A vehicle-mounted system of shared rearview module

Abstract

This invention provides a vehicle-mounted system sharing a rearview module, comprising: a rearview camera for acquiring real-time video images of the area behind the vehicle to generate and output rearview image data; a deserializer connected to the rearview camera, used to convert the received rearview image data into a different format and output the converted rearview image data; an image processing sensor connected to the deserializer, receiving the rearview image data from the deserializer; and a domain controller connected to the deserializer, used to receive the rearview image data from the deserializer. Upon wake-up of the domain controller, the deserializer and the image processing sensor are synchronously reset. Compared with existing technologies, in this invention, the electronic streaming media and the domain controller share a rearview module, and the occasional issue of the streaming media rearview mirror failing to display an image can be resolved.

Description

[Technical Field]

[0001] This utility model relates to the fields of domain control and streaming media, and in particular to an in-vehicle system with a shared rearview module. [Background Technology]

[0002] In the domain control domain, real-time image information from the rearview module is required to achieve relevant functions; in the streaming media domain, image information from the rearview module is also required to be displayed on the streaming media rearview mirror. In recent years, with the maturity of autonomous driving and electronic streaming media technologies, more and more car manufacturers have begun to equip their vehicles with these two functions. Some manufacturers experience occasional issues where the streaming media rearview mirror fails to display images after the domain controller is woken up; in such cases, restarting the vehicle is necessary to restore normal rearview mirror image display functionality.

[0003] The existing models have the following problems:

[0004] 1. High hardware costs: Many vehicle models use a separate rearview module for both electronic streaming media and domain controller, which increases the overall vehicle cost.

[0005] 2. The R&D cycle is long. Many car models use a separate rearview module for electronic streaming media and domain controller, which leads to a long R&D chain and increased R&D time.

[0006] 3. The occasional issue of the rearview mirror not displaying an image has not been completely resolved.

[0007] Therefore, it is necessary to propose a new technical solution to address the above problems. [Utility Model Content]

[0008] One of the objectives of this utility model is to provide an in-vehicle system with a shared rearview module, in which the electronic streaming media and the domain controller share the rearview module, and can solve the problem of occasional failure of the streaming media rearview mirror to display an image.

[0009] According to one aspect of this utility model, a vehicle-mounted system sharing a rearview module is provided, comprising: a rearview camera for acquiring real-time video images of the area behind the vehicle to generate and output rearview image data; a deserializer connected to the rearview camera for converting the received rearview image data into a different format and outputting the converted rearview image data; an image processing sensor connected to the deserializer for receiving rearview image data from the deserializer; and a domain controller connected to the deserializer for receiving rearview image data from the deserializer; wherein the deserializer and the image processing sensor are synchronously reset after the domain controller is woken up.

[0010] Compared with the prior art, in this utility model, the electronic streaming media and the domain controller share the rearview module, and the problem of the streaming media rearview mirror occasionally failing to display an image can be solved. [Attached Image Description]

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0012] Figure 1 This is a functional block diagram of a vehicle-mounted system with a shared rearview module in one embodiment of the present invention.

Detailed Implementation Methods

[0013] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Unless otherwise specified, the terms coupling, connection, linking, and interconnection used herein to indicate electrical connection mean direct or indirect connection. For example, A being connected to B includes both a direct electrical connection between A and B and a connection between A and B via electrical components or circuits.

[0015] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "back", "positive", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] Please refer to Figure 1 As shown, it is a functional block diagram of a vehicle-mounted system with a shared rearview module in one embodiment of the present invention. Figure 1The vehicle system with the shared rearview module shown includes a rearview camera 110, a deserializer 120, an image processing sensor (e.g., an ISP or an external ISP) 130, and a domain controller (e.g., a SOC) 140, wherein the ISP (Image Sensor Processor) is a chip that processes camera images, abbreviated as ISP.

[0017] The rearview camera 110 is used to acquire real-time video images of the rear of the vehicle to generate and output rearview image data; the deserializer 120 is connected to the rearview camera 110, and the deserializer 120 is used to convert the received rearview image data into a different format and output the converted rearview image data; the image processing sensor 130 is connected to the deserializer 120, and the image processing sensor 130 receives the rearview image data from the deserializer 120; the domain controller 140 is connected to the deserializer 120, and the domain controller 140 is used to receive the rearview image data from the deserializer 120; wherein, after the domain controller 140 is woken up, the deserializer 120 and the image processing sensor 130 are synchronously reset.

[0018] exist Figure 1 In the illustrated embodiment, the in-vehicle system with a shared rearview module provided by this utility model further includes a serializer 150 and an Inside Rear View Mirror (ISRVM) 160. The serializer 150 is connected to the image processing sensor 130, and receives and processes rearview image data from the image processing sensor 130. The ISRVM 160 is connected to the serializer 150, and receives and displays the rearview image data from the serializer 150.

[0019] exist Figure 1 In the illustrated embodiment, the deserializer 120 is connected to the rearview camera 110 via a first serial communication interface; the deserializer 120 is connected to the image processing sensor 130 via a second serial communication interface; the deserializer 120 is connected to the domain controller 140 via a second serial communication interface; the image processing sensor 130 is connected to the serializer 150 via a parallel communication interface; and the serializer 150 is connected to the domain controller 140 via a third serial communication interface.

[0020] exist Figure 1 In the specific embodiment shown, the first serial communication interface connecting the deserializer 120 and the rearview camera 110 is GMSL2. GMSL (Gigabit Multimedia Serial Link) is a high-speed serial interface launched by Maxim Integrated, suitable for the transmission of video, audio and control signals.

[0021] exist Figure 1In the specific embodiment shown, the second serial communication interface connecting the deserializer 120 and the image processing sensor 130 is MIPI; the second serial communication interface connecting the deserializer 120 and the domain controller 140 is MIPI, where MIPI (Mobile Industry Processor Interface) is a type of serial communication interface. Specifically, the interface connecting the deserializer 120 and the image processing sensor 130 is CSI-2 4xlane; the interface connecting the deserializer 120 and the domain controller 140 is CSI-2 4xlane, that is, the MIPI is CSI-2 4xlane.

[0022] exist Figure 1 In the specific embodiment shown, the parallel communication interface connecting the image processing sensor 130 and the serializer 150 is DVP, where DVP (Digital Video Port) is a parallel communication interface. The third serial communication interface connecting the serializer 150 and the domain controller 140 is FPD link, where FPD link (Flat Panel Display Link) is a serial interface protocol used to connect a display and an image sensor (such as a camera).

[0023] exist Figure 1 In the specific embodiment shown, the domain controller (e.g., SOC) 140 is a Horizon J5 chip; the image processing sensor (e.g., ISP) 130 is a GEO GW5210.

[0024] exist Figure 1 In the specific embodiment shown, the rear-view camera 110 is a Rear Camera X3C; the deserializer 120 is a DESMAX 9296A; the serializer 150 is a SER T1 933; and the streaming media rearview mirror 160 is a Display.

[0025] Figure 1 The working principle of the vehicle system with the shared rearview module shown:

[0026] Step 1: The rear-view module data is sent to the image processing sensor (e.g., external ISP) 130 and the domain controller 140 in MIPI data format via the deserializer 120 (e.g., deserializer 9296A);

[0027] Step 2: Domain controller 140 obtains data from the rearview module and performs the corresponding functions;

[0028] Step 3: The image processing sensor (e.g., external ISP) 130 is transmitted to the serializer 150 (e.g., serializer 933) in parallel via DVP.

[0029] Step 4: The serializer 150 (e.g., serializer 933) provides the streaming rearview mirror 160 in the form of an FPD link to achieve rearview image display.

[0030] Problem description:

[0031] When the domain controller 140 is woken up and the image processing sensor (e.g., ISP) 130 is in working state, the deserializer 120 (e.g., deserializer 9296A) will reset once. The deserializer 120 (e.g., deserializer 9296A) will output an incorrect MIPI waveform, causing the image processing sensor (e.g., ISP) 130 to enter an abnormal state.

[0032] Solution:

[0033] After the domain controller 140 is woken up, the domain controller 140 sends a reset command to the deserializer 120 (e.g., deserializer 9296A) to trigger the deserializer 120 (e.g., deserializer 9296A) to reset; the domain controller 140 sends a reset command to the image processing sensor (e.g., ISP) 130 to trigger the image processing sensor (e.g., ISP) 130 to reset.

[0034] In other words, after the domain controller 140 is woken up, the deserializer 120 and the image processing sensor 130 are reset synchronously. Specifically, after the deserializer 120 (e.g., deserializer 9296A) resets, the image processing sensor (e.g., ISP) 130 resets again, so that abnormal MIPI waveforms will not be detected, which can effectively prevent the rearview mirror from occasionally failing to display an image.

[0035] exist Figure 1 In the specific embodiment shown, the domain controller 140 is connected to the deserializer 120 via the first I2C bus, and the domain controller 140 sends a reset command to the deserializer 120 via the first I2C bus; the domain controller 140 is connected to the image processing sensor 130 via the second I2C bus, and the domain controller 140 sends a reset command to the image processing sensor 130 via the second I2C bus.

[0036] exist Figure 1 In the embodiment shown, the vehicle system with a shared rearview module provided by this utility model further includes a first camera 170, which is used to acquire real-time video images of a predetermined position of the vehicle to generate and output first image data; a deserializer 120 is connected to the first camera 170, which is used to convert the received first image data into a different format and output the converted first image data to the domain controller 140; the domain controller 140 obtains the first image data and performs corresponding functions.

[0037] exist Figure 1In the specific embodiment shown, the deserializer 120 and the first camera 170 are connected via a first serial communication interface; the first serial communication interface connecting the deserializer 120 and the first camera 170 is GMSL2. The first camera 170 is an F30 camera.

[0038] In summary, this utility model provides a vehicle-mounted system with a shared rearview module. The electronic streaming media and the domain controller share the rearview module. After the domain controller 140 is woken up, it sends a reset command to the deserializer 120 to trigger the deserializer 120 to reset. The domain controller 140 also sends a reset command to the image processing sensor 130 to trigger the image processing sensor 130 to reset, thereby effectively preventing the occasional failure of the rearview mirror to display an image.

[0039] It should be noted that any modifications made by those skilled in the art to the specific embodiments of this utility model do not depart from the scope of the claims of this utility model. Accordingly, the scope of the claims of this utility model is not limited to the foregoing specific embodiments.

Claims

1. A vehicle-mounted system sharing a rearview module, characterized in that, It includes: A rearview camera is used to capture real-time video images of the area behind the vehicle in order to generate and output rearview image data. A deserializer, which is connected to the rear-view camera, is used to convert the received rear-view image data into a different format and output the converted rear-view image data. An image processing sensor is connected to the deserializer, and the image processing sensor receives rear view image data from the deserializer; A domain controller connected to the deserializer, the domain controller being used to receive back view image data from the deserializer; After the domain controller is woken up, the deserializer and the image processing sensor are synchronously reset.

2. The vehicle-mounted system with a shared rearview module according to claim 1, characterized in that, It also includes: A serializer, which is connected to the image processing sensor, receives and processes rear view image data from the image processing sensor; A streaming rearview mirror is connected to the serializer, and the streaming rearview mirror receives and displays rearview image data from the serializer.

3. The vehicle-mounted system with a shared rearview module according to claim 2, characterized in that, The deserializer is connected to the rear-view camera via a first serial communication interface; The deserializer is connected to the image processing sensor via a second serial communication interface; The deserializer is connected to the domain controller via the second serial communication interface; The image processing sensor and the serializer are connected via a parallel communication interface; The serializer is connected to the domain controller via a third serial communication interface.

4. The vehicle-mounted system with a shared rearview module according to claim 3, characterized in that, The first serial communication interface is GMSL; The second serial communication interface is MIPI; The parallel communication interface is DVP; The third serial communication interface is FPD link.

5. The vehicle-mounted system with a shared rearview module according to claim 4, characterized in that, The MIPI is CSI-2 4x lane.

6. The vehicle-mounted system with a shared rearview module according to claim 1, characterized in that, The domain controller is a Horizon J5 chip; The image processing sensor is GEO's GW5210.

7. The vehicle-mounted system with a shared rearview module according to any one of claims 1-6, characterized in that, After the domain controller is woken up, The domain controller sends a reset command to the deserializer to trigger the deserializer to reset; The domain controller sends a reset command to the image processing sensor to trigger the image processing sensor to reset.

8. The vehicle-mounted system with a shared rearview module according to claim 7, characterized in that, The domain controller is connected to the deserializer via a first I2C bus, and the domain controller sends a reset command to the deserializer via the first I2C bus. The domain controller is connected to the image processing sensor via a second I2C bus, and the domain controller sends a reset command to the image processing sensor via the second I2C bus.

9. The vehicle-mounted system with a shared rearview module according to claim 1, characterized in that, It also includes a first camera. The first camera is used to capture real-time video images of the vehicle at a predetermined location to generate and output first image data; The deserializer is connected to the first camera. The deserializer is used to convert the received first image data into a different format and output the converted first image data to the domain controller.

10. The vehicle-mounted system with a shared rearview module according to claim 9, characterized in that, The deserializer is connected to the first camera via a first serial communication interface; The first serial communication interface is GMSL.

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