EP4196371A1 - Procédé de détermination de la posture d'un conducteur - Google Patents
Procédé de détermination de la posture d'un conducteurInfo
- Publication number
- EP4196371A1 EP4196371A1 EP21755718.0A EP21755718A EP4196371A1 EP 4196371 A1 EP4196371 A1 EP 4196371A1 EP 21755718 A EP21755718 A EP 21755718A EP 4196371 A1 EP4196371 A1 EP 4196371A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- driver
- posture
- vehicle
- sequence
- images
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000036544 posture Effects 0.000 claims description 124
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000004590 computer program Methods 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 7
- 230000001960 triggered effect Effects 0.000 description 4
- 230000006399 behavior Effects 0.000 description 2
- 238000010606 normalization Methods 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
-
- 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
- B60R21/01538—Passenger detection systems using field detection presence sensors for image processing, e.g. cameras or sensor arrays
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30196—Human being; Person
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30248—Vehicle exterior or interior
- G06T2207/30252—Vehicle exterior; Vicinity of vehicle
- G06T2207/30261—Obstacle
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30248—Vehicle exterior or interior
- G06T2207/30268—Vehicle interior
Definitions
- TITLE Process for determining the posture of a driver
- the present invention relates to the field of transport and more particularly to a method for alerting a vehicle driver and a vehicle implementing such a method.
- the invention aims to improve existing solutions for alerting vehicle drivers, in particular in the event that the driver of the vehicle adopts a dangerous driving posture.
- the invention applies in particular to the piloting of a motor vehicle, a train or an aircraft.
- the document CN103057503A describes for example an intelligent airbag device protecting drivers or passengers according to their seated posture and their bodily conditions.
- the smart airbag device includes a sensing unit, a control unit, and an airbag unit.
- the control unit is connected to the detection unit and the airbag unit respectively.
- the sensing unit detects the physique and seating posture of a driver or passenger, as well as the severity of collisions of an automobile.
- the control unit judges whether an airbag should inflate or not and determines the inflation mode based on this information. Passengers are protected according to real-time information provided on the passenger's physique and seating posture and according to real-time information on the severity of the accident.
- the present invention firstly relates to a method for determining the posture of a driver of a vehicle, in particular a motor vehicle, said vehicle comprising a camera capable of generating an image sequence of the of the driver of said vehicle and an electronic control unit comprising a memory zone in which is recorded a plurality of image processing masks, each mask being associated with a predetermined posture of the driver in his seat including a correct posture of the driver in his seat and at least one incorrect posture of the driver in his seat, said method comprising the steps of:
- the method according to the invention makes it possible to detect in a simple, reliable and efficient manner, from a camera and without the use of other sensors, the posture of the driver.
- the invention applies in particular to a motor vehicle in which it is advantageous to detect the posture of the driver on his seat relative to the steering wheel of the vehicle in order to warn him in the event of a dangerous posture.
- the invention also applies to the piloting of a train or an aircraft.
- the incorrect posture of the driver corresponds to a posture in which the bust or the head of the driver are too far or too close to the steering wheel, for example when his bust or his head are respectively less than 15 cm from the steering wheel. or more than 130 cm from the steering wheel.
- the method further comprises, when the detected posture corresponds to an incorrect posture of the driver, a step of generating an alert intended for the driver in order to inform him that his posture is incorrect so that it corrects it and thus avoids modifying the state of the entire airbag system of the vehicle.
- the camera is a 2D camera in order to allow simple and rapid processing of the image sequences generated by said camera.
- the camera is placed behind the driver's central rear view mirror in order to be able to film both the bust and the head of the driver and thus improve the precision of the detection of his posture.
- the predetermined postures comprise a first incorrect posture for which the driver is too far from the steering wheel and a second incorrect posture for which the driver is too close to the steering wheel.
- the vehicle further comprising a second camera able to generate a sequence of images of the environment outside the vehicle, in particular of the environment located in front of the vehicle, and to send said sequence of images to the electronic control unit and the electronic control unit being capable of detecting in the sequence of images received a risk of collision of the vehicle with an external element, the generation of an alert intended for the driver is carried out when the risk of collision is proven and that the posture detected corresponds to an incorrect posture.
- a second additional camera makes it possible to detect a potential risk of collision and to inform the driver thereof
- the method comprises a preliminary step of determining the image processing masks, said preliminary step comprising the generation of a sequence of images for each predetermined posture of the driver in his seat and the determination of a mask for each sequence of images generated in order to be able to apply this mask to the images generated by the camera when the vehicle is moving and thus determine the posture of the driver.
- the determination of a mask for each sequence of images generated comprises the determination of the zone of pixels corresponding to the body of the driver in said sequence of images generated.
- the determination of a mask for each sequence of images generated comprises the determination of the weight of each pixel with respect to the definition of each posture.
- the method comprises, following the detection of the driver's second incorrect posture, the deactivation, by the electronic control unit , of said airbag system, preferably only of the airbag located in the steering wheel, in order to prevent the triggering of the steering wheel airbag from injuring it in the event of triggering, then the reactivation of the said airbag or system as soon as the driver's posture is detected as correct again.
- the invention also relates to a computer program product characterized in that it comprises a set of program code instructions which, when executed by one or more processors, configure the processor or processors to put implement the method as presented previously.
- the invention also relates to an electronic control unit for a vehicle, in particular an automobile, said vehicle comprising a camera capable of generating a sequence of images of the driver's seat of said vehicle, said electronic control unit comprising a memory area in which is recorded a plurality of image processing masks, each mask being associated with a predetermined posture of the driver in his seat including a correct posture of the driver on his seat and at least one incorrect posture of the driver on his seat, the unit electronic control being able to:
- the electronic control unit is capable of detecting in the sequence of images received from a second camera a risk of collision of the vehicle with an external element, the generation of an alert at destination of the driver is carried out when the risk of collision is proven and the posture detected corresponds to an incorrect posture.
- the electronic control unit when the vehicle includes an airbag system (airbags), the electronic control unit is able to, following upon detection of the driver's second incorrect posture, deactivating said airbag system, preferably only the airbag located in the steering wheel, in order to prevent the triggering of the steering wheel airbag from injuring him in the event of triggering , then reactivating said cushion or said system as soon as the driver's posture is detected as being correct again.
- airbags airbags
- the invention also relates to a vehicle, in particular automobile, railway or aircraft, comprising a camera capable of generating an image sequence of the driver's seat of said vehicle and an electronic control unit as presented previously.
- the vehicle comprises a second camera capable of generating a sequence of images of the environment outside the vehicle, in particular of the environment located in front of the vehicle, and of sending said sequence of images to the electronic control unit.
- the vehicle includes an airbag system.
- the vehicle is self-driving and the electronic control unit is programmed to detect that the vehicle is driving in self-driving mode in order to avoid generating the alert when the driver is detected in incorrect posture.
- the vehicle is autonomously driven and the correct driver postures are multiple when the autonomous driving mode is activated.
- a correct posture can correspond to a sleeping posture of the driver, a resting posture, a reading posture, etc.
- the electronic control unit does not alert the driver in those positions which are considered correct when autonomous driving is activated but alerts the driver when autonomous driving is deactivated, these positions then becoming incorrect and therefore dangerous.
- FIG. 1 Figure 1 illustrates an embodiment of the vehicle according to the invention.
- Figure 2 illustrates an embodiment of the method according to the invention.
- Figure 3 illustrates an example of a mask corresponding to a correct posture.
- Figure 4 illustrates an example of a mask corresponding to a first incorrect posture, too far from the steering wheel.
- Figure 5 illustrates an example of a mask corresponding to a second incorrect posture, too close to the steering wheel.
- Figure 6 illustrates an example of a mask corresponding to an absent posture of the driver.
- vehicle 1 is a motor vehicle but in another example, the vehicle could be a train or an aircraft.
- the vehicle 1 comprises, in addition to a driver's seat and a steering wheel (not shown for clarity), a first camera 10 and an electronic control unit 20.
- the first camera 10 is capable of generating an image sequence of the driver's seat 5 in the vehicle 1, in particular of the bust and head of the driver 5 of said vehicle 1 when said driver 5 is seated in the driver's seat .
- the first camera 10 is a 2D camera positioned behind the central driver's rear view mirror 5 mounted in front of the front windshield of vehicle 1 (from inside vehicle 1).
- the first camera 10 is able to send the sequences of images that it generates to the electronic control unit 20.
- the vehicle 1 further comprises an airbag system 30 and a second camera 40 able to generate a sequence of images of the environment located in front of the vehicle 1, in particular of the road when the vehicle 1 is moving on a road.
- This second camera 40 makes it possible to film the environment located in front of the vehicle 1 in order to be able to detect a collision as will be detailed below.
- the second camera 40 is able to send the sequences of images that it generates to the electronic control unit 20.
- the second camera 40 is optional and is not necessarily necessary for the implementation of the invention, although than advantageous.
- the electronic control unit 20 is able to receive the sequences of images sent by the first camera 10 and by the second camera 40.
- the electronic control unit 20 comprises a memory area 21 in which is recorded a plurality of image processing masks M (referenced in FIG. 2), each mask M being associated with a predetermined posture of the driver 5 in his seat including a correct posture of the driver 5 on his seat and at least one incorrect posture of the driver 5 on his seat.
- the memory zone 21 comprises a first mask M corresponding to a correct posture of the driver 5 in his seat, a second mask M corresponding to a posture of the driver 5 too far from the steering wheel of the vehicle, a third mask M corresponding to a posture of the driver 5 too close to the steering wheel of the vehicle and a fourth mask M corresponding to the absence of the driver 5 from his seat.
- the image processing masks M are defined and recorded beforehand, for example in the factory or in the laboratory, in the memory area 21 of the electronic control unit 20, that is to say prior to the use of the vehicle 1 on a road.
- the electronic control unit 20 is able to receive from the first camera 10 a sequence of images of the driver's seat s, to calculate, for each mask M of the plurality of masks M, the convolution product of said mask M by at least one image of the sequence of images received from the first camera 10 (that is to say to apply a convolution filter, known per se) in order to obtain a correlation coefficient, to be determined the posture of the driver 5 from the mask M whose correlation coefficient is the highest, and to generate an alert intended for the driver 5 so that he corrects his posture when the posture detected corresponds to an incorrect posture of the driver 5, that is to say when the driver 5 is too far or too close to the steering wheel, for example when his chest or his head are respectively less than 15 cm from the steering wheel or more than 130 cm from the steering wheel.
- the alert remains active as long as the driver 5 does not return to the correct posture.
- the electronic control unit 20 is capable of detecting in the sequence of images received from the second camera 40 a risk of collision of the vehicle 1 with an external element, the generation of an alert intended for the driver 5 is carried out when the risk of collision is confirmed and the posture detected corresponds to an incorrect posture.
- the external element can for example be another vehicle, a pedestrian or an element of the road infrastructure.
- the electronic control unit 20 is able to deactivate said airbag system 30, preferably to only deactivate the steering wheel cushion, when the driver 5 is in the second incorrect posture, too close to the steering wheel, in order to prevent the triggering of said steering wheel cushion from injuring him in the event of triggering, then to reactivate said cushion or system as soon as that the posture of the driver 5 is detected as being correct again by the electronic control unit 20.
- the electronic control unit 20 includes a processor capable of implementing a set of instructions allowing these functions to be performed.
- the processing masks M are determined and then recorded in the memory zone of the electronic control unit in a preliminary initialization step E0, carried out for example in the factory or in the laboratory.
- a preliminary initialization step E0 carried out for example in the factory or in the laboratory.
- the exact driving configuration of the vehicle is reproduced, in particular by placing a driver's seat, a steering wheel and a camera identical to that which will be installed in the vehicle, respecting the distances between these elements as defined. in the vehicle.
- a typical conductor preferably human or else a dummy, is placed in the different postures in order to define the corresponding masks M from different sequences of images.
- the standard driver is first placed in a so-called "correct" posture in the seat, neither too far nor too close to the steering wheel, this posture being considered safe for driving, in particular in the event of a collision when a system of airbags must be triggered.
- a sequence of images representing at least the bust and the head of the typical driver seated in his seat in this correct posture, for example of 25 images, is then generated by the camera.
- the standard driver is then placed in a first so-called "incorrect" posture in the seat, being too far from the steering wheel, this posture being considered dangerous for driving, in particular in the event of a collision when a system of safety bags has to be triggered.
- a sequence of images representing at least the bust and the head of the standard driver seated in his seat in this first incorrect posture, for example of 25 images, is then generated by the camera.
- the typical driver is then placed in a second incorrect posture in the seat, being too close to the steering wheel, this posture being considered dangerous for driving, in particular in the event of a collision when it is necessary to trigger an airbag system.
- Each of the four image sequences will make it possible to define an image processing mask M.
- each of the four image sequences undergoes the following steps.
- a histogram normalization operation is performed on each of the four image sequences.
- the histogram normalization operation expands the range of values for each image in the sequence by uniformly spreading the gray levels of the image over the entire range of available values. In other words, this operation makes it possible to better distribute the intensities of the pixels over the whole range of possible values in order to adjust the contrast of each image of the sequence.
- the four standardized image sequences are stored on a memory medium.
- a median filter is applied to the images of each of the four image sequences in order to filter out noise and outliers in pixel intensity.
- the technique of median filter makes it possible to reduce the noise while preserving the contours of the image and consists in replacing each input by the median value of its vicinity.
- a segmentation of the images of each of the four image sequences is then carried out. This segmentation consists in selecting the pixels whose intensity is between a minimum threshold and a maximum threshold and in modifying their intensity so that it becomes equal to the maximum intensity, for example 255. Such an operation makes it possible to distinguish the pixels that are neither too dark nor too light pixels that are too dark and too light by making them appear as the brightest (i.e. bright) pixels.
- the intensity of all the pixels located outside the area formed in the previous step is reduced to zero (darkest intensity) in the images of the four sequences of normalized images which are recorded on the medium. memory so to obtain the four masks M in which the standard driver or the seat appear clearly and are identifiable in the four corresponding postures.
- FIG. 3 illustrates a photographic example of a mask corresponding to the correct posture.
- FIG. 4 illustrates a photographic example of a mask corresponding to the first incorrect posture (driver 5 too far from the steering wheel).
- FIG. 5 illustrates a photographic example of a mask corresponding to the second incorrect posture (driver 5 too close to the steering wheel).
- Figure 6 illustrates a photographic example of a mask corresponding to the absent posture of the driver 5.
- the four masks M are stored in the memory area 21 of the electronic control unit 20 for their use when the vehicle 1 is running.
- the first camera 10 when the vehicle is moving, the first camera 10 generates a sequence of images showing the location of the driver 5 on his seat and sends it to the electronic control unit 20 in a step E1.
- the electronic control unit 20 receives from the first camera 10 the sequence of images of the driver's seat 5 and calculates, for each of the four masks M recorded in its memory area 21, the convolution product of said mask M by at least one image of the sequence of images received from the first camera 10 in order to obtain a correlation coefficient CC comprised between 0 and 1 in a step E2.
- the electronic control unit 20 determines in a step E3 the posture P of the driver 5 as being that associated with the mask M whose correlation coefficient is the highest, that is to say of the mask M whose the probability of corresponding to the actual posture of the driver 5 is the greatest.
- the electronic control unit 20 When the posture detected is that corresponding to the mask M for which the driver 5 is considered to be too far away (first incorrect posture, FIG. 4) or too close (second incorrect posture, FIG. 5), the electronic control unit 20 generates an alert A intended for the driver 5 in a step E4 so that he corrects his posture.
- This alert A can for example be audible, visual or tactile (vibrations or other).
- the alert A remains active as long as the driver 5 does not return to the correct posture (FIG. 3).
- the use of the second camera 40 is optional.
- the second camera 40 also generates a sequence of images when vehicle 1 is driving and sends it to the control unit electronics 20.
- This sequence of images represents the environment of the vehicle 1, preferably the front area of the vehicle 1 (road and surroundings).
- the electronic control unit 20 detects in the sequence of images received from the second camera 40 an external element (another vehicle, pedestrian, element of the road infrastructure, etc.) and assesses the risk of collision of vehicle 1 with said external element. Since such collision risk detection is known per se, it will not be further detailed here. In this example, the risk of collision with an external element can be low or high.
- the electronic control unit 20 does not trigger the alert A intended for the driver 5, the danger of a collision being low. relevant.
- the alert A is not triggered when a risk of collision is evaluated as being low regardless of the posture of the driver 5 (correct or incorrect).
- alert A is triggered when the risk of collision is high and the posture detected corresponds to an incorrect posture (FIGS. 4 or 5).
- the absent posture of the driver 5 in the seat can be used to avoid false detections, that is to say to avoid detecting a correct posture while the driver 5 is in a incorrect posture, in particular too glued to the steering wheel where we would essentially see the seat partly empty in the images.
- the mask M corresponding to the absent posture of the driver 5 (completely empty seat), makes it possible to distinguish with certainty an empty seat from a partially empty seat.
- the electronic control unit 20 can be programmed to detect that the vehicle 1 is driving in autonomous driving mode and in this case avoid generating the alert when the driver 5 is detected in incorrect posture ( Figures 4 or 5). Still in the case of an autonomous vehicle 1, the correct postures of the driver can be more varied, such as for example a sleeping posture, a resting posture, a reading posture, etc.
- the electronic control unit 20 can deactivate said airbag system 30, preferably the steering wheel cushion, when the driver 5 is in the second incorrect posture (FIG. 5), too close to the steering wheel in order to prevent triggering of the steering wheel airbag from injuring it in the event of triggering, then reactivating it as soon as the posture of the driver 5 is again correct.
- the invention therefore advantageously makes it possible to alert the driver 5 of a vehicle when his posture is incorrect and presents a danger to his safety when driving the vehicle, in particular in the event of a collision.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Image Processing (AREA)
- Image Analysis (AREA)
- Air Bags (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2008496A FR3113390B1 (fr) | 2020-08-14 | 2020-08-14 | Procédé de détermination de la posture d’un conducteur |
PCT/EP2021/071328 WO2022033891A1 (fr) | 2020-08-14 | 2021-07-29 | Procédé de détermination de la posture d'un conducteur |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4196371A1 true EP4196371A1 (fr) | 2023-06-21 |
Family
ID=74045580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21755718.0A Pending EP4196371A1 (fr) | 2020-08-14 | 2021-07-29 | Procédé de détermination de la posture d'un conducteur |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230311759A1 (fr) |
EP (1) | EP4196371A1 (fr) |
CN (1) | CN116348342A (fr) |
FR (1) | FR3113390B1 (fr) |
WO (1) | WO2022033891A1 (fr) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6005958A (en) * | 1997-04-23 | 1999-12-21 | Automotive Systems Laboratory, Inc. | Occupant type and position detection system |
DE10063697B4 (de) * | 2000-12-20 | 2006-07-13 | Siemens Ag | Verfahren und Vorrichtung zur Erfassung der Position eines Elements in einem Fahrzeug, insbesondere für Insassenschutzsysteme |
US20040220705A1 (en) * | 2003-03-13 | 2004-11-04 | Otman Basir | Visual classification and posture estimation of multiple vehicle occupants |
JP4740399B2 (ja) * | 2009-09-09 | 2011-08-03 | パナソニック株式会社 | 車両制御装置及び車両制御方法 |
CN103057503B (zh) | 2013-01-11 | 2016-03-30 | 浙江吉利汽车研究院有限公司杭州分公司 | 一种智能气囊控制方法 |
DE102014214978B4 (de) * | 2014-07-30 | 2016-06-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Feststellung der Identität einer Person auf einem Sitz eines Fahrzeugs |
DE102016225406A1 (de) * | 2016-12-19 | 2018-06-21 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Aktuieren zumindest eines Personenschutzmittels eines Fahrzeugs |
DE102018207977B4 (de) * | 2018-05-22 | 2023-11-02 | Zf Friedrichshafen Ag | Innenüberwachung für Sicherheitsgurteinstellung |
-
2020
- 2020-08-14 FR FR2008496A patent/FR3113390B1/fr active Active
-
2021
- 2021-07-29 WO PCT/EP2021/071328 patent/WO2022033891A1/fr unknown
- 2021-07-29 US US18/019,122 patent/US20230311759A1/en active Pending
- 2021-07-29 EP EP21755718.0A patent/EP4196371A1/fr active Pending
- 2021-07-29 CN CN202180056196.4A patent/CN116348342A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
CN116348342A (zh) | 2023-06-27 |
US20230311759A1 (en) | 2023-10-05 |
FR3113390B1 (fr) | 2022-10-07 |
WO2022033891A1 (fr) | 2022-02-17 |
FR3113390A1 (fr) | 2022-02-18 |
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