WO2017220331A1 - Système et procédé de détection d'occupation d'habitacle dans un véhicule - Google Patents

Système et procédé de détection d'occupation d'habitacle dans un véhicule Download PDF

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Publication number
WO2017220331A1
WO2017220331A1 PCT/EP2017/063922 EP2017063922W WO2017220331A1 WO 2017220331 A1 WO2017220331 A1 WO 2017220331A1 EP 2017063922 W EP2017063922 W EP 2017063922W WO 2017220331 A1 WO2017220331 A1 WO 2017220331A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
laser
detection module
control module
module
Prior art date
Application number
PCT/EP2017/063922
Other languages
German (de)
English (en)
Inventor
Thomas Kiess
Dominik Neeser
Christian Ohl
Philipp Troebner
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2017220331A1 publication Critical patent/WO2017220331A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/0153—Passenger detection systems using field detection presence sensors
    • B60R21/01534—Passenger detection systems using field detection presence sensors using electromagneticwaves, e.g. infrared
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/0024—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat
    • B60N2/0025—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat by using weight measurement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/266—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children with detection or alerting means responsive to presence or absence of children; with detection or alerting means responsive to improper locking or installation of the child seats or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/01516—Passenger detection systems using force or pressure sensing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/10—Field detection presence sensors
    • B60N2210/16—Electromagnetic waves
    • B60N2210/22—Optical; Photoelectric; Lidar [Light Detection and Ranging]
    • B60N2210/24—Cameras
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/40—Force or pressure sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2230/00—Communication or electronic aspects
    • B60N2230/30—Signal processing of sensor data

Definitions

  • the invention is based on a system according to the preamble of claim 1. Further, the present invention is based on a method for
  • Vehicle occupants to detect. It is disadvantageous that only a mass or a pressure is detected, so that when occupying an object is erroneously assumed by the presence of a vehicle occupant.
  • time-of-flight measurements ie cameras with transit time measurement for distance measurement, for sensing.
  • Runtime measurements are expedient especially at longer distances. In the short distances that are commonly found in vehicles, such time-of-flight measurements have only insufficient resolution.
  • the vehicle is a motor vehicle
  • the vehicle has a plurality of vehicle seats, in particular
  • Vehicle front seats and vehicle rear seats Preferably, this includes
  • Control module at least one microcontroller. Particularly preferred is the control module via a vehicle electronics with the at least one
  • Detection module connected, most preferably, the control module is wirelessly connected to the detection module.
  • Control module an evaluation unit for evaluating the transmitted data from the detection module.
  • the laser-based distance measuring device is a laser operating according to the self-mixing method, in particular a surface emitter with integrated photodiode (vertical cavity surface-emitting laser with integrated photodiode, VCS ELiP).
  • the self-mixing-interference (SMI) measuring technique is already known and is based on reflecting a transmitted laser beam on an object and the reflected laser beam on the emitted one
  • Laser beam interferes, wherein the interference in the laser changes the optical and / or electronic properties of the laser light. These changes are analyzed, from which it is possible to deduce the distance of the reflecting object.
  • a very compact distance measuring device which permits precise and rapid measurements.
  • distance measurements with a resolution in the mm range within ⁇ is possible.
  • Due to the temporally and spatially high resolution it is also advantageously possible to carry out a classification by evaluating distance measurements which are carried out at the same location at different times, in particular a deviation from a desired position. For example, a toddler that has slipped into a child seat may be detected and a corresponding warning message issued, or a speaking and / or moving vehicle occupant may be detected, from which point a human may be distinguished as opposed to an object.
  • Laser-based distance meter is configured such that the
  • the laser-based distance measuring device for this purpose has a mirror arrangement, very particularly preferably a micromirror arrangement, in particular a micromirror array.
  • the mirror assembly directs the Laser beam in particular such that it is moved along a line or surface and thus scans an area line or area.
  • the laser-based distance measuring device is configured such that the laser beam performs an X-shaped scanning, whereby a compromise between a linear and a planar scanning is achieved.
  • Detection module additionally comprises a pressure and / or weight sensor and / or an imaging sensor, in particular a camera-based sensor comprises.
  • the detection module comprises a pressure mat integrated into the vehicle seat.
  • the detection module comprises a Stererogensystem.
  • a pressure sensor in the form of a pressure mat integrated in the vehicle seat detects an occupancy of the vehicle seat, whereupon the laser-based distance measuring device determines a depth and / or height profile. This can in particular a
  • a preclassification - vehicle seat occupied or not - can be performed by a camera-based sensor and complemented by precise measurements in terms of size or distances by the laser-based distance meter, for example, to capture a positioning more accurate. According to a preferred development, it is provided that each
  • Vehicle seat of the vehicle is assigned a detection module.
  • each vehicle seat arrangement is assigned a detection module; in particular, a detection module is associated with the front vehicle seats and a further detection module is assigned to the rear vehicle seats.
  • Detection module is at least partially disposed above, below, in front of and / or behind the vehicle seat. Particularly preferred is a laser-based
  • Distance measuring device arranged above the vehicle seat and arranged a second laser-based distance measuring device in front of the vehicle seat, wherein the detection directions of both distance measuring devices are arranged in particular perpendicular to each other.
  • a laser-based distance measuring device is arranged centrally above a vehicle seat.
  • a spatially complete image of the interior space is determined precisely by the combination of differently arranged sensors.
  • a spatially complete image of the interior space is determined precisely by the combination of differently arranged sensors.
  • Distance measuring devices it is advantageously possible to obtain a spatial profile of the interior, taking advantage of the laser-based distance measuring devices, in particular the high spatial and temporal
  • At least the detection module is provided for monitoring a state of charge of the vehicle.
  • at least one detection module for monitoring a cargo space, in particular a trunk and / or a parcel shelf is provided.
  • Vehicle occupants can suffer serious injury from not or only poorly secured objects, for example in the case of sudden braking or change of direction.
  • a continuous sensing of the loading space it is advantageously possible in this case to detect a slipping and / or falling cargo early and a driver
  • control module is connected to a security module, wherein the control module is configured such that it forwards data to the security module, wherein the data information about a presence and / or position of a vehicle occupant, in particular information about a Deviation of the position from a predetermined target position, and / or an object contains.
  • the system according to the invention now advantageously makes it possible for the detection module to detect the deviation of the position of the vehicle occupant, for the control module to recognize the deviation and forward it to the security module, whereupon the security module preferably issues a warning message and / or temporarily deactivates the corresponding airbag.
  • the security module preferably issues a warning message and / or temporarily deactivates the corresponding airbag.
  • the control module transmits the ascertained information to the security module.
  • Security module the triggering behavior of at least one airbag and / or occupant restraint system in the event of an accident.
  • the possibility of an automatic airbag shutdown when using a child seat is still mentioned.
  • FIGS. 1 a and 1 b show a schematic view of a system according to an embodiment of the present invention
  • FIGS. 2 to 7 show a system according to further embodiments of the invention
  • FIG. la a system 1 according to an embodiment of the present invention is shown in a schematic view. On the left side of the
  • FIG. 1 is a vehicle seat with a seated vehicle occupant indicated.
  • the system 1 for interior sensing comprises a
  • Detection module 3 which here is a first, above the vehicle seat arranged laser-based distance measuring device 4 and a second, before the vehicle seat angordnetes laser-based distance measuring device 4 'comprises.
  • Both laser-based distance measuring devices 4, 4 ' are preferably lasers operating according to the self-mixing principle, which measure distances by a mirror arrangement along a line and thus create distance profiles.
  • Vehicle floor and top of a vehicle roof refers. This will create a height profile.
  • the measurement data are transmitted by the detection module 3 to a control module 2, which evaluates the data and thus detects the vehicle occupant in the present case and also determines its position. These data are in turn transmitted from the control module 2 to a security module 7
  • the safety functions of the vehicle forwarded, which in dependence of the data determined by the control module 2, the safety functions of the vehicle, for example a
  • Vehicle occupant restraint system and / or an airbag system controls Vehicle occupant restraint system and / or an airbag system controls.
  • control module 2 detects a change in the position of the vehicle occupant, which indicates a fall asleep or a safety-endangering position and informs the security module 7, whereupon this example, the vehicle occupants via a audible and / or visual indicator warns.
  • control module 2 preferably comprises an evaluation unit, which in particular uses of pattern recognition algorithms associating the (combined) distance profiles with vehicle occupants or objects and / or positions.
  • FIG. 2 shows a schematic view of a system 1 according to a further embodiment of the present invention, wherein the
  • Embodiment is substantially identical to the other embodiments.
  • the detection module 3 comprises a first camera-based sensor 6 and a second camera-based sensor 6'. These are arranged on both sides of the vehicle seat and thus, in combination with the laser-based distance measuring devices 4, 4 ', enable complete spatial interior sensing.
  • control module 2 has an image recognition, so that, for example via the camera-based sensors 6, 6 'a preclassification can be made and is supplemented by the laser-based distance measuring devices 4, 4' with accurate distance data.
  • FIG. 3 shows a schematic view of a system 1 according to a further embodiment of the present invention, wherein the
  • Embodiment is substantially identical to the other embodiments.
  • a vehicle is shown in a schematic front view.
  • the vehicle has two vehicle seats, for example a driver's seat and a passenger's seat.
  • Each of the vehicle seats is assigned a detection module 3, 3 ', wherein the camera-based sensors 6, 6' can be assigned to both detection modules 3, 3 '.
  • each detection module 3, 3 ' comprises a laser-based device arranged above the respective vehicle seat
  • FIG. 4 shows a schematic view of a system 1 according to a further embodiment of the present invention, wherein the
  • Embodiment is substantially identical to the other embodiments.
  • a detection module 3 is associated with both vehicle seats together, which comprises a laser-based distance measuring device 4 and two camera-based sensors 6, 6 '.
  • FIG. 5 shows a schematic view of a system 1 according to a further embodiment of the present invention, wherein the
  • Embodiment is.
  • the laser-based distance measuring device 4 is arranged in front of the vehicle seats, for example on a dashboard.
  • the laser-based distance measuring device 4 preferably scans the interior in a planar manner, but with a corresponding orientation, a line-shaped scanning can also be sufficient. For example, it may be sufficient to determine a width profile approximately at chest height of a vehicle occupant in order to reliably conclude the presence and / or the position of the vehicle occupant.
  • FIGS. 6a to 6f systems 1 according to further embodiments of the present invention are shown in schematic view, the embodiments being substantially identical to the others
  • Embodiments are. It is common to the embodiments of FIGS. 6a to 6f that they dispense with camera-based sensors 6 and different ones
  • Vehicle seats include, in particular to allow a rough detection of the occupancy of a vehicle seat.
  • a laser-based distance measuring device 4 is arranged above the vehicle seat and is set up in such a way that it detects a line-shaped depth profile.
  • a laser-based distance measuring device 4 is alternatively or additionally shown, which is likewise arranged above the vehicle seat, for example in a vehicle roof, but accommodates a line-shaped height profile, that is to say a distance profile along a transverse direction of the vehicle.
  • the embodiment according to FIG. 6c comprises a first, before
  • Vehicle seat arranged laser-based distance measuring device 4 which creates a width profile approximately at chest height of the vehicle occupant, again perpendicular to a direction of travel, while another laser-based
  • Distance measuring device 4 'in the bottom region of the vehicle seat is arranged in front of selbigem and here creates a profile of the legs of the vehicle occupant.
  • the embodiment according to FIG. 6d again comprises only one laser-based distance measuring device 4, which is again arranged in front of the vehicle seat, but is configured in such a way that it produces a line-shaped height profile. It is thereby advantageously possible to adapt vehicle functions to the height profile of a driver, for example an occupant restraint system, in particular a vehicle seat belt, or exterior and / or interior mirrors corresponding to the head height of the vehicle occupant determined by the control module 2, not shown here, from the height profile.
  • a driver for example an occupant restraint system, in particular a vehicle seat belt, or exterior and / or interior mirrors corresponding to the head height of the vehicle occupant determined by the control module 2, not shown here, from the height profile.
  • the system 1 according to the embodiment shown in FIG. 6 e has a laser-based distance measuring device 4, which is arranged in front of the vehicle seat but has a cross-shaped or X-shaped scanning profile.
  • a height and a width profile can be created in a simple manner and be concluded from this to the position of the vehicle occupant.
  • the embodiment shown in FIG. 6f corresponds essentially to the embodiment shown in FIG. 6e, for which reason reference is made in principle to the relevant embodiments, in which case, however, the
  • laser-based distance measuring device 4 is arranged centrally above the vehicle seat.
  • FIGS. 7a and 7b a system 1 according to another is shown
  • Embodiment of the present invention shown in schematic view, wherein the embodiment is substantially identical to the other embodiments.
  • an embodiment of a method according to the invention for interior sensing is shown.
  • the child seat is empty. That through the above
  • Vehicle seat arranged laser-based distance measuring device 4 determined distance profile thus shows the depth profile of the empty child seat.
  • FIG. 7b schematically shows a child located in the child seat and the associated depth profile. The difference between the two depth profiles is immediately apparent.
  • the evaluation unit of the control module 2 can this

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Air Bags (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

L'invention concerne un système (1) de détection d'occupation d'habitacle dans un véhicule doté d'un siège de véhicule, ledit système comprenant un module de commande (2) et au moins un module de détection (3), le module de commande (2) étant prévu pour évaluer des données mesurées par le module de détection (3), ledit module de détection (3) comprenant au moins un appareil de mesure de distance par laser (4).
PCT/EP2017/063922 2016-06-20 2017-06-08 Système et procédé de détection d'occupation d'habitacle dans un véhicule WO2017220331A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016210925.1 2016-06-20
DE102016210925.1A DE102016210925A1 (de) 2016-06-20 2016-06-20 System und Verfahren zur Innenraumsensierung in einem Fahrzeug

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WO2017220331A1 true WO2017220331A1 (fr) 2017-12-28

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PCT/EP2017/063922 WO2017220331A1 (fr) 2016-06-20 2017-06-08 Système et procédé de détection d'occupation d'habitacle dans un véhicule

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DE (1) DE102016210925A1 (fr)
FR (1) FR3052721A1 (fr)
WO (1) WO2017220331A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018102724A1 (de) * 2018-02-07 2019-08-08 Autoliv Development Ab Gurtaufroller und Verfahren zur Ermittlung eines Anschnallzustands für ein Kraftfahrzeug
CN110806274B (zh) * 2018-04-12 2020-12-15 安徽大学 基于多纵模自混合效应的应变传感测量装置及方法
FR3106545A1 (fr) * 2020-01-29 2021-07-30 Psa Automobiles Sa Desactivation dynamique de coussin gonflable pour passsager avant de vehicule automobile
DE102020209031A1 (de) 2020-07-20 2022-01-20 Robert Bosch Gesellschaft mit beschränkter Haftung Optikeinrichtung zum Umlenken eines Lichtstrahls für eine Bilderfassungseinrichtung, Verfahren und Steuergerät zum Betreiben einer Optikeinrichtung
DE102022211250A1 (de) 2022-10-24 2024-04-25 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Ermittlung wenigstens eines Augenzustands wenigstens einer, in einem definierten Raumbereich angeordneten Person

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0734921A2 (fr) * 1995-03-31 1996-10-02 Toyota Jidosha Kabushiki Kaisha Dispositif de sac gonflable pour siège de passager
US5835613A (en) * 1992-05-05 1998-11-10 Automotive Technologies International, Inc. Optical identification and monitoring system using pattern recognition for use with vehicles
JP2000225915A (ja) * 1999-02-03 2000-08-15 Honda Motor Co Ltd 車両用乗員保護装置
WO2000050268A1 (fr) * 1999-02-24 2000-08-31 Siemens Automotive Corporation Systeme capteur pour occupant de vehicule
WO2001072557A1 (fr) * 2000-03-28 2001-10-04 Siemens Aktiengesellschaft Dispositif et procede permettant de detecter un objet ou une personne dans l'habitacle d'un vehicule
JP3344551B2 (ja) * 1996-09-19 2002-11-11 富士電機株式会社 乗員の姿勢判別装置
DE10232162A1 (de) * 2001-12-25 2003-07-10 Mitsubishi Electric Corp Vorrichtung zur Erfassung eines sich dynamisch bewegenden Subjekts
WO2009138912A2 (fr) * 2008-05-16 2009-11-19 Philips Intellectual Property & Standards Gmbh Système de sécurité comprenant un capteur laser à auto-mélange et procédé de commande d'un tel système de sécurité
EP2743141A1 (fr) * 2012-12-12 2014-06-18 Volvo Car Corporation Agencement de commande pour véhicule

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5835613A (en) * 1992-05-05 1998-11-10 Automotive Technologies International, Inc. Optical identification and monitoring system using pattern recognition for use with vehicles
EP0734921A2 (fr) * 1995-03-31 1996-10-02 Toyota Jidosha Kabushiki Kaisha Dispositif de sac gonflable pour siège de passager
JP3344551B2 (ja) * 1996-09-19 2002-11-11 富士電機株式会社 乗員の姿勢判別装置
JP2000225915A (ja) * 1999-02-03 2000-08-15 Honda Motor Co Ltd 車両用乗員保護装置
WO2000050268A1 (fr) * 1999-02-24 2000-08-31 Siemens Automotive Corporation Systeme capteur pour occupant de vehicule
WO2001072557A1 (fr) * 2000-03-28 2001-10-04 Siemens Aktiengesellschaft Dispositif et procede permettant de detecter un objet ou une personne dans l'habitacle d'un vehicule
DE10232162A1 (de) * 2001-12-25 2003-07-10 Mitsubishi Electric Corp Vorrichtung zur Erfassung eines sich dynamisch bewegenden Subjekts
WO2009138912A2 (fr) * 2008-05-16 2009-11-19 Philips Intellectual Property & Standards Gmbh Système de sécurité comprenant un capteur laser à auto-mélange et procédé de commande d'un tel système de sécurité
EP2743141A1 (fr) * 2012-12-12 2014-06-18 Volvo Car Corporation Agencement de commande pour véhicule

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Publication number Publication date
FR3052721A1 (fr) 2017-12-22
DE102016210925A1 (de) 2017-12-21

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