Electronic rearview mirror system and vehicle

By using multiple rearview cameras and rearview mirrors in the electronic rearview mirror system and using the FPGA architecture for parallel configuration, the problem of blind spots in the field of view in severe weather is solved, and the rapid start-up is achieved, improving driving safety.

CN119796062APending Publication Date: 2025-04-11BYD CO LTD
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Patent Information

Application Number
CN202411678119.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-04-11

AI Technical Summary

Technical Problem

Traditional car rearview mirrors have blind spots in the field of vision at night, rainy and foggy days and snowy days, which affects driving safety, and the electronic rearview mirror has a long start time.

Method used

An electronic rearview mirror system is designed, which adopts at least two rearview cameras and at least two rearview mirrors, and is configured in parallel through an FPGA architecture, including a control module, a receiving module and a transmitting module. The main deserializer and the main serializer are used for data transmission to ensure that all rearview mirrors are configured simultaneously when powered on.

Benefits of technology

It realizes the rapid configuration of all rearview mirrors when powered on, significantly reducing the startup time, providing a wide field of view, and improving driving safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an electronic rearview mirror system and a vehicle. The electronic rearview mirror system comprises at least two rearview cameras and at least two rearview mirrors, and the at least two rearview cameras are in one-to-one correspondence with the at least two rearview mirrors; the FPGA architecture comprises a control module, at least two receiving modules and at least two transmitting modules, and the at least two rear-view cameras are connected to the at least two receiving modules in parallel in a one-to-one correspondence manner through a main deserializer; the at least two receiving modules and the at least two transmitting modules are connected to the control module in parallel, and the at least two transmitting modules are connected to the at least two rearview mirrors in parallel in a one-to-one correspondence mode through a main serializer. According to the electronic rearview mirror system, all rearview mirrors can be configured at the same time, so that the startup time is greatly shortened, and quick startup is realized.
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Description

Technical Field

[0001] The present invention relates to the technical field of electronic rearview mirror systems, and in particular to an electronic rearview mirror system and a vehicle having the electronic rearview mirror system. Background Art

[0002] Traditional car rearview mirrors are easily restricted by external conditions such as mirror curvature, weather, and light intensity. There are inevitably blind spots in the field of vision, such as being unable to see at night, unclear in rainy and foggy days, and glaring in snowy days, which poses a safety hazard to driving. With the development of the automobile industry, electronic rearview mirrors have been developed to enhance and expand the driver's field of vision.

[0003] In the related art, the traditional electronic rearview mirror uses a SOC system, which has a long startup time and there is room for improvement. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an electronic rearview mirror system, which can configure all rearview mirrors at the same time, thereby greatly reducing the startup time and achieving rapid startup.

[0005] According to an embodiment of the present invention, the electronic rearview mirror system includes: at least two rearview cameras and at least two rearview mirrors, wherein the at least two rearview cameras correspond one-to-one to the at least two rearview mirrors; and an FPGA architecture, wherein the FPGA architecture includes a control module, at least two receiving modules and at least two transmitting modules, wherein the at least two rearview cameras are connected in parallel to the at least two receiving modules in a one-to-one correspondence via a main deserializer, the at least two receiving modules and the at least two transmitting modules are respectively connected in parallel to the control module, and the at least two transmitting modules are connected in parallel to the at least two rearview mirrors in a one-to-one correspondence via a main serializer.

[0006] According to the electronic rearview mirror system of the embodiment of the present invention, by setting up multiple rearview cameras and rearview mirrors, the images captured by the rearview cameras can be displayed on the rearview mirrors accordingly, which can provide the driver with a wide field of view and improve driving safety; by setting up an FPGA architecture and performing parallel configuration between the main serializer and the main deserializer through the RTL circuit inside the FPGA, when the system is turned on, all rearview mirrors can be configured at the same time, thereby greatly reducing the startup time and achieving rapid startup.

[0007] According to the electronic rearview mirror system of some embodiments of the present invention, the FPGA architecture also includes a frame writing module and a frame reading module, at least two of the receiving modules are connected in parallel to the control module through the frame writing module, and at least two of the transmitting modules are connected in parallel to the control module through the frame reading module.

[0008] According to some embodiments of the electronic rearview mirror system of the present invention, the electronic rearview mirror system also includes a storage chip, which is connected to the control module. The control module is used to store the frame write data of the frame write module in the storage chip, and the control module is used to send the frame write data stored in the storage chip to the frame read module.

[0009] According to the electronic rearview mirror system of some embodiments of the present invention, the control module is configured to send a previous frame of data of the storage chip to the frame reading module while acquiring a subsequent frame of data from the frame writing module.

[0010] According to the electronic rearview mirror system of some embodiments of the present invention, the control module is configured as a DDR3 control module; and the memory chip is configured as a DDR3 chip.

[0011] According to the electronic rearview mirror system of some embodiments of the present invention, the FPGA architecture also includes a configuration module, which is serially connected between the main deserializer and the main serializer, and the configuration module is used to configure the main deserializer and the main serializer accordingly when the electronic rearview mirror system is turned on.

[0012] According to the electronic rearview mirror system of some embodiments of the present invention, the rearview camera is provided with a built-in serializer, and the rearview camera is connected to the main deserializer through the built-in serializer; the rearview mirror is provided with a built-in deserializer, and the rearview mirror is connected to the main serializer through the built-in deserializer.

[0013] According to the electronic rearview mirror system of some embodiments of the present invention, the number of the rearview cameras is the same as the number of the rearview mirrors, and at least two of the rearview cameras correspond to at least two of the rearview mirrors in a one-to-one manner.

[0014] According to the electronic rearview mirror system of some embodiments of the present invention, the receiving module is configured as a mipi receiving module; and the transmitting module is configured as an LVDS receiving module.

[0015] The present invention also provides a vehicle.

[0016] A vehicle according to an embodiment of the present invention comprises the electronic rearview mirror system described in any one of the above embodiments.

[0017] According to some embodiments of the present invention, in a vehicle, there are three rearview mirrors, namely, a built-in rearview mirror, a left rearview mirror, and a right rearview mirror; there are three rearview mirror cameras, namely, a built-in camera, a left exterior camera, and a right exterior camera; a left exterior rearview mirror and a right exterior rearview mirror are provided on the outside of the vehicle; wherein, the left exterior camera is provided on the left exterior rearview mirror, the right exterior camera is provided on the right exterior rearview mirror, and the built-in camera mirror is provided on the shark fin of the vehicle.

[0018] The advantages of the vehicle and the above-mentioned electronic rearview mirror system over the prior art are the same and will not be described in detail here.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 2 is a schematic diagram of the principle of an electronic rearview mirror system according to an embodiment of the present invention.

[0022] Reference numerals:

[0023] Electronic rearview mirror system 100,

[0024] Rear view camera 1, built-in camera 11, left exterior camera 12, right exterior camera 13, built-in serializer 14,

[0025] Rearview mirror 2, built-in rearview mirror 21, left rearview mirror 22, right rearview mirror 23, built-in deserializer 24,

[0026] FPGA architecture 3, control module 31, receiving module 32, transmitting module 33, frame writing module 34, frame reading module 35, configuration module 36,

[0027] A main deserializer 41 , a main serializer 42 , and a storage chip 43 . DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Reference below Figure 1 The electronic rearview mirror system 100 according to an embodiment of the present invention is described. The electronic rearview mirror system 100 can configure all rearview mirrors 2 at the same time, thereby greatly reducing the startup time and achieving rapid startup.

[0032] like Figure 1 As shown, an electronic rearview mirror system 100 according to an embodiment of the present invention includes: at least two rearview cameras 1, at least two rearview mirrors 2 and an FPGA architecture 3.

[0033] At least two rearview cameras 1 correspond one to one with at least two rearview mirrors 2, that is, two, three or more rearview cameras 1 and rearview mirrors 2 can be set. The rearview camera 1 is installed toward the rear side of the vehicle and is used to capture environmental image information behind and around the vehicle. Setting up multiple rearview cameras 1 can cover a wider field of view, thereby providing observation image information from more angles. The rearview mirror 2 is used to display image data captured by the rearview camera 1. The number of rearview mirrors 2 can correspond to the rearview camera 1, so that the image information captured by each rearview camera 1 can be displayed on each rearview mirror 2, ensuring that the driver can observe everything and improve driving safety.

[0034] It can be understood that the rearview mirror 2 in the present invention refers to an electronic display screen that can clearly display the image captured by the rearview camera 1. In practice, the rearview camera 1 can be installed at the position of a traditional exterior rearview mirror.

[0035] The FPGA architecture 3 is a hardware platform that allows users to configure functions according to their needs through its programmability to implement integrated circuits with specific functions. The FPGA architecture 3 includes a control module 31, at least two receiving modules 32 and at least two transmitting modules 33. That is, the FPGA architecture 3 may include two, three or more transmitting modules 33 and receiving modules 32 to achieve data transmission and reception between multiple rearview cameras 1 and rearview mirrors 2, wherein the receiving module 32 is used to receive image data captured by the rearview camera 1 and convert it into a format that can be processed within the FPGA architecture 3, the control module 31 is used to cache and process the received image data and control data exchange between various modules, and the transmitting module 33 is used to send the processed image data to the rearview mirror 2 to display it on the rearview mirror 2 for the driver's observation.

[0036] Furthermore, at least two rear-view cameras 1 are connected in parallel to at least two receiving modules 32 in a one-to-one correspondence through a main deserializer 41. The main deserializer 41 is used to convert the high-speed serial data transmitted by the rear-view camera 1 into parallel data that can be processed within the FPGA architecture 3, that is, each rear-view camera 1 is connected to a rear-view camera 1 through the main deserializer 41, thereby realizing parallel data reception, improving data reception speed, and ensuring that the data of each rear-view camera 1 can be independently received and processed.

[0037] Furthermore, at least two receiving modules 32 and at least two transmitting modules 33 are respectively connected in parallel to the control module 31, that is, each receiving module 32 is connected in parallel to the control module 31, so that the control module 31 can process data from multiple receiving modules 32 at the same time to achieve data aggregation, processing and control, and each transmitting module 33 is connected in parallel to the control module 31, so that the control module 31 can distribute the processed data to the corresponding transmitting module 33 for transmission as needed; at least two transmitting modules 33 are connected in parallel to at least two rearview mirrors 2 one by one through a main serializer 42, and the main serializer 42 is used to convert the parallel data processed by the FPGA architecture 3 back into high-speed serial data for transmission to the rearview mirror 2, that is, each transmitting module 33 is connected to a rearview mirror 2 through the main serializer 42, thereby realizing serialized transmission of data, improving the data reception speed, and ensuring that each rearview mirror 2 can receive independent and correct data and display it.

[0038] Therefore, through the parallel connection of multiple receiving modules 32 and transmitting modules 33, high-speed data processing and transmission are achieved, and the accurate transmission and synchronization of data are ensured through the use of the main deserializer 41 and the main serializer 42. In actual design, the main serializer 42 and the main deserializer 41 can be configured in parallel through the RTL circuit inside the FPGA architecture 3.

[0039] It should be noted that the traditional serializer and deserializer configurations all rely on the internal SOC or FPGA internal ARM core for serial configuration, that is, when starting up, each needs to be configured separately, which slows down the startup time. The present invention performs parallel configuration between the main serializer 42 and the main deserializer 41 through the RTL circuit inside the FPGA, that is, when starting up, all rearview mirrors 2 can be configured at the same time, thereby greatly reducing the startup time and achieving rapid startup.

[0040] According to the electronic rearview mirror system 100 of the embodiment of the present invention, by setting up multiple rearview cameras 1 and rearview mirrors 2, the image captured by the rearview camera 1 can be displayed on the rearview mirror 2 accordingly, which can provide the driver with a wide field of view and improve driving safety; by setting up an FPGA architecture 3 and performing parallel configuration between the main serializer 42 and the main deserializer 41 through the RTL circuit inside the FPGA, when the system is turned on, all the rearview mirrors 2 can be configured at the same time, thereby greatly reducing the startup time and achieving rapid startup.

[0041] In some embodiments, Figure 1 As shown, the FPGA architecture 3 also includes a frame writing module 34 and a frame reading module 35. At least two receiving modules 32 are connected in parallel to the control module 31 through the frame writing module 34, and at least two transmitting modules 33 are connected in parallel to the control module 31 through the frame reading module 35. That is, each receiving module 32 transmits the received image data to the frame writing module 34, so that the frame writing module 34 organizes the image data according to the frame format, and then transmits the frame writing data to the control module 31 to be stored inside the FPGA architecture 3 for subsequent processing or transmission. When the data needs to be read later, the frame reading module 35 can read the frame writing data stored in the FPGA architecture 3 and transmit it to each transmitting module 33 for serial transmission.

[0042] Therefore, frame-level processing and transmission of data are achieved through the frame writing module 34 and the frame reading module 35, which can ensure the consistency and synchronization of the data, and by connecting the receiving module 32 and the transmitting module 33 and the control module 31 in parallel, the flexibility, efficiency and synchronization of data processing and transmission are enhanced, which is conducive to improving the transmission efficiency.

[0043] In some embodiments, Figure 1As shown, the electronic rearview mirror system 100 also includes a storage chip 43, which is connected to the control module 31. The control module 31 is used to store the frame write data of the frame write module 34 in the storage chip 43, and the control module 31 is used to send the frame write data stored in the storage chip 43 to the frame read module 35.

[0044] Specifically, the storage chip 43 is a data cache and storage unit, which is used to temporarily or long-term store the frame write data processed by the frame write module 34. The frame write data is waiting to be read and displayed in the storage chip 43. The data storage capacity of the electronic rearview mirror system 100 can be expanded by increasing the capacity of the storage chip 43. In practice, after the frame write module 34 converts the image data into the frame write data, the control module 31 stores the frame write data in the storage chip 43. When it is necessary to read the frame write data stored in the storage chip 43, the control module 31 can send a read signal to the storage chip 43 to send the frame write data stored in the storage chip 43 to the frame read module 35 for reading, and then further send it to the transmitting module 33.

[0045] Therefore, through the close cooperation between the storage chip 43 and the control module 31, the frame writing module 34 and the frame reading module 35, the data storage, caching, reading and transmission functions are jointly realized. The storage chip 43 can temporarily store a large amount of data without immediate processing, so that the system can quickly access and read the data, thereby improving the real-time performance of data processing. The storage chip 43 can protect the data and avoid data loss in emergencies, thereby ensuring the stability and continuity of the system.

[0046] In some embodiments, the control module 31 is configured to send the previous frame data of the storage chip 43 to the frame reading module 35 while acquiring the next frame data of the frame writing module 34 .

[0047] Specifically, when the frame writing module 34 completes writing a frame of data, the control module 31 obtains this frame of data from the frame writing module 34 and stores it in the storage chip 43. While obtaining the next frame of data, the control module 31 reads the previous frame of data from the storage chip 43 and sends the read data to the frame reading module 35. Thus, the control module 31 can process two frames of data at the same time, that is, one frame is the next frame of data being obtained, and the other frame is the previous frame of data that has been stored and is ready to be sent, so that the control module 31 can continuously read data from the storage chip 43 and send it to the frame reading module 35, so that the data reading and writing operations are carried out continuously, which reduces the data transmission time and greatly improves the real-time and low latency of image transmission, so that the rearview mirror 2 display screen driver module can output a low-latency, high-quality, intelligently perceived video stream to the rearview mirror 2 display screen.

[0048] In practice, in order to reduce latency, two BUFFERs can be ping-pong operated in units of half a frame, that is, at the same time, the first BUFFER is responsible for collecting data and the second BUFFER is responsible for sending data. After half a frame of data is collected, the BUFFER reading and writing are switched, that is, the first BUFFER is responsible for sending data and the second BUFFER is responsible for collecting data, thereby achieving "seamless" data transmission, that is, there will be no situation where data transmission stops when reading or writing data because of the need to wait for the data to be written or read before the next operation can be performed. Therefore, the data stream frame is ping-pong operated using double buffers, so that the data reading and writing operations are continuous, which improves the data transmission efficiency and real-time reading and writing, and reduces latency.

[0049] Of course, a ping-pong operation with three, four or even more BUFFERs may also be performed, which may be flexibly selected according to actual conditions and is not limited to that described in this embodiment.

[0050] In some embodiments, the control module 31 is configured as a DDR3 control module; and the memory chip 43 is configured as a DDR3 chip.

[0051] Specifically, the DDR3 control module supports high-speed data transmission and can meet the high frame rate and high-resolution image data processing requirements of the electronic rearview mirror system 100. It has a double data rate characteristic, which can further improve the data transmission efficiency. The DDR3 control module can receive and decode commands from other modules (such as the frame writing module 34) and perform corresponding operations according to the commands, thereby improving the flexibility and intelligence of the system.

[0052] The DDR3 chip has a high storage capacity and density, and can store a large amount of image data to meet the data storage needs of the electronic rearview mirror system 100. The DDR3 chip has a fast read and write speed and can quickly respond to the read and write requests of the DDR3 control module 31 to ensure real-time transmission and processing of data, so that the video stream data can be cached in the DDR3 chip. When reading is required, the data can be quickly read out of the DDR3 chip. In addition, it has low power consumption and high reliability, which can effectively maintain the normal operation of the electronic rearview mirror system 100.

[0053] Therefore, by driving the DDR3 chip through the DDR3 control module and quickly caching the image data output by the image sensor, the data transmission efficiency and low latency of the electronic rearview mirror system 100 can be further improved. At the same time, the electronic rearview mirror system 100 can process image data with higher frame rate and higher resolution, thereby improving the overall performance and reliability of the electronic rearview mirror system 100.

[0054] In some embodiments, Figure 1As shown, the FPGA architecture 3 also includes a configuration module 36, which is serially connected between the main deserializer 41 and the main serializer 42, and the configuration module 36 is used to configure the main deserializer 41 and the main serializer 42 when the electronic rearview mirror system 100 is turned on.

[0055] That is to say, the configuration module 36 can perform necessary active settings and adjustments on the main deserializer 41 and the main serializer 42. When the electronic rearview mirror system 100 is turned on, the main deserializer 41 and the main serializer 42 are configured accordingly, for example, the data transmission rate, format, direction, etc. are set, so that the main deserializer 41 and the main serializer 42 can correctly transmit and process the data according to the system requirements, thereby ensuring that the data can be correctly transmitted from the rearview camera 1 to the rearview mirror 2, thereby ensuring the normal operation of the electronic rearview mirror system 100.

[0056] In some embodiments, Figure 1 As shown, the rear-view camera 1 is provided with a built-in serializer 14, and the rear-view camera 1 is connected to the main deserializer 41 through the built-in serializer 14, that is, the image data collected by each rear-view camera 1 is first processed by the built-in serializer 14 inside it, and the parallel data is converted into a serial data stream, and then the serial data stream is transmitted from each rear-view camera 1 to the main deserializer 41 and converted back to the original parallel data format for subsequent processing.

[0057] This setting is because, in practice, the actual distance from the rearview camera 1 to the FPGA architecture 3 is relatively far, and setting the main deserializer 41 can extend the transmission distance of the image data, that is, the main deserializer 41 can play a transit role, so that the image data collected by the rearview camera 1 can be smoothly transmitted to the receiving module 32.

[0058] Furthermore, if Figure 1 As shown, the rearview mirror 2 is provided with a built-in deserializer 24, and the rearview mirror 2 is connected to the main serializer 42 through the built-in deserializer 24, that is, the main serializer 42 can convert the parallel data stream transmitted by the transmitting module 33 into a serial data stream, and then the main serializer 42 continues to transmit the serial data stream to each rearview mirror 2, and is processed by the built-in deserializer 24 inside the rearview mirror 2 to convert it back to the original parallel data format, so as to be subsequently displayed in each rearview mirror 2.

[0059] This is done because, in practice, the actual distance from the FPGA architecture 3 to the rearview mirror 2 is relatively far, and setting up the main serializer 42 can extend the transmission distance of the image data, that is, the main serializer 42 can act as a transit device, so that the image data transmitted by the transmitting module 33 can be smoothly transmitted to the rearview mirror 2.

[0060] Therefore, by setting the main deserializer 41 and the main serializer 42 and cooperating with the built-in serializer 14 and the built-in deserializer 24, it can be effectively ensured that the image data collected by each rearview camera 1 is smoothly transmitted to each rearview mirror 2, thereby ensuring the normal operation of the electronic rearview mirror system 100, and realizing an intelligent visual electronic rearview mirror system 100 that can be quickly deployed to the vehicle.

[0061] In some embodiments, the number of rearview cameras 1 is the same as the number of rearview mirrors 2 , and at least two rearview cameras 1 correspond to at least two rearview mirrors 2 in a one-to-one manner.

[0062] That is to say, the rearview camera 1 and the rearview mirror 2 are arranged correspondingly, that is, one rearview mirror 2 can display an image captured by the rearview camera 1, and multiple rearview mirrors 2 can correspondingly display images captured by multiple rearview cameras 1, thereby providing the driver with a field of view around the vehicle and improving driving safety.

[0063] Specifically, Figure 1 As shown, three rear-view cameras 1 and three rear-view mirrors 2 are provided, and the three rear-view cameras 1 and the three rear-view mirrors 2 correspond to each other one by one and are provided in parallel. Of course, in practice, the number of rear-view cameras 1 and rear-view mirrors 2 used can be flexibly set according to actual needs and is not limited to what is described in this embodiment. It can be understood that the more rear-view cameras 1 and rear-view mirrors 2 are provided, the wider the field of view obtained, that is, the driver can observe a wider range of field of view information, reduce blind spots in the field of view, and help the driver make more accurate operations, thereby improving driving safety.

[0064] In some embodiments, the receiving module 32 is configured as a mipi receiving module 32 ; and the transmitting module 33 is configured as a LVDS receiving module 32 .

[0065] Specifically, the mipi receiving module 32 is used to receive data transmitted via the mipi protocol. The mipi receiving module 32 has fast data transmission and low power consumption, supports multiple communication protocols, increases flexibility of use, and the hardware implementation of mipi is relatively simple, which is conducive to reducing manufacturing costs. The mipi receiving module 32 in this embodiment is connected to the rearview camera 1 through the main deserializer 41, and can unpack the mipi protocol video message data input by the rearview camera 1 through the physical layer, data link layer, and application layer in sequence to obtain the original YUV or RGB format video data, and then pass it to the frame writing module 34. After that, the DDR3 control module 31 enables the frame writing module 34 to write the collected video data into the DDR3 chip through the AXI bus for storage. Therefore, the device or module that can quickly receive data transmitted via the mipi protocol through the mipi receiving module 32 can further improve the flexibility, real-time and low latency of the electronic rearview mirror system 100.

[0066] The LVDS receiving module 32 is mainly used to receive LVDS signals, which has low power consumption, strong anti-interference ability, fast data transmission and long-distance transmission. The LVDS receiving module 32 in this embodiment is connected to the rearview mirror 2 through the main serializer 42, and can convert parallel data into LVDS signals and output accordingly according to the parameters of the screen. The LVDS signal has a low voltage differential characteristic, which can reduce power consumption and improve anti-interference ability, thereby ensuring the stability and reliability of data transmission. After that, the LVDS signal can continue to be stably transmitted to the main serializer 42, and then transmitted to the rearview mirror 2, so that a low-latency, high-quality video stream can be output to the rearview mirror 2, thereby improving the stability and real-time performance of the image displayed by the rearview mirror 2.

[0067] In actual use, for example, Figure 1 As shown, the mipi receiving module 32 is connected to the rear view camera 1 through the main deserializer 41. Through the GMSL2 high-speed serial protocol, the transmission distance between the rear view camera 1 and the FPGA chip can reach 15 meters or even longer, so as to successfully receive the YUV422 format video input by the rear view camera 1.

[0068] Therefore, through the cooperation of the mipi receiving module 32 and the LVDS receiving module 32, the electronic rearview mirror system 100 can be made more flexible and have a wider range of uses. It can be connected to other devices for use, and the high-speed data transmission capability of mipi effectively ensures the efficient transmission of data, and the low power consumption and high anti-interference capability of LVDS effectively ensure the stability and reliability of data transmission.

[0069] The present invention also provides a vehicle.

[0070] The vehicle according to the embodiment of the present invention includes the electronic rearview mirror system 100 according to any one of the above embodiments.

[0071] By installing the electronic rearview mirror system 100 in the vehicle, the driver can obtain rear and surrounding environment information timely and accurately during driving, thereby improving driving safety, because the electronic rearview mirror system 100 has high real-time image transmission and low latency.

[0072] In addition, since the startup time of the electronic rearview mirror system 100 is very short, each rearview mirror 2 can be quickly initialized and configured at the same time, so that the electronic rearview mirror system 100 can be used quickly without waiting, thereby improving the convenience of use. In an emergency, the driver can obtain rear and surrounding visual information more quickly, so as to make a quicker response, further improving driving safety.

[0073] In some embodiments, Figure 1As shown, there are three rearview mirrors 2, namely an internal rearview mirror 21, a left rearview mirror 22 and a right rearview mirror 23, and there are three cameras of the rearview mirror 2, namely an internal camera 11, a left external camera 12 and a right external camera 13.

[0074] Specifically, the built-in camera 11 corresponds to the built-in rearview mirror 21, the left exterior camera 12 corresponds to the left rearview mirror 22, and the right exterior camera 13 corresponds to the right rearview mirror 23. That is, the image captured by the built-in camera 11 is displayed on the built-in rearview mirror 21, the image captured by the left camera is displayed on the left exterior rearview mirror 2, and the image captured by the right exterior camera 13 is displayed on the right rearview mirror 23, thereby providing the driver with field of view information from multiple perspectives, which is conducive to improving driving safety.

[0075] Furthermore, a left exterior rearview mirror 2 and a right exterior rearview mirror 2 are provided on the outside of the vehicle, a left exterior camera 12 is provided on the left exterior rearview mirror 2, a right exterior rearview mirror 2 is provided on the right exterior camera 13, and an internal camera 11 is provided on the shark fin of the vehicle.

[0076] That is to say, the left exterior camera 12 is set at the position of the left exterior rearview mirror 2 to capture the image of the rear left side of the vehicle and display it on the left rearview mirror 22, the right exterior camera 13 is set at the position of the right exterior rearview mirror 2 to capture the image of the rear right side of the vehicle and display it on the right rearview mirror 23, and the built-in rearview mirror 21 is set at the shark fin position of the vehicle to capture the image directly behind the vehicle and display it on the built-in rearview mirror 21, and the neatness and beauty of the vehicle's appearance can be maintained.

[0077] Therefore, by setting the cameras of each rearview mirror 2 at multiple different positions, the driver can be provided with broad and comprehensive field of view information, reducing blind spots in the field of view, which is conducive to safer driving for the driver.

[0078] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0079] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electronic rearview mirror system, characterized in that: include: At least two rear-view cameras and at least two rear-view mirrors, wherein the at least two rear-view cameras correspond one to one with the at least two rear-view mirrors; FPGA architecture, the FPGA architecture includes a control module, at least two receiving modules and at least two transmitting modules, at least two rearview cameras are connected in parallel to the at least two receiving modules via a main deserializer in a one-to-one correspondence, at least two receiving modules and at least two transmitting modules are respectively connected in parallel to the control module, and at least two transmitting modules are connected in parallel to the at least two rearview mirrors in a one-to-one correspondence via a main serializer.

2. The electronic rearview mirror system according to claim 1, characterized in that: The FPGA architecture also includes a frame writing module and a frame reading module, at least two of the receiving modules are connected in parallel to the control module through the frame writing module, and at least two of the transmitting modules are connected in parallel to the control module through the frame reading module.

3. The electronic rearview mirror system according to claim 2, characterized in that: It also includes a storage chip, which is connected to the control module. The control module is used to store the frame write data of the frame write module in the storage chip, and the control module is used to send the frame write data stored in the storage chip to the frame read module.

4. The electronic rearview mirror system according to claim 3, characterized in that: The control module is configured to send a previous frame of data of the storage chip to the frame reading module while acquiring a subsequent frame of data from the frame writing module.

5. The electronic rearview mirror system according to claim 3, characterized in that: The control module is configured as a DDR3 control module; And, the memory chip is configured as a DDR3 chip.

6. The electronic rearview mirror system according to claim 1, characterized in that: The FPGA architecture also includes a configuration module, which is serially connected between the main deserializer and the main serializer, and the configuration module is used to configure the main deserializer and the main serializer accordingly when the electronic rearview mirror system is turned on.

7. The electronic rearview mirror system according to claim 1, characterized in that: The rear view camera is provided with a built-in serializer, and the rear view camera is connected to the main deserializer via the built-in serializer; The rearview mirror is provided with a built-in deserializer, and the rearview mirror is connected to the main serializer via the built-in deserializer.

8. The electronic rearview mirror system according to claim 1, characterized in that: The number of the rearview cameras is the same as the number of the rearview mirrors, and at least two of the rearview cameras correspond to at least two of the rearview mirrors in a one-to-one manner.

9. The electronic rearview mirror system according to claim 1, characterized in that: The receiving module is configured as a mipi receiving module; And, the transmitting module is configured as an LVDS receiving module.

10. A vehicle, characterized in that: An electronic rearview mirror system comprising any one of claims 1-9.

11. The vehicle according to claim 10, characterized in that There are three rearview mirrors, which are respectively an internal rearview mirror, a left rearview mirror and a right rearview mirror; there are three rearview mirror cameras, which are respectively an internal camera, a left exterior camera and a right exterior camera; and a left exterior rearview mirror and a right exterior rearview mirror are arranged on the outside of the vehicle; Among them, the left exterior camera is arranged on the left exterior rearview mirror, the right exterior camera is arranged on the right exterior rearview mirror, and the built-in camera is arranged on the shark fin of the vehicle.