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WO2014175502A3 - 광 신호를 이용한 거리 측정 방법 및 장치 - Google Patents

광 신호를 이용한 거리 측정 방법 및 장치 Download PDF

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Publication number
WO2014175502A3
WO2014175502A3 PCT/KR2013/004703 KR2013004703W WO2014175502A3 WO 2014175502 A3 WO2014175502 A3 WO 2014175502A3 KR 2013004703 W KR2013004703 W KR 2013004703W WO 2014175502 A3 WO2014175502 A3 WO 2014175502A3
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WO
WIPO (PCT)
Prior art keywords
distance
signals
phase difference
measuring
optical signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2013/004703
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English (en)
French (fr)
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WO2014175502A2 (ko
Inventor
김태민
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Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US14/367,045 priority Critical patent/US9709669B2/en
Priority to CN201380075871.3A priority patent/CN105518484B/zh
Publication of WO2014175502A2 publication Critical patent/WO2014175502A2/ko
Publication of WO2014175502A3 publication Critical patent/WO2014175502A3/ko
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • G01S7/486—Receivers
    • G01S7/4868—Controlling received signal intensity 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
    • 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
    • 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
    • G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S17/36—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal
    • 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
    • G01S7/4915—Time delay measurement, e.g. operational details for pixel components; Phase measurement
    • 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
    • G01S17/18—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves wherein range gates are used
    • 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

Landscapes

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

Abstract

본 발명은 광 신호의 위상차이를 이용한 거리 측정 방법 및 장치로서, 거리 측정 방법은 측정 대상에서 반사된 복수개의 신호를 셔터의 동작을 통해 서로 다른 위상을 기준으로 수신하는 단계, 상기 서로 다른 위상을 기준으로 수신한 상기 복수개의 신호를 기초로 송신 신호와 수신 신호의 위상 차이를 산출하는 단계, 상기 위상 차이를 기초로 상기 측정 대상과 거리 측정 장치 사이의 거리를 산출하는 단계를 포함하되, 상기 복수개의 신호는 동일한 주파수, 동일한 진폭을 가진 신호일 수 있다. 따라서, 송신 신호와 수신 신호 사이의 정확한 위상의 차이를 산출하여 주변 객체와의 거리를 정확하게 인식할 수 있다.
PCT/KR2013/004703 2013-04-23 2013-05-29 광 신호를 이용한 거리 측정 방법 및 장치 Ceased WO2014175502A2 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/367,045 US9709669B2 (en) 2013-04-23 2013-05-29 Distance measuring method and equipment using optical signal
CN201380075871.3A CN105518484B (zh) 2013-04-23 2013-05-29 利用光信号的距离测定方法及装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020130044833A KR101357120B1 (ko) 2013-04-23 2013-04-23 광 신호를 이용한 거리 측정 방법 및 장치
KR10-2013-0044833 2013-04-23

Publications (2)

Publication Number Publication Date
WO2014175502A2 WO2014175502A2 (ko) 2014-10-30
WO2014175502A3 true WO2014175502A3 (ko) 2015-05-07

Family

ID=50269565

Family Applications (1)

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PCT/KR2013/004703 Ceased WO2014175502A2 (ko) 2013-04-23 2013-05-29 광 신호를 이용한 거리 측정 방법 및 장치

Country Status (4)

Country Link
US (1) US9709669B2 (ko)
KR (1) KR101357120B1 (ko)
CN (1) CN105518484B (ko)
WO (1) WO2014175502A2 (ko)

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KR101654665B1 (ko) * 2015-01-16 2016-09-06 김태민 서로 다른 파장의 광신호를 이용한 거리 측정 방법 및 장치
KR102278387B1 (ko) * 2015-07-07 2021-07-16 주식회사 만도 거리 산출 장치, 거리 산출 방법, 운전 지원 장치 및 운전 지원 시스템
KR102523972B1 (ko) * 2015-10-27 2023-04-20 삼성전자주식회사 광 셔터를 포함하는 3차원 깊이 센서를 이용한 거리측정방법
KR102610830B1 (ko) * 2015-12-24 2023-12-06 삼성전자주식회사 거리 정보를 획득하는 방법 및 디바이스
US10838062B2 (en) * 2016-05-24 2020-11-17 Veoneer Us, Inc. Direct detection LiDAR system and method with pulse amplitude modulation (AM) transmitter and quadrature receiver
CN108345000A (zh) * 2017-01-24 2018-07-31 北醒（北京）光子科技有限公司 一种具有面阵光电传感器的探测方法
CN110612465B (zh) * 2017-05-10 2022-03-08 杰拉德·迪尔克·施密茨 扫描反射镜系统和方法
US10534084B2 (en) 2017-07-27 2020-01-14 Blackmore Sensors & Analytics, Llc Method and system for using square wave digital chirp signal for optical chirped range detection
US11460550B2 (en) 2017-09-19 2022-10-04 Veoneer Us, Llc Direct detection LiDAR system and method with synthetic doppler processing
US10613200B2 (en) 2017-09-19 2020-04-07 Veoneer, Inc. Scanning lidar system and method
US10838043B2 (en) 2017-11-15 2020-11-17 Veoneer Us, Inc. Scanning LiDAR system and method with spatial filtering for reduction of ambient light
US10684370B2 (en) 2017-09-29 2020-06-16 Veoneer Us, Inc. Multifunction vehicle detection system
US11194022B2 (en) 2017-09-29 2021-12-07 Veoneer Us, Inc. Detection system with reflection member and offset detection array
US11585901B2 (en) 2017-11-15 2023-02-21 Veoneer Us, Llc Scanning lidar system and method with spatial filtering for reduction of ambient light
KR102150098B1 (ko) * 2018-03-27 2020-08-31 국방과학연구소 Lrgi 센서를 이용하여 표적의 거리를 추정하는 방법 및 장치
US11474218B2 (en) 2019-07-15 2022-10-18 Veoneer Us, Llc Scanning LiDAR system and method with unitary optical element
US11579257B2 (en) 2019-07-15 2023-02-14 Veoneer Us, Llc Scanning LiDAR system and method with unitary optical element
US11313969B2 (en) 2019-10-28 2022-04-26 Veoneer Us, Inc. LiDAR homodyne transceiver using pulse-position modulation
CN110850426B (zh) * 2019-11-20 2022-02-11 浙江光珀智能科技有限公司 一种tof深度相机
JP7241710B2 (ja) * 2020-02-03 2023-03-17 株式会社ソニー・インタラクティブエンタテインメント 位相差算出装置、位相差算出方法およびプログラム
US12044800B2 (en) 2021-01-14 2024-07-23 Magna Electronics, Llc Scanning LiDAR system and method with compensation for transmit laser pulse effects
US11326758B1 (en) 2021-03-12 2022-05-10 Veoneer Us, Inc. Spotlight illumination system using optical element
US11732858B2 (en) 2021-06-18 2023-08-22 Veoneer Us, Llc Headlight illumination system using optical element
US12092278B2 (en) 2022-10-07 2024-09-17 Magna Electronics, Llc Generating a spotlight
US12228653B2 (en) 2022-10-07 2025-02-18 Magna Electronics, Llc Integrating a sensing system into headlight optics
US12202396B1 (en) 2023-12-19 2025-01-21 Magna Electronics, Llc Line-scan-gated imaging for LiDAR headlight

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Also Published As

Publication number Publication date
KR101357120B1 (ko) 2014-02-05
WO2014175502A2 (ko) 2014-10-30
US9709669B2 (en) 2017-07-18
CN105518484A (zh) 2016-04-20
US20150301162A1 (en) 2015-10-22
CN105518484B (zh) 2018-03-30

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