CN112236687A - 一种探测电路、探测方法及测距装置、移动平台 - Google Patents
一种探测电路、探测方法及测距装置、移动平台 Download PDFInfo
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- CN112236687A CN112236687A CN201980008851.1A CN201980008851A CN112236687A CN 112236687 A CN112236687 A CN 112236687A CN 201980008851 A CN201980008851 A CN 201980008851A CN 112236687 A CN112236687 A CN 112236687A
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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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Abstract
一种探测电路(130)、探测方法及测距装置(200)、移动平台。探测电路(130)包括：比较单元，用于接收由光脉冲信号转化得到的电脉冲信号并将电脉冲信号与阈值集合进行比较运算，采集与电脉冲信号对应的时间信息，其中，阈值集合中的各阈值按照从小到大的顺序分割为多个阈值组，在每个阈值组中至少包含一个阈值；判断单元，用于根据电脉冲信号所触发的阈值组中的最小值以及噪声水平，筛选出属于非噪声的时间信息；计算单元，用于根据筛选出的时间信息计算电脉冲信号的脉冲信息。通过对预设阈值进行分组，从而优化TDC的最低阈值使得不同环境光照噪声水平下，激光测距***可达到最广的探测量程。
Description
PCT国内申请，说明书已公开。
Claims (28)
- PCT国内申请，权利要求书已公开。
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2019/085221 WO2020220275A1 (zh) | 2019-04-30 | 2019-04-30 | 一种探测电路、探测方法及测距装置、移动平台 |
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| CN112236687A true CN112236687A (zh) | 2021-01-15 |
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| CN (1) | CN112236687A (zh) |
| WO (1) | WO2020220275A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022206031A1 (zh) * | 2021-03-31 | 2022-10-06 | 上海禾赛科技有限公司 | 确定噪声水平的方法、激光雷达以及测距方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180259625A1 (en) * | 2017-03-10 | 2018-09-13 | Sensl Technologies Ltd. | LiDAR Readout Circuit |
| US20180284229A1 (en) * | 2017-03-29 | 2018-10-04 | SZ DJI Technology Co., Ltd. | Light detecting and ranging (lidar) signal processing circuitry |
| WO2018176288A1 (zh) * | 2017-03-29 | 2018-10-04 | 深圳市大疆创新科技有限公司 | 一种激光雷达以及基于激光雷达的时间测量方法 |
| CN109085606A (zh) * | 2017-06-14 | 2018-12-25 | 欧姆龙汽车电子株式会社 | 测距装置 |
| CN109597057A (zh) * | 2018-12-06 | 2019-04-09 | 苏州镭图光电科技有限公司 | 一种激光回波测距方法及测距装置 |
| CN109669188A (zh) * | 2019-01-17 | 2019-04-23 | 杜鑫 | 多沿触发时间鉴别方法和脉冲式激光测距方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207601308U (zh) * | 2016-08-05 | 2018-07-10 | 上海思岚科技有限公司 | 一种激光测距装置 |
| EP3455645A4 (en) * | 2017-07-20 | 2019-04-24 | SZ DJI Technology Co., Ltd. | SYSTEMS AND METHOD FOR OPTICAL SPACING MEASUREMENT |
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2019
- 2019-04-30 CN CN201980008851.1A patent/CN112236687A/zh active Pending
- 2019-04-30 WO PCT/CN2019/085221 patent/WO2020220275A1/zh active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180259625A1 (en) * | 2017-03-10 | 2018-09-13 | Sensl Technologies Ltd. | LiDAR Readout Circuit |
| US20180284229A1 (en) * | 2017-03-29 | 2018-10-04 | SZ DJI Technology Co., Ltd. | Light detecting and ranging (lidar) signal processing circuitry |
| WO2018176288A1 (zh) * | 2017-03-29 | 2018-10-04 | 深圳市大疆创新科技有限公司 | 一种激光雷达以及基于激光雷达的时间测量方法 |
| CN109085606A (zh) * | 2017-06-14 | 2018-12-25 | 欧姆龙汽车电子株式会社 | 测距装置 |
| CN109597057A (zh) * | 2018-12-06 | 2019-04-09 | 苏州镭图光电科技有限公司 | 一种激光回波测距方法及测距装置 |
| CN109669188A (zh) * | 2019-01-17 | 2019-04-23 | 杜鑫 | 多沿触发时间鉴别方法和脉冲式激光测距方法 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022206031A1 (zh) * | 2021-03-31 | 2022-10-06 | 上海禾赛科技有限公司 | 确定噪声水平的方法、激光雷达以及测距方法 |
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| WO2020220275A1 (zh) | 2020-11-05 |
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