CN103299155A - 一种测距方法及系统 - Google Patents
一种测距方法及系统 Download PDFInfo
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- CN103299155A CN103299155A CN2011800020724A CN201180002072A CN103299155A CN 103299155 A CN103299155 A CN 103299155A CN 2011800020724 A CN2011800020724 A CN 2011800020724A CN 201180002072 A CN201180002072 A CN 201180002072A CN 103299155 A CN103299155 A CN 103299155A
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- CN
- China
- Prior art keywords
- frequency
- measurement
- signal
- measuring beam
- distance
- 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.)
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Classifications
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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
- G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S17/34—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Measurement Of Optical Distance (AREA)
Abstract
Description
Claims (9)
- 权 利 要 求 书1、 一种测距方法, 其特征在于, 所述方法包括以下步骤:利用频率随时间连续变化的调制信号调制测量光束;发射经调制的测量光束至被测物体;接收反射回来的测量光束并转化为测量信号;将调制信号于接收所述测量光束时的频率与所述测量信号的频率作比较, 确定出被测距离。
- 2、 如权利要求 1所述的测距方法, 其特征在于, 所述调制信号的频率随时 间线性变化。
- 3、 如权利要求 1或 2所述的测距方法, 其特征在于, 所述频率变化的速度 大于等于 10MHz/s。
- 4、一种测距系统, 包括用以发射测量光束的发射装置以及用以接收反射回 来的测量光束并转化为测量信号的接收装置, 其特征在于, 所述测距系统还包 括使所述测量光束的频率随时间连续变化的调制器、 将所述调制器于接收所述 测量光束时产生的调制信号的频率与所述测量信号的频率作比较的混频器以及 根据所比较的结果确定出被测距离的处理器。
- 5、 如权利要求 4所述的测距系统, 其特征在于, 所述混频器集成于所述接 收装置。
- 6、 如权利要求 5所述的测距系统, 其特征在于, 所述接收装置为雪崩光电 二极管。
- 7、 如权利要求 6所述的测距系统, 其特征在于, 所述调制器将其产生的调 制信号实时输送至所述接收装置, 与所述测量信号作减平均运算处理。
- 8、 如权利要求 4所述的测距系统, 其特征在于, 所述调制器具有一用以产 生所述调制信号的信号发生单元。
- 9、如权利要求 4~8中任一项所述的测距系统, 其特征在于, 经所述混频器 处理后的频率信号由放大器放大后输送至所述处理器。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2011/082114 WO2013067711A1 (zh) | 2011-11-11 | 2011-11-11 | 一种测距方法及系统 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103299155A true CN103299155A (zh) | 2013-09-11 |
CN103299155B CN103299155B (zh) | 2016-05-04 |
Family
ID=48288471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201180002072.4A Ceased CN103299155B (zh) | 2011-11-11 | 2011-11-11 | 一种测距方法及系统 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8964169B2 (zh) |
JP (1) | JP2014502359A (zh) |
CN (1) | CN103299155B (zh) |
DE (1) | DE112011101915T5 (zh) |
WO (1) | WO2013067711A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107132544A (zh) * | 2016-02-26 | 2017-09-05 | 凌通科技股份有限公司 | 距离检测方法以及装置 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105301599B (zh) * | 2015-10-13 | 2018-04-10 | 深圳市迈测科技股份有限公司 | 基于混合测尺的相位式激光测距方法及装置 |
CN110646806B (zh) * | 2018-06-26 | 2021-11-30 | 深圳市速腾聚创科技有限公司 | 激光雷达及激光雷达控制方法 |
CN108983212A (zh) * | 2018-07-27 | 2018-12-11 | 北京小米移动软件有限公司 | 距离检测方法及装置、电子设备、计算机可读存储介质 |
CN110596726B (zh) * | 2019-11-18 | 2020-03-03 | 深圳市迈测科技股份有限公司 | 一种通过激光测量待测目标距离的方法和装置 |
US11747474B2 (en) | 2019-11-18 | 2023-09-05 | Shenzhen Mileseey Technology Co., Ltd. | Systems and methods for laser distance measurement |
CN110716193B (zh) * | 2019-12-12 | 2020-05-08 | 深圳市迈测科技股份有限公司 | 一种信号生成的方法和装置 |
GB2620730A (en) * | 2022-07-11 | 2024-01-24 | Orca Computing Ltd | Single-photon emitter using frequency comb |
Citations (6)
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FR2286391A1 (fr) * | 1974-09-27 | 1976-04-23 | Snecma | Radar pour courtes distances |
DE10060908A1 (de) * | 1999-12-09 | 2001-06-13 | Denso Corp | FM-CW Radarsystem zur Messung der Distanz zu einem und der relativen Geschwindigkeit eines Ziels |
US20050078296A1 (en) * | 2002-01-19 | 2005-04-14 | Gerhard Bonnet | Imaging device for recording depth |
CN101210965A (zh) * | 2007-12-21 | 2008-07-02 | 当代天启技术(北京)有限公司 | 无线测距的方法、无线测距和定位的方法、设备及系统 |
CN101806897A (zh) * | 2009-02-17 | 2010-08-18 | 南京德朔实业有限公司 | 光电测距方法及其装置 |
CN101881833A (zh) * | 2009-05-07 | 2010-11-10 | 南京德朔实业有限公司 | 光电测距装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6064284A (ja) * | 1983-09-19 | 1985-04-12 | Matsushita Electric Ind Co Ltd | レ−ザ測距装置 |
US5125736A (en) * | 1990-11-13 | 1992-06-30 | Harris Corporation | Optical range finder |
JP3583906B2 (ja) * | 1996-07-15 | 2004-11-04 | 伊藤 弘昌 | 光学式距離計 |
JPH10246782A (ja) * | 1997-02-28 | 1998-09-14 | Suzuki Motor Corp | レーザ距離計 |
CN100390564C (zh) * | 2003-10-30 | 2008-05-28 | 吴鸿明 | 一种大量程、高精度无线电测量高度的方法 |
CN201130251Y (zh) * | 2007-11-27 | 2008-10-08 | 南京德朔实业有限公司 | 光电测距装置 |
WO2011083476A1 (en) | 2010-01-07 | 2011-07-14 | Shilat Optronics Ltd | Three dimensional measurement system |
CN102043154A (zh) * | 2010-11-29 | 2011-05-04 | 南通众联科技服务有限公司 | 一种激光测距仪 |
-
2011
- 2011-11-11 CN CN201180002072.4A patent/CN103299155B/zh not_active Ceased
- 2011-11-11 DE DE112011101915T patent/DE112011101915T5/de not_active Ceased
- 2011-11-11 JP JP2013542349A patent/JP2014502359A/ja active Pending
- 2011-11-11 US US13/704,664 patent/US8964169B2/en active Active
- 2011-11-11 WO PCT/CN2011/082114 patent/WO2013067711A1/zh active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2286391A1 (fr) * | 1974-09-27 | 1976-04-23 | Snecma | Radar pour courtes distances |
DE10060908A1 (de) * | 1999-12-09 | 2001-06-13 | Denso Corp | FM-CW Radarsystem zur Messung der Distanz zu einem und der relativen Geschwindigkeit eines Ziels |
US20050078296A1 (en) * | 2002-01-19 | 2005-04-14 | Gerhard Bonnet | Imaging device for recording depth |
CN101210965A (zh) * | 2007-12-21 | 2008-07-02 | 当代天启技术(北京)有限公司 | 无线测距的方法、无线测距和定位的方法、设备及系统 |
CN101806897A (zh) * | 2009-02-17 | 2010-08-18 | 南京德朔实业有限公司 | 光电测距方法及其装置 |
CN101881833A (zh) * | 2009-05-07 | 2010-11-10 | 南京德朔实业有限公司 | 光电测距装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107132544A (zh) * | 2016-02-26 | 2017-09-05 | 凌通科技股份有限公司 | 距离检测方法以及装置 |
Also Published As
Publication number | Publication date |
---|---|
US8964169B2 (en) | 2015-02-24 |
WO2013067711A1 (zh) | 2013-05-16 |
DE112011101915T5 (de) | 2013-07-11 |
JP2014502359A (ja) | 2014-01-30 |
US20140240693A1 (en) | 2014-08-28 |
CN103299155B (zh) | 2016-05-04 |
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Address after: 518000 Shenzhen, Nanshan District, Taoyuan, the streets of the left immortal Avenue, No. 1213, the crown of the industrial zone in the south wing of the 2 District, building 9, building 6, floor Applicant after: SHENZHEN MILESEEY TECHNOLOGY CO., LTD. Address before: 518000, room 315, building A, the Peach Garden science and Technology Innovation Park, Xixiang street, Shenzhen, Guangdong, Baoan District Applicant before: Mileseey Technology Inc |
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Inventor after: Chou Zhi Inventor before: Chou Zhi Inventor before: Li Weiming Inventor before: Wang Hongfei |
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Decision date of declaring invalidation: 20180720 Decision number of declaring invalidation: 36658 Granted publication date: 20160504 |