A vehicle anti-collision intelligent early warning device and early warning method

Abstract

The present invention relates to the field of automobile safety assisted driving, in particular to a vehicle anti-collision intelligent early warning device and early warning method, comprising a crossbeam installed at the center of the roof near the front windshield of the vehicle, and the center of the crossbeam is vertically A connecting rod is installed below, and the end of the connecting rod far away from the roof is equipped with a mounting platform, and the connecting rod divides the mounting platform into left and right sides, and a movable sliding table capable of moving along the length direction of the mounting platform is respectively installed on the two sides , and respectively install the driving device on the two moving platforms to drive the rotating platform to rotate. The binocular vision system automatically adjusts the baseline length and rotation angle according to the target, improves the accuracy and accuracy of ranging, and avoids the technical problem that the ranging target is lost and cannot be measured when the vehicle enters a curve.

Description

technical field [0001] The invention relates to the field of automobile safety assisted driving, in particular to an intelligent vehicle anti-collision early warning device and an early warning method. Background technique [0002] In the existing vehicle collision avoidance warning system, laser radar, monocular camera, binocular vision system and other devices are usually used to collect the information in front of the vehicle. In the system using the binocular vision system, the Chinese invention patent with the application number CN201711343501X discloses a vehicle-mounted intelligent front vehicle collision avoidance warning method based on the binocular vision system, which detects and monitors the vehicle ahead through the binocular vision system. track. However, when using this method for detection, due to the fixed baseline length of the binocular vision system, the error will change greatly when measuring the distance of targets at different distances, that is, th...

AI Technical Summary

Problems solved by technology

However, when using this method for detection, since the baseline length of the binocular vision system is fixed, the error will change greatly when measuring the distance of targets at different distances, that is, the error of measuring long-distance targets is larger than that of measuring close-range targets

At the same time, the binocular vision system of the system is fixed on the mounting frame and cannot be rotated, resulting in a fixed common field of view area of ​​the binocular vision system. If the target in front of the vehicle deviates from this area, such as: the vehicle enters a curve, the ranging target will be lost and the distance will be reduced. unfathomable

As a result, the accuracy of the front vehicle collision avoidance warning system decreases

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