Laser radar system

Abstract

The invention discloses a laser radar system. The laser radar system comprises a laser emitter configured to emit laser, an emission optical system configured to perform shaping on the laser emitted by the laser emitter, an optical rotating mirror configured to scan the laser in a first direction, and a receiving optical system configured to receive an echo reflected in a diffuse reflection mode by a target object. In addition, the laser radar system further comprises a laser detector configured to convert the echo received by the receiving optical system into an electrical signal.

Description

technical field [0001] The present invention mainly relates to the technical field of laser radar, and in particular, relates to a laser radar system with full coverage of a target field of view. Background technique [0002] Lidar was originally used for surveying and mapping. With the continuous improvement of its technology and technology, the cost has gradually decreased, and the scope of application has gradually expanded. At this stage, the downstream application market of lidar mainly includes automatic driving, assisted driving, AGV navigation and collision avoidance, service robots, industrial surveying and mapping, resource exploration and other fields. In terms of technical principles, there are three main types: triangulation lidar, TOF (Time Of Flight, time of flight) series lidar, and phase lidar. TOF lidar is currently the mainstream, and most of the mechanical rotary and solid-state lidars fall into this category. It measures the distance by calculating the...

AI Technical Summary

Problems solved by technology

[0003] At present, the mechanically rotating multi-line laser radar widely used in the market has multiple single-point laser emitters and single-point detectors inside, similar to the stacking of multiple single-point laser rangefinders. The more lines, the more difficult it is to produce and adjust. The larger the process, the more complex the process and the higher the cost

Moreover, the space utilization rate in the system is low and the heat generation is large

In addition, its lidar point cloud (Point Cloud) is discretely distributed in the vertical direction, and there is a risk of missing detection for small-sized targets

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