Control system and method of display device, intelligent equipment and storage medium

Abstract

The invention relates to the technical field of computers, particularly provides a control system and method of a display device, intelligent equipment and a storage medium, and aims to solve the problems of delay, color distortion and image quality reduction caused by a scheme of realizing screen transmission through network series connection. In order to achieve the purpose, the control system of the display device comprises a first system-on-chip, a second system-on-chip and a functional chip, the functional chip is configured to perform data interaction with the first system chip and the second system chip, so that display signals from the first system chip and / or the second system chip are displayed on the display device. According to the invention, data transmission between the system chip and the display device is realized by introducing the functional chip, so that the problems of time delay increase, color distortion, image quality reduction and the like caused by encoding and decoding processes when screen transmission is realized through network series connection in the existing scheme are effectively solved, and smoother and high-quality experience is brought to users.

Description

Technical Field

[0001] The present application relates to the field of computer technology, and specifically provides a control system, method, intelligent device and storage medium for a display device. Background Art

[0002] With the technological innovation of the automotive industry and the continuous upgrading of user needs, in-vehicle entertainment and control systems are becoming increasingly complex and diverse. In traditional automotive design, each screen is connected to an independent host. This one-to-one connection method often forces users to upgrade or replace the entire host system when the computing power of a host is insufficient to cope with the growing computing needs. This not only brings high costs, but also may cause many inconveniences to users due to the complicated installation and debugging process.

[0003] In order to solve this problem, a solution has emerged in actual applications to connect the in-vehicle entertainment system host and the control system host in series. The core idea of ​​this solution is to use a high-performance host as the encoding source of the video stream and transmit the encoded video stream to other screens and hosts in the car through the network. However, this solution of screen transmission through network series connection causes delay problems due to the encoding and decoding process, which not only affects the user experience, but also causes color distortion and image quality degradation.

[0004] Accordingly, the art requires a new control solution for a display device to solve the above problems. Summary of the invention

[0005] In order to overcome the above-mentioned defects, the present application is proposed to provide a control system, method, intelligent device and storage medium for a display device that solves or at least partially solves the technical problems of increased delay, color distortion and image quality degradation that occur in the encoding and decoding process of a network series screen transmission solution.

[0006] In a first aspect, the present application provides a control system for a display device, the control system comprising: a first system chip, a second system chip and a functional chip; the functional chip is configured to interact with the first system chip and the second system chip to perform data exchange so that a display signal from the first system chip and / or the second system chip is displayed on the display device.

[0007] In a technical solution of the control system of the above-mentioned display device, the function chip includes a display signal input interface, a display signal switching output interface and a plurality of synchronization signal sending interfaces; the first system chip includes a display signal output interface and a synchronization signal input interface; the second system chip includes a display signal input interface and a synchronization signal input interface; the display device includes a display signal input interface; the synchronization signal sending interface of the function chip is respectively connected to the synchronization signal input interfaces of the first system chip and the second system chip, and the synchronization signal sending interface is configured to send a first synchronization signal and a second synchronization signal to the first system chip and the second system chip respectively; the display signal input interface of the function chip is connected to the display signal output interface of the first system chip, and the display signal input interface is configured to receive the display signal of the first system chip; the display signal switching output interface of the function chip is connected to the display signal input interface of the second system chip, and the display signal switching output interface is configured to send the display signal of the first system chip to the second system chip; the display signal output interface of the second system chip is connected to the display signal input interface of the display device, and the display signal output interface is configured to send the display signal of the first system chip and the display signal locally generated by the second system chip to the display device.

[0008] In a technical solution of the control system of the above-mentioned display device, the functional chip includes a display signal adapter chip and a synchronization signal sending chip; the synchronization signal sending chip includes a plurality of the synchronization signal sending interfaces, and the synchronization signal sending interfaces are respectively connected to the synchronization signal input interfaces of the first system chip and the second system chip; the display signal adapter chip includes the display signal input interface and the display signal adapter output interface, the display signal input interface is connected to the display signal output interface of the first system chip, and the display signal adapter output interface is connected to the display signal input interface of the second system chip.

[0009] In a technical solution of the control system of the above-mentioned display device, the display device includes a control instruction output interface; the second system chip also includes a control instruction input interface, the control instruction input interface of the second system chip is connected to the control instruction output interface of the display device, and the control instruction input interface of the second system chip is configured to receive touch screen control instructions from the display device.

[0010] In a technical solution of the control system of the above-mentioned display device, the function chip includes a display signal input interface, a display signal output interface and multiple synchronization signal output interfaces and synchronization signal input interfaces; the first system chip includes a display signal output interface and a synchronization signal input interface; the second system chip includes a display signal output interface and a synchronization signal input interface; the display device includes a display signal input interface and a synchronization signal output interface; the synchronization signal input interface of the function chip is connected to the synchronization signal output interface of the display device, and the synchronization signal input interface is configured to receive a third synchronization signal sent by the display device; the synchronization signal output interfaces of the function chip are respectively connected to the first system The function chip is connected to the synchronization signal input interface of the first system chip and the second system chip, and the synchronization signal output interface is configured to send the third synchronization signal to the first system chip and the second system chip respectively; the display signal input interface of the function chip is connected to the display signal output interface of the first system chip and the second system chip respectively, and the display signal input interface is configured to receive the display signal sent by the first system chip and the second system chip; the display signal output interface of the function chip is connected to the display signal input interface of the display device, and the display signal output interface is configured to send the display signal sent by the first system chip and the second system chip to the display device.

[0011] In a technical solution of the control system of the above-mentioned display device, the function chip also includes a control instruction input interface; the display device includes a control instruction output interface; the first system chip also includes a control instruction output interface and a control instruction input interface, the control instruction input interface of the first system chip is connected to the control instruction output interface of the display device, and the control instruction input interface of the first system chip is configured to receive touch screen control instructions from the display device; the control instruction output interface of the first system chip is connected to the control instruction input interface of the function chip, and the control instruction input interface of the function chip is configured to receive touch screen control instructions sent from the first system chip; or, the second system chip also includes a control instruction output interface and a control instruction input interface, the control instruction input interface of the second system chip is connected to the control instruction output interface of the display device, and the control instruction input interface of the second system chip is configured to receive touch screen control instructions from the display device; the control instruction output interface of the second system chip is connected to the control instruction input interface of the function chip, and the control instruction input interface of the function chip is configured to receive touch screen control instructions sent from the second system chip.

[0012] In a technical solution of the control system of the above-mentioned display device, the first system chip is configured to run an entertainment operating system; the second system chip is configured to run a central control operating system; or, the first system chip is configured to run a central control operating system; the second system chip is configured to run an entertainment operating system.

[0013] In a technical solution of the control system of the above-mentioned display device, the entertainment operating system is built based on the Android operating system; and the central control operating system is built based on the QNX operating system and the Android virtual machine.

[0014] In a second aspect, the present application provides a method for controlling a display device, the method comprising: a function chip sends a first synchronization signal and a second synchronization signal to a first system chip and a second system chip respectively; the first system chip sends a display signal to the function chip based on the first synchronization signal; the function chip forwards the display signal from the first system chip to the second system chip; the second system chip receives the display signal of the first system chip based on the second synchronization signal, and merges the display signal of the first system chip and the display signal locally generated by the second system chip to obtain a first signal to be displayed; the second system chip sends the first signal to be displayed to a display device, so that the first signal to be displayed is displayed on the display device.

[0015] In a technical solution of the control method of the above-mentioned display device, the method also includes: the second system chip obtains a touch screen control instruction of the display device; the second system chip adjusts and processes the display signals from the first system chip and the second system chip based on the touch screen control instruction to obtain a second signal to be displayed; the functional chip sends the second signal to be displayed to the display device, so that the display device displays a display interface of the second signal to be displayed.

[0016] In a third aspect, the present application provides a method for controlling a display device, the method comprising: a functional chip acquiring a third synchronization signal from the display device; the functional chip sending the third synchronization signal to a first system chip and a second system chip respectively; the first system chip and the second system chip sending a display signal to the functional chip based on the third synchronization signal respectively; the functional chip merges the display signals from the first system chip and the second system chip to obtain a third signal to be displayed; the functional chip sends the third signal to be displayed to the display device, so that the display device displays a display interface of the third signal to be displayed.

[0017] In a technical solution of the control method of the above-mentioned display device, the method also includes: the functional chip obtains a touch screen control instruction from the first system chip or the second system chip; the functional chip adjusts and processes the display signals from the first system chip and the second system chip based on the touch screen control instruction to obtain a fourth signal to be displayed; the functional chip sends the fourth signal to be displayed to the display device, so that the display device displays a display interface of the fourth signal to be displayed.

[0018] In one technical solution of the control method of the above-mentioned display device, an entertainment operating system is run on the first system chip, and a central control operating system is run on the second system chip; or, a central control operating system is run on the first system chip, and an entertainment operating system is run on the second system chip.

[0019] In a technical solution of the control method of the above-mentioned display device, the entertainment operating system is constructed based on the Android operating system; and the central control operating system is constructed based on the QNX operating system and the Android virtual machine.

[0020] In a fourth aspect, a smart device is provided, comprising a control system for a display device as described in any one of the technical solutions for the control system of the above-mentioned display device, and a display device.

[0021] In a fifth aspect, a computer-readable storage medium is provided, which stores a plurality of program codes, wherein the program codes are suitable for being loaded and run by a processor to execute the display device control method described in any one of the technical solutions of the above-mentioned display device control method.

[0022] Solution 1. A control system for a display device, characterized in that the control system comprises: a first system chip, a second system chip and a function chip;

[0023] The function chip is configured to perform data exchange with the first system chip and the second system chip, so that a display signal from the first system chip and / or the second system chip is displayed on the display device.

[0024] Solution 2. The control system of the display device according to claim 1, characterized in that the functional chip comprises a display signal input interface, a display signal switching output interface and a plurality of synchronization signal sending interfaces;

[0025] The first system chip includes a display signal output interface and a synchronization signal input interface;

[0026] The second system chip includes a display signal input interface and a synchronization signal input interface;

[0027] The display device comprises a display signal input interface;

[0028] The synchronization signal sending interface of the function chip is connected to the synchronization signal input interfaces of the first system chip and the second system chip respectively, and the synchronization signal sending interface is configured to send a first synchronization signal and a second synchronization signal to the first system chip and the second system chip respectively;

[0029] The display signal input interface of the function chip is connected to the display signal output interface of the first system chip, and the display signal input interface is configured to receive a display signal of the first system chip;

[0030] The display signal transfer output interface of the functional chip is connected to the display signal input interface of the second system chip, and the display signal transfer output interface is configured to send the display signal of the first system chip to the second system chip;

[0031] The display signal output interface of the second system chip is connected to the display signal input interface of the display device, and the display signal output interface is configured to send the display signal of the first system chip and the display signal locally generated by the second system chip to the display device.

[0032] Solution 3. The control system of the display device according to claim 2, characterized in that the functional chip includes a display signal switching chip and a synchronization signal sending chip;

[0033] The synchronization signal sending chip comprises a plurality of synchronization signal sending interfaces, and the synchronization signal sending interfaces are respectively connected to the synchronization signal input interfaces of the first system chip and the second system chip;

[0034] The display signal switching chip includes the display signal input interface and the display signal switching output interface. The display signal input interface is connected to the display signal output interface of the first system chip, and the display signal switching output interface is connected to the display signal input interface of the second system chip.

[0035] Solution 4. The control system of the display device according to claim 2, characterized in that the display device comprises a control instruction output interface;

[0036] The second system chip also includes a control instruction input interface, which is connected to the control instruction output interface of the display device, and the control instruction input interface of the second system chip is configured to receive a touch screen control instruction from the display device.

[0037] Solution 5. The control system of the display device according to claim 1, characterized in that the function chip comprises a display signal input interface, a display signal output interface and a plurality of synchronization signal output interfaces and synchronization signal input interfaces;

[0038] The first system chip includes a display signal output interface and a synchronization signal input interface;

[0039] The second system chip includes a display signal output interface and a synchronization signal input interface;

[0040] The display device comprises a display signal input interface and a synchronization signal output interface;

[0041] The synchronization signal input interface of the function chip is connected to the synchronization signal output interface of the display device, and the synchronization signal input interface is configured to receive a third synchronization signal sent by the display device;

[0042] The synchronization signal output interface of the function chip is connected to the synchronization signal input interfaces of the first system chip and the second system chip respectively, and the synchronization signal output interface is configured to send the third synchronization signal to the first system chip and the second system chip respectively;

[0043] The display signal input interface of the function chip is connected to the display signal output interfaces of the first system chip and the second system chip respectively, and the display signal input interface is configured to receive display signals sent by the first system chip and the second system chip;

[0044] The display signal output interface of the function chip is connected to the display signal input interface of the display device, and the display signal output interface is configured to send the display signals sent by the first system chip and the second system chip to the display device.

[0045] Solution 6. The control system of the display device according to claim 4, characterized in that the function chip further comprises a control instruction input interface; the display device comprises a control instruction output interface;

[0046] The first system chip further includes a control instruction output interface and a control instruction input interface, the control instruction input interface of the first system chip is connected to the control instruction output interface of the display device, and the control instruction input interface of the first system chip is configured to receive a touch screen control instruction from the display device;

[0047] The control instruction output interface of the first system chip is connected to the control instruction input interface of the function chip, and the control instruction input interface of the function chip is configured to receive the touch screen control instruction sent from the first system chip; or,

[0048] The second system chip further includes a control instruction output interface and a control instruction input interface, the control instruction input interface of the second system chip is connected to the control instruction output interface of the display device, and the control instruction input interface of the second system chip is configured to receive a touch screen control instruction from the display device;

[0049] The control instruction output interface of the second system chip is connected to the control instruction input interface of the function chip, and the control instruction input interface of the function chip is configured to receive the touch screen control instruction sent from the second system chip.

[0050] Solution 7. The control system of the display device according to claim 1, characterized in that the first system chip is configured to run an entertainment operating system; the second system chip is configured to run a central control operating system; or,

[0051] The first system chip is configured to run a central control operating system; the second system chip is configured to run an entertainment operating system.

[0052] Solution 8. The control system of the display device according to claim 7 is characterized in that the entertainment operating system is built based on the Android operating system; the central control operating system is built based on the QNX operating system and the Android virtual machine.

[0053] Solution 9. A method for controlling a display device, characterized in that the method comprises:

[0054] The function chip sends a first synchronization signal and a second synchronization signal to the first system chip and the second system chip respectively;

[0055] The first system chip sends a display signal to the function chip based on the first synchronization signal;

[0056] The function chip forwards the display signal from the first system chip to the second system chip;

[0057] The second system chip receives the display signal of the first system chip based on the second synchronization signal, and combines the display signal of the first system chip and the display signal generated locally by the second system chip to obtain a first signal to be displayed;

[0058] The second system chip sends the first signal to be displayed to a display device, so that the first signal to be displayed is displayed on the display device.

[0059] Solution 10. The control method of the display device according to claim 9, characterized in that the method further comprises:

[0060] The second system chip obtains a touch screen control instruction of the display device;

[0061] The second system chip adjusts and processes the display signals from the first system chip and the second system chip based on the touch screen control instruction to obtain a second signal to be displayed;

[0062] The function chip sends the second signal to be displayed to the display device, so that the display device displays a display interface of the second signal to be displayed.

[0063] Solution 11. A method for controlling a display device, characterized in that the method comprises:

[0064] The function chip obtains a third synchronization signal from the display device;

[0065] The function chip sends the third synchronization signal to the first system chip and the second system chip respectively;

[0066] The first system chip and the second system chip respectively send display signals to the function chip based on the third synchronization signal;

[0067] The function chip combines the display signals from the first system chip and the second system chip to obtain a third signal to be displayed;

[0068] The function chip sends the third signal to be displayed to a display device, so that the display device displays a display interface of the third signal to be displayed.

[0069] Solution 12. The control method of the display device according to claim 11, characterized in that the method further comprises:

[0070] The function chip obtains a touch screen control instruction from the first system chip or the second system chip;

[0071] The function chip adjusts and processes the display signals from the first system chip and the second system chip based on the touch screen control instruction to obtain a fourth signal to be displayed;

[0072] The function chip sends the fourth signal to be displayed to the display device, so that the display device displays a display interface of the fourth signal to be displayed.

[0073] Solution 13. The control method of a display device according to any one of claims 9 to 12, characterized in that an entertainment operating system is run on the first system chip, and a central control operating system is run on the second system chip; or,

[0074] A central control operating system is run on the first system chip, and an entertainment operating system is run on the second system chip.

[0075] Solution 14. The control method of the display device according to claim 13 is characterized in that the entertainment operating system is constructed based on the Android operating system; and the central control operating system is constructed based on the QNX operating system and the Android virtual machine.

[0076] Solution 15. A smart device, characterized in that the smart device includes a control system of a display device as described in any one of claims 1 to 8, and a display device.

[0077] Solution 16. A computer-readable storage medium storing a plurality of program codes, wherein the program codes are suitable for being loaded and run by a processor to execute the control method of the display device according to any one of claims 9 to 14.

[0078] The above one or more technical solutions of the present application have at least one or more of the following beneficial effects:

[0079] The present application discloses a control system for a display device, specifically comprising: a first system chip, a second system chip and a functional chip; the functional chip is configured to perform data exchange with the first system chip and the second system chip, so that the display signal from the first system chip and / or the second system chip is displayed on the display device. The present application introduces a functional chip to realize data transmission between the system chip and the display device, effectively solving the problems of increased delay, color distortion and image quality degradation caused by the encoding and decoding process when the screen is transmitted through a network series connection in the existing solution, bringing users a smoother and higher-quality visual experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] The disclosure of the present application will become more easily understood with reference to the accompanying drawings. It is easy for those skilled in the art to understand that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present application. In addition, similar numbers in the drawings are used to represent similar components, among which:

[0081] Figure 1 is a structural schematic diagram of the background technology according to an embodiment of the present application;

[0082] Figure 2 is a schematic diagram of a main structural block diagram of a control system of a display device according to an embodiment of the present application;

[0083] Figure 3 is a schematic diagram of a main structural block diagram of a control system of a display device according to another embodiment of the present application;

[0084] Figure 4is a flowchart of main steps of a method for controlling a display device according to an embodiment of the present application;

[0085] Figure 5 is a flow chart of main steps of a method for controlling a display device according to another embodiment of the present application;

[0086] Figure 6 It is a schematic diagram of the main structural block diagram of an intelligent device according to an embodiment of the present application.

[0087] List of reference numerals:

[0088] 10: display device; 20: control system of the display device. DETAILED DESCRIPTION

[0089] Some embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application and are not intended to limit the protection scope of the present application.

[0090] In the description of the present application, "module" and "processor" may include hardware, software or a combination of the two. A module may include hardware circuits, various suitable sensors, communication ports, memory, and may also include software parts, such as program code, or a combination of software and hardware. The processor may be a central processing unit, a microprocessor, an image processor, a digital signal processor or any other suitable processor. The processor has data and / or signal processing functions. The processor may be implemented in software, hardware or a combination of the two. Non-temporary computer-readable storage media include any suitable medium that can store program code, such as a disk, a hard disk, an optical disk, a flash memory, a read-only memory, a random access memory, etc. The term "A and / or B" means all possible combinations of A and B, such as only A, only B or A and B. The term "at least one A or B" or "at least one of A and B" has a similar meaning to "A and / or B" and may include only A, only B or A and B. The singular terms "one" and "the" may also include plural forms.

[0091] Smart devices may include driving devices, smart vehicles, robots, aircraft and other devices. In order to make the purpose, technical solutions and advantages of this application more clear, the following is a detailed description of this application in conjunction with the accompanying drawings and embodiments, taking vehicles as examples of smart devices. It should be understood by those skilled in the art that the specific embodiments described herein are only used to explain this application, and are not used to limit the solution described in this application to use vehicles as smart devices.

[0092] With the technological innovation of the automotive industry and the continuous upgrading of user needs, in-vehicle entertainment and control systems are becoming increasingly complex and diverse. In traditional automotive design, each screen is connected to an independent host. This one-to-one connection method often forces users to upgrade or replace the entire host system when the computing power of a host is insufficient to cope with the growing computing needs. This not only brings high costs, but also may cause many inconveniences to users due to the complicated installation and debugging process.

[0093] In order to solve this problem, a solution has emerged in actual applications to connect the host of the in-vehicle entertainment system and the host of the control system in series. Figure 1 The core idea of ​​this solution is to use a high-performance host, such as the host of the entertainment system, as the encoding source of the video stream, and transmit the encoded video stream to other screens and hosts in the car through the network. However, this solution of screen transmission through network tandem causes latency problems due to the encoding and decoding process, which not only affects the user experience, but also causes color distortion and image quality degradation.

[0094] To this end, the present application provides a control system for a display device, specifically comprising: a first system chip, a second system chip and a functional chip; the functional chip is configured to perform data interaction with the first system chip and the second system chip, so that the display signal from the first system chip and / or the second system chip is displayed on the display device. The present application introduces a functional chip to realize data transmission between the system chip and the display device, effectively solving the problems of increased delay, color distortion and image quality degradation caused by the encoding and decoding process when the screen is transmitted through network series connection in the existing solution, bringing users a smoother and higher-quality visual experience.

[0095] The control system of the display device of the present application is further described below.

[0096] The control system of the display device in the embodiment of the present application includes: a first system chip, a second system chip and a functional chip; the functional chip is configured to interact with the first system chip and the second system chip to perform data exchange so that the display signal from the first system chip and / or the second system chip is displayed on the display device.

[0097] Specifically, the first system chip and the second system chip may be two chips configured to process different data. For example, the first system chip is configured to mainly process display-related data, and the second system chip is configured to mainly process control-related data. The functional chip may be a chip that has the function of exchanging data with the first system chip and the second system chip. By introducing functional chips to realize data transmission between the system chip and the display device, the problems of increased delay, color distortion, and image quality degradation caused by the encoding and decoding process when the screen is transmitted through network series connection in the existing solution are effectively solved, bringing users a smoother and higher-quality visual experience.

[0098] See attached Figure 2 , Figure 2 FIG. 1 is a schematic diagram of the main structure block diagram of a control system of a display device according to an embodiment of the present application. Figure 2 As shown, this embodiment provides a series structure solution for the control system of the display device.

[0099] In one embodiment, the function chip includes a display signal input interface, a display signal switching output interface and a plurality of synchronization signal sending interfaces; the first system chip includes a display signal output interface and a synchronization signal input interface; the second system chip includes a display signal input interface and a synchronization signal input interface; the display device includes a display signal input interface; the synchronization signal sending interface of the function chip is respectively connected to the synchronization signal input interfaces of the first system chip and the second system chip, and the synchronization signal sending interface is configured to send a first synchronization signal and a second synchronization signal to the first system chip and the second system chip respectively; the display signal input interface of the function chip is connected to the display signal output interface of the first system chip, and the display signal input interface is configured to receive the display signal of the first system chip; the display signal switching output interface of the function chip is connected to the display signal input interface of the second system chip, and the display signal switching output interface is configured to send the display signal of the first system chip to the second system chip; the display signal output interface of the second system chip is connected to the display signal input interface of the display device, and the display signal output interface is configured to send the display signal of the first system chip and the display signal generated locally by the second system chip to the display device.

[0100] Specifically, the display signal output interface of the first system chip is a conventional display signal output interface, such as a DisplayPort interface; the display signal input interface of the second system chip is a conventional display signal input interface, such as a MIPI / CSI interface.

[0101] The functional chip includes a display signal input interface, a display signal switching output interface, and a plurality of synchronization signal transmission interfaces. The display signal input interface is configured to be suitable for receiving a display signal format sent by a first system chip, for example, receiving a display signal output by a DisplayPort interface of the first system chip. The display signal switching output interface is configured to convert the received display signal format into a display signal format suitable for receiving by a second system chip, and send the format to the second system chip, for example, convert the received display signal format into a display signal that can be received by a MIPI / CSI interface of the second system chip through the display signal switching output interface, and send the format to the second system chip.

[0102] The synchronization signal sending interface of the functional chip is configured to send the first synchronization signal and the second synchronization signal to the first system chip and the second system chip respectively; if the first system chip runs an entertainment operating system and the second system chip runs a central control operating system, the first synchronization signal may be a vertical synchronization signal (VSYNC) and the second synchronization signal may be a synchronization signal (SYNC); conversely, if the first system chip runs a central control operating system and the second system chip runs an entertainment operating system, the first synchronization signal may be a synchronization signal (SYNC) and the second synchronization signal may be a vertical synchronization signal (VSYNC).

[0103] The function chip sends the first synchronization signal to the first system chip because when the function chip and the first system chip perform data exchange, for the first system chip, the function chip simulates a display screen. The standard behavior of the display screen is to generate a synchronization signal. The synchronization signal is a signal sent by the display screen after completing the scanning of a frame of the picture each time. It tells the first system chip the current scanning status of the screen to ensure that the first system chip knows the scanning progress of the screen. The function chip sends the first synchronization signal to simulate the behavior of the display screen, so that the first system chip can synchronize the output of data according to the first synchronization signal.

[0104] The function chip sends the second synchronization signal to the second system chip because when the function chip and the second system chip perform data exchange, for the second system chip, the function chip simulates a camera (CAMERA), and the second synchronization signal is similar to the scanning line signal of the camera, which indicates that the camera is scanning images and collecting data. When the second system chip receives the second synchronization signal sent by the function chip, it regards it as an input signal from a standard camera, and then the second system chip synchronously receives data from the function chip according to the second synchronization signal.

[0105] By simulating the signal behavior of the display and camera, the functional chip can make the system chips on both sides think that they are communicating with the real display and camera. In addition, the two synchronization signals are sent at the same time, and there is no delay on the part of the functional chip, which ensures the accuracy of data synchronization.

[0106] It is understandable that a chip having the display signal input function, the display signal switching output function and the synchronization signal sending function can be used as a functional chip, or multiple chips having a single function can be used as functional chips.

[0107] In one embodiment, the functional chip includes a display signal adapter chip and a synchronization signal sending chip; the synchronization signal sending chip includes a plurality of the synchronization signal sending interfaces, and the synchronization signal sending interfaces are respectively connected to the synchronization signal input interfaces of the first system chip and the second system chip; the display signal adapter chip includes the display signal input interface and the display signal adapter output interface, the display signal input interface is connected to the display signal output interface of the first system chip, and the display signal adapter output interface is connected to the display signal input interface of the second system chip.

[0108] Specifically, the functional chip includes a display signal adapter chip and a synchronization signal sending chip. The synchronization signal sending chip is configured to send a first synchronization signal and a second synchronization signal to the first system chip and the second system chip respectively. The display signal adapter chip is configured to receive a display signal sent by the first system chip and send the display signal to the second system chip through a display signal adapter output interface.

[0109] In one embodiment, the display device includes a control instruction output interface; the second system chip also includes a control instruction input interface, the control instruction input interface of the second system chip is connected to the control instruction output interface of the display device, and the control instruction input interface of the second system chip is configured to receive touch screen control instructions from the display device.

[0110] Specifically, during the display process of the display device, after receiving the touch screen control instruction, the display device sends the touch screen control instruction to the second system chip through the control instruction output interface.

[0111] See attached Figure 3 , Figure 3 FIG. 1 is a schematic diagram of the main structure block diagram of a control system of a display device according to another embodiment of the present application. Figure 3 As shown, this embodiment provides a parallel structure solution for the control system of the display device.

[0112] In one embodiment, the function chip includes a display signal input interface, a display signal output interface, and a plurality of synchronization signal output interfaces and a synchronization signal input interface; the first system chip includes a display signal output interface and a synchronization signal input interface; the second system chip includes a display signal output interface and a synchronization signal input interface; the display device includes a display signal input interface and a synchronization signal output interface; the synchronization signal input interface of the function chip is connected to the synchronization signal output interface of the display device, and the synchronization signal input interface is configured to receive a third synchronization signal sent by the display device; the synchronization signal output interface of the function chip is respectively connected to the synchronization signal input interfaces of the first system chip and the second system chip, and the synchronization signal output interface is configured to send the third synchronization signal to the first system chip and the second system chip respectively; the display signal input interface of the function chip is respectively connected to the display signal output interfaces of the first system chip and the second system chip, and the display signal input interface is configured to receive the display signal sent by the first system chip and the second system chip; the display signal output interface of the function chip is connected to the display signal input interface of the display device, and the display signal output interface is configured to send the display signal sent by the first system chip and the second system chip to the display device.

[0113] Specifically, the display device sends the third synchronization signal to the functional chip through the synchronization signal output interface, and the third synchronization signal may be a vertical synchronization signal (VSYNC signal) of the display device. The functional chip forwards the received third synchronization signal to the first system chip and the second system chip through the synchronization signal output interface. After receiving the third synchronization signal, the first system chip and the second system chip send the display signal to the functional chip through the display signal output interface. The functional chip processes the display signal transmitted from the first system chip and the second system chip, and sends the processed display signal to the display device through the display signal output interface.

[0114] In one embodiment, the function chip further includes a control instruction input interface; the display device includes a control instruction output interface; the first system chip further includes a control instruction output interface and a control instruction input interface, the control instruction input interface of the first system chip is connected to the control instruction output interface of the display device, and the control instruction input interface of the first system chip is configured to receive touch screen control instructions from the display device; the control instruction output interface of the first system chip is connected to the control instruction input interface of the function chip, and the control instruction input interface of the function chip is configured to receive touch screen control instructions sent from the first system chip; or, the second system chip further includes a control instruction output interface and a control instruction input interface, the control instruction input interface of the second system chip is connected to the control instruction output interface of the display device, and the control instruction input interface of the second system chip is configured to receive touch screen control instructions from the display device; the control instruction output interface of the second system chip is connected to the control instruction input interface of the function chip, and the control instruction input interface of the function chip is configured to receive touch screen control instructions sent from the second system chip.

[0115] Specifically, during the display process of the display device, the display device obtains a touch screen control instruction from a user to adjust the display screen, for example, to reduce, enlarge, or overlay the display screen. After receiving the touch screen control instruction, the display device sends the touch screen control instruction to a first system chip or a second system chip connected to a control instruction output interface of the display device, and the first system chip or the second system chip forwards the touch screen control instruction to the function chip through the control instruction output interface. The function chip processes the display signal based on the touch screen control instruction and sends the processed display signal to the display device.

[0116] In one embodiment, the first system chip is configured to run an entertainment operating system; the second system chip is configured to run a central control operating system; or, the first system chip is configured to run a central control operating system; the second system chip is configured to run an entertainment operating system.

[0117] Specifically, the first system chip is configured to run an entertainment operating system, which may be a vehicle rear entertainment system; the second system chip is configured to run a central control operating system, which may be an operating system connected to the vehicle central control screen and responsible for controlling the vehicle central control. Alternatively, the first system chip is configured to run the central control operating system, and the second system chip is configured to run the entertainment operating system. It is understandable that the operating system running on the system chip can be flexibly adjusted according to actual needs, and no specific limitation is made here.

[0118] In one embodiment, the entertainment operating system is built based on the Android operating system; the central control operating system is built based on the QNX operating system and the Android virtual machine.

[0119] See attached Figure 4 , Figure 4 It is a flowchart of main steps of a method for controlling a display device according to an embodiment of the present application.

[0120] like Figure 4 As shown, this embodiment provides a control method for a display device, and for a series structure solution of a control system of the display device, the method includes the following steps:

[0121] Step S101: the function chip sends a first synchronization signal and a second synchronization signal to the first system chip and the second system chip respectively.

[0122] Specifically, the functional chip sends a first synchronization signal to the first system chip, and the first synchronization signal may be a vertical synchronization signal (VSYNC signal). The functional chip sends a second synchronization signal to the second system chip, and the second synchronization signal may be a synchronization signal (SYNC signal). One of the purposes of the functional chip sending the first synchronization signal and the second synchronization signal to the first system chip and the second system chip is to simulate a standard camera and a standard display screen, and send synchronization signals to the system chips. In addition, after signal alignment is achieved based on the first synchronization signal and the second synchronization signal, the systems at both ends of the first system chip and the second system chip can transmit data in the same synchronization signal cycle, without having to wait for an extra synchronization signal cycle, thereby reducing latency.

[0123] Step S102: the first system chip sends a display signal to the function chip based on the first synchronization signal.

[0124] Specifically, the first system chip sends a display signal to the function chip based on the received first synchronization signal.

[0125] Step S103: the function chip forwards the display signal from the first system chip to the second system chip.

[0126] Specifically, the function chip forwards the display signal from the first system chip to the second system chip through the display signal transfer output interface.

[0127] Step S104: the second system chip receives the display signal of the first system chip based on the second synchronization signal, and combines the display signal of the first system chip and the display signal locally generated by the second system chip.

[0128] Specifically, based on the second synchronization signal, the second system chip receives the display signal from the first system chip forwarded by the functional chip, and merges the display signal of the first system chip and the local display signal of the second system chip to obtain a first signal to be displayed. The merging process may be superimposing or cropping the display signals from the two system chips.

[0129] Step S105: the second system chip sends the first signal to be displayed to the display device, so that the first signal to be displayed is displayed on the display device.

[0130] Specifically, the second system chip integrates the contents to be displayed by the two system chips into a first signal to be displayed and sends it to the display device, so that the display contents of the two system chips are displayed on the display device.

[0131] In one embodiment, the method also includes: the second system chip obtains a touch screen control instruction of the display device; the second system chip adjusts and processes the display signals from the first system chip and the second system chip based on the touch screen control instruction to obtain a second signal to be displayed; and the functional chip sends the second signal to be displayed to the display device so that the display device displays a display interface of the second signal to be displayed.

[0132] Specifically, during the process of the display device displaying the display content corresponding to the first signal to be displayed, the user can adjust the display screen of the display device, for example, reducing, enlarging, superimposing the display screen, etc. After the display device receives the touch screen control instruction operated by the user on the display device, the touch screen control instruction is sent to the second system chip. The second system chip adjusts the display signals from the first system chip and the second system chip according to the touch screen control instruction to obtain the second signal to be displayed, and sends the second signal to be displayed to the display device. The display device displays the display interface corresponding to the second signal to be displayed.

[0133] In one embodiment, when an entertainment operating system is run on a first system chip and a central control operating system is run on a second system chip, and the entertainment operating system is built based on an Android system, the control method of the display device of the present application also includes pre-modifying the offset (vsyncoffset) of the vertical synchronization signal of the SurfaceFlinker of the entertainment operating system to enable the display signal of the entertainment operating system to be provided to the central control operating system earlier. SurfaceFlinker is a component in the entertainment operating system responsible for synthesizing the content displayed on the screen, and the vertical synchronization signal (vsync) is used to synchronize the refresh of the display device and the rendering of the graphics content.

[0134] Specifically, in the display process of a conventional entertainment operating system, the drawing operation must wait for the VSYNC signal of the display system to start. Then, it is necessary to wait for a VSYNC cycle to complete the synthesis, and finally wait for another VSYNC cycle to display the content on the screen. This process is the standard default operation.

[0135] By sending the first synchronization signal and the second synchronization signal to the first system chip and the second system chip at the same time, it is ensured that the first synchronization signal starting from the output of the first system chip and the second synchronization signal starting from the input of the second system chip are synchronized. Then the VSYNC time given to the application software is modified. Specifically, the drawing start time of the software system can be staggered with the VSYNC time of the application software, so that the software system starts drawing at a fixed time staggered with the VSYNC time of the application software.

[0136] Usually, entertainment operating systems with strong computing power do not need a full VSYNC to draw the content that the application needs to draw. For example, in a normal VSYNC cycle of 16.7 milliseconds, in fact, software drawing may only take 3-6ms, and the synthesis process usually only takes 3ms. In order to take full advantage of this performance advantage and reduce latency, the vsync offset is set to 9ms. In this way, the drawing and synthesis tasks that originally required two VSYNC cycles to complete can now be completed within one VSYNC cycle. Specifically, drawing starts when the VSYNC signal arrives, and drawing is completed within 6ms. Synthesis starts at 9ms at the latest, and synthesis is completed within 3ms. In this way, the entire rendering process (drawing + synthesis) is completed within 12ms, and the VSYNC cycle is 16.7ms. Therefore, all rendering tasks can be completed within one VSYNC cycle.

[0137] See attached Figure 5 , Figure 5 It is a flowchart diagram of main steps of a method for controlling a display device according to another embodiment of the present application.

[0138] like Figure 5 As shown, this embodiment provides a control method for a display device, and for a parallel structure solution of a control system of the display device, the method includes the following steps:

[0139] Step S201: the function chip obtains a third synchronization signal from the display device.

[0140] Specifically, the function chip obtains a third synchronization signal transmitted from the display device, and the third synchronization signal may be a vertical synchronization signal (VSYNC signal).

[0141] Step S202: the function chip sends the third synchronization signal to the first system chip and the second system chip respectively.

[0142] Step S203: the first system chip and the second system chip respectively send display signals to the function chip based on the third synchronization signal.

[0143] Specifically, after receiving the third synchronization signal, the first system chip and the second system chip respectively send display signals to the function chip.

[0144] Step S204: the function chip combines the display signals from the first system chip and the second system chip to obtain a third signal to be displayed.

[0145] Specifically, after the functional chip receives the display signals from the first system chip and the second system chip, the two display signals are merged and processed. For example, part of the display content corresponding to the display signal of the first system chip is superimposed on the display content corresponding to the display signal of the second system chip according to the coordinates of the display content, or the display content corresponding to the display signal of the second system chip is superimposed on the display content corresponding to the display signal of the first system chip according to the coordinates of the display content; or, the display content corresponding to the display signal of the first system chip is displayed separately, or the display content corresponding to the display signal of the second system chip is displayed separately.

[0146] Step S205: the function chip sends the third signal to be displayed to the display device, so that the display device displays a display interface of the third signal to be displayed.

[0147] In one embodiment, the method also includes: the functional chip obtains a touch screen control instruction from the first system chip or the second system chip; the functional chip adjusts and processes the display signals from the first system chip and the second system chip based on the touch screen control instruction to obtain a fourth signal to be displayed; the functional chip sends the fourth signal to be displayed to the display device, so that the display device displays the display interface of the fourth signal to be displayed.

[0148] Specifically, during the process of the display device displaying the display interface of the third signal to be displayed, the user adjusts the display interface of the display device. After the display device receives the touch screen control instruction operated by the user on the display device, the display device sends the touch screen control instruction to the first system chip or the second system chip connected to the display device, and the first system chip or the second system chip sends the touch screen control instruction to the functional chip. The functional chip adjusts the display signal based on the touch screen control instruction to obtain the fourth signal to be displayed, and sends the fourth signal to be displayed to the display device for display.

[0149] In one embodiment, an entertainment operating system is run on the first system chip, and a central control operating system is run on the second system chip; or, a central control operating system is run on the first system chip, and an entertainment operating system is run on the second system chip.

[0150] In one embodiment, the entertainment operating system is constructed based on the Android operating system; and the central control operating system is constructed based on the QNX operating system and the Android virtual machine.

[0151] It should be pointed out that although the various steps in the above embodiments are described in a specific order, those skilled in the art can understand that in order to achieve the effect of the present application, different steps do not have to be executed in such an order. They can be executed simultaneously (in parallel) or in other orders. These changes are within the scope of protection of the present application.

[0152] It is understood by those skilled in the art that all or part of the processes in the method for implementing the above-mentioned embodiment of the present application can also be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable storage medium may include: any entity or device, medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory, random access memory, electrical carrier signal, telecommunication signal and software distribution medium, etc. that can carry the computer program code.

[0153] Furthermore, the present application also provides a smart device.

[0154] See attached Figure 6 , Figure 6 1 is a schematic diagram of the main structure block diagram of a smart device according to an embodiment of the present application. In an embodiment of a smart device according to the present application, the smart device includes a display device 10 and a control system 20 of the display device, the display device is connected to the control system of the display device, and the control system of the display device is configured to execute a control method of the display device, thereby realizing control of the display of the display device.

[0155] Furthermore, the present application also provides a computer-readable storage medium. In a computer-readable storage medium embodiment according to the present application, the computer-readable storage medium may be configured to store a program for executing the control method of the display device of the above-mentioned method embodiment, and the program may be loaded and run by the processor to implement the control method of the above-mentioned display device. For ease of explanation, only the parts related to the embodiment of the present application are shown. For specific technical details not disclosed, please refer to the method part of the embodiment of the present application. The computer-readable storage medium may be a storage device formed by various electronic devices. Optionally, the computer-readable storage medium in the embodiment of the present application is a non-temporary computer-readable storage medium.

[0156] Further, it should be understood that since the setting of each module is only for illustrating the functional units of the device of the present application, the physical devices corresponding to these modules may be the processor itself, or a part of the software in the processor, a part of the hardware, or a part of the combination of software and hardware. Therefore, the number of each module in the figure is only schematic.

[0157] It is understood by those skilled in the art that each module in the device can be adaptively split or merged. Such splitting or merging of specific modules will not cause the technical solution to deviate from the principle of the present application, and therefore, the technical solutions after splitting or merging will fall within the protection scope of the present application.

[0158] The relevant user personal information that may be involved in the various embodiments of this application is strictly in accordance with the requirements of laws and regulations, following the principles of legality, legitimacy and necessity, based on the reasonable purposes of business scenarios, to process the personal information that users actively provide during the use of products / services or generated due to the use of products / services, as well as the personal information obtained with the user's authorization.

[0159] The user personal information processed by this application will vary depending on the specific product / service scenario, and will be based on the specific scenario in which the user uses the product / service. It may involve the user's account information, device information, driving information, vehicle information or other related information. The applicant will treat the user's personal information and its processing with a high degree of diligence.

[0160] This application attaches great importance to the security of user personal information and has taken reasonable and feasible security protection measures that meet industry standards to protect user information and prevent personal information from being accessed, disclosed, used, modified, damaged or lost without authorization.

[0161] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. A control system for a display device, characterized in that: The control system includes: a first system chip, a second system chip and a function chip; The function chip is configured to perform data exchange with the first system chip and the second system chip, so that a display signal from the first system chip and / or the second system chip is displayed on the display device.

2. The control system of the display device according to claim 1, characterized in that: The functional chip includes a display signal input interface, a display signal switching output interface and a plurality of synchronization signal sending interfaces; The first system chip includes a display signal output interface and a synchronization signal input interface; The second system chip includes a display signal input interface and a synchronization signal input interface; The display device comprises a display signal input interface; The synchronization signal sending interface of the function chip is connected to the synchronization signal input interfaces of the first system chip and the second system chip respectively, and the synchronization signal sending interface is configured to send a first synchronization signal and a second synchronization signal to the first system chip and the second system chip respectively; The display signal input interface of the function chip is connected to the display signal output interface of the first system chip, and the display signal input interface is configured to receive a display signal of the first system chip; The display signal transfer output interface of the functional chip is connected to the display signal input interface of the second system chip, and the display signal transfer output interface is configured to send the display signal of the first system chip to the second system chip; The display signal output interface of the second system chip is connected to the display signal input interface of the display device, and the display signal output interface is configured to send the display signal of the first system chip and the display signal locally generated by the second system chip to the display device.

3. The control system of the display device according to claim 2, characterized in that: The functional chip includes a display signal switching chip and a synchronization signal sending chip; The synchronization signal sending chip comprises a plurality of synchronization signal sending interfaces, and the synchronization signal sending interfaces are respectively connected to the synchronization signal input interfaces of the first system chip and the second system chip; The display signal switching chip includes the display signal input interface and the display signal switching output interface. The display signal input interface is connected to the display signal output interface of the first system chip, and the display signal switching output interface is connected to the display signal input interface of the second system chip.

4. The control system of the display device according to claim 2, characterized in that: The display device includes a control instruction output interface; The second system chip also includes a control instruction input interface, which is connected to the control instruction output interface of the display device, and the control instruction input interface of the second system chip is configured to receive a touch screen control instruction from the display device.

5. The control system of the display device according to claim 1, characterized in that: The functional chip includes a display signal input interface, a display signal output interface, and a plurality of synchronization signal output interfaces and a synchronization signal input interface; The first system chip includes a display signal output interface and a synchronization signal input interface; The second system chip includes a display signal output interface and a synchronization signal input interface; The display device comprises a display signal input interface and a synchronization signal output interface; The synchronization signal input interface of the function chip is connected to the synchronization signal output interface of the display device, and the synchronization signal input interface is configured to receive a third synchronization signal sent by the display device; The synchronization signal output interface of the function chip is connected to the synchronization signal input interfaces of the first system chip and the second system chip respectively, and the synchronization signal output interface is configured to send the third synchronization signal to the first system chip and the second system chip respectively; The display signal input interface of the function chip is connected to the display signal output interfaces of the first system chip and the second system chip respectively, and the display signal input interface is configured to receive display signals sent by the first system chip and the second system chip; The display signal output interface of the function chip is connected to the display signal input interface of the display device, and the display signal output interface is configured to send the display signals sent by the first system chip and the second system chip to the display device.

6. The control system of the display device according to claim 4, characterized in that: The functional chip further comprises a control instruction input interface; the display device comprises a control instruction output interface; The first system chip further includes a control instruction output interface and a control instruction input interface, the control instruction input interface of the first system chip is connected to the control instruction output interface of the display device, and the control instruction input interface of the first system chip is configured to receive a touch screen control instruction from the display device; The control instruction output interface of the first system chip is connected to the control instruction input interface of the function chip, and the control instruction input interface of the function chip is configured to receive the touch screen control instruction sent from the first system chip; or, The second system chip further includes a control instruction output interface and a control instruction input interface, the control instruction input interface of the second system chip is connected to the control instruction output interface of the display device, and the control instruction input interface of the second system chip is configured to receive a touch screen control instruction from the display device; The control instruction output interface of the second system chip is connected to the control instruction input interface of the function chip, and the control instruction input interface of the function chip is configured to receive the touch screen control instruction sent from the second system chip.

7. The control system of the display device according to claim 1, characterized in that: The first system chip is configured to run an entertainment operating system; the second system chip is configured to run a central control operating system; or, The first system chip is configured to run a central control operating system; the second system chip is configured to run an entertainment operating system.

8. The control system of the display device according to claim 7, characterized in that: The entertainment operating system is built based on the Android operating system; the central control operating system is built based on the QNX operating system and the Android virtual machine.

9. A method for controlling a display device, characterized in that: The method comprises: The function chip sends a first synchronization signal and a second synchronization signal to the first system chip and the second system chip respectively; The first system chip sends a display signal to the function chip based on the first synchronization signal; The function chip forwards the display signal from the first system chip to the second system chip; The second system chip receives the display signal of the first system chip based on the second synchronization signal, and combines the display signal of the first system chip and the display signal generated locally by the second system chip to obtain a first signal to be displayed; The second system chip sends the first signal to be displayed to a display device, so that the first signal to be displayed is displayed on the display device.

10. The control method of the display device according to claim 9, characterized in that: The method further comprises: The second system chip obtains a touch screen control instruction of the display device; The second system chip adjusts and processes the display signals from the first system chip and the second system chip based on the touch screen control instruction to obtain a second signal to be displayed; The function chip sends the second signal to be displayed to the display device, so that the display device displays a display interface of the second signal to be displayed.

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