EP3317692A1 - Ensemble détecteur destiné à la détection optique de gestes de commande de véhicules - Google Patents

Ensemble détecteur destiné à la détection optique de gestes de commande de véhicules

Info

Publication number
EP3317692A1
EP3317692A1 EP16731869.0A EP16731869A EP3317692A1 EP 3317692 A1 EP3317692 A1 EP 3317692A1 EP 16731869 A EP16731869 A EP 16731869A EP 3317692 A1 EP3317692 A1 EP 3317692A1
Authority
EP
European Patent Office
Prior art keywords
light source
marking
sensor device
camera
optics
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.)
Withdrawn
Application number
EP16731869.0A
Other languages
German (de)
English (en)
Inventor
Nadine Sticherling
Alexander Ziegler
Christof HACHE
Iko Lindic
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.)
Huf Huelsbeck and Fuerst GmbH and Co KG
Original Assignee
Huf Huelsbeck and Fuerst GmbH and Co KG
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 Huf Huelsbeck and Fuerst GmbH and Co KG filed Critical Huf Huelsbeck and Fuerst GmbH and Co KG
Publication of EP3317692A1 publication Critical patent/EP3317692A1/fr
Withdrawn legal-status Critical Current

Links

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
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
    • G01S7/4813—Housing arrangements
    • 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
    • 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
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
    • G01S17/894—3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
    • 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
    • G01S7/51—Display arrangements

Definitions

  • the invention relates to sensor arrangements, which for the optically supported detection of operating gestures or
  • the invention relates to sensor arrangements which detect and evaluate information resolved in terms of time and space in order to recognize the user's intention to operate.
  • DE 10 2008 025 669 A1 discloses an optical sensor which detects a gesture, whereupon a closing element of a vehicle is automatically moved.
  • WO 2008/116699 A2 relates to an optical sensor chip and relates to an optical anti-pinch device for monitoring a windowpane, sliding door or tailgate in a motor vehicle.
  • WO 2012/084222 Al discloses an optical sensor for
  • WO 2013/001084 A1 discloses a system for contactless
  • Invention is used.
  • the invention relates to a sensor arrangement which uses the time-of-flight (ToF) method, so that this will be briefly explained here.
  • ToF time-of-flight
  • the ToF method is a space area with a
  • Illuminated light source and recorded the duration of the reflected back from an object in the space area light with an area sensor should be arranged as close as possible to each other.
  • the distance between the sensor and the object to be measured can be determined from the linear relationship between the light transit time and the speed of light. To measure the time delay must be a synchronization between
  • the light source is pulsed in this concept.
  • the detection unit so the
  • Integration window of the individual pixels is synchronized with the time of the light source and in the integration period
  • this collection method is not a purely image-based acquisition method. It is determined at each pixel distance information, which by the temporal
  • the object of the invention is to provide an optical
  • the sensor device has a 3D camera, in particular a Time of Flight (ToF camera).
  • This camera has a pulsed light source and a light-sensitive one
  • the pulsed light source and the detection chip are coupled to a control circuit which coordinates and controls the light pulses and the evaluation of the sensor signals.
  • the pulsed light source can be a
  • Be laser diode coupled to a corresponding driver circuit for generating short pulses.
  • Both the pulse light source and the acquisition chip are arranged in a common space and to a
  • a further light source is formed in the construction space.
  • This light source is a marker light source and emits light in the visible spectrum.
  • this may be one or more high-power LEDs which, for example, emit / emit red, green or mixed-color light, predominantly in the range between 500 nm and 700 nm.
  • Marking light source is arranged and aligned in the space so that it is emitted in the visible spectrum emitted light in the detection range of the 3D camera.
  • the marker light source can radiate in a partial solid angle of the detection range or illuminate large parts of the detection range. In particular, a small solid angle range of the detection range can also be used
  • Marker light source is used to give the user a
  • Orientation of the user reduces operator errors. It In particular, it is avoided that gestures carried out outside the target area are erroneously recognized as an operator request. Also, this can be an area with
  • the sensor device is preferably accommodated overall in a uniform housing, that is to say with a pulsed light source, detection chip, marking light source and associated light source
  • Recesses can be used on the vehicle.
  • the sensor device has a uniform circuit board for the pulse light source
  • Detection chip and the marker light source has. In this way is a fixed relation of the distances and
  • the pulse light source, the detection chip and the marking light source are arranged along an optical axis in the installation space. In this way, the detection and associated marking is special
  • the marker light source is arranged in the straight extension of the optical axis between the detection chip and the pulse light source adjacent to the 3D camera arrangement.
  • the marking light source is arranged adjacent to a connection arrangement for the external connection of the circuit board and is coupled to the connection arrangement for the thermal dissipation of heat loss.
  • the marker light source is a bright and
  • Marking light source in particular powerful light emitting diodes with superior focusing optics used.
  • Light emitting diodes emit considerable heat loss during operation.
  • Marking light source at least with a flat
  • Forming surface extension ensures a derivative and Radiation of heat through the enlarged surface of the supply line. It is particularly advantageous when the areal
  • Supply line is designed as a sheet, which is partially cantilevered and runs at a distance, for example, to underlying boards.
  • a lead sheet can also extend in side walls of the housing.
  • the coupling of the flat feed lines can be combined with the coupling to the connection arrangement for external connection in order to further improve the thermal dissipation.
  • the flat electrical leads for example
  • Lead plates thermally coupled to the port means for transferring heat.
  • the marking light source is equipped with a marking optics, which a
  • Suitable marking optics may e.g. a recess for centering an LED
  • a marking optics with a receptacle for the LED in a base side and a radiation side, which is designed stepped, has proven to be advantageous. By enclosing the LED in a mounted glass body or KunststoffStoff body light losses are reduced.
  • Radiation side of the marking optics with parallel oblique steps ensures a directional radiation of the marker light.
  • Figure 1 shows schematically the arrangement of a
  • FIG. 2 shows a block diagram of an inventive device
  • Figure 3 shows a preferred embodiment of the invention in a perspective view
  • Figures 4a, 4b, 5a, 5b show the marker light source and marker optics in different views.
  • FIG. 1 the rear of a vehicle 1 is shown.
  • a sensor device 2 is in the rear-side bumper of Vehicle arranged.
  • the detection area 3 of a 3D sensor arrangement in the sensor device is directed downwards, away from the vehicle.
  • This sensor device is provided to detect the operating gesture for the actuation of a tailgate.
  • the user can perform in the area 3 a gesture with his foot, which is recognized as a control request and an electric opening of the tailgate of the vehicle. 1
  • a marking light source is also formed in the sensor device 2. This marker light source illuminates a region 4 which is a partial region of the detection region 3.
  • This marker light source illuminates brightly in the region 4 and emits light in the visible spectrum. A user recognizes this marked area as an illuminated area on the floor in the rear area. He can now purposefully move his foot into this area, which is marked by the light.
  • the camera device in the sensor device 2 detects the operating gesture and can trigger a tailgate operation. The marking by the marker light source makes it possible to carry out the operating gesture targeted and clear of
  • Vehicle be included.
  • the system can be awakened when an approach in the operating area 3 is detected.
  • the detection of the 3D camera is not dependent on the marker light source, but with a
  • Pulse light source operates in a different spectral range.
  • the marking is exclusively to the user's direction.
  • FIG. 2 shows the sensor device 2 in a schematic
  • a unitary housing 10 is designed as protection and receives a circuit board 11.
  • the board 11 has Connections 12, which is formed with a connector for coupling the sensor device 2 with a harness on the vehicle.
  • a pulse light source 13 is formed, in this embodiment, a laser diode in the near
  • the laser diode 13 is coupled to a driver circuit 14, which the laser diode for the transmission of short Pulsem in
  • the driver circuit 14 in turn is coupled to a control circuit 15, which also includes the
  • Photosensitive detection chip 16 drives.
  • the detection chip has a pixel array of 30x30 pixels in this embodiment. Such a pixel matrix is for observations of
  • Motion gestures are sufficient, but it can also be used arrays with dissimilar resolution.
  • the components 13, 14, 15, 16 form the 3D camera, which operates on the transit time principle.
  • Corresponding camera modules and circuits are known in the art.
  • the pulsed light source 13 together with the acquisition chip 16 defines an optical axis 20.
  • a marker light source 21 is formed in extension of the optical axis 20, a marker light source 21 is formed.
  • the marker light source 21 is a
  • the marker light source 21, the detection chip 16 and the pulsed light source 13 are therefore configured
  • the marker light source 21 is also adjacent to the
  • Terminals 12 arranged.
  • Lead sheets 22a, 22b supply the operating voltage of the marker light source 21 and at the same time serve as a heat sink for emitting the heat loss of the light source.
  • An associated driver circuit 23 is coupled to the leads 22a, 22b and to the circuit 15, which also coordinates the connection of the marker light source.
  • the lead sheets 22a, 22b are spaced from the board 11 to dissipate heat also by convection between the board and lead plates 22a, 22b.
  • the lead sheets 22a, 22b are spaced from the board 11 to dissipate heat also by convection between the board and lead plates 22a, 22b.
  • a thermal coupling with the external connection elements 12 may be provided to dissipate heat through the connecting elements 12 in the plug and leads.
  • the proposed arrangement is a compact, uniform
  • a board 50 On a board 50 are the pulse light source 51, the
  • Marking light source with marking optics 55 shown The components are arranged along an axis on the circuit board 50.
  • the board is surrounded by the components by a housing, which each have viewing openings for the
  • Figures 4a and 4b show the marking optics 55 and the
  • Marker light source 54 separate from the board and in various perspective views. It is clear that the marking light source in the form of an LED in the
  • Marking optics 55 dips.
  • the marking optics 55 has an optics holder 56, which is fixed on the board with lugs on its underside.
  • the marker optics 55 is on
  • Marker light source 54 and the marker optics 55 are aligned by the optical holder 56 to each other and secured in position.
  • FIGS. 5a and 5b show the arrangement of the component marking light source 54, marking optics 55 and optics holder 56 in various representations.
  • Figure 5a is a
  • Marking optics 55 has a stepped top, which is a steering of the radiation from the marker light source 54th causes.
  • the glass body has a conical-bulbous shape and has projections which engage in complementary openings of the optical holder 56 for a rotationally secure holding.
  • FIG. 5b shows the mounted state in which the
  • Marking light source dips into a recess of the marking optics 55 and the marking optics is accommodated in the optics holder.
  • the cavity in the marking optics and the opening of the optical holder facilitate alignment over the light source.

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)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

L'invention concerne un dispositif détecteur (2) destiné à la détection optique d'objets et de leurs mouvements dans l'espace. Une caméra 3D détecte des données spatiales selon un procédé temps de vol, la caméra 3D présentant une source de lumière pulsée (13) et une puce de détection (16) photosensible. La source de lumière pulsée (13) et la puce de détection (16) sont disposées dans un espace de montage commun et sont toutes les deux orientées vers la zone de détection de la caméra 3D. L'espace de montage abrite une autre source lumineuse conçue comme source lumineuse de marquage (21), la source lumineuse de marquage diffusant un rayonnement dans le spectre visible et étant orientée de manière à ce que la lumière émise par la source lumineuse de marquage rayonne dans la zone de détection (3) de la caméra 3D.
EP16731869.0A 2015-09-08 2016-06-22 Ensemble détecteur destiné à la détection optique de gestes de commande de véhicules Withdrawn EP3317692A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015115096.4A DE102015115096A1 (de) 2015-09-08 2015-09-08 Sensoranordnung zur optischen Erfassung von Bediengesten an Fahrzeugen
PCT/EP2016/064432 WO2017041917A1 (fr) 2015-09-08 2016-06-22 Ensemble détecteur destiné à la détection optique de gestes de commande de véhicules

Publications (1)

Publication Number Publication Date
EP3317692A1 true EP3317692A1 (fr) 2018-05-09

Family

ID=56203366

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16731869.0A Withdrawn EP3317692A1 (fr) 2015-09-08 2016-06-22 Ensemble détecteur destiné à la détection optique de gestes de commande de véhicules

Country Status (3)

Country Link
EP (1) EP3317692A1 (fr)
DE (1) DE102015115096A1 (fr)
WO (1) WO2017041917A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017222816A1 (de) * 2017-12-14 2019-06-19 Bayerische Motoren Werke Aktiengesellschaft Markieren eines einen Erfassungsbereich einer fahrzeugseitigen Umfeldsensorik repräsentierenden Bodenbereichs
WO2022117177A1 (fr) * 2020-12-01 2022-06-09 Vega Grieshaber Kg Module d'indication d'état passif pour un capteur

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030058650A1 (en) * 2001-09-25 2003-03-27 Kelvin Shih Light emitting diode with integrated heat dissipater
GB2391702B (en) * 2002-06-07 2006-01-04 Polymer Optics Ltd Modular optical system
DE102007014034B3 (de) 2007-03-23 2008-09-25 Continental Automotive Gmbh Optischer Sensorchip und Einklemmschutzvorrichtung mit einem solchen
US8091280B2 (en) 2007-06-01 2012-01-10 GM Global Technology Operations LLC Arms full vehicle closure activation apparatus and method
US8038465B2 (en) * 2008-01-07 2011-10-18 Lear Corporation Electrical connector and heat sink
DE102010056171A1 (de) 2010-12-24 2012-06-28 Volkswagen Ag Verfahren zum automatischen Betätigen eines Schließelements eines Fahrzeugs sowie entsprechende Vorrichtung und Fahrzeug
DE102011089195A1 (de) 2011-06-30 2013-01-03 Johnson Controls Gmbh Vorrichtung und Verfahren zur berührungslosen Erfassung von Gegenständen und/oder Personen und von diesen ausgeführten Gesten und/oder Bedienvorgängen
DE102012109031A1 (de) * 2012-09-25 2014-03-27 Huf Hülsbeck & Fürst Gmbh & Co. Kg Elektronische Sensoreinheit zur Erfassung der berührungslosen Betätigung einer Tür oder Klappe an einem Kraftfahrzeug
DE102014101206A1 (de) * 2014-01-31 2015-08-06 Huf Hülsbeck & Fürst Gmbh & Co. Kg Montagemodul für ein Kraftfahrzeug

Also Published As

Publication number Publication date
WO2017041917A1 (fr) 2017-03-16
DE102015115096A1 (de) 2017-03-09

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