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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 (Huawei Administration Building, BantianLonggang Distric, Shenzhen Guangdong 9, 518129, CN)
SHI, Guangyuan (Huawei Administration Building, BantianLonggang Distric, Shenzhen Guangdong 9, 518129, CN)
LI, Song (Wuhan University, LuoJiaShan Bayi Road, Wuchang Distric, Wuhan City Hubei 2, 430072, CN)
Application Number:
CN2018/125305
Publication Date:
July 04, 2019
Filing Date:
December 29, 2018
Export Citation:
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Assignee:
HUAWEI TECHNOLOGIES CO., LTD. (Huawei Administration Building, BantianLonggang Distric, Shenzhen Guangdong 9, 518129, 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
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (A-1-102, He Jing Yuan Ji Men Li,Xueyuan Road,Haidian District, Beijing 8, 100088, CN)
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