Laser radar

A technology of laser radar and laser, which is applied in the field of radar, can solve the problem of low scanning frame rate and achieve the effect of high frame rate

Pending Publication Date: 2022-04-26
LEISHEN INTELLIGENT SYST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of this application is to provide a laser radar to solve the problem that the existing laser radar can only realize one-dimensional scanning and the scanning frame rate is low by using the galvanometer scanning.

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Embodiment Construction

[0028] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0029] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. It should be noted that, in the case of no conflict, various features in the embodiments of the present application ma...

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Abstract

The invention provides a laser radar, and relates to the technical field of radars, the laser radar comprises a housing with a window, a mounting rack and a first motor, the mounting rack and the first motor are arranged in the housing, and the mounting rack is provided with a laser, a polygon prism assembly, a second motor and a receiving assembly. A detection light beam emitted by the laser is reflected by the polygon prism assembly and then is emitted from the window so as to carry out two-dimensional scanning on a target object, an echo light beam reflected by the target object returns to the polygon prism assembly and then enters the receiving assembly, and the laser and the receiving assembly are both located on the light incident side of the polygon prism assembly. On the basis of realizing two-dimensional scanning by adopting the polygon prism assembly, the polygon prism assembly is used as a scanning mirror, so that every time the polygon prism assembly rotates by a circle, a detection light beam emitted to the polygon prism assembly by a laser sequentially passes through a plurality of side surfaces of the polygon prism assembly to be reflected, and a plurality of scanning frames can be generated; compared with an existing galvanometer scanning mode, the frame rate is high.

Description

technical field [0001] The present application relates to the technical field of radar, in particular, to a laser radar. Background technique [0002] With the development of laser technology, laser scanning technology is more and more widely used in fields such as surveying, transportation, driver assistance and mobile robots. Lidar is a radar system that uses laser light to detect the target's position, speed and other characteristic quantities. Its working principle is to first send a detection beam to the target, and then compare the signal reflected from the target with the transmitted signal, and then perform appropriate processing. , you can get the distance, azimuth, height, speed, attitude, and even shape information of the target. [0003] The existing laser radar adopts the galvanometer horizontal scanning scheme, which can only realize one-dimensional scanning through the galvanometer rotation. At the same time, since the galvanometer rotates only one scan frame...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/481
CPCG01S7/4817
Inventor 胡小波刘颖冯洪亮
Owner LEISHEN INTELLIGENT SYST CO LTD
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