Vehicle head-up display control method, apparatus and system, and computer-readable storage medium

Abstract

A vehicle head-up display control method, apparatus and system, and a computer-readable storage medium. A vehicle comprises a first display screen, a second display screen, a third display screen and a projection display screen, wherein the projection display screen comprises a first projection display region, a second projection display region and a third projection display region, and display content of the first display screen, display content of the second display screen and display content of the third display screen are respectively projected onto the first projection display region, the second projection display region and the third projection display region. The method comprises: acquiring an in-vehicle image collected by an image collection apparatus, and on the basis of the acquired in-vehicle image, determining an optimal screen visible range of a driver; receiving a first input, wherein the first input is used for selecting at least one of a first display screen, a second display screen and a third display screen for projection display; and on the basis of the optimal screen visible range of the driver, controlling the display screen, which is selected by means of the first input, to perform projection display.

Description

Vehicle head-up display control method, device, system and computer readable storage medium

[0001] The present application claims priority from the Chinese patent application No. 202410833738.X filed on June 25, 2024 and entitled "Vehicle head-up display control method, device, system and computer readable storage medium", the contents of which should be understood as incorporated by reference into the present application. TECHNICAL FIELD

[0002] Embodiments of the present disclosure relate to, but are not limited to, the technical field of display, and in particular to a vehicle head-up display control method, device, system and computer readable storage medium. BACKGROUND

[0003] A vehicle configured with a head-up display (HUD) system can display important driving information, such as speed, engine revolutions, fuel consumption, etc. in the driver's field of view in real time, so that the driver can observe the information on the instrument panel without lowering his head, avoiding distracting the driver's attention from the road ahead, and at the same time, the driver does not need to adjust the eye focal length between observing the distant road and the nearby instrument, which can avoid eye fatigue, greatly enhance the driving safety performance and improve the driving experience.

[0004] The head-up display system in the related art usually adopts three times projection reflection, which has a long projection distance, and the projected image will coincide with the field of view through the front windshield of the car, which is suitable for displaying speed, traffic signs, and part of navigation information, etc., but is not suitable for displaying complex navigation, entertainment and other complex display information. Some car manufacturers have begun to focus on panoramic head-up display systems (Panoramic HUD, PHUD), which use one-time projection reflection to project the image of the projection source to the lower black printed area of the windshield, and the display width can be as long as the width of the windshield, which is suitable for displaying complex navigation, entertainment and other complex display information. However, the current panoramic head-up display system has the following problems:

[0005] (1) The projection source is an integrated long strip large screen, which has a very high cost, and when one area is damaged, the display of the entire screen will be affected.

[0006] (2) The position and viewing angle of different people in the car will affect the viewing effect, but since the position inside the car is fixed, it is difficult for the driver or other passengers to adjust the position and viewing angle to adjust the viewing effect. SUMMARY

[0007] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0008] The embodiment of the present disclosure provides a control method of a vehicle head-up display, the vehicle comprising a first display screen, a second display screen, a third display screen and a projection display screen, the projection display screen comprising a first projection display area, a second projection display area and a third projection display area, display content of the first display screen being projected to the first projection display area, display content of the second display screen being projected to the second projection display area, display content of the third display screen being projected to the third projection display area, the control method comprising: acquiring an in-vehicle image collected by an image collection device, determining an optimal screen visible range of a main driver according to the acquired in-vehicle image; receiving a first input, the first input being used for selecting at least one display screen of the first display screen, the second display screen and the third display screen for projection display; controlling the display screen selected in the first input to perform projection display according to the optimal screen visible range of the main driver.

[0009] The embodiment of the present disclosure also provides a control method of a vehicle head-up display, the vehicle comprising a first display screen, a second display screen, a third display screen and a projection display screen, the projection display screen comprising a first projection display area, a second projection display area and a third projection display area, display content of the first display screen being projected to the first projection display area, display content of the second display screen being projected to the second projection display area, display content of the third display screen being projected to the third projection display area, the control method comprising: acquiring an in-vehicle image collected by an image collection device, determining an optimal screen visible range of a main driver and whether there is a co-driver according to the acquired in-vehicle image; when there is no co-driver, controlling at least one of the first display screen, the second display screen and the third display screen to perform projection display according to the optimal screen visible range of the main driver; when there is a co-driver, receiving a second input, the second input being used for selecting whether to refer to an optimal viewing range of the co-driver, controlling at least one of the first display screen, the second display screen and the third display screen to perform projection display according to the optimal screen visible range of the main driver and the second input.

[0010] The embodiment of the present disclosure also provides a control device of a vehicle head-up display, comprising: a processor and a memory storing a computer program capable of running on the processor, wherein the processor implements the steps of the control method of the vehicle head-up display when running the program.

[0011] The embodiment of the present disclosure also provides a computer readable storage medium, the computer readable storage medium storing executable instructions, the executable instructions being executed by a processor to implement the control method of the vehicle head-up display according to any one of the above.

[0012] The embodiment of the present disclosure further provides a computer program product, comprising instructions, when the computer program product is executed by a computer, the instructions perform the control method of the vehicle head-up display according to any one of the above.

[0013] The embodiment of the present disclosure further provides a control system of a vehicle head-up display, comprising an image acquisition device, a first master control unit, a control unit and a display unit, the display unit comprising a first display screen, a second display screen and a third display screen, and a projection display screen, the projection display screen comprising a first projection display area, a second projection display area and a third projection display area, the display content of the first display screen being projected to the first projection display area, the display content of the second display screen being projected to the second projection display area, and the display content of the third display screen being projected to the third projection display area, wherein: the image acquisition device is configured to acquire an in-vehicle image; the first master control unit is configured to acquire the in-vehicle image acquired by the image acquisition device, determine the optimal screen visible range of the primary driver according to the acquired in-vehicle image, receive a first input, the first input being used to select at least one display screen of the first display screen, the second display screen and the third display screen for projection display, send a first control instruction to the control unit according to the optimal screen visible range of the primary driver and the first input, and send second display data to at least one of the first display screen, the second display screen and the third display screen; the control unit is configured to receive the first control instruction of the first master control unit, and control the projection area position and the projection angle of the corresponding display screen according to the first control instruction; and the display unit is configured to receive the second display data of the first master control unit, and perform projection display according to the second display data.

[0014] The embodiment of the present disclosure further provides a control system of a vehicle head-up display, comprising: an image acquisition device, a second master control unit, a control unit and a display unit, the display unit comprising a first display screen, a second display screen and a third display screen and a projection display screen, the projection display screen comprising a first projection display area, a second projection display area and a third projection display area, the display content of the first display screen being projected to the first projection display area, the display content of the second display screen being projected to the second projection display area, and the display content of the third display screen being projected to the third projection display area, wherein: the image acquisition device is configured to acquire an in-vehicle image; the second master control unit is configured to acquire the in-vehicle image acquired by the image acquisition device, determine the optimal screen visible range of the main driver and whether there is a co-driver according to the acquired in-vehicle image; when there is no co-driver, send a first control instruction to the control unit according to the optimal screen visible range of the main driver, and send second display data to at least one of the first display screen, the second display screen and the third display screen; when there is a co-driver, receive a second input, the second input being used to select whether to refer to the optimal viewing range of the co-driver, send a third control instruction to the control unit according to the optimal screen visible range of the main driver and the second input, and send fourth display data to at least one of the first display screen, the second display screen and the third display screen; the control unit is configured to receive the first control instruction or the third control instruction of the second master control unit, and control the projection area position and the projection angle of the corresponding display screen according to the first control instruction or the third control instruction; and the display unit is configured to receive the second display data or the fourth display data of the second master control unit, and project and display according to the second display data or the fourth display data.

[0015] The control method, device, system and computer readable storage medium of the vehicle head-up display of the embodiment of the present disclosure can realize the effect of integrated penetration by setting multiple display screens for projection and making the projection images of the multiple display screens spliced and fused, can reduce the cost while realizing panoramic head-up display, and when a certain area in a display screen is damaged, the projection display of other display screens will not be affected; by determining the optimal screen visible range of the main driver according to the in-vehicle image, receiving a first input, and controlling the display screen selected in the first input to project and display according to the optimal screen visible range of the main driver, the viewing effect of the main driver can be enhanced, and the driving safety of the main driver can be ensured.

[0016] Other aspects can be apparent to those of ordinary skill in the art after a reading of the attached figures and detailed description.

[0017] SUMMARY

[0018] The accompanying drawings are used to provide further understanding of the technical solutions of the present disclosure, and form a part of the specification, and are used to explain the technical solutions of the present disclosure together with the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions of the present disclosure. The shapes and sizes of the components in the drawings do not reflect true proportions, and the purpose is only to schematically illustrate the present disclosure.

[0019] Fig. 1 is a flowchart of a control method of a vehicle head-up display according to an exemplary embodiment of the present disclosure.

[0020] Fig. 2 is a schematic diagram of a position of a projection display screen according to an exemplary embodiment of the present disclosure.

[0021] Fig. 3 is a schematic diagram of a division method of the projection display screen in Fig. 2.

[0022] Fig. 4 is a schematic diagram of a projection method of a display screen according to an exemplary embodiment of the present disclosure.

[0023] Fig. 5A is a schematic diagram of a structure of a screen rotating device connected to a display screen according to an exemplary embodiment of the present disclosure.

[0024] Fig. 5B is a sectional view of AA in Fig. 5A.

[0025] Fig. 6 is a schematic diagram of a camera shooting according to an exemplary embodiment of the present disclosure.

[0026] Fig. 7 is a mapping diagram of an image plane of a camera according to an exemplary embodiment of the present disclosure.

[0027] Fig. 8 is a schematic diagram of a measurement method of an optimal visible width according to an exemplary embodiment of the present disclosure.

[0028] Fig. 9 is a flowchart of another control method of a vehicle head-up display according to an exemplary embodiment of the present disclosure.

[0029] Fig. 10 is a schematic diagram of a control between a master control unit and each display screen according to an exemplary embodiment of the present disclosure.

[0030] Fig. 11 is a flowchart of still another control method of a vehicle head-up display according to an exemplary embodiment of the present disclosure.

[0031] Figs. 12A and 12B are schematic diagrams of structures of control systems of vehicle head-up displays according to exemplary embodiments of the present disclosure.

[0032] Figs. 13 and 14 are schematic diagrams of structures of control devices of vehicle head-up displays according to exemplary embodiments of the present disclosure.

[0033] Detailed description

[0034] The present disclosure describes a number of embodiments, but this description is exemplary rather than limiting and, as will be apparent to those ordinary skill in the art, many more embodiments and implementations are possible within the scope of the embodiments described in the present disclosure. Although a number of possible combinations of features have been set forth in the accompanying figures and discussed above, many other combinations of features are possible. Unless specifically intended otherwise, any feature or element of any embodiment can be utilized in any other embodiment, whether or not that particular combination of features is specifically discussed anywhere in the present document. Furthermore, features and elements described herein can be applied to and / or combined with any of the other embodiments.

[0035] The present disclosure includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed herein can also be combined with any conventional feature or element to form a unique application of the presently claimed disclosure. Any feature or element of any embodiment can also be combined with features or elements from other applications to form another unique application of the presently claimed disclosure. Accordingly, it will be understood that any feature shown and / or discussed in the present disclosure can be implemented alone or in any suitable combination. Accordingly, the embodiments are not to be restricted, except as by the appended claims and their equivalents. Furthermore, various modifications and changes can be made within the scope of the appended claims.

[0036] Furthermore, in describing representative embodiments, the specification can have presented the method and / or process as a particular sequence of steps. However, to the extent that the method or process depends on more than one step, the method or process should not be limited to the particular sequence of steps described. Other sequences of steps can be possible, and are within the scope of the present disclosure. Therefore, the particular order of the steps set forth in the specification is not an limitation on the claims. Further, the claims should not be limited to the steps of the method and / or process in the order in which they are written, as other sequences of steps can be possible and are within the scope of the present disclosure.

[0037] The embodiments of the present disclosure provide a control method of a vehicle head-up display, the vehicle comprising a first display screen, a second display screen, a third display screen and a projection display screen, the projection display screen comprising a first projection display area, a second projection display area and a third projection display area, display content of the first display screen being projected to the first projection display area, display content of the second display screen being projected to the second projection display area, display content of the third display screen being projected to the third projection display area, as shown in FIG. 1, the control method comprising:

[0038] In step 101, an in-vehicle image collected by an image collection device is acquired, and an optimal screen visible range of a main driver is determined according to the acquired in-vehicle image.

[0039] In step 102, a first input is received, and the first input is used to select at least one display screen of the first display screen, the second display screen and the third display screen for projection display.

[0040] In step 103, the display screen selected in the first input is controlled to perform projection display according to the optimal screen visible range of the main driver.

[0041] The control method of the vehicle head-up display provided by the embodiments of the present disclosure can realize the effect of one body by splicing and fusing the projection images of the multiple display screens, can reduce the cost while realizing panoramic head-up display, and can not affect the projection display of other display screens when a certain area of one display screen is damaged. The optimal screen visible range of the main driver is determined according to the in-vehicle image, the first input is received, and the display screen selected in the first input is controlled to perform projection display according to the optimal screen visible range of the main driver, so that the viewing effect of the main driver can be enhanced, and the driving safety of the main driver can be ensured.

[0042] In the embodiments of the present disclosure, the number of display screens can be three or more than three, and only three display screens are taken as an example in the following description.

[0043] In the embodiments of the present disclosure, the screen sizes of the first display screen, the second display screen and the third display screen can be the same from the perspective of optimal cost, but the present disclosure is not limited thereto, and the first display screen, the second display screen and the third display screen can also be display screens with different screen sizes when special needs exist.

[0044] As shown in FIG. 2, the projection display screen can include a partial area of the left A-pillar close to the bottom, a printed area of the lower side of the windshield, and a partial area of the right A-pillar close to the bottom.

[0045] As shown in FIG. 2, the projection display screen of the embodiments of the present disclosure includes the partial areas of the left A-pillar and the right A-pillar close to the bottom, and thus has a certain curvature, which is more friendly to the observation of the driver. The driver does not need to twist the head by a large angle to observe the partial areas of the left A-pillar or the right A-pillar close to the bottom, and some auxiliary display information for driving of the driver, such as a rearview mirror image when reversing, can be displayed in the areas.

[0046] In the embodiments of the present disclosure, as shown in FIG. 3, the projection display screen is divided into three regions: a first projection display region on the left (which can include a part of the left A-pillar near the bottom and a part of the printed region on the lower left side of the windshield), a second projection display region in the middle (which can include a part of the printed region on the lower middle side of the windshield), and a third projection display region on the right (which can include a part of the right A-pillar near the bottom and a part of the printed region on the lower right side of the windshield). For example, the three projection display regions can each display the following display information, but the present disclosure is not limited thereto:

[0047] The first projection display region: the main driver display screen, i.e., the instrument panel, for displaying information about the working conditions of various systems of the vehicle.

[0048] The second projection display region: the central control display screen, for displaying information about the air conditioner, audio, navigation, etc. of the vehicle.

[0049] The third projection display region: the co-driver display screen, for displaying entertainment information for the co-driver, etc.

[0050] In the embodiments of the present disclosure, the width and height of the three projection display regions, i.e., the first projection display region, the second projection display region, and the third projection display region, can be adjusted as needed. Since there are individual differences in the observation range of objects for different people, for example, the eye level of a tall person will be higher, and the eye level of a short person will be lower. In order to set a more reasonable display range of the screen of each projection display region, the situation of the main driver or the co-driver needs to be judged and understood.

[0051] Since the main driver or the co-driver ultimately sees the display content projected on the projection display screen, as shown in FIG. 4, the position and projection angle of each display screen will affect the position and size of the projection image of each display screen. In order to better adapt to the viewing effect of the main driver or the co-driver, the display width and display height of the projection image of each display screen can be adjusted adaptively according to the situation of the main driver or the co-driver, so as to obtain the best projection display effect.

[0052] As shown in FIGS. 5A and 5B, the first display screen, the second display screen and the third display screen are respectively connected with a corresponding screen rotating device, the screen rotating device includes two micro-motors, and rotating shafts are fixedly connected to two sides of output ends of the motors. The rotating shafts can control rotation in front-back and left-right directions, so that the first display screen, the second display screen and the third display screen can rotate in two directions, i.e. front-back and left-right directions around the rotating shaft origin. The rotating angles of the first display screen, the second display screen and the third display screen are respectively controlled by the control unit according to received angle information required to be rotated. If there is enough space inside the cabin, an up-down direction lifting rod can be added, so that adjustment can be made in three degrees of freedom.

[0053] The specific method of adjustment is determined according to the viewing range of the main driver and the copilot. Since the screen viewing field of the main driver should be ensured first during driving, the best screen visible range of the main driver should be confirmed first. In order to automatically adjust the viewing range of the main driver, the best screen visible range of the main driver can be automatically matched according to the identity recognition of the main driver.

[0054] When the user uses the vehicle for the first time, the face of the main driver is recognized first, the face ID of the main driver is recorded, then the eye information of the main driver is automatically collected or recorded, and the eye height and the best viewing width of the main driver are calculated, and the best screen visible range of the main driver is determined according to the eye height and the best viewing width of the main driver. The measurement method can adopt a combination of infrared ranging and camera.

[0055] In some example embodiments, the best screen visible range of the main driver is determined according to the obtained in-vehicle image, comprising:

[0056] The collected in-vehicle image is subjected to face recognition to obtain the face ID of the main driver;

[0057] When the face ID of the main driver is a stored face ID, the eye height and the best viewing width of the main driver are obtained, and the best screen visible range of the main driver is determined according to the eye height and the best viewing width of the main driver;

[0058] When the face ID of the main driver is an un-stored face ID, the eye position of the main driver is determined, the eye height and the best viewing width of the main driver are calculated according to the eye position of the main driver, and the best screen visible range of the main driver is determined according to the eye height and the best viewing width of the main driver.

[0059] In the embodiments of the present disclosure, the image acquisition device can be a camera. In a vehicle equipped with a camera, the image of the driver can be captured, and the eye information of the driver can be obtained through face recognition to determine the eye position of the driver. Then, the eye height of the driver is calculated according to the determined eye position. Since the driver is basically in the middle position of the driver seat, and the position of the camera is fixed, the eye height of the driver can be calculated by the measurement method of the monocular camera. In order to calculate the eye height of the driver, the angle between the line connecting the eye of the driver and the image acquisition device and the horizontal plane is calculated first, and then the eye height of the driver is calculated according to the angle between the line connecting the eye of the driver and the image acquisition device and the horizontal plane.

[0060] FIG. 6 is a schematic diagram of the image captured by the camera. As shown in FIG. 6, 1 is the camera, the height of which is Hc, and the focal length of which is f; 2 is the actual position of the eye of the driver (or other person), the height of which is H; 3 is the plane of the image captured by the camera, on which Ic is the position of the camera optical center on the image, I0 is the position of the height level of the camera on the image, I1 is the top of the image captured by the camera, and I2 is the bottom of the image captured by the camera; 4 is the reference plane of the bottom of the captured image, which can be the plane of the seat, Dz1 is the horizontal distance between the driver (or other person) and the camera, and Dz2 is the distance between the driver (or other person) and the intersection point between the eye of the driver (or other person) captured by the camera and the reference plane 4; 5 is the height level of the camera; θ is the angle between the focal length horizontal line of the camera and the horizontal plane, θ1 is the angle between the top of the image captured by the camera and the focal length horizontal line of the camera, θ2 is the angle between the bottom of the image captured by the camera and the focal length horizontal line of the camera, and θ3 is the angle between the line connecting the eye of the driver (or other person) and the camera and the horizontal plane.

[0061] FIG. 7 is a mapping diagram of the image plane captured by the camera, in which O is the center position of the image captured by the camera, which is also the position of the camera optical center on the image captured by the camera.

[0062] In some example embodiments, the angle θ3 between the line connecting the eye of the driver and the image acquisition device and the horizontal plane is calculated according to the following formula: θ3 = θ - θ1(3);

[0063] Wherein, θ is the angle between the horizontal line of the focal length of the image acquisition device and the horizontal plane, θ1 is the angle between the line connecting the eye of the driver and the image acquisition device and the horizontal line of the focal length of the image acquisition device, I0 represents the position of the height horizontal plane where the image acquisition device is located in the image plane collected by the image acquisition device, Ic represents the position of the optical center of the image acquisition device in the image plane collected by the image acquisition device, I0-Ic represents the distance between I0 and Ic, f is the focal length of the image acquisition device, I1 represents the top position of the image plane collected by the image acquisition device, and I1-Ic represents the distance between I1 and Ic.

[0064] Then, the height of the camera is known as Hc, and the height of the eye of the driver is calculated according to the angle θ3 between the line connecting the eye of the driver and the image acquisition device and the horizontal plane.

[0065] Since

[0066] Therefore, combined with (4) and (5), it can be obtained that H = Hc-Dz1xtanθ3 (6).

[0067] That is, the height of the eye of the driver H can be calculated according to formula (6), wherein Dz1 is the horizontal distance between the eye of the driver and the image acquisition device, and Hc is the height of the image acquisition device.

[0068] Then, the height of the projection display area is determined according to the height of the eye of the driver H. It should be noted that when the height of the projection display area is determined according to the height of the eye of the driver H, it also needs to be combined with the specific vehicle model. Since the curvature of the windshield and the height of the vehicle of different vehicle models are different, the relationship between the height of the eye of the driver H and the height of the projection display area needs to be designed in advance according to the specific vehicle model before the vehicle is shipped. For example, before the vehicle is shipped, a plurality of people with different heights can drive the vehicle to determine the height of the projection display area suitable for each person, and then the relationship between the height of the eye of the driver H and the height of the projection display area is made into a corresponding relationship table or fitted into a relationship formula. When a new person drives the vehicle, the height of the projection display area corresponding to the calculated height of the eye of the driver can be determined according to the corresponding relationship table or the relationship formula.

[0069] In some example embodiments, the optimal screen visible range of the driver is determined according to the height of the eye of the driver and the optimal viewing width, comprising:

[0070] Obtaining a corresponding relationship table or a relationship formula between the height of the eye and the optimal screen height which is pre-stored;

[0071] Determining the optimal screen height according to the height of the eye of the driver and the obtained corresponding relationship table or relationship formula.

[0072] According to the optimal viewing width and the optimal screen height, the optimal screen visual range is determined.

[0073] In some example embodiments, the optimal viewing width of the primary driver is calculated according to the eye position of the primary driver, comprising:

[0074] The distance W between the outer canthus of the two eyes of the primary driver is determined;

[0075] The optimal viewing width of the primary driver is calculated according to the following formula:

[0076] L = L4 + L1 x tan a + W / 2, wherein L4 is the viewing distance on the left side of the primary driver, L1 is the distance from the eye position of the primary driver to the projection display area, and a is a preset clear zone angle.

[0077] As shown in FIG. 8, the distance between the outer canthus of the two eyes of the primary driver is W, the distance from the primary driver to the screen is L1, the viewing distance on the right side of the primary driver is L3, the viewing distance on the left side of the primary driver is L4, and the visual angle of the primary driver is a (the angle is the clear visual angle without turning the head, which is the visual angle for safe driving of the primary driver). The full visual field range of the human eye is about 220° horizontally and 120° vertically. However, the clarity of visual information obtained at each angle in these visual field ranges is not the same, and the best vision area of the human eye is 1-2°, and the clear zone is 10-15°. In order to safely and reliably accommodate the individual differences in the visual angle of the human eye, in the embodiments of the present disclosure, 10° of the clear zone is selected, i.e., a = 10°.

[0078] The calculation method is: L = L3 + L4 = L4 + L2 + W / 2 = L4 + L1 x tan a + W / 2 (7)

[0079] That is, the optimal viewing width of the primary driver is L = L4 + L1 x tan a + W / 2.

[0080] After the eye height and the optimal viewing width of the primary driver are calculated, the ID of the primary driver, the eye height H, and the optimal viewing width L of the primary driver are stored. When the primary driver sits on the driving seat, the eye height H, the optimal viewing width L, and other information can be obtained by confirming the ID of the primary driver through face recognition.

[0081] In the embodiments of the present disclosure, the adjustment of the projection display screen is mainly performed according to the eye height and the optimal viewing width of the driver. In practice, the optimal viewing width L of the driver can be equal to the sum of the display width of the first projection display area and the display width of the second projection display area, or can be greater than or less than the sum of the display width of the first projection display area and the display width of the second projection display area. When the optimal viewing width L of the driver is greater than or less than the sum of the display width of the first projection display area and the display width of the second projection display area, the display width of the first projection display area and the display width of the second projection display area can be adjusted.

[0082] In some example embodiments, when the first input is to select the first display screen and the second display screen for projection display, the display screens selected in the first input are controlled to perform projection display according to the optimal screen visual range of the driver, including:

[0083] When the optimal viewing width of the driver is less than the sum of the display width of the first projection display area and the display width of the second projection display area, the width of the first projection display area is adjusted to be a1 Lp1, and the width of the second projection display area is adjusted to be a2 Lp2, where 0 < a1 < 1, 0 < a2 < 1, a1 Lp1 + a2 Lp2 = L, where L is the optimal viewing width of the driver, Lp1 is the display width of the first projection display area before adjustment, and Lp2 is the display width of the second projection display area before adjustment.

[0084] In the embodiments of the present disclosure, when the optimal viewing width of the driver is less than the sum of the display width of the first projection display area and the display width of the second projection display area, the display width of the first projection display area and the display width of the second projection display area can be adjusted simultaneously, or only the display width of one of the first projection display area and the second projection display area can be adjusted, as long as the adjusted display width of the first projection display area and the second projection display area is equal to the optimal viewing width L of the driver.

[0085] In some example embodiments, when the first input is to select the first display screen and the second display screen for projection display, the display screens selected in the first input are controlled to perform projection display according to the optimal screen visual range of the driver, including:

[0086] When the optimal viewing width of the driver is greater than the sum of the display width of the first projection display area and the display width of the second projection display area, the width of the first projection display area is adjusted to a3 Lp1, and the width of the second projection display area is adjusted to a4 Lp2, where a3 > 1, a4 > 1, a3 Lp1 + a4 Lp2 = L, where L is the optimal viewing width of the driver, Lp1 is the display width of the first projection display area before adjustment, and Lp2 is the display width of the second projection display area before adjustment.

[0087] In the embodiments of the present disclosure, when the optimal viewing width of the driver is greater than the sum of the display width of the first projection display area and the display width of the second projection display area, the display widths of the first projection display area and the second projection display area can be adjusted simultaneously, or only one of the display widths of the first projection display area and the second projection display area can be adjusted, as long as the adjusted display widths of the first projection display area and the second projection display area are equal to the optimal viewing width L of the driver.

[0088] In actual use, in order to take into account the viewing experience of the copilot, whether the copilot is present can be detected before the display widths of the projection display areas are adjusted, and then the adjustment is performed according to the two cases of whether the copilot is present.

[0089] The embodiments of the present disclosure also provide a control method of a vehicle head-up display, the vehicle including a first display screen, a second display screen, and a third display screen, the display content of the first display screen being projected to a first projection display area, the display content of the second display screen being projected to a second projection display area, and the display content of the third display screen being projected to a third projection display area, as shown in FIG. 9, the control method including:

[0090] Step 901: acquiring an in-vehicle image collected by an image collection device, and determining an optimal screen visible range of a driver and whether a copilot is present according to the acquired in-vehicle image;

[0091] Step 902: when the copilot is not present, controlling at least one of the first display screen, the second display screen, and the third display screen to perform projection display according to the optimal screen visible range of the driver;

[0092] Step 903: when the copilot is present, receiving a second input of the driver, the second input being used to select whether to refer to an optimal viewing range of the copilot, and controlling at least one of the first display screen, the second display screen, and the third display screen to perform projection display according to the optimal screen visible range of the driver and the second input.

[0093] When there is no co-driver in the vehicle, the adjustment of the projection display area is still according to the best screen viewable range of the main driver (i.e. the eye height and the best viewing width of the main driver). The height of each projection display area can be achieved by adjusting the projection angle of the display screen through the control motor, and the width of each projection display area can be controlled by the content displayed by the system interface.

[0094] As shown in FIG. 10, in the present embodiment, the entire projection display screen is divided into three areas: the first projection display area, the second projection display area, and the third projection display area, and the content displayed in each area is determined according to the best viewing width and the viewing preference of the main driver and the co-driver, and is projected by three independent display screens. In FIG. 10, the three areas are roughly divided into the main driver screen, the central control screen, and the co-driver screen (which can be an entertainment screen). In a vehicle that is driving and has no co-driver, the entertainment information is usually not important and can not be displayed. Therefore, the display content range of the first projection display area and the second projection display area can be determined according to the best viewing width L of the main driver, and the division of the display content of the main driver screen and the central control screen is confirmed according to the preference of the main driver.

[0095] When there is a co-driver in the vehicle, but the main driver confirms that only the best viewing range of the main driver is referred to (at this time, the display content of the third display screen can not be displayed or although the display content of the third display screen is displayed, the main driver and / or the co-driver do not pay attention to the display width of the third display screen), the adjustment can still be made according to the above-mentioned case without a co-driver. Specifically, the display content range of the first projection display area and the second projection display area is determined according to the best viewing width L of the main driver, and the division of the display content of the main driver screen and the central control screen is confirmed according to the preference of the main driver.

[0096] When there is a co-driver in the vehicle, and the main driver confirms that the display content of the first display screen, the second display screen and the third display screen is needed to be displayed on the overall projection display screen, the best viewing range of the main driver is first confirmed, and it is assumed that the initial display length of the first projection display area is Lp1, the initial display length of the second projection display area is Lp2, and the initial display length of the third projection display area is Lp3. If the best viewing width L of the main driver is greater than or equal to (Lp1+Lp2), the display length of the first projection display area and the display length of the second projection display area are not adjusted, that is, the final screen viewing length of the main driver is (Lp1+Lp2), and the display length of the third projection display area is Lp3 at this time. If the best viewing width L of the main driver is less than (Lp1+Lp2), the content and proportion of the main driver screen and the central control screen that the main driver needs to view are adjusted according to the preference of the main driver, for example, the display length of the first projection display area and / or the second projection display area is adjusted, so that the final screen viewing length of the main driver is the calculated best viewing length L, and the display length of the third projection display area is (Lp1+Lp2+Lp3-L) at this time.

[0097] In some example embodiments, when there is no co-driver, the first display screen and / or the second display screen are controlled to perform projection display according to the best screen viewing range of the main driver, including at least one of the following:

[0098] When the best viewing width of the main driver is less than the sum of the display width of the first projection display area and the display width of the second projection display area, the width of the first projection display area is adjusted to α1·Lp1, and the width of the second projection display area is adjusted to α2·Lp2, where 0<α1≤1, 0<α2≤1, and α1·Lp1+α2·Lp2=L, where L is the best viewing width of the main driver, Lp1 is the display width of the first projection display area before adjustment, and Lp2 is the display width of the second projection display area before adjustment.

[0099] When the best viewing width of the main driver is greater than the sum of the display width of the first projection display area and the display width of the second projection display area, the width of the first projection display area is adjusted to α3·Lp1, and the width of the second projection display area is adjusted to α4·Lp2, where α3≥1, α4≥1, and α3·Lp1+α4·Lp2=L, where L is the best viewing width of the main driver, Lp1 is the display width of the first projection display area before adjustment, and Lp2 is the display width of the second projection display area before adjustment.

[0100] In the embodiments of the present disclosure, when the optimal viewing width of the main driver is not equal to (greater than or less than) the sum of the display width of the first projection display area and the display width of the second projection display area, the display width of the first projection display area and the second projection display area can be adjusted simultaneously, or the display width of only one of the first projection display area and the second projection display area can be adjusted, as long as the display width of the adjusted first projection display area and the second projection display area is equal to the optimal viewing width L of the main driver.

[0101] When there is a co-driver and the second input is not to refer to the optimal viewing range of the co-driver, at least one of the first display screen, the second display screen and the third display screen is controlled to perform projection display according to the optimal screen visible range of the main driver and the second input, including at least one of the following:

[0102] When the optimal viewing width of the main driver is less than the sum of the display width of the first projection display area and the display width of the second projection display area, the width of the first projection display area is adjusted to α1·Lp1, and the width of the second projection display area is adjusted to α2·Lp2, where 0<α1≤1, 0<α2≤1, and α1·Lp1+α2·Lp2=L, where L is the optimal viewing width of the main driver, Lp1 is the display width of the first projection display area before adjustment, and Lp2 is the display width of the second projection display area before adjustment.

[0103] When the optimal viewing width of the main driver is greater than the sum of the display width of the first projection display area and the display width of the second projection display area, the width of the first projection display area is adjusted to α3·Lp1, and the width of the second projection display area is adjusted to α4·Lp2, where α3≥1, α4≥1, and α3·Lp1+α4·Lp2=L, where L is the optimal viewing width of the main driver, Lp1 is the display width of the first projection display area before adjustment, and Lp2 is the display width of the second projection display area before adjustment.

[0104] In the embodiments of the present disclosure, when the optimal viewing width of the main driver is not equal to (greater than or less than) the sum of the display width of the first projection display area and the display width of the second projection display area, the display width of the first projection display area and the second projection display area can be adjusted simultaneously, or the display width of only one of the first projection display area and the second projection display area can be adjusted, as long as the display width of the adjusted first projection display area and the second projection display area is equal to the optimal viewing width L of the main driver.

[0105] In some example embodiments, when there is a co-driver and the second input is a reference to an optimal viewing range of the co-driver, the first display screen, the second display screen and the third display screen are controlled to project and display according to the optimal screen viewing range of the driver and the second input, including at least one of the following:

[0106] When the optimal viewing width of the driver is less than the sum of the display width of the first projection display area and the display width of the second projection display area, the width of the first projection display area is adjusted to a1 Lp1, the width of the second projection display area is adjusted to a2 Lp2, and the width of the third projection display area is adjusted to (Lp1+Lp2+Lp3-L), where 0

[0107] When the optimal viewing width of the driver is greater than or equal to the sum of the display width of the first projection display area and the display width of the second projection display area, the widths of the first projection display area to the third projection display area are not adjusted.

[0108] In the embodiments of the present disclosure, when the optimal viewing width of the driver is less than the sum of the display width of the first projection display area and the display width of the second projection display area, the display widths of the first projection display area and the second projection display area can be adjusted simultaneously, or only one of the first projection display area and the second projection display area can be adjusted, as long as the adjusted display widths of the first projection display area and the second projection display area are equal to the optimal viewing width L of the driver. When the optimal viewing width of the driver is greater than the sum of the display width of the first projection display area and the display width of the second projection display area, in order to consider the viewing effect of the co-driver, the widths of the first projection display area to the third projection display area are not adjusted.

[0109] In some example embodiments, there is at least a partial overlap area between the first projection display area and the second projection display area, and there is at least a partial overlap area between the second projection display area and the third projection display area.

[0110] Due to the existence of the frame area not displaying at the edges of the first display screen, the second display screen and the third display screen, in order to avoid the situation that the projected image is divided when displayed, by making at least a partial overlapping area between the first projected display area and the second projected display area and at least a partial overlapping area between the second projected display area and the third projected display area, the edge of the projected image of each display screen and the edge of the projected image of the adjacent display screen can be kept consistent at the splicing position.

[0111] In some example embodiments, the image acquisition device comprises an electronic rearview mirror image acquisition device, and the control method further comprises:

[0112] When the driving mode of the vehicle is switched to the reversing mode or a third input is received, the display content of the third display screen is automatically switched to the content acquired by the electronic rearview mirror image acquisition device, and the third input is an instruction for switching the display content of the third display screen to the content acquired by the electronic rearview mirror image acquisition device.

[0113] In the embodiments of the present disclosure, when the vehicle is reversing or the driver urgently needs to view the rearview mirror, the driver, especially the driver with a narrow field of view, needs to twist the head at a large angle to clearly see the content of the rearview mirror, and there are some dangers in this process. In order to enable the driver to better observe the road conditions, the content of the third display screen can be set as the display content of the rearview mirror, and at this time, an electronic rearview mirror image acquisition device (electronic rearview mirror camera) needs to be installed at the position of the rearview mirror of the vehicle.

[0114] Since each display screen is connected with a screen rotating device, that is, each display screen can rotate, correspondingly, the projected image can move up, down, left and right. When the driver needs to observe the rearview mirror, the projected image of the third display screen can be projected in the area more convenient for the driver to observe.

[0115] As shown in FIG. 11, the embodiment of the present disclosure provides a control method of vehicle head-up display. When the vehicle is in driving mode, the information of the main driver is collected and recognized. When it is recognized that the main driver is a first-time user of the vehicle, the eye position of the main driver is first determined, the optimal screen visible range of the main driver is calculated according to the determined eye position, and then the ID and the optimal screen visible range of the main driver and the like are stored. Then it is judged whether there is a co-driver. According to the calculated optimal screen visible range and the co-driver information, the projection display area of each display screen is adjusted. The embodiment of the present disclosure can present an integrated and penetrating effect by using the splicing and fusion method, can reduce the cost while realizing panoramic head-up display, and when a certain area in one display screen is damaged, the projection display of other display screens will not be affected. At the same time, by adjusting the optimal projection mode for passengers and use environment in different positions, the viewing effect of the main driver and / or the co-driver can be enhanced, the viewing experience of the main driver and / or the co-driver can be improved, and the driving safety of the main driver can be ensured.

[0116] As shown in FIG. 12A, the embodiment of the present disclosure also provides a control system of vehicle head-up display, comprising: an image collection device 1201, a first master control unit 1202, a control unit 1203 and a display unit 1204, the display unit 1204 comprising a first display screen, a second display screen and a third display screen and a projection display screen, the projection display screen comprising a first projection display area, a second projection display area and a third projection display area, the display content of the first display screen being projected to the first projection display area, the display content of the second display screen being projected to the second projection display area, and the display content of the third display screen being projected to the third projection display area, wherein:

[0117] The image collection device 1201 is configured to collect the in-vehicle image;

[0118] The first master control unit 1202 is configured to acquire the in-vehicle image collected by the image collection device 1201, determine the optimal screen visible range of the main driver according to the acquired in-vehicle image, receive a first input, the first input being used to select at least one display screen of the first display screen, the second display screen and the third display screen for projection display, send a first control instruction to the control unit 1203 according to the optimal screen visible range of the main driver and the first input, and send second display data to the display unit 1204;

[0119] The control unit 1203 is configured to receive the first control instruction of the first master control unit 1202, and control the projection area position and the projection angle of the corresponding display screen according to the first control instruction;

[0120] The display unit 1204 is configured to receive the second display data of the first master control unit 1202, and perform projection display according to the second display data.

[0121] In the embodiments of the present disclosure, the image acquisition device 1201 can be a camera and / or an infrared thermal imager, etc.

[0122] In the embodiments of the present disclosure, the control unit 1203 can include a controller and a first screen rotating device, a second screen rotating device and a third screen rotating device connected with the controller respectively, wherein the first screen rotating device is connected with the first display screen and is used to control the rotating direction of the first display screen (to change the projection area position and projection angle of the first display screen); the second screen rotating device is connected with the second display screen and is used to control the rotating direction of the second display screen (to change the projection area position and projection angle of the second display screen); the third screen rotating device is connected with the third display screen and is used to control the rotating direction of the third display screen (to change the projection area position and projection angle of the third display screen).

[0123] In the embodiments of the present disclosure, the control system can further include a storage unit 1205, wherein the storage unit 1205 can be configured to store the face ID, eye height and optimal viewing width of one or more main drivers, and a corresponding relationship table or relationship formula between the eye height and the optimal screen height.

[0124] As shown in FIG. 12B, the embodiments of the present disclosure further provide a control system of vehicle head-up display, including an image acquisition device 1201, a second main control unit 1206, a control unit 1203 and a display unit 1204, the display unit 1204 includes a first display screen, a second display screen and a third display screen and a projection display screen, the projection display screen includes a first projection display area, a second projection display area and a third projection display area, the display content of the first display screen is projected to the first projection display area, the display content of the second display screen is projected to the second projection display area, and the display content of the third display screen is projected to the third projection display area, wherein:

[0125] The image acquisition device 1201 is configured to acquire an image in the vehicle;

[0126] The second master control unit 1206 is configured to acquire the in-vehicle image collected by the image collection device 1201, determine the optimal screen visible range of the primary driver and whether there is a co-driver according to the acquired in-vehicle image; when there is no co-driver, send a first control instruction to the control unit 1203 according to the optimal screen visible range of the primary driver, and send second display data to at least one of the first display screen, the second display screen and the third display screen; when there is a co-driver, receive a second input, the second input is used to select whether to refer to the optimal viewing range of the co-driver, send a third control instruction to the control unit 1203 according to the optimal screen visible range of the primary driver and the second input, and send fourth display data to at least one of the first display screen, the second display screen and the third display screen.

[0127] The control unit 1203 is configured to receive the first control instruction or the third control instruction of the second master control unit 1206, and control the projection area position and the projection angle of the corresponding display screen according to the first control instruction or the third control instruction.

[0128] The display unit 1204 is configured to receive the second display data or the fourth display data of the second master control unit 1206, and project and display according to the second display data or the fourth display data.

[0129] In the embodiments of the present disclosure, the control unit 1203 can include a controller and first screen rotating device, second screen rotating device and third screen rotating device connected with the controller respectively, wherein the first screen rotating device is connected with the first display screen and is used to control the rotation direction of the first display screen (to change the projection area position and the projection angle of the first display screen); the second screen rotating device is connected with the second display screen and is used to control the rotation direction of the second display screen (to change the projection area position and the projection angle of the second display screen); the third screen rotating device is connected with the third display screen and is used to control the rotation direction of the third display screen (to change the projection area position and the projection angle of the third display screen).

[0130] In the embodiments of the present disclosure, the control system can further include a storage unit 1205, wherein the storage unit 1205 can be configured to store the face ID, eye height and optimal viewing width of one or more primary drivers, and a corresponding relationship table or relationship formula between the eye height and the optimal screen height.

[0131] The embodiments of the present disclosure also provide a vehicle head-up display control device, which can include a processor and a memory storing a computer program capable of running on the processor, and the processor implements the steps of the vehicle head-up display control method according to any one of the embodiments of the present disclosure when executing the computer program.

[0132] As shown in FIG. 13, in one example, the control device of the vehicle head-up display can include a first processor 1310, a first memory 1320, a first bus system 1330, and a first transceiver 1340, wherein the first processor 1310, the first memory 1320, and the first transceiver 1340 are connected through the first bus system 1330, the first memory 1320 is configured to store instructions, and the first processor 1310 is configured to execute the instructions stored in the first memory 1320 to control the first transceiver 1340 to acquire an in-vehicle image collected by an image collection device or receive a first input for selecting at least one display screen of the first display screen, the second display screen, and the third display screen for projection display. Specifically, the first processor 1310 determines an optimal screen visual range of a primary driver according to the acquired in-vehicle image, and controls the display screen selected in the first input to perform projection display according to the optimal screen visual range of the primary driver.

[0133] It should be understood that the first processor 1310 can be a central processing unit (CPU), and the first processor 1310 can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), ready programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0134] The first memory 1320 can include read-only memory and random access memory, and provide instructions and data to the first processor 1310. A portion of the first memory 1320 can also include non-volatile random access memory. For example, the first memory 1320 can also store device type information.

[0135] The first bus system 1330 can include a data bus, a power bus, a control bus, and a status signal bus, etc. in addition to the data bus. However, for the purpose of clarity, all the buses are marked as the first bus system 1330 in FIG. 13.

[0136] In the implementation process, the processing performed by the control device of the vehicle head-up display can be completed by the integrated logic circuit of hardware or the instructions in the form of software in the first processor 1310. That is, the method steps of the embodiments of the present disclosure can be embodied by the hardware processor to complete, or by the combination of hardware and software modules in the processor to complete. The software module can be located in a storage medium such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, register, or the like. The storage medium is located in the first memory 1320, and the first processor 1310 reads the information in the first memory 1320 and combines the hardware thereof to complete the steps of the above method. To avoid repetition, it will not be described in detail here.

[0137] As shown in FIG. 14, in one example, the control device of the vehicle head-up display can include a second processor 1410, a second memory 1420, a second bus system 1430, and a second transceiver 1440, wherein the second processor 1410, the second memory 1420, and the second transceiver 1440 are connected through the second bus system 1430, the second memory 1420 is configured to store instructions, and the second processor 1410 is configured to execute the instructions stored in the second memory 1420 to control the second transceiver 1440 to acquire an in-vehicle image collected by an image collection device or receive a second input, the second input being used to select whether to refer to the optimal viewing range of the copilot. Specifically, the second processor 1410 determines the optimal screen visible range of the main driver and whether there is a copilot according to the acquired in-vehicle image; when there is no copilot, controls at least one of the first display screen, the second display screen, and the third display screen to perform projection display according to the optimal screen visible range of the main driver; and when there is a copilot, controls at least one of the first display screen, the second display screen, and the third display screen to perform projection display according to the optimal screen visible range of the main driver and the second input.

[0138] It should be understood that the second processor 1410 can be a central processing unit (CPU), and the second processor 1410 can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), ready programmable gate arrays (FPGAs), or other programmable logic devices, discrete gates or transistor logic components, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0139] The second memory 1420 can include read-only memory and random access memory, and provide instructions and data to the second processor 1410. A part of the second memory 1420 can also include non-volatile random access memory. For example, the second memory 1420 can also store device type information.

[0140] The second bus system 1430 can include, in addition to a data bus, a power bus, a control bus, and a status signal bus, etc. However, for the sake of clarity, all of the buses are denoted as the second bus system 1430 in FIG. 14.

[0141] In the implementation process, the processing performed by the control device of the vehicle head-up display can be completed by the integrated logic circuit of the hardware in the second processor 1410 or the instructions in the form of software. That is, the method steps of the embodiments of the present disclosure can be embodied by the hardware processor to complete, or by the combination of hardware and software modules in the processor to complete. The software module can be located in a storage medium such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, register, or the like. The storage medium is located in the second storage 1420, and the second processor 1410 reads the information in the second storage 1420 and combines the hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.

[0142] The embodiments of the present disclosure also provide a computer readable storage medium, which stores executable instructions. When the executable instructions are executed by a processor, the vehicle head-up display control method provided by any of the above embodiments of the present disclosure can be implemented. The vehicle head-up display control method can splice and fuse the projection images of multiple display screens, can present an integrated and penetrating effect, can reduce the cost while realizing panoramic head-up display, and when a certain area in one display screen is damaged, the projection display of other display screens will not be affected, and the viewing effect of the main driver can be enhanced, and the driving safety of the main driver can be ensured. The vehicle head-up display control method driven by the vehicle head-up display control device by executing the executable instructions is basically the same as the vehicle head-up display control method provided by the above embodiments of the present disclosure, and will not be described here.

[0143] In some possible implementation manners, each aspect of the vehicle head-up display control method provided by the present disclosure can also be implemented in the form of a program product, which includes program codes for causing a computer device to perform the steps in the vehicle head-up display control method according to various exemplary embodiments of the present disclosure described above in the specification when the program product runs on the computer device. For example, the computer device can execute the vehicle head-up display control method described in the embodiments of the present disclosure.

[0144] The program product can employ any combination of one or more computer-readable media. The computer-readable media can be a computer-readable storage medium or a computer-readable signal medium. Computer-readable storage media can be, for example but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of computer-readable storage media include an electrical connection having one or more wires, a portable disc, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0145] Those of ordinary skill in the art will appreciate that all or certain steps in the methods disclosed above, functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units referred to in the above description does not necessarily correspond to the division of physical components; for example, one physical component can have multiple functions, or one function or step can be performed by several physical components in cooperation. Certain components or all components can be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on computer-readable media, which can include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile discs (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Further, it should be noted that computer storage media can be embodied in a computer program product. As is well known to those of ordinary skill in the art, the term computer program product includes any computer readable medium, which can be tangibly embodied in a computer readable storage medium or communication medium.

[0146] It should be noted that the above-described embodiments or implementations are merely exemplary, rather than limiting. Thus, the present disclosure is not limited to what is particularly shown and described herein. Various modifications, substitutions, and omissions can be made to the forms and details of implementation without departing from the scope of the present disclosure.

Claims

A control method for a vehicle head-up display, the vehicle including a first display screen, a second display screen, a third display screen, and a projection display screen, the projection display screen including a first projection display area, a second projection display area, and a third projection display area, the display content of the first display screen being projected onto the first projection display area, the display content of the second display screen being projected onto the second projection display area, and the display content of the third display screen being projected onto the third projection display area, the control method including: The system acquires in-vehicle images captured by the image acquisition device and determines the optimal screen viewing range for the driver based on these images. Receive a first input, the first input being used to select at least one of the first display screen, the second display screen, and the third display screen for projection display; The driver controls the display screen selected in the first input to project a display based on the driver's optimal screen viewing range. According to the control method of claim 1, wherein, The step of determining the optimal screen viewing range for the driver based on the acquired in-vehicle images includes: Facial recognition is performed on the collected in-vehicle images to obtain the driver's facial ID; When the driver's face ID is a stored face ID, obtain the driver's eye height and optimal viewing width, and determine the driver's optimal screen viewing range based on the driver's eye height and optimal viewing width; When the driver's face ID is an unstored face ID, the driver's eye position is determined, the driver's eye height and optimal viewing width are calculated based on the driver's eye position, and the driver's optimal screen viewing range is determined based on the driver's eye height and optimal viewing width. According to the control method of claim 2, wherein, The step of calculating the driver's eye height based on the driver's eye position includes: The angle between the line connecting the driver's eye and the image acquisition device and the horizontal plane is calculated using the following formula: θ3 = θ - θ1; Wherein, θ3 is the angle between the line connecting the driver's eye and the image acquisition device and the horizontal plane, θ is the angle between the horizontal line of the focal length of the image acquisition device and the horizontal plane, θ1 is the angle between the line connecting the driver's eye and the image acquisition device and the horizontal line of the focal length of the image acquisition device, I0 represents the position of the horizontal plane at the height of the image acquisition device in the image plane acquired by the image acquisition device, Ic represents the position of the optical center of the image acquisition device in the image plane acquired by the image acquisition device, I0-Ic represents the distance between I0 and Ic, f is the focal length of the image acquisition device, I1 represents the top position of the image plane acquired by the image acquisition device, and I1-Ic represents the distance between I1 and Ic; The driver's eye height is calculated using the following formula: H = Hc - Dz1 × tanθ3; Wherein, Dz1 is the horizontal distance between the driver's eyes and the image acquisition device, and Hc is the height of the image acquisition device. According to the control method of claim 2, wherein, Calculate the optimal viewing width for the driver based on the driver's eye position, including: Determine the distance W between the outer corners of the driver's two eyes; The optimal viewing width for the driver is calculated using the following formula: L = L4 + L1 × tanα + W / 2, where L4 is the viewing distance from the left side of the driver, L1 is the distance from the driver's eyes to the projection display area, and α is the preset clear zone angle. According to the control method of claim 2, wherein, The step of determining the optimal screen viewing range for the driver based on the driver's eye height and optimal viewing width includes: Obtain the pre-stored correspondence table or formula between eye height and optimal screen height; The optimal screen height is determined based on the driver's eye level and the corresponding relationship table or formula obtained. The optimal screen viewing range is determined based on the optimal viewing width and the optimal screen height. According to the control method of claim 1, wherein, When the first input is to select the first display screen and the second display screen for projection display, controlling the display screen selected in the first input to project display according to the driver's optimal screen viewing range includes at least one of the following: When the optimal viewing width for the driver is less than the sum of the display widths of the first and second projection display areas, the width of the first projection display area is adjusted to α1·Lp1, and the width of the second projection display area is adjusted to α2·Lp2, where 0 < α1 ≤ 1, 0 < α2 ≤ 1, α1·Lp1 + α2·Lp2 = L, where L is the optimal viewing width for the driver, Lp1 is the display width of the first projection display area before adjustment, and Lp2 is the display width of the second projection display area before adjustment. When the optimal viewing width for the driver is greater than the sum of the display widths of the first and second projection display areas, the width of the first projection display area is adjusted to α3·Lp1, and the width of the second projection display area is adjusted to α4·Lp2, where α3≥1, α4≥1, and α3·Lp1+α4·Lp2=L. A control method for a vehicle head-up display, the vehicle including a first display screen, a second display screen, a third display screen, and a projection display screen, the projection display screen including a first projection display area, a second projection display area, and a third projection display area, the display content of the first display screen being projected onto the first projection display area, the display content of the second display screen being projected onto the second projection display area, and the display content of the third display screen being projected onto the third projection display area, the control method including: The system acquires in-vehicle images captured by the image acquisition device and determines the optimal screen viewing range for the driver and whether there is a passenger in the front seat based on the acquired images. When there is no passenger in the front seat, at least one of the first display screen, the second display screen, and the third display screen is controlled to project a display based on the optimal screen viewing range of the driver. When there is a passenger in the front seat, a second input is received. The second input is used to select whether to refer to the passenger's optimal viewing range. Based on the driver's optimal screen viewing range and the second input, at least one of the first display screen, the second display screen, and the third display screen is controlled to project a display. According to the control method of claim 7, wherein, When there is no passenger in the front seat, controlling at least one of the first, second, and third displays to project a display based on the driver's optimal screen viewing range includes at least one of the following: When the optimal viewing width for the driver is less than the sum of the display widths of the first and second projection display areas, the width of the first projection display area is adjusted to α1·Lp1, and the width of the second projection display area is adjusted to α2·Lp2, where 0 < α1 ≤ 1, 0 < α2 ≤ 1, α1·Lp1 + α2·Lp2 = L, where L is the optimal viewing width for the driver, Lp1 is the display width of the first projection display area before adjustment, and Lp2 is the display width of the second projection display area before adjustment. When the optimal viewing width for the driver is greater than the sum of the display widths of the first and second projection display areas, the width of the first projection display area is adjusted to α3·Lp1, and the width of the second projection display area is adjusted to α4·Lp2, where α3≥1, α4≥1, and α3·Lp1+α4·Lp2=L. According to the control method of claim 7, wherein, When there is a passenger in the front seat and the second input is not based on the passenger's optimal viewing range, controlling at least one of the first display screen, the second display screen, and the third display screen to project a display based on the driver's optimal screen viewing range and the second input includes at least one of the following: When the optimal viewing width for the driver is less than the sum of the display widths of the first and second projection display areas, the width of the first projection display area is adjusted to α1·Lp1, and the width of the second projection display area is adjusted to α2·Lp2, where 0 < α1 ≤ 1, 0 < α2 ≤ 1, α1·Lp1 + α2·Lp2 = L, where L is the optimal viewing width for the driver, Lp1 is the display width of the first projection display area before adjustment, and Lp2 is the display width of the second projection display area before adjustment. When the optimal viewing width for the driver is greater than the sum of the display widths of the first and second projection display areas, the width of the first projection display area is adjusted to α3·Lp1, and the width of the second projection display area is adjusted to α4·Lp2, where α3≥1, α4≥1, and α3·Lp1+α4·Lp2=L. According to the control method of claim 7, wherein, When there is a passenger in the front seat and the second input is the optimal viewing range for the passenger, controlling at least one of the first display screen, the second display screen, and the third display screen to project a display based on the optimal screen viewing range of the driver and the second input includes at least one of the following: When the optimal viewing width for the driver is less than the sum of the display widths of the first and second projection display areas, the width of the first projection display area is adjusted to α1·Lp1, the width of the second projection display area is adjusted to α2·Lp2, and the width of the third projection display area is adjusted to (Lp1+Lp2+Lp3-L), where 0<α1≤1, 0<α2≤1, α1·Lp1+α2·Lp2=L, where L is the optimal viewing width for the driver, Lp1 is the display width of the first projection display area before adjustment, Lp2 is the display width of the second projection display area before adjustment, and Lp3 is the display width of the third projection display area before adjustment. When the optimal viewing width for the driver is greater than or equal to the sum of the display width of the first projection display area and the display width of the second projection display area, the width from the first projection display area to the third projection display area is not adjusted. According to the control method of claim 7, wherein, There is at least a partial overlap between the first projection display area and the second projection display area, and at least a partial overlap between the second projection display area and the third projection display area. According to the control method of claim 7, wherein, The image acquisition device includes an electronic rearview mirror image acquisition device, and the control method further includes: When the vehicle's driving mode is switched to reverse mode or a third input is received, the display content of the third display screen is automatically switched to the content captured by the electronic rearview mirror image acquisition device. The third input is an instruction to switch the display content of the third display screen to the content captured by the electronic rearview mirror image acquisition device. A control device for a vehicle head-up display, comprising: The processor and the memory storing a computer program executable on the processor, wherein the processor executes the computer program to implement the steps of the control method for a vehicle head-up display as claimed in any one of claims 1 to 12. A computer-readable storage medium storing computer-executable instructions for performing the control method for a vehicle head-up display as described in any one of claims 1 to 12. A computer program product includes instructions that, when executed by a computer, perform the control method for a vehicle head-up display as described in any one of claims 1 to 12. A control system for a vehicle head-up display includes: The system includes an image acquisition device, a first main control unit, a control unit, and a display unit. The display unit includes a first display screen, a second display screen, a third display screen, and a projection display screen. The projection display screen includes a first projection display area, a second projection display area, and a third projection display area. The content displayed on the first display screen is projected onto the first projection display area, the content displayed on the second display screen is projected onto the second projection display area, and the content displayed on the third display screen is projected onto the third projection display area. Wherein: The image acquisition device is configured to acquire images inside the vehicle; The first main control unit is configured to acquire in-vehicle images captured by the image acquisition device, determine the optimal screen viewing range for the driver based on the acquired in-vehicle images, receive a first input for selecting at least one of the first display screen, the second display screen, and the third display screen for projection display, and send a first control command to the control unit based on the optimal screen viewing range for the driver and the first input, and send second display data to at least one of the first display screen, the second display screen, and the third display screen. The control unit is configured to receive a first control command from the first main control unit and control the projection area position and projection angle of the corresponding display screen according to the first control command. The display unit is configured to receive second display data from the first main control unit and project and display the data based on the second display data. A control system for a vehicle head-up display includes: The system includes an image acquisition device, a second main control unit, a control unit, and a display unit. The display unit comprises a first display screen, a second display screen, a third display screen, and a projection display screen. The projection display screen includes a first projection display area, a second projection display area, and a third projection display area. The content displayed on the first display screen is projected onto the first projection display area, the content displayed on the second display screen is projected onto the second projection display area, and the content displayed on the third display screen is projected onto the third projection display area. Wherein: The image acquisition device is configured to acquire images inside the vehicle; The second main control unit is configured to acquire in-vehicle images captured by the image acquisition device, determine the optimal screen viewing range for the driver and whether there is a passenger based on the acquired in-vehicle images; when there is no passenger, it sends a first control command to the control unit based on the optimal screen viewing range for the driver, and sends second display data to at least one of the first display screen, the second display screen, and the third display screen; when there is a passenger, it receives a second input, which is used to select whether to refer to the optimal viewing range for the passenger, sends a third control command to the control unit based on the optimal screen viewing range for the driver and the second input, and sends fourth display data to at least one of the first display screen, the second display screen, and the third display screen. The control unit is configured to receive a first control command or a third control command from the second main control unit, and control the projection area position and projection angle of the corresponding display screen according to the first control command or the third control command. The display unit is configured to receive second display data or fourth display data from the second main control unit, and to project and display the data based on the second display data or fourth display data.

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