Scanning device for laser radar and laser radar

A scanning device and lidar technology, applied in the field of radar, can solve the problems of increasing the difficulty of spatial arrangement of components, increasing the volume of lidar, and jittering of point cloud data, so as to improve the quality of point cloud data, the regularity of point cloud data, The effect of improving accuracy

Pending Publication Date: 2020-08-25
HESAI TECH CO LTD
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  • Application Information

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Problems solved by technology

At present, improving the vertical resolution of lidar is a common demand, which requires more scanning and receiving channels in the vertical direction of lidar, and the common mechanical rotary lidar, by increasing the scanning and receiving channels in the vertical direction The number will increase the difficulty of spatial arrangement of components, and increase the volume and cost of laser radar. Therefore, laser radar can achieve low cost and miniaturization while improving vertical resolution is the main research direction
[0004] The technical solutions in the prior art generally use a low-beam laser array to cooperate with the rotation of the multi-faceted rotating mirror to exp

Method used

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[0064] The specific embodiments of the present application will be described in more detail below with reference to the accompanying drawings and embodiments, so that the solutions of the present application and the advantages of various aspects thereof can be better understood. However, the specific embodiments and examples described below are for illustrative purposes only and are not intended to limit the present application.

[0065] In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill i

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Abstract

The invention provides a laser radar. The laser radar comprises a scanning device, wherein the scanning device comprises a laser array used for emitting light beams, an emitting optical assembly usedfor collimating the light beams, a multi-surface rotating mirror reflecting the emitted light beams passing through the emitting optical assembly to form a scanning light beam, a receiving optical assembly and a receiver, wherein the laser array comprises a plurality of lasers arranged in multiple columns, the lasers in the adjacent columns are arranged in a staggered mode, the receiving optical assembly is used for converging the echo light beams reflected by the multi-surface rotating mirror, and the receiver is used for converting the echo light beam from the receiving optical assembly intoan electric signal. The laser radar is advantaged in that the vertical resolution of the laser radar and the quality of point cloud data are improved, and low cost and miniaturization are realized.

Description

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Claims

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Application Information

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Owner HESAI TECH CO LTD
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