Electronic rearview mirror system

Abstract

The present invention provides an electronic rearview mirror system, comprising a CPU, a display module and a camera, wherein the camera is arranged on a vehicle body, the camera is connected to the CPU, the CPU is connected to the display module, the CPU comprises an R5 core and an A55 core, the R5 core is used to obtain, share and display camera data, the A55 core is used to execute a detection algorithm and send the detection result to the R5 core, and the R5 core displays the camera data and the detection result to the display module. The electronic rearview mirror system provided by the present invention takes into account startup speed, fast algorithm detection, system security, low latency, and is easy to use.

Description

Technical Field

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

[0002] Compared with traditional rearview mirrors, automotive electronic rearview mirrors can eliminate blind spots and allow drivers to see clearly in harsh scenes. However, existing electronic rearview mirrors are based on a single-domain hardware environment and use a single operating system to implement all the functions of the electronic rearview mirror. They cannot take into account startup speed, fast algorithm detection, system security, and low latency. When in use, the CPU obtains image data from the camera, displays it on the screen after processing, and superimposes the algorithm detection results on the screen. Algorithm detection and actual camera images on the screen both require the use of camera data. If the algorithm detection is not timely, it will lead to greater delays, because it is necessary to provide an algorithm operating environment, generally running Linux or Android operating systems, which will result in a slow startup speed, and the complexity of the system will also lead to instability. Therefore, it is very necessary to design an electronic rearview mirror system. Summary of the invention

[0003] The purpose of the present invention is to provide an electronic rearview mirror system that takes into account startup speed, rapid algorithm detection, system safety, low latency, and ease of use.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] An electronic rearview mirror system comprises: a CPU, a display module and a camera, wherein the camera is arranged on a vehicle body, the camera is connected to the CPU, and the CPU is connected to the display module;

[0006] The CPU includes an R5 core and an A55 core. The R5 core is used to acquire, share and display camera data. The A55 core is used to execute a detection algorithm and send the detection results to the R5 core. The R5 core displays the camera data and the detection results on a display module.

[0007] Optionally, the R5 core runs the RTOS system, obtains camera data, and shares it with the A55 core, and displays the obtained camera data directly on the display module.

[0008] Optionally, the A55 core runs a Linux system equipped with a BSD algorithm, detects the camera data shared by the R5 core using the BSD algorithm, sends the detection result to the R5 core, and the R5 core displays it on a display module.

[0009] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects: the electronic rearview mirror system provided by the present invention includes a CPU, a display module and a camera, the CPU includes an R5 core and an A55 core, the R5 core is used to obtain, share and display camera data, the A55 core is used to execute the detection algorithm, the camera display speed is fast, and the picture delay is low. Even if the A55 core fails to operate, the camera display can still be guaranteed by the R5 core, and the BSD algorithm is run on the A55 core to ensure the algorithm operation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0011] Figure 1 This is a functional block diagram of an electronic rearview mirror system according to an embodiment of the present invention;

[0012] Figure 2 This is a schematic diagram of the hardware data flow of the electronic rearview mirror system according to an embodiment of the present invention;

[0013] Figure 3 The figure is a software block diagram of the electronic rearview mirror system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0014] The purpose of the present invention is to provide an electronic rearview mirror system that takes into account startup speed, rapid algorithm detection, system safety, low latency, and ease of use.

[0015] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] like Figure 1-Figure 3 As shown, the electronic rearview mirror system provided by the embodiment of the present invention includes: a CPU, a display module and a camera, the camera is arranged on the vehicle body, the camera is connected to the CPU, and the CPU is connected to the display module;

[0017] The CPU includes an R5 core and an A55 core. The R5 core is used to acquire, share and display camera data. The A55 core is used to execute a detection algorithm and send the detection results to the R5 core. The R5 core displays the camera data and the detection results on a display module.

[0018] The CPU uses the CoreChi X9 CPU hardware platform, which has multi-domain and multi-operating system features. The framework is also applicable to any other hardware platform with multi-domain and multi-operating system features, and uses the multi-domain and multi-operating system features of the X9 platform to distribute the electronic rearview mirror function to the R5 core and A55 core.

[0019] The functional block diagram of the electronic rearview mirror system is as follows Figure 1 shown.

[0020] The display module is implemented using a display screen, which is divided into an upper half screen and a lower half screen for easy viewing.

[0021] The data flow operation process is as follows Figure 2 As shown, the camera sends data to the R5 core, the R5 core is connected to the display module, the R5 core runs the RTOS system, obtains the camera data, and shares it to the A55 core, and displays the obtained camera data directly on the display module.

[0022] The A55 core runs the Linux system and is equipped with the BSD algorithm. The camera data shared by the R5 core is detected by the BSD algorithm, and the detection result is sent to the R5 core, which displays it on the display module.

[0023] The software level block diagram is as follows Figure 3 As shown, two display screens are provided, and are divided into upper and lower screens respectively, which respectively display the camera data of the upper left right angle, the upper right right angle, the upper right fisheye and the lower right fisheye, wherein the R5 core collects the camera data of the upper right fisheye and the lower right fisheye, sends it to the A55 core for fisheye correction, and displays it on the lower half of the screen of LCD1 and LCD2 respectively, crops the camera data of the upper left right angle and the upper right right angle according to the preset value, determines whether to rotate according to the installation direction, and displays it on the upper half of the screen of LCD1 and LCD2, sends the camera data of the upper left right angle and the upper right right angle to the A55 core, is detected by the BSD detection algorithm, outputs X, Y, W, H and C, returns to the R5 core for frame drawing, and finally displays it on the upper half of the screen of LCD1 and LCD2.

[0024] The electronic rearview mirror system provided by the present invention comprises a CPU, a display module and a camera, wherein the CPU comprises an R5 core and an A55 core, wherein the R5 core is used for acquiring, sharing and displaying camera data, and the A55 core is used for executing a detection algorithm, and the camera has a fast display speed and a low image delay, and even if the A55 core fails to operate, the camera display can still be guaranteed by the R5 core, and a BSD algorithm is run on the A55 core, thereby ensuring the algorithm operation speed.

[0025] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An electronic rearview mirror system, characterized in that: include: CPU, display module and camera, the camera is arranged on the vehicle body, the camera is connected to the CPU, and the CPU is connected to the display module; The CPU includes an R5 core and an A55 core, wherein the R5 core is used to acquire, share and display camera data, and the A55 core is used to execute a detection algorithm and send the detection result to the R5 core, and the R5 core displays the camera data and the detection result to a display module; The R5 core runs the RTOS system, obtains the camera data, and shares it with the A55 core, and directly displays the obtained camera data on the display module; The A55 core runs the Linux system and is equipped with the BSD algorithm. The camera data shared by the R5 core is detected by the BSD algorithm, and the detection result is sent to the R5 core, and the R5 core displays it on the display module. The display module is provided with two display screens, and is divided into an upper and lower screen, respectively, for displaying the camera data of the upper left right angle, the upper right right angle, the upper right fisheye and the lower right fisheye, wherein the R5 core collects the camera data of the upper right fisheye and the lower right fisheye, sends it to the A55 core for fisheye correction, and displays it on the lower half screens of LCD1 and LCD2, respectively; the camera data of the upper left right angle and the upper right right angle are cropped according to preset values, and whether to rotate is determined according to the installation direction, and displayed on the upper half screens of LCD1 and LCD2; the camera data of the upper left right angle and the upper right right angle are sent to the A55 core, detected by the BSD detection algorithm, and X, Y, W, H and C are output, returned to the R5 core for framing, and finally displayed on the upper half screens of LCD1 and LCD2.

Images