Display method and device of vehicle-mounted display screen, vehicle and storage medium

Abstract

The invention provides a display method and device of a vehicle-mounted display screen, a vehicle and a storage medium, the method is applied to the technical field of vehicles, and the method comprises the steps that the eye spot position of a driver, the current position of a first rearview mirror of the current vehicle and boundary information of the vehicle-mounted display screen are collected; according to the eye spot position, the current position and the boundary information, a view channel area and a virtual imaging area of the driving side window glass are constructed; and determining an interference area according to an overlapping area of the visual field channel area and the virtual imaging area, determining a first light guide area and a second light guide area of the vehicle-mounted display screen according to the interference area, and respectively optimizing a light guide grating of the corresponding first light guide area and a light guide grating of the corresponding second light guide area. Therefore, the problem that the driving sight is affected by imaging of the display screen on the front windshield and the side air window is solved, and the light guide grids in different directions are formed by adjusting the colors of the transverse and longitudinal grids of the display screen, so that the influence of imaging of the front windshield on the front visual field is reduced while imaging of the side air window does not affect observation of an outside rear-view mirror.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and more specifically, to a display method, device, vehicle and storage medium for an on-board display screen in the field of vehicles. Background Art

[0002] With the development of smart cockpits in recent years, full LCD instrument clusters and central control displays have been used on a large scale. At night and in tunnels where natural light is dim, the display screens will form images on the windshield and side windows, affecting the driver's observation of the exterior mirrors and the front field of view, which may distract the driver while driving and pose a safety hazard.

[0003] In order to prevent the display screen from forming an image on the glass, related technologies often use a screen-attached grille film to control light guide, such as Figure 1 As shown, the screen luminous angle is controlled within a 60° angle with the screen in the vertical range to prevent light from falling on the front windshield and solve the front windshield imaging problem, or the screen luminous angle is controlled within a 60° angle with the screen in the horizontal range to make the light fall behind the rearview mirror field of view channel area to prevent imaging from affecting the observation of the outside rearview mirror.

[0004] However, currently common grille films can only achieve light control in a single direction, vertically or horizontally, and cannot solve the problem of simultaneous imaging of the front windshield and the side windows. Summary of the invention

[0005] The present application provides a display method, device, vehicle and storage medium for a vehicle-mounted display screen. The method can solve the problem that the display screen simultaneously forms images on the front windshield and the side windshield windows, affecting the driver's line of sight. By adjusting the colors of the horizontal and vertical grilles of the display screen, light-guiding grilles in different directions are formed, so that the imaging of the side windshield does not affect the observation of the exterior rearview mirror, while reducing the influence of the front windshield imaging on the front field of view.

[0006] In a first aspect, a display method of a vehicle-mounted display screen is provided, the method comprising:

[0007] Collect the driver's eye point position, the current position of the first rearview mirror of the current vehicle, and the boundary information of the vehicle display screen;

[0008] Constructing a visual field channel area and a virtual imaging area of ​​the driver's side window glass according to the eye point position, the current position and the boundary information; and

[0009] An interference area is determined according to an overlapping area between the field of view channel area and the virtual imaging area, and a first light guide area and a second light guide area of ​​the vehicle display screen are determined according to the interference area, and the corresponding light guide gratings of the first light guide area and the second light guide area are optimized respectively.

[0010] The above technical solution can solve the problem of the display screen simultaneously imaging on the front windshield and side windows affecting the driving vision. By adjusting the color of the horizontal and vertical grilles of the display screen, light guide grilles in different directions are formed, so that the imaging of the side windows does not affect the observation of the exterior rearview mirrors while reducing the impact of the front windshield imaging on the front field of view. The light guide area is adaptively adjusted in real time, and the front and side fields of view are balanced and optimized, making the driving field of view safer.

[0011] In combination with the first aspect, in some possible implementations, constructing the field of view channel area and the virtual imaging area of ​​the driver's side window glass according to the eye point position, the current position and the boundary information includes:

[0012] Constructing the visual field channel area of ​​the driver's side window glass according to the eye point position and the current position;

[0013] A virtual imaging area of ​​the driver's side window glass is constructed according to the eye point position and the boundary information.

[0014] In combination with the first aspect and the above implementations, in some possible implementations, constructing the field of view channel area of ​​the driver's side window glass according to the eye point position and the current position includes:

[0015] determining a plurality of edge points of the first rearview mirror;

[0016] Transmitting a first ripple signal to an eye point position at each edge point respectively, and receiving a plurality of second ripple signals fed back by the driver's side window glass based on the first ripple signal;

[0017] The field of view channel area is constructed according to the position coordinates of each second ripple signal.

[0018] In combination with the first aspect and the above implementations, in some possible implementations, constructing the virtual imaging area of ​​the driver's side window glass according to the eye point position and the boundary information includes:

[0019] Determining the coordinates of multiple light-emitting points of the vehicle-mounted display screen;

[0020] Determine a first midpoint between the eye point position and the coordinates of any one of the multiple light-emitting points, and based on the first midpoint, determine multiple target points on a straight line where the eye point position and the coordinates of any one of the light-emitting points are located, and determine a projection point of each target point on the driver's side window glass;

[0021] Obtaining an imaging point of any light-emitting point on the driver's side window glass based on the eye point position, the coordinates of any light-emitting point and the projection point of each target point on the driver's side window glass;

[0022] Re-determining the first midpoint between the eye point position and the coordinates of any one of the remaining multiple light-emitting points until an imaging point corresponding to the coordinates of each light-emitting point is obtained;

[0023] A virtual imaging area of ​​the driver's side window glass is obtained according to the imaging point corresponding to the coordinates of each light-emitting point.

[0024] In combination with the first aspect and the above implementation manner, in some possible implementation manners, obtaining an imaging point of any light-emitting point on the driver's side window glass based on the eye point position, the coordinates of any light-emitting point, and the projection point of each target point on the driver's side window glass includes:

[0025] Based on the eye point position, the coordinates of any one of the plurality of target points and the projection point of any one of the plurality of target points on the driver's side window glass, a target circle corresponding to the any one of the target points is constructed, and based on another intersection point of the target circle corresponding to the any one of the target points and the straight line where the projection point of the any one of the target points on the driver's side window glass is located;

[0026] Re-constructing a target circle corresponding to any one of the remaining multiple target points based on the eye point position, the coordinates of any one of the light-emitting points, and the projection point of any one of the remaining multiple target points on the driver's side window glass until all other intersection points are obtained;

[0027] A target parabola is constructed based on all the other intersection points, and a virtual intersection point is obtained according to the intersection point of the perpendicular line of the first midpoint and the target parabola, and the projection of the virtual intersection point on the driver's side window glass is used as the imaging point of any light-emitting point on the driver's side window glass.

[0028] In combination with the first aspect and the above implementations, in some possible implementations, before collecting the eye point position of the driver, the current position of the first rearview mirror of the current vehicle, and the boundary information of the vehicle display screen, the method further includes:

[0029] Detecting the light intensity of the environment in which the current vehicle is located;

[0030] If the light intensity is lower than a first preset threshold, it is determined that the first light guiding area and the second light guiding area meet a preset optimization condition.

[0031] In combination with the first aspect and the above implementation manner, in some possible implementation manners, respectively optimizing the corresponding light guide grating of the first light guide area and the light guide grating of the second light guide area further includes:

[0032] The light guide grids in the first light guide area are controlled to be adjusted to a first target color in a first direction, and the light guide grids in the second light guide area are controlled to be adjusted to a second target color in a second direction.

[0033] In a second aspect, a display device for a vehicle-mounted display screen is provided, the device comprising: a collection module for collecting the eye point position of the driver, the current position of the first rearview mirror of the current vehicle, and the boundary information of the vehicle-mounted display screen;

[0034] A construction module, configured to construct a visual field channel area and a virtual imaging area of ​​a driver's side vehicle window glass according to the eye point position, the current position and the boundary information; and

[0035] An optimization module is used to determine an interference area according to an overlapping area between the field of view channel area and the virtual imaging area, and to determine a first light guide area and a second light guide area of ​​the vehicle display screen according to the interference area, and to optimize the corresponding light guide grating of the first light guide area and the light guide grating of the second light guide area respectively.

[0036] In combination with the second aspect and the above implementations, in some possible implementations, the building module includes:

[0037] A first constructing unit, configured to construct the visual field channel area of ​​the driver's side window glass according to the eye point position and the current position;

[0038] The second construction unit is used to construct a virtual imaging area of ​​the driver's side window glass according to the eye point position and the boundary information.

[0039] In combination with the second aspect and the above implementation manner, in some possible implementation manners, the first building unit includes:

[0040] A first determining subunit, configured to determine a plurality of edge points of the first rearview mirror;

[0041] A receiving subunit, configured to transmit a first ripple signal to an eye point at each edge point, and receive a plurality of second ripple signals fed back by the driver's side window glass based on the first ripple signal;

[0042] The first construction subunit is used to construct the field of view channel area according to the position coordinates of each second ripple signal.

[0043] In combination with the second aspect and the foregoing implementation manner, in some possible implementation manners, the second building unit includes:

[0044] A second determining subunit, used to determine the coordinates of a plurality of light-emitting points of the vehicle-mounted display screen;

[0045] a third determination subunit, configured to determine a first midpoint between the eye point position and the coordinates of any one of the multiple light-emitting points, and based on the first midpoint, determine multiple target points on a straight line where the eye point position and the coordinates of any one of the multiple light-emitting points are located, and determine a projection point of each target point on the driver's side window glass;

[0046] A first generating subunit is used to obtain an imaging point of any light-emitting point on the driver's side vehicle window glass based on the eye point position, the coordinates of any light-emitting point and the projection point of each target point on the driver's side vehicle window glass;

[0047] a fourth determination subunit, used for re-determining the first midpoint between the eye point position and the coordinates of any one of the remaining plurality of light-emitting points, until an imaging point corresponding to the coordinates of each light-emitting point is obtained;

[0048] The second generating subunit is used to obtain a virtual imaging area of ​​the driver's side vehicle window glass according to the imaging point corresponding to the coordinates of each light-emitting point.

[0049] In combination with the second aspect and the foregoing implementation manner, in some possible implementation manners, the first generating subunit includes:

[0050] A first construction sub-component is used to construct a target circle corresponding to any target point based on the eye point position, the coordinates of any light-emitting point and the projection point of any target point among the multiple target points on the driver's side window glass, and to construct another intersection point of the target circle corresponding to any target point based on the straight line where the projection point of any target point on the driver's side window glass is located and the any target point;

[0051] A second construction subcomponent is used to reconstruct a target circle corresponding to any one of the remaining multiple target points based on the eye point position, the coordinates of any one of the light-emitting points and the projection point of any one of the remaining multiple target points on the driver's side window glass until all other intersection points are obtained;

[0052] A sub-component is generated, which is used to construct a target parabola based on all the other intersection points, and obtain a virtual intersection point according to the intersection point of the perpendicular line of the first midpoint and the target parabola, and use the projection of the virtual intersection point on the driver's side window glass as the imaging point of any light-emitting point on the driver's side window glass.

[0053] In combination with the second aspect and the above implementations, in some possible implementations, before collecting the eye position of the driver, the current position of the first rearview mirror of the current vehicle, and the boundary information of the vehicle display screen, the collection module further includes:

[0054] A detection unit, used to detect the light intensity of the environment in which the vehicle is currently located;

[0055] A determination unit is configured to determine, when the light intensity is lower than a first preset threshold, whether the first light guide area and the second light guide area satisfy a preset optimization condition.

[0056] In combination with the second aspect and the above implementations, in some possible implementations, the optimization module further includes:

[0057] The control unit is used to control the light guide grids in the first light guide area to be adjusted to a first target color in a first direction, and to control the light guide grids in the second light guide area to be adjusted to a second target color in a second direction.

[0058] In a third aspect, a vehicle is provided, including a display method of a vehicle display screen as described in the above embodiment.

[0059] In a fourth aspect, a computer-readable storage medium is provided, which stores a computer program code. When the computer program code runs on a computer, the computer executes the display method of the vehicle display screen in the above-mentioned first aspect or any possible implementation of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a schematic diagram of a method for controlling light guide by pasting a grille film on a screen in the related art;

[0061] Figure 2 is a schematic diagram of the architecture of a vehicle provided according to an embodiment of the present application;

[0062] Figure 3 is a flow chart of a display method of a vehicle display screen provided according to an embodiment of the present application;

[0063] Figure 4 is a schematic diagram of constructing a visual field channel area according to an embodiment of the present application;

[0064] Figure 5 is a schematic diagram of constructing a virtual imaging area according to an embodiment of the present application;

[0065] Figure 6 is a schematic diagram of constructing a virtual imaging area according to an embodiment of the present application;

[0066] Figure 7 is a schematic diagram of a light guide area provided according to an embodiment of the present application;

[0067] Figure 8 is a schematic diagram of the color change of the grid in the first light guide area provided according to an embodiment of the present application;

[0068] Fig. 9is a schematic diagram of the color change of the grid in the second light guide area provided according to an embodiment of the present application;

[0069] Fig.10 is a schematic diagram of an imaging effect after light adjustment provided according to an embodiment of the present application;

[0070] Fig.11 is a flow chart of a display method of a vehicle display screen provided according to an embodiment of the present application;

[0071] Fig.12 is a block diagram of a display device of a vehicle-mounted display screen provided according to an embodiment of the present application;

[0072] Fig.13 It is a system schematic diagram of a vehicle provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0073] The technical solution in the present application will be described clearly and in detail below in conjunction with the accompanying drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0074] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0075] In order to avoid imaging on the front windshield and side windows, traditional display screens often use grille films to control light guide, such as Figure 1 As shown, within the vertical range, the screen luminous angle is controlled within a 60° angle with the screen to prevent light from falling on the front windshield and solve the front windshield imaging problem, or within the horizontal range, the screen luminous angle is controlled within a 60° angle with the screen to make the light fall behind the rearview mirror field of view channel area to prevent imaging from affecting the observation of the outside rearview mirror.

[0076] Therefore, the related technology can only achieve light control in a single vertical or horizontal direction, and cannot solve the problem of simultaneous imaging of the front windshield and the side windshield. In order to avoid this situation, the embodiment of the present application can automatically adjust the light emitting angle of the display screen by area by locating the position of the driver's eyes and the rearview mirror, and using the horizontal and vertical grille color change technology of the display screen to solve the problem that the film can only prevent imaging in one direction. At the same time, according to the display UI interface display, the light guide area is adaptively adjusted in real time to balance and optimize the front and side fields of view, making the driving field of view safer.

[0077] Next, the application scenario or system architecture of the embodiment of the present application will be described. Figure 2 The vehicle mainly includes a light sensor 1, an infrared camera 2, an exterior rearview mirror integrated sensor 3, and a display screen 4.

[0078] The embodiment of the present application senses changes in external light through the light sensor at the light sensor 1, the camera at the infrared camera 2 collects the driver's facial features and identifies the position of the human eyes, and the exterior rearview mirror integrated sensor at the exterior rearview mirror integrated sensor 3 locates the usage position of the rearview mirror. The above information is collected and fed back to the vehicle control module. After modeling and analysis, the module determines that the display screen at the display screen 4 is divided into imaging areas for the front windshield and the side windshield, and adjusts the color of the horizontal and vertical grilles of the display screen, thereby realizing the light guiding function in different directions in different areas.

[0079] Figure 3 This is a schematic flow chart of a display method of a vehicle display screen provided in an embodiment of the present application.

[0080] like Figure 3 As shown, the display method of the vehicle display screen includes the following steps:

[0081] In step S301, the eye point position of the driver, the current position of the first rearview mirror of the current vehicle and the boundary information of the vehicle display screen are collected.

[0082] The eye point position is the coordinates of the driver's eye position; the boundary information is the boundary coordinate information of the vehicle-mounted display screen.

[0083] In the actual implementation process, the driver's eye position can be obtained by, for example, collecting facial information through a camera, identifying the position of the eyes, and recording the eye coordinates. The eye position can be used to construct the field of view channel area and the virtual imaging area; collecting the current position of the first rearview mirror of the current vehicle can be used to construct the field of view channel area; collecting the boundary information of the vehicle-mounted display screen can be used to construct the virtual imaging area.

[0084] It should be noted that the specific usage of the above-mentioned driver's eye point position, the current position of the first rearview mirror of the current vehicle and the boundary information of the vehicle display screen will be explained below.

[0085] Optionally, in some embodiments, the first rearview mirror is a driver's side rearview mirror.

[0086] The driver's eye point position can be determined by obtaining eye point coordinates from a camera, and the boundary information of the vehicle display screen can be pre-stored in the vehicle control module.

[0087] Specifically, Figure 2 As shown, the embodiment of the present application can collect the driver's facial features and identify the coordinates of the eye position through the infrared camera 2, locate the use position of the rearview mirror through the exterior rearview mirror integrated sensor 3, and read the vehicle control module to obtain the boundary information of the vehicle display screen.

[0088] Optionally, in some embodiments, before collecting the driver's eye position, the current position of the first rearview mirror of the current vehicle and the boundary information of the vehicle-mounted display screen, it also includes: detecting the light intensity of the current vehicle's environment; if the light intensity is lower than a first preset threshold, determining that the first light guide area and the second light guide area meet the preset optimization conditions.

[0089] Among them, the first preset threshold can be pre-set by the user, can be obtained through a limited number of experiments, or can be obtained through a limited number of computer simulations. No specific limitation is made here. The light intensity can be obtained through a light sensor, and the preset optimization condition can be the first preset threshold of the light intensity.

[0090] It is understandable that, combined with Figure 2 As shown, when the light intensity of the external environment is dark, the display screen is easily imaged on the front windshield and the side windshield, affecting the driving line of sight. Therefore, the embodiment of the present application can obtain the light intensity of the current vehicle environment through the light sensor 1 before collecting the driver's eye point position, the current position of the first rearview mirror of the current vehicle and the boundary information of the vehicle-mounted display screen, and when the light intensity reaches the first preset threshold value, it is determined that the first light guide area and the second light guide area meet the preset optimization conditions.

[0091] In step S302, the visual field channel area and the virtual imaging area of ​​the driver's side window glass are constructed according to the eye point position, the current position and the boundary information.

[0092] Among them, the field of vision channel area is the virtual field of vision channel area formed by the driver's line of sight on the side window of the vehicle when observing the rearview mirror, and the virtual imaging area is the projection area formed by the display screen on the driver's side window of the vehicle.

[0093] Specifically, the field of view channel area can be as follows Figure 4As shown, it is a virtual field of view channel formed by the driver on the driver's side window glass for observing the rearview mirror. In order for the driver to clearly observe the rearview mirror at any time, the embodiment of the present application can construct a field of view channel area in real time according to the eye point position and the current position of the rearview mirror. It can be understood that when the light intensity outside the vehicle is lower than that inside the vehicle, the display screen 4 is easy to form a virtual image on the front windshield and also on the side windshield. The embodiment of the present application can calculate the field of view channel area of ​​the side windshield on the driver's side window glass according to the driver's eye point position and the boundary information of the display screen.

[0094] Optionally, in some embodiments, the field of view channel area and the virtual imaging area of ​​the driver's side window glass are constructed according to the eye point position, the current position and the boundary information, including: constructing the field of view channel area of ​​the driver's side window glass according to the eye point position and the current position; constructing the virtual imaging area of ​​the driver's side window glass according to the eye point position and the boundary information.

[0095] During the actual implementation process, the embodiment of the present application can construct the field of view channel area of ​​the driver's side window glass according to the pre-collected eye point position coordinates and the current position of the first rearview mirror, and construct the virtual imaging area of ​​the driver's side window glass according to the pre-collected eye point position coordinates and the boundary information of the display screen obtained from the vehicle control module.

[0096] Optionally, in some embodiments, a field of view channel area of ​​the driver's side window glass is constructed based on the eye point position and the current position, including: determining multiple edge points of the first rearview mirror; emitting a first ripple signal to the eye point position at each edge point, and receiving multiple second ripple signals fed back by the driver's side window glass based on the first ripple signal; and constructing the field of view channel area according to the position coordinates of each second ripple signal.

[0097] Here, the embodiments of the present application further explain how to construct the field of view channel area.

[0098] The first ripple signal may be a radar wave, and the second ripple signal may be a radar wave fed back by the driver's side window glass based on the first ripple signal.

[0099] Relevant technical personnel in this field can understand that when the driver observes the rearview mirror, the line of sight from the eye point position to the rearview mirror will form a field of view channel area on the driver's side window glass. The embodiment of the present application can send multiple first ripple signals in reverse from the edge of the rearview mirror to the driver's eye point position, and receive multiple second ripple signals fed back from the driver's side glass. The position coordinates of the multiple second ripple signals can be connected to form a field of view channel area.

[0100] In the actual implementation process, Figure 4As shown, the embodiment of the present application can collect the driver's facial features through the infrared camera 1, identify the driver's eyes, transmit the signal to the vehicle control module, record the eye point position coordinate E, and locate the current driver's side rearview mirror position through the sensor 2 integrated in the exterior rearview mirror. The sensor 2 integrated in the exterior rearview mirror simultaneously transmits the first ripple signal from the lens edge N1, N2 to NN point to the driver's eye point E, receives the band fed back from the side window, and records it as n1, n2 to nn points. The modeling module of the vehicle control constructs the rearview mirror field of view channel area through the position coordinates of n1, n2 to nn points.

[0101] Optionally, in some embodiments, a virtual imaging area of ​​the driver's side window glass is constructed based on the eye point position and boundary information, including: determining the coordinates of multiple light-emitting points of the vehicle display screen; determining a first midpoint between the eye point position and the coordinates of any light-emitting point among the multiple light-emitting points, and based on the first midpoint, determining multiple target points on the straight line where the eye point position and the coordinates of any light-emitting point are located, and determining the projection point of each target point on the driver's side window glass; obtaining an imaging point of any light-emitting point on the driver's side window glass based on the eye point position, the coordinates of any light-emitting point and the projection point of each target point on the driver's side window glass; re-determining the first midpoint between the eye point position and the coordinates of any light-emitting point among the remaining multiple light-emitting points until an imaging point corresponding to the coordinates of each light-emitting point is obtained; and obtaining the virtual imaging area of ​​the driver's side window glass according to the imaging point corresponding to the coordinates of each light-emitting point.

[0102] Here, the embodiments of the present application further explain how to construct a virtual imaging area.

[0103] Among them, the coordinates of the multiple light-emitting points of the vehicle display screen can be the coordinates of the light-emitting points at the edge of the vehicle display screen or the coordinates of the light-emitting points of the entire screen of the vehicle display screen. To avoid subsequent calculation redundancy, the coordinates of the light-emitting points at the edge of the vehicle display screen can be preferred. For example, when the vehicle display screen is a rectangle, the coordinates of the multiple light-emitting points of the vehicle display screen are the position coordinates of the four corners of the rectangle.

[0104] It is understandable that, combined with Figure 5 and Figure 6As shown, the embodiment of the present application can determine the projection coordinates of multiple light-emitting point coordinates of the vehicle-mounted display screen on the driver's side glass, and connect all the projection coordinates to obtain a virtual imaging area. Taking the calculation of the virtual imaging area of ​​the front windshield as an example, multiple target points M, M2, M3, M4 and M5 are determined according to the eye point position coordinate E and the first midpoint m of any light-emitting point coordinate A, and the projection point of each target point on the driver's side window glass is determined. Based on the eye point position E, any light-emitting point coordinate A and the projection point of each target point on the driver's side window glass, an imaging point A" of any light-emitting point on the driver's side window glass is obtained; the eye point position and the first midpoint of any light-emitting point coordinate of the remaining multiple light-emitting points B, C and D are re-determined until the imaging points B", C" and D" corresponding to each light-emitting point coordinate are obtained; the virtual imaging area of ​​the driver's side window glass is obtained according to the imaging point corresponding to each light-emitting point coordinate.

[0105] Optionally, in some embodiments, the imaging point of any light-emitting point on the driver's side window glass is obtained based on the eye point position, the coordinates of any light-emitting point and the projection point of each target point on the driver's side window glass, including: constructing a target circle corresponding to any target point based on the eye point position, the coordinates of any light-emitting point and the projection point of any target point among multiple target points on the driver's side window glass, and another intersection point of the target circle corresponding to any target point based on any target point and the straight line where the projection point of any target point on the driver's side window glass is located; re-constructing a target circle corresponding to any target point among the remaining multiple target points based on the eye point position, the coordinates of any light-emitting point and the projection point of any target point among the remaining multiple target points on the driver's side window glass until all other intersection points are obtained; constructing a target parabola based on all other intersection points, and obtaining a virtual intersection point based on the intersection point of the perpendicular line of the first midpoint and the target parabola, and taking the projection of the virtual intersection point on the driver's side window glass as the imaging point of any light-emitting point on the driver's side window glass.

[0106] Specifically, Figure 5 As shown, the embodiment of the present application can construct a target circle corresponding to any target point based on the eye point position E, the coordinates A of any light emitting point and the projection point M' of any target point among the multiple target points on the driver's side window glass, and another intersection point M' of the target circle corresponding to any target point according to the straight line LMM' where any target point M and the projection point M' of any target point on the driver's side window glass are located; re-construct a target circle corresponding to any target point among the remaining multiple target points based on the eye point position, the coordinates B, C, D, etc. of any light emitting point and the projection point of any target point among the remaining multiple target points M2, M3, M4, M5, etc. on the driver's side window glass, until all the other intersection points M2', M3', M4' and M5' are obtained; construct a target parabola based on all the other intersection points, and obtain a virtual intersection point A' according to the intersection of the perpendicular line of the first midpoint m and the target parabola, and use the projection of the virtual intersection point on the driver's side window glass as the imaging point of any light emitting point on the driver's side window glass.

[0107] In summary, combined Figure 5 and Figure 6 As shown, this application takes the calculation of the virtual imaging area of ​​the front windshield as an example, and constructs the imaging area through the modeling module of the whole vehicle control; wherein,

[0108] (1) The coordinates of the display screen light points A, B, C, D, etc. stored in the vehicle control module;

[0109] (2) The midpoint between the eye point E and the light-emitting point A is denoted as m, Lm = LEA / 2;

[0110] (3) Record point M on line AE, LM = LEA / 2 + △L;

[0111] (4) The projection point of point M on the front windshield is denoted as M”;

[0112] (5) Construct a circle with three points E, A, and M'. The intersection of the line MM' and the circle is denoted as M';

[0113] (6) Take 5 sets of values ​​of △L and use the formula LM=LEA / 2+△L to calculate the five sets of M points, namely M1, M2…M5, and M'1, M'2…M'5 corresponding to the three-point circle, and construct a parabola from the five points M';

[0114] (7) The intersection of the perpendicular line through point m and the parabola is denoted as A', and the projection of A' on the front windshield is A". That is, the image point of the luminous point A on the front windshield is A", and similarly, the image point on the side windshield is a".

[0115] To avoid redundancy, the calculation process of a”b”c”d” is not described here, and the final result is as follows Figure 7 The display screen ABCD shown has a virtual imaging area of ​​A”B”C”D” on the front windshield and a virtual imaging area of ​​a”b”c”d” on the driver’s side glass.

[0116] In step S303, the interference area is determined according to the overlapping area of ​​the field of view channel area and the virtual imaging area, and the first light guide area and the second light guide area of ​​the vehicle display screen are determined according to the interference area, and the corresponding light guide grating of the first light guide area and the light guide grating of the second light guide area are optimized respectively.

[0117] Optionally, respectively optimizing the corresponding light guide gratings of the first light guide area and the second light guide area further includes: controlling the light guide gratings of the first light guide area to be adjusted to a first target color in a first direction, and controlling the light guide gratings of the second light guide area to be adjusted to a second target color in a second direction.

[0118] Among them, the first light guiding area can be a light guiding area for preventing imaging of the driver's side glass; the second light guiding area can be a light guiding area for preventing virtual imaging of the front windshield; the first direction and the second direction can be pre-set or obtained through multiple experiments, and are not specifically limited here; the first target color and the second target color can be pre-set or obtained through multiple experiments, and are not specifically limited here.

[0119] For example, the first direction can be to control the screen emission angle within 60° with the screen in the horizontal range, and the second direction can be to control the screen emission angle within 60° with the screen in the vertical range. The first target color and the second target color can be dark gray.

[0120] It can be understood that the overlapping part of the driver's field of vision channel area on the driver's side glass and the virtual imaging area of ​​the display screen on the driver's side glass is an interference area that interferes with the driving vision. The first light guide area can be determined by the interference area, and the other areas of the vehicle-mounted display screen except the first light guide area can be used as the second light guide area.

[0121] In the actual implementation process, Figure 7 As shown, the vehicle control module determines the imaging points that fall in the rearview mirror field of view channel area through calculation and analysis. The screen luminous points corresponding to this part of the imaging points constitute the side window light guide area, and the rest is the front windshield light guide area.

[0122] When the light sensor at 1 detects that the ambient light is lower than the set value, the vehicle controller sends a command to the display screen, and the horizontal and vertical grille structures on the display screen turn dark in different directions, thereby forming light guide grilles in different directions. The side windshield light guide area forms a longitudinal grille such as Figure 8 , the front windshield light guide area forms a horizontal grille such as Fig. 9 , and finally realize the screen area light guidance Fig.10 .

[0123] It should be noted that the embodiments of the present application can also capture the position of human eyes without using the camera of intelligent driving. In the early stage of vehicle development, the screen partitioning can be simulated according to the design position of the human eyes. The screen partitions are fixed areas and will not be flexibly adjusted according to the changes in the actual driver's eyes and the display UI interface. However, it is still better than the current single-directional light-guiding grating film and can be used as a transitional solution before the full implementation of intelligent driving.

[0124] In order to enable relevant technical personnel in the field to further understand the display method of the vehicle display screen of the embodiment of the present application, it is elaborated in detail below in combination with specific embodiments.

[0125] like Fig.11 As shown, Fig.11 A flow chart of a display method for a vehicle display screen proposed in this application;

[0126] S1101, collect the driver's facial features through the camera, identify the driver's eye position, and feed it back to the vehicle control module, and jump to S1103;

[0127] S1102, locate the current position of the exterior rearview mirror through the exterior rearview mirror integrated sensor, detect the current position of the side windshield through radar waves, and feed back to the vehicle control module;

[0128] S1103, constructing a side window visual field channel area according to the eye point and the position of the exterior rearview mirror;

[0129] S1104, based on the eye point and the display screen boundary, the vehicle control module models the front windshield and side windshield virtual imaging areas;

[0130] S1105, determining the side window light guide area of ​​the display screen according to the side window imaging interference area, and the remaining area is determined as the front windshield light guide area;

[0131] S1106, when the light sensor detects that the ambient light is lower than the set value, the vehicle controller sends a command to the display screen, and the horizontal grid structure on the display screen turns dark in different directions.

[0132] Therefore, the light sensor senses the changes in external light, and the camera collects the driver's facial features and identifies the position of the eyes. The integrated sensor in the exterior rearview mirror locates the usage position of the rearview mirror. The above information is collected and fed back to the vehicle control module. After modeling and analysis, the module determines the imaging partitions of the display screen on the front windshield and side windows, and adjusts the color of the horizontal and vertical grilles of the display screen, thereby realizing the light guiding function in different directions in different areas.

[0133] According to the display method of the vehicle display screen proposed in the embodiment of the present application, the driver's eye point position, the current position of the first rearview mirror of the current vehicle and the boundary information of the vehicle display screen are collected; the visual field channel area and the virtual imaging area of ​​the driver's side window glass are constructed according to the eye point position, the current position and the boundary information; and the interference area is determined according to the overlapping area of ​​the visual field channel area and the virtual imaging area, and the first light guide area and the second light guide area of ​​the vehicle display screen are determined according to the interference area, and the corresponding light guide grille of the first light guide area and the light guide grille of the second light guide area are optimized respectively. Thus, by adjusting the color of the horizontal and vertical grilles of the display screen, light guide grilles of different directions are formed, so that the imaging of the side windshield does not affect the observation of the exterior rearview mirror, while reducing the influence of the imaging of the front windshield on the front field of view, solving the problem that the display screen is imaged on the front windshield and the side windshield at the same time, affecting the driving line of sight, and adjusting the light guide area in real time and adaptively, balancing and optimizing the front and side field of view, making the driving field of view safer.

[0134] Fig.12It is a structural schematic diagram of a display device of a vehicle-mounted display screen provided in an embodiment of the present application.

[0135] For example, Fig.12 As shown, the device 10 may include: a collection module 100 , a construction module 200 and an optimization module 300 .

[0136] The acquisition module 100 is used to acquire the eye position of the driver, the current position of the first rearview mirror of the current vehicle, and the boundary information of the vehicle display screen.

[0137] The construction module 200 is used to construct the visual field channel area and the virtual imaging area of ​​the driver's side window glass according to the eye point position, the current position and the boundary information.

[0138] The optimization module 300 is used to determine the interference area according to the overlapping area of ​​the field of view channel area and the virtual imaging area, and determine the first light guide area and the second light guide area of ​​the vehicle display screen according to the interference area, and respectively optimize the corresponding light guide grating of the first light guide area and the light guide grating of the second light guide area.

[0139] Optionally, in some embodiments, the building block 200 includes: a first building unit and a second building unit.

[0140] Wherein, the first construction unit is used to construct the field of view channel area of ​​the driver's side window glass according to the eye point position and the current position.

[0141] The second construction unit is used to construct a virtual imaging area of ​​the driver's side window glass according to the eye point position and boundary information.

[0142] Optionally, in some embodiments, the first construction unit includes: a first determining subunit, a receiving subunit and a first construction subunit.

[0143] Wherein, the first determining subunit is used to determine multiple edge points of the first rearview mirror.

[0144] The receiving subunit is used to transmit a first ripple signal to the eye point position at each edge point respectively, and receive a plurality of second ripple signals fed back by the driver's side window glass based on the first ripple signal.

[0145] The first construction subunit is used to construct a field of view channel area according to the position coordinates of each second ripple signal.

[0146] Optionally, in some embodiments, the second construction unit includes: a second determining subunit, a third determining subunit, a first generating subunit, a fourth determining subunit and a second generating subunit.

[0147] Wherein, the second determination subunit is used to determine the coordinates of multiple light-emitting points of the vehicle-mounted display screen.

[0148] The third determination subunit is used to determine a first midpoint between the eye point position and the coordinates of any one of the multiple light-emitting points, and based on the first midpoint, determine multiple target points on the straight line where the eye point position and the coordinates of any one of the light-emitting points are located, and determine the projection point of each target point on the driver's side window glass.

[0149] The first generating subunit is used to obtain the imaging point of any light-emitting point on the driver's side window glass based on the eye point position, the coordinates of any light-emitting point and the projection point of each target point on the driver's side window glass.

[0150] The fourth determination subunit is used to re-determine the first midpoint between the eye point position and the coordinates of any light-emitting point among the remaining multiple light-emitting points until an imaging point corresponding to the coordinates of each light-emitting point is obtained.

[0151] The second generating subunit is used to obtain a virtual imaging area of ​​the driver's side vehicle window glass according to the imaging point corresponding to the coordinates of each light-emitting point.

[0152] Optionally, in some embodiments, the first generating subunit includes: a first building subcomponent, a second building subcomponent and a generating subcomponent.

[0153] Among them, the first construction sub-component is used to construct a target circle corresponding to any target point based on the eye point position, the coordinates of any light-emitting point and the projection point of any target point among multiple target points on the driver's side window glass, and another intersection point of the target circle corresponding to any target point based on the straight line where any target point and the projection point of any target point on the driver's side window glass are located.

[0154] The second construction subcomponent is used to reconstruct a target circle corresponding to any target point among the remaining multiple target points based on the eye point position, the coordinates of any light-emitting point and the projection point of any target point among the remaining multiple target points on the driver's side window glass until all other intersection points are obtained.

[0155] Generate a sub-component for constructing a target parabola based on all other intersection points, and obtain a virtual intersection point according to the intersection point of the perpendicular line of the first midpoint and the target parabola, and use the projection of the virtual intersection point on the driver's side window glass as the imaging point of any luminous point on the driver's side window glass.

[0156] Optionally, in some embodiments, before collecting the eye position of the driver, the current position of the first rearview mirror of the current vehicle and the boundary information of the vehicle display screen, the collection module 100 further includes: a detection unit and a determination unit.

[0157] The detection unit is used to detect the light intensity of the environment in which the vehicle is currently located.

[0158] The determination unit is used to determine that the first light guiding area and the second light guiding area meet a preset optimization condition when the light intensity is lower than a first preset threshold.

[0159] Optionally, in some embodiments, the optimization module 300 further includes: a control unit.

[0160] The control unit is used to control the light guide grid of the first light guide area to be adjusted to the first target color in the first direction, and to control the light guide grid of the second light guide area to be adjusted to the second target color in the second direction.

[0161] It should be noted that the above explanation of the embodiment of the display method of the vehicle-mounted display screen is also applicable to the display device of the vehicle-mounted display screen of this embodiment, and will not be repeated here.

[0162] According to the display device of the vehicle display screen proposed in the embodiment of the present application, the driver's eye point position, the current position of the first rearview mirror of the current vehicle and the boundary information of the vehicle display screen are collected; the visual field channel area and the virtual imaging area of ​​the driver's side window glass are constructed according to the eye point position, the current position and the boundary information; and the interference area is determined according to the overlapping area of ​​the visual field channel area and the virtual imaging area, and the first light guide area and the second light guide area of ​​the vehicle display screen are determined according to the interference area, and the corresponding light guide grille of the first light guide area and the light guide grille of the second light guide area are optimized respectively. Therefore, by adjusting the color of the horizontal and vertical grilles of the display screen, light guide grilles in different directions are formed, so that the imaging of the side windshield does not affect the observation of the exterior rearview mirror, while reducing the influence of the imaging of the front windshield on the front field of view, solving the problem that the display screen is imaged on the front windshield and the side windshield at the same time, affecting the driving line of sight, and adjusting the light guide area in real time and adaptively, balancing and optimizing the front and side field of view, making the driving field of view safer.

[0163] Fig.13 It is a structural schematic diagram of a vehicle provided in an embodiment of the present application.

[0164] It should be understood that the above-described method can be applied to Fig.13 In a vehicle of the structure shown.

[0165] In addition, an embodiment of the present application also protects a device, which may include a memory 1301 and a processor 1302, wherein the memory 1301 stores an executable program code, and the processor 1302 is used to call and execute the executable program code to execute the display method of the vehicle display screen provided in the embodiment of the present application.

[0166] Furthermore, the vehicle also includes: a communication interface 1303 for communication between the memory 1301 and the processor 1302 .

[0167] In this embodiment, the functional modules of the device can be divided according to the above method example. For example, each functional module can be corresponded, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware. It should be noted that the division of modules in this embodiment is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0168] In the case of dividing each functional module according to each function, the device may further include a judgment module and a control module, etc. It should be noted that all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here.

[0169] It should be understood that the device provided in this embodiment is used to execute the display method of the above-mentioned vehicle-mounted display screen, and thus can achieve the same effect as the above-mentioned implementation method.

[0170] In the case of an integrated unit, the device may include a processing module and a storage module. When the device is applied to a vehicle, the processing module may be used to control and manage the actions of the vehicle. The storage module may be used to support the vehicle in executing mutual program codes, etc.

[0171] The processing module may be a processor 1302 or a controller, which may implement or execute various exemplary logic blocks, modules and circuits disclosed in the present application. The processor 1302 may also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, etc. The storage module may be a memory 1301.

[0172] In addition, the device provided in the embodiments of the present application may specifically be a chip, a component or a module, and the chip may include a connected processor 1302 and a memory 1301; wherein the memory 1301 is used to store instructions, and when the processor 1302 calls and executes the instructions, the chip can execute the display method of the vehicle display screen provided in the above embodiments.

[0173] This embodiment also provides a computer-readable storage medium, which stores computer program code. When the computer program code runs on a computer, the computer executes the above-mentioned related method steps to implement the display method of the vehicle display screen provided by the above-mentioned embodiment.

[0174] This embodiment also provides a computer program product. When the computer program product is run on a computer, the computer is caused to execute the above-mentioned related steps to implement the display method of the vehicle display screen provided in the above-mentioned embodiment.

[0175] Among them, the device, computer-readable storage medium, computer program product or chip provided in this embodiment is used to execute the corresponding method provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method provided above, and will not be repeated here.

[0176] Through the description of the above implementation methods, technical personnel in the relevant field can understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0177] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0178] The above contents are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A display method for a vehicle-mounted display screen, characterized in that: The following steps are involved: Collect the driver's eye point position, the current position of the first rearview mirror of the current vehicle, and the boundary information of the vehicle display screen; Constructing a visual field channel area and a virtual imaging area of ​​a driver's side vehicle window glass according to the eye point position, the current position of the first rearview mirror and the boundary information; as well as An interference area is determined according to an overlapping area between the field of view channel area and the virtual imaging area, and a first light guide area and a second light guide area of ​​the vehicle display screen are determined according to the interference area, and the corresponding light guide gratings of the first light guide area and the second light guide area are optimized respectively.

2. The method according to claim 1, characterized in that The step of constructing the visual field channel area and the virtual imaging area of ​​the driver's side window glass according to the eye point position, the current position and the boundary information includes: Constructing the visual field channel area of ​​the driver's side window glass according to the eye point position and the current position of the first rearview mirror; A virtual imaging area of ​​the driver's side window glass is constructed according to the eye point position and the boundary information.

3. The method according to claim 2, characterized in that The step of constructing the visual field channel area of ​​the driver's side window glass according to the eye point position and the current position includes: determining a plurality of edge points of the first rearview mirror; Transmitting a first ripple signal to an eye point position at each edge point respectively, and receiving a plurality of second ripple signals fed back by the driver's side window glass based on the first ripple signal; The field of view channel area is constructed according to the position coordinates of each second ripple signal.

4. The method according to claim 2 or 3, characterized in that: The step of constructing a virtual imaging area of ​​the driver's side window glass according to the eye point position and the boundary information includes: Determining the coordinates of multiple light-emitting points of the vehicle-mounted display screen; Determine a first midpoint between the eye point position and the coordinates of any one of the multiple light-emitting points, and based on the first midpoint, determine multiple target points on a straight line where the eye point position and the coordinates of any one of the light-emitting points are located, and determine a projection point of each target point on the driver's side window glass; Obtaining an imaging point of any light-emitting point on the driver's side window glass based on the eye point position, the coordinates of any light-emitting point and the projection point of each target point on the driver's side window glass; Re-determining the first midpoint between the eye point position and the coordinates of any one of the remaining multiple light-emitting points until an imaging point corresponding to the coordinates of each light-emitting point is obtained; A virtual imaging area of ​​the driver's side window glass is obtained according to the imaging point corresponding to the coordinates of each light-emitting point.

5. The method according to claim 4, characterized in that The method of obtaining an imaging point of any light-emitting point on the driver's side window glass based on the eye point position, the coordinates of any light-emitting point and the projection point of each target point on the driver's side window glass comprises: Based on the eye point position, the coordinates of any one of the plurality of target points and the projection point of any one of the plurality of target points on the driver's side window glass, a target circle corresponding to the any one of the target points is constructed, and based on another intersection point of the target circle corresponding to the any one of the target points and the straight line where the projection point of the any one of the target points on the driver's side window glass is located; Re-constructing a target circle corresponding to any one of the remaining multiple target points based on the eye point position, the coordinates of any one of the light-emitting points, and the projection point of any one of the remaining multiple target points on the driver's side window glass until all other intersection points are obtained; A target parabola is constructed based on all the other intersection points, and a virtual intersection point is obtained according to the intersection point of the perpendicular line of the first midpoint and the target parabola, and the projection of the virtual intersection point on the driver's side window glass is used as the imaging point of any light-emitting point on the driver's side window glass.

6. The method according to claim 1, characterized in that Before collecting the eye position of the driver, the current position of the first rearview mirror of the current vehicle and the boundary information of the vehicle display screen, it also includes: Detecting the light intensity of the environment in which the current vehicle is located; If the light intensity is lower than a first preset threshold, it is determined that the first light guiding area and the second light guiding area meet a preset optimization condition.

7. The method according to claim 1, characterized in that The respectively optimizing the corresponding light guide grating of the first light guide area and the light guide grating of the second light guide area further includes: The light guide grids in the first light guide area are controlled to be adjusted to a first target color in a first direction, and the light guide grids in the second light guide area are controlled to be adjusted to a second target color in a second direction.

8. A display device for a vehicle-mounted display screen, characterized in that: include: A collection module, used to collect the driver's eye point position, the current position of the first rearview mirror of the current vehicle and the boundary information of the vehicle display screen; A construction module, used for constructing a visual field channel area and a virtual imaging area of ​​a driver's side vehicle window glass according to the eye point position, the current position and the boundary information; as well as An optimization module is used to determine an interference area according to an overlapping area between the field of view channel area and the virtual imaging area, and to determine a first light guide area and a second light guide area of ​​the vehicle display screen according to the interference area, and to optimize the corresponding light guide grating of the first light guide area and the light guide grating of the second light guide area respectively.

9. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the display method of the vehicle display screen as described in any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the display method of the vehicle-mounted display screen as described in any one of claims 1 to 7.

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