CN111670384A - 一种光发射方法、装置及扫描*** - Google Patents

一种光发射方法、装置及扫描*** Download PDF

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Publication number
CN111670384A
CN111670384A CN201980005456.8A CN201980005456A CN111670384A CN 111670384 A CN111670384 A CN 111670384A CN 201980005456 A CN201980005456 A CN 201980005456A CN 111670384 A CN111670384 A CN 111670384A
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CN
China
Prior art keywords
pulse sequence
optical pulse
optical
emergent
light
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Pending
Application number
CN201980005456.8A
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English (en)
Inventor
颜悦
董帅
龙承辉
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SZ DJI Technology Co Ltd
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SZ DJI Technology Co Ltd
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Publication date
Application filed by SZ DJI Technology Co Ltd filed Critical SZ DJI Technology Co Ltd
Publication of CN111670384A publication Critical patent/CN111670384A/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
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/42—Simultaneous measurement of distance and other co-ordinates
    • 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
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
    • 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
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S17/26—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves wherein the transmitted pulses use a frequency-modulated or phase-modulated carrier wave, e.g. for pulse compression of received signals
    • 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
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • 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
    • G01S7/4817—Constructional features, e.g. arrangements of optical elements relating to scanning
    • 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
    • G01S7/483—Details of pulse systems
    • G01S7/484—Transmitters

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

Abstract

一种光发射方法、装置及扫描***，光发射方法包括：出射光脉冲序列(S110)；改变光脉冲序列的传播方向，以对周围环境进行扫描(S120)；根据光脉冲序列的扫描速度控制光脉冲序列的出射频率和/或出射功率(S130)。使得在满足人眼激光安全的前提下，能够获得较高的扫描点云密度。

Description

PCT国内申请，说明书已公开。

Claims (28)

  1. PCT国内申请，权利要求书已公开。
CN201980005456.8A 2019-01-09 2019-01-09 一种光发射方法、装置及扫描*** Pending CN111670384A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/071024 WO2020142941A1 (zh) 2019-01-09 2019-01-09 一种光发射方法、装置及扫描***

Publications (1)

Publication Number Publication Date
CN111670384A true CN111670384A (zh) 2020-09-15

Family

ID=71520598

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201980005456.8A Pending CN111670384A (zh) 2019-01-09 2019-01-09 一种光发射方法、装置及扫描***

Country Status (3)

Country Link
US (1) US20210333370A1 (zh)
CN (1) CN111670384A (zh)
WO (1) WO2020142941A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113325438A (zh) * 2021-05-12 2021-08-31 天地（常州）自动化股份有限公司 一种井下环境信息的采集生成***及方法
WO2022141098A1 (zh) * 2020-12-29 2022-07-07 深圳市大疆创新科技有限公司 探测方法和探测装置
WO2022217520A1 (zh) * 2021-04-14 2022-10-20 深圳市大疆创新科技有限公司 探测方法、装置、可移动平台及存储介质

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220137197A1 (en) * 2020-10-30 2022-05-05 Motional Ad Llc Robust eye safety for lidars

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101384941A (zh) * 2006-02-10 2009-03-11 松下电器产业株式会社 扫描单元以及图像显示装置
CN102347583A (zh) * 2010-07-21 2012-02-08 喜利得股份公司 用于调整激光功率的激光器和方法
CN102713723A (zh) * 2010-01-13 2012-10-03 日本电气株式会社 影像投影装置以及影像投影方法
CN103119805A (zh) * 2010-02-24 2013-05-22 爱尔康手术激光股份有限公司 重复率根据扫描速度可调的高功率飞秒激光器
WO2018055449A2 (en) * 2016-09-20 2018-03-29 Innoviz Technologies Ltd. Lidar systems and methods
CN108351402A (zh) * 2015-10-06 2018-07-31 日本先锋公司 光控制装置、控制方法、程序和存储介质

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101384941A (zh) * 2006-02-10 2009-03-11 松下电器产业株式会社 扫描单元以及图像显示装置
CN102713723A (zh) * 2010-01-13 2012-10-03 日本电气株式会社 影像投影装置以及影像投影方法
CN103119805A (zh) * 2010-02-24 2013-05-22 爱尔康手术激光股份有限公司 重复率根据扫描速度可调的高功率飞秒激光器
CN102347583A (zh) * 2010-07-21 2012-02-08 喜利得股份公司 用于调整激光功率的激光器和方法
CN108351402A (zh) * 2015-10-06 2018-07-31 日本先锋公司 光控制装置、控制方法、程序和存储介质
WO2018055449A2 (en) * 2016-09-20 2018-03-29 Innoviz Technologies Ltd. Lidar systems and methods

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022141098A1 (zh) * 2020-12-29 2022-07-07 深圳市大疆创新科技有限公司 探测方法和探测装置
WO2022217520A1 (zh) * 2021-04-14 2022-10-20 深圳市大疆创新科技有限公司 探测方法、装置、可移动平台及存储介质
CN113325438A (zh) * 2021-05-12 2021-08-31 天地（常州）自动化股份有限公司 一种井下环境信息的采集生成***及方法

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WO2020142941A1 (zh) 2020-07-16
US20210333370A1 (en) 2021-10-28

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