Moving angle deviation correction method and system based on moving and rotating vehicle-mounted display screen

Abstract

The invention relates to the technical field of vehicle-mounted display screen direction regulation and control, in particular to a moving angle deviation correction method and system based on a moving and rotating vehicle-mounted display screen, and the method comprises the steps: recognizing a real-time seat position angle according to a seat number, and calculating the real-time user sight according to the height of a user and the real-time seat position angle; calculating a target display site according to the target display distance and the real-time user sight line, determining an optimal display rectangular surface according to the real-time user sight line and the target display site, identifying an optimal three-dimensional coordinate system of the optimal display rectangular surface, and identifying a current three-dimensional coordinate system of the vehicle-mounted display screen; and performing position angle regulation and control on the vehicle-mounted display screen according to the current three-dimensional coordinate system and the optimal three-dimensional coordinate system until the current three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system to obtain a target regulation and control display screen. The regulation and control efficiency and the regulation and control precision of the vehicle-mounted display screen can be improved, and the watching experience of a user is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted display screen orientation control, and in particular to a moving angle correction method and system based on a moving and rotating vehicle-mounted display screen. Background Art

[0002] Traditional in-vehicle display screens are mostly fixedly installed on the dashboard or the back of the front seat, and their position and angle adjustment are greatly limited. This fixed installation method cannot meet the different needs of different passengers for the angle and position of the display screen.

[0003] At present, some vehicle-mounted display devices that can adjust the angle and position of the vehicle-mounted display screen have appeared. These vehicle-mounted display devices usually use a rotating mechanism and a moving mechanism to achieve the rotation and linear movement of the vehicle-mounted display screen. However, the control efficiency and control accuracy of these rotating mechanisms and moving mechanisms are not high, and it is difficult to perform differentiated control for users of different heights, resulting in a poor user viewing experience. Summary of the invention

[0004] The present invention provides a moving angle correction method and system based on a moving and rotating vehicle-mounted display screen, the main purpose of which is to improve the control efficiency and control accuracy of the vehicle-mounted display screen and enhance the user viewing experience.

[0005] To achieve the above-mentioned purpose, the present invention provides a method for correcting the moving angle of a mobile rotating vehicle-mounted display screen, comprising: Receive the user's height, seat number and target display distance input by the user, and identify the real-time seat angle according to the seat number, wherein the real-time seat angle includes: the real-time seat surface center position and the real-time seat back angle; Calculate the real-time user sight line according to the user height and the real-time seat angle, calculate the target display position according to the target display distance and the real-time user sight line, and determine the best display rectangular surface according to the real-time user sight line and the target display position; Identify the best three-dimensional coordinate system of the best display rectangular surface, wherein the best coordinate origin of the best three-dimensional coordinate system is the target display site, the x-axis of the best three-dimensional coordinate system passes through the best coordinate origin and is parallel to the best transverse edge line of the best display rectangular surface, the y-axis of the best three-dimensional coordinate system passes through the best coordinate origin and is parallel to the best longitudinal edge line of the best display rectangular surface, and the z-axis of the best three-dimensional coordinate system passes through the best coordinate origin and is perpendicular to the best display rectangular surface; Identify a current three-dimensional coordinate system of a preset vehicle display screen, wherein the current coordinate origin of the current three-dimensional coordinate system is located at the current center position of the vehicle display screen, the x-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current horizontal edge line of the vehicle display screen, the y-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current vertical edge line of the vehicle display screen, and the z-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is perpendicular to the screen of the vehicle display screen; The vehicle-mounted display screen is angle-controlled according to the current three-dimensional coordinate system and the optimal three-dimensional coordinate system until the current three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system, thereby obtaining a target controlled display screen.

[0006] Optionally, identifying the real-time seat angle according to the seat number includes: Identify the user seat according to the seat number, and identify the real-time control parameters of the user seat, wherein the real-time control parameters include seat height control parameters, seat slide control parameters, and seat back angle control parameters; Determine the real-time seat surface center position according to the seat surface height control parameter and the seat surface slide control parameter; The real-time seat back angle is determined according to the seat back angle control parameter.

[0007] Optionally, the calculating the real-time user sight line according to the user height and the real-time seat angle includes: Querying the seat viewpoint distance in a preset height-seat viewpoint distance table according to the user's height; Determining a real-time seat surface viewpoint modulus length according to the seat surface viewpoint distance, wherein the real-time seat surface viewpoint modulus length is equal to the seat surface viewpoint distance; Determine the real-time seat surface viewpoint direction according to the real-time seat back angle; Taking the real-time seat surface center position as the seat surface viewpoint vector starting point, determining the real-time seat surface viewpoint vector according to the seat surface viewpoint vector starting point, the real-time seat surface viewpoint modulus and the real-time seat surface viewpoint direction; According to the real-time chair surface viewpoint vector, the best user sight line is searched in a pre-constructed chair surface viewpoint vector-sight line reference table, and the best user sight line is used as the real-time user sight line, wherein the real-time user sight line includes: a real-time sight line viewpoint and a real-time sight line direction.

[0008] Optionally, the calculating the target display position according to the target display distance and the real-time user line of sight includes: A target display position is intercepted on the real-time user line of sight according to the target display distance and the real-time line of sight viewpoint, wherein the distance between the target display position and the real-time line of sight viewpoint is the target display distance.

[0009] Optionally, determining the best display rectangular surface according to the real-time user line of sight and the target display position includes: Obtain a standard display rectangle, wherein the long side of the standard display rectangle is parallel to a preset horizontal plane, and the wide side of the rectangle is perpendicular to the horizontal plane; Identify the standard rectangle center of the standard display rectangle, translate the standard display rectangle according to the target display position and the standard rectangle center to obtain a dynamic translation rectangle, identify the dynamic translation center of the dynamic translation rectangle until the dynamic translation center coincides with the target display position to obtain a center coincidence display rectangle, The angle of the center overlap display rectangle is adjusted according to the real-time user line of sight to obtain a dynamic angle control rectangle; Identify the dynamic line-plane angle between the dynamic corner control rectangle and the real-time user's line of sight; Determining whether the dynamic line-plane angle is equal to a preset comfortable line-plane angle; If the dynamic line-plane angle is not equal to the comfortable line-plane angle, return to the above step of adjusting the angle of the center overlap display rectangle according to the real-time user line of sight; If the dynamic line-plane angle is equal to the comfortable line-plane angle, the optimal display rectangular surface is obtained.

[0010] Optionally, the identifying the best three-dimensional coordinate system for the best display rectangular surface includes: Identify the best horizontal edge line, the best vertical edge line and the best screen vertical line of the best display rectangular surface; Taking the target display site as the optimal coordinate origin, respectively identifying the optimal horizontal positive direction, the optimal vertical positive direction and the optimal vertical positive direction of the optimal horizontal edge line, the optimal vertical edge line and the optimal screen vertical line; Determine the best x-axis positive direction of the best three-dimensional coordinate system according to the best transverse positive direction, determine the best y-axis positive direction of the best three-dimensional coordinate system according to the best longitudinal positive direction, and determine the best z-axis positive direction of the best three-dimensional coordinate system according to the best vertical positive direction; The optimal three-dimensional coordinate system is determined according to the optimal coordinate origin, the optimal positive direction of the x-axis, the optimal positive direction of the y-axis, and the optimal positive direction of the z-axis.

[0011] Optionally, the identifying a current three-dimensional coordinate system of a preset vehicle-mounted display screen includes: Identifying a current horizontal edge line, a current vertical edge line, and a current screen vertical line of the vehicle-mounted display screen; Taking the current screen center point as the current coordinate origin, respectively identifying the current horizontal positive direction, the current vertical positive direction and the current vertical positive direction of the current horizontal edge line, the current vertical edge line and the current screen vertical line; Determine the current positive x-axis direction of the current three-dimensional coordinate system according to the current positive horizontal direction, determine the current positive y-axis direction of the current three-dimensional coordinate system according to the current positive vertical direction, and determine the current positive z-axis direction of the current three-dimensional coordinate system according to the current positive vertical direction; The current three-dimensional coordinate system is determined according to the current coordinate origin, the current positive direction of the x-axis, the current positive direction of the y-axis, and the current positive direction of the z-axis.

[0012] Optionally, the adjusting the angle of the vehicle-mounted display screen according to the current three-dimensional coordinate system and the optimal three-dimensional coordinate system until the current three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system to obtain a target adjusted display screen includes: The vehicle-mounted display screen is moved to the target display position according to the current coordinate origin and the optimal coordinate origin in the current three-dimensional coordinate system to obtain a first displacement display screen, wherein the first screen center position of the first displacement display screen coincides with the target display position; Identify a first three-dimensional coordinate system of the first displacement display screen and a first three-dimensional coordinate origin of the first three-dimensional coordinate system, and identify an x-axis angle, a y-axis angle, and a z-axis angle between the first three-dimensional coordinate system and the optimal three-dimensional coordinate system, wherein the first three-dimensional coordinate origin coincides with a target display site; Identify the minimum axis angle among the x-axis angle, the y-axis angle, and the z-axis angle, and identify that the minimum axis angle corresponds to a first minimum angle axis in the first three-dimensional coordinate system and an optimal minimum angle rotation axis in the optimal three-dimensional coordinate system, wherein the minimum axis angle is the axis angle between the first minimum angle axis and the optimal minimum angle axis; According to the optimal minimum angle axis, the first minimum angle axis is angle-controlled and the origin of the first three-dimensional coordinate is kept fixed to obtain a dynamic first angle axis; Determining whether the dynamic first angle axis coincides with the optimal minimum angle axis; If the dynamic first angle axis does not coincide with the optimal minimum angle axis, return to the above step of adjusting the angle of the first minimum angle axis according to the optimal minimum angle axis and keeping the origin of the first three-dimensional coordinate fixed; If the dynamic first angle axis coincides with the optimal minimum angle axis, a second angle-shifting display screen is obtained; Identifying a second three-dimensional coordinate system of the second angle-shifted display screen and a second minimum angle axis of the second three-dimensional coordinate system, wherein the second minimum angle axis coincides with the optimal minimum angle axis; Performing a fixed-axis rotation on the second angular shift display screen according to the second minimum angle axis to obtain a dynamic second three-dimensional coordinate system; Determining whether the dynamic second three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system; If the dynamic second three-dimensional coordinate system does not coincide with the optimal three-dimensional coordinate system, returning to the above step of performing fixed-axis rotation on the second angular shift display screen according to the second minimum angle axis; If the dynamic second three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system, a target controlled display screen is obtained.

[0013] Optionally, the step of moving the vehicle-mounted display screen to the target display position according to the current coordinate origin and the optimal coordinate origin in the current three-dimensional coordinate system to obtain a first displacement display screen includes: Determine a first displacement vector according to the current coordinate origin and the optimal coordinate origin, wherein the vector starting point of the first displacement vector is the current coordinate origin, and the vector end point of the first displacement vector is the optimal coordinate origin; The vehicle-mounted display screen is moved to the target display position according to the first displacement vector to obtain a first displacement display screen.

[0014] To achieve the above object, the present invention also provides a moving angle correction system based on a moving rotating vehicle-mounted display screen, comprising: The module for determining the optimal display rectangular surface is used to receive the user's height, seat number and target display distance input by the user, identify the real-time seat angle according to the seat number, wherein the real-time seat angle includes: the real-time seat surface center position and the real-time seat back angle; calculate the real-time user line of sight according to the user's height and the real-time seat angle, calculate the target display position according to the target display distance and the real-time user line of sight, and determine the optimal display rectangular surface according to the real-time user line of sight and the target display position; An optimal three-dimensional coordinate system identification module is used to identify the optimal three-dimensional coordinate system of the optimal display rectangular surface, wherein the optimal coordinate origin of the optimal three-dimensional coordinate system is the target display site, the x-axis of the optimal three-dimensional coordinate system passes through the optimal coordinate origin and is parallel to the optimal transverse edge line of the optimal display rectangular surface, the y-axis of the optimal three-dimensional coordinate system passes through the optimal coordinate origin and is parallel to the optimal longitudinal edge line of the optimal display rectangular surface, and the z-axis of the optimal three-dimensional coordinate system passes through the optimal coordinate origin and is perpendicular to the optimal display rectangular surface; A current three-dimensional coordinate system identification module is used to identify a current three-dimensional coordinate system of a preset vehicle display screen, wherein the current coordinate origin of the current three-dimensional coordinate system is located at the current screen center of the vehicle display screen, the x-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current horizontal edge line of the vehicle display screen, the y-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current vertical edge line of the vehicle display screen, and the z-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is perpendicular to the screen of the vehicle display screen; The vehicle-mounted display screen angle control module is used to control the angle of the vehicle-mounted display screen according to the current three-dimensional coordinate system and the optimal three-dimensional coordinate system until the current three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system to obtain a target controlled display screen.

[0015] In order to solve the above problem, the present invention further provides an electronic device, the electronic device comprising: A memory storing at least one instruction; and a processor executing the instruction stored in the memory to implement the above-mentioned method for correcting the moving angle of the mobile rotating vehicle display screen.

[0016] In order to solve the above problems, the present invention also provides a computer-readable storage medium, in which at least one instruction is stored. The at least one instruction is executed by a processor in an electronic device to implement the above-mentioned method for correcting the moving angle of a mobile rotating vehicle display screen.

[0017] In order to solve the problems described in the background technology, the present invention first needs to determine the optimal display rectangular surface according to the user's height, seat number and target display distance, so as to provide a target direction for regulation for the current vehicle-mounted display screen. Specifically, after receiving the user's height, seat number and target display distance input by the user, it is necessary to identify the real-time seat angle according to the seat number. Since the real-time seat angle and the user's height play a decisive role in the real-time user's line of sight, the real-time user's line of sight can be calculated according to the user's height and the real-time seat angle. At this time, the target display position can be calculated according to the target display distance and the real-time user's line of sight, and then the real-time user line of sight and the target display position can be calculated according to the real-time user line of sight. Determine the optimal display rectangular surface. In order to provide a more refined control parameter for the current vehicle display screen, it is necessary to identify the optimal three-dimensional coordinate system of the optimal display rectangular surface. The optimal three-dimensional coordinate system includes the position and angle parameters of the optimal display rectangular surface. At this time, the current three-dimensional coordinate system of the vehicle display screen can be identified, and then the vehicle display screen is angle-controlled according to the current three-dimensional coordinate system and the optimal three-dimensional coordinate system until the current three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system, indicating that the vehicle display screen has been adjusted to the optimal display rectangular surface position, and the target controlled display screen is obtained, completing the mobile angle correction based on the mobile rotation of the vehicle display screen. Therefore, the present invention can improve the control efficiency and control accuracy of the vehicle display screen and enhance the user viewing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic flow chart of a method for correcting the moving angle of a mobile rotating vehicle-mounted display screen provided by an embodiment of the present invention; Figure 2 A schematic diagram of an optimal three-dimensional coordinate system for optimally displaying a rectangular surface provided by an embodiment of the present invention; Figure 3 A functional module diagram of a mobile angle correction system based on a mobile rotating vehicle-mounted display screen provided by an embodiment of the present invention; Figure 4 A schematic structural diagram of an electronic device for implementing the moving angle correction method based on a moving and rotating vehicle-mounted display screen provided in one embodiment of the present invention.

[0019] Description of reference numerals: 1. Electronic device; 10. Processor; 11. Memory; 12. Bus.

[0020] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0022] The embodiment of the present application provides a method for correcting the moving angle based on a mobile rotating vehicle display screen. The execution subject of the method for correcting the moving angle based on a mobile rotating vehicle display screen includes but is not limited to at least one of the electronic devices such as a server and a terminal that can be configured to execute the method provided by the embodiment of the present application. In other words, the method for correcting the moving angle based on a mobile rotating vehicle display screen can be executed by software or hardware installed on a terminal device or a server device, and the software can be a blockchain platform. The server includes but is not limited to: a single server, a server cluster, a cloud server or a cloud server cluster, etc.

[0023] Reference Figure 1 FIG. 1 is a flow chart of a method for correcting the moving angle of a mobile rotating vehicle-mounted display screen provided by an embodiment of the present invention. In this embodiment, the method for correcting the moving angle of a mobile rotating vehicle-mounted display screen includes: S1. Receive user height, seat number and target display distance input by the user, and identify the real-time seat angle according to the seat number, wherein the real-time seat angle includes: the real-time seat surface center position and the real-time seat back angle.

[0024] It can be explained that the target display distance refers to the distance between the user's viewpoint and the center of the screen of the vehicle-mounted display screen when the user is viewing the display screen, and the user's viewpoint can be the center of the user's eyebrows. The seat number refers to the number of the seat the user is currently sitting on, and the real-time seat angle refers to the position and angle of the seat the user is currently sitting on, including the real-time seat surface center point and the real-time seat back angle. The real-time seat surface center point refers to the real-time seat surface center position of the seat the user is sitting on, and the real-time seat back angle refers to the tilt angle of the seat back of the seat the user is sitting on.

[0025] In the embodiment of the present invention, the identifying the real-time seat angle according to the seat number includes: Identify the user seat according to the seat number, and identify the real-time control parameters of the user seat, wherein the real-time control parameters include seat height control parameters, seat slide control parameters, and seat back angle control parameters; Determine the real-time seat surface center position according to the seat surface height control parameter and the seat surface slide control parameter; The real-time seat back angle is determined according to the seat back angle control parameter.

[0026] Furthermore, the user seat refers to the seat that the user is currently sitting in. The seat surface height control parameter refers to the control height of the left center position of the user seat, the seat surface slide control parameter refers to the position control parameter of the user seat on the slide rail, the seat surface sliding control parameter controls the distance between the user and the vehicle center console or the front seat, and the seat back angle control parameter refers to the parameter for controlling the seat back angle of the user seat.

[0027] S2. Calculate the real-time user line of sight according to the user height and the real-time seat angle, calculate the target display position according to the target display distance and the real-time user line of sight, and determine the best display rectangular surface according to the real-time user line of sight and the target display position.

[0028] It is understandable that the real-time user line of sight refers to the optimal user riding line of sight under the user's height and real-time seat angle. The best sitting posture for a general user is to lean against the back of the chair and look forward at a certain angle (the comfortable angle of looking forward changes with the change of the backrest angle). Therefore, after determining the user's height and real-time seat angle, the user's line of sight will also be determined accordingly. The target display position refers to the center position of the screen of the vehicle display screen under the target display distance and the real-time user line of sight. The optimal display rectangular surface refers to the optimal display surface of the vehicle display screen when the center position of the screen is located at the target display position. Since the vehicle display screen is generally rectangular, the optimal display surface is the optimal display rectangular surface.

[0029] In the embodiment of the present invention, the calculating of the real-time user sight line according to the user height and the real-time seat angle includes: Querying the seat viewpoint distance in a preset height-seat viewpoint distance table according to the user's height; Determining a real-time seat surface viewpoint modulus length according to the seat surface viewpoint distance, wherein the real-time seat surface viewpoint modulus length is equal to the seat surface viewpoint distance; Determine the real-time seat surface viewpoint direction according to the real-time seat back angle; Taking the real-time seat surface center position as the seat surface viewpoint vector starting point, determining the real-time seat surface viewpoint vector according to the seat surface viewpoint vector starting point, the real-time seat surface viewpoint modulus and the real-time seat surface viewpoint direction; According to the real-time chair surface viewpoint vector, the best user sight line is searched in a pre-constructed chair surface viewpoint vector-sight line reference table, and the best user sight line is used as the real-time user sight line, wherein the real-time user sight line includes: a real-time sight line viewpoint and a real-time sight line direction.

[0030] Furthermore, the height-seat viewpoint distance table refers to a relationship table between the user's height and the seat viewpoint distance, and the seat viewpoint distance refers to the straight-line distance between the user's viewpoint and the real-time seat center. Generally, the higher the user's height, the greater the user's seat viewpoint distance. The real-time seat viewpoint modulus refers to the modulus of the real-time seat viewpoint vector, and the real-time seat viewpoint vector refers to the vector formed by connecting the real-time seat center and the user's viewpoint, and the vector direction is from the real-time seat center to the user's viewpoint. The real-time seat viewpoint direction refers to the direction from the real-time seat center to the user's viewpoint. Since the user is generally sitting on the user's seat, and the real-time seat center is the center of the seat, the user's viewpoint and the real-time seat center can be regarded as being on the same longitudinal axis section of the vehicle. The vehicle longitudinal axis section refers to the middle section of the vehicle in the longitudinal direction, and the vehicle longitudinal axis section may include: the midpoint of the vehicle center console, the middle point of the two front seats, the middle point of the two rear seats, the center point of the front windshield, and the like. The real-time seat viewpoint direction refers to the angle between the real-time seat back angle and the vertical line of the horizontal plane. For example, when the angle between the real-time seat back angle and the vertical line of the horizontal plane is 30 degrees, the real-time seat viewpoint direction is the 30-degree direction. The starting point of the seat viewpoint vector refers to the starting point of the real-time seat viewpoint vector. The seat viewpoint vector-line of sight reference table refers to the relationship table between the real-time seat viewpoint vector and the optimal user viewpoint, which can be set by professionals in the field of ergonomics. The optimal user line of sight refers to the line of sight that best suits the user under the real-time seat viewpoint vector. The real-time user line of sight can be regarded as a vector, the starting point of the vector is the user viewpoint, the direction of the vector is the user's line of sight direction, the real-time line of sight viewpoint refers to the user's real-time viewpoint, the real-time line of sight direction refers to the user's real-time line of sight direction, and the real-time line of sight viewpoint and real-time line of sight direction are determined within the longitudinal axis section of the vehicle.

[0031] In the embodiment of the present invention, the step of calculating the target display position according to the target display distance and the real-time user line of sight includes: A target display position is intercepted on the real-time user line of sight according to the target display distance and the real-time line of sight viewpoint, wherein the distance between the target display position and the real-time line of sight viewpoint is the target display distance.

[0032] In the embodiment of the present invention, determining the best display rectangular surface according to the real-time user line of sight and the target display position includes: Obtain a standard display rectangle, wherein the long side of the standard display rectangle is parallel to a preset horizontal plane, and the wide side of the rectangle is perpendicular to the horizontal plane; Identify the standard rectangle center of the standard display rectangle, translate the standard display rectangle according to the target display position and the standard rectangle center to obtain a dynamic translation rectangle, identify the dynamic translation center of the dynamic translation rectangle until the dynamic translation center coincides with the target display position to obtain a center coincidence display rectangle, The angle of the center overlap display rectangle is adjusted according to the real-time user line of sight to obtain a dynamic angle control rectangle; Identify the dynamic line-plane angle between the dynamic corner control rectangle and the real-time user's line of sight; Determining whether the dynamic line-plane angle is equal to a preset comfortable line-plane angle; If the dynamic line-plane angle is not equal to the comfortable line-plane angle, return to the above step of adjusting the angle of the center overlap display rectangle according to the real-time user line of sight; If the dynamic line-plane angle is equal to the comfortable line-plane angle, the optimal display rectangular surface is obtained.

[0033] Furthermore, the standard display rectangle refers to a virtual standard size rectangle whose center is at a preset position, the aspect ratio of the virtual standard size rectangle is equal to the aspect ratio of the vehicle display screen, and the long side of the virtual standard size rectangle is parallel to the horizontal plane, and the short side is perpendicular to the horizontal plane. The dynamic translation rectangle refers to a standard display rectangle in the process of translating the standard display rectangle from the center of the standard rectangle to the target display position. The dynamic translation center refers to the center point of the dynamic translation rectangle, and the dynamic angle control rectangle refers to a rectangle whose center is fixed as the target display position and whose center coincides with the display rectangle in the longitudinal axis section of the vehicle and is in an angle control state.

[0034] In detail, the dynamic line-plane angle refers to the line-plane angle between the dynamic angle control rectangle and the real-time user's line of sight. The comfortable line-plane angle can be set by professionals or users, and refers to the angle between the real-time user's line of sight and the screen of the vehicle display screen when the user is in the best viewing state. The best display rectangular surface refers to the virtualized rectangular screen at the best display angle under the real-time user's line of sight.

[0035] S3. Identify the optimal three-dimensional coordinate system for the optimal display rectangular surface, wherein the optimal coordinate origin of the optimal three-dimensional coordinate system is the target display site, the x-axis of the optimal three-dimensional coordinate system passes through the optimal coordinate origin and is parallel to the optimal horizontal edge line of the optimal display rectangular surface, the y-axis of the optimal three-dimensional coordinate system passes through the optimal coordinate origin and is parallel to the optimal longitudinal edge line of the optimal display rectangular surface, and the z-axis of the optimal three-dimensional coordinate system passes through the optimal coordinate origin and is perpendicular to the optimal display rectangular surface.

[0036] It can be understood that the optimal three-dimensional coordinate system refers to the three-dimensional coordinate system constructed according to the optimal display rectangular surface. Figure 2 The optimal horizontal edge line refers to the long side of the optimal display rectangular surface, and the optimal longitudinal edge line refers to the short side of the optimal display rectangular surface. The optimal coordinate origin refers to the origin of the optimal three-dimensional coordinate system.

[0037] In the embodiment of the present invention, the step of identifying the best three-dimensional coordinate system for the best display rectangular surface includes: Identify the best horizontal edge line, the best vertical edge line and the best screen vertical line of the best display rectangular surface; Taking the target display site as the optimal coordinate origin, respectively identifying the optimal horizontal positive direction, the optimal vertical positive direction and the optimal vertical positive direction of the optimal horizontal edge line, the optimal vertical edge line and the optimal screen vertical line; Determine the best x-axis positive direction of the best three-dimensional coordinate system according to the best transverse positive direction, determine the best y-axis positive direction of the best three-dimensional coordinate system according to the best longitudinal positive direction, and determine the best z-axis positive direction of the best three-dimensional coordinate system according to the best vertical positive direction; The optimal three-dimensional coordinate system is determined according to the optimal coordinate origin, the optimal positive direction of the x-axis, the optimal positive direction of the y-axis, and the optimal positive direction of the z-axis.

[0038] It can be understood that the optimal screen vertical line refers to a straight line passing through the center point of the optimal display rectangular surface and perpendicular to the optimal display rectangular surface. The optimal horizontal positive direction can be horizontal right direction, the optimal longitudinal positive direction can be vertical upward, and the optimal vertical positive direction can be a direction perpendicular to the optimal display rectangular surface and pointing to the user.

[0039] S4. Identify a current three-dimensional coordinate system of a preset vehicle display screen, wherein the current coordinate origin of the current three-dimensional coordinate system is located at the current screen center of the vehicle display screen, the x-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current horizontal edge line of the vehicle display screen, the y-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current vertical edge line of the vehicle display screen, and the z-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is perpendicular to the screen of the vehicle display screen.

[0040] It can be understood that the current three-dimensional coordinate system refers to the three-dimensional coordinate system constructed according to the current position angle of the vehicle display screen, the current coordinate origin refers to the origin of the current three-dimensional coordinate system, and the current screen center position refers to the screen center position of the vehicle display screen at the current position angle. The current horizontal edge line refers to the long side of the vehicle display screen at the current position angle, and the current vertical edge line refers to the wide side of the vehicle display screen at the current position angle.

[0041] In the embodiment of the present invention, the step of identifying the current three-dimensional coordinate system of the preset vehicle-mounted display screen includes: Identifying a current horizontal edge line, a current vertical edge line, and a current screen vertical line of the vehicle-mounted display screen; Taking the current screen center point as the current coordinate origin, respectively identifying the current horizontal positive direction, the current vertical positive direction and the current vertical positive direction of the current horizontal edge line, the current vertical edge line and the current screen vertical line; Determine the current positive x-axis direction of the current three-dimensional coordinate system according to the current positive horizontal direction, determine the current positive y-axis direction of the current three-dimensional coordinate system according to the current positive vertical direction, and determine the current positive z-axis direction of the current three-dimensional coordinate system according to the current positive vertical direction; The current three-dimensional coordinate system is determined according to the current coordinate origin, the current positive direction of the x-axis, the current positive direction of the y-axis, and the current positive direction of the z-axis.

[0042] It can be understood that the current screen vertical line refers to a straight line perpendicular to the vehicle display screen at the current position angle. The current horizontal positive direction can be the right direction of the current horizontal edge line (needs to be consistent with the left and right direction of the optimal horizontal positive direction), and the current longitudinal positive direction can be the vertical upward direction of the current longitudinal edge line (needs to be consistent with the up and down direction of the optimal longitudinal positive direction). The current vertical positive direction refers to the direction perpendicular to the vehicle display screen at the current position angle and pointing to the user (needs to be consistent with the front and back direction of the optimal vertical positive direction).

[0043] S5. Regulate the vehicle-mounted display screen according to the current three-dimensional coordinate system and the optimal three-dimensional coordinate system until the current three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system, thereby obtaining a target regulated display screen and completing the movement angle correction of the vehicle-mounted display screen based on movement and rotation.

[0044] It is understandable that the angle control refers to controlling the position and angle of the vehicle display screen at the current position angle. The target control display screen refers to the vehicle display screen after the movement angle correction is completed.

[0045] In an embodiment of the present invention, the angle control of the vehicle-mounted display screen is performed according to the current three-dimensional coordinate system and the optimal three-dimensional coordinate system until the current three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system to obtain a target controlled display screen, including: The vehicle-mounted display screen is moved to the target display position according to the current coordinate origin and the optimal coordinate origin in the current three-dimensional coordinate system to obtain a first displacement display screen, wherein the first screen center position of the first displacement display screen coincides with the target display position; Identify a first three-dimensional coordinate system of the first displacement display screen and a first three-dimensional coordinate origin of the first three-dimensional coordinate system, and identify an x-axis angle, a y-axis angle, and a z-axis angle between the first three-dimensional coordinate system and the optimal three-dimensional coordinate system, wherein the first three-dimensional coordinate origin coincides with a target display site; Identify the minimum axis angle among the x-axis angle, the y-axis angle, and the z-axis angle, and identify that the minimum axis angle corresponds to a first minimum angle axis in the first three-dimensional coordinate system and an optimal minimum angle rotation axis in the optimal three-dimensional coordinate system, wherein the minimum axis angle is the axis angle between the first minimum angle axis and the optimal minimum angle axis; According to the optimal minimum angle axis, the first minimum angle axis is angle-controlled and the origin of the first three-dimensional coordinate is kept fixed to obtain a dynamic first angle axis; Determining whether the dynamic first angle axis coincides with the optimal minimum angle axis; If the dynamic first angle axis does not coincide with the optimal minimum angle axis, return to the above step of adjusting the angle of the first minimum angle axis according to the optimal minimum angle axis and keeping the origin of the first three-dimensional coordinate fixed; If the dynamic first angle axis coincides with the optimal minimum angle axis, a second angle-shifting display screen is obtained; Identifying a second three-dimensional coordinate system of the second angle-shifted display screen and a second minimum angle axis of the second three-dimensional coordinate system, wherein the second minimum angle axis coincides with the optimal minimum angle axis; Performing a fixed-axis rotation on the second angular shift display screen according to the second minimum angle axis to obtain a dynamic second three-dimensional coordinate system; Determining whether the dynamic second three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system; If the dynamic second three-dimensional coordinate system does not coincide with the optimal three-dimensional coordinate system, returning to the above step of performing fixed-axis rotation on the second angular shift display screen according to the second minimum angle axis; If the dynamic second three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system, a target controlled display screen is obtained.

[0046] It can be understood that the first displacement display screen refers to the vehicle-mounted display screen that has completed the position movement. The first three-dimensional coordinate system refers to the three-dimensional coordinate system constructed according to the first displacement display screen. The construction method of the first three-dimensional coordinate system is consistent with the construction method of the optimal three-dimensional coordinate system and the current three-dimensional coordinate system, and will not be repeated here. The first three-dimensional coordinate origin refers to the coordinate origin of the first three-dimensional coordinate system. The x-axis angle, y-axis angle and z-axis angle refer to the positive x-axis angle, y-axis angle and z-axis angle of the first three-dimensional coordinate system and the optimal three-dimensional coordinate system, respectively. The minimum axis angle refers to the smallest axis angle among the x-axis angle, y-axis angle and z-axis angle. The first minimum angle axis refers to the coordinate axis corresponding to the minimum axis angle in the first three-dimensional coordinate system, and the optimal minimum angle rotation axis refers to the minimum axis angle corresponding to the coordinate axis in the optimal three-dimensional coordinate system. For example: when the minimum axis angle is the x-axis angle, the first minimum angle axis is the x-axis in the first three-dimensional coordinate system, and the optimal minimum angle axis is the x-axis in the optimal three-dimensional coordinate system.

[0047] It can be understood that the dynamic first angle axis refers to the first minimum angle axis of the first three-dimensional coordinate system when the first minimum angle axis coincides with the optimal minimum angle longitudinal axis. The second angular displacement display screen refers to the first displacement display screen that completes the regulation of the first minimum angle axis. The second three-dimensional coordinate system refers to the three-dimensional coordinate system constructed according to the second angular displacement display screen. The construction method of the second three-dimensional coordinate system is consistent with the construction method of the optimal three-dimensional coordinate system and the current three-dimensional coordinate system, and will not be repeated here. The second minimum angle axis refers to the first minimum angle axis after the angle regulation is completed. When the first minimum angle axis is the x-axis in the first three-dimensional coordinate system, the second minimum angle axis should also be the x-axis. The dynamic second three-dimensional coordinate system refers to a three-dimensional coordinate system constructed according to the second angular displacement display screen in a fixed-axis rotation state. The coincidence of the dynamic second three-dimensional coordinate system with the optimal three-dimensional coordinate system refers to a dynamic second three-dimensional coordinate system in which the coordinate origin, x-axis, y-axis and z-axis of the dynamic second three-dimensional coordinate system and the optimal three-dimensional coordinate system are completely coincident.

[0048] It should be understood that the process of fixing the angle of the first minimum angle axis according to the optimal minimum angle axis and keeping the first three-dimensional coordinate origin fixed is more complicated and difficult to control than the process of fixed-axis rotation. Therefore, it is necessary to first identify the minimum axis angle among the x-axis angle, y-axis angle and z-axis angle, so as to reduce the control complexity of the former and reduce the control error.

[0049] In an embodiment of the present invention, the method of moving the vehicle-mounted display screen to the target display position according to the current coordinate origin and the optimal coordinate origin in the current three-dimensional coordinate system to obtain a first displacement display screen includes: Determine a first displacement vector according to the current coordinate origin and the optimal coordinate origin, wherein the vector starting point of the first displacement vector is the current coordinate origin, and the vector end point of the first displacement vector is the optimal coordinate origin; The vehicle-mounted display screen is moved to the target display position according to the first displacement vector to obtain a first displacement display screen.

[0050] It can be understood that to move the vehicle display screen to the target display position, it is only necessary to move the screen center position of the vehicle display screen to the target display position, and the straight line between two points is the shortest. Therefore, the first displacement vector can be directly determined based on the current coordinate origin and the optimal coordinate origin, and then the vehicle display screen can be moved to the target display position according to the first displacement vector to obtain a first displacement display screen.

[0051] In order to solve the problems described in the background technology, the present invention first needs to determine the optimal display rectangular surface according to the user's height, seat number and target display distance, so as to provide a target direction for regulation for the current vehicle-mounted display screen. Specifically, after receiving the user's height, seat number and target display distance input by the user, it is necessary to identify the real-time seat angle according to the seat number. Since the real-time seat angle and the user's height play a decisive role in the real-time user's line of sight, the real-time user's line of sight can be calculated according to the user's height and the real-time seat angle. At this time, the target display position can be calculated according to the target display distance and the real-time user's line of sight, and then the real-time user line of sight and the target display position can be calculated according to the real-time user line of sight. Determine the optimal display rectangular surface. In order to provide a more refined control parameter for the current vehicle display screen, it is necessary to identify the optimal three-dimensional coordinate system of the optimal display rectangular surface. The optimal three-dimensional coordinate system includes the position and angle parameters of the optimal display rectangular surface. At this time, the current three-dimensional coordinate system of the vehicle display screen can be identified, and then the vehicle display screen is angle-controlled according to the current three-dimensional coordinate system and the optimal three-dimensional coordinate system until the current three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system, indicating that the vehicle display screen has been adjusted to the optimal display rectangular surface position, and the target controlled display screen is obtained, completing the mobile angle correction based on the mobile rotation of the vehicle display screen. Therefore, the present invention can improve the control efficiency and control accuracy of the vehicle display screen and enhance the user viewing experience.

[0052] like Figure 3 , is a functional module diagram of a mobile angle correction system based on a mobile rotating vehicle-mounted display screen provided by an embodiment of the present invention.

[0053] The mobile angle correction system 100 based on the mobile rotating vehicle display screen of the present invention can be installed in an electronic device. According to the functions to be implemented, the mobile angle correction system 100 based on the mobile rotating vehicle display screen can include an optimal display rectangular surface determination module 101, an optimal three-dimensional coordinate system identification module 102, a current three-dimensional coordinate system identification module 103 and a vehicle display screen angle control module 104. The module of the present invention can also be called a unit, which refers to a series of computer program segments that can be executed by an electronic device processor and can complete fixed functions, which are stored in the memory of the electronic device.

[0054] The optimal display rectangular surface determination module 101 is used to receive the user's height, seat number and target display distance input by the user, identify the real-time seat angle according to the seat number, wherein the real-time seat angle includes: the real-time seat surface center position and the real-time seat back angle; calculate the real-time user line of sight according to the user's height and the real-time seat angle, calculate the target display position according to the target display distance and the real-time user line of sight, and determine the optimal display rectangular surface according to the real-time user line of sight and the target display position; The optimal three-dimensional coordinate system identification module 102 is used to identify the optimal three-dimensional coordinate system of the optimal display rectangular surface, wherein the optimal coordinate origin of the optimal three-dimensional coordinate system is the target display site, the x-axis of the optimal three-dimensional coordinate system passes through the optimal coordinate origin and is parallel to the optimal transverse edge line of the optimal display rectangular surface, the y-axis of the optimal three-dimensional coordinate system passes through the optimal coordinate origin and is parallel to the optimal longitudinal edge line of the optimal display rectangular surface, and the z-axis of the optimal three-dimensional coordinate system passes through the optimal coordinate origin and is perpendicular to the optimal display rectangular surface; The current three-dimensional coordinate system identification module 103 is used to identify the current three-dimensional coordinate system of the preset vehicle display screen, wherein the current coordinate origin of the current three-dimensional coordinate system is located at the current screen center of the vehicle display screen, the x-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current horizontal edge line of the vehicle display screen, the y-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current vertical edge line of the vehicle display screen, and the z-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is perpendicular to the screen of the vehicle display screen; The vehicle-mounted display screen angle control module 104 is used to control the vehicle-mounted display screen angle according to the current three-dimensional coordinate system and the optimal three-dimensional coordinate system until the current three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system to obtain a target controlled display screen.

[0055] In detail, the modules in the mobile angle correction system 100 based on the mobile rotating vehicle display screen in the embodiment of the present invention are used in the same manner as described above. Figure 1The technical means are the same as the mobile angle correction method based on the mobile rotating vehicle display screen described in, and can produce the same technical effects, so they will not be repeated here.

[0056] like Figure 4 , is a schematic diagram of the structure of an electronic device for implementing a moving angle correction method based on a moving and rotating vehicle-mounted display screen provided by an embodiment of the present invention.

[0057] The electronic device 1 may include a processor 10, a memory 11 and a bus 12, and may also include a computer program stored in the memory 11 and executable on the processor 10, such as a moving angle correction method program based on a moving and rotating vehicle-mounted display screen.

[0058] Among them, the memory 11 includes at least one type of readable storage medium, and the readable storage medium includes flash memory, mobile hard disk, multimedia card, card-type memory (for example: SD or DX memory, etc.), magnetic memory, disk, optical disk, etc. In some embodiments, the memory 11 can be an internal storage unit of the electronic device 1, such as a mobile hard disk of the electronic device 1. In other embodiments, the memory 11 can also be an external storage device of the electronic device 1, such as a plug-in mobile hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (SecureDigital, SD) card, a flash card (Flash Card), etc. equipped on the electronic device 1. Further, the memory 11 also includes an internal storage unit of the electronic device 1 and an external storage device. The memory 11 can not only be used to store application software and various types of data installed in the electronic device 1, such as the code of the mobile angle correction method program based on the mobile rotating vehicle display screen, but also can be used to temporarily store data that has been output or is to be output.

[0059] The processor 10 may be composed of an integrated circuit in some embodiments, for example, a single packaged integrated circuit, or a plurality of packaged integrated circuits with the same or different functions, including one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and combinations of various control chips, etc. The processor 10 is the control core (Control Unit) of the electronic device, and uses various interfaces and lines to connect various components of the entire electronic device, and executes or executes programs or modules stored in the memory 11 (for example, a program for a method for correcting the moving angle of a mobile rotating vehicle display screen, etc.), and calls data stored in the memory 11, so as to execute various functions of the electronic device 1 and process data.

[0060] The bus 12 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus 12 may be divided into an address bus, a data bus, a control bus, etc. The bus 12 is configured to realize connection and communication between the memory 11 and at least one processor 10, etc.

[0061] Figure 4 Only an electronic device with components is shown, and those skilled in the art will understand that Figure 4 The structure shown does not constitute a limitation on the electronic device 1, and may include fewer or more components than shown in the figure, or combine certain components, or arrange the components differently.

[0062] For example, although not shown, the electronic device 1 may also include a power source (such as a battery) for supplying power to various components. Preferably, the power source may be logically connected to the at least one processor 10 through a power management device, so that the power management device can realize functions such as charging management, discharging management, and power consumption management. The power source may also include one or more DC or AC power sources, recharging devices, power failure detection circuits, power converters or inverters, power status indicators, and other arbitrary components. The electronic device 1 may also include a variety of sensors, Bluetooth modules, Wi-Fi modules, etc., which will not be repeated here.

[0063] Furthermore, the electronic device 1 may also include a network interface. Optionally, the network interface may include a wired interface and / or a wireless interface (such as a WI-FI interface, a Bluetooth interface, etc.), which is generally used to establish a communication connection between the electronic device 1 and other electronic devices.

[0064] Optionally, the electronic device 1 may further include a user interface, which may be a display, an input unit (such as a keyboard), or a standard wired interface or a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, and an OLED (Organic Light-Emitting Diode) touch device. The display may also be appropriately referred to as a display screen or a display unit, which is used to display information processed in the electronic device 1 and to display a visual user interface.

[0065] The program of the method for correcting the moving angle based on the moving rotating vehicle-mounted display screen stored in the memory 11 of the electronic device 1 is a combination of multiple instructions. When running in the processor 10, the following can be achieved: Receive the user's height, seat number and target display distance input by the user, and identify the real-time seat angle according to the seat number, wherein the real-time seat angle includes: the real-time seat surface center position and the real-time seat back angle; Calculate the real-time user sight line according to the user height and the real-time seat angle, calculate the target display position according to the target display distance and the real-time user sight line, and determine the best display rectangular surface according to the real-time user sight line and the target display position; Identify the best three-dimensional coordinate system of the best display rectangular surface, wherein the best coordinate origin of the best three-dimensional coordinate system is the target display site, the x-axis of the best three-dimensional coordinate system passes through the best coordinate origin and is parallel to the best transverse edge line of the best display rectangular surface, the y-axis of the best three-dimensional coordinate system passes through the best coordinate origin and is parallel to the best longitudinal edge line of the best display rectangular surface, and the z-axis of the best three-dimensional coordinate system passes through the best coordinate origin and is perpendicular to the best display rectangular surface; Identify a current three-dimensional coordinate system of a preset vehicle display screen, wherein the current coordinate origin of the current three-dimensional coordinate system is located at the current center position of the vehicle display screen, the x-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current horizontal edge line of the vehicle display screen, the y-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current vertical edge line of the vehicle display screen, and the z-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is perpendicular to the screen of the vehicle display screen; The vehicle-mounted display screen is angle-controlled according to the current three-dimensional coordinate system and the optimal three-dimensional coordinate system until the current three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system, thereby obtaining a target controlled display screen and completing movement angle correction of the vehicle-mounted display screen based on movement and rotation.

[0066] Specifically, the specific implementation method of the processor 10 for the above instructions can refer to Figures 1 to 4 The description of the relevant steps in the corresponding embodiments will not be repeated here.

[0067] Furthermore, if the module / unit integrated in the electronic device 1 is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. The computer-readable storage medium can be volatile or non-volatile. For example, the computer-readable medium can include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a mobile hard disk, a magnetic disk, an optical disk, a computer memory, and a read-only memory (ROM).

[0068] The present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor of an electronic device, the computer program can implement: Receive the user's height, seat number and target display distance input by the user, and identify the real-time seat angle according to the seat number, wherein the real-time seat angle includes: the real-time seat surface center position and the real-time seat back angle; Calculate the real-time user sight line according to the user height and the real-time seat angle, calculate the target display position according to the target display distance and the real-time user sight line, and determine the best display rectangular surface according to the real-time user sight line and the target display position; Identify the best three-dimensional coordinate system of the best display rectangular surface, wherein the best coordinate origin of the best three-dimensional coordinate system is the target display site, the x-axis of the best three-dimensional coordinate system passes through the best coordinate origin and is parallel to the best transverse edge line of the best display rectangular surface, the y-axis of the best three-dimensional coordinate system passes through the best coordinate origin and is parallel to the best longitudinal edge line of the best display rectangular surface, and the z-axis of the best three-dimensional coordinate system passes through the best coordinate origin and is perpendicular to the best display rectangular surface; Identify a current three-dimensional coordinate system of a preset vehicle display screen, wherein the current coordinate origin of the current three-dimensional coordinate system is located at the current center position of the vehicle display screen, the x-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current horizontal edge line of the vehicle display screen, the y-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current vertical edge line of the vehicle display screen, and the z-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is perpendicular to the screen of the vehicle display screen; The vehicle-mounted display screen is angle-controlled according to the current three-dimensional coordinate system and the optimal three-dimensional coordinate system until the current three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system, thereby obtaining a target controlled display screen and completing movement angle correction of the vehicle-mounted display screen based on movement and rotation.

[0069] In the several embodiments provided by the present invention, it should be understood that the disclosed devices, systems and methods can be implemented in other ways. For example, the system embodiments described above are only illustrative, and actual implementation may have other division methods.

[0070] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0071] In addition, each functional module in each embodiment of the present invention may be integrated into one processing unit, each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional modules.

[0072] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A method for correcting the moving angle of a mobile rotating vehicle display screen, characterized in that: The method comprises: Receive the user's height, seat number and target display distance input by the user, and identify the real-time seat angle according to the seat number, wherein the real-time seat angle includes: the real-time seat surface center position and the real-time seat back angle; Calculate the real-time user sight line according to the user height and the real-time seat angle, calculate the target display position according to the target display distance and the real-time user sight line, and determine the best display rectangular surface according to the real-time user sight line and the target display position; Identify the best three-dimensional coordinate system of the best display rectangular surface, wherein the best coordinate origin of the best three-dimensional coordinate system is the target display site, the x-axis of the best three-dimensional coordinate system passes through the best coordinate origin and is parallel to the best transverse edge line of the best display rectangular surface, the y-axis of the best three-dimensional coordinate system passes through the best coordinate origin and is parallel to the best longitudinal edge line of the best display rectangular surface, and the z-axis of the best three-dimensional coordinate system passes through the best coordinate origin and is perpendicular to the best display rectangular surface; Identify a current three-dimensional coordinate system of a preset vehicle display screen, wherein the current coordinate origin of the current three-dimensional coordinate system is located at the current center position of the vehicle display screen, the x-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current horizontal edge line of the vehicle display screen, the y-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current vertical edge line of the vehicle display screen, and the z-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is perpendicular to the screen of the vehicle display screen; The vehicle-mounted display screen is angle-controlled according to the current three-dimensional coordinate system and the optimal three-dimensional coordinate system until the current three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system, thereby obtaining a target controlled display screen and completing movement angle correction of the vehicle-mounted display screen based on movement and rotation.

2. The method for correcting the moving angle of a mobile rotating vehicle-mounted display screen according to claim 1, characterized in that: The step of identifying the real-time seat angle according to the seat number comprises: Identify the user seat according to the seat number, and identify the real-time control parameters of the user seat, wherein the real-time control parameters include seat height control parameters, seat slide control parameters, and seat back angle control parameters; Determine the real-time seat surface center position according to the seat surface height control parameter and the seat surface slide control parameter; The real-time seat back angle is determined according to the seat back angle control parameter.

3. The method for correcting the moving angle of a mobile rotating vehicle display screen according to claim 2, characterized in that: The calculating the real-time user sight line according to the user height and the real-time seat angle includes: Querying the seat viewpoint distance in a preset height-seat viewpoint distance table according to the user's height; Determining a real-time seat surface viewpoint modulus length according to the seat surface viewpoint distance, wherein the real-time seat surface viewpoint modulus length is equal to the seat surface viewpoint distance; Determine the real-time seat surface viewpoint direction according to the real-time seat back angle; Taking the real-time seat surface center position as the seat surface viewpoint vector starting point, determining the real-time seat surface viewpoint vector according to the seat surface viewpoint vector starting point, the real-time seat surface viewpoint modulus and the real-time seat surface viewpoint direction; According to the real-time chair surface viewpoint vector, the best user sight line is searched in a pre-constructed chair surface viewpoint vector-sight line reference table, and the best user sight line is used as the real-time user sight line, wherein the real-time user sight line includes: a real-time sight line viewpoint and a real-time sight line direction.

4. The method for correcting the moving angle of a mobile rotating vehicle-mounted display screen according to claim 3, characterized in that: The calculating the target display position according to the target display distance and the real-time user line of sight includes: A target display position is intercepted on the real-time user line of sight according to the target display distance and the real-time line of sight viewpoint, wherein the distance between the target display position and the real-time line of sight viewpoint is the target display distance.

5. The method for correcting the moving angle of a mobile rotating vehicle-mounted display screen according to claim 4, characterized in that: The determining of the optimal display rectangular surface according to the real-time user sight line and the target display position includes: Obtain a standard display rectangle, wherein the long side of the standard display rectangle is parallel to a preset horizontal plane, and the wide side of the rectangle is perpendicular to the horizontal plane; Identify the standard rectangle center of the standard display rectangle, translate the standard display rectangle according to the target display position and the standard rectangle center to obtain a dynamic translation rectangle, identify the dynamic translation center of the dynamic translation rectangle until the dynamic translation center coincides with the target display position to obtain a center coincidence display rectangle, The angle of the center overlap display rectangle is adjusted according to the real-time user line of sight to obtain a dynamic angle control rectangle; Identify the dynamic line-plane angle between the dynamic corner control rectangle and the real-time user's line of sight; Determining whether the dynamic line-plane angle is equal to a preset comfortable line-plane angle; If the dynamic line-plane angle is not equal to the comfortable line-plane angle, return to the above step of adjusting the angle of the center overlap display rectangle according to the real-time user line of sight; If the dynamic line-plane angle is equal to the comfortable line-plane angle, the optimal display rectangular surface is obtained.

6. The method for correcting the moving angle of a mobile rotating vehicle-mounted display screen according to claim 5, characterized in that: The identifying the best three-dimensional coordinate system for the best display rectangular surface includes: Identify the best horizontal edge line, the best vertical edge line and the best screen vertical line of the best display rectangular surface; Taking the target display site as the optimal coordinate origin, respectively identifying the optimal horizontal positive direction, the optimal vertical positive direction and the optimal vertical positive direction of the optimal horizontal edge line, the optimal vertical edge line and the optimal screen vertical line; Determine the best x-axis positive direction of the best three-dimensional coordinate system according to the best transverse positive direction, determine the best y-axis positive direction of the best three-dimensional coordinate system according to the best longitudinal positive direction, and determine the best z-axis positive direction of the best three-dimensional coordinate system according to the best vertical positive direction; The optimal three-dimensional coordinate system is determined according to the optimal coordinate origin, the optimal positive direction of the x-axis, the optimal positive direction of the y-axis, and the optimal positive direction of the z-axis.

7. The method for correcting the moving angle of a mobile rotating vehicle-mounted display screen according to claim 6, characterized in that: The identifying of the current three-dimensional coordinate system of the preset vehicle-mounted display screen includes: Identify the current horizontal edge line, the current vertical edge line and the current screen vertical line of the vehicle-mounted display screen; Taking the current screen center point as the current coordinate origin, respectively identifying the current horizontal positive direction, the current vertical positive direction and the current vertical positive direction of the current horizontal edge line, the current vertical edge line and the current screen vertical line; Determine the current positive x-axis direction of the current three-dimensional coordinate system according to the current positive horizontal direction, determine the current positive y-axis direction of the current three-dimensional coordinate system according to the current positive vertical direction, and determine the current positive z-axis direction of the current three-dimensional coordinate system according to the current positive vertical direction; The current three-dimensional coordinate system is determined according to the current coordinate origin, the current positive direction of the x-axis, the current positive direction of the y-axis, and the current positive direction of the z-axis.

8. The method for correcting the moving angle of a mobile rotating vehicle-mounted display screen according to claim 7, characterized in that: The step of adjusting the position angle of the vehicle-mounted display screen according to the current three-dimensional coordinate system and the optimal three-dimensional coordinate system until the current three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system to obtain a target adjusted display screen includes: The vehicle-mounted display screen is moved to the target display position according to the current coordinate origin and the optimal coordinate origin in the current three-dimensional coordinate system to obtain a first displacement display screen, wherein the first screen center position of the first displacement display screen coincides with the target display position; Identify a first three-dimensional coordinate system of the first displacement display screen and a first three-dimensional coordinate origin of the first three-dimensional coordinate system, and identify an x-axis angle, a y-axis angle, and a z-axis angle between the first three-dimensional coordinate system and the optimal three-dimensional coordinate system, wherein the first three-dimensional coordinate origin coincides with a target display site; Identify the minimum axis angle among the x-axis angle, the y-axis angle, and the z-axis angle, and identify that the minimum axis angle corresponds to a first minimum angle axis in the first three-dimensional coordinate system and an optimal minimum angle rotation axis in the optimal three-dimensional coordinate system, wherein the minimum axis angle is the axis angle between the first minimum angle axis and the optimal minimum angle axis; According to the optimal minimum angle axis, the first minimum angle axis is angle-controlled and the origin of the first three-dimensional coordinate is kept fixed to obtain a dynamic first angle axis; Determining whether the dynamic first angle axis coincides with the optimal minimum angle axis; If the dynamic first angle axis does not coincide with the optimal minimum angle axis, return to the above step of adjusting the angle of the first minimum angle axis according to the optimal minimum angle axis and keeping the origin of the first three-dimensional coordinate fixed; If the dynamic first angle axis coincides with the optimal minimum angle axis, a second angle-shifting display screen is obtained; Identifying a second three-dimensional coordinate system of the second angle-shifted display screen and a second minimum angle axis of the second three-dimensional coordinate system, wherein the second minimum angle axis coincides with the optimal minimum angle axis; Performing a fixed-axis rotation on the second angular shift display screen according to the second minimum angle axis to obtain a dynamic second three-dimensional coordinate system; Determining whether the dynamic second three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system; If the dynamic second three-dimensional coordinate system does not coincide with the optimal three-dimensional coordinate system, returning to the above step of performing fixed-axis rotation on the second angular shift display screen according to the second minimum angle axis; If the dynamic second three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system, a target controlled display screen is obtained.

9. The method for correcting the moving angle of a mobile rotating vehicle-mounted display screen according to claim 8, characterized in that: The step of moving the vehicle-mounted display screen to the target display position according to the current coordinate origin and the optimal coordinate origin in the current three-dimensional coordinate system to obtain a first displacement display screen includes: Determine a first displacement vector according to the current coordinate origin and the optimal coordinate origin, wherein the vector starting point of the first displacement vector is the current coordinate origin, and the vector end point of the first displacement vector is the optimal coordinate origin; The vehicle-mounted display screen is moved to the target display position according to the first displacement vector to obtain a first displacement display screen.

10. A mobile angle correction system based on a mobile rotating vehicle display screen, characterized in that: The system comprises: The module for determining the optimal display rectangular surface is used to receive the user's height, seat number and target display distance input by the user, identify the real-time seat angle according to the seat number, wherein the real-time seat angle includes: the real-time seat surface center position and the real-time seat back angle; calculate the real-time user line of sight according to the user's height and the real-time seat angle, calculate the target display position according to the target display distance and the real-time user line of sight, and determine the optimal display rectangular surface according to the real-time user line of sight and the target display position; An optimal three-dimensional coordinate system identification module is used to identify the optimal three-dimensional coordinate system of the optimal display rectangular surface, wherein the optimal coordinate origin of the optimal three-dimensional coordinate system is the target display site, the x-axis of the optimal three-dimensional coordinate system passes through the optimal coordinate origin and is parallel to the optimal transverse edge line of the optimal display rectangular surface, the y-axis of the optimal three-dimensional coordinate system passes through the optimal coordinate origin and is parallel to the optimal longitudinal edge line of the optimal display rectangular surface, and the z-axis of the optimal three-dimensional coordinate system passes through the optimal coordinate origin and is perpendicular to the optimal display rectangular surface; A current three-dimensional coordinate system identification module is used to identify a current three-dimensional coordinate system of a preset vehicle display screen, wherein the current coordinate origin of the current three-dimensional coordinate system is located at the current screen center of the vehicle display screen, the x-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current horizontal edge line of the vehicle display screen, the y-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is parallel to the current vertical edge line of the vehicle display screen, and the z-axis of the current three-dimensional coordinate system passes through the current coordinate origin and is perpendicular to the screen of the vehicle display screen; The vehicle-mounted display screen angle control module is used to control the angle of the vehicle-mounted display screen according to the current three-dimensional coordinate system and the optimal three-dimensional coordinate system until the current three-dimensional coordinate system coincides with the optimal three-dimensional coordinate system to obtain a target controlled display screen.

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