Electronic outside rear-view mirror system and vehicle
By setting up multiple transmission channels in the electronic exterior rearview mirror system and monitoring and switching, the problems of loss and error in data transmission are solved, the safety and reliability of the system are improved, and the risk of traffic accidents is reduced.
Patent Information
- Application Number
- CN202422824387.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-11-19
AI Technical Summary
The electronic exterior rearview mirror system is prone to loss or error during data transmission, resulting in black screen and flower screen problems of the display screen, affecting the vehicle's driving safety.
At least two transmission channels are set between the image sensor and the serializer, the deserializer and the processor, the processor and the serializer and the display module, and the channel status is monitored through the monitoring module. The switching module switches to the channel that has not failed in the event of a failure for data transmission.
It improves the safety and reliability of the electronic exterior rearview mirror, reduces the risk of traffic accidents caused by system failure, and ensures the stability and integrity of data transmission.
Smart Images

Figure CN223290771U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicle technology, and in particular to an electronic exterior rearview mirror system and a vehicle. Background Art
[0002] With the advancement of technology, automotive electronics has become a trend. Traditional mechanical exterior mirrors are limited by factors such as field of view, clarity, and ease of use, and are unable to meet the higher safety requirements of modern transportation. Electronic exterior mirrors, as one example of this technological innovation, hold broad application prospects. By leveraging advanced electronic technologies such as image processing, electronic exterior mirrors achieve a wider and clearer field of view, reducing visual errors. Furthermore, image processing technology enables automatic adjustment and optimization, improving driving safety. Furthermore, electronic exterior mirrors offer convenient operation, ease of adjustment, and ease of maintenance, meeting the higher safety and convenience requirements of modern transportation.
[0003] However, the electronicization of rearview mirrors also means that functional safety is paramount. If a data transmission error occurs on either the receiving or transmitting end, the electronic rearview mirror system's display may go black or display distortion, posing a safety hazard to the vehicle. Utility Model Content
[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an electronic exterior rearview mirror system and a vehicle to solve the technical problems of the prior art such as easy loss or transmission errors when transmitting data.
[0005] In a first aspect, the present application provides an electronic exterior rearview mirror system, comprising at least one image acquisition module 100, wherein the image acquisition module 100 comprises:
[0006] The image sensor 110 is configured to capture image information of the side and rear of the vehicle and process the image information to obtain first image information;
[0007] a first serializer 120 , communicatively connected to the image sensor 110 , and configured to receive the first image information transmitted from the image sensor 110 ;
[0008] At least two first transmission channels 130 for transmitting the first image information are provided between the image sensor 110 and the first serializer 120 . The image sensor 110 can use any one of the first transmission channels 130 to transmit the first image information to the first serializer 120 .
[0009] Through the embodiment of the present application, at least two first transmission channels 130 are set between the image sensor 110 and the first serializer 120. During operation, any first transmission channel 130 can be used for data transmission. In addition, when a failure occurs in the currently used first transmission channel 130, it is possible to switch to any other first transmission channel 130 that has not failed to continue data transmission, thereby avoiding interference and loss during data transmission and improving the safety and reliability of the electronic exterior rearview mirror.
[0010] In one technical solution of the above-mentioned electronic exterior rearview mirror system, the system further includes a control module 200, and the control module 200 includes:
[0011] a first deserializer 210 , communicatively connected to the first serializer 120 , and configured to receive the first image information transmitted from the first serializer 120 ;
[0012] a processor 220 , communicatively connected to the first deserializer 210 , configured to receive the first image information transmitted by the first deserializer 210 , and process the first image information to generate second image information;
[0013] The second serializer 230 is communicatively connected to the processor 220 and is configured to receive the second image information transmitted from the processor 220 .
[0014] According to the embodiment of the present application, a control module 200 is provided in the system so that the control module 200 can be used to process the first image information for subsequent display.
[0015] In a technical solution of the above-mentioned electronic exterior rearview mirror system, at least two second transmission channels 240 for transmitting the first image information are provided between the first deserializer 210 and the first serializer 120, and the first serializer 120 can use any one of the second transmission channels 240 to transmit the first image information to the first deserializer 210.
[0016] Through the embodiments of the present application, at least two second transmission channels 240 are set between the first deserializer 210 and the first serializer 120. During operation, any second transmission channel 240 can be used for data transmission, and when the currently used second transmission channel 240 fails, it can be switched to any other second transmission channel 240 that has not failed to continue data transmission, thereby avoiding interference and loss during data transmission, and further improving the safety and reliability of the electronic exterior rearview mirror.
[0017] In a technical solution of the above-mentioned electronic exterior rearview mirror system, at least two third transmission channels 250 for transmitting the first image information are provided between the first deserializer 210 and the processor 220, and the first deserializer 210 can use any one of the third transmission channels 250 to transmit the first image information to the processor 220.
[0018] Through the embodiments of the present application, at least two third transmission channels 250 are set between the first deserializer 210 and the processor 220. During operation, any third transmission channel 250 can be used for data transmission, and when the currently used third transmission channel 250 fails, it can be switched to any other third transmission channel 250 that has not failed to continue data transmission, thereby avoiding interference and loss during data transmission, and further improving the safety and reliability of the electronic exterior rearview mirror.
[0019] In a technical solution of the above-mentioned electronic exterior rearview mirror system, at least two fourth transmission channels 260 for transmitting the second image information are provided between the processor 220 and the second serializer 230, and the processor 220 can use any one of the fourth transmission channels 260 to transmit the second image information to the second serializer 230.
[0020] Through the embodiment of the present application, at least two fourth transmission channels 260 are set between the processor 220 and the second serializer 230. During operation, any fourth transmission channel 260 can be used for data transmission, and when the currently used fourth transmission channel 260 fails, it can be switched to any other fourth transmission channel 260 that has not failed to continue data transmission, thereby avoiding interference and loss during data transmission, and further improving the safety and reliability of the electronic exterior rearview mirror.
[0021] In one technical solution of the above-mentioned electronic exterior rearview mirror system, the system further includes a display module 300, and the display module 300 includes:
[0022] at least two second deserializers 310 , each of the second deserializers 310 being communicatively connected to one of the output ports 231 of the second serializer 230 , and configured to receive the second image information transmitted from the second serializer 230 ;
[0023] At least two display screens 320 , each of the display screens 320 is communicatively connected to one of the second deserializers 310 , and is configured to receive and display the second image information transmitted from the second deserializer 310 .
[0024] According to the embodiment of the present application, a display module 300 is provided in the system to display images so that the user can view the environment on the side and rear of the vehicle.
[0025] In a technical solution of the above-mentioned electronic exterior rearview mirror system, at least two fifth transmission channels 330 for transmitting the second image information are provided between each second deserializer 310 and the output port 231, and the output port 231 can use any one of the fifth transmission channels 330 to transmit the second image information to the second deserializer 310.
[0026] Through the embodiments of the present application, at least two fifth transmission channels 330 are set between the second deserializer 310 and the output port 231. During operation, any fifth transmission channel 330 can be used for data transmission, and when the currently used fifth transmission channel 330 fails, it can be switched to any other non-failed fifth transmission channel 330 to continue data transmission, thereby avoiding interference and loss during data transmission, and further improving the safety and reliability of the electronic exterior rearview mirror.
[0027] In a technical solution of the above-mentioned electronic exterior rearview mirror system, a plurality of sixth transmission channels 340 for transmitting the second image information are provided between the display screen 320 and the second deserializer 310. The second deserializer 310 can use any one or more of the plurality of sixth transmission channels 340 to transmit the second image information to the display screen 320.
[0028] Through the embodiment of the present application, multiple sixth transmission channels 340 are set between the display screen 320 and the second deserializer 310. During operation, any one or more sixth transmission channels 340 can be used for data transmission, and when the currently used sixth transmission channel 340 fails, it can be switched to any other one or more groups of sixth transmission channels 340 that have not failed to continue data transmission, avoiding interference and loss during data transmission, and further improving the safety and reliability of the electronic exterior rearview mirror.
[0029] In one technical solution of the above-mentioned electronic exterior rearview mirror system, the system further includes:
[0030] A monitoring module, configured to monitor the transmission status of each transmission channel, wherein the transmission status indicates whether a failure occurs in each transmission channel;
[0031] The switching module is at least in communication with the monitoring module, and is used to close the currently failed transmission channel and enable the unfaulted transmission channel to continue data transmission when the monitoring module detects that any transmission channel has failed.
[0032] Through the embodiments of the present application, a monitoring module is added to monitor the transmission status of each transmission channel so as to detect faults in time and avoid data transmission abnormalities. A switching module is added to close the faulty transmission channel in time and enable the non-faulty transmission channel to continue data transmission and avoid data transmission abnormalities.
[0033] In a second aspect, the present application provides a vehicle comprising the electronic exterior rearview mirror system as described in any one of the first aspects.
[0034] The above one or more technical solutions of this application have at least one or more of the following beneficial effects:
[0035] In the technical solution of the present application, at least two transmission channels are set between relevant modules. When working, any channel can be used for data transmission, and when the currently used channel fails, it can be switched to any other non-faulty channel for data transmission, thereby avoiding interference and loss during data transmission, preventing the display screen of the electronic exterior rearview mirror system from having problems such as black screen and flowery screen, improving the safety and reliability of the electronic exterior rearview mirror, and reducing the risk of traffic accidents caused by system failures.
[0036] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] The disclosure of this application will be more easily understood with reference to the accompanying drawings. Those skilled in the art will readily appreciate that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. Furthermore, similar numbers in the figures represent similar components, where:
[0038] Figure 1 Schematic diagram of the structure of the electronic exterior rearview mirror system provided in Example 1 of the present application;
[0039] Figure 2 This is a schematic structural diagram of the electronic exterior rearview mirror system provided in Example 2 of the present application;
[0040] Figure 3 This is a schematic diagram of the structure of the electronic exterior rearview mirror system provided in Example 3 of the present application.
[0041] Description of reference numerals:
[0042] 100. Image acquisition module; 110. Image sensor; 120. First serializer; 130. First transmission channel; 200. Control module; 210. First deserializer; 220. Processor; 230. Second serializer; 231. Output port; 240. Second transmission channel; 250. Third transmission channel; 260. Fourth transmission channel; 300. Display module; 310. Second deserializer; 320. Display screen; 330. Fifth transmission channel; 340. Sixth transmission channel. DETAILED DESCRIPTION
[0043] Some embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application.
[0044] Rearview mirrors, typically consisting of interior and exterior mirrors, provide drivers with information about the road and people behind and to the sides of the vehicle, playing a crucial role in driving safety. Traditional rearview mirrors have numerous drawbacks, such as limitations on field of view, clarity, and ease of use, making them unable to meet the higher safety requirements of modern transportation.
[0045] The electronic rearview mirror (Camera Monitor System, CMS) is a product combination based on cameras and displays that can enhance the driver's visual perception of the surroundings and sides and rear of the vehicle, further enhancing driving safety and comfort. The images collected by the external camera are displayed on the display screen in the cabin after data processing, and can also integrate functions such as blind spot warnings and obstacle prompts. The electronic rearview mirror is small in size, retractable, has low wind resistance, and is more technological. At the same time, it allows the driver to avoid drastically changing the perspective during driving and can be aware of the surrounding road conditions. Compared with traditional optical rearview mirrors, electronic rearview mirrors have significant advantages: vehicle weight reduction, reduced resistance and noise, and reduced visual blind spots.
[0046] However, as described in the background art, for electronic exterior rearview mirrors, any data transmission error at either the receiving or transmitting end may cause the display screen of the electronic exterior rearview mirror system to go black or display a distorted screen, thereby posing a safety hazard to the vehicle.
[0047] Based on the above problems, the embodiments of the present application propose an electronic exterior rearview mirror system and a vehicle. The system sets at least two transmission channels between related modules. When working, any channel can be used for data transmission. When the currently used channel fails, it can switch to any other non-faulty channel for data transmission, avoiding interference and loss during data transmission, preventing the display screen of the electronic exterior rearview mirror system from having problems such as black screen and flowery screen, improving the safety and reliability of the electronic exterior rearview mirror, and reducing the risk of traffic accidents caused by system failures.
[0048] Example 1
[0049] Figure 1 This is a schematic diagram of the structure of the electronic exterior rearview mirror system provided in the embodiment of the present application, referring to Figure 1 As shown, the electronic exterior rearview mirror system generally includes an image acquisition module 100, which includes an image sensor 110 and a first serializer 120. The image sensor 110 is communicatively coupled to the first serializer 120. The image sensor 110 is configured to capture image information of the sides and rear of the vehicle and process the image information to obtain first image information. The first serializer 120 is configured to receive the first image information transmitted by the image sensor 110 for subsequent transmission. The image sensor 110 processes the captured image information, including but not limited to denoising and edge extraction, to produce a clearer image.
[0050] In some specific embodiments, the image acquisition module 100 can be any camera applicable to a vehicle's electronic exterior rearview mirror system. Due to vehicle layout, the camera is usually placed outside the vehicle, so a serializer is required to merge multiple data streams (image information) into a high-speed serial data stream for transmission.
[0051] It should be noted that in the embodiment of the present application, the specific number of image acquisition modules 100 is not limited. Without violating the inventive concept of the present application, it can be set according to actual needs. As an exemplary and non-restrictive explanation, in the embodiment of the present application, the image acquisition modules 100 include two, which are installed on the left and right sides of the vehicle, respectively, for capturing image information of the left side and rear of the vehicle and for capturing image information of the right side and rear of the vehicle. The image acquisition modules 100 can also be one or more than two, for example, two image acquisition modules 100 are installed on each side of the vehicle, and this application does not limit this.
[0052] It should be noted that the embodiment of the present application does not limit the specific implementation of the first serializer 120. Under the premise of not violating the inventive concept of the present application and meeting the functional requirements, the first serializer 120 can be selected according to actual needs. For example, the first serializer 120 can use MAX9295.
[0053] Further references Figure 1 As shown, in some specific embodiments, at least two first transmission channels 130 for data transmission are provided between the image sensor 110 and the first serializer 120. During normal operation, the image sensor 110 can use any of the first transmission channels 130 to transmit the first image information to the first serializer 120. Furthermore, if the currently used first transmission channel 130 fails, the image sensor 110 can switch to any other unfailed first transmission channel 130 to continue transmitting the first image information. This avoids interference and loss during data transmission, improves the safety and reliability of the electronic exterior rearview mirror, and reduces the risk of traffic accidents caused by system failures.
[0054] It should be noted that, in the embodiment of the present application, the specific implementation of the first transmission channel 130 is not limited, and can be selected according to actual needs without violating the inventive concept of the present application and meeting functional requirements.
[0055] In some specific embodiments, the first transmission channel 130 may utilize a D-PHY channel. D-PHY is a MIPI protocol. The data transmission rate of D-PHY is not fixed, typically ranging from 500 to 1000 Mbit / s. Specifically, the data transmission rate of the corresponding first transmission channel 130 can be configured based on actual transmission requirements. This is not detailed here.
[0056] In the embodiments of this application, the specific number of first transmission channels 130 is not limited. It can be set based on actual needs without violating the inventive concept of this application and meeting functional requirements. For example, the number of first transmission channels 130 can be set to 2, 3, 4, 5, etc., and these are not listed here one by one.
[0057] In the embodiment of the present application, the electronic exterior rearview mirror system includes, in addition to the aforementioned image acquisition module 100, a control module and a display module, depending on its functional requirements. It should be noted that in the embodiment of the present application, the other functional modules of the electronic exterior rearview mirror system are not specifically limited and may be configured according to actual needs without violating the inventive concept of the present application and satisfying the functional requirements.
[0058] Example 2
[0059] The difference from the first embodiment is that, in the embodiment of the present application, the electronic exterior rearview mirror system further includes a control module 200. Figure 2 As shown, the control module 200 includes a first deserializer 210, a processor 220, and a second serializer 230. The first deserializer 210, the processor 220, and the second serializer 230 are communicatively connected in sequence. The first deserializer 210 is communicatively connected to the first serializer 120 for receiving serial first image information transmitted from the first serializer 120; the processor 220 is communicatively connected to the first deserializer 210 for receiving parallel first image information transmitted from the first deserializer 210 and processing the parallel first image information to generate second image information; and the second serializer 230 is communicatively connected to the processor 220 for receiving the second image information transmitted from the processor 220. In the process of transmitting the first image information to the first deserializer 210, the first serializer 120 will merge the first image information from parallel data into a high-speed serial data stream for transmission, so as to reduce the number and cost of transmission lines and improve the transmission rate; the deserializer is the inverse operation of the serializer, so after receiving the serial first image information, the first deserializer 210 will decompose this high-speed serial data stream into multiple parallel data streams to adapt to different computing requirements.
[0060] In the embodiment of the present application, the first serializer outputs serial first image information, and the first deserializer outputs parallel first image information.
[0061] When the electronic exterior rearview mirror system is in operation, the image acquisition module 100 typically captures information such as images outside the vehicle, which is then transmitted to the control module 200 via a cable or other transmission method. The first deserializer 210 in the control module 200 decodes the received data (i.e., first image information) (i.e., decomposing a high-speed serial data stream into multiple parallel data streams) and transmits it to the processor 220. The processor 220 then processes the received data (i.e., the parallel first image information) to obtain second image information. Finally, the second image information is transmitted to subsequent modules (including but not limited to display modules) via the second serializer 230 for subsequent processing or use. In the process of transmitting the second image information to the subsequent modules, the second serializer 230 also merges the parallel data into a high-speed serial data stream for transmission, thereby reducing the number and cost of transmission lines and improving the transmission rate.
[0062] In the embodiment of the present application, the second serializer outputs serial second image information, and the second deserializer outputs parallel second image information.
[0063] It should be noted that, in the implementation of this application, there is no specific limitation on the processing operation performed by the processor 220 on the parallel first image information, and the processing operation can be set according to actual needs, for example, cropping the first image information.
[0064] It should be noted that the embodiments of this application do not limit the specific implementation of the first deserializer 210 and the second serializer 230. They can be selected based on actual needs without violating the inventive concept of this application and meeting the functional requirements. For example, the first deserializer 210 can use a MAX96716, and the second serializer 230 can use a MAX96789.
[0065] It should be noted that in the embodiments of the present application, the specific implementation of the processor 220 is not limited. It can be selected according to actual needs without violating the inventive concept of the present application and meeting the functional requirements. For example, the processor 220 can adopt a system on chip (SoC) or the like. Among them, the system on chip (SoC) is an integrated circuit with a dedicated purpose, which contains all the contents of a complete system and embedded software. At the same time, it is also a technology that is used to realize the entire process from determining the system function to the software / hardware division and completing the design. From a narrow perspective, SoC is the chip integration of the core of the information system, which is the integration of key components of the system on a chip; from a broad perspective, SoC is a micro system. The composition of SoC can be a system-level chip control logic module, a microprocessor / microcontroller CPU core module, a digital signal processor DSP module, an embedded memory module, an interface module for communicating with the outside, an analog front-end module containing ADC / DAC, a power supply and power consumption management module. For a wireless SoC, there is also a radio frequency front-end module, user-defined logic (which can be implemented by FPGA or ASIC) and a micro-electromechanical module. More importantly, a SoC chip is embedded with basic software (RDOS or COS and other application software) modules or loadable user software, etc.
[0066] Further references Figure 2 As shown, in some specific embodiments, at least two second transmission channels 240 for data transmission are provided between the first deserializer 210 and the first serializer 120. During normal operation, the first serializer 120 can use any of the second transmission channels 240 to transmit the first image information to the first deserializer 210. Furthermore, if a failure occurs in the currently used second transmission channel 240, the first serializer 120 can switch to any other unfailed second transmission channel 240 to continue transmitting the first image information. This avoids interference and loss during data transmission, improves the safety and reliability of the electronic exterior rearview mirror, and reduces the risk of traffic accidents caused by system failures.
[0067] It should be noted that in the embodiment of the present application, the specific implementation of the second transmission channel 240 is not limited. It can be selected according to actual needs without violating the inventive concept of the present application and meeting functional requirements.
[0068] In some specific embodiments, the second transmission channel 240 may adopt a Gigabit Multimedia Serial Link (GMSL).
[0069] In the embodiments of this application, the specific number of second transmission channels 240 is not limited. It can be set based on actual needs without violating the inventive concept of this application and meeting functional requirements. For example, the number of second transmission channels 240 can be set to 2, 3, 4, 5, etc., and these are not listed here one by one.
[0070] Further references Figure 2 As shown, in some specific embodiments, at least two third transmission channels 250 for data transmission are provided between the first deserializer 210 and the processor 220. During normal operation, the first deserializer 210 can use any of the third transmission channels 250 to transmit the first image information to the processor 220. In addition, if the currently used third transmission channel 250 fails, it can switch to any other unfailed third transmission channel 250 to continue transmitting the first image information, thereby avoiding interference and loss during the data transmission process, improving the safety and reliability of the electronic exterior rearview mirror, and reducing the risk of traffic accidents caused by system failures.
[0071] It should be noted that the specific implementation of the third transmission channel 250 is not limited in the embodiments of the present application. It can be selected based on actual needs without violating the inventive concept of the present application and meeting the functional requirements. For example, in some specific embodiments, the third transmission channel 250 can use a D-PHY channel.
[0072] In the embodiment of the present application, the specific number of third transmission channels 250 is not limited. It can be set according to actual needs without violating the inventive concept of the present application and meeting the functional requirements. For example, the number of third transmission channels 250 can be set to 2, 3, 4, 5, etc., and the examples are not listed here one by one.
[0073] Further references Figure 2As shown, in some specific embodiments, at least two fourth transmission channels 260 for data transmission are provided between the processor 220 and the second serializer 230. During normal operation, the processor 220 can use any of the fourth transmission channels 260 to transmit the second image information to the second serializer 230. Furthermore, if the currently used fourth transmission channel 260 fails, the processor 220 can switch to any other unfaulted fourth transmission channel 260 to continue transmitting the second image information. This avoids interference and loss during data transmission, improves the safety and reliability of the electronic exterior rearview mirror, and reduces the risk of traffic accidents caused by system failures.
[0074] It should be noted that the specific implementation of the fourth transmission channel 260 is not limited in the embodiments of the present application. It can be selected based on actual needs without violating the inventive concept of the present application and meeting the functional requirements. For example, in some specific embodiments, the fourth transmission channel 260 can use a D-PHY channel.
[0075] In the embodiment of the present application, the specific number of fourth transmission channels 260 is not limited. It can be set according to actual needs without violating the inventive concept of the present application and meeting the functional requirements. For example, the number of fourth transmission channels 260 can be set to 2, 3, 4, 5, etc., and the examples are not listed here one by one.
[0076] Example 3
[0077] The difference from the second embodiment is that, in the embodiment of the present application, the electronic exterior rearview mirror system further includes a display module 300. Figure 3 As shown, the display module 300 includes at least two second deserializers 310 and at least two display screens 320. The second deserializers 310 are communicatively connected to the display screens 320. Each second deserializer 310 is communicatively connected to one of the output ports 231 of the second serializer 230 for receiving the serial second image information transmitted from the second serializer 230; each display screen 320 is communicatively connected to one of the second deserializers 310 for receiving and displaying the parallel second image information transmitted from the second deserializer 310. Optionally, the plurality of second deserializers 310 are connected to the plurality of output ports 231 in a one-to-one correspondence. Optionally, the plurality of display screens 320 are connected to the plurality of second deserializers 310 in a one-to-one correspondence.
[0078] When the electronic exterior rearview mirror system is working, the image acquisition module 100 collects information such as images outside the vehicle, and then transmits it to the control module 200 through a transmission method such as a cable. The first deserializer 210 in the control module 200 decodes the received data (i.e., the serial first image information) (i.e., the first image information is decomposed from a serial data stream into multiple parallel data streams) and transmits it to the processor 220. The processor 220 then processes the received data (i.e., the parallel first image information) to obtain second image information. Finally, the second image information is merged from parallel data into a high-speed serial data stream through the second serializer 230 and transmitted to the display module 300. The second deserializer 310 in the display module 300 decodes the serial second image information (i.e., the second image information is decomposed from a serial data stream into multiple parallel data streams) and outputs a MIPI signal corresponding to the display screen 320 for the display screen 320 to display the picture.
[0079] It should be noted that the specific implementation of the second deserializer 310 is not limited in the embodiments of this application. It can be selected based on actual needs, provided that it does not violate the inventive concept of this application and meets the functional requirements. For example, for LCD screens, the second deserializer 310 can use a MAX96752, etc., and for organic light-emitting display screens, the second deserializer 310 can use a MAX9296, etc.
[0080] It should be noted that the specific implementation of the display screen 320 is not limited in the embodiments of the present application. The display screen 320 can be selected based on actual needs, provided that it does not violate the inventive concept of the present application and meets the functional requirements. For example, the display screen 320 can be a liquid crystal display (LCD) or an organic light emitting display (OLED).
[0081] Further references Figure 3 As shown, in some specific embodiments, at least two fifth transmission channels 330 for data transmission are provided between each second deserializer 310 and the output port 231. During normal operation, the output port 231 can use any of the fifth transmission channels 330 to transmit the second image information to the second deserializer 310. Furthermore, if the currently used fifth transmission channel 330 fails, the output port 231 can switch to any other unfailed fifth transmission channel 330 to continue transmitting the second image information. This avoids interference and loss during data transmission, improves the safety and reliability of the electronic exterior rearview mirror, and reduces the risk of traffic accidents caused by system failures.
[0082] It should be noted that the specific implementation of the fifth transmission channel 330 is not limited in the embodiments of the present application. It can be selected based on actual needs without violating the inventive concept of the present application and meeting the functional requirements. In some specific embodiments, the fifth transmission channel 330 can adopt a Gigabit Multimedia Serial Link (GMSL).
[0083] In the embodiment of the present application, the specific number of the fifth transmission channels 330 is not limited. It can be set according to actual needs without violating the inventive concept of the present application and meeting the functional requirements. For example, the number of the fifth transmission channels 330 can be set to 2, 3, 4, 5, etc., and these are not listed here one by one.
[0084] Further references Figure 3 As shown, in some specific embodiments, multiple sixth transmission channels 340 for data transmission are provided between the display screen 320 and the second deserializer 310. During normal operation, the second deserializer 310 can use any one or more of the sixth transmission channels 340 to transmit the second image information to the display screen 320. In addition, if the currently used sixth transmission channel 340 fails, it can switch to any one or more other unfailed sixth transmission channels 340 to continue transmitting the second image information, thereby avoiding interference and loss during the data transmission process, improving the safety and reliability of the electronic exterior rearview mirror, and reducing the risk of traffic accidents caused by system failures.
[0085] It should be noted that the specific implementation of the sixth transmission channel 340 is not limited in the embodiments of the present application. It can be selected based on actual needs without violating the inventive concept of the present application and meeting the functional requirements. For example, in some specific embodiments, the sixth transmission channel 340 can be implemented using MIPI technology.
[0086] In the embodiment of the present application, the specific number of the sixth transmission channel 340 is not limited. It can be set according to actual needs without violating the inventive concept of the present application and meeting the functional requirements. For example, as an exemplary and non-restrictive explanation, in the embodiment of the present application, when the sixth transmission channel 340 is implemented using MIPI technology, the sixth transmission channel 340 can be set to have multiple differential clock channels (lanes), for example, 8 lanes, 12 lanes, and so on. During normal operation, only 4 lanes are actually used for data transmission between the second deserializer 310 and the display screen 320. Therefore, when one or more lanes in use fail, other normal channels can be selected for transmission.
[0087] As a preferred implementation, in the embodiment of the present application, the system further includes a monitoring module (not shown) for monitoring the transmission status of each transmission channel, wherein the transmission status indicates whether a fault occurs in each transmission channel.
[0088] In specific implementation, the monitoring module can monitor the transmission status of each transmission channel in one or more of the following ways:
[0089] 1. By detecting the handshake signal fed back by the transceiver, for example, the processor 220 and the second serializer 230 perform a handshake and feedback mechanism according to the MIPI protocol. If no expected response or handshake signal is received, it can be determined that there is an abnormality in this channel;
[0090] 2. Through link status monitoring, for example, some MIPI protocols have a link status monitoring function. We can check the link status regularly. If the link is interrupted or erroneous, it will return to an error state or a locked state.
[0091] 3. Through data integrity check, such as CRC check, the sender calculates CRC for the data and then appends it to the data packet. The receiver performs the corresponding CRC calculation after receiving the data. If there is a mismatch, it means that there is an abnormality in the data transmission process, and the channel can be switched.
[0092] As a preferred implementation, in an embodiment of the present application, the system also includes a switching module (not shown), which is at least communicated with the monitoring module and is used to close the currently failed transmission channel and enable the unfaulted transmission channel to continue data transmission when the monitoring module detects that any transmission channel has a fault.
[0093] In specific implementation, when the monitoring module detects that the transmission status of the transmission channel is abnormal, the monitoring module can send a notification to the switching module, and the switching module closes the current channel and configures a new channel (including configuration of relevant registers, data rate, etc.).
[0094] Example 4
[0095] Corresponding to the above-mentioned embodiments 1 to 3, the present application further provides a vehicle, which includes the electronic exterior rearview mirror system as described in any one of embodiments 1 to 3. In this embodiment, the same or similar contents as those in the above-mentioned embodiments 1 to 3 can be referred to above and will not be described in detail later.
[0096] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.
[0097] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
[0098] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.
[0099] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.
[0100] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. An electronic exterior rearview mirror system, characterized in that: At least one image acquisition module (100) is included, and the image acquisition module (100) includes: An image sensor (110) is used to capture image information of the side and rear of the vehicle and process the image information to obtain first image information; a first serializer (120), communicatively connected to the image sensor (110), and configured to receive the first image information transmitted by the image sensor (110); At least two first transmission channels (130) for transmitting the first image information are provided between the image sensor (110) and the first serializer (120), and the image sensor (110) can use any one of the first transmission channels (130) to transmit the first image information to the first serializer (120).
2. The electronic exterior rearview mirror system according to claim 1, characterized in that: The system further comprises a control module (200), wherein the control module (200) comprises: a first deserializer (210), communicatively connected to the first serializer (120), and configured to receive the first image information transmitted by the first serializer (120); a processor (220) communicatively connected to the first deserializer (210), configured to receive the first image information transmitted by the first deserializer (210), and process the first image information to generate second image information; The second serializer (230) is communicatively connected to the processor (220) and is used to receive the second image information transmitted by the processor (220).
3. The electronic exterior rearview mirror system according to claim 2, characterized in that: At least two second transmission channels (240) for transmitting the first image information are provided between the first deserializer (210) and the first serializer (120), and the first serializer (120) can use any one of the second transmission channels (240) to transmit the first image information to the first deserializer (210).
4. The electronic exterior rearview mirror system according to claim 2, characterized in that: At least two third transmission channels (250) for transmitting the first image information are provided between the first deserializer (210) and the processor (220), and the first deserializer (210) can use any one of the third transmission channels (250) to transmit the first image information to the processor (220).
5. The electronic exterior rearview mirror system according to claim 2, characterized in that: At least two fourth transmission channels (260) for transmitting the second image information are provided between the processor (220) and the second serializer (230), and the processor (220) can use any one of the fourth transmission channels (260) to transmit the second image information to the second serializer (230).
6. The electronic exterior rearview mirror system according to claim 2, characterized in that: The system further comprises a display module (300), wherein the display module (300) comprises: at least two second deserializers (310), each of the second deserializers (310) being communicatively connected to one of the output ports (231) of the second serializer (230) and configured to receive the second image information transmitted by the second serializer (230); At least two display screens (320), each of the display screens (320) is communicatively connected to one of the second deserializers (310), and is used to receive and display the second image information transmitted by the second deserializer (310).
7. The electronic exterior rearview mirror system according to claim 6, characterized in that: At least two fifth transmission channels (330) for transmitting the second image information are provided between each second deserializer (310) and the output port (231), and the output port (231) can use any one of the fifth transmission channels (330) to transmit the second image information to the second deserializer (310).
8. The electronic exterior rearview mirror system according to claim 6, characterized in that: A plurality of sixth transmission channels (340) for transmitting the second image information are provided between the display screen (320) and the second deserializer (310), and the second deserializer (310) can use any one or more of the plurality of sixth transmission channels (340) to transmit the second image information to the display screen (320).
9. The electronic exterior rearview mirror system according to any one of claims 1 to 8, characterized in that: The system further comprises: A monitoring module, configured to monitor the transmission status of each transmission channel, wherein the transmission status indicates whether a failure occurs in each transmission channel; The switching module is at least in communication with the monitoring module, and is used to close the currently failed transmission channel and enable the unfaulted transmission channel to continue data transmission when the monitoring module detects that any transmission channel has failed.
10. A vehicle, characterized in that: Comprising the electronic exterior rearview mirror system as described in any one of claims 1-9.