Lidar sensing system and lidar sensing system detecting method

Abstract

The invention discloses a lidar sensing system and a lidar sensing system detecting method. The system includes a center lidar used for detecting medium and long view fields, and two blind area lidarsused for performing close view field detection and left and right view field detection. The system is advantaged in that long and short range fields and left and right view fields can be detected, the view field blind area is avoided, and detection accuracy is improved.

Description

technical field [0001] The invention relates to the detection field, in particular to a laser radar perception system and a laser radar system detection method. 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 first transmit the detection laser beam to the target, and then compare the received signal reflected from the target with the transmitted signal. After proper processing, the relevant information of the target can be obtained, such as target distance, azimuth, height, speed, attitude, and even shape and other parameters. [0003] On unmanned vehicles or vehicles that require driving assistance, 32-line lidar is usually used. Since the detection field of view of a single lidar is limited, it is impossible to detect short-range and medium-to-long distances at the same time, so in unmanned driving The left and right sides of the car fo...

AI Technical Summary

Problems solved by technology

[0003] On unmanned vehicles or vehicles that require driving assistance, 32-line lidar is usually used. Since the detection field of view of a single lidar is limited, it is impossible to detect short-range and medium-to-long distances at the same time, so in unmanned driving The left and right sides of the car form a certain blind area; in addition, there are not enough wiring harnesses for the center lidar, and there will still be missed detections

[0004] In order to solve the problem of blind spots and detection accuracy, there are two solutions. One is to increase the wiring harness of lidar to 64 or 128. The detection accuracy of this solution has been greatly improved, but it still cannot solve the problem of blind spots, and the cost is extremely high

[0005] In the prior art, there is still no solution that can not only solve the problem of blind spots, but also improve the detection accuracy

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