CN115675085A - Digital cabin system and vehicle - Google Patents

Abstract

The application discloses digital passenger cabin system and vehicle belongs to vehicle technical field. The digital cockpit system comprises a system-on-chip (SoC), a Micro Control Unit (MCU), a Driver Monitoring System (DMS), a panoramic monitoring image system (AVM), a central control screen and an instrument screen. The SoC is used for receiving and processing the first video signal from the DMS and/or the AVM to obtain a second video signal, and sending the second video signal to the central control screen. The central control screen is used for displaying first video information corresponding to the second video signal. The SoC is also used for receiving a first target signal sent by the central control screen and sending the first target signal to the MCU. The MCU is used for receiving and processing the first target signal to obtain a second target signal and sending the second target signal to the instrument screen. The instrument screen is used for displaying second target information corresponding to the second target signal. By adopting the technical scheme provided by the application, the fluency of the display process of the plurality of display screens is improved.

Description

Digital cabin system and vehicle

Technical Field

The application relates to the technical field of vehicles, in particular to a digital cockpit system and a vehicle.

Background

With the advent of more and more onboard electronics, digital cabin systems have evolved. The intelligent interaction process of the digital cabin system can bring more intelligent and more comfortable experience for users.

In the related art, an android System and a real-time operating System are formed by virtualizing a System-on-a-Chip (SoC) of a digital cockpit System. The android system runs a central control function, and the real-time operating system runs an instrument function, so that the digital cabin system with the virtualized SoC can realize corresponding functions of various vehicle-mounted electronic devices. However, since the SoC virtualization operation process occupies a lot of memory resources, the memory resources allocated to the actual functions may be insufficient, and thus when the SoC drives a plurality of display screens on the vehicle, the screen of the display screen may be jammed or unsmooth, and the user experience is reduced.

Disclosure of Invention

In view of this, the application provides a digital cockpit system and vehicle, can promote the smoothness of polylith display screen display process, has improved user experience.

On one hand, the embodiment of the application provides a display method, wherein a digital cabin system comprises a system-on-chip (SoC), a Micro Control Unit (MCU), a Driver Monitoring System (DMS), a panoramic monitoring image system (AVM), a central control screen and an instrument screen, the SoC is in signal connection with the MCU, the SoC is in signal connection with the DMS, the AVM and the central control screen respectively, and the MCU is in signal connection with the instrument screen;

the SoC is used for receiving and processing a first video signal from the DMS and/or the AVM to obtain a second video signal, and sending the second video signal to the central control screen;

the central control screen is used for displaying first video information corresponding to the second video signal;

the SoC is also used for receiving a first target signal sent by the central control screen and sending the first target signal to the MCU;

the MCU is used for receiving and processing the first target signal to obtain a second target signal and sending the second target signal to the instrument screen;

the instrument screen is used for displaying second target information corresponding to the second target signal.

Optionally, the SoC is in signal connection with the MCU through an SPI line, an LVDS line and a UART line, the SoC is in signal connection with the DMS, the AVM and the central control screen through an LVDS line, and the MCU is in signal connection with the instrument panel through an LVDS line.

Optionally, the central control screen is further configured to display a screen projection button, and send the first target signal to the SoC in response to a screen projection trigger signal generated by performing a trigger operation on the screen projection button.

Optionally, the instrument screen is further configured to switch a display interface of the instrument screen to a screen projection mode after the second target signal starts to be received, and then display second target information corresponding to the second target signal.

Optionally, when the information indicated by the first target signal is a picture, the SoC is configured to send the second target signal to the MCU through the SPI line.

Optionally, when the information indicated by the first target signal is a video, the SoC is configured to send the second target signal to the MCU through the LVDS line.

Optionally, the digital cabin system further includes a head-up display, the SoC is in signal connection with the head-up display, and the MCU is further configured to receive and process a CAN signal of a vehicle, and send the processed CAN signal to the head-up display;

the head-up display is used for displaying third target information corresponding to the CAN signal.

Optionally, the SoC and the MCU interact with each other through the UART line to obtain vehicle status data.

Optionally, the digital cockpit system further comprises a double data rate synchronous dynamic random access memory DDR and a Flash memory Flash;

the DDR is connected with the SoC and used for storing the SoC operation data;

and the Flash is connected with the MCU and used for storing the operation data of the instrument screen.

In another aspect, the present embodiment also provides a vehicle, where the vehicle includes the digital cabin system described in any one of the above.

The digital cabin system provided by the application comprises a system-on-chip SoC, a micro control unit MCU, a driver monitoring system DMS, a panoramic monitoring image system AVM, a central control screen and an instrument screen. The SoC is used for receiving and processing the first video signal from the DMS and/or the AVM to obtain a second video signal, and sending the second video signal to the central control screen, and then the central control screen can display the first video information corresponding to the second video signal. Therefore, the function of displaying video information by using the control screen in the SoC drive is realized. Meanwhile, the SoC is also used for receiving a first target signal sent by the central control screen and sending the first target signal to the MCU. And then the MCU is used for receiving and processing the first target signal to obtain a second target signal, and sending the second target signal to the instrument screen, so that the instrument screen can display second target information corresponding to the second target signal. Therefore, the function of displaying target information by using the MCU to drive the instrument screen is realized. That is to say, the digital cockpit system that this application provided utilizes SoC and MCU to drive different display screens respectively and shows, has avoided SoC to bear overweight to the smoothness nature of polylith display screen picture display process has been improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a digital cabin system provided in an embodiment of the present application;

fig. 2 is a schematic diagram of a digital cockpit system provided in an embodiment of the present application.

Reference numerals:

1、SoC；

2、MCU；

3、DMS；

4、AVM；

5. a central control screen;

6. an instrument panel;

7. a head-up display;

8. a CAN transceiver;

9、DDR；

10、Flash；

11. a first deserializer;

12.a second deserializer;

13. a first serializer;

14. a third deserializer;

15. a second serializer;

16. a fourth deserializer;

17. a third serializer;

18. a fifth deserializer;

19. and (7) a PCB board.

With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Unless defined otherwise, all technical terms used in the examples of the present application have the same meaning as commonly understood by one of ordinary skill in the art.

In order to make the technical solutions and advantages of the present application clearer, the following will describe the embodiments of the present application in further detail with reference to the accompanying drawings.

As shown in fig. 1, an embodiment of the present application provides a digital cockpit System, which includes a System-on-a-Chip SoC1, a micro control Unit MCU2, a Driver Monitor System DMS3, a panoramic View Monitor AVM44, a central control screen 5, and an instrument screen 6, where SoC1 is in signal connection with DMS3, AVM4, and central control screen 5, and MCU2 is in signal connection with instrument screen 6. Note that, the SoC1 is a SoC1 having a function of handling a high computational power demand, and for example, video data transmitted by the AVM4 or the DMS3 may be subjected to corresponding arithmetic processing. The MCU2 is a high performance MCU2 mounted with a graphics accelerator. For example, the MCU2 can be a high-performance MCU2 such as an England flying MCU2 with the model of Amber-PII/TrevoII-C, a Rysa MCU2 with the model of RH850, an Enzhipu MCU2 with the model of MPC5645, and a Toshiba MCU2 with the model of Capricorn.

The SoC1 is configured to receive and process the first video signal from the DMS3 and/or AVM4, obtain a second video signal, and send the second video signal to the central control screen 5. The central control screen 5 is used for displaying first video information corresponding to the second video signal. It should be noted that the first video signal is an encoded video signal. The second video signal may be a video signal obtained by superimposing video information corresponding to the first video signal on the basic display interface of the central control screen 5. In some embodiments, the DMS3 and/or AVM4 encode the acquired initial video data to obtain a first video signal, and then transmit the first video signal to the SoC1. Therefore, the process of displaying the related video information by driving the central control screen 5 through the SoC1 is realized. The center screen 5 is generally positioned to the side of the driver, and the center screen 5 is attached to a middle position, a right position, a left position, and the like of the instrument panel. The center control screen 5 can be used for displaying contents such as entertainment information, navigation information, vehicle equipment adjustment information, and the like, in addition to the first video information.

The SoC1 is further configured to receive a first target signal sent by the central control screen 5, and send the first target signal to the MCU2. The MCU2 is used for receiving and processing the first target signal to obtain a second target signal, and sending the second target signal to the instrument screen 6. The instrument panel 6 is used for displaying second target information corresponding to the second target signal. The second target signal may be a signal obtained by superimposing information corresponding to the first target signal on the basic display interface of the instrument panel 6. Therefore, the process of displaying relevant information by driving the instrument screen 6 through the MCU2 is realized. It should be noted that the meter panel 6 is generally located at a position right in front of the steering wheel of the driver, and may be used for displaying status information of the vehicle, such as speed, oil amount, and the like of the vehicle, in addition to the second target information.

The digital cabin system provided by the application not only realizes the function of displaying video information by driving the central control screen 5 by the SoC1, but also realizes the function of displaying target information by driving the instrument screen 6 by the MCU2. That is to say, the digital cockpit system that this application provided utilizes SoC1 and MCU2 to drive different display screens respectively and shows, has avoided SoC1 to bear overweight to the smoothness nature of polylith display screen picture display process has been improved.

The composition of the digital cabin system provided by the embodiments of the present application will be described in more detail with reference to fig. 2.

In some embodiments, soC1 and MCU2 are in signal connection via an SPI (Serial Peripheral Interface) line, an LVDS (Low Voltage Differential signaling) line and a UART (Universal Asynchronous Receiver/Transmitter) line, soC1 is in signal connection with DMS3, AVM4 and central control panel 5 respectively via LVDS lines, and MCU2 is in signal connection with instrument panel 6 via LVDS lines. It should be noted that the SPI line can implement bidirectional data transmission by using a high-speed, full-duplex synchronous communication technology. The LVDS line can realize bidirectional data transmission by using a differential signal technology with low power consumption, low bit error rate, low crosstalk and low radiation. The UART line is a universal serial data bus that communicates bi-directionally, enabling full duplex and data reception.

In some embodiments, the digital cockpit system further comprises a first deserializer 11 corresponding to the DMS 3. The DMS3 and the first deserializer 11 are in signal connection via an LVDS line, and the first deserializer 11 and the SoC1 are also in signal connection via an LVDS line. The DMS3 is configured to send the encoded first video signal to the first deserializer 11, and the first deserializer 11 is configured to decode the first video signal sent by the DMS3 and send the decoded first video signal to the SoC1.

In some embodiments, the digital cabin system further comprises a second deserializer 12 corresponding to AVM 4. The AVM4 is configured to send the encoded first video signal to the second deserializer 12, and the second deserializer 12 is configured to decode the first video signal sent by the AVM4 and send the decoded first video signal to the SoC1.

In some embodiments, the digital cabin system further comprises a first serializer 13 and a third deserializer 14. The first serializer 13 is connected to the SoC1 via LVDS lines. The third deserializer 14 is signal-connected to the first serializer 13 and the central control screen 5 through LVDS lines, respectively. The first serializer 13 is configured to encode the second video signal and send the encoded second video signal to the third deserializer 14, and the third deserializer 14 is configured to decode the second video signal and send the decoded second video signal to the central control screen 5.

As can be seen from the above, the video signal sequentially passes through the DMS3/AVM4, the first deserializer 11/the second deserializer 12, the SoC1, the first serializer 13, and the third deserializer 14, and is finally sent to the central control screen 5, so that the central control screen 5 can display the first video information corresponding to the second video signal. Therefore, the process of displaying the video image information acquired by the DMS3/AVM4 by utilizing the SoC1 to drive the central control screen 5 is realized.

In some embodiments, the central control screen 5 is further configured to display a screen projection button, and send the first target signal to the SoC1 in response to a screen projection trigger signal generated by performing a trigger operation on the screen projection button. In some embodiments, the central control screen 5 transmits a first target signal corresponding to first target information to the SoC1, wherein the first target information may be a region selected by a user. For example, in response to the user selecting the target display area on the center control screen 5, the information displayed by the target display area is the first target information. The manner in which the user selects the target display area may be various, for example, the user clicks any position in the target display area, that is, the information displayed in the target area is used as the information projected onto the instrument panel 6. Or, if the user circles a closed area on the central control screen 5, the information displayed in the closed area is the first target information. There are also various ways of determining the target display area, which are not listed here. It should be noted that the central control panel 5 is connected to various vehicle-mounted systems such as an entertainment system, a navigation system, a sound adjusting system, and an air conditioning adjusting system in the vehicle. The screen projecting operation of the center screen 5 will be described below by taking the navigation system as an example. The central control screen 5 comprises a navigation interface, the navigation system sends navigation information to the central control screen 5, and the central control screen 5 is used for receiving and displaying the navigation information. Besides displaying the dynamic map, the navigation interface is also provided with a screen projection button. Responding to a screen projection trigger signal generated by a user in real-time trigger operation on a screen projection button, and sending a first target signal corresponding to all or part of a dynamic map of a navigation interface to the SoC1 by the central control screen 5. The trigger operation may be a single click operation, a long-time press operation, a double-click operation, or other trigger operations for selecting the screen. In some embodiments, the screen-shot trigger signal may also be generated based on a target gesture or a target voice.

In some embodiments, the instrument panel 6 is further configured to switch the display interface of the instrument panel 6 to the screen projection mode after the second target signal is received, and then display the second target information corresponding to the second target signal. In some embodiments, the dashboard screen 6 includes multiple display areas, each for displaying different information. The plurality of display areas comprise screen projection areas, and the screen projection areas are used for displaying second target information. The switching of the display interface of the instrument panel 6 to the screen projection mode means that the screen projection area of the instrument panel 6 is switched from an unlit state to an lit state, or the screen projection area of the instrument panel 6 is switched from a first brightness to a second brightness, wherein the first brightness is smaller than the second brightness. It should be noted that the brightness of the switching of the projection area may be adjusted based on the brightness of the light in the cabin, so that the driver can see the second target information clearly.

In some embodiments, the instrument screen 6, in response to receiving the second target signal, automatically switches the display interface of the instrument screen 6 to the screen-on mode and displays second target information corresponding to the second target signal. Therefore, the process of automatic screen projection is realized, the screen projection efficiency is improved, and the driver can see the second target information on the instrument screen 6 more quickly.

In some embodiments, the meter panel 6 switches the display interface of the meter panel 6 to the screen-projection mode based on a switching operation, wherein the switching operation is a pressing operation of a switching button by a user. For example, the switching button is a switching button corresponding to the screen projection mode on the steering wheel, and based on the driver performing click operation, long-time press operation or double-click operation on the switching button on the steering wheel, the dashboard switches the display interface to the screen projection mode and displays second target information corresponding to the second target signal. It should be noted that the second target information is displayed when the instrument screen 6 is switched to the screen projecting mode, so that an unnecessary screen projecting process caused by a user mistakenly touching a screen projecting button on the central control screen 5 is avoided, that is, the screen projecting process can be ensured to be realized under the real requirements of the user, and the processing resources of the screen projecting process are avoided being wasted.

In some embodiments, when the information indicated by the first target signal is a picture, the SoC1 is configured to send the second target signal to the MCU2 through the SPI line. It should be noted that the SPI line may be used to transmit the picture data. The pictures may be icons representing an album icon, a singer icon and the like corresponding to a song being played on the central control screen 5, or may be pictures representing icons representing an air conditioner wind speed displayed on the central control screen 5 and the like corresponding to screen projection information selected by the user on the central control screen 5.

In some embodiments, when the information indicated by the first target signal is video, the SoC1 is configured to transmit the second target signal to the MCU2 through the LVDS line. It should be noted that the LVDS line may be used to transmit video data. The video may be a dynamic navigation map, vehicle surrounding information, a song MV, or the like corresponding to screen projection information selected by the user on the center control screen 5.

Note that the center control panel 5 on the vehicle is generally located not directly in front of the driver but on the side of the driver. When the driver wants to see the information displayed on the central control screen 5, the driver needs to turn his head or lean on his body to see the relevant information. However, if the driver performs a head twisting or body leaning operation while the vehicle is traveling, the driving process may be affected, and dangerous driving may occur. Since the instrument panel 6 is located right in front of the driver, the screen projection process is performed, that is, the information to be viewed on the central control panel 5 is projected onto the instrument panel 6 for display. Therefore, the driver can directly see the related information on the instrument screen 6 right in front of the driving position without twisting the head or turning the body, and the safety of the driving process is improved in the screen projecting process.

In some embodiments, the digital cockpit system further comprises a second serializer 15 and a fourth deserializer 16. The second serializer 15 is in signal connection with the MCU2 through an LVDS line. The fourth deserializer 16 is in signal connection with the second serializer 15 and the instrument panel 6, respectively, through LVDS lines. The second serializer 15 is configured to encode the second target signal and send the encoded second target signal to the fourth deserializer 16, and the fourth deserializer 16 is configured to decode the second target signal and send the decoded second target signal to the instrument panel 6. As can be seen from the above, the second target signal sequentially passes through the MCU2, the second serializer 15, and the fourth deserializer 16, and is finally transmitted to the instrument panel 6, so that the instrument panel 6 can display second target information corresponding to the second target signal.

In some embodiments, the digital cockpit system further includes a head-up display 7, the soc1 is in signal connection with the head-up display 7, and the MCU2 is further configured to receive and process a CAN (Controller Area Network) signal of the vehicle, and transmit the processed CAN signal to the head-up display 7. The head-up display 7 is used for displaying third target information corresponding to the CAN signal. In some embodiments, the digital cabin system further comprises a CAN transceiver 8, two sides of the CAN transceiver 8 are respectively connected with the MCU2 and the target device, and the CAN transceiver 8 is used for transmitting a CAN signal transmitted by the target device to the MCU2. The target device may be a device used for monitoring vehicle operation state data on the vehicle, or may be other devices. For example, the target device is a lane monitoring device for monitoring lane information of a current location of the vehicle, and the lane information includes lane information such as a straight lane, a left-turn lane, a right-turn lane, or a reversible lane. And if the lane information monitored by the lane monitoring equipment is a left-turning lane, transmitting the left-turning lane information to the CAN transceiver 8 through a CAN signal. The CAN transceiver 8 is used for transmitting the CAN signal to the MCU2, and the MCU2 is used for receiving and processing the CAN signal for marking the lane information and transmitting the processed CAN signal to the head-up display 7. The head-up display 7 is used for displaying left-turning lane information corresponding to the CAN signal, for example, the head-up display 7 displays a left-turning arrow pattern. Therefore, the process of displaying the third target information sent by the target device by using the MCU2 to drive the head-up display 7 is realized. The digital cabin system that this application provided can utilize SoC1 and MCU2 to drive different display screens respectively and show information, avoids all display screens to lead to SoC1 to bear overweight by SoC1 drive, leads to the display screen's display screen to appear blocking not smooth phenomenon. That is, the digital cockpit system provided by the application can improve the processing efficiency of display resources and improve the smoothness of the display screen in the picture display process.

In some embodiments, the digital cockpit system further comprises a third serializer 17 and a fifth deserializer 18. The third serializer 17 is in signal connection with the MCU2 through an LVDS line. The fifth deserializer 18 is signal-connected to the third serializer 17 and the head-up display 7 through LVDS lines, respectively. The third serializer 17 is configured to encode the CAN signal and send the encoded CAN signal to the fifth deserializer 18, and the fifth deserializer 18 is configured to decode the CAN signal and send the decoded CAN signal to the head-up display 7. As CAN be seen from the above, the CAN signal sequentially passes through the MCU2, the third serializer 17 and the fifth deserializer 18, and is finally transmitted to the head-up display 7, so that the head-up display 7 CAN display the third target information corresponding to the CAN signal.

In some embodiments, the interaction of the vehicle state data between the SoC1 and the MCU2 is performed through a UART line. The vehicle state data may be data such as the speed of the vehicle and the battery state. The data can be transmitted in two directions through the UART circuit, so that the SoC1 and the MCU2 can share data, the convenience of the SoC1 and the MCU2 for acquiring the data is improved, and the efficiency of acquiring the data is improved.

In some embodiments, the digital cockpit System further includes a double data rate synchronous dynamic random access Memory DDR (DDR) 9 and a Flash Memory Flash (Flash 10Memory, flash) 10. The DDR9 is connected with the SoC1 and used for storing the SoC1 operation data. The Flash10 is connected with the MCU2 and used for storing the operation data of the instrument screen 6, and the Flash10 is also used for storing the operation data of the head-up display 7. It should be noted that the SoC1 operation data includes algorithms required by the SoC1 to process different signals, for example, the algorithms required by the SoC1 to process the first video signal to obtain the second video signal. The operation data of the instrument panel 6 includes data such as a figure, a pattern, a symbol, and a character used when the instrument panel 6 or the head-up display 7 displays information. For example, when it is displayed on the head-up display 7 that the vehicle is currently in the left turn lane, the MCU2 acquires a pattern indicating that the arrow of the left turn lane is directed to the left from the Flash10 and transmits the pattern to the head-up display 7 together with the CAN signal indicating the left turn lane, and the head-up display 7 displays the pattern indicating that the arrow is directed to the left. By setting the DDR9 and the Flash10, the SoC1 can obtain the needed algorithm and the MCU2 can obtain the display data more conveniently.

In some embodiments, the SoC1, the MCU2, the DDR9, the Flash10, the first serializer 13, the first deserializer 11, the second deserializer 12, the second serializer 15, and the third serializer 17 and the CAN transceiver 8 are all integrated on the same PCB (Printed Circuit Board) 19. The connection among the modules can be performed through the circuit of the PCB. Therefore, the arrangement space of the digital cabin system can be saved, the data transmission efficiency among the modules can be improved, and the display efficiency of different display screens can be improved. It should be noted that, in fig. 2, a solid arrow indicates that two modules are connected by a physical line, and a dashed arrow indicates that two modules are connected by a virtual line.

In some embodiments, the MCU2 is further configured to manage a power supply of the digital cabin system, wherein the power supply of the digital cabin system includes controlling a power supply voltage value of various devices such as a power supply voltage of the central control panel 5, a power supply voltage of the instrument panel 6, or a power supply voltage of the head-up display 7. For example, the MCU2 receives the brightness transmitted from the light sensor for detecting the brightness of the light in the vehicle, determines the power supply voltage to the instrument panel 6, and increases the power supply voltage to the instrument panel 6 if the brightness in the vehicle is high, so that the user can clearly see the display content of the instrument panel 6. If the brightness in the vehicle is low, the power supply voltage for the instrument panel 6 is reduced, so that the phenomenon of dazzling caused by over-brightness of the display content of the instrument panel 6 is avoided. The MCU2 is used for managing the power supply of the digital cabin system, so that the experience of a user is improved, and the electric quantity can be saved.

The digital cabin system provided by the application realizes the process of respectively driving different display screens to display by utilizing the SoC1 and the MCU2, avoids the too heavy burden of the SoC1, thereby improving the fluency of the picture display process of a plurality of display screens and promoting the experience sense of a user when using the digital cabin system.

The embodiment of the application also provides a vehicle, and the vehicle comprises the digital cabin system. The composition and functions of the digital cockpit system are the same as those of the digital cockpit system in the above embodiment of the present application, and are not described herein again.

The digital cabin system provided by the application utilizes the SoC1 and the MCU2 to respectively drive different display screens to display, so that the over-load of the SoC1 is avoided, and the fluency of the picture display process of a plurality of display screens is improved. The experience of the driving process of the user is improved, and the safety of the driving process is also improved.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the present application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. A digital cockpit system is characterized by comprising a system-on-chip (SoC 1), a micro control unit (MCU 2), a driver monitoring system (DMS 3), a panoramic monitoring image system (AVM 4), a central control screen (5) and an instrument screen (6), wherein the SoC1 is in signal connection with the MCU2, the SoC1 is in signal connection with the DMS3, the AVM4 and the central control screen (5) respectively, and the MCU2 is in signal connection with the instrument screen (6);

the SoC (1) is used for receiving and processing a first video signal from the DMS (3) and/or the AVM (4) to obtain a second video signal, and sending the second video signal to the central control screen (5);

the central control screen (5) is used for displaying first video information corresponding to the second video signal;

the SoC (1) is also used for receiving a first target signal sent by the central control screen (5) and sending the first target signal to the MCU (2);

the MCU (2) is used for receiving and processing the first target signal to obtain a second target signal, and sending the second target signal to the instrument screen (6);

the instrument screen (6) is used for displaying second target information corresponding to the second target signal.

2. The digital cockpit system of claim 1 wherein said SoC (1) is in signal connection with said MCU (2) via SPI, LVDS and UART lines, said SoC (1) is in signal connection with said DMS (3), said AVM (4) and a central control panel (5) via LVDS lines, respectively, and said MCU (2) is in signal connection with said instrument panel (6) via LVDS lines.

3. The digital cockpit system of claim 2 wherein the central control screen (5) is further configured to display a screen projection button, and wherein the first target signal is sent to the SoC (1) in response to a screen projection trigger signal generated by performing a trigger operation on the screen projection button.

4. The digital cockpit system of claim 2, wherein the instrument panel (6) is further configured to switch a display interface of the instrument panel (6) to a screen projection mode after the second target signal is initially received, and then display second target information corresponding to the second target signal.

5. The digital cabin system of claim 2, wherein the SoC (1) is configured to send the second target signal to the MCU (2) via the SPI line when the information indicated by the first target signal is a picture.

6. A digital cabin system according to claim 2, wherein the SoC (1) is configured to send the second target signal to the MCU (2) via the LVDS line when the information indicated by the first target signal is video.

7. The digital cabin system according to claim 1, further comprising a head-up display (7), wherein the SoC (1) is in signal connection with the head-up display (7), and the MCU (2) is further configured to receive and process a CAN signal of a vehicle and transmit the processed CAN signal to the head-up display (7);

and the head-up display (7) is used for displaying third target information corresponding to the CAN signal.

8. Digital cockpit system according to claim 2 characterized in that the interaction of vehicle status data between the SoC (1) and the MCU (2) is done through the UART line.

9. The digital cockpit system of claim 2 further comprising a double data rate synchronous dynamic random access memory DDR (9) and a Flash memory Flash (10);

the DDR (9) is connected with the SoC (1) and is used for storing the operation data of the SoC (1);

the Flash (10) is connected with the MCU (2) and is used for storing the operation data of the instrument screen (6).

10. A vehicle, characterized in that it comprises a digital cabin system according to any one of claims 1 to 9.

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