CN117616304A - 测距装置以及测距方法 - Google Patents

测距装置以及测距方法 Download PDF

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Publication number
CN117616304A
CN117616304A CN202280045917.6A CN202280045917A CN117616304A CN 117616304 A CN117616304 A CN 117616304A CN 202280045917 A CN202280045917 A CN 202280045917A CN 117616304 A CN117616304 A CN 117616304A
Authority
CN
China
Prior art keywords
light
light emission
distance
unit
pulses
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.)
Pending
Application number
CN202280045917.6A
Other languages
English (en)
Chinese (zh)
Inventor
吉田智成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
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 Denso Corp filed Critical Denso Corp
Publication of CN117616304A publication Critical patent/CN117616304A/zh
Pending legal-status Critical Current

Links

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
    • 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
    • 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
    • G01S7/4808—Evaluating distance, position or velocity data
    • 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
    • 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
    • G01S7/4861—Circuits for detection, sampling, integration or read-out
    • G01S7/4863—Detector arrays, e.g. charge-transfer gates
    • 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
    • G01S7/4865—Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
    • 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
    • G01S7/487—Extracting wanted echo signals, e.g. pulse detection
    • 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
    • G01S7/487—Extracting wanted echo signals, e.g. pulse detection
    • G01S7/4873—Extracting wanted echo signals, e.g. pulse detection by deriving and controlling a threshold value

Landscapes

  • 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)
CN202280045917.6A 2021-07-09 2022-06-09 测距装置以及测距方法 Pending CN117616304A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021114259A JP2023010253A (ja) 2021-07-09 2021-07-09 測距装置および測距方法
JP2021-114259 2021-07-09
PCT/JP2022/023314 WO2023281978A1 (ja) 2021-07-09 2022-06-09 測距装置および測距方法

Publications (1)

Publication Number Publication Date
CN117616304A true CN117616304A (zh) 2024-02-27

Family

ID=84800536

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202280045917.6A Pending CN117616304A (zh) 2021-07-09 2022-06-09 测距装置以及测距方法

Country Status (4)

Country Link
US (1) US20240230899A9 (enExample)
JP (1) JP2023010253A (enExample)
CN (1) CN117616304A (enExample)
WO (1) WO2023281978A1 (enExample)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000266852A (ja) * 1999-03-19 2000-09-29 Minolta Co Ltd 測距装置
JP6417833B2 (ja) * 2014-10-01 2018-11-07 富士通株式会社 レーザ測距装置、プログラム及びレーザ測距装置の補正方法
EP3070494B1 (de) * 2015-03-18 2021-04-28 Leica Geosystems AG Elektrooptisches distanzmessverfahren und ebensolcher distanzmesser
US10613225B2 (en) * 2015-09-21 2020-04-07 Kabushiki Kaisha Toshiba Distance measuring device
WO2017165319A1 (en) * 2016-03-21 2017-09-28 Velodyne Lidar, Inc. Lidar based 3-d imaging with varying illumination intensity
US10969475B2 (en) * 2017-01-05 2021-04-06 Innovusion Ireland Limited Method and system for encoding and decoding LiDAR
WO2019197894A1 (en) * 2018-04-09 2019-10-17 Innoviz Technologies Ltd. Lidar systems and methods with internal light calibration
US20200088844A1 (en) * 2018-09-18 2020-03-19 Velodyne Lidar, Inc. Systems and methods for improving detection of a return signal in a light ranging and detection system with pulse encoding
WO2020121705A1 (ja) * 2018-12-14 2020-06-18 パナソニックセミコンダクターソリューションズ株式会社 撮像装置
US11506764B2 (en) * 2018-12-26 2022-11-22 Beijing Voyager Technology Co., Ltd. System and methods for ranging operations using multiple signals
JP7468999B2 (ja) * 2019-05-31 2024-04-16 ヌヴォトンテクノロジージャパン株式会社 マルチパス検出装置およびマルチパス検出方法
CN111896971B (zh) * 2020-08-05 2023-12-15 上海炬佑智能科技有限公司 Tof传感装置及其距离检测方法

Also Published As

Publication number Publication date
WO2023281978A1 (ja) 2023-01-12
US20240230899A9 (en) 2024-07-11
JP2023010253A (ja) 2023-01-20
US20240134045A1 (en) 2024-04-25

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