WO2023135943A1 - 測定装置 - Google Patents

測定装置 Download PDF

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Publication number
WO2023135943A1
WO2023135943A1 PCT/JP2022/043367 JP2022043367W WO2023135943A1 WO 2023135943 A1 WO2023135943 A1 WO 2023135943A1 JP 2022043367 W JP2022043367 W JP 2022043367W WO 2023135943 A1 WO2023135943 A1 WO 2023135943A1
Authority
WO
WIPO (PCT)
Prior art keywords
exposure
light
area
measurement
areas
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/JP2022/043367
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
昌之 ▲高▼橋
健一 星
正俊 鈴木
晃志 伊多波
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.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing Co Ltd
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 Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Priority to JP2023573878A priority Critical patent/JPWO2023135943A1/ja
Priority to CN202280089183.1A priority patent/CN118613744A/zh
Priority to US18/729,370 priority patent/US20250085423A1/en
Priority to EP22920463.1A priority patent/EP4468035A4/en
Publication of WO2023135943A1 publication Critical patent/WO2023135943A1/ja
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
    • 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
    • G01S7/4814—Constructional features, e.g. arrangements of optical elements of transmitters alone
    • G01S7/4815—Constructional features, e.g. arrangements of optical elements of transmitters alone using multiple 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
    • 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
    • G01S17/42—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
    • 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
    • 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
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
    • G01S17/894—Three-dimensional [3D] imaging with simultaneous measurement of time-of-flight at a two-dimensional [2D] array of receiver pixels, e.g. time-of-flight cameras or flash lidar
    • 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

Definitions

  • the measuring device 1 shown in FIG. 1A is a ToF (Time of Flight) type device that measures the distance to an object in front.
  • a ToF Time of Flight
  • an indirect ToF camera is used.
  • the measuring device 1 is provided, for example, in a vehicle.
  • an exposure period 2 corresponding to an area (area 2) next to area 1 is set.
  • the pixel 221 of the imaging sensor 22 acquires the signal value S2 corresponding to the exposure amount of the reflected light in this exposure period 2 .
  • control unit 30 causes only the pixels 221 (light receiving elements PD) included in the exposure area 1 corresponding to the measurement area 1 among the five exposure areas 1 to 5 of the imaging unit 20 to perform exposure, and the exposure area 2 5 light receiving elements PD are not exposed (or the control unit 30 controls only the pixels 221 included in the exposure area 1 corresponding to the measurement area 1 among the five exposure areas 1 to 5 of the imaging unit 20. acquired, and the signals of the pixels 221 included in the exposure areas 2 to 5 are not acquired). That is, the imaging unit 20 images only the measurement area 1 and does not image the other measurement areas (measurement areas 2 to 5).
  • the control unit 30 exposes the exposure area 3 with the reflected light of the light emitted from the light emitting area 3. Since this exposure operation is the same as that for the exposure area 1, the explanation is omitted.
  • control unit 30 performs exposure in the order of exposure area 5 ⁇ exposure area 2 ⁇ exposure area 4. Based on the exposure result, the time calculation unit 36 calculates the arrival time Tx of the reflected light in each measurement area using Equation (1). The distance calculation unit 38 calculates the distance L to the object in each measurement area using Equation (2).

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)
PCT/JP2022/043367 2022-01-17 2022-11-24 測定装置 Ceased WO2023135943A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2023573878A JPWO2023135943A1 (https=) 2022-01-17 2022-11-24
CN202280089183.1A CN118613744A (zh) 2022-01-17 2022-11-24 测定装置
US18/729,370 US20250085423A1 (en) 2022-01-17 2022-11-24 Measurement device
EP22920463.1A EP4468035A4 (en) 2022-01-17 2022-11-24 MEASURING DEVICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-004991 2022-01-17
JP2022004991 2022-01-17

Publications (1)

Publication Number Publication Date
WO2023135943A1 true WO2023135943A1 (ja) 2023-07-20

Family

ID=87278924

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/043367 Ceased WO2023135943A1 (ja) 2022-01-17 2022-11-24 測定装置

Country Status (5)

Country Link
US (1) US20250085423A1 (https=)
EP (1) EP4468035A4 (https=)
JP (1) JPWO2023135943A1 (https=)
CN (1) CN118613744A (https=)
WO (1) WO2023135943A1 (https=)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120062705A1 (en) * 2010-09-03 2012-03-15 Ilia Ovsiannikov Overlapping charge accumulation depth sensors and methods of operating the same
WO2017141957A1 (ja) * 2016-02-17 2017-08-24 パナソニックＩｐマネジメント株式会社 距離測定装置
JP2019191126A (ja) 2018-04-27 2019-10-31 シャープ株式会社 光レーダ装置
WO2020137318A1 (ja) * 2018-12-26 2020-07-02 ソニーセミコンダクタソリューションズ株式会社 測定装置、測距装置および測定方法
WO2021229918A1 (ja) * 2020-05-15 2021-11-18 ソニーセミコンダクタソリューションズ株式会社 光学モジュールおよび距離測定装置
JP2021532368A (ja) * 2018-08-03 2021-11-25 オプシス テック リミテッド 分散型モジュール式ソリッドステートｌｉｄａｒシステム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113466882B (zh) * 2017-07-05 2026-03-24 奥斯特公司 光测距装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120062705A1 (en) * 2010-09-03 2012-03-15 Ilia Ovsiannikov Overlapping charge accumulation depth sensors and methods of operating the same
WO2017141957A1 (ja) * 2016-02-17 2017-08-24 パナソニックＩｐマネジメント株式会社 距離測定装置
JP2019191126A (ja) 2018-04-27 2019-10-31 シャープ株式会社 光レーダ装置
JP2021532368A (ja) * 2018-08-03 2021-11-25 オプシス テック リミテッド 分散型モジュール式ソリッドステートｌｉｄａｒシステム
WO2020137318A1 (ja) * 2018-12-26 2020-07-02 ソニーセミコンダクタソリューションズ株式会社 測定装置、測距装置および測定方法
WO2021229918A1 (ja) * 2020-05-15 2021-11-18 ソニーセミコンダクタソリューションズ株式会社 光学モジュールおよび距離測定装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4468035A4

Also Published As

Publication number Publication date
EP4468035A4 (en) 2025-05-07
JPWO2023135943A1 (https=) 2023-07-20
US20250085423A1 (en) 2025-03-13
EP4468035A1 (en) 2024-11-27
CN118613744A (zh) 2024-09-06

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