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A kind of lidar scanning method and lidar

A technology of laser radar and scanning method, which is applied in the direction of radio wave measurement systems and instruments, and can solve the problems of high production debugging requirements and complicated methods

Active Publication Date: 2021-10-08
LEISHEN INTELLIGENT SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the multi-light source and multi-field of view stitching scheme includes the stitching process of multiple fields of view, the method is complicated, and it has high requirements for production debugging

Method used

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  • A kind of lidar scanning method and lidar
  • A kind of lidar scanning method and lidar
  • A kind of lidar scanning method and lidar

Examples

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Comparison scheme
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Embodiment Construction

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0044] figure 1 It is a schematic flowchart of a lidar scanning method provided by an embodiment of the present invention. refer to figure 1 , the lidar scanning method includes:

[0045] S100, start.

[0046] Exemplarily, this step may include powering on the lidar, mode setting, parameter setting, and other preparations known to those skilled in the art before emitting the detection beam, which is not limited in this embodiment of the present invention.

[0047] S110. Alternately emit near-frame light beams ...

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Abstract

The invention discloses a laser radar scanning method and a laser radar. The scanning method of the laser radar includes: alternately emitting near-frame beams and far-frame beams according to a preset time ratio; wherein, the near-frame beams have a first field of view width A1 and a first pulse frequency F1, and the far-frame beams have The second field width A2 and the second pulse frequency F2; A1>A2, F1>F2. The technical solution provided by the embodiment of the present invention can realize the use of different field of view widths and pulse frequencies to meet the detection requirements of different detection distances by alternately emitting near-frame beams and far-frame beams. requirements.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of laser radar, and in particular, to a laser radar scanning method and a laser radar. Background technique [0002] Lidar is a radar system that emits laser beams to detect characteristic quantities such as the position and speed of targets. The working principle of the laser radar is: to transmit a detection signal (laser beam) to the target, and then compare the received signal reflected from the target (target echo, or echo signal) with the transmitted signal, and then perform appropriate processing. Obtain the relevant information of the target, such as target distance, azimuth, height, speed, attitude, and even shape parameters, so as to detect, track and identify the target. The performance indicators of lidar include detection distance, field of view width, angular resolution and frame refresh rate (also can be understood as pulse frequency). Taking the lidar based on time of f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/481
CPCG01S7/481
Inventor 胡小波沈俭
Owner LEISHEN INTELLIGENT SYST CO LTD