KR20220143393A - 라이다 장치 및 이의 제어 방법 - Google Patents
라이다 장치 및 이의 제어 방법 Download PDFInfo
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- KR20220143393A KR20220143393A KR1020210049847A KR20210049847A KR20220143393A KR 20220143393 A KR20220143393 A KR 20220143393A KR 1020210049847 A KR1020210049847 A KR 1020210049847A KR 20210049847 A KR20210049847 A KR 20210049847A KR 20220143393 A KR20220143393 A KR 20220143393A
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- light
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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
- G01S7/481—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
- 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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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- 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
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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
- G01S17/08—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
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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
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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
-
- 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
- G01S7/4802—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
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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
- G01S7/4808—Evaluating distance, position or velocity data
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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
- G01S7/483—Details of pulse systems
- G01S7/484—Transmitters
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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
- G01S7/483—Details of pulse systems
- G01S7/486—Receivers
- G01S7/4861—Circuits for detection, sampling, integration or read-out
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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
- G01S7/495—Counter-measures or counter-counter-measures using electronic or electro-optical means
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/1821—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors for rotating or oscillating mirrors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/22—Optical devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Optics & Photonics (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
Description
도 2는 본 발명의 실시예에 따른 라이다 장치의 반사경, 모터 및 인코더의 분해 사시도이다.
도 3은 본 발명의 실시예에 따른 라이다 장치에 있어서, 반사경의 특정 회전 위치에 따라 엔코더가 출력하는 검출 신호(a)와, 검출 신호에 따라 제어부가 출력하는 광원의 출사 신호(b)와, 검출 신호의 출력 구간 중 특정 구간 동안 광감지부가 반사광을 감지한 감지 신호(c)를 각각 도시한 그래프이다.
도 4는 본 발명의 실시예에 따른 라이다 장치의 제어 방법의 순서도이다.
120: 광감지부
130: 반사경
140: 모터
150: 엔코더
160: 제어부
Claims (9)
- 펄스 광을 출사하는 광원;
상기 펄스 광이 대상체에 반사되어 되돌아온 반사 광을 감지하는 광감지부;
복수의 반사면을 구비하며, 상기 펄스 광을 반사시켜 상기 대상체에 전달하고, 상기 반사 광을 반사시켜 상기 광감지부로 전달하는 반사경;
상기 반사경을 회전시키는 모터;
상기 반사경의 회전 위치를 검출하여 검출 신호를 출력하는 엔코더; 및
상기 검출 신호를 이용하여 상기 광원의 출사 타이밍과 상기 광감지부의 감지 시간을 제어하는 제어부
를 포함하는 라이다 장치.
- 제 1 항에 있어서,
상기 제어부는
상기 엔코더로부터 상기 검출 신호 입력 시 상기 광원에서 상기 펄스 광이 출사되도록 제어하는
라이다 장치.
- 제 2 항에 있어서,
상기 제어부는
상기 반사경의 일정 회전 위치 마다 상기 광원에서 상기 펄스 광이 출사되도록 제어하는
라이다 장치.
- 제 1 항에 있어서,
상기 제어부는
상기 검출 신호의 출력 구간 중 적어도 일부 구간 동안 상기 광감지부가 상기 반사 광을 감지하도록 제어하는
라이다 장치.
- 제 1 항에 있어서,
상기 반사경은
상기 복수의 반사면이 측면에 배치되는 다면체로 이루어지는
라이다 장치.
- 제 1 항에 있어서,
상기 반사경 및 상기 엔코더는
상기 모터의 회전 축에 결합되어 상기 회전 축과 함께 회전하는
라이다 장치.
- 제 1 항에 있어서,
상기 엔코더는
다극 자석 및 홀 센서를 포함하는 자기식 엔코더인
라이다 장치.
- 제 1 항에 있어서,
상기 엔코더는
복수의 슬릿이 형성된 슬릿 부재 및 포토 다이오드를 포함하는 광학식 엔코더인
라이다 장치.
- 광원이 펄스 광을 출사하는 단계;
반사경이 상기 펄스 광을 반사시켜 대상체에 전달하는 단계;
상기 펄스 광이 상기 대상체에 의해 반사되는 단계;
상기 반사경이 상기 대상체에 의해 반사된 반사광을 반사하여 광감지부로 전달하는 단계;
상기 광감지부가 상기 반사광을 감지하는 단계;
모터가 상기 반사경을 회전시키는 단계;
엔코더가 상기 반사경의 회전 위치를 검출하여 검출 신호를 출력하는 단계; 및
제어부가 상기 검출 신호를 이용하여 상기 광원의 출사 타이밍과 상기 광감지부의 감지 시간을 제어하는 단계
를 포함하는 라이다 장치의 제어 방법.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210049847A KR20220143393A (ko) | 2021-04-16 | 2021-04-16 | 라이다 장치 및 이의 제어 방법 |
| DE102022203805.3A DE102022203805A1 (de) | 2021-04-16 | 2022-04-14 | Lidarvorrichtung und Steuerverfahren dafür |
| CN202210395453.3A CN115220064B (zh) | 2021-04-16 | 2022-04-15 | 激光雷达装置及其控制方法 |
| US17/721,357 US20220334222A1 (en) | 2021-04-16 | 2022-04-15 | Lidar apparatus and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210049847A KR20220143393A (ko) | 2021-04-16 | 2021-04-16 | 라이다 장치 및 이의 제어 방법 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20220143393A true KR20220143393A (ko) | 2022-10-25 |
Family
ID=83447023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020210049847A Ceased KR20220143393A (ko) | 2021-04-16 | 2021-04-16 | 라이다 장치 및 이의 제어 방법 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20220334222A1 (ko) |
| KR (1) | KR20220143393A (ko) |
| CN (1) | CN115220064B (ko) |
| DE (1) | DE102022203805A1 (ko) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118131249A (zh) * | 2022-12-01 | 2024-06-04 | 上海禾赛科技有限公司 | 确定码盘状态的方法、角度测量方法和激光雷达 |
| CN116846152A (zh) * | 2023-05-30 | 2023-10-03 | 探维科技(苏州)有限公司 | 电机组件、激光雷达扫描系统以及激光雷达 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002199692A (ja) * | 2000-12-27 | 2002-07-12 | Minebea Co Ltd | ステッピングモータ及び、ステッピングモータ装置とその駆動方法 |
| JP2004212205A (ja) * | 2002-12-27 | 2004-07-29 | Olympus Corp | 角度検出装置、光信号スイッチシステムおよび情報記録再生システム |
| CN102338875B (zh) * | 2010-07-16 | 2013-12-04 | 李少勤 | 一种多线扫描前视防撞激光雷达装置及应用 |
| JP5729358B2 (ja) * | 2011-09-22 | 2015-06-03 | 株式会社リコー | 光ビームスキャナ及びレーザレーダユニット |
| JP6609144B2 (ja) * | 2015-09-10 | 2019-11-20 | キヤノン株式会社 | 光走査装置 |
| US10712446B1 (en) * | 2015-09-25 | 2020-07-14 | Apple Inc. | Remote sensing for detection and ranging of objects |
| JP6657897B2 (ja) * | 2015-12-10 | 2020-03-04 | 株式会社リコー | ミラー部材の加工方法 |
| KR101997095B1 (ko) * | 2016-07-22 | 2019-07-08 | 전자부품연구원 | 수평 분해능 및 영상획득 프레임이 제어되는 스캐닝 라이다 |
| KR102554215B1 (ko) * | 2016-09-20 | 2023-07-11 | 이노비즈 테크놀로지스 엘티디 | Lidar 시스템 및 방법 |
| US10267899B2 (en) * | 2017-03-28 | 2019-04-23 | Luminar Technologies, Inc. | Pulse timing based on angle of view |
| CN108646405A (zh) * | 2018-06-29 | 2018-10-12 | 中国科学院光电研究院 | 一种用于实现多线扫描的系统 |
| CN113260873A (zh) * | 2019-01-04 | 2021-08-13 | 布莱克莫尔传感器和分析有限责任公司 | 带有具有折射分面的可旋转多边形偏转器的lidar设备 |
| DE102019116015A1 (de) * | 2019-06-12 | 2020-12-17 | Maxon International Ag | Axialflussmotor mit redundanter Rotorlageerfassung für ein LIDAR-System |
| CN110346811B (zh) * | 2019-08-08 | 2022-05-06 | 上海禾赛科技有限公司 | 激光雷达及其探测装置 |
| US12468020B2 (en) * | 2019-12-27 | 2025-11-11 | Waymo Llc | Optical redirector device |
| US11668832B2 (en) * | 2020-01-31 | 2023-06-06 | Denso Corporation | LIDAR device and method for calculating distance to object |
-
2021
- 2021-04-16 KR KR1020210049847A patent/KR20220143393A/ko not_active Ceased
-
2022
- 2022-04-14 DE DE102022203805.3A patent/DE102022203805A1/de active Pending
- 2022-04-15 US US17/721,357 patent/US20220334222A1/en active Pending
- 2022-04-15 CN CN202210395453.3A patent/CN115220064B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022203805A1 (de) | 2022-10-20 |
| US20220334222A1 (en) | 2022-10-20 |
| CN115220064A (zh) | 2022-10-21 |
| CN115220064B (zh) | 2025-07-11 |
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