Simulation video injection device and method of vehicle-mounted electronic control unit

Abstract

The invention belongs to the technical field of advanced auxiliary driving, and discloses a simulation video injection device and method for a vehicle-mounted electronic control unit, and the device comprises a video interface retiming module, a programmable logic module, a processor interface to serial link module, and a storage module. When a simulation video output by a server is sent to a vehicle-mounted electronic control unit, a programmable logic module carries out protocol analysis processing, color conversion processing and format conversion processing on the simulation video so as to ensure that the simulation video has high definition and high quality; the simulation video subjected to format conversion processing is sent to the processor interface to serial link module; and the processor interface-to-serial link module sends the packaged simulation video to a vehicle-mounted electronic control unit, so that the simulation video has relatively low injection delay, and the overall verification process of an advanced auxiliary driving algorithm is further improved.

Description

Technical Field

[0001] The present application belongs to the field of advanced driver assistance technology, and in particular relates to a simulation video injection device and method for an on-vehicle electronic control unit. Background Art

[0002] With the continuous development of the field of advanced assisted driving, pure visual algorithm solutions that rely on video images captured by on-board cameras for environmental perception and decision-making have gradually become the preferred solution for most car manufacturers. They use intelligent learning algorithms to extract useful information from video images to identify road signs, pedestrians, other vehicles, traffic signals, etc., thereby realizing assisted driving functions.

[0003] Advanced driver assistance algorithms are generally unexplainable and require a lot of testing and verification. Due to the complexity and diversity of driving scenarios, scenario simulation software is usually used to build a hardware-in-the-loop HIL system or a vehicle-in-the-loop VIL system to inject the video scene simulated by the scenario simulation software into the vehicle electronic control unit (Electronic Control Unit, also known as ECU). However, when this simulated video scene is injected into the vehicle electronic control unit, on the one hand, it cannot guarantee the clarity of the video scene, and on the other hand, it cannot guarantee the delay effect of the video scene injection, which in turn affects the overall verification process of the advanced driver assistance algorithm. Summary of the invention

[0004] In order to solve the above-mentioned technical problems that when the simulated video scene is injected into the vehicle electronic control unit, the clarity of the video scene cannot be guaranteed on the one hand, and the delay effect of the video scene injection cannot be guaranteed on the other hand, thereby affecting the overall verification process of the advanced driver assistance algorithm, a simulation video injection device and method for a vehicle electronic control unit are proposed, and the technical solution is as follows: In a first aspect, an embodiment of the present application provides a simulated video injection device for an on-vehicle electronic control unit, the device comprising a video interface retiming module, a programmable logic module, a processor interface to serial link module, and a storage module, wherein: The input end of the video interface retiming module is connected to the server, and the output end of the video interface retiming module is connected to the input end of the programmable logic module; The output end of the programmable logic module is connected to the input end of the processor interface to serial link module, and the data storage end of the programmable logic module is connected to the storage module; The output end of the processor interface to serial link module is connected to the vehicle-mounted electronic control unit to send the simulation video output by the server to the vehicle-mounted electronic control unit.

[0005] In an optional solution of the first aspect, the programmable logic module includes a video interface protocol parsing unit, a color space conversion unit, and a processor interface sending unit, wherein: The input end of the video interface protocol analysis unit is connected to the output end of the video interface retiming module, and the output end of the video interface protocol analysis unit is connected to the input end of the color space conversion unit; The output end of the color space conversion unit is connected to the input end of the processor interface sending unit; The output end of the processor interface sending unit is connected to the input end of the processor interface to serial link module.

[0006] In another optional scheme of the first aspect, the number of video interface retiming modules is 4, the number of video interface protocol parsing units is 4, the number of color space conversion units is 4, the number of processor interface sending units is 4, the number of processor interface to serial link modules is 4, and the number of storage modules is 4.

[0007] In yet another optional solution of the first aspect, the programmable logic module further includes a timestamp adjustment unit, and the timestamp adjustment unit is connected to each video interface protocol parsing unit.

[0008] In yet another optional solution of the first aspect, the programmable logic module further includes a synchronization trigger unit, and the synchronization trigger unit is connected to each processor interface to serial link module.

[0009] In yet another optional solution of the first aspect, the programmable logic module further includes a remote upgrade unit, and the remote upgrade unit is connected to the mobile terminal.

[0010] In yet another optional solution of the first aspect, the programmable logic module further includes a communication simulation unit, and the communication simulation unit is connected to the vehicle-mounted electronic control unit.

[0011] In yet another optional solution of the first aspect, the communication simulation unit includes a signal processing simulation element and a sensor simulation element, and the signal processing simulation element and the sensor simulation element are respectively connected to the vehicle-mounted electronic control unit.

[0012] In yet another optional solution of the first aspect, the processor interface to serial link module includes a max9295 serializer chip.

[0013] In a second aspect, an embodiment of the present application provides a method for injecting a simulated video of an on-vehicle electronic control unit, which is applied to a simulated video injection device of an on-vehicle electronic control unit provided by the first aspect or any optional solution of the first aspect, and the method includes: When the input end of the video interface retiming module receives the simulated video output by the server, the video interface retiming module performs retiming processing on the simulated video, and the output end of the video interface retiming module sends the simulated video after retiming processing to the input end of the programmable logic module; The programmable logic module performs protocol analysis on the simulation video after the retiming process, and the data storage end of the programmable logic module sends the simulation video after the protocol analysis process to the storage module; The storage module sends the simulated video after the protocol analysis to the programmable logic module, and the programmable logic module performs color conversion on the simulated video after the protocol analysis; The programmable logic module performs format conversion processing on the simulated video after the color conversion processing, and the output end of the programmable logic module sends the simulated video after the format conversion processing to the input end of the processor interface to serial link module; The processor interface to serial link module encapsulates the simulated video after the format conversion, and the output end of the processor interface to serial link module sends the encapsulated simulated video to the vehicle electronic control unit.

[0014] Beneficial effects of this application: By constructing a simulation video injection device including a video interface retiming module, a programmable logic module, a processor interface to serial link module and a storage module, when the simulation video output by the server is sent to the vehicle-mounted electronic control unit, the programmable logic module can perform protocol parsing, color conversion and format conversion on the simulation video to ensure that the simulation video has high definition and high quality, and send the simulation video after format conversion to the processor interface to serial link module; then the processor interface to serial link module sends the packaged simulation video to the vehicle-mounted electronic control unit, so that the simulation video has a lower injection delay, thereby improving the overall verification process of the advanced driver assistance algorithm. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic structural diagram of a simulated video injection device for a vehicle-mounted electronic control unit provided in an embodiment of the present application; Figure 2A schematic diagram of a circuit diagram of a part of a programmable logic module connected to a video interface retiming module provided in an embodiment of the present application; Figure 3 A schematic diagram of another part of a circuit of a programmable logic module connected to a video interface retiming module provided in an embodiment of the present application; Figure 4 A schematic diagram of a circuit diagram of a part of a programmable logic module connected to a storage module provided in an embodiment of the present application; Figure 5 A schematic diagram of another part of a circuit of a programmable logic module connected to a storage module provided in an embodiment of the present application; Figure 6 A schematic diagram of a part of a circuit of a programmable logic module connected to a processor interface to a serial link module provided in an embodiment of the present application; Figure 7 A schematic diagram of another part of a circuit of a programmable logic module connected to a processor interface to a serial link module provided in an embodiment of the present application; Figure 8 A structural schematic diagram of another simulated video injection device for an on-vehicle electronic control unit provided in an embodiment of the present application; Fig. 9 A schematic diagram of a part of a circuit of a programmable logic module connected to a remote upgrade unit provided in an embodiment of the present application; Fig.10 A schematic diagram of another part of a circuit of a programmable logic module connected to a remote upgrade unit provided in an embodiment of the present application; Fig.11 An overall flow chart of a simulation video injection method for a vehicle-mounted electronic control unit provided in an embodiment of the present application. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0018] In the following introduction, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The following introduction provides multiple embodiments of the present application, and different embodiments can be replaced or combined, so the present application can also be considered to include all possible combinations of the same and / or different embodiments recorded. Therefore, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then the present application should also be considered to include embodiments containing one or more of all other possible combinations of A, B, C, and D, although the embodiment may not be clearly recorded in the following text.

[0019] The following description provides examples and does not limit the scope, applicability or examples set forth in the claims. Changes may be made to the functions and arrangements of the elements described without departing from the scope of the present application. Various processes or components may be appropriately omitted, substituted or added to each example. For example, the described method may be performed in an order different from the order described, and various steps may be added, omitted or combined. In addition, features described in some examples may be combined in other examples.

[0020] See also Figure 1 , Figure 1 A structural schematic diagram of a simulation video injection device for a vehicle-mounted electronic control unit provided in an embodiment of the present application is shown.

[0021] like Figure 1 As shown, the simulated video injection device of the vehicle-mounted electronic control unit may include at least a video interface retiming module, a programmable logic module, a processor interface to serial link module and a storage module, wherein: The video interface retiming module can be understood as a high-definition multimedia interface retiming module (i.e., an HDMI retiming module), the input end of which is connected to the server, and the output end of which is connected to the input end of the programmable logic module. Here, the server may be installed with scene simulation software for simulating simulated video scenes, so as to simulate multiple simulated video scenes according to the test requirements of the advanced driver assistance algorithm, and send the multiple simulated video scenes to the input end of the video interface retiming module through the graphics card.

[0022] It is understandable that after receiving one or more simulated videos, the video interface retiming module can retime and regenerate the one or more simulated videos to ensure the integrity and stability of each simulated video during transmission, thereby reducing the signal attenuation and interference of each simulated video, and achieving the purpose of ensuring that each simulated video has high definition and high quality. It should be noted that the number of video interface retiming modules mentioned in the embodiment of the present application can be but is not limited to one or more, and when the number of the video interface retiming modules is multiple, multiple simulated videos can be synchronously retimed and regenerated to simulate the training scenario of an advanced driver assistance vehicle when multiple cameras are in working state at the same time, and the circuit structure and working principle corresponding to each video interface retiming module can refer to the technical means known in the art, but will not be elaborated here.

[0023] Also see here Figure 2 A schematic diagram of a part of a circuit of a programmable logic module connected to a video interface retiming module provided by an embodiment of the present application is shown, and Figure 3FIG. 2 is another circuit diagram of a programmable logic module connected to a video interface retiming module provided by an embodiment of the present application. Figure 2 as well as Figure 3 As shown, pins with the name "HDMI" included in some chips in the programmable logic module can be connected to the HDMI interface included in the video interface retiming module.

[0024] The programmable logic module can be understood as a Field-Programmable Gate Array (FPGA), which can be but is not limited to xczu7ev-ffvc1156-2-i series chips (or xcz11ev series chips, etc.). The output end of the programmable logic module is connected to the input end of the processor interface to serial link module, and the data storage end of the programmable logic module is connected to the storage module. It can be understood that when the input end of the programmable logic module receives one or more simulated videos output by the video interface retiming module, the programmable logic module can, but is not limited to, perform HDMI protocol parsing on each simulated video. This method can achieve effective reception and parsing of simulated videos of different formats, satisfying the injection of simulated video sources of ultra-high-definition 4K cameras on the market. For example, it can parse simulated videos in the format of 4K@30RGB888 (that is, simulated videos with 4K resolution, 30 frames per second refresh rate, and each pixel represented by 24 bits), and can achieve 24Gbps bandwidth video image reception, and can send each simulated video after protocol parsing to the storage module through the data storage end of the programmable logic module, so that the storage module can temporarily store each simulated video after protocol parsing, and can provide sufficient and flexible processing time for subsequent video processing. Here, the storage module can be but is not limited to the fourth generation double data rate memory, that is, DDR4 (the read and write bandwidth can reach 100Gbps). In addition to temporarily storing each simulated video after protocol parsing, each simulated video after protocol parsing can also be quickly read out at a designated node, and the number of the storage modules is not limited to one or more. For example, when the number of video interface retiming modules mentioned above is multiple, the number of the storage modules can be consistent with the number of the video interface retiming modules, but is not limited to this.

[0025] Also see here Figure 4 A schematic diagram of a part of a circuit of a programmable logic module connected to a storage module provided by an embodiment of the present application is shown, and Figure 5 FIG. 2 is another circuit diagram of a programmable logic module connected to a storage module according to an embodiment of the present application. Figure 4 as well as Figure 5As shown, the storage module includes four fourth-generation double data rate memories, and some chips in the programmable logic module include pins named "PS_DDR4" that can be connected to each fourth-generation double data rate memory.

[0026] Next, after the storage module outputs each simulated video after the protocol parsing process to the programmable logic module, the programmable logic module can also perform color conversion processing on each simulated video after the protocol parsing process, for example but not limited to converting the simulated video in the RGB color space into a simulated video in RAW format or a simulated video in YUV format, and can perform format conversion processing on each simulated video after the color conversion process to convert the format of each simulated video into the standard MIPI format.

[0027] Next, after performing format conversion processing on each simulation video, the programmable logic module may also output each simulation video after format conversion processing to the processor interface to serial link module through the output end of the programmable logic module.

[0028] It should be noted that when the number of the video interface retiming modules mentioned above is multiple, the programmable logic module can simultaneously receive the simulation videos output by multiple video interface retiming modules, and then can, but is not limited to, simultaneously perform HDMI protocol parsing on the simulation videos output by each video interface retiming module, so as to send each simulation video after the protocol parsing process to the corresponding storage module for temporary storage, and can simultaneously perform color conversion on each simulation video after the protocol parsing process, and can simultaneously perform format conversion on each simulation video after the color conversion process, and can also simultaneously output each simulation video after the format conversion process to the processor interface to serial link module, so as to further simulate the training scenario of advanced driver assistance vehicles when multiple cameras are in working state at the same time.

[0029] The processor interface to serial link module can be understood as a mobile industry processor interface to gigabit multimedia serial link module, which can include but is not limited to a max9295 serializer chip (or a max96717f serializer chip) and a power management circuit, and the output end of the processor interface to serial link module is connected to the vehicle electronic control unit. It can be understood that when the input end of the processor interface to serial link module receives one or more simulated videos after format conversion output by the output end of the programmable logic module, the processor interface to serial link module can encapsulate each simulated video after format conversion to encapsulate each simulated video into a serial data stream, and can send all serial data streams to the vehicle electronic control unit through a FAKRA-C connector, but is not limited to, so that the advanced driver assistance algorithm in the vehicle electronic control unit is trained and verified according to each serial data stream.

[0030] It should be noted that when the number of the video interface retiming modules mentioned above is multiple, the processor interface to serial link module can, but is not limited to, receive multiple simulation videos after format conversion that are simultaneously output by the programmable logic module, so as to simultaneously encapsulate each simulation video after format conversion to obtain a corresponding serial data stream, and all serial data streams can be sent to the on-board electronic control unit at the same time to ensure the time synchronization of all simulation videos.

[0031] Also see here Figure 6 A schematic diagram of a part of a circuit of a programmable logic module connected to a processor interface to a serial link module provided in an embodiment of the present application is shown, and Figure 7 FIG. 2 is another circuit diagram of a programmable logic module connected to a processor interface to a serial link module provided in an embodiment of the present application. Figure 6 as well as Figure 7 As shown, the processor interface to serial link module includes a max9295 serializer chip and a power management circuit, and pins with the name "DPHY" included in some chips in the programmable logic module can be connected to the max9295 serializer chip and the power management circuit.

[0032] See also Figure 8 , Figure 8 A structural schematic diagram of another simulated video injection device for a vehicle-mounted electronic control unit provided in an embodiment of the present application is shown.

[0033] like Figure 8 As shown, the programmable logic module may include a video interface protocol parsing unit, a color space conversion unit, and a processor interface sending unit, wherein: The input end of the video interface protocol parsing unit is connected to the output end of the video interface retiming module, and the output end of the video interface protocol parsing unit is connected to the input end of the color space conversion unit, so as to perform HDMI protocol parsing processing on one or more simulated videos outputted by the output end of the video interface retiming module; The output end of the color space conversion unit is connected to the input end of the processor interface sending unit to perform color conversion processing on one or more simulated videos after the protocol parsing processing, for example but not limited to converting one or more simulated videos in RGB color space into simulated videos in RAW format or simulated videos in YUV format; The output end of the processor interface sending unit is connected to the input end of the processor interface to serial link module to perform format conversion processing on one or more simulation videos after color conversion processing, for example, the format of each simulation video can be converted into a standard MIPI format.

[0034] It should be noted that the circuit structures and programming control programs corresponding to the above-mentioned video interface protocol parsing unit, color space conversion unit, and processor interface sending unit can all refer to technical means well known in the art and will not be elaborated here.

[0035] In an embodiment of the present application, the number of video interface retiming modules is 4, the number of video interface protocol parsing units is 4, the number of color space conversion units is 4, the number of processor interface sending units is 4, the number of processor interface to serial link modules is 4, and the number of storage modules is 4, which means that 4-channel simulated video injection into the vehicle-mounted electronic control unit is supported, which not only breaks the bottleneck of only being able to achieve 2-channel simulated video analysis, but also supports parallel expansion to 24-channel simulated video injection into the vehicle-mounted electronic control unit. On the basis of simulating the training scenario of an advanced driver assistance car when multiple cameras are in working state at the same time, the overall delay is further controlled to not exceed 1ms, thereby realizing the real-time performance of the constructed hardware-in-the-loop HIL system or the vehicle-in-the-loop VIL system.

[0036] As an option of the embodiment of the present application, Figure 8 As shown, the programmable logic module also includes a timestamp adjustment unit, which can be connected to the four video interface protocol analysis units to adjust the delay of the simulated video after the protocol analysis processing output by each video interface protocol analysis unit, so as to ensure the time consistency of each simulated video. It can be understood that the timestamp adjustment unit can be built with a preset programming control program. After collecting the timestamp of each simulated video, it can be but not limited to combining the preset algorithm and all timestamps to obtain a standard timestamp (such as a mean algorithm or a median algorithm), and send the standard timestamp to each video interface protocol analysis unit, so that each video interface protocol analysis unit adjusts the output time of the simulated video after the corresponding protocol analysis processing according to the standard timestamp to ensure the output delay consistency of all simulated videos after the protocol analysis processing.

[0037] As another option of the embodiment of the present application, Figure 8 As shown, the programmable logic module also includes a synchronization trigger unit, which is connected to four processor interface to serial link modules to send four identical trigger signals to the four processor interface to serial link modules according to a preset programming control program, so that after each processor interface to serial link module generates a serial data stream, the corresponding serial data stream is sent to the vehicle-mounted electronic control unit at the same time, thereby ensuring the time synchronization of each simulation video.

[0038] As another option of the embodiment of the present application, Figure 8As shown, the programmable logic module also includes a remote upgrade unit, which can be connected to a mobile terminal (or a PC terminal) to receive and parse the network port protocol of the mobile terminal according to a preset programming control program, and automatically solidify the parsed code into the FLASH on one side of the programmable logic module, so that it can be automatically loaded when the programmable logic module is started next time.

[0039] Also see here Fig. 9 A schematic diagram of a part of a circuit of a programmable logic module connected to a remote upgrade unit provided in an embodiment of the present application is shown, and Fig.10 Another circuit diagram of a programmable logic module connected to a remote upgrade unit provided by an embodiment of the present application is shown. Fig. 9 as well as Fig.10 As shown, the pins named "ETH" included in some chips in the programmable logic module can be connected to the ETH interface included in the remote upgrade unit.

[0040] As another optional embodiment of the present application, the programmable logic module also includes a communication simulation unit, which is connected to the vehicle-mounted electronic control unit to simulate the serial communication data between the vehicle-mounted electronic control unit and the vehicle-mounted camera according to a preset programming control program, and send the serial communication data to the vehicle-mounted electronic control unit so that the vehicle-mounted electronic control unit mistakenly believes that it is in a normal communication process.

[0041] Here, the communication simulation unit can be divided into a signal processing simulation element and a sensor simulation element. The signal processing simulation element can be understood as an ISP simulation element, which simulates the I2C communication process between the real ISP chip and the vehicle-mounted electronic control unit according to a preset Verilog programming control program; the sensor simulation element can be understood as a SENSOR simulation element, which simulates the I2C communication process between the real SENSOR chip and the vehicle-mounted electronic control unit according to a preset Verilog programming control program.

[0042] See also Fig.11 , Fig.11 An overall flow chart of a simulation video injection method for a vehicle-mounted electronic control unit provided in an embodiment of the present application is shown.

[0043] like Fig.11 As shown, the simulated video injection method of the vehicle-mounted electronic control unit can be applied to the simulated video injection device of the vehicle-mounted electronic control unit mentioned in one or more embodiments above, and the simulated video injection method of the vehicle-mounted electronic control unit can at least include the following steps: Step 1102: When the input end of the video interface retiming module receives the simulated video output by the server, the video interface retiming module retimes the simulated video, and the output end of the video interface retiming module sends the retimed simulated video to the input end of the programmable logic module.

[0044] Step 1104: the programmable logic module performs protocol parsing on the simulated video after the retiming process, and the data storage end of the programmable logic module sends the simulated video after the protocol parsing process to the storage module.

[0045] Step 1106: The storage module sends the simulated video after the protocol parsing process to the programmable logic module, and the programmable logic module performs color conversion on the simulated video after the protocol parsing process.

[0046] Step 1108: The programmable logic module performs format conversion on the simulated video after the color conversion processing, and the output end of the programmable logic module sends the simulated video after the format conversion processing to the input end of the processor interface to serial link module.

[0047] Step 1110: The processor interface to serial link module encapsulates the simulated video after the format conversion, and the output end of the processor interface to serial link module sends the encapsulated simulated video to the vehicle electronic control unit.

[0048] It can be understood that all the above steps can refer to the description of the simulation video injection device of the vehicle-mounted electronic control unit mentioned in one or more of the above embodiments, and will not be described in detail here.

[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A simulation video injection device for an on-vehicle electronic control unit, characterized in that: The device comprises a video interface retiming module, a programmable logic module, a processor interface to serial link module and a storage module, wherein: The input end of the video interface retiming module is connected to the server, and the output end of the video interface retiming module is connected to the input end of the programmable logic module; The output end of the programmable logic module is connected to the input end of the processor interface to serial link module, and the data storage end of the programmable logic module is connected to the storage module; The output end of the processor interface to serial link module is connected to the vehicle-mounted electronic control unit to send the simulation video output by the server to the vehicle-mounted electronic control unit.

2. The device according to claim 1, characterized in that The programmable logic module includes a video interface protocol parsing unit, a color space conversion unit and a processor interface sending unit, wherein: The input end of the video interface protocol parsing unit is connected to the output end of the video interface retiming module, and the output end of the video interface protocol parsing unit is connected to the input end of the color space conversion unit; The output end of the color space conversion unit is connected to the input end of the processor interface sending unit; The output end of the processor interface sending unit is connected to the input end of the processor interface to serial link module.

3. The device according to claim 2, characterized in that The number of the video interface retiming modules is 4, the number of the video interface protocol parsing units is 4, the number of the color space conversion units is 4, the number of the processor interface sending units is 4, the number of the processor interface to serial link modules is 4, and the number of the storage modules is 4.

4. The device according to claim 3, characterized in that The programmable logic module further includes a timestamp adjustment unit, and the timestamp adjustment unit is connected to each of the video interface protocol parsing units.

5. The device according to claim 3, characterized in that The programmable logic module further includes a synchronization trigger unit, and the synchronization trigger unit is connected to each of the processor interface to serial link modules.

6. The device according to claim 3, characterized in that The programmable logic module further includes a remote upgrade unit, and the remote upgrade unit is connected to the mobile terminal.

7. The device according to claim 1, characterized in that The programmable logic module also includes a communication simulation unit, which is connected to the vehicle-mounted electronic control unit.

8. The device according to claim 7, characterized in that The communication simulation unit includes a signal processing simulation element and a sensor simulation element, and the signal processing simulation element and the sensor simulation element are respectively connected to the vehicle-mounted electronic control unit.

9. The device according to claim 1, characterized in that The processor interface to serial link module includes a max9295 serializer chip.

10. A simulation video injection method applied to the simulation video injection device of the vehicle-mounted electronic control unit according to any one of claims 1 to 9, characterized in that: include: When the input end of the video interface retiming module receives the simulation video output by the server, the video interface retiming module performs retiming processing on the simulation video, and the output end of the video interface retiming module sends the simulation video after retiming processing to the input end of the programmable logic module; The programmable logic module performs protocol parsing on the simulation video after the retiming process, and the data storage end of the programmable logic module sends the simulation video after the protocol parsing process to the storage module; The storage module sends the simulation video after the protocol analysis to the programmable logic module, and the programmable logic module performs color conversion on the simulation video after the protocol analysis; The programmable logic module performs format conversion processing on the simulated video after the color conversion processing, and the output end of the programmable logic module sends the simulated video after the format conversion processing to the input end of the processor interface to serial link module; The processor interface to serial link module encapsulates the simulated video after the format conversion, and the output end of the processor interface to serial link module sends the encapsulated simulated video to the vehicle-mounted electronic control unit.

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