Adjusting system and adjusting method for head-up display height

Abstract

The invention provides a head-up display height adjusting system and method, and the system comprises a driver monitoring unit which is used for measuring a plurality of groups of coordinate data of the center points of the two eyes of a driver; the processing unit is used for calculating and generating height mean value data of center points of two eyes of the driver according to the multiple groups of coordinate data, and generating a corresponding head-up display height grade according to the height mean value data; and the display control unit is used for adjusting the display height of the head-up display according to the head-up display height level. According to the method, the eye position of the driver is automatically adapted, the height of the head-up display image is automatically adapted, the operation convenience is improved, and the vehicle use learning cost of the driver is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile head-up display, and in particular to a head-up display height adjustment system and adjustment method. Background Art

[0002] Head-Up Display (HUD) is an advanced driver assistance technology that uses the principle of optical reflection to project vehicle information, navigation instructions and other important driving data directly onto the windshield in front of the driver or onto a specially designed transparent screen. This design allows the driver to obtain necessary driving information without having to look down at the instrument panel or central control screen, thereby improving driving safety and convenience.

[0003] In order to ensure that the HUD information can be clearly seen in the driver's optimal field of view, most vehicles equipped with the HUD function provide a height adjustment option. In the prior art, the HUD height adjustment operation usually relies on the driver to manually perform it through the vehicle display screen or physical buttons, which has technical problems such as cumbersome operation and high learning cost. Therefore, there is room for improvement. Summary of the invention

[0004] In view of the shortcomings of the prior art mentioned above, the purpose of the present invention is to provide a head-up display height adjustment system and adjustment method, which is used to solve the technical problems in the prior art that the HUD height adjustment operation relies on the driver to manually perform it through the vehicle display screen or physical buttons, which has cumbersome operation and high learning cost.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides a head-up display height adjustment system, comprising:

[0006] A driver monitoring unit, used to measure and obtain multiple sets of coordinate data of the center points of the driver's eyes;

[0007] A processing unit, configured to calculate and generate average height data of the center points of the driver's eyes according to the plurality of sets of coordinate data, and generate a corresponding head-up display height level according to the average height data;

[0008] The display control unit is used to adjust the display height of the head-up display according to the head-up display height level.

[0009] In one embodiment of the present invention, the head-up display height adjustment system further includes:

[0010] The driver's seat occupancy sensor is used to generate and send an occupancy signal when a pressure value greater than a threshold is detected;

[0011] Wherein, the processing unit is further used to generate an image acquisition instruction when receiving the occupancy signal;

[0012] The driver monitoring unit is also used to measure and obtain multiple sets of coordinate data of the center points of the driver's eyes according to the image acquisition instruction.

[0013] In one embodiment of the present invention, the head-up display height adjustment system further includes:

[0014] The driver's seat occupancy sensor is used to generate and send an occupancy signal when a pressure value greater than a threshold is detected;

[0015] An interactive display unit, used to generate and send input instructions based on user operations;

[0016] Wherein, the processing unit is further used to respond to the input instruction and generate an image acquisition instruction when receiving the placeholder signal;

[0017] The driver monitoring unit is used to measure and obtain multiple sets of coordinate data of the center points of the driver's eyes according to the image acquisition instruction.

[0018] In one embodiment of the present invention, the processing unit is further configured to generate vacant position prompt information when receiving the input instruction and not receiving the placeholder signal;

[0019] The interactive display unit is also used to play the vacancy prompt information.

[0020] In one embodiment of the present invention, the driver monitoring unit comprises:

[0021] A camera, used to collect multiple facial feature images of the driver within a preset collection time;

[0022] The monitoring controller is used to calculate and generate multiple sets of coordinate data of the center points of the driver's eyes based on the multiple facial feature images.

[0023] In one embodiment of the present invention, the processing unit is further configured to determine whether all coordinate data within the preset acquisition time is within a preset human eye center position adaptation range:

[0024] If not, deleting all coordinate data within the preset acquisition time;

[0025] If yes, then determine whether the height difference between the center points of any two sets of coordinate data is less than the preset height jump threshold:

[0026] If yes, then calculate the average center point height of all the coordinate data within the preset acquisition time, and record the average center point height as the average height data of the center points of the driver's eyes;

[0027] If not, all coordinate data within the preset acquisition time period are deleted.

[0028] In one embodiment of the present invention, the processing unit is further used to retrieve a preset comparison table of the driver's eye center height and head-up display height level according to the height mean data to obtain a corresponding head-up display height level.

[0029] In one embodiment of the present invention, within a preset reminder time, the processing unit is further configured to generate collection prompt information when the amount of received coordinate data is lower than a preset value;

[0030] The interactive display unit is also used to play the collection prompt information;

[0031] The display control unit is further used to control the head-up display to display according to the collected prompt information.

[0032] In one embodiment of the present invention, within the preset reminder time, the processing unit is further configured to generate an end instruction when the amount of received coordinate data is lower than a preset value;

[0033] The driver monitoring unit is further configured to terminate the collection according to the termination instruction.

[0034] The present invention also provides a method for adjusting the height of a head-up display, which is characterized by comprising:

[0035] Measure and obtain multiple sets of coordinate data of the center points of the driver's eyes;

[0036] Calculate and generate the average height data of the center points of the driver's eyes according to the plurality of sets of coordinate data, and generate the corresponding head-up display height level according to the average height data;

[0037] The display height of the head-up display is adjusted according to the head-up display height level.

[0038] As described above, a head-up display height adjustment system and adjustment method of the present invention have the following beneficial effects: the present invention automatically adapts the head-up display image height by automatically adapting to the driver's eye position, thereby increasing the convenience of operation and reducing the cost of the driver's learning to use the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A structural block diagram of a head-up display height adjustment system provided in an embodiment of the present invention;

[0040] Figure 2 A schematic flow chart of a method for adjusting the height of a heads-up display provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0041] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0042] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0043] In the following description, numerous details are discussed to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0044] First of all, it should be noted that the height adjustment of the car's head-up display (HUD) is to ensure that the driver can clearly see the displayed information without affecting the line of sight of the road ahead. The correct height setting not only allows the driver to obtain necessary driving data without diverting his sight, but also avoids visual fatigue or distraction caused by improper HUD position. In the prior art, the HUD height adjustment operation usually relies on the driver to manually perform it through the car display screen or physical buttons, and multiple adjustment attempts are required to obtain the appropriate height, which has technical problems such as cumbersome operation and high learning cost.

[0045] The present invention provides a head-up display height adjustment system and adjustment method, which relates to the field of automobile technology and can be specifically applied to solve the technical problem that the height adjustment operation of the HUD in the prior art is cumbersome and the learning cost is high. The present invention can adapt to the driver's eye position and automatically adjust the head-up display image height, thereby improving the convenience of use and reducing the learning cost of the driver's use of the car. The following is a detailed description through specific embodiments.

[0046] See also Figure 1In one embodiment of the present invention, the head-up display height adjustment system may include: a driver monitoring unit 200, a processing unit 300, a display control unit 400 and a head-up display 500. The driver monitoring unit 200 may be used to measure and obtain multiple sets of coordinate data of the center points of the driver's eyes. The processing unit 300 may also be used to calculate and generate the average height data of the center points of the driver's eyes according to the multiple sets of coordinate data measured by the driver monitoring unit 200; and then generate the corresponding head-up display height level according to the calculated average height data. The display control unit 400 may be used to adjust the image display height of the head-up display 500 according to the head-up display height level generated by the processing unit 300. The processing unit 300 may also be used to generate corresponding prompt information during the execution of the above process.

[0047] In one embodiment of the present invention, the head-up display height adjustment system may further include a driver's seat occupancy sensor 100. The driver's seat occupancy sensor 100 can sense the pressure change on the seat to determine whether a driver is sitting. If the pressure value detected is greater than a threshold, that is, there is a driver sitting on the driver's seat, the driver's seat occupancy sensor 100 may generate and send an occupancy signal.

[0048] In one embodiment of the present invention, the head-up display height adjustment system may further include an interactive display unit 600. The interactive display unit 600 may be used to display the prompt information output by the processing unit 300. The interactive display unit 600 may also provide an interactive interface, through which it may receive a user's input command. Specifically, the user may click on a preset head-up display height adjustment button on the interactive interface of the interactive display unit 600. After detecting the user's click operation, the interactive display unit 600 may generate and send an input command based on the user operation. The processing unit 300 responds to the input command and generates an image acquisition command upon receiving an occupancy signal sent by the main driver's occupancy sensor 100, thereby activating the head-up display height adjustment process.

[0049] In one embodiment of the present invention, when the head-up display height adjustment process starts, the processing unit 300 first detects whether there is a driver in the main driver's seat through the main driver's seat occupancy sensor 100. The main driver's seat occupancy sensor 100 can sense the pressure change on the seat to determine whether there is a driver sitting. If there is no driver sitting in the main driver's seat, the processing unit 300 can exit the head-up display height adjustment process and generate vacant seat prompt information. The processing unit 300 can send the vacant seat prompt information to the interactive display unit 600, and the interactive display unit 600 plays the vacant seat prompt instruction to prompt the user. In addition, the processing unit 300 can also send the vacant seat prompt information to the display control unit 400, and the display control unit 400 controls the head-up display 500 to display information according to the vacant seat prompt information. In this embodiment, the vacant seat prompt information can be, for example, "there is no one sitting in the main driver's seat, and automatic adjustment cannot be performed." If there is a driver sitting in the main driver's seat, the main driver's seat occupancy sensor 100 can generate and send an occupancy signal. The processing unit 300 may be configured to generate an image acquisition instruction upon receiving the occupancy signal, and send the image acquisition instruction to the driver monitoring unit 200 .

[0050] See also Figure 1 In one embodiment of the present invention, the driver monitoring unit 200 may include a camera 210 and a monitoring controller 220. The camera 210 may be used to obtain multiple facial feature images of the driver within a preset acquisition time. The monitoring controller 220 may be used to perform recognition calculations on the multiple facial feature images obtained by the camera 210, thereby obtaining coordinate data, which represents the coordinates of the center points of the driver's eyes relative to the vehicle coordinate system, and may be recorded as (X n , Y n , Z n In this embodiment, the origin of the vehicle coordinate system is set at the center of mass (i.e., the center of gravity) of the vehicle, the positive direction of the X-axis points to the front direction of the vehicle, the positive direction of the Y-axis points to the right direction of the vehicle, and the positive direction of the Z-axis points to the vertical upward direction.

[0051] In this embodiment, after the driver monitoring unit 200 receives the image acquisition instruction from the processing unit 300, the camera 210 needs to capture the image within a preset acquisition time (T auto ), obtain m facial feature images; then the monitoring controller 220 generates m sets of coordinate data of the center points of both eyes based on the m facial feature images, which are recorded as (X1, Y1, Z1), ... (X m , Y m , Z m ); Finally, the monitoring controller 220 transmits the m sets of coordinate data of the center points of the two eyes to the processing unit 300.

[0052] In one embodiment of the present invention, the processing unit 300 is further configured to generate a collection prompt message when the amount of received coordinate data is lower than a preset value within a preset reminder time. The interactive display unit 600 is further configured to play the collection prompt message. The display control unit 400 is further configured to control the head-up display 500 to display the collection prompt message according to the collection prompt message.

[0053] In this embodiment, if the number of coordinate data received by the processing unit 300 is lower than the preset value (i.e., m) within the preset first reminder time (T1), a first prompt message can be generated. In this embodiment, the first reminder time is greater than the preset collection time. The processing unit 300 can send the first prompt message to the interactive display unit 600, and the interactive display unit 600 plays the first prompt message. In addition, the processing unit 300 can also send the first prompt message to the display control unit 400, and the display control unit 400 controls the head-up display 500 to display information according to the first prompt message. In this embodiment, the first prompt message may be, for example, "Please maintain a correct driving posture and look forward." Subsequently, the processing unit 300 can continue to wait for the coordinate data collected by the driver monitoring unit 200.

[0054] In this embodiment, if at the preset second reminder time (T mexit ), if the number of coordinate data received by the processing unit 300 is still lower than the preset value (i.e., m), an end instruction and a second prompt message may be generated. In this embodiment, the second reminder time is greater than the first reminder time. The processing unit 300 may send an end instruction to the driver monitoring unit 200. The driver monitoring unit 200 ends collecting the facial image features of the driver according to the end instruction. At the same time, the processing unit 300 may send the second prompt message to the interactive display unit 600 and the display control unit 400. Among them, the interactive display unit 600 may play the second prompt message. The display control unit 400 may control the head-up display 500 to display information according to the second prompt message. In this embodiment, the second prompt message may be, for example, "No valid information was identified, adjustment failed."

[0055] In this embodiment, if the processing unit 300 receives the coordinate data collected by the driver monitoring unit 200 within the reminder time, the head-up display height level can be generated based on the m sets of coordinate data of the center points of the eyes.

[0056] In one embodiment of the present invention, after receiving the coordinate data of the m groups of the center points of the eyes from the driver monitoring unit 200, the processing unit 200 first needs to determine whether all the coordinate data are within the preset human eye center position adaptation range, that is, the coordinate points in the Y direction of each group of coordinate data meet the following conditions: min ≤Y m ≤Ymax If not, the processing unit 200 deletes all coordinate data within the current preset acquisition time; if satisfied, the processing unit 200 further determines the difference Z between the center point heights (i.e., Z-axis coordinates) of any two sets of coordinate data. gap Is it within the preset height threshold Z? adjust Inside, that is, Z gap ≤Z adjust . If satisfied, the processing unit 200 may calculate the mean of the Z-axis coordinates of all coordinate data, and record the calculation result as the mean height data of the center point of the driver's eyes; if not satisfied, the processing unit 200 deletes all coordinate data within the current preset acquisition time. In this embodiment, if the coordinate data within the current preset acquisition time does not meet the above two restriction conditions, and the head-up display height adjustment process is exited due to the failure to meet the conditions, the processing unit 200 may delete all coordinate data within the current preset acquisition time, and use all coordinate data within the next preset acquisition time for re-judgment.

[0057] In one embodiment of the present invention, the mean height data Z of the center points of the driver's eyes is actual The following formula can be satisfied:

[0058] Z actual =(Z1+…+Z m ) / m

[0059] Furthermore, according to the comparison table of the height of the center point of the driver's eyes and the height level of the head-up display, as shown in Table 1, the height mean data Z can be obtained. actual The corresponding head-up display level LvI.

[0060] Table 1 Comparison table of driver's eye center height and head-up display height level

[0061] Height of human eye center Heads-up display height level LvI <![CDATA[Z actual <Z min ]]> No adjustment <![CDATA[Z min ≤Z actual <Z1]]> Level1 <![CDATA[Z1≤Z actual <Z2]]> Level2 …… ……… <![CDATA[Z max-2 ≤Z actual <Z max-1 ]]> Level(max-1) <![CDATA[Z max-1 ≤Z actual ≤Z max ]]> Level(max) <![CDATA[Z max <Z actual ]]> No adjustment

[0062] In one embodiment of the present invention, after the processing unit 200 generates the head-up display height level LvI, it can be sent to the display control unit 400. The display control unit 400 can adjust the display height of the head-up display 500 by starting the servo motor of the head-up display 500 according to the head-up display height level.

[0063] It is understandable that when the present invention automatically adjusts the head-up display height, in order to better meet functional requirements, the system will further perform driving scene analysis and define the timing of automatically adjusting the head-up display height, rather than real-time matching by eye tracking, so as to reduce the jitter problem caused by frequent adjustments during driving. This method dynamically obtains the adaptation height and optimizes the algorithm to reduce the occurrence of misrecognition and incorrect adaptation of the head-up display height.

[0064] In one embodiment of the present invention, the user pre-enables the adaptive head-up display height adjustment setting in the vehicle system. In this state, when the main driver's seat occupancy sensor 100 detects that the main driver's seat changes from an unoccupied state to an occupied state, the main driver's seat occupancy sensor 100 generates an occupancy signal and transmits the occupancy signal to the processing unit 300. The processing unit 300 can automatically activate the head-up display height adjustment process based on the occupancy signal without the user having to operate the interactive display unit. At this time, the head-up display height adjustment system can be automatically adjusted in the manner described in the above embodiment.

[0065] See also Figure 2 The present invention further provides a method for adjusting the height of a head-up display, which can be applied to the head-up display height adjustment system of any of the above embodiments. The adjustment method may include the following steps:

[0066] Step S100, measuring and obtaining multiple sets of coordinate data of the center points of the driver's eyes;

[0067] Step S200, calculating and generating the average height data of the center points of the driver's eyes according to the multiple sets of coordinate data, and generating the corresponding head-up display height level according to the average height data;

[0068] Step S300: adjusting the display height of the head-up display according to the head-up display height level.

[0069] In one embodiment of the present invention, when step S100 is executed, multiple sets of coordinate data of the center points of the driver's eyes are measured. Specifically, the main driver's seat occupancy sensor 100 can sense the pressure changes on the seat to determine whether there is a driver sitting. If there is a driver sitting in the main driver's seat, the main driver's seat occupancy sensor 100 can generate and send an occupancy signal. The processing unit 300 can be used to generate an image acquisition instruction when receiving the occupancy signal, and send the image acquisition instruction to the driver monitoring unit 200. After the driver monitoring unit 200 receives the image acquisition instruction from the processing unit 300, the camera 210 needs to capture the image within a preset acquisition time (T auto ), obtain m facial feature images; then the monitoring controller 220 generates m sets of coordinate data of the center points of both eyes based on the m facial feature images, which are recorded as (X1, Y1, Z1), ... (X m , Y m , Z m ); Finally, the monitoring controller 220 transmits the m sets of coordinate data of the center points of the two eyes to the processing unit 300.

[0070] In one embodiment of the present invention, when executing step S400, that is, according to the multiple sets of coordinate data, the height average data of the center points of the driver's eyes is calculated and generated, and according to the height average data, the corresponding head-up display height level is generated. Specifically, after receiving the coordinate data of the center points of the m sets of eyes from the driver monitoring unit 200, the processing unit 200 first needs to determine whether all the coordinate data are within the preset human eye center position adaptation range, that is, the Y coordinate point in each set of coordinate data satisfies: Y min ≤Y m ≤Y max If not, the processing unit 200 deletes all coordinate data within the current preset acquisition time; if satisfied, the processing unit 200 further determines the difference Z between the center point heights (i.e., Z-axis coordinates) of any two sets of coordinate data. gap Is it within the preset height threshold Z? adjust Inside, that is, Z gap ≤Z adjust . If satisfied, the processing unit 200 may calculate the mean of the Z-axis coordinates of all coordinate data, and record the calculation result as the mean height data of the center point of the driver's eyes; if not satisfied, the processing unit 200 deletes all coordinate data within the current preset acquisition time. In this embodiment, if the coordinate data within the current preset acquisition time does not meet the above two restriction conditions, and the head-up display height adjustment process is exited due to the failure to meet the conditions, the processing unit 200 may delete all coordinate data within the current preset acquisition time, and use all coordinate data within the next preset acquisition time for re-judgment.

[0071] In one embodiment of the present invention, the mean height data Z of the center points of the driver's eyes is actual The following formula can be satisfied:

[0072] Z actual =(Z1+…+Z m ) / m

[0073] Furthermore, according to the comparison table of the height of the center point of the driver's eyes and the height level of the head-up display, as shown in Table 1, the height mean data Z can be obtained. actual The corresponding head-up display level LvI.

[0074] In one embodiment of the present invention, when step S500 is executed, the display height of the head-up display is adjusted according to the head-up display height level. Specifically, after the processing unit 200 generates the head-up display height level LvI, it can be sent to the display control unit 400. The display control unit 400 can adjust the display height of the head-up display 500 by starting the servo motor of the head-up display 500 according to the head-up display height level.

[0075] In summary, the present invention discloses a head-up display height adjustment system and adjustment method, which relate to the field of automobile head-up display technology. The present invention automatically adapts the head-up display image height by automatically adapting to the driver's eye position, thereby increasing the convenience of operation and reducing the cost of the driver's learning to use the vehicle. In addition, all the units and sensors involved in the adjustment system of the present invention are existing components of the current vehicle, and automatic adjustment can be achieved through the integration of the system and the implementation method without the need to increase the hardware cost. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0076] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A head-up display height adjustment system, characterized in that: include: A driver monitoring unit, used to measure and obtain multiple sets of coordinate data of the center points of the driver's eyes; A processing unit, configured to calculate and generate average height data of the center points of the driver's eyes according to the plurality of sets of coordinate data, and generate a corresponding head-up display height level according to the average height data; The display control unit is used to adjust the display height of the head-up display according to the head-up display height level.

2. The head-up display height adjustment system according to claim 1, characterized in that: The head-up display height adjustment system also includes: The driver's seat occupancy sensor is used to generate and send an occupancy signal when a pressure value greater than a threshold is detected; Wherein, the processing unit is further used to generate an image acquisition instruction when receiving the placeholder signal; The driver monitoring unit is also used to measure and obtain multiple sets of coordinate data of the center points of the driver's eyes according to the image acquisition instruction.

3. The head-up display height adjustment system according to claim 1, characterized in that: The head-up display height adjustment system also includes: The driver's seat occupancy sensor is used to generate and send an occupancy signal when a pressure value greater than a threshold is detected; An interactive display unit, used to generate and send input instructions based on user operations; Wherein, the processing unit is further used to respond to the input instruction and generate an image acquisition instruction when receiving the placeholder signal; The driver monitoring unit is used to measure and obtain multiple sets of coordinate data of the center points of the driver's eyes according to the image acquisition instruction.

4. The head-up display height adjustment system according to claim 3, characterized in that: The processing unit is further configured to generate vacancy prompt information when receiving the input instruction and not receiving the placeholder signal; The interactive display unit is also used to play the vacancy prompt information.

5. The head-up display height adjustment system according to claim 1, characterized in that: The driver monitoring unit comprises: A camera, used to collect multiple facial feature images of the driver within a preset collection time; The monitoring controller is used to calculate and generate multiple sets of coordinate data of the center points of the driver's eyes based on the multiple facial feature images.

6. The head-up display height adjustment system according to claim 1, characterized in that: The processing unit is further used to determine whether all coordinate data within the preset acquisition time is within a preset human eye center position adaptation range: If not, deleting all coordinate data within the preset acquisition time; If yes, then determine whether the height difference between the center points of any two sets of coordinate data is less than the preset height jump threshold: If yes, then calculate the average height of the center points of all the coordinate data within the preset acquisition time, and record the average height of the center points as the average height data of the center points of the driver's eyes; If not, all coordinate data within the preset acquisition time period are deleted.

7. The head-up display height adjustment system according to claim 1, characterized in that: The processing unit is further used to retrieve a preset comparison table of the height of the center point of the driver's eyes and the height level of the head-up display according to the height mean data, and obtain a corresponding height level of the head-up display.

8. The head-up display height adjustment system according to claim 3, characterized in that: The processing unit is further configured to generate collection prompt information when the amount of received coordinate data is lower than a preset value within a preset reminder time; The interactive display unit is also used to play the collection prompt information; The display control unit is further used to control the head-up display to display according to the collected prompt information.

9. The head-up display height adjustment system according to claim 3, characterized in that: The processing unit is further configured to generate an end instruction when the amount of received coordinate data is lower than a preset value within a preset reminder time; The driver monitoring unit is further configured to terminate the collection according to the termination instruction.

10. A method for adjusting the height of a head-up display, characterized in that: include: Measure and obtain multiple sets of coordinate data of the center points of the driver's eyes; Calculate and generate the average height data of the center points of the driver's eyes according to the plurality of sets of coordinate data, and generate the corresponding head-up display height level according to the average height data; The display height of the head-up display is adjusted according to the head-up display height level.

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