FR3144312B1 - Système de détection d’un véhicule automobile comportant un module d’émission et un module de réception d’un faisceau lumineux - Google Patents

Système de détection d’un véhicule automobile comportant un module d’émission et un module de réception d’un faisceau lumineux Download PDF

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Publication number
FR3144312B1
FR3144312B1 FR2214445A FR2214445A FR3144312B1 FR 3144312 B1 FR3144312 B1 FR 3144312B1 FR 2214445 A FR2214445 A FR 2214445A FR 2214445 A FR2214445 A FR 2214445A FR 3144312 B1 FR3144312 B1 FR 3144312B1
Authority
FR
France
Prior art keywords
light beam
data sequence
motor vehicle
module
sequence
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.)
Active
Application number
FR2214445A
Other languages
English (en)
Other versions
FR3144312A1 (fr
Inventor
Mickaël Mimoun
Sid Ahmed Beddar
Matheo Gourdon
Pierre Renaud
Geoffrey Piquard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Priority to FR2214445A priority Critical patent/FR3144312B1/fr
Priority to PCT/EP2023/086763 priority patent/WO2024133347A1/fr
Publication of FR3144312A1 publication Critical patent/FR3144312A1/fr
Application granted granted Critical
Publication of FR3144312B1 publication Critical patent/FR3144312B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G01S7/4863—Detector arrays, e.g. charge-transfer gates
    • 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
    • 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
    • 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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
    • B60Q2400/30—Daytime running lights [DRL], e.g. circuits or arrangements therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

L’invention concerne un système lumineux (1) d’un véhicule automobile, comportant un module d’émission (2) apte à émettre un faisceau lumineux visible (F1) modulé à partir d’une séquence de données modulante (Seq2) ; un module de réception (3) apte à recevoir un faisceau lumineux (F2) et à en extraire une séquence de données démodulées (Seq3), une unité de calcul (4) recevant une consigne de rapport cyclique (DC2) et agencée pour générer une séquence de données modulante (Seq2) à partir d’une séquence initiale de type binaire (Seq1) en diminuant des durées de pulsation (Tp’) de ladite séquence initiale; pour estimer des valeurs d’une fonction de corrélation (Fcorr) entre ladite séquence de données démodulée et ladite séquence de données modulante et pour déterminer un temps de vol (τ) séparant l’émission dudit faisceau lumineux modulé émis de la réception dudit faisceau lumineux reçu à partir des valeurs de la fonction de corrélation. Figure à publier avec l’abrégé : Fig. 1
FR2214445A 2022-12-23 2022-12-23 Système de détection d’un véhicule automobile comportant un module d’émission et un module de réception d’un faisceau lumineux Active FR3144312B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2214445A FR3144312B1 (fr) 2022-12-23 2022-12-23 Système de détection d’un véhicule automobile comportant un module d’émission et un module de réception d’un faisceau lumineux
PCT/EP2023/086763 WO2024133347A1 (fr) 2022-12-23 2023-12-19 Système de détection d'un véhicule automobile comportant un module d'émission et un module de réception d'un faisceau lumineux

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2214445A FR3144312B1 (fr) 2022-12-23 2022-12-23 Système de détection d’un véhicule automobile comportant un module d’émission et un module de réception d’un faisceau lumineux
FR2214445 2022-12-23

Publications (2)

Publication Number Publication Date
FR3144312A1 FR3144312A1 (fr) 2024-06-28
FR3144312B1 true FR3144312B1 (fr) 2024-12-13

Family

ID=85792692

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2214445A Active FR3144312B1 (fr) 2022-12-23 2022-12-23 Système de détection d’un véhicule automobile comportant un module d’émission et un module de réception d’un faisceau lumineux

Country Status (2)

Country Link
FR (1) FR3144312B1 (fr)
WO (1) WO2024133347A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8994925B2 (en) * 2012-03-27 2015-03-31 Pulsedlight, Inc. Optical distance measurement device
US9433065B2 (en) * 2014-11-05 2016-08-30 Stmicroelectronics (Research & Development) Limited Lighting system including time of flight ranging system
US11914037B2 (en) * 2018-01-31 2024-02-27 Robert Bosch Gmbh Lidar time-of-flight and intensity detection signal-path based on phase-coded multi-pulse transmission and single-bit oversampled matched filter detection
DE102019120743A1 (de) * 2018-07-31 2020-02-06 Maxim Integrated Products, Inc. Laufzeitsensoren und erfassungsverfahren

Also Published As

Publication number Publication date
WO2024133347A1 (fr) 2024-06-27
FR3144312A1 (fr) 2024-06-28

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