Radar-based viewing angle automatic switching rear view system and method

Abstract

The invention discloses an automatic reversing visual angle switching rearview system and a method based on radars. The automatic reversing visual angle switching rearview system comprises a wide angle camera, three reversing radars, a judgment module, a processing module and a video output module, wherein the wide angle camera is installed just in the middle of the tail of an automobile; the three reversing radars are respectively installed on the left side, the middle and the right side of the tail of the automobile; the judgment module is used for judging and processing signals collected by all of the reversing radars; the processing module is used for outputting a wide angle video image according to a judging result that no obstacle exists behind the automobile, obtaining a video image of a rear right visual angle from an original video image according to a judging result that an obstacle exists behind the automobile on the right side, obtaining a video image of a depression angle from the original video image according to a judging result that an obstacle exists just behind the automobile and obtaining a video image of a rear left visual angle from the original video image according to a judging result that an obstacle exists behind the automobile on the left side; the video output module is used for outputting the video images. According to the automatic reversing visual angle switching rearview system, a driver can preferably know the condition behind the automobile, so that the probability of collision is reduced.

Description

technical field [0001] The invention belongs to an automobile parking assistance system, and in particular relates to a radar-based automatic switching rearview system and method. Background technique [0002] The rear view system is a parking assistance system that transmits the road environment information on the rear side of the car to the entertainment system for display through the camera installed on the trunk of the vehicle. During the reversing process, the user can judge the situation behind by observing the display information on the display screen, and can also guide the user's reversing operation through the trajectory line. Improve the safety of the user during parking. [0003] Since the horizontal angle of view of the camera of the reversing rearview system is about 120°, there are about 30° blind spots on the left and right sides of the car. During the reversing process, when there is an obstacle in the blind spot, the system cannot prompt the user that ther...

AI Technical Summary

Problems solved by technology

[0003] Since the horizontal angle of view of the camera of the reversing rearview system is about 120°, there are about 30° blind spots on the left and right sides of the car. During the reversing process, when there is an obstacle in the blind spot, the system cannot prompt the user that there is a collision. due to the constraints of the installation position of the camera, when the user is close to the obstacle car, the displayed distance does not match the actual distance, which will mislead the user

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