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1. WO2020061967 - RANGING DEVICE AND TIME MEASURING METHOD BASED ON RANGING DEVICE

Publication Number WO/2020/061967
Publication Date 02.04.2020
International Application No. PCT/CN2018/108149
International Filing Date 27.09.2018
IPC
G01S 17/10 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
06Systems determining position data of a target
08for measuring distance only
10using transmission of interrupted, pulse-modulated waves
G01S 7/484 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
48of systems according to group G01S17/58
483Details of pulse systems
484Transmitters
G01S 7/486 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
48of systems according to group G01S17/58
483Details of pulse systems
486Receivers
G01S 7/489 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
48of systems according to group G01S17/58
483Details of pulse systems
486Receivers
489Gain of receiver varied automatically during pulse-recurrence period
CPC
G01S 17/10
GPHYSICS
01MEASURING; TESTING
SRADIO 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
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
06Systems determining position data of a target
08for measuring distance only
10using transmission of interrupted pulse-modulated waves
G01S 7/484
GPHYSICS
01MEASURING; TESTING
SRADIO 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
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
483Details of pulse systems
484Transmitters
G01S 7/486
GPHYSICS
01MEASURING; TESTING
SRADIO 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
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
483Details of pulse systems
486Receivers
G01S 7/489
GPHYSICS
01MEASURING; TESTING
SRADIO 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
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
483Details of pulse systems
486Receivers
489Gain of receiver varied automatically during pulse-recurrence period
Applicants
  • 深圳市大疆创新科技有限公司 SZ DJI TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 刘祥 LIU, Xiang
  • 洪小平 HONG, Xiaoping
Agents
  • 北京市磐华律师事务所 P. C. & ASSOCIATES
Priority Data
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) RANGING DEVICE AND TIME MEASURING METHOD BASED ON RANGING DEVICE
(FR) DISPOSITIF DE TÉLÉMÉTRIE ET PROCÉDÉ DE MESURE DE TEMPS BASÉ SUR UN DISPOSITIF DE TÉLÉMÉTRIE
(ZH) 一种测距装置以及基于测距装置的时间测量方法
Abstract
(EN)
A ranging device, comprising an ambient light sensor (150), a comparison circuit (130), and an operational circuit (160). A plurality of preset thresholds is arranged in parallel in the comparison circuit (130); the comparison circuit (130) is configured to receive an electrical signal obtained by processing an optical signal, and extract time information of the preset thresholds triggered by the electrical signal; the ambient light sensor (150) is configured to obtain the intensity of an ambient light signal within a time period in which the time information is located; the operational circuit (160) is configured to select the time information of at least a part of the triggered preset thresholds from the time information of the triggered preset thresholds according to the intensity of the ambient light signal, and perform operation according to the selected time information. Also provided is a time measuring method based on the ranging device. By means of the ranging device, the time information of at least a part of the triggered preset thresholds can be selected, and operation can be performed according to the selected time information.
(FR)
L'invention concerne un dispositif de télémétrie, comprenant un capteur de lumière ambiante (150), un circuit de comparaison (130) et un circuit opérationnel (160). Une pluralité de seuils prédéfinis est agencée en parallèle dans le circuit de comparaison (130) ; le circuit de comparaison (130) est configuré pour recevoir un signal électrique obtenu par le traitement d'un signal optique et extraire des informations temporelles des seuils prédéfinis déclenchés par le signal électrique ; le capteur de lumière ambiante (150) est configuré pour obtenir l'intensité d'un signal de lumière ambiante dans une période de temps dans laquelle les informations temporelles sont situées ; le circuit opérationnel (160) est configuré pour sélectionner les informations temporelles d'au moins une partie des seuils prédéfinis déclenchés à partir des informations temporelles des seuils prédéfinis déclenchés en fonction de l'intensité du signal de lumière ambiante, et réaliser une opération en fonction des informations temporelles sélectionnées. L'invention concerne également un procédé de mesure de temps basé sur le dispositif de télémétrie. Au moyen du dispositif de télémétrie, les informations temporelles d'au moins une partie des seuils prédéfinis déclenchés peuvent être sélectionnées, et l'opération peut être effectuée en fonction des informations temporelles sélectionnées.
(ZH)
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。
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