Miniaturized vehicle-mounted central control camera module structure

Abstract

A miniaturized vehicle-mounted central control camera module structure provided by the present invention is characterized in that a top slot of an upper cover is provided with a lens, a camera module comprises a lens module capable of adjusting focusing and automatically resetting and a connecting line, the upper cover is internally provided with a cavity for installing the lens module, and the upper cover and a lower cover are buckled in a clamping manner. Two screws used for locking the lower cover are arranged at the end of the upper cover through threaded holes. Compared with the prior art, the camera module has the advantages that a conventional screw fixing mode is changed into a buckle fixing mode, so that the requirement on a fixed shell is reduced, and the utilization rate of the internal space of the camera module is higher; through the arrangement of the lens module, when the whole body is impacted or moves in an accelerated manner, focusing adjustment and automatic resetting are carried out through the lens module.

Description

Technical Field

[0001] The present invention relates to the technical field of cameras, and in particular to a miniaturized vehicle-mounted central control camera module structure. Background Art

[0002] With the continuous advancement of technology and the continuous expansion of application scenarios, the central control camera module is developing towards higher pixels, higher frame rates, wider viewing angles, etc. At the same time, with the popularization and application of artificial intelligence technology, camera modules will also be more integrated with artificial intelligence technology to achieve more efficient and intelligent information processing and application. For example, in the field of smart cars, camera modules will be integrated with other sensors such as radar and lidar to jointly build a more complete autonomous driving perception system; When the existing vehicle-mounted central control camera module structure is installed in a vehicle for use, the vehicle will accelerate when in motion, and unfortunately a collision will occur. These situations will cause the focal length of the camera to be changed, resulting in changes in camera clarity. In addition, the existing camera module fixes the outer cover with screws, resulting in the overall structure of the camera module being too large. Therefore, a miniaturized vehicle-mounted central control camera module structure is proposed. Summary of the invention

[0003] In order to solve at least one of the above-mentioned technical shortcomings, the present invention provides a miniaturized vehicle-mounted central control camera module structure, including a lens, an upper cover, a camera module, a lower cover and screws. The top groove of the upper cover is equipped with a lens. The camera module includes a lens module and a connecting line that can adjust the focus and automatically reset. The interior of the upper cover is provided with a cavity for installing the lens module. The upper cover and the lower cover are buckled together by snapping, and the end of the upper cover is provided with two screws for locking the lower cover through threaded holes.

[0004] Furthermore, the lens module includes a base, a lens connector is provided on the top of the base, a lens is provided on the top of the lens connector through a threaded connection, a focus reset mechanism for adjusting focus and automatic reset is provided between the lens and the lens connector, a circuit board is provided inside the base, and an imaging module, an image processing chip and a reset processing chip are installed on the circuit board.

[0005] Furthermore, 36 magnet fixing grooves are evenly arranged on the outer wall of the bottom of the lens, and neodymium iron boron magnets are fixedly connected inside the magnet fixing grooves. The focus resetting mechanism includes a stator and a rotor composed of a lens and a neodymium iron boron magnet. 36 coil cores for winding coils are evenly arranged on the stator, and a reset spring is provided on the edge of the upper surface of the stator, and the other end of the reset spring is fixedly connected to the lens connector.

[0006] Furthermore, two acceleration sensors are symmetrically arranged on the edge of the lower surface of the stator.

[0007] Furthermore, the lens is made of glass as a main body layer.

[0008] Furthermore, the lens is provided with a self-healing coating, an anti-reflective coating and a main body layer in sequence from top to bottom.

[0009] Furthermore, the self-healing coating is prepared by mixing isocyanate and polyol through a catalyst: bismuth butyrate in a ratio of 1 mol: 1.2 to 1.5 mol. Beneficial Effects

[0010] Compared with the prior art, the present invention uses a buckle fixing method instead of a conventional screw fixing method, thereby reducing the need for a fixed housing, thereby making the internal space utilization rate of the camera module higher; through the setting of the lens module, when the whole is hit or accelerated, the lens module is used to adjust the focus and automatically reset; When focusing, the focus reset mechanism includes a stator and a rotor composed of a lens and a neodymium iron boron magnet. At this time, the rotor and the stator constitute a brushless motor mechanism, which is driven by the brushless motor principle to rotate the lens, so that the lens engages with the thread of the lens connector, and the focal length of the lens is adjusted; When an impact or accelerated motion occurs, the sudden acceleration causes the lens to move, causing the focal length to be destroyed. At this time, the elastic force of the reset spring resets the mirror and the focus reset mechanism as a whole, and the position of the lens is roughly reset; By setting up two acceleration sensors, the movement of the lens by the acceleration sensor is monitored, and then the data is processed by the reset processing chip on the circuit board. After the data processing is completed, the lens is rotated by controlling the focus reset mechanism, thereby achieving accurate reset.

[0011] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the whole of the present invention.

[0013] Figure 2 It is a structural schematic diagram of the lens module of the present invention.

[0014] Figure 3 is a cross-sectional view of a lens module of the present invention.

[0015] Figure 4 It is a schematic structural diagram of the stator of the present invention.

[0016] Figure 5 It is a structural schematic diagram of the magnet fixing slot of the present invention.

[0017] exist Figures 1 to 5, the correspondence between the component names or lines and the figure numbers is: lens 1, upper cover 2, camera module 3, lens module 31, base 311, lens 312, magnet fixing groove 3121, lens connector 313, focus reset mechanism 314, stator 3141, NdFeB magnet 3142, reset spring 3143, circuit board 315, imaging module 316, image processing chip 317, acceleration sensor 318, reset processing chip 319, lower cover 4, screw 5. DETAILED DESCRIPTION

[0018] Please refer to Figures 1 to 5 ; The present embodiment provides a miniaturized vehicle-mounted central control camera module structure, comprising a lens 1, an upper cover 2, a camera module 3, a lower cover 4 and screws 5. The top of the upper cover 2 is slotted with the lens 1 installed. The camera module 3 comprises a lens module 31 capable of adjusting focus and automatic resetting and a connecting line. The interior of the upper cover 2 is provided with a cavity for installing the lens module 31. The upper cover 2 and the lower cover 4 are buckled together by means of a snap connection. The end of the upper cover 2 is provided with two screws 5 for locking the lower cover 4 through threaded holes. In specific implementation, the conventional screw fixing method is changed to a snap-on fixing method, which reduces the need for a fixed outer shell, thereby making the internal space utilization rate of the camera module higher.

[0019] Through the setting of the lens module 31, when the whole is hit or accelerated, the lens module 31 is used to adjust the focus and automatically reset.

[0020] Further, the lens module 31 includes a base 311, a lens connector 313 is provided on the top of the base 311, a lens 312 is provided on the top of the lens connector 313 through a threaded connection, a focus reset mechanism 314 for adjusting focus and automatic reset is provided between the lens 312 and the lens connector 313, a circuit board 315 is provided inside the base 311, and an imaging module 316, an image processing chip 317 and a reset processing chip 319 are installed on the circuit board 315; In a specific implementation, when focusing is performed, the lens 312 is rotated to perform focusing, and the lens 312 is driven by the focus reset mechanism 314 .

[0021] Furthermore, 36 magnet fixing grooves 3121 are evenly formed on the outer wall of the bottom of the lens 312, and NdFeB magnets 3142 are fixedly connected inside the magnet fixing grooves 3121. The focus reset mechanism 314 includes a stator 3141 and a rotor composed of the lens 312 and the NdFeB magnets 3142. 36 coil cores for winding coils are evenly formed on the stator 3141. A reset spring 3143 is provided on the edge of the upper surface of the stator 3141, and the other end of the reset spring 3143 is fixedly connected to the lens connector 313. In a specific implementation, when focusing, the focus reset mechanism 314 includes a stator 3141 and a rotor composed of a lens 312 and a neodymium iron boron magnet 3142. At this time, the rotor and the stator 3141 constitute a brushless motor mechanism, which is driven by the brushless motor principle to rotate the lens 312, so that the lens 312 engages with the thread of the lens connector 313, so that the focal length of the lens 312 is adjusted; When an impact or accelerated movement occurs, the sudden acceleration causes the lens 312 to move, causing the focal length to be destroyed. At this time, the elastic force of the reset spring 3143 resets the lens 312 and the focus reset mechanism 314 as a whole, and the position of the lens 312 is roughly reset.

[0022] Furthermore, two acceleration sensors 318 are symmetrically provided on the edge of the lower surface of the stator 3141; In a specific implementation, two acceleration sensors 318 are provided to monitor the movement of the lens 312 by the acceleration sensor 318, and then the data is processed by the reset processing chip 319 on the circuit board. After the data processing is completed, the focus reset mechanism 314 is controlled to rotate the lens 312, thereby achieving accurate reset; The reset processing chip 319 has a built-in reset data model trained by an AI model, which is used to accurately reset according to the movement of the lens 312; The reset data model contains the following: Threshold judgment: Set the motion threshold. When the acceleration exceeds a preset value, it is judged as an abnormal state (such as falling or severe vibration); Data smoothing: Use filtering algorithms (such as Kalman filtering) to process sensor data, eliminate noise, and obtain more stable state information; Control logic: When an abnormal state is detected, the deviation between the current position of the lens and the target position is determined (using encoder feedback); PID controller: Using PID (proportional-integral-differential) control algorithm, the motor rotation required for repair is calculated based on position deviation and speed to achieve precise control; P (Proportional): Calculates the repair strength based on the current deviation; I (Integral): Consider historical cumulative deviations and avoid long-term deviations; D (differential): predicts the rate of change of deviation and adjusts the response speed; Machine Learning Algorithms: Collect user shooting data, use machine learning models (such as decision trees or neural networks) to analyze lens behavior in different shooting scenarios, and optimize repair strategies.

[0023] Reinforcement learning: Through continuous trial and error, adjust the repair parameters (such as PID coefficients) to improve the repair effect; The advantage is that the reset is roughly reset through the mechanical layer and the reset is accurately reset through the software layer.

[0024] Furthermore, the lens 1 is made of glass as the main layer; In specific implementation, making the lens 1 out of glass is a common method in the prior art.

[0025] Furthermore, the lens 1 is provided with a self-healing coating, an anti-reflective coating and a main body layer in sequence from top to bottom; In specific implementation, the self-healing coating: a layer of self-healing polymer is applied to the surface of the lens to enhance scratch resistance; Anti-reflective coating: Increases light transmittance, reduces reflections, and improves image quality.

[0026] Further, the self-healing coating is prepared by mixing isocyanate and polyol through a catalyst: bismuth butyrate in a ratio of 1 mol: 1.2 to 1.5 mol; In a specific implementation, in a reaction kettle, the polyol and the catalyst are mixed and stirred evenly; Slowly add isocyanate, controlling the temperature (usually between 20-60°C); During the reaction, observe the viscosity change of the reactants to ensure that the reaction is sufficient; After the reaction is complete, the mixture is transferred to the surface of the lens 1 coated with the anti-reflective coating.

Claims

1. A miniaturized vehicle-mounted central control camera module structure, comprising a lens (1), an upper cover (2), a camera module (3), a lower cover (4) and screws (5), characterized in that: The top of the upper cover (2) is grooved to mount a lens (1); the camera module (3) comprises a lens module (31) capable of adjusting focus and automatic resetting and a connecting line; a cavity for mounting the lens module (31) is provided inside the upper cover (2); the upper cover (2) and the lower cover (4) are fastened together by means of a snap connection; and two screws (5) for locking the lower cover (4) are provided at the end of the upper cover (2) through threaded holes.

2. According to claim 1, a miniaturized vehicle-mounted central control camera module structure is characterized in that: The lens module (31) comprises a base (311), a lens connector (313) is provided on the top of the base (311), a lens (312) is provided on the top of the lens connector (313) via a threaded connection, a focus resetting mechanism (314) for adjusting focus and automatic resetting is provided between the lens (312) and the lens connector (313), a circuit board (315) is provided inside the base (311), and an imaging module (316), an image processing chip (317), and a resetting processing chip (319) are mounted on the circuit board (315).

3. According to claim 2, a miniaturized vehicle-mounted central control camera module structure is characterized in that: The outer wall of the bottom of the lens (312) is evenly provided with 36 magnet fixing grooves (3121), and the interior of the magnet fixing grooves (3121) is fixedly connected with a neodymium iron boron magnet (3142). The focus resetting mechanism (314) comprises a stator (3141) and a rotor composed of the lens (312) and the neodymium iron boron magnet (3142). The stator (3141) is evenly provided with 36 coil cores for winding coils. A resetting spring (3143) is provided on the edge of the upper surface of the stator (3141), and the other end of the resetting spring (3143) is fixedly connected to the lens connecting member (313).

4. According to claim 3, a miniaturized vehicle-mounted central control camera module structure is characterized in that: Two acceleration sensors (318) are symmetrically arranged on the edge of the lower surface of the stator (3141).

5. According to claim 4, a miniaturized vehicle-mounted central control camera module structure is characterized in that: The lens (1) is made of glass as the main body layer.

6. A miniaturized vehicle-mounted central control camera module structure according to claim 5, characterized in that: The lens (1) is provided with a self-healing coating, an anti-reflection coating and a main body layer in sequence from top to bottom.

7. A miniaturized vehicle-mounted central control camera module structure according to claim 6, characterized in that: The self-healing coating is prepared by mixing isocyanate and polyol with a catalyst: bismuth butyrate in a ratio of 1 mol: 1.2 to 1.5 mol.

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