An in-vehicle rotating screen with automatic adjustment based on face recognition and its working method

Abstract

The present invention relates to an in-vehicle rotating screen with automatic face recognition adjustment in the field of in-vehicle display devices. A camera unit is integrated on the display screen. The camera unit collects face information and outputs a signal to the face recognition module. The face recognition module performs user face recognition and face information entry on the input signal of the camera unit. At the same time, the face recognition module transmits the face information to the single-chip microcomputer control module. After calculation, the single-chip microcomputer control module sends a signal to the motor drive module in real time. The motor drive module is used to drive Motor 1 and Motor 2 to achieve two-degree-of-freedom rotation of the display screen. At the same time, the best display effect is given according to the distance information of the face. By performing face recognition on the driver, the present invention realizes automatic rotation adjustment in cooperation with the driver, facilitating the driver to view the screen information or operate the screen preferentially, and the display screen has a stable posture during driving, which can improve driving safety.

Description

Technical Field

[0001] The present invention relates to an in-vehicle display device, and particularly to an in-vehicle display screen automatically adjusted based on face recognition and its working method. Background Art

[0002] Among the rotation mechanisms of various in-vehicle displays known in the market at present, such as the rotating screens in BYD and Wuling models, most of them only rotate in a single direction to cooperate with display functions, map navigation, etc., that is, rotate in the vertical-horizontal direction. With the continuous development of intelligent cockpits, the display screen can more achieve specific functions such as visual reversing and fault detection. However, this single rotation method cannot meet the human-machine interaction needs. During driving, the driver cannot view the screen information in time or control various electrical components in the vehicle to deal with sudden situations and fault problems in the vehicle.

[0003] Its deficiencies are as follows:

[0004] 1. For existing in-vehicle display devices, their stability is poor. Often due to vehicle bumps and vibrations, the display screen deviates from its original position. Not only does it need to be reset, but it also needs to maintain a stable posture during use.

[0005] 2. Existing in-vehicle display devices cannot achieve two-degree-of-freedom adjustment.

[0006] 3. Existing in-vehicle display devices cannot adjust the size of the displayed specific information according to the distance between the user and the display screen. Often the text or pattern of the displayed information is too small, resulting in the user needing to get close to the display screen to see and identify the content clearly, bringing potential safety hazards to driving. Summary of the Invention

[0007] The purpose of the present invention is to overcome the defects of the prior art and provide an in-vehicle rotating screen automatically adjusted based on face recognition and its working method. It mainly realizes automatic rotation adjustment in cooperation with the driver by performing face recognition on the driver, facilitating the driver to view the screen information preferentially or control the screen, and can keep the display screen in a stable posture during driving.

[0008] The purpose of the present invention is achieved as follows: An in-vehicle rotating screen automatically adjusted based on face recognition includes a base for fixing inside the vehicle body. A motor one is installed on the base. The output shaft of the motor one is connected to a rotating shaft one. The rotating shaft one is fixed to a connecting plate. The connecting plate is fixed to a support one. A motor two is arranged inside the support one. The output shaft end of the motor two is connected to a rotating shaft two. A stepped shaft sleeve is sleeved outside the rotating shaft two. The shaft sleeve is fixed to the back of the display screen. A support two is sleeved outside the shaft sleeve. The shaft sleeve is rotatably connected to the support two. The support two is fixedly connected to the support one;

[0009] A step is provided at the root of the first rotating shaft. A support sleeve is sleeved outside the first rotating shaft. The lower end of the support sleeve abuts against the step at the root of the first rotating shaft. A first friction plate is provided at the upper end of the support sleeve. A second friction plate is provided corresponding to the first friction plate. The friction surfaces of the first friction plate and the second friction plate face each other. The second friction plate is pushed by a first spring and abuts against the second friction plate;

[0010] A third friction plate and a fourth friction plate with facing friction surfaces are sleeved outside the shaft sleeve with a gap. One side of the third friction plate is fixed to the step at the root of the shaft sleeve. The outer ring of the fourth friction plate is connected to the second bracket, so that the fourth friction plate is fixed circumferentially and can move axially. A spring seat and a pressure regulating nut are provided on the shaft sleeve. The second spring is arranged between the fourth friction plate and the spring seat. The pressure regulating nut pushes the fourth friction plate through the spring seat and abuts against the third friction plate;

[0011] The display screen is integrated with a camera unit. The camera unit collects face information and outputs a signal to the face recognition module. The face recognition module performs user face recognition and face information entry on the input signal of the camera unit; the face recognition module simultaneously transmits the face information to the single-chip microcomputer control module. The single-chip microcomputer control module sends a signal to the motor drive module in real time after calculation; the motor drive module is used to drive the first motor and the second motor to realize the two-degree-of-freedom rotation of the display screen. At the same time, the best display effect is given according to the distance information of the face.

[0012] When the device works, in cooperation with software control, the two-degree-of-freedom rotation of the display screen can be realized, so as to give the best display effect according to the distance information of the face. Improve the safety of driving. In terms of structure, the first friction plate and the second friction plate form a set of damping structures, and the third friction plate and the fourth friction plate form another set of damping structures, ensuring that vibrations such as bumps and shakes during driving will not cause abnormalities in the first motor and the second motor. The connection structure between the support sleeve and the first rotating shaft ensures the stability of the first motor, and the connection structure between the second bracket and the shaft sleeve ensures the stability of the second motor, so that the display screen can also maintain good stability during vehicle movement. Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention realizes automatic rotation adjustment in cooperation with the driver by performing face recognition on the driver, which is convenient for the driver to view the screen information or operate the screen preferentially, and can keep the posture of the display screen stable during driving. It can improve driving safety.

[0013] Further, a plurality of clamping portions are provided on the second bracket, and corresponding clamping holes are provided on the first bracket. The clamping portions are clamped in the clamping holes to fix the second bracket to the first bracket. The second bracket can be detached from the first bracket together with the display screen and the second motor, making its installation and connection more convenient.

[0014] Further, the base includes a flat plate support portion at the bottom, on which a cylindrical connection portion is inclined. The side of the cylindrical connection portion is a semi-closed structure. A first limiting groove is provided at the top of the cylindrical connection portion. The upper end of the first rotating shaft is provided with an eccentric shaft offset from the rotating shaft of the first motor. The eccentric shaft is inserted into the first limiting groove. One end of the first spring is supported on the inner side of the top of the cylindrical connection portion, and the other end is supported on the second friction plate. This structure further ensures the stability of the first rotating shaft. Both ends of the first rotating shaft are supported, making its operation more stable. At the same time, the first limiting groove provides limitation. When the eccentric shaft rotates to the limit position of the first limiting groove, it cannot continue to rotate, avoiding interference between the rotating display screen and other objects in the vehicle body during rotation.

[0015] Further, a spring groove is provided on the fourth friction plate, and the second spring is arranged in the spring groove. A toothed ring is provided on the outer circumference of the second friction plate, and a tooth hole cooperating with the toothed ring is provided on the second bracket. The matching of the toothed ring and the tooth hole forms an indirect support for the second rotating shaft, that is, the second bracket forms a support for the second rotating shaft through the toothed ring, the fourth friction plate, the third friction plate and the shaft sleeve. This indirect support cooperates with the support at the rotation connection position of the second bracket and the shaft sleeve, making the stability of the second rotating shaft better.

[0016] Further, a second limiting groove is provided on the second bracket. A limiting screw is connected to the back of the display screen, and the limiting screw is inserted into the second limiting groove. A locking nut is installed on the limiting screw. The angle occupied by the second limiting groove along the circumference of the rotating shaft of the second motor is not less than 90°. In this way, on the one hand, the display screen can be allowed to rotate between the landscape screen and the portrait screen, and there is still a certain amount of rotational adjustment margin after rotation. On the other hand, the display screen and the second bracket can be locked and fixed through the locking nut, thereby restricting the operation of the second motor.

[0017] The present invention provides the above-mentioned working method of an in-vehicle rotating screen based on automatic adjustment by face recognition, including the following steps:

[0018] Step 1, user facial information collection and entry: After the vehicle is powered on, when the user turns the face to the camera unit, when the user activates the in-vehicle rotating screen based on automatic adjustment by face recognition for the first time in the cockpit, the camera unit on the rotating screen will collect the facial information of the face, enter it into the face recognition module, and upload it to the in-vehicle network cloud. The face recognition information entered into the system is corresponded with the recorded display screen position information through the cloud server.

[0019] Step 2, the camera unit gives priority to face recognition of the driver's seat position. When it is recognized that the user faces the display screen for a set duration, an electrical signal will be sent to the single-chip microcomputer control module. After receiving the signal, the single-chip microcomputer control module activates the real-time rotation mode.

[0020] Step 3, when it is recognized that the user's facial information exists in the in-vehicle network cloud, directly call the last adjusted display screen position information and rotate it into place; when it is recognized that the user's facial information is that of a new user, then with the horizontal position of the display screen parallel to the line connecting the two pupils of the human eyes as the target, drive the second motor to adjust horizontally and rotate it into place; at the same time, drive the first motor to rotate until the display screen faces the human face directly;

[0021] Step 4, enter the real-time working mode:

[0022] 1 Real-time rotation mode, the face recognition module continuously collects facial information through the camera unit and inputs the recognized information to the single-chip microcomputer control module. After receiving the signal, the single-chip microcomputer control module determines the distance and position of the facial information and adjusts it through the motor drive module; record the average value of the position adjustment information and upload it to the in-vehicle network cloud to prepare for the next use;

[0023] 2 Real-time display mode:

[0024] Adjust the display information of the display screen according to the facial distance, including the display sizes of text, lines, and set marks, and perform proportional scaling display by comparing the real-time value with the set value.

[0025] The beneficial effect of its working method lies in that this method can not only perform adjustments in two degrees of freedom, but also adjust the size of the displayed specific information according to the distance between the user and the display screen to achieve the best display effect. To improve the user's judgment ability and ensure driving safety. Brief Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of the present invention.

[0027] Figure 2 It is Figure 1 The partial enlarged view of A in

[0028] Figure 3 It is Figure 2 The B-B partial sectional view of

[0029] Figure 4 It is Figure 1 The partial enlarged view of C in

[0030] Figure 5 It is a schematic structural diagram of the connection between the first limit groove on the base and the eccentric shaft.

[0031] Figure 6 It is a schematic structural diagram of the second limit groove and the limit screw.

[0032] In the figure, 1 is the output shaft of the first motor, 2 is the first rotating shaft, 3 is the support sleeve, 4 is the first friction plate, 5 is the second friction plate, 6 is the first spring, 7 is the eccentric shaft, 8 is the connecting plate, 9 is the first bracket, 10 is the second motor, 11 is the second bracket, 1101 is the clamping portion, 1102 is the second limiting groove, 12 is the display screen, 13 is the imaging unit, 14 is the second rotating shaft, 15 is the shaft sleeve, 16 is the locking nut, 17 is the first motor, 18 is the base, 1801 is the first limiting groove, 1802 is the cylindrical connecting portion, 1803 is the flat plate supporting portion, 19 is the spring seat, 20 is the fourth friction plate, 2001 is the gear ring, 2002 is the spring groove, 21 is the third friction plate, 22 is the pressure regulating nut, 23 is the second spring, 24 is the bearing. Detailed implementation mode

[0033] As Figures 1-6 shown, it is a vehicle-mounted rotating screen based on automatic adjustment of face recognition, including a base 18 for fixing in the vehicle body. A first motor 17 is installed on the base 18. The output shaft 1 of the first motor is connected to a first rotating shaft 2. The first rotating shaft 2 is fixed to a connecting plate 8. The connecting plate 8 is fixed to a first bracket 9. A second motor 10 is arranged in the first bracket 9. The output shaft end of the second motor 10 is connected to a second rotating shaft 14. A stepped shaft sleeve 15 is sleeved outside the second rotating shaft 14. The shaft sleeve 15 is fixed to the back of the display screen 12. A second bracket 11 is sleeved outside the shaft sleeve 15. The shaft sleeve 15 and the second bracket 11 are connected by a bearing 24 so that the two are rotatably connected. The second bracket 11 and the first bracket 9 are fixedly connected by a clamping method; several clamping portions 1101 are provided on the second bracket 11, and corresponding clamping holes are provided on the first bracket 9. The clamping portions 1101 are clamped in the clamping holes to fix the second bracket 11 and the first bracket 9.

[0034] A step is provided at the root of the first rotating shaft 2. A support sleeve 3 is sleeved outside the first rotating shaft 2. The lower end of the support sleeve 3 abuts against the root step of the first rotating shaft 2. A first friction plate 4 is provided at the upper end of the support sleeve 3. A second friction plate 5 is provided corresponding to the first friction plate 4. The friction surfaces of the first friction plate 4 and the second friction plate 5 face each other. The second friction plate 5 is pushed by a spring 6 to abut against the first friction plate 5.

[0035] A third friction plate 21 and a fourth friction plate 20 with friction surfaces facing each other are sleeved outside the shaft sleeve 15 with a gap. One side of the third friction plate 21 is fixed to the root step of the shaft sleeve 15. The outer ring of the fourth friction plate 20 is connected to the second bracket 11 to make the fourth friction plate 20 circumferentially fixed and axially movable. A spring seat 19 and a pressure regulating nut 22 are provided on the shaft sleeve 15. A second spring 23 is arranged between the fourth friction plate 20 and the spring seat 19. The pressure regulating nut 22 pushes the fourth friction plate 20 through the spring seat 19 to abut against the third friction plate 21.

[0036] The camera unit 13 is integrated on the display screen 12. The camera unit 13 can be set at the central position of the upper part of the display screen 12. The camera unit 13 collects face information and outputs signals to the face recognition module. The face recognition module performs user face recognition and face information entry on the input signals of the camera unit 13. At the same time, the face recognition module transmits the face information to the single-chip microcomputer control module. After calculation, the single-chip microcomputer control module sends signals to the motor drive module in real time. The motor drive module is used to drive the first motor 17 and the second motor 10 to realize the two-degree-of-freedom rotation of the display screen 12. At the same time, the best display effect is given according to the distance information of the face.

[0037] The second bracket 11 can be detached from the first bracket 9 together with the display screen 12 and the second motor 10, making its installation and connection more convenient.

[0038] The base 18 includes a flat support part 1803 at the bottom. A cylindrical connection part 1802 is inclined on the flat support part 1803. The side of the cylindrical connection part 1802 is a semi-closed structure. A first limit groove 1801 is provided at the top of the cylindrical connection part 1802. The upper end of the first rotating shaft 2 is provided with an eccentric shaft 7 offset from the rotating shaft of the first motor 17. The eccentric shaft 7 is inserted into the first limit groove 1801. One end of the first spring 6 is supported on the inner side of the top of the cylindrical connection part 1802, and the other end is supported on the second friction plate 5. This structure further ensures the stability of the first rotating shaft 2. Both ends of the first rotating shaft 2 are supported, making its operation more stable. At the same time, the first limit groove 1801 provides limitation. When the eccentric shaft 7 rotates to the limit position of the first limit groove 1801, it cannot continue to rotate, avoiding interference between the display screen 12 and other objects in the vehicle body during rotation.

[0039] A spring groove 2002 is provided on the fourth friction plate 20. The second spring 23 is arranged in the spring groove 2002. A toothed ring 2001 is provided on the outer circumference of the second friction plate 5. Tooth holes are provided on the second bracket 11 for mating installation with the toothed ring 2001. The matching of the toothed ring 2001 and the tooth holes forms an indirect support for the second rotating shaft 14, that is, the second bracket 11 forms a support for the second rotating shaft 14 through the toothed ring 2001, the fourth friction plate 20, the third friction plate 21 and the shaft sleeve 15. This indirect support cooperates with the support at the rotation connection position of the second bracket 11 and the shaft sleeve 15, making the stability of the second rotating shaft 14 better.

[0040] There is a second limiting groove 1102 on the second bracket 11. A limiting screw is connected to the back of the display screen 12. The limiting screw is inserted into the second limiting groove 1102, and a locking nut 16 is installed on the limiting screw. The second limiting groove 1102 occupies an angle of not less than 90° along the circumferential direction of the rotating shaft of the second motor 10. In this way, on the one hand, the display screen 12 can be allowed to rotate between the landscape screen and the portrait screen, and there is still a certain amount of rotational adjustment margin after rotation. On the other hand, the display screen 12 and the second bracket can be locked and fixed through the locking nut 16, thereby restricting the operation of the second motor 10.

[0041] When the device works, in cooperation with software control, the two-degree-of-freedom rotation of the display screen 12 can be realized, so as to give the best display effect according to the distance information of the human face. The driving safety is improved. In terms of structure, the first friction plate 4 and the second friction plate 5 form a set of damping structures, and the third friction plate 21 and the fourth friction plate 20 form another set of damping structures, ensuring that vibrations such as bumps and shakes during driving will not cause abnormalities in the first motor 17 and the second motor 10. The connection structure between the support sleeve 3 and the first rotating shaft 2 ensures the stability of the first motor 17, and the connection structure between the second bracket 11 and the bushing 15 ensures the stability of the second motor 10, so that the display screen 12 can also maintain good stability during vehicle movement. Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention realizes automatic rotation adjustment in cooperation with the driver by performing face recognition on the driver, which is convenient for the driver to view the screen information or operate the screen preferentially, and can keep the posture of the display screen 12 stable during driving.

[0042] The working method of the above-mentioned vehicle-mounted rotating screen automatically adjusted based on face recognition includes the following steps:

[0043] Step 1, user face information collection and entry: After the vehicle is powered on, the user turns his face to the camera unit 13. When the user activates the vehicle-mounted rotating screen automatically adjusted based on face recognition in the cockpit for the first time, the camera unit 13 on the rotating screen will collect the face information of the human face, enter it into the face recognition module, and upload it to the vehicle-mounted network cloud. The face recognition information entered into the system is corresponding to the recorded position information of the display screen 12 through the cloud server.

[0044] Step 2, the camera unit 13 performs priority face recognition on the driver's seat position. When it is recognized that the user faces the display screen 12 for a set duration, an electrical signal will be sent to the single-chip microcomputer control module. After receiving the signal, the single-chip microcomputer control module activates the real-time rotation mode.

[0045] Step 3: When it is recognized that the user's facial information exists in the in-vehicle network cloud, directly call the position information of the last adjusted display screen 12 and rotate it into place; when it is recognized that the user's facial information is that of a new user, take the parallelism between the horizontal position of the display screen 12 and the line connecting the two pupils of the human eyes as the target, drive the second motor 10 to adjust horizontally and rotate it into place; at the same time, drive the first motor 17 to rotate to make the display screen 12 face the human face directly.

[0046] Step 4: Enter the real-time working mode:

[0047] 1 Real-time rotation mode: The face recognition module continuously collects facial information through the camera unit 13 and inputs the recognized information to the single-chip microcomputer control module. After receiving the signal, the single-chip microcomputer control module determines the distance and position of the facial information and adjusts it through the motor drive module; record the average value of the position adjustment information and upload it to the in-vehicle network cloud to prepare for the next use.

[0048] 2 Real-time display mode:

[0049] Adjust the display information of the display screen 12 according to the facial distance, including the display sizes of text, lines, and set marks, and perform proportional scaling display by comparing the real-time value with the set value.

[0050] In this display mode, the following sub-modes can be available:

[0051] Sub-mode 1: Perform overall image scaling, that is, as the user's face moves away, the image is directly enlarged to facilitate the user's observation and recognition of useful information in the image. After the graphic is enlarged, some useless information is displayed outside the screen, which does not affect normal use. When the distance is close, the image is reduced, but the minimum will be full-screen display and will not be reduced further. For example, when displaying parameters such as engine oil, water temperature, and engine speed, this sub-mode can be adopted.

[0052] Sub-mode 2: Use software to extract useful information from the display screen. For example, in the map navigation mode, take the road name and the speed limit sign by the roadside as useful information. The text or pattern of the useful information displayed on the map can be scaled according to the distance between the user and the camera unit 13, while the map itself is not scaled. The filtered useful information can further help the user drive safely and obtain road conditions and vehicle conditions information in a timely manner.

[0053] The present invention is not limited to the above embodiments. Based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and deformations to some technical features without creative labor according to the disclosed technical content, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A vehicle-mounted rotating screen with automatic adjustment based on face recognition, characterized in that: It includes a base for fixing inside the vehicle body. A first motor is installed on the base. The output shaft of the first motor is connected to a first rotating shaft. The first rotating shaft is fixed to a connecting plate, and the connecting plate is fixed to a first bracket. A second motor is arranged inside the first bracket. The output shaft end of the second motor is connected to a second rotating shaft. A stepped shaft sleeve is sleeved outside the second rotating shaft, and the shaft sleeve is fixed to the back of the display screen. A second bracket is sleeved outside the shaft sleeve, and the shaft sleeve is rotatably connected to the second bracket. The second bracket is fixedly connected to the first bracket; A step is provided at the root of the first rotating shaft. A support sleeve is sleeved outside the first rotating shaft. The lower end of the support sleeve abuts against the step at the root of the first rotating shaft. A first friction plate is provided at the upper end of the support sleeve. A second friction plate is provided corresponding to the first friction plate. The friction surfaces of the first friction plate and the second friction plate face each other. The second friction plate is pushed by a first spring to abut against the first friction plate; A third friction plate and a fourth friction plate with facing friction surfaces are sleeved outside the shaft sleeve with a gap. One side of the third friction plate is fixed to the step at the root of the shaft sleeve. The outer ring of the fourth friction plate is connected to the second bracket, so that the fourth friction plate is fixed circumferentially and axially movable. A spring seat and a pressure regulating nut are provided on the shaft sleeve. A second spring is arranged between the fourth friction plate and the spring seat. The pressure regulating nut pushes the fourth friction plate through the spring seat to abut against the third friction plate; A camera unit is integrated on the display screen. The camera unit collects face information and outputs a signal to a face recognition module. The face recognition module performs user face recognition and face information entry on the input signal of the camera unit; the face recognition module simultaneously transmits the face information to a single-chip microcomputer control module. The single-chip microcomputer control module sends a signal to a motor drive module in real time after calculation; the motor drive module is used to drive the first motor and the second motor to realize the two-degree-of-freedom rotation of the display screen. At the same time, the best display effect is given according to the distance information of the face; The base includes a flat plate support part at the bottom. A cylindrical connection part is obliquely arranged on the flat plate support part. The side surface of the cylindrical connection part is a semi-closed structure. A first limit groove is provided at the top of the cylindrical connection part. The upper end of the first rotating shaft is provided with an eccentric shaft offset from the rotating shaft of the first motor. The eccentric shaft is inserted into the first limit groove. One end of the first spring is supported on the inner side of the top of the cylindrical connection part, and the other end is supported on the second friction plate.

2. The vehicle-mounted rotating screen based on automatic adjustment by face recognition according to claim 1, wherein: A plurality of clamping parts are provided on the second bracket, and corresponding clamping holes are provided on the first bracket. The clamping parts are clamped in the clamping holes to fix the second bracket to the first bracket.

3. The vehicle-mounted rotating screen based on automatic adjustment by face recognition according to claim 1, wherein: A spring groove is provided on the fourth friction plate. The second spring is arranged in the spring groove. A toothed ring is provided on the outer circumference of the fourth friction plate. A tooth hole for cooperating with the toothed ring is provided on the second bracket.

4. The vehicle-mounted rotating screen based on automatic adjustment by face recognition according to claim 1, characterized in that: A second limit groove is provided on the second bracket. A limit screw is connected to the back of the display screen. The limit screw is inserted into the second limit groove, and a locking nut is installed on the limit screw.

5. The vehicle-mounted rotating screen based on automatic adjustment by face recognition according to claim 4, characterized in that: The angle occupied by the second limit groove along the circumference of the rotating shaft of the second motor is not less than 90°; 6. The working method of an in-vehicle rotating screen based on automatic adjustment by face recognition according to claim 1, characterized in that It includes the following steps: Step 1, User Facial Information Collection and Input: After the vehicle is powered on, the user turns their face towards the camera unit. When the user first activates the in-vehicle rotating screen with automatic adjustment based on face recognition in the cockpit, the camera unit on the rotating screen will collect the user's facial information, input it into the face recognition module, and upload it to the in-vehicle network cloud. The face recognition information entered into the system will be corresponded with the recorded display screen position information through the cloud server; Step 2, The camera unit gives priority to face recognition of the driver's seat position. When it recognizes that the user has faced the display screen for a set duration, it will send an electrical signal to the microcontroller control module. After receiving the signal, the microcontroller control module activates the real-time rotation mode; Step 3, When it recognizes that the user's facial information exists in the in-vehicle network cloud, it directly calls the previously adjusted display screen position information and rotates it into place; when it recognizes that the user's facial information is that of a new user, it aims to make the horizontal position of the display screen parallel to the line connecting the two pupils of the human eyes, drives Motor 2 to adjust horizontally and rotate into place; at the same time, drives Motor 1 to rotate until the display screen faces the person's face directly; Step 4, Enter the real-time working mode: 1 Real-time rotation mode, the face recognition module continuously collects facial information through the camera unit and inputs the recognized information to the microcontroller control module. After receiving the signal, the microcontroller control module determines the distance and position of the facial information and adjusts it through the motor drive module; records the average value of the position adjustment information and uploads it to the in-vehicle network cloud to prepare for the next use; 2 Real-time display mode: Adjust the display information of the display screen according to the facial distance, including the display size of text, lines, and set marks, and perform proportional scaling display by comparing the real-time value with the set value.

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