Automobile light adjusting system and method on basis of detecting uphill and downhill road surfaces through laser radar

Abstract

The invention relates to the technical field of automobiles, in particular to an automobile light adjusting system and method on the basis of detecting uphill and downhill road surfaces through laser radar. The automobile light adjusting system comprises headlamps, the laser radar for scanning the road surface in front of an automobile to obtain three-dimensional point cloud data, a processing unit for processing the three-dimensional point cloud data and obtaining a processing result, and a control unit for analyzing the processing result and obtaining the slop condition and the slop gradient of the road surface, and the control unit is connected with an upward-downward diming unit and controls the brightness of the headlamps. The invention further relates to the automobile light adjusting method. The automobile light adjusting method comprises the steps that the laser radar scans the road surface within a preset range in front of the automobile, and the three-dimensional point cloud data are obtained; the processing unit processes the three-dimensional point cloud data, and the processing result is acquired; the control unit analyzes the processing result, the slop condition and the slop gradient of the road surface are obtained, and a light height adjusting command is sent to the upward-downward diming unit; and the upward-downward diming unit receives and responds to the light height adjusting command so that the light can be adjusted. A road with a slope can be illuminated so that a driver can be reminded to look out, and the accident rate is decreased.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an automobile dimming system and method for detecting road slopes based on laser radar. Background technique [0002] Lidar is a radar system that emits laser beams to detect the position, speed and other characteristic quantities of the target. Its working principle is: to transmit a detection signal (laser beam) to the target, and then receive the signal reflected from the target (target echo) ) is compared with the transmitted signal, and after proper processing, the relevant information of the target can be obtained, such as target distance, azimuth, height, speed, attitude, and even shape parameters, so as to detect, track and identify the target. LiDAR is widely used in scanning and monitoring the size of target obstacles and the distance between them and other objects, as well as the running speed of target obstacles. [0003] At present, the application of laser rada...

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Problems solved by technology

However, the current application of LiDAR cannot realize this function.

[0004] In the prior art, there is a method of using the camera to scan and distinguish the road conditions. However, due to the weak light at night, the camera cannot accurately judge the road conditions, which increases the possibility of misjudgment, and the reliability is not good.

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