Double-screen indirect visual field system based on single ECU visual field processing and automobile

Abstract

The utility model discloses a double-screen indirect visual field system based on single ECU visual field processing, which is deployed on an automobile and comprises an ECU unit, a first display and a second display, the first display and the second display are connected to the same ECU unit; the ECU unit outputs a visual field image signal and displays the visual field image signal on the first display and / or the second display; the first display is arranged on the co-driver position side of the automobile; the second display is arranged on the main driving position side of the automobile; and the ECU unit is deployed on the co-driver position side of the target automobile. According to the utility model, the ECU and one of the displays are arranged on one side of the automobile cab close to the emergency lane, so that the safety of the display on the side is improved, the probability of failure of the electronic rearview mirror close to one side of the emergency lane is small when a driver needs to pull over to park, and the safety coefficient of the whole system is improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile electronic safety, in particular to a double-screen indirect vision system based on single ECU vision processing and an automobile. Background Art

[0002] In traditional technology, the ECU unit is the most common control unit, which is used to manage and control specific functions or subsystems of the vehicle. Each system or subsystem usually has its own ECU, which is responsible for receiving sensor data, executing corresponding algorithms, and sending instructions to control the operation of the system. Generally, multiple ECUs are used to support the field of view acquisition of electronic rearview mirrors, because in this case, the requirements for FPGA or SOC or SOC image processor are lower. At the same time, since multiple ECU units are used, each ECU corresponds to a camera. Since the operating load of the ECU unit is low and it can be directly connected to the display, the probability of the corresponding ECU unit downtime can be actually reduced. Generally speaking, its technical architecture is:

[0003] 1: The driver's side Class II+IV uses an independent ECU, and the passenger side Class II+IV and Class V+VI systems share one ECU to connect to the vehicle. This solution is more expensive, and the vehicle body needs to provide two power supplies and network nodes, which is more difficult and has lower vehicle matching compatibility.

[0004] 2: The three systems of Class II+IV on the driver's side, Class II+IV on the front passenger side, and Class V+VI share one ECU. The ECU is independent of the three monitors, and the vehicle needs to provide a separate installation point and power supply for the ECU. The vehicle matching and layout are difficult. Because the video signal needs to be transmitted over a long distance between the ECU and each monitor, it is necessary to add a high-cost serialization and deserialization chip on the ECU side and the monitor side to transmit the video signal in serial form. This adds additional costs and functional safety risks.

[0005] In addition, since the monitor on the passenger side is a remote screen, the risk of functional safety failure is relatively higher. Once the monitor on the passenger side fails, the driver cannot slowly slow down the vehicle and stop it on the roadside on the passenger side by observing the right field of view. Utility Model Content

[0006] In order to solve the technical problem that the ECU field of view processing in the prior art easily leads to a decrease in the safety factor, the utility model provides a dual-screen indirect field of view system based on single ECU field of view processing, and the specific technical solution is as follows:

[0007] A dual-screen indirect vision system based on single ECU vision processing, deployed on a car, comprising an ECU unit, a first display, and a second display; the first display and the second display are connected to the same ECU unit; the ECU unit outputs a vision image signal and displays it on the first display and / or the second display;

[0008] The first display is disposed on the passenger side of the automobile;

[0009] The second display is disposed on the main driving seat side of the automobile;

[0010] The ECU unit is disposed on the passenger side of the automobile.

[0011] In this technical solution, the ECU unit and one of the displays are arranged on the side of the car cab close to the emergency lane, thereby improving the safety of the display on this side, so that when the driver needs to pull over, the probability of failure of the electronic rearview mirror on the side close to the emergency lane is small, thereby improving the overall safety factor of the system. At the same time, since the field of view processing is achieved using a single ECU without reducing the safety factor, the cost of the whole vehicle is reduced;

[0012] Preferably, the first display is connected to the ECU unit via an FPC soft wire.

[0013] Further preferably, a display serial adding chip and a display deserializing chip are arranged between the second display and the ECU unit;

[0014] The visual field image signal output by the ECU unit is serialized by the display serialization chip and then sent to the deserialization chip;

[0015] The display deserialization chip deserializes the received visual field image signal and transmits it to the second display via the FPC soft wire;

[0016] The display serial adding chip and the display deserializing chip are connected via a Fakra video line.

[0017] In this preferred technical solution, the display on the side close to the emergency lane is connected through an FPC parallel soft wire, and the display on the side away from the roadside is connected through a serial line, which reduces the number of required serial addition and deserialization chips, thereby reducing costs.

[0018] Further preferably, it also includes: a camera module for collecting field of view images;

[0019] The ECU unit is connected to the camera module, and is used to receive the field of view image signal output by the camera module, and output a displayable field of view image signal;

[0020] The first display and the second display are used to receive and display the displayable field of view image signal.

[0021] Further preferably, the camera module specifically includes: a first camera, used to collect class II field of view images and class IV field of view images;

[0022] The second camera is used to collect category II field of view images and category IV field of view images.

[0023] Further preferably, a third display is further included, and the third display is used to display the V-type field of view image and the VI-type field of view image; the camera module also includes a third camera; the third camera is used to capture the V-type field of view image and the VI-type field of view image;

[0024] The first display and the second display are used to display the class II visual field and the class IV visual field;

[0025] The third display is arranged on the co-pilot seat side of the automobile; the third display is connected to the ECU unit via an FPC soft wire.

[0026] Further preferably, the ECU unit comprises:

[0027] A camera deserialization chip, connected to the first camera and the second camera respectively, and used for deserializing the field of view image signals output by the first camera and the second camera;

[0028] An FPGA or SOC chip is connected to the camera deserialization chip and is used to convert the field of view image signal after deserialization processing into a displayable field of view image signal;

[0029] The MCU chip is connected to the FPGA or SOC chip and is used to send a control signal to control the opening and closing of the FPGA or SOC chip.

[0030] Further preferably, the first camera and the second camera are connected to the camera deserialization chip via a Fakra video cable, and output a first GMSL field of view image signal and a second GMLS field of view image signal respectively;

[0031] The camera deserialization chip is used to receive the first GMSL field of view image signal and the second GMLS field of view image signal, and output the first MIPI field of view image signal and the second MIPI field of view image signal;

[0032] The FPGA or SOC chip is used to receive the first MIPI field of view image signal and the second MIPI field of view image signal, and output the first LVDS field of view image signal and the second LVDS field of view image signal to the display.

[0033] Preferably, the ECU unit is connected to the power supply of the car on the co-pilot side of the car; the ECU unit is connected to the CAN network of the car on the co-pilot side of the car.

[0034] Preferably, a temporary start button is provided on the second display for starting the ECU unit.

[0035] Further preferably, the first display and / or the second display is connected to the FPGA or SOC chip to receive the first LVDS field of view image signal to display the class II field of view and the class IV field of view;

[0036] The third display is connected to the FPGA or SOC chip, and is used to receive the second LVDS field of view image signal to display the V-type field of view and the VI-type field of view.

[0037] In this preferred technical solution, by merging the hardware of multiple ECU units into one ECU unit, and then processing the images acquired by two cameras at the same time, and then outputting them to Class II, Class IV displays and Class V, Class VI displays respectively, the effect of simultaneous display of Class II, Class IV, Class V and Class VI fields of view is achieved, the amount of hardware is reduced, and the product cost is reduced.

[0038] Further preferably, the camera deserialization chip, the FPGA or SOC chip and the MCU chip are integrated on the same PCB board.

[0039] A car is equipped with the dual-screen indirect field of view system based on single ECU field of view processing.

[0040] The utility model includes at least one of the following technical effects:

[0041] (1) By placing the ECU unit and one of the displays on the side of the car cab close to the emergency lane, the safety of the display on that side is improved. When the driver needs to pull over, the probability of failure of the electronic rearview mirror on the side close to the emergency lane is low, thereby improving the overall safety factor of the system. At the same time, since a single ECU is used for field of view processing without reducing the safety factor, the cost of the entire vehicle is reduced.

[0042] (2) The display on the side close to the emergency lane is connected via an FPC parallel soft wire, and the display on the side far from the roadside is connected via a serial line, which reduces the number of required serialization and deserialization chips, thereby reducing costs. At the same time, the power supply and CAN network of the car are also connected on the passenger side. In this way, the entire system can only connect the ECU on the passenger side to the body, reducing the power supply and network node requirements of the body;

[0043] (3) By merging the hardware of multiple ECU units into one ECU unit, the images acquired by two cameras are processed simultaneously and then output to Class II and Class IV displays and Class V and Class VI displays respectively, the effect of simultaneously displaying Class II, Class IV, Class V and Class VI fields of view is achieved, thereby reducing the amount of hardware and lowering product costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0045] Figure 1 This is a system structure diagram of Example 1 of a dual-screen indirect field of view system based on single ECU field of view processing of the utility model;

[0046] Figure 2 This is a system structure diagram of Embodiment 2 of a dual-screen indirect field of view system based on single ECU field of view processing of the utility model;

[0047] Figure 3 It is a schematic diagram of the connection between the deserialization chip and the camera in this application;

[0048] Figure 4 It is a schematic diagram of the structure of the ECU unit in this application;

[0049] Figure 5 It is a schematic diagram of the connection between the FPGA or SOC chip and the display in this application;

[0050] Figure 6 It is a schematic diagram of an embodiment of an electronic rearview mirror in the present application.

[0051] ECU unit 1; first display 2; second display 3; third display 4; display deserialization chip 5; display serialization chip 6; first camera 71; second camera 72; third camera 73;

[0052] Camera deserialization chip 8; temporary start button 9. DETAILED DESCRIPTION

[0053] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0054] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0055] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0056] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0057] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0058] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0059] Embodiment 1:

[0060] like Figure 1As shown, the embodiment provides a dual-screen indirect vision system based on single ECU vision processing, which is deployed on a car and includes an ECU unit 1, a first display 2, and a second display 3; the first display 2 and the second display 3 are connected to the same ECU unit 1; the ECU unit 1 outputs a vision image signal and displays it on the first display 2 and / or the second display 3;

[0061] The first display 2 is disposed on the passenger side of the car;

[0062] The second display 3 is disposed on the main driving seat side of the car;

[0063] The ECU unit 1 is disposed on the passenger side of the automobile.

[0064] In traditional technology, the ECU unit is the most common control unit used to manage and control specific functions or subsystems of the vehicle. Each system or subsystem usually has its own ECU, which is responsible for receiving sensor data, executing corresponding algorithms, and sending instructions to control the operation of the system. Generally, multiple ECUs are used to support the field of view acquisition of electronic rearview mirrors, because in this case, the requirements for FPGA or SOC image processors are lower. At the same time, since multiple ECU units are used, each ECU corresponds to a camera. Since the operating load of the ECU unit is low, the probability of the corresponding ECU unit crashing can actually be reduced. However, there are fewer chip options that can meet the requirements of a single ECU to support 3-way high-definition field of view processing at the same time and meet the functional safety requirements, and the cost is high and the development difficulty is great. With the iteration of technology, the existing ECU units have gradually been able to meet the computing power required by the existing rearview mirror system. Therefore, in this embodiment, only one ECU unit is used to support the field of view video service, and the original one camera corresponding to one ECU system is changed to multiple cameras corresponding to the same ECU unit. Then, the field of view image signal collected by the camera is processed and rendered by the ECU system and transmitted to the display, so as to transmit the corresponding field of view image to the user. At the same time, in order to improve the overall safety of the system, it is convenient for the driver to park by the side of the road and use the cab on the side of the road. The ECU unit 1 is set at the driving position of the car driving by the roadside. Since the ECU unit 1 is close to the display on this side, it can be directly connected using FPC soft wires, etc. Compared with the transmission method using serial and other additional devices for data type conversion, the number of modules required is greatly reduced, so the probability of its failure will be relatively greatly reduced. Generally speaking, even if the display of the driving position far away from the roadside fails, the display close to the emergency lane can still be used for parking by the side of the road, thereby ensuring the safety of the system.

[0065] Please also note that this application only uses one ECU unit 1 to support field of view video services, which does not mean that the entire vehicle has only one ECU unit 1. If only one ECU unit 1 is used for field of view video processing, but the entire vehicle still has multiple ECU units, it still falls within the protection scope of this application.

[0066] Specifically, for areas where the law requires cars to drive on the right, such as China, the ECU unit 1 is set on the right side of the cab; for areas where the law requires cars to drive on the left, such as Japan, the ECU unit 1 is set on the left side of the cab. Taking China and other left-hand drive countries, that is, countries where cars drive on the right, as an example, when a car driver is driving a car normally on the road, if the electronic rearview mirror on the main driver's side, which is far from the roadside, fails, the driver will immediately pull over to wait for rescue. Since the ECU unit 1 is set on the co-pilot side, because it can be directly connected using FPC soft wires, etc., the number of modules required is greatly reduced. Therefore, in general, the electronic rearview mirror on the co-pilot side will not fail, so there is no need to worry about the failure of the electronic rearview mirrors on both sides at the same time. The electronic rearview mirror on the co-pilot side can be used to pull over to wait for rescue.

[0067] Preferably, the ECU unit 1 is connected to the power supply of the car at the co-pilot side of the car; the ECU unit 1 is connected to the CAN network of the car at the co-pilot side of the car.

[0068] At the same time, when the ECU unit is set to the co-pilot seat, the car's power supply and CAN network are also connected on the co-pilot side. In this way, the entire system can only have the ECU on the co-pilot side connected to the car body, reducing the power supply and network node requirements of the car body.

[0069] Preferably, a temporary start button 9 is provided on the second display 3 for starting the ECU unit 1. More specifically, since the second display 3 is connected to the ECU unit 1 by serial addition and deserialization, the driver can quickly start the ECU unit 1 by directly setting the temporary start button 9 on the third display 3 on the main driving seat side.

[0070] In this embodiment, by arranging the ECU unit 1 and one of the displays on the side of the car cab close to the emergency lane, a direct connection can be made using an FPC soft wire or the like. Compared with a transmission method such as serial transmission which requires multiple additional devices for data type conversion, the number of modules required is greatly reduced, thereby improving the safety of the display on that side. When the driver needs to pull over, the probability of failure of the electronic rearview mirror on the side close to the emergency lane is lower, thereby improving the overall safety factor of the system. At the same time, since the field of view processing is achieved using a single ECU without reducing the safety factor, the cost of the entire vehicle is reduced.

[0071] Embodiment 2:

[0072] like Figure 1 As shown, this embodiment is based on embodiment 1, and provides a dual-screen indirect field of view system based on single ECU field of view processing, wherein the first display 2 is connected to the ECU unit 1 via an FPC soft wire. A display serialization chip 6 and a display deserialization chip 5 are provided between the second display 3 and the ECU unit 1; the field of view image signal output by the ECU unit 1 is serialized by the display serialization chip 6 and then sent to the deserialization chip; the display deserialization chip 5 transmits the received field of view image signal to the second display 3 via the FPC soft wire after deserialization processing; the display serialization chip 6 and the display deserialization chip 5 are connected via a fakra video cable.

[0073] In this embodiment, for the sake of ease of description, we still take the left-hand drive area in China as an example. Since the ECU unit 1 and the first display 2 are both arranged on the co-pilot side and the relative distance is short, they can be directly connected using an FPC soft wire. In this way, on the one hand, since the FPC soft wire is a parallel line, the transmission rate is relatively high. On the other hand, since there is no need to add strings through a serial chip, the cost of the serial chip and the deserialization chip is also saved. At the same time, since the second display 3 is located at the far end of the ECU unit 1, the FPC soft wire cannot be used and can only be connected using a serial line. More specifically, the ECU unit 1 converts the field of view image signal into a serial signal through the serial chip, and transmits it to the deserialization chip located on the main driver through the serial line. The display deserialization chip 5 deserializes the field of view image signal, converts it into a parallel signal, and transmits the parallel signal to the second display 3 for display on the main driver's side.

[0074] In this embodiment, the display on the side close to the emergency lane is connected through an FPC parallel soft wire, and the display on the side far from the roadside is connected through a serial line, thereby reducing the number of required serial addition and deserialization chips and reducing costs.

[0075] Embodiment 3:

[0076] like Figure 1-5 As shown, this embodiment is based on embodiment 1, and provides a dual-screen indirect field of view system based on single ECU field of view processing, and also includes: a camera module for collecting field of view images; the ECU unit 1 is connected to the camera module, and is used to receive the field of view image signal output by the camera module, and output a displayable field of view image signal; the first display 2 and the second display 3 are used to receive and display the displayable field of view image signal. The camera module specifically includes: a first camera 71, which is used to collect class II field of view images and class IV field of view images; a second camera 72, which is used to collect class II field of view images and class IV field of view images. A third display 4, the third display 4 is used to display the class V field of view images and class VI field of view images; the camera module also includes a third camera 73; the third camera 73 is used to collect class V field of view images and class VI field of view images; the first display 2 and the second display 3 are used to display class II field of view and class IV field of view; the third display 4 is set on the co-pilot side of the car; the third display 4 and the ECU unit 1 are connected by an FPC soft wire.

[0077] Classification of indirect vision of automobiles in electronic rearview mirrors: Category I: inner rear vision; Category II and III: main outer rear vision; Category IV: wide-angle external vision; Category V: blind spot external vision; Category VI: front vision.

[0078] In actual automobile operation, the above-mentioned field of view is required for safety assistance. Therefore, in this embodiment, in addition to the first display 2 and the second display 3 for displaying the Class II field of view image and the Class IV field of view image, a third display 4 for displaying the Class V field of view image and the Class VI field of view image is added. At the same time, the third display 4 is also arranged on the co-pilot side, close to the ECU unit 1, so as to improve its safety. At the same time, since the third display 4 is close to the ECU unit 1, it can be directly connected through the FPC soft cable without adding a serialization and deserialization chip. On the one hand, the transmission rate is higher, and on the other hand, the cost is lower.

[0079] More specifically, the fields of view of class II and class IV share a camera to acquire images, which is marked as camera No. 1 (first camera 71); the fields of view of class V and class VI share a camera to acquire images, which is marked as camera No. 2 (third camera 73). The videos acquired by the two cameras are transmitted to the only ECU unit in the video system, and then the ECU pushes the acquired field of view images of class II and class IV, class V and class VI to three displays respectively.

[0080] Further preferably, the ECU unit 1 includes: a camera deserialization chip 8, connected to the first camera 71 and the second camera 72 respectively, for deserializing the field of view image signals output by the first camera 71 and the second camera 72; an FPGA or SOC chip, connected to the camera deserialization chip 8, for converting the field of view image signals after deserialization into displayable field of view image signals; an MCU chip, connected to the FPGA or SOC chip, for sending a control signal to control the opening and closing of the FPGA or SOC chip. The camera deserialization chip 8, the FPGA or SOC chip and the MCU chip are integrated on the same PCB board.

[0081] In this embodiment, the camera deserialization chip 8 first deserializes the serial field of view image signals collected from the first camera 71 and the second camera 72 into parallel field of view image signals. At the same time, since the parallel data stream cannot be directly displayed, after the deserialization chip converts the serial data stream into a parallel data stream, an FPGA or SOC chip is added to convert the serial data stream into a displayable field of view image signal. The MCU chip controls the start of the FPGA or SOC chip, and the deserialization chip transmits the converted field of view image signal to the FPGA or SOC chip on the PCB board that has been normally started by the MCU chip.

[0082] Among them, FPGA or SOC is a logic device that can be repeatedly programmed by engineers. The main body is a digital integrated circuit, a chip whose internal structure can be changed by programming. In this application, the code corresponding to the processing of the two-way field of view image signal is well known to those skilled in the art and does not involve the improvement of the software program.

[0083] MCU chip refers to microcontroller unit (MCU), also known as single-chip microcomputer or single-chip microcomputer. It reduces the frequency and specifications of the central processing unit appropriately, and integrates peripheral interfaces such as memory, counter, USB, A / D conversion, UART, PLC, DMA, and even LCD drive circuit on a single chip to form a chip-level computer. It can perform different combination controls for different application scenarios, so MCU chip is a single-chip microcomputer chip.

[0084] Further preferably, the first camera 71 and the second camera 72 are connected to the camera deserialization chip 8 through a fakra video line, and output a first GMSL field of view image signal and a second GMLS field of view image signal respectively; wherein the first GMSL field of view image signal and the second GMLS field of view image signal are both serial signals, and the first MIPI field of view image signal and the second MIPI field of view image signal are both parallel signals. It is a common technology in the field that the deserialization chip converts the serial signal into a parallel signal, and there is no algorithmic improvement involved in the deserialization chip.

[0085] The camera deserialization chip 8 is used to receive the first GMSL field of view image signal and the second GMLS field of view image signal, and output the first MIPI field of view image signal and the second MIPI field of view image signal; outputting the GMSL field of view image signal means that the collected image is output as a GMSL signal. GMSL (Gigabit Multimedia Serial Links), whose Chinese name is Gigabit Multimedia Serial Link, is a high-speed serial interface launched by Maxim, suitable for the transmission of audio, video and control signals.

[0086] The FPGA or SOC chip is used to receive the first MIPI field of view image signal and the second MIPI field of view image signal, and output the first LVDS field of view image signal and the second LVDS field of view image signal to the display.

[0087] Among them, LVDS (Low-Voltage Differential Signaling) is a level standard for a signal transmission mode proposed by National Semiconductor (NS, now TI) in 1994. It uses extremely low voltage swing to transmit data at high speed differentially, and can achieve point-to-point or point-to-multipoint connection. It has the advantages of low power consumption, low bit error rate, low crosstalk and low radiation. It has been widely used in serial high-speed data communication occasions, such as high-speed backplane, cable and board-to-board data transmission and clock distribution, as well as communication links within a single PCB.

[0088] The first display 2 and / or the second display 3 are connected to the FPGA or SOC chip, and are used to receive the first LVDS field of view image signal to display class II field of view and class IV field of view; the third display 4 is connected to the FPGA or SOC chip, and is used to receive the second LVDS field of view image signal to display class V field of view and class VI field of view.

[0089] The above content can be converted into the following steps:

[0090] Step 1: The fields of view of category II and category IV need to share a camera to acquire images, marked as camera No. 1;

[0091] Step 2: The fields of view of categories V and VI need to share a camera to acquire images, which is marked as camera No. 2.

[0092] Step 3: The two images captured by camera No.1 and camera No.2 need to be transmitted to the deserialization chip on the PCB board end through the Fakra video cable with GMLS signal.

[0093] Step 4: The deserialization chip converts the GMLS signal into a MIPI signal and transmits it to the FPGA or SOC chip on the PCB board that has been normally turned on by the MCU.

[0094] Step 5: FPGA or SOC chip processes the MIPI signals of the two images and then separates them into two paths. The first path of the two paths, the images of category II and category IV, are connected to the display panels of category II and category IV through the LVDS signal through the FPC soft cable to display the vision of category II and category IV; the second path of the images of category V and category VI, are also connected to the display panels of category V and category VI through the LVDS signal through the FPC soft cable to display the vision of category V and category VI.

[0095] This embodiment combines the hardware of multiple ECU units into one ECU unit, and then processes the images acquired by two cameras simultaneously, and then outputs them to Class II, Class IV displays and Class V, Class VI displays respectively, thereby achieving the effect of simultaneous display of Class II, Class IV, Class V and Class VI fields of view, reducing the amount of hardware and lowering product costs.

[0096] Embodiment 4:

[0097] This embodiment provides a car, such as Figure 1-5 As shown, a dual-screen indirect vision system based on single ECU vision processing as described in any one of embodiments 1 to 3 is deployed. The automobile is generally a large or medium-sized truck.

[0098] In this embodiment, by arranging the ECU unit 1 and one of the displays on the side of the car cab close to the emergency lane, a direct connection can be made using an FPC soft wire or the like. Compared with a transmission method such as serial transmission which requires multiple additional devices for data type conversion, the number of modules required is greatly reduced, thereby improving the safety of the display on that side. When the driver needs to pull over, the probability of failure of the electronic rearview mirror on the side close to the emergency lane is lower, thereby improving the overall safety factor of the system. At the same time, since the field of view processing is achieved using a single ECU without reducing the safety factor, the cost of the entire vehicle is reduced.

[0099] Through the above embodiments, the utility model achieves:

[0100] (1) By placing the ECU unit and one of the displays on the side of the car cab close to the emergency lane, a direct connection can be made using an FPC soft wire, etc. Compared with a transmission method such as serial transmission that requires multiple additional devices for data type conversion, the number of modules required is greatly reduced, thereby improving the safety of the display on that side. When the driver needs to pull over, the probability of failure of the electronic rearview mirror on the side close to the emergency lane is low, thereby improving the overall safety factor of the system. At the same time, since a single ECU is used for field of view processing without reducing the safety factor, the cost of the entire vehicle is reduced;

[0101] (2) The display on the side close to the emergency lane is connected via FPC parallel soft wires, and the display on the side away from the roadside is connected via serial wires, which reduces the number of required serial addition and deserialization chips, thereby reducing costs;

[0102] (3) By merging the hardware of multiple ECU units into one ECU unit, the images acquired by two cameras are processed simultaneously and then output to Class II and Class IV displays and Class V and Class VI displays respectively, the effect of simultaneously displaying Class II, Class IV, Class V and Class VI fields of view is achieved, thereby reducing the amount of hardware and lowering product costs.

[0103] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0104] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A dual-screen indirect vision system based on single ECU vision processing, deployed on a car, characterized in that: It includes an ECU unit, and also includes a first display and a second display; the first display and the second display are connected to the same ECU unit; the ECU unit outputs a visual field image signal and displays it on the first display and / or the second display; The first display is disposed on the passenger side of the automobile; The second display is disposed on the main driving seat side of the automobile; The ECU unit is disposed on the passenger side of the automobile.

2. A dual-screen indirect vision system based on single ECU vision processing according to claim 1, characterized in that: The first display is connected to the ECU unit via an FPC soft wire.

3. A dual-screen indirect vision system based on single ECU vision processing according to claim 2, characterized in that: A display serial adding chip and a display deserializing chip are arranged between the second display and the ECU unit; The visual field image signal output by the ECU unit is serialized by the display serialization chip and then sent to the deserialization chip; The display deserialization chip deserializes the received visual field image signal and transmits it to the second display via the FPC soft wire; The display serial adding chip and the display deserializing chip are connected via a Fakra video line.

4. A dual-screen indirect vision system based on single ECU vision processing according to claim 1, characterized in that: Also includes: A camera module, used to collect field of view images; The ECU unit is connected to the camera module, and is used to receive the field of view image signal output by the camera module, and output a displayable field of view image signal; The first display and the second display are used to receive and display the displayable field of view image signal.

5. A dual-screen indirect vision system based on single ECU vision processing according to claim 4, characterized in that: The camera module specifically includes: a first camera, used to collect class II field of view images and class IV field of view images; The second camera is used to collect category II field of view images and category IV field of view images.

6. A dual-screen indirect vision system based on single ECU vision processing according to claim 4, characterized in that: It also includes a third display, and the third display is used to display the V-type visual field image and the VI-type visual field image; the camera module also includes a third camera; The third camera is used to collect the V-type visual field image and the VI-type visual field image; The first display and the second display are used to display the class II visual field and the class IV visual field; The third display is arranged on the co-pilot seat side of the automobile; the third display is connected to the ECU unit via an FPC soft wire.

7. A dual-screen indirect vision system based on single ECU vision processing according to claim 5, characterized in that: The ECU unit comprises: A camera deserialization chip, connected to the first camera and the second camera respectively, and used for deserializing the field of view image signals output by the first camera and the second camera; An FPGA or SOC chip is connected to the camera deserialization chip and is used to convert the field of view image signal after deserialization processing into a displayable field of view image signal; The MCU chip is connected to the FPGA or SOC chip and is used to send a control signal to control the opening and closing of the FPGA or SOC chip.

8. The dual-screen indirect vision system based on single ECU vision processing according to claim 1 is characterized in that: The ECU unit is connected to a power source of the vehicle at the passenger side of the vehicle; The ECU unit is connected to the CAN network of the vehicle at the passenger side of the vehicle.

9. A dual-screen indirect vision system based on single ECU vision processing according to claim 8, characterized in that: A temporary start button is provided on the second display for starting the ECU unit.

10. An automobile, characterized in that: A dual-screen indirect field of view system based on single ECU field of view processing as described in any one of claims 1-9 is deployed.

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