fixedly installed on the ball head 132, and the ball head 132 is movably connected with 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 direction adjustment moving iron blocks 131 arranged in a circular array are fixedly installed on the circumferential surface of the light collimation chamber 117, and a direction adjustment electromagnet 130 is magnetically matched on the side of each direction adjustment moving iron block 131, and all the direction adjustment electromagnets 130 are fixed on the inner wall of the heat dissipation diversion cylinder 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 position with a tilted road surface, the illumination angle of the low beam is relatively high, which will affect oncoming vehicles. At this time, the adjustment control electromagnet 123 can be controlled. After the adjustment control electromagnet 123 is energized, it will attract the magnetic attraction block 125, and then drive the dimming swing arm 122 to swing. The dimming swing arm 122 drives the edge plate frame 120 to swing, and the edge plate frame 120 drives the plano lens 121 to swing. After the plano lens 121 swings, it will change the incident angle of the light entering the plano lens 121. At this time, the light is refracted and deviates from the original path (since it is not a single beam of light, so there will still be some light rays emitted from the outer lens 115, and some light rays are blocked by the dimming chamber 116 and the sealing cover 114), thereby reducing the intensity of the light passing through the plano lens 121. This method can reduce the light brightness without closing the LED light emitter 119. Similarly, when the high beam is turned on, the light will also affect oncoming vehicles. Therefore, the plano lens 121 at the position of the high beam can be controlled to swing (the LED light emitter 119 at the position of the high beam needs to use a larger power). Among them, the effect of the passing high beam is the same. The indication function of the light can be realized without extinguishing the LED light emitter 119, and the service life of the LED light emitter 119 can be greatly extended. When the adjustment control electromagnet 123 is de-energized (reset), under the elasticity of the reset elastic pull bar 126, the dimming swing arm 122 will swing to the position where it contacts the limit block 109, so that the light collimated by the plano lens 121 and the collimating lens 118 is perpendicular.

[0030] When turning on the turn signal or when a vehicle is overtaking from the rear (synchronized with the blind spot monitoring light), the lights on both the left and right sides can be adjusted to shine left front or right front, which can provide a wider illumination range (temporarily) for the driver; specifically, control the steering electromagnet 130 at the corresponding angle. The steering electromagnet 130 will attract the steering moving iron block 131, and then drive the steering moving iron block 131 to move. The steering moving iron block 131 drives the light collimation chamber 117 to move, and at the same time overcomes the pulling force of the centering elastic pull bar 129, thereby adjusting the angle of the light rays emitted from the outer lens 115. By controlling the magnetic attraction magnitude cooperation of the four steering electromagnets 130, the angle of the light rays emitted from the outer lens 115 can be controlled; for example, when driving on an inclined road, the light angle can be swung downward to let more light beams shine on the road surface.

[0031] When the LED light-emitting body 119 works for a long time, a large amount of heat will be generated. Therefore, it is necessary to start the negative-pressure exhaust fan 103. When the negative-pressure exhaust fan 103 starts, it will suck away the air inside the negative-pressure housing 101, then suck away the air inside the heat dissipation guide cylinder 110 through the ventilation perforation 108, and then suck away the air inside the air flow guide housing 104 through the air intake round hole 111. At this time, the inside of the air flow guide housing 104 is in a negative pressure state. Therefore, the outside cold air will enter the air flow guide housing 104 through the air intake window 105, forming a stable air flow. This part of the air will pass through the heat sink 127, so it will drive away the heat on the heat sink 127, and the temperature of the LED light-emitting body 119 will be transferred 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 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), and an outer lens (115) is embedded in the sealing cover (114). , 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 dimming chamber (116); the collimating lens (118) is fixedly arranged on the inner wall of the light collimating chamber (117); the plane lens (121) is fixedly installed 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 arranged 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, 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); 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), and the limit block (109) is used to limit the swing angle of the dimming swing arm (122); 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); 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).

2. The matrix headlight control system based on CAN communication according to claim 1, 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).

3. The matrix headlight control system based on CAN communication according to claim 2, 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).

4. The matrix headlight control system based on CAN communication according to claim 3, 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).

5. The matrix headlight control system based on CAN communication according to claim 4, 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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