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1. WO2022042079 - LASER RADAR, TRANSMITTING MODULE THEREOF, RECEIVING MODULE THEREOF AND DETECTION METHOD THEREFOR

Publication Number WO/2022/042079
Publication Date 03.03.2022
International Application No. PCT/CN2021/105551
International Filing Date 09.07.2021
IPC
G01S 7/481 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
48of systems according to group G01S17/58
481Constructional features, e.g. arrangements of optical elements
G01S 17/42 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
06Systems determining position data of a target
42Simultaneous measurement of distance and other coordinates
CPC
G01S 17/42
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
06Systems determining position data of a target
42Simultaneous measurement of distance and other co-ordinates
G01S 7/4811
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
481Constructional features, e.g. arrangements of optical elements
4811common to transmitter and receiver
Applicants
  • 上海禾赛科技有限公司 HESAI TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 刘兴伟 LIU, Xingwei
  • 孙恺 SUN, Kai
  • 朱雪洲 ZHU, Xuezhou
  • 向少卿 XIANG, Shaoqing
Agents
  • 上海知锦知识产权代理事务所(特殊普通合伙) INTEBRIGHT LLP
Priority Data
202010901728.731.08.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) LASER RADAR, TRANSMITTING MODULE THEREOF, RECEIVING MODULE THEREOF AND DETECTION METHOD THEREFOR
(FR) RADAR LASER, SON MODULE DE TRANSMISSION, SON MODULE DE RÉCEPTION ET SON PROCÉDÉ DE DÉTECTION
(ZH) 激光雷达及其发射模组、接收模组、探测方法
Abstract
(EN) A laser radar (10), a transmitting module (11) thereof, a receiving module (12) thereof and a detection method therefor. The transmitting module (11) of the laser radar (10) comprises a plurality of laser devices (111-11n), wherein the light emission wavelengths of the laser devices (111-11n) comprise a first wavelength and a second wavelength, and the laser devices (111-11n) that are adapted for simultaneously emitting light have different light emission wavelengths. The receiving module (12) of the laser radar (10) comprises a plurality of detectors (121-12m), wherein each detector (121-12m) is adapted for receiving an echo beam formed by a target object (1x) reflecting a laser beam that is emitted by a corresponding laser device (111-11n) in the transmitting module (11). The capability to resist interference between a plurality of detectors (121-12m) can be improved, thereby effectively guaranteeing the signal receiving performance of the laser radar (10).
(FR) L'invention concerne un radar laser (10), son module de transmission (11), son module de réception (12) et son procédé de détection. Le module de transmission (11) du radar laser (10) comprend une pluralité de dispositifs laser (111-11n), les longueurs d'onde d'émission de lumière des dispositifs laser (111-11n) comprenant une première longueur d'onde et une seconde longueur d'onde et les dispositifs laser (111-11n) qui sont conçus pour émettre simultanément de la lumière ayant différentes longueurs d'onde d'émission de lumière. Le module de réception (12) du radar laser (10) comprend une pluralité de détecteurs (121-12m), chaque détecteur (121-12m) étant conçu pour recevoir un faisceau d'écho formé par un objet cible (1x) réfléchissant un faisceau laser qui est émis par un dispositif laser correspondant (111-11n) dans le module de transmission (11). La capacité de résister aux interférences entre une pluralité de détecteurs (121-12m) peut être améliorée, ce qui permet de garantir efficacement les performances de réception de signaux du radar laser (10).
(ZH) 激光雷达(10)及其发射模组(11)、接收模组(12)、探测方法,激光雷达(10)的发射模组(11)包括:多个激光器(111~11n),激光器(111~11n)的发光波长包括第一波长和第二波长,适于同时发光的激光器(111~11n)具备不同的发光波长;激光雷达(10)的接收模组(12)包括:多个探测器(121~12m),每个探测器(121~12m)适于接收发射模组(11)中对应的激光器(111~11n)发出的激光光束被目标物(1x)反射的回波光束。能够提高多个探测器(121~12m)之间的抗干扰能力,有效保障激光雷达(10)的信号接收性能。
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