EP1394756A1 - Système pour surveiller et influencer la vigilance d'un conducteur de véhicule - Google Patents

Système pour surveiller et influencer la vigilance d'un conducteur de véhicule Download PDF

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Publication number
EP1394756A1
EP1394756A1 EP02019380A EP02019380A EP1394756A1 EP 1394756 A1 EP1394756 A1 EP 1394756A1 EP 02019380 A EP02019380 A EP 02019380A EP 02019380 A EP02019380 A EP 02019380A EP 1394756 A1 EP1394756 A1 EP 1394756A1
Authority
EP
European Patent Office
Prior art keywords
driver
light
sun visor
vehicle driver
image recording
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.)
Granted
Application number
EP02019380A
Other languages
German (de)
English (en)
Other versions
EP1394756B1 (fr
Inventor
Uwe Peter Dipl.-Ing. Braun
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to ES02019380T priority Critical patent/ES2269572T3/es
Priority to AT02019380T priority patent/ATE333688T1/de
Priority to DK02019380T priority patent/DK1394756T3/da
Priority to DE50207570T priority patent/DE50207570D1/de
Priority to EP02019380A priority patent/EP1394756B1/fr
Priority to PT02019380T priority patent/PT1394756E/pt
Publication of EP1394756A1 publication Critical patent/EP1394756A1/fr
Application granted granted Critical
Publication of EP1394756B1 publication Critical patent/EP1394756B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/06—Alarms for ensuring the safety of persons indicating a condition of sleep, e.g. anti-dozing alarms

Definitions

  • the invention relates to a device for monitoring and influencing the vigilance of a vehicle driver, with an infrared lighting Image recording system for taking pictures of the Area of at least one eye of the driver and an image evaluation system that is used by the image acquisition system evaluates captured images.
  • the present invention is based on the object to create a device that requires vigilance a driver doesn't just monitor to him to warn when fatigue sets in, but to be one onset of driver fatigue when driving at night counteract.
  • This object is achieved in that the image evaluation system depending on a change the visible size of the corneal surface, the blinking frequency and / or the duration of the blinking of the eye aimed at the driver's field of vision or Alignable lighting device that controls broadly counteracting driver fatigue Light emitted.
  • the invention thus creates an automatic monitoring system, that the driver’s eyes when starting Fatigue with light from a radiation spectrum lit which is a release of sleep hormones largely prevented.
  • the imaging system one not visible to the driver arranged camera includes. Through this configuration the impression that is sometimes perceived as disturbing becomes one Prevents surveillance that come from visible cameras can. To hide the camera, it can preferably behind a one-sided transparent mirror or Divider mirror can be arranged.
  • the camera has a deflecting lens is assigned via which the camera The driver's field of vision is captured.
  • a deflecting optic results in a larger one Degree of freedom regarding the mounting location of the camera.
  • the camera can therefore also be installed in locations that offer enough space, but no direct orientation the camera onto the driver's field of vision allow.
  • the deflecting optics after a further configuration depending on the seating position and / or the size of the driver by means of a automatic control is adjustable. This will ensures that the camera always has at least one eye of the respective driver continuously recorded, even if it changes its seating position or if a driver change between different tall people.
  • Another advantageous embodiment of the invention Device consists of this with a electronic control and at least one light sensor to provide the brightness of the surroundings of the Vehicle driver of steered vehicle recorded, wherein by means of the electronic control from the Illumination device emits light radiation in Dependence on the light radiation falling on the light sensor the environment is controlled.
  • Another advantageous embodiment of the invention Device consists of this with a electronic control and at least one light sensor to provide the light radiation of an external Glare source detected, by the lighting device emitted light radiation by means of the electronic control depending on the on the Light sensor covered by light radiation from the outside Glare source is controlled.
  • the device according to the invention additionally the function, dazzling the driver when driving on or long tunnels through oncoming vehicles to prevent.
  • a particularly preferred embodiment of the invention Device is characterized in that at least the image recording system and the lighting device in a assigned to the driver pivotable sun visor are integrated, the Image evaluation system that is outside the sun visor or can also be arranged in the sun visor a data and supply connection with the image recording system and the lighting device is.
  • a sun visor provides an optimal one Installation location for the device according to the invention others allow this to be summarized all essential parts of the device in one only piece of equipment that as a supply part can be prefabricated and as such the effort the dismantling of the vehicle in question is not increased.
  • the sun visor on both sides has a divider mirror, the image recording system in an extended position of the sun visor over a divider and in a folded Position the sun visor over the other divider mirror Images of the area of at least one eye of the driver receives.
  • Figures 1 and 2 show a vehicle driver 1 am Steering wheel 2 of a motor vehicle.
  • the driver 1 is as usual, a swiveling sun visor 3 is assigned, 1 shows the situation in which the Sun visor 3 is in its folded position. This situation generally corresponds to the situation a descent or a long tunnel trip.
  • the sun visor 3 is according to the invention with a Image acquisition system for infrared lighting Taking pictures of the area of at least one Provide eye of the driver 1. Furthermore, a Image evaluation system available, that of the image acquisition system evaluates captured images and depending on one Change in the visible size of the corneal surface, the blinking frequency and / or the blinking duration of the Eye on the field of vision of the driver 1 directed or orientable lighting device 4 controls the wide area of a fatigue of the The driver emits counteracting light.
  • the determination of a critical state of tiredness Driver 1 can in particular on the so-called Cornea reflection method based on the Reflectance of the cornea, which is from Degree of opening of the eyelid depends on, is measured.
  • the image evaluation system can by a suitable Computer (computer) or microprocessor with memory device be realized.
  • a suitable Computer computer
  • that too Image evaluation system can be integrated in the sun visor 3.
  • the computer or microprocessor is at a standstill then via a data and voltage supply connection with the electro-optical and electronic components the sun visor 3 in dialogue.
  • the image evaluation system is also equipped with a warning signal device (not shown) connected to the Vehicle driver 1 by an optical and / or acoustic Warning signal warns when the image evaluation system is with him has found a critical state of fatigue.
  • the image recording system comprises a miniature camera 5, which is a photosensitive CCD array, a lens, a Has aperture and a focusing device.
  • the camera 5, which is invisible to the driver 1 in the sun visor 3 is arranged, the visual field 6 of the Vehicle driver 1 via a deflection lens 7 in the form of a Mirror, which is preferably convex.
  • a deflection lens 7 in the form of a Mirror, which is preferably convex.
  • the Beam path 8 'of the camera 3 is also a splitter mirror 9 arranged that an opening within the wall or Cover of the sun visor 3 covers and for the driver 1 is visible (see FIGS. 4 and 5).
  • a second corresponding divider mirror 10 is on the opposite side of the sun visor 3 is arranged and also visible to the driver when the Sun visor 3 is unfolded.
  • the two divider mirrors 9, 10 are so arranged that the camera 5 in the folded Position of the sun visor 3 over the divider mirror 9 and in the extended position over the divider mirror 10 Images of the area of at least one eye of the driver 1 records.
  • the deflection mirror 7 is movably mounted.
  • the spatial Position of the deflecting mirror 7 is by means of a motor 11 and a gear 12 having an actuator in Dependence of the seating position or the size of the driver 1 set automatically.
  • the engine 11 of the Actuator is controlled by the image evaluation system.
  • the image evaluation system compares those recorded by the camera 5 Images with the reference images and adjusted at one deviation exceeding a certain limit between captured images and reference image Deflecting mirror 7 until the pictures taken with the reference picture (s) again in a certain one Dimension match.
  • the lighting device 4 of the invention Device preferably consists of a plate-shaped, essentially rectangular light guide, the has a wide-area light exit surface.
  • the Light guide consists of glass or a glass-like Plastic, for example acrylic glass.
  • On the light exit surface opposite side of the light guide preferably a reflective coating or Printing on. In the illustrated embodiment takes up about half of the light exit surface Flat side of the sun visor 3. It is only on the Side of the sun visor 3 arranged in the unfolded Position of the sun visor 3 in the direction of travel has.
  • UV-A radiation is emitted, which is a wavelength in the range from 320 to 400 nm.
  • the upper edge of the sun visor 3 has an opening, in which a light sensor 17 is embedded.
  • the light sensor 17 is used to detect the external brightness and is connected to an electronic control, by means of the intensity of the from the lighting device 4 emitted visible and invisible Light radiation depending on the on the light sensor 17 falling light radiation controlled the environment becomes.
  • the computer or microprocessor preferably comprises of the image evaluation system this electronic Control.
  • the light sensors 18, 19 are used for detection the light radiation of oncoming vehicles or external glare sources during night driving as well longer tunnel journeys.
  • the light sensors 18, 19 are with connected to an electronic control, which at least that emitted by the lighting device 4 visible light radiation depending on the on the Light sensors 18, 19 falling light radiation from the Glare source controls.
  • the emitted UV radiation depending on the detected Glare radiation can be controlled.
  • At 20 is an on-off switch designated.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Studio Devices (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
EP02019380A 2002-08-29 2002-08-29 Système pour surveiller et influencer la vigilance d'un conducteur de véhicule Expired - Lifetime EP1394756B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES02019380T ES2269572T3 (es) 2002-08-29 2002-08-29 Dispositivo para supervisar e influir sobre la vigilancia de un conductor.
AT02019380T ATE333688T1 (de) 2002-08-29 2002-08-29 Vorrichtung zur überwachung und beeinflussung der wachsamkeit eines fahrzeugführers
DK02019380T DK1394756T3 (da) 2002-08-29 2002-08-29 Indretning til overvågning og påvirkning af en motorförers årvågenhed
DE50207570T DE50207570D1 (de) 2002-08-29 2002-08-29 Vorrichtung zur Überwachung und Beeinflussung der Wachsamkeit eines Fahrzeugführers
EP02019380A EP1394756B1 (fr) 2002-08-29 2002-08-29 Système pour surveiller et influencer la vigilance d'un conducteur de véhicule
PT02019380T PT1394756E (pt) 2002-08-29 2002-08-29 Sistema para controlar e influenciar a vigilância do condutor de um veículo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02019380A EP1394756B1 (fr) 2002-08-29 2002-08-29 Système pour surveiller et influencer la vigilance d'un conducteur de véhicule

Publications (2)

Publication Number Publication Date
EP1394756A1 true EP1394756A1 (fr) 2004-03-03
EP1394756B1 EP1394756B1 (fr) 2006-07-19

Family

ID=31197859

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02019380A Expired - Lifetime EP1394756B1 (fr) 2002-08-29 2002-08-29 Système pour surveiller et influencer la vigilance d'un conducteur de véhicule

Country Status (6)

Country Link
EP (1) EP1394756B1 (fr)
AT (1) ATE333688T1 (fr)
DE (1) DE50207570D1 (fr)
DK (1) DK1394756T3 (fr)
ES (1) ES2269572T3 (fr)
PT (1) PT1394756E (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2237237A1 (fr) * 2009-03-30 2010-10-06 Tobii Technology AB Détection de la fermeture des yeux à l'aide d'un éclairage structuré
DE202017004151U1 (de) 2017-07-05 2017-10-23 Uwe Braun Sicherheitsbrille zur Verbesserung der Reaktionszeit
CN108133572A (zh) * 2017-12-25 2018-06-08 合肥思艾汽车科技有限公司 一种驾驶员疲劳驾驶预警装置
DE102015007362B4 (de) 2015-06-10 2019-12-05 Audi Ag Kombinationsinstrument für ein Kraftfahrzeug und Kraftfahrzeug

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020029093A1 (fr) * 2018-08-07 2020-02-13 深圳市汇顶科技股份有限公司 Procédé, appareil et dispositif de détection d'état de fatigue

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215040A (en) * 1988-02-13 1989-09-13 William George David Ritchie A method and apparatus for monitoring the driver of a vehicle
DE29607558U1 (de) * 1996-04-26 1996-07-18 Neumeister, Reiner, 42697 Solingen Vorrichtung zur Überwachung einer Bedienungsperson
US20010022550A1 (en) * 2000-01-28 2001-09-20 Reitter & Schefenacker Gmbh & Co. Kg Monitoring device for vehicles, in particular, motor vehicles
WO2002050792A1 (fr) * 2000-12-21 2002-06-27 Todor Stankovic Procede et dispositif permettant d'assurer la securite dans un ensemble homme-machine en cas de somnolence

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215040A (en) * 1988-02-13 1989-09-13 William George David Ritchie A method and apparatus for monitoring the driver of a vehicle
DE29607558U1 (de) * 1996-04-26 1996-07-18 Neumeister, Reiner, 42697 Solingen Vorrichtung zur Überwachung einer Bedienungsperson
US20010022550A1 (en) * 2000-01-28 2001-09-20 Reitter & Schefenacker Gmbh & Co. Kg Monitoring device for vehicles, in particular, motor vehicles
WO2002050792A1 (fr) * 2000-12-21 2002-06-27 Todor Stankovic Procede et dispositif permettant d'assurer la securite dans un ensemble homme-machine en cas de somnolence

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2237237A1 (fr) * 2009-03-30 2010-10-06 Tobii Technology AB Détection de la fermeture des yeux à l'aide d'un éclairage structuré
US8314707B2 (en) 2009-03-30 2012-11-20 Tobii Technology Ab Eye closure detection using structured illumination
US8902070B2 (en) 2009-03-30 2014-12-02 Tobii Technology Ab Eye closure detection using structured illumination
US9955903B2 (en) 2009-03-30 2018-05-01 Tobii Ab Eye closure detection using structured illumination
DE102015007362B4 (de) 2015-06-10 2019-12-05 Audi Ag Kombinationsinstrument für ein Kraftfahrzeug und Kraftfahrzeug
DE202017004151U1 (de) 2017-07-05 2017-10-23 Uwe Braun Sicherheitsbrille zur Verbesserung der Reaktionszeit
CN108133572A (zh) * 2017-12-25 2018-06-08 合肥思艾汽车科技有限公司 一种驾驶员疲劳驾驶预警装置

Also Published As

Publication number Publication date
DK1394756T3 (da) 2006-11-13
EP1394756B1 (fr) 2006-07-19
ES2269572T3 (es) 2007-04-01
PT1394756E (pt) 2006-12-29
DE50207570D1 (de) 2006-08-31
ATE333688T1 (de) 2006-08-15

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