New-generation laser radar linear array and area array switchable grating micro-servo system

Abstract

The invention discloses a new-generation laser radar (LiDAR) linear array and area array switchable grating micro-servo system, which belongs to the field of laser radars, and aims to solve the problems that an existing single laser radar cannot simultaneously have a linear array scanning mode and an area array scanning mode and the two modes cannot be mutually switched. The system comprises eightcomponents, namely a switch, a screw, a stepping motor, an end cover, a rotor, a grating, an area array binary optical device and a linear array binary optical device. The principle is shown in the figure, and the system has two different states. Figure a is an initial state linear array scanning mode. And after a user presses down the switch, the system is switched to the area array scanning mode in the other state in the picture b. And when the user presses the switch again, the system switches back to the linear array scanning mode of the graph c (the same state as the graph a). Flexible switching of linear array / area array modes is supported, the advantages of linear array and area array scanning modes are integrated, and the requirements for a large field angle and high resolution are met.

Description

technical field [0001] The invention belongs to the field of laser radar (LiDAR, Light Detection and Ranging, laser detection and ranging system), and relates to a new generation of laser radar linear array and area array scanning switchable grating micro-servo system. [0002] technical background [0003] At present, a single lidar cannot flexibly switch between the linear scan mode and the area scan mode. Among them, the line scan can obtain data with a large field of view, but the resolution is low, and the area scan can obtain high-resolution data, but the field of view is small. In order to solve the problem that a single laser radar has both linear array and area array scanning modes and the mutual switching between the two modes, the present invention designs a new generation of laser radar linear array and area array switchable grating micro-servo system. Contents of the invention [0004] The technical problem solved by the present invention is to provide a new g...

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a new generation of laser radar linear array and area array switchable grating micro-servo system to solve the problem that a single laser radar cannot have both linear array and area array scanning modes and to switch between the two modes, and improve the single The flexibility of LiDAR scanning makes it suitable for more application scenarios

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