WO2021043559A1 - Système de communication dans un véhicule et procédé pour faire fonctionner un système de communication dans un véhicule - Google Patents

Système de communication dans un véhicule et procédé pour faire fonctionner un système de communication dans un véhicule Download PDF

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Publication number
WO2021043559A1
WO2021043559A1 PCT/EP2020/072809 EP2020072809W WO2021043559A1 WO 2021043559 A1 WO2021043559 A1 WO 2021043559A1 EP 2020072809 W EP2020072809 W EP 2020072809W WO 2021043559 A1 WO2021043559 A1 WO 2021043559A1
Authority
WO
WIPO (PCT)
Prior art keywords
front seat
projection
communication system
data
vehicle
Prior art date
Application number
PCT/EP2020/072809
Other languages
German (de)
English (en)
Inventor
Maryna Galovska
Markus Lalla
Jörg Czech
Thomas Hasemann
Original Assignee
Volkswagen Aktiengesellschaft
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 Volkswagen Aktiengesellschaft filed Critical Volkswagen Aktiengesellschaft
Publication of WO2021043559A1 publication Critical patent/WO2021043559A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/20—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/29—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area inside the vehicle, e.g. for viewing passengers or cargo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/008—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles allowing the driver to see passengers, e.g. for busses
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
    • B60R2300/8006—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for monitoring and displaying scenes of vehicle interior, e.g. for monitoring passengers or cargo
    • B60R2300/8013—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for monitoring and displaying scenes of vehicle interior, e.g. for monitoring passengers or cargo for child monitoring

Definitions

  • the present invention relates to a communication system in a vehicle having a front seat area and a rear seat area.
  • the invention also relates to a method for operating a communication system in a vehicle with a front seat area and a rear seat area.
  • the interior of vehicles is typically divided up in such a way that the driver and one or two passengers sit in a front area and the seats for other passengers are arranged behind it.
  • the driver's seat must face forward in the direction of travel to ensure an optimal view of the area in front of the vehicle. This can result in difficulties when communication between the vehicle occupants in the front area and passengers in the rear area is to be established: It is typically at least inconvenient and difficult for people in the front seats to establish a sufficient line of sight to the rear and all relevant areas of the rear View the interior of the vehicle.
  • Communication is particularly difficult when a passenger in the rear area of the vehicle looks against the direction of travel while the front seats are oriented in the direction of travel. This applies, for example, to seating and reclining devices for children who, if they are small, often have to be transported in rear-facing child seats for safety reasons. Furthermore, other transport devices can also make communication and, in particular, the establishment of a line of sight more difficult, for example when transporting people and ambulances or when transporting people with restricted mobility.
  • US 2017/0054949 A1 describes a camera system for a vehicle in which a camera records video data in the interior of the vehicle, which are then displayed to the driver. Furthermore, a user interface receives inputs from the driver for controlling the acquisition or reproduction of the data.
  • DE 202009 008746 U1 proposes a camera system for monitoring a child in a rear-facing baby seat attached to the rear seat of a motor vehicle. Image signals from a camera that encompass the interior of the baby seat are captured and displayed to the driver.
  • the present invention is based on the object of providing a communication system and a method for its operation which allow a simple and intuitively usable connection between different areas in the vehicle.
  • the communication system according to the invention in a vehicle with a front seat area and a rear seat area comprises a front seat video detection unit which is set up to detect front seat video data in the front seat area, a control unit which is set up to generate projection data as a function of the detected front seat video data , and a projection unit, which is set up to output the projection data by projecting onto a projection surface for a passenger in the rear seat area.
  • the projection unit is designed in a manner known per se and is set up to output a light distribution in such a way that an image of a graphic representation is generated on the projection surface. That is, on the basis of the projection data, a light distribution is generated on a surface of the projection surface in such a way that the projection data can be visually perceived and recorded by the passenger.
  • the projection unit can be controlled in such a way that image points arranged in a matrix are formed on the projection surface and the intensity of the light distribution generated can be controlled separately for each of the image points.
  • Modern projectors can generate a light distribution in such a way that its intensity is adapted to an ambient brightness in such a way that the output projection for the human Eye or is clearly visible to the respective passenger.
  • the projection unit can also be made so small and with a low mass that, in particular in the event of a full brake application or an accident, no excessive deceleration forces act on the projector. This reduces the risk of the unit becoming detached and causing greater damage if it hits a person or an object. This avoids a disadvantage of other dispensing systems in which relatively heavy elements have to be additionally secured.
  • the projection unit can also include projection optics, by means of which the output light distribution can be adapted in such a way that, in particular, distortions due to the geometry of the projection surface and / or due to the geometric arrangement of the projection unit relative to the projection surface are compensated for.
  • a detection unit can also be provided for recording calibration data and the projection optics can be calibrated as a function of the calibration data recorded.
  • the projection unit is detachably connected to the vehicle and is designed, for example, as a separately movable unit. It can be fastened, for example, to a headrest in the vehicle, in particular to the headrest of a front seat, or to a seat device of the passenger in the rear seat area, for which the projection takes place.
  • a seat device can be, for example, a baby seat or a child seat.
  • the projection unit can also be integrated into a further unit in the interior of the vehicle, for example a headrest or seat device.
  • the projection data can be transmitted to the projection unit, for example, via a wireless data connection, for example a Bluetooth or WLAN connection, or by means of a cable-based data connection.
  • a wireless data connection for example a Bluetooth or WLAN connection
  • a cable-based data connection for example a Wi-Fi connection
  • the front seat video detection unit is arranged in such a way that at least part of the face of the driver or front passenger can be detected.
  • non-verbal signals such as facial expressions or gestures
  • the front seat video data include front seat audio data.
  • an acoustically perceptible communication between the front and rear seat areas can advantageously take place.
  • speech or other sounds can be transmitted to the rear from the front seat area, for example in order to calm down a child as a passenger in the rear seat area.
  • At least one loudspeaker is arranged in the rear seat area and is set up to output the front seat audio data.
  • the loudspeaker can in particular be integrated into the projection unit.
  • a system integrated in the vehicle can be used to reproduce audio signals, in particular a loudspeaker directed into the vehicle interior.
  • the front seat video data are recorded and projected onto the projection surface essentially counter to the direction of travel of the vehicle.
  • the communication on the basis of the video data advantageously takes place in a manner that would be difficult to implement without the communication system.
  • the front seat video detection unit is oriented forward in the direction of travel, while the projection takes place against the direction of travel.
  • the alignment in or against the direction of travel can also have a horizontal and vertical pivot angle, but the alignment is predominantly forward or backward.
  • video data of a face of the driver or front passenger facing in the direction of travel are recorded in the front seat area and the projection in the rear seat area takes place in such a way that it can be perceived by a passenger facing the direction of travel.
  • the projection can be visible to a child who is facing the direction of travel in the rear seat area in a baby seat or a child seat.
  • the projection surface is formed on a headliner in the rear seat area of the vehicle.
  • the projection surface can also be formed on a backrest of a rear seat.
  • an area generally present and rarely used in vehicle interiors is advantageously used to generate the projection.
  • the projection surface can also be formed in another way, for example from part of a seat device, for example as part of a baby seat, or by a vehicle seat, for example a back surface of a rear seat.
  • a projection surface can be introduced into the vehicle as a separate device, for example a projection screen, which can run parallel to a backrest of a rear seat or along the headliner, for example, especially if these are not suitable as a projection surface because they are darkly colored.
  • the communication system further comprises a rear seat video detection unit which is set up to detect rear seat video data in the rear seat area, and a front seat output unit which is set up to output the rear seat video data perceptibly for a passenger in the front seat area.
  • the communication system can advantageously be designed to be bidirectional, and an observer in the front seat area can more easily record processes in the rear view area.
  • the rear seat video data also include audio data that are output in the front seat area, as already described above for the reverse case.
  • the rear seat video data are output in the front seat area in such a way that a passenger located there, in particular a driver or front passenger, can capture the rear seat video data while sitting in the direction of travel.
  • the output takes place in particular by means of a display surface which is designed such that it is viewed when looking in the direction of travel.
  • the output of the rear seat video data is particularly perceptible to a driver or front passenger on the front seats in the vehicle.
  • a display on a center console in the front seat area of the vehicle can be used, as is already typically used in vehicles.
  • at least part of the rear seat video data can be output from the area of augmented reality using a field of view display, a head-up display or another output device, with the rear seat video data advantageously being able to be recorded here without that the user's line of sight must be directed from the surrounding traffic, for example.
  • a display of a mobile user device such as a table computer or cell phone, can be used for output.
  • the rear seat video detection unit is designed in a manner known per se.
  • the rear seat video detection unit can also be fixed in the vehicle, either static or pivotable; it can for example be integrated into a seat in the vehicle, for example a front seat, or it can be arranged on the roof lining in the vehicle interior.
  • the communication system further comprises an input unit which is set up to record an input from a user in the front seat area, the control unit being set up to also generate the projection data as a function of the recorded input.
  • the projection data can advantageously be adapted particularly well to the current needs of a user.
  • the input unit can be designed in a manner known per se and comprise, for example, a user interface with control elements. These can be output on an output unit for video data or other graphic data in the front seat area. Operation can also take place by means of inputs that are recorded by means of an external device, for example a mobile user device.
  • the communication system can also capture voice commands, in particular in the front seat area, and the projection data can be generated as a function of the voice commands.
  • control unit is set up to also generate the projection data on the basis of a utterance, a movement, a gesture or a behavioral state.
  • the utterance, movement, gesture or behavioral state is determined in particular on the basis of the recorded rear seat video data. This advantageously allows a particularly targeted control of the communication system that is tailored to the needs of the passenger.
  • gestures are recorded by means of the rear seat or front seat video recording unit or the recorded rear seat or front seat video data are evaluated in order to recognize a facial expression or behavioral state.
  • a behavioral state can include an indication of a mood.
  • a restless child can be recognized in the back seat area.
  • the projection data can then be formed in such a way that a calming effect is achieved.
  • a status message can be output in the front seat area, which is formed on the basis of the rear seat video data. So For example, it can be pointed out that a child in the back seat has just woken up and needs the attention of a carer.
  • the rear seat video detection unit can be designed in such a way that it detects video data in a fixed detection area, this being characterized in particular by a detection angle range.
  • the detection area can also be designed dynamically and can be set, for example, as a function of a user input and / or an automatic control signal.
  • Such an automatic control signal can be generated, for example, in such a way that the face or the body of a child is recorded as detailed as possible in the detection area.
  • zooming and / or pivoting of the rear seat video detection unit or detection optics can be carried out.
  • the detection area in which the front seat or rear seat video detection unit detects video data is adapted to a recognized person in such a way that this person is detected in a particularly clearly recognizable manner; For example, the person is moved to the center of the detection area and recorded in full format.
  • control unit is also set up to reproduce stored video recording data by means of the projection unit as a function of a user input.
  • stored audio recording data can be played back in the rear seat area.
  • video or audio recordings can advantageously be output for the passenger in the rear seat area. For example, recordings of a visual appearance and / or acoustic utterances of a person who is not in the vehicle can be reproduced, for example a parent whose child is in the rear seat area.
  • Such a recording can, for example, be called up from a storage unit located in the vehicle or provided by a unit which is separably connected to the communication system.
  • the video or audio recording data can be provided by a mobile phone; the video or audio recording data can be present as a file with a completed recording or as stream data, it being possible in particular for recording data to be transmitted in real time.
  • front seat video data are recorded in the front seat area.
  • projection data are generated and the projection data are transmitted Projecting onto a projection surface for a passenger in the rear seat area so that they can be grasped.
  • the method according to the invention is designed to operate the communication system according to the invention described above. It thus has the same advantages as the system according to the invention.
  • Figure 1 shows a vehicle with an embodiment of the invention
  • FIG. 1 an exemplary embodiment of the communication system according to the invention is explained in a vehicle.
  • the vehicle 1 includes a front seat 2 arranged in a front seat area of the vehicle 1 and a rear seat 3 in a rear seat area.
  • the seat device 4 can be designed and arranged in a different manner, for example in the case of a conventional rear seat in the direction of travel F, a device for transporting prone beds or a device for securing wheelchairs.
  • the features described below with reference to the driver 10 can also be transferred analogously to a front passenger or a further vehicle occupant in a front seat area of the vehicle 1.
  • Rear seat video detection units 6, 7 are arranged in the rear seat area of the vehicle 1. These are designed as cameras in a manner known per se and each have a detection area in which video data can be detected. This detection area is designed in such a way that the video data at least partially encompass the toddler 5 in the baby seat 4, in particular the head and the upper body are detected.
  • the rear seat video detection units 6, 7 are fixedly arranged in the interior of the vehicle 1, for example on the headliner.
  • detection units can alternatively or additionally be designed as mobile units and / or integrated into the seat device 4.
  • only a rear seat Video detection unit 6, 7 is provided, for example at one of the positions shown in FIG. 1 or at a further position, for example on a headrest in the rear seat area.
  • the rear seat video detection units 6, 7 can be controlled separately from one another in such a way that they can be activated separately and their detection areas can be set, for example by adjusting detection optics.
  • the detection areas are formed in such a way that the upper body and the face of the toddler 5 are visible in particularly detail.
  • a projection unit 8 is also arranged in the rear seat area of the vehicle 1. This is designed in a manner known per se and projects a light distribution onto the roof lining in the rear seat area of the vehicle 1. The projection takes place on the basis of projection data which the projection unit 8 receives via a data link, in particular wirelessly.
  • the fraction unit 8 is arranged displaced in the direction of travel F with respect to the position of the small child 5. As a result, in the event of a strong deceleration, the projection unit 8 is accelerated in a direction away from the small child 5 and the risk of a collision is excluded.
  • the lighting unit 8 is also attached to the baby seat 4 so that the direction in which the projection is output is also changed if the position of the baby seat 4 is changed and the projection is always output in the field of view of the toddler 5.
  • a front seat video detection unit 13 is arranged, which in the exemplary embodiment is integrated in the rearview mirror of the vehicle 1. It is designed in such a way that the face of the driver 10 is recorded.
  • a touchscreen 11 is arranged on the dashboard of the vehicle 1, which both as an input unit 11 uses a touch-sensitive surface to record inputs and as a front seat output unit 11 outputs video data by means of a display.
  • a control unit 12 is provided which, in the exemplary embodiment, is designed as a mobile device 12 fastened in a holder.
  • the mobile device 12 is connected in terms of data technology to the rear seat video acquisition units 6, 7 and the front seat video acquisition unit 13 as well as to the projection unit 8 and the touchscreen 11, in particular wirelessly.
  • the control unit 12 can be formed in another way, for example as a module of a computer system integrated in the vehicle 1.
  • the front seat video detection unit 13 and the touchscreen 11 are integrated into the mobile device 12.
  • the front seat output unit 11 can also be designed as a field of view display, for example a head-up display or an output device known from the field of virtual reality.
  • the front seat video acquisition unit 13 acquires front seat video data including the head portion of the driver 10.
  • the front seat video data are transmitted to the control unit 12, which generates the projection data and transmits them to the projection unit 8 in the rear seat area.
  • the position unit 8 is controlled in such a way that a projection is thrown onto the roof lining in such a way that the toddler 5 located in the baby seat 4 can perceive it.
  • the toddler 5 can thereby capture the facial expressions and gestures of the driver 10.
  • the rear seat video acquisition units 6, 7 acquire rear seat video data that include a view of the small child 5 and transmit them to the control unit 12.
  • Front seat output data are generated and output by means of the front seat output unit 11.
  • audio data are also recorded in the front seat area and output in the rear seat area so that they can be recorded by the small child 5, for example by a loudspeaker integrated with the projection unit 8 in a single device.
  • audio data can also be recorded in the rear seat area and output by the front seat output unit 11, in particular by an integrated loudspeaker. This provides bidirectional communication in which the driver 10 and the toddler 5 can react and interact with one another.
  • the driver 10 can make an input by means of the touchscreen 11, for example by touching a button that is output on the touchscreen in the manner of a graphical user interface known per se.
  • the driver 10 can select different sources for the video data, in addition to a direct transmission of the video data of the driver 10 acquired by the front seat video acquisition unit 13 also already stored video data can be output, such as certain images or recordings, for example of another person.
  • video data captured by means of other video capture units can be reproduced, for example data captured by means of a continuous stream from a remote source which is connected to the control unit 12, for example, via a telecommunications network. In this way, for example, absent people can also use the communication system.
  • the video data recorded in the rear seat area or in the front seat area are analyzed in order to recognize gestures, utterances or movements or to detect a behavioral state. For example, it can be recognized here when the toddler 5 is currently sleeping or when it has woken up.
  • a corresponding message is output by the front seat output unit 11 in order to point out to the driver 10 that calming measures may be necessary.
  • facial expressions can be evaluated, for example in order to identify dissatisfaction, discomfort or well-being;
  • a corresponding message can be output by means of the front seat output unit 11.
  • conditions are defined for which detected states an output of the rear seat video data by means of the front seat output unit 11 is initiated if this was not activated beforehand.

Abstract

L'invention concerne un système de communication dans un véhicule (1) ayant une région de siège avant et une région de siège arrière, ledit système de communication comprenant une unité de capture de vidéo de siège avant (13), qui est conçue pour capturer des données vidéo de siège avant dans la région de siège avant ; une unité de commande, qui est conçue pour générer des données de projection selon les données vidéo de siège avant capturées ; et une unité de projection (8), qui est conçue pour délivrer en sortie les données de projection par projection sur une surface de projection (9) pour un passager dans la région de siège arrière. Dans le procédé de fonctionnement d'un système de communication dans un véhicule (1) ayant une région de siège avant et une région de siège arrière, des données vidéo de siège avant sont capturées dans la région de siège avant, des données de projection sont générées en fonction des données vidéo de siège avant capturées et les données de projection sont délivrées de manière reproductible par projection sur une surface de projection pour un passager dans la région de siège arrière.
PCT/EP2020/072809 2019-09-05 2020-08-13 Système de communication dans un véhicule et procédé pour faire fonctionner un système de communication dans un véhicule WO2021043559A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102019213505.6 2019-09-05
DE102019213505 2019-09-05
DE102019214624.4 2019-09-25
DE102019214624.4A DE102019214624B3 (de) 2019-09-05 2019-09-25 Kommunikationssystem in einem Fahrzeug und Verfahren zum Betreiben eines Kommunikationssystems in einem Fahrzeug

Publications (1)

Publication Number Publication Date
WO2021043559A1 true WO2021043559A1 (fr) 2021-03-11

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PCT/EP2020/072809 WO2021043559A1 (fr) 2019-09-05 2020-08-13 Système de communication dans un véhicule et procédé pour faire fonctionner un système de communication dans un véhicule

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Country Link
DE (1) DE102019214624B3 (fr)
WO (1) WO2021043559A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022104161A1 (de) 2022-02-22 2023-08-24 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum automatischen Ausrichten eines Babyspiegels innerhalb eines Fahrzeugs

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JP2003025911A (ja) * 2001-07-11 2003-01-29 Denso Corp 車載用映像表示装置
DE202009008746U1 (de) 2009-06-25 2009-12-17 Wissen, Michael, Dr.-Ing. Kamerasystem zur Überwachung eines Kindes in einer auf dem Rücksitz eines Kraftfahrzeugs befestigten, rückwärtsgerichteten Babyschale
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DE102007014581B4 (de) * 2006-10-30 2013-03-14 Johnson Controls Gmbh Fahrzeuganzeigesystem und Verfahren zum Betrieb eines Fahrzeuganzeigesystems

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Publication number Priority date Publication date Assignee Title
JP2003025911A (ja) * 2001-07-11 2003-01-29 Denso Corp 車載用映像表示装置
DE202009008746U1 (de) 2009-06-25 2009-12-17 Wissen, Michael, Dr.-Ing. Kamerasystem zur Überwachung eines Kindes in einer auf dem Rücksitz eines Kraftfahrzeugs befestigten, rückwärtsgerichteten Babyschale
US20170054949A1 (en) 2015-08-19 2017-02-23 Faraday&Future Inc. In-vehicle camera system
US20170190288A1 (en) * 2015-12-31 2017-07-06 Continental Automotive Systems, Inc. Child video monitoring device
JP2018093427A (ja) * 2016-12-06 2018-06-14 小島プレス工業株式会社 車載用投影装置

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