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Title:
MULTI-LINE LASER RADAR
Document Type and Number:
WIPO Patent Application WO/2019/129259
Kind Code:
A1
Abstract:
Provided is a multi-line laser radar (20, 30), comprising a first radar assembly (201, 301), wherein the first radar assembly (201, 301) comprises n lasers (21, 311, 312), an optical collimating unit (22, 315), a scanning rotating mirror (23, 321) and one detector (24, 331), n being greater than 1; each of the lasers (21, 311, 312) is used for emitting a laser beam to the optical collimating unit (22, 315); the optical collimating unit (22, 315) is used for collimating n laser beams, and the n collimated laser beams are emitted to a target reflecting mirror of the scanning rotating mirror (23, 321); the scanning rotating mirror (23, 321) comprises m reflecting mirrors (3211, 3212) rotating around a rotation shaft (3213), and a rotation plane of the rotation shaft (3213) is perpendicular to an arrangement direction of the n collimated laser beams, m being greater than 1; the target reflecting mirror is used for reflecting the n received collimated laser beams to a detection region of the first radar assembly (201, 301); and the detector (24, 331) is used for receiving an echo signal of the n reflected laser beams in the detection region. According to the multi-line laser radar (20, 30), a multi-line laser radar structure of "multiple-emission and single-reception" is provided, so that the signal crosstalk between detectors is avoided, the working performance is improved, and the costs are reduced.

Inventors:
FU LIDING (CN)
SHI GUANGYUAN (CN)
LI SONG (CN)
Application Number:
CN2018/125305
Publication Date:
July 04, 2019
Filing Date:
December 29, 2018
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G01S17/93; G01S7/481
Foreign References:
CN108061904A2018-05-22
CN103576209A2014-02-12
CN101356450A2009-01-28
CN105785343A2016-07-20
CN104898125A2015-09-09
CN103675831A2014-03-26
CN106371085A2017-02-01
US9086273B12015-07-21
CN201711469783A2017-12-29
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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