CN111316130A - 一种测距装置以及基于测距装置的时间测量方法 - Google Patents

一种测距装置以及基于测距装置的时间测量方法 Download PDF

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CN111316130A
CN111316130A CN201880011266.2A CN201880011266A CN111316130A CN 111316130 A CN111316130 A CN 111316130A CN 201880011266 A CN201880011266 A CN 201880011266A CN 111316130 A CN111316130 A CN 111316130A
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circuit
signal
preset threshold
time information
operational amplifier
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CN111316130B (zh
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刘祥
洪小平
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SZ DJI Technology Co Ltd
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SZ DJI Technology Co Ltd
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • H03F3/08—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light
    • H03F3/087—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light with IC amplifier blocks
    • 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
    • G01S7/481—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
    • 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
    • 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
    • G01S7/4873—Extracting wanted echo signals, e.g. pulse detection by deriving and controlling a threshold value
    • 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
    • G01S7/489—Gain of receiver varied automatically during pulse-recurrence period
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
    • 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

Abstract

一种测距装置，包括：环境光传感器(150)、比较电路(130)和运算电路(160)，在比较电路(130)中并行设置有多个预设阈值；比较电路(130)，用于接收经光信号处理得到的电信号，提取电信号所触发的预设阈值的时间信息；环境光传感器(150)，用于获取时间信息所在时段内的环境光信号的强度；运算电路(160)用于根据环境光信号的强度，从触发的预设阈值的时间信息中，挑选出至少部分触发的预设阈值的时间信息，以及根据挑选出的时间信息进行运算。还提供了一种基于测距装置的时间测量方法。通过该测距装置，可以挑选出至少部分触发的预设阈值的时间信息，以及根据挑选出的时间信息进行运算。

Description

PCT国内申请，说明书已公开。

Claims (138)

  1. PCT国内申请，权利要求书已公开。
CN201880011266.2A 2018-09-27 2018-09-27 一种测距装置以及基于测距装置的时间测量方法 Active CN111316130B (zh)

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CN111830523A (zh) * 2020-07-24 2020-10-27 中国电子科技集团公司第四十四研究所 一种光电探测器飞行时间校正系统及方法
CN112711010A (zh) * 2021-01-26 2021-04-27 上海思岚科技有限公司 激光测距信号处理装置、激光测距设备及其对应的方法
CN114594493A (zh) * 2022-01-13 2022-06-07 杭州宏景智驾科技有限公司 激光雷达系统及其环境光感知方法
CN114859324A (zh) * 2022-07-05 2022-08-05 天津光电集团有限公司 一种利用tvs的激光雷达发射及检测电路
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
CN115436693A (zh) * 2022-08-22 2022-12-06 中国科学院合肥物质科学研究院 一种判断输入端高电压是否超出预设值的电压检测装置及方法
CN116979662A (zh) * 2023-09-22 2023-10-31 山东领傲电子科技有限公司 一种充电机充电异常检测系统

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US20200191957A1 (en) * 2018-12-18 2020-06-18 Didi Research America, Llc Transmitter having beam-shaping component for light detection and ranging (lidar)
US20220035035A1 (en) * 2020-07-31 2022-02-03 Beijing Voyager Technology Co., Ltd. Low cost range estimation techniques for saturation in lidar
US20220317267A1 (en) * 2021-04-02 2022-10-06 Luminar, Llc Reconstruction of pulsed signals
CN113699223B (zh) * 2021-10-29 2022-02-15 成都齐碳科技有限公司 纳米孔测序电路、测序方法及装置

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CN111830523A (zh) * 2020-07-24 2020-10-27 中国电子科技集团公司第四十四研究所 一种光电探测器飞行时间校正系统及方法
CN112711010A (zh) * 2021-01-26 2021-04-27 上海思岚科技有限公司 激光测距信号处理装置、激光测距设备及其对应的方法
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
CN114594493A (zh) * 2022-01-13 2022-06-07 杭州宏景智驾科技有限公司 激光雷达系统及其环境光感知方法
CN114859324A (zh) * 2022-07-05 2022-08-05 天津光电集团有限公司 一种利用tvs的激光雷达发射及检测电路
CN114859324B (zh) * 2022-07-05 2022-10-14 天津光电集团有限公司 一种利用tvs的激光雷达发射及检测电路
CN115436693A (zh) * 2022-08-22 2022-12-06 中国科学院合肥物质科学研究院 一种判断输入端高电压是否超出预设值的电压检测装置及方法
CN115436693B (zh) * 2022-08-22 2023-12-05 中国科学院合肥物质科学研究院 一种判断输入端高电压是否超出预设值的电压检测装置及方法
CN116979662A (zh) * 2023-09-22 2023-10-31 山东领傲电子科技有限公司 一种充电机充电异常检测系统
CN116979662B (zh) * 2023-09-22 2023-12-19 山东领傲电子科技有限公司 一种充电机充电异常检测系统

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