Video transmission system and method, and vehicle

Abstract

A video transmission system and method, and a vehicle. The system comprises: an image processing module (10), an image conversion module (20), and a screen display module (30), wherein the image processing module (10) is configured to process received image data into center console video data and instrument video data, and send same to the image conversion module; the image conversion module (20) is configured to receive the center console video data and the instrument video data respectively by means of two serializers, respectively serialize the center console video data and the instrument video data into serial center console data and serial instrument data and then separately send same to the screen display module; the screen display module (30) is configured to receive the serial center console data and the serial instrument data sent by the image conversion module (20), separately deserialize the serial center console data and the serial instrument data, and then implement display.

Description

Video transmission system, method and vehicle

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 15, 2023, with application number 202311027467.0, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of signal transmission technology, for example, to a video transmission system, method and vehicle. Background Art

[0003] When displaying video data of the instrument and central control screen, the video data transmission of the instrument and central control screen is usually mixed and connected on the same video serializer, or the video data transmission of each of the instrument and central control screen is mixed and connected on the same video serializer with other reserved screens. This will inevitably occupy each other's bandwidth, resulting in a decrease in the bandwidth of each screen and thus a decrease in data transmission volume, and ultimately reduce the clarity and smoothness of the screen display.

[0004] Summary of the Invention

[0005] The present application provides a video transmission system, method and vehicle to solve the problems of low screen clarity and fluency.

[0006] According to one aspect of the present application, a video transmission system is provided, comprising: an image processing module, an image conversion module, and a screen display module, wherein the image conversion module is connected to the image processing module and the screen display module respectively;

[0007] The image processing module is configured to process the received image data into central control video data and instrument video data and send the central control video data and the instrument video data to the image conversion module;

[0008] The image conversion module is configured to receive the central control video data and the instrument video data respectively through different serializers, and serialize the central control video data and the instrument video data into serial central control data and serial instrument data respectively, and then send them to the screen display module respectively;

[0009] The screen display module is configured to receive the serial central control data and serial instrument data sent by the image conversion module, and deserialize the serial central control data and the serial instrument data and then display them.

[0010] According to another aspect of the present application, a video transmission method is provided, the method comprising:

[0011] Processing the received image data into central control video data and instrument video data through the image processing module and sending the central control video data and the instrument video data to the image conversion module;

[0012] The central control video data and the instrument video data are received respectively by different serializers of the image conversion module, and the central control video data and the instrument video data are serialized into serial central control data and serial instrument data respectively and sent to the screen display module;

[0013] The screen display module receives the serial central control data and serial instrument data sent by the image conversion module, deserializes the serial central control data and the serial instrument data, and displays them.

[0014] According to another aspect of the present application, a vehicle is provided, which comprises at least the video transmission system as described in any embodiment of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG1 is a schematic structural diagram of a video transmission system provided in Example 1 of the present application;

[0016] FIG2 is a schematic structural diagram of a video transmission system provided in an embodiment of the present application;

[0017] FIG3 is a schematic structural diagram of a video transmission system provided in Example 2 of the present application;

[0018] FIG4 is a schematic diagram of the circuit structure of a chip provided in an embodiment of the present application;

[0019] FIG5 is a schematic diagram of the circuit structure of another chip provided in an embodiment of the present application;

[0020] FIG6 is a schematic diagram of the circuit structure of another chip provided in an embodiment of the present application;

[0021] FIG7 is a flow chart of a video transmission method provided in Example 3 of the present application;

[0022] FIG8 is a schematic structural diagram of a vehicle provided in Example 4 of the present application;

[0023] FIG9 is a schematic structural diagram of another vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application. The described embodiments are only embodiments of a part of the present application, rather than all embodiments. The multiple steps described in the method implementation mode of the present application can be performed in different orders and / or in parallel. In addition, the method implementation mode may include additional steps and / or omit the steps shown. The scope of the present application is not limited in this respect.

[0025] As used herein, the term "including" and its variations are open-ended, i.e., "including but not limited to." The term "based on" means "based, at least in part, on." The term "one embodiment" means "at least one embodiment," the term "another embodiment" means "at least one additional embodiment," and the term "some embodiments" means "at least some embodiments." Other terms are defined in the following description.

[0026] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. The numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] The modifiers "a" and "a plurality" mentioned in this application are illustrative rather than restrictive, and should be understood as "one or more" unless the context indicates otherwise.

[0028] The names of the messages or information exchanged between multiple devices in the embodiments of the present application are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0029] Example 1

[0030] Figure 1 is a structural diagram of a video transmission system provided in Example 1 of the present application. The system can be used to transmit video data and display the video data on a screen. The system can be implemented by software and / or hardware and is generally integrated on a vehicle. In this embodiment, the vehicle includes: ordinary transport vehicles, special-purpose vehicles, special-purpose vehicles, etc.

[0031] As shown in FIG1 , a video transmission system provided in the first embodiment of the present application includes: an image processing module 10, an image conversion module 20, and a screen display module 30, wherein the image conversion module 20 is connected to the image processing module 10 and the screen display module 30 respectively;

[0032] The image processing module 10 is configured to process the received image data into central control video data and instrument video data and send the data to the image conversion module 20;

[0033] The image conversion module 20 is configured to receive the central control video data and the instrument video data respectively through different serializers, and serialize the central control video data and the instrument video data into serial central control data and serial instrument data respectively, and then send them to the screen display module 30 respectively;

[0034] The screen display module 30 is configured to receive the serial central control data and serial instrument data sent by the image conversion module 20 , and deserialize the serial central control data and the serial instrument data and then display them.

[0035] The image processing module 10 may be a module configured to process image data, and the image processing module 10 may acquire data that the vehicle needs to display on a screen. The image data may be data that needs to be displayed on a screen within the vehicle, and the image data may be acquired via an onboard camera, or may be data generated within the vehicle. For example, the image data may be speed data that needs to be displayed on an instrument panel while the vehicle is in motion. Depending on the display screen, the image data may be divided into central control video data and instrument panel video data. The central control video data may be data that needs to be displayed on the central control screen, and the instrument panel video data may be data that needs to be displayed on the instrument panel.

[0036] In this embodiment, the image processing module 10 can obtain image data to be displayed on the screen, and the image data can be divided into central control video data and instrument video data according to the different screens to be displayed, and the central control video data and instrument video data can be sent to the image conversion module 20. The connection method between the image processing module 10 and the image conversion module 20 is not limited in this embodiment.

[0037] The image conversion module 20 may be configured to serialize video data. The image conversion module 20 may include a serializer configured to process central control video data and a serializer configured to process instrument video data. A serializer is a digital circuit configured to convert multiple parallel inputs into a single serial output. The function of a serializer is to compress data onto a smaller transmission bandwidth, thereby increasing transmission speed and distance. The serialized central control data may be serialized central control video data, and the serialized instrument data may be serialized instrument video data.

[0038] In this embodiment, the central control video data and the instrument video data can be serialized separately by different serializers in the image conversion module 20. Serializing the central control video data to obtain serial central control data, and serializing the instrument video data to obtain serial instrument data, can then be sent to the screen display module 30. The connection method between the image conversion module 20 and the screen display module 30 is not limited in this embodiment.

[0039] The screen display module 30 may be a module configured to display video data that needs to be displayed.

[0040] In this embodiment, after receiving the serial central control data and the serial instrument data, the screen display module 30 needs to deserialize the serial central control data and the serial instrument data respectively, and display the deserialized video data on the screen.

[0041] An embodiment of the present application provides a video transmission system, comprising: an image processing module, an image conversion module, and a screen display module. The image processing module is configured to process received image data into central control video data and instrument video data and send the data to the image conversion module; the image conversion module is configured to receive the central control video data and the instrument video data respectively through two serializers, and serialize the central control video data and the instrument video data into serial central control data and serial instrument data respectively, and then send them to the screen display module; the screen display module is configured to receive the serial central control data and serial instrument data sent by the image conversion module, deserialize the serial central control data and the serial instrument data respectively, and then display them. The system processes and transmits the central control video data and the instrument video data through different serializers, which can improve the clarity and smoothness of the central control screen and the instrument screen, solving the problem of low screen clarity and smoothness.

[0042] Based on the above embodiment, a modified embodiment of the above embodiment is proposed. In order to simplify the description, only the differences from the above embodiment are described in the modified embodiment.

[0043] In one embodiment, the screen display module 30 includes at least one deserializer, at least one central control display terminal, and at least one instrument display terminal; the central control display terminal and the instrument display terminal are respectively connected to the deserializer;

[0044] The deserializer is configured to receive the serial central control data and serial instrument data sent by the image conversion module 20, deserialize the serial central control data and the serial instrument data respectively to obtain deserialized central control data and deserialized instrument data; send the deserialized central control data to the central control display terminal, and send the deserialized instrument data to the instrument display terminal.

[0045] The deserializer is the inverse of the serializer, breaking down a high-speed serial data stream into multiple parallel data streams to accommodate different computational requirements. The central control display terminal can be configured to display central control video data, while the instrument display terminal can be configured to display instrument video data. The deserialized central control data can be deserialized serial central control data, while the deserialized instrument data can be deserialized serial instrument data.

[0046] In this embodiment, the screen display module 30 can deserialize the serial central control data and serial instrument data using a deserializer to obtain deserialized central control data and deserialized instrument data, and then send the deserialized central control data to the corresponding central control display terminal, and send the deserialized instrument data to the corresponding instrument display terminal. In this embodiment, there can be one or more central control display terminals and instrument display terminals, and this embodiment does not limit this.

[0047] In this embodiment, the same deserializer can be used to process serial central control data and serial instrument data, or different deserializers can be used. When the interfaces used by the central control display terminal and the instrument display terminal are different, different deserializers need to be used to process the serial central control data and serial instrument data respectively.

[0048] For example, Figure 2 is a schematic diagram of the structure of a video transmission system provided by an embodiment of the present application. Figure 2 is only an illustrative diagram, and this embodiment does not limit the number of components. The dashed box portion of the screen display module represents another option for the deserializer chip when the central control display terminal and the instrument display terminal use different protocols.

[0049] The display terminal can choose a variety of display interfaces, such as DisplayPort (DP) / Embedded DisplayPort (eDP) or Online Data Interchange (OLDI) and other protocols, which depends on the selection of the screen. This embodiment does not limit the selection of the display terminal interface. As shown in Figure 2, the central control display terminal and the instrument display terminal can use the DP / eDP or OLDI interface to receive data. When the central control display terminal or the instrument display terminal uses the DP / eDP interface, the chip of the deserializer used by the central control display terminal or the instrument display terminal can be DS90Ux984. When the central control display terminal or the instrument display terminal uses the OLDI interface, the chip of the deserializer used by the central control display terminal or the instrument display terminal can be DS90Ux988.

[0050] In one embodiment, the deserializer includes: a first deserializer 31 and a second deserializer 32; the first deserializer 31 is connected to the central control display terminal 33, and the second deserializer 32 is connected to the instrument display terminal 34;

[0051] The first deserializer 31 is configured to receive the serial central control data sent by the image conversion module 20, deserialize the serial central control data to obtain deserialized central control data, and send the deserialized central control data to the central control display terminal 33;

[0052] The second deserializer 32 is configured to receive the serial instrument data sent by the image conversion module 20 , deserialize the serial instrument data to obtain deserialized instrument data, and send the deserialized instrument data to the instrument display terminal 34 .

[0053] The first deserializer 31 may be a deserializer configured to process data from the central control display terminal 33, and the second deserializer 32 may be a deserializer configured to process data from the instrument display terminal 34. The first deserializer 31 and the second deserializer 32 may be of the same or different types and may be configured according to actual circumstances, and this embodiment does not limit this.

[0054] In this embodiment, the screen display module 30 can process the video data of the central control display terminal 33 and the video data of the instrument display terminal 34 respectively through two deserializers.

[0055] Example 2

[0056] FIG3 is a schematic diagram of the structure of a video transmission system provided by Example 2 of the present application. This Example 2 is described based on the above-mentioned Example. For details not yet provided in this Example, please refer to Example 1.

[0057] As shown in FIG3 , a video transmission system provided in the second embodiment of the present application includes an image conversion module 20 , which includes a first serializer 21 and a second serializer 22 .

[0058] The image processing module 10 is configured to process the received image data into central control video data and instrument video data and send the central control video data and instrument video data to the image conversion module 20;

[0059] The image conversion module 20 includes a first serializer 21 and a second serializer 22;

[0060] The first serializer 21 receives the central control video data through the display port (DP), serializes the central control video data into serial central control data based on the FPD-LINK protocol, and sends the serial central control data to the screen display module 30 through alternating current (AC) coupling;

[0061] The second serializer 22 receives the instrument video data through the MIPI DSI interface, serializes the instrument video data into serial instrument data based on the FPD-LINK protocol, and sends it to the screen display module 30 through AC coupling;

[0062] The screen display module 30 is configured to receive the serial central control data and serial instrument data sent by the image conversion module 20 , and deserialize the serial central control data and the serial instrument data and then display them.

[0063] Among them, the first serializer 21 can be a serializer that processes data from the central control display terminal, and the second serializer 22 can be a serializer that processes data from the instrument display terminal. The display interface (DP) is a standardized digital video interface standard. The DP interface is free of certification and licensing fees. It is mainly used to connect video sources to devices such as displays, and also supports carrying audio, Universal Serial Bus (USB) and other forms of data. The video serial communication (Flat Panel Display Link, FPD-LINK) protocol is a high-speed digital video interface mainly used to transmit video data. The Mobile Industry Processor Interface - Display Serial Interface (MIPI-DSI) is a serial interface used for display technology. MIPI-DSI sends pixel information or instructions to peripheral devices in a serial manner, and reads status information or pixel information from peripheral devices. During the transmission process, MIPI-DSI has its own independent communication protocol, including data packet format and error correction detection mechanism.

[0064] In this embodiment, two different serializers can be used to process central control video data and instrument video data, respectively. The first serializer 21 and the second serializer 22 can use different protocols for video data interface conversion. The chip for the first serializer 21 can be DS90Ux983, and the chip for the second serializer 22 can be DS90Ux981. Figure 4 is a schematic diagram of the circuit structure of a chip provided in an embodiment of the present application, and Figure 5 is a schematic diagram of the circuit structure of another chip provided in an embodiment of the present application, wherein Figure 4 is a circuit structure diagram of the DS90Ux983, and Figure 5 is a circuit structure diagram of the DS90Ux981.

[0065] For example, as shown in FIG2 , when the chip selection of the first serializer 21 is DS90Ux983 and the chip selection of the second serializer 22 is DS90Ux981, DS90Ux981 supports two MIPI DSI inputs and two FPD-LINK IV outputs, while DS90Ux983 supports one DP interface input and two FPD-LINK IV outputs. Therefore, the first serializer DS90Ux983 can receive central control video data through one DP interface, serialize the central control video data into serial central control data based on the FPD-LINK protocol, and send it to the screen display module 30 via AC coupling; the second serializer DS90Ux981 can receive instrument video data through two MIPI DSI interfaces, serialize the instrument video data into serial instrument data based on the FPD-LINK protocol, and send it to the screen display module via AC coupling.

[0066] A video transmission system provided in Example 2 of the present application processes central control video data and instrument video data respectively through a first serializer and a second serializer, thereby improving the clarity and smoothness of the central control screen and the instrument screen, and solving the problem of low screen clarity and smoothness.

[0067] In one embodiment, the image processing module 10 includes:

[0068] The image processing unit 11 is configured to receive image data, process the image data to obtain central control video data and instrument video data, and send the central control video data and the instrument video data to the image conversion module 20 through different data interfaces.

[0069] The image processing unit 11 can be configured to process image data. The image processing unit 11 can be a system on chip (SOC). The SOC can be a dedicated integrated circuit that includes a complete system and embedded software. The data interface can be an interface for transmitting data. The SOC integrates DP and multiple MIPI DSI interfaces.

[0070] In this embodiment, the image processing unit 11 can receive image data, divide the image data into central control video data and instrument video data, and send the central control video data and instrument video data to the image conversion module 20 through different data interfaces. As shown in Figure 2, the central control video data can be sent through the DP interface, and the instrument video data can be sent through the MIPI DSI interface.

[0071] In one embodiment, the image processing unit 11 and the image conversion module 20 communicate with each other via an Inter-Integrated Circuit (I2C) protocol, and utilize general I / O ports to implement interrupt and control functions.

[0072] I2C is a general-purpose bus protocol developed by Philips, now NXP Semiconductors, for a simple, bidirectional, two-wire bus protocol standard. General-Purpose Input / Output (GPIO) is short for general-purpose input / output, used to input and output electrical signals within circuits to facilitate control of circuit components.

[0073] In this embodiment, the image processing unit 11 can communicate with the serializer in the image conversion module 20 through the I2C protocol, and can also implement interrupt and control functions through the GPIO.

[0074] In one embodiment, the image processing module 10 is further configured to:

[0075] The transparent transmission function of FPD-LINK is utilized to send control instructions to the screen display module 30 to control the screen display module 30 .

[0076] The transparent transmission function may be transparent transmission, which is transparent to the outside world during the transmission process. The transparent transmission is only responsible for transmitting the business to be transmitted to the destination node, which is equivalent to a data line or serial port line, while ensuring the quality of transmission, and does not process the transmitted business. The control instruction may be an instruction for controlling the screen display module 30.

[0077] In this embodiment, the image processing module 10 can also use the transparent transmission function of FPD-LINK to send control instructions to the screen display module 30. For example, the image processing module 10 can send an instruction to change a data to the screen display module 30, thereby changing the data in the screen display module 30.

[0078] In one embodiment, the image processing module 10 is further configured to:

[0079] Receive the display terminal information sent by the screen display module 30 to control the screen display module 30 according to the display terminal information.

[0080] The display terminal information may be information of the display terminal.

[0081] In this embodiment, the image processing module 10 can also obtain display terminal information sent by the screen display module 30, and can determine the current state of the display terminal based on the display terminal information, so that corresponding operations can be performed based on the state of the display terminal. For example, if the display terminal is determined to be erroneous based on the display terminal information, a warning can be issued to the driver.

[0082] The embodiments of the present application provide several implementation methods based on the technical solutions of the above-mentioned multiple embodiments.

[0083] As one implementation of this embodiment, as shown in Figure 2, since current smart cockpit controller SOCs generally integrate DP and multiple MIPI DSI interfaces, and SOCs can achieve functional safety on MIPI DSI, to ensure the functional safety of the instrument screen display, the DS90Ux981 solution was selected when transmitting instrument video data. The DS90Ux981 supports two MIPI DSI inputs and two FPD-LINK IV outputs. The DP interface implements the Android system (or other system) interface display. Therefore, for the central control screen, the DS90Ux983 is selected to transmit central control video data to implement the central control entertainment function. The DS90Ux983 supports one DP interface input and two FPD-LINK IV outputs.

[0084] In this embodiment, the central control video data (maximum 32.4Gbps bandwidth) can be serialized through the DS90Ux983 chip via a complete 4-lane DP interface into two FPD-LINK4 (maximum 27Gbps bandwidth) protocols and sent through AC coupling. The screen display module then uses a deserializer to deserialize the data required by the central control screen through AC coupling for display. Similarly, the instrument video data (maximum 20Gbps bandwidth) can be serialized through the DS90Ux981 chip via two complete 4-lane MIPI DSI interfaces into two FPD-LINK4 (maximum 21.6Gbps bandwidth) protocols and sent through AC coupling. The screen display module then uses a deserializer to deserialize the data required by the instrument screen through AC coupling for display. Taking 4K resolution 4096X2160 as an example, when displaying 60 frames, 30 bits of bit depth, and a blanking coefficient of 1.1, the data volume is 4096X2160X1.1X60X30≈17.5Gbit, and the maximum bandwidth of the two screen solutions is 27Gbps (central control) and 20Gbps (instrument), both of which meet the transmission requirements.

[0085] As shown in Figure 4, the DS90Ux983 supports a full 4-lane DP data interface (8.1Gbps per lane), while the DS90Ux981 supports two full 4-lane MIPI DSI interfaces (2.5Gbps per lane). Aside from the different input interface conversion protocols, the two devices utilize the same central control and instrument cluster display chips, both supporting two FPD-Link IV outputs. Communication between the SOC and the two serializers occurs via the I2C protocol, utilizing GPIOs for interrupt and control functions. FPD-Link's transparent transmission function can also be used to control and read information from remote devices.

[0086] This embodiment provides a video transmission system that can be applied to all vehicle-mounted instrument clusters and central control screens to achieve a 4K, 60Hz full HD video display solution, improving the clarity and smoothness of current vehicle-mounted instrument clusters and central control screens. This embodiment separates the video data transmission for the instrument cluster and central control screens, utilizing the FPD-LINK4-based DS90Ux983 and DS90Ux981 chips to improve the 4K, 60Hz full HD video display capabilities of vehicle-mounted instrument clusters and central control screens.

[0087] Example 3

[0088] FIG7 is a flow chart of a video transmission method provided in Example 3 of the present application. The method is applicable to transmitting video data and displaying the video data on a screen.

[0089] As shown in FIG7 , a video transmission method provided in the third embodiment of the present application includes the following steps.

[0090] S310 , processing the received image data into central control video data and instrument video data through the image processing module and sending the data to the image conversion module.

[0091] The image processing module may be a module configured to process image data, and the image processing module may obtain data to be displayed on a screen of the vehicle. The image data may be data to be displayed on a screen within the vehicle, and the image data may be obtained by an onboard camera or may be data generated within the vehicle.

[0092] In this embodiment, the image processing module can obtain image data to be displayed on the screen, and the image data can be divided into central control video data and instrument video data according to the different screens to be displayed, and the central control video data and instrument video data can be sent to the image conversion module. The connection method between the image processing module and the image conversion module is not limited in this embodiment.

[0093] S320 , receiving the central control video data and the instrument video data through different serializers of the image conversion module, and serializing the central control video data and the instrument video data into serial central control data and serial instrument data, respectively, and sending them to the screen display module.

[0094] The image conversion module can be configured to serialize video data. The image conversion module can include a serializer configured to process central control video data and a serializer configured to process instrument panel video data. A serializer is a digital circuit configured to convert multiple parallel inputs into a single serial output.

[0095] In this embodiment, the central control video data and the instrument video data can be serialized separately through different serializers in the image conversion module, and serial central control data can be obtained by serializing the central control video data, and serial instrument data can be obtained by serializing the instrument video data, and the serial central control data and serial instrument data can be sent to the screen display module.

[0096] S330: Receive the serial central control data and serial instrument data sent by the image conversion module through the screen display module, deserialize the serial central control data and the serial instrument data, and then display them. The screen display module may be a module configured to display video data to be displayed.

[0097] In this embodiment, after receiving the serial central control data and the serial instrument data, the screen display module needs to deserialize the serial central control data and the serial instrument data respectively, and display the deserialized video data on the screen.

[0098] An embodiment of the present application provides a video transmission method, which processes received image data into central control video data and instrument video data through an image processing module and sends the central control video data and instrument video data to an image conversion module; receives the central control video data and instrument video data through different serializers in the image conversion module, serializes the central control video data and instrument video data into serial central control data and serial instrument data, respectively, and sends them to a screen display module; and receives the serial central control data and serial instrument data sent by the image conversion module through a screen display module, deserializes the serial central control data and serial instrument data, and displays them. Processing and transmitting the central control video data and instrument video data through different serializers can improve the clarity and smoothness of the central control screen and instrument screen, solving the problem of low screen clarity and smoothness.

[0099] In one embodiment, the central control video data is received through the display interface DP of the first serializer, and the central control video data is serialized into serial central control data based on the FPD-LINK protocol, and sent to the screen display module through alternating current AC coupling;

[0100] The instrument video data is received through the MIPI DSI interface of the second serializer, and the instrument video data is serialized into serial instrument data based on the FPD-LINK protocol, and is sent to the screen display module through AC coupling.

[0101] The first serializer may be a serializer for processing data from a central control display terminal, and the second serializer may be a serializer for processing data from an instrument display terminal.

[0102] In this embodiment, two different serializers can be used to process the central control video data and the instrument panel video data, respectively. The first serializer and the second serializer can use different protocols for video data interface conversion. The chip for the first serializer can be DS90Ux983, and the chip for the second serializer can be DS90Ux981.

[0103] In one embodiment, the serial central control data and serial instrument data sent by the image conversion module are received through a deserializer, and the serial central control data and the serial instrument data are deserialized to obtain deserialized central control data and deserialized instrument data respectively; the deserialized central control data is sent to the central control display terminal, and the deserialized instrument data is sent to the instrument display terminal.

[0104] In this embodiment, the screen display module can deserialize the serial central control data and serial instrument data through a deserializer to obtain deserialized central control data and deserialized instrument data, and send the deserialized deserialized central control data to the corresponding central control display terminal, and send the deserialized deserialized instrument data to the corresponding instrument display terminal. In one embodiment, the serial central control data sent by the image conversion module is received through a first deserializer, the serial central control data is deserialized to obtain deserialized central control data, and the deserialized central control data is sent to the central control display terminal;

[0105] The serial instrument data sent by the image conversion module is received through a second deserializer, the serial instrument data is deserialized to obtain deserialized instrument data, and the deserialized instrument data is sent to an instrument display terminal.

[0106] The first deserializer may be configured to process data from a central control display terminal, and the second deserializer may be configured to process data from an instrument display terminal. The first and second deserializers may be of the same or different types and may be configured based on actual circumstances, and this embodiment does not limit this.

[0107] In this embodiment, the screen display module can process the video data of the central control display terminal and the video data of the instrument display terminal respectively through two deserializers.

[0108] In one embodiment, image data is received by an image processing unit, the image data is processed to obtain central control video data and instrument video data, and the central control video data and the instrument video data are sent to the image conversion module through different data interfaces.

[0109] The image processing unit may be a unit configured to process image data, and the data interface may be an interface for transmitting data.

[0110] In this embodiment, the image data may be received by the image processing unit, and the image data may be divided into central control video data and instrument video data, and the central control video data and instrument video data may be sent to the image conversion module through different data interfaces.

[0111] In one embodiment, the image processing unit and the image conversion module communicate with each other via an I2C protocol, and utilize a general I / O port to implement interrupt and control functions.

[0112] In this embodiment, the image processing unit can communicate with the serializer in the image conversion module through the I2C protocol, and can also implement interrupt and control functions through the GPIO.

[0113] In one embodiment, the transparent transmission function of FPD-LINK is used to send control instructions to the screen display module to control the screen display module.

[0114] In this embodiment, the image processing module can also use the transparent transmission function of FPD-LINK to send a control instruction to the screen display module. For example, the image processing module can send an instruction to change a data to the screen display module, thereby changing the data in the screen display module.

[0115] In one embodiment, the display terminal information sent by the screen display module is received to control the screen display module according to the display terminal information.

[0116] In this embodiment, the image processing module may also obtain the display terminal information sent by the screen display module, and may determine the current state of the display terminal according to the display terminal information, thereby performing corresponding operations according to the state of the display terminal.

[0117] Example 4

[0118] FIG8 is a schematic diagram of the structure of a vehicle provided in Example 4 of the present application. As shown in FIG8 , the vehicle includes at least the video transmission system described in any embodiment of the present application and possesses the corresponding functional modules and effects of the system. As shown in FIG9 , the vehicle includes a vehicle body, on which the video transmission system described in any embodiment of the present application is installed.

[0119] The various forms of processes shown above can be used to reorder, add, or delete steps. For example, the multiple steps described in this application can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of this application can be achieved. This document is not limited here.

[0120] The above embodiments do not limit the scope of protection of this application. Various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors.

Claims

1. A video transmission system, the system comprising: An image processing module, an image conversion module and a screen display module, wherein the image conversion module is connected to the image processing module and the screen display module respectively; The image processing module is configured to process the received image data into central control video data and instrument video data and send the central control video data and the instrument video data to the image conversion module; The image conversion module is configured to receive the central control video data and the instrument video data respectively through different serializers, and serialize the central control video data and the instrument video data into serial central control data and serial instrument data respectively, and then send them to the screen display module respectively; The screen display module is configured to receive the serial central control data and serial instrument data sent by the image conversion module, and to deserialize the serial central control data and the serial instrument data and then display them.

2. The system according to claim 1, wherein: The image conversion module includes a first serializer and a second serializer; The first serializer receives the central control video data through the display interface DP, serializes the central control video data into serial central control data based on the flat panel display link FPD-LINK protocol, and sends it to the screen display module through alternating current AC coupling; The second serializer receives the instrument video data through the mobile industry processor interface-display serial interface MIPIDSI interface, serializes the instrument video data into serial instrument data based on the FPD-LINK protocol, and sends it to the screen display module through AC coupling.

3. The system according to claim 1, wherein: The screen display module includes at least one deserializer, at least one central control display terminal and at least one instrument display terminal; the at least one central control display terminal and the at least one instrument display terminal are respectively connected to the at least one deserializer; The deserializer is configured to receive serial central control data and serial instrument data sent by the image conversion module, deserialize the serial central control data and the serial instrument data respectively to obtain deserialized central control data and deserialized instrument data; send the deserialized central control data to the central control display terminal, and send the deserialized instrument data to the instrument display terminal.

4. The system according to claim 3, wherein: The deserializer includes: a first deserializer and a second deserializer; the first deserializer is connected to the central control display terminal, and the second deserializer is connected to the instrument display terminal; The first deserializer is configured to receive the serial central control data sent by the image conversion module, deserialize the serial central control data to obtain the deserialized central control data, and send the deserialized central control data to the central control display terminal; The second deserializer is configured to receive serial instrument data sent by the image conversion module, deserialize the serial instrument data to obtain the deserialized instrument data, and send the deserialized instrument data to the instrument display terminal.

5. The system according to claim 1, wherein: The image processing module comprises: The image processing unit is configured to receive the image data, obtain the central control video data and the instrument video data after processing the image data, and send the central control video data and the instrument video data to the image conversion module through different data interfaces.

6. The system according to claim 5, wherein: The image processing unit and the image conversion module communicate with each other through the integrated circuit bus I2C protocol, and use the general purpose input and output GPIO port to realize interruption and control functions.

7. The system according to claim 1, wherein: The image processing module is further configured to: The transparent transmission function of FPD-LINK is utilized to send control instructions to the screen display module to control the screen display module.

8. The system according to claim 1, wherein: The image processing module is further configured to: The display terminal information sent by the screen display module is received to control the screen display module according to the display terminal information.

9. A video transmission method, comprising: Processing the received image data into central control video data and instrument video data through the image processing module and sending the central control video data and the instrument video data to the image conversion module; The central control video data and the instrument video data are received respectively through different serializers of the image conversion module, and the central control video data and the instrument video data are serialized into serial central control data and serial instrument data respectively and sent to the screen display module; The serial central control data and serial instrument data sent by the image conversion module are received through the screen display module, and the serial central control data and the serial instrument data are respectively deserialized and displayed.

10. A vehicle, comprising the video transmission system according to any one of claims 1 to 8.

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