CN113296672A - Interface display method and system - Google Patents
Interface display method and system Download PDFInfo
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- CN113296672A CN113296672A CN202110552722.8A CN202110552722A CN113296672A CN 113296672 A CN113296672 A CN 113296672A CN 202110552722 A CN202110552722 A CN 202110552722A CN 113296672 A CN113296672 A CN 113296672A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/451—Execution arrangements for user interfaces
Abstract
The embodiment of the application provides an interface display method and system, wherein the method comprises the following steps: acquiring a rotation angle of a steering wheel; determining the coordinate position of each pixel point in the display interface based on the rotation angle of the steering wheel; drawing a display interface based on the coordinate position of each pixel point so that the display interface is displayed in the horizontal direction; and presenting the display interface on a display screen of the steering wheel. The rotation angle of the steering wheel is obtained in real time, the coordinate position of each pixel point is determined based on the rotation angle of the steering wheel, a display interface is drawn according to the coordinate position of each pixel point, the display interface is finally presented on the steering wheel display screen, the finally displayed interface can always keep the horizontal direction display effect when the steering wheel rotates any angle, a driver can conveniently watch screen pictures, the driver can conveniently operate keys and/or a touch screen of the steering wheel display screen, safe driving is facilitated, and user experience is improved.
Description
Technical Field
The application relates to the field of intelligent cabins of automobiles, in particular to an interface display method and system.
Background
Along with the development of the intelligent car cabin technology, the functions in the car cabin are more and more abundant and intelligent, the display screen is also larger and larger, and the number of the display screen is more and more. Wherein, the display screen is added on the steering wheel of the automobile, which becomes a novel function.
At present, in some technologies, a display area of a steering wheel display screen is rectangular, when a steering wheel rotates, a display picture on the steering wheel display screen rotates along with the rotation of the steering wheel, a driver cannot normally watch the display picture of the steering wheel display screen, and the operation of keys and/or a touch screen of the steering wheel display screen is inconvenient.
Disclosure of Invention
The embodiment of the application provides an interface display method and system, which can adjust the interface display angle of a steering wheel display screen based on any rotation angle of a steering wheel, so that a picture displayed on the steering wheel display screen always keeps in a horizontal direction in the steering wheel rotation process, a driver can conveniently watch and/or operate the steering wheel display screen, safe driving is facilitated, and user experience is improved.
In a first aspect, the present application provides an interface display method, which may be performed by an interface display system. The interface display system as an embedded function system can be deployed in a cockpit area controller of a vehicle, can also be deployed in other controllers, such as a vehicle body controller, an automatic driving area controller, a power system controller and the like, and can also be deployed on one controller independently.
Specifically, the method comprises the following steps: acquiring a rotation angle of a steering wheel; determining the coordinate position of each pixel point in a display interface based on the rotation angle of the steering wheel; drawing the display interface based on the coordinate position of each pixel point so as to enable the display interface to be displayed in the horizontal direction; and presenting the display interface on a display screen of the steering wheel.
Based on the above scheme, through the turned angle who obtains the steering wheel in real time, and based on the turned angle of steering wheel, confirm the coordinate position of every pixel, draw the display interface according to the coordinate position of every pixel again, finally present the display interface on the steering wheel display screen, make the interface that finally demonstrates can keep the effect that the horizontal direction shows all the time when the steering wheel rotates arbitrary angle, be convenient for the driver to watch the screen picture, also be convenient for the driver to the button and/or touch screen operation of steering wheel display screen, be convenient for safe driving, improve user experience.
Optionally, the determining the coordinate position of each pixel point in the display interface based on the rotation angle of the steering wheel includes: acquiring an interface picture, wherein the interface picture is displayed in the horizontal direction when the steering wheel is not rotated, the interface picture comprises a plurality of pixel points, and the pixel points are in one-to-one correspondence with the pixel points in the display interface; and calculating the coordinate position of each pixel point in the display interface based on the rotation angle of the steering wheel and the coordinate position of each pixel point in the interface picture.
Optionally, with a central point of the display interface as a coordinate origin, a coordinate position (x, y) of a first pixel point in the interface picture and a coordinate position (x ', y') of a second pixel point in the display interface picture satisfy: x '═ xcos θ -ysin θ, and y' ═ xsin θ + ycos θ; wherein θ is a rotation angle of the steering wheel; the first pixel point is any one pixel point in the interface picture, and the second pixel point is a pixel point corresponding to the first pixel point in the display interface.
It should be understood that the coordinate position of the central point of the display interface is unchanged in the display interface when the steering wheel rotates at any angle.
The second pixel point is a pixel point corresponding to the first pixel point in the display interface, and it can be understood that the pixel value of each pixel point in the display picture is unchanged, but the coordinate position of each pixel point of the display image displayed on the steering wheel display screen is changed.
Optionally, the display screen of the steering wheel is circular.
Optionally, the interface picture is square, the side length of the interface picture is greater than or equal to the diameter of the display screen, and the center of the interface picture coincides with the center of the display screen.
Optionally, the obtaining the angle of the steering wheel includes: acquiring the rotation angle of the steering wheel from a sensor; the rotation angle is acquired in real time based on the rotation angle of the steering wheel acquired by the sensor.
Optionally, before the determining the coordinate position of each pixel point in the display interface based on the rotation angle of the steering wheel, the method further includes: determining that the length of time that the steering wheel is kept at the rotation angle is greater than or equal to a preset threshold.
In a second aspect, an interface display system is provided, which includes a module or a unit for implementing the interface display method described in any one of the first aspect and the first aspect. It should be understood that the respective modules or units may implement the respective functions by executing the computer program.
In a third aspect, an interface display apparatus is provided, which includes a processor configured to execute the interface display method described in any one of the first aspect and the first aspect.
The apparatus may also include a memory to store instructions and data. The memory is coupled to the processor, and the processor, when executing the instructions stored in the memory, may implement the method described in the first aspect above. The apparatus may also include a communication interface for the apparatus to communicate with other devices, which may be, for example, a transceiver, circuit, bus, module, or other type of communication interface.
Alternatively, the interface display system described in the second aspect may be deployed in the interface display apparatus described in the third aspect, and the corresponding functions may be implemented by executing a computer program.
In a fourth aspect, there is provided a vehicle comprising: a steering wheel configured with a display screen; the sensor is used for acquiring the rotation angle of the steering wheel in real time; an interface display apparatus system configured to perform the interface display method described in any one of the first aspect and the first aspect.
In a fifth aspect, there is provided a computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to carry out the method of any one of the first aspect and the first aspect.
In a sixth aspect, there is provided a computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method of any of the first and second aspects.
It should be understood that the second aspect to the sixth aspect of the present application correspond to the technical solutions of the first aspect of the present application, and the beneficial effects achieved by the aspects and the corresponding possible implementations are similar and will not be described again.
Drawings
FIG. 1 is an effect diagram of an interface display of a steering wheel display screen in the prior art;
FIG. 2 is a schematic block diagram of an interface display system provided by an embodiment of the present application;
FIG. 3 is a schematic flow chart diagram of an interface display method provided by an embodiment of the present application;
fig. 4 is a schematic diagram of coordinate positions of pixel points in a display interface, which is suitable for the interface display method provided in the embodiment of the present application;
fig. 5 is an effect diagram of interface display of a steering wheel display screen suitable for the interface display method provided in the embodiment of the present application;
FIG. 6 is a schematic block diagram of an interface display apparatus provided by an embodiment of the present application;
FIG. 7 is a schematic block diagram of an automobile with an interface display system deployed provided by an embodiment of the application.
Detailed Description
The technical solution in the present application will be described below with reference to the accompanying drawings.
Along with the development of the intelligent car cabin technology, the functions in the car cabin are more and more abundant and intelligent, the display screen is also larger and larger, and the number of the display screen is more and more. Wherein, the display screen is added on the steering wheel of the automobile, which becomes a novel function.
At present, in some technologies, a display area of a steering wheel display screen is rectangular, when a steering wheel rotates, a display picture on the steering wheel display screen rotates along with the rotation of the steering wheel, a driver cannot normally watch the display picture of the steering wheel display screen, and the operation is inconvenient. Fig. 1 shows a schematic view of an interface display effect of a steering wheel display screen in some prior art. Fig. 1 a) is an effect diagram that the display interface of the display screen of the steering wheel is displayed in a horizontal direction when the steering wheel is not rotated by any angle, and fig. 1 b) is an effect diagram that the display interface of the display screen of the steering wheel is displayed in a non-horizontal direction when the steering wheel is rotated by 90 degrees counterclockwise. In b) of fig. 1, the steering wheel has rotated 90 degrees counterclockwise, and the picture in the display interface of the steering wheel display screen has also rotated 90 degrees counterclockwise along with the steering wheel, resulting in that the picture in the display interface of the steering wheel display screen is in a non-horizontal display state, in which case, the driver cannot normally view the display picture of the steering wheel display screen, and the operation of the keys and/or touch screen of the steering wheel display screen is inconvenient. Therefore, the application provides an interface display method and system, which enable the picture displayed on the steering wheel display screen to always keep the display state in the horizontal direction in the process of steering wheel rotation by continuously adjusting the interface display angle of the steering wheel display screen based on the rotation angle of the steering wheel.
In order to better understand the interface display method proposed by the present solution, the interface display system proposed by the present application is briefly described below with reference to fig. 2.
Illustratively, FIG. 2 shows an interface display system 200 suitable for use with the present application. The interface display system 200 may include, but is not limited to: the system comprises a data acquisition module 201, a data processing module 202, an interface drawing module 203 and an interface display module 204. The data acquisition module 201 can acquire the rotation angle of the steering wheel, the interface picture and/or the pixel point of the interface picture; the data processing module 202 may determine the coordinate position of each pixel point in the display interface based on the rotation angle of the steering wheel; the interface drawing module 203 can draw a display interface based on the coordinate position of each pixel point, so that the display interface is displayed in the horizontal direction; the interface display module 204 may enable presentation of a display interface on a display screen of a steering wheel.
It should be understood that, in the embodiment of the present application, the interface display system 200 is schematically divided into modules, the modules are different modules that are divided according to different functions, and the interface display system may further implement other functions according to different requirements of a user. The division of the modules is only one logic function division, and other division modes can be provided in actual implementation. Therefore, the interface display system may have other functional modules, which is not limited in this application. In addition, functional modules in the embodiments of the present application may be integrated into one processor, may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. This is not a limitation of the present application.
It should also be understood that the interface display system may be deployed as an embedded functional system in a cockpit area controller of a vehicle, or in other controllers, such as a body controller, an autopilot area controller, a power system controller, etc., or may be deployed separately on a single controller. This is not a limitation of the present application.
For convenience of understanding, the interface display method provided by the present application is described in detail below with reference to fig. 3, taking the interface display system 200 in fig. 2 as an execution subject.
Fig. 3 is a schematic flowchart of an interface display method provided in an embodiment of the present application. As shown in fig. 3, the method 300 may include steps 310 through 340. The various steps in method 300 are described in detail below.
In step 310, the rotation angle of the steering wheel is acquired.
During the running process of the vehicle, a driver adjusts the running direction by adjusting the rotating angle of the steering wheel. When a driver rotates the steering wheel, the steering wheel can generate a certain rotation angle.
For example, the data acquisition module 201 may acquire a rotation angle of the steering wheel.
In one possible implementation, the data acquisition module 201 may acquire the rotation angle of the steering wheel from a sensor. The sensor CAN be an angle sensor, and the angle sensor CAN be connected to a Controller Area Network (CAN) of a vehicle, and CAN realize real-time data sharing with other communication units through the CAN.
It should be appreciated that in this implementation, the angle of rotation is based on a real-time acquisition of the angle of rotation of the steering wheel by the sensor. The sensor may be a gyro sensor or a steering wheel angle sensor, as long as the sensor can acquire the rotation angle of the steering wheel, and the present application does not limit the sensor.
It should also be understood that when the sensor acquires the rotation angle of the steering wheel, the rotation direction of the steering wheel may also be acquired, that is, the sensor may know whether the steering wheel has rotated clockwise by a certain angle or has rotated counterclockwise by a certain angle.
In step 320, the coordinate position of each pixel point in the display interface is determined based on the rotation angle of the steering wheel.
For example, the data processing module 202 may determine the coordinate position of each pixel point in the display interface based on the angle of rotation of the steering wheel. Determining the coordinate position of each pixel point in the display interface can be understood as corresponding each pixel point in the display picture to a coordinate point on the display screen of the steering wheel.
It should be understood that the location of the point on the steering wheel display screen may be fixed, in other words, the point on the steering wheel display screen has a fixed coordinate position. However, each pixel point in the picture displayed in the display screen can correspond to different coordinate points on the display screen of the steering wheel, and different display effects can be presented by adjusting the corresponding relation between each pixel point and the coordinate point.
After the steering wheel is rotated, the corresponding relation between the pixel point of the picture to be displayed and the coordinate point on the display screen of the steering wheel is determined again, so that the displayed picture can be displayed in the horizontal direction.
In a possible implementation manner, the data obtaining module 201 may obtain an interface picture, where the interface picture may be a picture displayed in a horizontal direction when the steering wheel is not rotated, and the interface picture may include a plurality of pixel points, and the plurality of pixel points correspond to the plurality of pixel points in the display interface one to one; the data processing module 202 calculates the coordinate position of each pixel point in the display interface based on the rotation angle of the steering wheel and the coordinate position of each pixel point in the interface picture.
It should be understood that the data acquisition module 201 may acquire interface pictures from the intelligent cabin system. For example, the smart cockpit system may be a virtual machine monitor (Hypervisor) system employing an Android (Android) system and a QNX-based system. It should also be understood that the android system and the QNX system-based Hypervisor system may run on the same processor or chip. For example, the Hypervisor system based on the QNX system may be run on a system-on-chip (SOC), and then the android system may be run on the SOC. The Hypervisor system based on the QNX system may be responsible for functional applications including but not limited to digital instrument terminals, etc., and the android system is responsible for related functional applications including but not limited to navigation, multimedia, etc. In the embodiment of the application, some display data can be sent to the interface display system through a digital-speech interpolation (DSI) display interface of the SOC by an image deserializing chip. For example, interface pictures such as car logos, time clocks, compasses, custom pictures and the like can be transmitted to the Hypervisor system based on the QNX system through the android system, and then the data are transmitted to the interface display system through the Hypervisor system based on the QNX system. In other words, the interface display system can acquire the interface picture and/or the pixel point of the interface picture by the android system.
Optionally, taking the central point of the display interface as the origin of coordinates, the coordinate position (x, y) of the first pixel point in the interface picture and the coordinate position (x ', y') of the second pixel point in the display interface picture satisfy:
x 'is xcos θ -ysin θ, and y' is xsin θ + ycos θ.
Where θ is the rotation angle of the steering wheel.
It should be understood that θ can be any value. When θ is greater than 360 ° or less than 0 °, the conversion to processing in the range of 0 ° to 360 ° can also be performed using the principle of trigonometric function. When the rotating angle of the steering wheel is greater than 360 degrees, when the coordinate position of the second pixel point is calculated, the angle theta used for calculating the coordinate position of the second pixel point can be obtained by adding 360 degrees to the actual rotating angle of the steering wheel.
Fig. 4 shows the coordinate position (x, y) of the first pixel point in the interface picture and the coordinate position (x ', y') of the second pixel point in the display interface, and the rotation angle θ of the steering wheel, where the central point of the display interface is the origin of coordinates.
It can be understood that based on the conversion relationship between angle and radian, the following can be satisfied: theta is more than or equal to 0 and less than or equal to 2 pi.
In other words, for any rotation angle of the steering wheel, the coordinate position of each pixel point in the interface picture in the display interface can be determined.
It should be understood that the coordinate position of the central point of the display interface is unchanged in the display interface when the steering wheel rotates at any angle.
Based on the above transformation of the coordinate relationship between the first pixel and the second pixel, a person skilled in the art can also make other possible mathematical transformations to obtain other relational expressions of the first pixel and the second pixel. These possible mathematical transformations are all intended to fall within the scope of protection of the present application.
It should be noted that the first pixel point is any one pixel point in the interface picture, and the second pixel point is a pixel point corresponding to the first pixel point in the display interface. And the second pixel point is the pixel point corresponding to the first pixel point in the display interface. Here, the second pixel point corresponds to the first pixel point, and it can be understood that the coordinate position of the second pixel point is determined by the coordinate position of the first pixel point and the rotation angle of the steering wheel, and the pixel value of the second pixel point is the same as the pixel value of the first pixel point. That is to say, the pixel value of the first pixel point in the interface picture is taken as the pixel value of the second pixel point, and the coordinate position of the second pixel point in the display interface is determined according to the rotation angle of the steering wheel, so that the second pixel point in the display interface can be obtained.
Therefore, after the steering wheel rotates by any angle, the coordinate position of each pixel point in the display interface can be determined, so that the finally displayed interface can always keep the effect of horizontal display when the steering wheel rotates by any angle.
For example, the data processing module 202 may calculate the coordinate position (x ', y') of the second pixel point according to the formula x ═ xcos θ -ysin θ and the formula y ═ xsin θ + ycos θ based on the rotation angle θ of the steering wheel and the coordinate position (x, y) of the first pixel point.
In step 330, a display interface is drawn based on the coordinate position of each pixel point, so that the display interface is displayed in a horizontal direction.
It can be understood that after the coordinate position of each pixel point is calculated, a display picture can be drawn according to the coordinate position.
It should be understood that the coordinate position of each pixel point is calculated to enable the display interface to be displayed in the horizontal direction, and therefore, the display interface drawn according to the coordinate position of each pixel point can achieve the effect of displaying in the horizontal direction.
For example, the interface drawing module 203 may draw the display interface based on the coordinate position of each pixel point, so that the display interface is displayed in a horizontal direction.
In step 340, a display interface is presented on a display screen of the steering wheel.
For example, the interface display module 204 may display the display interface of the steering wheel after the steering wheel is turned on the display screen of the steering wheel.
It should be understood that after the steering wheel rotates by any angle, each pixel value of an image in a display picture presented on the display screen of the steering wheel is not changed, and only each pixel point is changed corresponding to a point on the display screen of the steering wheel, that is, a display coordinate of each pixel point on the display screen of the steering wheel is changed.
Based on the method, the rotation angle of the steering wheel is obtained in real time, the coordinate position of each pixel point is determined based on the rotation angle of the steering wheel, the display interface is drawn according to the coordinate position of each pixel point, and the display interface is finally displayed on the display screen of the steering wheel, so that the finally displayed interface can always keep the horizontal display effect when the steering wheel rotates at any angle, a driver can conveniently watch screen pictures, and the driver can conveniently operate keys and/or a touch screen of the display screen of the steering wheel, thereby being convenient for the driver to watch and/or operate, being convenient for safe driving and improving user experience.
Fig. 5 is a diagram illustrating an effect of interface display of a steering wheel display screen obtained by using the interface display method provided by the embodiment of the present application.
Optionally, the display of the steering wheel is circular.
It should be understood that the display of the steering wheel may be designed to be circular in order to give the driver a better visual effect.
The display of the steering wheel shown in fig. 5 is circular. Fig. 5 a) is a schematic view showing the display effect that the display interface of the display screen of the steering wheel is in the horizontal direction when the steering wheel does not rotate by any angle, and fig. 5 b) is a schematic view showing the display effect that the display interface of the display screen of the steering wheel is in the horizontal direction when the steering wheel rotates counterclockwise by any angle as shown in the figure.
Under the condition that the display screen of the steering wheel is circular, the interface picture for drawing the display interface can be square, and the side length of the interface picture is larger than or equal to the diameter of the display screen, so that the display interface falls into the boundary range of the interface picture. Therefore, a complete display interface can be obtained when the steering wheel rotates at any angle.
Optionally, the center of the interface picture coincides with the center of the display screen. Therefore, the interface picture displayed on the display interface can be exactly positioned in the center of the display screen, and the visual effect is optimal.
In one example, the side length of the interface picture is equal to the diameter of the display screen, and the center of the interface picture coincides with the center of the display screen. That is, the display screen is an inscribed circle of the interface picture. The interface picture is, for example, 400 × 400 pixels, and an inscribed circle is made in the interface picture to obtain an actual display portion of the display interface.
It should be appreciated that the display of the steering wheel is circular and the interface picture is square is only one possible design. The embodiments of the present application should not be construed as limiting in any way. For example, the display screen of the steering wheel may also be square, the interface picture may also be square, and the side length of the display screen of the steering wheel is less than or equal to the side length of the interface picture, so that the display screen of the steering wheel falls within the frame range of the interface picture. For another example, the display screen of the steering wheel is square, the interface picture is circular, and the length of the diagonal line of the display screen of the steering wheel is smaller than or equal to the diameter of the interface picture, so that the display screen of the steering wheel falls within the boundary range of the interface picture. And so on, not to mention one by one here. It can be understood that, when the display screen is circular, the center point is the center of the circle; when the display screen is square, the central point is the intersection point of the diagonals. Essentially, the central point of the display screen may be a point where the coordinate position of the pixel point does not change when the steering wheel rotates at any angle, or when the display screen rotates at any angle.
Optionally, before determining the coordinate position of each pixel point in the display interface based on the rotation angle of the steering wheel, the method further includes: and determining that the time length of the steering wheel kept at the rotating angle is greater than or equal to a first preset threshold.
It can be understood that the sensor can collect the rotation angle of the steering wheel in real time, and when the rotation angle of the steering wheel keeps the same numerical value and does not change within a certain time, the coordinate position of each pixel point in the display interface can be determined based on the rotation angle.
It should be understood that the first predetermined threshold is a predetermined threshold of the time duration. For example, the first preset threshold may be 100 milliseconds (ms), 500ms, 1 second(s), 2s, and so on. The specific value of the first preset threshold is not limited in any way.
Optionally, before determining the coordinate position of each pixel point in the display interface based on the rotation angle of the steering wheel, the method further includes: and determining that the rotating speed of the steering wheel is greater than or equal to a second preset threshold.
It can be understood that when the rotating speed of the steering wheel is high, it indicates that the driver is adjusting the steering wheel quickly, and the display interface may not be drawn. When the rotating speed of the steering wheel is reduced, a display interface corresponding to the detected rotating angle can be drawn according to the detected rotating angle.
It will be appreciated that the second predetermined threshold is a predetermined threshold for the rotational speed. The specific value of the second preset threshold is not limited in the present application.
Based on the design, whether the display interface needs to be drawn or not is determined according to the time length of the steering wheel kept at a certain rotation angle or the rotation speed of the steering wheel, so that the calculation pressure caused by drawing the display interface according to different rotation angles ceaselessly in the continuous rotation process of the steering wheel can be avoided.
Of course, during the continuous rotation of the steering wheel, the display interface can be drawn according to the rotation angle in real time, and the method can also be implemented. The embodiments of the present application do not limit this.
Fig. 6 is a schematic block diagram of an interface display device provided in an embodiment of the present application. The device can be used for realizing the functions of the interface display system in the method. The apparatus may be a system-on-a-chip. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.
As shown in fig. 6, the interface display apparatus 600 may include at least one processor 610 for implementing the functions of the interface display system in the method provided by the embodiment of the present application. Illustratively, the processor 610 may be configured to obtain a rotation angle of the steering wheel; determining the coordinate position of each pixel point in a display interface based on the rotation angle of the steering wheel; drawing the display interface based on the coordinate position of each pixel point so as to enable the display interface to be displayed in the horizontal direction; and presenting the display interface on a display screen of the steering wheel. For details, reference is made to the detailed description in the method example, which is not repeated herein.
The interface display apparatus 600 may also include at least one memory 620 for storing program instructions and/or data. The memory 620 is coupled to the processor 610. The coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, and may be an electrical, mechanical or other form for information interaction between the devices, units or modules. The processor 610 may operate in conjunction with the memory 620. The processor 610 may execute program instructions stored in the memory 620. At least one of the at least one memory may be included in the processor.
The interface display apparatus 600 may further include a communication interface 630 for communicating with other devices through a transmission medium, so that the apparatus used in the interface display apparatus 600 can communicate with other devices or systems. Illustratively, the other system may be a Hypervisor system based on a QNX system. The communication interface 630 may be, for example, a transceiver, an interface, a bus, a circuit, or a device capable of performing a transceiving function. The processor 610 may utilize the communication interface 630 to send and receive data and/or information and to implement the methods performed by the interface display system described in the corresponding embodiment of fig. 3.
The specific connection medium between the processor 610, the memory 620 and the communication interface 630 is not limited in the embodiments of the present application. In fig. 6, the processor 610, the memory 620, and the communication interface 630 are connected by a bus 640. The bus 640 is represented by a thick line in fig. 6, and the connection between other components is merely illustrative and not intended to be limiting. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 6, but this is not intended to represent only one bus or type of bus.
The present application further provides a vehicle, comprising: a steering wheel configured with a display screen; the sensor is used for acquiring the rotation angle of the steering wheel in real time; an interface display system for performing the method of the embodiment shown in fig. 3.
It should be understood that the vehicle may be an automobile, a ship, an airplane, etc., and the present application is not limited thereto.
Fig. 7 is a schematic block diagram of an automobile with an interface display system deployed according to an embodiment of the application.
As shown in fig. 7, the interface display system as an embedded function system may be deployed in a cockpit area controller of a vehicle, may also be deployed in other controllers, for example, a body controller, an automatic driving area controller, a power system controller, and the like, and may also be deployed on a controller alone. The cabin host system in the figure may be part of a cabin domain controller of a vehicle, and may include a transceiver integrated circuit (Serializer, a transceiver integrated circuit capable of performing serial data and parallel data interconversion) and an SOC on which a Hypervisor system based on a QNX system may operate, and then operate an android system on the SOC. The sensor can acquire the rotation angle of the steering wheel in real time and transmit data to the cabin host system; each module and/or system and/or unit in the cabin host system can process data in different roles and finally present a display interface in a horizontal state on a display screen of the steering wheel.
It should be understood that FIG. 7 is merely exemplary and should not constitute any limitation on the vehicles provided herein that may be deployed with an interface display system.
The present application further provides a computer program product, the computer program product comprising: a computer program (also referred to as code, or instructions), which when executed, causes a computer to perform the method of the embodiment shown in fig. 3.
The present application also provides a computer-readable storage medium having stored thereon a computer program (also referred to as code, or instructions). Which when executed, causes a computer to perform the method of the embodiment shown in fig. 3.
It should be understood that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
It will also be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
The terms used in this specification: "unit," "module," and the like may be used to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution.
Those of ordinary skill in the art will appreciate that the various illustrative logical blocks and steps (step) described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application. In the several embodiments provided in the present application, it should be understood that the disclosed apparatus, device and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In the above embodiments, the functions of the functional units may be fully or partially implemented by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions (programs). The procedures or functions described in accordance with the embodiments of the present application are generated in whole or in part when the computer program instructions (programs) are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Versatile Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. An interface display method, comprising:
acquiring a rotation angle of a steering wheel;
determining the coordinate position of each pixel point in a display interface based on the rotation angle of the steering wheel;
drawing the display interface based on the coordinate position of each pixel point so as to enable the display interface to be displayed in the horizontal direction;
and presenting the display interface on a display screen of the steering wheel.
2. The method of claim 1, wherein determining the coordinate location of each pixel point in the display interface based on the angle of rotation of the steering wheel comprises:
acquiring an interface picture, wherein the interface picture is displayed in the horizontal direction when the steering wheel is not rotated, the interface picture comprises a plurality of pixel points, and the pixel points are in one-to-one correspondence with the pixel points in the display interface;
and calculating the coordinate position of each pixel point in the display interface based on the rotation angle of the steering wheel and the coordinate position of each pixel point in the interface picture.
3. The method according to claim 2, wherein the coordinate position (x, y) of the first pixel point in the interface picture and the coordinate position (x ', y') of the second pixel point in the display interface picture satisfy, with the central point of the display interface as the origin of coordinates:
x '═ xcos θ -ysin θ, and y' ═ xsin θ + ycos θ;
wherein θ is a rotation angle of the steering wheel; the first pixel point is any one pixel point in the interface picture, and the second pixel point is a pixel point corresponding to the first pixel point in the display interface.
4. A method as claimed in claims 1 to 3, characterised in that the display of the steering wheel is circular.
5. The method of claim 4, wherein the interface picture is square, the edge length of the interface picture is greater than or equal to the diameter of the display screen, and the center of the interface picture coincides with the center of the display screen.
6. The method of claim 1, wherein the obtaining the angle of the steering wheel comprises:
acquiring the rotation angle of the steering wheel from a sensor; the rotation angle is acquired in real time based on the rotation angle of the steering wheel acquired by the sensor.
7. The method of claim 6, wherein prior to said determining a coordinate location of each pixel point in a display interface based on a rotation angle of the steering wheel, the method further comprises:
determining that the length of time that the steering wheel is kept at the rotation angle is greater than or equal to a preset threshold.
8. An interface display system for performing the method of any one of claims 1 to 7.
9. A vehicle, comprising:
a steering wheel configured with a display screen;
the sensor is used for acquiring the rotation angle of the steering wheel in real time;
an interface display system for performing the method of any one of claims 1 to 7.
10. A computer program product, comprising a computer program which, when executed, causes a computer to perform the method of any one of claims 1 to 7.
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| CN202110552722.8A CN113296672A (en) | 2021-05-20 | 2021-05-20 | Interface display method and system |
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| CN202110552722.8A CN113296672A (en) | 2021-05-20 | 2021-05-20 | Interface display method and system |
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