CN115136025A - 一种激光探测系统及车辆 - Google Patents

一种激光探测系统及车辆 Download PDF

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Publication number
CN115136025A
CN115136025A CN202080096875.XA CN202080096875A CN115136025A CN 115136025 A CN115136025 A CN 115136025A CN 202080096875 A CN202080096875 A CN 202080096875A CN 115136025 A CN115136025 A CN 115136025A
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CN
China
Prior art keywords
optical signal
echo
laser
assembly
grating
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Pending
Application number
CN202080096875.XA
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English (en)
Inventor
赵文
熊伟
谢承志
晏蕾
李军
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
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Publication of CN115136025A publication Critical patent/CN115136025A/zh
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4912—Receivers
    • G01S7/4918—Controlling received signal intensity, gain or exposure of sensor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4912—Receivers
    • G01S7/4913—Circuits for detection, sampling, integration or read-out
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
    • G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

一种激光探测系统及车辆，可应用于自动驾驶或网联车等领域，用于解决现有技术中因激光器温漂的影响导致环境光对激光探测系统的干扰。该激光探测系统包括：激光器用于向探测区域发射激光束；光栅组件用于对来自探测区域的光信号进行分光，得到不同中心波长的第一光谱，并将光信号的光能量集中在中心波长等于激光束的波长的第一光谱上，得到第一回波光信号，向探测组件传输第一回波光信号，第一回波光信号的光谱宽度小于光信号的光谱宽度，第一回波光信号是激光束被探测区域中目标反射回来的信号；探测组件用于将接收到的来自光栅组件的第一回波光信号转为第一回波电信号后进行存储。如此，可以降低环境光对激光探测系统的干扰。

Description

PCT国内申请，说明书已公开。

Claims (13)

  1. PCT国内申请，权利要求书已公开。
CN202080096875.XA 2020-02-28 2020-02-28 一种激光探测系统及车辆 Pending CN115136025A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/077277 WO2021168832A1 (zh) 2020-02-28 2020-02-28 一种激光探测系统及车辆

Publications (1)

Publication Number Publication Date
CN115136025A true CN115136025A (zh) 2022-09-30

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EP (1) EP4113162A4 (zh)
CN (1) CN115136025A (zh)
WO (1) WO2021168832A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113820692B (zh) * 2021-09-14 2023-08-25 上海星秒光电科技有限公司 一种多线激光雷达
CN113640819A (zh) * 2021-09-15 2021-11-12 上海禾赛科技有限公司 激光雷达
CN114152591B (zh) * 2021-12-03 2024-02-13 中国电子科技集团公司第三十四研究所 级联光纤光栅传感阵列的位置及波长解调系统和方法
CN114604296B (zh) * 2022-03-04 2023-10-31 中车青岛四方机车车辆股份有限公司 一种磁悬浮列车的定位系统及方法

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US5200792A (en) * 1989-08-31 1993-04-06 Nec Corporation Device for obtaining distance information from an object by instantaneously illuminating the object by a light beam
US6882409B1 (en) * 2003-06-25 2005-04-19 Lockheed Martin Corporation Multi-spectral LADAR
JP2011203156A (ja) * 2010-03-26 2011-10-13 Dainippon Screen Mfg Co Ltd 距離測定装置
CN102323596A (zh) * 2011-06-08 2012-01-18 西安理工大学 基于光栅技术分光结构的转动拉曼激光雷达系统
CN104597436B (zh) * 2015-01-15 2017-08-11 北京理工大学 一种应用于成像激光雷达的光谱分光装置
JP6857734B2 (ja) * 2017-07-18 2021-04-14 パイオニア株式会社 光学装置
JPWO2019031328A1 (ja) * 2017-08-07 2020-08-06 パイオニア株式会社 光学装置
CN208654324U (zh) * 2018-08-15 2019-03-26 武汉煜炜光学科技有限公司 一种高接收灵敏度的激光测距仪
CN109188400A (zh) * 2018-10-11 2019-01-11 上海禾赛光电科技有限公司 激光雷达

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EP4113162A1 (en) 2023-01-04
EP4113162A4 (en) 2023-04-26

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